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) 2004-2015 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 static int
 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb))) {
 703                 /* Reset link speed to auto */
 704                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 705                         "1302 Invalid speed for this board:%d "
 706                         "Reset link speed to auto.\n",
 707                         phba->cfg_link_speed);
 708                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 709         }
 710         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 712         if (phba->sli_rev < LPFC_SLI_REV4)
 713                 lpfc_set_loopback_flag(phba);
 714         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 715         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 717                         "0498 Adapter failed to init, mbxCmd x%x "
 718                         "INIT_LINK, mbxStatus x%x\n",
 719                         mb->mbxCommand, mb->mbxStatus);
 720                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 721                         /* Clear all interrupt enable conditions */
 722                         writel(0, phba->HCregaddr);
 723                         readl(phba->HCregaddr); /* flush */
 724                         /* Clear all pending interrupts */
 725                         writel(0xffffffff, phba->HAregaddr);
 726                         readl(phba->HAregaddr); /* flush */
 727                 }
 728                 phba->link_state = LPFC_HBA_ERROR;
 729                 if (rc != MBX_BUSY || flag == MBX_POLL)
 730                         mempool_free(pmb, phba->mbox_mem_pool);
 731                 return -EIO;
 732         }
 733         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 734         if (flag == MBX_POLL)
 735                 mempool_free(pmb, phba->mbox_mem_pool);
 736
 737         return 0;
 738 }
 739
 740 /**
 741  * lpfc_hba_down_link - this routine downs the FC link
 742  * @phba: pointer to lpfc hba data structure.
 743  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 744  *
 745  * This routine will issue the DOWN_LINK mailbox command call.
 746  * It is available to other drivers through the lpfc_hba data
 747  * structure for use to stop the link.
 748  *
 749  * Return code
 750  *              0 - success
 751  *              Any other value - error
 752  **/
 753 static int
 754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 755 {
 756         LPFC_MBOXQ_t *pmb;
 757         int rc;
 758
 759         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 760         if (!pmb) {
 761                 phba->link_state = LPFC_HBA_ERROR;
 762                 return -ENOMEM;
 763         }
 764
 765         lpfc_printf_log(phba,
 766                 KERN_ERR, LOG_INIT,
 767                 "0491 Adapter Link is disabled.\n");
 768         lpfc_down_link(phba, pmb);
 769         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 770         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 771         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 772                 lpfc_printf_log(phba,
 773                 KERN_ERR, LOG_INIT,
 774                 "2522 Adapter failed to issue DOWN_LINK"
 775                 " mbox command rc 0x%x\n", rc);
 776
 777                 mempool_free(pmb, phba->mbox_mem_pool);
 778                 return -EIO;
 779         }
 780         if (flag == MBX_POLL)
 781                 mempool_free(pmb, phba->mbox_mem_pool);
 782
 783         return 0;
 784 }
 785
 786 /**
 787  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 788  * @phba: pointer to lpfc HBA data structure.
 789  *
 790  * This routine will do LPFC uninitialization before the HBA is reset when
 791  * bringing down the SLI Layer.
 792  *
 793  * Return codes
 794  *   0 - success.
 795  *   Any other value - error.
 796  **/
 797 int
 798 lpfc_hba_down_prep(struct lpfc_hba *phba)
 799 {
 800         struct lpfc_vport **vports;
 801         int i;
 802
 803         if (phba->sli_rev <= LPFC_SLI_REV3) {
 804                 /* Disable interrupts */
 805                 writel(0, phba->HCregaddr);
 806                 readl(phba->HCregaddr); /* flush */
 807         }
 808
 809         if (phba->pport->load_flag & FC_UNLOADING)
 810                 lpfc_cleanup_discovery_resources(phba->pport);
 811         else {
 812                 vports = lpfc_create_vport_work_array(phba);
 813                 if (vports != NULL)
 814                         for (i = 0; i <= phba->max_vports &&
 815                                 vports[i] != NULL; i++)
 816                                 lpfc_cleanup_discovery_resources(vports[i]);
 817                 lpfc_destroy_vport_work_array(phba, vports);
 818         }
 819         return 0;
 820 }
 821
 822 /**
 823  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 824  * rspiocb which got deferred
 825  *
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will cleanup completed slow path events after HBA is reset
 829  * when bringing down the SLI Layer.
 830  *
 831  *
 832  * Return codes
 833  *   void.
 834  **/
 835 static void
 836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_iocbq *rspiocbq;
 839         struct hbq_dmabuf *dmabuf;
 840         struct lpfc_cq_event *cq_event;
 841
 842         spin_lock_irq(&phba->hbalock);
 843         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 844         spin_unlock_irq(&phba->hbalock);
 845
 846         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 847                 /* Get the response iocb from the head of work queue */
 848                 spin_lock_irq(&phba->hbalock);
 849                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 850                                  cq_event, struct lpfc_cq_event, list);
 851                 spin_unlock_irq(&phba->hbalock);
 852
 853                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 854                 case CQE_CODE_COMPL_WQE:
 855                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 856                                                  cq_event);
 857                         lpfc_sli_release_iocbq(phba, rspiocbq);
 858                         break;
 859                 case CQE_CODE_RECEIVE:
 860                 case CQE_CODE_RECEIVE_V1:
 861                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 862                                               cq_event);
 863                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 864                 }
 865         }
 866 }
 867
 868 /**
 869  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 870  * @phba: pointer to lpfc HBA data structure.
 871  *
 872  * This routine will cleanup posted ELS buffers after the HBA is reset
 873  * when bringing down the SLI Layer.
 874  *
 875  *
 876  * Return codes
 877  *   void.
 878  **/
 879 static void
 880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 881 {
 882         struct lpfc_sli *psli = &phba->sli;
 883         struct lpfc_sli_ring *pring;
 884         struct lpfc_dmabuf *mp, *next_mp;
 885         LIST_HEAD(buflist);
 886         int count;
 887
 888         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 889                 lpfc_sli_hbqbuf_free_all(phba);
 890         else {
 891                 /* Cleanup preposted buffers on the ELS ring */
 892                 pring = &psli->ring[LPFC_ELS_RING];
 893                 spin_lock_irq(&phba->hbalock);
 894                 list_splice_init(&pring->postbufq, &buflist);
 895                 spin_unlock_irq(&phba->hbalock);
 896
 897                 count = 0;
 898                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 899                         list_del(&mp->list);
 900                         count++;
 901                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 902                         kfree(mp);
 903                 }
 904
 905                 spin_lock_irq(&phba->hbalock);
 906                 pring->postbufq_cnt -= count;
 907                 spin_unlock_irq(&phba->hbalock);
 908         }
 909 }
 910
 911 /**
 912  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 913  * @phba: pointer to lpfc HBA data structure.
 914  *
 915  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 916  * down the SLI Layer.
 917  *
 918  * Return codes
 919  *   void
 920  **/
 921 static void
 922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 923 {
 924         struct lpfc_sli *psli = &phba->sli;
 925         struct lpfc_sli_ring *pring;
 926         LIST_HEAD(completions);
 927         int i;
 928
 929         for (i = 0; i < psli->num_rings; i++) {
 930                 pring = &psli->ring[i];
 931                 if (phba->sli_rev >= LPFC_SLI_REV4)
 932                         spin_lock_irq(&pring->ring_lock);
 933                 else
 934                         spin_lock_irq(&phba->hbalock);
 935                 /* At this point in time the HBA is either reset or DOA. Either
 936                  * way, nothing should be on txcmplq as it will NEVER complete.
 937                  */
 938                 list_splice_init(&pring->txcmplq, &completions);
 939                 pring->txcmplq_cnt = 0;
 940
 941                 if (phba->sli_rev >= LPFC_SLI_REV4)
 942                         spin_unlock_irq(&pring->ring_lock);
 943                 else
 944                         spin_unlock_irq(&phba->hbalock);
 945
 946                 /* Cancel all the IOCBs from the completions list */
 947                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 948                                       IOERR_SLI_ABORTED);
 949                 lpfc_sli_abort_iocb_ring(phba, pring);
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 955         int i;
 956  * @phba: pointer to lpfc HBA data structure.
 957  *
 958  * This routine will do uninitialization after the HBA is reset when bring
 959  * down the SLI Layer.
 960  *
 961  * Return codes
 962  *   0 - success.
 963  *   Any other value - error.
 964  **/
 965 static int
 966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 967 {
 968         lpfc_hba_free_post_buf(phba);
 969         lpfc_hba_clean_txcmplq(phba);
 970         return 0;
 971 }
 972
 973 /**
 974  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 975  * @phba: pointer to lpfc HBA data structure.
 976  *
 977  * This routine will do uninitialization after the HBA is reset when bring
 978  * down the SLI Layer.
 979  *
 980  * Return codes
 981  *   0 - success.
 982  *   Any other value - error.
 983  **/
 984 static int
 985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 986 {
 987         struct lpfc_scsi_buf *psb, *psb_next;
 988         LIST_HEAD(aborts);
 989         unsigned long iflag = 0;
 990         struct lpfc_sglq *sglq_entry = NULL;
 991         struct lpfc_sli *psli = &phba->sli;
 992         struct lpfc_sli_ring *pring;
 993
 994         lpfc_hba_free_post_buf(phba);
 995         lpfc_hba_clean_txcmplq(phba);
 996         pring = &psli->ring[LPFC_ELS_RING];
 997
 998         /* At this point in time the HBA is either reset or DOA. Either
 999          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000          * on the lpfc_sgl_list so that it can either be freed if the
1001          * driver is unloading or reposted if the driver is restarting
1002          * the port.
1003          */
1004         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1005                                         /* scsl_buf_list */
1006         /* abts_sgl_list_lock required because worker thread uses this
1007          * list.
1008          */
1009         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010         list_for_each_entry(sglq_entry,
1011                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012                 sglq_entry->state = SGL_FREED;
1013
1014         spin_lock(&pring->ring_lock);
1015         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016                         &phba->sli4_hba.lpfc_sgl_list);
1017         spin_unlock(&pring->ring_lock);
1018         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019         /* abts_scsi_buf_list_lock required because worker thread uses this
1020          * list.
1021          */
1022         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1024                         &aborts);
1025         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026         spin_unlock_irq(&phba->hbalock);
1027
1028         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1029                 psb->pCmd = NULL;
1030                 psb->status = IOSTAT_SUCCESS;
1031         }
1032         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1035
1036         lpfc_sli4_free_sp_events(phba);
1037         return 0;
1038 }
1039
1040 /**
1041  * lpfc_hba_down_post - Wrapper func for hba down post routine
1042  * @phba: pointer to lpfc HBA data structure.
1043  *
1044  * This routine wraps the actual SLI3 or SLI4 routine for performing
1045  * uninitialization after the HBA is reset when bring down the SLI Layer.
1046  *
1047  * Return codes
1048  *   0 - success.
1049  *   Any other value - error.
1050  **/
1051 int
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1053 {
1054         return (*phba->lpfc_hba_down_post)(phba);
1055 }
1056
1057 /**
1058  * lpfc_hb_timeout - The HBA-timer timeout handler
1059  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1060  *
1061  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063  * work-port-events bitmap and the worker thread is notified. This timeout
1064  * event will be used by the worker thread to invoke the actual timeout
1065  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066  * be performed in the timeout handler and the HBA timeout event bit shall
1067  * be cleared by the worker thread after it has taken the event bitmap out.
