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 "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71
  72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  79 static int lpfc_setup_endian_order(struct lpfc_hba *);
  80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  83 static void lpfc_init_sgl_list(struct lpfc_hba *);
  84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  85 static void lpfc_free_active_sgl(struct lpfc_hba *);
  86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  96
  97 static struct scsi_transport_template *lpfc_transport_template = NULL;
  98 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  99 static DEFINE_IDR(lpfc_hba_index);
 100 #define LPFC_NVMET_BUF_POST 254
 101
 102 /**
 103  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 104  * @phba: pointer to lpfc hba data structure.
 105  *
 106  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 107  * mailbox command. It retrieves the revision information from the HBA and
 108  * collects the Vital Product Data (VPD) about the HBA for preparing the
 109  * configuration of the HBA.
 110  *
 111  * Return codes:
 112  *   0 - success.
 113  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 114  *   Any other value - indicates an error.
 115  **/
 116 int
 117 lpfc_config_port_prep(struct lpfc_hba *phba)
 118 {
 119         lpfc_vpd_t *vp = &phba->vpd;
 120         int i = 0, rc;
 121         LPFC_MBOXQ_t *pmb;
 122         MAILBOX_t *mb;
 123         char *lpfc_vpd_data = NULL;
 124         uint16_t offset = 0;
 125         static char licensed[56] =
 126                     "key unlock for use with gnu public licensed code only\0";
 127         static int init_key = 1;
 128
 129         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 130         if (!pmb) {
 131                 phba->link_state = LPFC_HBA_ERROR;
 132                 return -ENOMEM;
 133         }
 134
 135         mb = &pmb->u.mb;
 136         phba->link_state = LPFC_INIT_MBX_CMDS;
 137
 138         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 139                 if (init_key) {
 140                         uint32_t *ptext = (uint32_t *) licensed;
 141
 142                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 143                                 *ptext = cpu_to_be32(*ptext);
 144                         init_key = 0;
 145                 }
 146
 147                 lpfc_read_nv(phba, pmb);
 148                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 149                         sizeof (mb->un.varRDnvp.rsvd3));
 150                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 151                          sizeof (licensed));
 152
 153                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154
 155                 if (rc != MBX_SUCCESS) {
 156                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 157                                         "0324 Config Port initialization "
 158                                         "error, mbxCmd x%x READ_NVPARM, "
 159                                         "mbxStatus x%x\n",
 160                                         mb->mbxCommand, mb->mbxStatus);
 161                         mempool_free(pmb, phba->mbox_mem_pool);
 162                         return -ERESTART;
 163                 }
 164                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 165                        sizeof(phba->wwnn));
 166                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 167                        sizeof(phba->wwpn));
 168         }
 169
 170         /*
 171          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 172          * which was already set in lpfc_get_cfgparam()
 173          */
 174         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 175
 176         /* Setup and issue mailbox READ REV command */
 177         lpfc_read_rev(phba, pmb);
 178         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 179         if (rc != MBX_SUCCESS) {
 180                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 181                                 "0439 Adapter failed to init, mbxCmd x%x "
 182                                 "READ_REV, mbxStatus x%x\n",
 183                                 mb->mbxCommand, mb->mbxStatus);
 184                 mempool_free( pmb, phba->mbox_mem_pool);
 185                 return -ERESTART;
 186         }
 187
 188
 189         /*
 190          * The value of rr must be 1 since the driver set the cv field to 1.
 191          * This setting requires the FW to set all revision fields.
 192          */
 193         if (mb->un.varRdRev.rr == 0) {
 194                 vp->rev.rBit = 0;
 195                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 196                                 "0440 Adapter failed to init, READ_REV has "
 197                                 "missing revision information.\n");
 198                 mempool_free(pmb, phba->mbox_mem_pool);
 199                 return -ERESTART;
 200         }
 201
 202         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 203                 mempool_free(pmb, phba->mbox_mem_pool);
 204                 return -EINVAL;
 205         }
 206
 207         /* Save information as VPD data */
 208         vp->rev.rBit = 1;
 209         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 210         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 211         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 212         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 213         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 214         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 215         vp->rev.smRev = mb->un.varRdRev.smRev;
 216         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 217         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 218         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 219         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 220         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 221         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 222         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 223         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 224
 225         /* If the sli feature level is less then 9, we must
 226          * tear down all RPIs and VPIs on link down if NPIV
 227          * is enabled.
 228          */
 229         if (vp->rev.feaLevelHigh < 9)
 230                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 231
 232         if (lpfc_is_LC_HBA(phba->pcidev->device))
 233                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 234                                                 sizeof (phba->RandomData));
 235
 236         /* Get adapter VPD information */
 237         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 238         if (!lpfc_vpd_data)
 239                 goto out_free_mbox;
 240         do {
 241                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 242                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 243
 244                 if (rc != MBX_SUCCESS) {
 245                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 246                                         "0441 VPD not present on adapter, "
 247                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 248                                         mb->mbxCommand, mb->mbxStatus);
 249                         mb->un.varDmp.word_cnt = 0;
 250                 }
 251                 /* dump mem may return a zero when finished or we got a
 252                  * mailbox error, either way we are done.
 253                  */
 254                 if (mb->un.varDmp.word_cnt == 0)
 255                         break;
 256
 257                 i =  mb->un.varDmp.word_cnt * sizeof(uint32_t);
 258                 if (offset + i >  DMP_VPD_SIZE)
 259                         i =  DMP_VPD_SIZE - offset;
 260                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 261                                       lpfc_vpd_data  + offset, i);
 262                 offset += i;
 263         } while (offset < DMP_VPD_SIZE);
 264
 265         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 266
 267         kfree(lpfc_vpd_data);
 268 out_free_mbox:
 269         mempool_free(pmb, phba->mbox_mem_pool);
 270         return 0;
 271 }
 272
 273 /**
 274  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 275  * @phba: pointer to lpfc hba data structure.
 276  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 277  *
 278  * This is the completion handler for driver's configuring asynchronous event
 279  * mailbox command to the device. If the mailbox command returns successfully,
 280  * it will set internal async event support flag to 1; otherwise, it will
 281  * set internal async event support flag to 0.
 282  **/
 283 static void
 284 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 285 {
 286         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 287                 phba->temp_sensor_support = 1;
 288         else
 289                 phba->temp_sensor_support = 0;
 290         mempool_free(pmboxq, phba->mbox_mem_pool);
 291         return;
 292 }
 293
 294 /**
 295  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 296  * @phba: pointer to lpfc hba data structure.
 297  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 298  *
 299  * This is the completion handler for dump mailbox command for getting
 300  * wake up parameters. When this command complete, the response contain
 301  * Option rom version of the HBA. This function translate the version number
 302  * into a human readable string and store it in OptionROMVersion.
 303  **/
 304 static void
 305 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 306 {
 307         struct prog_id *prg;
 308         uint32_t prog_id_word;
 309         char dist = ' ';
 310         /* character array used for decoding dist type. */
 311         char dist_char[] = "nabx";
 312
 313         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 314                 mempool_free(pmboxq, phba->mbox_mem_pool);
 315                 return;
 316         }
 317
 318         prg = (struct prog_id *) &prog_id_word;
 319
 320         /* word 7 contain option rom version */
 321         prog_id_word = pmboxq->u.mb.un.varWords[7];
 322
 323         /* Decode the Option rom version word to a readable string */
 324         if (prg->dist < 4)
 325                 dist = dist_char[prg->dist];
 326
 327         if ((prg->dist == 3) && (prg->num == 0))
 328                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 329                         prg->ver, prg->rev, prg->lev);
 330         else
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 332                         prg->ver, prg->rev, prg->lev,
 333                         dist, prg->num);
 334         mempool_free(pmboxq, phba->mbox_mem_pool);
 335         return;
 336 }
 337
 338 /**
 339  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 340  *      cfg_soft_wwnn, cfg_soft_wwpn
 341  * @vport: pointer to lpfc vport data structure.
 342  *
 343  *
 344  * Return codes
 345  *   None.
 346  **/
 347 void
 348 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 349 {
 350         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 351         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 352
 353         /* If the soft name exists then update it using the service params */
 354         if (vport->phba->cfg_soft_wwnn)
 355                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 356                            vport->fc_sparam.nodeName.u.wwn);
 357         if (vport->phba->cfg_soft_wwpn)
 358                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 359                            vport->fc_sparam.portName.u.wwn);
 360
 361         /*
 362          * If the name is empty or there exists a soft name
 363          * then copy the service params name, otherwise use the fc name
 364          */
 365         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 366                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 367                         sizeof(struct lpfc_name));
 368         else
 369                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 370                         sizeof(struct lpfc_name));
 371
 372         /*
 373          * If the port name has changed, then set the Param changes flag
 374          * to unreg the login
 375          */
 376         if (vport->fc_portname.u.wwn[0] != 0 &&
 377                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 378                         sizeof(struct lpfc_name)))
 379                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 380
 381         if (vport->fc_portname.u.wwn[0] == 0 ||
 382             vport->phba->cfg_soft_wwpn ||
 383             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 384             vport->vport_flag & FAWWPN_SET) {
 385                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 386                         sizeof(struct lpfc_name));
 387                 vport->vport_flag &= ~FAWWPN_SET;
 388                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 389                         vport->vport_flag |= FAWWPN_SET;
 390         }
 391         else
 392                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 393                         sizeof(struct lpfc_name));
 394 }
 395
 396 /**
 397  * lpfc_config_port_post - Perform lpfc initialization after config port
 398  * @phba: pointer to lpfc hba data structure.
 399  *
 400  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 401  * command call. It performs all internal resource and state setups on the
 402  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 403  * ELS ring timers, etc.
 404  *
 405  * Return codes
 406  *   0 - success.
 407  *   Any other value - error.
 408  **/
 409 int
 410 lpfc_config_port_post(struct lpfc_hba *phba)
 411 {
 412         struct lpfc_vport *vport = phba->pport;
 413         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 414         LPFC_MBOXQ_t *pmb;
 415         MAILBOX_t *mb;
 416         struct lpfc_dmabuf *mp;
 417         struct lpfc_sli *psli = &phba->sli;
 418         uint32_t status, timeout;
 419         int i, j;
 420         int rc;
 421
 422         spin_lock_irq(&phba->hbalock);
 423         /*
 424          * If the Config port completed correctly the HBA is not
 425          * over heated any more.
 426          */
 427         if (phba->over_temp_state == HBA_OVER_TEMP)
 428                 phba->over_temp_state = HBA_NORMAL_TEMP;
 429         spin_unlock_irq(&phba->hbalock);
 430
 431         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 432         if (!pmb) {
 433                 phba->link_state = LPFC_HBA_ERROR;
 434                 return -ENOMEM;
 435         }
 436         mb = &pmb->u.mb;
 437
 438         /* Get login parameters for NID.  */
 439         rc = lpfc_read_sparam(phba, pmb, 0);
 440         if (rc) {
 441                 mempool_free(pmb, phba->mbox_mem_pool);
 442                 return -ENOMEM;
 443         }
 444
 445         pmb->vport = vport;
 446         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 447                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 448                                 "0448 Adapter failed init, mbxCmd x%x "
 449                                 "READ_SPARM mbxStatus x%x\n",
 450                                 mb->mbxCommand, mb->mbxStatus);
 451                 phba->link_state = LPFC_HBA_ERROR;
 452                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 453                 mempool_free(pmb, phba->mbox_mem_pool);
 454                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 455                 kfree(mp);
 456                 return -EIO;
 457         }
 458
 459         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 460
 461         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 462         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 463         kfree(mp);
 464         pmb->ctx_buf = NULL;
 465         lpfc_update_vport_wwn(vport);
 466
 467         /* Update the fc_host data structures with new wwn. */
 468         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 469         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 470         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 471
 472         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 473         /* This should be consolidated into parse_vpd ? - mr */
 474         if (phba->SerialNumber[0] == 0) {
 475                 uint8_t *outptr;
 476
 477                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 478                 for (i = 0; i < 12; i++) {
 479                         status = *outptr++;
 480                         j = ((status & 0xf0) >> 4);
 481                         if (j <= 9)
 482                                 phba->SerialNumber[i] =
 483                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 484                         else
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 487                         i++;
 488                         j = (status & 0xf);
 489                         if (j <= 9)
 490                                 phba->SerialNumber[i] =
 491                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 492                         else
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 495                 }
 496         }
 497
 498         lpfc_read_config(phba, pmb);
 499         pmb->vport = vport;
 500         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 501                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 502                                 "0453 Adapter failed to init, mbxCmd x%x "
 503                                 "READ_CONFIG, mbxStatus x%x\n",
 504                                 mb->mbxCommand, mb->mbxStatus);
 505                 phba->link_state = LPFC_HBA_ERROR;
 506                 mempool_free( pmb, phba->mbox_mem_pool);
 507                 return -EIO;
 508         }
 509
 510         /* Check if the port is disabled */
 511         lpfc_sli_read_link_ste(phba);
 512
 513         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 514         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 515                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 516                                 "3359 HBA queue depth changed from %d to %d\n",
 517                                 phba->cfg_hba_queue_depth,
 518                                 mb->un.varRdConfig.max_xri);
 519                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 520         }
 521
 522         phba->lmt = mb->un.varRdConfig.lmt;
 523
 524         /* Get the default values for Model Name and Description */
 525         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 526
 527         phba->link_state = LPFC_LINK_DOWN;
 528
 529         /* Only process IOCBs on ELS ring till hba_state is READY */
 530         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 531                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 532         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534
 535         /* Post receive buffers for desired rings */
 536         if (phba->sli_rev != 3)
 537                 lpfc_post_rcv_buf(phba);
 538
 539         /*
 540          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 541          */
 542         if (phba->intr_type == MSIX) {
 543                 rc = lpfc_config_msi(phba, pmb);
 544                 if (rc) {
 545                         mempool_free(pmb, phba->mbox_mem_pool);
 546                         return -EIO;
 547                 }
 548                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 549                 if (rc != MBX_SUCCESS) {
 550                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 551                                         "0352 Config MSI mailbox command "
 552                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 553                                         pmb->u.mb.mbxCommand,
 554                                         pmb->u.mb.mbxStatus);
 555                         mempool_free(pmb, phba->mbox_mem_pool);
 556                         return -EIO;
 557                 }
 558         }
 559
 560         spin_lock_irq(&phba->hbalock);
 561         /* Initialize ERATT handling flag */
 562         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 563
 564         /* Enable appropriate host interrupts */
 565         if (lpfc_readl(phba->HCregaddr, &status)) {
 566                 spin_unlock_irq(&phba->hbalock);
 567                 return -EIO;
 568         }
 569         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 570         if (psli->num_rings > 0)
 571                 status |= HC_R0INT_ENA;
 572         if (psli->num_rings > 1)
 573                 status |= HC_R1INT_ENA;
 574         if (psli->num_rings > 2)
 575                 status |= HC_R2INT_ENA;
 576         if (psli->num_rings > 3)
 577                 status |= HC_R3INT_ENA;
 578
 579         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 580             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 581                 status &= ~(HC_R0INT_ENA);
 582
 583         writel(status, phba->HCregaddr);
 584         readl(phba->HCregaddr); /* flush */
 585         spin_unlock_irq(&phba->hbalock);
 586
 587         /* Set up ring-0 (ELS) timer */
 588         timeout = phba->fc_ratov * 2;
 589         mod_timer(&vport->els_tmofunc,
 590                   jiffies + msecs_to_jiffies(1000 * timeout));
 591         /* Set up heart beat (HB) timer */
 592         mod_timer(&phba->hb_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 594         phba->hb_outstanding = 0;
 595         phba->last_completion_time = jiffies;
 596         /* Set up error attention (ERATT) polling timer */
 597         mod_timer(&phba->eratt_poll,
 598                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 599
 600         if (phba->hba_flag & LINK_DISABLED) {
 601                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 602                                 "2598 Adapter Link is disabled.\n");
 603                 lpfc_down_link(phba, pmb);
 604                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 605                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 607                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 608                                         "2599 Adapter failed to issue DOWN_LINK"
 609                                         " mbox command rc 0x%x\n", rc);
 610
 611                         mempool_free(pmb, phba->mbox_mem_pool);
 612                         return -EIO;
 613                 }
 614         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 617                 if (rc)
 618                         return rc;
 619         }
 620         /* MBOX buffer will be freed in mbox compl */
 621         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 622         if (!pmb) {
 623                 phba->link_state = LPFC_HBA_ERROR;
 624                 return -ENOMEM;
 625         }
 626
 627         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 628         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 629         pmb->vport = phba->pport;
 630         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 631
 632         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 633                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 634                                 "0456 Adapter failed to issue "
 635                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 636                                 rc);
 637                 mempool_free(pmb, phba->mbox_mem_pool);
 638         }
 639
 640         /* Get Option rom version */
 641         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 642         if (!pmb) {
 643                 phba->link_state = LPFC_HBA_ERROR;
 644                 return -ENOMEM;
 645         }
 646
 647         lpfc_dump_wakeup_param(phba, pmb);
 648         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 649         pmb->vport = phba->pport;
 650         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 651
 652         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 653                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 654                                 "0435 Adapter failed "
 655                                 "to get Option ROM version status x%x\n", rc);
 656                 mempool_free(pmb, phba->mbox_mem_pool);
 657         }
 658
 659         return 0;
 660 }
 661
 662 /**
 663  * lpfc_hba_init_link - Initialize the FC link
 664  * @phba: pointer to lpfc hba data structure.
 665  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 666  *
 667  * This routine will issue the INIT_LINK mailbox command call.
 668  * It is available to other drivers through the lpfc_hba data
 669  * structure for use as a delayed link up mechanism with the
 670  * module parameter lpfc_suppress_link_up.
 671  *
 672  * Return code
 673  *              0 - success
 674  *              Any other value - error
 675  **/
 676 static int
 677 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 678 {
 679         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 680 }
 681
 682 /**
 683  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 684  * @phba: pointer to lpfc hba data structure.
 685  * @fc_topology: desired fc topology.
 686  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 687  *
 688  * This routine will issue the INIT_LINK mailbox command call.
 689  * It is available to other drivers through the lpfc_hba data
 690  * structure for use as a delayed link up mechanism with the
 691  * module parameter lpfc_suppress_link_up.
 692  *
 693  * Return code
 694  *              0 - success
 695  *              Any other value - error
 696  **/
 697 int
 698 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 699                                uint32_t flag)
 700 {
 701         struct lpfc_vport *vport = phba->pport;
 702         LPFC_MBOXQ_t *pmb;
 703         MAILBOX_t *mb;
 704         int rc;
 705
 706         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 707         if (!pmb) {
 708                 phba->link_state = LPFC_HBA_ERROR;
 709                 return -ENOMEM;
 710         }
 711         mb = &pmb->u.mb;
 712         pmb->vport = vport;
 713
 714         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 715             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 716              !(phba->lmt & LMT_1Gb)) ||
 717             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 718              !(phba->lmt & LMT_2Gb)) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 720              !(phba->lmt & LMT_4Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 722              !(phba->lmt & LMT_8Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 724              !(phba->lmt & LMT_10Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 726              !(phba->lmt & LMT_16Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 728              !(phba->lmt & LMT_32Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 730              !(phba->lmt & LMT_64Gb))) {
 731                 /* Reset link speed to auto */
 732                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 733                                 "1302 Invalid speed for this board:%d "
 734                                 "Reset link speed to auto.\n",
 735                                 phba->cfg_link_speed);
 736                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 737         }
 738         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 739         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 740         if (phba->sli_rev < LPFC_SLI_REV4)
 741                 lpfc_set_loopback_flag(phba);
 742         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 743         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 744                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 745                                 "0498 Adapter failed to init, mbxCmd x%x "
 746                                 "INIT_LINK, mbxStatus x%x\n",
 747                                 mb->mbxCommand, mb->mbxStatus);
 748                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 749                         /* Clear all interrupt enable conditions */
 750                         writel(0, phba->HCregaddr);
 751                         readl(phba->HCregaddr); /* flush */
 752                         /* Clear all pending interrupts */
 753                         writel(0xffffffff, phba->HAregaddr);
 754                         readl(phba->HAregaddr); /* flush */
 755                 }
 756                 phba->link_state = LPFC_HBA_ERROR;
 757                 if (rc != MBX_BUSY || flag == MBX_POLL)
 758                         mempool_free(pmb, phba->mbox_mem_pool);
 759                 return -EIO;
 760         }
 761         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 762         if (flag == MBX_POLL)
 763                 mempool_free(pmb, phba->mbox_mem_pool);
 764
 765         return 0;
 766 }
 767
 768 /**
 769  * lpfc_hba_down_link - this routine downs the FC link
 770  * @phba: pointer to lpfc hba data structure.
 771  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 772  *
 773  * This routine will issue the DOWN_LINK mailbox command call.
 774  * It is available to other drivers through the lpfc_hba data
 775  * structure for use to stop the link.
 776  *
 777  * Return code
 778  *              0 - success
 779  *              Any other value - error
 780  **/
 781 static int
 782 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 783 {
 784         LPFC_MBOXQ_t *pmb;
 785         int rc;
 786
 787         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 788         if (!pmb) {
 789                 phba->link_state = LPFC_HBA_ERROR;
 790                 return -ENOMEM;
 791         }
 792
 793         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 794                         "0491 Adapter Link is disabled.\n");
 795         lpfc_down_link(phba, pmb);
 796         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 797         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 798         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 799                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 800                                 "2522 Adapter failed to issue DOWN_LINK"
 801                                 " mbox command rc 0x%x\n", rc);
 802
 803                 mempool_free(pmb, phba->mbox_mem_pool);
 804                 return -EIO;
 805         }
 806         if (flag == MBX_POLL)
 807                 mempool_free(pmb, phba->mbox_mem_pool);
 808
 809         return 0;
 810 }
 811
 812 /**
 813  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 814  * @phba: pointer to lpfc HBA data structure.
 815  *
 816  * This routine will do LPFC uninitialization before the HBA is reset when
 817  * bringing down the SLI Layer.
 818  *
 819  * Return codes
 820  *   0 - success.
 821  *   Any other value - error.
 822  **/
 823 int
 824 lpfc_hba_down_prep(struct lpfc_hba *phba)
 825 {
 826         struct lpfc_vport **vports;
 827         int i;
 828
 829         if (phba->sli_rev <= LPFC_SLI_REV3) {
 830                 /* Disable interrupts */
 831                 writel(0, phba->HCregaddr);
 832                 readl(phba->HCregaddr); /* flush */
 833         }
 834
 835         if (phba->pport->load_flag & FC_UNLOADING)
 836                 lpfc_cleanup_discovery_resources(phba->pport);
 837         else {
 838                 vports = lpfc_create_vport_work_array(phba);
 839                 if (vports != NULL)
 840                         for (i = 0; i <= phba->max_vports &&
 841                                 vports[i] != NULL; i++)
 842                                 lpfc_cleanup_discovery_resources(vports[i]);
 843                 lpfc_destroy_vport_work_array(phba, vports);
 844         }
 845         return 0;
 846 }
 847
 848 /**
 849  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 850  * rspiocb which got deferred
 851  *
 852  * @phba: pointer to lpfc HBA data structure.
 853  *
 854  * This routine will cleanup completed slow path events after HBA is reset
 855  * when bringing down the SLI Layer.
 856  *
 857  *
 858  * Return codes
 859  *   void.
 860  **/
 861 static void
 862 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 863 {
 864         struct lpfc_iocbq *rspiocbq;
 865         struct hbq_dmabuf *dmabuf;
 866         struct lpfc_cq_event *cq_event;
 867
 868         spin_lock_irq(&phba->hbalock);
 869         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 870         spin_unlock_irq(&phba->hbalock);
 871
 872         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 873                 /* Get the response iocb from the head of work queue */
 874                 spin_lock_irq(&phba->hbalock);
 875                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 876                                  cq_event, struct lpfc_cq_event, list);
 877                 spin_unlock_irq(&phba->hbalock);
 878
 879                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 880                 case CQE_CODE_COMPL_WQE:
 881                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 882                                                  cq_event);
 883                         lpfc_sli_release_iocbq(phba, rspiocbq);
 884                         break;
 885                 case CQE_CODE_RECEIVE:
 886                 case CQE_CODE_RECEIVE_V1:
 887                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 888                                               cq_event);
 889                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 890                 }
 891         }
 892 }
 893
 894 /**
 895  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 896  * @phba: pointer to lpfc HBA data structure.
 897  *
 898  * This routine will cleanup posted ELS buffers after the HBA is reset
 899  * when bringing down the SLI Layer.
 900  *
 901  *
 902  * Return codes
 903  *   void.
 904  **/
 905 static void
 906 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 907 {
 908         struct lpfc_sli *psli = &phba->sli;
 909         struct lpfc_sli_ring *pring;
 910         struct lpfc_dmabuf *mp, *next_mp;
 911         LIST_HEAD(buflist);
 912         int count;
 913
 914         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 915                 lpfc_sli_hbqbuf_free_all(phba);
 916         else {
 917                 /* Cleanup preposted buffers on the ELS ring */
 918                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 919                 spin_lock_irq(&phba->hbalock);
 920                 list_splice_init(&pring->postbufq, &buflist);
 921                 spin_unlock_irq(&phba->hbalock);
 922
 923                 count = 0;
 924                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 925                         list_del(&mp->list);
 926                         count++;
 927                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 928                         kfree(mp);
 929                 }
 930
 931                 spin_lock_irq(&phba->hbalock);
 932                 pring->postbufq_cnt -= count;
 933                 spin_unlock_irq(&phba->hbalock);
 934         }
 935 }
 936
 937 /**
 938  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 939  * @phba: pointer to lpfc HBA data structure.
 940  *
 941  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 942  * down the SLI Layer.
 943  *
 944  * Return codes
 945  *   void
 946  **/
 947 static void
 948 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 949 {
 950         struct lpfc_sli *psli = &phba->sli;
 951         struct lpfc_queue *qp = NULL;
 952         struct lpfc_sli_ring *pring;
 953         LIST_HEAD(completions);
 954         int i;
 955         struct lpfc_iocbq *piocb, *next_iocb;
 956
 957         if (phba->sli_rev != LPFC_SLI_REV4) {
 958                 for (i = 0; i < psli->num_rings; i++) {
 959                         pring = &psli->sli3_ring[i];
 960                         spin_lock_irq(&phba->hbalock);
 961                         /* At this point in time the HBA is either reset or DOA
 962                          * Nothing should be on txcmplq as it will
 963                          * NEVER complete.
 964                          */
 965                         list_splice_init(&pring->txcmplq, &completions);
 966                         pring->txcmplq_cnt = 0;
 967                         spin_unlock_irq(&phba->hbalock);
 968
 969                         lpfc_sli_abort_iocb_ring(phba, pring);
 970                 }
 971                 /* Cancel all the IOCBs from the completions list */
 972                 lpfc_sli_cancel_iocbs(phba, &completions,
 973                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 974                 return;
 975         }
 976         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 977                 pring = qp->pring;
 978                 if (!pring)
 979                         continue;
 980                 spin_lock_irq(&pring->ring_lock);
 981                 list_for_each_entry_safe(piocb, next_iocb,
 982                                          &pring->txcmplq, list)
 983                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 984                 list_splice_init(&pring->txcmplq, &completions);
 985                 pring->txcmplq_cnt = 0;
 986                 spin_unlock_irq(&pring->ring_lock);
 987                 lpfc_sli_abort_iocb_ring(phba, pring);
 988         }
 989         /* Cancel all the IOCBs from the completions list */
 990         lpfc_sli_cancel_iocbs(phba, &completions,
 991                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 992 }
 993
 994 /**
 995  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 996  * @phba: pointer to lpfc HBA data structure.
 997  *
 998  * This routine will do uninitialization after the HBA is reset when bring
 999  * down the SLI Layer.
1000  *
1001  * Return codes
1002  *   0 - success.
1003  *   Any other value - error.
1004  **/
1005 static int
1006 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1007 {
1008         lpfc_hba_free_post_buf(phba);
1009         lpfc_hba_clean_txcmplq(phba);
1010         return 0;
1011 }
1012
1013 /**
1014  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1015  * @phba: pointer to lpfc HBA data structure.
1016  *
1017  * This routine will do uninitialization after the HBA is reset when bring
1018  * down the SLI Layer.
1019  *
1020  * Return codes
1021  *   0 - success.
1022  *   Any other value - error.
1023  **/
1024 static int
1025 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1026 {
1027         struct lpfc_io_buf *psb, *psb_next;
1028         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1029         struct lpfc_sli4_hdw_queue *qp;
1030         LIST_HEAD(aborts);
1031         LIST_HEAD(nvme_aborts);
1032         LIST_HEAD(nvmet_aborts);
1033         struct lpfc_sglq *sglq_entry = NULL;
1034         int cnt, idx;
1035
1036
1037         lpfc_sli_hbqbuf_free_all(phba);
1038         lpfc_hba_clean_txcmplq(phba);
1039
1040         /* At this point in time the HBA is either reset or DOA. Either
1041          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1042          * on the lpfc_els_sgl_list so that it can either be freed if the
1043          * driver is unloading or reposted if the driver is restarting
1044          * the port.
1045          */
1046         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1047                                         /* scsl_buf_list */
1048         /* sgl_list_lock required because worker thread uses this
1049          * list.
1050          */
1051         spin_lock(&phba->sli4_hba.sgl_list_lock);
1052         list_for_each_entry(sglq_entry,
1053                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1054                 sglq_entry->state = SGL_FREED;
1055
1056         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1057                         &phba->sli4_hba.lpfc_els_sgl_list);
1058
1059
1060         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1061
1062         /* abts_xxxx_buf_list_lock required because worker thread uses this
1063          * list.
1064          */
1065         cnt = 0;
1066         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1067                 qp = &phba->sli4_hba.hdwq[idx];
1068
1069                 spin_lock(&qp->abts_io_buf_list_lock);
1070                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1071                                  &aborts);
1072
1073                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1074                         psb->pCmd = NULL;
1075                         psb->status = IOSTAT_SUCCESS;
1076                         cnt++;
1077                 }
1078                 spin_lock(&qp->io_buf_list_put_lock);
1079                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1080                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1081                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1082                 qp->abts_scsi_io_bufs = 0;
1083                 qp->abts_nvme_io_bufs = 0;
1084                 spin_unlock(&qp->io_buf_list_put_lock);
1085                 spin_unlock(&qp->abts_io_buf_list_lock);
1086         }
1087         spin_unlock_irq(&phba->hbalock);
1088
1089         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1090                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1091                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1092                                  &nvmet_aborts);
1093                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1094                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1095                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1096                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1097                 }
1098         }
1099
1100         lpfc_sli4_free_sp_events(phba);
1101         return cnt;
1102 }
1103
1104 /**
1105  * lpfc_hba_down_post - Wrapper func for hba down post routine
1106  * @phba: pointer to lpfc HBA data structure.
1107  *
1108  * This routine wraps the actual SLI3 or SLI4 routine for performing
1109  * uninitialization after the HBA is reset when bring down the SLI Layer.
1110  *
1111  * Return codes
1112  *   0 - success.
1113  *   Any other value - error.
1114  **/
1115 int
1116 lpfc_hba_down_post(struct lpfc_hba *phba)
1117 {
1118         return (*phba->lpfc_hba_down_post)(phba);
1119 }
1120
1121 /**
1122  * lpfc_hb_timeout - The HBA-timer timeout handler
1123  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1124  *
1125  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1126  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1127  * work-port-events bitmap and the worker thread is notified. This timeout
1128  * event will be used by the worker thread to invoke the actual timeout
1129  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1130  * be performed in the timeout handler and the HBA timeout event bit shall
1131  * be cleared by the worker thread after it has taken the event bitmap out.
1132  **/
1133 static void
1134 lpfc_hb_timeout(struct timer_list *t)
1135 {
1136         struct lpfc_hba *phba;
1137         uint32_t tmo_posted;
1138         unsigned long iflag;
1139
1140         phba = from_timer(phba, t, hb_tmofunc);
1141
1142         /* Check for heart beat timeout conditions */
1143         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1144         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1145         if (!tmo_posted)
1146                 phba->pport->work_port_events |= WORKER_HB_TMO;
1147         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1148
1149         /* Tell the worker thread there is work to do */
1150         if (!tmo_posted)
1151                 lpfc_worker_wake_up(phba);
1152         return;
1153 }
1154
1155 /**
1156  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1157  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1158  *
1159  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1160  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1161  * work-port-events bitmap and the worker thread is notified. This timeout
1162  * event will be used by the worker thread to invoke the actual timeout
1163  * handler routine, lpfc_rrq_handler. Any periodical operations will
1164  * be performed in the timeout handler and the RRQ timeout event bit shall
1165  * be cleared by the worker thread after it has taken the event bitmap out.
1166  **/
1167 static void
1168 lpfc_rrq_timeout(struct timer_list *t)
1169 {
1170         struct lpfc_hba *phba;
1171         unsigned long iflag;
1172
1173         phba = from_timer(phba, t, rrq_tmr);
1174         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1175         if (!(phba->pport->load_flag & FC_UNLOADING))
1176                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1177         else
1178                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1179         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1180
1181         if (!(phba->pport->load_flag & FC_UNLOADING))
1182                 lpfc_worker_wake_up(phba);
1183 }
1184
1185 /**
1186  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1187  * @phba: pointer to lpfc hba data structure.
1188  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1189  *
1190  * This is the callback function to the lpfc heart-beat mailbox command.
1191  * If configured, the lpfc driver issues the heart-beat mailbox command to
1192  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1193  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1194  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1195  * heart-beat outstanding state. Once the mailbox command comes back and
1196  * no error conditions detected, the heart-beat mailbox command timer is
1197  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1198  * state is cleared for the next heart-beat. If the timer expired with the
1199  * heart-beat outstanding state set, the driver will put the HBA offline.
1200  **/
1201 static void
1202 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1203 {
1204         unsigned long drvr_flag;
1205
1206         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1207         phba->hb_outstanding = 0;
1208         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1209
1210         /* Check and reset heart-beat timer is necessary */
1211         mempool_free(pmboxq, phba->mbox_mem_pool);
1212         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1213                 !(phba->link_state == LPFC_HBA_ERROR) &&
1214                 !(phba->pport->load_flag & FC_UNLOADING))
1215                 mod_timer(&phba->hb_tmofunc,
1216                           jiffies +
1217                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1218         return;
1219 }
1220
1221 /*
1222  * lpfc_idle_stat_delay_work - idle_stat tracking
1223  *
1224  * This routine tracks per-cq idle_stat and determines polling decisions.
1225  *
1226  * Return codes:
1227  *   None
1228  **/
1229 static void
1230 lpfc_idle_stat_delay_work(struct work_struct *work)
1231 {
1232         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1233                                              struct lpfc_hba,
1234                                              idle_stat_delay_work);
1235         struct lpfc_queue *cq;
1236         struct lpfc_sli4_hdw_queue *hdwq;
1237         struct lpfc_idle_stat *idle_stat;
1238         u32 i, idle_percent;
1239         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1240
1241         if (phba->pport->load_flag & FC_UNLOADING)
1242                 return;
1243
1244         if (phba->link_state == LPFC_HBA_ERROR ||
1245             phba->pport->fc_flag & FC_OFFLINE_MODE)
1246                 goto requeue;
1247
1248         for_each_present_cpu(i) {
1249                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1250                 cq = hdwq->io_cq;
1251
1252                 /* Skip if we've already handled this cq's primary CPU */
1253                 if (cq->chann != i)
1254                         continue;
1255
1256                 idle_stat = &phba->sli4_hba.idle_stat[i];
1257
1258                 /* get_cpu_idle_time returns values as running counters. Thus,
1259                  * to know the amount for this period, the prior counter values
1260                  * need to be subtracted from the current counter values.
1261                  * From there, the idle time stat can be calculated as a
1262                  * percentage of 100 - the sum of the other consumption times.
1263                  */
1264                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1265                 diff_idle = wall_idle - idle_stat->prev_idle;
1266                 diff_wall = wall - idle_stat->prev_wall;
1267
1268                 if (diff_wall <= diff_idle)
1269                         busy_time = 0;
1270                 else
1271                         busy_time = diff_wall - diff_idle;
1272
1273                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1274                 idle_percent = 100 - idle_percent;
1275
1276                 if (idle_percent < 15)
1277                         cq->poll_mode = LPFC_QUEUE_WORK;
1278                 else
1279                         cq->poll_mode = LPFC_IRQ_POLL;
1280
1281                 idle_stat->prev_idle = wall_idle;
1282                 idle_stat->prev_wall = wall;
1283         }
1284
1285 requeue:
1286         schedule_delayed_work(&phba->idle_stat_delay_work,
1287                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1288 }
1289
1290 static void
1291 lpfc_hb_eq_delay_work(struct work_struct *work)
1292 {
1293         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1294                                              struct lpfc_hba, eq_delay_work);
1295         struct lpfc_eq_intr_info *eqi, *eqi_new;
1296         struct lpfc_queue *eq, *eq_next;
1297         unsigned char *ena_delay = NULL;
1298         uint32_t usdelay;
1299         int i;
1300
1301         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1302                 return;
1303
1304         if (phba->link_state == LPFC_HBA_ERROR ||
1305             phba->pport->fc_flag & FC_OFFLINE_MODE)
1306                 goto requeue;
1307
1308         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1309                             GFP_KERNEL);
1310         if (!ena_delay)
1311                 goto requeue;
1312
1313         for (i = 0; i < phba->cfg_irq_chann; i++) {
1314                 /* Get the EQ corresponding to the IRQ vector */
1315                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1316                 if (!eq)
1317                         continue;
1318                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1319                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1320                         ena_delay[eq->last_cpu] = 1;
1321                 }
1322         }
1323
1324         for_each_present_cpu(i) {
1325                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1326                 if (ena_delay[i]) {
1327                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1328                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1329                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1330                 } else {
1331                         usdelay = 0;
1332                 }
1333
1334                 eqi->icnt = 0;
1335
1336                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1337                         if (unlikely(eq->last_cpu != i)) {
1338                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1339                                                       eq->last_cpu);
1340                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1341                                 continue;
1342                         }
1343                         if (usdelay != eq->q_mode)
1344                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1345                                                          usdelay);
1346                 }
1347         }
1348
1349         kfree(ena_delay);
1350
1351 requeue:
1352         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1353                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1354 }
1355
1356 /**
1357  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1358  * @phba: pointer to lpfc hba data structure.
1359  *
1360  * For each heartbeat, this routine does some heuristic methods to adjust
1361  * XRI distribution. The goal is to fully utilize free XRIs.
1362  **/
1363 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1364 {
1365         u32 i;
1366         u32 hwq_count;
1367
1368         hwq_count = phba->cfg_hdw_queue;
1369         for (i = 0; i < hwq_count; i++) {
1370                 /* Adjust XRIs in private pool */
1371                 lpfc_adjust_pvt_pool_count(phba, i);
1372
1373                 /* Adjust high watermark */
1374                 lpfc_adjust_high_watermark(phba, i);
1375
1376 #ifdef LPFC_MXP_STAT
1377                 /* Snapshot pbl, pvt and busy count */
1378                 lpfc_snapshot_mxp(phba, i);
1379 #endif
1380         }
1381 }
1382
1383 /**
1384  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1385  * @phba: pointer to lpfc hba data structure.
1386  *
1387  * This is the actual HBA-timer timeout handler to be invoked by the worker
1388  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1389  * handler performs any periodic operations needed for the device. If such
1390  * periodic event has already been attended to either in the interrupt handler
1391  * or by processing slow-ring or fast-ring events within the HBA-timer
1392  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1393  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1394  * is configured and there is no heart-beat mailbox command outstanding, a
1395  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1396  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1397  * to offline.
1398  **/
1399 void
1400 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1401 {
1402         struct lpfc_vport **vports;
1403         LPFC_MBOXQ_t *pmboxq;
1404         struct lpfc_dmabuf *buf_ptr;
1405         int retval, i;
1406         struct lpfc_sli *psli = &phba->sli;
1407         LIST_HEAD(completions);
1408
1409         if (phba->cfg_xri_rebalancing) {
1410                 /* Multi-XRI pools handler */
1411                 lpfc_hb_mxp_handler(phba);
1412         }
1413
1414         vports = lpfc_create_vport_work_array(phba);
1415         if (vports != NULL)
1416                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1417                         lpfc_rcv_seq_check_edtov(vports[i]);
1418                         lpfc_fdmi_change_check(vports[i]);
1419                 }
1420         lpfc_destroy_vport_work_array(phba, vports);
1421
1422         if ((phba->link_state == LPFC_HBA_ERROR) ||
1423                 (phba->pport->load_flag & FC_UNLOADING) ||
1424                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1425                 return;
1426
1427         spin_lock_irq(&phba->pport->work_port_lock);
1428
1429         if (time_after(phba->last_completion_time +
1430                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1431                         jiffies)) {
1432                 spin_unlock_irq(&phba->pport->work_port_lock);
1433                 if (!phba->hb_outstanding)
1434                         mod_timer(&phba->hb_tmofunc,
1435                                 jiffies +
1436                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1437                 else
1438                         mod_timer(&phba->hb_tmofunc,
1439                                 jiffies +
1440                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1441                 return;
1442         }
1443         spin_unlock_irq(&phba->pport->work_port_lock);
1444
1445         if (phba->elsbuf_cnt &&
1446                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1447                 spin_lock_irq(&phba->hbalock);
1448                 list_splice_init(&phba->elsbuf, &completions);
1449                 phba->elsbuf_cnt = 0;
1450                 phba->elsbuf_prev_cnt = 0;
1451                 spin_unlock_irq(&phba->hbalock);
1452
1453                 while (!list_empty(&completions)) {
1454                         list_remove_head(&completions, buf_ptr,
1455                                 struct lpfc_dmabuf, list);
1456                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1457                         kfree(buf_ptr);
1458                 }
1459         }
1460         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1461
1462         /* If there is no heart beat outstanding, issue a heartbeat command */
1463         if (phba->cfg_enable_hba_heartbeat) {
1464                 if (!phba->hb_outstanding) {
1465                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1466                                 (list_empty(&psli->mboxq))) {
1467                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1468                                                         GFP_KERNEL);
1469                                 if (!pmboxq) {
1470                                         mod_timer(&phba->hb_tmofunc,
1471                                                  jiffies +
1472                                                  msecs_to_jiffies(1000 *
1473                                                  LPFC_HB_MBOX_INTERVAL));
1474                                         return;
1475                                 }
1476
1477                                 lpfc_heart_beat(phba, pmboxq);
1478                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1479                                 pmboxq->vport = phba->pport;
1480                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1481                                                 MBX_NOWAIT);
1482
1483                                 if (retval != MBX_BUSY &&
1484                                         retval != MBX_SUCCESS) {
1485                                         mempool_free(pmboxq,
1486                                                         phba->mbox_mem_pool);
1487                                         mod_timer(&phba->hb_tmofunc,
1488                                                 jiffies +
1489                                                 msecs_to_jiffies(1000 *
1490                                                 LPFC_HB_MBOX_INTERVAL));
1491                                         return;
1492                                 }
1493                                 phba->skipped_hb = 0;
1494                                 phba->hb_outstanding = 1;
1495                         } else if (time_before_eq(phba->last_completion_time,
1496                                         phba->skipped_hb)) {
1497                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1498                                         "2857 Last completion time not "
1499                                         " updated in %d ms\n",
1500                                         jiffies_to_msecs(jiffies
1501                                                  - phba->last_completion_time));
1502                         } else
1503                                 phba->skipped_hb = jiffies;
1504
1505                         mod_timer(&phba->hb_tmofunc,
1506                                  jiffies +
1507                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1508                         return;
1509                 } else {
1510                         /*
1511                         * If heart beat timeout called with hb_outstanding set
1512                         * we need to give the hb mailbox cmd a chance to
1513                         * complete or TMO.
1514                         */
1515                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1516                                         "0459 Adapter heartbeat still out"
1517                                         "standing:last compl time was %d ms.\n",
1518                                         jiffies_to_msecs(jiffies
1519                                                  - phba->last_completion_time));
1520                         mod_timer(&phba->hb_tmofunc,
1521                                 jiffies +
1522                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1523                 }
1524         } else {
1525                         mod_timer(&phba->hb_tmofunc,
1526                                 jiffies +
1527                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1528         }
1529 }
1530
1531 /**
1532  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1533  * @phba: pointer to lpfc hba data structure.
1534  *
1535  * This routine is called to bring the HBA offline when HBA hardware error
1536  * other than Port Error 6 has been detected.
1537  **/
1538 static void
1539 lpfc_offline_eratt(struct lpfc_hba *phba)
1540 {
1541         struct lpfc_sli   *psli = &phba->sli;
1542
1543         spin_lock_irq(&phba->hbalock);
1544         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1545         spin_unlock_irq(&phba->hbalock);
1546         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1547
1548         lpfc_offline(phba);
1549         lpfc_reset_barrier(phba);
1550         spin_lock_irq(&phba->hbalock);
1551         lpfc_sli_brdreset(phba);
1552         spin_unlock_irq(&phba->hbalock);
1553         lpfc_hba_down_post(phba);
1554         lpfc_sli_brdready(phba, HS_MBRDY);
1555         lpfc_unblock_mgmt_io(phba);
1556         phba->link_state = LPFC_HBA_ERROR;
1557         return;
1558 }
1559
1560 /**
1561  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1562  * @phba: pointer to lpfc hba data structure.
1563  *
1564  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1565  * other than Port Error 6 has been detected.
1566  **/
1567 void
1568 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1569 {
1570         spin_lock_irq(&phba->hbalock);
1571         phba->link_state = LPFC_HBA_ERROR;
1572         spin_unlock_irq(&phba->hbalock);
1573
1574         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1575         lpfc_sli_flush_io_rings(phba);
1576         lpfc_offline(phba);
1577         lpfc_hba_down_post(phba);
1578         lpfc_unblock_mgmt_io(phba);
1579 }
1580
1581 /**
1582  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1583  * @phba: pointer to lpfc hba data structure.
1584  *
1585  * This routine is invoked to handle the deferred HBA hardware error
1586  * conditions. This type of error is indicated by HBA by setting ER1
1587  * and another ER bit in the host status register. The driver will
1588  * wait until the ER1 bit clears before handling the error condition.
1589  **/
1590 static void
1591 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1592 {
1593         uint32_t old_host_status = phba->work_hs;
1594         struct lpfc_sli *psli = &phba->sli;
1595
1596         /* If the pci channel is offline, ignore possible errors,
1597          * since we cannot communicate with the pci card anyway.
1598          */
1599         if (pci_channel_offline(phba->pcidev)) {
1600                 spin_lock_irq(&phba->hbalock);
1601                 phba->hba_flag &= ~DEFER_ERATT;
1602                 spin_unlock_irq(&phba->hbalock);
1603                 return;
1604         }
1605
1606         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1607                         "0479 Deferred Adapter Hardware Error "
1608                         "Data: x%x x%x x%x\n",
1609                         phba->work_hs, phba->work_status[0],
1610                         phba->work_status[1]);
1611
1612         spin_lock_irq(&phba->hbalock);
1613         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1614         spin_unlock_irq(&phba->hbalock);
1615
1616
1617         /*
1618          * Firmware stops when it triggred erratt. That could cause the I/Os
1619          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1620          * SCSI layer retry it after re-establishing link.
1621          */
1622         lpfc_sli_abort_fcp_rings(phba);
1623
1624         /*
1625          * There was a firmware error. Take the hba offline and then
1626          * attempt to restart it.
1627          */
1628         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1629         lpfc_offline(phba);
1630
1631         /* Wait for the ER1 bit to clear.*/
1632         while (phba->work_hs & HS_FFER1) {
1633                 msleep(100);
1634                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1635                         phba->work_hs = UNPLUG_ERR ;
1636                         break;
1637                 }
1638                 /* If driver is unloading let the worker thread continue */
1639                 if (phba->pport->load_flag & FC_UNLOADING) {
1640                         phba->work_hs = 0;
1641                         break;
1642                 }
1643         }
1644
1645         /*
1646          * This is to ptrotect against a race condition in which
1647          * first write to the host attention register clear the
1648          * host status register.
1649          */
1650         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1651                 phba->work_hs = old_host_status & ~HS_FFER1;
1652
1653         spin_lock_irq(&phba->hbalock);
1654         phba->hba_flag &= ~DEFER_ERATT;
1655         spin_unlock_irq(&phba->hbalock);
1656         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1657         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1658 }
1659
1660 static void
1661 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1662 {
1663         struct lpfc_board_event_header board_event;
1664         struct Scsi_Host *shost;
1665
1666         board_event.event_type = FC_REG_BOARD_EVENT;
1667         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1668         shost = lpfc_shost_from_vport(phba->pport);
1669         fc_host_post_vendor_event(shost, fc_get_event_number(),
1670                                   sizeof(board_event),
1671                                   (char *) &board_event,
1672                                   LPFC_NL_VENDOR_ID);
1673 }
1674
1675 /**
1676  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1677  * @phba: pointer to lpfc hba data structure.
1678  *
1679  * This routine is invoked to handle the following HBA hardware error
1680  * conditions:
1681  * 1 - HBA error attention interrupt
1682  * 2 - DMA ring index out of range
1683  * 3 - Mailbox command came back as unknown
1684  **/
1685 static void
1686 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1687 {
1688         struct lpfc_vport *vport = phba->pport;
1689         struct lpfc_sli   *psli = &phba->sli;
1690         uint32_t event_data;
1691         unsigned long temperature;
1692         struct temp_event temp_event_data;
1693         struct Scsi_Host  *shost;
1694
1695         /* If the pci channel is offline, ignore possible errors,
1696          * since we cannot communicate with the pci card anyway.
1697          */
1698         if (pci_channel_offline(phba->pcidev)) {
1699                 spin_lock_irq(&phba->hbalock);
1700                 phba->hba_flag &= ~DEFER_ERATT;
1701                 spin_unlock_irq(&phba->hbalock);
1702                 return;
1703         }
1704
1705         /* If resets are disabled then leave the HBA alone and return */
1706         if (!phba->cfg_enable_hba_reset)
1707                 return;
1708
1709         /* Send an internal error event to mgmt application */
1710         lpfc_board_errevt_to_mgmt(phba);
1711
1712         if (phba->hba_flag & DEFER_ERATT)
1713                 lpfc_handle_deferred_eratt(phba);
1714
1715         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1716                 if (phba->work_hs & HS_FFER6)
1717                         /* Re-establishing Link */
1718                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1719                                         "1301 Re-establishing Link "
1720                                         "Data: x%x x%x x%x\n",
1721                                         phba->work_hs, phba->work_status[0],
1722                                         phba->work_status[1]);
1723                 if (phba->work_hs & HS_FFER8)
1724                         /* Device Zeroization */
1725                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1726                                         "2861 Host Authentication device "
1727                                         "zeroization Data:x%x x%x x%x\n",
1728                                         phba->work_hs, phba->work_status[0],
1729                                         phba->work_status[1]);
1730
1731                 spin_lock_irq(&phba->hbalock);
1732                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1733                 spin_unlock_irq(&phba->hbalock);
1734
1735                 /*
1736                 * Firmware stops when it triggled erratt with HS_FFER6.
1737                 * That could cause the I/Os dropped by the firmware.
1738                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1739                 * retry it after re-establishing link.
1740                 */
1741                 lpfc_sli_abort_fcp_rings(phba);
1742
1743                 /*
1744                  * There was a firmware error.  Take the hba offline and then
1745                  * attempt to restart it.
1746                  */
1747                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1748                 lpfc_offline(phba);
1749                 lpfc_sli_brdrestart(phba);
1750                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1751                         lpfc_unblock_mgmt_io(phba);
1752                         return;
1753                 }
1754                 lpfc_unblock_mgmt_io(phba);
1755         } else if (phba->work_hs & HS_CRIT_TEMP) {
1756                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1757                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1758                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1759                 temp_event_data.data = (uint32_t)temperature;
1760
1761                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1762                                 "0406 Adapter maximum temperature exceeded "
1763                                 "(%ld), taking this port offline "
1764                                 "Data: x%x x%x x%x\n",
1765                                 temperature, phba->work_hs,
1766                                 phba->work_status[0], phba->work_status[1]);
1767
1768                 shost = lpfc_shost_from_vport(phba->pport);
1769                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1770                                           sizeof(temp_event_data),
1771                                           (char *) &temp_event_data,
1772                                           SCSI_NL_VID_TYPE_PCI
1773                                           | PCI_VENDOR_ID_EMULEX);
1774
1775                 spin_lock_irq(&phba->hbalock);
1776                 phba->over_temp_state = HBA_OVER_TEMP;
1777                 spin_unlock_irq(&phba->hbalock);
1778                 lpfc_offline_eratt(phba);
1779
1780         } else {
1781                 /* The if clause above forces this code path when the status
1782                  * failure is a value other than FFER6. Do not call the offline
1783                  * twice. This is the adapter hardware error path.
1784                  */
1785                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1786                                 "0457 Adapter Hardware Error "
1787                                 "Data: x%x x%x x%x\n",
1788                                 phba->work_hs,
1789                                 phba->work_status[0], phba->work_status[1]);
1790
1791                 event_data = FC_REG_DUMP_EVENT;
1792                 shost = lpfc_shost_from_vport(vport);
1793                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1794                                 sizeof(event_data), (char *) &event_data,
1795                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1796
1797                 lpfc_offline_eratt(phba);
1798         }
1799         return;
1800 }
1801
1802 /**
1803  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1804  * @phba: pointer to lpfc hba data structure.
1805  * @mbx_action: flag for mailbox shutdown action.
1806  * @en_rn_msg: send reset/port recovery message.
1807  * This routine is invoked to perform an SLI4 port PCI function reset in
1808  * response to port status register polling attention. It waits for port
1809  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1810  * During this process, interrupt vectors are freed and later requested
1811  * for handling possible port resource change.
1812  **/
1813 static int
1814 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1815                             bool en_rn_msg)
1816 {
1817         int rc;
1818         uint32_t intr_mode;
1819
1820         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1821             LPFC_SLI_INTF_IF_TYPE_2) {
1822                 /*
1823                  * On error status condition, driver need to wait for port
1824                  * ready before performing reset.
1825                  */
1826                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1827                 if (rc)
1828                         return rc;
1829         }
1830
1831         /* need reset: attempt for port recovery */
1832         if (en_rn_msg)
1833                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1834                                 "2887 Reset Needed: Attempting Port "
1835                                 "Recovery...\n");
1836         lpfc_offline_prep(phba, mbx_action);
1837         lpfc_sli_flush_io_rings(phba);
1838         lpfc_offline(phba);
1839         /* release interrupt for possible resource change */
1840         lpfc_sli4_disable_intr(phba);
1841         rc = lpfc_sli_brdrestart(phba);
1842         if (rc) {
1843                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1844                                 "6309 Failed to restart board\n");
1845                 return rc;
1846         }
1847         /* request and enable interrupt */
1848         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1849         if (intr_mode == LPFC_INTR_ERROR) {
1850                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1851                                 "3175 Failed to enable interrupt\n");
1852                 return -EIO;
1853         }
1854         phba->intr_mode = intr_mode;
1855         rc = lpfc_online(phba);
1856         if (rc == 0)
1857                 lpfc_unblock_mgmt_io(phba);
1858
1859         return rc;
1860 }
1861
1862 /**
1863  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1864  * @phba: pointer to lpfc hba data structure.
