drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2022 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71 static bool lpfc_pldv_detect;
  72
  73 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  75 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  96 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  97 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  98 static void lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba);
  99
 100 static struct scsi_transport_template *lpfc_transport_template = NULL;
 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 102 static DEFINE_IDR(lpfc_hba_index);
 103 #define LPFC_NVMET_BUF_POST 254
 104 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 105
 106 /**
 107  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 108  * @phba: pointer to lpfc hba data structure.
 109  *
 110  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 111  * mailbox command. It retrieves the revision information from the HBA and
 112  * collects the Vital Product Data (VPD) about the HBA for preparing the
 113  * configuration of the HBA.
 114  *
 115  * Return codes:
 116  *   0 - success.
 117  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 118  *   Any other value - indicates an error.
 119  **/
 120 int
 121 lpfc_config_port_prep(struct lpfc_hba *phba)
 122 {
 123         lpfc_vpd_t *vp = &phba->vpd;
 124         int i = 0, rc;
 125         LPFC_MBOXQ_t *pmb;
 126         MAILBOX_t *mb;
 127         char *lpfc_vpd_data = NULL;
 128         uint16_t offset = 0;
 129         static char licensed[56] =
 130                     "key unlock for use with gnu public licensed code only\0";
 131         static int init_key = 1;
 132
 133         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 134         if (!pmb) {
 135                 phba->link_state = LPFC_HBA_ERROR;
 136                 return -ENOMEM;
 137         }
 138
 139         mb = &pmb->u.mb;
 140         phba->link_state = LPFC_INIT_MBX_CMDS;
 141
 142         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 143                 if (init_key) {
 144                         uint32_t *ptext = (uint32_t *) licensed;
 145
 146                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 147                                 *ptext = cpu_to_be32(*ptext);
 148                         init_key = 0;
 149                 }
 150
 151                 lpfc_read_nv(phba, pmb);
 152                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 153                         sizeof (mb->un.varRDnvp.rsvd3));
 154                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 155                          sizeof (licensed));
 156
 157                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 158
 159                 if (rc != MBX_SUCCESS) {
 160                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 161                                         "0324 Config Port initialization "
 162                                         "error, mbxCmd x%x READ_NVPARM, "
 163                                         "mbxStatus x%x\n",
 164                                         mb->mbxCommand, mb->mbxStatus);
 165                         mempool_free(pmb, phba->mbox_mem_pool);
 166                         return -ERESTART;
 167                 }
 168                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 169                        sizeof(phba->wwnn));
 170                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 171                        sizeof(phba->wwpn));
 172         }
 173
 174         /*
 175          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 176          * which was already set in lpfc_get_cfgparam()
 177          */
 178         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 179
 180         /* Setup and issue mailbox READ REV command */
 181         lpfc_read_rev(phba, pmb);
 182         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 183         if (rc != MBX_SUCCESS) {
 184                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 185                                 "0439 Adapter failed to init, mbxCmd x%x "
 186                                 "READ_REV, mbxStatus x%x\n",
 187                                 mb->mbxCommand, mb->mbxStatus);
 188                 mempool_free( pmb, phba->mbox_mem_pool);
 189                 return -ERESTART;
 190         }
 191
 192
 193         /*
 194          * The value of rr must be 1 since the driver set the cv field to 1.
 195          * This setting requires the FW to set all revision fields.
 196          */
 197         if (mb->un.varRdRev.rr == 0) {
 198                 vp->rev.rBit = 0;
 199                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 200                                 "0440 Adapter failed to init, READ_REV has "
 201                                 "missing revision information.\n");
 202                 mempool_free(pmb, phba->mbox_mem_pool);
 203                 return -ERESTART;
 204         }
 205
 206         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 207                 mempool_free(pmb, phba->mbox_mem_pool);
 208                 return -EINVAL;
 209         }
 210
 211         /* Save information as VPD data */
 212         vp->rev.rBit = 1;
 213         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 214         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 215         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 216         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 217         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 218         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 219         vp->rev.smRev = mb->un.varRdRev.smRev;
 220         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 221         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 222         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 223         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 224         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 225         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 226         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 227         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 228
 229         /* If the sli feature level is less then 9, we must
 230          * tear down all RPIs and VPIs on link down if NPIV
 231          * is enabled.
 232          */
 233         if (vp->rev.feaLevelHigh < 9)
 234                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 235
 236         if (lpfc_is_LC_HBA(phba->pcidev->device))
 237                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 238                                                 sizeof (phba->RandomData));
 239
 240         /* Get adapter VPD information */
 241         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 242         if (!lpfc_vpd_data)
 243                 goto out_free_mbox;
 244         do {
 245                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 246                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 247
 248                 if (rc != MBX_SUCCESS) {
 249                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 250                                         "0441 VPD not present on adapter, "
 251                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 252                                         mb->mbxCommand, mb->mbxStatus);
 253                         mb->un.varDmp.word_cnt = 0;
 254                 }
 255                 /* dump mem may return a zero when finished or we got a
 256                  * mailbox error, either way we are done.
 257                  */
 258                 if (mb->un.varDmp.word_cnt == 0)
 259                         break;
 260
 261                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 262                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 263                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 264                                       lpfc_vpd_data + offset,
 265                                       mb->un.varDmp.word_cnt);
 266                 offset += mb->un.varDmp.word_cnt;
 267         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 268
 269         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 270
 271         kfree(lpfc_vpd_data);
 272 out_free_mbox:
 273         mempool_free(pmb, phba->mbox_mem_pool);
 274         return 0;
 275 }
 276
 277 /**
 278  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 279  * @phba: pointer to lpfc hba data structure.
 280  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 281  *
 282  * This is the completion handler for driver's configuring asynchronous event
 283  * mailbox command to the device. If the mailbox command returns successfully,
 284  * it will set internal async event support flag to 1; otherwise, it will
 285  * set internal async event support flag to 0.
 286  **/
 287 static void
 288 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 289 {
 290         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 291                 phba->temp_sensor_support = 1;
 292         else
 293                 phba->temp_sensor_support = 0;
 294         mempool_free(pmboxq, phba->mbox_mem_pool);
 295         return;
 296 }
 297
 298 /**
 299  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 300  * @phba: pointer to lpfc hba data structure.
 301  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 302  *
 303  * This is the completion handler for dump mailbox command for getting
 304  * wake up parameters. When this command complete, the response contain
 305  * Option rom version of the HBA. This function translate the version number
 306  * into a human readable string and store it in OptionROMVersion.
 307  **/
 308 static void
 309 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 310 {
 311         struct prog_id *prg;
 312         uint32_t prog_id_word;
 313         char dist = ' ';
 314         /* character array used for decoding dist type. */
 315         char dist_char[] = "nabx";
 316
 317         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 318                 mempool_free(pmboxq, phba->mbox_mem_pool);
 319                 return;
 320         }
 321
 322         prg = (struct prog_id *) &prog_id_word;
 323
 324         /* word 7 contain option rom version */
 325         prog_id_word = pmboxq->u.mb.un.varWords[7];
 326
 327         /* Decode the Option rom version word to a readable string */
 328         if (prg->dist < 4)
 329                 dist = dist_char[prg->dist];
 330
 331         if ((prg->dist == 3) && (prg->num == 0))
 332                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 333                         prg->ver, prg->rev, prg->lev);
 334         else
 335                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 336                         prg->ver, prg->rev, prg->lev,
 337                         dist, prg->num);
 338         mempool_free(pmboxq, phba->mbox_mem_pool);
 339         return;
 340 }
 341
 342 /**
 343  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 344  * @vport: pointer to lpfc vport data structure.
 345  *
 346  *
 347  * Return codes
 348  *   None.
 349  **/
 350 void
 351 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 352 {
 353         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 354         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 355
 356         /*
 357          * If the name is empty or there exists a soft name
 358          * then copy the service params name, otherwise use the fc name
 359          */
 360         if (vport->fc_nodename.u.wwn[0] == 0)
 361                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 362                         sizeof(struct lpfc_name));
 363         else
 364                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 365                         sizeof(struct lpfc_name));
 366
 367         /*
 368          * If the port name has changed, then set the Param changes flag
 369          * to unreg the login
 370          */
 371         if (vport->fc_portname.u.wwn[0] != 0 &&
 372                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 373                         sizeof(struct lpfc_name)))
 374                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 375
 376         if (vport->fc_portname.u.wwn[0] == 0 ||
 377             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 378             vport->vport_flag & FAWWPN_SET) {
 379                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name));
 381                 vport->vport_flag &= ~FAWWPN_SET;
 382                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 383                         vport->vport_flag |= FAWWPN_SET;
 384         }
 385         else
 386                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 387                         sizeof(struct lpfc_name));
 388 }
 389
 390 /**
 391  * lpfc_config_port_post - Perform lpfc initialization after config port
 392  * @phba: pointer to lpfc hba data structure.
 393  *
 394  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 395  * command call. It performs all internal resource and state setups on the
 396  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 397  * ELS ring timers, etc.
 398  *
 399  * Return codes
 400  *   0 - success.
 401  *   Any other value - error.
 402  **/
 403 int
 404 lpfc_config_port_post(struct lpfc_hba *phba)
 405 {
 406         struct lpfc_vport *vport = phba->pport;
 407         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 408         LPFC_MBOXQ_t *pmb;
 409         MAILBOX_t *mb;
 410         struct lpfc_dmabuf *mp;
 411         struct lpfc_sli *psli = &phba->sli;
 412         uint32_t status, timeout;
 413         int i, j;
 414         int rc;
 415
 416         spin_lock_irq(&phba->hbalock);
 417         /*
 418          * If the Config port completed correctly the HBA is not
 419          * over heated any more.
 420          */
 421         if (phba->over_temp_state == HBA_OVER_TEMP)
 422                 phba->over_temp_state = HBA_NORMAL_TEMP;
 423         spin_unlock_irq(&phba->hbalock);
 424
 425         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 426         if (!pmb) {
 427                 phba->link_state = LPFC_HBA_ERROR;
 428                 return -ENOMEM;
 429         }
 430         mb = &pmb->u.mb;
 431
 432         /* Get login parameters for NID.  */
 433         rc = lpfc_read_sparam(phba, pmb, 0);
 434         if (rc) {
 435                 mempool_free(pmb, phba->mbox_mem_pool);
 436                 return -ENOMEM;
 437         }
 438
 439         pmb->vport = vport;
 440         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 441                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 442                                 "0448 Adapter failed init, mbxCmd x%x "
 443                                 "READ_SPARM mbxStatus x%x\n",
 444                                 mb->mbxCommand, mb->mbxStatus);
 445                 phba->link_state = LPFC_HBA_ERROR;
 446                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 447                 mempool_free(pmb, phba->mbox_mem_pool);
 448                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 449                 kfree(mp);
 450                 return -EIO;
 451         }
 452
 453         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 454
 455         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 456         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457         kfree(mp);
 458         pmb->ctx_buf = NULL;
 459         lpfc_update_vport_wwn(vport);
 460
 461         /* Update the fc_host data structures with new wwn. */
 462         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 463         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 464         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 465
 466         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 467         /* This should be consolidated into parse_vpd ? - mr */
 468         if (phba->SerialNumber[0] == 0) {
 469                 uint8_t *outptr;
 470
 471                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 472                 for (i = 0; i < 12; i++) {
 473                         status = *outptr++;
 474                         j = ((status & 0xf0) >> 4);
 475                         if (j <= 9)
 476                                 phba->SerialNumber[i] =
 477                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 478                         else
 479                                 phba->SerialNumber[i] =
 480                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 481                         i++;
 482                         j = (status & 0xf);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                 }
 490         }
 491
 492         lpfc_read_config(phba, pmb);
 493         pmb->vport = vport;
 494         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 495                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 496                                 "0453 Adapter failed to init, mbxCmd x%x "
 497                                 "READ_CONFIG, mbxStatus x%x\n",
 498                                 mb->mbxCommand, mb->mbxStatus);
 499                 phba->link_state = LPFC_HBA_ERROR;
 500                 mempool_free( pmb, phba->mbox_mem_pool);
 501                 return -EIO;
 502         }
 503
 504         /* Check if the port is disabled */
 505         lpfc_sli_read_link_ste(phba);
 506
 507         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 508         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 509                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 510                                 "3359 HBA queue depth changed from %d to %d\n",
 511                                 phba->cfg_hba_queue_depth,
 512                                 mb->un.varRdConfig.max_xri);
 513                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 514         }
 515
 516         phba->lmt = mb->un.varRdConfig.lmt;
 517
 518         /* Get the default values for Model Name and Description */
 519         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 520
 521         phba->link_state = LPFC_LINK_DOWN;
 522
 523         /* Only process IOCBs on ELS ring till hba_state is READY */
 524         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 525                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 526         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 527                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 528
 529         /* Post receive buffers for desired rings */
 530         if (phba->sli_rev != 3)
 531                 lpfc_post_rcv_buf(phba);
 532
 533         /*
 534          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 535          */
 536         if (phba->intr_type == MSIX) {
 537                 rc = lpfc_config_msi(phba, pmb);
 538                 if (rc) {
 539                         mempool_free(pmb, phba->mbox_mem_pool);
 540                         return -EIO;
 541                 }
 542                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 543                 if (rc != MBX_SUCCESS) {
 544                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 545                                         "0352 Config MSI mailbox command "
 546                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 547                                         pmb->u.mb.mbxCommand,
 548                                         pmb->u.mb.mbxStatus);
 549                         mempool_free(pmb, phba->mbox_mem_pool);
 550                         return -EIO;
 551                 }
 552         }
 553
 554         spin_lock_irq(&phba->hbalock);
 555         /* Initialize ERATT handling flag */
 556         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 557
 558         /* Enable appropriate host interrupts */
 559         if (lpfc_readl(phba->HCregaddr, &status)) {
 560                 spin_unlock_irq(&phba->hbalock);
 561                 return -EIO;
 562         }
 563         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 564         if (psli->num_rings > 0)
 565                 status |= HC_R0INT_ENA;
 566         if (psli->num_rings > 1)
 567                 status |= HC_R1INT_ENA;
 568         if (psli->num_rings > 2)
 569                 status |= HC_R2INT_ENA;
 570         if (psli->num_rings > 3)
 571                 status |= HC_R3INT_ENA;
 572
 573         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 574             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 575                 status &= ~(HC_R0INT_ENA);
 576
 577         writel(status, phba->HCregaddr);
 578         readl(phba->HCregaddr); /* flush */
 579         spin_unlock_irq(&phba->hbalock);
 580
 581         /* Set up ring-0 (ELS) timer */
 582         timeout = phba->fc_ratov * 2;
 583         mod_timer(&vport->els_tmofunc,
 584                   jiffies + msecs_to_jiffies(1000 * timeout));
 585         /* Set up heart beat (HB) timer */
 586         mod_timer(&phba->hb_tmofunc,
 587                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 588         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 589         phba->last_completion_time = jiffies;
 590         /* Set up error attention (ERATT) polling timer */
 591         mod_timer(&phba->eratt_poll,
 592                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 593
 594         if (phba->hba_flag & LINK_DISABLED) {
 595                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 596                                 "2598 Adapter Link is disabled.\n");
 597                 lpfc_down_link(phba, pmb);
 598                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 599                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 600                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 601                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 602                                         "2599 Adapter failed to issue DOWN_LINK"
 603                                         " mbox command rc 0x%x\n", rc);
 604
 605                         mempool_free(pmb, phba->mbox_mem_pool);
 606                         return -EIO;
 607                 }
 608         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 609                 mempool_free(pmb, phba->mbox_mem_pool);
 610                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 611                 if (rc)
 612                         return rc;
 613         }
 614         /* MBOX buffer will be freed in mbox compl */
 615         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 616         if (!pmb) {
 617                 phba->link_state = LPFC_HBA_ERROR;
 618                 return -ENOMEM;
 619         }
 620
 621         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 622         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 623         pmb->vport = phba->pport;
 624         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 625
 626         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 627                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 628                                 "0456 Adapter failed to issue "
 629                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 630                                 rc);
 631                 mempool_free(pmb, phba->mbox_mem_pool);
 632         }
 633
 634         /* Get Option rom version */
 635         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 636         if (!pmb) {
 637                 phba->link_state = LPFC_HBA_ERROR;
 638                 return -ENOMEM;
 639         }
 640
 641         lpfc_dump_wakeup_param(phba, pmb);
 642         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 643         pmb->vport = phba->pport;
 644         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 645
 646         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 647                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 648                                 "0435 Adapter failed "
 649                                 "to get Option ROM version status x%x\n", rc);
 650                 mempool_free(pmb, phba->mbox_mem_pool);
 651         }
 652
 653         return 0;
 654 }
 655
 656 /**
 657  * lpfc_sli4_refresh_params - update driver copy of params.
 658  * @phba: Pointer to HBA context object.
 659  *
 660  * This is called to refresh driver copy of dynamic fields from the
 661  * common_get_sli4_parameters descriptor.
 662  **/
 663 int
 664 lpfc_sli4_refresh_params(struct lpfc_hba *phba)
 665 {
 666         LPFC_MBOXQ_t *mboxq;
 667         struct lpfc_mqe *mqe;
 668         struct lpfc_sli4_parameters *mbx_sli4_parameters;
 669         int length, rc;
 670
 671         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 672         if (!mboxq)
 673                 return -ENOMEM;
 674
 675         mqe = &mboxq->u.mqe;
 676         /* Read the port's SLI4 Config Parameters */
 677         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
 678                   sizeof(struct lpfc_sli4_cfg_mhdr));
 679         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
 680                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
 681                          length, LPFC_SLI4_MBX_EMBED);
 682
 683         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 684         if (unlikely(rc)) {
 685                 mempool_free(mboxq, phba->mbox_mem_pool);
 686                 return rc;
 687         }
 688         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
 689         phba->sli4_hba.pc_sli4_params.mi_ver =
 690                         bf_get(cfg_mi_ver, mbx_sli4_parameters);
 691         phba->sli4_hba.pc_sli4_params.cmf =
 692                         bf_get(cfg_cmf, mbx_sli4_parameters);
 693         phba->sli4_hba.pc_sli4_params.pls =
 694                         bf_get(cfg_pvl, mbx_sli4_parameters);
 695
 696         mempool_free(mboxq, phba->mbox_mem_pool);
 697         return rc;
 698 }
 699
 700 /**
 701  * lpfc_hba_init_link - Initialize the FC link
 702  * @phba: pointer to lpfc hba data structure.
 703  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 704  *
 705  * This routine will issue the INIT_LINK mailbox command call.
 706  * It is available to other drivers through the lpfc_hba data
 707  * structure for use as a delayed link up mechanism with the
 708  * module parameter lpfc_suppress_link_up.
 709  *
 710  * Return code
 711  *              0 - success
 712  *              Any other value - error
 713  **/
 714 static int
 715 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 716 {
 717         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 718 }
 719
 720 /**
 721  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 722  * @phba: pointer to lpfc hba data structure.
 723  * @fc_topology: desired fc topology.
 724  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 725  *
 726  * This routine will issue the INIT_LINK mailbox command call.
 727  * It is available to other drivers through the lpfc_hba data
 728  * structure for use as a delayed link up mechanism with the
 729  * module parameter lpfc_suppress_link_up.
 730  *
 731  * Return code
 732  *              0 - success
 733  *              Any other value - error
 734  **/
 735 int
 736 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 737                                uint32_t flag)
 738 {
 739         struct lpfc_vport *vport = phba->pport;
 740         LPFC_MBOXQ_t *pmb;
 741         MAILBOX_t *mb;
 742         int rc;
 743
 744         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 745         if (!pmb) {
 746                 phba->link_state = LPFC_HBA_ERROR;
 747                 return -ENOMEM;
 748         }
 749         mb = &pmb->u.mb;
 750         pmb->vport = vport;
 751
 752         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 753             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 754              !(phba->lmt & LMT_1Gb)) ||
 755             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 756              !(phba->lmt & LMT_2Gb)) ||
 757             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 758              !(phba->lmt & LMT_4Gb)) ||
 759             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 760              !(phba->lmt & LMT_8Gb)) ||
 761             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 762              !(phba->lmt & LMT_10Gb)) ||
 763             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 764              !(phba->lmt & LMT_16Gb)) ||
 765             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 766              !(phba->lmt & LMT_32Gb)) ||
 767             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 768              !(phba->lmt & LMT_64Gb))) {
 769                 /* Reset link speed to auto */
 770                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 771                                 "1302 Invalid speed for this board:%d "
 772                                 "Reset link speed to auto.\n",
 773                                 phba->cfg_link_speed);
 774                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 775         }
 776         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 777         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 778         if (phba->sli_rev < LPFC_SLI_REV4)
 779                 lpfc_set_loopback_flag(phba);
 780         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 781         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 782                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 783                                 "0498 Adapter failed to init, mbxCmd x%x "
 784                                 "INIT_LINK, mbxStatus x%x\n",
 785                                 mb->mbxCommand, mb->mbxStatus);
 786                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 787                         /* Clear all interrupt enable conditions */
 788                         writel(0, phba->HCregaddr);
 789                         readl(phba->HCregaddr); /* flush */
 790                         /* Clear all pending interrupts */
 791                         writel(0xffffffff, phba->HAregaddr);
 792                         readl(phba->HAregaddr); /* flush */
 793                 }
 794                 phba->link_state = LPFC_HBA_ERROR;
 795                 if (rc != MBX_BUSY || flag == MBX_POLL)
 796                         mempool_free(pmb, phba->mbox_mem_pool);
 797                 return -EIO;
 798         }
 799         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 800         if (flag == MBX_POLL)
 801                 mempool_free(pmb, phba->mbox_mem_pool);
 802
 803         return 0;
 804 }
 805
 806 /**
 807  * lpfc_hba_down_link - this routine downs the FC link
 808  * @phba: pointer to lpfc hba data structure.
 809  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 810  *
 811  * This routine will issue the DOWN_LINK mailbox command call.
 812  * It is available to other drivers through the lpfc_hba data
 813  * structure for use to stop the link.
 814  *
 815  * Return code
 816  *              0 - success
 817  *              Any other value - error
 818  **/
 819 static int
 820 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 821 {
 822         LPFC_MBOXQ_t *pmb;
 823         int rc;
 824
 825         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 826         if (!pmb) {
 827                 phba->link_state = LPFC_HBA_ERROR;
 828                 return -ENOMEM;
 829         }
 830
 831         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 832                         "0491 Adapter Link is disabled.\n");
 833         lpfc_down_link(phba, pmb);
 834         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 835         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 836         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 837                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 838                                 "2522 Adapter failed to issue DOWN_LINK"
 839                                 " mbox command rc 0x%x\n", rc);
 840
 841                 mempool_free(pmb, phba->mbox_mem_pool);
 842                 return -EIO;
 843         }
 844         if (flag == MBX_POLL)
 845                 mempool_free(pmb, phba->mbox_mem_pool);
 846
 847         return 0;
 848 }
 849
 850 /**
 851  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 852  * @phba: pointer to lpfc HBA data structure.
 853  *
 854  * This routine will do LPFC uninitialization before the HBA is reset when
 855  * bringing down the SLI Layer.
 856  *
 857  * Return codes
 858  *   0 - success.
 859  *   Any other value - error.
 860  **/
 861 int
 862 lpfc_hba_down_prep(struct lpfc_hba *phba)
 863 {
 864         struct lpfc_vport **vports;
 865         int i;
 866
 867         if (phba->sli_rev <= LPFC_SLI_REV3) {
 868                 /* Disable interrupts */
 869                 writel(0, phba->HCregaddr);
 870                 readl(phba->HCregaddr); /* flush */
 871         }
 872
 873         if (phba->pport->load_flag & FC_UNLOADING)
 874                 lpfc_cleanup_discovery_resources(phba->pport);
 875         else {
 876                 vports = lpfc_create_vport_work_array(phba);
 877                 if (vports != NULL)
 878                         for (i = 0; i <= phba->max_vports &&
 879                                 vports[i] != NULL; i++)
 880                                 lpfc_cleanup_discovery_resources(vports[i]);
 881                 lpfc_destroy_vport_work_array(phba, vports);
 882         }
 883         return 0;
 884 }
 885
 886 /**
 887  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 888  * rspiocb which got deferred
 889  *
 890  * @phba: pointer to lpfc HBA data structure.
 891  *
 892  * This routine will cleanup completed slow path events after HBA is reset
 893  * when bringing down the SLI Layer.
 894  *
 895  *
 896  * Return codes
 897  *   void.
 898  **/
 899 static void
 900 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 901 {
 902         struct lpfc_iocbq *rspiocbq;
 903         struct hbq_dmabuf *dmabuf;
 904         struct lpfc_cq_event *cq_event;
 905
 906         spin_lock_irq(&phba->hbalock);
 907         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 908         spin_unlock_irq(&phba->hbalock);
 909
 910         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 911                 /* Get the response iocb from the head of work queue */
 912                 spin_lock_irq(&phba->hbalock);
 913                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 914                                  cq_event, struct lpfc_cq_event, list);
 915                 spin_unlock_irq(&phba->hbalock);
 916
 917                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 918                 case CQE_CODE_COMPL_WQE:
 919                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 920                                                  cq_event);
 921                         lpfc_sli_release_iocbq(phba, rspiocbq);
 922                         break;
 923                 case CQE_CODE_RECEIVE:
 924                 case CQE_CODE_RECEIVE_V1:
 925                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 926                                               cq_event);
 927                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 928                 }
 929         }
 930 }
 931
 932 /**
 933  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 934  * @phba: pointer to lpfc HBA data structure.
 935  *
 936  * This routine will cleanup posted ELS buffers after the HBA is reset
 937  * when bringing down the SLI Layer.
 938  *
 939  *
 940  * Return codes
 941  *   void.
 942  **/
 943 static void
 944 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 945 {
 946         struct lpfc_sli *psli = &phba->sli;
 947         struct lpfc_sli_ring *pring;
 948         struct lpfc_dmabuf *mp, *next_mp;
 949         LIST_HEAD(buflist);
 950         int count;
 951
 952         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 953                 lpfc_sli_hbqbuf_free_all(phba);
 954         else {
 955                 /* Cleanup preposted buffers on the ELS ring */
 956                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 957                 spin_lock_irq(&phba->hbalock);
 958                 list_splice_init(&pring->postbufq, &buflist);
 959                 spin_unlock_irq(&phba->hbalock);
 960
 961                 count = 0;
 962                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 963                         list_del(&mp->list);
 964                         count++;
 965                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 966                         kfree(mp);
 967                 }
 968
 969                 spin_lock_irq(&phba->hbalock);
 970                 pring->postbufq_cnt -= count;
 971                 spin_unlock_irq(&phba->hbalock);
 972         }
 973 }
 974
 975 /**
 976  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 977  * @phba: pointer to lpfc HBA data structure.
 978  *
 979  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 980  * down the SLI Layer.
 981  *
 982  * Return codes
 983  *   void
 984  **/
 985 static void
 986 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 987 {
 988         struct lpfc_sli *psli = &phba->sli;
 989         struct lpfc_queue *qp = NULL;
 990         struct lpfc_sli_ring *pring;
 991         LIST_HEAD(completions);
 992         int i;
 993         struct lpfc_iocbq *piocb, *next_iocb;
 994
 995         if (phba->sli_rev != LPFC_SLI_REV4) {
 996                 for (i = 0; i < psli->num_rings; i++) {
 997                         pring = &psli->sli3_ring[i];
 998                         spin_lock_irq(&phba->hbalock);
 999                         /* At this point in time the HBA is either reset or DOA
1000                          * Nothing should be on txcmplq as it will
1001                          * NEVER complete.
1002                          */
1003                         list_splice_init(&pring->txcmplq, &completions);
1004                         pring->txcmplq_cnt = 0;
1005                         spin_unlock_irq(&phba->hbalock);
1006
1007                         lpfc_sli_abort_iocb_ring(phba, pring);
1008                 }
1009                 /* Cancel all the IOCBs from the completions list */
1010                 lpfc_sli_cancel_iocbs(phba, &completions,
1011                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1012                 return;
1013         }
1014         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1015                 pring = qp->pring;
1016                 if (!pring)
1017                         continue;
1018                 spin_lock_irq(&pring->ring_lock);
1019                 list_for_each_entry_safe(piocb, next_iocb,
1020                                          &pring->txcmplq, list)
1021                         piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
1022                 list_splice_init(&pring->txcmplq, &completions);
1023                 pring->txcmplq_cnt = 0;
1024                 spin_unlock_irq(&pring->ring_lock);
1025                 lpfc_sli_abort_iocb_ring(phba, pring);
1026         }
1027         /* Cancel all the IOCBs from the completions list */
1028         lpfc_sli_cancel_iocbs(phba, &completions,
1029                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1030 }
1031
1032 /**
1033  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1034  * @phba: pointer to lpfc HBA data structure.
1035  *
1036  * This routine will do uninitialization after the HBA is reset when bring
1037  * down the SLI Layer.
1038  *
1039  * Return codes
1040  *   0 - success.
1041  *   Any other value - error.
1042  **/
1043 static int
1044 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1045 {
1046         lpfc_hba_free_post_buf(phba);
1047         lpfc_hba_clean_txcmplq(phba);
1048         return 0;
1049 }
1050
1051 /**
1052  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1053  * @phba: pointer to lpfc HBA data structure.
1054  *
1055  * This routine will do uninitialization after the HBA is reset when bring
1056  * down the SLI Layer.
1057  *
1058  * Return codes
1059  *   0 - success.
1060  *   Any other value - error.
1061  **/
1062 static int
1063 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1064 {
1065         struct lpfc_io_buf *psb, *psb_next;
1066         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1067         struct lpfc_sli4_hdw_queue *qp;
1068         LIST_HEAD(aborts);
1069         LIST_HEAD(nvme_aborts);
1070         LIST_HEAD(nvmet_aborts);
1071         struct lpfc_sglq *sglq_entry = NULL;
1072         int cnt, idx;
1073
1074
1075         lpfc_sli_hbqbuf_free_all(phba);
1076         lpfc_hba_clean_txcmplq(phba);
1077
1078         /* At this point in time the HBA is either reset or DOA. Either
1079          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1080          * on the lpfc_els_sgl_list so that it can either be freed if the
1081          * driver is unloading or reposted if the driver is restarting
1082          * the port.
1083          */
1084
1085         /* sgl_list_lock required because worker thread uses this
1086          * list.
1087          */
1088         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1089         list_for_each_entry(sglq_entry,
1090                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1091                 sglq_entry->state = SGL_FREED;
1092
1093         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1094                         &phba->sli4_hba.lpfc_els_sgl_list);
1095
1096
1097         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1098
1099         /* abts_xxxx_buf_list_lock required because worker thread uses this
1100          * list.
1101          */
1102         spin_lock_irq(&phba->hbalock);
1103         cnt = 0;
1104         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1105                 qp = &phba->sli4_hba.hdwq[idx];
1106
1107                 spin_lock(&qp->abts_io_buf_list_lock);
1108                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1109                                  &aborts);
1110
1111                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1112                         psb->pCmd = NULL;
1113                         psb->status = IOSTAT_SUCCESS;
1114                         cnt++;
1115                 }
1116                 spin_lock(&qp->io_buf_list_put_lock);
1117                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1118                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1119                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1120                 qp->abts_scsi_io_bufs = 0;
1121                 qp->abts_nvme_io_bufs = 0;
1122                 spin_unlock(&qp->io_buf_list_put_lock);
1123                 spin_unlock(&qp->abts_io_buf_list_lock);
1124         }
1125         spin_unlock_irq(&phba->hbalock);
1126
1127         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1128                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1129                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1130                                  &nvmet_aborts);
1131                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1132                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1133                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1134                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1135                 }
1136         }
1137
1138         lpfc_sli4_free_sp_events(phba);
1139         return cnt;
1140 }
1141
1142 /**
1143  * lpfc_hba_down_post - Wrapper func for hba down post routine
1144  * @phba: pointer to lpfc HBA data structure.
1145  *
1146  * This routine wraps the actual SLI3 or SLI4 routine for performing
1147  * uninitialization after the HBA is reset when bring down the SLI Layer.
1148  *
1149  * Return codes
1150  *   0 - success.
1151  *   Any other value - error.
1152  **/
1153 int
1154 lpfc_hba_down_post(struct lpfc_hba *phba)
1155 {
1156         return (*phba->lpfc_hba_down_post)(phba);
1157 }
1158
1159 /**
1160  * lpfc_hb_timeout - The HBA-timer timeout handler
1161  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1162  *
1163  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1164  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1165  * work-port-events bitmap and the worker thread is notified. This timeout
1166  * event will be used by the worker thread to invoke the actual timeout
1167  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1168  * be performed in the timeout handler and the HBA timeout event bit shall
1169  * be cleared by the worker thread after it has taken the event bitmap out.
1170  **/
1171 static void
1172 lpfc_hb_timeout(struct timer_list *t)
1173 {
1174         struct lpfc_hba *phba;
1175         uint32_t tmo_posted;
1176         unsigned long iflag;
1177
1178         phba = from_timer(phba, t, hb_tmofunc);
1179
1180         /* Check for heart beat timeout conditions */
1181         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1182         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1183         if (!tmo_posted)
1184                 phba->pport->work_port_events |= WORKER_HB_TMO;
1185         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1186
1187         /* Tell the worker thread there is work to do */
1188         if (!tmo_posted)
1189                 lpfc_worker_wake_up(phba);
1190         return;
1191 }
1192
1193 /**
1194  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1195  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1196  *
1197  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1198  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1199  * work-port-events bitmap and the worker thread is notified. This timeout
1200  * event will be used by the worker thread to invoke the actual timeout
1201  * handler routine, lpfc_rrq_handler. Any periodical operations will
1202  * be performed in the timeout handler and the RRQ timeout event bit shall
1203  * be cleared by the worker thread after it has taken the event bitmap out.
1204  **/
1205 static void
1206 lpfc_rrq_timeout(struct timer_list *t)
1207 {
1208         struct lpfc_hba *phba;
1209         unsigned long iflag;
1210
1211         phba = from_timer(phba, t, rrq_tmr);
1212         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1213         if (!(phba->pport->load_flag & FC_UNLOADING))
1214                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1215         else
1216                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1217         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1218
1219         if (!(phba->pport->load_flag & FC_UNLOADING))
1220                 lpfc_worker_wake_up(phba);
1221 }
1222
1223 /**
1224  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1225  * @phba: pointer to lpfc hba data structure.
1226  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1227  *
1228  * This is the callback function to the lpfc heart-beat mailbox command.
1229  * If configured, the lpfc driver issues the heart-beat mailbox command to
1230  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1231  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1232  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1233  * heart-beat outstanding state. Once the mailbox command comes back and
1234  * no error conditions detected, the heart-beat mailbox command timer is
1235  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1236  * state is cleared for the next heart-beat. If the timer expired with the
1237  * heart-beat outstanding state set, the driver will put the HBA offline.
1238  **/
1239 static void
1240 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1241 {
1242         unsigned long drvr_flag;
1243
1244         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1245         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1246         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1247
1248         /* Check and reset heart-beat timer if necessary */
1249         mempool_free(pmboxq, phba->mbox_mem_pool);
1250         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1251                 !(phba->link_state == LPFC_HBA_ERROR) &&
1252                 !(phba->pport->load_flag & FC_UNLOADING))
1253                 mod_timer(&phba->hb_tmofunc,
1254                           jiffies +
1255                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1256         return;
1257 }
1258
1259 /*
1260  * lpfc_idle_stat_delay_work - idle_stat tracking
1261  *
1262  * This routine tracks per-cq idle_stat and determines polling decisions.
1263  *
1264  * Return codes:
1265  *   None
1266  **/
1267 static void
1268 lpfc_idle_stat_delay_work(struct work_struct *work)
1269 {
1270         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1271                                              struct lpfc_hba,
1272                                              idle_stat_delay_work);
1273         struct lpfc_queue *cq;
1274         struct lpfc_sli4_hdw_queue *hdwq;
1275         struct lpfc_idle_stat *idle_stat;
1276         u32 i, idle_percent;
1277         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1278
1279         if (phba->pport->load_flag & FC_UNLOADING)
1280                 return;
1281
1282         if (phba->link_state == LPFC_HBA_ERROR ||
1283             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1284             phba->cmf_active_mode != LPFC_CFG_OFF)
1285                 goto requeue;
1286
1287         for_each_present_cpu(i) {
1288                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1289                 cq = hdwq->io_cq;
1290
1291                 /* Skip if we've already handled this cq's primary CPU */
1292                 if (cq->chann != i)
1293                         continue;
1294
1295                 idle_stat = &phba->sli4_hba.idle_stat[i];
1296
1297                 /* get_cpu_idle_time returns values as running counters. Thus,
1298                  * to know the amount for this period, the prior counter values
1299                  * need to be subtracted from the current counter values.
1300                  * From there, the idle time stat can be calculated as a
1301                  * percentage of 100 - the sum of the other consumption times.
1302                  */
1303                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1304                 diff_idle = wall_idle - idle_stat->prev_idle;
1305                 diff_wall = wall - idle_stat->prev_wall;
1306
1307                 if (diff_wall <= diff_idle)
1308                         busy_time = 0;
1309                 else
1310                         busy_time = diff_wall - diff_idle;
1311
1312                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1313                 idle_percent = 100 - idle_percent;
1314
1315                 if (idle_percent < 15)
1316                         cq->poll_mode = LPFC_QUEUE_WORK;
1317                 else
1318                         cq->poll_mode = LPFC_IRQ_POLL;
1319
1320                 idle_stat->prev_idle = wall_idle;
1321                 idle_stat->prev_wall = wall;
1322         }
1323
1324 requeue:
1325         schedule_delayed_work(&phba->idle_stat_delay_work,
1326                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1327 }
1328
1329 static void
1330 lpfc_hb_eq_delay_work(struct work_struct *work)
1331 {
1332         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1333                                              struct lpfc_hba, eq_delay_work);
1334         struct lpfc_eq_intr_info *eqi, *eqi_new;
1335         struct lpfc_queue *eq, *eq_next;
1336         unsigned char *ena_delay = NULL;
1337         uint32_t usdelay;
1338         int i;
1339
1340         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1341                 return;
1342
1343         if (phba->link_state == LPFC_HBA_ERROR ||
1344             phba->pport->fc_flag & FC_OFFLINE_MODE)
1345                 goto requeue;
1346
1347         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1348                             GFP_KERNEL);
1349         if (!ena_delay)
1350                 goto requeue;
1351
1352         for (i = 0; i < phba->cfg_irq_chann; i++) {
1353                 /* Get the EQ corresponding to the IRQ vector */
1354                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1355                 if (!eq)
1356                         continue;
1357                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1358                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1359                         ena_delay[eq->last_cpu] = 1;
1360                 }
1361         }
1362
1363         for_each_present_cpu(i) {
1364                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1365                 if (ena_delay[i]) {
1366                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1367                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1368                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1369                 } else {
1370                         usdelay = 0;
1371                 }
1372
1373                 eqi->icnt = 0;
1374
1375                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1376                         if (unlikely(eq->last_cpu != i)) {
1377                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1378                                                       eq->last_cpu);
1379                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1380                                 continue;
1381                         }
1382                         if (usdelay != eq->q_mode)
1383                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1384                                                          usdelay);
1385                 }
1386         }
1387
1388         kfree(ena_delay);
1389
1390 requeue:
1391         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1392                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1393 }
1394
1395 /**
1396  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1397  * @phba: pointer to lpfc hba data structure.
1398  *
1399  * For each heartbeat, this routine does some heuristic methods to adjust
1400  * XRI distribution. The goal is to fully utilize free XRIs.
1401  **/
1402 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1403 {
1404         u32 i;
1405         u32 hwq_count;
1406
1407         hwq_count = phba->cfg_hdw_queue;
1408         for (i = 0; i < hwq_count; i++) {
1409                 /* Adjust XRIs in private pool */
1410                 lpfc_adjust_pvt_pool_count(phba, i);
1411
1412                 /* Adjust high watermark */
1413                 lpfc_adjust_high_watermark(phba, i);
1414
1415 #ifdef LPFC_MXP_STAT
1416                 /* Snapshot pbl, pvt and busy count */
1417                 lpfc_snapshot_mxp(phba, i);
1418 #endif
1419         }
1420 }
1421
1422 /**
1423  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1424  * @phba: pointer to lpfc hba data structure.
1425  *
1426  * If a HB mbox is not already in progrees, this routine will allocate
1427  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1428  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1429  **/
1430 int
1431 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1432 {
1433         LPFC_MBOXQ_t *pmboxq;
1434         int retval;
1435
1436         /* Is a Heartbeat mbox already in progress */
1437         if (phba->hba_flag & HBA_HBEAT_INP)
1438                 return 0;
1439
1440         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1441         if (!pmboxq)
1442                 return -ENOMEM;
1443
1444         lpfc_heart_beat(phba, pmboxq);
1445         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1446         pmboxq->vport = phba->pport;
1447         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1448
1449         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1450                 mempool_free(pmboxq, phba->mbox_mem_pool);
1451                 return -ENXIO;
1452         }
1453         phba->hba_flag |= HBA_HBEAT_INP;
1454
1455         return 0;
1456 }
1457
1458 /**
1459  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1460  * @phba: pointer to lpfc hba data structure.
1461  *
1462  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1463  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1464  * of the value of lpfc_enable_hba_heartbeat.
1465  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1466  * try to issue a MBX_HEARTBEAT mbox command.
1467  **/
1468 void
1469 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1470 {
1471         if (phba->cfg_enable_hba_heartbeat)
1472                 return;
1473         phba->hba_flag |= HBA_HBEAT_TMO;
1474 }
1475
1476 /**
1477  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1478  * @phba: pointer to lpfc hba data structure.
1479  *
1480  * This is the actual HBA-timer timeout handler to be invoked by the worker
1481  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1482  * handler performs any periodic operations needed for the device. If such
1483  * periodic event has already been attended to either in the interrupt handler
1484  * or by processing slow-ring or fast-ring events within the HBA-timer
1485  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1486  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1487  * is configured and there is no heart-beat mailbox command outstanding, a
1488  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1489  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1490  * to offline.
1491  **/
1492 void
1493 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1494 {
1495         struct lpfc_vport **vports;
1496         struct lpfc_dmabuf *buf_ptr;
1497         int retval = 0;
1498         int i, tmo;
1499         struct lpfc_sli *psli = &phba->sli;
1500         LIST_HEAD(completions);
1501
1502         if (phba->cfg_xri_rebalancing) {
1503                 /* Multi-XRI pools handler */
1504                 lpfc_hb_mxp_handler(phba);
1505         }
1506
1507         vports = lpfc_create_vport_work_array(phba);
1508         if (vports != NULL)
1509                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1510                         lpfc_rcv_seq_check_edtov(vports[i]);
1511                         lpfc_fdmi_change_check(vports[i]);
1512                 }
1513         lpfc_destroy_vport_work_array(phba, vports);
1514
1515         if ((phba->link_state == LPFC_HBA_ERROR) ||
1516                 (phba->pport->load_flag & FC_UNLOADING) ||
1517                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1518                 return;
1519
1520         if (phba->elsbuf_cnt &&
1521                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1522                 spin_lock_irq(&phba->hbalock);
1523                 list_splice_init(&phba->elsbuf, &completions);
1524                 phba->elsbuf_cnt = 0;
1525                 phba->elsbuf_prev_cnt = 0;
1526                 spin_unlock_irq(&phba->hbalock);
1527
1528                 while (!list_empty(&completions)) {
1529                         list_remove_head(&completions, buf_ptr,
1530                                 struct lpfc_dmabuf, list);
1531                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1532                         kfree(buf_ptr);
1533                 }
1534         }
1535         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1536
1537         /* If there is no heart beat outstanding, issue a heartbeat command */
1538         if (phba->cfg_enable_hba_heartbeat) {
1539                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1540                 spin_lock_irq(&phba->pport->work_port_lock);
1541                 if (time_after(phba->last_completion_time +
1542                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1543                                 jiffies)) {
1544                         spin_unlock_irq(&phba->pport->work_port_lock);
1545                         if (phba->hba_flag & HBA_HBEAT_INP)
1546                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1547                         else
1548                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1549                         goto out;
1550                 }
1551                 spin_unlock_irq(&phba->pport->work_port_lock);
1552
1553                 /* Check if a MBX_HEARTBEAT is already in progress */
1554                 if (phba->hba_flag & HBA_HBEAT_INP) {
1555                         /*
1556                          * If heart beat timeout called with HBA_HBEAT_INP set
1557                          * we need to give the hb mailbox cmd a chance to
1558                          * complete or TMO.
1559                          */
1560                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1561                                 "0459 Adapter heartbeat still outstanding: "
1562                                 "last compl time was %d ms.\n",
1563                                 jiffies_to_msecs(jiffies
1564                                          - phba->last_completion_time));
1565                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1566                 } else {
1567                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1568                                 (list_empty(&psli->mboxq))) {
1569
1570                                 retval = lpfc_issue_hb_mbox(phba);
1571                                 if (retval) {
1572                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1573                                         goto out;
1574                                 }
1575                                 phba->skipped_hb = 0;
1576                         } else if (time_before_eq(phba->last_completion_time,
1577                                         phba->skipped_hb)) {
1578                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1579                                         "2857 Last completion time not "
1580                                         " updated in %d ms\n",
1581                                         jiffies_to_msecs(jiffies
1582                                                  - phba->last_completion_time));
1583                         } else
1584                                 phba->skipped_hb = jiffies;
1585
1586                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1587                         goto out;
1588                 }
1589         } else {
1590                 /* Check to see if we want to force a MBX_HEARTBEAT */
1591                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1592                         retval = lpfc_issue_hb_mbox(phba);
1593                         if (retval)
1594                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1595                         else
1596                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1597                         goto out;
1598                 }
1599                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1600         }
1601 out:
1602         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1603 }
1604
1605 /**
1606  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1607  * @phba: pointer to lpfc hba data structure.
1608  *
1609  * This routine is called to bring the HBA offline when HBA hardware error
1610  * other than Port Error 6 has been detected.
1611  **/
1612 static void
1613 lpfc_offline_eratt(struct lpfc_hba *phba)
1614 {
1615         struct lpfc_sli   *psli = &phba->sli;
1616
1617         spin_lock_irq(&phba->hbalock);
1618         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1619         spin_unlock_irq(&phba->hbalock);
1620         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1621
1622         lpfc_offline(phba);
1623         lpfc_reset_barrier(phba);
1624         spin_lock_irq(&phba->hbalock);
1625         lpfc_sli_brdreset(phba);
1626         spin_unlock_irq(&phba->hbalock);
1627         lpfc_hba_down_post(phba);
1628         lpfc_sli_brdready(phba, HS_MBRDY);
1629         lpfc_unblock_mgmt_io(phba);
1630         phba->link_state = LPFC_HBA_ERROR;
1631         return;
1632 }
1633
1634 /**
1635  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1636  * @phba: pointer to lpfc hba data structure.
1637  *
1638  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1639  * other than Port Error 6 has been detected.
1640  **/
1641 void
1642 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1643 {
1644         spin_lock_irq(&phba->hbalock);
1645         if (phba->link_state == LPFC_HBA_ERROR &&
1646                 test_bit(HBA_PCI_ERR, &phba->bit_flags)) {
1647                 spin_unlock_irq(&phba->hbalock);
1648                 return;
1649         }
1650         phba->link_state = LPFC_HBA_ERROR;
1651         spin_unlock_irq(&phba->hbalock);
1652
1653         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1654         lpfc_sli_flush_io_rings(phba);
1655         lpfc_offline(phba);
1656         lpfc_hba_down_post(phba);
1657         lpfc_unblock_mgmt_io(phba);
1658 }
1659
1660 /**
1661  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1662  * @phba: pointer to lpfc hba data structure.
1663  *
1664  * This routine is invoked to handle the deferred HBA hardware error
1665  * conditions. This type of error is indicated by HBA by setting ER1
1666  * and another ER bit in the host status register. The driver will
1667  * wait until the ER1 bit clears before handling the error condition.
1668  **/
1669 static void
1670 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1671 {
1672         uint32_t old_host_status = phba->work_hs;
1673         struct lpfc_sli *psli = &phba->sli;
1674
1675         /* If the pci channel is offline, ignore possible errors,
1676          * since we cannot communicate with the pci card anyway.
1677          */
1678         if (pci_channel_offline(phba->pcidev)) {
1679                 spin_lock_irq(&phba->hbalock);
1680                 phba->hba_flag &= ~DEFER_ERATT;
1681                 spin_unlock_irq(&phba->hbalock);
1682                 return;
1683         }
1684
1685         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1686                         "0479 Deferred Adapter Hardware Error "
1687                         "Data: x%x x%x x%x\n",
1688                         phba->work_hs, phba->work_status[0],
1689                         phba->work_status[1]);
1690
1691         spin_lock_irq(&phba->hbalock);
1692         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1693         spin_unlock_irq(&phba->hbalock);
1694
1695
1696         /*
1697          * Firmware stops when it triggred erratt. That could cause the I/Os
1698          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1699          * SCSI layer retry it after re-establishing link.
1700          */
1701         lpfc_sli_abort_fcp_rings(phba);
1702
1703         /*
1704          * There was a firmware error. Take the hba offline and then
1705          * attempt to restart it.
1706          */
1707         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1708         lpfc_offline(phba);
1709
1710         /* Wait for the ER1 bit to clear.*/
1711         while (phba->work_hs & HS_FFER1) {
1712                 msleep(100);
1713                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1714                         phba->work_hs = UNPLUG_ERR ;
1715                         break;
1716                 }
1717                 /* If driver is unloading let the worker thread continue */
1718                 if (phba->pport->load_flag & FC_UNLOADING) {
1719                         phba->work_hs = 0;
1720                         break;
1721                 }
1722         }
1723
1724         /*
1725          * This is to ptrotect against a race condition in which
1726          * first write to the host attention register clear the
1727          * host status register.
1728          */
1729         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1730                 phba->work_hs = old_host_status & ~HS_FFER1;
1731
1732         spin_lock_irq(&phba->hbalock);
1733         phba->hba_flag &= ~DEFER_ERATT;
1734         spin_unlock_irq(&phba->hbalock);
1735         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1736         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1737 }
1738
1739 static void
1740 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1741 {
1742         struct lpfc_board_event_header board_event;
1743         struct Scsi_Host *shost;
1744
1745         board_event.event_type = FC_REG_BOARD_EVENT;
1746         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1747         shost = lpfc_shost_from_vport(phba->pport);
1748         fc_host_post_vendor_event(shost, fc_get_event_number(),
1749                                   sizeof(board_event),
1750                                   (char *) &board_event,
1751                                   LPFC_NL_VENDOR_ID);
1752 }
1753
1754 /**
1755  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1756  * @phba: pointer to lpfc hba data structure.
1757  *
1758  * This routine is invoked to handle the following HBA hardware error
1759  * conditions:
1760  * 1 - HBA error attention interrupt
1761  * 2 - DMA ring index out of range
1762  * 3 - Mailbox command came back as unknown
1763  **/
1764 static void
1765 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1766 {
1767         struct lpfc_vport *vport = phba->pport;
1768         struct lpfc_sli   *psli = &phba->sli;
1769         uint32_t event_data;
1770         unsigned long temperature;
1771         struct temp_event temp_event_data;
1772         struct Scsi_Host  *shost;
1773
1774         /* If the pci channel is offline, ignore possible errors,
1775          * since we cannot communicate with the pci card anyway.
1776          */
1777         if (pci_channel_offline(phba->pcidev)) {
1778                 spin_lock_irq(&phba->hbalock);
1779                 phba->hba_flag &= ~DEFER_ERATT;
1780                 spin_unlock_irq(&phba->hbalock);
1781                 return;
1782         }
1783
1784         /* If resets are disabled then leave the HBA alone and return */
1785         if (!phba->cfg_enable_hba_reset)
1786                 return;
1787
1788         /* Send an internal error event to mgmt application */
1789         lpfc_board_errevt_to_mgmt(phba);
1790
1791         if (phba->hba_flag & DEFER_ERATT)
1792                 lpfc_handle_deferred_eratt(phba);
1793
1794         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1795                 if (phba->work_hs & HS_FFER6)
1796                         /* Re-establishing Link */
1797                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1798                                         "1301 Re-establishing Link "
1799                                         "Data: x%x x%x x%x\n",
1800                                         phba->work_hs, phba->work_status[0],
1801                                         phba->work_status[1]);
1802                 if (phba->work_hs & HS_FFER8)
1803                         /* Device Zeroization */
1804                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1805                                         "2861 Host Authentication device "
1806                                         "zeroization Data:x%x x%x x%x\n",
1807                                         phba->work_hs, phba->work_status[0],
1808                                         phba->work_status[1]);
1809
1810                 spin_lock_irq(&phba->hbalock);
1811                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1812                 spin_unlock_irq(&phba->hbalock);
1813
1814                 /*
1815                 * Firmware stops when it triggled erratt with HS_FFER6.
1816                 * That could cause the I/Os dropped by the firmware.
1817                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1818                 * retry it after re-establishing link.
1819                 */
1820                 lpfc_sli_abort_fcp_rings(phba);
1821
1822                 /*
1823                  * There was a firmware error.  Take the hba offline and then
1824                  * attempt to restart it.
1825                  */
1826                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1827                 lpfc_offline(phba);
1828                 lpfc_sli_brdrestart(phba);
1829                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1830                         lpfc_unblock_mgmt_io(phba);
1831                         return;
1832                 }
1833                 lpfc_unblock_mgmt_io(phba);
1834         } else if (phba->work_hs & HS_CRIT_TEMP) {
1835                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1836                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1837                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1838                 temp_event_data.data = (uint32_t)temperature;
1839
1840                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1841                                 "0406 Adapter maximum temperature exceeded "
1842                                 "(%ld), taking this port offline "
1843                                 "Data: x%x x%x x%x\n",
1844                                 temperature, phba->work_hs,
1845                                 phba->work_status[0], phba->work_status[1]);
1846
1847                 shost = lpfc_shost_from_vport(phba->pport);
1848                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1849                                           sizeof(temp_event_data),
1850                                           (char *) &temp_event_data,
1851                                           SCSI_NL_VID_TYPE_PCI
1852                                           | PCI_VENDOR_ID_EMULEX);
1853
1854                 spin_lock_irq(&phba->hbalock);
1855                 phba->over_temp_state = HBA_OVER_TEMP;
1856                 spin_unlock_irq(&phba->hbalock);
1857                 lpfc_offline_eratt(phba);
1858
1859         } else {
1860                 /* The if clause above forces this code path when the status
1861                  * failure is a value other than FFER6. Do not call the offline
1862                  * twice. This is the adapter hardware error path.
1863                  */
1864                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1865                                 "0457 Adapter Hardware Error "
1866                                 "Data: x%x x%x x%x\n",
1867                                 phba->work_hs,
1868                                 phba->work_status[0], phba->work_status[1]);
1869
1870                 event_data = FC_REG_DUMP_EVENT;
1871                 shost = lpfc_shost_from_vport(vport);
1872                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1873                                 sizeof(event_data), (char *) &event_data,
1874                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1875
1876                 lpfc_offline_eratt(phba);
1877         }
1878         return;
1879 }
1880
1881 /**
1882  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1883  * @phba: pointer to lpfc hba data structure.
1884  * @mbx_action: flag for mailbox shutdown action.
1885  * @en_rn_msg: send reset/port recovery message.
1886  * This routine is invoked to perform an SLI4 port PCI function reset in
1887  * response to port status register polling attention. It waits for port
1888  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1889  * During this process, interrupt vectors are freed and later requested
1890  * for handling possible port resource change.
1891  **/
1892 static int
1893 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1894                             bool en_rn_msg)
1895 {
1896         int rc;
1897         uint32_t intr_mode;
1898         LPFC_MBOXQ_t *mboxq;
1899
1900         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1901             LPFC_SLI_INTF_IF_TYPE_2) {
1902                 /*
1903                  * On error status condition, driver need to wait for port
1904                  * ready before performing reset.
1905                  */
1906                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1907                 if (rc)
1908                         return rc;
1909         }
1910
1911         /* need reset: attempt for port recovery */
1912         if (en_rn_msg)
1913                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1914                                 "2887 Reset Needed: Attempting Port "
1915                                 "Recovery...\n");
1916
1917         /* If we are no wait, the HBA has been reset and is not
1918          * functional, thus we should clear
1919          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1920          */
1921         if (mbx_action == LPFC_MBX_NO_WAIT) {
1922                 spin_lock_irq(&phba->hbalock);
1923                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1924                 if (phba->sli.mbox_active) {
1925                         mboxq = phba->sli.mbox_active;
1926                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1927                         __lpfc_mbox_cmpl_put(phba, mboxq);
1928                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1929                         phba->sli.mbox_active = NULL;
1930                 }
1931                 spin_unlock_irq(&phba->hbalock);
1932         }
1933
1934         lpfc_offline_prep(phba, mbx_action);
1935         lpfc_sli_flush_io_rings(phba);
1936         lpfc_offline(phba);
1937         /* release interrupt for possible resource change */
1938         lpfc_sli4_disable_intr(phba);
1939         rc = lpfc_sli_brdrestart(phba);
1940         if (rc) {
1941                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1942                                 "6309 Failed to restart board\n");
1943                 return rc;
1944         }
1945         /* request and enable interrupt */
1946         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1947         if (intr_mode == LPFC_INTR_ERROR) {
1948                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1949                                 "3175 Failed to enable interrupt\n");
1950                 return -EIO;
1951         }
1952         phba->intr_mode = intr_mode;
1953         rc = lpfc_online(phba);
1954         if (rc == 0)
1955                 lpfc_unblock_mgmt_io(phba);
1956
1957         return rc;
1958 }
1959
1960 /**
1961  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1962  * @phba: pointer to lpfc hba data structure.
1963  *
1964  * This routine is invoked to handle the SLI4 HBA hardware error attention
1965  * conditions.
1966  **/
1967 static void
1968 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1969 {
1970         struct lpfc_vport *vport = phba->pport;
1971         uint32_t event_data;
1972         struct Scsi_Host *shost;
1973         uint32_t if_type;
1974         struct lpfc_register portstat_reg = {0};
1975         uint32_t reg_err1, reg_err2;
1976         uint32_t uerrlo_reg, uemasklo_reg;
1977         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1978         bool en_rn_msg = true;
1979         struct temp_event temp_event_data;
1980         struct lpfc_register portsmphr_reg;
1981         int rc, i;
1982
1983         /* If the pci channel is offline, ignore possible errors, since
1984          * we cannot communicate with the pci card anyway.
1985          */
1986         if (pci_channel_offline(phba->pcidev)) {
1987                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1988                                 "3166 pci channel is offline\n");
1989                 lpfc_sli_flush_io_rings(phba);
1990                 return;
1991         }
1992
1993         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1994         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1995         switch (if_type) {
1996         case LPFC_SLI_INTF_IF_TYPE_0:
1997                 pci_rd_rc1 = lpfc_readl(
1998                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1999                                 &uerrlo_reg);
2000                 pci_rd_rc2 = lpfc_readl(
2001                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2002                                 &uemasklo_reg);
2003                 /* consider PCI bus read error as pci_channel_offline */
2004                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2005                         return;
2006                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
2007                         lpfc_sli4_offline_eratt(phba);
2008                         return;
2009                 }
2010                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2011                                 "7623 Checking UE recoverable");
2012
2013                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2014                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2015                                        &portsmphr_reg.word0))
2016                                 continue;
2017
2018                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2019                                                    &portsmphr_reg);
2020                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2021                             LPFC_PORT_SEM_UE_RECOVERABLE)
2022                                 break;
2023                         /*Sleep for 1Sec, before checking SEMAPHORE */
2024                         msleep(1000);
2025                 }
2026
2027                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2028                                 "4827 smphr_port_status x%x : Waited %dSec",
2029                                 smphr_port_status, i);
2030
2031                 /* Recoverable UE, reset the HBA device */
2032                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2033                     LPFC_PORT_SEM_UE_RECOVERABLE) {
2034                         for (i = 0; i < 20; i++) {
2035                                 msleep(1000);
2036                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2037                                     &portsmphr_reg.word0) &&
2038                                     (LPFC_POST_STAGE_PORT_READY ==
2039                                      bf_get(lpfc_port_smphr_port_status,
2040                                      &portsmphr_reg))) {
2041                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2042                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2043                                         if (rc == 0)
2044                                                 return;
2045                                         lpfc_printf_log(phba, KERN_ERR,
2046                                                 LOG_TRACE_EVENT,
2047                                                 "4215 Failed to recover UE");
2048                                         break;
2049                                 }
2050                         }
2051                 }
2052                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2053                                 "7624 Firmware not ready: Failing UE recovery,"
2054                                 " waited %dSec", i);
2055                 phba->link_state = LPFC_HBA_ERROR;
2056                 break;
2057
2058         case LPFC_SLI_INTF_IF_TYPE_2:
2059         case LPFC_SLI_INTF_IF_TYPE_6:
2060                 pci_rd_rc1 = lpfc_readl(
2061                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2062                                 &portstat_reg.word0);
2063                 /* consider PCI bus read error as pci_channel_offline */
2064                 if (pci_rd_rc1 == -EIO) {
2065                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2066                                 "3151 PCI bus read access failure: x%x\n",
2067                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2068                         lpfc_sli4_offline_eratt(phba);
2069                         return;
2070                 }
2071                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2072                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2073                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2074                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2075                                         "2889 Port Overtemperature event, "
2076                                         "taking port offline Data: x%x x%x\n",
2077                                         reg_err1, reg_err2);
2078
2079                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2080                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2081                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2082                         temp_event_data.data = 0xFFFFFFFF;
2083
2084                         shost = lpfc_shost_from_vport(phba->pport);
2085                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2086                                                   sizeof(temp_event_data),
2087                                                   (char *)&temp_event_data,
2088                                                   SCSI_NL_VID_TYPE_PCI
2089                                                   | PCI_VENDOR_ID_EMULEX);
2090
2091                         spin_lock_irq(&phba->hbalock);
2092                         phba->over_temp_state = HBA_OVER_TEMP;
2093                         spin_unlock_irq(&phba->hbalock);
2094                         lpfc_sli4_offline_eratt(phba);
2095                         return;
2096                 }
2097                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2098                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2099                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2100                                         "3143 Port Down: Firmware Update "
2101                                         "Detected\n");
2102                         en_rn_msg = false;
2103                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2104                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2105                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2106                                         "3144 Port Down: Debug Dump\n");
2107                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2108                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2109                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2110                                         "3145 Port Down: Provisioning\n");
2111
2112                 /* If resets are disabled then leave the HBA alone and return */
2113                 if (!phba->cfg_enable_hba_reset)
2114                         return;
2115
2116                 /* Check port status register for function reset */
2117                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2118                                 en_rn_msg);
2119                 if (rc == 0) {
2120                         /* don't report event on forced debug dump */
2121                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2122                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2123                                 return;
2124                         else
2125                                 break;
2126                 }
2127                 /* fall through for not able to recover */
2128                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2129                                 "3152 Unrecoverable error\n");
2130                 phba->link_state = LPFC_HBA_ERROR;
2131                 break;
2132         case LPFC_SLI_INTF_IF_TYPE_1:
2133         default:
2134                 break;
2135         }
2136         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2137                         "3123 Report dump event to upper layer\n");
2138         /* Send an internal error event to mgmt application */
2139         lpfc_board_errevt_to_mgmt(phba);
2140
2141         event_data = FC_REG_DUMP_EVENT;
2142         shost = lpfc_shost_from_vport(vport);
2143         fc_host_post_vendor_event(shost, fc_get_event_number(),
2144                                   sizeof(event_data), (char *) &event_data,
2145                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2146 }
2147
2148 /**
2149  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2150  * @phba: pointer to lpfc HBA data structure.