1068  **/
1069 static void
1070 lpfc_hb_timeout(unsigned long ptr)
1071 {
1072         struct lpfc_hba *phba;
1073         uint32_t tmo_posted;
1074         unsigned long iflag;
1075
1076         phba = (struct lpfc_hba *)ptr;
1077
1078         /* Check for heart beat timeout conditions */
1079         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1081         if (!tmo_posted)
1082                 phba->pport->work_port_events |= WORKER_HB_TMO;
1083         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1084
1085         /* Tell the worker thread there is work to do */
1086         if (!tmo_posted)
1087                 lpfc_worker_wake_up(phba);
1088         return;
1089 }
1090
1091 /**
1092  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1094  *
1095  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097  * work-port-events bitmap and the worker thread is notified. This timeout
1098  * event will be used by the worker thread to invoke the actual timeout
1099  * handler routine, lpfc_rrq_handler. Any periodical operations will
1100  * be performed in the timeout handler and the RRQ timeout event bit shall
1101  * be cleared by the worker thread after it has taken the event bitmap out.
1102  **/
1103 static void
1104 lpfc_rrq_timeout(unsigned long ptr)
1105 {
1106         struct lpfc_hba *phba;
1107         unsigned long iflag;
1108
1109         phba = (struct lpfc_hba *)ptr;
1110         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111         if (!(phba->pport->load_flag & FC_UNLOADING))
1112                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1113         else
1114                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1116
1117         if (!(phba->pport->load_flag & FC_UNLOADING))
1118                 lpfc_worker_wake_up(phba);
1119 }
1120
1121 /**
1122  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123  * @phba: pointer to lpfc hba data structure.
1124  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1125  *
1126  * This is the callback function to the lpfc heart-beat mailbox command.
1127  * If configured, the lpfc driver issues the heart-beat mailbox command to
1128  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131  * heart-beat outstanding state. Once the mailbox command comes back and
1132  * no error conditions detected, the heart-beat mailbox command timer is
1133  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134  * state is cleared for the next heart-beat. If the timer expired with the
1135  * heart-beat outstanding state set, the driver will put the HBA offline.
1136  **/
1137 static void
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1139 {
1140         unsigned long drvr_flag;
1141
1142         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143         phba->hb_outstanding = 0;
1144         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1145
1146         /* Check and reset heart-beat timer is necessary */
1147         mempool_free(pmboxq, phba->mbox_mem_pool);
1148         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149                 !(phba->link_state == LPFC_HBA_ERROR) &&
1150                 !(phba->pport->load_flag & FC_UNLOADING))
1151                 mod_timer(&phba->hb_tmofunc,
1152                           jiffies +
1153                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159  * @phba: pointer to lpfc hba data structure.
1160  *
1161  * This is the actual HBA-timer timeout handler to be invoked by the worker
1162  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163  * handler performs any periodic operations needed for the device. If such
1164  * periodic event has already been attended to either in the interrupt handler
1165  * or by processing slow-ring or fast-ring events within the HBA-timer
1166  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168  * is configured and there is no heart-beat mailbox command outstanding, a
1169  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1171  * to offline.
1172  **/
1173 void
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1175 {
1176         struct lpfc_vport **vports;
1177         LPFC_MBOXQ_t *pmboxq;
1178         struct lpfc_dmabuf *buf_ptr;
1179         int retval, i;
1180         struct lpfc_sli *psli = &phba->sli;
1181         LIST_HEAD(completions);
1182
1183         vports = lpfc_create_vport_work_array(phba);
1184         if (vports != NULL)
1185                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186                         lpfc_rcv_seq_check_edtov(vports[i]);
1187         lpfc_destroy_vport_work_array(phba, vports);
1188
1189         if ((phba->link_state == LPFC_HBA_ERROR) ||
1190                 (phba->pport->load_flag & FC_UNLOADING) ||
1191                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1192                 return;
1193
1194         spin_lock_irq(&phba->pport->work_port_lock);
1195
1196         if (time_after(phba->last_completion_time +
1197                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1198                         jiffies)) {
1199                 spin_unlock_irq(&phba->pport->work_port_lock);
1200                 if (!phba->hb_outstanding)
1201                         mod_timer(&phba->hb_tmofunc,
1202                                 jiffies +
1203                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1204                 else
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1208                 return;
1209         }
1210         spin_unlock_irq(&phba->pport->work_port_lock);
1211
1212         if (phba->elsbuf_cnt &&
1213                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214                 spin_lock_irq(&phba->hbalock);
1215                 list_splice_init(&phba->elsbuf, &completions);
1216                 phba->elsbuf_cnt = 0;
1217                 phba->elsbuf_prev_cnt = 0;
1218                 spin_unlock_irq(&phba->hbalock);
1219
1220                 while (!list_empty(&completions)) {
1221                         list_remove_head(&completions, buf_ptr,
1222                                 struct lpfc_dmabuf, list);
1223                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1224                         kfree(buf_ptr);
1225                 }
1226         }
1227         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1228
1229         /* If there is no heart beat outstanding, issue a heartbeat command */
1230         if (phba->cfg_enable_hba_heartbeat) {
1231                 if (!phba->hb_outstanding) {
1232                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233                                 (list_empty(&psli->mboxq))) {
1234                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1235                                                         GFP_KERNEL);
1236                                 if (!pmboxq) {
1237                                         mod_timer(&phba->hb_tmofunc,
1238                                                  jiffies +
1239                                                  msecs_to_jiffies(1000 *
1240                                                  LPFC_HB_MBOX_INTERVAL));
1241                                         return;
1242                                 }
1243
1244                                 lpfc_heart_beat(phba, pmboxq);
1245                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246                                 pmboxq->vport = phba->pport;
1247                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1248                                                 MBX_NOWAIT);
1249
1250                                 if (retval != MBX_BUSY &&
1251                                         retval != MBX_SUCCESS) {
1252                                         mempool_free(pmboxq,
1253                                                         phba->mbox_mem_pool);
1254                                         mod_timer(&phba->hb_tmofunc,
1255                                                 jiffies +
1256                                                 msecs_to_jiffies(1000 *
1257                                                 LPFC_HB_MBOX_INTERVAL));
1258                                         return;
1259                                 }
1260                                 phba->skipped_hb = 0;
1261                                 phba->hb_outstanding = 1;
1262                         } else if (time_before_eq(phba->last_completion_time,
1263                                         phba->skipped_hb)) {
1264                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265                                         "2857 Last completion time not "
1266                                         " updated in %d ms\n",
1267                                         jiffies_to_msecs(jiffies
1268                                                  - phba->last_completion_time));
1269                         } else
1270                                 phba->skipped_hb = jiffies;
1271
1272                         mod_timer(&phba->hb_tmofunc,
1273                                  jiffies +
1274                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1275                         return;
1276                 } else {
1277                         /*
1278                         * If heart beat timeout called with hb_outstanding set
1279                         * we need to give the hb mailbox cmd a chance to
1280                         * complete or TMO.
1281                         */
1282                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283                                         "0459 Adapter heartbeat still out"
1284                                         "standing:last compl time was %d ms.\n",
1285                                         jiffies_to_msecs(jiffies
1286                                                  - phba->last_completion_time));
1287                         mod_timer(&phba->hb_tmofunc,
1288                                 jiffies +
1289                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1290                 }
1291         }
1292 }
1293
1294 /**
1295  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * This routine is called to bring the HBA offline when HBA hardware error
1299  * other than Port Error 6 has been detected.
1300  **/
1301 static void
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1303 {
1304         struct lpfc_sli   *psli = &phba->sli;
1305
1306         spin_lock_irq(&phba->hbalock);
1307         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308         spin_unlock_irq(&phba->hbalock);
1309         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1310
1311         lpfc_offline(phba);
1312         lpfc_reset_barrier(phba);
1313         spin_lock_irq(&phba->hbalock);
1314         lpfc_sli_brdreset(phba);
1315         spin_unlock_irq(&phba->hbalock);
1316         lpfc_hba_down_post(phba);
1317         lpfc_sli_brdready(phba, HS_MBRDY);
1318         lpfc_unblock_mgmt_io(phba);
1319         phba->link_state = LPFC_HBA_ERROR;
1320         return;
1321 }
1322
1323 /**
1324  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325  * @phba: pointer to lpfc hba data structure.
1326  *
1327  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328  * other than Port Error 6 has been detected.
1329  **/
1330 void
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1332 {
1333         spin_lock_irq(&phba->hbalock);
1334         phba->link_state = LPFC_HBA_ERROR;
1335         spin_unlock_irq(&phba->hbalock);
1336
1337         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1338         lpfc_offline(phba);
1339         lpfc_hba_down_post(phba);
1340         lpfc_unblock_mgmt_io(phba);
1341 }
1342
1343 /**
1344  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345  * @phba: pointer to lpfc hba data structure.
1346  *
1347  * This routine is invoked to handle the deferred HBA hardware error
1348  * conditions. This type of error is indicated by HBA by setting ER1
1349  * and another ER bit in the host status register. The driver will
1350  * wait until the ER1 bit clears before handling the error condition.
1351  **/
1352 static void
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1354 {
1355         uint32_t old_host_status = phba->work_hs;
1356         struct lpfc_sli *psli = &phba->sli;
1357
1358         /* If the pci channel is offline, ignore possible errors,
1359          * since we cannot communicate with the pci card anyway.
1360          */
1361         if (pci_channel_offline(phba->pcidev)) {
1362                 spin_lock_irq(&phba->hbalock);
1363                 phba->hba_flag &= ~DEFER_ERATT;
1364                 spin_unlock_irq(&phba->hbalock);
1365                 return;
1366         }
1367
1368         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369                 "0479 Deferred Adapter Hardware Error "
1370                 "Data: x%x x%x x%x\n",
1371                 phba->work_hs,
1372                 phba->work_status[0], phba->work_status[1]);
1373
1374         spin_lock_irq(&phba->hbalock);
1375         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376         spin_unlock_irq(&phba->hbalock);
1377
1378
1379         /*
1380          * Firmware stops when it triggred erratt. That could cause the I/Os
1381          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382          * SCSI layer retry it after re-establishing link.
1383          */
1384         lpfc_sli_abort_fcp_rings(phba);
1385
1386         /*
1387          * There was a firmware error. Take the hba offline and then
1388          * attempt to restart it.
1389          */
1390         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1391         lpfc_offline(phba);
1392
1393         /* Wait for the ER1 bit to clear.*/
1394         while (phba->work_hs & HS_FFER1) {
1395                 msleep(100);
1396                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397                         phba->work_hs = UNPLUG_ERR ;
1398                         break;
1399                 }
1400                 /* If driver is unloading let the worker thread continue */
1401                 if (phba->pport->load_flag & FC_UNLOADING) {
1402                         phba->work_hs = 0;
1403                         break;
1404                 }
1405         }
1406
1407         /*
1408          * This is to ptrotect against a race condition in which
1409          * first write to the host attention register clear the
1410          * host status register.