1865  *
1866  * This routine is invoked to handle the SLI4 HBA hardware error attention
1867  * conditions.
1868  **/
1869 static void
1870 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1871 {
1872         struct lpfc_vport *vport = phba->pport;
1873         uint32_t event_data;
1874         struct Scsi_Host *shost;
1875         uint32_t if_type;
1876         struct lpfc_register portstat_reg = {0};
1877         uint32_t reg_err1, reg_err2;
1878         uint32_t uerrlo_reg, uemasklo_reg;
1879         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1880         bool en_rn_msg = true;
1881         struct temp_event temp_event_data;
1882         struct lpfc_register portsmphr_reg;
1883         int rc, i;
1884
1885         /* If the pci channel is offline, ignore possible errors, since
1886          * we cannot communicate with the pci card anyway.
1887          */
1888         if (pci_channel_offline(phba->pcidev)) {
1889                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1890                                 "3166 pci channel is offline\n");
1891                 lpfc_sli4_offline_eratt(phba);
1892                 return;
1893         }
1894
1895         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1896         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1897         switch (if_type) {
1898         case LPFC_SLI_INTF_IF_TYPE_0:
1899                 pci_rd_rc1 = lpfc_readl(
1900                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1901                                 &uerrlo_reg);
1902                 pci_rd_rc2 = lpfc_readl(
1903                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1904                                 &uemasklo_reg);
1905                 /* consider PCI bus read error as pci_channel_offline */
1906                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1907                         return;
1908                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1909                         lpfc_sli4_offline_eratt(phba);
1910                         return;
1911                 }
1912                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1913                                 "7623 Checking UE recoverable");
1914
1915                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1916                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1917                                        &portsmphr_reg.word0))
1918                                 continue;
1919
1920                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1921                                                    &portsmphr_reg);
1922                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1923                             LPFC_PORT_SEM_UE_RECOVERABLE)
1924                                 break;
1925                         /*Sleep for 1Sec, before checking SEMAPHORE */
1926                         msleep(1000);
1927                 }
1928
1929                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1930                                 "4827 smphr_port_status x%x : Waited %dSec",
1931                                 smphr_port_status, i);
1932
1933                 /* Recoverable UE, reset the HBA device */
1934                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1935                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1936                         for (i = 0; i < 20; i++) {
1937                                 msleep(1000);
1938                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1939                                     &portsmphr_reg.word0) &&
1940                                     (LPFC_POST_STAGE_PORT_READY ==
1941                                      bf_get(lpfc_port_smphr_port_status,
1942                                      &portsmphr_reg))) {
1943                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1944                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1945                                         if (rc == 0)
1946                                                 return;
1947                                         lpfc_printf_log(phba, KERN_ERR,
1948                                                 LOG_TRACE_EVENT,
1949                                                 "4215 Failed to recover UE");
1950                                         break;
1951                                 }
1952                         }
1953                 }
1954                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1955                                 "7624 Firmware not ready: Failing UE recovery,"
1956                                 " waited %dSec", i);
1957                 phba->link_state = LPFC_HBA_ERROR;
1958                 break;
1959
1960         case LPFC_SLI_INTF_IF_TYPE_2:
1961         case LPFC_SLI_INTF_IF_TYPE_6:
1962                 pci_rd_rc1 = lpfc_readl(
1963                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1964                                 &portstat_reg.word0);
1965                 /* consider PCI bus read error as pci_channel_offline */
1966                 if (pci_rd_rc1 == -EIO) {
1967                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1968                                 "3151 PCI bus read access failure: x%x\n",
1969                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1970                         lpfc_sli4_offline_eratt(phba);
1971                         return;
1972                 }
1973                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1974                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1975                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1976                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1977                                         "2889 Port Overtemperature event, "
1978                                         "taking port offline Data: x%x x%x\n",
1979                                         reg_err1, reg_err2);
1980
1981                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1982                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1983                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1984                         temp_event_data.data = 0xFFFFFFFF;
1985
1986                         shost = lpfc_shost_from_vport(phba->pport);
1987                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1988                                                   sizeof(temp_event_data),
1989                                                   (char *)&temp_event_data,
1990                                                   SCSI_NL_VID_TYPE_PCI
1991                                                   | PCI_VENDOR_ID_EMULEX);
1992
1993                         spin_lock_irq(&phba->hbalock);
1994                         phba->over_temp_state = HBA_OVER_TEMP;
1995                         spin_unlock_irq(&phba->hbalock);
1996                         lpfc_sli4_offline_eratt(phba);
1997                         return;
1998                 }
1999                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2000                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2001                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2002                                         "3143 Port Down: Firmware Update "
2003                                         "Detected\n");
2004                         en_rn_msg = false;
2005                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2006                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2007                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2008                                         "3144 Port Down: Debug Dump\n");
2009                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2010                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2011                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2012                                         "3145 Port Down: Provisioning\n");
2013
2014                 /* If resets are disabled then leave the HBA alone and return */
2015                 if (!phba->cfg_enable_hba_reset)
2016                         return;
2017
2018                 /* Check port status register for function reset */
2019                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2020                                 en_rn_msg);
2021                 if (rc == 0) {
2022                         /* don't report event on forced debug dump */
2023                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2024                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2025                                 return;
2026                         else
2027                                 break;
2028                 }
2029                 /* fall through for not able to recover */
2030                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2031                                 "3152 Unrecoverable error\n");
2032                 phba->link_state = LPFC_HBA_ERROR;
2033                 break;
2034         case LPFC_SLI_INTF_IF_TYPE_1:
2035         default:
2036                 break;
2037         }
2038         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2039                         "3123 Report dump event to upper layer\n");
2040         /* Send an internal error event to mgmt application */
2041         lpfc_board_errevt_to_mgmt(phba);
2042
2043         event_data = FC_REG_DUMP_EVENT;
2044         shost = lpfc_shost_from_vport(vport);
2045         fc_host_post_vendor_event(shost, fc_get_event_number(),
2046                                   sizeof(event_data), (char *) &event_data,
2047                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2048 }
2049
2050 /**
2051  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2052  * @phba: pointer to lpfc HBA data structure.
2053  *
2054  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2055  * routine from the API jump table function pointer from the lpfc_hba struct.
2056  *
2057  * Return codes
2058  *   0 - success.
2059  *   Any other value - error.
2060  **/
2061 void
2062 lpfc_handle_eratt(struct lpfc_hba *phba)
2063 {
2064         (*phba->lpfc_handle_eratt)(phba);
2065 }
2066
2067 /**
2068  * lpfc_handle_latt - The HBA link event handler
2069  * @phba: pointer to lpfc hba data structure.
2070  *
2071  * This routine is invoked from the worker thread to handle a HBA host
2072  * attention link event. SLI3 only.
2073  **/
2074 void
2075 lpfc_handle_latt(struct lpfc_hba *phba)
2076 {
2077         struct lpfc_vport *vport = phba->pport;
2078         struct lpfc_sli   *psli = &phba->sli;
2079         LPFC_MBOXQ_t *pmb;
2080         volatile uint32_t control;
2081         struct lpfc_dmabuf *mp;
2082         int rc = 0;
2083
2084         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2085         if (!pmb) {
2086                 rc = 1;
2087                 goto lpfc_handle_latt_err_exit;
2088         }
2089
2090         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2091         if (!mp) {
2092                 rc = 2;
2093                 goto lpfc_handle_latt_free_pmb;
2094         }
2095
2096         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2097         if (!mp->virt) {
2098                 rc = 3;
2099                 goto lpfc_handle_latt_free_mp;
2100         }
2101
2102         /* Cleanup any outstanding ELS commands */
2103         lpfc_els_flush_all_cmd(phba);
2104
2105         psli->slistat.link_event++;
2106         lpfc_read_topology(phba, pmb, mp);
2107         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2108         pmb->vport = vport;
2109         /* Block ELS IOCBs until we have processed this mbox command */
2110         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2111         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2112         if (rc == MBX_NOT_FINISHED) {
2113                 rc = 4;
2114                 goto lpfc_handle_latt_free_mbuf;
2115         }
2116
2117         /* Clear Link Attention in HA REG */
2118         spin_lock_irq(&phba->hbalock);
2119         writel(HA_LATT, phba->HAregaddr);
2120         readl(phba->HAregaddr); /* flush */
2121         spin_unlock_irq(&phba->hbalock);
2122
2123         return;
2124
2125 lpfc_handle_latt_free_mbuf:
2126         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2127         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2128 lpfc_handle_latt_free_mp:
2129         kfree(mp);
2130 lpfc_handle_latt_free_pmb:
2131         mempool_free(pmb, phba->mbox_mem_pool);
2132 lpfc_handle_latt_err_exit:
2133         /* Enable Link attention interrupts */
2134         spin_lock_irq(&phba->hbalock);
2135         psli->sli_flag |= LPFC_PROCESS_LA;
2136         control = readl(phba->HCregaddr);
2137         control |= HC_LAINT_ENA;
2138         writel(control, phba->HCregaddr);
2139         readl(phba->HCregaddr); /* flush */
2140
2141         /* Clear Link Attention in HA REG */
2142         writel(HA_LATT, phba->HAregaddr);
2143         readl(phba->HAregaddr); /* flush */
2144         spin_unlock_irq(&phba->hbalock);
2145         lpfc_linkdown(phba);
2146         phba->link_state = LPFC_HBA_ERROR;
2147
2148         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2149                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2150
2151         return;
2152 }
2153
2154 /**
2155  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2156  * @phba: pointer to lpfc hba data structure.
2157  * @vpd: pointer to the vital product data.
2158  * @len: length of the vital product data in bytes.
2159  *
2160  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2161  * an array of characters. In this routine, the ModelName, ProgramType, and
2162  * ModelDesc, etc. fields of the phba data structure will be populated.
2163  *
2164  * Return codes
2165  *   0 - pointer to the VPD passed in is NULL
2166  *   1 - success
2167  **/
2168 int
2169 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2170 {
2171         uint8_t lenlo, lenhi;
2172         int Length;
2173         int i, j;
2174         int finished = 0;
2175         int index = 0;
2176
2177         if (!vpd)
2178                 return 0;
2179
2180         /* Vital Product */
2181         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2182                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2183                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2184                         (uint32_t) vpd[3]);
2185         while (!finished && (index < (len - 4))) {
2186                 switch (vpd[index]) {
2187                 case 0x82:
2188                 case 0x91:
2189                         index += 1;
2190                         lenlo = vpd[index];
2191                         index += 1;
2192                         lenhi = vpd[index];
2193                         index += 1;
2194                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2195                         index += i;
2196                         break;
2197                 case 0x90:
2198                         index += 1;
2199                         lenlo = vpd[index];
2200                         index += 1;
2201                         lenhi = vpd[index];
2202                         index += 1;
2203                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2204                         if (Length > len - index)
2205                                 Length = len - index;
2206                         while (Length > 0) {
2207                         /* Look for Serial Number */
2208                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2209                                 index += 2;
2210                                 i = vpd[index];
2211                                 index += 1;
2212                                 j = 0;
2213                                 Length -= (3+i);
2214                                 while(i--) {
2215                                         phba->SerialNumber[j++] = vpd[index++];
2216                                         if (j == 31)
2217                                                 break;
2218                                 }
2219                                 phba->SerialNumber[j] = 0;
2220                                 continue;
2221                         }
2222                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2223                                 phba->vpd_flag |= VPD_MODEL_DESC;
2224                                 index += 2;
2225                                 i = vpd[index];
2226                                 index += 1;
2227                                 j = 0;
2228                                 Length -= (3+i);
2229                                 while(i--) {
2230                                         phba->ModelDesc[j++] = vpd[index++];
2231                                         if (j == 255)
2232                                                 break;
2233                                 }
2234                                 phba->ModelDesc[j] = 0;
2235                                 continue;
2236                         }
2237                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2238                                 phba->vpd_flag |= VPD_MODEL_NAME;
2239                                 index += 2;
2240                                 i = vpd[index];
2241                                 index += 1;
2242                                 j = 0;
2243                                 Length -= (3+i);
2244                                 while(i--) {
2245                                         phba->ModelName[j++] = vpd[index++];
2246                                         if (j == 79)
2247                                                 break;
2248                                 }
2249                                 phba->ModelName[j] = 0;
2250                                 continue;
2251                         }
2252                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2253                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2254                                 index += 2;
2255                                 i = vpd[index];
2256                                 index += 1;
2257                                 j = 0;
2258                                 Length -= (3+i);
2259                                 while(i--) {
2260                                         phba->ProgramType[j++] = vpd[index++];
2261                                         if (j == 255)
2262                                                 break;
2263                                 }
2264                                 phba->ProgramType[j] = 0;
2265                                 continue;
2266                         }
2267                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2268                                 phba->vpd_flag |= VPD_PORT;
2269                                 index += 2;
2270                                 i = vpd[index];
2271                                 index += 1;
2272                                 j = 0;
2273                                 Length -= (3+i);
2274                                 while(i--) {
2275                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2276                                             (phba->sli4_hba.pport_name_sta ==
2277                                              LPFC_SLI4_PPNAME_GET)) {
2278                                                 j++;
2279                                                 index++;
2280                                         } else
2281                                                 phba->Port[j++] = vpd[index++];
2282                                         if (j == 19)
2283                                                 break;
2284                                 }
2285                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2286                                     (phba->sli4_hba.pport_name_sta ==
2287                                      LPFC_SLI4_PPNAME_NON))
2288                                         phba->Port[j] = 0;
2289                                 continue;
2290                         }
2291                         else {
2292                                 index += 2;
2293                                 i = vpd[index];
2294                                 index += 1;
2295                                 index += i;
2296                                 Length -= (3 + i);
2297                         }
2298                 }
2299                 finished = 0;
2300                 break;
2301                 case 0x78:
2302                         finished = 1;
2303                         break;
2304                 default:
2305                         index ++;
2306                         break;
2307                 }
2308         }
2309
2310         return(1);
2311 }
2312
2313 /**
2314  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2315  * @phba: pointer to lpfc hba data structure.
2316  * @mdp: pointer to the data structure to hold the derived model name.
2317  * @descp: pointer to the data structure to hold the derived description.
2318  *
2319  * This routine retrieves HBA's description based on its registered PCI device
2320  * ID. The @descp passed into this function points to an array of 256 chars. It
2321  * shall be returned with the model name, maximum speed, and the host bus type.
2322  * The @mdp passed into this function points to an array of 80 chars. When the
2323  * function returns, the @mdp will be filled with the model name.
2324  **/
2325 static void
2326 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2327 {
2328         lpfc_vpd_t *vp;
2329         uint16_t dev_id = phba->pcidev->device;
2330         int max_speed;
2331         int GE = 0;
2332         int oneConnect = 0; /* default is not a oneConnect */
2333         struct {
2334                 char *name;
2335                 char *bus;
2336                 char *function;
2337         } m = {"<Unknown>", "", ""};
2338
2339         if (mdp && mdp[0] != '\0'
2340                 && descp && descp[0] != '\0')
2341                 return;
2342
2343         if (phba->lmt & LMT_64Gb)
2344                 max_speed = 64;
2345         else if (phba->lmt & LMT_32Gb)
2346                 max_speed = 32;
2347         else if (phba->lmt & LMT_16Gb)
2348                 max_speed = 16;
2349         else if (phba->lmt & LMT_10Gb)
2350                 max_speed = 10;
2351         else if (phba->lmt & LMT_8Gb)
2352                 max_speed = 8;
2353         else if (phba->lmt & LMT_4Gb)
2354                 max_speed = 4;
2355         else if (phba->lmt & LMT_2Gb)
2356                 max_speed = 2;
2357         else if (phba->lmt & LMT_1Gb)
2358                 max_speed = 1;
2359         else
2360                 max_speed = 0;
2361
2362         vp = &phba->vpd;
2363
2364         switch (dev_id) {
2365         case PCI_DEVICE_ID_FIREFLY:
2366                 m = (typeof(m)){"LP6000", "PCI",
2367                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2368                 break;
2369         case PCI_DEVICE_ID_SUPERFLY:
2370                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2371                         m = (typeof(m)){"LP7000", "PCI", ""};
2372                 else
2373                         m = (typeof(m)){"LP7000E", "PCI", ""};
2374                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2375                 break;
2376         case PCI_DEVICE_ID_DRAGONFLY:
2377                 m = (typeof(m)){"LP8000", "PCI",
2378                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2379                 break;
2380         case PCI_DEVICE_ID_CENTAUR:
2381                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2382                         m = (typeof(m)){"LP9002", "PCI", ""};
2383                 else
2384                         m = (typeof(m)){"LP9000", "PCI", ""};
2385                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2386                 break;
2387         case PCI_DEVICE_ID_RFLY:
2388                 m = (typeof(m)){"LP952", "PCI",
2389                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2390                 break;
2391         case PCI_DEVICE_ID_PEGASUS:
2392                 m = (typeof(m)){"LP9802", "PCI-X",
2393                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_THOR:
2396                 m = (typeof(m)){"LP10000", "PCI-X",
2397                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2398                 break;
2399         case PCI_DEVICE_ID_VIPER:
2400                 m = (typeof(m)){"LPX1000",  "PCI-X",
2401                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_PFLY:
2404                 m = (typeof(m)){"LP982", "PCI-X",
2405                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2406                 break;
2407         case PCI_DEVICE_ID_TFLY:
2408                 m = (typeof(m)){"LP1050", "PCI-X",
2409                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2410                 break;
2411         case PCI_DEVICE_ID_HELIOS:
2412                 m = (typeof(m)){"LP11000", "PCI-X2",
2413                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2414                 break;
2415         case PCI_DEVICE_ID_HELIOS_SCSP:
2416                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2417                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2418                 break;
2419         case PCI_DEVICE_ID_HELIOS_DCSP:
2420                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2421                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2422                 break;
2423         case PCI_DEVICE_ID_NEPTUNE:
2424                 m = (typeof(m)){"LPe1000", "PCIe",
2425                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2428                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2429                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2430                 break;
2431         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2432                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2433                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2434                 break;
2435         case PCI_DEVICE_ID_BMID:
2436                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2437                 break;
2438         case PCI_DEVICE_ID_BSMB:
2439                 m = (typeof(m)){"LP111", "PCI-X2",
2440                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2441                 break;
2442         case PCI_DEVICE_ID_ZEPHYR:
2443                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2444                 break;
2445         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2446                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2449                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2450                 GE = 1;
2451                 break;
2452         case PCI_DEVICE_ID_ZMID:
2453                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2454                 break;
2455         case PCI_DEVICE_ID_ZSMB:
2456                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2457                 break;
2458         case PCI_DEVICE_ID_LP101:
2459                 m = (typeof(m)){"LP101", "PCI-X",
2460                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2461                 break;
2462         case PCI_DEVICE_ID_LP10000S:
2463                 m = (typeof(m)){"LP10000-S", "PCI",
2464                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2465                 break;
2466         case PCI_DEVICE_ID_LP11000S:
2467                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2468                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2469                 break;
2470         case PCI_DEVICE_ID_LPE11000S:
2471                 m = (typeof(m)){"LPe11000-S", "PCIe",
2472                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2473                 break;
2474         case PCI_DEVICE_ID_SAT:
2475                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2476                 break;
2477         case PCI_DEVICE_ID_SAT_MID:
2478                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_SAT_SMB:
2481                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2482                 break;
2483         case PCI_DEVICE_ID_SAT_DCSP:
2484                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2485                 break;
2486         case PCI_DEVICE_ID_SAT_SCSP:
2487                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2488                 break;
2489         case PCI_DEVICE_ID_SAT_S:
2490                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2491                 break;
2492         case PCI_DEVICE_ID_HORNET:
2493                 m = (typeof(m)){"LP21000", "PCIe",
2494                                 "Obsolete, Unsupported FCoE Adapter"};
2495                 GE = 1;
2496                 break;
2497         case PCI_DEVICE_ID_PROTEUS_VF:
2498                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2499                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2500                 break;
2501         case PCI_DEVICE_ID_PROTEUS_PF:
2502                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2503                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_PROTEUS_S:
2506                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2507                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_TIGERSHARK:
2510                 oneConnect = 1;
2511                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2512                 break;
2513         case PCI_DEVICE_ID_TOMCAT:
2514                 oneConnect = 1;
2515                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2516                 break;
2517         case PCI_DEVICE_ID_FALCON:
2518                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2519                                 "EmulexSecure Fibre"};
2520                 break;
2521         case PCI_DEVICE_ID_BALIUS:
2522                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2523                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2524                 break;
2525         case PCI_DEVICE_ID_LANCER_FC:
2526                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2527                 break;
2528         case PCI_DEVICE_ID_LANCER_FC_VF:
2529                 m = (typeof(m)){"LPe16000", "PCIe",
2530                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2531                 break;
2532         case PCI_DEVICE_ID_LANCER_FCOE:
2533                 oneConnect = 1;
2534                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2535                 break;
2536         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2537                 oneConnect = 1;
2538                 m = (typeof(m)){"OCe15100", "PCIe",
2539                                 "Obsolete, Unsupported FCoE"};
2540                 break;
2541         case PCI_DEVICE_ID_LANCER_G6_FC:
2542                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2543                 break;
2544         case PCI_DEVICE_ID_LANCER_G7_FC:
2545                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2546                 break;
2547         case PCI_DEVICE_ID_SKYHAWK:
2548         case PCI_DEVICE_ID_SKYHAWK_VF:
2549                 oneConnect = 1;
2550                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2551                 break;
2552         default:
2553                 m = (typeof(m)){"Unknown", "", ""};
2554                 break;
2555         }
2556
2557         if (mdp && mdp[0] == '\0')
2558                 snprintf(mdp, 79,"%s", m.name);
2559         /*
2560          * oneConnect hba requires special processing, they are all initiators
2561          * and we put the port number on the end
2562          */
2563         if (descp && descp[0] == '\0') {
2564                 if (oneConnect)
2565                         snprintf(descp, 255,
2566                                 "Emulex OneConnect %s, %s Initiator %s",
2567                                 m.name, m.function,
2568                                 phba->Port);
2569                 else if (max_speed == 0)
2570                         snprintf(descp, 255,
2571                                 "Emulex %s %s %s",
2572                                 m.name, m.bus, m.function);
2573                 else
2574                         snprintf(descp, 255,
2575                                 "Emulex %s %d%s %s %s",
2576                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2577                                 m.bus, m.function);
2578         }
2579 }
2580
2581 /**
2582  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2583  * @phba: pointer to lpfc hba data structure.
2584  * @pring: pointer to a IOCB ring.
2585  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2586  *
2587  * This routine posts a given number of IOCBs with the associated DMA buffer
2588  * descriptors specified by the cnt argument to the given IOCB ring.
2589  *
2590  * Return codes
2591  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2592  **/
2593 int
2594 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2595 {
2596         IOCB_t *icmd;
2597         struct lpfc_iocbq *iocb;
2598         struct lpfc_dmabuf *mp1, *mp2;
2599
2600         cnt += pring->missbufcnt;
2601
2602         /* While there are buffers to post */
2603         while (cnt > 0) {
2604                 /* Allocate buffer for  command iocb */
2605                 iocb = lpfc_sli_get_iocbq(phba);
2606                 if (iocb == NULL) {
2607                         pring->missbufcnt = cnt;
2608                         return cnt;
2609                 }
2610                 icmd = &iocb->iocb;
2611
2612                 /* 2 buffers can be posted per command */
2613                 /* Allocate buffer to post */
2614                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2615                 if (mp1)
2616                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2617                 if (!mp1 || !mp1->virt) {
2618                         kfree(mp1);
2619                         lpfc_sli_release_iocbq(phba, iocb);
2620                         pring->missbufcnt = cnt;
2621                         return cnt;
2622                 }
2623
2624                 INIT_LIST_HEAD(&mp1->list);
2625                 /* Allocate buffer to post */
2626                 if (cnt > 1) {
2627                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2628                         if (mp2)
2629                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2630                                                             &mp2->phys);
2631                         if (!mp2 || !mp2->virt) {
2632                                 kfree(mp2);
2633                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2634                                 kfree(mp1);
2635                                 lpfc_sli_release_iocbq(phba, iocb);
2636                                 pring->missbufcnt = cnt;
2637                                 return cnt;
2638                         }
2639
2640                         INIT_LIST_HEAD(&mp2->list);
2641                 } else {
2642                         mp2 = NULL;
2643                 }
2644
2645                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2646                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2647                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2648                 icmd->ulpBdeCount = 1;
2649                 cnt--;
2650                 if (mp2) {
2651                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2652                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2653                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2654                         cnt--;
2655                         icmd->ulpBdeCount = 2;
2656                 }
2657
2658                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2659                 icmd->ulpLe = 1;
2660
2661                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2662                     IOCB_ERROR) {
2663                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2664                         kfree(mp1);
2665                         cnt++;
2666                         if (mp2) {
2667                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2668                                 kfree(mp2);
2669                                 cnt++;
2670                         }
2671                         lpfc_sli_release_iocbq(phba, iocb);
2672                         pring->missbufcnt = cnt;
2673                         return cnt;
2674                 }
2675                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2676                 if (mp2)
2677                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2678         }
2679         pring->missbufcnt = 0;
2680         return 0;
2681 }
2682
2683 /**
2684  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2685  * @phba: pointer to lpfc hba data structure.
2686  *
2687  * This routine posts initial receive IOCB buffers to the ELS ring. The
2688  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2689  * set to 64 IOCBs. SLI3 only.
2690  *
2691  * Return codes
2692  *   0 - success (currently always success)
2693  **/
2694 static int
2695 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2696 {
2697         struct lpfc_sli *psli = &phba->sli;
2698
2699         /* Ring 0, ELS / CT buffers */
2700         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2701         /* Ring 2 - FCP no buffers needed */
2702
2703         return 0;
2704 }
2705
2706 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2707
2708 /**
2709  * lpfc_sha_init - Set up initial array of hash table entries
2710  * @HashResultPointer: pointer to an array as hash table.
2711  *
2712  * This routine sets up the initial values to the array of hash table entries
2713  * for the LC HBAs.
2714  **/
2715 static void
2716 lpfc_sha_init(uint32_t * HashResultPointer)
2717 {
2718         HashResultPointer[0] = 0x67452301;
2719         HashResultPointer[1] = 0xEFCDAB89;
2720         HashResultPointer[2] = 0x98BADCFE;
2721         HashResultPointer[3] = 0x10325476;
2722         HashResultPointer[4] = 0xC3D2E1F0;
2723 }
2724
2725 /**
2726  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2727  * @HashResultPointer: pointer to an initial/result hash table.
2728  * @HashWorkingPointer: pointer to an working hash table.
2729  *
2730  * This routine iterates an initial hash table pointed by @HashResultPointer
2731  * with the values from the working hash table pointeed by @HashWorkingPointer.
2732  * The results are putting back to the initial hash table, returned through
2733  * the @HashResultPointer as the result hash table.
2734  **/
2735 static void
2736 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2737 {
2738         int t;
2739         uint32_t TEMP;
2740         uint32_t A, B, C, D, E;
2741         t = 16;
2742         do {
2743                 HashWorkingPointer[t] =
2744                     S(1,
2745                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2746                                                                      8] ^
2747                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2748         } while (++t <= 79);
2749         t = 0;
2750         A = HashResultPointer[0];
2751         B = HashResultPointer[1];
2752         C = HashResultPointer[2];
2753         D = HashResultPointer[3];
2754         E = HashResultPointer[4];
2755
2756         do {
2757                 if (t < 20) {
2758                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2759                 } else if (t < 40) {
2760                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2761                 } else if (t < 60) {
2762                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2763                 } else {
2764                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2765                 }
2766                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2767                 E = D;
2768                 D = C;
2769                 C = S(30, B);
2770                 B = A;
2771                 A = TEMP;
2772         } while (++t <= 79);
2773
2774         HashResultPointer[0] += A;
2775         HashResultPointer[1] += B;
2776         HashResultPointer[2] += C;
2777         HashResultPointer[3] += D;
2778         HashResultPointer[4] += E;
2779
2780 }
2781
2782 /**
2783  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2784  * @RandomChallenge: pointer to the entry of host challenge random number array.
2785  * @HashWorking: pointer to the entry of the working hash array.
2786  *
2787  * This routine calculates the working hash array referred by @HashWorking
2788  * from the challenge random numbers associated with the host, referred by
2789  * @RandomChallenge. The result is put into the entry of the working hash
2790  * array and returned by reference through @HashWorking.
2791  **/
2792 static void
2793 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2794 {
2795         *HashWorking = (*RandomChallenge ^ *HashWorking);
2796 }
2797
2798 /**
2799  * lpfc_hba_init - Perform special handling for LC HBA initialization
2800  * @phba: pointer to lpfc hba data structure.
2801  * @hbainit: pointer to an array of unsigned 32-bit integers.
2802  *
2803  * This routine performs the special handling for LC HBA initialization.
2804  **/
2805 void
2806 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2807 {
2808         int t;
2809         uint32_t *HashWorking;
2810         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2811
2812         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2813         if (!HashWorking)
2814                 return;
2815
2816         HashWorking[0] = HashWorking[78] = *pwwnn++;
2817         HashWorking[1] = HashWorking[79] = *pwwnn;
2818
2819         for (t = 0; t < 7; t++)
2820                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2821
2822         lpfc_sha_init(hbainit);
2823         lpfc_sha_iterate(hbainit, HashWorking);
2824         kfree(HashWorking);
2825 }
2826
2827 /**
2828  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2829  * @vport: pointer to a virtual N_Port data structure.
2830  *
2831  * This routine performs the necessary cleanups before deleting the @vport.
2832  * It invokes the discovery state machine to perform necessary state
2833  * transitions and to release the ndlps associated with the @vport. Note,
2834  * the physical port is treated as @vport 0.
2835  **/
2836 void
2837 lpfc_cleanup(struct lpfc_vport *vport)
2838 {
2839         struct lpfc_hba   *phba = vport->phba;
2840         struct lpfc_nodelist *ndlp, *next_ndlp;
2841         int i = 0;
2842
2843         if (phba->link_state > LPFC_LINK_DOWN)
2844                 lpfc_port_link_failure(vport);
2845
2846         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2847                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2848                         ndlp = lpfc_enable_node(vport, ndlp,
2849                                                 NLP_STE_UNUSED_NODE);
2850                         if (!ndlp)
2851                                 continue;
2852                         spin_lock_irq(&phba->ndlp_lock);
2853                         NLP_SET_FREE_REQ(ndlp);
2854                         spin_unlock_irq(&phba->ndlp_lock);
2855                         /* Trigger the release of the ndlp memory */
2856                         lpfc_nlp_put(ndlp);
2857                         continue;
2858                 }
2859                 spin_lock_irq(&phba->ndlp_lock);
2860                 if (NLP_CHK_FREE_REQ(ndlp)) {
2861                         /* The ndlp should not be in memory free mode already */
2862                         spin_unlock_irq(&phba->ndlp_lock);
2863                         continue;
2864                 } else
2865                         /* Indicate request for freeing ndlp memory */
2866                         NLP_SET_FREE_REQ(ndlp);
2867                 spin_unlock_irq(&phba->ndlp_lock);
2868
2869                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2870                     ndlp->nlp_DID == Fabric_DID) {
2871                         /* Just free up ndlp with Fabric_DID for vports */
2872                         lpfc_nlp_put(ndlp);
2873                         continue;
2874                 }
2875
2876                 /* take care of nodes in unused state before the state
2877                  * machine taking action.
2878                  */
2879                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2880                         lpfc_nlp_put(ndlp);
2881                         continue;
2882                 }
2883
2884                 if (ndlp->nlp_type & NLP_FABRIC)
2885                         lpfc_disc_state_machine(vport, ndlp, NULL,
2886                                         NLP_EVT_DEVICE_RECOVERY);
2887
2888                 lpfc_disc_state_machine(vport, ndlp, NULL,
2889                                              NLP_EVT_DEVICE_RM);
2890         }
2891
2892         /* At this point, ALL ndlp's should be gone
2893          * because of the previous NLP_EVT_DEVICE_RM.
2894          * Lets wait for this to happen, if needed.
2895          */
2896         while (!list_empty(&vport->fc_nodes)) {
2897                 if (i++ > 3000) {
2898                         lpfc_printf_vlog(vport, KERN_ERR,
2899                                          LOG_TRACE_EVENT,
2900                                 "0233 Nodelist not empty\n");
2901                         list_for_each_entry_safe(ndlp, next_ndlp,
2902                                                 &vport->fc_nodes, nlp_listp) {
2903                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2904                                                 LOG_TRACE_EVENT,
2905                                                 "0282 did:x%x ndlp:x%px "
2906                                                 "usgmap:x%x refcnt:%d\n",
2907                                                 ndlp->nlp_DID, (void *)ndlp,
2908                                                 ndlp->nlp_usg_map,
2909                                                 kref_read(&ndlp->kref));
2910                         }
2911                         break;
2912                 }
2913
2914                 /* Wait for any activity on ndlps to settle */
2915                 msleep(10);
2916         }
2917         lpfc_cleanup_vports_rrqs(vport, NULL);
2918 }
2919
2920 /**
2921  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2922  * @vport: pointer to a virtual N_Port data structure.
2923  *
2924  * This routine stops all the timers associated with a @vport. This function
2925  * is invoked before disabling or deleting a @vport. Note that the physical
2926  * port is treated as @vport 0.
2927  **/
2928 void
2929 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2930 {
2931         del_timer_sync(&vport->els_tmofunc);
2932         del_timer_sync(&vport->delayed_disc_tmo);
2933         lpfc_can_disctmo(vport);
2934         return;
2935 }
2936
2937 /**
2938  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2939  * @phba: pointer to lpfc hba data structure.
2940  *
2941  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2942  * caller of this routine should already hold the host lock.
2943  **/
2944 void
2945 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2946 {
2947         /* Clear pending FCF rediscovery wait flag */
2948         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2949
2950         /* Now, try to stop the timer */
2951         del_timer(&phba->fcf.redisc_wait);
2952 }
2953
2954 /**
2955  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2956  * @phba: pointer to lpfc hba data structure.
2957  *
2958  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2959  * checks whether the FCF rediscovery wait timer is pending with the host
2960  * lock held before proceeding with disabling the timer and clearing the
2961  * wait timer pendig flag.
2962  **/
2963 void
2964 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2965 {
2966         spin_lock_irq(&phba->hbalock);
2967         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2968                 /* FCF rediscovery timer already fired or stopped */
2969                 spin_unlock_irq(&phba->hbalock);
2970                 return;
2971         }
2972         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2973         /* Clear failover in progress flags */
2974         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2975         spin_unlock_irq(&phba->hbalock);
2976 }
2977
2978 /**
2979  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2980  * @phba: pointer to lpfc hba data structure.
2981  *
2982  * This routine stops all the timers associated with a HBA. This function is
2983  * invoked before either putting a HBA offline or unloading the driver.
2984  **/
2985 void
2986 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2987 {
2988         if (phba->pport)
2989                 lpfc_stop_vport_timers(phba->pport);
2990         cancel_delayed_work_sync(&phba->eq_delay_work);
2991         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
2992         del_timer_sync(&phba->sli.mbox_tmo);
2993         del_timer_sync(&phba->fabric_block_timer);
2994         del_timer_sync(&phba->eratt_poll);
2995         del_timer_sync(&phba->hb_tmofunc);
2996         if (phba->sli_rev == LPFC_SLI_REV4) {
2997                 del_timer_sync(&phba->rrq_tmr);
2998                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2999         }
3000         phba->hb_outstanding = 0;
3001
3002         switch (phba->pci_dev_grp) {
3003         case LPFC_PCI_DEV_LP:
3004                 /* Stop any LightPulse device specific driver timers */
3005                 del_timer_sync(&phba->fcp_poll_timer);
3006                 break;
3007         case LPFC_PCI_DEV_OC:
3008                 /* Stop any OneConnect device specific driver timers */
3009                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3010                 break;
3011         default:
3012                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3013                                 "0297 Invalid device group (x%x)\n",
3014                                 phba->pci_dev_grp);
3015                 break;
3016         }
3017         return;
3018 }
3019
3020 /**
3021  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3022  * @phba: pointer to lpfc hba data structure.
3023  * @mbx_action: flag for mailbox no wait action.
3024  *
3025  * This routine marks a HBA's management interface as blocked. Once the HBA's
3026  * management interface is marked as blocked, all the user space access to
3027  * the HBA, whether they are from sysfs interface or libdfc interface will
3028  * all be blocked. The HBA is set to block the management interface when the
3029  * driver prepares the HBA interface for online or offline.
3030  **/
3031 static void
3032 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3033 {
3034         unsigned long iflag;
3035         uint8_t actcmd = MBX_HEARTBEAT;
3036         unsigned long timeout;
3037
3038         spin_lock_irqsave(&phba->hbalock, iflag);
3039         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3040         spin_unlock_irqrestore(&phba->hbalock, iflag);
3041         if (mbx_action == LPFC_MBX_NO_WAIT)
3042                 return;
3043         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3044         spin_lock_irqsave(&phba->hbalock, iflag);
3045         if (phba->sli.mbox_active) {
3046                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3047                 /* Determine how long we might wait for the active mailbox
3048                  * command to be gracefully completed by firmware.
3049                  */
3050                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3051                                 phba->sli.mbox_active) * 1000) + jiffies;
3052         }
3053         spin_unlock_irqrestore(&phba->hbalock, iflag);
3054
3055         /* Wait for the outstnading mailbox command to complete */
3056         while (phba->sli.mbox_active) {
3057                 /* Check active mailbox complete status every 2ms */
3058                 msleep(2);
3059                 if (time_after(jiffies, timeout)) {
3060                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3061                                         "2813 Mgmt IO is Blocked %x "
3062                                         "- mbox cmd %x still active\n",
3063                                         phba->sli.sli_flag, actcmd);
3064                         break;
3065                 }
3066         }
3067 }
3068
3069 /**
3070  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3071  * @phba: pointer to lpfc hba data structure.
3072  *
3073  * Allocate RPIs for all active remote nodes. This is needed whenever
3074  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3075  * is to fixup the temporary rpi assignments.
3076  **/
3077 void
3078 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3079 {
3080         struct lpfc_nodelist  *ndlp, *next_ndlp;
3081         struct lpfc_vport **vports;
3082         int i, rpi;
3083         unsigned long flags;
3084
3085         if (phba->sli_rev != LPFC_SLI_REV4)
3086                 return;
3087
3088         vports = lpfc_create_vport_work_array(phba);
3089         if (vports == NULL)
3090                 return;
3091
3092         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3093                 if (vports[i]->load_flag & FC_UNLOADING)
3094                         continue;
3095
3096                 list_for_each_entry_safe(ndlp, next_ndlp,
3097                                          &vports[i]->fc_nodes,
3098                                          nlp_listp) {
3099                         if (!NLP_CHK_NODE_ACT(ndlp))
3100                                 continue;
3101                         rpi = lpfc_sli4_alloc_rpi(phba);
3102                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3103                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3104                                 NLP_CLR_NODE_ACT(ndlp);
3105                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3106                                 continue;
3107                         }
3108                         ndlp->nlp_rpi = rpi;
3109                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3110                                          LOG_NODE | LOG_DISCOVERY,
3111                                          "0009 Assign RPI x%x to ndlp x%px "
3112                                          "DID:x%06x flg:x%x map:x%x\n",
3113                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3114                                          ndlp->nlp_flag, ndlp->nlp_usg_map);
3115                 }
3116         }
3117         lpfc_destroy_vport_work_array(phba, vports);
3118 }
3119
3120 /**
3121  * lpfc_create_expedite_pool - create expedite pool
3122  * @phba: pointer to lpfc hba data structure.
3123  *
3124  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3125  * to expedite pool. Mark them as expedite.
3126  **/
3127 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3128 {
3129         struct lpfc_sli4_hdw_queue *qp;
3130         struct lpfc_io_buf *lpfc_ncmd;
3131         struct lpfc_io_buf *lpfc_ncmd_next;
3132         struct lpfc_epd_pool *epd_pool;
3133         unsigned long iflag;
3134
3135         epd_pool = &phba->epd_pool;
3136         qp = &phba->sli4_hba.hdwq[0];
3137
3138         spin_lock_init(&epd_pool->lock);
3139         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3140         spin_lock(&epd_pool->lock);
3141         INIT_LIST_HEAD(&epd_pool->list);
3142         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3143                                  &qp->lpfc_io_buf_list_put, list) {
3144                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3145                 lpfc_ncmd->expedite = true;
3146                 qp->put_io_bufs--;
3147                 epd_pool->count++;
3148                 if (epd_pool->count >= XRI_BATCH)
3149                         break;
3150         }
3151         spin_unlock(&epd_pool->lock);
3152         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3153 }
3154
3155 /**
3156  * lpfc_destroy_expedite_pool - destroy expedite pool
3157  * @phba: pointer to lpfc hba data structure.
3158  *
3159  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3160  * of HWQ 0. Clear the mark.
3161  **/
3162 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3163 {
3164         struct lpfc_sli4_hdw_queue *qp;
3165         struct lpfc_io_buf *lpfc_ncmd;
3166         struct lpfc_io_buf *lpfc_ncmd_next;
3167         struct lpfc_epd_pool *epd_pool;
3168         unsigned long iflag;
3169
3170         epd_pool = &phba->epd_pool;
3171         qp = &phba->sli4_hba.hdwq[0];
3172
3173         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3174         spin_lock(&epd_pool->lock);
3175         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3176                                  &epd_pool->list, list) {
3177                 list_move_tail(&lpfc_ncmd->list,
3178                                &qp->lpfc_io_buf_list_put);
3179                 lpfc_ncmd->flags = false;
3180                 qp->put_io_bufs++;
3181                 epd_pool->count--;
3182         }
3183         spin_unlock(&epd_pool->lock);
3184         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3185 }
3186
3187 /**
3188  * lpfc_create_multixri_pools - create multi-XRI pools
3189  * @phba: pointer to lpfc hba data structure.
3190  *
3191  * This routine initialize public, private per HWQ. Then, move XRIs from
3192  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3193  * Initialized.
3194  **/
3195 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3196 {
3197         u32 i, j;
3198         u32 hwq_count;
3199         u32 count_per_hwq;
3200         struct lpfc_io_buf *lpfc_ncmd;
3201         struct lpfc_io_buf *lpfc_ncmd_next;
3202         unsigned long iflag;
3203         struct lpfc_sli4_hdw_queue *qp;
3204         struct lpfc_multixri_pool *multixri_pool;
3205         struct lpfc_pbl_pool *pbl_pool;
3206         struct lpfc_pvt_pool *pvt_pool;
3207
3208         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3209                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3210                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3211                         phba->sli4_hba.io_xri_cnt);
3212
3213         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3214                 lpfc_create_expedite_pool(phba);
3215
3216         hwq_count = phba->cfg_hdw_queue;
3217         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3218
3219         for (i = 0; i < hwq_count; i++) {
3220                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3221
3222                 if (!multixri_pool) {
3223                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3224                                         "1238 Failed to allocate memory for "
3225                                         "multixri_pool\n");
3226
3227                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3228                                 lpfc_destroy_expedite_pool(phba);
3229
3230                         j = 0;
3231                         while (j < i) {
3232                                 qp = &phba->sli4_hba.hdwq[j];
3233                                 kfree(qp->p_multixri_pool);
3234                                 j++;
3235                         }
3236                         phba->cfg_xri_rebalancing = 0;
3237                         return;
3238                 }
3239
3240                 qp = &phba->sli4_hba.hdwq[i];
3241                 qp->p_multixri_pool = multixri_pool;
3242
3243                 multixri_pool->xri_limit = count_per_hwq;
3244                 multixri_pool->rrb_next_hwqid = i;
3245
3246                 /* Deal with public free xri pool */
3247                 pbl_pool = &multixri_pool->pbl_pool;
3248                 spin_lock_init(&pbl_pool->lock);
3249                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3250                 spin_lock(&pbl_pool->lock);
3251                 INIT_LIST_HEAD(&pbl_pool->list);
3252                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3253                                          &qp->lpfc_io_buf_list_put, list) {
3254                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3255                         qp->put_io_bufs--;
3256                         pbl_pool->count++;
3257                 }
3258                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3259                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3260                                 pbl_pool->count, i);
3261                 spin_unlock(&pbl_pool->lock);
3262                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3263
3264                 /* Deal with private free xri pool */
3265                 pvt_pool = &multixri_pool->pvt_pool;
3266                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3267                 pvt_pool->low_watermark = XRI_BATCH;
3268                 spin_lock_init(&pvt_pool->lock);
3269                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3270                 INIT_LIST_HEAD(&pvt_pool->list);
3271                 pvt_pool->count = 0;
3272                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3273         }
3274 }
3275
3276 /**
3277  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3278  * @phba: pointer to lpfc hba data structure.
3279  *
3280  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3281  **/
3282 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3283 {
3284         u32 i;
3285         u32 hwq_count;
3286         struct lpfc_io_buf *lpfc_ncmd;
3287         struct lpfc_io_buf *lpfc_ncmd_next;
3288         unsigned long iflag;
3289         struct lpfc_sli4_hdw_queue *qp;
3290         struct lpfc_multixri_pool *multixri_pool;
3291         struct lpfc_pbl_pool *pbl_pool;
3292         struct lpfc_pvt_pool *pvt_pool;
3293
3294         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3295                 lpfc_destroy_expedite_pool(phba);
3296
3297         if (!(phba->pport->load_flag & FC_UNLOADING))
3298                 lpfc_sli_flush_io_rings(phba);
3299
3300         hwq_count = phba->cfg_hdw_queue;
3301
3302         for (i = 0; i < hwq_count; i++) {
3303                 qp = &phba->sli4_hba.hdwq[i];
3304                 multixri_pool = qp->p_multixri_pool;
3305                 if (!multixri_pool)
3306                         continue;
3307
3308                 qp->p_multixri_pool = NULL;
3309
3310                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3311
3312                 /* Deal with public free xri pool */
3313                 pbl_pool = &multixri_pool->pbl_pool;
3314                 spin_lock(&pbl_pool->lock);
3315
3316                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3317                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3318                                 pbl_pool->count, i);
3319
3320                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3321                                          &pbl_pool->list, list) {
3322                         list_move_tail(&lpfc_ncmd->list,
3323                                        &qp->lpfc_io_buf_list_put);
3324                         qp->put_io_bufs++;
3325                         pbl_pool->count--;
3326                 }
3327
3328                 INIT_LIST_HEAD(&pbl_pool->list);
3329                 pbl_pool->count = 0;
3330
3331                 spin_unlock(&pbl_pool->lock);
3332
3333                 /* Deal with private free xri pool */
3334                 pvt_pool = &multixri_pool->pvt_pool;
3335                 spin_lock(&pvt_pool->lock);
3336
3337                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3338                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3339                                 pvt_pool->count, i);
3340
3341                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3342                                          &pvt_pool->list, list) {
3343                         list_move_tail(&lpfc_ncmd->list,
3344                                        &qp->lpfc_io_buf_list_put);
3345                         qp->put_io_bufs++;
3346                         pvt_pool->count--;
3347                 }
3348
3349                 INIT_LIST_HEAD(&pvt_pool->list);
3350                 pvt_pool->count = 0;
3351
3352                 spin_unlock(&pvt_pool->lock);
3353                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3354
3355                 kfree(multixri_pool);
3356         }
3357 }
3358
3359 /**
3360  * lpfc_online - Initialize and bring a HBA online
3361  * @phba: pointer to lpfc hba data structure.
3362  *
3363  * This routine initializes the HBA and brings a HBA online. During this
3364  * process, the management interface is blocked to prevent user space access
3365  * to the HBA interfering with the driver initialization.
3366  *
3367  * Return codes
3368  *   0 - successful
3369  *   1 - failed
3370  **/
3371 int
3372 lpfc_online(struct lpfc_hba *phba)
3373 {
3374         struct lpfc_vport *vport;
3375         struct lpfc_vport **vports;
3376         int i, error = 0;
3377         bool vpis_cleared = false;
3378
3379         if (!phba)
3380                 return 0;
3381         vport = phba->pport;
3382
3383         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3384                 return 0;
3385
3386         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3387                         "0458 Bring Adapter online\n");
3388
3389         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3390
3391         if (phba->sli_rev == LPFC_SLI_REV4) {
3392                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3393                         lpfc_unblock_mgmt_io(phba);
3394                         return 1;
3395                 }
3396                 spin_lock_irq(&phba->hbalock);
3397                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3398                         vpis_cleared = true;
3399                 spin_unlock_irq(&phba->hbalock);
3400
3401                 /* Reestablish the local initiator port.
3402                  * The offline process destroyed the previous lport.
3403                  */
3404                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3405                                 !phba->nvmet_support) {
3406                         error = lpfc_nvme_create_localport(phba->pport);
3407                         if (error)
3408                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3409                                         "6132 NVME restore reg failed "
3410                                         "on nvmei error x%x\n", error);
3411                 }
3412         } else {
3413                 lpfc_sli_queue_init(phba);
3414                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3415                         lpfc_unblock_mgmt_io(phba);
3416                         return 1;
3417                 }
3418         }
3419
3420         vports = lpfc_create_vport_work_array(phba);
3421         if (vports != NULL) {
3422                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3423                         struct Scsi_Host *shost;
3424                         shost = lpfc_shost_from_vport(vports[i]);
3425                         spin_lock_irq(shost->host_lock);
3426                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3427                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3428                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3429                         if (phba->sli_rev == LPFC_SLI_REV4) {
3430                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3431                                 if ((vpis_cleared) &&
3432                                     (vports[i]->port_type !=
3433                                         LPFC_PHYSICAL_PORT))
3434                                         vports[i]->vpi = 0;
3435                         }
3436                         spin_unlock_irq(shost->host_lock);
3437                 }
3438         }
3439         lpfc_destroy_vport_work_array(phba, vports);
3440
3441         if (phba->cfg_xri_rebalancing)
3442                 lpfc_create_multixri_pools(phba);
3443
3444         lpfc_cpuhp_add(phba);
3445
3446         lpfc_unblock_mgmt_io(phba);
3447         return 0;
3448 }
3449
3450 /**
3451  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3452  * @phba: pointer to lpfc hba data structure.
3453  *
3454  * This routine marks a HBA's management interface as not blocked. Once the
3455  * HBA's management interface is marked as not blocked, all the user space
3456  * access to the HBA, whether they are from sysfs interface or libdfc
3457  * interface will be allowed. The HBA is set to block the management interface
3458  * when the driver prepares the HBA interface for online or offline and then
3459  * set to unblock the management interface afterwards.
3460  **/
3461 void
3462 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3463 {
3464         unsigned long iflag;
3465
3466         spin_lock_irqsave(&phba->hbalock, iflag);
3467         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3468         spin_unlock_irqrestore(&phba->hbalock, iflag);
3469 }
3470
3471 /**
3472  * lpfc_offline_prep - Prepare a HBA to be brought offline
3473  * @phba: pointer to lpfc hba data structure.
3474  * @mbx_action: flag for mailbox shutdown action.
3475  *
3476  * This routine is invoked to prepare a HBA to be brought offline. It performs
3477  * unregistration login to all the nodes on all vports and flushes the mailbox
3478  * queue to make it ready to be brought offline.
3479  **/
3480 void
3481 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3482 {
3483         struct lpfc_vport *vport = phba->pport;
3484         struct lpfc_nodelist  *ndlp, *next_ndlp;
3485         struct lpfc_vport **vports;
3486         struct Scsi_Host *shost;
3487         int i;
3488
3489         if (vport->fc_flag & FC_OFFLINE_MODE)
3490                 return;
3491
3492         lpfc_block_mgmt_io(phba, mbx_action);
3493
3494         lpfc_linkdown(phba);
3495
3496         /* Issue an unreg_login to all nodes on all vports */
3497         vports = lpfc_create_vport_work_array(phba);
3498         if (vports != NULL) {
3499                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3500                         if (vports[i]->load_flag & FC_UNLOADING)
3501                                 continue;
3502                         shost = lpfc_shost_from_vport(vports[i]);
3503                         spin_lock_irq(shost->host_lock);
3504                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3505                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3506                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3507                         spin_unlock_irq(shost->host_lock);
3508
3509                         shost = lpfc_shost_from_vport(vports[i]);
3510                         list_for_each_entry_safe(ndlp, next_ndlp,
3511                                                  &vports[i]->fc_nodes,
3512                                                  nlp_listp) {
3513                                 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3514                                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3515                                         /* Driver must assume RPI is invalid for
3516                                          * any unused or inactive node.
3517                                          */
3518                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3519                                         continue;
3520                                 }
3521
3522                                 if (ndlp->nlp_type & NLP_FABRIC) {
3523                                         lpfc_disc_state_machine(vports[i], ndlp,
3524                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3525                                         lpfc_disc_state_machine(vports[i], ndlp,
3526                                                 NULL, NLP_EVT_DEVICE_RM);
3527                                 }
3528                                 spin_lock_irq(shost->host_lock);
3529                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3530                                 spin_unlock_irq(shost->host_lock);
3531                                 /*
3532                                  * Whenever an SLI4 port goes offline, free the
3533                                  * RPI. Get a new RPI when the adapter port
3534                                  * comes back online.
3535                                  */
3536                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3537                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3538                                                  LOG_NODE | LOG_DISCOVERY,
3539                                                  "0011 Free RPI x%x on "
3540                                                  "ndlp:x%px did x%x "
3541                                                  "usgmap:x%x\n",
3542                                                  ndlp->nlp_rpi, ndlp,
3543                                                  ndlp->nlp_DID,
3544                                                  ndlp->nlp_usg_map);
3545                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3546                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3547                                 }
3548                                 lpfc_unreg_rpi(vports[i], ndlp);
3549                         }
3550                 }
3551         }
3552         lpfc_destroy_vport_work_array(phba, vports);
3553
3554         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3555
3556         if (phba->wq)
3557                 flush_workqueue(phba->wq);
3558 }
3559
3560 /**
3561  * lpfc_offline - Bring a HBA offline
3562  * @phba: pointer to lpfc hba data structure.
3563  *
3564  * This routine actually brings a HBA offline. It stops all the timers
3565  * associated with the HBA, brings down the SLI layer, and eventually
3566  * marks the HBA as in offline state for the upper layer protocol.
