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) 2017-2020 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 <linux/nvme-fc-driver.h>
  54
  55 #include "lpfc_hw4.h"
  56 #include "lpfc_hw.h"
  57 #include "lpfc_sli.h"
  58 #include "lpfc_sli4.h"
  59 #include "lpfc_nl.h"
  60 #include "lpfc_disc.h"
  61 #include "lpfc.h"
  62 #include "lpfc_scsi.h"
  63 #include "lpfc_nvme.h"
  64 #include "lpfc_nvmet.h"
  65 #include "lpfc_logmsg.h"
  66 #include "lpfc_crtn.h"
  67 #include "lpfc_vport.h"
  68 #include "lpfc_version.h"
  69 #include "lpfc_ids.h"
  70
  71 static enum cpuhp_state lpfc_cpuhp_state;
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 static uint32_t lpfc_present_cpu;
  74
  75 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  76 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  77 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  78 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  79 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  80 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  81 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  82 static int lpfc_setup_endian_order(struct lpfc_hba *);
  83 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  84 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  85 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  86 static void lpfc_init_sgl_list(struct lpfc_hba *);
  87 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  88 static void lpfc_free_active_sgl(struct lpfc_hba *);
  89 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  90 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  91 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  93 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  94 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  95 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  96 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  98 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  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
 105 /**
 106  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 107  * @phba: pointer to lpfc hba data structure.
 108  *
 109  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 110  * mailbox command. It retrieves the revision information from the HBA and
 111  * collects the Vital Product Data (VPD) about the HBA for preparing the
 112  * configuration of the HBA.
 113  *
 114  * Return codes:
 115  *   0 - success.
 116  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 117  *   Any other value - indicates an error.
 118  **/
 119 int
 120 lpfc_config_port_prep(struct lpfc_hba *phba)
 121 {
 122         lpfc_vpd_t *vp = &phba->vpd;
 123         int i = 0, rc;
 124         LPFC_MBOXQ_t *pmb;
 125         MAILBOX_t *mb;
 126         char *lpfc_vpd_data = NULL;
 127         uint16_t offset = 0;
 128         static char licensed[56] =
 129                     "key unlock for use with gnu public licensed code only\0";
 130         static int init_key = 1;
 131
 132         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 133         if (!pmb) {
 134                 phba->link_state = LPFC_HBA_ERROR;
 135                 return -ENOMEM;
 136         }
 137
 138         mb = &pmb->u.mb;
 139         phba->link_state = LPFC_INIT_MBX_CMDS;
 140
 141         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 142                 if (init_key) {
 143                         uint32_t *ptext = (uint32_t *) licensed;
 144
 145                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 146                                 *ptext = cpu_to_be32(*ptext);
 147                         init_key = 0;
 148                 }
 149
 150                 lpfc_read_nv(phba, pmb);
 151                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 152                         sizeof (mb->un.varRDnvp.rsvd3));
 153                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 154                          sizeof (licensed));
 155
 156                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 157
 158                 if (rc != MBX_SUCCESS) {
 159                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 160                                         "0324 Config Port initialization "
 161                                         "error, mbxCmd x%x READ_NVPARM, "
 162                                         "mbxStatus x%x\n",
 163                                         mb->mbxCommand, mb->mbxStatus);
 164                         mempool_free(pmb, phba->mbox_mem_pool);
 165                         return -ERESTART;
 166                 }
 167                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 168                        sizeof(phba->wwnn));
 169                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 170                        sizeof(phba->wwpn));
 171         }
 172
 173         /*
 174          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 175          * which was already set in lpfc_get_cfgparam()
 176          */
 177         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 178
 179         /* Setup and issue mailbox READ REV command */
 180         lpfc_read_rev(phba, pmb);
 181         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 182         if (rc != MBX_SUCCESS) {
 183                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 184                                 "0439 Adapter failed to init, mbxCmd x%x "
 185                                 "READ_REV, mbxStatus x%x\n",
 186                                 mb->mbxCommand, mb->mbxStatus);
 187                 mempool_free( pmb, phba->mbox_mem_pool);
 188                 return -ERESTART;
 189         }
 190
 191
 192         /*
 193          * The value of rr must be 1 since the driver set the cv field to 1.
 194          * This setting requires the FW to set all revision fields.
 195          */
 196         if (mb->un.varRdRev.rr == 0) {
 197                 vp->rev.rBit = 0;
 198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 199                                 "0440 Adapter failed to init, READ_REV has "
 200                                 "missing revision information.\n");
 201                 mempool_free(pmb, phba->mbox_mem_pool);
 202                 return -ERESTART;
 203         }
 204
 205         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 206                 mempool_free(pmb, phba->mbox_mem_pool);
 207                 return -EINVAL;
 208         }
 209
 210         /* Save information as VPD data */
 211         vp->rev.rBit = 1;
 212         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 213         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 214         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 215         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 216         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 217         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 218         vp->rev.smRev = mb->un.varRdRev.smRev;
 219         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 220         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 221         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 222         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 223         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 224         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 225         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 226         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 227
 228         /* If the sli feature level is less then 9, we must
 229          * tear down all RPIs and VPIs on link down if NPIV
 230          * is enabled.
 231          */
 232         if (vp->rev.feaLevelHigh < 9)
 233                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 234
 235         if (lpfc_is_LC_HBA(phba->pcidev->device))
 236                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 237                                                 sizeof (phba->RandomData));
 238
 239         /* Get adapter VPD information */
 240         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 241         if (!lpfc_vpd_data)
 242                 goto out_free_mbox;
 243         do {
 244                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 245                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 246
 247                 if (rc != MBX_SUCCESS) {
 248                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 249                                         "0441 VPD not present on adapter, "
 250                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 251                                         mb->mbxCommand, mb->mbxStatus);
 252                         mb->un.varDmp.word_cnt = 0;
 253                 }
 254                 /* dump mem may return a zero when finished or we got a
 255                  * mailbox error, either way we are done.
 256                  */
 257                 if (mb->un.varDmp.word_cnt == 0)
 258                         break;
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 267
 268         kfree(lpfc_vpd_data);
 269 out_free_mbox:
 270         mempool_free(pmb, phba->mbox_mem_pool);
 271         return 0;
 272 }
 273
 274 /**
 275  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for driver's configuring asynchronous event
 280  * mailbox command to the device. If the mailbox command returns successfully,
 281  * it will set internal async event support flag to 1; otherwise, it will
 282  * set internal async event support flag to 0.
 283  **/
 284 static void
 285 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 286 {
 287         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 288                 phba->temp_sensor_support = 1;
 289         else
 290                 phba->temp_sensor_support = 0;
 291         mempool_free(pmboxq, phba->mbox_mem_pool);
 292         return;
 293 }
 294
 295 /**
 296  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 297  * @phba: pointer to lpfc hba data structure.
 298  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 299  *
 300  * This is the completion handler for dump mailbox command for getting
 301  * wake up parameters. When this command complete, the response contain
 302  * Option rom version of the HBA. This function translate the version number
 303  * into a human readable string and store it in OptionROMVersion.
 304  **/
 305 static void
 306 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 307 {
 308         struct prog_id *prg;
 309         uint32_t prog_id_word;
 310         char dist = ' ';
 311         /* character array used for decoding dist type. */
 312         char dist_char[] = "nabx";
 313
 314         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 315                 mempool_free(pmboxq, phba->mbox_mem_pool);
 316                 return;
 317         }
 318
 319         prg = (struct prog_id *) &prog_id_word;
 320
 321         /* word 7 contain option rom version */
 322         prog_id_word = pmboxq->u.mb.un.varWords[7];
 323
 324         /* Decode the Option rom version word to a readable string */
 325         if (prg->dist < 4)
 326                 dist = dist_char[prg->dist];
 327
 328         if ((prg->dist == 3) && (prg->num == 0))
 329                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 330                         prg->ver, prg->rev, prg->lev);
 331         else
 332                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 333                         prg->ver, prg->rev, prg->lev,
 334                         dist, prg->num);
 335         mempool_free(pmboxq, phba->mbox_mem_pool);
 336         return;
 337 }
 338
 339 /**
 340  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 341  *      cfg_soft_wwnn, cfg_soft_wwpn
 342  * @vport: pointer to lpfc vport data structure.
 343  *
 344  *
 345  * Return codes
 346  *   None.
 347  **/
 348 void
 349 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 350 {
 351         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 352         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 353
 354         /* If the soft name exists then update it using the service params */
 355         if (vport->phba->cfg_soft_wwnn)
 356                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 357                            vport->fc_sparam.nodeName.u.wwn);
 358         if (vport->phba->cfg_soft_wwpn)
 359                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 360                            vport->fc_sparam.portName.u.wwn);
 361
 362         /*
 363          * If the name is empty or there exists a soft name
 364          * then copy the service params name, otherwise use the fc name
 365          */
 366         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 367                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 368                         sizeof(struct lpfc_name));
 369         else
 370                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 371                         sizeof(struct lpfc_name));
 372
 373         /*
 374          * If the port name has changed, then set the Param changes flag
 375          * to unreg the login
 376          */
 377         if (vport->fc_portname.u.wwn[0] != 0 &&
 378                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name)))
 380                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 381
 382         if (vport->fc_portname.u.wwn[0] == 0 ||
 383             vport->phba->cfg_soft_wwpn ||
 384             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 385             vport->vport_flag & FAWWPN_SET) {
 386                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 387                         sizeof(struct lpfc_name));
 388                 vport->vport_flag &= ~FAWWPN_SET;
 389                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 390                         vport->vport_flag |= FAWWPN_SET;
 391         }
 392         else
 393                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 394                         sizeof(struct lpfc_name));
 395 }
 396
 397 /**
 398  * lpfc_config_port_post - Perform lpfc initialization after config port
 399  * @phba: pointer to lpfc hba data structure.
 400  *
 401  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 402  * command call. It performs all internal resource and state setups on the
 403  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 404  * ELS ring timers, etc.
 405  *
 406  * Return codes
 407  *   0 - success.
 408  *   Any other value - error.
 409  **/
 410 int
 411 lpfc_config_port_post(struct lpfc_hba *phba)
 412 {
 413         struct lpfc_vport *vport = phba->pport;
 414         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 415         LPFC_MBOXQ_t *pmb;
 416         MAILBOX_t *mb;
 417         struct lpfc_dmabuf *mp;
 418         struct lpfc_sli *psli = &phba->sli;
 419         uint32_t status, timeout;
 420         int i, j;
 421         int rc;
 422
 423         spin_lock_irq(&phba->hbalock);
 424         /*
 425          * If the Config port completed correctly the HBA is not
 426          * over heated any more.
 427          */
 428         if (phba->over_temp_state == HBA_OVER_TEMP)
 429                 phba->over_temp_state = HBA_NORMAL_TEMP;
 430         spin_unlock_irq(&phba->hbalock);
 431
 432         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 433         if (!pmb) {
 434                 phba->link_state = LPFC_HBA_ERROR;
 435                 return -ENOMEM;
 436         }
 437         mb = &pmb->u.mb;
 438
 439         /* Get login parameters for NID.  */
 440         rc = lpfc_read_sparam(phba, pmb, 0);
 441         if (rc) {
 442                 mempool_free(pmb, phba->mbox_mem_pool);
 443                 return -ENOMEM;
 444         }
 445
 446         pmb->vport = vport;
 447         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 449                                 "0448 Adapter failed init, mbxCmd x%x "
 450                                 "READ_SPARM mbxStatus x%x\n",
 451                                 mb->mbxCommand, mb->mbxStatus);
 452                 phba->link_state = LPFC_HBA_ERROR;
 453                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 454                 mempool_free(pmb, phba->mbox_mem_pool);
 455                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456                 kfree(mp);
 457                 return -EIO;
 458         }
 459
 460         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 461
 462         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 463         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 464         kfree(mp);
 465         pmb->ctx_buf = NULL;
 466         lpfc_update_vport_wwn(vport);
 467
 468         /* Update the fc_host data structures with new wwn. */
 469         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 470         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 471         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 472
 473         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 474         /* This should be consolidated into parse_vpd ? - mr */
 475         if (phba->SerialNumber[0] == 0) {
 476                 uint8_t *outptr;
 477
 478                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 479                 for (i = 0; i < 12; i++) {
 480                         status = *outptr++;
 481                         j = ((status & 0xf0) >> 4);
 482                         if (j <= 9)
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 485                         else
 486                                 phba->SerialNumber[i] =
 487                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 488                         i++;
 489                         j = (status & 0xf);
 490                         if (j <= 9)
 491                                 phba->SerialNumber[i] =
 492                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 493                         else
 494                                 phba->SerialNumber[i] =
 495                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 496                 }
 497         }
 498
 499         lpfc_read_config(phba, pmb);
 500         pmb->vport = vport;
 501         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 502                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 503                                 "0453 Adapter failed to init, mbxCmd x%x "
 504                                 "READ_CONFIG, mbxStatus x%x\n",
 505                                 mb->mbxCommand, mb->mbxStatus);
 506                 phba->link_state = LPFC_HBA_ERROR;
 507                 mempool_free( pmb, phba->mbox_mem_pool);
 508                 return -EIO;
 509         }
 510
 511         /* Check if the port is disabled */
 512         lpfc_sli_read_link_ste(phba);
 513
 514         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 515         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 516                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 517                                 "3359 HBA queue depth changed from %d to %d\n",
 518                                 phba->cfg_hba_queue_depth,
 519                                 mb->un.varRdConfig.max_xri);
 520                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 521         }
 522
 523         phba->lmt = mb->un.varRdConfig.lmt;
 524
 525         /* Get the default values for Model Name and Description */
 526         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 527
 528         phba->link_state = LPFC_LINK_DOWN;
 529
 530         /* Only process IOCBs on ELS ring till hba_state is READY */
 531         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 532                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 533         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535
 536         /* Post receive buffers for desired rings */
 537         if (phba->sli_rev != 3)
 538                 lpfc_post_rcv_buf(phba);
 539
 540         /*
 541          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 542          */
 543         if (phba->intr_type == MSIX) {
 544                 rc = lpfc_config_msi(phba, pmb);
 545                 if (rc) {
 546                         mempool_free(pmb, phba->mbox_mem_pool);
 547                         return -EIO;
 548                 }
 549                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 550                 if (rc != MBX_SUCCESS) {
 551                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 552                                         "0352 Config MSI mailbox command "
 553                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 554                                         pmb->u.mb.mbxCommand,
 555                                         pmb->u.mb.mbxStatus);
 556                         mempool_free(pmb, phba->mbox_mem_pool);
 557                         return -EIO;
 558                 }
 559         }
 560
 561         spin_lock_irq(&phba->hbalock);
 562         /* Initialize ERATT handling flag */
 563         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 564
 565         /* Enable appropriate host interrupts */
 566         if (lpfc_readl(phba->HCregaddr, &status)) {
 567                 spin_unlock_irq(&phba->hbalock);
 568                 return -EIO;
 569         }
 570         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 571         if (psli->num_rings > 0)
 572                 status |= HC_R0INT_ENA;
 573         if (psli->num_rings > 1)
 574                 status |= HC_R1INT_ENA;
 575         if (psli->num_rings > 2)
 576                 status |= HC_R2INT_ENA;
 577         if (psli->num_rings > 3)
 578                 status |= HC_R3INT_ENA;
 579
 580         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 581             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 582                 status &= ~(HC_R0INT_ENA);
 583
 584         writel(status, phba->HCregaddr);
 585         readl(phba->HCregaddr); /* flush */
 586         spin_unlock_irq(&phba->hbalock);
 587
 588         /* Set up ring-0 (ELS) timer */
 589         timeout = phba->fc_ratov * 2;
 590         mod_timer(&vport->els_tmofunc,
 591                   jiffies + msecs_to_jiffies(1000 * timeout));
 592         /* Set up heart beat (HB) timer */
 593         mod_timer(&phba->hb_tmofunc,
 594                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 595         phba->hb_outstanding = 0;
 596         phba->last_completion_time = jiffies;
 597         /* Set up error attention (ERATT) polling timer */
 598         mod_timer(&phba->eratt_poll,
 599                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 600
 601         if (phba->hba_flag & LINK_DISABLED) {
 602                 lpfc_printf_log(phba,
 603                         KERN_ERR, LOG_INIT,
 604                         "2598 Adapter Link is disabled.\n");
 605                 lpfc_down_link(phba, pmb);
 606                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 607                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 608                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 609                         lpfc_printf_log(phba,
 610                         KERN_ERR, LOG_INIT,
 611                         "2599 Adapter failed to issue DOWN_LINK"
 612                         " mbox command rc 0x%x\n", rc);
 613
 614                         mempool_free(pmb, phba->mbox_mem_pool);
 615                         return -EIO;
 616                 }
 617         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 618                 mempool_free(pmb, phba->mbox_mem_pool);
 619                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 620                 if (rc)
 621                         return rc;
 622         }
 623         /* MBOX buffer will be freed in mbox compl */
 624         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 625         if (!pmb) {
 626                 phba->link_state = LPFC_HBA_ERROR;
 627                 return -ENOMEM;
 628         }
 629
 630         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 631         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 632         pmb->vport = phba->pport;
 633         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 634
 635         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 636                 lpfc_printf_log(phba,
 637                                 KERN_ERR,
 638                                 LOG_INIT,
 639                                 "0456 Adapter failed to issue "
 640                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 641                                 rc);
 642                 mempool_free(pmb, phba->mbox_mem_pool);
 643         }
 644
 645         /* Get Option rom version */
 646         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 647         if (!pmb) {
 648                 phba->link_state = LPFC_HBA_ERROR;
 649                 return -ENOMEM;
 650         }
 651
 652         lpfc_dump_wakeup_param(phba, pmb);
 653         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 654         pmb->vport = phba->pport;
 655         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 656
 657         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 658                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 659                                 "to get Option ROM version status x%x\n", rc);
 660                 mempool_free(pmb, phba->mbox_mem_pool);
 661         }
 662
 663         return 0;
 664 }
 665
 666 /**
 667  * lpfc_hba_init_link - Initialize the FC link
 668  * @phba: pointer to lpfc hba data structure.
 669  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 670  *
 671  * This routine will issue the INIT_LINK mailbox command call.
 672  * It is available to other drivers through the lpfc_hba data
 673  * structure for use as a delayed link up mechanism with the
 674  * module parameter lpfc_suppress_link_up.
 675  *
 676  * Return code
 677  *              0 - success
 678  *              Any other value - error
 679  **/
 680 static int
 681 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 682 {
 683         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 684 }
 685
 686 /**
 687  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 688  * @phba: pointer to lpfc hba data structure.
 689  * @fc_topology: desired fc topology.
 690  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 691  *
 692  * This routine will issue the INIT_LINK mailbox command call.
 693  * It is available to other drivers through the lpfc_hba data
 694  * structure for use as a delayed link up mechanism with the
 695  * module parameter lpfc_suppress_link_up.
 696  *
 697  * Return code
 698  *              0 - success
 699  *              Any other value - error
 700  **/
 701 int
 702 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 703                                uint32_t flag)
 704 {
 705         struct lpfc_vport *vport = phba->pport;
 706         LPFC_MBOXQ_t *pmb;
 707         MAILBOX_t *mb;
 708         int rc;
 709
 710         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 711         if (!pmb) {
 712                 phba->link_state = LPFC_HBA_ERROR;
 713                 return -ENOMEM;
 714         }
 715         mb = &pmb->u.mb;
 716         pmb->vport = vport;
 717
 718         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 720              !(phba->lmt & LMT_1Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 722              !(phba->lmt & LMT_2Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 724              !(phba->lmt & LMT_4Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 726              !(phba->lmt & LMT_8Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 728              !(phba->lmt & LMT_10Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 730              !(phba->lmt & LMT_16Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 732              !(phba->lmt & LMT_32Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 734              !(phba->lmt & LMT_64Gb))) {
 735                 /* Reset link speed to auto */
 736                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 737                         "1302 Invalid speed for this board:%d "
 738                         "Reset link speed to auto.\n",
 739                         phba->cfg_link_speed);
 740                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 741         }
 742         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 743         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 744         if (phba->sli_rev < LPFC_SLI_REV4)
 745                 lpfc_set_loopback_flag(phba);
 746         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 747         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 749                         "0498 Adapter failed to init, mbxCmd x%x "
 750                         "INIT_LINK, mbxStatus x%x\n",
 751                         mb->mbxCommand, mb->mbxStatus);
 752                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 753                         /* Clear all interrupt enable conditions */
 754                         writel(0, phba->HCregaddr);
 755                         readl(phba->HCregaddr); /* flush */
 756                         /* Clear all pending interrupts */
 757                         writel(0xffffffff, phba->HAregaddr);
 758                         readl(phba->HAregaddr); /* flush */
 759                 }
 760                 phba->link_state = LPFC_HBA_ERROR;
 761                 if (rc != MBX_BUSY || flag == MBX_POLL)
 762                         mempool_free(pmb, phba->mbox_mem_pool);
 763                 return -EIO;
 764         }
 765         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 766         if (flag == MBX_POLL)
 767                 mempool_free(pmb, phba->mbox_mem_pool);
 768
 769         return 0;
 770 }
 771
 772 /**
 773  * lpfc_hba_down_link - this routine downs the FC link
 774  * @phba: pointer to lpfc hba data structure.
 775  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 776  *
 777  * This routine will issue the DOWN_LINK mailbox command call.
 778  * It is available to other drivers through the lpfc_hba data
 779  * structure for use to stop the link.
 780  *
 781  * Return code
 782  *              0 - success
 783  *              Any other value - error
 784  **/
 785 static int
 786 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 787 {
 788         LPFC_MBOXQ_t *pmb;
 789         int rc;
 790
 791         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 792         if (!pmb) {
 793                 phba->link_state = LPFC_HBA_ERROR;
 794                 return -ENOMEM;
 795         }
 796
 797         lpfc_printf_log(phba,
 798                 KERN_ERR, LOG_INIT,
 799                 "0491 Adapter Link is disabled.\n");
 800         lpfc_down_link(phba, pmb);
 801         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 802         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 803         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 804                 lpfc_printf_log(phba,
 805                 KERN_ERR, LOG_INIT,
 806                 "2522 Adapter failed to issue DOWN_LINK"
 807                 " mbox command rc 0x%x\n", rc);
 808
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810                 return -EIO;
 811         }
 812         if (flag == MBX_POLL)
 813                 mempool_free(pmb, phba->mbox_mem_pool);
 814
 815         return 0;
 816 }
 817
 818 /**
 819  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 820  * @phba: pointer to lpfc HBA data structure.
 821  *
 822  * This routine will do LPFC uninitialization before the HBA is reset when
 823  * bringing down the SLI Layer.
 824  *
 825  * Return codes
 826  *   0 - success.
 827  *   Any other value - error.
 828  **/
 829 int
 830 lpfc_hba_down_prep(struct lpfc_hba *phba)
 831 {
 832         struct lpfc_vport **vports;
 833         int i;
 834
 835         if (phba->sli_rev <= LPFC_SLI_REV3) {
 836                 /* Disable interrupts */
 837                 writel(0, phba->HCregaddr);
 838                 readl(phba->HCregaddr); /* flush */
 839         }
 840
 841         if (phba->pport->load_flag & FC_UNLOADING)
 842                 lpfc_cleanup_discovery_resources(phba->pport);
 843         else {
 844                 vports = lpfc_create_vport_work_array(phba);
 845                 if (vports != NULL)
 846                         for (i = 0; i <= phba->max_vports &&
 847                                 vports[i] != NULL; i++)
 848                                 lpfc_cleanup_discovery_resources(vports[i]);
 849                 lpfc_destroy_vport_work_array(phba, vports);
 850         }
 851         return 0;
 852 }
 853
 854 /**
 855  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 856  * rspiocb which got deferred
 857  *
 858  * @phba: pointer to lpfc HBA data structure.
 859  *
 860  * This routine will cleanup completed slow path events after HBA is reset
 861  * when bringing down the SLI Layer.
 862  *
 863  *
 864  * Return codes
 865  *   void.
 866  **/
 867 static void
 868 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 869 {
 870         struct lpfc_iocbq *rspiocbq;
 871         struct hbq_dmabuf *dmabuf;
 872         struct lpfc_cq_event *cq_event;
 873
 874         spin_lock_irq(&phba->hbalock);
 875         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 876         spin_unlock_irq(&phba->hbalock);
 877
 878         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 879                 /* Get the response iocb from the head of work queue */
 880                 spin_lock_irq(&phba->hbalock);
 881                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 882                                  cq_event, struct lpfc_cq_event, list);
 883                 spin_unlock_irq(&phba->hbalock);
 884
 885                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 886                 case CQE_CODE_COMPL_WQE:
 887                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 888                                                  cq_event);
 889                         lpfc_sli_release_iocbq(phba, rspiocbq);
 890                         break;
 891                 case CQE_CODE_RECEIVE:
 892                 case CQE_CODE_RECEIVE_V1:
 893                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 894                                               cq_event);
 895                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 896                 }
 897         }
 898 }
 899
 900 /**
 901  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 902  * @phba: pointer to lpfc HBA data structure.
 903  *
 904  * This routine will cleanup posted ELS buffers after the HBA is reset
 905  * when bringing down the SLI Layer.
 906  *
 907  *
 908  * Return codes
 909  *   void.
 910  **/
 911 static void
 912 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 913 {
 914         struct lpfc_sli *psli = &phba->sli;
 915         struct lpfc_sli_ring *pring;
 916         struct lpfc_dmabuf *mp, *next_mp;
 917         LIST_HEAD(buflist);
 918         int count;
 919
 920         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 921                 lpfc_sli_hbqbuf_free_all(phba);
 922         else {
 923                 /* Cleanup preposted buffers on the ELS ring */
 924                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 925                 spin_lock_irq(&phba->hbalock);
 926                 list_splice_init(&pring->postbufq, &buflist);
 927                 spin_unlock_irq(&phba->hbalock);
 928
 929                 count = 0;
 930                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 931                         list_del(&mp->list);
 932                         count++;
 933                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 934                         kfree(mp);
 935                 }
 936
 937                 spin_lock_irq(&phba->hbalock);
 938                 pring->postbufq_cnt -= count;
 939                 spin_unlock_irq(&phba->hbalock);
 940         }
 941 }
 942
 943 /**
 944  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 945  * @phba: pointer to lpfc HBA data structure.
 946  *
 947  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 948  * down the SLI Layer.
 949  *
 950  * Return codes
 951  *   void
 952  **/
 953 static void
 954 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 955 {
 956         struct lpfc_sli *psli = &phba->sli;
 957         struct lpfc_queue *qp = NULL;
 958         struct lpfc_sli_ring *pring;
 959         LIST_HEAD(completions);
 960         int i;
 961         struct lpfc_iocbq *piocb, *next_iocb;
 962
 963         if (phba->sli_rev != LPFC_SLI_REV4) {
 964                 for (i = 0; i < psli->num_rings; i++) {
 965                         pring = &psli->sli3_ring[i];
 966                         spin_lock_irq(&phba->hbalock);
 967                         /* At this point in time the HBA is either reset or DOA
 968                          * Nothing should be on txcmplq as it will
 969                          * NEVER complete.
 970                          */
 971                         list_splice_init(&pring->txcmplq, &completions);
 972                         pring->txcmplq_cnt = 0;
 973                         spin_unlock_irq(&phba->hbalock);
 974
 975                         lpfc_sli_abort_iocb_ring(phba, pring);
 976                 }
 977                 /* Cancel all the IOCBs from the completions list */
 978                 lpfc_sli_cancel_iocbs(phba, &completions,
 979                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 980                 return;
 981         }
 982         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 983                 pring = qp->pring;
 984                 if (!pring)
 985                         continue;
 986                 spin_lock_irq(&pring->ring_lock);
 987                 list_for_each_entry_safe(piocb, next_iocb,
 988                                          &pring->txcmplq, list)
 989                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 990                 list_splice_init(&pring->txcmplq, &completions);
 991                 pring->txcmplq_cnt = 0;
 992                 spin_unlock_irq(&pring->ring_lock);
 993                 lpfc_sli_abort_iocb_ring(phba, pring);
 994         }
 995         /* Cancel all the IOCBs from the completions list */
 996         lpfc_sli_cancel_iocbs(phba, &completions,
 997                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 998 }
 999
1000 /**
1001  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1002         int i;
1003  * @phba: pointer to lpfc HBA data structure.
1004  *
1005  * This routine will do uninitialization after the HBA is reset when bring
1006  * down the SLI Layer.
1007  *
1008  * Return codes
1009  *   0 - success.
1010  *   Any other value - error.
1011  **/
1012 static int
1013 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1014 {
1015         lpfc_hba_free_post_buf(phba);
1016         lpfc_hba_clean_txcmplq(phba);
1017         return 0;
1018 }
1019
1020 /**
1021  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1022  * @phba: pointer to lpfc HBA data structure.
1023  *
1024  * This routine will do uninitialization after the HBA is reset when bring
1025  * down the SLI Layer.
1026  *
1027  * Return codes
1028  *   0 - success.
1029  *   Any other value - error.
1030  **/
1031 static int
1032 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1033 {
1034         struct lpfc_io_buf *psb, *psb_next;
1035         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1036         struct lpfc_sli4_hdw_queue *qp;
1037         LIST_HEAD(aborts);
1038         LIST_HEAD(nvme_aborts);
1039         LIST_HEAD(nvmet_aborts);
1040         struct lpfc_sglq *sglq_entry = NULL;
1041         int cnt, idx;
1042
1043
1044         lpfc_sli_hbqbuf_free_all(phba);
1045         lpfc_hba_clean_txcmplq(phba);
1046
1047         /* At this point in time the HBA is either reset or DOA. Either
1048          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1049          * on the lpfc_els_sgl_list so that it can either be freed if the
1050          * driver is unloading or reposted if the driver is restarting
1051          * the port.
1052          */
1053         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1054                                         /* scsl_buf_list */
1055         /* sgl_list_lock required because worker thread uses this
1056          * list.
1057          */
1058         spin_lock(&phba->sli4_hba.sgl_list_lock);
1059         list_for_each_entry(sglq_entry,
1060                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1061                 sglq_entry->state = SGL_FREED;
1062
1063         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1064                         &phba->sli4_hba.lpfc_els_sgl_list);
1065
1066
1067         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1068
1069         /* abts_xxxx_buf_list_lock required because worker thread uses this
1070          * list.
1071          */
1072         cnt = 0;
1073         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1074                 qp = &phba->sli4_hba.hdwq[idx];
1075
1076                 spin_lock(&qp->abts_io_buf_list_lock);
1077                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1078                                  &aborts);
1079
1080                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1081                         psb->pCmd = NULL;
1082                         psb->status = IOSTAT_SUCCESS;
1083                         cnt++;
1084                 }
1085                 spin_lock(&qp->io_buf_list_put_lock);
1086                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1087                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1088                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1089                 qp->abts_scsi_io_bufs = 0;
1090                 qp->abts_nvme_io_bufs = 0;
1091                 spin_unlock(&qp->io_buf_list_put_lock);
1092                 spin_unlock(&qp->abts_io_buf_list_lock);
1093         }
1094         spin_unlock_irq(&phba->hbalock);
1095
1096         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1097                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1098                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1099                                  &nvmet_aborts);
1100                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1101                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1102                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1103                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1104                 }
1105         }
1106
1107         lpfc_sli4_free_sp_events(phba);
1108         return cnt;
1109 }
1110
1111 /**
1112  * lpfc_hba_down_post - Wrapper func for hba down post routine
1113  * @phba: pointer to lpfc HBA data structure.
1114  *
1115  * This routine wraps the actual SLI3 or SLI4 routine for performing
1116  * uninitialization after the HBA is reset when bring down the SLI Layer.
1117  *
1118  * Return codes
1119  *   0 - success.
1120  *   Any other value - error.
1121  **/
1122 int
1123 lpfc_hba_down_post(struct lpfc_hba *phba)
1124 {
1125         return (*phba->lpfc_hba_down_post)(phba);
1126 }
1127
1128 /**
1129  * lpfc_hb_timeout - The HBA-timer timeout handler
1130  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1131  *
1132  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1133  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1134  * work-port-events bitmap and the worker thread is notified. This timeout
1135  * event will be used by the worker thread to invoke the actual timeout
1136  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1137  * be performed in the timeout handler and the HBA timeout event bit shall
1138  * be cleared by the worker thread after it has taken the event bitmap out.
1139  **/
1140 static void
1141 lpfc_hb_timeout(struct timer_list *t)
1142 {
1143         struct lpfc_hba *phba;
1144         uint32_t tmo_posted;
1145         unsigned long iflag;
1146
1147         phba = from_timer(phba, t, hb_tmofunc);
1148
1149         /* Check for heart beat timeout conditions */
1150         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1151         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1152         if (!tmo_posted)
1153                 phba->pport->work_port_events |= WORKER_HB_TMO;
1154         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1155
1156         /* Tell the worker thread there is work to do */
1157         if (!tmo_posted)
1158                 lpfc_worker_wake_up(phba);
1159         return;
1160 }
1161
1162 /**
1163  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1164  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1165  *
1166  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1167  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1168  * work-port-events bitmap and the worker thread is notified. This timeout
1169  * event will be used by the worker thread to invoke the actual timeout
1170  * handler routine, lpfc_rrq_handler. Any periodical operations will
1171  * be performed in the timeout handler and the RRQ timeout event bit shall
1172  * be cleared by the worker thread after it has taken the event bitmap out.
1173  **/
1174 static void
1175 lpfc_rrq_timeout(struct timer_list *t)
1176 {
1177         struct lpfc_hba *phba;
1178         unsigned long iflag;
1179
1180         phba = from_timer(phba, t, rrq_tmr);
1181         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1182         if (!(phba->pport->load_flag & FC_UNLOADING))
1183                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1184         else
1185                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1186         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1187
1188         if (!(phba->pport->load_flag & FC_UNLOADING))
1189                 lpfc_worker_wake_up(phba);
1190 }
1191
1192 /**
1193  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1194  * @phba: pointer to lpfc hba data structure.
1195  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1196  *
1197  * This is the callback function to the lpfc heart-beat mailbox command.
1198  * If configured, the lpfc driver issues the heart-beat mailbox command to
1199  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1200  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1201  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1202  * heart-beat outstanding state. Once the mailbox command comes back and
1203  * no error conditions detected, the heart-beat mailbox command timer is
1204  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1205  * state is cleared for the next heart-beat. If the timer expired with the
1206  * heart-beat outstanding state set, the driver will put the HBA offline.
1207  **/
1208 static void
1209 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1210 {
1211         unsigned long drvr_flag;
1212
1213         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1214         phba->hb_outstanding = 0;
1215         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1216
1217         /* Check and reset heart-beat timer is necessary */
1218         mempool_free(pmboxq, phba->mbox_mem_pool);
1219         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1220                 !(phba->link_state == LPFC_HBA_ERROR) &&
1221                 !(phba->pport->load_flag & FC_UNLOADING))
1222                 mod_timer(&phba->hb_tmofunc,
1223                           jiffies +
1224                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1225         return;
1226 }
1227
1228 static void
1229 lpfc_hb_eq_delay_work(struct work_struct *work)
1230 {
1231         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1232                                              struct lpfc_hba, eq_delay_work);
1233         struct lpfc_eq_intr_info *eqi, *eqi_new;
1234         struct lpfc_queue *eq, *eq_next;
1235         unsigned char *ena_delay = NULL;
1236         uint32_t usdelay;
1237         int i;
1238
1239         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1240                 return;
1241
1242         if (phba->link_state == LPFC_HBA_ERROR ||
1243             phba->pport->fc_flag & FC_OFFLINE_MODE)
1244                 goto requeue;
1245
1246         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1247                             GFP_KERNEL);
1248         if (!ena_delay)
1249                 goto requeue;
1250
1251         for (i = 0; i < phba->cfg_irq_chann; i++) {
1252                 /* Get the EQ corresponding to the IRQ vector */
1253                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1254                 if (!eq)
1255                         continue;
1256                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1257                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1258                         ena_delay[eq->last_cpu] = 1;
1259                 }
1260         }
1261
1262         for_each_present_cpu(i) {
1263                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1264                 if (ena_delay[i]) {
1265                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1266                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1267                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1268                 } else {
1269                         usdelay = 0;
1270                 }
1271
1272                 eqi->icnt = 0;
1273
1274                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1275                         if (unlikely(eq->last_cpu != i)) {
1276                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1277                                                       eq->last_cpu);
1278                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1279                                 continue;
1280                         }
1281                         if (usdelay != eq->q_mode)
1282                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1283                                                          usdelay);
1284                 }
1285         }
1286
1287         kfree(ena_delay);
1288
1289 requeue:
1290         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1291                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1292 }
1293
1294 /**
1295  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * For each heartbeat, this routine does some heuristic methods to adjust
1299  * XRI distribution. The goal is to fully utilize free XRIs.
1300  **/
1301 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1302 {
1303         u32 i;
1304         u32 hwq_count;
1305
1306         hwq_count = phba->cfg_hdw_queue;
1307         for (i = 0; i < hwq_count; i++) {
1308                 /* Adjust XRIs in private pool */
1309                 lpfc_adjust_pvt_pool_count(phba, i);
1310
1311                 /* Adjust high watermark */
1312                 lpfc_adjust_high_watermark(phba, i);
1313
1314 #ifdef LPFC_MXP_STAT
1315                 /* Snapshot pbl, pvt and busy count */
1316                 lpfc_snapshot_mxp(phba, i);
1317 #endif
1318         }
1319 }
1320
1321 /**
1322  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1323  * @phba: pointer to lpfc hba data structure.
1324  *
1325  * This is the actual HBA-timer timeout handler to be invoked by the worker
1326  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1327  * handler performs any periodic operations needed for the device. If such
1328  * periodic event has already been attended to either in the interrupt handler
1329  * or by processing slow-ring or fast-ring events within the HBA-timer
1330  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1331  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1332  * is configured and there is no heart-beat mailbox command outstanding, a
1333  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1334  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1335  * to offline.
1336  **/
1337 void
1338 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1339 {
1340         struct lpfc_vport **vports;
1341         LPFC_MBOXQ_t *pmboxq;
1342         struct lpfc_dmabuf *buf_ptr;
1343         int retval, i;
1344         struct lpfc_sli *psli = &phba->sli;
1345         LIST_HEAD(completions);
1346
1347         if (phba->cfg_xri_rebalancing) {
1348                 /* Multi-XRI pools handler */
1349                 lpfc_hb_mxp_handler(phba);
1350         }
1351
1352         vports = lpfc_create_vport_work_array(phba);
1353         if (vports != NULL)
1354                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1355                         lpfc_rcv_seq_check_edtov(vports[i]);
1356                         lpfc_fdmi_change_check(vports[i]);
1357                 }
1358         lpfc_destroy_vport_work_array(phba, vports);
1359
1360         if ((phba->link_state == LPFC_HBA_ERROR) ||
1361                 (phba->pport->load_flag & FC_UNLOADING) ||
1362                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1363                 return;
1364
1365         spin_lock_irq(&phba->pport->work_port_lock);
1366
1367         if (time_after(phba->last_completion_time +
1368                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1369                         jiffies)) {
1370                 spin_unlock_irq(&phba->pport->work_port_lock);
1371                 if (!phba->hb_outstanding)
1372                         mod_timer(&phba->hb_tmofunc,
1373                                 jiffies +
1374                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1375                 else
1376                         mod_timer(&phba->hb_tmofunc,
1377                                 jiffies +
1378                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1379                 return;
1380         }
1381         spin_unlock_irq(&phba->pport->work_port_lock);
1382
1383         if (phba->elsbuf_cnt &&
1384                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1385                 spin_lock_irq(&phba->hbalock);
1386                 list_splice_init(&phba->elsbuf, &completions);
1387                 phba->elsbuf_cnt = 0;
1388                 phba->elsbuf_prev_cnt = 0;
1389                 spin_unlock_irq(&phba->hbalock);
1390
1391                 while (!list_empty(&completions)) {
1392                         list_remove_head(&completions, buf_ptr,
1393                                 struct lpfc_dmabuf, list);
1394                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1395                         kfree(buf_ptr);
1396                 }
1397         }
1398         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1399
1400         /* If there is no heart beat outstanding, issue a heartbeat command */
1401         if (phba->cfg_enable_hba_heartbeat) {
1402                 if (!phba->hb_outstanding) {
1403                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1404                                 (list_empty(&psli->mboxq))) {
1405                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1406                                                         GFP_KERNEL);
1407                                 if (!pmboxq) {
1408                                         mod_timer(&phba->hb_tmofunc,
1409                                                  jiffies +
1410                                                  msecs_to_jiffies(1000 *
1411                                                  LPFC_HB_MBOX_INTERVAL));
1412                                         return;
1413                                 }
1414
1415                                 lpfc_heart_beat(phba, pmboxq);
1416                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1417                                 pmboxq->vport = phba->pport;
1418                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1419                                                 MBX_NOWAIT);
1420
1421                                 if (retval != MBX_BUSY &&
1422                                         retval != MBX_SUCCESS) {
1423                                         mempool_free(pmboxq,
1424                                                         phba->mbox_mem_pool);
1425                                         mod_timer(&phba->hb_tmofunc,
1426                                                 jiffies +
1427                                                 msecs_to_jiffies(1000 *
1428                                                 LPFC_HB_MBOX_INTERVAL));
1429                                         return;
1430                                 }
1431                                 phba->skipped_hb = 0;
1432                                 phba->hb_outstanding = 1;
1433                         } else if (time_before_eq(phba->last_completion_time,
1434                                         phba->skipped_hb)) {
1435                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1436                                         "2857 Last completion time not "
1437                                         " updated in %d ms\n",
1438                                         jiffies_to_msecs(jiffies
1439                                                  - phba->last_completion_time));
1440                         } else
1441                                 phba->skipped_hb = jiffies;
1442
1443                         mod_timer(&phba->hb_tmofunc,
1444                                  jiffies +
1445                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1446                         return;
1447                 } else {
1448                         /*
1449                         * If heart beat timeout called with hb_outstanding set
1450                         * we need to give the hb mailbox cmd a chance to
1451                         * complete or TMO.
1452                         */
1453                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1454                                         "0459 Adapter heartbeat still out"
1455                                         "standing:last compl time was %d ms.\n",
1456                                         jiffies_to_msecs(jiffies
1457                                                  - phba->last_completion_time));
1458                         mod_timer(&phba->hb_tmofunc,
1459                                 jiffies +
1460                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1461                 }
1462         } else {
1463                         mod_timer(&phba->hb_tmofunc,
1464                                 jiffies +
1465                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1466         }
1467 }
1468
1469 /**
1470  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1471  * @phba: pointer to lpfc hba data structure.
1472  *
1473  * This routine is called to bring the HBA offline when HBA hardware error
1474  * other than Port Error 6 has been detected.
1475  **/
1476 static void
1477 lpfc_offline_eratt(struct lpfc_hba *phba)
1478 {
1479         struct lpfc_sli   *psli = &phba->sli;
1480
1481         spin_lock_irq(&phba->hbalock);
1482         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1483         spin_unlock_irq(&phba->hbalock);
1484         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1485
1486         lpfc_offline(phba);
1487         lpfc_reset_barrier(phba);
1488         spin_lock_irq(&phba->hbalock);
1489         lpfc_sli_brdreset(phba);
1490         spin_unlock_irq(&phba->hbalock);
1491         lpfc_hba_down_post(phba);
1492         lpfc_sli_brdready(phba, HS_MBRDY);
1493         lpfc_unblock_mgmt_io(phba);
1494         phba->link_state = LPFC_HBA_ERROR;
1495         return;
1496 }
1497
1498 /**
1499  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1500  * @phba: pointer to lpfc hba data structure.
1501  *
1502  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1503  * other than Port Error 6 has been detected.
1504  **/
1505 void
1506 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1507 {
1508         spin_lock_irq(&phba->hbalock);
1509         phba->link_state = LPFC_HBA_ERROR;
1510         spin_unlock_irq(&phba->hbalock);
1511
1512         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1513         lpfc_sli_flush_io_rings(phba);
1514         lpfc_offline(phba);
1515         lpfc_hba_down_post(phba);
1516         lpfc_unblock_mgmt_io(phba);
1517 }
1518
1519 /**
1520  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1521  * @phba: pointer to lpfc hba data structure.
1522  *
1523  * This routine is invoked to handle the deferred HBA hardware error
1524  * conditions. This type of error is indicated by HBA by setting ER1
1525  * and another ER bit in the host status register. The driver will
1526  * wait until the ER1 bit clears before handling the error condition.
1527  **/
1528 static void
1529 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1530 {
1531         uint32_t old_host_status = phba->work_hs;
1532         struct lpfc_sli *psli = &phba->sli;
1533
1534         /* If the pci channel is offline, ignore possible errors,
1535          * since we cannot communicate with the pci card anyway.
1536          */
1537         if (pci_channel_offline(phba->pcidev)) {
1538                 spin_lock_irq(&phba->hbalock);
1539                 phba->hba_flag &= ~DEFER_ERATT;
1540                 spin_unlock_irq(&phba->hbalock);
1541                 return;
1542         }
1543
1544         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1545                 "0479 Deferred Adapter Hardware Error "
1546                 "Data: x%x x%x x%x\n",
1547                 phba->work_hs,
1548                 phba->work_status[0], phba->work_status[1]);
1549
1550         spin_lock_irq(&phba->hbalock);
1551         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1552         spin_unlock_irq(&phba->hbalock);
1553
1554
1555         /*
1556          * Firmware stops when it triggred erratt. That could cause the I/Os
1557          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1558          * SCSI layer retry it after re-establishing link.
1559          */
1560         lpfc_sli_abort_fcp_rings(phba);
1561
1562         /*
1563          * There was a firmware error. Take the hba offline and then
1564          * attempt to restart it.
1565          */
1566         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1567         lpfc_offline(phba);
1568
1569         /* Wait for the ER1 bit to clear.*/
1570         while (phba->work_hs & HS_FFER1) {
1571                 msleep(100);
1572                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1573                         phba->work_hs = UNPLUG_ERR ;
1574                         break;
1575                 }
1576                 /* If driver is unloading let the worker thread continue */
1577                 if (phba->pport->load_flag & FC_UNLOADING) {
1578                         phba->work_hs = 0;
1579                         break;
1580                 }
1581         }
1582
1583         /*
1584          * This is to ptrotect against a race condition in which
1585          * first write to the host attention register clear the
1586          * host status register.
1587          */
1588         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1589                 phba->work_hs = old_host_status & ~HS_FFER1;
1590
1591         spin_lock_irq(&phba->hbalock);
1592         phba->hba_flag &= ~DEFER_ERATT;
1593         spin_unlock_irq(&phba->hbalock);
1594         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1595         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1596 }
1597
1598 static void
1599 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1600 {
1601         struct lpfc_board_event_header board_event;
1602         struct Scsi_Host *shost;
1603
1604         board_event.event_type = FC_REG_BOARD_EVENT;
1605         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1606         shost = lpfc_shost_from_vport(phba->pport);
1607         fc_host_post_vendor_event(shost, fc_get_event_number(),
1608                                   sizeof(board_event),
1609                                   (char *) &board_event,
1610                                   LPFC_NL_VENDOR_ID);
1611 }
1612
1613 /**
1614  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1615  * @phba: pointer to lpfc hba data structure.
1616  *
1617  * This routine is invoked to handle the following HBA hardware error
1618  * conditions:
1619  * 1 - HBA error attention interrupt
1620  * 2 - DMA ring index out of range
1621  * 3 - Mailbox command came back as unknown
1622  **/
1623 static void
1624 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1625 {
1626         struct lpfc_vport *vport = phba->pport;
1627         struct lpfc_sli   *psli = &phba->sli;
1628         uint32_t event_data;
1629         unsigned long temperature;
1630         struct temp_event temp_event_data;
1631         struct Scsi_Host  *shost;
1632
1633         /* If the pci channel is offline, ignore possible errors,
1634          * since we cannot communicate with the pci card anyway.
1635          */
1636         if (pci_channel_offline(phba->pcidev)) {
1637                 spin_lock_irq(&phba->hbalock);
1638                 phba->hba_flag &= ~DEFER_ERATT;
1639                 spin_unlock_irq(&phba->hbalock);
1640                 return;
1641         }
1642
1643         /* If resets are disabled then leave the HBA alone and return */
1644         if (!phba->cfg_enable_hba_reset)
1645                 return;
1646
1647         /* Send an internal error event to mgmt application */
1648         lpfc_board_errevt_to_mgmt(phba);
1649
1650         if (phba->hba_flag & DEFER_ERATT)
1651                 lpfc_handle_deferred_eratt(phba);
1652
1653         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1654                 if (phba->work_hs & HS_FFER6)
1655                         /* Re-establishing Link */
1656                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1657                                         "1301 Re-establishing Link "
1658                                         "Data: x%x x%x x%x\n",
1659                                         phba->work_hs, phba->work_status[0],
1660                                         phba->work_status[1]);
1661                 if (phba->work_hs & HS_FFER8)
1662                         /* Device Zeroization */
1663                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1664                                         "2861 Host Authentication device "
1665                                         "zeroization Data:x%x x%x x%x\n",
1666                                         phba->work_hs, phba->work_status[0],
1667                                         phba->work_status[1]);
1668
1669                 spin_lock_irq(&phba->hbalock);
1670                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1671                 spin_unlock_irq(&phba->hbalock);
1672
1673                 /*
1674                 * Firmware stops when it triggled erratt with HS_FFER6.
1675                 * That could cause the I/Os dropped by the firmware.
1676                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1677                 * retry it after re-establishing link.
1678                 */
1679                 lpfc_sli_abort_fcp_rings(phba);
1680
1681                 /*
1682                  * There was a firmware error.  Take the hba offline and then
1683                  * attempt to restart it.
1684                  */
1685                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1686                 lpfc_offline(phba);
1687                 lpfc_sli_brdrestart(phba);
1688                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1689                         lpfc_unblock_mgmt_io(phba);
1690                         return;
1691                 }
1692                 lpfc_unblock_mgmt_io(phba);
1693         } else if (phba->work_hs & HS_CRIT_TEMP) {
1694                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1695                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1696                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1697                 temp_event_data.data = (uint32_t)temperature;
1698
1699                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1700                                 "0406 Adapter maximum temperature exceeded "
1701                                 "(%ld), taking this port offline "
1702                                 "Data: x%x x%x x%x\n",
1703                                 temperature, phba->work_hs,
1704                                 phba->work_status[0], phba->work_status[1]);
1705
1706                 shost = lpfc_shost_from_vport(phba->pport);
1707                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1708                                           sizeof(temp_event_data),
1709                                           (char *) &temp_event_data,
1710                                           SCSI_NL_VID_TYPE_PCI
1711                                           | PCI_VENDOR_ID_EMULEX);
1712
1713                 spin_lock_irq(&phba->hbalock);
1714                 phba->over_temp_state = HBA_OVER_TEMP;
1715                 spin_unlock_irq(&phba->hbalock);
1716                 lpfc_offline_eratt(phba);
1717
1718         } else {
1719                 /* The if clause above forces this code path when the status
1720                  * failure is a value other than FFER6. Do not call the offline
1721                  * twice. This is the adapter hardware error path.
1722                  */
1723                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1724                                 "0457 Adapter Hardware Error "
1725                                 "Data: x%x x%x x%x\n",
1726                                 phba->work_hs,
1727                                 phba->work_status[0], phba->work_status[1]);
1728
1729                 event_data = FC_REG_DUMP_EVENT;
1730                 shost = lpfc_shost_from_vport(vport);
1731                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1732                                 sizeof(event_data), (char *) &event_data,
1733                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1734
1735                 lpfc_offline_eratt(phba);
1736         }
1737         return;
1738 }
1739
1740 /**
1741  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1742  * @phba: pointer to lpfc hba data structure.
1743  * @mbx_action: flag for mailbox shutdown action.
1744  *
1745  * This routine is invoked to perform an SLI4 port PCI function reset in
1746  * response to port status register polling attention. It waits for port
1747  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1748  * During this process, interrupt vectors are freed and later requested
1749  * for handling possible port resource change.
1750  **/
1751 static int
1752 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1753                             bool en_rn_msg)
1754 {
1755         int rc;
1756         uint32_t intr_mode;
1757
1758         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1759             LPFC_SLI_INTF_IF_TYPE_2) {
1760                 /*
1761                  * On error status condition, driver need to wait for port
1762                  * ready before performing reset.
1763                  */
1764                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1765                 if (rc)
1766                         return rc;
1767         }
1768
1769         /* need reset: attempt for port recovery */
1770         if (en_rn_msg)
1771                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1772                                 "2887 Reset Needed: Attempting Port "
1773                                 "Recovery...\n");
1774         lpfc_offline_prep(phba, mbx_action);
1775         lpfc_sli_flush_io_rings(phba);
1776         lpfc_offline(phba);
1777         /* release interrupt for possible resource change */
1778         lpfc_sli4_disable_intr(phba);
1779         rc = lpfc_sli_brdrestart(phba);
1780         if (rc) {
1781                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1782                                 "6309 Failed to restart board\n");
1783                 return rc;
1784         }
1785         /* request and enable interrupt */
1786         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1787         if (intr_mode == LPFC_INTR_ERROR) {
1788                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1789                                 "3175 Failed to enable interrupt\n");
1790                 return -EIO;
1791         }
1792         phba->intr_mode = intr_mode;
1793         rc = lpfc_online(phba);
1794         if (rc == 0)
1795                 lpfc_unblock_mgmt_io(phba);
1796
1797         return rc;
1798 }
1799
1800 /**
1801  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1802  * @phba: pointer to lpfc hba data structure.
1803  *
1804  * This routine is invoked to handle the SLI4 HBA hardware error attention
1805  * conditions.
