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) 2017-2018 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
  43 #include <scsi/scsi.h>
  44 #include <scsi/scsi_device.h>
  45 #include <scsi/scsi_host.h>
  46 #include <scsi/scsi_transport_fc.h>
  47 #include <scsi/scsi_tcq.h>
  48 #include <scsi/fc/fc_fs.h>
  49
  50 #include <linux/nvme-fc-driver.h>
  51
  52 #include "lpfc_hw4.h"
  53 #include "lpfc_hw.h"
  54 #include "lpfc_sli.h"
  55 #include "lpfc_sli4.h"
  56 #include "lpfc_nl.h"
  57 #include "lpfc_disc.h"
  58 #include "lpfc.h"
  59 #include "lpfc_scsi.h"
  60 #include "lpfc_nvme.h"
  61 #include "lpfc_nvmet.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 char *_dump_buf_data;
  69 unsigned long _dump_buf_data_order;
  70 char *_dump_buf_dif;
  71 unsigned long _dump_buf_dif_order;
  72 spinlock_t _dump_buf_lock;
  73
  74 /* Used when mapping IRQ vectors in a driver centric manner */
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96 static uint16_t lpfc_find_eq_handle(struct lpfc_hba *, uint16_t);
  97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  98
  99 static struct scsi_transport_template *lpfc_transport_template = NULL;
 100 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 101 static DEFINE_IDR(lpfc_hba_index);
 102 #define LPFC_NVMET_BUF_POST 254
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 259                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 260                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 261                                       lpfc_vpd_data + offset,
 262                                       mb->un.varDmp.word_cnt);
 263                 offset += mb->un.varDmp.word_cnt;
 264         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 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_INIT,
 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_INIT,
 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         i = (mb->un.varRdConfig.max_xri + 1);
 515         if (phba->cfg_hba_queue_depth > i) {
 516                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 517                                 "3359 HBA queue depth changed from %d to %d\n",
 518                                 phba->cfg_hba_queue_depth, i);
 519                 phba->cfg_hba_queue_depth = i;
 520         }
 521
 522         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 523         i = (mb->un.varRdConfig.max_xri >> 3);
 524         if (phba->pport->cfg_lun_queue_depth > i) {
 525                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 526                                 "3360 LUN queue depth changed from %d to %d\n",
 527                                 phba->pport->cfg_lun_queue_depth, i);
 528                 phba->pport->cfg_lun_queue_depth = i;
 529         }
 530
 531         phba->lmt = mb->un.varRdConfig.lmt;
 532
 533         /* Get the default values for Model Name and Description */
 534         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 535
 536         phba->link_state = LPFC_LINK_DOWN;
 537
 538         /* Only process IOCBs on ELS ring till hba_state is READY */
 539         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 542                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 543
 544         /* Post receive buffers for desired rings */
 545         if (phba->sli_rev != 3)
 546                 lpfc_post_rcv_buf(phba);
 547
 548         /*
 549          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 550          */
 551         if (phba->intr_type == MSIX) {
 552                 rc = lpfc_config_msi(phba, pmb);
 553                 if (rc) {
 554                         mempool_free(pmb, phba->mbox_mem_pool);
 555                         return -EIO;
 556                 }
 557                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 558                 if (rc != MBX_SUCCESS) {
 559                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 560                                         "0352 Config MSI mailbox command "
 561                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 562                                         pmb->u.mb.mbxCommand,
 563                                         pmb->u.mb.mbxStatus);
 564                         mempool_free(pmb, phba->mbox_mem_pool);
 565                         return -EIO;
 566                 }
 567         }
 568
 569         spin_lock_irq(&phba->hbalock);
 570         /* Initialize ERATT handling flag */
 571         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 572
 573         /* Enable appropriate host interrupts */
 574         if (lpfc_readl(phba->HCregaddr, &status)) {
 575                 spin_unlock_irq(&phba->hbalock);
 576                 return -EIO;
 577         }
 578         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 579         if (psli->num_rings > 0)
 580                 status |= HC_R0INT_ENA;
 581         if (psli->num_rings > 1)
 582                 status |= HC_R1INT_ENA;
 583         if (psli->num_rings > 2)
 584                 status |= HC_R2INT_ENA;
 585         if (psli->num_rings > 3)
 586                 status |= HC_R3INT_ENA;
 587
 588         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 589             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 590                 status &= ~(HC_R0INT_ENA);
 591
 592         writel(status, phba->HCregaddr);
 593         readl(phba->HCregaddr); /* flush */
 594         spin_unlock_irq(&phba->hbalock);
 595
 596         /* Set up ring-0 (ELS) timer */
 597         timeout = phba->fc_ratov * 2;
 598         mod_timer(&vport->els_tmofunc,
 599                   jiffies + msecs_to_jiffies(1000 * timeout));
 600         /* Set up heart beat (HB) timer */
 601         mod_timer(&phba->hb_tmofunc,
 602                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 603         phba->hb_outstanding = 0;
 604         phba->last_completion_time = jiffies;
 605         /* Set up error attention (ERATT) polling timer */
 606         mod_timer(&phba->eratt_poll,
 607                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 608
 609         if (phba->hba_flag & LINK_DISABLED) {
 610                 lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2598 Adapter Link is disabled.\n");
 613                 lpfc_down_link(phba, pmb);
 614                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 615                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 616                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 617                         lpfc_printf_log(phba,
 618                         KERN_ERR, LOG_INIT,
 619                         "2599 Adapter failed to issue DOWN_LINK"
 620                         " mbox command rc 0x%x\n", rc);
 621
 622                         mempool_free(pmb, phba->mbox_mem_pool);
 623                         return -EIO;
 624                 }
 625         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 626                 mempool_free(pmb, phba->mbox_mem_pool);
 627                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 628                 if (rc)
 629                         return rc;
 630         }
 631         /* MBOX buffer will be freed in mbox compl */
 632         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 633         if (!pmb) {
 634                 phba->link_state = LPFC_HBA_ERROR;
 635                 return -ENOMEM;
 636         }
 637
 638         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 639         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 640         pmb->vport = phba->pport;
 641         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 642
 643         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 644                 lpfc_printf_log(phba,
 645                                 KERN_ERR,
 646                                 LOG_INIT,
 647                                 "0456 Adapter failed to issue "
 648                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 649                                 rc);
 650                 mempool_free(pmb, phba->mbox_mem_pool);
 651         }
 652
 653         /* Get Option rom version */
 654         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 655         if (!pmb) {
 656                 phba->link_state = LPFC_HBA_ERROR;
 657                 return -ENOMEM;
 658         }
 659
 660         lpfc_dump_wakeup_param(phba, pmb);
 661         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 662         pmb->vport = phba->pport;
 663         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 664
 665         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 667                                 "to get Option ROM version status x%x\n", rc);
 668                 mempool_free(pmb, phba->mbox_mem_pool);
 669         }
 670
 671         return 0;
 672 }
 673
 674 /**
 675  * lpfc_hba_init_link - Initialize the FC link
 676  * @phba: pointer to lpfc hba data structure.
 677  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 678  *
 679  * This routine will issue the INIT_LINK mailbox command call.
 680  * It is available to other drivers through the lpfc_hba data
 681  * structure for use as a delayed link up mechanism with the
 682  * module parameter lpfc_suppress_link_up.
 683  *
 684  * Return code
 685  *              0 - success
 686  *              Any other value - error
 687  **/
 688 static int
 689 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 690 {
 691         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 692 }
 693
 694 /**
 695  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 696  * @phba: pointer to lpfc hba data structure.
 697  * @fc_topology: desired fc topology.
 698  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 699  *
 700  * This routine will issue the INIT_LINK mailbox command call.
 701  * It is available to other drivers through the lpfc_hba data
 702  * structure for use as a delayed link up mechanism with the
 703  * module parameter lpfc_suppress_link_up.
 704  *
 705  * Return code
 706  *              0 - success
 707  *              Any other value - error
 708  **/
 709 int
 710 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 711                                uint32_t flag)
 712 {
 713         struct lpfc_vport *vport = phba->pport;
 714         LPFC_MBOXQ_t *pmb;
 715         MAILBOX_t *mb;
 716         int rc;
 717
 718         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 719         if (!pmb) {
 720                 phba->link_state = LPFC_HBA_ERROR;
 721                 return -ENOMEM;
 722         }
 723         mb = &pmb->u.mb;
 724         pmb->vport = vport;
 725
 726         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 728              !(phba->lmt & LMT_1Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 730              !(phba->lmt & LMT_2Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 732              !(phba->lmt & LMT_4Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 734              !(phba->lmt & LMT_8Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 736              !(phba->lmt & LMT_10Gb)) ||
 737             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 738              !(phba->lmt & LMT_16Gb)) ||
 739             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 740              !(phba->lmt & LMT_32Gb)) ||
 741             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 742              !(phba->lmt & LMT_64Gb))) {
 743                 /* Reset link speed to auto */
 744                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 745                         "1302 Invalid speed for this board:%d "
 746                         "Reset link speed to auto.\n",
 747                         phba->cfg_link_speed);
 748                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 749         }
 750         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 751         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 752         if (phba->sli_rev < LPFC_SLI_REV4)
 753                 lpfc_set_loopback_flag(phba);
 754         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 755         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 757                         "0498 Adapter failed to init, mbxCmd x%x "
 758                         "INIT_LINK, mbxStatus x%x\n",
 759                         mb->mbxCommand, mb->mbxStatus);
 760                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 761                         /* Clear all interrupt enable conditions */
 762                         writel(0, phba->HCregaddr);
 763                         readl(phba->HCregaddr); /* flush */
 764                         /* Clear all pending interrupts */
 765                         writel(0xffffffff, phba->HAregaddr);
 766                         readl(phba->HAregaddr); /* flush */
 767                 }
 768                 phba->link_state = LPFC_HBA_ERROR;
 769                 if (rc != MBX_BUSY || flag == MBX_POLL)
 770                         mempool_free(pmb, phba->mbox_mem_pool);
 771                 return -EIO;
 772         }
 773         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 774         if (flag == MBX_POLL)
 775                 mempool_free(pmb, phba->mbox_mem_pool);
 776
 777         return 0;
 778 }
 779
 780 /**
 781  * lpfc_hba_down_link - this routine downs the FC link
 782  * @phba: pointer to lpfc hba data structure.
 783  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 784  *
 785  * This routine will issue the DOWN_LINK mailbox command call.
 786  * It is available to other drivers through the lpfc_hba data
 787  * structure for use to stop the link.
 788  *
 789  * Return code
 790  *              0 - success
 791  *              Any other value - error
 792  **/
 793 static int
 794 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 795 {
 796         LPFC_MBOXQ_t *pmb;
 797         int rc;
 798
 799         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 800         if (!pmb) {
 801                 phba->link_state = LPFC_HBA_ERROR;
 802                 return -ENOMEM;
 803         }
 804
 805         lpfc_printf_log(phba,
 806                 KERN_ERR, LOG_INIT,
 807                 "0491 Adapter Link is disabled.\n");
 808         lpfc_down_link(phba, pmb);
 809         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 810         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 811         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 812                 lpfc_printf_log(phba,
 813                 KERN_ERR, LOG_INIT,
 814                 "2522 Adapter failed to issue DOWN_LINK"
 815                 " mbox command rc 0x%x\n", rc);
 816
 817                 mempool_free(pmb, phba->mbox_mem_pool);
 818                 return -EIO;
 819         }
 820         if (flag == MBX_POLL)
 821                 mempool_free(pmb, phba->mbox_mem_pool);
 822
 823         return 0;
 824 }
 825
 826 /**
 827  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will do LPFC uninitialization before the HBA is reset when
 831  * bringing down the SLI Layer.
 832  *
 833  * Return codes
 834  *   0 - success.
 835  *   Any other value - error.
 836  **/
 837 int
 838 lpfc_hba_down_prep(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_vport **vports;
 841         int i;
 842
 843         if (phba->sli_rev <= LPFC_SLI_REV3) {
 844                 /* Disable interrupts */
 845                 writel(0, phba->HCregaddr);
 846                 readl(phba->HCregaddr); /* flush */
 847         }
 848
 849         if (phba->pport->load_flag & FC_UNLOADING)
 850                 lpfc_cleanup_discovery_resources(phba->pport);
 851         else {
 852                 vports = lpfc_create_vport_work_array(phba);
 853                 if (vports != NULL)
 854                         for (i = 0; i <= phba->max_vports &&
 855                                 vports[i] != NULL; i++)
 856                                 lpfc_cleanup_discovery_resources(vports[i]);
 857                 lpfc_destroy_vport_work_array(phba, vports);
 858         }
 859         return 0;
 860 }
 861
 862 /**
 863  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 864  * rspiocb which got deferred
 865  *
 866  * @phba: pointer to lpfc HBA data structure.
 867  *
 868  * This routine will cleanup completed slow path events after HBA is reset
 869  * when bringing down the SLI Layer.
 870  *
 871  *
 872  * Return codes
 873  *   void.
 874  **/
 875 static void
 876 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 877 {
 878         struct lpfc_iocbq *rspiocbq;
 879         struct hbq_dmabuf *dmabuf;
 880         struct lpfc_cq_event *cq_event;
 881
 882         spin_lock_irq(&phba->hbalock);
 883         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 884         spin_unlock_irq(&phba->hbalock);
 885
 886         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 887                 /* Get the response iocb from the head of work queue */
 888                 spin_lock_irq(&phba->hbalock);
 889                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 890                                  cq_event, struct lpfc_cq_event, list);
 891                 spin_unlock_irq(&phba->hbalock);
 892
 893                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 894                 case CQE_CODE_COMPL_WQE:
 895                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 896                                                  cq_event);
 897                         lpfc_sli_release_iocbq(phba, rspiocbq);
 898                         break;
 899                 case CQE_CODE_RECEIVE:
 900                 case CQE_CODE_RECEIVE_V1:
 901                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 902                                               cq_event);
 903                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 904                 }
 905         }
 906 }
 907
 908 /**
 909  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 910  * @phba: pointer to lpfc HBA data structure.
 911  *
 912  * This routine will cleanup posted ELS buffers after the HBA is reset
 913  * when bringing down the SLI Layer.
 914  *
 915  *
 916  * Return codes
 917  *   void.
 918  **/
 919 static void
 920 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 921 {
 922         struct lpfc_sli *psli = &phba->sli;
 923         struct lpfc_sli_ring *pring;
 924         struct lpfc_dmabuf *mp, *next_mp;
 925         LIST_HEAD(buflist);
 926         int count;
 927
 928         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 929                 lpfc_sli_hbqbuf_free_all(phba);
 930         else {
 931                 /* Cleanup preposted buffers on the ELS ring */
 932                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 933                 spin_lock_irq(&phba->hbalock);
 934                 list_splice_init(&pring->postbufq, &buflist);
 935                 spin_unlock_irq(&phba->hbalock);
 936
 937                 count = 0;
 938                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 939                         list_del(&mp->list);
 940                         count++;
 941                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 942                         kfree(mp);
 943                 }
 944
 945                 spin_lock_irq(&phba->hbalock);
 946                 pring->postbufq_cnt -= count;
 947                 spin_unlock_irq(&phba->hbalock);
 948         }
 949 }
 950
 951 /**
 952  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 953  * @phba: pointer to lpfc HBA data structure.
 954  *
 955  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 956  * down the SLI Layer.
 957  *
 958  * Return codes
 959  *   void
 960  **/
 961 static void
 962 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 963 {
 964         struct lpfc_sli *psli = &phba->sli;
 965         struct lpfc_queue *qp = NULL;
 966         struct lpfc_sli_ring *pring;
 967         LIST_HEAD(completions);
 968         int i;
 969         struct lpfc_iocbq *piocb, *next_iocb;
 970
 971         if (phba->sli_rev != LPFC_SLI_REV4) {
 972                 for (i = 0; i < psli->num_rings; i++) {
 973                         pring = &psli->sli3_ring[i];
 974                         spin_lock_irq(&phba->hbalock);
 975                         /* At this point in time the HBA is either reset or DOA
 976                          * Nothing should be on txcmplq as it will
 977                          * NEVER complete.
 978                          */
 979                         list_splice_init(&pring->txcmplq, &completions);
 980                         pring->txcmplq_cnt = 0;
 981                         spin_unlock_irq(&phba->hbalock);
 982
 983                         lpfc_sli_abort_iocb_ring(phba, pring);
 984                 }
 985                 /* Cancel all the IOCBs from the completions list */
 986                 lpfc_sli_cancel_iocbs(phba, &completions,
 987                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 988                 return;
 989         }
 990         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 991                 pring = qp->pring;
 992                 if (!pring)
 993                         continue;
 994                 spin_lock_irq(&pring->ring_lock);
 995                 list_for_each_entry_safe(piocb, next_iocb,
 996                                          &pring->txcmplq, list)
 997                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 998                 list_splice_init(&pring->txcmplq, &completions);
 999                 pring->txcmplq_cnt = 0;
1000                 spin_unlock_irq(&pring->ring_lock);
1001                 lpfc_sli_abort_iocb_ring(phba, pring);
1002         }
1003         /* Cancel all the IOCBs from the completions list */
1004         lpfc_sli_cancel_iocbs(phba, &completions,
1005                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1006 }
1007
1008 /**
1009  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1010         int i;
1011  * @phba: pointer to lpfc HBA data structure.
1012  *
1013  * This routine will do uninitialization after the HBA is reset when bring
1014  * down the SLI Layer.
1015  *
1016  * Return codes
1017  *   0 - success.
1018  *   Any other value - error.
1019  **/
1020 static int
1021 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1022 {
1023         lpfc_hba_free_post_buf(phba);
1024         lpfc_hba_clean_txcmplq(phba);
1025         return 0;
1026 }
1027
1028 /**
1029  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1030  * @phba: pointer to lpfc HBA data structure.
1031  *
1032  * This routine will do uninitialization after the HBA is reset when bring
1033  * down the SLI Layer.
1034  *
1035  * Return codes
1036  *   0 - success.
1037  *   Any other value - error.
1038  **/
1039 static int
1040 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1041 {
1042         struct lpfc_io_buf *psb, *psb_next;
1043         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1044         struct lpfc_sli4_hdw_queue *qp;
1045         LIST_HEAD(aborts);
1046         LIST_HEAD(nvme_aborts);
1047         LIST_HEAD(nvmet_aborts);
1048         struct lpfc_sglq *sglq_entry = NULL;
1049         int cnt, idx;
1050
1051
1052         lpfc_sli_hbqbuf_free_all(phba);
1053         lpfc_hba_clean_txcmplq(phba);
1054
1055         /* At this point in time the HBA is either reset or DOA. Either
1056          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1057          * on the lpfc_els_sgl_list so that it can either be freed if the
1058          * driver is unloading or reposted if the driver is restarting
1059          * the port.
1060          */
1061         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1062                                         /* scsl_buf_list */
1063         /* sgl_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock(&phba->sli4_hba.sgl_list_lock);
1067         list_for_each_entry(sglq_entry,
1068                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1069                 sglq_entry->state = SGL_FREED;
1070
1071         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1072                         &phba->sli4_hba.lpfc_els_sgl_list);
1073
1074
1075         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1076
1077         /* abts_xxxx_buf_list_lock required because worker thread uses this
1078          * list.
1079          */
1080         cnt = 0;
1081         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1082                 qp = &phba->sli4_hba.hdwq[idx];
1083
1084                 spin_lock(&qp->abts_scsi_buf_list_lock);
1085                 list_splice_init(&qp->lpfc_abts_scsi_buf_list,
1086                                  &aborts);
1087
1088                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1089                         psb->pCmd = NULL;
1090                         psb->status = IOSTAT_SUCCESS;
1091                         cnt++;
1092                 }
1093                 spin_lock(&qp->io_buf_list_put_lock);
1094                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1095                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1096                 qp->abts_scsi_io_bufs = 0;
1097                 spin_unlock(&qp->io_buf_list_put_lock);
1098                 spin_unlock(&qp->abts_scsi_buf_list_lock);
1099
1100                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1101                         spin_lock(&qp->abts_nvme_buf_list_lock);
1102                         list_splice_init(&qp->lpfc_abts_nvme_buf_list,
1103                                          &nvme_aborts);
1104                         list_for_each_entry_safe(psb, psb_next, &nvme_aborts,
1105                                                  list) {
1106                                 psb->pCmd = NULL;
1107                                 psb->status = IOSTAT_SUCCESS;
1108                                 cnt++;
1109                         }
1110                         spin_lock(&qp->io_buf_list_put_lock);
1111                         qp->put_io_bufs += qp->abts_nvme_io_bufs;
1112                         qp->abts_nvme_io_bufs = 0;
1113                         list_splice_init(&nvme_aborts,
1114                                          &qp->lpfc_io_buf_list_put);
1115                         spin_unlock(&qp->io_buf_list_put_lock);
1116                         spin_unlock(&qp->abts_nvme_buf_list_lock);
1117
1118                 }
1119         }
1120
1121         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1122                 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1123                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1124                                  &nvmet_aborts);
1125                 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1126                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1127                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1128                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1129                 }
1130         }
1131
1132         spin_unlock_irq(&phba->hbalock);
1133         lpfc_sli4_free_sp_events(phba);
1134         return cnt;
1135 }
1136
1137 /**
1138  * lpfc_hba_down_post - Wrapper func for hba down post routine
1139  * @phba: pointer to lpfc HBA data structure.
1140  *
1141  * This routine wraps the actual SLI3 or SLI4 routine for performing
1142  * uninitialization after the HBA is reset when bring down the SLI Layer.
1143  *
1144  * Return codes
1145  *   0 - success.
1146  *   Any other value - error.
1147  **/
1148 int
1149 lpfc_hba_down_post(struct lpfc_hba *phba)
1150 {
1151         return (*phba->lpfc_hba_down_post)(phba);
1152 }
1153
1154 /**
1155  * lpfc_hb_timeout - The HBA-timer timeout handler
1156  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1157  *
1158  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1159  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1160  * work-port-events bitmap and the worker thread is notified. This timeout
1161  * event will be used by the worker thread to invoke the actual timeout
1162  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1163  * be performed in the timeout handler and the HBA timeout event bit shall
1164  * be cleared by the worker thread after it has taken the event bitmap out.
1165  **/
1166 static void
1167 lpfc_hb_timeout(struct timer_list *t)
1168 {
1169         struct lpfc_hba *phba;
1170         uint32_t tmo_posted;
1171         unsigned long iflag;
1172
1173         phba = from_timer(phba, t, hb_tmofunc);
1174
1175         /* Check for heart beat timeout conditions */
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1178         if (!tmo_posted)
1179                 phba->pport->work_port_events |= WORKER_HB_TMO;
1180         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1181
1182         /* Tell the worker thread there is work to do */
1183         if (!tmo_posted)
1184                 lpfc_worker_wake_up(phba);
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1190  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1191  *
1192  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1193  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1194  * work-port-events bitmap and the worker thread is notified. This timeout
1195  * event will be used by the worker thread to invoke the actual timeout
1196  * handler routine, lpfc_rrq_handler. Any periodical operations will
1197  * be performed in the timeout handler and the RRQ timeout event bit shall
1198  * be cleared by the worker thread after it has taken the event bitmap out.
1199  **/
1200 static void
1201 lpfc_rrq_timeout(struct timer_list *t)
1202 {
1203         struct lpfc_hba *phba;
1204         unsigned long iflag;
1205
1206         phba = from_timer(phba, t, rrq_tmr);
1207         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1208         if (!(phba->pport->load_flag & FC_UNLOADING))
1209                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1210         else
1211                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1212         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1213
1214         if (!(phba->pport->load_flag & FC_UNLOADING))
1215                 lpfc_worker_wake_up(phba);
1216 }
1217
1218 /**
1219  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1220  * @phba: pointer to lpfc hba data structure.
1221  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1222  *
1223  * This is the callback function to the lpfc heart-beat mailbox command.
1224  * If configured, the lpfc driver issues the heart-beat mailbox command to
1225  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1226  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1227  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1228  * heart-beat outstanding state. Once the mailbox command comes back and
1229  * no error conditions detected, the heart-beat mailbox command timer is
1230  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1231  * state is cleared for the next heart-beat. If the timer expired with the
1232  * heart-beat outstanding state set, the driver will put the HBA offline.
1233  **/
1234 static void
1235 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1236 {
1237         unsigned long drvr_flag;
1238
1239         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1240         phba->hb_outstanding = 0;
1241         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1242
1243         /* Check and reset heart-beat timer is necessary */
1244         mempool_free(pmboxq, phba->mbox_mem_pool);
1245         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1246                 !(phba->link_state == LPFC_HBA_ERROR) &&
1247                 !(phba->pport->load_flag & FC_UNLOADING))
1248                 mod_timer(&phba->hb_tmofunc,
1249                           jiffies +
1250                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1251         return;
1252 }
1253
1254 static void
1255 lpfc_hb_eq_delay_work(struct work_struct *work)
1256 {
1257         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1258                                              struct lpfc_hba, eq_delay_work);
1259         struct lpfc_eq_intr_info *eqi, *eqi_new;
1260         struct lpfc_queue *eq, *eq_next;
1261         unsigned char *eqcnt = NULL;
1262         uint32_t usdelay;
1263         int i;
1264
1265         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1266                 return;
1267
1268         if (phba->link_state == LPFC_HBA_ERROR ||
1269             phba->pport->fc_flag & FC_OFFLINE_MODE)
1270                 goto requeue;
1271
1272         eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
1273                         GFP_KERNEL);
1274         if (!eqcnt)
1275                 goto requeue;
1276
1277         for (i = 0; i < phba->cfg_irq_chann; i++) {
1278                 eq = phba->sli4_hba.hdwq[i].hba_eq;
1279                 if (eq && eqcnt[eq->last_cpu] < 2)
1280                         eqcnt[eq->last_cpu]++;
1281                 continue;
1282         }
1283
1284         for_each_present_cpu(i) {
1285                 if (phba->cfg_irq_chann > 1 && eqcnt[i] < 2)
1286                         continue;
1287
1288                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1289
1290                 usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
1291                            LPFC_EQ_DELAY_STEP;
1292                 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1293                         usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1294
1295                 eqi->icnt = 0;
1296
1297                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1298                         if (eq->last_cpu != i) {
1299                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1300                                                       eq->last_cpu);
1301                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1302                                 continue;
1303                         }
1304                         if (usdelay != eq->q_mode)
1305                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1306                                                          usdelay);
1307                 }
1308         }
1309
1310         kfree(eqcnt);
1311
1312 requeue:
1313         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1314                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1315 }
1316
1317 /**
1318  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1319  * @phba: pointer to lpfc hba data structure.
1320  *
1321  * For each heartbeat, this routine does some heuristic methods to adjust
1322  * XRI distribution. The goal is to fully utilize free XRIs.
1323  **/
1324 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1325 {
1326         u32 i;
1327         u32 hwq_count;
1328
1329         hwq_count = phba->cfg_hdw_queue;
1330         for (i = 0; i < hwq_count; i++) {
1331                 /* Adjust XRIs in private pool */
1332                 lpfc_adjust_pvt_pool_count(phba, i);
1333
1334                 /* Adjust high watermark */
1335                 lpfc_adjust_high_watermark(phba, i);
1336
1337 #ifdef LPFC_MXP_STAT
1338                 /* Snapshot pbl, pvt and busy count */
1339                 lpfc_snapshot_mxp(phba, i);
1340 #endif
1341         }
1342 }
1343
1344 /**
1345  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1346  * @phba: pointer to lpfc hba data structure.
1347  *
1348  * This is the actual HBA-timer timeout handler to be invoked by the worker
1349  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1350  * handler performs any periodic operations needed for the device. If such
1351  * periodic event has already been attended to either in the interrupt handler
1352  * or by processing slow-ring or fast-ring events within the HBA-timer
1353  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1354  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1355  * is configured and there is no heart-beat mailbox command outstanding, a
1356  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1357  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1358  * to offline.
1359  **/
1360 void
1361 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1362 {
1363         struct lpfc_vport **vports;
1364         LPFC_MBOXQ_t *pmboxq;
1365         struct lpfc_dmabuf *buf_ptr;
1366         int retval, i;
1367         struct lpfc_sli *psli = &phba->sli;
1368         LIST_HEAD(completions);
1369
1370         if (phba->cfg_xri_rebalancing) {
1371                 /* Multi-XRI pools handler */
1372                 lpfc_hb_mxp_handler(phba);
1373         }
1374
1375         vports = lpfc_create_vport_work_array(phba);
1376         if (vports != NULL)
1377                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1378                         lpfc_rcv_seq_check_edtov(vports[i]);
1379                         lpfc_fdmi_num_disc_check(vports[i]);
1380                 }
1381         lpfc_destroy_vport_work_array(phba, vports);
1382
1383         if ((phba->link_state == LPFC_HBA_ERROR) ||
1384                 (phba->pport->load_flag & FC_UNLOADING) ||
1385                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1386                 return;
1387
1388         spin_lock_irq(&phba->pport->work_port_lock);
1389
1390         if (time_after(phba->last_completion_time +
1391                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1392                         jiffies)) {
1393                 spin_unlock_irq(&phba->pport->work_port_lock);
1394                 if (!phba->hb_outstanding)
1395                         mod_timer(&phba->hb_tmofunc,
1396                                 jiffies +
1397                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1398                 else
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1402                 return;
1403         }
1404         spin_unlock_irq(&phba->pport->work_port_lock);
1405
1406         if (phba->elsbuf_cnt &&
1407                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1408                 spin_lock_irq(&phba->hbalock);
1409                 list_splice_init(&phba->elsbuf, &completions);
1410                 phba->elsbuf_cnt = 0;
1411                 phba->elsbuf_prev_cnt = 0;
1412                 spin_unlock_irq(&phba->hbalock);
1413
1414                 while (!list_empty(&completions)) {
1415                         list_remove_head(&completions, buf_ptr,
1416                                 struct lpfc_dmabuf, list);
1417                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1418                         kfree(buf_ptr);
1419                 }
1420         }
1421         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1422
1423         /* If there is no heart beat outstanding, issue a heartbeat command */
1424         if (phba->cfg_enable_hba_heartbeat) {
1425                 if (!phba->hb_outstanding) {
1426                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1427                                 (list_empty(&psli->mboxq))) {
1428                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1429                                                         GFP_KERNEL);
1430                                 if (!pmboxq) {
1431                                         mod_timer(&phba->hb_tmofunc,
1432                                                  jiffies +
1433                                                  msecs_to_jiffies(1000 *
1434                                                  LPFC_HB_MBOX_INTERVAL));
1435                                         return;
1436                                 }
1437
1438                                 lpfc_heart_beat(phba, pmboxq);
1439                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1440                                 pmboxq->vport = phba->pport;
1441                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1442                                                 MBX_NOWAIT);
1443
1444                                 if (retval != MBX_BUSY &&
1445                                         retval != MBX_SUCCESS) {
1446                                         mempool_free(pmboxq,
1447                                                         phba->mbox_mem_pool);
1448                                         mod_timer(&phba->hb_tmofunc,
1449                                                 jiffies +
1450                                                 msecs_to_jiffies(1000 *
1451                                                 LPFC_HB_MBOX_INTERVAL));
1452                                         return;
1453                                 }
1454                                 phba->skipped_hb = 0;
1455                                 phba->hb_outstanding = 1;
1456                         } else if (time_before_eq(phba->last_completion_time,
1457                                         phba->skipped_hb)) {
1458                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1459                                         "2857 Last completion time not "
1460                                         " updated in %d ms\n",
1461                                         jiffies_to_msecs(jiffies
1462                                                  - phba->last_completion_time));
1463                         } else
1464                                 phba->skipped_hb = jiffies;
1465
1466                         mod_timer(&phba->hb_tmofunc,
1467                                  jiffies +
1468                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1469                         return;
1470                 } else {
1471                         /*
1472                         * If heart beat timeout called with hb_outstanding set
1473                         * we need to give the hb mailbox cmd a chance to
1474                         * complete or TMO.
1475                         */
1476                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1477                                         "0459 Adapter heartbeat still out"
1478                                         "standing:last compl time was %d ms.\n",
1479                                         jiffies_to_msecs(jiffies
1480                                                  - phba->last_completion_time));
1481                         mod_timer(&phba->hb_tmofunc,
1482                                 jiffies +
1483                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1484                 }
1485         } else {
1486                         mod_timer(&phba->hb_tmofunc,
1487                                 jiffies +
1488                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1489         }
1490 }
1491
1492 /**
1493  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1494  * @phba: pointer to lpfc hba data structure.
1495  *
1496  * This routine is called to bring the HBA offline when HBA hardware error
1497  * other than Port Error 6 has been detected.
1498  **/
1499 static void
1500 lpfc_offline_eratt(struct lpfc_hba *phba)
1501 {
1502         struct lpfc_sli   *psli = &phba->sli;
1503
1504         spin_lock_irq(&phba->hbalock);
1505         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1506         spin_unlock_irq(&phba->hbalock);
1507         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1508
1509         lpfc_offline(phba);
1510         lpfc_reset_barrier(phba);
1511         spin_lock_irq(&phba->hbalock);
1512         lpfc_sli_brdreset(phba);
1513         spin_unlock_irq(&phba->hbalock);
1514         lpfc_hba_down_post(phba);
1515         lpfc_sli_brdready(phba, HS_MBRDY);
1516         lpfc_unblock_mgmt_io(phba);
1517         phba->link_state = LPFC_HBA_ERROR;
1518         return;
1519 }
1520
1521 /**
1522  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1523  * @phba: pointer to lpfc hba data structure.
1524  *
1525  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1526  * other than Port Error 6 has been detected.
1527  **/
1528 void
1529 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1530 {
1531         spin_lock_irq(&phba->hbalock);
1532         phba->link_state = LPFC_HBA_ERROR;
1533         spin_unlock_irq(&phba->hbalock);
1534
1535         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1536         lpfc_offline(phba);
1537         lpfc_hba_down_post(phba);
1538         lpfc_unblock_mgmt_io(phba);
1539 }
1540
1541 /**
1542  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1543  * @phba: pointer to lpfc hba data structure.
1544  *
1545  * This routine is invoked to handle the deferred HBA hardware error
1546  * conditions. This type of error is indicated by HBA by setting ER1
1547  * and another ER bit in the host status register. The driver will
1548  * wait until the ER1 bit clears before handling the error condition.
1549  **/
1550 static void
1551 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1552 {
1553         uint32_t old_host_status = phba->work_hs;
1554         struct lpfc_sli *psli = &phba->sli;
1555
1556         /* If the pci channel is offline, ignore possible errors,
1557          * since we cannot communicate with the pci card anyway.
1558          */
1559         if (pci_channel_offline(phba->pcidev)) {
1560                 spin_lock_irq(&phba->hbalock);
1561                 phba->hba_flag &= ~DEFER_ERATT;
1562                 spin_unlock_irq(&phba->hbalock);
1563                 return;
1564         }
1565
1566         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1567                 "0479 Deferred Adapter Hardware Error "
1568                 "Data: x%x x%x x%x\n",
1569                 phba->work_hs,
1570                 phba->work_status[0], phba->work_status[1]);
1571
1572         spin_lock_irq(&phba->hbalock);
1573         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1574         spin_unlock_irq(&phba->hbalock);
1575
1576
1577         /*
1578          * Firmware stops when it triggred erratt. That could cause the I/Os
1579          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1580          * SCSI layer retry it after re-establishing link.
1581          */
1582         lpfc_sli_abort_fcp_rings(phba);
1583
1584         /*
1585          * There was a firmware error. Take the hba offline and then
1586          * attempt to restart it.
1587          */
1588         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1589         lpfc_offline(phba);
1590
1591         /* Wait for the ER1 bit to clear.*/
1592         while (phba->work_hs & HS_FFER1) {
1593                 msleep(100);
1594                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1595                         phba->work_hs = UNPLUG_ERR ;
1596                         break;
1597                 }
1598                 /* If driver is unloading let the worker thread continue */
1599                 if (phba->pport->load_flag & FC_UNLOADING) {
1600                         phba->work_hs = 0;
1601                         break;
1602                 }
1603         }
1604
1605         /*
1606          * This is to ptrotect against a race condition in which
1607          * first write to the host attention register clear the
1608          * host status register.
1609          */
1610         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1611                 phba->work_hs = old_host_status & ~HS_FFER1;
1612
1613         spin_lock_irq(&phba->hbalock);
1614         phba->hba_flag &= ~DEFER_ERATT;
1615         spin_unlock_irq(&phba->hbalock);
1616         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1617         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1618 }
1619
1620 static void
1621 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1622 {
1623         struct lpfc_board_event_header board_event;
1624         struct Scsi_Host *shost;
1625
1626         board_event.event_type = FC_REG_BOARD_EVENT;
1627         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1628         shost = lpfc_shost_from_vport(phba->pport);
1629         fc_host_post_vendor_event(shost, fc_get_event_number(),
1630                                   sizeof(board_event),
1631                                   (char *) &board_event,
1632                                   LPFC_NL_VENDOR_ID);
1633 }
1634
1635 /**
1636  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1637  * @phba: pointer to lpfc hba data structure.
1638  *
1639  * This routine is invoked to handle the following HBA hardware error
1640  * conditions:
1641  * 1 - HBA error attention interrupt
1642  * 2 - DMA ring index out of range
1643  * 3 - Mailbox command came back as unknown
1644  **/
1645 static void
1646 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1647 {
1648         struct lpfc_vport *vport = phba->pport;
1649         struct lpfc_sli   *psli = &phba->sli;
1650         uint32_t event_data;
1651         unsigned long temperature;
1652         struct temp_event temp_event_data;
1653         struct Scsi_Host  *shost;
1654
1655         /* If the pci channel is offline, ignore possible errors,
1656          * since we cannot communicate with the pci card anyway.
1657          */
1658         if (pci_channel_offline(phba->pcidev)) {
1659                 spin_lock_irq(&phba->hbalock);
1660                 phba->hba_flag &= ~DEFER_ERATT;
1661                 spin_unlock_irq(&phba->hbalock);
1662                 return;
1663         }
1664
1665         /* If resets are disabled then leave the HBA alone and return */
1666         if (!phba->cfg_enable_hba_reset)
1667                 return;
1668
1669         /* Send an internal error event to mgmt application */
1670         lpfc_board_errevt_to_mgmt(phba);
1671
1672         if (phba->hba_flag & DEFER_ERATT)
1673                 lpfc_handle_deferred_eratt(phba);
1674
1675         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1676                 if (phba->work_hs & HS_FFER6)
1677                         /* Re-establishing Link */
1678                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1679                                         "1301 Re-establishing Link "
1680                                         "Data: x%x x%x x%x\n",
1681                                         phba->work_hs, phba->work_status[0],
1682                                         phba->work_status[1]);
1683                 if (phba->work_hs & HS_FFER8)
1684                         /* Device Zeroization */
1685                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1686                                         "2861 Host Authentication device "
1687                                         "zeroization Data:x%x x%x x%x\n",
1688                                         phba->work_hs, phba->work_status[0],
1689                                         phba->work_status[1]);
1690
1691                 spin_lock_irq(&phba->hbalock);
1692                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1693                 spin_unlock_irq(&phba->hbalock);
1694
1695                 /*
1696                 * Firmware stops when it triggled erratt with HS_FFER6.
1697                 * That could cause the I/Os dropped by the firmware.
1698                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1699                 * retry it after re-establishing link.
1700                 */
1701                 lpfc_sli_abort_fcp_rings(phba);
1702
1703                 /*
1704                  * There was a firmware error.  Take the hba offline and then
1705                  * attempt to restart it.
1706                  */
1707                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1708                 lpfc_offline(phba);
1709                 lpfc_sli_brdrestart(phba);
1710                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1711                         lpfc_unblock_mgmt_io(phba);
1712                         return;
1713                 }
1714                 lpfc_unblock_mgmt_io(phba);
1715         } else if (phba->work_hs & HS_CRIT_TEMP) {
1716                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1717                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1718                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1719                 temp_event_data.data = (uint32_t)temperature;
1720
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0406 Adapter maximum temperature exceeded "
1723                                 "(%ld), taking this port offline "
1724                                 "Data: x%x x%x x%x\n",
1725                                 temperature, phba->work_hs,
1726                                 phba->work_status[0], phba->work_status[1]);
1727
1728                 shost = lpfc_shost_from_vport(phba->pport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                           sizeof(temp_event_data),
1731                                           (char *) &temp_event_data,
1732                                           SCSI_NL_VID_TYPE_PCI
1733                                           | PCI_VENDOR_ID_EMULEX);
1734
1735                 spin_lock_irq(&phba->hbalock);
1736                 phba->over_temp_state = HBA_OVER_TEMP;
1737                 spin_unlock_irq(&phba->hbalock);
1738                 lpfc_offline_eratt(phba);
1739
1740         } else {
1741                 /* The if clause above forces this code path when the status
1742                  * failure is a value other than FFER6. Do not call the offline
1743                  * twice. This is the adapter hardware error path.
1744                  */
1745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1746                                 "0457 Adapter Hardware Error "
1747                                 "Data: x%x x%x x%x\n",
1748                                 phba->work_hs,
1749                                 phba->work_status[0], phba->work_status[1]);
1750
1751                 event_data = FC_REG_DUMP_EVENT;
1752                 shost = lpfc_shost_from_vport(vport);
1753                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1754                                 sizeof(event_data), (char *) &event_data,
1755                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1756
1757                 lpfc_offline_eratt(phba);
1758         }
1759         return;
1760 }
1761
1762 /**
1763  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1764  * @phba: pointer to lpfc hba data structure.
1765  * @mbx_action: flag for mailbox shutdown action.
1766  *
1767  * This routine is invoked to perform an SLI4 port PCI function reset in
1768  * response to port status register polling attention. It waits for port
1769  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1770  * During this process, interrupt vectors are freed and later requested
1771  * for handling possible port resource change.
1772  **/
1773 static int
1774 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1775                             bool en_rn_msg)
1776 {
1777         int rc;
1778         uint32_t intr_mode;
1779
1780         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1781             LPFC_SLI_INTF_IF_TYPE_2) {
1782                 /*
1783                  * On error status condition, driver need to wait for port
1784                  * ready before performing reset.
1785                  */
1786                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1787                 if (rc)
1788                         return rc;
1789         }
1790
1791         /* need reset: attempt for port recovery */
1792         if (en_rn_msg)
1793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                 "2887 Reset Needed: Attempting Port "
1795                                 "Recovery...\n");
1796         lpfc_offline_prep(phba, mbx_action);
1797         lpfc_offline(phba);
1798         /* release interrupt for possible resource change */
1799         lpfc_sli4_disable_intr(phba);
1800         rc = lpfc_sli_brdrestart(phba);
1801         if (rc) {
1802                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1803                                 "6309 Failed to restart board\n");
1804                 return rc;
1805         }
1806         /* request and enable interrupt */
1807         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1808         if (intr_mode == LPFC_INTR_ERROR) {
1809                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1810                                 "3175 Failed to enable interrupt\n");
1811                 return -EIO;
1812         }
1813         phba->intr_mode = intr_mode;
1814         rc = lpfc_online(phba);
1815         if (rc == 0)
1816                 lpfc_unblock_mgmt_io(phba);
1817
1818         return rc;
1819 }
1820
1821 /**
1822  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1823  * @phba: pointer to lpfc hba data structure.
1824  *
1825  * This routine is invoked to handle the SLI4 HBA hardware error attention
1826  * conditions.
1827  **/
1828 static void
1829 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1830 {
1831         struct lpfc_vport *vport = phba->pport;
1832         uint32_t event_data;
1833         struct Scsi_Host *shost;
1834         uint32_t if_type;
1835         struct lpfc_register portstat_reg = {0};
1836         uint32_t reg_err1, reg_err2;
1837         uint32_t uerrlo_reg, uemasklo_reg;
1838         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1839         bool en_rn_msg = true;
1840         struct temp_event temp_event_data;
1841         struct lpfc_register portsmphr_reg;
1842         int rc, i;
1843
1844         /* If the pci channel is offline, ignore possible errors, since
1845          * we cannot communicate with the pci card anyway.
1846          */
1847         if (pci_channel_offline(phba->pcidev))
1848                 return;
1849
1850         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1851         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1852         switch (if_type) {
1853         case LPFC_SLI_INTF_IF_TYPE_0:
1854                 pci_rd_rc1 = lpfc_readl(
1855                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1856                                 &uerrlo_reg);
1857                 pci_rd_rc2 = lpfc_readl(
1858                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1859                                 &uemasklo_reg);
1860                 /* consider PCI bus read error as pci_channel_offline */
1861                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1862                         return;
1863                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1864                         lpfc_sli4_offline_eratt(phba);
1865                         return;
1866                 }
1867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1868                                 "7623 Checking UE recoverable");
1869
1870                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1871                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1872                                        &portsmphr_reg.word0))
1873                                 continue;
1874
1875                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1876                                                    &portsmphr_reg);
1877                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1878                             LPFC_PORT_SEM_UE_RECOVERABLE)
1879                                 break;
1880                         /*Sleep for 1Sec, before checking SEMAPHORE */
1881                         msleep(1000);
1882                 }
1883
1884                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1885                                 "4827 smphr_port_status x%x : Waited %dSec",
1886                                 smphr_port_status, i);
1887
1888                 /* Recoverable UE, reset the HBA device */
1889                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1890                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1891                         for (i = 0; i < 20; i++) {
1892                                 msleep(1000);
1893                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1894                                     &portsmphr_reg.word0) &&
1895                                     (LPFC_POST_STAGE_PORT_READY ==
1896                                      bf_get(lpfc_port_smphr_port_status,
1897                                      &portsmphr_reg))) {
1898                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1899                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1900                                         if (rc == 0)
1901                                                 return;
1902                                         lpfc_printf_log(phba,
1903                                                 KERN_ERR, LOG_INIT,
1904                                                 "4215 Failed to recover UE");
1905                                         break;
1906                                 }
1907                         }
1908                 }
1909                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1910                                 "7624 Firmware not ready: Failing UE recovery,"
1911                                 " waited %dSec", i);
1912                 lpfc_sli4_offline_eratt(phba);
1913                 break;
1914
1915         case LPFC_SLI_INTF_IF_TYPE_2:
1916         case LPFC_SLI_INTF_IF_TYPE_6:
1917                 pci_rd_rc1 = lpfc_readl(
1918                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1919                                 &portstat_reg.word0);
1920                 /* consider PCI bus read error as pci_channel_offline */
1921                 if (pci_rd_rc1 == -EIO) {
1922                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1923                                 "3151 PCI bus read access failure: x%x\n",
1924                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1925                         return;
1926                 }
1927                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1928                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1929                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1931                                 "2889 Port Overtemperature event, "
1932                                 "taking port offline Data: x%x x%x\n",
1933                                 reg_err1, reg_err2);
1934
1935                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1936                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1937                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1938                         temp_event_data.data = 0xFFFFFFFF;
1939
1940                         shost = lpfc_shost_from_vport(phba->pport);
1941                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1942                                                   sizeof(temp_event_data),
1943                                                   (char *)&temp_event_data,
1944                                                   SCSI_NL_VID_TYPE_PCI
1945                                                   | PCI_VENDOR_ID_EMULEX);
1946
1947                         spin_lock_irq(&phba->hbalock);
1948                         phba->over_temp_state = HBA_OVER_TEMP;
1949                         spin_unlock_irq(&phba->hbalock);
1950                         lpfc_sli4_offline_eratt(phba);
1951                         return;
1952                 }
1953                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1954                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1955                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1956                                         "3143 Port Down: Firmware Update "
1957                                         "Detected\n");
1958                         en_rn_msg = false;
1959                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1960                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1961                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1962                                         "3144 Port Down: Debug Dump\n");
1963                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1964                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1966                                         "3145 Port Down: Provisioning\n");
1967
1968                 /* If resets are disabled then leave the HBA alone and return */
1969                 if (!phba->cfg_enable_hba_reset)
1970                         return;
1971
1972                 /* Check port status register for function reset */
1973                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1974                                 en_rn_msg);
1975                 if (rc == 0) {
1976                         /* don't report event on forced debug dump */
1977                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1978                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1979                                 return;
1980                         else
1981                                 break;
1982                 }
1983                 /* fall through for not able to recover */
1984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1985                                 "3152 Unrecoverable error, bring the port "
1986                                 "offline\n");
1987                 lpfc_sli4_offline_eratt(phba);
1988                 break;
1989         case LPFC_SLI_INTF_IF_TYPE_1:
1990         default:
1991                 break;
1992         }
1993         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1994                         "3123 Report dump event to upper layer\n");
1995         /* Send an internal error event to mgmt application */
1996         lpfc_board_errevt_to_mgmt(phba);
1997
1998         event_data = FC_REG_DUMP_EVENT;
1999         shost = lpfc_shost_from_vport(vport);
2000         fc_host_post_vendor_event(shost, fc_get_event_number(),
2001                                   sizeof(event_data), (char *) &event_data,
2002                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2003 }
2004
2005 /**
2006  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2007  * @phba: pointer to lpfc HBA data structure.
2008  *
2009  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2010  * routine from the API jump table function pointer from the lpfc_hba struct.
2011  *
2012  * Return codes
2013  *   0 - success.
2014  *   Any other value - error.
