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) 2017-2019 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                 spin_lock_init(&lpfc_ncmd->buf_lock);
4164
4165                 /* add the nvme buffer to a post list */
4166                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4167                 phba->sli4_hba.io_xri_cnt++;
4168         }
4169         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4170                         "6114 Allocate %d out of %d requested new NVME "
4171                         "buffers\n", bcnt, num_to_alloc);
4172
4173         /* post the list of nvme buffer sgls to port if available */
4174         if (!list_empty(&post_nblist))
4175                 num_posted = lpfc_sli4_post_io_sgl_list(
4176                                 phba, &post_nblist, bcnt);
4177         else
4178                 num_posted = 0;
4179
4180         return num_posted;
4181 }
4182
4183 static uint64_t
4184 lpfc_get_wwpn(struct lpfc_hba *phba)
4185 {
4186         uint64_t wwn;
4187         int rc;
4188         LPFC_MBOXQ_t *mboxq;
4189         MAILBOX_t *mb;
4190
4191         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4192                                                 GFP_KERNEL);
4193         if (!mboxq)
4194                 return (uint64_t)-1;
4195
4196         /* First get WWN of HBA instance */
4197         lpfc_read_nv(phba, mboxq);
4198         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4199         if (rc != MBX_SUCCESS) {
4200                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4201                                 "6019 Mailbox failed , mbxCmd x%x "
4202                                 "READ_NV, mbxStatus x%x\n",
4203                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4204                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4205                 mempool_free(mboxq, phba->mbox_mem_pool);
4206                 return (uint64_t) -1;
4207         }
4208         mb = &mboxq->u.mb;
4209         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4210         /* wwn is WWPN of HBA instance */
4211         mempool_free(mboxq, phba->mbox_mem_pool);
4212         if (phba->sli_rev == LPFC_SLI_REV4)
4213                 return be64_to_cpu(wwn);
4214         else
4215                 return rol64(wwn, 32);
4216 }
4217
4218 /**
4219  * lpfc_create_port - Create an FC port
4220  * @phba: pointer to lpfc hba data structure.
4221  * @instance: a unique integer ID to this FC port.
4222  * @dev: pointer to the device data structure.
4223  *
4224  * This routine creates a FC port for the upper layer protocol. The FC port
4225  * can be created on top of either a physical port or a virtual port provided
4226  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4227  * and associates the FC port created before adding the shost into the SCSI
4228  * layer.
4229  *
4230  * Return codes
4231  *   @vport - pointer to the virtual N_Port data structure.
4232  *   NULL - port create failed.
4233  **/
4234 struct lpfc_vport *
4235 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4236 {
4237         struct lpfc_vport *vport;
4238         struct Scsi_Host  *shost = NULL;
4239         int error = 0;
4240         int i;
4241         uint64_t wwn;
4242         bool use_no_reset_hba = false;
4243         int rc;
4244
4245         if (lpfc_no_hba_reset_cnt) {
4246                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4247                     dev == &phba->pcidev->dev) {
4248                         /* Reset the port first */
4249                         lpfc_sli_brdrestart(phba);
4250                         rc = lpfc_sli_chipset_init(phba);
4251                         if (rc)
4252                                 return NULL;
4253                 }
4254                 wwn = lpfc_get_wwpn(phba);
4255         }
4256
4257         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4258                 if (wwn == lpfc_no_hba_reset[i]) {
4259                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4260                                         "6020 Setting use_no_reset port=%llx\n",
4261                                         wwn);
4262                         use_no_reset_hba = true;
4263                         break;
4264                 }
4265         }
4266
4267         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4268                 if (dev != &phba->pcidev->dev) {
4269                         shost = scsi_host_alloc(&lpfc_vport_template,
4270                                                 sizeof(struct lpfc_vport));
4271                 } else {
4272                         if (!use_no_reset_hba)
4273                                 shost = scsi_host_alloc(&lpfc_template,
4274                                                 sizeof(struct lpfc_vport));
4275                         else
4276                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4277                                                 sizeof(struct lpfc_vport));
4278                 }
4279         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4280                 shost = scsi_host_alloc(&lpfc_template_nvme,
4281                                         sizeof(struct lpfc_vport));
4282         }
4283         if (!shost)
4284                 goto out;
4285
4286         vport = (struct lpfc_vport *) shost->hostdata;
4287         vport->phba = phba;
4288         vport->load_flag |= FC_LOADING;
4289         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4290         vport->fc_rscn_flush = 0;
4291         lpfc_get_vport_cfgparam(vport);
4292
4293         /* Adjust value in vport */
4294         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4295
4296         shost->unique_id = instance;
4297         shost->max_id = LPFC_MAX_TARGET;
4298         shost->max_lun = vport->cfg_max_luns;
4299         shost->this_id = -1;
4300         shost->max_cmd_len = 16;
4301
4302         if (phba->sli_rev == LPFC_SLI_REV4) {
4303                 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ)
4304                         shost->nr_hw_queues = phba->cfg_hdw_queue;
4305                 else
4306                         shost->nr_hw_queues = phba->sli4_hba.num_present_cpu;
4307
4308                 shost->dma_boundary =
4309                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4310                 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4311         } else
4312                 /* SLI-3 has a limited number of hardware queues (3),
4313                  * thus there is only one for FCP processing.
4314                  */
4315                 shost->nr_hw_queues = 1;
4316
4317         /*
4318          * Set initial can_queue value since 0 is no longer supported and
4319          * scsi_add_host will fail. This will be adjusted later based on the
4320          * max xri value determined in hba setup.
4321          */
4322         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4323         if (dev != &phba->pcidev->dev) {
4324                 shost->transportt = lpfc_vport_transport_template;
4325                 vport->port_type = LPFC_NPIV_PORT;
4326         } else {
4327                 shost->transportt = lpfc_transport_template;
4328                 vport->port_type = LPFC_PHYSICAL_PORT;
4329         }
4330
4331         /* Initialize all internally managed lists. */
4332         INIT_LIST_HEAD(&vport->fc_nodes);
4333         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4334         spin_lock_init(&vport->work_port_lock);
4335
4336         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4337
4338         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4339
4340         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4341
4342         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4343         if (error)
4344                 goto out_put_shost;
4345
4346         spin_lock_irq(&phba->port_list_lock);
4347         list_add_tail(&vport->listentry, &phba->port_list);
4348         spin_unlock_irq(&phba->port_list_lock);
4349         return vport;
4350
4351 out_put_shost:
4352         scsi_host_put(shost);
4353 out:
4354         return NULL;
4355 }
4356
4357 /**
4358  * destroy_port -  destroy an FC port
4359  * @vport: pointer to an lpfc virtual N_Port data structure.
4360  *
4361  * This routine destroys a FC port from the upper layer protocol. All the
4362  * resources associated with the port are released.
4363  **/
4364 void
4365 destroy_port(struct lpfc_vport *vport)
4366 {
4367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4368         struct lpfc_hba  *phba = vport->phba;
4369
4370         lpfc_debugfs_terminate(vport);
4371         fc_remove_host(shost);
4372         scsi_remove_host(shost);
4373
4374         spin_lock_irq(&phba->port_list_lock);
4375         list_del_init(&vport->listentry);
4376         spin_unlock_irq(&phba->port_list_lock);
4377
4378         lpfc_cleanup(vport);
4379         return;
4380 }
4381
4382 /**
4383  * lpfc_get_instance - Get a unique integer ID
4384  *
4385  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4386  * uses the kernel idr facility to perform the task.
4387  *
4388  * Return codes:
4389  *   instance - a unique integer ID allocated as the new instance.
4390  *   -1 - lpfc get instance failed.
4391  **/
4392 int
4393 lpfc_get_instance(void)
4394 {
4395         int ret;
4396
4397         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4398         return ret < 0 ? -1 : ret;
4399 }
4400
4401 /**
4402  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4403  * @shost: pointer to SCSI host data structure.
4404  * @time: elapsed time of the scan in jiffies.
4405  *
4406  * This routine is called by the SCSI layer with a SCSI host to determine
4407  * whether the scan host is finished.
4408  *
4409  * Note: there is no scan_start function as adapter initialization will have
4410  * asynchronously kicked off the link initialization.
4411  *
4412  * Return codes
4413  *   0 - SCSI host scan is not over yet.
4414  *   1 - SCSI host scan is over.
4415  **/
4416 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4417 {
4418         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4419         struct lpfc_hba   *phba = vport->phba;
4420         int stat = 0;
4421
4422         spin_lock_irq(shost->host_lock);
4423
4424         if (vport->load_flag & FC_UNLOADING) {
4425                 stat = 1;
4426                 goto finished;
4427         }
4428         if (time >= msecs_to_jiffies(30 * 1000)) {
4429                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4430                                 "0461 Scanning longer than 30 "
4431                                 "seconds.  Continuing initialization\n");
4432                 stat = 1;
4433                 goto finished;
4434         }
4435         if (time >= msecs_to_jiffies(15 * 1000) &&
4436             phba->link_state <= LPFC_LINK_DOWN) {
4437                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4438                                 "0465 Link down longer than 15 "
4439                                 "seconds.  Continuing initialization\n");
4440                 stat = 1;
4441                 goto finished;
4442         }
4443
4444         if (vport->port_state != LPFC_VPORT_READY)
4445                 goto finished;
4446         if (vport->num_disc_nodes || vport->fc_prli_sent)
4447                 goto finished;
4448         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4449                 goto finished;
4450         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4451                 goto finished;
4452
4453         stat = 1;
4454
4455 finished:
4456         spin_unlock_irq(shost->host_lock);
4457         return stat;
4458 }
4459
4460 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4461 {
4462         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4463         struct lpfc_hba   *phba = vport->phba;
4464
4465         fc_host_supported_speeds(shost) = 0;
4466         if (phba->lmt & LMT_128Gb)
4467                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4468         if (phba->lmt & LMT_64Gb)
4469                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4470         if (phba->lmt & LMT_32Gb)
4471                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4472         if (phba->lmt & LMT_16Gb)
4473                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4474         if (phba->lmt & LMT_10Gb)
4475                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4476         if (phba->lmt & LMT_8Gb)
4477                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4478         if (phba->lmt & LMT_4Gb)
4479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4480         if (phba->lmt & LMT_2Gb)
4481                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4482         if (phba->lmt & LMT_1Gb)
4483                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4484 }
4485
4486 /**
4487  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4488  * @shost: pointer to SCSI host data structure.
4489  *
4490  * This routine initializes a given SCSI host attributes on a FC port. The
4491  * SCSI host can be either on top of a physical port or a virtual port.
4492  **/
4493 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4494 {
4495         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4496         struct lpfc_hba   *phba = vport->phba;
4497         /*
4498          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4499          */
4500
4501         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4502         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4503         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4504
4505         memset(fc_host_supported_fc4s(shost), 0,
4506                sizeof(fc_host_supported_fc4s(shost)));
4507         fc_host_supported_fc4s(shost)[2] = 1;
4508         fc_host_supported_fc4s(shost)[7] = 1;
4509
4510         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4511                                  sizeof fc_host_symbolic_name(shost));
4512
4513         lpfc_host_supported_speeds_set(shost);
4514
4515         fc_host_maxframe_size(shost) =
4516                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4517                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4518
4519         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4520
4521         /* This value is also unchanging */
4522         memset(fc_host_active_fc4s(shost), 0,
4523                sizeof(fc_host_active_fc4s(shost)));
4524         fc_host_active_fc4s(shost)[2] = 1;
4525         fc_host_active_fc4s(shost)[7] = 1;
4526
4527         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4528         spin_lock_irq(shost->host_lock);
4529         vport->load_flag &= ~FC_LOADING;
4530         spin_unlock_irq(shost->host_lock);
4531 }
4532
4533 /**
4534  * lpfc_stop_port_s3 - Stop SLI3 device port
4535  * @phba: pointer to lpfc hba data structure.
4536  *
4537  * This routine is invoked to stop an SLI3 device port, it stops the device
4538  * from generating interrupts and stops the device driver's timers for the
4539  * device.
4540  **/
4541 static void
4542 lpfc_stop_port_s3(struct lpfc_hba *phba)
4543 {
4544         /* Clear all interrupt enable conditions */
4545         writel(0, phba->HCregaddr);
4546         readl(phba->HCregaddr); /* flush */
4547         /* Clear all pending interrupts */
4548         writel(0xffffffff, phba->HAregaddr);
4549         readl(phba->HAregaddr); /* flush */
4550
4551         /* Reset some HBA SLI setup states */
4552         lpfc_stop_hba_timers(phba);
4553         phba->pport->work_port_events = 0;
4554 }
4555
4556 /**
4557  * lpfc_stop_port_s4 - Stop SLI4 device port
4558  * @phba: pointer to lpfc hba data structure.
4559  *
4560  * This routine is invoked to stop an SLI4 device port, it stops the device
4561  * from generating interrupts and stops the device driver's timers for the
4562  * device.
4563  **/
4564 static void
4565 lpfc_stop_port_s4(struct lpfc_hba *phba)
4566 {
4567         /* Reset some HBA SLI4 setup states */
4568         lpfc_stop_hba_timers(phba);
4569         if (phba->pport)
4570                 phba->pport->work_port_events = 0;
4571         phba->sli4_hba.intr_enable = 0;
4572 }
4573
4574 /**
4575  * lpfc_stop_port - Wrapper function for stopping hba port
4576  * @phba: Pointer to HBA context object.
4577  *
4578  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4579  * the API jump table function pointer from the lpfc_hba struct.
4580  **/
4581 void
4582 lpfc_stop_port(struct lpfc_hba *phba)
4583 {
4584         phba->lpfc_stop_port(phba);
4585
4586         if (phba->wq)
4587                 flush_workqueue(phba->wq);
4588 }
4589
4590 /**
4591  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4592  * @phba: Pointer to hba for which this call is being executed.
4593  *
4594  * This routine starts the timer waiting for the FCF rediscovery to complete.
4595  **/
4596 void
4597 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4598 {
4599         unsigned long fcf_redisc_wait_tmo =
4600                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4601         /* Start fcf rediscovery wait period timer */
4602         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4603         spin_lock_irq(&phba->hbalock);
4604         /* Allow action to new fcf asynchronous event */
4605         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4606         /* Mark the FCF rediscovery pending state */
4607         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4608         spin_unlock_irq(&phba->hbalock);
4609 }
4610
4611 /**
4612  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4613  * @ptr: Map to lpfc_hba data structure pointer.
4614  *
4615  * This routine is invoked when waiting for FCF table rediscover has been
4616  * timed out. If new FCF record(s) has (have) been discovered during the
4617  * wait period, a new FCF event shall be added to the FCOE async event
4618  * list, and then worker thread shall be waked up for processing from the
4619  * worker thread context.
4620  **/
4621 static void
4622 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4623 {
4624         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4625
4626         /* Don't send FCF rediscovery event if timer cancelled */
4627         spin_lock_irq(&phba->hbalock);
4628         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4629                 spin_unlock_irq(&phba->hbalock);
4630                 return;
4631         }
4632         /* Clear FCF rediscovery timer pending flag */
4633         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4634         /* FCF rediscovery event to worker thread */
4635         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4636         spin_unlock_irq(&phba->hbalock);
4637         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4638                         "2776 FCF rediscover quiescent timer expired\n");
4639         /* wake up worker thread */
4640         lpfc_worker_wake_up(phba);
4641 }
4642
4643 /**
4644  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4645  * @phba: pointer to lpfc hba data structure.
4646  * @acqe_link: pointer to the async link completion queue entry.
4647  *
4648  * This routine is to parse the SLI4 link-attention link fault code.
4649  **/
4650 static void
4651 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4652                            struct lpfc_acqe_link *acqe_link)
4653 {
4654         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4655         case LPFC_ASYNC_LINK_FAULT_NONE:
4656         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4657         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4658         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4659                 break;
4660         default:
4661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4662                                 "0398 Unknown link fault code: x%x\n",
4663                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4664                 break;
4665         }
4666 }
4667
4668 /**
4669  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4670  * @phba: pointer to lpfc hba data structure.
4671  * @acqe_link: pointer to the async link completion queue entry.
4672  *
4673  * This routine is to parse the SLI4 link attention type and translate it
4674  * into the base driver's link attention type coding.
4675  *
4676  * Return: Link attention type in terms of base driver's coding.
4677  **/
4678 static uint8_t
4679 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4680                           struct lpfc_acqe_link *acqe_link)
4681 {
4682         uint8_t att_type;
4683
4684         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4685         case LPFC_ASYNC_LINK_STATUS_DOWN:
4686         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4687                 att_type = LPFC_ATT_LINK_DOWN;
4688                 break;
4689         case LPFC_ASYNC_LINK_STATUS_UP:
4690                 /* Ignore physical link up events - wait for logical link up */
4691                 att_type = LPFC_ATT_RESERVED;
4692                 break;
4693         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4694                 att_type = LPFC_ATT_LINK_UP;
4695                 break;
4696         default:
4697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4698                                 "0399 Invalid link attention type: x%x\n",
4699                                 bf_get(lpfc_acqe_link_status, acqe_link));
4700                 att_type = LPFC_ATT_RESERVED;
4701                 break;
4702         }
4703         return att_type;
4704 }
4705
4706 /**
4707  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4708  * @phba: pointer to lpfc hba data structure.
4709  *
4710  * This routine is to get an SLI3 FC port's link speed in Mbps.
4711  *
4712  * Return: link speed in terms of Mbps.
4713  **/
4714 uint32_t
4715 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4716 {
4717         uint32_t link_speed;
4718
4719         if (!lpfc_is_link_up(phba))
4720                 return 0;
4721
4722         if (phba->sli_rev <= LPFC_SLI_REV3) {
4723                 switch (phba->fc_linkspeed) {
4724                 case LPFC_LINK_SPEED_1GHZ:
4725                         link_speed = 1000;
4726                         break;
4727                 case LPFC_LINK_SPEED_2GHZ:
4728                         link_speed = 2000;
4729                         break;
4730                 case LPFC_LINK_SPEED_4GHZ:
4731                         link_speed = 4000;
4732                         break;
4733                 case LPFC_LINK_SPEED_8GHZ:
4734                         link_speed = 8000;
4735                         break;
4736                 case LPFC_LINK_SPEED_10GHZ:
4737                         link_speed = 10000;
4738                         break;
4739                 case LPFC_LINK_SPEED_16GHZ:
4740                         link_speed = 16000;
4741                         break;
4742                 default:
4743                         link_speed = 0;
4744                 }
4745         } else {
4746                 if (phba->sli4_hba.link_state.logical_speed)
4747                         link_speed =
4748                               phba->sli4_hba.link_state.logical_speed;
4749                 else
4750                         link_speed = phba->sli4_hba.link_state.speed;
4751         }
4752         return link_speed;
4753 }
4754
4755 /**
4756  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4757  * @phba: pointer to lpfc hba data structure.
4758  * @evt_code: asynchronous event code.
4759  * @speed_code: asynchronous event link speed code.
4760  *
4761  * This routine is to parse the giving SLI4 async event link speed code into
4762  * value of Mbps for the link speed.
4763  *
4764  * Return: link speed in terms of Mbps.
4765  **/
4766 static uint32_t
4767 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4768                            uint8_t speed_code)
4769 {
4770         uint32_t port_speed;
4771
4772         switch (evt_code) {
4773         case LPFC_TRAILER_CODE_LINK:
4774                 switch (speed_code) {
4775                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4776                         port_speed = 0;
4777                         break;
4778                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4779                         port_speed = 10;
4780                         break;
4781                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4782                         port_speed = 100;
4783                         break;
4784                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4785                         port_speed = 1000;
4786                         break;
4787                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4788                         port_speed = 10000;
4789                         break;
4790                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4791                         port_speed = 20000;
4792                         break;
4793                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4794                         port_speed = 25000;
4795                         break;
4796                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4797                         port_speed = 40000;
4798                         break;
4799                 default:
4800                         port_speed = 0;
4801                 }
4802                 break;
4803         case LPFC_TRAILER_CODE_FC:
4804                 switch (speed_code) {
4805                 case LPFC_FC_LA_SPEED_UNKNOWN:
4806                         port_speed = 0;
4807                         break;
4808                 case LPFC_FC_LA_SPEED_1G:
4809                         port_speed = 1000;
4810                         break;
4811                 case LPFC_FC_LA_SPEED_2G:
4812                         port_speed = 2000;
4813                         break;
4814                 case LPFC_FC_LA_SPEED_4G:
4815                         port_speed = 4000;
4816                         break;
4817                 case LPFC_FC_LA_SPEED_8G:
4818                         port_speed = 8000;
4819                         break;
4820                 case LPFC_FC_LA_SPEED_10G:
4821                         port_speed = 10000;
4822                         break;
4823                 case LPFC_FC_LA_SPEED_16G:
4824                         port_speed = 16000;
4825                         break;
4826                 case LPFC_FC_LA_SPEED_32G:
4827                         port_speed = 32000;
4828                         break;
4829                 case LPFC_FC_LA_SPEED_64G:
4830                         port_speed = 64000;
4831                         break;
4832                 case LPFC_FC_LA_SPEED_128G:
4833                         port_speed = 128000;
4834                         break;
4835                 default:
4836                         port_speed = 0;
4837                 }
4838                 break;
4839         default:
4840                 port_speed = 0;
4841         }
4842         return port_speed;
4843 }
4844
4845 /**
4846  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4847  * @phba: pointer to lpfc hba data structure.
4848  * @acqe_link: pointer to the async link completion queue entry.
4849  *
4850  * This routine is to handle the SLI4 asynchronous FCoE link event.
4851  **/
4852 static void
4853 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4854                          struct lpfc_acqe_link *acqe_link)
4855 {
4856         struct lpfc_dmabuf *mp;
4857         LPFC_MBOXQ_t *pmb;
4858         MAILBOX_t *mb;
4859         struct lpfc_mbx_read_top *la;
4860         uint8_t att_type;
4861         int rc;
4862
4863         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4864         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4865                 return;
4866         phba->fcoe_eventtag = acqe_link->event_tag;
4867         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4868         if (!pmb) {
4869                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4870                                 "0395 The mboxq allocation failed\n");
4871                 return;
4872         }
4873         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4874         if (!mp) {
4875                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4876                                 "0396 The lpfc_dmabuf allocation failed\n");
4877                 goto out_free_pmb;
4878         }
4879         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4880         if (!mp->virt) {
4881                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4882                                 "0397 The mbuf allocation failed\n");
4883                 goto out_free_dmabuf;
4884         }
4885
4886         /* Cleanup any outstanding ELS commands */
4887         lpfc_els_flush_all_cmd(phba);
4888
4889         /* Block ELS IOCBs until we have done process link event */
4890         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4891
4892         /* Update link event statistics */
4893         phba->sli.slistat.link_event++;
4894
4895         /* Create lpfc_handle_latt mailbox command from link ACQE */
4896         lpfc_read_topology(phba, pmb, mp);
4897         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4898         pmb->vport = phba->pport;
4899
4900         /* Keep the link status for extra SLI4 state machine reference */
4901         phba->sli4_hba.link_state.speed =
4902                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4903                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4904         phba->sli4_hba.link_state.duplex =
4905                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4906         phba->sli4_hba.link_state.status =
4907                                 bf_get(lpfc_acqe_link_status, acqe_link);
4908         phba->sli4_hba.link_state.type =
4909                                 bf_get(lpfc_acqe_link_type, acqe_link);
4910         phba->sli4_hba.link_state.number =
4911                                 bf_get(lpfc_acqe_link_number, acqe_link);
4912         phba->sli4_hba.link_state.fault =
4913                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4914         phba->sli4_hba.link_state.logical_speed =
4915                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4916
4917         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4918                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4919                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4920                         "Logical speed:%dMbps Fault:%d\n",
4921                         phba->sli4_hba.link_state.speed,
4922                         phba->sli4_hba.link_state.topology,
4923                         phba->sli4_hba.link_state.status,
4924                         phba->sli4_hba.link_state.type,
4925                         phba->sli4_hba.link_state.number,
4926                         phba->sli4_hba.link_state.logical_speed,
4927                         phba->sli4_hba.link_state.fault);
4928         /*
4929          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4930          * topology info. Note: Optional for non FC-AL ports.
4931          */
4932         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4933                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4934                 if (rc == MBX_NOT_FINISHED)
4935                         goto out_free_dmabuf;
4936                 return;
4937         }
4938         /*
4939          * For FCoE Mode: fill in all the topology information we need and call
4940          * the READ_TOPOLOGY completion routine to continue without actually
4941          * sending the READ_TOPOLOGY mailbox command to the port.
4942          */
4943         /* Initialize completion status */
4944         mb = &pmb->u.mb;
4945         mb->mbxStatus = MBX_SUCCESS;
4946
4947         /* Parse port fault information field */
4948         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4949
4950         /* Parse and translate link attention fields */
4951         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4952         la->eventTag = acqe_link->event_tag;
4953         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4954         bf_set(lpfc_mbx_read_top_link_spd, la,
4955                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4956
4957         /* Fake the the following irrelvant fields */
4958         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4959         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4960         bf_set(lpfc_mbx_read_top_il, la, 0);
4961         bf_set(lpfc_mbx_read_top_pb, la, 0);
4962         bf_set(lpfc_mbx_read_top_fa, la, 0);
4963         bf_set(lpfc_mbx_read_top_mm, la, 0);
4964
4965         /* Invoke the lpfc_handle_latt mailbox command callback function */
4966         lpfc_mbx_cmpl_read_topology(phba, pmb);
4967
4968         return;
4969
4970 out_free_dmabuf:
4971         kfree(mp);
4972 out_free_pmb:
4973         mempool_free(pmb, phba->mbox_mem_pool);
4974 }
4975
4976 /**
4977  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4978  * topology.
4979  * @phba: pointer to lpfc hba data structure.
4980  * @evt_code: asynchronous event code.
4981  * @speed_code: asynchronous event link speed code.
4982  *
4983  * This routine is to parse the giving SLI4 async event link speed code into
4984  * value of Read topology link speed.
4985  *
4986  * Return: link speed in terms of Read topology.
4987  **/
4988 static uint8_t
4989 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4990 {
4991         uint8_t port_speed;
4992
4993         switch (speed_code) {
4994         case LPFC_FC_LA_SPEED_1G:
4995                 port_speed = LPFC_LINK_SPEED_1GHZ;
4996                 break;
4997         case LPFC_FC_LA_SPEED_2G:
4998                 port_speed = LPFC_LINK_SPEED_2GHZ;
4999                 break;
5000         case LPFC_FC_LA_SPEED_4G:
5001                 port_speed = LPFC_LINK_SPEED_4GHZ;
5002                 break;
5003         case LPFC_FC_LA_SPEED_8G:
5004                 port_speed = LPFC_LINK_SPEED_8GHZ;
5005                 break;
5006         case LPFC_FC_LA_SPEED_16G:
5007                 port_speed = LPFC_LINK_SPEED_16GHZ;
5008                 break;
5009         case LPFC_FC_LA_SPEED_32G:
5010                 port_speed = LPFC_LINK_SPEED_32GHZ;
5011                 break;
5012         case LPFC_FC_LA_SPEED_64G:
5013                 port_speed = LPFC_LINK_SPEED_64GHZ;
5014                 break;
5015         case LPFC_FC_LA_SPEED_128G:
5016                 port_speed = LPFC_LINK_SPEED_128GHZ;
5017                 break;
5018         case LPFC_FC_LA_SPEED_256G:
5019                 port_speed = LPFC_LINK_SPEED_256GHZ;
5020                 break;
5021         default:
5022                 port_speed = 0;
5023                 break;
5024         }
5025
5026         return port_speed;
5027 }
5028
5029 #define trunk_link_status(__idx)\
5030         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5031                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5032                 "Link up" : "Link down") : "NA"
5033 /* Did port __idx reported an error */
5034 #define trunk_port_fault(__idx)\
5035         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5036                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5037
5038 static void
5039 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5040                               struct lpfc_acqe_fc_la *acqe_fc)
5041 {
5042         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5043         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5044
5045         phba->sli4_hba.link_state.speed =
5046                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5047                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5048
5049         phba->sli4_hba.link_state.logical_speed =
5050                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
5051         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5052         phba->fc_linkspeed =
5053                  lpfc_async_link_speed_to_read_top(
5054                                 phba,
5055                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5056
5057         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5058                 phba->trunk_link.link0.state =
5059                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5060                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5061                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5062         }
5063         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5064                 phba->trunk_link.link1.state =
5065                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5066                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5067                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5068         }
5069         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5070                 phba->trunk_link.link2.state =
5071                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5072                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5073                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5074         }
5075         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5076                 phba->trunk_link.link3.state =
5077                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5078                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5079                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5080         }
5081
5082         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5083                         "2910 Async FC Trunking Event - Speed:%d\n"
5084                         "\tLogical speed:%d "
5085                         "port0: %s port1: %s port2: %s port3: %s\n",
5086                         phba->sli4_hba.link_state.speed,
5087                         phba->sli4_hba.link_state.logical_speed,
5088                         trunk_link_status(0), trunk_link_status(1),
5089                         trunk_link_status(2), trunk_link_status(3));
5090
5091         if (port_fault)
5092                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5093                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5094                                 /*
5095                                  * SLI-4: We have only 0xA error codes
5096                                  * defined as of now. print an appropriate
5097                                  * message in case driver needs to be updated.
5098                                  */
5099                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5100                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5101                                 trunk_port_fault(0), trunk_port_fault(1),
5102                                 trunk_port_fault(2), trunk_port_fault(3));
5103 }
5104
5105
5106 /**
5107  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5108  * @phba: pointer to lpfc hba data structure.
5109  * @acqe_fc: pointer to the async fc completion queue entry.
5110  *
5111  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5112  * that the event was received and then issue a read_topology mailbox command so
5113  * that the rest of the driver will treat it the same as SLI3.
5114  **/
5115 static void
5116 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5117 {
5118         struct lpfc_dmabuf *mp;
5119         LPFC_MBOXQ_t *pmb;
5120         MAILBOX_t *mb;
5121         struct lpfc_mbx_read_top *la;
5122         int rc;
5123
5124         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5125             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5126                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5127                                 "2895 Non FC link Event detected.(%d)\n",
5128                                 bf_get(lpfc_trailer_type, acqe_fc));
5129                 return;
5130         }
5131
5132         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5133             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5134                 lpfc_update_trunk_link_status(phba, acqe_fc);
5135                 return;
5136         }
5137
5138         /* Keep the link status for extra SLI4 state machine reference */
5139         phba->sli4_hba.link_state.speed =
5140                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5141                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5142         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5143         phba->sli4_hba.link_state.topology =
5144                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5145         phba->sli4_hba.link_state.status =
5146                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5147         phba->sli4_hba.link_state.type =
5148                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5149         phba->sli4_hba.link_state.number =
5150                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5151         phba->sli4_hba.link_state.fault =
5152                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5153         phba->sli4_hba.link_state.logical_speed =
5154                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5155         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5156                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5157                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5158                         "%dMbps Fault:%d\n",
5159                         phba->sli4_hba.link_state.speed,
5160                         phba->sli4_hba.link_state.topology,
5161                         phba->sli4_hba.link_state.status,
5162                         phba->sli4_hba.link_state.type,
5163                         phba->sli4_hba.link_state.number,
5164                         phba->sli4_hba.link_state.logical_speed,
5165                         phba->sli4_hba.link_state.fault);
5166         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5167         if (!pmb) {
5168                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5169                                 "2897 The mboxq allocation failed\n");
5170                 return;
5171         }
5172         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5173         if (!mp) {
5174                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5175                                 "2898 The lpfc_dmabuf allocation failed\n");
5176                 goto out_free_pmb;
5177         }
5178         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5179         if (!mp->virt) {
5180                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5181                                 "2899 The mbuf allocation failed\n");
5182                 goto out_free_dmabuf;
5183         }
5184
5185         /* Cleanup any outstanding ELS commands */
5186         lpfc_els_flush_all_cmd(phba);
5187
5188         /* Block ELS IOCBs until we have done process link event */
5189         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5190
5191         /* Update link event statistics */
5192         phba->sli.slistat.link_event++;
5193
5194         /* Create lpfc_handle_latt mailbox command from link ACQE */
5195         lpfc_read_topology(phba, pmb, mp);
5196         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5197         pmb->vport = phba->pport;
5198
5199         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5200                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5201
5202                 switch (phba->sli4_hba.link_state.status) {
5203                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5204                         phba->link_flag |= LS_MDS_LINK_DOWN;
5205                         break;
5206                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5207                         phba->link_flag |= LS_MDS_LOOPBACK;
5208                         break;
5209                 default:
5210                         break;
5211                 }
5212
5213                 /* Initialize completion status */
5214                 mb = &pmb->u.mb;
5215                 mb->mbxStatus = MBX_SUCCESS;
5216
5217                 /* Parse port fault information field */
5218                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5219
5220                 /* Parse and translate link attention fields */
5221                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5222                 la->eventTag = acqe_fc->event_tag;
5223
5224                 if (phba->sli4_hba.link_state.status ==
5225                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5226                         bf_set(lpfc_mbx_read_top_att_type, la,
5227                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5228                 } else {
5229                         bf_set(lpfc_mbx_read_top_att_type, la,
5230                                LPFC_FC_LA_TYPE_LINK_DOWN);
5231                 }
5232                 /* Invoke the mailbox command callback function */
5233                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5234
5235                 return;
5236         }
5237
5238         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5239         if (rc == MBX_NOT_FINISHED)
5240                 goto out_free_dmabuf;
5241         return;
5242
5243 out_free_dmabuf:
5244         kfree(mp);
5245 out_free_pmb:
5246         mempool_free(pmb, phba->mbox_mem_pool);
5247 }
5248
5249 /**
5250  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5251  * @phba: pointer to lpfc hba data structure.
5252  * @acqe_fc: pointer to the async SLI completion queue entry.
5253  *
5254  * This routine is to handle the SLI4 asynchronous SLI events.