1806  **/
1807 static void
1808 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1809 {
1810         struct lpfc_vport *vport = phba->pport;
1811         uint32_t event_data;
1812         struct Scsi_Host *shost;
1813         uint32_t if_type;
1814         struct lpfc_register portstat_reg = {0};
1815         uint32_t reg_err1, reg_err2;
1816         uint32_t uerrlo_reg, uemasklo_reg;
1817         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1818         bool en_rn_msg = true;
1819         struct temp_event temp_event_data;
1820         struct lpfc_register portsmphr_reg;
1821         int rc, i;
1822
1823         /* If the pci channel is offline, ignore possible errors, since
1824          * we cannot communicate with the pci card anyway.
1825          */
1826         if (pci_channel_offline(phba->pcidev)) {
1827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1828                                 "3166 pci channel is offline\n");
1829                 lpfc_sli4_offline_eratt(phba);
1830                 return;
1831         }
1832
1833         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1834         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1835         switch (if_type) {
1836         case LPFC_SLI_INTF_IF_TYPE_0:
1837                 pci_rd_rc1 = lpfc_readl(
1838                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1839                                 &uerrlo_reg);
1840                 pci_rd_rc2 = lpfc_readl(
1841                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1842                                 &uemasklo_reg);
1843                 /* consider PCI bus read error as pci_channel_offline */
1844                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1845                         return;
1846                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1847                         lpfc_sli4_offline_eratt(phba);
1848                         return;
1849                 }
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1851                                 "7623 Checking UE recoverable");
1852
1853                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1854                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1855                                        &portsmphr_reg.word0))
1856                                 continue;
1857
1858                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1859                                                    &portsmphr_reg);
1860                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1861                             LPFC_PORT_SEM_UE_RECOVERABLE)
1862                                 break;
1863                         /*Sleep for 1Sec, before checking SEMAPHORE */
1864                         msleep(1000);
1865                 }
1866
1867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1868                                 "4827 smphr_port_status x%x : Waited %dSec",
1869                                 smphr_port_status, i);
1870
1871                 /* Recoverable UE, reset the HBA device */
1872                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1873                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1874                         for (i = 0; i < 20; i++) {
1875                                 msleep(1000);
1876                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1877                                     &portsmphr_reg.word0) &&
1878                                     (LPFC_POST_STAGE_PORT_READY ==
1879                                      bf_get(lpfc_port_smphr_port_status,
1880                                      &portsmphr_reg))) {
1881                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1882                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1883                                         if (rc == 0)
1884                                                 return;
1885                                         lpfc_printf_log(phba,
1886                                                 KERN_ERR, LOG_INIT,
1887                                                 "4215 Failed to recover UE");
1888                                         break;
1889                                 }
1890                         }
1891                 }
1892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1893                                 "7624 Firmware not ready: Failing UE recovery,"
1894                                 " waited %dSec", i);
1895                 phba->link_state = LPFC_HBA_ERROR;
1896                 break;
1897
1898         case LPFC_SLI_INTF_IF_TYPE_2:
1899         case LPFC_SLI_INTF_IF_TYPE_6:
1900                 pci_rd_rc1 = lpfc_readl(
1901                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1902                                 &portstat_reg.word0);
1903                 /* consider PCI bus read error as pci_channel_offline */
1904                 if (pci_rd_rc1 == -EIO) {
1905                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1906                                 "3151 PCI bus read access failure: x%x\n",
1907                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1908                         lpfc_sli4_offline_eratt(phba);
1909                         return;
1910                 }
1911                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1912                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1913                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1914                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1915                                 "2889 Port Overtemperature event, "
1916                                 "taking port offline Data: x%x x%x\n",
1917                                 reg_err1, reg_err2);
1918
1919                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1920                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1921                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1922                         temp_event_data.data = 0xFFFFFFFF;
1923
1924                         shost = lpfc_shost_from_vport(phba->pport);
1925                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1926                                                   sizeof(temp_event_data),
1927                                                   (char *)&temp_event_data,
1928                                                   SCSI_NL_VID_TYPE_PCI
1929                                                   | PCI_VENDOR_ID_EMULEX);
1930
1931                         spin_lock_irq(&phba->hbalock);
1932                         phba->over_temp_state = HBA_OVER_TEMP;
1933                         spin_unlock_irq(&phba->hbalock);
1934                         lpfc_sli4_offline_eratt(phba);
1935                         return;
1936                 }
1937                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1938                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1939                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1940                                         "3143 Port Down: Firmware Update "
1941                                         "Detected\n");
1942                         en_rn_msg = false;
1943                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1944                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1945                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1946                                         "3144 Port Down: Debug Dump\n");
1947                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1948                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1949                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1950                                         "3145 Port Down: Provisioning\n");
1951
1952                 /* If resets are disabled then leave the HBA alone and return */
1953                 if (!phba->cfg_enable_hba_reset)
1954                         return;
1955
1956                 /* Check port status register for function reset */
1957                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1958                                 en_rn_msg);
1959                 if (rc == 0) {
1960                         /* don't report event on forced debug dump */
1961                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1962                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1963                                 return;
1964                         else
1965                                 break;
1966                 }
1967                 /* fall through for not able to recover */
1968                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1969                                 "3152 Unrecoverable error\n");
1970                 phba->link_state = LPFC_HBA_ERROR;
1971                 break;
1972         case LPFC_SLI_INTF_IF_TYPE_1:
1973         default:
1974                 break;
1975         }
1976         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1977                         "3123 Report dump event to upper layer\n");
1978         /* Send an internal error event to mgmt application */
1979         lpfc_board_errevt_to_mgmt(phba);
1980
1981         event_data = FC_REG_DUMP_EVENT;
1982         shost = lpfc_shost_from_vport(vport);
1983         fc_host_post_vendor_event(shost, fc_get_event_number(),
1984                                   sizeof(event_data), (char *) &event_data,
1985                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1986 }
1987
1988 /**
1989  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1990  * @phba: pointer to lpfc HBA data structure.
1991  *
1992  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1993  * routine from the API jump table function pointer from the lpfc_hba struct.
1994  *
1995  * Return codes
1996  *   0 - success.
1997  *   Any other value - error.
1998  **/
1999 void
2000 lpfc_handle_eratt(struct lpfc_hba *phba)
2001 {
2002         (*phba->lpfc_handle_eratt)(phba);
2003 }
2004
2005 /**
2006  * lpfc_handle_latt - The HBA link event handler
2007  * @phba: pointer to lpfc hba data structure.
2008  *
2009  * This routine is invoked from the worker thread to handle a HBA host
2010  * attention link event. SLI3 only.
2011  **/
2012 void
2013 lpfc_handle_latt(struct lpfc_hba *phba)
2014 {
2015         struct lpfc_vport *vport = phba->pport;
2016         struct lpfc_sli   *psli = &phba->sli;
2017         LPFC_MBOXQ_t *pmb;
2018         volatile uint32_t control;
2019         struct lpfc_dmabuf *mp;
2020         int rc = 0;
2021
2022         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2023         if (!pmb) {
2024                 rc = 1;
2025                 goto lpfc_handle_latt_err_exit;
2026         }
2027
2028         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2029         if (!mp) {
2030                 rc = 2;
2031                 goto lpfc_handle_latt_free_pmb;
2032         }
2033
2034         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2035         if (!mp->virt) {
2036                 rc = 3;
2037                 goto lpfc_handle_latt_free_mp;
2038         }
2039
2040         /* Cleanup any outstanding ELS commands */
2041         lpfc_els_flush_all_cmd(phba);
2042
2043         psli->slistat.link_event++;
2044         lpfc_read_topology(phba, pmb, mp);
2045         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2046         pmb->vport = vport;
2047         /* Block ELS IOCBs until we have processed this mbox command */
2048         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2049         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2050         if (rc == MBX_NOT_FINISHED) {
2051                 rc = 4;
2052                 goto lpfc_handle_latt_free_mbuf;
2053         }
2054
2055         /* Clear Link Attention in HA REG */
2056         spin_lock_irq(&phba->hbalock);
2057         writel(HA_LATT, phba->HAregaddr);
2058         readl(phba->HAregaddr); /* flush */
2059         spin_unlock_irq(&phba->hbalock);
2060
2061         return;
2062
2063 lpfc_handle_latt_free_mbuf:
2064         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2065         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2066 lpfc_handle_latt_free_mp:
2067         kfree(mp);
2068 lpfc_handle_latt_free_pmb:
2069         mempool_free(pmb, phba->mbox_mem_pool);
2070 lpfc_handle_latt_err_exit:
2071         /* Enable Link attention interrupts */
2072         spin_lock_irq(&phba->hbalock);
2073         psli->sli_flag |= LPFC_PROCESS_LA;
2074         control = readl(phba->HCregaddr);
2075         control |= HC_LAINT_ENA;
2076         writel(control, phba->HCregaddr);
2077         readl(phba->HCregaddr); /* flush */
2078
2079         /* Clear Link Attention in HA REG */
2080         writel(HA_LATT, phba->HAregaddr);
2081         readl(phba->HAregaddr); /* flush */
2082         spin_unlock_irq(&phba->hbalock);
2083         lpfc_linkdown(phba);
2084         phba->link_state = LPFC_HBA_ERROR;
2085
2086         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2087                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2088
2089         return;
2090 }
2091
2092 /**
2093  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2094  * @phba: pointer to lpfc hba data structure.
2095  * @vpd: pointer to the vital product data.
2096  * @len: length of the vital product data in bytes.
2097  *
2098  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2099  * an array of characters. In this routine, the ModelName, ProgramType, and
2100  * ModelDesc, etc. fields of the phba data structure will be populated.
2101  *
2102  * Return codes
2103  *   0 - pointer to the VPD passed in is NULL
2104  *   1 - success
2105  **/
2106 int
2107 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2108 {
2109         uint8_t lenlo, lenhi;
2110         int Length;
2111         int i, j;
2112         int finished = 0;
2113         int index = 0;
2114
2115         if (!vpd)
2116                 return 0;
2117
2118         /* Vital Product */
2119         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2120                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2121                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2122                         (uint32_t) vpd[3]);
2123         while (!finished && (index < (len - 4))) {
2124                 switch (vpd[index]) {
2125                 case 0x82:
2126                 case 0x91:
2127                         index += 1;
2128                         lenlo = vpd[index];
2129                         index += 1;
2130                         lenhi = vpd[index];
2131                         index += 1;
2132                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2133                         index += i;
2134                         break;
2135                 case 0x90:
2136                         index += 1;
2137                         lenlo = vpd[index];
2138                         index += 1;
2139                         lenhi = vpd[index];
2140                         index += 1;
2141                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2142                         if (Length > len - index)
2143                                 Length = len - index;
2144                         while (Length > 0) {
2145                         /* Look for Serial Number */
2146                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2147                                 index += 2;
2148                                 i = vpd[index];
2149                                 index += 1;
2150                                 j = 0;
2151                                 Length -= (3+i);
2152                                 while(i--) {
2153                                         phba->SerialNumber[j++] = vpd[index++];
2154                                         if (j == 31)
2155                                                 break;
2156                                 }
2157                                 phba->SerialNumber[j] = 0;
2158                                 continue;
2159                         }
2160                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2161                                 phba->vpd_flag |= VPD_MODEL_DESC;
2162                                 index += 2;
2163                                 i = vpd[index];
2164                                 index += 1;
2165                                 j = 0;
2166                                 Length -= (3+i);
2167                                 while(i--) {
2168                                         phba->ModelDesc[j++] = vpd[index++];
2169                                         if (j == 255)
2170                                                 break;
2171                                 }
2172                                 phba->ModelDesc[j] = 0;
2173                                 continue;
2174                         }
2175                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2176                                 phba->vpd_flag |= VPD_MODEL_NAME;
2177                                 index += 2;
2178                                 i = vpd[index];
2179                                 index += 1;
2180                                 j = 0;
2181                                 Length -= (3+i);
2182                                 while(i--) {
2183                                         phba->ModelName[j++] = vpd[index++];
2184                                         if (j == 79)
2185                                                 break;
2186                                 }
2187                                 phba->ModelName[j] = 0;
2188                                 continue;
2189                         }
2190                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2191                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2192                                 index += 2;
2193                                 i = vpd[index];
2194                                 index += 1;
2195                                 j = 0;
2196                                 Length -= (3+i);
2197                                 while(i--) {
2198                                         phba->ProgramType[j++] = vpd[index++];
2199                                         if (j == 255)
2200                                                 break;
2201                                 }
2202                                 phba->ProgramType[j] = 0;
2203                                 continue;
2204                         }
2205                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2206                                 phba->vpd_flag |= VPD_PORT;
2207                                 index += 2;
2208                                 i = vpd[index];
2209                                 index += 1;
2210                                 j = 0;
2211                                 Length -= (3+i);
2212                                 while(i--) {
2213                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2214                                             (phba->sli4_hba.pport_name_sta ==
2215                                              LPFC_SLI4_PPNAME_GET)) {
2216                                                 j++;
2217                                                 index++;
2218                                         } else
2219                                                 phba->Port[j++] = vpd[index++];
2220                                         if (j == 19)
2221                                                 break;
2222                                 }
2223                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2224                                     (phba->sli4_hba.pport_name_sta ==
2225                                      LPFC_SLI4_PPNAME_NON))
2226                                         phba->Port[j] = 0;
2227                                 continue;
2228                         }
2229                         else {
2230                                 index += 2;
2231                                 i = vpd[index];
2232                                 index += 1;
2233                                 index += i;
2234                                 Length -= (3 + i);
2235                         }
2236                 }
2237                 finished = 0;
2238                 break;
2239                 case 0x78:
2240                         finished = 1;
2241                         break;
2242                 default:
2243                         index ++;
2244                         break;
2245                 }
2246         }
2247
2248         return(1);
2249 }
2250
2251 /**
2252  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2253  * @phba: pointer to lpfc hba data structure.
2254  * @mdp: pointer to the data structure to hold the derived model name.
2255  * @descp: pointer to the data structure to hold the derived description.
2256  *
2257  * This routine retrieves HBA's description based on its registered PCI device
2258  * ID. The @descp passed into this function points to an array of 256 chars. It
2259  * shall be returned with the model name, maximum speed, and the host bus type.
2260  * The @mdp passed into this function points to an array of 80 chars. When the
2261  * function returns, the @mdp will be filled with the model name.
2262  **/
2263 static void
2264 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2265 {
2266         lpfc_vpd_t *vp;
2267         uint16_t dev_id = phba->pcidev->device;
2268         int max_speed;
2269         int GE = 0;
2270         int oneConnect = 0; /* default is not a oneConnect */
2271         struct {
2272                 char *name;
2273                 char *bus;
2274                 char *function;
2275         } m = {"<Unknown>", "", ""};
2276
2277         if (mdp && mdp[0] != '\0'
2278                 && descp && descp[0] != '\0')
2279                 return;
2280
2281         if (phba->lmt & LMT_64Gb)
2282                 max_speed = 64;
2283         else if (phba->lmt & LMT_32Gb)
2284                 max_speed = 32;
2285         else if (phba->lmt & LMT_16Gb)
2286                 max_speed = 16;
2287         else if (phba->lmt & LMT_10Gb)
2288                 max_speed = 10;
2289         else if (phba->lmt & LMT_8Gb)
2290                 max_speed = 8;
2291         else if (phba->lmt & LMT_4Gb)
2292                 max_speed = 4;
2293         else if (phba->lmt & LMT_2Gb)
2294                 max_speed = 2;
2295         else if (phba->lmt & LMT_1Gb)
2296                 max_speed = 1;
2297         else
2298                 max_speed = 0;
2299
2300         vp = &phba->vpd;
2301
2302         switch (dev_id) {
2303         case PCI_DEVICE_ID_FIREFLY:
2304                 m = (typeof(m)){"LP6000", "PCI",
2305                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2306                 break;
2307         case PCI_DEVICE_ID_SUPERFLY:
2308                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2309                         m = (typeof(m)){"LP7000", "PCI", ""};
2310                 else
2311                         m = (typeof(m)){"LP7000E", "PCI", ""};
2312                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2313                 break;
2314         case PCI_DEVICE_ID_DRAGONFLY:
2315                 m = (typeof(m)){"LP8000", "PCI",
2316                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2317                 break;
2318         case PCI_DEVICE_ID_CENTAUR:
2319                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2320                         m = (typeof(m)){"LP9002", "PCI", ""};
2321                 else
2322                         m = (typeof(m)){"LP9000", "PCI", ""};
2323                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2324                 break;
2325         case PCI_DEVICE_ID_RFLY:
2326                 m = (typeof(m)){"LP952", "PCI",
2327                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2328                 break;
2329         case PCI_DEVICE_ID_PEGASUS:
2330                 m = (typeof(m)){"LP9802", "PCI-X",
2331                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2332                 break;
2333         case PCI_DEVICE_ID_THOR:
2334                 m = (typeof(m)){"LP10000", "PCI-X",
2335                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2336                 break;
2337         case PCI_DEVICE_ID_VIPER:
2338                 m = (typeof(m)){"LPX1000",  "PCI-X",
2339                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2340                 break;
2341         case PCI_DEVICE_ID_PFLY:
2342                 m = (typeof(m)){"LP982", "PCI-X",
2343                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2344                 break;
2345         case PCI_DEVICE_ID_TFLY:
2346                 m = (typeof(m)){"LP1050", "PCI-X",
2347                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2348                 break;
2349         case PCI_DEVICE_ID_HELIOS:
2350                 m = (typeof(m)){"LP11000", "PCI-X2",
2351                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2352                 break;
2353         case PCI_DEVICE_ID_HELIOS_SCSP:
2354                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2355                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2356                 break;
2357         case PCI_DEVICE_ID_HELIOS_DCSP:
2358                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2359                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2360                 break;
2361         case PCI_DEVICE_ID_NEPTUNE:
2362                 m = (typeof(m)){"LPe1000", "PCIe",
2363                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2364                 break;
2365         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2366                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2370                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2371                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2372                 break;
2373         case PCI_DEVICE_ID_BMID:
2374                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2375                 break;
2376         case PCI_DEVICE_ID_BSMB:
2377                 m = (typeof(m)){"LP111", "PCI-X2",
2378                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2379                 break;
2380         case PCI_DEVICE_ID_ZEPHYR:
2381                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2382                 break;
2383         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2384                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2387                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2388                 GE = 1;
2389                 break;
2390         case PCI_DEVICE_ID_ZMID:
2391                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_ZSMB:
2394                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2395                 break;
2396         case PCI_DEVICE_ID_LP101:
2397                 m = (typeof(m)){"LP101", "PCI-X",
2398                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_LP10000S:
2401                 m = (typeof(m)){"LP10000-S", "PCI",
2402                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2403                 break;
2404         case PCI_DEVICE_ID_LP11000S:
2405                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2406                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2407                 break;
2408         case PCI_DEVICE_ID_LPE11000S:
2409                 m = (typeof(m)){"LPe11000-S", "PCIe",
2410                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2411                 break;
2412         case PCI_DEVICE_ID_SAT:
2413                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_SAT_MID:
2416                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2417                 break;
2418         case PCI_DEVICE_ID_SAT_SMB:
2419                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_SAT_DCSP:
2422                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT_SCSP:
2425                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_S:
2428                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_HORNET:
2431                 m = (typeof(m)){"LP21000", "PCIe",
2432                                 "Obsolete, Unsupported FCoE Adapter"};
2433                 GE = 1;
2434                 break;
2435         case PCI_DEVICE_ID_PROTEUS_VF:
2436                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2437                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_PROTEUS_PF:
2440                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2441                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2442                 break;
2443         case PCI_DEVICE_ID_PROTEUS_S:
2444                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2445                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2446                 break;
2447         case PCI_DEVICE_ID_TIGERSHARK:
2448                 oneConnect = 1;
2449                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2450                 break;
2451         case PCI_DEVICE_ID_TOMCAT:
2452                 oneConnect = 1;
2453                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2454                 break;
2455         case PCI_DEVICE_ID_FALCON:
2456                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2457                                 "EmulexSecure Fibre"};
2458                 break;
2459         case PCI_DEVICE_ID_BALIUS:
2460                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2461                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2462                 break;
2463         case PCI_DEVICE_ID_LANCER_FC:
2464                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2465                 break;
2466         case PCI_DEVICE_ID_LANCER_FC_VF:
2467                 m = (typeof(m)){"LPe16000", "PCIe",
2468                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2469                 break;
2470         case PCI_DEVICE_ID_LANCER_FCOE:
2471                 oneConnect = 1;
2472                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2473                 break;
2474         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2475                 oneConnect = 1;
2476                 m = (typeof(m)){"OCe15100", "PCIe",
2477                                 "Obsolete, Unsupported FCoE"};
2478                 break;
2479         case PCI_DEVICE_ID_LANCER_G6_FC:
2480                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2481                 break;
2482         case PCI_DEVICE_ID_LANCER_G7_FC:
2483                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2484                 break;
2485         case PCI_DEVICE_ID_SKYHAWK:
2486         case PCI_DEVICE_ID_SKYHAWK_VF:
2487                 oneConnect = 1;
2488                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2489                 break;
2490         default:
2491                 m = (typeof(m)){"Unknown", "", ""};
2492                 break;
2493         }
2494
2495         if (mdp && mdp[0] == '\0')
2496                 snprintf(mdp, 79,"%s", m.name);
2497         /*
2498          * oneConnect hba requires special processing, they are all initiators
2499          * and we put the port number on the end
2500          */
2501         if (descp && descp[0] == '\0') {
2502                 if (oneConnect)
2503                         snprintf(descp, 255,
2504                                 "Emulex OneConnect %s, %s Initiator %s",
2505                                 m.name, m.function,
2506                                 phba->Port);
2507                 else if (max_speed == 0)
2508                         snprintf(descp, 255,
2509                                 "Emulex %s %s %s",
2510                                 m.name, m.bus, m.function);
2511                 else
2512                         snprintf(descp, 255,
2513                                 "Emulex %s %d%s %s %s",
2514                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2515                                 m.bus, m.function);
2516         }
2517 }
2518
2519 /**
2520  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2521  * @phba: pointer to lpfc hba data structure.
2522  * @pring: pointer to a IOCB ring.
2523  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2524  *
2525  * This routine posts a given number of IOCBs with the associated DMA buffer
2526  * descriptors specified by the cnt argument to the given IOCB ring.
2527  *
2528  * Return codes
2529  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2530  **/
2531 int
2532 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2533 {
2534         IOCB_t *icmd;
2535         struct lpfc_iocbq *iocb;
2536         struct lpfc_dmabuf *mp1, *mp2;
2537
2538         cnt += pring->missbufcnt;
2539
2540         /* While there are buffers to post */
2541         while (cnt > 0) {
2542                 /* Allocate buffer for  command iocb */
2543                 iocb = lpfc_sli_get_iocbq(phba);
2544                 if (iocb == NULL) {
2545                         pring->missbufcnt = cnt;
2546                         return cnt;
2547                 }
2548                 icmd = &iocb->iocb;
2549
2550                 /* 2 buffers can be posted per command */
2551                 /* Allocate buffer to post */
2552                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2553                 if (mp1)
2554                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2555                 if (!mp1 || !mp1->virt) {
2556                         kfree(mp1);
2557                         lpfc_sli_release_iocbq(phba, iocb);
2558                         pring->missbufcnt = cnt;
2559                         return cnt;
2560                 }
2561
2562                 INIT_LIST_HEAD(&mp1->list);
2563                 /* Allocate buffer to post */
2564                 if (cnt > 1) {
2565                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2566                         if (mp2)
2567                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2568                                                             &mp2->phys);
2569                         if (!mp2 || !mp2->virt) {
2570                                 kfree(mp2);
2571                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2572                                 kfree(mp1);
2573                                 lpfc_sli_release_iocbq(phba, iocb);
2574                                 pring->missbufcnt = cnt;
2575                                 return cnt;
2576                         }
2577
2578                         INIT_LIST_HEAD(&mp2->list);
2579                 } else {
2580                         mp2 = NULL;
2581                 }
2582
2583                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2584                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2585                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2586                 icmd->ulpBdeCount = 1;
2587                 cnt--;
2588                 if (mp2) {
2589                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2590                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2591                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2592                         cnt--;
2593                         icmd->ulpBdeCount = 2;
2594                 }
2595
2596                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2597                 icmd->ulpLe = 1;
2598
2599                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2600                     IOCB_ERROR) {
2601                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2602                         kfree(mp1);
2603                         cnt++;
2604                         if (mp2) {
2605                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2606                                 kfree(mp2);
2607                                 cnt++;
2608                         }
2609                         lpfc_sli_release_iocbq(phba, iocb);
2610                         pring->missbufcnt = cnt;
2611                         return cnt;
2612                 }
2613                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2614                 if (mp2)
2615                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2616         }
2617         pring->missbufcnt = 0;
2618         return 0;
2619 }
2620
2621 /**
2622  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2623  * @phba: pointer to lpfc hba data structure.
2624  *
2625  * This routine posts initial receive IOCB buffers to the ELS ring. The
2626  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2627  * set to 64 IOCBs. SLI3 only.
2628  *
2629  * Return codes
2630  *   0 - success (currently always success)
2631  **/
2632 static int
2633 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2634 {
2635         struct lpfc_sli *psli = &phba->sli;
2636
2637         /* Ring 0, ELS / CT buffers */
2638         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2639         /* Ring 2 - FCP no buffers needed */
2640
2641         return 0;
2642 }
2643
2644 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2645
2646 /**
2647  * lpfc_sha_init - Set up initial array of hash table entries
2648  * @HashResultPointer: pointer to an array as hash table.
2649  *
2650  * This routine sets up the initial values to the array of hash table entries
2651  * for the LC HBAs.
2652  **/
2653 static void
2654 lpfc_sha_init(uint32_t * HashResultPointer)
2655 {
2656         HashResultPointer[0] = 0x67452301;
2657         HashResultPointer[1] = 0xEFCDAB89;
2658         HashResultPointer[2] = 0x98BADCFE;
2659         HashResultPointer[3] = 0x10325476;
2660         HashResultPointer[4] = 0xC3D2E1F0;
2661 }
2662
2663 /**
2664  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2665  * @HashResultPointer: pointer to an initial/result hash table.
2666  * @HashWorkingPointer: pointer to an working hash table.
2667  *
2668  * This routine iterates an initial hash table pointed by @HashResultPointer
2669  * with the values from the working hash table pointeed by @HashWorkingPointer.
2670  * The results are putting back to the initial hash table, returned through
2671  * the @HashResultPointer as the result hash table.
2672  **/
2673 static void
2674 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2675 {
2676         int t;
2677         uint32_t TEMP;
2678         uint32_t A, B, C, D, E;
2679         t = 16;
2680         do {
2681                 HashWorkingPointer[t] =
2682                     S(1,
2683                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2684                                                                      8] ^
2685                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2686         } while (++t <= 79);
2687         t = 0;
2688         A = HashResultPointer[0];
2689         B = HashResultPointer[1];
2690         C = HashResultPointer[2];
2691         D = HashResultPointer[3];
2692         E = HashResultPointer[4];
2693
2694         do {
2695                 if (t < 20) {
2696                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2697                 } else if (t < 40) {
2698                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2699                 } else if (t < 60) {
2700                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2701                 } else {
2702                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2703                 }
2704                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2705                 E = D;
2706                 D = C;
2707                 C = S(30, B);
2708                 B = A;
2709                 A = TEMP;
2710         } while (++t <= 79);
2711
2712         HashResultPointer[0] += A;
2713         HashResultPointer[1] += B;
2714         HashResultPointer[2] += C;
2715         HashResultPointer[3] += D;
2716         HashResultPointer[4] += E;
2717
2718 }
2719
2720 /**
2721  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2722  * @RandomChallenge: pointer to the entry of host challenge random number array.
2723  * @HashWorking: pointer to the entry of the working hash array.
2724  *
2725  * This routine calculates the working hash array referred by @HashWorking
2726  * from the challenge random numbers associated with the host, referred by
2727  * @RandomChallenge. The result is put into the entry of the working hash
2728  * array and returned by reference through @HashWorking.
2729  **/
2730 static void
2731 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2732 {
2733         *HashWorking = (*RandomChallenge ^ *HashWorking);
2734 }
2735
2736 /**
2737  * lpfc_hba_init - Perform special handling for LC HBA initialization
2738  * @phba: pointer to lpfc hba data structure.
2739  * @hbainit: pointer to an array of unsigned 32-bit integers.
2740  *
2741  * This routine performs the special handling for LC HBA initialization.
2742  **/
2743 void
2744 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2745 {
2746         int t;
2747         uint32_t *HashWorking;
2748         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2749
2750         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2751         if (!HashWorking)
2752                 return;
2753
2754         HashWorking[0] = HashWorking[78] = *pwwnn++;
2755         HashWorking[1] = HashWorking[79] = *pwwnn;
2756
2757         for (t = 0; t < 7; t++)
2758                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2759
2760         lpfc_sha_init(hbainit);
2761         lpfc_sha_iterate(hbainit, HashWorking);
2762         kfree(HashWorking);
2763 }
2764
2765 /**
2766  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2767  * @vport: pointer to a virtual N_Port data structure.
2768  *
2769  * This routine performs the necessary cleanups before deleting the @vport.
2770  * It invokes the discovery state machine to perform necessary state
2771  * transitions and to release the ndlps associated with the @vport. Note,
2772  * the physical port is treated as @vport 0.
2773  **/
2774 void
2775 lpfc_cleanup(struct lpfc_vport *vport)
2776 {
2777         struct lpfc_hba   *phba = vport->phba;
2778         struct lpfc_nodelist *ndlp, *next_ndlp;
2779         int i = 0;
2780
2781         if (phba->link_state > LPFC_LINK_DOWN)
2782                 lpfc_port_link_failure(vport);
2783
2784         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2785                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2786                         ndlp = lpfc_enable_node(vport, ndlp,
2787                                                 NLP_STE_UNUSED_NODE);
2788                         if (!ndlp)
2789                                 continue;
2790                         spin_lock_irq(&phba->ndlp_lock);
2791                         NLP_SET_FREE_REQ(ndlp);
2792                         spin_unlock_irq(&phba->ndlp_lock);
2793                         /* Trigger the release of the ndlp memory */
2794                         lpfc_nlp_put(ndlp);
2795                         continue;
2796                 }
2797                 spin_lock_irq(&phba->ndlp_lock);
2798                 if (NLP_CHK_FREE_REQ(ndlp)) {
2799                         /* The ndlp should not be in memory free mode already */
2800                         spin_unlock_irq(&phba->ndlp_lock);
2801                         continue;
2802                 } else
2803                         /* Indicate request for freeing ndlp memory */
2804                         NLP_SET_FREE_REQ(ndlp);
2805                 spin_unlock_irq(&phba->ndlp_lock);
2806
2807                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2808                     ndlp->nlp_DID == Fabric_DID) {
2809                         /* Just free up ndlp with Fabric_DID for vports */
2810                         lpfc_nlp_put(ndlp);
2811                         continue;
2812                 }
2813
2814                 /* take care of nodes in unused state before the state
2815                  * machine taking action.
2816                  */
2817                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2818                         lpfc_nlp_put(ndlp);
2819                         continue;
2820                 }
2821
2822                 if (ndlp->nlp_type & NLP_FABRIC)
2823                         lpfc_disc_state_machine(vport, ndlp, NULL,
2824                                         NLP_EVT_DEVICE_RECOVERY);
2825
2826                 lpfc_disc_state_machine(vport, ndlp, NULL,
2827                                              NLP_EVT_DEVICE_RM);
2828         }
2829
2830         /* At this point, ALL ndlp's should be gone
2831          * because of the previous NLP_EVT_DEVICE_RM.
2832          * Lets wait for this to happen, if needed.
2833          */
2834         while (!list_empty(&vport->fc_nodes)) {
2835                 if (i++ > 3000) {
2836                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2837                                 "0233 Nodelist not empty\n");
2838                         list_for_each_entry_safe(ndlp, next_ndlp,
2839                                                 &vport->fc_nodes, nlp_listp) {
2840                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2841                                                 LOG_NODE,
2842                                                 "0282 did:x%x ndlp:x%px "
2843                                                 "usgmap:x%x refcnt:%d\n",
2844                                                 ndlp->nlp_DID, (void *)ndlp,
2845                                                 ndlp->nlp_usg_map,
2846                                                 kref_read(&ndlp->kref));
2847                         }
2848                         break;
2849                 }
2850
2851                 /* Wait for any activity on ndlps to settle */
2852                 msleep(10);
2853         }
2854         lpfc_cleanup_vports_rrqs(vport, NULL);
2855 }
2856
2857 /**
2858  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2859  * @vport: pointer to a virtual N_Port data structure.
2860  *
2861  * This routine stops all the timers associated with a @vport. This function
2862  * is invoked before disabling or deleting a @vport. Note that the physical
2863  * port is treated as @vport 0.
2864  **/
2865 void
2866 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2867 {
2868         del_timer_sync(&vport->els_tmofunc);
2869         del_timer_sync(&vport->delayed_disc_tmo);
2870         lpfc_can_disctmo(vport);
2871         return;
2872 }
2873
2874 /**
2875  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2876  * @phba: pointer to lpfc hba data structure.
2877  *
2878  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2879  * caller of this routine should already hold the host lock.
2880  **/
2881 void
2882 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2883 {
2884         /* Clear pending FCF rediscovery wait flag */
2885         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2886
2887         /* Now, try to stop the timer */
2888         del_timer(&phba->fcf.redisc_wait);
2889 }
2890
2891 /**
2892  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2893  * @phba: pointer to lpfc hba data structure.
2894  *
2895  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2896  * checks whether the FCF rediscovery wait timer is pending with the host
2897  * lock held before proceeding with disabling the timer and clearing the
2898  * wait timer pendig flag.
2899  **/
2900 void
2901 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2902 {
2903         spin_lock_irq(&phba->hbalock);
2904         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2905                 /* FCF rediscovery timer already fired or stopped */
2906                 spin_unlock_irq(&phba->hbalock);
2907                 return;
2908         }
2909         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2910         /* Clear failover in progress flags */
2911         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2912         spin_unlock_irq(&phba->hbalock);
2913 }
2914
2915 /**
2916  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2917  * @phba: pointer to lpfc hba data structure.
2918  *
2919  * This routine stops all the timers associated with a HBA. This function is
2920  * invoked before either putting a HBA offline or unloading the driver.
2921  **/
2922 void
2923 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2924 {
2925         if (phba->pport)
2926                 lpfc_stop_vport_timers(phba->pport);
2927         cancel_delayed_work_sync(&phba->eq_delay_work);
2928         del_timer_sync(&phba->sli.mbox_tmo);
2929         del_timer_sync(&phba->fabric_block_timer);
2930         del_timer_sync(&phba->eratt_poll);
2931         del_timer_sync(&phba->hb_tmofunc);
2932         if (phba->sli_rev == LPFC_SLI_REV4) {
2933                 del_timer_sync(&phba->rrq_tmr);
2934                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2935         }
2936         phba->hb_outstanding = 0;
2937
2938         switch (phba->pci_dev_grp) {
2939         case LPFC_PCI_DEV_LP:
2940                 /* Stop any LightPulse device specific driver timers */
2941                 del_timer_sync(&phba->fcp_poll_timer);
2942                 break;
2943         case LPFC_PCI_DEV_OC:
2944                 /* Stop any OneConnect device specific driver timers */
2945                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2946                 break;
2947         default:
2948                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2949                                 "0297 Invalid device group (x%x)\n",
2950                                 phba->pci_dev_grp);
2951                 break;
2952         }
2953         return;
2954 }
2955
2956 /**
2957  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2958  * @phba: pointer to lpfc hba data structure.
2959  *
2960  * This routine marks a HBA's management interface as blocked. Once the HBA's
2961  * management interface is marked as blocked, all the user space access to
2962  * the HBA, whether they are from sysfs interface or libdfc interface will
2963  * all be blocked. The HBA is set to block the management interface when the
2964  * driver prepares the HBA interface for online or offline.
2965  **/
2966 static void
2967 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2968 {
2969         unsigned long iflag;
2970         uint8_t actcmd = MBX_HEARTBEAT;
2971         unsigned long timeout;
2972
2973         spin_lock_irqsave(&phba->hbalock, iflag);
2974         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2975         spin_unlock_irqrestore(&phba->hbalock, iflag);
2976         if (mbx_action == LPFC_MBX_NO_WAIT)
2977                 return;
2978         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2979         spin_lock_irqsave(&phba->hbalock, iflag);
2980         if (phba->sli.mbox_active) {
2981                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2982                 /* Determine how long we might wait for the active mailbox
2983                  * command to be gracefully completed by firmware.
2984                  */
2985                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2986                                 phba->sli.mbox_active) * 1000) + jiffies;
2987         }
2988         spin_unlock_irqrestore(&phba->hbalock, iflag);
2989
2990         /* Wait for the outstnading mailbox command to complete */
2991         while (phba->sli.mbox_active) {
2992                 /* Check active mailbox complete status every 2ms */
2993                 msleep(2);
2994                 if (time_after(jiffies, timeout)) {
2995                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2996                                 "2813 Mgmt IO is Blocked %x "
2997                                 "- mbox cmd %x still active\n",
2998                                 phba->sli.sli_flag, actcmd);
2999                         break;
3000                 }
3001         }
3002 }
3003
3004 /**
3005  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3006  * @phba: pointer to lpfc hba data structure.
3007  *
3008  * Allocate RPIs for all active remote nodes. This is needed whenever
3009  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3010  * is to fixup the temporary rpi assignments.
3011  **/
3012 void
3013 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3014 {
3015         struct lpfc_nodelist  *ndlp, *next_ndlp;
3016         struct lpfc_vport **vports;
3017         int i, rpi;
3018         unsigned long flags;
3019
3020         if (phba->sli_rev != LPFC_SLI_REV4)
3021                 return;
3022
3023         vports = lpfc_create_vport_work_array(phba);
3024         if (vports == NULL)
3025                 return;
3026
3027         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3028                 if (vports[i]->load_flag & FC_UNLOADING)
3029                         continue;
3030
3031                 list_for_each_entry_safe(ndlp, next_ndlp,
3032                                          &vports[i]->fc_nodes,
3033                                          nlp_listp) {
3034                         if (!NLP_CHK_NODE_ACT(ndlp))
3035                                 continue;
3036                         rpi = lpfc_sli4_alloc_rpi(phba);
3037                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3038                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3039                                 NLP_CLR_NODE_ACT(ndlp);
3040                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3041                                 continue;
3042                         }
3043                         ndlp->nlp_rpi = rpi;
3044                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3045                                          LOG_NODE | LOG_DISCOVERY,
3046                                          "0009 Assign RPI x%x to ndlp x%px "
3047                                          "DID:x%06x flg:x%x map:x%x\n",
3048                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3049                                          ndlp->nlp_flag, ndlp->nlp_usg_map);
3050                 }
3051         }
3052         lpfc_destroy_vport_work_array(phba, vports);
3053 }
3054
3055 /**
3056  * lpfc_create_expedite_pool - create expedite pool
3057  * @phba: pointer to lpfc hba data structure.
3058  *
3059  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3060  * to expedite pool. Mark them as expedite.
3061  **/
3062 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3063 {
3064         struct lpfc_sli4_hdw_queue *qp;
3065         struct lpfc_io_buf *lpfc_ncmd;
3066         struct lpfc_io_buf *lpfc_ncmd_next;
3067         struct lpfc_epd_pool *epd_pool;
3068         unsigned long iflag;
3069
3070         epd_pool = &phba->epd_pool;
3071         qp = &phba->sli4_hba.hdwq[0];
3072
3073         spin_lock_init(&epd_pool->lock);
3074         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3075         spin_lock(&epd_pool->lock);
3076         INIT_LIST_HEAD(&epd_pool->list);
3077         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3078                                  &qp->lpfc_io_buf_list_put, list) {
3079                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3080                 lpfc_ncmd->expedite = true;
3081                 qp->put_io_bufs--;
3082                 epd_pool->count++;
3083                 if (epd_pool->count >= XRI_BATCH)
3084                         break;
3085         }
3086         spin_unlock(&epd_pool->lock);
3087         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3088 }
3089
3090 /**
3091  * lpfc_destroy_expedite_pool - destroy expedite pool
3092  * @phba: pointer to lpfc hba data structure.
3093  *
3094  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3095  * of HWQ 0. Clear the mark.
3096  **/
3097 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3098 {
3099         struct lpfc_sli4_hdw_queue *qp;
3100         struct lpfc_io_buf *lpfc_ncmd;
3101         struct lpfc_io_buf *lpfc_ncmd_next;
3102         struct lpfc_epd_pool *epd_pool;
3103         unsigned long iflag;
3104
3105         epd_pool = &phba->epd_pool;
3106         qp = &phba->sli4_hba.hdwq[0];
3107
3108         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3109         spin_lock(&epd_pool->lock);
3110         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3111                                  &epd_pool->list, list) {
3112                 list_move_tail(&lpfc_ncmd->list,
3113                                &qp->lpfc_io_buf_list_put);
3114                 lpfc_ncmd->flags = false;
3115                 qp->put_io_bufs++;
3116                 epd_pool->count--;
3117         }
3118         spin_unlock(&epd_pool->lock);
3119         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3120 }
3121
3122 /**
3123  * lpfc_create_multixri_pools - create multi-XRI pools
3124  * @phba: pointer to lpfc hba data structure.
3125  *
3126  * This routine initialize public, private per HWQ. Then, move XRIs from
3127  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3128  * Initialized.
3129  **/
3130 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3131 {
3132         u32 i, j;
3133         u32 hwq_count;
3134         u32 count_per_hwq;
3135         struct lpfc_io_buf *lpfc_ncmd;
3136         struct lpfc_io_buf *lpfc_ncmd_next;
3137         unsigned long iflag;
3138         struct lpfc_sli4_hdw_queue *qp;
3139         struct lpfc_multixri_pool *multixri_pool;
3140         struct lpfc_pbl_pool *pbl_pool;
3141         struct lpfc_pvt_pool *pvt_pool;
3142
3143         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3144                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3145                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3146                         phba->sli4_hba.io_xri_cnt);
3147
3148         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3149                 lpfc_create_expedite_pool(phba);
3150
3151         hwq_count = phba->cfg_hdw_queue;
3152         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3153
3154         for (i = 0; i < hwq_count; i++) {
3155                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3156
3157                 if (!multixri_pool) {
3158                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3159                                         "1238 Failed to allocate memory for "
3160                                         "multixri_pool\n");
3161
3162                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3163                                 lpfc_destroy_expedite_pool(phba);
3164
3165                         j = 0;
3166                         while (j < i) {
3167                                 qp = &phba->sli4_hba.hdwq[j];
3168                                 kfree(qp->p_multixri_pool);
3169                                 j++;
3170                         }
3171                         phba->cfg_xri_rebalancing = 0;
3172                         return;
3173                 }
3174
3175                 qp = &phba->sli4_hba.hdwq[i];
3176                 qp->p_multixri_pool = multixri_pool;
3177
3178                 multixri_pool->xri_limit = count_per_hwq;
3179                 multixri_pool->rrb_next_hwqid = i;
3180
3181                 /* Deal with public free xri pool */
3182                 pbl_pool = &multixri_pool->pbl_pool;
3183                 spin_lock_init(&pbl_pool->lock);
3184                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3185                 spin_lock(&pbl_pool->lock);
3186                 INIT_LIST_HEAD(&pbl_pool->list);
3187                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3188                                          &qp->lpfc_io_buf_list_put, list) {
3189                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3190                         qp->put_io_bufs--;
3191                         pbl_pool->count++;
3192                 }
3193                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3194                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3195                                 pbl_pool->count, i);
3196                 spin_unlock(&pbl_pool->lock);
3197                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3198
3199                 /* Deal with private free xri pool */
3200                 pvt_pool = &multixri_pool->pvt_pool;
3201                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3202                 pvt_pool->low_watermark = XRI_BATCH;
3203                 spin_lock_init(&pvt_pool->lock);
3204                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3205                 INIT_LIST_HEAD(&pvt_pool->list);
3206                 pvt_pool->count = 0;
3207                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3208         }
3209 }
3210
3211 /**
3212  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3213  * @phba: pointer to lpfc hba data structure.
3214  *
3215  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3216  **/
3217 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3218 {
3219         u32 i;
3220         u32 hwq_count;
3221         struct lpfc_io_buf *lpfc_ncmd;
3222         struct lpfc_io_buf *lpfc_ncmd_next;
3223         unsigned long iflag;
3224         struct lpfc_sli4_hdw_queue *qp;
3225         struct lpfc_multixri_pool *multixri_pool;
3226         struct lpfc_pbl_pool *pbl_pool;
3227         struct lpfc_pvt_pool *pvt_pool;
3228
3229         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3230                 lpfc_destroy_expedite_pool(phba);
3231
3232         if (!(phba->pport->load_flag & FC_UNLOADING))
3233                 lpfc_sli_flush_io_rings(phba);
3234
3235         hwq_count = phba->cfg_hdw_queue;
3236
3237         for (i = 0; i < hwq_count; i++) {
3238                 qp = &phba->sli4_hba.hdwq[i];
3239                 multixri_pool = qp->p_multixri_pool;
3240                 if (!multixri_pool)
3241                         continue;
3242
3243                 qp->p_multixri_pool = NULL;
3244
3245                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3246
3247                 /* Deal with public free xri pool */
3248                 pbl_pool = &multixri_pool->pbl_pool;
3249                 spin_lock(&pbl_pool->lock);
3250
3251                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3252                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3253                                 pbl_pool->count, i);
3254
3255                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3256                                          &pbl_pool->list, list) {
3257                         list_move_tail(&lpfc_ncmd->list,
3258                                        &qp->lpfc_io_buf_list_put);
3259                         qp->put_io_bufs++;
3260                         pbl_pool->count--;
3261                 }
3262
3263                 INIT_LIST_HEAD(&pbl_pool->list);
3264                 pbl_pool->count = 0;
3265
3266                 spin_unlock(&pbl_pool->lock);
3267
3268                 /* Deal with private free xri pool */
3269                 pvt_pool = &multixri_pool->pvt_pool;
3270                 spin_lock(&pvt_pool->lock);
3271
3272                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3273                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3274                                 pvt_pool->count, i);
3275
3276                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3277                                          &pvt_pool->list, list) {
3278                         list_move_tail(&lpfc_ncmd->list,
3279                                        &qp->lpfc_io_buf_list_put);
3280                         qp->put_io_bufs++;
3281                         pvt_pool->count--;
3282                 }
3283
3284                 INIT_LIST_HEAD(&pvt_pool->list);
3285                 pvt_pool->count = 0;
3286
3287                 spin_unlock(&pvt_pool->lock);
3288                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3289
3290                 kfree(multixri_pool);
3291         }
3292 }
3293
3294 /**
3295  * lpfc_online - Initialize and bring a HBA online
3296  * @phba: pointer to lpfc hba data structure.
3297  *
3298  * This routine initializes the HBA and brings a HBA online. During this
3299  * process, the management interface is blocked to prevent user space access
3300  * to the HBA interfering with the driver initialization.
3301  *
3302  * Return codes
3303  *   0 - successful
3304  *   1 - failed
3305  **/
3306 int
3307 lpfc_online(struct lpfc_hba *phba)
3308 {
3309         struct lpfc_vport *vport;
3310         struct lpfc_vport **vports;
3311         int i, error = 0;
3312         bool vpis_cleared = false;
3313
3314         if (!phba)
3315                 return 0;
3316         vport = phba->pport;
3317
3318         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3319                 return 0;
3320
3321         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3322                         "0458 Bring Adapter online\n");
3323
3324         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3325
3326         if (phba->sli_rev == LPFC_SLI_REV4) {
3327                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3328                         lpfc_unblock_mgmt_io(phba);
3329                         return 1;
3330                 }
3331                 spin_lock_irq(&phba->hbalock);
3332                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3333                         vpis_cleared = true;
3334                 spin_unlock_irq(&phba->hbalock);
3335
3336                 /* Reestablish the local initiator port.
3337                  * The offline process destroyed the previous lport.
3338                  */
3339                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3340                                 !phba->nvmet_support) {
3341                         error = lpfc_nvme_create_localport(phba->pport);
3342                         if (error)
3343                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3344                                         "6132 NVME restore reg failed "
3345                                         "on nvmei error x%x\n", error);
3346                 }
3347         } else {
3348                 lpfc_sli_queue_init(phba);
3349                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3350                         lpfc_unblock_mgmt_io(phba);
3351                         return 1;
3352                 }
3353         }
3354
3355         vports = lpfc_create_vport_work_array(phba);
3356         if (vports != NULL) {
3357                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3358                         struct Scsi_Host *shost;
3359                         shost = lpfc_shost_from_vport(vports[i]);
3360                         spin_lock_irq(shost->host_lock);
3361                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3362                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3363                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3364                         if (phba->sli_rev == LPFC_SLI_REV4) {
3365                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3366                                 if ((vpis_cleared) &&
3367                                     (vports[i]->port_type !=
3368                                         LPFC_PHYSICAL_PORT))
3369                                         vports[i]->vpi = 0;
3370                         }
3371                         spin_unlock_irq(shost->host_lock);
3372                 }
3373         }
3374         lpfc_destroy_vport_work_array(phba, vports);
3375
3376         if (phba->cfg_xri_rebalancing)
3377                 lpfc_create_multixri_pools(phba);
3378
3379         lpfc_cpuhp_add(phba);
3380
3381         lpfc_unblock_mgmt_io(phba);
3382         return 0;
3383 }
3384
3385 /**
3386  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3387  * @phba: pointer to lpfc hba data structure.
3388  *
3389  * This routine marks a HBA's management interface as not blocked. Once the
3390  * HBA's management interface is marked as not blocked, all the user space
3391  * access to the HBA, whether they are from sysfs interface or libdfc
3392  * interface will be allowed. The HBA is set to block the management interface
3393  * when the driver prepares the HBA interface for online or offline and then
3394  * set to unblock the management interface afterwards.
3395  **/
3396 void
3397 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3398 {
3399         unsigned long iflag;
3400
3401         spin_lock_irqsave(&phba->hbalock, iflag);
3402         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3403         spin_unlock_irqrestore(&phba->hbalock, iflag);
3404 }
3405
3406 /**
3407  * lpfc_offline_prep - Prepare a HBA to be brought offline
3408  * @phba: pointer to lpfc hba data structure.
3409  *
3410  * This routine is invoked to prepare a HBA to be brought offline. It performs
3411  * unregistration login to all the nodes on all vports and flushes the mailbox
3412  * queue to make it ready to be brought offline.
3413  **/
3414 void
3415 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3416 {
3417         struct lpfc_vport *vport = phba->pport;
3418         struct lpfc_nodelist  *ndlp, *next_ndlp;
3419         struct lpfc_vport **vports;
3420         struct Scsi_Host *shost;
3421         int i;
3422
3423         if (vport->fc_flag & FC_OFFLINE_MODE)
3424                 return;
3425
3426         lpfc_block_mgmt_io(phba, mbx_action);
3427
3428         lpfc_linkdown(phba);
3429
3430         /* Issue an unreg_login to all nodes on all vports */
3431         vports = lpfc_create_vport_work_array(phba);
3432         if (vports != NULL) {
3433                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3434                         if (vports[i]->load_flag & FC_UNLOADING)
3435                                 continue;
3436                         shost = lpfc_shost_from_vport(vports[i]);
3437                         spin_lock_irq(shost->host_lock);
3438                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3439                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3440                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3441                         spin_unlock_irq(shost->host_lock);
3442
3443                         shost = lpfc_shost_from_vport(vports[i]);
3444                         list_for_each_entry_safe(ndlp, next_ndlp,
3445                                                  &vports[i]->fc_nodes,
3446                                                  nlp_listp) {
3447                                 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3448                                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3449                                         /* Driver must assume RPI is invalid for
3450                                          * any unused or inactive node.
3451                                          */
3452                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3453                                         continue;
3454                                 }
3455
3456                                 if (ndlp->nlp_type & NLP_FABRIC) {
3457                                         lpfc_disc_state_machine(vports[i], ndlp,
3458                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3459                                         lpfc_disc_state_machine(vports[i], ndlp,
3460                                                 NULL, NLP_EVT_DEVICE_RM);
3461                                 }
3462                                 spin_lock_irq(shost->host_lock);
3463                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3464                                 spin_unlock_irq(shost->host_lock);
3465                                 /*
3466                                  * Whenever an SLI4 port goes offline, free the
3467                                  * RPI. Get a new RPI when the adapter port
3468                                  * comes back online.
3469                                  */
3470                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3471                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3472                                                  LOG_NODE | LOG_DISCOVERY,
3473                                                  "0011 Free RPI x%x on "
3474                                                  "ndlp:x%px did x%x "
3475                                                  "usgmap:x%x\n",
3476                                                  ndlp->nlp_rpi, ndlp,
3477                                                  ndlp->nlp_DID,
3478                                                  ndlp->nlp_usg_map);
3479                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3480                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3481                                 }
3482                                 lpfc_unreg_rpi(vports[i], ndlp);
3483                         }
3484                 }
3485         }
3486         lpfc_destroy_vport_work_array(phba, vports);
3487
3488         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3489
3490         if (phba->wq)
3491                 flush_workqueue(phba->wq);
3492 }
3493
3494 /**
3495  * lpfc_offline - Bring a HBA offline
3496  * @phba: pointer to lpfc hba data structure.
3497  *
3498  * This routine actually brings a HBA offline. It stops all the timers
3499  * associated with the HBA, brings down the SLI layer, and eventually
3500  * marks the HBA as in offline state for the upper layer protocol.
3501  **/
3502 void
3503 lpfc_offline(struct lpfc_hba *phba)
3504 {
3505         struct Scsi_Host  *shost;
3506         struct lpfc_vport **vports;
3507         int i;
3508
3509         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3510                 return;
3511
3512         /* stop port and all timers associated with this hba */
3513         lpfc_stop_port(phba);
3514
3515         /* Tear down the local and target port registrations.  The
3516          * nvme transports need to cleanup.