2015  **/
2016 void
2017 lpfc_handle_eratt(struct lpfc_hba *phba)
2018 {
2019         (*phba->lpfc_handle_eratt)(phba);
2020 }
2021
2022 /**
2023  * lpfc_handle_latt - The HBA link event handler
2024  * @phba: pointer to lpfc hba data structure.
2025  *
2026  * This routine is invoked from the worker thread to handle a HBA host
2027  * attention link event. SLI3 only.
2028  **/
2029 void
2030 lpfc_handle_latt(struct lpfc_hba *phba)
2031 {
2032         struct lpfc_vport *vport = phba->pport;
2033         struct lpfc_sli   *psli = &phba->sli;
2034         LPFC_MBOXQ_t *pmb;
2035         volatile uint32_t control;
2036         struct lpfc_dmabuf *mp;
2037         int rc = 0;
2038
2039         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2040         if (!pmb) {
2041                 rc = 1;
2042                 goto lpfc_handle_latt_err_exit;
2043         }
2044
2045         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2046         if (!mp) {
2047                 rc = 2;
2048                 goto lpfc_handle_latt_free_pmb;
2049         }
2050
2051         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2052         if (!mp->virt) {
2053                 rc = 3;
2054                 goto lpfc_handle_latt_free_mp;
2055         }
2056
2057         /* Cleanup any outstanding ELS commands */
2058         lpfc_els_flush_all_cmd(phba);
2059
2060         psli->slistat.link_event++;
2061         lpfc_read_topology(phba, pmb, mp);
2062         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2063         pmb->vport = vport;
2064         /* Block ELS IOCBs until we have processed this mbox command */
2065         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2066         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2067         if (rc == MBX_NOT_FINISHED) {
2068                 rc = 4;
2069                 goto lpfc_handle_latt_free_mbuf;
2070         }
2071
2072         /* Clear Link Attention in HA REG */
2073         spin_lock_irq(&phba->hbalock);
2074         writel(HA_LATT, phba->HAregaddr);
2075         readl(phba->HAregaddr); /* flush */
2076         spin_unlock_irq(&phba->hbalock);
2077
2078         return;
2079
2080 lpfc_handle_latt_free_mbuf:
2081         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2082         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2083 lpfc_handle_latt_free_mp:
2084         kfree(mp);
2085 lpfc_handle_latt_free_pmb:
2086         mempool_free(pmb, phba->mbox_mem_pool);
2087 lpfc_handle_latt_err_exit:
2088         /* Enable Link attention interrupts */
2089         spin_lock_irq(&phba->hbalock);
2090         psli->sli_flag |= LPFC_PROCESS_LA;
2091         control = readl(phba->HCregaddr);
2092         control |= HC_LAINT_ENA;
2093         writel(control, phba->HCregaddr);
2094         readl(phba->HCregaddr); /* flush */
2095
2096         /* Clear Link Attention in HA REG */
2097         writel(HA_LATT, phba->HAregaddr);
2098         readl(phba->HAregaddr); /* flush */
2099         spin_unlock_irq(&phba->hbalock);
2100         lpfc_linkdown(phba);
2101         phba->link_state = LPFC_HBA_ERROR;
2102
2103         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2104                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2105
2106         return;
2107 }
2108
2109 /**
2110  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2111  * @phba: pointer to lpfc hba data structure.
2112  * @vpd: pointer to the vital product data.
2113  * @len: length of the vital product data in bytes.
2114  *
2115  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2116  * an array of characters. In this routine, the ModelName, ProgramType, and
2117  * ModelDesc, etc. fields of the phba data structure will be populated.
2118  *
2119  * Return codes
2120  *   0 - pointer to the VPD passed in is NULL
2121  *   1 - success
2122  **/
2123 int
2124 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2125 {
2126         uint8_t lenlo, lenhi;
2127         int Length;
2128         int i, j;
2129         int finished = 0;
2130         int index = 0;
2131
2132         if (!vpd)
2133                 return 0;
2134
2135         /* Vital Product */
2136         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2137                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2138                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2139                         (uint32_t) vpd[3]);
2140         while (!finished && (index < (len - 4))) {
2141                 switch (vpd[index]) {
2142                 case 0x82:
2143                 case 0x91:
2144                         index += 1;
2145                         lenlo = vpd[index];
2146                         index += 1;
2147                         lenhi = vpd[index];
2148                         index += 1;
2149                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2150                         index += i;
2151                         break;
2152                 case 0x90:
2153                         index += 1;
2154                         lenlo = vpd[index];
2155                         index += 1;
2156                         lenhi = vpd[index];
2157                         index += 1;
2158                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2159                         if (Length > len - index)
2160                                 Length = len - index;
2161                         while (Length > 0) {
2162                         /* Look for Serial Number */
2163                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2164                                 index += 2;
2165                                 i = vpd[index];
2166                                 index += 1;
2167                                 j = 0;
2168                                 Length -= (3+i);
2169                                 while(i--) {
2170                                         phba->SerialNumber[j++] = vpd[index++];
2171                                         if (j == 31)
2172                                                 break;
2173                                 }
2174                                 phba->SerialNumber[j] = 0;
2175                                 continue;
2176                         }
2177                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2178                                 phba->vpd_flag |= VPD_MODEL_DESC;
2179                                 index += 2;
2180                                 i = vpd[index];
2181                                 index += 1;
2182                                 j = 0;
2183                                 Length -= (3+i);
2184                                 while(i--) {
2185                                         phba->ModelDesc[j++] = vpd[index++];
2186                                         if (j == 255)
2187                                                 break;
2188                                 }
2189                                 phba->ModelDesc[j] = 0;
2190                                 continue;
2191                         }
2192                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2193                                 phba->vpd_flag |= VPD_MODEL_NAME;
2194                                 index += 2;
2195                                 i = vpd[index];
2196                                 index += 1;
2197                                 j = 0;
2198                                 Length -= (3+i);
2199                                 while(i--) {
2200                                         phba->ModelName[j++] = vpd[index++];
2201                                         if (j == 79)
2202                                                 break;
2203                                 }
2204                                 phba->ModelName[j] = 0;
2205                                 continue;
2206                         }
2207                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2208                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2209                                 index += 2;
2210                                 i = vpd[index];
2211                                 index += 1;
2212                                 j = 0;
2213                                 Length -= (3+i);
2214                                 while(i--) {
2215                                         phba->ProgramType[j++] = vpd[index++];
2216                                         if (j == 255)
2217                                                 break;
2218                                 }
2219                                 phba->ProgramType[j] = 0;
2220                                 continue;
2221                         }
2222                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2223                                 phba->vpd_flag |= VPD_PORT;
2224                                 index += 2;
2225                                 i = vpd[index];
2226                                 index += 1;
2227                                 j = 0;
2228                                 Length -= (3+i);
2229                                 while(i--) {
2230                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2231                                             (phba->sli4_hba.pport_name_sta ==
2232                                              LPFC_SLI4_PPNAME_GET)) {
2233                                                 j++;
2234                                                 index++;
2235                                         } else
2236                                                 phba->Port[j++] = vpd[index++];
2237                                         if (j == 19)
2238                                                 break;
2239                                 }
2240                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2241                                     (phba->sli4_hba.pport_name_sta ==
2242                                      LPFC_SLI4_PPNAME_NON))
2243                                         phba->Port[j] = 0;
2244                                 continue;
2245                         }
2246                         else {
2247                                 index += 2;
2248                                 i = vpd[index];
2249                                 index += 1;
2250                                 index += i;
2251                                 Length -= (3 + i);
2252                         }
2253                 }
2254                 finished = 0;
2255                 break;
2256                 case 0x78:
2257                         finished = 1;
2258                         break;
2259                 default:
2260                         index ++;
2261                         break;
2262                 }
2263         }
2264
2265         return(1);
2266 }
2267
2268 /**
2269  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2270  * @phba: pointer to lpfc hba data structure.
2271  * @mdp: pointer to the data structure to hold the derived model name.
2272  * @descp: pointer to the data structure to hold the derived description.
2273  *
2274  * This routine retrieves HBA's description based on its registered PCI device
2275  * ID. The @descp passed into this function points to an array of 256 chars. It
2276  * shall be returned with the model name, maximum speed, and the host bus type.
2277  * The @mdp passed into this function points to an array of 80 chars. When the
2278  * function returns, the @mdp will be filled with the model name.
2279  **/
2280 static void
2281 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2282 {
2283         lpfc_vpd_t *vp;
2284         uint16_t dev_id = phba->pcidev->device;
2285         int max_speed;
2286         int GE = 0;
2287         int oneConnect = 0; /* default is not a oneConnect */
2288         struct {
2289                 char *name;
2290                 char *bus;
2291                 char *function;
2292         } m = {"<Unknown>", "", ""};
2293
2294         if (mdp && mdp[0] != '\0'
2295                 && descp && descp[0] != '\0')
2296                 return;
2297
2298         if (phba->lmt & LMT_64Gb)
2299                 max_speed = 64;
2300         else if (phba->lmt & LMT_32Gb)
2301                 max_speed = 32;
2302         else if (phba->lmt & LMT_16Gb)
2303                 max_speed = 16;
2304         else if (phba->lmt & LMT_10Gb)
2305                 max_speed = 10;
2306         else if (phba->lmt & LMT_8Gb)
2307                 max_speed = 8;
2308         else if (phba->lmt & LMT_4Gb)
2309                 max_speed = 4;
2310         else if (phba->lmt & LMT_2Gb)
2311                 max_speed = 2;
2312         else if (phba->lmt & LMT_1Gb)
2313                 max_speed = 1;
2314         else
2315                 max_speed = 0;
2316
2317         vp = &phba->vpd;
2318
2319         switch (dev_id) {
2320         case PCI_DEVICE_ID_FIREFLY:
2321                 m = (typeof(m)){"LP6000", "PCI",
2322                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2323                 break;
2324         case PCI_DEVICE_ID_SUPERFLY:
2325                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2326                         m = (typeof(m)){"LP7000", "PCI", ""};
2327                 else
2328                         m = (typeof(m)){"LP7000E", "PCI", ""};
2329                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2330                 break;
2331         case PCI_DEVICE_ID_DRAGONFLY:
2332                 m = (typeof(m)){"LP8000", "PCI",
2333                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2334                 break;
2335         case PCI_DEVICE_ID_CENTAUR:
2336                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2337                         m = (typeof(m)){"LP9002", "PCI", ""};
2338                 else
2339                         m = (typeof(m)){"LP9000", "PCI", ""};
2340                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2341                 break;
2342         case PCI_DEVICE_ID_RFLY:
2343                 m = (typeof(m)){"LP952", "PCI",
2344                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2345                 break;
2346         case PCI_DEVICE_ID_PEGASUS:
2347                 m = (typeof(m)){"LP9802", "PCI-X",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_THOR:
2351                 m = (typeof(m)){"LP10000", "PCI-X",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_VIPER:
2355                 m = (typeof(m)){"LPX1000",  "PCI-X",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_PFLY:
2359                 m = (typeof(m)){"LP982", "PCI-X",
2360                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2361                 break;
2362         case PCI_DEVICE_ID_TFLY:
2363                 m = (typeof(m)){"LP1050", "PCI-X",
2364                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2365                 break;
2366         case PCI_DEVICE_ID_HELIOS:
2367                 m = (typeof(m)){"LP11000", "PCI-X2",
2368                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2369                 break;
2370         case PCI_DEVICE_ID_HELIOS_SCSP:
2371                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2372                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2373                 break;
2374         case PCI_DEVICE_ID_HELIOS_DCSP:
2375                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2376                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_NEPTUNE:
2379                 m = (typeof(m)){"LPe1000", "PCIe",
2380                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2381                 break;
2382         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2383                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2384                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2387                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2388                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2389                 break;
2390         case PCI_DEVICE_ID_BMID:
2391                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_BSMB:
2394                 m = (typeof(m)){"LP111", "PCI-X2",
2395                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_ZEPHYR:
2398                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2401                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2404                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2405                 GE = 1;
2406                 break;
2407         case PCI_DEVICE_ID_ZMID:
2408                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2409                 break;
2410         case PCI_DEVICE_ID_ZSMB:
2411                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2412                 break;
2413         case PCI_DEVICE_ID_LP101:
2414                 m = (typeof(m)){"LP101", "PCI-X",
2415                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_LP10000S:
2418                 m = (typeof(m)){"LP10000-S", "PCI",
2419                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_LP11000S:
2422                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2423                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2424                 break;
2425         case PCI_DEVICE_ID_LPE11000S:
2426                 m = (typeof(m)){"LPe11000-S", "PCIe",
2427                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2428                 break;
2429         case PCI_DEVICE_ID_SAT:
2430                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2431                 break;
2432         case PCI_DEVICE_ID_SAT_MID:
2433                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2434                 break;
2435         case PCI_DEVICE_ID_SAT_SMB:
2436                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2437                 break;
2438         case PCI_DEVICE_ID_SAT_DCSP:
2439                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2440                 break;
2441         case PCI_DEVICE_ID_SAT_SCSP:
2442                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2443                 break;
2444         case PCI_DEVICE_ID_SAT_S:
2445                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2446                 break;
2447         case PCI_DEVICE_ID_HORNET:
2448                 m = (typeof(m)){"LP21000", "PCIe",
2449                                 "Obsolete, Unsupported FCoE Adapter"};
2450                 GE = 1;
2451                 break;
2452         case PCI_DEVICE_ID_PROTEUS_VF:
2453                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_PROTEUS_PF:
2457                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PROTEUS_S:
2461                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_TIGERSHARK:
2465                 oneConnect = 1;
2466                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2467                 break;
2468         case PCI_DEVICE_ID_TOMCAT:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2471                 break;
2472         case PCI_DEVICE_ID_FALCON:
2473                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2474                                 "EmulexSecure Fibre"};
2475                 break;
2476         case PCI_DEVICE_ID_BALIUS:
2477                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2478                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_LANCER_FC:
2481                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2482                 break;
2483         case PCI_DEVICE_ID_LANCER_FC_VF:
2484                 m = (typeof(m)){"LPe16000", "PCIe",
2485                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2486                 break;
2487         case PCI_DEVICE_ID_LANCER_FCOE:
2488                 oneConnect = 1;
2489                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2492                 oneConnect = 1;
2493                 m = (typeof(m)){"OCe15100", "PCIe",
2494                                 "Obsolete, Unsupported FCoE"};
2495                 break;
2496         case PCI_DEVICE_ID_LANCER_G6_FC:
2497                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2498                 break;
2499         case PCI_DEVICE_ID_LANCER_G7_FC:
2500                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2501                 break;
2502         case PCI_DEVICE_ID_SKYHAWK:
2503         case PCI_DEVICE_ID_SKYHAWK_VF:
2504                 oneConnect = 1;
2505                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2506                 break;
2507         default:
2508                 m = (typeof(m)){"Unknown", "", ""};
2509                 break;
2510         }
2511
2512         if (mdp && mdp[0] == '\0')
2513                 snprintf(mdp, 79,"%s", m.name);
2514         /*
2515          * oneConnect hba requires special processing, they are all initiators
2516          * and we put the port number on the end
2517          */
2518         if (descp && descp[0] == '\0') {
2519                 if (oneConnect)
2520                         snprintf(descp, 255,
2521                                 "Emulex OneConnect %s, %s Initiator %s",
2522                                 m.name, m.function,
2523                                 phba->Port);
2524                 else if (max_speed == 0)
2525                         snprintf(descp, 255,
2526                                 "Emulex %s %s %s",
2527                                 m.name, m.bus, m.function);
2528                 else
2529                         snprintf(descp, 255,
2530                                 "Emulex %s %d%s %s %s",
2531                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2532                                 m.bus, m.function);
2533         }
2534 }
2535
2536 /**
2537  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2538  * @phba: pointer to lpfc hba data structure.
2539  * @pring: pointer to a IOCB ring.
2540  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2541  *
2542  * This routine posts a given number of IOCBs with the associated DMA buffer
2543  * descriptors specified by the cnt argument to the given IOCB ring.
2544  *
2545  * Return codes
2546  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2547  **/
2548 int
2549 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2550 {
2551         IOCB_t *icmd;
2552         struct lpfc_iocbq *iocb;
2553         struct lpfc_dmabuf *mp1, *mp2;
2554
2555         cnt += pring->missbufcnt;
2556
2557         /* While there are buffers to post */
2558         while (cnt > 0) {
2559                 /* Allocate buffer for  command iocb */
2560                 iocb = lpfc_sli_get_iocbq(phba);
2561                 if (iocb == NULL) {
2562                         pring->missbufcnt = cnt;
2563                         return cnt;
2564                 }
2565                 icmd = &iocb->iocb;
2566
2567                 /* 2 buffers can be posted per command */
2568                 /* Allocate buffer to post */
2569                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2570                 if (mp1)
2571                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2572                 if (!mp1 || !mp1->virt) {
2573                         kfree(mp1);
2574                         lpfc_sli_release_iocbq(phba, iocb);
2575                         pring->missbufcnt = cnt;
2576                         return cnt;
2577                 }
2578
2579                 INIT_LIST_HEAD(&mp1->list);
2580                 /* Allocate buffer to post */
2581                 if (cnt > 1) {
2582                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2583                         if (mp2)
2584                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2585                                                             &mp2->phys);
2586                         if (!mp2 || !mp2->virt) {
2587                                 kfree(mp2);
2588                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2589                                 kfree(mp1);
2590                                 lpfc_sli_release_iocbq(phba, iocb);
2591                                 pring->missbufcnt = cnt;
2592                                 return cnt;
2593                         }
2594
2595                         INIT_LIST_HEAD(&mp2->list);
2596                 } else {
2597                         mp2 = NULL;
2598                 }
2599
2600                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2601                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2602                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2603                 icmd->ulpBdeCount = 1;
2604                 cnt--;
2605                 if (mp2) {
2606                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2607                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2608                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2609                         cnt--;
2610                         icmd->ulpBdeCount = 2;
2611                 }
2612
2613                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2614                 icmd->ulpLe = 1;
2615
2616                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2617                     IOCB_ERROR) {
2618                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2619                         kfree(mp1);
2620                         cnt++;
2621                         if (mp2) {
2622                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2623                                 kfree(mp2);
2624                                 cnt++;
2625                         }
2626                         lpfc_sli_release_iocbq(phba, iocb);
2627                         pring->missbufcnt = cnt;
2628                         return cnt;
2629                 }
2630                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2631                 if (mp2)
2632                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2633         }
2634         pring->missbufcnt = 0;
2635         return 0;
2636 }
2637
2638 /**
2639  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2640  * @phba: pointer to lpfc hba data structure.
2641  *
2642  * This routine posts initial receive IOCB buffers to the ELS ring. The
2643  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2644  * set to 64 IOCBs. SLI3 only.
2645  *
2646  * Return codes
2647  *   0 - success (currently always success)
2648  **/
2649 static int
2650 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2651 {
2652         struct lpfc_sli *psli = &phba->sli;
2653
2654         /* Ring 0, ELS / CT buffers */
2655         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2656         /* Ring 2 - FCP no buffers needed */
2657
2658         return 0;
2659 }
2660
2661 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2662
2663 /**
2664  * lpfc_sha_init - Set up initial array of hash table entries
2665  * @HashResultPointer: pointer to an array as hash table.
2666  *
2667  * This routine sets up the initial values to the array of hash table entries
2668  * for the LC HBAs.
2669  **/
2670 static void
2671 lpfc_sha_init(uint32_t * HashResultPointer)
2672 {
2673         HashResultPointer[0] = 0x67452301;
2674         HashResultPointer[1] = 0xEFCDAB89;
2675         HashResultPointer[2] = 0x98BADCFE;
2676         HashResultPointer[3] = 0x10325476;
2677         HashResultPointer[4] = 0xC3D2E1F0;
2678 }
2679
2680 /**
2681  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2682  * @HashResultPointer: pointer to an initial/result hash table.
2683  * @HashWorkingPointer: pointer to an working hash table.
2684  *
2685  * This routine iterates an initial hash table pointed by @HashResultPointer
2686  * with the values from the working hash table pointeed by @HashWorkingPointer.
2687  * The results are putting back to the initial hash table, returned through
2688  * the @HashResultPointer as the result hash table.
2689  **/
2690 static void
2691 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2692 {
2693         int t;
2694         uint32_t TEMP;
2695         uint32_t A, B, C, D, E;
2696         t = 16;
2697         do {
2698                 HashWorkingPointer[t] =
2699                     S(1,
2700                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2701                                                                      8] ^
2702                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2703         } while (++t <= 79);
2704         t = 0;
2705         A = HashResultPointer[0];
2706         B = HashResultPointer[1];
2707         C = HashResultPointer[2];
2708         D = HashResultPointer[3];
2709         E = HashResultPointer[4];
2710
2711         do {
2712                 if (t < 20) {
2713                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2714                 } else if (t < 40) {
2715                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2716                 } else if (t < 60) {
2717                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2718                 } else {
2719                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2720                 }
2721                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2722                 E = D;
2723                 D = C;
2724                 C = S(30, B);
2725                 B = A;
2726                 A = TEMP;
2727         } while (++t <= 79);
2728
2729         HashResultPointer[0] += A;
2730         HashResultPointer[1] += B;
2731         HashResultPointer[2] += C;
2732         HashResultPointer[3] += D;
2733         HashResultPointer[4] += E;
2734
2735 }
2736
2737 /**
2738  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2739  * @RandomChallenge: pointer to the entry of host challenge random number array.
2740  * @HashWorking: pointer to the entry of the working hash array.
2741  *
2742  * This routine calculates the working hash array referred by @HashWorking
2743  * from the challenge random numbers associated with the host, referred by
2744  * @RandomChallenge. The result is put into the entry of the working hash
2745  * array and returned by reference through @HashWorking.
2746  **/
2747 static void
2748 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2749 {
2750         *HashWorking = (*RandomChallenge ^ *HashWorking);
2751 }
2752
2753 /**
2754  * lpfc_hba_init - Perform special handling for LC HBA initialization
2755  * @phba: pointer to lpfc hba data structure.
2756  * @hbainit: pointer to an array of unsigned 32-bit integers.
2757  *
2758  * This routine performs the special handling for LC HBA initialization.
2759  **/
2760 void
2761 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2762 {
2763         int t;
2764         uint32_t *HashWorking;
2765         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2766
2767         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2768         if (!HashWorking)
2769                 return;
2770
2771         HashWorking[0] = HashWorking[78] = *pwwnn++;
2772         HashWorking[1] = HashWorking[79] = *pwwnn;
2773
2774         for (t = 0; t < 7; t++)
2775                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2776
2777         lpfc_sha_init(hbainit);
2778         lpfc_sha_iterate(hbainit, HashWorking);
2779         kfree(HashWorking);
2780 }
2781
2782 /**
2783  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2784  * @vport: pointer to a virtual N_Port data structure.
2785  *
2786  * This routine performs the necessary cleanups before deleting the @vport.
2787  * It invokes the discovery state machine to perform necessary state
2788  * transitions and to release the ndlps associated with the @vport. Note,
2789  * the physical port is treated as @vport 0.
2790  **/
2791 void
2792 lpfc_cleanup(struct lpfc_vport *vport)
2793 {
2794         struct lpfc_hba   *phba = vport->phba;
2795         struct lpfc_nodelist *ndlp, *next_ndlp;
2796         int i = 0;
2797
2798         if (phba->link_state > LPFC_LINK_DOWN)
2799                 lpfc_port_link_failure(vport);
2800
2801         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2802                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2803                         ndlp = lpfc_enable_node(vport, ndlp,
2804                                                 NLP_STE_UNUSED_NODE);
2805                         if (!ndlp)
2806                                 continue;
2807                         spin_lock_irq(&phba->ndlp_lock);
2808                         NLP_SET_FREE_REQ(ndlp);
2809                         spin_unlock_irq(&phba->ndlp_lock);
2810                         /* Trigger the release of the ndlp memory */
2811                         lpfc_nlp_put(ndlp);
2812                         continue;
2813                 }
2814                 spin_lock_irq(&phba->ndlp_lock);
2815                 if (NLP_CHK_FREE_REQ(ndlp)) {
2816                         /* The ndlp should not be in memory free mode already */
2817                         spin_unlock_irq(&phba->ndlp_lock);
2818                         continue;
2819                 } else
2820                         /* Indicate request for freeing ndlp memory */
2821                         NLP_SET_FREE_REQ(ndlp);
2822                 spin_unlock_irq(&phba->ndlp_lock);
2823
2824                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2825                     ndlp->nlp_DID == Fabric_DID) {
2826                         /* Just free up ndlp with Fabric_DID for vports */
2827                         lpfc_nlp_put(ndlp);
2828                         continue;
2829                 }
2830
2831                 /* take care of nodes in unused state before the state
2832                  * machine taking action.
2833                  */
2834                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2835                         lpfc_nlp_put(ndlp);
2836                         continue;
2837                 }
2838
2839                 if (ndlp->nlp_type & NLP_FABRIC)
2840                         lpfc_disc_state_machine(vport, ndlp, NULL,
2841                                         NLP_EVT_DEVICE_RECOVERY);
2842
2843                 lpfc_disc_state_machine(vport, ndlp, NULL,
2844                                              NLP_EVT_DEVICE_RM);
2845         }
2846
2847         /* At this point, ALL ndlp's should be gone
2848          * because of the previous NLP_EVT_DEVICE_RM.
2849          * Lets wait for this to happen, if needed.
2850          */
2851         while (!list_empty(&vport->fc_nodes)) {
2852                 if (i++ > 3000) {
2853                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2854                                 "0233 Nodelist not empty\n");
2855                         list_for_each_entry_safe(ndlp, next_ndlp,
2856                                                 &vport->fc_nodes, nlp_listp) {
2857                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2858                                                 LOG_NODE,
2859                                                 "0282 did:x%x ndlp:x%p "
2860                                                 "usgmap:x%x refcnt:%d\n",
2861                                                 ndlp->nlp_DID, (void *)ndlp,
2862                                                 ndlp->nlp_usg_map,
2863                                                 kref_read(&ndlp->kref));
2864                         }
2865                         break;
2866                 }
2867
2868                 /* Wait for any activity on ndlps to settle */
2869                 msleep(10);
2870         }
2871         lpfc_cleanup_vports_rrqs(vport, NULL);
2872 }
2873
2874 /**
2875  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2876  * @vport: pointer to a virtual N_Port data structure.
2877  *
2878  * This routine stops all the timers associated with a @vport. This function
2879  * is invoked before disabling or deleting a @vport. Note that the physical
2880  * port is treated as @vport 0.
2881  **/
2882 void
2883 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2884 {
2885         del_timer_sync(&vport->els_tmofunc);
2886         del_timer_sync(&vport->delayed_disc_tmo);
2887         lpfc_can_disctmo(vport);
2888         return;
2889 }
2890
2891 /**
2892  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2893  * @phba: pointer to lpfc hba data structure.
2894  *
2895  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2896  * caller of this routine should already hold the host lock.
2897  **/
2898 void
2899 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2900 {
2901         /* Clear pending FCF rediscovery wait flag */
2902         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2903
2904         /* Now, try to stop the timer */
2905         del_timer(&phba->fcf.redisc_wait);
2906 }
2907
2908 /**
2909  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2910  * @phba: pointer to lpfc hba data structure.
2911  *
2912  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2913  * checks whether the FCF rediscovery wait timer is pending with the host
2914  * lock held before proceeding with disabling the timer and clearing the
2915  * wait timer pendig flag.
2916  **/
2917 void
2918 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2919 {
2920         spin_lock_irq(&phba->hbalock);
2921         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2922                 /* FCF rediscovery timer already fired or stopped */
2923                 spin_unlock_irq(&phba->hbalock);
2924                 return;
2925         }
2926         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2927         /* Clear failover in progress flags */
2928         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2929         spin_unlock_irq(&phba->hbalock);
2930 }
2931
2932 /**
2933  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2934  * @phba: pointer to lpfc hba data structure.
2935  *
2936  * This routine stops all the timers associated with a HBA. This function is
2937  * invoked before either putting a HBA offline or unloading the driver.
2938  **/
2939 void
2940 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2941 {
2942         if (phba->pport)
2943                 lpfc_stop_vport_timers(phba->pport);
2944         cancel_delayed_work_sync(&phba->eq_delay_work);
2945         del_timer_sync(&phba->sli.mbox_tmo);
2946         del_timer_sync(&phba->fabric_block_timer);
2947         del_timer_sync(&phba->eratt_poll);
2948         del_timer_sync(&phba->hb_tmofunc);
2949         if (phba->sli_rev == LPFC_SLI_REV4) {
2950                 del_timer_sync(&phba->rrq_tmr);
2951                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2952         }
2953         phba->hb_outstanding = 0;
2954
2955         switch (phba->pci_dev_grp) {
2956         case LPFC_PCI_DEV_LP:
2957                 /* Stop any LightPulse device specific driver timers */
2958                 del_timer_sync(&phba->fcp_poll_timer);
2959                 break;
2960         case LPFC_PCI_DEV_OC:
2961                 /* Stop any OneConnect device sepcific driver timers */
2962                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2963                 break;
2964         default:
2965                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2966                                 "0297 Invalid device group (x%x)\n",
2967                                 phba->pci_dev_grp);
2968                 break;
2969         }
2970         return;
2971 }
2972
2973 /**
2974  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2975  * @phba: pointer to lpfc hba data structure.
2976  *
2977  * This routine marks a HBA's management interface as blocked. Once the HBA's
2978  * management interface is marked as blocked, all the user space access to
2979  * the HBA, whether they are from sysfs interface or libdfc interface will
2980  * all be blocked. The HBA is set to block the management interface when the
2981  * driver prepares the HBA interface for online or offline.
2982  **/
2983 static void
2984 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2985 {
2986         unsigned long iflag;
2987         uint8_t actcmd = MBX_HEARTBEAT;
2988         unsigned long timeout;
2989
2990         spin_lock_irqsave(&phba->hbalock, iflag);
2991         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2992         spin_unlock_irqrestore(&phba->hbalock, iflag);
2993         if (mbx_action == LPFC_MBX_NO_WAIT)
2994                 return;
2995         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2996         spin_lock_irqsave(&phba->hbalock, iflag);
2997         if (phba->sli.mbox_active) {
2998                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2999                 /* Determine how long we might wait for the active mailbox
3000                  * command to be gracefully completed by firmware.
3001                  */
3002                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3003                                 phba->sli.mbox_active) * 1000) + jiffies;
3004         }
3005         spin_unlock_irqrestore(&phba->hbalock, iflag);
3006
3007         /* Wait for the outstnading mailbox command to complete */
3008         while (phba->sli.mbox_active) {
3009                 /* Check active mailbox complete status every 2ms */
3010                 msleep(2);
3011                 if (time_after(jiffies, timeout)) {
3012                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3013                                 "2813 Mgmt IO is Blocked %x "
3014                                 "- mbox cmd %x still active\n",
3015                                 phba->sli.sli_flag, actcmd);
3016                         break;
3017                 }
3018         }
3019 }
3020
3021 /**
3022  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3023  * @phba: pointer to lpfc hba data structure.
3024  *
3025  * Allocate RPIs for all active remote nodes. This is needed whenever
3026  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3027  * is to fixup the temporary rpi assignments.
3028  **/
3029 void
3030 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3031 {
3032         struct lpfc_nodelist  *ndlp, *next_ndlp;
3033         struct lpfc_vport **vports;
3034         int i, rpi;
3035         unsigned long flags;
3036
3037         if (phba->sli_rev != LPFC_SLI_REV4)
3038                 return;
3039
3040         vports = lpfc_create_vport_work_array(phba);
3041         if (vports == NULL)
3042                 return;
3043
3044         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3045                 if (vports[i]->load_flag & FC_UNLOADING)
3046                         continue;
3047
3048                 list_for_each_entry_safe(ndlp, next_ndlp,
3049                                          &vports[i]->fc_nodes,
3050                                          nlp_listp) {
3051                         if (!NLP_CHK_NODE_ACT(ndlp))
3052                                 continue;
3053                         rpi = lpfc_sli4_alloc_rpi(phba);
3054                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3055                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3056                                 NLP_CLR_NODE_ACT(ndlp);
3057                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3058                                 continue;
3059                         }
3060                         ndlp->nlp_rpi = rpi;
3061                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3062                                          "0009 rpi:%x DID:%x "
3063                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3064                                          ndlp->nlp_DID, ndlp->nlp_flag,
3065                                          ndlp->nlp_usg_map, ndlp);
3066                 }
3067         }
3068         lpfc_destroy_vport_work_array(phba, vports);
3069 }
3070
3071 /**
3072  * lpfc_create_expedite_pool - create expedite pool
3073  * @phba: pointer to lpfc hba data structure.
3074  *
3075  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3076  * to expedite pool. Mark them as expedite.
3077  **/
3078 void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3079 {
3080         struct lpfc_sli4_hdw_queue *qp;
3081         struct lpfc_io_buf *lpfc_ncmd;
3082         struct lpfc_io_buf *lpfc_ncmd_next;
3083         struct lpfc_epd_pool *epd_pool;
3084         unsigned long iflag;
3085
3086         epd_pool = &phba->epd_pool;
3087         qp = &phba->sli4_hba.hdwq[0];
3088
3089         spin_lock_init(&epd_pool->lock);
3090         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3091         spin_lock(&epd_pool->lock);
3092         INIT_LIST_HEAD(&epd_pool->list);
3093         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3094                                  &qp->lpfc_io_buf_list_put, list) {
3095                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3096                 lpfc_ncmd->expedite = true;
3097                 qp->put_io_bufs--;
3098                 epd_pool->count++;
3099                 if (epd_pool->count >= XRI_BATCH)
3100                         break;
3101         }
3102         spin_unlock(&epd_pool->lock);
3103         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3104 }
3105
3106 /**
3107  * lpfc_destroy_expedite_pool - destroy expedite pool
3108  * @phba: pointer to lpfc hba data structure.
3109  *
3110  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3111  * of HWQ 0. Clear the mark.
3112  **/
3113 void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3114 {
3115         struct lpfc_sli4_hdw_queue *qp;
3116         struct lpfc_io_buf *lpfc_ncmd;
3117         struct lpfc_io_buf *lpfc_ncmd_next;
3118         struct lpfc_epd_pool *epd_pool;
3119         unsigned long iflag;
3120
3121         epd_pool = &phba->epd_pool;
3122         qp = &phba->sli4_hba.hdwq[0];
3123
3124         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3125         spin_lock(&epd_pool->lock);
3126         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3127                                  &epd_pool->list, list) {
3128                 list_move_tail(&lpfc_ncmd->list,
3129                                &qp->lpfc_io_buf_list_put);
3130                 lpfc_ncmd->flags = false;
3131                 qp->put_io_bufs++;
3132                 epd_pool->count--;
3133         }
3134         spin_unlock(&epd_pool->lock);
3135         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3136 }
3137
3138 /**
3139  * lpfc_create_multixri_pools - create multi-XRI pools
3140  * @phba: pointer to lpfc hba data structure.
3141  *
3142  * This routine initialize public, private per HWQ. Then, move XRIs from
3143  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3144  * Initialized.
3145  **/
3146 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3147 {
3148         u32 i, j;
3149         u32 hwq_count;
3150         u32 count_per_hwq;
3151         struct lpfc_io_buf *lpfc_ncmd;
3152         struct lpfc_io_buf *lpfc_ncmd_next;
3153         unsigned long iflag;
3154         struct lpfc_sli4_hdw_queue *qp;
3155         struct lpfc_multixri_pool *multixri_pool;
3156         struct lpfc_pbl_pool *pbl_pool;
3157         struct lpfc_pvt_pool *pvt_pool;
3158
3159         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3160                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3161                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3162                         phba->sli4_hba.io_xri_cnt);
3163
3164         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3165                 lpfc_create_expedite_pool(phba);
3166
3167         hwq_count = phba->cfg_hdw_queue;
3168         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3169
3170         for (i = 0; i < hwq_count; i++) {
3171                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3172
3173                 if (!multixri_pool) {
3174                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3175                                         "1238 Failed to allocate memory for "
3176                                         "multixri_pool\n");
3177
3178                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3179                                 lpfc_destroy_expedite_pool(phba);
3180
3181                         j = 0;
3182                         while (j < i) {
3183                                 qp = &phba->sli4_hba.hdwq[j];
3184                                 kfree(qp->p_multixri_pool);
3185                                 j++;
3186                         }
3187                         phba->cfg_xri_rebalancing = 0;
3188                         return;
3189                 }
3190
3191                 qp = &phba->sli4_hba.hdwq[i];
3192                 qp->p_multixri_pool = multixri_pool;
3193
3194                 multixri_pool->xri_limit = count_per_hwq;
3195                 multixri_pool->rrb_next_hwqid = i;
3196
3197                 /* Deal with public free xri pool */
3198                 pbl_pool = &multixri_pool->pbl_pool;
3199                 spin_lock_init(&pbl_pool->lock);
3200                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3201                 spin_lock(&pbl_pool->lock);
3202                 INIT_LIST_HEAD(&pbl_pool->list);
3203                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3204                                          &qp->lpfc_io_buf_list_put, list) {
3205                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3206                         qp->put_io_bufs--;
3207                         pbl_pool->count++;
3208                 }
3209                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3210                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3211                                 pbl_pool->count, i);
3212                 spin_unlock(&pbl_pool->lock);
3213                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3214
3215                 /* Deal with private free xri pool */
3216                 pvt_pool = &multixri_pool->pvt_pool;
3217                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3218                 pvt_pool->low_watermark = XRI_BATCH;
3219                 spin_lock_init(&pvt_pool->lock);
3220                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3221                 INIT_LIST_HEAD(&pvt_pool->list);
3222                 pvt_pool->count = 0;
3223                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3224         }
3225 }
3226
3227 /**
3228  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3229  * @phba: pointer to lpfc hba data structure.
3230  *
3231  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3232  **/
3233 void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3234 {
3235         u32 i;
3236         u32 hwq_count;
3237         struct lpfc_io_buf *lpfc_ncmd;
3238         struct lpfc_io_buf *lpfc_ncmd_next;
3239         unsigned long iflag;
3240         struct lpfc_sli4_hdw_queue *qp;
3241         struct lpfc_multixri_pool *multixri_pool;
3242         struct lpfc_pbl_pool *pbl_pool;
3243         struct lpfc_pvt_pool *pvt_pool;
3244
3245         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3246                 lpfc_destroy_expedite_pool(phba);
3247
3248         hwq_count = phba->cfg_hdw_queue;
3249
3250         for (i = 0; i < hwq_count; i++) {
3251                 qp = &phba->sli4_hba.hdwq[i];
3252                 multixri_pool = qp->p_multixri_pool;
3253                 if (!multixri_pool)
3254                         continue;
3255
3256                 qp->p_multixri_pool = NULL;
3257
3258                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3259
3260                 /* Deal with public free xri pool */
3261                 pbl_pool = &multixri_pool->pbl_pool;
3262                 spin_lock(&pbl_pool->lock);
3263
3264                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3265                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3266                                 pbl_pool->count, i);
3267
3268                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3269                                          &pbl_pool->list, list) {
3270                         list_move_tail(&lpfc_ncmd->list,
3271                                        &qp->lpfc_io_buf_list_put);
3272                         qp->put_io_bufs++;
3273                         pbl_pool->count--;
3274                 }
3275
3276                 INIT_LIST_HEAD(&pbl_pool->list);
3277                 pbl_pool->count = 0;
3278
3279                 spin_unlock(&pbl_pool->lock);
3280
3281                 /* Deal with private free xri pool */
3282                 pvt_pool = &multixri_pool->pvt_pool;
3283                 spin_lock(&pvt_pool->lock);
3284
3285                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3286                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3287                                 pvt_pool->count, i);
3288
3289                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3290                                          &pvt_pool->list, list) {
3291                         list_move_tail(&lpfc_ncmd->list,
3292                                        &qp->lpfc_io_buf_list_put);
3293                         qp->put_io_bufs++;
3294                         pvt_pool->count--;
3295                 }
3296
3297                 INIT_LIST_HEAD(&pvt_pool->list);
3298                 pvt_pool->count = 0;
3299
3300                 spin_unlock(&pvt_pool->lock);
3301                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3302
3303                 kfree(multixri_pool);
3304         }
3305 }
3306
3307 /**
3308  * lpfc_online - Initialize and bring a HBA online
3309  * @phba: pointer to lpfc hba data structure.
3310  *
3311  * This routine initializes the HBA and brings a HBA online. During this
3312  * process, the management interface is blocked to prevent user space access
3313  * to the HBA interfering with the driver initialization.
3314  *
3315  * Return codes
3316  *   0 - successful
3317  *   1 - failed
3318  **/
3319 int
3320 lpfc_online(struct lpfc_hba *phba)
3321 {
3322         struct lpfc_vport *vport;
3323         struct lpfc_vport **vports;
3324         int i, error = 0;
3325         bool vpis_cleared = false;
3326
3327         if (!phba)
3328                 return 0;
3329         vport = phba->pport;
3330
3331         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3332                 return 0;
3333
3334         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3335                         "0458 Bring Adapter online\n");
3336
3337         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3338
3339         if (phba->sli_rev == LPFC_SLI_REV4) {
3340                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3341                         lpfc_unblock_mgmt_io(phba);
3342                         return 1;
3343                 }
3344                 spin_lock_irq(&phba->hbalock);
3345                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3346                         vpis_cleared = true;
3347                 spin_unlock_irq(&phba->hbalock);
3348
3349                 /* Reestablish the local initiator port.
3350                  * The offline process destroyed the previous lport.
3351                  */
3352                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3353                                 !phba->nvmet_support) {
3354                         error = lpfc_nvme_create_localport(phba->pport);
3355                         if (error)
3356                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3357                                         "6132 NVME restore reg failed "
3358                                         "on nvmei error x%x\n", error);
3359                 }
3360         } else {
3361                 lpfc_sli_queue_init(phba);
3362                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3363                         lpfc_unblock_mgmt_io(phba);
3364                         return 1;
3365                 }
3366         }
3367
3368         vports = lpfc_create_vport_work_array(phba);
3369         if (vports != NULL) {
3370                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3371                         struct Scsi_Host *shost;
3372                         shost = lpfc_shost_from_vport(vports[i]);
3373                         spin_lock_irq(shost->host_lock);
3374                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3375                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3376                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3377                         if (phba->sli_rev == LPFC_SLI_REV4) {
3378                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3379                                 if ((vpis_cleared) &&
3380                                     (vports[i]->port_type !=
3381                                         LPFC_PHYSICAL_PORT))
3382                                         vports[i]->vpi = 0;
3383                         }
3384                         spin_unlock_irq(shost->host_lock);
3385                 }
3386         }
3387         lpfc_destroy_vport_work_array(phba, vports);
3388
3389         if (phba->cfg_xri_rebalancing)
3390                 lpfc_create_multixri_pools(phba);
3391
3392         lpfc_unblock_mgmt_io(phba);
3393         return 0;
3394 }
3395
3396 /**
3397  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3398  * @phba: pointer to lpfc hba data structure.
3399  *
3400  * This routine marks a HBA's management interface as not blocked. Once the
3401  * HBA's management interface is marked as not blocked, all the user space
3402  * access to the HBA, whether they are from sysfs interface or libdfc
3403  * interface will be allowed. The HBA is set to block the management interface
3404  * when the driver prepares the HBA interface for online or offline and then
3405  * set to unblock the management interface afterwards.
3406  **/
3407 void
3408 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3409 {
3410         unsigned long iflag;
3411
3412         spin_lock_irqsave(&phba->hbalock, iflag);
3413         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3414         spin_unlock_irqrestore(&phba->hbalock, iflag);
3415 }
3416
3417 /**
3418  * lpfc_offline_prep - Prepare a HBA to be brought offline
3419  * @phba: pointer to lpfc hba data structure.
3420  *
3421  * This routine is invoked to prepare a HBA to be brought offline. It performs
3422  * unregistration login to all the nodes on all vports and flushes the mailbox
3423  * queue to make it ready to be brought offline.
3424  **/
3425 void
3426 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3427 {
3428         struct lpfc_vport *vport = phba->pport;
3429         struct lpfc_nodelist  *ndlp, *next_ndlp;
3430         struct lpfc_vport **vports;
3431         struct Scsi_Host *shost;
3432         int i;
3433
3434         if (vport->fc_flag & FC_OFFLINE_MODE)
3435                 return;
3436
3437         lpfc_block_mgmt_io(phba, mbx_action);
3438
3439         lpfc_linkdown(phba);
3440
3441         /* Issue an unreg_login to all nodes on all vports */
3442         vports = lpfc_create_vport_work_array(phba);
3443         if (vports != NULL) {
3444                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3445                         if (vports[i]->load_flag & FC_UNLOADING)
3446                                 continue;
3447                         shost = lpfc_shost_from_vport(vports[i]);
3448                         spin_lock_irq(shost->host_lock);
3449                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3450                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3451                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3452                         spin_unlock_irq(shost->host_lock);
3453
3454                         shost = lpfc_shost_from_vport(vports[i]);
3455                         list_for_each_entry_safe(ndlp, next_ndlp,
3456                                                  &vports[i]->fc_nodes,
3457                                                  nlp_listp) {
3458                                 if (!NLP_CHK_NODE_ACT(ndlp))
3459                                         continue;
3460                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3461                                         continue;
3462                                 if (ndlp->nlp_type & NLP_FABRIC) {
3463                                         lpfc_disc_state_machine(vports[i], ndlp,
3464                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3465                                         lpfc_disc_state_machine(vports[i], ndlp,
3466                                                 NULL, NLP_EVT_DEVICE_RM);
3467                                 }
3468                                 spin_lock_irq(shost->host_lock);
3469                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3470                                 spin_unlock_irq(shost->host_lock);
3471                                 /*
3472                                  * Whenever an SLI4 port goes offline, free the
3473                                  * RPI. Get a new RPI when the adapter port
3474                                  * comes back online.
3475                                  */
3476                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3477                                         lpfc_printf_vlog(ndlp->vport,
3478                                                          KERN_INFO, LOG_NODE,
3479                                                          "0011 lpfc_offline: "
3480                                                          "ndlp:x%p did %x "
3481                                                          "usgmap:x%x rpi:%x\n",
3482                                                          ndlp, ndlp->nlp_DID,
3483                                                          ndlp->nlp_usg_map,
3484                                                          ndlp->nlp_rpi);
3485
3486                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3487                                 }
3488                                 lpfc_unreg_rpi(vports[i], ndlp);
3489                         }
3490                 }
3491         }
3492         lpfc_destroy_vport_work_array(phba, vports);
3493
3494         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3495
3496         if (phba->wq)
3497                 flush_workqueue(phba->wq);
3498 }
3499
3500 /**
3501  * lpfc_offline - Bring a HBA offline
3502  * @phba: pointer to lpfc hba data structure.
3503  *
3504  * This routine actually brings a HBA offline. It stops all the timers
3505  * associated with the HBA, brings down the SLI layer, and eventually
3506  * marks the HBA as in offline state for the upper layer protocol.
3507  **/
3508 void
3509 lpfc_offline(struct lpfc_hba *phba)
3510 {
3511         struct Scsi_Host  *shost;
3512         struct lpfc_vport **vports;
3513         int i;
3514
3515         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3516                 return;
3517
3518         /* stop port and all timers associated with this hba */
3519         lpfc_stop_port(phba);
3520
3521         /* Tear down the local and target port registrations.  The
3522          * nvme transports need to cleanup.
3523          */
3524         lpfc_nvmet_destroy_targetport(phba);
3525         lpfc_nvme_destroy_localport(phba->pport);
3526
3527         vports = lpfc_create_vport_work_array(phba);
3528         if (vports != NULL)
3529                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3530                         lpfc_stop_vport_timers(vports[i]);
3531         lpfc_destroy_vport_work_array(phba, vports);
3532         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3533                         "0460 Bring Adapter offline\n");
3534         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3535            now.  */
3536         lpfc_sli_hba_down(phba);
3537         spin_lock_irq(&phba->hbalock);
3538         phba->work_ha = 0;
3539         spin_unlock_irq(&phba->hbalock);
3540         vports = lpfc_create_vport_work_array(phba);
3541         if (vports != NULL)
3542                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3543                         shost = lpfc_shost_from_vport(vports[i]);
3544                         spin_lock_irq(shost->host_lock);
3545                         vports[i]->work_port_events = 0;
3546                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3547                         spin_unlock_irq(shost->host_lock);
3548                 }
3549         lpfc_destroy_vport_work_array(phba, vports);
3550
3551         if (phba->cfg_xri_rebalancing)
3552                 lpfc_destroy_multixri_pools(phba);
3553 }
3554
3555 /**
3556  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3557  * @phba: pointer to lpfc hba data structure.
3558  *
3559  * This routine is to free all the SCSI buffers and IOCBs from the driver
3560  * list back to kernel. It is called from lpfc_pci_remove_one to free
3561  * the internal resources before the device is removed from the system.