5255  **/
5256 static void
5257 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5258 {
5259         char port_name;
5260         char message[128];
5261         uint8_t status;
5262         uint8_t evt_type;
5263         uint8_t operational = 0;
5264         struct temp_event temp_event_data;
5265         struct lpfc_acqe_misconfigured_event *misconfigured;
5266         struct Scsi_Host  *shost;
5267         struct lpfc_vport **vports;
5268         int rc, i;
5269
5270         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5271
5272         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5273                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5274                         "x%08x SLI Event Type:%d\n",
5275                         acqe_sli->event_data1, acqe_sli->event_data2,
5276                         evt_type);
5277
5278         port_name = phba->Port[0];
5279         if (port_name == 0x00)
5280                 port_name = '?'; /* get port name is empty */
5281
5282         switch (evt_type) {
5283         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5284                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5285                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5286                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5287
5288                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5289                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5290                                 acqe_sli->event_data1, port_name);
5291
5292                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5293                 shost = lpfc_shost_from_vport(phba->pport);
5294                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5295                                           sizeof(temp_event_data),
5296                                           (char *)&temp_event_data,
5297                                           SCSI_NL_VID_TYPE_PCI
5298                                           | PCI_VENDOR_ID_EMULEX);
5299                 break;
5300         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5301                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5302                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5303                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5304
5305                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5306                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5307                                 acqe_sli->event_data1, port_name);
5308
5309                 shost = lpfc_shost_from_vport(phba->pport);
5310                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5311                                           sizeof(temp_event_data),
5312                                           (char *)&temp_event_data,
5313                                           SCSI_NL_VID_TYPE_PCI
5314                                           | PCI_VENDOR_ID_EMULEX);
5315                 break;
5316         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5317                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5318                                         &acqe_sli->event_data1;
5319
5320                 /* fetch the status for this port */
5321                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5322                 case LPFC_LINK_NUMBER_0:
5323                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5324                                         &misconfigured->theEvent);
5325                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5326                                         &misconfigured->theEvent);
5327                         break;
5328                 case LPFC_LINK_NUMBER_1:
5329                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5330                                         &misconfigured->theEvent);
5331                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5332                                         &misconfigured->theEvent);
5333                         break;
5334                 case LPFC_LINK_NUMBER_2:
5335                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5336                                         &misconfigured->theEvent);
5337                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5338                                         &misconfigured->theEvent);
5339                         break;
5340                 case LPFC_LINK_NUMBER_3:
5341                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5342                                         &misconfigured->theEvent);
5343                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5344                                         &misconfigured->theEvent);
5345                         break;
5346                 default:
5347                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5348                                         "3296 "
5349                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5350                                         "event: Invalid link %d",
5351                                         phba->sli4_hba.lnk_info.lnk_no);
5352                         return;
5353                 }
5354
5355                 /* Skip if optic state unchanged */
5356                 if (phba->sli4_hba.lnk_info.optic_state == status)
5357                         return;
5358
5359                 switch (status) {
5360                 case LPFC_SLI_EVENT_STATUS_VALID:
5361                         sprintf(message, "Physical Link is functional");
5362                         break;
5363                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5364                         sprintf(message, "Optics faulted/incorrectly "
5365                                 "installed/not installed - Reseat optics, "
5366                                 "if issue not resolved, replace.");
5367                         break;
5368                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5369                         sprintf(message,
5370                                 "Optics of two types installed - Remove one "
5371                                 "optic or install matching pair of optics.");
5372                         break;
5373                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5374                         sprintf(message, "Incompatible optics - Replace with "
5375                                 "compatible optics for card to function.");
5376                         break;
5377                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5378                         sprintf(message, "Unqualified optics - Replace with "
5379                                 "Avago optics for Warranty and Technical "
5380                                 "Support - Link is%s operational",
5381                                 (operational) ? " not" : "");
5382                         break;
5383                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5384                         sprintf(message, "Uncertified optics - Replace with "
5385                                 "Avago-certified optics to enable link "
5386                                 "operation - Link is%s operational",
5387                                 (operational) ? " not" : "");
5388                         break;
5389                 default:
5390                         /* firmware is reporting a status we don't know about */
5391                         sprintf(message, "Unknown event status x%02x", status);
5392                         break;
5393                 }
5394
5395                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5396                 rc = lpfc_sli4_read_config(phba);
5397                 if (rc) {
5398                         phba->lmt = 0;
5399                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5400                                         "3194 Unable to retrieve supported "
5401                                         "speeds, rc = 0x%x\n", rc);
5402                 }
5403                 vports = lpfc_create_vport_work_array(phba);
5404                 if (vports != NULL) {
5405                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5406                                         i++) {
5407                                 shost = lpfc_shost_from_vport(vports[i]);
5408                                 lpfc_host_supported_speeds_set(shost);
5409                         }
5410                 }
5411                 lpfc_destroy_vport_work_array(phba, vports);
5412
5413                 phba->sli4_hba.lnk_info.optic_state = status;
5414                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5415                                 "3176 Port Name %c %s\n", port_name, message);
5416                 break;
5417         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5418                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5419                                 "3192 Remote DPort Test Initiated - "
5420                                 "Event Data1:x%08x Event Data2: x%08x\n",
5421                                 acqe_sli->event_data1, acqe_sli->event_data2);
5422                 break;
5423         default:
5424                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5425                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5426                                 "x%08x SLI Event Type:%d\n",
5427                                 acqe_sli->event_data1, acqe_sli->event_data2,
5428                                 evt_type);
5429                 break;
5430         }
5431 }
5432
5433 /**
5434  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5435  * @vport: pointer to vport data structure.
5436  *
5437  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5438  * response to a CVL event.
5439  *
5440  * Return the pointer to the ndlp with the vport if successful, otherwise
5441  * return NULL.
5442  **/
5443 static struct lpfc_nodelist *
5444 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5445 {
5446         struct lpfc_nodelist *ndlp;
5447         struct Scsi_Host *shost;
5448         struct lpfc_hba *phba;
5449
5450         if (!vport)
5451                 return NULL;
5452         phba = vport->phba;
5453         if (!phba)
5454                 return NULL;
5455         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5456         if (!ndlp) {
5457                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5458                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5459                 if (!ndlp)
5460                         return 0;
5461                 /* Set the node type */
5462                 ndlp->nlp_type |= NLP_FABRIC;
5463                 /* Put ndlp onto node list */
5464                 lpfc_enqueue_node(vport, ndlp);
5465         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5466                 /* re-setup ndlp without removing from node list */
5467                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5468                 if (!ndlp)
5469                         return 0;
5470         }
5471         if ((phba->pport->port_state < LPFC_FLOGI) &&
5472                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5473                 return NULL;
5474         /* If virtual link is not yet instantiated ignore CVL */
5475         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5476                 && (vport->port_state != LPFC_VPORT_FAILED))
5477                 return NULL;
5478         shost = lpfc_shost_from_vport(vport);
5479         if (!shost)
5480                 return NULL;
5481         lpfc_linkdown_port(vport);
5482         lpfc_cleanup_pending_mbox(vport);
5483         spin_lock_irq(shost->host_lock);
5484         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5485         spin_unlock_irq(shost->host_lock);
5486
5487         return ndlp;
5488 }
5489
5490 /**
5491  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5492  * @vport: pointer to lpfc hba data structure.
5493  *
5494  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5495  * response to a FCF dead event.
5496  **/
5497 static void
5498 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5499 {
5500         struct lpfc_vport **vports;
5501         int i;
5502
5503         vports = lpfc_create_vport_work_array(phba);
5504         if (vports)
5505                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5506                         lpfc_sli4_perform_vport_cvl(vports[i]);
5507         lpfc_destroy_vport_work_array(phba, vports);
5508 }
5509
5510 /**
5511  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5512  * @phba: pointer to lpfc hba data structure.
5513  * @acqe_link: pointer to the async fcoe completion queue entry.
5514  *
5515  * This routine is to handle the SLI4 asynchronous fcoe event.
5516  **/
5517 static void
5518 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5519                         struct lpfc_acqe_fip *acqe_fip)
5520 {
5521         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5522         int rc;
5523         struct lpfc_vport *vport;
5524         struct lpfc_nodelist *ndlp;
5525         struct Scsi_Host  *shost;
5526         int active_vlink_present;
5527         struct lpfc_vport **vports;
5528         int i;
5529
5530         phba->fc_eventTag = acqe_fip->event_tag;
5531         phba->fcoe_eventtag = acqe_fip->event_tag;
5532         switch (event_type) {
5533         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5534         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5535                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5536                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5537                                         LOG_DISCOVERY,
5538                                         "2546 New FCF event, evt_tag:x%x, "
5539                                         "index:x%x\n",
5540                                         acqe_fip->event_tag,
5541                                         acqe_fip->index);
5542                 else
5543                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5544                                         LOG_DISCOVERY,
5545                                         "2788 FCF param modified event, "
5546                                         "evt_tag:x%x, index:x%x\n",
5547                                         acqe_fip->event_tag,
5548                                         acqe_fip->index);
5549                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5550                         /*
5551                          * During period of FCF discovery, read the FCF
5552                          * table record indexed by the event to update
5553                          * FCF roundrobin failover eligible FCF bmask.
5554                          */
5555                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5556                                         LOG_DISCOVERY,
5557                                         "2779 Read FCF (x%x) for updating "
5558                                         "roundrobin FCF failover bmask\n",
5559                                         acqe_fip->index);
5560                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5561                 }
5562
5563                 /* If the FCF discovery is in progress, do nothing. */
5564                 spin_lock_irq(&phba->hbalock);
5565                 if (phba->hba_flag & FCF_TS_INPROG) {
5566                         spin_unlock_irq(&phba->hbalock);
5567                         break;
5568                 }
5569                 /* If fast FCF failover rescan event is pending, do nothing */
5570                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5571                         spin_unlock_irq(&phba->hbalock);
5572                         break;
5573                 }
5574
5575                 /* If the FCF has been in discovered state, do nothing. */
5576                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5577                         spin_unlock_irq(&phba->hbalock);
5578                         break;
5579                 }
5580                 spin_unlock_irq(&phba->hbalock);
5581
5582                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5583                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5584                                 "2770 Start FCF table scan per async FCF "
5585                                 "event, evt_tag:x%x, index:x%x\n",
5586                                 acqe_fip->event_tag, acqe_fip->index);
5587                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5588                                                      LPFC_FCOE_FCF_GET_FIRST);
5589                 if (rc)
5590                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5591                                         "2547 Issue FCF scan read FCF mailbox "
5592                                         "command failed (x%x)\n", rc);
5593                 break;
5594
5595         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5596                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5597                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5598                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5599                         acqe_fip->event_tag);
5600                 break;
5601
5602         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5603                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5604                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5605                         "2549 FCF (x%x) disconnected from network, "
5606                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5607                 /*
5608                  * If we are in the middle of FCF failover process, clear
5609                  * the corresponding FCF bit in the roundrobin bitmap.
5610                  */
5611                 spin_lock_irq(&phba->hbalock);
5612                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5613                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5614                         spin_unlock_irq(&phba->hbalock);
5615                         /* Update FLOGI FCF failover eligible FCF bmask */
5616                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5617                         break;
5618                 }
5619                 spin_unlock_irq(&phba->hbalock);
5620
5621                 /* If the event is not for currently used fcf do nothing */
5622                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5623                         break;
5624
5625                 /*
5626                  * Otherwise, request the port to rediscover the entire FCF
5627                  * table for a fast recovery from case that the current FCF
5628                  * is no longer valid as we are not in the middle of FCF
5629                  * failover process already.
5630                  */
5631                 spin_lock_irq(&phba->hbalock);
5632                 /* Mark the fast failover process in progress */
5633                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5634                 spin_unlock_irq(&phba->hbalock);
5635
5636                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5637                                 "2771 Start FCF fast failover process due to "
5638                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5639                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5640                 rc = lpfc_sli4_redisc_fcf_table(phba);
5641                 if (rc) {
5642                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5643                                         LOG_DISCOVERY,
5644                                         "2772 Issue FCF rediscover mailbox "
5645                                         "command failed, fail through to FCF "
5646                                         "dead event\n");
5647                         spin_lock_irq(&phba->hbalock);
5648                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5649                         spin_unlock_irq(&phba->hbalock);
5650                         /*
5651                          * Last resort will fail over by treating this
5652                          * as a link down to FCF registration.
5653                          */
5654                         lpfc_sli4_fcf_dead_failthrough(phba);
5655                 } else {
5656                         /* Reset FCF roundrobin bmask for new discovery */
5657                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5658                         /*
5659                          * Handling fast FCF failover to a DEAD FCF event is
5660                          * considered equalivant to receiving CVL to all vports.
5661                          */
5662                         lpfc_sli4_perform_all_vport_cvl(phba);
5663                 }
5664                 break;
5665         case LPFC_FIP_EVENT_TYPE_CVL:
5666                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5667                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5668                         "2718 Clear Virtual Link Received for VPI 0x%x"
5669                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5670
5671                 vport = lpfc_find_vport_by_vpid(phba,
5672                                                 acqe_fip->index);
5673                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5674                 if (!ndlp)
5675                         break;
5676                 active_vlink_present = 0;
5677
5678                 vports = lpfc_create_vport_work_array(phba);
5679                 if (vports) {
5680                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5681                                         i++) {
5682                                 if ((!(vports[i]->fc_flag &
5683                                         FC_VPORT_CVL_RCVD)) &&
5684                                         (vports[i]->port_state > LPFC_FDISC)) {
5685                                         active_vlink_present = 1;
5686                                         break;
5687                                 }
5688                         }
5689                         lpfc_destroy_vport_work_array(phba, vports);
5690                 }
5691
5692                 /*
5693                  * Don't re-instantiate if vport is marked for deletion.
5694                  * If we are here first then vport_delete is going to wait
5695                  * for discovery to complete.
5696                  */
5697                 if (!(vport->load_flag & FC_UNLOADING) &&
5698                                         active_vlink_present) {
5699                         /*
5700                          * If there are other active VLinks present,
5701                          * re-instantiate the Vlink using FDISC.
5702                          */
5703                         mod_timer(&ndlp->nlp_delayfunc,
5704                                   jiffies + msecs_to_jiffies(1000));
5705                         shost = lpfc_shost_from_vport(vport);
5706                         spin_lock_irq(shost->host_lock);
5707                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5708                         spin_unlock_irq(shost->host_lock);
5709                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5710                         vport->port_state = LPFC_FDISC;
5711                 } else {
5712                         /*
5713                          * Otherwise, we request port to rediscover
5714                          * the entire FCF table for a fast recovery
5715                          * from possible case that the current FCF
5716                          * is no longer valid if we are not already
5717                          * in the FCF failover process.
5718                          */
5719                         spin_lock_irq(&phba->hbalock);
5720                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5721                                 spin_unlock_irq(&phba->hbalock);
5722                                 break;
5723                         }
5724                         /* Mark the fast failover process in progress */
5725                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5726                         spin_unlock_irq(&phba->hbalock);
5727                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5728                                         LOG_DISCOVERY,
5729                                         "2773 Start FCF failover per CVL, "
5730                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5731                         rc = lpfc_sli4_redisc_fcf_table(phba);
5732                         if (rc) {
5733                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5734                                                 LOG_DISCOVERY,
5735                                                 "2774 Issue FCF rediscover "
5736                                                 "mailbox command failed, "
5737                                                 "through to CVL event\n");
5738                                 spin_lock_irq(&phba->hbalock);
5739                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5740                                 spin_unlock_irq(&phba->hbalock);
5741                                 /*
5742                                  * Last resort will be re-try on the
5743                                  * the current registered FCF entry.
5744                                  */
5745                                 lpfc_retry_pport_discovery(phba);
5746                         } else
5747                                 /*
5748                                  * Reset FCF roundrobin bmask for new
5749                                  * discovery.
5750                                  */
5751                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5752                 }
5753                 break;
5754         default:
5755                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5756                         "0288 Unknown FCoE event type 0x%x event tag "
5757                         "0x%x\n", event_type, acqe_fip->event_tag);
5758                 break;
5759         }
5760 }
5761
5762 /**
5763  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5764  * @phba: pointer to lpfc hba data structure.
5765  * @acqe_link: pointer to the async dcbx completion queue entry.
5766  *
5767  * This routine is to handle the SLI4 asynchronous dcbx event.
5768  **/
5769 static void
5770 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5771                          struct lpfc_acqe_dcbx *acqe_dcbx)
5772 {
5773         phba->fc_eventTag = acqe_dcbx->event_tag;
5774         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5775                         "0290 The SLI4 DCBX asynchronous event is not "
5776                         "handled yet\n");
5777 }
5778
5779 /**
5780  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5781  * @phba: pointer to lpfc hba data structure.
5782  * @acqe_link: pointer to the async grp5 completion queue entry.
5783  *
5784  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5785  * is an asynchronous notified of a logical link speed change.  The Port
5786  * reports the logical link speed in units of 10Mbps.
5787  **/
5788 static void
5789 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5790                          struct lpfc_acqe_grp5 *acqe_grp5)
5791 {
5792         uint16_t prev_ll_spd;
5793
5794         phba->fc_eventTag = acqe_grp5->event_tag;
5795         phba->fcoe_eventtag = acqe_grp5->event_tag;
5796         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5797         phba->sli4_hba.link_state.logical_speed =
5798                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5799         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5800                         "2789 GRP5 Async Event: Updating logical link speed "
5801                         "from %dMbps to %dMbps\n", prev_ll_spd,
5802                         phba->sli4_hba.link_state.logical_speed);
5803 }
5804
5805 /**
5806  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5807  * @phba: pointer to lpfc hba data structure.
5808  *
5809  * This routine is invoked by the worker thread to process all the pending
5810  * SLI4 asynchronous events.
5811  **/
5812 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5813 {
5814         struct lpfc_cq_event *cq_event;
5815
5816         /* First, declare the async event has been handled */
5817         spin_lock_irq(&phba->hbalock);
5818         phba->hba_flag &= ~ASYNC_EVENT;
5819         spin_unlock_irq(&phba->hbalock);
5820         /* Now, handle all the async events */
5821         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5822                 /* Get the first event from the head of the event queue */
5823                 spin_lock_irq(&phba->hbalock);
5824                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5825                                  cq_event, struct lpfc_cq_event, list);
5826                 spin_unlock_irq(&phba->hbalock);
5827                 /* Process the asynchronous event */
5828                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5829                 case LPFC_TRAILER_CODE_LINK:
5830                         lpfc_sli4_async_link_evt(phba,
5831                                                  &cq_event->cqe.acqe_link);
5832                         break;
5833                 case LPFC_TRAILER_CODE_FCOE:
5834                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5835                         break;
5836                 case LPFC_TRAILER_CODE_DCBX:
5837                         lpfc_sli4_async_dcbx_evt(phba,
5838                                                  &cq_event->cqe.acqe_dcbx);
5839                         break;
5840                 case LPFC_TRAILER_CODE_GRP5:
5841                         lpfc_sli4_async_grp5_evt(phba,
5842                                                  &cq_event->cqe.acqe_grp5);
5843                         break;
5844                 case LPFC_TRAILER_CODE_FC:
5845                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5846                         break;
5847                 case LPFC_TRAILER_CODE_SLI:
5848                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5849                         break;
5850                 default:
5851                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5852                                         "1804 Invalid asynchrous event code: "
5853                                         "x%x\n", bf_get(lpfc_trailer_code,
5854                                         &cq_event->cqe.mcqe_cmpl));
5855                         break;
5856                 }
5857                 /* Free the completion event processed to the free pool */
5858                 lpfc_sli4_cq_event_release(phba, cq_event);
5859         }
5860 }
5861
5862 /**
5863  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5864  * @phba: pointer to lpfc hba data structure.
5865  *
5866  * This routine is invoked by the worker thread to process FCF table
5867  * rediscovery pending completion event.
5868  **/
5869 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5870 {
5871         int rc;
5872
5873         spin_lock_irq(&phba->hbalock);
5874         /* Clear FCF rediscovery timeout event */
5875         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5876         /* Clear driver fast failover FCF record flag */
5877         phba->fcf.failover_rec.flag = 0;
5878         /* Set state for FCF fast failover */
5879         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5880         spin_unlock_irq(&phba->hbalock);
5881
5882         /* Scan FCF table from the first entry to re-discover SAN */
5883         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5884                         "2777 Start post-quiescent FCF table scan\n");
5885         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5886         if (rc)
5887                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5888                                 "2747 Issue FCF scan read FCF mailbox "
5889                                 "command failed 0x%x\n", rc);
5890 }
5891
5892 /**
5893  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5894  * @phba: pointer to lpfc hba data structure.
5895  * @dev_grp: The HBA PCI-Device group number.
5896  *
5897  * This routine is invoked to set up the per HBA PCI-Device group function
5898  * API jump table entries.
5899  *
5900  * Return: 0 if success, otherwise -ENODEV
5901  **/
5902 int
5903 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5904 {
5905         int rc;
5906
5907         /* Set up lpfc PCI-device group */
5908         phba->pci_dev_grp = dev_grp;
5909
5910         /* The LPFC_PCI_DEV_OC uses SLI4 */
5911         if (dev_grp == LPFC_PCI_DEV_OC)
5912                 phba->sli_rev = LPFC_SLI_REV4;
5913
5914         /* Set up device INIT API function jump table */
5915         rc = lpfc_init_api_table_setup(phba, dev_grp);
5916         if (rc)
5917                 return -ENODEV;
5918         /* Set up SCSI API function jump table */
5919         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5920         if (rc)
5921                 return -ENODEV;
5922         /* Set up SLI API function jump table */
5923         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5924         if (rc)
5925                 return -ENODEV;
5926         /* Set up MBOX API function jump table */
5927         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5928         if (rc)
5929                 return -ENODEV;
5930
5931         return 0;
5932 }
5933
5934 /**
5935  * lpfc_log_intr_mode - Log the active interrupt mode
5936  * @phba: pointer to lpfc hba data structure.
5937  * @intr_mode: active interrupt mode adopted.
5938  *
5939  * This routine it invoked to log the currently used active interrupt mode
5940  * to the device.
5941  **/
5942 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5943 {
5944         switch (intr_mode) {
5945         case 0:
5946                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5947                                 "0470 Enable INTx interrupt mode.\n");
5948                 break;
5949         case 1:
5950                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5951                                 "0481 Enabled MSI interrupt mode.\n");
5952                 break;
5953         case 2:
5954                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5955                                 "0480 Enabled MSI-X interrupt mode.\n");
5956                 break;
5957         default:
5958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5959                                 "0482 Illegal interrupt mode.\n");
5960                 break;
5961         }
5962         return;
5963 }
5964
5965 /**
5966  * lpfc_enable_pci_dev - Enable a generic PCI device.
5967  * @phba: pointer to lpfc hba data structure.
5968  *
5969  * This routine is invoked to enable the PCI device that is common to all
5970  * PCI devices.
5971  *
5972  * Return codes
5973  *      0 - successful
5974  *      other values - error
5975  **/
5976 static int
5977 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5978 {
5979         struct pci_dev *pdev;
5980
5981         /* Obtain PCI device reference */
5982         if (!phba->pcidev)
5983                 goto out_error;
5984         else
5985                 pdev = phba->pcidev;
5986         /* Enable PCI device */
5987         if (pci_enable_device_mem(pdev))
5988                 goto out_error;
5989         /* Request PCI resource for the device */
5990         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5991                 goto out_disable_device;
5992         /* Set up device as PCI master and save state for EEH */
5993         pci_set_master(pdev);
5994         pci_try_set_mwi(pdev);
5995         pci_save_state(pdev);
5996
5997         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5998         if (pci_is_pcie(pdev))
5999                 pdev->needs_freset = 1;
6000
6001         return 0;
6002
6003 out_disable_device:
6004         pci_disable_device(pdev);
6005 out_error:
6006         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6007                         "1401 Failed to enable pci device\n");
6008         return -ENODEV;
6009 }
6010
6011 /**
6012  * lpfc_disable_pci_dev - Disable a generic PCI device.
6013  * @phba: pointer to lpfc hba data structure.
6014  *
6015  * This routine is invoked to disable the PCI device that is common to all
6016  * PCI devices.
6017  **/
6018 static void
6019 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6020 {
6021         struct pci_dev *pdev;
6022
6023         /* Obtain PCI device reference */
6024         if (!phba->pcidev)
6025                 return;
6026         else
6027                 pdev = phba->pcidev;
6028         /* Release PCI resource and disable PCI device */
6029         pci_release_mem_regions(pdev);
6030         pci_disable_device(pdev);
6031
6032         return;
6033 }
6034
6035 /**
6036  * lpfc_reset_hba - Reset a hba
6037  * @phba: pointer to lpfc hba data structure.
6038  *
6039  * This routine is invoked to reset a hba device. It brings the HBA
6040  * offline, performs a board restart, and then brings the board back
6041  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6042  * on outstanding mailbox commands.
6043  **/
6044 void
6045 lpfc_reset_hba(struct lpfc_hba *phba)
6046 {
6047         /* If resets are disabled then set error state and return. */
6048         if (!phba->cfg_enable_hba_reset) {
6049                 phba->link_state = LPFC_HBA_ERROR;
6050                 return;
6051         }
6052         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6053                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6054         else
6055                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6056         lpfc_offline(phba);
6057         lpfc_sli_brdrestart(phba);
6058         lpfc_online(phba);
6059         lpfc_unblock_mgmt_io(phba);
6060 }
6061
6062 /**
6063  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6064  * @phba: pointer to lpfc hba data structure.
6065  *
6066  * This function enables the PCI SR-IOV virtual functions to a physical
6067  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6068  * enable the number of virtual functions to the physical function. As
6069  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6070  * API call does not considered as an error condition for most of the device.
6071  **/
6072 uint16_t
6073 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6074 {
6075         struct pci_dev *pdev = phba->pcidev;
6076         uint16_t nr_virtfn;
6077         int pos;
6078
6079         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6080         if (pos == 0)
6081                 return 0;
6082
6083         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6084         return nr_virtfn;
6085 }
6086
6087 /**
6088  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6089  * @phba: pointer to lpfc hba data structure.
6090  * @nr_vfn: number of virtual functions to be enabled.
6091  *
6092  * This function enables the PCI SR-IOV virtual functions to a physical
6093  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6094  * enable the number of virtual functions to the physical function. As
6095  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6096  * API call does not considered as an error condition for most of the device.
6097  **/
6098 int
6099 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6100 {
6101         struct pci_dev *pdev = phba->pcidev;
6102         uint16_t max_nr_vfn;
6103         int rc;
6104
6105         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6106         if (nr_vfn > max_nr_vfn) {
6107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6108                                 "3057 Requested vfs (%d) greater than "
6109                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6110                 return -EINVAL;
6111         }
6112
6113         rc = pci_enable_sriov(pdev, nr_vfn);
6114         if (rc) {
6115                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6116                                 "2806 Failed to enable sriov on this device "
6117                                 "with vfn number nr_vf:%d, rc:%d\n",
6118                                 nr_vfn, rc);
6119         } else
6120                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6121                                 "2807 Successful enable sriov on this device "
6122                                 "with vfn number nr_vf:%d\n", nr_vfn);
6123         return rc;
6124 }
6125
6126 /**
6127  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6128  * @phba: pointer to lpfc hba data structure.
6129  *
6130  * This routine is invoked to set up the driver internal resources before the
6131  * device specific resource setup to support the HBA device it attached to.
6132  *
6133  * Return codes
6134  *      0 - successful
6135  *      other values - error
6136  **/
6137 static int
6138 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6139 {
6140         struct lpfc_sli *psli = &phba->sli;
6141
6142         /*
6143          * Driver resources common to all SLI revisions
6144          */
6145         atomic_set(&phba->fast_event_count, 0);
6146         spin_lock_init(&phba->hbalock);
6147
6148         /* Initialize ndlp management spinlock */
6149         spin_lock_init(&phba->ndlp_lock);
6150
6151         /* Initialize port_list spinlock */
6152         spin_lock_init(&phba->port_list_lock);
6153         INIT_LIST_HEAD(&phba->port_list);
6154
6155         INIT_LIST_HEAD(&phba->work_list);
6156         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6157
6158         /* Initialize the wait queue head for the kernel thread */
6159         init_waitqueue_head(&phba->work_waitq);
6160
6161         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6162                         "1403 Protocols supported %s %s %s\n",
6163                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6164                                 "SCSI" : " "),
6165                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6166                                 "NVME" : " "),
6167                         (phba->nvmet_support ? "NVMET" : " "));
6168
6169         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6170         spin_lock_init(&phba->scsi_buf_list_get_lock);
6171         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6172         spin_lock_init(&phba->scsi_buf_list_put_lock);
6173         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6174
6175         /* Initialize the fabric iocb list */
6176         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6177
6178         /* Initialize list to save ELS buffers */
6179         INIT_LIST_HEAD(&phba->elsbuf);
6180
6181         /* Initialize FCF connection rec list */
6182         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6183
6184         /* Initialize OAS configuration list */
6185         spin_lock_init(&phba->devicelock);
6186         INIT_LIST_HEAD(&phba->luns);
6187
6188         /* MBOX heartbeat timer */
6189         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6190         /* Fabric block timer */
6191         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6192         /* EA polling mode timer */
6193         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6194         /* Heartbeat timer */
6195         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6196
6197         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6198
6199         return 0;
6200 }
6201
6202 /**
6203  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6204  * @phba: pointer to lpfc hba data structure.
6205  *
6206  * This routine is invoked to set up the driver internal resources specific to
6207  * support the SLI-3 HBA device it attached to.
6208  *
6209  * Return codes
6210  * 0 - successful
6211  * other values - error
6212  **/
6213 static int
6214 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6215 {
6216         int rc, entry_sz;
6217
6218         /*
6219          * Initialize timers used by driver
6220          */
6221
6222         /* FCP polling mode timer */
6223         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6224
6225         /* Host attention work mask setup */
6226         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6227         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6228
6229         /* Get all the module params for configuring this host */
6230         lpfc_get_cfgparam(phba);
6231         /* Set up phase-1 common device driver resources */
6232
6233         rc = lpfc_setup_driver_resource_phase1(phba);
6234         if (rc)
6235                 return -ENODEV;
6236
6237         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6238                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6239                 /* check for menlo minimum sg count */
6240                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6241                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6242         }
6243
6244         if (!phba->sli.sli3_ring)
6245                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6246                                               sizeof(struct lpfc_sli_ring),
6247                                               GFP_KERNEL);
6248         if (!phba->sli.sli3_ring)
6249                 return -ENOMEM;
6250
6251         /*
6252          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6253          * used to create the sg_dma_buf_pool must be dynamically calculated.
6254          */
6255
6256         /* Initialize the host templates the configured values. */
6257         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6258         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6259         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6260
6261         if (phba->sli_rev == LPFC_SLI_REV4)
6262                 entry_sz = sizeof(struct sli4_sge);
6263         else
6264                 entry_sz = sizeof(struct ulp_bde64);
6265
6266         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6267         if (phba->cfg_enable_bg) {
6268                 /*
6269                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6270                  * the FCP rsp, and a BDE for each. Sice we have no control
6271                  * over how many protection data segments the SCSI Layer
6272                  * will hand us (ie: there could be one for every block
6273                  * in the IO), we just allocate enough BDEs to accomidate
6274                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6275                  * minimize the risk of running out.
6276                  */
6277                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6278                         sizeof(struct fcp_rsp) +
6279                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6280
6281                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6282                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6283
6284                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6285                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6286         } else {
6287                 /*
6288                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6289                  * the FCP rsp, a BDE for each, and a BDE for up to
6290                  * cfg_sg_seg_cnt data segments.
6291                  */
6292                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6293                         sizeof(struct fcp_rsp) +
6294                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6295
6296                 /* Total BDEs in BPL for scsi_sg_list */
6297                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6298         }
6299
6300         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6301                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6302                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6303                         phba->cfg_total_seg_cnt);
6304
6305         phba->max_vpi = LPFC_MAX_VPI;
6306         /* This will be set to correct value after config_port mbox */
6307         phba->max_vports = 0;
6308
6309         /*
6310          * Initialize the SLI Layer to run with lpfc HBAs.
6311          */
6312         lpfc_sli_setup(phba);
6313         lpfc_sli_queue_init(phba);
6314
6315         /* Allocate device driver memory */
6316         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6317                 return -ENOMEM;
6318
6319         /*
6320          * Enable sr-iov virtual functions if supported and configured
6321          * through the module parameter.
6322          */
6323         if (phba->cfg_sriov_nr_virtfn > 0) {
6324                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6325                                                  phba->cfg_sriov_nr_virtfn);
6326                 if (rc) {
6327                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6328                                         "2808 Requested number of SR-IOV "
6329                                         "virtual functions (%d) is not "
6330                                         "supported\n",
6331                                         phba->cfg_sriov_nr_virtfn);
6332                         phba->cfg_sriov_nr_virtfn = 0;
6333                 }
6334         }
6335
6336         return 0;
6337 }
6338
6339 /**
6340  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6341  * @phba: pointer to lpfc hba data structure.
6342  *
6343  * This routine is invoked to unset the driver internal resources set up
6344  * specific for supporting the SLI-3 HBA device it attached to.
6345  **/
6346 static void
6347 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6348 {
6349         /* Free device driver memory allocated */
6350         lpfc_mem_free_all(phba);
6351
6352         return;
6353 }
6354
6355 /**
6356  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6357  * @phba: pointer to lpfc hba data structure.
6358  *
6359  * This routine is invoked to set up the driver internal resources specific to
6360  * support the SLI-4 HBA device it attached to.
6361  *
6362  * Return codes
6363  *      0 - successful
6364  *      other values - error
6365  **/
6366 static int
6367 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6368 {
6369         LPFC_MBOXQ_t *mboxq;
6370         MAILBOX_t *mb;
6371         int rc, i, max_buf_size;
6372         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6373         struct lpfc_mqe *mqe;
6374         int longs;
6375         int extra;
6376         uint64_t wwn;
6377         u32 if_type;
6378         u32 if_fam;
6379
6380         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6381         phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6382         phba->sli4_hba.curr_disp_cpu = 0;
6383
6384         /* Get all the module params for configuring this host */
6385         lpfc_get_cfgparam(phba);
6386
6387         /* Set up phase-1 common device driver resources */
6388         rc = lpfc_setup_driver_resource_phase1(phba);
6389         if (rc)
6390                 return -ENODEV;
6391
6392         /* Before proceed, wait for POST done and device ready */
6393         rc = lpfc_sli4_post_status_check(phba);
6394         if (rc)
6395                 return -ENODEV;
6396
6397         /*
6398          * Initialize timers used by driver
6399          */
6400
6401         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6402
6403         /* FCF rediscover timer */
6404         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6405
6406         /*
6407          * Control structure for handling external multi-buffer mailbox
6408          * command pass-through.
6409          */
6410         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6411                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6412         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6413
6414         phba->max_vpi = LPFC_MAX_VPI;
6415
6416         /* This will be set to correct value after the read_config mbox */
6417         phba->max_vports = 0;
6418
6419         /* Program the default value of vlan_id and fc_map */
6420         phba->valid_vlan = 0;
6421         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6422         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6423         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6424
6425         /*
6426          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6427          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6428          * The WQ create will allocate the ring.
6429          */
6430
6431         /*
6432          * 1 for cmd, 1 for rsp, NVME adds an extra one
6433          * for boundary conditions in its max_sgl_segment template.
6434          */
6435         extra = 2;
6436         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6437                 extra++;
6438
6439         /*
6440          * It doesn't matter what family our adapter is in, we are
6441          * limited to 2 Pages, 512 SGEs, for our SGL.