3517          */
3518         lpfc_nvmet_destroy_targetport(phba);
3519         lpfc_nvme_destroy_localport(phba->pport);
3520
3521         vports = lpfc_create_vport_work_array(phba);
3522         if (vports != NULL)
3523                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3524                         lpfc_stop_vport_timers(vports[i]);
3525         lpfc_destroy_vport_work_array(phba, vports);
3526         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3527                         "0460 Bring Adapter offline\n");
3528         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3529            now.  */
3530         lpfc_sli_hba_down(phba);
3531         spin_lock_irq(&phba->hbalock);
3532         phba->work_ha = 0;
3533         spin_unlock_irq(&phba->hbalock);
3534         vports = lpfc_create_vport_work_array(phba);
3535         if (vports != NULL)
3536                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3537                         shost = lpfc_shost_from_vport(vports[i]);
3538                         spin_lock_irq(shost->host_lock);
3539                         vports[i]->work_port_events = 0;
3540                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3541                         spin_unlock_irq(shost->host_lock);
3542                 }
3543         lpfc_destroy_vport_work_array(phba, vports);
3544         __lpfc_cpuhp_remove(phba);
3545
3546         if (phba->cfg_xri_rebalancing)
3547                 lpfc_destroy_multixri_pools(phba);
3548 }
3549
3550 /**
3551  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3552  * @phba: pointer to lpfc hba data structure.
3553  *
3554  * This routine is to free all the SCSI buffers and IOCBs from the driver
3555  * list back to kernel. It is called from lpfc_pci_remove_one to free
3556  * the internal resources before the device is removed from the system.
3557  **/
3558 static void
3559 lpfc_scsi_free(struct lpfc_hba *phba)
3560 {
3561         struct lpfc_io_buf *sb, *sb_next;
3562
3563         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3564                 return;
3565
3566         spin_lock_irq(&phba->hbalock);
3567
3568         /* Release all the lpfc_scsi_bufs maintained by this host. */
3569
3570         spin_lock(&phba->scsi_buf_list_put_lock);
3571         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3572                                  list) {
3573                 list_del(&sb->list);
3574                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3575                               sb->dma_handle);
3576                 kfree(sb);
3577                 phba->total_scsi_bufs--;
3578         }
3579         spin_unlock(&phba->scsi_buf_list_put_lock);
3580
3581         spin_lock(&phba->scsi_buf_list_get_lock);
3582         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3583                                  list) {
3584                 list_del(&sb->list);
3585                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3586                               sb->dma_handle);
3587                 kfree(sb);
3588                 phba->total_scsi_bufs--;
3589         }
3590         spin_unlock(&phba->scsi_buf_list_get_lock);
3591         spin_unlock_irq(&phba->hbalock);
3592 }
3593
3594 /**
3595  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3596  * @phba: pointer to lpfc hba data structure.
3597  *
3598  * This routine is to free all the IO buffers and IOCBs from the driver
3599  * list back to kernel. It is called from lpfc_pci_remove_one to free
3600  * the internal resources before the device is removed from the system.
3601  **/
3602 void
3603 lpfc_io_free(struct lpfc_hba *phba)
3604 {
3605         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3606         struct lpfc_sli4_hdw_queue *qp;
3607         int idx;
3608
3609         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3610                 qp = &phba->sli4_hba.hdwq[idx];
3611                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3612                 spin_lock(&qp->io_buf_list_put_lock);
3613                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3614                                          &qp->lpfc_io_buf_list_put,
3615                                          list) {
3616                         list_del(&lpfc_ncmd->list);
3617                         qp->put_io_bufs--;
3618                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3619                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3620                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3621                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3622                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3623                         kfree(lpfc_ncmd);
3624                         qp->total_io_bufs--;
3625                 }
3626                 spin_unlock(&qp->io_buf_list_put_lock);
3627
3628                 spin_lock(&qp->io_buf_list_get_lock);
3629                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3630                                          &qp->lpfc_io_buf_list_get,
3631                                          list) {
3632                         list_del(&lpfc_ncmd->list);
3633                         qp->get_io_bufs--;
3634                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3635                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3636                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3637                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3638                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3639                         kfree(lpfc_ncmd);
3640                         qp->total_io_bufs--;
3641                 }
3642                 spin_unlock(&qp->io_buf_list_get_lock);
3643         }
3644 }
3645
3646 /**
3647  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3648  * @phba: pointer to lpfc hba data structure.
3649  *
3650  * This routine first calculates the sizes of the current els and allocated
3651  * scsi sgl lists, and then goes through all sgls to updates the physical
3652  * XRIs assigned due to port function reset. During port initialization, the
3653  * current els and allocated scsi sgl lists are 0s.
3654  *
3655  * Return codes
3656  *   0 - successful (for now, it always returns 0)
3657  **/
3658 int
3659 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3660 {
3661         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3662         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3663         LIST_HEAD(els_sgl_list);
3664         int rc;
3665
3666         /*
3667          * update on pci function's els xri-sgl list
3668          */
3669         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3670
3671         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3672                 /* els xri-sgl expanded */
3673                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3674                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3675                                 "3157 ELS xri-sgl count increased from "
3676                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3677                                 els_xri_cnt);
3678                 /* allocate the additional els sgls */
3679                 for (i = 0; i < xri_cnt; i++) {
3680                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3681                                              GFP_KERNEL);
3682                         if (sglq_entry == NULL) {
3683                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3684                                                 "2562 Failure to allocate an "
3685                                                 "ELS sgl entry:%d\n", i);
3686                                 rc = -ENOMEM;
3687                                 goto out_free_mem;
3688                         }
3689                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3690                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3691                                                            &sglq_entry->phys);
3692                         if (sglq_entry->virt == NULL) {
3693                                 kfree(sglq_entry);
3694                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3695                                                 "2563 Failure to allocate an "
3696                                                 "ELS mbuf:%d\n", i);
3697                                 rc = -ENOMEM;
3698                                 goto out_free_mem;
3699                         }
3700                         sglq_entry->sgl = sglq_entry->virt;
3701                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3702                         sglq_entry->state = SGL_FREED;
3703                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3704                 }
3705                 spin_lock_irq(&phba->hbalock);
3706                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3707                 list_splice_init(&els_sgl_list,
3708                                  &phba->sli4_hba.lpfc_els_sgl_list);
3709                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3710                 spin_unlock_irq(&phba->hbalock);
3711         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3712                 /* els xri-sgl shrinked */
3713                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3714                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3715                                 "3158 ELS xri-sgl count decreased from "
3716                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3717                                 els_xri_cnt);
3718                 spin_lock_irq(&phba->hbalock);
3719                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3720                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3721                                  &els_sgl_list);
3722                 /* release extra els sgls from list */
3723                 for (i = 0; i < xri_cnt; i++) {
3724                         list_remove_head(&els_sgl_list,
3725                                          sglq_entry, struct lpfc_sglq, list);
3726                         if (sglq_entry) {
3727                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3728                                                  sglq_entry->phys);
3729                                 kfree(sglq_entry);
3730                         }
3731                 }
3732                 list_splice_init(&els_sgl_list,
3733                                  &phba->sli4_hba.lpfc_els_sgl_list);
3734                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3735                 spin_unlock_irq(&phba->hbalock);
3736         } else
3737                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3738                                 "3163 ELS xri-sgl count unchanged: %d\n",
3739                                 els_xri_cnt);
3740         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3741
3742         /* update xris to els sgls on the list */
3743         sglq_entry = NULL;
3744         sglq_entry_next = NULL;
3745         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3746                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3747                 lxri = lpfc_sli4_next_xritag(phba);
3748                 if (lxri == NO_XRI) {
3749                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3750                                         "2400 Failed to allocate xri for "
3751                                         "ELS sgl\n");
3752                         rc = -ENOMEM;
3753                         goto out_free_mem;
3754                 }
3755                 sglq_entry->sli4_lxritag = lxri;
3756                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3757         }
3758         return 0;
3759
3760 out_free_mem:
3761         lpfc_free_els_sgl_list(phba);
3762         return rc;
3763 }
3764
3765 /**
3766  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3767  * @phba: pointer to lpfc hba data structure.
3768  *
3769  * This routine first calculates the sizes of the current els and allocated
3770  * scsi sgl lists, and then goes through all sgls to updates the physical
3771  * XRIs assigned due to port function reset. During port initialization, the
3772  * current els and allocated scsi sgl lists are 0s.
3773  *
3774  * Return codes
3775  *   0 - successful (for now, it always returns 0)
3776  **/
3777 int
3778 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3779 {
3780         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3781         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3782         uint16_t nvmet_xri_cnt;
3783         LIST_HEAD(nvmet_sgl_list);
3784         int rc;
3785
3786         /*
3787          * update on pci function's nvmet xri-sgl list
3788          */
3789         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3790
3791         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3792         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3793         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3794                 /* els xri-sgl expanded */
3795                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3796                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3797                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3798                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3799                 /* allocate the additional nvmet sgls */
3800                 for (i = 0; i < xri_cnt; i++) {
3801                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3802                                              GFP_KERNEL);
3803                         if (sglq_entry == NULL) {
3804                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3805                                                 "6303 Failure to allocate an "
3806                                                 "NVMET sgl entry:%d\n", i);
3807                                 rc = -ENOMEM;
3808                                 goto out_free_mem;
3809                         }
3810                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3811                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3812                                                            &sglq_entry->phys);
3813                         if (sglq_entry->virt == NULL) {
3814                                 kfree(sglq_entry);
3815                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3816                                                 "6304 Failure to allocate an "
3817                                                 "NVMET buf:%d\n", i);
3818                                 rc = -ENOMEM;
3819                                 goto out_free_mem;
3820                         }
3821                         sglq_entry->sgl = sglq_entry->virt;
3822                         memset(sglq_entry->sgl, 0,
3823                                phba->cfg_sg_dma_buf_size);
3824                         sglq_entry->state = SGL_FREED;
3825                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3826                 }
3827                 spin_lock_irq(&phba->hbalock);
3828                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3829                 list_splice_init(&nvmet_sgl_list,
3830                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3831                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3832                 spin_unlock_irq(&phba->hbalock);
3833         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3834                 /* nvmet xri-sgl shrunk */
3835                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3836                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3837                                 "6305 NVMET xri-sgl count decreased from "
3838                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3839                                 nvmet_xri_cnt);
3840                 spin_lock_irq(&phba->hbalock);
3841                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3842                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3843                                  &nvmet_sgl_list);
3844                 /* release extra nvmet sgls from list */
3845                 for (i = 0; i < xri_cnt; i++) {
3846                         list_remove_head(&nvmet_sgl_list,
3847                                          sglq_entry, struct lpfc_sglq, list);
3848                         if (sglq_entry) {
3849                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3850                                                     sglq_entry->phys);
3851                                 kfree(sglq_entry);
3852                         }
3853                 }
3854                 list_splice_init(&nvmet_sgl_list,
3855                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3856                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3857                 spin_unlock_irq(&phba->hbalock);
3858         } else
3859                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3860                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3861                                 nvmet_xri_cnt);
3862         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3863
3864         /* update xris to nvmet sgls on the list */
3865         sglq_entry = NULL;
3866         sglq_entry_next = NULL;
3867         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3868                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3869                 lxri = lpfc_sli4_next_xritag(phba);
3870                 if (lxri == NO_XRI) {
3871                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3872                                         "6307 Failed to allocate xri for "
3873                                         "NVMET sgl\n");
3874                         rc = -ENOMEM;
3875                         goto out_free_mem;
3876                 }
3877                 sglq_entry->sli4_lxritag = lxri;
3878                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3879         }
3880         return 0;
3881
3882 out_free_mem:
3883         lpfc_free_nvmet_sgl_list(phba);
3884         return rc;
3885 }
3886
3887 int
3888 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3889 {
3890         LIST_HEAD(blist);
3891         struct lpfc_sli4_hdw_queue *qp;
3892         struct lpfc_io_buf *lpfc_cmd;
3893         struct lpfc_io_buf *iobufp, *prev_iobufp;
3894         int idx, cnt, xri, inserted;
3895
3896         cnt = 0;
3897         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3898                 qp = &phba->sli4_hba.hdwq[idx];
3899                 spin_lock_irq(&qp->io_buf_list_get_lock);
3900                 spin_lock(&qp->io_buf_list_put_lock);
3901
3902                 /* Take everything off the get and put lists */
3903                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3904                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3905                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3906                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3907                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3908                 qp->get_io_bufs = 0;
3909                 qp->put_io_bufs = 0;
3910                 qp->total_io_bufs = 0;
3911                 spin_unlock(&qp->io_buf_list_put_lock);
3912                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3913         }
3914
3915         /*
3916          * Take IO buffers off blist and put on cbuf sorted by XRI.
3917          * This is because POST_SGL takes a sequential range of XRIs
3918          * to post to the firmware.
3919          */
3920         for (idx = 0; idx < cnt; idx++) {
3921                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3922                 if (!lpfc_cmd)
3923                         return cnt;
3924                 if (idx == 0) {
3925                         list_add_tail(&lpfc_cmd->list, cbuf);
3926                         continue;
3927                 }
3928                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3929                 inserted = 0;
3930                 prev_iobufp = NULL;
3931                 list_for_each_entry(iobufp, cbuf, list) {
3932                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3933                                 if (prev_iobufp)
3934                                         list_add(&lpfc_cmd->list,
3935                                                  &prev_iobufp->list);
3936                                 else
3937                                         list_add(&lpfc_cmd->list, cbuf);
3938                                 inserted = 1;
3939                                 break;
3940                         }
3941                         prev_iobufp = iobufp;
3942                 }
3943                 if (!inserted)
3944                         list_add_tail(&lpfc_cmd->list, cbuf);
3945         }
3946         return cnt;
3947 }
3948
3949 int
3950 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3951 {
3952         struct lpfc_sli4_hdw_queue *qp;
3953         struct lpfc_io_buf *lpfc_cmd;
3954         int idx, cnt;
3955
3956         qp = phba->sli4_hba.hdwq;
3957         cnt = 0;
3958         while (!list_empty(cbuf)) {
3959                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3960                         list_remove_head(cbuf, lpfc_cmd,
3961                                          struct lpfc_io_buf, list);
3962                         if (!lpfc_cmd)
3963                                 return cnt;
3964                         cnt++;
3965                         qp = &phba->sli4_hba.hdwq[idx];
3966                         lpfc_cmd->hdwq_no = idx;
3967                         lpfc_cmd->hdwq = qp;
3968                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3969                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3970                         spin_lock(&qp->io_buf_list_put_lock);
3971                         list_add_tail(&lpfc_cmd->list,
3972                                       &qp->lpfc_io_buf_list_put);
3973                         qp->put_io_bufs++;
3974                         qp->total_io_bufs++;
3975                         spin_unlock(&qp->io_buf_list_put_lock);
3976                 }
3977         }
3978         return cnt;
3979 }
3980
3981 /**
3982  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3983  * @phba: pointer to lpfc hba data structure.
3984  *
3985  * This routine first calculates the sizes of the current els and allocated
3986  * scsi sgl lists, and then goes through all sgls to updates the physical
3987  * XRIs assigned due to port function reset. During port initialization, the
3988  * current els and allocated scsi sgl lists are 0s.
3989  *
3990  * Return codes
3991  *   0 - successful (for now, it always returns 0)
3992  **/
3993 int
3994 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3995 {
3996         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
3997         uint16_t i, lxri, els_xri_cnt;
3998         uint16_t io_xri_cnt, io_xri_max;
3999         LIST_HEAD(io_sgl_list);
4000         int rc, cnt;
4001
4002         /*
4003          * update on pci function's allocated nvme xri-sgl list
4004          */
4005
4006         /* maximum number of xris available for nvme buffers */
4007         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4008         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4009         phba->sli4_hba.io_xri_max = io_xri_max;
4010
4011         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4012                         "6074 Current allocated XRI sgl count:%d, "
4013                         "maximum XRI count:%d\n",
4014                         phba->sli4_hba.io_xri_cnt,
4015                         phba->sli4_hba.io_xri_max);
4016
4017         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4018
4019         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4020                 /* max nvme xri shrunk below the allocated nvme buffers */
4021                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4022                                         phba->sli4_hba.io_xri_max;
4023                 /* release the extra allocated nvme buffers */
4024                 for (i = 0; i < io_xri_cnt; i++) {
4025                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4026                                          struct lpfc_io_buf, list);
4027                         if (lpfc_ncmd) {
4028                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4029                                               lpfc_ncmd->data,
4030                                               lpfc_ncmd->dma_handle);
4031                                 kfree(lpfc_ncmd);
4032                         }
4033                 }
4034                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4035         }
4036
4037         /* update xris associated to remaining allocated nvme buffers */
4038         lpfc_ncmd = NULL;
4039         lpfc_ncmd_next = NULL;
4040         phba->sli4_hba.io_xri_cnt = cnt;
4041         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4042                                  &io_sgl_list, list) {
4043                 lxri = lpfc_sli4_next_xritag(phba);
4044                 if (lxri == NO_XRI) {
4045                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4046                                         "6075 Failed to allocate xri for "
4047                                         "nvme buffer\n");
4048                         rc = -ENOMEM;
4049                         goto out_free_mem;
4050                 }
4051                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4052                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4053         }
4054         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4055         return 0;
4056
4057 out_free_mem:
4058         lpfc_io_free(phba);
4059         return rc;
4060 }
4061
4062 /**
4063  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4064  * @vport: The virtual port for which this call being executed.
4065  * @num_to_allocate: The requested number of buffers to allocate.
4066  *
4067  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4068  * the nvme buffer contains all the necessary information needed to initiate
4069  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4070  * them on a list, it post them to the port by using SGL block post.
4071  *
4072  * Return codes:
4073  *   int - number of IO buffers that were allocated and posted.
4074  *   0 = failure, less than num_to_alloc is a partial failure.
4075  **/
4076 int
4077 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4078 {
4079         struct lpfc_io_buf *lpfc_ncmd;
4080         struct lpfc_iocbq *pwqeq;
4081         uint16_t iotag, lxri = 0;
4082         int bcnt, num_posted;
4083         LIST_HEAD(prep_nblist);
4084         LIST_HEAD(post_nblist);
4085         LIST_HEAD(nvme_nblist);
4086
4087         phba->sli4_hba.io_xri_cnt = 0;
4088         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4089                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4090                 if (!lpfc_ncmd)
4091                         break;
4092                 /*
4093                  * Get memory from the pci pool to map the virt space to
4094                  * pci bus space for an I/O. The DMA buffer includes the
4095                  * number of SGE's necessary to support the sg_tablesize.
4096                  */
4097                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4098                                                   GFP_KERNEL,
4099                                                   &lpfc_ncmd->dma_handle);
4100                 if (!lpfc_ncmd->data) {
4101                         kfree(lpfc_ncmd);
4102                         break;
4103                 }
4104
4105                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4106                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4107                 } else {
4108                         /*
4109                          * 4K Page alignment is CRITICAL to BlockGuard, double
4110                          * check to be sure.
4111                          */
4112                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4113                             (((unsigned long)(lpfc_ncmd->data) &
4114                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4115                                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4116                                                 "3369 Memory alignment err: "
4117                                                 "addr=%lx\n",
4118                                                 (unsigned long)lpfc_ncmd->data);
4119                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4120                                               lpfc_ncmd->data,
4121                                               lpfc_ncmd->dma_handle);
4122                                 kfree(lpfc_ncmd);
4123                                 break;
4124                         }
4125                 }
4126
4127                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4128
4129                 lxri = lpfc_sli4_next_xritag(phba);
4130                 if (lxri == NO_XRI) {
4131                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4132                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4133                         kfree(lpfc_ncmd);
4134                         break;
4135                 }
4136                 pwqeq = &lpfc_ncmd->cur_iocbq;
4137
4138                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4139                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4140                 if (iotag == 0) {
4141                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4142                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4143                         kfree(lpfc_ncmd);
4144                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4145                                         "6121 Failed to allocate IOTAG for"
4146                                         " XRI:0x%x\n", lxri);
4147                         lpfc_sli4_free_xri(phba, lxri);
4148                         break;
4149                 }
4150                 pwqeq->sli4_lxritag = lxri;
4151                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4152                 pwqeq->context1 = lpfc_ncmd;
4153
4154                 /* Initialize local short-hand pointers. */
4155                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4156                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4157                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4158                 spin_lock_init(&lpfc_ncmd->buf_lock);
4159
4160                 /* add the nvme buffer to a post list */
4161                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4162                 phba->sli4_hba.io_xri_cnt++;
4163         }
4164         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4165                         "6114 Allocate %d out of %d requested new NVME "
4166                         "buffers\n", bcnt, num_to_alloc);
4167
4168         /* post the list of nvme buffer sgls to port if available */
4169         if (!list_empty(&post_nblist))
4170                 num_posted = lpfc_sli4_post_io_sgl_list(
4171                                 phba, &post_nblist, bcnt);
4172         else
4173                 num_posted = 0;
4174
4175         return num_posted;
4176 }
4177
4178 static uint64_t
4179 lpfc_get_wwpn(struct lpfc_hba *phba)
4180 {
4181         uint64_t wwn;
4182         int rc;
4183         LPFC_MBOXQ_t *mboxq;
4184         MAILBOX_t *mb;
4185
4186         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4187                                                 GFP_KERNEL);
4188         if (!mboxq)
4189                 return (uint64_t)-1;
4190
4191         /* First get WWN of HBA instance */
4192         lpfc_read_nv(phba, mboxq);
4193         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4194         if (rc != MBX_SUCCESS) {
4195                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4196                                 "6019 Mailbox failed , mbxCmd x%x "
4197                                 "READ_NV, mbxStatus x%x\n",
4198                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4199                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4200                 mempool_free(mboxq, phba->mbox_mem_pool);
4201                 return (uint64_t) -1;
4202         }
4203         mb = &mboxq->u.mb;
4204         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4205         /* wwn is WWPN of HBA instance */
4206         mempool_free(mboxq, phba->mbox_mem_pool);
4207         if (phba->sli_rev == LPFC_SLI_REV4)
4208                 return be64_to_cpu(wwn);
4209         else
4210                 return rol64(wwn, 32);
4211 }
4212
4213 /**
4214  * lpfc_create_port - Create an FC port
4215  * @phba: pointer to lpfc hba data structure.
4216  * @instance: a unique integer ID to this FC port.
4217  * @dev: pointer to the device data structure.
4218  *
4219  * This routine creates a FC port for the upper layer protocol. The FC port
4220  * can be created on top of either a physical port or a virtual port provided
4221  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4222  * and associates the FC port created before adding the shost into the SCSI
4223  * layer.
4224  *
4225  * Return codes
4226  *   @vport - pointer to the virtual N_Port data structure.
4227  *   NULL - port create failed.
4228  **/
4229 struct lpfc_vport *
4230 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4231 {
4232         struct lpfc_vport *vport;
4233         struct Scsi_Host  *shost = NULL;
4234         struct scsi_host_template *template;
4235         int error = 0;
4236         int i;
4237         uint64_t wwn;
4238         bool use_no_reset_hba = false;
4239         int rc;
4240
4241         if (lpfc_no_hba_reset_cnt) {
4242                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4243                     dev == &phba->pcidev->dev) {
4244                         /* Reset the port first */
4245                         lpfc_sli_brdrestart(phba);
4246                         rc = lpfc_sli_chipset_init(phba);
4247                         if (rc)
4248                                 return NULL;
4249                 }
4250                 wwn = lpfc_get_wwpn(phba);
4251         }
4252
4253         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4254                 if (wwn == lpfc_no_hba_reset[i]) {
4255                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4256                                         "6020 Setting use_no_reset port=%llx\n",
4257                                         wwn);
4258                         use_no_reset_hba = true;
4259                         break;
4260                 }
4261         }
4262
4263         /* Seed template for SCSI host registration */
4264         if (dev == &phba->pcidev->dev) {
4265                 template = &phba->port_template;
4266
4267                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4268                         /* Seed physical port template */
4269                         memcpy(template, &lpfc_template, sizeof(*template));
4270
4271                         if (use_no_reset_hba) {
4272                                 /* template is for a no reset SCSI Host */
4273                                 template->max_sectors = 0xffff;
4274                                 template->eh_host_reset_handler = NULL;
4275                         }
4276
4277                         /* Template for all vports this physical port creates */
4278                         memcpy(&phba->vport_template, &lpfc_template,
4279                                sizeof(*template));
4280                         phba->vport_template.max_sectors = 0xffff;
4281                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4282                         phba->vport_template.eh_bus_reset_handler = NULL;
4283                         phba->vport_template.eh_host_reset_handler = NULL;
4284                         phba->vport_template.vendor_id = 0;
4285
4286                         /* Initialize the host templates with updated value */
4287                         if (phba->sli_rev == LPFC_SLI_REV4) {
4288                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4289                                 phba->vport_template.sg_tablesize =
4290                                         phba->cfg_scsi_seg_cnt;
4291                         } else {
4292                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4293                                 phba->vport_template.sg_tablesize =
4294                                         phba->cfg_sg_seg_cnt;
4295                         }
4296
4297                 } else {
4298                         /* NVMET is for physical port only */
4299                         memcpy(template, &lpfc_template_nvme,
4300                                sizeof(*template));
4301                 }
4302         } else {
4303                 template = &phba->vport_template;
4304         }
4305
4306         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4307         if (!shost)
4308                 goto out;
4309
4310         vport = (struct lpfc_vport *) shost->hostdata;
4311         vport->phba = phba;
4312         vport->load_flag |= FC_LOADING;
4313         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4314         vport->fc_rscn_flush = 0;
4315         lpfc_get_vport_cfgparam(vport);
4316
4317         /* Adjust value in vport */
4318         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4319
4320         shost->unique_id = instance;
4321         shost->max_id = LPFC_MAX_TARGET;
4322         shost->max_lun = vport->cfg_max_luns;
4323         shost->this_id = -1;
4324         shost->max_cmd_len = 16;
4325
4326         if (phba->sli_rev == LPFC_SLI_REV4) {
4327                 if (!phba->cfg_fcp_mq_threshold ||
4328                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4329                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4330
4331                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4332                                             phba->cfg_fcp_mq_threshold);
4333
4334                 shost->dma_boundary =
4335                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4336
4337                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4338                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4339                 else
4340                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4341         } else
4342                 /* SLI-3 has a limited number of hardware queues (3),
4343                  * thus there is only one for FCP processing.
4344                  */
4345                 shost->nr_hw_queues = 1;
4346
4347         /*
4348          * Set initial can_queue value since 0 is no longer supported and
4349          * scsi_add_host will fail. This will be adjusted later based on the
4350          * max xri value determined in hba setup.
4351          */
4352         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4353         if (dev != &phba->pcidev->dev) {
4354                 shost->transportt = lpfc_vport_transport_template;
4355                 vport->port_type = LPFC_NPIV_PORT;
4356         } else {
4357                 shost->transportt = lpfc_transport_template;
4358                 vport->port_type = LPFC_PHYSICAL_PORT;
4359         }
4360
4361         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4362                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4363                         "SEGcnt %d/%d\n",
4364                         vport->port_type, shost->sg_tablesize,
4365                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4366
4367         /* Initialize all internally managed lists. */
4368         INIT_LIST_HEAD(&vport->fc_nodes);
4369         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4370         spin_lock_init(&vport->work_port_lock);
4371
4372         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4373
4374         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4375
4376         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4377
4378         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4379                 lpfc_setup_bg(phba, shost);
4380
4381         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4382         if (error)
4383                 goto out_put_shost;
4384
4385         spin_lock_irq(&phba->port_list_lock);
4386         list_add_tail(&vport->listentry, &phba->port_list);
4387         spin_unlock_irq(&phba->port_list_lock);
4388         return vport;
4389
4390 out_put_shost:
4391         scsi_host_put(shost);
4392 out:
4393         return NULL;
4394 }
4395
4396 /**
4397  * destroy_port -  destroy an FC port
4398  * @vport: pointer to an lpfc virtual N_Port data structure.
4399  *
4400  * This routine destroys a FC port from the upper layer protocol. All the
4401  * resources associated with the port are released.
4402  **/
4403 void
4404 destroy_port(struct lpfc_vport *vport)
4405 {
4406         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4407         struct lpfc_hba  *phba = vport->phba;
4408
4409         lpfc_debugfs_terminate(vport);
4410         fc_remove_host(shost);
4411         scsi_remove_host(shost);
4412
4413         spin_lock_irq(&phba->port_list_lock);
4414         list_del_init(&vport->listentry);
4415         spin_unlock_irq(&phba->port_list_lock);
4416
4417         lpfc_cleanup(vport);
4418         return;
4419 }
4420
4421 /**
4422  * lpfc_get_instance - Get a unique integer ID
4423  *
4424  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4425  * uses the kernel idr facility to perform the task.
4426  *
4427  * Return codes:
4428  *   instance - a unique integer ID allocated as the new instance.
4429  *   -1 - lpfc get instance failed.
4430  **/
4431 int
4432 lpfc_get_instance(void)
4433 {
4434         int ret;
4435
4436         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4437         return ret < 0 ? -1 : ret;
4438 }
4439
4440 /**
4441  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4442  * @shost: pointer to SCSI host data structure.
4443  * @time: elapsed time of the scan in jiffies.
4444  *
4445  * This routine is called by the SCSI layer with a SCSI host to determine
4446  * whether the scan host is finished.
4447  *
4448  * Note: there is no scan_start function as adapter initialization will have
4449  * asynchronously kicked off the link initialization.
4450  *
4451  * Return codes
4452  *   0 - SCSI host scan is not over yet.
4453  *   1 - SCSI host scan is over.
4454  **/
4455 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4456 {
4457         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4458         struct lpfc_hba   *phba = vport->phba;
4459         int stat = 0;
4460
4461         spin_lock_irq(shost->host_lock);
4462
4463         if (vport->load_flag & FC_UNLOADING) {
4464                 stat = 1;
4465                 goto finished;
4466         }
4467         if (time >= msecs_to_jiffies(30 * 1000)) {
4468                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4469                                 "0461 Scanning longer than 30 "
4470                                 "seconds.  Continuing initialization\n");
4471                 stat = 1;
4472                 goto finished;
4473         }
4474         if (time >= msecs_to_jiffies(15 * 1000) &&
4475             phba->link_state <= LPFC_LINK_DOWN) {
4476                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4477                                 "0465 Link down longer than 15 "
4478                                 "seconds.  Continuing initialization\n");
4479                 stat = 1;
4480                 goto finished;
4481         }
4482
4483         if (vport->port_state != LPFC_VPORT_READY)
4484                 goto finished;
4485         if (vport->num_disc_nodes || vport->fc_prli_sent)
4486                 goto finished;
4487         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4488                 goto finished;
4489         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4490                 goto finished;
4491
4492         stat = 1;
4493
4494 finished:
4495         spin_unlock_irq(shost->host_lock);
4496         return stat;
4497 }
4498
4499 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4500 {
4501         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4502         struct lpfc_hba   *phba = vport->phba;
4503
4504         fc_host_supported_speeds(shost) = 0;
4505         if (phba->lmt & LMT_128Gb)
4506                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4507         if (phba->lmt & LMT_64Gb)
4508                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4509         if (phba->lmt & LMT_32Gb)
4510                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4511         if (phba->lmt & LMT_16Gb)
4512                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4513         if (phba->lmt & LMT_10Gb)
4514                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4515         if (phba->lmt & LMT_8Gb)
4516                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4517         if (phba->lmt & LMT_4Gb)
4518                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4519         if (phba->lmt & LMT_2Gb)
4520                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4521         if (phba->lmt & LMT_1Gb)
4522                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4523 }
4524
4525 /**
4526  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4527  * @shost: pointer to SCSI host data structure.
4528  *
4529  * This routine initializes a given SCSI host attributes on a FC port. The
4530  * SCSI host can be either on top of a physical port or a virtual port.
4531  **/
4532 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4533 {
4534         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4535         struct lpfc_hba   *phba = vport->phba;
4536         /*
4537          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4538          */
4539
4540         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4541         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4542         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4543
4544         memset(fc_host_supported_fc4s(shost), 0,
4545                sizeof(fc_host_supported_fc4s(shost)));
4546         fc_host_supported_fc4s(shost)[2] = 1;
4547         fc_host_supported_fc4s(shost)[7] = 1;
4548
4549         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4550                                  sizeof fc_host_symbolic_name(shost));
4551
4552         lpfc_host_supported_speeds_set(shost);
4553
4554         fc_host_maxframe_size(shost) =
4555                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4556                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4557
4558         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4559
4560         /* This value is also unchanging */
4561         memset(fc_host_active_fc4s(shost), 0,
4562                sizeof(fc_host_active_fc4s(shost)));
4563         fc_host_active_fc4s(shost)[2] = 1;
4564         fc_host_active_fc4s(shost)[7] = 1;
4565
4566         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4567         spin_lock_irq(shost->host_lock);
4568         vport->load_flag &= ~FC_LOADING;
4569         spin_unlock_irq(shost->host_lock);
4570 }
4571
4572 /**
4573  * lpfc_stop_port_s3 - Stop SLI3 device port
4574  * @phba: pointer to lpfc hba data structure.
4575  *
4576  * This routine is invoked to stop an SLI3 device port, it stops the device
4577  * from generating interrupts and stops the device driver's timers for the
4578  * device.
4579  **/
4580 static void
4581 lpfc_stop_port_s3(struct lpfc_hba *phba)
4582 {
4583         /* Clear all interrupt enable conditions */
4584         writel(0, phba->HCregaddr);
4585         readl(phba->HCregaddr); /* flush */
4586         /* Clear all pending interrupts */
4587         writel(0xffffffff, phba->HAregaddr);
4588         readl(phba->HAregaddr); /* flush */
4589
4590         /* Reset some HBA SLI setup states */
4591         lpfc_stop_hba_timers(phba);
4592         phba->pport->work_port_events = 0;
4593 }
4594
4595 /**
4596  * lpfc_stop_port_s4 - Stop SLI4 device port
4597  * @phba: pointer to lpfc hba data structure.
4598  *
4599  * This routine is invoked to stop an SLI4 device port, it stops the device
4600  * from generating interrupts and stops the device driver's timers for the
4601  * device.
4602  **/
4603 static void
4604 lpfc_stop_port_s4(struct lpfc_hba *phba)
4605 {
4606         /* Reset some HBA SLI4 setup states */
4607         lpfc_stop_hba_timers(phba);
4608         if (phba->pport)
4609                 phba->pport->work_port_events = 0;
4610         phba->sli4_hba.intr_enable = 0;
4611 }
4612
4613 /**
4614  * lpfc_stop_port - Wrapper function for stopping hba port
4615  * @phba: Pointer to HBA context object.
4616  *
4617  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4618  * the API jump table function pointer from the lpfc_hba struct.
4619  **/
4620 void
4621 lpfc_stop_port(struct lpfc_hba *phba)
4622 {
4623         phba->lpfc_stop_port(phba);
4624
4625         if (phba->wq)
4626                 flush_workqueue(phba->wq);
4627 }
4628
4629 /**
4630  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4631  * @phba: Pointer to hba for which this call is being executed.
4632  *
4633  * This routine starts the timer waiting for the FCF rediscovery to complete.
4634  **/
4635 void
4636 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4637 {
4638         unsigned long fcf_redisc_wait_tmo =
4639                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4640         /* Start fcf rediscovery wait period timer */
4641         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4642         spin_lock_irq(&phba->hbalock);
4643         /* Allow action to new fcf asynchronous event */
4644         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4645         /* Mark the FCF rediscovery pending state */
4646         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4647         spin_unlock_irq(&phba->hbalock);
4648 }
4649
4650 /**
4651  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4652  * @ptr: Map to lpfc_hba data structure pointer.
4653  *
4654  * This routine is invoked when waiting for FCF table rediscover has been
4655  * timed out. If new FCF record(s) has (have) been discovered during the
4656  * wait period, a new FCF event shall be added to the FCOE async event
4657  * list, and then worker thread shall be waked up for processing from the
4658  * worker thread context.
4659  **/
4660 static void
4661 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4662 {
4663         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4664
4665         /* Don't send FCF rediscovery event if timer cancelled */
4666         spin_lock_irq(&phba->hbalock);
4667         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4668                 spin_unlock_irq(&phba->hbalock);
4669                 return;
4670         }
4671         /* Clear FCF rediscovery timer pending flag */
4672         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4673         /* FCF rediscovery event to worker thread */
4674         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4675         spin_unlock_irq(&phba->hbalock);
4676         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4677                         "2776 FCF rediscover quiescent timer expired\n");
4678         /* wake up worker thread */
4679         lpfc_worker_wake_up(phba);
4680 }
4681
4682 /**
4683  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4684  * @phba: pointer to lpfc hba data structure.
4685  * @acqe_link: pointer to the async link completion queue entry.
4686  *
4687  * This routine is to parse the SLI4 link-attention link fault code.
4688  **/
4689 static void
4690 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4691                            struct lpfc_acqe_link *acqe_link)
4692 {
4693         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4694         case LPFC_ASYNC_LINK_FAULT_NONE:
4695         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4696         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4697         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4698                 break;
4699         default:
4700                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4701                                 "0398 Unknown link fault code: x%x\n",
4702                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4703                 break;
4704         }
4705 }
4706
4707 /**
4708  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4709  * @phba: pointer to lpfc hba data structure.
4710  * @acqe_link: pointer to the async link completion queue entry.
4711  *
4712  * This routine is to parse the SLI4 link attention type and translate it
4713  * into the base driver's link attention type coding.
4714  *
4715  * Return: Link attention type in terms of base driver's coding.
4716  **/
4717 static uint8_t
4718 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4719                           struct lpfc_acqe_link *acqe_link)
4720 {
4721         uint8_t att_type;
4722
4723         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4724         case LPFC_ASYNC_LINK_STATUS_DOWN:
4725         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4726                 att_type = LPFC_ATT_LINK_DOWN;
4727                 break;
4728         case LPFC_ASYNC_LINK_STATUS_UP:
4729                 /* Ignore physical link up events - wait for logical link up */
4730                 att_type = LPFC_ATT_RESERVED;
4731                 break;
4732         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4733                 att_type = LPFC_ATT_LINK_UP;
4734                 break;
4735         default:
4736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4737                                 "0399 Invalid link attention type: x%x\n",
4738                                 bf_get(lpfc_acqe_link_status, acqe_link));
4739                 att_type = LPFC_ATT_RESERVED;
4740                 break;
4741         }
4742         return att_type;
4743 }
4744
4745 /**
4746  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4747  * @phba: pointer to lpfc hba data structure.
4748  *
4749  * This routine is to get an SLI3 FC port's link speed in Mbps.
4750  *
4751  * Return: link speed in terms of Mbps.
4752  **/
4753 uint32_t
4754 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4755 {
4756         uint32_t link_speed;
4757
4758         if (!lpfc_is_link_up(phba))
4759                 return 0;
4760
4761         if (phba->sli_rev <= LPFC_SLI_REV3) {
4762                 switch (phba->fc_linkspeed) {
4763                 case LPFC_LINK_SPEED_1GHZ:
4764                         link_speed = 1000;
4765                         break;
4766                 case LPFC_LINK_SPEED_2GHZ:
4767                         link_speed = 2000;
4768                         break;
4769                 case LPFC_LINK_SPEED_4GHZ:
4770                         link_speed = 4000;
4771                         break;
4772                 case LPFC_LINK_SPEED_8GHZ:
4773                         link_speed = 8000;
4774                         break;
4775                 case LPFC_LINK_SPEED_10GHZ:
4776                         link_speed = 10000;
4777                         break;
4778                 case LPFC_LINK_SPEED_16GHZ:
4779                         link_speed = 16000;
4780                         break;
4781                 default:
4782                         link_speed = 0;
4783                 }
4784         } else {
4785                 if (phba->sli4_hba.link_state.logical_speed)
4786                         link_speed =
4787                               phba->sli4_hba.link_state.logical_speed;
4788                 else
4789                         link_speed = phba->sli4_hba.link_state.speed;
4790         }
4791         return link_speed;
4792 }
4793
4794 /**
4795  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4796  * @phba: pointer to lpfc hba data structure.
4797  * @evt_code: asynchronous event code.
4798  * @speed_code: asynchronous event link speed code.
4799  *
4800  * This routine is to parse the giving SLI4 async event link speed code into
4801  * value of Mbps for the link speed.
4802  *
4803  * Return: link speed in terms of Mbps.
4804  **/
4805 static uint32_t
4806 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4807                            uint8_t speed_code)
4808 {
4809         uint32_t port_speed;
4810
4811         switch (evt_code) {
4812         case LPFC_TRAILER_CODE_LINK:
4813                 switch (speed_code) {
4814                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4815                         port_speed = 0;
4816                         break;
4817                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4818                         port_speed = 10;
4819                         break;
4820                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4821                         port_speed = 100;
4822                         break;
4823                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4824                         port_speed = 1000;
4825                         break;
4826                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4827                         port_speed = 10000;
4828                         break;
4829                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4830                         port_speed = 20000;
4831                         break;
4832                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4833                         port_speed = 25000;
4834                         break;
4835                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4836                         port_speed = 40000;
4837                         break;
4838                 default:
4839                         port_speed = 0;
4840                 }
4841                 break;
4842         case LPFC_TRAILER_CODE_FC:
4843                 switch (speed_code) {
4844                 case LPFC_FC_LA_SPEED_UNKNOWN:
4845                         port_speed = 0;
4846                         break;
4847                 case LPFC_FC_LA_SPEED_1G:
4848                         port_speed = 1000;
4849                         break;
4850                 case LPFC_FC_LA_SPEED_2G:
4851                         port_speed = 2000;
4852                         break;
4853                 case LPFC_FC_LA_SPEED_4G:
4854                         port_speed = 4000;
4855                         break;
4856                 case LPFC_FC_LA_SPEED_8G:
4857                         port_speed = 8000;
4858                         break;
4859                 case LPFC_FC_LA_SPEED_10G:
4860                         port_speed = 10000;
4861                         break;
4862                 case LPFC_FC_LA_SPEED_16G:
4863                         port_speed = 16000;
4864                         break;
4865                 case LPFC_FC_LA_SPEED_32G:
4866                         port_speed = 32000;
4867                         break;
4868                 case LPFC_FC_LA_SPEED_64G:
4869                         port_speed = 64000;
4870                         break;
4871                 case LPFC_FC_LA_SPEED_128G:
4872                         port_speed = 128000;
4873                         break;
4874                 default:
4875                         port_speed = 0;
4876                 }
4877                 break;
4878         default:
4879                 port_speed = 0;
4880         }
4881         return port_speed;
4882 }
4883
4884 /**
4885  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4886  * @phba: pointer to lpfc hba data structure.
4887  * @acqe_link: pointer to the async link completion queue entry.
4888  *
4889  * This routine is to handle the SLI4 asynchronous FCoE link event.
4890  **/
4891 static void
4892 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4893                          struct lpfc_acqe_link *acqe_link)
4894 {
4895         struct lpfc_dmabuf *mp;
4896         LPFC_MBOXQ_t *pmb;
4897         MAILBOX_t *mb;
4898         struct lpfc_mbx_read_top *la;
4899         uint8_t att_type;
4900         int rc;
4901
4902         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4903         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4904                 return;
4905         phba->fcoe_eventtag = acqe_link->event_tag;
4906         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4907         if (!pmb) {
4908                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4909                                 "0395 The mboxq allocation failed\n");
4910                 return;
4911         }
4912         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4913         if (!mp) {
4914                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4915                                 "0396 The lpfc_dmabuf allocation failed\n");
4916                 goto out_free_pmb;
4917         }
4918         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4919         if (!mp->virt) {
4920                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4921                                 "0397 The mbuf allocation failed\n");
4922                 goto out_free_dmabuf;
4923         }
4924
4925         /* Cleanup any outstanding ELS commands */
4926         lpfc_els_flush_all_cmd(phba);
4927
4928         /* Block ELS IOCBs until we have done process link event */
4929         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4930
4931         /* Update link event statistics */
4932         phba->sli.slistat.link_event++;
4933
4934         /* Create lpfc_handle_latt mailbox command from link ACQE */
4935         lpfc_read_topology(phba, pmb, mp);
4936         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4937         pmb->vport = phba->pport;
4938
4939         /* Keep the link status for extra SLI4 state machine reference */
4940         phba->sli4_hba.link_state.speed =
4941                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4942                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4943         phba->sli4_hba.link_state.duplex =
4944                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4945         phba->sli4_hba.link_state.status =
4946                                 bf_get(lpfc_acqe_link_status, acqe_link);
4947         phba->sli4_hba.link_state.type =
4948                                 bf_get(lpfc_acqe_link_type, acqe_link);
4949         phba->sli4_hba.link_state.number =
4950                                 bf_get(lpfc_acqe_link_number, acqe_link);
4951         phba->sli4_hba.link_state.fault =
4952                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4953         phba->sli4_hba.link_state.logical_speed =
4954                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4955
4956         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4957                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4958                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4959                         "Logical speed:%dMbps Fault:%d\n",
4960                         phba->sli4_hba.link_state.speed,
4961                         phba->sli4_hba.link_state.topology,
4962                         phba->sli4_hba.link_state.status,
4963                         phba->sli4_hba.link_state.type,
4964                         phba->sli4_hba.link_state.number,
4965                         phba->sli4_hba.link_state.logical_speed,
4966                         phba->sli4_hba.link_state.fault);
4967         /*
4968          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4969          * topology info. Note: Optional for non FC-AL ports.
4970          */
4971         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4972                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4973                 if (rc == MBX_NOT_FINISHED)
4974                         goto out_free_dmabuf;
4975                 return;
4976         }
4977         /*
4978          * For FCoE Mode: fill in all the topology information we need and call
4979          * the READ_TOPOLOGY completion routine to continue without actually
4980          * sending the READ_TOPOLOGY mailbox command to the port.
4981          */
4982         /* Initialize completion status */
4983         mb = &pmb->u.mb;
4984         mb->mbxStatus = MBX_SUCCESS;
4985
4986         /* Parse port fault information field */
4987         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4988
4989         /* Parse and translate link attention fields */
4990         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4991         la->eventTag = acqe_link->event_tag;
4992         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4993         bf_set(lpfc_mbx_read_top_link_spd, la,
4994                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4995
4996         /* Fake the the following irrelvant fields */
4997         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4998         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4999         bf_set(lpfc_mbx_read_top_il, la, 0);
5000         bf_set(lpfc_mbx_read_top_pb, la, 0);
5001         bf_set(lpfc_mbx_read_top_fa, la, 0);
5002         bf_set(lpfc_mbx_read_top_mm, la, 0);
5003
5004         /* Invoke the lpfc_handle_latt mailbox command callback function */
5005         lpfc_mbx_cmpl_read_topology(phba, pmb);
5006
5007         return;
5008
5009 out_free_dmabuf:
5010         kfree(mp);
5011 out_free_pmb:
5012         mempool_free(pmb, phba->mbox_mem_pool);
5013 }
5014
5015 /**
5016  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5017  * topology.
5018  * @phba: pointer to lpfc hba data structure.
5019  * @evt_code: asynchronous event code.
5020  * @speed_code: asynchronous event link speed code.
5021  *
5022  * This routine is to parse the giving SLI4 async event link speed code into
5023  * value of Read topology link speed.
5024  *
5025  * Return: link speed in terms of Read topology.
5026  **/
5027 static uint8_t
5028 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5029 {
5030         uint8_t port_speed;
5031
5032         switch (speed_code) {
5033         case LPFC_FC_LA_SPEED_1G:
5034                 port_speed = LPFC_LINK_SPEED_1GHZ;
5035                 break;
5036         case LPFC_FC_LA_SPEED_2G:
5037                 port_speed = LPFC_LINK_SPEED_2GHZ;
5038                 break;
5039         case LPFC_FC_LA_SPEED_4G:
5040                 port_speed = LPFC_LINK_SPEED_4GHZ;
5041                 break;
5042         case LPFC_FC_LA_SPEED_8G:
5043                 port_speed = LPFC_LINK_SPEED_8GHZ;
5044                 break;
5045         case LPFC_FC_LA_SPEED_16G:
5046                 port_speed = LPFC_LINK_SPEED_16GHZ;
5047                 break;
5048         case LPFC_FC_LA_SPEED_32G:
5049                 port_speed = LPFC_LINK_SPEED_32GHZ;
5050                 break;
5051         case LPFC_FC_LA_SPEED_64G:
5052                 port_speed = LPFC_LINK_SPEED_64GHZ;
5053                 break;
5054         case LPFC_FC_LA_SPEED_128G:
5055                 port_speed = LPFC_LINK_SPEED_128GHZ;
5056                 break;
5057         case LPFC_FC_LA_SPEED_256G:
5058                 port_speed = LPFC_LINK_SPEED_256GHZ;
5059                 break;
5060         default:
5061                 port_speed = 0;
5062                 break;
5063         }
5064
5065         return port_speed;
5066 }
5067
5068 #define trunk_link_status(__idx)\
5069         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5070                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5071                 "Link up" : "Link down") : "NA"
5072 /* Did port __idx reported an error */
5073 #define trunk_port_fault(__idx)\
5074         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5075                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5076
5077 static void
5078 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5079                               struct lpfc_acqe_fc_la *acqe_fc)
5080 {
5081         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5082         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5083
5084         phba->sli4_hba.link_state.speed =
5085                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5086                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5087
5088         phba->sli4_hba.link_state.logical_speed =
5089                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5090         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5091         phba->fc_linkspeed =
5092                  lpfc_async_link_speed_to_read_top(
5093                                 phba,
5094                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5095
5096         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5097                 phba->trunk_link.link0.state =
5098                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5099                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5100                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5101         }
5102         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5103                 phba->trunk_link.link1.state =
5104                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5105                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5106                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5107         }
5108         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5109                 phba->trunk_link.link2.state =
5110                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5111                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5112                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5113         }
5114         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5115                 phba->trunk_link.link3.state =
5116                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5117                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5118                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5119         }
5120
5121         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5122                         "2910 Async FC Trunking Event - Speed:%d\n"
5123                         "\tLogical speed:%d "
5124                         "port0: %s port1: %s port2: %s port3: %s\n",
5125                         phba->sli4_hba.link_state.speed,
5126                         phba->sli4_hba.link_state.logical_speed,
5127                         trunk_link_status(0), trunk_link_status(1),
5128                         trunk_link_status(2), trunk_link_status(3));
5129
5130         if (port_fault)
5131                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5132                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5133                                 /*
5134                                  * SLI-4: We have only 0xA error codes
5135                                  * defined as of now. print an appropriate
5136                                  * message in case driver needs to be updated.
5137                                  */
5138                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5139                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5140                                 trunk_port_fault(0), trunk_port_fault(1),
5141                                 trunk_port_fault(2), trunk_port_fault(3));
5142 }
5143
5144
5145 /**
5146  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5147  * @phba: pointer to lpfc hba data structure.
5148  * @acqe_fc: pointer to the async fc completion queue entry.
5149  *
5150  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5151  * that the event was received and then issue a read_topology mailbox command so
5152  * that the rest of the driver will treat it the same as SLI3.
5153  **/
5154 static void
5155 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5156 {
5157         struct lpfc_dmabuf *mp;
5158         LPFC_MBOXQ_t *pmb;
5159         MAILBOX_t *mb;
5160         struct lpfc_mbx_read_top *la;
5161         int rc;
5162
5163         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5164             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5165                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5166                                 "2895 Non FC link Event detected.(%d)\n",
5167                                 bf_get(lpfc_trailer_type, acqe_fc));
5168                 return;
5169         }
5170
5171         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5172             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5173                 lpfc_update_trunk_link_status(phba, acqe_fc);
5174                 return;
5175         }
5176
5177         /* Keep the link status for extra SLI4 state machine reference */
5178         phba->sli4_hba.link_state.speed =
5179                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5180                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5181         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5182         phba->sli4_hba.link_state.topology =
5183                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5184         phba->sli4_hba.link_state.status =
5185                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5186         phba->sli4_hba.link_state.type =
5187                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5188         phba->sli4_hba.link_state.number =
5189                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5190         phba->sli4_hba.link_state.fault =
5191                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5192
5193         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5194             LPFC_FC_LA_TYPE_LINK_DOWN)
5195                 phba->sli4_hba.link_state.logical_speed = 0;
5196         else if (!phba->sli4_hba.conf_trunk)
5197                 phba->sli4_hba.link_state.logical_speed =
5198                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5199
5200         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5201                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5202                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5203                         "%dMbps Fault:%d\n",
5204                         phba->sli4_hba.link_state.speed,
5205                         phba->sli4_hba.link_state.topology,
5206                         phba->sli4_hba.link_state.status,
5207                         phba->sli4_hba.link_state.type,
5208                         phba->sli4_hba.link_state.number,
5209                         phba->sli4_hba.link_state.logical_speed,
5210                         phba->sli4_hba.link_state.fault);
5211         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5212         if (!pmb) {
5213                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5214                                 "2897 The mboxq allocation failed\n");
5215                 return;
5216         }
5217         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5218         if (!mp) {
5219                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5220                                 "2898 The lpfc_dmabuf allocation failed\n");
5221                 goto out_free_pmb;
5222         }
5223         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5224         if (!mp->virt) {
5225                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5226                                 "2899 The mbuf allocation failed\n");
5227                 goto out_free_dmabuf;
5228         }
5229
5230         /* Cleanup any outstanding ELS commands */
5231         lpfc_els_flush_all_cmd(phba);
5232
5233         /* Block ELS IOCBs until we have done process link event */
5234         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5235
5236         /* Update link event statistics */
5237         phba->sli.slistat.link_event++;
5238
5239         /* Create lpfc_handle_latt mailbox command from link ACQE */
5240         lpfc_read_topology(phba, pmb, mp);
5241         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5242         pmb->vport = phba->pport;
5243
5244         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5245                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5246
5247                 switch (phba->sli4_hba.link_state.status) {
5248                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5249                         phba->link_flag |= LS_MDS_LINK_DOWN;
5250                         break;
5251                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5252                         phba->link_flag |= LS_MDS_LOOPBACK;
5253                         break;
5254                 default:
5255                         break;
5256                 }
5257
5258                 /* Initialize completion status */
5259                 mb = &pmb->u.mb;
5260                 mb->mbxStatus = MBX_SUCCESS;
5261
5262                 /* Parse port fault information field */
5263                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5264
5265                 /* Parse and translate link attention fields */
5266                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5267                 la->eventTag = acqe_fc->event_tag;
5268
5269                 if (phba->sli4_hba.link_state.status ==
5270                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5271                         bf_set(lpfc_mbx_read_top_att_type, la,
5272                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5273                 } else {
5274                         bf_set(lpfc_mbx_read_top_att_type, la,
5275                                LPFC_FC_LA_TYPE_LINK_DOWN);
5276                 }
5277                 /* Invoke the mailbox command callback function */
5278                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5279
5280                 return;
5281         }
5282
5283         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5284         if (rc == MBX_NOT_FINISHED)
5285                 goto out_free_dmabuf;
5286         return;
5287
5288 out_free_dmabuf:
5289         kfree(mp);
5290 out_free_pmb:
5291         mempool_free(pmb, phba->mbox_mem_pool);
5292 }
5293
5294 /**
5295  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5296  * @phba: pointer to lpfc hba data structure.