1411          */
1412         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413                 phba->work_hs = old_host_status & ~HS_FFER1;
1414
1415         spin_lock_irq(&phba->hbalock);
1416         phba->hba_flag &= ~DEFER_ERATT;
1417         spin_unlock_irq(&phba->hbalock);
1418         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1420 }
1421
1422 static void
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1424 {
1425         struct lpfc_board_event_header board_event;
1426         struct Scsi_Host *shost;
1427
1428         board_event.event_type = FC_REG_BOARD_EVENT;
1429         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430         shost = lpfc_shost_from_vport(phba->pport);
1431         fc_host_post_vendor_event(shost, fc_get_event_number(),
1432                                   sizeof(board_event),
1433                                   (char *) &board_event,
1434                                   LPFC_NL_VENDOR_ID);
1435 }
1436
1437 /**
1438  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439  * @phba: pointer to lpfc hba data structure.
1440  *
1441  * This routine is invoked to handle the following HBA hardware error
1442  * conditions:
1443  * 1 - HBA error attention interrupt
1444  * 2 - DMA ring index out of range
1445  * 3 - Mailbox command came back as unknown
1446  **/
1447 static void
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1449 {
1450         struct lpfc_vport *vport = phba->pport;
1451         struct lpfc_sli   *psli = &phba->sli;
1452         uint32_t event_data;
1453         unsigned long temperature;
1454         struct temp_event temp_event_data;
1455         struct Scsi_Host  *shost;
1456
1457         /* If the pci channel is offline, ignore possible errors,
1458          * since we cannot communicate with the pci card anyway.
1459          */
1460         if (pci_channel_offline(phba->pcidev)) {
1461                 spin_lock_irq(&phba->hbalock);
1462                 phba->hba_flag &= ~DEFER_ERATT;
1463                 spin_unlock_irq(&phba->hbalock);
1464                 return;
1465         }
1466
1467         /* If resets are disabled then leave the HBA alone and return */
1468         if (!phba->cfg_enable_hba_reset)
1469                 return;
1470
1471         /* Send an internal error event to mgmt application */
1472         lpfc_board_errevt_to_mgmt(phba);
1473
1474         if (phba->hba_flag & DEFER_ERATT)
1475                 lpfc_handle_deferred_eratt(phba);
1476
1477         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478                 if (phba->work_hs & HS_FFER6)
1479                         /* Re-establishing Link */
1480                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481                                         "1301 Re-establishing Link "
1482                                         "Data: x%x x%x x%x\n",
1483                                         phba->work_hs, phba->work_status[0],
1484                                         phba->work_status[1]);
1485                 if (phba->work_hs & HS_FFER8)
1486                         /* Device Zeroization */
1487                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488                                         "2861 Host Authentication device "
1489                                         "zeroization Data:x%x x%x x%x\n",
1490                                         phba->work_hs, phba->work_status[0],
1491                                         phba->work_status[1]);
1492
1493                 spin_lock_irq(&phba->hbalock);
1494                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495                 spin_unlock_irq(&phba->hbalock);
1496
1497                 /*
1498                 * Firmware stops when it triggled erratt with HS_FFER6.
1499                 * That could cause the I/Os dropped by the firmware.
1500                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501                 * retry it after re-establishing link.
1502                 */
1503                 lpfc_sli_abort_fcp_rings(phba);
1504
1505                 /*
1506                  * There was a firmware error.  Take the hba offline and then
1507                  * attempt to restart it.
1508                  */
1509                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1510                 lpfc_offline(phba);
1511                 lpfc_sli_brdrestart(phba);
1512                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1513                         lpfc_unblock_mgmt_io(phba);
1514                         return;
1515                 }
1516                 lpfc_unblock_mgmt_io(phba);
1517         } else if (phba->work_hs & HS_CRIT_TEMP) {
1518                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521                 temp_event_data.data = (uint32_t)temperature;
1522
1523                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524                                 "0406 Adapter maximum temperature exceeded "
1525                                 "(%ld), taking this port offline "
1526                                 "Data: x%x x%x x%x\n",
1527                                 temperature, phba->work_hs,
1528                                 phba->work_status[0], phba->work_status[1]);
1529
1530                 shost = lpfc_shost_from_vport(phba->pport);
1531                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532                                           sizeof(temp_event_data),
1533                                           (char *) &temp_event_data,
1534                                           SCSI_NL_VID_TYPE_PCI
1535                                           | PCI_VENDOR_ID_EMULEX);
1536
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->over_temp_state = HBA_OVER_TEMP;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 lpfc_offline_eratt(phba);
1541
1542         } else {
1543                 /* The if clause above forces this code path when the status
1544                  * failure is a value other than FFER6. Do not call the offline
1545                  * twice. This is the adapter hardware error path.
1546                  */
1547                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548                                 "0457 Adapter Hardware Error "
1549                                 "Data: x%x x%x x%x\n",
1550                                 phba->work_hs,
1551                                 phba->work_status[0], phba->work_status[1]);
1552
1553                 event_data = FC_REG_DUMP_EVENT;
1554                 shost = lpfc_shost_from_vport(vport);
1555                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556                                 sizeof(event_data), (char *) &event_data,
1557                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1558
1559                 lpfc_offline_eratt(phba);
1560         }
1561         return;
1562 }
1563
1564 /**
1565  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566  * @phba: pointer to lpfc hba data structure.
1567  * @mbx_action: flag for mailbox shutdown action.
1568  *
1569  * This routine is invoked to perform an SLI4 port PCI function reset in
1570  * response to port status register polling attention. It waits for port
1571  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572  * During this process, interrupt vectors are freed and later requested
1573  * for handling possible port resource change.
1574  **/
1575 static int
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1577                             bool en_rn_msg)
1578 {
1579         int rc;
1580         uint32_t intr_mode;
1581
1582         /*
1583          * On error status condition, driver need to wait for port
1584          * ready before performing reset.
1585          */
1586         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1587         if (!rc) {
1588                 /* need reset: attempt for port recovery */
1589                 if (en_rn_msg)
1590                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591                                         "2887 Reset Needed: Attempting Port "
1592                                         "Recovery...\n");
1593                 lpfc_offline_prep(phba, mbx_action);
1594                 lpfc_offline(phba);
1595                 /* release interrupt for possible resource change */
1596                 lpfc_sli4_disable_intr(phba);
1597                 lpfc_sli_brdrestart(phba);
1598                 /* request and enable interrupt */
1599                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600                 if (intr_mode == LPFC_INTR_ERROR) {
1601                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602                                         "3175 Failed to enable interrupt\n");
1603                         return -EIO;
1604                 } else {
1605                         phba->intr_mode = intr_mode;
1606                 }
1607                 rc = lpfc_online(phba);
1608                 if (rc == 0)
1609                         lpfc_unblock_mgmt_io(phba);
1610         }
1611         return rc;
1612 }
1613
1614 /**
1615  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616  * @phba: pointer to lpfc hba data structure.
1617  *
1618  * This routine is invoked to handle the SLI4 HBA hardware error attention
1619  * conditions.
1620  **/
1621 static void
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         uint32_t event_data;
1626         struct Scsi_Host *shost;
1627         uint32_t if_type;
1628         struct lpfc_register portstat_reg = {0};
1629         uint32_t reg_err1, reg_err2;
1630         uint32_t uerrlo_reg, uemasklo_reg;
1631         uint32_t pci_rd_rc1, pci_rd_rc2;
1632         bool en_rn_msg = true;
1633         struct temp_event temp_event_data;
1634         int rc;
1635
1636         /* If the pci channel is offline, ignore possible errors, since
1637          * we cannot communicate with the pci card anyway.
1638          */
1639         if (pci_channel_offline(phba->pcidev))
1640                 return;
1641
1642         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1643         switch (if_type) {
1644         case LPFC_SLI_INTF_IF_TYPE_0:
1645                 pci_rd_rc1 = lpfc_readl(
1646                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1647                                 &uerrlo_reg);
1648                 pci_rd_rc2 = lpfc_readl(
1649                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1650                                 &uemasklo_reg);
1651                 /* consider PCI bus read error as pci_channel_offline */
1652                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1653                         return;
1654                 lpfc_sli4_offline_eratt(phba);
1655                 break;
1656
1657         case LPFC_SLI_INTF_IF_TYPE_2:
1658                 pci_rd_rc1 = lpfc_readl(
1659                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660                                 &portstat_reg.word0);
1661                 /* consider PCI bus read error as pci_channel_offline */
1662                 if (pci_rd_rc1 == -EIO) {
1663                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664                                 "3151 PCI bus read access failure: x%x\n",
1665                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1666                         return;
1667                 }
1668                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2889 Port Overtemperature event, "
1673                                 "taking port offline Data: x%x x%x\n",
1674                                 reg_err1, reg_err2);
1675
1676                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1678                         temp_event_data.data = 0xFFFFFFFF;
1679
1680                         shost = lpfc_shost_from_vport(phba->pport);
1681                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1682                                                   sizeof(temp_event_data),
1683                                                   (char *)&temp_event_data,
1684                                                   SCSI_NL_VID_TYPE_PCI
1685                                                   | PCI_VENDOR_ID_EMULEX);
1686
1687                         spin_lock_irq(&phba->hbalock);
1688                         phba->over_temp_state = HBA_OVER_TEMP;
1689                         spin_unlock_irq(&phba->hbalock);
1690                         lpfc_sli4_offline_eratt(phba);
1691                         return;
1692                 }
1693                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696                                         "3143 Port Down: Firmware Update "
1697                                         "Detected\n");
1698                         en_rn_msg = false;
1699                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702                                         "3144 Port Down: Debug Dump\n");
1703                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706                                         "3145 Port Down: Provisioning\n");
1707
1708                 /* If resets are disabled then leave the HBA alone and return */
1709                 if (!phba->cfg_enable_hba_reset)
1710                         return;
1711
1712                 /* Check port status register for function reset */
1713                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1714                                 en_rn_msg);
1715                 if (rc == 0) {
1716                         /* don't report event on forced debug dump */
1717                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1719                                 return;
1720                         else
1721                                 break;
1722                 }
1723                 /* fall through for not able to recover */
1724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725                                 "3152 Unrecoverable error, bring the port "
1726                                 "offline\n");
1727                 lpfc_sli4_offline_eratt(phba);
1728                 break;
1729         case LPFC_SLI_INTF_IF_TYPE_1:
1730         default:
1731                 break;
1732         }
1733         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734                         "3123 Report dump event to upper layer\n");
1735         /* Send an internal error event to mgmt application */
1736         lpfc_board_errevt_to_mgmt(phba);
1737
1738         event_data = FC_REG_DUMP_EVENT;
1739         shost = lpfc_shost_from_vport(vport);
1740         fc_host_post_vendor_event(shost, fc_get_event_number(),
1741                                   sizeof(event_data), (char *) &event_data,
1742                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1743 }
1744
1745 /**
1746  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747  * @phba: pointer to lpfc HBA data structure.
1748  *
1749  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750  * routine from the API jump table function pointer from the lpfc_hba struct.
1751  *
1752  * Return codes
1753  *   0 - success.
1754  *   Any other value - error.
1755  **/
1756 void
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1758 {
1759         (*phba->lpfc_handle_eratt)(phba);
1760 }
1761
1762 /**
1763  * lpfc_handle_latt - The HBA link event handler
1764  * @phba: pointer to lpfc hba data structure.