3567  **/
3568 void
3569 lpfc_offline(struct lpfc_hba *phba)
3570 {
3571         struct Scsi_Host  *shost;
3572         struct lpfc_vport **vports;
3573         int i;
3574
3575         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3576                 return;
3577
3578         /* stop port and all timers associated with this hba */
3579         lpfc_stop_port(phba);
3580
3581         /* Tear down the local and target port registrations.  The
3582          * nvme transports need to cleanup.
3583          */
3584         lpfc_nvmet_destroy_targetport(phba);
3585         lpfc_nvme_destroy_localport(phba->pport);
3586
3587         vports = lpfc_create_vport_work_array(phba);
3588         if (vports != NULL)
3589                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3590                         lpfc_stop_vport_timers(vports[i]);
3591         lpfc_destroy_vport_work_array(phba, vports);
3592         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3593                         "0460 Bring Adapter offline\n");
3594         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3595            now.  */
3596         lpfc_sli_hba_down(phba);
3597         spin_lock_irq(&phba->hbalock);
3598         phba->work_ha = 0;
3599         spin_unlock_irq(&phba->hbalock);
3600         vports = lpfc_create_vport_work_array(phba);
3601         if (vports != NULL)
3602                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3603                         shost = lpfc_shost_from_vport(vports[i]);
3604                         spin_lock_irq(shost->host_lock);
3605                         vports[i]->work_port_events = 0;
3606                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3607                         spin_unlock_irq(shost->host_lock);
3608                 }
3609         lpfc_destroy_vport_work_array(phba, vports);
3610         __lpfc_cpuhp_remove(phba);
3611
3612         if (phba->cfg_xri_rebalancing)
3613                 lpfc_destroy_multixri_pools(phba);
3614 }
3615
3616 /**
3617  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3618  * @phba: pointer to lpfc hba data structure.
3619  *
3620  * This routine is to free all the SCSI buffers and IOCBs from the driver
3621  * list back to kernel. It is called from lpfc_pci_remove_one to free
3622  * the internal resources before the device is removed from the system.
3623  **/
3624 static void
3625 lpfc_scsi_free(struct lpfc_hba *phba)
3626 {
3627         struct lpfc_io_buf *sb, *sb_next;
3628
3629         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3630                 return;
3631
3632         spin_lock_irq(&phba->hbalock);
3633
3634         /* Release all the lpfc_scsi_bufs maintained by this host. */
3635
3636         spin_lock(&phba->scsi_buf_list_put_lock);
3637         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3638                                  list) {
3639                 list_del(&sb->list);
3640                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3641                               sb->dma_handle);
3642                 kfree(sb);
3643                 phba->total_scsi_bufs--;
3644         }
3645         spin_unlock(&phba->scsi_buf_list_put_lock);
3646
3647         spin_lock(&phba->scsi_buf_list_get_lock);
3648         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3649                                  list) {
3650                 list_del(&sb->list);
3651                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3652                               sb->dma_handle);
3653                 kfree(sb);
3654                 phba->total_scsi_bufs--;
3655         }
3656         spin_unlock(&phba->scsi_buf_list_get_lock);
3657         spin_unlock_irq(&phba->hbalock);
3658 }
3659
3660 /**
3661  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3662  * @phba: pointer to lpfc hba data structure.
3663  *
3664  * This routine is to free all the IO buffers and IOCBs from the driver
3665  * list back to kernel. It is called from lpfc_pci_remove_one to free
3666  * the internal resources before the device is removed from the system.
3667  **/
3668 void
3669 lpfc_io_free(struct lpfc_hba *phba)
3670 {
3671         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3672         struct lpfc_sli4_hdw_queue *qp;
3673         int idx;
3674
3675         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3676                 qp = &phba->sli4_hba.hdwq[idx];
3677                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3678                 spin_lock(&qp->io_buf_list_put_lock);
3679                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3680                                          &qp->lpfc_io_buf_list_put,
3681                                          list) {
3682                         list_del(&lpfc_ncmd->list);
3683                         qp->put_io_bufs--;
3684                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3685                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3686                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3687                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3688                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3689                         kfree(lpfc_ncmd);
3690                         qp->total_io_bufs--;
3691                 }
3692                 spin_unlock(&qp->io_buf_list_put_lock);
3693
3694                 spin_lock(&qp->io_buf_list_get_lock);
3695                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3696                                          &qp->lpfc_io_buf_list_get,
3697                                          list) {
3698                         list_del(&lpfc_ncmd->list);
3699                         qp->get_io_bufs--;
3700                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3701                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3702                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3703                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3704                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3705                         kfree(lpfc_ncmd);
3706                         qp->total_io_bufs--;
3707                 }
3708                 spin_unlock(&qp->io_buf_list_get_lock);
3709         }
3710 }
3711
3712 /**
3713  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3714  * @phba: pointer to lpfc hba data structure.
3715  *
3716  * This routine first calculates the sizes of the current els and allocated
3717  * scsi sgl lists, and then goes through all sgls to updates the physical
3718  * XRIs assigned due to port function reset. During port initialization, the
3719  * current els and allocated scsi sgl lists are 0s.
3720  *
3721  * Return codes
3722  *   0 - successful (for now, it always returns 0)
3723  **/
3724 int
3725 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3726 {
3727         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3728         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3729         LIST_HEAD(els_sgl_list);
3730         int rc;
3731
3732         /*
3733          * update on pci function's els xri-sgl list
3734          */
3735         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3736
3737         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3738                 /* els xri-sgl expanded */
3739                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3740                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                 "3157 ELS xri-sgl count increased from "
3742                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3743                                 els_xri_cnt);
3744                 /* allocate the additional els sgls */
3745                 for (i = 0; i < xri_cnt; i++) {
3746                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3747                                              GFP_KERNEL);
3748                         if (sglq_entry == NULL) {
3749                                 lpfc_printf_log(phba, KERN_ERR,
3750                                                 LOG_TRACE_EVENT,
3751                                                 "2562 Failure to allocate an "
3752                                                 "ELS sgl entry:%d\n", i);
3753                                 rc = -ENOMEM;
3754                                 goto out_free_mem;
3755                         }
3756                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3757                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3758                                                            &sglq_entry->phys);
3759                         if (sglq_entry->virt == NULL) {
3760                                 kfree(sglq_entry);
3761                                 lpfc_printf_log(phba, KERN_ERR,
3762                                                 LOG_TRACE_EVENT,
3763                                                 "2563 Failure to allocate an "
3764                                                 "ELS mbuf:%d\n", i);
3765                                 rc = -ENOMEM;
3766                                 goto out_free_mem;
3767                         }
3768                         sglq_entry->sgl = sglq_entry->virt;
3769                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3770                         sglq_entry->state = SGL_FREED;
3771                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3772                 }
3773                 spin_lock_irq(&phba->hbalock);
3774                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3775                 list_splice_init(&els_sgl_list,
3776                                  &phba->sli4_hba.lpfc_els_sgl_list);
3777                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3778                 spin_unlock_irq(&phba->hbalock);
3779         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3780                 /* els xri-sgl shrinked */
3781                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3782                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3783                                 "3158 ELS xri-sgl count decreased from "
3784                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3785                                 els_xri_cnt);
3786                 spin_lock_irq(&phba->hbalock);
3787                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3788                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3789                                  &els_sgl_list);
3790                 /* release extra els sgls from list */
3791                 for (i = 0; i < xri_cnt; i++) {
3792                         list_remove_head(&els_sgl_list,
3793                                          sglq_entry, struct lpfc_sglq, list);
3794                         if (sglq_entry) {
3795                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3796                                                  sglq_entry->phys);
3797                                 kfree(sglq_entry);
3798                         }
3799                 }
3800                 list_splice_init(&els_sgl_list,
3801                                  &phba->sli4_hba.lpfc_els_sgl_list);
3802                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3803                 spin_unlock_irq(&phba->hbalock);
3804         } else
3805                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3806                                 "3163 ELS xri-sgl count unchanged: %d\n",
3807                                 els_xri_cnt);
3808         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3809
3810         /* update xris to els sgls on the list */
3811         sglq_entry = NULL;
3812         sglq_entry_next = NULL;
3813         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3814                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3815                 lxri = lpfc_sli4_next_xritag(phba);
3816                 if (lxri == NO_XRI) {
3817                         lpfc_printf_log(phba, KERN_ERR,
3818                                         LOG_TRACE_EVENT,
3819                                         "2400 Failed to allocate xri for "
3820                                         "ELS sgl\n");
3821                         rc = -ENOMEM;
3822                         goto out_free_mem;
3823                 }
3824                 sglq_entry->sli4_lxritag = lxri;
3825                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3826         }
3827         return 0;
3828
3829 out_free_mem:
3830         lpfc_free_els_sgl_list(phba);
3831         return rc;
3832 }
3833
3834 /**
3835  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3836  * @phba: pointer to lpfc hba data structure.
3837  *
3838  * This routine first calculates the sizes of the current els and allocated
3839  * scsi sgl lists, and then goes through all sgls to updates the physical
3840  * XRIs assigned due to port function reset. During port initialization, the
3841  * current els and allocated scsi sgl lists are 0s.
3842  *
3843  * Return codes
3844  *   0 - successful (for now, it always returns 0)
3845  **/
3846 int
3847 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3848 {
3849         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3850         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3851         uint16_t nvmet_xri_cnt;
3852         LIST_HEAD(nvmet_sgl_list);
3853         int rc;
3854
3855         /*
3856          * update on pci function's nvmet xri-sgl list
3857          */
3858         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3859
3860         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3861         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3862         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3863                 /* els xri-sgl expanded */
3864                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3865                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3866                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3867                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3868                 /* allocate the additional nvmet sgls */
3869                 for (i = 0; i < xri_cnt; i++) {
3870                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3871                                              GFP_KERNEL);
3872                         if (sglq_entry == NULL) {
3873                                 lpfc_printf_log(phba, KERN_ERR,
3874                                                 LOG_TRACE_EVENT,
3875                                                 "6303 Failure to allocate an "
3876                                                 "NVMET sgl entry:%d\n", i);
3877                                 rc = -ENOMEM;
3878                                 goto out_free_mem;
3879                         }
3880                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3881                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3882                                                            &sglq_entry->phys);
3883                         if (sglq_entry->virt == NULL) {
3884                                 kfree(sglq_entry);
3885                                 lpfc_printf_log(phba, KERN_ERR,
3886                                                 LOG_TRACE_EVENT,
3887                                                 "6304 Failure to allocate an "
3888                                                 "NVMET buf:%d\n", i);
3889                                 rc = -ENOMEM;
3890                                 goto out_free_mem;
3891                         }
3892                         sglq_entry->sgl = sglq_entry->virt;
3893                         memset(sglq_entry->sgl, 0,
3894                                phba->cfg_sg_dma_buf_size);
3895                         sglq_entry->state = SGL_FREED;
3896                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3897                 }
3898                 spin_lock_irq(&phba->hbalock);
3899                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3900                 list_splice_init(&nvmet_sgl_list,
3901                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3902                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3903                 spin_unlock_irq(&phba->hbalock);
3904         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3905                 /* nvmet xri-sgl shrunk */
3906                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3907                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3908                                 "6305 NVMET xri-sgl count decreased from "
3909                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3910                                 nvmet_xri_cnt);
3911                 spin_lock_irq(&phba->hbalock);
3912                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3913                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3914                                  &nvmet_sgl_list);
3915                 /* release extra nvmet sgls from list */
3916                 for (i = 0; i < xri_cnt; i++) {
3917                         list_remove_head(&nvmet_sgl_list,
3918                                          sglq_entry, struct lpfc_sglq, list);
3919                         if (sglq_entry) {
3920                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3921                                                     sglq_entry->phys);
3922                                 kfree(sglq_entry);
3923                         }
3924                 }
3925                 list_splice_init(&nvmet_sgl_list,
3926                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3927                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3928                 spin_unlock_irq(&phba->hbalock);
3929         } else
3930                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3931                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3932                                 nvmet_xri_cnt);
3933         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3934
3935         /* update xris to nvmet sgls on the list */
3936         sglq_entry = NULL;
3937         sglq_entry_next = NULL;
3938         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3939                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3940                 lxri = lpfc_sli4_next_xritag(phba);
3941                 if (lxri == NO_XRI) {
3942                         lpfc_printf_log(phba, KERN_ERR,
3943                                         LOG_TRACE_EVENT,
3944                                         "6307 Failed to allocate xri for "
3945                                         "NVMET sgl\n");
3946                         rc = -ENOMEM;
3947                         goto out_free_mem;
3948                 }
3949                 sglq_entry->sli4_lxritag = lxri;
3950                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3951         }
3952         return 0;
3953
3954 out_free_mem:
3955         lpfc_free_nvmet_sgl_list(phba);
3956         return rc;
3957 }
3958
3959 int
3960 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3961 {
3962         LIST_HEAD(blist);
3963         struct lpfc_sli4_hdw_queue *qp;
3964         struct lpfc_io_buf *lpfc_cmd;
3965         struct lpfc_io_buf *iobufp, *prev_iobufp;
3966         int idx, cnt, xri, inserted;
3967
3968         cnt = 0;
3969         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3970                 qp = &phba->sli4_hba.hdwq[idx];
3971                 spin_lock_irq(&qp->io_buf_list_get_lock);
3972                 spin_lock(&qp->io_buf_list_put_lock);
3973
3974                 /* Take everything off the get and put lists */
3975                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3976                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3977                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3978                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3979                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3980                 qp->get_io_bufs = 0;
3981                 qp->put_io_bufs = 0;
3982                 qp->total_io_bufs = 0;
3983                 spin_unlock(&qp->io_buf_list_put_lock);
3984                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3985         }
3986
3987         /*
3988          * Take IO buffers off blist and put on cbuf sorted by XRI.
3989          * This is because POST_SGL takes a sequential range of XRIs
3990          * to post to the firmware.
3991          */
3992         for (idx = 0; idx < cnt; idx++) {
3993                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3994                 if (!lpfc_cmd)
3995                         return cnt;
3996                 if (idx == 0) {
3997                         list_add_tail(&lpfc_cmd->list, cbuf);
3998                         continue;
3999                 }
4000                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4001                 inserted = 0;
4002                 prev_iobufp = NULL;
4003                 list_for_each_entry(iobufp, cbuf, list) {
4004                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4005                                 if (prev_iobufp)
4006                                         list_add(&lpfc_cmd->list,
4007                                                  &prev_iobufp->list);
4008                                 else
4009                                         list_add(&lpfc_cmd->list, cbuf);
4010                                 inserted = 1;
4011                                 break;
4012                         }
4013                         prev_iobufp = iobufp;
4014                 }
4015                 if (!inserted)
4016                         list_add_tail(&lpfc_cmd->list, cbuf);
4017         }
4018         return cnt;
4019 }
4020
4021 int
4022 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4023 {
4024         struct lpfc_sli4_hdw_queue *qp;
4025         struct lpfc_io_buf *lpfc_cmd;
4026         int idx, cnt;
4027
4028         qp = phba->sli4_hba.hdwq;
4029         cnt = 0;
4030         while (!list_empty(cbuf)) {
4031                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4032                         list_remove_head(cbuf, lpfc_cmd,
4033                                          struct lpfc_io_buf, list);
4034                         if (!lpfc_cmd)
4035                                 return cnt;
4036                         cnt++;
4037                         qp = &phba->sli4_hba.hdwq[idx];
4038                         lpfc_cmd->hdwq_no = idx;
4039                         lpfc_cmd->hdwq = qp;
4040                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4041                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4042                         spin_lock(&qp->io_buf_list_put_lock);
4043                         list_add_tail(&lpfc_cmd->list,
4044                                       &qp->lpfc_io_buf_list_put);
4045                         qp->put_io_bufs++;
4046                         qp->total_io_bufs++;
4047                         spin_unlock(&qp->io_buf_list_put_lock);
4048                 }
4049         }
4050         return cnt;
4051 }
4052
4053 /**
4054  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4055  * @phba: pointer to lpfc hba data structure.
4056  *
4057  * This routine first calculates the sizes of the current els and allocated
4058  * scsi sgl lists, and then goes through all sgls to updates the physical
4059  * XRIs assigned due to port function reset. During port initialization, the
4060  * current els and allocated scsi sgl lists are 0s.
4061  *
4062  * Return codes
4063  *   0 - successful (for now, it always returns 0)
4064  **/
4065 int
4066 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4067 {
4068         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4069         uint16_t i, lxri, els_xri_cnt;
4070         uint16_t io_xri_cnt, io_xri_max;
4071         LIST_HEAD(io_sgl_list);
4072         int rc, cnt;
4073
4074         /*
4075          * update on pci function's allocated nvme xri-sgl list
4076          */
4077
4078         /* maximum number of xris available for nvme buffers */
4079         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4080         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4081         phba->sli4_hba.io_xri_max = io_xri_max;
4082
4083         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4084                         "6074 Current allocated XRI sgl count:%d, "
4085                         "maximum XRI count:%d\n",
4086                         phba->sli4_hba.io_xri_cnt,
4087                         phba->sli4_hba.io_xri_max);
4088
4089         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4090
4091         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4092                 /* max nvme xri shrunk below the allocated nvme buffers */
4093                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4094                                         phba->sli4_hba.io_xri_max;
4095                 /* release the extra allocated nvme buffers */
4096                 for (i = 0; i < io_xri_cnt; i++) {
4097                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4098                                          struct lpfc_io_buf, list);
4099                         if (lpfc_ncmd) {
4100                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4101                                               lpfc_ncmd->data,
4102                                               lpfc_ncmd->dma_handle);
4103                                 kfree(lpfc_ncmd);
4104                         }
4105                 }
4106                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4107         }
4108
4109         /* update xris associated to remaining allocated nvme buffers */
4110         lpfc_ncmd = NULL;
4111         lpfc_ncmd_next = NULL;
4112         phba->sli4_hba.io_xri_cnt = cnt;
4113         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4114                                  &io_sgl_list, list) {
4115                 lxri = lpfc_sli4_next_xritag(phba);
4116                 if (lxri == NO_XRI) {
4117                         lpfc_printf_log(phba, KERN_ERR,
4118                                         LOG_TRACE_EVENT,
4119                                         "6075 Failed to allocate xri for "
4120                                         "nvme buffer\n");
4121                         rc = -ENOMEM;
4122                         goto out_free_mem;
4123                 }
4124                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4125                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4126         }
4127         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4128         return 0;
4129
4130 out_free_mem:
4131         lpfc_io_free(phba);
4132         return rc;
4133 }
4134
4135 /**
4136  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4137  * @phba: Pointer to lpfc hba data structure.
4138  * @num_to_alloc: The requested number of buffers to allocate.
4139  *
4140  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4141  * the nvme buffer contains all the necessary information needed to initiate
4142  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4143  * them on a list, it post them to the port by using SGL block post.
4144  *
4145  * Return codes:
4146  *   int - number of IO buffers that were allocated and posted.
4147  *   0 = failure, less than num_to_alloc is a partial failure.
4148  **/
4149 int
4150 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4151 {
4152         struct lpfc_io_buf *lpfc_ncmd;
4153         struct lpfc_iocbq *pwqeq;
4154         uint16_t iotag, lxri = 0;
4155         int bcnt, num_posted;
4156         LIST_HEAD(prep_nblist);
4157         LIST_HEAD(post_nblist);
4158         LIST_HEAD(nvme_nblist);
4159
4160         phba->sli4_hba.io_xri_cnt = 0;
4161         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4162                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4163                 if (!lpfc_ncmd)
4164                         break;
4165                 /*
4166                  * Get memory from the pci pool to map the virt space to
4167                  * pci bus space for an I/O. The DMA buffer includes the
4168                  * number of SGE's necessary to support the sg_tablesize.
4169                  */
4170                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4171                                                   GFP_KERNEL,
4172                                                   &lpfc_ncmd->dma_handle);
4173                 if (!lpfc_ncmd->data) {
4174                         kfree(lpfc_ncmd);
4175                         break;
4176                 }
4177
4178                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4179                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4180                 } else {
4181                         /*
4182                          * 4K Page alignment is CRITICAL to BlockGuard, double
4183                          * check to be sure.
4184                          */
4185                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4186                             (((unsigned long)(lpfc_ncmd->data) &
4187                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4188                                 lpfc_printf_log(phba, KERN_ERR,
4189                                                 LOG_TRACE_EVENT,
4190                                                 "3369 Memory alignment err: "
4191                                                 "addr=%lx\n",
4192                                                 (unsigned long)lpfc_ncmd->data);
4193                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4194                                               lpfc_ncmd->data,
4195                                               lpfc_ncmd->dma_handle);
4196                                 kfree(lpfc_ncmd);
4197                                 break;
4198                         }
4199                 }
4200
4201                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4202
4203                 lxri = lpfc_sli4_next_xritag(phba);
4204                 if (lxri == NO_XRI) {
4205                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4206                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4207                         kfree(lpfc_ncmd);
4208                         break;
4209                 }
4210                 pwqeq = &lpfc_ncmd->cur_iocbq;
4211
4212                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4213                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4214                 if (iotag == 0) {
4215                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4216                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4217                         kfree(lpfc_ncmd);
4218                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4219                                         "6121 Failed to allocate IOTAG for"
4220                                         " XRI:0x%x\n", lxri);
4221                         lpfc_sli4_free_xri(phba, lxri);
4222                         break;
4223                 }
4224                 pwqeq->sli4_lxritag = lxri;
4225                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4226                 pwqeq->context1 = lpfc_ncmd;
4227
4228                 /* Initialize local short-hand pointers. */
4229                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4230                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4231                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4232                 spin_lock_init(&lpfc_ncmd->buf_lock);
4233
4234                 /* add the nvme buffer to a post list */
4235                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4236                 phba->sli4_hba.io_xri_cnt++;
4237         }
4238         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4239                         "6114 Allocate %d out of %d requested new NVME "
4240                         "buffers\n", bcnt, num_to_alloc);
4241
4242         /* post the list of nvme buffer sgls to port if available */
4243         if (!list_empty(&post_nblist))
4244                 num_posted = lpfc_sli4_post_io_sgl_list(
4245                                 phba, &post_nblist, bcnt);
4246         else
4247                 num_posted = 0;
4248
4249         return num_posted;
4250 }
4251
4252 static uint64_t
4253 lpfc_get_wwpn(struct lpfc_hba *phba)
4254 {
4255         uint64_t wwn;
4256         int rc;
4257         LPFC_MBOXQ_t *mboxq;
4258         MAILBOX_t *mb;
4259
4260         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4261                                                 GFP_KERNEL);
4262         if (!mboxq)
4263                 return (uint64_t)-1;
4264
4265         /* First get WWN of HBA instance */
4266         lpfc_read_nv(phba, mboxq);
4267         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4268         if (rc != MBX_SUCCESS) {
4269                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4270                                 "6019 Mailbox failed , mbxCmd x%x "
4271                                 "READ_NV, mbxStatus x%x\n",
4272                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4273                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4274                 mempool_free(mboxq, phba->mbox_mem_pool);
4275                 return (uint64_t) -1;
4276         }
4277         mb = &mboxq->u.mb;
4278         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4279         /* wwn is WWPN of HBA instance */
4280         mempool_free(mboxq, phba->mbox_mem_pool);
4281         if (phba->sli_rev == LPFC_SLI_REV4)
4282                 return be64_to_cpu(wwn);
4283         else
4284                 return rol64(wwn, 32);
4285 }
4286
4287 /**
4288  * lpfc_create_port - Create an FC port
4289  * @phba: pointer to lpfc hba data structure.
4290  * @instance: a unique integer ID to this FC port.
4291  * @dev: pointer to the device data structure.
4292  *
4293  * This routine creates a FC port for the upper layer protocol. The FC port
4294  * can be created on top of either a physical port or a virtual port provided
4295  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4296  * and associates the FC port created before adding the shost into the SCSI
4297  * layer.
4298  *
4299  * Return codes
4300  *   @vport - pointer to the virtual N_Port data structure.
4301  *   NULL - port create failed.
4302  **/
4303 struct lpfc_vport *
4304 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4305 {
4306         struct lpfc_vport *vport;
4307         struct Scsi_Host  *shost = NULL;
4308         struct scsi_host_template *template;
4309         int error = 0;
4310         int i;
4311         uint64_t wwn;
4312         bool use_no_reset_hba = false;
4313         int rc;
4314
4315         if (lpfc_no_hba_reset_cnt) {
4316                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4317                     dev == &phba->pcidev->dev) {
4318                         /* Reset the port first */
4319                         lpfc_sli_brdrestart(phba);
4320                         rc = lpfc_sli_chipset_init(phba);
4321                         if (rc)
4322                                 return NULL;
4323                 }
4324                 wwn = lpfc_get_wwpn(phba);
4325         }
4326
4327         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4328                 if (wwn == lpfc_no_hba_reset[i]) {
4329                         lpfc_printf_log(phba, KERN_ERR,
4330                                         LOG_TRACE_EVENT,
4331                                         "6020 Setting use_no_reset port=%llx\n",
4332                                         wwn);
4333                         use_no_reset_hba = true;
4334                         break;
4335                 }
4336         }
4337
4338         /* Seed template for SCSI host registration */
4339         if (dev == &phba->pcidev->dev) {
4340                 template = &phba->port_template;
4341
4342                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4343                         /* Seed physical port template */
4344                         memcpy(template, &lpfc_template, sizeof(*template));
4345
4346                         if (use_no_reset_hba) {
4347                                 /* template is for a no reset SCSI Host */
4348                                 template->max_sectors = 0xffff;
4349                                 template->eh_host_reset_handler = NULL;
4350                         }
4351
4352                         /* Template for all vports this physical port creates */
4353                         memcpy(&phba->vport_template, &lpfc_template,
4354                                sizeof(*template));
4355                         phba->vport_template.max_sectors = 0xffff;
4356                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4357                         phba->vport_template.eh_bus_reset_handler = NULL;
4358                         phba->vport_template.eh_host_reset_handler = NULL;
4359                         phba->vport_template.vendor_id = 0;
4360
4361                         /* Initialize the host templates with updated value */
4362                         if (phba->sli_rev == LPFC_SLI_REV4) {
4363                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4364                                 phba->vport_template.sg_tablesize =
4365                                         phba->cfg_scsi_seg_cnt;
4366                         } else {
4367                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4368                                 phba->vport_template.sg_tablesize =
4369                                         phba->cfg_sg_seg_cnt;
4370                         }
4371
4372                 } else {
4373                         /* NVMET is for physical port only */
4374                         memcpy(template, &lpfc_template_nvme,
4375                                sizeof(*template));
4376                 }
4377         } else {
4378                 template = &phba->vport_template;
4379         }
4380
4381         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4382         if (!shost)
4383                 goto out;
4384
4385         vport = (struct lpfc_vport *) shost->hostdata;
4386         vport->phba = phba;
4387         vport->load_flag |= FC_LOADING;
4388         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4389         vport->fc_rscn_flush = 0;
4390         lpfc_get_vport_cfgparam(vport);
4391
4392         /* Adjust value in vport */
4393         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4394
4395         shost->unique_id = instance;
4396         shost->max_id = LPFC_MAX_TARGET;
4397         shost->max_lun = vport->cfg_max_luns;
4398         shost->this_id = -1;
4399         shost->max_cmd_len = 16;
4400
4401         if (phba->sli_rev == LPFC_SLI_REV4) {
4402                 if (!phba->cfg_fcp_mq_threshold ||
4403                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4404                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4405
4406                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4407                                             phba->cfg_fcp_mq_threshold);
4408
4409                 shost->dma_boundary =
4410                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4411
4412                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4413                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4414                 else
4415                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4416         } else
4417                 /* SLI-3 has a limited number of hardware queues (3),
4418                  * thus there is only one for FCP processing.
4419                  */
4420                 shost->nr_hw_queues = 1;
4421
4422         /*
4423          * Set initial can_queue value since 0 is no longer supported and
4424          * scsi_add_host will fail. This will be adjusted later based on the
4425          * max xri value determined in hba setup.
4426          */
4427         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4428         if (dev != &phba->pcidev->dev) {
4429                 shost->transportt = lpfc_vport_transport_template;
4430                 vport->port_type = LPFC_NPIV_PORT;
4431         } else {
4432                 shost->transportt = lpfc_transport_template;
4433                 vport->port_type = LPFC_PHYSICAL_PORT;
4434         }
4435
4436         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4437                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4438                         "SEGcnt %d/%d\n",
4439                         vport->port_type, shost->sg_tablesize,
4440                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4441
4442         /* Initialize all internally managed lists. */
4443         INIT_LIST_HEAD(&vport->fc_nodes);
4444         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4445         spin_lock_init(&vport->work_port_lock);
4446
4447         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4448
4449         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4450
4451         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4452
4453         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4454                 lpfc_setup_bg(phba, shost);
4455
4456         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4457         if (error)
4458                 goto out_put_shost;
4459
4460         spin_lock_irq(&phba->port_list_lock);
4461         list_add_tail(&vport->listentry, &phba->port_list);
4462         spin_unlock_irq(&phba->port_list_lock);
4463         return vport;
4464
4465 out_put_shost:
4466         scsi_host_put(shost);
4467 out:
4468         return NULL;
4469 }
4470
4471 /**
4472  * destroy_port -  destroy an FC port
4473  * @vport: pointer to an lpfc virtual N_Port data structure.
4474  *
4475  * This routine destroys a FC port from the upper layer protocol. All the
4476  * resources associated with the port are released.
4477  **/
4478 void
4479 destroy_port(struct lpfc_vport *vport)
4480 {
4481         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4482         struct lpfc_hba  *phba = vport->phba;
4483
4484         lpfc_debugfs_terminate(vport);
4485         fc_remove_host(shost);
4486         scsi_remove_host(shost);
4487
4488         spin_lock_irq(&phba->port_list_lock);
4489         list_del_init(&vport->listentry);
4490         spin_unlock_irq(&phba->port_list_lock);
4491
4492         lpfc_cleanup(vport);
4493         return;
4494 }
4495
4496 /**
4497  * lpfc_get_instance - Get a unique integer ID
4498  *
4499  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4500  * uses the kernel idr facility to perform the task.
4501  *
4502  * Return codes:
4503  *   instance - a unique integer ID allocated as the new instance.
4504  *   -1 - lpfc get instance failed.
4505  **/
4506 int
4507 lpfc_get_instance(void)
4508 {
4509         int ret;
4510
4511         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4512         return ret < 0 ? -1 : ret;
4513 }
4514
4515 /**
4516  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4517  * @shost: pointer to SCSI host data structure.
4518  * @time: elapsed time of the scan in jiffies.
4519  *
4520  * This routine is called by the SCSI layer with a SCSI host to determine
4521  * whether the scan host is finished.
4522  *
4523  * Note: there is no scan_start function as adapter initialization will have
4524  * asynchronously kicked off the link initialization.
4525  *
4526  * Return codes
4527  *   0 - SCSI host scan is not over yet.
4528  *   1 - SCSI host scan is over.
4529  **/
4530 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4531 {
4532         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4533         struct lpfc_hba   *phba = vport->phba;
4534         int stat = 0;
4535
4536         spin_lock_irq(shost->host_lock);
4537
4538         if (vport->load_flag & FC_UNLOADING) {
4539                 stat = 1;
4540                 goto finished;
4541         }
4542         if (time >= msecs_to_jiffies(30 * 1000)) {
4543                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4544                                 "0461 Scanning longer than 30 "
4545                                 "seconds.  Continuing initialization\n");
4546                 stat = 1;
4547                 goto finished;
4548         }
4549         if (time >= msecs_to_jiffies(15 * 1000) &&
4550             phba->link_state <= LPFC_LINK_DOWN) {
4551                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4552                                 "0465 Link down longer than 15 "
4553                                 "seconds.  Continuing initialization\n");
4554                 stat = 1;
4555                 goto finished;
4556         }
4557
4558         if (vport->port_state != LPFC_VPORT_READY)
4559                 goto finished;
4560         if (vport->num_disc_nodes || vport->fc_prli_sent)
4561                 goto finished;
4562         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4563                 goto finished;
4564         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4565                 goto finished;
4566
4567         stat = 1;
4568
4569 finished:
4570         spin_unlock_irq(shost->host_lock);
4571         return stat;
4572 }
4573
4574 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4575 {
4576         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4577         struct lpfc_hba   *phba = vport->phba;
4578
4579         fc_host_supported_speeds(shost) = 0;
4580         /*
4581          * Avoid reporting supported link speed for FCoE as it can't be
4582          * controlled via FCoE.
4583          */
4584         if (phba->hba_flag & HBA_FCOE_MODE)
4585                 return;
4586
4587         if (phba->lmt & LMT_128Gb)
4588                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4589         if (phba->lmt & LMT_64Gb)
4590                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4591         if (phba->lmt & LMT_32Gb)
4592                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4593         if (phba->lmt & LMT_16Gb)
4594                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4595         if (phba->lmt & LMT_10Gb)
4596                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4597         if (phba->lmt & LMT_8Gb)
4598                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4599         if (phba->lmt & LMT_4Gb)
4600                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4601         if (phba->lmt & LMT_2Gb)
4602                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4603         if (phba->lmt & LMT_1Gb)
4604                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4605 }
4606
4607 /**
4608  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4609  * @shost: pointer to SCSI host data structure.
4610  *
4611  * This routine initializes a given SCSI host attributes on a FC port. The
4612  * SCSI host can be either on top of a physical port or a virtual port.
4613  **/
4614 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4615 {
4616         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4617         struct lpfc_hba   *phba = vport->phba;
4618         /*
4619          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4620          */
4621
4622         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4623         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4624         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4625
4626         memset(fc_host_supported_fc4s(shost), 0,
4627                sizeof(fc_host_supported_fc4s(shost)));
4628         fc_host_supported_fc4s(shost)[2] = 1;
4629         fc_host_supported_fc4s(shost)[7] = 1;
4630
4631         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4632                                  sizeof fc_host_symbolic_name(shost));
4633
4634         lpfc_host_supported_speeds_set(shost);
4635
4636         fc_host_maxframe_size(shost) =
4637                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4638                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4639
4640         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4641
4642         /* This value is also unchanging */
4643         memset(fc_host_active_fc4s(shost), 0,
4644                sizeof(fc_host_active_fc4s(shost)));
4645         fc_host_active_fc4s(shost)[2] = 1;
4646         fc_host_active_fc4s(shost)[7] = 1;
4647
4648         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4649         spin_lock_irq(shost->host_lock);
4650         vport->load_flag &= ~FC_LOADING;
4651         spin_unlock_irq(shost->host_lock);
4652 }
4653
4654 /**
4655  * lpfc_stop_port_s3 - Stop SLI3 device port
4656  * @phba: pointer to lpfc hba data structure.
4657  *
4658  * This routine is invoked to stop an SLI3 device port, it stops the device
4659  * from generating interrupts and stops the device driver's timers for the
4660  * device.
4661  **/
4662 static void
4663 lpfc_stop_port_s3(struct lpfc_hba *phba)
4664 {
4665         /* Clear all interrupt enable conditions */
4666         writel(0, phba->HCregaddr);
4667         readl(phba->HCregaddr); /* flush */
4668         /* Clear all pending interrupts */
4669         writel(0xffffffff, phba->HAregaddr);
4670         readl(phba->HAregaddr); /* flush */
4671
4672         /* Reset some HBA SLI setup states */
4673         lpfc_stop_hba_timers(phba);
4674         phba->pport->work_port_events = 0;
4675 }
4676
4677 /**
4678  * lpfc_stop_port_s4 - Stop SLI4 device port
4679  * @phba: pointer to lpfc hba data structure.
4680  *
4681  * This routine is invoked to stop an SLI4 device port, it stops the device
4682  * from generating interrupts and stops the device driver's timers for the
4683  * device.
4684  **/
4685 static void
4686 lpfc_stop_port_s4(struct lpfc_hba *phba)
4687 {
4688         /* Reset some HBA SLI4 setup states */
4689         lpfc_stop_hba_timers(phba);
4690         if (phba->pport)
4691                 phba->pport->work_port_events = 0;
4692         phba->sli4_hba.intr_enable = 0;
4693 }
4694
4695 /**
4696  * lpfc_stop_port - Wrapper function for stopping hba port
4697  * @phba: Pointer to HBA context object.
4698  *
4699  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4700  * the API jump table function pointer from the lpfc_hba struct.
4701  **/
4702 void
4703 lpfc_stop_port(struct lpfc_hba *phba)
4704 {
4705         phba->lpfc_stop_port(phba);
4706
4707         if (phba->wq)
4708                 flush_workqueue(phba->wq);
4709 }
4710
4711 /**
4712  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4713  * @phba: Pointer to hba for which this call is being executed.
4714  *
4715  * This routine starts the timer waiting for the FCF rediscovery to complete.
4716  **/
4717 void
4718 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4719 {
4720         unsigned long fcf_redisc_wait_tmo =
4721                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4722         /* Start fcf rediscovery wait period timer */
4723         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4724         spin_lock_irq(&phba->hbalock);
4725         /* Allow action to new fcf asynchronous event */
4726         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4727         /* Mark the FCF rediscovery pending state */
4728         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4729         spin_unlock_irq(&phba->hbalock);
4730 }
4731
4732 /**
4733  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4734  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4735  *
4736  * This routine is invoked when waiting for FCF table rediscover has been
4737  * timed out. If new FCF record(s) has (have) been discovered during the
4738  * wait period, a new FCF event shall be added to the FCOE async event
4739  * list, and then worker thread shall be waked up for processing from the
4740  * worker thread context.
4741  **/
4742 static void
4743 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4744 {
4745         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4746
4747         /* Don't send FCF rediscovery event if timer cancelled */
4748         spin_lock_irq(&phba->hbalock);
4749         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4750                 spin_unlock_irq(&phba->hbalock);
4751                 return;
4752         }
4753         /* Clear FCF rediscovery timer pending flag */
4754         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4755         /* FCF rediscovery event to worker thread */
4756         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4757         spin_unlock_irq(&phba->hbalock);
4758         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4759                         "2776 FCF rediscover quiescent timer expired\n");
4760         /* wake up worker thread */
4761         lpfc_worker_wake_up(phba);
4762 }
4763
4764 /**
4765  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4766  * @phba: pointer to lpfc hba data structure.
4767  * @acqe_link: pointer to the async link completion queue entry.
4768  *
4769  * This routine is to parse the SLI4 link-attention link fault code.
4770  **/
4771 static void
4772 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4773                            struct lpfc_acqe_link *acqe_link)
4774 {
4775         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4776         case LPFC_ASYNC_LINK_FAULT_NONE:
4777         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4778         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4779         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4780                 break;
4781         default:
4782                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4783                                 "0398 Unknown link fault code: x%x\n",
4784                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4785                 break;
4786         }
4787 }
4788
4789 /**
4790  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4791  * @phba: pointer to lpfc hba data structure.
4792  * @acqe_link: pointer to the async link completion queue entry.
4793  *
4794  * This routine is to parse the SLI4 link attention type and translate it
4795  * into the base driver's link attention type coding.
4796  *
4797  * Return: Link attention type in terms of base driver's coding.
4798  **/
4799 static uint8_t
4800 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4801                           struct lpfc_acqe_link *acqe_link)
4802 {
4803         uint8_t att_type;
4804
4805         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4806         case LPFC_ASYNC_LINK_STATUS_DOWN:
4807         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4808                 att_type = LPFC_ATT_LINK_DOWN;
4809                 break;
4810         case LPFC_ASYNC_LINK_STATUS_UP:
4811                 /* Ignore physical link up events - wait for logical link up */
4812                 att_type = LPFC_ATT_RESERVED;
4813                 break;
4814         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4815                 att_type = LPFC_ATT_LINK_UP;
4816                 break;
4817         default:
4818                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4819                                 "0399 Invalid link attention type: x%x\n",
4820                                 bf_get(lpfc_acqe_link_status, acqe_link));
4821                 att_type = LPFC_ATT_RESERVED;
4822                 break;
4823         }
4824         return att_type;
4825 }
4826
4827 /**
4828  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4829  * @phba: pointer to lpfc hba data structure.
4830  *
4831  * This routine is to get an SLI3 FC port's link speed in Mbps.
4832  *
4833  * Return: link speed in terms of Mbps.
4834  **/
4835 uint32_t
4836 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4837 {
4838         uint32_t link_speed;
4839
4840         if (!lpfc_is_link_up(phba))
4841                 return 0;
4842
4843         if (phba->sli_rev <= LPFC_SLI_REV3) {
4844                 switch (phba->fc_linkspeed) {
4845                 case LPFC_LINK_SPEED_1GHZ:
4846                         link_speed = 1000;
4847                         break;
4848                 case LPFC_LINK_SPEED_2GHZ:
4849                         link_speed = 2000;
4850                         break;
4851                 case LPFC_LINK_SPEED_4GHZ:
4852                         link_speed = 4000;
4853                         break;
4854                 case LPFC_LINK_SPEED_8GHZ:
4855                         link_speed = 8000;
4856                         break;
4857                 case LPFC_LINK_SPEED_10GHZ:
4858                         link_speed = 10000;
4859                         break;
4860                 case LPFC_LINK_SPEED_16GHZ:
4861                         link_speed = 16000;
4862                         break;
4863                 default:
4864                         link_speed = 0;
4865                 }
4866         } else {
4867                 if (phba->sli4_hba.link_state.logical_speed)
4868                         link_speed =
4869                               phba->sli4_hba.link_state.logical_speed;
4870                 else
4871                         link_speed = phba->sli4_hba.link_state.speed;
4872         }
4873         return link_speed;
4874 }
4875
4876 /**
4877  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4878  * @phba: pointer to lpfc hba data structure.
4879  * @evt_code: asynchronous event code.
4880  * @speed_code: asynchronous event link speed code.
4881  *
4882  * This routine is to parse the giving SLI4 async event link speed code into
4883  * value of Mbps for the link speed.
4884  *
4885  * Return: link speed in terms of Mbps.
4886  **/
4887 static uint32_t
4888 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4889                            uint8_t speed_code)
4890 {
4891         uint32_t port_speed;
4892
4893         switch (evt_code) {
4894         case LPFC_TRAILER_CODE_LINK:
4895                 switch (speed_code) {
4896                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4897                         port_speed = 0;
4898                         break;
4899                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4900                         port_speed = 10;
4901                         break;
4902                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4903                         port_speed = 100;
4904                         break;
4905                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4906                         port_speed = 1000;
4907                         break;
4908                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4909                         port_speed = 10000;
4910                         break;
4911                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4912                         port_speed = 20000;
4913                         break;
4914                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4915                         port_speed = 25000;
4916                         break;
4917                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4918                         port_speed = 40000;
4919                         break;
4920                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
4921                         port_speed = 100000;
4922                         break;
4923                 default:
4924                         port_speed = 0;
4925                 }
4926                 break;
4927         case LPFC_TRAILER_CODE_FC:
4928                 switch (speed_code) {
4929                 case LPFC_FC_LA_SPEED_UNKNOWN:
4930                         port_speed = 0;
4931                         break;
4932                 case LPFC_FC_LA_SPEED_1G:
4933                         port_speed = 1000;
4934                         break;
4935                 case LPFC_FC_LA_SPEED_2G:
4936                         port_speed = 2000;
4937                         break;
4938                 case LPFC_FC_LA_SPEED_4G:
4939                         port_speed = 4000;
4940                         break;
4941                 case LPFC_FC_LA_SPEED_8G:
4942                         port_speed = 8000;
4943                         break;
4944                 case LPFC_FC_LA_SPEED_10G:
4945                         port_speed = 10000;
4946                         break;
4947                 case LPFC_FC_LA_SPEED_16G:
4948                         port_speed = 16000;
4949                         break;
4950                 case LPFC_FC_LA_SPEED_32G:
4951                         port_speed = 32000;
4952                         break;
4953                 case LPFC_FC_LA_SPEED_64G:
4954                         port_speed = 64000;
4955                         break;
4956                 case LPFC_FC_LA_SPEED_128G:
4957                         port_speed = 128000;
4958                         break;
4959                 default:
4960                         port_speed = 0;
4961                 }
4962                 break;
4963         default:
4964                 port_speed = 0;
4965         }
4966         return port_speed;
4967 }
4968
4969 /**
4970  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4971  * @phba: pointer to lpfc hba data structure.
4972  * @acqe_link: pointer to the async link completion queue entry.
4973  *
4974  * This routine is to handle the SLI4 asynchronous FCoE link event.
4975  **/
4976 static void
4977 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4978                          struct lpfc_acqe_link *acqe_link)
4979 {
4980         struct lpfc_dmabuf *mp;
4981         LPFC_MBOXQ_t *pmb;
4982         MAILBOX_t *mb;
4983         struct lpfc_mbx_read_top *la;
4984         uint8_t att_type;
4985         int rc;
4986
4987         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4988         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4989                 return;
4990         phba->fcoe_eventtag = acqe_link->event_tag;
4991         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4992         if (!pmb) {
4993                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4994                                 "0395 The mboxq allocation failed\n");
4995                 return;
4996         }
4997         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4998         if (!mp) {
4999                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5000                                 "0396 The lpfc_dmabuf allocation failed\n");
5001                 goto out_free_pmb;
5002         }
5003         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5004         if (!mp->virt) {
5005                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5006                                 "0397 The mbuf allocation failed\n");
5007                 goto out_free_dmabuf;
5008         }
5009
5010         /* Cleanup any outstanding ELS commands */
5011         lpfc_els_flush_all_cmd(phba);
5012
5013         /* Block ELS IOCBs until we have done process link event */
5014         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5015
5016         /* Update link event statistics */
5017         phba->sli.slistat.link_event++;
5018
5019         /* Create lpfc_handle_latt mailbox command from link ACQE */
5020         lpfc_read_topology(phba, pmb, mp);
5021         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5022         pmb->vport = phba->pport;
5023
5024         /* Keep the link status for extra SLI4 state machine reference */
5025         phba->sli4_hba.link_state.speed =
5026                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5027                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5028         phba->sli4_hba.link_state.duplex =
5029                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5030         phba->sli4_hba.link_state.status =
5031                                 bf_get(lpfc_acqe_link_status, acqe_link);
5032         phba->sli4_hba.link_state.type =
5033                                 bf_get(lpfc_acqe_link_type, acqe_link);
5034         phba->sli4_hba.link_state.number =
5035                                 bf_get(lpfc_acqe_link_number, acqe_link);
5036         phba->sli4_hba.link_state.fault =
5037                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5038         phba->sli4_hba.link_state.logical_speed =
5039                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5040
5041         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5042                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5043                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5044                         "Logical speed:%dMbps Fault:%d\n",
5045                         phba->sli4_hba.link_state.speed,
5046                         phba->sli4_hba.link_state.topology,
5047                         phba->sli4_hba.link_state.status,
5048                         phba->sli4_hba.link_state.type,
5049                         phba->sli4_hba.link_state.number,
5050                         phba->sli4_hba.link_state.logical_speed,
5051                         phba->sli4_hba.link_state.fault);
5052         /*
5053          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5054          * topology info. Note: Optional for non FC-AL ports.
5055          */
5056         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5057                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5058                 if (rc == MBX_NOT_FINISHED)
5059                         goto out_free_dmabuf;
5060                 return;
5061         }
5062         /*
5063          * For FCoE Mode: fill in all the topology information we need and call
5064          * the READ_TOPOLOGY completion routine to continue without actually
5065          * sending the READ_TOPOLOGY mailbox command to the port.
5066          */
5067         /* Initialize completion status */
5068         mb = &pmb->u.mb;
5069         mb->mbxStatus = MBX_SUCCESS;
5070
5071         /* Parse port fault information field */
5072         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5073
5074         /* Parse and translate link attention fields */
5075         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5076         la->eventTag = acqe_link->event_tag;
5077         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5078         bf_set(lpfc_mbx_read_top_link_spd, la,
5079                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5080
5081         /* Fake the the following irrelvant fields */
5082         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5083         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5084         bf_set(lpfc_mbx_read_top_il, la, 0);
5085         bf_set(lpfc_mbx_read_top_pb, la, 0);
5086         bf_set(lpfc_mbx_read_top_fa, la, 0);
5087         bf_set(lpfc_mbx_read_top_mm, la, 0);
5088
5089         /* Invoke the lpfc_handle_latt mailbox command callback function */
5090         lpfc_mbx_cmpl_read_topology(phba, pmb);
5091
5092         return;
5093
5094 out_free_dmabuf:
5095         kfree(mp);
5096 out_free_pmb:
5097         mempool_free(pmb, phba->mbox_mem_pool);
5098 }
5099
5100 /**
5101  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5102  * topology.
5103  * @phba: pointer to lpfc hba data structure.
5104  * @speed_code: asynchronous event link speed code.
5105  *
5106  * This routine is to parse the giving SLI4 async event link speed code into
5107  * value of Read topology link speed.
5108  *
5109  * Return: link speed in terms of Read topology.
5110  **/
5111 static uint8_t
5112 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5113 {
5114         uint8_t port_speed;
5115
5116         switch (speed_code) {
5117         case LPFC_FC_LA_SPEED_1G:
5118                 port_speed = LPFC_LINK_SPEED_1GHZ;
5119                 break;
5120         case LPFC_FC_LA_SPEED_2G:
5121                 port_speed = LPFC_LINK_SPEED_2GHZ;
5122                 break;
5123         case LPFC_FC_LA_SPEED_4G:
5124                 port_speed = LPFC_LINK_SPEED_4GHZ;
5125                 break;
5126         case LPFC_FC_LA_SPEED_8G:
5127                 port_speed = LPFC_LINK_SPEED_8GHZ;
5128                 break;
5129         case LPFC_FC_LA_SPEED_16G:
5130                 port_speed = LPFC_LINK_SPEED_16GHZ;
5131                 break;
5132         case LPFC_FC_LA_SPEED_32G:
5133                 port_speed = LPFC_LINK_SPEED_32GHZ;
5134                 break;
5135         case LPFC_FC_LA_SPEED_64G:
5136                 port_speed = LPFC_LINK_SPEED_64GHZ;
5137                 break;
5138         case LPFC_FC_LA_SPEED_128G:
5139                 port_speed = LPFC_LINK_SPEED_128GHZ;
5140                 break;
5141         case LPFC_FC_LA_SPEED_256G:
5142                 port_speed = LPFC_LINK_SPEED_256GHZ;
5143                 break;
5144         default:
5145                 port_speed = 0;
5146                 break;
5147         }
5148
5149         return port_speed;
5150 }
5151
5152 #define trunk_link_status(__idx)\
5153         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5154                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5155                 "Link up" : "Link down") : "NA"
5156 /* Did port __idx reported an error */
5157 #define trunk_port_fault(__idx)\
5158         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5159                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5160
5161 static void
5162 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5163                               struct lpfc_acqe_fc_la *acqe_fc)
5164 {
5165         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5166         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5167
5168         phba->sli4_hba.link_state.speed =
5169                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5170                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5171
5172         phba->sli4_hba.link_state.logical_speed =
5173                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5174         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5175         phba->fc_linkspeed =
5176                  lpfc_async_link_speed_to_read_top(
5177                                 phba,
5178                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5179
5180         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5181                 phba->trunk_link.link0.state =
5182                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5183                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5184                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5185         }
5186         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5187                 phba->trunk_link.link1.state =
5188                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5189                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5190                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5191         }
5192         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5193                 phba->trunk_link.link2.state =
5194                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5195                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5196                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5197         }
5198         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5199                 phba->trunk_link.link3.state =
5200                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5201                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5202                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5203         }
5204
5205         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5206                         "2910 Async FC Trunking Event - Speed:%d\n"
5207                         "\tLogical speed:%d "
5208                         "port0: %s port1: %s port2: %s port3: %s\n",
5209                         phba->sli4_hba.link_state.speed,
5210                         phba->sli4_hba.link_state.logical_speed,
5211                         trunk_link_status(0), trunk_link_status(1),
5212                         trunk_link_status(2), trunk_link_status(3));
5213
5214         if (port_fault)
5215                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5216                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5217                                 /*
5218                                  * SLI-4: We have only 0xA error codes
5219                                  * defined as of now. print an appropriate
5220                                  * message in case driver needs to be updated.
5221                                  */
5222                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5223                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5224                                 trunk_port_fault(0), trunk_port_fault(1),
5225                                 trunk_port_fault(2), trunk_port_fault(3));
5226 }
5227
5228
5229 /**
5230  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5231  * @phba: pointer to lpfc hba data structure.
5232  * @acqe_fc: pointer to the async fc completion queue entry.
5233  *
5234  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5235  * that the event was received and then issue a read_topology mailbox command so
5236  * that the rest of the driver will treat it the same as SLI3.
5237  **/
5238 static void
5239 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5240 {
5241         struct lpfc_dmabuf *mp;
5242         LPFC_MBOXQ_t *pmb;
5243         MAILBOX_t *mb;
5244         struct lpfc_mbx_read_top *la;
5245         int rc;
5246
5247         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5248             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5249                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5250                                 "2895 Non FC link Event detected.(%d)\n",
5251                                 bf_get(lpfc_trailer_type, acqe_fc));
5252                 return;
5253         }
5254
5255         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5256             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5257                 lpfc_update_trunk_link_status(phba, acqe_fc);
5258                 return;
5259         }
5260
5261         /* Keep the link status for extra SLI4 state machine reference */
5262         phba->sli4_hba.link_state.speed =
5263                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5264                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5265         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5266         phba->sli4_hba.link_state.topology =
5267                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5268         phba->sli4_hba.link_state.status =
5269                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5270         phba->sli4_hba.link_state.type =
5271                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5272         phba->sli4_hba.link_state.number =
5273                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5274         phba->sli4_hba.link_state.fault =
5275                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5276
5277         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5278             LPFC_FC_LA_TYPE_LINK_DOWN)
5279                 phba->sli4_hba.link_state.logical_speed = 0;
5280         else if (!phba->sli4_hba.conf_trunk)
5281                 phba->sli4_hba.link_state.logical_speed =
5282                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5283
5284         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5285                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5286                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5287                         "%dMbps Fault:%d\n",
5288                         phba->sli4_hba.link_state.speed,
5289                         phba->sli4_hba.link_state.topology,
5290                         phba->sli4_hba.link_state.status,
5291                         phba->sli4_hba.link_state.type,
5292                         phba->sli4_hba.link_state.number,
5293                         phba->sli4_hba.link_state.logical_speed,
5294                         phba->sli4_hba.link_state.fault);
5295         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5296         if (!pmb) {
5297                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5298                                 "2897 The mboxq allocation failed\n");
5299                 return;
5300         }
5301         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5302         if (!mp) {
5303                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5304                                 "2898 The lpfc_dmabuf allocation failed\n");
5305                 goto out_free_pmb;
5306         }
5307         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5308         if (!mp->virt) {
5309                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5310                                 "2899 The mbuf allocation failed\n");
5311                 goto out_free_dmabuf;
5312         }
5313
5314         /* Cleanup any outstanding ELS commands */
5315         lpfc_els_flush_all_cmd(phba);
5316
5317         /* Block ELS IOCBs until we have done process link event */
5318         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5319
5320         /* Update link event statistics */
5321         phba->sli.slistat.link_event++;
5322
5323         /* Create lpfc_handle_latt mailbox command from link ACQE */
5324         lpfc_read_topology(phba, pmb, mp);
5325         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5326         pmb->vport = phba->pport;
5327
5328         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5329                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5330
5331                 switch (phba->sli4_hba.link_state.status) {
5332                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5333                         phba->link_flag |= LS_MDS_LINK_DOWN;
5334                         break;
5335                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5336                         phba->link_flag |= LS_MDS_LOOPBACK;
5337                         break;
5338                 default:
5339                         break;
5340                 }
5341
5342                 /* Initialize completion status */
5343                 mb = &pmb->u.mb;
5344                 mb->mbxStatus = MBX_SUCCESS;
5345
5346                 /* Parse port fault information field */
5347                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5348
5349                 /* Parse and translate link attention fields */
5350                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5351                 la->eventTag = acqe_fc->event_tag;
5352
5353                 if (phba->sli4_hba.link_state.status ==
5354                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5355                         bf_set(lpfc_mbx_read_top_att_type, la,
5356                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5357                 } else {
5358                         bf_set(lpfc_mbx_read_top_att_type, la,
5359                                LPFC_FC_LA_TYPE_LINK_DOWN);
5360                 }
5361                 /* Invoke the mailbox command callback function */
5362                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5363
5364                 return;
5365         }
5366
5367         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5368         if (rc == MBX_NOT_FINISHED)
5369                 goto out_free_dmabuf;
5370         return;
5371
5372 out_free_dmabuf:
5373         kfree(mp);
5374 out_free_pmb:
5375         mempool_free(pmb, phba->mbox_mem_pool);
5376 }
5377
5378 /**
5379  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5380  * @phba: pointer to lpfc hba data structure.