3562  **/
3563 static void
3564 lpfc_scsi_free(struct lpfc_hba *phba)
3565 {
3566         struct lpfc_io_buf *sb, *sb_next;
3567
3568         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3569                 return;
3570
3571         spin_lock_irq(&phba->hbalock);
3572
3573         /* Release all the lpfc_scsi_bufs maintained by this host. */
3574
3575         spin_lock(&phba->scsi_buf_list_put_lock);
3576         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3577                                  list) {
3578                 list_del(&sb->list);
3579                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3580                               sb->dma_handle);
3581                 kfree(sb);
3582                 phba->total_scsi_bufs--;
3583         }
3584         spin_unlock(&phba->scsi_buf_list_put_lock);
3585
3586         spin_lock(&phba->scsi_buf_list_get_lock);
3587         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3588                                  list) {
3589                 list_del(&sb->list);
3590                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3591                               sb->dma_handle);
3592                 kfree(sb);
3593                 phba->total_scsi_bufs--;
3594         }
3595         spin_unlock(&phba->scsi_buf_list_get_lock);
3596         spin_unlock_irq(&phba->hbalock);
3597 }
3598
3599 /**
3600  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3601  * @phba: pointer to lpfc hba data structure.
3602  *
3603  * This routine is to free all the IO buffers and IOCBs from the driver
3604  * list back to kernel. It is called from lpfc_pci_remove_one to free
3605  * the internal resources before the device is removed from the system.
3606  **/
3607 void
3608 lpfc_io_free(struct lpfc_hba *phba)
3609 {
3610         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3611         struct lpfc_sli4_hdw_queue *qp;
3612         int idx;
3613
3614         spin_lock_irq(&phba->hbalock);
3615
3616         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3617                 qp = &phba->sli4_hba.hdwq[idx];
3618                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3619                 spin_lock(&qp->io_buf_list_put_lock);
3620                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3621                                          &qp->lpfc_io_buf_list_put,
3622                                          list) {
3623                         list_del(&lpfc_ncmd->list);
3624                         qp->put_io_bufs--;
3625                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3626                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3627                         kfree(lpfc_ncmd);
3628                         qp->total_io_bufs--;
3629                 }
3630                 spin_unlock(&qp->io_buf_list_put_lock);
3631
3632                 spin_lock(&qp->io_buf_list_get_lock);
3633                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3634                                          &qp->lpfc_io_buf_list_get,
3635                                          list) {
3636                         list_del(&lpfc_ncmd->list);
3637                         qp->get_io_bufs--;
3638                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3639                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3640                         kfree(lpfc_ncmd);
3641                         qp->total_io_bufs--;
3642                 }
3643                 spin_unlock(&qp->io_buf_list_get_lock);
3644         }
3645
3646         spin_unlock_irq(&phba->hbalock);
3647 }
3648
3649 /**
3650  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3651  * @phba: pointer to lpfc hba data structure.
3652  *
3653  * This routine first calculates the sizes of the current els and allocated
3654  * scsi sgl lists, and then goes through all sgls to updates the physical
3655  * XRIs assigned due to port function reset. During port initialization, the
3656  * current els and allocated scsi sgl lists are 0s.
3657  *
3658  * Return codes
3659  *   0 - successful (for now, it always returns 0)
3660  **/
3661 int
3662 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3663 {
3664         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3665         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3666         LIST_HEAD(els_sgl_list);
3667         int rc;
3668
3669         /*
3670          * update on pci function's els xri-sgl list
3671          */
3672         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673
3674         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3675                 /* els xri-sgl expanded */
3676                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3677                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                                 "3157 ELS xri-sgl count increased from "
3679                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3680                                 els_xri_cnt);
3681                 /* allocate the additional els sgls */
3682                 for (i = 0; i < xri_cnt; i++) {
3683                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3684                                              GFP_KERNEL);
3685                         if (sglq_entry == NULL) {
3686                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3687                                                 "2562 Failure to allocate an "
3688                                                 "ELS sgl entry:%d\n", i);
3689                                 rc = -ENOMEM;
3690                                 goto out_free_mem;
3691                         }
3692                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3693                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3694                                                            &sglq_entry->phys);
3695                         if (sglq_entry->virt == NULL) {
3696                                 kfree(sglq_entry);
3697                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3698                                                 "2563 Failure to allocate an "
3699                                                 "ELS mbuf:%d\n", i);
3700                                 rc = -ENOMEM;
3701                                 goto out_free_mem;
3702                         }
3703                         sglq_entry->sgl = sglq_entry->virt;
3704                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3705                         sglq_entry->state = SGL_FREED;
3706                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3707                 }
3708                 spin_lock_irq(&phba->hbalock);
3709                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3710                 list_splice_init(&els_sgl_list,
3711                                  &phba->sli4_hba.lpfc_els_sgl_list);
3712                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3713                 spin_unlock_irq(&phba->hbalock);
3714         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3715                 /* els xri-sgl shrinked */
3716                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3717                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3718                                 "3158 ELS xri-sgl count decreased from "
3719                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3720                                 els_xri_cnt);
3721                 spin_lock_irq(&phba->hbalock);
3722                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3723                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3724                                  &els_sgl_list);
3725                 /* release extra els sgls from list */
3726                 for (i = 0; i < xri_cnt; i++) {
3727                         list_remove_head(&els_sgl_list,
3728                                          sglq_entry, struct lpfc_sglq, list);
3729                         if (sglq_entry) {
3730                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3731                                                  sglq_entry->phys);
3732                                 kfree(sglq_entry);
3733                         }
3734                 }
3735                 list_splice_init(&els_sgl_list,
3736                                  &phba->sli4_hba.lpfc_els_sgl_list);
3737                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3738                 spin_unlock_irq(&phba->hbalock);
3739         } else
3740                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                 "3163 ELS xri-sgl count unchanged: %d\n",
3742                                 els_xri_cnt);
3743         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3744
3745         /* update xris to els sgls on the list */
3746         sglq_entry = NULL;
3747         sglq_entry_next = NULL;
3748         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3749                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3750                 lxri = lpfc_sli4_next_xritag(phba);
3751                 if (lxri == NO_XRI) {
3752                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                         "2400 Failed to allocate xri for "
3754                                         "ELS sgl\n");
3755                         rc = -ENOMEM;
3756                         goto out_free_mem;
3757                 }
3758                 sglq_entry->sli4_lxritag = lxri;
3759                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3760         }
3761         return 0;
3762
3763 out_free_mem:
3764         lpfc_free_els_sgl_list(phba);
3765         return rc;
3766 }
3767
3768 /**
3769  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3770  * @phba: pointer to lpfc hba data structure.
3771  *
3772  * This routine first calculates the sizes of the current els and allocated
3773  * scsi sgl lists, and then goes through all sgls to updates the physical
3774  * XRIs assigned due to port function reset. During port initialization, the
3775  * current els and allocated scsi sgl lists are 0s.
3776  *
3777  * Return codes
3778  *   0 - successful (for now, it always returns 0)
3779  **/
3780 int
3781 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3782 {
3783         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3784         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3785         uint16_t nvmet_xri_cnt;
3786         LIST_HEAD(nvmet_sgl_list);
3787         int rc;
3788
3789         /*
3790          * update on pci function's nvmet xri-sgl list
3791          */
3792         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3793
3794         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3795         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3796         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3797                 /* els xri-sgl expanded */
3798                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3799                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3800                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3801                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3802                 /* allocate the additional nvmet sgls */
3803                 for (i = 0; i < xri_cnt; i++) {
3804                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3805                                              GFP_KERNEL);
3806                         if (sglq_entry == NULL) {
3807                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3808                                                 "6303 Failure to allocate an "
3809                                                 "NVMET sgl entry:%d\n", i);
3810                                 rc = -ENOMEM;
3811                                 goto out_free_mem;
3812                         }
3813                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3814                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3815                                                            &sglq_entry->phys);
3816                         if (sglq_entry->virt == NULL) {
3817                                 kfree(sglq_entry);
3818                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3819                                                 "6304 Failure to allocate an "
3820                                                 "NVMET buf:%d\n", i);
3821                                 rc = -ENOMEM;
3822                                 goto out_free_mem;
3823                         }
3824                         sglq_entry->sgl = sglq_entry->virt;
3825                         memset(sglq_entry->sgl, 0,
3826                                phba->cfg_sg_dma_buf_size);
3827                         sglq_entry->state = SGL_FREED;
3828                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3829                 }
3830                 spin_lock_irq(&phba->hbalock);
3831                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3832                 list_splice_init(&nvmet_sgl_list,
3833                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3834                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3835                 spin_unlock_irq(&phba->hbalock);
3836         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3837                 /* nvmet xri-sgl shrunk */
3838                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3839                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3840                                 "6305 NVMET xri-sgl count decreased from "
3841                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3842                                 nvmet_xri_cnt);
3843                 spin_lock_irq(&phba->hbalock);
3844                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3845                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3846                                  &nvmet_sgl_list);
3847                 /* release extra nvmet sgls from list */
3848                 for (i = 0; i < xri_cnt; i++) {
3849                         list_remove_head(&nvmet_sgl_list,
3850                                          sglq_entry, struct lpfc_sglq, list);
3851                         if (sglq_entry) {
3852                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3853                                                     sglq_entry->phys);
3854                                 kfree(sglq_entry);
3855                         }
3856                 }
3857                 list_splice_init(&nvmet_sgl_list,
3858                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3859                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3860                 spin_unlock_irq(&phba->hbalock);
3861         } else
3862                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3863                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3864                                 nvmet_xri_cnt);
3865         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3866
3867         /* update xris to nvmet sgls on the list */
3868         sglq_entry = NULL;
3869         sglq_entry_next = NULL;
3870         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3871                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3872                 lxri = lpfc_sli4_next_xritag(phba);
3873                 if (lxri == NO_XRI) {
3874                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3875                                         "6307 Failed to allocate xri for "
3876                                         "NVMET sgl\n");
3877                         rc = -ENOMEM;
3878                         goto out_free_mem;
3879                 }
3880                 sglq_entry->sli4_lxritag = lxri;
3881                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3882         }
3883         return 0;
3884
3885 out_free_mem:
3886         lpfc_free_nvmet_sgl_list(phba);
3887         return rc;
3888 }
3889
3890 int
3891 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3892 {
3893         LIST_HEAD(blist);
3894         struct lpfc_sli4_hdw_queue *qp;
3895         struct lpfc_io_buf *lpfc_cmd;
3896         struct lpfc_io_buf *iobufp, *prev_iobufp;
3897         int idx, cnt, xri, inserted;
3898
3899         cnt = 0;
3900         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3901                 qp = &phba->sli4_hba.hdwq[idx];
3902                 spin_lock_irq(&qp->io_buf_list_get_lock);
3903                 spin_lock(&qp->io_buf_list_put_lock);
3904
3905                 /* Take everything off the get and put lists */
3906                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3907                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3908                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3909                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3910                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3911                 qp->get_io_bufs = 0;
3912                 qp->put_io_bufs = 0;
3913                 qp->total_io_bufs = 0;
3914                 spin_unlock(&qp->io_buf_list_put_lock);
3915                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3916         }
3917
3918         /*
3919          * Take IO buffers off blist and put on cbuf sorted by XRI.
3920          * This is because POST_SGL takes a sequential range of XRIs
3921          * to post to the firmware.
3922          */
3923         for (idx = 0; idx < cnt; idx++) {
3924                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3925                 if (!lpfc_cmd)
3926                         return cnt;
3927                 if (idx == 0) {
3928                         list_add_tail(&lpfc_cmd->list, cbuf);
3929                         continue;
3930                 }
3931                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3932                 inserted = 0;
3933                 prev_iobufp = NULL;
3934                 list_for_each_entry(iobufp, cbuf, list) {
3935                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3936                                 if (prev_iobufp)
3937                                         list_add(&lpfc_cmd->list,
3938                                                  &prev_iobufp->list);
3939                                 else
3940                                         list_add(&lpfc_cmd->list, cbuf);
3941                                 inserted = 1;
3942                                 break;
3943                         }
3944                         prev_iobufp = iobufp;
3945                 }
3946                 if (!inserted)
3947                         list_add_tail(&lpfc_cmd->list, cbuf);
3948         }
3949         return cnt;
3950 }
3951
3952 int
3953 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3954 {
3955         struct lpfc_sli4_hdw_queue *qp;
3956         struct lpfc_io_buf *lpfc_cmd;
3957         int idx, cnt;
3958
3959         qp = phba->sli4_hba.hdwq;
3960         cnt = 0;
3961         while (!list_empty(cbuf)) {
3962                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3963                         list_remove_head(cbuf, lpfc_cmd,
3964                                          struct lpfc_io_buf, list);
3965                         if (!lpfc_cmd)
3966                                 return cnt;
3967                         cnt++;
3968                         qp = &phba->sli4_hba.hdwq[idx];
3969                         lpfc_cmd->hdwq_no = idx;
3970                         lpfc_cmd->hdwq = qp;
3971                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3972                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3973                         spin_lock(&qp->io_buf_list_put_lock);
3974                         list_add_tail(&lpfc_cmd->list,
3975                                       &qp->lpfc_io_buf_list_put);
3976                         qp->put_io_bufs++;
3977                         qp->total_io_bufs++;
3978                         spin_unlock(&qp->io_buf_list_put_lock);
3979                 }
3980         }
3981         return cnt;
3982 }
3983
3984 /**
3985  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3986  * @phba: pointer to lpfc hba data structure.
3987  *
3988  * This routine first calculates the sizes of the current els and allocated
3989  * scsi sgl lists, and then goes through all sgls to updates the physical
3990  * XRIs assigned due to port function reset. During port initialization, the
3991  * current els and allocated scsi sgl lists are 0s.
3992  *
3993  * Return codes
3994  *   0 - successful (for now, it always returns 0)
3995  **/
3996 int
3997 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3998 {
3999         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4000         uint16_t i, lxri, els_xri_cnt;
4001         uint16_t io_xri_cnt, io_xri_max;
4002         LIST_HEAD(io_sgl_list);
4003         int rc, cnt;
4004
4005         /*
4006          * update on pci function's allocated nvme xri-sgl list
4007          */
4008
4009         /* maximum number of xris available for nvme buffers */
4010         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4011         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4012         phba->sli4_hba.io_xri_max = io_xri_max;
4013
4014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                         "6074 Current allocated XRI sgl count:%d, "
4016                         "maximum XRI count:%d\n",
4017                         phba->sli4_hba.io_xri_cnt,
4018                         phba->sli4_hba.io_xri_max);
4019
4020         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4021
4022         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4023                 /* max nvme xri shrunk below the allocated nvme buffers */
4024                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4025                                         phba->sli4_hba.io_xri_max;
4026                 /* release the extra allocated nvme buffers */
4027                 for (i = 0; i < io_xri_cnt; i++) {
4028                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4029                                          struct lpfc_io_buf, list);
4030                         if (lpfc_ncmd) {
4031                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4032                                               lpfc_ncmd->data,
4033                                               lpfc_ncmd->dma_handle);
4034                                 kfree(lpfc_ncmd);
4035                         }
4036                 }
4037                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4038         }
4039
4040         /* update xris associated to remaining allocated nvme buffers */
4041         lpfc_ncmd = NULL;
4042         lpfc_ncmd_next = NULL;
4043         phba->sli4_hba.io_xri_cnt = cnt;
4044         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4045                                  &io_sgl_list, list) {
4046                 lxri = lpfc_sli4_next_xritag(phba);
4047                 if (lxri == NO_XRI) {
4048                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049                                         "6075 Failed to allocate xri for "
4050                                         "nvme buffer\n");
4051                         rc = -ENOMEM;
4052                         goto out_free_mem;
4053                 }
4054                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4055                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4056         }
4057         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4058         return 0;
4059
4060 out_free_mem:
4061         lpfc_io_free(phba);
4062         return rc;
4063 }
4064
4065 /**
4066  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4067  * @vport: The virtual port for which this call being executed.
4068  * @num_to_allocate: The requested number of buffers to allocate.
4069  *
4070  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4071  * the nvme buffer contains all the necessary information needed to initiate
4072  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4073  * them on a list, it post them to the port by using SGL block post.
4074  *
4075  * Return codes:
4076  *   int - number of IO buffers that were allocated and posted.
4077  *   0 = failure, less than num_to_alloc is a partial failure.
4078  **/
4079 int
4080 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4081 {
4082         struct lpfc_io_buf *lpfc_ncmd;
4083         struct lpfc_iocbq *pwqeq;
4084         uint16_t iotag, lxri = 0;
4085         int bcnt, num_posted;
4086         LIST_HEAD(prep_nblist);
4087         LIST_HEAD(post_nblist);
4088         LIST_HEAD(nvme_nblist);
4089
4090         /* Sanity check to ensure our sizing is right for both SCSI and NVME */
4091         if (sizeof(struct lpfc_io_buf) > LPFC_COMMON_IO_BUF_SZ) {
4092                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4093                                 "6426 Common buffer size %ld exceeds %d\n",
4094                                 sizeof(struct lpfc_io_buf),
4095                                 LPFC_COMMON_IO_BUF_SZ);
4096                 return 0;
4097         }
4098
4099         phba->sli4_hba.io_xri_cnt = 0;
4100         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4101                 lpfc_ncmd = kzalloc(LPFC_COMMON_IO_BUF_SZ, GFP_KERNEL);
4102                 if (!lpfc_ncmd)
4103                         break;
4104                 /*
4105                  * Get memory from the pci pool to map the virt space to
4106                  * pci bus space for an I/O. The DMA buffer includes the
4107                  * number of SGE's necessary to support the sg_tablesize.
4108                  */
4109                 lpfc_ncmd->data = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
4110                                 GFP_KERNEL,
4111                                 &lpfc_ncmd->dma_handle);
4112                 if (!lpfc_ncmd->data) {
4113                         kfree(lpfc_ncmd);
4114                         break;
4115                 }
4116                 memset(lpfc_ncmd->data, 0, phba->cfg_sg_dma_buf_size);
4117
4118                 /*
4119                  * 4K Page alignment is CRITICAL to BlockGuard, double check
4120                  * to be sure.
4121                  */
4122                 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4123                     (((unsigned long)(lpfc_ncmd->data) &
4124                     (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4125                         lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4126                                         "3369 Memory alignment err: addr=%lx\n",
4127                                         (unsigned long)lpfc_ncmd->data);
4128                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4129                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4130                         kfree(lpfc_ncmd);
4131                         break;
4132                 }
4133
4134                 lxri = lpfc_sli4_next_xritag(phba);
4135                 if (lxri == NO_XRI) {
4136                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4137                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4138                         kfree(lpfc_ncmd);
4139                         break;
4140                 }
4141                 pwqeq = &lpfc_ncmd->cur_iocbq;
4142
4143                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4144                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4145                 if (iotag == 0) {
4146                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4147                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4148                         kfree(lpfc_ncmd);
4149                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4150                                         "6121 Failed to allocate IOTAG for"
4151                                         " XRI:0x%x\n", lxri);
4152                         lpfc_sli4_free_xri(phba, lxri);
4153                         break;
4154                 }
4155                 pwqeq->sli4_lxritag = lxri;
4156                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4157                 pwqeq->context1 = lpfc_ncmd;
4158
4159                 /* Initialize local short-hand pointers. */
4160                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4161                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4162                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4163
4164                 /* add the nvme buffer to a post list */
4165                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4166                 phba->sli4_hba.io_xri_cnt++;
4167         }
4168         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4169                         "6114 Allocate %d out of %d requested new NVME "
4170                         "buffers\n", bcnt, num_to_alloc);
4171
4172         /* post the list of nvme buffer sgls to port if available */
4173         if (!list_empty(&post_nblist))
4174                 num_posted = lpfc_sli4_post_io_sgl_list(
4175                                 phba, &post_nblist, bcnt);
4176         else
4177                 num_posted = 0;
4178
4179         return num_posted;
4180 }
4181
4182 static uint64_t
4183 lpfc_get_wwpn(struct lpfc_hba *phba)
4184 {
4185         uint64_t wwn;
4186         int rc;
4187         LPFC_MBOXQ_t *mboxq;
4188         MAILBOX_t *mb;
4189
4190         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4191                                                 GFP_KERNEL);
4192         if (!mboxq)
4193                 return (uint64_t)-1;
4194
4195         /* First get WWN of HBA instance */
4196         lpfc_read_nv(phba, mboxq);
4197         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4198         if (rc != MBX_SUCCESS) {
4199                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4200                                 "6019 Mailbox failed , mbxCmd x%x "
4201                                 "READ_NV, mbxStatus x%x\n",
4202                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4203                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4204                 mempool_free(mboxq, phba->mbox_mem_pool);
4205                 return (uint64_t) -1;
4206         }
4207         mb = &mboxq->u.mb;
4208         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4209         /* wwn is WWPN of HBA instance */
4210         mempool_free(mboxq, phba->mbox_mem_pool);
4211         if (phba->sli_rev == LPFC_SLI_REV4)
4212                 return be64_to_cpu(wwn);
4213         else
4214                 return rol64(wwn, 32);
4215 }
4216
4217 /**
4218  * lpfc_create_port - Create an FC port
4219  * @phba: pointer to lpfc hba data structure.
4220  * @instance: a unique integer ID to this FC port.
4221  * @dev: pointer to the device data structure.
4222  *
4223  * This routine creates a FC port for the upper layer protocol. The FC port
4224  * can be created on top of either a physical port or a virtual port provided
4225  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4226  * and associates the FC port created before adding the shost into the SCSI
4227  * layer.
4228  *
4229  * Return codes
4230  *   @vport - pointer to the virtual N_Port data structure.
4231  *   NULL - port create failed.
4232  **/
4233 struct lpfc_vport *
4234 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4235 {
4236         struct lpfc_vport *vport;
4237         struct Scsi_Host  *shost = NULL;
4238         int error = 0;
4239         int i;
4240         uint64_t wwn;
4241         bool use_no_reset_hba = false;
4242         int rc;
4243
4244         if (lpfc_no_hba_reset_cnt) {
4245                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4246                     dev == &phba->pcidev->dev) {
4247                         /* Reset the port first */
4248                         lpfc_sli_brdrestart(phba);
4249                         rc = lpfc_sli_chipset_init(phba);
4250                         if (rc)
4251                                 return NULL;
4252                 }
4253                 wwn = lpfc_get_wwpn(phba);
4254         }
4255
4256         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4257                 if (wwn == lpfc_no_hba_reset[i]) {
4258                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4259                                         "6020 Setting use_no_reset port=%llx\n",
4260                                         wwn);
4261                         use_no_reset_hba = true;
4262                         break;
4263                 }
4264         }
4265
4266         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4267                 if (dev != &phba->pcidev->dev) {
4268                         shost = scsi_host_alloc(&lpfc_vport_template,
4269                                                 sizeof(struct lpfc_vport));
4270                 } else {
4271                         if (!use_no_reset_hba)
4272                                 shost = scsi_host_alloc(&lpfc_template,
4273                                                 sizeof(struct lpfc_vport));
4274                         else
4275                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4276                                                 sizeof(struct lpfc_vport));
4277                 }
4278         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4279                 shost = scsi_host_alloc(&lpfc_template_nvme,
4280                                         sizeof(struct lpfc_vport));
4281         }
4282         if (!shost)
4283                 goto out;
4284
4285         vport = (struct lpfc_vport *) shost->hostdata;
4286         vport->phba = phba;
4287         vport->load_flag |= FC_LOADING;
4288         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4289         vport->fc_rscn_flush = 0;
4290         lpfc_get_vport_cfgparam(vport);
4291
4292         shost->unique_id = instance;
4293         shost->max_id = LPFC_MAX_TARGET;
4294         shost->max_lun = vport->cfg_max_luns;
4295         shost->this_id = -1;
4296         shost->max_cmd_len = 16;
4297
4298         if (phba->sli_rev == LPFC_SLI_REV4) {
4299                 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ)
4300                         shost->nr_hw_queues = phba->cfg_hdw_queue;
4301                 else
4302                         shost->nr_hw_queues = phba->sli4_hba.num_present_cpu;
4303
4304                 shost->dma_boundary =
4305                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4306                 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4307         } else
4308                 /* SLI-3 has a limited number of hardware queues (3),
4309                  * thus there is only one for FCP processing.
4310                  */
4311                 shost->nr_hw_queues = 1;
4312
4313         /*
4314          * Set initial can_queue value since 0 is no longer supported and
4315          * scsi_add_host will fail. This will be adjusted later based on the
4316          * max xri value determined in hba setup.
4317          */
4318         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4319         if (dev != &phba->pcidev->dev) {
4320                 shost->transportt = lpfc_vport_transport_template;
4321                 vport->port_type = LPFC_NPIV_PORT;
4322         } else {
4323                 shost->transportt = lpfc_transport_template;
4324                 vport->port_type = LPFC_PHYSICAL_PORT;
4325         }
4326
4327         /* Initialize all internally managed lists. */
4328         INIT_LIST_HEAD(&vport->fc_nodes);
4329         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4330         spin_lock_init(&vport->work_port_lock);
4331
4332         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4333
4334         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4335
4336         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4337
4338         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4339         if (error)
4340                 goto out_put_shost;
4341
4342         spin_lock_irq(&phba->port_list_lock);
4343         list_add_tail(&vport->listentry, &phba->port_list);
4344         spin_unlock_irq(&phba->port_list_lock);
4345         return vport;
4346
4347 out_put_shost:
4348         scsi_host_put(shost);
4349 out:
4350         return NULL;
4351 }
4352
4353 /**
4354  * destroy_port -  destroy an FC port
4355  * @vport: pointer to an lpfc virtual N_Port data structure.
4356  *
4357  * This routine destroys a FC port from the upper layer protocol. All the
4358  * resources associated with the port are released.
4359  **/
4360 void
4361 destroy_port(struct lpfc_vport *vport)
4362 {
4363         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4364         struct lpfc_hba  *phba = vport->phba;
4365
4366         lpfc_debugfs_terminate(vport);
4367         fc_remove_host(shost);
4368         scsi_remove_host(shost);
4369
4370         spin_lock_irq(&phba->port_list_lock);
4371         list_del_init(&vport->listentry);
4372         spin_unlock_irq(&phba->port_list_lock);
4373
4374         lpfc_cleanup(vport);
4375         return;
4376 }
4377
4378 /**
4379  * lpfc_get_instance - Get a unique integer ID
4380  *
4381  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4382  * uses the kernel idr facility to perform the task.
4383  *
4384  * Return codes:
4385  *   instance - a unique integer ID allocated as the new instance.
4386  *   -1 - lpfc get instance failed.
4387  **/
4388 int
4389 lpfc_get_instance(void)
4390 {
4391         int ret;
4392
4393         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4394         return ret < 0 ? -1 : ret;
4395 }
4396
4397 /**
4398  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4399  * @shost: pointer to SCSI host data structure.
4400  * @time: elapsed time of the scan in jiffies.
4401  *
4402  * This routine is called by the SCSI layer with a SCSI host to determine
4403  * whether the scan host is finished.
4404  *
4405  * Note: there is no scan_start function as adapter initialization will have
4406  * asynchronously kicked off the link initialization.
4407  *
4408  * Return codes
4409  *   0 - SCSI host scan is not over yet.
4410  *   1 - SCSI host scan is over.
4411  **/
4412 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4413 {
4414         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4415         struct lpfc_hba   *phba = vport->phba;
4416         int stat = 0;
4417
4418         spin_lock_irq(shost->host_lock);
4419
4420         if (vport->load_flag & FC_UNLOADING) {
4421                 stat = 1;
4422                 goto finished;
4423         }
4424         if (time >= msecs_to_jiffies(30 * 1000)) {
4425                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4426                                 "0461 Scanning longer than 30 "
4427                                 "seconds.  Continuing initialization\n");
4428                 stat = 1;
4429                 goto finished;
4430         }
4431         if (time >= msecs_to_jiffies(15 * 1000) &&
4432             phba->link_state <= LPFC_LINK_DOWN) {
4433                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4434                                 "0465 Link down longer than 15 "
4435                                 "seconds.  Continuing initialization\n");
4436                 stat = 1;
4437                 goto finished;
4438         }
4439
4440         if (vport->port_state != LPFC_VPORT_READY)
4441                 goto finished;
4442         if (vport->num_disc_nodes || vport->fc_prli_sent)
4443                 goto finished;
4444         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4445                 goto finished;
4446         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4447                 goto finished;
4448
4449         stat = 1;
4450
4451 finished:
4452         spin_unlock_irq(shost->host_lock);
4453         return stat;
4454 }
4455
4456 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4457 {
4458         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4459         struct lpfc_hba   *phba = vport->phba;
4460
4461         fc_host_supported_speeds(shost) = 0;
4462         if (phba->lmt & LMT_128Gb)
4463                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4464         if (phba->lmt & LMT_64Gb)
4465                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4466         if (phba->lmt & LMT_32Gb)
4467                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4468         if (phba->lmt & LMT_16Gb)
4469                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4470         if (phba->lmt & LMT_10Gb)
4471                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4472         if (phba->lmt & LMT_8Gb)
4473                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4474         if (phba->lmt & LMT_4Gb)
4475                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4476         if (phba->lmt & LMT_2Gb)
4477                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4478         if (phba->lmt & LMT_1Gb)
4479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4480 }
4481
4482 /**
4483  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4484  * @shost: pointer to SCSI host data structure.
4485  *
4486  * This routine initializes a given SCSI host attributes on a FC port. The
4487  * SCSI host can be either on top of a physical port or a virtual port.
4488  **/
4489 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4490 {
4491         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4492         struct lpfc_hba   *phba = vport->phba;
4493         /*
4494          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4495          */
4496
4497         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4498         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4499         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4500
4501         memset(fc_host_supported_fc4s(shost), 0,
4502                sizeof(fc_host_supported_fc4s(shost)));
4503         fc_host_supported_fc4s(shost)[2] = 1;
4504         fc_host_supported_fc4s(shost)[7] = 1;
4505
4506         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4507                                  sizeof fc_host_symbolic_name(shost));
4508
4509         lpfc_host_supported_speeds_set(shost);
4510
4511         fc_host_maxframe_size(shost) =
4512                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4513                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4514
4515         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4516
4517         /* This value is also unchanging */
4518         memset(fc_host_active_fc4s(shost), 0,
4519                sizeof(fc_host_active_fc4s(shost)));
4520         fc_host_active_fc4s(shost)[2] = 1;
4521         fc_host_active_fc4s(shost)[7] = 1;
4522
4523         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4524         spin_lock_irq(shost->host_lock);
4525         vport->load_flag &= ~FC_LOADING;
4526         spin_unlock_irq(shost->host_lock);
4527 }
4528
4529 /**
4530  * lpfc_stop_port_s3 - Stop SLI3 device port
4531  * @phba: pointer to lpfc hba data structure.
4532  *
4533  * This routine is invoked to stop an SLI3 device port, it stops the device
4534  * from generating interrupts and stops the device driver's timers for the
4535  * device.
4536  **/
4537 static void
4538 lpfc_stop_port_s3(struct lpfc_hba *phba)
4539 {
4540         /* Clear all interrupt enable conditions */
4541         writel(0, phba->HCregaddr);
4542         readl(phba->HCregaddr); /* flush */
4543         /* Clear all pending interrupts */
4544         writel(0xffffffff, phba->HAregaddr);
4545         readl(phba->HAregaddr); /* flush */
4546
4547         /* Reset some HBA SLI setup states */
4548         lpfc_stop_hba_timers(phba);
4549         phba->pport->work_port_events = 0;
4550 }
4551
4552 /**
4553  * lpfc_stop_port_s4 - Stop SLI4 device port
4554  * @phba: pointer to lpfc hba data structure.
4555  *
4556  * This routine is invoked to stop an SLI4 device port, it stops the device
4557  * from generating interrupts and stops the device driver's timers for the
4558  * device.
4559  **/
4560 static void
4561 lpfc_stop_port_s4(struct lpfc_hba *phba)
4562 {
4563         /* Reset some HBA SLI4 setup states */
4564         lpfc_stop_hba_timers(phba);
4565         if (phba->pport)
4566                 phba->pport->work_port_events = 0;
4567         phba->sli4_hba.intr_enable = 0;
4568 }
4569
4570 /**
4571  * lpfc_stop_port - Wrapper function for stopping hba port
4572  * @phba: Pointer to HBA context object.
4573  *
4574  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4575  * the API jump table function pointer from the lpfc_hba struct.
4576  **/
4577 void
4578 lpfc_stop_port(struct lpfc_hba *phba)
4579 {
4580         phba->lpfc_stop_port(phba);
4581
4582         if (phba->wq)
4583                 flush_workqueue(phba->wq);
4584 }
4585
4586 /**
4587  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4588  * @phba: Pointer to hba for which this call is being executed.
4589  *
4590  * This routine starts the timer waiting for the FCF rediscovery to complete.
4591  **/
4592 void
4593 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4594 {
4595         unsigned long fcf_redisc_wait_tmo =
4596                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4597         /* Start fcf rediscovery wait period timer */
4598         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4599         spin_lock_irq(&phba->hbalock);
4600         /* Allow action to new fcf asynchronous event */
4601         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4602         /* Mark the FCF rediscovery pending state */
4603         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4604         spin_unlock_irq(&phba->hbalock);
4605 }
4606
4607 /**
4608  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4609  * @ptr: Map to lpfc_hba data structure pointer.
4610  *
4611  * This routine is invoked when waiting for FCF table rediscover has been
4612  * timed out. If new FCF record(s) has (have) been discovered during the
4613  * wait period, a new FCF event shall be added to the FCOE async event
4614  * list, and then worker thread shall be waked up for processing from the
4615  * worker thread context.
4616  **/
4617 static void
4618 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4619 {
4620         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4621
4622         /* Don't send FCF rediscovery event if timer cancelled */
4623         spin_lock_irq(&phba->hbalock);
4624         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4625                 spin_unlock_irq(&phba->hbalock);
4626                 return;
4627         }
4628         /* Clear FCF rediscovery timer pending flag */
4629         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4630         /* FCF rediscovery event to worker thread */
4631         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4632         spin_unlock_irq(&phba->hbalock);
4633         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4634                         "2776 FCF rediscover quiescent timer expired\n");
4635         /* wake up worker thread */
4636         lpfc_worker_wake_up(phba);
4637 }
4638
4639 /**
4640  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4641  * @phba: pointer to lpfc hba data structure.
4642  * @acqe_link: pointer to the async link completion queue entry.
4643  *
4644  * This routine is to parse the SLI4 link-attention link fault code.
4645  **/
4646 static void
4647 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4648                            struct lpfc_acqe_link *acqe_link)
4649 {
4650         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4651         case LPFC_ASYNC_LINK_FAULT_NONE:
4652         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4653         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4654         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4655                 break;
4656         default:
4657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4658                                 "0398 Unknown link fault code: x%x\n",
4659                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4660                 break;
4661         }
4662 }
4663
4664 /**
4665  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4666  * @phba: pointer to lpfc hba data structure.
4667  * @acqe_link: pointer to the async link completion queue entry.
4668  *
4669  * This routine is to parse the SLI4 link attention type and translate it
4670  * into the base driver's link attention type coding.
4671  *
4672  * Return: Link attention type in terms of base driver's coding.
4673  **/
4674 static uint8_t
4675 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4676                           struct lpfc_acqe_link *acqe_link)
4677 {
4678         uint8_t att_type;
4679
4680         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4681         case LPFC_ASYNC_LINK_STATUS_DOWN:
4682         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4683                 att_type = LPFC_ATT_LINK_DOWN;
4684                 break;
4685         case LPFC_ASYNC_LINK_STATUS_UP:
4686                 /* Ignore physical link up events - wait for logical link up */
4687                 att_type = LPFC_ATT_RESERVED;
4688                 break;
4689         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4690                 att_type = LPFC_ATT_LINK_UP;
4691                 break;
4692         default:
4693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4694                                 "0399 Invalid link attention type: x%x\n",
4695                                 bf_get(lpfc_acqe_link_status, acqe_link));
4696                 att_type = LPFC_ATT_RESERVED;
4697                 break;
4698         }
4699         return att_type;
4700 }
4701
4702 /**
4703  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4704  * @phba: pointer to lpfc hba data structure.
4705  *
4706  * This routine is to get an SLI3 FC port's link speed in Mbps.
4707  *
4708  * Return: link speed in terms of Mbps.
4709  **/
4710 uint32_t
4711 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4712 {
4713         uint32_t link_speed;
4714
4715         if (!lpfc_is_link_up(phba))
4716                 return 0;
4717
4718         if (phba->sli_rev <= LPFC_SLI_REV3) {
4719                 switch (phba->fc_linkspeed) {
4720                 case LPFC_LINK_SPEED_1GHZ:
4721                         link_speed = 1000;
4722                         break;
4723                 case LPFC_LINK_SPEED_2GHZ:
4724                         link_speed = 2000;
4725                         break;
4726                 case LPFC_LINK_SPEED_4GHZ:
4727                         link_speed = 4000;
4728                         break;
4729                 case LPFC_LINK_SPEED_8GHZ:
4730                         link_speed = 8000;
4731                         break;
4732                 case LPFC_LINK_SPEED_10GHZ:
4733                         link_speed = 10000;
4734                         break;
4735                 case LPFC_LINK_SPEED_16GHZ:
4736                         link_speed = 16000;
4737                         break;
4738                 default:
4739                         link_speed = 0;
4740                 }
4741         } else {
4742                 if (phba->sli4_hba.link_state.logical_speed)
4743                         link_speed =
4744                               phba->sli4_hba.link_state.logical_speed;
4745                 else
4746                         link_speed = phba->sli4_hba.link_state.speed;
4747         }
4748         return link_speed;
4749 }
4750
4751 /**
4752  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4753  * @phba: pointer to lpfc hba data structure.
4754  * @evt_code: asynchronous event code.
4755  * @speed_code: asynchronous event link speed code.
4756  *
4757  * This routine is to parse the giving SLI4 async event link speed code into
4758  * value of Mbps for the link speed.
4759  *
4760  * Return: link speed in terms of Mbps.
4761  **/
4762 static uint32_t
4763 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4764                            uint8_t speed_code)
4765 {
4766         uint32_t port_speed;
4767
4768         switch (evt_code) {
4769         case LPFC_TRAILER_CODE_LINK:
4770                 switch (speed_code) {
4771                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4772                         port_speed = 0;
4773                         break;
4774                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4775                         port_speed = 10;
4776                         break;
4777                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4778                         port_speed = 100;
4779                         break;
4780                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4781                         port_speed = 1000;
4782                         break;
4783                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4784                         port_speed = 10000;
4785                         break;
4786                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4787                         port_speed = 20000;
4788                         break;
4789                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4790                         port_speed = 25000;
4791                         break;
4792                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4793                         port_speed = 40000;
4794                         break;
4795                 default:
4796                         port_speed = 0;
4797                 }
4798                 break;
4799         case LPFC_TRAILER_CODE_FC:
4800                 switch (speed_code) {
4801                 case LPFC_FC_LA_SPEED_UNKNOWN:
4802                         port_speed = 0;
4803                         break;
4804                 case LPFC_FC_LA_SPEED_1G:
4805                         port_speed = 1000;
4806                         break;
4807                 case LPFC_FC_LA_SPEED_2G:
4808                         port_speed = 2000;
4809                         break;
4810                 case LPFC_FC_LA_SPEED_4G:
4811                         port_speed = 4000;
4812                         break;
4813                 case LPFC_FC_LA_SPEED_8G:
4814                         port_speed = 8000;
4815                         break;
4816                 case LPFC_FC_LA_SPEED_10G:
4817                         port_speed = 10000;
4818                         break;
4819                 case LPFC_FC_LA_SPEED_16G:
4820                         port_speed = 16000;
4821                         break;
4822                 case LPFC_FC_LA_SPEED_32G:
4823                         port_speed = 32000;
4824                         break;
4825                 case LPFC_FC_LA_SPEED_64G:
4826                         port_speed = 64000;
4827                         break;
4828                 case LPFC_FC_LA_SPEED_128G:
4829                         port_speed = 128000;
4830                         break;
4831                 default:
4832                         port_speed = 0;
4833                 }
4834                 break;
4835         default:
4836                 port_speed = 0;
4837         }
4838         return port_speed;
4839 }
4840
4841 /**
4842  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4843  * @phba: pointer to lpfc hba data structure.
4844  * @acqe_link: pointer to the async link completion queue entry.
4845  *
4846  * This routine is to handle the SLI4 asynchronous FCoE link event.
4847  **/
4848 static void
4849 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4850                          struct lpfc_acqe_link *acqe_link)
4851 {
4852         struct lpfc_dmabuf *mp;
4853         LPFC_MBOXQ_t *pmb;
4854         MAILBOX_t *mb;
4855         struct lpfc_mbx_read_top *la;
4856         uint8_t att_type;
4857         int rc;
4858
4859         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4860         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4861                 return;
4862         phba->fcoe_eventtag = acqe_link->event_tag;
4863         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4864         if (!pmb) {
4865                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4866                                 "0395 The mboxq allocation failed\n");
4867                 return;
4868         }
4869         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4870         if (!mp) {
4871                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4872                                 "0396 The lpfc_dmabuf allocation failed\n");
4873                 goto out_free_pmb;
4874         }
4875         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4876         if (!mp->virt) {
4877                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4878                                 "0397 The mbuf allocation failed\n");
4879                 goto out_free_dmabuf;
4880         }
4881
4882         /* Cleanup any outstanding ELS commands */
4883         lpfc_els_flush_all_cmd(phba);
4884
4885         /* Block ELS IOCBs until we have done process link event */
4886         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4887
4888         /* Update link event statistics */
4889         phba->sli.slistat.link_event++;
4890
4891         /* Create lpfc_handle_latt mailbox command from link ACQE */
4892         lpfc_read_topology(phba, pmb, mp);
4893         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4894         pmb->vport = phba->pport;
4895
4896         /* Keep the link status for extra SLI4 state machine reference */
4897         phba->sli4_hba.link_state.speed =
4898                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4899                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4900         phba->sli4_hba.link_state.duplex =
4901                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4902         phba->sli4_hba.link_state.status =
4903                                 bf_get(lpfc_acqe_link_status, acqe_link);
4904         phba->sli4_hba.link_state.type =
4905                                 bf_get(lpfc_acqe_link_type, acqe_link);
4906         phba->sli4_hba.link_state.number =
4907                                 bf_get(lpfc_acqe_link_number, acqe_link);
4908         phba->sli4_hba.link_state.fault =
4909                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4910         phba->sli4_hba.link_state.logical_speed =
4911                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4912
4913         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4914                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4915                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4916                         "Logical speed:%dMbps Fault:%d\n",
4917                         phba->sli4_hba.link_state.speed,
4918                         phba->sli4_hba.link_state.topology,
4919                         phba->sli4_hba.link_state.status,
4920                         phba->sli4_hba.link_state.type,
4921                         phba->sli4_hba.link_state.number,
4922                         phba->sli4_hba.link_state.logical_speed,
4923                         phba->sli4_hba.link_state.fault);
4924         /*
4925          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4926          * topology info. Note: Optional for non FC-AL ports.
4927          */
4928         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4929                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4930                 if (rc == MBX_NOT_FINISHED)
4931                         goto out_free_dmabuf;
4932                 return;
4933         }
4934         /*
4935          * For FCoE Mode: fill in all the topology information we need and call
4936          * the READ_TOPOLOGY completion routine to continue without actually
4937          * sending the READ_TOPOLOGY mailbox command to the port.
4938          */
4939         /* Initialize completion status */
4940         mb = &pmb->u.mb;
4941         mb->mbxStatus = MBX_SUCCESS;
4942
4943         /* Parse port fault information field */
4944         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4945
4946         /* Parse and translate link attention fields */
4947         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4948         la->eventTag = acqe_link->event_tag;
4949         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4950         bf_set(lpfc_mbx_read_top_link_spd, la,
4951                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4952
4953         /* Fake the the following irrelvant fields */
4954         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4955         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4956         bf_set(lpfc_mbx_read_top_il, la, 0);
4957         bf_set(lpfc_mbx_read_top_pb, la, 0);
4958         bf_set(lpfc_mbx_read_top_fa, la, 0);
4959         bf_set(lpfc_mbx_read_top_mm, la, 0);
4960
4961         /* Invoke the lpfc_handle_latt mailbox command callback function */
4962         lpfc_mbx_cmpl_read_topology(phba, pmb);
4963
4964         return;
4965
4966 out_free_dmabuf:
4967         kfree(mp);
4968 out_free_pmb:
4969         mempool_free(pmb, phba->mbox_mem_pool);
4970 }
4971
4972 /**
4973  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4974  * topology.
4975  * @phba: pointer to lpfc hba data structure.
4976  * @evt_code: asynchronous event code.
4977  * @speed_code: asynchronous event link speed code.
4978  *
4979  * This routine is to parse the giving SLI4 async event link speed code into
4980  * value of Read topology link speed.
4981  *
4982  * Return: link speed in terms of Read topology.
4983  **/
4984 static uint8_t
4985 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4986 {
4987         uint8_t port_speed;
4988
4989         switch (speed_code) {
4990         case LPFC_FC_LA_SPEED_1G:
4991                 port_speed = LPFC_LINK_SPEED_1GHZ;
4992                 break;
4993         case LPFC_FC_LA_SPEED_2G:
4994                 port_speed = LPFC_LINK_SPEED_2GHZ;
4995                 break;
4996         case LPFC_FC_LA_SPEED_4G:
4997                 port_speed = LPFC_LINK_SPEED_4GHZ;
4998                 break;
4999         case LPFC_FC_LA_SPEED_8G:
5000                 port_speed = LPFC_LINK_SPEED_8GHZ;
5001                 break;
5002         case LPFC_FC_LA_SPEED_16G:
5003                 port_speed = LPFC_LINK_SPEED_16GHZ;
5004                 break;
5005         case LPFC_FC_LA_SPEED_32G:
5006                 port_speed = LPFC_LINK_SPEED_32GHZ;
5007                 break;
5008         case LPFC_FC_LA_SPEED_64G:
5009                 port_speed = LPFC_LINK_SPEED_64GHZ;
5010                 break;
5011         case LPFC_FC_LA_SPEED_128G:
5012                 port_speed = LPFC_LINK_SPEED_128GHZ;
5013                 break;
5014         case LPFC_FC_LA_SPEED_256G:
5015                 port_speed = LPFC_LINK_SPEED_256GHZ;
5016                 break;
5017         default:
5018                 port_speed = 0;
5019                 break;
5020         }
5021
5022         return port_speed;
5023 }
5024
5025 #define trunk_link_status(__idx)\
5026         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5027                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5028                 "Link up" : "Link down") : "NA"
5029 /* Did port __idx reported an error */
5030 #define trunk_port_fault(__idx)\
5031         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5032                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5033
5034 static void
5035 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5036                               struct lpfc_acqe_fc_la *acqe_fc)
5037 {
5038         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5039         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5040
5041         phba->sli4_hba.link_state.speed =
5042                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5043                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5044
5045         phba->sli4_hba.link_state.logical_speed =
5046                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
5047         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5048         phba->fc_linkspeed =
5049                  lpfc_async_link_speed_to_read_top(
5050                                 phba,
5051                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5052
5053         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5054                 phba->trunk_link.link0.state =
5055                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5056                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5057                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5058         }
5059         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5060                 phba->trunk_link.link1.state =
5061                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5062                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5063                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5064         }
5065         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5066                 phba->trunk_link.link2.state =
5067                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5068                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5069                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5070         }
5071         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5072                 phba->trunk_link.link3.state =
5073                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5074                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5075                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5076         }
5077
5078         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5079                         "2910 Async FC Trunking Event - Speed:%d\n"
5080                         "\tLogical speed:%d "
5081                         "port0: %s port1: %s port2: %s port3: %s\n",
5082                         phba->sli4_hba.link_state.speed,
5083                         phba->sli4_hba.link_state.logical_speed,
5084                         trunk_link_status(0), trunk_link_status(1),
5085                         trunk_link_status(2), trunk_link_status(3));
5086
5087         if (port_fault)
5088                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5089                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5090                                 /*
5091                                  * SLI-4: We have only 0xA error codes
5092                                  * defined as of now. print an appropriate
5093                                  * message in case driver needs to be updated.
5094                                  */
5095                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5096                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5097                                 trunk_port_fault(0), trunk_port_fault(1),
5098                                 trunk_port_fault(2), trunk_port_fault(3));
5099 }
5100
5101
5102 /**
5103  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5104  * @phba: pointer to lpfc hba data structure.
5105  * @acqe_fc: pointer to the async fc completion queue entry.
5106  *
5107  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5108  * that the event was received and then issue a read_topology mailbox command so
5109  * that the rest of the driver will treat it the same as SLI3.