6442          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6443          */
6444         max_buf_size = (2 * SLI4_PAGE_SIZE);
6445
6446         /*
6447          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6448          * used to create the sg_dma_buf_pool must be calculated.
6449          */
6450         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6451                 /*
6452                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6453                  * the FCP rsp, and a SGE. Sice we have no control
6454                  * over how many protection segments the SCSI Layer
6455                  * will hand us (ie: there could be one for every block
6456                  * in the IO), just allocate enough SGEs to accomidate
6457                  * our max amount and we need to limit lpfc_sg_seg_cnt
6458                  * to minimize the risk of running out.
6459                  */
6460                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6461                                 sizeof(struct fcp_rsp) + max_buf_size;
6462
6463                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6464                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6465
6466                 /*
6467                  * If supporting DIF, reduce the seg count for scsi to
6468                  * allow room for the DIF sges.
6469                  */
6470                 if (phba->cfg_enable_bg &&
6471                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6472                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6473                 else
6474                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6475
6476         } else {
6477                 /*
6478                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6479                  * the FCP rsp, a SGE for each, and a SGE for up to
6480                  * cfg_sg_seg_cnt data segments.
6481                  */
6482                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6483                                 sizeof(struct fcp_rsp) +
6484                                 ((phba->cfg_sg_seg_cnt + extra) *
6485                                 sizeof(struct sli4_sge));
6486
6487                 /* Total SGEs for scsi_sg_list */
6488                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6489                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6490
6491                 /*
6492                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6493                  * need to post 1 page for the SGL.
6494                  */
6495         }
6496
6497         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6498         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6499                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6500                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6501                                         "6300 Reducing NVME sg segment "
6502                                         "cnt to %d\n",
6503                                         LPFC_MAX_NVME_SEG_CNT);
6504                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6505                 } else
6506                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6507         }
6508
6509         /* Initialize the host templates with the updated values. */
6510         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6511         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6512         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6513
6514         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6515                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6516         else
6517                 phba->cfg_sg_dma_buf_size =
6518                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6519
6520         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6521                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6522                         "total:%d scsi:%d nvme:%d\n",
6523                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6524                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6525                         phba->cfg_nvme_seg_cnt);
6526
6527         /* Initialize buffer queue management fields */
6528         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6529         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6530         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6531
6532         /*
6533          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6534          */
6535         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6536                 /* Initialize the Abort scsi buffer list used by driver */
6537                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6538                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6539         }
6540
6541         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6542                 /* Initialize the Abort nvme buffer list used by driver */
6543                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6544                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6545                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6546         }
6547
6548         /* This abort list used by worker thread */
6549         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6550         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6551
6552         /*
6553          * Initialize driver internal slow-path work queues
6554          */
6555
6556         /* Driver internel slow-path CQ Event pool */
6557         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6558         /* Response IOCB work queue list */
6559         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6560         /* Asynchronous event CQ Event work queue list */
6561         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6562         /* Fast-path XRI aborted CQ Event work queue list */
6563         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6564         /* Slow-path XRI aborted CQ Event work queue list */
6565         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6566         /* Receive queue CQ Event work queue list */
6567         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6568
6569         /* Initialize extent block lists. */
6570         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6571         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6572         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6573         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6574
6575         /* Initialize mboxq lists. If the early init routines fail
6576          * these lists need to be correctly initialized.
6577          */
6578         INIT_LIST_HEAD(&phba->sli.mboxq);
6579         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6580
6581         /* initialize optic_state to 0xFF */
6582         phba->sli4_hba.lnk_info.optic_state = 0xff;
6583
6584         /* Allocate device driver memory */
6585         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6586         if (rc)
6587                 return -ENOMEM;
6588
6589         /* IF Type 2 ports get initialized now. */
6590         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6591             LPFC_SLI_INTF_IF_TYPE_2) {
6592                 rc = lpfc_pci_function_reset(phba);
6593                 if (unlikely(rc)) {
6594                         rc = -ENODEV;
6595                         goto out_free_mem;
6596                 }
6597                 phba->temp_sensor_support = 1;
6598         }
6599
6600         /* Create the bootstrap mailbox command */
6601         rc = lpfc_create_bootstrap_mbox(phba);
6602         if (unlikely(rc))
6603                 goto out_free_mem;
6604
6605         /* Set up the host's endian order with the device. */
6606         rc = lpfc_setup_endian_order(phba);
6607         if (unlikely(rc))
6608                 goto out_free_bsmbx;
6609
6610         /* Set up the hba's configuration parameters. */
6611         rc = lpfc_sli4_read_config(phba);
6612         if (unlikely(rc))
6613                 goto out_free_bsmbx;
6614         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6615         if (unlikely(rc))
6616                 goto out_free_bsmbx;
6617
6618         /* IF Type 0 ports get initialized now. */
6619         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6620             LPFC_SLI_INTF_IF_TYPE_0) {
6621                 rc = lpfc_pci_function_reset(phba);
6622                 if (unlikely(rc))
6623                         goto out_free_bsmbx;
6624         }
6625
6626         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6627                                                        GFP_KERNEL);
6628         if (!mboxq) {
6629                 rc = -ENOMEM;
6630                 goto out_free_bsmbx;
6631         }
6632
6633         /* Check for NVMET being configured */
6634         phba->nvmet_support = 0;
6635         if (lpfc_enable_nvmet_cnt) {
6636
6637                 /* First get WWN of HBA instance */
6638                 lpfc_read_nv(phba, mboxq);
6639                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6640                 if (rc != MBX_SUCCESS) {
6641                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6642                                         "6016 Mailbox failed , mbxCmd x%x "
6643                                         "READ_NV, mbxStatus x%x\n",
6644                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6645                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6646                         mempool_free(mboxq, phba->mbox_mem_pool);
6647                         rc = -EIO;
6648                         goto out_free_bsmbx;
6649                 }
6650                 mb = &mboxq->u.mb;
6651                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6652                        sizeof(uint64_t));
6653                 wwn = cpu_to_be64(wwn);
6654                 phba->sli4_hba.wwnn.u.name = wwn;
6655                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6656                        sizeof(uint64_t));
6657                 /* wwn is WWPN of HBA instance */
6658                 wwn = cpu_to_be64(wwn);
6659                 phba->sli4_hba.wwpn.u.name = wwn;
6660
6661                 /* Check to see if it matches any module parameter */
6662                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6663                         if (wwn == lpfc_enable_nvmet[i]) {
6664 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6665                                 if (lpfc_nvmet_mem_alloc(phba))
6666                                         break;
6667
6668                                 phba->nvmet_support = 1; /* a match */
6669
6670                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6671                                                 "6017 NVME Target %016llx\n",
6672                                                 wwn);
6673 #else
6674                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6675                                                 "6021 Can't enable NVME Target."
6676                                                 " NVME_TARGET_FC infrastructure"
6677                                                 " is not in kernel\n");
6678 #endif
6679                                 /* Not supported for NVMET */
6680                                 phba->cfg_xri_rebalancing = 0;
6681                                 break;
6682                         }
6683                 }
6684         }
6685
6686         lpfc_nvme_mod_param_dep(phba);
6687
6688         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6689         lpfc_supported_pages(mboxq);
6690         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6691         if (!rc) {
6692                 mqe = &mboxq->u.mqe;
6693                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6694                        LPFC_MAX_SUPPORTED_PAGES);
6695                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6696                         switch (pn_page[i]) {
6697                         case LPFC_SLI4_PARAMETERS:
6698                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6699                                 break;
6700                         default:
6701                                 break;
6702                         }
6703                 }
6704                 /* Read the port's SLI4 Parameters capabilities if supported. */
6705                 if (phba->sli4_hba.pc_sli4_params.supported)
6706                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6707                 if (rc) {
6708                         mempool_free(mboxq, phba->mbox_mem_pool);
6709                         rc = -EIO;
6710                         goto out_free_bsmbx;
6711                 }
6712         }
6713
6714         /*
6715          * Get sli4 parameters that override parameters from Port capabilities.
6716          * If this call fails, it isn't critical unless the SLI4 parameters come
6717          * back in conflict.
6718          */
6719         rc = lpfc_get_sli4_parameters(phba, mboxq);
6720         if (rc) {
6721                 if_type = bf_get(lpfc_sli_intf_if_type,
6722                                  &phba->sli4_hba.sli_intf);
6723                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6724                                 &phba->sli4_hba.sli_intf);
6725                 if (phba->sli4_hba.extents_in_use &&
6726                     phba->sli4_hba.rpi_hdrs_in_use) {
6727                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6728                                 "2999 Unsupported SLI4 Parameters "
6729                                 "Extents and RPI headers enabled.\n");
6730                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6731                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6732                                 mempool_free(mboxq, phba->mbox_mem_pool);
6733                                 rc = -EIO;
6734                                 goto out_free_bsmbx;
6735                         }
6736                 }
6737                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6738                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6739                         mempool_free(mboxq, phba->mbox_mem_pool);
6740                         rc = -EIO;
6741                         goto out_free_bsmbx;
6742                 }
6743         }
6744
6745         mempool_free(mboxq, phba->mbox_mem_pool);
6746
6747         /* Verify OAS is supported */
6748         lpfc_sli4_oas_verify(phba);
6749
6750         /* Verify RAS support on adapter */
6751         lpfc_sli4_ras_init(phba);
6752
6753         /* Verify all the SLI4 queues */
6754         rc = lpfc_sli4_queue_verify(phba);
6755         if (rc)
6756                 goto out_free_bsmbx;
6757
6758         /* Create driver internal CQE event pool */
6759         rc = lpfc_sli4_cq_event_pool_create(phba);
6760         if (rc)
6761                 goto out_free_bsmbx;
6762
6763         /* Initialize sgl lists per host */
6764         lpfc_init_sgl_list(phba);
6765
6766         /* Allocate and initialize active sgl array */
6767         rc = lpfc_init_active_sgl_array(phba);
6768         if (rc) {
6769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6770                                 "1430 Failed to initialize sgl list.\n");
6771                 goto out_destroy_cq_event_pool;
6772         }
6773         rc = lpfc_sli4_init_rpi_hdrs(phba);
6774         if (rc) {
6775                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6776                                 "1432 Failed to initialize rpi headers.\n");
6777                 goto out_free_active_sgl;
6778         }
6779
6780         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6781         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6782         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6783                                          GFP_KERNEL);
6784         if (!phba->fcf.fcf_rr_bmask) {
6785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6786                                 "2759 Failed allocate memory for FCF round "
6787                                 "robin failover bmask\n");
6788                 rc = -ENOMEM;
6789                 goto out_remove_rpi_hdrs;
6790         }
6791
6792         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6793                                             sizeof(struct lpfc_hba_eq_hdl),
6794                                             GFP_KERNEL);
6795         if (!phba->sli4_hba.hba_eq_hdl) {
6796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6797                                 "2572 Failed allocate memory for "
6798                                 "fast-path per-EQ handle array\n");
6799                 rc = -ENOMEM;
6800                 goto out_free_fcf_rr_bmask;
6801         }
6802
6803         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6804                                         sizeof(struct lpfc_vector_map_info),
6805                                         GFP_KERNEL);
6806         if (!phba->sli4_hba.cpu_map) {
6807                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6808                                 "3327 Failed allocate memory for msi-x "
6809                                 "interrupt vector mapping\n");
6810                 rc = -ENOMEM;
6811                 goto out_free_hba_eq_hdl;
6812         }
6813
6814         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6815         if (!phba->sli4_hba.eq_info) {
6816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6817                                 "3321 Failed allocation for per_cpu stats\n");
6818                 rc = -ENOMEM;
6819                 goto out_free_hba_cpu_map;
6820         }
6821         /*
6822          * Enable sr-iov virtual functions if supported and configured
6823          * through the module parameter.
6824          */
6825         if (phba->cfg_sriov_nr_virtfn > 0) {
6826                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6827                                                  phba->cfg_sriov_nr_virtfn);
6828                 if (rc) {
6829                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6830                                         "3020 Requested number of SR-IOV "
6831                                         "virtual functions (%d) is not "
6832                                         "supported\n",
6833                                         phba->cfg_sriov_nr_virtfn);
6834                         phba->cfg_sriov_nr_virtfn = 0;
6835                 }
6836         }
6837
6838         return 0;
6839
6840 out_free_hba_cpu_map:
6841         kfree(phba->sli4_hba.cpu_map);
6842 out_free_hba_eq_hdl:
6843         kfree(phba->sli4_hba.hba_eq_hdl);
6844 out_free_fcf_rr_bmask:
6845         kfree(phba->fcf.fcf_rr_bmask);
6846 out_remove_rpi_hdrs:
6847         lpfc_sli4_remove_rpi_hdrs(phba);
6848 out_free_active_sgl:
6849         lpfc_free_active_sgl(phba);
6850 out_destroy_cq_event_pool:
6851         lpfc_sli4_cq_event_pool_destroy(phba);
6852 out_free_bsmbx:
6853         lpfc_destroy_bootstrap_mbox(phba);
6854 out_free_mem:
6855         lpfc_mem_free(phba);
6856         return rc;
6857 }
6858
6859 /**
6860  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6861  * @phba: pointer to lpfc hba data structure.
6862  *
6863  * This routine is invoked to unset the driver internal resources set up
6864  * specific for supporting the SLI-4 HBA device it attached to.
6865  **/
6866 static void
6867 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6868 {
6869         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6870
6871         free_percpu(phba->sli4_hba.eq_info);
6872
6873         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6874         kfree(phba->sli4_hba.cpu_map);
6875         phba->sli4_hba.num_possible_cpu = 0;
6876         phba->sli4_hba.num_present_cpu = 0;
6877         phba->sli4_hba.curr_disp_cpu = 0;
6878
6879         /* Free memory allocated for fast-path work queue handles */
6880         kfree(phba->sli4_hba.hba_eq_hdl);
6881
6882         /* Free the allocated rpi headers. */
6883         lpfc_sli4_remove_rpi_hdrs(phba);
6884         lpfc_sli4_remove_rpis(phba);
6885
6886         /* Free eligible FCF index bmask */
6887         kfree(phba->fcf.fcf_rr_bmask);
6888
6889         /* Free the ELS sgl list */
6890         lpfc_free_active_sgl(phba);
6891         lpfc_free_els_sgl_list(phba);
6892         lpfc_free_nvmet_sgl_list(phba);
6893
6894         /* Free the completion queue EQ event pool */
6895         lpfc_sli4_cq_event_release_all(phba);
6896         lpfc_sli4_cq_event_pool_destroy(phba);
6897
6898         /* Release resource identifiers. */
6899         lpfc_sli4_dealloc_resource_identifiers(phba);
6900
6901         /* Free the bsmbx region. */
6902         lpfc_destroy_bootstrap_mbox(phba);
6903
6904         /* Free the SLI Layer memory with SLI4 HBAs */
6905         lpfc_mem_free_all(phba);
6906
6907         /* Free the current connect table */
6908         list_for_each_entry_safe(conn_entry, next_conn_entry,
6909                 &phba->fcf_conn_rec_list, list) {
6910                 list_del_init(&conn_entry->list);
6911                 kfree(conn_entry);
6912         }
6913
6914         return;
6915 }
6916
6917 /**
6918  * lpfc_init_api_table_setup - Set up init api function jump table
6919  * @phba: The hba struct for which this call is being executed.
6920  * @dev_grp: The HBA PCI-Device group number.
6921  *
6922  * This routine sets up the device INIT interface API function jump table
6923  * in @phba struct.
6924  *
6925  * Returns: 0 - success, -ENODEV - failure.
6926  **/
6927 int
6928 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6929 {
6930         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6931         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6932         phba->lpfc_selective_reset = lpfc_selective_reset;
6933         switch (dev_grp) {
6934         case LPFC_PCI_DEV_LP:
6935                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6936                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6937                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6938                 break;
6939         case LPFC_PCI_DEV_OC:
6940                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6941                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6942                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6943                 break;
6944         default:
6945                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6946                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6947                                 dev_grp);
6948                 return -ENODEV;
6949                 break;
6950         }
6951         return 0;
6952 }
6953
6954 /**
6955  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6956  * @phba: pointer to lpfc hba data structure.
6957  *
6958  * This routine is invoked to set up the driver internal resources after the
6959  * device specific resource setup to support the HBA device it attached to.
6960  *
6961  * Return codes
6962  *      0 - successful
6963  *      other values - error
6964  **/
6965 static int
6966 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6967 {
6968         int error;
6969
6970         /* Startup the kernel thread for this host adapter. */
6971         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6972                                           "lpfc_worker_%d", phba->brd_no);
6973         if (IS_ERR(phba->worker_thread)) {
6974                 error = PTR_ERR(phba->worker_thread);
6975                 return error;
6976         }
6977
6978         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6979         if (phba->sli_rev == LPFC_SLI_REV4)
6980                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6981         else
6982                 phba->wq = NULL;
6983
6984         return 0;
6985 }
6986
6987 /**
6988  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6989  * @phba: pointer to lpfc hba data structure.
6990  *
6991  * This routine is invoked to unset the driver internal resources set up after
6992  * the device specific resource setup for supporting the HBA device it
6993  * attached to.
6994  **/
6995 static void
6996 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6997 {
6998         if (phba->wq) {
6999                 flush_workqueue(phba->wq);
7000                 destroy_workqueue(phba->wq);
7001                 phba->wq = NULL;
7002         }
7003
7004         /* Stop kernel worker thread */
7005         if (phba->worker_thread)
7006                 kthread_stop(phba->worker_thread);
7007 }
7008
7009 /**
7010  * lpfc_free_iocb_list - Free iocb list.
7011  * @phba: pointer to lpfc hba data structure.
7012  *
7013  * This routine is invoked to free the driver's IOCB list and memory.
7014  **/
7015 void
7016 lpfc_free_iocb_list(struct lpfc_hba *phba)
7017 {
7018         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7019
7020         spin_lock_irq(&phba->hbalock);
7021         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7022                                  &phba->lpfc_iocb_list, list) {
7023                 list_del(&iocbq_entry->list);
7024                 kfree(iocbq_entry);
7025                 phba->total_iocbq_bufs--;
7026         }
7027         spin_unlock_irq(&phba->hbalock);
7028
7029         return;
7030 }
7031
7032 /**
7033  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7034  * @phba: pointer to lpfc hba data structure.
7035  *
7036  * This routine is invoked to allocate and initizlize the driver's IOCB
7037  * list and set up the IOCB tag array accordingly.
7038  *
7039  * Return codes
7040  *      0 - successful
7041  *      other values - error
7042  **/
7043 int
7044 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7045 {
7046         struct lpfc_iocbq *iocbq_entry = NULL;
7047         uint16_t iotag;
7048         int i;
7049
7050         /* Initialize and populate the iocb list per host.  */
7051         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7052         for (i = 0; i < iocb_count; i++) {
7053                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7054                 if (iocbq_entry == NULL) {
7055                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7056                                 "expected %d count. Unloading driver.\n",
7057                                 __func__, i, LPFC_IOCB_LIST_CNT);
7058                         goto out_free_iocbq;
7059                 }
7060
7061                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7062                 if (iotag == 0) {
7063                         kfree(iocbq_entry);
7064                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7065                                 "Unloading driver.\n", __func__);
7066                         goto out_free_iocbq;
7067                 }
7068                 iocbq_entry->sli4_lxritag = NO_XRI;
7069                 iocbq_entry->sli4_xritag = NO_XRI;
7070
7071                 spin_lock_irq(&phba->hbalock);
7072                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7073                 phba->total_iocbq_bufs++;
7074                 spin_unlock_irq(&phba->hbalock);
7075         }
7076
7077         return 0;
7078
7079 out_free_iocbq:
7080         lpfc_free_iocb_list(phba);
7081
7082         return -ENOMEM;
7083 }
7084
7085 /**
7086  * lpfc_free_sgl_list - Free a given sgl list.
7087  * @phba: pointer to lpfc hba data structure.
7088  * @sglq_list: pointer to the head of sgl list.
7089  *
7090  * This routine is invoked to free a give sgl list and memory.
7091  **/
7092 void
7093 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7094 {
7095         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7096
7097         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7098                 list_del(&sglq_entry->list);
7099                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7100                 kfree(sglq_entry);
7101         }
7102 }
7103
7104 /**
7105  * lpfc_free_els_sgl_list - Free els sgl list.
7106  * @phba: pointer to lpfc hba data structure.
7107  *
7108  * This routine is invoked to free the driver's els sgl list and memory.
7109  **/
7110 static void
7111 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7112 {
7113         LIST_HEAD(sglq_list);
7114
7115         /* Retrieve all els sgls from driver list */
7116         spin_lock_irq(&phba->hbalock);
7117         spin_lock(&phba->sli4_hba.sgl_list_lock);
7118         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7119         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7120         spin_unlock_irq(&phba->hbalock);
7121
7122         /* Now free the sgl list */
7123         lpfc_free_sgl_list(phba, &sglq_list);
7124 }
7125
7126 /**
7127  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7128  * @phba: pointer to lpfc hba data structure.
7129  *
7130  * This routine is invoked to free the driver's nvmet sgl list and memory.
7131  **/
7132 static void
7133 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7134 {
7135         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7136         LIST_HEAD(sglq_list);
7137
7138         /* Retrieve all nvmet sgls from driver list */
7139         spin_lock_irq(&phba->hbalock);
7140         spin_lock(&phba->sli4_hba.sgl_list_lock);
7141         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7142         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7143         spin_unlock_irq(&phba->hbalock);
7144
7145         /* Now free the sgl list */
7146         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7147                 list_del(&sglq_entry->list);
7148                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7149                 kfree(sglq_entry);
7150         }
7151
7152         /* Update the nvmet_xri_cnt to reflect no current sgls.
7153          * The next initialization cycle sets the count and allocates
7154          * the sgls over again.
7155          */
7156         phba->sli4_hba.nvmet_xri_cnt = 0;
7157 }
7158
7159 /**
7160  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7161  * @phba: pointer to lpfc hba data structure.
7162  *
7163  * This routine is invoked to allocate the driver's active sgl memory.
7164  * This array will hold the sglq_entry's for active IOs.
7165  **/
7166 static int
7167 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7168 {
7169         int size;
7170         size = sizeof(struct lpfc_sglq *);
7171         size *= phba->sli4_hba.max_cfg_param.max_xri;
7172
7173         phba->sli4_hba.lpfc_sglq_active_list =
7174                 kzalloc(size, GFP_KERNEL);
7175         if (!phba->sli4_hba.lpfc_sglq_active_list)
7176                 return -ENOMEM;
7177         return 0;
7178 }
7179
7180 /**
7181  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7182  * @phba: pointer to lpfc hba data structure.
7183  *
7184  * This routine is invoked to walk through the array of active sglq entries
7185  * and free all of the resources.
7186  * This is just a place holder for now.
7187  **/
7188 static void
7189 lpfc_free_active_sgl(struct lpfc_hba *phba)
7190 {
7191         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7192 }
7193
7194 /**
7195  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7196  * @phba: pointer to lpfc hba data structure.
7197  *
7198  * This routine is invoked to allocate and initizlize the driver's sgl
7199  * list and set up the sgl xritag tag array accordingly.
7200  *
7201  **/
7202 static void
7203 lpfc_init_sgl_list(struct lpfc_hba *phba)
7204 {
7205         /* Initialize and populate the sglq list per host/VF. */
7206         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7207         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7208         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7209         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7210
7211         /* els xri-sgl book keeping */
7212         phba->sli4_hba.els_xri_cnt = 0;
7213
7214         /* nvme xri-buffer book keeping */
7215         phba->sli4_hba.io_xri_cnt = 0;
7216 }
7217
7218 /**
7219  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7220  * @phba: pointer to lpfc hba data structure.
7221  *
7222  * This routine is invoked to post rpi header templates to the
7223  * port for those SLI4 ports that do not support extents.  This routine
7224  * posts a PAGE_SIZE memory region to the port to hold up to
7225  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7226  * and should be called only when interrupts are disabled.
7227  *
7228  * Return codes
7229  *      0 - successful
7230  *      -ERROR - otherwise.
7231  **/
7232 int
7233 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7234 {
7235         int rc = 0;
7236         struct lpfc_rpi_hdr *rpi_hdr;
7237
7238         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7239         if (!phba->sli4_hba.rpi_hdrs_in_use)
7240                 return rc;
7241         if (phba->sli4_hba.extents_in_use)
7242                 return -EIO;
7243
7244         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7245         if (!rpi_hdr) {
7246                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7247                                 "0391 Error during rpi post operation\n");
7248                 lpfc_sli4_remove_rpis(phba);
7249                 rc = -ENODEV;
7250         }
7251
7252         return rc;
7253 }
7254
7255 /**
7256  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7257  * @phba: pointer to lpfc hba data structure.
7258  *
7259  * This routine is invoked to allocate a single 4KB memory region to
7260  * support rpis and stores them in the phba.  This single region
7261  * provides support for up to 64 rpis.  The region is used globally
7262  * by the device.
7263  *
7264  * Returns:
7265  *   A valid rpi hdr on success.
7266  *   A NULL pointer on any failure.
7267  **/
7268 struct lpfc_rpi_hdr *
7269 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7270 {
7271         uint16_t rpi_limit, curr_rpi_range;
7272         struct lpfc_dmabuf *dmabuf;
7273         struct lpfc_rpi_hdr *rpi_hdr;
7274
7275         /*
7276          * If the SLI4 port supports extents, posting the rpi header isn't
7277          * required.  Set the expected maximum count and let the actual value
7278          * get set when extents are fully allocated.
7279          */
7280         if (!phba->sli4_hba.rpi_hdrs_in_use)
7281                 return NULL;
7282         if (phba->sli4_hba.extents_in_use)
7283                 return NULL;
7284
7285         /* The limit on the logical index is just the max_rpi count. */
7286         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7287
7288         spin_lock_irq(&phba->hbalock);
7289         /*
7290          * Establish the starting RPI in this header block.  The starting
7291          * rpi is normalized to a zero base because the physical rpi is
7292          * port based.
7293          */
7294         curr_rpi_range = phba->sli4_hba.next_rpi;
7295         spin_unlock_irq(&phba->hbalock);
7296
7297         /* Reached full RPI range */
7298         if (curr_rpi_range == rpi_limit)
7299                 return NULL;
7300
7301         /*
7302          * First allocate the protocol header region for the port.  The
7303          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7304          */
7305         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7306         if (!dmabuf)
7307                 return NULL;
7308
7309         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7310                                           LPFC_HDR_TEMPLATE_SIZE,
7311                                           &dmabuf->phys, GFP_KERNEL);
7312         if (!dmabuf->virt) {
7313                 rpi_hdr = NULL;
7314                 goto err_free_dmabuf;
7315         }
7316
7317         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7318                 rpi_hdr = NULL;
7319                 goto err_free_coherent;
7320         }
7321
7322         /* Save the rpi header data for cleanup later. */
7323         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7324         if (!rpi_hdr)
7325                 goto err_free_coherent;
7326
7327         rpi_hdr->dmabuf = dmabuf;
7328         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7329         rpi_hdr->page_count = 1;
7330         spin_lock_irq(&phba->hbalock);
7331
7332         /* The rpi_hdr stores the logical index only. */
7333         rpi_hdr->start_rpi = curr_rpi_range;
7334         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7335         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7336
7337         spin_unlock_irq(&phba->hbalock);
7338         return rpi_hdr;
7339
7340  err_free_coherent:
7341         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7342                           dmabuf->virt, dmabuf->phys);
7343  err_free_dmabuf:
7344         kfree(dmabuf);
7345         return NULL;
7346 }
7347
7348 /**
7349  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7350  * @phba: pointer to lpfc hba data structure.
7351  *
7352  * This routine is invoked to remove all memory resources allocated
7353  * to support rpis for SLI4 ports not supporting extents. This routine
7354  * presumes the caller has released all rpis consumed by fabric or port
7355  * logins and is prepared to have the header pages removed.
7356  **/
7357 void
7358 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7359 {
7360         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7361
7362         if (!phba->sli4_hba.rpi_hdrs_in_use)
7363                 goto exit;
7364
7365         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7366                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7367                 list_del(&rpi_hdr->list);
7368                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7369                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7370                 kfree(rpi_hdr->dmabuf);
7371                 kfree(rpi_hdr);
7372         }
7373  exit:
7374         /* There are no rpis available to the port now. */
7375         phba->sli4_hba.next_rpi = 0;
7376 }
7377
7378 /**
7379  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7380  * @pdev: pointer to pci device data structure.
7381  *
7382  * This routine is invoked to allocate the driver hba data structure for an
7383  * HBA device. If the allocation is successful, the phba reference to the
7384  * PCI device data structure is set.
7385  *
7386  * Return codes
7387  *      pointer to @phba - successful
7388  *      NULL - error
7389  **/
7390 static struct lpfc_hba *
7391 lpfc_hba_alloc(struct pci_dev *pdev)
7392 {
7393         struct lpfc_hba *phba;
7394
7395         /* Allocate memory for HBA structure */
7396         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7397         if (!phba) {
7398                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7399                 return NULL;
7400         }
7401
7402         /* Set reference to PCI device in HBA structure */
7403         phba->pcidev = pdev;
7404
7405         /* Assign an unused board number */
7406         phba->brd_no = lpfc_get_instance();
7407         if (phba->brd_no < 0) {
7408                 kfree(phba);
7409                 return NULL;
7410         }
7411         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7412
7413         spin_lock_init(&phba->ct_ev_lock);
7414         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7415
7416         return phba;
7417 }
7418
7419 /**
7420  * lpfc_hba_free - Free driver hba data structure with a device.
7421  * @phba: pointer to lpfc hba data structure.
7422  *
7423  * This routine is invoked to free the driver hba data structure with an
7424  * HBA device.
7425  **/
7426 static void
7427 lpfc_hba_free(struct lpfc_hba *phba)
7428 {
7429         if (phba->sli_rev == LPFC_SLI_REV4)
7430                 kfree(phba->sli4_hba.hdwq);
7431
7432         /* Release the driver assigned board number */
7433         idr_remove(&lpfc_hba_index, phba->brd_no);
7434
7435         /* Free memory allocated with sli3 rings */
7436         kfree(phba->sli.sli3_ring);
7437         phba->sli.sli3_ring = NULL;
7438
7439         kfree(phba);
7440         return;
7441 }
7442
7443 /**
7444  * lpfc_create_shost - Create hba physical port with associated scsi host.
7445  * @phba: pointer to lpfc hba data structure.
7446  *
7447  * This routine is invoked to create HBA physical port and associate a SCSI
7448  * host with it.
7449  *
7450  * Return codes
7451  *      0 - successful
7452  *      other values - error
7453  **/
7454 static int
7455 lpfc_create_shost(struct lpfc_hba *phba)
7456 {
7457         struct lpfc_vport *vport;
7458         struct Scsi_Host  *shost;
7459
7460         /* Initialize HBA FC structure */
7461         phba->fc_edtov = FF_DEF_EDTOV;
7462         phba->fc_ratov = FF_DEF_RATOV;
7463         phba->fc_altov = FF_DEF_ALTOV;
7464         phba->fc_arbtov = FF_DEF_ARBTOV;
7465
7466         atomic_set(&phba->sdev_cnt, 0);
7467         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7468         if (!vport)
7469                 return -ENODEV;
7470
7471         shost = lpfc_shost_from_vport(vport);
7472         phba->pport = vport;
7473
7474         if (phba->nvmet_support) {
7475                 /* Only 1 vport (pport) will support NVME target */
7476                 if (phba->txrdy_payload_pool == NULL) {
7477                         phba->txrdy_payload_pool = dma_pool_create(
7478                                 "txrdy_pool", &phba->pcidev->dev,
7479                                 TXRDY_PAYLOAD_LEN, 16, 0);
7480                         if (phba->txrdy_payload_pool) {
7481                                 phba->targetport = NULL;
7482                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7483                                 lpfc_printf_log(phba, KERN_INFO,
7484                                                 LOG_INIT | LOG_NVME_DISC,
7485                                                 "6076 NVME Target Found\n");
7486                         }
7487                 }
7488         }
7489
7490         lpfc_debugfs_initialize(vport);
7491         /* Put reference to SCSI host to driver's device private data */
7492         pci_set_drvdata(phba->pcidev, shost);
7493
7494         /*
7495          * At this point we are fully registered with PSA. In addition,
7496          * any initial discovery should be completed.
7497          */
7498         vport->load_flag |= FC_ALLOW_FDMI;
7499         if (phba->cfg_enable_SmartSAN ||
7500             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7501
7502                 /* Setup appropriate attribute masks */
7503                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7504                 if (phba->cfg_enable_SmartSAN)
7505                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7506                 else
7507                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7508         }
7509         return 0;
7510 }
7511
7512 /**
7513  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7514  * @phba: pointer to lpfc hba data structure.
7515  *
7516  * This routine is invoked to destroy HBA physical port and the associated
7517  * SCSI host.
7518  **/
7519 static void
7520 lpfc_destroy_shost(struct lpfc_hba *phba)
7521 {
7522         struct lpfc_vport *vport = phba->pport;
7523
7524         /* Destroy physical port that associated with the SCSI host */
7525         destroy_port(vport);
7526
7527         return;
7528 }
7529
7530 /**
7531  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7532  * @phba: pointer to lpfc hba data structure.
7533  * @shost: the shost to be used to detect Block guard settings.
7534  *
7535  * This routine sets up the local Block guard protocol settings for @shost.
7536  * This routine also allocates memory for debugging bg buffers.