5381  * @acqe_sli: pointer to the async SLI completion queue entry.
5382  *
5383  * This routine is to handle the SLI4 asynchronous SLI events.
5384  **/
5385 static void
5386 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5387 {
5388         char port_name;
5389         char message[128];
5390         uint8_t status;
5391         uint8_t evt_type;
5392         uint8_t operational = 0;
5393         struct temp_event temp_event_data;
5394         struct lpfc_acqe_misconfigured_event *misconfigured;
5395         struct Scsi_Host  *shost;
5396         struct lpfc_vport **vports;
5397         int rc, i;
5398
5399         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5400
5401         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5402                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5403                         "x%08x x%08x x%08x\n", evt_type,
5404                         acqe_sli->event_data1, acqe_sli->event_data2,
5405                         acqe_sli->reserved, acqe_sli->trailer);
5406
5407         port_name = phba->Port[0];
5408         if (port_name == 0x00)
5409                 port_name = '?'; /* get port name is empty */
5410
5411         switch (evt_type) {
5412         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5413                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5414                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5415                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5416
5417                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5418                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5419                                 acqe_sli->event_data1, port_name);
5420
5421                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5422                 shost = lpfc_shost_from_vport(phba->pport);
5423                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5424                                           sizeof(temp_event_data),
5425                                           (char *)&temp_event_data,
5426                                           SCSI_NL_VID_TYPE_PCI
5427                                           | PCI_VENDOR_ID_EMULEX);
5428                 break;
5429         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5430                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5431                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5432                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5433
5434                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5435                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5436                                 acqe_sli->event_data1, port_name);
5437
5438                 shost = lpfc_shost_from_vport(phba->pport);
5439                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5440                                           sizeof(temp_event_data),
5441                                           (char *)&temp_event_data,
5442                                           SCSI_NL_VID_TYPE_PCI
5443                                           | PCI_VENDOR_ID_EMULEX);
5444                 break;
5445         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5446                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5447                                         &acqe_sli->event_data1;
5448
5449                 /* fetch the status for this port */
5450                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5451                 case LPFC_LINK_NUMBER_0:
5452                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5453                                         &misconfigured->theEvent);
5454                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5455                                         &misconfigured->theEvent);
5456                         break;
5457                 case LPFC_LINK_NUMBER_1:
5458                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5459                                         &misconfigured->theEvent);
5460                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5461                                         &misconfigured->theEvent);
5462                         break;
5463                 case LPFC_LINK_NUMBER_2:
5464                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5465                                         &misconfigured->theEvent);
5466                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5467                                         &misconfigured->theEvent);
5468                         break;
5469                 case LPFC_LINK_NUMBER_3:
5470                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5471                                         &misconfigured->theEvent);
5472                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5473                                         &misconfigured->theEvent);
5474                         break;
5475                 default:
5476                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5477                                         "3296 "
5478                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5479                                         "event: Invalid link %d",
5480                                         phba->sli4_hba.lnk_info.lnk_no);
5481                         return;
5482                 }
5483
5484                 /* Skip if optic state unchanged */
5485                 if (phba->sli4_hba.lnk_info.optic_state == status)
5486                         return;
5487
5488                 switch (status) {
5489                 case LPFC_SLI_EVENT_STATUS_VALID:
5490                         sprintf(message, "Physical Link is functional");
5491                         break;
5492                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5493                         sprintf(message, "Optics faulted/incorrectly "
5494                                 "installed/not installed - Reseat optics, "
5495                                 "if issue not resolved, replace.");
5496                         break;
5497                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5498                         sprintf(message,
5499                                 "Optics of two types installed - Remove one "
5500                                 "optic or install matching pair of optics.");
5501                         break;
5502                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5503                         sprintf(message, "Incompatible optics - Replace with "
5504                                 "compatible optics for card to function.");
5505                         break;
5506                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5507                         sprintf(message, "Unqualified optics - Replace with "
5508                                 "Avago optics for Warranty and Technical "
5509                                 "Support - Link is%s operational",
5510                                 (operational) ? " not" : "");
5511                         break;
5512                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5513                         sprintf(message, "Uncertified optics - Replace with "
5514                                 "Avago-certified optics to enable link "
5515                                 "operation - Link is%s operational",
5516                                 (operational) ? " not" : "");
5517                         break;
5518                 default:
5519                         /* firmware is reporting a status we don't know about */
5520                         sprintf(message, "Unknown event status x%02x", status);
5521                         break;
5522                 }
5523
5524                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5525                 rc = lpfc_sli4_read_config(phba);
5526                 if (rc) {
5527                         phba->lmt = 0;
5528                         lpfc_printf_log(phba, KERN_ERR,
5529                                         LOG_TRACE_EVENT,
5530                                         "3194 Unable to retrieve supported "
5531                                         "speeds, rc = 0x%x\n", rc);
5532                 }
5533                 vports = lpfc_create_vport_work_array(phba);
5534                 if (vports != NULL) {
5535                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5536                                         i++) {
5537                                 shost = lpfc_shost_from_vport(vports[i]);
5538                                 lpfc_host_supported_speeds_set(shost);
5539                         }
5540                 }
5541                 lpfc_destroy_vport_work_array(phba, vports);
5542
5543                 phba->sli4_hba.lnk_info.optic_state = status;
5544                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5545                                 "3176 Port Name %c %s\n", port_name, message);
5546                 break;
5547         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5548                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5549                                 "3192 Remote DPort Test Initiated - "
5550                                 "Event Data1:x%08x Event Data2: x%08x\n",
5551                                 acqe_sli->event_data1, acqe_sli->event_data2);
5552                 break;
5553         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5554                 /* Misconfigured WWN. Reports that the SLI Port is configured
5555                  * to use FA-WWN, but the attached device doesn’t support it.
5556                  * No driver action is required.
5557                  * Event Data1 - N.A, Event Data2 - N.A
5558                  */
5559                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5560                              "2699 Misconfigured FA-WWN - Attached device does "
5561                              "not support FA-WWN\n");
5562                 break;
5563         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5564                 /* EEPROM failure. No driver action is required */
5565                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5566                              "2518 EEPROM failure - "
5567                              "Event Data1: x%08x Event Data2: x%08x\n",
5568                              acqe_sli->event_data1, acqe_sli->event_data2);
5569                 break;
5570         default:
5571                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5572                                 "3193 Unrecognized SLI event, type: 0x%x",
5573                                 evt_type);
5574                 break;
5575         }
5576 }
5577
5578 /**
5579  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5580  * @vport: pointer to vport data structure.
5581  *
5582  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5583  * response to a CVL event.
5584  *
5585  * Return the pointer to the ndlp with the vport if successful, otherwise
5586  * return NULL.
5587  **/
5588 static struct lpfc_nodelist *
5589 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5590 {
5591         struct lpfc_nodelist *ndlp;
5592         struct Scsi_Host *shost;
5593         struct lpfc_hba *phba;
5594
5595         if (!vport)
5596                 return NULL;
5597         phba = vport->phba;
5598         if (!phba)
5599                 return NULL;
5600         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5601         if (!ndlp) {
5602                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5603                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5604                 if (!ndlp)
5605                         return 0;
5606                 /* Set the node type */
5607                 ndlp->nlp_type |= NLP_FABRIC;
5608                 /* Put ndlp onto node list */
5609                 lpfc_enqueue_node(vport, ndlp);
5610         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5611                 /* re-setup ndlp without removing from node list */
5612                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5613                 if (!ndlp)
5614                         return 0;
5615         }
5616         if ((phba->pport->port_state < LPFC_FLOGI) &&
5617                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5618                 return NULL;
5619         /* If virtual link is not yet instantiated ignore CVL */
5620         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5621                 && (vport->port_state != LPFC_VPORT_FAILED))
5622                 return NULL;
5623         shost = lpfc_shost_from_vport(vport);
5624         if (!shost)
5625                 return NULL;
5626         lpfc_linkdown_port(vport);
5627         lpfc_cleanup_pending_mbox(vport);
5628         spin_lock_irq(shost->host_lock);
5629         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5630         spin_unlock_irq(shost->host_lock);
5631
5632         return ndlp;
5633 }
5634
5635 /**
5636  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5637  * @phba: pointer to lpfc hba data structure.
5638  *
5639  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5640  * response to a FCF dead event.
5641  **/
5642 static void
5643 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5644 {
5645         struct lpfc_vport **vports;
5646         int i;
5647
5648         vports = lpfc_create_vport_work_array(phba);
5649         if (vports)
5650                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5651                         lpfc_sli4_perform_vport_cvl(vports[i]);
5652         lpfc_destroy_vport_work_array(phba, vports);
5653 }
5654
5655 /**
5656  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5657  * @phba: pointer to lpfc hba data structure.
5658  * @acqe_fip: pointer to the async fcoe completion queue entry.
5659  *
5660  * This routine is to handle the SLI4 asynchronous fcoe event.
5661  **/
5662 static void
5663 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5664                         struct lpfc_acqe_fip *acqe_fip)
5665 {
5666         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5667         int rc;
5668         struct lpfc_vport *vport;
5669         struct lpfc_nodelist *ndlp;
5670         struct Scsi_Host  *shost;
5671         int active_vlink_present;
5672         struct lpfc_vport **vports;
5673         int i;
5674
5675         phba->fc_eventTag = acqe_fip->event_tag;
5676         phba->fcoe_eventtag = acqe_fip->event_tag;
5677         switch (event_type) {
5678         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5679         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5680                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5681                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5682                                         "2546 New FCF event, evt_tag:x%x, "
5683                                         "index:x%x\n",
5684                                         acqe_fip->event_tag,
5685                                         acqe_fip->index);
5686                 else
5687                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5688                                         LOG_DISCOVERY,
5689                                         "2788 FCF param modified event, "
5690                                         "evt_tag:x%x, index:x%x\n",
5691                                         acqe_fip->event_tag,
5692                                         acqe_fip->index);
5693                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5694                         /*
5695                          * During period of FCF discovery, read the FCF
5696                          * table record indexed by the event to update
5697                          * FCF roundrobin failover eligible FCF bmask.
5698                          */
5699                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5700                                         LOG_DISCOVERY,
5701                                         "2779 Read FCF (x%x) for updating "
5702                                         "roundrobin FCF failover bmask\n",
5703                                         acqe_fip->index);
5704                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5705                 }
5706
5707                 /* If the FCF discovery is in progress, do nothing. */
5708                 spin_lock_irq(&phba->hbalock);
5709                 if (phba->hba_flag & FCF_TS_INPROG) {
5710                         spin_unlock_irq(&phba->hbalock);
5711                         break;
5712                 }
5713                 /* If fast FCF failover rescan event is pending, do nothing */
5714                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5715                         spin_unlock_irq(&phba->hbalock);
5716                         break;
5717                 }
5718
5719                 /* If the FCF has been in discovered state, do nothing. */
5720                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5721                         spin_unlock_irq(&phba->hbalock);
5722                         break;
5723                 }
5724                 spin_unlock_irq(&phba->hbalock);
5725
5726                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5727                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5728                                 "2770 Start FCF table scan per async FCF "
5729                                 "event, evt_tag:x%x, index:x%x\n",
5730                                 acqe_fip->event_tag, acqe_fip->index);
5731                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5732                                                      LPFC_FCOE_FCF_GET_FIRST);
5733                 if (rc)
5734                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5735                                         "2547 Issue FCF scan read FCF mailbox "
5736                                         "command failed (x%x)\n", rc);
5737                 break;
5738
5739         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5740                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5741                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
5742                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5743                                 acqe_fip->event_tag);
5744                 break;
5745
5746         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5747                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5748                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5749                                 "2549 FCF (x%x) disconnected from network, "
5750                                  "tag:x%x\n", acqe_fip->index,
5751                                  acqe_fip->event_tag);
5752                 /*
5753                  * If we are in the middle of FCF failover process, clear
5754                  * the corresponding FCF bit in the roundrobin bitmap.
5755                  */
5756                 spin_lock_irq(&phba->hbalock);
5757                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5758                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5759                         spin_unlock_irq(&phba->hbalock);
5760                         /* Update FLOGI FCF failover eligible FCF bmask */
5761                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5762                         break;
5763                 }
5764                 spin_unlock_irq(&phba->hbalock);
5765
5766                 /* If the event is not for currently used fcf do nothing */
5767                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5768                         break;
5769
5770                 /*
5771                  * Otherwise, request the port to rediscover the entire FCF
5772                  * table for a fast recovery from case that the current FCF
5773                  * is no longer valid as we are not in the middle of FCF
5774                  * failover process already.
5775                  */
5776                 spin_lock_irq(&phba->hbalock);
5777                 /* Mark the fast failover process in progress */
5778                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5779                 spin_unlock_irq(&phba->hbalock);
5780
5781                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5782                                 "2771 Start FCF fast failover process due to "
5783                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5784                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5785                 rc = lpfc_sli4_redisc_fcf_table(phba);
5786                 if (rc) {
5787                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5788                                         LOG_TRACE_EVENT,
5789                                         "2772 Issue FCF rediscover mailbox "
5790                                         "command failed, fail through to FCF "
5791                                         "dead event\n");
5792                         spin_lock_irq(&phba->hbalock);
5793                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5794                         spin_unlock_irq(&phba->hbalock);
5795                         /*
5796                          * Last resort will fail over by treating this
5797                          * as a link down to FCF registration.
5798                          */
5799                         lpfc_sli4_fcf_dead_failthrough(phba);
5800                 } else {
5801                         /* Reset FCF roundrobin bmask for new discovery */
5802                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5803                         /*
5804                          * Handling fast FCF failover to a DEAD FCF event is
5805                          * considered equalivant to receiving CVL to all vports.
5806                          */
5807                         lpfc_sli4_perform_all_vport_cvl(phba);
5808                 }
5809                 break;
5810         case LPFC_FIP_EVENT_TYPE_CVL:
5811                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5812                 lpfc_printf_log(phba, KERN_ERR,
5813                                 LOG_TRACE_EVENT,
5814                         "2718 Clear Virtual Link Received for VPI 0x%x"
5815                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5816
5817                 vport = lpfc_find_vport_by_vpid(phba,
5818                                                 acqe_fip->index);
5819                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5820                 if (!ndlp)
5821                         break;
5822                 active_vlink_present = 0;
5823
5824                 vports = lpfc_create_vport_work_array(phba);
5825                 if (vports) {
5826                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5827                                         i++) {
5828                                 if ((!(vports[i]->fc_flag &
5829                                         FC_VPORT_CVL_RCVD)) &&
5830                                         (vports[i]->port_state > LPFC_FDISC)) {
5831                                         active_vlink_present = 1;
5832                                         break;
5833                                 }
5834                         }
5835                         lpfc_destroy_vport_work_array(phba, vports);
5836                 }
5837
5838                 /*
5839                  * Don't re-instantiate if vport is marked for deletion.
5840                  * If we are here first then vport_delete is going to wait
5841                  * for discovery to complete.
5842                  */
5843                 if (!(vport->load_flag & FC_UNLOADING) &&
5844                                         active_vlink_present) {
5845                         /*
5846                          * If there are other active VLinks present,
5847                          * re-instantiate the Vlink using FDISC.
5848                          */
5849                         mod_timer(&ndlp->nlp_delayfunc,
5850                                   jiffies + msecs_to_jiffies(1000));
5851                         shost = lpfc_shost_from_vport(vport);
5852                         spin_lock_irq(shost->host_lock);
5853                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5854                         spin_unlock_irq(shost->host_lock);
5855                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5856                         vport->port_state = LPFC_FDISC;
5857                 } else {
5858                         /*
5859                          * Otherwise, we request port to rediscover
5860                          * the entire FCF table for a fast recovery
5861                          * from possible case that the current FCF
5862                          * is no longer valid if we are not already
5863                          * in the FCF failover process.
5864                          */
5865                         spin_lock_irq(&phba->hbalock);
5866                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5867                                 spin_unlock_irq(&phba->hbalock);
5868                                 break;
5869                         }
5870                         /* Mark the fast failover process in progress */
5871                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5872                         spin_unlock_irq(&phba->hbalock);
5873                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5874                                         LOG_DISCOVERY,
5875                                         "2773 Start FCF failover per CVL, "
5876                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5877                         rc = lpfc_sli4_redisc_fcf_table(phba);
5878                         if (rc) {
5879                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5880                                                 LOG_TRACE_EVENT,
5881                                                 "2774 Issue FCF rediscover "
5882                                                 "mailbox command failed, "
5883                                                 "through to CVL event\n");
5884                                 spin_lock_irq(&phba->hbalock);
5885                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5886                                 spin_unlock_irq(&phba->hbalock);
5887                                 /*
5888                                  * Last resort will be re-try on the
5889                                  * the current registered FCF entry.
5890                                  */
5891                                 lpfc_retry_pport_discovery(phba);
5892                         } else
5893                                 /*
5894                                  * Reset FCF roundrobin bmask for new
5895                                  * discovery.
5896                                  */
5897                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5898                 }
5899                 break;
5900         default:
5901                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5902                                 "0288 Unknown FCoE event type 0x%x event tag "
5903                                 "0x%x\n", event_type, acqe_fip->event_tag);
5904                 break;
5905         }
5906 }
5907
5908 /**
5909  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5910  * @phba: pointer to lpfc hba data structure.
5911  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
5912  *
5913  * This routine is to handle the SLI4 asynchronous dcbx event.
5914  **/
5915 static void
5916 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5917                          struct lpfc_acqe_dcbx *acqe_dcbx)
5918 {
5919         phba->fc_eventTag = acqe_dcbx->event_tag;
5920         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5921                         "0290 The SLI4 DCBX asynchronous event is not "
5922                         "handled yet\n");
5923 }
5924
5925 /**
5926  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5927  * @phba: pointer to lpfc hba data structure.
5928  * @acqe_grp5: pointer to the async grp5 completion queue entry.
5929  *
5930  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5931  * is an asynchronous notified of a logical link speed change.  The Port
5932  * reports the logical link speed in units of 10Mbps.
5933  **/
5934 static void
5935 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5936                          struct lpfc_acqe_grp5 *acqe_grp5)
5937 {
5938         uint16_t prev_ll_spd;
5939
5940         phba->fc_eventTag = acqe_grp5->event_tag;
5941         phba->fcoe_eventtag = acqe_grp5->event_tag;
5942         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5943         phba->sli4_hba.link_state.logical_speed =
5944                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5945         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5946                         "2789 GRP5 Async Event: Updating logical link speed "
5947                         "from %dMbps to %dMbps\n", prev_ll_spd,
5948                         phba->sli4_hba.link_state.logical_speed);
5949 }
5950
5951 /**
5952  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5953  * @phba: pointer to lpfc hba data structure.
5954  *
5955  * This routine is invoked by the worker thread to process all the pending
5956  * SLI4 asynchronous events.
5957  **/
5958 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5959 {
5960         struct lpfc_cq_event *cq_event;
5961
5962         /* First, declare the async event has been handled */
5963         spin_lock_irq(&phba->hbalock);
5964         phba->hba_flag &= ~ASYNC_EVENT;
5965         spin_unlock_irq(&phba->hbalock);
5966         /* Now, handle all the async events */
5967         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5968                 /* Get the first event from the head of the event queue */
5969                 spin_lock_irq(&phba->hbalock);
5970                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5971                                  cq_event, struct lpfc_cq_event, list);
5972                 spin_unlock_irq(&phba->hbalock);
5973                 /* Process the asynchronous event */
5974                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5975                 case LPFC_TRAILER_CODE_LINK:
5976                         lpfc_sli4_async_link_evt(phba,
5977                                                  &cq_event->cqe.acqe_link);
5978                         break;
5979                 case LPFC_TRAILER_CODE_FCOE:
5980                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5981                         break;
5982                 case LPFC_TRAILER_CODE_DCBX:
5983                         lpfc_sli4_async_dcbx_evt(phba,
5984                                                  &cq_event->cqe.acqe_dcbx);
5985                         break;
5986                 case LPFC_TRAILER_CODE_GRP5:
5987                         lpfc_sli4_async_grp5_evt(phba,
5988                                                  &cq_event->cqe.acqe_grp5);
5989                         break;
5990                 case LPFC_TRAILER_CODE_FC:
5991                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5992                         break;
5993                 case LPFC_TRAILER_CODE_SLI:
5994                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5995                         break;
5996                 default:
5997                         lpfc_printf_log(phba, KERN_ERR,
5998                                         LOG_TRACE_EVENT,
5999                                         "1804 Invalid asynchronous event code: "
6000                                         "x%x\n", bf_get(lpfc_trailer_code,
6001                                         &cq_event->cqe.mcqe_cmpl));
6002                         break;
6003                 }
6004                 /* Free the completion event processed to the free pool */
6005                 lpfc_sli4_cq_event_release(phba, cq_event);
6006         }
6007 }
6008
6009 /**
6010  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
6011  * @phba: pointer to lpfc hba data structure.
6012  *
6013  * This routine is invoked by the worker thread to process FCF table
6014  * rediscovery pending completion event.
6015  **/
6016 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
6017 {
6018         int rc;
6019
6020         spin_lock_irq(&phba->hbalock);
6021         /* Clear FCF rediscovery timeout event */
6022         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
6023         /* Clear driver fast failover FCF record flag */
6024         phba->fcf.failover_rec.flag = 0;
6025         /* Set state for FCF fast failover */
6026         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
6027         spin_unlock_irq(&phba->hbalock);
6028
6029         /* Scan FCF table from the first entry to re-discover SAN */
6030         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6031                         "2777 Start post-quiescent FCF table scan\n");
6032         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
6033         if (rc)
6034                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6035                                 "2747 Issue FCF scan read FCF mailbox "
6036                                 "command failed 0x%x\n", rc);
6037 }
6038
6039 /**
6040  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
6041  * @phba: pointer to lpfc hba data structure.
6042  * @dev_grp: The HBA PCI-Device group number.
6043  *
6044  * This routine is invoked to set up the per HBA PCI-Device group function
6045  * API jump table entries.
6046  *
6047  * Return: 0 if success, otherwise -ENODEV
6048  **/
6049 int
6050 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6051 {
6052         int rc;
6053
6054         /* Set up lpfc PCI-device group */
6055         phba->pci_dev_grp = dev_grp;
6056
6057         /* The LPFC_PCI_DEV_OC uses SLI4 */
6058         if (dev_grp == LPFC_PCI_DEV_OC)
6059                 phba->sli_rev = LPFC_SLI_REV4;
6060
6061         /* Set up device INIT API function jump table */
6062         rc = lpfc_init_api_table_setup(phba, dev_grp);
6063         if (rc)
6064                 return -ENODEV;
6065         /* Set up SCSI API function jump table */
6066         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
6067         if (rc)
6068                 return -ENODEV;
6069         /* Set up SLI API function jump table */
6070         rc = lpfc_sli_api_table_setup(phba, dev_grp);
6071         if (rc)
6072                 return -ENODEV;
6073         /* Set up MBOX API function jump table */
6074         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
6075         if (rc)
6076                 return -ENODEV;
6077
6078         return 0;
6079 }
6080
6081 /**
6082  * lpfc_log_intr_mode - Log the active interrupt mode
6083  * @phba: pointer to lpfc hba data structure.
6084  * @intr_mode: active interrupt mode adopted.
6085  *
6086  * This routine it invoked to log the currently used active interrupt mode
6087  * to the device.
6088  **/
6089 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
6090 {
6091         switch (intr_mode) {
6092         case 0:
6093                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6094                                 "0470 Enable INTx interrupt mode.\n");
6095                 break;
6096         case 1:
6097                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6098                                 "0481 Enabled MSI interrupt mode.\n");
6099                 break;
6100         case 2:
6101                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6102                                 "0480 Enabled MSI-X interrupt mode.\n");
6103                 break;
6104         default:
6105                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6106                                 "0482 Illegal interrupt mode.\n");
6107                 break;
6108         }
6109         return;
6110 }
6111
6112 /**
6113  * lpfc_enable_pci_dev - Enable a generic PCI device.
6114  * @phba: pointer to lpfc hba data structure.
6115  *
6116  * This routine is invoked to enable the PCI device that is common to all
6117  * PCI devices.
6118  *
6119  * Return codes
6120  *      0 - successful
6121  *      other values - error
6122  **/
6123 static int
6124 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6125 {
6126         struct pci_dev *pdev;
6127
6128         /* Obtain PCI device reference */
6129         if (!phba->pcidev)
6130                 goto out_error;
6131         else
6132                 pdev = phba->pcidev;
6133         /* Enable PCI device */
6134         if (pci_enable_device_mem(pdev))
6135                 goto out_error;
6136         /* Request PCI resource for the device */
6137         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6138                 goto out_disable_device;
6139         /* Set up device as PCI master and save state for EEH */
6140         pci_set_master(pdev);
6141         pci_try_set_mwi(pdev);
6142         pci_save_state(pdev);
6143
6144         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6145         if (pci_is_pcie(pdev))
6146                 pdev->needs_freset = 1;
6147
6148         return 0;
6149
6150 out_disable_device:
6151         pci_disable_device(pdev);
6152 out_error:
6153         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6154                         "1401 Failed to enable pci device\n");
6155         return -ENODEV;
6156 }
6157
6158 /**
6159  * lpfc_disable_pci_dev - Disable a generic PCI device.
6160  * @phba: pointer to lpfc hba data structure.
6161  *
6162  * This routine is invoked to disable the PCI device that is common to all
6163  * PCI devices.
6164  **/
6165 static void
6166 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6167 {
6168         struct pci_dev *pdev;
6169
6170         /* Obtain PCI device reference */
6171         if (!phba->pcidev)
6172                 return;
6173         else
6174                 pdev = phba->pcidev;
6175         /* Release PCI resource and disable PCI device */
6176         pci_release_mem_regions(pdev);
6177         pci_disable_device(pdev);
6178
6179         return;
6180 }
6181
6182 /**
6183  * lpfc_reset_hba - Reset a hba
6184  * @phba: pointer to lpfc hba data structure.
6185  *
6186  * This routine is invoked to reset a hba device. It brings the HBA
6187  * offline, performs a board restart, and then brings the board back
6188  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6189  * on outstanding mailbox commands.
6190  **/
6191 void
6192 lpfc_reset_hba(struct lpfc_hba *phba)
6193 {
6194         /* If resets are disabled then set error state and return. */
6195         if (!phba->cfg_enable_hba_reset) {
6196                 phba->link_state = LPFC_HBA_ERROR;
6197                 return;
6198         }
6199         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6200                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6201         else
6202                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6203         lpfc_offline(phba);
6204         lpfc_sli_brdrestart(phba);
6205         lpfc_online(phba);
6206         lpfc_unblock_mgmt_io(phba);
6207 }
6208
6209 /**
6210  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6211  * @phba: pointer to lpfc hba data structure.
6212  *
6213  * This function enables the PCI SR-IOV virtual functions to a physical
6214  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6215  * enable the number of virtual functions to the physical function. As
6216  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6217  * API call does not considered as an error condition for most of the device.
6218  **/
6219 uint16_t
6220 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6221 {
6222         struct pci_dev *pdev = phba->pcidev;
6223         uint16_t nr_virtfn;
6224         int pos;
6225
6226         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6227         if (pos == 0)
6228                 return 0;
6229
6230         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6231         return nr_virtfn;
6232 }
6233
6234 /**
6235  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6236  * @phba: pointer to lpfc hba data structure.
6237  * @nr_vfn: number of virtual functions to be enabled.
6238  *
6239  * This function enables the PCI SR-IOV virtual functions to a physical
6240  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6241  * enable the number of virtual functions to the physical function. As
6242  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6243  * API call does not considered as an error condition for most of the device.
6244  **/
6245 int
6246 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6247 {
6248         struct pci_dev *pdev = phba->pcidev;
6249         uint16_t max_nr_vfn;
6250         int rc;
6251
6252         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6253         if (nr_vfn > max_nr_vfn) {
6254                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6255                                 "3057 Requested vfs (%d) greater than "
6256                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6257                 return -EINVAL;
6258         }
6259
6260         rc = pci_enable_sriov(pdev, nr_vfn);
6261         if (rc) {
6262                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6263                                 "2806 Failed to enable sriov on this device "
6264                                 "with vfn number nr_vf:%d, rc:%d\n",
6265                                 nr_vfn, rc);
6266         } else
6267                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6268                                 "2807 Successful enable sriov on this device "
6269                                 "with vfn number nr_vf:%d\n", nr_vfn);
6270         return rc;
6271 }
6272
6273 /**
6274  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6275  * @phba: pointer to lpfc hba data structure.
6276  *
6277  * This routine is invoked to set up the driver internal resources before the
6278  * device specific resource setup to support the HBA device it attached to.
6279  *
6280  * Return codes
6281  *      0 - successful
6282  *      other values - error
6283  **/
6284 static int
6285 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6286 {
6287         struct lpfc_sli *psli = &phba->sli;
6288
6289         /*
6290          * Driver resources common to all SLI revisions
6291          */
6292         atomic_set(&phba->fast_event_count, 0);
6293         atomic_set(&phba->dbg_log_idx, 0);
6294         atomic_set(&phba->dbg_log_cnt, 0);
6295         atomic_set(&phba->dbg_log_dmping, 0);
6296         spin_lock_init(&phba->hbalock);
6297
6298         /* Initialize ndlp management spinlock */
6299         spin_lock_init(&phba->ndlp_lock);
6300
6301         /* Initialize port_list spinlock */
6302         spin_lock_init(&phba->port_list_lock);
6303         INIT_LIST_HEAD(&phba->port_list);
6304
6305         INIT_LIST_HEAD(&phba->work_list);
6306         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6307
6308         /* Initialize the wait queue head for the kernel thread */
6309         init_waitqueue_head(&phba->work_waitq);
6310
6311         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6312                         "1403 Protocols supported %s %s %s\n",
6313                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6314                                 "SCSI" : " "),
6315                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6316                                 "NVME" : " "),
6317                         (phba->nvmet_support ? "NVMET" : " "));
6318
6319         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6320         spin_lock_init(&phba->scsi_buf_list_get_lock);
6321         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6322         spin_lock_init(&phba->scsi_buf_list_put_lock);
6323         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6324
6325         /* Initialize the fabric iocb list */
6326         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6327
6328         /* Initialize list to save ELS buffers */
6329         INIT_LIST_HEAD(&phba->elsbuf);
6330
6331         /* Initialize FCF connection rec list */
6332         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6333
6334         /* Initialize OAS configuration list */
6335         spin_lock_init(&phba->devicelock);
6336         INIT_LIST_HEAD(&phba->luns);
6337
6338         /* MBOX heartbeat timer */
6339         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6340         /* Fabric block timer */
6341         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6342         /* EA polling mode timer */
6343         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6344         /* Heartbeat timer */
6345         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6346
6347         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6348
6349         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
6350                           lpfc_idle_stat_delay_work);
6351
6352         return 0;
6353 }
6354
6355 /**
6356  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6357  * @phba: pointer to lpfc hba data structure.
6358  *
6359  * This routine is invoked to set up the driver internal resources specific to
6360  * support the SLI-3 HBA device it attached to.
6361  *
6362  * Return codes
6363  * 0 - successful
6364  * other values - error
6365  **/
6366 static int
6367 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6368 {
6369         int rc, entry_sz;
6370
6371         /*
6372          * Initialize timers used by driver
6373          */
6374
6375         /* FCP polling mode timer */
6376         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6377
6378         /* Host attention work mask setup */
6379         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6380         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6381
6382         /* Get all the module params for configuring this host */
6383         lpfc_get_cfgparam(phba);
6384         /* Set up phase-1 common device driver resources */
6385
6386         rc = lpfc_setup_driver_resource_phase1(phba);
6387         if (rc)
6388                 return -ENODEV;
6389
6390         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6391                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6392                 /* check for menlo minimum sg count */
6393                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6394                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6395         }
6396
6397         if (!phba->sli.sli3_ring)
6398                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6399                                               sizeof(struct lpfc_sli_ring),
6400                                               GFP_KERNEL);
6401         if (!phba->sli.sli3_ring)
6402                 return -ENOMEM;
6403
6404         /*
6405          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6406          * used to create the sg_dma_buf_pool must be dynamically calculated.
6407          */
6408
6409         if (phba->sli_rev == LPFC_SLI_REV4)
6410                 entry_sz = sizeof(struct sli4_sge);
6411         else
6412                 entry_sz = sizeof(struct ulp_bde64);
6413
6414         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6415         if (phba->cfg_enable_bg) {
6416                 /*
6417                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6418                  * the FCP rsp, and a BDE for each. Sice we have no control
6419                  * over how many protection data segments the SCSI Layer
6420                  * will hand us (ie: there could be one for every block
6421                  * in the IO), we just allocate enough BDEs to accomidate
6422                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6423                  * minimize the risk of running out.
6424                  */
6425                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6426                         sizeof(struct fcp_rsp) +
6427                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6428
6429                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6430                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6431
6432                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6433                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6434         } else {
6435                 /*
6436                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6437                  * the FCP rsp, a BDE for each, and a BDE for up to
6438                  * cfg_sg_seg_cnt data segments.
6439                  */
6440                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6441                         sizeof(struct fcp_rsp) +
6442                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6443
6444                 /* Total BDEs in BPL for scsi_sg_list */
6445                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6446         }
6447
6448         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6449                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6450                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6451                         phba->cfg_total_seg_cnt);
6452
6453         phba->max_vpi = LPFC_MAX_VPI;
6454         /* This will be set to correct value after config_port mbox */
6455         phba->max_vports = 0;
6456
6457         /*
6458          * Initialize the SLI Layer to run with lpfc HBAs.
6459          */
6460         lpfc_sli_setup(phba);
6461         lpfc_sli_queue_init(phba);
6462
6463         /* Allocate device driver memory */
6464         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6465                 return -ENOMEM;
6466
6467         phba->lpfc_sg_dma_buf_pool =
6468                 dma_pool_create("lpfc_sg_dma_buf_pool",
6469                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6470                                 BPL_ALIGN_SZ, 0);
6471
6472         if (!phba->lpfc_sg_dma_buf_pool)
6473                 goto fail_free_mem;
6474
6475         phba->lpfc_cmd_rsp_buf_pool =
6476                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6477                                         &phba->pcidev->dev,
6478                                         sizeof(struct fcp_cmnd) +
6479                                         sizeof(struct fcp_rsp),
6480                                         BPL_ALIGN_SZ, 0);
6481
6482         if (!phba->lpfc_cmd_rsp_buf_pool)
6483                 goto fail_free_dma_buf_pool;
6484
6485         /*
6486          * Enable sr-iov virtual functions if supported and configured
6487          * through the module parameter.
6488          */
6489         if (phba->cfg_sriov_nr_virtfn > 0) {
6490                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6491                                                  phba->cfg_sriov_nr_virtfn);
6492                 if (rc) {
6493                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6494                                         "2808 Requested number of SR-IOV "
6495                                         "virtual functions (%d) is not "
6496                                         "supported\n",
6497                                         phba->cfg_sriov_nr_virtfn);
6498                         phba->cfg_sriov_nr_virtfn = 0;
6499                 }
6500         }
6501
6502         return 0;
6503
6504 fail_free_dma_buf_pool:
6505         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6506         phba->lpfc_sg_dma_buf_pool = NULL;
6507 fail_free_mem:
6508         lpfc_mem_free(phba);
6509         return -ENOMEM;
6510 }
6511
6512 /**
6513  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6514  * @phba: pointer to lpfc hba data structure.
6515  *
6516  * This routine is invoked to unset the driver internal resources set up
6517  * specific for supporting the SLI-3 HBA device it attached to.
6518  **/
6519 static void
6520 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6521 {
6522         /* Free device driver memory allocated */
6523         lpfc_mem_free_all(phba);
6524
6525         return;
6526 }
6527
6528 /**
6529  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6530  * @phba: pointer to lpfc hba data structure.
6531  *
6532  * This routine is invoked to set up the driver internal resources specific to
6533  * support the SLI-4 HBA device it attached to.
6534  *
6535  * Return codes
6536  *      0 - successful
6537  *      other values - error
6538  **/
6539 static int
6540 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6541 {
6542         LPFC_MBOXQ_t *mboxq;
6543         MAILBOX_t *mb;
6544         int rc, i, max_buf_size;
6545         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6546         struct lpfc_mqe *mqe;
6547         int longs;
6548         int extra;
6549         uint64_t wwn;
6550         u32 if_type;
6551         u32 if_fam;
6552
6553         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6554         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6555         phba->sli4_hba.curr_disp_cpu = 0;
6556
6557         /* Get all the module params for configuring this host */
6558         lpfc_get_cfgparam(phba);
6559
6560         /* Set up phase-1 common device driver resources */
6561         rc = lpfc_setup_driver_resource_phase1(phba);
6562         if (rc)
6563                 return -ENODEV;
6564
6565         /* Before proceed, wait for POST done and device ready */
6566         rc = lpfc_sli4_post_status_check(phba);
6567         if (rc)
6568                 return -ENODEV;
6569
6570         /* Allocate all driver workqueues here */
6571
6572         /* The lpfc_wq workqueue for deferred irq use */
6573         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6574
6575         /*
6576          * Initialize timers used by driver
6577          */
6578
6579         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6580
6581         /* FCF rediscover timer */
6582         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6583
6584         /*
6585          * Control structure for handling external multi-buffer mailbox
6586          * command pass-through.
6587          */
6588         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6589                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6590         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6591
6592         phba->max_vpi = LPFC_MAX_VPI;
6593
6594         /* This will be set to correct value after the read_config mbox */
6595         phba->max_vports = 0;
6596
6597         /* Program the default value of vlan_id and fc_map */
6598         phba->valid_vlan = 0;
6599         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6600         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6601         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6602
6603         /*
6604          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6605          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6606          * The WQ create will allocate the ring.
6607          */
6608
6609         /* Initialize buffer queue management fields */
6610         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6611         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6612         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6613
6614         /*
6615          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6616          */
6617         /* Initialize the Abort buffer list used by driver */
6618         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6619         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6620
6621         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6622                 /* Initialize the Abort nvme buffer list used by driver */
6623                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6624                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6625                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6626                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6627                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6628         }
6629
6630         /* This abort list used by worker thread */
6631         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6632         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6633
6634         /*
6635          * Initialize driver internal slow-path work queues
6636          */
6637
6638         /* Driver internel slow-path CQ Event pool */
6639         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6640         /* Response IOCB work queue list */
6641         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6642         /* Asynchronous event CQ Event work queue list */
6643         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6644         /* Fast-path XRI aborted CQ Event work queue list */
6645         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6646         /* Slow-path XRI aborted CQ Event work queue list */
6647         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6648         /* Receive queue CQ Event work queue list */
6649         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6650
6651         /* Initialize extent block lists. */
6652         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6653         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6654         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6655         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6656
6657         /* Initialize mboxq lists. If the early init routines fail
6658          * these lists need to be correctly initialized.
6659          */
6660         INIT_LIST_HEAD(&phba->sli.mboxq);
6661         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6662
6663         /* initialize optic_state to 0xFF */
6664         phba->sli4_hba.lnk_info.optic_state = 0xff;
6665
6666         /* Allocate device driver memory */
6667         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6668         if (rc)
6669                 return -ENOMEM;
6670
6671         /* IF Type 2 ports get initialized now. */
6672         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6673             LPFC_SLI_INTF_IF_TYPE_2) {
6674                 rc = lpfc_pci_function_reset(phba);
6675                 if (unlikely(rc)) {
6676                         rc = -ENODEV;
6677                         goto out_free_mem;
6678                 }
6679                 phba->temp_sensor_support = 1;
6680         }
6681
6682         /* Create the bootstrap mailbox command */
6683         rc = lpfc_create_bootstrap_mbox(phba);
6684         if (unlikely(rc))
6685                 goto out_free_mem;
6686
6687         /* Set up the host's endian order with the device. */
6688         rc = lpfc_setup_endian_order(phba);
6689         if (unlikely(rc))
6690                 goto out_free_bsmbx;
6691
6692         /* Set up the hba's configuration parameters. */
6693         rc = lpfc_sli4_read_config(phba);
6694         if (unlikely(rc))
6695                 goto out_free_bsmbx;
6696         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6697         if (unlikely(rc))
6698                 goto out_free_bsmbx;
6699
6700         /* IF Type 0 ports get initialized now. */
6701         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6702             LPFC_SLI_INTF_IF_TYPE_0) {
6703                 rc = lpfc_pci_function_reset(phba);
6704                 if (unlikely(rc))
6705                         goto out_free_bsmbx;
6706         }
6707
6708         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6709                                                        GFP_KERNEL);
6710         if (!mboxq) {
6711                 rc = -ENOMEM;
6712                 goto out_free_bsmbx;
6713         }
6714
6715         /* Check for NVMET being configured */
6716         phba->nvmet_support = 0;
6717         if (lpfc_enable_nvmet_cnt) {
6718
6719                 /* First get WWN of HBA instance */
6720                 lpfc_read_nv(phba, mboxq);
6721                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6722                 if (rc != MBX_SUCCESS) {
6723                         lpfc_printf_log(phba, KERN_ERR,
6724                                         LOG_TRACE_EVENT,
6725                                         "6016 Mailbox failed , mbxCmd x%x "
6726                                         "READ_NV, mbxStatus x%x\n",
6727                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6728                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6729                         mempool_free(mboxq, phba->mbox_mem_pool);
6730                         rc = -EIO;
6731                         goto out_free_bsmbx;
6732                 }
6733                 mb = &mboxq->u.mb;
6734                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6735                        sizeof(uint64_t));
6736                 wwn = cpu_to_be64(wwn);
6737                 phba->sli4_hba.wwnn.u.name = wwn;
6738                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6739                        sizeof(uint64_t));
6740                 /* wwn is WWPN of HBA instance */
6741                 wwn = cpu_to_be64(wwn);
6742                 phba->sli4_hba.wwpn.u.name = wwn;
6743
6744                 /* Check to see if it matches any module parameter */
6745                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6746                         if (wwn == lpfc_enable_nvmet[i]) {
6747 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6748                                 if (lpfc_nvmet_mem_alloc(phba))
6749                                         break;
6750
6751                                 phba->nvmet_support = 1; /* a match */
6752
6753                                 lpfc_printf_log(phba, KERN_ERR,
6754                                                 LOG_TRACE_EVENT,
6755                                                 "6017 NVME Target %016llx\n",
6756                                                 wwn);
6757 #else
6758                                 lpfc_printf_log(phba, KERN_ERR,
6759                                                 LOG_TRACE_EVENT,
6760                                                 "6021 Can't enable NVME Target."
6761                                                 " NVME_TARGET_FC infrastructure"
6762                                                 " is not in kernel\n");
6763 #endif
6764                                 /* Not supported for NVMET */
6765                                 phba->cfg_xri_rebalancing = 0;
6766                                 if (phba->irq_chann_mode == NHT_MODE) {
6767                                         phba->cfg_irq_chann =
6768                                                 phba->sli4_hba.num_present_cpu;
6769                                         phba->cfg_hdw_queue =
6770                                                 phba->sli4_hba.num_present_cpu;
6771                                         phba->irq_chann_mode = NORMAL_MODE;
6772                                 }
6773                                 break;
6774                         }
6775                 }
6776         }
6777
6778         lpfc_nvme_mod_param_dep(phba);
6779
6780         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6781         lpfc_supported_pages(mboxq);
6782         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6783         if (!rc) {
6784                 mqe = &mboxq->u.mqe;
6785                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6786                        LPFC_MAX_SUPPORTED_PAGES);
6787                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6788                         switch (pn_page[i]) {
6789                         case LPFC_SLI4_PARAMETERS:
6790                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6791                                 break;
6792                         default:
6793                                 break;
6794                         }
6795                 }
6796                 /* Read the port's SLI4 Parameters capabilities if supported. */
6797                 if (phba->sli4_hba.pc_sli4_params.supported)
6798                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6799                 if (rc) {
6800                         mempool_free(mboxq, phba->mbox_mem_pool);
6801                         rc = -EIO;
6802                         goto out_free_bsmbx;
6803                 }
6804         }
6805
6806         /*
6807          * Get sli4 parameters that override parameters from Port capabilities.
6808          * If this call fails, it isn't critical unless the SLI4 parameters come
6809          * back in conflict.
6810          */
6811         rc = lpfc_get_sli4_parameters(phba, mboxq);
6812         if (rc) {
6813                 if_type = bf_get(lpfc_sli_intf_if_type,
6814                                  &phba->sli4_hba.sli_intf);
6815                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6816                                 &phba->sli4_hba.sli_intf);
6817                 if (phba->sli4_hba.extents_in_use &&
6818                     phba->sli4_hba.rpi_hdrs_in_use) {
6819                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6820                                         "2999 Unsupported SLI4 Parameters "
6821                                         "Extents and RPI headers enabled.\n");
6822                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6823                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6824                                 mempool_free(mboxq, phba->mbox_mem_pool);
6825                                 rc = -EIO;
6826                                 goto out_free_bsmbx;
6827                         }
6828                 }
6829                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6830                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6831                         mempool_free(mboxq, phba->mbox_mem_pool);
6832                         rc = -EIO;
6833                         goto out_free_bsmbx;
6834                 }
6835         }
6836
6837         /*
6838          * 1 for cmd, 1 for rsp, NVME adds an extra one
6839          * for boundary conditions in its max_sgl_segment template.
6840          */
6841         extra = 2;
6842         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6843                 extra++;
6844
6845         /*
6846          * It doesn't matter what family our adapter is in, we are
6847          * limited to 2 Pages, 512 SGEs, for our SGL.
6848          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6849          */
6850         max_buf_size = (2 * SLI4_PAGE_SIZE);
6851
6852         /*
6853          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6854          * used to create the sg_dma_buf_pool must be calculated.
6855          */
6856         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6857                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6858
6859                 /*
6860                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6861                  * the FCP rsp, and a SGE. Sice we have no control
6862                  * over how many protection segments the SCSI Layer
6863                  * will hand us (ie: there could be one for every block
6864                  * in the IO), just allocate enough SGEs to accomidate
6865                  * our max amount and we need to limit lpfc_sg_seg_cnt
6866                  * to minimize the risk of running out.
6867                  */
6868                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6869                                 sizeof(struct fcp_rsp) + max_buf_size;
6870
6871                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6872                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6873
6874                 /*
6875                  * If supporting DIF, reduce the seg count for scsi to
6876                  * allow room for the DIF sges.
6877                  */
6878                 if (phba->cfg_enable_bg &&
6879                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6880                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6881                 else
6882                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6883
6884         } else {
6885                 /*
6886                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6887                  * the FCP rsp, a SGE for each, and a SGE for up to
6888                  * cfg_sg_seg_cnt data segments.
6889                  */
6890                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6891                                 sizeof(struct fcp_rsp) +
6892                                 ((phba->cfg_sg_seg_cnt + extra) *
6893                                 sizeof(struct sli4_sge));
6894
6895                 /* Total SGEs for scsi_sg_list */
6896                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6897                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6898
6899                 /*
6900                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6901                  * need to post 1 page for the SGL.
6902                  */
6903         }
6904
6905         if (phba->cfg_xpsgl && !phba->nvmet_support)
6906                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6907         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6908                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6909         else
6910                 phba->cfg_sg_dma_buf_size =
6911                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6912
6913         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6914                                sizeof(struct sli4_sge);
6915
6916         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6917         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6918                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6919                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6920                                         "6300 Reducing NVME sg segment "
6921                                         "cnt to %d\n",
6922                                         LPFC_MAX_NVME_SEG_CNT);
6923                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6924                 } else
6925                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6926         }
6927
6928         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6929                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6930                         "total:%d scsi:%d nvme:%d\n",
6931                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6932                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6933                         phba->cfg_nvme_seg_cnt);
6934
6935         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6936                 i = phba->cfg_sg_dma_buf_size;
6937         else
6938                 i = SLI4_PAGE_SIZE;
6939
6940         phba->lpfc_sg_dma_buf_pool =
6941                         dma_pool_create("lpfc_sg_dma_buf_pool",
6942                                         &phba->pcidev->dev,
6943                                         phba->cfg_sg_dma_buf_size,
6944                                         i, 0);
6945         if (!phba->lpfc_sg_dma_buf_pool)
6946                 goto out_free_bsmbx;
6947
6948         phba->lpfc_cmd_rsp_buf_pool =
6949                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6950                                         &phba->pcidev->dev,
6951                                         sizeof(struct fcp_cmnd) +
6952                                         sizeof(struct fcp_rsp),
6953                                         i, 0);
6954         if (!phba->lpfc_cmd_rsp_buf_pool)
6955                 goto out_free_sg_dma_buf;
6956
6957         mempool_free(mboxq, phba->mbox_mem_pool);
6958
6959         /* Verify OAS is supported */
6960         lpfc_sli4_oas_verify(phba);
6961
6962         /* Verify RAS support on adapter */
6963         lpfc_sli4_ras_init(phba);
6964
6965         /* Verify all the SLI4 queues */
6966         rc = lpfc_sli4_queue_verify(phba);
6967         if (rc)
6968                 goto out_free_cmd_rsp_buf;
6969
6970         /* Create driver internal CQE event pool */
6971         rc = lpfc_sli4_cq_event_pool_create(phba);
6972         if (rc)
6973                 goto out_free_cmd_rsp_buf;
6974
6975         /* Initialize sgl lists per host */
6976         lpfc_init_sgl_list(phba);
6977
6978         /* Allocate and initialize active sgl array */
6979         rc = lpfc_init_active_sgl_array(phba);
6980         if (rc) {
6981                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6982                                 "1430 Failed to initialize sgl list.\n");
6983                 goto out_destroy_cq_event_pool;
6984         }
6985         rc = lpfc_sli4_init_rpi_hdrs(phba);
6986         if (rc) {
6987                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6988                                 "1432 Failed to initialize rpi headers.\n");
6989                 goto out_free_active_sgl;
6990         }
6991
6992         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6993         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6994         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6995                                          GFP_KERNEL);
6996         if (!phba->fcf.fcf_rr_bmask) {
6997                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6998                                 "2759 Failed allocate memory for FCF round "
6999                                 "robin failover bmask\n");
7000                 rc = -ENOMEM;
7001                 goto out_remove_rpi_hdrs;
7002         }
7003
7004         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
7005                                             sizeof(struct lpfc_hba_eq_hdl),
7006                                             GFP_KERNEL);
7007         if (!phba->sli4_hba.hba_eq_hdl) {
7008                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7009                                 "2572 Failed allocate memory for "
7010                                 "fast-path per-EQ handle array\n");
7011                 rc = -ENOMEM;
7012                 goto out_free_fcf_rr_bmask;
7013         }
7014
7015         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
7016                                         sizeof(struct lpfc_vector_map_info),
7017                                         GFP_KERNEL);
7018         if (!phba->sli4_hba.cpu_map) {
7019                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7020                                 "3327 Failed allocate memory for msi-x "
7021                                 "interrupt vector mapping\n");
7022                 rc = -ENOMEM;
7023                 goto out_free_hba_eq_hdl;
7024         }
7025
7026         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
7027         if (!phba->sli4_hba.eq_info) {
7028                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7029                                 "3321 Failed allocation for per_cpu stats\n");
7030                 rc = -ENOMEM;
7031                 goto out_free_hba_cpu_map;
7032         }
7033
7034         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
7035                                            sizeof(*phba->sli4_hba.idle_stat),
7036                                            GFP_KERNEL);
7037         if (!phba->sli4_hba.idle_stat) {
7038                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7039                                 "3390 Failed allocation for idle_stat\n");
7040                 rc = -ENOMEM;
7041                 goto out_free_hba_eq_info;
7042         }
7043
7044 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7045         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
7046         if (!phba->sli4_hba.c_stat) {
7047                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7048                                 "3332 Failed allocating per cpu hdwq stats\n");
7049                 rc = -ENOMEM;
7050                 goto out_free_hba_idle_stat;
7051         }
7052 #endif
7053
7054         /*
7055          * Enable sr-iov virtual functions if supported and configured
7056          * through the module parameter.
7057          */
7058         if (phba->cfg_sriov_nr_virtfn > 0) {
7059                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7060                                                  phba->cfg_sriov_nr_virtfn);
7061                 if (rc) {
7062                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7063                                         "3020 Requested number of SR-IOV "
7064                                         "virtual functions (%d) is not "
7065                                         "supported\n",
7066                                         phba->cfg_sriov_nr_virtfn);
7067                         phba->cfg_sriov_nr_virtfn = 0;
7068                 }
7069         }
7070
7071         return 0;
7072
7073 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7074 out_free_hba_idle_stat:
7075         kfree(phba->sli4_hba.idle_stat);
7076 #endif
7077 out_free_hba_eq_info:
7078         free_percpu(phba->sli4_hba.eq_info);
7079 out_free_hba_cpu_map:
7080         kfree(phba->sli4_hba.cpu_map);
7081 out_free_hba_eq_hdl:
7082         kfree(phba->sli4_hba.hba_eq_hdl);
7083 out_free_fcf_rr_bmask:
7084         kfree(phba->fcf.fcf_rr_bmask);
7085 out_remove_rpi_hdrs:
7086         lpfc_sli4_remove_rpi_hdrs(phba);
7087 out_free_active_sgl:
7088         lpfc_free_active_sgl(phba);
7089 out_destroy_cq_event_pool:
7090         lpfc_sli4_cq_event_pool_destroy(phba);
7091 out_free_cmd_rsp_buf:
7092         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
7093         phba->lpfc_cmd_rsp_buf_pool = NULL;
7094 out_free_sg_dma_buf:
7095         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7096         phba->lpfc_sg_dma_buf_pool = NULL;
7097 out_free_bsmbx:
7098         lpfc_destroy_bootstrap_mbox(phba);
7099 out_free_mem:
7100         lpfc_mem_free(phba);
7101         return rc;
7102 }
7103
7104 /**
7105  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
7106  * @phba: pointer to lpfc hba data structure.