2151  *
2152  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2153  * routine from the API jump table function pointer from the lpfc_hba struct.
2154  *
2155  * Return codes
2156  *   0 - success.
2157  *   Any other value - error.
2158  **/
2159 void
2160 lpfc_handle_eratt(struct lpfc_hba *phba)
2161 {
2162         (*phba->lpfc_handle_eratt)(phba);
2163 }
2164
2165 /**
2166  * lpfc_handle_latt - The HBA link event handler
2167  * @phba: pointer to lpfc hba data structure.
2168  *
2169  * This routine is invoked from the worker thread to handle a HBA host
2170  * attention link event. SLI3 only.
2171  **/
2172 void
2173 lpfc_handle_latt(struct lpfc_hba *phba)
2174 {
2175         struct lpfc_vport *vport = phba->pport;
2176         struct lpfc_sli   *psli = &phba->sli;
2177         LPFC_MBOXQ_t *pmb;
2178         volatile uint32_t control;
2179         struct lpfc_dmabuf *mp;
2180         int rc = 0;
2181
2182         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2183         if (!pmb) {
2184                 rc = 1;
2185                 goto lpfc_handle_latt_err_exit;
2186         }
2187
2188         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2189         if (!mp) {
2190                 rc = 2;
2191                 goto lpfc_handle_latt_free_pmb;
2192         }
2193
2194         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2195         if (!mp->virt) {
2196                 rc = 3;
2197                 goto lpfc_handle_latt_free_mp;
2198         }
2199
2200         /* Cleanup any outstanding ELS commands */
2201         lpfc_els_flush_all_cmd(phba);
2202
2203         psli->slistat.link_event++;
2204         lpfc_read_topology(phba, pmb, mp);
2205         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2206         pmb->vport = vport;
2207         /* Block ELS IOCBs until we have processed this mbox command */
2208         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2209         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2210         if (rc == MBX_NOT_FINISHED) {
2211                 rc = 4;
2212                 goto lpfc_handle_latt_free_mbuf;
2213         }
2214
2215         /* Clear Link Attention in HA REG */
2216         spin_lock_irq(&phba->hbalock);
2217         writel(HA_LATT, phba->HAregaddr);
2218         readl(phba->HAregaddr); /* flush */
2219         spin_unlock_irq(&phba->hbalock);
2220
2221         return;
2222
2223 lpfc_handle_latt_free_mbuf:
2224         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2225         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2226 lpfc_handle_latt_free_mp:
2227         kfree(mp);
2228 lpfc_handle_latt_free_pmb:
2229         mempool_free(pmb, phba->mbox_mem_pool);
2230 lpfc_handle_latt_err_exit:
2231         /* Enable Link attention interrupts */
2232         spin_lock_irq(&phba->hbalock);
2233         psli->sli_flag |= LPFC_PROCESS_LA;
2234         control = readl(phba->HCregaddr);
2235         control |= HC_LAINT_ENA;
2236         writel(control, phba->HCregaddr);
2237         readl(phba->HCregaddr); /* flush */
2238
2239         /* Clear Link Attention in HA REG */
2240         writel(HA_LATT, phba->HAregaddr);
2241         readl(phba->HAregaddr); /* flush */
2242         spin_unlock_irq(&phba->hbalock);
2243         lpfc_linkdown(phba);
2244         phba->link_state = LPFC_HBA_ERROR;
2245
2246         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2247                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2248
2249         return;
2250 }
2251
2252 /**
2253  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2254  * @phba: pointer to lpfc hba data structure.
2255  * @vpd: pointer to the vital product data.
2256  * @len: length of the vital product data in bytes.
2257  *
2258  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2259  * an array of characters. In this routine, the ModelName, ProgramType, and
2260  * ModelDesc, etc. fields of the phba data structure will be populated.
2261  *
2262  * Return codes
2263  *   0 - pointer to the VPD passed in is NULL
2264  *   1 - success
2265  **/
2266 int
2267 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2268 {
2269         uint8_t lenlo, lenhi;
2270         int Length;
2271         int i, j;
2272         int finished = 0;
2273         int index = 0;
2274
2275         if (!vpd)
2276                 return 0;
2277
2278         /* Vital Product */
2279         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2280                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2281                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2282                         (uint32_t) vpd[3]);
2283         while (!finished && (index < (len - 4))) {
2284                 switch (vpd[index]) {
2285                 case 0x82:
2286                 case 0x91:
2287                         index += 1;
2288                         lenlo = vpd[index];
2289                         index += 1;
2290                         lenhi = vpd[index];
2291                         index += 1;
2292                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2293                         index += i;
2294                         break;
2295                 case 0x90:
2296                         index += 1;
2297                         lenlo = vpd[index];
2298                         index += 1;
2299                         lenhi = vpd[index];
2300                         index += 1;
2301                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2302                         if (Length > len - index)
2303                                 Length = len - index;
2304                         while (Length > 0) {
2305                         /* Look for Serial Number */
2306                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2307                                 index += 2;
2308                                 i = vpd[index];
2309                                 index += 1;
2310                                 j = 0;
2311                                 Length -= (3+i);
2312                                 while(i--) {
2313                                         phba->SerialNumber[j++] = vpd[index++];
2314                                         if (j == 31)
2315                                                 break;
2316                                 }
2317                                 phba->SerialNumber[j] = 0;
2318                                 continue;
2319                         }
2320                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2321                                 phba->vpd_flag |= VPD_MODEL_DESC;
2322                                 index += 2;
2323                                 i = vpd[index];
2324                                 index += 1;
2325                                 j = 0;
2326                                 Length -= (3+i);
2327                                 while(i--) {
2328                                         phba->ModelDesc[j++] = vpd[index++];
2329                                         if (j == 255)
2330                                                 break;
2331                                 }
2332                                 phba->ModelDesc[j] = 0;
2333                                 continue;
2334                         }
2335                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2336                                 phba->vpd_flag |= VPD_MODEL_NAME;
2337                                 index += 2;
2338                                 i = vpd[index];
2339                                 index += 1;
2340                                 j = 0;
2341                                 Length -= (3+i);
2342                                 while(i--) {
2343                                         phba->ModelName[j++] = vpd[index++];
2344                                         if (j == 79)
2345                                                 break;
2346                                 }
2347                                 phba->ModelName[j] = 0;
2348                                 continue;
2349                         }
2350                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2351                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2352                                 index += 2;
2353                                 i = vpd[index];
2354                                 index += 1;
2355                                 j = 0;
2356                                 Length -= (3+i);
2357                                 while(i--) {
2358                                         phba->ProgramType[j++] = vpd[index++];
2359                                         if (j == 255)
2360                                                 break;
2361                                 }
2362                                 phba->ProgramType[j] = 0;
2363                                 continue;
2364                         }
2365                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2366                                 phba->vpd_flag |= VPD_PORT;
2367                                 index += 2;
2368                                 i = vpd[index];
2369                                 index += 1;
2370                                 j = 0;
2371                                 Length -= (3+i);
2372                                 while(i--) {
2373                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2374                                             (phba->sli4_hba.pport_name_sta ==
2375                                              LPFC_SLI4_PPNAME_GET)) {
2376                                                 j++;
2377                                                 index++;
2378                                         } else
2379                                                 phba->Port[j++] = vpd[index++];
2380                                         if (j == 19)
2381                                                 break;
2382                                 }
2383                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2384                                     (phba->sli4_hba.pport_name_sta ==
2385                                      LPFC_SLI4_PPNAME_NON))
2386                                         phba->Port[j] = 0;
2387                                 continue;
2388                         }
2389                         else {
2390                                 index += 2;
2391                                 i = vpd[index];
2392                                 index += 1;
2393                                 index += i;
2394                                 Length -= (3 + i);
2395                         }
2396                 }
2397                 finished = 0;
2398                 break;
2399                 case 0x78:
2400                         finished = 1;
2401                         break;
2402                 default:
2403                         index ++;
2404                         break;
2405                 }
2406         }
2407
2408         return(1);
2409 }
2410
2411 /**
2412  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2413  * @phba: pointer to lpfc hba data structure.
2414  * @mdp: pointer to the data structure to hold the derived model name.
2415  * @descp: pointer to the data structure to hold the derived description.
2416  *
2417  * This routine retrieves HBA's description based on its registered PCI device
2418  * ID. The @descp passed into this function points to an array of 256 chars. It
2419  * shall be returned with the model name, maximum speed, and the host bus type.
2420  * The @mdp passed into this function points to an array of 80 chars. When the
2421  * function returns, the @mdp will be filled with the model name.
2422  **/
2423 static void
2424 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2425 {
2426         lpfc_vpd_t *vp;
2427         uint16_t dev_id = phba->pcidev->device;
2428         int max_speed;
2429         int GE = 0;
2430         int oneConnect = 0; /* default is not a oneConnect */
2431         struct {
2432                 char *name;
2433                 char *bus;
2434                 char *function;
2435         } m = {"<Unknown>", "", ""};
2436
2437         if (mdp && mdp[0] != '\0'
2438                 && descp && descp[0] != '\0')
2439                 return;
2440
2441         if (phba->lmt & LMT_64Gb)
2442                 max_speed = 64;
2443         else if (phba->lmt & LMT_32Gb)
2444                 max_speed = 32;
2445         else if (phba->lmt & LMT_16Gb)
2446                 max_speed = 16;
2447         else if (phba->lmt & LMT_10Gb)
2448                 max_speed = 10;
2449         else if (phba->lmt & LMT_8Gb)
2450                 max_speed = 8;
2451         else if (phba->lmt & LMT_4Gb)
2452                 max_speed = 4;
2453         else if (phba->lmt & LMT_2Gb)
2454                 max_speed = 2;
2455         else if (phba->lmt & LMT_1Gb)
2456                 max_speed = 1;
2457         else
2458                 max_speed = 0;
2459
2460         vp = &phba->vpd;
2461
2462         switch (dev_id) {
2463         case PCI_DEVICE_ID_FIREFLY:
2464                 m = (typeof(m)){"LP6000", "PCI",
2465                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2466                 break;
2467         case PCI_DEVICE_ID_SUPERFLY:
2468                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2469                         m = (typeof(m)){"LP7000", "PCI", ""};
2470                 else
2471                         m = (typeof(m)){"LP7000E", "PCI", ""};
2472                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2473                 break;
2474         case PCI_DEVICE_ID_DRAGONFLY:
2475                 m = (typeof(m)){"LP8000", "PCI",
2476                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2477                 break;
2478         case PCI_DEVICE_ID_CENTAUR:
2479                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2480                         m = (typeof(m)){"LP9002", "PCI", ""};
2481                 else
2482                         m = (typeof(m)){"LP9000", "PCI", ""};
2483                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2484                 break;
2485         case PCI_DEVICE_ID_RFLY:
2486                 m = (typeof(m)){"LP952", "PCI",
2487                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2488                 break;
2489         case PCI_DEVICE_ID_PEGASUS:
2490                 m = (typeof(m)){"LP9802", "PCI-X",
2491                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2492                 break;
2493         case PCI_DEVICE_ID_THOR:
2494                 m = (typeof(m)){"LP10000", "PCI-X",
2495                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2496                 break;
2497         case PCI_DEVICE_ID_VIPER:
2498                 m = (typeof(m)){"LPX1000",  "PCI-X",
2499                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2500                 break;
2501         case PCI_DEVICE_ID_PFLY:
2502                 m = (typeof(m)){"LP982", "PCI-X",
2503                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_TFLY:
2506                 m = (typeof(m)){"LP1050", "PCI-X",
2507                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_HELIOS:
2510                 m = (typeof(m)){"LP11000", "PCI-X2",
2511                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2512                 break;
2513         case PCI_DEVICE_ID_HELIOS_SCSP:
2514                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2515                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2516                 break;
2517         case PCI_DEVICE_ID_HELIOS_DCSP:
2518                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2519                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2520                 break;
2521         case PCI_DEVICE_ID_NEPTUNE:
2522                 m = (typeof(m)){"LPe1000", "PCIe",
2523                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2524                 break;
2525         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2526                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2527                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2528                 break;
2529         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2530                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2531                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2532                 break;
2533         case PCI_DEVICE_ID_BMID:
2534                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2535                 break;
2536         case PCI_DEVICE_ID_BSMB:
2537                 m = (typeof(m)){"LP111", "PCI-X2",
2538                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2539                 break;
2540         case PCI_DEVICE_ID_ZEPHYR:
2541                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2542                 break;
2543         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2544                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2545                 break;
2546         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2547                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2548                 GE = 1;
2549                 break;
2550         case PCI_DEVICE_ID_ZMID:
2551                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2552                 break;
2553         case PCI_DEVICE_ID_ZSMB:
2554                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2555                 break;
2556         case PCI_DEVICE_ID_LP101:
2557                 m = (typeof(m)){"LP101", "PCI-X",
2558                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2559                 break;
2560         case PCI_DEVICE_ID_LP10000S:
2561                 m = (typeof(m)){"LP10000-S", "PCI",
2562                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2563                 break;
2564         case PCI_DEVICE_ID_LP11000S:
2565                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2566                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2567                 break;
2568         case PCI_DEVICE_ID_LPE11000S:
2569                 m = (typeof(m)){"LPe11000-S", "PCIe",
2570                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2571                 break;
2572         case PCI_DEVICE_ID_SAT:
2573                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2574                 break;
2575         case PCI_DEVICE_ID_SAT_MID:
2576                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2577                 break;
2578         case PCI_DEVICE_ID_SAT_SMB:
2579                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2580                 break;
2581         case PCI_DEVICE_ID_SAT_DCSP:
2582                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2583                 break;
2584         case PCI_DEVICE_ID_SAT_SCSP:
2585                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2586                 break;
2587         case PCI_DEVICE_ID_SAT_S:
2588                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2589                 break;
2590         case PCI_DEVICE_ID_HORNET:
2591                 m = (typeof(m)){"LP21000", "PCIe",
2592                                 "Obsolete, Unsupported FCoE Adapter"};
2593                 GE = 1;
2594                 break;
2595         case PCI_DEVICE_ID_PROTEUS_VF:
2596                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2597                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2598                 break;
2599         case PCI_DEVICE_ID_PROTEUS_PF:
2600                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2601                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2602                 break;
2603         case PCI_DEVICE_ID_PROTEUS_S:
2604                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2605                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2606                 break;
2607         case PCI_DEVICE_ID_TIGERSHARK:
2608                 oneConnect = 1;
2609                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2610                 break;
2611         case PCI_DEVICE_ID_TOMCAT:
2612                 oneConnect = 1;
2613                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2614                 break;
2615         case PCI_DEVICE_ID_FALCON:
2616                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2617                                 "EmulexSecure Fibre"};
2618                 break;
2619         case PCI_DEVICE_ID_BALIUS:
2620                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2621                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2622                 break;
2623         case PCI_DEVICE_ID_LANCER_FC:
2624                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2625                 break;
2626         case PCI_DEVICE_ID_LANCER_FC_VF:
2627                 m = (typeof(m)){"LPe16000", "PCIe",
2628                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2629                 break;
2630         case PCI_DEVICE_ID_LANCER_FCOE:
2631                 oneConnect = 1;
2632                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2633                 break;
2634         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2635                 oneConnect = 1;
2636                 m = (typeof(m)){"OCe15100", "PCIe",
2637                                 "Obsolete, Unsupported FCoE"};
2638                 break;
2639         case PCI_DEVICE_ID_LANCER_G6_FC:
2640                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2641                 break;
2642         case PCI_DEVICE_ID_LANCER_G7_FC:
2643                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2644                 break;
2645         case PCI_DEVICE_ID_LANCER_G7P_FC:
2646                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2647                 break;
2648         case PCI_DEVICE_ID_SKYHAWK:
2649         case PCI_DEVICE_ID_SKYHAWK_VF:
2650                 oneConnect = 1;
2651                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2652                 break;
2653         default:
2654                 m = (typeof(m)){"Unknown", "", ""};
2655                 break;
2656         }
2657
2658         if (mdp && mdp[0] == '\0')
2659                 snprintf(mdp, 79,"%s", m.name);
2660         /*
2661          * oneConnect hba requires special processing, they are all initiators
2662          * and we put the port number on the end
2663          */
2664         if (descp && descp[0] == '\0') {
2665                 if (oneConnect)
2666                         snprintf(descp, 255,
2667                                 "Emulex OneConnect %s, %s Initiator %s",
2668                                 m.name, m.function,
2669                                 phba->Port);
2670                 else if (max_speed == 0)
2671                         snprintf(descp, 255,
2672                                 "Emulex %s %s %s",
2673                                 m.name, m.bus, m.function);
2674                 else
2675                         snprintf(descp, 255,
2676                                 "Emulex %s %d%s %s %s",
2677                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2678                                 m.bus, m.function);
2679         }
2680 }
2681
2682 /**
2683  * lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2684  * @phba: pointer to lpfc hba data structure.
2685  * @pring: pointer to a IOCB ring.
2686  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2687  *
2688  * This routine posts a given number of IOCBs with the associated DMA buffer
2689  * descriptors specified by the cnt argument to the given IOCB ring.
2690  *
2691  * Return codes
2692  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2693  **/
2694 int
2695 lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2696 {
2697         IOCB_t *icmd;
2698         struct lpfc_iocbq *iocb;
2699         struct lpfc_dmabuf *mp1, *mp2;
2700
2701         cnt += pring->missbufcnt;
2702
2703         /* While there are buffers to post */
2704         while (cnt > 0) {
2705                 /* Allocate buffer for  command iocb */
2706                 iocb = lpfc_sli_get_iocbq(phba);
2707                 if (iocb == NULL) {
2708                         pring->missbufcnt = cnt;
2709                         return cnt;
2710                 }
2711                 icmd = &iocb->iocb;
2712
2713                 /* 2 buffers can be posted per command */
2714                 /* Allocate buffer to post */
2715                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2716                 if (mp1)
2717                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2718                 if (!mp1 || !mp1->virt) {
2719                         kfree(mp1);
2720                         lpfc_sli_release_iocbq(phba, iocb);
2721                         pring->missbufcnt = cnt;
2722                         return cnt;
2723                 }
2724
2725                 INIT_LIST_HEAD(&mp1->list);
2726                 /* Allocate buffer to post */
2727                 if (cnt > 1) {
2728                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2729                         if (mp2)
2730                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2731                                                             &mp2->phys);
2732                         if (!mp2 || !mp2->virt) {
2733                                 kfree(mp2);
2734                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2735                                 kfree(mp1);
2736                                 lpfc_sli_release_iocbq(phba, iocb);
2737                                 pring->missbufcnt = cnt;
2738                                 return cnt;
2739                         }
2740
2741                         INIT_LIST_HEAD(&mp2->list);
2742                 } else {
2743                         mp2 = NULL;
2744                 }
2745
2746                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2747                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2748                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2749                 icmd->ulpBdeCount = 1;
2750                 cnt--;
2751                 if (mp2) {
2752                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2753                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2754                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2755                         cnt--;
2756                         icmd->ulpBdeCount = 2;
2757                 }
2758
2759                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2760                 icmd->ulpLe = 1;
2761
2762                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2763                     IOCB_ERROR) {
2764                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2765                         kfree(mp1);
2766                         cnt++;
2767                         if (mp2) {
2768                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2769                                 kfree(mp2);
2770                                 cnt++;
2771                         }
2772                         lpfc_sli_release_iocbq(phba, iocb);
2773                         pring->missbufcnt = cnt;
2774                         return cnt;
2775                 }
2776                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2777                 if (mp2)
2778                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2779         }
2780         pring->missbufcnt = 0;
2781         return 0;
2782 }
2783
2784 /**
2785  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2786  * @phba: pointer to lpfc hba data structure.
2787  *
2788  * This routine posts initial receive IOCB buffers to the ELS ring. The
2789  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2790  * set to 64 IOCBs. SLI3 only.
2791  *
2792  * Return codes
2793  *   0 - success (currently always success)
2794  **/
2795 static int
2796 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2797 {
2798         struct lpfc_sli *psli = &phba->sli;
2799
2800         /* Ring 0, ELS / CT buffers */
2801         lpfc_sli3_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2802         /* Ring 2 - FCP no buffers needed */
2803
2804         return 0;
2805 }
2806
2807 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2808
2809 /**
2810  * lpfc_sha_init - Set up initial array of hash table entries
2811  * @HashResultPointer: pointer to an array as hash table.
2812  *
2813  * This routine sets up the initial values to the array of hash table entries
2814  * for the LC HBAs.
2815  **/
2816 static void
2817 lpfc_sha_init(uint32_t * HashResultPointer)
2818 {
2819         HashResultPointer[0] = 0x67452301;
2820         HashResultPointer[1] = 0xEFCDAB89;
2821         HashResultPointer[2] = 0x98BADCFE;
2822         HashResultPointer[3] = 0x10325476;
2823         HashResultPointer[4] = 0xC3D2E1F0;
2824 }
2825
2826 /**
2827  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2828  * @HashResultPointer: pointer to an initial/result hash table.
2829  * @HashWorkingPointer: pointer to an working hash table.
2830  *
2831  * This routine iterates an initial hash table pointed by @HashResultPointer
2832  * with the values from the working hash table pointeed by @HashWorkingPointer.
2833  * The results are putting back to the initial hash table, returned through
2834  * the @HashResultPointer as the result hash table.
2835  **/
2836 static void
2837 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2838 {
2839         int t;
2840         uint32_t TEMP;
2841         uint32_t A, B, C, D, E;
2842         t = 16;
2843         do {
2844                 HashWorkingPointer[t] =
2845                     S(1,
2846                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2847                                                                      8] ^
2848                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2849         } while (++t <= 79);
2850         t = 0;
2851         A = HashResultPointer[0];
2852         B = HashResultPointer[1];
2853         C = HashResultPointer[2];
2854         D = HashResultPointer[3];
2855         E = HashResultPointer[4];
2856
2857         do {
2858                 if (t < 20) {
2859                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2860                 } else if (t < 40) {
2861                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2862                 } else if (t < 60) {
2863                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2864                 } else {
2865                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2866                 }
2867                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2868                 E = D;
2869                 D = C;
2870                 C = S(30, B);
2871                 B = A;
2872                 A = TEMP;
2873         } while (++t <= 79);
2874
2875         HashResultPointer[0] += A;
2876         HashResultPointer[1] += B;
2877         HashResultPointer[2] += C;
2878         HashResultPointer[3] += D;
2879         HashResultPointer[4] += E;
2880
2881 }
2882
2883 /**
2884  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2885  * @RandomChallenge: pointer to the entry of host challenge random number array.
2886  * @HashWorking: pointer to the entry of the working hash array.
2887  *
2888  * This routine calculates the working hash array referred by @HashWorking
2889  * from the challenge random numbers associated with the host, referred by
2890  * @RandomChallenge. The result is put into the entry of the working hash
2891  * array and returned by reference through @HashWorking.
2892  **/
2893 static void
2894 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2895 {
2896         *HashWorking = (*RandomChallenge ^ *HashWorking);
2897 }
2898
2899 /**
2900  * lpfc_hba_init - Perform special handling for LC HBA initialization
2901  * @phba: pointer to lpfc hba data structure.
2902  * @hbainit: pointer to an array of unsigned 32-bit integers.
2903  *
2904  * This routine performs the special handling for LC HBA initialization.
2905  **/
2906 void
2907 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2908 {
2909         int t;
2910         uint32_t *HashWorking;
2911         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2912
2913         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2914         if (!HashWorking)
2915                 return;
2916
2917         HashWorking[0] = HashWorking[78] = *pwwnn++;
2918         HashWorking[1] = HashWorking[79] = *pwwnn;
2919
2920         for (t = 0; t < 7; t++)
2921                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2922
2923         lpfc_sha_init(hbainit);
2924         lpfc_sha_iterate(hbainit, HashWorking);
2925         kfree(HashWorking);
2926 }
2927
2928 /**
2929  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2930  * @vport: pointer to a virtual N_Port data structure.
2931  *
2932  * This routine performs the necessary cleanups before deleting the @vport.
2933  * It invokes the discovery state machine to perform necessary state
2934  * transitions and to release the ndlps associated with the @vport. Note,
2935  * the physical port is treated as @vport 0.
2936  **/
2937 void
2938 lpfc_cleanup(struct lpfc_vport *vport)
2939 {
2940         struct lpfc_hba   *phba = vport->phba;
2941         struct lpfc_nodelist *ndlp, *next_ndlp;
2942         int i = 0;
2943
2944         if (phba->link_state > LPFC_LINK_DOWN)
2945                 lpfc_port_link_failure(vport);
2946
2947         /* Clean up VMID resources */
2948         if (lpfc_is_vmid_enabled(phba))
2949                 lpfc_vmid_vport_cleanup(vport);
2950
2951         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2952                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2953                     ndlp->nlp_DID == Fabric_DID) {
2954                         /* Just free up ndlp with Fabric_DID for vports */
2955                         lpfc_nlp_put(ndlp);
2956                         continue;
2957                 }
2958
2959                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2960                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2961                         lpfc_nlp_put(ndlp);
2962                         continue;
2963                 }
2964
2965                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2966                  * DEVICE_RM event.
2967                  */
2968                 if (ndlp->nlp_type & NLP_FABRIC &&
2969                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2970                         lpfc_disc_state_machine(vport, ndlp, NULL,
2971                                         NLP_EVT_DEVICE_RECOVERY);
2972
2973                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2974                         lpfc_disc_state_machine(vport, ndlp, NULL,
2975                                         NLP_EVT_DEVICE_RM);
2976         }
2977
2978         /* This is a special case flush to return all
2979          * IOs before entering this loop. There are
2980          * two points in the code where a flush is
2981          * avoided if the FC_UNLOADING flag is set.
2982          * one is in the multipool destroy,
2983          * (this prevents a crash) and the other is
2984          * in the nvme abort handler, ( also prevents
2985          * a crash). Both of these exceptions are
2986          * cases where the slot is still accessible.
2987          * The flush here is only when the pci slot
2988          * is offline.
2989          */
2990         if (vport->load_flag & FC_UNLOADING &&
2991             pci_channel_offline(phba->pcidev))
2992                 lpfc_sli_flush_io_rings(vport->phba);
2993
2994         /* At this point, ALL ndlp's should be gone
2995          * because of the previous NLP_EVT_DEVICE_RM.
2996          * Lets wait for this to happen, if needed.
2997          */
2998         while (!list_empty(&vport->fc_nodes)) {
2999                 if (i++ > 3000) {
3000                         lpfc_printf_vlog(vport, KERN_ERR,
3001                                          LOG_TRACE_EVENT,
3002                                 "0233 Nodelist not empty\n");
3003                         list_for_each_entry_safe(ndlp, next_ndlp,
3004                                                 &vport->fc_nodes, nlp_listp) {
3005                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
3006                                                  LOG_DISCOVERY,
3007                                                  "0282 did:x%x ndlp:x%px "
3008                                                  "refcnt:%d xflags x%x nflag x%x\n",
3009                                                  ndlp->nlp_DID, (void *)ndlp,
3010                                                  kref_read(&ndlp->kref),
3011                                                  ndlp->fc4_xpt_flags,
3012                                                  ndlp->nlp_flag);
3013                         }
3014                         break;
3015                 }
3016
3017                 /* Wait for any activity on ndlps to settle */
3018                 msleep(10);
3019         }
3020         lpfc_cleanup_vports_rrqs(vport, NULL);
3021 }
3022
3023 /**
3024  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
3025  * @vport: pointer to a virtual N_Port data structure.
3026  *
3027  * This routine stops all the timers associated with a @vport. This function
3028  * is invoked before disabling or deleting a @vport. Note that the physical
3029  * port is treated as @vport 0.
3030  **/
3031 void
3032 lpfc_stop_vport_timers(struct lpfc_vport *vport)
3033 {
3034         del_timer_sync(&vport->els_tmofunc);
3035         del_timer_sync(&vport->delayed_disc_tmo);
3036         lpfc_can_disctmo(vport);
3037         return;
3038 }
3039
3040 /**
3041  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3042  * @phba: pointer to lpfc hba data structure.
3043  *
3044  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3045  * caller of this routine should already hold the host lock.
3046  **/
3047 void
3048 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3049 {
3050         /* Clear pending FCF rediscovery wait flag */
3051         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3052
3053         /* Now, try to stop the timer */
3054         del_timer(&phba->fcf.redisc_wait);
3055 }
3056
3057 /**
3058  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3059  * @phba: pointer to lpfc hba data structure.
3060  *
3061  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3062  * checks whether the FCF rediscovery wait timer is pending with the host
3063  * lock held before proceeding with disabling the timer and clearing the
3064  * wait timer pendig flag.
3065  **/
3066 void
3067 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3068 {
3069         spin_lock_irq(&phba->hbalock);
3070         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3071                 /* FCF rediscovery timer already fired or stopped */
3072                 spin_unlock_irq(&phba->hbalock);
3073                 return;
3074         }
3075         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3076         /* Clear failover in progress flags */
3077         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3078         spin_unlock_irq(&phba->hbalock);
3079 }
3080
3081 /**
3082  * lpfc_cmf_stop - Stop CMF processing
3083  * @phba: pointer to lpfc hba data structure.
3084  *
3085  * This is called when the link goes down or if CMF mode is turned OFF.
3086  * It is also called when going offline or unloaded just before the
3087  * congestion info buffer is unregistered.
3088  **/
3089 void
3090 lpfc_cmf_stop(struct lpfc_hba *phba)
3091 {
3092         int cpu;
3093         struct lpfc_cgn_stat *cgs;
3094
3095         /* We only do something if CMF is enabled */
3096         if (!phba->sli4_hba.pc_sli4_params.cmf)
3097                 return;
3098
3099         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3100                         "6221 Stop CMF / Cancel Timer\n");
3101
3102         /* Cancel the CMF timer */
3103         hrtimer_cancel(&phba->cmf_timer);
3104
3105         /* Zero CMF counters */
3106         atomic_set(&phba->cmf_busy, 0);
3107         for_each_present_cpu(cpu) {
3108                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3109                 atomic64_set(&cgs->total_bytes, 0);
3110                 atomic64_set(&cgs->rcv_bytes, 0);
3111                 atomic_set(&cgs->rx_io_cnt, 0);
3112                 atomic64_set(&cgs->rx_latency, 0);
3113         }
3114         atomic_set(&phba->cmf_bw_wait, 0);
3115
3116         /* Resume any blocked IO - Queue unblock on workqueue */
3117         queue_work(phba->wq, &phba->unblock_request_work);
3118 }
3119
3120 static inline uint64_t
3121 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3122 {
3123         uint64_t rate = lpfc_sli_port_speed_get(phba);
3124
3125         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3126 }
3127
3128 void
3129 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3130 {
3131         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3132                         "6223 Signal CMF init\n");
3133
3134         /* Use the new fc_linkspeed to recalculate */
3135         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3136         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3137         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3138                                             phba->cmf_interval_rate, 1000);
3139         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3140
3141         /* This is a signal to firmware to sync up CMF BW with link speed */
3142         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3143 }
3144
3145 /**
3146  * lpfc_cmf_start - Start CMF processing
3147  * @phba: pointer to lpfc hba data structure.
3148  *
3149  * This is called when the link comes up or if CMF mode is turned OFF
3150  * to Monitor or Managed.
3151  **/
3152 void
3153 lpfc_cmf_start(struct lpfc_hba *phba)
3154 {
3155         struct lpfc_cgn_stat *cgs;
3156         int cpu;
3157
3158         /* We only do something if CMF is enabled */
3159         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3160             phba->cmf_active_mode == LPFC_CFG_OFF)
3161                 return;
3162
3163         /* Reinitialize congestion buffer info */
3164         lpfc_init_congestion_buf(phba);
3165
3166         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3167         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3168         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3169         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3170
3171         atomic_set(&phba->cmf_busy, 0);
3172         for_each_present_cpu(cpu) {
3173                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3174                 atomic64_set(&cgs->total_bytes, 0);
3175                 atomic64_set(&cgs->rcv_bytes, 0);
3176                 atomic_set(&cgs->rx_io_cnt, 0);
3177                 atomic64_set(&cgs->rx_latency, 0);
3178         }
3179         phba->cmf_latency.tv_sec = 0;
3180         phba->cmf_latency.tv_nsec = 0;
3181
3182         lpfc_cmf_signal_init(phba);
3183
3184         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3185                         "6222 Start CMF / Timer\n");
3186
3187         phba->cmf_timer_cnt = 0;
3188         hrtimer_start(&phba->cmf_timer,
3189                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3190                       HRTIMER_MODE_REL);
3191         /* Setup for latency check in IO cmpl routines */
3192         ktime_get_real_ts64(&phba->cmf_latency);
3193
3194         atomic_set(&phba->cmf_bw_wait, 0);
3195         atomic_set(&phba->cmf_stop_io, 0);
3196 }
3197
3198 /**
3199  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3200  * @phba: pointer to lpfc hba data structure.
3201  *
3202  * This routine stops all the timers associated with a HBA. This function is
3203  * invoked before either putting a HBA offline or unloading the driver.
3204  **/
3205 void
3206 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3207 {
3208         if (phba->pport)
3209                 lpfc_stop_vport_timers(phba->pport);
3210         cancel_delayed_work_sync(&phba->eq_delay_work);
3211         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3212         del_timer_sync(&phba->sli.mbox_tmo);
3213         del_timer_sync(&phba->fabric_block_timer);
3214         del_timer_sync(&phba->eratt_poll);
3215         del_timer_sync(&phba->hb_tmofunc);
3216         if (phba->sli_rev == LPFC_SLI_REV4) {
3217                 del_timer_sync(&phba->rrq_tmr);
3218                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3219         }
3220         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3221
3222         switch (phba->pci_dev_grp) {
3223         case LPFC_PCI_DEV_LP:
3224                 /* Stop any LightPulse device specific driver timers */
3225                 del_timer_sync(&phba->fcp_poll_timer);
3226                 break;
3227         case LPFC_PCI_DEV_OC:
3228                 /* Stop any OneConnect device specific driver timers */
3229                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3230                 break;
3231         default:
3232                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3233                                 "0297 Invalid device group (x%x)\n",
3234                                 phba->pci_dev_grp);
3235                 break;
3236         }
3237         return;
3238 }
3239
3240 /**
3241  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3242  * @phba: pointer to lpfc hba data structure.
3243  * @mbx_action: flag for mailbox no wait action.
3244  *
3245  * This routine marks a HBA's management interface as blocked. Once the HBA's
3246  * management interface is marked as blocked, all the user space access to
3247  * the HBA, whether they are from sysfs interface or libdfc interface will
3248  * all be blocked. The HBA is set to block the management interface when the
3249  * driver prepares the HBA interface for online or offline.
3250  **/
3251 static void
3252 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3253 {
3254         unsigned long iflag;
3255         uint8_t actcmd = MBX_HEARTBEAT;
3256         unsigned long timeout;
3257
3258         spin_lock_irqsave(&phba->hbalock, iflag);
3259         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3260         spin_unlock_irqrestore(&phba->hbalock, iflag);
3261         if (mbx_action == LPFC_MBX_NO_WAIT)
3262                 return;
3263         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3264         spin_lock_irqsave(&phba->hbalock, iflag);
3265         if (phba->sli.mbox_active) {
3266                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3267                 /* Determine how long we might wait for the active mailbox
3268                  * command to be gracefully completed by firmware.
3269                  */
3270                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3271                                 phba->sli.mbox_active) * 1000) + jiffies;
3272         }
3273         spin_unlock_irqrestore(&phba->hbalock, iflag);
3274
3275         /* Wait for the outstnading mailbox command to complete */
3276         while (phba->sli.mbox_active) {
3277                 /* Check active mailbox complete status every 2ms */
3278                 msleep(2);
3279                 if (time_after(jiffies, timeout)) {
3280                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3281                                         "2813 Mgmt IO is Blocked %x "
3282                                         "- mbox cmd %x still active\n",
3283                                         phba->sli.sli_flag, actcmd);
3284                         break;
3285                 }
3286         }
3287 }
3288
3289 /**
3290  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3291  * @phba: pointer to lpfc hba data structure.
3292  *
3293  * Allocate RPIs for all active remote nodes. This is needed whenever
3294  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3295  * is to fixup the temporary rpi assignments.
3296  **/
3297 void
3298 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3299 {
3300         struct lpfc_nodelist  *ndlp, *next_ndlp;
3301         struct lpfc_vport **vports;
3302         int i, rpi;
3303
3304         if (phba->sli_rev != LPFC_SLI_REV4)
3305                 return;
3306
3307         vports = lpfc_create_vport_work_array(phba);
3308         if (vports == NULL)
3309                 return;
3310
3311         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3312                 if (vports[i]->load_flag & FC_UNLOADING)
3313                         continue;
3314
3315                 list_for_each_entry_safe(ndlp, next_ndlp,
3316                                          &vports[i]->fc_nodes,
3317                                          nlp_listp) {
3318                         rpi = lpfc_sli4_alloc_rpi(phba);
3319                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3320                                 /* TODO print log? */
3321                                 continue;
3322                         }
3323                         ndlp->nlp_rpi = rpi;
3324                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3325                                          LOG_NODE | LOG_DISCOVERY,
3326                                          "0009 Assign RPI x%x to ndlp x%px "
3327                                          "DID:x%06x flg:x%x\n",
3328                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3329                                          ndlp->nlp_flag);
3330                 }
3331         }
3332         lpfc_destroy_vport_work_array(phba, vports);
3333 }
3334
3335 /**
3336  * lpfc_create_expedite_pool - create expedite pool
3337  * @phba: pointer to lpfc hba data structure.
3338  *
3339  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3340  * to expedite pool. Mark them as expedite.
3341  **/
3342 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3343 {
3344         struct lpfc_sli4_hdw_queue *qp;
3345         struct lpfc_io_buf *lpfc_ncmd;
3346         struct lpfc_io_buf *lpfc_ncmd_next;
3347         struct lpfc_epd_pool *epd_pool;
3348         unsigned long iflag;
3349
3350         epd_pool = &phba->epd_pool;
3351         qp = &phba->sli4_hba.hdwq[0];
3352
3353         spin_lock_init(&epd_pool->lock);
3354         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3355         spin_lock(&epd_pool->lock);
3356         INIT_LIST_HEAD(&epd_pool->list);
3357         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3358                                  &qp->lpfc_io_buf_list_put, list) {
3359                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3360                 lpfc_ncmd->expedite = true;
3361                 qp->put_io_bufs--;
3362                 epd_pool->count++;
3363                 if (epd_pool->count >= XRI_BATCH)
3364                         break;
3365         }
3366         spin_unlock(&epd_pool->lock);
3367         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3368 }
3369
3370 /**
3371  * lpfc_destroy_expedite_pool - destroy expedite pool
3372  * @phba: pointer to lpfc hba data structure.
3373  *
3374  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3375  * of HWQ 0. Clear the mark.
3376  **/
3377 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3378 {
3379         struct lpfc_sli4_hdw_queue *qp;
3380         struct lpfc_io_buf *lpfc_ncmd;
3381         struct lpfc_io_buf *lpfc_ncmd_next;
3382         struct lpfc_epd_pool *epd_pool;
3383         unsigned long iflag;
3384
3385         epd_pool = &phba->epd_pool;
3386         qp = &phba->sli4_hba.hdwq[0];
3387
3388         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3389         spin_lock(&epd_pool->lock);
3390         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3391                                  &epd_pool->list, list) {
3392                 list_move_tail(&lpfc_ncmd->list,
3393                                &qp->lpfc_io_buf_list_put);
3394                 lpfc_ncmd->flags = false;
3395                 qp->put_io_bufs++;
3396                 epd_pool->count--;
3397         }
3398         spin_unlock(&epd_pool->lock);
3399         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3400 }
3401
3402 /**
3403  * lpfc_create_multixri_pools - create multi-XRI pools
3404  * @phba: pointer to lpfc hba data structure.
3405  *
3406  * This routine initialize public, private per HWQ. Then, move XRIs from
3407  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3408  * Initialized.
3409  **/
3410 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3411 {
3412         u32 i, j;
3413         u32 hwq_count;
3414         u32 count_per_hwq;
3415         struct lpfc_io_buf *lpfc_ncmd;
3416         struct lpfc_io_buf *lpfc_ncmd_next;
3417         unsigned long iflag;
3418         struct lpfc_sli4_hdw_queue *qp;
3419         struct lpfc_multixri_pool *multixri_pool;
3420         struct lpfc_pbl_pool *pbl_pool;
3421         struct lpfc_pvt_pool *pvt_pool;
3422
3423         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3424                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3425                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3426                         phba->sli4_hba.io_xri_cnt);
3427
3428         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3429                 lpfc_create_expedite_pool(phba);
3430
3431         hwq_count = phba->cfg_hdw_queue;
3432         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3433
3434         for (i = 0; i < hwq_count; i++) {
3435                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3436
3437                 if (!multixri_pool) {
3438                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3439                                         "1238 Failed to allocate memory for "
3440                                         "multixri_pool\n");
3441
3442                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3443                                 lpfc_destroy_expedite_pool(phba);
3444
3445                         j = 0;
3446                         while (j < i) {
3447                                 qp = &phba->sli4_hba.hdwq[j];
3448                                 kfree(qp->p_multixri_pool);
3449                                 j++;
3450                         }
3451                         phba->cfg_xri_rebalancing = 0;
3452                         return;
3453                 }
3454
3455                 qp = &phba->sli4_hba.hdwq[i];
3456                 qp->p_multixri_pool = multixri_pool;
3457
3458                 multixri_pool->xri_limit = count_per_hwq;
3459                 multixri_pool->rrb_next_hwqid = i;
3460
3461                 /* Deal with public free xri pool */
3462                 pbl_pool = &multixri_pool->pbl_pool;
3463                 spin_lock_init(&pbl_pool->lock);
3464                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3465                 spin_lock(&pbl_pool->lock);
3466                 INIT_LIST_HEAD(&pbl_pool->list);
3467                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3468                                          &qp->lpfc_io_buf_list_put, list) {
3469                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3470                         qp->put_io_bufs--;
3471                         pbl_pool->count++;
3472                 }
3473                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3474                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3475                                 pbl_pool->count, i);
3476                 spin_unlock(&pbl_pool->lock);
3477                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3478
3479                 /* Deal with private free xri pool */
3480                 pvt_pool = &multixri_pool->pvt_pool;
3481                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3482                 pvt_pool->low_watermark = XRI_BATCH;
3483                 spin_lock_init(&pvt_pool->lock);
3484                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3485                 INIT_LIST_HEAD(&pvt_pool->list);
3486                 pvt_pool->count = 0;
3487                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3488         }
3489 }
3490
3491 /**
3492  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3493  * @phba: pointer to lpfc hba data structure.
3494  *
3495  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3496  **/
3497 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3498 {
3499         u32 i;
3500         u32 hwq_count;
3501         struct lpfc_io_buf *lpfc_ncmd;
3502         struct lpfc_io_buf *lpfc_ncmd_next;
3503         unsigned long iflag;
3504         struct lpfc_sli4_hdw_queue *qp;
3505         struct lpfc_multixri_pool *multixri_pool;
3506         struct lpfc_pbl_pool *pbl_pool;
3507         struct lpfc_pvt_pool *pvt_pool;
3508
3509         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3510                 lpfc_destroy_expedite_pool(phba);
3511
3512         if (!(phba->pport->load_flag & FC_UNLOADING))
3513                 lpfc_sli_flush_io_rings(phba);
3514
3515         hwq_count = phba->cfg_hdw_queue;
3516
3517         for (i = 0; i < hwq_count; i++) {
3518                 qp = &phba->sli4_hba.hdwq[i];
3519                 multixri_pool = qp->p_multixri_pool;
3520                 if (!multixri_pool)
3521                         continue;
3522
3523                 qp->p_multixri_pool = NULL;
3524
3525                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3526
3527                 /* Deal with public free xri pool */
3528                 pbl_pool = &multixri_pool->pbl_pool;
3529                 spin_lock(&pbl_pool->lock);
3530
3531                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3532                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3533                                 pbl_pool->count, i);
3534
3535                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3536                                          &pbl_pool->list, list) {
3537                         list_move_tail(&lpfc_ncmd->list,
3538                                        &qp->lpfc_io_buf_list_put);
3539                         qp->put_io_bufs++;
3540                         pbl_pool->count--;
3541                 }
3542
3543                 INIT_LIST_HEAD(&pbl_pool->list);
3544                 pbl_pool->count = 0;
3545
3546                 spin_unlock(&pbl_pool->lock);
3547
3548                 /* Deal with private free xri pool */
3549                 pvt_pool = &multixri_pool->pvt_pool;
3550                 spin_lock(&pvt_pool->lock);
3551
3552                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3553                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3554                                 pvt_pool->count, i);
3555
3556                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3557                                          &pvt_pool->list, list) {
3558                         list_move_tail(&lpfc_ncmd->list,
3559                                        &qp->lpfc_io_buf_list_put);
3560                         qp->put_io_bufs++;
3561                         pvt_pool->count--;
3562                 }
3563
3564                 INIT_LIST_HEAD(&pvt_pool->list);
3565                 pvt_pool->count = 0;
3566
3567                 spin_unlock(&pvt_pool->lock);
3568                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3569
3570                 kfree(multixri_pool);
3571         }
3572 }
3573
3574 /**
3575  * lpfc_online - Initialize and bring a HBA online
3576  * @phba: pointer to lpfc hba data structure.
3577  *
3578  * This routine initializes the HBA and brings a HBA online. During this
3579  * process, the management interface is blocked to prevent user space access
3580  * to the HBA interfering with the driver initialization.
3581  *
3582  * Return codes
3583  *   0 - successful
3584  *   1 - failed
3585  **/
3586 int
3587 lpfc_online(struct lpfc_hba *phba)
3588 {
3589         struct lpfc_vport *vport;
3590         struct lpfc_vport **vports;
3591         int i, error = 0;
3592         bool vpis_cleared = false;
3593
3594         if (!phba)
3595                 return 0;
3596         vport = phba->pport;
3597
3598         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3599                 return 0;
3600
3601         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3602                         "0458 Bring Adapter online\n");
3603
3604         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3605
3606         if (phba->sli_rev == LPFC_SLI_REV4) {
3607                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3608                         lpfc_unblock_mgmt_io(phba);
3609                         return 1;
3610                 }
3611                 spin_lock_irq(&phba->hbalock);
3612                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3613                         vpis_cleared = true;
3614                 spin_unlock_irq(&phba->hbalock);
3615
3616                 /* Reestablish the local initiator port.
3617                  * The offline process destroyed the previous lport.
3618                  */
3619                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3620                                 !phba->nvmet_support) {
3621                         error = lpfc_nvme_create_localport(phba->pport);
3622                         if (error)
3623                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3624                                         "6132 NVME restore reg failed "
3625                                         "on nvmei error x%x\n", error);
3626                 }
3627         } else {
3628                 lpfc_sli_queue_init(phba);
3629                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3630                         lpfc_unblock_mgmt_io(phba);
3631                         return 1;
3632                 }
3633         }
3634
3635         vports = lpfc_create_vport_work_array(phba);
3636         if (vports != NULL) {
3637                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3638                         struct Scsi_Host *shost;
3639                         shost = lpfc_shost_from_vport(vports[i]);
3640                         spin_lock_irq(shost->host_lock);
3641                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3642                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3643                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3644                         if (phba->sli_rev == LPFC_SLI_REV4) {
3645                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3646                                 if ((vpis_cleared) &&
3647                                     (vports[i]->port_type !=
3648                                         LPFC_PHYSICAL_PORT))
3649                                         vports[i]->vpi = 0;
3650                         }
3651                         spin_unlock_irq(shost->host_lock);
3652                 }
3653         }
3654         lpfc_destroy_vport_work_array(phba, vports);
3655
3656         if (phba->cfg_xri_rebalancing)
3657                 lpfc_create_multixri_pools(phba);
3658
3659         lpfc_cpuhp_add(phba);
3660
3661         lpfc_unblock_mgmt_io(phba);
3662         return 0;
3663 }
3664
3665 /**
3666  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3667  * @phba: pointer to lpfc hba data structure.
3668  *
3669  * This routine marks a HBA's management interface as not blocked. Once the
3670  * HBA's management interface is marked as not blocked, all the user space
3671  * access to the HBA, whether they are from sysfs interface or libdfc
3672  * interface will be allowed. The HBA is set to block the management interface
3673  * when the driver prepares the HBA interface for online or offline and then
3674  * set to unblock the management interface afterwards.
3675  **/
3676 void
3677 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3678 {
3679         unsigned long iflag;
3680
3681         spin_lock_irqsave(&phba->hbalock, iflag);
3682         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3683         spin_unlock_irqrestore(&phba->hbalock, iflag);
3684 }
3685
3686 /**
3687  * lpfc_offline_prep - Prepare a HBA to be brought offline
3688  * @phba: pointer to lpfc hba data structure.
3689  * @mbx_action: flag for mailbox shutdown action.
3690  *
3691  * This routine is invoked to prepare a HBA to be brought offline. It performs
3692  * unregistration login to all the nodes on all vports and flushes the mailbox
3693  * queue to make it ready to be brought offline.
3694  **/
3695 void
3696 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3697 {
3698         struct lpfc_vport *vport = phba->pport;
3699         struct lpfc_nodelist  *ndlp, *next_ndlp;
3700         struct lpfc_vport **vports;
3701         struct Scsi_Host *shost;
3702         int i;
3703         int offline;
3704         bool hba_pci_err;
3705
3706         if (vport->fc_flag & FC_OFFLINE_MODE)
3707                 return;
3708
3709         lpfc_block_mgmt_io(phba, mbx_action);
3710
3711         lpfc_linkdown(phba);
3712
3713         offline =  pci_channel_offline(phba->pcidev);
3714         hba_pci_err = test_bit(HBA_PCI_ERR, &phba->bit_flags);
3715
3716         /* Issue an unreg_login to all nodes on all vports */
3717         vports = lpfc_create_vport_work_array(phba);
3718         if (vports != NULL) {
3719                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3720                         if (vports[i]->load_flag & FC_UNLOADING)
3721                                 continue;
3722                         shost = lpfc_shost_from_vport(vports[i]);
3723                         spin_lock_irq(shost->host_lock);
3724                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3725                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3726                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3727                         spin_unlock_irq(shost->host_lock);
3728
3729                         shost = lpfc_shost_from_vport(vports[i]);
3730                         list_for_each_entry_safe(ndlp, next_ndlp,
3731                                                  &vports[i]->fc_nodes,
3732                                                  nlp_listp) {
3733
3734                                 spin_lock_irq(&ndlp->lock);
3735                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3736                                 spin_unlock_irq(&ndlp->lock);
3737
3738                                 if (offline || hba_pci_err) {
3739                                         spin_lock_irq(&ndlp->lock);
3740                                         ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3741                                                             NLP_RPI_REGISTERED);
3742                                         spin_unlock_irq(&ndlp->lock);
3743                                         if (phba->sli_rev == LPFC_SLI_REV4)
3744                                                 lpfc_sli_rpi_release(vports[i],
3745                                                                      ndlp);
3746                                 } else {
3747                                         lpfc_unreg_rpi(vports[i], ndlp);
3748                                 }
3749                                 /*
3750                                  * Whenever an SLI4 port goes offline, free the
3751                                  * RPI. Get a new RPI when the adapter port
3752                                  * comes back online.
3753                                  */
3754                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3755                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3756                                                  LOG_NODE | LOG_DISCOVERY,
3757                                                  "0011 Free RPI x%x on "
3758                                                  "ndlp: x%px did x%x\n",
3759                                                  ndlp->nlp_rpi, ndlp,
3760                                                  ndlp->nlp_DID);
3761                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3762                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3763                                 }
3764
3765                                 if (ndlp->nlp_type & NLP_FABRIC) {
3766                                         lpfc_disc_state_machine(vports[i], ndlp,
3767                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3768
3769                                         /* Don't remove the node unless the node
3770                                          * has been unregistered with the
3771                                          * transport, and we're not in recovery
3772                                          * before dev_loss_tmo triggered.
3773                                          * Otherwise, let dev_loss take care of
3774                                          * the node.
3775                                          */
3776                                         if (!(ndlp->save_flags &
3777                                               NLP_IN_RECOV_POST_DEV_LOSS) &&
3778                                             !(ndlp->fc4_xpt_flags &
3779                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3780                                                 lpfc_disc_state_machine
3781                                                         (vports[i], ndlp,
3782                                                          NULL,
3783                                                          NLP_EVT_DEVICE_RM);
3784                                 }
3785                         }
3786                 }
3787         }
3788         lpfc_destroy_vport_work_array(phba, vports);
3789
3790         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3791
3792         if (phba->wq)
3793                 flush_workqueue(phba->wq);
3794 }
3795
3796 /**
3797  * lpfc_offline - Bring a HBA offline
3798  * @phba: pointer to lpfc hba data structure.
3799  *
3800  * This routine actually brings a HBA offline. It stops all the timers
3801  * associated with the HBA, brings down the SLI layer, and eventually
3802  * marks the HBA as in offline state for the upper layer protocol.
3803  **/
3804 void
3805 lpfc_offline(struct lpfc_hba *phba)
3806 {
3807         struct Scsi_Host  *shost;
3808         struct lpfc_vport **vports;
3809         int i;
3810
3811         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3812                 return;
3813
3814         /* stop port and all timers associated with this hba */
3815         lpfc_stop_port(phba);
3816
3817         /* Tear down the local and target port registrations.  The
3818          * nvme transports need to cleanup.
3819          */
3820         lpfc_nvmet_destroy_targetport(phba);
3821         lpfc_nvme_destroy_localport(phba->pport);
3822
3823         vports = lpfc_create_vport_work_array(phba);
3824         if (vports != NULL)
3825                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3826                         lpfc_stop_vport_timers(vports[i]);
3827         lpfc_destroy_vport_work_array(phba, vports);
3828         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3829                         "0460 Bring Adapter offline\n");
3830         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3831            now.  */
3832         lpfc_sli_hba_down(phba);
3833         spin_lock_irq(&phba->hbalock);
3834         phba->work_ha = 0;
3835         spin_unlock_irq(&phba->hbalock);
3836         vports = lpfc_create_vport_work_array(phba);
3837         if (vports != NULL)
3838                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3839                         shost = lpfc_shost_from_vport(vports[i]);
3840                         spin_lock_irq(shost->host_lock);
3841                         vports[i]->work_port_events = 0;
3842                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3843                         spin_unlock_irq(shost->host_lock);
3844                 }
3845         lpfc_destroy_vport_work_array(phba, vports);
3846         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3847          * in hba_unset
3848          */
3849         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3850                 __lpfc_cpuhp_remove(phba);
3851
3852         if (phba->cfg_xri_rebalancing)
3853                 lpfc_destroy_multixri_pools(phba);
3854 }
3855
3856 /**
3857  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3858  * @phba: pointer to lpfc hba data structure.
3859  *
3860  * This routine is to free all the SCSI buffers and IOCBs from the driver
3861  * list back to kernel. It is called from lpfc_pci_remove_one to free
3862  * the internal resources before the device is removed from the system.
3863  **/
3864 static void
3865 lpfc_scsi_free(struct lpfc_hba *phba)
3866 {
3867         struct lpfc_io_buf *sb, *sb_next;
3868
3869         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3870                 return;
3871
3872         spin_lock_irq(&phba->hbalock);
3873
3874         /* Release all the lpfc_scsi_bufs maintained by this host. */
3875
3876         spin_lock(&phba->scsi_buf_list_put_lock);
3877         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3878                                  list) {
3879                 list_del(&sb->list);
3880                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3881                               sb->dma_handle);
3882                 kfree(sb);
3883                 phba->total_scsi_bufs--;
3884         }
3885         spin_unlock(&phba->scsi_buf_list_put_lock);
3886
3887         spin_lock(&phba->scsi_buf_list_get_lock);
3888         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3889                                  list) {
3890                 list_del(&sb->list);
3891                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3892                               sb->dma_handle);
3893                 kfree(sb);
3894                 phba->total_scsi_bufs--;
3895         }
3896         spin_unlock(&phba->scsi_buf_list_get_lock);
3897         spin_unlock_irq(&phba->hbalock);
3898 }
3899
3900 /**
3901  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3902  * @phba: pointer to lpfc hba data structure.
3903  *
3904  * This routine is to free all the IO buffers and IOCBs from the driver
3905  * list back to kernel. It is called from lpfc_pci_remove_one to free
3906  * the internal resources before the device is removed from the system.
3907  **/
3908 void
3909 lpfc_io_free(struct lpfc_hba *phba)
3910 {
3911         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3912         struct lpfc_sli4_hdw_queue *qp;
3913         int idx;
3914
3915         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3916                 qp = &phba->sli4_hba.hdwq[idx];
3917                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3918                 spin_lock(&qp->io_buf_list_put_lock);
3919                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3920                                          &qp->lpfc_io_buf_list_put,
3921                                          list) {
3922                         list_del(&lpfc_ncmd->list);
3923                         qp->put_io_bufs--;
3924                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3925                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3926                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3927                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3928                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3929                         kfree(lpfc_ncmd);
3930                         qp->total_io_bufs--;
3931                 }
3932                 spin_unlock(&qp->io_buf_list_put_lock);
3933
3934                 spin_lock(&qp->io_buf_list_get_lock);
3935                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3936                                          &qp->lpfc_io_buf_list_get,
3937                                          list) {
3938                         list_del(&lpfc_ncmd->list);
3939                         qp->get_io_bufs--;
3940                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3941                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3942                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3943                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3944                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3945                         kfree(lpfc_ncmd);
3946                         qp->total_io_bufs--;
3947                 }
3948                 spin_unlock(&qp->io_buf_list_get_lock);
3949         }
3950 }
3951
3952 /**
3953  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3954  * @phba: pointer to lpfc hba data structure.
3955  *
3956  * This routine first calculates the sizes of the current els and allocated
3957  * scsi sgl lists, and then goes through all sgls to updates the physical
3958  * XRIs assigned due to port function reset. During port initialization, the
3959  * current els and allocated scsi sgl lists are 0s.