5110  **/
5111 static void
5112 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5113 {
5114         struct lpfc_dmabuf *mp;
5115         LPFC_MBOXQ_t *pmb;
5116         MAILBOX_t *mb;
5117         struct lpfc_mbx_read_top *la;
5118         int rc;
5119
5120         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5121             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5122                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5123                                 "2895 Non FC link Event detected.(%d)\n",
5124                                 bf_get(lpfc_trailer_type, acqe_fc));
5125                 return;
5126         }
5127
5128         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5129             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5130                 lpfc_update_trunk_link_status(phba, acqe_fc);
5131                 return;
5132         }
5133
5134         /* Keep the link status for extra SLI4 state machine reference */
5135         phba->sli4_hba.link_state.speed =
5136                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5137                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5138         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5139         phba->sli4_hba.link_state.topology =
5140                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5141         phba->sli4_hba.link_state.status =
5142                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5143         phba->sli4_hba.link_state.type =
5144                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5145         phba->sli4_hba.link_state.number =
5146                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5147         phba->sli4_hba.link_state.fault =
5148                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5149         phba->sli4_hba.link_state.logical_speed =
5150                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5151         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5152                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5153                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5154                         "%dMbps Fault:%d\n",
5155                         phba->sli4_hba.link_state.speed,
5156                         phba->sli4_hba.link_state.topology,
5157                         phba->sli4_hba.link_state.status,
5158                         phba->sli4_hba.link_state.type,
5159                         phba->sli4_hba.link_state.number,
5160                         phba->sli4_hba.link_state.logical_speed,
5161                         phba->sli4_hba.link_state.fault);
5162         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5163         if (!pmb) {
5164                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5165                                 "2897 The mboxq allocation failed\n");
5166                 return;
5167         }
5168         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5169         if (!mp) {
5170                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5171                                 "2898 The lpfc_dmabuf allocation failed\n");
5172                 goto out_free_pmb;
5173         }
5174         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5175         if (!mp->virt) {
5176                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5177                                 "2899 The mbuf allocation failed\n");
5178                 goto out_free_dmabuf;
5179         }
5180
5181         /* Cleanup any outstanding ELS commands */
5182         lpfc_els_flush_all_cmd(phba);
5183
5184         /* Block ELS IOCBs until we have done process link event */
5185         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5186
5187         /* Update link event statistics */
5188         phba->sli.slistat.link_event++;
5189
5190         /* Create lpfc_handle_latt mailbox command from link ACQE */
5191         lpfc_read_topology(phba, pmb, mp);
5192         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5193         pmb->vport = phba->pport;
5194
5195         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5196                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5197
5198                 switch (phba->sli4_hba.link_state.status) {
5199                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5200                         phba->link_flag |= LS_MDS_LINK_DOWN;
5201                         break;
5202                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5203                         phba->link_flag |= LS_MDS_LOOPBACK;
5204                         break;
5205                 default:
5206                         break;
5207                 }
5208
5209                 /* Initialize completion status */
5210                 mb = &pmb->u.mb;
5211                 mb->mbxStatus = MBX_SUCCESS;
5212
5213                 /* Parse port fault information field */
5214                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5215
5216                 /* Parse and translate link attention fields */
5217                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5218                 la->eventTag = acqe_fc->event_tag;
5219
5220                 if (phba->sli4_hba.link_state.status ==
5221                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5222                         bf_set(lpfc_mbx_read_top_att_type, la,
5223                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5224                 } else {
5225                         bf_set(lpfc_mbx_read_top_att_type, la,
5226                                LPFC_FC_LA_TYPE_LINK_DOWN);
5227                 }
5228                 /* Invoke the mailbox command callback function */
5229                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5230
5231                 return;
5232         }
5233
5234         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5235         if (rc == MBX_NOT_FINISHED)
5236                 goto out_free_dmabuf;
5237         return;
5238
5239 out_free_dmabuf:
5240         kfree(mp);
5241 out_free_pmb:
5242         mempool_free(pmb, phba->mbox_mem_pool);
5243 }
5244
5245 /**
5246  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5247  * @phba: pointer to lpfc hba data structure.
5248  * @acqe_fc: pointer to the async SLI completion queue entry.
5249  *
5250  * This routine is to handle the SLI4 asynchronous SLI events.
5251  **/
5252 static void
5253 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5254 {
5255         char port_name;
5256         char message[128];
5257         uint8_t status;
5258         uint8_t evt_type;
5259         uint8_t operational = 0;
5260         struct temp_event temp_event_data;
5261         struct lpfc_acqe_misconfigured_event *misconfigured;
5262         struct Scsi_Host  *shost;
5263         struct lpfc_vport **vports;
5264         int rc, i;
5265
5266         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5267
5268         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5269                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5270                         "x%08x SLI Event Type:%d\n",
5271                         acqe_sli->event_data1, acqe_sli->event_data2,
5272                         evt_type);
5273
5274         port_name = phba->Port[0];
5275         if (port_name == 0x00)
5276                 port_name = '?'; /* get port name is empty */
5277
5278         switch (evt_type) {
5279         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5280                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5281                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5282                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5283
5284                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5285                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5286                                 acqe_sli->event_data1, port_name);
5287
5288                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5289                 shost = lpfc_shost_from_vport(phba->pport);
5290                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5291                                           sizeof(temp_event_data),
5292                                           (char *)&temp_event_data,
5293                                           SCSI_NL_VID_TYPE_PCI
5294                                           | PCI_VENDOR_ID_EMULEX);
5295                 break;
5296         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5297                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5298                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5299                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5300
5301                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5302                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5303                                 acqe_sli->event_data1, port_name);
5304
5305                 shost = lpfc_shost_from_vport(phba->pport);
5306                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5307                                           sizeof(temp_event_data),
5308                                           (char *)&temp_event_data,
5309                                           SCSI_NL_VID_TYPE_PCI
5310                                           | PCI_VENDOR_ID_EMULEX);
5311                 break;
5312         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5313                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5314                                         &acqe_sli->event_data1;
5315
5316                 /* fetch the status for this port */
5317                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5318                 case LPFC_LINK_NUMBER_0:
5319                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5320                                         &misconfigured->theEvent);
5321                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5322                                         &misconfigured->theEvent);
5323                         break;
5324                 case LPFC_LINK_NUMBER_1:
5325                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5326                                         &misconfigured->theEvent);
5327                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5328                                         &misconfigured->theEvent);
5329                         break;
5330                 case LPFC_LINK_NUMBER_2:
5331                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5332                                         &misconfigured->theEvent);
5333                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5334                                         &misconfigured->theEvent);
5335                         break;
5336                 case LPFC_LINK_NUMBER_3:
5337                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5338                                         &misconfigured->theEvent);
5339                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5340                                         &misconfigured->theEvent);
5341                         break;
5342                 default:
5343                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5344                                         "3296 "
5345                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5346                                         "event: Invalid link %d",
5347                                         phba->sli4_hba.lnk_info.lnk_no);
5348                         return;
5349                 }
5350
5351                 /* Skip if optic state unchanged */
5352                 if (phba->sli4_hba.lnk_info.optic_state == status)
5353                         return;
5354
5355                 switch (status) {
5356                 case LPFC_SLI_EVENT_STATUS_VALID:
5357                         sprintf(message, "Physical Link is functional");
5358                         break;
5359                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5360                         sprintf(message, "Optics faulted/incorrectly "
5361                                 "installed/not installed - Reseat optics, "
5362                                 "if issue not resolved, replace.");
5363                         break;
5364                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5365                         sprintf(message,
5366                                 "Optics of two types installed - Remove one "
5367                                 "optic or install matching pair of optics.");
5368                         break;
5369                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5370                         sprintf(message, "Incompatible optics - Replace with "
5371                                 "compatible optics for card to function.");
5372                         break;
5373                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5374                         sprintf(message, "Unqualified optics - Replace with "
5375                                 "Avago optics for Warranty and Technical "
5376                                 "Support - Link is%s operational",
5377                                 (operational) ? " not" : "");
5378                         break;
5379                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5380                         sprintf(message, "Uncertified optics - Replace with "
5381                                 "Avago-certified optics to enable link "
5382                                 "operation - Link is%s operational",
5383                                 (operational) ? " not" : "");
5384                         break;
5385                 default:
5386                         /* firmware is reporting a status we don't know about */
5387                         sprintf(message, "Unknown event status x%02x", status);
5388                         break;
5389                 }
5390
5391                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5392                 rc = lpfc_sli4_read_config(phba);
5393                 if (rc) {
5394                         phba->lmt = 0;
5395                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5396                                         "3194 Unable to retrieve supported "
5397                                         "speeds, rc = 0x%x\n", rc);
5398                 }
5399                 vports = lpfc_create_vport_work_array(phba);
5400                 if (vports != NULL) {
5401                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5402                                         i++) {
5403                                 shost = lpfc_shost_from_vport(vports[i]);
5404                                 lpfc_host_supported_speeds_set(shost);
5405                         }
5406                 }
5407                 lpfc_destroy_vport_work_array(phba, vports);
5408
5409                 phba->sli4_hba.lnk_info.optic_state = status;
5410                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5411                                 "3176 Port Name %c %s\n", port_name, message);
5412                 break;
5413         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5414                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5415                                 "3192 Remote DPort Test Initiated - "
5416                                 "Event Data1:x%08x Event Data2: x%08x\n",
5417                                 acqe_sli->event_data1, acqe_sli->event_data2);
5418                 break;
5419         default:
5420                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5421                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5422                                 "x%08x SLI Event Type:%d\n",
5423                                 acqe_sli->event_data1, acqe_sli->event_data2,
5424                                 evt_type);
5425                 break;
5426         }
5427 }
5428
5429 /**
5430  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5431  * @vport: pointer to vport data structure.
5432  *
5433  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5434  * response to a CVL event.
5435  *
5436  * Return the pointer to the ndlp with the vport if successful, otherwise
5437  * return NULL.
5438  **/
5439 static struct lpfc_nodelist *
5440 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5441 {
5442         struct lpfc_nodelist *ndlp;
5443         struct Scsi_Host *shost;
5444         struct lpfc_hba *phba;
5445
5446         if (!vport)
5447                 return NULL;
5448         phba = vport->phba;
5449         if (!phba)
5450                 return NULL;
5451         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5452         if (!ndlp) {
5453                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5454                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5455                 if (!ndlp)
5456                         return 0;
5457                 /* Set the node type */
5458                 ndlp->nlp_type |= NLP_FABRIC;
5459                 /* Put ndlp onto node list */
5460                 lpfc_enqueue_node(vport, ndlp);
5461         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5462                 /* re-setup ndlp without removing from node list */
5463                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5464                 if (!ndlp)
5465                         return 0;
5466         }
5467         if ((phba->pport->port_state < LPFC_FLOGI) &&
5468                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5469                 return NULL;
5470         /* If virtual link is not yet instantiated ignore CVL */
5471         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5472                 && (vport->port_state != LPFC_VPORT_FAILED))
5473                 return NULL;
5474         shost = lpfc_shost_from_vport(vport);
5475         if (!shost)
5476                 return NULL;
5477         lpfc_linkdown_port(vport);
5478         lpfc_cleanup_pending_mbox(vport);
5479         spin_lock_irq(shost->host_lock);
5480         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5481         spin_unlock_irq(shost->host_lock);
5482
5483         return ndlp;
5484 }
5485
5486 /**
5487  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5488  * @vport: pointer to lpfc hba data structure.
5489  *
5490  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5491  * response to a FCF dead event.
5492  **/
5493 static void
5494 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5495 {
5496         struct lpfc_vport **vports;
5497         int i;
5498
5499         vports = lpfc_create_vport_work_array(phba);
5500         if (vports)
5501                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5502                         lpfc_sli4_perform_vport_cvl(vports[i]);
5503         lpfc_destroy_vport_work_array(phba, vports);
5504 }
5505
5506 /**
5507  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5508  * @phba: pointer to lpfc hba data structure.
5509  * @acqe_link: pointer to the async fcoe completion queue entry.
5510  *
5511  * This routine is to handle the SLI4 asynchronous fcoe event.
5512  **/
5513 static void
5514 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5515                         struct lpfc_acqe_fip *acqe_fip)
5516 {
5517         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5518         int rc;
5519         struct lpfc_vport *vport;
5520         struct lpfc_nodelist *ndlp;
5521         struct Scsi_Host  *shost;
5522         int active_vlink_present;
5523         struct lpfc_vport **vports;
5524         int i;
5525
5526         phba->fc_eventTag = acqe_fip->event_tag;
5527         phba->fcoe_eventtag = acqe_fip->event_tag;
5528         switch (event_type) {
5529         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5530         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5531                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5532                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5533                                         LOG_DISCOVERY,
5534                                         "2546 New FCF event, evt_tag:x%x, "
5535                                         "index:x%x\n",
5536                                         acqe_fip->event_tag,
5537                                         acqe_fip->index);
5538                 else
5539                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5540                                         LOG_DISCOVERY,
5541                                         "2788 FCF param modified event, "
5542                                         "evt_tag:x%x, index:x%x\n",
5543                                         acqe_fip->event_tag,
5544                                         acqe_fip->index);
5545                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5546                         /*
5547                          * During period of FCF discovery, read the FCF
5548                          * table record indexed by the event to update
5549                          * FCF roundrobin failover eligible FCF bmask.
5550                          */
5551                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5552                                         LOG_DISCOVERY,
5553                                         "2779 Read FCF (x%x) for updating "
5554                                         "roundrobin FCF failover bmask\n",
5555                                         acqe_fip->index);
5556                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5557                 }
5558
5559                 /* If the FCF discovery is in progress, do nothing. */
5560                 spin_lock_irq(&phba->hbalock);
5561                 if (phba->hba_flag & FCF_TS_INPROG) {
5562                         spin_unlock_irq(&phba->hbalock);
5563                         break;
5564                 }
5565                 /* If fast FCF failover rescan event is pending, do nothing */
5566                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5567                         spin_unlock_irq(&phba->hbalock);
5568                         break;
5569                 }
5570
5571                 /* If the FCF has been in discovered state, do nothing. */
5572                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5573                         spin_unlock_irq(&phba->hbalock);
5574                         break;
5575                 }
5576                 spin_unlock_irq(&phba->hbalock);
5577
5578                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5579                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5580                                 "2770 Start FCF table scan per async FCF "
5581                                 "event, evt_tag:x%x, index:x%x\n",
5582                                 acqe_fip->event_tag, acqe_fip->index);
5583                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5584                                                      LPFC_FCOE_FCF_GET_FIRST);
5585                 if (rc)
5586                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5587                                         "2547 Issue FCF scan read FCF mailbox "
5588                                         "command failed (x%x)\n", rc);
5589                 break;
5590
5591         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5592                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5593                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5594                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5595                         acqe_fip->event_tag);
5596                 break;
5597
5598         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5599                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5600                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5601                         "2549 FCF (x%x) disconnected from network, "
5602                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5603                 /*
5604                  * If we are in the middle of FCF failover process, clear
5605                  * the corresponding FCF bit in the roundrobin bitmap.
5606                  */
5607                 spin_lock_irq(&phba->hbalock);
5608                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5609                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5610                         spin_unlock_irq(&phba->hbalock);
5611                         /* Update FLOGI FCF failover eligible FCF bmask */
5612                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5613                         break;
5614                 }
5615                 spin_unlock_irq(&phba->hbalock);
5616
5617                 /* If the event is not for currently used fcf do nothing */
5618                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5619                         break;
5620
5621                 /*
5622                  * Otherwise, request the port to rediscover the entire FCF
5623                  * table for a fast recovery from case that the current FCF
5624                  * is no longer valid as we are not in the middle of FCF
5625                  * failover process already.
5626                  */
5627                 spin_lock_irq(&phba->hbalock);
5628                 /* Mark the fast failover process in progress */
5629                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5630                 spin_unlock_irq(&phba->hbalock);
5631
5632                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5633                                 "2771 Start FCF fast failover process due to "
5634                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5635                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5636                 rc = lpfc_sli4_redisc_fcf_table(phba);
5637                 if (rc) {
5638                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5639                                         LOG_DISCOVERY,
5640                                         "2772 Issue FCF rediscover mailbox "
5641                                         "command failed, fail through to FCF "
5642                                         "dead event\n");
5643                         spin_lock_irq(&phba->hbalock);
5644                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5645                         spin_unlock_irq(&phba->hbalock);
5646                         /*
5647                          * Last resort will fail over by treating this
5648                          * as a link down to FCF registration.
5649                          */
5650                         lpfc_sli4_fcf_dead_failthrough(phba);
5651                 } else {
5652                         /* Reset FCF roundrobin bmask for new discovery */
5653                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5654                         /*
5655                          * Handling fast FCF failover to a DEAD FCF event is
5656                          * considered equalivant to receiving CVL to all vports.
5657                          */
5658                         lpfc_sli4_perform_all_vport_cvl(phba);
5659                 }
5660                 break;
5661         case LPFC_FIP_EVENT_TYPE_CVL:
5662                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5663                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5664                         "2718 Clear Virtual Link Received for VPI 0x%x"
5665                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5666
5667                 vport = lpfc_find_vport_by_vpid(phba,
5668                                                 acqe_fip->index);
5669                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5670                 if (!ndlp)
5671                         break;
5672                 active_vlink_present = 0;
5673
5674                 vports = lpfc_create_vport_work_array(phba);
5675                 if (vports) {
5676                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5677                                         i++) {
5678                                 if ((!(vports[i]->fc_flag &
5679                                         FC_VPORT_CVL_RCVD)) &&
5680                                         (vports[i]->port_state > LPFC_FDISC)) {
5681                                         active_vlink_present = 1;
5682                                         break;
5683                                 }
5684                         }
5685                         lpfc_destroy_vport_work_array(phba, vports);
5686                 }
5687
5688                 /*
5689                  * Don't re-instantiate if vport is marked for deletion.
5690                  * If we are here first then vport_delete is going to wait
5691                  * for discovery to complete.
5692                  */
5693                 if (!(vport->load_flag & FC_UNLOADING) &&
5694                                         active_vlink_present) {
5695                         /*
5696                          * If there are other active VLinks present,
5697                          * re-instantiate the Vlink using FDISC.
5698                          */
5699                         mod_timer(&ndlp->nlp_delayfunc,
5700                                   jiffies + msecs_to_jiffies(1000));
5701                         shost = lpfc_shost_from_vport(vport);
5702                         spin_lock_irq(shost->host_lock);
5703                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5704                         spin_unlock_irq(shost->host_lock);
5705                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5706                         vport->port_state = LPFC_FDISC;
5707                 } else {
5708                         /*
5709                          * Otherwise, we request port to rediscover
5710                          * the entire FCF table for a fast recovery
5711                          * from possible case that the current FCF
5712                          * is no longer valid if we are not already
5713                          * in the FCF failover process.
5714                          */
5715                         spin_lock_irq(&phba->hbalock);
5716                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5717                                 spin_unlock_irq(&phba->hbalock);
5718                                 break;
5719                         }
5720                         /* Mark the fast failover process in progress */
5721                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5722                         spin_unlock_irq(&phba->hbalock);
5723                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5724                                         LOG_DISCOVERY,
5725                                         "2773 Start FCF failover per CVL, "
5726                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5727                         rc = lpfc_sli4_redisc_fcf_table(phba);
5728                         if (rc) {
5729                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5730                                                 LOG_DISCOVERY,
5731                                                 "2774 Issue FCF rediscover "
5732                                                 "mailbox command failed, "
5733                                                 "through to CVL event\n");
5734                                 spin_lock_irq(&phba->hbalock);
5735                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5736                                 spin_unlock_irq(&phba->hbalock);
5737                                 /*
5738                                  * Last resort will be re-try on the
5739                                  * the current registered FCF entry.
5740                                  */
5741                                 lpfc_retry_pport_discovery(phba);
5742                         } else
5743                                 /*
5744                                  * Reset FCF roundrobin bmask for new
5745                                  * discovery.
5746                                  */
5747                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5748                 }
5749                 break;
5750         default:
5751                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5752                         "0288 Unknown FCoE event type 0x%x event tag "
5753                         "0x%x\n", event_type, acqe_fip->event_tag);
5754                 break;
5755         }
5756 }
5757
5758 /**
5759  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5760  * @phba: pointer to lpfc hba data structure.
5761  * @acqe_link: pointer to the async dcbx completion queue entry.
5762  *
5763  * This routine is to handle the SLI4 asynchronous dcbx event.
5764  **/
5765 static void
5766 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5767                          struct lpfc_acqe_dcbx *acqe_dcbx)
5768 {
5769         phba->fc_eventTag = acqe_dcbx->event_tag;
5770         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5771                         "0290 The SLI4 DCBX asynchronous event is not "
5772                         "handled yet\n");
5773 }
5774
5775 /**
5776  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5777  * @phba: pointer to lpfc hba data structure.
5778  * @acqe_link: pointer to the async grp5 completion queue entry.
5779  *
5780  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5781  * is an asynchronous notified of a logical link speed change.  The Port
5782  * reports the logical link speed in units of 10Mbps.
5783  **/
5784 static void
5785 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5786                          struct lpfc_acqe_grp5 *acqe_grp5)
5787 {
5788         uint16_t prev_ll_spd;
5789
5790         phba->fc_eventTag = acqe_grp5->event_tag;
5791         phba->fcoe_eventtag = acqe_grp5->event_tag;
5792         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5793         phba->sli4_hba.link_state.logical_speed =
5794                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5795         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5796                         "2789 GRP5 Async Event: Updating logical link speed "
5797                         "from %dMbps to %dMbps\n", prev_ll_spd,
5798                         phba->sli4_hba.link_state.logical_speed);
5799 }
5800
5801 /**
5802  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5803  * @phba: pointer to lpfc hba data structure.
5804  *
5805  * This routine is invoked by the worker thread to process all the pending
5806  * SLI4 asynchronous events.
5807  **/
5808 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5809 {
5810         struct lpfc_cq_event *cq_event;
5811
5812         /* First, declare the async event has been handled */
5813         spin_lock_irq(&phba->hbalock);
5814         phba->hba_flag &= ~ASYNC_EVENT;
5815         spin_unlock_irq(&phba->hbalock);
5816         /* Now, handle all the async events */
5817         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5818                 /* Get the first event from the head of the event queue */
5819                 spin_lock_irq(&phba->hbalock);
5820                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5821                                  cq_event, struct lpfc_cq_event, list);
5822                 spin_unlock_irq(&phba->hbalock);
5823                 /* Process the asynchronous event */
5824                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5825                 case LPFC_TRAILER_CODE_LINK:
5826                         lpfc_sli4_async_link_evt(phba,
5827                                                  &cq_event->cqe.acqe_link);
5828                         break;
5829                 case LPFC_TRAILER_CODE_FCOE:
5830                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5831                         break;
5832                 case LPFC_TRAILER_CODE_DCBX:
5833                         lpfc_sli4_async_dcbx_evt(phba,
5834                                                  &cq_event->cqe.acqe_dcbx);
5835                         break;
5836                 case LPFC_TRAILER_CODE_GRP5:
5837                         lpfc_sli4_async_grp5_evt(phba,
5838                                                  &cq_event->cqe.acqe_grp5);
5839                         break;
5840                 case LPFC_TRAILER_CODE_FC:
5841                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5842                         break;
5843                 case LPFC_TRAILER_CODE_SLI:
5844                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5845                         break;
5846                 default:
5847                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5848                                         "1804 Invalid asynchrous event code: "
5849                                         "x%x\n", bf_get(lpfc_trailer_code,
5850                                         &cq_event->cqe.mcqe_cmpl));
5851                         break;
5852                 }
5853                 /* Free the completion event processed to the free pool */
5854                 lpfc_sli4_cq_event_release(phba, cq_event);
5855         }
5856 }
5857
5858 /**
5859  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5860  * @phba: pointer to lpfc hba data structure.
5861  *
5862  * This routine is invoked by the worker thread to process FCF table
5863  * rediscovery pending completion event.
5864  **/
5865 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5866 {
5867         int rc;
5868
5869         spin_lock_irq(&phba->hbalock);
5870         /* Clear FCF rediscovery timeout event */
5871         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5872         /* Clear driver fast failover FCF record flag */
5873         phba->fcf.failover_rec.flag = 0;
5874         /* Set state for FCF fast failover */
5875         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5876         spin_unlock_irq(&phba->hbalock);
5877
5878         /* Scan FCF table from the first entry to re-discover SAN */
5879         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5880                         "2777 Start post-quiescent FCF table scan\n");
5881         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5882         if (rc)
5883                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5884                                 "2747 Issue FCF scan read FCF mailbox "
5885                                 "command failed 0x%x\n", rc);
5886 }
5887
5888 /**
5889  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5890  * @phba: pointer to lpfc hba data structure.
5891  * @dev_grp: The HBA PCI-Device group number.
5892  *
5893  * This routine is invoked to set up the per HBA PCI-Device group function
5894  * API jump table entries.
5895  *
5896  * Return: 0 if success, otherwise -ENODEV
5897  **/
5898 int
5899 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5900 {
5901         int rc;
5902
5903         /* Set up lpfc PCI-device group */
5904         phba->pci_dev_grp = dev_grp;
5905
5906         /* The LPFC_PCI_DEV_OC uses SLI4 */
5907         if (dev_grp == LPFC_PCI_DEV_OC)
5908                 phba->sli_rev = LPFC_SLI_REV4;
5909
5910         /* Set up device INIT API function jump table */
5911         rc = lpfc_init_api_table_setup(phba, dev_grp);
5912         if (rc)
5913                 return -ENODEV;
5914         /* Set up SCSI API function jump table */
5915         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5916         if (rc)
5917                 return -ENODEV;
5918         /* Set up SLI API function jump table */
5919         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5920         if (rc)
5921                 return -ENODEV;
5922         /* Set up MBOX API function jump table */
5923         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5924         if (rc)
5925                 return -ENODEV;
5926
5927         return 0;
5928 }
5929
5930 /**
5931  * lpfc_log_intr_mode - Log the active interrupt mode
5932  * @phba: pointer to lpfc hba data structure.
5933  * @intr_mode: active interrupt mode adopted.
5934  *
5935  * This routine it invoked to log the currently used active interrupt mode
5936  * to the device.
5937  **/
5938 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5939 {
5940         switch (intr_mode) {
5941         case 0:
5942                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5943                                 "0470 Enable INTx interrupt mode.\n");
5944                 break;
5945         case 1:
5946                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5947                                 "0481 Enabled MSI interrupt mode.\n");
5948                 break;
5949         case 2:
5950                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5951                                 "0480 Enabled MSI-X interrupt mode.\n");
5952                 break;
5953         default:
5954                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5955                                 "0482 Illegal interrupt mode.\n");
5956                 break;
5957         }
5958         return;
5959 }
5960
5961 /**
5962  * lpfc_enable_pci_dev - Enable a generic PCI device.
5963  * @phba: pointer to lpfc hba data structure.
5964  *
5965  * This routine is invoked to enable the PCI device that is common to all
5966  * PCI devices.
5967  *
5968  * Return codes
5969  *      0 - successful
5970  *      other values - error
5971  **/
5972 static int
5973 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5974 {
5975         struct pci_dev *pdev;
5976
5977         /* Obtain PCI device reference */
5978         if (!phba->pcidev)
5979                 goto out_error;
5980         else
5981                 pdev = phba->pcidev;
5982         /* Enable PCI device */
5983         if (pci_enable_device_mem(pdev))
5984                 goto out_error;
5985         /* Request PCI resource for the device */
5986         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5987                 goto out_disable_device;
5988         /* Set up device as PCI master and save state for EEH */
5989         pci_set_master(pdev);
5990         pci_try_set_mwi(pdev);
5991         pci_save_state(pdev);
5992
5993         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5994         if (pci_is_pcie(pdev))
5995                 pdev->needs_freset = 1;
5996
5997         return 0;
5998
5999 out_disable_device:
6000         pci_disable_device(pdev);
6001 out_error:
6002         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6003                         "1401 Failed to enable pci device\n");
6004         return -ENODEV;
6005 }
6006
6007 /**
6008  * lpfc_disable_pci_dev - Disable a generic PCI device.
6009  * @phba: pointer to lpfc hba data structure.
6010  *
6011  * This routine is invoked to disable the PCI device that is common to all
6012  * PCI devices.
6013  **/
6014 static void
6015 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6016 {
6017         struct pci_dev *pdev;
6018
6019         /* Obtain PCI device reference */
6020         if (!phba->pcidev)
6021                 return;
6022         else
6023                 pdev = phba->pcidev;
6024         /* Release PCI resource and disable PCI device */
6025         pci_release_mem_regions(pdev);
6026         pci_disable_device(pdev);
6027
6028         return;
6029 }
6030
6031 /**
6032  * lpfc_reset_hba - Reset a hba
6033  * @phba: pointer to lpfc hba data structure.
6034  *
6035  * This routine is invoked to reset a hba device. It brings the HBA
6036  * offline, performs a board restart, and then brings the board back
6037  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6038  * on outstanding mailbox commands.
6039  **/
6040 void
6041 lpfc_reset_hba(struct lpfc_hba *phba)
6042 {
6043         /* If resets are disabled then set error state and return. */
6044         if (!phba->cfg_enable_hba_reset) {
6045                 phba->link_state = LPFC_HBA_ERROR;
6046                 return;
6047         }
6048         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6049                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6050         else
6051                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6052         lpfc_offline(phba);
6053         lpfc_sli_brdrestart(phba);
6054         lpfc_online(phba);
6055         lpfc_unblock_mgmt_io(phba);
6056 }
6057
6058 /**
6059  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6060  * @phba: pointer to lpfc hba data structure.
6061  *
6062  * This function enables the PCI SR-IOV virtual functions to a physical
6063  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6064  * enable the number of virtual functions to the physical function. As
6065  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6066  * API call does not considered as an error condition for most of the device.
6067  **/
6068 uint16_t
6069 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6070 {
6071         struct pci_dev *pdev = phba->pcidev;
6072         uint16_t nr_virtfn;
6073         int pos;
6074
6075         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6076         if (pos == 0)
6077                 return 0;
6078
6079         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6080         return nr_virtfn;
6081 }
6082
6083 /**
6084  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6085  * @phba: pointer to lpfc hba data structure.
6086  * @nr_vfn: number of virtual functions to be enabled.
6087  *
6088  * This function enables the PCI SR-IOV virtual functions to a physical
6089  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6090  * enable the number of virtual functions to the physical function. As
6091  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6092  * API call does not considered as an error condition for most of the device.
6093  **/
6094 int
6095 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6096 {
6097         struct pci_dev *pdev = phba->pcidev;
6098         uint16_t max_nr_vfn;
6099         int rc;
6100
6101         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6102         if (nr_vfn > max_nr_vfn) {
6103                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6104                                 "3057 Requested vfs (%d) greater than "
6105                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6106                 return -EINVAL;
6107         }
6108
6109         rc = pci_enable_sriov(pdev, nr_vfn);
6110         if (rc) {
6111                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6112                                 "2806 Failed to enable sriov on this device "
6113                                 "with vfn number nr_vf:%d, rc:%d\n",
6114                                 nr_vfn, rc);
6115         } else
6116                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6117                                 "2807 Successful enable sriov on this device "
6118                                 "with vfn number nr_vf:%d\n", nr_vfn);
6119         return rc;
6120 }
6121
6122 /**
6123  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6124  * @phba: pointer to lpfc hba data structure.
6125  *
6126  * This routine is invoked to set up the driver internal resources before the
6127  * device specific resource setup to support the HBA device it attached to.
6128  *
6129  * Return codes
6130  *      0 - successful
6131  *      other values - error
6132  **/
6133 static int
6134 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6135 {
6136         struct lpfc_sli *psli = &phba->sli;
6137
6138         /*
6139          * Driver resources common to all SLI revisions
6140          */
6141         atomic_set(&phba->fast_event_count, 0);
6142         spin_lock_init(&phba->hbalock);
6143
6144         /* Initialize ndlp management spinlock */
6145         spin_lock_init(&phba->ndlp_lock);
6146
6147         /* Initialize port_list spinlock */
6148         spin_lock_init(&phba->port_list_lock);
6149         INIT_LIST_HEAD(&phba->port_list);
6150
6151         INIT_LIST_HEAD(&phba->work_list);
6152         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6153
6154         /* Initialize the wait queue head for the kernel thread */
6155         init_waitqueue_head(&phba->work_waitq);
6156
6157         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6158                         "1403 Protocols supported %s %s %s\n",
6159                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6160                                 "SCSI" : " "),
6161                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6162                                 "NVME" : " "),
6163                         (phba->nvmet_support ? "NVMET" : " "));
6164
6165         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6166         spin_lock_init(&phba->scsi_buf_list_get_lock);
6167         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6168         spin_lock_init(&phba->scsi_buf_list_put_lock);
6169         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6170
6171         /* Initialize the fabric iocb list */
6172         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6173
6174         /* Initialize list to save ELS buffers */
6175         INIT_LIST_HEAD(&phba->elsbuf);
6176
6177         /* Initialize FCF connection rec list */
6178         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6179
6180         /* Initialize OAS configuration list */
6181         spin_lock_init(&phba->devicelock);
6182         INIT_LIST_HEAD(&phba->luns);
6183
6184         /* MBOX heartbeat timer */
6185         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6186         /* Fabric block timer */
6187         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6188         /* EA polling mode timer */
6189         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6190         /* Heartbeat timer */
6191         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6192
6193         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6194
6195         return 0;
6196 }
6197
6198 /**
6199  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6200  * @phba: pointer to lpfc hba data structure.
6201  *
6202  * This routine is invoked to set up the driver internal resources specific to
6203  * support the SLI-3 HBA device it attached to.
6204  *
6205  * Return codes
6206  * 0 - successful
6207  * other values - error
6208  **/
6209 static int
6210 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6211 {
6212         int rc, entry_sz;
6213
6214         /*
6215          * Initialize timers used by driver
6216          */
6217
6218         /* FCP polling mode timer */
6219         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6220
6221         /* Host attention work mask setup */
6222         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6223         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6224
6225         /* Get all the module params for configuring this host */
6226         lpfc_get_cfgparam(phba);
6227         /* Set up phase-1 common device driver resources */
6228
6229         rc = lpfc_setup_driver_resource_phase1(phba);
6230         if (rc)
6231                 return -ENODEV;
6232
6233         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6234                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6235                 /* check for menlo minimum sg count */
6236                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6237                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6238         }
6239
6240         if (!phba->sli.sli3_ring)
6241                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6242                                               sizeof(struct lpfc_sli_ring),
6243                                               GFP_KERNEL);
6244         if (!phba->sli.sli3_ring)
6245                 return -ENOMEM;
6246
6247         /*
6248          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6249          * used to create the sg_dma_buf_pool must be dynamically calculated.
6250          */
6251
6252         /* Initialize the host templates the configured values. */
6253         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6254         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6255         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6256
6257         if (phba->sli_rev == LPFC_SLI_REV4)
6258                 entry_sz = sizeof(struct sli4_sge);
6259         else
6260                 entry_sz = sizeof(struct ulp_bde64);
6261
6262         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6263         if (phba->cfg_enable_bg) {
6264                 /*
6265                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6266                  * the FCP rsp, and a BDE for each. Sice we have no control
6267                  * over how many protection data segments the SCSI Layer
6268                  * will hand us (ie: there could be one for every block
6269                  * in the IO), we just allocate enough BDEs to accomidate
6270                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6271                  * minimize the risk of running out.
6272                  */
6273                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6274                         sizeof(struct fcp_rsp) +
6275                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6276
6277                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6278                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6279
6280                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6281                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6282         } else {
6283                 /*
6284                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6285                  * the FCP rsp, a BDE for each, and a BDE for up to
6286                  * cfg_sg_seg_cnt data segments.
6287                  */
6288                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6289                         sizeof(struct fcp_rsp) +
6290                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6291
6292                 /* Total BDEs in BPL for scsi_sg_list */
6293                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6294         }
6295
6296         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6297                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6298                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6299                         phba->cfg_total_seg_cnt);
6300
6301         phba->max_vpi = LPFC_MAX_VPI;
6302         /* This will be set to correct value after config_port mbox */
6303         phba->max_vports = 0;
6304
6305         /*
6306          * Initialize the SLI Layer to run with lpfc HBAs.
6307          */
6308         lpfc_sli_setup(phba);
6309         lpfc_sli_queue_init(phba);
6310
6311         /* Allocate device driver memory */
6312         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6313                 return -ENOMEM;
6314
6315         /*
6316          * Enable sr-iov virtual functions if supported and configured
6317          * through the module parameter.
6318          */
6319         if (phba->cfg_sriov_nr_virtfn > 0) {
6320                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6321                                                  phba->cfg_sriov_nr_virtfn);
6322                 if (rc) {
6323                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6324                                         "2808 Requested number of SR-IOV "
6325                                         "virtual functions (%d) is not "
6326                                         "supported\n",
6327                                         phba->cfg_sriov_nr_virtfn);
6328                         phba->cfg_sriov_nr_virtfn = 0;
6329                 }
6330         }
6331
6332         return 0;
6333 }
6334
6335 /**
6336  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6337  * @phba: pointer to lpfc hba data structure.
6338  *
6339  * This routine is invoked to unset the driver internal resources set up
6340  * specific for supporting the SLI-3 HBA device it attached to.
6341  **/
6342 static void
6343 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6344 {
6345         /* Free device driver memory allocated */
6346         lpfc_mem_free_all(phba);
6347
6348         return;
6349 }
6350
6351 /**
6352  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6353  * @phba: pointer to lpfc hba data structure.
6354  *
6355  * This routine is invoked to set up the driver internal resources specific to
6356  * support the SLI-4 HBA device it attached to.
6357  *
6358  * Return codes
6359  *      0 - successful
6360  *      other values - error
6361  **/
6362 static int
6363 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6364 {
6365         LPFC_MBOXQ_t *mboxq;
6366         MAILBOX_t *mb;
6367         int rc, i, max_buf_size;
6368         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6369         struct lpfc_mqe *mqe;
6370         int longs;
6371         int extra;
6372         uint64_t wwn;
6373         u32 if_type;
6374         u32 if_fam;
6375
6376         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6377         phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6378         phba->sli4_hba.curr_disp_cpu = 0;
6379
6380         /* Get all the module params for configuring this host */
6381         lpfc_get_cfgparam(phba);
6382
6383         /* Set up phase-1 common device driver resources */
6384         rc = lpfc_setup_driver_resource_phase1(phba);
6385         if (rc)
6386                 return -ENODEV;
6387
6388         /* Before proceed, wait for POST done and device ready */
6389         rc = lpfc_sli4_post_status_check(phba);
6390         if (rc)
6391                 return -ENODEV;
6392
6393         /*
6394          * Initialize timers used by driver
6395          */
6396
6397         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6398
6399         /* FCF rediscover timer */
6400         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6401
6402         /*
6403          * Control structure for handling external multi-buffer mailbox
6404          * command pass-through.
6405          */
6406         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6407                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6408         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6409
6410         phba->max_vpi = LPFC_MAX_VPI;
6411
6412         /* This will be set to correct value after the read_config mbox */
6413         phba->max_vports = 0;
6414
6415         /* Program the default value of vlan_id and fc_map */
6416         phba->valid_vlan = 0;
6417         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6418         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6419         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6420
6421         /*
6422          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6423          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6424          * The WQ create will allocate the ring.
6425          */
6426
6427         /*
6428          * 1 for cmd, 1 for rsp, NVME adds an extra one
6429          * for boundary conditions in its max_sgl_segment template.
6430          */
6431         extra = 2;
6432         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6433                 extra++;
6434
6435         /*
6436          * It doesn't matter what family our adapter is in, we are
6437          * limited to 2 Pages, 512 SGEs, for our SGL.
6438          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6439          */
6440         max_buf_size = (2 * SLI4_PAGE_SIZE);
6441
6442         /*
6443          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6444          * used to create the sg_dma_buf_pool must be calculated.
6445          */
6446         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6447                 /*
6448                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6449                  * the FCP rsp, and a SGE. Sice we have no control
6450                  * over how many protection segments the SCSI Layer
6451                  * will hand us (ie: there could be one for every block
6452                  * in the IO), just allocate enough SGEs to accomidate
6453                  * our max amount and we need to limit lpfc_sg_seg_cnt
6454                  * to minimize the risk of running out.
6455                  */
6456                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6457                                 sizeof(struct fcp_rsp) + max_buf_size;
6458
6459                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6460                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6461
6462                 /*
6463                  * If supporting DIF, reduce the seg count for scsi to
6464                  * allow room for the DIF sges.
6465                  */
6466                 if (phba->cfg_enable_bg &&
6467                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6468                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6469                 else
6470                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6471
6472         } else {
6473                 /*
6474                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6475                  * the FCP rsp, a SGE for each, and a SGE for up to
6476                  * cfg_sg_seg_cnt data segments.
6477                  */
6478                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6479                                 sizeof(struct fcp_rsp) +
6480                                 ((phba->cfg_sg_seg_cnt + extra) *
6481                                 sizeof(struct sli4_sge));
6482
6483                 /* Total SGEs for scsi_sg_list */
6484                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6485                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6486
6487                 /*
6488                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6489                  * need to post 1 page for the SGL.
6490                  */
6491         }
6492
6493         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6494         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6495                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6496                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6497                                         "6300 Reducing NVME sg segment "
6498                                         "cnt to %d\n",
6499                                         LPFC_MAX_NVME_SEG_CNT);
6500                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6501                 } else
6502                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6503         }
6504
6505         /* Initialize the host templates with the updated values. */
6506         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6507         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6508         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6509
6510         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6511                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6512         else
6513                 phba->cfg_sg_dma_buf_size =
6514                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6515
6516         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6517                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6518                         "total:%d scsi:%d nvme:%d\n",
6519                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6520                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6521                         phba->cfg_nvme_seg_cnt);
6522
6523         /* Initialize buffer queue management fields */
6524         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6525         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6526         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6527
6528         /*
6529          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6530          */
6531         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6532                 /* Initialize the Abort scsi buffer list used by driver */
6533                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6534                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6535         }
6536
6537         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6538                 /* Initialize the Abort nvme buffer list used by driver */
6539                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6540                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6541                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6542         }
6543
6544         /* This abort list used by worker thread */
6545         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6546         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6547
6548         /*
6549          * Initialize driver internal slow-path work queues
6550          */
6551
6552         /* Driver internel slow-path CQ Event pool */
6553         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6554         /* Response IOCB work queue list */
6555         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6556         /* Asynchronous event CQ Event work queue list */
6557         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6558         /* Fast-path XRI aborted CQ Event work queue list */
6559         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6560         /* Slow-path XRI aborted CQ Event work queue list */
6561         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6562         /* Receive queue CQ Event work queue list */
6563         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6564
6565         /* Initialize extent block lists. */
6566         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6567         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6568         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6569         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6570
6571         /* Initialize mboxq lists. If the early init routines fail
6572          * these lists need to be correctly initialized.
6573          */
6574         INIT_LIST_HEAD(&phba->sli.mboxq);
6575         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6576
6577         /* initialize optic_state to 0xFF */
6578         phba->sli4_hba.lnk_info.optic_state = 0xff;
6579
6580         /* Allocate device driver memory */
6581         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6582         if (rc)
6583                 return -ENOMEM;
6584
6585         /* IF Type 2 ports get initialized now. */
6586         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6587             LPFC_SLI_INTF_IF_TYPE_2) {
6588                 rc = lpfc_pci_function_reset(phba);
6589                 if (unlikely(rc)) {
6590                         rc = -ENODEV;
6591                         goto out_free_mem;
6592                 }
6593                 phba->temp_sensor_support = 1;
6594         }
6595
6596         /* Create the bootstrap mailbox command */
6597         rc = lpfc_create_bootstrap_mbox(phba);
6598         if (unlikely(rc))
6599                 goto out_free_mem;
6600
6601         /* Set up the host's endian order with the device. */
6602         rc = lpfc_setup_endian_order(phba);
6603         if (unlikely(rc))
6604                 goto out_free_bsmbx;
6605
6606         /* Set up the hba's configuration parameters. */
6607         rc = lpfc_sli4_read_config(phba);
6608         if (unlikely(rc))
6609                 goto out_free_bsmbx;
6610         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6611         if (unlikely(rc))
6612                 goto out_free_bsmbx;
6613
6614         /* IF Type 0 ports get initialized now. */
6615         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6616             LPFC_SLI_INTF_IF_TYPE_0) {
6617                 rc = lpfc_pci_function_reset(phba);
6618                 if (unlikely(rc))
6619                         goto out_free_bsmbx;
6620         }
6621
6622         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6623                                                        GFP_KERNEL);
6624         if (!mboxq) {
6625                 rc = -ENOMEM;
6626                 goto out_free_bsmbx;
6627         }
6628
6629         /* Check for NVMET being configured */
6630         phba->nvmet_support = 0;
6631         if (lpfc_enable_nvmet_cnt) {
6632
6633                 /* First get WWN of HBA instance */
6634                 lpfc_read_nv(phba, mboxq);
6635                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6636                 if (rc != MBX_SUCCESS) {
6637                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6638                                         "6016 Mailbox failed , mbxCmd x%x "
6639                                         "READ_NV, mbxStatus x%x\n",
6640                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6641                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6642                         mempool_free(mboxq, phba->mbox_mem_pool);
6643                         rc = -EIO;
6644                         goto out_free_bsmbx;
6645                 }
6646                 mb = &mboxq->u.mb;
6647                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6648                        sizeof(uint64_t));
6649                 wwn = cpu_to_be64(wwn);
6650                 phba->sli4_hba.wwnn.u.name = wwn;
6651                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6652                        sizeof(uint64_t));
6653                 /* wwn is WWPN of HBA instance */
6654                 wwn = cpu_to_be64(wwn);
6655                 phba->sli4_hba.wwpn.u.name = wwn;
6656
6657                 /* Check to see if it matches any module parameter */
6658                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6659                         if (wwn == lpfc_enable_nvmet[i]) {
6660 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6661                                 if (lpfc_nvmet_mem_alloc(phba))
6662                                         break;
6663
6664                                 phba->nvmet_support = 1; /* a match */
6665
6666                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6667                                                 "6017 NVME Target %016llx\n",
6668                                                 wwn);
6669 #else
6670                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6671                                                 "6021 Can't enable NVME Target."
6672                                                 " NVME_TARGET_FC infrastructure"
6673                                                 " is not in kernel\n");
6674 #endif
6675                                 /* Not supported for NVMET */
6676                                 phba->cfg_xri_rebalancing = 0;
6677                                 break;
6678                         }
6679                 }
6680         }
6681
6682         lpfc_nvme_mod_param_dep(phba);
6683
6684         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6685         lpfc_supported_pages(mboxq);
6686         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6687         if (!rc) {
6688                 mqe = &mboxq->u.mqe;
6689                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6690                        LPFC_MAX_SUPPORTED_PAGES);
6691                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6692                         switch (pn_page[i]) {
6693                         case LPFC_SLI4_PARAMETERS:
6694                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6695                                 break;
6696                         default:
6697                                 break;
6698                         }
6699                 }
6700                 /* Read the port's SLI4 Parameters capabilities if supported. */
6701                 if (phba->sli4_hba.pc_sli4_params.supported)
6702                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6703                 if (rc) {
6704                         mempool_free(mboxq, phba->mbox_mem_pool);
6705                         rc = -EIO;
6706                         goto out_free_bsmbx;
6707                 }
6708         }
6709
6710         /*
6711          * Get sli4 parameters that override parameters from Port capabilities.
6712          * If this call fails, it isn't critical unless the SLI4 parameters come
6713          * back in conflict.
6714          */
6715         rc = lpfc_get_sli4_parameters(phba, mboxq);
6716         if (rc) {
6717                 if_type = bf_get(lpfc_sli_intf_if_type,
6718                                  &phba->sli4_hba.sli_intf);
6719                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6720                                 &phba->sli4_hba.sli_intf);
6721                 if (phba->sli4_hba.extents_in_use &&
6722                     phba->sli4_hba.rpi_hdrs_in_use) {
6723                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6724                                 "2999 Unsupported SLI4 Parameters "
6725                                 "Extents and RPI headers enabled.\n");
6726                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6727                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6728                                 mempool_free(mboxq, phba->mbox_mem_pool);
6729                                 rc = -EIO;
6730                                 goto out_free_bsmbx;
6731                         }
6732                 }
6733                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6734                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6735                         mempool_free(mboxq, phba->mbox_mem_pool);
6736                         rc = -EIO;
6737                         goto out_free_bsmbx;
6738                 }
6739         }
6740
6741         mempool_free(mboxq, phba->mbox_mem_pool);
6742
6743         /* Verify OAS is supported */
6744         lpfc_sli4_oas_verify(phba);
6745
6746         /* Verify RAS support on adapter */
6747         lpfc_sli4_ras_init(phba);
6748
6749         /* Verify all the SLI4 queues */
6750         rc = lpfc_sli4_queue_verify(phba);
6751         if (rc)
6752                 goto out_free_bsmbx;
6753
6754         /* Create driver internal CQE event pool */
6755         rc = lpfc_sli4_cq_event_pool_create(phba);
6756         if (rc)
6757                 goto out_free_bsmbx;
6758
6759         /* Initialize sgl lists per host */
6760         lpfc_init_sgl_list(phba);
6761
6762         /* Allocate and initialize active sgl array */
6763         rc = lpfc_init_active_sgl_array(phba);
6764         if (rc) {
6765                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6766                                 "1430 Failed to initialize sgl list.\n");
6767                 goto out_destroy_cq_event_pool;
6768         }
6769         rc = lpfc_sli4_init_rpi_hdrs(phba);
6770         if (rc) {
6771                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6772                                 "1432 Failed to initialize rpi headers.\n");
6773                 goto out_free_active_sgl;
6774         }
6775
6776         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6777         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6778         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6779                                          GFP_KERNEL);
6780         if (!phba->fcf.fcf_rr_bmask) {
6781                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782                                 "2759 Failed allocate memory for FCF round "
6783                                 "robin failover bmask\n");
6784                 rc = -ENOMEM;
6785                 goto out_remove_rpi_hdrs;
6786         }
6787
6788         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6789                                             sizeof(struct lpfc_hba_eq_hdl),
6790                                             GFP_KERNEL);
6791         if (!phba->sli4_hba.hba_eq_hdl) {
6792                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6793                                 "2572 Failed allocate memory for "
6794                                 "fast-path per-EQ handle array\n");
6795                 rc = -ENOMEM;
6796                 goto out_free_fcf_rr_bmask;
6797         }
6798
6799         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6800                                         sizeof(struct lpfc_vector_map_info),
6801                                         GFP_KERNEL);
6802         if (!phba->sli4_hba.cpu_map) {
6803                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6804                                 "3327 Failed allocate memory for msi-x "
6805                                 "interrupt vector mapping\n");
6806                 rc = -ENOMEM;
6807                 goto out_free_hba_eq_hdl;
6808         }
6809
6810         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6811         if (!phba->sli4_hba.eq_info) {
6812                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6813                                 "3321 Failed allocation for per_cpu stats\n");
6814                 rc = -ENOMEM;
6815                 goto out_free_hba_cpu_map;
6816         }
6817         /*
6818          * Enable sr-iov virtual functions if supported and configured
6819          * through the module parameter.