7107  *
7108  * This routine is invoked to unset the driver internal resources set up
7109  * specific for supporting the SLI-4 HBA device it attached to.
7110  **/
7111 static void
7112 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
7113 {
7114         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
7115
7116         free_percpu(phba->sli4_hba.eq_info);
7117 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
7118         free_percpu(phba->sli4_hba.c_stat);
7119 #endif
7120         kfree(phba->sli4_hba.idle_stat);
7121
7122         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
7123         kfree(phba->sli4_hba.cpu_map);
7124         phba->sli4_hba.num_possible_cpu = 0;
7125         phba->sli4_hba.num_present_cpu = 0;
7126         phba->sli4_hba.curr_disp_cpu = 0;
7127         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
7128
7129         /* Free memory allocated for fast-path work queue handles */
7130         kfree(phba->sli4_hba.hba_eq_hdl);
7131
7132         /* Free the allocated rpi headers. */
7133         lpfc_sli4_remove_rpi_hdrs(phba);
7134         lpfc_sli4_remove_rpis(phba);
7135
7136         /* Free eligible FCF index bmask */
7137         kfree(phba->fcf.fcf_rr_bmask);
7138
7139         /* Free the ELS sgl list */
7140         lpfc_free_active_sgl(phba);
7141         lpfc_free_els_sgl_list(phba);
7142         lpfc_free_nvmet_sgl_list(phba);
7143
7144         /* Free the completion queue EQ event pool */
7145         lpfc_sli4_cq_event_release_all(phba);
7146         lpfc_sli4_cq_event_pool_destroy(phba);
7147
7148         /* Release resource identifiers. */
7149         lpfc_sli4_dealloc_resource_identifiers(phba);
7150
7151         /* Free the bsmbx region. */
7152         lpfc_destroy_bootstrap_mbox(phba);
7153
7154         /* Free the SLI Layer memory with SLI4 HBAs */
7155         lpfc_mem_free_all(phba);
7156
7157         /* Free the current connect table */
7158         list_for_each_entry_safe(conn_entry, next_conn_entry,
7159                 &phba->fcf_conn_rec_list, list) {
7160                 list_del_init(&conn_entry->list);
7161                 kfree(conn_entry);
7162         }
7163
7164         return;
7165 }
7166
7167 /**
7168  * lpfc_init_api_table_setup - Set up init api function jump table
7169  * @phba: The hba struct for which this call is being executed.
7170  * @dev_grp: The HBA PCI-Device group number.
7171  *
7172  * This routine sets up the device INIT interface API function jump table
7173  * in @phba struct.
7174  *
7175  * Returns: 0 - success, -ENODEV - failure.
7176  **/
7177 int
7178 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7179 {
7180         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7181         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7182         phba->lpfc_selective_reset = lpfc_selective_reset;
7183         switch (dev_grp) {
7184         case LPFC_PCI_DEV_LP:
7185                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7186                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7187                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7188                 break;
7189         case LPFC_PCI_DEV_OC:
7190                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7191                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7192                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7193                 break;
7194         default:
7195                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7196                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7197                                 dev_grp);
7198                 return -ENODEV;
7199                 break;
7200         }
7201         return 0;
7202 }
7203
7204 /**
7205  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7206  * @phba: pointer to lpfc hba data structure.
7207  *
7208  * This routine is invoked to set up the driver internal resources after the
7209  * device specific resource setup to support the HBA device it attached to.
7210  *
7211  * Return codes
7212  *      0 - successful
7213  *      other values - error
7214  **/
7215 static int
7216 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7217 {
7218         int error;
7219
7220         /* Startup the kernel thread for this host adapter. */
7221         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7222                                           "lpfc_worker_%d", phba->brd_no);
7223         if (IS_ERR(phba->worker_thread)) {
7224                 error = PTR_ERR(phba->worker_thread);
7225                 return error;
7226         }
7227
7228         return 0;
7229 }
7230
7231 /**
7232  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7233  * @phba: pointer to lpfc hba data structure.
7234  *
7235  * This routine is invoked to unset the driver internal resources set up after
7236  * the device specific resource setup for supporting the HBA device it
7237  * attached to.
7238  **/
7239 static void
7240 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7241 {
7242         if (phba->wq) {
7243                 flush_workqueue(phba->wq);
7244                 destroy_workqueue(phba->wq);
7245                 phba->wq = NULL;
7246         }
7247
7248         /* Stop kernel worker thread */
7249         if (phba->worker_thread)
7250                 kthread_stop(phba->worker_thread);
7251 }
7252
7253 /**
7254  * lpfc_free_iocb_list - Free iocb list.
7255  * @phba: pointer to lpfc hba data structure.
7256  *
7257  * This routine is invoked to free the driver's IOCB list and memory.
7258  **/
7259 void
7260 lpfc_free_iocb_list(struct lpfc_hba *phba)
7261 {
7262         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7263
7264         spin_lock_irq(&phba->hbalock);
7265         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7266                                  &phba->lpfc_iocb_list, list) {
7267                 list_del(&iocbq_entry->list);
7268                 kfree(iocbq_entry);
7269                 phba->total_iocbq_bufs--;
7270         }
7271         spin_unlock_irq(&phba->hbalock);
7272
7273         return;
7274 }
7275
7276 /**
7277  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7278  * @phba: pointer to lpfc hba data structure.
7279  * @iocb_count: number of requested iocbs
7280  *
7281  * This routine is invoked to allocate and initizlize the driver's IOCB
7282  * list and set up the IOCB tag array accordingly.
7283  *
7284  * Return codes
7285  *      0 - successful
7286  *      other values - error
7287  **/
7288 int
7289 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7290 {
7291         struct lpfc_iocbq *iocbq_entry = NULL;
7292         uint16_t iotag;
7293         int i;
7294
7295         /* Initialize and populate the iocb list per host.  */
7296         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7297         for (i = 0; i < iocb_count; i++) {
7298                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7299                 if (iocbq_entry == NULL) {
7300                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7301                                 "expected %d count. Unloading driver.\n",
7302                                 __func__, i, iocb_count);
7303                         goto out_free_iocbq;
7304                 }
7305
7306                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7307                 if (iotag == 0) {
7308                         kfree(iocbq_entry);
7309                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7310                                 "Unloading driver.\n", __func__);
7311                         goto out_free_iocbq;
7312                 }
7313                 iocbq_entry->sli4_lxritag = NO_XRI;
7314                 iocbq_entry->sli4_xritag = NO_XRI;
7315
7316                 spin_lock_irq(&phba->hbalock);
7317                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7318                 phba->total_iocbq_bufs++;
7319                 spin_unlock_irq(&phba->hbalock);
7320         }
7321
7322         return 0;
7323
7324 out_free_iocbq:
7325         lpfc_free_iocb_list(phba);
7326
7327         return -ENOMEM;
7328 }
7329
7330 /**
7331  * lpfc_free_sgl_list - Free a given sgl list.
7332  * @phba: pointer to lpfc hba data structure.
7333  * @sglq_list: pointer to the head of sgl list.
7334  *
7335  * This routine is invoked to free a give sgl list and memory.
7336  **/
7337 void
7338 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7339 {
7340         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7341
7342         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7343                 list_del(&sglq_entry->list);
7344                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7345                 kfree(sglq_entry);
7346         }
7347 }
7348
7349 /**
7350  * lpfc_free_els_sgl_list - Free els sgl list.
7351  * @phba: pointer to lpfc hba data structure.
7352  *
7353  * This routine is invoked to free the driver's els sgl list and memory.
7354  **/
7355 static void
7356 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7357 {
7358         LIST_HEAD(sglq_list);
7359
7360         /* Retrieve all els sgls from driver list */
7361         spin_lock_irq(&phba->hbalock);
7362         spin_lock(&phba->sli4_hba.sgl_list_lock);
7363         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7364         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7365         spin_unlock_irq(&phba->hbalock);
7366
7367         /* Now free the sgl list */
7368         lpfc_free_sgl_list(phba, &sglq_list);
7369 }
7370
7371 /**
7372  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7373  * @phba: pointer to lpfc hba data structure.
7374  *
7375  * This routine is invoked to free the driver's nvmet sgl list and memory.
7376  **/
7377 static void
7378 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7379 {
7380         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7381         LIST_HEAD(sglq_list);
7382
7383         /* Retrieve all nvmet sgls from driver list */
7384         spin_lock_irq(&phba->hbalock);
7385         spin_lock(&phba->sli4_hba.sgl_list_lock);
7386         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7387         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7388         spin_unlock_irq(&phba->hbalock);
7389
7390         /* Now free the sgl list */
7391         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7392                 list_del(&sglq_entry->list);
7393                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7394                 kfree(sglq_entry);
7395         }
7396
7397         /* Update the nvmet_xri_cnt to reflect no current sgls.
7398          * The next initialization cycle sets the count and allocates
7399          * the sgls over again.
7400          */
7401         phba->sli4_hba.nvmet_xri_cnt = 0;
7402 }
7403
7404 /**
7405  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7406  * @phba: pointer to lpfc hba data structure.
7407  *
7408  * This routine is invoked to allocate the driver's active sgl memory.
7409  * This array will hold the sglq_entry's for active IOs.
7410  **/
7411 static int
7412 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7413 {
7414         int size;
7415         size = sizeof(struct lpfc_sglq *);
7416         size *= phba->sli4_hba.max_cfg_param.max_xri;
7417
7418         phba->sli4_hba.lpfc_sglq_active_list =
7419                 kzalloc(size, GFP_KERNEL);
7420         if (!phba->sli4_hba.lpfc_sglq_active_list)
7421                 return -ENOMEM;
7422         return 0;
7423 }
7424
7425 /**
7426  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7427  * @phba: pointer to lpfc hba data structure.
7428  *
7429  * This routine is invoked to walk through the array of active sglq entries
7430  * and free all of the resources.
7431  * This is just a place holder for now.
7432  **/
7433 static void
7434 lpfc_free_active_sgl(struct lpfc_hba *phba)
7435 {
7436         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7437 }
7438
7439 /**
7440  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7441  * @phba: pointer to lpfc hba data structure.
7442  *
7443  * This routine is invoked to allocate and initizlize the driver's sgl
7444  * list and set up the sgl xritag tag array accordingly.
7445  *
7446  **/
7447 static void
7448 lpfc_init_sgl_list(struct lpfc_hba *phba)
7449 {
7450         /* Initialize and populate the sglq list per host/VF. */
7451         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7452         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7453         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7454         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7455
7456         /* els xri-sgl book keeping */
7457         phba->sli4_hba.els_xri_cnt = 0;
7458
7459         /* nvme xri-buffer book keeping */
7460         phba->sli4_hba.io_xri_cnt = 0;
7461 }
7462
7463 /**
7464  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7465  * @phba: pointer to lpfc hba data structure.
7466  *
7467  * This routine is invoked to post rpi header templates to the
7468  * port for those SLI4 ports that do not support extents.  This routine
7469  * posts a PAGE_SIZE memory region to the port to hold up to
7470  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7471  * and should be called only when interrupts are disabled.
7472  *
7473  * Return codes
7474  *      0 - successful
7475  *      -ERROR - otherwise.
7476  **/
7477 int
7478 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7479 {
7480         int rc = 0;
7481         struct lpfc_rpi_hdr *rpi_hdr;
7482
7483         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7484         if (!phba->sli4_hba.rpi_hdrs_in_use)
7485                 return rc;
7486         if (phba->sli4_hba.extents_in_use)
7487                 return -EIO;
7488
7489         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7490         if (!rpi_hdr) {
7491                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7492                                 "0391 Error during rpi post operation\n");
7493                 lpfc_sli4_remove_rpis(phba);
7494                 rc = -ENODEV;
7495         }
7496
7497         return rc;
7498 }
7499
7500 /**
7501  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7502  * @phba: pointer to lpfc hba data structure.
7503  *
7504  * This routine is invoked to allocate a single 4KB memory region to
7505  * support rpis and stores them in the phba.  This single region
7506  * provides support for up to 64 rpis.  The region is used globally
7507  * by the device.
7508  *
7509  * Returns:
7510  *   A valid rpi hdr on success.
7511  *   A NULL pointer on any failure.
7512  **/
7513 struct lpfc_rpi_hdr *
7514 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7515 {
7516         uint16_t rpi_limit, curr_rpi_range;
7517         struct lpfc_dmabuf *dmabuf;
7518         struct lpfc_rpi_hdr *rpi_hdr;
7519
7520         /*
7521          * If the SLI4 port supports extents, posting the rpi header isn't
7522          * required.  Set the expected maximum count and let the actual value
7523          * get set when extents are fully allocated.
7524          */
7525         if (!phba->sli4_hba.rpi_hdrs_in_use)
7526                 return NULL;
7527         if (phba->sli4_hba.extents_in_use)
7528                 return NULL;
7529
7530         /* The limit on the logical index is just the max_rpi count. */
7531         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7532
7533         spin_lock_irq(&phba->hbalock);
7534         /*
7535          * Establish the starting RPI in this header block.  The starting
7536          * rpi is normalized to a zero base because the physical rpi is
7537          * port based.
7538          */
7539         curr_rpi_range = phba->sli4_hba.next_rpi;
7540         spin_unlock_irq(&phba->hbalock);
7541
7542         /* Reached full RPI range */
7543         if (curr_rpi_range == rpi_limit)
7544                 return NULL;
7545
7546         /*
7547          * First allocate the protocol header region for the port.  The
7548          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7549          */
7550         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7551         if (!dmabuf)
7552                 return NULL;
7553
7554         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7555                                           LPFC_HDR_TEMPLATE_SIZE,
7556                                           &dmabuf->phys, GFP_KERNEL);
7557         if (!dmabuf->virt) {
7558                 rpi_hdr = NULL;
7559                 goto err_free_dmabuf;
7560         }
7561
7562         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7563                 rpi_hdr = NULL;
7564                 goto err_free_coherent;
7565         }
7566
7567         /* Save the rpi header data for cleanup later. */
7568         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7569         if (!rpi_hdr)
7570                 goto err_free_coherent;
7571
7572         rpi_hdr->dmabuf = dmabuf;
7573         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7574         rpi_hdr->page_count = 1;
7575         spin_lock_irq(&phba->hbalock);
7576
7577         /* The rpi_hdr stores the logical index only. */
7578         rpi_hdr->start_rpi = curr_rpi_range;
7579         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7580         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7581
7582         spin_unlock_irq(&phba->hbalock);
7583         return rpi_hdr;
7584
7585  err_free_coherent:
7586         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7587                           dmabuf->virt, dmabuf->phys);
7588  err_free_dmabuf:
7589         kfree(dmabuf);
7590         return NULL;
7591 }
7592
7593 /**
7594  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7595  * @phba: pointer to lpfc hba data structure.
7596  *
7597  * This routine is invoked to remove all memory resources allocated
7598  * to support rpis for SLI4 ports not supporting extents. This routine
7599  * presumes the caller has released all rpis consumed by fabric or port
7600  * logins and is prepared to have the header pages removed.
7601  **/
7602 void
7603 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7604 {
7605         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7606
7607         if (!phba->sli4_hba.rpi_hdrs_in_use)
7608                 goto exit;
7609
7610         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7611                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7612                 list_del(&rpi_hdr->list);
7613                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7614                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7615                 kfree(rpi_hdr->dmabuf);
7616                 kfree(rpi_hdr);
7617         }
7618  exit:
7619         /* There are no rpis available to the port now. */
7620         phba->sli4_hba.next_rpi = 0;
7621 }
7622
7623 /**
7624  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7625  * @pdev: pointer to pci device data structure.
7626  *
7627  * This routine is invoked to allocate the driver hba data structure for an
7628  * HBA device. If the allocation is successful, the phba reference to the
7629  * PCI device data structure is set.
7630  *
7631  * Return codes
7632  *      pointer to @phba - successful
7633  *      NULL - error
7634  **/
7635 static struct lpfc_hba *
7636 lpfc_hba_alloc(struct pci_dev *pdev)
7637 {
7638         struct lpfc_hba *phba;
7639
7640         /* Allocate memory for HBA structure */
7641         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7642         if (!phba) {
7643                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7644                 return NULL;
7645         }
7646
7647         /* Set reference to PCI device in HBA structure */
7648         phba->pcidev = pdev;
7649
7650         /* Assign an unused board number */
7651         phba->brd_no = lpfc_get_instance();
7652         if (phba->brd_no < 0) {
7653                 kfree(phba);
7654                 return NULL;
7655         }
7656         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7657
7658         spin_lock_init(&phba->ct_ev_lock);
7659         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7660
7661         return phba;
7662 }
7663
7664 /**
7665  * lpfc_hba_free - Free driver hba data structure with a device.
7666  * @phba: pointer to lpfc hba data structure.
7667  *
7668  * This routine is invoked to free the driver hba data structure with an
7669  * HBA device.
7670  **/
7671 static void
7672 lpfc_hba_free(struct lpfc_hba *phba)
7673 {
7674         if (phba->sli_rev == LPFC_SLI_REV4)
7675                 kfree(phba->sli4_hba.hdwq);
7676
7677         /* Release the driver assigned board number */
7678         idr_remove(&lpfc_hba_index, phba->brd_no);
7679
7680         /* Free memory allocated with sli3 rings */
7681         kfree(phba->sli.sli3_ring);
7682         phba->sli.sli3_ring = NULL;
7683
7684         kfree(phba);
7685         return;
7686 }
7687
7688 /**
7689  * lpfc_create_shost - Create hba physical port with associated scsi host.
7690  * @phba: pointer to lpfc hba data structure.
7691  *
7692  * This routine is invoked to create HBA physical port and associate a SCSI
7693  * host with it.
7694  *
7695  * Return codes
7696  *      0 - successful
7697  *      other values - error
7698  **/
7699 static int
7700 lpfc_create_shost(struct lpfc_hba *phba)
7701 {
7702         struct lpfc_vport *vport;
7703         struct Scsi_Host  *shost;
7704
7705         /* Initialize HBA FC structure */
7706         phba->fc_edtov = FF_DEF_EDTOV;
7707         phba->fc_ratov = FF_DEF_RATOV;
7708         phba->fc_altov = FF_DEF_ALTOV;
7709         phba->fc_arbtov = FF_DEF_ARBTOV;
7710
7711         atomic_set(&phba->sdev_cnt, 0);
7712         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7713         if (!vport)
7714                 return -ENODEV;
7715
7716         shost = lpfc_shost_from_vport(vport);
7717         phba->pport = vport;
7718
7719         if (phba->nvmet_support) {
7720                 /* Only 1 vport (pport) will support NVME target */
7721                 phba->targetport = NULL;
7722                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7723                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7724                                 "6076 NVME Target Found\n");
7725         }
7726
7727         lpfc_debugfs_initialize(vport);
7728         /* Put reference to SCSI host to driver's device private data */
7729         pci_set_drvdata(phba->pcidev, shost);
7730
7731         /*
7732          * At this point we are fully registered with PSA. In addition,
7733          * any initial discovery should be completed.
7734          */
7735         vport->load_flag |= FC_ALLOW_FDMI;
7736         if (phba->cfg_enable_SmartSAN ||
7737             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7738
7739                 /* Setup appropriate attribute masks */
7740                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7741                 if (phba->cfg_enable_SmartSAN)
7742                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7743                 else
7744                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7745         }
7746         return 0;
7747 }
7748
7749 /**
7750  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7751  * @phba: pointer to lpfc hba data structure.
7752  *
7753  * This routine is invoked to destroy HBA physical port and the associated
7754  * SCSI host.
7755  **/
7756 static void
7757 lpfc_destroy_shost(struct lpfc_hba *phba)
7758 {
7759         struct lpfc_vport *vport = phba->pport;
7760
7761         /* Destroy physical port that associated with the SCSI host */
7762         destroy_port(vport);
7763
7764         return;
7765 }
7766
7767 /**
7768  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7769  * @phba: pointer to lpfc hba data structure.
7770  * @shost: the shost to be used to detect Block guard settings.
7771  *
7772  * This routine sets up the local Block guard protocol settings for @shost.
7773  * This routine also allocates memory for debugging bg buffers.
7774  **/
7775 static void
7776 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7777 {
7778         uint32_t old_mask;
7779         uint32_t old_guard;
7780
7781         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7782                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7783                                 "1478 Registering BlockGuard with the "
7784                                 "SCSI layer\n");
7785
7786                 old_mask = phba->cfg_prot_mask;
7787                 old_guard = phba->cfg_prot_guard;
7788
7789                 /* Only allow supported values */
7790                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7791                         SHOST_DIX_TYPE0_PROTECTION |
7792                         SHOST_DIX_TYPE1_PROTECTION);
7793                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7794                                          SHOST_DIX_GUARD_CRC);
7795
7796                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7797                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7798                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7799
7800                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7801                         if ((old_mask != phba->cfg_prot_mask) ||
7802                                 (old_guard != phba->cfg_prot_guard))
7803                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7804                                         "1475 Registering BlockGuard with the "
7805                                         "SCSI layer: mask %d  guard %d\n",
7806                                         phba->cfg_prot_mask,
7807                                         phba->cfg_prot_guard);
7808
7809                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7810                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7811                 } else
7812                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7813                                 "1479 Not Registering BlockGuard with the SCSI "
7814                                 "layer, Bad protection parameters: %d %d\n",
7815                                 old_mask, old_guard);
7816         }
7817 }
7818
7819 /**
7820  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7821  * @phba: pointer to lpfc hba data structure.
7822  *
7823  * This routine is invoked to perform all the necessary post initialization
7824  * setup for the device.
7825  **/
7826 static void
7827 lpfc_post_init_setup(struct lpfc_hba *phba)
7828 {
7829         struct Scsi_Host  *shost;
7830         struct lpfc_adapter_event_header adapter_event;
7831
7832         /* Get the default values for Model Name and Description */
7833         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7834
7835         /*
7836          * hba setup may have changed the hba_queue_depth so we need to
7837          * adjust the value of can_queue.
7838          */
7839         shost = pci_get_drvdata(phba->pcidev);
7840         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7841
7842         lpfc_host_attrib_init(shost);
7843
7844         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7845                 spin_lock_irq(shost->host_lock);
7846                 lpfc_poll_start_timer(phba);
7847                 spin_unlock_irq(shost->host_lock);
7848         }
7849
7850         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7851                         "0428 Perform SCSI scan\n");
7852         /* Send board arrival event to upper layer */
7853         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7854         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7855         fc_host_post_vendor_event(shost, fc_get_event_number(),
7856                                   sizeof(adapter_event),
7857                                   (char *) &adapter_event,
7858                                   LPFC_NL_VENDOR_ID);
7859         return;
7860 }
7861
7862 /**
7863  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7864  * @phba: pointer to lpfc hba data structure.
7865  *
7866  * This routine is invoked to set up the PCI device memory space for device
7867  * with SLI-3 interface spec.
7868  *
7869  * Return codes
7870  *      0 - successful
7871  *      other values - error
7872  **/
7873 static int
7874 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7875 {
7876         struct pci_dev *pdev = phba->pcidev;
7877         unsigned long bar0map_len, bar2map_len;
7878         int i, hbq_count;
7879         void *ptr;
7880         int error;
7881
7882         if (!pdev)
7883                 return -ENODEV;
7884
7885         /* Set the device DMA mask size */
7886         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7887         if (error)
7888                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7889         if (error)
7890                 return error;
7891         error = -ENODEV;
7892
7893         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7894          * required by each mapping.
7895          */
7896         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7897         bar0map_len = pci_resource_len(pdev, 0);
7898
7899         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7900         bar2map_len = pci_resource_len(pdev, 2);
7901
7902         /* Map HBA SLIM to a kernel virtual address. */
7903         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7904         if (!phba->slim_memmap_p) {
7905                 dev_printk(KERN_ERR, &pdev->dev,
7906                            "ioremap failed for SLIM memory.\n");
7907                 goto out;
7908         }
7909
7910         /* Map HBA Control Registers to a kernel virtual address. */
7911         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7912         if (!phba->ctrl_regs_memmap_p) {
7913                 dev_printk(KERN_ERR, &pdev->dev,
7914                            "ioremap failed for HBA control registers.\n");
7915                 goto out_iounmap_slim;
7916         }
7917
7918         /* Allocate memory for SLI-2 structures */
7919         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7920                                                &phba->slim2p.phys, GFP_KERNEL);
7921         if (!phba->slim2p.virt)
7922                 goto out_iounmap;
7923
7924         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7925         phba->mbox_ext = (phba->slim2p.virt +
7926                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7927         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7928         phba->IOCBs = (phba->slim2p.virt +
7929                        offsetof(struct lpfc_sli2_slim, IOCBs));
7930
7931         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7932                                                  lpfc_sli_hbq_size(),
7933                                                  &phba->hbqslimp.phys,
7934                                                  GFP_KERNEL);
7935         if (!phba->hbqslimp.virt)
7936                 goto out_free_slim;
7937
7938         hbq_count = lpfc_sli_hbq_count();
7939         ptr = phba->hbqslimp.virt;
7940         for (i = 0; i < hbq_count; ++i) {
7941                 phba->hbqs[i].hbq_virt = ptr;
7942                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7943                 ptr += (lpfc_hbq_defs[i]->entry_count *
7944                         sizeof(struct lpfc_hbq_entry));
7945         }
7946         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7947         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7948
7949         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7950
7951         phba->MBslimaddr = phba->slim_memmap_p;
7952         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7953         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7954         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7955         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7956
7957         return 0;
7958
7959 out_free_slim:
7960         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7961                           phba->slim2p.virt, phba->slim2p.phys);
7962 out_iounmap:
7963         iounmap(phba->ctrl_regs_memmap_p);
7964 out_iounmap_slim:
7965         iounmap(phba->slim_memmap_p);
7966 out:
7967         return error;
7968 }
7969
7970 /**
7971  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7972  * @phba: pointer to lpfc hba data structure.
7973  *
7974  * This routine is invoked to unset the PCI device memory space for device
7975  * with SLI-3 interface spec.
7976  **/
7977 static void
7978 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7979 {
7980         struct pci_dev *pdev;
7981
7982         /* Obtain PCI device reference */
7983         if (!phba->pcidev)
7984                 return;
7985         else
7986                 pdev = phba->pcidev;
7987
7988         /* Free coherent DMA memory allocated */
7989         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7990                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7991         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7992                           phba->slim2p.virt, phba->slim2p.phys);
7993
7994         /* I/O memory unmap */
7995         iounmap(phba->ctrl_regs_memmap_p);
7996         iounmap(phba->slim_memmap_p);
7997
7998         return;
7999 }
8000
8001 /**
8002  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
8003  * @phba: pointer to lpfc hba data structure.
8004  *
8005  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
8006  * done and check status.
8007  *
8008  * Return 0 if successful, otherwise -ENODEV.
8009  **/
8010 int
8011 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
8012 {
8013         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
8014         struct lpfc_register reg_data;
8015         int i, port_error = 0;
8016         uint32_t if_type;
8017
8018         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
8019         memset(&reg_data, 0, sizeof(reg_data));
8020         if (!phba->sli4_hba.PSMPHRregaddr)
8021                 return -ENODEV;
8022
8023         /* Wait up to 30 seconds for the SLI Port POST done and ready */
8024         for (i = 0; i < 3000; i++) {
8025                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
8026                         &portsmphr_reg.word0) ||
8027                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
8028                         /* Port has a fatal POST error, break out */
8029                         port_error = -ENODEV;
8030                         break;
8031                 }
8032                 if (LPFC_POST_STAGE_PORT_READY ==
8033                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
8034                         break;
8035                 msleep(10);
8036         }
8037
8038         /*
8039          * If there was a port error during POST, then don't proceed with
8040          * other register reads as the data may not be valid.  Just exit.
8041          */
8042         if (port_error) {
8043                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8044                         "1408 Port Failed POST - portsmphr=0x%x, "
8045                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
8046                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
8047                         portsmphr_reg.word0,
8048                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
8049                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
8050                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
8051                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
8052                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
8053                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
8054                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
8055                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
8056         } else {
8057                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8058                                 "2534 Device Info: SLIFamily=0x%x, "
8059                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
8060                                 "SLIHint_2=0x%x, FT=0x%x\n",
8061                                 bf_get(lpfc_sli_intf_sli_family,
8062                                        &phba->sli4_hba.sli_intf),
8063                                 bf_get(lpfc_sli_intf_slirev,
8064                                        &phba->sli4_hba.sli_intf),
8065                                 bf_get(lpfc_sli_intf_if_type,
8066                                        &phba->sli4_hba.sli_intf),
8067                                 bf_get(lpfc_sli_intf_sli_hint1,
8068                                        &phba->sli4_hba.sli_intf),
8069                                 bf_get(lpfc_sli_intf_sli_hint2,
8070                                        &phba->sli4_hba.sli_intf),
8071                                 bf_get(lpfc_sli_intf_func_type,
8072                                        &phba->sli4_hba.sli_intf));
8073                 /*
8074                  * Check for other Port errors during the initialization
8075                  * process.  Fail the load if the port did not come up
8076                  * correctly.
8077                  */
8078                 if_type = bf_get(lpfc_sli_intf_if_type,
8079                                  &phba->sli4_hba.sli_intf);
8080                 switch (if_type) {
8081                 case LPFC_SLI_INTF_IF_TYPE_0:
8082                         phba->sli4_hba.ue_mask_lo =
8083                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
8084                         phba->sli4_hba.ue_mask_hi =
8085                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
8086                         uerrlo_reg.word0 =
8087                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
8088                         uerrhi_reg.word0 =
8089                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
8090                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
8091                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
8092                                 lpfc_printf_log(phba, KERN_ERR,
8093                                                 LOG_TRACE_EVENT,
8094                                                 "1422 Unrecoverable Error "
8095                                                 "Detected during POST "
8096                                                 "uerr_lo_reg=0x%x, "
8097                                                 "uerr_hi_reg=0x%x, "
8098                                                 "ue_mask_lo_reg=0x%x, "
8099                                                 "ue_mask_hi_reg=0x%x\n",
8100                                                 uerrlo_reg.word0,
8101                                                 uerrhi_reg.word0,
8102                                                 phba->sli4_hba.ue_mask_lo,
8103                                                 phba->sli4_hba.ue_mask_hi);
8104                                 port_error = -ENODEV;
8105                         }
8106                         break;
8107                 case LPFC_SLI_INTF_IF_TYPE_2:
8108                 case LPFC_SLI_INTF_IF_TYPE_6:
8109                         /* Final checks.  The port status should be clean. */
8110                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
8111                                 &reg_data.word0) ||
8112                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
8113                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
8114                                 phba->work_status[0] =
8115                                         readl(phba->sli4_hba.u.if_type2.
8116                                               ERR1regaddr);
8117                                 phba->work_status[1] =
8118                                         readl(phba->sli4_hba.u.if_type2.
8119                                               ERR2regaddr);
8120                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8121                                         "2888 Unrecoverable port error "
8122                                         "following POST: port status reg "
8123                                         "0x%x, port_smphr reg 0x%x, "
8124                                         "error 1=0x%x, error 2=0x%x\n",
8125                                         reg_data.word0,
8126                                         portsmphr_reg.word0,
8127                                         phba->work_status[0],
8128                                         phba->work_status[1]);
8129                                 port_error = -ENODEV;
8130                         }
8131                         break;
8132                 case LPFC_SLI_INTF_IF_TYPE_1:
8133                 default:
8134                         break;
8135                 }
8136         }
8137         return port_error;
8138 }
8139
8140 /**
8141  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8142  * @phba: pointer to lpfc hba data structure.
8143  * @if_type:  The SLI4 interface type getting configured.
8144  *
8145  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8146  * memory map.
8147  **/
8148 static void
8149 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8150 {
8151         switch (if_type) {
8152         case LPFC_SLI_INTF_IF_TYPE_0:
8153                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8154                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8155                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8156                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8157                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8158                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8159                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8160                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8161                 phba->sli4_hba.SLIINTFregaddr =
8162                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8163                 break;
8164         case LPFC_SLI_INTF_IF_TYPE_2:
8165                 phba->sli4_hba.u.if_type2.EQDregaddr =
8166                         phba->sli4_hba.conf_regs_memmap_p +
8167                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8168                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8169                         phba->sli4_hba.conf_regs_memmap_p +
8170                                                 LPFC_CTL_PORT_ER1_OFFSET;
8171                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8172                         phba->sli4_hba.conf_regs_memmap_p +
8173                                                 LPFC_CTL_PORT_ER2_OFFSET;
8174                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8175                         phba->sli4_hba.conf_regs_memmap_p +
8176                                                 LPFC_CTL_PORT_CTL_OFFSET;
8177                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8178                         phba->sli4_hba.conf_regs_memmap_p +
8179                                                 LPFC_CTL_PORT_STA_OFFSET;
8180                 phba->sli4_hba.SLIINTFregaddr =
8181                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8182                 phba->sli4_hba.PSMPHRregaddr =
8183                         phba->sli4_hba.conf_regs_memmap_p +
8184                                                 LPFC_CTL_PORT_SEM_OFFSET;
8185                 phba->sli4_hba.RQDBregaddr =
8186                         phba->sli4_hba.conf_regs_memmap_p +
8187                                                 LPFC_ULP0_RQ_DOORBELL;
8188                 phba->sli4_hba.WQDBregaddr =
8189                         phba->sli4_hba.conf_regs_memmap_p +
8190                                                 LPFC_ULP0_WQ_DOORBELL;
8191                 phba->sli4_hba.CQDBregaddr =
8192                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8193                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8194                 phba->sli4_hba.MQDBregaddr =
8195                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8196                 phba->sli4_hba.BMBXregaddr =
8197                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8198                 break;
8199         case LPFC_SLI_INTF_IF_TYPE_6:
8200                 phba->sli4_hba.u.if_type2.EQDregaddr =
8201                         phba->sli4_hba.conf_regs_memmap_p +
8202                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8203                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8204                         phba->sli4_hba.conf_regs_memmap_p +
8205                                                 LPFC_CTL_PORT_ER1_OFFSET;
8206                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8207                         phba->sli4_hba.conf_regs_memmap_p +
8208                                                 LPFC_CTL_PORT_ER2_OFFSET;
8209                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8210                         phba->sli4_hba.conf_regs_memmap_p +
8211                                                 LPFC_CTL_PORT_CTL_OFFSET;
8212                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8213                         phba->sli4_hba.conf_regs_memmap_p +
8214                                                 LPFC_CTL_PORT_STA_OFFSET;
8215                 phba->sli4_hba.PSMPHRregaddr =
8216                         phba->sli4_hba.conf_regs_memmap_p +
8217                                                 LPFC_CTL_PORT_SEM_OFFSET;
8218                 phba->sli4_hba.BMBXregaddr =
8219                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8220                 break;
8221         case LPFC_SLI_INTF_IF_TYPE_1:
8222         default:
8223                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8224                            "FATAL - unsupported SLI4 interface type - %d\n",
8225                            if_type);
8226                 break;
8227         }
8228 }
8229
8230 /**
8231  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8232  * @phba: pointer to lpfc hba data structure.
8233  * @if_type: sli if type to operate on.
8234  *
8235  * This routine is invoked to set up SLI4 BAR1 register memory map.
8236  **/
8237 static void
8238 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8239 {
8240         switch (if_type) {
8241         case LPFC_SLI_INTF_IF_TYPE_0:
8242                 phba->sli4_hba.PSMPHRregaddr =
8243                         phba->sli4_hba.ctrl_regs_memmap_p +
8244                         LPFC_SLIPORT_IF0_SMPHR;
8245                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8246                         LPFC_HST_ISR0;
8247                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8248                         LPFC_HST_IMR0;
8249                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8250                         LPFC_HST_ISCR0;
8251                 break;
8252         case LPFC_SLI_INTF_IF_TYPE_6:
8253                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8254                         LPFC_IF6_RQ_DOORBELL;
8255                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8256                         LPFC_IF6_WQ_DOORBELL;
8257                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8258                         LPFC_IF6_CQ_DOORBELL;
8259                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8260                         LPFC_IF6_EQ_DOORBELL;
8261                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8262                         LPFC_IF6_MQ_DOORBELL;
8263                 break;
8264         case LPFC_SLI_INTF_IF_TYPE_2:
8265         case LPFC_SLI_INTF_IF_TYPE_1:
8266         default:
8267                 dev_err(&phba->pcidev->dev,
8268                            "FATAL - unsupported SLI4 interface type - %d\n",
8269                            if_type);
8270                 break;
8271         }
8272 }
8273
8274 /**
8275  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8276  * @phba: pointer to lpfc hba data structure.
8277  * @vf: virtual function number
8278  *
8279  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8280  * based on the given viftual function number, @vf.
8281  *
8282  * Return 0 if successful, otherwise -ENODEV.
8283  **/
8284 static int
8285 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8286 {
8287         if (vf > LPFC_VIR_FUNC_MAX)
8288                 return -ENODEV;
8289
8290         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8291                                 vf * LPFC_VFR_PAGE_SIZE +
8292                                         LPFC_ULP0_RQ_DOORBELL);
8293         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8294                                 vf * LPFC_VFR_PAGE_SIZE +
8295                                         LPFC_ULP0_WQ_DOORBELL);
8296         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8297                                 vf * LPFC_VFR_PAGE_SIZE +
8298                                         LPFC_EQCQ_DOORBELL);
8299         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8300         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8301                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8302         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8303                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8304         return 0;
8305 }
8306
8307 /**
8308  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8309  * @phba: pointer to lpfc hba data structure.
8310  *
8311  * This routine is invoked to create the bootstrap mailbox
8312  * region consistent with the SLI-4 interface spec.  This
8313  * routine allocates all memory necessary to communicate
8314  * mailbox commands to the port and sets up all alignment
8315  * needs.  No locks are expected to be held when calling
8316  * this routine.
8317  *
8318  * Return codes
8319  *      0 - successful
8320  *      -ENOMEM - could not allocated memory.
8321  **/
8322 static int
8323 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8324 {
8325         uint32_t bmbx_size;
8326         struct lpfc_dmabuf *dmabuf;
8327         struct dma_address *dma_address;
8328         uint32_t pa_addr;
8329         uint64_t phys_addr;
8330
8331         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8332         if (!dmabuf)
8333                 return -ENOMEM;
8334
8335         /*
8336          * The bootstrap mailbox region is comprised of 2 parts
8337          * plus an alignment restriction of 16 bytes.
8338          */
8339         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8340         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8341                                           &dmabuf->phys, GFP_KERNEL);
8342         if (!dmabuf->virt) {
8343                 kfree(dmabuf);
8344                 return -ENOMEM;
8345         }
8346
8347         /*
8348          * Initialize the bootstrap mailbox pointers now so that the register
8349          * operations are simple later.  The mailbox dma address is required
8350          * to be 16-byte aligned.  Also align the virtual memory as each
8351          * maibox is copied into the bmbx mailbox region before issuing the
8352          * command to the port.
8353          */
8354         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8355         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8356
8357         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8358                                               LPFC_ALIGN_16_BYTE);
8359         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8360                                               LPFC_ALIGN_16_BYTE);
8361
8362         /*
8363          * Set the high and low physical addresses now.  The SLI4 alignment
8364          * requirement is 16 bytes and the mailbox is posted to the port
8365          * as two 30-bit addresses.  The other data is a bit marking whether
8366          * the 30-bit address is the high or low address.
8367          * Upcast bmbx aphys to 64bits so shift instruction compiles
8368          * clean on 32 bit machines.
8369          */
8370         dma_address = &phba->sli4_hba.bmbx.dma_address;
8371         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8372         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8373         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8374                                            LPFC_BMBX_BIT1_ADDR_HI);
8375
8376         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8377         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8378                                            LPFC_BMBX_BIT1_ADDR_LO);
8379         return 0;
8380 }
8381
8382 /**
8383  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8384  * @phba: pointer to lpfc hba data structure.
8385  *
8386  * This routine is invoked to teardown the bootstrap mailbox
8387  * region and release all host resources. This routine requires
8388  * the caller to ensure all mailbox commands recovered, no
8389  * additional mailbox comands are sent, and interrupts are disabled
8390  * before calling this routine.
8391  *
8392  **/
8393 static void
8394 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8395 {
8396         dma_free_coherent(&phba->pcidev->dev,
8397                           phba->sli4_hba.bmbx.bmbx_size,
8398                           phba->sli4_hba.bmbx.dmabuf->virt,
8399                           phba->sli4_hba.bmbx.dmabuf->phys);
8400
8401         kfree(phba->sli4_hba.bmbx.dmabuf);
8402         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8403 }
8404
8405 static const char * const lpfc_topo_to_str[] = {
8406         "Loop then P2P",
8407         "Loopback",
8408         "P2P Only",
8409         "Unsupported",
8410         "Loop Only",
8411         "Unsupported",
8412         "P2P then Loop",
8413 };
8414
8415 #define LINK_FLAGS_DEF  0x0
8416 #define LINK_FLAGS_P2P  0x1
8417 #define LINK_FLAGS_LOOP 0x2
8418 /**
8419  * lpfc_map_topology - Map the topology read from READ_CONFIG
8420  * @phba: pointer to lpfc hba data structure.
8421  * @rd_config: pointer to read config data
8422  *
8423  * This routine is invoked to map the topology values as read
8424  * from the read config mailbox command. If the persistent
8425  * topology feature is supported, the firmware will provide the
8426  * saved topology information to be used in INIT_LINK
8427  **/
8428 static void
8429 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8430 {
8431         u8 ptv, tf, pt;
8432
8433         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8434         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8435         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8436
8437         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8438                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8439                          ptv, tf, pt);
8440         if (!ptv) {
8441                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8442                                 "2019 FW does not support persistent topology "
8443                                 "Using driver parameter defined value [%s]",
8444                                 lpfc_topo_to_str[phba->cfg_topology]);
8445                 return;
8446         }
8447         /* FW supports persistent topology - override module parameter value */
8448         phba->hba_flag |= HBA_PERSISTENT_TOPO;
8449         switch (phba->pcidev->device) {
8450         case PCI_DEVICE_ID_LANCER_G7_FC:
8451         case PCI_DEVICE_ID_LANCER_G6_FC:
8452                 if (!tf) {
8453                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8454                                         ? FLAGS_TOPOLOGY_MODE_LOOP
8455                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
8456                 } else {
8457                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8458                 }
8459                 break;
8460         default:        /* G5 */
8461                 if (tf) {
8462                         /* If topology failover set - pt is '0' or '1' */
8463                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8464                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
8465                 } else {
8466                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8467                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
8468                                         : FLAGS_TOPOLOGY_MODE_LOOP);
8469                 }
8470                 break;
8471         }
8472         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8473                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8474                                 "2020 Using persistent topology value [%s]",
8475                                 lpfc_topo_to_str[phba->cfg_topology]);
8476         } else {
8477                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8478                                 "2021 Invalid topology values from FW "
8479                                 "Using driver parameter defined value [%s]",
8480                                 lpfc_topo_to_str[phba->cfg_topology]);
8481         }
8482 }
8483
8484 /**
8485  * lpfc_sli4_read_config - Get the config parameters.
8486  * @phba: pointer to lpfc hba data structure.
8487  *
8488  * This routine is invoked to read the configuration parameters from the HBA.
8489  * The configuration parameters are used to set the base and maximum values
8490  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8491  * allocation for the port.
8492  *
8493  * Return codes
8494  *      0 - successful
8495  *      -ENOMEM - No available memory
8496  *      -EIO - The mailbox failed to complete successfully.
8497  **/
8498 int
8499 lpfc_sli4_read_config(struct lpfc_hba *phba)
8500 {
8501         LPFC_MBOXQ_t *pmb;
8502         struct lpfc_mbx_read_config *rd_config;
8503         union  lpfc_sli4_cfg_shdr *shdr;
8504         uint32_t shdr_status, shdr_add_status;
8505         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8506         struct lpfc_rsrc_desc_fcfcoe *desc;
8507         char *pdesc_0;
8508         uint16_t forced_link_speed;
8509         uint32_t if_type, qmin;
8510         int length, i, rc = 0, rc2;
8511
8512         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8513         if (!pmb) {
8514                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8515                                 "2011 Unable to allocate memory for issuing "
8516                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8517                 return -ENOMEM;
8518         }
8519
8520         lpfc_read_config(phba, pmb);
8521
8522         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8523         if (rc != MBX_SUCCESS) {
8524                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8525                                 "2012 Mailbox failed , mbxCmd x%x "
8526                                 "READ_CONFIG, mbxStatus x%x\n",
8527                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8528                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8529                 rc = -EIO;
8530         } else {
8531                 rd_config = &pmb->u.mqe.un.rd_config;
8532                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8533                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8534                         phba->sli4_hba.lnk_info.lnk_tp =
8535                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8536                         phba->sli4_hba.lnk_info.lnk_no =
8537                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8538                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8539                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8540                                         phba->sli4_hba.lnk_info.lnk_tp,
8541                                         phba->sli4_hba.lnk_info.lnk_no);
8542                 } else
8543                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8544                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8545                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8546                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8547                         phba->bbcredit_support = 1;
8548                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8549                 }
8550
8551                 phba->sli4_hba.conf_trunk =
8552                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8553                 phba->sli4_hba.extents_in_use =
8554                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8555                 phba->sli4_hba.max_cfg_param.max_xri =
8556                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8557                 /* Reduce resource usage in kdump environment */
8558                 if (is_kdump_kernel() &&
8559                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8560                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8561                 phba->sli4_hba.max_cfg_param.xri_base =
8562                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8563                 phba->sli4_hba.max_cfg_param.max_vpi =
8564                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8565                 /* Limit the max we support */
8566                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8567                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8568                 phba->sli4_hba.max_cfg_param.vpi_base =
8569                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8570                 phba->sli4_hba.max_cfg_param.max_rpi =
8571                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8572                 phba->sli4_hba.max_cfg_param.rpi_base =
8573                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8574                 phba->sli4_hba.max_cfg_param.max_vfi =
8575                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8576                 phba->sli4_hba.max_cfg_param.vfi_base =
8577                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8578                 phba->sli4_hba.max_cfg_param.max_fcfi =
8579                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8580                 phba->sli4_hba.max_cfg_param.max_eq =
8581                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8582                 phba->sli4_hba.max_cfg_param.max_rq =
8583                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8584                 phba->sli4_hba.max_cfg_param.max_wq =
8585                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8586                 phba->sli4_hba.max_cfg_param.max_cq =
8587                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8588                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8589                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8590                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8591                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8592                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8593                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8594                 phba->max_vports = phba->max_vpi;
8595                 lpfc_map_topology(phba, rd_config);
8596                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8597                                 "2003 cfg params Extents? %d "
8598                                 "XRI(B:%d M:%d), "
8599                                 "VPI(B:%d M:%d) "
8600                                 "VFI(B:%d M:%d) "
8601                                 "RPI(B:%d M:%d) "
8602                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
8603                                 phba->sli4_hba.extents_in_use,
8604                                 phba->sli4_hba.max_cfg_param.xri_base,
8605                                 phba->sli4_hba.max_cfg_param.max_xri,
8606                                 phba->sli4_hba.max_cfg_param.vpi_base,
8607                                 phba->sli4_hba.max_cfg_param.max_vpi,
8608                                 phba->sli4_hba.max_cfg_param.vfi_base,
8609                                 phba->sli4_hba.max_cfg_param.max_vfi,
8610                                 phba->sli4_hba.max_cfg_param.rpi_base,
8611                                 phba->sli4_hba.max_cfg_param.max_rpi,
8612                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8613                                 phba->sli4_hba.max_cfg_param.max_eq,
8614                                 phba->sli4_hba.max_cfg_param.max_cq,
8615                                 phba->sli4_hba.max_cfg_param.max_wq,
8616                                 phba->sli4_hba.max_cfg_param.max_rq,
8617                                 phba->lmt);
8618
8619                 /*
8620                  * Calculate queue resources based on how
8621                  * many WQ/CQ/EQs are available.
8622                  */
8623                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8624                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8625                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8626                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8627                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8628                 /*
8629                  * Whats left after this can go toward NVME / FCP.
8630                  * The minus 4 accounts for ELS, NVME LS, MBOX
8631                  * plus one extra. When configured for
8632                  * NVMET, FCP io channel WQs are not created.
8633                  */
8634                 qmin -= 4;
8635
8636                 /* Check to see if there is enough for NVME */
8637                 if ((phba->cfg_irq_chann > qmin) ||
8638                     (phba->cfg_hdw_queue > qmin)) {
8639                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8640                                         "2005 Reducing Queues - "
8641                                         "FW resource limitation: "
8642                                         "WQ %d CQ %d EQ %d: min %d: "
8643                                         "IRQ %d HDWQ %d\n",
8644                                         phba->sli4_hba.max_cfg_param.max_wq,
8645                                         phba->sli4_hba.max_cfg_param.max_cq,
8646                                         phba->sli4_hba.max_cfg_param.max_eq,
8647                                         qmin, phba->cfg_irq_chann,
8648                                         phba->cfg_hdw_queue);
8649
8650                         if (phba->cfg_irq_chann > qmin)
8651                                 phba->cfg_irq_chann = qmin;
8652                         if (phba->cfg_hdw_queue > qmin)
8653                                 phba->cfg_hdw_queue = qmin;
8654                 }
8655         }
8656
8657         if (rc)
8658                 goto read_cfg_out;
8659
8660         /* Update link speed if forced link speed is supported */
8661         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8662         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8663                 forced_link_speed =
8664                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8665                 if (forced_link_speed) {
8666                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8667
8668                         switch (forced_link_speed) {
8669                         case LINK_SPEED_1G:
8670                                 phba->cfg_link_speed =
8671                                         LPFC_USER_LINK_SPEED_1G;
8672                                 break;
8673                         case LINK_SPEED_2G:
8674                                 phba->cfg_link_speed =
8675                                         LPFC_USER_LINK_SPEED_2G;
8676                                 break;
8677                         case LINK_SPEED_4G:
8678                                 phba->cfg_link_speed =
8679                                         LPFC_USER_LINK_SPEED_4G;
8680                                 break;
8681                         case LINK_SPEED_8G:
8682                                 phba->cfg_link_speed =
8683                                         LPFC_USER_LINK_SPEED_8G;
8684                                 break;
8685                         case LINK_SPEED_10G:
8686                                 phba->cfg_link_speed =
8687                                         LPFC_USER_LINK_SPEED_10G;
8688                                 break;
8689                         case LINK_SPEED_16G:
8690                                 phba->cfg_link_speed =
8691                                         LPFC_USER_LINK_SPEED_16G;
8692                                 break;
8693                         case LINK_SPEED_32G:
8694                                 phba->cfg_link_speed =
8695                                         LPFC_USER_LINK_SPEED_32G;
8696                                 break;
8697                         case LINK_SPEED_64G:
8698                                 phba->cfg_link_speed =
8699                                         LPFC_USER_LINK_SPEED_64G;
8700                                 break;
8701                         case 0xffff:
8702                                 phba->cfg_link_speed =
8703                                         LPFC_USER_LINK_SPEED_AUTO;
8704                                 break;
8705                         default:
8706                                 lpfc_printf_log(phba, KERN_ERR,
8707                                                 LOG_TRACE_EVENT,
8708                                                 "0047 Unrecognized link "
8709                                                 "speed : %d\n",
8710                                                 forced_link_speed);
8711                                 phba->cfg_link_speed =
8712                                         LPFC_USER_LINK_SPEED_AUTO;
8713                         }
8714                 }
8715         }
8716
8717         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8718         length = phba->sli4_hba.max_cfg_param.max_xri -
8719                         lpfc_sli4_get_els_iocb_cnt(phba);
8720         if (phba->cfg_hba_queue_depth > length) {
8721                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8722                                 "3361 HBA queue depth changed from %d to %d\n",
8723                                 phba->cfg_hba_queue_depth, length);
8724                 phba->cfg_hba_queue_depth = length;
8725         }
8726
8727         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8728             LPFC_SLI_INTF_IF_TYPE_2)
8729                 goto read_cfg_out;
8730
8731         /* get the pf# and vf# for SLI4 if_type 2 port */
8732         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8733                   sizeof(struct lpfc_sli4_cfg_mhdr));
8734         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8735                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8736                          length, LPFC_SLI4_MBX_EMBED);
8737
8738         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8739         shdr = (union lpfc_sli4_cfg_shdr *)
8740                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8741         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8742         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8743         if (rc2 || shdr_status || shdr_add_status) {
8744                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8745                                 "3026 Mailbox failed , mbxCmd x%x "
8746                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8747                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8748                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8749                 goto read_cfg_out;
8750         }
8751
8752         /* search for fc_fcoe resrouce descriptor */
8753         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8754
8755         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8756         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8757         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8758         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8759                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8760         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8761                 goto read_cfg_out;
8762
8763         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8764                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8765                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8766                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8767                         phba->sli4_hba.iov.pf_number =
8768                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8769                         phba->sli4_hba.iov.vf_number =
8770                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8771                         break;
8772                 }
8773         }
8774
8775         if (i < LPFC_RSRC_DESC_MAX_NUM)
8776                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8777                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8778                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8779                                 phba->sli4_hba.iov.vf_number);
8780         else
8781                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8782                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8783                                 "Resource Descriptor:x%x\n",
8784                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8785
8786 read_cfg_out:
8787         mempool_free(pmb, phba->mbox_mem_pool);
8788         return rc;
8789 }
8790
8791 /**
8792  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8793  * @phba: pointer to lpfc hba data structure.
8794  *
8795  * This routine is invoked to setup the port-side endian order when
8796  * the port if_type is 0.  This routine has no function for other
8797  * if_types.
8798  *
8799  * Return codes
8800  *      0 - successful
8801  *      -ENOMEM - No available memory
8802  *      -EIO - The mailbox failed to complete successfully.
8803  **/
8804 static int
8805 lpfc_setup_endian_order(struct lpfc_hba *phba)
8806 {
8807         LPFC_MBOXQ_t *mboxq;
8808         uint32_t if_type, rc = 0;
8809         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8810                                       HOST_ENDIAN_HIGH_WORD1};
8811
8812         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8813         switch (if_type) {
8814         case LPFC_SLI_INTF_IF_TYPE_0:
8815                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8816                                                        GFP_KERNEL);
8817                 if (!mboxq) {
8818                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8819                                         "0492 Unable to allocate memory for "
8820                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8821                                         "command\n");
8822                         return -ENOMEM;
8823                 }
8824
8825                 /*
8826                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8827                  * two words to contain special data values and no other data.