5297  * @acqe_fc: pointer to the async SLI completion queue entry.
5298  *
5299  * This routine is to handle the SLI4 asynchronous SLI events.
5300  **/
5301 static void
5302 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5303 {
5304         char port_name;
5305         char message[128];
5306         uint8_t status;
5307         uint8_t evt_type;
5308         uint8_t operational = 0;
5309         struct temp_event temp_event_data;
5310         struct lpfc_acqe_misconfigured_event *misconfigured;
5311         struct Scsi_Host  *shost;
5312         struct lpfc_vport **vports;
5313         int rc, i;
5314
5315         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5316
5317         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5318                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5319                         "x%08x x%08x x%08x\n", evt_type,
5320                         acqe_sli->event_data1, acqe_sli->event_data2,
5321                         acqe_sli->reserved, acqe_sli->trailer);
5322
5323         port_name = phba->Port[0];
5324         if (port_name == 0x00)
5325                 port_name = '?'; /* get port name is empty */
5326
5327         switch (evt_type) {
5328         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5329                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5330                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5331                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5332
5333                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5334                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5335                                 acqe_sli->event_data1, port_name);
5336
5337                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5338                 shost = lpfc_shost_from_vport(phba->pport);
5339                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5340                                           sizeof(temp_event_data),
5341                                           (char *)&temp_event_data,
5342                                           SCSI_NL_VID_TYPE_PCI
5343                                           | PCI_VENDOR_ID_EMULEX);
5344                 break;
5345         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5346                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5347                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5348                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5349
5350                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5351                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5352                                 acqe_sli->event_data1, port_name);
5353
5354                 shost = lpfc_shost_from_vport(phba->pport);
5355                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5356                                           sizeof(temp_event_data),
5357                                           (char *)&temp_event_data,
5358                                           SCSI_NL_VID_TYPE_PCI
5359                                           | PCI_VENDOR_ID_EMULEX);
5360                 break;
5361         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5362                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5363                                         &acqe_sli->event_data1;
5364
5365                 /* fetch the status for this port */
5366                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5367                 case LPFC_LINK_NUMBER_0:
5368                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5369                                         &misconfigured->theEvent);
5370                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5371                                         &misconfigured->theEvent);
5372                         break;
5373                 case LPFC_LINK_NUMBER_1:
5374                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5375                                         &misconfigured->theEvent);
5376                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5377                                         &misconfigured->theEvent);
5378                         break;
5379                 case LPFC_LINK_NUMBER_2:
5380                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5381                                         &misconfigured->theEvent);
5382                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5383                                         &misconfigured->theEvent);
5384                         break;
5385                 case LPFC_LINK_NUMBER_3:
5386                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5387                                         &misconfigured->theEvent);
5388                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5389                                         &misconfigured->theEvent);
5390                         break;
5391                 default:
5392                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5393                                         "3296 "
5394                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5395                                         "event: Invalid link %d",
5396                                         phba->sli4_hba.lnk_info.lnk_no);
5397                         return;
5398                 }
5399
5400                 /* Skip if optic state unchanged */
5401                 if (phba->sli4_hba.lnk_info.optic_state == status)
5402                         return;
5403
5404                 switch (status) {
5405                 case LPFC_SLI_EVENT_STATUS_VALID:
5406                         sprintf(message, "Physical Link is functional");
5407                         break;
5408                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5409                         sprintf(message, "Optics faulted/incorrectly "
5410                                 "installed/not installed - Reseat optics, "
5411                                 "if issue not resolved, replace.");
5412                         break;
5413                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5414                         sprintf(message,
5415                                 "Optics of two types installed - Remove one "
5416                                 "optic or install matching pair of optics.");
5417                         break;
5418                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5419                         sprintf(message, "Incompatible optics - Replace with "
5420                                 "compatible optics for card to function.");
5421                         break;
5422                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5423                         sprintf(message, "Unqualified optics - Replace with "
5424                                 "Avago optics for Warranty and Technical "
5425                                 "Support - Link is%s operational",
5426                                 (operational) ? " not" : "");
5427                         break;
5428                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5429                         sprintf(message, "Uncertified optics - Replace with "
5430                                 "Avago-certified optics to enable link "
5431                                 "operation - Link is%s operational",
5432                                 (operational) ? " not" : "");
5433                         break;
5434                 default:
5435                         /* firmware is reporting a status we don't know about */
5436                         sprintf(message, "Unknown event status x%02x", status);
5437                         break;
5438                 }
5439
5440                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5441                 rc = lpfc_sli4_read_config(phba);
5442                 if (rc) {
5443                         phba->lmt = 0;
5444                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5445                                         "3194 Unable to retrieve supported "
5446                                         "speeds, rc = 0x%x\n", rc);
5447                 }
5448                 vports = lpfc_create_vport_work_array(phba);
5449                 if (vports != NULL) {
5450                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5451                                         i++) {
5452                                 shost = lpfc_shost_from_vport(vports[i]);
5453                                 lpfc_host_supported_speeds_set(shost);
5454                         }
5455                 }
5456                 lpfc_destroy_vport_work_array(phba, vports);
5457
5458                 phba->sli4_hba.lnk_info.optic_state = status;
5459                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5460                                 "3176 Port Name %c %s\n", port_name, message);
5461                 break;
5462         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5463                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5464                                 "3192 Remote DPort Test Initiated - "
5465                                 "Event Data1:x%08x Event Data2: x%08x\n",
5466                                 acqe_sli->event_data1, acqe_sli->event_data2);
5467                 break;
5468         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5469                 /* Misconfigured WWN. Reports that the SLI Port is configured
5470                  * to use FA-WWN, but the attached device doesn’t support it.
5471                  * No driver action is required.
5472                  * Event Data1 - N.A, Event Data2 - N.A
5473                  */
5474                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5475                              "2699 Misconfigured FA-WWN - Attached device does "
5476                              "not support FA-WWN\n");
5477                 break;
5478         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5479                 /* EEPROM failure. No driver action is required */
5480                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5481                              "2518 EEPROM failure - "
5482                              "Event Data1: x%08x Event Data2: x%08x\n",
5483                              acqe_sli->event_data1, acqe_sli->event_data2);
5484                 break;
5485         default:
5486                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5487                                 "3193 Unrecognized SLI event, type: 0x%x",
5488                                 evt_type);
5489                 break;
5490         }
5491 }
5492
5493 /**
5494  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5495  * @vport: pointer to vport data structure.
5496  *
5497  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5498  * response to a CVL event.
5499  *
5500  * Return the pointer to the ndlp with the vport if successful, otherwise
5501  * return NULL.
5502  **/
5503 static struct lpfc_nodelist *
5504 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5505 {
5506         struct lpfc_nodelist *ndlp;
5507         struct Scsi_Host *shost;
5508         struct lpfc_hba *phba;
5509
5510         if (!vport)
5511                 return NULL;
5512         phba = vport->phba;
5513         if (!phba)
5514                 return NULL;
5515         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5516         if (!ndlp) {
5517                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5518                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5519                 if (!ndlp)
5520                         return 0;
5521                 /* Set the node type */
5522                 ndlp->nlp_type |= NLP_FABRIC;
5523                 /* Put ndlp onto node list */
5524                 lpfc_enqueue_node(vport, ndlp);
5525         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5526                 /* re-setup ndlp without removing from node list */
5527                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5528                 if (!ndlp)
5529                         return 0;
5530         }
5531         if ((phba->pport->port_state < LPFC_FLOGI) &&
5532                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5533                 return NULL;
5534         /* If virtual link is not yet instantiated ignore CVL */
5535         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5536                 && (vport->port_state != LPFC_VPORT_FAILED))
5537                 return NULL;
5538         shost = lpfc_shost_from_vport(vport);
5539         if (!shost)
5540                 return NULL;
5541         lpfc_linkdown_port(vport);
5542         lpfc_cleanup_pending_mbox(vport);
5543         spin_lock_irq(shost->host_lock);
5544         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5545         spin_unlock_irq(shost->host_lock);
5546
5547         return ndlp;
5548 }
5549
5550 /**
5551  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5552  * @vport: pointer to lpfc hba data structure.
5553  *
5554  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5555  * response to a FCF dead event.
5556  **/
5557 static void
5558 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5559 {
5560         struct lpfc_vport **vports;
5561         int i;
5562
5563         vports = lpfc_create_vport_work_array(phba);
5564         if (vports)
5565                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5566                         lpfc_sli4_perform_vport_cvl(vports[i]);
5567         lpfc_destroy_vport_work_array(phba, vports);
5568 }
5569
5570 /**
5571  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5572  * @phba: pointer to lpfc hba data structure.
5573  * @acqe_link: pointer to the async fcoe completion queue entry.
5574  *
5575  * This routine is to handle the SLI4 asynchronous fcoe event.
5576  **/
5577 static void
5578 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5579                         struct lpfc_acqe_fip *acqe_fip)
5580 {
5581         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5582         int rc;
5583         struct lpfc_vport *vport;
5584         struct lpfc_nodelist *ndlp;
5585         struct Scsi_Host  *shost;
5586         int active_vlink_present;
5587         struct lpfc_vport **vports;
5588         int i;
5589
5590         phba->fc_eventTag = acqe_fip->event_tag;
5591         phba->fcoe_eventtag = acqe_fip->event_tag;
5592         switch (event_type) {
5593         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5594         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5595                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5596                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5597                                         LOG_DISCOVERY,
5598                                         "2546 New FCF event, evt_tag:x%x, "
5599                                         "index:x%x\n",
5600                                         acqe_fip->event_tag,
5601                                         acqe_fip->index);
5602                 else
5603                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5604                                         LOG_DISCOVERY,
5605                                         "2788 FCF param modified event, "
5606                                         "evt_tag:x%x, index:x%x\n",
5607                                         acqe_fip->event_tag,
5608                                         acqe_fip->index);
5609                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5610                         /*
5611                          * During period of FCF discovery, read the FCF
5612                          * table record indexed by the event to update
5613                          * FCF roundrobin failover eligible FCF bmask.
5614                          */
5615                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5616                                         LOG_DISCOVERY,
5617                                         "2779 Read FCF (x%x) for updating "
5618                                         "roundrobin FCF failover bmask\n",
5619                                         acqe_fip->index);
5620                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5621                 }
5622
5623                 /* If the FCF discovery is in progress, do nothing. */
5624                 spin_lock_irq(&phba->hbalock);
5625                 if (phba->hba_flag & FCF_TS_INPROG) {
5626                         spin_unlock_irq(&phba->hbalock);
5627                         break;
5628                 }
5629                 /* If fast FCF failover rescan event is pending, do nothing */
5630                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5631                         spin_unlock_irq(&phba->hbalock);
5632                         break;
5633                 }
5634
5635                 /* If the FCF has been in discovered state, do nothing. */
5636                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5637                         spin_unlock_irq(&phba->hbalock);
5638                         break;
5639                 }
5640                 spin_unlock_irq(&phba->hbalock);
5641
5642                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5643                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5644                                 "2770 Start FCF table scan per async FCF "
5645                                 "event, evt_tag:x%x, index:x%x\n",
5646                                 acqe_fip->event_tag, acqe_fip->index);
5647                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5648                                                      LPFC_FCOE_FCF_GET_FIRST);
5649                 if (rc)
5650                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5651                                         "2547 Issue FCF scan read FCF mailbox "
5652                                         "command failed (x%x)\n", rc);
5653                 break;
5654
5655         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5656                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5657                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5658                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5659                         acqe_fip->event_tag);
5660                 break;
5661
5662         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5663                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5664                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5665                         "2549 FCF (x%x) disconnected from network, "
5666                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5667                 /*
5668                  * If we are in the middle of FCF failover process, clear
5669                  * the corresponding FCF bit in the roundrobin bitmap.
5670                  */
5671                 spin_lock_irq(&phba->hbalock);
5672                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5673                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5674                         spin_unlock_irq(&phba->hbalock);
5675                         /* Update FLOGI FCF failover eligible FCF bmask */
5676                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5677                         break;
5678                 }
5679                 spin_unlock_irq(&phba->hbalock);
5680
5681                 /* If the event is not for currently used fcf do nothing */
5682                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5683                         break;
5684
5685                 /*
5686                  * Otherwise, request the port to rediscover the entire FCF
5687                  * table for a fast recovery from case that the current FCF
5688                  * is no longer valid as we are not in the middle of FCF
5689                  * failover process already.
5690                  */
5691                 spin_lock_irq(&phba->hbalock);
5692                 /* Mark the fast failover process in progress */
5693                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5694                 spin_unlock_irq(&phba->hbalock);
5695
5696                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5697                                 "2771 Start FCF fast failover process due to "
5698                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5699                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5700                 rc = lpfc_sli4_redisc_fcf_table(phba);
5701                 if (rc) {
5702                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5703                                         LOG_DISCOVERY,
5704                                         "2772 Issue FCF rediscover mailbox "
5705                                         "command failed, fail through to FCF "
5706                                         "dead event\n");
5707                         spin_lock_irq(&phba->hbalock);
5708                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5709                         spin_unlock_irq(&phba->hbalock);
5710                         /*
5711                          * Last resort will fail over by treating this
5712                          * as a link down to FCF registration.
5713                          */
5714                         lpfc_sli4_fcf_dead_failthrough(phba);
5715                 } else {
5716                         /* Reset FCF roundrobin bmask for new discovery */
5717                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5718                         /*
5719                          * Handling fast FCF failover to a DEAD FCF event is
5720                          * considered equalivant to receiving CVL to all vports.
5721                          */
5722                         lpfc_sli4_perform_all_vport_cvl(phba);
5723                 }
5724                 break;
5725         case LPFC_FIP_EVENT_TYPE_CVL:
5726                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5727                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5728                         "2718 Clear Virtual Link Received for VPI 0x%x"
5729                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5730
5731                 vport = lpfc_find_vport_by_vpid(phba,
5732                                                 acqe_fip->index);
5733                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5734                 if (!ndlp)
5735                         break;
5736                 active_vlink_present = 0;
5737
5738                 vports = lpfc_create_vport_work_array(phba);
5739                 if (vports) {
5740                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5741                                         i++) {
5742                                 if ((!(vports[i]->fc_flag &
5743                                         FC_VPORT_CVL_RCVD)) &&
5744                                         (vports[i]->port_state > LPFC_FDISC)) {
5745                                         active_vlink_present = 1;
5746                                         break;
5747                                 }
5748                         }
5749                         lpfc_destroy_vport_work_array(phba, vports);
5750                 }
5751
5752                 /*
5753                  * Don't re-instantiate if vport is marked for deletion.
5754                  * If we are here first then vport_delete is going to wait
5755                  * for discovery to complete.
5756                  */
5757                 if (!(vport->load_flag & FC_UNLOADING) &&
5758                                         active_vlink_present) {
5759                         /*
5760                          * If there are other active VLinks present,
5761                          * re-instantiate the Vlink using FDISC.
5762                          */
5763                         mod_timer(&ndlp->nlp_delayfunc,
5764                                   jiffies + msecs_to_jiffies(1000));
5765                         shost = lpfc_shost_from_vport(vport);
5766                         spin_lock_irq(shost->host_lock);
5767                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5768                         spin_unlock_irq(shost->host_lock);
5769                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5770                         vport->port_state = LPFC_FDISC;
5771                 } else {
5772                         /*
5773                          * Otherwise, we request port to rediscover
5774                          * the entire FCF table for a fast recovery
5775                          * from possible case that the current FCF
5776                          * is no longer valid if we are not already
5777                          * in the FCF failover process.
5778                          */
5779                         spin_lock_irq(&phba->hbalock);
5780                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5781                                 spin_unlock_irq(&phba->hbalock);
5782                                 break;
5783                         }
5784                         /* Mark the fast failover process in progress */
5785                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5786                         spin_unlock_irq(&phba->hbalock);
5787                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5788                                         LOG_DISCOVERY,
5789                                         "2773 Start FCF failover per CVL, "
5790                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5791                         rc = lpfc_sli4_redisc_fcf_table(phba);
5792                         if (rc) {
5793                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5794                                                 LOG_DISCOVERY,
5795                                                 "2774 Issue FCF rediscover "
5796                                                 "mailbox command failed, "
5797                                                 "through to CVL event\n");
5798                                 spin_lock_irq(&phba->hbalock);
5799                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5800                                 spin_unlock_irq(&phba->hbalock);
5801                                 /*
5802                                  * Last resort will be re-try on the
5803                                  * the current registered FCF entry.
5804                                  */
5805                                 lpfc_retry_pport_discovery(phba);
5806                         } else
5807                                 /*
5808                                  * Reset FCF roundrobin bmask for new
5809                                  * discovery.
5810                                  */
5811                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5812                 }
5813                 break;
5814         default:
5815                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5816                         "0288 Unknown FCoE event type 0x%x event tag "
5817                         "0x%x\n", event_type, acqe_fip->event_tag);
5818                 break;
5819         }
5820 }
5821
5822 /**
5823  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5824  * @phba: pointer to lpfc hba data structure.
5825  * @acqe_link: pointer to the async dcbx completion queue entry.
5826  *
5827  * This routine is to handle the SLI4 asynchronous dcbx event.
5828  **/
5829 static void
5830 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5831                          struct lpfc_acqe_dcbx *acqe_dcbx)
5832 {
5833         phba->fc_eventTag = acqe_dcbx->event_tag;
5834         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5835                         "0290 The SLI4 DCBX asynchronous event is not "
5836                         "handled yet\n");
5837 }
5838
5839 /**
5840  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5841  * @phba: pointer to lpfc hba data structure.
5842  * @acqe_link: pointer to the async grp5 completion queue entry.
5843  *
5844  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5845  * is an asynchronous notified of a logical link speed change.  The Port
5846  * reports the logical link speed in units of 10Mbps.
5847  **/
5848 static void
5849 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5850                          struct lpfc_acqe_grp5 *acqe_grp5)
5851 {
5852         uint16_t prev_ll_spd;
5853
5854         phba->fc_eventTag = acqe_grp5->event_tag;
5855         phba->fcoe_eventtag = acqe_grp5->event_tag;
5856         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5857         phba->sli4_hba.link_state.logical_speed =
5858                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5859         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5860                         "2789 GRP5 Async Event: Updating logical link speed "
5861                         "from %dMbps to %dMbps\n", prev_ll_spd,
5862                         phba->sli4_hba.link_state.logical_speed);
5863 }
5864
5865 /**
5866  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5867  * @phba: pointer to lpfc hba data structure.
5868  *
5869  * This routine is invoked by the worker thread to process all the pending
5870  * SLI4 asynchronous events.
5871  **/
5872 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5873 {
5874         struct lpfc_cq_event *cq_event;
5875
5876         /* First, declare the async event has been handled */
5877         spin_lock_irq(&phba->hbalock);
5878         phba->hba_flag &= ~ASYNC_EVENT;
5879         spin_unlock_irq(&phba->hbalock);
5880         /* Now, handle all the async events */
5881         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5882                 /* Get the first event from the head of the event queue */
5883                 spin_lock_irq(&phba->hbalock);
5884                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5885                                  cq_event, struct lpfc_cq_event, list);
5886                 spin_unlock_irq(&phba->hbalock);
5887                 /* Process the asynchronous event */
5888                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5889                 case LPFC_TRAILER_CODE_LINK:
5890                         lpfc_sli4_async_link_evt(phba,
5891                                                  &cq_event->cqe.acqe_link);
5892                         break;
5893                 case LPFC_TRAILER_CODE_FCOE:
5894                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5895                         break;
5896                 case LPFC_TRAILER_CODE_DCBX:
5897                         lpfc_sli4_async_dcbx_evt(phba,
5898                                                  &cq_event->cqe.acqe_dcbx);
5899                         break;
5900                 case LPFC_TRAILER_CODE_GRP5:
5901                         lpfc_sli4_async_grp5_evt(phba,
5902                                                  &cq_event->cqe.acqe_grp5);
5903                         break;
5904                 case LPFC_TRAILER_CODE_FC:
5905                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5906                         break;
5907                 case LPFC_TRAILER_CODE_SLI:
5908                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5909                         break;
5910                 default:
5911                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5912                                         "1804 Invalid asynchronous event code: "
5913                                         "x%x\n", bf_get(lpfc_trailer_code,
5914                                         &cq_event->cqe.mcqe_cmpl));
5915                         break;
5916                 }
5917                 /* Free the completion event processed to the free pool */
5918                 lpfc_sli4_cq_event_release(phba, cq_event);
5919         }
5920 }
5921
5922 /**
5923  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5924  * @phba: pointer to lpfc hba data structure.
5925  *
5926  * This routine is invoked by the worker thread to process FCF table
5927  * rediscovery pending completion event.
5928  **/
5929 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5930 {
5931         int rc;
5932
5933         spin_lock_irq(&phba->hbalock);
5934         /* Clear FCF rediscovery timeout event */
5935         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5936         /* Clear driver fast failover FCF record flag */
5937         phba->fcf.failover_rec.flag = 0;
5938         /* Set state for FCF fast failover */
5939         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5940         spin_unlock_irq(&phba->hbalock);
5941
5942         /* Scan FCF table from the first entry to re-discover SAN */
5943         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5944                         "2777 Start post-quiescent FCF table scan\n");
5945         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5946         if (rc)
5947                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5948                                 "2747 Issue FCF scan read FCF mailbox "
5949                                 "command failed 0x%x\n", rc);
5950 }
5951
5952 /**
5953  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5954  * @phba: pointer to lpfc hba data structure.
5955  * @dev_grp: The HBA PCI-Device group number.
5956  *
5957  * This routine is invoked to set up the per HBA PCI-Device group function
5958  * API jump table entries.
5959  *
5960  * Return: 0 if success, otherwise -ENODEV
5961  **/
5962 int
5963 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5964 {
5965         int rc;
5966
5967         /* Set up lpfc PCI-device group */
5968         phba->pci_dev_grp = dev_grp;
5969
5970         /* The LPFC_PCI_DEV_OC uses SLI4 */
5971         if (dev_grp == LPFC_PCI_DEV_OC)
5972                 phba->sli_rev = LPFC_SLI_REV4;
5973
5974         /* Set up device INIT API function jump table */
5975         rc = lpfc_init_api_table_setup(phba, dev_grp);
5976         if (rc)
5977                 return -ENODEV;
5978         /* Set up SCSI API function jump table */
5979         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5980         if (rc)
5981                 return -ENODEV;
5982         /* Set up SLI API function jump table */
5983         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5984         if (rc)
5985                 return -ENODEV;
5986         /* Set up MBOX API function jump table */
5987         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5988         if (rc)
5989                 return -ENODEV;
5990
5991         return 0;
5992 }
5993
5994 /**
5995  * lpfc_log_intr_mode - Log the active interrupt mode
5996  * @phba: pointer to lpfc hba data structure.
5997  * @intr_mode: active interrupt mode adopted.
5998  *
5999  * This routine it invoked to log the currently used active interrupt mode
6000  * to the device.
6001  **/
6002 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
6003 {
6004         switch (intr_mode) {
6005         case 0:
6006                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6007                                 "0470 Enable INTx interrupt mode.\n");
6008                 break;
6009         case 1:
6010                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6011                                 "0481 Enabled MSI interrupt mode.\n");
6012                 break;
6013         case 2:
6014                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6015                                 "0480 Enabled MSI-X interrupt mode.\n");
6016                 break;
6017         default:
6018                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6019                                 "0482 Illegal interrupt mode.\n");
6020                 break;
6021         }
6022         return;
6023 }
6024
6025 /**
6026  * lpfc_cpumask_of_node_init - initalizes cpumask of phba's NUMA node
6027  * @phba: Pointer to HBA context object.
6028  *
6029  **/
6030 static void
6031 lpfc_cpumask_of_node_init(struct lpfc_hba *phba)
6032 {
6033         unsigned int cpu, numa_node;
6034         struct cpumask *numa_mask = &phba->sli4_hba.numa_mask;
6035
6036         cpumask_clear(numa_mask);
6037
6038         /* Check if we're a NUMA architecture */
6039         numa_node = dev_to_node(&phba->pcidev->dev);
6040         if (numa_node == NUMA_NO_NODE)
6041                 return;
6042
6043         for_each_possible_cpu(cpu)
6044                 if (cpu_to_node(cpu) == numa_node)
6045                         cpumask_set_cpu(cpu, numa_mask);
6046 }
6047
6048 /**
6049  * lpfc_enable_pci_dev - Enable a generic PCI device.
6050  * @phba: pointer to lpfc hba data structure.
6051  *
6052  * This routine is invoked to enable the PCI device that is common to all
6053  * PCI devices.
6054  *
6055  * Return codes
6056  *      0 - successful
6057  *      other values - error
6058  **/
6059 static int
6060 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6061 {
6062         struct pci_dev *pdev;
6063
6064         /* Obtain PCI device reference */
6065         if (!phba->pcidev)
6066                 goto out_error;
6067         else
6068                 pdev = phba->pcidev;
6069         /* Enable PCI device */
6070         if (pci_enable_device_mem(pdev))
6071                 goto out_error;
6072         /* Request PCI resource for the device */
6073         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6074                 goto out_disable_device;
6075         /* Set up device as PCI master and save state for EEH */
6076         pci_set_master(pdev);
6077         pci_try_set_mwi(pdev);
6078         pci_save_state(pdev);
6079
6080         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6081         if (pci_is_pcie(pdev))
6082                 pdev->needs_freset = 1;
6083
6084         return 0;
6085
6086 out_disable_device:
6087         pci_disable_device(pdev);
6088 out_error:
6089         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6090                         "1401 Failed to enable pci device\n");
6091         return -ENODEV;
6092 }
6093
6094 /**
6095  * lpfc_disable_pci_dev - Disable a generic PCI device.
6096  * @phba: pointer to lpfc hba data structure.
6097  *
6098  * This routine is invoked to disable the PCI device that is common to all
6099  * PCI devices.
6100  **/
6101 static void
6102 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6103 {
6104         struct pci_dev *pdev;
6105
6106         /* Obtain PCI device reference */
6107         if (!phba->pcidev)
6108                 return;
6109         else
6110                 pdev = phba->pcidev;
6111         /* Release PCI resource and disable PCI device */
6112         pci_release_mem_regions(pdev);
6113         pci_disable_device(pdev);
6114
6115         return;
6116 }
6117
6118 /**
6119  * lpfc_reset_hba - Reset a hba
6120  * @phba: pointer to lpfc hba data structure.
6121  *
6122  * This routine is invoked to reset a hba device. It brings the HBA
6123  * offline, performs a board restart, and then brings the board back
6124  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6125  * on outstanding mailbox commands.
6126  **/
6127 void
6128 lpfc_reset_hba(struct lpfc_hba *phba)
6129 {
6130         /* If resets are disabled then set error state and return. */
6131         if (!phba->cfg_enable_hba_reset) {
6132                 phba->link_state = LPFC_HBA_ERROR;
6133                 return;
6134         }
6135         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6136                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6137         else
6138                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6139         lpfc_offline(phba);
6140         lpfc_sli_brdrestart(phba);
6141         lpfc_online(phba);
6142         lpfc_unblock_mgmt_io(phba);
6143 }
6144
6145 /**
6146  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6147  * @phba: pointer to lpfc hba data structure.
6148  *
6149  * This function enables the PCI SR-IOV virtual functions to a physical
6150  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6151  * enable the number of virtual functions to the physical function. As
6152  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6153  * API call does not considered as an error condition for most of the device.
6154  **/
6155 uint16_t
6156 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6157 {
6158         struct pci_dev *pdev = phba->pcidev;
6159         uint16_t nr_virtfn;
6160         int pos;
6161
6162         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6163         if (pos == 0)
6164                 return 0;
6165
6166         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6167         return nr_virtfn;
6168 }
6169
6170 /**
6171  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6172  * @phba: pointer to lpfc hba data structure.
6173  * @nr_vfn: number of virtual functions to be enabled.
6174  *
6175  * This function enables the PCI SR-IOV virtual functions to a physical
6176  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6177  * enable the number of virtual functions to the physical function. As
6178  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6179  * API call does not considered as an error condition for most of the device.
6180  **/
6181 int
6182 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6183 {
6184         struct pci_dev *pdev = phba->pcidev;
6185         uint16_t max_nr_vfn;
6186         int rc;
6187
6188         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6189         if (nr_vfn > max_nr_vfn) {
6190                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6191                                 "3057 Requested vfs (%d) greater than "
6192                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6193                 return -EINVAL;
6194         }
6195
6196         rc = pci_enable_sriov(pdev, nr_vfn);
6197         if (rc) {
6198                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6199                                 "2806 Failed to enable sriov on this device "
6200                                 "with vfn number nr_vf:%d, rc:%d\n",
6201                                 nr_vfn, rc);
6202         } else
6203                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6204                                 "2807 Successful enable sriov on this device "
6205                                 "with vfn number nr_vf:%d\n", nr_vfn);
6206         return rc;
6207 }
6208
6209 /**
6210  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6211  * @phba: pointer to lpfc hba data structure.
6212  *
6213  * This routine is invoked to set up the driver internal resources before the
6214  * device specific resource setup to support the HBA device it attached to.
6215  *
6216  * Return codes
6217  *      0 - successful
6218  *      other values - error
6219  **/
6220 static int
6221 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6222 {
6223         struct lpfc_sli *psli = &phba->sli;
6224
6225         /*
6226          * Driver resources common to all SLI revisions
6227          */
6228         atomic_set(&phba->fast_event_count, 0);
6229         spin_lock_init(&phba->hbalock);
6230
6231         /* Initialize ndlp management spinlock */
6232         spin_lock_init(&phba->ndlp_lock);
6233
6234         /* Initialize port_list spinlock */
6235         spin_lock_init(&phba->port_list_lock);
6236         INIT_LIST_HEAD(&phba->port_list);
6237
6238         INIT_LIST_HEAD(&phba->work_list);
6239         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6240
6241         /* Initialize the wait queue head for the kernel thread */
6242         init_waitqueue_head(&phba->work_waitq);
6243
6244         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6245                         "1403 Protocols supported %s %s %s\n",
6246                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6247                                 "SCSI" : " "),
6248                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6249                                 "NVME" : " "),
6250                         (phba->nvmet_support ? "NVMET" : " "));
6251
6252         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6253         spin_lock_init(&phba->scsi_buf_list_get_lock);
6254         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6255         spin_lock_init(&phba->scsi_buf_list_put_lock);
6256         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6257
6258         /* Initialize the fabric iocb list */
6259         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6260
6261         /* Initialize list to save ELS buffers */
6262         INIT_LIST_HEAD(&phba->elsbuf);
6263
6264         /* Initialize FCF connection rec list */
6265         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6266
6267         /* Initialize OAS configuration list */
6268         spin_lock_init(&phba->devicelock);
6269         INIT_LIST_HEAD(&phba->luns);
6270
6271         /* MBOX heartbeat timer */
6272         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6273         /* Fabric block timer */
6274         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6275         /* EA polling mode timer */
6276         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6277         /* Heartbeat timer */
6278         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6279
6280         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6281
6282         return 0;
6283 }
6284
6285 /**
6286  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6287  * @phba: pointer to lpfc hba data structure.
6288  *
6289  * This routine is invoked to set up the driver internal resources specific to
6290  * support the SLI-3 HBA device it attached to.
6291  *
6292  * Return codes
6293  * 0 - successful
6294  * other values - error
6295  **/
6296 static int
6297 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6298 {
6299         int rc, entry_sz;
6300
6301         /*
6302          * Initialize timers used by driver
6303          */
6304
6305         /* FCP polling mode timer */
6306         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6307
6308         /* Host attention work mask setup */
6309         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6310         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6311
6312         /* Get all the module params for configuring this host */
6313         lpfc_get_cfgparam(phba);
6314         /* Set up phase-1 common device driver resources */
6315
6316         rc = lpfc_setup_driver_resource_phase1(phba);
6317         if (rc)
6318                 return -ENODEV;
6319
6320         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6321                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6322                 /* check for menlo minimum sg count */
6323                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6324                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6325         }
6326
6327         if (!phba->sli.sli3_ring)
6328                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6329                                               sizeof(struct lpfc_sli_ring),
6330                                               GFP_KERNEL);
6331         if (!phba->sli.sli3_ring)
6332                 return -ENOMEM;
6333
6334         /*
6335          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6336          * used to create the sg_dma_buf_pool must be dynamically calculated.
6337          */
6338
6339         if (phba->sli_rev == LPFC_SLI_REV4)
6340                 entry_sz = sizeof(struct sli4_sge);
6341         else
6342                 entry_sz = sizeof(struct ulp_bde64);
6343
6344         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6345         if (phba->cfg_enable_bg) {
6346                 /*
6347                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6348                  * the FCP rsp, and a BDE for each. Sice we have no control
6349                  * over how many protection data segments the SCSI Layer
6350                  * will hand us (ie: there could be one for every block
6351                  * in the IO), we just allocate enough BDEs to accomidate
6352                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6353                  * minimize the risk of running out.
6354                  */
6355                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6356                         sizeof(struct fcp_rsp) +
6357                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6358
6359                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6360                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6361
6362                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6363                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6364         } else {
6365                 /*
6366                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6367                  * the FCP rsp, a BDE for each, and a BDE for up to
6368                  * cfg_sg_seg_cnt data segments.
6369                  */
6370                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6371                         sizeof(struct fcp_rsp) +
6372                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6373
6374                 /* Total BDEs in BPL for scsi_sg_list */
6375                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6376         }
6377
6378         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6379                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6380                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6381                         phba->cfg_total_seg_cnt);
6382
6383         phba->max_vpi = LPFC_MAX_VPI;
6384         /* This will be set to correct value after config_port mbox */
6385         phba->max_vports = 0;
6386
6387         /*
6388          * Initialize the SLI Layer to run with lpfc HBAs.
6389          */
6390         lpfc_sli_setup(phba);
6391         lpfc_sli_queue_init(phba);
6392
6393         /* Allocate device driver memory */
6394         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6395                 return -ENOMEM;
6396
6397         phba->lpfc_sg_dma_buf_pool =
6398                 dma_pool_create("lpfc_sg_dma_buf_pool",
6399                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6400                                 BPL_ALIGN_SZ, 0);
6401
6402         if (!phba->lpfc_sg_dma_buf_pool)
6403                 goto fail_free_mem;
6404
6405         phba->lpfc_cmd_rsp_buf_pool =
6406                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6407                                         &phba->pcidev->dev,
6408                                         sizeof(struct fcp_cmnd) +
6409                                         sizeof(struct fcp_rsp),
6410                                         BPL_ALIGN_SZ, 0);
6411
6412         if (!phba->lpfc_cmd_rsp_buf_pool)
6413                 goto fail_free_dma_buf_pool;
6414
6415         /*
6416          * Enable sr-iov virtual functions if supported and configured
6417          * through the module parameter.
6418          */
6419         if (phba->cfg_sriov_nr_virtfn > 0) {
6420                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6421                                                  phba->cfg_sriov_nr_virtfn);
6422                 if (rc) {
6423                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6424                                         "2808 Requested number of SR-IOV "
6425                                         "virtual functions (%d) is not "
6426                                         "supported\n",
6427                                         phba->cfg_sriov_nr_virtfn);
6428                         phba->cfg_sriov_nr_virtfn = 0;
6429                 }
6430         }
6431
6432         return 0;
6433
6434 fail_free_dma_buf_pool:
6435         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6436         phba->lpfc_sg_dma_buf_pool = NULL;
6437 fail_free_mem:
6438         lpfc_mem_free(phba);
6439         return -ENOMEM;
6440 }
6441
6442 /**
6443  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6444  * @phba: pointer to lpfc hba data structure.
6445  *
6446  * This routine is invoked to unset the driver internal resources set up
6447  * specific for supporting the SLI-3 HBA device it attached to.
6448  **/
6449 static void
6450 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6451 {
6452         /* Free device driver memory allocated */
6453         lpfc_mem_free_all(phba);
6454
6455         return;
6456 }
6457
6458 /**
6459  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6460  * @phba: pointer to lpfc hba data structure.
6461  *
6462  * This routine is invoked to set up the driver internal resources specific to
6463  * support the SLI-4 HBA device it attached to.
6464  *
6465  * Return codes
6466  *      0 - successful
6467  *      other values - error
6468  **/
6469 static int
6470 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6471 {
6472         LPFC_MBOXQ_t *mboxq;
6473         MAILBOX_t *mb;
6474         int rc, i, max_buf_size;
6475         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6476         struct lpfc_mqe *mqe;
6477         int longs;
6478         int extra;
6479         uint64_t wwn;
6480         u32 if_type;
6481         u32 if_fam;
6482
6483         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6484         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6485         phba->sli4_hba.curr_disp_cpu = 0;
6486         lpfc_cpumask_of_node_init(phba);
6487
6488         /* Get all the module params for configuring this host */
6489         lpfc_get_cfgparam(phba);
6490
6491         /* Set up phase-1 common device driver resources */
6492         rc = lpfc_setup_driver_resource_phase1(phba);
6493         if (rc)
6494                 return -ENODEV;
6495
6496         /* Before proceed, wait for POST done and device ready */
6497         rc = lpfc_sli4_post_status_check(phba);
6498         if (rc)
6499                 return -ENODEV;
6500
6501         /* Allocate all driver workqueues here */
6502
6503         /* The lpfc_wq workqueue for deferred irq use */
6504         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6505
6506         /*
6507          * Initialize timers used by driver
6508          */
6509
6510         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6511
6512         /* FCF rediscover timer */
6513         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6514
6515         /*
6516          * Control structure for handling external multi-buffer mailbox
6517          * command pass-through.
6518          */
6519         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6520                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6521         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6522
6523         phba->max_vpi = LPFC_MAX_VPI;
6524
6525         /* This will be set to correct value after the read_config mbox */
6526         phba->max_vports = 0;
6527
6528         /* Program the default value of vlan_id and fc_map */
6529         phba->valid_vlan = 0;
6530         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6531         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6532         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6533
6534         /*
6535          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6536          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6537          * The WQ create will allocate the ring.
6538          */
6539
6540         /* Initialize buffer queue management fields */
6541         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6542         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6543         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6544
6545         /*
6546          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6547          */
6548         /* Initialize the Abort buffer list used by driver */
6549         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6550         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6551
6552         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6553                 /* Initialize the Abort nvme buffer list used by driver */
6554                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6555                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6556                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6557                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6558                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6559         }
6560
6561         /* This abort list used by worker thread */
6562         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6563         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6564
6565         /*
6566          * Initialize driver internal slow-path work queues
6567          */
6568
6569         /* Driver internel slow-path CQ Event pool */
6570         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6571         /* Response IOCB work queue list */
6572         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6573         /* Asynchronous event CQ Event work queue list */
6574         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6575         /* Fast-path XRI aborted CQ Event work queue list */
6576         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6577         /* Slow-path XRI aborted CQ Event work queue list */
6578         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6579         /* Receive queue CQ Event work queue list */
6580         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6581
6582         /* Initialize extent block lists. */
6583         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6584         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6585         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6586         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6587
6588         /* Initialize mboxq lists. If the early init routines fail
6589          * these lists need to be correctly initialized.
6590          */
6591         INIT_LIST_HEAD(&phba->sli.mboxq);
6592         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6593
6594         /* initialize optic_state to 0xFF */
6595         phba->sli4_hba.lnk_info.optic_state = 0xff;
6596
6597         /* Allocate device driver memory */
6598         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6599         if (rc)
6600                 return -ENOMEM;
6601
6602         /* IF Type 2 ports get initialized now. */
6603         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6604             LPFC_SLI_INTF_IF_TYPE_2) {
6605                 rc = lpfc_pci_function_reset(phba);
6606                 if (unlikely(rc)) {
6607                         rc = -ENODEV;
6608                         goto out_free_mem;
6609                 }
6610                 phba->temp_sensor_support = 1;
6611         }
6612
6613         /* Create the bootstrap mailbox command */
6614         rc = lpfc_create_bootstrap_mbox(phba);
6615         if (unlikely(rc))
6616                 goto out_free_mem;
6617
6618         /* Set up the host's endian order with the device. */
6619         rc = lpfc_setup_endian_order(phba);
6620         if (unlikely(rc))
6621                 goto out_free_bsmbx;
6622
6623         /* Set up the hba's configuration parameters. */
6624         rc = lpfc_sli4_read_config(phba);
6625         if (unlikely(rc))
6626                 goto out_free_bsmbx;
6627         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6628         if (unlikely(rc))
6629                 goto out_free_bsmbx;
6630
6631         /* IF Type 0 ports get initialized now. */
6632         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6633             LPFC_SLI_INTF_IF_TYPE_0) {
6634                 rc = lpfc_pci_function_reset(phba);
6635                 if (unlikely(rc))
6636                         goto out_free_bsmbx;
6637         }
6638
6639         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6640                                                        GFP_KERNEL);
6641         if (!mboxq) {
6642                 rc = -ENOMEM;
6643                 goto out_free_bsmbx;
6644         }
6645
6646         /* Check for NVMET being configured */
6647         phba->nvmet_support = 0;
6648         if (lpfc_enable_nvmet_cnt) {
6649
6650                 /* First get WWN of HBA instance */
6651                 lpfc_read_nv(phba, mboxq);
6652                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6653                 if (rc != MBX_SUCCESS) {
6654                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6655                                         "6016 Mailbox failed , mbxCmd x%x "
6656                                         "READ_NV, mbxStatus x%x\n",
6657                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6658                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6659                         mempool_free(mboxq, phba->mbox_mem_pool);
6660                         rc = -EIO;
6661                         goto out_free_bsmbx;
6662                 }
6663                 mb = &mboxq->u.mb;
6664                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6665                        sizeof(uint64_t));
6666                 wwn = cpu_to_be64(wwn);
6667                 phba->sli4_hba.wwnn.u.name = wwn;
6668                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6669                        sizeof(uint64_t));
6670                 /* wwn is WWPN of HBA instance */
6671                 wwn = cpu_to_be64(wwn);
6672                 phba->sli4_hba.wwpn.u.name = wwn;
6673
6674                 /* Check to see if it matches any module parameter */
6675                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6676                         if (wwn == lpfc_enable_nvmet[i]) {
6677 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6678                                 if (lpfc_nvmet_mem_alloc(phba))
6679                                         break;
6680
6681                                 phba->nvmet_support = 1; /* a match */
6682
6683                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6684                                                 "6017 NVME Target %016llx\n",
6685                                                 wwn);
6686 #else
6687                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6688                                                 "6021 Can't enable NVME Target."
6689                                                 " NVME_TARGET_FC infrastructure"
6690                                                 " is not in kernel\n");
6691 #endif
6692                                 /* Not supported for NVMET */
6693                                 phba->cfg_xri_rebalancing = 0;
6694                                 break;
6695                         }
6696                 }
6697         }
6698
6699         lpfc_nvme_mod_param_dep(phba);
6700
6701         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6702         lpfc_supported_pages(mboxq);
6703         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6704         if (!rc) {
6705                 mqe = &mboxq->u.mqe;
6706                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6707                        LPFC_MAX_SUPPORTED_PAGES);
6708                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6709                         switch (pn_page[i]) {
6710                         case LPFC_SLI4_PARAMETERS:
6711                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6712                                 break;
6713                         default:
6714                                 break;
6715                         }
6716                 }
6717                 /* Read the port's SLI4 Parameters capabilities if supported. */
6718                 if (phba->sli4_hba.pc_sli4_params.supported)
6719                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6720                 if (rc) {
6721                         mempool_free(mboxq, phba->mbox_mem_pool);
6722                         rc = -EIO;
6723                         goto out_free_bsmbx;
6724                 }
6725         }
6726
6727         /*
6728          * Get sli4 parameters that override parameters from Port capabilities.
6729          * If this call fails, it isn't critical unless the SLI4 parameters come
6730          * back in conflict.
6731          */
6732         rc = lpfc_get_sli4_parameters(phba, mboxq);
6733         if (rc) {
6734                 if_type = bf_get(lpfc_sli_intf_if_type,
6735                                  &phba->sli4_hba.sli_intf);
6736                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6737                                 &phba->sli4_hba.sli_intf);
6738                 if (phba->sli4_hba.extents_in_use &&
6739                     phba->sli4_hba.rpi_hdrs_in_use) {
6740                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6741                                 "2999 Unsupported SLI4 Parameters "
6742                                 "Extents and RPI headers enabled.\n");
6743                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6744                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6745                                 mempool_free(mboxq, phba->mbox_mem_pool);
6746                                 rc = -EIO;
6747                                 goto out_free_bsmbx;
6748                         }
6749                 }
6750                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6751                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6752                         mempool_free(mboxq, phba->mbox_mem_pool);
6753                         rc = -EIO;
6754                         goto out_free_bsmbx;
6755                 }
6756         }
6757
6758         /*
6759          * 1 for cmd, 1 for rsp, NVME adds an extra one
6760          * for boundary conditions in its max_sgl_segment template.
6761          */
6762         extra = 2;
6763         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6764                 extra++;
6765
6766         /*
6767          * It doesn't matter what family our adapter is in, we are
6768          * limited to 2 Pages, 512 SGEs, for our SGL.
6769          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6770          */
6771         max_buf_size = (2 * SLI4_PAGE_SIZE);
6772
6773         /*
6774          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6775          * used to create the sg_dma_buf_pool must be calculated.
6776          */
6777         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6778                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6779
6780                 /*
6781                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6782                  * the FCP rsp, and a SGE. Sice we have no control
6783                  * over how many protection segments the SCSI Layer
6784                  * will hand us (ie: there could be one for every block
6785                  * in the IO), just allocate enough SGEs to accomidate
6786                  * our max amount and we need to limit lpfc_sg_seg_cnt
6787                  * to minimize the risk of running out.
6788                  */
6789                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6790                                 sizeof(struct fcp_rsp) + max_buf_size;
6791
6792                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6793                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6794
6795                 /*
6796                  * If supporting DIF, reduce the seg count for scsi to
6797                  * allow room for the DIF sges.
6798                  */
6799                 if (phba->cfg_enable_bg &&
6800                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6801                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6802                 else
6803                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6804
6805         } else {
6806                 /*
6807                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6808                  * the FCP rsp, a SGE for each, and a SGE for up to
6809                  * cfg_sg_seg_cnt data segments.
6810                  */
6811                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6812                                 sizeof(struct fcp_rsp) +
6813                                 ((phba->cfg_sg_seg_cnt + extra) *
6814                                 sizeof(struct sli4_sge));
6815
6816                 /* Total SGEs for scsi_sg_list */
6817                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6818                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6819
6820                 /*
6821                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6822                  * need to post 1 page for the SGL.
6823                  */
6824         }
6825
6826         if (phba->cfg_xpsgl && !phba->nvmet_support)
6827                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6828         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6829                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6830         else
6831                 phba->cfg_sg_dma_buf_size =
6832                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6833
6834         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6835                                sizeof(struct sli4_sge);
6836
6837         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6838         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6839                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6840                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6841                                         "6300 Reducing NVME sg segment "
6842                                         "cnt to %d\n",
6843                                         LPFC_MAX_NVME_SEG_CNT);
6844                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6845                 } else
6846                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6847         }
6848
6849         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6850                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6851                         "total:%d scsi:%d nvme:%d\n",
6852                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6853                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6854                         phba->cfg_nvme_seg_cnt);
6855
6856         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6857                 i = phba->cfg_sg_dma_buf_size;
6858         else
6859                 i = SLI4_PAGE_SIZE;
6860
6861         phba->lpfc_sg_dma_buf_pool =
6862                         dma_pool_create("lpfc_sg_dma_buf_pool",
6863                                         &phba->pcidev->dev,
6864                                         phba->cfg_sg_dma_buf_size,
6865                                         i, 0);
6866         if (!phba->lpfc_sg_dma_buf_pool)
6867                 goto out_free_bsmbx;
6868
6869         phba->lpfc_cmd_rsp_buf_pool =
6870                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6871                                         &phba->pcidev->dev,
6872                                         sizeof(struct fcp_cmnd) +
6873                                         sizeof(struct fcp_rsp),
6874                                         i, 0);
6875         if (!phba->lpfc_cmd_rsp_buf_pool)
6876                 goto out_free_sg_dma_buf;
6877
6878         mempool_free(mboxq, phba->mbox_mem_pool);
6879
6880         /* Verify OAS is supported */
6881         lpfc_sli4_oas_verify(phba);
6882
6883         /* Verify RAS support on adapter */
6884         lpfc_sli4_ras_init(phba);
6885
6886         /* Verify all the SLI4 queues */
6887         rc = lpfc_sli4_queue_verify(phba);
6888         if (rc)
6889                 goto out_free_cmd_rsp_buf;
6890
6891         /* Create driver internal CQE event pool */
6892         rc = lpfc_sli4_cq_event_pool_create(phba);
6893         if (rc)
6894                 goto out_free_cmd_rsp_buf;
6895
6896         /* Initialize sgl lists per host */
6897         lpfc_init_sgl_list(phba);
6898
6899         /* Allocate and initialize active sgl array */
6900         rc = lpfc_init_active_sgl_array(phba);
6901         if (rc) {
6902                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6903                                 "1430 Failed to initialize sgl list.\n");
6904                 goto out_destroy_cq_event_pool;
6905         }
6906         rc = lpfc_sli4_init_rpi_hdrs(phba);
6907         if (rc) {
6908                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6909                                 "1432 Failed to initialize rpi headers.\n");
6910                 goto out_free_active_sgl;
6911         }
6912
6913         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6914         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6915         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6916                                          GFP_KERNEL);
6917         if (!phba->fcf.fcf_rr_bmask) {
6918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6919                                 "2759 Failed allocate memory for FCF round "
6920                                 "robin failover bmask\n");
6921                 rc = -ENOMEM;
6922                 goto out_remove_rpi_hdrs;
6923         }
6924
6925         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6926                                             sizeof(struct lpfc_hba_eq_hdl),
6927                                             GFP_KERNEL);
6928         if (!phba->sli4_hba.hba_eq_hdl) {
6929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6930                                 "2572 Failed allocate memory for "
6931                                 "fast-path per-EQ handle array\n");
6932                 rc = -ENOMEM;
6933                 goto out_free_fcf_rr_bmask;
6934         }
6935
6936         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6937                                         sizeof(struct lpfc_vector_map_info),
6938                                         GFP_KERNEL);
6939         if (!phba->sli4_hba.cpu_map) {
6940                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6941                                 "3327 Failed allocate memory for msi-x "
6942                                 "interrupt vector mapping\n");
6943                 rc = -ENOMEM;
6944                 goto out_free_hba_eq_hdl;
6945         }
6946
6947         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6948         if (!phba->sli4_hba.eq_info) {
6949                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6950                                 "3321 Failed allocation for per_cpu stats\n");
6951                 rc = -ENOMEM;
6952                 goto out_free_hba_cpu_map;
6953         }
6954
6955 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
6956         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
6957         if (!phba->sli4_hba.c_stat) {
6958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6959                                 "3332 Failed allocating per cpu hdwq stats\n");
6960                 rc = -ENOMEM;
6961                 goto out_free_hba_eq_info;
6962         }
6963 #endif
6964
6965         /*
6966          * Enable sr-iov virtual functions if supported and configured
6967          * through the module parameter.
6968          */
6969         if (phba->cfg_sriov_nr_virtfn > 0) {
6970                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6971                                                  phba->cfg_sriov_nr_virtfn);
6972                 if (rc) {
6973                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6974                                         "3020 Requested number of SR-IOV "
6975                                         "virtual functions (%d) is not "
6976                                         "supported\n",
6977                                         phba->cfg_sriov_nr_virtfn);
6978                         phba->cfg_sriov_nr_virtfn = 0;
6979                 }
6980         }
6981
6982         return 0;
6983
6984 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
6985 out_free_hba_eq_info:
6986         free_percpu(phba->sli4_hba.eq_info);
6987 #endif
6988 out_free_hba_cpu_map:
6989         kfree(phba->sli4_hba.cpu_map);
6990 out_free_hba_eq_hdl:
6991         kfree(phba->sli4_hba.hba_eq_hdl);
6992 out_free_fcf_rr_bmask:
6993         kfree(phba->fcf.fcf_rr_bmask);
6994 out_remove_rpi_hdrs:
6995         lpfc_sli4_remove_rpi_hdrs(phba);
6996 out_free_active_sgl:
6997         lpfc_free_active_sgl(phba);
6998 out_destroy_cq_event_pool:
6999         lpfc_sli4_cq_event_pool_destroy(phba);
7000 out_free_cmd_rsp_buf:
7001         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
7002         phba->lpfc_cmd_rsp_buf_pool = NULL;
7003 out_free_sg_dma_buf:
7004         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7005         phba->lpfc_sg_dma_buf_pool = NULL;
7006 out_free_bsmbx:
7007         lpfc_destroy_bootstrap_mbox(phba);
7008 out_free_mem:
7009         lpfc_mem_free(phba);
7010         return rc;
7011 }
7012
7013 /**
7014  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
7015  * @phba: pointer to lpfc hba data structure.