6820          */
6821         if (phba->cfg_sriov_nr_virtfn > 0) {
6822                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6823                                                  phba->cfg_sriov_nr_virtfn);
6824                 if (rc) {
6825                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6826                                         "3020 Requested number of SR-IOV "
6827                                         "virtual functions (%d) is not "
6828                                         "supported\n",
6829                                         phba->cfg_sriov_nr_virtfn);
6830                         phba->cfg_sriov_nr_virtfn = 0;
6831                 }
6832         }
6833
6834         return 0;
6835
6836 out_free_hba_cpu_map:
6837         kfree(phba->sli4_hba.cpu_map);
6838 out_free_hba_eq_hdl:
6839         kfree(phba->sli4_hba.hba_eq_hdl);
6840 out_free_fcf_rr_bmask:
6841         kfree(phba->fcf.fcf_rr_bmask);
6842 out_remove_rpi_hdrs:
6843         lpfc_sli4_remove_rpi_hdrs(phba);
6844 out_free_active_sgl:
6845         lpfc_free_active_sgl(phba);
6846 out_destroy_cq_event_pool:
6847         lpfc_sli4_cq_event_pool_destroy(phba);
6848 out_free_bsmbx:
6849         lpfc_destroy_bootstrap_mbox(phba);
6850 out_free_mem:
6851         lpfc_mem_free(phba);
6852         return rc;
6853 }
6854
6855 /**
6856  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6857  * @phba: pointer to lpfc hba data structure.
6858  *
6859  * This routine is invoked to unset the driver internal resources set up
6860  * specific for supporting the SLI-4 HBA device it attached to.
6861  **/
6862 static void
6863 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6864 {
6865         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6866
6867         free_percpu(phba->sli4_hba.eq_info);
6868
6869         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6870         kfree(phba->sli4_hba.cpu_map);
6871         phba->sli4_hba.num_possible_cpu = 0;
6872         phba->sli4_hba.num_present_cpu = 0;
6873         phba->sli4_hba.curr_disp_cpu = 0;
6874
6875         /* Free memory allocated for fast-path work queue handles */
6876         kfree(phba->sli4_hba.hba_eq_hdl);
6877
6878         /* Free the allocated rpi headers. */
6879         lpfc_sli4_remove_rpi_hdrs(phba);
6880         lpfc_sli4_remove_rpis(phba);
6881
6882         /* Free eligible FCF index bmask */
6883         kfree(phba->fcf.fcf_rr_bmask);
6884
6885         /* Free the ELS sgl list */
6886         lpfc_free_active_sgl(phba);
6887         lpfc_free_els_sgl_list(phba);
6888         lpfc_free_nvmet_sgl_list(phba);
6889
6890         /* Free the completion queue EQ event pool */
6891         lpfc_sli4_cq_event_release_all(phba);
6892         lpfc_sli4_cq_event_pool_destroy(phba);
6893
6894         /* Release resource identifiers. */
6895         lpfc_sli4_dealloc_resource_identifiers(phba);
6896
6897         /* Free the bsmbx region. */
6898         lpfc_destroy_bootstrap_mbox(phba);
6899
6900         /* Free the SLI Layer memory with SLI4 HBAs */
6901         lpfc_mem_free_all(phba);
6902
6903         /* Free the current connect table */
6904         list_for_each_entry_safe(conn_entry, next_conn_entry,
6905                 &phba->fcf_conn_rec_list, list) {
6906                 list_del_init(&conn_entry->list);
6907                 kfree(conn_entry);
6908         }
6909
6910         return;
6911 }
6912
6913 /**
6914  * lpfc_init_api_table_setup - Set up init api function jump table
6915  * @phba: The hba struct for which this call is being executed.
6916  * @dev_grp: The HBA PCI-Device group number.
6917  *
6918  * This routine sets up the device INIT interface API function jump table
6919  * in @phba struct.
6920  *
6921  * Returns: 0 - success, -ENODEV - failure.
6922  **/
6923 int
6924 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6925 {
6926         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6927         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6928         phba->lpfc_selective_reset = lpfc_selective_reset;
6929         switch (dev_grp) {
6930         case LPFC_PCI_DEV_LP:
6931                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6932                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6933                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6934                 break;
6935         case LPFC_PCI_DEV_OC:
6936                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6937                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6938                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6939                 break;
6940         default:
6941                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6943                                 dev_grp);
6944                 return -ENODEV;
6945                 break;
6946         }
6947         return 0;
6948 }
6949
6950 /**
6951  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6952  * @phba: pointer to lpfc hba data structure.
6953  *
6954  * This routine is invoked to set up the driver internal resources after the
6955  * device specific resource setup to support the HBA device it attached to.
6956  *
6957  * Return codes
6958  *      0 - successful
6959  *      other values - error
6960  **/
6961 static int
6962 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6963 {
6964         int error;
6965
6966         /* Startup the kernel thread for this host adapter. */
6967         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6968                                           "lpfc_worker_%d", phba->brd_no);
6969         if (IS_ERR(phba->worker_thread)) {
6970                 error = PTR_ERR(phba->worker_thread);
6971                 return error;
6972         }
6973
6974         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6975         if (phba->sli_rev == LPFC_SLI_REV4)
6976                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6977         else
6978                 phba->wq = NULL;
6979
6980         return 0;
6981 }
6982
6983 /**
6984  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6985  * @phba: pointer to lpfc hba data structure.
6986  *
6987  * This routine is invoked to unset the driver internal resources set up after
6988  * the device specific resource setup for supporting the HBA device it
6989  * attached to.
6990  **/
6991 static void
6992 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6993 {
6994         if (phba->wq) {
6995                 flush_workqueue(phba->wq);
6996                 destroy_workqueue(phba->wq);
6997                 phba->wq = NULL;
6998         }
6999
7000         /* Stop kernel worker thread */
7001         if (phba->worker_thread)
7002                 kthread_stop(phba->worker_thread);
7003 }
7004
7005 /**
7006  * lpfc_free_iocb_list - Free iocb list.
7007  * @phba: pointer to lpfc hba data structure.
7008  *
7009  * This routine is invoked to free the driver's IOCB list and memory.
7010  **/
7011 void
7012 lpfc_free_iocb_list(struct lpfc_hba *phba)
7013 {
7014         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7015
7016         spin_lock_irq(&phba->hbalock);
7017         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7018                                  &phba->lpfc_iocb_list, list) {
7019                 list_del(&iocbq_entry->list);
7020                 kfree(iocbq_entry);
7021                 phba->total_iocbq_bufs--;
7022         }
7023         spin_unlock_irq(&phba->hbalock);
7024
7025         return;
7026 }
7027
7028 /**
7029  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7030  * @phba: pointer to lpfc hba data structure.
7031  *
7032  * This routine is invoked to allocate and initizlize the driver's IOCB
7033  * list and set up the IOCB tag array accordingly.
7034  *
7035  * Return codes
7036  *      0 - successful
7037  *      other values - error
7038  **/
7039 int
7040 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7041 {
7042         struct lpfc_iocbq *iocbq_entry = NULL;
7043         uint16_t iotag;
7044         int i;
7045
7046         /* Initialize and populate the iocb list per host.  */
7047         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7048         for (i = 0; i < iocb_count; i++) {
7049                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7050                 if (iocbq_entry == NULL) {
7051                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7052                                 "expected %d count. Unloading driver.\n",
7053                                 __func__, i, LPFC_IOCB_LIST_CNT);
7054                         goto out_free_iocbq;
7055                 }
7056
7057                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7058                 if (iotag == 0) {
7059                         kfree(iocbq_entry);
7060                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7061                                 "Unloading driver.\n", __func__);
7062                         goto out_free_iocbq;
7063                 }
7064                 iocbq_entry->sli4_lxritag = NO_XRI;
7065                 iocbq_entry->sli4_xritag = NO_XRI;
7066
7067                 spin_lock_irq(&phba->hbalock);
7068                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7069                 phba->total_iocbq_bufs++;
7070                 spin_unlock_irq(&phba->hbalock);
7071         }
7072
7073         return 0;
7074
7075 out_free_iocbq:
7076         lpfc_free_iocb_list(phba);
7077
7078         return -ENOMEM;
7079 }
7080
7081 /**
7082  * lpfc_free_sgl_list - Free a given sgl list.
7083  * @phba: pointer to lpfc hba data structure.
7084  * @sglq_list: pointer to the head of sgl list.
7085  *
7086  * This routine is invoked to free a give sgl list and memory.
7087  **/
7088 void
7089 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7090 {
7091         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7092
7093         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7094                 list_del(&sglq_entry->list);
7095                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7096                 kfree(sglq_entry);
7097         }
7098 }
7099
7100 /**
7101  * lpfc_free_els_sgl_list - Free els sgl list.
7102  * @phba: pointer to lpfc hba data structure.
7103  *
7104  * This routine is invoked to free the driver's els sgl list and memory.
7105  **/
7106 static void
7107 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7108 {
7109         LIST_HEAD(sglq_list);
7110
7111         /* Retrieve all els sgls from driver list */
7112         spin_lock_irq(&phba->hbalock);
7113         spin_lock(&phba->sli4_hba.sgl_list_lock);
7114         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7115         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7116         spin_unlock_irq(&phba->hbalock);
7117
7118         /* Now free the sgl list */
7119         lpfc_free_sgl_list(phba, &sglq_list);
7120 }
7121
7122 /**
7123  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7124  * @phba: pointer to lpfc hba data structure.
7125  *
7126  * This routine is invoked to free the driver's nvmet sgl list and memory.
7127  **/
7128 static void
7129 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7130 {
7131         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7132         LIST_HEAD(sglq_list);
7133
7134         /* Retrieve all nvmet sgls from driver list */
7135         spin_lock_irq(&phba->hbalock);
7136         spin_lock(&phba->sli4_hba.sgl_list_lock);
7137         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7138         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7139         spin_unlock_irq(&phba->hbalock);
7140
7141         /* Now free the sgl list */
7142         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7143                 list_del(&sglq_entry->list);
7144                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7145                 kfree(sglq_entry);
7146         }
7147
7148         /* Update the nvmet_xri_cnt to reflect no current sgls.
7149          * The next initialization cycle sets the count and allocates
7150          * the sgls over again.
7151          */
7152         phba->sli4_hba.nvmet_xri_cnt = 0;
7153 }
7154
7155 /**
7156  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7157  * @phba: pointer to lpfc hba data structure.
7158  *
7159  * This routine is invoked to allocate the driver's active sgl memory.
7160  * This array will hold the sglq_entry's for active IOs.
7161  **/
7162 static int
7163 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7164 {
7165         int size;
7166         size = sizeof(struct lpfc_sglq *);
7167         size *= phba->sli4_hba.max_cfg_param.max_xri;
7168
7169         phba->sli4_hba.lpfc_sglq_active_list =
7170                 kzalloc(size, GFP_KERNEL);
7171         if (!phba->sli4_hba.lpfc_sglq_active_list)
7172                 return -ENOMEM;
7173         return 0;
7174 }
7175
7176 /**
7177  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7178  * @phba: pointer to lpfc hba data structure.
7179  *
7180  * This routine is invoked to walk through the array of active sglq entries
7181  * and free all of the resources.
7182  * This is just a place holder for now.
7183  **/
7184 static void
7185 lpfc_free_active_sgl(struct lpfc_hba *phba)
7186 {
7187         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7188 }
7189
7190 /**
7191  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7192  * @phba: pointer to lpfc hba data structure.
7193  *
7194  * This routine is invoked to allocate and initizlize the driver's sgl
7195  * list and set up the sgl xritag tag array accordingly.
7196  *
7197  **/
7198 static void
7199 lpfc_init_sgl_list(struct lpfc_hba *phba)
7200 {
7201         /* Initialize and populate the sglq list per host/VF. */
7202         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7203         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7204         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7205         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7206
7207         /* els xri-sgl book keeping */
7208         phba->sli4_hba.els_xri_cnt = 0;
7209
7210         /* nvme xri-buffer book keeping */
7211         phba->sli4_hba.io_xri_cnt = 0;
7212 }
7213
7214 /**
7215  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7216  * @phba: pointer to lpfc hba data structure.
7217  *
7218  * This routine is invoked to post rpi header templates to the
7219  * port for those SLI4 ports that do not support extents.  This routine
7220  * posts a PAGE_SIZE memory region to the port to hold up to
7221  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7222  * and should be called only when interrupts are disabled.
7223  *
7224  * Return codes
7225  *      0 - successful
7226  *      -ERROR - otherwise.
7227  **/
7228 int
7229 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7230 {
7231         int rc = 0;
7232         struct lpfc_rpi_hdr *rpi_hdr;
7233
7234         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7235         if (!phba->sli4_hba.rpi_hdrs_in_use)
7236                 return rc;
7237         if (phba->sli4_hba.extents_in_use)
7238                 return -EIO;
7239
7240         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7241         if (!rpi_hdr) {
7242                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7243                                 "0391 Error during rpi post operation\n");
7244                 lpfc_sli4_remove_rpis(phba);
7245                 rc = -ENODEV;
7246         }
7247
7248         return rc;
7249 }
7250
7251 /**
7252  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7253  * @phba: pointer to lpfc hba data structure.
7254  *
7255  * This routine is invoked to allocate a single 4KB memory region to
7256  * support rpis and stores them in the phba.  This single region
7257  * provides support for up to 64 rpis.  The region is used globally
7258  * by the device.
7259  *
7260  * Returns:
7261  *   A valid rpi hdr on success.
7262  *   A NULL pointer on any failure.
7263  **/
7264 struct lpfc_rpi_hdr *
7265 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7266 {
7267         uint16_t rpi_limit, curr_rpi_range;
7268         struct lpfc_dmabuf *dmabuf;
7269         struct lpfc_rpi_hdr *rpi_hdr;
7270
7271         /*
7272          * If the SLI4 port supports extents, posting the rpi header isn't
7273          * required.  Set the expected maximum count and let the actual value
7274          * get set when extents are fully allocated.
7275          */
7276         if (!phba->sli4_hba.rpi_hdrs_in_use)
7277                 return NULL;
7278         if (phba->sli4_hba.extents_in_use)
7279                 return NULL;
7280
7281         /* The limit on the logical index is just the max_rpi count. */
7282         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7283
7284         spin_lock_irq(&phba->hbalock);
7285         /*
7286          * Establish the starting RPI in this header block.  The starting
7287          * rpi is normalized to a zero base because the physical rpi is
7288          * port based.
7289          */
7290         curr_rpi_range = phba->sli4_hba.next_rpi;
7291         spin_unlock_irq(&phba->hbalock);
7292
7293         /* Reached full RPI range */
7294         if (curr_rpi_range == rpi_limit)
7295                 return NULL;
7296
7297         /*
7298          * First allocate the protocol header region for the port.  The
7299          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7300          */
7301         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7302         if (!dmabuf)
7303                 return NULL;
7304
7305         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
7306                                            LPFC_HDR_TEMPLATE_SIZE,
7307                                            &dmabuf->phys, GFP_KERNEL);
7308         if (!dmabuf->virt) {
7309                 rpi_hdr = NULL;
7310                 goto err_free_dmabuf;
7311         }
7312
7313         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7314                 rpi_hdr = NULL;
7315                 goto err_free_coherent;
7316         }
7317
7318         /* Save the rpi header data for cleanup later. */
7319         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7320         if (!rpi_hdr)
7321                 goto err_free_coherent;
7322
7323         rpi_hdr->dmabuf = dmabuf;
7324         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7325         rpi_hdr->page_count = 1;
7326         spin_lock_irq(&phba->hbalock);
7327
7328         /* The rpi_hdr stores the logical index only. */
7329         rpi_hdr->start_rpi = curr_rpi_range;
7330         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7331         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7332
7333         spin_unlock_irq(&phba->hbalock);
7334         return rpi_hdr;
7335
7336  err_free_coherent:
7337         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7338                           dmabuf->virt, dmabuf->phys);
7339  err_free_dmabuf:
7340         kfree(dmabuf);
7341         return NULL;
7342 }
7343
7344 /**
7345  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7346  * @phba: pointer to lpfc hba data structure.
7347  *
7348  * This routine is invoked to remove all memory resources allocated
7349  * to support rpis for SLI4 ports not supporting extents. This routine
7350  * presumes the caller has released all rpis consumed by fabric or port
7351  * logins and is prepared to have the header pages removed.
7352  **/
7353 void
7354 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7355 {
7356         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7357
7358         if (!phba->sli4_hba.rpi_hdrs_in_use)
7359                 goto exit;
7360
7361         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7362                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7363                 list_del(&rpi_hdr->list);
7364                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7365                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7366                 kfree(rpi_hdr->dmabuf);
7367                 kfree(rpi_hdr);
7368         }
7369  exit:
7370         /* There are no rpis available to the port now. */
7371         phba->sli4_hba.next_rpi = 0;
7372 }
7373
7374 /**
7375  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7376  * @pdev: pointer to pci device data structure.
7377  *
7378  * This routine is invoked to allocate the driver hba data structure for an
7379  * HBA device. If the allocation is successful, the phba reference to the
7380  * PCI device data structure is set.
7381  *
7382  * Return codes
7383  *      pointer to @phba - successful
7384  *      NULL - error
7385  **/
7386 static struct lpfc_hba *
7387 lpfc_hba_alloc(struct pci_dev *pdev)
7388 {
7389         struct lpfc_hba *phba;
7390
7391         /* Allocate memory for HBA structure */
7392         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7393         if (!phba) {
7394                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7395                 return NULL;
7396         }
7397
7398         /* Set reference to PCI device in HBA structure */
7399         phba->pcidev = pdev;
7400
7401         /* Assign an unused board number */
7402         phba->brd_no = lpfc_get_instance();
7403         if (phba->brd_no < 0) {
7404                 kfree(phba);
7405                 return NULL;
7406         }
7407         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7408
7409         spin_lock_init(&phba->ct_ev_lock);
7410         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7411
7412         return phba;
7413 }
7414
7415 /**
7416  * lpfc_hba_free - Free driver hba data structure with a device.
7417  * @phba: pointer to lpfc hba data structure.
7418  *
7419  * This routine is invoked to free the driver hba data structure with an
7420  * HBA device.
7421  **/
7422 static void
7423 lpfc_hba_free(struct lpfc_hba *phba)
7424 {
7425         if (phba->sli_rev == LPFC_SLI_REV4)
7426                 kfree(phba->sli4_hba.hdwq);
7427
7428         /* Release the driver assigned board number */
7429         idr_remove(&lpfc_hba_index, phba->brd_no);
7430
7431         /* Free memory allocated with sli3 rings */
7432         kfree(phba->sli.sli3_ring);
7433         phba->sli.sli3_ring = NULL;
7434
7435         kfree(phba);
7436         return;
7437 }
7438
7439 /**
7440  * lpfc_create_shost - Create hba physical port with associated scsi host.
7441  * @phba: pointer to lpfc hba data structure.
7442  *
7443  * This routine is invoked to create HBA physical port and associate a SCSI
7444  * host with it.
7445  *
7446  * Return codes
7447  *      0 - successful
7448  *      other values - error
7449  **/
7450 static int
7451 lpfc_create_shost(struct lpfc_hba *phba)
7452 {
7453         struct lpfc_vport *vport;
7454         struct Scsi_Host  *shost;
7455
7456         /* Initialize HBA FC structure */
7457         phba->fc_edtov = FF_DEF_EDTOV;
7458         phba->fc_ratov = FF_DEF_RATOV;
7459         phba->fc_altov = FF_DEF_ALTOV;
7460         phba->fc_arbtov = FF_DEF_ARBTOV;
7461
7462         atomic_set(&phba->sdev_cnt, 0);
7463         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7464         if (!vport)
7465                 return -ENODEV;
7466
7467         shost = lpfc_shost_from_vport(vport);
7468         phba->pport = vport;
7469
7470         if (phba->nvmet_support) {
7471                 /* Only 1 vport (pport) will support NVME target */
7472                 if (phba->txrdy_payload_pool == NULL) {
7473                         phba->txrdy_payload_pool = dma_pool_create(
7474                                 "txrdy_pool", &phba->pcidev->dev,
7475                                 TXRDY_PAYLOAD_LEN, 16, 0);
7476                         if (phba->txrdy_payload_pool) {
7477                                 phba->targetport = NULL;
7478                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7479                                 lpfc_printf_log(phba, KERN_INFO,
7480                                                 LOG_INIT | LOG_NVME_DISC,
7481                                                 "6076 NVME Target Found\n");
7482                         }
7483                 }
7484         }
7485
7486         lpfc_debugfs_initialize(vport);
7487         /* Put reference to SCSI host to driver's device private data */
7488         pci_set_drvdata(phba->pcidev, shost);
7489
7490         /*
7491          * At this point we are fully registered with PSA. In addition,
7492          * any initial discovery should be completed.
7493          */
7494         vport->load_flag |= FC_ALLOW_FDMI;
7495         if (phba->cfg_enable_SmartSAN ||
7496             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7497
7498                 /* Setup appropriate attribute masks */
7499                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7500                 if (phba->cfg_enable_SmartSAN)
7501                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7502                 else
7503                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7504         }
7505         return 0;
7506 }
7507
7508 /**
7509  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7510  * @phba: pointer to lpfc hba data structure.
7511  *
7512  * This routine is invoked to destroy HBA physical port and the associated
7513  * SCSI host.
7514  **/
7515 static void
7516 lpfc_destroy_shost(struct lpfc_hba *phba)
7517 {
7518         struct lpfc_vport *vport = phba->pport;
7519
7520         /* Destroy physical port that associated with the SCSI host */
7521         destroy_port(vport);
7522
7523         return;
7524 }
7525
7526 /**
7527  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7528  * @phba: pointer to lpfc hba data structure.
7529  * @shost: the shost to be used to detect Block guard settings.
7530  *
7531  * This routine sets up the local Block guard protocol settings for @shost.
7532  * This routine also allocates memory for debugging bg buffers.
7533  **/
7534 static void
7535 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7536 {
7537         uint32_t old_mask;
7538         uint32_t old_guard;
7539
7540         int pagecnt = 10;
7541         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7542                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7543                                 "1478 Registering BlockGuard with the "
7544                                 "SCSI layer\n");
7545
7546                 old_mask = phba->cfg_prot_mask;
7547                 old_guard = phba->cfg_prot_guard;
7548
7549                 /* Only allow supported values */
7550                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7551                         SHOST_DIX_TYPE0_PROTECTION |
7552                         SHOST_DIX_TYPE1_PROTECTION);
7553                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7554                                          SHOST_DIX_GUARD_CRC);
7555
7556                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7557                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7558                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7559
7560                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7561                         if ((old_mask != phba->cfg_prot_mask) ||
7562                                 (old_guard != phba->cfg_prot_guard))
7563                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7564                                         "1475 Registering BlockGuard with the "
7565                                         "SCSI layer: mask %d  guard %d\n",
7566                                         phba->cfg_prot_mask,
7567                                         phba->cfg_prot_guard);
7568
7569                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7570                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7571                 } else
7572                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7573                                 "1479 Not Registering BlockGuard with the SCSI "
7574                                 "layer, Bad protection parameters: %d %d\n",
7575                                 old_mask, old_guard);
7576         }
7577
7578         if (!_dump_buf_data) {
7579                 while (pagecnt) {
7580                         spin_lock_init(&_dump_buf_lock);
7581                         _dump_buf_data =
7582                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7583                         if (_dump_buf_data) {
7584                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7585                                         "9043 BLKGRD: allocated %d pages for "
7586                                        "_dump_buf_data at 0x%p\n",
7587                                        (1 << pagecnt), _dump_buf_data);
7588                                 _dump_buf_data_order = pagecnt;
7589                                 memset(_dump_buf_data, 0,
7590                                        ((1 << PAGE_SHIFT) << pagecnt));
7591                                 break;
7592                         } else
7593                                 --pagecnt;
7594                 }
7595                 if (!_dump_buf_data_order)
7596                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7597                                 "9044 BLKGRD: ERROR unable to allocate "
7598                                "memory for hexdump\n");
7599         } else
7600                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7601                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7602                        "\n", _dump_buf_data);
7603         if (!_dump_buf_dif) {
7604                 while (pagecnt) {
7605                         _dump_buf_dif =
7606                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7607                         if (_dump_buf_dif) {
7608                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7609                                         "9046 BLKGRD: allocated %d pages for "
7610                                        "_dump_buf_dif at 0x%p\n",
7611                                        (1 << pagecnt), _dump_buf_dif);
7612                                 _dump_buf_dif_order = pagecnt;
7613                                 memset(_dump_buf_dif, 0,
7614                                        ((1 << PAGE_SHIFT) << pagecnt));
7615                                 break;
7616                         } else
7617                                 --pagecnt;
7618                 }
7619                 if (!_dump_buf_dif_order)
7620                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7621                         "9047 BLKGRD: ERROR unable to allocate "
7622                                "memory for hexdump\n");
7623         } else
7624                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7625                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7626                        _dump_buf_dif);
7627 }
7628
7629 /**
7630  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7631  * @phba: pointer to lpfc hba data structure.
7632  *
7633  * This routine is invoked to perform all the necessary post initialization
7634  * setup for the device.
7635  **/
7636 static void
7637 lpfc_post_init_setup(struct lpfc_hba *phba)
7638 {
7639         struct Scsi_Host  *shost;
7640         struct lpfc_adapter_event_header adapter_event;
7641
7642         /* Get the default values for Model Name and Description */
7643         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7644
7645         /*
7646          * hba setup may have changed the hba_queue_depth so we need to
7647          * adjust the value of can_queue.
7648          */
7649         shost = pci_get_drvdata(phba->pcidev);
7650         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7651         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7652                 lpfc_setup_bg(phba, shost);
7653
7654         lpfc_host_attrib_init(shost);
7655
7656         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7657                 spin_lock_irq(shost->host_lock);
7658                 lpfc_poll_start_timer(phba);
7659                 spin_unlock_irq(shost->host_lock);
7660         }
7661
7662         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7663                         "0428 Perform SCSI scan\n");
7664         /* Send board arrival event to upper layer */
7665         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7666         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7667         fc_host_post_vendor_event(shost, fc_get_event_number(),
7668                                   sizeof(adapter_event),
7669                                   (char *) &adapter_event,
7670                                   LPFC_NL_VENDOR_ID);
7671         return;
7672 }
7673
7674 /**
7675  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7676  * @phba: pointer to lpfc hba data structure.
7677  *
7678  * This routine is invoked to set up the PCI device memory space for device
7679  * with SLI-3 interface spec.
7680  *
7681  * Return codes
7682  *      0 - successful
7683  *      other values - error
7684  **/
7685 static int
7686 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7687 {
7688         struct pci_dev *pdev = phba->pcidev;
7689         unsigned long bar0map_len, bar2map_len;
7690         int i, hbq_count;
7691         void *ptr;
7692         int error = -ENODEV;
7693
7694         if (!pdev)
7695                 return error;
7696
7697         /* Set the device DMA mask size */
7698         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
7699             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7700                 return error;
7701
7702         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7703          * required by each mapping.
7704          */
7705         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7706         bar0map_len = pci_resource_len(pdev, 0);
7707
7708         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7709         bar2map_len = pci_resource_len(pdev, 2);
7710
7711         /* Map HBA SLIM to a kernel virtual address. */
7712         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7713         if (!phba->slim_memmap_p) {
7714                 dev_printk(KERN_ERR, &pdev->dev,
7715                            "ioremap failed for SLIM memory.\n");
7716                 goto out;
7717         }
7718
7719         /* Map HBA Control Registers to a kernel virtual address. */
7720         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7721         if (!phba->ctrl_regs_memmap_p) {
7722                 dev_printk(KERN_ERR, &pdev->dev,
7723                            "ioremap failed for HBA control registers.\n");
7724                 goto out_iounmap_slim;
7725         }
7726
7727         /* Allocate memory for SLI-2 structures */
7728         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7729                                                 &phba->slim2p.phys, GFP_KERNEL);
7730         if (!phba->slim2p.virt)
7731                 goto out_iounmap;
7732
7733         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7734         phba->mbox_ext = (phba->slim2p.virt +
7735                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7736         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7737         phba->IOCBs = (phba->slim2p.virt +
7738                        offsetof(struct lpfc_sli2_slim, IOCBs));
7739
7740         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7741                                                  lpfc_sli_hbq_size(),
7742                                                  &phba->hbqslimp.phys,
7743                                                  GFP_KERNEL);
7744         if (!phba->hbqslimp.virt)
7745                 goto out_free_slim;
7746
7747         hbq_count = lpfc_sli_hbq_count();
7748         ptr = phba->hbqslimp.virt;
7749         for (i = 0; i < hbq_count; ++i) {
7750                 phba->hbqs[i].hbq_virt = ptr;
7751                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7752                 ptr += (lpfc_hbq_defs[i]->entry_count *
7753                         sizeof(struct lpfc_hbq_entry));
7754         }
7755         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7756         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7757
7758         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7759
7760         phba->MBslimaddr = phba->slim_memmap_p;
7761         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7762         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7763         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7764         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7765
7766         return 0;
7767
7768 out_free_slim:
7769         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7770                           phba->slim2p.virt, phba->slim2p.phys);
7771 out_iounmap:
7772         iounmap(phba->ctrl_regs_memmap_p);
7773 out_iounmap_slim:
7774         iounmap(phba->slim_memmap_p);
7775 out:
7776         return error;
7777 }
7778
7779 /**
7780  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7781  * @phba: pointer to lpfc hba data structure.
7782  *
7783  * This routine is invoked to unset the PCI device memory space for device
7784  * with SLI-3 interface spec.
7785  **/
7786 static void
7787 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7788 {
7789         struct pci_dev *pdev;
7790
7791         /* Obtain PCI device reference */
7792         if (!phba->pcidev)
7793                 return;
7794         else
7795                 pdev = phba->pcidev;
7796
7797         /* Free coherent DMA memory allocated */
7798         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7799                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7800         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7801                           phba->slim2p.virt, phba->slim2p.phys);
7802
7803         /* I/O memory unmap */
7804         iounmap(phba->ctrl_regs_memmap_p);
7805         iounmap(phba->slim_memmap_p);
7806
7807         return;
7808 }
7809
7810 /**
7811  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7812  * @phba: pointer to lpfc hba data structure.
7813  *
7814  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7815  * done and check status.
7816  *
7817  * Return 0 if successful, otherwise -ENODEV.
7818  **/
7819 int
7820 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7821 {
7822         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7823         struct lpfc_register reg_data;
7824         int i, port_error = 0;
7825         uint32_t if_type;
7826
7827         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7828         memset(&reg_data, 0, sizeof(reg_data));
7829         if (!phba->sli4_hba.PSMPHRregaddr)
7830                 return -ENODEV;
7831
7832         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7833         for (i = 0; i < 3000; i++) {
7834                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7835                         &portsmphr_reg.word0) ||
7836                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7837                         /* Port has a fatal POST error, break out */
7838                         port_error = -ENODEV;
7839                         break;
7840                 }
7841                 if (LPFC_POST_STAGE_PORT_READY ==
7842                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7843                         break;
7844                 msleep(10);
7845         }
7846
7847         /*
7848          * If there was a port error during POST, then don't proceed with
7849          * other register reads as the data may not be valid.  Just exit.
7850          */
7851         if (port_error) {
7852                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7853                         "1408 Port Failed POST - portsmphr=0x%x, "
7854                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7855                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7856                         portsmphr_reg.word0,
7857                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7858                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7859                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7860                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7861                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7862                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7863                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7864                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7865         } else {
7866                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7867                                 "2534 Device Info: SLIFamily=0x%x, "
7868                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7869                                 "SLIHint_2=0x%x, FT=0x%x\n",
7870                                 bf_get(lpfc_sli_intf_sli_family,
7871                                        &phba->sli4_hba.sli_intf),
7872                                 bf_get(lpfc_sli_intf_slirev,
7873                                        &phba->sli4_hba.sli_intf),
7874                                 bf_get(lpfc_sli_intf_if_type,
7875                                        &phba->sli4_hba.sli_intf),
7876                                 bf_get(lpfc_sli_intf_sli_hint1,
7877                                        &phba->sli4_hba.sli_intf),
7878                                 bf_get(lpfc_sli_intf_sli_hint2,
7879                                        &phba->sli4_hba.sli_intf),
7880                                 bf_get(lpfc_sli_intf_func_type,
7881                                        &phba->sli4_hba.sli_intf));
7882                 /*
7883                  * Check for other Port errors during the initialization
7884                  * process.  Fail the load if the port did not come up
7885                  * correctly.
7886                  */
7887                 if_type = bf_get(lpfc_sli_intf_if_type,
7888                                  &phba->sli4_hba.sli_intf);
7889                 switch (if_type) {
7890                 case LPFC_SLI_INTF_IF_TYPE_0:
7891                         phba->sli4_hba.ue_mask_lo =
7892                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7893                         phba->sli4_hba.ue_mask_hi =
7894                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7895                         uerrlo_reg.word0 =
7896                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7897                         uerrhi_reg.word0 =
7898                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7899                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7900                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7901                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7902                                                 "1422 Unrecoverable Error "
7903                                                 "Detected during POST "
7904                                                 "uerr_lo_reg=0x%x, "
7905                                                 "uerr_hi_reg=0x%x, "
7906                                                 "ue_mask_lo_reg=0x%x, "
7907                                                 "ue_mask_hi_reg=0x%x\n",
7908                                                 uerrlo_reg.word0,
7909                                                 uerrhi_reg.word0,
7910                                                 phba->sli4_hba.ue_mask_lo,
7911                                                 phba->sli4_hba.ue_mask_hi);
7912                                 port_error = -ENODEV;
7913                         }
7914                         break;
7915                 case LPFC_SLI_INTF_IF_TYPE_2:
7916                 case LPFC_SLI_INTF_IF_TYPE_6:
7917                         /* Final checks.  The port status should be clean. */
7918                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7919                                 &reg_data.word0) ||
7920                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7921                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7922                                 phba->work_status[0] =
7923                                         readl(phba->sli4_hba.u.if_type2.
7924                                               ERR1regaddr);
7925                                 phba->work_status[1] =
7926                                         readl(phba->sli4_hba.u.if_type2.
7927                                               ERR2regaddr);
7928                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7929                                         "2888 Unrecoverable port error "
7930                                         "following POST: port status reg "
7931                                         "0x%x, port_smphr reg 0x%x, "
7932                                         "error 1=0x%x, error 2=0x%x\n",
7933                                         reg_data.word0,
7934                                         portsmphr_reg.word0,
7935                                         phba->work_status[0],
7936                                         phba->work_status[1]);
7937                                 port_error = -ENODEV;
7938                         }
7939                         break;
7940                 case LPFC_SLI_INTF_IF_TYPE_1:
7941                 default:
7942                         break;
7943                 }
7944         }
7945         return port_error;
7946 }
7947
7948 /**
7949  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7950  * @phba: pointer to lpfc hba data structure.
7951  * @if_type:  The SLI4 interface type getting configured.
7952  *
7953  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7954  * memory map.
7955  **/
7956 static void
7957 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7958 {
7959         switch (if_type) {
7960         case LPFC_SLI_INTF_IF_TYPE_0:
7961                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7962                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7963                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7964                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7965                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7966                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7967                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7968                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7969                 phba->sli4_hba.SLIINTFregaddr =
7970                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7971                 break;
7972         case LPFC_SLI_INTF_IF_TYPE_2:
7973                 phba->sli4_hba.u.if_type2.EQDregaddr =
7974                         phba->sli4_hba.conf_regs_memmap_p +
7975                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7976                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7977                         phba->sli4_hba.conf_regs_memmap_p +
7978                                                 LPFC_CTL_PORT_ER1_OFFSET;
7979                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7980                         phba->sli4_hba.conf_regs_memmap_p +
7981                                                 LPFC_CTL_PORT_ER2_OFFSET;
7982                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7983                         phba->sli4_hba.conf_regs_memmap_p +
7984                                                 LPFC_CTL_PORT_CTL_OFFSET;
7985                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7986                         phba->sli4_hba.conf_regs_memmap_p +
7987                                                 LPFC_CTL_PORT_STA_OFFSET;
7988                 phba->sli4_hba.SLIINTFregaddr =
7989                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7990                 phba->sli4_hba.PSMPHRregaddr =
7991                         phba->sli4_hba.conf_regs_memmap_p +
7992                                                 LPFC_CTL_PORT_SEM_OFFSET;
7993                 phba->sli4_hba.RQDBregaddr =
7994                         phba->sli4_hba.conf_regs_memmap_p +
7995                                                 LPFC_ULP0_RQ_DOORBELL;
7996                 phba->sli4_hba.WQDBregaddr =
7997                         phba->sli4_hba.conf_regs_memmap_p +
7998                                                 LPFC_ULP0_WQ_DOORBELL;
7999                 phba->sli4_hba.CQDBregaddr =
8000                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8001                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8002                 phba->sli4_hba.MQDBregaddr =
8003                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8004                 phba->sli4_hba.BMBXregaddr =
8005                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8006                 break;
8007         case LPFC_SLI_INTF_IF_TYPE_6:
8008                 phba->sli4_hba.u.if_type2.EQDregaddr =
8009                         phba->sli4_hba.conf_regs_memmap_p +
8010                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8011                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8012                         phba->sli4_hba.conf_regs_memmap_p +
8013                                                 LPFC_CTL_PORT_ER1_OFFSET;
8014                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8015                         phba->sli4_hba.conf_regs_memmap_p +
8016                                                 LPFC_CTL_PORT_ER2_OFFSET;
8017                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8018                         phba->sli4_hba.conf_regs_memmap_p +
8019                                                 LPFC_CTL_PORT_CTL_OFFSET;
8020                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8021                         phba->sli4_hba.conf_regs_memmap_p +
8022                                                 LPFC_CTL_PORT_STA_OFFSET;
8023                 phba->sli4_hba.PSMPHRregaddr =
8024                         phba->sli4_hba.conf_regs_memmap_p +
8025                                                 LPFC_CTL_PORT_SEM_OFFSET;
8026                 phba->sli4_hba.BMBXregaddr =
8027                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8028                 break;
8029         case LPFC_SLI_INTF_IF_TYPE_1:
8030         default:
8031                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8032                            "FATAL - unsupported SLI4 interface type - %d\n",
8033                            if_type);
8034                 break;
8035         }
8036 }
8037
8038 /**
8039  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8040  * @phba: pointer to lpfc hba data structure.
8041  *
8042  * This routine is invoked to set up SLI4 BAR1 register memory map.
8043  **/
8044 static void
8045 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8046 {
8047         switch (if_type) {
8048         case LPFC_SLI_INTF_IF_TYPE_0:
8049                 phba->sli4_hba.PSMPHRregaddr =
8050                         phba->sli4_hba.ctrl_regs_memmap_p +
8051                         LPFC_SLIPORT_IF0_SMPHR;
8052                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8053                         LPFC_HST_ISR0;
8054                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8055                         LPFC_HST_IMR0;
8056                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8057                         LPFC_HST_ISCR0;
8058                 break;
8059         case LPFC_SLI_INTF_IF_TYPE_6:
8060                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8061                         LPFC_IF6_RQ_DOORBELL;
8062                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8063                         LPFC_IF6_WQ_DOORBELL;
8064                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8065                         LPFC_IF6_CQ_DOORBELL;
8066                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8067                         LPFC_IF6_EQ_DOORBELL;
8068                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8069                         LPFC_IF6_MQ_DOORBELL;
8070                 break;
8071         case LPFC_SLI_INTF_IF_TYPE_2:
8072         case LPFC_SLI_INTF_IF_TYPE_1:
8073         default:
8074                 dev_err(&phba->pcidev->dev,
8075                            "FATAL - unsupported SLI4 interface type - %d\n",
8076                            if_type);
8077                 break;
8078         }
8079 }
8080
8081 /**
8082  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8083  * @phba: pointer to lpfc hba data structure.
8084  * @vf: virtual function number
8085  *
8086  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8087  * based on the given viftual function number, @vf.
8088  *
8089  * Return 0 if successful, otherwise -ENODEV.
8090  **/
8091 static int
8092 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8093 {
8094         if (vf > LPFC_VIR_FUNC_MAX)
8095                 return -ENODEV;
8096
8097         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8098                                 vf * LPFC_VFR_PAGE_SIZE +
8099                                         LPFC_ULP0_RQ_DOORBELL);
8100         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8101                                 vf * LPFC_VFR_PAGE_SIZE +
8102                                         LPFC_ULP0_WQ_DOORBELL);
8103         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8104                                 vf * LPFC_VFR_PAGE_SIZE +
8105                                         LPFC_EQCQ_DOORBELL);
8106         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8107         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8108                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8109         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8110                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8111         return 0;
8112 }
8113
8114 /**
8115  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8116  * @phba: pointer to lpfc hba data structure.
8117  *
8118  * This routine is invoked to create the bootstrap mailbox
8119  * region consistent with the SLI-4 interface spec.  This
8120  * routine allocates all memory necessary to communicate
8121  * mailbox commands to the port and sets up all alignment
8122  * needs.  No locks are expected to be held when calling
8123  * this routine.
8124  *
8125  * Return codes
8126  *      0 - successful
8127  *      -ENOMEM - could not allocated memory.
8128  **/
8129 static int
8130 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8131 {
8132         uint32_t bmbx_size;
8133         struct lpfc_dmabuf *dmabuf;
8134         struct dma_address *dma_address;
8135         uint32_t pa_addr;
8136         uint64_t phys_addr;
8137
8138         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8139         if (!dmabuf)
8140                 return -ENOMEM;
8141
8142         /*
8143          * The bootstrap mailbox region is comprised of 2 parts
8144          * plus an alignment restriction of 16 bytes.
8145          */
8146         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8147         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
8148                                            &dmabuf->phys, GFP_KERNEL);
8149         if (!dmabuf->virt) {
8150                 kfree(dmabuf);
8151                 return -ENOMEM;
8152         }
8153
8154         /*
8155          * Initialize the bootstrap mailbox pointers now so that the register
8156          * operations are simple later.  The mailbox dma address is required
8157          * to be 16-byte aligned.  Also align the virtual memory as each
8158          * maibox is copied into the bmbx mailbox region before issuing the
8159          * command to the port.
8160          */
8161         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8162         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8163
8164         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8165                                               LPFC_ALIGN_16_BYTE);
8166         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8167                                               LPFC_ALIGN_16_BYTE);
8168
8169         /*
8170          * Set the high and low physical addresses now.  The SLI4 alignment
8171          * requirement is 16 bytes and the mailbox is posted to the port
8172          * as two 30-bit addresses.  The other data is a bit marking whether
8173          * the 30-bit address is the high or low address.
8174          * Upcast bmbx aphys to 64bits so shift instruction compiles
8175          * clean on 32 bit machines.
8176          */
8177         dma_address = &phba->sli4_hba.bmbx.dma_address;
8178         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8179         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8180         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8181                                            LPFC_BMBX_BIT1_ADDR_HI);
8182
8183         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8184         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8185                                            LPFC_BMBX_BIT1_ADDR_LO);
8186         return 0;
8187 }
8188
8189 /**
8190  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8191  * @phba: pointer to lpfc hba data structure.
8192  *
8193  * This routine is invoked to teardown the bootstrap mailbox
8194  * region and release all host resources. This routine requires
8195  * the caller to ensure all mailbox commands recovered, no
8196  * additional mailbox comands are sent, and interrupts are disabled
8197  * before calling this routine.
8198  *
8199  **/
8200 static void
8201 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8202 {
8203         dma_free_coherent(&phba->pcidev->dev,
8204                           phba->sli4_hba.bmbx.bmbx_size,
8205                           phba->sli4_hba.bmbx.dmabuf->virt,
8206                           phba->sli4_hba.bmbx.dmabuf->phys);
8207
8208         kfree(phba->sli4_hba.bmbx.dmabuf);
8209         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8210 }
8211
8212 /**
8213  * lpfc_sli4_read_config - Get the config parameters.
8214  * @phba: pointer to lpfc hba data structure.
8215  *
8216  * This routine is invoked to read the configuration parameters from the HBA.
8217  * The configuration parameters are used to set the base and maximum values
8218  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8219  * allocation for the port.
8220  *
8221  * Return codes
8222  *      0 - successful
8223  *      -ENOMEM - No available memory
8224  *      -EIO - The mailbox failed to complete successfully.
8225  **/
8226 int
8227 lpfc_sli4_read_config(struct lpfc_hba *phba)
8228 {
8229         LPFC_MBOXQ_t *pmb;
8230         struct lpfc_mbx_read_config *rd_config;
8231         union  lpfc_sli4_cfg_shdr *shdr;
8232         uint32_t shdr_status, shdr_add_status;
8233         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8234         struct lpfc_rsrc_desc_fcfcoe *desc;
8235         char *pdesc_0;
8236         uint16_t forced_link_speed;
8237         uint32_t if_type, qmin;
8238         int length, i, rc = 0, rc2;
8239
8240         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8241         if (!pmb) {
8242                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8243                                 "2011 Unable to allocate memory for issuing "
8244                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8245                 return -ENOMEM;
8246         }
8247
8248         lpfc_read_config(phba, pmb);
8249
8250         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8251         if (rc != MBX_SUCCESS) {
8252                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8253                         "2012 Mailbox failed , mbxCmd x%x "
8254                         "READ_CONFIG, mbxStatus x%x\n",
8255                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8256                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8257                 rc = -EIO;
8258         } else {
8259                 rd_config = &pmb->u.mqe.un.rd_config;
8260                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8261                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8262                         phba->sli4_hba.lnk_info.lnk_tp =
8263                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8264                         phba->sli4_hba.lnk_info.lnk_no =
8265                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8266                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8267                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8268                                         phba->sli4_hba.lnk_info.lnk_tp,
8269                                         phba->sli4_hba.lnk_info.lnk_no);
8270                 } else
8271                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8272                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8273                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8274                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8275                         phba->bbcredit_support = 1;
8276                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8277                 }
8278
8279                 phba->sli4_hba.conf_trunk =
8280                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8281                 phba->sli4_hba.extents_in_use =
8282                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8283                 phba->sli4_hba.max_cfg_param.max_xri =
8284                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8285                 phba->sli4_hba.max_cfg_param.xri_base =
8286                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8287                 phba->sli4_hba.max_cfg_param.max_vpi =
8288                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8289                 /* Limit the max we support */
8290                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8291                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8292                 phba->sli4_hba.max_cfg_param.vpi_base =
8293                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8294                 phba->sli4_hba.max_cfg_param.max_rpi =
8295                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8296                 phba->sli4_hba.max_cfg_param.rpi_base =
8297                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8298                 phba->sli4_hba.max_cfg_param.max_vfi =
8299                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8300                 phba->sli4_hba.max_cfg_param.vfi_base =
8301                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8302                 phba->sli4_hba.max_cfg_param.max_fcfi =
8303                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8304                 phba->sli4_hba.max_cfg_param.max_eq =
8305                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8306                 phba->sli4_hba.max_cfg_param.max_rq =
8307                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8308                 phba->sli4_hba.max_cfg_param.max_wq =
8309                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8310                 phba->sli4_hba.max_cfg_param.max_cq =
8311                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8312                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8313                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8314                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8315                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8316                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8317                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8318                 phba->max_vports = phba->max_vpi;
8319                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8320                                 "2003 cfg params Extents? %d "
8321                                 "XRI(B:%d M:%d), "
8322                                 "VPI(B:%d M:%d) "
8323                                 "VFI(B:%d M:%d) "
8324                                 "RPI(B:%d M:%d) "
8325                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8326                                 phba->sli4_hba.extents_in_use,
8327                                 phba->sli4_hba.max_cfg_param.xri_base,
8328                                 phba->sli4_hba.max_cfg_param.max_xri,
8329                                 phba->sli4_hba.max_cfg_param.vpi_base,
8330                                 phba->sli4_hba.max_cfg_param.max_vpi,
8331                                 phba->sli4_hba.max_cfg_param.vfi_base,
8332                                 phba->sli4_hba.max_cfg_param.max_vfi,
8333                                 phba->sli4_hba.max_cfg_param.rpi_base,
8334                                 phba->sli4_hba.max_cfg_param.max_rpi,
8335                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8336                                 phba->sli4_hba.max_cfg_param.max_eq,
8337                                 phba->sli4_hba.max_cfg_param.max_cq,
8338                                 phba->sli4_hba.max_cfg_param.max_wq,
8339                                 phba->sli4_hba.max_cfg_param.max_rq);
8340
8341                 /*
8342                  * Calculate queue resources based on how
8343                  * many WQ/CQ/EQs are available.