8828                  */
8829                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8830                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8831                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8832                 if (rc != MBX_SUCCESS) {
8833                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8834                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8835                                         "failed with status x%x\n",
8836                                         rc);
8837                         rc = -EIO;
8838                 }
8839                 mempool_free(mboxq, phba->mbox_mem_pool);
8840                 break;
8841         case LPFC_SLI_INTF_IF_TYPE_6:
8842         case LPFC_SLI_INTF_IF_TYPE_2:
8843         case LPFC_SLI_INTF_IF_TYPE_1:
8844         default:
8845                 break;
8846         }
8847         return rc;
8848 }
8849
8850 /**
8851  * lpfc_sli4_queue_verify - Verify and update EQ counts
8852  * @phba: pointer to lpfc hba data structure.
8853  *
8854  * This routine is invoked to check the user settable queue counts for EQs.
8855  * After this routine is called the counts will be set to valid values that
8856  * adhere to the constraints of the system's interrupt vectors and the port's
8857  * queue resources.
8858  *
8859  * Return codes
8860  *      0 - successful
8861  *      -ENOMEM - No available memory
8862  **/
8863 static int
8864 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8865 {
8866         /*
8867          * Sanity check for configured queue parameters against the run-time
8868          * device parameters
8869          */
8870
8871         if (phba->nvmet_support) {
8872                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8873                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8874                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8875                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8876         }
8877
8878         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8879                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8880                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8881                         phba->cfg_nvmet_mrq);
8882
8883         /* Get EQ depth from module parameter, fake the default for now */
8884         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8885         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8886
8887         /* Get CQ depth from module parameter, fake the default for now */
8888         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8889         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8890         return 0;
8891 }
8892
8893 static int
8894 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8895 {
8896         struct lpfc_queue *qdesc;
8897         u32 wqesize;
8898         int cpu;
8899
8900         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8901         /* Create Fast Path IO CQs */
8902         if (phba->enab_exp_wqcq_pages)
8903                 /* Increase the CQ size when WQEs contain an embedded cdb */
8904                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8905                                               phba->sli4_hba.cq_esize,
8906                                               LPFC_CQE_EXP_COUNT, cpu);
8907
8908         else
8909                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8910                                               phba->sli4_hba.cq_esize,
8911                                               phba->sli4_hba.cq_ecount, cpu);
8912         if (!qdesc) {
8913                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8914                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
8915                                 idx);
8916                 return 1;
8917         }
8918         qdesc->qe_valid = 1;
8919         qdesc->hdwq = idx;
8920         qdesc->chann = cpu;
8921         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8922
8923         /* Create Fast Path IO WQs */
8924         if (phba->enab_exp_wqcq_pages) {
8925                 /* Increase the WQ size when WQEs contain an embedded cdb */
8926                 wqesize = (phba->fcp_embed_io) ?
8927                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8928                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8929                                               wqesize,
8930                                               LPFC_WQE_EXP_COUNT, cpu);
8931         } else
8932                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8933                                               phba->sli4_hba.wq_esize,
8934                                               phba->sli4_hba.wq_ecount, cpu);
8935
8936         if (!qdesc) {
8937                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8938                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8939                                 idx);
8940                 return 1;
8941         }
8942         qdesc->hdwq = idx;
8943         qdesc->chann = cpu;
8944         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8945         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8946         return 0;
8947 }
8948
8949 /**
8950  * lpfc_sli4_queue_create - Create all the SLI4 queues
8951  * @phba: pointer to lpfc hba data structure.
8952  *
8953  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8954  * operation. For each SLI4 queue type, the parameters such as queue entry
8955  * count (queue depth) shall be taken from the module parameter. For now,
8956  * we just use some constant number as place holder.
8957  *
8958  * Return codes
8959  *      0 - successful
8960  *      -ENOMEM - No availble memory
8961  *      -EIO - The mailbox failed to complete successfully.
8962  **/
8963 int
8964 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8965 {
8966         struct lpfc_queue *qdesc;
8967         int idx, cpu, eqcpu;
8968         struct lpfc_sli4_hdw_queue *qp;
8969         struct lpfc_vector_map_info *cpup;
8970         struct lpfc_vector_map_info *eqcpup;
8971         struct lpfc_eq_intr_info *eqi;
8972
8973         /*
8974          * Create HBA Record arrays.
8975          * Both NVME and FCP will share that same vectors / EQs
8976          */
8977         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8978         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8979         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8980         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8981         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8982         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8983         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8984         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8985         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8986         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8987
8988         if (!phba->sli4_hba.hdwq) {
8989                 phba->sli4_hba.hdwq = kcalloc(
8990                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8991                         GFP_KERNEL);
8992                 if (!phba->sli4_hba.hdwq) {
8993                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8994                                         "6427 Failed allocate memory for "
8995                                         "fast-path Hardware Queue array\n");
8996                         goto out_error;
8997                 }
8998                 /* Prepare hardware queues to take IO buffers */
8999                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9000                         qp = &phba->sli4_hba.hdwq[idx];
9001                         spin_lock_init(&qp->io_buf_list_get_lock);
9002                         spin_lock_init(&qp->io_buf_list_put_lock);
9003                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
9004                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
9005                         qp->get_io_bufs = 0;
9006                         qp->put_io_bufs = 0;
9007                         qp->total_io_bufs = 0;
9008                         spin_lock_init(&qp->abts_io_buf_list_lock);
9009                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
9010                         qp->abts_scsi_io_bufs = 0;
9011                         qp->abts_nvme_io_bufs = 0;
9012                         INIT_LIST_HEAD(&qp->sgl_list);
9013                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
9014                         spin_lock_init(&qp->hdwq_lock);
9015                 }
9016         }
9017
9018         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9019                 if (phba->nvmet_support) {
9020                         phba->sli4_hba.nvmet_cqset = kcalloc(
9021                                         phba->cfg_nvmet_mrq,
9022                                         sizeof(struct lpfc_queue *),
9023                                         GFP_KERNEL);
9024                         if (!phba->sli4_hba.nvmet_cqset) {
9025                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9026                                         "3121 Fail allocate memory for "
9027                                         "fast-path CQ set array\n");
9028                                 goto out_error;
9029                         }
9030                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
9031                                         phba->cfg_nvmet_mrq,
9032                                         sizeof(struct lpfc_queue *),
9033                                         GFP_KERNEL);
9034                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
9035                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9036                                         "3122 Fail allocate memory for "
9037                                         "fast-path RQ set hdr array\n");
9038                                 goto out_error;
9039                         }
9040                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
9041                                         phba->cfg_nvmet_mrq,
9042                                         sizeof(struct lpfc_queue *),
9043                                         GFP_KERNEL);
9044                         if (!phba->sli4_hba.nvmet_mrq_data) {
9045                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9046                                         "3124 Fail allocate memory for "
9047                                         "fast-path RQ set data array\n");
9048                                 goto out_error;
9049                         }
9050                 }
9051         }
9052
9053         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9054
9055         /* Create HBA Event Queues (EQs) */
9056         for_each_present_cpu(cpu) {
9057                 /* We only want to create 1 EQ per vector, even though
9058                  * multiple CPUs might be using that vector. so only
9059                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
9060                  */
9061                 cpup = &phba->sli4_hba.cpu_map[cpu];
9062                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9063                         continue;
9064
9065                 /* Get a ptr to the Hardware Queue associated with this CPU */
9066                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9067
9068                 /* Allocate an EQ */
9069                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9070                                               phba->sli4_hba.eq_esize,
9071                                               phba->sli4_hba.eq_ecount, cpu);
9072                 if (!qdesc) {
9073                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9074                                         "0497 Failed allocate EQ (%d)\n",
9075                                         cpup->hdwq);
9076                         goto out_error;
9077                 }
9078                 qdesc->qe_valid = 1;
9079                 qdesc->hdwq = cpup->hdwq;
9080                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
9081                 qdesc->last_cpu = qdesc->chann;
9082
9083                 /* Save the allocated EQ in the Hardware Queue */
9084                 qp->hba_eq = qdesc;
9085
9086                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
9087                 list_add(&qdesc->cpu_list, &eqi->list);
9088         }
9089
9090         /* Now we need to populate the other Hardware Queues, that share
9091          * an IRQ vector, with the associated EQ ptr.
9092          */
9093         for_each_present_cpu(cpu) {
9094                 cpup = &phba->sli4_hba.cpu_map[cpu];
9095
9096                 /* Check for EQ already allocated in previous loop */
9097                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
9098                         continue;
9099
9100                 /* Check for multiple CPUs per hdwq */
9101                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
9102                 if (qp->hba_eq)
9103                         continue;
9104
9105                 /* We need to share an EQ for this hdwq */
9106                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
9107                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
9108                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
9109         }
9110
9111         /* Allocate IO Path SLI4 CQ/WQs */
9112         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9113                 if (lpfc_alloc_io_wq_cq(phba, idx))
9114                         goto out_error;
9115         }
9116
9117         if (phba->nvmet_support) {
9118                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9119                         cpu = lpfc_find_cpu_handle(phba, idx,
9120                                                    LPFC_FIND_BY_HDWQ);
9121                         qdesc = lpfc_sli4_queue_alloc(phba,
9122                                                       LPFC_DEFAULT_PAGE_SIZE,
9123                                                       phba->sli4_hba.cq_esize,
9124                                                       phba->sli4_hba.cq_ecount,
9125                                                       cpu);
9126                         if (!qdesc) {
9127                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9128                                                 "3142 Failed allocate NVME "
9129                                                 "CQ Set (%d)\n", idx);
9130                                 goto out_error;
9131                         }
9132                         qdesc->qe_valid = 1;
9133                         qdesc->hdwq = idx;
9134                         qdesc->chann = cpu;
9135                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9136                 }
9137         }
9138
9139         /*
9140          * Create Slow Path Completion Queues (CQs)
9141          */
9142
9143         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9144         /* Create slow-path Mailbox Command Complete Queue */
9145         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9146                                       phba->sli4_hba.cq_esize,
9147                                       phba->sli4_hba.cq_ecount, cpu);
9148         if (!qdesc) {
9149                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9150                                 "0500 Failed allocate slow-path mailbox CQ\n");
9151                 goto out_error;
9152         }
9153         qdesc->qe_valid = 1;
9154         phba->sli4_hba.mbx_cq = qdesc;
9155
9156         /* Create slow-path ELS Complete Queue */
9157         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9158                                       phba->sli4_hba.cq_esize,
9159                                       phba->sli4_hba.cq_ecount, cpu);
9160         if (!qdesc) {
9161                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9162                                 "0501 Failed allocate slow-path ELS CQ\n");
9163                 goto out_error;
9164         }
9165         qdesc->qe_valid = 1;
9166         qdesc->chann = cpu;
9167         phba->sli4_hba.els_cq = qdesc;
9168
9169
9170         /*
9171          * Create Slow Path Work Queues (WQs)
9172          */
9173
9174         /* Create Mailbox Command Queue */
9175
9176         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9177                                       phba->sli4_hba.mq_esize,
9178                                       phba->sli4_hba.mq_ecount, cpu);
9179         if (!qdesc) {
9180                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9181                                 "0505 Failed allocate slow-path MQ\n");
9182                 goto out_error;
9183         }
9184         qdesc->chann = cpu;
9185         phba->sli4_hba.mbx_wq = qdesc;
9186
9187         /*
9188          * Create ELS Work Queues
9189          */
9190
9191         /* Create slow-path ELS Work Queue */
9192         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9193                                       phba->sli4_hba.wq_esize,
9194                                       phba->sli4_hba.wq_ecount, cpu);
9195         if (!qdesc) {
9196                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9197                                 "0504 Failed allocate slow-path ELS WQ\n");
9198                 goto out_error;
9199         }
9200         qdesc->chann = cpu;
9201         phba->sli4_hba.els_wq = qdesc;
9202         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9203
9204         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9205                 /* Create NVME LS Complete Queue */
9206                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9207                                               phba->sli4_hba.cq_esize,
9208                                               phba->sli4_hba.cq_ecount, cpu);
9209                 if (!qdesc) {
9210                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9211                                         "6079 Failed allocate NVME LS CQ\n");
9212                         goto out_error;
9213                 }
9214                 qdesc->chann = cpu;
9215                 qdesc->qe_valid = 1;
9216                 phba->sli4_hba.nvmels_cq = qdesc;
9217
9218                 /* Create NVME LS Work Queue */
9219                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9220                                               phba->sli4_hba.wq_esize,
9221                                               phba->sli4_hba.wq_ecount, cpu);
9222                 if (!qdesc) {
9223                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9224                                         "6080 Failed allocate NVME LS WQ\n");
9225                         goto out_error;
9226                 }
9227                 qdesc->chann = cpu;
9228                 phba->sli4_hba.nvmels_wq = qdesc;
9229                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9230         }
9231
9232         /*
9233          * Create Receive Queue (RQ)
9234          */
9235
9236         /* Create Receive Queue for header */
9237         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9238                                       phba->sli4_hba.rq_esize,
9239                                       phba->sli4_hba.rq_ecount, cpu);
9240         if (!qdesc) {
9241                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9242                                 "0506 Failed allocate receive HRQ\n");
9243                 goto out_error;
9244         }
9245         phba->sli4_hba.hdr_rq = qdesc;
9246
9247         /* Create Receive Queue for data */
9248         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9249                                       phba->sli4_hba.rq_esize,
9250                                       phba->sli4_hba.rq_ecount, cpu);
9251         if (!qdesc) {
9252                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9253                                 "0507 Failed allocate receive DRQ\n");
9254                 goto out_error;
9255         }
9256         phba->sli4_hba.dat_rq = qdesc;
9257
9258         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9259             phba->nvmet_support) {
9260                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9261                         cpu = lpfc_find_cpu_handle(phba, idx,
9262                                                    LPFC_FIND_BY_HDWQ);
9263                         /* Create NVMET Receive Queue for header */
9264                         qdesc = lpfc_sli4_queue_alloc(phba,
9265                                                       LPFC_DEFAULT_PAGE_SIZE,
9266                                                       phba->sli4_hba.rq_esize,
9267                                                       LPFC_NVMET_RQE_DEF_COUNT,
9268                                                       cpu);
9269                         if (!qdesc) {
9270                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9271                                                 "3146 Failed allocate "
9272                                                 "receive HRQ\n");
9273                                 goto out_error;
9274                         }
9275                         qdesc->hdwq = idx;
9276                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9277
9278                         /* Only needed for header of RQ pair */
9279                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9280                                                    GFP_KERNEL,
9281                                                    cpu_to_node(cpu));
9282                         if (qdesc->rqbp == NULL) {
9283                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9284                                                 "6131 Failed allocate "
9285                                                 "Header RQBP\n");
9286                                 goto out_error;
9287                         }
9288
9289                         /* Put list in known state in case driver load fails. */
9290                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9291
9292                         /* Create NVMET Receive Queue for data */
9293                         qdesc = lpfc_sli4_queue_alloc(phba,
9294                                                       LPFC_DEFAULT_PAGE_SIZE,
9295                                                       phba->sli4_hba.rq_esize,
9296                                                       LPFC_NVMET_RQE_DEF_COUNT,
9297                                                       cpu);
9298                         if (!qdesc) {
9299                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9300                                                 "3156 Failed allocate "
9301                                                 "receive DRQ\n");
9302                                 goto out_error;
9303                         }
9304                         qdesc->hdwq = idx;
9305                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9306                 }
9307         }
9308
9309         /* Clear NVME stats */
9310         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9311                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9312                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9313                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9314                 }
9315         }
9316
9317         /* Clear SCSI stats */
9318         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9319                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9320                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9321                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9322                 }
9323         }
9324
9325         return 0;
9326
9327 out_error:
9328         lpfc_sli4_queue_destroy(phba);
9329         return -ENOMEM;
9330 }
9331
9332 static inline void
9333 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9334 {
9335         if (*qp != NULL) {
9336                 lpfc_sli4_queue_free(*qp);
9337                 *qp = NULL;
9338         }
9339 }
9340
9341 static inline void
9342 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9343 {
9344         int idx;
9345
9346         if (*qs == NULL)
9347                 return;
9348
9349         for (idx = 0; idx < max; idx++)
9350                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9351
9352         kfree(*qs);
9353         *qs = NULL;
9354 }
9355
9356 static inline void
9357 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9358 {
9359         struct lpfc_sli4_hdw_queue *hdwq;
9360         struct lpfc_queue *eq;
9361         uint32_t idx;
9362
9363         hdwq = phba->sli4_hba.hdwq;
9364
9365         /* Loop thru all Hardware Queues */
9366         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9367                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9368                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9369                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9370                 hdwq[idx].hba_eq = NULL;
9371                 hdwq[idx].io_cq = NULL;
9372                 hdwq[idx].io_wq = NULL;
9373                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9374                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9375                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9376         }
9377         /* Loop thru all IRQ vectors */
9378         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9379                 /* Free the EQ corresponding to the IRQ vector */
9380                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9381                 lpfc_sli4_queue_free(eq);
9382                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9383         }
9384 }
9385
9386 /**
9387  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9388  * @phba: pointer to lpfc hba data structure.
9389  *
9390  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9391  * operation.
9392  *
9393  * Return codes
9394  *      0 - successful
9395  *      -ENOMEM - No available memory
9396  *      -EIO - The mailbox failed to complete successfully.
9397  **/
9398 void
9399 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9400 {
9401         /*
9402          * Set FREE_INIT before beginning to free the queues.
9403          * Wait until the users of queues to acknowledge to
9404          * release queues by clearing FREE_WAIT.
9405          */
9406         spin_lock_irq(&phba->hbalock);
9407         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9408         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9409                 spin_unlock_irq(&phba->hbalock);
9410                 msleep(20);
9411                 spin_lock_irq(&phba->hbalock);
9412         }
9413         spin_unlock_irq(&phba->hbalock);
9414
9415         lpfc_sli4_cleanup_poll_list(phba);
9416
9417         /* Release HBA eqs */
9418         if (phba->sli4_hba.hdwq)
9419                 lpfc_sli4_release_hdwq(phba);
9420
9421         if (phba->nvmet_support) {
9422                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9423                                          phba->cfg_nvmet_mrq);
9424
9425                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9426                                          phba->cfg_nvmet_mrq);
9427                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9428                                          phba->cfg_nvmet_mrq);
9429         }
9430
9431         /* Release mailbox command work queue */
9432         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9433
9434         /* Release ELS work queue */
9435         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9436
9437         /* Release ELS work queue */
9438         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9439
9440         /* Release unsolicited receive queue */
9441         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9442         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9443
9444         /* Release ELS complete queue */
9445         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9446
9447         /* Release NVME LS complete queue */
9448         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9449
9450         /* Release mailbox command complete queue */
9451         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9452
9453         /* Everything on this list has been freed */
9454         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9455
9456         /* Done with freeing the queues */
9457         spin_lock_irq(&phba->hbalock);
9458         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9459         spin_unlock_irq(&phba->hbalock);
9460 }
9461
9462 int
9463 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9464 {
9465         struct lpfc_rqb *rqbp;
9466         struct lpfc_dmabuf *h_buf;
9467         struct rqb_dmabuf *rqb_buffer;
9468
9469         rqbp = rq->rqbp;
9470         while (!list_empty(&rqbp->rqb_buffer_list)) {
9471                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9472                                  struct lpfc_dmabuf, list);
9473
9474                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9475                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9476                 rqbp->buffer_count--;
9477         }
9478         return 1;
9479 }
9480
9481 static int
9482 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9483         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9484         int qidx, uint32_t qtype)
9485 {
9486         struct lpfc_sli_ring *pring;
9487         int rc;
9488
9489         if (!eq || !cq || !wq) {
9490                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9491                         "6085 Fast-path %s (%d) not allocated\n",
9492                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9493                 return -ENOMEM;
9494         }
9495
9496         /* create the Cq first */
9497         rc = lpfc_cq_create(phba, cq, eq,
9498                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9499         if (rc) {
9500                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9501                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9502                                 qidx, (uint32_t)rc);
9503                 return rc;
9504         }
9505
9506         if (qtype != LPFC_MBOX) {
9507                 /* Setup cq_map for fast lookup */
9508                 if (cq_map)
9509                         *cq_map = cq->queue_id;
9510
9511                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9512                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9513                         qidx, cq->queue_id, qidx, eq->queue_id);
9514
9515                 /* create the wq */
9516                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9517                 if (rc) {
9518                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9519                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9520                                 qidx, (uint32_t)rc);
9521                         /* no need to tear down cq - caller will do so */
9522                         return rc;
9523                 }
9524
9525                 /* Bind this CQ/WQ to the NVME ring */
9526                 pring = wq->pring;
9527                 pring->sli.sli4.wqp = (void *)wq;
9528                 cq->pring = pring;
9529
9530                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9531                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9532                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9533         } else {
9534                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9535                 if (rc) {
9536                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9537                                         "0539 Failed setup of slow-path MQ: "
9538                                         "rc = 0x%x\n", rc);
9539                         /* no need to tear down cq - caller will do so */
9540                         return rc;
9541                 }
9542
9543                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9544                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9545                         phba->sli4_hba.mbx_wq->queue_id,
9546                         phba->sli4_hba.mbx_cq->queue_id);
9547         }
9548
9549         return 0;
9550 }
9551
9552 /**
9553  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9554  * @phba: pointer to lpfc hba data structure.
9555  *
9556  * This routine will populate the cq_lookup table by all
9557  * available CQ queue_id's.
9558  **/
9559 static void
9560 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9561 {
9562         struct lpfc_queue *eq, *childq;
9563         int qidx;
9564
9565         memset(phba->sli4_hba.cq_lookup, 0,
9566                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9567         /* Loop thru all IRQ vectors */
9568         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9569                 /* Get the EQ corresponding to the IRQ vector */
9570                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9571                 if (!eq)
9572                         continue;
9573                 /* Loop through all CQs associated with that EQ */
9574                 list_for_each_entry(childq, &eq->child_list, list) {
9575                         if (childq->queue_id > phba->sli4_hba.cq_max)
9576                                 continue;
9577                         if (childq->subtype == LPFC_IO)
9578                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9579                                         childq;
9580                 }
9581         }
9582 }
9583
9584 /**
9585  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9586  * @phba: pointer to lpfc hba data structure.
9587  *
9588  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9589  * operation.
9590  *
9591  * Return codes
9592  *      0 - successful
9593  *      -ENOMEM - No available memory
9594  *      -EIO - The mailbox failed to complete successfully.
9595  **/
9596 int
9597 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9598 {
9599         uint32_t shdr_status, shdr_add_status;
9600         union lpfc_sli4_cfg_shdr *shdr;
9601         struct lpfc_vector_map_info *cpup;
9602         struct lpfc_sli4_hdw_queue *qp;
9603         LPFC_MBOXQ_t *mboxq;
9604         int qidx, cpu;
9605         uint32_t length, usdelay;
9606         int rc = -ENOMEM;
9607
9608         /* Check for dual-ULP support */
9609         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9610         if (!mboxq) {
9611                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9612                                 "3249 Unable to allocate memory for "
9613                                 "QUERY_FW_CFG mailbox command\n");
9614                 return -ENOMEM;
9615         }
9616         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9617                   sizeof(struct lpfc_sli4_cfg_mhdr));
9618         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9619                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9620                          length, LPFC_SLI4_MBX_EMBED);
9621
9622         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9623
9624         shdr = (union lpfc_sli4_cfg_shdr *)
9625                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9626         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9627         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9628         if (shdr_status || shdr_add_status || rc) {
9629                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9630                                 "3250 QUERY_FW_CFG mailbox failed with status "
9631                                 "x%x add_status x%x, mbx status x%x\n",
9632                                 shdr_status, shdr_add_status, rc);
9633                 if (rc != MBX_TIMEOUT)
9634                         mempool_free(mboxq, phba->mbox_mem_pool);
9635                 rc = -ENXIO;
9636                 goto out_error;
9637         }
9638
9639         phba->sli4_hba.fw_func_mode =
9640                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9641         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9642         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9643         phba->sli4_hba.physical_port =
9644                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9645         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9646                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9647                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9648                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9649
9650         if (rc != MBX_TIMEOUT)
9651                 mempool_free(mboxq, phba->mbox_mem_pool);
9652
9653         /*
9654          * Set up HBA Event Queues (EQs)
9655          */
9656         qp = phba->sli4_hba.hdwq;
9657
9658         /* Set up HBA event queue */
9659         if (!qp) {
9660                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9661                                 "3147 Fast-path EQs not allocated\n");
9662                 rc = -ENOMEM;
9663                 goto out_error;
9664         }
9665
9666         /* Loop thru all IRQ vectors */
9667         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9668                 /* Create HBA Event Queues (EQs) in order */
9669                 for_each_present_cpu(cpu) {
9670                         cpup = &phba->sli4_hba.cpu_map[cpu];
9671
9672                         /* Look for the CPU thats using that vector with
9673                          * LPFC_CPU_FIRST_IRQ set.
9674                          */
9675                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9676                                 continue;
9677                         if (qidx != cpup->eq)
9678                                 continue;
9679
9680                         /* Create an EQ for that vector */
9681                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9682                                             phba->cfg_fcp_imax);
9683                         if (rc) {
9684                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9685                                                 "0523 Failed setup of fast-path"
9686                                                 " EQ (%d), rc = 0x%x\n",
9687                                                 cpup->eq, (uint32_t)rc);
9688                                 goto out_destroy;
9689                         }
9690
9691                         /* Save the EQ for that vector in the hba_eq_hdl */
9692                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9693                                 qp[cpup->hdwq].hba_eq;
9694
9695                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9696                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9697                                         cpup->eq,
9698                                         qp[cpup->hdwq].hba_eq->queue_id);
9699                 }
9700         }
9701
9702         /* Loop thru all Hardware Queues */
9703         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9704                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9705                 cpup = &phba->sli4_hba.cpu_map[cpu];
9706
9707                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9708                 rc = lpfc_create_wq_cq(phba,
9709                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9710                                        qp[qidx].io_cq,
9711                                        qp[qidx].io_wq,
9712                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9713                                        qidx,
9714                                        LPFC_IO);
9715                 if (rc) {
9716                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9717                                         "0535 Failed to setup fastpath "
9718                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9719                                         qidx, (uint32_t)rc);
9720                         goto out_destroy;
9721                 }
9722         }
9723
9724         /*
9725          * Set up Slow Path Complete Queues (CQs)
9726          */
9727
9728         /* Set up slow-path MBOX CQ/MQ */
9729
9730         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9731                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9732                                 "0528 %s not allocated\n",
9733                                 phba->sli4_hba.mbx_cq ?
9734                                 "Mailbox WQ" : "Mailbox CQ");
9735                 rc = -ENOMEM;
9736                 goto out_destroy;
9737         }
9738
9739         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9740                                phba->sli4_hba.mbx_cq,
9741                                phba->sli4_hba.mbx_wq,
9742                                NULL, 0, LPFC_MBOX);
9743         if (rc) {
9744                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9745                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9746                         (uint32_t)rc);
9747                 goto out_destroy;
9748         }
9749         if (phba->nvmet_support) {
9750                 if (!phba->sli4_hba.nvmet_cqset) {
9751                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9752                                         "3165 Fast-path NVME CQ Set "
9753                                         "array not allocated\n");
9754                         rc = -ENOMEM;
9755                         goto out_destroy;
9756                 }
9757                 if (phba->cfg_nvmet_mrq > 1) {
9758                         rc = lpfc_cq_create_set(phba,
9759                                         phba->sli4_hba.nvmet_cqset,
9760                                         qp,
9761                                         LPFC_WCQ, LPFC_NVMET);
9762                         if (rc) {
9763                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9764                                                 "3164 Failed setup of NVME CQ "
9765                                                 "Set, rc = 0x%x\n",
9766                                                 (uint32_t)rc);
9767                                 goto out_destroy;
9768                         }
9769                 } else {
9770                         /* Set up NVMET Receive Complete Queue */
9771                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9772                                             qp[0].hba_eq,
9773                                             LPFC_WCQ, LPFC_NVMET);
9774                         if (rc) {
9775                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9776                                                 "6089 Failed setup NVMET CQ: "
9777                                                 "rc = 0x%x\n", (uint32_t)rc);
9778                                 goto out_destroy;
9779                         }
9780                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9781
9782                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9783                                         "6090 NVMET CQ setup: cq-id=%d, "
9784                                         "parent eq-id=%d\n",
9785                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9786                                         qp[0].hba_eq->queue_id);
9787                 }
9788         }
9789
9790         /* Set up slow-path ELS WQ/CQ */
9791         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9792                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9793                                 "0530 ELS %s not allocated\n",
9794                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9795                 rc = -ENOMEM;
9796                 goto out_destroy;
9797         }
9798         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9799                                phba->sli4_hba.els_cq,
9800                                phba->sli4_hba.els_wq,
9801                                NULL, 0, LPFC_ELS);
9802         if (rc) {
9803                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9804                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9805                                 (uint32_t)rc);
9806                 goto out_destroy;
9807         }
9808         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9809                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9810                         phba->sli4_hba.els_wq->queue_id,
9811                         phba->sli4_hba.els_cq->queue_id);
9812
9813         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9814                 /* Set up NVME LS Complete Queue */
9815                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9816                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9817                                         "6091 LS %s not allocated\n",
9818                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9819                         rc = -ENOMEM;
9820                         goto out_destroy;
9821                 }
9822                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9823                                        phba->sli4_hba.nvmels_cq,
9824                                        phba->sli4_hba.nvmels_wq,
9825                                        NULL, 0, LPFC_NVME_LS);
9826                 if (rc) {
9827                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9828                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9829                                         "rc = 0x%x\n", (uint32_t)rc);
9830                         goto out_destroy;
9831                 }
9832
9833                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9834                                 "6096 ELS WQ setup: wq-id=%d, "
9835                                 "parent cq-id=%d\n",
9836                                 phba->sli4_hba.nvmels_wq->queue_id,
9837                                 phba->sli4_hba.nvmels_cq->queue_id);
9838         }
9839
9840         /*
9841          * Create NVMET Receive Queue (RQ)
9842          */
9843         if (phba->nvmet_support) {
9844                 if ((!phba->sli4_hba.nvmet_cqset) ||
9845                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9846                     (!phba->sli4_hba.nvmet_mrq_data)) {
9847                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9848                                         "6130 MRQ CQ Queues not "
9849                                         "allocated\n");
9850                         rc = -ENOMEM;
9851                         goto out_destroy;
9852                 }
9853                 if (phba->cfg_nvmet_mrq > 1) {
9854                         rc = lpfc_mrq_create(phba,
9855                                              phba->sli4_hba.nvmet_mrq_hdr,
9856                                              phba->sli4_hba.nvmet_mrq_data,
9857                                              phba->sli4_hba.nvmet_cqset,
9858                                              LPFC_NVMET);
9859                         if (rc) {
9860                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9861                                                 "6098 Failed setup of NVMET "
9862                                                 "MRQ: rc = 0x%x\n",
9863                                                 (uint32_t)rc);
9864                                 goto out_destroy;
9865                         }
9866
9867                 } else {
9868                         rc = lpfc_rq_create(phba,
9869                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9870                                             phba->sli4_hba.nvmet_mrq_data[0],
9871                                             phba->sli4_hba.nvmet_cqset[0],
9872                                             LPFC_NVMET);
9873                         if (rc) {
9874                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9875                                                 "6057 Failed setup of NVMET "
9876                                                 "Receive Queue: rc = 0x%x\n",
9877                                                 (uint32_t)rc);
9878                                 goto out_destroy;
9879                         }
9880
9881                         lpfc_printf_log(
9882                                 phba, KERN_INFO, LOG_INIT,
9883                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9884                                 "dat-rq-id=%d parent cq-id=%d\n",
9885                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9886                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9887                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9888
9889                 }
9890         }
9891
9892         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9893                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9894                                 "0540 Receive Queue not allocated\n");
9895                 rc = -ENOMEM;
9896                 goto out_destroy;
9897         }
9898
9899         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9900                             phba->sli4_hba.els_cq, LPFC_USOL);
9901         if (rc) {
9902                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9903                                 "0541 Failed setup of Receive Queue: "
9904                                 "rc = 0x%x\n", (uint32_t)rc);
9905                 goto out_destroy;
9906         }
9907
9908         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9909                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9910                         "parent cq-id=%d\n",
9911                         phba->sli4_hba.hdr_rq->queue_id,
9912                         phba->sli4_hba.dat_rq->queue_id,
9913                         phba->sli4_hba.els_cq->queue_id);
9914
9915         if (phba->cfg_fcp_imax)
9916                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9917         else
9918                 usdelay = 0;
9919
9920         for (qidx = 0; qidx < phba->cfg_irq_chann;
9921              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9922                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9923                                          usdelay);
9924
9925         if (phba->sli4_hba.cq_max) {
9926                 kfree(phba->sli4_hba.cq_lookup);
9927                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9928                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9929                 if (!phba->sli4_hba.cq_lookup) {
9930                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9931                                         "0549 Failed setup of CQ Lookup table: "
9932                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9933                         rc = -ENOMEM;
9934                         goto out_destroy;
9935                 }
9936                 lpfc_setup_cq_lookup(phba);
9937         }
9938         return 0;
9939
9940 out_destroy:
9941         lpfc_sli4_queue_unset(phba);
9942 out_error:
9943         return rc;
9944 }
9945
9946 /**
9947  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9948  * @phba: pointer to lpfc hba data structure.
9949  *
9950  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9951  * operation.
9952  *
9953  * Return codes
9954  *      0 - successful
9955  *      -ENOMEM - No available memory
9956  *      -EIO - The mailbox failed to complete successfully.
9957  **/
9958 void
9959 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9960 {
9961         struct lpfc_sli4_hdw_queue *qp;
9962         struct lpfc_queue *eq;
9963         int qidx;
9964
9965         /* Unset mailbox command work queue */
9966         if (phba->sli4_hba.mbx_wq)
9967                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9968
9969         /* Unset NVME LS work queue */
9970         if (phba->sli4_hba.nvmels_wq)
9971                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9972
9973         /* Unset ELS work queue */
9974         if (phba->sli4_hba.els_wq)
9975                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9976
9977         /* Unset unsolicited receive queue */
9978         if (phba->sli4_hba.hdr_rq)
9979                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9980                                 phba->sli4_hba.dat_rq);
9981
9982         /* Unset mailbox command complete queue */
9983         if (phba->sli4_hba.mbx_cq)
9984                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9985
9986         /* Unset ELS complete queue */
9987         if (phba->sli4_hba.els_cq)
9988                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9989
9990         /* Unset NVME LS complete queue */
9991         if (phba->sli4_hba.nvmels_cq)
9992                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9993
9994         if (phba->nvmet_support) {
9995                 /* Unset NVMET MRQ queue */
9996                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9997                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9998                                 lpfc_rq_destroy(
9999                                         phba,
10000                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
10001                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
10002                 }
10003
10004                 /* Unset NVMET CQ Set complete queue */
10005                 if (phba->sli4_hba.nvmet_cqset) {
10006                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
10007                                 lpfc_cq_destroy(
10008                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
10009                 }
10010         }
10011
10012         /* Unset fast-path SLI4 queues */
10013         if (phba->sli4_hba.hdwq) {
10014                 /* Loop thru all Hardware Queues */
10015                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10016                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
10017                         qp = &phba->sli4_hba.hdwq[qidx];
10018                         lpfc_wq_destroy(phba, qp->io_wq);
10019                         lpfc_cq_destroy(phba, qp->io_cq);
10020                 }
10021                 /* Loop thru all IRQ vectors */
10022                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10023                         /* Destroy the EQ corresponding to the IRQ vector */
10024                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10025                         lpfc_eq_destroy(phba, eq);
10026                 }
10027         }
10028
10029         kfree(phba->sli4_hba.cq_lookup);
10030         phba->sli4_hba.cq_lookup = NULL;
10031         phba->sli4_hba.cq_max = 0;
10032 }
10033
10034 /**
10035  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
10036  * @phba: pointer to lpfc hba data structure.
10037  *
10038  * This routine is invoked to allocate and set up a pool of completion queue
10039  * events. The body of the completion queue event is a completion queue entry
10040  * CQE. For now, this pool is used for the interrupt service routine to queue
10041  * the following HBA completion queue events for the worker thread to process:
10042  *   - Mailbox asynchronous events
10043  *   - Receive queue completion unsolicited events
10044  * Later, this can be used for all the slow-path events.
10045  *
10046  * Return codes
10047  *      0 - successful
10048  *      -ENOMEM - No available memory
10049  **/
10050 static int
10051 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
10052 {
10053         struct lpfc_cq_event *cq_event;
10054         int i;
10055
10056         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
10057                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
10058                 if (!cq_event)
10059                         goto out_pool_create_fail;
10060                 list_add_tail(&cq_event->list,
10061                               &phba->sli4_hba.sp_cqe_event_pool);
10062         }
10063         return 0;
10064
10065 out_pool_create_fail:
10066         lpfc_sli4_cq_event_pool_destroy(phba);
10067         return -ENOMEM;
10068 }
10069
10070 /**
10071  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
10072  * @phba: pointer to lpfc hba data structure.
10073  *
10074  * This routine is invoked to free the pool of completion queue events at
10075  * driver unload time. Note that, it is the responsibility of the driver
10076  * cleanup routine to free all the outstanding completion-queue events
10077  * allocated from this pool back into the pool before invoking this routine
10078  * to destroy the pool.
10079  **/
10080 static void
10081 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
10082 {
10083         struct lpfc_cq_event *cq_event, *next_cq_event;
10084
10085         list_for_each_entry_safe(cq_event, next_cq_event,
10086                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
10087                 list_del(&cq_event->list);
10088                 kfree(cq_event);
10089         }
10090 }
10091
10092 /**
10093  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10094  * @phba: pointer to lpfc hba data structure.
10095  *
10096  * This routine is the lock free version of the API invoked to allocate a
10097  * completion-queue event from the free pool.
10098  *
10099  * Return: Pointer to the newly allocated completion-queue event if successful
10100  *         NULL otherwise.
10101  **/
10102 struct lpfc_cq_event *
10103 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10104 {
10105         struct lpfc_cq_event *cq_event = NULL;
10106
10107         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
10108                          struct lpfc_cq_event, list);
10109         return cq_event;
10110 }
10111
10112 /**
10113  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
10114  * @phba: pointer to lpfc hba data structure.
10115  *
10116  * This routine is the lock version of the API invoked to allocate a
10117  * completion-queue event from the free pool.
10118  *
10119  * Return: Pointer to the newly allocated completion-queue event if successful
10120  *         NULL otherwise.
10121  **/
10122 struct lpfc_cq_event *
10123 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
10124 {
10125         struct lpfc_cq_event *cq_event;
10126         unsigned long iflags;
10127
10128         spin_lock_irqsave(&phba->hbalock, iflags);
10129         cq_event = __lpfc_sli4_cq_event_alloc(phba);
10130         spin_unlock_irqrestore(&phba->hbalock, iflags);
10131         return cq_event;
10132 }
10133
10134 /**
10135  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10136  * @phba: pointer to lpfc hba data structure.
10137  * @cq_event: pointer to the completion queue event to be freed.
10138  *
10139  * This routine is the lock free version of the API invoked to release a
10140  * completion-queue event back into the free pool.
10141  **/
10142 void
10143 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10144                              struct lpfc_cq_event *cq_event)
10145 {
10146         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10147 }
10148
10149 /**
10150  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10151  * @phba: pointer to lpfc hba data structure.
10152  * @cq_event: pointer to the completion queue event to be freed.
10153  *
10154  * This routine is the lock version of the API invoked to release a
10155  * completion-queue event back into the free pool.
10156  **/
10157 void
10158 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10159                            struct lpfc_cq_event *cq_event)
10160 {
10161         unsigned long iflags;
10162         spin_lock_irqsave(&phba->hbalock, iflags);
10163         __lpfc_sli4_cq_event_release(phba, cq_event);
10164         spin_unlock_irqrestore(&phba->hbalock, iflags);
10165 }
10166
10167 /**
10168  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10169  * @phba: pointer to lpfc hba data structure.
10170  *
10171  * This routine is to free all the pending completion-queue events to the
10172  * back into the free pool for device reset.
10173  **/
10174 static void
10175 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10176 {
10177         LIST_HEAD(cqelist);
10178         struct lpfc_cq_event *cqe;
10179         unsigned long iflags;
10180
10181         /* Retrieve all the pending WCQEs from pending WCQE lists */
10182         spin_lock_irqsave(&phba->hbalock, iflags);
10183         /* Pending FCP XRI abort events */
10184         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10185                          &cqelist);
10186         /* Pending ELS XRI abort events */
10187         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10188                          &cqelist);
10189         /* Pending asynnc events */
10190         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10191                          &cqelist);
10192         spin_unlock_irqrestore(&phba->hbalock, iflags);
10193
10194         while (!list_empty(&cqelist)) {
10195                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10196                 lpfc_sli4_cq_event_release(phba, cqe);
10197         }
10198 }
10199
10200 /**
10201  * lpfc_pci_function_reset - Reset pci function.
10202  * @phba: pointer to lpfc hba data structure.
10203  *
10204  * This routine is invoked to request a PCI function reset. It will destroys
10205  * all resources assigned to the PCI function which originates this request.
10206  *
10207  * Return codes
10208  *      0 - successful
10209  *      -ENOMEM - No available memory
10210  *      -EIO - The mailbox failed to complete successfully.
10211  **/
10212 int
10213 lpfc_pci_function_reset(struct lpfc_hba *phba)
10214 {
10215         LPFC_MBOXQ_t *mboxq;
10216         uint32_t rc = 0, if_type;
10217         uint32_t shdr_status, shdr_add_status;
10218         uint32_t rdy_chk;
10219         uint32_t port_reset = 0;
10220         union lpfc_sli4_cfg_shdr *shdr;
10221         struct lpfc_register reg_data;
10222         uint16_t devid;
10223
10224         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10225         switch (if_type) {
10226         case LPFC_SLI_INTF_IF_TYPE_0:
10227                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10228                                                        GFP_KERNEL);
10229                 if (!mboxq) {
10230                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10231                                         "0494 Unable to allocate memory for "
10232                                         "issuing SLI_FUNCTION_RESET mailbox "
10233                                         "command\n");
10234                         return -ENOMEM;
10235                 }
10236
10237                 /* Setup PCI function reset mailbox-ioctl command */
10238                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10239                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10240                                  LPFC_SLI4_MBX_EMBED);
10241                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10242                 shdr = (union lpfc_sli4_cfg_shdr *)
10243                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10244                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10245                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10246                                          &shdr->response);
10247                 if (rc != MBX_TIMEOUT)
10248                         mempool_free(mboxq, phba->mbox_mem_pool);
10249                 if (shdr_status || shdr_add_status || rc) {
10250                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10251                                         "0495 SLI_FUNCTION_RESET mailbox "
10252                                         "failed with status x%x add_status x%x,"
10253                                         " mbx status x%x\n",
10254                                         shdr_status, shdr_add_status, rc);
10255                         rc = -ENXIO;
10256                 }
10257                 break;
10258         case LPFC_SLI_INTF_IF_TYPE_2:
10259         case LPFC_SLI_INTF_IF_TYPE_6:
10260 wait:
10261                 /*
10262                  * Poll the Port Status Register and wait for RDY for
10263                  * up to 30 seconds. If the port doesn't respond, treat
10264                  * it as an error.
10265                  */
10266                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10267                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10268                                 STATUSregaddr, &reg_data.word0)) {
10269                                 rc = -ENODEV;
10270                                 goto out;
10271                         }
10272                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10273                                 break;
10274                         msleep(20);
10275                 }
10276
10277                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10278                         phba->work_status[0] = readl(
10279                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10280                         phba->work_status[1] = readl(
10281                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10282                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10283                                         "2890 Port not ready, port status reg "
10284                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10285                                         reg_data.word0,
10286                                         phba->work_status[0],
10287                                         phba->work_status[1]);
10288                         rc = -ENODEV;
10289                         goto out;
10290                 }
10291
10292                 if (!port_reset) {
10293                         /*
10294                          * Reset the port now
10295                          */
10296                         reg_data.word0 = 0;
10297                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10298                                LPFC_SLIPORT_LITTLE_ENDIAN);
10299                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10300                                LPFC_SLIPORT_INIT_PORT);
10301                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10302                                CTRLregaddr);
10303                         /* flush */
10304                         pci_read_config_word(phba->pcidev,
10305                                              PCI_DEVICE_ID, &devid);
10306
10307                         port_reset = 1;
10308                         msleep(20);
10309                         goto wait;
10310                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10311                         rc = -ENODEV;
10312                         goto out;
10313                 }
10314                 break;
10315
10316         case LPFC_SLI_INTF_IF_TYPE_1:
10317         default:
10318                 break;
10319         }
10320
10321 out:
10322         /* Catch the not-ready port failure after a port reset. */
10323         if (rc) {
10324                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10325                                 "3317 HBA not functional: IP Reset Failed "
10326                                 "try: echo fw_reset > board_mode\n");
10327                 rc = -ENODEV;
10328         }
10329
10330         return rc;
10331 }
10332
10333 /**
10334  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10335  * @phba: pointer to lpfc hba data structure.
10336  *
10337  * This routine is invoked to set up the PCI device memory space for device
10338  * with SLI-4 interface spec.
10339  *
10340  * Return codes
10341  *      0 - successful
10342  *      other values - error
10343  **/
10344 static int
10345 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10346 {
10347         struct pci_dev *pdev = phba->pcidev;
10348         unsigned long bar0map_len, bar1map_len, bar2map_len;
10349         int error;
10350         uint32_t if_type;
10351
10352         if (!pdev)
10353                 return -ENODEV;
10354
10355         /* Set the device DMA mask size */
10356         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10357         if (error)
10358                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10359         if (error)
10360                 return error;
10361
10362         /*
10363          * The BARs and register set definitions and offset locations are
10364          * dependent on the if_type.
10365          */
10366         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10367                                   &phba->sli4_hba.sli_intf.word0)) {
10368                 return -ENODEV;
10369         }
10370
10371         /* There is no SLI3 failback for SLI4 devices. */
10372         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10373             LPFC_SLI_INTF_VALID) {
10374                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10375                                 "2894 SLI_INTF reg contents invalid "
10376                                 "sli_intf reg 0x%x\n",
10377                                 phba->sli4_hba.sli_intf.word0);
10378                 return -ENODEV;
10379         }
10380
10381         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10382         /*
10383          * Get the bus address of SLI4 device Bar regions and the
10384          * number of bytes required by each mapping. The mapping of the
10385          * particular PCI BARs regions is dependent on the type of
10386          * SLI4 device.
10387          */
10388         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10389                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10390                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10391
10392                 /*
10393                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10394                  * addr
10395                  */
10396                 phba->sli4_hba.conf_regs_memmap_p =
10397                         ioremap(phba->pci_bar0_map, bar0map_len);
10398                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10399                         dev_printk(KERN_ERR, &pdev->dev,
10400                                    "ioremap failed for SLI4 PCI config "
10401                                    "registers.\n");
10402                         return -ENODEV;
10403                 }
10404                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10405                 /* Set up BAR0 PCI config space register memory map */
10406                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10407         } else {
10408                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10409                 bar0map_len = pci_resource_len(pdev, 1);
10410                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10411                         dev_printk(KERN_ERR, &pdev->dev,
10412                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10413                         return -ENODEV;
10414                 }
10415                 phba->sli4_hba.conf_regs_memmap_p =
10416                                 ioremap(phba->pci_bar0_map, bar0map_len);
10417                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10418                         dev_printk(KERN_ERR, &pdev->dev,
10419                                 "ioremap failed for SLI4 PCI config "
10420                                 "registers.\n");
10421                         return -ENODEV;
10422                 }
10423                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10424         }
10425
10426         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10427                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10428                         /*
10429                          * Map SLI4 if type 0 HBA Control Register base to a
10430                          * kernel virtual address and setup the registers.
10431                          */
10432                         phba->pci_bar1_map = pci_resource_start(pdev,
10433                                                                 PCI_64BIT_BAR2);
10434                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10435                         phba->sli4_hba.ctrl_regs_memmap_p =
10436                                         ioremap(phba->pci_bar1_map,
10437                                                 bar1map_len);
10438                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10439                                 dev_err(&pdev->dev,
10440                                            "ioremap failed for SLI4 HBA "
10441                                             "control registers.\n");
10442                                 error = -ENOMEM;
10443                                 goto out_iounmap_conf;
10444                         }
10445                         phba->pci_bar2_memmap_p =
10446                                          phba->sli4_hba.ctrl_regs_memmap_p;
10447                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10448                 } else {
10449                         error = -ENOMEM;
10450                         goto out_iounmap_conf;
10451                 }
10452         }
10453
10454         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10455             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10456                 /*
10457                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10458                  * virtual address and setup the registers.
10459                  */
10460                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10461                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10462                 phba->sli4_hba.drbl_regs_memmap_p =
10463                                 ioremap(phba->pci_bar1_map, bar1map_len);
10464                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10465                         dev_err(&pdev->dev,
10466                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10467                         error = -ENOMEM;
10468                         goto out_iounmap_conf;
10469                 }
10470                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10471                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10472         }
10473
10474         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10475                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10476                         /*
10477                          * Map SLI4 if type 0 HBA Doorbell Register base to
10478                          * a kernel virtual address and setup the registers.
10479                          */
10480                         phba->pci_bar2_map = pci_resource_start(pdev,
10481                                                                 PCI_64BIT_BAR4);
10482                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10483                         phba->sli4_hba.drbl_regs_memmap_p =
10484                                         ioremap(phba->pci_bar2_map,
10485                                                 bar2map_len);
10486                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10487                                 dev_err(&pdev->dev,
10488                                            "ioremap failed for SLI4 HBA"
10489                                            " doorbell registers.\n");
10490                                 error = -ENOMEM;
10491                                 goto out_iounmap_ctrl;
10492                         }
10493                         phba->pci_bar4_memmap_p =
10494                                         phba->sli4_hba.drbl_regs_memmap_p;
10495                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10496                         if (error)
10497                                 goto out_iounmap_all;
10498                 } else {
10499                         error = -ENOMEM;
10500                         goto out_iounmap_all;
10501                 }
10502         }
10503
10504         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10505             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10506                 /*
10507                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10508                  * virtual address and setup the registers.
10509                  */
10510                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10511                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10512                 phba->sli4_hba.dpp_regs_memmap_p =
10513                                 ioremap(phba->pci_bar2_map, bar2map_len);
10514                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10515                         dev_err(&pdev->dev,
10516                            "ioremap failed for SLI4 HBA dpp registers.\n");
10517                         error = -ENOMEM;
10518                         goto out_iounmap_ctrl;
10519                 }
10520                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10521         }
10522
10523         /* Set up the EQ/CQ register handeling functions now */
10524         switch (if_type) {
10525         case LPFC_SLI_INTF_IF_TYPE_0:
10526         case LPFC_SLI_INTF_IF_TYPE_2:
10527                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10528                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10529                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10530                 break;
10531         case LPFC_SLI_INTF_IF_TYPE_6:
10532                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10533                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10534                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10535                 break;
10536         default:
10537                 break;
10538         }
10539
10540         return 0;
10541
10542 out_iounmap_all:
10543         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10544 out_iounmap_ctrl:
10545         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10546 out_iounmap_conf:
10547         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10548
10549         return error;
10550 }
10551
10552 /**
10553  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10554  * @phba: pointer to lpfc hba data structure.
10555  *
10556  * This routine is invoked to unset the PCI device memory space for device
10557  * with SLI-4 interface spec.
10558  **/
10559 static void
10560 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10561 {
10562         uint32_t if_type;
10563         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10564
10565         switch (if_type) {
10566         case LPFC_SLI_INTF_IF_TYPE_0:
10567                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10568                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10569                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10570                 break;
10571         case LPFC_SLI_INTF_IF_TYPE_2:
10572                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10573                 break;
10574         case LPFC_SLI_INTF_IF_TYPE_6:
10575                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10576                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10577                 if (phba->sli4_hba.dpp_regs_memmap_p)
10578                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10579                 break;
10580         case LPFC_SLI_INTF_IF_TYPE_1:
10581         default:
10582                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10583                            "FATAL - unsupported SLI4 interface type - %d\n",
10584                            if_type);
10585                 break;
10586         }
10587 }
10588
10589 /**
10590  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10591  * @phba: pointer to lpfc hba data structure.
10592  *
10593  * This routine is invoked to enable the MSI-X interrupt vectors to device
10594  * with SLI-3 interface specs.
10595  *
10596  * Return codes
10597  *   0 - successful
10598  *   other values - error
10599  **/
10600 static int
10601 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10602 {
10603         int rc;
10604         LPFC_MBOXQ_t *pmb;
10605
10606         /* Set up MSI-X multi-message vectors */
10607         rc = pci_alloc_irq_vectors(phba->pcidev,
10608                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10609         if (rc < 0) {
10610                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10611                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10612                 goto vec_fail_out;
10613         }
10614
10615         /*
10616          * Assign MSI-X vectors to interrupt handlers
10617          */
10618
10619         /* vector-0 is associated to slow-path handler */
10620         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10621                          &lpfc_sli_sp_intr_handler, 0,
10622                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10623         if (rc) {
10624                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10625                                 "0421 MSI-X slow-path request_irq failed "
10626                                 "(%d)\n", rc);
10627                 goto msi_fail_out;
10628         }
10629
10630         /* vector-1 is associated to fast-path handler */
10631         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10632                          &lpfc_sli_fp_intr_handler, 0,
10633                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10634
10635         if (rc) {
10636                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10637                                 "0429 MSI-X fast-path request_irq failed "
10638                                 "(%d)\n", rc);
10639                 goto irq_fail_out;
10640         }
10641
10642         /*
10643          * Configure HBA MSI-X attention conditions to messages
10644          */
10645         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10646
10647         if (!pmb) {
10648                 rc = -ENOMEM;
10649                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10650                                 "0474 Unable to allocate memory for issuing "
10651                                 "MBOX_CONFIG_MSI command\n");
10652                 goto mem_fail_out;
10653         }
10654         rc = lpfc_config_msi(phba, pmb);
10655         if (rc)
10656                 goto mbx_fail_out;
10657         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10658         if (rc != MBX_SUCCESS) {
10659                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10660                                 "0351 Config MSI mailbox command failed, "
10661                                 "mbxCmd x%x, mbxStatus x%x\n",
10662                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10663                 goto mbx_fail_out;
10664         }
10665
10666         /* Free memory allocated for mailbox command */
10667         mempool_free(pmb, phba->mbox_mem_pool);
10668         return rc;
10669
10670 mbx_fail_out:
10671         /* Free memory allocated for mailbox command */
10672         mempool_free(pmb, phba->mbox_mem_pool);
10673
10674 mem_fail_out:
10675         /* free the irq already requested */
10676         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10677
10678 irq_fail_out:
10679         /* free the irq already requested */
10680         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10681
10682 msi_fail_out:
10683         /* Unconfigure MSI-X capability structure */
10684         pci_free_irq_vectors(phba->pcidev);
10685
10686 vec_fail_out:
10687         return rc;
10688 }
10689
10690 /**
10691  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10692  * @phba: pointer to lpfc hba data structure.