3960  *
3961  * Return codes
3962  *   0 - successful (for now, it always returns 0)
3963  **/
3964 int
3965 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3966 {
3967         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3968         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3969         LIST_HEAD(els_sgl_list);
3970         int rc;
3971
3972         /*
3973          * update on pci function's els xri-sgl list
3974          */
3975         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3976
3977         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3978                 /* els xri-sgl expanded */
3979                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3980                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3981                                 "3157 ELS xri-sgl count increased from "
3982                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3983                                 els_xri_cnt);
3984                 /* allocate the additional els sgls */
3985                 for (i = 0; i < xri_cnt; i++) {
3986                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3987                                              GFP_KERNEL);
3988                         if (sglq_entry == NULL) {
3989                                 lpfc_printf_log(phba, KERN_ERR,
3990                                                 LOG_TRACE_EVENT,
3991                                                 "2562 Failure to allocate an "
3992                                                 "ELS sgl entry:%d\n", i);
3993                                 rc = -ENOMEM;
3994                                 goto out_free_mem;
3995                         }
3996                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3997                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3998                                                            &sglq_entry->phys);
3999                         if (sglq_entry->virt == NULL) {
4000                                 kfree(sglq_entry);
4001                                 lpfc_printf_log(phba, KERN_ERR,
4002                                                 LOG_TRACE_EVENT,
4003                                                 "2563 Failure to allocate an "
4004                                                 "ELS mbuf:%d\n", i);
4005                                 rc = -ENOMEM;
4006                                 goto out_free_mem;
4007                         }
4008                         sglq_entry->sgl = sglq_entry->virt;
4009                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4010                         sglq_entry->state = SGL_FREED;
4011                         list_add_tail(&sglq_entry->list, &els_sgl_list);
4012                 }
4013                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4014                 list_splice_init(&els_sgl_list,
4015                                  &phba->sli4_hba.lpfc_els_sgl_list);
4016                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4017         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4018                 /* els xri-sgl shrinked */
4019                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4020                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4021                                 "3158 ELS xri-sgl count decreased from "
4022                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4023                                 els_xri_cnt);
4024                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4025                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
4026                                  &els_sgl_list);
4027                 /* release extra els sgls from list */
4028                 for (i = 0; i < xri_cnt; i++) {
4029                         list_remove_head(&els_sgl_list,
4030                                          sglq_entry, struct lpfc_sglq, list);
4031                         if (sglq_entry) {
4032                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
4033                                                  sglq_entry->phys);
4034                                 kfree(sglq_entry);
4035                         }
4036                 }
4037                 list_splice_init(&els_sgl_list,
4038                                  &phba->sli4_hba.lpfc_els_sgl_list);
4039                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4040         } else
4041                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4042                                 "3163 ELS xri-sgl count unchanged: %d\n",
4043                                 els_xri_cnt);
4044         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4045
4046         /* update xris to els sgls on the list */
4047         sglq_entry = NULL;
4048         sglq_entry_next = NULL;
4049         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4050                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
4051                 lxri = lpfc_sli4_next_xritag(phba);
4052                 if (lxri == NO_XRI) {
4053                         lpfc_printf_log(phba, KERN_ERR,
4054                                         LOG_TRACE_EVENT,
4055                                         "2400 Failed to allocate xri for "
4056                                         "ELS sgl\n");
4057                         rc = -ENOMEM;
4058                         goto out_free_mem;
4059                 }
4060                 sglq_entry->sli4_lxritag = lxri;
4061                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4062         }
4063         return 0;
4064
4065 out_free_mem:
4066         lpfc_free_els_sgl_list(phba);
4067         return rc;
4068 }
4069
4070 /**
4071  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4072  * @phba: pointer to lpfc hba data structure.
4073  *
4074  * This routine first calculates the sizes of the current els and allocated
4075  * scsi sgl lists, and then goes through all sgls to updates the physical
4076  * XRIs assigned due to port function reset. During port initialization, the
4077  * current els and allocated scsi sgl lists are 0s.
4078  *
4079  * Return codes
4080  *   0 - successful (for now, it always returns 0)
4081  **/
4082 int
4083 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4084 {
4085         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4086         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4087         uint16_t nvmet_xri_cnt;
4088         LIST_HEAD(nvmet_sgl_list);
4089         int rc;
4090
4091         /*
4092          * update on pci function's nvmet xri-sgl list
4093          */
4094         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4095
4096         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4097         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4098         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4099                 /* els xri-sgl expanded */
4100                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4101                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4102                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4103                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4104                 /* allocate the additional nvmet sgls */
4105                 for (i = 0; i < xri_cnt; i++) {
4106                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4107                                              GFP_KERNEL);
4108                         if (sglq_entry == NULL) {
4109                                 lpfc_printf_log(phba, KERN_ERR,
4110                                                 LOG_TRACE_EVENT,
4111                                                 "6303 Failure to allocate an "
4112                                                 "NVMET sgl entry:%d\n", i);
4113                                 rc = -ENOMEM;
4114                                 goto out_free_mem;
4115                         }
4116                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4117                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4118                                                            &sglq_entry->phys);
4119                         if (sglq_entry->virt == NULL) {
4120                                 kfree(sglq_entry);
4121                                 lpfc_printf_log(phba, KERN_ERR,
4122                                                 LOG_TRACE_EVENT,
4123                                                 "6304 Failure to allocate an "
4124                                                 "NVMET buf:%d\n", i);
4125                                 rc = -ENOMEM;
4126                                 goto out_free_mem;
4127                         }
4128                         sglq_entry->sgl = sglq_entry->virt;
4129                         memset(sglq_entry->sgl, 0,
4130                                phba->cfg_sg_dma_buf_size);
4131                         sglq_entry->state = SGL_FREED;
4132                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4133                 }
4134                 spin_lock_irq(&phba->hbalock);
4135                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4136                 list_splice_init(&nvmet_sgl_list,
4137                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4138                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4139                 spin_unlock_irq(&phba->hbalock);
4140         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4141                 /* nvmet xri-sgl shrunk */
4142                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4143                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4144                                 "6305 NVMET xri-sgl count decreased from "
4145                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4146                                 nvmet_xri_cnt);
4147                 spin_lock_irq(&phba->hbalock);
4148                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4149                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4150                                  &nvmet_sgl_list);
4151                 /* release extra nvmet sgls from list */
4152                 for (i = 0; i < xri_cnt; i++) {
4153                         list_remove_head(&nvmet_sgl_list,
4154                                          sglq_entry, struct lpfc_sglq, list);
4155                         if (sglq_entry) {
4156                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4157                                                     sglq_entry->phys);
4158                                 kfree(sglq_entry);
4159                         }
4160                 }
4161                 list_splice_init(&nvmet_sgl_list,
4162                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4163                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4164                 spin_unlock_irq(&phba->hbalock);
4165         } else
4166                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4167                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4168                                 nvmet_xri_cnt);
4169         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4170
4171         /* update xris to nvmet sgls on the list */
4172         sglq_entry = NULL;
4173         sglq_entry_next = NULL;
4174         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4175                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4176                 lxri = lpfc_sli4_next_xritag(phba);
4177                 if (lxri == NO_XRI) {
4178                         lpfc_printf_log(phba, KERN_ERR,
4179                                         LOG_TRACE_EVENT,
4180                                         "6307 Failed to allocate xri for "
4181                                         "NVMET sgl\n");
4182                         rc = -ENOMEM;
4183                         goto out_free_mem;
4184                 }
4185                 sglq_entry->sli4_lxritag = lxri;
4186                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4187         }
4188         return 0;
4189
4190 out_free_mem:
4191         lpfc_free_nvmet_sgl_list(phba);
4192         return rc;
4193 }
4194
4195 int
4196 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4197 {
4198         LIST_HEAD(blist);
4199         struct lpfc_sli4_hdw_queue *qp;
4200         struct lpfc_io_buf *lpfc_cmd;
4201         struct lpfc_io_buf *iobufp, *prev_iobufp;
4202         int idx, cnt, xri, inserted;
4203
4204         cnt = 0;
4205         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4206                 qp = &phba->sli4_hba.hdwq[idx];
4207                 spin_lock_irq(&qp->io_buf_list_get_lock);
4208                 spin_lock(&qp->io_buf_list_put_lock);
4209
4210                 /* Take everything off the get and put lists */
4211                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4212                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4213                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4214                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4215                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4216                 qp->get_io_bufs = 0;
4217                 qp->put_io_bufs = 0;
4218                 qp->total_io_bufs = 0;
4219                 spin_unlock(&qp->io_buf_list_put_lock);
4220                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4221         }
4222
4223         /*
4224          * Take IO buffers off blist and put on cbuf sorted by XRI.
4225          * This is because POST_SGL takes a sequential range of XRIs
4226          * to post to the firmware.
4227          */
4228         for (idx = 0; idx < cnt; idx++) {
4229                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4230                 if (!lpfc_cmd)
4231                         return cnt;
4232                 if (idx == 0) {
4233                         list_add_tail(&lpfc_cmd->list, cbuf);
4234                         continue;
4235                 }
4236                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4237                 inserted = 0;
4238                 prev_iobufp = NULL;
4239                 list_for_each_entry(iobufp, cbuf, list) {
4240                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4241                                 if (prev_iobufp)
4242                                         list_add(&lpfc_cmd->list,
4243                                                  &prev_iobufp->list);
4244                                 else
4245                                         list_add(&lpfc_cmd->list, cbuf);
4246                                 inserted = 1;
4247                                 break;
4248                         }
4249                         prev_iobufp = iobufp;
4250                 }
4251                 if (!inserted)
4252                         list_add_tail(&lpfc_cmd->list, cbuf);
4253         }
4254         return cnt;
4255 }
4256
4257 int
4258 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4259 {
4260         struct lpfc_sli4_hdw_queue *qp;
4261         struct lpfc_io_buf *lpfc_cmd;
4262         int idx, cnt;
4263
4264         qp = phba->sli4_hba.hdwq;
4265         cnt = 0;
4266         while (!list_empty(cbuf)) {
4267                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4268                         list_remove_head(cbuf, lpfc_cmd,
4269                                          struct lpfc_io_buf, list);
4270                         if (!lpfc_cmd)
4271                                 return cnt;
4272                         cnt++;
4273                         qp = &phba->sli4_hba.hdwq[idx];
4274                         lpfc_cmd->hdwq_no = idx;
4275                         lpfc_cmd->hdwq = qp;
4276                         lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
4277                         spin_lock(&qp->io_buf_list_put_lock);
4278                         list_add_tail(&lpfc_cmd->list,
4279                                       &qp->lpfc_io_buf_list_put);
4280                         qp->put_io_bufs++;
4281                         qp->total_io_bufs++;
4282                         spin_unlock(&qp->io_buf_list_put_lock);
4283                 }
4284         }
4285         return cnt;
4286 }
4287
4288 /**
4289  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4290  * @phba: pointer to lpfc hba data structure.
4291  *
4292  * This routine first calculates the sizes of the current els and allocated
4293  * scsi sgl lists, and then goes through all sgls to updates the physical
4294  * XRIs assigned due to port function reset. During port initialization, the
4295  * current els and allocated scsi sgl lists are 0s.
4296  *
4297  * Return codes
4298  *   0 - successful (for now, it always returns 0)
4299  **/
4300 int
4301 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4302 {
4303         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4304         uint16_t i, lxri, els_xri_cnt;
4305         uint16_t io_xri_cnt, io_xri_max;
4306         LIST_HEAD(io_sgl_list);
4307         int rc, cnt;
4308
4309         /*
4310          * update on pci function's allocated nvme xri-sgl list
4311          */
4312
4313         /* maximum number of xris available for nvme buffers */
4314         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4315         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4316         phba->sli4_hba.io_xri_max = io_xri_max;
4317
4318         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4319                         "6074 Current allocated XRI sgl count:%d, "
4320                         "maximum XRI count:%d\n",
4321                         phba->sli4_hba.io_xri_cnt,
4322                         phba->sli4_hba.io_xri_max);
4323
4324         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4325
4326         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4327                 /* max nvme xri shrunk below the allocated nvme buffers */
4328                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4329                                         phba->sli4_hba.io_xri_max;
4330                 /* release the extra allocated nvme buffers */
4331                 for (i = 0; i < io_xri_cnt; i++) {
4332                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4333                                          struct lpfc_io_buf, list);
4334                         if (lpfc_ncmd) {
4335                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4336                                               lpfc_ncmd->data,
4337                                               lpfc_ncmd->dma_handle);
4338                                 kfree(lpfc_ncmd);
4339                         }
4340                 }
4341                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4342         }
4343
4344         /* update xris associated to remaining allocated nvme buffers */
4345         lpfc_ncmd = NULL;
4346         lpfc_ncmd_next = NULL;
4347         phba->sli4_hba.io_xri_cnt = cnt;
4348         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4349                                  &io_sgl_list, list) {
4350                 lxri = lpfc_sli4_next_xritag(phba);
4351                 if (lxri == NO_XRI) {
4352                         lpfc_printf_log(phba, KERN_ERR,
4353                                         LOG_TRACE_EVENT,
4354                                         "6075 Failed to allocate xri for "
4355                                         "nvme buffer\n");
4356                         rc = -ENOMEM;
4357                         goto out_free_mem;
4358                 }
4359                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4360                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4361         }
4362         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4363         return 0;
4364
4365 out_free_mem:
4366         lpfc_io_free(phba);
4367         return rc;
4368 }
4369
4370 /**
4371  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4372  * @phba: Pointer to lpfc hba data structure.
4373  * @num_to_alloc: The requested number of buffers to allocate.
4374  *
4375  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4376  * the nvme buffer contains all the necessary information needed to initiate
4377  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4378  * them on a list, it post them to the port by using SGL block post.
4379  *
4380  * Return codes:
4381  *   int - number of IO buffers that were allocated and posted.
4382  *   0 = failure, less than num_to_alloc is a partial failure.
4383  **/
4384 int
4385 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4386 {
4387         struct lpfc_io_buf *lpfc_ncmd;
4388         struct lpfc_iocbq *pwqeq;
4389         uint16_t iotag, lxri = 0;
4390         int bcnt, num_posted;
4391         LIST_HEAD(prep_nblist);
4392         LIST_HEAD(post_nblist);
4393         LIST_HEAD(nvme_nblist);
4394
4395         phba->sli4_hba.io_xri_cnt = 0;
4396         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4397                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4398                 if (!lpfc_ncmd)
4399                         break;
4400                 /*
4401                  * Get memory from the pci pool to map the virt space to
4402                  * pci bus space for an I/O. The DMA buffer includes the
4403                  * number of SGE's necessary to support the sg_tablesize.
4404                  */
4405                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4406                                                   GFP_KERNEL,
4407                                                   &lpfc_ncmd->dma_handle);
4408                 if (!lpfc_ncmd->data) {
4409                         kfree(lpfc_ncmd);
4410                         break;
4411                 }
4412
4413                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4414                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4415                 } else {
4416                         /*
4417                          * 4K Page alignment is CRITICAL to BlockGuard, double
4418                          * check to be sure.
4419                          */
4420                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4421                             (((unsigned long)(lpfc_ncmd->data) &
4422                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4423                                 lpfc_printf_log(phba, KERN_ERR,
4424                                                 LOG_TRACE_EVENT,
4425                                                 "3369 Memory alignment err: "
4426                                                 "addr=%lx\n",
4427                                                 (unsigned long)lpfc_ncmd->data);
4428                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4429                                               lpfc_ncmd->data,
4430                                               lpfc_ncmd->dma_handle);
4431                                 kfree(lpfc_ncmd);
4432                                 break;
4433                         }
4434                 }
4435
4436                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4437
4438                 lxri = lpfc_sli4_next_xritag(phba);
4439                 if (lxri == NO_XRI) {
4440                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4441                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4442                         kfree(lpfc_ncmd);
4443                         break;
4444                 }
4445                 pwqeq = &lpfc_ncmd->cur_iocbq;
4446
4447                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4448                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4449                 if (iotag == 0) {
4450                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4451                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4452                         kfree(lpfc_ncmd);
4453                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4454                                         "6121 Failed to allocate IOTAG for"
4455                                         " XRI:0x%x\n", lxri);
4456                         lpfc_sli4_free_xri(phba, lxri);
4457                         break;
4458                 }
4459                 pwqeq->sli4_lxritag = lxri;
4460                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4461                 pwqeq->context1 = lpfc_ncmd;
4462
4463                 /* Initialize local short-hand pointers. */
4464                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4465                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4466                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4467                 spin_lock_init(&lpfc_ncmd->buf_lock);
4468
4469                 /* add the nvme buffer to a post list */
4470                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4471                 phba->sli4_hba.io_xri_cnt++;
4472         }
4473         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4474                         "6114 Allocate %d out of %d requested new NVME "
4475                         "buffers\n", bcnt, num_to_alloc);
4476
4477         /* post the list of nvme buffer sgls to port if available */
4478         if (!list_empty(&post_nblist))
4479                 num_posted = lpfc_sli4_post_io_sgl_list(
4480                                 phba, &post_nblist, bcnt);
4481         else
4482                 num_posted = 0;
4483
4484         return num_posted;
4485 }
4486
4487 static uint64_t
4488 lpfc_get_wwpn(struct lpfc_hba *phba)
4489 {
4490         uint64_t wwn;
4491         int rc;
4492         LPFC_MBOXQ_t *mboxq;
4493         MAILBOX_t *mb;
4494
4495         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4496                                                 GFP_KERNEL);
4497         if (!mboxq)
4498                 return (uint64_t)-1;
4499
4500         /* First get WWN of HBA instance */
4501         lpfc_read_nv(phba, mboxq);
4502         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4503         if (rc != MBX_SUCCESS) {
4504                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4505                                 "6019 Mailbox failed , mbxCmd x%x "
4506                                 "READ_NV, mbxStatus x%x\n",
4507                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4508                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4509                 mempool_free(mboxq, phba->mbox_mem_pool);
4510                 return (uint64_t) -1;
4511         }
4512         mb = &mboxq->u.mb;
4513         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4514         /* wwn is WWPN of HBA instance */
4515         mempool_free(mboxq, phba->mbox_mem_pool);
4516         if (phba->sli_rev == LPFC_SLI_REV4)
4517                 return be64_to_cpu(wwn);
4518         else
4519                 return rol64(wwn, 32);
4520 }
4521
4522 /**
4523  * lpfc_vmid_res_alloc - Allocates resources for VMID
4524  * @phba: pointer to lpfc hba data structure.
4525  * @vport: pointer to vport data structure
4526  *
4527  * This routine allocated the resources needed for the VMID.
4528  *
4529  * Return codes
4530  *      0 on Success
4531  *      Non-0 on Failure
4532  */
4533 static int
4534 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4535 {
4536         /* VMID feature is supported only on SLI4 */
4537         if (phba->sli_rev == LPFC_SLI_REV3) {
4538                 phba->cfg_vmid_app_header = 0;
4539                 phba->cfg_vmid_priority_tagging = 0;
4540         }
4541
4542         if (lpfc_is_vmid_enabled(phba)) {
4543                 vport->vmid =
4544                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4545                             GFP_KERNEL);
4546                 if (!vport->vmid)
4547                         return -ENOMEM;
4548
4549                 rwlock_init(&vport->vmid_lock);
4550
4551                 /* Set the VMID parameters for the vport */
4552                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4553                 vport->vmid_inactivity_timeout =
4554                     phba->cfg_vmid_inactivity_timeout;
4555                 vport->max_vmid = phba->cfg_max_vmid;
4556                 vport->cur_vmid_cnt = 0;
4557
4558                 vport->vmid_priority_range = bitmap_zalloc
4559                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4560
4561                 if (!vport->vmid_priority_range) {
4562                         kfree(vport->vmid);
4563                         return -ENOMEM;
4564                 }
4565
4566                 hash_init(vport->hash_table);
4567         }
4568         return 0;
4569 }
4570
4571 /**
4572  * lpfc_create_port - Create an FC port
4573  * @phba: pointer to lpfc hba data structure.
4574  * @instance: a unique integer ID to this FC port.
4575  * @dev: pointer to the device data structure.
4576  *
4577  * This routine creates a FC port for the upper layer protocol. The FC port
4578  * can be created on top of either a physical port or a virtual port provided
4579  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4580  * and associates the FC port created before adding the shost into the SCSI
4581  * layer.
4582  *
4583  * Return codes
4584  *   @vport - pointer to the virtual N_Port data structure.
4585  *   NULL - port create failed.
4586  **/
4587 struct lpfc_vport *
4588 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4589 {
4590         struct lpfc_vport *vport;
4591         struct Scsi_Host  *shost = NULL;
4592         struct scsi_host_template *template;
4593         int error = 0;
4594         int i;
4595         uint64_t wwn;
4596         bool use_no_reset_hba = false;
4597         int rc;
4598
4599         if (lpfc_no_hba_reset_cnt) {
4600                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4601                     dev == &phba->pcidev->dev) {
4602                         /* Reset the port first */
4603                         lpfc_sli_brdrestart(phba);
4604                         rc = lpfc_sli_chipset_init(phba);
4605                         if (rc)
4606                                 return NULL;
4607                 }
4608                 wwn = lpfc_get_wwpn(phba);
4609         }
4610
4611         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4612                 if (wwn == lpfc_no_hba_reset[i]) {
4613                         lpfc_printf_log(phba, KERN_ERR,
4614                                         LOG_TRACE_EVENT,
4615                                         "6020 Setting use_no_reset port=%llx\n",
4616                                         wwn);
4617                         use_no_reset_hba = true;
4618                         break;
4619                 }
4620         }
4621
4622         /* Seed template for SCSI host registration */
4623         if (dev == &phba->pcidev->dev) {
4624                 template = &phba->port_template;
4625
4626                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4627                         /* Seed physical port template */
4628                         memcpy(template, &lpfc_template, sizeof(*template));
4629
4630                         if (use_no_reset_hba)
4631                                 /* template is for a no reset SCSI Host */
4632                                 template->eh_host_reset_handler = NULL;
4633
4634                         /* Template for all vports this physical port creates */
4635                         memcpy(&phba->vport_template, &lpfc_template,
4636                                sizeof(*template));
4637                         phba->vport_template.shost_groups = lpfc_vport_groups;
4638                         phba->vport_template.eh_bus_reset_handler = NULL;
4639                         phba->vport_template.eh_host_reset_handler = NULL;
4640                         phba->vport_template.vendor_id = 0;
4641
4642                         /* Initialize the host templates with updated value */
4643                         if (phba->sli_rev == LPFC_SLI_REV4) {
4644                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4645                                 phba->vport_template.sg_tablesize =
4646                                         phba->cfg_scsi_seg_cnt;
4647                         } else {
4648                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4649                                 phba->vport_template.sg_tablesize =
4650                                         phba->cfg_sg_seg_cnt;
4651                         }
4652
4653                 } else {
4654                         /* NVMET is for physical port only */
4655                         memcpy(template, &lpfc_template_nvme,
4656                                sizeof(*template));
4657                 }
4658         } else {
4659                 template = &phba->vport_template;
4660         }
4661
4662         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4663         if (!shost)
4664                 goto out;
4665
4666         vport = (struct lpfc_vport *) shost->hostdata;
4667         vport->phba = phba;
4668         vport->load_flag |= FC_LOADING;
4669         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4670         vport->fc_rscn_flush = 0;
4671         lpfc_get_vport_cfgparam(vport);
4672
4673         /* Adjust value in vport */
4674         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4675
4676         shost->unique_id = instance;
4677         shost->max_id = LPFC_MAX_TARGET;
4678         shost->max_lun = vport->cfg_max_luns;
4679         shost->this_id = -1;
4680         shost->max_cmd_len = 16;
4681
4682         if (phba->sli_rev == LPFC_SLI_REV4) {
4683                 if (!phba->cfg_fcp_mq_threshold ||
4684                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4685                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4686
4687                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4688                                             phba->cfg_fcp_mq_threshold);
4689
4690                 shost->dma_boundary =
4691                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4692
4693                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4694                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4695                 else
4696                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4697         } else
4698                 /* SLI-3 has a limited number of hardware queues (3),
4699                  * thus there is only one for FCP processing.
4700                  */
4701                 shost->nr_hw_queues = 1;
4702
4703         /*
4704          * Set initial can_queue value since 0 is no longer supported and
4705          * scsi_add_host will fail. This will be adjusted later based on the
4706          * max xri value determined in hba setup.
4707          */
4708         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4709         if (dev != &phba->pcidev->dev) {
4710                 shost->transportt = lpfc_vport_transport_template;
4711                 vport->port_type = LPFC_NPIV_PORT;
4712         } else {
4713                 shost->transportt = lpfc_transport_template;
4714                 vport->port_type = LPFC_PHYSICAL_PORT;
4715         }
4716
4717         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4718                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4719                         "SEGcnt %d/%d\n",
4720                         vport->port_type, shost->sg_tablesize,
4721                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4722
4723         /* Allocate the resources for VMID */
4724         rc = lpfc_vmid_res_alloc(phba, vport);
4725
4726         if (rc)
4727                 goto out;
4728
4729         /* Initialize all internally managed lists. */
4730         INIT_LIST_HEAD(&vport->fc_nodes);
4731         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4732         spin_lock_init(&vport->work_port_lock);
4733
4734         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4735
4736         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4737
4738         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4739
4740         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4741                 lpfc_setup_bg(phba, shost);
4742
4743         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4744         if (error)
4745                 goto out_put_shost;
4746
4747         spin_lock_irq(&phba->port_list_lock);
4748         list_add_tail(&vport->listentry, &phba->port_list);
4749         spin_unlock_irq(&phba->port_list_lock);
4750         return vport;
4751
4752 out_put_shost:
4753         kfree(vport->vmid);
4754         bitmap_free(vport->vmid_priority_range);
4755         scsi_host_put(shost);
4756 out:
4757         return NULL;
4758 }
4759
4760 /**
4761  * destroy_port -  destroy an FC port
4762  * @vport: pointer to an lpfc virtual N_Port data structure.
4763  *
4764  * This routine destroys a FC port from the upper layer protocol. All the
4765  * resources associated with the port are released.
4766  **/
4767 void
4768 destroy_port(struct lpfc_vport *vport)
4769 {
4770         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4771         struct lpfc_hba  *phba = vport->phba;
4772
4773         lpfc_debugfs_terminate(vport);
4774         fc_remove_host(shost);
4775         scsi_remove_host(shost);
4776
4777         spin_lock_irq(&phba->port_list_lock);
4778         list_del_init(&vport->listentry);
4779         spin_unlock_irq(&phba->port_list_lock);
4780
4781         lpfc_cleanup(vport);
4782         return;
4783 }
4784
4785 /**
4786  * lpfc_get_instance - Get a unique integer ID
4787  *
4788  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4789  * uses the kernel idr facility to perform the task.
4790  *
4791  * Return codes:
4792  *   instance - a unique integer ID allocated as the new instance.
4793  *   -1 - lpfc get instance failed.
4794  **/
4795 int
4796 lpfc_get_instance(void)
4797 {
4798         int ret;
4799
4800         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4801         return ret < 0 ? -1 : ret;
4802 }
4803
4804 /**
4805  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4806  * @shost: pointer to SCSI host data structure.
4807  * @time: elapsed time of the scan in jiffies.
4808  *
4809  * This routine is called by the SCSI layer with a SCSI host to determine
4810  * whether the scan host is finished.
4811  *
4812  * Note: there is no scan_start function as adapter initialization will have
4813  * asynchronously kicked off the link initialization.
4814  *
4815  * Return codes
4816  *   0 - SCSI host scan is not over yet.
4817  *   1 - SCSI host scan is over.
4818  **/
4819 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4820 {
4821         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4822         struct lpfc_hba   *phba = vport->phba;
4823         int stat = 0;
4824
4825         spin_lock_irq(shost->host_lock);
4826
4827         if (vport->load_flag & FC_UNLOADING) {
4828                 stat = 1;
4829                 goto finished;
4830         }
4831         if (time >= msecs_to_jiffies(30 * 1000)) {
4832                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4833                                 "0461 Scanning longer than 30 "
4834                                 "seconds.  Continuing initialization\n");
4835                 stat = 1;
4836                 goto finished;
4837         }
4838         if (time >= msecs_to_jiffies(15 * 1000) &&
4839             phba->link_state <= LPFC_LINK_DOWN) {
4840                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4841                                 "0465 Link down longer than 15 "
4842                                 "seconds.  Continuing initialization\n");
4843                 stat = 1;
4844                 goto finished;
4845         }
4846
4847         if (vport->port_state != LPFC_VPORT_READY)
4848                 goto finished;
4849         if (vport->num_disc_nodes || vport->fc_prli_sent)
4850                 goto finished;
4851         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4852                 goto finished;
4853         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4854                 goto finished;
4855
4856         stat = 1;
4857
4858 finished:
4859         spin_unlock_irq(shost->host_lock);
4860         return stat;
4861 }
4862
4863 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4864 {
4865         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4866         struct lpfc_hba   *phba = vport->phba;
4867
4868         fc_host_supported_speeds(shost) = 0;
4869         /*
4870          * Avoid reporting supported link speed for FCoE as it can't be
4871          * controlled via FCoE.
4872          */
4873         if (phba->hba_flag & HBA_FCOE_MODE)
4874                 return;
4875
4876         if (phba->lmt & LMT_256Gb)
4877                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4878         if (phba->lmt & LMT_128Gb)
4879                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4880         if (phba->lmt & LMT_64Gb)
4881                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4882         if (phba->lmt & LMT_32Gb)
4883                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4884         if (phba->lmt & LMT_16Gb)
4885                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4886         if (phba->lmt & LMT_10Gb)
4887                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4888         if (phba->lmt & LMT_8Gb)
4889                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4890         if (phba->lmt & LMT_4Gb)
4891                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4892         if (phba->lmt & LMT_2Gb)
4893                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4894         if (phba->lmt & LMT_1Gb)
4895                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4896 }
4897
4898 /**
4899  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4900  * @shost: pointer to SCSI host data structure.
4901  *
4902  * This routine initializes a given SCSI host attributes on a FC port. The
4903  * SCSI host can be either on top of a physical port or a virtual port.
4904  **/
4905 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4906 {
4907         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4908         struct lpfc_hba   *phba = vport->phba;
4909         /*
4910          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4911          */
4912
4913         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4914         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4915         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4916
4917         memset(fc_host_supported_fc4s(shost), 0,
4918                sizeof(fc_host_supported_fc4s(shost)));
4919         fc_host_supported_fc4s(shost)[2] = 1;
4920         fc_host_supported_fc4s(shost)[7] = 1;
4921
4922         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4923                                  sizeof fc_host_symbolic_name(shost));
4924
4925         lpfc_host_supported_speeds_set(shost);
4926
4927         fc_host_maxframe_size(shost) =
4928                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4929                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4930
4931         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4932
4933         /* This value is also unchanging */
4934         memset(fc_host_active_fc4s(shost), 0,
4935                sizeof(fc_host_active_fc4s(shost)));
4936         fc_host_active_fc4s(shost)[2] = 1;
4937         fc_host_active_fc4s(shost)[7] = 1;
4938
4939         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4940         spin_lock_irq(shost->host_lock);
4941         vport->load_flag &= ~FC_LOADING;
4942         spin_unlock_irq(shost->host_lock);
4943 }
4944
4945 /**
4946  * lpfc_stop_port_s3 - Stop SLI3 device port
4947  * @phba: pointer to lpfc hba data structure.
4948  *
4949  * This routine is invoked to stop an SLI3 device port, it stops the device
4950  * from generating interrupts and stops the device driver's timers for the
4951  * device.
4952  **/
4953 static void
4954 lpfc_stop_port_s3(struct lpfc_hba *phba)
4955 {
4956         /* Clear all interrupt enable conditions */
4957         writel(0, phba->HCregaddr);
4958         readl(phba->HCregaddr); /* flush */
4959         /* Clear all pending interrupts */
4960         writel(0xffffffff, phba->HAregaddr);
4961         readl(phba->HAregaddr); /* flush */
4962
4963         /* Reset some HBA SLI setup states */
4964         lpfc_stop_hba_timers(phba);
4965         phba->pport->work_port_events = 0;
4966 }
4967
4968 /**
4969  * lpfc_stop_port_s4 - Stop SLI4 device port
4970  * @phba: pointer to lpfc hba data structure.
4971  *
4972  * This routine is invoked to stop an SLI4 device port, it stops the device
4973  * from generating interrupts and stops the device driver's timers for the
4974  * device.
4975  **/
4976 static void
4977 lpfc_stop_port_s4(struct lpfc_hba *phba)
4978 {
4979         /* Reset some HBA SLI4 setup states */
4980         lpfc_stop_hba_timers(phba);
4981         if (phba->pport)
4982                 phba->pport->work_port_events = 0;
4983         phba->sli4_hba.intr_enable = 0;
4984 }
4985
4986 /**
4987  * lpfc_stop_port - Wrapper function for stopping hba port
4988  * @phba: Pointer to HBA context object.
4989  *
4990  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4991  * the API jump table function pointer from the lpfc_hba struct.
4992  **/
4993 void
4994 lpfc_stop_port(struct lpfc_hba *phba)
4995 {
4996         phba->lpfc_stop_port(phba);
4997
4998         if (phba->wq)
4999                 flush_workqueue(phba->wq);
5000 }
5001
5002 /**
5003  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
5004  * @phba: Pointer to hba for which this call is being executed.
5005  *
5006  * This routine starts the timer waiting for the FCF rediscovery to complete.
5007  **/
5008 void
5009 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
5010 {
5011         unsigned long fcf_redisc_wait_tmo =
5012                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5013         /* Start fcf rediscovery wait period timer */
5014         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
5015         spin_lock_irq(&phba->hbalock);
5016         /* Allow action to new fcf asynchronous event */
5017         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5018         /* Mark the FCF rediscovery pending state */
5019         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5020         spin_unlock_irq(&phba->hbalock);
5021 }
5022
5023 /**
5024  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5025  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5026  *
5027  * This routine is invoked when waiting for FCF table rediscover has been
5028  * timed out. If new FCF record(s) has (have) been discovered during the
5029  * wait period, a new FCF event shall be added to the FCOE async event
5030  * list, and then worker thread shall be waked up for processing from the
5031  * worker thread context.
5032  **/
5033 static void
5034 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5035 {
5036         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5037
5038         /* Don't send FCF rediscovery event if timer cancelled */
5039         spin_lock_irq(&phba->hbalock);
5040         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5041                 spin_unlock_irq(&phba->hbalock);
5042                 return;
5043         }
5044         /* Clear FCF rediscovery timer pending flag */
5045         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5046         /* FCF rediscovery event to worker thread */
5047         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5048         spin_unlock_irq(&phba->hbalock);
5049         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5050                         "2776 FCF rediscover quiescent timer expired\n");
5051         /* wake up worker thread */
5052         lpfc_worker_wake_up(phba);
5053 }
5054
5055 /**
5056  * lpfc_vmid_poll - VMID timeout detection
5057  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5058  *
5059  * This routine is invoked when there is no I/O on by a VM for the specified
5060  * amount of time. When this situation is detected, the VMID has to be
5061  * deregistered from the switch and all the local resources freed. The VMID
5062  * will be reassigned to the VM once the I/O begins.
5063  **/
5064 static void
5065 lpfc_vmid_poll(struct timer_list *t)
5066 {
5067         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5068         u32 wake_up = 0;
5069
5070         /* check if there is a need to issue QFPA */
5071         if (phba->pport->vmid_priority_tagging) {
5072                 wake_up = 1;
5073                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5074         }
5075
5076         /* Is the vmid inactivity timer enabled */
5077         if (phba->pport->vmid_inactivity_timeout ||
5078             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5079                 wake_up = 1;
5080                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5081         }
5082
5083         if (wake_up)
5084                 lpfc_worker_wake_up(phba);
5085
5086         /* restart the timer for the next iteration */
5087         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5088                                                         LPFC_VMID_TIMER));
5089 }
5090
5091 /**
5092  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5093  * @phba: pointer to lpfc hba data structure.
5094  * @acqe_link: pointer to the async link completion queue entry.
5095  *
5096  * This routine is to parse the SLI4 link-attention link fault code.
5097  **/
5098 static void
5099 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5100                            struct lpfc_acqe_link *acqe_link)
5101 {
5102         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5103         case LPFC_ASYNC_LINK_FAULT_NONE:
5104         case LPFC_ASYNC_LINK_FAULT_LOCAL:
5105         case LPFC_ASYNC_LINK_FAULT_REMOTE:
5106         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5107                 break;
5108         default:
5109                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5110                                 "0398 Unknown link fault code: x%x\n",
5111                                 bf_get(lpfc_acqe_link_fault, acqe_link));
5112                 break;
5113         }
5114 }
5115
5116 /**
5117  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5118  * @phba: pointer to lpfc hba data structure.
5119  * @acqe_link: pointer to the async link completion queue entry.
5120  *
5121  * This routine is to parse the SLI4 link attention type and translate it
5122  * into the base driver's link attention type coding.
5123  *
5124  * Return: Link attention type in terms of base driver's coding.
5125  **/
5126 static uint8_t
5127 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5128                           struct lpfc_acqe_link *acqe_link)
5129 {
5130         uint8_t att_type;
5131
5132         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5133         case LPFC_ASYNC_LINK_STATUS_DOWN:
5134         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5135                 att_type = LPFC_ATT_LINK_DOWN;
5136                 break;
5137         case LPFC_ASYNC_LINK_STATUS_UP:
5138                 /* Ignore physical link up events - wait for logical link up */
5139                 att_type = LPFC_ATT_RESERVED;
5140                 break;
5141         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5142                 att_type = LPFC_ATT_LINK_UP;
5143                 break;
5144         default:
5145                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5146                                 "0399 Invalid link attention type: x%x\n",
5147                                 bf_get(lpfc_acqe_link_status, acqe_link));
5148                 att_type = LPFC_ATT_RESERVED;
5149                 break;
5150         }
5151         return att_type;
5152 }
5153
5154 /**
5155  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5156  * @phba: pointer to lpfc hba data structure.
5157  *
5158  * This routine is to get an SLI3 FC port's link speed in Mbps.
5159  *
5160  * Return: link speed in terms of Mbps.
5161  **/
5162 uint32_t
5163 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5164 {
5165         uint32_t link_speed;
5166
5167         if (!lpfc_is_link_up(phba))
5168                 return 0;
5169
5170         if (phba->sli_rev <= LPFC_SLI_REV3) {
5171                 switch (phba->fc_linkspeed) {
5172                 case LPFC_LINK_SPEED_1GHZ:
5173                         link_speed = 1000;
5174                         break;
5175                 case LPFC_LINK_SPEED_2GHZ:
5176                         link_speed = 2000;
5177                         break;
5178                 case LPFC_LINK_SPEED_4GHZ:
5179                         link_speed = 4000;
5180                         break;
5181                 case LPFC_LINK_SPEED_8GHZ:
5182                         link_speed = 8000;
5183                         break;
5184                 case LPFC_LINK_SPEED_10GHZ:
5185                         link_speed = 10000;
5186                         break;
5187                 case LPFC_LINK_SPEED_16GHZ:
5188                         link_speed = 16000;
5189                         break;
5190                 default:
5191                         link_speed = 0;
5192                 }
5193         } else {
5194                 if (phba->sli4_hba.link_state.logical_speed)
5195                         link_speed =
5196                               phba->sli4_hba.link_state.logical_speed;
5197                 else
5198                         link_speed = phba->sli4_hba.link_state.speed;
5199         }
5200         return link_speed;
5201 }
5202
5203 /**
5204  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5205  * @phba: pointer to lpfc hba data structure.
5206  * @evt_code: asynchronous event code.
5207  * @speed_code: asynchronous event link speed code.
5208  *
5209  * This routine is to parse the giving SLI4 async event link speed code into
5210  * value of Mbps for the link speed.
5211  *
5212  * Return: link speed in terms of Mbps.
5213  **/
5214 static uint32_t
5215 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5216                            uint8_t speed_code)
5217 {
5218         uint32_t port_speed;
5219
5220         switch (evt_code) {
5221         case LPFC_TRAILER_CODE_LINK:
5222                 switch (speed_code) {
5223                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5224                         port_speed = 0;
5225                         break;
5226                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5227                         port_speed = 10;
5228                         break;
5229                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5230                         port_speed = 100;
5231                         break;
5232                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5233                         port_speed = 1000;
5234                         break;
5235                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5236                         port_speed = 10000;
5237                         break;
5238                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5239                         port_speed = 20000;
5240                         break;
5241                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5242                         port_speed = 25000;
5243                         break;
5244                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5245                         port_speed = 40000;
5246                         break;
5247                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5248                         port_speed = 100000;
5249                         break;
5250                 default:
5251                         port_speed = 0;
5252                 }
5253                 break;
5254         case LPFC_TRAILER_CODE_FC:
5255                 switch (speed_code) {
5256                 case LPFC_FC_LA_SPEED_UNKNOWN:
5257                         port_speed = 0;
5258                         break;
5259                 case LPFC_FC_LA_SPEED_1G:
5260                         port_speed = 1000;
5261                         break;
5262                 case LPFC_FC_LA_SPEED_2G:
5263                         port_speed = 2000;
5264                         break;
5265                 case LPFC_FC_LA_SPEED_4G:
5266                         port_speed = 4000;
5267                         break;
5268                 case LPFC_FC_LA_SPEED_8G:
5269                         port_speed = 8000;
5270                         break;
5271                 case LPFC_FC_LA_SPEED_10G:
5272                         port_speed = 10000;
5273                         break;
5274                 case LPFC_FC_LA_SPEED_16G:
5275                         port_speed = 16000;
5276                         break;
5277                 case LPFC_FC_LA_SPEED_32G:
5278                         port_speed = 32000;
5279                         break;
5280                 case LPFC_FC_LA_SPEED_64G:
5281                         port_speed = 64000;
5282                         break;
5283                 case LPFC_FC_LA_SPEED_128G:
5284                         port_speed = 128000;
5285                         break;
5286                 case LPFC_FC_LA_SPEED_256G:
5287                         port_speed = 256000;
5288                         break;
5289                 default:
5290                         port_speed = 0;
5291                 }
5292                 break;
5293         default:
5294                 port_speed = 0;
5295         }
5296         return port_speed;
5297 }
5298
5299 /**
5300  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5301  * @phba: pointer to lpfc hba data structure.
5302  * @acqe_link: pointer to the async link completion queue entry.
5303  *
5304  * This routine is to handle the SLI4 asynchronous FCoE link event.
5305  **/
5306 static void
5307 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5308                          struct lpfc_acqe_link *acqe_link)
5309 {
5310         struct lpfc_dmabuf *mp;
5311         LPFC_MBOXQ_t *pmb;
5312         MAILBOX_t *mb;
5313         struct lpfc_mbx_read_top *la;
5314         uint8_t att_type;
5315         int rc;
5316
5317         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5318         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5319                 return;
5320         phba->fcoe_eventtag = acqe_link->event_tag;
5321         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5322         if (!pmb) {
5323                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5324                                 "0395 The mboxq allocation failed\n");
5325                 return;
5326         }
5327         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5328         if (!mp) {
5329                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5330                                 "0396 The lpfc_dmabuf allocation failed\n");
5331                 goto out_free_pmb;
5332         }
5333         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5334         if (!mp->virt) {
5335                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5336                                 "0397 The mbuf allocation failed\n");
5337                 goto out_free_dmabuf;
5338         }
5339
5340         /* Cleanup any outstanding ELS commands */
5341         lpfc_els_flush_all_cmd(phba);
5342
5343         /* Block ELS IOCBs until we have done process link event */
5344         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5345
5346         /* Update link event statistics */
5347         phba->sli.slistat.link_event++;
5348
5349         /* Create lpfc_handle_latt mailbox command from link ACQE */
5350         lpfc_read_topology(phba, pmb, mp);
5351         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5352         pmb->vport = phba->pport;
5353
5354         /* Keep the link status for extra SLI4 state machine reference */
5355         phba->sli4_hba.link_state.speed =
5356                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5357                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5358         phba->sli4_hba.link_state.duplex =
5359                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5360         phba->sli4_hba.link_state.status =
5361                                 bf_get(lpfc_acqe_link_status, acqe_link);
5362         phba->sli4_hba.link_state.type =
5363                                 bf_get(lpfc_acqe_link_type, acqe_link);
5364         phba->sli4_hba.link_state.number =
5365                                 bf_get(lpfc_acqe_link_number, acqe_link);
5366         phba->sli4_hba.link_state.fault =
5367                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5368         phba->sli4_hba.link_state.logical_speed =
5369                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5370
5371         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5372                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5373                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5374                         "Logical speed:%dMbps Fault:%d\n",
5375                         phba->sli4_hba.link_state.speed,
5376                         phba->sli4_hba.link_state.topology,
5377                         phba->sli4_hba.link_state.status,
5378                         phba->sli4_hba.link_state.type,
5379                         phba->sli4_hba.link_state.number,
5380                         phba->sli4_hba.link_state.logical_speed,
5381                         phba->sli4_hba.link_state.fault);
5382         /*
5383          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5384          * topology info. Note: Optional for non FC-AL ports.
5385          */
5386         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5387                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5388                 if (rc == MBX_NOT_FINISHED) {
5389                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
5390                         goto out_free_dmabuf;
5391                 }
5392                 return;
5393         }
5394         /*
5395          * For FCoE Mode: fill in all the topology information we need and call
5396          * the READ_TOPOLOGY completion routine to continue without actually
5397          * sending the READ_TOPOLOGY mailbox command to the port.
5398          */
5399         /* Initialize completion status */
5400         mb = &pmb->u.mb;
5401         mb->mbxStatus = MBX_SUCCESS;
5402
5403         /* Parse port fault information field */
5404         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5405
5406         /* Parse and translate link attention fields */
5407         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5408         la->eventTag = acqe_link->event_tag;
5409         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5410         bf_set(lpfc_mbx_read_top_link_spd, la,
5411                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5412
5413         /* Fake the the following irrelvant fields */
5414         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5415         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5416         bf_set(lpfc_mbx_read_top_il, la, 0);
5417         bf_set(lpfc_mbx_read_top_pb, la, 0);
5418         bf_set(lpfc_mbx_read_top_fa, la, 0);
5419         bf_set(lpfc_mbx_read_top_mm, la, 0);
5420
5421         /* Invoke the lpfc_handle_latt mailbox command callback function */
5422         lpfc_mbx_cmpl_read_topology(phba, pmb);
5423
5424         return;
5425
5426 out_free_dmabuf:
5427         kfree(mp);
5428 out_free_pmb:
5429         mempool_free(pmb, phba->mbox_mem_pool);
5430 }
5431
5432 /**
5433  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5434  * topology.
5435  * @phba: pointer to lpfc hba data structure.
5436  * @speed_code: asynchronous event link speed code.
5437  *
5438  * This routine is to parse the giving SLI4 async event link speed code into
5439  * value of Read topology link speed.
5440  *
5441  * Return: link speed in terms of Read topology.
5442  **/
5443 static uint8_t
5444 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5445 {
5446         uint8_t port_speed;
5447
5448         switch (speed_code) {
5449         case LPFC_FC_LA_SPEED_1G:
5450                 port_speed = LPFC_LINK_SPEED_1GHZ;
5451                 break;
5452         case LPFC_FC_LA_SPEED_2G:
5453                 port_speed = LPFC_LINK_SPEED_2GHZ;
5454                 break;
5455         case LPFC_FC_LA_SPEED_4G:
5456                 port_speed = LPFC_LINK_SPEED_4GHZ;
5457                 break;
5458         case LPFC_FC_LA_SPEED_8G:
5459                 port_speed = LPFC_LINK_SPEED_8GHZ;
5460                 break;
5461         case LPFC_FC_LA_SPEED_16G:
5462                 port_speed = LPFC_LINK_SPEED_16GHZ;
5463                 break;
5464         case LPFC_FC_LA_SPEED_32G:
5465                 port_speed = LPFC_LINK_SPEED_32GHZ;
5466                 break;
5467         case LPFC_FC_LA_SPEED_64G:
5468                 port_speed = LPFC_LINK_SPEED_64GHZ;
5469                 break;
5470         case LPFC_FC_LA_SPEED_128G:
5471                 port_speed = LPFC_LINK_SPEED_128GHZ;
5472                 break;
5473         case LPFC_FC_LA_SPEED_256G:
5474                 port_speed = LPFC_LINK_SPEED_256GHZ;
5475                 break;
5476         default:
5477                 port_speed = 0;
5478                 break;
5479         }
5480
5481         return port_speed;
5482 }
5483
5484 void
5485 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5486 {
5487         struct rxtable_entry *entry;
5488         int cnt = 0, head, tail, last, start;
5489
5490         head = atomic_read(&phba->rxtable_idx_head);
5491         tail = atomic_read(&phba->rxtable_idx_tail);
5492         if (!phba->rxtable || head == tail) {
5493                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5494                                 "4411 Rxtable is empty\n");
5495                 return;
5496         }
5497         last = tail;
5498         start = head;
5499
5500         /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5501         while (start != last) {
5502                 if (start)
5503                         start--;
5504                 else
5505                         start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5506                 entry = &phba->rxtable[start];
5507                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5508                                 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5509                                 "Lat %lld ASz %lld Info %02d BWUtil %d "
5510                                 "Int %d slot %d\n",
5511                                 cnt, entry->max_bytes_per_interval,
5512                                 entry->total_bytes, entry->rcv_bytes,
5513                                 entry->avg_io_latency, entry->avg_io_size,
5514                                 entry->cmf_info, entry->timer_utilization,
5515                                 entry->timer_interval, start);
5516                 cnt++;
5517                 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5518                         return;
5519         }
5520 }
5521
5522 /**
5523  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5524  * @phba: pointer to lpfc hba data structure.
5525  * @dtag: FPIN descriptor received
5526  *
5527  * Increment the FPIN received counter/time when it happens.
5528  */
5529 void
5530 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5531 {
5532         struct lpfc_cgn_info *cp;
5533         struct tm broken;
5534         struct timespec64 cur_time;
5535         u32 cnt;
5536         u16 value;
5537
5538         /* Make sure we have a congestion info buffer */
5539         if (!phba->cgn_i)
5540                 return;
5541         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5542         ktime_get_real_ts64(&cur_time);
5543         time64_to_tm(cur_time.tv_sec, 0, &broken);
5544
5545         /* Update congestion statistics */
5546         switch (dtag) {
5547         case ELS_DTAG_LNK_INTEGRITY:
5548                 cnt = le32_to_cpu(cp->link_integ_notification);
5549                 cnt++;
5550                 cp->link_integ_notification = cpu_to_le32(cnt);
5551
5552                 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5553                 cp->cgn_stat_lnk_day = broken.tm_mday;
5554                 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5555                 cp->cgn_stat_lnk_hour = broken.tm_hour;
5556                 cp->cgn_stat_lnk_min = broken.tm_min;
5557                 cp->cgn_stat_lnk_sec = broken.tm_sec;
5558                 break;
5559         case ELS_DTAG_DELIVERY:
5560                 cnt = le32_to_cpu(cp->delivery_notification);
5561                 cnt++;
5562                 cp->delivery_notification = cpu_to_le32(cnt);
5563
5564                 cp->cgn_stat_del_month = broken.tm_mon + 1;
5565                 cp->cgn_stat_del_day = broken.tm_mday;
5566                 cp->cgn_stat_del_year = broken.tm_year - 100;
5567                 cp->cgn_stat_del_hour = broken.tm_hour;
5568                 cp->cgn_stat_del_min = broken.tm_min;
5569                 cp->cgn_stat_del_sec = broken.tm_sec;
5570                 break;
5571         case ELS_DTAG_PEER_CONGEST:
5572                 cnt = le32_to_cpu(cp->cgn_peer_notification);
5573                 cnt++;
5574                 cp->cgn_peer_notification = cpu_to_le32(cnt);
5575
5576                 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5577                 cp->cgn_stat_peer_day = broken.tm_mday;
5578                 cp->cgn_stat_peer_year = broken.tm_year - 100;
5579                 cp->cgn_stat_peer_hour = broken.tm_hour;
5580                 cp->cgn_stat_peer_min = broken.tm_min;
5581                 cp->cgn_stat_peer_sec = broken.tm_sec;
5582                 break;
5583         case ELS_DTAG_CONGESTION:
5584                 cnt = le32_to_cpu(cp->cgn_notification);
5585                 cnt++;
5586                 cp->cgn_notification = cpu_to_le32(cnt);
5587
5588                 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5589                 cp->cgn_stat_cgn_day = broken.tm_mday;
5590                 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5591                 cp->cgn_stat_cgn_hour = broken.tm_hour;
5592                 cp->cgn_stat_cgn_min = broken.tm_min;
5593                 cp->cgn_stat_cgn_sec = broken.tm_sec;
5594         }
5595         if (phba->cgn_fpin_frequency &&
5596             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5597                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5598                 cp->cgn_stat_npm = value;
5599         }
5600         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5601                                     LPFC_CGN_CRC32_SEED);
5602         cp->cgn_info_crc = cpu_to_le32(value);
5603 }
5604
5605 /**
5606  * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5607  * @phba: pointer to lpfc hba data structure.
5608  *
5609  * Save the congestion event data every minute.
5610  * On the hour collapse all the minute data into hour data. Every day
5611  * collapse all the hour data into daily data. Separate driver
5612  * and fabrc congestion event counters that will be saved out
5613  * to the registered congestion buffer every minute.
5614  */
5615 static void
5616 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5617 {
5618         struct lpfc_cgn_info *cp;
5619         struct tm broken;
5620         struct timespec64 cur_time;
5621         uint32_t i, index;
5622         uint16_t value, mvalue;
5623         uint64_t bps;
5624         uint32_t mbps;
5625         uint32_t dvalue, wvalue, lvalue, avalue;
5626         uint64_t latsum;
5627         __le16 *ptr;
5628         __le32 *lptr;
5629         __le16 *mptr;
5630
5631         /* Make sure we have a congestion info buffer */
5632         if (!phba->cgn_i)
5633                 return;
5634         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5635
5636         if (time_before(jiffies, phba->cgn_evt_timestamp))
5637                 return;
5638         phba->cgn_evt_timestamp = jiffies +
5639                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5640         phba->cgn_evt_minute++;
5641
5642         /* We should get to this point in the routine on 1 minute intervals */
5643
5644         ktime_get_real_ts64(&cur_time);
5645         time64_to_tm(cur_time.tv_sec, 0, &broken);
5646
5647         if (phba->cgn_fpin_frequency &&
5648             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5649                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5650                 cp->cgn_stat_npm = value;
5651         }
5652
5653         /* Read and clear the latency counters for this minute */
5654         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5655         latsum = atomic64_read(&phba->cgn_latency_evt);
5656         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5657         atomic64_set(&phba->cgn_latency_evt, 0);
5658
5659         /* We need to store MB/sec bandwidth in the congestion information.
5660          * block_cnt is count of 512 byte blocks for the entire minute,
5661          * bps will get bytes per sec before finally converting to MB/sec.
5662          */
5663         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5664         phba->rx_block_cnt = 0;
5665         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5666
5667         /* Every minute */
5668         /* cgn parameters */
5669         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5670         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5671         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5672         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5673
5674         /* Fill in default LUN qdepth */
5675         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5676         cp->cgn_lunq = cpu_to_le16(value);
5677
5678         /* Record congestion buffer info - every minute
5679          * cgn_driver_evt_cnt (Driver events)
5680          * cgn_fabric_warn_cnt (Congestion Warnings)
5681          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5682          * cgn_fabric_alarm_cnt (Congestion Alarms)
5683          */
5684         index = ++cp->cgn_index_minute;
5685         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5686                 cp->cgn_index_minute = 0;
5687                 index = 0;
5688         }
5689
5690         /* Get the number of driver events in this sample and reset counter */
5691         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5692         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5693
5694         /* Get the number of warning events - FPIN and Signal for this minute */
5695         wvalue = 0;
5696         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5697             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5698             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5699                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5700         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5701
5702         /* Get the number of alarm events - FPIN and Signal for this minute */
5703         avalue = 0;
5704         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5705             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5706                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5707         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5708
5709         /* Collect the driver, warning, alarm and latency counts for this
5710          * minute into the driver congestion buffer.
5711          */
5712         ptr = &cp->cgn_drvr_min[index];
5713         value = (uint16_t)dvalue;
5714         *ptr = cpu_to_le16(value);
5715
5716         ptr = &cp->cgn_warn_min[index];
5717         value = (uint16_t)wvalue;
5718         *ptr = cpu_to_le16(value);
5719
5720         ptr = &cp->cgn_alarm_min[index];
5721         value = (uint16_t)avalue;
5722         *ptr = cpu_to_le16(value);
5723
5724         lptr = &cp->cgn_latency_min[index];
5725         if (lvalue) {
5726                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5727                 *lptr = cpu_to_le32(lvalue);
5728         } else {
5729                 *lptr = 0;
5730         }
5731
5732         /* Collect the bandwidth value into the driver's congesion buffer. */
5733         mptr = &cp->cgn_bw_min[index];
5734         *mptr = cpu_to_le16(mvalue);
5735
5736         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5737                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5738                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5739
5740         /* Every hour */
5741         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5742                 /* Record congestion buffer info - every hour
5743                  * Collapse all minutes into an hour
5744                  */
5745                 index = ++cp->cgn_index_hour;
5746                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5747                         cp->cgn_index_hour = 0;
5748                         index = 0;
5749                 }
5750
5751                 dvalue = 0;
5752                 wvalue = 0;
5753                 lvalue = 0;
5754                 avalue = 0;
5755                 mvalue = 0;
5756                 mbps = 0;
5757                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5758                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5759                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5760                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5761                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5762                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5763                 }
5764                 if (lvalue)             /* Avg of latency averages */
5765                         lvalue /= LPFC_MIN_HOUR;
5766                 if (mbps)               /* Avg of Bandwidth averages */
5767                         mvalue = mbps / LPFC_MIN_HOUR;
5768
5769                 lptr = &cp->cgn_drvr_hr[index];
5770                 *lptr = cpu_to_le32(dvalue);
5771                 lptr = &cp->cgn_warn_hr[index];
5772                 *lptr = cpu_to_le32(wvalue);
5773                 lptr = &cp->cgn_latency_hr[index];
5774                 *lptr = cpu_to_le32(lvalue);
5775                 mptr = &cp->cgn_bw_hr[index];
5776                 *mptr = cpu_to_le16(mvalue);
5777                 lptr = &cp->cgn_alarm_hr[index];
5778                 *lptr = cpu_to_le32(avalue);
5779
5780                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5781                                 "2419 Congestion Info - hour "
5782                                 "(%d): %d %d %d %d %d\n",
5783                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5784         }
5785
5786         /* Every day */
5787         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5788                 /* Record congestion buffer info - every hour
5789                  * Collapse all hours into a day. Rotate days
5790                  * after LPFC_MAX_CGN_DAYS.
5791                  */
5792                 index = ++cp->cgn_index_day;
5793                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5794                         cp->cgn_index_day = 0;
5795                         index = 0;
5796                 }
5797
5798                 /* Anytime we overwrite daily index 0, after we wrap,
5799                  * we will be overwriting the oldest day, so we must
5800                  * update the congestion data start time for that day.
5801                  * That start time should have previously been saved after
5802                  * we wrote the last days worth of data.
5803                  */
5804                 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5805                         time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5806
5807                         cp->cgn_info_month = broken.tm_mon + 1;
5808                         cp->cgn_info_day = broken.tm_mday;
5809                         cp->cgn_info_year = broken.tm_year - 100;
5810                         cp->cgn_info_hour = broken.tm_hour;
5811                         cp->cgn_info_minute = broken.tm_min;
5812                         cp->cgn_info_second = broken.tm_sec;
5813
5814                         lpfc_printf_log
5815                                 (phba, KERN_INFO, LOG_CGN_MGMT,
5816                                 "2646 CGNInfo idx0 Start Time: "
5817                                 "%d/%d/%d %d:%d:%d\n",
5818                                 cp->cgn_info_day, cp->cgn_info_month,
5819                                 cp->cgn_info_year, cp->cgn_info_hour,
5820                                 cp->cgn_info_minute, cp->cgn_info_second);
5821                 }
5822
5823                 dvalue = 0;
5824                 wvalue = 0;
5825                 lvalue = 0;
5826                 mvalue = 0;
5827                 mbps = 0;
5828                 avalue = 0;
5829                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5830                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5831                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5832                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5833                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5834                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5835                 }
5836                 if (lvalue)             /* Avg of latency averages */
5837                         lvalue /= LPFC_HOUR_DAY;
5838                 if (mbps)               /* Avg of Bandwidth averages */
5839                         mvalue = mbps / LPFC_HOUR_DAY;
5840
5841                 lptr = &cp->cgn_drvr_day[index];
5842                 *lptr = cpu_to_le32(dvalue);
5843                 lptr = &cp->cgn_warn_day[index];
5844                 *lptr = cpu_to_le32(wvalue);
5845                 lptr = &cp->cgn_latency_day[index];
5846                 *lptr = cpu_to_le32(lvalue);
5847                 mptr = &cp->cgn_bw_day[index];
5848                 *mptr = cpu_to_le16(mvalue);
5849                 lptr = &cp->cgn_alarm_day[index];
5850                 *lptr = cpu_to_le32(avalue);
5851
5852                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5853                                 "2420 Congestion Info - daily (%d): "
5854                                 "%d %d %d %d %d\n",
5855                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5856
5857                 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5858                  * so we are wrapped on any data after this.
5859                  * Save this as the start time for the next day.