7016  *
7017  * This routine is invoked to unset the driver internal resources set up
7018  * specific for supporting the SLI-4 HBA device it attached to.
7019  **/
7020 static void
7021 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
7022 {
7023         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7024
7025         free_percpu(phba->sli4_hba.eq_info);
7026 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7027         free_percpu(phba->sli4_hba.c_stat);
7028 #endif
7029
7030         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
7031         kfree(phba->sli4_hba.cpu_map);
7032         phba->sli4_hba.num_possible_cpu = 0;
7033         phba->sli4_hba.num_present_cpu = 0;
7034         phba->sli4_hba.curr_disp_cpu = 0;
7035         cpumask_clear(&phba->sli4_hba.numa_mask);
7036
7037         /* Free memory allocated for fast-path work queue handles */
7038         kfree(phba->sli4_hba.hba_eq_hdl);
7039
7040         /* Free the allocated rpi headers. */
7041         lpfc_sli4_remove_rpi_hdrs(phba);
7042         lpfc_sli4_remove_rpis(phba);
7043
7044         /* Free eligible FCF index bmask */
7045         kfree(phba->fcf.fcf_rr_bmask);
7046
7047         /* Free the ELS sgl list */
7048         lpfc_free_active_sgl(phba);
7049         lpfc_free_els_sgl_list(phba);
7050         lpfc_free_nvmet_sgl_list(phba);
7051
7052         /* Free the completion queue EQ event pool */
7053         lpfc_sli4_cq_event_release_all(phba);
7054         lpfc_sli4_cq_event_pool_destroy(phba);
7055
7056         /* Release resource identifiers. */
7057         lpfc_sli4_dealloc_resource_identifiers(phba);
7058
7059         /* Free the bsmbx region. */
7060         lpfc_destroy_bootstrap_mbox(phba);
7061
7062         /* Free the SLI Layer memory with SLI4 HBAs */
7063         lpfc_mem_free_all(phba);
7064
7065         /* Free the current connect table */
7066         list_for_each_entry_safe(conn_entry, next_conn_entry,
7067                 &phba->fcf_conn_rec_list, list) {
7068                 list_del_init(&conn_entry->list);
7069                 kfree(conn_entry);
7070         }
7071
7072         return;
7073 }
7074
7075 /**
7076  * lpfc_init_api_table_setup - Set up init api function jump table
7077  * @phba: The hba struct for which this call is being executed.
7078  * @dev_grp: The HBA PCI-Device group number.
7079  *
7080  * This routine sets up the device INIT interface API function jump table
7081  * in @phba struct.
7082  *
7083  * Returns: 0 - success, -ENODEV - failure.
7084  **/
7085 int
7086 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7087 {
7088         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7089         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7090         phba->lpfc_selective_reset = lpfc_selective_reset;
7091         switch (dev_grp) {
7092         case LPFC_PCI_DEV_LP:
7093                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7094                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7095                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7096                 break;
7097         case LPFC_PCI_DEV_OC:
7098                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7099                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7100                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7101                 break;
7102         default:
7103                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7104                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7105                                 dev_grp);
7106                 return -ENODEV;
7107                 break;
7108         }
7109         return 0;
7110 }
7111
7112 /**
7113  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7114  * @phba: pointer to lpfc hba data structure.
7115  *
7116  * This routine is invoked to set up the driver internal resources after the
7117  * device specific resource setup to support the HBA device it attached to.
7118  *
7119  * Return codes
7120  *      0 - successful
7121  *      other values - error
7122  **/
7123 static int
7124 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7125 {
7126         int error;
7127
7128         /* Startup the kernel thread for this host adapter. */
7129         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7130                                           "lpfc_worker_%d", phba->brd_no);
7131         if (IS_ERR(phba->worker_thread)) {
7132                 error = PTR_ERR(phba->worker_thread);
7133                 return error;
7134         }
7135
7136         return 0;
7137 }
7138
7139 /**
7140  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7141  * @phba: pointer to lpfc hba data structure.
7142  *
7143  * This routine is invoked to unset the driver internal resources set up after
7144  * the device specific resource setup for supporting the HBA device it
7145  * attached to.
7146  **/
7147 static void
7148 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7149 {
7150         if (phba->wq) {
7151                 flush_workqueue(phba->wq);
7152                 destroy_workqueue(phba->wq);
7153                 phba->wq = NULL;
7154         }
7155
7156         /* Stop kernel worker thread */
7157         if (phba->worker_thread)
7158                 kthread_stop(phba->worker_thread);
7159 }
7160
7161 /**
7162  * lpfc_free_iocb_list - Free iocb list.
7163  * @phba: pointer to lpfc hba data structure.
7164  *
7165  * This routine is invoked to free the driver's IOCB list and memory.
7166  **/
7167 void
7168 lpfc_free_iocb_list(struct lpfc_hba *phba)
7169 {
7170         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7171
7172         spin_lock_irq(&phba->hbalock);
7173         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7174                                  &phba->lpfc_iocb_list, list) {
7175                 list_del(&iocbq_entry->list);
7176                 kfree(iocbq_entry);
7177                 phba->total_iocbq_bufs--;
7178         }
7179         spin_unlock_irq(&phba->hbalock);
7180
7181         return;
7182 }
7183
7184 /**
7185  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7186  * @phba: pointer to lpfc hba data structure.
7187  *
7188  * This routine is invoked to allocate and initizlize the driver's IOCB
7189  * list and set up the IOCB tag array accordingly.
7190  *
7191  * Return codes
7192  *      0 - successful
7193  *      other values - error
7194  **/
7195 int
7196 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7197 {
7198         struct lpfc_iocbq *iocbq_entry = NULL;
7199         uint16_t iotag;
7200         int i;
7201
7202         /* Initialize and populate the iocb list per host.  */
7203         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7204         for (i = 0; i < iocb_count; i++) {
7205                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7206                 if (iocbq_entry == NULL) {
7207                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7208                                 "expected %d count. Unloading driver.\n",
7209                                 __func__, i, iocb_count);
7210                         goto out_free_iocbq;
7211                 }
7212
7213                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7214                 if (iotag == 0) {
7215                         kfree(iocbq_entry);
7216                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7217                                 "Unloading driver.\n", __func__);
7218                         goto out_free_iocbq;
7219                 }
7220                 iocbq_entry->sli4_lxritag = NO_XRI;
7221                 iocbq_entry->sli4_xritag = NO_XRI;
7222
7223                 spin_lock_irq(&phba->hbalock);
7224                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7225                 phba->total_iocbq_bufs++;
7226                 spin_unlock_irq(&phba->hbalock);
7227         }
7228
7229         return 0;
7230
7231 out_free_iocbq:
7232         lpfc_free_iocb_list(phba);
7233
7234         return -ENOMEM;
7235 }
7236
7237 /**
7238  * lpfc_free_sgl_list - Free a given sgl list.
7239  * @phba: pointer to lpfc hba data structure.
7240  * @sglq_list: pointer to the head of sgl list.
7241  *
7242  * This routine is invoked to free a give sgl list and memory.
7243  **/
7244 void
7245 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7246 {
7247         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7248
7249         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7250                 list_del(&sglq_entry->list);
7251                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7252                 kfree(sglq_entry);
7253         }
7254 }
7255
7256 /**
7257  * lpfc_free_els_sgl_list - Free els sgl list.
7258  * @phba: pointer to lpfc hba data structure.
7259  *
7260  * This routine is invoked to free the driver's els sgl list and memory.
7261  **/
7262 static void
7263 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7264 {
7265         LIST_HEAD(sglq_list);
7266
7267         /* Retrieve all els sgls from driver list */
7268         spin_lock_irq(&phba->hbalock);
7269         spin_lock(&phba->sli4_hba.sgl_list_lock);
7270         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7271         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7272         spin_unlock_irq(&phba->hbalock);
7273
7274         /* Now free the sgl list */
7275         lpfc_free_sgl_list(phba, &sglq_list);
7276 }
7277
7278 /**
7279  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7280  * @phba: pointer to lpfc hba data structure.
7281  *
7282  * This routine is invoked to free the driver's nvmet sgl list and memory.
7283  **/
7284 static void
7285 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7286 {
7287         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7288         LIST_HEAD(sglq_list);
7289
7290         /* Retrieve all nvmet sgls from driver list */
7291         spin_lock_irq(&phba->hbalock);
7292         spin_lock(&phba->sli4_hba.sgl_list_lock);
7293         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7294         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7295         spin_unlock_irq(&phba->hbalock);
7296
7297         /* Now free the sgl list */
7298         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7299                 list_del(&sglq_entry->list);
7300                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7301                 kfree(sglq_entry);
7302         }
7303
7304         /* Update the nvmet_xri_cnt to reflect no current sgls.
7305          * The next initialization cycle sets the count and allocates
7306          * the sgls over again.
7307          */
7308         phba->sli4_hba.nvmet_xri_cnt = 0;
7309 }
7310
7311 /**
7312  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7313  * @phba: pointer to lpfc hba data structure.
7314  *
7315  * This routine is invoked to allocate the driver's active sgl memory.
7316  * This array will hold the sglq_entry's for active IOs.
7317  **/
7318 static int
7319 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7320 {
7321         int size;
7322         size = sizeof(struct lpfc_sglq *);
7323         size *= phba->sli4_hba.max_cfg_param.max_xri;
7324
7325         phba->sli4_hba.lpfc_sglq_active_list =
7326                 kzalloc(size, GFP_KERNEL);
7327         if (!phba->sli4_hba.lpfc_sglq_active_list)
7328                 return -ENOMEM;
7329         return 0;
7330 }
7331
7332 /**
7333  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7334  * @phba: pointer to lpfc hba data structure.
7335  *
7336  * This routine is invoked to walk through the array of active sglq entries
7337  * and free all of the resources.
7338  * This is just a place holder for now.
7339  **/
7340 static void
7341 lpfc_free_active_sgl(struct lpfc_hba *phba)
7342 {
7343         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7344 }
7345
7346 /**
7347  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7348  * @phba: pointer to lpfc hba data structure.
7349  *
7350  * This routine is invoked to allocate and initizlize the driver's sgl
7351  * list and set up the sgl xritag tag array accordingly.
7352  *
7353  **/
7354 static void
7355 lpfc_init_sgl_list(struct lpfc_hba *phba)
7356 {
7357         /* Initialize and populate the sglq list per host/VF. */
7358         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7359         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7360         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7361         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7362
7363         /* els xri-sgl book keeping */
7364         phba->sli4_hba.els_xri_cnt = 0;
7365
7366         /* nvme xri-buffer book keeping */
7367         phba->sli4_hba.io_xri_cnt = 0;
7368 }
7369
7370 /**
7371  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7372  * @phba: pointer to lpfc hba data structure.
7373  *
7374  * This routine is invoked to post rpi header templates to the
7375  * port for those SLI4 ports that do not support extents.  This routine
7376  * posts a PAGE_SIZE memory region to the port to hold up to
7377  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7378  * and should be called only when interrupts are disabled.
7379  *
7380  * Return codes
7381  *      0 - successful
7382  *      -ERROR - otherwise.
7383  **/
7384 int
7385 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7386 {
7387         int rc = 0;
7388         struct lpfc_rpi_hdr *rpi_hdr;
7389
7390         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7391         if (!phba->sli4_hba.rpi_hdrs_in_use)
7392                 return rc;
7393         if (phba->sli4_hba.extents_in_use)
7394                 return -EIO;
7395
7396         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7397         if (!rpi_hdr) {
7398                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7399                                 "0391 Error during rpi post operation\n");
7400                 lpfc_sli4_remove_rpis(phba);
7401                 rc = -ENODEV;
7402         }
7403
7404         return rc;
7405 }
7406
7407 /**
7408  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7409  * @phba: pointer to lpfc hba data structure.
7410  *
7411  * This routine is invoked to allocate a single 4KB memory region to
7412  * support rpis and stores them in the phba.  This single region
7413  * provides support for up to 64 rpis.  The region is used globally
7414  * by the device.
7415  *
7416  * Returns:
7417  *   A valid rpi hdr on success.
7418  *   A NULL pointer on any failure.
7419  **/
7420 struct lpfc_rpi_hdr *
7421 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7422 {
7423         uint16_t rpi_limit, curr_rpi_range;
7424         struct lpfc_dmabuf *dmabuf;
7425         struct lpfc_rpi_hdr *rpi_hdr;
7426
7427         /*
7428          * If the SLI4 port supports extents, posting the rpi header isn't
7429          * required.  Set the expected maximum count and let the actual value
7430          * get set when extents are fully allocated.
7431          */
7432         if (!phba->sli4_hba.rpi_hdrs_in_use)
7433                 return NULL;
7434         if (phba->sli4_hba.extents_in_use)
7435                 return NULL;
7436
7437         /* The limit on the logical index is just the max_rpi count. */
7438         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7439
7440         spin_lock_irq(&phba->hbalock);
7441         /*
7442          * Establish the starting RPI in this header block.  The starting
7443          * rpi is normalized to a zero base because the physical rpi is
7444          * port based.
7445          */
7446         curr_rpi_range = phba->sli4_hba.next_rpi;
7447         spin_unlock_irq(&phba->hbalock);
7448
7449         /* Reached full RPI range */
7450         if (curr_rpi_range == rpi_limit)
7451                 return NULL;
7452
7453         /*
7454          * First allocate the protocol header region for the port.  The
7455          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7456          */
7457         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7458         if (!dmabuf)
7459                 return NULL;
7460
7461         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7462                                           LPFC_HDR_TEMPLATE_SIZE,
7463                                           &dmabuf->phys, GFP_KERNEL);
7464         if (!dmabuf->virt) {
7465                 rpi_hdr = NULL;
7466                 goto err_free_dmabuf;
7467         }
7468
7469         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7470                 rpi_hdr = NULL;
7471                 goto err_free_coherent;
7472         }
7473
7474         /* Save the rpi header data for cleanup later. */
7475         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7476         if (!rpi_hdr)
7477                 goto err_free_coherent;
7478
7479         rpi_hdr->dmabuf = dmabuf;
7480         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7481         rpi_hdr->page_count = 1;
7482         spin_lock_irq(&phba->hbalock);
7483
7484         /* The rpi_hdr stores the logical index only. */
7485         rpi_hdr->start_rpi = curr_rpi_range;
7486         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7487         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7488
7489         spin_unlock_irq(&phba->hbalock);
7490         return rpi_hdr;
7491
7492  err_free_coherent:
7493         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7494                           dmabuf->virt, dmabuf->phys);
7495  err_free_dmabuf:
7496         kfree(dmabuf);
7497         return NULL;
7498 }
7499
7500 /**
7501  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7502  * @phba: pointer to lpfc hba data structure.
7503  *
7504  * This routine is invoked to remove all memory resources allocated
7505  * to support rpis for SLI4 ports not supporting extents. This routine
7506  * presumes the caller has released all rpis consumed by fabric or port
7507  * logins and is prepared to have the header pages removed.
7508  **/
7509 void
7510 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7511 {
7512         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7513
7514         if (!phba->sli4_hba.rpi_hdrs_in_use)
7515                 goto exit;
7516
7517         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7518                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7519                 list_del(&rpi_hdr->list);
7520                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7521                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7522                 kfree(rpi_hdr->dmabuf);
7523                 kfree(rpi_hdr);
7524         }
7525  exit:
7526         /* There are no rpis available to the port now. */
7527         phba->sli4_hba.next_rpi = 0;
7528 }
7529
7530 /**
7531  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7532  * @pdev: pointer to pci device data structure.
7533  *
7534  * This routine is invoked to allocate the driver hba data structure for an
7535  * HBA device. If the allocation is successful, the phba reference to the
7536  * PCI device data structure is set.
7537  *
7538  * Return codes
7539  *      pointer to @phba - successful
7540  *      NULL - error
7541  **/
7542 static struct lpfc_hba *
7543 lpfc_hba_alloc(struct pci_dev *pdev)
7544 {
7545         struct lpfc_hba *phba;
7546
7547         /* Allocate memory for HBA structure */
7548         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7549         if (!phba) {
7550                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7551                 return NULL;
7552         }
7553
7554         /* Set reference to PCI device in HBA structure */
7555         phba->pcidev = pdev;
7556
7557         /* Assign an unused board number */
7558         phba->brd_no = lpfc_get_instance();
7559         if (phba->brd_no < 0) {
7560                 kfree(phba);
7561                 return NULL;
7562         }
7563         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7564
7565         spin_lock_init(&phba->ct_ev_lock);
7566         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7567
7568         return phba;
7569 }
7570
7571 /**
7572  * lpfc_hba_free - Free driver hba data structure with a device.
7573  * @phba: pointer to lpfc hba data structure.
7574  *
7575  * This routine is invoked to free the driver hba data structure with an
7576  * HBA device.
7577  **/
7578 static void
7579 lpfc_hba_free(struct lpfc_hba *phba)
7580 {
7581         if (phba->sli_rev == LPFC_SLI_REV4)
7582                 kfree(phba->sli4_hba.hdwq);
7583
7584         /* Release the driver assigned board number */
7585         idr_remove(&lpfc_hba_index, phba->brd_no);
7586
7587         /* Free memory allocated with sli3 rings */
7588         kfree(phba->sli.sli3_ring);
7589         phba->sli.sli3_ring = NULL;
7590
7591         kfree(phba);
7592         return;
7593 }
7594
7595 /**
7596  * lpfc_create_shost - Create hba physical port with associated scsi host.
7597  * @phba: pointer to lpfc hba data structure.
7598  *
7599  * This routine is invoked to create HBA physical port and associate a SCSI
7600  * host with it.
7601  *
7602  * Return codes
7603  *      0 - successful
7604  *      other values - error
7605  **/
7606 static int
7607 lpfc_create_shost(struct lpfc_hba *phba)
7608 {
7609         struct lpfc_vport *vport;
7610         struct Scsi_Host  *shost;
7611
7612         /* Initialize HBA FC structure */
7613         phba->fc_edtov = FF_DEF_EDTOV;
7614         phba->fc_ratov = FF_DEF_RATOV;
7615         phba->fc_altov = FF_DEF_ALTOV;
7616         phba->fc_arbtov = FF_DEF_ARBTOV;
7617
7618         atomic_set(&phba->sdev_cnt, 0);
7619         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7620         if (!vport)
7621                 return -ENODEV;
7622
7623         shost = lpfc_shost_from_vport(vport);
7624         phba->pport = vport;
7625
7626         if (phba->nvmet_support) {
7627                 /* Only 1 vport (pport) will support NVME target */
7628                 phba->targetport = NULL;
7629                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7630                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7631                                 "6076 NVME Target Found\n");
7632         }
7633
7634         lpfc_debugfs_initialize(vport);
7635         /* Put reference to SCSI host to driver's device private data */
7636         pci_set_drvdata(phba->pcidev, shost);
7637
7638         /*
7639          * At this point we are fully registered with PSA. In addition,
7640          * any initial discovery should be completed.
7641          */
7642         vport->load_flag |= FC_ALLOW_FDMI;
7643         if (phba->cfg_enable_SmartSAN ||
7644             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7645
7646                 /* Setup appropriate attribute masks */
7647                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7648                 if (phba->cfg_enable_SmartSAN)
7649                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7650                 else
7651                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7652         }
7653         return 0;
7654 }
7655
7656 /**
7657  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7658  * @phba: pointer to lpfc hba data structure.
7659  *
7660  * This routine is invoked to destroy HBA physical port and the associated
7661  * SCSI host.
7662  **/
7663 static void
7664 lpfc_destroy_shost(struct lpfc_hba *phba)
7665 {
7666         struct lpfc_vport *vport = phba->pport;
7667
7668         /* Destroy physical port that associated with the SCSI host */
7669         destroy_port(vport);
7670
7671         return;
7672 }
7673
7674 /**
7675  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7676  * @phba: pointer to lpfc hba data structure.
7677  * @shost: the shost to be used to detect Block guard settings.
7678  *
7679  * This routine sets up the local Block guard protocol settings for @shost.
7680  * This routine also allocates memory for debugging bg buffers.
7681  **/
7682 static void
7683 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7684 {
7685         uint32_t old_mask;
7686         uint32_t old_guard;
7687
7688         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7689                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7690                                 "1478 Registering BlockGuard with the "
7691                                 "SCSI layer\n");
7692
7693                 old_mask = phba->cfg_prot_mask;
7694                 old_guard = phba->cfg_prot_guard;
7695
7696                 /* Only allow supported values */
7697                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7698                         SHOST_DIX_TYPE0_PROTECTION |
7699                         SHOST_DIX_TYPE1_PROTECTION);
7700                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7701                                          SHOST_DIX_GUARD_CRC);
7702
7703                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7704                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7705                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7706
7707                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7708                         if ((old_mask != phba->cfg_prot_mask) ||
7709                                 (old_guard != phba->cfg_prot_guard))
7710                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7711                                         "1475 Registering BlockGuard with the "
7712                                         "SCSI layer: mask %d  guard %d\n",
7713                                         phba->cfg_prot_mask,
7714                                         phba->cfg_prot_guard);
7715
7716                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7717                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7718                 } else
7719                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7720                                 "1479 Not Registering BlockGuard with the SCSI "
7721                                 "layer, Bad protection parameters: %d %d\n",
7722                                 old_mask, old_guard);
7723         }
7724 }
7725
7726 /**
7727  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7728  * @phba: pointer to lpfc hba data structure.
7729  *
7730  * This routine is invoked to perform all the necessary post initialization
7731  * setup for the device.
7732  **/
7733 static void
7734 lpfc_post_init_setup(struct lpfc_hba *phba)
7735 {
7736         struct Scsi_Host  *shost;
7737         struct lpfc_adapter_event_header adapter_event;
7738
7739         /* Get the default values for Model Name and Description */
7740         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7741
7742         /*
7743          * hba setup may have changed the hba_queue_depth so we need to
7744          * adjust the value of can_queue.
7745          */
7746         shost = pci_get_drvdata(phba->pcidev);
7747         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7748
7749         lpfc_host_attrib_init(shost);
7750
7751         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7752                 spin_lock_irq(shost->host_lock);
7753                 lpfc_poll_start_timer(phba);
7754                 spin_unlock_irq(shost->host_lock);
7755         }
7756
7757         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7758                         "0428 Perform SCSI scan\n");
7759         /* Send board arrival event to upper layer */
7760         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7761         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7762         fc_host_post_vendor_event(shost, fc_get_event_number(),
7763                                   sizeof(adapter_event),
7764                                   (char *) &adapter_event,
7765                                   LPFC_NL_VENDOR_ID);
7766         return;
7767 }
7768
7769 /**
7770  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7771  * @phba: pointer to lpfc hba data structure.
7772  *
7773  * This routine is invoked to set up the PCI device memory space for device
7774  * with SLI-3 interface spec.
7775  *
7776  * Return codes
7777  *      0 - successful
7778  *      other values - error
7779  **/
7780 static int
7781 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7782 {
7783         struct pci_dev *pdev = phba->pcidev;
7784         unsigned long bar0map_len, bar2map_len;
7785         int i, hbq_count;
7786         void *ptr;
7787         int error;
7788
7789         if (!pdev)
7790                 return -ENODEV;
7791
7792         /* Set the device DMA mask size */
7793         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7794         if (error)
7795                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7796         if (error)
7797                 return error;
7798         error = -ENODEV;
7799
7800         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7801          * required by each mapping.
7802          */
7803         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7804         bar0map_len = pci_resource_len(pdev, 0);
7805
7806         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7807         bar2map_len = pci_resource_len(pdev, 2);
7808
7809         /* Map HBA SLIM to a kernel virtual address. */
7810         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7811         if (!phba->slim_memmap_p) {
7812                 dev_printk(KERN_ERR, &pdev->dev,
7813                            "ioremap failed for SLIM memory.\n");
7814                 goto out;
7815         }
7816
7817         /* Map HBA Control Registers to a kernel virtual address. */
7818         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7819         if (!phba->ctrl_regs_memmap_p) {
7820                 dev_printk(KERN_ERR, &pdev->dev,
7821                            "ioremap failed for HBA control registers.\n");
7822                 goto out_iounmap_slim;
7823         }
7824
7825         /* Allocate memory for SLI-2 structures */
7826         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7827                                                &phba->slim2p.phys, GFP_KERNEL);
7828         if (!phba->slim2p.virt)
7829                 goto out_iounmap;
7830
7831         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7832         phba->mbox_ext = (phba->slim2p.virt +
7833                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7834         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7835         phba->IOCBs = (phba->slim2p.virt +
7836                        offsetof(struct lpfc_sli2_slim, IOCBs));
7837
7838         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7839                                                  lpfc_sli_hbq_size(),
7840                                                  &phba->hbqslimp.phys,
7841                                                  GFP_KERNEL);
7842         if (!phba->hbqslimp.virt)
7843                 goto out_free_slim;
7844
7845         hbq_count = lpfc_sli_hbq_count();
7846         ptr = phba->hbqslimp.virt;
7847         for (i = 0; i < hbq_count; ++i) {
7848                 phba->hbqs[i].hbq_virt = ptr;
7849                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7850                 ptr += (lpfc_hbq_defs[i]->entry_count *
7851                         sizeof(struct lpfc_hbq_entry));
7852         }
7853         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7854         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7855
7856         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7857
7858         phba->MBslimaddr = phba->slim_memmap_p;
7859         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7860         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7861         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7862         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7863
7864         return 0;
7865
7866 out_free_slim:
7867         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7868                           phba->slim2p.virt, phba->slim2p.phys);
7869 out_iounmap:
7870         iounmap(phba->ctrl_regs_memmap_p);
7871 out_iounmap_slim:
7872         iounmap(phba->slim_memmap_p);
7873 out:
7874         return error;
7875 }
7876
7877 /**
7878  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7879  * @phba: pointer to lpfc hba data structure.
7880  *
7881  * This routine is invoked to unset the PCI device memory space for device
7882  * with SLI-3 interface spec.
7883  **/
7884 static void
7885 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7886 {
7887         struct pci_dev *pdev;
7888
7889         /* Obtain PCI device reference */
7890         if (!phba->pcidev)
7891                 return;
7892         else
7893                 pdev = phba->pcidev;
7894
7895         /* Free coherent DMA memory allocated */
7896         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7897                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7898         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7899                           phba->slim2p.virt, phba->slim2p.phys);
7900
7901         /* I/O memory unmap */
7902         iounmap(phba->ctrl_regs_memmap_p);
7903         iounmap(phba->slim_memmap_p);
7904
7905         return;
7906 }
7907
7908 /**
7909  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7910  * @phba: pointer to lpfc hba data structure.
7911  *
7912  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7913  * done and check status.
7914  *
7915  * Return 0 if successful, otherwise -ENODEV.
7916  **/
7917 int
7918 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7919 {
7920         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7921         struct lpfc_register reg_data;
7922         int i, port_error = 0;
7923         uint32_t if_type;
7924
7925         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7926         memset(&reg_data, 0, sizeof(reg_data));
7927         if (!phba->sli4_hba.PSMPHRregaddr)
7928                 return -ENODEV;
7929
7930         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7931         for (i = 0; i < 3000; i++) {
7932                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7933                         &portsmphr_reg.word0) ||
7934                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7935                         /* Port has a fatal POST error, break out */
7936                         port_error = -ENODEV;
7937                         break;
7938                 }
7939                 if (LPFC_POST_STAGE_PORT_READY ==
7940                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7941                         break;
7942                 msleep(10);
7943         }
7944
7945         /*
7946          * If there was a port error during POST, then don't proceed with
7947          * other register reads as the data may not be valid.  Just exit.
7948          */
7949         if (port_error) {
7950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7951                         "1408 Port Failed POST - portsmphr=0x%x, "
7952                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7953                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7954                         portsmphr_reg.word0,
7955                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7956                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7957                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7958                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7959                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7960                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7961                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7962                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7963         } else {
7964                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7965                                 "2534 Device Info: SLIFamily=0x%x, "
7966                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7967                                 "SLIHint_2=0x%x, FT=0x%x\n",
7968                                 bf_get(lpfc_sli_intf_sli_family,
7969                                        &phba->sli4_hba.sli_intf),
7970                                 bf_get(lpfc_sli_intf_slirev,
7971                                        &phba->sli4_hba.sli_intf),
7972                                 bf_get(lpfc_sli_intf_if_type,
7973                                        &phba->sli4_hba.sli_intf),
7974                                 bf_get(lpfc_sli_intf_sli_hint1,
7975                                        &phba->sli4_hba.sli_intf),
7976                                 bf_get(lpfc_sli_intf_sli_hint2,
7977                                        &phba->sli4_hba.sli_intf),
7978                                 bf_get(lpfc_sli_intf_func_type,
7979                                        &phba->sli4_hba.sli_intf));
7980                 /*
7981                  * Check for other Port errors during the initialization
7982                  * process.  Fail the load if the port did not come up
7983                  * correctly.
7984                  */
7985                 if_type = bf_get(lpfc_sli_intf_if_type,
7986                                  &phba->sli4_hba.sli_intf);
7987                 switch (if_type) {
7988                 case LPFC_SLI_INTF_IF_TYPE_0:
7989                         phba->sli4_hba.ue_mask_lo =
7990                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7991                         phba->sli4_hba.ue_mask_hi =
7992                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7993                         uerrlo_reg.word0 =
7994                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7995                         uerrhi_reg.word0 =
7996                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7997                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7998                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7999                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8000                                                 "1422 Unrecoverable Error "
8001                                                 "Detected during POST "
8002                                                 "uerr_lo_reg=0x%x, "
8003                                                 "uerr_hi_reg=0x%x, "
8004                                                 "ue_mask_lo_reg=0x%x, "
8005                                                 "ue_mask_hi_reg=0x%x\n",
8006                                                 uerrlo_reg.word0,
8007                                                 uerrhi_reg.word0,
8008                                                 phba->sli4_hba.ue_mask_lo,
8009                                                 phba->sli4_hba.ue_mask_hi);
8010                                 port_error = -ENODEV;
8011                         }
8012                         break;
8013                 case LPFC_SLI_INTF_IF_TYPE_2:
8014                 case LPFC_SLI_INTF_IF_TYPE_6:
8015                         /* Final checks.  The port status should be clean. */
8016                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8017                                 &reg_data.word0) ||
8018                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
8019                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
8020                                 phba->work_status[0] =
8021                                         readl(phba->sli4_hba.u.if_type2.
8022                                               ERR1regaddr);
8023                                 phba->work_status[1] =
8024                                         readl(phba->sli4_hba.u.if_type2.
8025                                               ERR2regaddr);
8026                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8027                                         "2888 Unrecoverable port error "
8028                                         "following POST: port status reg "
8029                                         "0x%x, port_smphr reg 0x%x, "
8030                                         "error 1=0x%x, error 2=0x%x\n",
8031                                         reg_data.word0,
8032                                         portsmphr_reg.word0,
8033                                         phba->work_status[0],
8034                                         phba->work_status[1]);
8035                                 port_error = -ENODEV;
8036                         }
8037                         break;
8038                 case LPFC_SLI_INTF_IF_TYPE_1:
8039                 default:
8040                         break;
8041                 }
8042         }
8043         return port_error;
8044 }
8045
8046 /**
8047  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8048  * @phba: pointer to lpfc hba data structure.
8049  * @if_type:  The SLI4 interface type getting configured.
8050  *
8051  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8052  * memory map.
8053  **/
8054 static void
8055 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8056 {
8057         switch (if_type) {
8058         case LPFC_SLI_INTF_IF_TYPE_0:
8059                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8060                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8061                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8062                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8063                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8064                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8065                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8066                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8067                 phba->sli4_hba.SLIINTFregaddr =
8068                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8069                 break;
8070         case LPFC_SLI_INTF_IF_TYPE_2:
8071                 phba->sli4_hba.u.if_type2.EQDregaddr =
8072                         phba->sli4_hba.conf_regs_memmap_p +
8073                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8074                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8075                         phba->sli4_hba.conf_regs_memmap_p +
8076                                                 LPFC_CTL_PORT_ER1_OFFSET;
8077                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8078                         phba->sli4_hba.conf_regs_memmap_p +
8079                                                 LPFC_CTL_PORT_ER2_OFFSET;
8080                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8081                         phba->sli4_hba.conf_regs_memmap_p +
8082                                                 LPFC_CTL_PORT_CTL_OFFSET;
8083                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8084                         phba->sli4_hba.conf_regs_memmap_p +
8085                                                 LPFC_CTL_PORT_STA_OFFSET;
8086                 phba->sli4_hba.SLIINTFregaddr =
8087                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8088                 phba->sli4_hba.PSMPHRregaddr =
8089                         phba->sli4_hba.conf_regs_memmap_p +
8090                                                 LPFC_CTL_PORT_SEM_OFFSET;
8091                 phba->sli4_hba.RQDBregaddr =
8092                         phba->sli4_hba.conf_regs_memmap_p +
8093                                                 LPFC_ULP0_RQ_DOORBELL;
8094                 phba->sli4_hba.WQDBregaddr =
8095                         phba->sli4_hba.conf_regs_memmap_p +
8096                                                 LPFC_ULP0_WQ_DOORBELL;
8097                 phba->sli4_hba.CQDBregaddr =
8098                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8099                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8100                 phba->sli4_hba.MQDBregaddr =
8101                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8102                 phba->sli4_hba.BMBXregaddr =
8103                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8104                 break;
8105         case LPFC_SLI_INTF_IF_TYPE_6:
8106                 phba->sli4_hba.u.if_type2.EQDregaddr =
8107                         phba->sli4_hba.conf_regs_memmap_p +
8108                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8109                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8110                         phba->sli4_hba.conf_regs_memmap_p +
8111                                                 LPFC_CTL_PORT_ER1_OFFSET;
8112                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8113                         phba->sli4_hba.conf_regs_memmap_p +
8114                                                 LPFC_CTL_PORT_ER2_OFFSET;
8115                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8116                         phba->sli4_hba.conf_regs_memmap_p +
8117                                                 LPFC_CTL_PORT_CTL_OFFSET;
8118                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8119                         phba->sli4_hba.conf_regs_memmap_p +
8120                                                 LPFC_CTL_PORT_STA_OFFSET;
8121                 phba->sli4_hba.PSMPHRregaddr =
8122                         phba->sli4_hba.conf_regs_memmap_p +
8123                                                 LPFC_CTL_PORT_SEM_OFFSET;
8124                 phba->sli4_hba.BMBXregaddr =
8125                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8126                 break;
8127         case LPFC_SLI_INTF_IF_TYPE_1:
8128         default:
8129                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8130                            "FATAL - unsupported SLI4 interface type - %d\n",
8131                            if_type);
8132                 break;
8133         }
8134 }
8135
8136 /**
8137  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8138  * @phba: pointer to lpfc hba data structure.
8139  *
8140  * This routine is invoked to set up SLI4 BAR1 register memory map.
8141  **/
8142 static void
8143 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8144 {
8145         switch (if_type) {
8146         case LPFC_SLI_INTF_IF_TYPE_0:
8147                 phba->sli4_hba.PSMPHRregaddr =
8148                         phba->sli4_hba.ctrl_regs_memmap_p +
8149                         LPFC_SLIPORT_IF0_SMPHR;
8150                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8151                         LPFC_HST_ISR0;
8152                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8153                         LPFC_HST_IMR0;
8154                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8155                         LPFC_HST_ISCR0;
8156                 break;
8157         case LPFC_SLI_INTF_IF_TYPE_6:
8158                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8159                         LPFC_IF6_RQ_DOORBELL;
8160                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8161                         LPFC_IF6_WQ_DOORBELL;
8162                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8163                         LPFC_IF6_CQ_DOORBELL;
8164                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8165                         LPFC_IF6_EQ_DOORBELL;
8166                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8167                         LPFC_IF6_MQ_DOORBELL;
8168                 break;
8169         case LPFC_SLI_INTF_IF_TYPE_2:
8170         case LPFC_SLI_INTF_IF_TYPE_1:
8171         default:
8172                 dev_err(&phba->pcidev->dev,
8173                            "FATAL - unsupported SLI4 interface type - %d\n",
8174                            if_type);
8175                 break;
8176         }
8177 }
8178
8179 /**
8180  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8181  * @phba: pointer to lpfc hba data structure.
8182  * @vf: virtual function number
8183  *
8184  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8185  * based on the given viftual function number, @vf.
8186  *
8187  * Return 0 if successful, otherwise -ENODEV.
8188  **/
8189 static int
8190 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8191 {
8192         if (vf > LPFC_VIR_FUNC_MAX)
8193                 return -ENODEV;
8194
8195         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8196                                 vf * LPFC_VFR_PAGE_SIZE +
8197                                         LPFC_ULP0_RQ_DOORBELL);
8198         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8199                                 vf * LPFC_VFR_PAGE_SIZE +
8200                                         LPFC_ULP0_WQ_DOORBELL);
8201         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8202                                 vf * LPFC_VFR_PAGE_SIZE +
8203                                         LPFC_EQCQ_DOORBELL);
8204         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8205         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8206                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8207         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8208                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8209         return 0;
8210 }
8211
8212 /**
8213  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8214  * @phba: pointer to lpfc hba data structure.
8215  *
8216  * This routine is invoked to create the bootstrap mailbox
8217  * region consistent with the SLI-4 interface spec.  This
8218  * routine allocates all memory necessary to communicate
8219  * mailbox commands to the port and sets up all alignment
8220  * needs.  No locks are expected to be held when calling
8221  * this routine.
8222  *
8223  * Return codes
8224  *      0 - successful
8225  *      -ENOMEM - could not allocated memory.
8226  **/
8227 static int
8228 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8229 {
8230         uint32_t bmbx_size;
8231         struct lpfc_dmabuf *dmabuf;
8232         struct dma_address *dma_address;
8233         uint32_t pa_addr;
8234         uint64_t phys_addr;
8235
8236         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8237         if (!dmabuf)
8238                 return -ENOMEM;
8239
8240         /*
8241          * The bootstrap mailbox region is comprised of 2 parts
8242          * plus an alignment restriction of 16 bytes.
8243          */
8244         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8245         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8246                                           &dmabuf->phys, GFP_KERNEL);
8247         if (!dmabuf->virt) {
8248                 kfree(dmabuf);
8249                 return -ENOMEM;
8250         }
8251
8252         /*
8253          * Initialize the bootstrap mailbox pointers now so that the register
8254          * operations are simple later.  The mailbox dma address is required
8255          * to be 16-byte aligned.  Also align the virtual memory as each
8256          * maibox is copied into the bmbx mailbox region before issuing the
8257          * command to the port.
8258          */
8259         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8260         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8261
8262         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8263                                               LPFC_ALIGN_16_BYTE);
8264         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8265                                               LPFC_ALIGN_16_BYTE);
8266
8267         /*
8268          * Set the high and low physical addresses now.  The SLI4 alignment
8269          * requirement is 16 bytes and the mailbox is posted to the port
8270          * as two 30-bit addresses.  The other data is a bit marking whether
8271          * the 30-bit address is the high or low address.
8272          * Upcast bmbx aphys to 64bits so shift instruction compiles
8273          * clean on 32 bit machines.
8274          */
8275         dma_address = &phba->sli4_hba.bmbx.dma_address;
8276         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8277         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8278         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8279                                            LPFC_BMBX_BIT1_ADDR_HI);
8280
8281         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8282         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8283                                            LPFC_BMBX_BIT1_ADDR_LO);
8284         return 0;
8285 }
8286
8287 /**
8288  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8289  * @phba: pointer to lpfc hba data structure.
8290  *
8291  * This routine is invoked to teardown the bootstrap mailbox
8292  * region and release all host resources. This routine requires
8293  * the caller to ensure all mailbox commands recovered, no
8294  * additional mailbox comands are sent, and interrupts are disabled
8295  * before calling this routine.
8296  *
8297  **/
8298 static void
8299 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8300 {
8301         dma_free_coherent(&phba->pcidev->dev,
8302                           phba->sli4_hba.bmbx.bmbx_size,
8303                           phba->sli4_hba.bmbx.dmabuf->virt,
8304                           phba->sli4_hba.bmbx.dmabuf->phys);
8305
8306         kfree(phba->sli4_hba.bmbx.dmabuf);
8307         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8308 }
8309
8310 static const char * const lpfc_topo_to_str[] = {
8311         "Loop then P2P",
8312         "Loopback",
8313         "P2P Only",
8314         "Unsupported",
8315         "Loop Only",
8316         "Unsupported",
8317         "P2P then Loop",
8318 };
8319
8320 /**
8321  * lpfc_map_topology - Map the topology read from READ_CONFIG
8322  * @phba: pointer to lpfc hba data structure.
8323  * @rdconf: pointer to read config data
8324  *
8325  * This routine is invoked to map the topology values as read
8326  * from the read config mailbox command. If the persistent
8327  * topology feature is supported, the firmware will provide the
8328  * saved topology information to be used in INIT_LINK
8329  *
8330  **/
8331 #define LINK_FLAGS_DEF  0x0
8332 #define LINK_FLAGS_P2P  0x1
8333 #define LINK_FLAGS_LOOP 0x2
8334 static void
8335 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8336 {
8337         u8 ptv, tf, pt;
8338
8339         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8340         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8341         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8342
8343         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8344                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8345                          ptv, tf, pt);
8346         if (!ptv) {
8347                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8348                                 "2019 FW does not support persistent topology "
8349                                 "Using driver parameter defined value [%s]",
8350                                 lpfc_topo_to_str[phba->cfg_topology]);
8351                 return;
8352         }
8353         /* FW supports persistent topology - override module parameter value */
8354         phba->hba_flag |= HBA_PERSISTENT_TOPO;
8355         switch (phba->pcidev->device) {
8356         case PCI_DEVICE_ID_LANCER_G7_FC:
8357         case PCI_DEVICE_ID_LANCER_G6_FC:
8358                 if (!tf) {
8359                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8360                                         ? FLAGS_TOPOLOGY_MODE_LOOP
8361                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
8362                 } else {
8363                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8364                 }
8365                 break;
8366         default:        /* G5 */
8367                 if (tf) {
8368                         /* If topology failover set - pt is '0' or '1' */
8369                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8370                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
8371                 } else {
8372                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8373                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
8374                                         : FLAGS_TOPOLOGY_MODE_LOOP);
8375                 }
8376                 break;
8377         }
8378         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8379                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8380                                 "2020 Using persistent topology value [%s]",
8381                                 lpfc_topo_to_str[phba->cfg_topology]);
8382         } else {
8383                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8384                                 "2021 Invalid topology values from FW "
8385                                 "Using driver parameter defined value [%s]",
8386                                 lpfc_topo_to_str[phba->cfg_topology]);
8387         }
8388 }
8389
8390 /**
8391  * lpfc_sli4_read_config - Get the config parameters.
8392  * @phba: pointer to lpfc hba data structure.
8393  *
8394  * This routine is invoked to read the configuration parameters from the HBA.
8395  * The configuration parameters are used to set the base and maximum values
8396  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8397  * allocation for the port.
8398  *
8399  * Return codes
8400  *      0 - successful
8401  *      -ENOMEM - No available memory
8402  *      -EIO - The mailbox failed to complete successfully.
8403  **/
8404 int
8405 lpfc_sli4_read_config(struct lpfc_hba *phba)
8406 {
8407         LPFC_MBOXQ_t *pmb;
8408         struct lpfc_mbx_read_config *rd_config;
8409         union  lpfc_sli4_cfg_shdr *shdr;
8410         uint32_t shdr_status, shdr_add_status;
8411         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8412         struct lpfc_rsrc_desc_fcfcoe *desc;
8413         char *pdesc_0;
8414         uint16_t forced_link_speed;
8415         uint32_t if_type, qmin;
8416         int length, i, rc = 0, rc2;
8417
8418         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8419         if (!pmb) {
8420                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8421                                 "2011 Unable to allocate memory for issuing "
8422                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8423                 return -ENOMEM;
8424         }
8425
8426         lpfc_read_config(phba, pmb);
8427
8428         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8429         if (rc != MBX_SUCCESS) {
8430                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8431                         "2012 Mailbox failed , mbxCmd x%x "
8432                         "READ_CONFIG, mbxStatus x%x\n",
8433                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8434                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8435                 rc = -EIO;
8436         } else {
8437                 rd_config = &pmb->u.mqe.un.rd_config;
8438                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8439                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8440                         phba->sli4_hba.lnk_info.lnk_tp =
8441                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8442                         phba->sli4_hba.lnk_info.lnk_no =
8443                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8444                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8445                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8446                                         phba->sli4_hba.lnk_info.lnk_tp,
8447                                         phba->sli4_hba.lnk_info.lnk_no);
8448                 } else
8449                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8450                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8451                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8452                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8453                         phba->bbcredit_support = 1;
8454                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8455                 }
8456
8457                 phba->sli4_hba.conf_trunk =
8458                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8459                 phba->sli4_hba.extents_in_use =
8460                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8461                 phba->sli4_hba.max_cfg_param.max_xri =
8462                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8463                 /* Reduce resource usage in kdump environment */
8464                 if (is_kdump_kernel() &&
8465                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8466                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8467                 phba->sli4_hba.max_cfg_param.xri_base =
8468                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8469                 phba->sli4_hba.max_cfg_param.max_vpi =
8470                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8471                 /* Limit the max we support */
8472                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8473                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8474                 phba->sli4_hba.max_cfg_param.vpi_base =
8475                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8476                 phba->sli4_hba.max_cfg_param.max_rpi =
8477                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8478                 phba->sli4_hba.max_cfg_param.rpi_base =
8479                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8480                 phba->sli4_hba.max_cfg_param.max_vfi =
8481                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8482                 phba->sli4_hba.max_cfg_param.vfi_base =
8483                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8484                 phba->sli4_hba.max_cfg_param.max_fcfi =
8485                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8486                 phba->sli4_hba.max_cfg_param.max_eq =
8487                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8488                 phba->sli4_hba.max_cfg_param.max_rq =
8489                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8490                 phba->sli4_hba.max_cfg_param.max_wq =
8491                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8492                 phba->sli4_hba.max_cfg_param.max_cq =
8493                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8494                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8495                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8496                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8497                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8498                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8499                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8500                 phba->max_vports = phba->max_vpi;
8501                 lpfc_map_topology(phba, rd_config);
8502                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8503                                 "2003 cfg params Extents? %d "
8504                                 "XRI(B:%d M:%d), "
8505                                 "VPI(B:%d M:%d) "
8506                                 "VFI(B:%d M:%d) "
8507                                 "RPI(B:%d M:%d) "
8508                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8509                                 phba->sli4_hba.extents_in_use,
8510                                 phba->sli4_hba.max_cfg_param.xri_base,
8511                                 phba->sli4_hba.max_cfg_param.max_xri,
8512                                 phba->sli4_hba.max_cfg_param.vpi_base,
8513                                 phba->sli4_hba.max_cfg_param.max_vpi,
8514                                 phba->sli4_hba.max_cfg_param.vfi_base,
8515                                 phba->sli4_hba.max_cfg_param.max_vfi,
8516                                 phba->sli4_hba.max_cfg_param.rpi_base,
8517                                 phba->sli4_hba.max_cfg_param.max_rpi,
8518                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8519                                 phba->sli4_hba.max_cfg_param.max_eq,
8520                                 phba->sli4_hba.max_cfg_param.max_cq,
8521                                 phba->sli4_hba.max_cfg_param.max_wq,
8522                                 phba->sli4_hba.max_cfg_param.max_rq);
8523
8524                 /*
8525                  * Calculate queue resources based on how
8526                  * many WQ/CQ/EQs are available.
8527                  */
8528                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8529                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8530                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8531                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8532                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8533                 /*
8534                  * Whats left after this can go toward NVME / FCP.
8535                  * The minus 4 accounts for ELS, NVME LS, MBOX
8536                  * plus one extra. When configured for
8537                  * NVMET, FCP io channel WQs are not created.
8538                  */
8539                 qmin -= 4;
8540
8541                 /* Check to see if there is enough for NVME */
8542                 if ((phba->cfg_irq_chann > qmin) ||
8543                     (phba->cfg_hdw_queue > qmin)) {
8544                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8545                                         "2005 Reducing Queues: "
8546                                         "WQ %d CQ %d EQ %d: min %d: "
8547                                         "IRQ %d HDWQ %d\n",
8548                                         phba->sli4_hba.max_cfg_param.max_wq,
8549                                         phba->sli4_hba.max_cfg_param.max_cq,
8550                                         phba->sli4_hba.max_cfg_param.max_eq,
8551                                         qmin, phba->cfg_irq_chann,
8552                                         phba->cfg_hdw_queue);
8553
8554                         if (phba->cfg_irq_chann > qmin)
8555                                 phba->cfg_irq_chann = qmin;
8556                         if (phba->cfg_hdw_queue > qmin)
8557                                 phba->cfg_hdw_queue = qmin;
8558                 }
8559         }
8560
8561         if (rc)
8562                 goto read_cfg_out;
8563
8564         /* Update link speed if forced link speed is supported */
8565         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8566         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8567                 forced_link_speed =
8568                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8569                 if (forced_link_speed) {
8570                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8571
8572                         switch (forced_link_speed) {
8573                         case LINK_SPEED_1G:
8574                                 phba->cfg_link_speed =
8575                                         LPFC_USER_LINK_SPEED_1G;
8576                                 break;
8577                         case LINK_SPEED_2G:
8578                                 phba->cfg_link_speed =
8579                                         LPFC_USER_LINK_SPEED_2G;
8580                                 break;
8581                         case LINK_SPEED_4G:
8582                                 phba->cfg_link_speed =
8583                                         LPFC_USER_LINK_SPEED_4G;
8584                                 break;
8585                         case LINK_SPEED_8G:
8586                                 phba->cfg_link_speed =
8587                                         LPFC_USER_LINK_SPEED_8G;
8588                                 break;
8589                         case LINK_SPEED_10G:
8590                                 phba->cfg_link_speed =
8591                                         LPFC_USER_LINK_SPEED_10G;
8592                                 break;
8593                         case LINK_SPEED_16G:
8594                                 phba->cfg_link_speed =
8595                                         LPFC_USER_LINK_SPEED_16G;
8596                                 break;
8597                         case LINK_SPEED_32G:
8598                                 phba->cfg_link_speed =
8599                                         LPFC_USER_LINK_SPEED_32G;
8600                                 break;
8601                         case LINK_SPEED_64G:
8602                                 phba->cfg_link_speed =
8603                                         LPFC_USER_LINK_SPEED_64G;
8604                                 break;
8605                         case 0xffff:
8606                                 phba->cfg_link_speed =
8607                                         LPFC_USER_LINK_SPEED_AUTO;
8608                                 break;
8609                         default:
8610                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8611                                                 "0047 Unrecognized link "
8612                                                 "speed : %d\n",
8613                                                 forced_link_speed);
8614                                 phba->cfg_link_speed =
8615                                         LPFC_USER_LINK_SPEED_AUTO;
8616                         }
8617                 }
8618         }
8619
8620         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8621         length = phba->sli4_hba.max_cfg_param.max_xri -
8622                         lpfc_sli4_get_els_iocb_cnt(phba);
8623         if (phba->cfg_hba_queue_depth > length) {
8624                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8625                                 "3361 HBA queue depth changed from %d to %d\n",
8626                                 phba->cfg_hba_queue_depth, length);
8627                 phba->cfg_hba_queue_depth = length;
8628         }
8629
8630         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8631             LPFC_SLI_INTF_IF_TYPE_2)
8632                 goto read_cfg_out;
8633
8634         /* get the pf# and vf# for SLI4 if_type 2 port */
8635         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8636                   sizeof(struct lpfc_sli4_cfg_mhdr));
8637         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8638                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8639                          length, LPFC_SLI4_MBX_EMBED);
8640
8641         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8642         shdr = (union lpfc_sli4_cfg_shdr *)
8643                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8644         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8645         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8646         if (rc2 || shdr_status || shdr_add_status) {
8647                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8648                                 "3026 Mailbox failed , mbxCmd x%x "
8649                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8650                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8651                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8652                 goto read_cfg_out;
8653         }
8654
8655         /* search for fc_fcoe resrouce descriptor */
8656         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8657
8658         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8659         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8660         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8661         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8662                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8663         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8664                 goto read_cfg_out;
8665
8666         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8667                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8668                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8669                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8670                         phba->sli4_hba.iov.pf_number =
8671                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8672                         phba->sli4_hba.iov.vf_number =
8673                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8674                         break;
8675                 }
8676         }
8677
8678         if (i < LPFC_RSRC_DESC_MAX_NUM)
8679                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8680                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8681                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8682                                 phba->sli4_hba.iov.vf_number);
8683         else
8684                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8685                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8686                                 "Resource Descriptor:x%x\n",
8687                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8688
8689 read_cfg_out:
8690         mempool_free(pmb, phba->mbox_mem_pool);
8691         return rc;
8692 }
8693
8694 /**
8695  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8696  * @phba: pointer to lpfc hba data structure.
8697  *
8698  * This routine is invoked to setup the port-side endian order when
8699  * the port if_type is 0.  This routine has no function for other
8700  * if_types.
8701  *
8702  * Return codes
8703  *      0 - successful
8704  *      -ENOMEM - No available memory
8705  *      -EIO - The mailbox failed to complete successfully.