7537  **/
7538 static void
7539 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7540 {
7541         uint32_t old_mask;
7542         uint32_t old_guard;
7543
7544         int pagecnt = 10;
7545         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7546                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7547                                 "1478 Registering BlockGuard with the "
7548                                 "SCSI layer\n");
7549
7550                 old_mask = phba->cfg_prot_mask;
7551                 old_guard = phba->cfg_prot_guard;
7552
7553                 /* Only allow supported values */
7554                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7555                         SHOST_DIX_TYPE0_PROTECTION |
7556                         SHOST_DIX_TYPE1_PROTECTION);
7557                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7558                                          SHOST_DIX_GUARD_CRC);
7559
7560                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7561                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7562                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7563
7564                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7565                         if ((old_mask != phba->cfg_prot_mask) ||
7566                                 (old_guard != phba->cfg_prot_guard))
7567                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568                                         "1475 Registering BlockGuard with the "
7569                                         "SCSI layer: mask %d  guard %d\n",
7570                                         phba->cfg_prot_mask,
7571                                         phba->cfg_prot_guard);
7572
7573                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7574                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7575                 } else
7576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577                                 "1479 Not Registering BlockGuard with the SCSI "
7578                                 "layer, Bad protection parameters: %d %d\n",
7579                                 old_mask, old_guard);
7580         }
7581
7582         if (!_dump_buf_data) {
7583                 while (pagecnt) {
7584                         spin_lock_init(&_dump_buf_lock);
7585                         _dump_buf_data =
7586                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7587                         if (_dump_buf_data) {
7588                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7589                                         "9043 BLKGRD: allocated %d pages for "
7590                                        "_dump_buf_data at 0x%p\n",
7591                                        (1 << pagecnt), _dump_buf_data);
7592                                 _dump_buf_data_order = pagecnt;
7593                                 memset(_dump_buf_data, 0,
7594                                        ((1 << PAGE_SHIFT) << pagecnt));
7595                                 break;
7596                         } else
7597                                 --pagecnt;
7598                 }
7599                 if (!_dump_buf_data_order)
7600                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7601                                 "9044 BLKGRD: ERROR unable to allocate "
7602                                "memory for hexdump\n");
7603         } else
7604                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7605                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7606                        "\n", _dump_buf_data);
7607         if (!_dump_buf_dif) {
7608                 while (pagecnt) {
7609                         _dump_buf_dif =
7610                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7611                         if (_dump_buf_dif) {
7612                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7613                                         "9046 BLKGRD: allocated %d pages for "
7614                                        "_dump_buf_dif at 0x%p\n",
7615                                        (1 << pagecnt), _dump_buf_dif);
7616                                 _dump_buf_dif_order = pagecnt;
7617                                 memset(_dump_buf_dif, 0,
7618                                        ((1 << PAGE_SHIFT) << pagecnt));
7619                                 break;
7620                         } else
7621                                 --pagecnt;
7622                 }
7623                 if (!_dump_buf_dif_order)
7624                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7625                         "9047 BLKGRD: ERROR unable to allocate "
7626                                "memory for hexdump\n");
7627         } else
7628                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7629                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7630                        _dump_buf_dif);
7631 }
7632
7633 /**
7634  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7635  * @phba: pointer to lpfc hba data structure.
7636  *
7637  * This routine is invoked to perform all the necessary post initialization
7638  * setup for the device.
7639  **/
7640 static void
7641 lpfc_post_init_setup(struct lpfc_hba *phba)
7642 {
7643         struct Scsi_Host  *shost;
7644         struct lpfc_adapter_event_header adapter_event;
7645
7646         /* Get the default values for Model Name and Description */
7647         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7648
7649         /*
7650          * hba setup may have changed the hba_queue_depth so we need to
7651          * adjust the value of can_queue.
7652          */
7653         shost = pci_get_drvdata(phba->pcidev);
7654         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7655         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7656                 lpfc_setup_bg(phba, shost);
7657
7658         lpfc_host_attrib_init(shost);
7659
7660         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7661                 spin_lock_irq(shost->host_lock);
7662                 lpfc_poll_start_timer(phba);
7663                 spin_unlock_irq(shost->host_lock);
7664         }
7665
7666         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7667                         "0428 Perform SCSI scan\n");
7668         /* Send board arrival event to upper layer */
7669         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7670         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7671         fc_host_post_vendor_event(shost, fc_get_event_number(),
7672                                   sizeof(adapter_event),
7673                                   (char *) &adapter_event,
7674                                   LPFC_NL_VENDOR_ID);
7675         return;
7676 }
7677
7678 /**
7679  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7680  * @phba: pointer to lpfc hba data structure.
7681  *
7682  * This routine is invoked to set up the PCI device memory space for device
7683  * with SLI-3 interface spec.
7684  *
7685  * Return codes
7686  *      0 - successful
7687  *      other values - error
7688  **/
7689 static int
7690 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7691 {
7692         struct pci_dev *pdev = phba->pcidev;
7693         unsigned long bar0map_len, bar2map_len;
7694         int i, hbq_count;
7695         void *ptr;
7696         int error;
7697
7698         if (!pdev)
7699                 return -ENODEV;
7700
7701         /* Set the device DMA mask size */
7702         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7703         if (error)
7704                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7705         if (error)
7706                 return error;
7707         error = -ENODEV;
7708
7709         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7710          * required by each mapping.
7711          */
7712         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7713         bar0map_len = pci_resource_len(pdev, 0);
7714
7715         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7716         bar2map_len = pci_resource_len(pdev, 2);
7717
7718         /* Map HBA SLIM to a kernel virtual address. */
7719         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7720         if (!phba->slim_memmap_p) {
7721                 dev_printk(KERN_ERR, &pdev->dev,
7722                            "ioremap failed for SLIM memory.\n");
7723                 goto out;
7724         }
7725
7726         /* Map HBA Control Registers to a kernel virtual address. */
7727         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7728         if (!phba->ctrl_regs_memmap_p) {
7729                 dev_printk(KERN_ERR, &pdev->dev,
7730                            "ioremap failed for HBA control registers.\n");
7731                 goto out_iounmap_slim;
7732         }
7733
7734         /* Allocate memory for SLI-2 structures */
7735         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7736                                                &phba->slim2p.phys, GFP_KERNEL);
7737         if (!phba->slim2p.virt)
7738                 goto out_iounmap;
7739
7740         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7741         phba->mbox_ext = (phba->slim2p.virt +
7742                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7743         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7744         phba->IOCBs = (phba->slim2p.virt +
7745                        offsetof(struct lpfc_sli2_slim, IOCBs));
7746
7747         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7748                                                  lpfc_sli_hbq_size(),
7749                                                  &phba->hbqslimp.phys,
7750                                                  GFP_KERNEL);
7751         if (!phba->hbqslimp.virt)
7752                 goto out_free_slim;
7753
7754         hbq_count = lpfc_sli_hbq_count();
7755         ptr = phba->hbqslimp.virt;
7756         for (i = 0; i < hbq_count; ++i) {
7757                 phba->hbqs[i].hbq_virt = ptr;
7758                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7759                 ptr += (lpfc_hbq_defs[i]->entry_count *
7760                         sizeof(struct lpfc_hbq_entry));
7761         }
7762         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7763         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7764
7765         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7766
7767         phba->MBslimaddr = phba->slim_memmap_p;
7768         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7769         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7770         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7771         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7772
7773         return 0;
7774
7775 out_free_slim:
7776         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7777                           phba->slim2p.virt, phba->slim2p.phys);
7778 out_iounmap:
7779         iounmap(phba->ctrl_regs_memmap_p);
7780 out_iounmap_slim:
7781         iounmap(phba->slim_memmap_p);
7782 out:
7783         return error;
7784 }
7785
7786 /**
7787  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7788  * @phba: pointer to lpfc hba data structure.
7789  *
7790  * This routine is invoked to unset the PCI device memory space for device
7791  * with SLI-3 interface spec.
7792  **/
7793 static void
7794 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7795 {
7796         struct pci_dev *pdev;
7797
7798         /* Obtain PCI device reference */
7799         if (!phba->pcidev)
7800                 return;
7801         else
7802                 pdev = phba->pcidev;
7803
7804         /* Free coherent DMA memory allocated */
7805         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7806                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7807         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7808                           phba->slim2p.virt, phba->slim2p.phys);
7809
7810         /* I/O memory unmap */
7811         iounmap(phba->ctrl_regs_memmap_p);
7812         iounmap(phba->slim_memmap_p);
7813
7814         return;
7815 }
7816
7817 /**
7818  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7819  * @phba: pointer to lpfc hba data structure.
7820  *
7821  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7822  * done and check status.
7823  *
7824  * Return 0 if successful, otherwise -ENODEV.
7825  **/
7826 int
7827 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7828 {
7829         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7830         struct lpfc_register reg_data;
7831         int i, port_error = 0;
7832         uint32_t if_type;
7833
7834         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7835         memset(&reg_data, 0, sizeof(reg_data));
7836         if (!phba->sli4_hba.PSMPHRregaddr)
7837                 return -ENODEV;
7838
7839         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7840         for (i = 0; i < 3000; i++) {
7841                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7842                         &portsmphr_reg.word0) ||
7843                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7844                         /* Port has a fatal POST error, break out */
7845                         port_error = -ENODEV;
7846                         break;
7847                 }
7848                 if (LPFC_POST_STAGE_PORT_READY ==
7849                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7850                         break;
7851                 msleep(10);
7852         }
7853
7854         /*
7855          * If there was a port error during POST, then don't proceed with
7856          * other register reads as the data may not be valid.  Just exit.
7857          */
7858         if (port_error) {
7859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7860                         "1408 Port Failed POST - portsmphr=0x%x, "
7861                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7862                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7863                         portsmphr_reg.word0,
7864                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7865                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7866                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7867                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7868                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7869                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7870                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7871                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7872         } else {
7873                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7874                                 "2534 Device Info: SLIFamily=0x%x, "
7875                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7876                                 "SLIHint_2=0x%x, FT=0x%x\n",
7877                                 bf_get(lpfc_sli_intf_sli_family,
7878                                        &phba->sli4_hba.sli_intf),
7879                                 bf_get(lpfc_sli_intf_slirev,
7880                                        &phba->sli4_hba.sli_intf),
7881                                 bf_get(lpfc_sli_intf_if_type,
7882                                        &phba->sli4_hba.sli_intf),
7883                                 bf_get(lpfc_sli_intf_sli_hint1,
7884                                        &phba->sli4_hba.sli_intf),
7885                                 bf_get(lpfc_sli_intf_sli_hint2,
7886                                        &phba->sli4_hba.sli_intf),
7887                                 bf_get(lpfc_sli_intf_func_type,
7888                                        &phba->sli4_hba.sli_intf));
7889                 /*
7890                  * Check for other Port errors during the initialization
7891                  * process.  Fail the load if the port did not come up
7892                  * correctly.
7893                  */
7894                 if_type = bf_get(lpfc_sli_intf_if_type,
7895                                  &phba->sli4_hba.sli_intf);
7896                 switch (if_type) {
7897                 case LPFC_SLI_INTF_IF_TYPE_0:
7898                         phba->sli4_hba.ue_mask_lo =
7899                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7900                         phba->sli4_hba.ue_mask_hi =
7901                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7902                         uerrlo_reg.word0 =
7903                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7904                         uerrhi_reg.word0 =
7905                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7906                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7907                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7908                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7909                                                 "1422 Unrecoverable Error "
7910                                                 "Detected during POST "
7911                                                 "uerr_lo_reg=0x%x, "
7912                                                 "uerr_hi_reg=0x%x, "
7913                                                 "ue_mask_lo_reg=0x%x, "
7914                                                 "ue_mask_hi_reg=0x%x\n",
7915                                                 uerrlo_reg.word0,
7916                                                 uerrhi_reg.word0,
7917                                                 phba->sli4_hba.ue_mask_lo,
7918                                                 phba->sli4_hba.ue_mask_hi);
7919                                 port_error = -ENODEV;
7920                         }
7921                         break;
7922                 case LPFC_SLI_INTF_IF_TYPE_2:
7923                 case LPFC_SLI_INTF_IF_TYPE_6:
7924                         /* Final checks.  The port status should be clean. */
7925                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7926                                 &reg_data.word0) ||
7927                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7928                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7929                                 phba->work_status[0] =
7930                                         readl(phba->sli4_hba.u.if_type2.
7931                                               ERR1regaddr);
7932                                 phba->work_status[1] =
7933                                         readl(phba->sli4_hba.u.if_type2.
7934                                               ERR2regaddr);
7935                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7936                                         "2888 Unrecoverable port error "
7937                                         "following POST: port status reg "
7938                                         "0x%x, port_smphr reg 0x%x, "
7939                                         "error 1=0x%x, error 2=0x%x\n",
7940                                         reg_data.word0,
7941                                         portsmphr_reg.word0,
7942                                         phba->work_status[0],
7943                                         phba->work_status[1]);
7944                                 port_error = -ENODEV;
7945                         }
7946                         break;
7947                 case LPFC_SLI_INTF_IF_TYPE_1:
7948                 default:
7949                         break;
7950                 }
7951         }
7952         return port_error;
7953 }
7954
7955 /**
7956  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7957  * @phba: pointer to lpfc hba data structure.
7958  * @if_type:  The SLI4 interface type getting configured.
7959  *
7960  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7961  * memory map.
7962  **/
7963 static void
7964 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7965 {
7966         switch (if_type) {
7967         case LPFC_SLI_INTF_IF_TYPE_0:
7968                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7969                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7970                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7971                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7972                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7973                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7974                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7975                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7976                 phba->sli4_hba.SLIINTFregaddr =
7977                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7978                 break;
7979         case LPFC_SLI_INTF_IF_TYPE_2:
7980                 phba->sli4_hba.u.if_type2.EQDregaddr =
7981                         phba->sli4_hba.conf_regs_memmap_p +
7982                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7983                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7984                         phba->sli4_hba.conf_regs_memmap_p +
7985                                                 LPFC_CTL_PORT_ER1_OFFSET;
7986                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7987                         phba->sli4_hba.conf_regs_memmap_p +
7988                                                 LPFC_CTL_PORT_ER2_OFFSET;
7989                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7990                         phba->sli4_hba.conf_regs_memmap_p +
7991                                                 LPFC_CTL_PORT_CTL_OFFSET;
7992                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7993                         phba->sli4_hba.conf_regs_memmap_p +
7994                                                 LPFC_CTL_PORT_STA_OFFSET;
7995                 phba->sli4_hba.SLIINTFregaddr =
7996                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7997                 phba->sli4_hba.PSMPHRregaddr =
7998                         phba->sli4_hba.conf_regs_memmap_p +
7999                                                 LPFC_CTL_PORT_SEM_OFFSET;
8000                 phba->sli4_hba.RQDBregaddr =
8001                         phba->sli4_hba.conf_regs_memmap_p +
8002                                                 LPFC_ULP0_RQ_DOORBELL;
8003                 phba->sli4_hba.WQDBregaddr =
8004                         phba->sli4_hba.conf_regs_memmap_p +
8005                                                 LPFC_ULP0_WQ_DOORBELL;
8006                 phba->sli4_hba.CQDBregaddr =
8007                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8008                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8009                 phba->sli4_hba.MQDBregaddr =
8010                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8011                 phba->sli4_hba.BMBXregaddr =
8012                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8013                 break;
8014         case LPFC_SLI_INTF_IF_TYPE_6:
8015                 phba->sli4_hba.u.if_type2.EQDregaddr =
8016                         phba->sli4_hba.conf_regs_memmap_p +
8017                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8018                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8019                         phba->sli4_hba.conf_regs_memmap_p +
8020                                                 LPFC_CTL_PORT_ER1_OFFSET;
8021                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8022                         phba->sli4_hba.conf_regs_memmap_p +
8023                                                 LPFC_CTL_PORT_ER2_OFFSET;
8024                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8025                         phba->sli4_hba.conf_regs_memmap_p +
8026                                                 LPFC_CTL_PORT_CTL_OFFSET;
8027                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8028                         phba->sli4_hba.conf_regs_memmap_p +
8029                                                 LPFC_CTL_PORT_STA_OFFSET;
8030                 phba->sli4_hba.PSMPHRregaddr =
8031                         phba->sli4_hba.conf_regs_memmap_p +
8032                                                 LPFC_CTL_PORT_SEM_OFFSET;
8033                 phba->sli4_hba.BMBXregaddr =
8034                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8035                 break;
8036         case LPFC_SLI_INTF_IF_TYPE_1:
8037         default:
8038                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8039                            "FATAL - unsupported SLI4 interface type - %d\n",
8040                            if_type);
8041                 break;
8042         }
8043 }
8044
8045 /**
8046  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8047  * @phba: pointer to lpfc hba data structure.
8048  *
8049  * This routine is invoked to set up SLI4 BAR1 register memory map.
8050  **/
8051 static void
8052 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8053 {
8054         switch (if_type) {
8055         case LPFC_SLI_INTF_IF_TYPE_0:
8056                 phba->sli4_hba.PSMPHRregaddr =
8057                         phba->sli4_hba.ctrl_regs_memmap_p +
8058                         LPFC_SLIPORT_IF0_SMPHR;
8059                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8060                         LPFC_HST_ISR0;
8061                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8062                         LPFC_HST_IMR0;
8063                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8064                         LPFC_HST_ISCR0;
8065                 break;
8066         case LPFC_SLI_INTF_IF_TYPE_6:
8067                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8068                         LPFC_IF6_RQ_DOORBELL;
8069                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8070                         LPFC_IF6_WQ_DOORBELL;
8071                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8072                         LPFC_IF6_CQ_DOORBELL;
8073                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8074                         LPFC_IF6_EQ_DOORBELL;
8075                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8076                         LPFC_IF6_MQ_DOORBELL;
8077                 break;
8078         case LPFC_SLI_INTF_IF_TYPE_2:
8079         case LPFC_SLI_INTF_IF_TYPE_1:
8080         default:
8081                 dev_err(&phba->pcidev->dev,
8082                            "FATAL - unsupported SLI4 interface type - %d\n",
8083                            if_type);
8084                 break;
8085         }
8086 }
8087
8088 /**
8089  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8090  * @phba: pointer to lpfc hba data structure.
8091  * @vf: virtual function number
8092  *
8093  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8094  * based on the given viftual function number, @vf.
8095  *
8096  * Return 0 if successful, otherwise -ENODEV.
8097  **/
8098 static int
8099 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8100 {
8101         if (vf > LPFC_VIR_FUNC_MAX)
8102                 return -ENODEV;
8103
8104         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8105                                 vf * LPFC_VFR_PAGE_SIZE +
8106                                         LPFC_ULP0_RQ_DOORBELL);
8107         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8108                                 vf * LPFC_VFR_PAGE_SIZE +
8109                                         LPFC_ULP0_WQ_DOORBELL);
8110         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8111                                 vf * LPFC_VFR_PAGE_SIZE +
8112                                         LPFC_EQCQ_DOORBELL);
8113         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8114         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8115                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8116         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8117                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8118         return 0;
8119 }
8120
8121 /**
8122  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8123  * @phba: pointer to lpfc hba data structure.
8124  *
8125  * This routine is invoked to create the bootstrap mailbox
8126  * region consistent with the SLI-4 interface spec.  This
8127  * routine allocates all memory necessary to communicate
8128  * mailbox commands to the port and sets up all alignment
8129  * needs.  No locks are expected to be held when calling
8130  * this routine.
8131  *
8132  * Return codes
8133  *      0 - successful
8134  *      -ENOMEM - could not allocated memory.
8135  **/
8136 static int
8137 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8138 {
8139         uint32_t bmbx_size;
8140         struct lpfc_dmabuf *dmabuf;
8141         struct dma_address *dma_address;
8142         uint32_t pa_addr;
8143         uint64_t phys_addr;
8144
8145         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8146         if (!dmabuf)
8147                 return -ENOMEM;
8148
8149         /*
8150          * The bootstrap mailbox region is comprised of 2 parts
8151          * plus an alignment restriction of 16 bytes.
8152          */
8153         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8154         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8155                                           &dmabuf->phys, GFP_KERNEL);
8156         if (!dmabuf->virt) {
8157                 kfree(dmabuf);
8158                 return -ENOMEM;
8159         }
8160
8161         /*
8162          * Initialize the bootstrap mailbox pointers now so that the register
8163          * operations are simple later.  The mailbox dma address is required
8164          * to be 16-byte aligned.  Also align the virtual memory as each
8165          * maibox is copied into the bmbx mailbox region before issuing the
8166          * command to the port.
8167          */
8168         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8169         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8170
8171         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8172                                               LPFC_ALIGN_16_BYTE);
8173         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8174                                               LPFC_ALIGN_16_BYTE);
8175
8176         /*
8177          * Set the high and low physical addresses now.  The SLI4 alignment
8178          * requirement is 16 bytes and the mailbox is posted to the port
8179          * as two 30-bit addresses.  The other data is a bit marking whether
8180          * the 30-bit address is the high or low address.
8181          * Upcast bmbx aphys to 64bits so shift instruction compiles
8182          * clean on 32 bit machines.
8183          */
8184         dma_address = &phba->sli4_hba.bmbx.dma_address;
8185         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8186         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8187         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8188                                            LPFC_BMBX_BIT1_ADDR_HI);
8189
8190         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8191         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8192                                            LPFC_BMBX_BIT1_ADDR_LO);
8193         return 0;
8194 }
8195
8196 /**
8197  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8198  * @phba: pointer to lpfc hba data structure.
8199  *
8200  * This routine is invoked to teardown the bootstrap mailbox
8201  * region and release all host resources. This routine requires
8202  * the caller to ensure all mailbox commands recovered, no
8203  * additional mailbox comands are sent, and interrupts are disabled
8204  * before calling this routine.
8205  *
8206  **/
8207 static void
8208 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8209 {
8210         dma_free_coherent(&phba->pcidev->dev,
8211                           phba->sli4_hba.bmbx.bmbx_size,
8212                           phba->sli4_hba.bmbx.dmabuf->virt,
8213                           phba->sli4_hba.bmbx.dmabuf->phys);
8214
8215         kfree(phba->sli4_hba.bmbx.dmabuf);
8216         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8217 }
8218
8219 /**
8220  * lpfc_sli4_read_config - Get the config parameters.
8221  * @phba: pointer to lpfc hba data structure.
8222  *
8223  * This routine is invoked to read the configuration parameters from the HBA.
8224  * The configuration parameters are used to set the base and maximum values
8225  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8226  * allocation for the port.
8227  *
8228  * Return codes
8229  *      0 - successful
8230  *      -ENOMEM - No available memory
8231  *      -EIO - The mailbox failed to complete successfully.
8232  **/
8233 int
8234 lpfc_sli4_read_config(struct lpfc_hba *phba)
8235 {
8236         LPFC_MBOXQ_t *pmb;
8237         struct lpfc_mbx_read_config *rd_config;
8238         union  lpfc_sli4_cfg_shdr *shdr;
8239         uint32_t shdr_status, shdr_add_status;
8240         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8241         struct lpfc_rsrc_desc_fcfcoe *desc;
8242         char *pdesc_0;
8243         uint16_t forced_link_speed;
8244         uint32_t if_type, qmin;
8245         int length, i, rc = 0, rc2;
8246
8247         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8248         if (!pmb) {
8249                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8250                                 "2011 Unable to allocate memory for issuing "
8251                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8252                 return -ENOMEM;
8253         }
8254
8255         lpfc_read_config(phba, pmb);
8256
8257         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8258         if (rc != MBX_SUCCESS) {
8259                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8260                         "2012 Mailbox failed , mbxCmd x%x "
8261                         "READ_CONFIG, mbxStatus x%x\n",
8262                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8263                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8264                 rc = -EIO;
8265         } else {
8266                 rd_config = &pmb->u.mqe.un.rd_config;
8267                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8268                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8269                         phba->sli4_hba.lnk_info.lnk_tp =
8270                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8271                         phba->sli4_hba.lnk_info.lnk_no =
8272                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8273                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8274                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8275                                         phba->sli4_hba.lnk_info.lnk_tp,
8276                                         phba->sli4_hba.lnk_info.lnk_no);
8277                 } else
8278                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8279                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8280                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8281                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8282                         phba->bbcredit_support = 1;
8283                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8284                 }
8285
8286                 phba->sli4_hba.conf_trunk =
8287                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8288                 phba->sli4_hba.extents_in_use =
8289                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8290                 phba->sli4_hba.max_cfg_param.max_xri =
8291                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8292                 phba->sli4_hba.max_cfg_param.xri_base =
8293                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8294                 phba->sli4_hba.max_cfg_param.max_vpi =
8295                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8296                 /* Limit the max we support */
8297                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8298                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8299                 phba->sli4_hba.max_cfg_param.vpi_base =
8300                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8301                 phba->sli4_hba.max_cfg_param.max_rpi =
8302                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8303                 phba->sli4_hba.max_cfg_param.rpi_base =
8304                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8305                 phba->sli4_hba.max_cfg_param.max_vfi =
8306                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8307                 phba->sli4_hba.max_cfg_param.vfi_base =
8308                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8309                 phba->sli4_hba.max_cfg_param.max_fcfi =
8310                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8311                 phba->sli4_hba.max_cfg_param.max_eq =
8312                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8313                 phba->sli4_hba.max_cfg_param.max_rq =
8314                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8315                 phba->sli4_hba.max_cfg_param.max_wq =
8316                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8317                 phba->sli4_hba.max_cfg_param.max_cq =
8318                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8319                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8320                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8321                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8322                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8323                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8324                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8325                 phba->max_vports = phba->max_vpi;
8326                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8327                                 "2003 cfg params Extents? %d "
8328                                 "XRI(B:%d M:%d), "
8329                                 "VPI(B:%d M:%d) "
8330                                 "VFI(B:%d M:%d) "
8331                                 "RPI(B:%d M:%d) "
8332                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8333                                 phba->sli4_hba.extents_in_use,
8334                                 phba->sli4_hba.max_cfg_param.xri_base,
8335                                 phba->sli4_hba.max_cfg_param.max_xri,
8336                                 phba->sli4_hba.max_cfg_param.vpi_base,
8337                                 phba->sli4_hba.max_cfg_param.max_vpi,
8338                                 phba->sli4_hba.max_cfg_param.vfi_base,
8339                                 phba->sli4_hba.max_cfg_param.max_vfi,
8340                                 phba->sli4_hba.max_cfg_param.rpi_base,
8341                                 phba->sli4_hba.max_cfg_param.max_rpi,
8342                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8343                                 phba->sli4_hba.max_cfg_param.max_eq,
8344                                 phba->sli4_hba.max_cfg_param.max_cq,
8345                                 phba->sli4_hba.max_cfg_param.max_wq,
8346                                 phba->sli4_hba.max_cfg_param.max_rq);
8347
8348                 /*
8349                  * Calculate queue resources based on how
8350                  * many WQ/CQ/EQs are available.
8351                  */
8352                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8353                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8354                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8355                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8356                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8357                 /*
8358                  * Whats left after this can go toward NVME / FCP.
8359                  * The minus 4 accounts for ELS, NVME LS, MBOX
8360                  * plus one extra. When configured for
8361                  * NVMET, FCP io channel WQs are not created.
8362                  */
8363                 qmin -= 4;
8364
8365                 /* If NVME is configured, double the number of CQ/WQs needed */
8366                 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
8367                     !phba->nvmet_support)
8368                         qmin /= 2;
8369
8370                 /* Check to see if there is enough for NVME */
8371                 if ((phba->cfg_irq_chann > qmin) ||
8372                     (phba->cfg_hdw_queue > qmin)) {
8373                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8374                                         "2005 Reducing Queues: "
8375                                         "WQ %d CQ %d EQ %d: min %d: "
8376                                         "IRQ %d HDWQ %d\n",
8377                                         phba->sli4_hba.max_cfg_param.max_wq,
8378                                         phba->sli4_hba.max_cfg_param.max_cq,
8379                                         phba->sli4_hba.max_cfg_param.max_eq,
8380                                         qmin, phba->cfg_irq_chann,
8381                                         phba->cfg_hdw_queue);
8382
8383                         if (phba->cfg_irq_chann > qmin)
8384                                 phba->cfg_irq_chann = qmin;
8385                         if (phba->cfg_hdw_queue > qmin)
8386                                 phba->cfg_hdw_queue = qmin;
8387                 }
8388         }
8389
8390         if (rc)
8391                 goto read_cfg_out;
8392
8393         /* Update link speed if forced link speed is supported */
8394         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8395         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8396                 forced_link_speed =
8397                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8398                 if (forced_link_speed) {
8399                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8400
8401                         switch (forced_link_speed) {
8402                         case LINK_SPEED_1G:
8403                                 phba->cfg_link_speed =
8404                                         LPFC_USER_LINK_SPEED_1G;
8405                                 break;
8406                         case LINK_SPEED_2G:
8407                                 phba->cfg_link_speed =
8408                                         LPFC_USER_LINK_SPEED_2G;
8409                                 break;
8410                         case LINK_SPEED_4G:
8411                                 phba->cfg_link_speed =
8412                                         LPFC_USER_LINK_SPEED_4G;
8413                                 break;
8414                         case LINK_SPEED_8G:
8415                                 phba->cfg_link_speed =
8416                                         LPFC_USER_LINK_SPEED_8G;
8417                                 break;
8418                         case LINK_SPEED_10G:
8419                                 phba->cfg_link_speed =
8420                                         LPFC_USER_LINK_SPEED_10G;
8421                                 break;
8422                         case LINK_SPEED_16G:
8423                                 phba->cfg_link_speed =
8424                                         LPFC_USER_LINK_SPEED_16G;
8425                                 break;
8426                         case LINK_SPEED_32G:
8427                                 phba->cfg_link_speed =
8428                                         LPFC_USER_LINK_SPEED_32G;
8429                                 break;
8430                         case LINK_SPEED_64G:
8431                                 phba->cfg_link_speed =
8432                                         LPFC_USER_LINK_SPEED_64G;
8433                                 break;
8434                         case 0xffff:
8435                                 phba->cfg_link_speed =
8436                                         LPFC_USER_LINK_SPEED_AUTO;
8437                                 break;
8438                         default:
8439                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8440                                                 "0047 Unrecognized link "
8441                                                 "speed : %d\n",
8442                                                 forced_link_speed);
8443                                 phba->cfg_link_speed =
8444                                         LPFC_USER_LINK_SPEED_AUTO;
8445                         }
8446                 }
8447         }
8448
8449         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8450         length = phba->sli4_hba.max_cfg_param.max_xri -
8451                         lpfc_sli4_get_els_iocb_cnt(phba);
8452         if (phba->cfg_hba_queue_depth > length) {
8453                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8454                                 "3361 HBA queue depth changed from %d to %d\n",
8455                                 phba->cfg_hba_queue_depth, length);
8456                 phba->cfg_hba_queue_depth = length;
8457         }
8458
8459         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8460             LPFC_SLI_INTF_IF_TYPE_2)
8461                 goto read_cfg_out;
8462
8463         /* get the pf# and vf# for SLI4 if_type 2 port */
8464         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8465                   sizeof(struct lpfc_sli4_cfg_mhdr));
8466         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8467                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8468                          length, LPFC_SLI4_MBX_EMBED);
8469
8470         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8471         shdr = (union lpfc_sli4_cfg_shdr *)
8472                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8473         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8474         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8475         if (rc2 || shdr_status || shdr_add_status) {
8476                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8477                                 "3026 Mailbox failed , mbxCmd x%x "
8478                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8479                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8480                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8481                 goto read_cfg_out;
8482         }
8483
8484         /* search for fc_fcoe resrouce descriptor */
8485         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8486
8487         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8488         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8489         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8490         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8491                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8492         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8493                 goto read_cfg_out;
8494
8495         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8496                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8497                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8498                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8499                         phba->sli4_hba.iov.pf_number =
8500                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8501                         phba->sli4_hba.iov.vf_number =
8502                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8503                         break;
8504                 }
8505         }
8506
8507         if (i < LPFC_RSRC_DESC_MAX_NUM)
8508                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8509                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8510                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8511                                 phba->sli4_hba.iov.vf_number);
8512         else
8513                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8514                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8515                                 "Resource Descriptor:x%x\n",
8516                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8517
8518 read_cfg_out:
8519         mempool_free(pmb, phba->mbox_mem_pool);
8520         return rc;
8521 }
8522
8523 /**
8524  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8525  * @phba: pointer to lpfc hba data structure.
8526  *
8527  * This routine is invoked to setup the port-side endian order when
8528  * the port if_type is 0.  This routine has no function for other
8529  * if_types.
8530  *
8531  * Return codes
8532  *      0 - successful
8533  *      -ENOMEM - No available memory
8534  *      -EIO - The mailbox failed to complete successfully.
8535  **/
8536 static int
8537 lpfc_setup_endian_order(struct lpfc_hba *phba)
8538 {
8539         LPFC_MBOXQ_t *mboxq;
8540         uint32_t if_type, rc = 0;
8541         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8542                                       HOST_ENDIAN_HIGH_WORD1};
8543
8544         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8545         switch (if_type) {
8546         case LPFC_SLI_INTF_IF_TYPE_0:
8547                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8548                                                        GFP_KERNEL);
8549                 if (!mboxq) {
8550                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8551                                         "0492 Unable to allocate memory for "
8552                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8553                                         "command\n");
8554                         return -ENOMEM;
8555                 }
8556
8557                 /*
8558                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8559                  * two words to contain special data values and no other data.
8560                  */
8561                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8562                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8563                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8564                 if (rc != MBX_SUCCESS) {
8565                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8566                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8567                                         "failed with status x%x\n",
8568                                         rc);
8569                         rc = -EIO;
8570                 }
8571                 mempool_free(mboxq, phba->mbox_mem_pool);
8572                 break;
8573         case LPFC_SLI_INTF_IF_TYPE_6:
8574         case LPFC_SLI_INTF_IF_TYPE_2:
8575         case LPFC_SLI_INTF_IF_TYPE_1:
8576         default:
8577                 break;
8578         }
8579         return rc;
8580 }
8581
8582 /**
8583  * lpfc_sli4_queue_verify - Verify and update EQ counts
8584  * @phba: pointer to lpfc hba data structure.
8585  *
8586  * This routine is invoked to check the user settable queue counts for EQs.
8587  * After this routine is called the counts will be set to valid values that
8588  * adhere to the constraints of the system's interrupt vectors and the port's
8589  * queue resources.
8590  *
8591  * Return codes
8592  *      0 - successful
8593  *      -ENOMEM - No available memory
8594  **/
8595 static int
8596 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8597 {
8598         /*
8599          * Sanity check for configured queue parameters against the run-time
8600          * device parameters
8601          */
8602
8603         if (phba->nvmet_support) {
8604                 if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8605                         phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8606         }
8607         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8608                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8609
8610         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8611                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8612                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8613                         phba->cfg_nvmet_mrq);
8614
8615         /* Get EQ depth from module parameter, fake the default for now */
8616         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8617         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8618
8619         /* Get CQ depth from module parameter, fake the default for now */
8620         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8621         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8622         return 0;
8623 }
8624
8625 static int
8626 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8627 {
8628         struct lpfc_queue *qdesc;
8629
8630         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8631                                       phba->sli4_hba.cq_esize,
8632                                       LPFC_CQE_EXP_COUNT);
8633         if (!qdesc) {
8634                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8635                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8636                                 wqidx);
8637                 return 1;
8638         }
8639         qdesc->qe_valid = 1;
8640         qdesc->hdwq = wqidx;
8641         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8642         phba->sli4_hba.hdwq[wqidx].nvme_cq = qdesc;
8643
8644         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8645                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8646         if (!qdesc) {
8647                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8648                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8649                                 wqidx);
8650                 return 1;
8651         }
8652         qdesc->hdwq = wqidx;
8653         qdesc->chann = wqidx;
8654         phba->sli4_hba.hdwq[wqidx].nvme_wq = qdesc;
8655         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8656         return 0;
8657 }
8658
8659 static int
8660 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8661 {
8662         struct lpfc_queue *qdesc;
8663         uint32_t wqesize;
8664
8665         /* Create Fast Path FCP CQs */
8666         if (phba->enab_exp_wqcq_pages)
8667                 /* Increase the CQ size when WQEs contain an embedded cdb */
8668                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8669                                               phba->sli4_hba.cq_esize,
8670                                               LPFC_CQE_EXP_COUNT);
8671
8672         else
8673                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8674                                               phba->sli4_hba.cq_esize,
8675                                               phba->sli4_hba.cq_ecount);
8676         if (!qdesc) {
8677                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8678                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8679                 return 1;
8680         }
8681         qdesc->qe_valid = 1;
8682         qdesc->hdwq = wqidx;
8683         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8684         phba->sli4_hba.hdwq[wqidx].fcp_cq = qdesc;
8685
8686         /* Create Fast Path FCP WQs */
8687         if (phba->enab_exp_wqcq_pages) {
8688                 /* Increase the WQ size when WQEs contain an embedded cdb */
8689                 wqesize = (phba->fcp_embed_io) ?