5860                  */
5861                 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5862                         phba->hba_flag |= HBA_CGN_DAY_WRAP;
5863                         ktime_get_real_ts64(&phba->cgn_daily_ts);
5864                 }
5865         }
5866
5867         /* Use the frequency found in the last rcv'ed FPIN */
5868         value = phba->cgn_fpin_frequency;
5869         if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN)
5870                 cp->cgn_warn_freq = cpu_to_le16(value);
5871         if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM)
5872                 cp->cgn_alarm_freq = cpu_to_le16(value);
5873
5874         /* Frequency (in ms) Signal Warning/Signal Congestion Notifications
5875          * are received by the HBA
5876          */
5877         value = phba->cgn_sig_freq;
5878
5879         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5880             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5881                 cp->cgn_warn_freq = cpu_to_le16(value);
5882         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5883                 cp->cgn_alarm_freq = cpu_to_le16(value);
5884
5885         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5886                                      LPFC_CGN_CRC32_SEED);
5887         cp->cgn_info_crc = cpu_to_le32(lvalue);
5888 }
5889
5890 /**
5891  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5892  * @phba: The Hba for which this call is being executed.
5893  *
5894  * The routine calculates the latency from the beginning of the CMF timer
5895  * interval to the current point in time. It is called from IO completion
5896  * when we exceed our Bandwidth limitation for the time interval.
5897  */
5898 uint32_t
5899 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5900 {
5901         struct timespec64 cmpl_time;
5902         uint32_t msec = 0;
5903
5904         ktime_get_real_ts64(&cmpl_time);
5905
5906         /* This routine works on a ms granularity so sec and usec are
5907          * converted accordingly.
5908          */
5909         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5910                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5911                         NSEC_PER_MSEC;
5912         } else {
5913                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5914                         msec = (cmpl_time.tv_sec -
5915                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5916                         msec += ((cmpl_time.tv_nsec -
5917                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5918                 } else {
5919                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5920                                 1) * MSEC_PER_SEC;
5921                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5922                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5923                 }
5924         }
5925         return msec;
5926 }
5927
5928 /**
5929  * lpfc_cmf_timer -  This is the timer function for one congestion
5930  * rate interval.
5931  * @timer: Pointer to the high resolution timer that expired
5932  */
5933 static enum hrtimer_restart
5934 lpfc_cmf_timer(struct hrtimer *timer)
5935 {
5936         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5937                                              cmf_timer);
5938         struct rxtable_entry *entry;
5939         uint32_t io_cnt;
5940         uint32_t head, tail;
5941         uint32_t busy, max_read;
5942         uint64_t total, rcv, lat, mbpi, extra, cnt;
5943         int timer_interval = LPFC_CMF_INTERVAL;
5944         uint32_t ms;
5945         struct lpfc_cgn_stat *cgs;
5946         int cpu;
5947
5948         /* Only restart the timer if congestion mgmt is on */
5949         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5950             !phba->cmf_latency.tv_sec) {
5951                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5952                                 "6224 CMF timer exit: %d %lld\n",
5953                                 phba->cmf_active_mode,
5954                                 (uint64_t)phba->cmf_latency.tv_sec);
5955                 return HRTIMER_NORESTART;
5956         }
5957
5958         /* If pport is not ready yet, just exit and wait for
5959          * the next timer cycle to hit.
5960          */
5961         if (!phba->pport)
5962                 goto skip;
5963
5964         /* Do not block SCSI IO while in the timer routine since
5965          * total_bytes will be cleared
5966          */
5967         atomic_set(&phba->cmf_stop_io, 1);
5968
5969         /* First we need to calculate the actual ms between
5970          * the last timer interrupt and this one. We ask for
5971          * LPFC_CMF_INTERVAL, however the actual time may
5972          * vary depending on system overhead.
5973          */
5974         ms = lpfc_calc_cmf_latency(phba);
5975
5976
5977         /* Immediately after we calculate the time since the last
5978          * timer interrupt, set the start time for the next
5979          * interrupt
5980          */
5981         ktime_get_real_ts64(&phba->cmf_latency);
5982
5983         phba->cmf_link_byte_count =
5984                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5985
5986         /* Collect all the stats from the prior timer interval */
5987         total = 0;
5988         io_cnt = 0;
5989         lat = 0;
5990         rcv = 0;
5991         for_each_present_cpu(cpu) {
5992                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5993                 total += atomic64_xchg(&cgs->total_bytes, 0);
5994                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5995                 lat += atomic64_xchg(&cgs->rx_latency, 0);
5996                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5997         }
5998
5999         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
6000          * returned from the last CMF_SYNC_WQE issued, from
6001          * cmf_last_sync_bw. This will be the target BW for
6002          * this next timer interval.
6003          */
6004         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
6005             phba->link_state != LPFC_LINK_DOWN &&
6006             phba->hba_flag & HBA_SETUP) {
6007                 mbpi = phba->cmf_last_sync_bw;
6008                 phba->cmf_last_sync_bw = 0;
6009                 extra = 0;
6010
6011                 /* Calculate any extra bytes needed to account for the
6012                  * timer accuracy. If we are less than LPFC_CMF_INTERVAL
6013                  * calculate the adjustment needed for total to reflect
6014                  * a full LPFC_CMF_INTERVAL.
6015                  */
6016                 if (ms && ms < LPFC_CMF_INTERVAL) {
6017                         cnt = div_u64(total, ms); /* bytes per ms */
6018                         cnt *= LPFC_CMF_INTERVAL; /* what total should be */
6019
6020                         /* If the timeout is scheduled to be shorter,
6021                          * this value may skew the data, so cap it at mbpi.
6022                          */
6023                         if ((phba->hba_flag & HBA_SHORT_CMF) && cnt > mbpi)
6024                                 cnt = mbpi;
6025
6026                         extra = cnt - total;
6027                 }
6028                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6029         } else {
6030                 /* For Monitor mode or link down we want mbpi
6031                  * to be the full link speed
6032                  */
6033                 mbpi = phba->cmf_link_byte_count;
6034                 extra = 0;
6035         }
6036         phba->cmf_timer_cnt++;
6037
6038         if (io_cnt) {
6039                 /* Update congestion info buffer latency in us */
6040                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6041                 atomic64_add(lat, &phba->cgn_latency_evt);
6042         }
6043         busy = atomic_xchg(&phba->cmf_busy, 0);
6044         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6045
6046         /* Calculate MBPI for the next timer interval */
6047         if (mbpi) {
6048                 if (mbpi > phba->cmf_link_byte_count ||
6049                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
6050                         mbpi = phba->cmf_link_byte_count;
6051
6052                 /* Change max_bytes_per_interval to what the prior
6053                  * CMF_SYNC_WQE cmpl indicated.
6054                  */
6055                 if (mbpi != phba->cmf_max_bytes_per_interval)
6056                         phba->cmf_max_bytes_per_interval = mbpi;
6057         }
6058
6059         /* Save rxmonitor information for debug */
6060         if (phba->rxtable) {
6061                 head = atomic_xchg(&phba->rxtable_idx_head,
6062                                    LPFC_RXMONITOR_TABLE_IN_USE);
6063                 entry = &phba->rxtable[head];
6064                 entry->total_bytes = total;
6065                 entry->cmf_bytes = total + extra;
6066                 entry->rcv_bytes = rcv;
6067                 entry->cmf_busy = busy;
6068                 entry->cmf_info = phba->cmf_active_info;
6069                 if (io_cnt) {
6070                         entry->avg_io_latency = div_u64(lat, io_cnt);
6071                         entry->avg_io_size = div_u64(rcv, io_cnt);
6072                 } else {
6073                         entry->avg_io_latency = 0;
6074                         entry->avg_io_size = 0;
6075                 }
6076                 entry->max_read_cnt = max_read;
6077                 entry->io_cnt = io_cnt;
6078                 entry->max_bytes_per_interval = mbpi;
6079                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6080                         entry->timer_utilization = phba->cmf_last_ts;
6081                 else
6082                         entry->timer_utilization = ms;
6083                 entry->timer_interval = ms;
6084                 phba->cmf_last_ts = 0;
6085
6086                 /* Increment rxtable index */
6087                 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6088                 tail = atomic_read(&phba->rxtable_idx_tail);
6089                 if (head == tail) {
6090                         tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6091                         atomic_set(&phba->rxtable_idx_tail, tail);
6092                 }
6093                 atomic_set(&phba->rxtable_idx_head, head);
6094         }
6095
6096         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6097                 /* If Monitor mode, check if we are oversubscribed
6098                  * against the full line rate.
6099                  */
6100                 if (mbpi && total > mbpi)
6101                         atomic_inc(&phba->cgn_driver_evt_cnt);
6102         }
6103         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
6104
6105         /* Each minute save Fabric and Driver congestion information */
6106         lpfc_cgn_save_evt_cnt(phba);
6107
6108         phba->hba_flag &= ~HBA_SHORT_CMF;
6109
6110         /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6111          * minute, adjust our next timer interval, if needed, to ensure a
6112          * 1 minute granularity when we get the next timer interrupt.
6113          */
6114         if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6115                        phba->cgn_evt_timestamp)) {
6116                 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6117                                                   jiffies);
6118                 if (timer_interval <= 0)
6119                         timer_interval = LPFC_CMF_INTERVAL;
6120                 else
6121                         phba->hba_flag |= HBA_SHORT_CMF;
6122
6123                 /* If we adjust timer_interval, max_bytes_per_interval
6124                  * needs to be adjusted as well.
6125                  */
6126                 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6127                                                     timer_interval, 1000);
6128                 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6129                         phba->cmf_max_bytes_per_interval =
6130                                 phba->cmf_link_byte_count;
6131         }
6132
6133         /* Since total_bytes has already been zero'ed, its okay to unblock
6134          * after max_bytes_per_interval is setup.
6135          */
6136         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6137                 queue_work(phba->wq, &phba->unblock_request_work);
6138
6139         /* SCSI IO is now unblocked */
6140         atomic_set(&phba->cmf_stop_io, 0);
6141
6142 skip:
6143         hrtimer_forward_now(timer,
6144                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6145         return HRTIMER_RESTART;
6146 }
6147
6148 #define trunk_link_status(__idx)\
6149         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6150                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6151                 "Link up" : "Link down") : "NA"
6152 /* Did port __idx reported an error */
6153 #define trunk_port_fault(__idx)\
6154         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6155                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6156
6157 static void
6158 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6159                               struct lpfc_acqe_fc_la *acqe_fc)
6160 {
6161         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6162         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6163
6164         phba->sli4_hba.link_state.speed =
6165                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6166                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6167
6168         phba->sli4_hba.link_state.logical_speed =
6169                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6170         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6171         phba->fc_linkspeed =
6172                  lpfc_async_link_speed_to_read_top(
6173                                 phba,
6174                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6175
6176         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6177                 phba->trunk_link.link0.state =
6178                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6179                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6180                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6181         }
6182         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6183                 phba->trunk_link.link1.state =
6184                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6185                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6186                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6187         }
6188         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6189                 phba->trunk_link.link2.state =
6190                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6191                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6192                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6193         }
6194         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6195                 phba->trunk_link.link3.state =
6196                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6197                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6198                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6199         }
6200
6201         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6202                         "2910 Async FC Trunking Event - Speed:%d\n"
6203                         "\tLogical speed:%d "
6204                         "port0: %s port1: %s port2: %s port3: %s\n",
6205                         phba->sli4_hba.link_state.speed,
6206                         phba->sli4_hba.link_state.logical_speed,
6207                         trunk_link_status(0), trunk_link_status(1),
6208                         trunk_link_status(2), trunk_link_status(3));
6209
6210         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6211                 lpfc_cmf_signal_init(phba);
6212
6213         if (port_fault)
6214                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6215                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6216                                 /*
6217                                  * SLI-4: We have only 0xA error codes
6218                                  * defined as of now. print an appropriate
6219                                  * message in case driver needs to be updated.
6220                                  */
6221                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6222                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6223                                 trunk_port_fault(0), trunk_port_fault(1),
6224                                 trunk_port_fault(2), trunk_port_fault(3));
6225 }
6226
6227
6228 /**
6229  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6230  * @phba: pointer to lpfc hba data structure.
6231  * @acqe_fc: pointer to the async fc completion queue entry.
6232  *
6233  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6234  * that the event was received and then issue a read_topology mailbox command so
6235  * that the rest of the driver will treat it the same as SLI3.
6236  **/
6237 static void
6238 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6239 {
6240         struct lpfc_dmabuf *mp;
6241         LPFC_MBOXQ_t *pmb;
6242         MAILBOX_t *mb;
6243         struct lpfc_mbx_read_top *la;
6244         int rc;
6245
6246         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6247             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6248                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6249                                 "2895 Non FC link Event detected.(%d)\n",
6250                                 bf_get(lpfc_trailer_type, acqe_fc));
6251                 return;
6252         }
6253
6254         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6255             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6256                 lpfc_update_trunk_link_status(phba, acqe_fc);
6257                 return;
6258         }
6259
6260         /* Keep the link status for extra SLI4 state machine reference */
6261         phba->sli4_hba.link_state.speed =
6262                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6263                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6264         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6265         phba->sli4_hba.link_state.topology =
6266                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6267         phba->sli4_hba.link_state.status =
6268                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6269         phba->sli4_hba.link_state.type =
6270                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6271         phba->sli4_hba.link_state.number =
6272                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6273         phba->sli4_hba.link_state.fault =
6274                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6275
6276         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6277             LPFC_FC_LA_TYPE_LINK_DOWN)
6278                 phba->sli4_hba.link_state.logical_speed = 0;
6279         else if (!phba->sli4_hba.conf_trunk)
6280                 phba->sli4_hba.link_state.logical_speed =
6281                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6282
6283         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6284                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6285                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6286                         "%dMbps Fault:%d\n",
6287                         phba->sli4_hba.link_state.speed,
6288                         phba->sli4_hba.link_state.topology,
6289                         phba->sli4_hba.link_state.status,
6290                         phba->sli4_hba.link_state.type,
6291                         phba->sli4_hba.link_state.number,
6292                         phba->sli4_hba.link_state.logical_speed,
6293                         phba->sli4_hba.link_state.fault);
6294         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6295         if (!pmb) {
6296                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6297                                 "2897 The mboxq allocation failed\n");
6298                 return;
6299         }
6300         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6301         if (!mp) {
6302                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6303                                 "2898 The lpfc_dmabuf allocation failed\n");
6304                 goto out_free_pmb;
6305         }
6306         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6307         if (!mp->virt) {
6308                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6309                                 "2899 The mbuf allocation failed\n");
6310                 goto out_free_dmabuf;
6311         }
6312
6313         /* Cleanup any outstanding ELS commands */
6314         lpfc_els_flush_all_cmd(phba);
6315
6316         /* Block ELS IOCBs until we have done process link event */
6317         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6318
6319         /* Update link event statistics */
6320         phba->sli.slistat.link_event++;
6321
6322         /* Create lpfc_handle_latt mailbox command from link ACQE */
6323         lpfc_read_topology(phba, pmb, mp);
6324         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6325         pmb->vport = phba->pport;
6326
6327         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6328                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6329
6330                 switch (phba->sli4_hba.link_state.status) {
6331                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6332                         phba->link_flag |= LS_MDS_LINK_DOWN;
6333                         break;
6334                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6335                         phba->link_flag |= LS_MDS_LOOPBACK;
6336                         break;
6337                 default:
6338                         break;
6339                 }
6340
6341                 /* Initialize completion status */
6342                 mb = &pmb->u.mb;
6343                 mb->mbxStatus = MBX_SUCCESS;
6344
6345                 /* Parse port fault information field */
6346                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6347
6348                 /* Parse and translate link attention fields */
6349                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6350                 la->eventTag = acqe_fc->event_tag;
6351
6352                 if (phba->sli4_hba.link_state.status ==
6353                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6354                         bf_set(lpfc_mbx_read_top_att_type, la,
6355                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6356                 } else {
6357                         bf_set(lpfc_mbx_read_top_att_type, la,
6358                                LPFC_FC_LA_TYPE_LINK_DOWN);
6359                 }
6360                 /* Invoke the mailbox command callback function */
6361                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6362
6363                 return;
6364         }
6365
6366         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6367         if (rc == MBX_NOT_FINISHED) {
6368                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6369                 goto out_free_dmabuf;
6370         }
6371         return;
6372
6373 out_free_dmabuf:
6374         kfree(mp);
6375 out_free_pmb:
6376         mempool_free(pmb, phba->mbox_mem_pool);
6377 }
6378
6379 /**
6380  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6381  * @phba: pointer to lpfc hba data structure.
6382  * @acqe_sli: pointer to the async SLI completion queue entry.
6383  *
6384  * This routine is to handle the SLI4 asynchronous SLI events.
6385  **/
6386 static void
6387 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6388 {
6389         char port_name;
6390         char message[128];
6391         uint8_t status;
6392         uint8_t evt_type;
6393         uint8_t operational = 0;
6394         struct temp_event temp_event_data;
6395         struct lpfc_acqe_misconfigured_event *misconfigured;
6396         struct lpfc_acqe_cgn_signal *cgn_signal;
6397         struct Scsi_Host  *shost;
6398         struct lpfc_vport **vports;
6399         int rc, i, cnt;
6400
6401         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6402
6403         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6404                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6405                         "x%08x x%08x x%08x\n", evt_type,
6406                         acqe_sli->event_data1, acqe_sli->event_data2,
6407                         acqe_sli->reserved, acqe_sli->trailer);
6408
6409         port_name = phba->Port[0];
6410         if (port_name == 0x00)
6411                 port_name = '?'; /* get port name is empty */
6412
6413         switch (evt_type) {
6414         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6415                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6416                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6417                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6418
6419                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6420                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6421                                 acqe_sli->event_data1, port_name);
6422
6423                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6424                 shost = lpfc_shost_from_vport(phba->pport);
6425                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6426                                           sizeof(temp_event_data),
6427                                           (char *)&temp_event_data,
6428                                           SCSI_NL_VID_TYPE_PCI
6429                                           | PCI_VENDOR_ID_EMULEX);
6430                 break;
6431         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6432                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6433                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6434                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6435
6436                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6437                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6438                                 acqe_sli->event_data1, port_name);
6439
6440                 shost = lpfc_shost_from_vport(phba->pport);
6441                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6442                                           sizeof(temp_event_data),
6443                                           (char *)&temp_event_data,
6444                                           SCSI_NL_VID_TYPE_PCI
6445                                           | PCI_VENDOR_ID_EMULEX);
6446                 break;
6447         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6448                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6449                                         &acqe_sli->event_data1;
6450
6451                 /* fetch the status for this port */
6452                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6453                 case LPFC_LINK_NUMBER_0:
6454                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6455                                         &misconfigured->theEvent);
6456                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6457                                         &misconfigured->theEvent);
6458                         break;
6459                 case LPFC_LINK_NUMBER_1:
6460                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6461                                         &misconfigured->theEvent);
6462                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6463                                         &misconfigured->theEvent);
6464                         break;
6465                 case LPFC_LINK_NUMBER_2:
6466                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6467                                         &misconfigured->theEvent);
6468                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6469                                         &misconfigured->theEvent);
6470                         break;
6471                 case LPFC_LINK_NUMBER_3:
6472                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6473                                         &misconfigured->theEvent);
6474                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6475                                         &misconfigured->theEvent);
6476                         break;
6477                 default:
6478                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6479                                         "3296 "
6480                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6481                                         "event: Invalid link %d",
6482                                         phba->sli4_hba.lnk_info.lnk_no);
6483                         return;
6484                 }
6485
6486                 /* Skip if optic state unchanged */
6487                 if (phba->sli4_hba.lnk_info.optic_state == status)
6488                         return;
6489
6490                 switch (status) {
6491                 case LPFC_SLI_EVENT_STATUS_VALID:
6492                         sprintf(message, "Physical Link is functional");
6493                         break;
6494                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6495                         sprintf(message, "Optics faulted/incorrectly "
6496                                 "installed/not installed - Reseat optics, "
6497                                 "if issue not resolved, replace.");
6498                         break;
6499                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6500                         sprintf(message,
6501                                 "Optics of two types installed - Remove one "
6502                                 "optic or install matching pair of optics.");
6503                         break;
6504                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6505                         sprintf(message, "Incompatible optics - Replace with "
6506                                 "compatible optics for card to function.");
6507                         break;
6508                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6509                         sprintf(message, "Unqualified optics - Replace with "
6510                                 "Avago optics for Warranty and Technical "
6511                                 "Support - Link is%s operational",
6512                                 (operational) ? " not" : "");
6513                         break;
6514                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6515                         sprintf(message, "Uncertified optics - Replace with "
6516                                 "Avago-certified optics to enable link "
6517                                 "operation - Link is%s operational",
6518                                 (operational) ? " not" : "");
6519                         break;
6520                 default:
6521                         /* firmware is reporting a status we don't know about */
6522                         sprintf(message, "Unknown event status x%02x", status);
6523                         break;
6524                 }
6525
6526                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6527                 rc = lpfc_sli4_read_config(phba);
6528                 if (rc) {
6529                         phba->lmt = 0;
6530                         lpfc_printf_log(phba, KERN_ERR,
6531                                         LOG_TRACE_EVENT,
6532                                         "3194 Unable to retrieve supported "
6533                                         "speeds, rc = 0x%x\n", rc);
6534                 }
6535                 rc = lpfc_sli4_refresh_params(phba);
6536                 if (rc) {
6537                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6538                                         "3174 Unable to update pls support, "
6539                                         "rc x%x\n", rc);
6540                 }
6541                 vports = lpfc_create_vport_work_array(phba);
6542                 if (vports != NULL) {
6543                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6544                                         i++) {
6545                                 shost = lpfc_shost_from_vport(vports[i]);
6546                                 lpfc_host_supported_speeds_set(shost);
6547                         }
6548                 }
6549                 lpfc_destroy_vport_work_array(phba, vports);
6550
6551                 phba->sli4_hba.lnk_info.optic_state = status;
6552                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6553                                 "3176 Port Name %c %s\n", port_name, message);
6554                 break;
6555         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6556                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6557                                 "3192 Remote DPort Test Initiated - "
6558                                 "Event Data1:x%08x Event Data2: x%08x\n",
6559                                 acqe_sli->event_data1, acqe_sli->event_data2);
6560                 break;
6561         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6562                 /* Call FW to obtain active parms */
6563                 lpfc_sli4_cgn_parm_chg_evt(phba);
6564                 break;
6565         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6566                 /* Misconfigured WWN. Reports that the SLI Port is configured
6567                  * to use FA-WWN, but the attached device doesn’t support it.
6568                  * No driver action is required.
6569                  * Event Data1 - N.A, Event Data2 - N.A
6570                  */
6571                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6572                              "2699 Misconfigured FA-WWN - Attached device does "
6573                              "not support FA-WWN\n");
6574                 break;
6575         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6576                 /* EEPROM failure. No driver action is required */
6577                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6578                              "2518 EEPROM failure - "
6579                              "Event Data1: x%08x Event Data2: x%08x\n",
6580                              acqe_sli->event_data1, acqe_sli->event_data2);
6581                 break;
6582         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6583                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6584                         break;
6585                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6586                                         &acqe_sli->event_data1;
6587                 phba->cgn_acqe_cnt++;
6588
6589                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6590                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6591                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6592
6593                 /* no threshold for CMF, even 1 signal will trigger an event */
6594
6595                 /* Alarm overrides warning, so check that first */
6596                 if (cgn_signal->alarm_cnt) {
6597                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6598                                 /* Keep track of alarm cnt for cgn_info */
6599                                 atomic_add(cgn_signal->alarm_cnt,
6600                                            &phba->cgn_fabric_alarm_cnt);
6601                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6602                                 atomic_add(cgn_signal->alarm_cnt,
6603                                            &phba->cgn_sync_alarm_cnt);
6604                         }
6605                 } else if (cnt) {
6606                         /* signal action needs to be taken */
6607                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6608                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6609                                 /* Keep track of warning cnt for cgn_info */
6610                                 atomic_add(cnt, &phba->cgn_fabric_warn_cnt);
6611                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6612                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6613                         }
6614                 }
6615                 break;
6616         default:
6617                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6618                                 "3193 Unrecognized SLI event, type: 0x%x",
6619                                 evt_type);
6620                 break;
6621         }
6622 }
6623
6624 /**
6625  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6626  * @vport: pointer to vport data structure.
6627  *
6628  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6629  * response to a CVL event.
6630  *
6631  * Return the pointer to the ndlp with the vport if successful, otherwise
6632  * return NULL.
6633  **/
6634 static struct lpfc_nodelist *
6635 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6636 {
6637         struct lpfc_nodelist *ndlp;
6638         struct Scsi_Host *shost;
6639         struct lpfc_hba *phba;
6640
6641         if (!vport)
6642                 return NULL;
6643         phba = vport->phba;
6644         if (!phba)
6645                 return NULL;
6646         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6647         if (!ndlp) {
6648                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6649                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6650                 if (!ndlp)
6651                         return NULL;
6652                 /* Set the node type */
6653                 ndlp->nlp_type |= NLP_FABRIC;
6654                 /* Put ndlp onto node list */
6655                 lpfc_enqueue_node(vport, ndlp);
6656         }
6657         if ((phba->pport->port_state < LPFC_FLOGI) &&
6658                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6659                 return NULL;
6660         /* If virtual link is not yet instantiated ignore CVL */
6661         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6662                 && (vport->port_state != LPFC_VPORT_FAILED))
6663                 return NULL;
6664         shost = lpfc_shost_from_vport(vport);
6665         if (!shost)
6666                 return NULL;
6667         lpfc_linkdown_port(vport);
6668         lpfc_cleanup_pending_mbox(vport);
6669         spin_lock_irq(shost->host_lock);
6670         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6671         spin_unlock_irq(shost->host_lock);
6672
6673         return ndlp;
6674 }
6675
6676 /**
6677  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6678  * @phba: pointer to lpfc hba data structure.
6679  *
6680  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6681  * response to a FCF dead event.
6682  **/
6683 static void
6684 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6685 {
6686         struct lpfc_vport **vports;
6687         int i;
6688
6689         vports = lpfc_create_vport_work_array(phba);
6690         if (vports)
6691                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6692                         lpfc_sli4_perform_vport_cvl(vports[i]);
6693         lpfc_destroy_vport_work_array(phba, vports);
6694 }
6695
6696 /**
6697  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6698  * @phba: pointer to lpfc hba data structure.
6699  * @acqe_fip: pointer to the async fcoe completion queue entry.
6700  *
6701  * This routine is to handle the SLI4 asynchronous fcoe event.
6702  **/
6703 static void
6704 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6705                         struct lpfc_acqe_fip *acqe_fip)
6706 {
6707         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6708         int rc;
6709         struct lpfc_vport *vport;
6710         struct lpfc_nodelist *ndlp;
6711         int active_vlink_present;
6712         struct lpfc_vport **vports;
6713         int i;
6714
6715         phba->fc_eventTag = acqe_fip->event_tag;
6716         phba->fcoe_eventtag = acqe_fip->event_tag;
6717         switch (event_type) {
6718         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6719         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6720                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6721                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6722                                         "2546 New FCF event, evt_tag:x%x, "
6723                                         "index:x%x\n",
6724                                         acqe_fip->event_tag,
6725                                         acqe_fip->index);
6726                 else
6727                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6728                                         LOG_DISCOVERY,
6729                                         "2788 FCF param modified event, "
6730                                         "evt_tag:x%x, index:x%x\n",
6731                                         acqe_fip->event_tag,
6732                                         acqe_fip->index);
6733                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6734                         /*
6735                          * During period of FCF discovery, read the FCF
6736                          * table record indexed by the event to update
6737                          * FCF roundrobin failover eligible FCF bmask.
6738                          */
6739                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6740                                         LOG_DISCOVERY,
6741                                         "2779 Read FCF (x%x) for updating "
6742                                         "roundrobin FCF failover bmask\n",
6743                                         acqe_fip->index);
6744                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6745                 }
6746
6747                 /* If the FCF discovery is in progress, do nothing. */
6748                 spin_lock_irq(&phba->hbalock);
6749                 if (phba->hba_flag & FCF_TS_INPROG) {
6750                         spin_unlock_irq(&phba->hbalock);
6751                         break;
6752                 }
6753                 /* If fast FCF failover rescan event is pending, do nothing */
6754                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6755                         spin_unlock_irq(&phba->hbalock);
6756                         break;
6757                 }
6758
6759                 /* If the FCF has been in discovered state, do nothing. */
6760                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6761                         spin_unlock_irq(&phba->hbalock);
6762                         break;
6763                 }
6764                 spin_unlock_irq(&phba->hbalock);
6765
6766                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6767                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6768                                 "2770 Start FCF table scan per async FCF "
6769                                 "event, evt_tag:x%x, index:x%x\n",
6770                                 acqe_fip->event_tag, acqe_fip->index);
6771                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6772                                                      LPFC_FCOE_FCF_GET_FIRST);
6773                 if (rc)
6774                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6775                                         "2547 Issue FCF scan read FCF mailbox "
6776                                         "command failed (x%x)\n", rc);
6777                 break;
6778
6779         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6780                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6781                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6782                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6783                                 acqe_fip->event_tag);
6784                 break;
6785
6786         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6787                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6788                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6789                                 "2549 FCF (x%x) disconnected from network, "
6790                                  "tag:x%x\n", acqe_fip->index,
6791                                  acqe_fip->event_tag);
6792                 /*
6793                  * If we are in the middle of FCF failover process, clear
6794                  * the corresponding FCF bit in the roundrobin bitmap.
6795                  */
6796                 spin_lock_irq(&phba->hbalock);
6797                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6798                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6799                         spin_unlock_irq(&phba->hbalock);
6800                         /* Update FLOGI FCF failover eligible FCF bmask */
6801                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6802                         break;
6803                 }
6804                 spin_unlock_irq(&phba->hbalock);
6805
6806                 /* If the event is not for currently used fcf do nothing */
6807                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6808                         break;
6809
6810                 /*
6811                  * Otherwise, request the port to rediscover the entire FCF
6812                  * table for a fast recovery from case that the current FCF
6813                  * is no longer valid as we are not in the middle of FCF
6814                  * failover process already.
6815                  */
6816                 spin_lock_irq(&phba->hbalock);
6817                 /* Mark the fast failover process in progress */
6818                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6819                 spin_unlock_irq(&phba->hbalock);
6820
6821                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6822                                 "2771 Start FCF fast failover process due to "
6823                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6824                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6825                 rc = lpfc_sli4_redisc_fcf_table(phba);
6826                 if (rc) {
6827                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6828                                         LOG_TRACE_EVENT,
6829                                         "2772 Issue FCF rediscover mailbox "
6830                                         "command failed, fail through to FCF "
6831                                         "dead event\n");
6832                         spin_lock_irq(&phba->hbalock);
6833                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6834                         spin_unlock_irq(&phba->hbalock);
6835                         /*
6836                          * Last resort will fail over by treating this
6837                          * as a link down to FCF registration.
6838                          */
6839                         lpfc_sli4_fcf_dead_failthrough(phba);
6840                 } else {
6841                         /* Reset FCF roundrobin bmask for new discovery */
6842                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6843                         /*
6844                          * Handling fast FCF failover to a DEAD FCF event is
6845                          * considered equalivant to receiving CVL to all vports.
6846                          */
6847                         lpfc_sli4_perform_all_vport_cvl(phba);
6848                 }
6849                 break;
6850         case LPFC_FIP_EVENT_TYPE_CVL:
6851                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6852                 lpfc_printf_log(phba, KERN_ERR,
6853                                 LOG_TRACE_EVENT,
6854                         "2718 Clear Virtual Link Received for VPI 0x%x"
6855                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6856
6857                 vport = lpfc_find_vport_by_vpid(phba,
6858                                                 acqe_fip->index);
6859                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6860                 if (!ndlp)
6861                         break;
6862                 active_vlink_present = 0;
6863
6864                 vports = lpfc_create_vport_work_array(phba);
6865                 if (vports) {
6866                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6867                                         i++) {
6868                                 if ((!(vports[i]->fc_flag &
6869                                         FC_VPORT_CVL_RCVD)) &&
6870                                         (vports[i]->port_state > LPFC_FDISC)) {
6871                                         active_vlink_present = 1;
6872                                         break;
6873                                 }
6874                         }
6875                         lpfc_destroy_vport_work_array(phba, vports);
6876                 }
6877
6878                 /*
6879                  * Don't re-instantiate if vport is marked for deletion.
6880                  * If we are here first then vport_delete is going to wait
6881                  * for discovery to complete.
6882                  */
6883                 if (!(vport->load_flag & FC_UNLOADING) &&
6884                                         active_vlink_present) {
6885                         /*
6886                          * If there are other active VLinks present,
6887                          * re-instantiate the Vlink using FDISC.
6888                          */
6889                         mod_timer(&ndlp->nlp_delayfunc,
6890                                   jiffies + msecs_to_jiffies(1000));
6891                         spin_lock_irq(&ndlp->lock);
6892                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6893                         spin_unlock_irq(&ndlp->lock);
6894                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6895                         vport->port_state = LPFC_FDISC;
6896                 } else {
6897                         /*
6898                          * Otherwise, we request port to rediscover
6899                          * the entire FCF table for a fast recovery
6900                          * from possible case that the current FCF
6901                          * is no longer valid if we are not already
6902                          * in the FCF failover process.
6903                          */
6904                         spin_lock_irq(&phba->hbalock);
6905                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6906                                 spin_unlock_irq(&phba->hbalock);
6907                                 break;
6908                         }
6909                         /* Mark the fast failover process in progress */
6910                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6911                         spin_unlock_irq(&phba->hbalock);
6912                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6913                                         LOG_DISCOVERY,
6914                                         "2773 Start FCF failover per CVL, "
6915                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6916                         rc = lpfc_sli4_redisc_fcf_table(phba);
6917                         if (rc) {
6918                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6919                                                 LOG_TRACE_EVENT,
6920                                                 "2774 Issue FCF rediscover "
6921                                                 "mailbox command failed, "
6922                                                 "through to CVL event\n");
6923                                 spin_lock_irq(&phba->hbalock);
6924                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6925                                 spin_unlock_irq(&phba->hbalock);
6926                                 /*
6927                                  * Last resort will be re-try on the
6928                                  * the current registered FCF entry.
6929                                  */
6930                                 lpfc_retry_pport_discovery(phba);
6931                         } else
6932                                 /*
6933                                  * Reset FCF roundrobin bmask for new
6934                                  * discovery.
6935                                  */
6936                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6937                 }
6938                 break;
6939         default:
6940                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6941                                 "0288 Unknown FCoE event type 0x%x event tag "
6942                                 "0x%x\n", event_type, acqe_fip->event_tag);
6943                 break;
6944         }
6945 }
6946
6947 /**
6948  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6949  * @phba: pointer to lpfc hba data structure.
6950  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6951  *
6952  * This routine is to handle the SLI4 asynchronous dcbx event.
6953  **/
6954 static void
6955 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6956                          struct lpfc_acqe_dcbx *acqe_dcbx)
6957 {
6958         phba->fc_eventTag = acqe_dcbx->event_tag;
6959         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6960                         "0290 The SLI4 DCBX asynchronous event is not "
6961                         "handled yet\n");
6962 }
6963
6964 /**
6965  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6966  * @phba: pointer to lpfc hba data structure.
6967  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6968  *
6969  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6970  * is an asynchronous notified of a logical link speed change.  The Port
6971  * reports the logical link speed in units of 10Mbps.
6972  **/
6973 static void
6974 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6975                          struct lpfc_acqe_grp5 *acqe_grp5)
6976 {
6977         uint16_t prev_ll_spd;
6978
6979         phba->fc_eventTag = acqe_grp5->event_tag;
6980         phba->fcoe_eventtag = acqe_grp5->event_tag;
6981         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6982         phba->sli4_hba.link_state.logical_speed =
6983                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6984         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6985                         "2789 GRP5 Async Event: Updating logical link speed "
6986                         "from %dMbps to %dMbps\n", prev_ll_spd,
6987                         phba->sli4_hba.link_state.logical_speed);
6988 }
6989
6990 /**
6991  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6992  * @phba: pointer to lpfc hba data structure.
6993  *
6994  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6995  * is an asynchronous notification of a request to reset CM stats.
6996  **/
6997 static void
6998 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6999 {
7000         if (!phba->cgn_i)
7001                 return;
7002         lpfc_init_congestion_stat(phba);
7003 }
7004
7005 /**
7006  * lpfc_cgn_params_val - Validate FW congestion parameters.
7007  * @phba: pointer to lpfc hba data structure.
7008  * @p_cfg_param: pointer to FW provided congestion parameters.
7009  *
7010  * This routine validates the congestion parameters passed
7011  * by the FW to the driver via an ACQE event.
7012  **/
7013 static void
7014 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
7015 {
7016         spin_lock_irq(&phba->hbalock);
7017
7018         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
7019                              LPFC_CFG_MONITOR)) {
7020                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
7021                                 "6225 CMF mode param out of range: %d\n",
7022                                  p_cfg_param->cgn_param_mode);
7023                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
7024         }
7025
7026         spin_unlock_irq(&phba->hbalock);
7027 }
7028
7029 /**
7030  * lpfc_cgn_params_parse - Process a FW cong parm change event
7031  * @phba: pointer to lpfc hba data structure.
7032  * @p_cgn_param: pointer to a data buffer with the FW cong params.
7033  * @len: the size of pdata in bytes.
7034  *
7035  * This routine validates the congestion management buffer signature
7036  * from the FW, validates the contents and makes corrections for
7037  * valid, in-range values.  If the signature magic is correct and
7038  * after parameter validation, the contents are copied to the driver's
7039  * @phba structure. If the magic is incorrect, an error message is
7040  * logged.
7041  **/
7042 static void
7043 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7044                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7045 {
7046         struct lpfc_cgn_info *cp;
7047         uint32_t crc, oldmode;
7048
7049         /* Make sure the FW has encoded the correct magic number to
7050          * validate the congestion parameter in FW memory.
7051          */
7052         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7053                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7054                                 "4668 FW cgn parm buffer data: "
7055                                 "magic 0x%x version %d mode %d "
7056                                 "level0 %d level1 %d "
7057                                 "level2 %d byte13 %d "
7058                                 "byte14 %d byte15 %d "
7059                                 "byte11 %d byte12 %d activeMode %d\n",
7060                                 p_cgn_param->cgn_param_magic,
7061                                 p_cgn_param->cgn_param_version,
7062                                 p_cgn_param->cgn_param_mode,
7063                                 p_cgn_param->cgn_param_level0,
7064                                 p_cgn_param->cgn_param_level1,
7065                                 p_cgn_param->cgn_param_level2,
7066                                 p_cgn_param->byte13,
7067                                 p_cgn_param->byte14,
7068                                 p_cgn_param->byte15,
7069                                 p_cgn_param->byte11,
7070                                 p_cgn_param->byte12,
7071                                 phba->cmf_active_mode);
7072
7073                 oldmode = phba->cmf_active_mode;
7074
7075                 /* Any parameters out of range are corrected to defaults
7076                  * by this routine.  No need to fail.
7077                  */
7078                 lpfc_cgn_params_val(phba, p_cgn_param);
7079
7080                 /* Parameters are verified, move them into driver storage */
7081                 spin_lock_irq(&phba->hbalock);
7082                 memcpy(&phba->cgn_p, p_cgn_param,
7083                        sizeof(struct lpfc_cgn_param));
7084
7085                 /* Update parameters in congestion info buffer now */
7086                 if (phba->cgn_i) {
7087                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7088                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7089                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7090                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7091                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7092                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7093                                                   LPFC_CGN_CRC32_SEED);
7094                         cp->cgn_info_crc = cpu_to_le32(crc);
7095                 }
7096                 spin_unlock_irq(&phba->hbalock);
7097
7098                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7099
7100                 switch (oldmode) {
7101                 case LPFC_CFG_OFF:
7102                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7103                                 /* Turning CMF on */
7104                                 lpfc_cmf_start(phba);
7105
7106                                 if (phba->link_state >= LPFC_LINK_UP) {
7107                                         phba->cgn_reg_fpin =
7108                                                 phba->cgn_init_reg_fpin;
7109                                         phba->cgn_reg_signal =
7110                                                 phba->cgn_init_reg_signal;
7111                                         lpfc_issue_els_edc(phba->pport, 0);
7112                                 }
7113                         }
7114                         break;
7115                 case LPFC_CFG_MANAGED:
7116                         switch (phba->cgn_p.cgn_param_mode) {
7117                         case LPFC_CFG_OFF:
7118                                 /* Turning CMF off */
7119                                 lpfc_cmf_stop(phba);
7120                                 if (phba->link_state >= LPFC_LINK_UP)
7121                                         lpfc_issue_els_edc(phba->pport, 0);
7122                                 break;
7123                         case LPFC_CFG_MONITOR:
7124                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7125                                                 "4661 Switch from MANAGED to "
7126                                                 "`MONITOR mode\n");
7127                                 phba->cmf_max_bytes_per_interval =
7128                                         phba->cmf_link_byte_count;
7129
7130                                 /* Resume blocked IO - unblock on workqueue */
7131                                 queue_work(phba->wq,
7132                                            &phba->unblock_request_work);
7133                                 break;
7134                         }
7135                         break;
7136                 case LPFC_CFG_MONITOR:
7137                         switch (phba->cgn_p.cgn_param_mode) {
7138                         case LPFC_CFG_OFF:
7139                                 /* Turning CMF off */
7140                                 lpfc_cmf_stop(phba);
7141                                 if (phba->link_state >= LPFC_LINK_UP)
7142                                         lpfc_issue_els_edc(phba->pport, 0);
7143                                 break;
7144                         case LPFC_CFG_MANAGED:
7145                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7146                                                 "4662 Switch from MONITOR to "
7147                                                 "MANAGED mode\n");
7148                                 lpfc_cmf_signal_init(phba);
7149                                 break;
7150                         }
7151                         break;
7152                 }
7153         } else {
7154                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7155                                 "4669 FW cgn parm buf wrong magic 0x%x "
7156                                 "version %d\n", p_cgn_param->cgn_param_magic,
7157                                 p_cgn_param->cgn_param_version);
7158         }
7159 }
7160
7161 /**
7162  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7163  * @phba: pointer to lpfc hba data structure.
7164  *
7165  * This routine issues a read_object mailbox command to
7166  * get the congestion management parameters from the FW
7167  * parses it and updates the driver maintained values.
7168  *
7169  * Returns
7170  *  0     if the object was empty
7171  *  -Eval if an error was encountered
7172  *  Count if bytes were read from object
7173  **/
7174 int
7175 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7176 {
7177         int ret = 0;
7178         struct lpfc_cgn_param *p_cgn_param = NULL;
7179         u32 *pdata = NULL;
7180         u32 len = 0;
7181
7182         /* Find out if the FW has a new set of congestion parameters. */
7183         len = sizeof(struct lpfc_cgn_param);
7184         pdata = kzalloc(len, GFP_KERNEL);
7185         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7186                                pdata, len);
7187
7188         /* 0 means no data.  A negative means error.  A positive means
7189          * bytes were copied.
7190          */
7191         if (!ret) {
7192                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7193                                 "4670 CGN RD OBJ returns no data\n");
7194                 goto rd_obj_err;
7195         } else if (ret < 0) {
7196                 /* Some error.  Just exit and return it to the caller.*/
7197                 goto rd_obj_err;
7198         }
7199
7200         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7201                         "6234 READ CGN PARAMS Successful %d\n", len);
7202
7203         /* Parse data pointer over len and update the phba congestion
7204          * parameters with values passed back.  The receive rate values
7205          * may have been altered in FW, but take no action here.
7206          */
7207         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7208         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7209
7210  rd_obj_err:
7211         kfree(pdata);
7212         return ret;
7213 }
7214
7215 /**
7216  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7217  * @phba: pointer to lpfc hba data structure.
7218  *
7219  * The FW generated Async ACQE SLI event calls this routine when
7220  * the event type is an SLI Internal Port Event and the Event Code
7221  * indicates a change to the FW maintained congestion parameters.
7222  *
7223  * This routine executes a Read_Object mailbox call to obtain the
7224  * current congestion parameters maintained in FW and corrects
7225  * the driver's active congestion parameters.
7226  *
7227  * The acqe event is not passed because there is no further data
7228  * required.
7229  *
7230  * Returns nonzero error if event processing encountered an error.
7231  * Zero otherwise for success.
7232  **/
7233 static int
7234 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7235 {
7236         int ret = 0;
7237
7238         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7239                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7240                                 "4664 Cgn Evt when E2E off. Drop event\n");
7241                 return -EACCES;
7242         }
7243
7244         /* If the event is claiming an empty object, it's ok.  A write
7245          * could have cleared it.  Only error is a negative return
7246          * status.
7247          */
7248         ret = lpfc_sli4_cgn_params_read(phba);
7249         if (ret < 0) {
7250                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7251                                 "4667 Error reading Cgn Params (%d)\n",
7252                                 ret);
7253         } else if (!ret) {
7254                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7255                                 "4673 CGN Event empty object.\n");
7256         }
7257         return ret;
7258 }
7259
7260 /**
7261  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7262  * @phba: pointer to lpfc hba data structure.
7263  *
7264  * This routine is invoked by the worker thread to process all the pending
7265  * SLI4 asynchronous events.
7266  **/
7267 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7268 {
7269         struct lpfc_cq_event *cq_event;
7270         unsigned long iflags;
7271
7272         /* First, declare the async event has been handled */
7273         spin_lock_irqsave(&phba->hbalock, iflags);
7274         phba->hba_flag &= ~ASYNC_EVENT;
7275         spin_unlock_irqrestore(&phba->hbalock, iflags);
7276
7277         /* Now, handle all the async events */
7278         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7279         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7280                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7281                                  cq_event, struct lpfc_cq_event, list);
7282                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7283                                        iflags);
7284
7285                 /* Process the asynchronous event */
7286                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7287                 case LPFC_TRAILER_CODE_LINK:
7288                         lpfc_sli4_async_link_evt(phba,
7289                                                  &cq_event->cqe.acqe_link);
7290                         break;
7291                 case LPFC_TRAILER_CODE_FCOE:
7292                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7293                         break;
7294                 case LPFC_TRAILER_CODE_DCBX:
7295                         lpfc_sli4_async_dcbx_evt(phba,
7296                                                  &cq_event->cqe.acqe_dcbx);
7297                         break;
7298                 case LPFC_TRAILER_CODE_GRP5:
7299                         lpfc_sli4_async_grp5_evt(phba,
7300                                                  &cq_event->cqe.acqe_grp5);
7301                         break;
7302                 case LPFC_TRAILER_CODE_FC:
7303                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7304                         break;
7305                 case LPFC_TRAILER_CODE_SLI:
7306                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7307                         break;
7308                 case LPFC_TRAILER_CODE_CMSTAT:
7309                         lpfc_sli4_async_cmstat_evt(phba);
7310                         break;
7311                 default:
7312                         lpfc_printf_log(phba, KERN_ERR,
7313                                         LOG_TRACE_EVENT,
7314                                         "1804 Invalid asynchronous event code: "
7315                                         "x%x\n", bf_get(lpfc_trailer_code,
7316                                         &cq_event->cqe.mcqe_cmpl));
7317                         break;
7318                 }
7319
7320                 /* Free the completion event processed to the free pool */
7321                 lpfc_sli4_cq_event_release(phba, cq_event);
7322                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7323         }
7324         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7325 }
7326
7327 /**
7328  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7329  * @phba: pointer to lpfc hba data structure.
7330  *
7331  * This routine is invoked by the worker thread to process FCF table
7332  * rediscovery pending completion event.
7333  **/
7334 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7335 {
7336         int rc;
7337
7338         spin_lock_irq(&phba->hbalock);
7339         /* Clear FCF rediscovery timeout event */
7340         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7341         /* Clear driver fast failover FCF record flag */
7342         phba->fcf.failover_rec.flag = 0;
7343         /* Set state for FCF fast failover */
7344         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7345         spin_unlock_irq(&phba->hbalock);
7346
7347         /* Scan FCF table from the first entry to re-discover SAN */
7348         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7349                         "2777 Start post-quiescent FCF table scan\n");
7350         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7351         if (rc)
7352                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7353                                 "2747 Issue FCF scan read FCF mailbox "
7354                                 "command failed 0x%x\n", rc);
7355 }
7356
7357 /**
7358  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7359  * @phba: pointer to lpfc hba data structure.
7360  * @dev_grp: The HBA PCI-Device group number.
7361  *
7362  * This routine is invoked to set up the per HBA PCI-Device group function
7363  * API jump table entries.
7364  *
7365  * Return: 0 if success, otherwise -ENODEV
7366  **/
7367 int
7368 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7369 {
7370         int rc;
7371
7372         /* Set up lpfc PCI-device group */
7373         phba->pci_dev_grp = dev_grp;
7374
7375         /* The LPFC_PCI_DEV_OC uses SLI4 */
7376         if (dev_grp == LPFC_PCI_DEV_OC)
7377                 phba->sli_rev = LPFC_SLI_REV4;
7378
7379         /* Set up device INIT API function jump table */
7380         rc = lpfc_init_api_table_setup(phba, dev_grp);
7381         if (rc)
7382                 return -ENODEV;
7383         /* Set up SCSI API function jump table */
7384         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7385         if (rc)
7386                 return -ENODEV;
7387         /* Set up SLI API function jump table */
7388         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7389         if (rc)
7390                 return -ENODEV;
7391         /* Set up MBOX API function jump table */
7392         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7393         if (rc)
7394                 return -ENODEV;
7395
7396         return 0;
7397 }
7398
7399 /**
7400  * lpfc_log_intr_mode - Log the active interrupt mode
7401  * @phba: pointer to lpfc hba data structure.
7402  * @intr_mode: active interrupt mode adopted.
7403  *
7404  * This routine it invoked to log the currently used active interrupt mode
7405  * to the device.
7406  **/
7407 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7408 {
7409         switch (intr_mode) {
7410         case 0:
7411                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7412                                 "0470 Enable INTx interrupt mode.\n");
7413                 break;
7414         case 1:
7415                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7416                                 "0481 Enabled MSI interrupt mode.\n");
7417                 break;
7418         case 2:
7419                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7420                                 "0480 Enabled MSI-X interrupt mode.\n");
7421                 break;
7422         default:
7423                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7424                                 "0482 Illegal interrupt mode.\n");
7425                 break;
7426         }
7427         return;
7428 }
7429
7430 /**
7431  * lpfc_enable_pci_dev - Enable a generic PCI device.
7432  * @phba: pointer to lpfc hba data structure.
7433  *
7434  * This routine is invoked to enable the PCI device that is common to all
7435  * PCI devices.
7436  *
7437  * Return codes
7438  *      0 - successful
7439  *      other values - error
7440  **/
7441 static int
7442 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7443 {
7444         struct pci_dev *pdev;
7445
7446         /* Obtain PCI device reference */
7447         if (!phba->pcidev)
7448                 goto out_error;
7449         else
7450                 pdev = phba->pcidev;
7451         /* Enable PCI device */
7452         if (pci_enable_device_mem(pdev))
7453                 goto out_error;
7454         /* Request PCI resource for the device */
7455         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7456                 goto out_disable_device;
7457         /* Set up device as PCI master and save state for EEH */
7458         pci_set_master(pdev);
7459         pci_try_set_mwi(pdev);
7460         pci_save_state(pdev);
7461
7462         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7463         if (pci_is_pcie(pdev))
7464                 pdev->needs_freset = 1;
7465
7466         return 0;
7467
7468 out_disable_device:
7469         pci_disable_device(pdev);
7470 out_error:
7471         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472                         "1401 Failed to enable pci device\n");
7473         return -ENODEV;
7474 }
7475
7476 /**
7477  * lpfc_disable_pci_dev - Disable a generic PCI device.
7478  * @phba: pointer to lpfc hba data structure.
7479  *
7480  * This routine is invoked to disable the PCI device that is common to all
7481  * PCI devices.
7482  **/
7483 static void
7484 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7485 {
7486         struct pci_dev *pdev;
7487
7488         /* Obtain PCI device reference */
7489         if (!phba->pcidev)
7490                 return;
7491         else
7492                 pdev = phba->pcidev;
7493         /* Release PCI resource and disable PCI device */
7494         pci_release_mem_regions(pdev);
7495         pci_disable_device(pdev);
7496
7497         return;
7498 }
7499
7500 /**
7501  * lpfc_reset_hba - Reset a hba
7502  * @phba: pointer to lpfc hba data structure.
7503  *
7504  * This routine is invoked to reset a hba device. It brings the HBA
7505  * offline, performs a board restart, and then brings the board back
7506  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7507  * on outstanding mailbox commands.
7508  **/
7509 void
7510 lpfc_reset_hba(struct lpfc_hba *phba)
7511 {
7512         /* If resets are disabled then set error state and return. */
7513         if (!phba->cfg_enable_hba_reset) {
7514                 phba->link_state = LPFC_HBA_ERROR;
7515                 return;
7516         }
7517
7518         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7519         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7520                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7521         } else {
7522                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7523                 lpfc_sli_flush_io_rings(phba);
7524         }
7525         lpfc_offline(phba);
7526         lpfc_sli_brdrestart(phba);
7527         lpfc_online(phba);
7528         lpfc_unblock_mgmt_io(phba);
7529 }
7530
7531 /**
7532  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7533  * @phba: pointer to lpfc hba data structure.
7534  *
7535  * This function enables the PCI SR-IOV virtual functions to a physical
7536  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7537  * enable the number of virtual functions to the physical function. As
7538  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7539  * API call does not considered as an error condition for most of the device.
7540  **/
7541 uint16_t
7542 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7543 {
7544         struct pci_dev *pdev = phba->pcidev;
7545         uint16_t nr_virtfn;
7546         int pos;
7547
7548         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7549         if (pos == 0)
7550                 return 0;
7551
7552         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7553         return nr_virtfn;
7554 }
7555
7556 /**
7557  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7558  * @phba: pointer to lpfc hba data structure.
7559  * @nr_vfn: number of virtual functions to be enabled.
7560  *
7561  * This function enables the PCI SR-IOV virtual functions to a physical
7562  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7563  * enable the number of virtual functions to the physical function. As
7564  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7565  * API call does not considered as an error condition for most of the device.
7566  **/
7567 int
7568 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7569 {
7570         struct pci_dev *pdev = phba->pcidev;
7571         uint16_t max_nr_vfn;
7572         int rc;
7573
7574         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7575         if (nr_vfn > max_nr_vfn) {
7576                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7577                                 "3057 Requested vfs (%d) greater than "
7578                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7579                 return -EINVAL;
7580         }
7581
7582         rc = pci_enable_sriov(pdev, nr_vfn);
7583         if (rc) {
7584                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7585                                 "2806 Failed to enable sriov on this device "
7586                                 "with vfn number nr_vf:%d, rc:%d\n",
7587                                 nr_vfn, rc);
7588         } else
7589                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7590                                 "2807 Successful enable sriov on this device "
7591                                 "with vfn number nr_vf:%d\n", nr_vfn);
7592         return rc;
7593 }
7594
7595 static void
7596 lpfc_unblock_requests_work(struct work_struct *work)
7597 {
7598         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7599                                              unblock_request_work);
7600
7601         lpfc_unblock_requests(phba);
7602 }
7603
7604 /**
7605  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7606  * @phba: pointer to lpfc hba data structure.
7607  *
7608  * This routine is invoked to set up the driver internal resources before the
7609  * device specific resource setup to support the HBA device it attached to.
7610  *
7611  * Return codes
7612  *      0 - successful
7613  *      other values - error
7614  **/
7615 static int
7616 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7617 {
7618         struct lpfc_sli *psli = &phba->sli;
7619
7620         /*
7621          * Driver resources common to all SLI revisions
7622          */
7623         atomic_set(&phba->fast_event_count, 0);
7624         atomic_set(&phba->dbg_log_idx, 0);
7625         atomic_set(&phba->dbg_log_cnt, 0);
7626         atomic_set(&phba->dbg_log_dmping, 0);
7627         spin_lock_init(&phba->hbalock);
7628
7629         /* Initialize port_list spinlock */
7630         spin_lock_init(&phba->port_list_lock);
7631         INIT_LIST_HEAD(&phba->port_list);
7632
7633         INIT_LIST_HEAD(&phba->work_list);
7634         init_waitqueue_head(&phba->wait_4_mlo_m_q);
7635
7636         /* Initialize the wait queue head for the kernel thread */
7637         init_waitqueue_head(&phba->work_waitq);
7638
7639         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7640                         "1403 Protocols supported %s %s %s\n",
7641                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7642                                 "SCSI" : " "),
7643                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7644                                 "NVME" : " "),
7645                         (phba->nvmet_support ? "NVMET" : " "));
7646
7647         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7648         spin_lock_init(&phba->scsi_buf_list_get_lock);
7649         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7650         spin_lock_init(&phba->scsi_buf_list_put_lock);
7651         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7652
7653         /* Initialize the fabric iocb list */
7654         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7655
7656         /* Initialize list to save ELS buffers */
7657         INIT_LIST_HEAD(&phba->elsbuf);
7658
7659         /* Initialize FCF connection rec list */
7660         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7661
7662         /* Initialize OAS configuration list */
7663         spin_lock_init(&phba->devicelock);
7664         INIT_LIST_HEAD(&phba->luns);
7665
7666         /* MBOX heartbeat timer */
7667         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7668         /* Fabric block timer */
7669         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7670         /* EA polling mode timer */
7671         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7672         /* Heartbeat timer */
7673         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7674
7675         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7676
7677         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7678                           lpfc_idle_stat_delay_work);
7679         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7680         return 0;
7681 }
7682
7683 /**
7684  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7685  * @phba: pointer to lpfc hba data structure.
7686  *
7687  * This routine is invoked to set up the driver internal resources specific to
7688  * support the SLI-3 HBA device it attached to.
7689  *
7690  * Return codes
7691  * 0 - successful
7692  * other values - error
7693  **/
7694 static int
7695 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7696 {
7697         int rc, entry_sz;
7698
7699         /*
7700          * Initialize timers used by driver
7701          */
7702
7703         /* FCP polling mode timer */
7704         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7705
7706         /* Host attention work mask setup */
7707         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7708         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7709
7710         /* Get all the module params for configuring this host */
7711         lpfc_get_cfgparam(phba);
7712         /* Set up phase-1 common device driver resources */
7713
7714         rc = lpfc_setup_driver_resource_phase1(phba);
7715         if (rc)
7716                 return -ENODEV;
7717
7718         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7719                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7720                 /* check for menlo minimum sg count */
7721                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7722                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7723         }
7724
7725         if (!phba->sli.sli3_ring)
7726                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7727                                               sizeof(struct lpfc_sli_ring),
7728                                               GFP_KERNEL);
7729         if (!phba->sli.sli3_ring)
7730                 return -ENOMEM;
7731
7732         /*
7733          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7734          * used to create the sg_dma_buf_pool must be dynamically calculated.
7735          */
7736
7737         if (phba->sli_rev == LPFC_SLI_REV4)
7738                 entry_sz = sizeof(struct sli4_sge);
7739         else
7740                 entry_sz = sizeof(struct ulp_bde64);
7741
7742         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7743         if (phba->cfg_enable_bg) {
7744                 /*
7745                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7746                  * the FCP rsp, and a BDE for each. Sice we have no control
7747                  * over how many protection data segments the SCSI Layer
7748                  * will hand us (ie: there could be one for every block
7749                  * in the IO), we just allocate enough BDEs to accomidate
7750                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7751                  * minimize the risk of running out.
7752                  */
7753                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7754                         sizeof(struct fcp_rsp) +
7755                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7756
7757                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7758                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7759
7760                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7761                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7762         } else {
7763                 /*
7764                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7765                  * the FCP rsp, a BDE for each, and a BDE for up to
7766                  * cfg_sg_seg_cnt data segments.
7767                  */
7768                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7769                         sizeof(struct fcp_rsp) +
7770                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7771
7772                 /* Total BDEs in BPL for scsi_sg_list */
7773                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7774         }
7775
7776         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7777                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7778                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7779                         phba->cfg_total_seg_cnt);
7780
7781         phba->max_vpi = LPFC_MAX_VPI;
7782         /* This will be set to correct value after config_port mbox */
7783         phba->max_vports = 0;
7784
7785         /*
7786          * Initialize the SLI Layer to run with lpfc HBAs.
7787          */
7788         lpfc_sli_setup(phba);
7789         lpfc_sli_queue_init(phba);
7790
7791         /* Allocate device driver memory */
7792         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7793                 return -ENOMEM;
7794
7795         phba->lpfc_sg_dma_buf_pool =
7796                 dma_pool_create("lpfc_sg_dma_buf_pool",
7797                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7798                                 BPL_ALIGN_SZ, 0);
7799
7800         if (!phba->lpfc_sg_dma_buf_pool)
7801                 goto fail_free_mem;
7802
7803         phba->lpfc_cmd_rsp_buf_pool =
7804                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7805                                         &phba->pcidev->dev,
7806                                         sizeof(struct fcp_cmnd) +
7807                                         sizeof(struct fcp_rsp),
7808                                         BPL_ALIGN_SZ, 0);
7809
7810         if (!phba->lpfc_cmd_rsp_buf_pool)
7811                 goto fail_free_dma_buf_pool;
7812
7813         /*
7814          * Enable sr-iov virtual functions if supported and configured
7815          * through the module parameter.