8706  **/
8707 static int
8708 lpfc_setup_endian_order(struct lpfc_hba *phba)
8709 {
8710         LPFC_MBOXQ_t *mboxq;
8711         uint32_t if_type, rc = 0;
8712         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8713                                       HOST_ENDIAN_HIGH_WORD1};
8714
8715         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8716         switch (if_type) {
8717         case LPFC_SLI_INTF_IF_TYPE_0:
8718                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8719                                                        GFP_KERNEL);
8720                 if (!mboxq) {
8721                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8722                                         "0492 Unable to allocate memory for "
8723                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8724                                         "command\n");
8725                         return -ENOMEM;
8726                 }
8727
8728                 /*
8729                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8730                  * two words to contain special data values and no other data.
8731                  */
8732                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8733                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8734                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8735                 if (rc != MBX_SUCCESS) {
8736                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8737                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8738                                         "failed with status x%x\n",
8739                                         rc);
8740                         rc = -EIO;
8741                 }
8742                 mempool_free(mboxq, phba->mbox_mem_pool);
8743                 break;
8744         case LPFC_SLI_INTF_IF_TYPE_6:
8745         case LPFC_SLI_INTF_IF_TYPE_2:
8746         case LPFC_SLI_INTF_IF_TYPE_1:
8747         default:
8748                 break;
8749         }
8750         return rc;
8751 }
8752
8753 /**
8754  * lpfc_sli4_queue_verify - Verify and update EQ counts
8755  * @phba: pointer to lpfc hba data structure.
8756  *
8757  * This routine is invoked to check the user settable queue counts for EQs.
8758  * After this routine is called the counts will be set to valid values that
8759  * adhere to the constraints of the system's interrupt vectors and the port's
8760  * queue resources.
8761  *
8762  * Return codes
8763  *      0 - successful
8764  *      -ENOMEM - No available memory
8765  **/
8766 static int
8767 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8768 {
8769         /*
8770          * Sanity check for configured queue parameters against the run-time
8771          * device parameters
8772          */
8773
8774         if (phba->nvmet_support) {
8775                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8776                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8777                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8778                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8779         }
8780
8781         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8782                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8783                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8784                         phba->cfg_nvmet_mrq);
8785
8786         /* Get EQ depth from module parameter, fake the default for now */
8787         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8788         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8789
8790         /* Get CQ depth from module parameter, fake the default for now */
8791         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8792         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8793         return 0;
8794 }
8795
8796 static int
8797 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8798 {
8799         struct lpfc_queue *qdesc;
8800         u32 wqesize;
8801         int cpu;
8802
8803         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8804         /* Create Fast Path IO CQs */
8805         if (phba->enab_exp_wqcq_pages)
8806                 /* Increase the CQ size when WQEs contain an embedded cdb */
8807                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8808                                               phba->sli4_hba.cq_esize,
8809                                               LPFC_CQE_EXP_COUNT, cpu);
8810
8811         else
8812                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8813                                               phba->sli4_hba.cq_esize,
8814                                               phba->sli4_hba.cq_ecount, cpu);
8815         if (!qdesc) {
8816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8817                         "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8818                 return 1;
8819         }
8820         qdesc->qe_valid = 1;
8821         qdesc->hdwq = idx;
8822         qdesc->chann = cpu;
8823         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8824
8825         /* Create Fast Path IO WQs */
8826         if (phba->enab_exp_wqcq_pages) {
8827                 /* Increase the WQ size when WQEs contain an embedded cdb */
8828                 wqesize = (phba->fcp_embed_io) ?
8829                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8830                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8831                                               wqesize,
8832                                               LPFC_WQE_EXP_COUNT, cpu);
8833         } else
8834                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8835                                               phba->sli4_hba.wq_esize,
8836                                               phba->sli4_hba.wq_ecount, cpu);
8837
8838         if (!qdesc) {
8839                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8840                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8841                                 idx);
8842                 return 1;
8843         }
8844         qdesc->hdwq = idx;
8845         qdesc->chann = cpu;
8846         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8847         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8848         return 0;
8849 }
8850
8851 /**
8852  * lpfc_sli4_queue_create - Create all the SLI4 queues
8853  * @phba: pointer to lpfc hba data structure.
8854  *
8855  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8856  * operation. For each SLI4 queue type, the parameters such as queue entry
8857  * count (queue depth) shall be taken from the module parameter. For now,
8858  * we just use some constant number as place holder.
8859  *
8860  * Return codes
8861  *      0 - successful
8862  *      -ENOMEM - No availble memory
8863  *      -EIO - The mailbox failed to complete successfully.
8864  **/
8865 int
8866 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8867 {
8868         struct lpfc_queue *qdesc;
8869         int idx, cpu, eqcpu;
8870         struct lpfc_sli4_hdw_queue *qp;
8871         struct lpfc_vector_map_info *cpup;
8872         struct lpfc_vector_map_info *eqcpup;
8873         struct lpfc_eq_intr_info *eqi;
8874
8875         /*
8876          * Create HBA Record arrays.
8877          * Both NVME and FCP will share that same vectors / EQs
8878          */
8879         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8880         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8881         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8882         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8883         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8884         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8885         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8886         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8887         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8888         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8889
8890         if (!phba->sli4_hba.hdwq) {
8891                 phba->sli4_hba.hdwq = kcalloc(
8892                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8893                         GFP_KERNEL);
8894                 if (!phba->sli4_hba.hdwq) {
8895                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8896                                         "6427 Failed allocate memory for "
8897                                         "fast-path Hardware Queue array\n");
8898                         goto out_error;
8899                 }
8900                 /* Prepare hardware queues to take IO buffers */
8901                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8902                         qp = &phba->sli4_hba.hdwq[idx];
8903                         spin_lock_init(&qp->io_buf_list_get_lock);
8904                         spin_lock_init(&qp->io_buf_list_put_lock);
8905                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8906                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8907                         qp->get_io_bufs = 0;
8908                         qp->put_io_bufs = 0;
8909                         qp->total_io_bufs = 0;
8910                         spin_lock_init(&qp->abts_io_buf_list_lock);
8911                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8912                         qp->abts_scsi_io_bufs = 0;
8913                         qp->abts_nvme_io_bufs = 0;
8914                         INIT_LIST_HEAD(&qp->sgl_list);
8915                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8916                         spin_lock_init(&qp->hdwq_lock);
8917                 }
8918         }
8919
8920         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8921                 if (phba->nvmet_support) {
8922                         phba->sli4_hba.nvmet_cqset = kcalloc(
8923                                         phba->cfg_nvmet_mrq,
8924                                         sizeof(struct lpfc_queue *),
8925                                         GFP_KERNEL);
8926                         if (!phba->sli4_hba.nvmet_cqset) {
8927                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8928                                         "3121 Fail allocate memory for "
8929                                         "fast-path CQ set array\n");
8930                                 goto out_error;
8931                         }
8932                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8933                                         phba->cfg_nvmet_mrq,
8934                                         sizeof(struct lpfc_queue *),
8935                                         GFP_KERNEL);
8936                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8937                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8938                                         "3122 Fail allocate memory for "
8939                                         "fast-path RQ set hdr array\n");
8940                                 goto out_error;
8941                         }
8942                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8943                                         phba->cfg_nvmet_mrq,
8944                                         sizeof(struct lpfc_queue *),
8945                                         GFP_KERNEL);
8946                         if (!phba->sli4_hba.nvmet_mrq_data) {
8947                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8948                                         "3124 Fail allocate memory for "
8949                                         "fast-path RQ set data array\n");
8950                                 goto out_error;
8951                         }
8952                 }
8953         }
8954
8955         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8956
8957         /* Create HBA Event Queues (EQs) */
8958         for_each_present_cpu(cpu) {
8959                 /* We only want to create 1 EQ per vector, even though
8960                  * multiple CPUs might be using that vector. so only
8961                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8962                  */
8963                 cpup = &phba->sli4_hba.cpu_map[cpu];
8964                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8965                         continue;
8966
8967                 /* Get a ptr to the Hardware Queue associated with this CPU */
8968                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8969
8970                 /* Allocate an EQ */
8971                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8972                                               phba->sli4_hba.eq_esize,
8973                                               phba->sli4_hba.eq_ecount, cpu);
8974                 if (!qdesc) {
8975                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8976                                         "0497 Failed allocate EQ (%d)\n",
8977                                         cpup->hdwq);
8978                         goto out_error;
8979                 }
8980                 qdesc->qe_valid = 1;
8981                 qdesc->hdwq = cpup->hdwq;
8982                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8983                 qdesc->last_cpu = qdesc->chann;
8984
8985                 /* Save the allocated EQ in the Hardware Queue */
8986                 qp->hba_eq = qdesc;
8987
8988                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8989                 list_add(&qdesc->cpu_list, &eqi->list);
8990         }
8991
8992         /* Now we need to populate the other Hardware Queues, that share
8993          * an IRQ vector, with the associated EQ ptr.
8994          */
8995         for_each_present_cpu(cpu) {
8996                 cpup = &phba->sli4_hba.cpu_map[cpu];
8997
8998                 /* Check for EQ already allocated in previous loop */
8999                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
9000                         continue;
9001
9002                 /* Check for multiple CPUs per hdwq */
9003                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9004                 if (qp->hba_eq)
9005                         continue;
9006
9007                 /* We need to share an EQ for this hdwq */
9008                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
9009                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
9010                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
9011         }
9012
9013         /* Allocate IO Path SLI4 CQ/WQs */
9014         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9015                 if (lpfc_alloc_io_wq_cq(phba, idx))
9016                         goto out_error;
9017         }
9018
9019         if (phba->nvmet_support) {
9020                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9021                         cpu = lpfc_find_cpu_handle(phba, idx,
9022                                                    LPFC_FIND_BY_HDWQ);
9023                         qdesc = lpfc_sli4_queue_alloc(phba,
9024                                                       LPFC_DEFAULT_PAGE_SIZE,
9025                                                       phba->sli4_hba.cq_esize,
9026                                                       phba->sli4_hba.cq_ecount,
9027                                                       cpu);
9028                         if (!qdesc) {
9029                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9030                                                 "3142 Failed allocate NVME "
9031                                                 "CQ Set (%d)\n", idx);
9032                                 goto out_error;
9033                         }
9034                         qdesc->qe_valid = 1;
9035                         qdesc->hdwq = idx;
9036                         qdesc->chann = cpu;
9037                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9038                 }
9039         }
9040
9041         /*
9042          * Create Slow Path Completion Queues (CQs)
9043          */
9044
9045         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9046         /* Create slow-path Mailbox Command Complete Queue */
9047         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9048                                       phba->sli4_hba.cq_esize,
9049                                       phba->sli4_hba.cq_ecount, cpu);
9050         if (!qdesc) {
9051                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9052                                 "0500 Failed allocate slow-path mailbox CQ\n");
9053                 goto out_error;
9054         }
9055         qdesc->qe_valid = 1;
9056         phba->sli4_hba.mbx_cq = qdesc;
9057
9058         /* Create slow-path ELS Complete Queue */
9059         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9060                                       phba->sli4_hba.cq_esize,
9061                                       phba->sli4_hba.cq_ecount, cpu);
9062         if (!qdesc) {
9063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9064                                 "0501 Failed allocate slow-path ELS CQ\n");
9065                 goto out_error;
9066         }
9067         qdesc->qe_valid = 1;
9068         qdesc->chann = cpu;
9069         phba->sli4_hba.els_cq = qdesc;
9070
9071
9072         /*
9073          * Create Slow Path Work Queues (WQs)
9074          */
9075
9076         /* Create Mailbox Command Queue */
9077
9078         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9079                                       phba->sli4_hba.mq_esize,
9080                                       phba->sli4_hba.mq_ecount, cpu);
9081         if (!qdesc) {
9082                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9083                                 "0505 Failed allocate slow-path MQ\n");
9084                 goto out_error;
9085         }
9086         qdesc->chann = cpu;
9087         phba->sli4_hba.mbx_wq = qdesc;
9088
9089         /*
9090          * Create ELS Work Queues
9091          */
9092
9093         /* Create slow-path ELS Work Queue */
9094         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9095                                       phba->sli4_hba.wq_esize,
9096                                       phba->sli4_hba.wq_ecount, cpu);
9097         if (!qdesc) {
9098                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9099                                 "0504 Failed allocate slow-path ELS WQ\n");
9100                 goto out_error;
9101         }
9102         qdesc->chann = cpu;
9103         phba->sli4_hba.els_wq = qdesc;
9104         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9105
9106         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9107                 /* Create NVME LS Complete Queue */
9108                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9109                                               phba->sli4_hba.cq_esize,
9110                                               phba->sli4_hba.cq_ecount, cpu);
9111                 if (!qdesc) {
9112                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9113                                         "6079 Failed allocate NVME LS CQ\n");
9114                         goto out_error;
9115                 }
9116                 qdesc->chann = cpu;
9117                 qdesc->qe_valid = 1;
9118                 phba->sli4_hba.nvmels_cq = qdesc;
9119
9120                 /* Create NVME LS Work Queue */
9121                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9122                                               phba->sli4_hba.wq_esize,
9123                                               phba->sli4_hba.wq_ecount, cpu);
9124                 if (!qdesc) {
9125                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9126                                         "6080 Failed allocate NVME LS WQ\n");
9127                         goto out_error;
9128                 }
9129                 qdesc->chann = cpu;
9130                 phba->sli4_hba.nvmels_wq = qdesc;
9131                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9132         }
9133
9134         /*
9135          * Create Receive Queue (RQ)
9136          */
9137
9138         /* Create Receive Queue for header */
9139         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9140                                       phba->sli4_hba.rq_esize,
9141                                       phba->sli4_hba.rq_ecount, cpu);
9142         if (!qdesc) {
9143                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9144                                 "0506 Failed allocate receive HRQ\n");
9145                 goto out_error;
9146         }
9147         phba->sli4_hba.hdr_rq = qdesc;
9148
9149         /* Create Receive Queue for data */
9150         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9151                                       phba->sli4_hba.rq_esize,
9152                                       phba->sli4_hba.rq_ecount, cpu);
9153         if (!qdesc) {
9154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9155                                 "0507 Failed allocate receive DRQ\n");
9156                 goto out_error;
9157         }
9158         phba->sli4_hba.dat_rq = qdesc;
9159
9160         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9161             phba->nvmet_support) {
9162                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9163                         cpu = lpfc_find_cpu_handle(phba, idx,
9164                                                    LPFC_FIND_BY_HDWQ);
9165                         /* Create NVMET Receive Queue for header */
9166                         qdesc = lpfc_sli4_queue_alloc(phba,
9167                                                       LPFC_DEFAULT_PAGE_SIZE,
9168                                                       phba->sli4_hba.rq_esize,
9169                                                       LPFC_NVMET_RQE_DEF_COUNT,
9170                                                       cpu);
9171                         if (!qdesc) {
9172                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9173                                                 "3146 Failed allocate "
9174                                                 "receive HRQ\n");
9175                                 goto out_error;
9176                         }
9177                         qdesc->hdwq = idx;
9178                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9179
9180                         /* Only needed for header of RQ pair */
9181                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9182                                                    GFP_KERNEL,
9183                                                    cpu_to_node(cpu));
9184                         if (qdesc->rqbp == NULL) {
9185                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9186                                                 "6131 Failed allocate "
9187                                                 "Header RQBP\n");
9188                                 goto out_error;
9189                         }
9190
9191                         /* Put list in known state in case driver load fails. */
9192                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9193
9194                         /* Create NVMET Receive Queue for data */
9195                         qdesc = lpfc_sli4_queue_alloc(phba,
9196                                                       LPFC_DEFAULT_PAGE_SIZE,
9197                                                       phba->sli4_hba.rq_esize,
9198                                                       LPFC_NVMET_RQE_DEF_COUNT,
9199                                                       cpu);
9200                         if (!qdesc) {
9201                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9202                                                 "3156 Failed allocate "
9203                                                 "receive DRQ\n");
9204                                 goto out_error;
9205                         }
9206                         qdesc->hdwq = idx;
9207                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9208                 }
9209         }
9210
9211         /* Clear NVME stats */
9212         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9213                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9214                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9215                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9216                 }
9217         }
9218
9219         /* Clear SCSI stats */
9220         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9221                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9222                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9223                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9224                 }
9225         }
9226
9227         return 0;
9228
9229 out_error:
9230         lpfc_sli4_queue_destroy(phba);
9231         return -ENOMEM;
9232 }
9233
9234 static inline void
9235 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9236 {
9237         if (*qp != NULL) {
9238                 lpfc_sli4_queue_free(*qp);
9239                 *qp = NULL;
9240         }
9241 }
9242
9243 static inline void
9244 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9245 {
9246         int idx;
9247
9248         if (*qs == NULL)
9249                 return;
9250
9251         for (idx = 0; idx < max; idx++)
9252                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9253
9254         kfree(*qs);
9255         *qs = NULL;
9256 }
9257
9258 static inline void
9259 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9260 {
9261         struct lpfc_sli4_hdw_queue *hdwq;
9262         struct lpfc_queue *eq;
9263         uint32_t idx;
9264
9265         hdwq = phba->sli4_hba.hdwq;
9266
9267         /* Loop thru all Hardware Queues */
9268         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9269                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9270                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9271                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9272                 hdwq[idx].hba_eq = NULL;
9273                 hdwq[idx].io_cq = NULL;
9274                 hdwq[idx].io_wq = NULL;
9275                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9276                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9277                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9278         }
9279         /* Loop thru all IRQ vectors */
9280         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9281                 /* Free the EQ corresponding to the IRQ vector */
9282                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9283                 lpfc_sli4_queue_free(eq);
9284                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9285         }
9286 }
9287
9288 /**
9289  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9290  * @phba: pointer to lpfc hba data structure.
9291  *
9292  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9293  * operation.
9294  *
9295  * Return codes
9296  *      0 - successful
9297  *      -ENOMEM - No available memory
9298  *      -EIO - The mailbox failed to complete successfully.
9299  **/
9300 void
9301 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9302 {
9303         /*
9304          * Set FREE_INIT before beginning to free the queues.
9305          * Wait until the users of queues to acknowledge to
9306          * release queues by clearing FREE_WAIT.
9307          */
9308         spin_lock_irq(&phba->hbalock);
9309         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9310         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9311                 spin_unlock_irq(&phba->hbalock);
9312                 msleep(20);
9313                 spin_lock_irq(&phba->hbalock);
9314         }
9315         spin_unlock_irq(&phba->hbalock);
9316
9317         lpfc_sli4_cleanup_poll_list(phba);
9318
9319         /* Release HBA eqs */
9320         if (phba->sli4_hba.hdwq)
9321                 lpfc_sli4_release_hdwq(phba);
9322
9323         if (phba->nvmet_support) {
9324                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9325                                          phba->cfg_nvmet_mrq);
9326
9327                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9328                                          phba->cfg_nvmet_mrq);
9329                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9330                                          phba->cfg_nvmet_mrq);
9331         }
9332
9333         /* Release mailbox command work queue */
9334         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9335
9336         /* Release ELS work queue */
9337         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9338
9339         /* Release ELS work queue */
9340         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9341
9342         /* Release unsolicited receive queue */
9343         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9344         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9345
9346         /* Release ELS complete queue */
9347         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9348
9349         /* Release NVME LS complete queue */
9350         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9351
9352         /* Release mailbox command complete queue */
9353         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9354
9355         /* Everything on this list has been freed */
9356         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9357
9358         /* Done with freeing the queues */
9359         spin_lock_irq(&phba->hbalock);
9360         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9361         spin_unlock_irq(&phba->hbalock);
9362 }
9363
9364 int
9365 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9366 {
9367         struct lpfc_rqb *rqbp;
9368         struct lpfc_dmabuf *h_buf;
9369         struct rqb_dmabuf *rqb_buffer;
9370
9371         rqbp = rq->rqbp;
9372         while (!list_empty(&rqbp->rqb_buffer_list)) {
9373                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9374                                  struct lpfc_dmabuf, list);
9375
9376                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9377                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9378                 rqbp->buffer_count--;
9379         }
9380         return 1;
9381 }
9382
9383 static int
9384 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9385         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9386         int qidx, uint32_t qtype)
9387 {
9388         struct lpfc_sli_ring *pring;
9389         int rc;
9390
9391         if (!eq || !cq || !wq) {
9392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9393                         "6085 Fast-path %s (%d) not allocated\n",
9394                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9395                 return -ENOMEM;
9396         }
9397
9398         /* create the Cq first */
9399         rc = lpfc_cq_create(phba, cq, eq,
9400                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9401         if (rc) {
9402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9403                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9404                         qidx, (uint32_t)rc);
9405                 return rc;
9406         }
9407
9408         if (qtype != LPFC_MBOX) {
9409                 /* Setup cq_map for fast lookup */
9410                 if (cq_map)
9411                         *cq_map = cq->queue_id;
9412
9413                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9414                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9415                         qidx, cq->queue_id, qidx, eq->queue_id);
9416
9417                 /* create the wq */
9418                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9419                 if (rc) {
9420                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9421                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9422                                 qidx, (uint32_t)rc);
9423                         /* no need to tear down cq - caller will do so */
9424                         return rc;
9425                 }
9426
9427                 /* Bind this CQ/WQ to the NVME ring */
9428                 pring = wq->pring;
9429                 pring->sli.sli4.wqp = (void *)wq;
9430                 cq->pring = pring;
9431
9432                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9433                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9434                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9435         } else {
9436                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9437                 if (rc) {
9438                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9439                                 "0539 Failed setup of slow-path MQ: "
9440                                 "rc = 0x%x\n", rc);
9441                         /* no need to tear down cq - caller will do so */
9442                         return rc;
9443                 }
9444
9445                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9446                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9447                         phba->sli4_hba.mbx_wq->queue_id,
9448                         phba->sli4_hba.mbx_cq->queue_id);
9449         }
9450
9451         return 0;
9452 }
9453
9454 /**
9455  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9456  * @phba: pointer to lpfc hba data structure.
9457  *
9458  * This routine will populate the cq_lookup table by all
9459  * available CQ queue_id's.
9460  **/
9461 static void
9462 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9463 {
9464         struct lpfc_queue *eq, *childq;
9465         int qidx;
9466
9467         memset(phba->sli4_hba.cq_lookup, 0,
9468                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9469         /* Loop thru all IRQ vectors */
9470         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9471                 /* Get the EQ corresponding to the IRQ vector */
9472                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9473                 if (!eq)
9474                         continue;
9475                 /* Loop through all CQs associated with that EQ */
9476                 list_for_each_entry(childq, &eq->child_list, list) {
9477                         if (childq->queue_id > phba->sli4_hba.cq_max)
9478                                 continue;
9479                         if (childq->subtype == LPFC_IO)
9480                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9481                                         childq;
9482                 }
9483         }
9484 }
9485
9486 /**
9487  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9488  * @phba: pointer to lpfc hba data structure.
9489  *
9490  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9491  * operation.
9492  *
9493  * Return codes
9494  *      0 - successful
9495  *      -ENOMEM - No available memory
9496  *      -EIO - The mailbox failed to complete successfully.
9497  **/
9498 int
9499 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9500 {
9501         uint32_t shdr_status, shdr_add_status;
9502         union lpfc_sli4_cfg_shdr *shdr;
9503         struct lpfc_vector_map_info *cpup;
9504         struct lpfc_sli4_hdw_queue *qp;
9505         LPFC_MBOXQ_t *mboxq;
9506         int qidx, cpu;
9507         uint32_t length, usdelay;
9508         int rc = -ENOMEM;
9509
9510         /* Check for dual-ULP support */
9511         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9512         if (!mboxq) {
9513                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9514                                 "3249 Unable to allocate memory for "
9515                                 "QUERY_FW_CFG mailbox command\n");
9516                 return -ENOMEM;
9517         }
9518         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9519                   sizeof(struct lpfc_sli4_cfg_mhdr));
9520         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9521                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9522                          length, LPFC_SLI4_MBX_EMBED);
9523
9524         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9525
9526         shdr = (union lpfc_sli4_cfg_shdr *)
9527                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9528         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9529         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9530         if (shdr_status || shdr_add_status || rc) {
9531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9532                                 "3250 QUERY_FW_CFG mailbox failed with status "
9533                                 "x%x add_status x%x, mbx status x%x\n",
9534                                 shdr_status, shdr_add_status, rc);
9535                 if (rc != MBX_TIMEOUT)
9536                         mempool_free(mboxq, phba->mbox_mem_pool);
9537                 rc = -ENXIO;
9538                 goto out_error;
9539         }
9540
9541         phba->sli4_hba.fw_func_mode =
9542                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9543         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9544         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9545         phba->sli4_hba.physical_port =
9546                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9547         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9548                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9549                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9550                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9551
9552         if (rc != MBX_TIMEOUT)
9553                 mempool_free(mboxq, phba->mbox_mem_pool);
9554
9555         /*
9556          * Set up HBA Event Queues (EQs)
9557          */
9558         qp = phba->sli4_hba.hdwq;
9559
9560         /* Set up HBA event queue */
9561         if (!qp) {
9562                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9563                                 "3147 Fast-path EQs not allocated\n");
9564                 rc = -ENOMEM;
9565                 goto out_error;
9566         }
9567
9568         /* Loop thru all IRQ vectors */
9569         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9570                 /* Create HBA Event Queues (EQs) in order */
9571                 for_each_present_cpu(cpu) {
9572                         cpup = &phba->sli4_hba.cpu_map[cpu];
9573
9574                         /* Look for the CPU thats using that vector with
9575                          * LPFC_CPU_FIRST_IRQ set.
9576                          */
9577                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9578                                 continue;
9579                         if (qidx != cpup->eq)
9580                                 continue;
9581
9582                         /* Create an EQ for that vector */
9583                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9584                                             phba->cfg_fcp_imax);
9585                         if (rc) {
9586                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9587                                                 "0523 Failed setup of fast-path"
9588                                                 " EQ (%d), rc = 0x%x\n",
9589                                                 cpup->eq, (uint32_t)rc);
9590                                 goto out_destroy;
9591                         }
9592
9593                         /* Save the EQ for that vector in the hba_eq_hdl */
9594                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9595                                 qp[cpup->hdwq].hba_eq;
9596
9597                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9598                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9599                                         cpup->eq,
9600                                         qp[cpup->hdwq].hba_eq->queue_id);
9601                 }
9602         }
9603
9604         /* Loop thru all Hardware Queues */
9605         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9606                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9607                 cpup = &phba->sli4_hba.cpu_map[cpu];
9608
9609                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9610                 rc = lpfc_create_wq_cq(phba,
9611                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9612                                        qp[qidx].io_cq,
9613                                        qp[qidx].io_wq,
9614                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9615                                        qidx,
9616                                        LPFC_IO);
9617                 if (rc) {
9618                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9619                                         "0535 Failed to setup fastpath "
9620                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9621                                         qidx, (uint32_t)rc);
9622                         goto out_destroy;
9623                 }
9624         }
9625
9626         /*
9627          * Set up Slow Path Complete Queues (CQs)
9628          */
9629
9630         /* Set up slow-path MBOX CQ/MQ */
9631
9632         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9633                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9634                                 "0528 %s not allocated\n",
9635                                 phba->sli4_hba.mbx_cq ?
9636                                 "Mailbox WQ" : "Mailbox CQ");
9637                 rc = -ENOMEM;
9638                 goto out_destroy;
9639         }
9640
9641         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9642                                phba->sli4_hba.mbx_cq,
9643                                phba->sli4_hba.mbx_wq,
9644                                NULL, 0, LPFC_MBOX);
9645         if (rc) {
9646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9647                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9648                         (uint32_t)rc);
9649                 goto out_destroy;
9650         }
9651         if (phba->nvmet_support) {
9652                 if (!phba->sli4_hba.nvmet_cqset) {
9653                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9654                                         "3165 Fast-path NVME CQ Set "
9655                                         "array not allocated\n");
9656                         rc = -ENOMEM;
9657                         goto out_destroy;
9658                 }
9659                 if (phba->cfg_nvmet_mrq > 1) {
9660                         rc = lpfc_cq_create_set(phba,
9661                                         phba->sli4_hba.nvmet_cqset,
9662                                         qp,
9663                                         LPFC_WCQ, LPFC_NVMET);
9664                         if (rc) {
9665                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9666                                                 "3164 Failed setup of NVME CQ "
9667                                                 "Set, rc = 0x%x\n",
9668                                                 (uint32_t)rc);
9669                                 goto out_destroy;
9670                         }
9671                 } else {
9672                         /* Set up NVMET Receive Complete Queue */
9673                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9674                                             qp[0].hba_eq,
9675                                             LPFC_WCQ, LPFC_NVMET);
9676                         if (rc) {
9677                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9678                                                 "6089 Failed setup NVMET CQ: "
9679                                                 "rc = 0x%x\n", (uint32_t)rc);
9680                                 goto out_destroy;
9681                         }
9682                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9683
9684                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9685                                         "6090 NVMET CQ setup: cq-id=%d, "
9686                                         "parent eq-id=%d\n",
9687                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9688                                         qp[0].hba_eq->queue_id);
9689                 }
9690         }
9691
9692         /* Set up slow-path ELS WQ/CQ */
9693         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9695                                 "0530 ELS %s not allocated\n",
9696                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9697                 rc = -ENOMEM;
9698                 goto out_destroy;
9699         }
9700         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9701                                phba->sli4_hba.els_cq,
9702                                phba->sli4_hba.els_wq,
9703                                NULL, 0, LPFC_ELS);
9704         if (rc) {
9705                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9706                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9707                                 (uint32_t)rc);
9708                 goto out_destroy;
9709         }
9710         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9711                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9712                         phba->sli4_hba.els_wq->queue_id,
9713                         phba->sli4_hba.els_cq->queue_id);
9714
9715         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9716                 /* Set up NVME LS Complete Queue */
9717                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9718                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9719                                         "6091 LS %s not allocated\n",
9720                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9721                         rc = -ENOMEM;
9722                         goto out_destroy;
9723                 }
9724                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9725                                        phba->sli4_hba.nvmels_cq,
9726                                        phba->sli4_hba.nvmels_wq,
9727                                        NULL, 0, LPFC_NVME_LS);
9728                 if (rc) {
9729                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9730                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9731                                         "rc = 0x%x\n", (uint32_t)rc);
9732                         goto out_destroy;
9733                 }
9734
9735                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9736                                 "6096 ELS WQ setup: wq-id=%d, "
9737                                 "parent cq-id=%d\n",
9738                                 phba->sli4_hba.nvmels_wq->queue_id,
9739                                 phba->sli4_hba.nvmels_cq->queue_id);
9740         }
9741
9742         /*
9743          * Create NVMET Receive Queue (RQ)
9744          */
9745         if (phba->nvmet_support) {
9746                 if ((!phba->sli4_hba.nvmet_cqset) ||
9747                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9748                     (!phba->sli4_hba.nvmet_mrq_data)) {
9749                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9750                                         "6130 MRQ CQ Queues not "
9751                                         "allocated\n");
9752                         rc = -ENOMEM;
9753                         goto out_destroy;
9754                 }
9755                 if (phba->cfg_nvmet_mrq > 1) {
9756                         rc = lpfc_mrq_create(phba,
9757                                              phba->sli4_hba.nvmet_mrq_hdr,
9758                                              phba->sli4_hba.nvmet_mrq_data,
9759                                              phba->sli4_hba.nvmet_cqset,
9760                                              LPFC_NVMET);
9761                         if (rc) {
9762                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9763                                                 "6098 Failed setup of NVMET "
9764                                                 "MRQ: rc = 0x%x\n",
9765                                                 (uint32_t)rc);
9766                                 goto out_destroy;
9767                         }
9768
9769                 } else {
9770                         rc = lpfc_rq_create(phba,
9771                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9772                                             phba->sli4_hba.nvmet_mrq_data[0],
9773                                             phba->sli4_hba.nvmet_cqset[0],
9774                                             LPFC_NVMET);
9775                         if (rc) {
9776                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9777                                                 "6057 Failed setup of NVMET "
9778                                                 "Receive Queue: rc = 0x%x\n",
9779                                                 (uint32_t)rc);
9780                                 goto out_destroy;
9781                         }
9782
9783                         lpfc_printf_log(
9784                                 phba, KERN_INFO, LOG_INIT,
9785                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9786                                 "dat-rq-id=%d parent cq-id=%d\n",
9787                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9788                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9789                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9790
9791                 }
9792         }
9793
9794         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9795                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9796                                 "0540 Receive Queue not allocated\n");
9797                 rc = -ENOMEM;
9798                 goto out_destroy;
9799         }
9800
9801         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9802                             phba->sli4_hba.els_cq, LPFC_USOL);
9803         if (rc) {
9804                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9805                                 "0541 Failed setup of Receive Queue: "
9806                                 "rc = 0x%x\n", (uint32_t)rc);
9807                 goto out_destroy;
9808         }
9809
9810         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9811                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9812                         "parent cq-id=%d\n",
9813                         phba->sli4_hba.hdr_rq->queue_id,
9814                         phba->sli4_hba.dat_rq->queue_id,
9815                         phba->sli4_hba.els_cq->queue_id);
9816
9817         if (phba->cfg_fcp_imax)
9818                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9819         else
9820                 usdelay = 0;
9821
9822         for (qidx = 0; qidx < phba->cfg_irq_chann;
9823              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9824                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9825                                          usdelay);
9826
9827         if (phba->sli4_hba.cq_max) {
9828                 kfree(phba->sli4_hba.cq_lookup);
9829                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9830                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9831                 if (!phba->sli4_hba.cq_lookup) {
9832                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9833                                         "0549 Failed setup of CQ Lookup table: "
9834                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9835                         rc = -ENOMEM;
9836                         goto out_destroy;
9837                 }
9838                 lpfc_setup_cq_lookup(phba);
9839         }
9840         return 0;
9841
9842 out_destroy:
9843         lpfc_sli4_queue_unset(phba);
9844 out_error:
9845         return rc;
9846 }
9847
9848 /**
9849  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9850  * @phba: pointer to lpfc hba data structure.
9851  *
9852  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9853  * operation.
9854  *
9855  * Return codes
9856  *      0 - successful
9857  *      -ENOMEM - No available memory
9858  *      -EIO - The mailbox failed to complete successfully.
9859  **/
9860 void
9861 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9862 {
9863         struct lpfc_sli4_hdw_queue *qp;
9864         struct lpfc_queue *eq;
9865         int qidx;
9866
9867         /* Unset mailbox command work queue */
9868         if (phba->sli4_hba.mbx_wq)
9869                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9870
9871         /* Unset NVME LS work queue */
9872         if (phba->sli4_hba.nvmels_wq)
9873                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9874
9875         /* Unset ELS work queue */
9876         if (phba->sli4_hba.els_wq)
9877                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9878
9879         /* Unset unsolicited receive queue */
9880         if (phba->sli4_hba.hdr_rq)
9881                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9882                                 phba->sli4_hba.dat_rq);
9883
9884         /* Unset mailbox command complete queue */
9885         if (phba->sli4_hba.mbx_cq)
9886                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9887
9888         /* Unset ELS complete queue */
9889         if (phba->sli4_hba.els_cq)
9890                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9891
9892         /* Unset NVME LS complete queue */
9893         if (phba->sli4_hba.nvmels_cq)
9894                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9895
9896         if (phba->nvmet_support) {
9897                 /* Unset NVMET MRQ queue */
9898                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9899                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9900                                 lpfc_rq_destroy(
9901                                         phba,
9902                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9903                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9904                 }
9905
9906                 /* Unset NVMET CQ Set complete queue */
9907                 if (phba->sli4_hba.nvmet_cqset) {
9908                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9909                                 lpfc_cq_destroy(
9910                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9911                 }
9912         }
9913
9914         /* Unset fast-path SLI4 queues */
9915         if (phba->sli4_hba.hdwq) {
9916                 /* Loop thru all Hardware Queues */
9917                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9918                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
9919                         qp = &phba->sli4_hba.hdwq[qidx];
9920                         lpfc_wq_destroy(phba, qp->io_wq);
9921                         lpfc_cq_destroy(phba, qp->io_cq);
9922                 }
9923                 /* Loop thru all IRQ vectors */
9924                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9925                         /* Destroy the EQ corresponding to the IRQ vector */
9926                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9927                         lpfc_eq_destroy(phba, eq);
9928                 }
9929         }
9930
9931         kfree(phba->sli4_hba.cq_lookup);
9932         phba->sli4_hba.cq_lookup = NULL;
9933         phba->sli4_hba.cq_max = 0;
9934 }
9935
9936 /**
9937  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9938  * @phba: pointer to lpfc hba data structure.
9939  *
9940  * This routine is invoked to allocate and set up a pool of completion queue
9941  * events. The body of the completion queue event is a completion queue entry
9942  * CQE. For now, this pool is used for the interrupt service routine to queue
9943  * the following HBA completion queue events for the worker thread to process:
9944  *   - Mailbox asynchronous events
9945  *   - Receive queue completion unsolicited events
9946  * Later, this can be used for all the slow-path events.
9947  *
9948  * Return codes
9949  *      0 - successful
9950  *      -ENOMEM - No available memory
9951  **/
9952 static int
9953 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9954 {
9955         struct lpfc_cq_event *cq_event;
9956         int i;
9957
9958         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9959                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9960                 if (!cq_event)
9961                         goto out_pool_create_fail;
9962                 list_add_tail(&cq_event->list,
9963                               &phba->sli4_hba.sp_cqe_event_pool);
9964         }
9965         return 0;
9966
9967 out_pool_create_fail:
9968         lpfc_sli4_cq_event_pool_destroy(phba);
9969         return -ENOMEM;
9970 }
9971
9972 /**
9973  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9974  * @phba: pointer to lpfc hba data structure.
9975  *
9976  * This routine is invoked to free the pool of completion queue events at
9977  * driver unload time. Note that, it is the responsibility of the driver
9978  * cleanup routine to free all the outstanding completion-queue events
9979  * allocated from this pool back into the pool before invoking this routine
9980  * to destroy the pool.
9981  **/
9982 static void
9983 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9984 {
9985         struct lpfc_cq_event *cq_event, *next_cq_event;
9986
9987         list_for_each_entry_safe(cq_event, next_cq_event,
9988                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9989                 list_del(&cq_event->list);
9990                 kfree(cq_event);
9991         }
9992 }
9993
9994 /**
9995  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9996  * @phba: pointer to lpfc hba data structure.
9997  *
9998  * This routine is the lock free version of the API invoked to allocate a
9999  * completion-queue event from the free pool.
10000  *
10001  * Return: Pointer to the newly allocated completion-queue event if successful
10002  *         NULL otherwise.
10003  **/
10004 struct lpfc_cq_event *
10005 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10006 {
10007         struct lpfc_cq_event *cq_event = NULL;
10008
10009         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
10010                          struct lpfc_cq_event, list);
10011         return cq_event;
10012 }
10013
10014 /**
10015  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10016  * @phba: pointer to lpfc hba data structure.
10017  *
10018  * This routine is the lock version of the API invoked to allocate a
10019  * completion-queue event from the free pool.
10020  *
10021  * Return: Pointer to the newly allocated completion-queue event if successful
10022  *         NULL otherwise.
10023  **/
10024 struct lpfc_cq_event *
10025 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10026 {
10027         struct lpfc_cq_event *cq_event;
10028         unsigned long iflags;
10029
10030         spin_lock_irqsave(&phba->hbalock, iflags);
10031         cq_event = __lpfc_sli4_cq_event_alloc(phba);
10032         spin_unlock_irqrestore(&phba->hbalock, iflags);
10033         return cq_event;
10034 }
10035
10036 /**
10037  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10038  * @phba: pointer to lpfc hba data structure.
10039  * @cq_event: pointer to the completion queue event to be freed.
10040  *
10041  * This routine is the lock free version of the API invoked to release a
10042  * completion-queue event back into the free pool.
10043  **/
10044 void
10045 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10046                              struct lpfc_cq_event *cq_event)
10047 {
10048         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10049 }
10050
10051 /**
10052  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10053  * @phba: pointer to lpfc hba data structure.
10054  * @cq_event: pointer to the completion queue event to be freed.
10055  *
10056  * This routine is the lock version of the API invoked to release a
10057  * completion-queue event back into the free pool.
10058  **/
10059 void
10060 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10061                            struct lpfc_cq_event *cq_event)
10062 {
10063         unsigned long iflags;
10064         spin_lock_irqsave(&phba->hbalock, iflags);
10065         __lpfc_sli4_cq_event_release(phba, cq_event);
10066         spin_unlock_irqrestore(&phba->hbalock, iflags);
10067 }
10068
10069 /**
10070  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10071  * @phba: pointer to lpfc hba data structure.
10072  *
10073  * This routine is to free all the pending completion-queue events to the
10074  * back into the free pool for device reset.
10075  **/
10076 static void
10077 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10078 {
10079         LIST_HEAD(cqelist);
10080         struct lpfc_cq_event *cqe;
10081         unsigned long iflags;
10082
10083         /* Retrieve all the pending WCQEs from pending WCQE lists */
10084         spin_lock_irqsave(&phba->hbalock, iflags);
10085         /* Pending FCP XRI abort events */
10086         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10087                          &cqelist);
10088         /* Pending ELS XRI abort events */
10089         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10090                          &cqelist);
10091         /* Pending asynnc events */
10092         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10093                          &cqelist);
10094         spin_unlock_irqrestore(&phba->hbalock, iflags);
10095
10096         while (!list_empty(&cqelist)) {
10097                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10098                 lpfc_sli4_cq_event_release(phba, cqe);
10099         }
10100 }
10101
10102 /**
10103  * lpfc_pci_function_reset - Reset pci function.
10104  * @phba: pointer to lpfc hba data structure.
10105  *
10106  * This routine is invoked to request a PCI function reset. It will destroys
10107  * all resources assigned to the PCI function which originates this request.
10108  *
10109  * Return codes
10110  *      0 - successful
10111  *      -ENOMEM - No available memory
10112  *      -EIO - The mailbox failed to complete successfully.
10113  **/
10114 int
10115 lpfc_pci_function_reset(struct lpfc_hba *phba)
10116 {
10117         LPFC_MBOXQ_t *mboxq;
10118         uint32_t rc = 0, if_type;
10119         uint32_t shdr_status, shdr_add_status;
10120         uint32_t rdy_chk;
10121         uint32_t port_reset = 0;
10122         union lpfc_sli4_cfg_shdr *shdr;
10123         struct lpfc_register reg_data;
10124         uint16_t devid;
10125
10126         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10127         switch (if_type) {
10128         case LPFC_SLI_INTF_IF_TYPE_0:
10129                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10130                                                        GFP_KERNEL);
10131                 if (!mboxq) {
10132                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10133                                         "0494 Unable to allocate memory for "
10134                                         "issuing SLI_FUNCTION_RESET mailbox "
10135                                         "command\n");
10136                         return -ENOMEM;
10137                 }
10138
10139                 /* Setup PCI function reset mailbox-ioctl command */
10140                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10141                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10142                                  LPFC_SLI4_MBX_EMBED);
10143                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10144                 shdr = (union lpfc_sli4_cfg_shdr *)
10145                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10146                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10147                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10148                                          &shdr->response);
10149                 if (rc != MBX_TIMEOUT)
10150                         mempool_free(mboxq, phba->mbox_mem_pool);
10151                 if (shdr_status || shdr_add_status || rc) {
10152                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10153                                         "0495 SLI_FUNCTION_RESET mailbox "
10154                                         "failed with status x%x add_status x%x,"
10155                                         " mbx status x%x\n",
10156                                         shdr_status, shdr_add_status, rc);
10157                         rc = -ENXIO;
10158                 }
10159                 break;
10160         case LPFC_SLI_INTF_IF_TYPE_2:
10161         case LPFC_SLI_INTF_IF_TYPE_6:
10162 wait:
10163                 /*
10164                  * Poll the Port Status Register and wait for RDY for
10165                  * up to 30 seconds. If the port doesn't respond, treat
10166                  * it as an error.
10167                  */
10168                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10169                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10170                                 STATUSregaddr, &reg_data.word0)) {
10171                                 rc = -ENODEV;
10172                                 goto out;
10173                         }
10174                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10175                                 break;
10176                         msleep(20);
10177                 }
10178
10179                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10180                         phba->work_status[0] = readl(
10181                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10182                         phba->work_status[1] = readl(
10183                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10184                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10185                                         "2890 Port not ready, port status reg "
10186                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10187                                         reg_data.word0,
10188                                         phba->work_status[0],
10189                                         phba->work_status[1]);
10190                         rc = -ENODEV;
10191                         goto out;
10192                 }
10193
10194                 if (!port_reset) {
10195                         /*
10196                          * Reset the port now
10197                          */
10198                         reg_data.word0 = 0;
10199                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10200                                LPFC_SLIPORT_LITTLE_ENDIAN);
10201                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10202                                LPFC_SLIPORT_INIT_PORT);
10203                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10204                                CTRLregaddr);
10205                         /* flush */
10206                         pci_read_config_word(phba->pcidev,
10207                                              PCI_DEVICE_ID, &devid);
10208
10209                         port_reset = 1;
10210                         msleep(20);
10211                         goto wait;
10212                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10213                         rc = -ENODEV;
10214                         goto out;
10215                 }
10216                 break;
10217
10218         case LPFC_SLI_INTF_IF_TYPE_1:
10219         default:
10220                 break;
10221         }
10222
10223 out:
10224         /* Catch the not-ready port failure after a port reset. */
10225         if (rc) {
10226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10227                                 "3317 HBA not functional: IP Reset Failed "
10228                                 "try: echo fw_reset > board_mode\n");
10229                 rc = -ENODEV;
10230         }
10231
10232         return rc;
10233 }
10234
10235 /**
10236  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10237  * @phba: pointer to lpfc hba data structure.
10238  *
10239  * This routine is invoked to set up the PCI device memory space for device
10240  * with SLI-4 interface spec.
10241  *
10242  * Return codes
10243  *      0 - successful
10244  *      other values - error
10245  **/
10246 static int
10247 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10248 {
10249         struct pci_dev *pdev = phba->pcidev;
10250         unsigned long bar0map_len, bar1map_len, bar2map_len;
10251         int error;
10252         uint32_t if_type;
10253
10254         if (!pdev)
10255                 return -ENODEV;
10256
10257         /* Set the device DMA mask size */
10258         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10259         if (error)
10260                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10261         if (error)
10262                 return error;
10263
10264         /*
10265          * The BARs and register set definitions and offset locations are
10266          * dependent on the if_type.
10267          */
10268         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10269                                   &phba->sli4_hba.sli_intf.word0)) {
10270                 return -ENODEV;
10271         }
10272
10273         /* There is no SLI3 failback for SLI4 devices. */
10274         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10275             LPFC_SLI_INTF_VALID) {
10276                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10277                                 "2894 SLI_INTF reg contents invalid "
10278                                 "sli_intf reg 0x%x\n",
10279                                 phba->sli4_hba.sli_intf.word0);
10280                 return -ENODEV;
10281         }
10282
10283         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10284         /*
10285          * Get the bus address of SLI4 device Bar regions and the
10286          * number of bytes required by each mapping. The mapping of the
10287          * particular PCI BARs regions is dependent on the type of
10288          * SLI4 device.
10289          */
10290         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10291                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10292                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10293
10294                 /*
10295                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10296                  * addr
10297                  */
10298                 phba->sli4_hba.conf_regs_memmap_p =
10299                         ioremap(phba->pci_bar0_map, bar0map_len);
10300                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10301                         dev_printk(KERN_ERR, &pdev->dev,
10302                                    "ioremap failed for SLI4 PCI config "
10303                                    "registers.\n");
10304                         return -ENODEV;
10305                 }
10306                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10307                 /* Set up BAR0 PCI config space register memory map */
10308                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10309         } else {
10310                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10311                 bar0map_len = pci_resource_len(pdev, 1);
10312                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10313                         dev_printk(KERN_ERR, &pdev->dev,
10314                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10315                         return -ENODEV;
10316                 }
10317                 phba->sli4_hba.conf_regs_memmap_p =
10318                                 ioremap(phba->pci_bar0_map, bar0map_len);
10319                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10320                         dev_printk(KERN_ERR, &pdev->dev,
10321                                 "ioremap failed for SLI4 PCI config "
10322                                 "registers.\n");
10323                         return -ENODEV;
10324                 }
10325                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10326         }
10327
10328         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10329                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10330                         /*
10331                          * Map SLI4 if type 0 HBA Control Register base to a
10332                          * kernel virtual address and setup the registers.
10333                          */
10334                         phba->pci_bar1_map = pci_resource_start(pdev,
10335                                                                 PCI_64BIT_BAR2);
10336                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10337                         phba->sli4_hba.ctrl_regs_memmap_p =
10338                                         ioremap(phba->pci_bar1_map,
10339                                                 bar1map_len);
10340                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10341                                 dev_err(&pdev->dev,
10342                                            "ioremap failed for SLI4 HBA "
10343                                             "control registers.\n");
10344                                 error = -ENOMEM;
10345                                 goto out_iounmap_conf;
10346                         }
10347                         phba->pci_bar2_memmap_p =
10348                                          phba->sli4_hba.ctrl_regs_memmap_p;
10349                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10350                 } else {
10351                         error = -ENOMEM;
10352                         goto out_iounmap_conf;
10353                 }
10354         }
10355
10356         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10357             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10358                 /*
10359                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10360                  * virtual address and setup the registers.
10361                  */
10362                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10363                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10364                 phba->sli4_hba.drbl_regs_memmap_p =
10365                                 ioremap(phba->pci_bar1_map, bar1map_len);
10366                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10367                         dev_err(&pdev->dev,
10368                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10369                         error = -ENOMEM;
10370                         goto out_iounmap_conf;
10371                 }
10372                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10373                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10374         }
10375
10376         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10377                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10378                         /*
10379                          * Map SLI4 if type 0 HBA Doorbell Register base to
10380                          * a kernel virtual address and setup the registers.
10381                          */
10382                         phba->pci_bar2_map = pci_resource_start(pdev,
10383                                                                 PCI_64BIT_BAR4);
10384                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10385                         phba->sli4_hba.drbl_regs_memmap_p =
10386                                         ioremap(phba->pci_bar2_map,
10387                                                 bar2map_len);
10388                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10389                                 dev_err(&pdev->dev,
10390                                            "ioremap failed for SLI4 HBA"
10391                                            " doorbell registers.\n");
10392                                 error = -ENOMEM;
10393                                 goto out_iounmap_ctrl;
10394                         }
10395                         phba->pci_bar4_memmap_p =
10396                                         phba->sli4_hba.drbl_regs_memmap_p;
10397                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10398                         if (error)
10399                                 goto out_iounmap_all;
10400                 } else {
10401                         error = -ENOMEM;
10402                         goto out_iounmap_all;
10403                 }
10404         }
10405
10406         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10407             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10408                 /*
10409                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10410                  * virtual address and setup the registers.
10411                  */
10412                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10413                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10414                 phba->sli4_hba.dpp_regs_memmap_p =
10415                                 ioremap(phba->pci_bar2_map, bar2map_len);
10416                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10417                         dev_err(&pdev->dev,
10418                            "ioremap failed for SLI4 HBA dpp registers.\n");
10419                         error = -ENOMEM;
10420                         goto out_iounmap_ctrl;
10421                 }
10422                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10423         }
10424
10425         /* Set up the EQ/CQ register handeling functions now */
10426         switch (if_type) {
10427         case LPFC_SLI_INTF_IF_TYPE_0:
10428         case LPFC_SLI_INTF_IF_TYPE_2:
10429                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10430                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10431                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10432                 break;
10433         case LPFC_SLI_INTF_IF_TYPE_6:
10434                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10435                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10436                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10437                 break;
10438         default:
10439                 break;
10440         }
10441
10442         return 0;
10443
10444 out_iounmap_all:
10445         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10446 out_iounmap_ctrl:
10447         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10448 out_iounmap_conf:
10449         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10450
10451         return error;
10452 }
10453
10454 /**
10455  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10456  * @phba: pointer to lpfc hba data structure.
10457  *
10458  * This routine is invoked to unset the PCI device memory space for device
10459  * with SLI-4 interface spec.
10460  **/
10461 static void
10462 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10463 {
10464         uint32_t if_type;
10465         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10466
10467         switch (if_type) {
10468         case LPFC_SLI_INTF_IF_TYPE_0:
10469                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10470                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10471                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10472                 break;
10473         case LPFC_SLI_INTF_IF_TYPE_2:
10474                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10475                 break;
10476         case LPFC_SLI_INTF_IF_TYPE_6:
10477                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10478                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10479                 if (phba->sli4_hba.dpp_regs_memmap_p)
10480                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10481                 break;
10482         case LPFC_SLI_INTF_IF_TYPE_1:
10483         default:
10484                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10485                            "FATAL - unsupported SLI4 interface type - %d\n",
10486                            if_type);
10487                 break;
10488         }
10489 }
10490
10491 /**
10492  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10493  * @phba: pointer to lpfc hba data structure.
10494  *
10495  * This routine is invoked to enable the MSI-X interrupt vectors to device
10496  * with SLI-3 interface specs.