8690                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8691                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8692                                               wqesize,
8693                                               LPFC_WQE_EXP_COUNT);
8694         } else
8695                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8696                                               phba->sli4_hba.wq_esize,
8697                                               phba->sli4_hba.wq_ecount);
8698
8699         if (!qdesc) {
8700                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8701                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8702                                 wqidx);
8703                 return 1;
8704         }
8705         qdesc->hdwq = wqidx;
8706         qdesc->chann = wqidx;
8707         phba->sli4_hba.hdwq[wqidx].fcp_wq = qdesc;
8708         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8709         return 0;
8710 }
8711
8712 /**
8713  * lpfc_sli4_queue_create - Create all the SLI4 queues
8714  * @phba: pointer to lpfc hba data structure.
8715  *
8716  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8717  * operation. For each SLI4 queue type, the parameters such as queue entry
8718  * count (queue depth) shall be taken from the module parameter. For now,
8719  * we just use some constant number as place holder.
8720  *
8721  * Return codes
8722  *      0 - successful
8723  *      -ENOMEM - No availble memory
8724  *      -EIO - The mailbox failed to complete successfully.
8725  **/
8726 int
8727 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8728 {
8729         struct lpfc_queue *qdesc;
8730         int idx, eqidx;
8731         struct lpfc_sli4_hdw_queue *qp;
8732         struct lpfc_eq_intr_info *eqi;
8733
8734         /*
8735          * Create HBA Record arrays.
8736          * Both NVME and FCP will share that same vectors / EQs
8737          */
8738         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8739         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8740         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8741         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8742         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8743         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8744         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8745         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8746         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8747         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8748
8749         if (!phba->sli4_hba.hdwq) {
8750                 phba->sli4_hba.hdwq = kcalloc(
8751                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8752                         GFP_KERNEL);
8753                 if (!phba->sli4_hba.hdwq) {
8754                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8755                                         "6427 Failed allocate memory for "
8756                                         "fast-path Hardware Queue array\n");
8757                         goto out_error;
8758                 }
8759                 /* Prepare hardware queues to take IO buffers */
8760                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8761                         qp = &phba->sli4_hba.hdwq[idx];
8762                         spin_lock_init(&qp->io_buf_list_get_lock);
8763                         spin_lock_init(&qp->io_buf_list_put_lock);
8764                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8765                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8766                         qp->get_io_bufs = 0;
8767                         qp->put_io_bufs = 0;
8768                         qp->total_io_bufs = 0;
8769                         spin_lock_init(&qp->abts_scsi_buf_list_lock);
8770                         INIT_LIST_HEAD(&qp->lpfc_abts_scsi_buf_list);
8771                         qp->abts_scsi_io_bufs = 0;
8772                         spin_lock_init(&qp->abts_nvme_buf_list_lock);
8773                         INIT_LIST_HEAD(&qp->lpfc_abts_nvme_buf_list);
8774                         qp->abts_nvme_io_bufs = 0;
8775                 }
8776         }
8777
8778         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8779                 if (phba->nvmet_support) {
8780                         phba->sli4_hba.nvmet_cqset = kcalloc(
8781                                         phba->cfg_nvmet_mrq,
8782                                         sizeof(struct lpfc_queue *),
8783                                         GFP_KERNEL);
8784                         if (!phba->sli4_hba.nvmet_cqset) {
8785                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786                                         "3121 Fail allocate memory for "
8787                                         "fast-path CQ set array\n");
8788                                 goto out_error;
8789                         }
8790                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8791                                         phba->cfg_nvmet_mrq,
8792                                         sizeof(struct lpfc_queue *),
8793                                         GFP_KERNEL);
8794                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8795                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8796                                         "3122 Fail allocate memory for "
8797                                         "fast-path RQ set hdr array\n");
8798                                 goto out_error;
8799                         }
8800                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8801                                         phba->cfg_nvmet_mrq,
8802                                         sizeof(struct lpfc_queue *),
8803                                         GFP_KERNEL);
8804                         if (!phba->sli4_hba.nvmet_mrq_data) {
8805                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8806                                         "3124 Fail allocate memory for "
8807                                         "fast-path RQ set data array\n");
8808                                 goto out_error;
8809                         }
8810                 }
8811         }
8812
8813         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8814
8815         /* Create HBA Event Queues (EQs) */
8816         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8817                 /*
8818                  * If there are more Hardware Queues than available
8819                  * CQs, multiple Hardware Queues may share a common EQ.
8820                  */
8821                 if (idx >= phba->cfg_irq_chann) {
8822                         /* Share an existing EQ */
8823                         eqidx = lpfc_find_eq_handle(phba, idx);
8824                         phba->sli4_hba.hdwq[idx].hba_eq =
8825                                 phba->sli4_hba.hdwq[eqidx].hba_eq;
8826                         continue;
8827                 }
8828                 /* Create an EQ */
8829                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8830                                               phba->sli4_hba.eq_esize,
8831                                               phba->sli4_hba.eq_ecount);
8832                 if (!qdesc) {
8833                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8834                                         "0497 Failed allocate EQ (%d)\n", idx);
8835                         goto out_error;
8836                 }
8837                 qdesc->qe_valid = 1;
8838                 qdesc->hdwq = idx;
8839
8840                 /* Save the CPU this EQ is affinitised to */
8841                 eqidx = lpfc_find_eq_handle(phba, idx);
8842                 qdesc->chann = lpfc_find_cpu_handle(phba, eqidx,
8843                                                     LPFC_FIND_BY_EQ);
8844                 phba->sli4_hba.hdwq[idx].hba_eq = qdesc;
8845                 qdesc->last_cpu = qdesc->chann;
8846                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8847                 list_add(&qdesc->cpu_list, &eqi->list);
8848         }
8849
8850
8851         /* Allocate SCSI SLI4 CQ/WQs */
8852         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8853                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8854                         goto out_error;
8855         }
8856
8857         /* Allocate NVME SLI4 CQ/WQs */
8858         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8859                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8860                         if (lpfc_alloc_nvme_wq_cq(phba, idx))
8861                                 goto out_error;
8862                 }
8863
8864                 if (phba->nvmet_support) {
8865                         for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8866                                 qdesc = lpfc_sli4_queue_alloc(
8867                                                       phba,
8868                                                       LPFC_DEFAULT_PAGE_SIZE,
8869                                                       phba->sli4_hba.cq_esize,
8870                                                       phba->sli4_hba.cq_ecount);
8871                                 if (!qdesc) {
8872                                         lpfc_printf_log(
8873                                                 phba, KERN_ERR, LOG_INIT,
8874                                                 "3142 Failed allocate NVME "
8875                                                 "CQ Set (%d)\n", idx);
8876                                         goto out_error;
8877                                 }
8878                                 qdesc->qe_valid = 1;
8879                                 qdesc->hdwq = idx;
8880                                 qdesc->chann = idx;
8881                                 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8882                         }
8883                 }
8884         }
8885
8886         /*
8887          * Create Slow Path Completion Queues (CQs)
8888          */
8889
8890         /* Create slow-path Mailbox Command Complete Queue */
8891         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8892                                       phba->sli4_hba.cq_esize,
8893                                       phba->sli4_hba.cq_ecount);
8894         if (!qdesc) {
8895                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8896                                 "0500 Failed allocate slow-path mailbox CQ\n");
8897                 goto out_error;
8898         }
8899         qdesc->qe_valid = 1;
8900         phba->sli4_hba.mbx_cq = qdesc;
8901
8902         /* Create slow-path ELS Complete Queue */
8903         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8904                                       phba->sli4_hba.cq_esize,
8905                                       phba->sli4_hba.cq_ecount);
8906         if (!qdesc) {
8907                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8908                                 "0501 Failed allocate slow-path ELS CQ\n");
8909                 goto out_error;
8910         }
8911         qdesc->qe_valid = 1;
8912         qdesc->chann = 0;
8913         phba->sli4_hba.els_cq = qdesc;
8914
8915
8916         /*
8917          * Create Slow Path Work Queues (WQs)
8918          */
8919
8920         /* Create Mailbox Command Queue */
8921
8922         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8923                                       phba->sli4_hba.mq_esize,
8924                                       phba->sli4_hba.mq_ecount);
8925         if (!qdesc) {
8926                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8927                                 "0505 Failed allocate slow-path MQ\n");
8928                 goto out_error;
8929         }
8930         qdesc->chann = 0;
8931         phba->sli4_hba.mbx_wq = qdesc;
8932
8933         /*
8934          * Create ELS Work Queues
8935          */
8936
8937         /* Create slow-path ELS Work Queue */
8938         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8939                                       phba->sli4_hba.wq_esize,
8940                                       phba->sli4_hba.wq_ecount);
8941         if (!qdesc) {
8942                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8943                                 "0504 Failed allocate slow-path ELS WQ\n");
8944                 goto out_error;
8945         }
8946         qdesc->chann = 0;
8947         phba->sli4_hba.els_wq = qdesc;
8948         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8949
8950         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8951                 /* Create NVME LS Complete Queue */
8952                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8953                                               phba->sli4_hba.cq_esize,
8954                                               phba->sli4_hba.cq_ecount);
8955                 if (!qdesc) {
8956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8957                                         "6079 Failed allocate NVME LS CQ\n");
8958                         goto out_error;
8959                 }
8960                 qdesc->chann = 0;
8961                 qdesc->qe_valid = 1;
8962                 phba->sli4_hba.nvmels_cq = qdesc;
8963
8964                 /* Create NVME LS Work Queue */
8965                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8966                                               phba->sli4_hba.wq_esize,
8967                                               phba->sli4_hba.wq_ecount);
8968                 if (!qdesc) {
8969                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8970                                         "6080 Failed allocate NVME LS WQ\n");
8971                         goto out_error;
8972                 }
8973                 qdesc->chann = 0;
8974                 phba->sli4_hba.nvmels_wq = qdesc;
8975                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8976         }
8977
8978         /*
8979          * Create Receive Queue (RQ)
8980          */
8981
8982         /* Create Receive Queue for header */
8983         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8984                                       phba->sli4_hba.rq_esize,
8985                                       phba->sli4_hba.rq_ecount);
8986         if (!qdesc) {
8987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8988                                 "0506 Failed allocate receive HRQ\n");
8989                 goto out_error;
8990         }
8991         phba->sli4_hba.hdr_rq = qdesc;
8992
8993         /* Create Receive Queue for data */
8994         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8995                                       phba->sli4_hba.rq_esize,
8996                                       phba->sli4_hba.rq_ecount);
8997         if (!qdesc) {
8998                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8999                                 "0507 Failed allocate receive DRQ\n");
9000                 goto out_error;
9001         }
9002         phba->sli4_hba.dat_rq = qdesc;
9003
9004         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9005             phba->nvmet_support) {
9006                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9007                         /* Create NVMET Receive Queue for header */
9008                         qdesc = lpfc_sli4_queue_alloc(phba,
9009                                                       LPFC_DEFAULT_PAGE_SIZE,
9010                                                       phba->sli4_hba.rq_esize,
9011                                                       LPFC_NVMET_RQE_DEF_COUNT);
9012                         if (!qdesc) {
9013                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9014                                                 "3146 Failed allocate "
9015                                                 "receive HRQ\n");
9016                                 goto out_error;
9017                         }
9018                         qdesc->hdwq = idx;
9019                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9020
9021                         /* Only needed for header of RQ pair */
9022                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
9023                                               GFP_KERNEL);
9024                         if (qdesc->rqbp == NULL) {
9025                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9026                                                 "6131 Failed allocate "
9027                                                 "Header RQBP\n");
9028                                 goto out_error;
9029                         }
9030
9031                         /* Put list in known state in case driver load fails. */
9032                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9033
9034                         /* Create NVMET Receive Queue for data */
9035                         qdesc = lpfc_sli4_queue_alloc(phba,
9036                                                       LPFC_DEFAULT_PAGE_SIZE,
9037                                                       phba->sli4_hba.rq_esize,
9038                                                       LPFC_NVMET_RQE_DEF_COUNT);
9039                         if (!qdesc) {
9040                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9041                                                 "3156 Failed allocate "
9042                                                 "receive DRQ\n");
9043                                 goto out_error;
9044                         }
9045                         qdesc->hdwq = idx;
9046                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9047                 }
9048         }
9049
9050 #if defined(BUILD_NVME)
9051         /* Clear NVME stats */
9052         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9053                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9054                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9055                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9056                 }
9057         }
9058 #endif
9059
9060         /* Clear SCSI stats */
9061         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9062                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9063                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9064                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9065                 }
9066         }
9067
9068         return 0;
9069
9070 out_error:
9071         lpfc_sli4_queue_destroy(phba);
9072         return -ENOMEM;
9073 }
9074
9075 static inline void
9076 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9077 {
9078         if (*qp != NULL) {
9079                 lpfc_sli4_queue_free(*qp);
9080                 *qp = NULL;
9081         }
9082 }
9083
9084 static inline void
9085 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9086 {
9087         int idx;
9088
9089         if (*qs == NULL)
9090                 return;
9091
9092         for (idx = 0; idx < max; idx++)
9093                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9094
9095         kfree(*qs);
9096         *qs = NULL;
9097 }
9098
9099 static inline void
9100 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9101 {
9102         struct lpfc_sli4_hdw_queue *hdwq;
9103         uint32_t idx;
9104
9105         hdwq = phba->sli4_hba.hdwq;
9106         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9107                 if (idx < phba->cfg_irq_chann)
9108                         lpfc_sli4_queue_free(hdwq[idx].hba_eq);
9109                 hdwq[idx].hba_eq = NULL;
9110
9111                 lpfc_sli4_queue_free(hdwq[idx].fcp_cq);
9112                 lpfc_sli4_queue_free(hdwq[idx].nvme_cq);
9113                 lpfc_sli4_queue_free(hdwq[idx].fcp_wq);
9114                 lpfc_sli4_queue_free(hdwq[idx].nvme_wq);
9115                 hdwq[idx].fcp_cq = NULL;
9116                 hdwq[idx].nvme_cq = NULL;
9117                 hdwq[idx].fcp_wq = NULL;
9118                 hdwq[idx].nvme_wq = NULL;
9119         }
9120 }
9121
9122 /**
9123  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9124  * @phba: pointer to lpfc hba data structure.
9125  *
9126  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9127  * operation.
9128  *
9129  * Return codes
9130  *      0 - successful
9131  *      -ENOMEM - No available memory
9132  *      -EIO - The mailbox failed to complete successfully.
9133  **/
9134 void
9135 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9136 {
9137         /* Release HBA eqs */
9138         if (phba->sli4_hba.hdwq)
9139                 lpfc_sli4_release_hdwq(phba);
9140
9141         if (phba->nvmet_support) {
9142                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9143                                          phba->cfg_nvmet_mrq);
9144
9145                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9146                                          phba->cfg_nvmet_mrq);
9147                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9148                                          phba->cfg_nvmet_mrq);
9149         }
9150
9151         /* Release mailbox command work queue */
9152         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9153
9154         /* Release ELS work queue */
9155         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9156
9157         /* Release ELS work queue */
9158         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9159
9160         /* Release unsolicited receive queue */
9161         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9162         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9163
9164         /* Release ELS complete queue */
9165         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9166
9167         /* Release NVME LS complete queue */
9168         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9169
9170         /* Release mailbox command complete queue */
9171         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9172
9173         /* Everything on this list has been freed */
9174         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9175 }
9176
9177 int
9178 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9179 {
9180         struct lpfc_rqb *rqbp;
9181         struct lpfc_dmabuf *h_buf;
9182         struct rqb_dmabuf *rqb_buffer;
9183
9184         rqbp = rq->rqbp;
9185         while (!list_empty(&rqbp->rqb_buffer_list)) {
9186                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9187                                  struct lpfc_dmabuf, list);
9188
9189                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9190                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9191                 rqbp->buffer_count--;
9192         }
9193         return 1;
9194 }
9195
9196 static int
9197 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9198         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9199         int qidx, uint32_t qtype)
9200 {
9201         struct lpfc_sli_ring *pring;
9202         int rc;
9203
9204         if (!eq || !cq || !wq) {
9205                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9206                         "6085 Fast-path %s (%d) not allocated\n",
9207                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9208                 return -ENOMEM;
9209         }
9210
9211         /* create the Cq first */
9212         rc = lpfc_cq_create(phba, cq, eq,
9213                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9214         if (rc) {
9215                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9216                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9217                         qidx, (uint32_t)rc);
9218                 return rc;
9219         }
9220
9221         if (qtype != LPFC_MBOX) {
9222                 /* Setup cq_map for fast lookup */
9223                 if (cq_map)
9224                         *cq_map = cq->queue_id;
9225
9226                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9227                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9228                         qidx, cq->queue_id, qidx, eq->queue_id);
9229
9230                 /* create the wq */
9231                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9232                 if (rc) {
9233                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9234                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9235                                 qidx, (uint32_t)rc);
9236                         /* no need to tear down cq - caller will do so */
9237                         return rc;
9238                 }
9239
9240                 /* Bind this CQ/WQ to the NVME ring */
9241                 pring = wq->pring;
9242                 pring->sli.sli4.wqp = (void *)wq;
9243                 cq->pring = pring;
9244
9245                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9246                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9247                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9248         } else {
9249                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9250                 if (rc) {
9251                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9252                                 "0539 Failed setup of slow-path MQ: "
9253                                 "rc = 0x%x\n", rc);
9254                         /* no need to tear down cq - caller will do so */
9255                         return rc;
9256                 }
9257
9258                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9259                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9260                         phba->sli4_hba.mbx_wq->queue_id,
9261                         phba->sli4_hba.mbx_cq->queue_id);
9262         }
9263
9264         return 0;
9265 }
9266
9267 /**
9268  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9269  * @phba: pointer to lpfc hba data structure.
9270  *
9271  * This routine will populate the cq_lookup table by all
9272  * available CQ queue_id's.
9273  **/
9274 void
9275 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9276 {
9277         struct lpfc_queue *eq, *childq;
9278         struct lpfc_sli4_hdw_queue *qp;
9279         int qidx;
9280
9281         qp = phba->sli4_hba.hdwq;
9282         memset(phba->sli4_hba.cq_lookup, 0,
9283                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9284         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9285                 eq = qp[qidx].hba_eq;
9286                 if (!eq)
9287                         continue;
9288                 list_for_each_entry(childq, &eq->child_list, list) {
9289                         if (childq->queue_id > phba->sli4_hba.cq_max)
9290                                 continue;
9291                         if ((childq->subtype == LPFC_FCP) ||
9292                             (childq->subtype == LPFC_NVME))
9293                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9294                                         childq;
9295                 }
9296         }
9297 }
9298
9299 /**
9300  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9301  * @phba: pointer to lpfc hba data structure.
9302  *
9303  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9304  * operation.
9305  *
9306  * Return codes
9307  *      0 - successful
9308  *      -ENOMEM - No available memory
9309  *      -EIO - The mailbox failed to complete successfully.
9310  **/
9311 int
9312 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9313 {
9314         uint32_t shdr_status, shdr_add_status;
9315         union lpfc_sli4_cfg_shdr *shdr;
9316         struct lpfc_sli4_hdw_queue *qp;
9317         LPFC_MBOXQ_t *mboxq;
9318         int qidx;
9319         uint32_t length, usdelay;
9320         int rc = -ENOMEM;
9321
9322         /* Check for dual-ULP support */
9323         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9324         if (!mboxq) {
9325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9326                                 "3249 Unable to allocate memory for "
9327                                 "QUERY_FW_CFG mailbox command\n");
9328                 return -ENOMEM;
9329         }
9330         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9331                   sizeof(struct lpfc_sli4_cfg_mhdr));
9332         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9333                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9334                          length, LPFC_SLI4_MBX_EMBED);
9335
9336         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9337
9338         shdr = (union lpfc_sli4_cfg_shdr *)
9339                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9340         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9341         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9342         if (shdr_status || shdr_add_status || rc) {
9343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9344                                 "3250 QUERY_FW_CFG mailbox failed with status "
9345                                 "x%x add_status x%x, mbx status x%x\n",
9346                                 shdr_status, shdr_add_status, rc);
9347                 if (rc != MBX_TIMEOUT)
9348                         mempool_free(mboxq, phba->mbox_mem_pool);
9349                 rc = -ENXIO;
9350                 goto out_error;
9351         }
9352
9353         phba->sli4_hba.fw_func_mode =
9354                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9355         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9356         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9357         phba->sli4_hba.physical_port =
9358                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9359         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9360                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9361                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9362                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9363
9364         if (rc != MBX_TIMEOUT)
9365                 mempool_free(mboxq, phba->mbox_mem_pool);
9366
9367         /*
9368          * Set up HBA Event Queues (EQs)
9369          */
9370         qp = phba->sli4_hba.hdwq;
9371
9372         /* Set up HBA event queue */
9373         if (!qp) {
9374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9375                                 "3147 Fast-path EQs not allocated\n");
9376                 rc = -ENOMEM;
9377                 goto out_error;
9378         }
9379         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9380                 if (!qp[qidx].hba_eq) {
9381                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9382                                         "0522 Fast-path EQ (%d) not "
9383                                         "allocated\n", qidx);
9384                         rc = -ENOMEM;
9385                         goto out_destroy;
9386                 }
9387                 rc = lpfc_eq_create(phba, qp[qidx].hba_eq,
9388                                     phba->cfg_fcp_imax);
9389                 if (rc) {
9390                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9391                                         "0523 Failed setup of fast-path EQ "
9392                                         "(%d), rc = 0x%x\n", qidx,
9393                                         (uint32_t)rc);
9394                         goto out_destroy;
9395                 }
9396                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9397                                 "2584 HBA EQ setup: queue[%d]-id=%d\n", qidx,
9398                                 qp[qidx].hba_eq->queue_id);
9399         }
9400
9401         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9402                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9403                         rc = lpfc_create_wq_cq(phba,
9404                                         qp[qidx].hba_eq,
9405                                         qp[qidx].nvme_cq,
9406                                         qp[qidx].nvme_wq,
9407                                         &phba->sli4_hba.hdwq[qidx].nvme_cq_map,
9408                                         qidx, LPFC_NVME);
9409                         if (rc) {
9410                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9411                                         "6123 Failed to setup fastpath "
9412                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
9413                                         qidx, (uint32_t)rc);
9414                                 goto out_destroy;
9415                         }
9416                 }
9417         }
9418
9419         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9420                 rc = lpfc_create_wq_cq(phba,
9421                                        qp[qidx].hba_eq,
9422                                        qp[qidx].fcp_cq,
9423                                        qp[qidx].fcp_wq,
9424                                        &phba->sli4_hba.hdwq[qidx].fcp_cq_map,
9425                                        qidx, LPFC_FCP);
9426                 if (rc) {
9427                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9428                                         "0535 Failed to setup fastpath "
9429                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
9430                                         qidx, (uint32_t)rc);
9431                         goto out_destroy;
9432                 }
9433         }
9434
9435         /*
9436          * Set up Slow Path Complete Queues (CQs)
9437          */
9438
9439         /* Set up slow-path MBOX CQ/MQ */
9440
9441         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9443                                 "0528 %s not allocated\n",
9444                                 phba->sli4_hba.mbx_cq ?
9445                                 "Mailbox WQ" : "Mailbox CQ");
9446                 rc = -ENOMEM;
9447                 goto out_destroy;
9448         }
9449
9450         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9451                                phba->sli4_hba.mbx_cq,
9452                                phba->sli4_hba.mbx_wq,
9453                                NULL, 0, LPFC_MBOX);
9454         if (rc) {
9455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9456                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9457                         (uint32_t)rc);
9458                 goto out_destroy;
9459         }
9460         if (phba->nvmet_support) {
9461                 if (!phba->sli4_hba.nvmet_cqset) {
9462                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9463                                         "3165 Fast-path NVME CQ Set "
9464                                         "array not allocated\n");
9465                         rc = -ENOMEM;
9466                         goto out_destroy;
9467                 }
9468                 if (phba->cfg_nvmet_mrq > 1) {
9469                         rc = lpfc_cq_create_set(phba,
9470                                         phba->sli4_hba.nvmet_cqset,
9471                                         qp,
9472                                         LPFC_WCQ, LPFC_NVMET);
9473                         if (rc) {
9474                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9475                                                 "3164 Failed setup of NVME CQ "
9476                                                 "Set, rc = 0x%x\n",
9477                                                 (uint32_t)rc);
9478                                 goto out_destroy;
9479                         }
9480                 } else {
9481                         /* Set up NVMET Receive Complete Queue */
9482                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9483                                             qp[0].hba_eq,
9484                                             LPFC_WCQ, LPFC_NVMET);
9485                         if (rc) {
9486                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9487                                                 "6089 Failed setup NVMET CQ: "
9488                                                 "rc = 0x%x\n", (uint32_t)rc);
9489                                 goto out_destroy;
9490                         }
9491                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9492
9493                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9494                                         "6090 NVMET CQ setup: cq-id=%d, "
9495                                         "parent eq-id=%d\n",
9496                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9497                                         qp[0].hba_eq->queue_id);
9498                 }
9499         }
9500
9501         /* Set up slow-path ELS WQ/CQ */
9502         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9503                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9504                                 "0530 ELS %s not allocated\n",
9505                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9506                 rc = -ENOMEM;
9507                 goto out_destroy;
9508         }
9509         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9510                                phba->sli4_hba.els_cq,
9511                                phba->sli4_hba.els_wq,
9512                                NULL, 0, LPFC_ELS);
9513         if (rc) {
9514                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9515                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9516                                 (uint32_t)rc);
9517                 goto out_destroy;
9518         }
9519         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9520                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9521                         phba->sli4_hba.els_wq->queue_id,
9522                         phba->sli4_hba.els_cq->queue_id);
9523
9524         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9525                 /* Set up NVME LS Complete Queue */
9526                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9527                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9528                                         "6091 LS %s not allocated\n",
9529                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9530                         rc = -ENOMEM;
9531                         goto out_destroy;
9532                 }
9533                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9534                                        phba->sli4_hba.nvmels_cq,
9535                                        phba->sli4_hba.nvmels_wq,
9536                                        NULL, 0, LPFC_NVME_LS);
9537                 if (rc) {
9538                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9539                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9540                                         "rc = 0x%x\n", (uint32_t)rc);
9541                         goto out_destroy;
9542                 }
9543
9544                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9545                                 "6096 ELS WQ setup: wq-id=%d, "
9546                                 "parent cq-id=%d\n",
9547                                 phba->sli4_hba.nvmels_wq->queue_id,
9548                                 phba->sli4_hba.nvmels_cq->queue_id);
9549         }
9550
9551         /*
9552          * Create NVMET Receive Queue (RQ)
9553          */
9554         if (phba->nvmet_support) {
9555                 if ((!phba->sli4_hba.nvmet_cqset) ||
9556                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9557                     (!phba->sli4_hba.nvmet_mrq_data)) {
9558                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559                                         "6130 MRQ CQ Queues not "
9560                                         "allocated\n");
9561                         rc = -ENOMEM;
9562                         goto out_destroy;
9563                 }
9564                 if (phba->cfg_nvmet_mrq > 1) {
9565                         rc = lpfc_mrq_create(phba,
9566                                              phba->sli4_hba.nvmet_mrq_hdr,
9567                                              phba->sli4_hba.nvmet_mrq_data,
9568                                              phba->sli4_hba.nvmet_cqset,
9569                                              LPFC_NVMET);
9570                         if (rc) {
9571                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9572                                                 "6098 Failed setup of NVMET "
9573                                                 "MRQ: rc = 0x%x\n",
9574                                                 (uint32_t)rc);
9575                                 goto out_destroy;
9576                         }
9577
9578                 } else {
9579                         rc = lpfc_rq_create(phba,
9580                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9581                                             phba->sli4_hba.nvmet_mrq_data[0],
9582                                             phba->sli4_hba.nvmet_cqset[0],
9583                                             LPFC_NVMET);
9584                         if (rc) {
9585                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9586                                                 "6057 Failed setup of NVMET "
9587                                                 "Receive Queue: rc = 0x%x\n",
9588                                                 (uint32_t)rc);
9589                                 goto out_destroy;
9590                         }
9591
9592                         lpfc_printf_log(
9593                                 phba, KERN_INFO, LOG_INIT,
9594                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9595                                 "dat-rq-id=%d parent cq-id=%d\n",
9596                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9597                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9598                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9599
9600                 }
9601         }
9602
9603         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9604                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9605                                 "0540 Receive Queue not allocated\n");
9606                 rc = -ENOMEM;
9607                 goto out_destroy;
9608         }
9609
9610         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9611                             phba->sli4_hba.els_cq, LPFC_USOL);
9612         if (rc) {
9613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9614                                 "0541 Failed setup of Receive Queue: "
9615                                 "rc = 0x%x\n", (uint32_t)rc);
9616                 goto out_destroy;
9617         }
9618
9619         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9620                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9621                         "parent cq-id=%d\n",
9622                         phba->sli4_hba.hdr_rq->queue_id,
9623                         phba->sli4_hba.dat_rq->queue_id,
9624                         phba->sli4_hba.els_cq->queue_id);
9625
9626         if (phba->cfg_fcp_imax)
9627                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9628         else
9629                 usdelay = 0;
9630
9631         for (qidx = 0; qidx < phba->cfg_irq_chann;
9632              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9633                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9634                                          usdelay);
9635
9636         if (phba->sli4_hba.cq_max) {
9637                 kfree(phba->sli4_hba.cq_lookup);
9638                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9639                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9640                 if (!phba->sli4_hba.cq_lookup) {
9641                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9642                                         "0549 Failed setup of CQ Lookup table: "
9643                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9644                         rc = -ENOMEM;
9645                         goto out_destroy;
9646                 }
9647                 lpfc_setup_cq_lookup(phba);
9648         }
9649         return 0;
9650
9651 out_destroy:
9652         lpfc_sli4_queue_unset(phba);
9653 out_error:
9654         return rc;
9655 }
9656
9657 /**
9658  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9659  * @phba: pointer to lpfc hba data structure.
9660  *
9661  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9662  * operation.
9663  *
9664  * Return codes
9665  *      0 - successful
9666  *      -ENOMEM - No available memory
9667  *      -EIO - The mailbox failed to complete successfully.
9668  **/
9669 void
9670 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9671 {
9672         struct lpfc_sli4_hdw_queue *qp;
9673         int qidx;
9674
9675         /* Unset mailbox command work queue */
9676         if (phba->sli4_hba.mbx_wq)
9677                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9678
9679         /* Unset NVME LS work queue */
9680         if (phba->sli4_hba.nvmels_wq)
9681                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9682
9683         /* Unset ELS work queue */
9684         if (phba->sli4_hba.els_wq)
9685                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9686
9687         /* Unset unsolicited receive queue */
9688         if (phba->sli4_hba.hdr_rq)
9689                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9690                                 phba->sli4_hba.dat_rq);
9691
9692         /* Unset mailbox command complete queue */
9693         if (phba->sli4_hba.mbx_cq)
9694                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9695
9696         /* Unset ELS complete queue */
9697         if (phba->sli4_hba.els_cq)
9698                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9699
9700         /* Unset NVME LS complete queue */
9701         if (phba->sli4_hba.nvmels_cq)
9702                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9703
9704         if (phba->nvmet_support) {
9705                 /* Unset NVMET MRQ queue */
9706                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9707                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9708                                 lpfc_rq_destroy(
9709                                         phba,
9710                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9711                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9712                 }
9713
9714                 /* Unset NVMET CQ Set complete queue */
9715                 if (phba->sli4_hba.nvmet_cqset) {
9716                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9717                                 lpfc_cq_destroy(
9718                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9719                 }
9720         }
9721
9722         /* Unset fast-path SLI4 queues */
9723         if (phba->sli4_hba.hdwq) {
9724                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9725                         qp = &phba->sli4_hba.hdwq[qidx];
9726                         lpfc_wq_destroy(phba, qp->fcp_wq);
9727                         lpfc_wq_destroy(phba, qp->nvme_wq);
9728                         lpfc_cq_destroy(phba, qp->fcp_cq);
9729                         lpfc_cq_destroy(phba, qp->nvme_cq);
9730                         if (qidx < phba->cfg_irq_chann)
9731                                 lpfc_eq_destroy(phba, qp->hba_eq);
9732                 }
9733         }
9734
9735         kfree(phba->sli4_hba.cq_lookup);
9736         phba->sli4_hba.cq_lookup = NULL;
9737         phba->sli4_hba.cq_max = 0;
9738 }
9739
9740 /**
9741  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9742  * @phba: pointer to lpfc hba data structure.
9743  *
9744  * This routine is invoked to allocate and set up a pool of completion queue
9745  * events. The body of the completion queue event is a completion queue entry
9746  * CQE. For now, this pool is used for the interrupt service routine to queue
9747  * the following HBA completion queue events for the worker thread to process:
9748  *   - Mailbox asynchronous events
9749  *   - Receive queue completion unsolicited events
9750  * Later, this can be used for all the slow-path events.
9751  *
9752  * Return codes
9753  *      0 - successful
9754  *      -ENOMEM - No available memory
9755  **/
9756 static int
9757 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9758 {
9759         struct lpfc_cq_event *cq_event;
9760         int i;
9761
9762         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9763                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9764                 if (!cq_event)
9765                         goto out_pool_create_fail;
9766                 list_add_tail(&cq_event->list,
9767                               &phba->sli4_hba.sp_cqe_event_pool);
9768         }
9769         return 0;
9770
9771 out_pool_create_fail:
9772         lpfc_sli4_cq_event_pool_destroy(phba);
9773         return -ENOMEM;
9774 }
9775
9776 /**
9777  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9778  * @phba: pointer to lpfc hba data structure.