1765  *
1766  * This routine is invoked from the worker thread to handle a HBA host
1767  * attention link event.
1768  **/
1769 void
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1771 {
1772         struct lpfc_vport *vport = phba->pport;
1773         struct lpfc_sli   *psli = &phba->sli;
1774         LPFC_MBOXQ_t *pmb;
1775         volatile uint32_t control;
1776         struct lpfc_dmabuf *mp;
1777         int rc = 0;
1778
1779         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1780         if (!pmb) {
1781                 rc = 1;
1782                 goto lpfc_handle_latt_err_exit;
1783         }
1784
1785         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1786         if (!mp) {
1787                 rc = 2;
1788                 goto lpfc_handle_latt_free_pmb;
1789         }
1790
1791         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1792         if (!mp->virt) {
1793                 rc = 3;
1794                 goto lpfc_handle_latt_free_mp;
1795         }
1796
1797         /* Cleanup any outstanding ELS commands */
1798         lpfc_els_flush_all_cmd(phba);
1799
1800         psli->slistat.link_event++;
1801         lpfc_read_topology(phba, pmb, mp);
1802         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1803         pmb->vport = vport;
1804         /* Block ELS IOCBs until we have processed this mbox command */
1805         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807         if (rc == MBX_NOT_FINISHED) {
1808                 rc = 4;
1809                 goto lpfc_handle_latt_free_mbuf;
1810         }
1811
1812         /* Clear Link Attention in HA REG */
1813         spin_lock_irq(&phba->hbalock);
1814         writel(HA_LATT, phba->HAregaddr);
1815         readl(phba->HAregaddr); /* flush */
1816         spin_unlock_irq(&phba->hbalock);
1817
1818         return;
1819
1820 lpfc_handle_latt_free_mbuf:
1821         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1824         kfree(mp);
1825 lpfc_handle_latt_free_pmb:
1826         mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828         /* Enable Link attention interrupts */
1829         spin_lock_irq(&phba->hbalock);
1830         psli->sli_flag |= LPFC_PROCESS_LA;
1831         control = readl(phba->HCregaddr);
1832         control |= HC_LAINT_ENA;
1833         writel(control, phba->HCregaddr);
1834         readl(phba->HCregaddr); /* flush */
1835
1836         /* Clear Link Attention in HA REG */
1837         writel(HA_LATT, phba->HAregaddr);
1838         readl(phba->HAregaddr); /* flush */
1839         spin_unlock_irq(&phba->hbalock);
1840         lpfc_linkdown(phba);
1841         phba->link_state = LPFC_HBA_ERROR;
1842
1843         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1845
1846         return;
1847 }
1848
1849 /**
1850  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851  * @phba: pointer to lpfc hba data structure.
1852  * @vpd: pointer to the vital product data.
1853  * @len: length of the vital product data in bytes.
1854  *
1855  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856  * an array of characters. In this routine, the ModelName, ProgramType, and
1857  * ModelDesc, etc. fields of the phba data structure will be populated.
1858  *
1859  * Return codes
1860  *   0 - pointer to the VPD passed in is NULL
1861  *   1 - success
1862  **/
1863 int
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1865 {
1866         uint8_t lenlo, lenhi;
1867         int Length;
1868         int i, j;
1869         int finished = 0;
1870         int index = 0;
1871
1872         if (!vpd)
1873                 return 0;
1874
1875         /* Vital Product */
1876         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1879                         (uint32_t) vpd[3]);
1880         while (!finished && (index < (len - 4))) {
1881                 switch (vpd[index]) {
1882                 case 0x82:
1883                 case 0x91:
1884                         index += 1;
1885                         lenlo = vpd[index];
1886                         index += 1;
1887                         lenhi = vpd[index];
1888                         index += 1;
1889                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1890                         index += i;
1891                         break;
1892                 case 0x90:
1893                         index += 1;
1894                         lenlo = vpd[index];
1895                         index += 1;
1896                         lenhi = vpd[index];
1897                         index += 1;
1898                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899                         if (Length > len - index)
1900                                 Length = len - index;
1901                         while (Length > 0) {
1902                         /* Look for Serial Number */
1903                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1904                                 index += 2;
1905                                 i = vpd[index];
1906                                 index += 1;
1907                                 j = 0;
1908                                 Length -= (3+i);
1909                                 while(i--) {
1910                                         phba->SerialNumber[j++] = vpd[index++];
1911                                         if (j == 31)
1912                                                 break;
1913                                 }
1914                                 phba->SerialNumber[j] = 0;
1915                                 continue;
1916                         }
1917                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918                                 phba->vpd_flag |= VPD_MODEL_DESC;
1919                                 index += 2;
1920                                 i = vpd[index];
1921                                 index += 1;
1922                                 j = 0;
1923                                 Length -= (3+i);
1924                                 while(i--) {
1925                                         phba->ModelDesc[j++] = vpd[index++];
1926                                         if (j == 255)
1927                                                 break;
1928                                 }
1929                                 phba->ModelDesc[j] = 0;
1930                                 continue;
1931                         }
1932                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933                                 phba->vpd_flag |= VPD_MODEL_NAME;
1934                                 index += 2;
1935                                 i = vpd[index];
1936                                 index += 1;
1937                                 j = 0;
1938                                 Length -= (3+i);
1939                                 while(i--) {
1940                                         phba->ModelName[j++] = vpd[index++];
1941                                         if (j == 79)
1942                                                 break;
1943                                 }
1944                                 phba->ModelName[j] = 0;
1945                                 continue;
1946                         }
1947                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1949                                 index += 2;
1950                                 i = vpd[index];
1951                                 index += 1;
1952                                 j = 0;
1953                                 Length -= (3+i);
1954                                 while(i--) {
1955                                         phba->ProgramType[j++] = vpd[index++];
1956                                         if (j == 255)
1957                                                 break;
1958                                 }
1959                                 phba->ProgramType[j] = 0;
1960                                 continue;
1961                         }
1962                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963                                 phba->vpd_flag |= VPD_PORT;
1964                                 index += 2;
1965                                 i = vpd[index];
1966                                 index += 1;
1967                                 j = 0;
1968                                 Length -= (3+i);
1969                                 while(i--) {
1970                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971                                             (phba->sli4_hba.pport_name_sta ==
1972                                              LPFC_SLI4_PPNAME_GET)) {
1973                                                 j++;
1974                                                 index++;
1975                                         } else
1976                                                 phba->Port[j++] = vpd[index++];
1977                                         if (j == 19)
1978                                                 break;
1979                                 }
1980                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981                                     (phba->sli4_hba.pport_name_sta ==
1982                                      LPFC_SLI4_PPNAME_NON))
1983                                         phba->Port[j] = 0;
1984                                 continue;
1985                         }
1986                         else {
1987                                 index += 2;
1988                                 i = vpd[index];
1989                                 index += 1;
1990                                 index += i;
1991                                 Length -= (3 + i);
1992                         }
1993                 }
1994                 finished = 0;
1995                 break;
1996                 case 0x78:
1997                         finished = 1;
1998                         break;
1999                 default:
2000                         index ++;
2001                         break;
2002                 }
2003         }
2004
2005         return(1);
2006 }
2007
2008 /**
2009  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010  * @phba: pointer to lpfc hba data structure.
2011  * @mdp: pointer to the data structure to hold the derived model name.
2012  * @descp: pointer to the data structure to hold the derived description.
2013  *
2014  * This routine retrieves HBA's description based on its registered PCI device
2015  * ID. The @descp passed into this function points to an array of 256 chars. It
2016  * shall be returned with the model name, maximum speed, and the host bus type.
2017  * The @mdp passed into this function points to an array of 80 chars. When the
2018  * function returns, the @mdp will be filled with the model name.
2019  **/
2020 static void
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2022 {
2023         lpfc_vpd_t *vp;
2024         uint16_t dev_id = phba->pcidev->device;
2025         int max_speed;
2026         int GE = 0;
2027         int oneConnect = 0; /* default is not a oneConnect */
2028         struct {
2029                 char *name;
2030                 char *bus;
2031                 char *function;
2032         } m = {"<Unknown>", "", ""};
2033
2034         if (mdp && mdp[0] != '\0'
2035                 && descp && descp[0] != '\0')
2036                 return;
2037
2038         if (phba->lmt & LMT_16Gb)
2039                 max_speed = 16;
2040         else if (phba->lmt & LMT_10Gb)
2041                 max_speed = 10;
2042         else if (phba->lmt & LMT_8Gb)
2043                 max_speed = 8;
2044         else if (phba->lmt & LMT_4Gb)
2045                 max_speed = 4;
2046         else if (phba->lmt & LMT_2Gb)
2047                 max_speed = 2;
2048         else if (phba->lmt & LMT_1Gb)
2049                 max_speed = 1;
2050         else
2051                 max_speed = 0;
2052
2053         vp = &phba->vpd;
2054
2055         switch (dev_id) {
2056         case PCI_DEVICE_ID_FIREFLY:
2057                 m = (typeof(m)){"LP6000", "PCI",
2058                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2059                 break;
2060         case PCI_DEVICE_ID_SUPERFLY:
2061                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062                         m = (typeof(m)){"LP7000", "PCI", ""};
2063                 else
2064                         m = (typeof(m)){"LP7000E", "PCI", ""};
2065                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2066                 break;
2067         case PCI_DEVICE_ID_DRAGONFLY:
2068                 m = (typeof(m)){"LP8000", "PCI",
2069                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2070                 break;
2071         case PCI_DEVICE_ID_CENTAUR:
2072                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073                         m = (typeof(m)){"LP9002", "PCI", ""};
2074                 else
2075                         m = (typeof(m)){"LP9000", "PCI", ""};
2076                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2077                 break;
2078         case PCI_DEVICE_ID_RFLY:
2079                 m = (typeof(m)){"LP952", "PCI",
2080                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_PEGASUS:
2083                 m = (typeof(m)){"LP9802", "PCI-X",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_THOR:
2087                 m = (typeof(m)){"LP10000", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_VIPER:
2091                 m = (typeof(m)){"LPX1000",  "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_PFLY:
2095                 m = (typeof(m)){"LP982", "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_TFLY:
2099                 m = (typeof(m)){"LP1050", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_HELIOS:
2103                 m = (typeof(m)){"LP11000", "PCI-X2",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS_SCSP:
2107                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_DCSP:
2111                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_NEPTUNE:
2115                 m = (typeof(m)){"LPe1000", "PCIe",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_BMID:
2127                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2128                 break;
2129         case PCI_DEVICE_ID_BSMB:
2130                 m = (typeof(m)){"LP111", "PCI-X2",
2131                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_ZEPHYR:
2134                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2141                 GE = 1;
2142                 break;
2143         case PCI_DEVICE_ID_ZMID:
2144                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZSMB:
2147                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_LP101:
2150                 m = (typeof(m)){"LP101", "PCI-X",
2151                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP10000S:
2154                 m = (typeof(m)){"LP10000-S", "PCI",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP11000S:
2158                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LPE11000S:
2162                 m = (typeof(m)){"LPe11000-S", "PCIe",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_SAT:
2166                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2167                 break;
2168         case PCI_DEVICE_ID_SAT_MID:
2169                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_SAT_SMB:
2172                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2173                 break;
2174         case PCI_DEVICE_ID_SAT_DCSP:
2175                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2176                 break;
2177         case PCI_DEVICE_ID_SAT_SCSP:
2178                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2179                 break;
2180         case PCI_DEVICE_ID_SAT_S:
2181                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2182                 break;
2183         case PCI_DEVICE_ID_HORNET:
2184                 m = (typeof(m)){"LP21000", "PCIe",
2185                                 "Obsolete, Unsupported FCoE Adapter"};
2186                 GE = 1;
2187                 break;
2188         case PCI_DEVICE_ID_PROTEUS_VF:
2189                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_PF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_S:
2197                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_TIGERSHARK:
2201                 oneConnect = 1;
2202                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2203                 break;
2204         case PCI_DEVICE_ID_TOMCAT:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_FALCON:
2209                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210                                 "EmulexSecure Fibre"};
2211                 break;
2212         case PCI_DEVICE_ID_BALIUS:
2213                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_LANCER_FC:
2217                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2218                 break;
2219         case PCI_DEVICE_ID_LANCER_FC_VF:
2220                 m = (typeof(m)){"LPe16000", "PCIe",
2221                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FCOE:
2224                 oneConnect = 1;
2225                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe",
2230                                 "Obsolete, Unsupported FCoE"};
2231                 break;
2232         case PCI_DEVICE_ID_SKYHAWK:
2233         case PCI_DEVICE_ID_SKYHAWK_VF:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2236                 break;
2237         default:
2238                 m = (typeof(m)){"Unknown", "", ""};
2239                 break;
2240         }
2241
2242         if (mdp && mdp[0] == '\0')
2243                 snprintf(mdp, 79,"%s", m.name);
2244         /*
2245          * oneConnect hba requires special processing, they are all initiators
2246          * and we put the port number on the end
2247          */
2248         if (descp && descp[0] == '\0') {
2249                 if (oneConnect)
2250                         snprintf(descp, 255,
2251                                 "Emulex OneConnect %s, %s Initiator %s",
2252                                 m.name, m.function,
2253                                 phba->Port);
2254                 else if (max_speed == 0)
2255                         snprintf(descp, 255,
2256                                 "Emulex %s %s %s ",
2257                                 m.name, m.bus, m.function);
2258                 else
2259                         snprintf(descp, 255,
2260                                 "Emulex %s %d%s %s %s",
2261                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2262                                 m.bus, m.function);
2263         }
2264 }
2265
2266 /**
2267  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268  * @phba: pointer to lpfc hba data structure.