10693  *
10694  * This routine is invoked to enable the MSI interrupt mode to device with
10695  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10696  * enable the MSI vector. The device driver is responsible for calling the
10697  * request_irq() to register MSI vector with a interrupt the handler, which
10698  * is done in this function.
10699  *
10700  * Return codes
10701  *      0 - successful
10702  *      other values - error
10703  */
10704 static int
10705 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10706 {
10707         int rc;
10708
10709         rc = pci_enable_msi(phba->pcidev);
10710         if (!rc)
10711                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10712                                 "0462 PCI enable MSI mode success.\n");
10713         else {
10714                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10715                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10716                 return rc;
10717         }
10718
10719         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10720                          0, LPFC_DRIVER_NAME, phba);
10721         if (rc) {
10722                 pci_disable_msi(phba->pcidev);
10723                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10724                                 "0478 MSI request_irq failed (%d)\n", rc);
10725         }
10726         return rc;
10727 }
10728
10729 /**
10730  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10731  * @phba: pointer to lpfc hba data structure.
10732  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
10733  *
10734  * This routine is invoked to enable device interrupt and associate driver's
10735  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10736  * spec. Depends on the interrupt mode configured to the driver, the driver
10737  * will try to fallback from the configured interrupt mode to an interrupt
10738  * mode which is supported by the platform, kernel, and device in the order
10739  * of:
10740  * MSI-X -> MSI -> IRQ.
10741  *
10742  * Return codes
10743  *   0 - successful
10744  *   other values - error
10745  **/
10746 static uint32_t
10747 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10748 {
10749         uint32_t intr_mode = LPFC_INTR_ERROR;
10750         int retval;
10751
10752         if (cfg_mode == 2) {
10753                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10754                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10755                 if (!retval) {
10756                         /* Now, try to enable MSI-X interrupt mode */
10757                         retval = lpfc_sli_enable_msix(phba);
10758                         if (!retval) {
10759                                 /* Indicate initialization to MSI-X mode */
10760                                 phba->intr_type = MSIX;
10761                                 intr_mode = 2;
10762                         }
10763                 }
10764         }
10765
10766         /* Fallback to MSI if MSI-X initialization failed */
10767         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10768                 retval = lpfc_sli_enable_msi(phba);
10769                 if (!retval) {
10770                         /* Indicate initialization to MSI mode */
10771                         phba->intr_type = MSI;
10772                         intr_mode = 1;
10773                 }
10774         }
10775
10776         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10777         if (phba->intr_type == NONE) {
10778                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10779                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10780                 if (!retval) {
10781                         /* Indicate initialization to INTx mode */
10782                         phba->intr_type = INTx;
10783                         intr_mode = 0;
10784                 }
10785         }
10786         return intr_mode;
10787 }
10788
10789 /**
10790  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10791  * @phba: pointer to lpfc hba data structure.
10792  *
10793  * This routine is invoked to disable device interrupt and disassociate the
10794  * driver's interrupt handler(s) from interrupt vector(s) to device with
10795  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10796  * release the interrupt vector(s) for the message signaled interrupt.
10797  **/
10798 static void
10799 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10800 {
10801         int nr_irqs, i;
10802
10803         if (phba->intr_type == MSIX)
10804                 nr_irqs = LPFC_MSIX_VECTORS;
10805         else
10806                 nr_irqs = 1;
10807
10808         for (i = 0; i < nr_irqs; i++)
10809                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10810         pci_free_irq_vectors(phba->pcidev);
10811
10812         /* Reset interrupt management states */
10813         phba->intr_type = NONE;
10814         phba->sli.slistat.sli_intr = 0;
10815 }
10816
10817 /**
10818  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10819  * @phba: pointer to lpfc hba data structure.
10820  * @id: EQ vector index or Hardware Queue index
10821  * @match: LPFC_FIND_BY_EQ = match by EQ
10822  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10823  * Return the CPU that matches the selection criteria
10824  */
10825 static uint16_t
10826 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10827 {
10828         struct lpfc_vector_map_info *cpup;
10829         int cpu;
10830
10831         /* Loop through all CPUs */
10832         for_each_present_cpu(cpu) {
10833                 cpup = &phba->sli4_hba.cpu_map[cpu];
10834
10835                 /* If we are matching by EQ, there may be multiple CPUs using
10836                  * using the same vector, so select the one with
10837                  * LPFC_CPU_FIRST_IRQ set.
10838                  */
10839                 if ((match == LPFC_FIND_BY_EQ) &&
10840                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10841                     (cpup->eq == id))
10842                         return cpu;
10843
10844                 /* If matching by HDWQ, select the first CPU that matches */
10845                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10846                         return cpu;
10847         }
10848         return 0;
10849 }
10850
10851 #ifdef CONFIG_X86
10852 /**
10853  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10854  * @phba: pointer to lpfc hba data structure.
10855  * @cpu: CPU map index
10856  * @phys_id: CPU package physical id
10857  * @core_id: CPU core id
10858  */
10859 static int
10860 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10861                 uint16_t phys_id, uint16_t core_id)
10862 {
10863         struct lpfc_vector_map_info *cpup;
10864         int idx;
10865
10866         for_each_present_cpu(idx) {
10867                 cpup = &phba->sli4_hba.cpu_map[idx];
10868                 /* Does the cpup match the one we are looking for */
10869                 if ((cpup->phys_id == phys_id) &&
10870                     (cpup->core_id == core_id) &&
10871                     (cpu != idx))
10872                         return 1;
10873         }
10874         return 0;
10875 }
10876 #endif
10877
10878 /*
10879  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10880  * @phba: pointer to lpfc hba data structure.
10881  * @eqidx: index for eq and irq vector
10882  * @flag: flags to set for vector_map structure
10883  * @cpu: cpu used to index vector_map structure
10884  *
10885  * The routine assigns eq info into vector_map structure
10886  */
10887 static inline void
10888 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10889                         unsigned int cpu)
10890 {
10891         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10892         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10893
10894         cpup->eq = eqidx;
10895         cpup->flag |= flag;
10896
10897         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10898                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10899                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
10900 }
10901
10902 /**
10903  * lpfc_cpu_map_array_init - Initialize cpu_map structure
10904  * @phba: pointer to lpfc hba data structure.
10905  *
10906  * The routine initializes the cpu_map array structure
10907  */
10908 static void
10909 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10910 {
10911         struct lpfc_vector_map_info *cpup;
10912         struct lpfc_eq_intr_info *eqi;
10913         int cpu;
10914
10915         for_each_possible_cpu(cpu) {
10916                 cpup = &phba->sli4_hba.cpu_map[cpu];
10917                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10918                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10919                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10920                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10921                 cpup->flag = 0;
10922                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10923                 INIT_LIST_HEAD(&eqi->list);
10924                 eqi->icnt = 0;
10925         }
10926 }
10927
10928 /**
10929  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10930  * @phba: pointer to lpfc hba data structure.
10931  *
10932  * The routine initializes the hba_eq_hdl array structure
10933  */
10934 static void
10935 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10936 {
10937         struct lpfc_hba_eq_hdl *eqhdl;
10938         int i;
10939
10940         for (i = 0; i < phba->cfg_irq_chann; i++) {
10941                 eqhdl = lpfc_get_eq_hdl(i);
10942                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10943                 eqhdl->phba = phba;
10944         }
10945 }
10946
10947 /**
10948  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10949  * @phba: pointer to lpfc hba data structure.
10950  * @vectors: number of msix vectors allocated.
10951  *
10952  * The routine will figure out the CPU affinity assignment for every
10953  * MSI-X vector allocated for the HBA.
10954  * In addition, the CPU to IO channel mapping will be calculated
10955  * and the phba->sli4_hba.cpu_map array will reflect this.
10956  */
10957 static void
10958 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10959 {
10960         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10961         int max_phys_id, min_phys_id;
10962         int max_core_id, min_core_id;
10963         struct lpfc_vector_map_info *cpup;
10964         struct lpfc_vector_map_info *new_cpup;
10965 #ifdef CONFIG_X86
10966         struct cpuinfo_x86 *cpuinfo;
10967 #endif
10968 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
10969         struct lpfc_hdwq_stat *c_stat;
10970 #endif
10971
10972         max_phys_id = 0;
10973         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10974         max_core_id = 0;
10975         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10976
10977         /* Update CPU map with physical id and core id of each CPU */
10978         for_each_present_cpu(cpu) {
10979                 cpup = &phba->sli4_hba.cpu_map[cpu];
10980 #ifdef CONFIG_X86
10981                 cpuinfo = &cpu_data(cpu);
10982                 cpup->phys_id = cpuinfo->phys_proc_id;
10983                 cpup->core_id = cpuinfo->cpu_core_id;
10984                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10985                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10986 #else
10987                 /* No distinction between CPUs for other platforms */
10988                 cpup->phys_id = 0;
10989                 cpup->core_id = cpu;
10990 #endif
10991
10992                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10993                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
10994                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10995
10996                 if (cpup->phys_id > max_phys_id)
10997                         max_phys_id = cpup->phys_id;
10998                 if (cpup->phys_id < min_phys_id)
10999                         min_phys_id = cpup->phys_id;
11000
11001                 if (cpup->core_id > max_core_id)
11002                         max_core_id = cpup->core_id;
11003                 if (cpup->core_id < min_core_id)
11004                         min_core_id = cpup->core_id;
11005         }
11006
11007         /* After looking at each irq vector assigned to this pcidev, its
11008          * possible to see that not ALL CPUs have been accounted for.
11009          * Next we will set any unassigned (unaffinitized) cpu map
11010          * entries to a IRQ on the same phys_id.
11011          */
11012         first_cpu = cpumask_first(cpu_present_mask);
11013         start_cpu = first_cpu;
11014
11015         for_each_present_cpu(cpu) {
11016                 cpup = &phba->sli4_hba.cpu_map[cpu];
11017
11018                 /* Is this CPU entry unassigned */
11019                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11020                         /* Mark CPU as IRQ not assigned by the kernel */
11021                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11022
11023                         /* If so, find a new_cpup thats on the the SAME
11024                          * phys_id as cpup. start_cpu will start where we
11025                          * left off so all unassigned entries don't get assgined
11026                          * the IRQ of the first entry.
11027                          */
11028                         new_cpu = start_cpu;
11029                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11030                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11031                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11032                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
11033                                     (new_cpup->phys_id == cpup->phys_id))
11034                                         goto found_same;
11035                                 new_cpu = cpumask_next(
11036                                         new_cpu, cpu_present_mask);
11037                                 if (new_cpu == nr_cpumask_bits)
11038                                         new_cpu = first_cpu;
11039                         }
11040                         /* At this point, we leave the CPU as unassigned */
11041                         continue;
11042 found_same:
11043                         /* We found a matching phys_id, so copy the IRQ info */
11044                         cpup->eq = new_cpup->eq;
11045
11046                         /* Bump start_cpu to the next slot to minmize the
11047                          * chance of having multiple unassigned CPU entries
11048                          * selecting the same IRQ.
11049                          */
11050                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11051                         if (start_cpu == nr_cpumask_bits)
11052                                 start_cpu = first_cpu;
11053
11054                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11055                                         "3337 Set Affinity: CPU %d "
11056                                         "eq %d from peer cpu %d same "
11057                                         "phys_id (%d)\n",
11058                                         cpu, cpup->eq, new_cpu,
11059                                         cpup->phys_id);
11060                 }
11061         }
11062
11063         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
11064         start_cpu = first_cpu;
11065
11066         for_each_present_cpu(cpu) {
11067                 cpup = &phba->sli4_hba.cpu_map[cpu];
11068
11069                 /* Is this entry unassigned */
11070                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
11071                         /* Mark it as IRQ not assigned by the kernel */
11072                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
11073
11074                         /* If so, find a new_cpup thats on ANY phys_id
11075                          * as the cpup. start_cpu will start where we
11076                          * left off so all unassigned entries don't get
11077                          * assigned the IRQ of the first entry.
11078                          */
11079                         new_cpu = start_cpu;
11080                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11081                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11082                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
11083                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
11084                                         goto found_any;
11085                                 new_cpu = cpumask_next(
11086                                         new_cpu, cpu_present_mask);
11087                                 if (new_cpu == nr_cpumask_bits)
11088                                         new_cpu = first_cpu;
11089                         }
11090                         /* We should never leave an entry unassigned */
11091                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11092                                         "3339 Set Affinity: CPU %d "
11093                                         "eq %d UNASSIGNED\n",
11094                                         cpup->hdwq, cpup->eq);
11095                         continue;
11096 found_any:
11097                         /* We found an available entry, copy the IRQ info */
11098                         cpup->eq = new_cpup->eq;
11099
11100                         /* Bump start_cpu to the next slot to minmize the
11101                          * chance of having multiple unassigned CPU entries
11102                          * selecting the same IRQ.
11103                          */
11104                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11105                         if (start_cpu == nr_cpumask_bits)
11106                                 start_cpu = first_cpu;
11107
11108                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11109                                         "3338 Set Affinity: CPU %d "
11110                                         "eq %d from peer cpu %d (%d/%d)\n",
11111                                         cpu, cpup->eq, new_cpu,
11112                                         new_cpup->phys_id, new_cpup->core_id);
11113                 }
11114         }
11115
11116         /* Assign hdwq indices that are unique across all cpus in the map
11117          * that are also FIRST_CPUs.
11118          */
11119         idx = 0;
11120         for_each_present_cpu(cpu) {
11121                 cpup = &phba->sli4_hba.cpu_map[cpu];
11122
11123                 /* Only FIRST IRQs get a hdwq index assignment. */
11124                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11125                         continue;
11126
11127                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
11128                 cpup->hdwq = idx;
11129                 idx++;
11130                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11131                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
11132                                 "hdwq %d eq %d flg x%x\n",
11133                                 cpu, cpup->phys_id, cpup->core_id,
11134                                 cpup->hdwq, cpup->eq, cpup->flag);
11135         }
11136         /* Associate a hdwq with each cpu_map entry
11137          * This will be 1 to 1 - hdwq to cpu, unless there are less
11138          * hardware queues then CPUs. For that case we will just round-robin
11139          * the available hardware queues as they get assigned to CPUs.
11140          * The next_idx is the idx from the FIRST_CPU loop above to account
11141          * for irq_chann < hdwq.  The idx is used for round-robin assignments
11142          * and needs to start at 0.
11143          */
11144         next_idx = idx;
11145         start_cpu = 0;
11146         idx = 0;
11147         for_each_present_cpu(cpu) {
11148                 cpup = &phba->sli4_hba.cpu_map[cpu];
11149
11150                 /* FIRST cpus are already mapped. */
11151                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11152                         continue;
11153
11154                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11155                  * of the unassigned cpus to the next idx so that all
11156                  * hdw queues are fully utilized.
11157                  */
11158                 if (next_idx < phba->cfg_hdw_queue) {
11159                         cpup->hdwq = next_idx;
11160                         next_idx++;
11161                         continue;
11162                 }
11163
11164                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11165                  * Hardware Queue for another CPU, so be smart about it
11166                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11167                  * (CPU package) and core_id.
11168                  */
11169                 new_cpu = start_cpu;
11170                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11171                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11172                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11173                             new_cpup->phys_id == cpup->phys_id &&
11174                             new_cpup->core_id == cpup->core_id) {
11175                                 goto found_hdwq;
11176                         }
11177                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11178                         if (new_cpu == nr_cpumask_bits)
11179                                 new_cpu = first_cpu;
11180                 }
11181
11182                 /* If we can't match both phys_id and core_id,
11183                  * settle for just a phys_id match.
11184                  */
11185                 new_cpu = start_cpu;
11186                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11187                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11188                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11189                             new_cpup->phys_id == cpup->phys_id)
11190                                 goto found_hdwq;
11191
11192                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11193                         if (new_cpu == nr_cpumask_bits)
11194                                 new_cpu = first_cpu;
11195                 }
11196
11197                 /* Otherwise just round robin on cfg_hdw_queue */
11198                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11199                 idx++;
11200                 goto logit;
11201  found_hdwq:
11202                 /* We found an available entry, copy the IRQ info */
11203                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11204                 if (start_cpu == nr_cpumask_bits)
11205                         start_cpu = first_cpu;
11206                 cpup->hdwq = new_cpup->hdwq;
11207  logit:
11208                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11209                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11210                                 "hdwq %d eq %d flg x%x\n",
11211                                 cpu, cpup->phys_id, cpup->core_id,
11212                                 cpup->hdwq, cpup->eq, cpup->flag);
11213         }
11214
11215         /*
11216          * Initialize the cpu_map slots for not-present cpus in case
11217          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11218          */
11219         idx = 0;
11220         for_each_possible_cpu(cpu) {
11221                 cpup = &phba->sli4_hba.cpu_map[cpu];
11222 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11223                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
11224                 c_stat->hdwq_no = cpup->hdwq;
11225 #endif
11226                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11227                         continue;
11228
11229                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11230 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
11231                 c_stat->hdwq_no = cpup->hdwq;
11232 #endif
11233                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11234                                 "3340 Set Affinity: not present "
11235                                 "CPU %d hdwq %d\n",
11236                                 cpu, cpup->hdwq);
11237         }
11238
11239         /* The cpu_map array will be used later during initialization
11240          * when EQ / CQ / WQs are allocated and configured.
11241          */
11242         return;
11243 }
11244
11245 /**
11246  * lpfc_cpuhp_get_eq
11247  *
11248  * @phba:   pointer to lpfc hba data structure.
11249  * @cpu:    cpu going offline
11250  * @eqlist: eq list to append to
11251  */
11252 static int
11253 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11254                   struct list_head *eqlist)
11255 {
11256         const struct cpumask *maskp;
11257         struct lpfc_queue *eq;
11258         struct cpumask *tmp;
11259         u16 idx;
11260
11261         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
11262         if (!tmp)
11263                 return -ENOMEM;
11264
11265         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11266                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11267                 if (!maskp)
11268                         continue;
11269                 /*
11270                  * if irq is not affinitized to the cpu going
11271                  * then we don't need to poll the eq attached
11272                  * to it.
11273                  */
11274                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
11275                         continue;
11276                 /* get the cpus that are online and are affini-
11277                  * tized to this irq vector.  If the count is
11278                  * more than 1 then cpuhp is not going to shut-
11279                  * down this vector.  Since this cpu has not
11280                  * gone offline yet, we need >1.
11281                  */
11282                 cpumask_and(tmp, maskp, cpu_online_mask);
11283                 if (cpumask_weight(tmp) > 1)
11284                         continue;
11285
11286                 /* Now that we have an irq to shutdown, get the eq
11287                  * mapped to this irq.  Note: multiple hdwq's in
11288                  * the software can share an eq, but eventually
11289                  * only eq will be mapped to this vector
11290                  */
11291                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11292                 list_add(&eq->_poll_list, eqlist);
11293         }
11294         kfree(tmp);
11295         return 0;
11296 }
11297
11298 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11299 {
11300         if (phba->sli_rev != LPFC_SLI_REV4)
11301                 return;
11302
11303         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11304                                             &phba->cpuhp);
11305         /*
11306          * unregistering the instance doesn't stop the polling
11307          * timer. Wait for the poll timer to retire.
11308          */
11309         synchronize_rcu();
11310         del_timer_sync(&phba->cpuhp_poll_timer);
11311 }
11312
11313 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11314 {
11315         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11316                 return;
11317
11318         __lpfc_cpuhp_remove(phba);
11319 }
11320
11321 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11322 {
11323         if (phba->sli_rev != LPFC_SLI_REV4)
11324                 return;
11325
11326         rcu_read_lock();
11327
11328         if (!list_empty(&phba->poll_list))
11329                 mod_timer(&phba->cpuhp_poll_timer,
11330                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11331
11332         rcu_read_unlock();
11333
11334         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11335                                          &phba->cpuhp);
11336 }
11337
11338 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11339 {
11340         if (phba->pport->load_flag & FC_UNLOADING) {
11341                 *retval = -EAGAIN;
11342                 return true;
11343         }
11344
11345         if (phba->sli_rev != LPFC_SLI_REV4) {
11346                 *retval = 0;
11347                 return true;
11348         }
11349
11350         /* proceed with the hotplug */
11351         return false;
11352 }
11353
11354 /**
11355  * lpfc_irq_set_aff - set IRQ affinity
11356  * @eqhdl: EQ handle
11357  * @cpu: cpu to set affinity
11358  *
11359  **/
11360 static inline void
11361 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11362 {
11363         cpumask_clear(&eqhdl->aff_mask);
11364         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11365         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11366         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11367 }
11368
11369 /**
11370  * lpfc_irq_clear_aff - clear IRQ affinity
11371  * @eqhdl: EQ handle
11372  *
11373  **/
11374 static inline void
11375 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11376 {
11377         cpumask_clear(&eqhdl->aff_mask);
11378         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11379 }
11380
11381 /**
11382  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11383  * @phba: pointer to HBA context object.
11384  * @cpu: cpu going offline/online
11385  * @offline: true, cpu is going offline. false, cpu is coming online.
11386  *
11387  * If cpu is going offline, we'll try our best effort to find the next
11388  * online cpu on the phba's original_mask and migrate all offlining IRQ
11389  * affinities.
11390  *
11391  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
11392  *
11393  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
11394  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11395  *
11396  **/
11397 static void
11398 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11399 {
11400         struct lpfc_vector_map_info *cpup;
11401         struct cpumask *aff_mask;
11402         unsigned int cpu_select, cpu_next, idx;
11403         const struct cpumask *orig_mask;
11404
11405         if (phba->irq_chann_mode == NORMAL_MODE)
11406                 return;
11407
11408         orig_mask = &phba->sli4_hba.irq_aff_mask;
11409
11410         if (!cpumask_test_cpu(cpu, orig_mask))
11411                 return;
11412
11413         cpup = &phba->sli4_hba.cpu_map[cpu];
11414
11415         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11416                 return;
11417
11418         if (offline) {
11419                 /* Find next online CPU on original mask */
11420                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
11421                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
11422
11423                 /* Found a valid CPU */
11424                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11425                         /* Go through each eqhdl and ensure offlining
11426                          * cpu aff_mask is migrated
11427                          */
11428                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11429                                 aff_mask = lpfc_get_aff_mask(idx);
11430
11431                                 /* Migrate affinity */
11432                                 if (cpumask_test_cpu(cpu, aff_mask))
11433                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11434                                                          cpu_select);
11435                         }
11436                 } else {
11437                         /* Rely on irqbalance if no online CPUs left on NUMA */
11438                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11439                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11440                 }
11441         } else {
11442                 /* Migrate affinity back to this CPU */
11443                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11444         }
11445 }
11446
11447 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11448 {
11449         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11450         struct lpfc_queue *eq, *next;
11451         LIST_HEAD(eqlist);
11452         int retval;
11453
11454         if (!phba) {
11455                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11456                 return 0;
11457         }
11458
11459         if (__lpfc_cpuhp_checks(phba, &retval))
11460                 return retval;
11461
11462         lpfc_irq_rebalance(phba, cpu, true);
11463
11464         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11465         if (retval)
11466                 return retval;
11467
11468         /* start polling on these eq's */
11469         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11470                 list_del_init(&eq->_poll_list);
11471                 lpfc_sli4_start_polling(eq);
11472         }
11473
11474         return 0;
11475 }
11476
11477 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11478 {
11479         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11480         struct lpfc_queue *eq, *next;
11481         unsigned int n;
11482         int retval;
11483
11484         if (!phba) {
11485                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11486                 return 0;
11487         }
11488
11489         if (__lpfc_cpuhp_checks(phba, &retval))
11490                 return retval;
11491
11492         lpfc_irq_rebalance(phba, cpu, false);
11493
11494         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11495                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11496                 if (n == cpu)
11497                         lpfc_sli4_stop_polling(eq);
11498         }
11499
11500         return 0;
11501 }
11502
11503 /**
11504  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11505  * @phba: pointer to lpfc hba data structure.
11506  *
11507  * This routine is invoked to enable the MSI-X interrupt vectors to device
11508  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
11509  * to cpus on the system.
11510  *
11511  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11512  * the number of cpus on the same numa node as this adapter.  The vectors are
11513  * allocated without requesting OS affinity mapping.  A vector will be
11514  * allocated and assigned to each online and offline cpu.  If the cpu is
11515  * online, then affinity will be set to that cpu.  If the cpu is offline, then
11516  * affinity will be set to the nearest peer cpu within the numa node that is
11517  * online.  If there are no online cpus within the numa node, affinity is not
11518  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11519  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11520  * configured.
11521  *
11522  * If numa mode is not enabled and there is more than 1 vector allocated, then
11523  * the driver relies on the managed irq interface where the OS assigns vector to
11524  * cpu affinity.  The driver will then use that affinity mapping to setup its
11525  * cpu mapping table.
11526  *
11527  * Return codes
11528  * 0 - successful
11529  * other values - error
11530  **/
11531 static int
11532 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11533 {
11534         int vectors, rc, index;
11535         char *name;
11536         const struct cpumask *aff_mask = NULL;
11537         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11538         struct lpfc_vector_map_info *cpup;
11539         struct lpfc_hba_eq_hdl *eqhdl;
11540         const struct cpumask *maskp;
11541         unsigned int flags = PCI_IRQ_MSIX;
11542
11543         /* Set up MSI-X multi-message vectors */
11544         vectors = phba->cfg_irq_chann;
11545
11546         if (phba->irq_chann_mode != NORMAL_MODE)
11547                 aff_mask = &phba->sli4_hba.irq_aff_mask;
11548
11549         if (aff_mask) {
11550                 cpu_cnt = cpumask_weight(aff_mask);
11551                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11552
11553                 /* cpu: iterates over aff_mask including offline or online
11554                  * cpu_select: iterates over online aff_mask to set affinity
11555                  */
11556                 cpu = cpumask_first(aff_mask);
11557                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11558         } else {
11559                 flags |= PCI_IRQ_AFFINITY;
11560         }
11561
11562         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11563         if (rc < 0) {
11564                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11565                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11566                 goto vec_fail_out;
11567         }
11568         vectors = rc;
11569
11570         /* Assign MSI-X vectors to interrupt handlers */
11571         for (index = 0; index < vectors; index++) {
11572                 eqhdl = lpfc_get_eq_hdl(index);
11573                 name = eqhdl->handler_name;
11574                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11575                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11576                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11577
11578                 eqhdl->idx = index;
11579                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11580                          &lpfc_sli4_hba_intr_handler, 0,
11581                          name, eqhdl);
11582                 if (rc) {
11583                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11584                                         "0486 MSI-X fast-path (%d) "
11585                                         "request_irq failed (%d)\n", index, rc);
11586                         goto cfg_fail_out;
11587                 }
11588
11589                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11590
11591                 if (aff_mask) {
11592                         /* If found a neighboring online cpu, set affinity */
11593                         if (cpu_select < nr_cpu_ids)
11594                                 lpfc_irq_set_aff(eqhdl, cpu_select);
11595
11596                         /* Assign EQ to cpu_map */
11597                         lpfc_assign_eq_map_info(phba, index,
11598                                                 LPFC_CPU_FIRST_IRQ,
11599                                                 cpu);
11600
11601                         /* Iterate to next offline or online cpu in aff_mask */
11602                         cpu = cpumask_next(cpu, aff_mask);
11603
11604                         /* Find next online cpu in aff_mask to set affinity */
11605                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
11606                 } else if (vectors == 1) {
11607                         cpu = cpumask_first(cpu_present_mask);
11608                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11609                                                 cpu);
11610                 } else {
11611                         maskp = pci_irq_get_affinity(phba->pcidev, index);
11612
11613                         /* Loop through all CPUs associated with vector index */
11614                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11615                                 cpup = &phba->sli4_hba.cpu_map[cpu];
11616
11617                                 /* If this is the first CPU thats assigned to
11618                                  * this vector, set LPFC_CPU_FIRST_IRQ.
11619                                  *
11620                                  * With certain platforms its possible that irq
11621                                  * vectors are affinitized to all the cpu's.
11622                                  * This can result in each cpu_map.eq to be set
11623                                  * to the last vector, resulting in overwrite
11624                                  * of all the previous cpu_map.eq.  Ensure that
11625                                  * each vector receives a place in cpu_map.
11626                                  * Later call to lpfc_cpu_affinity_check will
11627                                  * ensure we are nicely balanced out.
11628                                  */
11629                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
11630                                         continue;
11631                                 lpfc_assign_eq_map_info(phba, index,
11632                                                         LPFC_CPU_FIRST_IRQ,
11633                                                         cpu);
11634                                 break;
11635                         }
11636                 }
11637         }
11638
11639         if (vectors != phba->cfg_irq_chann) {
11640                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11641                                 "3238 Reducing IO channels to match number of "
11642                                 "MSI-X vectors, requested %d got %d\n",
11643                                 phba->cfg_irq_chann, vectors);
11644                 if (phba->cfg_irq_chann > vectors)
11645                         phba->cfg_irq_chann = vectors;
11646         }
11647
11648         return rc;
11649
11650 cfg_fail_out:
11651         /* free the irq already requested */
11652         for (--index; index >= 0; index--) {
11653                 eqhdl = lpfc_get_eq_hdl(index);
11654                 lpfc_irq_clear_aff(eqhdl);
11655                 irq_set_affinity_hint(eqhdl->irq, NULL);
11656                 free_irq(eqhdl->irq, eqhdl);
11657         }
11658
11659         /* Unconfigure MSI-X capability structure */
11660         pci_free_irq_vectors(phba->pcidev);
11661
11662 vec_fail_out:
11663         return rc;
11664 }
11665
11666 /**
11667  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11668  * @phba: pointer to lpfc hba data structure.
11669  *
11670  * This routine is invoked to enable the MSI interrupt mode to device with
11671  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11672  * called to enable the MSI vector. The device driver is responsible for
11673  * calling the request_irq() to register MSI vector with a interrupt the
11674  * handler, which is done in this function.
11675  *
11676  * Return codes
11677  *      0 - successful
11678  *      other values - error
11679  **/
11680 static int
11681 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11682 {
11683         int rc, index;
11684         unsigned int cpu;
11685         struct lpfc_hba_eq_hdl *eqhdl;
11686
11687         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11688                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11689         if (rc > 0)
11690                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11691                                 "0487 PCI enable MSI mode success.\n");
11692         else {
11693                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11694                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11695                 return rc ? rc : -1;
11696         }
11697
11698         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11699                          0, LPFC_DRIVER_NAME, phba);
11700         if (rc) {
11701                 pci_free_irq_vectors(phba->pcidev);
11702                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11703                                 "0490 MSI request_irq failed (%d)\n", rc);
11704                 return rc;
11705         }
11706
11707         eqhdl = lpfc_get_eq_hdl(0);
11708         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11709
11710         cpu = cpumask_first(cpu_present_mask);
11711         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11712
11713         for (index = 0; index < phba->cfg_irq_chann; index++) {
11714                 eqhdl = lpfc_get_eq_hdl(index);
11715                 eqhdl->idx = index;
11716         }
11717
11718         return 0;
11719 }
11720
11721 /**
11722  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11723  * @phba: pointer to lpfc hba data structure.
11724  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11725  *
11726  * This routine is invoked to enable device interrupt and associate driver's
11727  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11728  * interface spec. Depends on the interrupt mode configured to the driver,
11729  * the driver will try to fallback from the configured interrupt mode to an
11730  * interrupt mode which is supported by the platform, kernel, and device in
11731  * the order of:
11732  * MSI-X -> MSI -> IRQ.
11733  *
11734  * Return codes
11735  *      0 - successful
11736  *      other values - error
11737  **/
11738 static uint32_t
11739 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11740 {
11741         uint32_t intr_mode = LPFC_INTR_ERROR;
11742         int retval, idx;
11743
11744         if (cfg_mode == 2) {
11745                 /* Preparation before conf_msi mbox cmd */
11746                 retval = 0;
11747                 if (!retval) {
11748                         /* Now, try to enable MSI-X interrupt mode */
11749                         retval = lpfc_sli4_enable_msix(phba);
11750                         if (!retval) {
11751                                 /* Indicate initialization to MSI-X mode */
11752                                 phba->intr_type = MSIX;
11753                                 intr_mode = 2;
11754                         }
11755                 }
11756         }
11757
11758         /* Fallback to MSI if MSI-X initialization failed */
11759         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11760                 retval = lpfc_sli4_enable_msi(phba);
11761                 if (!retval) {
11762                         /* Indicate initialization to MSI mode */
11763                         phba->intr_type = MSI;
11764                         intr_mode = 1;
11765                 }
11766         }
11767
11768         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11769         if (phba->intr_type == NONE) {
11770                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11771                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11772                 if (!retval) {
11773                         struct lpfc_hba_eq_hdl *eqhdl;
11774                         unsigned int cpu;
11775
11776                         /* Indicate initialization to INTx mode */
11777                         phba->intr_type = INTx;
11778                         intr_mode = 0;
11779
11780                         eqhdl = lpfc_get_eq_hdl(0);
11781                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11782
11783                         cpu = cpumask_first(cpu_present_mask);
11784                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11785                                                 cpu);
11786                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11787                                 eqhdl = lpfc_get_eq_hdl(idx);
11788                                 eqhdl->idx = idx;
11789                         }
11790                 }
11791         }
11792         return intr_mode;
11793 }
11794
11795 /**
11796  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11797  * @phba: pointer to lpfc hba data structure.
11798  *
11799  * This routine is invoked to disable device interrupt and disassociate
11800  * the driver's interrupt handler(s) from interrupt vector(s) to device
11801  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11802  * will release the interrupt vector(s) for the message signaled interrupt.
11803  **/
11804 static void
11805 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11806 {
11807         /* Disable the currently initialized interrupt mode */
11808         if (phba->intr_type == MSIX) {
11809                 int index;
11810                 struct lpfc_hba_eq_hdl *eqhdl;
11811
11812                 /* Free up MSI-X multi-message vectors */
11813                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11814                         eqhdl = lpfc_get_eq_hdl(index);
11815                         lpfc_irq_clear_aff(eqhdl);
11816                         irq_set_affinity_hint(eqhdl->irq, NULL);
11817                         free_irq(eqhdl->irq, eqhdl);
11818                 }
11819         } else {
11820                 free_irq(phba->pcidev->irq, phba);
11821         }
11822
11823         pci_free_irq_vectors(phba->pcidev);
11824
11825         /* Reset interrupt management states */
11826         phba->intr_type = NONE;
11827         phba->sli.slistat.sli_intr = 0;
11828 }
11829
11830 /**
11831  * lpfc_unset_hba - Unset SLI3 hba device initialization
11832  * @phba: pointer to lpfc hba data structure.
11833  *
11834  * This routine is invoked to unset the HBA device initialization steps to
11835  * a device with SLI-3 interface spec.
11836  **/
11837 static void
11838 lpfc_unset_hba(struct lpfc_hba *phba)
11839 {
11840         struct lpfc_vport *vport = phba->pport;
11841         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11842
11843         spin_lock_irq(shost->host_lock);
11844         vport->load_flag |= FC_UNLOADING;
11845         spin_unlock_irq(shost->host_lock);
11846
11847         kfree(phba->vpi_bmask);
11848         kfree(phba->vpi_ids);
11849
11850         lpfc_stop_hba_timers(phba);
11851
11852         phba->pport->work_port_events = 0;
11853
11854         lpfc_sli_hba_down(phba);
11855
11856         lpfc_sli_brdrestart(phba);
11857
11858         lpfc_sli_disable_intr(phba);
11859
11860         return;
11861 }
11862
11863 /**
11864  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11865  * @phba: Pointer to HBA context object.
11866  *
11867  * This function is called in the SLI4 code path to wait for completion
11868  * of device's XRIs exchange busy. It will check the XRI exchange busy
11869  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11870  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11871  * I/Os every 30 seconds, log error message, and wait forever. Only when
11872  * all XRI exchange busy complete, the driver unload shall proceed with
11873  * invoking the function reset ioctl mailbox command to the CNA and the
11874  * the rest of the driver unload resource release.
11875  **/
11876 static void
11877 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11878 {
11879         struct lpfc_sli4_hdw_queue *qp;
11880         int idx, ccnt;
11881         int wait_time = 0;
11882         int io_xri_cmpl = 1;
11883         int nvmet_xri_cmpl = 1;
11884         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11885
11886         /* Driver just aborted IOs during the hba_unset process.  Pause
11887          * here to give the HBA time to complete the IO and get entries
11888          * into the abts lists.
11889          */
11890         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11891
11892         /* Wait for NVME pending IO to flush back to transport. */
11893         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11894                 lpfc_nvme_wait_for_io_drain(phba);
11895
11896         ccnt = 0;
11897         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11898                 qp = &phba->sli4_hba.hdwq[idx];
11899                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11900                 if (!io_xri_cmpl) /* if list is NOT empty */
11901                         ccnt++;
11902         }
11903         if (ccnt)
11904                 io_xri_cmpl = 0;
11905
11906         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11907                 nvmet_xri_cmpl =
11908                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11909         }
11910
11911         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11912                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11913                         if (!nvmet_xri_cmpl)
11914                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11915                                                 "6424 NVMET XRI exchange busy "
11916                                                 "wait time: %d seconds.\n",
11917                                                 wait_time/1000);
11918                         if (!io_xri_cmpl)
11919                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11920                                                 "6100 IO XRI exchange busy "
11921                                                 "wait time: %d seconds.\n",
11922                                                 wait_time/1000);
11923                         if (!els_xri_cmpl)
11924                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11925                                                 "2878 ELS XRI exchange busy "
11926                                                 "wait time: %d seconds.\n",
11927                                                 wait_time/1000);
11928                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11929                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11930                 } else {
11931                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11932                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11933                 }
11934
11935                 ccnt = 0;
11936                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11937                         qp = &phba->sli4_hba.hdwq[idx];
11938                         io_xri_cmpl = list_empty(
11939                             &qp->lpfc_abts_io_buf_list);
11940                         if (!io_xri_cmpl) /* if list is NOT empty */
11941                                 ccnt++;
11942                 }
11943                 if (ccnt)
11944                         io_xri_cmpl = 0;
11945
11946                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11947                         nvmet_xri_cmpl = list_empty(
11948                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11949                 }
11950                 els_xri_cmpl =
11951                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11952
11953         }
11954 }
11955
11956 /**
11957  * lpfc_sli4_hba_unset - Unset the fcoe hba
11958  * @phba: Pointer to HBA context object.
11959  *
11960  * This function is called in the SLI4 code path to reset the HBA's FCoE
11961  * function. The caller is not required to hold any lock. This routine
11962  * issues PCI function reset mailbox command to reset the FCoE function.
11963  * At the end of the function, it calls lpfc_hba_down_post function to
11964  * free any pending commands.
11965  **/
11966 static void
11967 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11968 {
11969         int wait_cnt = 0;
11970         LPFC_MBOXQ_t *mboxq;
11971         struct pci_dev *pdev = phba->pcidev;
11972
11973         lpfc_stop_hba_timers(phba);
11974         if (phba->pport)
11975                 phba->sli4_hba.intr_enable = 0;
11976
11977         /*
11978          * Gracefully wait out the potential current outstanding asynchronous
11979          * mailbox command.
11980          */
11981
11982         /* First, block any pending async mailbox command from posted */
11983         spin_lock_irq(&phba->hbalock);
11984         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11985         spin_unlock_irq(&phba->hbalock);
11986         /* Now, trying to wait it out if we can */
11987         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11988                 msleep(10);
11989                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11990                         break;
11991         }
11992         /* Forcefully release the outstanding mailbox command if timed out */
11993         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11994                 spin_lock_irq(&phba->hbalock);
11995                 mboxq = phba->sli.mbox_active;
11996                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11997                 __lpfc_mbox_cmpl_put(phba, mboxq);
11998                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11999                 phba->sli.mbox_active = NULL;
12000                 spin_unlock_irq(&phba->hbalock);
12001         }
12002
12003         /* Abort all iocbs associated with the hba */
12004         lpfc_sli_hba_iocb_abort(phba);
12005
12006         /* Wait for completion of device XRI exchange busy */
12007         lpfc_sli4_xri_exchange_busy_wait(phba);
12008
12009         /* per-phba callback de-registration for hotplug event */
12010         if (phba->pport)
12011                 lpfc_cpuhp_remove(phba);
12012
12013         /* Disable PCI subsystem interrupt */
12014         lpfc_sli4_disable_intr(phba);
12015
12016         /* Disable SR-IOV if enabled */
12017         if (phba->cfg_sriov_nr_virtfn)
12018                 pci_disable_sriov(pdev);
12019
12020         /* Stop kthread signal shall trigger work_done one more time */
12021         kthread_stop(phba->worker_thread);
12022
12023         /* Disable FW logging to host memory */
12024         lpfc_ras_stop_fwlog(phba);
12025
12026         /* Unset the queues shared with the hardware then release all
12027          * allocated resources.
12028          */
12029         lpfc_sli4_queue_unset(phba);
12030         lpfc_sli4_queue_destroy(phba);
12031
12032         /* Reset SLI4 HBA FCoE function */
12033         lpfc_pci_function_reset(phba);
12034
12035         /* Free RAS DMA memory */
12036         if (phba->ras_fwlog.ras_enabled)
12037                 lpfc_sli4_ras_dma_free(phba);
12038
12039         /* Stop the SLI4 device port */
12040         if (phba->pport)
12041                 phba->pport->work_port_events = 0;
12042 }
12043
12044  /**
12045  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
12046  * @phba: Pointer to HBA context object.
12047  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12048  *
12049  * This function is called in the SLI4 code path to read the port's
12050  * sli4 capabilities.
12051  *
12052  * This function may be be called from any context that can block-wait
12053  * for the completion.  The expectation is that this routine is called
12054  * typically from probe_one or from the online routine.
12055  **/
12056 int
12057 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12058 {
12059         int rc;
12060         struct lpfc_mqe *mqe;
12061         struct lpfc_pc_sli4_params *sli4_params;
12062         uint32_t mbox_tmo;
12063
12064         rc = 0;
12065         mqe = &mboxq->u.mqe;
12066
12067         /* Read the port's SLI4 Parameters port capabilities */
12068         lpfc_pc_sli4_params(mboxq);
12069         if (!phba->sli4_hba.intr_enable)
12070                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12071         else {
12072                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12073                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12074         }
12075
12076         if (unlikely(rc))
12077                 return 1;
12078
12079         sli4_params = &phba->sli4_hba.pc_sli4_params;
12080         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
12081         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
12082         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
12083         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
12084                                              &mqe->un.sli4_params);
12085         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
12086                                              &mqe->un.sli4_params);
12087         sli4_params->proto_types = mqe->un.sli4_params.word3;
12088         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
12089         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
12090         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
12091         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
12092         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
12093         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
12094         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
12095         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
12096         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
12097         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
12098         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
12099         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
12100         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
12101         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
12102         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
12103         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
12104         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
12105         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
12106         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
12107         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
12108
12109         /* Make sure that sge_supp_len can be handled by the driver */
12110         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12111                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12112
12113         return rc;
12114 }
12115
12116 /**
12117  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
12118  * @phba: Pointer to HBA context object.
12119  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
12120  *
12121  * This function is called in the SLI4 code path to read the port's
12122  * sli4 capabilities.
12123  *
12124  * This function may be be called from any context that can block-wait
12125  * for the completion.  The expectation is that this routine is called
12126  * typically from probe_one or from the online routine.
12127  **/
12128 int
12129 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12130 {
12131         int rc;
12132         struct lpfc_mqe *mqe = &mboxq->u.mqe;
12133         struct lpfc_pc_sli4_params *sli4_params;
12134         uint32_t mbox_tmo;
12135         int length;
12136         bool exp_wqcq_pages = true;
12137         struct lpfc_sli4_parameters *mbx_sli4_parameters;
12138
12139         /*
12140          * By default, the driver assumes the SLI4 port requires RPI
12141          * header postings.  The SLI4_PARAM response will correct this
12142          * assumption.
12143          */
12144         phba->sli4_hba.rpi_hdrs_in_use = 1;
12145
12146         /* Read the port's SLI4 Config Parameters */
12147         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
12148                   sizeof(struct lpfc_sli4_cfg_mhdr));
12149         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
12150                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
12151                          length, LPFC_SLI4_MBX_EMBED);
12152         if (!phba->sli4_hba.intr_enable)
12153                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
12154         else {
12155                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
12156                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
12157         }
12158         if (unlikely(rc))
12159                 return rc;
12160         sli4_params = &phba->sli4_hba.pc_sli4_params;
12161         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
12162         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
12163         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12164         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12165         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12166                                              mbx_sli4_parameters);
12167         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12168                                              mbx_sli4_parameters);
12169         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12170                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12171         else
12172                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12173         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12174         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12175         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12176         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12177         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12178         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12179         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12180         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12181         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12182         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12183         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12184         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12185         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12186                                             mbx_sli4_parameters);
12187         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12188         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12189                                            mbx_sli4_parameters);
12190         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12191         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12192
12193         /* Check for Extended Pre-Registered SGL support */
12194         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12195
12196         /* Check for firmware nvme support */
12197         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12198                      bf_get(cfg_xib, mbx_sli4_parameters));
12199
12200         if (rc) {
12201                 /* Save this to indicate the Firmware supports NVME */
12202                 sli4_params->nvme = 1;
12203
12204                 /* Firmware NVME support, check driver FC4 NVME support */
12205                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12206                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12207                                         "6133 Disabling NVME support: "
12208                                         "FC4 type not supported: x%x\n",
12209                                         phba->cfg_enable_fc4_type);
12210                         goto fcponly;
12211                 }
12212         } else {
12213                 /* No firmware NVME support, check driver FC4 NVME support */
12214                 sli4_params->nvme = 0;
12215                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12216                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12217                                         "6101 Disabling NVME support: Not "
12218                                         "supported by firmware (%d %d) x%x\n",
12219                                         bf_get(cfg_nvme, mbx_sli4_parameters),
12220                                         bf_get(cfg_xib, mbx_sli4_parameters),
12221                                         phba->cfg_enable_fc4_type);
12222 fcponly:
12223                         phba->nvme_support = 0;
12224                         phba->nvmet_support = 0;
12225                         phba->cfg_nvmet_mrq = 0;
12226                         phba->cfg_nvme_seg_cnt = 0;
12227
12228                         /* If no FC4 type support, move to just SCSI support */
12229                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12230                                 return -ENODEV;
12231                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12232                 }
12233         }
12234
12235         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12236          * accommodate 512K and 1M IOs in a single nvme buf.
12237          */
12238         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12239                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12240
12241         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12242         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12243             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12244                 phba->cfg_enable_pbde = 0;
12245
12246         /*
12247          * To support Suppress Response feature we must satisfy 3 conditions.
12248          * lpfc_suppress_rsp module parameter must be set (default).
12249          * In SLI4-Parameters Descriptor:
12250          * Extended Inline Buffers (XIB) must be supported.
12251          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12252          * (double negative).
12253          */
12254         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12255             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12256                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12257         else
12258                 phba->cfg_suppress_rsp = 0;
12259
12260         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12261                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12262
12263         /* Make sure that sge_supp_len can be handled by the driver */
12264         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12265                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12266
12267         /*
12268          * Check whether the adapter supports an embedded copy of the
12269          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12270          * to use this option, 128-byte WQEs must be used.
12271          */
12272         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12273                 phba->fcp_embed_io = 1;
12274         else
12275                 phba->fcp_embed_io = 0;
12276
12277         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12278                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12279                         bf_get(cfg_xib, mbx_sli4_parameters),
12280                         phba->cfg_enable_pbde,
12281                         phba->fcp_embed_io, phba->nvme_support,
12282                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12283
12284         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12285             LPFC_SLI_INTF_IF_TYPE_2) &&
12286             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12287                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
12288                 exp_wqcq_pages = false;
12289
12290         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12291             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12292             exp_wqcq_pages &&
12293             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12294                 phba->enab_exp_wqcq_pages = 1;
12295         else
12296                 phba->enab_exp_wqcq_pages = 0;
12297         /*
12298          * Check if the SLI port supports MDS Diagnostics
12299          */
12300         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12301                 phba->mds_diags_support = 1;
12302         else
12303                 phba->mds_diags_support = 0;
12304
12305         /*
12306          * Check if the SLI port supports NSLER
12307          */
12308         if (bf_get(cfg_nsler, mbx_sli4_parameters))
12309                 phba->nsler = 1;
12310         else
12311                 phba->nsler = 0;
12312
12313         return 0;
12314 }
12315
12316 /**
12317  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12318  * @pdev: pointer to PCI device
12319  * @pid: pointer to PCI device identifier
12320  *
12321  * This routine is to be called to attach a device with SLI-3 interface spec
12322  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12323  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12324  * information of the device and driver to see if the driver state that it can
12325  * support this kind of device. If the match is successful, the driver core
12326  * invokes this routine. If this routine determines it can claim the HBA, it
12327  * does all the initialization that it needs to do to handle the HBA properly.
12328  *
12329  * Return code
12330  *      0 - driver can claim the device
12331  *      negative value - driver can not claim the device
12332  **/
12333 static int
12334 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12335 {
12336         struct lpfc_hba   *phba;
12337         struct lpfc_vport *vport = NULL;
12338         struct Scsi_Host  *shost = NULL;
12339         int error;
12340         uint32_t cfg_mode, intr_mode;
12341
12342         /* Allocate memory for HBA structure */
12343         phba = lpfc_hba_alloc(pdev);
12344         if (!phba)
12345                 return -ENOMEM;
12346
12347         /* Perform generic PCI device enabling operation */
12348         error = lpfc_enable_pci_dev(phba);
12349         if (error)
12350                 goto out_free_phba;
12351
12352         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12353         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12354         if (error)
12355                 goto out_disable_pci_dev;
12356
12357         /* Set up SLI-3 specific device PCI memory space */
12358         error = lpfc_sli_pci_mem_setup(phba);
12359         if (error) {
12360                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12361                                 "1402 Failed to set up pci memory space.\n");
12362                 goto out_disable_pci_dev;
12363         }
12364
12365         /* Set up SLI-3 specific device driver resources */
12366         error = lpfc_sli_driver_resource_setup(phba);
12367         if (error) {
12368                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12369                                 "1404 Failed to set up driver resource.\n");
12370                 goto out_unset_pci_mem_s3;
12371         }
12372
12373         /* Initialize and populate the iocb list per host */
12374
12375         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12376         if (error) {
12377                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12378                                 "1405 Failed to initialize iocb list.\n");
12379                 goto out_unset_driver_resource_s3;
12380         }
12381
12382         /* Set up common device driver resources */
12383         error = lpfc_setup_driver_resource_phase2(phba);
12384         if (error) {
12385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12386                                 "1406 Failed to set up driver resource.\n");
12387                 goto out_free_iocb_list;
12388         }
12389
12390         /* Get the default values for Model Name and Description */
12391         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12392
12393         /* Create SCSI host to the physical port */
12394         error = lpfc_create_shost(phba);
12395         if (error) {
12396                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12397                                 "1407 Failed to create scsi host.\n");
12398                 goto out_unset_driver_resource;
12399         }
12400
12401         /* Configure sysfs attributes */
12402         vport = phba->pport;
12403         error = lpfc_alloc_sysfs_attr(vport);
12404         if (error) {
12405                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12406                                 "1476 Failed to allocate sysfs attr\n");
12407                 goto out_destroy_shost;
12408         }
12409
12410         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12411         /* Now, trying to enable interrupt and bring up the device */
12412         cfg_mode = phba->cfg_use_msi;
12413         while (true) {
12414                 /* Put device to a known state before enabling interrupt */
12415                 lpfc_stop_port(phba);
12416                 /* Configure and enable interrupt */
12417                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12418                 if (intr_mode == LPFC_INTR_ERROR) {
12419                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12420                                         "0431 Failed to enable interrupt.\n");
12421                         error = -ENODEV;
12422                         goto out_free_sysfs_attr;
12423                 }
12424                 /* SLI-3 HBA setup */
12425                 if (lpfc_sli_hba_setup(phba)) {
12426                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12427                                         "1477 Failed to set up hba\n");
12428                         error = -ENODEV;
12429                         goto out_remove_device;
12430                 }
12431
12432                 /* Wait 50ms for the interrupts of previous mailbox commands */
12433                 msleep(50);
12434                 /* Check active interrupts on message signaled interrupts */
12435                 if (intr_mode == 0 ||
12436                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12437                         /* Log the current active interrupt mode */
12438                         phba->intr_mode = intr_mode;
12439                         lpfc_log_intr_mode(phba, intr_mode);
12440                         break;
12441                 } else {
12442                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12443                                         "0447 Configure interrupt mode (%d) "
12444                                         "failed active interrupt test.\n",
12445                                         intr_mode);
12446                         /* Disable the current interrupt mode */
12447                         lpfc_sli_disable_intr(phba);
12448                         /* Try next level of interrupt mode */
12449                         cfg_mode = --intr_mode;
12450                 }
12451         }
12452
12453         /* Perform post initialization setup */
12454         lpfc_post_init_setup(phba);
12455
12456         /* Check if there are static vports to be created. */
12457         lpfc_create_static_vport(phba);
12458
12459         return 0;
12460
12461 out_remove_device:
12462         lpfc_unset_hba(phba);
12463 out_free_sysfs_attr:
12464         lpfc_free_sysfs_attr(vport);
12465 out_destroy_shost:
12466         lpfc_destroy_shost(phba);
12467 out_unset_driver_resource:
12468         lpfc_unset_driver_resource_phase2(phba);
12469 out_free_iocb_list:
12470         lpfc_free_iocb_list(phba);
12471 out_unset_driver_resource_s3:
12472         lpfc_sli_driver_resource_unset(phba);
12473 out_unset_pci_mem_s3:
12474         lpfc_sli_pci_mem_unset(phba);
12475 out_disable_pci_dev:
12476         lpfc_disable_pci_dev(phba);
12477         if (shost)
12478                 scsi_host_put(shost);
12479 out_free_phba:
12480         lpfc_hba_free(phba);
12481         return error;
12482 }
12483
12484 /**
12485  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12486  * @pdev: pointer to PCI device
12487  *
12488  * This routine is to be called to disattach a device with SLI-3 interface
12489  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12490  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12491  * device to be removed from the PCI subsystem properly.