7816          */
7817         if (phba->cfg_sriov_nr_virtfn > 0) {
7818                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7819                                                  phba->cfg_sriov_nr_virtfn);
7820                 if (rc) {
7821                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7822                                         "2808 Requested number of SR-IOV "
7823                                         "virtual functions (%d) is not "
7824                                         "supported\n",
7825                                         phba->cfg_sriov_nr_virtfn);
7826                         phba->cfg_sriov_nr_virtfn = 0;
7827                 }
7828         }
7829
7830         return 0;
7831
7832 fail_free_dma_buf_pool:
7833         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7834         phba->lpfc_sg_dma_buf_pool = NULL;
7835 fail_free_mem:
7836         lpfc_mem_free(phba);
7837         return -ENOMEM;
7838 }
7839
7840 /**
7841  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7842  * @phba: pointer to lpfc hba data structure.
7843  *
7844  * This routine is invoked to unset the driver internal resources set up
7845  * specific for supporting the SLI-3 HBA device it attached to.
7846  **/
7847 static void
7848 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7849 {
7850         /* Free device driver memory allocated */
7851         lpfc_mem_free_all(phba);
7852
7853         return;
7854 }
7855
7856 /**
7857  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7858  * @phba: pointer to lpfc hba data structure.
7859  *
7860  * This routine is invoked to set up the driver internal resources specific to
7861  * support the SLI-4 HBA device it attached to.
7862  *
7863  * Return codes
7864  *      0 - successful
7865  *      other values - error
7866  **/
7867 static int
7868 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7869 {
7870         LPFC_MBOXQ_t *mboxq;
7871         MAILBOX_t *mb;
7872         int rc, i, max_buf_size;
7873         int longs;
7874         int extra;
7875         uint64_t wwn;
7876         u32 if_type;
7877         u32 if_fam;
7878
7879         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7880         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7881         phba->sli4_hba.curr_disp_cpu = 0;
7882
7883         /* Get all the module params for configuring this host */
7884         lpfc_get_cfgparam(phba);
7885
7886         /* Set up phase-1 common device driver resources */
7887         rc = lpfc_setup_driver_resource_phase1(phba);
7888         if (rc)
7889                 return -ENODEV;
7890
7891         /* Before proceed, wait for POST done and device ready */
7892         rc = lpfc_sli4_post_status_check(phba);
7893         if (rc)
7894                 return -ENODEV;
7895
7896         /* Allocate all driver workqueues here */
7897
7898         /* The lpfc_wq workqueue for deferred irq use */
7899         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7900
7901         /*
7902          * Initialize timers used by driver
7903          */
7904
7905         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7906
7907         /* FCF rediscover timer */
7908         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7909
7910         /* CMF congestion timer */
7911         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7912         phba->cmf_timer.function = lpfc_cmf_timer;
7913
7914         /*
7915          * Control structure for handling external multi-buffer mailbox
7916          * command pass-through.
7917          */
7918         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7919                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7920         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7921
7922         phba->max_vpi = LPFC_MAX_VPI;
7923
7924         /* This will be set to correct value after the read_config mbox */
7925         phba->max_vports = 0;
7926
7927         /* Program the default value of vlan_id and fc_map */
7928         phba->valid_vlan = 0;
7929         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7930         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7931         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7932
7933         /*
7934          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7935          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7936          * The WQ create will allocate the ring.
7937          */
7938
7939         /* Initialize buffer queue management fields */
7940         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7941         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7942         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7943
7944         /* for VMID idle timeout if VMID is enabled */
7945         if (lpfc_is_vmid_enabled(phba))
7946                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7947
7948         /*
7949          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7950          */
7951         /* Initialize the Abort buffer list used by driver */
7952         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7953         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7954
7955         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7956                 /* Initialize the Abort nvme buffer list used by driver */
7957                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7958                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7959                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7960                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7961                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7962         }
7963
7964         /* This abort list used by worker thread */
7965         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7966         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7967         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7968         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7969
7970         /*
7971          * Initialize driver internal slow-path work queues
7972          */
7973
7974         /* Driver internel slow-path CQ Event pool */
7975         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7976         /* Response IOCB work queue list */
7977         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7978         /* Asynchronous event CQ Event work queue list */
7979         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7980         /* Slow-path XRI aborted CQ Event work queue list */
7981         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7982         /* Receive queue CQ Event work queue list */
7983         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7984
7985         /* Initialize extent block lists. */
7986         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7987         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7988         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7989         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7990
7991         /* Initialize mboxq lists. If the early init routines fail
7992          * these lists need to be correctly initialized.
7993          */
7994         INIT_LIST_HEAD(&phba->sli.mboxq);
7995         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7996
7997         /* initialize optic_state to 0xFF */
7998         phba->sli4_hba.lnk_info.optic_state = 0xff;
7999
8000         /* Allocate device driver memory */
8001         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
8002         if (rc)
8003                 return -ENOMEM;
8004
8005         /* IF Type 2 ports get initialized now. */
8006         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
8007             LPFC_SLI_INTF_IF_TYPE_2) {
8008                 rc = lpfc_pci_function_reset(phba);
8009                 if (unlikely(rc)) {
8010                         rc = -ENODEV;
8011                         goto out_free_mem;
8012                 }
8013                 phba->temp_sensor_support = 1;
8014         }
8015
8016         /* Create the bootstrap mailbox command */
8017         rc = lpfc_create_bootstrap_mbox(phba);
8018         if (unlikely(rc))
8019                 goto out_free_mem;
8020
8021         /* Set up the host's endian order with the device. */
8022         rc = lpfc_setup_endian_order(phba);
8023         if (unlikely(rc))
8024                 goto out_free_bsmbx;
8025
8026         /* Set up the hba's configuration parameters. */
8027         rc = lpfc_sli4_read_config(phba);
8028         if (unlikely(rc))
8029                 goto out_free_bsmbx;
8030         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8031         if (unlikely(rc))
8032                 goto out_free_bsmbx;
8033
8034         /* IF Type 0 ports get initialized now. */
8035         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8036             LPFC_SLI_INTF_IF_TYPE_0) {
8037                 rc = lpfc_pci_function_reset(phba);
8038                 if (unlikely(rc))
8039                         goto out_free_bsmbx;
8040         }
8041
8042         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8043                                                        GFP_KERNEL);
8044         if (!mboxq) {
8045                 rc = -ENOMEM;
8046                 goto out_free_bsmbx;
8047         }
8048
8049         /* Check for NVMET being configured */
8050         phba->nvmet_support = 0;
8051         if (lpfc_enable_nvmet_cnt) {
8052
8053                 /* First get WWN of HBA instance */
8054                 lpfc_read_nv(phba, mboxq);
8055                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8056                 if (rc != MBX_SUCCESS) {
8057                         lpfc_printf_log(phba, KERN_ERR,
8058                                         LOG_TRACE_EVENT,
8059                                         "6016 Mailbox failed , mbxCmd x%x "
8060                                         "READ_NV, mbxStatus x%x\n",
8061                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8062                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8063                         mempool_free(mboxq, phba->mbox_mem_pool);
8064                         rc = -EIO;
8065                         goto out_free_bsmbx;
8066                 }
8067                 mb = &mboxq->u.mb;
8068                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8069                        sizeof(uint64_t));
8070                 wwn = cpu_to_be64(wwn);
8071                 phba->sli4_hba.wwnn.u.name = wwn;
8072                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8073                        sizeof(uint64_t));
8074                 /* wwn is WWPN of HBA instance */
8075                 wwn = cpu_to_be64(wwn);
8076                 phba->sli4_hba.wwpn.u.name = wwn;
8077
8078                 /* Check to see if it matches any module parameter */
8079                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8080                         if (wwn == lpfc_enable_nvmet[i]) {
8081 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8082                                 if (lpfc_nvmet_mem_alloc(phba))
8083                                         break;
8084
8085                                 phba->nvmet_support = 1; /* a match */
8086
8087                                 lpfc_printf_log(phba, KERN_ERR,
8088                                                 LOG_TRACE_EVENT,
8089                                                 "6017 NVME Target %016llx\n",
8090                                                 wwn);
8091 #else
8092                                 lpfc_printf_log(phba, KERN_ERR,
8093                                                 LOG_TRACE_EVENT,
8094                                                 "6021 Can't enable NVME Target."
8095                                                 " NVME_TARGET_FC infrastructure"
8096                                                 " is not in kernel\n");
8097 #endif
8098                                 /* Not supported for NVMET */
8099                                 phba->cfg_xri_rebalancing = 0;
8100                                 if (phba->irq_chann_mode == NHT_MODE) {
8101                                         phba->cfg_irq_chann =
8102                                                 phba->sli4_hba.num_present_cpu;
8103                                         phba->cfg_hdw_queue =
8104                                                 phba->sli4_hba.num_present_cpu;
8105                                         phba->irq_chann_mode = NORMAL_MODE;
8106                                 }
8107                                 break;
8108                         }
8109                 }
8110         }
8111
8112         lpfc_nvme_mod_param_dep(phba);
8113
8114         /*
8115          * Get sli4 parameters that override parameters from Port capabilities.
8116          * If this call fails, it isn't critical unless the SLI4 parameters come
8117          * back in conflict.
8118          */
8119         rc = lpfc_get_sli4_parameters(phba, mboxq);
8120         if (rc) {
8121                 if_type = bf_get(lpfc_sli_intf_if_type,
8122                                  &phba->sli4_hba.sli_intf);
8123                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8124                                 &phba->sli4_hba.sli_intf);
8125                 if (phba->sli4_hba.extents_in_use &&
8126                     phba->sli4_hba.rpi_hdrs_in_use) {
8127                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8128                                         "2999 Unsupported SLI4 Parameters "
8129                                         "Extents and RPI headers enabled.\n");
8130                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8131                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8132                                 mempool_free(mboxq, phba->mbox_mem_pool);
8133                                 rc = -EIO;
8134                                 goto out_free_bsmbx;
8135                         }
8136                 }
8137                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8138                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8139                         mempool_free(mboxq, phba->mbox_mem_pool);
8140                         rc = -EIO;
8141                         goto out_free_bsmbx;
8142                 }
8143         }
8144
8145         /*
8146          * 1 for cmd, 1 for rsp, NVME adds an extra one
8147          * for boundary conditions in its max_sgl_segment template.
8148          */
8149         extra = 2;
8150         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8151                 extra++;
8152
8153         /*
8154          * It doesn't matter what family our adapter is in, we are
8155          * limited to 2 Pages, 512 SGEs, for our SGL.
8156          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8157          */
8158         max_buf_size = (2 * SLI4_PAGE_SIZE);
8159
8160         /*
8161          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8162          * used to create the sg_dma_buf_pool must be calculated.
8163          */
8164         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8165                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8166
8167                 /*
8168                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8169                  * the FCP rsp, and a SGE. Sice we have no control
8170                  * over how many protection segments the SCSI Layer
8171                  * will hand us (ie: there could be one for every block
8172                  * in the IO), just allocate enough SGEs to accomidate
8173                  * our max amount and we need to limit lpfc_sg_seg_cnt
8174                  * to minimize the risk of running out.
8175                  */
8176                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8177                                 sizeof(struct fcp_rsp) + max_buf_size;
8178
8179                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8180                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8181
8182                 /*
8183                  * If supporting DIF, reduce the seg count for scsi to
8184                  * allow room for the DIF sges.
8185                  */
8186                 if (phba->cfg_enable_bg &&
8187                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8188                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8189                 else
8190                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8191
8192         } else {
8193                 /*
8194                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8195                  * the FCP rsp, a SGE for each, and a SGE for up to
8196                  * cfg_sg_seg_cnt data segments.
8197                  */
8198                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8199                                 sizeof(struct fcp_rsp) +
8200                                 ((phba->cfg_sg_seg_cnt + extra) *
8201                                 sizeof(struct sli4_sge));
8202
8203                 /* Total SGEs for scsi_sg_list */
8204                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8205                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8206
8207                 /*
8208                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8209                  * need to post 1 page for the SGL.
8210                  */
8211         }
8212
8213         if (phba->cfg_xpsgl && !phba->nvmet_support)
8214                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8215         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8216                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8217         else
8218                 phba->cfg_sg_dma_buf_size =
8219                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8220
8221         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8222                                sizeof(struct sli4_sge);
8223
8224         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8225         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8226                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8227                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8228                                         "6300 Reducing NVME sg segment "
8229                                         "cnt to %d\n",
8230                                         LPFC_MAX_NVME_SEG_CNT);
8231                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8232                 } else
8233                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8234         }
8235
8236         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8237                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8238                         "total:%d scsi:%d nvme:%d\n",
8239                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8240                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8241                         phba->cfg_nvme_seg_cnt);
8242
8243         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8244                 i = phba->cfg_sg_dma_buf_size;
8245         else
8246                 i = SLI4_PAGE_SIZE;
8247
8248         phba->lpfc_sg_dma_buf_pool =
8249                         dma_pool_create("lpfc_sg_dma_buf_pool",
8250                                         &phba->pcidev->dev,
8251                                         phba->cfg_sg_dma_buf_size,
8252                                         i, 0);
8253         if (!phba->lpfc_sg_dma_buf_pool)
8254                 goto out_free_bsmbx;
8255
8256         phba->lpfc_cmd_rsp_buf_pool =
8257                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8258                                         &phba->pcidev->dev,
8259                                         sizeof(struct fcp_cmnd) +
8260                                         sizeof(struct fcp_rsp),
8261                                         i, 0);
8262         if (!phba->lpfc_cmd_rsp_buf_pool)
8263                 goto out_free_sg_dma_buf;
8264
8265         mempool_free(mboxq, phba->mbox_mem_pool);
8266
8267         /* Verify OAS is supported */
8268         lpfc_sli4_oas_verify(phba);
8269
8270         /* Verify RAS support on adapter */
8271         lpfc_sli4_ras_init(phba);
8272
8273         /* Verify all the SLI4 queues */
8274         rc = lpfc_sli4_queue_verify(phba);
8275         if (rc)
8276                 goto out_free_cmd_rsp_buf;
8277
8278         /* Create driver internal CQE event pool */
8279         rc = lpfc_sli4_cq_event_pool_create(phba);
8280         if (rc)
8281                 goto out_free_cmd_rsp_buf;
8282
8283         /* Initialize sgl lists per host */
8284         lpfc_init_sgl_list(phba);
8285
8286         /* Allocate and initialize active sgl array */
8287         rc = lpfc_init_active_sgl_array(phba);
8288         if (rc) {
8289                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8290                                 "1430 Failed to initialize sgl list.\n");
8291                 goto out_destroy_cq_event_pool;
8292         }
8293         rc = lpfc_sli4_init_rpi_hdrs(phba);
8294         if (rc) {
8295                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8296                                 "1432 Failed to initialize rpi headers.\n");
8297                 goto out_free_active_sgl;
8298         }
8299
8300         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8301         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8302         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8303                                          GFP_KERNEL);
8304         if (!phba->fcf.fcf_rr_bmask) {
8305                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8306                                 "2759 Failed allocate memory for FCF round "
8307                                 "robin failover bmask\n");
8308                 rc = -ENOMEM;
8309                 goto out_remove_rpi_hdrs;
8310         }
8311
8312         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8313                                             sizeof(struct lpfc_hba_eq_hdl),
8314                                             GFP_KERNEL);
8315         if (!phba->sli4_hba.hba_eq_hdl) {
8316                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8317                                 "2572 Failed allocate memory for "
8318                                 "fast-path per-EQ handle array\n");
8319                 rc = -ENOMEM;
8320                 goto out_free_fcf_rr_bmask;
8321         }
8322
8323         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8324                                         sizeof(struct lpfc_vector_map_info),
8325                                         GFP_KERNEL);
8326         if (!phba->sli4_hba.cpu_map) {
8327                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8328                                 "3327 Failed allocate memory for msi-x "
8329                                 "interrupt vector mapping\n");
8330                 rc = -ENOMEM;
8331                 goto out_free_hba_eq_hdl;
8332         }
8333
8334         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8335         if (!phba->sli4_hba.eq_info) {
8336                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8337                                 "3321 Failed allocation for per_cpu stats\n");
8338                 rc = -ENOMEM;
8339                 goto out_free_hba_cpu_map;
8340         }
8341
8342         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8343                                            sizeof(*phba->sli4_hba.idle_stat),
8344                                            GFP_KERNEL);
8345         if (!phba->sli4_hba.idle_stat) {
8346                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8347                                 "3390 Failed allocation for idle_stat\n");
8348                 rc = -ENOMEM;
8349                 goto out_free_hba_eq_info;
8350         }
8351
8352 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8353         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8354         if (!phba->sli4_hba.c_stat) {
8355                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8356                                 "3332 Failed allocating per cpu hdwq stats\n");
8357                 rc = -ENOMEM;
8358                 goto out_free_hba_idle_stat;
8359         }
8360 #endif
8361
8362         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8363         if (!phba->cmf_stat) {
8364                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8365                                 "3331 Failed allocating per cpu cgn stats\n");
8366                 rc = -ENOMEM;
8367                 goto out_free_hba_hdwq_info;
8368         }
8369
8370         /*
8371          * Enable sr-iov virtual functions if supported and configured
8372          * through the module parameter.
8373          */
8374         if (phba->cfg_sriov_nr_virtfn > 0) {
8375                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8376                                                  phba->cfg_sriov_nr_virtfn);
8377                 if (rc) {
8378                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8379                                         "3020 Requested number of SR-IOV "
8380                                         "virtual functions (%d) is not "
8381                                         "supported\n",
8382                                         phba->cfg_sriov_nr_virtfn);
8383                         phba->cfg_sriov_nr_virtfn = 0;
8384                 }
8385         }
8386
8387         return 0;
8388
8389 out_free_hba_hdwq_info:
8390 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8391         free_percpu(phba->sli4_hba.c_stat);
8392 out_free_hba_idle_stat:
8393 #endif
8394         kfree(phba->sli4_hba.idle_stat);
8395 out_free_hba_eq_info:
8396         free_percpu(phba->sli4_hba.eq_info);
8397 out_free_hba_cpu_map:
8398         kfree(phba->sli4_hba.cpu_map);
8399 out_free_hba_eq_hdl:
8400         kfree(phba->sli4_hba.hba_eq_hdl);
8401 out_free_fcf_rr_bmask:
8402         kfree(phba->fcf.fcf_rr_bmask);
8403 out_remove_rpi_hdrs:
8404         lpfc_sli4_remove_rpi_hdrs(phba);
8405 out_free_active_sgl:
8406         lpfc_free_active_sgl(phba);
8407 out_destroy_cq_event_pool:
8408         lpfc_sli4_cq_event_pool_destroy(phba);
8409 out_free_cmd_rsp_buf:
8410         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8411         phba->lpfc_cmd_rsp_buf_pool = NULL;
8412 out_free_sg_dma_buf:
8413         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8414         phba->lpfc_sg_dma_buf_pool = NULL;
8415 out_free_bsmbx:
8416         lpfc_destroy_bootstrap_mbox(phba);
8417 out_free_mem:
8418         lpfc_mem_free(phba);
8419         return rc;
8420 }
8421
8422 /**
8423  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8424  * @phba: pointer to lpfc hba data structure.
8425  *
8426  * This routine is invoked to unset the driver internal resources set up
8427  * specific for supporting the SLI-4 HBA device it attached to.
8428  **/
8429 static void
8430 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8431 {
8432         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8433
8434         free_percpu(phba->sli4_hba.eq_info);
8435 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8436         free_percpu(phba->sli4_hba.c_stat);
8437 #endif
8438         free_percpu(phba->cmf_stat);
8439         kfree(phba->sli4_hba.idle_stat);
8440
8441         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8442         kfree(phba->sli4_hba.cpu_map);
8443         phba->sli4_hba.num_possible_cpu = 0;
8444         phba->sli4_hba.num_present_cpu = 0;
8445         phba->sli4_hba.curr_disp_cpu = 0;
8446         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8447
8448         /* Free memory allocated for fast-path work queue handles */
8449         kfree(phba->sli4_hba.hba_eq_hdl);
8450
8451         /* Free the allocated rpi headers. */
8452         lpfc_sli4_remove_rpi_hdrs(phba);
8453         lpfc_sli4_remove_rpis(phba);
8454
8455         /* Free eligible FCF index bmask */
8456         kfree(phba->fcf.fcf_rr_bmask);
8457
8458         /* Free the ELS sgl list */
8459         lpfc_free_active_sgl(phba);
8460         lpfc_free_els_sgl_list(phba);
8461         lpfc_free_nvmet_sgl_list(phba);
8462
8463         /* Free the completion queue EQ event pool */
8464         lpfc_sli4_cq_event_release_all(phba);
8465         lpfc_sli4_cq_event_pool_destroy(phba);
8466
8467         /* Release resource identifiers. */
8468         lpfc_sli4_dealloc_resource_identifiers(phba);
8469
8470         /* Free the bsmbx region. */
8471         lpfc_destroy_bootstrap_mbox(phba);
8472
8473         /* Free the SLI Layer memory with SLI4 HBAs */
8474         lpfc_mem_free_all(phba);
8475
8476         /* Free the current connect table */
8477         list_for_each_entry_safe(conn_entry, next_conn_entry,
8478                 &phba->fcf_conn_rec_list, list) {
8479                 list_del_init(&conn_entry->list);
8480                 kfree(conn_entry);
8481         }
8482
8483         return;
8484 }
8485
8486 /**
8487  * lpfc_init_api_table_setup - Set up init api function jump table
8488  * @phba: The hba struct for which this call is being executed.
8489  * @dev_grp: The HBA PCI-Device group number.
8490  *
8491  * This routine sets up the device INIT interface API function jump table
8492  * in @phba struct.
8493  *
8494  * Returns: 0 - success, -ENODEV - failure.
8495  **/
8496 int
8497 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8498 {
8499         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8500         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8501         phba->lpfc_selective_reset = lpfc_selective_reset;
8502         switch (dev_grp) {
8503         case LPFC_PCI_DEV_LP:
8504                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8505                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8506                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8507                 break;
8508         case LPFC_PCI_DEV_OC:
8509                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8510                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8511                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8512                 break;
8513         default:
8514                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8515                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8516                                 dev_grp);
8517                 return -ENODEV;
8518         }
8519         return 0;
8520 }
8521
8522 /**
8523  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8524  * @phba: pointer to lpfc hba data structure.
8525  *
8526  * This routine is invoked to set up the driver internal resources after the
8527  * device specific resource setup to support the HBA device it attached to.
8528  *
8529  * Return codes
8530  *      0 - successful
8531  *      other values - error
8532  **/
8533 static int
8534 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8535 {
8536         int error;
8537
8538         /* Startup the kernel thread for this host adapter. */
8539         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8540                                           "lpfc_worker_%d", phba->brd_no);
8541         if (IS_ERR(phba->worker_thread)) {
8542                 error = PTR_ERR(phba->worker_thread);
8543                 return error;
8544         }
8545
8546         return 0;
8547 }
8548
8549 /**
8550  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8551  * @phba: pointer to lpfc hba data structure.
8552  *
8553  * This routine is invoked to unset the driver internal resources set up after
8554  * the device specific resource setup for supporting the HBA device it
8555  * attached to.
8556  **/
8557 static void
8558 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8559 {
8560         if (phba->wq) {
8561                 destroy_workqueue(phba->wq);
8562                 phba->wq = NULL;
8563         }
8564
8565         /* Stop kernel worker thread */
8566         if (phba->worker_thread)
8567                 kthread_stop(phba->worker_thread);
8568 }
8569
8570 /**
8571  * lpfc_free_iocb_list - Free iocb list.
8572  * @phba: pointer to lpfc hba data structure.
8573  *
8574  * This routine is invoked to free the driver's IOCB list and memory.
8575  **/
8576 void
8577 lpfc_free_iocb_list(struct lpfc_hba *phba)
8578 {
8579         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8580
8581         spin_lock_irq(&phba->hbalock);
8582         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8583                                  &phba->lpfc_iocb_list, list) {
8584                 list_del(&iocbq_entry->list);
8585                 kfree(iocbq_entry);
8586                 phba->total_iocbq_bufs--;
8587         }
8588         spin_unlock_irq(&phba->hbalock);
8589
8590         return;
8591 }
8592
8593 /**
8594  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8595  * @phba: pointer to lpfc hba data structure.
8596  * @iocb_count: number of requested iocbs
8597  *
8598  * This routine is invoked to allocate and initizlize the driver's IOCB
8599  * list and set up the IOCB tag array accordingly.
8600  *
8601  * Return codes
8602  *      0 - successful
8603  *      other values - error
8604  **/
8605 int
8606 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8607 {
8608         struct lpfc_iocbq *iocbq_entry = NULL;
8609         uint16_t iotag;
8610         int i;
8611
8612         /* Initialize and populate the iocb list per host.  */
8613         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8614         for (i = 0; i < iocb_count; i++) {
8615                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8616                 if (iocbq_entry == NULL) {
8617                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8618                                 "expected %d count. Unloading driver.\n",
8619                                 __func__, i, iocb_count);
8620                         goto out_free_iocbq;
8621                 }
8622
8623                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8624                 if (iotag == 0) {
8625                         kfree(iocbq_entry);
8626                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8627                                 "Unloading driver.\n", __func__);
8628                         goto out_free_iocbq;
8629                 }
8630                 iocbq_entry->sli4_lxritag = NO_XRI;
8631                 iocbq_entry->sli4_xritag = NO_XRI;
8632
8633                 spin_lock_irq(&phba->hbalock);
8634                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8635                 phba->total_iocbq_bufs++;
8636                 spin_unlock_irq(&phba->hbalock);
8637         }
8638
8639         return 0;
8640
8641 out_free_iocbq:
8642         lpfc_free_iocb_list(phba);
8643
8644         return -ENOMEM;
8645 }
8646
8647 /**
8648  * lpfc_free_sgl_list - Free a given sgl list.
8649  * @phba: pointer to lpfc hba data structure.
8650  * @sglq_list: pointer to the head of sgl list.
8651  *
8652  * This routine is invoked to free a give sgl list and memory.
8653  **/
8654 void
8655 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8656 {
8657         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8658
8659         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8660                 list_del(&sglq_entry->list);
8661                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8662                 kfree(sglq_entry);
8663         }
8664 }
8665
8666 /**
8667  * lpfc_free_els_sgl_list - Free els sgl list.
8668  * @phba: pointer to lpfc hba data structure.
8669  *
8670  * This routine is invoked to free the driver's els sgl list and memory.
8671  **/
8672 static void
8673 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8674 {
8675         LIST_HEAD(sglq_list);
8676
8677         /* Retrieve all els sgls from driver list */
8678         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8679         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8680         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8681
8682         /* Now free the sgl list */
8683         lpfc_free_sgl_list(phba, &sglq_list);
8684 }
8685
8686 /**
8687  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8688  * @phba: pointer to lpfc hba data structure.
8689  *
8690  * This routine is invoked to free the driver's nvmet sgl list and memory.
8691  **/
8692 static void
8693 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8694 {
8695         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8696         LIST_HEAD(sglq_list);
8697
8698         /* Retrieve all nvmet sgls from driver list */
8699         spin_lock_irq(&phba->hbalock);
8700         spin_lock(&phba->sli4_hba.sgl_list_lock);
8701         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8702         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8703         spin_unlock_irq(&phba->hbalock);
8704
8705         /* Now free the sgl list */
8706         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8707                 list_del(&sglq_entry->list);
8708                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8709                 kfree(sglq_entry);
8710         }
8711
8712         /* Update the nvmet_xri_cnt to reflect no current sgls.
8713          * The next initialization cycle sets the count and allocates
8714          * the sgls over again.
8715          */
8716         phba->sli4_hba.nvmet_xri_cnt = 0;
8717 }
8718
8719 /**
8720  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8721  * @phba: pointer to lpfc hba data structure.
8722  *
8723  * This routine is invoked to allocate the driver's active sgl memory.
8724  * This array will hold the sglq_entry's for active IOs.
8725  **/
8726 static int
8727 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8728 {
8729         int size;
8730         size = sizeof(struct lpfc_sglq *);
8731         size *= phba->sli4_hba.max_cfg_param.max_xri;
8732
8733         phba->sli4_hba.lpfc_sglq_active_list =
8734                 kzalloc(size, GFP_KERNEL);
8735         if (!phba->sli4_hba.lpfc_sglq_active_list)
8736                 return -ENOMEM;
8737         return 0;
8738 }
8739
8740 /**
8741  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8742  * @phba: pointer to lpfc hba data structure.
8743  *
8744  * This routine is invoked to walk through the array of active sglq entries
8745  * and free all of the resources.
8746  * This is just a place holder for now.
8747  **/
8748 static void
8749 lpfc_free_active_sgl(struct lpfc_hba *phba)
8750 {
8751         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8752 }
8753
8754 /**
8755  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8756  * @phba: pointer to lpfc hba data structure.
8757  *
8758  * This routine is invoked to allocate and initizlize the driver's sgl
8759  * list and set up the sgl xritag tag array accordingly.
8760  *
8761  **/
8762 static void
8763 lpfc_init_sgl_list(struct lpfc_hba *phba)
8764 {
8765         /* Initialize and populate the sglq list per host/VF. */
8766         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8767         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8768         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8769         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8770
8771         /* els xri-sgl book keeping */
8772         phba->sli4_hba.els_xri_cnt = 0;
8773
8774         /* nvme xri-buffer book keeping */
8775         phba->sli4_hba.io_xri_cnt = 0;
8776 }
8777
8778 /**
8779  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8780  * @phba: pointer to lpfc hba data structure.
8781  *
8782  * This routine is invoked to post rpi header templates to the
8783  * port for those SLI4 ports that do not support extents.  This routine
8784  * posts a PAGE_SIZE memory region to the port to hold up to
8785  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8786  * and should be called only when interrupts are disabled.
8787  *
8788  * Return codes
8789  *      0 - successful
8790  *      -ERROR - otherwise.
8791  **/
8792 int
8793 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8794 {
8795         int rc = 0;
8796         struct lpfc_rpi_hdr *rpi_hdr;
8797
8798         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8799         if (!phba->sli4_hba.rpi_hdrs_in_use)
8800                 return rc;
8801         if (phba->sli4_hba.extents_in_use)
8802                 return -EIO;
8803
8804         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8805         if (!rpi_hdr) {
8806                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8807                                 "0391 Error during rpi post operation\n");
8808                 lpfc_sli4_remove_rpis(phba);
8809                 rc = -ENODEV;
8810         }
8811
8812         return rc;
8813 }
8814
8815 /**
8816  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8817  * @phba: pointer to lpfc hba data structure.
8818  *
8819  * This routine is invoked to allocate a single 4KB memory region to
8820  * support rpis and stores them in the phba.  This single region
8821  * provides support for up to 64 rpis.  The region is used globally
8822  * by the device.
8823  *
8824  * Returns:
8825  *   A valid rpi hdr on success.
8826  *   A NULL pointer on any failure.
8827  **/
8828 struct lpfc_rpi_hdr *
8829 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8830 {
8831         uint16_t rpi_limit, curr_rpi_range;
8832         struct lpfc_dmabuf *dmabuf;
8833         struct lpfc_rpi_hdr *rpi_hdr;
8834
8835         /*
8836          * If the SLI4 port supports extents, posting the rpi header isn't
8837          * required.  Set the expected maximum count and let the actual value
8838          * get set when extents are fully allocated.
8839          */
8840         if (!phba->sli4_hba.rpi_hdrs_in_use)
8841                 return NULL;
8842         if (phba->sli4_hba.extents_in_use)
8843                 return NULL;
8844
8845         /* The limit on the logical index is just the max_rpi count. */
8846         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8847
8848         spin_lock_irq(&phba->hbalock);
8849         /*
8850          * Establish the starting RPI in this header block.  The starting
8851          * rpi is normalized to a zero base because the physical rpi is
8852          * port based.
8853          */
8854         curr_rpi_range = phba->sli4_hba.next_rpi;
8855         spin_unlock_irq(&phba->hbalock);
8856
8857         /* Reached full RPI range */
8858         if (curr_rpi_range == rpi_limit)
8859                 return NULL;
8860
8861         /*
8862          * First allocate the protocol header region for the port.  The
8863          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8864          */
8865         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8866         if (!dmabuf)
8867                 return NULL;
8868
8869         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8870                                           LPFC_HDR_TEMPLATE_SIZE,
8871                                           &dmabuf->phys, GFP_KERNEL);
8872         if (!dmabuf->virt) {
8873                 rpi_hdr = NULL;
8874                 goto err_free_dmabuf;
8875         }
8876
8877         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8878                 rpi_hdr = NULL;
8879                 goto err_free_coherent;
8880         }
8881
8882         /* Save the rpi header data for cleanup later. */
8883         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8884         if (!rpi_hdr)
8885                 goto err_free_coherent;
8886
8887         rpi_hdr->dmabuf = dmabuf;
8888         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8889         rpi_hdr->page_count = 1;
8890         spin_lock_irq(&phba->hbalock);
8891
8892         /* The rpi_hdr stores the logical index only. */
8893         rpi_hdr->start_rpi = curr_rpi_range;
8894         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8895         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8896
8897         spin_unlock_irq(&phba->hbalock);
8898         return rpi_hdr;
8899
8900  err_free_coherent:
8901         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8902                           dmabuf->virt, dmabuf->phys);
8903  err_free_dmabuf:
8904         kfree(dmabuf);
8905         return NULL;
8906 }
8907
8908 /**
8909  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8910  * @phba: pointer to lpfc hba data structure.
8911  *
8912  * This routine is invoked to remove all memory resources allocated
8913  * to support rpis for SLI4 ports not supporting extents. This routine
8914  * presumes the caller has released all rpis consumed by fabric or port
8915  * logins and is prepared to have the header pages removed.
8916  **/
8917 void
8918 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8919 {
8920         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8921
8922         if (!phba->sli4_hba.rpi_hdrs_in_use)
8923                 goto exit;
8924
8925         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8926                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8927                 list_del(&rpi_hdr->list);
8928                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8929                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8930                 kfree(rpi_hdr->dmabuf);
8931                 kfree(rpi_hdr);
8932         }
8933  exit:
8934         /* There are no rpis available to the port now. */
8935         phba->sli4_hba.next_rpi = 0;
8936 }
8937
8938 /**
8939  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8940  * @pdev: pointer to pci device data structure.
8941  *
8942  * This routine is invoked to allocate the driver hba data structure for an
8943  * HBA device. If the allocation is successful, the phba reference to the
8944  * PCI device data structure is set.
8945  *
8946  * Return codes
8947  *      pointer to @phba - successful
8948  *      NULL - error
8949  **/
8950 static struct lpfc_hba *
8951 lpfc_hba_alloc(struct pci_dev *pdev)
8952 {
8953         struct lpfc_hba *phba;
8954
8955         /* Allocate memory for HBA structure */
8956         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8957         if (!phba) {
8958                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8959                 return NULL;
8960         }
8961
8962         /* Set reference to PCI device in HBA structure */
8963         phba->pcidev = pdev;
8964
8965         /* Assign an unused board number */
8966         phba->brd_no = lpfc_get_instance();
8967         if (phba->brd_no < 0) {
8968                 kfree(phba);
8969                 return NULL;
8970         }
8971         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8972
8973         spin_lock_init(&phba->ct_ev_lock);
8974         INIT_LIST_HEAD(&phba->ct_ev_waiters);
8975
8976         return phba;
8977 }
8978
8979 /**
8980  * lpfc_hba_free - Free driver hba data structure with a device.
8981  * @phba: pointer to lpfc hba data structure.
8982  *
8983  * This routine is invoked to free the driver hba data structure with an
8984  * HBA device.
8985  **/
8986 static void
8987 lpfc_hba_free(struct lpfc_hba *phba)
8988 {
8989         if (phba->sli_rev == LPFC_SLI_REV4)
8990                 kfree(phba->sli4_hba.hdwq);
8991
8992         /* Release the driver assigned board number */
8993         idr_remove(&lpfc_hba_index, phba->brd_no);
8994
8995         /* Free memory allocated with sli3 rings */
8996         kfree(phba->sli.sli3_ring);
8997         phba->sli.sli3_ring = NULL;
8998
8999         kfree(phba);
9000         return;
9001 }
9002
9003 /**
9004  * lpfc_create_shost - Create hba physical port with associated scsi host.
9005  * @phba: pointer to lpfc hba data structure.
9006  *
9007  * This routine is invoked to create HBA physical port and associate a SCSI
9008  * host with it.
9009  *
9010  * Return codes
9011  *      0 - successful
9012  *      other values - error
9013  **/
9014 static int
9015 lpfc_create_shost(struct lpfc_hba *phba)
9016 {
9017         struct lpfc_vport *vport;
9018         struct Scsi_Host  *shost;
9019
9020         /* Initialize HBA FC structure */
9021         phba->fc_edtov = FF_DEF_EDTOV;
9022         phba->fc_ratov = FF_DEF_RATOV;
9023         phba->fc_altov = FF_DEF_ALTOV;
9024         phba->fc_arbtov = FF_DEF_ARBTOV;
9025
9026         atomic_set(&phba->sdev_cnt, 0);
9027         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9028         if (!vport)
9029                 return -ENODEV;
9030
9031         shost = lpfc_shost_from_vport(vport);
9032         phba->pport = vport;
9033
9034         if (phba->nvmet_support) {
9035                 /* Only 1 vport (pport) will support NVME target */
9036                 phba->targetport = NULL;
9037                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9038                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9039                                 "6076 NVME Target Found\n");
9040         }
9041
9042         lpfc_debugfs_initialize(vport);
9043         /* Put reference to SCSI host to driver's device private data */
9044         pci_set_drvdata(phba->pcidev, shost);
9045
9046         /*
9047          * At this point we are fully registered with PSA. In addition,
9048          * any initial discovery should be completed.
9049          */
9050         vport->load_flag |= FC_ALLOW_FDMI;
9051         if (phba->cfg_enable_SmartSAN ||
9052             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
9053
9054                 /* Setup appropriate attribute masks */
9055                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9056                 if (phba->cfg_enable_SmartSAN)
9057                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9058                 else
9059                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9060         }
9061         return 0;
9062 }
9063
9064 /**
9065  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9066  * @phba: pointer to lpfc hba data structure.
9067  *
9068  * This routine is invoked to destroy HBA physical port and the associated
9069  * SCSI host.
9070  **/
9071 static void
9072 lpfc_destroy_shost(struct lpfc_hba *phba)
9073 {
9074         struct lpfc_vport *vport = phba->pport;
9075
9076         /* Destroy physical port that associated with the SCSI host */
9077         destroy_port(vport);
9078
9079         return;
9080 }
9081
9082 /**
9083  * lpfc_setup_bg - Setup Block guard structures and debug areas.
9084  * @phba: pointer to lpfc hba data structure.
9085  * @shost: the shost to be used to detect Block guard settings.
9086  *
9087  * This routine sets up the local Block guard protocol settings for @shost.
9088  * This routine also allocates memory for debugging bg buffers.
9089  **/
9090 static void
9091 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9092 {
9093         uint32_t old_mask;
9094         uint32_t old_guard;
9095
9096         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9097                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9098                                 "1478 Registering BlockGuard with the "
9099                                 "SCSI layer\n");
9100
9101                 old_mask = phba->cfg_prot_mask;
9102                 old_guard = phba->cfg_prot_guard;
9103
9104                 /* Only allow supported values */
9105                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9106                         SHOST_DIX_TYPE0_PROTECTION |
9107                         SHOST_DIX_TYPE1_PROTECTION);
9108                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9109                                          SHOST_DIX_GUARD_CRC);
9110
9111                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9112                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9113                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9114
9115                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9116                         if ((old_mask != phba->cfg_prot_mask) ||
9117                                 (old_guard != phba->cfg_prot_guard))
9118                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9119                                         "1475 Registering BlockGuard with the "
9120                                         "SCSI layer: mask %d  guard %d\n",
9121                                         phba->cfg_prot_mask,
9122                                         phba->cfg_prot_guard);
9123
9124                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9125                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9126                 } else
9127                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9128                                 "1479 Not Registering BlockGuard with the SCSI "
9129                                 "layer, Bad protection parameters: %d %d\n",
9130                                 old_mask, old_guard);
9131         }
9132 }
9133
9134 /**
9135  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9136  * @phba: pointer to lpfc hba data structure.
9137  *
9138  * This routine is invoked to perform all the necessary post initialization
9139  * setup for the device.
9140  **/
9141 static void
9142 lpfc_post_init_setup(struct lpfc_hba *phba)
9143 {
9144         struct Scsi_Host  *shost;
9145         struct lpfc_adapter_event_header adapter_event;
9146
9147         /* Get the default values for Model Name and Description */
9148         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9149
9150         /*
9151          * hba setup may have changed the hba_queue_depth so we need to
9152          * adjust the value of can_queue.
9153          */
9154         shost = pci_get_drvdata(phba->pcidev);
9155         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9156
9157         lpfc_host_attrib_init(shost);
9158
9159         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9160                 spin_lock_irq(shost->host_lock);
9161                 lpfc_poll_start_timer(phba);
9162                 spin_unlock_irq(shost->host_lock);
9163         }
9164
9165         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9166                         "0428 Perform SCSI scan\n");
9167         /* Send board arrival event to upper layer */
9168         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9169         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9170         fc_host_post_vendor_event(shost, fc_get_event_number(),
9171                                   sizeof(adapter_event),
9172                                   (char *) &adapter_event,
9173                                   LPFC_NL_VENDOR_ID);
9174         return;
9175 }
9176
9177 /**
9178  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9179  * @phba: pointer to lpfc hba data structure.
9180  *
9181  * This routine is invoked to set up the PCI device memory space for device
9182  * with SLI-3 interface spec.
9183  *
9184  * Return codes
9185  *      0 - successful
9186  *      other values - error
9187  **/
9188 static int
9189 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9190 {
9191         struct pci_dev *pdev = phba->pcidev;
9192         unsigned long bar0map_len, bar2map_len;
9193         int i, hbq_count;
9194         void *ptr;
9195         int error;
9196
9197         if (!pdev)
9198                 return -ENODEV;
9199
9200         /* Set the device DMA mask size */
9201         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9202         if (error)
9203                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9204         if (error)
9205                 return error;
9206         error = -ENODEV;
9207
9208         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9209          * required by each mapping.
9210          */
9211         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9212         bar0map_len = pci_resource_len(pdev, 0);
9213
9214         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9215         bar2map_len = pci_resource_len(pdev, 2);
9216
9217         /* Map HBA SLIM to a kernel virtual address. */
9218         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9219         if (!phba->slim_memmap_p) {
9220                 dev_printk(KERN_ERR, &pdev->dev,
9221                            "ioremap failed for SLIM memory.\n");
9222                 goto out;
9223         }
9224
9225         /* Map HBA Control Registers to a kernel virtual address. */
9226         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9227         if (!phba->ctrl_regs_memmap_p) {
9228                 dev_printk(KERN_ERR, &pdev->dev,
9229                            "ioremap failed for HBA control registers.\n");
9230                 goto out_iounmap_slim;
9231         }
9232
9233         /* Allocate memory for SLI-2 structures */
9234         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9235                                                &phba->slim2p.phys, GFP_KERNEL);
9236         if (!phba->slim2p.virt)
9237                 goto out_iounmap;
9238
9239         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9240         phba->mbox_ext = (phba->slim2p.virt +
9241                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9242         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9243         phba->IOCBs = (phba->slim2p.virt +
9244                        offsetof(struct lpfc_sli2_slim, IOCBs));
9245
9246         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9247                                                  lpfc_sli_hbq_size(),
9248                                                  &phba->hbqslimp.phys,
9249                                                  GFP_KERNEL);
9250         if (!phba->hbqslimp.virt)
9251                 goto out_free_slim;
9252
9253         hbq_count = lpfc_sli_hbq_count();
9254         ptr = phba->hbqslimp.virt;
9255         for (i = 0; i < hbq_count; ++i) {
9256                 phba->hbqs[i].hbq_virt = ptr;
9257                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9258                 ptr += (lpfc_hbq_defs[i]->entry_count *
9259                         sizeof(struct lpfc_hbq_entry));
9260         }
9261         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9262         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9263
9264         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9265
9266         phba->MBslimaddr = phba->slim_memmap_p;
9267         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9268         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9269         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9270         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9271
9272         return 0;
9273
9274 out_free_slim:
9275         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9276                           phba->slim2p.virt, phba->slim2p.phys);
9277 out_iounmap:
9278         iounmap(phba->ctrl_regs_memmap_p);
9279 out_iounmap_slim:
9280         iounmap(phba->slim_memmap_p);
9281 out:
9282         return error;
9283 }
9284
9285 /**
9286  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9287  * @phba: pointer to lpfc hba data structure.
9288  *
9289  * This routine is invoked to unset the PCI device memory space for device
9290  * with SLI-3 interface spec.
9291  **/
9292 static void
9293 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9294 {
9295         struct pci_dev *pdev;
9296
9297         /* Obtain PCI device reference */
9298         if (!phba->pcidev)
9299                 return;
9300         else
9301                 pdev = phba->pcidev;
9302
9303         /* Free coherent DMA memory allocated */
9304         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9305                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9306         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9307                           phba->slim2p.virt, phba->slim2p.phys);
9308
9309         /* I/O memory unmap */
9310         iounmap(phba->ctrl_regs_memmap_p);
9311         iounmap(phba->slim_memmap_p);
9312
9313         return;
9314 }
9315
9316 /**
9317  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9318  * @phba: pointer to lpfc hba data structure.
9319  *
9320  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9321  * done and check status.
9322  *
9323  * Return 0 if successful, otherwise -ENODEV.
9324  **/
9325 int
9326 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9327 {
9328         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9329         struct lpfc_register reg_data;
9330         int i, port_error = 0;
9331         uint32_t if_type;
9332
9333         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9334         memset(&reg_data, 0, sizeof(reg_data));
9335         if (!phba->sli4_hba.PSMPHRregaddr)
9336                 return -ENODEV;
9337
9338         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9339         for (i = 0; i < 3000; i++) {
9340                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9341                         &portsmphr_reg.word0) ||
9342                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9343                         /* Port has a fatal POST error, break out */
9344                         port_error = -ENODEV;
9345                         break;
9346                 }
9347                 if (LPFC_POST_STAGE_PORT_READY ==
9348                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9349                         break;
9350                 msleep(10);
9351         }
9352
9353         /*
9354          * If there was a port error during POST, then don't proceed with
9355          * other register reads as the data may not be valid.  Just exit.
9356          */
9357         if (port_error) {
9358                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9359                         "1408 Port Failed POST - portsmphr=0x%x, "
9360                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9361                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9362                         portsmphr_reg.word0,
9363                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9364                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9365                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9366                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9367                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9368                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9369                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9370                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9371         } else {
9372                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9373                                 "2534 Device Info: SLIFamily=0x%x, "
9374                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9375                                 "SLIHint_2=0x%x, FT=0x%x\n",
9376                                 bf_get(lpfc_sli_intf_sli_family,
9377                                        &phba->sli4_hba.sli_intf),
9378                                 bf_get(lpfc_sli_intf_slirev,
9379                                        &phba->sli4_hba.sli_intf),
9380                                 bf_get(lpfc_sli_intf_if_type,
9381                                        &phba->sli4_hba.sli_intf),
9382                                 bf_get(lpfc_sli_intf_sli_hint1,
9383                                        &phba->sli4_hba.sli_intf),
9384                                 bf_get(lpfc_sli_intf_sli_hint2,
9385                                        &phba->sli4_hba.sli_intf),
9386                                 bf_get(lpfc_sli_intf_func_type,
9387                                        &phba->sli4_hba.sli_intf));
9388                 /*
9389                  * Check for other Port errors during the initialization
9390                  * process.  Fail the load if the port did not come up
9391                  * correctly.
9392                  */
9393                 if_type = bf_get(lpfc_sli_intf_if_type,
9394                                  &phba->sli4_hba.sli_intf);
9395                 switch (if_type) {
9396                 case LPFC_SLI_INTF_IF_TYPE_0:
9397                         phba->sli4_hba.ue_mask_lo =
9398                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9399                         phba->sli4_hba.ue_mask_hi =
9400                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9401                         uerrlo_reg.word0 =
9402                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9403                         uerrhi_reg.word0 =
9404                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9405                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9406                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9407                                 lpfc_printf_log(phba, KERN_ERR,
9408                                                 LOG_TRACE_EVENT,
9409                                                 "1422 Unrecoverable Error "
9410                                                 "Detected during POST "
9411                                                 "uerr_lo_reg=0x%x, "
9412                                                 "uerr_hi_reg=0x%x, "
9413                                                 "ue_mask_lo_reg=0x%x, "
9414                                                 "ue_mask_hi_reg=0x%x\n",
9415                                                 uerrlo_reg.word0,
9416                                                 uerrhi_reg.word0,
9417                                                 phba->sli4_hba.ue_mask_lo,
9418                                                 phba->sli4_hba.ue_mask_hi);
9419                                 port_error = -ENODEV;
9420                         }
9421                         break;
9422                 case LPFC_SLI_INTF_IF_TYPE_2:
9423                 case LPFC_SLI_INTF_IF_TYPE_6:
9424                         /* Final checks.  The port status should be clean. */
9425                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9426                                 &reg_data.word0) ||
9427                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
9428                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
9429                                 phba->work_status[0] =
9430                                         readl(phba->sli4_hba.u.if_type2.
9431                                               ERR1regaddr);
9432                                 phba->work_status[1] =
9433                                         readl(phba->sli4_hba.u.if_type2.
9434                                               ERR2regaddr);
9435                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9436                                         "2888 Unrecoverable port error "
9437                                         "following POST: port status reg "
9438                                         "0x%x, port_smphr reg 0x%x, "
9439                                         "error 1=0x%x, error 2=0x%x\n",
9440                                         reg_data.word0,
9441                                         portsmphr_reg.word0,
9442                                         phba->work_status[0],
9443                                         phba->work_status[1]);
9444                                 port_error = -ENODEV;
9445                                 break;
9446                         }
9447
9448                         if (lpfc_pldv_detect &&
9449                             bf_get(lpfc_sli_intf_sli_family,
9450                                    &phba->sli4_hba.sli_intf) ==
9451                                         LPFC_SLI_INTF_FAMILY_G6)
9452                                 pci_write_config_byte(phba->pcidev,
9453                                                       LPFC_SLI_INTF, CFG_PLD);
9454                         break;
9455                 case LPFC_SLI_INTF_IF_TYPE_1:
9456                 default:
9457                         break;
9458                 }
9459         }
9460         return port_error;
9461 }
9462
9463 /**
9464  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9465  * @phba: pointer to lpfc hba data structure.
9466  * @if_type:  The SLI4 interface type getting configured.
9467  *
9468  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9469  * memory map.
9470  **/
9471 static void
9472 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9473 {
9474         switch (if_type) {
9475         case LPFC_SLI_INTF_IF_TYPE_0:
9476                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9477                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9478                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9479                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9480                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9481                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9482                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9483                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9484                 phba->sli4_hba.SLIINTFregaddr =
9485                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9486                 break;
9487         case LPFC_SLI_INTF_IF_TYPE_2:
9488                 phba->sli4_hba.u.if_type2.EQDregaddr =
9489                         phba->sli4_hba.conf_regs_memmap_p +
9490                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9491                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9492                         phba->sli4_hba.conf_regs_memmap_p +
9493                                                 LPFC_CTL_PORT_ER1_OFFSET;
9494                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9495                         phba->sli4_hba.conf_regs_memmap_p +
9496                                                 LPFC_CTL_PORT_ER2_OFFSET;
9497                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9498                         phba->sli4_hba.conf_regs_memmap_p +
9499                                                 LPFC_CTL_PORT_CTL_OFFSET;
9500                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9501                         phba->sli4_hba.conf_regs_memmap_p +
9502                                                 LPFC_CTL_PORT_STA_OFFSET;
9503                 phba->sli4_hba.SLIINTFregaddr =
9504                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9505                 phba->sli4_hba.PSMPHRregaddr =
9506                         phba->sli4_hba.conf_regs_memmap_p +
9507                                                 LPFC_CTL_PORT_SEM_OFFSET;
9508                 phba->sli4_hba.RQDBregaddr =
9509                         phba->sli4_hba.conf_regs_memmap_p +
9510                                                 LPFC_ULP0_RQ_DOORBELL;
9511                 phba->sli4_hba.WQDBregaddr =
9512                         phba->sli4_hba.conf_regs_memmap_p +
9513                                                 LPFC_ULP0_WQ_DOORBELL;
9514                 phba->sli4_hba.CQDBregaddr =
9515                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9516                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9517                 phba->sli4_hba.MQDBregaddr =
9518                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9519                 phba->sli4_hba.BMBXregaddr =
9520                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9521                 break;
9522         case LPFC_SLI_INTF_IF_TYPE_6:
9523                 phba->sli4_hba.u.if_type2.EQDregaddr =
9524                         phba->sli4_hba.conf_regs_memmap_p +
9525                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9526                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9527                         phba->sli4_hba.conf_regs_memmap_p +
9528                                                 LPFC_CTL_PORT_ER1_OFFSET;
9529                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9530                         phba->sli4_hba.conf_regs_memmap_p +
9531                                                 LPFC_CTL_PORT_ER2_OFFSET;
9532                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9533                         phba->sli4_hba.conf_regs_memmap_p +
9534                                                 LPFC_CTL_PORT_CTL_OFFSET;
9535                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9536                         phba->sli4_hba.conf_regs_memmap_p +
9537                                                 LPFC_CTL_PORT_STA_OFFSET;
9538                 phba->sli4_hba.PSMPHRregaddr =
9539                         phba->sli4_hba.conf_regs_memmap_p +
9540                                                 LPFC_CTL_PORT_SEM_OFFSET;
9541                 phba->sli4_hba.BMBXregaddr =
9542                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9543                 break;
9544         case LPFC_SLI_INTF_IF_TYPE_1:
9545         default:
9546                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9547                            "FATAL - unsupported SLI4 interface type - %d\n",
9548                            if_type);
9549                 break;
9550         }
9551 }
9552
9553 /**
9554  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9555  * @phba: pointer to lpfc hba data structure.
9556  * @if_type: sli if type to operate on.
9557  *
9558  * This routine is invoked to set up SLI4 BAR1 register memory map.
9559  **/
9560 static void
9561 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9562 {
9563         switch (if_type) {
9564         case LPFC_SLI_INTF_IF_TYPE_0:
9565                 phba->sli4_hba.PSMPHRregaddr =
9566                         phba->sli4_hba.ctrl_regs_memmap_p +
9567                         LPFC_SLIPORT_IF0_SMPHR;
9568                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9569                         LPFC_HST_ISR0;
9570                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9571                         LPFC_HST_IMR0;
9572                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9573                         LPFC_HST_ISCR0;
9574                 break;
9575         case LPFC_SLI_INTF_IF_TYPE_6:
9576                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9577                         LPFC_IF6_RQ_DOORBELL;
9578                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9579                         LPFC_IF6_WQ_DOORBELL;
9580                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9581                         LPFC_IF6_CQ_DOORBELL;
9582                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9583                         LPFC_IF6_EQ_DOORBELL;
9584                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9585                         LPFC_IF6_MQ_DOORBELL;
9586                 break;
9587         case LPFC_SLI_INTF_IF_TYPE_2:
9588         case LPFC_SLI_INTF_IF_TYPE_1:
9589         default:
9590                 dev_err(&phba->pcidev->dev,
9591                            "FATAL - unsupported SLI4 interface type - %d\n",
9592                            if_type);
9593                 break;
9594         }
9595 }
9596
9597 /**
9598  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9599  * @phba: pointer to lpfc hba data structure.
9600  * @vf: virtual function number
9601  *
9602  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9603  * based on the given viftual function number, @vf.
9604  *
9605  * Return 0 if successful, otherwise -ENODEV.
9606  **/
9607 static int
9608 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9609 {
9610         if (vf > LPFC_VIR_FUNC_MAX)
9611                 return -ENODEV;
9612
9613         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9614                                 vf * LPFC_VFR_PAGE_SIZE +
9615                                         LPFC_ULP0_RQ_DOORBELL);
9616         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9617                                 vf * LPFC_VFR_PAGE_SIZE +
9618                                         LPFC_ULP0_WQ_DOORBELL);
9619         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9620                                 vf * LPFC_VFR_PAGE_SIZE +
9621                                         LPFC_EQCQ_DOORBELL);
9622         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9623         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9624                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9625         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9626                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9627         return 0;
9628 }
9629
9630 /**
9631  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9632  * @phba: pointer to lpfc hba data structure.
9633  *
9634  * This routine is invoked to create the bootstrap mailbox
9635  * region consistent with the SLI-4 interface spec.  This
9636  * routine allocates all memory necessary to communicate
9637  * mailbox commands to the port and sets up all alignment
9638  * needs.  No locks are expected to be held when calling
9639  * this routine.
9640  *
9641  * Return codes
9642  *      0 - successful
9643  *      -ENOMEM - could not allocated memory.
9644  **/
9645 static int
9646 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9647 {
9648         uint32_t bmbx_size;
9649         struct lpfc_dmabuf *dmabuf;
9650         struct dma_address *dma_address;
9651         uint32_t pa_addr;
9652         uint64_t phys_addr;
9653
9654         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9655         if (!dmabuf)
9656                 return -ENOMEM;
9657
9658         /*
9659          * The bootstrap mailbox region is comprised of 2 parts
9660          * plus an alignment restriction of 16 bytes.
9661          */
9662         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9663         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9664                                           &dmabuf->phys, GFP_KERNEL);
9665         if (!dmabuf->virt) {
9666                 kfree(dmabuf);
9667                 return -ENOMEM;
9668         }
9669
9670         /*
9671          * Initialize the bootstrap mailbox pointers now so that the register
9672          * operations are simple later.  The mailbox dma address is required
9673          * to be 16-byte aligned.  Also align the virtual memory as each
9674          * maibox is copied into the bmbx mailbox region before issuing the
9675          * command to the port.
9676          */
9677         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9678         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9679
9680         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9681                                               LPFC_ALIGN_16_BYTE);
9682         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9683                                               LPFC_ALIGN_16_BYTE);
9684
9685         /*
9686          * Set the high and low physical addresses now.  The SLI4 alignment
9687          * requirement is 16 bytes and the mailbox is posted to the port
9688          * as two 30-bit addresses.  The other data is a bit marking whether
9689          * the 30-bit address is the high or low address.
9690          * Upcast bmbx aphys to 64bits so shift instruction compiles
9691          * clean on 32 bit machines.
9692          */
9693         dma_address = &phba->sli4_hba.bmbx.dma_address;
9694         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9695         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9696         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9697                                            LPFC_BMBX_BIT1_ADDR_HI);
9698
9699         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9700         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9701                                            LPFC_BMBX_BIT1_ADDR_LO);
9702         return 0;
9703 }
9704
9705 /**
9706  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9707  * @phba: pointer to lpfc hba data structure.
9708  *
9709  * This routine is invoked to teardown the bootstrap mailbox
9710  * region and release all host resources. This routine requires
9711  * the caller to ensure all mailbox commands recovered, no
9712  * additional mailbox comands are sent, and interrupts are disabled
9713  * before calling this routine.
9714  *
9715  **/
9716 static void
9717 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9718 {
9719         dma_free_coherent(&phba->pcidev->dev,
9720                           phba->sli4_hba.bmbx.bmbx_size,
9721                           phba->sli4_hba.bmbx.dmabuf->virt,
9722                           phba->sli4_hba.bmbx.dmabuf->phys);
9723
9724         kfree(phba->sli4_hba.bmbx.dmabuf);
9725         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9726 }
9727
9728 static const char * const lpfc_topo_to_str[] = {
9729         "Loop then P2P",
9730         "Loopback",
9731         "P2P Only",
9732         "Unsupported",
9733         "Loop Only",
9734         "Unsupported",
9735         "P2P then Loop",
9736 };
9737
9738 #define LINK_FLAGS_DEF  0x0
9739 #define LINK_FLAGS_P2P  0x1
9740 #define LINK_FLAGS_LOOP 0x2
9741 /**
9742  * lpfc_map_topology - Map the topology read from READ_CONFIG
9743  * @phba: pointer to lpfc hba data structure.
9744  * @rd_config: pointer to read config data
9745  *
9746  * This routine is invoked to map the topology values as read
9747  * from the read config mailbox command. If the persistent
9748  * topology feature is supported, the firmware will provide the
9749  * saved topology information to be used in INIT_LINK
9750  **/
9751 static void
9752 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9753 {
9754         u8 ptv, tf, pt;
9755
9756         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9757         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9758         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9759
9760         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9761                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9762                          ptv, tf, pt);
9763         if (!ptv) {
9764                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9765                                 "2019 FW does not support persistent topology "
9766                                 "Using driver parameter defined value [%s]",
9767                                 lpfc_topo_to_str[phba->cfg_topology]);
9768                 return;
9769         }
9770         /* FW supports persistent topology - override module parameter value */
9771         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9772
9773         /* if ASIC_GEN_NUM >= 0xC) */
9774         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9775                     LPFC_SLI_INTF_IF_TYPE_6) ||
9776             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9777                     LPFC_SLI_INTF_FAMILY_G6)) {
9778                 if (!tf) {
9779                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9780                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9781                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9782                 } else {
9783                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9784                 }
9785         } else { /* G5 */
9786                 if (tf) {
9787                         /* If topology failover set - pt is '0' or '1' */
9788                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9789                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9790                 } else {
9791                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9792                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9793                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9794                 }
9795         }
9796         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9797                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9798                                 "2020 Using persistent topology value [%s]",
9799                                 lpfc_topo_to_str[phba->cfg_topology]);
9800         } else {
9801                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9802                                 "2021 Invalid topology values from FW "
9803                                 "Using driver parameter defined value [%s]",
9804                                 lpfc_topo_to_str[phba->cfg_topology]);
9805         }
9806 }
9807
9808 /**
9809  * lpfc_sli4_read_config - Get the config parameters.