2269  * @pring: pointer to a IOCB ring.
2270  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2271  *
2272  * This routine posts a given number of IOCBs with the associated DMA buffer
2273  * descriptors specified by the cnt argument to the given IOCB ring.
2274  *
2275  * Return codes
2276  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2277  **/
2278 int
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2280 {
2281         IOCB_t *icmd;
2282         struct lpfc_iocbq *iocb;
2283         struct lpfc_dmabuf *mp1, *mp2;
2284
2285         cnt += pring->missbufcnt;
2286
2287         /* While there are buffers to post */
2288         while (cnt > 0) {
2289                 /* Allocate buffer for  command iocb */
2290                 iocb = lpfc_sli_get_iocbq(phba);
2291                 if (iocb == NULL) {
2292                         pring->missbufcnt = cnt;
2293                         return cnt;
2294                 }
2295                 icmd = &iocb->iocb;
2296
2297                 /* 2 buffers can be posted per command */
2298                 /* Allocate buffer to post */
2299                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2300                 if (mp1)
2301                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302                 if (!mp1 || !mp1->virt) {
2303                         kfree(mp1);
2304                         lpfc_sli_release_iocbq(phba, iocb);
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308
2309                 INIT_LIST_HEAD(&mp1->list);
2310                 /* Allocate buffer to post */
2311                 if (cnt > 1) {
2312                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                         if (mp2)
2314                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2315                                                             &mp2->phys);
2316                         if (!mp2 || !mp2->virt) {
2317                                 kfree(mp2);
2318                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2319                                 kfree(mp1);
2320                                 lpfc_sli_release_iocbq(phba, iocb);
2321                                 pring->missbufcnt = cnt;
2322                                 return cnt;
2323                         }
2324
2325                         INIT_LIST_HEAD(&mp2->list);
2326                 } else {
2327                         mp2 = NULL;
2328                 }
2329
2330                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333                 icmd->ulpBdeCount = 1;
2334                 cnt--;
2335                 if (mp2) {
2336                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2339                         cnt--;
2340                         icmd->ulpBdeCount = 2;
2341                 }
2342
2343                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2344                 icmd->ulpLe = 1;
2345
2346                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2347                     IOCB_ERROR) {
2348                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2349                         kfree(mp1);
2350                         cnt++;
2351                         if (mp2) {
2352                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2353                                 kfree(mp2);
2354                                 cnt++;
2355                         }
2356                         lpfc_sli_release_iocbq(phba, iocb);
2357                         pring->missbufcnt = cnt;
2358                         return cnt;
2359                 }
2360                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2361                 if (mp2)
2362                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2363         }
2364         pring->missbufcnt = 0;
2365         return 0;
2366 }
2367
2368 /**
2369  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370  * @phba: pointer to lpfc hba data structure.
2371  *
2372  * This routine posts initial receive IOCB buffers to the ELS ring. The
2373  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2374  * set to 64 IOCBs.
2375  *
2376  * Return codes
2377  *   0 - success (currently always success)
2378  **/
2379 static int
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2381 {
2382         struct lpfc_sli *psli = &phba->sli;
2383
2384         /* Ring 0, ELS / CT buffers */
2385         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386         /* Ring 2 - FCP no buffers needed */
2387
2388         return 0;
2389 }
2390
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2392
2393 /**
2394  * lpfc_sha_init - Set up initial array of hash table entries
2395  * @HashResultPointer: pointer to an array as hash table.
2396  *
2397  * This routine sets up the initial values to the array of hash table entries
2398  * for the LC HBAs.
2399  **/
2400 static void
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2402 {
2403         HashResultPointer[0] = 0x67452301;
2404         HashResultPointer[1] = 0xEFCDAB89;
2405         HashResultPointer[2] = 0x98BADCFE;
2406         HashResultPointer[3] = 0x10325476;
2407         HashResultPointer[4] = 0xC3D2E1F0;
2408 }
2409
2410 /**
2411  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412  * @HashResultPointer: pointer to an initial/result hash table.
2413  * @HashWorkingPointer: pointer to an working hash table.
2414  *
2415  * This routine iterates an initial hash table pointed by @HashResultPointer
2416  * with the values from the working hash table pointeed by @HashWorkingPointer.
2417  * The results are putting back to the initial hash table, returned through
2418  * the @HashResultPointer as the result hash table.
2419  **/
2420 static void
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2422 {
2423         int t;
2424         uint32_t TEMP;
2425         uint32_t A, B, C, D, E;
2426         t = 16;
2427         do {
2428                 HashWorkingPointer[t] =
2429                     S(1,
2430                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2431                                                                      8] ^
2432                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433         } while (++t <= 79);
2434         t = 0;
2435         A = HashResultPointer[0];
2436         B = HashResultPointer[1];
2437         C = HashResultPointer[2];
2438         D = HashResultPointer[3];
2439         E = HashResultPointer[4];
2440
2441         do {
2442                 if (t < 20) {
2443                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444                 } else if (t < 40) {
2445                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446                 } else if (t < 60) {
2447                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2448                 } else {
2449                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2450                 }
2451                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2452                 E = D;
2453                 D = C;
2454                 C = S(30, B);
2455                 B = A;
2456                 A = TEMP;
2457         } while (++t <= 79);
2458
2459         HashResultPointer[0] += A;
2460         HashResultPointer[1] += B;
2461         HashResultPointer[2] += C;
2462         HashResultPointer[3] += D;
2463         HashResultPointer[4] += E;
2464
2465 }
2466
2467 /**
2468  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469  * @RandomChallenge: pointer to the entry of host challenge random number array.
2470  * @HashWorking: pointer to the entry of the working hash array.
2471  *
2472  * This routine calculates the working hash array referred by @HashWorking
2473  * from the challenge random numbers associated with the host, referred by
2474  * @RandomChallenge. The result is put into the entry of the working hash
2475  * array and returned by reference through @HashWorking.
2476  **/
2477 static void
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2479 {
2480         *HashWorking = (*RandomChallenge ^ *HashWorking);
2481 }
2482
2483 /**
2484  * lpfc_hba_init - Perform special handling for LC HBA initialization
2485  * @phba: pointer to lpfc hba data structure.
2486  * @hbainit: pointer to an array of unsigned 32-bit integers.
2487  *
2488  * This routine performs the special handling for LC HBA initialization.
2489  **/
2490 void
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2492 {
2493         int t;
2494         uint32_t *HashWorking;
2495         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2496
2497         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2498         if (!HashWorking)
2499                 return;
2500
2501         HashWorking[0] = HashWorking[78] = *pwwnn++;
2502         HashWorking[1] = HashWorking[79] = *pwwnn;
2503
2504         for (t = 0; t < 7; t++)
2505                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2506
2507         lpfc_sha_init(hbainit);
2508         lpfc_sha_iterate(hbainit, HashWorking);
2509         kfree(HashWorking);
2510 }
2511
2512 /**
2513  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514  * @vport: pointer to a virtual N_Port data structure.
2515  *
2516  * This routine performs the necessary cleanups before deleting the @vport.
2517  * It invokes the discovery state machine to perform necessary state
2518  * transitions and to release the ndlps associated with the @vport. Note,
2519  * the physical port is treated as @vport 0.
2520  **/
2521 void
2522 lpfc_cleanup(struct lpfc_vport *vport)
2523 {
2524         struct lpfc_hba   *phba = vport->phba;
2525         struct lpfc_nodelist *ndlp, *next_ndlp;
2526         int i = 0;
2527
2528         if (phba->link_state > LPFC_LINK_DOWN)
2529                 lpfc_port_link_failure(vport);
2530
2531         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533                         ndlp = lpfc_enable_node(vport, ndlp,
2534                                                 NLP_STE_UNUSED_NODE);
2535                         if (!ndlp)
2536                                 continue;
2537                         spin_lock_irq(&phba->ndlp_lock);
2538                         NLP_SET_FREE_REQ(ndlp);
2539                         spin_unlock_irq(&phba->ndlp_lock);
2540                         /* Trigger the release of the ndlp memory */
2541                         lpfc_nlp_put(ndlp);
2542                         continue;
2543                 }
2544                 spin_lock_irq(&phba->ndlp_lock);
2545                 if (NLP_CHK_FREE_REQ(ndlp)) {
2546                         /* The ndlp should not be in memory free mode already */
2547                         spin_unlock_irq(&phba->ndlp_lock);
2548                         continue;
2549                 } else
2550                         /* Indicate request for freeing ndlp memory */
2551                         NLP_SET_FREE_REQ(ndlp);
2552                 spin_unlock_irq(&phba->ndlp_lock);
2553
2554                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555                     ndlp->nlp_DID == Fabric_DID) {
2556                         /* Just free up ndlp with Fabric_DID for vports */
2557                         lpfc_nlp_put(ndlp);
2558                         continue;
2559                 }
2560
2561                 /* take care of nodes in unused state before the state
2562                  * machine taking action.