12492  **/
12493 static void
12494 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12495 {
12496         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
12497         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12498         struct lpfc_vport **vports;
12499         struct lpfc_hba   *phba = vport->phba;
12500         int i;
12501
12502         spin_lock_irq(&phba->hbalock);
12503         vport->load_flag |= FC_UNLOADING;
12504         spin_unlock_irq(&phba->hbalock);
12505
12506         lpfc_free_sysfs_attr(vport);
12507
12508         /* Release all the vports against this physical port */
12509         vports = lpfc_create_vport_work_array(phba);
12510         if (vports != NULL)
12511                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12512                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12513                                 continue;
12514                         fc_vport_terminate(vports[i]->fc_vport);
12515                 }
12516         lpfc_destroy_vport_work_array(phba, vports);
12517
12518         /* Remove FC host and then SCSI host with the physical port */
12519         fc_remove_host(shost);
12520         scsi_remove_host(shost);
12521
12522         lpfc_cleanup(vport);
12523
12524         /*
12525          * Bring down the SLI Layer. This step disable all interrupts,
12526          * clears the rings, discards all mailbox commands, and resets
12527          * the HBA.
12528          */
12529
12530         /* HBA interrupt will be disabled after this call */
12531         lpfc_sli_hba_down(phba);
12532         /* Stop kthread signal shall trigger work_done one more time */
12533         kthread_stop(phba->worker_thread);
12534         /* Final cleanup of txcmplq and reset the HBA */
12535         lpfc_sli_brdrestart(phba);
12536
12537         kfree(phba->vpi_bmask);
12538         kfree(phba->vpi_ids);
12539
12540         lpfc_stop_hba_timers(phba);
12541         spin_lock_irq(&phba->port_list_lock);
12542         list_del_init(&vport->listentry);
12543         spin_unlock_irq(&phba->port_list_lock);
12544
12545         lpfc_debugfs_terminate(vport);
12546
12547         /* Disable SR-IOV if enabled */
12548         if (phba->cfg_sriov_nr_virtfn)
12549                 pci_disable_sriov(pdev);
12550
12551         /* Disable interrupt */
12552         lpfc_sli_disable_intr(phba);
12553
12554         scsi_host_put(shost);
12555
12556         /*
12557          * Call scsi_free before mem_free since scsi bufs are released to their
12558          * corresponding pools here.
12559          */
12560         lpfc_scsi_free(phba);
12561         lpfc_free_iocb_list(phba);
12562
12563         lpfc_mem_free_all(phba);
12564
12565         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12566                           phba->hbqslimp.virt, phba->hbqslimp.phys);
12567
12568         /* Free resources associated with SLI2 interface */
12569         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12570                           phba->slim2p.virt, phba->slim2p.phys);
12571
12572         /* unmap adapter SLIM and Control Registers */
12573         iounmap(phba->ctrl_regs_memmap_p);
12574         iounmap(phba->slim_memmap_p);
12575
12576         lpfc_hba_free(phba);
12577
12578         pci_release_mem_regions(pdev);
12579         pci_disable_device(pdev);
12580 }
12581
12582 /**
12583  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12584  * @pdev: pointer to PCI device
12585  * @msg: power management message
12586  *
12587  * This routine is to be called from the kernel's PCI subsystem to support
12588  * system Power Management (PM) to device with SLI-3 interface spec. When
12589  * PM invokes this method, it quiesces the device by stopping the driver's
12590  * worker thread for the device, turning off device's interrupt and DMA,
12591  * and bring the device offline. Note that as the driver implements the
12592  * minimum PM requirements to a power-aware driver's PM support for the
12593  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12594  * to the suspend() method call will be treated as SUSPEND and the driver will
12595  * fully reinitialize its device during resume() method call, the driver will
12596  * set device to PCI_D3hot state in PCI config space instead of setting it
12597  * according to the @msg provided by the PM.
12598  *
12599  * Return code
12600  *      0 - driver suspended the device
12601  *      Error otherwise
12602  **/
12603 static int
12604 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12605 {
12606         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12607         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12608
12609         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12610                         "0473 PCI device Power Management suspend.\n");
12611
12612         /* Bring down the device */
12613         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12614         lpfc_offline(phba);
12615         kthread_stop(phba->worker_thread);
12616
12617         /* Disable interrupt from device */
12618         lpfc_sli_disable_intr(phba);
12619
12620         /* Save device state to PCI config space */
12621         pci_save_state(pdev);
12622         pci_set_power_state(pdev, PCI_D3hot);
12623
12624         return 0;
12625 }
12626
12627 /**
12628  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12629  * @pdev: pointer to PCI device
12630  *
12631  * This routine is to be called from the kernel's PCI subsystem to support
12632  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12633  * invokes this method, it restores the device's PCI config space state and
12634  * fully reinitializes the device and brings it online. Note that as the
12635  * driver implements the minimum PM requirements to a power-aware driver's
12636  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12637  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12638  * driver will fully reinitialize its device during resume() method call,
12639  * the device will be set to PCI_D0 directly in PCI config space before
12640  * restoring the state.
12641  *
12642  * Return code
12643  *      0 - driver suspended the device
12644  *      Error otherwise
12645  **/
12646 static int
12647 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12648 {
12649         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12650         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12651         uint32_t intr_mode;
12652         int error;
12653
12654         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12655                         "0452 PCI device Power Management resume.\n");
12656
12657         /* Restore device state from PCI config space */
12658         pci_set_power_state(pdev, PCI_D0);
12659         pci_restore_state(pdev);
12660
12661         /*
12662          * As the new kernel behavior of pci_restore_state() API call clears
12663          * device saved_state flag, need to save the restored state again.
12664          */
12665         pci_save_state(pdev);
12666
12667         if (pdev->is_busmaster)
12668                 pci_set_master(pdev);
12669
12670         /* Startup the kernel thread for this host adapter. */
12671         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12672                                         "lpfc_worker_%d", phba->brd_no);
12673         if (IS_ERR(phba->worker_thread)) {
12674                 error = PTR_ERR(phba->worker_thread);
12675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12676                                 "0434 PM resume failed to start worker "
12677                                 "thread: error=x%x.\n", error);
12678                 return error;
12679         }
12680
12681         /* Configure and enable interrupt */
12682         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12683         if (intr_mode == LPFC_INTR_ERROR) {
12684                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12685                                 "0430 PM resume Failed to enable interrupt\n");
12686                 return -EIO;
12687         } else
12688                 phba->intr_mode = intr_mode;
12689
12690         /* Restart HBA and bring it online */
12691         lpfc_sli_brdrestart(phba);
12692         lpfc_online(phba);
12693
12694         /* Log the current active interrupt mode */
12695         lpfc_log_intr_mode(phba, phba->intr_mode);
12696
12697         return 0;
12698 }
12699
12700 /**
12701  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12702  * @phba: pointer to lpfc hba data structure.
12703  *
12704  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12705  * aborts all the outstanding SCSI I/Os to the pci device.
12706  **/
12707 static void
12708 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12709 {
12710         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12711                         "2723 PCI channel I/O abort preparing for recovery\n");
12712
12713         /*
12714          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12715          * and let the SCSI mid-layer to retry them to recover.
12716          */
12717         lpfc_sli_abort_fcp_rings(phba);
12718 }
12719
12720 /**
12721  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12722  * @phba: pointer to lpfc hba data structure.
12723  *
12724  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12725  * disables the device interrupt and pci device, and aborts the internal FCP
12726  * pending I/Os.
12727  **/
12728 static void
12729 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12730 {
12731         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12732                         "2710 PCI channel disable preparing for reset\n");
12733
12734         /* Block any management I/Os to the device */
12735         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12736
12737         /* Block all SCSI devices' I/Os on the host */
12738         lpfc_scsi_dev_block(phba);
12739
12740         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12741         lpfc_sli_flush_io_rings(phba);
12742
12743         /* stop all timers */
12744         lpfc_stop_hba_timers(phba);
12745
12746         /* Disable interrupt and pci device */
12747         lpfc_sli_disable_intr(phba);
12748         pci_disable_device(phba->pcidev);
12749 }
12750
12751 /**
12752  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12753  * @phba: pointer to lpfc hba data structure.
12754  *
12755  * This routine is called to prepare the SLI3 device for PCI slot permanently
12756  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12757  * pending I/Os.
12758  **/
12759 static void
12760 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12761 {
12762         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12763                         "2711 PCI channel permanent disable for failure\n");
12764         /* Block all SCSI devices' I/Os on the host */
12765         lpfc_scsi_dev_block(phba);
12766
12767         /* stop all timers */
12768         lpfc_stop_hba_timers(phba);
12769
12770         /* Clean up all driver's outstanding SCSI I/Os */
12771         lpfc_sli_flush_io_rings(phba);
12772 }
12773
12774 /**
12775  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12776  * @pdev: pointer to PCI device.
12777  * @state: the current PCI connection state.
12778  *
12779  * This routine is called from the PCI subsystem for I/O error handling to
12780  * device with SLI-3 interface spec. This function is called by the PCI
12781  * subsystem after a PCI bus error affecting this device has been detected.
12782  * When this function is invoked, it will need to stop all the I/Os and
12783  * interrupt(s) to the device. Once that is done, it will return
12784  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12785  * as desired.
12786  *
12787  * Return codes
12788  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12789  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12790  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12791  **/
12792 static pci_ers_result_t
12793 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12794 {
12795         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12796         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12797
12798         switch (state) {
12799         case pci_channel_io_normal:
12800                 /* Non-fatal error, prepare for recovery */
12801                 lpfc_sli_prep_dev_for_recover(phba);
12802                 return PCI_ERS_RESULT_CAN_RECOVER;
12803         case pci_channel_io_frozen:
12804                 /* Fatal error, prepare for slot reset */
12805                 lpfc_sli_prep_dev_for_reset(phba);
12806                 return PCI_ERS_RESULT_NEED_RESET;
12807         case pci_channel_io_perm_failure:
12808                 /* Permanent failure, prepare for device down */
12809                 lpfc_sli_prep_dev_for_perm_failure(phba);
12810                 return PCI_ERS_RESULT_DISCONNECT;
12811         default:
12812                 /* Unknown state, prepare and request slot reset */
12813                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12814                                 "0472 Unknown PCI error state: x%x\n", state);
12815                 lpfc_sli_prep_dev_for_reset(phba);
12816                 return PCI_ERS_RESULT_NEED_RESET;
12817         }
12818 }
12819
12820 /**
12821  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12822  * @pdev: pointer to PCI device.
12823  *
12824  * This routine is called from the PCI subsystem for error handling to
12825  * device with SLI-3 interface spec. This is called after PCI bus has been
12826  * reset to restart the PCI card from scratch, as if from a cold-boot.
12827  * During the PCI subsystem error recovery, after driver returns
12828  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12829  * recovery and then call this routine before calling the .resume method
12830  * to recover the device. This function will initialize the HBA device,
12831  * enable the interrupt, but it will just put the HBA to offline state
12832  * without passing any I/O traffic.
12833  *
12834  * Return codes
12835  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12836  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12837  */
12838 static pci_ers_result_t
12839 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12840 {
12841         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12842         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12843         struct lpfc_sli *psli = &phba->sli;
12844         uint32_t intr_mode;
12845
12846         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12847         if (pci_enable_device_mem(pdev)) {
12848                 printk(KERN_ERR "lpfc: Cannot re-enable "
12849                         "PCI device after reset.\n");
12850                 return PCI_ERS_RESULT_DISCONNECT;
12851         }
12852
12853         pci_restore_state(pdev);
12854
12855         /*
12856          * As the new kernel behavior of pci_restore_state() API call clears
12857          * device saved_state flag, need to save the restored state again.
12858          */
12859         pci_save_state(pdev);
12860
12861         if (pdev->is_busmaster)
12862                 pci_set_master(pdev);
12863
12864         spin_lock_irq(&phba->hbalock);
12865         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12866         spin_unlock_irq(&phba->hbalock);
12867
12868         /* Configure and enable interrupt */
12869         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12870         if (intr_mode == LPFC_INTR_ERROR) {
12871                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12872                                 "0427 Cannot re-enable interrupt after "
12873                                 "slot reset.\n");
12874                 return PCI_ERS_RESULT_DISCONNECT;
12875         } else
12876                 phba->intr_mode = intr_mode;
12877
12878         /* Take device offline, it will perform cleanup */
12879         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12880         lpfc_offline(phba);
12881         lpfc_sli_brdrestart(phba);
12882
12883         /* Log the current active interrupt mode */
12884         lpfc_log_intr_mode(phba, phba->intr_mode);
12885
12886         return PCI_ERS_RESULT_RECOVERED;
12887 }
12888
12889 /**
12890  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12891  * @pdev: pointer to PCI device
12892  *
12893  * This routine is called from the PCI subsystem for error handling to device
12894  * with SLI-3 interface spec. It is called when kernel error recovery tells
12895  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12896  * error recovery. After this call, traffic can start to flow from this device
12897  * again.
12898  */
12899 static void
12900 lpfc_io_resume_s3(struct pci_dev *pdev)
12901 {
12902         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12903         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12904
12905         /* Bring device online, it will be no-op for non-fatal error resume */
12906         lpfc_online(phba);
12907 }
12908
12909 /**
12910  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12911  * @phba: pointer to lpfc hba data structure.
12912  *
12913  * returns the number of ELS/CT IOCBs to reserve
12914  **/
12915 int
12916 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12917 {
12918         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12919
12920         if (phba->sli_rev == LPFC_SLI_REV4) {
12921                 if (max_xri <= 100)
12922                         return 10;
12923                 else if (max_xri <= 256)
12924                         return 25;
12925                 else if (max_xri <= 512)
12926                         return 50;
12927                 else if (max_xri <= 1024)
12928                         return 100;
12929                 else if (max_xri <= 1536)
12930                         return 150;
12931                 else if (max_xri <= 2048)
12932                         return 200;
12933                 else
12934                         return 250;
12935         } else
12936                 return 0;
12937 }
12938
12939 /**
12940  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12941  * @phba: pointer to lpfc hba data structure.
12942  *
12943  * returns the number of ELS/CT + NVMET IOCBs to reserve
12944  **/
12945 int
12946 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12947 {
12948         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12949
12950         if (phba->nvmet_support)
12951                 max_xri += LPFC_NVMET_BUF_POST;
12952         return max_xri;
12953 }
12954
12955
12956 static int
12957 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12958         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12959         const struct firmware *fw)
12960 {
12961         int rc;
12962
12963         /* Three cases:  (1) FW was not supported on the detected adapter.
12964          * (2) FW update has been locked out administratively.
12965          * (3) Some other error during FW update.
12966          * In each case, an unmaskable message is written to the console
12967          * for admin diagnosis.
12968          */
12969         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12970             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12971              magic_number != MAGIC_NUMBER_G6) ||
12972             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12973              magic_number != MAGIC_NUMBER_G7)) {
12974                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12975                                 "3030 This firmware version is not supported on"
12976                                 " this HBA model. Device:%x Magic:%x Type:%x "
12977                                 "ID:%x Size %d %zd\n",
12978                                 phba->pcidev->device, magic_number, ftype, fid,
12979                                 fsize, fw->size);
12980                 rc = -EINVAL;
12981         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12982                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12983                                 "3021 Firmware downloads have been prohibited "
12984                                 "by a system configuration setting on "
12985                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12986                                 "%zd\n",
12987                                 phba->pcidev->device, magic_number, ftype, fid,
12988                                 fsize, fw->size);
12989                 rc = -EACCES;
12990         } else {
12991                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12992                                 "3022 FW Download failed. Add Status x%x "
12993                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12994                                 "%zd\n",
12995                                 offset, phba->pcidev->device, magic_number,
12996                                 ftype, fid, fsize, fw->size);
12997                 rc = -EIO;
12998         }
12999         return rc;
13000 }
13001
13002 /**
13003  * lpfc_write_firmware - attempt to write a firmware image to the port
13004  * @fw: pointer to firmware image returned from request_firmware.
13005  * @context: pointer to firmware image returned from request_firmware.
13006  *
13007  **/
13008 static void
13009 lpfc_write_firmware(const struct firmware *fw, void *context)
13010 {
13011         struct lpfc_hba *phba = (struct lpfc_hba *)context;
13012         char fwrev[FW_REV_STR_SIZE];
13013         struct lpfc_grp_hdr *image;
13014         struct list_head dma_buffer_list;
13015         int i, rc = 0;
13016         struct lpfc_dmabuf *dmabuf, *next;
13017         uint32_t offset = 0, temp_offset = 0;
13018         uint32_t magic_number, ftype, fid, fsize;
13019
13020         /* It can be null in no-wait mode, sanity check */
13021         if (!fw) {
13022                 rc = -ENXIO;
13023                 goto out;
13024         }
13025         image = (struct lpfc_grp_hdr *)fw->data;
13026
13027         magic_number = be32_to_cpu(image->magic_number);
13028         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
13029         fid = bf_get_be32(lpfc_grp_hdr_id, image);
13030         fsize = be32_to_cpu(image->size);
13031
13032         INIT_LIST_HEAD(&dma_buffer_list);
13033         lpfc_decode_firmware_rev(phba, fwrev, 1);
13034         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
13035                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13036                                 "3023 Updating Firmware, Current Version:%s "
13037                                 "New Version:%s\n",
13038                                 fwrev, image->revision);
13039                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
13040                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
13041                                          GFP_KERNEL);
13042                         if (!dmabuf) {
13043                                 rc = -ENOMEM;
13044                                 goto release_out;
13045                         }
13046                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
13047                                                           SLI4_PAGE_SIZE,
13048                                                           &dmabuf->phys,
13049                                                           GFP_KERNEL);
13050                         if (!dmabuf->virt) {
13051                                 kfree(dmabuf);
13052                                 rc = -ENOMEM;
13053                                 goto release_out;
13054                         }
13055                         list_add_tail(&dmabuf->list, &dma_buffer_list);
13056                 }
13057                 while (offset < fw->size) {
13058                         temp_offset = offset;
13059                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
13060                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
13061                                         memcpy(dmabuf->virt,
13062                                                fw->data + temp_offset,
13063                                                fw->size - temp_offset);
13064                                         temp_offset = fw->size;
13065                                         break;
13066                                 }
13067                                 memcpy(dmabuf->virt, fw->data + temp_offset,
13068                                        SLI4_PAGE_SIZE);
13069                                 temp_offset += SLI4_PAGE_SIZE;
13070                         }
13071                         rc = lpfc_wr_object(phba, &dma_buffer_list,
13072                                     (fw->size - offset), &offset);
13073                         if (rc) {
13074                                 rc = lpfc_log_write_firmware_error(phba, offset,
13075                                                                    magic_number,
13076                                                                    ftype,
13077                                                                    fid,
13078                                                                    fsize,
13079                                                                    fw);
13080                                 goto release_out;
13081                         }
13082                 }
13083                 rc = offset;
13084         } else
13085                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13086                                 "3029 Skipped Firmware update, Current "
13087                                 "Version:%s New Version:%s\n",
13088                                 fwrev, image->revision);
13089
13090 release_out:
13091         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
13092                 list_del(&dmabuf->list);
13093                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
13094                                   dmabuf->virt, dmabuf->phys);
13095                 kfree(dmabuf);
13096         }
13097         release_firmware(fw);
13098 out:
13099         if (rc < 0)
13100                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13101                                 "3062 Firmware update error, status %d.\n", rc);
13102         else
13103                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13104                                 "3024 Firmware update success: size %d.\n", rc);
13105 }
13106
13107 /**
13108  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
13109  * @phba: pointer to lpfc hba data structure.
13110  * @fw_upgrade: which firmware to update.
13111  *
13112  * This routine is called to perform Linux generic firmware upgrade on device
13113  * that supports such feature.
13114  **/
13115 int
13116 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
13117 {
13118         uint8_t file_name[ELX_MODEL_NAME_SIZE];
13119         int ret;
13120         const struct firmware *fw;
13121
13122         /* Only supported on SLI4 interface type 2 for now */
13123         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
13124             LPFC_SLI_INTF_IF_TYPE_2)
13125                 return -EPERM;
13126
13127         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
13128
13129         if (fw_upgrade == INT_FW_UPGRADE) {
13130                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
13131                                         file_name, &phba->pcidev->dev,
13132                                         GFP_KERNEL, (void *)phba,
13133                                         lpfc_write_firmware);
13134         } else if (fw_upgrade == RUN_FW_UPGRADE) {
13135                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
13136                 if (!ret)
13137                         lpfc_write_firmware(fw, (void *)phba);
13138         } else {
13139                 ret = -EINVAL;
13140         }
13141
13142         return ret;
13143 }
13144
13145 /**
13146  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
13147  * @pdev: pointer to PCI device
13148  * @pid: pointer to PCI device identifier
13149  *
13150  * This routine is called from the kernel's PCI subsystem to device with
13151  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13152  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13153  * information of the device and driver to see if the driver state that it
13154  * can support this kind of device. If the match is successful, the driver
13155  * core invokes this routine. If this routine determines it can claim the HBA,
13156  * it does all the initialization that it needs to do to handle the HBA
13157  * properly.
13158  *
13159  * Return code
13160  *      0 - driver can claim the device
13161  *      negative value - driver can not claim the device
13162  **/
13163 static int
13164 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13165 {
13166         struct lpfc_hba   *phba;
13167         struct lpfc_vport *vport = NULL;
13168         struct Scsi_Host  *shost = NULL;
13169         int error;
13170         uint32_t cfg_mode, intr_mode;
13171
13172         /* Allocate memory for HBA structure */
13173         phba = lpfc_hba_alloc(pdev);
13174         if (!phba)
13175                 return -ENOMEM;
13176
13177         /* Perform generic PCI device enabling operation */
13178         error = lpfc_enable_pci_dev(phba);
13179         if (error)
13180                 goto out_free_phba;
13181
13182         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13183         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13184         if (error)
13185                 goto out_disable_pci_dev;
13186
13187         /* Set up SLI-4 specific device PCI memory space */
13188         error = lpfc_sli4_pci_mem_setup(phba);
13189         if (error) {
13190                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13191                                 "1410 Failed to set up pci memory space.\n");
13192                 goto out_disable_pci_dev;
13193         }
13194
13195         /* Set up SLI-4 Specific device driver resources */
13196         error = lpfc_sli4_driver_resource_setup(phba);
13197         if (error) {
13198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13199                                 "1412 Failed to set up driver resource.\n");
13200                 goto out_unset_pci_mem_s4;
13201         }
13202
13203         INIT_LIST_HEAD(&phba->active_rrq_list);
13204         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13205
13206         /* Set up common device driver resources */
13207         error = lpfc_setup_driver_resource_phase2(phba);
13208         if (error) {
13209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13210                                 "1414 Failed to set up driver resource.\n");
13211                 goto out_unset_driver_resource_s4;
13212         }
13213
13214         /* Get the default values for Model Name and Description */
13215         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13216
13217         /* Now, trying to enable interrupt and bring up the device */
13218         cfg_mode = phba->cfg_use_msi;
13219
13220         /* Put device to a known state before enabling interrupt */
13221         phba->pport = NULL;
13222         lpfc_stop_port(phba);
13223
13224         /* Init cpu_map array */
13225         lpfc_cpu_map_array_init(phba);
13226
13227         /* Init hba_eq_hdl array */
13228         lpfc_hba_eq_hdl_array_init(phba);
13229
13230         /* Configure and enable interrupt */
13231         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13232         if (intr_mode == LPFC_INTR_ERROR) {
13233                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13234                                 "0426 Failed to enable interrupt.\n");
13235                 error = -ENODEV;
13236                 goto out_unset_driver_resource;
13237         }
13238         /* Default to single EQ for non-MSI-X */
13239         if (phba->intr_type != MSIX) {
13240                 phba->cfg_irq_chann = 1;
13241                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13242                         if (phba->nvmet_support)
13243                                 phba->cfg_nvmet_mrq = 1;
13244                 }
13245         }
13246         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13247
13248         /* Create SCSI host to the physical port */
13249         error = lpfc_create_shost(phba);
13250         if (error) {
13251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13252                                 "1415 Failed to create scsi host.\n");
13253                 goto out_disable_intr;
13254         }
13255         vport = phba->pport;
13256         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13257
13258         /* Configure sysfs attributes */
13259         error = lpfc_alloc_sysfs_attr(vport);
13260         if (error) {
13261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13262                                 "1416 Failed to allocate sysfs attr\n");
13263                 goto out_destroy_shost;
13264         }
13265
13266         /* Set up SLI-4 HBA */
13267         if (lpfc_sli4_hba_setup(phba)) {
13268                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13269                                 "1421 Failed to set up hba\n");
13270                 error = -ENODEV;
13271                 goto out_free_sysfs_attr;
13272         }
13273
13274         /* Log the current active interrupt mode */
13275         phba->intr_mode = intr_mode;
13276         lpfc_log_intr_mode(phba, intr_mode);
13277
13278         /* Perform post initialization setup */
13279         lpfc_post_init_setup(phba);
13280
13281         /* NVME support in FW earlier in the driver load corrects the
13282          * FC4 type making a check for nvme_support unnecessary.
13283          */
13284         if (phba->nvmet_support == 0) {
13285                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13286                         /* Create NVME binding with nvme_fc_transport. This
13287                          * ensures the vport is initialized.  If the localport
13288                          * create fails, it should not unload the driver to
13289                          * support field issues.
13290                          */
13291                         error = lpfc_nvme_create_localport(vport);
13292                         if (error) {
13293                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13294                                                 "6004 NVME registration "
13295                                                 "failed, error x%x\n",
13296                                                 error);
13297                         }
13298                 }
13299         }
13300
13301         /* check for firmware upgrade or downgrade */
13302         if (phba->cfg_request_firmware_upgrade)
13303                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13304
13305         /* Check if there are static vports to be created. */
13306         lpfc_create_static_vport(phba);
13307
13308         /* Enable RAS FW log support */
13309         lpfc_sli4_ras_setup(phba);
13310
13311         INIT_LIST_HEAD(&phba->poll_list);
13312         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
13313         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13314
13315         return 0;
13316
13317 out_free_sysfs_attr:
13318         lpfc_free_sysfs_attr(vport);
13319 out_destroy_shost:
13320         lpfc_destroy_shost(phba);
13321 out_disable_intr:
13322         lpfc_sli4_disable_intr(phba);
13323 out_unset_driver_resource:
13324         lpfc_unset_driver_resource_phase2(phba);
13325 out_unset_driver_resource_s4:
13326         lpfc_sli4_driver_resource_unset(phba);
13327 out_unset_pci_mem_s4:
13328         lpfc_sli4_pci_mem_unset(phba);
13329 out_disable_pci_dev:
13330         lpfc_disable_pci_dev(phba);
13331         if (shost)
13332                 scsi_host_put(shost);
13333 out_free_phba:
13334         lpfc_hba_free(phba);
13335         return error;
13336 }
13337
13338 /**
13339  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13340  * @pdev: pointer to PCI device
13341  *
13342  * This routine is called from the kernel's PCI subsystem to device with
13343  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13344  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13345  * device to be removed from the PCI subsystem properly.
13346  **/
13347 static void
13348 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13349 {
13350         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13351         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13352         struct lpfc_vport **vports;
13353         struct lpfc_hba *phba = vport->phba;
13354         int i;
13355
13356         /* Mark the device unloading flag */
13357         spin_lock_irq(&phba->hbalock);
13358         vport->load_flag |= FC_UNLOADING;
13359         spin_unlock_irq(&phba->hbalock);
13360
13361         /* Free the HBA sysfs attributes */
13362         lpfc_free_sysfs_attr(vport);
13363
13364         /* Release all the vports against this physical port */
13365         vports = lpfc_create_vport_work_array(phba);
13366         if (vports != NULL)
13367                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13368                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13369                                 continue;
13370                         fc_vport_terminate(vports[i]->fc_vport);
13371                 }
13372         lpfc_destroy_vport_work_array(phba, vports);
13373
13374         /* Remove FC host and then SCSI host with the physical port */
13375         fc_remove_host(shost);
13376         scsi_remove_host(shost);
13377
13378         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
13379          * localports are destroyed after to cleanup all transport memory.
13380          */
13381         lpfc_cleanup(vport);
13382         lpfc_nvmet_destroy_targetport(phba);
13383         lpfc_nvme_destroy_localport(vport);
13384
13385         /* De-allocate multi-XRI pools */
13386         if (phba->cfg_xri_rebalancing)
13387                 lpfc_destroy_multixri_pools(phba);
13388
13389         /*
13390          * Bring down the SLI Layer. This step disables all interrupts,
13391          * clears the rings, discards all mailbox commands, and resets
13392          * the HBA FCoE function.
13393          */
13394         lpfc_debugfs_terminate(vport);
13395
13396         lpfc_stop_hba_timers(phba);
13397         spin_lock_irq(&phba->port_list_lock);
13398         list_del_init(&vport->listentry);
13399         spin_unlock_irq(&phba->port_list_lock);
13400
13401         /* Perform scsi free before driver resource_unset since scsi
13402          * buffers are released to their corresponding pools here.
13403          */
13404         lpfc_io_free(phba);
13405         lpfc_free_iocb_list(phba);
13406         lpfc_sli4_hba_unset(phba);
13407
13408         lpfc_unset_driver_resource_phase2(phba);
13409         lpfc_sli4_driver_resource_unset(phba);
13410
13411         /* Unmap adapter Control and Doorbell registers */
13412         lpfc_sli4_pci_mem_unset(phba);
13413
13414         /* Release PCI resources and disable device's PCI function */
13415         scsi_host_put(shost);
13416         lpfc_disable_pci_dev(phba);
13417
13418         /* Finally, free the driver's device data structure */
13419         lpfc_hba_free(phba);
13420
13421         return;
13422 }
13423
13424 /**
13425  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13426  * @pdev: pointer to PCI device
13427  * @msg: power management message
13428  *
13429  * This routine is called from the kernel's PCI subsystem to support system
13430  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13431  * this method, it quiesces the device by stopping the driver's worker
13432  * thread for the device, turning off device's interrupt and DMA, and bring
13433  * the device offline. Note that as the driver implements the minimum PM
13434  * requirements to a power-aware driver's PM support for suspend/resume -- all
13435  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13436  * method call will be treated as SUSPEND and the driver will fully
13437  * reinitialize its device during resume() method call, the driver will set
13438  * device to PCI_D3hot state in PCI config space instead of setting it
13439  * according to the @msg provided by the PM.
13440  *
13441  * Return code
13442  *      0 - driver suspended the device
13443  *      Error otherwise
13444  **/
13445 static int
13446 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13447 {
13448         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13449         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13450
13451         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13452                         "2843 PCI device Power Management suspend.\n");
13453
13454         /* Bring down the device */
13455         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13456         lpfc_offline(phba);
13457         kthread_stop(phba->worker_thread);
13458
13459         /* Disable interrupt from device */
13460         lpfc_sli4_disable_intr(phba);
13461         lpfc_sli4_queue_destroy(phba);
13462
13463         /* Save device state to PCI config space */
13464         pci_save_state(pdev);
13465         pci_set_power_state(pdev, PCI_D3hot);
13466
13467         return 0;
13468 }
13469
13470 /**
13471  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13472  * @pdev: pointer to PCI device
13473  *
13474  * This routine is called from the kernel's PCI subsystem to support system
13475  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13476  * this method, it restores the device's PCI config space state and fully
13477  * reinitializes the device and brings it online. Note that as the driver
13478  * implements the minimum PM requirements to a power-aware driver's PM for
13479  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13480  * to the suspend() method call will be treated as SUSPEND and the driver
13481  * will fully reinitialize its device during resume() method call, the device
13482  * will be set to PCI_D0 directly in PCI config space before restoring the
13483  * state.
13484  *
13485  * Return code
13486  *      0 - driver suspended the device
13487  *      Error otherwise
13488  **/
13489 static int
13490 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13491 {
13492         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13493         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13494         uint32_t intr_mode;
13495         int error;
13496
13497         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13498                         "0292 PCI device Power Management resume.\n");
13499
13500         /* Restore device state from PCI config space */
13501         pci_set_power_state(pdev, PCI_D0);
13502         pci_restore_state(pdev);
13503
13504         /*
13505          * As the new kernel behavior of pci_restore_state() API call clears
13506          * device saved_state flag, need to save the restored state again.
13507          */
13508         pci_save_state(pdev);
13509
13510         if (pdev->is_busmaster)
13511                 pci_set_master(pdev);
13512
13513          /* Startup the kernel thread for this host adapter. */
13514         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13515                                         "lpfc_worker_%d", phba->brd_no);
13516         if (IS_ERR(phba->worker_thread)) {
13517                 error = PTR_ERR(phba->worker_thread);
13518                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13519                                 "0293 PM resume failed to start worker "
13520                                 "thread: error=x%x.\n", error);
13521                 return error;
13522         }
13523
13524         /* Configure and enable interrupt */
13525         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13526         if (intr_mode == LPFC_INTR_ERROR) {
13527                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13528                                 "0294 PM resume Failed to enable interrupt\n");
13529                 return -EIO;
13530         } else
13531                 phba->intr_mode = intr_mode;
13532
13533         /* Restart HBA and bring it online */
13534         lpfc_sli_brdrestart(phba);
13535         lpfc_online(phba);
13536
13537         /* Log the current active interrupt mode */
13538         lpfc_log_intr_mode(phba, phba->intr_mode);
13539
13540         return 0;
13541 }
13542
13543 /**
13544  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13545  * @phba: pointer to lpfc hba data structure.
13546  *
13547  * This routine is called to prepare the SLI4 device for PCI slot recover. It
13548  * aborts all the outstanding SCSI I/Os to the pci device.
13549  **/
13550 static void
13551 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13552 {
13553         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13554                         "2828 PCI channel I/O abort preparing for recovery\n");
13555         /*
13556          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13557          * and let the SCSI mid-layer to retry them to recover.
13558          */
13559         lpfc_sli_abort_fcp_rings(phba);
13560 }
13561
13562 /**
13563  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13564  * @phba: pointer to lpfc hba data structure.
13565  *
13566  * This routine is called to prepare the SLI4 device for PCI slot reset. It
13567  * disables the device interrupt and pci device, and aborts the internal FCP
13568  * pending I/Os.
13569  **/
13570 static void
13571 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13572 {
13573         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13574                         "2826 PCI channel disable preparing for reset\n");
13575
13576         /* Block any management I/Os to the device */
13577         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13578
13579         /* Block all SCSI devices' I/Os on the host */
13580         lpfc_scsi_dev_block(phba);
13581
13582         /* Flush all driver's outstanding I/Os as we are to reset */
13583         lpfc_sli_flush_io_rings(phba);
13584
13585         /* stop all timers */
13586         lpfc_stop_hba_timers(phba);
13587
13588         /* Disable interrupt and pci device */
13589         lpfc_sli4_disable_intr(phba);
13590         lpfc_sli4_queue_destroy(phba);
13591         pci_disable_device(phba->pcidev);
13592 }
13593
13594 /**
13595  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13596  * @phba: pointer to lpfc hba data structure.
13597  *
13598  * This routine is called to prepare the SLI4 device for PCI slot permanently
13599  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13600  * pending I/Os.
13601  **/
13602 static void
13603 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13604 {
13605         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13606                         "2827 PCI channel permanent disable for failure\n");
13607
13608         /* Block all SCSI devices' I/Os on the host */
13609         lpfc_scsi_dev_block(phba);
13610
13611         /* stop all timers */
13612         lpfc_stop_hba_timers(phba);
13613
13614         /* Clean up all driver's outstanding I/Os */
13615         lpfc_sli_flush_io_rings(phba);
13616 }
13617
13618 /**
13619  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13620  * @pdev: pointer to PCI device.
13621  * @state: the current PCI connection state.
13622  *
13623  * This routine is called from the PCI subsystem for error handling to device
13624  * with SLI-4 interface spec. This function is called by the PCI subsystem
13625  * after a PCI bus error affecting this device has been detected. When this
13626  * function is invoked, it will need to stop all the I/Os and interrupt(s)
13627  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13628  * for the PCI subsystem to perform proper recovery as desired.
13629  *
13630  * Return codes
13631  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13632  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13633  **/
13634 static pci_ers_result_t
13635 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13636 {
13637         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13638         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13639
13640         switch (state) {
13641         case pci_channel_io_normal:
13642                 /* Non-fatal error, prepare for recovery */
13643                 lpfc_sli4_prep_dev_for_recover(phba);
13644                 return PCI_ERS_RESULT_CAN_RECOVER;
13645         case pci_channel_io_frozen:
13646                 /* Fatal error, prepare for slot reset */
13647                 lpfc_sli4_prep_dev_for_reset(phba);
13648                 return PCI_ERS_RESULT_NEED_RESET;
13649         case pci_channel_io_perm_failure:
13650                 /* Permanent failure, prepare for device down */
13651                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13652                 return PCI_ERS_RESULT_DISCONNECT;
13653         default:
13654                 /* Unknown state, prepare and request slot reset */
13655                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13656                                 "2825 Unknown PCI error state: x%x\n", state);
13657                 lpfc_sli4_prep_dev_for_reset(phba);
13658                 return PCI_ERS_RESULT_NEED_RESET;
13659         }
13660 }
13661
13662 /**
13663  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13664  * @pdev: pointer to PCI device.
13665  *
13666  * This routine is called from the PCI subsystem for error handling to device
13667  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13668  * restart the PCI card from scratch, as if from a cold-boot. During the
13669  * PCI subsystem error recovery, after the driver returns
13670  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13671  * recovery and then call this routine before calling the .resume method to
13672  * recover the device. This function will initialize the HBA device, enable
13673  * the interrupt, but it will just put the HBA to offline state without
13674  * passing any I/O traffic.
13675  *
13676  * Return codes
13677  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13678  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13679  */
13680 static pci_ers_result_t
13681 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13682 {
13683         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13684         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13685         struct lpfc_sli *psli = &phba->sli;
13686         uint32_t intr_mode;
13687
13688         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13689         if (pci_enable_device_mem(pdev)) {
13690                 printk(KERN_ERR "lpfc: Cannot re-enable "
13691                         "PCI device after reset.\n");
13692                 return PCI_ERS_RESULT_DISCONNECT;
13693         }
13694
13695         pci_restore_state(pdev);
13696
13697         /*
13698          * As the new kernel behavior of pci_restore_state() API call clears
13699          * device saved_state flag, need to save the restored state again.
13700          */
13701         pci_save_state(pdev);
13702
13703         if (pdev->is_busmaster)
13704                 pci_set_master(pdev);
13705
13706         spin_lock_irq(&phba->hbalock);
13707         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13708         spin_unlock_irq(&phba->hbalock);
13709
13710         /* Configure and enable interrupt */
13711         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13712         if (intr_mode == LPFC_INTR_ERROR) {
13713                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13714                                 "2824 Cannot re-enable interrupt after "
13715                                 "slot reset.\n");
13716                 return PCI_ERS_RESULT_DISCONNECT;
13717         } else
13718                 phba->intr_mode = intr_mode;
13719
13720         /* Log the current active interrupt mode */
13721         lpfc_log_intr_mode(phba, phba->intr_mode);
13722
13723         return PCI_ERS_RESULT_RECOVERED;
13724 }
13725
13726 /**
13727  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13728  * @pdev: pointer to PCI device
13729  *
13730  * This routine is called from the PCI subsystem for error handling to device
13731  * with SLI-4 interface spec. It is called when kernel error recovery tells
13732  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13733  * error recovery. After this call, traffic can start to flow from this device
13734  * again.
13735  **/
13736 static void
13737 lpfc_io_resume_s4(struct pci_dev *pdev)
13738 {
13739         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13740         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13741
13742         /*
13743          * In case of slot reset, as function reset is performed through
13744          * mailbox command which needs DMA to be enabled, this operation
13745          * has to be moved to the io resume phase. Taking device offline
13746          * will perform the necessary cleanup.
13747          */
13748         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13749                 /* Perform device reset */
13750                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13751                 lpfc_offline(phba);
13752                 lpfc_sli_brdrestart(phba);
13753                 /* Bring the device back online */
13754                 lpfc_online(phba);
13755         }
13756 }
13757
13758 /**
13759  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13760  * @pdev: pointer to PCI device
13761  * @pid: pointer to PCI device identifier
13762  *
13763  * This routine is to be registered to the kernel's PCI subsystem. When an
13764  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13765  * at PCI device-specific information of the device and driver to see if the
13766  * driver state that it can support this kind of device. If the match is
13767  * successful, the driver core invokes this routine. This routine dispatches
13768  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13769  * do all the initialization that it needs to do to handle the HBA device
13770  * properly.
13771  *
13772  * Return code
13773  *      0 - driver can claim the device
13774  *      negative value - driver can not claim the device
13775  **/
13776 static int
13777 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13778 {
13779         int rc;
13780         struct lpfc_sli_intf intf;
13781
13782         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13783                 return -ENODEV;
13784
13785         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13786             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13787                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13788         else
13789                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13790
13791         return rc;
13792 }
13793
13794 /**
13795  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13796  * @pdev: pointer to PCI device
13797  *
13798  * This routine is to be registered to the kernel's PCI subsystem. When an
13799  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13800  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13801  * remove routine, which will perform all the necessary cleanup for the
13802  * device to be removed from the PCI subsystem properly.
13803  **/
13804 static void
13805 lpfc_pci_remove_one(struct pci_dev *pdev)
13806 {
13807         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13808         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13809
13810         switch (phba->pci_dev_grp) {
13811         case LPFC_PCI_DEV_LP:
13812                 lpfc_pci_remove_one_s3(pdev);
13813                 break;
13814         case LPFC_PCI_DEV_OC:
13815                 lpfc_pci_remove_one_s4(pdev);
13816                 break;
13817         default:
13818                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13819                                 "1424 Invalid PCI device group: 0x%x\n",
13820                                 phba->pci_dev_grp);
13821                 break;
13822         }
13823         return;
13824 }
13825
13826 /**
13827  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13828  * @pdev: pointer to PCI device
13829  * @msg: power management message
13830  *
13831  * This routine is to be registered to the kernel's PCI subsystem to support
13832  * system Power Management (PM). When PM invokes this method, it dispatches
13833  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13834  * suspend the device.
13835  *
13836  * Return code
13837  *      0 - driver suspended the device
13838  *      Error otherwise
13839  **/
13840 static int
13841 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13842 {
13843         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13844         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13845         int rc = -ENODEV;
13846
13847         switch (phba->pci_dev_grp) {
13848         case LPFC_PCI_DEV_LP:
13849                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13850                 break;
13851         case LPFC_PCI_DEV_OC:
13852                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13853                 break;
13854         default:
13855                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13856                                 "1425 Invalid PCI device group: 0x%x\n",
13857                                 phba->pci_dev_grp);
13858                 break;
13859         }
13860         return rc;
13861 }
13862
13863 /**
13864  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13865  * @pdev: pointer to PCI device
13866  *
13867  * This routine is to be registered to the kernel's PCI subsystem to support
13868  * system Power Management (PM). When PM invokes this method, it dispatches
13869  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13870  * resume the device.
13871  *
13872  * Return code
13873  *      0 - driver suspended the device
13874  *      Error otherwise
13875  **/
13876 static int
13877 lpfc_pci_resume_one(struct pci_dev *pdev)
13878 {
13879         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13880         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13881         int rc = -ENODEV;
13882
13883         switch (phba->pci_dev_grp) {
13884         case LPFC_PCI_DEV_LP:
13885                 rc = lpfc_pci_resume_one_s3(pdev);
13886                 break;
13887         case LPFC_PCI_DEV_OC:
13888                 rc = lpfc_pci_resume_one_s4(pdev);
13889                 break;
13890         default:
13891                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13892                                 "1426 Invalid PCI device group: 0x%x\n",
13893                                 phba->pci_dev_grp);
13894                 break;
13895         }
13896         return rc;
13897 }
13898
13899 /**
13900  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13901  * @pdev: pointer to PCI device.
13902  * @state: the current PCI connection state.
13903  *
13904  * This routine is registered to the PCI subsystem for error handling. This
13905  * function is called by the PCI subsystem after a PCI bus error affecting
13906  * this device has been detected. When this routine is invoked, it dispatches
13907  * the action to the proper SLI-3 or SLI-4 device error detected handling
13908  * routine, which will perform the proper error detected operation.
13909  *
13910  * Return codes
13911  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13912  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13913  **/
13914 static pci_ers_result_t
13915 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13916 {
13917         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13918         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13919         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13920
13921         switch (phba->pci_dev_grp) {
13922         case LPFC_PCI_DEV_LP:
13923                 rc = lpfc_io_error_detected_s3(pdev, state);
13924                 break;
13925         case LPFC_PCI_DEV_OC:
13926                 rc = lpfc_io_error_detected_s4(pdev, state);
13927                 break;
13928         default:
13929                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13930                                 "1427 Invalid PCI device group: 0x%x\n",
13931                                 phba->pci_dev_grp);
13932                 break;
13933         }
13934         return rc;
13935 }
13936
13937 /**
13938  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13939  * @pdev: pointer to PCI device.
13940  *
13941  * This routine is registered to the PCI subsystem for error handling. This
13942  * function is called after PCI bus has been reset to restart the PCI card
13943  * from scratch, as if from a cold-boot. When this routine is invoked, it
13944  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13945  * routine, which will perform the proper device reset.
13946  *
13947  * Return codes
13948  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13949  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13950  **/
13951 static pci_ers_result_t
13952 lpfc_io_slot_reset(struct pci_dev *pdev)
13953 {
13954         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13955         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13956         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13957
13958         switch (phba->pci_dev_grp) {
13959         case LPFC_PCI_DEV_LP:
13960                 rc = lpfc_io_slot_reset_s3(pdev);
13961                 break;
13962         case LPFC_PCI_DEV_OC:
13963                 rc = lpfc_io_slot_reset_s4(pdev);
13964                 break;
13965         default:
13966                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13967                                 "1428 Invalid PCI device group: 0x%x\n",
13968                                 phba->pci_dev_grp);
13969                 break;
13970         }
13971         return rc;
13972 }
13973
13974 /**
13975  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13976  * @pdev: pointer to PCI device
13977  *
13978  * This routine is registered to the PCI subsystem for error handling. It
13979  * is called when kernel error recovery tells the lpfc driver that it is
13980  * OK to resume normal PCI operation after PCI bus error recovery. When
13981  * this routine is invoked, it dispatches the action to the proper SLI-3
13982  * or SLI-4 device io_resume routine, which will resume the device operation.
13983  **/
13984 static void
13985 lpfc_io_resume(struct pci_dev *pdev)
13986 {
13987         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13988         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13989
13990         switch (phba->pci_dev_grp) {
13991         case LPFC_PCI_DEV_LP:
13992                 lpfc_io_resume_s3(pdev);
13993                 break;
13994         case LPFC_PCI_DEV_OC:
13995                 lpfc_io_resume_s4(pdev);
13996                 break;
13997         default:
13998                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13999                                 "1429 Invalid PCI device group: 0x%x\n",
14000                                 phba->pci_dev_grp);
14001                 break;
14002         }
14003         return;
14004 }
14005
14006 /**
14007  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
14008  * @phba: pointer to lpfc hba data structure.
14009  *
14010  * This routine checks to see if OAS is supported for this adapter. If
14011  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
14012  * the enable oas flag is cleared and the pool created for OAS device data
14013  * is destroyed.
14014  *
14015  **/
14016 static void
14017 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
14018 {
14019
14020         if (!phba->cfg_EnableXLane)
14021                 return;
14022
14023         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
14024                 phba->cfg_fof = 1;
14025         } else {
14026                 phba->cfg_fof = 0;
14027                 mempool_destroy(phba->device_data_mem_pool);
14028                 phba->device_data_mem_pool = NULL;
14029         }
14030
14031         return;
14032 }
14033
14034 /**
14035  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
14036  * @phba: pointer to lpfc hba data structure.
14037  *
14038  * This routine checks to see if RAS is supported by the adapter. Check the
14039  * function through which RAS support enablement is to be done.
14040  **/
14041 void
14042 lpfc_sli4_ras_init(struct lpfc_hba *phba)
14043 {
14044         switch (phba->pcidev->device) {
14045         case PCI_DEVICE_ID_LANCER_G6_FC:
14046         case PCI_DEVICE_ID_LANCER_G7_FC:
14047                 phba->ras_fwlog.ras_hwsupport = true;
14048                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
14049                     phba->cfg_ras_fwlog_buffsize)
14050                         phba->ras_fwlog.ras_enabled = true;
14051                 else
14052                         phba->ras_fwlog.ras_enabled = false;
14053                 break;
14054         default:
14055                 phba->ras_fwlog.ras_hwsupport = false;
14056         }
14057 }
14058
14059
14060 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
14061
14062 static const struct pci_error_handlers lpfc_err_handler = {
14063         .error_detected = lpfc_io_error_detected,
14064         .slot_reset = lpfc_io_slot_reset,
14065         .resume = lpfc_io_resume,
14066 };
14067
14068 static struct pci_driver lpfc_driver = {
14069         .name           = LPFC_DRIVER_NAME,
14070         .id_table       = lpfc_id_table,
14071         .probe          = lpfc_pci_probe_one,
14072         .remove         = lpfc_pci_remove_one,
14073         .shutdown       = lpfc_pci_remove_one,
14074         .suspend        = lpfc_pci_suspend_one,
14075         .resume         = lpfc_pci_resume_one,
14076         .err_handler    = &lpfc_err_handler,
14077 };
14078
14079 static const struct file_operations lpfc_mgmt_fop = {
14080         .owner = THIS_MODULE,
14081 };
14082
14083 static struct miscdevice lpfc_mgmt_dev = {
14084         .minor = MISC_DYNAMIC_MINOR,
14085         .name = "lpfcmgmt",
14086         .fops = &lpfc_mgmt_fop,
14087 };
14088
14089 /**
14090  * lpfc_init - lpfc module initialization routine
14091  *
14092  * This routine is to be invoked when the lpfc module is loaded into the
14093  * kernel. The special kernel macro module_init() is used to indicate the
14094  * role of this routine to the kernel as lpfc module entry point.
14095  *
14096  * Return codes
14097  *   0 - successful
14098  *   -ENOMEM - FC attach transport failed
14099  *   all others - failed
14100  */
14101 static int __init
14102 lpfc_init(void)
14103 {
14104         int error = 0;
14105
14106         pr_info(LPFC_MODULE_DESC "\n");
14107         pr_info(LPFC_COPYRIGHT "\n");
14108
14109         error = misc_register(&lpfc_mgmt_dev);
14110         if (error)
14111                 printk(KERN_ERR "Could not register lpfcmgmt device, "
14112                         "misc_register returned with status %d", error);
14113
14114         error = -ENOMEM;
14115         lpfc_transport_functions.vport_create = lpfc_vport_create;
14116         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
14117         lpfc_transport_template =
14118                                 fc_attach_transport(&lpfc_transport_functions);
14119         if (lpfc_transport_template == NULL)
14120                 goto unregister;
14121         lpfc_vport_transport_template =
14122                 fc_attach_transport(&lpfc_vport_transport_functions);
14123         if (lpfc_vport_transport_template == NULL) {
14124                 fc_release_transport(lpfc_transport_template);
14125                 goto unregister;
14126         }
14127         lpfc_nvme_cmd_template();
14128         lpfc_nvmet_cmd_template();
14129
14130         /* Initialize in case vector mapping is needed */
14131         lpfc_present_cpu = num_present_cpus();
14132
14133         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
14134                                         "lpfc/sli4:online",
14135                                         lpfc_cpu_online, lpfc_cpu_offline);
14136         if (error < 0)
14137                 goto cpuhp_failure;
14138         lpfc_cpuhp_state = error;
14139
14140         error = pci_register_driver(&lpfc_driver);
14141         if (error)
14142                 goto unwind;
14143
14144         return error;
14145
14146 unwind:
14147         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14148 cpuhp_failure:
14149         fc_release_transport(lpfc_transport_template);
14150         fc_release_transport(lpfc_vport_transport_template);
14151 unregister:
14152         misc_deregister(&lpfc_mgmt_dev);
14153
14154         return error;
14155 }
14156
14157 void lpfc_dmp_dbg(struct lpfc_hba *phba)
14158 {
14159         unsigned int start_idx;
14160         unsigned int dbg_cnt;
14161         unsigned int temp_idx;
14162         int i;
14163         int j = 0;
14164         unsigned long rem_nsec;
14165
14166         if (phba->cfg_log_verbose)
14167                 return;
14168
14169         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
14170                 return;
14171
14172         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
14173         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
14174         temp_idx = start_idx;
14175         if (dbg_cnt >= DBG_LOG_SZ) {
14176                 dbg_cnt = DBG_LOG_SZ;
14177                 temp_idx -= 1;
14178         } else {
14179                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
14180                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
14181                 } else {
14182                         if (start_idx < dbg_cnt)
14183                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
14184                         else
14185                                 start_idx -= dbg_cnt;
14186                 }
14187         }
14188         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
14189                  start_idx, temp_idx, dbg_cnt);
14190
14191         for (i = 0; i < dbg_cnt; i++) {
14192                 if ((start_idx + i) < DBG_LOG_SZ)
14193                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
14194                 else
14195                         temp_idx = j++;
14196                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
14197                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
14198                          temp_idx,
14199                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
14200                          rem_nsec / 1000,
14201                          phba->dbg_log[temp_idx].log);
14202         }
14203         atomic_set(&phba->dbg_log_cnt, 0);
14204         atomic_set(&phba->dbg_log_dmping, 0);
14205 }
14206
14207 __printf(2, 3)
14208 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
14209 {
14210         unsigned int idx;
14211         va_list args;
14212         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
14213         struct va_format vaf;
14214
14215
14216         va_start(args, fmt);
14217         if (unlikely(dbg_dmping)) {
14218                 vaf.fmt = fmt;
14219                 vaf.va = &args;
14220                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
14221                 va_end(args);
14222                 return;
14223         }
14224         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
14225                 DBG_LOG_SZ;
14226
14227         atomic_inc(&phba->dbg_log_cnt);
14228
14229         vscnprintf(phba->dbg_log[idx].log,
14230                    sizeof(phba->dbg_log[idx].log), fmt, args);
14231         va_end(args);
14232
14233         phba->dbg_log[idx].t_ns = local_clock();
14234 }
14235
14236 /**
14237  * lpfc_exit - lpfc module removal routine
14238  *
14239  * This routine is invoked when the lpfc module is removed from the kernel.
14240  * The special kernel macro module_exit() is used to indicate the role of
14241  * this routine to the kernel as lpfc module exit point.
14242  */
14243 static void __exit
14244 lpfc_exit(void)
14245 {
14246         misc_deregister(&lpfc_mgmt_dev);
14247         pci_unregister_driver(&lpfc_driver);
14248         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14249         fc_release_transport(lpfc_transport_template);
14250         fc_release_transport(lpfc_vport_transport_template);
14251         idr_destroy(&lpfc_hba_index);
14252 }
14253
14254 module_init(lpfc_init);
14255 module_exit(lpfc_exit);
14256 MODULE_LICENSE("GPL");
14257 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14258 MODULE_AUTHOR("Broadcom");
14259 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);