9779  *
9780  * This routine is invoked to free the pool of completion queue events at
9781  * driver unload time. Note that, it is the responsibility of the driver
9782  * cleanup routine to free all the outstanding completion-queue events
9783  * allocated from this pool back into the pool before invoking this routine
9784  * to destroy the pool.
9785  **/
9786 static void
9787 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9788 {
9789         struct lpfc_cq_event *cq_event, *next_cq_event;
9790
9791         list_for_each_entry_safe(cq_event, next_cq_event,
9792                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9793                 list_del(&cq_event->list);
9794                 kfree(cq_event);
9795         }
9796 }
9797
9798 /**
9799  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9800  * @phba: pointer to lpfc hba data structure.
9801  *
9802  * This routine is the lock free version of the API invoked to allocate a
9803  * completion-queue event from the free pool.
9804  *
9805  * Return: Pointer to the newly allocated completion-queue event if successful
9806  *         NULL otherwise.
9807  **/
9808 struct lpfc_cq_event *
9809 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9810 {
9811         struct lpfc_cq_event *cq_event = NULL;
9812
9813         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9814                          struct lpfc_cq_event, list);
9815         return cq_event;
9816 }
9817
9818 /**
9819  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9820  * @phba: pointer to lpfc hba data structure.
9821  *
9822  * This routine is the lock version of the API invoked to allocate a
9823  * completion-queue event from the free pool.
9824  *
9825  * Return: Pointer to the newly allocated completion-queue event if successful
9826  *         NULL otherwise.
9827  **/
9828 struct lpfc_cq_event *
9829 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9830 {
9831         struct lpfc_cq_event *cq_event;
9832         unsigned long iflags;
9833
9834         spin_lock_irqsave(&phba->hbalock, iflags);
9835         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9836         spin_unlock_irqrestore(&phba->hbalock, iflags);
9837         return cq_event;
9838 }
9839
9840 /**
9841  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9842  * @phba: pointer to lpfc hba data structure.
9843  * @cq_event: pointer to the completion queue event to be freed.
9844  *
9845  * This routine is the lock free version of the API invoked to release a
9846  * completion-queue event back into the free pool.
9847  **/
9848 void
9849 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9850                              struct lpfc_cq_event *cq_event)
9851 {
9852         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9853 }
9854
9855 /**
9856  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9857  * @phba: pointer to lpfc hba data structure.
9858  * @cq_event: pointer to the completion queue event to be freed.
9859  *
9860  * This routine is the lock version of the API invoked to release a
9861  * completion-queue event back into the free pool.
9862  **/
9863 void
9864 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9865                            struct lpfc_cq_event *cq_event)
9866 {
9867         unsigned long iflags;
9868         spin_lock_irqsave(&phba->hbalock, iflags);
9869         __lpfc_sli4_cq_event_release(phba, cq_event);
9870         spin_unlock_irqrestore(&phba->hbalock, iflags);
9871 }
9872
9873 /**
9874  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9875  * @phba: pointer to lpfc hba data structure.
9876  *
9877  * This routine is to free all the pending completion-queue events to the
9878  * back into the free pool for device reset.
9879  **/
9880 static void
9881 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9882 {
9883         LIST_HEAD(cqelist);
9884         struct lpfc_cq_event *cqe;
9885         unsigned long iflags;
9886
9887         /* Retrieve all the pending WCQEs from pending WCQE lists */
9888         spin_lock_irqsave(&phba->hbalock, iflags);
9889         /* Pending FCP XRI abort events */
9890         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9891                          &cqelist);
9892         /* Pending ELS XRI abort events */
9893         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9894                          &cqelist);
9895         /* Pending asynnc events */
9896         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9897                          &cqelist);
9898         spin_unlock_irqrestore(&phba->hbalock, iflags);
9899
9900         while (!list_empty(&cqelist)) {
9901                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9902                 lpfc_sli4_cq_event_release(phba, cqe);
9903         }
9904 }
9905
9906 /**
9907  * lpfc_pci_function_reset - Reset pci function.
9908  * @phba: pointer to lpfc hba data structure.
9909  *
9910  * This routine is invoked to request a PCI function reset. It will destroys
9911  * all resources assigned to the PCI function which originates this request.
9912  *
9913  * Return codes
9914  *      0 - successful
9915  *      -ENOMEM - No available memory
9916  *      -EIO - The mailbox failed to complete successfully.
9917  **/
9918 int
9919 lpfc_pci_function_reset(struct lpfc_hba *phba)
9920 {
9921         LPFC_MBOXQ_t *mboxq;
9922         uint32_t rc = 0, if_type;
9923         uint32_t shdr_status, shdr_add_status;
9924         uint32_t rdy_chk;
9925         uint32_t port_reset = 0;
9926         union lpfc_sli4_cfg_shdr *shdr;
9927         struct lpfc_register reg_data;
9928         uint16_t devid;
9929
9930         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9931         switch (if_type) {
9932         case LPFC_SLI_INTF_IF_TYPE_0:
9933                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9934                                                        GFP_KERNEL);
9935                 if (!mboxq) {
9936                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9937                                         "0494 Unable to allocate memory for "
9938                                         "issuing SLI_FUNCTION_RESET mailbox "
9939                                         "command\n");
9940                         return -ENOMEM;
9941                 }
9942
9943                 /* Setup PCI function reset mailbox-ioctl command */
9944                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9945                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9946                                  LPFC_SLI4_MBX_EMBED);
9947                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9948                 shdr = (union lpfc_sli4_cfg_shdr *)
9949                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9950                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9951                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9952                                          &shdr->response);
9953                 if (rc != MBX_TIMEOUT)
9954                         mempool_free(mboxq, phba->mbox_mem_pool);
9955                 if (shdr_status || shdr_add_status || rc) {
9956                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9957                                         "0495 SLI_FUNCTION_RESET mailbox "
9958                                         "failed with status x%x add_status x%x,"
9959                                         " mbx status x%x\n",
9960                                         shdr_status, shdr_add_status, rc);
9961                         rc = -ENXIO;
9962                 }
9963                 break;
9964         case LPFC_SLI_INTF_IF_TYPE_2:
9965         case LPFC_SLI_INTF_IF_TYPE_6:
9966 wait:
9967                 /*
9968                  * Poll the Port Status Register and wait for RDY for
9969                  * up to 30 seconds. If the port doesn't respond, treat
9970                  * it as an error.
9971                  */
9972                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9973                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9974                                 STATUSregaddr, &reg_data.word0)) {
9975                                 rc = -ENODEV;
9976                                 goto out;
9977                         }
9978                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9979                                 break;
9980                         msleep(20);
9981                 }
9982
9983                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9984                         phba->work_status[0] = readl(
9985                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9986                         phba->work_status[1] = readl(
9987                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9988                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9989                                         "2890 Port not ready, port status reg "
9990                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9991                                         reg_data.word0,
9992                                         phba->work_status[0],
9993                                         phba->work_status[1]);
9994                         rc = -ENODEV;
9995                         goto out;
9996                 }
9997
9998                 if (!port_reset) {
9999                         /*
10000                          * Reset the port now
10001                          */
10002                         reg_data.word0 = 0;
10003                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10004                                LPFC_SLIPORT_LITTLE_ENDIAN);
10005                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10006                                LPFC_SLIPORT_INIT_PORT);
10007                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10008                                CTRLregaddr);
10009                         /* flush */
10010                         pci_read_config_word(phba->pcidev,
10011                                              PCI_DEVICE_ID, &devid);
10012
10013                         port_reset = 1;
10014                         msleep(20);
10015                         goto wait;
10016                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10017                         rc = -ENODEV;
10018                         goto out;
10019                 }
10020                 break;
10021
10022         case LPFC_SLI_INTF_IF_TYPE_1:
10023         default:
10024                 break;
10025         }
10026
10027 out:
10028         /* Catch the not-ready port failure after a port reset. */
10029         if (rc) {
10030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10031                                 "3317 HBA not functional: IP Reset Failed "
10032                                 "try: echo fw_reset > board_mode\n");
10033                 rc = -ENODEV;
10034         }
10035
10036         return rc;
10037 }
10038
10039 /**
10040  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10041  * @phba: pointer to lpfc hba data structure.
10042  *
10043  * This routine is invoked to set up the PCI device memory space for device
10044  * with SLI-4 interface spec.
10045  *
10046  * Return codes
10047  *      0 - successful
10048  *      other values - error
10049  **/
10050 static int
10051 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10052 {
10053         struct pci_dev *pdev = phba->pcidev;
10054         unsigned long bar0map_len, bar1map_len, bar2map_len;
10055         int error = -ENODEV;
10056         uint32_t if_type;
10057
10058         if (!pdev)
10059                 return -ENODEV;
10060
10061         /* Set the device DMA mask size */
10062         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10063         if (error)
10064                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10065         if (error)
10066                 return error;
10067
10068         /*
10069          * The BARs and register set definitions and offset locations are
10070          * dependent on the if_type.
10071          */
10072         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10073                                   &phba->sli4_hba.sli_intf.word0)) {
10074                 return error;
10075         }
10076
10077         /* There is no SLI3 failback for SLI4 devices. */
10078         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10079             LPFC_SLI_INTF_VALID) {
10080                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10081                                 "2894 SLI_INTF reg contents invalid "
10082                                 "sli_intf reg 0x%x\n",
10083                                 phba->sli4_hba.sli_intf.word0);
10084                 return error;
10085         }
10086
10087         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10088         /*
10089          * Get the bus address of SLI4 device Bar regions and the
10090          * number of bytes required by each mapping. The mapping of the
10091          * particular PCI BARs regions is dependent on the type of
10092          * SLI4 device.
10093          */
10094         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10095                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10096                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10097
10098                 /*
10099                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10100                  * addr
10101                  */
10102                 phba->sli4_hba.conf_regs_memmap_p =
10103                         ioremap(phba->pci_bar0_map, bar0map_len);
10104                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10105                         dev_printk(KERN_ERR, &pdev->dev,
10106                                    "ioremap failed for SLI4 PCI config "
10107                                    "registers.\n");
10108                         goto out;
10109                 }
10110                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10111                 /* Set up BAR0 PCI config space register memory map */
10112                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10113         } else {
10114                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10115                 bar0map_len = pci_resource_len(pdev, 1);
10116                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10117                         dev_printk(KERN_ERR, &pdev->dev,
10118                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10119                         goto out;
10120                 }
10121                 phba->sli4_hba.conf_regs_memmap_p =
10122                                 ioremap(phba->pci_bar0_map, bar0map_len);
10123                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10124                         dev_printk(KERN_ERR, &pdev->dev,
10125                                 "ioremap failed for SLI4 PCI config "
10126                                 "registers.\n");
10127                         goto out;
10128                 }
10129                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10130         }
10131
10132         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10133                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10134                         /*
10135                          * Map SLI4 if type 0 HBA Control Register base to a
10136                          * kernel virtual address and setup the registers.
10137                          */
10138                         phba->pci_bar1_map = pci_resource_start(pdev,
10139                                                                 PCI_64BIT_BAR2);
10140                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10141                         phba->sli4_hba.ctrl_regs_memmap_p =
10142                                         ioremap(phba->pci_bar1_map,
10143                                                 bar1map_len);
10144                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10145                                 dev_err(&pdev->dev,
10146                                            "ioremap failed for SLI4 HBA "
10147                                             "control registers.\n");
10148                                 error = -ENOMEM;
10149                                 goto out_iounmap_conf;
10150                         }
10151                         phba->pci_bar2_memmap_p =
10152                                          phba->sli4_hba.ctrl_regs_memmap_p;
10153                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10154                 } else {
10155                         error = -ENOMEM;
10156                         goto out_iounmap_conf;
10157                 }
10158         }
10159
10160         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10161             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10162                 /*
10163                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10164                  * virtual address and setup the registers.
10165                  */
10166                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10167                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10168                 phba->sli4_hba.drbl_regs_memmap_p =
10169                                 ioremap(phba->pci_bar1_map, bar1map_len);
10170                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10171                         dev_err(&pdev->dev,
10172                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10173                         goto out_iounmap_conf;
10174                 }
10175                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10176                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10177         }
10178
10179         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10180                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10181                         /*
10182                          * Map SLI4 if type 0 HBA Doorbell Register base to
10183                          * a kernel virtual address and setup the registers.
10184                          */
10185                         phba->pci_bar2_map = pci_resource_start(pdev,
10186                                                                 PCI_64BIT_BAR4);
10187                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10188                         phba->sli4_hba.drbl_regs_memmap_p =
10189                                         ioremap(phba->pci_bar2_map,
10190                                                 bar2map_len);
10191                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10192                                 dev_err(&pdev->dev,
10193                                            "ioremap failed for SLI4 HBA"
10194                                            " doorbell registers.\n");
10195                                 error = -ENOMEM;
10196                                 goto out_iounmap_ctrl;
10197                         }
10198                         phba->pci_bar4_memmap_p =
10199                                         phba->sli4_hba.drbl_regs_memmap_p;
10200                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10201                         if (error)
10202                                 goto out_iounmap_all;
10203                 } else {
10204                         error = -ENOMEM;
10205                         goto out_iounmap_all;
10206                 }
10207         }
10208
10209         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10210             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10211                 /*
10212                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10213                  * virtual address and setup the registers.
10214                  */
10215                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10216                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10217                 phba->sli4_hba.dpp_regs_memmap_p =
10218                                 ioremap(phba->pci_bar2_map, bar2map_len);
10219                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10220                         dev_err(&pdev->dev,
10221                            "ioremap failed for SLI4 HBA dpp registers.\n");
10222                         goto out_iounmap_ctrl;
10223                 }
10224                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10225         }
10226
10227         /* Set up the EQ/CQ register handeling functions now */
10228         switch (if_type) {
10229         case LPFC_SLI_INTF_IF_TYPE_0:
10230         case LPFC_SLI_INTF_IF_TYPE_2:
10231                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10232                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10233                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10234                 break;
10235         case LPFC_SLI_INTF_IF_TYPE_6:
10236                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10237                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10238                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10239                 break;
10240         default:
10241                 break;
10242         }
10243
10244         return 0;
10245
10246 out_iounmap_all:
10247         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10248 out_iounmap_ctrl:
10249         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10250 out_iounmap_conf:
10251         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10252 out:
10253         return error;
10254 }
10255
10256 /**
10257  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10258  * @phba: pointer to lpfc hba data structure.
10259  *
10260  * This routine is invoked to unset the PCI device memory space for device
10261  * with SLI-4 interface spec.
10262  **/
10263 static void
10264 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10265 {
10266         uint32_t if_type;
10267         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10268
10269         switch (if_type) {
10270         case LPFC_SLI_INTF_IF_TYPE_0:
10271                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10272                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10273                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10274                 break;
10275         case LPFC_SLI_INTF_IF_TYPE_2:
10276                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10277                 break;
10278         case LPFC_SLI_INTF_IF_TYPE_6:
10279                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10280                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10281                 break;
10282         case LPFC_SLI_INTF_IF_TYPE_1:
10283         default:
10284                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10285                            "FATAL - unsupported SLI4 interface type - %d\n",
10286                            if_type);
10287                 break;
10288         }
10289 }
10290
10291 /**
10292  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10293  * @phba: pointer to lpfc hba data structure.
10294  *
10295  * This routine is invoked to enable the MSI-X interrupt vectors to device
10296  * with SLI-3 interface specs.
10297  *
10298  * Return codes
10299  *   0 - successful
10300  *   other values - error
10301  **/
10302 static int
10303 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10304 {
10305         int rc;
10306         LPFC_MBOXQ_t *pmb;
10307
10308         /* Set up MSI-X multi-message vectors */
10309         rc = pci_alloc_irq_vectors(phba->pcidev,
10310                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10311         if (rc < 0) {
10312                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10313                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10314                 goto vec_fail_out;
10315         }
10316
10317         /*
10318          * Assign MSI-X vectors to interrupt handlers
10319          */
10320
10321         /* vector-0 is associated to slow-path handler */
10322         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10323                          &lpfc_sli_sp_intr_handler, 0,
10324                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10325         if (rc) {
10326                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10327                                 "0421 MSI-X slow-path request_irq failed "
10328                                 "(%d)\n", rc);
10329                 goto msi_fail_out;
10330         }
10331
10332         /* vector-1 is associated to fast-path handler */
10333         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10334                          &lpfc_sli_fp_intr_handler, 0,
10335                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10336
10337         if (rc) {
10338                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10339                                 "0429 MSI-X fast-path request_irq failed "
10340                                 "(%d)\n", rc);
10341                 goto irq_fail_out;
10342         }
10343
10344         /*
10345          * Configure HBA MSI-X attention conditions to messages
10346          */
10347         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10348
10349         if (!pmb) {
10350                 rc = -ENOMEM;
10351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10352                                 "0474 Unable to allocate memory for issuing "
10353                                 "MBOX_CONFIG_MSI command\n");
10354                 goto mem_fail_out;
10355         }
10356         rc = lpfc_config_msi(phba, pmb);
10357         if (rc)
10358                 goto mbx_fail_out;
10359         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10360         if (rc != MBX_SUCCESS) {
10361                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10362                                 "0351 Config MSI mailbox command failed, "
10363                                 "mbxCmd x%x, mbxStatus x%x\n",
10364                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10365                 goto mbx_fail_out;
10366         }
10367
10368         /* Free memory allocated for mailbox command */
10369         mempool_free(pmb, phba->mbox_mem_pool);
10370         return rc;
10371
10372 mbx_fail_out:
10373         /* Free memory allocated for mailbox command */
10374         mempool_free(pmb, phba->mbox_mem_pool);
10375
10376 mem_fail_out:
10377         /* free the irq already requested */
10378         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10379
10380 irq_fail_out:
10381         /* free the irq already requested */
10382         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10383
10384 msi_fail_out:
10385         /* Unconfigure MSI-X capability structure */
10386         pci_free_irq_vectors(phba->pcidev);
10387
10388 vec_fail_out:
10389         return rc;
10390 }
10391
10392 /**
10393  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10394  * @phba: pointer to lpfc hba data structure.
10395  *
10396  * This routine is invoked to enable the MSI interrupt mode to device with
10397  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10398  * enable the MSI vector. The device driver is responsible for calling the
10399  * request_irq() to register MSI vector with a interrupt the handler, which
10400  * is done in this function.
10401  *
10402  * Return codes
10403  *      0 - successful
10404  *      other values - error
10405  */
10406 static int
10407 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10408 {
10409         int rc;
10410
10411         rc = pci_enable_msi(phba->pcidev);
10412         if (!rc)
10413                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10414                                 "0462 PCI enable MSI mode success.\n");
10415         else {
10416                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10417                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10418                 return rc;
10419         }
10420
10421         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10422                          0, LPFC_DRIVER_NAME, phba);
10423         if (rc) {
10424                 pci_disable_msi(phba->pcidev);
10425                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10426                                 "0478 MSI request_irq failed (%d)\n", rc);
10427         }
10428         return rc;
10429 }
10430
10431 /**
10432  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10433  * @phba: pointer to lpfc hba data structure.
10434  *
10435  * This routine is invoked to enable device interrupt and associate driver's
10436  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10437  * spec. Depends on the interrupt mode configured to the driver, the driver
10438  * will try to fallback from the configured interrupt mode to an interrupt
10439  * mode which is supported by the platform, kernel, and device in the order
10440  * of:
10441  * MSI-X -> MSI -> IRQ.
10442  *
10443  * Return codes
10444  *   0 - successful
10445  *   other values - error
10446  **/
10447 static uint32_t
10448 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10449 {
10450         uint32_t intr_mode = LPFC_INTR_ERROR;
10451         int retval;
10452
10453         if (cfg_mode == 2) {
10454                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10455                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10456                 if (!retval) {
10457                         /* Now, try to enable MSI-X interrupt mode */
10458                         retval = lpfc_sli_enable_msix(phba);
10459                         if (!retval) {
10460                                 /* Indicate initialization to MSI-X mode */
10461                                 phba->intr_type = MSIX;
10462                                 intr_mode = 2;
10463                         }
10464                 }
10465         }
10466
10467         /* Fallback to MSI if MSI-X initialization failed */
10468         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10469                 retval = lpfc_sli_enable_msi(phba);
10470                 if (!retval) {
10471                         /* Indicate initialization to MSI mode */
10472                         phba->intr_type = MSI;
10473                         intr_mode = 1;
10474                 }
10475         }
10476
10477         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10478         if (phba->intr_type == NONE) {
10479                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10480                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10481                 if (!retval) {
10482                         /* Indicate initialization to INTx mode */
10483                         phba->intr_type = INTx;
10484                         intr_mode = 0;
10485                 }
10486         }
10487         return intr_mode;
10488 }
10489
10490 /**
10491  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10492  * @phba: pointer to lpfc hba data structure.
10493  *
10494  * This routine is invoked to disable device interrupt and disassociate the
10495  * driver's interrupt handler(s) from interrupt vector(s) to device with
10496  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10497  * release the interrupt vector(s) for the message signaled interrupt.
10498  **/
10499 static void
10500 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10501 {
10502         int nr_irqs, i;
10503
10504         if (phba->intr_type == MSIX)
10505                 nr_irqs = LPFC_MSIX_VECTORS;
10506         else
10507                 nr_irqs = 1;
10508
10509         for (i = 0; i < nr_irqs; i++)
10510                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10511         pci_free_irq_vectors(phba->pcidev);
10512
10513         /* Reset interrupt management states */
10514         phba->intr_type = NONE;
10515         phba->sli.slistat.sli_intr = 0;
10516 }
10517
10518 /**
10519  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified EQ
10520  * @phba: pointer to lpfc hba data structure.
10521  * @id: EQ vector index or Hardware Queue index
10522  * @match: LPFC_FIND_BY_EQ = match by EQ
10523  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10524  */
10525 static uint16_t
10526 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10527 {
10528         struct lpfc_vector_map_info *cpup;
10529         int cpu;
10530
10531         /* Find the desired phys_id for the specified EQ */
10532         for_each_present_cpu(cpu) {
10533                 cpup = &phba->sli4_hba.cpu_map[cpu];
10534                 if ((match == LPFC_FIND_BY_EQ) &&
10535                     (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10536                     (cpup->eq == id))
10537                         return cpu;
10538                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10539                         return cpu;
10540         }
10541         return 0;
10542 }
10543
10544 /**
10545  * lpfc_find_eq_handle - Find the EQ that corresponds to the specified
10546  *                       Hardware Queue
10547  * @phba: pointer to lpfc hba data structure.
10548  * @hdwq: Hardware Queue index
10549  */
10550 static uint16_t
10551 lpfc_find_eq_handle(struct lpfc_hba *phba, uint16_t hdwq)
10552 {
10553         struct lpfc_vector_map_info *cpup;
10554         int cpu;
10555
10556         /* Find the desired phys_id for the specified EQ */
10557         for_each_present_cpu(cpu) {
10558                 cpup = &phba->sli4_hba.cpu_map[cpu];
10559                 if (cpup->hdwq == hdwq)
10560                         return cpup->eq;
10561         }
10562         return 0;
10563 }
10564
10565 #ifdef CONFIG_X86
10566 /**
10567  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10568  * @phba: pointer to lpfc hba data structure.
10569  * @cpu: CPU map index
10570  * @phys_id: CPU package physical id
10571  * @core_id: CPU core id
10572  */
10573 static int
10574 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10575                 uint16_t phys_id, uint16_t core_id)
10576 {
10577         struct lpfc_vector_map_info *cpup;
10578         int idx;
10579
10580         for_each_present_cpu(idx) {
10581                 cpup = &phba->sli4_hba.cpu_map[idx];
10582                 /* Does the cpup match the one we are looking for */
10583                 if ((cpup->phys_id == phys_id) &&
10584                     (cpup->core_id == core_id) &&
10585                     (cpu != idx))
10586                         return 1;
10587         }
10588         return 0;
10589 }
10590 #endif
10591
10592 /**
10593  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10594  * @phba: pointer to lpfc hba data structure.
10595  * @vectors: number of msix vectors allocated.
10596  *
10597  * The routine will figure out the CPU affinity assignment for every
10598  * MSI-X vector allocated for the HBA.
10599  * In addition, the CPU to IO channel mapping will be calculated
10600  * and the phba->sli4_hba.cpu_map array will reflect this.
10601  */
10602 static void
10603 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10604 {
10605         int i, cpu, idx;
10606         int max_phys_id, min_phys_id;
10607         int max_core_id, min_core_id;
10608         struct lpfc_vector_map_info *cpup;
10609         const struct cpumask *maskp;
10610 #ifdef CONFIG_X86
10611         struct cpuinfo_x86 *cpuinfo;
10612 #endif
10613
10614         /* Init cpu_map array */
10615         memset(phba->sli4_hba.cpu_map, 0xff,
10616                (sizeof(struct lpfc_vector_map_info) *
10617                phba->sli4_hba.num_possible_cpu));
10618
10619         max_phys_id = 0;
10620         min_phys_id = 0xffff;
10621         max_core_id = 0;
10622         min_core_id = 0xffff;
10623
10624         /* Update CPU map with physical id and core id of each CPU */
10625         for_each_present_cpu(cpu) {
10626                 cpup = &phba->sli4_hba.cpu_map[cpu];
10627 #ifdef CONFIG_X86
10628                 cpuinfo = &cpu_data(cpu);
10629                 cpup->phys_id = cpuinfo->phys_proc_id;
10630                 cpup->core_id = cpuinfo->cpu_core_id;
10631                 cpup->hyper = lpfc_find_hyper(phba, cpu,
10632                                               cpup->phys_id, cpup->core_id);
10633 #else
10634                 /* No distinction between CPUs for other platforms */
10635                 cpup->phys_id = 0;
10636                 cpup->core_id = cpu;
10637                 cpup->hyper = 0;
10638 #endif
10639
10640                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10641                                 "3328 CPU physid %d coreid %d\n",
10642                                 cpup->phys_id, cpup->core_id);
10643
10644                 if (cpup->phys_id > max_phys_id)
10645                         max_phys_id = cpup->phys_id;
10646                 if (cpup->phys_id < min_phys_id)
10647                         min_phys_id = cpup->phys_id;
10648
10649                 if (cpup->core_id > max_core_id)
10650                         max_core_id = cpup->core_id;
10651                 if (cpup->core_id < min_core_id)
10652                         min_core_id = cpup->core_id;
10653         }
10654
10655         for_each_possible_cpu(i) {
10656                 struct lpfc_eq_intr_info *eqi =
10657                         per_cpu_ptr(phba->sli4_hba.eq_info, i);
10658
10659                 INIT_LIST_HEAD(&eqi->list);
10660                 eqi->icnt = 0;
10661         }
10662
10663         for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10664                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
10665                 if (!maskp)
10666                         continue;
10667
10668                 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10669                         cpup = &phba->sli4_hba.cpu_map[cpu];
10670                         cpup->eq = idx;
10671                         cpup->hdwq = idx;
10672                         cpup->irq = pci_irq_vector(phba->pcidev, idx);
10673
10674                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10675                                         "3336 Set Affinity: CPU %d "
10676                                         "hdwq %d irq %d\n",
10677                                         cpu, cpup->hdwq, cpup->irq);
10678                 }
10679         }
10680         return;
10681 }
10682
10683 /**
10684  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10685  * @phba: pointer to lpfc hba data structure.
10686  *
10687  * This routine is invoked to enable the MSI-X interrupt vectors to device
10688  * with SLI-4 interface spec.
10689  *
10690  * Return codes
10691  * 0 - successful
10692  * other values - error
10693  **/
10694 static int
10695 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10696 {
10697         int vectors, rc, index;
10698         char *name;
10699
10700         /* Set up MSI-X multi-message vectors */
10701         vectors = phba->cfg_irq_chann;
10702
10703         rc = pci_alloc_irq_vectors(phba->pcidev,
10704                                 1,
10705                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10706         if (rc < 0) {
10707                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10708                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10709                 goto vec_fail_out;
10710         }
10711         vectors = rc;
10712
10713         /* Assign MSI-X vectors to interrupt handlers */
10714         for (index = 0; index < vectors; index++) {
10715                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10716                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10717                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10718                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10719
10720                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10721                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10722                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
10723                          &lpfc_sli4_hba_intr_handler, 0,
10724                          name,
10725                          &phba->sli4_hba.hba_eq_hdl[index]);
10726                 if (rc) {
10727                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10728                                         "0486 MSI-X fast-path (%d) "
10729                                         "request_irq failed (%d)\n", index, rc);
10730                         goto cfg_fail_out;
10731                 }
10732         }
10733
10734         if (vectors != phba->cfg_irq_chann) {
10735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10736                                 "3238 Reducing IO channels to match number of "
10737                                 "MSI-X vectors, requested %d got %d\n",
10738                                 phba->cfg_irq_chann, vectors);
10739                 if (phba->cfg_irq_chann > vectors)
10740                         phba->cfg_irq_chann = vectors;
10741                 if (phba->cfg_nvmet_mrq > vectors)
10742                         phba->cfg_nvmet_mrq = vectors;
10743         }
10744
10745         return rc;
10746
10747 cfg_fail_out:
10748         /* free the irq already requested */
10749         for (--index; index >= 0; index--)
10750                 free_irq(pci_irq_vector(phba->pcidev, index),
10751                                 &phba->sli4_hba.hba_eq_hdl[index]);
10752
10753         /* Unconfigure MSI-X capability structure */
10754         pci_free_irq_vectors(phba->pcidev);
10755
10756 vec_fail_out:
10757         return rc;
10758 }
10759
10760 /**
10761  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10762  * @phba: pointer to lpfc hba data structure.
10763  *
10764  * This routine is invoked to enable the MSI interrupt mode to device with
10765  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10766  * to enable the MSI vector. The device driver is responsible for calling
10767  * the request_irq() to register MSI vector with a interrupt the handler,
10768  * which is done in this function.
10769  *
10770  * Return codes
10771  *      0 - successful
10772  *      other values - error
10773  **/
10774 static int
10775 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10776 {
10777         int rc, index;
10778
10779         rc = pci_enable_msi(phba->pcidev);
10780         if (!rc)
10781                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10782                                 "0487 PCI enable MSI mode success.\n");
10783         else {
10784                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10785                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10786                 return rc;
10787         }
10788
10789         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10790                          0, LPFC_DRIVER_NAME, phba);
10791         if (rc) {
10792                 pci_disable_msi(phba->pcidev);
10793                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10794                                 "0490 MSI request_irq failed (%d)\n", rc);
10795                 return rc;
10796         }
10797
10798         for (index = 0; index < phba->cfg_irq_chann; index++) {
10799                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10800                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10801         }
10802
10803         return 0;
10804 }
10805
10806 /**
10807  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10808  * @phba: pointer to lpfc hba data structure.
10809  *
10810  * This routine is invoked to enable device interrupt and associate driver's
10811  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10812  * interface spec. Depends on the interrupt mode configured to the driver,
10813  * the driver will try to fallback from the configured interrupt mode to an
10814  * interrupt mode which is supported by the platform, kernel, and device in
10815  * the order of:
10816  * MSI-X -> MSI -> IRQ.
10817  *
10818  * Return codes
10819  *      0 - successful
10820  *      other values - error
10821  **/
10822 static uint32_t
10823 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10824 {
10825         uint32_t intr_mode = LPFC_INTR_ERROR;
10826         int retval, idx;
10827
10828         if (cfg_mode == 2) {
10829                 /* Preparation before conf_msi mbox cmd */
10830                 retval = 0;
10831                 if (!retval) {
10832                         /* Now, try to enable MSI-X interrupt mode */
10833                         retval = lpfc_sli4_enable_msix(phba);
10834                         if (!retval) {
10835                                 /* Indicate initialization to MSI-X mode */
10836                                 phba->intr_type = MSIX;
10837                                 intr_mode = 2;
10838                         }
10839                 }
10840         }
10841
10842         /* Fallback to MSI if MSI-X initialization failed */
10843         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10844                 retval = lpfc_sli4_enable_msi(phba);
10845                 if (!retval) {
10846                         /* Indicate initialization to MSI mode */
10847                         phba->intr_type = MSI;
10848                         intr_mode = 1;
10849                 }
10850         }
10851
10852         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10853         if (phba->intr_type == NONE) {
10854                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10855                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10856                 if (!retval) {
10857                         struct lpfc_hba_eq_hdl *eqhdl;
10858
10859                         /* Indicate initialization to INTx mode */
10860                         phba->intr_type = INTx;
10861                         intr_mode = 0;
10862
10863                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10864                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10865                                 eqhdl->idx = idx;
10866                                 eqhdl->phba = phba;
10867                         }
10868                 }
10869         }
10870         return intr_mode;
10871 }
10872
10873 /**
10874  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10875  * @phba: pointer to lpfc hba data structure.
10876  *
10877  * This routine is invoked to disable device interrupt and disassociate
10878  * the driver's interrupt handler(s) from interrupt vector(s) to device
10879  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10880  * will release the interrupt vector(s) for the message signaled interrupt.
10881  **/
10882 static void
10883 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10884 {
10885         /* Disable the currently initialized interrupt mode */
10886         if (phba->intr_type == MSIX) {
10887                 int index;
10888
10889                 /* Free up MSI-X multi-message vectors */
10890                 for (index = 0; index < phba->cfg_irq_chann; index++) {
10891                         irq_set_affinity_hint(
10892                                 pci_irq_vector(phba->pcidev, index),
10893                                 NULL);
10894                         free_irq(pci_irq_vector(phba->pcidev, index),
10895                                         &phba->sli4_hba.hba_eq_hdl[index]);
10896                 }
10897         } else {
10898                 free_irq(phba->pcidev->irq, phba);
10899         }
10900
10901         pci_free_irq_vectors(phba->pcidev);
10902
10903         /* Reset interrupt management states */
10904         phba->intr_type = NONE;
10905         phba->sli.slistat.sli_intr = 0;
10906 }
10907
10908 /**
10909  * lpfc_unset_hba - Unset SLI3 hba device initialization
10910  * @phba: pointer to lpfc hba data structure.
10911  *
10912  * This routine is invoked to unset the HBA device initialization steps to
10913  * a device with SLI-3 interface spec.
10914  **/
10915 static void
10916 lpfc_unset_hba(struct lpfc_hba *phba)
10917 {
10918         struct lpfc_vport *vport = phba->pport;
10919         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10920
10921         spin_lock_irq(shost->host_lock);
10922         vport->load_flag |= FC_UNLOADING;
10923         spin_unlock_irq(shost->host_lock);
10924
10925         kfree(phba->vpi_bmask);
10926         kfree(phba->vpi_ids);
10927
10928         lpfc_stop_hba_timers(phba);
10929
10930         phba->pport->work_port_events = 0;
10931
10932         lpfc_sli_hba_down(phba);
10933
10934         lpfc_sli_brdrestart(phba);
10935
10936         lpfc_sli_disable_intr(phba);
10937
10938         return;
10939 }
10940
10941 /**
10942  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10943  * @phba: Pointer to HBA context object.