2563                  */
2564                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2565                         lpfc_nlp_put(ndlp);
2566                         continue;
2567                 }
2568
2569                 if (ndlp->nlp_type & NLP_FABRIC)
2570                         lpfc_disc_state_machine(vport, ndlp, NULL,
2571                                         NLP_EVT_DEVICE_RECOVERY);
2572
2573                 lpfc_disc_state_machine(vport, ndlp, NULL,
2574                                              NLP_EVT_DEVICE_RM);
2575         }
2576
2577         /* At this point, ALL ndlp's should be gone
2578          * because of the previous NLP_EVT_DEVICE_RM.
2579          * Lets wait for this to happen, if needed.
2580          */
2581         while (!list_empty(&vport->fc_nodes)) {
2582                 if (i++ > 3000) {
2583                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584                                 "0233 Nodelist not empty\n");
2585                         list_for_each_entry_safe(ndlp, next_ndlp,
2586                                                 &vport->fc_nodes, nlp_listp) {
2587                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2588                                                 LOG_NODE,
2589                                                 "0282 did:x%x ndlp:x%p "
2590                                                 "usgmap:x%x refcnt:%d\n",
2591                                                 ndlp->nlp_DID, (void *)ndlp,
2592                                                 ndlp->nlp_usg_map,
2593                                                 atomic_read(
2594                                                         &ndlp->kref.refcount));
2595                         }
2596                         break;
2597                 }
2598
2599                 /* Wait for any activity on ndlps to settle */
2600                 msleep(10);
2601         }
2602         lpfc_cleanup_vports_rrqs(vport, NULL);
2603 }
2604
2605 /**
2606  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607  * @vport: pointer to a virtual N_Port data structure.
2608  *
2609  * This routine stops all the timers associated with a @vport. This function
2610  * is invoked before disabling or deleting a @vport. Note that the physical
2611  * port is treated as @vport 0.
2612  **/
2613 void
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2615 {
2616         del_timer_sync(&vport->els_tmofunc);
2617         del_timer_sync(&vport->fc_fdmitmo);
2618         del_timer_sync(&vport->delayed_disc_tmo);
2619         lpfc_can_disctmo(vport);
2620         return;
2621 }
2622
2623 /**
2624  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625  * @phba: pointer to lpfc hba data structure.
2626  *
2627  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628  * caller of this routine should already hold the host lock.
2629  **/
2630 void
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2632 {
2633         /* Clear pending FCF rediscovery wait flag */
2634         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2635
2636         /* Now, try to stop the timer */
2637         del_timer(&phba->fcf.redisc_wait);
2638 }
2639
2640 /**
2641  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642  * @phba: pointer to lpfc hba data structure.
2643  *
2644  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645  * checks whether the FCF rediscovery wait timer is pending with the host
2646  * lock held before proceeding with disabling the timer and clearing the
2647  * wait timer pendig flag.
2648  **/
2649 void
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2651 {
2652         spin_lock_irq(&phba->hbalock);
2653         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654                 /* FCF rediscovery timer already fired or stopped */
2655                 spin_unlock_irq(&phba->hbalock);
2656                 return;
2657         }
2658         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659         /* Clear failover in progress flags */
2660         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661         spin_unlock_irq(&phba->hbalock);
2662 }
2663
2664 /**
2665  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666  * @phba: pointer to lpfc hba data structure.
2667  *
2668  * This routine stops all the timers associated with a HBA. This function is
2669  * invoked before either putting a HBA offline or unloading the driver.
2670  **/
2671 void
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2673 {
2674         lpfc_stop_vport_timers(phba->pport);
2675         del_timer_sync(&phba->sli.mbox_tmo);
2676         del_timer_sync(&phba->fabric_block_timer);
2677         del_timer_sync(&phba->eratt_poll);
2678         del_timer_sync(&phba->hb_tmofunc);
2679         if (phba->sli_rev == LPFC_SLI_REV4) {
2680                 del_timer_sync(&phba->rrq_tmr);
2681                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2682         }
2683         phba->hb_outstanding = 0;
2684
2685         switch (phba->pci_dev_grp) {
2686         case LPFC_PCI_DEV_LP:
2687                 /* Stop any LightPulse device specific driver timers */
2688                 del_timer_sync(&phba->fcp_poll_timer);
2689                 break;
2690         case LPFC_PCI_DEV_OC:
2691                 /* Stop any OneConnect device sepcific driver timers */
2692                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2693                 break;
2694         default:
2695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696                                 "0297 Invalid device group (x%x)\n",
2697                                 phba->pci_dev_grp);
2698                 break;
2699         }
2700         return;
2701 }
2702
2703 /**
2704  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705  * @phba: pointer to lpfc hba data structure.
2706  *
2707  * This routine marks a HBA's management interface as blocked. Once the HBA's
2708  * management interface is marked as blocked, all the user space access to
2709  * the HBA, whether they are from sysfs interface or libdfc interface will
2710  * all be blocked. The HBA is set to block the management interface when the
2711  * driver prepares the HBA interface for online or offline.
2712  **/
2713 static void
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2715 {
2716         unsigned long iflag;
2717         uint8_t actcmd = MBX_HEARTBEAT;
2718         unsigned long timeout;
2719
2720         spin_lock_irqsave(&phba->hbalock, iflag);
2721         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722         spin_unlock_irqrestore(&phba->hbalock, iflag);
2723         if (mbx_action == LPFC_MBX_NO_WAIT)
2724                 return;
2725         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726         spin_lock_irqsave(&phba->hbalock, iflag);
2727         if (phba->sli.mbox_active) {
2728                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729                 /* Determine how long we might wait for the active mailbox
2730                  * command to be gracefully completed by firmware.
2731                  */
2732                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733                                 phba->sli.mbox_active) * 1000) + jiffies;
2734         }
2735         spin_unlock_irqrestore(&phba->hbalock, iflag);
2736
2737         /* Wait for the outstnading mailbox command to complete */
2738         while (phba->sli.mbox_active) {
2739                 /* Check active mailbox complete status every 2ms */
2740                 msleep(2);
2741                 if (time_after(jiffies, timeout)) {
2742                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743                                 "2813 Mgmt IO is Blocked %x "
2744                                 "- mbox cmd %x still active\n",
2745                                 phba->sli.sli_flag, actcmd);
2746                         break;
2747                 }
2748         }
2749 }
2750
2751 /**
2752  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753  * @phba: pointer to lpfc hba data structure.
2754  *
2755  * Allocate RPIs for all active remote nodes. This is needed whenever
2756  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757  * is to fixup the temporary rpi assignments.
2758  **/
2759 void
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2761 {
2762         struct lpfc_nodelist  *ndlp, *next_ndlp;
2763         struct lpfc_vport **vports;
2764         int i;
2765
2766         if (phba->sli_rev != LPFC_SLI_REV4)
2767                 return;
2768
2769         vports = lpfc_create_vport_work_array(phba);
2770         if (vports != NULL) {
2771                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772                         if (vports[i]->load_flag & FC_UNLOADING)
2773                                 continue;
2774
2775                         list_for_each_entry_safe(ndlp, next_ndlp,
2776                                                  &vports[i]->fc_nodes,
2777                                                  nlp_listp) {
2778                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2779                                         ndlp->nlp_rpi =
2780                                                 lpfc_sli4_alloc_rpi(phba);
2781                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2782                                                          LOG_NODE,
2783                                                          "0009 rpi:%x DID:%x "
2784                                                          "flg:%x map:%x %p\n",
2785                                                          ndlp->nlp_rpi,
2786                                                          ndlp->nlp_DID,
2787                                                          ndlp->nlp_flag,
2788                                                          ndlp->nlp_usg_map,
2789                                                          ndlp);
2790                                 }
2791                         }
2792                 }
2793         }
2794         lpfc_destroy_vport_work_array(phba, vports);
2795 }
2796
2797 /**
2798  * lpfc_online - Initialize and bring a HBA online
2799  * @phba: pointer to lpfc hba data structure.
2800  *
2801  * This routine initializes the HBA and brings a HBA online. During this
2802  * process, the management interface is blocked to prevent user space access
2803  * to the HBA interfering with the driver initialization.
2804  *
2805  * Return codes
2806  *   0 - successful
2807  *   1 - failed
2808  **/
2809 int
2810 lpfc_online(struct lpfc_hba *phba)
2811 {
2812         struct lpfc_vport *vport;
2813         struct lpfc_vport **vports;
2814         int i;
2815         bool vpis_cleared = false;
2816
2817         if (!phba)
2818                 return 0;
2819         vport = phba->pport;
2820
2821         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2822                 return 0;
2823
2824         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2825                         "0458 Bring Adapter online\n");
2826
2827         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2828
2829         if (!lpfc_sli_queue_setup(phba)) {
2830                 lpfc_unblock_mgmt_io(phba);
2831                 return 1;
2832         }
2833
2834         if (phba->sli_rev == LPFC_SLI_REV4) {
2835                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2836                         lpfc_unblock_mgmt_io(phba);
2837                         return 1;
2838                 }
2839                 spin_lock_irq(&phba->hbalock);
2840                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2841                         vpis_cleared = true;
2842                 spin_unlock_irq(&phba->hbalock);
2843         } else {
2844                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2845                         lpfc_unblock_mgmt_io(phba);
2846                         return 1;
2847                 }
2848         }
2849
2850         vports = lpfc_create_vport_work_array(phba);
2851         if (vports != NULL)
2852                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2853                         struct Scsi_Host *shost;
2854                         shost = lpfc_shost_from_vport(vports[i]);
2855                         spin_lock_irq(shost->host_lock);
2856                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2857                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2858                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2859                         if (phba->sli_rev == LPFC_SLI_REV4) {
2860                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2861                                 if ((vpis_cleared) &&
2862                                     (vports[i]->port_type !=
2863                                         LPFC_PHYSICAL_PORT))
2864                                         vports[i]->vpi = 0;
2865                         }
2866                         spin_unlock_irq(shost->host_lock);
2867                 }
2868                 lpfc_destroy_vport_work_array(phba, vports);
2869
2870         lpfc_unblock_mgmt_io(phba);
2871         return 0;
2872 }
2873
2874 /**
2875  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2876  * @phba: pointer to lpfc hba data structure.
2877  *
2878  * This routine marks a HBA's management interface as not blocked. Once the
2879  * HBA's management interface is marked as not blocked, all the user space
2880  * access to the HBA, whether they are from sysfs interface or libdfc
2881  * interface will be allowed. The HBA is set to block the management interface
2882  * when the driver prepares the HBA interface for online or offline and then
2883  * set to unblock the management interface afterwards.
2884  **/
2885 void
2886 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2887 {
2888         unsigned long iflag;
2889
2890         spin_lock_irqsave(&phba->hbalock, iflag);
2891         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2892         spin_unlock_irqrestore(&phba->hbalock, iflag);
2893 }
2894
2895 /**
2896  * lpfc_offline_prep - Prepare a HBA to be brought offline
2897  * @phba: pointer to lpfc hba data structure.