9810  * @phba: pointer to lpfc hba data structure.
9811  *
9812  * This routine is invoked to read the configuration parameters from the HBA.
9813  * The configuration parameters are used to set the base and maximum values
9814  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9815  * allocation for the port.
9816  *
9817  * Return codes
9818  *      0 - successful
9819  *      -ENOMEM - No available memory
9820  *      -EIO - The mailbox failed to complete successfully.
9821  **/
9822 int
9823 lpfc_sli4_read_config(struct lpfc_hba *phba)
9824 {
9825         LPFC_MBOXQ_t *pmb;
9826         struct lpfc_mbx_read_config *rd_config;
9827         union  lpfc_sli4_cfg_shdr *shdr;
9828         uint32_t shdr_status, shdr_add_status;
9829         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9830         struct lpfc_rsrc_desc_fcfcoe *desc;
9831         char *pdesc_0;
9832         uint16_t forced_link_speed;
9833         uint32_t if_type, qmin;
9834         int length, i, rc = 0, rc2;
9835
9836         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9837         if (!pmb) {
9838                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9839                                 "2011 Unable to allocate memory for issuing "
9840                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9841                 return -ENOMEM;
9842         }
9843
9844         lpfc_read_config(phba, pmb);
9845
9846         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9847         if (rc != MBX_SUCCESS) {
9848                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9849                                 "2012 Mailbox failed , mbxCmd x%x "
9850                                 "READ_CONFIG, mbxStatus x%x\n",
9851                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9852                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9853                 rc = -EIO;
9854         } else {
9855                 rd_config = &pmb->u.mqe.un.rd_config;
9856                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9857                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9858                         phba->sli4_hba.lnk_info.lnk_tp =
9859                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9860                         phba->sli4_hba.lnk_info.lnk_no =
9861                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9862                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9863                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9864                                         phba->sli4_hba.lnk_info.lnk_tp,
9865                                         phba->sli4_hba.lnk_info.lnk_no);
9866                 } else
9867                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9868                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9869                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9870                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9871                         phba->bbcredit_support = 1;
9872                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9873                 }
9874
9875                 phba->sli4_hba.conf_trunk =
9876                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9877                 phba->sli4_hba.extents_in_use =
9878                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9879                 phba->sli4_hba.max_cfg_param.max_xri =
9880                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9881                 /* Reduce resource usage in kdump environment */
9882                 if (is_kdump_kernel() &&
9883                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9884                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9885                 phba->sli4_hba.max_cfg_param.xri_base =
9886                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9887                 phba->sli4_hba.max_cfg_param.max_vpi =
9888                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9889                 /* Limit the max we support */
9890                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9891                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9892                 phba->sli4_hba.max_cfg_param.vpi_base =
9893                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9894                 phba->sli4_hba.max_cfg_param.max_rpi =
9895                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9896                 phba->sli4_hba.max_cfg_param.rpi_base =
9897                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9898                 phba->sli4_hba.max_cfg_param.max_vfi =
9899                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9900                 phba->sli4_hba.max_cfg_param.vfi_base =
9901                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9902                 phba->sli4_hba.max_cfg_param.max_fcfi =
9903                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9904                 phba->sli4_hba.max_cfg_param.max_eq =
9905                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9906                 phba->sli4_hba.max_cfg_param.max_rq =
9907                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9908                 phba->sli4_hba.max_cfg_param.max_wq =
9909                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9910                 phba->sli4_hba.max_cfg_param.max_cq =
9911                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9912                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9913                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9914                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9915                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9916                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9917                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9918                 phba->max_vports = phba->max_vpi;
9919
9920                 /* Next decide on FPIN or Signal E2E CGN support
9921                  * For congestion alarms and warnings valid combination are:
9922                  * 1. FPIN alarms / FPIN warnings
9923                  * 2. Signal alarms / Signal warnings
9924                  * 3. FPIN alarms / Signal warnings
9925                  * 4. Signal alarms / FPIN warnings
9926                  *
9927                  * Initialize the adapter frequency to 100 mSecs
9928                  */
9929                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9930                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9931                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9932
9933                 if (lpfc_use_cgn_signal) {
9934                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9935                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9936                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9937                         }
9938                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9939                                 /* MUST support both alarm and warning
9940                                  * because EDC does not support alarm alone.
9941                                  */
9942                                 if (phba->cgn_reg_signal !=
9943                                     EDC_CG_SIG_WARN_ONLY) {
9944                                         /* Must support both or none */
9945                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9946                                         phba->cgn_reg_signal =
9947                                                 EDC_CG_SIG_NOTSUPPORTED;
9948                                 } else {
9949                                         phba->cgn_reg_signal =
9950                                                 EDC_CG_SIG_WARN_ALARM;
9951                                         phba->cgn_reg_fpin =
9952                                                 LPFC_CGN_FPIN_NONE;
9953                                 }
9954                         }
9955                 }
9956
9957                 /* Set the congestion initial signal and fpin values. */
9958                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9959                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9960
9961                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9962                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9963                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9964
9965                 lpfc_map_topology(phba, rd_config);
9966                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9967                                 "2003 cfg params Extents? %d "
9968                                 "XRI(B:%d M:%d), "
9969                                 "VPI(B:%d M:%d) "
9970                                 "VFI(B:%d M:%d) "
9971                                 "RPI(B:%d M:%d) "
9972                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9973                                 phba->sli4_hba.extents_in_use,
9974                                 phba->sli4_hba.max_cfg_param.xri_base,
9975                                 phba->sli4_hba.max_cfg_param.max_xri,
9976                                 phba->sli4_hba.max_cfg_param.vpi_base,
9977                                 phba->sli4_hba.max_cfg_param.max_vpi,
9978                                 phba->sli4_hba.max_cfg_param.vfi_base,
9979                                 phba->sli4_hba.max_cfg_param.max_vfi,
9980                                 phba->sli4_hba.max_cfg_param.rpi_base,
9981                                 phba->sli4_hba.max_cfg_param.max_rpi,
9982                                 phba->sli4_hba.max_cfg_param.max_fcfi,
9983                                 phba->sli4_hba.max_cfg_param.max_eq,
9984                                 phba->sli4_hba.max_cfg_param.max_cq,
9985                                 phba->sli4_hba.max_cfg_param.max_wq,
9986                                 phba->sli4_hba.max_cfg_param.max_rq,
9987                                 phba->lmt);
9988
9989                 /*
9990                  * Calculate queue resources based on how
9991                  * many WQ/CQ/EQs are available.
9992                  */
9993                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9994                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9995                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
9996                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9997                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
9998                 /*
9999                  * Whats left after this can go toward NVME / FCP.
10000                  * The minus 4 accounts for ELS, NVME LS, MBOX
10001                  * plus one extra. When configured for
10002                  * NVMET, FCP io channel WQs are not created.
10003                  */
10004                 qmin -= 4;
10005
10006                 /* Check to see if there is enough for NVME */
10007                 if ((phba->cfg_irq_chann > qmin) ||
10008                     (phba->cfg_hdw_queue > qmin)) {
10009                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10010                                         "2005 Reducing Queues - "
10011                                         "FW resource limitation: "
10012                                         "WQ %d CQ %d EQ %d: min %d: "
10013                                         "IRQ %d HDWQ %d\n",
10014                                         phba->sli4_hba.max_cfg_param.max_wq,
10015                                         phba->sli4_hba.max_cfg_param.max_cq,
10016                                         phba->sli4_hba.max_cfg_param.max_eq,
10017                                         qmin, phba->cfg_irq_chann,
10018                                         phba->cfg_hdw_queue);
10019
10020                         if (phba->cfg_irq_chann > qmin)
10021                                 phba->cfg_irq_chann = qmin;
10022                         if (phba->cfg_hdw_queue > qmin)
10023                                 phba->cfg_hdw_queue = qmin;
10024                 }
10025         }
10026
10027         if (rc)
10028                 goto read_cfg_out;
10029
10030         /* Update link speed if forced link speed is supported */
10031         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10032         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10033                 forced_link_speed =
10034                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10035                 if (forced_link_speed) {
10036                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10037
10038                         switch (forced_link_speed) {
10039                         case LINK_SPEED_1G:
10040                                 phba->cfg_link_speed =
10041                                         LPFC_USER_LINK_SPEED_1G;
10042                                 break;
10043                         case LINK_SPEED_2G:
10044                                 phba->cfg_link_speed =
10045                                         LPFC_USER_LINK_SPEED_2G;
10046                                 break;
10047                         case LINK_SPEED_4G:
10048                                 phba->cfg_link_speed =
10049                                         LPFC_USER_LINK_SPEED_4G;
10050                                 break;
10051                         case LINK_SPEED_8G:
10052                                 phba->cfg_link_speed =
10053                                         LPFC_USER_LINK_SPEED_8G;
10054                                 break;
10055                         case LINK_SPEED_10G:
10056                                 phba->cfg_link_speed =
10057                                         LPFC_USER_LINK_SPEED_10G;
10058                                 break;
10059                         case LINK_SPEED_16G:
10060                                 phba->cfg_link_speed =
10061                                         LPFC_USER_LINK_SPEED_16G;
10062                                 break;
10063                         case LINK_SPEED_32G:
10064                                 phba->cfg_link_speed =
10065                                         LPFC_USER_LINK_SPEED_32G;
10066                                 break;
10067                         case LINK_SPEED_64G:
10068                                 phba->cfg_link_speed =
10069                                         LPFC_USER_LINK_SPEED_64G;
10070                                 break;
10071                         case 0xffff:
10072                                 phba->cfg_link_speed =
10073                                         LPFC_USER_LINK_SPEED_AUTO;
10074                                 break;
10075                         default:
10076                                 lpfc_printf_log(phba, KERN_ERR,
10077                                                 LOG_TRACE_EVENT,
10078                                                 "0047 Unrecognized link "
10079                                                 "speed : %d\n",
10080                                                 forced_link_speed);
10081                                 phba->cfg_link_speed =
10082                                         LPFC_USER_LINK_SPEED_AUTO;
10083                         }
10084                 }
10085         }
10086
10087         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
10088         length = phba->sli4_hba.max_cfg_param.max_xri -
10089                         lpfc_sli4_get_els_iocb_cnt(phba);
10090         if (phba->cfg_hba_queue_depth > length) {
10091                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10092                                 "3361 HBA queue depth changed from %d to %d\n",
10093                                 phba->cfg_hba_queue_depth, length);
10094                 phba->cfg_hba_queue_depth = length;
10095         }
10096
10097         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10098             LPFC_SLI_INTF_IF_TYPE_2)
10099                 goto read_cfg_out;
10100
10101         /* get the pf# and vf# for SLI4 if_type 2 port */
10102         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10103                   sizeof(struct lpfc_sli4_cfg_mhdr));
10104         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10105                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10106                          length, LPFC_SLI4_MBX_EMBED);
10107
10108         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10109         shdr = (union lpfc_sli4_cfg_shdr *)
10110                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10111         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10112         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10113         if (rc2 || shdr_status || shdr_add_status) {
10114                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10115                                 "3026 Mailbox failed , mbxCmd x%x "
10116                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10117                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10118                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10119                 goto read_cfg_out;
10120         }
10121
10122         /* search for fc_fcoe resrouce descriptor */
10123         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10124
10125         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10126         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10127         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10128         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10129                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10130         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10131                 goto read_cfg_out;
10132
10133         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10134                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10135                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10136                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10137                         phba->sli4_hba.iov.pf_number =
10138                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10139                         phba->sli4_hba.iov.vf_number =
10140                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10141                         break;
10142                 }
10143         }
10144
10145         if (i < LPFC_RSRC_DESC_MAX_NUM)
10146                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10147                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10148                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10149                                 phba->sli4_hba.iov.vf_number);
10150         else
10151                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10152                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10153                                 "Resource Descriptor:x%x\n",
10154                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10155
10156 read_cfg_out:
10157         mempool_free(pmb, phba->mbox_mem_pool);
10158         return rc;
10159 }
10160
10161 /**
10162  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10163  * @phba: pointer to lpfc hba data structure.
10164  *
10165  * This routine is invoked to setup the port-side endian order when
10166  * the port if_type is 0.  This routine has no function for other
10167  * if_types.
10168  *
10169  * Return codes
10170  *      0 - successful
10171  *      -ENOMEM - No available memory
10172  *      -EIO - The mailbox failed to complete successfully.
10173  **/
10174 static int
10175 lpfc_setup_endian_order(struct lpfc_hba *phba)
10176 {
10177         LPFC_MBOXQ_t *mboxq;
10178         uint32_t if_type, rc = 0;
10179         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10180                                       HOST_ENDIAN_HIGH_WORD1};
10181
10182         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10183         switch (if_type) {
10184         case LPFC_SLI_INTF_IF_TYPE_0:
10185                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10186                                                        GFP_KERNEL);
10187                 if (!mboxq) {
10188                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10189                                         "0492 Unable to allocate memory for "
10190                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10191                                         "command\n");
10192                         return -ENOMEM;
10193                 }
10194
10195                 /*
10196                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10197                  * two words to contain special data values and no other data.
10198                  */
10199                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10200                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10201                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10202                 if (rc != MBX_SUCCESS) {
10203                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10204                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10205                                         "failed with status x%x\n",
10206                                         rc);
10207                         rc = -EIO;
10208                 }
10209                 mempool_free(mboxq, phba->mbox_mem_pool);
10210                 break;
10211         case LPFC_SLI_INTF_IF_TYPE_6:
10212         case LPFC_SLI_INTF_IF_TYPE_2:
10213         case LPFC_SLI_INTF_IF_TYPE_1:
10214         default:
10215                 break;
10216         }
10217         return rc;
10218 }
10219
10220 /**
10221  * lpfc_sli4_queue_verify - Verify and update EQ counts
10222  * @phba: pointer to lpfc hba data structure.
10223  *
10224  * This routine is invoked to check the user settable queue counts for EQs.
10225  * After this routine is called the counts will be set to valid values that
10226  * adhere to the constraints of the system's interrupt vectors and the port's
10227  * queue resources.
10228  *
10229  * Return codes
10230  *      0 - successful
10231  *      -ENOMEM - No available memory
10232  **/
10233 static int
10234 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10235 {
10236         /*
10237          * Sanity check for configured queue parameters against the run-time
10238          * device parameters
10239          */
10240
10241         if (phba->nvmet_support) {
10242                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10243                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10244                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10245                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10246         }
10247
10248         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10249                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10250                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10251                         phba->cfg_nvmet_mrq);
10252
10253         /* Get EQ depth from module parameter, fake the default for now */
10254         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10255         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10256
10257         /* Get CQ depth from module parameter, fake the default for now */
10258         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10259         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10260         return 0;
10261 }
10262
10263 static int
10264 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10265 {
10266         struct lpfc_queue *qdesc;
10267         u32 wqesize;
10268         int cpu;
10269
10270         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10271         /* Create Fast Path IO CQs */
10272         if (phba->enab_exp_wqcq_pages)
10273                 /* Increase the CQ size when WQEs contain an embedded cdb */
10274                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10275                                               phba->sli4_hba.cq_esize,
10276                                               LPFC_CQE_EXP_COUNT, cpu);
10277
10278         else
10279                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10280                                               phba->sli4_hba.cq_esize,
10281                                               phba->sli4_hba.cq_ecount, cpu);
10282         if (!qdesc) {
10283                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10284                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10285                                 idx);
10286                 return 1;
10287         }
10288         qdesc->qe_valid = 1;
10289         qdesc->hdwq = idx;
10290         qdesc->chann = cpu;
10291         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10292
10293         /* Create Fast Path IO WQs */
10294         if (phba->enab_exp_wqcq_pages) {
10295                 /* Increase the WQ size when WQEs contain an embedded cdb */
10296                 wqesize = (phba->fcp_embed_io) ?
10297                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10298                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10299                                               wqesize,
10300                                               LPFC_WQE_EXP_COUNT, cpu);
10301         } else
10302                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10303                                               phba->sli4_hba.wq_esize,
10304                                               phba->sli4_hba.wq_ecount, cpu);
10305
10306         if (!qdesc) {
10307                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10308                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10309                                 idx);
10310                 return 1;
10311         }
10312         qdesc->hdwq = idx;
10313         qdesc->chann = cpu;
10314         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10315         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10316         return 0;
10317 }
10318
10319 /**
10320  * lpfc_sli4_queue_create - Create all the SLI4 queues
10321  * @phba: pointer to lpfc hba data structure.
10322  *
10323  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10324  * operation. For each SLI4 queue type, the parameters such as queue entry
10325  * count (queue depth) shall be taken from the module parameter. For now,
10326  * we just use some constant number as place holder.
10327  *
10328  * Return codes
10329  *      0 - successful
10330  *      -ENOMEM - No availble memory
10331  *      -EIO - The mailbox failed to complete successfully.
10332  **/
10333 int
10334 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10335 {
10336         struct lpfc_queue *qdesc;
10337         int idx, cpu, eqcpu;
10338         struct lpfc_sli4_hdw_queue *qp;
10339         struct lpfc_vector_map_info *cpup;
10340         struct lpfc_vector_map_info *eqcpup;
10341         struct lpfc_eq_intr_info *eqi;
10342
10343         /*
10344          * Create HBA Record arrays.
10345          * Both NVME and FCP will share that same vectors / EQs
10346          */
10347         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10348         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10349         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10350         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10351         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10352         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10353         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10354         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10355         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10356         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10357
10358         if (!phba->sli4_hba.hdwq) {
10359                 phba->sli4_hba.hdwq = kcalloc(
10360                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10361                         GFP_KERNEL);
10362                 if (!phba->sli4_hba.hdwq) {
10363                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10364                                         "6427 Failed allocate memory for "
10365                                         "fast-path Hardware Queue array\n");
10366                         goto out_error;
10367                 }
10368                 /* Prepare hardware queues to take IO buffers */
10369                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10370                         qp = &phba->sli4_hba.hdwq[idx];
10371                         spin_lock_init(&qp->io_buf_list_get_lock);
10372                         spin_lock_init(&qp->io_buf_list_put_lock);
10373                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10374                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10375                         qp->get_io_bufs = 0;
10376                         qp->put_io_bufs = 0;
10377                         qp->total_io_bufs = 0;
10378                         spin_lock_init(&qp->abts_io_buf_list_lock);
10379                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10380                         qp->abts_scsi_io_bufs = 0;
10381                         qp->abts_nvme_io_bufs = 0;
10382                         INIT_LIST_HEAD(&qp->sgl_list);
10383                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10384                         spin_lock_init(&qp->hdwq_lock);
10385                 }
10386         }
10387
10388         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10389                 if (phba->nvmet_support) {
10390                         phba->sli4_hba.nvmet_cqset = kcalloc(
10391                                         phba->cfg_nvmet_mrq,
10392                                         sizeof(struct lpfc_queue *),
10393                                         GFP_KERNEL);
10394                         if (!phba->sli4_hba.nvmet_cqset) {
10395                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10396                                         "3121 Fail allocate memory for "
10397                                         "fast-path CQ set array\n");
10398                                 goto out_error;
10399                         }
10400                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10401                                         phba->cfg_nvmet_mrq,
10402                                         sizeof(struct lpfc_queue *),
10403                                         GFP_KERNEL);
10404                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10405                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10406                                         "3122 Fail allocate memory for "
10407                                         "fast-path RQ set hdr array\n");
10408                                 goto out_error;
10409                         }
10410                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10411                                         phba->cfg_nvmet_mrq,
10412                                         sizeof(struct lpfc_queue *),
10413                                         GFP_KERNEL);
10414                         if (!phba->sli4_hba.nvmet_mrq_data) {
10415                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10416                                         "3124 Fail allocate memory for "
10417                                         "fast-path RQ set data array\n");
10418                                 goto out_error;
10419                         }
10420                 }
10421         }
10422
10423         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10424
10425         /* Create HBA Event Queues (EQs) */
10426         for_each_present_cpu(cpu) {
10427                 /* We only want to create 1 EQ per vector, even though
10428                  * multiple CPUs might be using that vector. so only
10429                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10430                  */
10431                 cpup = &phba->sli4_hba.cpu_map[cpu];
10432                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10433                         continue;
10434
10435                 /* Get a ptr to the Hardware Queue associated with this CPU */
10436                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10437
10438                 /* Allocate an EQ */
10439                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10440                                               phba->sli4_hba.eq_esize,
10441                                               phba->sli4_hba.eq_ecount, cpu);
10442                 if (!qdesc) {
10443                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10444                                         "0497 Failed allocate EQ (%d)\n",
10445                                         cpup->hdwq);
10446                         goto out_error;
10447                 }
10448                 qdesc->qe_valid = 1;
10449                 qdesc->hdwq = cpup->hdwq;
10450                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10451                 qdesc->last_cpu = qdesc->chann;
10452
10453                 /* Save the allocated EQ in the Hardware Queue */
10454                 qp->hba_eq = qdesc;
10455
10456                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10457                 list_add(&qdesc->cpu_list, &eqi->list);
10458         }
10459
10460         /* Now we need to populate the other Hardware Queues, that share
10461          * an IRQ vector, with the associated EQ ptr.
10462          */
10463         for_each_present_cpu(cpu) {
10464                 cpup = &phba->sli4_hba.cpu_map[cpu];
10465
10466                 /* Check for EQ already allocated in previous loop */
10467                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10468                         continue;
10469
10470                 /* Check for multiple CPUs per hdwq */
10471                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10472                 if (qp->hba_eq)
10473                         continue;
10474
10475                 /* We need to share an EQ for this hdwq */
10476                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10477                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10478                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10479         }
10480
10481         /* Allocate IO Path SLI4 CQ/WQs */
10482         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10483                 if (lpfc_alloc_io_wq_cq(phba, idx))
10484                         goto out_error;
10485         }
10486
10487         if (phba->nvmet_support) {
10488                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10489                         cpu = lpfc_find_cpu_handle(phba, idx,
10490                                                    LPFC_FIND_BY_HDWQ);
10491                         qdesc = lpfc_sli4_queue_alloc(phba,
10492                                                       LPFC_DEFAULT_PAGE_SIZE,
10493                                                       phba->sli4_hba.cq_esize,
10494                                                       phba->sli4_hba.cq_ecount,
10495                                                       cpu);
10496                         if (!qdesc) {
10497                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10498                                                 "3142 Failed allocate NVME "
10499                                                 "CQ Set (%d)\n", idx);
10500                                 goto out_error;
10501                         }
10502                         qdesc->qe_valid = 1;
10503                         qdesc->hdwq = idx;
10504                         qdesc->chann = cpu;
10505                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10506                 }
10507         }
10508
10509         /*
10510          * Create Slow Path Completion Queues (CQs)
10511          */
10512
10513         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10514         /* Create slow-path Mailbox Command Complete Queue */
10515         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10516                                       phba->sli4_hba.cq_esize,
10517                                       phba->sli4_hba.cq_ecount, cpu);
10518         if (!qdesc) {
10519                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10520                                 "0500 Failed allocate slow-path mailbox CQ\n");
10521                 goto out_error;
10522         }
10523         qdesc->qe_valid = 1;
10524         phba->sli4_hba.mbx_cq = qdesc;
10525
10526         /* Create slow-path ELS Complete Queue */
10527         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10528                                       phba->sli4_hba.cq_esize,
10529                                       phba->sli4_hba.cq_ecount, cpu);
10530         if (!qdesc) {
10531                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10532                                 "0501 Failed allocate slow-path ELS CQ\n");
10533                 goto out_error;
10534         }
10535         qdesc->qe_valid = 1;
10536         qdesc->chann = cpu;
10537         phba->sli4_hba.els_cq = qdesc;
10538
10539
10540         /*
10541          * Create Slow Path Work Queues (WQs)
10542          */
10543
10544         /* Create Mailbox Command Queue */
10545
10546         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10547                                       phba->sli4_hba.mq_esize,
10548                                       phba->sli4_hba.mq_ecount, cpu);
10549         if (!qdesc) {
10550                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10551                                 "0505 Failed allocate slow-path MQ\n");
10552                 goto out_error;
10553         }
10554         qdesc->chann = cpu;
10555         phba->sli4_hba.mbx_wq = qdesc;
10556
10557         /*
10558          * Create ELS Work Queues
10559          */
10560
10561         /* Create slow-path ELS Work Queue */
10562         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10563                                       phba->sli4_hba.wq_esize,
10564                                       phba->sli4_hba.wq_ecount, cpu);
10565         if (!qdesc) {
10566                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10567                                 "0504 Failed allocate slow-path ELS WQ\n");
10568                 goto out_error;
10569         }
10570         qdesc->chann = cpu;
10571         phba->sli4_hba.els_wq = qdesc;
10572         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10573
10574         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10575                 /* Create NVME LS Complete Queue */
10576                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10577                                               phba->sli4_hba.cq_esize,
10578                                               phba->sli4_hba.cq_ecount, cpu);
10579                 if (!qdesc) {
10580                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10581                                         "6079 Failed allocate NVME LS CQ\n");
10582                         goto out_error;
10583                 }
10584                 qdesc->chann = cpu;
10585                 qdesc->qe_valid = 1;
10586                 phba->sli4_hba.nvmels_cq = qdesc;
10587
10588                 /* Create NVME LS Work Queue */
10589                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10590                                               phba->sli4_hba.wq_esize,
10591                                               phba->sli4_hba.wq_ecount, cpu);
10592                 if (!qdesc) {
10593                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10594                                         "6080 Failed allocate NVME LS WQ\n");
10595                         goto out_error;
10596                 }
10597                 qdesc->chann = cpu;
10598                 phba->sli4_hba.nvmels_wq = qdesc;
10599                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10600         }
10601
10602         /*
10603          * Create Receive Queue (RQ)
10604          */
10605
10606         /* Create Receive Queue for header */
10607         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10608                                       phba->sli4_hba.rq_esize,
10609                                       phba->sli4_hba.rq_ecount, cpu);
10610         if (!qdesc) {
10611                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10612                                 "0506 Failed allocate receive HRQ\n");
10613                 goto out_error;
10614         }
10615         phba->sli4_hba.hdr_rq = qdesc;
10616
10617         /* Create Receive Queue for data */
10618         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10619                                       phba->sli4_hba.rq_esize,
10620                                       phba->sli4_hba.rq_ecount, cpu);
10621         if (!qdesc) {
10622                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10623                                 "0507 Failed allocate receive DRQ\n");
10624                 goto out_error;
10625         }
10626         phba->sli4_hba.dat_rq = qdesc;
10627
10628         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10629             phba->nvmet_support) {
10630                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10631                         cpu = lpfc_find_cpu_handle(phba, idx,
10632                                                    LPFC_FIND_BY_HDWQ);
10633                         /* Create NVMET Receive Queue for header */
10634                         qdesc = lpfc_sli4_queue_alloc(phba,
10635                                                       LPFC_DEFAULT_PAGE_SIZE,
10636                                                       phba->sli4_hba.rq_esize,
10637                                                       LPFC_NVMET_RQE_DEF_COUNT,
10638                                                       cpu);
10639                         if (!qdesc) {
10640                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10641                                                 "3146 Failed allocate "
10642                                                 "receive HRQ\n");
10643                                 goto out_error;
10644                         }
10645                         qdesc->hdwq = idx;
10646                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10647
10648                         /* Only needed for header of RQ pair */
10649                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10650                                                    GFP_KERNEL,
10651                                                    cpu_to_node(cpu));
10652                         if (qdesc->rqbp == NULL) {
10653                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10654                                                 "6131 Failed allocate "
10655                                                 "Header RQBP\n");
10656                                 goto out_error;
10657                         }
10658
10659                         /* Put list in known state in case driver load fails. */
10660                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10661
10662                         /* Create NVMET Receive Queue for data */
10663                         qdesc = lpfc_sli4_queue_alloc(phba,
10664                                                       LPFC_DEFAULT_PAGE_SIZE,
10665                                                       phba->sli4_hba.rq_esize,
10666                                                       LPFC_NVMET_RQE_DEF_COUNT,
10667                                                       cpu);
10668                         if (!qdesc) {
10669                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10670                                                 "3156 Failed allocate "
10671                                                 "receive DRQ\n");
10672                                 goto out_error;
10673                         }
10674                         qdesc->hdwq = idx;
10675                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10676                 }
10677         }
10678
10679         /* Clear NVME stats */
10680         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10681                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10682                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10683                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10684                 }
10685         }
10686
10687         /* Clear SCSI stats */
10688         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10689                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10690                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10691                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10692                 }
10693         }
10694
10695         return 0;
10696
10697 out_error:
10698         lpfc_sli4_queue_destroy(phba);
10699         return -ENOMEM;
10700 }
10701
10702 static inline void
10703 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10704 {
10705         if (*qp != NULL) {
10706                 lpfc_sli4_queue_free(*qp);
10707                 *qp = NULL;
10708         }
10709 }
10710
10711 static inline void
10712 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10713 {
10714         int idx;
10715
10716         if (*qs == NULL)
10717                 return;
10718
10719         for (idx = 0; idx < max; idx++)
10720                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10721
10722         kfree(*qs);
10723         *qs = NULL;
10724 }
10725
10726 static inline void
10727 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10728 {
10729         struct lpfc_sli4_hdw_queue *hdwq;
10730         struct lpfc_queue *eq;
10731         uint32_t idx;
10732
10733         hdwq = phba->sli4_hba.hdwq;
10734
10735         /* Loop thru all Hardware Queues */
10736         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10737                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10738                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10739                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10740                 hdwq[idx].hba_eq = NULL;
10741                 hdwq[idx].io_cq = NULL;
10742                 hdwq[idx].io_wq = NULL;
10743                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10744                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10745                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10746         }
10747         /* Loop thru all IRQ vectors */
10748         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10749                 /* Free the EQ corresponding to the IRQ vector */
10750                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10751                 lpfc_sli4_queue_free(eq);
10752                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10753         }
10754 }
10755
10756 /**
10757  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10758  * @phba: pointer to lpfc hba data structure.
10759  *
10760  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10761  * operation.
10762  *
10763  * Return codes
10764  *      0 - successful
10765  *      -ENOMEM - No available memory
10766  *      -EIO - The mailbox failed to complete successfully.
10767  **/
10768 void
10769 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10770 {
10771         /*
10772          * Set FREE_INIT before beginning to free the queues.
10773          * Wait until the users of queues to acknowledge to
10774          * release queues by clearing FREE_WAIT.
10775          */
10776         spin_lock_irq(&phba->hbalock);
10777         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10778         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10779                 spin_unlock_irq(&phba->hbalock);
10780                 msleep(20);
10781                 spin_lock_irq(&phba->hbalock);
10782         }
10783         spin_unlock_irq(&phba->hbalock);
10784
10785         lpfc_sli4_cleanup_poll_list(phba);
10786
10787         /* Release HBA eqs */
10788         if (phba->sli4_hba.hdwq)
10789                 lpfc_sli4_release_hdwq(phba);
10790
10791         if (phba->nvmet_support) {
10792                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10793                                          phba->cfg_nvmet_mrq);
10794
10795                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10796                                          phba->cfg_nvmet_mrq);
10797                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10798                                          phba->cfg_nvmet_mrq);
10799         }
10800
10801         /* Release mailbox command work queue */
10802         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10803
10804         /* Release ELS work queue */
10805         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10806
10807         /* Release ELS work queue */
10808         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10809
10810         /* Release unsolicited receive queue */
10811         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10812         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10813
10814         /* Release ELS complete queue */
10815         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10816
10817         /* Release NVME LS complete queue */
10818         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10819
10820         /* Release mailbox command complete queue */
10821         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10822
10823         /* Everything on this list has been freed */
10824         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10825
10826         /* Done with freeing the queues */
10827         spin_lock_irq(&phba->hbalock);
10828         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10829         spin_unlock_irq(&phba->hbalock);
10830 }
10831
10832 int
10833 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10834 {
10835         struct lpfc_rqb *rqbp;
10836         struct lpfc_dmabuf *h_buf;
10837         struct rqb_dmabuf *rqb_buffer;
10838
10839         rqbp = rq->rqbp;
10840         while (!list_empty(&rqbp->rqb_buffer_list)) {
10841                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10842                                  struct lpfc_dmabuf, list);
10843
10844                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10845                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10846                 rqbp->buffer_count--;
10847         }
10848         return 1;
10849 }
10850
10851 static int
10852 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10853         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10854         int qidx, uint32_t qtype)
10855 {
10856         struct lpfc_sli_ring *pring;
10857         int rc;
10858
10859         if (!eq || !cq || !wq) {
10860                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10861                         "6085 Fast-path %s (%d) not allocated\n",
10862                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10863                 return -ENOMEM;
10864         }
10865
10866         /* create the Cq first */
10867         rc = lpfc_cq_create(phba, cq, eq,
10868                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10869         if (rc) {
10870                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10871                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10872                                 qidx, (uint32_t)rc);
10873                 return rc;
10874         }
10875
10876         if (qtype != LPFC_MBOX) {
10877                 /* Setup cq_map for fast lookup */
10878                 if (cq_map)
10879                         *cq_map = cq->queue_id;
10880
10881                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10882                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10883                         qidx, cq->queue_id, qidx, eq->queue_id);
10884
10885                 /* create the wq */
10886                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10887                 if (rc) {
10888                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10889                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10890                                 qidx, (uint32_t)rc);
10891                         /* no need to tear down cq - caller will do so */
10892                         return rc;
10893                 }
10894
10895                 /* Bind this CQ/WQ to the NVME ring */
10896                 pring = wq->pring;
10897                 pring->sli.sli4.wqp = (void *)wq;
10898                 cq->pring = pring;
10899
10900                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10901                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10902                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10903         } else {
10904                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10905                 if (rc) {
10906                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10907                                         "0539 Failed setup of slow-path MQ: "
10908                                         "rc = 0x%x\n", rc);
10909                         /* no need to tear down cq - caller will do so */
10910                         return rc;
10911                 }
10912
10913                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10914                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10915                         phba->sli4_hba.mbx_wq->queue_id,
10916                         phba->sli4_hba.mbx_cq->queue_id);
10917         }
10918
10919         return 0;
10920 }
10921
10922 /**
10923  * lpfc_setup_cq_lookup - Setup the CQ lookup table
10924  * @phba: pointer to lpfc hba data structure.
10925  *
10926  * This routine will populate the cq_lookup table by all
10927  * available CQ queue_id's.
10928  **/
10929 static void
10930 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10931 {
10932         struct lpfc_queue *eq, *childq;
10933         int qidx;
10934
10935         memset(phba->sli4_hba.cq_lookup, 0,
10936                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10937         /* Loop thru all IRQ vectors */
10938         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10939                 /* Get the EQ corresponding to the IRQ vector */
10940                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10941                 if (!eq)
10942                         continue;
10943                 /* Loop through all CQs associated with that EQ */
10944                 list_for_each_entry(childq, &eq->child_list, list) {
10945                         if (childq->queue_id > phba->sli4_hba.cq_max)
10946                                 continue;
10947                         if (childq->subtype == LPFC_IO)
10948                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
10949                                         childq;
10950                 }
10951         }
10952 }
10953
10954 /**
10955  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10956  * @phba: pointer to lpfc hba data structure.
10957  *
10958  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10959  * operation.
10960  *
10961  * Return codes
10962  *      0 - successful
10963  *      -ENOMEM - No available memory
10964  *      -EIO - The mailbox failed to complete successfully.
10965  **/
10966 int
10967 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10968 {
10969         uint32_t shdr_status, shdr_add_status;
10970         union lpfc_sli4_cfg_shdr *shdr;
10971         struct lpfc_vector_map_info *cpup;
10972         struct lpfc_sli4_hdw_queue *qp;
10973         LPFC_MBOXQ_t *mboxq;
10974         int qidx, cpu;
10975         uint32_t length, usdelay;
10976         int rc = -ENOMEM;
10977
10978         /* Check for dual-ULP support */
10979         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10980         if (!mboxq) {
10981                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10982                                 "3249 Unable to allocate memory for "
10983                                 "QUERY_FW_CFG mailbox command\n");
10984                 return -ENOMEM;
10985         }
10986         length = (sizeof(struct lpfc_mbx_query_fw_config) -
10987                   sizeof(struct lpfc_sli4_cfg_mhdr));
10988         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10989                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10990                          length, LPFC_SLI4_MBX_EMBED);
10991
10992         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10993
10994         shdr = (union lpfc_sli4_cfg_shdr *)
10995                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10996         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10997         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10998         if (shdr_status || shdr_add_status || rc) {
10999                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11000                                 "3250 QUERY_FW_CFG mailbox failed with status "
11001                                 "x%x add_status x%x, mbx status x%x\n",
11002                                 shdr_status, shdr_add_status, rc);
11003                 mempool_free(mboxq, phba->mbox_mem_pool);
11004                 rc = -ENXIO;
11005                 goto out_error;
11006         }
11007
11008         phba->sli4_hba.fw_func_mode =
11009                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
11010         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
11011         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
11012         phba->sli4_hba.physical_port =
11013                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
11014         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11015                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
11016                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
11017                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
11018
11019         mempool_free(mboxq, phba->mbox_mem_pool);
11020
11021         /*
11022          * Set up HBA Event Queues (EQs)
11023          */
11024         qp = phba->sli4_hba.hdwq;
11025
11026         /* Set up HBA event queue */
11027         if (!qp) {
11028                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11029                                 "3147 Fast-path EQs not allocated\n");
11030                 rc = -ENOMEM;
11031                 goto out_error;
11032         }
11033
11034         /* Loop thru all IRQ vectors */
11035         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11036                 /* Create HBA Event Queues (EQs) in order */
11037                 for_each_present_cpu(cpu) {
11038                         cpup = &phba->sli4_hba.cpu_map[cpu];
11039
11040                         /* Look for the CPU thats using that vector with
11041                          * LPFC_CPU_FIRST_IRQ set.
11042                          */
11043                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11044                                 continue;
11045                         if (qidx != cpup->eq)
11046                                 continue;
11047
11048                         /* Create an EQ for that vector */
11049                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11050                                             phba->cfg_fcp_imax);
11051                         if (rc) {
11052                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11053                                                 "0523 Failed setup of fast-path"
11054                                                 " EQ (%d), rc = 0x%x\n",
11055                                                 cpup->eq, (uint32_t)rc);
11056                                 goto out_destroy;
11057                         }
11058
11059                         /* Save the EQ for that vector in the hba_eq_hdl */
11060                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11061                                 qp[cpup->hdwq].hba_eq;
11062
11063                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11064                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
11065                                         cpup->eq,
11066                                         qp[cpup->hdwq].hba_eq->queue_id);
11067                 }
11068         }
11069
11070         /* Loop thru all Hardware Queues */
11071         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11072                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11073                 cpup = &phba->sli4_hba.cpu_map[cpu];
11074
11075                 /* Create the CQ/WQ corresponding to the Hardware Queue */
11076                 rc = lpfc_create_wq_cq(phba,
11077                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11078                                        qp[qidx].io_cq,
11079                                        qp[qidx].io_wq,
11080                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
11081                                        qidx,
11082                                        LPFC_IO);
11083                 if (rc) {
11084                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11085                                         "0535 Failed to setup fastpath "
11086                                         "IO WQ/CQ (%d), rc = 0x%x\n",
11087                                         qidx, (uint32_t)rc);
11088                         goto out_destroy;
11089                 }
11090         }
11091
11092         /*
11093          * Set up Slow Path Complete Queues (CQs)
11094          */
11095
11096         /* Set up slow-path MBOX CQ/MQ */
11097
11098         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11099                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11100                                 "0528 %s not allocated\n",
11101                                 phba->sli4_hba.mbx_cq ?
11102                                 "Mailbox WQ" : "Mailbox CQ");
11103                 rc = -ENOMEM;
11104                 goto out_destroy;
11105         }
11106
11107         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11108                                phba->sli4_hba.mbx_cq,
11109                                phba->sli4_hba.mbx_wq,
11110                                NULL, 0, LPFC_MBOX);
11111         if (rc) {
11112                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11113                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11114                         (uint32_t)rc);
11115                 goto out_destroy;
11116         }
11117         if (phba->nvmet_support) {
11118                 if (!phba->sli4_hba.nvmet_cqset) {
11119                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11120                                         "3165 Fast-path NVME CQ Set "
11121                                         "array not allocated\n");
11122                         rc = -ENOMEM;
11123                         goto out_destroy;
11124                 }
11125                 if (phba->cfg_nvmet_mrq > 1) {
11126                         rc = lpfc_cq_create_set(phba,
11127                                         phba->sli4_hba.nvmet_cqset,
11128                                         qp,
11129                                         LPFC_WCQ, LPFC_NVMET);
11130                         if (rc) {
11131                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11132                                                 "3164 Failed setup of NVME CQ "
11133                                                 "Set, rc = 0x%x\n",
11134                                                 (uint32_t)rc);
11135                                 goto out_destroy;
11136                         }
11137                 } else {
11138                         /* Set up NVMET Receive Complete Queue */
11139                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11140                                             qp[0].hba_eq,
11141                                             LPFC_WCQ, LPFC_NVMET);
11142                         if (rc) {
11143                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11144                                                 "6089 Failed setup NVMET CQ: "
11145                                                 "rc = 0x%x\n", (uint32_t)rc);
11146                                 goto out_destroy;
11147                         }
11148                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11149
11150                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11151                                         "6090 NVMET CQ setup: cq-id=%d, "
11152                                         "parent eq-id=%d\n",
11153                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11154                                         qp[0].hba_eq->queue_id);
11155                 }
11156         }
11157
11158         /* Set up slow-path ELS WQ/CQ */
11159         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11160                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11161                                 "0530 ELS %s not allocated\n",
11162                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11163                 rc = -ENOMEM;
11164                 goto out_destroy;
11165         }
11166         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11167                                phba->sli4_hba.els_cq,
11168                                phba->sli4_hba.els_wq,
11169                                NULL, 0, LPFC_ELS);
11170         if (rc) {
11171                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11172                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11173                                 (uint32_t)rc);
11174                 goto out_destroy;
11175         }
11176         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11177                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11178                         phba->sli4_hba.els_wq->queue_id,
11179                         phba->sli4_hba.els_cq->queue_id);
11180
11181         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11182                 /* Set up NVME LS Complete Queue */
11183                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11184                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11185                                         "6091 LS %s not allocated\n",
11186                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11187                         rc = -ENOMEM;
11188                         goto out_destroy;
11189                 }
11190                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11191                                        phba->sli4_hba.nvmels_cq,
11192                                        phba->sli4_hba.nvmels_wq,
11193                                        NULL, 0, LPFC_NVME_LS);
11194                 if (rc) {
11195                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11196                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11197                                         "rc = 0x%x\n", (uint32_t)rc);
11198                         goto out_destroy;
11199                 }
11200
11201                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11202                                 "6096 ELS WQ setup: wq-id=%d, "
11203                                 "parent cq-id=%d\n",
11204                                 phba->sli4_hba.nvmels_wq->queue_id,
11205                                 phba->sli4_hba.nvmels_cq->queue_id);
11206         }
11207
11208         /*
11209          * Create NVMET Receive Queue (RQ)
11210          */
11211         if (phba->nvmet_support) {
11212                 if ((!phba->sli4_hba.nvmet_cqset) ||
11213                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11214                     (!phba->sli4_hba.nvmet_mrq_data)) {
11215                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11216                                         "6130 MRQ CQ Queues not "
11217                                         "allocated\n");
11218                         rc = -ENOMEM;
11219                         goto out_destroy;
11220                 }
11221                 if (phba->cfg_nvmet_mrq > 1) {
11222                         rc = lpfc_mrq_create(phba,
11223                                              phba->sli4_hba.nvmet_mrq_hdr,
11224                                              phba->sli4_hba.nvmet_mrq_data,
11225                                              phba->sli4_hba.nvmet_cqset,
11226                                              LPFC_NVMET);
11227                         if (rc) {
11228                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11229                                                 "6098 Failed setup of NVMET "
11230                                                 "MRQ: rc = 0x%x\n",
11231                                                 (uint32_t)rc);
11232                                 goto out_destroy;
11233                         }
11234
11235                 } else {
11236                         rc = lpfc_rq_create(phba,
11237                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11238                                             phba->sli4_hba.nvmet_mrq_data[0],
11239                                             phba->sli4_hba.nvmet_cqset[0],
11240                                             LPFC_NVMET);
11241                         if (rc) {
11242                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11243                                                 "6057 Failed setup of NVMET "
11244                                                 "Receive Queue: rc = 0x%x\n",
11245                                                 (uint32_t)rc);
11246                                 goto out_destroy;
11247                         }
11248
11249                         lpfc_printf_log(
11250                                 phba, KERN_INFO, LOG_INIT,
11251                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11252                                 "dat-rq-id=%d parent cq-id=%d\n",
11253                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11254                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11255                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11256
11257                 }
11258         }
11259
11260         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11261                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11262                                 "0540 Receive Queue not allocated\n");
11263                 rc = -ENOMEM;
11264                 goto out_destroy;
11265         }
11266
11267         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11268                             phba->sli4_hba.els_cq, LPFC_USOL);
11269         if (rc) {
11270                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11271                                 "0541 Failed setup of Receive Queue: "
11272                                 "rc = 0x%x\n", (uint32_t)rc);
11273                 goto out_destroy;
11274         }
11275
11276         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11277                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11278                         "parent cq-id=%d\n",
11279                         phba->sli4_hba.hdr_rq->queue_id,
11280                         phba->sli4_hba.dat_rq->queue_id,
11281                         phba->sli4_hba.els_cq->queue_id);
11282
11283         if (phba->cfg_fcp_imax)
11284                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11285         else
11286                 usdelay = 0;
11287
11288         for (qidx = 0; qidx < phba->cfg_irq_chann;
11289              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11290                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11291                                          usdelay);
11292
11293         if (phba->sli4_hba.cq_max) {
11294                 kfree(phba->sli4_hba.cq_lookup);
11295                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11296                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11297                 if (!phba->sli4_hba.cq_lookup) {
11298                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11299                                         "0549 Failed setup of CQ Lookup table: "
11300                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11301                         rc = -ENOMEM;
11302                         goto out_destroy;
11303                 }
11304                 lpfc_setup_cq_lookup(phba);
11305         }
11306         return 0;
11307
11308 out_destroy:
11309         lpfc_sli4_queue_unset(phba);
11310 out_error:
11311         return rc;
11312 }
11313
11314 /**
11315  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11316  * @phba: pointer to lpfc hba data structure.
11317  *
11318  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11319  * operation.
11320  *
11321  * Return codes
11322  *      0 - successful
11323  *      -ENOMEM - No available memory
11324  *      -EIO - The mailbox failed to complete successfully.
11325  **/
11326 void
11327 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11328 {
11329         struct lpfc_sli4_hdw_queue *qp;
11330         struct lpfc_queue *eq;
11331         int qidx;
11332
11333         /* Unset mailbox command work queue */
11334         if (phba->sli4_hba.mbx_wq)
11335                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11336
11337         /* Unset NVME LS work queue */
11338         if (phba->sli4_hba.nvmels_wq)
11339                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11340
11341         /* Unset ELS work queue */
11342         if (phba->sli4_hba.els_wq)
11343                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11344
11345         /* Unset unsolicited receive queue */
11346         if (phba->sli4_hba.hdr_rq)
11347                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11348                                 phba->sli4_hba.dat_rq);
11349
11350         /* Unset mailbox command complete queue */
11351         if (phba->sli4_hba.mbx_cq)
11352                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11353
11354         /* Unset ELS complete queue */
11355         if (phba->sli4_hba.els_cq)
11356                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11357
11358         /* Unset NVME LS complete queue */
11359         if (phba->sli4_hba.nvmels_cq)
11360                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11361
11362         if (phba->nvmet_support) {
11363                 /* Unset NVMET MRQ queue */
11364                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11365                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11366                                 lpfc_rq_destroy(
11367                                         phba,
11368                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11369                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11370                 }
11371
11372                 /* Unset NVMET CQ Set complete queue */
11373                 if (phba->sli4_hba.nvmet_cqset) {
11374                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11375                                 lpfc_cq_destroy(
11376                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11377                 }
11378         }
11379
11380         /* Unset fast-path SLI4 queues */
11381         if (phba->sli4_hba.hdwq) {
11382                 /* Loop thru all Hardware Queues */
11383                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11384                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11385                         qp = &phba->sli4_hba.hdwq[qidx];
11386                         lpfc_wq_destroy(phba, qp->io_wq);
11387                         lpfc_cq_destroy(phba, qp->io_cq);
11388                 }
11389                 /* Loop thru all IRQ vectors */
11390                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11391                         /* Destroy the EQ corresponding to the IRQ vector */
11392                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11393                         lpfc_eq_destroy(phba, eq);
11394                 }
11395         }
11396
11397         kfree(phba->sli4_hba.cq_lookup);
11398         phba->sli4_hba.cq_lookup = NULL;
11399         phba->sli4_hba.cq_max = 0;
11400 }
11401
11402 /**
11403  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11404  * @phba: pointer to lpfc hba data structure.
11405  *
11406  * This routine is invoked to allocate and set up a pool of completion queue
11407  * events. The body of the completion queue event is a completion queue entry
11408  * CQE. For now, this pool is used for the interrupt service routine to queue
11409  * the following HBA completion queue events for the worker thread to process:
11410  *   - Mailbox asynchronous events
11411  *   - Receive queue completion unsolicited events
11412  * Later, this can be used for all the slow-path events.
11413  *
11414  * Return codes
11415  *      0 - successful
11416  *      -ENOMEM - No available memory
11417  **/
11418 static int
11419 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11420 {
11421         struct lpfc_cq_event *cq_event;
11422         int i;
11423
11424         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11425                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11426                 if (!cq_event)
11427                         goto out_pool_create_fail;
11428                 list_add_tail(&cq_event->list,
11429                               &phba->sli4_hba.sp_cqe_event_pool);
11430         }
11431         return 0;
11432
11433 out_pool_create_fail:
11434         lpfc_sli4_cq_event_pool_destroy(phba);
11435         return -ENOMEM;
11436 }
11437
11438 /**
11439  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11440  * @phba: pointer to lpfc hba data structure.
11441  *
11442  * This routine is invoked to free the pool of completion queue events at
11443  * driver unload time. Note that, it is the responsibility of the driver
11444  * cleanup routine to free all the outstanding completion-queue events
11445  * allocated from this pool back into the pool before invoking this routine
11446  * to destroy the pool.
11447  **/
11448 static void
11449 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11450 {
11451         struct lpfc_cq_event *cq_event, *next_cq_event;
11452
11453         list_for_each_entry_safe(cq_event, next_cq_event,
11454                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11455                 list_del(&cq_event->list);
11456                 kfree(cq_event);
11457         }
11458 }
11459
11460 /**
11461  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11462  * @phba: pointer to lpfc hba data structure.
11463  *
11464  * This routine is the lock free version of the API invoked to allocate a
11465  * completion-queue event from the free pool.
11466  *
11467  * Return: Pointer to the newly allocated completion-queue event if successful
11468  *         NULL otherwise.
11469  **/
11470 struct lpfc_cq_event *
11471 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11472 {
11473         struct lpfc_cq_event *cq_event = NULL;
11474
11475         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11476                          struct lpfc_cq_event, list);
11477         return cq_event;
11478 }
11479
11480 /**
11481  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11482  * @phba: pointer to lpfc hba data structure.
11483  *
11484  * This routine is the lock version of the API invoked to allocate a
11485  * completion-queue event from the free pool.
11486  *
11487  * Return: Pointer to the newly allocated completion-queue event if successful
11488  *         NULL otherwise.
11489  **/
11490 struct lpfc_cq_event *
11491 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11492 {
11493         struct lpfc_cq_event *cq_event;
11494         unsigned long iflags;
11495
11496         spin_lock_irqsave(&phba->hbalock, iflags);
11497         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11498         spin_unlock_irqrestore(&phba->hbalock, iflags);
11499         return cq_event;
11500 }
11501
11502 /**
11503  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11504  * @phba: pointer to lpfc hba data structure.
11505  * @cq_event: pointer to the completion queue event to be freed.
11506  *
11507  * This routine is the lock free version of the API invoked to release a
11508  * completion-queue event back into the free pool.
11509  **/
11510 void
11511 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11512                              struct lpfc_cq_event *cq_event)
11513 {
11514         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11515 }
11516
11517 /**
11518  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11519  * @phba: pointer to lpfc hba data structure.
11520  * @cq_event: pointer to the completion queue event to be freed.
11521  *
11522  * This routine is the lock version of the API invoked to release a
11523  * completion-queue event back into the free pool.
11524  **/
11525 void
11526 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11527                            struct lpfc_cq_event *cq_event)
11528 {
11529         unsigned long iflags;
11530         spin_lock_irqsave(&phba->hbalock, iflags);
11531         __lpfc_sli4_cq_event_release(phba, cq_event);
11532         spin_unlock_irqrestore(&phba->hbalock, iflags);
11533 }
11534
11535 /**
11536  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11537  * @phba: pointer to lpfc hba data structure.
11538  *
11539  * This routine is to free all the pending completion-queue events to the
11540  * back into the free pool for device reset.
11541  **/
11542 static void
11543 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11544 {
11545         LIST_HEAD(cq_event_list);
11546         struct lpfc_cq_event *cq_event;
11547         unsigned long iflags;
11548
11549         /* Retrieve all the pending WCQEs from pending WCQE lists */
11550
11551         /* Pending ELS XRI abort events */
11552         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11553         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11554                          &cq_event_list);
11555         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11556
11557         /* Pending asynnc events */
11558         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11559         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11560                          &cq_event_list);
11561         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11562
11563         while (!list_empty(&cq_event_list)) {
11564                 list_remove_head(&cq_event_list, cq_event,
11565                                  struct lpfc_cq_event, list);
11566                 lpfc_sli4_cq_event_release(phba, cq_event);
11567         }
11568 }
11569
11570 /**
11571  * lpfc_pci_function_reset - Reset pci function.
11572  * @phba: pointer to lpfc hba data structure.
11573  *
11574  * This routine is invoked to request a PCI function reset. It will destroys
11575  * all resources assigned to the PCI function which originates this request.
11576  *
11577  * Return codes
11578  *      0 - successful
11579  *      -ENOMEM - No available memory
11580  *      -EIO - The mailbox failed to complete successfully.
11581  **/
11582 int
11583 lpfc_pci_function_reset(struct lpfc_hba *phba)
11584 {
11585         LPFC_MBOXQ_t *mboxq;
11586         uint32_t rc = 0, if_type;
11587         uint32_t shdr_status, shdr_add_status;
11588         uint32_t rdy_chk;
11589         uint32_t port_reset = 0;
11590         union lpfc_sli4_cfg_shdr *shdr;
11591         struct lpfc_register reg_data;
11592         uint16_t devid;
11593
11594         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11595         switch (if_type) {
11596         case LPFC_SLI_INTF_IF_TYPE_0:
11597                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11598                                                        GFP_KERNEL);
11599                 if (!mboxq) {
11600                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11601                                         "0494 Unable to allocate memory for "
11602                                         "issuing SLI_FUNCTION_RESET mailbox "
11603                                         "command\n");
11604                         return -ENOMEM;
11605                 }
11606
11607                 /* Setup PCI function reset mailbox-ioctl command */
11608                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11609                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11610                                  LPFC_SLI4_MBX_EMBED);
11611                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11612                 shdr = (union lpfc_sli4_cfg_shdr *)
11613                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11614                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11615                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11616                                          &shdr->response);
11617                 mempool_free(mboxq, phba->mbox_mem_pool);
11618                 if (shdr_status || shdr_add_status || rc) {
11619                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11620                                         "0495 SLI_FUNCTION_RESET mailbox "
11621                                         "failed with status x%x add_status x%x,"
11622                                         " mbx status x%x\n",
11623                                         shdr_status, shdr_add_status, rc);
11624                         rc = -ENXIO;
11625                 }
11626                 break;
11627         case LPFC_SLI_INTF_IF_TYPE_2:
11628         case LPFC_SLI_INTF_IF_TYPE_6:
11629 wait:
11630                 /*
11631                  * Poll the Port Status Register and wait for RDY for
11632                  * up to 30 seconds. If the port doesn't respond, treat
11633                  * it as an error.
11634                  */
11635                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11636                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11637                                 STATUSregaddr, &reg_data.word0)) {
11638                                 rc = -ENODEV;
11639                                 goto out;
11640                         }
11641                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11642                                 break;
11643                         msleep(20);
11644                 }
11645
11646                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11647                         phba->work_status[0] = readl(
11648                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11649                         phba->work_status[1] = readl(
11650                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11651                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11652                                         "2890 Port not ready, port status reg "
11653                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11654                                         reg_data.word0,
11655                                         phba->work_status[0],
11656                                         phba->work_status[1]);
11657                         rc = -ENODEV;
11658                         goto out;
11659                 }
11660
11661                 if (bf_get(lpfc_sliport_status_pldv, &reg_data))
11662                         lpfc_pldv_detect = true;
11663
11664                 if (!port_reset) {
11665                         /*
11666                          * Reset the port now
11667                          */
11668                         reg_data.word0 = 0;
11669                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11670                                LPFC_SLIPORT_LITTLE_ENDIAN);
11671                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11672                                LPFC_SLIPORT_INIT_PORT);
11673                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11674                                CTRLregaddr);
11675                         /* flush */
11676                         pci_read_config_word(phba->pcidev,
11677                                              PCI_DEVICE_ID, &devid);
11678
11679                         port_reset = 1;
11680                         msleep(20);
11681                         goto wait;
11682                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11683                         rc = -ENODEV;
11684                         goto out;
11685                 }
11686                 break;
11687
11688         case LPFC_SLI_INTF_IF_TYPE_1:
11689         default:
11690                 break;
11691         }
11692
11693 out:
11694         /* Catch the not-ready port failure after a port reset. */
11695         if (rc) {
11696                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11697                                 "3317 HBA not functional: IP Reset Failed "
11698                                 "try: echo fw_reset > board_mode\n");
11699                 rc = -ENODEV;
11700         }
11701
11702         return rc;
11703 }
11704
11705 /**
11706  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11707  * @phba: pointer to lpfc hba data structure.
11708  *
11709  * This routine is invoked to set up the PCI device memory space for device
11710  * with SLI-4 interface spec.
11711  *
11712  * Return codes
11713  *      0 - successful
11714  *      other values - error
11715  **/
11716 static int
11717 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11718 {
11719         struct pci_dev *pdev = phba->pcidev;
11720         unsigned long bar0map_len, bar1map_len, bar2map_len;
11721         int error;
11722         uint32_t if_type;
11723
11724         if (!pdev)
11725                 return -ENODEV;
11726
11727         /* Set the device DMA mask size */
11728         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11729         if (error)
11730                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11731         if (error)
11732                 return error;
11733
11734         /*
11735          * The BARs and register set definitions and offset locations are
11736          * dependent on the if_type.
11737          */
11738         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11739                                   &phba->sli4_hba.sli_intf.word0)) {
11740                 return -ENODEV;
11741         }
11742
11743         /* There is no SLI3 failback for SLI4 devices. */
11744         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11745             LPFC_SLI_INTF_VALID) {
11746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11747                                 "2894 SLI_INTF reg contents invalid "
11748                                 "sli_intf reg 0x%x\n",
11749                                 phba->sli4_hba.sli_intf.word0);
11750                 return -ENODEV;
11751         }
11752
11753         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11754         /*
11755          * Get the bus address of SLI4 device Bar regions and the
11756          * number of bytes required by each mapping. The mapping of the
11757          * particular PCI BARs regions is dependent on the type of
11758          * SLI4 device.
11759          */
11760         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11761                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11762                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11763
11764                 /*
11765                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11766                  * addr
11767                  */
11768                 phba->sli4_hba.conf_regs_memmap_p =
11769                         ioremap(phba->pci_bar0_map, bar0map_len);
11770                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11771                         dev_printk(KERN_ERR, &pdev->dev,
11772                                    "ioremap failed for SLI4 PCI config "
11773                                    "registers.\n");
11774                         return -ENODEV;
11775                 }
11776                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11777                 /* Set up BAR0 PCI config space register memory map */
11778                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11779         } else {
11780                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11781                 bar0map_len = pci_resource_len(pdev, 1);
11782                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11783                         dev_printk(KERN_ERR, &pdev->dev,
11784                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11785                         return -ENODEV;
11786                 }
11787                 phba->sli4_hba.conf_regs_memmap_p =
11788                                 ioremap(phba->pci_bar0_map, bar0map_len);
11789                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11790                         dev_printk(KERN_ERR, &pdev->dev,
11791                                 "ioremap failed for SLI4 PCI config "
11792                                 "registers.\n");
11793                         return -ENODEV;
11794                 }
11795                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11796         }
11797
11798         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11799                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11800                         /*
11801                          * Map SLI4 if type 0 HBA Control Register base to a
11802                          * kernel virtual address and setup the registers.