10944  *
10945  * This function is called in the SLI4 code path to wait for completion
10946  * of device's XRIs exchange busy. It will check the XRI exchange busy
10947  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10948  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10949  * I/Os every 30 seconds, log error message, and wait forever. Only when
10950  * all XRI exchange busy complete, the driver unload shall proceed with
10951  * invoking the function reset ioctl mailbox command to the CNA and the
10952  * the rest of the driver unload resource release.
10953  **/
10954 static void
10955 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10956 {
10957         struct lpfc_sli4_hdw_queue *qp;
10958         int idx, ccnt, fcnt;
10959         int wait_time = 0;
10960         int io_xri_cmpl = 1;
10961         int nvmet_xri_cmpl = 1;
10962         int fcp_xri_cmpl = 1;
10963         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10964
10965         /* Driver just aborted IOs during the hba_unset process.  Pause
10966          * here to give the HBA time to complete the IO and get entries
10967          * into the abts lists.
10968          */
10969         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10970
10971         /* Wait for NVME pending IO to flush back to transport. */
10972         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10973                 lpfc_nvme_wait_for_io_drain(phba);
10974
10975         ccnt = 0;
10976         fcnt = 0;
10977         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10978                 qp = &phba->sli4_hba.hdwq[idx];
10979                 fcp_xri_cmpl = list_empty(
10980                         &qp->lpfc_abts_scsi_buf_list);
10981                 if (!fcp_xri_cmpl) /* if list is NOT empty */
10982                         fcnt++;
10983                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10984                         io_xri_cmpl = list_empty(
10985                                 &qp->lpfc_abts_nvme_buf_list);
10986                         if (!io_xri_cmpl) /* if list is NOT empty */
10987                                 ccnt++;
10988                 }
10989         }
10990         if (ccnt)
10991                 io_xri_cmpl = 0;
10992         if (fcnt)
10993                 fcp_xri_cmpl = 0;
10994
10995         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10996                 nvmet_xri_cmpl =
10997                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10998         }
10999
11000         while (!fcp_xri_cmpl || !els_xri_cmpl || !io_xri_cmpl ||
11001                !nvmet_xri_cmpl) {
11002                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11003                         if (!nvmet_xri_cmpl)
11004                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11005                                                 "6424 NVMET XRI exchange busy "
11006                                                 "wait time: %d seconds.\n",
11007                                                 wait_time/1000);
11008                         if (!io_xri_cmpl)
11009                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11010                                                 "6100 NVME XRI exchange busy "
11011                                                 "wait time: %d seconds.\n",
11012                                                 wait_time/1000);
11013                         if (!fcp_xri_cmpl)
11014                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11015                                                 "2877 FCP XRI exchange busy "
11016                                                 "wait time: %d seconds.\n",
11017                                                 wait_time/1000);
11018                         if (!els_xri_cmpl)
11019                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11020                                                 "2878 ELS XRI exchange busy "
11021                                                 "wait time: %d seconds.\n",
11022                                                 wait_time/1000);
11023                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11024                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11025                 } else {
11026                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11027                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11028                 }
11029
11030                 ccnt = 0;
11031                 fcnt = 0;
11032                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11033                         qp = &phba->sli4_hba.hdwq[idx];
11034                         fcp_xri_cmpl = list_empty(
11035                                 &qp->lpfc_abts_scsi_buf_list);
11036                         if (!fcp_xri_cmpl) /* if list is NOT empty */
11037                                 fcnt++;
11038                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11039                                 io_xri_cmpl = list_empty(
11040                                     &qp->lpfc_abts_nvme_buf_list);
11041                                 if (!io_xri_cmpl) /* if list is NOT empty */
11042                                         ccnt++;
11043                         }
11044                 }
11045                 if (ccnt)
11046                         io_xri_cmpl = 0;
11047                 if (fcnt)
11048                         fcp_xri_cmpl = 0;
11049
11050                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11051                         nvmet_xri_cmpl = list_empty(
11052                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11053                 }
11054                 els_xri_cmpl =
11055                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11056
11057         }
11058 }
11059
11060 /**
11061  * lpfc_sli4_hba_unset - Unset the fcoe hba
11062  * @phba: Pointer to HBA context object.
11063  *
11064  * This function is called in the SLI4 code path to reset the HBA's FCoE
11065  * function. The caller is not required to hold any lock. This routine
11066  * issues PCI function reset mailbox command to reset the FCoE function.
11067  * At the end of the function, it calls lpfc_hba_down_post function to
11068  * free any pending commands.
11069  **/
11070 static void
11071 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11072 {
11073         int wait_cnt = 0;
11074         LPFC_MBOXQ_t *mboxq;
11075         struct pci_dev *pdev = phba->pcidev;
11076
11077         lpfc_stop_hba_timers(phba);
11078         if (phba->pport)
11079                 phba->sli4_hba.intr_enable = 0;
11080
11081         /*
11082          * Gracefully wait out the potential current outstanding asynchronous
11083          * mailbox command.
11084          */
11085
11086         /* First, block any pending async mailbox command from posted */
11087         spin_lock_irq(&phba->hbalock);
11088         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11089         spin_unlock_irq(&phba->hbalock);
11090         /* Now, trying to wait it out if we can */
11091         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11092                 msleep(10);
11093                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11094                         break;
11095         }
11096         /* Forcefully release the outstanding mailbox command if timed out */
11097         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11098                 spin_lock_irq(&phba->hbalock);
11099                 mboxq = phba->sli.mbox_active;
11100                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11101                 __lpfc_mbox_cmpl_put(phba, mboxq);
11102                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11103                 phba->sli.mbox_active = NULL;
11104                 spin_unlock_irq(&phba->hbalock);
11105         }
11106
11107         /* Abort all iocbs associated with the hba */
11108         lpfc_sli_hba_iocb_abort(phba);
11109
11110         /* Wait for completion of device XRI exchange busy */
11111         lpfc_sli4_xri_exchange_busy_wait(phba);
11112
11113         /* Disable PCI subsystem interrupt */
11114         lpfc_sli4_disable_intr(phba);
11115
11116         /* Disable SR-IOV if enabled */
11117         if (phba->cfg_sriov_nr_virtfn)
11118                 pci_disable_sriov(pdev);
11119
11120         /* Stop kthread signal shall trigger work_done one more time */
11121         kthread_stop(phba->worker_thread);
11122
11123         /* Disable FW logging to host memory */
11124         lpfc_ras_stop_fwlog(phba);
11125
11126         /* Unset the queues shared with the hardware then release all
11127          * allocated resources.
11128          */
11129         lpfc_sli4_queue_unset(phba);
11130         lpfc_sli4_queue_destroy(phba);
11131
11132         /* Reset SLI4 HBA FCoE function */
11133         lpfc_pci_function_reset(phba);
11134
11135         /* Free RAS DMA memory */
11136         if (phba->ras_fwlog.ras_enabled)
11137                 lpfc_sli4_ras_dma_free(phba);
11138
11139         /* Stop the SLI4 device port */
11140         phba->pport->work_port_events = 0;
11141 }
11142
11143  /**
11144  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11145  * @phba: Pointer to HBA context object.
11146  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11147  *
11148  * This function is called in the SLI4 code path to read the port's
11149  * sli4 capabilities.
11150  *
11151  * This function may be be called from any context that can block-wait
11152  * for the completion.  The expectation is that this routine is called
11153  * typically from probe_one or from the online routine.
11154  **/
11155 int
11156 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11157 {
11158         int rc;
11159         struct lpfc_mqe *mqe;
11160         struct lpfc_pc_sli4_params *sli4_params;
11161         uint32_t mbox_tmo;
11162
11163         rc = 0;
11164         mqe = &mboxq->u.mqe;
11165
11166         /* Read the port's SLI4 Parameters port capabilities */
11167         lpfc_pc_sli4_params(mboxq);
11168         if (!phba->sli4_hba.intr_enable)
11169                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11170         else {
11171                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11172                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11173         }
11174
11175         if (unlikely(rc))
11176                 return 1;
11177
11178         sli4_params = &phba->sli4_hba.pc_sli4_params;
11179         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11180         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11181         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11182         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11183                                              &mqe->un.sli4_params);
11184         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11185                                              &mqe->un.sli4_params);
11186         sli4_params->proto_types = mqe->un.sli4_params.word3;
11187         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11188         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11189         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11190         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11191         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11192         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11193         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11194         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11195         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11196         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11197         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11198         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11199         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11200         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11201         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11202         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11203         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11204         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11205         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11206         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11207
11208         /* Make sure that sge_supp_len can be handled by the driver */
11209         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11210                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11211
11212         return rc;
11213 }
11214
11215 /**
11216  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11217  * @phba: Pointer to HBA context object.
11218  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11219  *
11220  * This function is called in the SLI4 code path to read the port's
11221  * sli4 capabilities.
11222  *
11223  * This function may be be called from any context that can block-wait
11224  * for the completion.  The expectation is that this routine is called
11225  * typically from probe_one or from the online routine.
11226  **/
11227 int
11228 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11229 {
11230         int rc;
11231         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11232         struct lpfc_pc_sli4_params *sli4_params;
11233         uint32_t mbox_tmo;
11234         int length;
11235         bool exp_wqcq_pages = true;
11236         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11237
11238         /*
11239          * By default, the driver assumes the SLI4 port requires RPI
11240          * header postings.  The SLI4_PARAM response will correct this
11241          * assumption.
11242          */
11243         phba->sli4_hba.rpi_hdrs_in_use = 1;
11244
11245         /* Read the port's SLI4 Config Parameters */
11246         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11247                   sizeof(struct lpfc_sli4_cfg_mhdr));
11248         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11249                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11250                          length, LPFC_SLI4_MBX_EMBED);
11251         if (!phba->sli4_hba.intr_enable)
11252                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11253         else {
11254                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11255                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11256         }
11257         if (unlikely(rc))
11258                 return rc;
11259         sli4_params = &phba->sli4_hba.pc_sli4_params;
11260         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11261         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11262         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11263         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11264         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11265                                              mbx_sli4_parameters);
11266         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11267                                              mbx_sli4_parameters);
11268         if (bf_get(cfg_phwq, mbx_sli4_parameters))
11269                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11270         else
11271                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11272         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11273         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11274         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11275         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11276         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11277         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11278         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11279         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11280         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11281         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11282         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11283         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11284                                             mbx_sli4_parameters);
11285         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11286         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11287                                            mbx_sli4_parameters);
11288         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11289         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11290         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11291                               bf_get(cfg_xib, mbx_sli4_parameters));
11292
11293         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
11294             !phba->nvme_support) {
11295                 phba->nvme_support = 0;
11296                 phba->nvmet_support = 0;
11297                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
11298                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11299                                 "6101 Disabling NVME support: "
11300                                 "Not supported by firmware: %d %d\n",
11301                                 bf_get(cfg_nvme, mbx_sli4_parameters),
11302                                 bf_get(cfg_xib, mbx_sli4_parameters));
11303
11304                 /* If firmware doesn't support NVME, just use SCSI support */
11305                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11306                         return -ENODEV;
11307                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11308         }
11309
11310         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11311         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11312             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11313                 phba->cfg_enable_pbde = 0;
11314
11315         /*
11316          * To support Suppress Response feature we must satisfy 3 conditions.
11317          * lpfc_suppress_rsp module parameter must be set (default).
11318          * In SLI4-Parameters Descriptor:
11319          * Extended Inline Buffers (XIB) must be supported.
11320          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11321          * (double negative).
11322          */
11323         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11324             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11325                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11326         else
11327                 phba->cfg_suppress_rsp = 0;
11328
11329         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11330                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11331
11332         /* Make sure that sge_supp_len can be handled by the driver */
11333         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11334                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11335
11336         /*
11337          * Check whether the adapter supports an embedded copy of the
11338          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11339          * to use this option, 128-byte WQEs must be used.
11340          */
11341         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11342                 phba->fcp_embed_io = 1;
11343         else
11344                 phba->fcp_embed_io = 0;
11345
11346         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11347                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11348                         bf_get(cfg_xib, mbx_sli4_parameters),
11349                         phba->cfg_enable_pbde,
11350                         phba->fcp_embed_io, phba->nvme_support,
11351                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11352
11353         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11354             LPFC_SLI_INTF_IF_TYPE_2) &&
11355             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11356                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
11357                 exp_wqcq_pages = false;
11358
11359         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11360             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11361             exp_wqcq_pages &&
11362             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11363                 phba->enab_exp_wqcq_pages = 1;
11364         else
11365                 phba->enab_exp_wqcq_pages = 0;
11366         /*
11367          * Check if the SLI port supports MDS Diagnostics
11368          */
11369         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11370                 phba->mds_diags_support = 1;
11371         else
11372                 phba->mds_diags_support = 0;
11373
11374         return 0;
11375 }
11376
11377 /**
11378  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11379  * @pdev: pointer to PCI device
11380  * @pid: pointer to PCI device identifier
11381  *
11382  * This routine is to be called to attach a device with SLI-3 interface spec
11383  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11384  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11385  * information of the device and driver to see if the driver state that it can
11386  * support this kind of device. If the match is successful, the driver core
11387  * invokes this routine. If this routine determines it can claim the HBA, it
11388  * does all the initialization that it needs to do to handle the HBA properly.
11389  *
11390  * Return code
11391  *      0 - driver can claim the device
11392  *      negative value - driver can not claim the device
11393  **/
11394 static int
11395 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11396 {
11397         struct lpfc_hba   *phba;
11398         struct lpfc_vport *vport = NULL;
11399         struct Scsi_Host  *shost = NULL;
11400         int error;
11401         uint32_t cfg_mode, intr_mode;
11402
11403         /* Allocate memory for HBA structure */
11404         phba = lpfc_hba_alloc(pdev);
11405         if (!phba)
11406                 return -ENOMEM;
11407
11408         /* Perform generic PCI device enabling operation */
11409         error = lpfc_enable_pci_dev(phba);
11410         if (error)
11411                 goto out_free_phba;
11412
11413         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11414         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11415         if (error)
11416                 goto out_disable_pci_dev;
11417
11418         /* Set up SLI-3 specific device PCI memory space */
11419         error = lpfc_sli_pci_mem_setup(phba);
11420         if (error) {
11421                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11422                                 "1402 Failed to set up pci memory space.\n");
11423                 goto out_disable_pci_dev;
11424         }
11425
11426         /* Set up SLI-3 specific device driver resources */
11427         error = lpfc_sli_driver_resource_setup(phba);
11428         if (error) {
11429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11430                                 "1404 Failed to set up driver resource.\n");
11431                 goto out_unset_pci_mem_s3;
11432         }
11433
11434         /* Initialize and populate the iocb list per host */
11435
11436         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11437         if (error) {
11438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11439                                 "1405 Failed to initialize iocb list.\n");
11440                 goto out_unset_driver_resource_s3;
11441         }
11442
11443         /* Set up common device driver resources */
11444         error = lpfc_setup_driver_resource_phase2(phba);
11445         if (error) {
11446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11447                                 "1406 Failed to set up driver resource.\n");
11448                 goto out_free_iocb_list;
11449         }
11450
11451         /* Get the default values for Model Name and Description */
11452         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11453
11454         /* Create SCSI host to the physical port */
11455         error = lpfc_create_shost(phba);
11456         if (error) {
11457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11458                                 "1407 Failed to create scsi host.\n");
11459                 goto out_unset_driver_resource;
11460         }
11461
11462         /* Configure sysfs attributes */
11463         vport = phba->pport;
11464         error = lpfc_alloc_sysfs_attr(vport);
11465         if (error) {
11466                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11467                                 "1476 Failed to allocate sysfs attr\n");
11468                 goto out_destroy_shost;
11469         }
11470
11471         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11472         /* Now, trying to enable interrupt and bring up the device */
11473         cfg_mode = phba->cfg_use_msi;
11474         while (true) {
11475                 /* Put device to a known state before enabling interrupt */
11476                 lpfc_stop_port(phba);
11477                 /* Configure and enable interrupt */
11478                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11479                 if (intr_mode == LPFC_INTR_ERROR) {
11480                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11481                                         "0431 Failed to enable interrupt.\n");
11482                         error = -ENODEV;
11483                         goto out_free_sysfs_attr;
11484                 }
11485                 /* SLI-3 HBA setup */
11486                 if (lpfc_sli_hba_setup(phba)) {
11487                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11488                                         "1477 Failed to set up hba\n");
11489                         error = -ENODEV;
11490                         goto out_remove_device;
11491                 }
11492
11493                 /* Wait 50ms for the interrupts of previous mailbox commands */
11494                 msleep(50);
11495                 /* Check active interrupts on message signaled interrupts */
11496                 if (intr_mode == 0 ||
11497                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11498                         /* Log the current active interrupt mode */
11499                         phba->intr_mode = intr_mode;
11500                         lpfc_log_intr_mode(phba, intr_mode);
11501                         break;
11502                 } else {
11503                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11504                                         "0447 Configure interrupt mode (%d) "
11505                                         "failed active interrupt test.\n",
11506                                         intr_mode);
11507                         /* Disable the current interrupt mode */
11508                         lpfc_sli_disable_intr(phba);
11509                         /* Try next level of interrupt mode */
11510                         cfg_mode = --intr_mode;
11511                 }
11512         }
11513
11514         /* Perform post initialization setup */
11515         lpfc_post_init_setup(phba);
11516
11517         /* Check if there are static vports to be created. */
11518         lpfc_create_static_vport(phba);
11519
11520         return 0;
11521
11522 out_remove_device:
11523         lpfc_unset_hba(phba);
11524 out_free_sysfs_attr:
11525         lpfc_free_sysfs_attr(vport);
11526 out_destroy_shost:
11527         lpfc_destroy_shost(phba);
11528 out_unset_driver_resource:
11529         lpfc_unset_driver_resource_phase2(phba);
11530 out_free_iocb_list:
11531         lpfc_free_iocb_list(phba);
11532 out_unset_driver_resource_s3:
11533         lpfc_sli_driver_resource_unset(phba);
11534 out_unset_pci_mem_s3:
11535         lpfc_sli_pci_mem_unset(phba);
11536 out_disable_pci_dev:
11537         lpfc_disable_pci_dev(phba);
11538         if (shost)
11539                 scsi_host_put(shost);
11540 out_free_phba:
11541         lpfc_hba_free(phba);
11542         return error;
11543 }
11544
11545 /**
11546  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11547  * @pdev: pointer to PCI device
11548  *
11549  * This routine is to be called to disattach a device with SLI-3 interface
11550  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11551  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11552  * device to be removed from the PCI subsystem properly.
11553  **/
11554 static void
11555 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11556 {
11557         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11558         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11559         struct lpfc_vport **vports;
11560         struct lpfc_hba   *phba = vport->phba;
11561         int i;
11562
11563         spin_lock_irq(&phba->hbalock);
11564         vport->load_flag |= FC_UNLOADING;
11565         spin_unlock_irq(&phba->hbalock);
11566
11567         lpfc_free_sysfs_attr(vport);
11568
11569         /* Release all the vports against this physical port */
11570         vports = lpfc_create_vport_work_array(phba);
11571         if (vports != NULL)
11572                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11573                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11574                                 continue;
11575                         fc_vport_terminate(vports[i]->fc_vport);
11576                 }
11577         lpfc_destroy_vport_work_array(phba, vports);
11578
11579         /* Remove FC host and then SCSI host with the physical port */
11580         fc_remove_host(shost);
11581         scsi_remove_host(shost);
11582
11583         lpfc_cleanup(vport);
11584
11585         /*
11586          * Bring down the SLI Layer. This step disable all interrupts,
11587          * clears the rings, discards all mailbox commands, and resets
11588          * the HBA.
11589          */
11590
11591         /* HBA interrupt will be disabled after this call */
11592         lpfc_sli_hba_down(phba);
11593         /* Stop kthread signal shall trigger work_done one more time */
11594         kthread_stop(phba->worker_thread);
11595         /* Final cleanup of txcmplq and reset the HBA */
11596         lpfc_sli_brdrestart(phba);
11597
11598         kfree(phba->vpi_bmask);
11599         kfree(phba->vpi_ids);
11600
11601         lpfc_stop_hba_timers(phba);
11602         spin_lock_irq(&phba->port_list_lock);
11603         list_del_init(&vport->listentry);
11604         spin_unlock_irq(&phba->port_list_lock);
11605
11606         lpfc_debugfs_terminate(vport);
11607
11608         /* Disable SR-IOV if enabled */
11609         if (phba->cfg_sriov_nr_virtfn)
11610                 pci_disable_sriov(pdev);
11611
11612         /* Disable interrupt */
11613         lpfc_sli_disable_intr(phba);
11614
11615         scsi_host_put(shost);
11616
11617         /*
11618          * Call scsi_free before mem_free since scsi bufs are released to their
11619          * corresponding pools here.
11620          */
11621         lpfc_scsi_free(phba);
11622         lpfc_free_iocb_list(phba);
11623
11624         lpfc_mem_free_all(phba);
11625
11626         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11627                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11628
11629         /* Free resources associated with SLI2 interface */
11630         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11631                           phba->slim2p.virt, phba->slim2p.phys);
11632
11633         /* unmap adapter SLIM and Control Registers */
11634         iounmap(phba->ctrl_regs_memmap_p);
11635         iounmap(phba->slim_memmap_p);
11636
11637         lpfc_hba_free(phba);
11638
11639         pci_release_mem_regions(pdev);
11640         pci_disable_device(pdev);
11641 }
11642
11643 /**
11644  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11645  * @pdev: pointer to PCI device
11646  * @msg: power management message
11647  *
11648  * This routine is to be called from the kernel's PCI subsystem to support
11649  * system Power Management (PM) to device with SLI-3 interface spec. When
11650  * PM invokes this method, it quiesces the device by stopping the driver's
11651  * worker thread for the device, turning off device's interrupt and DMA,
11652  * and bring the device offline. Note that as the driver implements the
11653  * minimum PM requirements to a power-aware driver's PM support for the
11654  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11655  * to the suspend() method call will be treated as SUSPEND and the driver will
11656  * fully reinitialize its device during resume() method call, the driver will
11657  * set device to PCI_D3hot state in PCI config space instead of setting it
11658  * according to the @msg provided by the PM.
11659  *
11660  * Return code
11661  *      0 - driver suspended the device
11662  *      Error otherwise
11663  **/
11664 static int
11665 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11666 {
11667         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11668         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11669
11670         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11671                         "0473 PCI device Power Management suspend.\n");
11672
11673         /* Bring down the device */
11674         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11675         lpfc_offline(phba);
11676         kthread_stop(phba->worker_thread);
11677
11678         /* Disable interrupt from device */
11679         lpfc_sli_disable_intr(phba);
11680
11681         /* Save device state to PCI config space */
11682         pci_save_state(pdev);
11683         pci_set_power_state(pdev, PCI_D3hot);
11684
11685         return 0;
11686 }
11687
11688 /**
11689  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11690  * @pdev: pointer to PCI device
11691  *
11692  * This routine is to be called from the kernel's PCI subsystem to support
11693  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11694  * invokes this method, it restores the device's PCI config space state and
11695  * fully reinitializes the device and brings it online. Note that as the
11696  * driver implements the minimum PM requirements to a power-aware driver's
11697  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11698  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11699  * driver will fully reinitialize its device during resume() method call,
11700  * the device will be set to PCI_D0 directly in PCI config space before
11701  * restoring the state.
11702  *
11703  * Return code
11704  *      0 - driver suspended the device
11705  *      Error otherwise
11706  **/
11707 static int
11708 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11709 {
11710         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11711         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11712         uint32_t intr_mode;
11713         int error;
11714
11715         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11716                         "0452 PCI device Power Management resume.\n");
11717
11718         /* Restore device state from PCI config space */
11719         pci_set_power_state(pdev, PCI_D0);
11720         pci_restore_state(pdev);
11721
11722         /*
11723          * As the new kernel behavior of pci_restore_state() API call clears
11724          * device saved_state flag, need to save the restored state again.
11725          */
11726         pci_save_state(pdev);
11727
11728         if (pdev->is_busmaster)
11729                 pci_set_master(pdev);
11730
11731         /* Startup the kernel thread for this host adapter. */
11732         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11733                                         "lpfc_worker_%d", phba->brd_no);
11734         if (IS_ERR(phba->worker_thread)) {
11735                 error = PTR_ERR(phba->worker_thread);
11736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11737                                 "0434 PM resume failed to start worker "
11738                                 "thread: error=x%x.\n", error);
11739                 return error;
11740         }
11741
11742         /* Configure and enable interrupt */
11743         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11744         if (intr_mode == LPFC_INTR_ERROR) {
11745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11746                                 "0430 PM resume Failed to enable interrupt\n");
11747                 return -EIO;
11748         } else
11749                 phba->intr_mode = intr_mode;
11750
11751         /* Restart HBA and bring it online */
11752         lpfc_sli_brdrestart(phba);
11753         lpfc_online(phba);
11754
11755         /* Log the current active interrupt mode */
11756         lpfc_log_intr_mode(phba, phba->intr_mode);
11757
11758         return 0;
11759 }
11760
11761 /**
11762  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11763  * @phba: pointer to lpfc hba data structure.
11764  *
11765  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11766  * aborts all the outstanding SCSI I/Os to the pci device.
11767  **/
11768 static void
11769 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11770 {
11771         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11772                         "2723 PCI channel I/O abort preparing for recovery\n");
11773
11774         /*
11775          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11776          * and let the SCSI mid-layer to retry them to recover.
11777          */
11778         lpfc_sli_abort_fcp_rings(phba);
11779 }
11780
11781 /**
11782  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11783  * @phba: pointer to lpfc hba data structure.
11784  *
11785  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11786  * disables the device interrupt and pci device, and aborts the internal FCP
11787  * pending I/Os.
11788  **/
11789 static void
11790 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11791 {
11792         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11793                         "2710 PCI channel disable preparing for reset\n");
11794
11795         /* Block any management I/Os to the device */
11796         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11797
11798         /* Block all SCSI devices' I/Os on the host */
11799         lpfc_scsi_dev_block(phba);
11800
11801         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11802         lpfc_sli_flush_fcp_rings(phba);
11803
11804         /* stop all timers */
11805         lpfc_stop_hba_timers(phba);
11806
11807         /* Disable interrupt and pci device */
11808         lpfc_sli_disable_intr(phba);
11809         pci_disable_device(phba->pcidev);
11810 }
11811
11812 /**
11813  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11814  * @phba: pointer to lpfc hba data structure.
11815  *
11816  * This routine is called to prepare the SLI3 device for PCI slot permanently
11817  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11818  * pending I/Os.
11819  **/
11820 static void
11821 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11822 {
11823         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11824                         "2711 PCI channel permanent disable for failure\n");
11825         /* Block all SCSI devices' I/Os on the host */
11826         lpfc_scsi_dev_block(phba);
11827
11828         /* stop all timers */
11829         lpfc_stop_hba_timers(phba);
11830
11831         /* Clean up all driver's outstanding SCSI I/Os */
11832         lpfc_sli_flush_fcp_rings(phba);
11833 }
11834
11835 /**
11836  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11837  * @pdev: pointer to PCI device.
11838  * @state: the current PCI connection state.
11839  *
11840  * This routine is called from the PCI subsystem for I/O error handling to
11841  * device with SLI-3 interface spec. This function is called by the PCI
11842  * subsystem after a PCI bus error affecting this device has been detected.
11843  * When this function is invoked, it will need to stop all the I/Os and
11844  * interrupt(s) to the device. Once that is done, it will return
11845  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11846  * as desired.
11847  *
11848  * Return codes
11849  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11850  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11851  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11852  **/
11853 static pci_ers_result_t
11854 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11855 {
11856         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11857         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11858
11859         switch (state) {
11860         case pci_channel_io_normal:
11861                 /* Non-fatal error, prepare for recovery */
11862                 lpfc_sli_prep_dev_for_recover(phba);
11863                 return PCI_ERS_RESULT_CAN_RECOVER;
11864         case pci_channel_io_frozen:
11865                 /* Fatal error, prepare for slot reset */
11866                 lpfc_sli_prep_dev_for_reset(phba);
11867                 return PCI_ERS_RESULT_NEED_RESET;
11868         case pci_channel_io_perm_failure:
11869                 /* Permanent failure, prepare for device down */
11870                 lpfc_sli_prep_dev_for_perm_failure(phba);
11871                 return PCI_ERS_RESULT_DISCONNECT;
11872         default:
11873                 /* Unknown state, prepare and request slot reset */
11874                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11875                                 "0472 Unknown PCI error state: x%x\n", state);
11876                 lpfc_sli_prep_dev_for_reset(phba);
11877                 return PCI_ERS_RESULT_NEED_RESET;
11878         }
11879 }
11880
11881 /**
11882  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11883  * @pdev: pointer to PCI device.
11884  *
11885  * This routine is called from the PCI subsystem for error handling to
11886  * device with SLI-3 interface spec. This is called after PCI bus has been
11887  * reset to restart the PCI card from scratch, as if from a cold-boot.
11888  * During the PCI subsystem error recovery, after driver returns
11889  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11890  * recovery and then call this routine before calling the .resume method
11891  * to recover the device. This function will initialize the HBA device,
11892  * enable the interrupt, but it will just put the HBA to offline state
11893  * without passing any I/O traffic.
11894  *
11895  * Return codes
11896  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11897  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11898  */
11899 static pci_ers_result_t
11900 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11901 {
11902         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11903         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11904         struct lpfc_sli *psli = &phba->sli;
11905         uint32_t intr_mode;
11906
11907         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11908         if (pci_enable_device_mem(pdev)) {
11909                 printk(KERN_ERR "lpfc: Cannot re-enable "
11910                         "PCI device after reset.\n");
11911                 return PCI_ERS_RESULT_DISCONNECT;
11912         }
11913
11914         pci_restore_state(pdev);
11915
11916         /*
11917          * As the new kernel behavior of pci_restore_state() API call clears
11918          * device saved_state flag, need to save the restored state again.
11919          */
11920         pci_save_state(pdev);
11921
11922         if (pdev->is_busmaster)
11923                 pci_set_master(pdev);
11924
11925         spin_lock_irq(&phba->hbalock);
11926         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11927         spin_unlock_irq(&phba->hbalock);
11928
11929         /* Configure and enable interrupt */
11930         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11931         if (intr_mode == LPFC_INTR_ERROR) {
11932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11933                                 "0427 Cannot re-enable interrupt after "
11934                                 "slot reset.\n");
11935                 return PCI_ERS_RESULT_DISCONNECT;
11936         } else
11937                 phba->intr_mode = intr_mode;
11938
11939         /* Take device offline, it will perform cleanup */
11940         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11941         lpfc_offline(phba);
11942         lpfc_sli_brdrestart(phba);
11943
11944         /* Log the current active interrupt mode */
11945         lpfc_log_intr_mode(phba, phba->intr_mode);
11946
11947         return PCI_ERS_RESULT_RECOVERED;
11948 }
11949
11950 /**
11951  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11952  * @pdev: pointer to PCI device
11953  *
11954  * This routine is called from the PCI subsystem for error handling to device
11955  * with SLI-3 interface spec. It is called when kernel error recovery tells
11956  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11957  * error recovery. After this call, traffic can start to flow from this device
11958  * again.
11959  */
11960 static void
11961 lpfc_io_resume_s3(struct pci_dev *pdev)
11962 {
11963         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11964         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11965
11966         /* Bring device online, it will be no-op for non-fatal error resume */
11967         lpfc_online(phba);
11968 }
11969
11970 /**
11971  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11972  * @phba: pointer to lpfc hba data structure.
11973  *
11974  * returns the number of ELS/CT IOCBs to reserve
11975  **/
11976 int
11977 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11978 {
11979         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11980
11981         if (phba->sli_rev == LPFC_SLI_REV4) {
11982                 if (max_xri <= 100)
11983                         return 10;
11984                 else if (max_xri <= 256)
11985                         return 25;
11986                 else if (max_xri <= 512)
11987                         return 50;
11988                 else if (max_xri <= 1024)
11989                         return 100;
11990                 else if (max_xri <= 1536)
11991                         return 150;
11992                 else if (max_xri <= 2048)
11993                         return 200;
11994                 else
11995                         return 250;
11996         } else
11997                 return 0;
11998 }
11999
12000 /**
12001  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12002  * @phba: pointer to lpfc hba data structure.
12003  *
12004  * returns the number of ELS/CT + NVMET IOCBs to reserve
12005  **/
12006 int
12007 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12008 {
12009         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12010
12011         if (phba->nvmet_support)
12012                 max_xri += LPFC_NVMET_BUF_POST;
12013         return max_xri;
12014 }
12015
12016
12017 static void
12018 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12019         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12020         const struct firmware *fw)
12021 {
12022         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12023             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12024              magic_number != MAGIC_NUMER_G6) ||
12025             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12026              magic_number != MAGIC_NUMER_G7))
12027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12028                         "3030 This firmware version is not supported on "
12029                         "this HBA model. Device:%x Magic:%x Type:%x "
12030                         "ID:%x Size %d %zd\n",
12031                         phba->pcidev->device, magic_number, ftype, fid,
12032                         fsize, fw->size);
12033         else
12034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12035                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12036                         "ID:%x Size %d %zd\n",
12037                         phba->pcidev->device, magic_number, ftype, fid,
12038                         fsize, fw->size);
12039 }
12040
12041
12042 /**
12043  * lpfc_write_firmware - attempt to write a firmware image to the port
12044  * @fw: pointer to firmware image returned from request_firmware.
12045  * @phba: pointer to lpfc hba data structure.