2898  *
2899  * This routine is invoked to prepare a HBA to be brought offline. It performs
2900  * unregistration login to all the nodes on all vports and flushes the mailbox
2901  * queue to make it ready to be brought offline.
2902  **/
2903 void
2904 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2905 {
2906         struct lpfc_vport *vport = phba->pport;
2907         struct lpfc_nodelist  *ndlp, *next_ndlp;
2908         struct lpfc_vport **vports;
2909         struct Scsi_Host *shost;
2910         int i;
2911
2912         if (vport->fc_flag & FC_OFFLINE_MODE)
2913                 return;
2914
2915         lpfc_block_mgmt_io(phba, mbx_action);
2916
2917         lpfc_linkdown(phba);
2918
2919         /* Issue an unreg_login to all nodes on all vports */
2920         vports = lpfc_create_vport_work_array(phba);
2921         if (vports != NULL) {
2922                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2923                         if (vports[i]->load_flag & FC_UNLOADING)
2924                                 continue;
2925                         shost = lpfc_shost_from_vport(vports[i]);
2926                         spin_lock_irq(shost->host_lock);
2927                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2928                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2929                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2930                         spin_unlock_irq(shost->host_lock);
2931
2932                         shost = lpfc_shost_from_vport(vports[i]);
2933                         list_for_each_entry_safe(ndlp, next_ndlp,
2934                                                  &vports[i]->fc_nodes,
2935                                                  nlp_listp) {
2936                                 if (!NLP_CHK_NODE_ACT(ndlp))
2937                                         continue;
2938                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2939                                         continue;
2940                                 if (ndlp->nlp_type & NLP_FABRIC) {
2941                                         lpfc_disc_state_machine(vports[i], ndlp,
2942                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2943                                         lpfc_disc_state_machine(vports[i], ndlp,
2944                                                 NULL, NLP_EVT_DEVICE_RM);
2945                                 }
2946                                 spin_lock_irq(shost->host_lock);
2947                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2948                                 spin_unlock_irq(shost->host_lock);
2949                                 /*
2950                                  * Whenever an SLI4 port goes offline, free the
2951                                  * RPI. Get a new RPI when the adapter port
2952                                  * comes back online.
2953                                  */
2954                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2955                                         lpfc_printf_vlog(ndlp->vport,
2956                                                          KERN_INFO, LOG_NODE,
2957                                                          "0011 lpfc_offline: "
2958                                                          "ndlp:x%p did %x "
2959                                                          "usgmap:x%x rpi:%x\n",
2960                                                          ndlp, ndlp->nlp_DID,
2961                                                          ndlp->nlp_usg_map,
2962                                                          ndlp->nlp_rpi);
2963
2964                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2965                                 }
2966                                 lpfc_unreg_rpi(vports[i], ndlp);
2967                         }
2968                 }
2969         }
2970         lpfc_destroy_vport_work_array(phba, vports);
2971
2972         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2973 }
2974
2975 /**
2976  * lpfc_offline - Bring a HBA offline
2977  * @phba: pointer to lpfc hba data structure.
2978  *
2979  * This routine actually brings a HBA offline. It stops all the timers
2980  * associated with the HBA, brings down the SLI layer, and eventually
2981  * marks the HBA as in offline state for the upper layer protocol.
2982  **/
2983 void
2984 lpfc_offline(struct lpfc_hba *phba)
2985 {
2986         struct Scsi_Host  *shost;
2987         struct lpfc_vport **vports;
2988         int i;
2989
2990         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2991                 return;
2992
2993         /* stop port and all timers associated with this hba */
2994         lpfc_stop_port(phba);
2995         vports = lpfc_create_vport_work_array(phba);
2996         if (vports != NULL)
2997                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2998                         lpfc_stop_vport_timers(vports[i]);
2999         lpfc_destroy_vport_work_array(phba, vports);
3000         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3001                         "0460 Bring Adapter offline\n");
3002         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3003            now.  */
3004         lpfc_sli_hba_down(phba);
3005         spin_lock_irq(&phba->hbalock);
3006         phba->work_ha = 0;
3007         spin_unlock_irq(&phba->hbalock);
3008         vports = lpfc_create_vport_work_array(phba);
3009         if (vports != NULL)
3010                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3011                         shost = lpfc_shost_from_vport(vports[i]);
3012                         spin_lock_irq(shost->host_lock);
3013                         vports[i]->work_port_events = 0;
3014                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3015                         spin_unlock_irq(shost->host_lock);
3016                 }
3017         lpfc_destroy_vport_work_array(phba, vports);
3018 }
3019
3020 /**
3021  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3022  * @phba: pointer to lpfc hba data structure.
3023  *
3024  * This routine is to free all the SCSI buffers and IOCBs from the driver
3025  * list back to kernel. It is called from lpfc_pci_remove_one to free
3026  * the internal resources before the device is removed from the system.
3027  **/
3028 static void
3029 lpfc_scsi_free(struct lpfc_hba *phba)
3030 {
3031         struct lpfc_scsi_buf *sb, *sb_next;
3032         struct lpfc_iocbq *io, *io_next;
3033
3034         spin_lock_irq(&phba->hbalock);
3035
3036         /* Release all the lpfc_scsi_bufs maintained by this host. */
3037
3038         spin_lock(&phba->scsi_buf_list_put_lock);
3039         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3040                                  list) {
3041                 list_del(&sb->list);
3042                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3043                               sb->dma_handle);
3044                 kfree(sb);
3045                 phba->total_scsi_bufs--;
3046         }
3047         spin_unlock(&phba->scsi_buf_list_put_lock);
3048
3049         spin_lock(&phba->scsi_buf_list_get_lock);
3050         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3051                                  list) {
3052                 list_del(&sb->list);
3053                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3054                               sb->dma_handle);
3055                 kfree(sb);
3056                 phba->total_scsi_bufs--;
3057         }
3058         spin_unlock(&phba->scsi_buf_list_get_lock);
3059
3060         /* Release all the lpfc_iocbq entries maintained by this host. */
3061         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3062                 list_del(&io->list);
3063                 kfree(io);
3064                 phba->total_iocbq_bufs--;
3065         }
3066
3067         spin_unlock_irq(&phba->hbalock);
3068 }
3069
3070 /**
3071  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3072  * @phba: pointer to lpfc hba data structure.
3073  *
3074  * This routine first calculates the sizes of the current els and allocated
3075  * scsi sgl lists, and then goes through all sgls to updates the physical
3076  * XRIs assigned due to port function reset. During port initialization, the
3077  * current els and allocated scsi sgl lists are 0s.
3078  *
3079  * Return codes
3080  *   0 - successful (for now, it always returns 0)
3081  **/
3082 int
3083 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3084 {
3085         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3086         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3087         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3088         LIST_HEAD(els_sgl_list);
3089         LIST_HEAD(scsi_sgl_list);
3090         int rc;
3091         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3092
3093         /*
3094          * update on pci function's els xri-sgl list
3095          */
3096         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3097         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3098                 /* els xri-sgl expanded */
3099                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3100                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3101                                 "3157 ELS xri-sgl count increased from "
3102                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3103                                 els_xri_cnt);
3104                 /* allocate the additional els sgls */
3105                 for (i = 0; i < xri_cnt; i++) {
3106                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3107                                              GFP_KERNEL);
3108                         if (sglq_entry == NULL) {
3109                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3110                                                 "2562 Failure to allocate an "
3111                                                 "ELS sgl entry:%d\n", i);
3112                                 rc = -ENOMEM;
3113                                 goto out_free_mem;
3114                         }
3115                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3116                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3117                                                            &sglq_entry->phys);
3118                         if (sglq_entry->virt == NULL) {
3119                                 kfree(sglq_entry);
3120                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3121                                                 "2563 Failure to allocate an "
3122                                                 "ELS mbuf:%d\n", i);
3123                                 rc = -ENOMEM;
3124                                 goto out_free_mem;
3125                         }
3126                         sglq_entry->sgl = sglq_entry->virt;
3127                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3128                         sglq_entry->state = SGL_FREED;
3129                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3130                 }
3131                 spin_lock_irq(&phba->hbalock);
3132                 spin_lock(&pring->ring_lock);
3133                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3134                 spin_unlock(&pring->ring_lock);
3135                 spin_unlock_irq(&phba->hbalock);
3136         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3137                 /* els xri-sgl shrinked */
3138                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3139                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3140                                 "3158 ELS xri-sgl count decreased from "
3141                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3142                                 els_xri_cnt);
3143                 spin_lock_irq(&phba->hbalock);
3144                 spin_lock(&pring->ring_lock);
3145                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3146                 spin_unlock(&pring->ring_lock);
3147                 spin_unlock_irq(&phba->hbalock);
3148                 /* release extra els sgls from list */
3149                 for (i = 0; i < xri_cnt; i++) {
3150                         list_remove_head(&els_sgl_list,
3151                                          sglq_entry, struct lpfc_sglq, list);
3152                         if (sglq_entry) {
3153                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3154                                                sglq_entry->phys);
3155                                 kfree(sglq_entry);
3156                         }
3157                 }
3158                 spin_lock_irq(&phba->hbalock);
3159                 spin_lock(&pring->ring_lock);
3160                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3161                 spin_unlock(&pring->ring_lock);
3162                 spin_unlock_irq(&phba->hbalock);
3163         } else
3164                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3165                                 "3163 ELS xri-sgl count unchanged: %d\n",
3166                                 els_xri_cnt);
3167         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3168
3169         /* update xris to els sgls on the list */
3170         sglq_entry = NULL;
3171         sglq_entry_next = NULL;
3172         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3173                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3174                 lxri = lpfc_sli4_next_xritag(phba);
3175                 if (lxri == NO_XRI) {
3176                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3177                                         "2400 Failed to allocate xri for "
3178                                         "ELS sgl\n");
3179                         rc = -ENOMEM;
3180                         goto out_free_mem;
3181                 }
3182                 sglq_entry->sli4_lxritag = lxri;
3183                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3184         }
3185
3186         /*
3187          * update on pci function's allocated scsi xri-sgl list
3188          */
3189         phba->total_scsi_bufs = 0;
3190
3191         /* maximum number of xris available for scsi buffers */
3192         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3193                                       els_xri_cnt;
3194
3195         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3196                         "2401 Current allocated SCSI xri-sgl count:%d, "
3197                         "maximum  SCSI xri count:%d\n",
3198                         phba->sli4_hba.scsi_xri_cnt,
3199                         phba->sli4_hba.scsi_xri_max);
3200
3201         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3202         spin_lock(&phba->scsi_buf_list_put_lock);
3203         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3204         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3205         spin_unlock(&phba->scsi_buf_list_put_lock);
3206         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3207
3208         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3209                 /* max scsi xri shrinked below the allocated scsi buffers */
3210                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3211                                         phba->sli4_hba.scsi_xri_max;
3212                 /* release the extra allocated scsi buffers */
3213                 for (i = 0; i < scsi_xri_cnt; i++) {
3214                         list_remove_head(&scsi_sgl_list, psb,
3215                                          struct lpfc_scsi_buf, list);
3216                         if (psb) {
3217                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3218                                               psb->data, psb->dma_handle);
3219                                 kfree(psb);
3220                         }
3221                 }
3222                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3224                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3225         }
3226
3227         /* update xris associated to remaining allocated scsi buffers */
3228         psb = NULL;
3229         psb_next = NULL;
3230         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3231                 lxri = lpfc_sli4_next_xritag(phba);
3232                 if (lxri == NO_XRI) {
3233                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3234                                         "2560 Failed to allocate xri for "
3235                                         "scsi buffer\n");
3236                         rc = -ENOMEM;
3237                         goto out_free_mem;
3238                 }
3239                 psb->cur_iocbq.sli4_lxritag = lxri;
3240                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3241         }
3242         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3243         spin_lock(&phba->scsi_buf_list_put_lock);
3244         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3245         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3246         spin_unlock(&phba->scsi_buf_list_put_lock);
3247         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3248
3249         return 0;
3250
3251 out_free_mem:
3252         lpfc_free_els_sgl_list(phba);
3253         lpfc_scsi_free(phba);
3254         return rc;
3255 }
3256
3257 /**
3258  * lpfc_create_port - Create an FC port
3259  * @phba: pointer to lpfc hba data structure.