11803                          */
11804                         phba->pci_bar1_map = pci_resource_start(pdev,
11805                                                                 PCI_64BIT_BAR2);
11806                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11807                         phba->sli4_hba.ctrl_regs_memmap_p =
11808                                         ioremap(phba->pci_bar1_map,
11809                                                 bar1map_len);
11810                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11811                                 dev_err(&pdev->dev,
11812                                            "ioremap failed for SLI4 HBA "
11813                                             "control registers.\n");
11814                                 error = -ENOMEM;
11815                                 goto out_iounmap_conf;
11816                         }
11817                         phba->pci_bar2_memmap_p =
11818                                          phba->sli4_hba.ctrl_regs_memmap_p;
11819                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11820                 } else {
11821                         error = -ENOMEM;
11822                         goto out_iounmap_conf;
11823                 }
11824         }
11825
11826         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11827             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11828                 /*
11829                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11830                  * virtual address and setup the registers.
11831                  */
11832                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11833                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11834                 phba->sli4_hba.drbl_regs_memmap_p =
11835                                 ioremap(phba->pci_bar1_map, bar1map_len);
11836                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11837                         dev_err(&pdev->dev,
11838                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11839                         error = -ENOMEM;
11840                         goto out_iounmap_conf;
11841                 }
11842                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11843                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11844         }
11845
11846         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11847                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11848                         /*
11849                          * Map SLI4 if type 0 HBA Doorbell Register base to
11850                          * a kernel virtual address and setup the registers.
11851                          */
11852                         phba->pci_bar2_map = pci_resource_start(pdev,
11853                                                                 PCI_64BIT_BAR4);
11854                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11855                         phba->sli4_hba.drbl_regs_memmap_p =
11856                                         ioremap(phba->pci_bar2_map,
11857                                                 bar2map_len);
11858                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11859                                 dev_err(&pdev->dev,
11860                                            "ioremap failed for SLI4 HBA"
11861                                            " doorbell registers.\n");
11862                                 error = -ENOMEM;
11863                                 goto out_iounmap_ctrl;
11864                         }
11865                         phba->pci_bar4_memmap_p =
11866                                         phba->sli4_hba.drbl_regs_memmap_p;
11867                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11868                         if (error)
11869                                 goto out_iounmap_all;
11870                 } else {
11871                         error = -ENOMEM;
11872                         goto out_iounmap_all;
11873                 }
11874         }
11875
11876         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11877             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11878                 /*
11879                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11880                  * virtual address and setup the registers.
11881                  */
11882                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11883                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11884                 phba->sli4_hba.dpp_regs_memmap_p =
11885                                 ioremap(phba->pci_bar2_map, bar2map_len);
11886                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11887                         dev_err(&pdev->dev,
11888                            "ioremap failed for SLI4 HBA dpp registers.\n");
11889                         error = -ENOMEM;
11890                         goto out_iounmap_ctrl;
11891                 }
11892                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11893         }
11894
11895         /* Set up the EQ/CQ register handeling functions now */
11896         switch (if_type) {
11897         case LPFC_SLI_INTF_IF_TYPE_0:
11898         case LPFC_SLI_INTF_IF_TYPE_2:
11899                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11900                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11901                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11902                 break;
11903         case LPFC_SLI_INTF_IF_TYPE_6:
11904                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11905                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11906                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11907                 break;
11908         default:
11909                 break;
11910         }
11911
11912         return 0;
11913
11914 out_iounmap_all:
11915         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11916 out_iounmap_ctrl:
11917         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11918 out_iounmap_conf:
11919         iounmap(phba->sli4_hba.conf_regs_memmap_p);
11920
11921         return error;
11922 }
11923
11924 /**
11925  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11926  * @phba: pointer to lpfc hba data structure.
11927  *
11928  * This routine is invoked to unset the PCI device memory space for device
11929  * with SLI-4 interface spec.
11930  **/
11931 static void
11932 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11933 {
11934         uint32_t if_type;
11935         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11936
11937         switch (if_type) {
11938         case LPFC_SLI_INTF_IF_TYPE_0:
11939                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11940                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11941                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11942                 break;
11943         case LPFC_SLI_INTF_IF_TYPE_2:
11944                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11945                 break;
11946         case LPFC_SLI_INTF_IF_TYPE_6:
11947                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11948                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11949                 if (phba->sli4_hba.dpp_regs_memmap_p)
11950                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11951                 break;
11952         case LPFC_SLI_INTF_IF_TYPE_1:
11953         default:
11954                 dev_printk(KERN_ERR, &phba->pcidev->dev,
11955                            "FATAL - unsupported SLI4 interface type - %d\n",
11956                            if_type);
11957                 break;
11958         }
11959 }
11960
11961 /**
11962  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11963  * @phba: pointer to lpfc hba data structure.
11964  *
11965  * This routine is invoked to enable the MSI-X interrupt vectors to device
11966  * with SLI-3 interface specs.
11967  *
11968  * Return codes
11969  *   0 - successful
11970  *   other values - error
11971  **/
11972 static int
11973 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11974 {
11975         int rc;
11976         LPFC_MBOXQ_t *pmb;
11977
11978         /* Set up MSI-X multi-message vectors */
11979         rc = pci_alloc_irq_vectors(phba->pcidev,
11980                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11981         if (rc < 0) {
11982                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11983                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
11984                 goto vec_fail_out;
11985         }
11986
11987         /*
11988          * Assign MSI-X vectors to interrupt handlers
11989          */
11990
11991         /* vector-0 is associated to slow-path handler */
11992         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11993                          &lpfc_sli_sp_intr_handler, 0,
11994                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
11995         if (rc) {
11996                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11997                                 "0421 MSI-X slow-path request_irq failed "
11998                                 "(%d)\n", rc);
11999                 goto msi_fail_out;
12000         }
12001
12002         /* vector-1 is associated to fast-path handler */
12003         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
12004                          &lpfc_sli_fp_intr_handler, 0,
12005                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
12006
12007         if (rc) {
12008                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12009                                 "0429 MSI-X fast-path request_irq failed "
12010                                 "(%d)\n", rc);
12011                 goto irq_fail_out;
12012         }
12013
12014         /*
12015          * Configure HBA MSI-X attention conditions to messages
12016          */
12017         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12018
12019         if (!pmb) {
12020                 rc = -ENOMEM;
12021                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12022                                 "0474 Unable to allocate memory for issuing "
12023                                 "MBOX_CONFIG_MSI command\n");
12024                 goto mem_fail_out;
12025         }
12026         rc = lpfc_config_msi(phba, pmb);
12027         if (rc)
12028                 goto mbx_fail_out;
12029         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12030         if (rc != MBX_SUCCESS) {
12031                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12032                                 "0351 Config MSI mailbox command failed, "
12033                                 "mbxCmd x%x, mbxStatus x%x\n",
12034                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12035                 goto mbx_fail_out;
12036         }
12037
12038         /* Free memory allocated for mailbox command */
12039         mempool_free(pmb, phba->mbox_mem_pool);
12040         return rc;
12041
12042 mbx_fail_out:
12043         /* Free memory allocated for mailbox command */
12044         mempool_free(pmb, phba->mbox_mem_pool);
12045
12046 mem_fail_out:
12047         /* free the irq already requested */
12048         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12049
12050 irq_fail_out:
12051         /* free the irq already requested */
12052         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12053
12054 msi_fail_out:
12055         /* Unconfigure MSI-X capability structure */
12056         pci_free_irq_vectors(phba->pcidev);
12057
12058 vec_fail_out:
12059         return rc;
12060 }
12061
12062 /**
12063  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12064  * @phba: pointer to lpfc hba data structure.
12065  *
12066  * This routine is invoked to enable the MSI interrupt mode to device with
12067  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12068  * enable the MSI vector. The device driver is responsible for calling the
12069  * request_irq() to register MSI vector with a interrupt the handler, which
12070  * is done in this function.
12071  *
12072  * Return codes
12073  *      0 - successful
12074  *      other values - error
12075  */
12076 static int
12077 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12078 {
12079         int rc;
12080
12081         rc = pci_enable_msi(phba->pcidev);
12082         if (!rc)
12083                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12084                                 "0462 PCI enable MSI mode success.\n");
12085         else {
12086                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12087                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
12088                 return rc;
12089         }
12090
12091         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12092                          0, LPFC_DRIVER_NAME, phba);
12093         if (rc) {
12094                 pci_disable_msi(phba->pcidev);
12095                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12096                                 "0478 MSI request_irq failed (%d)\n", rc);
12097         }
12098         return rc;
12099 }
12100
12101 /**
12102  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12103  * @phba: pointer to lpfc hba data structure.
12104  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12105  *
12106  * This routine is invoked to enable device interrupt and associate driver's
12107  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12108  * spec. Depends on the interrupt mode configured to the driver, the driver
12109  * will try to fallback from the configured interrupt mode to an interrupt
12110  * mode which is supported by the platform, kernel, and device in the order
12111  * of:
12112  * MSI-X -> MSI -> IRQ.
12113  *
12114  * Return codes
12115  *   0 - successful
12116  *   other values - error
12117  **/
12118 static uint32_t
12119 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12120 {
12121         uint32_t intr_mode = LPFC_INTR_ERROR;
12122         int retval;
12123
12124         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12125         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12126         if (retval)
12127                 return intr_mode;
12128         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12129
12130         if (cfg_mode == 2) {
12131                 /* Now, try to enable MSI-X interrupt mode */
12132                 retval = lpfc_sli_enable_msix(phba);
12133                 if (!retval) {
12134                         /* Indicate initialization to MSI-X mode */
12135                         phba->intr_type = MSIX;
12136                         intr_mode = 2;
12137                 }
12138         }
12139
12140         /* Fallback to MSI if MSI-X initialization failed */
12141         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12142                 retval = lpfc_sli_enable_msi(phba);
12143                 if (!retval) {
12144                         /* Indicate initialization to MSI mode */
12145                         phba->intr_type = MSI;
12146                         intr_mode = 1;
12147                 }
12148         }
12149
12150         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12151         if (phba->intr_type == NONE) {
12152                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12153                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12154                 if (!retval) {
12155                         /* Indicate initialization to INTx mode */
12156                         phba->intr_type = INTx;
12157                         intr_mode = 0;
12158                 }
12159         }
12160         return intr_mode;
12161 }
12162
12163 /**
12164  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12165  * @phba: pointer to lpfc hba data structure.
12166  *
12167  * This routine is invoked to disable device interrupt and disassociate the
12168  * driver's interrupt handler(s) from interrupt vector(s) to device with
12169  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12170  * release the interrupt vector(s) for the message signaled interrupt.
12171  **/
12172 static void
12173 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12174 {
12175         int nr_irqs, i;
12176
12177         if (phba->intr_type == MSIX)
12178                 nr_irqs = LPFC_MSIX_VECTORS;
12179         else
12180                 nr_irqs = 1;
12181
12182         for (i = 0; i < nr_irqs; i++)
12183                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12184         pci_free_irq_vectors(phba->pcidev);
12185
12186         /* Reset interrupt management states */
12187         phba->intr_type = NONE;
12188         phba->sli.slistat.sli_intr = 0;
12189 }
12190
12191 /**
12192  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12193  * @phba: pointer to lpfc hba data structure.
12194  * @id: EQ vector index or Hardware Queue index
12195  * @match: LPFC_FIND_BY_EQ = match by EQ
12196  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12197  * Return the CPU that matches the selection criteria
12198  */
12199 static uint16_t
12200 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12201 {
12202         struct lpfc_vector_map_info *cpup;
12203         int cpu;
12204
12205         /* Loop through all CPUs */
12206         for_each_present_cpu(cpu) {
12207                 cpup = &phba->sli4_hba.cpu_map[cpu];
12208
12209                 /* If we are matching by EQ, there may be multiple CPUs using
12210                  * using the same vector, so select the one with
12211                  * LPFC_CPU_FIRST_IRQ set.
12212                  */
12213                 if ((match == LPFC_FIND_BY_EQ) &&
12214                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12215                     (cpup->eq == id))
12216                         return cpu;
12217
12218                 /* If matching by HDWQ, select the first CPU that matches */
12219                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12220                         return cpu;
12221         }
12222         return 0;
12223 }
12224
12225 #ifdef CONFIG_X86
12226 /**
12227  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12228  * @phba: pointer to lpfc hba data structure.
12229  * @cpu: CPU map index
12230  * @phys_id: CPU package physical id
12231  * @core_id: CPU core id
12232  */
12233 static int
12234 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12235                 uint16_t phys_id, uint16_t core_id)
12236 {
12237         struct lpfc_vector_map_info *cpup;
12238         int idx;
12239
12240         for_each_present_cpu(idx) {
12241                 cpup = &phba->sli4_hba.cpu_map[idx];
12242                 /* Does the cpup match the one we are looking for */
12243                 if ((cpup->phys_id == phys_id) &&
12244                     (cpup->core_id == core_id) &&
12245                     (cpu != idx))
12246                         return 1;
12247         }
12248         return 0;
12249 }
12250 #endif
12251
12252 /*
12253  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12254  * @phba: pointer to lpfc hba data structure.
12255  * @eqidx: index for eq and irq vector
12256  * @flag: flags to set for vector_map structure
12257  * @cpu: cpu used to index vector_map structure
12258  *
12259  * The routine assigns eq info into vector_map structure
12260  */
12261 static inline void
12262 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12263                         unsigned int cpu)
12264 {
12265         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12266         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12267
12268         cpup->eq = eqidx;
12269         cpup->flag |= flag;
12270
12271         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12272                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12273                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12274 }
12275
12276 /**
12277  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12278  * @phba: pointer to lpfc hba data structure.
12279  *
12280  * The routine initializes the cpu_map array structure
12281  */
12282 static void
12283 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12284 {
12285         struct lpfc_vector_map_info *cpup;
12286         struct lpfc_eq_intr_info *eqi;
12287         int cpu;
12288
12289         for_each_possible_cpu(cpu) {
12290                 cpup = &phba->sli4_hba.cpu_map[cpu];
12291                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12292                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12293                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12294                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12295                 cpup->flag = 0;
12296                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12297                 INIT_LIST_HEAD(&eqi->list);
12298                 eqi->icnt = 0;
12299         }
12300 }
12301
12302 /**
12303  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12304  * @phba: pointer to lpfc hba data structure.
12305  *
12306  * The routine initializes the hba_eq_hdl array structure
12307  */
12308 static void
12309 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12310 {
12311         struct lpfc_hba_eq_hdl *eqhdl;
12312         int i;
12313
12314         for (i = 0; i < phba->cfg_irq_chann; i++) {
12315                 eqhdl = lpfc_get_eq_hdl(i);
12316                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12317                 eqhdl->phba = phba;
12318         }
12319 }
12320
12321 /**
12322  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12323  * @phba: pointer to lpfc hba data structure.
12324  * @vectors: number of msix vectors allocated.
12325  *
12326  * The routine will figure out the CPU affinity assignment for every
12327  * MSI-X vector allocated for the HBA.
12328  * In addition, the CPU to IO channel mapping will be calculated
12329  * and the phba->sli4_hba.cpu_map array will reflect this.
12330  */
12331 static void
12332 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12333 {
12334         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12335         int max_phys_id, min_phys_id;
12336         int max_core_id, min_core_id;
12337         struct lpfc_vector_map_info *cpup;
12338         struct lpfc_vector_map_info *new_cpup;
12339 #ifdef CONFIG_X86
12340         struct cpuinfo_x86 *cpuinfo;
12341 #endif
12342 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12343         struct lpfc_hdwq_stat *c_stat;
12344 #endif
12345
12346         max_phys_id = 0;
12347         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12348         max_core_id = 0;
12349         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12350
12351         /* Update CPU map with physical id and core id of each CPU */
12352         for_each_present_cpu(cpu) {
12353                 cpup = &phba->sli4_hba.cpu_map[cpu];
12354 #ifdef CONFIG_X86
12355                 cpuinfo = &cpu_data(cpu);
12356                 cpup->phys_id = cpuinfo->phys_proc_id;
12357                 cpup->core_id = cpuinfo->cpu_core_id;
12358                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12359                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12360 #else
12361                 /* No distinction between CPUs for other platforms */
12362                 cpup->phys_id = 0;
12363                 cpup->core_id = cpu;
12364 #endif
12365
12366                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12367                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12368                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12369
12370                 if (cpup->phys_id > max_phys_id)
12371                         max_phys_id = cpup->phys_id;
12372                 if (cpup->phys_id < min_phys_id)
12373                         min_phys_id = cpup->phys_id;
12374
12375                 if (cpup->core_id > max_core_id)
12376                         max_core_id = cpup->core_id;
12377                 if (cpup->core_id < min_core_id)
12378                         min_core_id = cpup->core_id;
12379         }
12380
12381         /* After looking at each irq vector assigned to this pcidev, its
12382          * possible to see that not ALL CPUs have been accounted for.
12383          * Next we will set any unassigned (unaffinitized) cpu map
12384          * entries to a IRQ on the same phys_id.
12385          */
12386         first_cpu = cpumask_first(cpu_present_mask);
12387         start_cpu = first_cpu;
12388
12389         for_each_present_cpu(cpu) {
12390                 cpup = &phba->sli4_hba.cpu_map[cpu];
12391
12392                 /* Is this CPU entry unassigned */
12393                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12394                         /* Mark CPU as IRQ not assigned by the kernel */
12395                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12396
12397                         /* If so, find a new_cpup thats on the the SAME
12398                          * phys_id as cpup. start_cpu will start where we
12399                          * left off so all unassigned entries don't get assgined
12400                          * the IRQ of the first entry.
12401                          */
12402                         new_cpu = start_cpu;
12403                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12404                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12405                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12406                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12407                                     (new_cpup->phys_id == cpup->phys_id))
12408                                         goto found_same;
12409                                 new_cpu = cpumask_next(
12410                                         new_cpu, cpu_present_mask);
12411                                 if (new_cpu == nr_cpumask_bits)
12412                                         new_cpu = first_cpu;
12413                         }
12414                         /* At this point, we leave the CPU as unassigned */
12415                         continue;
12416 found_same:
12417                         /* We found a matching phys_id, so copy the IRQ info */
12418                         cpup->eq = new_cpup->eq;
12419
12420                         /* Bump start_cpu to the next slot to minmize the
12421                          * chance of having multiple unassigned CPU entries
12422                          * selecting the same IRQ.
12423                          */
12424                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12425                         if (start_cpu == nr_cpumask_bits)
12426                                 start_cpu = first_cpu;
12427
12428                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12429                                         "3337 Set Affinity: CPU %d "
12430                                         "eq %d from peer cpu %d same "
12431                                         "phys_id (%d)\n",
12432                                         cpu, cpup->eq, new_cpu,
12433                                         cpup->phys_id);
12434                 }
12435         }
12436
12437         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12438         start_cpu = first_cpu;
12439
12440         for_each_present_cpu(cpu) {
12441                 cpup = &phba->sli4_hba.cpu_map[cpu];
12442
12443                 /* Is this entry unassigned */
12444                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12445                         /* Mark it as IRQ not assigned by the kernel */
12446                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12447
12448                         /* If so, find a new_cpup thats on ANY phys_id
12449                          * as the cpup. start_cpu will start where we
12450                          * left off so all unassigned entries don't get
12451                          * assigned the IRQ of the first entry.
12452                          */
12453                         new_cpu = start_cpu;
12454                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12455                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12456                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12457                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12458                                         goto found_any;
12459                                 new_cpu = cpumask_next(
12460                                         new_cpu, cpu_present_mask);
12461                                 if (new_cpu == nr_cpumask_bits)
12462                                         new_cpu = first_cpu;
12463                         }
12464                         /* We should never leave an entry unassigned */
12465                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12466                                         "3339 Set Affinity: CPU %d "
12467                                         "eq %d UNASSIGNED\n",
12468                                         cpup->hdwq, cpup->eq);
12469                         continue;
12470 found_any:
12471                         /* We found an available entry, copy the IRQ info */
12472                         cpup->eq = new_cpup->eq;
12473
12474                         /* Bump start_cpu to the next slot to minmize the
12475                          * chance of having multiple unassigned CPU entries
12476                          * selecting the same IRQ.
12477                          */
12478                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12479                         if (start_cpu == nr_cpumask_bits)
12480                                 start_cpu = first_cpu;
12481
12482                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12483                                         "3338 Set Affinity: CPU %d "
12484                                         "eq %d from peer cpu %d (%d/%d)\n",
12485                                         cpu, cpup->eq, new_cpu,
12486                                         new_cpup->phys_id, new_cpup->core_id);
12487                 }
12488         }
12489
12490         /* Assign hdwq indices that are unique across all cpus in the map
12491          * that are also FIRST_CPUs.
12492          */
12493         idx = 0;
12494         for_each_present_cpu(cpu) {
12495                 cpup = &phba->sli4_hba.cpu_map[cpu];
12496
12497                 /* Only FIRST IRQs get a hdwq index assignment. */
12498                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12499                         continue;
12500
12501                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12502                 cpup->hdwq = idx;
12503                 idx++;
12504                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12505                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12506                                 "hdwq %d eq %d flg x%x\n",
12507                                 cpu, cpup->phys_id, cpup->core_id,
12508                                 cpup->hdwq, cpup->eq, cpup->flag);
12509         }
12510         /* Associate a hdwq with each cpu_map entry
12511          * This will be 1 to 1 - hdwq to cpu, unless there are less
12512          * hardware queues then CPUs. For that case we will just round-robin
12513          * the available hardware queues as they get assigned to CPUs.
12514          * The next_idx is the idx from the FIRST_CPU loop above to account
12515          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12516          * and needs to start at 0.
12517          */
12518         next_idx = idx;
12519         start_cpu = 0;
12520         idx = 0;
12521         for_each_present_cpu(cpu) {
12522                 cpup = &phba->sli4_hba.cpu_map[cpu];
12523
12524                 /* FIRST cpus are already mapped. */
12525                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12526                         continue;
12527
12528                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12529                  * of the unassigned cpus to the next idx so that all
12530                  * hdw queues are fully utilized.
12531                  */
12532                 if (next_idx < phba->cfg_hdw_queue) {
12533                         cpup->hdwq = next_idx;
12534                         next_idx++;
12535                         continue;
12536                 }
12537
12538                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12539                  * Hardware Queue for another CPU, so be smart about it
12540                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12541                  * (CPU package) and core_id.
12542                  */
12543                 new_cpu = start_cpu;
12544                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12545                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12546                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12547                             new_cpup->phys_id == cpup->phys_id &&
12548                             new_cpup->core_id == cpup->core_id) {
12549                                 goto found_hdwq;
12550                         }
12551                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12552                         if (new_cpu == nr_cpumask_bits)
12553                                 new_cpu = first_cpu;
12554                 }
12555
12556                 /* If we can't match both phys_id and core_id,
12557                  * settle for just a phys_id match.
12558                  */
12559                 new_cpu = start_cpu;
12560                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12561                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12562                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12563                             new_cpup->phys_id == cpup->phys_id)
12564                                 goto found_hdwq;
12565
12566                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12567                         if (new_cpu == nr_cpumask_bits)
12568                                 new_cpu = first_cpu;
12569                 }
12570
12571                 /* Otherwise just round robin on cfg_hdw_queue */
12572                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12573                 idx++;
12574                 goto logit;
12575  found_hdwq:
12576                 /* We found an available entry, copy the IRQ info */
12577                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12578                 if (start_cpu == nr_cpumask_bits)
12579                         start_cpu = first_cpu;
12580                 cpup->hdwq = new_cpup->hdwq;
12581  logit:
12582                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12583                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12584                                 "hdwq %d eq %d flg x%x\n",
12585                                 cpu, cpup->phys_id, cpup->core_id,
12586                                 cpup->hdwq, cpup->eq, cpup->flag);
12587         }
12588
12589         /*
12590          * Initialize the cpu_map slots for not-present cpus in case
12591          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12592          */
12593         idx = 0;
12594         for_each_possible_cpu(cpu) {
12595                 cpup = &phba->sli4_hba.cpu_map[cpu];
12596 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12597                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12598                 c_stat->hdwq_no = cpup->hdwq;
12599 #endif
12600                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12601                         continue;
12602
12603                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12604 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12605                 c_stat->hdwq_no = cpup->hdwq;
12606 #endif
12607                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12608                                 "3340 Set Affinity: not present "
12609                                 "CPU %d hdwq %d\n",
12610                                 cpu, cpup->hdwq);
12611         }
12612
12613         /* The cpu_map array will be used later during initialization
12614          * when EQ / CQ / WQs are allocated and configured.
12615          */
12616         return;
12617 }
12618
12619 /**
12620  * lpfc_cpuhp_get_eq
12621  *
12622  * @phba:   pointer to lpfc hba data structure.
12623  * @cpu:    cpu going offline
12624  * @eqlist: eq list to append to
12625  */
12626 static int
12627 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12628                   struct list_head *eqlist)
12629 {
12630         const struct cpumask *maskp;
12631         struct lpfc_queue *eq;
12632         struct cpumask *tmp;
12633         u16 idx;
12634
12635         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12636         if (!tmp)
12637                 return -ENOMEM;
12638
12639         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12640                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12641                 if (!maskp)
12642                         continue;
12643                 /*
12644                  * if irq is not affinitized to the cpu going
12645                  * then we don't need to poll the eq attached
12646                  * to it.
12647                  */
12648                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12649                         continue;
12650                 /* get the cpus that are online and are affini-
12651                  * tized to this irq vector.  If the count is
12652                  * more than 1 then cpuhp is not going to shut-
12653                  * down this vector.  Since this cpu has not
12654                  * gone offline yet, we need >1.
12655                  */
12656                 cpumask_and(tmp, maskp, cpu_online_mask);
12657                 if (cpumask_weight(tmp) > 1)
12658                         continue;
12659
12660                 /* Now that we have an irq to shutdown, get the eq
12661                  * mapped to this irq.  Note: multiple hdwq's in
12662                  * the software can share an eq, but eventually
12663                  * only eq will be mapped to this vector
12664                  */
12665                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12666                 list_add(&eq->_poll_list, eqlist);
12667         }
12668         kfree(tmp);
12669         return 0;
12670 }
12671
12672 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12673 {
12674         if (phba->sli_rev != LPFC_SLI_REV4)
12675                 return;
12676
12677         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12678                                             &phba->cpuhp);
12679         /*
12680          * unregistering the instance doesn't stop the polling
12681          * timer. Wait for the poll timer to retire.
12682          */
12683         synchronize_rcu();
12684         del_timer_sync(&phba->cpuhp_poll_timer);
12685 }
12686
12687 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12688 {
12689         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12690                 return;
12691
12692         __lpfc_cpuhp_remove(phba);
12693 }
12694
12695 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12696 {
12697         if (phba->sli_rev != LPFC_SLI_REV4)
12698                 return;
12699
12700         rcu_read_lock();
12701
12702         if (!list_empty(&phba->poll_list))
12703                 mod_timer(&phba->cpuhp_poll_timer,
12704                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12705
12706         rcu_read_unlock();
12707
12708         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12709                                          &phba->cpuhp);
12710 }
12711
12712 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12713 {
12714         if (phba->pport->load_flag & FC_UNLOADING) {
12715                 *retval = -EAGAIN;
12716                 return true;
12717         }
12718
12719         if (phba->sli_rev != LPFC_SLI_REV4) {
12720                 *retval = 0;
12721                 return true;
12722         }
12723
12724         /* proceed with the hotplug */
12725         return false;
12726 }
12727
12728 /**
12729  * lpfc_irq_set_aff - set IRQ affinity
12730  * @eqhdl: EQ handle
12731  * @cpu: cpu to set affinity
12732  *
12733  **/
12734 static inline void
12735 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12736 {
12737         cpumask_clear(&eqhdl->aff_mask);
12738         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12739         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12740         irq_set_affinity(eqhdl->irq, &eqhdl->aff_mask);
12741 }
12742
12743 /**
12744  * lpfc_irq_clear_aff - clear IRQ affinity
12745  * @eqhdl: EQ handle
12746  *
12747  **/
12748 static inline void
12749 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12750 {
12751         cpumask_clear(&eqhdl->aff_mask);
12752         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12753 }
12754
12755 /**
12756  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12757  * @phba: pointer to HBA context object.
12758  * @cpu: cpu going offline/online
12759  * @offline: true, cpu is going offline. false, cpu is coming online.
12760  *
12761  * If cpu is going offline, we'll try our best effort to find the next
12762  * online cpu on the phba's original_mask and migrate all offlining IRQ
12763  * affinities.
12764  *
12765  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12766  *
12767  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12768  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12769  *
12770  **/
12771 static void
12772 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12773 {
12774         struct lpfc_vector_map_info *cpup;
12775         struct cpumask *aff_mask;
12776         unsigned int cpu_select, cpu_next, idx;
12777         const struct cpumask *orig_mask;
12778
12779         if (phba->irq_chann_mode == NORMAL_MODE)
12780                 return;
12781
12782         orig_mask = &phba->sli4_hba.irq_aff_mask;
12783
12784         if (!cpumask_test_cpu(cpu, orig_mask))
12785                 return;
12786
12787         cpup = &phba->sli4_hba.cpu_map[cpu];
12788
12789         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12790                 return;
12791
12792         if (offline) {
12793                 /* Find next online CPU on original mask */
12794                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12795                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12796
12797                 /* Found a valid CPU */
12798                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12799                         /* Go through each eqhdl and ensure offlining
12800                          * cpu aff_mask is migrated
12801                          */
12802                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12803                                 aff_mask = lpfc_get_aff_mask(idx);
12804
12805                                 /* Migrate affinity */
12806                                 if (cpumask_test_cpu(cpu, aff_mask))
12807                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12808                                                          cpu_select);
12809                         }
12810                 } else {
12811                         /* Rely on irqbalance if no online CPUs left on NUMA */
12812                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12813                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12814                 }
12815         } else {
12816                 /* Migrate affinity back to this CPU */
12817                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12818         }
12819 }
12820
12821 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12822 {
12823         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12824         struct lpfc_queue *eq, *next;
12825         LIST_HEAD(eqlist);
12826         int retval;
12827
12828         if (!phba) {
12829                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12830                 return 0;
12831         }
12832
12833         if (__lpfc_cpuhp_checks(phba, &retval))
12834                 return retval;
12835
12836         lpfc_irq_rebalance(phba, cpu, true);
12837
12838         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12839         if (retval)
12840                 return retval;
12841
12842         /* start polling on these eq's */
12843         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12844                 list_del_init(&eq->_poll_list);
12845                 lpfc_sli4_start_polling(eq);
12846         }
12847
12848         return 0;
12849 }
12850
12851 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12852 {
12853         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12854         struct lpfc_queue *eq, *next;
12855         unsigned int n;
12856         int retval;
12857
12858         if (!phba) {
12859                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12860                 return 0;
12861         }
12862
12863         if (__lpfc_cpuhp_checks(phba, &retval))
12864                 return retval;
12865
12866         lpfc_irq_rebalance(phba, cpu, false);
12867
12868         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12869                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12870                 if (n == cpu)
12871                         lpfc_sli4_stop_polling(eq);
12872         }
12873
12874         return 0;
12875 }
12876
12877 /**
12878  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12879  * @phba: pointer to lpfc hba data structure.
12880  *
12881  * This routine is invoked to enable the MSI-X interrupt vectors to device
12882  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12883  * to cpus on the system.
12884  *
12885  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12886  * the number of cpus on the same numa node as this adapter.  The vectors are
12887  * allocated without requesting OS affinity mapping.  A vector will be
12888  * allocated and assigned to each online and offline cpu.  If the cpu is
12889  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12890  * affinity will be set to the nearest peer cpu within the numa node that is
12891  * online.  If there are no online cpus within the numa node, affinity is not
12892  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12893  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12894  * configured.
12895  *
12896  * If numa mode is not enabled and there is more than 1 vector allocated, then
12897  * the driver relies on the managed irq interface where the OS assigns vector to
12898  * cpu affinity.  The driver will then use that affinity mapping to setup its
12899  * cpu mapping table.
12900  *
12901  * Return codes
12902  * 0 - successful
12903  * other values - error
12904  **/
12905 static int
12906 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12907 {
12908         int vectors, rc, index;
12909         char *name;
12910         const struct cpumask *aff_mask = NULL;
12911         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12912         struct lpfc_vector_map_info *cpup;
12913         struct lpfc_hba_eq_hdl *eqhdl;
12914         const struct cpumask *maskp;
12915         unsigned int flags = PCI_IRQ_MSIX;
12916
12917         /* Set up MSI-X multi-message vectors */
12918         vectors = phba->cfg_irq_chann;
12919
12920         if (phba->irq_chann_mode != NORMAL_MODE)
12921                 aff_mask = &phba->sli4_hba.irq_aff_mask;
12922
12923         if (aff_mask) {
12924                 cpu_cnt = cpumask_weight(aff_mask);
12925                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12926
12927                 /* cpu: iterates over aff_mask including offline or online
12928                  * cpu_select: iterates over online aff_mask to set affinity
12929                  */
12930                 cpu = cpumask_first(aff_mask);
12931                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12932         } else {
12933                 flags |= PCI_IRQ_AFFINITY;
12934         }
12935
12936         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12937         if (rc < 0) {
12938                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12939                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
12940                 goto vec_fail_out;
12941         }
12942         vectors = rc;
12943
12944         /* Assign MSI-X vectors to interrupt handlers */
12945         for (index = 0; index < vectors; index++) {
12946                 eqhdl = lpfc_get_eq_hdl(index);
12947                 name = eqhdl->handler_name;
12948                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12949                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12950                          LPFC_DRIVER_HANDLER_NAME"%d", index);
12951
12952                 eqhdl->idx = index;
12953                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12954                          &lpfc_sli4_hba_intr_handler, 0,
12955                          name, eqhdl);
12956                 if (rc) {
12957                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12958                                         "0486 MSI-X fast-path (%d) "
12959                                         "request_irq failed (%d)\n", index, rc);
12960                         goto cfg_fail_out;
12961                 }
12962
12963                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12964
12965                 if (aff_mask) {
12966                         /* If found a neighboring online cpu, set affinity */
12967                         if (cpu_select < nr_cpu_ids)
12968                                 lpfc_irq_set_aff(eqhdl, cpu_select);
12969
12970                         /* Assign EQ to cpu_map */
12971                         lpfc_assign_eq_map_info(phba, index,
12972                                                 LPFC_CPU_FIRST_IRQ,
12973                                                 cpu);
12974
12975                         /* Iterate to next offline or online cpu in aff_mask */
12976                         cpu = cpumask_next(cpu, aff_mask);
12977
12978                         /* Find next online cpu in aff_mask to set affinity */
12979                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12980                 } else if (vectors == 1) {
12981                         cpu = cpumask_first(cpu_present_mask);
12982                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12983                                                 cpu);
12984                 } else {
12985                         maskp = pci_irq_get_affinity(phba->pcidev, index);
12986
12987                         /* Loop through all CPUs associated with vector index */
12988                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12989                                 cpup = &phba->sli4_hba.cpu_map[cpu];
12990
12991                                 /* If this is the first CPU thats assigned to
12992                                  * this vector, set LPFC_CPU_FIRST_IRQ.
12993                                  *
12994                                  * With certain platforms its possible that irq
12995                                  * vectors are affinitized to all the cpu's.
12996                                  * This can result in each cpu_map.eq to be set
12997                                  * to the last vector, resulting in overwrite
12998                                  * of all the previous cpu_map.eq.  Ensure that
12999                                  * each vector receives a place in cpu_map.
13000                                  * Later call to lpfc_cpu_affinity_check will
13001                                  * ensure we are nicely balanced out.
13002                                  */
13003                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
13004                                         continue;
13005                                 lpfc_assign_eq_map_info(phba, index,
13006                                                         LPFC_CPU_FIRST_IRQ,
13007                                                         cpu);
13008                                 break;
13009                         }
13010                 }
13011         }
13012
13013         if (vectors != phba->cfg_irq_chann) {
13014                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13015                                 "3238 Reducing IO channels to match number of "
13016                                 "MSI-X vectors, requested %d got %d\n",
13017                                 phba->cfg_irq_chann, vectors);
13018                 if (phba->cfg_irq_chann > vectors)
13019                         phba->cfg_irq_chann = vectors;
13020         }
13021
13022         return rc;
13023
13024 cfg_fail_out:
13025         /* free the irq already requested */
13026         for (--index; index >= 0; index--) {
13027                 eqhdl = lpfc_get_eq_hdl(index);
13028                 lpfc_irq_clear_aff(eqhdl);
13029                 free_irq(eqhdl->irq, eqhdl);
13030         }
13031
13032         /* Unconfigure MSI-X capability structure */
13033         pci_free_irq_vectors(phba->pcidev);
13034
13035 vec_fail_out:
13036         return rc;
13037 }
13038
13039 /**
13040  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13041  * @phba: pointer to lpfc hba data structure.
13042  *
13043  * This routine is invoked to enable the MSI interrupt mode to device with
13044  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13045  * called to enable the MSI vector. The device driver is responsible for
13046  * calling the request_irq() to register MSI vector with a interrupt the
13047  * handler, which is done in this function.
13048  *
13049  * Return codes
13050  *      0 - successful
13051  *      other values - error
13052  **/
13053 static int
13054 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13055 {
13056         int rc, index;
13057         unsigned int cpu;
13058         struct lpfc_hba_eq_hdl *eqhdl;
13059
13060         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13061                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13062         if (rc > 0)
13063                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13064                                 "0487 PCI enable MSI mode success.\n");
13065         else {
13066                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13067                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
13068                 return rc ? rc : -1;
13069         }
13070
13071         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13072                          0, LPFC_DRIVER_NAME, phba);
13073         if (rc) {
13074                 pci_free_irq_vectors(phba->pcidev);
13075                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13076                                 "0490 MSI request_irq failed (%d)\n", rc);
13077                 return rc;
13078         }
13079
13080         eqhdl = lpfc_get_eq_hdl(0);
13081         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13082
13083         cpu = cpumask_first(cpu_present_mask);
13084         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13085
13086         for (index = 0; index < phba->cfg_irq_chann; index++) {
13087                 eqhdl = lpfc_get_eq_hdl(index);
13088                 eqhdl->idx = index;
13089         }
13090
13091         return 0;
13092 }
13093
13094 /**
13095  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13096  * @phba: pointer to lpfc hba data structure.
13097  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13098  *
13099  * This routine is invoked to enable device interrupt and associate driver's
13100  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13101  * interface spec. Depends on the interrupt mode configured to the driver,
13102  * the driver will try to fallback from the configured interrupt mode to an
13103  * interrupt mode which is supported by the platform, kernel, and device in
13104  * the order of:
13105  * MSI-X -> MSI -> IRQ.
13106  *
13107  * Return codes
13108  *      0 - successful
13109  *      other values - error
13110  **/
13111 static uint32_t
13112 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13113 {
13114         uint32_t intr_mode = LPFC_INTR_ERROR;
13115         int retval, idx;
13116
13117         if (cfg_mode == 2) {
13118                 /* Preparation before conf_msi mbox cmd */
13119                 retval = 0;
13120                 if (!retval) {
13121                         /* Now, try to enable MSI-X interrupt mode */
13122                         retval = lpfc_sli4_enable_msix(phba);
13123                         if (!retval) {
13124                                 /* Indicate initialization to MSI-X mode */
13125                                 phba->intr_type = MSIX;
13126                                 intr_mode = 2;
13127                         }
13128                 }
13129         }
13130
13131         /* Fallback to MSI if MSI-X initialization failed */
13132         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13133                 retval = lpfc_sli4_enable_msi(phba);
13134                 if (!retval) {
13135                         /* Indicate initialization to MSI mode */
13136                         phba->intr_type = MSI;
13137                         intr_mode = 1;
13138                 }
13139         }
13140
13141         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13142         if (phba->intr_type == NONE) {
13143                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13144                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13145                 if (!retval) {
13146                         struct lpfc_hba_eq_hdl *eqhdl;
13147                         unsigned int cpu;
13148
13149                         /* Indicate initialization to INTx mode */
13150                         phba->intr_type = INTx;
13151                         intr_mode = 0;
13152
13153                         eqhdl = lpfc_get_eq_hdl(0);
13154                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13155
13156                         cpu = cpumask_first(cpu_present_mask);
13157                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13158                                                 cpu);
13159                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13160                                 eqhdl = lpfc_get_eq_hdl(idx);
13161                                 eqhdl->idx = idx;
13162                         }
13163                 }
13164         }
13165         return intr_mode;
13166 }
13167
13168 /**
13169  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13170  * @phba: pointer to lpfc hba data structure.
13171  *
13172  * This routine is invoked to disable device interrupt and disassociate
13173  * the driver's interrupt handler(s) from interrupt vector(s) to device
13174  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13175  * will release the interrupt vector(s) for the message signaled interrupt.
13176  **/
13177 static void
13178 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13179 {
13180         /* Disable the currently initialized interrupt mode */
13181         if (phba->intr_type == MSIX) {
13182                 int index;
13183                 struct lpfc_hba_eq_hdl *eqhdl;
13184
13185                 /* Free up MSI-X multi-message vectors */
13186                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13187                         eqhdl = lpfc_get_eq_hdl(index);
13188                         lpfc_irq_clear_aff(eqhdl);
13189                         free_irq(eqhdl->irq, eqhdl);
13190                 }
13191         } else {
13192                 free_irq(phba->pcidev->irq, phba);
13193         }
13194
13195         pci_free_irq_vectors(phba->pcidev);
13196
13197         /* Reset interrupt management states */
13198         phba->intr_type = NONE;
13199         phba->sli.slistat.sli_intr = 0;
13200 }
13201
13202 /**
13203  * lpfc_unset_hba - Unset SLI3 hba device initialization
13204  * @phba: pointer to lpfc hba data structure.
13205  *
13206  * This routine is invoked to unset the HBA device initialization steps to
13207  * a device with SLI-3 interface spec.
13208  **/
13209 static void
13210 lpfc_unset_hba(struct lpfc_hba *phba)
13211 {
13212         struct lpfc_vport *vport = phba->pport;
13213         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
13214
13215         spin_lock_irq(shost->host_lock);
13216         vport->load_flag |= FC_UNLOADING;
13217         spin_unlock_irq(shost->host_lock);
13218
13219         kfree(phba->vpi_bmask);
13220         kfree(phba->vpi_ids);
13221
13222         lpfc_stop_hba_timers(phba);
13223
13224         phba->pport->work_port_events = 0;
13225
13226         lpfc_sli_hba_down(phba);
13227
13228         lpfc_sli_brdrestart(phba);
13229
13230         lpfc_sli_disable_intr(phba);
13231
13232         return;
13233 }
13234
13235 /**
13236  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13237  * @phba: Pointer to HBA context object.
13238  *
13239  * This function is called in the SLI4 code path to wait for completion
13240  * of device's XRIs exchange busy. It will check the XRI exchange busy
13241  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13242  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13243  * I/Os every 30 seconds, log error message, and wait forever. Only when
13244  * all XRI exchange busy complete, the driver unload shall proceed with
13245  * invoking the function reset ioctl mailbox command to the CNA and the
13246  * the rest of the driver unload resource release.
13247  **/
13248 static void
13249 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13250 {
13251         struct lpfc_sli4_hdw_queue *qp;
13252         int idx, ccnt;
13253         int wait_time = 0;
13254         int io_xri_cmpl = 1;
13255         int nvmet_xri_cmpl = 1;
13256         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13257
13258         /* Driver just aborted IOs during the hba_unset process.  Pause
13259          * here to give the HBA time to complete the IO and get entries
13260          * into the abts lists.
13261          */
13262         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13263
13264         /* Wait for NVME pending IO to flush back to transport. */
13265         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13266                 lpfc_nvme_wait_for_io_drain(phba);
13267
13268         ccnt = 0;
13269         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13270                 qp = &phba->sli4_hba.hdwq[idx];
13271                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13272                 if (!io_xri_cmpl) /* if list is NOT empty */
13273                         ccnt++;
13274         }
13275         if (ccnt)
13276                 io_xri_cmpl = 0;
13277
13278         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13279                 nvmet_xri_cmpl =
13280                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13281         }
13282
13283         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13284                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13285                         if (!nvmet_xri_cmpl)
13286                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13287                                                 "6424 NVMET XRI exchange busy "
13288                                                 "wait time: %d seconds.\n",
13289                                                 wait_time/1000);
13290                         if (!io_xri_cmpl)
13291                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13292                                                 "6100 IO XRI exchange busy "
13293                                                 "wait time: %d seconds.\n",
13294                                                 wait_time/1000);
13295                         if (!els_xri_cmpl)
13296                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13297                                                 "2878 ELS XRI exchange busy "
13298                                                 "wait time: %d seconds.\n",
13299                                                 wait_time/1000);
13300                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13301                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13302                 } else {
13303                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13304                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13305                 }
13306
13307                 ccnt = 0;
13308                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13309                         qp = &phba->sli4_hba.hdwq[idx];
13310                         io_xri_cmpl = list_empty(
13311                             &qp->lpfc_abts_io_buf_list);
13312                         if (!io_xri_cmpl) /* if list is NOT empty */
13313                                 ccnt++;
13314                 }
13315                 if (ccnt)
13316                         io_xri_cmpl = 0;
13317
13318                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13319                         nvmet_xri_cmpl = list_empty(
13320                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13321                 }
13322                 els_xri_cmpl =
13323                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13324
13325         }
13326 }
13327
13328 /**
13329  * lpfc_sli4_hba_unset - Unset the fcoe hba
13330  * @phba: Pointer to HBA context object.
13331  *
13332  * This function is called in the SLI4 code path to reset the HBA's FCoE
13333  * function. The caller is not required to hold any lock. This routine
13334  * issues PCI function reset mailbox command to reset the FCoE function.
13335  * At the end of the function, it calls lpfc_hba_down_post function to
13336  * free any pending commands.
13337  **/
13338 static void
13339 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13340 {
13341         int wait_cnt = 0;
13342         LPFC_MBOXQ_t *mboxq;
13343         struct pci_dev *pdev = phba->pcidev;
13344
13345         lpfc_stop_hba_timers(phba);
13346         hrtimer_cancel(&phba->cmf_timer);
13347
13348         if (phba->pport)
13349                 phba->sli4_hba.intr_enable = 0;
13350
13351         /*
13352          * Gracefully wait out the potential current outstanding asynchronous
13353          * mailbox command.
13354          */
13355
13356         /* First, block any pending async mailbox command from posted */
13357         spin_lock_irq(&phba->hbalock);
13358         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13359         spin_unlock_irq(&phba->hbalock);
13360         /* Now, trying to wait it out if we can */
13361         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13362                 msleep(10);
13363                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13364                         break;
13365         }
13366         /* Forcefully release the outstanding mailbox command if timed out */
13367         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13368                 spin_lock_irq(&phba->hbalock);
13369                 mboxq = phba->sli.mbox_active;
13370                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13371                 __lpfc_mbox_cmpl_put(phba, mboxq);
13372                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13373                 phba->sli.mbox_active = NULL;
13374                 spin_unlock_irq(&phba->hbalock);
13375         }
13376
13377         /* Abort all iocbs associated with the hba */
13378         lpfc_sli_hba_iocb_abort(phba);
13379
13380         if (!pci_channel_offline(phba->pcidev))
13381                 /* Wait for completion of device XRI exchange busy */
13382                 lpfc_sli4_xri_exchange_busy_wait(phba);
13383
13384         /* per-phba callback de-registration for hotplug event */
13385         if (phba->pport)
13386                 lpfc_cpuhp_remove(phba);
13387
13388         /* Disable PCI subsystem interrupt */
13389         lpfc_sli4_disable_intr(phba);
13390
13391         /* Disable SR-IOV if enabled */
13392         if (phba->cfg_sriov_nr_virtfn)
13393                 pci_disable_sriov(pdev);
13394
13395         /* Stop kthread signal shall trigger work_done one more time */
13396         kthread_stop(phba->worker_thread);
13397
13398         /* Disable FW logging to host memory */
13399         lpfc_ras_stop_fwlog(phba);
13400
13401         /* Reset SLI4 HBA FCoE function */
13402         lpfc_pci_function_reset(phba);
13403
13404         /* release all queue allocated resources. */
13405         lpfc_sli4_queue_destroy(phba);
13406
13407         /* Free RAS DMA memory */
13408         if (phba->ras_fwlog.ras_enabled)
13409                 lpfc_sli4_ras_dma_free(phba);
13410
13411         /* Stop the SLI4 device port */
13412         if (phba->pport)
13413                 phba->pport->work_port_events = 0;
13414 }
13415
13416 static uint32_t
13417 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13418 {
13419         uint32_t msb = 0;
13420         uint32_t bit;
13421
13422         for (bit = 0; bit < 8; bit++) {
13423                 msb = (crc >> 31) & 1;
13424                 crc <<= 1;
13425
13426                 if (msb ^ (byte & 1)) {
13427                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13428                         crc |= 1;
13429                 }
13430                 byte >>= 1;
13431         }
13432         return crc;
13433 }
13434
13435 static uint32_t
13436 lpfc_cgn_reverse_bits(uint32_t wd)
13437 {
13438         uint32_t result = 0;
13439         uint32_t i;
13440
13441         for (i = 0; i < 32; i++) {
13442                 result <<= 1;
13443                 result |= (1 & (wd >> i));
13444         }
13445         return result;
13446 }
13447
13448 /*
13449  * The routine corresponds with the algorithm the HBA firmware
13450  * uses to validate the data integrity.
13451  */
13452 uint32_t
13453 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13454 {
13455         uint32_t  i;
13456         uint32_t result;
13457         uint8_t  *data = (uint8_t *)ptr;
13458
13459         for (i = 0; i < byteLen; ++i)
13460                 crc = lpfc_cgn_crc32(crc, data[i]);
13461
13462         result = ~lpfc_cgn_reverse_bits(crc);
13463         return result;
13464 }
13465
13466 void
13467 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13468 {
13469         struct lpfc_cgn_info *cp;
13470         struct timespec64 cmpl_time;
13471         struct tm broken;
13472         uint16_t size;
13473         uint32_t crc;
13474
13475         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13476                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13477
13478         if (!phba->cgn_i)
13479                 return;
13480         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13481
13482         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13483         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13484         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13485         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13486
13487         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13488         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13489         atomic64_set(&phba->cgn_latency_evt, 0);
13490         phba->cgn_evt_minute = 0;
13491         phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13492
13493         memset(cp, 0xff, offsetof(struct lpfc_cgn_info, cgn_stat));
13494         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13495         cp->cgn_info_version = LPFC_CGN_INFO_V3;
13496
13497         /* cgn parameters */
13498         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13499         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13500         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13501         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13502
13503         ktime_get_real_ts64(&cmpl_time);
13504         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13505
13506         cp->cgn_info_month = broken.tm_mon + 1;
13507         cp->cgn_info_day = broken.tm_mday;
13508         cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13509         cp->cgn_info_hour = broken.tm_hour;
13510         cp->cgn_info_minute = broken.tm_min;
13511         cp->cgn_info_second = broken.tm_sec;
13512
13513         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13514                         "2643 CGNInfo Init: Start Time "
13515                         "%d/%d/%d %d:%d:%d\n",
13516                         cp->cgn_info_day, cp->cgn_info_month,
13517                         cp->cgn_info_year, cp->cgn_info_hour,
13518                         cp->cgn_info_minute, cp->cgn_info_second);
13519
13520         /* Fill in default LUN qdepth */
13521         if (phba->pport) {
13522                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13523                 cp->cgn_lunq = cpu_to_le16(size);
13524         }
13525
13526         /* last used Index initialized to 0xff already */
13527
13528         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13529         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13530         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13531         cp->cgn_info_crc = cpu_to_le32(crc);
13532
13533         phba->cgn_evt_timestamp = jiffies +
13534                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13535 }
13536
13537 void
13538 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13539 {
13540         struct lpfc_cgn_info *cp;
13541         struct timespec64 cmpl_time;
13542         struct tm broken;
13543         uint32_t crc;
13544
13545         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13546                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13547
13548         if (!phba->cgn_i)
13549                 return;
13550
13551         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13552         memset(&cp->cgn_stat, 0, sizeof(cp->cgn_stat));
13553
13554         ktime_get_real_ts64(&cmpl_time);
13555         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13556
13557         cp->cgn_stat_month = broken.tm_mon + 1;
13558         cp->cgn_stat_day = broken.tm_mday;
13559         cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13560         cp->cgn_stat_hour = broken.tm_hour;
13561         cp->cgn_stat_minute = broken.tm_min;
13562
13563         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13564                         "2647 CGNstat Init: Start Time "
13565                         "%d/%d/%d %d:%d\n",
13566                         cp->cgn_stat_day, cp->cgn_stat_month,
13567                         cp->cgn_stat_year, cp->cgn_stat_hour,
13568                         cp->cgn_stat_minute);
13569
13570         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13571         cp->cgn_info_crc = cpu_to_le32(crc);
13572 }
13573
13574 /**
13575  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13576  * @phba: Pointer to hba context object.
13577  * @reg: flag to determine register or unregister.
13578  */
13579 static int
13580 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13581 {
13582         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13583         union  lpfc_sli4_cfg_shdr *shdr;
13584         uint32_t shdr_status, shdr_add_status;
13585         LPFC_MBOXQ_t *mboxq;
13586         int length, rc;
13587
13588         if (!phba->cgn_i)
13589                 return -ENXIO;
13590
13591         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13592         if (!mboxq) {
13593                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13594                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13595                                 "HBA state x%x reg %d\n",
13596                                 phba->pport->port_state, reg);
13597                 return -ENOMEM;
13598         }
13599
13600         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13601                 sizeof(struct lpfc_sli4_cfg_mhdr));
13602         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13603                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13604                          LPFC_SLI4_MBX_EMBED);
13605         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13606         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13607         if (reg > 0)
13608                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13609         else
13610                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13611         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13612         reg_congestion_buf->addr_lo =
13613                 putPaddrLow(phba->cgn_i->phys);
13614         reg_congestion_buf->addr_hi =
13615                 putPaddrHigh(phba->cgn_i->phys);
13616
13617         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13618         shdr = (union lpfc_sli4_cfg_shdr *)
13619                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13620         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13621         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13622                                  &shdr->response);
13623         mempool_free(mboxq, phba->mbox_mem_pool);
13624         if (shdr_status || shdr_add_status || rc) {
13625                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13626                                 "2642 REG_CONGESTION_BUF mailbox "
13627                                 "failed with status x%x add_status x%x,"
13628                                 " mbx status x%x reg %d\n",
13629                                 shdr_status, shdr_add_status, rc, reg);
13630                 return -ENXIO;
13631         }
13632         return 0;
13633 }
13634
13635 int
13636 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13637 {
13638         lpfc_cmf_stop(phba);
13639         return __lpfc_reg_congestion_buf(phba, 0);
13640 }
13641
13642 int
13643 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13644 {
13645         return __lpfc_reg_congestion_buf(phba, 1);
13646 }
13647
13648 /**
13649  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13650  * @phba: Pointer to HBA context object.
13651  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13652  *
13653  * This function is called in the SLI4 code path to read the port's
13654  * sli4 capabilities.
13655  *
13656  * This function may be be called from any context that can block-wait
13657  * for the completion.  The expectation is that this routine is called
13658  * typically from probe_one or from the online routine.
13659  **/
13660 int
13661 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13662 {
13663         int rc;
13664         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13665         struct lpfc_pc_sli4_params *sli4_params;
13666         uint32_t mbox_tmo;
13667         int length;
13668         bool exp_wqcq_pages = true;
13669         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13670
13671         /*
13672          * By default, the driver assumes the SLI4 port requires RPI
13673          * header postings.  The SLI4_PARAM response will correct this
13674          * assumption.
13675          */
13676         phba->sli4_hba.rpi_hdrs_in_use = 1;
13677
13678         /* Read the port's SLI4 Config Parameters */
13679         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13680                   sizeof(struct lpfc_sli4_cfg_mhdr));
13681         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13682                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13683                          length, LPFC_SLI4_MBX_EMBED);
13684         if (!phba->sli4_hba.intr_enable)
13685                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13686         else {
13687                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13688                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13689         }
13690         if (unlikely(rc))
13691                 return rc;
13692         sli4_params = &phba->sli4_hba.pc_sli4_params;
13693         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13694         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13695         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13696         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13697         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13698                                              mbx_sli4_parameters);
13699         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13700                                              mbx_sli4_parameters);
13701         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13702                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13703         else
13704                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13705         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13706         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13707                                            mbx_sli4_parameters);
13708         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13709         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13710         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13711         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13712         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13713         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13714         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13715         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13716         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13717         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13718         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13719                                             mbx_sli4_parameters);
13720         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13721         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13722                                            mbx_sli4_parameters);
13723         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13724         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13725
13726         /* Check for Extended Pre-Registered SGL support */
13727         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13728
13729         /* Check for firmware nvme support */
13730         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13731                      bf_get(cfg_xib, mbx_sli4_parameters));
13732
13733         if (rc) {
13734                 /* Save this to indicate the Firmware supports NVME */
13735                 sli4_params->nvme = 1;
13736
13737                 /* Firmware NVME support, check driver FC4 NVME support */
13738                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13739                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13740                                         "6133 Disabling NVME support: "
13741                                         "FC4 type not supported: x%x\n",
13742                                         phba->cfg_enable_fc4_type);
13743                         goto fcponly;
13744                 }
13745         } else {
13746                 /* No firmware NVME support, check driver FC4 NVME support */
13747                 sli4_params->nvme = 0;
13748                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13749                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13750                                         "6101 Disabling NVME support: Not "
13751                                         "supported by firmware (%d %d) x%x\n",
13752                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13753                                         bf_get(cfg_xib, mbx_sli4_parameters),
13754                                         phba->cfg_enable_fc4_type);
13755 fcponly:
13756                         phba->nvmet_support = 0;
13757                         phba->cfg_nvmet_mrq = 0;
13758                         phba->cfg_nvme_seg_cnt = 0;
13759
13760                         /* If no FC4 type support, move to just SCSI support */
13761                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13762                                 return -ENODEV;
13763                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13764                 }
13765         }
13766
13767         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13768          * accommodate 512K and 1M IOs in a single nvme buf.
13769          */
13770         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13771                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13772
13773         /* Enable embedded Payload BDE if support is indicated */
13774         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13775                 phba->cfg_enable_pbde = 1;
13776         else
13777                 phba->cfg_enable_pbde = 0;
13778
13779         /*
13780          * To support Suppress Response feature we must satisfy 3 conditions.
13781          * lpfc_suppress_rsp module parameter must be set (default).
13782          * In SLI4-Parameters Descriptor:
13783          * Extended Inline Buffers (XIB) must be supported.
13784          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13785          * (double negative).
13786          */
13787         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13788             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13789                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13790         else
13791                 phba->cfg_suppress_rsp = 0;
13792
13793         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13794                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13795
13796         /* Make sure that sge_supp_len can be handled by the driver */
13797         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13798                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13799
13800         /*
13801          * Check whether the adapter supports an embedded copy of the
13802          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13803          * to use this option, 128-byte WQEs must be used.
13804          */
13805         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13806                 phba->fcp_embed_io = 1;
13807         else
13808                 phba->fcp_embed_io = 0;
13809
13810         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13811                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13812                         bf_get(cfg_xib, mbx_sli4_parameters),
13813                         phba->cfg_enable_pbde,
13814                         phba->fcp_embed_io, sli4_params->nvme,
13815                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13816
13817         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13818             LPFC_SLI_INTF_IF_TYPE_2) &&
13819             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13820                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13821                 exp_wqcq_pages = false;
13822
13823         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13824             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13825             exp_wqcq_pages &&
13826             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13827                 phba->enab_exp_wqcq_pages = 1;
13828         else
13829                 phba->enab_exp_wqcq_pages = 0;
13830         /*
13831          * Check if the SLI port supports MDS Diagnostics
13832          */
13833         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13834                 phba->mds_diags_support = 1;
13835         else
13836                 phba->mds_diags_support = 0;
13837
13838         /*
13839          * Check if the SLI port supports NSLER
13840          */
13841         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13842                 phba->nsler = 1;
13843         else
13844                 phba->nsler = 0;
13845
13846         return 0;
13847 }
13848
13849 /**
13850  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13851  * @pdev: pointer to PCI device
13852  * @pid: pointer to PCI device identifier
13853  *
13854  * This routine is to be called to attach a device with SLI-3 interface spec
13855  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13856  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13857  * information of the device and driver to see if the driver state that it can
13858  * support this kind of device. If the match is successful, the driver core
13859  * invokes this routine. If this routine determines it can claim the HBA, it
13860  * does all the initialization that it needs to do to handle the HBA properly.