8344                  */
8345                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8346                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8347                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8348                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8349                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8350                 /*
8351                  * Whats left after this can go toward NVME / FCP.
8352                  * The minus 4 accounts for ELS, NVME LS, MBOX
8353                  * plus one extra. When configured for
8354                  * NVMET, FCP io channel WQs are not created.
8355                  */
8356                 qmin -= 4;
8357
8358                 /* If NVME is configured, double the number of CQ/WQs needed */
8359                 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
8360                     !phba->nvmet_support)
8361                         qmin /= 2;
8362
8363                 /* Check to see if there is enough for NVME */
8364                 if ((phba->cfg_irq_chann > qmin) ||
8365                     (phba->cfg_hdw_queue > qmin)) {
8366                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8367                                         "2005 Reducing Queues: "
8368                                         "WQ %d CQ %d EQ %d: min %d: "
8369                                         "IRQ %d HDWQ %d\n",
8370                                         phba->sli4_hba.max_cfg_param.max_wq,
8371                                         phba->sli4_hba.max_cfg_param.max_cq,
8372                                         phba->sli4_hba.max_cfg_param.max_eq,
8373                                         qmin, phba->cfg_irq_chann,
8374                                         phba->cfg_hdw_queue);
8375
8376                         if (phba->cfg_irq_chann > qmin)
8377                                 phba->cfg_irq_chann = qmin;
8378                         if (phba->cfg_hdw_queue > qmin)
8379                                 phba->cfg_hdw_queue = qmin;
8380                 }
8381         }
8382
8383         if (rc)
8384                 goto read_cfg_out;
8385
8386         /* Update link speed if forced link speed is supported */
8387         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8388         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8389                 forced_link_speed =
8390                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8391                 if (forced_link_speed) {
8392                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8393
8394                         switch (forced_link_speed) {
8395                         case LINK_SPEED_1G:
8396                                 phba->cfg_link_speed =
8397                                         LPFC_USER_LINK_SPEED_1G;
8398                                 break;
8399                         case LINK_SPEED_2G:
8400                                 phba->cfg_link_speed =
8401                                         LPFC_USER_LINK_SPEED_2G;
8402                                 break;
8403                         case LINK_SPEED_4G:
8404                                 phba->cfg_link_speed =
8405                                         LPFC_USER_LINK_SPEED_4G;
8406                                 break;
8407                         case LINK_SPEED_8G:
8408                                 phba->cfg_link_speed =
8409                                         LPFC_USER_LINK_SPEED_8G;
8410                                 break;
8411                         case LINK_SPEED_10G:
8412                                 phba->cfg_link_speed =
8413                                         LPFC_USER_LINK_SPEED_10G;
8414                                 break;
8415                         case LINK_SPEED_16G:
8416                                 phba->cfg_link_speed =
8417                                         LPFC_USER_LINK_SPEED_16G;
8418                                 break;
8419                         case LINK_SPEED_32G:
8420                                 phba->cfg_link_speed =
8421                                         LPFC_USER_LINK_SPEED_32G;
8422                                 break;
8423                         case LINK_SPEED_64G:
8424                                 phba->cfg_link_speed =
8425                                         LPFC_USER_LINK_SPEED_64G;
8426                                 break;
8427                         case 0xffff:
8428                                 phba->cfg_link_speed =
8429                                         LPFC_USER_LINK_SPEED_AUTO;
8430                                 break;
8431                         default:
8432                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8433                                                 "0047 Unrecognized link "
8434                                                 "speed : %d\n",
8435                                                 forced_link_speed);
8436                                 phba->cfg_link_speed =
8437                                         LPFC_USER_LINK_SPEED_AUTO;
8438                         }
8439                 }
8440         }
8441
8442         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8443         length = phba->sli4_hba.max_cfg_param.max_xri -
8444                         lpfc_sli4_get_els_iocb_cnt(phba);
8445         if (phba->cfg_hba_queue_depth > length) {
8446                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8447                                 "3361 HBA queue depth changed from %d to %d\n",
8448                                 phba->cfg_hba_queue_depth, length);
8449                 phba->cfg_hba_queue_depth = length;
8450         }
8451
8452         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8453             LPFC_SLI_INTF_IF_TYPE_2)
8454                 goto read_cfg_out;
8455
8456         /* get the pf# and vf# for SLI4 if_type 2 port */
8457         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8458                   sizeof(struct lpfc_sli4_cfg_mhdr));
8459         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8460                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8461                          length, LPFC_SLI4_MBX_EMBED);
8462
8463         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8464         shdr = (union lpfc_sli4_cfg_shdr *)
8465                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8466         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8467         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8468         if (rc2 || shdr_status || shdr_add_status) {
8469                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8470                                 "3026 Mailbox failed , mbxCmd x%x "
8471                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8472                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8473                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8474                 goto read_cfg_out;
8475         }
8476
8477         /* search for fc_fcoe resrouce descriptor */
8478         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8479
8480         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8481         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8482         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8483         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8484                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8485         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8486                 goto read_cfg_out;
8487
8488         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8489                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8490                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8491                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8492                         phba->sli4_hba.iov.pf_number =
8493                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8494                         phba->sli4_hba.iov.vf_number =
8495                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8496                         break;
8497                 }
8498         }
8499
8500         if (i < LPFC_RSRC_DESC_MAX_NUM)
8501                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8502                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8503                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8504                                 phba->sli4_hba.iov.vf_number);
8505         else
8506                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8507                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8508                                 "Resource Descriptor:x%x\n",
8509                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8510
8511 read_cfg_out:
8512         mempool_free(pmb, phba->mbox_mem_pool);
8513         return rc;
8514 }
8515
8516 /**
8517  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8518  * @phba: pointer to lpfc hba data structure.
8519  *
8520  * This routine is invoked to setup the port-side endian order when
8521  * the port if_type is 0.  This routine has no function for other
8522  * if_types.
8523  *
8524  * Return codes
8525  *      0 - successful
8526  *      -ENOMEM - No available memory
8527  *      -EIO - The mailbox failed to complete successfully.
8528  **/
8529 static int
8530 lpfc_setup_endian_order(struct lpfc_hba *phba)
8531 {
8532         LPFC_MBOXQ_t *mboxq;
8533         uint32_t if_type, rc = 0;
8534         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8535                                       HOST_ENDIAN_HIGH_WORD1};
8536
8537         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8538         switch (if_type) {
8539         case LPFC_SLI_INTF_IF_TYPE_0:
8540                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8541                                                        GFP_KERNEL);
8542                 if (!mboxq) {
8543                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8544                                         "0492 Unable to allocate memory for "
8545                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8546                                         "command\n");
8547                         return -ENOMEM;
8548                 }
8549
8550                 /*
8551                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8552                  * two words to contain special data values and no other data.
8553                  */
8554                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8555                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8556                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8557                 if (rc != MBX_SUCCESS) {
8558                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8559                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8560                                         "failed with status x%x\n",
8561                                         rc);
8562                         rc = -EIO;
8563                 }
8564                 mempool_free(mboxq, phba->mbox_mem_pool);
8565                 break;
8566         case LPFC_SLI_INTF_IF_TYPE_6:
8567         case LPFC_SLI_INTF_IF_TYPE_2:
8568         case LPFC_SLI_INTF_IF_TYPE_1:
8569         default:
8570                 break;
8571         }
8572         return rc;
8573 }
8574
8575 /**
8576  * lpfc_sli4_queue_verify - Verify and update EQ counts
8577  * @phba: pointer to lpfc hba data structure.
8578  *
8579  * This routine is invoked to check the user settable queue counts for EQs.
8580  * After this routine is called the counts will be set to valid values that
8581  * adhere to the constraints of the system's interrupt vectors and the port's
8582  * queue resources.
8583  *
8584  * Return codes
8585  *      0 - successful
8586  *      -ENOMEM - No available memory
8587  **/
8588 static int
8589 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8590 {
8591         /*
8592          * Sanity check for configured queue parameters against the run-time
8593          * device parameters
8594          */
8595
8596         if (phba->nvmet_support) {
8597                 if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8598                         phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8599         }
8600         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8601                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8602
8603         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8605                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8606                         phba->cfg_nvmet_mrq);
8607
8608         /* Get EQ depth from module parameter, fake the default for now */
8609         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8610         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8611
8612         /* Get CQ depth from module parameter, fake the default for now */
8613         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8614         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8615         return 0;
8616 }
8617
8618 static int
8619 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8620 {
8621         struct lpfc_queue *qdesc;
8622
8623         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8624                                       phba->sli4_hba.cq_esize,
8625                                       LPFC_CQE_EXP_COUNT);
8626         if (!qdesc) {
8627                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8628                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8629                                 wqidx);
8630                 return 1;
8631         }
8632         qdesc->qe_valid = 1;
8633         qdesc->hdwq = wqidx;
8634         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8635         phba->sli4_hba.hdwq[wqidx].nvme_cq = qdesc;
8636
8637         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8638                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8639         if (!qdesc) {
8640                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8641                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8642                                 wqidx);
8643                 return 1;
8644         }
8645         qdesc->hdwq = wqidx;
8646         qdesc->chann = wqidx;
8647         phba->sli4_hba.hdwq[wqidx].nvme_wq = qdesc;
8648         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8649         return 0;
8650 }
8651
8652 static int
8653 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8654 {
8655         struct lpfc_queue *qdesc;
8656         uint32_t wqesize;
8657
8658         /* Create Fast Path FCP CQs */
8659         if (phba->enab_exp_wqcq_pages)
8660                 /* Increase the CQ size when WQEs contain an embedded cdb */
8661                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8662                                               phba->sli4_hba.cq_esize,
8663                                               LPFC_CQE_EXP_COUNT);
8664
8665         else
8666                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8667                                               phba->sli4_hba.cq_esize,
8668                                               phba->sli4_hba.cq_ecount);
8669         if (!qdesc) {
8670                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8671                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8672                 return 1;
8673         }
8674         qdesc->qe_valid = 1;
8675         qdesc->hdwq = wqidx;
8676         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8677         phba->sli4_hba.hdwq[wqidx].fcp_cq = qdesc;
8678
8679         /* Create Fast Path FCP WQs */
8680         if (phba->enab_exp_wqcq_pages) {
8681                 /* Increase the WQ size when WQEs contain an embedded cdb */
8682                 wqesize = (phba->fcp_embed_io) ?
8683                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8684                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8685                                               wqesize,
8686                                               LPFC_WQE_EXP_COUNT);
8687         } else
8688                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8689                                               phba->sli4_hba.wq_esize,
8690                                               phba->sli4_hba.wq_ecount);
8691
8692         if (!qdesc) {
8693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8694                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8695                                 wqidx);
8696                 return 1;
8697         }
8698         qdesc->hdwq = wqidx;
8699         qdesc->chann = wqidx;
8700         phba->sli4_hba.hdwq[wqidx].fcp_wq = qdesc;
8701         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8702         return 0;
8703 }
8704
8705 /**
8706  * lpfc_sli4_queue_create - Create all the SLI4 queues
8707  * @phba: pointer to lpfc hba data structure.
8708  *
8709  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8710  * operation. For each SLI4 queue type, the parameters such as queue entry
8711  * count (queue depth) shall be taken from the module parameter. For now,
8712  * we just use some constant number as place holder.
8713  *
8714  * Return codes
8715  *      0 - successful
8716  *      -ENOMEM - No availble memory
8717  *      -EIO - The mailbox failed to complete successfully.
8718  **/
8719 int
8720 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8721 {
8722         struct lpfc_queue *qdesc;
8723         int idx, eqidx;
8724         struct lpfc_sli4_hdw_queue *qp;
8725         struct lpfc_eq_intr_info *eqi;
8726
8727         /*
8728          * Create HBA Record arrays.
8729          * Both NVME and FCP will share that same vectors / EQs
8730          */
8731         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8732         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8733         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8734         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8735         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8736         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8737         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8738         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8739         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8740         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8741
8742         if (!phba->sli4_hba.hdwq) {
8743                 phba->sli4_hba.hdwq = kcalloc(
8744                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8745                         GFP_KERNEL);
8746                 if (!phba->sli4_hba.hdwq) {
8747                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748                                         "6427 Failed allocate memory for "
8749                                         "fast-path Hardware Queue array\n");
8750                         goto out_error;
8751                 }
8752                 /* Prepare hardware queues to take IO buffers */
8753                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8754                         qp = &phba->sli4_hba.hdwq[idx];
8755                         spin_lock_init(&qp->io_buf_list_get_lock);
8756                         spin_lock_init(&qp->io_buf_list_put_lock);
8757                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8758                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8759                         qp->get_io_bufs = 0;
8760                         qp->put_io_bufs = 0;
8761                         qp->total_io_bufs = 0;
8762                         spin_lock_init(&qp->abts_scsi_buf_list_lock);
8763                         INIT_LIST_HEAD(&qp->lpfc_abts_scsi_buf_list);
8764                         qp->abts_scsi_io_bufs = 0;
8765                         spin_lock_init(&qp->abts_nvme_buf_list_lock);
8766                         INIT_LIST_HEAD(&qp->lpfc_abts_nvme_buf_list);
8767                         qp->abts_nvme_io_bufs = 0;
8768                 }
8769         }
8770
8771         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8772                 if (phba->nvmet_support) {
8773                         phba->sli4_hba.nvmet_cqset = kcalloc(
8774                                         phba->cfg_nvmet_mrq,
8775                                         sizeof(struct lpfc_queue *),
8776                                         GFP_KERNEL);
8777                         if (!phba->sli4_hba.nvmet_cqset) {
8778                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8779                                         "3121 Fail allocate memory for "
8780                                         "fast-path CQ set array\n");
8781                                 goto out_error;
8782                         }
8783                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8784                                         phba->cfg_nvmet_mrq,
8785                                         sizeof(struct lpfc_queue *),
8786                                         GFP_KERNEL);
8787                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8788                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8789                                         "3122 Fail allocate memory for "
8790                                         "fast-path RQ set hdr array\n");
8791                                 goto out_error;
8792                         }
8793                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8794                                         phba->cfg_nvmet_mrq,
8795                                         sizeof(struct lpfc_queue *),
8796                                         GFP_KERNEL);
8797                         if (!phba->sli4_hba.nvmet_mrq_data) {
8798                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8799                                         "3124 Fail allocate memory for "
8800                                         "fast-path RQ set data array\n");
8801                                 goto out_error;
8802                         }
8803                 }
8804         }
8805
8806         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8807
8808         /* Create HBA Event Queues (EQs) */
8809         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8810                 /*
8811                  * If there are more Hardware Queues than available
8812                  * CQs, multiple Hardware Queues may share a common EQ.
8813                  */
8814                 if (idx >= phba->cfg_irq_chann) {
8815                         /* Share an existing EQ */
8816                         eqidx = lpfc_find_eq_handle(phba, idx);
8817                         phba->sli4_hba.hdwq[idx].hba_eq =
8818                                 phba->sli4_hba.hdwq[eqidx].hba_eq;
8819                         continue;
8820                 }
8821                 /* Create an EQ */
8822                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8823                                               phba->sli4_hba.eq_esize,
8824                                               phba->sli4_hba.eq_ecount);
8825                 if (!qdesc) {
8826                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8827                                         "0497 Failed allocate EQ (%d)\n", idx);
8828                         goto out_error;
8829                 }
8830                 qdesc->qe_valid = 1;
8831                 qdesc->hdwq = idx;
8832
8833                 /* Save the CPU this EQ is affinitised to */
8834                 eqidx = lpfc_find_eq_handle(phba, idx);
8835                 qdesc->chann = lpfc_find_cpu_handle(phba, eqidx,
8836                                                     LPFC_FIND_BY_EQ);
8837                 phba->sli4_hba.hdwq[idx].hba_eq = qdesc;
8838                 qdesc->last_cpu = qdesc->chann;
8839                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8840                 list_add(&qdesc->cpu_list, &eqi->list);
8841         }
8842
8843
8844         /* Allocate SCSI SLI4 CQ/WQs */
8845         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8846                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8847                         goto out_error;
8848         }
8849
8850         /* Allocate NVME SLI4 CQ/WQs */
8851         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8852                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8853                         if (lpfc_alloc_nvme_wq_cq(phba, idx))
8854                                 goto out_error;
8855                 }
8856
8857                 if (phba->nvmet_support) {
8858                         for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8859                                 qdesc = lpfc_sli4_queue_alloc(
8860                                                       phba,
8861                                                       LPFC_DEFAULT_PAGE_SIZE,
8862                                                       phba->sli4_hba.cq_esize,
8863                                                       phba->sli4_hba.cq_ecount);
8864                                 if (!qdesc) {
8865                                         lpfc_printf_log(
8866                                                 phba, KERN_ERR, LOG_INIT,
8867                                                 "3142 Failed allocate NVME "
8868                                                 "CQ Set (%d)\n", idx);
8869                                         goto out_error;
8870                                 }
8871                                 qdesc->qe_valid = 1;
8872                                 qdesc->hdwq = idx;
8873                                 qdesc->chann = idx;
8874                                 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8875                         }
8876                 }
8877         }
8878
8879         /*
8880          * Create Slow Path Completion Queues (CQs)
8881          */
8882
8883         /* Create slow-path Mailbox Command Complete Queue */
8884         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8885                                       phba->sli4_hba.cq_esize,
8886                                       phba->sli4_hba.cq_ecount);
8887         if (!qdesc) {
8888                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8889                                 "0500 Failed allocate slow-path mailbox CQ\n");
8890                 goto out_error;
8891         }
8892         qdesc->qe_valid = 1;
8893         phba->sli4_hba.mbx_cq = qdesc;
8894
8895         /* Create slow-path ELS Complete Queue */
8896         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8897                                       phba->sli4_hba.cq_esize,
8898                                       phba->sli4_hba.cq_ecount);
8899         if (!qdesc) {
8900                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8901                                 "0501 Failed allocate slow-path ELS CQ\n");
8902                 goto out_error;
8903         }
8904         qdesc->qe_valid = 1;
8905         qdesc->chann = 0;
8906         phba->sli4_hba.els_cq = qdesc;
8907
8908
8909         /*
8910          * Create Slow Path Work Queues (WQs)
8911          */
8912
8913         /* Create Mailbox Command Queue */
8914
8915         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8916                                       phba->sli4_hba.mq_esize,
8917                                       phba->sli4_hba.mq_ecount);
8918         if (!qdesc) {
8919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8920                                 "0505 Failed allocate slow-path MQ\n");
8921                 goto out_error;
8922         }
8923         qdesc->chann = 0;
8924         phba->sli4_hba.mbx_wq = qdesc;
8925
8926         /*
8927          * Create ELS Work Queues
8928          */
8929
8930         /* Create slow-path ELS Work Queue */
8931         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8932                                       phba->sli4_hba.wq_esize,
8933                                       phba->sli4_hba.wq_ecount);
8934         if (!qdesc) {
8935                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8936                                 "0504 Failed allocate slow-path ELS WQ\n");
8937                 goto out_error;
8938         }
8939         qdesc->chann = 0;
8940         phba->sli4_hba.els_wq = qdesc;
8941         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8942
8943         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8944                 /* Create NVME LS Complete Queue */
8945                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8946                                               phba->sli4_hba.cq_esize,
8947                                               phba->sli4_hba.cq_ecount);
8948                 if (!qdesc) {
8949                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8950                                         "6079 Failed allocate NVME LS CQ\n");
8951                         goto out_error;
8952                 }
8953                 qdesc->chann = 0;
8954                 qdesc->qe_valid = 1;
8955                 phba->sli4_hba.nvmels_cq = qdesc;
8956
8957                 /* Create NVME LS Work Queue */
8958                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8959                                               phba->sli4_hba.wq_esize,
8960                                               phba->sli4_hba.wq_ecount);
8961                 if (!qdesc) {
8962                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8963                                         "6080 Failed allocate NVME LS WQ\n");
8964                         goto out_error;
8965                 }
8966                 qdesc->chann = 0;
8967                 phba->sli4_hba.nvmels_wq = qdesc;
8968                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8969         }
8970
8971         /*
8972          * Create Receive Queue (RQ)
8973          */
8974
8975         /* Create Receive Queue for header */
8976         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8977                                       phba->sli4_hba.rq_esize,
8978                                       phba->sli4_hba.rq_ecount);
8979         if (!qdesc) {
8980                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8981                                 "0506 Failed allocate receive HRQ\n");
8982                 goto out_error;
8983         }
8984         phba->sli4_hba.hdr_rq = qdesc;
8985
8986         /* Create Receive Queue for data */
8987         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8988                                       phba->sli4_hba.rq_esize,
8989                                       phba->sli4_hba.rq_ecount);
8990         if (!qdesc) {
8991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8992                                 "0507 Failed allocate receive DRQ\n");
8993                 goto out_error;
8994         }
8995         phba->sli4_hba.dat_rq = qdesc;
8996
8997         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
8998             phba->nvmet_support) {
8999                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9000                         /* Create NVMET Receive Queue for header */
9001                         qdesc = lpfc_sli4_queue_alloc(phba,
9002                                                       LPFC_DEFAULT_PAGE_SIZE,
9003                                                       phba->sli4_hba.rq_esize,
9004                                                       LPFC_NVMET_RQE_DEF_COUNT);
9005                         if (!qdesc) {
9006                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9007                                                 "3146 Failed allocate "
9008                                                 "receive HRQ\n");
9009                                 goto out_error;
9010                         }
9011                         qdesc->hdwq = idx;
9012                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9013
9014                         /* Only needed for header of RQ pair */
9015                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
9016                                               GFP_KERNEL);
9017                         if (qdesc->rqbp == NULL) {
9018                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9019                                                 "6131 Failed allocate "
9020                                                 "Header RQBP\n");
9021                                 goto out_error;
9022                         }
9023
9024                         /* Put list in known state in case driver load fails. */
9025                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9026
9027                         /* Create NVMET Receive Queue for data */
9028                         qdesc = lpfc_sli4_queue_alloc(phba,
9029                                                       LPFC_DEFAULT_PAGE_SIZE,
9030                                                       phba->sli4_hba.rq_esize,
9031                                                       LPFC_NVMET_RQE_DEF_COUNT);
9032                         if (!qdesc) {
9033                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9034                                                 "3156 Failed allocate "
9035                                                 "receive DRQ\n");
9036                                 goto out_error;
9037                         }
9038                         qdesc->hdwq = idx;
9039                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9040                 }
9041         }
9042
9043 #if defined(BUILD_NVME)
9044         /* Clear NVME stats */
9045         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9046                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9047                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9048                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9049                 }
9050         }
9051 #endif
9052
9053         /* Clear SCSI stats */
9054         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9055                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9056                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9057                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9058                 }
9059         }
9060
9061         return 0;
9062
9063 out_error:
9064         lpfc_sli4_queue_destroy(phba);
9065         return -ENOMEM;
9066 }
9067
9068 static inline void
9069 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9070 {
9071         if (*qp != NULL) {
9072                 lpfc_sli4_queue_free(*qp);
9073                 *qp = NULL;
9074         }
9075 }
9076
9077 static inline void
9078 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9079 {
9080         int idx;
9081
9082         if (*qs == NULL)
9083                 return;
9084
9085         for (idx = 0; idx < max; idx++)
9086                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9087
9088         kfree(*qs);
9089         *qs = NULL;
9090 }
9091
9092 static inline void
9093 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9094 {
9095         struct lpfc_sli4_hdw_queue *hdwq;
9096         uint32_t idx;
9097
9098         hdwq = phba->sli4_hba.hdwq;
9099         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9100                 if (idx < phba->cfg_irq_chann)
9101                         lpfc_sli4_queue_free(hdwq[idx].hba_eq);
9102                 hdwq[idx].hba_eq = NULL;
9103
9104                 lpfc_sli4_queue_free(hdwq[idx].fcp_cq);
9105                 lpfc_sli4_queue_free(hdwq[idx].nvme_cq);
9106                 lpfc_sli4_queue_free(hdwq[idx].fcp_wq);
9107                 lpfc_sli4_queue_free(hdwq[idx].nvme_wq);
9108                 hdwq[idx].fcp_cq = NULL;
9109                 hdwq[idx].nvme_cq = NULL;
9110                 hdwq[idx].fcp_wq = NULL;
9111                 hdwq[idx].nvme_wq = NULL;
9112         }
9113 }
9114
9115 /**
9116  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9117  * @phba: pointer to lpfc hba data structure.
9118  *
9119  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9120  * operation.
9121  *
9122  * Return codes
9123  *      0 - successful
9124  *      -ENOMEM - No available memory
9125  *      -EIO - The mailbox failed to complete successfully.
9126  **/
9127 void
9128 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9129 {
9130         /* Release HBA eqs */
9131         if (phba->sli4_hba.hdwq)
9132                 lpfc_sli4_release_hdwq(phba);
9133
9134         if (phba->nvmet_support) {
9135                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9136                                          phba->cfg_nvmet_mrq);
9137
9138                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9139                                          phba->cfg_nvmet_mrq);
9140                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9141                                          phba->cfg_nvmet_mrq);
9142         }
9143
9144         /* Release mailbox command work queue */
9145         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9146
9147         /* Release ELS work queue */
9148         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9149
9150         /* Release ELS work queue */
9151         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9152
9153         /* Release unsolicited receive queue */
9154         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9155         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9156
9157         /* Release ELS complete queue */
9158         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9159
9160         /* Release NVME LS complete queue */
9161         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9162
9163         /* Release mailbox command complete queue */
9164         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9165
9166         /* Everything on this list has been freed */
9167         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9168 }
9169
9170 int
9171 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9172 {
9173         struct lpfc_rqb *rqbp;
9174         struct lpfc_dmabuf *h_buf;
9175         struct rqb_dmabuf *rqb_buffer;
9176
9177         rqbp = rq->rqbp;
9178         while (!list_empty(&rqbp->rqb_buffer_list)) {
9179                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9180                                  struct lpfc_dmabuf, list);
9181
9182                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9183                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9184                 rqbp->buffer_count--;
9185         }
9186         return 1;
9187 }
9188
9189 static int
9190 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9191         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9192         int qidx, uint32_t qtype)
9193 {
9194         struct lpfc_sli_ring *pring;
9195         int rc;
9196
9197         if (!eq || !cq || !wq) {
9198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9199                         "6085 Fast-path %s (%d) not allocated\n",
9200                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9201                 return -ENOMEM;
9202         }
9203
9204         /* create the Cq first */
9205         rc = lpfc_cq_create(phba, cq, eq,
9206                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9207         if (rc) {
9208                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9209                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9210                         qidx, (uint32_t)rc);
9211                 return rc;
9212         }
9213
9214         if (qtype != LPFC_MBOX) {
9215                 /* Setup cq_map for fast lookup */
9216                 if (cq_map)
9217                         *cq_map = cq->queue_id;
9218
9219                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9220                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9221                         qidx, cq->queue_id, qidx, eq->queue_id);
9222
9223                 /* create the wq */
9224                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9225                 if (rc) {
9226                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9227                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9228                                 qidx, (uint32_t)rc);
9229                         /* no need to tear down cq - caller will do so */
9230                         return rc;
9231                 }
9232
9233                 /* Bind this CQ/WQ to the NVME ring */
9234                 pring = wq->pring;
9235                 pring->sli.sli4.wqp = (void *)wq;
9236                 cq->pring = pring;
9237
9238                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9239                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9240                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9241         } else {
9242                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9243                 if (rc) {
9244                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9245                                 "0539 Failed setup of slow-path MQ: "
9246                                 "rc = 0x%x\n", rc);
9247                         /* no need to tear down cq - caller will do so */
9248                         return rc;
9249                 }
9250
9251                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9252                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9253                         phba->sli4_hba.mbx_wq->queue_id,
9254                         phba->sli4_hba.mbx_cq->queue_id);
9255         }
9256
9257         return 0;
9258 }
9259
9260 /**
9261  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9262  * @phba: pointer to lpfc hba data structure.
9263  *
9264  * This routine will populate the cq_lookup table by all
9265  * available CQ queue_id's.
9266  **/
9267 void
9268 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9269 {
9270         struct lpfc_queue *eq, *childq;
9271         struct lpfc_sli4_hdw_queue *qp;
9272         int qidx;
9273
9274         qp = phba->sli4_hba.hdwq;
9275         memset(phba->sli4_hba.cq_lookup, 0,
9276                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9277         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9278                 eq = qp[qidx].hba_eq;
9279                 if (!eq)
9280                         continue;
9281                 list_for_each_entry(childq, &eq->child_list, list) {
9282                         if (childq->queue_id > phba->sli4_hba.cq_max)
9283                                 continue;
9284                         if ((childq->subtype == LPFC_FCP) ||
9285                             (childq->subtype == LPFC_NVME))
9286                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9287                                         childq;
9288                 }
9289         }
9290 }
9291
9292 /**
9293  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9294  * @phba: pointer to lpfc hba data structure.
9295  *
9296  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9297  * operation.
9298  *
9299  * Return codes
9300  *      0 - successful
9301  *      -ENOMEM - No available memory
9302  *      -EIO - The mailbox failed to complete successfully.
9303  **/
9304 int
9305 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9306 {
9307         uint32_t shdr_status, shdr_add_status;
9308         union lpfc_sli4_cfg_shdr *shdr;
9309         struct lpfc_sli4_hdw_queue *qp;
9310         LPFC_MBOXQ_t *mboxq;
9311         int qidx;
9312         uint32_t length, usdelay;
9313         int rc = -ENOMEM;
9314
9315         /* Check for dual-ULP support */
9316         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9317         if (!mboxq) {
9318                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9319                                 "3249 Unable to allocate memory for "
9320                                 "QUERY_FW_CFG mailbox command\n");
9321                 return -ENOMEM;
9322         }
9323         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9324                   sizeof(struct lpfc_sli4_cfg_mhdr));
9325         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9326                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9327                          length, LPFC_SLI4_MBX_EMBED);
9328
9329         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9330
9331         shdr = (union lpfc_sli4_cfg_shdr *)
9332                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9333         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9334         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9335         if (shdr_status || shdr_add_status || rc) {
9336                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9337                                 "3250 QUERY_FW_CFG mailbox failed with status "
9338                                 "x%x add_status x%x, mbx status x%x\n",
9339                                 shdr_status, shdr_add_status, rc);
9340                 if (rc != MBX_TIMEOUT)
9341                         mempool_free(mboxq, phba->mbox_mem_pool);
9342                 rc = -ENXIO;
9343                 goto out_error;
9344         }
9345
9346         phba->sli4_hba.fw_func_mode =
9347                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9348         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9349         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9350         phba->sli4_hba.physical_port =
9351                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9352         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9353                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9354                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9355                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9356
9357         if (rc != MBX_TIMEOUT)
9358                 mempool_free(mboxq, phba->mbox_mem_pool);
9359
9360         /*
9361          * Set up HBA Event Queues (EQs)
9362          */
9363         qp = phba->sli4_hba.hdwq;
9364
9365         /* Set up HBA event queue */
9366         if (!qp) {
9367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9368                                 "3147 Fast-path EQs not allocated\n");
9369                 rc = -ENOMEM;
9370                 goto out_error;
9371         }
9372         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9373                 if (!qp[qidx].hba_eq) {
9374                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9375                                         "0522 Fast-path EQ (%d) not "
9376                                         "allocated\n", qidx);
9377                         rc = -ENOMEM;
9378                         goto out_destroy;
9379                 }
9380                 rc = lpfc_eq_create(phba, qp[qidx].hba_eq,
9381                                     phba->cfg_fcp_imax);
9382                 if (rc) {
9383                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9384                                         "0523 Failed setup of fast-path EQ "
9385                                         "(%d), rc = 0x%x\n", qidx,
9386                                         (uint32_t)rc);
9387                         goto out_destroy;
9388                 }
9389                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9390                                 "2584 HBA EQ setup: queue[%d]-id=%d\n", qidx,
9391                                 qp[qidx].hba_eq->queue_id);
9392         }
9393
9394         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9395                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9396                         rc = lpfc_create_wq_cq(phba,
9397                                         qp[qidx].hba_eq,
9398                                         qp[qidx].nvme_cq,
9399                                         qp[qidx].nvme_wq,
9400                                         &phba->sli4_hba.hdwq[qidx].nvme_cq_map,
9401                                         qidx, LPFC_NVME);
9402                         if (rc) {
9403                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9404                                         "6123 Failed to setup fastpath "
9405                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
9406                                         qidx, (uint32_t)rc);
9407                                 goto out_destroy;
9408                         }
9409                 }
9410         }
9411
9412         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9413                 rc = lpfc_create_wq_cq(phba,
9414                                        qp[qidx].hba_eq,
9415                                        qp[qidx].fcp_cq,
9416                                        qp[qidx].fcp_wq,
9417                                        &phba->sli4_hba.hdwq[qidx].fcp_cq_map,
9418                                        qidx, LPFC_FCP);
9419                 if (rc) {
9420                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9421                                         "0535 Failed to setup fastpath "
9422                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
9423                                         qidx, (uint32_t)rc);
9424                         goto out_destroy;
9425                 }
9426         }
9427
9428         /*
9429          * Set up Slow Path Complete Queues (CQs)
9430          */
9431
9432         /* Set up slow-path MBOX CQ/MQ */
9433
9434         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9435                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9436                                 "0528 %s not allocated\n",
9437                                 phba->sli4_hba.mbx_cq ?
9438                                 "Mailbox WQ" : "Mailbox CQ");
9439                 rc = -ENOMEM;
9440                 goto out_destroy;
9441         }
9442
9443         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9444                                phba->sli4_hba.mbx_cq,
9445                                phba->sli4_hba.mbx_wq,
9446                                NULL, 0, LPFC_MBOX);
9447         if (rc) {
9448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9449                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9450                         (uint32_t)rc);
9451                 goto out_destroy;
9452         }
9453         if (phba->nvmet_support) {
9454                 if (!phba->sli4_hba.nvmet_cqset) {
9455                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9456                                         "3165 Fast-path NVME CQ Set "
9457                                         "array not allocated\n");
9458                         rc = -ENOMEM;
9459                         goto out_destroy;
9460                 }
9461                 if (phba->cfg_nvmet_mrq > 1) {
9462                         rc = lpfc_cq_create_set(phba,
9463                                         phba->sli4_hba.nvmet_cqset,
9464                                         qp,
9465                                         LPFC_WCQ, LPFC_NVMET);
9466                         if (rc) {
9467                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9468                                                 "3164 Failed setup of NVME CQ "
9469                                                 "Set, rc = 0x%x\n",
9470                                                 (uint32_t)rc);
9471                                 goto out_destroy;
9472                         }
9473                 } else {
9474                         /* Set up NVMET Receive Complete Queue */
9475                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9476                                             qp[0].hba_eq,
9477                                             LPFC_WCQ, LPFC_NVMET);
9478                         if (rc) {
9479                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9480                                                 "6089 Failed setup NVMET CQ: "
9481                                                 "rc = 0x%x\n", (uint32_t)rc);
9482                                 goto out_destroy;
9483                         }
9484                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9485
9486                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9487                                         "6090 NVMET CQ setup: cq-id=%d, "
9488                                         "parent eq-id=%d\n",
9489                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9490                                         qp[0].hba_eq->queue_id);
9491                 }
9492         }
9493
9494         /* Set up slow-path ELS WQ/CQ */
9495         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9497                                 "0530 ELS %s not allocated\n",
9498                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9499                 rc = -ENOMEM;
9500                 goto out_destroy;
9501         }
9502         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9503                                phba->sli4_hba.els_cq,
9504                                phba->sli4_hba.els_wq,
9505                                NULL, 0, LPFC_ELS);
9506         if (rc) {
9507                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9508                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9509                                 (uint32_t)rc);
9510                 goto out_destroy;
9511         }
9512         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9513                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9514                         phba->sli4_hba.els_wq->queue_id,
9515                         phba->sli4_hba.els_cq->queue_id);
9516
9517         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9518                 /* Set up NVME LS Complete Queue */
9519                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9520                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9521                                         "6091 LS %s not allocated\n",
9522                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9523                         rc = -ENOMEM;
9524                         goto out_destroy;
9525                 }
9526                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9527                                        phba->sli4_hba.nvmels_cq,
9528                                        phba->sli4_hba.nvmels_wq,
9529                                        NULL, 0, LPFC_NVME_LS);
9530                 if (rc) {
9531                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9532                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9533                                         "rc = 0x%x\n", (uint32_t)rc);
9534                         goto out_destroy;
9535                 }
9536
9537                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9538                                 "6096 ELS WQ setup: wq-id=%d, "
9539                                 "parent cq-id=%d\n",
9540                                 phba->sli4_hba.nvmels_wq->queue_id,
9541                                 phba->sli4_hba.nvmels_cq->queue_id);
9542         }
9543
9544         /*
9545          * Create NVMET Receive Queue (RQ)
9546          */
9547         if (phba->nvmet_support) {
9548                 if ((!phba->sli4_hba.nvmet_cqset) ||
9549                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9550                     (!phba->sli4_hba.nvmet_mrq_data)) {
9551                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9552                                         "6130 MRQ CQ Queues not "
9553                                         "allocated\n");
9554                         rc = -ENOMEM;
9555                         goto out_destroy;
9556                 }
9557                 if (phba->cfg_nvmet_mrq > 1) {
9558                         rc = lpfc_mrq_create(phba,
9559                                              phba->sli4_hba.nvmet_mrq_hdr,
9560                                              phba->sli4_hba.nvmet_mrq_data,
9561                                              phba->sli4_hba.nvmet_cqset,
9562                                              LPFC_NVMET);
9563                         if (rc) {
9564                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9565                                                 "6098 Failed setup of NVMET "
9566                                                 "MRQ: rc = 0x%x\n",
9567                                                 (uint32_t)rc);
9568                                 goto out_destroy;
9569                         }
9570
9571                 } else {
9572                         rc = lpfc_rq_create(phba,
9573                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9574                                             phba->sli4_hba.nvmet_mrq_data[0],
9575                                             phba->sli4_hba.nvmet_cqset[0],
9576                                             LPFC_NVMET);
9577                         if (rc) {
9578                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9579                                                 "6057 Failed setup of NVMET "
9580                                                 "Receive Queue: rc = 0x%x\n",
9581                                                 (uint32_t)rc);
9582                                 goto out_destroy;
9583                         }
9584
9585                         lpfc_printf_log(
9586                                 phba, KERN_INFO, LOG_INIT,
9587                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9588                                 "dat-rq-id=%d parent cq-id=%d\n",
9589                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9590                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9591                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9592
9593                 }
9594         }
9595
9596         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9597                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9598                                 "0540 Receive Queue not allocated\n");
9599                 rc = -ENOMEM;
9600                 goto out_destroy;
9601         }
9602
9603         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9604                             phba->sli4_hba.els_cq, LPFC_USOL);
9605         if (rc) {
9606                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9607                                 "0541 Failed setup of Receive Queue: "
9608                                 "rc = 0x%x\n", (uint32_t)rc);
9609                 goto out_destroy;
9610         }
9611
9612         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9613                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9614                         "parent cq-id=%d\n",
9615                         phba->sli4_hba.hdr_rq->queue_id,
9616                         phba->sli4_hba.dat_rq->queue_id,
9617                         phba->sli4_hba.els_cq->queue_id);
9618
9619         if (phba->cfg_fcp_imax)
9620                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9621         else
9622                 usdelay = 0;
9623
9624         for (qidx = 0; qidx < phba->cfg_irq_chann;
9625              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9626                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9627                                          usdelay);
9628
9629         if (phba->sli4_hba.cq_max) {
9630                 kfree(phba->sli4_hba.cq_lookup);
9631                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9632                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9633                 if (!phba->sli4_hba.cq_lookup) {
9634                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9635                                         "0549 Failed setup of CQ Lookup table: "
9636                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9637                         goto out_destroy;
9638                 }
9639                 lpfc_setup_cq_lookup(phba);
9640         }
9641         return 0;
9642
9643 out_destroy:
9644         lpfc_sli4_queue_unset(phba);
9645 out_error:
9646         return rc;
9647 }
9648
9649 /**
9650  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9651  * @phba: pointer to lpfc hba data structure.
9652  *
9653  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9654  * operation.
9655  *
9656  * Return codes
9657  *      0 - successful
9658  *      -ENOMEM - No available memory
9659  *      -EIO - The mailbox failed to complete successfully.
9660  **/
9661 void
9662 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9663 {
9664         struct lpfc_sli4_hdw_queue *qp;
9665         int qidx;
9666
9667         /* Unset mailbox command work queue */
9668         if (phba->sli4_hba.mbx_wq)
9669                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9670
9671         /* Unset NVME LS work queue */
9672         if (phba->sli4_hba.nvmels_wq)
9673                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9674
9675         /* Unset ELS work queue */
9676         if (phba->sli4_hba.els_wq)
9677                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9678
9679         /* Unset unsolicited receive queue */
9680         if (phba->sli4_hba.hdr_rq)
9681                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9682                                 phba->sli4_hba.dat_rq);
9683
9684         /* Unset mailbox command complete queue */
9685         if (phba->sli4_hba.mbx_cq)
9686                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9687
9688         /* Unset ELS complete queue */
9689         if (phba->sli4_hba.els_cq)
9690                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9691
9692         /* Unset NVME LS complete queue */
9693         if (phba->sli4_hba.nvmels_cq)
9694                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9695
9696         if (phba->nvmet_support) {
9697                 /* Unset NVMET MRQ queue */
9698                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9699                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9700                                 lpfc_rq_destroy(
9701                                         phba,
9702                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9703                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9704                 }
9705
9706                 /* Unset NVMET CQ Set complete queue */
9707                 if (phba->sli4_hba.nvmet_cqset) {
9708                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9709                                 lpfc_cq_destroy(
9710                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9711                 }
9712         }
9713
9714         /* Unset fast-path SLI4 queues */
9715         if (phba->sli4_hba.hdwq) {
9716                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9717                         qp = &phba->sli4_hba.hdwq[qidx];
9718                         lpfc_wq_destroy(phba, qp->fcp_wq);
9719                         lpfc_wq_destroy(phba, qp->nvme_wq);
9720                         lpfc_cq_destroy(phba, qp->fcp_cq);
9721                         lpfc_cq_destroy(phba, qp->nvme_cq);
9722                         if (qidx < phba->cfg_irq_chann)
9723                                 lpfc_eq_destroy(phba, qp->hba_eq);
9724                 }
9725         }
9726
9727         kfree(phba->sli4_hba.cq_lookup);
9728         phba->sli4_hba.cq_lookup = NULL;
9729         phba->sli4_hba.cq_max = 0;
9730 }
9731
9732 /**
9733  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9734  * @phba: pointer to lpfc hba data structure.
9735  *
9736  * This routine is invoked to allocate and set up a pool of completion queue
9737  * events. The body of the completion queue event is a completion queue entry
9738  * CQE. For now, this pool is used for the interrupt service routine to queue
9739  * the following HBA completion queue events for the worker thread to process:
9740  *   - Mailbox asynchronous events
9741  *   - Receive queue completion unsolicited events
9742  * Later, this can be used for all the slow-path events.
9743  *
9744  * Return codes
9745  *      0 - successful
9746  *      -ENOMEM - No available memory
9747  **/
9748 static int
9749 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9750 {
9751         struct lpfc_cq_event *cq_event;
9752         int i;
9753
9754         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9755                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9756                 if (!cq_event)
9757                         goto out_pool_create_fail;
9758                 list_add_tail(&cq_event->list,
9759                               &phba->sli4_hba.sp_cqe_event_pool);
9760         }
9761         return 0;
9762
9763 out_pool_create_fail:
9764         lpfc_sli4_cq_event_pool_destroy(phba);
9765         return -ENOMEM;
9766 }
9767
9768 /**
9769  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9770  * @phba: pointer to lpfc hba data structure.
9771  *
9772  * This routine is invoked to free the pool of completion queue events at
9773  * driver unload time. Note that, it is the responsibility of the driver
9774  * cleanup routine to free all the outstanding completion-queue events
9775  * allocated from this pool back into the pool before invoking this routine
9776  * to destroy the pool.
9777  **/
9778 static void
9779 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9780 {
9781         struct lpfc_cq_event *cq_event, *next_cq_event;
9782
9783         list_for_each_entry_safe(cq_event, next_cq_event,
9784                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9785                 list_del(&cq_event->list);
9786                 kfree(cq_event);
9787         }
9788 }
9789
9790 /**
9791  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9792  * @phba: pointer to lpfc hba data structure.
9793  *
9794  * This routine is the lock free version of the API invoked to allocate a
9795  * completion-queue event from the free pool.
9796  *
9797  * Return: Pointer to the newly allocated completion-queue event if successful
9798  *         NULL otherwise.
9799  **/
9800 struct lpfc_cq_event *
9801 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9802 {
9803         struct lpfc_cq_event *cq_event = NULL;
9804
9805         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9806                          struct lpfc_cq_event, list);
9807         return cq_event;
9808 }
9809
9810 /**
9811  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9812  * @phba: pointer to lpfc hba data structure.
9813  *
9814  * This routine is the lock version of the API invoked to allocate a
9815  * completion-queue event from the free pool.
9816  *
9817  * Return: Pointer to the newly allocated completion-queue event if successful
9818  *         NULL otherwise.
9819  **/
9820 struct lpfc_cq_event *
9821 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9822 {
9823         struct lpfc_cq_event *cq_event;
9824         unsigned long iflags;
9825
9826         spin_lock_irqsave(&phba->hbalock, iflags);
9827         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9828         spin_unlock_irqrestore(&phba->hbalock, iflags);
9829         return cq_event;
9830 }
9831
9832 /**
9833  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9834  * @phba: pointer to lpfc hba data structure.
9835  * @cq_event: pointer to the completion queue event to be freed.
9836  *
9837  * This routine is the lock free version of the API invoked to release a
9838  * completion-queue event back into the free pool.
9839  **/
9840 void
9841 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9842                              struct lpfc_cq_event *cq_event)
9843 {
9844         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9845 }
9846
9847 /**
9848  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9849  * @phba: pointer to lpfc hba data structure.
9850  * @cq_event: pointer to the completion queue event to be freed.
9851  *
9852  * This routine is the lock version of the API invoked to release a
9853  * completion-queue event back into the free pool.
9854  **/
9855 void
9856 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9857                            struct lpfc_cq_event *cq_event)
9858 {
9859         unsigned long iflags;
9860         spin_lock_irqsave(&phba->hbalock, iflags);
9861         __lpfc_sli4_cq_event_release(phba, cq_event);
9862         spin_unlock_irqrestore(&phba->hbalock, iflags);
9863 }
9864
9865 /**
9866  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9867  * @phba: pointer to lpfc hba data structure.
9868  *
9869  * This routine is to free all the pending completion-queue events to the
9870  * back into the free pool for device reset.
9871  **/
9872 static void
9873 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9874 {
9875         LIST_HEAD(cqelist);
9876         struct lpfc_cq_event *cqe;
9877         unsigned long iflags;
9878
9879         /* Retrieve all the pending WCQEs from pending WCQE lists */
9880         spin_lock_irqsave(&phba->hbalock, iflags);
9881         /* Pending FCP XRI abort events */
9882         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9883                          &cqelist);
9884         /* Pending ELS XRI abort events */
9885         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9886                          &cqelist);
9887         /* Pending asynnc events */
9888         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9889                          &cqelist);
9890         spin_unlock_irqrestore(&phba->hbalock, iflags);
9891
9892         while (!list_empty(&cqelist)) {
9893                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9894                 lpfc_sli4_cq_event_release(phba, cqe);
9895         }
9896 }
9897
9898 /**
9899  * lpfc_pci_function_reset - Reset pci function.
9900  * @phba: pointer to lpfc hba data structure.
9901  *
9902  * This routine is invoked to request a PCI function reset. It will destroys
9903  * all resources assigned to the PCI function which originates this request.
9904  *
9905  * Return codes
9906  *      0 - successful
9907  *      -ENOMEM - No available memory
9908  *      -EIO - The mailbox failed to complete successfully.
9909  **/
9910 int
9911 lpfc_pci_function_reset(struct lpfc_hba *phba)
9912 {
9913         LPFC_MBOXQ_t *mboxq;
9914         uint32_t rc = 0, if_type;
9915         uint32_t shdr_status, shdr_add_status;
9916         uint32_t rdy_chk;
9917         uint32_t port_reset = 0;
9918         union lpfc_sli4_cfg_shdr *shdr;
9919         struct lpfc_register reg_data;
9920         uint16_t devid;
9921
9922         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9923         switch (if_type) {
9924         case LPFC_SLI_INTF_IF_TYPE_0:
9925                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9926                                                        GFP_KERNEL);
9927                 if (!mboxq) {
9928                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9929                                         "0494 Unable to allocate memory for "
9930                                         "issuing SLI_FUNCTION_RESET mailbox "
9931                                         "command\n");
9932                         return -ENOMEM;
9933                 }
9934
9935                 /* Setup PCI function reset mailbox-ioctl command */
9936                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9937                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9938                                  LPFC_SLI4_MBX_EMBED);
9939                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9940                 shdr = (union lpfc_sli4_cfg_shdr *)
9941                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9942                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9943                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9944                                          &shdr->response);
9945                 if (rc != MBX_TIMEOUT)
9946                         mempool_free(mboxq, phba->mbox_mem_pool);
9947                 if (shdr_status || shdr_add_status || rc) {
9948                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9949                                         "0495 SLI_FUNCTION_RESET mailbox "
9950                                         "failed with status x%x add_status x%x,"
9951                                         " mbx status x%x\n",
9952                                         shdr_status, shdr_add_status, rc);
9953                         rc = -ENXIO;
9954                 }
9955                 break;
9956         case LPFC_SLI_INTF_IF_TYPE_2:
9957         case LPFC_SLI_INTF_IF_TYPE_6:
9958 wait:
9959                 /*
9960                  * Poll the Port Status Register and wait for RDY for
9961                  * up to 30 seconds. If the port doesn't respond, treat
9962                  * it as an error.