12046  *
12047  **/
12048 static void
12049 lpfc_write_firmware(const struct firmware *fw, void *context)
12050 {
12051         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12052         char fwrev[FW_REV_STR_SIZE];
12053         struct lpfc_grp_hdr *image;
12054         struct list_head dma_buffer_list;
12055         int i, rc = 0;
12056         struct lpfc_dmabuf *dmabuf, *next;
12057         uint32_t offset = 0, temp_offset = 0;
12058         uint32_t magic_number, ftype, fid, fsize;
12059
12060         /* It can be null in no-wait mode, sanity check */
12061         if (!fw) {
12062                 rc = -ENXIO;
12063                 goto out;
12064         }
12065         image = (struct lpfc_grp_hdr *)fw->data;
12066
12067         magic_number = be32_to_cpu(image->magic_number);
12068         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12069         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12070         fsize = be32_to_cpu(image->size);
12071
12072         INIT_LIST_HEAD(&dma_buffer_list);
12073         lpfc_decode_firmware_rev(phba, fwrev, 1);
12074         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12076                                 "3023 Updating Firmware, Current Version:%s "
12077                                 "New Version:%s\n",
12078                                 fwrev, image->revision);
12079                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12080                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12081                                          GFP_KERNEL);
12082                         if (!dmabuf) {
12083                                 rc = -ENOMEM;
12084                                 goto release_out;
12085                         }
12086                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12087                                                           SLI4_PAGE_SIZE,
12088                                                           &dmabuf->phys,
12089                                                           GFP_KERNEL);
12090                         if (!dmabuf->virt) {
12091                                 kfree(dmabuf);
12092                                 rc = -ENOMEM;
12093                                 goto release_out;
12094                         }
12095                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12096                 }
12097                 while (offset < fw->size) {
12098                         temp_offset = offset;
12099                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12100                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12101                                         memcpy(dmabuf->virt,
12102                                                fw->data + temp_offset,
12103                                                fw->size - temp_offset);
12104                                         temp_offset = fw->size;
12105                                         break;
12106                                 }
12107                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12108                                        SLI4_PAGE_SIZE);
12109                                 temp_offset += SLI4_PAGE_SIZE;
12110                         }
12111                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12112                                     (fw->size - offset), &offset);
12113                         if (rc) {
12114                                 lpfc_log_write_firmware_error(phba, offset,
12115                                         magic_number, ftype, fid, fsize, fw);
12116                                 goto release_out;
12117                         }
12118                 }
12119                 rc = offset;
12120         } else
12121                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12122                                 "3029 Skipped Firmware update, Current "
12123                                 "Version:%s New Version:%s\n",
12124                                 fwrev, image->revision);
12125
12126 release_out:
12127         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12128                 list_del(&dmabuf->list);
12129                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12130                                   dmabuf->virt, dmabuf->phys);
12131                 kfree(dmabuf);
12132         }
12133         release_firmware(fw);
12134 out:
12135         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12136                         "3024 Firmware update done: %d.\n", rc);
12137         return;
12138 }
12139
12140 /**
12141  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12142  * @phba: pointer to lpfc hba data structure.
12143  *
12144  * This routine is called to perform Linux generic firmware upgrade on device
12145  * that supports such feature.
12146  **/
12147 int
12148 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12149 {
12150         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12151         int ret;
12152         const struct firmware *fw;
12153
12154         /* Only supported on SLI4 interface type 2 for now */
12155         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12156             LPFC_SLI_INTF_IF_TYPE_2)
12157                 return -EPERM;
12158
12159         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12160
12161         if (fw_upgrade == INT_FW_UPGRADE) {
12162                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12163                                         file_name, &phba->pcidev->dev,
12164                                         GFP_KERNEL, (void *)phba,
12165                                         lpfc_write_firmware);
12166         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12167                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12168                 if (!ret)
12169                         lpfc_write_firmware(fw, (void *)phba);
12170         } else {
12171                 ret = -EINVAL;
12172         }
12173
12174         return ret;
12175 }
12176
12177 /**
12178  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12179  * @pdev: pointer to PCI device
12180  * @pid: pointer to PCI device identifier
12181  *
12182  * This routine is called from the kernel's PCI subsystem to device with
12183  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12184  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12185  * information of the device and driver to see if the driver state that it
12186  * can support this kind of device. If the match is successful, the driver
12187  * core invokes this routine. If this routine determines it can claim the HBA,
12188  * it does all the initialization that it needs to do to handle the HBA
12189  * properly.
12190  *
12191  * Return code
12192  *      0 - driver can claim the device
12193  *      negative value - driver can not claim the device
12194  **/
12195 static int
12196 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12197 {
12198         struct lpfc_hba   *phba;
12199         struct lpfc_vport *vport = NULL;
12200         struct Scsi_Host  *shost = NULL;
12201         int error;
12202         uint32_t cfg_mode, intr_mode;
12203
12204         /* Allocate memory for HBA structure */
12205         phba = lpfc_hba_alloc(pdev);
12206         if (!phba)
12207                 return -ENOMEM;
12208
12209         /* Perform generic PCI device enabling operation */
12210         error = lpfc_enable_pci_dev(phba);
12211         if (error)
12212                 goto out_free_phba;
12213
12214         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12215         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12216         if (error)
12217                 goto out_disable_pci_dev;
12218
12219         /* Set up SLI-4 specific device PCI memory space */
12220         error = lpfc_sli4_pci_mem_setup(phba);
12221         if (error) {
12222                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12223                                 "1410 Failed to set up pci memory space.\n");
12224                 goto out_disable_pci_dev;
12225         }
12226
12227         /* Set up SLI-4 Specific device driver resources */
12228         error = lpfc_sli4_driver_resource_setup(phba);
12229         if (error) {
12230                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12231                                 "1412 Failed to set up driver resource.\n");
12232                 goto out_unset_pci_mem_s4;
12233         }
12234
12235         INIT_LIST_HEAD(&phba->active_rrq_list);
12236         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12237
12238         /* Set up common device driver resources */
12239         error = lpfc_setup_driver_resource_phase2(phba);
12240         if (error) {
12241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12242                                 "1414 Failed to set up driver resource.\n");
12243                 goto out_unset_driver_resource_s4;
12244         }
12245
12246         /* Get the default values for Model Name and Description */
12247         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12248
12249         /* Now, trying to enable interrupt and bring up the device */
12250         cfg_mode = phba->cfg_use_msi;
12251
12252         /* Put device to a known state before enabling interrupt */
12253         phba->pport = NULL;
12254         lpfc_stop_port(phba);
12255
12256         /* Configure and enable interrupt */
12257         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12258         if (intr_mode == LPFC_INTR_ERROR) {
12259                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12260                                 "0426 Failed to enable interrupt.\n");
12261                 error = -ENODEV;
12262                 goto out_unset_driver_resource;
12263         }
12264         /* Default to single EQ for non-MSI-X */
12265         if (phba->intr_type != MSIX) {
12266                 phba->cfg_irq_chann = 1;
12267                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12268                         if (phba->nvmet_support)
12269                                 phba->cfg_nvmet_mrq = 1;
12270                 }
12271         }
12272         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12273
12274         /* Create SCSI host to the physical port */
12275         error = lpfc_create_shost(phba);
12276         if (error) {
12277                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12278                                 "1415 Failed to create scsi host.\n");
12279                 goto out_disable_intr;
12280         }
12281         vport = phba->pport;
12282         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12283
12284         /* Configure sysfs attributes */
12285         error = lpfc_alloc_sysfs_attr(vport);
12286         if (error) {
12287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12288                                 "1416 Failed to allocate sysfs attr\n");
12289                 goto out_destroy_shost;
12290         }
12291
12292         /* Set up SLI-4 HBA */
12293         if (lpfc_sli4_hba_setup(phba)) {
12294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12295                                 "1421 Failed to set up hba\n");
12296                 error = -ENODEV;
12297                 goto out_free_sysfs_attr;
12298         }
12299
12300         /* Log the current active interrupt mode */
12301         phba->intr_mode = intr_mode;
12302         lpfc_log_intr_mode(phba, intr_mode);
12303
12304         /* Perform post initialization setup */
12305         lpfc_post_init_setup(phba);
12306
12307         /* NVME support in FW earlier in the driver load corrects the
12308          * FC4 type making a check for nvme_support unnecessary.
12309          */
12310         if (phba->nvmet_support == 0) {
12311                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12312                         /* Create NVME binding with nvme_fc_transport. This
12313                          * ensures the vport is initialized.  If the localport
12314                          * create fails, it should not unload the driver to
12315                          * support field issues.
12316                          */
12317                         error = lpfc_nvme_create_localport(vport);
12318                         if (error) {
12319                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12320                                                 "6004 NVME registration "
12321                                                 "failed, error x%x\n",
12322                                                 error);
12323                         }
12324                 }
12325         }
12326
12327         /* check for firmware upgrade or downgrade */
12328         if (phba->cfg_request_firmware_upgrade)
12329                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12330
12331         /* Check if there are static vports to be created. */
12332         lpfc_create_static_vport(phba);
12333
12334         /* Enable RAS FW log support */
12335         lpfc_sli4_ras_setup(phba);
12336
12337         return 0;
12338
12339 out_free_sysfs_attr:
12340         lpfc_free_sysfs_attr(vport);
12341 out_destroy_shost:
12342         lpfc_destroy_shost(phba);
12343 out_disable_intr:
12344         lpfc_sli4_disable_intr(phba);
12345 out_unset_driver_resource:
12346         lpfc_unset_driver_resource_phase2(phba);
12347 out_unset_driver_resource_s4:
12348         lpfc_sli4_driver_resource_unset(phba);
12349 out_unset_pci_mem_s4:
12350         lpfc_sli4_pci_mem_unset(phba);
12351 out_disable_pci_dev:
12352         lpfc_disable_pci_dev(phba);
12353         if (shost)
12354                 scsi_host_put(shost);
12355 out_free_phba:
12356         lpfc_hba_free(phba);
12357         return error;
12358 }
12359
12360 /**
12361  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12362  * @pdev: pointer to PCI device
12363  *
12364  * This routine is called from the kernel's PCI subsystem to device with
12365  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12366  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12367  * device to be removed from the PCI subsystem properly.
12368  **/
12369 static void
12370 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12371 {
12372         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12373         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12374         struct lpfc_vport **vports;
12375         struct lpfc_hba *phba = vport->phba;
12376         int i;
12377
12378         /* Mark the device unloading flag */
12379         spin_lock_irq(&phba->hbalock);
12380         vport->load_flag |= FC_UNLOADING;
12381         spin_unlock_irq(&phba->hbalock);
12382
12383         /* Free the HBA sysfs attributes */
12384         lpfc_free_sysfs_attr(vport);
12385
12386         /* Release all the vports against this physical port */
12387         vports = lpfc_create_vport_work_array(phba);
12388         if (vports != NULL)
12389                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12390                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12391                                 continue;
12392                         fc_vport_terminate(vports[i]->fc_vport);
12393                 }
12394         lpfc_destroy_vport_work_array(phba, vports);
12395
12396         /* Remove FC host and then SCSI host with the physical port */
12397         fc_remove_host(shost);
12398         scsi_remove_host(shost);
12399
12400         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12401          * localports are destroyed after to cleanup all transport memory.
12402          */
12403         lpfc_cleanup(vport);
12404         lpfc_nvmet_destroy_targetport(phba);
12405         lpfc_nvme_destroy_localport(vport);
12406
12407         /* De-allocate multi-XRI pools */
12408         if (phba->cfg_xri_rebalancing)
12409                 lpfc_destroy_multixri_pools(phba);
12410
12411         /*
12412          * Bring down the SLI Layer. This step disables all interrupts,
12413          * clears the rings, discards all mailbox commands, and resets
12414          * the HBA FCoE function.
12415          */
12416         lpfc_debugfs_terminate(vport);
12417
12418         lpfc_stop_hba_timers(phba);
12419         spin_lock_irq(&phba->port_list_lock);
12420         list_del_init(&vport->listentry);
12421         spin_unlock_irq(&phba->port_list_lock);
12422
12423         /* Perform scsi free before driver resource_unset since scsi
12424          * buffers are released to their corresponding pools here.
12425          */
12426         lpfc_io_free(phba);
12427         lpfc_free_iocb_list(phba);
12428         lpfc_sli4_hba_unset(phba);
12429
12430         lpfc_unset_driver_resource_phase2(phba);
12431         lpfc_sli4_driver_resource_unset(phba);
12432
12433         /* Unmap adapter Control and Doorbell registers */
12434         lpfc_sli4_pci_mem_unset(phba);
12435
12436         /* Release PCI resources and disable device's PCI function */
12437         scsi_host_put(shost);
12438         lpfc_disable_pci_dev(phba);
12439
12440         /* Finally, free the driver's device data structure */
12441         lpfc_hba_free(phba);
12442
12443         return;
12444 }
12445
12446 /**
12447  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12448  * @pdev: pointer to PCI device
12449  * @msg: power management message
12450  *
12451  * This routine is called from the kernel's PCI subsystem to support system
12452  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12453  * this method, it quiesces the device by stopping the driver's worker
12454  * thread for the device, turning off device's interrupt and DMA, and bring
12455  * the device offline. Note that as the driver implements the minimum PM
12456  * requirements to a power-aware driver's PM support for suspend/resume -- all
12457  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12458  * method call will be treated as SUSPEND and the driver will fully
12459  * reinitialize its device during resume() method call, the driver will set
12460  * device to PCI_D3hot state in PCI config space instead of setting it
12461  * according to the @msg provided by the PM.
12462  *
12463  * Return code
12464  *      0 - driver suspended the device
12465  *      Error otherwise
12466  **/
12467 static int
12468 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12469 {
12470         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12471         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12472
12473         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12474                         "2843 PCI device Power Management suspend.\n");
12475
12476         /* Bring down the device */
12477         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12478         lpfc_offline(phba);
12479         kthread_stop(phba->worker_thread);
12480
12481         /* Disable interrupt from device */
12482         lpfc_sli4_disable_intr(phba);
12483         lpfc_sli4_queue_destroy(phba);
12484
12485         /* Save device state to PCI config space */
12486         pci_save_state(pdev);
12487         pci_set_power_state(pdev, PCI_D3hot);
12488
12489         return 0;
12490 }
12491
12492 /**
12493  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12494  * @pdev: pointer to PCI device
12495  *
12496  * This routine is called from the kernel's PCI subsystem to support system
12497  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12498  * this method, it restores the device's PCI config space state and fully
12499  * reinitializes the device and brings it online. Note that as the driver
12500  * implements the minimum PM requirements to a power-aware driver's PM for
12501  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12502  * to the suspend() method call will be treated as SUSPEND and the driver
12503  * will fully reinitialize its device during resume() method call, the device
12504  * will be set to PCI_D0 directly in PCI config space before restoring the
12505  * state.
12506  *
12507  * Return code
12508  *      0 - driver suspended the device
12509  *      Error otherwise
12510  **/
12511 static int
12512 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12513 {
12514         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12515         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12516         uint32_t intr_mode;
12517         int error;
12518
12519         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12520                         "0292 PCI device Power Management resume.\n");
12521
12522         /* Restore device state from PCI config space */
12523         pci_set_power_state(pdev, PCI_D0);
12524         pci_restore_state(pdev);
12525
12526         /*
12527          * As the new kernel behavior of pci_restore_state() API call clears
12528          * device saved_state flag, need to save the restored state again.
12529          */
12530         pci_save_state(pdev);
12531
12532         if (pdev->is_busmaster)
12533                 pci_set_master(pdev);
12534
12535          /* Startup the kernel thread for this host adapter. */
12536         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12537                                         "lpfc_worker_%d", phba->brd_no);
12538         if (IS_ERR(phba->worker_thread)) {
12539                 error = PTR_ERR(phba->worker_thread);
12540                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12541                                 "0293 PM resume failed to start worker "
12542                                 "thread: error=x%x.\n", error);
12543                 return error;
12544         }
12545
12546         /* Configure and enable interrupt */
12547         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12548         if (intr_mode == LPFC_INTR_ERROR) {
12549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12550                                 "0294 PM resume Failed to enable interrupt\n");
12551                 return -EIO;
12552         } else
12553                 phba->intr_mode = intr_mode;
12554
12555         /* Restart HBA and bring it online */
12556         lpfc_sli_brdrestart(phba);
12557         lpfc_online(phba);
12558
12559         /* Log the current active interrupt mode */
12560         lpfc_log_intr_mode(phba, phba->intr_mode);
12561
12562         return 0;
12563 }
12564
12565 /**
12566  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12567  * @phba: pointer to lpfc hba data structure.
12568  *
12569  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12570  * aborts all the outstanding SCSI I/Os to the pci device.
12571  **/
12572 static void
12573 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12574 {
12575         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12576                         "2828 PCI channel I/O abort preparing for recovery\n");
12577         /*
12578          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12579          * and let the SCSI mid-layer to retry them to recover.
12580          */
12581         lpfc_sli_abort_fcp_rings(phba);
12582 }
12583
12584 /**
12585  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12586  * @phba: pointer to lpfc hba data structure.
12587  *
12588  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12589  * disables the device interrupt and pci device, and aborts the internal FCP
12590  * pending I/Os.
12591  **/
12592 static void
12593 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12594 {
12595         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12596                         "2826 PCI channel disable preparing for reset\n");
12597
12598         /* Block any management I/Os to the device */
12599         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12600
12601         /* Block all SCSI devices' I/Os on the host */
12602         lpfc_scsi_dev_block(phba);
12603
12604         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12605         lpfc_sli_flush_fcp_rings(phba);
12606
12607         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12608         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12609                 lpfc_sli_flush_nvme_rings(phba);
12610
12611         /* stop all timers */
12612         lpfc_stop_hba_timers(phba);
12613
12614         /* Disable interrupt and pci device */
12615         lpfc_sli4_disable_intr(phba);
12616         lpfc_sli4_queue_destroy(phba);
12617         pci_disable_device(phba->pcidev);
12618 }
12619
12620 /**
12621  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12622  * @phba: pointer to lpfc hba data structure.
12623  *
12624  * This routine is called to prepare the SLI4 device for PCI slot permanently
12625  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12626  * pending I/Os.
12627  **/
12628 static void
12629 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12630 {
12631         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12632                         "2827 PCI channel permanent disable for failure\n");
12633
12634         /* Block all SCSI devices' I/Os on the host */
12635         lpfc_scsi_dev_block(phba);
12636
12637         /* stop all timers */
12638         lpfc_stop_hba_timers(phba);
12639
12640         /* Clean up all driver's outstanding SCSI I/Os */
12641         lpfc_sli_flush_fcp_rings(phba);
12642
12643         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12644         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12645                 lpfc_sli_flush_nvme_rings(phba);
12646 }
12647
12648 /**
12649  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12650  * @pdev: pointer to PCI device.
12651  * @state: the current PCI connection state.
12652  *
12653  * This routine is called from the PCI subsystem for error handling to device
12654  * with SLI-4 interface spec. This function is called by the PCI subsystem
12655  * after a PCI bus error affecting this device has been detected. When this
12656  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12657  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12658  * for the PCI subsystem to perform proper recovery as desired.
12659  *
12660  * Return codes
12661  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12662  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12663  **/
12664 static pci_ers_result_t
12665 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12666 {
12667         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12668         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12669
12670         switch (state) {
12671         case pci_channel_io_normal:
12672                 /* Non-fatal error, prepare for recovery */
12673                 lpfc_sli4_prep_dev_for_recover(phba);
12674                 return PCI_ERS_RESULT_CAN_RECOVER;
12675         case pci_channel_io_frozen:
12676                 /* Fatal error, prepare for slot reset */
12677                 lpfc_sli4_prep_dev_for_reset(phba);
12678                 return PCI_ERS_RESULT_NEED_RESET;
12679         case pci_channel_io_perm_failure:
12680                 /* Permanent failure, prepare for device down */
12681                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12682                 return PCI_ERS_RESULT_DISCONNECT;
12683         default:
12684                 /* Unknown state, prepare and request slot reset */
12685                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12686                                 "2825 Unknown PCI error state: x%x\n", state);
12687                 lpfc_sli4_prep_dev_for_reset(phba);
12688                 return PCI_ERS_RESULT_NEED_RESET;
12689         }
12690 }
12691
12692 /**
12693  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12694  * @pdev: pointer to PCI device.
12695  *
12696  * This routine is called from the PCI subsystem for error handling to device
12697  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12698  * restart the PCI card from scratch, as if from a cold-boot. During the
12699  * PCI subsystem error recovery, after the driver returns
12700  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12701  * recovery and then call this routine before calling the .resume method to
12702  * recover the device. This function will initialize the HBA device, enable
12703  * the interrupt, but it will just put the HBA to offline state without
12704  * passing any I/O traffic.
12705  *
12706  * Return codes
12707  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12708  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12709  */
12710 static pci_ers_result_t
12711 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12712 {
12713         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12714         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12715         struct lpfc_sli *psli = &phba->sli;
12716         uint32_t intr_mode;
12717
12718         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12719         if (pci_enable_device_mem(pdev)) {
12720                 printk(KERN_ERR "lpfc: Cannot re-enable "
12721                         "PCI device after reset.\n");
12722                 return PCI_ERS_RESULT_DISCONNECT;
12723         }
12724
12725         pci_restore_state(pdev);
12726
12727         /*
12728          * As the new kernel behavior of pci_restore_state() API call clears
12729          * device saved_state flag, need to save the restored state again.
12730          */
12731         pci_save_state(pdev);
12732
12733         if (pdev->is_busmaster)
12734                 pci_set_master(pdev);
12735
12736         spin_lock_irq(&phba->hbalock);
12737         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12738         spin_unlock_irq(&phba->hbalock);
12739
12740         /* Configure and enable interrupt */
12741         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12742         if (intr_mode == LPFC_INTR_ERROR) {
12743                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12744                                 "2824 Cannot re-enable interrupt after "
12745                                 "slot reset.\n");
12746                 return PCI_ERS_RESULT_DISCONNECT;
12747         } else
12748                 phba->intr_mode = intr_mode;
12749
12750         /* Log the current active interrupt mode */
12751         lpfc_log_intr_mode(phba, phba->intr_mode);
12752
12753         return PCI_ERS_RESULT_RECOVERED;
12754 }
12755
12756 /**
12757  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12758  * @pdev: pointer to PCI device
12759  *
12760  * This routine is called from the PCI subsystem for error handling to device
12761  * with SLI-4 interface spec. It is called when kernel error recovery tells
12762  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12763  * error recovery. After this call, traffic can start to flow from this device
12764  * again.
12765  **/
12766 static void
12767 lpfc_io_resume_s4(struct pci_dev *pdev)
12768 {
12769         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12770         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12771
12772         /*
12773          * In case of slot reset, as function reset is performed through
12774          * mailbox command which needs DMA to be enabled, this operation
12775          * has to be moved to the io resume phase. Taking device offline
12776          * will perform the necessary cleanup.
12777          */
12778         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12779                 /* Perform device reset */
12780                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12781                 lpfc_offline(phba);
12782                 lpfc_sli_brdrestart(phba);
12783                 /* Bring the device back online */
12784                 lpfc_online(phba);
12785         }
12786 }
12787
12788 /**
12789  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12790  * @pdev: pointer to PCI device
12791  * @pid: pointer to PCI device identifier
12792  *
12793  * This routine is to be registered to the kernel's PCI subsystem. When an
12794  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12795  * at PCI device-specific information of the device and driver to see if the
12796  * driver state that it can support this kind of device. If the match is
12797  * successful, the driver core invokes this routine. This routine dispatches
12798  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12799  * do all the initialization that it needs to do to handle the HBA device
12800  * properly.
12801  *
12802  * Return code
12803  *      0 - driver can claim the device
12804  *      negative value - driver can not claim the device
12805  **/
12806 static int
12807 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12808 {
12809         int rc;
12810         struct lpfc_sli_intf intf;
12811
12812         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12813                 return -ENODEV;
12814
12815         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12816             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12817                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12818         else
12819                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12820
12821         return rc;
12822 }
12823
12824 /**
12825  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12826  * @pdev: pointer to PCI device
12827  *
12828  * This routine is to be registered to the kernel's PCI subsystem. When an
12829  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12830  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12831  * remove routine, which will perform all the necessary cleanup for the
12832  * device to be removed from the PCI subsystem properly.
12833  **/
12834 static void
12835 lpfc_pci_remove_one(struct pci_dev *pdev)
12836 {
12837         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12838         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12839
12840         switch (phba->pci_dev_grp) {
12841         case LPFC_PCI_DEV_LP:
12842                 lpfc_pci_remove_one_s3(pdev);
12843                 break;
12844         case LPFC_PCI_DEV_OC:
12845                 lpfc_pci_remove_one_s4(pdev);
12846                 break;
12847         default:
12848                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12849                                 "1424 Invalid PCI device group: 0x%x\n",
12850                                 phba->pci_dev_grp);
12851                 break;
12852         }
12853         return;
12854 }
12855
12856 /**
12857  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12858  * @pdev: pointer to PCI device
12859  * @msg: power management message
12860  *
12861  * This routine is to be registered to the kernel's PCI subsystem to support
12862  * system Power Management (PM). When PM invokes this method, it dispatches
12863  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12864  * suspend the device.
12865  *
12866  * Return code
12867  *      0 - driver suspended the device
12868  *      Error otherwise
12869  **/
12870 static int
12871 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12872 {
12873         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12874         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12875         int rc = -ENODEV;
12876
12877         switch (phba->pci_dev_grp) {
12878         case LPFC_PCI_DEV_LP:
12879                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12880                 break;
12881         case LPFC_PCI_DEV_OC:
12882                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12883                 break;
12884         default:
12885                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12886                                 "1425 Invalid PCI device group: 0x%x\n",
12887                                 phba->pci_dev_grp);
12888                 break;
12889         }
12890         return rc;
12891 }
12892
12893 /**
12894  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12895  * @pdev: pointer to PCI device
12896  *
12897  * This routine is to be registered to the kernel's PCI subsystem to support
12898  * system Power Management (PM). When PM invokes this method, it dispatches
12899  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12900  * resume the device.
12901  *
12902  * Return code
12903  *      0 - driver suspended the device
12904  *      Error otherwise
12905  **/
12906 static int
12907 lpfc_pci_resume_one(struct pci_dev *pdev)
12908 {
12909         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12910         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12911         int rc = -ENODEV;
12912
12913         switch (phba->pci_dev_grp) {
12914         case LPFC_PCI_DEV_LP:
12915                 rc = lpfc_pci_resume_one_s3(pdev);
12916                 break;
12917         case LPFC_PCI_DEV_OC:
12918                 rc = lpfc_pci_resume_one_s4(pdev);
12919                 break;
12920         default:
12921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12922                                 "1426 Invalid PCI device group: 0x%x\n",
12923                                 phba->pci_dev_grp);
12924                 break;
12925         }
12926         return rc;
12927 }
12928
12929 /**
12930  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12931  * @pdev: pointer to PCI device.
12932  * @state: the current PCI connection state.
12933  *
12934  * This routine is registered to the PCI subsystem for error handling. This
12935  * function is called by the PCI subsystem after a PCI bus error affecting
12936  * this device has been detected. When this routine is invoked, it dispatches
12937  * the action to the proper SLI-3 or SLI-4 device error detected handling
12938  * routine, which will perform the proper error detected operation.
12939  *
12940  * Return codes
12941  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12942  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12943  **/
12944 static pci_ers_result_t
12945 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12946 {
12947         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12948         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12949         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12950
12951         switch (phba->pci_dev_grp) {
12952         case LPFC_PCI_DEV_LP:
12953                 rc = lpfc_io_error_detected_s3(pdev, state);
12954                 break;
12955         case LPFC_PCI_DEV_OC:
12956                 rc = lpfc_io_error_detected_s4(pdev, state);
12957                 break;
12958         default:
12959                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12960                                 "1427 Invalid PCI device group: 0x%x\n",
12961                                 phba->pci_dev_grp);
12962                 break;
12963         }
12964         return rc;
12965 }
12966
12967 /**
12968  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12969  * @pdev: pointer to PCI device.
12970  *
12971  * This routine is registered to the PCI subsystem for error handling. This
12972  * function is called after PCI bus has been reset to restart the PCI card
12973  * from scratch, as if from a cold-boot. When this routine is invoked, it
12974  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12975  * routine, which will perform the proper device reset.
12976  *
12977  * Return codes
12978  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12979  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12980  **/
12981 static pci_ers_result_t
12982 lpfc_io_slot_reset(struct pci_dev *pdev)
12983 {
12984         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12985         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12986         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12987
12988         switch (phba->pci_dev_grp) {
12989         case LPFC_PCI_DEV_LP:
12990                 rc = lpfc_io_slot_reset_s3(pdev);
12991                 break;
12992         case LPFC_PCI_DEV_OC:
12993                 rc = lpfc_io_slot_reset_s4(pdev);
12994                 break;
12995         default:
12996                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12997                                 "1428 Invalid PCI device group: 0x%x\n",
12998                                 phba->pci_dev_grp);
12999                 break;
13000         }
13001         return rc;
13002 }
13003
13004 /**
13005  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13006  * @pdev: pointer to PCI device
13007  *
13008  * This routine is registered to the PCI subsystem for error handling. It
13009  * is called when kernel error recovery tells the lpfc driver that it is
13010  * OK to resume normal PCI operation after PCI bus error recovery. When
13011  * this routine is invoked, it dispatches the action to the proper SLI-3
13012  * or SLI-4 device io_resume routine, which will resume the device operation.
13013  **/
13014 static void
13015 lpfc_io_resume(struct pci_dev *pdev)
13016 {
13017         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13018         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13019
13020         switch (phba->pci_dev_grp) {
13021         case LPFC_PCI_DEV_LP:
13022                 lpfc_io_resume_s3(pdev);
13023                 break;
13024         case LPFC_PCI_DEV_OC:
13025                 lpfc_io_resume_s4(pdev);
13026                 break;
13027         default:
13028                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13029                                 "1429 Invalid PCI device group: 0x%x\n",
13030                                 phba->pci_dev_grp);
13031                 break;
13032         }
13033         return;
13034 }
13035
13036 /**
13037  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13038  * @phba: pointer to lpfc hba data structure.
13039  *
13040  * This routine checks to see if OAS is supported for this adapter. If
13041  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13042  * the enable oas flag is cleared and the pool created for OAS device data
13043  * is destroyed.
13044  *
13045  **/
13046 void
13047 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13048 {
13049
13050         if (!phba->cfg_EnableXLane)
13051                 return;
13052
13053         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13054                 phba->cfg_fof = 1;
13055         } else {
13056                 phba->cfg_fof = 0;
13057                 if (phba->device_data_mem_pool)
13058                         mempool_destroy(phba->device_data_mem_pool);
13059                 phba->device_data_mem_pool = NULL;
13060         }
13061
13062         return;
13063 }
13064
13065 /**
13066  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13067  * @phba: pointer to lpfc hba data structure.
13068  *
13069  * This routine checks to see if RAS is supported by the adapter. Check the
13070  * function through which RAS support enablement is to be done.
13071  **/
13072 void
13073 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13074 {
13075         switch (phba->pcidev->device) {
13076         case PCI_DEVICE_ID_LANCER_G6_FC:
13077         case PCI_DEVICE_ID_LANCER_G7_FC:
13078                 phba->ras_fwlog.ras_hwsupport = true;
13079                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13080                     phba->cfg_ras_fwlog_buffsize)
13081                         phba->ras_fwlog.ras_enabled = true;
13082                 else
13083                         phba->ras_fwlog.ras_enabled = false;
13084                 break;
13085         default:
13086                 phba->ras_fwlog.ras_hwsupport = false;
13087         }
13088 }
13089
13090
13091 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13092
13093 static const struct pci_error_handlers lpfc_err_handler = {
13094         .error_detected = lpfc_io_error_detected,
13095         .slot_reset = lpfc_io_slot_reset,
13096         .resume = lpfc_io_resume,
13097 };
13098
13099 static struct pci_driver lpfc_driver = {
13100         .name           = LPFC_DRIVER_NAME,
13101         .id_table       = lpfc_id_table,
13102         .probe          = lpfc_pci_probe_one,
13103         .remove         = lpfc_pci_remove_one,
13104         .shutdown       = lpfc_pci_remove_one,
13105         .suspend        = lpfc_pci_suspend_one,
13106         .resume         = lpfc_pci_resume_one,
13107         .err_handler    = &lpfc_err_handler,
13108 };
13109
13110 static const struct file_operations lpfc_mgmt_fop = {
13111         .owner = THIS_MODULE,
13112 };
13113
13114 static struct miscdevice lpfc_mgmt_dev = {
13115         .minor = MISC_DYNAMIC_MINOR,
13116         .name = "lpfcmgmt",
13117         .fops = &lpfc_mgmt_fop,
13118 };
13119
13120 /**
13121  * lpfc_init - lpfc module initialization routine
13122  *
13123  * This routine is to be invoked when the lpfc module is loaded into the
13124  * kernel. The special kernel macro module_init() is used to indicate the
13125  * role of this routine to the kernel as lpfc module entry point.
13126  *
13127  * Return codes
13128  *   0 - successful
13129  *   -ENOMEM - FC attach transport failed
13130  *   all others - failed
13131  */
13132 static int __init
13133 lpfc_init(void)
13134 {
13135         int error = 0;
13136
13137         printk(LPFC_MODULE_DESC "\n");
13138         printk(LPFC_COPYRIGHT "\n");
13139
13140         error = misc_register(&lpfc_mgmt_dev);
13141         if (error)
13142                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13143                         "misc_register returned with status %d", error);
13144
13145         lpfc_transport_functions.vport_create = lpfc_vport_create;
13146         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13147         lpfc_transport_template =
13148                                 fc_attach_transport(&lpfc_transport_functions);
13149         if (lpfc_transport_template == NULL)
13150                 return -ENOMEM;
13151         lpfc_vport_transport_template =
13152                 fc_attach_transport(&lpfc_vport_transport_functions);
13153         if (lpfc_vport_transport_template == NULL) {
13154                 fc_release_transport(lpfc_transport_template);
13155                 return -ENOMEM;
13156         }
13157         lpfc_nvme_cmd_template();
13158         lpfc_nvmet_cmd_template();
13159
13160         /* Initialize in case vector mapping is needed */
13161         lpfc_present_cpu = num_present_cpus();
13162
13163         error = pci_register_driver(&lpfc_driver);
13164         if (error) {
13165                 fc_release_transport(lpfc_transport_template);
13166                 fc_release_transport(lpfc_vport_transport_template);
13167         }
13168
13169         return error;
13170 }
13171
13172 /**
13173  * lpfc_exit - lpfc module removal routine
13174  *
13175  * This routine is invoked when the lpfc module is removed from the kernel.
13176  * The special kernel macro module_exit() is used to indicate the role of
13177  * this routine to the kernel as lpfc module exit point.
13178  */
13179 static void __exit
13180 lpfc_exit(void)
13181 {
13182         misc_deregister(&lpfc_mgmt_dev);
13183         pci_unregister_driver(&lpfc_driver);
13184         fc_release_transport(lpfc_transport_template);
13185         fc_release_transport(lpfc_vport_transport_template);
13186         if (_dump_buf_data) {
13187                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
13188                                 "_dump_buf_data at 0x%p\n",
13189                                 (1L << _dump_buf_data_order), _dump_buf_data);
13190                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
13191         }
13192
13193         if (_dump_buf_dif) {
13194                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
13195                                 "_dump_buf_dif at 0x%p\n",
13196                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
13197                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
13198         }
13199         idr_destroy(&lpfc_hba_index);
13200 }
13201
13202 module_init(lpfc_init);
13203 module_exit(lpfc_exit);
13204 MODULE_LICENSE("GPL");
13205 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13206 MODULE_AUTHOR("Broadcom");
13207 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);