13861  *
13862  * Return code
13863  *      0 - driver can claim the device
13864  *      negative value - driver can not claim the device
13865  **/
13866 static int
13867 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13868 {
13869         struct lpfc_hba   *phba;
13870         struct lpfc_vport *vport = NULL;
13871         struct Scsi_Host  *shost = NULL;
13872         int error;
13873         uint32_t cfg_mode, intr_mode;
13874
13875         /* Allocate memory for HBA structure */
13876         phba = lpfc_hba_alloc(pdev);
13877         if (!phba)
13878                 return -ENOMEM;
13879
13880         /* Perform generic PCI device enabling operation */
13881         error = lpfc_enable_pci_dev(phba);
13882         if (error)
13883                 goto out_free_phba;
13884
13885         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13886         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13887         if (error)
13888                 goto out_disable_pci_dev;
13889
13890         /* Set up SLI-3 specific device PCI memory space */
13891         error = lpfc_sli_pci_mem_setup(phba);
13892         if (error) {
13893                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13894                                 "1402 Failed to set up pci memory space.\n");
13895                 goto out_disable_pci_dev;
13896         }
13897
13898         /* Set up SLI-3 specific device driver resources */
13899         error = lpfc_sli_driver_resource_setup(phba);
13900         if (error) {
13901                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13902                                 "1404 Failed to set up driver resource.\n");
13903                 goto out_unset_pci_mem_s3;
13904         }
13905
13906         /* Initialize and populate the iocb list per host */
13907
13908         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13909         if (error) {
13910                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13911                                 "1405 Failed to initialize iocb list.\n");
13912                 goto out_unset_driver_resource_s3;
13913         }
13914
13915         /* Set up common device driver resources */
13916         error = lpfc_setup_driver_resource_phase2(phba);
13917         if (error) {
13918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13919                                 "1406 Failed to set up driver resource.\n");
13920                 goto out_free_iocb_list;
13921         }
13922
13923         /* Get the default values for Model Name and Description */
13924         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13925
13926         /* Create SCSI host to the physical port */
13927         error = lpfc_create_shost(phba);
13928         if (error) {
13929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13930                                 "1407 Failed to create scsi host.\n");
13931                 goto out_unset_driver_resource;
13932         }
13933
13934         /* Configure sysfs attributes */
13935         vport = phba->pport;
13936         error = lpfc_alloc_sysfs_attr(vport);
13937         if (error) {
13938                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13939                                 "1476 Failed to allocate sysfs attr\n");
13940                 goto out_destroy_shost;
13941         }
13942
13943         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13944         /* Now, trying to enable interrupt and bring up the device */
13945         cfg_mode = phba->cfg_use_msi;
13946         while (true) {
13947                 /* Put device to a known state before enabling interrupt */
13948                 lpfc_stop_port(phba);
13949                 /* Configure and enable interrupt */
13950                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13951                 if (intr_mode == LPFC_INTR_ERROR) {
13952                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13953                                         "0431 Failed to enable interrupt.\n");
13954                         error = -ENODEV;
13955                         goto out_free_sysfs_attr;
13956                 }
13957                 /* SLI-3 HBA setup */
13958                 if (lpfc_sli_hba_setup(phba)) {
13959                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13960                                         "1477 Failed to set up hba\n");
13961                         error = -ENODEV;
13962                         goto out_remove_device;
13963                 }
13964
13965                 /* Wait 50ms for the interrupts of previous mailbox commands */
13966                 msleep(50);
13967                 /* Check active interrupts on message signaled interrupts */
13968                 if (intr_mode == 0 ||
13969                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13970                         /* Log the current active interrupt mode */
13971                         phba->intr_mode = intr_mode;
13972                         lpfc_log_intr_mode(phba, intr_mode);
13973                         break;
13974                 } else {
13975                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13976                                         "0447 Configure interrupt mode (%d) "
13977                                         "failed active interrupt test.\n",
13978                                         intr_mode);
13979                         /* Disable the current interrupt mode */
13980                         lpfc_sli_disable_intr(phba);
13981                         /* Try next level of interrupt mode */
13982                         cfg_mode = --intr_mode;
13983                 }
13984         }
13985
13986         /* Perform post initialization setup */
13987         lpfc_post_init_setup(phba);
13988
13989         /* Check if there are static vports to be created. */
13990         lpfc_create_static_vport(phba);
13991
13992         return 0;
13993
13994 out_remove_device:
13995         lpfc_unset_hba(phba);
13996 out_free_sysfs_attr:
13997         lpfc_free_sysfs_attr(vport);
13998 out_destroy_shost:
13999         lpfc_destroy_shost(phba);
14000 out_unset_driver_resource:
14001         lpfc_unset_driver_resource_phase2(phba);
14002 out_free_iocb_list:
14003         lpfc_free_iocb_list(phba);
14004 out_unset_driver_resource_s3:
14005         lpfc_sli_driver_resource_unset(phba);
14006 out_unset_pci_mem_s3:
14007         lpfc_sli_pci_mem_unset(phba);
14008 out_disable_pci_dev:
14009         lpfc_disable_pci_dev(phba);
14010         if (shost)
14011                 scsi_host_put(shost);
14012 out_free_phba:
14013         lpfc_hba_free(phba);
14014         return error;
14015 }
14016
14017 /**
14018  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
14019  * @pdev: pointer to PCI device
14020  *
14021  * This routine is to be called to disattach a device with SLI-3 interface
14022  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14023  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14024  * device to be removed from the PCI subsystem properly.
14025  **/
14026 static void
14027 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14028 {
14029         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
14030         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14031         struct lpfc_vport **vports;
14032         struct lpfc_hba   *phba = vport->phba;
14033         int i;
14034
14035         spin_lock_irq(&phba->hbalock);
14036         vport->load_flag |= FC_UNLOADING;
14037         spin_unlock_irq(&phba->hbalock);
14038
14039         lpfc_free_sysfs_attr(vport);
14040
14041         /* Release all the vports against this physical port */
14042         vports = lpfc_create_vport_work_array(phba);
14043         if (vports != NULL)
14044                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14045                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14046                                 continue;
14047                         fc_vport_terminate(vports[i]->fc_vport);
14048                 }
14049         lpfc_destroy_vport_work_array(phba, vports);
14050
14051         /* Remove FC host with the physical port */
14052         fc_remove_host(shost);
14053         scsi_remove_host(shost);
14054
14055         /* Clean up all nodes, mailboxes and IOs. */
14056         lpfc_cleanup(vport);
14057
14058         /*
14059          * Bring down the SLI Layer. This step disable all interrupts,
14060          * clears the rings, discards all mailbox commands, and resets
14061          * the HBA.
14062          */
14063
14064         /* HBA interrupt will be disabled after this call */
14065         lpfc_sli_hba_down(phba);
14066         /* Stop kthread signal shall trigger work_done one more time */
14067         kthread_stop(phba->worker_thread);
14068         /* Final cleanup of txcmplq and reset the HBA */
14069         lpfc_sli_brdrestart(phba);
14070
14071         kfree(phba->vpi_bmask);
14072         kfree(phba->vpi_ids);
14073
14074         lpfc_stop_hba_timers(phba);
14075         spin_lock_irq(&phba->port_list_lock);
14076         list_del_init(&vport->listentry);
14077         spin_unlock_irq(&phba->port_list_lock);
14078
14079         lpfc_debugfs_terminate(vport);
14080
14081         /* Disable SR-IOV if enabled */
14082         if (phba->cfg_sriov_nr_virtfn)
14083                 pci_disable_sriov(pdev);
14084
14085         /* Disable interrupt */
14086         lpfc_sli_disable_intr(phba);
14087
14088         scsi_host_put(shost);
14089
14090         /*
14091          * Call scsi_free before mem_free since scsi bufs are released to their
14092          * corresponding pools here.
14093          */
14094         lpfc_scsi_free(phba);
14095         lpfc_free_iocb_list(phba);
14096
14097         lpfc_mem_free_all(phba);
14098
14099         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14100                           phba->hbqslimp.virt, phba->hbqslimp.phys);
14101
14102         /* Free resources associated with SLI2 interface */
14103         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14104                           phba->slim2p.virt, phba->slim2p.phys);
14105
14106         /* unmap adapter SLIM and Control Registers */
14107         iounmap(phba->ctrl_regs_memmap_p);
14108         iounmap(phba->slim_memmap_p);
14109
14110         lpfc_hba_free(phba);
14111
14112         pci_release_mem_regions(pdev);
14113         pci_disable_device(pdev);
14114 }
14115
14116 /**
14117  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14118  * @dev_d: pointer to device
14119  *
14120  * This routine is to be called from the kernel's PCI subsystem to support
14121  * system Power Management (PM) to device with SLI-3 interface spec. When
14122  * PM invokes this method, it quiesces the device by stopping the driver's
14123  * worker thread for the device, turning off device's interrupt and DMA,
14124  * and bring the device offline. Note that as the driver implements the
14125  * minimum PM requirements to a power-aware driver's PM support for the
14126  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14127  * to the suspend() method call will be treated as SUSPEND and the driver will
14128  * fully reinitialize its device during resume() method call, the driver will
14129  * set device to PCI_D3hot state in PCI config space instead of setting it
14130  * according to the @msg provided by the PM.
14131  *
14132  * Return code
14133  *      0 - driver suspended the device
14134  *      Error otherwise
14135  **/
14136 static int __maybe_unused
14137 lpfc_pci_suspend_one_s3(struct device *dev_d)
14138 {
14139         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14140         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14141
14142         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14143                         "0473 PCI device Power Management suspend.\n");
14144
14145         /* Bring down the device */
14146         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14147         lpfc_offline(phba);
14148         kthread_stop(phba->worker_thread);
14149
14150         /* Disable interrupt from device */
14151         lpfc_sli_disable_intr(phba);
14152
14153         return 0;
14154 }
14155
14156 /**
14157  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14158  * @dev_d: pointer to device
14159  *
14160  * This routine is to be called from the kernel's PCI subsystem to support
14161  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14162  * invokes this method, it restores the device's PCI config space state and
14163  * fully reinitializes the device and brings it online. Note that as the
14164  * driver implements the minimum PM requirements to a power-aware driver's
14165  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14166  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14167  * driver will fully reinitialize its device during resume() method call,
14168  * the device will be set to PCI_D0 directly in PCI config space before
14169  * restoring the state.
14170  *
14171  * Return code
14172  *      0 - driver suspended the device
14173  *      Error otherwise
14174  **/
14175 static int __maybe_unused
14176 lpfc_pci_resume_one_s3(struct device *dev_d)
14177 {
14178         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14179         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14180         uint32_t intr_mode;
14181         int error;
14182
14183         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14184                         "0452 PCI device Power Management resume.\n");
14185
14186         /* Startup the kernel thread for this host adapter. */
14187         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14188                                         "lpfc_worker_%d", phba->brd_no);
14189         if (IS_ERR(phba->worker_thread)) {
14190                 error = PTR_ERR(phba->worker_thread);
14191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14192                                 "0434 PM resume failed to start worker "
14193                                 "thread: error=x%x.\n", error);
14194                 return error;
14195         }
14196
14197         /* Init cpu_map array */
14198         lpfc_cpu_map_array_init(phba);
14199         /* Init hba_eq_hdl array */
14200         lpfc_hba_eq_hdl_array_init(phba);
14201         /* Configure and enable interrupt */
14202         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14203         if (intr_mode == LPFC_INTR_ERROR) {
14204                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14205                                 "0430 PM resume Failed to enable interrupt\n");
14206                 return -EIO;
14207         } else
14208                 phba->intr_mode = intr_mode;
14209
14210         /* Restart HBA and bring it online */
14211         lpfc_sli_brdrestart(phba);
14212         lpfc_online(phba);
14213
14214         /* Log the current active interrupt mode */
14215         lpfc_log_intr_mode(phba, phba->intr_mode);
14216
14217         return 0;
14218 }
14219
14220 /**
14221  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14222  * @phba: pointer to lpfc hba data structure.
14223  *
14224  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14225  * aborts all the outstanding SCSI I/Os to the pci device.
14226  **/
14227 static void
14228 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14229 {
14230         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14231                         "2723 PCI channel I/O abort preparing for recovery\n");
14232
14233         /*
14234          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14235          * and let the SCSI mid-layer to retry them to recover.
14236          */
14237         lpfc_sli_abort_fcp_rings(phba);
14238 }
14239
14240 /**
14241  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14242  * @phba: pointer to lpfc hba data structure.
14243  *
14244  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14245  * disables the device interrupt and pci device, and aborts the internal FCP
14246  * pending I/Os.
14247  **/
14248 static void
14249 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14250 {
14251         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14252                         "2710 PCI channel disable preparing for reset\n");
14253
14254         /* Block any management I/Os to the device */
14255         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14256
14257         /* Block all SCSI devices' I/Os on the host */
14258         lpfc_scsi_dev_block(phba);
14259
14260         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14261         lpfc_sli_flush_io_rings(phba);
14262
14263         /* stop all timers */
14264         lpfc_stop_hba_timers(phba);
14265
14266         /* Disable interrupt and pci device */
14267         lpfc_sli_disable_intr(phba);
14268         pci_disable_device(phba->pcidev);
14269 }
14270
14271 /**
14272  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14273  * @phba: pointer to lpfc hba data structure.
14274  *
14275  * This routine is called to prepare the SLI3 device for PCI slot permanently
14276  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14277  * pending I/Os.
14278  **/
14279 static void
14280 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14281 {
14282         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14283                         "2711 PCI channel permanent disable for failure\n");
14284         /* Block all SCSI devices' I/Os on the host */
14285         lpfc_scsi_dev_block(phba);
14286         lpfc_sli4_prep_dev_for_reset(phba);
14287
14288         /* stop all timers */
14289         lpfc_stop_hba_timers(phba);
14290
14291         /* Clean up all driver's outstanding SCSI I/Os */
14292         lpfc_sli_flush_io_rings(phba);
14293 }
14294
14295 /**
14296  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14297  * @pdev: pointer to PCI device.
14298  * @state: the current PCI connection state.
14299  *
14300  * This routine is called from the PCI subsystem for I/O error handling to
14301  * device with SLI-3 interface spec. This function is called by the PCI
14302  * subsystem after a PCI bus error affecting this device has been detected.
14303  * When this function is invoked, it will need to stop all the I/Os and
14304  * interrupt(s) to the device. Once that is done, it will return
14305  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14306  * as desired.
14307  *
14308  * Return codes
14309  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14310  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14311  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14312  **/
14313 static pci_ers_result_t
14314 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14315 {
14316         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14317         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14318
14319         switch (state) {
14320         case pci_channel_io_normal:
14321                 /* Non-fatal error, prepare for recovery */
14322                 lpfc_sli_prep_dev_for_recover(phba);
14323                 return PCI_ERS_RESULT_CAN_RECOVER;
14324         case pci_channel_io_frozen:
14325                 /* Fatal error, prepare for slot reset */
14326                 lpfc_sli_prep_dev_for_reset(phba);
14327                 return PCI_ERS_RESULT_NEED_RESET;
14328         case pci_channel_io_perm_failure:
14329                 /* Permanent failure, prepare for device down */
14330                 lpfc_sli_prep_dev_for_perm_failure(phba);
14331                 return PCI_ERS_RESULT_DISCONNECT;
14332         default:
14333                 /* Unknown state, prepare and request slot reset */
14334                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14335                                 "0472 Unknown PCI error state: x%x\n", state);
14336                 lpfc_sli_prep_dev_for_reset(phba);
14337                 return PCI_ERS_RESULT_NEED_RESET;
14338         }
14339 }
14340
14341 /**
14342  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14343  * @pdev: pointer to PCI device.
14344  *
14345  * This routine is called from the PCI subsystem for error handling to
14346  * device with SLI-3 interface spec. This is called after PCI bus has been
14347  * reset to restart the PCI card from scratch, as if from a cold-boot.
14348  * During the PCI subsystem error recovery, after driver returns
14349  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14350  * recovery and then call this routine before calling the .resume method
14351  * to recover the device. This function will initialize the HBA device,
14352  * enable the interrupt, but it will just put the HBA to offline state
14353  * without passing any I/O traffic.
14354  *
14355  * Return codes
14356  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14357  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14358  */
14359 static pci_ers_result_t
14360 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14361 {
14362         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14363         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14364         struct lpfc_sli *psli = &phba->sli;
14365         uint32_t intr_mode;
14366
14367         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14368         if (pci_enable_device_mem(pdev)) {
14369                 printk(KERN_ERR "lpfc: Cannot re-enable "
14370                         "PCI device after reset.\n");
14371                 return PCI_ERS_RESULT_DISCONNECT;
14372         }
14373
14374         pci_restore_state(pdev);
14375
14376         /*
14377          * As the new kernel behavior of pci_restore_state() API call clears
14378          * device saved_state flag, need to save the restored state again.
14379          */
14380         pci_save_state(pdev);
14381
14382         if (pdev->is_busmaster)
14383                 pci_set_master(pdev);
14384
14385         spin_lock_irq(&phba->hbalock);
14386         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14387         spin_unlock_irq(&phba->hbalock);
14388
14389         /* Configure and enable interrupt */
14390         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14391         if (intr_mode == LPFC_INTR_ERROR) {
14392                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14393                                 "0427 Cannot re-enable interrupt after "
14394                                 "slot reset.\n");
14395                 return PCI_ERS_RESULT_DISCONNECT;
14396         } else
14397                 phba->intr_mode = intr_mode;
14398
14399         /* Take device offline, it will perform cleanup */
14400         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14401         lpfc_offline(phba);
14402         lpfc_sli_brdrestart(phba);
14403
14404         /* Log the current active interrupt mode */
14405         lpfc_log_intr_mode(phba, phba->intr_mode);
14406
14407         return PCI_ERS_RESULT_RECOVERED;
14408 }
14409
14410 /**
14411  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14412  * @pdev: pointer to PCI device
14413  *
14414  * This routine is called from the PCI subsystem for error handling to device
14415  * with SLI-3 interface spec. It is called when kernel error recovery tells
14416  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14417  * error recovery. After this call, traffic can start to flow from this device
14418  * again.
14419  */
14420 static void
14421 lpfc_io_resume_s3(struct pci_dev *pdev)
14422 {
14423         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14424         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14425
14426         /* Bring device online, it will be no-op for non-fatal error resume */
14427         lpfc_online(phba);
14428 }
14429
14430 /**
14431  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14432  * @phba: pointer to lpfc hba data structure.
14433  *
14434  * returns the number of ELS/CT IOCBs to reserve
14435  **/
14436 int
14437 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14438 {
14439         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14440
14441         if (phba->sli_rev == LPFC_SLI_REV4) {
14442                 if (max_xri <= 100)
14443                         return 10;
14444                 else if (max_xri <= 256)
14445                         return 25;
14446                 else if (max_xri <= 512)
14447                         return 50;
14448                 else if (max_xri <= 1024)
14449                         return 100;
14450                 else if (max_xri <= 1536)
14451                         return 150;
14452                 else if (max_xri <= 2048)
14453                         return 200;
14454                 else
14455                         return 250;
14456         } else
14457                 return 0;
14458 }
14459
14460 /**
14461  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14462  * @phba: pointer to lpfc hba data structure.
14463  *
14464  * returns the number of ELS/CT + NVMET IOCBs to reserve
14465  **/
14466 int
14467 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14468 {
14469         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14470
14471         if (phba->nvmet_support)
14472                 max_xri += LPFC_NVMET_BUF_POST;
14473         return max_xri;
14474 }
14475
14476
14477 static int
14478 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14479         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14480         const struct firmware *fw)
14481 {
14482         int rc;
14483         u8 sli_family;
14484
14485         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14486         /* Three cases:  (1) FW was not supported on the detected adapter.
14487          * (2) FW update has been locked out administratively.
14488          * (3) Some other error during FW update.
14489          * In each case, an unmaskable message is written to the console
14490          * for admin diagnosis.
14491          */
14492         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14493             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14494              magic_number != MAGIC_NUMBER_G6) ||
14495             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14496              magic_number != MAGIC_NUMBER_G7) ||
14497             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14498              magic_number != MAGIC_NUMBER_G7P)) {
14499                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14500                                 "3030 This firmware version is not supported on"
14501                                 " this HBA model. Device:%x Magic:%x Type:%x "
14502                                 "ID:%x Size %d %zd\n",
14503                                 phba->pcidev->device, magic_number, ftype, fid,
14504                                 fsize, fw->size);
14505                 rc = -EINVAL;
14506         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14507                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14508                                 "3021 Firmware downloads have been prohibited "
14509                                 "by a system configuration setting on "
14510                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14511                                 "%zd\n",
14512                                 phba->pcidev->device, magic_number, ftype, fid,
14513                                 fsize, fw->size);
14514                 rc = -EACCES;
14515         } else {
14516                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14517                                 "3022 FW Download failed. Add Status x%x "
14518                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14519                                 "%zd\n",
14520                                 offset, phba->pcidev->device, magic_number,
14521                                 ftype, fid, fsize, fw->size);
14522                 rc = -EIO;
14523         }
14524         return rc;
14525 }
14526
14527 /**
14528  * lpfc_write_firmware - attempt to write a firmware image to the port
14529  * @fw: pointer to firmware image returned from request_firmware.
14530  * @context: pointer to firmware image returned from request_firmware.
14531  *
14532  **/
14533 static void
14534 lpfc_write_firmware(const struct firmware *fw, void *context)
14535 {
14536         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14537         char fwrev[FW_REV_STR_SIZE];
14538         struct lpfc_grp_hdr *image;
14539         struct list_head dma_buffer_list;
14540         int i, rc = 0;
14541         struct lpfc_dmabuf *dmabuf, *next;
14542         uint32_t offset = 0, temp_offset = 0;
14543         uint32_t magic_number, ftype, fid, fsize;
14544
14545         /* It can be null in no-wait mode, sanity check */
14546         if (!fw) {
14547                 rc = -ENXIO;
14548                 goto out;
14549         }
14550         image = (struct lpfc_grp_hdr *)fw->data;
14551
14552         magic_number = be32_to_cpu(image->magic_number);
14553         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14554         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14555         fsize = be32_to_cpu(image->size);
14556
14557         INIT_LIST_HEAD(&dma_buffer_list);
14558         lpfc_decode_firmware_rev(phba, fwrev, 1);
14559         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14560                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14561                                 "3023 Updating Firmware, Current Version:%s "
14562                                 "New Version:%s\n",
14563                                 fwrev, image->revision);
14564                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14565                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14566                                          GFP_KERNEL);
14567                         if (!dmabuf) {
14568                                 rc = -ENOMEM;
14569                                 goto release_out;
14570                         }
14571                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14572                                                           SLI4_PAGE_SIZE,
14573                                                           &dmabuf->phys,
14574                                                           GFP_KERNEL);
14575                         if (!dmabuf->virt) {
14576                                 kfree(dmabuf);
14577                                 rc = -ENOMEM;
14578                                 goto release_out;
14579                         }
14580                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14581                 }
14582                 while (offset < fw->size) {
14583                         temp_offset = offset;
14584                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14585                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14586                                         memcpy(dmabuf->virt,
14587                                                fw->data + temp_offset,
14588                                                fw->size - temp_offset);
14589                                         temp_offset = fw->size;
14590                                         break;
14591                                 }
14592                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14593                                        SLI4_PAGE_SIZE);
14594                                 temp_offset += SLI4_PAGE_SIZE;
14595                         }
14596                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14597                                     (fw->size - offset), &offset);
14598                         if (rc) {
14599                                 rc = lpfc_log_write_firmware_error(phba, offset,
14600                                                                    magic_number,
14601                                                                    ftype,
14602                                                                    fid,
14603                                                                    fsize,
14604                                                                    fw);
14605                                 goto release_out;
14606                         }
14607                 }
14608                 rc = offset;
14609         } else
14610                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14611                                 "3029 Skipped Firmware update, Current "
14612                                 "Version:%s New Version:%s\n",
14613                                 fwrev, image->revision);
14614
14615 release_out:
14616         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14617                 list_del(&dmabuf->list);
14618                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14619                                   dmabuf->virt, dmabuf->phys);
14620                 kfree(dmabuf);
14621         }
14622         release_firmware(fw);
14623 out:
14624         if (rc < 0)
14625                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14626                                 "3062 Firmware update error, status %d.\n", rc);
14627         else
14628                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14629                                 "3024 Firmware update success: size %d.\n", rc);
14630 }
14631
14632 /**
14633  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14634  * @phba: pointer to lpfc hba data structure.
14635  * @fw_upgrade: which firmware to update.
14636  *
14637  * This routine is called to perform Linux generic firmware upgrade on device
14638  * that supports such feature.
14639  **/
14640 int
14641 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14642 {
14643         uint8_t file_name[ELX_MODEL_NAME_SIZE];
14644         int ret;
14645         const struct firmware *fw;
14646
14647         /* Only supported on SLI4 interface type 2 for now */
14648         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14649             LPFC_SLI_INTF_IF_TYPE_2)
14650                 return -EPERM;
14651
14652         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14653
14654         if (fw_upgrade == INT_FW_UPGRADE) {
14655                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14656                                         file_name, &phba->pcidev->dev,
14657                                         GFP_KERNEL, (void *)phba,
14658                                         lpfc_write_firmware);
14659         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14660                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14661                 if (!ret)
14662                         lpfc_write_firmware(fw, (void *)phba);
14663         } else {
14664                 ret = -EINVAL;
14665         }
14666
14667         return ret;
14668 }
14669
14670 /**
14671  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14672  * @pdev: pointer to PCI device
14673  * @pid: pointer to PCI device identifier
14674  *
14675  * This routine is called from the kernel's PCI subsystem to device with
14676  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14677  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14678  * information of the device and driver to see if the driver state that it
14679  * can support this kind of device. If the match is successful, the driver
14680  * core invokes this routine. If this routine determines it can claim the HBA,
14681  * it does all the initialization that it needs to do to handle the HBA
14682  * properly.
14683  *
14684  * Return code
14685  *      0 - driver can claim the device
14686  *      negative value - driver can not claim the device
14687  **/
14688 static int
14689 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14690 {
14691         struct lpfc_hba   *phba;
14692         struct lpfc_vport *vport = NULL;
14693         struct Scsi_Host  *shost = NULL;
14694         int error;
14695         uint32_t cfg_mode, intr_mode;
14696
14697         /* Allocate memory for HBA structure */
14698         phba = lpfc_hba_alloc(pdev);
14699         if (!phba)
14700                 return -ENOMEM;
14701
14702         INIT_LIST_HEAD(&phba->poll_list);
14703
14704         /* Perform generic PCI device enabling operation */
14705         error = lpfc_enable_pci_dev(phba);
14706         if (error)
14707                 goto out_free_phba;
14708
14709         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14710         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14711         if (error)
14712                 goto out_disable_pci_dev;
14713
14714         /* Set up SLI-4 specific device PCI memory space */
14715         error = lpfc_sli4_pci_mem_setup(phba);
14716         if (error) {
14717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14718                                 "1410 Failed to set up pci memory space.\n");
14719                 goto out_disable_pci_dev;
14720         }
14721
14722         /* Set up SLI-4 Specific device driver resources */
14723         error = lpfc_sli4_driver_resource_setup(phba);
14724         if (error) {
14725                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14726                                 "1412 Failed to set up driver resource.\n");
14727                 goto out_unset_pci_mem_s4;
14728         }
14729
14730         INIT_LIST_HEAD(&phba->active_rrq_list);
14731         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14732
14733         /* Set up common device driver resources */
14734         error = lpfc_setup_driver_resource_phase2(phba);
14735         if (error) {
14736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14737                                 "1414 Failed to set up driver resource.\n");
14738                 goto out_unset_driver_resource_s4;
14739         }
14740
14741         /* Get the default values for Model Name and Description */
14742         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14743
14744         /* Now, trying to enable interrupt and bring up the device */
14745         cfg_mode = phba->cfg_use_msi;
14746
14747         /* Put device to a known state before enabling interrupt */
14748         phba->pport = NULL;
14749         lpfc_stop_port(phba);
14750
14751         /* Init cpu_map array */
14752         lpfc_cpu_map_array_init(phba);
14753
14754         /* Init hba_eq_hdl array */
14755         lpfc_hba_eq_hdl_array_init(phba);
14756
14757         /* Configure and enable interrupt */
14758         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14759         if (intr_mode == LPFC_INTR_ERROR) {
14760                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14761                                 "0426 Failed to enable interrupt.\n");
14762                 error = -ENODEV;
14763                 goto out_unset_driver_resource;
14764         }
14765         /* Default to single EQ for non-MSI-X */
14766         if (phba->intr_type != MSIX) {
14767                 phba->cfg_irq_chann = 1;
14768                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14769                         if (phba->nvmet_support)
14770                                 phba->cfg_nvmet_mrq = 1;
14771                 }
14772         }
14773         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14774
14775         /* Create SCSI host to the physical port */
14776         error = lpfc_create_shost(phba);
14777         if (error) {
14778                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14779                                 "1415 Failed to create scsi host.\n");
14780                 goto out_disable_intr;
14781         }
14782         vport = phba->pport;
14783         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14784
14785         /* Configure sysfs attributes */
14786         error = lpfc_alloc_sysfs_attr(vport);
14787         if (error) {
14788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14789                                 "1416 Failed to allocate sysfs attr\n");
14790                 goto out_destroy_shost;
14791         }
14792
14793         /* Set up SLI-4 HBA */
14794         if (lpfc_sli4_hba_setup(phba)) {
14795                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14796                                 "1421 Failed to set up hba\n");
14797                 error = -ENODEV;
14798                 goto out_free_sysfs_attr;
14799         }
14800
14801         /* Log the current active interrupt mode */
14802         phba->intr_mode = intr_mode;
14803         lpfc_log_intr_mode(phba, intr_mode);
14804
14805         /* Perform post initialization setup */
14806         lpfc_post_init_setup(phba);
14807
14808         /* NVME support in FW earlier in the driver load corrects the
14809          * FC4 type making a check for nvme_support unnecessary.
14810          */
14811         if (phba->nvmet_support == 0) {
14812                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14813                         /* Create NVME binding with nvme_fc_transport. This
14814                          * ensures the vport is initialized.  If the localport
14815                          * create fails, it should not unload the driver to
14816                          * support field issues.
14817                          */
14818                         error = lpfc_nvme_create_localport(vport);
14819                         if (error) {
14820                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14821                                                 "6004 NVME registration "
14822                                                 "failed, error x%x\n",
14823                                                 error);
14824                         }
14825                 }
14826         }
14827
14828         /* check for firmware upgrade or downgrade */
14829         if (phba->cfg_request_firmware_upgrade)
14830                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14831
14832         /* Check if there are static vports to be created. */
14833         lpfc_create_static_vport(phba);
14834
14835         /* Enable RAS FW log support */
14836         lpfc_sli4_ras_setup(phba);
14837
14838         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14839         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14840
14841         return 0;
14842
14843 out_free_sysfs_attr:
14844         lpfc_free_sysfs_attr(vport);
14845 out_destroy_shost:
14846         lpfc_destroy_shost(phba);
14847 out_disable_intr:
14848         lpfc_sli4_disable_intr(phba);
14849 out_unset_driver_resource:
14850         lpfc_unset_driver_resource_phase2(phba);
14851 out_unset_driver_resource_s4:
14852         lpfc_sli4_driver_resource_unset(phba);
14853 out_unset_pci_mem_s4:
14854         lpfc_sli4_pci_mem_unset(phba);
14855 out_disable_pci_dev:
14856         lpfc_disable_pci_dev(phba);
14857         if (shost)
14858                 scsi_host_put(shost);
14859 out_free_phba:
14860         lpfc_hba_free(phba);
14861         return error;
14862 }
14863
14864 /**
14865  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14866  * @pdev: pointer to PCI device
14867  *
14868  * This routine is called from the kernel's PCI subsystem to device with
14869  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14870  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14871  * device to be removed from the PCI subsystem properly.
14872  **/
14873 static void
14874 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14875 {
14876         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14877         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14878         struct lpfc_vport **vports;
14879         struct lpfc_hba *phba = vport->phba;
14880         int i;
14881
14882         /* Mark the device unloading flag */
14883         spin_lock_irq(&phba->hbalock);
14884         vport->load_flag |= FC_UNLOADING;
14885         spin_unlock_irq(&phba->hbalock);
14886         if (phba->cgn_i)
14887                 lpfc_unreg_congestion_buf(phba);
14888
14889         lpfc_free_sysfs_attr(vport);
14890
14891         /* Release all the vports against this physical port */
14892         vports = lpfc_create_vport_work_array(phba);
14893         if (vports != NULL)
14894                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14895                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14896                                 continue;
14897                         fc_vport_terminate(vports[i]->fc_vport);
14898                 }
14899         lpfc_destroy_vport_work_array(phba, vports);
14900
14901         /* Remove FC host with the physical port */
14902         fc_remove_host(shost);
14903         scsi_remove_host(shost);
14904
14905         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14906          * localports are destroyed after to cleanup all transport memory.
14907          */
14908         lpfc_cleanup(vport);
14909         lpfc_nvmet_destroy_targetport(phba);
14910         lpfc_nvme_destroy_localport(vport);
14911
14912         /* De-allocate multi-XRI pools */
14913         if (phba->cfg_xri_rebalancing)
14914                 lpfc_destroy_multixri_pools(phba);
14915
14916         /*
14917          * Bring down the SLI Layer. This step disables all interrupts,
14918          * clears the rings, discards all mailbox commands, and resets
14919          * the HBA FCoE function.
14920          */
14921         lpfc_debugfs_terminate(vport);
14922
14923         lpfc_stop_hba_timers(phba);
14924         spin_lock_irq(&phba->port_list_lock);
14925         list_del_init(&vport->listentry);
14926         spin_unlock_irq(&phba->port_list_lock);
14927
14928         /* Perform scsi free before driver resource_unset since scsi
14929          * buffers are released to their corresponding pools here.
14930          */
14931         lpfc_io_free(phba);
14932         lpfc_free_iocb_list(phba);
14933         lpfc_sli4_hba_unset(phba);
14934
14935         lpfc_unset_driver_resource_phase2(phba);
14936         lpfc_sli4_driver_resource_unset(phba);
14937
14938         /* Unmap adapter Control and Doorbell registers */
14939         lpfc_sli4_pci_mem_unset(phba);
14940
14941         /* Release PCI resources and disable device's PCI function */
14942         scsi_host_put(shost);
14943         lpfc_disable_pci_dev(phba);
14944
14945         /* Finally, free the driver's device data structure */
14946         lpfc_hba_free(phba);
14947
14948         return;
14949 }
14950
14951 /**
14952  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14953  * @dev_d: pointer to device
14954  *
14955  * This routine is called from the kernel's PCI subsystem to support system
14956  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14957  * this method, it quiesces the device by stopping the driver's worker
14958  * thread for the device, turning off device's interrupt and DMA, and bring
14959  * the device offline. Note that as the driver implements the minimum PM
14960  * requirements to a power-aware driver's PM support for suspend/resume -- all
14961  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14962  * method call will be treated as SUSPEND and the driver will fully
14963  * reinitialize its device during resume() method call, the driver will set
14964  * device to PCI_D3hot state in PCI config space instead of setting it
14965  * according to the @msg provided by the PM.
14966  *
14967  * Return code
14968  *      0 - driver suspended the device
14969  *      Error otherwise
14970  **/
14971 static int __maybe_unused
14972 lpfc_pci_suspend_one_s4(struct device *dev_d)
14973 {
14974         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14975         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14976
14977         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14978                         "2843 PCI device Power Management suspend.\n");
14979
14980         /* Bring down the device */
14981         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14982         lpfc_offline(phba);
14983         kthread_stop(phba->worker_thread);
14984
14985         /* Disable interrupt from device */
14986         lpfc_sli4_disable_intr(phba);
14987         lpfc_sli4_queue_destroy(phba);
14988
14989         return 0;
14990 }
14991
14992 /**
14993  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14994  * @dev_d: pointer to device
14995  *
14996  * This routine is called from the kernel's PCI subsystem to support system
14997  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14998  * this method, it restores the device's PCI config space state and fully
14999  * reinitializes the device and brings it online. Note that as the driver
15000  * implements the minimum PM requirements to a power-aware driver's PM for
15001  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
15002  * to the suspend() method call will be treated as SUSPEND and the driver
15003  * will fully reinitialize its device during resume() method call, the device
15004  * will be set to PCI_D0 directly in PCI config space before restoring the
15005  * state.
15006  *
15007  * Return code
15008  *      0 - driver suspended the device
15009  *      Error otherwise
15010  **/
15011 static int __maybe_unused
15012 lpfc_pci_resume_one_s4(struct device *dev_d)
15013 {
15014         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
15015         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15016         uint32_t intr_mode;
15017         int error;
15018
15019         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15020                         "0292 PCI device Power Management resume.\n");
15021
15022          /* Startup the kernel thread for this host adapter. */
15023         phba->worker_thread = kthread_run(lpfc_do_work, phba,
15024                                         "lpfc_worker_%d", phba->brd_no);
15025         if (IS_ERR(phba->worker_thread)) {
15026                 error = PTR_ERR(phba->worker_thread);
15027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15028                                 "0293 PM resume failed to start worker "
15029                                 "thread: error=x%x.\n", error);
15030                 return error;
15031         }
15032
15033         /* Configure and enable interrupt */
15034         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15035         if (intr_mode == LPFC_INTR_ERROR) {
15036                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15037                                 "0294 PM resume Failed to enable interrupt\n");
15038                 return -EIO;
15039         } else
15040                 phba->intr_mode = intr_mode;
15041
15042         /* Restart HBA and bring it online */
15043         lpfc_sli_brdrestart(phba);
15044         lpfc_online(phba);
15045
15046         /* Log the current active interrupt mode */
15047         lpfc_log_intr_mode(phba, phba->intr_mode);
15048
15049         return 0;
15050 }
15051
15052 /**
15053  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15054  * @phba: pointer to lpfc hba data structure.
15055  *
15056  * This routine is called to prepare the SLI4 device for PCI slot recover. It
15057  * aborts all the outstanding SCSI I/Os to the pci device.
15058  **/
15059 static void
15060 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15061 {
15062         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15063                         "2828 PCI channel I/O abort preparing for recovery\n");
15064         /*
15065          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15066          * and let the SCSI mid-layer to retry them to recover.
15067          */
15068         lpfc_sli_abort_fcp_rings(phba);
15069 }
15070
15071 /**
15072  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15073  * @phba: pointer to lpfc hba data structure.
15074  *
15075  * This routine is called to prepare the SLI4 device for PCI slot reset. It
15076  * disables the device interrupt and pci device, and aborts the internal FCP
15077  * pending I/Os.
15078  **/
15079 static void
15080 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15081 {
15082         int offline =  pci_channel_offline(phba->pcidev);
15083
15084         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15085                         "2826 PCI channel disable preparing for reset offline"
15086                         " %d\n", offline);
15087
15088         /* Block any management I/Os to the device */
15089         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15090
15091
15092         /* HBA_PCI_ERR was set in io_error_detect */
15093         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
15094         /* Flush all driver's outstanding I/Os as we are to reset */
15095         lpfc_sli_flush_io_rings(phba);
15096         lpfc_offline(phba);
15097
15098         /* stop all timers */
15099         lpfc_stop_hba_timers(phba);
15100
15101         lpfc_sli4_queue_destroy(phba);
15102         /* Disable interrupt and pci device */
15103         lpfc_sli4_disable_intr(phba);
15104         pci_disable_device(phba->pcidev);
15105 }
15106
15107 /**
15108  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15109  * @phba: pointer to lpfc hba data structure.
15110  *
15111  * This routine is called to prepare the SLI4 device for PCI slot permanently
15112  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15113  * pending I/Os.
15114  **/
15115 static void
15116 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15117 {
15118         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15119                         "2827 PCI channel permanent disable for failure\n");
15120
15121         /* Block all SCSI devices' I/Os on the host */
15122         lpfc_scsi_dev_block(phba);
15123
15124         /* stop all timers */
15125         lpfc_stop_hba_timers(phba);
15126
15127         /* Clean up all driver's outstanding I/Os */
15128         lpfc_sli_flush_io_rings(phba);
15129 }
15130
15131 /**
15132  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15133  * @pdev: pointer to PCI device.
15134  * @state: the current PCI connection state.
15135  *
15136  * This routine is called from the PCI subsystem for error handling to device
15137  * with SLI-4 interface spec. This function is called by the PCI subsystem
15138  * after a PCI bus error affecting this device has been detected. When this
15139  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15140  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15141  * for the PCI subsystem to perform proper recovery as desired.
15142  *
15143  * Return codes
15144  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15145  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15146  **/
15147 static pci_ers_result_t
15148 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15149 {
15150         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15151         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15152         bool hba_pci_err;
15153
15154         switch (state) {
15155         case pci_channel_io_normal:
15156                 /* Non-fatal error, prepare for recovery */
15157                 lpfc_sli4_prep_dev_for_recover(phba);
15158                 return PCI_ERS_RESULT_CAN_RECOVER;
15159         case pci_channel_io_frozen:
15160                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15161                 /* Fatal error, prepare for slot reset */
15162                 if (!hba_pci_err)
15163                         lpfc_sli4_prep_dev_for_reset(phba);
15164                 else
15165                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15166                                         "2832  Already handling PCI error "
15167                                         "state: x%x\n", state);
15168                 return PCI_ERS_RESULT_NEED_RESET;
15169         case pci_channel_io_perm_failure:
15170                 set_bit(HBA_PCI_ERR, &phba->bit_flags);
15171                 /* Permanent failure, prepare for device down */
15172                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15173                 return PCI_ERS_RESULT_DISCONNECT;
15174         default:
15175                 hba_pci_err = test_and_set_bit(HBA_PCI_ERR, &phba->bit_flags);
15176                 if (!hba_pci_err)
15177                         lpfc_sli4_prep_dev_for_reset(phba);
15178                 /* Unknown state, prepare and request slot reset */
15179                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15180                                 "2825 Unknown PCI error state: x%x\n", state);
15181                 lpfc_sli4_prep_dev_for_reset(phba);
15182                 return PCI_ERS_RESULT_NEED_RESET;
15183         }
15184 }
15185
15186 /**
15187  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15188  * @pdev: pointer to PCI device.
15189  *
15190  * This routine is called from the PCI subsystem for error handling to device
15191  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15192  * restart the PCI card from scratch, as if from a cold-boot. During the
15193  * PCI subsystem error recovery, after the driver returns
15194  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15195  * recovery and then call this routine before calling the .resume method to
15196  * recover the device. This function will initialize the HBA device, enable
15197  * the interrupt, but it will just put the HBA to offline state without
15198  * passing any I/O traffic.
15199  *
15200  * Return codes
15201  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15202  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15203  */
15204 static pci_ers_result_t
15205 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15206 {
15207         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15208         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15209         struct lpfc_sli *psli = &phba->sli;
15210         uint32_t intr_mode;
15211         bool hba_pci_err;
15212
15213         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15214         if (pci_enable_device_mem(pdev)) {
15215                 printk(KERN_ERR "lpfc: Cannot re-enable "
15216                        "PCI device after reset.\n");
15217                 return PCI_ERS_RESULT_DISCONNECT;
15218         }
15219
15220         pci_restore_state(pdev);
15221
15222         hba_pci_err = test_and_clear_bit(HBA_PCI_ERR, &phba->bit_flags);
15223         if (!hba_pci_err)
15224                 dev_info(&pdev->dev,
15225                          "hba_pci_err was not set, recovering slot reset.\n");
15226         /*
15227          * As the new kernel behavior of pci_restore_state() API call clears
15228          * device saved_state flag, need to save the restored state again.
15229          */
15230         pci_save_state(pdev);
15231
15232         if (pdev->is_busmaster)
15233                 pci_set_master(pdev);
15234
15235         spin_lock_irq(&phba->hbalock);
15236         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15237         spin_unlock_irq(&phba->hbalock);
15238
15239         /* Init cpu_map array */
15240         lpfc_cpu_map_array_init(phba);
15241         /* Configure and enable interrupt */
15242         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15243         if (intr_mode == LPFC_INTR_ERROR) {
15244                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15245                                 "2824 Cannot re-enable interrupt after "
15246                                 "slot reset.\n");
15247                 return PCI_ERS_RESULT_DISCONNECT;
15248         } else
15249                 phba->intr_mode = intr_mode;
15250         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15251
15252         /* Log the current active interrupt mode */
15253         lpfc_log_intr_mode(phba, phba->intr_mode);
15254
15255         return PCI_ERS_RESULT_RECOVERED;
15256 }
15257
15258 /**
15259  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15260  * @pdev: pointer to PCI device
15261  *
15262  * This routine is called from the PCI subsystem for error handling to device
15263  * with SLI-4 interface spec. It is called when kernel error recovery tells
15264  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15265  * error recovery. After this call, traffic can start to flow from this device
15266  * again.
15267  **/
15268 static void
15269 lpfc_io_resume_s4(struct pci_dev *pdev)
15270 {
15271         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15272         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15273
15274         /*
15275          * In case of slot reset, as function reset is performed through
15276          * mailbox command which needs DMA to be enabled, this operation
15277          * has to be moved to the io resume phase. Taking device offline
15278          * will perform the necessary cleanup.
15279          */
15280         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15281                 /* Perform device reset */
15282                 lpfc_sli_brdrestart(phba);
15283                 /* Bring the device back online */
15284                 lpfc_online(phba);
15285         }
15286 }
15287
15288 /**
15289  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15290  * @pdev: pointer to PCI device
15291  * @pid: pointer to PCI device identifier
15292  *
15293  * This routine is to be registered to the kernel's PCI subsystem. When an
15294  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15295  * at PCI device-specific information of the device and driver to see if the
15296  * driver state that it can support this kind of device. If the match is
15297  * successful, the driver core invokes this routine. This routine dispatches
15298  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15299  * do all the initialization that it needs to do to handle the HBA device
15300  * properly.
15301  *
15302  * Return code
15303  *      0 - driver can claim the device
15304  *      negative value - driver can not claim the device
15305  **/
15306 static int
15307 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15308 {
15309         int rc;
15310         struct lpfc_sli_intf intf;
15311
15312         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15313                 return -ENODEV;
15314
15315         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15316             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15317                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15318         else
15319                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15320
15321         return rc;
15322 }
15323
15324 /**
15325  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15326  * @pdev: pointer to PCI device
15327  *
15328  * This routine is to be registered to the kernel's PCI subsystem. When an
15329  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15330  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15331  * remove routine, which will perform all the necessary cleanup for the
15332  * device to be removed from the PCI subsystem properly.
15333  **/
15334 static void
15335 lpfc_pci_remove_one(struct pci_dev *pdev)
15336 {
15337         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15338         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15339
15340         switch (phba->pci_dev_grp) {
15341         case LPFC_PCI_DEV_LP:
15342                 lpfc_pci_remove_one_s3(pdev);
15343                 break;
15344         case LPFC_PCI_DEV_OC:
15345                 lpfc_pci_remove_one_s4(pdev);
15346                 break;
15347         default:
15348                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15349                                 "1424 Invalid PCI device group: 0x%x\n",
15350                                 phba->pci_dev_grp);
15351                 break;
15352         }
15353         return;
15354 }
15355
15356 /**
15357  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15358  * @dev: pointer to device
15359  *
15360  * This routine is to be registered to the kernel's PCI subsystem to support
15361  * system Power Management (PM). When PM invokes this method, it dispatches
15362  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15363  * suspend the device.
15364  *
15365  * Return code
15366  *      0 - driver suspended the device
15367  *      Error otherwise
15368  **/
15369 static int __maybe_unused
15370 lpfc_pci_suspend_one(struct device *dev)
15371 {
15372         struct Scsi_Host *shost = dev_get_drvdata(dev);
15373         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15374         int rc = -ENODEV;
15375
15376         switch (phba->pci_dev_grp) {
15377         case LPFC_PCI_DEV_LP:
15378                 rc = lpfc_pci_suspend_one_s3(dev);
15379                 break;
15380         case LPFC_PCI_DEV_OC:
15381                 rc = lpfc_pci_suspend_one_s4(dev);
15382                 break;
15383         default:
15384                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15385                                 "1425 Invalid PCI device group: 0x%x\n",
15386                                 phba->pci_dev_grp);
15387                 break;
15388         }
15389         return rc;
15390 }
15391
15392 /**
15393  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15394  * @dev: pointer to device
15395  *
15396  * This routine is to be registered to the kernel's PCI subsystem to support
15397  * system Power Management (PM). When PM invokes this method, it dispatches
15398  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15399  * resume the device.
15400  *
15401  * Return code
15402  *      0 - driver suspended the device
15403  *      Error otherwise
15404  **/
15405 static int __maybe_unused
15406 lpfc_pci_resume_one(struct device *dev)
15407 {
15408         struct Scsi_Host *shost = dev_get_drvdata(dev);
15409         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15410         int rc = -ENODEV;
15411
15412         switch (phba->pci_dev_grp) {
15413         case LPFC_PCI_DEV_LP:
15414                 rc = lpfc_pci_resume_one_s3(dev);
15415                 break;
15416         case LPFC_PCI_DEV_OC:
15417                 rc = lpfc_pci_resume_one_s4(dev);
15418                 break;
15419         default:
15420                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15421                                 "1426 Invalid PCI device group: 0x%x\n",
15422                                 phba->pci_dev_grp);
15423                 break;
15424         }
15425         return rc;
15426 }
15427
15428 /**
15429  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15430  * @pdev: pointer to PCI device.
15431  * @state: the current PCI connection state.
15432  *
15433  * This routine is registered to the PCI subsystem for error handling. This
15434  * function is called by the PCI subsystem after a PCI bus error affecting
15435  * this device has been detected. When this routine is invoked, it dispatches
15436  * the action to the proper SLI-3 or SLI-4 device error detected handling
15437  * routine, which will perform the proper error detected operation.
15438  *
15439  * Return codes
15440  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15441  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15442  **/
15443 static pci_ers_result_t
15444 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15445 {
15446         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15447         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15448         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15449
15450         if (phba->link_state == LPFC_HBA_ERROR &&
15451             phba->hba_flag & HBA_IOQ_FLUSH)
15452                 return PCI_ERS_RESULT_NEED_RESET;
15453
15454         switch (phba->pci_dev_grp) {
15455         case LPFC_PCI_DEV_LP:
15456                 rc = lpfc_io_error_detected_s3(pdev, state);
15457                 break;
15458         case LPFC_PCI_DEV_OC:
15459                 rc = lpfc_io_error_detected_s4(pdev, state);
15460                 break;
15461         default:
15462                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15463                                 "1427 Invalid PCI device group: 0x%x\n",
15464                                 phba->pci_dev_grp);
15465                 break;
15466         }
15467         return rc;
15468 }
15469
15470 /**
15471  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15472  * @pdev: pointer to PCI device.
15473  *
15474  * This routine is registered to the PCI subsystem for error handling. This
15475  * function is called after PCI bus has been reset to restart the PCI card
15476  * from scratch, as if from a cold-boot. When this routine is invoked, it
15477  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15478  * routine, which will perform the proper device reset.
15479  *
15480  * Return codes
15481  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15482  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15483  **/
15484 static pci_ers_result_t
15485 lpfc_io_slot_reset(struct pci_dev *pdev)
15486 {
15487         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15488         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15489         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15490
15491         switch (phba->pci_dev_grp) {
15492         case LPFC_PCI_DEV_LP:
15493                 rc = lpfc_io_slot_reset_s3(pdev);
15494                 break;
15495         case LPFC_PCI_DEV_OC:
15496                 rc = lpfc_io_slot_reset_s4(pdev);
15497                 break;
15498         default:
15499                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15500                                 "1428 Invalid PCI device group: 0x%x\n",
15501                                 phba->pci_dev_grp);
15502                 break;
15503         }
15504         return rc;
15505 }
15506
15507 /**
15508  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15509  * @pdev: pointer to PCI device
15510  *
15511  * This routine is registered to the PCI subsystem for error handling. It
15512  * is called when kernel error recovery tells the lpfc driver that it is
15513  * OK to resume normal PCI operation after PCI bus error recovery. When
15514  * this routine is invoked, it dispatches the action to the proper SLI-3
15515  * or SLI-4 device io_resume routine, which will resume the device operation.
15516  **/
15517 static void
15518 lpfc_io_resume(struct pci_dev *pdev)
15519 {
15520         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15521         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15522
15523         switch (phba->pci_dev_grp) {
15524         case LPFC_PCI_DEV_LP:
15525                 lpfc_io_resume_s3(pdev);
15526                 break;
15527         case LPFC_PCI_DEV_OC:
15528                 lpfc_io_resume_s4(pdev);
15529                 break;
15530         default:
15531                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15532                                 "1429 Invalid PCI device group: 0x%x\n",
15533                                 phba->pci_dev_grp);
15534                 break;
15535         }
15536         return;
15537 }
15538
15539 /**
15540  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15541  * @phba: pointer to lpfc hba data structure.
15542  *
15543  * This routine checks to see if OAS is supported for this adapter. If
15544  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15545  * the enable oas flag is cleared and the pool created for OAS device data
15546  * is destroyed.
15547  *
15548  **/
15549 static void
15550 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15551 {
15552
15553         if (!phba->cfg_EnableXLane)
15554                 return;
15555
15556         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15557                 phba->cfg_fof = 1;
15558         } else {
15559                 phba->cfg_fof = 0;
15560                 mempool_destroy(phba->device_data_mem_pool);
15561                 phba->device_data_mem_pool = NULL;
15562         }
15563
15564         return;
15565 }
15566
15567 /**
15568  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15569  * @phba: pointer to lpfc hba data structure.
15570  *
15571  * This routine checks to see if RAS is supported by the adapter. Check the
15572  * function through which RAS support enablement is to be done.
15573  **/
15574 void
15575 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15576 {
15577         /* if ASIC_GEN_NUM >= 0xC) */
15578         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15579                     LPFC_SLI_INTF_IF_TYPE_6) ||
15580             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15581                     LPFC_SLI_INTF_FAMILY_G6)) {
15582                 phba->ras_fwlog.ras_hwsupport = true;
15583                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15584                     phba->cfg_ras_fwlog_buffsize)
15585                         phba->ras_fwlog.ras_enabled = true;
15586                 else
15587                         phba->ras_fwlog.ras_enabled = false;
15588         } else {
15589                 phba->ras_fwlog.ras_hwsupport = false;
15590         }
15591 }
15592
15593
15594 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15595
15596 static const struct pci_error_handlers lpfc_err_handler = {
15597         .error_detected = lpfc_io_error_detected,
15598         .slot_reset = lpfc_io_slot_reset,
15599         .resume = lpfc_io_resume,
15600 };
15601
15602 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15603                          lpfc_pci_suspend_one,
15604                          lpfc_pci_resume_one);
15605
15606 static struct pci_driver lpfc_driver = {
15607         .name           = LPFC_DRIVER_NAME,
15608         .id_table       = lpfc_id_table,
15609         .probe          = lpfc_pci_probe_one,
15610         .remove         = lpfc_pci_remove_one,
15611         .shutdown       = lpfc_pci_remove_one,
15612         .driver.pm      = &lpfc_pci_pm_ops_one,
15613         .err_handler    = &lpfc_err_handler,
15614 };
15615
15616 static const struct file_operations lpfc_mgmt_fop = {
15617         .owner = THIS_MODULE,
15618 };
15619
15620 static struct miscdevice lpfc_mgmt_dev = {
15621         .minor = MISC_DYNAMIC_MINOR,
15622         .name = "lpfcmgmt",
15623         .fops = &lpfc_mgmt_fop,
15624 };
15625
15626 /**
15627  * lpfc_init - lpfc module initialization routine
15628  *
15629  * This routine is to be invoked when the lpfc module is loaded into the
15630  * kernel. The special kernel macro module_init() is used to indicate the
15631  * role of this routine to the kernel as lpfc module entry point.
15632  *
15633  * Return codes
15634  *   0 - successful
15635  *   -ENOMEM - FC attach transport failed
15636  *   all others - failed
15637  */
15638 static int __init
15639 lpfc_init(void)
15640 {
15641         int error = 0;
15642
15643         pr_info(LPFC_MODULE_DESC "\n");
15644         pr_info(LPFC_COPYRIGHT "\n");
15645
15646         error = misc_register(&lpfc_mgmt_dev);
15647         if (error)
15648                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15649                         "misc_register returned with status %d", error);
15650
15651         error = -ENOMEM;
15652         lpfc_transport_functions.vport_create = lpfc_vport_create;
15653         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15654         lpfc_transport_template =
15655                                 fc_attach_transport(&lpfc_transport_functions);
15656         if (lpfc_transport_template == NULL)
15657                 goto unregister;
15658         lpfc_vport_transport_template =
15659                 fc_attach_transport(&lpfc_vport_transport_functions);
15660         if (lpfc_vport_transport_template == NULL) {
15661                 fc_release_transport(lpfc_transport_template);
15662                 goto unregister;
15663         }
15664         lpfc_wqe_cmd_template();
15665         lpfc_nvmet_cmd_template();
15666
15667         /* Initialize in case vector mapping is needed */
15668         lpfc_present_cpu = num_present_cpus();
15669
15670         lpfc_pldv_detect = false;
15671
15672         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15673                                         "lpfc/sli4:online",
15674                                         lpfc_cpu_online, lpfc_cpu_offline);
15675         if (error < 0)
15676                 goto cpuhp_failure;
15677         lpfc_cpuhp_state = error;
15678
15679         error = pci_register_driver(&lpfc_driver);
15680         if (error)
15681                 goto unwind;
15682
15683         return error;
15684
15685 unwind:
15686         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15687 cpuhp_failure:
15688         fc_release_transport(lpfc_transport_template);
15689         fc_release_transport(lpfc_vport_transport_template);
15690 unregister:
15691         misc_deregister(&lpfc_mgmt_dev);
15692
15693         return error;
15694 }
15695
15696 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15697 {
15698         unsigned int start_idx;
15699         unsigned int dbg_cnt;
15700         unsigned int temp_idx;
15701         int i;
15702         int j = 0;
15703         unsigned long rem_nsec, iflags;
15704         bool log_verbose = false;
15705         struct lpfc_vport *port_iterator;
15706
15707         /* Don't dump messages if we explicitly set log_verbose for the
15708          * physical port or any vport.
15709          */
15710         if (phba->cfg_log_verbose)
15711                 return;
15712
15713         spin_lock_irqsave(&phba->port_list_lock, iflags);
15714         list_for_each_entry(port_iterator, &phba->port_list, listentry) {
15715                 if (port_iterator->load_flag & FC_UNLOADING)
15716                         continue;
15717                 if (scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
15718                         if (port_iterator->cfg_log_verbose)
15719                                 log_verbose = true;
15720
15721                         scsi_host_put(lpfc_shost_from_vport(port_iterator));
15722
15723                         if (log_verbose) {
15724                                 spin_unlock_irqrestore(&phba->port_list_lock,
15725                                                        iflags);
15726                                 return;
15727                         }
15728                 }
15729         }
15730         spin_unlock_irqrestore(&phba->port_list_lock, iflags);
15731
15732         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15733                 return;
15734
15735         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15736         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15737         if (!dbg_cnt)
15738                 goto out;
15739         temp_idx = start_idx;
15740         if (dbg_cnt >= DBG_LOG_SZ) {
15741                 dbg_cnt = DBG_LOG_SZ;
15742                 temp_idx -= 1;
15743         } else {
15744                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15745                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15746                 } else {
15747                         if (start_idx < dbg_cnt)
15748                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15749                         else
15750                                 start_idx -= dbg_cnt;
15751                 }
15752         }
15753         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15754                  start_idx, temp_idx, dbg_cnt);
15755
15756         for (i = 0; i < dbg_cnt; i++) {
15757                 if ((start_idx + i) < DBG_LOG_SZ)
15758                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15759                 else
15760                         temp_idx = j++;
15761                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15762                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15763                          temp_idx,
15764                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15765                          rem_nsec / 1000,
15766                          phba->dbg_log[temp_idx].log);
15767         }
15768 out:
15769         atomic_set(&phba->dbg_log_cnt, 0);
15770         atomic_set(&phba->dbg_log_dmping, 0);
15771 }
15772
15773 __printf(2, 3)
15774 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15775 {
15776         unsigned int idx;
15777         va_list args;
15778         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15779         struct va_format vaf;
15780
15781
15782         va_start(args, fmt);
15783         if (unlikely(dbg_dmping)) {
15784                 vaf.fmt = fmt;
15785                 vaf.va = &args;
15786                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15787                 va_end(args);
15788                 return;
15789         }
15790         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15791                 DBG_LOG_SZ;
15792
15793         atomic_inc(&phba->dbg_log_cnt);
15794
15795         vscnprintf(phba->dbg_log[idx].log,
15796                    sizeof(phba->dbg_log[idx].log), fmt, args);
15797         va_end(args);
15798
15799         phba->dbg_log[idx].t_ns = local_clock();
15800 }
15801
15802 /**
15803  * lpfc_exit - lpfc module removal routine
15804  *
15805  * This routine is invoked when the lpfc module is removed from the kernel.
15806  * The special kernel macro module_exit() is used to indicate the role of
15807  * this routine to the kernel as lpfc module exit point.
15808  */
15809 static void __exit
15810 lpfc_exit(void)
15811 {
15812         misc_deregister(&lpfc_mgmt_dev);
15813         pci_unregister_driver(&lpfc_driver);
15814         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15815         fc_release_transport(lpfc_transport_template);
15816         fc_release_transport(lpfc_vport_transport_template);
15817         idr_destroy(&lpfc_hba_index);
15818 }
15819
15820 module_init(lpfc_init);
15821 module_exit(lpfc_exit);
15822 MODULE_LICENSE("GPL");
15823 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15824 MODULE_AUTHOR("Broadcom");
15825 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);