9963                  */
9964                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9965                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9966                                 STATUSregaddr, &reg_data.word0)) {
9967                                 rc = -ENODEV;
9968                                 goto out;
9969                         }
9970                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9971                                 break;
9972                         msleep(20);
9973                 }
9974
9975                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9976                         phba->work_status[0] = readl(
9977                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9978                         phba->work_status[1] = readl(
9979                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9980                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9981                                         "2890 Port not ready, port status reg "
9982                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9983                                         reg_data.word0,
9984                                         phba->work_status[0],
9985                                         phba->work_status[1]);
9986                         rc = -ENODEV;
9987                         goto out;
9988                 }
9989
9990                 if (!port_reset) {
9991                         /*
9992                          * Reset the port now
9993                          */
9994                         reg_data.word0 = 0;
9995                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
9996                                LPFC_SLIPORT_LITTLE_ENDIAN);
9997                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
9998                                LPFC_SLIPORT_INIT_PORT);
9999                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10000                                CTRLregaddr);
10001                         /* flush */
10002                         pci_read_config_word(phba->pcidev,
10003                                              PCI_DEVICE_ID, &devid);
10004
10005                         port_reset = 1;
10006                         msleep(20);
10007                         goto wait;
10008                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10009                         rc = -ENODEV;
10010                         goto out;
10011                 }
10012                 break;
10013
10014         case LPFC_SLI_INTF_IF_TYPE_1:
10015         default:
10016                 break;
10017         }
10018
10019 out:
10020         /* Catch the not-ready port failure after a port reset. */
10021         if (rc) {
10022                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10023                                 "3317 HBA not functional: IP Reset Failed "
10024                                 "try: echo fw_reset > board_mode\n");
10025                 rc = -ENODEV;
10026         }
10027
10028         return rc;
10029 }
10030
10031 /**
10032  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10033  * @phba: pointer to lpfc hba data structure.
10034  *
10035  * This routine is invoked to set up the PCI device memory space for device
10036  * with SLI-4 interface spec.
10037  *
10038  * Return codes
10039  *      0 - successful
10040  *      other values - error
10041  **/
10042 static int
10043 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10044 {
10045         struct pci_dev *pdev = phba->pcidev;
10046         unsigned long bar0map_len, bar1map_len, bar2map_len;
10047         int error = -ENODEV;
10048         uint32_t if_type;
10049
10050         if (!pdev)
10051                 return error;
10052
10053         /* Set the device DMA mask size */
10054         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
10055             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
10056                 return error;
10057
10058         /*
10059          * The BARs and register set definitions and offset locations are
10060          * dependent on the if_type.
10061          */
10062         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10063                                   &phba->sli4_hba.sli_intf.word0)) {
10064                 return error;
10065         }
10066
10067         /* There is no SLI3 failback for SLI4 devices. */
10068         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10069             LPFC_SLI_INTF_VALID) {
10070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10071                                 "2894 SLI_INTF reg contents invalid "
10072                                 "sli_intf reg 0x%x\n",
10073                                 phba->sli4_hba.sli_intf.word0);
10074                 return error;
10075         }
10076
10077         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10078         /*
10079          * Get the bus address of SLI4 device Bar regions and the
10080          * number of bytes required by each mapping. The mapping of the
10081          * particular PCI BARs regions is dependent on the type of
10082          * SLI4 device.
10083          */
10084         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10085                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10086                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10087
10088                 /*
10089                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10090                  * addr
10091                  */
10092                 phba->sli4_hba.conf_regs_memmap_p =
10093                         ioremap(phba->pci_bar0_map, bar0map_len);
10094                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10095                         dev_printk(KERN_ERR, &pdev->dev,
10096                                    "ioremap failed for SLI4 PCI config "
10097                                    "registers.\n");
10098                         goto out;
10099                 }
10100                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10101                 /* Set up BAR0 PCI config space register memory map */
10102                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10103         } else {
10104                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10105                 bar0map_len = pci_resource_len(pdev, 1);
10106                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10107                         dev_printk(KERN_ERR, &pdev->dev,
10108                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10109                         goto out;
10110                 }
10111                 phba->sli4_hba.conf_regs_memmap_p =
10112                                 ioremap(phba->pci_bar0_map, bar0map_len);
10113                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10114                         dev_printk(KERN_ERR, &pdev->dev,
10115                                 "ioremap failed for SLI4 PCI config "
10116                                 "registers.\n");
10117                                 goto out;
10118                 }
10119                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10120         }
10121
10122         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10123                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10124                         /*
10125                          * Map SLI4 if type 0 HBA Control Register base to a
10126                          * kernel virtual address and setup the registers.
10127                          */
10128                         phba->pci_bar1_map = pci_resource_start(pdev,
10129                                                                 PCI_64BIT_BAR2);
10130                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10131                         phba->sli4_hba.ctrl_regs_memmap_p =
10132                                         ioremap(phba->pci_bar1_map,
10133                                                 bar1map_len);
10134                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10135                                 dev_err(&pdev->dev,
10136                                            "ioremap failed for SLI4 HBA "
10137                                             "control registers.\n");
10138                                 error = -ENOMEM;
10139                                 goto out_iounmap_conf;
10140                         }
10141                         phba->pci_bar2_memmap_p =
10142                                          phba->sli4_hba.ctrl_regs_memmap_p;
10143                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10144                 } else {
10145                         error = -ENOMEM;
10146                         goto out_iounmap_conf;
10147                 }
10148         }
10149
10150         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10151             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10152                 /*
10153                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10154                  * virtual address and setup the registers.
10155                  */
10156                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10157                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10158                 phba->sli4_hba.drbl_regs_memmap_p =
10159                                 ioremap(phba->pci_bar1_map, bar1map_len);
10160                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10161                         dev_err(&pdev->dev,
10162                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10163                         goto out_iounmap_conf;
10164                 }
10165                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10166                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10167         }
10168
10169         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10170                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10171                         /*
10172                          * Map SLI4 if type 0 HBA Doorbell Register base to
10173                          * a kernel virtual address and setup the registers.
10174                          */
10175                         phba->pci_bar2_map = pci_resource_start(pdev,
10176                                                                 PCI_64BIT_BAR4);
10177                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10178                         phba->sli4_hba.drbl_regs_memmap_p =
10179                                         ioremap(phba->pci_bar2_map,
10180                                                 bar2map_len);
10181                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10182                                 dev_err(&pdev->dev,
10183                                            "ioremap failed for SLI4 HBA"
10184                                            " doorbell registers.\n");
10185                                 error = -ENOMEM;
10186                                 goto out_iounmap_ctrl;
10187                         }
10188                         phba->pci_bar4_memmap_p =
10189                                         phba->sli4_hba.drbl_regs_memmap_p;
10190                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10191                         if (error)
10192                                 goto out_iounmap_all;
10193                 } else {
10194                         error = -ENOMEM;
10195                         goto out_iounmap_all;
10196                 }
10197         }
10198
10199         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10200             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10201                 /*
10202                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10203                  * virtual address and setup the registers.
10204                  */
10205                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10206                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10207                 phba->sli4_hba.dpp_regs_memmap_p =
10208                                 ioremap(phba->pci_bar2_map, bar2map_len);
10209                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10210                         dev_err(&pdev->dev,
10211                            "ioremap failed for SLI4 HBA dpp registers.\n");
10212                         goto out_iounmap_ctrl;
10213                 }
10214                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10215         }
10216
10217         /* Set up the EQ/CQ register handeling functions now */
10218         switch (if_type) {
10219         case LPFC_SLI_INTF_IF_TYPE_0:
10220         case LPFC_SLI_INTF_IF_TYPE_2:
10221                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10222                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10223                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10224                 break;
10225         case LPFC_SLI_INTF_IF_TYPE_6:
10226                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10227                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10228                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10229                 break;
10230         default:
10231                 break;
10232         }
10233
10234         return 0;
10235
10236 out_iounmap_all:
10237         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10238 out_iounmap_ctrl:
10239         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10240 out_iounmap_conf:
10241         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10242 out:
10243         return error;
10244 }
10245
10246 /**
10247  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10248  * @phba: pointer to lpfc hba data structure.
10249  *
10250  * This routine is invoked to unset the PCI device memory space for device
10251  * with SLI-4 interface spec.
10252  **/
10253 static void
10254 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10255 {
10256         uint32_t if_type;
10257         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10258
10259         switch (if_type) {
10260         case LPFC_SLI_INTF_IF_TYPE_0:
10261                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10262                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10263                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10264                 break;
10265         case LPFC_SLI_INTF_IF_TYPE_2:
10266                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10267                 break;
10268         case LPFC_SLI_INTF_IF_TYPE_6:
10269                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10270                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10271                 break;
10272         case LPFC_SLI_INTF_IF_TYPE_1:
10273         default:
10274                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10275                            "FATAL - unsupported SLI4 interface type - %d\n",
10276                            if_type);
10277                 break;
10278         }
10279 }
10280
10281 /**
10282  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10283  * @phba: pointer to lpfc hba data structure.
10284  *
10285  * This routine is invoked to enable the MSI-X interrupt vectors to device
10286  * with SLI-3 interface specs.
10287  *
10288  * Return codes
10289  *   0 - successful
10290  *   other values - error
10291  **/
10292 static int
10293 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10294 {
10295         int rc;
10296         LPFC_MBOXQ_t *pmb;
10297
10298         /* Set up MSI-X multi-message vectors */
10299         rc = pci_alloc_irq_vectors(phba->pcidev,
10300                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10301         if (rc < 0) {
10302                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10303                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10304                 goto vec_fail_out;
10305         }
10306
10307         /*
10308          * Assign MSI-X vectors to interrupt handlers
10309          */
10310
10311         /* vector-0 is associated to slow-path handler */
10312         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10313                          &lpfc_sli_sp_intr_handler, 0,
10314                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10315         if (rc) {
10316                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10317                                 "0421 MSI-X slow-path request_irq failed "
10318                                 "(%d)\n", rc);
10319                 goto msi_fail_out;
10320         }
10321
10322         /* vector-1 is associated to fast-path handler */
10323         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10324                          &lpfc_sli_fp_intr_handler, 0,
10325                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10326
10327         if (rc) {
10328                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10329                                 "0429 MSI-X fast-path request_irq failed "
10330                                 "(%d)\n", rc);
10331                 goto irq_fail_out;
10332         }
10333
10334         /*
10335          * Configure HBA MSI-X attention conditions to messages
10336          */
10337         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10338
10339         if (!pmb) {
10340                 rc = -ENOMEM;
10341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10342                                 "0474 Unable to allocate memory for issuing "
10343                                 "MBOX_CONFIG_MSI command\n");
10344                 goto mem_fail_out;
10345         }
10346         rc = lpfc_config_msi(phba, pmb);
10347         if (rc)
10348                 goto mbx_fail_out;
10349         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10350         if (rc != MBX_SUCCESS) {
10351                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10352                                 "0351 Config MSI mailbox command failed, "
10353                                 "mbxCmd x%x, mbxStatus x%x\n",
10354                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10355                 goto mbx_fail_out;
10356         }
10357
10358         /* Free memory allocated for mailbox command */
10359         mempool_free(pmb, phba->mbox_mem_pool);
10360         return rc;
10361
10362 mbx_fail_out:
10363         /* Free memory allocated for mailbox command */
10364         mempool_free(pmb, phba->mbox_mem_pool);
10365
10366 mem_fail_out:
10367         /* free the irq already requested */
10368         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10369
10370 irq_fail_out:
10371         /* free the irq already requested */
10372         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10373
10374 msi_fail_out:
10375         /* Unconfigure MSI-X capability structure */
10376         pci_free_irq_vectors(phba->pcidev);
10377
10378 vec_fail_out:
10379         return rc;
10380 }
10381
10382 /**
10383  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10384  * @phba: pointer to lpfc hba data structure.
10385  *
10386  * This routine is invoked to enable the MSI interrupt mode to device with
10387  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10388  * enable the MSI vector. The device driver is responsible for calling the
10389  * request_irq() to register MSI vector with a interrupt the handler, which
10390  * is done in this function.
10391  *
10392  * Return codes
10393  *      0 - successful
10394  *      other values - error
10395  */
10396 static int
10397 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10398 {
10399         int rc;
10400
10401         rc = pci_enable_msi(phba->pcidev);
10402         if (!rc)
10403                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10404                                 "0462 PCI enable MSI mode success.\n");
10405         else {
10406                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10407                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10408                 return rc;
10409         }
10410
10411         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10412                          0, LPFC_DRIVER_NAME, phba);
10413         if (rc) {
10414                 pci_disable_msi(phba->pcidev);
10415                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10416                                 "0478 MSI request_irq failed (%d)\n", rc);
10417         }
10418         return rc;
10419 }
10420
10421 /**
10422  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10423  * @phba: pointer to lpfc hba data structure.
10424  *
10425  * This routine is invoked to enable device interrupt and associate driver's
10426  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10427  * spec. Depends on the interrupt mode configured to the driver, the driver
10428  * will try to fallback from the configured interrupt mode to an interrupt
10429  * mode which is supported by the platform, kernel, and device in the order
10430  * of:
10431  * MSI-X -> MSI -> IRQ.
10432  *
10433  * Return codes
10434  *   0 - successful
10435  *   other values - error
10436  **/
10437 static uint32_t
10438 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10439 {
10440         uint32_t intr_mode = LPFC_INTR_ERROR;
10441         int retval;
10442
10443         if (cfg_mode == 2) {
10444                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10445                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10446                 if (!retval) {
10447                         /* Now, try to enable MSI-X interrupt mode */
10448                         retval = lpfc_sli_enable_msix(phba);
10449                         if (!retval) {
10450                                 /* Indicate initialization to MSI-X mode */
10451                                 phba->intr_type = MSIX;
10452                                 intr_mode = 2;
10453                         }
10454                 }
10455         }
10456
10457         /* Fallback to MSI if MSI-X initialization failed */
10458         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10459                 retval = lpfc_sli_enable_msi(phba);
10460                 if (!retval) {
10461                         /* Indicate initialization to MSI mode */
10462                         phba->intr_type = MSI;
10463                         intr_mode = 1;
10464                 }
10465         }
10466
10467         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10468         if (phba->intr_type == NONE) {
10469                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10470                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10471                 if (!retval) {
10472                         /* Indicate initialization to INTx mode */
10473                         phba->intr_type = INTx;
10474                         intr_mode = 0;
10475                 }
10476         }
10477         return intr_mode;
10478 }
10479
10480 /**
10481  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10482  * @phba: pointer to lpfc hba data structure.
10483  *
10484  * This routine is invoked to disable device interrupt and disassociate the
10485  * driver's interrupt handler(s) from interrupt vector(s) to device with
10486  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10487  * release the interrupt vector(s) for the message signaled interrupt.
10488  **/
10489 static void
10490 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10491 {
10492         int nr_irqs, i;
10493
10494         if (phba->intr_type == MSIX)
10495                 nr_irqs = LPFC_MSIX_VECTORS;
10496         else
10497                 nr_irqs = 1;
10498
10499         for (i = 0; i < nr_irqs; i++)
10500                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10501         pci_free_irq_vectors(phba->pcidev);
10502
10503         /* Reset interrupt management states */
10504         phba->intr_type = NONE;
10505         phba->sli.slistat.sli_intr = 0;
10506 }
10507
10508 /**
10509  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified EQ
10510  * @phba: pointer to lpfc hba data structure.
10511  * @id: EQ vector index or Hardware Queue index
10512  * @match: LPFC_FIND_BY_EQ = match by EQ
10513  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10514  */
10515 static uint16_t
10516 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10517 {
10518         struct lpfc_vector_map_info *cpup;
10519         int cpu;
10520
10521         /* Find the desired phys_id for the specified EQ */
10522         for_each_present_cpu(cpu) {
10523                 cpup = &phba->sli4_hba.cpu_map[cpu];
10524                 if ((match == LPFC_FIND_BY_EQ) &&
10525                     (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10526                     (cpup->eq == id))
10527                         return cpu;
10528                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10529                         return cpu;
10530         }
10531         return 0;
10532 }
10533
10534 /**
10535  * lpfc_find_eq_handle - Find the EQ that corresponds to the specified
10536  *                       Hardware Queue
10537  * @phba: pointer to lpfc hba data structure.
10538  * @hdwq: Hardware Queue index
10539  */
10540 static uint16_t
10541 lpfc_find_eq_handle(struct lpfc_hba *phba, uint16_t hdwq)
10542 {
10543         struct lpfc_vector_map_info *cpup;
10544         int cpu;
10545
10546         /* Find the desired phys_id for the specified EQ */
10547         for_each_present_cpu(cpu) {
10548                 cpup = &phba->sli4_hba.cpu_map[cpu];
10549                 if (cpup->hdwq == hdwq)
10550                         return cpup->eq;
10551         }
10552         return 0;
10553 }
10554
10555 #ifdef CONFIG_X86
10556 /**
10557  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10558  * @phba: pointer to lpfc hba data structure.
10559  * @cpu: CPU map index
10560  * @phys_id: CPU package physical id
10561  * @core_id: CPU core id
10562  */
10563 static int
10564 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10565                 uint16_t phys_id, uint16_t core_id)
10566 {
10567         struct lpfc_vector_map_info *cpup;
10568         int idx;
10569
10570         for_each_present_cpu(idx) {
10571                 cpup = &phba->sli4_hba.cpu_map[idx];
10572                 /* Does the cpup match the one we are looking for */
10573                 if ((cpup->phys_id == phys_id) &&
10574                     (cpup->core_id == core_id) &&
10575                     (cpu != idx))
10576                         return 1;
10577         }
10578         return 0;
10579 }
10580 #endif
10581
10582 /**
10583  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10584  * @phba: pointer to lpfc hba data structure.
10585  * @vectors: number of msix vectors allocated.
10586  *
10587  * The routine will figure out the CPU affinity assignment for every
10588  * MSI-X vector allocated for the HBA.
10589  * In addition, the CPU to IO channel mapping will be calculated
10590  * and the phba->sli4_hba.cpu_map array will reflect this.
10591  */
10592 static void
10593 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10594 {
10595         int i, cpu, idx, phys_id;
10596         int max_phys_id, min_phys_id;
10597         int max_core_id, min_core_id;
10598         struct lpfc_vector_map_info *cpup;
10599         const struct cpumask *maskp;
10600 #ifdef CONFIG_X86
10601         struct cpuinfo_x86 *cpuinfo;
10602 #endif
10603
10604         /* Init cpu_map array */
10605         memset(phba->sli4_hba.cpu_map, 0xff,
10606                (sizeof(struct lpfc_vector_map_info) *
10607                phba->sli4_hba.num_possible_cpu));
10608
10609         max_phys_id = 0;
10610         min_phys_id = 0xffff;
10611         max_core_id = 0;
10612         min_core_id = 0xffff;
10613         phys_id = 0;
10614
10615         /* Update CPU map with physical id and core id of each CPU */
10616         for_each_present_cpu(cpu) {
10617                 cpup = &phba->sli4_hba.cpu_map[cpu];
10618 #ifdef CONFIG_X86
10619                 cpuinfo = &cpu_data(cpu);
10620                 cpup->phys_id = cpuinfo->phys_proc_id;
10621                 cpup->core_id = cpuinfo->cpu_core_id;
10622                 cpup->hyper = lpfc_find_hyper(phba, cpu,
10623                                               cpup->phys_id, cpup->core_id);
10624 #else
10625                 /* No distinction between CPUs for other platforms */
10626                 cpup->phys_id = 0;
10627                 cpup->core_id = cpu;
10628                 cpup->hyper = 0;
10629 #endif
10630
10631                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10632                                 "3328 CPU physid %d coreid %d\n",
10633                                 cpup->phys_id, cpup->core_id);
10634
10635                 if (cpup->phys_id > max_phys_id)
10636                         max_phys_id = cpup->phys_id;
10637                 if (cpup->phys_id < min_phys_id)
10638                         min_phys_id = cpup->phys_id;
10639
10640                 if (cpup->core_id > max_core_id)
10641                         max_core_id = cpup->core_id;
10642                 if (cpup->core_id < min_core_id)
10643                         min_core_id = cpup->core_id;
10644         }
10645
10646         for_each_possible_cpu(i) {
10647                 struct lpfc_eq_intr_info *eqi =
10648                         per_cpu_ptr(phba->sli4_hba.eq_info, i);
10649
10650                 INIT_LIST_HEAD(&eqi->list);
10651                 eqi->icnt = 0;
10652         }
10653
10654         for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10655                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
10656                 if (!maskp)
10657                         continue;
10658
10659                 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10660                         cpup = &phba->sli4_hba.cpu_map[cpu];
10661                         cpup->eq = idx;
10662                         cpup->hdwq = idx;
10663                         cpup->irq = pci_irq_vector(phba->pcidev, idx);
10664
10665                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10666                                         "3336 Set Affinity: CPU %d "
10667                                         "hdwq %d irq %d\n",
10668                                         cpu, cpup->hdwq, cpup->irq);
10669                 }
10670         }
10671         return;
10672 }
10673
10674 /**
10675  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10676  * @phba: pointer to lpfc hba data structure.
10677  *
10678  * This routine is invoked to enable the MSI-X interrupt vectors to device
10679  * with SLI-4 interface spec.
10680  *
10681  * Return codes
10682  * 0 - successful
10683  * other values - error
10684  **/
10685 static int
10686 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10687 {
10688         int vectors, rc, index;
10689         char *name;
10690
10691         /* Set up MSI-X multi-message vectors */
10692         vectors = phba->cfg_irq_chann;
10693
10694         rc = pci_alloc_irq_vectors(phba->pcidev,
10695                                 1,
10696                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10697         if (rc < 0) {
10698                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10699                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10700                 goto vec_fail_out;
10701         }
10702         vectors = rc;
10703
10704         /* Assign MSI-X vectors to interrupt handlers */
10705         for (index = 0; index < vectors; index++) {
10706                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10707                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10708                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10709                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10710
10711                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10712                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10713                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
10714                          &lpfc_sli4_hba_intr_handler, 0,
10715                          name,
10716                          &phba->sli4_hba.hba_eq_hdl[index]);
10717                 if (rc) {
10718                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10719                                         "0486 MSI-X fast-path (%d) "
10720                                         "request_irq failed (%d)\n", index, rc);
10721                         goto cfg_fail_out;
10722                 }
10723         }
10724
10725         if (vectors != phba->cfg_irq_chann) {
10726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10727                                 "3238 Reducing IO channels to match number of "
10728                                 "MSI-X vectors, requested %d got %d\n",
10729                                 phba->cfg_irq_chann, vectors);
10730                 if (phba->cfg_irq_chann > vectors)
10731                         phba->cfg_irq_chann = vectors;
10732                 if (phba->cfg_nvmet_mrq > vectors)
10733                         phba->cfg_nvmet_mrq = vectors;
10734         }
10735
10736         return rc;
10737
10738 cfg_fail_out:
10739         /* free the irq already requested */
10740         for (--index; index >= 0; index--)
10741                 free_irq(pci_irq_vector(phba->pcidev, index),
10742                                 &phba->sli4_hba.hba_eq_hdl[index]);
10743
10744         /* Unconfigure MSI-X capability structure */
10745         pci_free_irq_vectors(phba->pcidev);
10746
10747 vec_fail_out:
10748         return rc;
10749 }
10750
10751 /**
10752  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10753  * @phba: pointer to lpfc hba data structure.
10754  *
10755  * This routine is invoked to enable the MSI interrupt mode to device with
10756  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10757  * to enable the MSI vector. The device driver is responsible for calling
10758  * the request_irq() to register MSI vector with a interrupt the handler,
10759  * which is done in this function.
10760  *
10761  * Return codes
10762  *      0 - successful
10763  *      other values - error
10764  **/
10765 static int
10766 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10767 {
10768         int rc, index;
10769
10770         rc = pci_enable_msi(phba->pcidev);
10771         if (!rc)
10772                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10773                                 "0487 PCI enable MSI mode success.\n");
10774         else {
10775                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10776                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10777                 return rc;
10778         }
10779
10780         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10781                          0, LPFC_DRIVER_NAME, phba);
10782         if (rc) {
10783                 pci_disable_msi(phba->pcidev);
10784                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10785                                 "0490 MSI request_irq failed (%d)\n", rc);
10786                 return rc;
10787         }
10788
10789         for (index = 0; index < phba->cfg_irq_chann; index++) {
10790                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10791                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10792         }
10793
10794         return 0;
10795 }
10796
10797 /**
10798  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10799  * @phba: pointer to lpfc hba data structure.
10800  *
10801  * This routine is invoked to enable device interrupt and associate driver's
10802  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10803  * interface spec. Depends on the interrupt mode configured to the driver,
10804  * the driver will try to fallback from the configured interrupt mode to an
10805  * interrupt mode which is supported by the platform, kernel, and device in
10806  * the order of:
10807  * MSI-X -> MSI -> IRQ.
10808  *
10809  * Return codes
10810  *      0 - successful
10811  *      other values - error
10812  **/
10813 static uint32_t
10814 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10815 {
10816         uint32_t intr_mode = LPFC_INTR_ERROR;
10817         int retval, idx;
10818
10819         if (cfg_mode == 2) {
10820                 /* Preparation before conf_msi mbox cmd */
10821                 retval = 0;
10822                 if (!retval) {
10823                         /* Now, try to enable MSI-X interrupt mode */
10824                         retval = lpfc_sli4_enable_msix(phba);
10825                         if (!retval) {
10826                                 /* Indicate initialization to MSI-X mode */
10827                                 phba->intr_type = MSIX;
10828                                 intr_mode = 2;
10829                         }
10830                 }
10831         }
10832
10833         /* Fallback to MSI if MSI-X initialization failed */
10834         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10835                 retval = lpfc_sli4_enable_msi(phba);
10836                 if (!retval) {
10837                         /* Indicate initialization to MSI mode */
10838                         phba->intr_type = MSI;
10839                         intr_mode = 1;
10840                 }
10841         }
10842
10843         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10844         if (phba->intr_type == NONE) {
10845                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10846                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10847                 if (!retval) {
10848                         struct lpfc_hba_eq_hdl *eqhdl;
10849
10850                         /* Indicate initialization to INTx mode */
10851                         phba->intr_type = INTx;
10852                         intr_mode = 0;
10853
10854                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10855                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10856                                 eqhdl->idx = idx;
10857                                 eqhdl->phba = phba;
10858                         }
10859                 }
10860         }
10861         return intr_mode;
10862 }
10863
10864 /**
10865  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10866  * @phba: pointer to lpfc hba data structure.
10867  *
10868  * This routine is invoked to disable device interrupt and disassociate
10869  * the driver's interrupt handler(s) from interrupt vector(s) to device
10870  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10871  * will release the interrupt vector(s) for the message signaled interrupt.
10872  **/
10873 static void
10874 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10875 {
10876         /* Disable the currently initialized interrupt mode */
10877         if (phba->intr_type == MSIX) {
10878                 int index;
10879
10880                 /* Free up MSI-X multi-message vectors */
10881                 for (index = 0; index < phba->cfg_irq_chann; index++) {
10882                         irq_set_affinity_hint(
10883                                 pci_irq_vector(phba->pcidev, index),
10884                                 NULL);
10885                         free_irq(pci_irq_vector(phba->pcidev, index),
10886                                         &phba->sli4_hba.hba_eq_hdl[index]);
10887                 }
10888         } else {
10889                 free_irq(phba->pcidev->irq, phba);
10890         }
10891
10892         pci_free_irq_vectors(phba->pcidev);
10893
10894         /* Reset interrupt management states */
10895         phba->intr_type = NONE;
10896         phba->sli.slistat.sli_intr = 0;
10897 }
10898
10899 /**
10900  * lpfc_unset_hba - Unset SLI3 hba device initialization
10901  * @phba: pointer to lpfc hba data structure.
10902  *
10903  * This routine is invoked to unset the HBA device initialization steps to
10904  * a device with SLI-3 interface spec.
10905  **/
10906 static void
10907 lpfc_unset_hba(struct lpfc_hba *phba)
10908 {
10909         struct lpfc_vport *vport = phba->pport;
10910         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10911
10912         spin_lock_irq(shost->host_lock);
10913         vport->load_flag |= FC_UNLOADING;
10914         spin_unlock_irq(shost->host_lock);
10915
10916         kfree(phba->vpi_bmask);
10917         kfree(phba->vpi_ids);
10918
10919         lpfc_stop_hba_timers(phba);
10920
10921         phba->pport->work_port_events = 0;
10922
10923         lpfc_sli_hba_down(phba);
10924
10925         lpfc_sli_brdrestart(phba);
10926
10927         lpfc_sli_disable_intr(phba);
10928
10929         return;
10930 }
10931
10932 /**
10933  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10934  * @phba: Pointer to HBA context object.
10935  *
10936  * This function is called in the SLI4 code path to wait for completion
10937  * of device's XRIs exchange busy. It will check the XRI exchange busy
10938  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10939  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10940  * I/Os every 30 seconds, log error message, and wait forever. Only when
10941  * all XRI exchange busy complete, the driver unload shall proceed with
10942  * invoking the function reset ioctl mailbox command to the CNA and the
10943  * the rest of the driver unload resource release.
10944  **/
10945 static void
10946 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10947 {
10948         struct lpfc_sli4_hdw_queue *qp;
10949         int idx, ccnt, fcnt;
10950         int wait_time = 0;
10951         int io_xri_cmpl = 1;
10952         int nvmet_xri_cmpl = 1;
10953         int fcp_xri_cmpl = 1;
10954         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10955
10956         /* Driver just aborted IOs during the hba_unset process.  Pause
10957          * here to give the HBA time to complete the IO and get entries
10958          * into the abts lists.
10959          */
10960         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10961
10962         /* Wait for NVME pending IO to flush back to transport. */
10963         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10964                 lpfc_nvme_wait_for_io_drain(phba);
10965
10966         ccnt = 0;
10967         fcnt = 0;
10968         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10969                 qp = &phba->sli4_hba.hdwq[idx];
10970                 fcp_xri_cmpl = list_empty(
10971                         &qp->lpfc_abts_scsi_buf_list);
10972                 if (!fcp_xri_cmpl) /* if list is NOT empty */
10973                         fcnt++;
10974                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10975                         io_xri_cmpl = list_empty(
10976                                 &qp->lpfc_abts_nvme_buf_list);
10977                         if (!io_xri_cmpl) /* if list is NOT empty */
10978                                 ccnt++;
10979                 }
10980         }
10981         if (ccnt)
10982                 io_xri_cmpl = 0;
10983         if (fcnt)
10984                 fcp_xri_cmpl = 0;
10985
10986         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10987                 nvmet_xri_cmpl =
10988                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10989         }
10990
10991         while (!fcp_xri_cmpl || !els_xri_cmpl || !io_xri_cmpl ||
10992                !nvmet_xri_cmpl) {
10993                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10994                         if (!nvmet_xri_cmpl)
10995                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10996                                                 "6424 NVMET XRI exchange busy "
10997                                                 "wait time: %d seconds.\n",
10998                                                 wait_time/1000);
10999                         if (!io_xri_cmpl)
11000                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11001                                                 "6100 NVME XRI exchange busy "
11002                                                 "wait time: %d seconds.\n",
11003                                                 wait_time/1000);
11004                         if (!fcp_xri_cmpl)
11005                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11006                                                 "2877 FCP XRI exchange busy "
11007                                                 "wait time: %d seconds.\n",
11008                                                 wait_time/1000);
11009                         if (!els_xri_cmpl)
11010                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11011                                                 "2878 ELS XRI exchange busy "
11012                                                 "wait time: %d seconds.\n",
11013                                                 wait_time/1000);
11014                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11015                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11016                 } else {
11017                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11018                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11019                 }
11020
11021                 ccnt = 0;
11022                 fcnt = 0;
11023                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11024                         qp = &phba->sli4_hba.hdwq[idx];
11025                         fcp_xri_cmpl = list_empty(
11026                                 &qp->lpfc_abts_scsi_buf_list);
11027                         if (!fcp_xri_cmpl) /* if list is NOT empty */
11028                                 fcnt++;
11029                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11030                                 io_xri_cmpl = list_empty(
11031                                     &qp->lpfc_abts_nvme_buf_list);
11032                                 if (!io_xri_cmpl) /* if list is NOT empty */
11033                                         ccnt++;
11034                         }
11035                 }
11036                 if (ccnt)
11037                         io_xri_cmpl = 0;
11038                 if (fcnt)
11039                         fcp_xri_cmpl = 0;
11040
11041                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11042                         nvmet_xri_cmpl = list_empty(
11043                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11044                 }
11045                 els_xri_cmpl =
11046                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11047
11048         }
11049 }
11050
11051 /**
11052  * lpfc_sli4_hba_unset - Unset the fcoe hba
11053  * @phba: Pointer to HBA context object.
11054  *
11055  * This function is called in the SLI4 code path to reset the HBA's FCoE
11056  * function. The caller is not required to hold any lock. This routine
11057  * issues PCI function reset mailbox command to reset the FCoE function.
11058  * At the end of the function, it calls lpfc_hba_down_post function to
11059  * free any pending commands.
11060  **/
11061 static void
11062 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11063 {
11064         int wait_cnt = 0;
11065         LPFC_MBOXQ_t *mboxq;
11066         struct pci_dev *pdev = phba->pcidev;
11067
11068         lpfc_stop_hba_timers(phba);
11069         if (phba->pport)
11070                 phba->sli4_hba.intr_enable = 0;
11071
11072         /*
11073          * Gracefully wait out the potential current outstanding asynchronous
11074          * mailbox command.
11075          */
11076
11077         /* First, block any pending async mailbox command from posted */
11078         spin_lock_irq(&phba->hbalock);
11079         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11080         spin_unlock_irq(&phba->hbalock);
11081         /* Now, trying to wait it out if we can */
11082         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11083                 msleep(10);
11084                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11085                         break;
11086         }
11087         /* Forcefully release the outstanding mailbox command if timed out */
11088         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11089                 spin_lock_irq(&phba->hbalock);
11090                 mboxq = phba->sli.mbox_active;
11091                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11092                 __lpfc_mbox_cmpl_put(phba, mboxq);
11093                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11094                 phba->sli.mbox_active = NULL;
11095                 spin_unlock_irq(&phba->hbalock);
11096         }
11097
11098         /* Abort all iocbs associated with the hba */
11099         lpfc_sli_hba_iocb_abort(phba);
11100
11101         /* Wait for completion of device XRI exchange busy */
11102         lpfc_sli4_xri_exchange_busy_wait(phba);
11103
11104         /* Disable PCI subsystem interrupt */
11105         lpfc_sli4_disable_intr(phba);
11106
11107         /* Disable SR-IOV if enabled */
11108         if (phba->cfg_sriov_nr_virtfn)
11109                 pci_disable_sriov(pdev);
11110
11111         /* Stop kthread signal shall trigger work_done one more time */
11112         kthread_stop(phba->worker_thread);
11113
11114         /* Disable FW logging to host memory */
11115         lpfc_ras_stop_fwlog(phba);
11116
11117         /* Unset the queues shared with the hardware then release all
11118          * allocated resources.
11119          */
11120         lpfc_sli4_queue_unset(phba);
11121         lpfc_sli4_queue_destroy(phba);
11122
11123         /* Reset SLI4 HBA FCoE function */
11124         lpfc_pci_function_reset(phba);
11125
11126         /* Free RAS DMA memory */
11127         if (phba->ras_fwlog.ras_enabled)
11128                 lpfc_sli4_ras_dma_free(phba);
11129
11130         /* Stop the SLI4 device port */
11131         phba->pport->work_port_events = 0;
11132 }
11133
11134  /**
11135  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11136  * @phba: Pointer to HBA context object.
11137  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11138  *
11139  * This function is called in the SLI4 code path to read the port's
11140  * sli4 capabilities.
11141  *
11142  * This function may be be called from any context that can block-wait
11143  * for the completion.  The expectation is that this routine is called
11144  * typically from probe_one or from the online routine.
11145  **/
11146 int
11147 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11148 {
11149         int rc;
11150         struct lpfc_mqe *mqe;
11151         struct lpfc_pc_sli4_params *sli4_params;
11152         uint32_t mbox_tmo;
11153
11154         rc = 0;
11155         mqe = &mboxq->u.mqe;
11156
11157         /* Read the port's SLI4 Parameters port capabilities */
11158         lpfc_pc_sli4_params(mboxq);
11159         if (!phba->sli4_hba.intr_enable)
11160                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11161         else {
11162                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11163                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11164         }
11165
11166         if (unlikely(rc))
11167                 return 1;
11168
11169         sli4_params = &phba->sli4_hba.pc_sli4_params;
11170         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11171         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11172         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11173         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11174                                              &mqe->un.sli4_params);
11175         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11176                                              &mqe->un.sli4_params);
11177         sli4_params->proto_types = mqe->un.sli4_params.word3;
11178         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11179         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11180         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11181         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11182         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11183         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11184         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11185         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11186         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11187         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11188         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11189         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11190         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11191         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11192         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11193         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11194         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11195         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11196         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11197         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11198
11199         /* Make sure that sge_supp_len can be handled by the driver */
11200         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11201                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11202
11203         return rc;
11204 }
11205
11206 /**
11207  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11208  * @phba: Pointer to HBA context object.
11209  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11210  *
11211  * This function is called in the SLI4 code path to read the port's
11212  * sli4 capabilities.
11213  *
11214  * This function may be be called from any context that can block-wait
11215  * for the completion.  The expectation is that this routine is called
11216  * typically from probe_one or from the online routine.
11217  **/
11218 int
11219 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11220 {
11221         int rc;
11222         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11223         struct lpfc_pc_sli4_params *sli4_params;
11224         uint32_t mbox_tmo;
11225         int length;
11226         bool exp_wqcq_pages = true;
11227         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11228
11229         /*
11230          * By default, the driver assumes the SLI4 port requires RPI
11231          * header postings.  The SLI4_PARAM response will correct this
11232          * assumption.
11233          */
11234         phba->sli4_hba.rpi_hdrs_in_use = 1;
11235
11236         /* Read the port's SLI4 Config Parameters */
11237         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11238                   sizeof(struct lpfc_sli4_cfg_mhdr));
11239         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11240                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11241                          length, LPFC_SLI4_MBX_EMBED);
11242         if (!phba->sli4_hba.intr_enable)
11243                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11244         else {
11245                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11246                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11247         }
11248         if (unlikely(rc))
11249                 return rc;
11250         sli4_params = &phba->sli4_hba.pc_sli4_params;
11251         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11252         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11253         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11254         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11255         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11256                                              mbx_sli4_parameters);
11257         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11258                                              mbx_sli4_parameters);
11259         if (bf_get(cfg_phwq, mbx_sli4_parameters))
11260                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11261         else
11262                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11263         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11264         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11265         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11266         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11267         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11268         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11269         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11270         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11271         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11272         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11273         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11274         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11275                                             mbx_sli4_parameters);
11276         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11277         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11278                                            mbx_sli4_parameters);
11279         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11280         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11281         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11282                               bf_get(cfg_xib, mbx_sli4_parameters));
11283
11284         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
11285             !phba->nvme_support) {
11286                 phba->nvme_support = 0;
11287                 phba->nvmet_support = 0;
11288                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
11289                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11290                                 "6101 Disabling NVME support: "
11291                                 "Not supported by firmware: %d %d\n",
11292                                 bf_get(cfg_nvme, mbx_sli4_parameters),
11293                                 bf_get(cfg_xib, mbx_sli4_parameters));
11294
11295                 /* If firmware doesn't support NVME, just use SCSI support */
11296                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11297                         return -ENODEV;
11298                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11299         }
11300
11301         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11302         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11303             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11304                 phba->cfg_enable_pbde = 0;
11305
11306         /*
11307          * To support Suppress Response feature we must satisfy 3 conditions.
11308          * lpfc_suppress_rsp module parameter must be set (default).
11309          * In SLI4-Parameters Descriptor:
11310          * Extended Inline Buffers (XIB) must be supported.
11311          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11312          * (double negative).
11313          */
11314         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11315             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11316                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11317         else
11318                 phba->cfg_suppress_rsp = 0;
11319
11320         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11321                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11322
11323         /* Make sure that sge_supp_len can be handled by the driver */
11324         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11325                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11326
11327         /*
11328          * Check whether the adapter supports an embedded copy of the
11329          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11330          * to use this option, 128-byte WQEs must be used.
11331          */
11332         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11333                 phba->fcp_embed_io = 1;
11334         else
11335                 phba->fcp_embed_io = 0;
11336
11337         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11338                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11339                         bf_get(cfg_xib, mbx_sli4_parameters),
11340                         phba->cfg_enable_pbde,
11341                         phba->fcp_embed_io, phba->nvme_support,
11342                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11343
11344         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11345             LPFC_SLI_INTF_IF_TYPE_2) &&
11346             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11347                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
11348                 exp_wqcq_pages = false;
11349
11350         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11351             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11352             exp_wqcq_pages &&
11353             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11354                 phba->enab_exp_wqcq_pages = 1;
11355         else
11356                 phba->enab_exp_wqcq_pages = 0;
11357         /*
11358          * Check if the SLI port supports MDS Diagnostics
11359          */
11360         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11361                 phba->mds_diags_support = 1;
11362         else
11363                 phba->mds_diags_support = 0;
11364
11365         return 0;
11366 }
11367
11368 /**
11369  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11370  * @pdev: pointer to PCI device
11371  * @pid: pointer to PCI device identifier
11372  *
11373  * This routine is to be called to attach a device with SLI-3 interface spec
11374  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11375  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11376  * information of the device and driver to see if the driver state that it can
11377  * support this kind of device. If the match is successful, the driver core
11378  * invokes this routine. If this routine determines it can claim the HBA, it
11379  * does all the initialization that it needs to do to handle the HBA properly.
11380  *
11381  * Return code
11382  *      0 - driver can claim the device
11383  *      negative value - driver can not claim the device
11384  **/
11385 static int
11386 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11387 {
11388         struct lpfc_hba   *phba;
11389         struct lpfc_vport *vport = NULL;
11390         struct Scsi_Host  *shost = NULL;
11391         int error;
11392         uint32_t cfg_mode, intr_mode;
11393
11394         /* Allocate memory for HBA structure */
11395         phba = lpfc_hba_alloc(pdev);
11396         if (!phba)
11397                 return -ENOMEM;
11398
11399         /* Perform generic PCI device enabling operation */
11400         error = lpfc_enable_pci_dev(phba);
11401         if (error)
11402                 goto out_free_phba;
11403
11404         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11405         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11406         if (error)
11407                 goto out_disable_pci_dev;
11408
11409         /* Set up SLI-3 specific device PCI memory space */
11410         error = lpfc_sli_pci_mem_setup(phba);
11411         if (error) {
11412                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11413                                 "1402 Failed to set up pci memory space.\n");
11414                 goto out_disable_pci_dev;
11415         }
11416
11417         /* Set up SLI-3 specific device driver resources */
11418         error = lpfc_sli_driver_resource_setup(phba);
11419         if (error) {
11420                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11421                                 "1404 Failed to set up driver resource.\n");
11422                 goto out_unset_pci_mem_s3;
11423         }
11424
11425         /* Initialize and populate the iocb list per host */
11426
11427         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11428         if (error) {
11429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11430                                 "1405 Failed to initialize iocb list.\n");
11431                 goto out_unset_driver_resource_s3;
11432         }
11433
11434         /* Set up common device driver resources */
11435         error = lpfc_setup_driver_resource_phase2(phba);
11436         if (error) {
11437                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11438                                 "1406 Failed to set up driver resource.\n");
11439                 goto out_free_iocb_list;
11440         }
11441
11442         /* Get the default values for Model Name and Description */
11443         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11444
11445         /* Create SCSI host to the physical port */
11446         error = lpfc_create_shost(phba);
11447         if (error) {
11448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11449                                 "1407 Failed to create scsi host.\n");
11450                 goto out_unset_driver_resource;
11451         }
11452
11453         /* Configure sysfs attributes */
11454         vport = phba->pport;
11455         error = lpfc_alloc_sysfs_attr(vport);
11456         if (error) {
11457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11458                                 "1476 Failed to allocate sysfs attr\n");
11459                 goto out_destroy_shost;
11460         }
11461
11462         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11463         /* Now, trying to enable interrupt and bring up the device */
11464         cfg_mode = phba->cfg_use_msi;
11465         while (true) {
11466                 /* Put device to a known state before enabling interrupt */
11467                 lpfc_stop_port(phba);
11468                 /* Configure and enable interrupt */
11469                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11470                 if (intr_mode == LPFC_INTR_ERROR) {
11471                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11472                                         "0431 Failed to enable interrupt.\n");
11473                         error = -ENODEV;
11474                         goto out_free_sysfs_attr;
11475                 }
11476                 /* SLI-3 HBA setup */
11477                 if (lpfc_sli_hba_setup(phba)) {
11478                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11479                                         "1477 Failed to set up hba\n");
11480                         error = -ENODEV;
11481                         goto out_remove_device;
11482                 }
11483
11484                 /* Wait 50ms for the interrupts of previous mailbox commands */
11485                 msleep(50);
11486                 /* Check active interrupts on message signaled interrupts */
11487                 if (intr_mode == 0 ||
11488                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11489                         /* Log the current active interrupt mode */
11490                         phba->intr_mode = intr_mode;
11491                         lpfc_log_intr_mode(phba, intr_mode);
11492                         break;
11493                 } else {
11494                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11495                                         "0447 Configure interrupt mode (%d) "
11496                                         "failed active interrupt test.\n",
11497                                         intr_mode);
11498                         /* Disable the current interrupt mode */
11499                         lpfc_sli_disable_intr(phba);
11500                         /* Try next level of interrupt mode */
11501                         cfg_mode = --intr_mode;
11502                 }
11503         }
11504
11505         /* Perform post initialization setup */
11506         lpfc_post_init_setup(phba);
11507
11508         /* Check if there are static vports to be created. */
11509         lpfc_create_static_vport(phba);
11510
11511         return 0;
11512
11513 out_remove_device:
11514         lpfc_unset_hba(phba);
11515 out_free_sysfs_attr:
11516         lpfc_free_sysfs_attr(vport);
11517 out_destroy_shost:
11518         lpfc_destroy_shost(phba);
11519 out_unset_driver_resource:
11520         lpfc_unset_driver_resource_phase2(phba);
11521 out_free_iocb_list:
11522         lpfc_free_iocb_list(phba);
11523 out_unset_driver_resource_s3:
11524         lpfc_sli_driver_resource_unset(phba);
11525 out_unset_pci_mem_s3:
11526         lpfc_sli_pci_mem_unset(phba);
11527 out_disable_pci_dev:
11528         lpfc_disable_pci_dev(phba);
11529         if (shost)
11530                 scsi_host_put(shost);
11531 out_free_phba:
11532         lpfc_hba_free(phba);
11533         return error;
11534 }
11535
11536 /**
11537  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11538  * @pdev: pointer to PCI device
11539  *
11540  * This routine is to be called to disattach a device with SLI-3 interface
11541  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11542  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11543  * device to be removed from the PCI subsystem properly.
11544  **/
11545 static void
11546 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11547 {
11548         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11549         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11550         struct lpfc_vport **vports;
11551         struct lpfc_hba   *phba = vport->phba;
11552         int i;
11553
11554         spin_lock_irq(&phba->hbalock);
11555         vport->load_flag |= FC_UNLOADING;
11556         spin_unlock_irq(&phba->hbalock);
11557
11558         lpfc_free_sysfs_attr(vport);
11559
11560         /* Release all the vports against this physical port */
11561         vports = lpfc_create_vport_work_array(phba);
11562         if (vports != NULL)
11563                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11564                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11565                                 continue;
11566                         fc_vport_terminate(vports[i]->fc_vport);
11567                 }
11568         lpfc_destroy_vport_work_array(phba, vports);
11569
11570         /* Remove FC host and then SCSI host with the physical port */
11571         fc_remove_host(shost);
11572         scsi_remove_host(shost);
11573
11574         lpfc_cleanup(vport);
11575
11576         /*
11577          * Bring down the SLI Layer. This step disable all interrupts,
11578          * clears the rings, discards all mailbox commands, and resets
11579          * the HBA.