10497  *
10498  * Return codes
10499  *   0 - successful
10500  *   other values - error
10501  **/
10502 static int
10503 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10504 {
10505         int rc;
10506         LPFC_MBOXQ_t *pmb;
10507
10508         /* Set up MSI-X multi-message vectors */
10509         rc = pci_alloc_irq_vectors(phba->pcidev,
10510                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10511         if (rc < 0) {
10512                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10513                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10514                 goto vec_fail_out;
10515         }
10516
10517         /*
10518          * Assign MSI-X vectors to interrupt handlers
10519          */
10520
10521         /* vector-0 is associated to slow-path handler */
10522         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10523                          &lpfc_sli_sp_intr_handler, 0,
10524                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10525         if (rc) {
10526                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10527                                 "0421 MSI-X slow-path request_irq failed "
10528                                 "(%d)\n", rc);
10529                 goto msi_fail_out;
10530         }
10531
10532         /* vector-1 is associated to fast-path handler */
10533         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10534                          &lpfc_sli_fp_intr_handler, 0,
10535                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10536
10537         if (rc) {
10538                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10539                                 "0429 MSI-X fast-path request_irq failed "
10540                                 "(%d)\n", rc);
10541                 goto irq_fail_out;
10542         }
10543
10544         /*
10545          * Configure HBA MSI-X attention conditions to messages
10546          */
10547         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10548
10549         if (!pmb) {
10550                 rc = -ENOMEM;
10551                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10552                                 "0474 Unable to allocate memory for issuing "
10553                                 "MBOX_CONFIG_MSI command\n");
10554                 goto mem_fail_out;
10555         }
10556         rc = lpfc_config_msi(phba, pmb);
10557         if (rc)
10558                 goto mbx_fail_out;
10559         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10560         if (rc != MBX_SUCCESS) {
10561                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10562                                 "0351 Config MSI mailbox command failed, "
10563                                 "mbxCmd x%x, mbxStatus x%x\n",
10564                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10565                 goto mbx_fail_out;
10566         }
10567
10568         /* Free memory allocated for mailbox command */
10569         mempool_free(pmb, phba->mbox_mem_pool);
10570         return rc;
10571
10572 mbx_fail_out:
10573         /* Free memory allocated for mailbox command */
10574         mempool_free(pmb, phba->mbox_mem_pool);
10575
10576 mem_fail_out:
10577         /* free the irq already requested */
10578         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10579
10580 irq_fail_out:
10581         /* free the irq already requested */
10582         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10583
10584 msi_fail_out:
10585         /* Unconfigure MSI-X capability structure */
10586         pci_free_irq_vectors(phba->pcidev);
10587
10588 vec_fail_out:
10589         return rc;
10590 }
10591
10592 /**
10593  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10594  * @phba: pointer to lpfc hba data structure.
10595  *
10596  * This routine is invoked to enable the MSI interrupt mode to device with
10597  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10598  * enable the MSI vector. The device driver is responsible for calling the
10599  * request_irq() to register MSI vector with a interrupt the handler, which
10600  * is done in this function.
10601  *
10602  * Return codes
10603  *      0 - successful
10604  *      other values - error
10605  */
10606 static int
10607 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10608 {
10609         int rc;
10610
10611         rc = pci_enable_msi(phba->pcidev);
10612         if (!rc)
10613                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10614                                 "0462 PCI enable MSI mode success.\n");
10615         else {
10616                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10617                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10618                 return rc;
10619         }
10620
10621         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10622                          0, LPFC_DRIVER_NAME, phba);
10623         if (rc) {
10624                 pci_disable_msi(phba->pcidev);
10625                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10626                                 "0478 MSI request_irq failed (%d)\n", rc);
10627         }
10628         return rc;
10629 }
10630
10631 /**
10632  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10633  * @phba: pointer to lpfc hba data structure.
10634  *
10635  * This routine is invoked to enable device interrupt and associate driver's
10636  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10637  * spec. Depends on the interrupt mode configured to the driver, the driver
10638  * will try to fallback from the configured interrupt mode to an interrupt
10639  * mode which is supported by the platform, kernel, and device in the order
10640  * of:
10641  * MSI-X -> MSI -> IRQ.
10642  *
10643  * Return codes
10644  *   0 - successful
10645  *   other values - error
10646  **/
10647 static uint32_t
10648 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10649 {
10650         uint32_t intr_mode = LPFC_INTR_ERROR;
10651         int retval;
10652
10653         if (cfg_mode == 2) {
10654                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10655                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10656                 if (!retval) {
10657                         /* Now, try to enable MSI-X interrupt mode */
10658                         retval = lpfc_sli_enable_msix(phba);
10659                         if (!retval) {
10660                                 /* Indicate initialization to MSI-X mode */
10661                                 phba->intr_type = MSIX;
10662                                 intr_mode = 2;
10663                         }
10664                 }
10665         }
10666
10667         /* Fallback to MSI if MSI-X initialization failed */
10668         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10669                 retval = lpfc_sli_enable_msi(phba);
10670                 if (!retval) {
10671                         /* Indicate initialization to MSI mode */
10672                         phba->intr_type = MSI;
10673                         intr_mode = 1;
10674                 }
10675         }
10676
10677         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10678         if (phba->intr_type == NONE) {
10679                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10680                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10681                 if (!retval) {
10682                         /* Indicate initialization to INTx mode */
10683                         phba->intr_type = INTx;
10684                         intr_mode = 0;
10685                 }
10686         }
10687         return intr_mode;
10688 }
10689
10690 /**
10691  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10692  * @phba: pointer to lpfc hba data structure.
10693  *
10694  * This routine is invoked to disable device interrupt and disassociate the
10695  * driver's interrupt handler(s) from interrupt vector(s) to device with
10696  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10697  * release the interrupt vector(s) for the message signaled interrupt.
10698  **/
10699 static void
10700 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10701 {
10702         int nr_irqs, i;
10703
10704         if (phba->intr_type == MSIX)
10705                 nr_irqs = LPFC_MSIX_VECTORS;
10706         else
10707                 nr_irqs = 1;
10708
10709         for (i = 0; i < nr_irqs; i++)
10710                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10711         pci_free_irq_vectors(phba->pcidev);
10712
10713         /* Reset interrupt management states */
10714         phba->intr_type = NONE;
10715         phba->sli.slistat.sli_intr = 0;
10716 }
10717
10718 /**
10719  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10720  * @phba: pointer to lpfc hba data structure.
10721  * @id: EQ vector index or Hardware Queue index
10722  * @match: LPFC_FIND_BY_EQ = match by EQ
10723  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10724  * Return the CPU that matches the selection criteria
10725  */
10726 static uint16_t
10727 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10728 {
10729         struct lpfc_vector_map_info *cpup;
10730         int cpu;
10731
10732         /* Loop through all CPUs */
10733         for_each_present_cpu(cpu) {
10734                 cpup = &phba->sli4_hba.cpu_map[cpu];
10735
10736                 /* If we are matching by EQ, there may be multiple CPUs using
10737                  * using the same vector, so select the one with
10738                  * LPFC_CPU_FIRST_IRQ set.
10739                  */
10740                 if ((match == LPFC_FIND_BY_EQ) &&
10741                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10742                     (cpup->eq == id))
10743                         return cpu;
10744
10745                 /* If matching by HDWQ, select the first CPU that matches */
10746                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10747                         return cpu;
10748         }
10749         return 0;
10750 }
10751
10752 #ifdef CONFIG_X86
10753 /**
10754  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10755  * @phba: pointer to lpfc hba data structure.
10756  * @cpu: CPU map index
10757  * @phys_id: CPU package physical id
10758  * @core_id: CPU core id
10759  */
10760 static int
10761 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10762                 uint16_t phys_id, uint16_t core_id)
10763 {
10764         struct lpfc_vector_map_info *cpup;
10765         int idx;
10766
10767         for_each_present_cpu(idx) {
10768                 cpup = &phba->sli4_hba.cpu_map[idx];
10769                 /* Does the cpup match the one we are looking for */
10770                 if ((cpup->phys_id == phys_id) &&
10771                     (cpup->core_id == core_id) &&
10772                     (cpu != idx))
10773                         return 1;
10774         }
10775         return 0;
10776 }
10777 #endif
10778
10779 /*
10780  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10781  * @phba: pointer to lpfc hba data structure.
10782  * @eqidx: index for eq and irq vector
10783  * @flag: flags to set for vector_map structure
10784  * @cpu: cpu used to index vector_map structure
10785  *
10786  * The routine assigns eq info into vector_map structure
10787  */
10788 static inline void
10789 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10790                         unsigned int cpu)
10791 {
10792         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10793         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10794
10795         cpup->eq = eqidx;
10796         cpup->flag |= flag;
10797
10798         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10799                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10800                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
10801 }
10802
10803 /**
10804  * lpfc_cpu_map_array_init - Initialize cpu_map structure
10805  * @phba: pointer to lpfc hba data structure.
10806  *
10807  * The routine initializes the cpu_map array structure
10808  */
10809 static void
10810 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10811 {
10812         struct lpfc_vector_map_info *cpup;
10813         struct lpfc_eq_intr_info *eqi;
10814         int cpu;
10815
10816         for_each_possible_cpu(cpu) {
10817                 cpup = &phba->sli4_hba.cpu_map[cpu];
10818                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10819                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10820                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10821                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10822                 cpup->flag = 0;
10823                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10824                 INIT_LIST_HEAD(&eqi->list);
10825                 eqi->icnt = 0;
10826         }
10827 }
10828
10829 /**
10830  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10831  * @phba: pointer to lpfc hba data structure.
10832  *
10833  * The routine initializes the hba_eq_hdl array structure
10834  */
10835 static void
10836 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10837 {
10838         struct lpfc_hba_eq_hdl *eqhdl;
10839         int i;
10840
10841         for (i = 0; i < phba->cfg_irq_chann; i++) {
10842                 eqhdl = lpfc_get_eq_hdl(i);
10843                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10844                 eqhdl->phba = phba;
10845         }
10846 }
10847
10848 /**
10849  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10850  * @phba: pointer to lpfc hba data structure.
10851  * @vectors: number of msix vectors allocated.
10852  *
10853  * The routine will figure out the CPU affinity assignment for every
10854  * MSI-X vector allocated for the HBA.
10855  * In addition, the CPU to IO channel mapping will be calculated
10856  * and the phba->sli4_hba.cpu_map array will reflect this.
10857  */
10858 static void
10859 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10860 {
10861         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10862         int max_phys_id, min_phys_id;
10863         int max_core_id, min_core_id;
10864         struct lpfc_vector_map_info *cpup;
10865         struct lpfc_vector_map_info *new_cpup;
10866 #ifdef CONFIG_X86
10867         struct cpuinfo_x86 *cpuinfo;
10868 #endif
10869 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
10870         struct lpfc_hdwq_stat *c_stat;
10871 #endif
10872
10873         max_phys_id = 0;
10874         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10875         max_core_id = 0;
10876         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10877
10878         /* Update CPU map with physical id and core id of each CPU */
10879         for_each_present_cpu(cpu) {
10880                 cpup = &phba->sli4_hba.cpu_map[cpu];
10881 #ifdef CONFIG_X86
10882                 cpuinfo = &cpu_data(cpu);
10883                 cpup->phys_id = cpuinfo->phys_proc_id;
10884                 cpup->core_id = cpuinfo->cpu_core_id;
10885                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10886                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10887 #else
10888                 /* No distinction between CPUs for other platforms */
10889                 cpup->phys_id = 0;
10890                 cpup->core_id = cpu;
10891 #endif
10892
10893                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10894                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
10895                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10896
10897                 if (cpup->phys_id > max_phys_id)
10898                         max_phys_id = cpup->phys_id;
10899                 if (cpup->phys_id < min_phys_id)
10900                         min_phys_id = cpup->phys_id;
10901
10902                 if (cpup->core_id > max_core_id)
10903                         max_core_id = cpup->core_id;
10904                 if (cpup->core_id < min_core_id)
10905                         min_core_id = cpup->core_id;
10906         }
10907
10908         /* After looking at each irq vector assigned to this pcidev, its
10909          * possible to see that not ALL CPUs have been accounted for.
10910          * Next we will set any unassigned (unaffinitized) cpu map
10911          * entries to a IRQ on the same phys_id.
10912          */
10913         first_cpu = cpumask_first(cpu_present_mask);
10914         start_cpu = first_cpu;
10915
10916         for_each_present_cpu(cpu) {
10917                 cpup = &phba->sli4_hba.cpu_map[cpu];
10918
10919                 /* Is this CPU entry unassigned */
10920                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10921                         /* Mark CPU as IRQ not assigned by the kernel */
10922                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10923
10924                         /* If so, find a new_cpup thats on the the SAME
10925                          * phys_id as cpup. start_cpu will start where we
10926                          * left off so all unassigned entries don't get assgined
10927                          * the IRQ of the first entry.
10928                          */
10929                         new_cpu = start_cpu;
10930                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10931                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10932                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10933                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
10934                                     (new_cpup->phys_id == cpup->phys_id))
10935                                         goto found_same;
10936                                 new_cpu = cpumask_next(
10937                                         new_cpu, cpu_present_mask);
10938                                 if (new_cpu == nr_cpumask_bits)
10939                                         new_cpu = first_cpu;
10940                         }
10941                         /* At this point, we leave the CPU as unassigned */
10942                         continue;
10943 found_same:
10944                         /* We found a matching phys_id, so copy the IRQ info */
10945                         cpup->eq = new_cpup->eq;
10946
10947                         /* Bump start_cpu to the next slot to minmize the
10948                          * chance of having multiple unassigned CPU entries
10949                          * selecting the same IRQ.
10950                          */
10951                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10952                         if (start_cpu == nr_cpumask_bits)
10953                                 start_cpu = first_cpu;
10954
10955                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10956                                         "3337 Set Affinity: CPU %d "
10957                                         "eq %d from peer cpu %d same "
10958                                         "phys_id (%d)\n",
10959                                         cpu, cpup->eq, new_cpu,
10960                                         cpup->phys_id);
10961                 }
10962         }
10963
10964         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10965         start_cpu = first_cpu;
10966
10967         for_each_present_cpu(cpu) {
10968                 cpup = &phba->sli4_hba.cpu_map[cpu];
10969
10970                 /* Is this entry unassigned */
10971                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10972                         /* Mark it as IRQ not assigned by the kernel */
10973                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10974
10975                         /* If so, find a new_cpup thats on ANY phys_id
10976                          * as the cpup. start_cpu will start where we
10977                          * left off so all unassigned entries don't get
10978                          * assigned the IRQ of the first entry.
10979                          */
10980                         new_cpu = start_cpu;
10981                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10982                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10983                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10984                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
10985                                         goto found_any;
10986                                 new_cpu = cpumask_next(
10987                                         new_cpu, cpu_present_mask);
10988                                 if (new_cpu == nr_cpumask_bits)
10989                                         new_cpu = first_cpu;
10990                         }
10991                         /* We should never leave an entry unassigned */
10992                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10993                                         "3339 Set Affinity: CPU %d "
10994                                         "eq %d UNASSIGNED\n",
10995                                         cpup->hdwq, cpup->eq);
10996                         continue;
10997 found_any:
10998                         /* We found an available entry, copy the IRQ info */
10999                         cpup->eq = new_cpup->eq;
11000
11001                         /* Bump start_cpu to the next slot to minmize the
11002                          * chance of having multiple unassigned CPU entries
11003                          * selecting the same IRQ.
11004                          */
11005                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11006                         if (start_cpu == nr_cpumask_bits)
11007                                 start_cpu = first_cpu;
11008
11009                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11010                                         "3338 Set Affinity: CPU %d "
11011                                         "eq %d from peer cpu %d (%d/%d)\n",
11012                                         cpu, cpup->eq, new_cpu,
11013                                         new_cpup->phys_id, new_cpup->core_id);
11014                 }
11015         }
11016
11017         /* Assign hdwq indices that are unique across all cpus in the map
11018          * that are also FIRST_CPUs.
11019          */
11020         idx = 0;
11021         for_each_present_cpu(cpu) {
11022                 cpup = &phba->sli4_hba.cpu_map[cpu];
11023
11024                 /* Only FIRST IRQs get a hdwq index assignment. */
11025                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11026                         continue;
11027
11028                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
11029                 cpup->hdwq = idx;
11030                 idx++;
11031                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11032                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
11033                                 "hdwq %d eq %d flg x%x\n",
11034                                 cpu, cpup->phys_id, cpup->core_id,
11035                                 cpup->hdwq, cpup->eq, cpup->flag);
11036         }
11037         /* Associate a hdwq with each cpu_map entry
11038          * This will be 1 to 1 - hdwq to cpu, unless there are less
11039          * hardware queues then CPUs. For that case we will just round-robin
11040          * the available hardware queues as they get assigned to CPUs.
11041          * The next_idx is the idx from the FIRST_CPU loop above to account
11042          * for irq_chann < hdwq.  The idx is used for round-robin assignments
11043          * and needs to start at 0.
11044          */
11045         next_idx = idx;
11046         start_cpu = 0;
11047         idx = 0;
11048         for_each_present_cpu(cpu) {
11049                 cpup = &phba->sli4_hba.cpu_map[cpu];
11050
11051                 /* FIRST cpus are already mapped. */
11052                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11053                         continue;
11054
11055                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11056                  * of the unassigned cpus to the next idx so that all
11057                  * hdw queues are fully utilized.
11058                  */
11059                 if (next_idx < phba->cfg_hdw_queue) {
11060                         cpup->hdwq = next_idx;
11061                         next_idx++;
11062                         continue;
11063                 }
11064
11065                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11066                  * Hardware Queue for another CPU, so be smart about it
11067                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11068                  * (CPU package) and core_id.
11069                  */
11070                 new_cpu = start_cpu;
11071                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11072                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11073                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11074                             new_cpup->phys_id == cpup->phys_id &&
11075                             new_cpup->core_id == cpup->core_id) {
11076                                 goto found_hdwq;
11077                         }
11078                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11079                         if (new_cpu == nr_cpumask_bits)
11080                                 new_cpu = first_cpu;
11081                 }
11082
11083                 /* If we can't match both phys_id and core_id,
11084                  * settle for just a phys_id match.
11085                  */
11086                 new_cpu = start_cpu;
11087                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11088                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11089                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11090                             new_cpup->phys_id == cpup->phys_id)
11091                                 goto found_hdwq;
11092
11093                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11094                         if (new_cpu == nr_cpumask_bits)
11095                                 new_cpu = first_cpu;
11096                 }
11097
11098                 /* Otherwise just round robin on cfg_hdw_queue */
11099                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11100                 idx++;
11101                 goto logit;
11102  found_hdwq:
11103                 /* We found an available entry, copy the IRQ info */
11104                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11105                 if (start_cpu == nr_cpumask_bits)
11106                         start_cpu = first_cpu;
11107                 cpup->hdwq = new_cpup->hdwq;
11108  logit:
11109                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11110                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11111                                 "hdwq %d eq %d flg x%x\n",
11112                                 cpu, cpup->phys_id, cpup->core_id,
11113                                 cpup->hdwq, cpup->eq, cpup->flag);
11114         }
11115
11116         /*
11117          * Initialize the cpu_map slots for not-present cpus in case
11118          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11119          */
11120         idx = 0;
11121         for_each_possible_cpu(cpu) {
11122                 cpup = &phba->sli4_hba.cpu_map[cpu];
11123 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11124                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
11125                 c_stat->hdwq_no = cpup->hdwq;
11126 #endif
11127                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11128                         continue;
11129
11130                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11131 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11132                 c_stat->hdwq_no = cpup->hdwq;
11133 #endif
11134                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11135                                 "3340 Set Affinity: not present "
11136                                 "CPU %d hdwq %d\n",
11137                                 cpu, cpup->hdwq);
11138         }
11139
11140         /* The cpu_map array will be used later during initialization
11141          * when EQ / CQ / WQs are allocated and configured.
11142          */
11143         return;
11144 }
11145
11146 /**
11147  * lpfc_cpuhp_get_eq
11148  *
11149  * @phba:   pointer to lpfc hba data structure.
11150  * @cpu:    cpu going offline
11151  * @eqlist:
11152  */
11153 static int
11154 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11155                   struct list_head *eqlist)
11156 {
11157         const struct cpumask *maskp;
11158         struct lpfc_queue *eq;
11159         struct cpumask *tmp;
11160         u16 idx;
11161
11162         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
11163         if (!tmp)
11164                 return -ENOMEM;
11165
11166         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11167                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11168                 if (!maskp)
11169                         continue;
11170                 /*
11171                  * if irq is not affinitized to the cpu going
11172                  * then we don't need to poll the eq attached
11173                  * to it.
11174                  */
11175                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
11176                         continue;
11177                 /* get the cpus that are online and are affini-
11178                  * tized to this irq vector.  If the count is
11179                  * more than 1 then cpuhp is not going to shut-
11180                  * down this vector.  Since this cpu has not
11181                  * gone offline yet, we need >1.
11182                  */
11183                 cpumask_and(tmp, maskp, cpu_online_mask);
11184                 if (cpumask_weight(tmp) > 1)
11185                         continue;
11186
11187                 /* Now that we have an irq to shutdown, get the eq
11188                  * mapped to this irq.  Note: multiple hdwq's in
11189                  * the software can share an eq, but eventually
11190                  * only eq will be mapped to this vector
11191                  */
11192                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11193                 list_add(&eq->_poll_list, eqlist);
11194         }
11195         kfree(tmp);
11196         return 0;
11197 }
11198
11199 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11200 {
11201         if (phba->sli_rev != LPFC_SLI_REV4)
11202                 return;
11203
11204         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11205                                             &phba->cpuhp);
11206         /*
11207          * unregistering the instance doesn't stop the polling
11208          * timer. Wait for the poll timer to retire.
11209          */
11210         synchronize_rcu();
11211         del_timer_sync(&phba->cpuhp_poll_timer);
11212 }
11213
11214 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11215 {
11216         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11217                 return;
11218
11219         __lpfc_cpuhp_remove(phba);
11220 }
11221
11222 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11223 {
11224         if (phba->sli_rev != LPFC_SLI_REV4)
11225                 return;
11226
11227         rcu_read_lock();
11228
11229         if (!list_empty(&phba->poll_list))
11230                 mod_timer(&phba->cpuhp_poll_timer,
11231                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11232
11233         rcu_read_unlock();
11234
11235         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11236                                          &phba->cpuhp);
11237 }
11238
11239 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11240 {
11241         if (phba->pport->load_flag & FC_UNLOADING) {
11242                 *retval = -EAGAIN;
11243                 return true;
11244         }
11245
11246         if (phba->sli_rev != LPFC_SLI_REV4) {
11247                 *retval = 0;
11248                 return true;
11249         }
11250
11251         /* proceed with the hotplug */
11252         return false;
11253 }
11254
11255 /**
11256  * lpfc_irq_set_aff - set IRQ affinity
11257  * @eqhdl: EQ handle
11258  * @cpu: cpu to set affinity
11259  *
11260  **/
11261 static inline void
11262 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11263 {
11264         cpumask_clear(&eqhdl->aff_mask);
11265         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11266         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11267         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11268 }
11269
11270 /**
11271  * lpfc_irq_clear_aff - clear IRQ affinity
11272  * @eqhdl: EQ handle
11273  *
11274  **/
11275 static inline void
11276 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11277 {
11278         cpumask_clear(&eqhdl->aff_mask);
11279         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11280         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11281 }
11282
11283 /**
11284  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11285  * @phba: pointer to HBA context object.
11286  * @cpu: cpu going offline/online
11287  * @offline: true, cpu is going offline. false, cpu is coming online.
11288  *
11289  * If cpu is going offline, we'll try our best effort to find the next
11290  * online cpu on the phba's NUMA node and migrate all offlining IRQ affinities.
11291  *
11292  * If cpu is coming online, reaffinitize the IRQ back to the onlineng cpu.
11293  *
11294  * Note: Call only if cfg_irq_numa is enabled, otherwise rely on
11295  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11296  *
11297  **/
11298 static void
11299 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11300 {
11301         struct lpfc_vector_map_info *cpup;
11302         struct cpumask *aff_mask;
11303         unsigned int cpu_select, cpu_next, idx;
11304         const struct cpumask *numa_mask;
11305
11306         if (!phba->cfg_irq_numa)
11307                 return;
11308
11309         numa_mask = &phba->sli4_hba.numa_mask;
11310
11311         if (!cpumask_test_cpu(cpu, numa_mask))
11312                 return;
11313
11314         cpup = &phba->sli4_hba.cpu_map[cpu];
11315
11316         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11317                 return;
11318
11319         if (offline) {
11320                 /* Find next online CPU on NUMA node */
11321                 cpu_next = cpumask_next_wrap(cpu, numa_mask, cpu, true);
11322                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu_next);
11323
11324                 /* Found a valid CPU */
11325                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11326                         /* Go through each eqhdl and ensure offlining
11327                          * cpu aff_mask is migrated
11328                          */
11329                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11330                                 aff_mask = lpfc_get_aff_mask(idx);
11331
11332                                 /* Migrate affinity */
11333                                 if (cpumask_test_cpu(cpu, aff_mask))
11334                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11335                                                          cpu_select);
11336                         }
11337                 } else {
11338                         /* Rely on irqbalance if no online CPUs left on NUMA */
11339                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11340                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11341                 }
11342         } else {
11343                 /* Migrate affinity back to this CPU */
11344                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11345         }
11346 }
11347
11348 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11349 {
11350         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11351         struct lpfc_queue *eq, *next;
11352         LIST_HEAD(eqlist);
11353         int retval;
11354
11355         if (!phba) {
11356                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11357                 return 0;
11358         }
11359
11360         if (__lpfc_cpuhp_checks(phba, &retval))
11361                 return retval;
11362
11363         lpfc_irq_rebalance(phba, cpu, true);
11364
11365         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11366         if (retval)
11367                 return retval;
11368
11369         /* start polling on these eq's */
11370         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11371                 list_del_init(&eq->_poll_list);
11372                 lpfc_sli4_start_polling(eq);
11373         }
11374
11375         return 0;
11376 }
11377
11378 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11379 {
11380         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11381         struct lpfc_queue *eq, *next;
11382         unsigned int n;
11383         int retval;
11384
11385         if (!phba) {
11386                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11387                 return 0;
11388         }
11389
11390         if (__lpfc_cpuhp_checks(phba, &retval))
11391                 return retval;
11392
11393         lpfc_irq_rebalance(phba, cpu, false);
11394
11395         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11396                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11397                 if (n == cpu)
11398                         lpfc_sli4_stop_polling(eq);
11399         }
11400
11401         return 0;
11402 }
11403
11404 /**
11405  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11406  * @phba: pointer to lpfc hba data structure.
11407  *
11408  * This routine is invoked to enable the MSI-X interrupt vectors to device
11409  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
11410  * to cpus on the system.
11411  *
11412  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11413  * the number of cpus on the same numa node as this adapter.  The vectors are
11414  * allocated without requesting OS affinity mapping.  A vector will be
11415  * allocated and assigned to each online and offline cpu.  If the cpu is
11416  * online, then affinity will be set to that cpu.  If the cpu is offline, then
11417  * affinity will be set to the nearest peer cpu within the numa node that is
11418  * online.  If there are no online cpus within the numa node, affinity is not
11419  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11420  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11421  * configured.
11422  *
11423  * If numa mode is not enabled and there is more than 1 vector allocated, then
11424  * the driver relies on the managed irq interface where the OS assigns vector to
11425  * cpu affinity.  The driver will then use that affinity mapping to setup its
11426  * cpu mapping table.
11427  *
11428  * Return codes
11429  * 0 - successful
11430  * other values - error
11431  **/
11432 static int
11433 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11434 {
11435         int vectors, rc, index;
11436         char *name;
11437         const struct cpumask *numa_mask = NULL;
11438         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11439         struct lpfc_hba_eq_hdl *eqhdl;
11440         const struct cpumask *maskp;
11441         bool first;
11442         unsigned int flags = PCI_IRQ_MSIX;
11443
11444         /* Set up MSI-X multi-message vectors */
11445         vectors = phba->cfg_irq_chann;
11446
11447         if (phba->cfg_irq_numa) {
11448                 numa_mask = &phba->sli4_hba.numa_mask;
11449                 cpu_cnt = cpumask_weight(numa_mask);
11450                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11451
11452                 /* cpu: iterates over numa_mask including offline or online
11453                  * cpu_select: iterates over online numa_mask to set affinity
11454                  */
11455                 cpu = cpumask_first(numa_mask);
11456                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11457         } else {
11458                 flags |= PCI_IRQ_AFFINITY;
11459         }
11460
11461         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11462         if (rc < 0) {
11463                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11464                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11465                 goto vec_fail_out;
11466         }
11467         vectors = rc;
11468
11469         /* Assign MSI-X vectors to interrupt handlers */
11470         for (index = 0; index < vectors; index++) {
11471                 eqhdl = lpfc_get_eq_hdl(index);
11472                 name = eqhdl->handler_name;
11473                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11474                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11475                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11476
11477                 eqhdl->idx = index;
11478                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11479                          &lpfc_sli4_hba_intr_handler, 0,
11480                          name, eqhdl);
11481                 if (rc) {
11482                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11483                                         "0486 MSI-X fast-path (%d) "
11484                                         "request_irq failed (%d)\n", index, rc);
11485                         goto cfg_fail_out;
11486                 }
11487
11488                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11489
11490                 if (phba->cfg_irq_numa) {
11491                         /* If found a neighboring online cpu, set affinity */
11492                         if (cpu_select < nr_cpu_ids)
11493                                 lpfc_irq_set_aff(eqhdl, cpu_select);
11494
11495                         /* Assign EQ to cpu_map */
11496                         lpfc_assign_eq_map_info(phba, index,
11497                                                 LPFC_CPU_FIRST_IRQ,
11498                                                 cpu);
11499
11500                         /* Iterate to next offline or online cpu in numa_mask */
11501                         cpu = cpumask_next(cpu, numa_mask);
11502
11503                         /* Find next online cpu in numa_mask to set affinity */
11504                         cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11505                 } else if (vectors == 1) {
11506                         cpu = cpumask_first(cpu_present_mask);
11507                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11508                                                 cpu);
11509                 } else {
11510                         maskp = pci_irq_get_affinity(phba->pcidev, index);
11511
11512                         first = true;
11513                         /* Loop through all CPUs associated with vector index */
11514                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11515                                 /* If this is the first CPU thats assigned to
11516                                  * this vector, set LPFC_CPU_FIRST_IRQ.
11517                                  */
11518                                 lpfc_assign_eq_map_info(phba, index,
11519                                                         first ?
11520                                                         LPFC_CPU_FIRST_IRQ : 0,
11521                                                         cpu);
11522                                 if (first)
11523                                         first = false;
11524                         }
11525                 }
11526         }
11527
11528         if (vectors != phba->cfg_irq_chann) {
11529                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11530                                 "3238 Reducing IO channels to match number of "
11531                                 "MSI-X vectors, requested %d got %d\n",
11532                                 phba->cfg_irq_chann, vectors);
11533                 if (phba->cfg_irq_chann > vectors)
11534                         phba->cfg_irq_chann = vectors;
11535         }
11536
11537         return rc;
11538
11539 cfg_fail_out:
11540         /* free the irq already requested */
11541         for (--index; index >= 0; index--) {
11542                 eqhdl = lpfc_get_eq_hdl(index);
11543                 lpfc_irq_clear_aff(eqhdl);
11544                 irq_set_affinity_hint(eqhdl->irq, NULL);
11545                 free_irq(eqhdl->irq, eqhdl);
11546         }
11547
11548         /* Unconfigure MSI-X capability structure */
11549         pci_free_irq_vectors(phba->pcidev);
11550
11551 vec_fail_out:
11552         return rc;
11553 }
11554
11555 /**
11556  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11557  * @phba: pointer to lpfc hba data structure.
11558  *
11559  * This routine is invoked to enable the MSI interrupt mode to device with
11560  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11561  * called to enable the MSI vector. The device driver is responsible for
11562  * calling the request_irq() to register MSI vector with a interrupt the
11563  * handler, which is done in this function.
11564  *
11565  * Return codes
11566  *      0 - successful
11567  *      other values - error
11568  **/
11569 static int
11570 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11571 {
11572         int rc, index;
11573         unsigned int cpu;
11574         struct lpfc_hba_eq_hdl *eqhdl;
11575
11576         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11577                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11578         if (rc > 0)
11579                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11580                                 "0487 PCI enable MSI mode success.\n");
11581         else {
11582                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11583                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11584                 return rc ? rc : -1;
11585         }
11586
11587         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11588                          0, LPFC_DRIVER_NAME, phba);
11589         if (rc) {
11590                 pci_free_irq_vectors(phba->pcidev);
11591                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11592                                 "0490 MSI request_irq failed (%d)\n", rc);
11593                 return rc;
11594         }
11595
11596         eqhdl = lpfc_get_eq_hdl(0);
11597         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11598
11599         cpu = cpumask_first(cpu_present_mask);
11600         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11601
11602         for (index = 0; index < phba->cfg_irq_chann; index++) {
11603                 eqhdl = lpfc_get_eq_hdl(index);
11604                 eqhdl->idx = index;
11605         }
11606
11607         return 0;
11608 }
11609
11610 /**
11611  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11612  * @phba: pointer to lpfc hba data structure.
11613  *
11614  * This routine is invoked to enable device interrupt and associate driver's
11615  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11616  * interface spec. Depends on the interrupt mode configured to the driver,
11617  * the driver will try to fallback from the configured interrupt mode to an
11618  * interrupt mode which is supported by the platform, kernel, and device in
11619  * the order of:
11620  * MSI-X -> MSI -> IRQ.
11621  *
11622  * Return codes
11623  *      0 - successful
11624  *      other values - error
11625  **/
11626 static uint32_t
11627 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11628 {
11629         uint32_t intr_mode = LPFC_INTR_ERROR;
11630         int retval, idx;
11631
11632         if (cfg_mode == 2) {
11633                 /* Preparation before conf_msi mbox cmd */
11634                 retval = 0;
11635                 if (!retval) {
11636                         /* Now, try to enable MSI-X interrupt mode */
11637                         retval = lpfc_sli4_enable_msix(phba);
11638                         if (!retval) {
11639                                 /* Indicate initialization to MSI-X mode */
11640                                 phba->intr_type = MSIX;
11641                                 intr_mode = 2;
11642                         }
11643                 }
11644         }
11645
11646         /* Fallback to MSI if MSI-X initialization failed */
11647         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11648                 retval = lpfc_sli4_enable_msi(phba);
11649                 if (!retval) {
11650                         /* Indicate initialization to MSI mode */
11651                         phba->intr_type = MSI;
11652                         intr_mode = 1;
11653                 }
11654         }
11655
11656         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11657         if (phba->intr_type == NONE) {
11658                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11659                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11660                 if (!retval) {
11661                         struct lpfc_hba_eq_hdl *eqhdl;
11662                         unsigned int cpu;
11663
11664                         /* Indicate initialization to INTx mode */
11665                         phba->intr_type = INTx;
11666                         intr_mode = 0;
11667
11668                         eqhdl = lpfc_get_eq_hdl(0);
11669                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11670
11671                         cpu = cpumask_first(cpu_present_mask);
11672                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11673                                                 cpu);
11674                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11675                                 eqhdl = lpfc_get_eq_hdl(idx);
11676                                 eqhdl->idx = idx;
11677                         }
11678                 }
11679         }
11680         return intr_mode;
11681 }
11682
11683 /**
11684  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11685  * @phba: pointer to lpfc hba data structure.
11686  *
11687  * This routine is invoked to disable device interrupt and disassociate
11688  * the driver's interrupt handler(s) from interrupt vector(s) to device
11689  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11690  * will release the interrupt vector(s) for the message signaled interrupt.
11691  **/
11692 static void
11693 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11694 {
11695         /* Disable the currently initialized interrupt mode */
11696         if (phba->intr_type == MSIX) {
11697                 int index;
11698                 struct lpfc_hba_eq_hdl *eqhdl;
11699
11700                 /* Free up MSI-X multi-message vectors */
11701                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11702                         eqhdl = lpfc_get_eq_hdl(index);
11703                         lpfc_irq_clear_aff(eqhdl);
11704                         irq_set_affinity_hint(eqhdl->irq, NULL);
11705                         free_irq(eqhdl->irq, eqhdl);
11706                 }
11707         } else {
11708                 free_irq(phba->pcidev->irq, phba);
11709         }
11710
11711         pci_free_irq_vectors(phba->pcidev);
11712
11713         /* Reset interrupt management states */
11714         phba->intr_type = NONE;
11715         phba->sli.slistat.sli_intr = 0;
11716 }
11717
11718 /**
11719  * lpfc_unset_hba - Unset SLI3 hba device initialization
11720  * @phba: pointer to lpfc hba data structure.
11721  *
11722  * This routine is invoked to unset the HBA device initialization steps to
11723  * a device with SLI-3 interface spec.
11724  **/
11725 static void
11726 lpfc_unset_hba(struct lpfc_hba *phba)
11727 {
11728         struct lpfc_vport *vport = phba->pport;
11729         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11730
11731         spin_lock_irq(shost->host_lock);
11732         vport->load_flag |= FC_UNLOADING;
11733         spin_unlock_irq(shost->host_lock);
11734
11735         kfree(phba->vpi_bmask);
11736         kfree(phba->vpi_ids);
11737
11738         lpfc_stop_hba_timers(phba);
11739
11740         phba->pport->work_port_events = 0;
11741
11742         lpfc_sli_hba_down(phba);
11743
11744         lpfc_sli_brdrestart(phba);
11745
11746         lpfc_sli_disable_intr(phba);
11747
11748         return;
11749 }
11750
11751 /**
11752  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11753  * @phba: Pointer to HBA context object.
11754  *
11755  * This function is called in the SLI4 code path to wait for completion
11756  * of device's XRIs exchange busy. It will check the XRI exchange busy
11757  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11758  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11759  * I/Os every 30 seconds, log error message, and wait forever. Only when
11760  * all XRI exchange busy complete, the driver unload shall proceed with
11761  * invoking the function reset ioctl mailbox command to the CNA and the
11762  * the rest of the driver unload resource release.
11763  **/
11764 static void
11765 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11766 {
11767         struct lpfc_sli4_hdw_queue *qp;
11768         int idx, ccnt;
11769         int wait_time = 0;
11770         int io_xri_cmpl = 1;
11771         int nvmet_xri_cmpl = 1;
11772         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11773
11774         /* Driver just aborted IOs during the hba_unset process.  Pause
11775          * here to give the HBA time to complete the IO and get entries
11776          * into the abts lists.
11777          */
11778         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11779
11780         /* Wait for NVME pending IO to flush back to transport. */
11781         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11782                 lpfc_nvme_wait_for_io_drain(phba);
11783
11784         ccnt = 0;
11785         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11786                 qp = &phba->sli4_hba.hdwq[idx];
11787                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11788                 if (!io_xri_cmpl) /* if list is NOT empty */
11789                         ccnt++;
11790         }
11791         if (ccnt)
11792                 io_xri_cmpl = 0;
11793
11794         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11795                 nvmet_xri_cmpl =
11796                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11797         }
11798
11799         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11800                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11801                         if (!nvmet_xri_cmpl)
11802                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11803                                                 "6424 NVMET XRI exchange busy "
11804                                                 "wait time: %d seconds.\n",
11805                                                 wait_time/1000);
11806                         if (!io_xri_cmpl)
11807                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11808                                                 "6100 IO XRI exchange busy "
11809                                                 "wait time: %d seconds.\n",
11810                                                 wait_time/1000);
11811                         if (!els_xri_cmpl)
11812                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11813                                                 "2878 ELS XRI exchange busy "
11814                                                 "wait time: %d seconds.\n",
11815                                                 wait_time/1000);
11816                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11817                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11818                 } else {
11819                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11820                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11821                 }
11822
11823                 ccnt = 0;
11824                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11825                         qp = &phba->sli4_hba.hdwq[idx];
11826                         io_xri_cmpl = list_empty(
11827                             &qp->lpfc_abts_io_buf_list);
11828                         if (!io_xri_cmpl) /* if list is NOT empty */
11829                                 ccnt++;
11830                 }
11831                 if (ccnt)
11832                         io_xri_cmpl = 0;
11833
11834                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11835                         nvmet_xri_cmpl = list_empty(
11836                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11837                 }
11838                 els_xri_cmpl =
11839                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11840
11841         }
11842 }
11843
11844 /**
11845  * lpfc_sli4_hba_unset - Unset the fcoe hba
11846  * @phba: Pointer to HBA context object.
11847  *
11848  * This function is called in the SLI4 code path to reset the HBA's FCoE
11849  * function. The caller is not required to hold any lock. This routine
11850  * issues PCI function reset mailbox command to reset the FCoE function.
11851  * At the end of the function, it calls lpfc_hba_down_post function to
11852  * free any pending commands.
11853  **/
11854 static void
11855 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11856 {
11857         int wait_cnt = 0;
11858         LPFC_MBOXQ_t *mboxq;
11859         struct pci_dev *pdev = phba->pcidev;
11860
11861         lpfc_stop_hba_timers(phba);
11862         if (phba->pport)
11863                 phba->sli4_hba.intr_enable = 0;
11864
11865         /*
11866          * Gracefully wait out the potential current outstanding asynchronous
11867          * mailbox command.
11868          */
11869
11870         /* First, block any pending async mailbox command from posted */
11871         spin_lock_irq(&phba->hbalock);
11872         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11873         spin_unlock_irq(&phba->hbalock);
11874         /* Now, trying to wait it out if we can */
11875         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11876                 msleep(10);
11877                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11878                         break;
11879         }
11880         /* Forcefully release the outstanding mailbox command if timed out */
11881         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11882                 spin_lock_irq(&phba->hbalock);
11883                 mboxq = phba->sli.mbox_active;
11884                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11885                 __lpfc_mbox_cmpl_put(phba, mboxq);
11886                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11887                 phba->sli.mbox_active = NULL;
11888                 spin_unlock_irq(&phba->hbalock);
11889         }
11890
11891         /* Abort all iocbs associated with the hba */
11892         lpfc_sli_hba_iocb_abort(phba);
11893
11894         /* Wait for completion of device XRI exchange busy */
11895         lpfc_sli4_xri_exchange_busy_wait(phba);
11896
11897         /* per-phba callback de-registration for hotplug event */
11898         lpfc_cpuhp_remove(phba);
11899
11900         /* Disable PCI subsystem interrupt */
11901         lpfc_sli4_disable_intr(phba);
11902
11903         /* Disable SR-IOV if enabled */
11904         if (phba->cfg_sriov_nr_virtfn)
11905                 pci_disable_sriov(pdev);
11906
11907         /* Stop kthread signal shall trigger work_done one more time */
11908         kthread_stop(phba->worker_thread);
11909
11910         /* Disable FW logging to host memory */
11911         lpfc_ras_stop_fwlog(phba);
11912
11913         /* Unset the queues shared with the hardware then release all
11914          * allocated resources.
11915          */
11916         lpfc_sli4_queue_unset(phba);
11917         lpfc_sli4_queue_destroy(phba);
11918
11919         /* Reset SLI4 HBA FCoE function */
11920         lpfc_pci_function_reset(phba);
11921
11922         /* Free RAS DMA memory */
11923         if (phba->ras_fwlog.ras_enabled)
11924                 lpfc_sli4_ras_dma_free(phba);
11925
11926         /* Stop the SLI4 device port */
11927         if (phba->pport)
11928                 phba->pport->work_port_events = 0;
11929 }
11930
11931  /**
11932  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11933  * @phba: Pointer to HBA context object.
11934  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11935  *
11936  * This function is called in the SLI4 code path to read the port's
11937  * sli4 capabilities.
11938  *
11939  * This function may be be called from any context that can block-wait
11940  * for the completion.  The expectation is that this routine is called
11941  * typically from probe_one or from the online routine.
11942  **/
11943 int
11944 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11945 {
11946         int rc;
11947         struct lpfc_mqe *mqe;
11948         struct lpfc_pc_sli4_params *sli4_params;
11949         uint32_t mbox_tmo;
11950
11951         rc = 0;
11952         mqe = &mboxq->u.mqe;
11953
11954         /* Read the port's SLI4 Parameters port capabilities */
11955         lpfc_pc_sli4_params(mboxq);
11956         if (!phba->sli4_hba.intr_enable)
11957                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11958         else {
11959                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11960                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11961         }
11962
11963         if (unlikely(rc))
11964                 return 1;
11965
11966         sli4_params = &phba->sli4_hba.pc_sli4_params;
11967         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11968         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11969         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11970         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11971                                              &mqe->un.sli4_params);
11972         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11973                                              &mqe->un.sli4_params);
11974         sli4_params->proto_types = mqe->un.sli4_params.word3;
11975         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11976         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11977         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11978         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11979         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11980         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11981         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11982         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11983         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11984         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11985         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11986         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11987         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11988         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11989         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11990         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11991         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11992         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11993         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11994         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11995
11996         /* Make sure that sge_supp_len can be handled by the driver */
11997         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11998                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11999
12000         return rc;
12001 }
12002
12003 /**
12004  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
12005  * @phba: Pointer to HBA context object.
12006  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12007  *
12008  * This function is called in the SLI4 code path to read the port's
12009  * sli4 capabilities.
12010  *
12011  * This function may be be called from any context that can block-wait
12012  * for the completion.  The expectation is that this routine is called
12013  * typically from probe_one or from the online routine.
12014  **/
12015 int
12016 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12017 {
12018         int rc;
12019         struct lpfc_mqe *mqe = &mboxq->u.mqe;
12020         struct lpfc_pc_sli4_params *sli4_params;
12021         uint32_t mbox_tmo;
12022         int length;
12023         bool exp_wqcq_pages = true;
12024         struct lpfc_sli4_parameters *mbx_sli4_parameters;
12025
12026         /*
12027          * By default, the driver assumes the SLI4 port requires RPI
12028          * header postings.  The SLI4_PARAM response will correct this
12029          * assumption.
12030          */
12031         phba->sli4_hba.rpi_hdrs_in_use = 1;
12032
12033         /* Read the port's SLI4 Config Parameters */
12034         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
12035                   sizeof(struct lpfc_sli4_cfg_mhdr));
12036         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12037                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
12038                          length, LPFC_SLI4_MBX_EMBED);
12039         if (!phba->sli4_hba.intr_enable)
12040                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12041         else {
12042                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12043                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12044         }
12045         if (unlikely(rc))
12046                 return rc;
12047         sli4_params = &phba->sli4_hba.pc_sli4_params;
12048         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12049         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12050         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12051         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12052         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12053                                              mbx_sli4_parameters);
12054         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12055                                              mbx_sli4_parameters);
12056         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12057                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12058         else
12059                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12060         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12061         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12062         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12063         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12064         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12065         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12066         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12067         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12068         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12069         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12070         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12071         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12072         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12073                                             mbx_sli4_parameters);
12074         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12075         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12076                                            mbx_sli4_parameters);
12077         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12078         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12079
12080         /* Check for Extended Pre-Registered SGL support */
12081         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12082
12083         /* Check for firmware nvme support */
12084         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12085                      bf_get(cfg_xib, mbx_sli4_parameters));
12086
12087         if (rc) {
12088                 /* Save this to indicate the Firmware supports NVME */
12089                 sli4_params->nvme = 1;
12090
12091                 /* Firmware NVME support, check driver FC4 NVME support */
12092                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12093                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12094                                         "6133 Disabling NVME support: "
12095                                         "FC4 type not supported: x%x\n",
12096                                         phba->cfg_enable_fc4_type);
12097                         goto fcponly;
12098                 }
12099         } else {
12100                 /* No firmware NVME support, check driver FC4 NVME support */
12101                 sli4_params->nvme = 0;
12102                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12103                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12104                                         "6101 Disabling NVME support: Not "
12105                                         "supported by firmware (%d %d) x%x\n",
12106                                         bf_get(cfg_nvme, mbx_sli4_parameters),
12107                                         bf_get(cfg_xib, mbx_sli4_parameters),
12108                                         phba->cfg_enable_fc4_type);
12109 fcponly:
12110                         phba->nvme_support = 0;
12111                         phba->nvmet_support = 0;
12112                         phba->cfg_nvmet_mrq = 0;
12113                         phba->cfg_nvme_seg_cnt = 0;
12114
12115                         /* If no FC4 type support, move to just SCSI support */
12116                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12117                                 return -ENODEV;
12118                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12119                 }
12120         }
12121
12122         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12123          * accommodate 512K and 1M IOs in a single nvme buf.
12124          */
12125         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12126                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12127
12128         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12129         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12130             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12131                 phba->cfg_enable_pbde = 0;
12132
12133         /*
12134          * To support Suppress Response feature we must satisfy 3 conditions.
12135          * lpfc_suppress_rsp module parameter must be set (default).
12136          * In SLI4-Parameters Descriptor:
12137          * Extended Inline Buffers (XIB) must be supported.
12138          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12139          * (double negative).
12140          */
12141         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12142             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12143                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12144         else
12145                 phba->cfg_suppress_rsp = 0;
12146
12147         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12148                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12149
12150         /* Make sure that sge_supp_len can be handled by the driver */
12151         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12152                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12153
12154         /*
12155          * Check whether the adapter supports an embedded copy of the
12156          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12157          * to use this option, 128-byte WQEs must be used.
12158          */
12159         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12160                 phba->fcp_embed_io = 1;
12161         else
12162                 phba->fcp_embed_io = 0;
12163
12164         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12165                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12166                         bf_get(cfg_xib, mbx_sli4_parameters),
12167                         phba->cfg_enable_pbde,
12168                         phba->fcp_embed_io, phba->nvme_support,
12169                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12170
12171         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12172             LPFC_SLI_INTF_IF_TYPE_2) &&
12173             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12174                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
12175                 exp_wqcq_pages = false;
12176
12177         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12178             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12179             exp_wqcq_pages &&
12180             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12181                 phba->enab_exp_wqcq_pages = 1;
12182         else
12183                 phba->enab_exp_wqcq_pages = 0;
12184         /*
12185          * Check if the SLI port supports MDS Diagnostics
12186          */
12187         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12188                 phba->mds_diags_support = 1;
12189         else
12190                 phba->mds_diags_support = 0;
12191
12192         /*
12193          * Check if the SLI port supports NSLER
12194          */
12195         if (bf_get(cfg_nsler, mbx_sli4_parameters))
12196                 phba->nsler = 1;
12197         else
12198                 phba->nsler = 0;
12199
12200         return 0;
12201 }
12202
12203 /**
12204  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12205  * @pdev: pointer to PCI device
12206  * @pid: pointer to PCI device identifier
12207  *
12208  * This routine is to be called to attach a device with SLI-3 interface spec
12209  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12210  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12211  * information of the device and driver to see if the driver state that it can
12212  * support this kind of device. If the match is successful, the driver core
12213  * invokes this routine. If this routine determines it can claim the HBA, it
12214  * does all the initialization that it needs to do to handle the HBA properly.
12215  *
12216  * Return code
12217  *      0 - driver can claim the device
12218  *      negative value - driver can not claim the device
12219  **/
12220 static int
12221 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12222 {
12223         struct lpfc_hba   *phba;
12224         struct lpfc_vport *vport = NULL;
12225         struct Scsi_Host  *shost = NULL;
12226         int error;
12227         uint32_t cfg_mode, intr_mode;
12228
12229         /* Allocate memory for HBA structure */
12230         phba = lpfc_hba_alloc(pdev);
12231         if (!phba)
12232                 return -ENOMEM;
12233
12234         /* Perform generic PCI device enabling operation */
12235         error = lpfc_enable_pci_dev(phba);
12236         if (error)
12237                 goto out_free_phba;
12238
12239         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12240         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12241         if (error)
12242                 goto out_disable_pci_dev;
12243
12244         /* Set up SLI-3 specific device PCI memory space */
12245         error = lpfc_sli_pci_mem_setup(phba);
12246         if (error) {
12247                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12248                                 "1402 Failed to set up pci memory space.\n");
12249                 goto out_disable_pci_dev;
12250         }
12251
12252         /* Set up SLI-3 specific device driver resources */
12253         error = lpfc_sli_driver_resource_setup(phba);
12254         if (error) {
12255                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12256                                 "1404 Failed to set up driver resource.\n");
12257                 goto out_unset_pci_mem_s3;
12258         }
12259
12260         /* Initialize and populate the iocb list per host */
12261
12262         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12263         if (error) {
12264                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12265                                 "1405 Failed to initialize iocb list.\n");
12266                 goto out_unset_driver_resource_s3;
12267         }
12268
12269         /* Set up common device driver resources */
12270         error = lpfc_setup_driver_resource_phase2(phba);
12271         if (error) {
12272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12273                                 "1406 Failed to set up driver resource.\n");
12274                 goto out_free_iocb_list;
12275         }
12276
12277         /* Get the default values for Model Name and Description */
12278         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12279
12280         /* Create SCSI host to the physical port */
12281         error = lpfc_create_shost(phba);
12282         if (error) {
12283                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12284                                 "1407 Failed to create scsi host.\n");
12285                 goto out_unset_driver_resource;
12286         }
12287
12288         /* Configure sysfs attributes */
12289         vport = phba->pport;
12290         error = lpfc_alloc_sysfs_attr(vport);
12291         if (error) {
12292                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12293                                 "1476 Failed to allocate sysfs attr\n");
12294                 goto out_destroy_shost;
12295         }
12296
12297         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12298         /* Now, trying to enable interrupt and bring up the device */
12299         cfg_mode = phba->cfg_use_msi;
12300         while (true) {
12301                 /* Put device to a known state before enabling interrupt */
12302                 lpfc_stop_port(phba);
12303                 /* Configure and enable interrupt */
12304                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12305                 if (intr_mode == LPFC_INTR_ERROR) {
12306                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12307                                         "0431 Failed to enable interrupt.\n");
12308                         error = -ENODEV;
12309                         goto out_free_sysfs_attr;
12310                 }
12311                 /* SLI-3 HBA setup */
12312                 if (lpfc_sli_hba_setup(phba)) {
12313                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12314                                         "1477 Failed to set up hba\n");
12315                         error = -ENODEV;
12316                         goto out_remove_device;
12317                 }
12318
12319                 /* Wait 50ms for the interrupts of previous mailbox commands */
12320                 msleep(50);
12321                 /* Check active interrupts on message signaled interrupts */
12322                 if (intr_mode == 0 ||
12323                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12324                         /* Log the current active interrupt mode */
12325                         phba->intr_mode = intr_mode;
12326                         lpfc_log_intr_mode(phba, intr_mode);
12327                         break;
12328                 } else {
12329                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12330                                         "0447 Configure interrupt mode (%d) "
12331                                         "failed active interrupt test.\n",
12332                                         intr_mode);
12333                         /* Disable the current interrupt mode */
12334                         lpfc_sli_disable_intr(phba);
12335                         /* Try next level of interrupt mode */
12336                         cfg_mode = --intr_mode;
12337                 }
12338         }
12339
12340         /* Perform post initialization setup */
12341         lpfc_post_init_setup(phba);
12342
12343         /* Check if there are static vports to be created. */
12344         lpfc_create_static_vport(phba);
12345
12346         return 0;
12347
12348 out_remove_device:
12349         lpfc_unset_hba(phba);
12350 out_free_sysfs_attr:
12351         lpfc_free_sysfs_attr(vport);
12352 out_destroy_shost:
12353         lpfc_destroy_shost(phba);
12354 out_unset_driver_resource:
12355         lpfc_unset_driver_resource_phase2(phba);
12356 out_free_iocb_list:
12357         lpfc_free_iocb_list(phba);
12358 out_unset_driver_resource_s3:
12359         lpfc_sli_driver_resource_unset(phba);
12360 out_unset_pci_mem_s3:
12361         lpfc_sli_pci_mem_unset(phba);
12362 out_disable_pci_dev:
12363         lpfc_disable_pci_dev(phba);
12364         if (shost)
12365                 scsi_host_put(shost);
12366 out_free_phba:
12367         lpfc_hba_free(phba);
12368         return error;
12369 }
12370
12371 /**
12372  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12373  * @pdev: pointer to PCI device
12374  *
12375  * This routine is to be called to disattach a device with SLI-3 interface
12376  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12377  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12378  * device to be removed from the PCI subsystem properly.