11580          */
11581
11582         /* HBA interrupt will be disabled after this call */
11583         lpfc_sli_hba_down(phba);
11584         /* Stop kthread signal shall trigger work_done one more time */
11585         kthread_stop(phba->worker_thread);
11586         /* Final cleanup of txcmplq and reset the HBA */
11587         lpfc_sli_brdrestart(phba);
11588
11589         kfree(phba->vpi_bmask);
11590         kfree(phba->vpi_ids);
11591
11592         lpfc_stop_hba_timers(phba);
11593         spin_lock_irq(&phba->port_list_lock);
11594         list_del_init(&vport->listentry);
11595         spin_unlock_irq(&phba->port_list_lock);
11596
11597         lpfc_debugfs_terminate(vport);
11598
11599         /* Disable SR-IOV if enabled */
11600         if (phba->cfg_sriov_nr_virtfn)
11601                 pci_disable_sriov(pdev);
11602
11603         /* Disable interrupt */
11604         lpfc_sli_disable_intr(phba);
11605
11606         scsi_host_put(shost);
11607
11608         /*
11609          * Call scsi_free before mem_free since scsi bufs are released to their
11610          * corresponding pools here.
11611          */
11612         lpfc_scsi_free(phba);
11613         lpfc_free_iocb_list(phba);
11614
11615         lpfc_mem_free_all(phba);
11616
11617         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11618                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11619
11620         /* Free resources associated with SLI2 interface */
11621         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11622                           phba->slim2p.virt, phba->slim2p.phys);
11623
11624         /* unmap adapter SLIM and Control Registers */
11625         iounmap(phba->ctrl_regs_memmap_p);
11626         iounmap(phba->slim_memmap_p);
11627
11628         lpfc_hba_free(phba);
11629
11630         pci_release_mem_regions(pdev);
11631         pci_disable_device(pdev);
11632 }
11633
11634 /**
11635  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11636  * @pdev: pointer to PCI device
11637  * @msg: power management message
11638  *
11639  * This routine is to be called from the kernel's PCI subsystem to support
11640  * system Power Management (PM) to device with SLI-3 interface spec. When
11641  * PM invokes this method, it quiesces the device by stopping the driver's
11642  * worker thread for the device, turning off device's interrupt and DMA,
11643  * and bring the device offline. Note that as the driver implements the
11644  * minimum PM requirements to a power-aware driver's PM support for the
11645  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11646  * to the suspend() method call will be treated as SUSPEND and the driver will
11647  * fully reinitialize its device during resume() method call, the driver will
11648  * set device to PCI_D3hot state in PCI config space instead of setting it
11649  * according to the @msg provided by the PM.
11650  *
11651  * Return code
11652  *      0 - driver suspended the device
11653  *      Error otherwise
11654  **/
11655 static int
11656 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11657 {
11658         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11659         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11660
11661         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11662                         "0473 PCI device Power Management suspend.\n");
11663
11664         /* Bring down the device */
11665         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11666         lpfc_offline(phba);
11667         kthread_stop(phba->worker_thread);
11668
11669         /* Disable interrupt from device */
11670         lpfc_sli_disable_intr(phba);
11671
11672         /* Save device state to PCI config space */
11673         pci_save_state(pdev);
11674         pci_set_power_state(pdev, PCI_D3hot);
11675
11676         return 0;
11677 }
11678
11679 /**
11680  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11681  * @pdev: pointer to PCI device
11682  *
11683  * This routine is to be called from the kernel's PCI subsystem to support
11684  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11685  * invokes this method, it restores the device's PCI config space state and
11686  * fully reinitializes the device and brings it online. Note that as the
11687  * driver implements the minimum PM requirements to a power-aware driver's
11688  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11689  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11690  * driver will fully reinitialize its device during resume() method call,
11691  * the device will be set to PCI_D0 directly in PCI config space before
11692  * restoring the state.
11693  *
11694  * Return code
11695  *      0 - driver suspended the device
11696  *      Error otherwise
11697  **/
11698 static int
11699 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11700 {
11701         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11702         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11703         uint32_t intr_mode;
11704         int error;
11705
11706         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11707                         "0452 PCI device Power Management resume.\n");
11708
11709         /* Restore device state from PCI config space */
11710         pci_set_power_state(pdev, PCI_D0);
11711         pci_restore_state(pdev);
11712
11713         /*
11714          * As the new kernel behavior of pci_restore_state() API call clears
11715          * device saved_state flag, need to save the restored state again.
11716          */
11717         pci_save_state(pdev);
11718
11719         if (pdev->is_busmaster)
11720                 pci_set_master(pdev);
11721
11722         /* Startup the kernel thread for this host adapter. */
11723         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11724                                         "lpfc_worker_%d", phba->brd_no);
11725         if (IS_ERR(phba->worker_thread)) {
11726                 error = PTR_ERR(phba->worker_thread);
11727                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11728                                 "0434 PM resume failed to start worker "
11729                                 "thread: error=x%x.\n", error);
11730                 return error;
11731         }
11732
11733         /* Configure and enable interrupt */
11734         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11735         if (intr_mode == LPFC_INTR_ERROR) {
11736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11737                                 "0430 PM resume Failed to enable interrupt\n");
11738                 return -EIO;
11739         } else
11740                 phba->intr_mode = intr_mode;
11741
11742         /* Restart HBA and bring it online */
11743         lpfc_sli_brdrestart(phba);
11744         lpfc_online(phba);
11745
11746         /* Log the current active interrupt mode */
11747         lpfc_log_intr_mode(phba, phba->intr_mode);
11748
11749         return 0;
11750 }
11751
11752 /**
11753  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11754  * @phba: pointer to lpfc hba data structure.
11755  *
11756  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11757  * aborts all the outstanding SCSI I/Os to the pci device.
11758  **/
11759 static void
11760 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11761 {
11762         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11763                         "2723 PCI channel I/O abort preparing for recovery\n");
11764
11765         /*
11766          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11767          * and let the SCSI mid-layer to retry them to recover.
11768          */
11769         lpfc_sli_abort_fcp_rings(phba);
11770 }
11771
11772 /**
11773  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11774  * @phba: pointer to lpfc hba data structure.
11775  *
11776  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11777  * disables the device interrupt and pci device, and aborts the internal FCP
11778  * pending I/Os.
11779  **/
11780 static void
11781 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11782 {
11783         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11784                         "2710 PCI channel disable preparing for reset\n");
11785
11786         /* Block any management I/Os to the device */
11787         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11788
11789         /* Block all SCSI devices' I/Os on the host */
11790         lpfc_scsi_dev_block(phba);
11791
11792         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11793         lpfc_sli_flush_fcp_rings(phba);
11794
11795         /* stop all timers */
11796         lpfc_stop_hba_timers(phba);
11797
11798         /* Disable interrupt and pci device */
11799         lpfc_sli_disable_intr(phba);
11800         pci_disable_device(phba->pcidev);
11801 }
11802
11803 /**
11804  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11805  * @phba: pointer to lpfc hba data structure.
11806  *
11807  * This routine is called to prepare the SLI3 device for PCI slot permanently
11808  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11809  * pending I/Os.
11810  **/
11811 static void
11812 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11813 {
11814         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11815                         "2711 PCI channel permanent disable for failure\n");
11816         /* Block all SCSI devices' I/Os on the host */
11817         lpfc_scsi_dev_block(phba);
11818
11819         /* stop all timers */
11820         lpfc_stop_hba_timers(phba);
11821
11822         /* Clean up all driver's outstanding SCSI I/Os */
11823         lpfc_sli_flush_fcp_rings(phba);
11824 }
11825
11826 /**
11827  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11828  * @pdev: pointer to PCI device.
11829  * @state: the current PCI connection state.
11830  *
11831  * This routine is called from the PCI subsystem for I/O error handling to
11832  * device with SLI-3 interface spec. This function is called by the PCI
11833  * subsystem after a PCI bus error affecting this device has been detected.
11834  * When this function is invoked, it will need to stop all the I/Os and
11835  * interrupt(s) to the device. Once that is done, it will return
11836  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11837  * as desired.
11838  *
11839  * Return codes
11840  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11841  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11842  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11843  **/
11844 static pci_ers_result_t
11845 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11846 {
11847         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11848         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11849
11850         switch (state) {
11851         case pci_channel_io_normal:
11852                 /* Non-fatal error, prepare for recovery */
11853                 lpfc_sli_prep_dev_for_recover(phba);
11854                 return PCI_ERS_RESULT_CAN_RECOVER;
11855         case pci_channel_io_frozen:
11856                 /* Fatal error, prepare for slot reset */
11857                 lpfc_sli_prep_dev_for_reset(phba);
11858                 return PCI_ERS_RESULT_NEED_RESET;
11859         case pci_channel_io_perm_failure:
11860                 /* Permanent failure, prepare for device down */
11861                 lpfc_sli_prep_dev_for_perm_failure(phba);
11862                 return PCI_ERS_RESULT_DISCONNECT;
11863         default:
11864                 /* Unknown state, prepare and request slot reset */
11865                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11866                                 "0472 Unknown PCI error state: x%x\n", state);
11867                 lpfc_sli_prep_dev_for_reset(phba);
11868                 return PCI_ERS_RESULT_NEED_RESET;
11869         }
11870 }
11871
11872 /**
11873  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11874  * @pdev: pointer to PCI device.
11875  *
11876  * This routine is called from the PCI subsystem for error handling to
11877  * device with SLI-3 interface spec. This is called after PCI bus has been
11878  * reset to restart the PCI card from scratch, as if from a cold-boot.
11879  * During the PCI subsystem error recovery, after driver returns
11880  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11881  * recovery and then call this routine before calling the .resume method
11882  * to recover the device. This function will initialize the HBA device,
11883  * enable the interrupt, but it will just put the HBA to offline state
11884  * without passing any I/O traffic.
11885  *
11886  * Return codes
11887  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11888  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11889  */
11890 static pci_ers_result_t
11891 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11892 {
11893         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11894         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11895         struct lpfc_sli *psli = &phba->sli;
11896         uint32_t intr_mode;
11897
11898         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11899         if (pci_enable_device_mem(pdev)) {
11900                 printk(KERN_ERR "lpfc: Cannot re-enable "
11901                         "PCI device after reset.\n");
11902                 return PCI_ERS_RESULT_DISCONNECT;
11903         }
11904
11905         pci_restore_state(pdev);
11906
11907         /*
11908          * As the new kernel behavior of pci_restore_state() API call clears
11909          * device saved_state flag, need to save the restored state again.
11910          */
11911         pci_save_state(pdev);
11912
11913         if (pdev->is_busmaster)
11914                 pci_set_master(pdev);
11915
11916         spin_lock_irq(&phba->hbalock);
11917         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11918         spin_unlock_irq(&phba->hbalock);
11919
11920         /* Configure and enable interrupt */
11921         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11922         if (intr_mode == LPFC_INTR_ERROR) {
11923                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11924                                 "0427 Cannot re-enable interrupt after "
11925                                 "slot reset.\n");
11926                 return PCI_ERS_RESULT_DISCONNECT;
11927         } else
11928                 phba->intr_mode = intr_mode;
11929
11930         /* Take device offline, it will perform cleanup */
11931         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11932         lpfc_offline(phba);
11933         lpfc_sli_brdrestart(phba);
11934
11935         /* Log the current active interrupt mode */
11936         lpfc_log_intr_mode(phba, phba->intr_mode);
11937
11938         return PCI_ERS_RESULT_RECOVERED;
11939 }
11940
11941 /**
11942  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11943  * @pdev: pointer to PCI device
11944  *
11945  * This routine is called from the PCI subsystem for error handling to device
11946  * with SLI-3 interface spec. It is called when kernel error recovery tells
11947  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11948  * error recovery. After this call, traffic can start to flow from this device
11949  * again.
11950  */
11951 static void
11952 lpfc_io_resume_s3(struct pci_dev *pdev)
11953 {
11954         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11955         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11956
11957         /* Bring device online, it will be no-op for non-fatal error resume */
11958         lpfc_online(phba);
11959 }
11960
11961 /**
11962  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11963  * @phba: pointer to lpfc hba data structure.
11964  *
11965  * returns the number of ELS/CT IOCBs to reserve
11966  **/
11967 int
11968 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11969 {
11970         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11971
11972         if (phba->sli_rev == LPFC_SLI_REV4) {
11973                 if (max_xri <= 100)
11974                         return 10;
11975                 else if (max_xri <= 256)
11976                         return 25;
11977                 else if (max_xri <= 512)
11978                         return 50;
11979                 else if (max_xri <= 1024)
11980                         return 100;
11981                 else if (max_xri <= 1536)
11982                         return 150;
11983                 else if (max_xri <= 2048)
11984                         return 200;
11985                 else
11986                         return 250;
11987         } else
11988                 return 0;
11989 }
11990
11991 /**
11992  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11993  * @phba: pointer to lpfc hba data structure.
11994  *
11995  * returns the number of ELS/CT + NVMET IOCBs to reserve
11996  **/
11997 int
11998 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
11999 {
12000         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12001
12002         if (phba->nvmet_support)
12003                 max_xri += LPFC_NVMET_BUF_POST;
12004         return max_xri;
12005 }
12006
12007
12008 static void
12009 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12010         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12011         const struct firmware *fw)
12012 {
12013         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12014             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12015              magic_number != MAGIC_NUMER_G6) ||
12016             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12017              magic_number != MAGIC_NUMER_G7))
12018                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12019                         "3030 This firmware version is not supported on "
12020                         "this HBA model. Device:%x Magic:%x Type:%x "
12021                         "ID:%x Size %d %zd\n",
12022                         phba->pcidev->device, magic_number, ftype, fid,
12023                         fsize, fw->size);
12024         else
12025                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12026                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12027                         "ID:%x Size %d %zd\n",
12028                         phba->pcidev->device, magic_number, ftype, fid,
12029                         fsize, fw->size);
12030 }
12031
12032
12033 /**
12034  * lpfc_write_firmware - attempt to write a firmware image to the port
12035  * @fw: pointer to firmware image returned from request_firmware.
12036  * @phba: pointer to lpfc hba data structure.
12037  *
12038  **/
12039 static void
12040 lpfc_write_firmware(const struct firmware *fw, void *context)
12041 {
12042         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12043         char fwrev[FW_REV_STR_SIZE];
12044         struct lpfc_grp_hdr *image;
12045         struct list_head dma_buffer_list;
12046         int i, rc = 0;
12047         struct lpfc_dmabuf *dmabuf, *next;
12048         uint32_t offset = 0, temp_offset = 0;
12049         uint32_t magic_number, ftype, fid, fsize;
12050
12051         /* It can be null in no-wait mode, sanity check */
12052         if (!fw) {
12053                 rc = -ENXIO;
12054                 goto out;
12055         }
12056         image = (struct lpfc_grp_hdr *)fw->data;
12057
12058         magic_number = be32_to_cpu(image->magic_number);
12059         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12060         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12061         fsize = be32_to_cpu(image->size);
12062
12063         INIT_LIST_HEAD(&dma_buffer_list);
12064         lpfc_decode_firmware_rev(phba, fwrev, 1);
12065         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12066                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12067                                 "3023 Updating Firmware, Current Version:%s "
12068                                 "New Version:%s\n",
12069                                 fwrev, image->revision);
12070                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12071                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12072                                          GFP_KERNEL);
12073                         if (!dmabuf) {
12074                                 rc = -ENOMEM;
12075                                 goto release_out;
12076                         }
12077                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12078                                                           SLI4_PAGE_SIZE,
12079                                                           &dmabuf->phys,
12080                                                           GFP_KERNEL);
12081                         if (!dmabuf->virt) {
12082                                 kfree(dmabuf);
12083                                 rc = -ENOMEM;
12084                                 goto release_out;
12085                         }
12086                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12087                 }
12088                 while (offset < fw->size) {
12089                         temp_offset = offset;
12090                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12091                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12092                                         memcpy(dmabuf->virt,
12093                                                fw->data + temp_offset,
12094                                                fw->size - temp_offset);
12095                                         temp_offset = fw->size;
12096                                         break;
12097                                 }
12098                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12099                                        SLI4_PAGE_SIZE);
12100                                 temp_offset += SLI4_PAGE_SIZE;
12101                         }
12102                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12103                                     (fw->size - offset), &offset);
12104                         if (rc) {
12105                                 lpfc_log_write_firmware_error(phba, offset,
12106                                         magic_number, ftype, fid, fsize, fw);
12107                                 goto release_out;
12108                         }
12109                 }
12110                 rc = offset;
12111         } else
12112                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12113                                 "3029 Skipped Firmware update, Current "
12114                                 "Version:%s New Version:%s\n",
12115                                 fwrev, image->revision);
12116
12117 release_out:
12118         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12119                 list_del(&dmabuf->list);
12120                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12121                                   dmabuf->virt, dmabuf->phys);
12122                 kfree(dmabuf);
12123         }
12124         release_firmware(fw);
12125 out:
12126         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12127                         "3024 Firmware update done: %d.\n", rc);
12128         return;
12129 }
12130
12131 /**
12132  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12133  * @phba: pointer to lpfc hba data structure.
12134  *
12135  * This routine is called to perform Linux generic firmware upgrade on device
12136  * that supports such feature.
12137  **/
12138 int
12139 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12140 {
12141         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12142         int ret;
12143         const struct firmware *fw;
12144
12145         /* Only supported on SLI4 interface type 2 for now */
12146         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12147             LPFC_SLI_INTF_IF_TYPE_2)
12148                 return -EPERM;
12149
12150         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12151
12152         if (fw_upgrade == INT_FW_UPGRADE) {
12153                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12154                                         file_name, &phba->pcidev->dev,
12155                                         GFP_KERNEL, (void *)phba,
12156                                         lpfc_write_firmware);
12157         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12158                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12159                 if (!ret)
12160                         lpfc_write_firmware(fw, (void *)phba);
12161         } else {
12162                 ret = -EINVAL;
12163         }
12164
12165         return ret;
12166 }
12167
12168 /**
12169  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12170  * @pdev: pointer to PCI device
12171  * @pid: pointer to PCI device identifier
12172  *
12173  * This routine is called from the kernel's PCI subsystem to device with
12174  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12175  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12176  * information of the device and driver to see if the driver state that it
12177  * can support this kind of device. If the match is successful, the driver
12178  * core invokes this routine. If this routine determines it can claim the HBA,
12179  * it does all the initialization that it needs to do to handle the HBA
12180  * properly.
12181  *
12182  * Return code
12183  *      0 - driver can claim the device
12184  *      negative value - driver can not claim the device
12185  **/
12186 static int
12187 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12188 {
12189         struct lpfc_hba   *phba;
12190         struct lpfc_vport *vport = NULL;
12191         struct Scsi_Host  *shost = NULL;
12192         int error;
12193         uint32_t cfg_mode, intr_mode;
12194
12195         /* Allocate memory for HBA structure */
12196         phba = lpfc_hba_alloc(pdev);
12197         if (!phba)
12198                 return -ENOMEM;
12199
12200         /* Perform generic PCI device enabling operation */
12201         error = lpfc_enable_pci_dev(phba);
12202         if (error)
12203                 goto out_free_phba;
12204
12205         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12206         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12207         if (error)
12208                 goto out_disable_pci_dev;
12209
12210         /* Set up SLI-4 specific device PCI memory space */
12211         error = lpfc_sli4_pci_mem_setup(phba);
12212         if (error) {
12213                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12214                                 "1410 Failed to set up pci memory space.\n");
12215                 goto out_disable_pci_dev;
12216         }
12217
12218         /* Set up SLI-4 Specific device driver resources */
12219         error = lpfc_sli4_driver_resource_setup(phba);
12220         if (error) {
12221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12222                                 "1412 Failed to set up driver resource.\n");
12223                 goto out_unset_pci_mem_s4;
12224         }
12225
12226         INIT_LIST_HEAD(&phba->active_rrq_list);
12227         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12228
12229         /* Set up common device driver resources */
12230         error = lpfc_setup_driver_resource_phase2(phba);
12231         if (error) {
12232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12233                                 "1414 Failed to set up driver resource.\n");
12234                 goto out_unset_driver_resource_s4;
12235         }
12236
12237         /* Get the default values for Model Name and Description */
12238         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12239
12240         /* Now, trying to enable interrupt and bring up the device */
12241         cfg_mode = phba->cfg_use_msi;
12242
12243         /* Put device to a known state before enabling interrupt */
12244         phba->pport = NULL;
12245         lpfc_stop_port(phba);
12246
12247         /* Configure and enable interrupt */
12248         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12249         if (intr_mode == LPFC_INTR_ERROR) {
12250                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12251                                 "0426 Failed to enable interrupt.\n");
12252                 error = -ENODEV;
12253                 goto out_unset_driver_resource;
12254         }
12255         /* Default to single EQ for non-MSI-X */
12256         if (phba->intr_type != MSIX) {
12257                 phba->cfg_irq_chann = 1;
12258                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12259                         if (phba->nvmet_support)
12260                                 phba->cfg_nvmet_mrq = 1;
12261                 }
12262         }
12263         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12264
12265         /* Create SCSI host to the physical port */
12266         error = lpfc_create_shost(phba);
12267         if (error) {
12268                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12269                                 "1415 Failed to create scsi host.\n");
12270                 goto out_disable_intr;
12271         }
12272         vport = phba->pport;
12273         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12274
12275         /* Configure sysfs attributes */
12276         error = lpfc_alloc_sysfs_attr(vport);
12277         if (error) {
12278                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12279                                 "1416 Failed to allocate sysfs attr\n");
12280                 goto out_destroy_shost;
12281         }
12282
12283         /* Set up SLI-4 HBA */
12284         if (lpfc_sli4_hba_setup(phba)) {
12285                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12286                                 "1421 Failed to set up hba\n");
12287                 error = -ENODEV;
12288                 goto out_free_sysfs_attr;
12289         }
12290
12291         /* Log the current active interrupt mode */
12292         phba->intr_mode = intr_mode;
12293         lpfc_log_intr_mode(phba, intr_mode);
12294
12295         /* Perform post initialization setup */
12296         lpfc_post_init_setup(phba);
12297
12298         /* NVME support in FW earlier in the driver load corrects the
12299          * FC4 type making a check for nvme_support unnecessary.
12300          */
12301         if (phba->nvmet_support == 0) {
12302                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12303                         /* Create NVME binding with nvme_fc_transport. This
12304                          * ensures the vport is initialized.  If the localport
12305                          * create fails, it should not unload the driver to
12306                          * support field issues.
12307                          */
12308                         error = lpfc_nvme_create_localport(vport);
12309                         if (error) {
12310                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12311                                                 "6004 NVME registration "
12312                                                 "failed, error x%x\n",
12313                                                 error);
12314                         }
12315                 }
12316         }
12317
12318         /* check for firmware upgrade or downgrade */
12319         if (phba->cfg_request_firmware_upgrade)
12320                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12321
12322         /* Check if there are static vports to be created. */
12323         lpfc_create_static_vport(phba);
12324
12325         /* Enable RAS FW log support */
12326         lpfc_sli4_ras_setup(phba);
12327
12328         return 0;
12329
12330 out_free_sysfs_attr:
12331         lpfc_free_sysfs_attr(vport);
12332 out_destroy_shost:
12333         lpfc_destroy_shost(phba);
12334 out_disable_intr:
12335         lpfc_sli4_disable_intr(phba);
12336 out_unset_driver_resource:
12337         lpfc_unset_driver_resource_phase2(phba);
12338 out_unset_driver_resource_s4:
12339         lpfc_sli4_driver_resource_unset(phba);
12340 out_unset_pci_mem_s4:
12341         lpfc_sli4_pci_mem_unset(phba);
12342 out_disable_pci_dev:
12343         lpfc_disable_pci_dev(phba);
12344         if (shost)
12345                 scsi_host_put(shost);
12346 out_free_phba:
12347         lpfc_hba_free(phba);
12348         return error;
12349 }
12350
12351 /**
12352  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12353  * @pdev: pointer to PCI device
12354  *
12355  * This routine is called from the kernel's PCI subsystem to device with
12356  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12357  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12358  * device to be removed from the PCI subsystem properly.
12359  **/
12360 static void
12361 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12362 {
12363         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12364         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12365         struct lpfc_vport **vports;
12366         struct lpfc_hba *phba = vport->phba;
12367         int i;
12368
12369         /* Mark the device unloading flag */
12370         spin_lock_irq(&phba->hbalock);
12371         vport->load_flag |= FC_UNLOADING;
12372         spin_unlock_irq(&phba->hbalock);
12373
12374         /* Free the HBA sysfs attributes */
12375         lpfc_free_sysfs_attr(vport);
12376
12377         /* Release all the vports against this physical port */
12378         vports = lpfc_create_vport_work_array(phba);
12379         if (vports != NULL)
12380                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12381                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12382                                 continue;
12383                         fc_vport_terminate(vports[i]->fc_vport);
12384                 }
12385         lpfc_destroy_vport_work_array(phba, vports);
12386
12387         /* Remove FC host and then SCSI host with the physical port */
12388         fc_remove_host(shost);
12389         scsi_remove_host(shost);
12390
12391         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12392          * localports are destroyed after to cleanup all transport memory.
12393          */
12394         lpfc_cleanup(vport);
12395         lpfc_nvmet_destroy_targetport(phba);
12396         lpfc_nvme_destroy_localport(vport);
12397
12398         /* De-allocate multi-XRI pools */
12399         if (phba->cfg_xri_rebalancing)
12400                 lpfc_destroy_multixri_pools(phba);
12401
12402         /*
12403          * Bring down the SLI Layer. This step disables all interrupts,
12404          * clears the rings, discards all mailbox commands, and resets
12405          * the HBA FCoE function.
12406          */
12407         lpfc_debugfs_terminate(vport);
12408
12409         lpfc_stop_hba_timers(phba);
12410         spin_lock_irq(&phba->port_list_lock);
12411         list_del_init(&vport->listentry);
12412         spin_unlock_irq(&phba->port_list_lock);
12413
12414         /* Perform scsi free before driver resource_unset since scsi
12415          * buffers are released to their corresponding pools here.
12416          */
12417         lpfc_io_free(phba);
12418         lpfc_free_iocb_list(phba);
12419         lpfc_sli4_hba_unset(phba);
12420
12421         lpfc_unset_driver_resource_phase2(phba);
12422         lpfc_sli4_driver_resource_unset(phba);
12423
12424         /* Unmap adapter Control and Doorbell registers */
12425         lpfc_sli4_pci_mem_unset(phba);
12426
12427         /* Release PCI resources and disable device's PCI function */
12428         scsi_host_put(shost);
12429         lpfc_disable_pci_dev(phba);
12430
12431         /* Finally, free the driver's device data structure */
12432         lpfc_hba_free(phba);
12433
12434         return;
12435 }
12436
12437 /**
12438  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12439  * @pdev: pointer to PCI device
12440  * @msg: power management message
12441  *
12442  * This routine is called from the kernel's PCI subsystem to support system
12443  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12444  * this method, it quiesces the device by stopping the driver's worker
12445  * thread for the device, turning off device's interrupt and DMA, and bring
12446  * the device offline. Note that as the driver implements the minimum PM
12447  * requirements to a power-aware driver's PM support for suspend/resume -- all
12448  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12449  * method call will be treated as SUSPEND and the driver will fully
12450  * reinitialize its device during resume() method call, the driver will set
12451  * device to PCI_D3hot state in PCI config space instead of setting it
12452  * according to the @msg provided by the PM.
12453  *
12454  * Return code
12455  *      0 - driver suspended the device
12456  *      Error otherwise
12457  **/
12458 static int
12459 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12460 {
12461         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12462         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12463
12464         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12465                         "2843 PCI device Power Management suspend.\n");
12466
12467         /* Bring down the device */
12468         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12469         lpfc_offline(phba);
12470         kthread_stop(phba->worker_thread);
12471
12472         /* Disable interrupt from device */
12473         lpfc_sli4_disable_intr(phba);
12474         lpfc_sli4_queue_destroy(phba);
12475
12476         /* Save device state to PCI config space */
12477         pci_save_state(pdev);
12478         pci_set_power_state(pdev, PCI_D3hot);
12479
12480         return 0;
12481 }
12482
12483 /**
12484  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12485  * @pdev: pointer to PCI device
12486  *
12487  * This routine is called from the kernel's PCI subsystem to support system
12488  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12489  * this method, it restores the device's PCI config space state and fully
12490  * reinitializes the device and brings it online. Note that as the driver
12491  * implements the minimum PM requirements to a power-aware driver's PM for
12492  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12493  * to the suspend() method call will be treated as SUSPEND and the driver
12494  * will fully reinitialize its device during resume() method call, the device
12495  * will be set to PCI_D0 directly in PCI config space before restoring the
12496  * state.
12497  *
12498  * Return code
12499  *      0 - driver suspended the device
12500  *      Error otherwise
12501  **/
12502 static int
12503 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12504 {
12505         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12506         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12507         uint32_t intr_mode;
12508         int error;
12509
12510         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12511                         "0292 PCI device Power Management resume.\n");
12512
12513         /* Restore device state from PCI config space */
12514         pci_set_power_state(pdev, PCI_D0);
12515         pci_restore_state(pdev);
12516
12517         /*
12518          * As the new kernel behavior of pci_restore_state() API call clears
12519          * device saved_state flag, need to save the restored state again.
12520          */
12521         pci_save_state(pdev);
12522
12523         if (pdev->is_busmaster)
12524                 pci_set_master(pdev);
12525
12526          /* Startup the kernel thread for this host adapter. */
12527         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12528                                         "lpfc_worker_%d", phba->brd_no);
12529         if (IS_ERR(phba->worker_thread)) {
12530                 error = PTR_ERR(phba->worker_thread);
12531                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12532                                 "0293 PM resume failed to start worker "
12533                                 "thread: error=x%x.\n", error);
12534                 return error;
12535         }
12536
12537         /* Configure and enable interrupt */
12538         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12539         if (intr_mode == LPFC_INTR_ERROR) {
12540                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12541                                 "0294 PM resume Failed to enable interrupt\n");
12542                 return -EIO;
12543         } else
12544                 phba->intr_mode = intr_mode;
12545
12546         /* Restart HBA and bring it online */
12547         lpfc_sli_brdrestart(phba);
12548         lpfc_online(phba);
12549
12550         /* Log the current active interrupt mode */
12551         lpfc_log_intr_mode(phba, phba->intr_mode);
12552
12553         return 0;
12554 }
12555
12556 /**
12557  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12558  * @phba: pointer to lpfc hba data structure.
12559  *
12560  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12561  * aborts all the outstanding SCSI I/Os to the pci device.
12562  **/
12563 static void
12564 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12565 {
12566         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12567                         "2828 PCI channel I/O abort preparing for recovery\n");
12568         /*
12569          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12570          * and let the SCSI mid-layer to retry them to recover.
12571          */
12572         lpfc_sli_abort_fcp_rings(phba);
12573 }
12574
12575 /**
12576  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12577  * @phba: pointer to lpfc hba data structure.
12578  *
12579  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12580  * disables the device interrupt and pci device, and aborts the internal FCP
12581  * pending I/Os.
12582  **/
12583 static void
12584 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12585 {
12586         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12587                         "2826 PCI channel disable preparing for reset\n");
12588
12589         /* Block any management I/Os to the device */
12590         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12591
12592         /* Block all SCSI devices' I/Os on the host */
12593         lpfc_scsi_dev_block(phba);
12594
12595         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12596         lpfc_sli_flush_fcp_rings(phba);
12597
12598         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12599         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12600                 lpfc_sli_flush_nvme_rings(phba);
12601
12602         /* stop all timers */
12603         lpfc_stop_hba_timers(phba);
12604
12605         /* Disable interrupt and pci device */
12606         lpfc_sli4_disable_intr(phba);
12607         lpfc_sli4_queue_destroy(phba);
12608         pci_disable_device(phba->pcidev);
12609 }
12610
12611 /**
12612  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12613  * @phba: pointer to lpfc hba data structure.
12614  *
12615  * This routine is called to prepare the SLI4 device for PCI slot permanently
12616  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12617  * pending I/Os.
12618  **/
12619 static void
12620 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12621 {
12622         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12623                         "2827 PCI channel permanent disable for failure\n");
12624
12625         /* Block all SCSI devices' I/Os on the host */
12626         lpfc_scsi_dev_block(phba);
12627
12628         /* stop all timers */
12629         lpfc_stop_hba_timers(phba);
12630
12631         /* Clean up all driver's outstanding SCSI I/Os */
12632         lpfc_sli_flush_fcp_rings(phba);
12633
12634         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12635         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12636                 lpfc_sli_flush_nvme_rings(phba);
12637 }
12638
12639 /**
12640  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12641  * @pdev: pointer to PCI device.
12642  * @state: the current PCI connection state.
12643  *
12644  * This routine is called from the PCI subsystem for error handling to device
12645  * with SLI-4 interface spec. This function is called by the PCI subsystem
12646  * after a PCI bus error affecting this device has been detected. When this
12647  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12648  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12649  * for the PCI subsystem to perform proper recovery as desired.
12650  *
12651  * Return codes
12652  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12653  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12654  **/
12655 static pci_ers_result_t
12656 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12657 {
12658         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12659         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12660
12661         switch (state) {
12662         case pci_channel_io_normal:
12663                 /* Non-fatal error, prepare for recovery */
12664                 lpfc_sli4_prep_dev_for_recover(phba);
12665                 return PCI_ERS_RESULT_CAN_RECOVER;
12666         case pci_channel_io_frozen:
12667                 /* Fatal error, prepare for slot reset */
12668                 lpfc_sli4_prep_dev_for_reset(phba);
12669                 return PCI_ERS_RESULT_NEED_RESET;
12670         case pci_channel_io_perm_failure:
12671                 /* Permanent failure, prepare for device down */
12672                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12673                 return PCI_ERS_RESULT_DISCONNECT;
12674         default:
12675                 /* Unknown state, prepare and request slot reset */
12676                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12677                                 "2825 Unknown PCI error state: x%x\n", state);
12678                 lpfc_sli4_prep_dev_for_reset(phba);
12679                 return PCI_ERS_RESULT_NEED_RESET;
12680         }
12681 }
12682
12683 /**
12684  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12685  * @pdev: pointer to PCI device.
12686  *
12687  * This routine is called from the PCI subsystem for error handling to device
12688  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12689  * restart the PCI card from scratch, as if from a cold-boot. During the
12690  * PCI subsystem error recovery, after the driver returns
12691  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12692  * recovery and then call this routine before calling the .resume method to
12693  * recover the device. This function will initialize the HBA device, enable
12694  * the interrupt, but it will just put the HBA to offline state without
12695  * passing any I/O traffic.
12696  *
12697  * Return codes
12698  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12699  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12700  */
12701 static pci_ers_result_t
12702 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12703 {
12704         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12705         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12706         struct lpfc_sli *psli = &phba->sli;
12707         uint32_t intr_mode;
12708
12709         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12710         if (pci_enable_device_mem(pdev)) {
12711                 printk(KERN_ERR "lpfc: Cannot re-enable "
12712                         "PCI device after reset.\n");
12713                 return PCI_ERS_RESULT_DISCONNECT;
12714         }
12715
12716         pci_restore_state(pdev);
12717
12718         /*
12719          * As the new kernel behavior of pci_restore_state() API call clears
12720          * device saved_state flag, need to save the restored state again.
12721          */
12722         pci_save_state(pdev);
12723
12724         if (pdev->is_busmaster)
12725                 pci_set_master(pdev);
12726
12727         spin_lock_irq(&phba->hbalock);
12728         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12729         spin_unlock_irq(&phba->hbalock);
12730
12731         /* Configure and enable interrupt */
12732         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12733         if (intr_mode == LPFC_INTR_ERROR) {
12734                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12735                                 "2824 Cannot re-enable interrupt after "
12736                                 "slot reset.\n");
12737                 return PCI_ERS_RESULT_DISCONNECT;
12738         } else
12739                 phba->intr_mode = intr_mode;
12740
12741         /* Log the current active interrupt mode */
12742         lpfc_log_intr_mode(phba, phba->intr_mode);
12743
12744         return PCI_ERS_RESULT_RECOVERED;
12745 }
12746
12747 /**
12748  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12749  * @pdev: pointer to PCI device
12750  *
12751  * This routine is called from the PCI subsystem for error handling to device
12752  * with SLI-4 interface spec. It is called when kernel error recovery tells
12753  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12754  * error recovery. After this call, traffic can start to flow from this device
12755  * again.
12756  **/
12757 static void
12758 lpfc_io_resume_s4(struct pci_dev *pdev)
12759 {
12760         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12761         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12762
12763         /*
12764          * In case of slot reset, as function reset is performed through
12765          * mailbox command which needs DMA to be enabled, this operation
12766          * has to be moved to the io resume phase. Taking device offline
12767          * will perform the necessary cleanup.
12768          */
12769         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12770                 /* Perform device reset */
12771                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12772                 lpfc_offline(phba);
12773                 lpfc_sli_brdrestart(phba);
12774                 /* Bring the device back online */
12775                 lpfc_online(phba);
12776         }
12777 }
12778
12779 /**
12780  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12781  * @pdev: pointer to PCI device
12782  * @pid: pointer to PCI device identifier
12783  *
12784  * This routine is to be registered to the kernel's PCI subsystem. When an
12785  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12786  * at PCI device-specific information of the device and driver to see if the
12787  * driver state that it can support this kind of device. If the match is
12788  * successful, the driver core invokes this routine. This routine dispatches
12789  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12790  * do all the initialization that it needs to do to handle the HBA device
12791  * properly.
12792  *
12793  * Return code
12794  *      0 - driver can claim the device
12795  *      negative value - driver can not claim the device
12796  **/
12797 static int
12798 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12799 {
12800         int rc;
12801         struct lpfc_sli_intf intf;
12802
12803         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12804                 return -ENODEV;
12805
12806         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12807             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12808                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12809         else
12810                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12811
12812         return rc;
12813 }
12814
12815 /**
12816  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12817  * @pdev: pointer to PCI device
12818  *
12819  * This routine is to be registered to the kernel's PCI subsystem. When an
12820  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12821  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12822  * remove routine, which will perform all the necessary cleanup for the
12823  * device to be removed from the PCI subsystem properly.
12824  **/
12825 static void
12826 lpfc_pci_remove_one(struct pci_dev *pdev)
12827 {
12828         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12829         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12830
12831         switch (phba->pci_dev_grp) {
12832         case LPFC_PCI_DEV_LP:
12833                 lpfc_pci_remove_one_s3(pdev);
12834                 break;
12835         case LPFC_PCI_DEV_OC:
12836                 lpfc_pci_remove_one_s4(pdev);
12837                 break;
12838         default:
12839                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12840                                 "1424 Invalid PCI device group: 0x%x\n",
12841                                 phba->pci_dev_grp);
12842                 break;
12843         }
12844         return;
12845 }
12846
12847 /**
12848  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12849  * @pdev: pointer to PCI device
12850  * @msg: power management message
12851  *
12852  * This routine is to be registered to the kernel's PCI subsystem to support
12853  * system Power Management (PM). When PM invokes this method, it dispatches
12854  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12855  * suspend the device.
12856  *
12857  * Return code
12858  *      0 - driver suspended the device
12859  *      Error otherwise
12860  **/
12861 static int
12862 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12863 {
12864         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12865         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12866         int rc = -ENODEV;
12867
12868         switch (phba->pci_dev_grp) {
12869         case LPFC_PCI_DEV_LP:
12870                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12871                 break;
12872         case LPFC_PCI_DEV_OC:
12873                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12874                 break;
12875         default:
12876                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12877                                 "1425 Invalid PCI device group: 0x%x\n",
12878                                 phba->pci_dev_grp);
12879                 break;
12880         }
12881         return rc;
12882 }
12883
12884 /**
12885  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12886  * @pdev: pointer to PCI device
12887  *
12888  * This routine is to be registered to the kernel's PCI subsystem to support
12889  * system Power Management (PM). When PM invokes this method, it dispatches
12890  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12891  * resume the device.
12892  *
12893  * Return code
12894  *      0 - driver suspended the device
12895  *      Error otherwise
12896  **/
12897 static int
12898 lpfc_pci_resume_one(struct pci_dev *pdev)
12899 {
12900         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12901         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12902         int rc = -ENODEV;
12903
12904         switch (phba->pci_dev_grp) {
12905         case LPFC_PCI_DEV_LP:
12906                 rc = lpfc_pci_resume_one_s3(pdev);
12907                 break;
12908         case LPFC_PCI_DEV_OC:
12909                 rc = lpfc_pci_resume_one_s4(pdev);
12910                 break;
12911         default:
12912                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12913                                 "1426 Invalid PCI device group: 0x%x\n",
12914                                 phba->pci_dev_grp);
12915                 break;
12916         }
12917         return rc;
12918 }
12919
12920 /**
12921  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12922  * @pdev: pointer to PCI device.
12923  * @state: the current PCI connection state.
12924  *
12925  * This routine is registered to the PCI subsystem for error handling. This
12926  * function is called by the PCI subsystem after a PCI bus error affecting
12927  * this device has been detected. When this routine is invoked, it dispatches
12928  * the action to the proper SLI-3 or SLI-4 device error detected handling
12929  * routine, which will perform the proper error detected operation.
12930  *
12931  * Return codes
12932  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12933  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12934  **/
12935 static pci_ers_result_t
12936 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12937 {
12938         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12939         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12940         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12941
12942         switch (phba->pci_dev_grp) {
12943         case LPFC_PCI_DEV_LP:
12944                 rc = lpfc_io_error_detected_s3(pdev, state);
12945                 break;
12946         case LPFC_PCI_DEV_OC:
12947                 rc = lpfc_io_error_detected_s4(pdev, state);
12948                 break;
12949         default:
12950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12951                                 "1427 Invalid PCI device group: 0x%x\n",
12952                                 phba->pci_dev_grp);
12953                 break;
12954         }
12955         return rc;
12956 }
12957
12958 /**
12959  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12960  * @pdev: pointer to PCI device.
12961  *
12962  * This routine is registered to the PCI subsystem for error handling. This
12963  * function is called after PCI bus has been reset to restart the PCI card
12964  * from scratch, as if from a cold-boot. When this routine is invoked, it
12965  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12966  * routine, which will perform the proper device reset.
12967  *
12968  * Return codes
12969  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12970  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12971  **/
12972 static pci_ers_result_t
12973 lpfc_io_slot_reset(struct pci_dev *pdev)
12974 {
12975         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12976         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12977         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12978
12979         switch (phba->pci_dev_grp) {
12980         case LPFC_PCI_DEV_LP:
12981                 rc = lpfc_io_slot_reset_s3(pdev);
12982                 break;
12983         case LPFC_PCI_DEV_OC:
12984                 rc = lpfc_io_slot_reset_s4(pdev);
12985                 break;
12986         default:
12987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12988                                 "1428 Invalid PCI device group: 0x%x\n",
12989                                 phba->pci_dev_grp);
12990                 break;
12991         }
12992         return rc;
12993 }
12994
12995 /**
12996  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
12997  * @pdev: pointer to PCI device
12998  *
12999  * This routine is registered to the PCI subsystem for error handling. It
13000  * is called when kernel error recovery tells the lpfc driver that it is
13001  * OK to resume normal PCI operation after PCI bus error recovery. When
13002  * this routine is invoked, it dispatches the action to the proper SLI-3
13003  * or SLI-4 device io_resume routine, which will resume the device operation.
13004  **/
13005 static void
13006 lpfc_io_resume(struct pci_dev *pdev)
13007 {
13008         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13009         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13010
13011         switch (phba->pci_dev_grp) {
13012         case LPFC_PCI_DEV_LP:
13013                 lpfc_io_resume_s3(pdev);
13014                 break;
13015         case LPFC_PCI_DEV_OC:
13016                 lpfc_io_resume_s4(pdev);
13017                 break;
13018         default:
13019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13020                                 "1429 Invalid PCI device group: 0x%x\n",
13021                                 phba->pci_dev_grp);
13022                 break;
13023         }
13024         return;
13025 }
13026
13027 /**
13028  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13029  * @phba: pointer to lpfc hba data structure.
13030  *
13031  * This routine checks to see if OAS is supported for this adapter. If
13032  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13033  * the enable oas flag is cleared and the pool created for OAS device data
13034  * is destroyed.
13035  *
13036  **/
13037 void
13038 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13039 {
13040
13041         if (!phba->cfg_EnableXLane)
13042                 return;
13043
13044         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13045                 phba->cfg_fof = 1;
13046         } else {
13047                 phba->cfg_fof = 0;
13048                 if (phba->device_data_mem_pool)
13049                         mempool_destroy(phba->device_data_mem_pool);
13050                 phba->device_data_mem_pool = NULL;
13051         }
13052
13053         return;
13054 }
13055
13056 /**
13057  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13058  * @phba: pointer to lpfc hba data structure.
13059  *
13060  * This routine checks to see if RAS is supported by the adapter. Check the
13061  * function through which RAS support enablement is to be done.
13062  **/
13063 void
13064 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13065 {
13066         switch (phba->pcidev->device) {
13067         case PCI_DEVICE_ID_LANCER_G6_FC:
13068         case PCI_DEVICE_ID_LANCER_G7_FC:
13069                 phba->ras_fwlog.ras_hwsupport = true;
13070                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13071                     phba->cfg_ras_fwlog_buffsize)
13072                         phba->ras_fwlog.ras_enabled = true;
13073                 else
13074                         phba->ras_fwlog.ras_enabled = false;
13075                 break;
13076         default:
13077                 phba->ras_fwlog.ras_hwsupport = false;
13078         }
13079 }
13080
13081
13082 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13083
13084 static const struct pci_error_handlers lpfc_err_handler = {
13085         .error_detected = lpfc_io_error_detected,
13086         .slot_reset = lpfc_io_slot_reset,
13087         .resume = lpfc_io_resume,
13088 };
13089
13090 static struct pci_driver lpfc_driver = {
13091         .name           = LPFC_DRIVER_NAME,
13092         .id_table       = lpfc_id_table,
13093         .probe          = lpfc_pci_probe_one,
13094         .remove         = lpfc_pci_remove_one,
13095         .shutdown       = lpfc_pci_remove_one,
13096         .suspend        = lpfc_pci_suspend_one,
13097         .resume         = lpfc_pci_resume_one,
13098         .err_handler    = &lpfc_err_handler,
13099 };
13100
13101 static const struct file_operations lpfc_mgmt_fop = {
13102         .owner = THIS_MODULE,
13103 };
13104
13105 static struct miscdevice lpfc_mgmt_dev = {
13106         .minor = MISC_DYNAMIC_MINOR,
13107         .name = "lpfcmgmt",
13108         .fops = &lpfc_mgmt_fop,
13109 };
13110
13111 /**
13112  * lpfc_init - lpfc module initialization routine
13113  *
13114  * This routine is to be invoked when the lpfc module is loaded into the
13115  * kernel. The special kernel macro module_init() is used to indicate the
13116  * role of this routine to the kernel as lpfc module entry point.
13117  *
13118  * Return codes
13119  *   0 - successful
13120  *   -ENOMEM - FC attach transport failed
13121  *   all others - failed
13122  */
13123 static int __init
13124 lpfc_init(void)
13125 {
13126         int error = 0;
13127
13128         printk(LPFC_MODULE_DESC "\n");
13129         printk(LPFC_COPYRIGHT "\n");
13130
13131         error = misc_register(&lpfc_mgmt_dev);
13132         if (error)
13133                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13134                         "misc_register returned with status %d", error);
13135
13136         lpfc_transport_functions.vport_create = lpfc_vport_create;
13137         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13138         lpfc_transport_template =
13139                                 fc_attach_transport(&lpfc_transport_functions);
13140         if (lpfc_transport_template == NULL)
13141                 return -ENOMEM;
13142         lpfc_vport_transport_template =
13143                 fc_attach_transport(&lpfc_vport_transport_functions);
13144         if (lpfc_vport_transport_template == NULL) {
13145                 fc_release_transport(lpfc_transport_template);
13146                 return -ENOMEM;
13147         }
13148         lpfc_nvme_cmd_template();
13149         lpfc_nvmet_cmd_template();
13150
13151         /* Initialize in case vector mapping is needed */
13152         lpfc_present_cpu = num_present_cpus();
13153
13154         error = pci_register_driver(&lpfc_driver);
13155         if (error) {
13156                 fc_release_transport(lpfc_transport_template);
13157                 fc_release_transport(lpfc_vport_transport_template);
13158         }
13159
13160         return error;
13161 }
13162
13163 /**
13164  * lpfc_exit - lpfc module removal routine
13165  *
13166  * This routine is invoked when the lpfc module is removed from the kernel.
13167  * The special kernel macro module_exit() is used to indicate the role of
13168  * this routine to the kernel as lpfc module exit point.
13169  */
13170 static void __exit
13171 lpfc_exit(void)
13172 {
13173         misc_deregister(&lpfc_mgmt_dev);
13174         pci_unregister_driver(&lpfc_driver);
13175         fc_release_transport(lpfc_transport_template);
13176         fc_release_transport(lpfc_vport_transport_template);
13177         if (_dump_buf_data) {
13178                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
13179                                 "_dump_buf_data at 0x%p\n",
13180                                 (1L << _dump_buf_data_order), _dump_buf_data);
13181                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
13182         }
13183
13184         if (_dump_buf_dif) {
13185                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
13186                                 "_dump_buf_dif at 0x%p\n",
13187                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
13188                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
13189         }
13190         idr_destroy(&lpfc_hba_index);
13191 }
13192
13193 module_init(lpfc_init);
13194 module_exit(lpfc_exit);
13195 MODULE_LICENSE("GPL");
13196 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13197 MODULE_AUTHOR("Broadcom");
13198 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);