12379  **/
12380 static void
12381 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12382 {
12383         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
12384         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12385         struct lpfc_vport **vports;
12386         struct lpfc_hba   *phba = vport->phba;
12387         int i;
12388
12389         spin_lock_irq(&phba->hbalock);
12390         vport->load_flag |= FC_UNLOADING;
12391         spin_unlock_irq(&phba->hbalock);
12392
12393         lpfc_free_sysfs_attr(vport);
12394
12395         /* Release all the vports against this physical port */
12396         vports = lpfc_create_vport_work_array(phba);
12397         if (vports != NULL)
12398                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12399                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12400                                 continue;
12401                         fc_vport_terminate(vports[i]->fc_vport);
12402                 }
12403         lpfc_destroy_vport_work_array(phba, vports);
12404
12405         /* Remove FC host and then SCSI host with the physical port */
12406         fc_remove_host(shost);
12407         scsi_remove_host(shost);
12408
12409         lpfc_cleanup(vport);
12410
12411         /*
12412          * Bring down the SLI Layer. This step disable all interrupts,
12413          * clears the rings, discards all mailbox commands, and resets
12414          * the HBA.
12415          */
12416
12417         /* HBA interrupt will be disabled after this call */
12418         lpfc_sli_hba_down(phba);
12419         /* Stop kthread signal shall trigger work_done one more time */
12420         kthread_stop(phba->worker_thread);
12421         /* Final cleanup of txcmplq and reset the HBA */
12422         lpfc_sli_brdrestart(phba);
12423
12424         kfree(phba->vpi_bmask);
12425         kfree(phba->vpi_ids);
12426
12427         lpfc_stop_hba_timers(phba);
12428         spin_lock_irq(&phba->port_list_lock);
12429         list_del_init(&vport->listentry);
12430         spin_unlock_irq(&phba->port_list_lock);
12431
12432         lpfc_debugfs_terminate(vport);
12433
12434         /* Disable SR-IOV if enabled */
12435         if (phba->cfg_sriov_nr_virtfn)
12436                 pci_disable_sriov(pdev);
12437
12438         /* Disable interrupt */
12439         lpfc_sli_disable_intr(phba);
12440
12441         scsi_host_put(shost);
12442
12443         /*
12444          * Call scsi_free before mem_free since scsi bufs are released to their
12445          * corresponding pools here.
12446          */
12447         lpfc_scsi_free(phba);
12448         lpfc_free_iocb_list(phba);
12449
12450         lpfc_mem_free_all(phba);
12451
12452         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12453                           phba->hbqslimp.virt, phba->hbqslimp.phys);
12454
12455         /* Free resources associated with SLI2 interface */
12456         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12457                           phba->slim2p.virt, phba->slim2p.phys);
12458
12459         /* unmap adapter SLIM and Control Registers */
12460         iounmap(phba->ctrl_regs_memmap_p);
12461         iounmap(phba->slim_memmap_p);
12462
12463         lpfc_hba_free(phba);
12464
12465         pci_release_mem_regions(pdev);
12466         pci_disable_device(pdev);
12467 }
12468
12469 /**
12470  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12471  * @pdev: pointer to PCI device
12472  * @msg: power management message
12473  *
12474  * This routine is to be called from the kernel's PCI subsystem to support
12475  * system Power Management (PM) to device with SLI-3 interface spec. When
12476  * PM invokes this method, it quiesces the device by stopping the driver's
12477  * worker thread for the device, turning off device's interrupt and DMA,
12478  * and bring the device offline. Note that as the driver implements the
12479  * minimum PM requirements to a power-aware driver's PM support for the
12480  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12481  * to the suspend() method call will be treated as SUSPEND and the driver will
12482  * fully reinitialize its device during resume() method call, the driver will
12483  * set device to PCI_D3hot state in PCI config space instead of setting it
12484  * according to the @msg provided by the PM.
12485  *
12486  * Return code
12487  *      0 - driver suspended the device
12488  *      Error otherwise
12489  **/
12490 static int
12491 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12492 {
12493         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12494         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12495
12496         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12497                         "0473 PCI device Power Management suspend.\n");
12498
12499         /* Bring down the device */
12500         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12501         lpfc_offline(phba);
12502         kthread_stop(phba->worker_thread);
12503
12504         /* Disable interrupt from device */
12505         lpfc_sli_disable_intr(phba);
12506
12507         /* Save device state to PCI config space */
12508         pci_save_state(pdev);
12509         pci_set_power_state(pdev, PCI_D3hot);
12510
12511         return 0;
12512 }
12513
12514 /**
12515  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12516  * @pdev: pointer to PCI device
12517  *
12518  * This routine is to be called from the kernel's PCI subsystem to support
12519  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12520  * invokes this method, it restores the device's PCI config space state and
12521  * fully reinitializes the device and brings it online. Note that as the
12522  * driver implements the minimum PM requirements to a power-aware driver's
12523  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12524  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12525  * driver will fully reinitialize its device during resume() method call,
12526  * the device will be set to PCI_D0 directly in PCI config space before
12527  * restoring the state.
12528  *
12529  * Return code
12530  *      0 - driver suspended the device
12531  *      Error otherwise
12532  **/
12533 static int
12534 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12535 {
12536         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12537         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12538         uint32_t intr_mode;
12539         int error;
12540
12541         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12542                         "0452 PCI device Power Management resume.\n");
12543
12544         /* Restore device state from PCI config space */
12545         pci_set_power_state(pdev, PCI_D0);
12546         pci_restore_state(pdev);
12547
12548         /*
12549          * As the new kernel behavior of pci_restore_state() API call clears
12550          * device saved_state flag, need to save the restored state again.
12551          */
12552         pci_save_state(pdev);
12553
12554         if (pdev->is_busmaster)
12555                 pci_set_master(pdev);
12556
12557         /* Startup the kernel thread for this host adapter. */
12558         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12559                                         "lpfc_worker_%d", phba->brd_no);
12560         if (IS_ERR(phba->worker_thread)) {
12561                 error = PTR_ERR(phba->worker_thread);
12562                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12563                                 "0434 PM resume failed to start worker "
12564                                 "thread: error=x%x.\n", error);
12565                 return error;
12566         }
12567
12568         /* Configure and enable interrupt */
12569         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12570         if (intr_mode == LPFC_INTR_ERROR) {
12571                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12572                                 "0430 PM resume Failed to enable interrupt\n");
12573                 return -EIO;
12574         } else
12575                 phba->intr_mode = intr_mode;
12576
12577         /* Restart HBA and bring it online */
12578         lpfc_sli_brdrestart(phba);
12579         lpfc_online(phba);
12580
12581         /* Log the current active interrupt mode */
12582         lpfc_log_intr_mode(phba, phba->intr_mode);
12583
12584         return 0;
12585 }
12586
12587 /**
12588  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12589  * @phba: pointer to lpfc hba data structure.
12590  *
12591  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12592  * aborts all the outstanding SCSI I/Os to the pci device.
12593  **/
12594 static void
12595 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12596 {
12597         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12598                         "2723 PCI channel I/O abort preparing for recovery\n");
12599
12600         /*
12601          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12602          * and let the SCSI mid-layer to retry them to recover.
12603          */
12604         lpfc_sli_abort_fcp_rings(phba);
12605 }
12606
12607 /**
12608  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12609  * @phba: pointer to lpfc hba data structure.
12610  *
12611  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12612  * disables the device interrupt and pci device, and aborts the internal FCP
12613  * pending I/Os.
12614  **/
12615 static void
12616 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12617 {
12618         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12619                         "2710 PCI channel disable preparing for reset\n");
12620
12621         /* Block any management I/Os to the device */
12622         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12623
12624         /* Block all SCSI devices' I/Os on the host */
12625         lpfc_scsi_dev_block(phba);
12626
12627         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12628         lpfc_sli_flush_io_rings(phba);
12629
12630         /* stop all timers */
12631         lpfc_stop_hba_timers(phba);
12632
12633         /* Disable interrupt and pci device */
12634         lpfc_sli_disable_intr(phba);
12635         pci_disable_device(phba->pcidev);
12636 }
12637
12638 /**
12639  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12640  * @phba: pointer to lpfc hba data structure.
12641  *
12642  * This routine is called to prepare the SLI3 device for PCI slot permanently
12643  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12644  * pending I/Os.
12645  **/
12646 static void
12647 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12648 {
12649         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12650                         "2711 PCI channel permanent disable for failure\n");
12651         /* Block all SCSI devices' I/Os on the host */
12652         lpfc_scsi_dev_block(phba);
12653
12654         /* stop all timers */
12655         lpfc_stop_hba_timers(phba);
12656
12657         /* Clean up all driver's outstanding SCSI I/Os */
12658         lpfc_sli_flush_io_rings(phba);
12659 }
12660
12661 /**
12662  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12663  * @pdev: pointer to PCI device.
12664  * @state: the current PCI connection state.
12665  *
12666  * This routine is called from the PCI subsystem for I/O error handling to
12667  * device with SLI-3 interface spec. This function is called by the PCI
12668  * subsystem after a PCI bus error affecting this device has been detected.
12669  * When this function is invoked, it will need to stop all the I/Os and
12670  * interrupt(s) to the device. Once that is done, it will return
12671  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12672  * as desired.
12673  *
12674  * Return codes
12675  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12676  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12677  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12678  **/
12679 static pci_ers_result_t
12680 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12681 {
12682         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12683         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12684
12685         switch (state) {
12686         case pci_channel_io_normal:
12687                 /* Non-fatal error, prepare for recovery */
12688                 lpfc_sli_prep_dev_for_recover(phba);
12689                 return PCI_ERS_RESULT_CAN_RECOVER;
12690         case pci_channel_io_frozen:
12691                 /* Fatal error, prepare for slot reset */
12692                 lpfc_sli_prep_dev_for_reset(phba);
12693                 return PCI_ERS_RESULT_NEED_RESET;
12694         case pci_channel_io_perm_failure:
12695                 /* Permanent failure, prepare for device down */
12696                 lpfc_sli_prep_dev_for_perm_failure(phba);
12697                 return PCI_ERS_RESULT_DISCONNECT;
12698         default:
12699                 /* Unknown state, prepare and request slot reset */
12700                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12701                                 "0472 Unknown PCI error state: x%x\n", state);
12702                 lpfc_sli_prep_dev_for_reset(phba);
12703                 return PCI_ERS_RESULT_NEED_RESET;
12704         }
12705 }
12706
12707 /**
12708  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12709  * @pdev: pointer to PCI device.
12710  *
12711  * This routine is called from the PCI subsystem for error handling to
12712  * device with SLI-3 interface spec. This is called after PCI bus has been
12713  * reset to restart the PCI card from scratch, as if from a cold-boot.
12714  * During the PCI subsystem error recovery, after driver returns
12715  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12716  * recovery and then call this routine before calling the .resume method
12717  * to recover the device. This function will initialize the HBA device,
12718  * enable the interrupt, but it will just put the HBA to offline state
12719  * without passing any I/O traffic.
12720  *
12721  * Return codes
12722  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12723  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12724  */
12725 static pci_ers_result_t
12726 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12727 {
12728         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12729         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12730         struct lpfc_sli *psli = &phba->sli;
12731         uint32_t intr_mode;
12732
12733         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12734         if (pci_enable_device_mem(pdev)) {
12735                 printk(KERN_ERR "lpfc: Cannot re-enable "
12736                         "PCI device after reset.\n");
12737                 return PCI_ERS_RESULT_DISCONNECT;
12738         }
12739
12740         pci_restore_state(pdev);
12741
12742         /*
12743          * As the new kernel behavior of pci_restore_state() API call clears
12744          * device saved_state flag, need to save the restored state again.
12745          */
12746         pci_save_state(pdev);
12747
12748         if (pdev->is_busmaster)
12749                 pci_set_master(pdev);
12750
12751         spin_lock_irq(&phba->hbalock);
12752         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12753         spin_unlock_irq(&phba->hbalock);
12754
12755         /* Configure and enable interrupt */
12756         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12757         if (intr_mode == LPFC_INTR_ERROR) {
12758                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12759                                 "0427 Cannot re-enable interrupt after "
12760                                 "slot reset.\n");
12761                 return PCI_ERS_RESULT_DISCONNECT;
12762         } else
12763                 phba->intr_mode = intr_mode;
12764
12765         /* Take device offline, it will perform cleanup */
12766         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12767         lpfc_offline(phba);
12768         lpfc_sli_brdrestart(phba);
12769
12770         /* Log the current active interrupt mode */
12771         lpfc_log_intr_mode(phba, phba->intr_mode);
12772
12773         return PCI_ERS_RESULT_RECOVERED;
12774 }
12775
12776 /**
12777  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12778  * @pdev: pointer to PCI device
12779  *
12780  * This routine is called from the PCI subsystem for error handling to device
12781  * with SLI-3 interface spec. It is called when kernel error recovery tells
12782  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12783  * error recovery. After this call, traffic can start to flow from this device
12784  * again.
12785  */
12786 static void
12787 lpfc_io_resume_s3(struct pci_dev *pdev)
12788 {
12789         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12790         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12791
12792         /* Bring device online, it will be no-op for non-fatal error resume */
12793         lpfc_online(phba);
12794 }
12795
12796 /**
12797  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12798  * @phba: pointer to lpfc hba data structure.
12799  *
12800  * returns the number of ELS/CT IOCBs to reserve
12801  **/
12802 int
12803 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12804 {
12805         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12806
12807         if (phba->sli_rev == LPFC_SLI_REV4) {
12808                 if (max_xri <= 100)
12809                         return 10;
12810                 else if (max_xri <= 256)
12811                         return 25;
12812                 else if (max_xri <= 512)
12813                         return 50;
12814                 else if (max_xri <= 1024)
12815                         return 100;
12816                 else if (max_xri <= 1536)
12817                         return 150;
12818                 else if (max_xri <= 2048)
12819                         return 200;
12820                 else
12821                         return 250;
12822         } else
12823                 return 0;
12824 }
12825
12826 /**
12827  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12828  * @phba: pointer to lpfc hba data structure.
12829  *
12830  * returns the number of ELS/CT + NVMET IOCBs to reserve
12831  **/
12832 int
12833 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12834 {
12835         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12836
12837         if (phba->nvmet_support)
12838                 max_xri += LPFC_NVMET_BUF_POST;
12839         return max_xri;
12840 }
12841
12842
12843 static int
12844 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12845         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12846         const struct firmware *fw)
12847 {
12848         int rc;
12849
12850         /* Three cases:  (1) FW was not supported on the detected adapter.
12851          * (2) FW update has been locked out administratively.
12852          * (3) Some other error during FW update.
12853          * In each case, an unmaskable message is written to the console
12854          * for admin diagnosis.
12855          */
12856         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12857             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12858              magic_number != MAGIC_NUMBER_G6) ||
12859             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12860              magic_number != MAGIC_NUMBER_G7)) {
12861                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12862                                 "3030 This firmware version is not supported on"
12863                                 " this HBA model. Device:%x Magic:%x Type:%x "
12864                                 "ID:%x Size %d %zd\n",
12865                                 phba->pcidev->device, magic_number, ftype, fid,
12866                                 fsize, fw->size);
12867                 rc = -EINVAL;
12868         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12870                                 "3021 Firmware downloads have been prohibited "
12871                                 "by a system configuration setting on "
12872                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12873                                 "%zd\n",
12874                                 phba->pcidev->device, magic_number, ftype, fid,
12875                                 fsize, fw->size);
12876                 rc = -EACCES;
12877         } else {
12878                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12879                                 "3022 FW Download failed. Add Status x%x "
12880                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12881                                 "%zd\n",
12882                                 offset, phba->pcidev->device, magic_number,
12883                                 ftype, fid, fsize, fw->size);
12884                 rc = -EIO;
12885         }
12886         return rc;
12887 }
12888
12889 /**
12890  * lpfc_write_firmware - attempt to write a firmware image to the port
12891  * @fw: pointer to firmware image returned from request_firmware.
12892  * @context: pointer to firmware image returned from request_firmware.
12893  * @ret: return value this routine provides to the caller.
12894  *
12895  **/
12896 static void
12897 lpfc_write_firmware(const struct firmware *fw, void *context)
12898 {
12899         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12900         char fwrev[FW_REV_STR_SIZE];
12901         struct lpfc_grp_hdr *image;
12902         struct list_head dma_buffer_list;
12903         int i, rc = 0;
12904         struct lpfc_dmabuf *dmabuf, *next;
12905         uint32_t offset = 0, temp_offset = 0;
12906         uint32_t magic_number, ftype, fid, fsize;
12907
12908         /* It can be null in no-wait mode, sanity check */
12909         if (!fw) {
12910                 rc = -ENXIO;
12911                 goto out;
12912         }
12913         image = (struct lpfc_grp_hdr *)fw->data;
12914
12915         magic_number = be32_to_cpu(image->magic_number);
12916         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12917         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12918         fsize = be32_to_cpu(image->size);
12919
12920         INIT_LIST_HEAD(&dma_buffer_list);
12921         lpfc_decode_firmware_rev(phba, fwrev, 1);
12922         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12923                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12924                                 "3023 Updating Firmware, Current Version:%s "
12925                                 "New Version:%s\n",
12926                                 fwrev, image->revision);
12927                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12928                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12929                                          GFP_KERNEL);
12930                         if (!dmabuf) {
12931                                 rc = -ENOMEM;
12932                                 goto release_out;
12933                         }
12934                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12935                                                           SLI4_PAGE_SIZE,
12936                                                           &dmabuf->phys,
12937                                                           GFP_KERNEL);
12938                         if (!dmabuf->virt) {
12939                                 kfree(dmabuf);
12940                                 rc = -ENOMEM;
12941                                 goto release_out;
12942                         }
12943                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12944                 }
12945                 while (offset < fw->size) {
12946                         temp_offset = offset;
12947                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12948                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12949                                         memcpy(dmabuf->virt,
12950                                                fw->data + temp_offset,
12951                                                fw->size - temp_offset);
12952                                         temp_offset = fw->size;
12953                                         break;
12954                                 }
12955                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12956                                        SLI4_PAGE_SIZE);
12957                                 temp_offset += SLI4_PAGE_SIZE;
12958                         }
12959                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12960                                     (fw->size - offset), &offset);
12961                         if (rc) {
12962                                 rc = lpfc_log_write_firmware_error(phba, offset,
12963                                                                    magic_number,
12964                                                                    ftype,
12965                                                                    fid,
12966                                                                    fsize,
12967                                                                    fw);
12968                                 goto release_out;
12969                         }
12970                 }
12971                 rc = offset;
12972         } else
12973                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12974                                 "3029 Skipped Firmware update, Current "
12975                                 "Version:%s New Version:%s\n",
12976                                 fwrev, image->revision);
12977
12978 release_out:
12979         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12980                 list_del(&dmabuf->list);
12981                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12982                                   dmabuf->virt, dmabuf->phys);
12983                 kfree(dmabuf);
12984         }
12985         release_firmware(fw);
12986 out:
12987         if (rc < 0)
12988                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12989                                 "3062 Firmware update error, status %d.\n", rc);
12990         else
12991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12992                                 "3024 Firmware update success: size %d.\n", rc);
12993 }
12994
12995 /**
12996  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12997  * @phba: pointer to lpfc hba data structure.
12998  *
12999  * This routine is called to perform Linux generic firmware upgrade on device
13000  * that supports such feature.
13001  **/
13002 int
13003 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
13004 {
13005         uint8_t file_name[ELX_MODEL_NAME_SIZE];
13006         int ret;
13007         const struct firmware *fw;
13008
13009         /* Only supported on SLI4 interface type 2 for now */
13010         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
13011             LPFC_SLI_INTF_IF_TYPE_2)
13012                 return -EPERM;
13013
13014         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
13015
13016         if (fw_upgrade == INT_FW_UPGRADE) {
13017                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
13018                                         file_name, &phba->pcidev->dev,
13019                                         GFP_KERNEL, (void *)phba,
13020                                         lpfc_write_firmware);
13021         } else if (fw_upgrade == RUN_FW_UPGRADE) {
13022                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
13023                 if (!ret)
13024                         lpfc_write_firmware(fw, (void *)phba);
13025         } else {
13026                 ret = -EINVAL;
13027         }
13028
13029         return ret;
13030 }
13031
13032 /**
13033  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
13034  * @pdev: pointer to PCI device
13035  * @pid: pointer to PCI device identifier
13036  *
13037  * This routine is called from the kernel's PCI subsystem to device with
13038  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13039  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13040  * information of the device and driver to see if the driver state that it
13041  * can support this kind of device. If the match is successful, the driver
13042  * core invokes this routine. If this routine determines it can claim the HBA,
13043  * it does all the initialization that it needs to do to handle the HBA
13044  * properly.
13045  *
13046  * Return code
13047  *      0 - driver can claim the device
13048  *      negative value - driver can not claim the device
13049  **/
13050 static int
13051 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13052 {
13053         struct lpfc_hba   *phba;
13054         struct lpfc_vport *vport = NULL;
13055         struct Scsi_Host  *shost = NULL;
13056         int error;
13057         uint32_t cfg_mode, intr_mode;
13058
13059         /* Allocate memory for HBA structure */
13060         phba = lpfc_hba_alloc(pdev);
13061         if (!phba)
13062                 return -ENOMEM;
13063
13064         /* Perform generic PCI device enabling operation */
13065         error = lpfc_enable_pci_dev(phba);
13066         if (error)
13067                 goto out_free_phba;
13068
13069         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13070         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13071         if (error)
13072                 goto out_disable_pci_dev;
13073
13074         /* Set up SLI-4 specific device PCI memory space */
13075         error = lpfc_sli4_pci_mem_setup(phba);
13076         if (error) {
13077                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13078                                 "1410 Failed to set up pci memory space.\n");
13079                 goto out_disable_pci_dev;
13080         }
13081
13082         /* Set up SLI-4 Specific device driver resources */
13083         error = lpfc_sli4_driver_resource_setup(phba);
13084         if (error) {
13085                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13086                                 "1412 Failed to set up driver resource.\n");
13087                 goto out_unset_pci_mem_s4;
13088         }
13089
13090         INIT_LIST_HEAD(&phba->active_rrq_list);
13091         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13092
13093         /* Set up common device driver resources */
13094         error = lpfc_setup_driver_resource_phase2(phba);
13095         if (error) {
13096                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13097                                 "1414 Failed to set up driver resource.\n");
13098                 goto out_unset_driver_resource_s4;
13099         }
13100
13101         /* Get the default values for Model Name and Description */
13102         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13103
13104         /* Now, trying to enable interrupt and bring up the device */
13105         cfg_mode = phba->cfg_use_msi;
13106
13107         /* Put device to a known state before enabling interrupt */
13108         phba->pport = NULL;
13109         lpfc_stop_port(phba);
13110
13111         /* Init cpu_map array */
13112         lpfc_cpu_map_array_init(phba);
13113
13114         /* Init hba_eq_hdl array */
13115         lpfc_hba_eq_hdl_array_init(phba);
13116
13117         /* Configure and enable interrupt */
13118         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13119         if (intr_mode == LPFC_INTR_ERROR) {
13120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13121                                 "0426 Failed to enable interrupt.\n");
13122                 error = -ENODEV;
13123                 goto out_unset_driver_resource;
13124         }
13125         /* Default to single EQ for non-MSI-X */
13126         if (phba->intr_type != MSIX) {
13127                 phba->cfg_irq_chann = 1;
13128                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13129                         if (phba->nvmet_support)
13130                                 phba->cfg_nvmet_mrq = 1;
13131                 }
13132         }
13133         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13134
13135         /* Create SCSI host to the physical port */
13136         error = lpfc_create_shost(phba);
13137         if (error) {
13138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13139                                 "1415 Failed to create scsi host.\n");
13140                 goto out_disable_intr;
13141         }
13142         vport = phba->pport;
13143         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13144
13145         /* Configure sysfs attributes */
13146         error = lpfc_alloc_sysfs_attr(vport);
13147         if (error) {
13148                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13149                                 "1416 Failed to allocate sysfs attr\n");
13150                 goto out_destroy_shost;
13151         }
13152
13153         /* Set up SLI-4 HBA */
13154         if (lpfc_sli4_hba_setup(phba)) {
13155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13156                                 "1421 Failed to set up hba\n");
13157                 error = -ENODEV;
13158                 goto out_free_sysfs_attr;
13159         }
13160
13161         /* Log the current active interrupt mode */
13162         phba->intr_mode = intr_mode;
13163         lpfc_log_intr_mode(phba, intr_mode);
13164
13165         /* Perform post initialization setup */
13166         lpfc_post_init_setup(phba);
13167
13168         /* NVME support in FW earlier in the driver load corrects the
13169          * FC4 type making a check for nvme_support unnecessary.
13170          */
13171         if (phba->nvmet_support == 0) {
13172                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13173                         /* Create NVME binding with nvme_fc_transport. This
13174                          * ensures the vport is initialized.  If the localport
13175                          * create fails, it should not unload the driver to
13176                          * support field issues.
13177                          */
13178                         error = lpfc_nvme_create_localport(vport);
13179                         if (error) {
13180                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13181                                                 "6004 NVME registration "
13182                                                 "failed, error x%x\n",
13183                                                 error);
13184                         }
13185                 }
13186         }
13187
13188         /* check for firmware upgrade or downgrade */
13189         if (phba->cfg_request_firmware_upgrade)
13190                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13191
13192         /* Check if there are static vports to be created. */
13193         lpfc_create_static_vport(phba);
13194
13195         /* Enable RAS FW log support */
13196         lpfc_sli4_ras_setup(phba);
13197
13198         INIT_LIST_HEAD(&phba->poll_list);
13199         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
13200         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13201
13202         return 0;
13203
13204 out_free_sysfs_attr:
13205         lpfc_free_sysfs_attr(vport);
13206 out_destroy_shost:
13207         lpfc_destroy_shost(phba);
13208 out_disable_intr:
13209         lpfc_sli4_disable_intr(phba);
13210 out_unset_driver_resource:
13211         lpfc_unset_driver_resource_phase2(phba);
13212 out_unset_driver_resource_s4:
13213         lpfc_sli4_driver_resource_unset(phba);
13214 out_unset_pci_mem_s4:
13215         lpfc_sli4_pci_mem_unset(phba);
13216 out_disable_pci_dev:
13217         lpfc_disable_pci_dev(phba);
13218         if (shost)
13219                 scsi_host_put(shost);
13220 out_free_phba:
13221         lpfc_hba_free(phba);
13222         return error;
13223 }
13224
13225 /**
13226  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13227  * @pdev: pointer to PCI device
13228  *
13229  * This routine is called from the kernel's PCI subsystem to device with
13230  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13231  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13232  * device to be removed from the PCI subsystem properly.
13233  **/
13234 static void
13235 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13236 {
13237         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13238         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13239         struct lpfc_vport **vports;
13240         struct lpfc_hba *phba = vport->phba;
13241         int i;
13242
13243         /* Mark the device unloading flag */
13244         spin_lock_irq(&phba->hbalock);
13245         vport->load_flag |= FC_UNLOADING;
13246         spin_unlock_irq(&phba->hbalock);
13247
13248         /* Free the HBA sysfs attributes */
13249         lpfc_free_sysfs_attr(vport);
13250
13251         /* Release all the vports against this physical port */
13252         vports = lpfc_create_vport_work_array(phba);
13253         if (vports != NULL)
13254                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13255                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13256                                 continue;
13257                         fc_vport_terminate(vports[i]->fc_vport);
13258                 }
13259         lpfc_destroy_vport_work_array(phba, vports);
13260
13261         /* Remove FC host and then SCSI host with the physical port */
13262         fc_remove_host(shost);
13263         scsi_remove_host(shost);
13264
13265         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
13266          * localports are destroyed after to cleanup all transport memory.
13267          */
13268         lpfc_cleanup(vport);
13269         lpfc_nvmet_destroy_targetport(phba);
13270         lpfc_nvme_destroy_localport(vport);
13271
13272         /* De-allocate multi-XRI pools */
13273         if (phba->cfg_xri_rebalancing)
13274                 lpfc_destroy_multixri_pools(phba);
13275
13276         /*
13277          * Bring down the SLI Layer. This step disables all interrupts,
13278          * clears the rings, discards all mailbox commands, and resets
13279          * the HBA FCoE function.
13280          */
13281         lpfc_debugfs_terminate(vport);
13282
13283         lpfc_stop_hba_timers(phba);
13284         spin_lock_irq(&phba->port_list_lock);
13285         list_del_init(&vport->listentry);
13286         spin_unlock_irq(&phba->port_list_lock);
13287
13288         /* Perform scsi free before driver resource_unset since scsi
13289          * buffers are released to their corresponding pools here.
13290          */
13291         lpfc_io_free(phba);
13292         lpfc_free_iocb_list(phba);
13293         lpfc_sli4_hba_unset(phba);
13294
13295         lpfc_unset_driver_resource_phase2(phba);
13296         lpfc_sli4_driver_resource_unset(phba);
13297
13298         /* Unmap adapter Control and Doorbell registers */
13299         lpfc_sli4_pci_mem_unset(phba);
13300
13301         /* Release PCI resources and disable device's PCI function */
13302         scsi_host_put(shost);
13303         lpfc_disable_pci_dev(phba);
13304
13305         /* Finally, free the driver's device data structure */
13306         lpfc_hba_free(phba);
13307
13308         return;
13309 }
13310
13311 /**
13312  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13313  * @pdev: pointer to PCI device
13314  * @msg: power management message
13315  *
13316  * This routine is called from the kernel's PCI subsystem to support system
13317  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13318  * this method, it quiesces the device by stopping the driver's worker
13319  * thread for the device, turning off device's interrupt and DMA, and bring
13320  * the device offline. Note that as the driver implements the minimum PM
13321  * requirements to a power-aware driver's PM support for suspend/resume -- all
13322  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13323  * method call will be treated as SUSPEND and the driver will fully
13324  * reinitialize its device during resume() method call, the driver will set
13325  * device to PCI_D3hot state in PCI config space instead of setting it
13326  * according to the @msg provided by the PM.
13327  *
13328  * Return code
13329  *      0 - driver suspended the device
13330  *      Error otherwise
13331  **/
13332 static int
13333 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13334 {
13335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13337
13338         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13339                         "2843 PCI device Power Management suspend.\n");
13340
13341         /* Bring down the device */
13342         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13343         lpfc_offline(phba);
13344         kthread_stop(phba->worker_thread);
13345
13346         /* Disable interrupt from device */
13347         lpfc_sli4_disable_intr(phba);
13348         lpfc_sli4_queue_destroy(phba);
13349
13350         /* Save device state to PCI config space */
13351         pci_save_state(pdev);
13352         pci_set_power_state(pdev, PCI_D3hot);
13353
13354         return 0;
13355 }
13356
13357 /**
13358  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13359  * @pdev: pointer to PCI device
13360  *
13361  * This routine is called from the kernel's PCI subsystem to support system
13362  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13363  * this method, it restores the device's PCI config space state and fully
13364  * reinitializes the device and brings it online. Note that as the driver
13365  * implements the minimum PM requirements to a power-aware driver's PM for
13366  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13367  * to the suspend() method call will be treated as SUSPEND and the driver
13368  * will fully reinitialize its device during resume() method call, the device
13369  * will be set to PCI_D0 directly in PCI config space before restoring the
13370  * state.
13371  *
13372  * Return code
13373  *      0 - driver suspended the device
13374  *      Error otherwise
13375  **/
13376 static int
13377 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13378 {
13379         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13380         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13381         uint32_t intr_mode;
13382         int error;
13383
13384         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13385                         "0292 PCI device Power Management resume.\n");
13386
13387         /* Restore device state from PCI config space */
13388         pci_set_power_state(pdev, PCI_D0);
13389         pci_restore_state(pdev);
13390
13391         /*
13392          * As the new kernel behavior of pci_restore_state() API call clears
13393          * device saved_state flag, need to save the restored state again.
13394          */
13395         pci_save_state(pdev);
13396
13397         if (pdev->is_busmaster)
13398                 pci_set_master(pdev);
13399
13400          /* Startup the kernel thread for this host adapter. */
13401         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13402                                         "lpfc_worker_%d", phba->brd_no);
13403         if (IS_ERR(phba->worker_thread)) {
13404                 error = PTR_ERR(phba->worker_thread);
13405                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13406                                 "0293 PM resume failed to start worker "
13407                                 "thread: error=x%x.\n", error);
13408                 return error;
13409         }
13410
13411         /* Configure and enable interrupt */
13412         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13413         if (intr_mode == LPFC_INTR_ERROR) {
13414                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13415                                 "0294 PM resume Failed to enable interrupt\n");
13416                 return -EIO;
13417         } else
13418                 phba->intr_mode = intr_mode;
13419
13420         /* Restart HBA and bring it online */
13421         lpfc_sli_brdrestart(phba);
13422         lpfc_online(phba);
13423
13424         /* Log the current active interrupt mode */
13425         lpfc_log_intr_mode(phba, phba->intr_mode);
13426
13427         return 0;
13428 }
13429
13430 /**
13431  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13432  * @phba: pointer to lpfc hba data structure.
13433  *
13434  * This routine is called to prepare the SLI4 device for PCI slot recover. It
13435  * aborts all the outstanding SCSI I/Os to the pci device.
13436  **/
13437 static void
13438 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13439 {
13440         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13441                         "2828 PCI channel I/O abort preparing for recovery\n");
13442         /*
13443          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13444          * and let the SCSI mid-layer to retry them to recover.
13445          */
13446         lpfc_sli_abort_fcp_rings(phba);
13447 }
13448
13449 /**
13450  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13451  * @phba: pointer to lpfc hba data structure.
13452  *
13453  * This routine is called to prepare the SLI4 device for PCI slot reset. It
13454  * disables the device interrupt and pci device, and aborts the internal FCP
13455  * pending I/Os.
13456  **/
13457 static void
13458 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13459 {
13460         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13461                         "2826 PCI channel disable preparing for reset\n");
13462
13463         /* Block any management I/Os to the device */
13464         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13465
13466         /* Block all SCSI devices' I/Os on the host */
13467         lpfc_scsi_dev_block(phba);
13468
13469         /* Flush all driver's outstanding I/Os as we are to reset */
13470         lpfc_sli_flush_io_rings(phba);
13471
13472         /* stop all timers */
13473         lpfc_stop_hba_timers(phba);
13474
13475         /* Disable interrupt and pci device */
13476         lpfc_sli4_disable_intr(phba);
13477         lpfc_sli4_queue_destroy(phba);
13478         pci_disable_device(phba->pcidev);
13479 }
13480
13481 /**
13482  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13483  * @phba: pointer to lpfc hba data structure.
13484  *
13485  * This routine is called to prepare the SLI4 device for PCI slot permanently
13486  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13487  * pending I/Os.
13488  **/
13489 static void
13490 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13491 {
13492         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13493                         "2827 PCI channel permanent disable for failure\n");
13494
13495         /* Block all SCSI devices' I/Os on the host */
13496         lpfc_scsi_dev_block(phba);
13497
13498         /* stop all timers */
13499         lpfc_stop_hba_timers(phba);
13500
13501         /* Clean up all driver's outstanding I/Os */
13502         lpfc_sli_flush_io_rings(phba);
13503 }
13504
13505 /**
13506  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13507  * @pdev: pointer to PCI device.
13508  * @state: the current PCI connection state.
13509  *
13510  * This routine is called from the PCI subsystem for error handling to device
13511  * with SLI-4 interface spec. This function is called by the PCI subsystem
13512  * after a PCI bus error affecting this device has been detected. When this
13513  * function is invoked, it will need to stop all the I/Os and interrupt(s)
13514  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13515  * for the PCI subsystem to perform proper recovery as desired.
13516  *
13517  * Return codes
13518  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13519  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13520  **/
13521 static pci_ers_result_t
13522 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13523 {
13524         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13525         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13526
13527         switch (state) {
13528         case pci_channel_io_normal:
13529                 /* Non-fatal error, prepare for recovery */
13530                 lpfc_sli4_prep_dev_for_recover(phba);
13531                 return PCI_ERS_RESULT_CAN_RECOVER;
13532         case pci_channel_io_frozen:
13533                 /* Fatal error, prepare for slot reset */
13534                 lpfc_sli4_prep_dev_for_reset(phba);
13535                 return PCI_ERS_RESULT_NEED_RESET;
13536         case pci_channel_io_perm_failure:
13537                 /* Permanent failure, prepare for device down */
13538                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13539                 return PCI_ERS_RESULT_DISCONNECT;
13540         default:
13541                 /* Unknown state, prepare and request slot reset */
13542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13543                                 "2825 Unknown PCI error state: x%x\n", state);
13544                 lpfc_sli4_prep_dev_for_reset(phba);
13545                 return PCI_ERS_RESULT_NEED_RESET;
13546         }
13547 }
13548
13549 /**
13550  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13551  * @pdev: pointer to PCI device.
13552  *
13553  * This routine is called from the PCI subsystem for error handling to device
13554  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13555  * restart the PCI card from scratch, as if from a cold-boot. During the
13556  * PCI subsystem error recovery, after the driver returns
13557  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13558  * recovery and then call this routine before calling the .resume method to
13559  * recover the device. This function will initialize the HBA device, enable
13560  * the interrupt, but it will just put the HBA to offline state without
13561  * passing any I/O traffic.
13562  *
13563  * Return codes
13564  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13565  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13566  */
13567 static pci_ers_result_t
13568 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13569 {
13570         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13571         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13572         struct lpfc_sli *psli = &phba->sli;
13573         uint32_t intr_mode;
13574
13575         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13576         if (pci_enable_device_mem(pdev)) {
13577                 printk(KERN_ERR "lpfc: Cannot re-enable "
13578                         "PCI device after reset.\n");
13579                 return PCI_ERS_RESULT_DISCONNECT;
13580         }
13581
13582         pci_restore_state(pdev);
13583
13584         /*
13585          * As the new kernel behavior of pci_restore_state() API call clears
13586          * device saved_state flag, need to save the restored state again.
13587          */
13588         pci_save_state(pdev);
13589
13590         if (pdev->is_busmaster)
13591                 pci_set_master(pdev);
13592
13593         spin_lock_irq(&phba->hbalock);
13594         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13595         spin_unlock_irq(&phba->hbalock);
13596
13597         /* Configure and enable interrupt */
13598         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13599         if (intr_mode == LPFC_INTR_ERROR) {
13600                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13601                                 "2824 Cannot re-enable interrupt after "
13602                                 "slot reset.\n");
13603                 return PCI_ERS_RESULT_DISCONNECT;
13604         } else
13605                 phba->intr_mode = intr_mode;
13606
13607         /* Log the current active interrupt mode */
13608         lpfc_log_intr_mode(phba, phba->intr_mode);
13609
13610         return PCI_ERS_RESULT_RECOVERED;
13611 }
13612
13613 /**
13614  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13615  * @pdev: pointer to PCI device
13616  *
13617  * This routine is called from the PCI subsystem for error handling to device
13618  * with SLI-4 interface spec. It is called when kernel error recovery tells
13619  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13620  * error recovery. After this call, traffic can start to flow from this device
13621  * again.
13622  **/
13623 static void
13624 lpfc_io_resume_s4(struct pci_dev *pdev)
13625 {
13626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13628
13629         /*
13630          * In case of slot reset, as function reset is performed through
13631          * mailbox command which needs DMA to be enabled, this operation
13632          * has to be moved to the io resume phase. Taking device offline
13633          * will perform the necessary cleanup.
13634          */
13635         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13636                 /* Perform device reset */
13637                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13638                 lpfc_offline(phba);
13639                 lpfc_sli_brdrestart(phba);
13640                 /* Bring the device back online */
13641                 lpfc_online(phba);
13642         }
13643 }
13644
13645 /**
13646  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13647  * @pdev: pointer to PCI device
13648  * @pid: pointer to PCI device identifier
13649  *
13650  * This routine is to be registered to the kernel's PCI subsystem. When an
13651  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13652  * at PCI device-specific information of the device and driver to see if the
13653  * driver state that it can support this kind of device. If the match is
13654  * successful, the driver core invokes this routine. This routine dispatches
13655  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13656  * do all the initialization that it needs to do to handle the HBA device
13657  * properly.
13658  *
13659  * Return code
13660  *      0 - driver can claim the device
13661  *      negative value - driver can not claim the device
13662  **/
13663 static int
13664 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13665 {
13666         int rc;
13667         struct lpfc_sli_intf intf;
13668
13669         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13670                 return -ENODEV;
13671
13672         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13673             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13674                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13675         else
13676                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13677
13678         return rc;
13679 }
13680
13681 /**
13682  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13683  * @pdev: pointer to PCI device
13684  *
13685  * This routine is to be registered to the kernel's PCI subsystem. When an
13686  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13687  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13688  * remove routine, which will perform all the necessary cleanup for the
13689  * device to be removed from the PCI subsystem properly.
13690  **/
13691 static void
13692 lpfc_pci_remove_one(struct pci_dev *pdev)
13693 {
13694         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13695         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13696
13697         switch (phba->pci_dev_grp) {
13698         case LPFC_PCI_DEV_LP:
13699                 lpfc_pci_remove_one_s3(pdev);
13700                 break;
13701         case LPFC_PCI_DEV_OC:
13702                 lpfc_pci_remove_one_s4(pdev);
13703                 break;
13704         default:
13705                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13706                                 "1424 Invalid PCI device group: 0x%x\n",
13707                                 phba->pci_dev_grp);
13708                 break;
13709         }
13710         return;
13711 }
13712
13713 /**
13714  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13715  * @pdev: pointer to PCI device
13716  * @msg: power management message
13717  *
13718  * This routine is to be registered to the kernel's PCI subsystem to support
13719  * system Power Management (PM). When PM invokes this method, it dispatches
13720  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13721  * suspend the device.
13722  *
13723  * Return code
13724  *      0 - driver suspended the device
13725  *      Error otherwise
13726  **/
13727 static int
13728 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13729 {
13730         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13731         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13732         int rc = -ENODEV;
13733
13734         switch (phba->pci_dev_grp) {
13735         case LPFC_PCI_DEV_LP:
13736                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13737                 break;
13738         case LPFC_PCI_DEV_OC:
13739                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13740                 break;
13741         default:
13742                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13743                                 "1425 Invalid PCI device group: 0x%x\n",
13744                                 phba->pci_dev_grp);
13745                 break;
13746         }
13747         return rc;
13748 }
13749
13750 /**
13751  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13752  * @pdev: pointer to PCI device
13753  *
13754  * This routine is to be registered to the kernel's PCI subsystem to support
13755  * system Power Management (PM). When PM invokes this method, it dispatches
13756  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13757  * resume the device.
13758  *
13759  * Return code
13760  *      0 - driver suspended the device
13761  *      Error otherwise
13762  **/
13763 static int
13764 lpfc_pci_resume_one(struct pci_dev *pdev)
13765 {
13766         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13767         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13768         int rc = -ENODEV;
13769
13770         switch (phba->pci_dev_grp) {
13771         case LPFC_PCI_DEV_LP:
13772                 rc = lpfc_pci_resume_one_s3(pdev);
13773                 break;
13774         case LPFC_PCI_DEV_OC:
13775                 rc = lpfc_pci_resume_one_s4(pdev);
13776                 break;
13777         default:
13778                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13779                                 "1426 Invalid PCI device group: 0x%x\n",
13780                                 phba->pci_dev_grp);
13781                 break;
13782         }
13783         return rc;
13784 }
13785
13786 /**
13787  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13788  * @pdev: pointer to PCI device.
13789  * @state: the current PCI connection state.
13790  *
13791  * This routine is registered to the PCI subsystem for error handling. This
13792  * function is called by the PCI subsystem after a PCI bus error affecting
13793  * this device has been detected. When this routine is invoked, it dispatches
13794  * the action to the proper SLI-3 or SLI-4 device error detected handling
13795  * routine, which will perform the proper error detected operation.
13796  *
13797  * Return codes
13798  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13799  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13800  **/
13801 static pci_ers_result_t
13802 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13803 {
13804         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13805         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13806         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13807
13808         switch (phba->pci_dev_grp) {
13809         case LPFC_PCI_DEV_LP:
13810                 rc = lpfc_io_error_detected_s3(pdev, state);
13811                 break;
13812         case LPFC_PCI_DEV_OC:
13813                 rc = lpfc_io_error_detected_s4(pdev, state);
13814                 break;
13815         default:
13816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13817                                 "1427 Invalid PCI device group: 0x%x\n",
13818                                 phba->pci_dev_grp);
13819                 break;
13820         }
13821         return rc;
13822 }
13823
13824 /**
13825  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13826  * @pdev: pointer to PCI device.
13827  *
13828  * This routine is registered to the PCI subsystem for error handling. This
13829  * function is called after PCI bus has been reset to restart the PCI card
13830  * from scratch, as if from a cold-boot. When this routine is invoked, it
13831  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13832  * routine, which will perform the proper device reset.
13833  *
13834  * Return codes
13835  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13836  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13837  **/
13838 static pci_ers_result_t
13839 lpfc_io_slot_reset(struct pci_dev *pdev)
13840 {
13841         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13842         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13843         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13844
13845         switch (phba->pci_dev_grp) {
13846         case LPFC_PCI_DEV_LP:
13847                 rc = lpfc_io_slot_reset_s3(pdev);
13848                 break;
13849         case LPFC_PCI_DEV_OC:
13850                 rc = lpfc_io_slot_reset_s4(pdev);
13851                 break;
13852         default:
13853                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13854                                 "1428 Invalid PCI device group: 0x%x\n",
13855                                 phba->pci_dev_grp);
13856                 break;
13857         }
13858         return rc;
13859 }
13860
13861 /**
13862  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13863  * @pdev: pointer to PCI device
13864  *
13865  * This routine is registered to the PCI subsystem for error handling. It
13866  * is called when kernel error recovery tells the lpfc driver that it is
13867  * OK to resume normal PCI operation after PCI bus error recovery. When
13868  * this routine is invoked, it dispatches the action to the proper SLI-3
13869  * or SLI-4 device io_resume routine, which will resume the device operation.
13870  **/
13871 static void
13872 lpfc_io_resume(struct pci_dev *pdev)
13873 {
13874         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13875         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13876
13877         switch (phba->pci_dev_grp) {
13878         case LPFC_PCI_DEV_LP:
13879                 lpfc_io_resume_s3(pdev);
13880                 break;
13881         case LPFC_PCI_DEV_OC:
13882                 lpfc_io_resume_s4(pdev);
13883                 break;
13884         default:
13885                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13886                                 "1429 Invalid PCI device group: 0x%x\n",
13887                                 phba->pci_dev_grp);
13888                 break;
13889         }
13890         return;
13891 }
13892
13893 /**
13894  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13895  * @phba: pointer to lpfc hba data structure.
13896  *
13897  * This routine checks to see if OAS is supported for this adapter. If
13898  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13899  * the enable oas flag is cleared and the pool created for OAS device data
13900  * is destroyed.
13901  *
13902  **/
13903 static void
13904 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13905 {
13906
13907         if (!phba->cfg_EnableXLane)
13908                 return;
13909
13910         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13911                 phba->cfg_fof = 1;
13912         } else {
13913                 phba->cfg_fof = 0;
13914                 mempool_destroy(phba->device_data_mem_pool);
13915                 phba->device_data_mem_pool = NULL;
13916         }
13917
13918         return;
13919 }
13920
13921 /**
13922  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13923  * @phba: pointer to lpfc hba data structure.
13924  *
13925  * This routine checks to see if RAS is supported by the adapter. Check the
13926  * function through which RAS support enablement is to be done.
13927  **/
13928 void
13929 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13930 {
13931         switch (phba->pcidev->device) {
13932         case PCI_DEVICE_ID_LANCER_G6_FC:
13933         case PCI_DEVICE_ID_LANCER_G7_FC:
13934                 phba->ras_fwlog.ras_hwsupport = true;
13935                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13936                     phba->cfg_ras_fwlog_buffsize)
13937                         phba->ras_fwlog.ras_enabled = true;
13938                 else
13939                         phba->ras_fwlog.ras_enabled = false;
13940                 break;
13941         default:
13942                 phba->ras_fwlog.ras_hwsupport = false;
13943         }
13944 }
13945
13946
13947 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13948
13949 static const struct pci_error_handlers lpfc_err_handler = {
13950         .error_detected = lpfc_io_error_detected,
13951         .slot_reset = lpfc_io_slot_reset,
13952         .resume = lpfc_io_resume,
13953 };
13954
13955 static struct pci_driver lpfc_driver = {
13956         .name           = LPFC_DRIVER_NAME,
13957         .id_table       = lpfc_id_table,
13958         .probe          = lpfc_pci_probe_one,
13959         .remove         = lpfc_pci_remove_one,
13960         .shutdown       = lpfc_pci_remove_one,
13961         .suspend        = lpfc_pci_suspend_one,
13962         .resume         = lpfc_pci_resume_one,
13963         .err_handler    = &lpfc_err_handler,
13964 };
13965
13966 static const struct file_operations lpfc_mgmt_fop = {
13967         .owner = THIS_MODULE,
13968 };
13969
13970 static struct miscdevice lpfc_mgmt_dev = {
13971         .minor = MISC_DYNAMIC_MINOR,
13972         .name = "lpfcmgmt",
13973         .fops = &lpfc_mgmt_fop,
13974 };
13975
13976 /**
13977  * lpfc_init - lpfc module initialization routine
13978  *
13979  * This routine is to be invoked when the lpfc module is loaded into the
13980  * kernel. The special kernel macro module_init() is used to indicate the
13981  * role of this routine to the kernel as lpfc module entry point.
13982  *
13983  * Return codes
13984  *   0 - successful
13985  *   -ENOMEM - FC attach transport failed
13986  *   all others - failed
13987  */
13988 static int __init
13989 lpfc_init(void)
13990 {
13991         int error = 0;
13992
13993         printk(LPFC_MODULE_DESC "\n");
13994         printk(LPFC_COPYRIGHT "\n");
13995
13996         error = misc_register(&lpfc_mgmt_dev);
13997         if (error)
13998                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13999                         "misc_register returned with status %d", error);
14000
14001         lpfc_transport_functions.vport_create = lpfc_vport_create;
14002         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
14003         lpfc_transport_template =
14004                                 fc_attach_transport(&lpfc_transport_functions);
14005         if (lpfc_transport_template == NULL)
14006                 return -ENOMEM;
14007         lpfc_vport_transport_template =
14008                 fc_attach_transport(&lpfc_vport_transport_functions);
14009         if (lpfc_vport_transport_template == NULL) {
14010                 fc_release_transport(lpfc_transport_template);
14011                 return -ENOMEM;
14012         }
14013         lpfc_nvme_cmd_template();
14014         lpfc_nvmet_cmd_template();
14015
14016         /* Initialize in case vector mapping is needed */
14017         lpfc_present_cpu = num_present_cpus();
14018
14019         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
14020                                         "lpfc/sli4:online",
14021                                         lpfc_cpu_online, lpfc_cpu_offline);
14022         if (error < 0)
14023                 goto cpuhp_failure;
14024         lpfc_cpuhp_state = error;
14025
14026         error = pci_register_driver(&lpfc_driver);
14027         if (error)
14028                 goto unwind;
14029
14030         return error;
14031
14032 unwind:
14033         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14034 cpuhp_failure:
14035         fc_release_transport(lpfc_transport_template);
14036         fc_release_transport(lpfc_vport_transport_template);
14037
14038         return error;
14039 }
14040
14041 /**
14042  * lpfc_exit - lpfc module removal routine
14043  *
14044  * This routine is invoked when the lpfc module is removed from the kernel.
14045  * The special kernel macro module_exit() is used to indicate the role of
14046  * this routine to the kernel as lpfc module exit point.
14047  */
14048 static void __exit
14049 lpfc_exit(void)
14050 {
14051         misc_deregister(&lpfc_mgmt_dev);
14052         pci_unregister_driver(&lpfc_driver);
14053         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14054         fc_release_transport(lpfc_transport_template);
14055         fc_release_transport(lpfc_vport_transport_template);
14056         idr_destroy(&lpfc_hba_index);
14057 }
14058
14059 module_init(lpfc_init);
14060 module_exit(lpfc_exit);
14061 MODULE_LICENSE("GPL");
14062 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14063 MODULE_AUTHOR("Broadcom");
14064 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);