3260  * @instance: a unique integer ID to this FC port.
3261  * @dev: pointer to the device data structure.
3262  *
3263  * This routine creates a FC port for the upper layer protocol. The FC port
3264  * can be created on top of either a physical port or a virtual port provided
3265  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3266  * and associates the FC port created before adding the shost into the SCSI
3267  * layer.
3268  *
3269  * Return codes
3270  *   @vport - pointer to the virtual N_Port data structure.
3271  *   NULL - port create failed.
3272  **/
3273 struct lpfc_vport *
3274 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3275 {
3276         struct lpfc_vport *vport;
3277         struct Scsi_Host  *shost;
3278         int error = 0;
3279
3280         if (dev != &phba->pcidev->dev) {
3281                 shost = scsi_host_alloc(&lpfc_vport_template,
3282                                         sizeof(struct lpfc_vport));
3283         } else {
3284                 if (phba->sli_rev == LPFC_SLI_REV4)
3285                         shost = scsi_host_alloc(&lpfc_template,
3286                                         sizeof(struct lpfc_vport));
3287                 else
3288                         shost = scsi_host_alloc(&lpfc_template_s3,
3289                                         sizeof(struct lpfc_vport));
3290         }
3291         if (!shost)
3292                 goto out;
3293
3294         vport = (struct lpfc_vport *) shost->hostdata;
3295         vport->phba = phba;
3296         vport->load_flag |= FC_LOADING;
3297         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3298         vport->fc_rscn_flush = 0;
3299
3300         lpfc_get_vport_cfgparam(vport);
3301         shost->unique_id = instance;
3302         shost->max_id = LPFC_MAX_TARGET;
3303         shost->max_lun = vport->cfg_max_luns;
3304         shost->this_id = -1;
3305         shost->max_cmd_len = 16;
3306         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3307         if (phba->sli_rev == LPFC_SLI_REV4) {
3308                 shost->dma_boundary =
3309                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3310                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3311         }
3312
3313         /*
3314          * Set initial can_queue value since 0 is no longer supported and
3315          * scsi_add_host will fail. This will be adjusted later based on the
3316          * max xri value determined in hba setup.
3317          */
3318         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3319         if (dev != &phba->pcidev->dev) {
3320                 shost->transportt = lpfc_vport_transport_template;
3321                 vport->port_type = LPFC_NPIV_PORT;
3322         } else {
3323                 shost->transportt = lpfc_transport_template;
3324                 vport->port_type = LPFC_PHYSICAL_PORT;
3325         }
3326
3327         /* Initialize all internally managed lists. */
3328         INIT_LIST_HEAD(&vport->fc_nodes);
3329         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3330         spin_lock_init(&vport->work_port_lock);
3331
3332         init_timer(&vport->fc_disctmo);
3333         vport->fc_disctmo.function = lpfc_disc_timeout;
3334         vport->fc_disctmo.data = (unsigned long)vport;
3335
3336         init_timer(&vport->fc_fdmitmo);
3337         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3338         vport->fc_fdmitmo.data = (unsigned long)vport;
3339
3340         init_timer(&vport->els_tmofunc);
3341         vport->els_tmofunc.function = lpfc_els_timeout;
3342         vport->els_tmofunc.data = (unsigned long)vport;
3343
3344         init_timer(&vport->delayed_disc_tmo);
3345         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3346         vport->delayed_disc_tmo.data = (unsigned long)vport;
3347
3348         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3349         if (error)
3350                 goto out_put_shost;
3351
3352         spin_lock_irq(&phba->hbalock);
3353         list_add_tail(&vport->listentry, &phba->port_list);
3354         spin_unlock_irq(&phba->hbalock);
3355         return vport;
3356
3357 out_put_shost:
3358         scsi_host_put(shost);
3359 out:
3360         return NULL;
3361 }
3362
3363 /**
3364  * destroy_port -  destroy an FC port
3365  * @vport: pointer to an lpfc virtual N_Port data structure.
3366  *
3367  * This routine destroys a FC port from the upper layer protocol. All the
3368  * resources associated with the port are released.
3369  **/
3370 void
3371 destroy_port(struct lpfc_vport *vport)
3372 {
3373         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3374         struct lpfc_hba  *phba = vport->phba;
3375
3376         lpfc_debugfs_terminate(vport);
3377         fc_remove_host(shost);
3378         scsi_remove_host(shost);
3379
3380         spin_lock_irq(&phba->hbalock);
3381         list_del_init(&vport->listentry);
3382         spin_unlock_irq(&phba->hbalock);
3383
3384         lpfc_cleanup(vport);
3385         return;
3386 }
3387
3388 /**
3389  * lpfc_get_instance - Get a unique integer ID
3390  *
3391  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3392  * uses the kernel idr facility to perform the task.
3393  *
3394  * Return codes:
3395  *   instance - a unique integer ID allocated as the new instance.
3396  *   -1 - lpfc get instance failed.
3397  **/
3398 int
3399 lpfc_get_instance(void)
3400 {
3401         int ret;
3402
3403         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3404         return ret < 0 ? -1 : ret;
3405 }
3406
3407 /**
3408  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3409  * @shost: pointer to SCSI host data structure.
3410  * @time: elapsed time of the scan in jiffies.
3411  *
3412  * This routine is called by the SCSI layer with a SCSI host to determine
3413  * whether the scan host is finished.
3414  *
3415  * Note: there is no scan_start function as adapter initialization will have
3416  * asynchronously kicked off the link initialization.
3417  *
3418  * Return codes
3419  *   0 - SCSI host scan is not over yet.
3420  *   1 - SCSI host scan is over.
3421  **/
3422 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3423 {
3424         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3425         struct lpfc_hba   *phba = vport->phba;
3426         int stat = 0;
3427
3428         spin_lock_irq(shost->host_lock);
3429
3430         if (vport->load_flag & FC_UNLOADING) {
3431                 stat = 1;
3432                 goto finished;
3433         }
3434         if (time >= msecs_to_jiffies(30 * 1000)) {
3435                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3436                                 "0461 Scanning longer than 30 "
3437                                 "seconds.  Continuing initialization\n");
3438                 stat = 1;
3439                 goto finished;
3440         }
3441         if (time >= msecs_to_jiffies(15 * 1000) &&
3442             phba->link_state <= LPFC_LINK_DOWN) {
3443                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3444                                 "0465 Link down longer than 15 "
3445                                 "seconds.  Continuing initialization\n");
3446                 stat = 1;
3447                 goto finished;
3448         }
3449
3450         if (vport->port_state != LPFC_VPORT_READY)
3451                 goto finished;
3452         if (vport->num_disc_nodes || vport->fc_prli_sent)
3453                 goto finished;
3454         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3455                 goto finished;
3456         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3457                 goto finished;
3458
3459         stat = 1;
3460
3461 finished:
3462         spin_unlock_irq(shost->host_lock);
3463         return stat;
3464 }
3465
3466 /**
3467  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3468  * @shost: pointer to SCSI host data structure.
3469  *
3470  * This routine initializes a given SCSI host attributes on a FC port. The
3471  * SCSI host can be either on top of a physical port or a virtual port.
3472  **/
3473 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3474 {
3475         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3476         struct lpfc_hba   *phba = vport->phba;
3477         /*
3478          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3479          */
3480
3481         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3482         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3483         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3484
3485         memset(fc_host_supported_fc4s(shost), 0,
3486                sizeof(fc_host_supported_fc4s(shost)));
3487         fc_host_supported_fc4s(shost)[2] = 1;
3488         fc_host_supported_fc4s(shost)[7] = 1;
3489
3490         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3491                                  sizeof fc_host_symbolic_name(shost));
3492
3493         fc_host_supported_speeds(shost) = 0;
3494         if (phba->lmt & LMT_16Gb)
3495                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3496         if (phba->lmt & LMT_10Gb)
3497                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3498         if (phba->lmt & LMT_8Gb)
3499                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3500         if (phba->lmt & LMT_4Gb)
3501                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3502         if (phba->lmt & LMT_2Gb)
3503                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3504         if (phba->lmt & LMT_1Gb)
3505                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3506
3507         fc_host_maxframe_size(shost) =
3508                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3509                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3510
3511         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3512
3513         /* This value is also unchanging */
3514         memset(fc_host_active_fc4s(shost), 0,
3515                sizeof(fc_host_active_fc4s(shost)));
3516         fc_host_active_fc4s(shost)[2] = 1;
3517         fc_host_active_fc4s(shost)[7] = 1;
3518
3519         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3520         spin_lock_irq(shost->host_lock);
3521         vport->load_flag &= ~FC_LOADING;
3522         spin_unlock_irq(shost->host_lock);
3523 }
3524
3525 /**
3526  * lpfc_stop_port_s3 - Stop SLI3 device port
3527  * @phba: pointer to lpfc hba data structure.
3528  *
3529  * This routine is invoked to stop an SLI3 device port, it stops the device
3530  * from generating interrupts and stops the device driver's timers for the
3531  * device.
3532  **/
3533 static void
3534 lpfc_stop_port_s3(struct lpfc_hba *phba)
3535 {
3536         /* Clear all interrupt enable conditions */
3537         writel(0, phba->HCregaddr);
3538         readl(phba->HCregaddr); /* flush */
3539         /* Clear all pending interrupts */
3540         writel(0xffffffff, phba->HAregaddr);
3541         readl(phba->HAregaddr); /* flush */
3542
3543         /* Reset some HBA SLI setup states */
3544         lpfc_stop_hba_timers(phba);
3545         phba->pport->work_port_events = 0;
3546 }
3547
3548 /**
3549  * lpfc_stop_port_s4 - Stop SLI4 device port
3550  * @phba: pointer to lpfc hba data structure.
3551  *
3552  * This routine is invoked to stop an SLI4 device port, it stops the device
3553  * from generating interrupts and stops the device driver's timers for the
3554  * device.
3555  **/
3556 static void
3557 lpfc_stop_port_s4(struct lpfc_hba *phba)
3558 {
3559         /* Reset some HBA SLI4 setup states */
3560         lpfc_stop_hba_timers(phba);
3561         phba->pport->work_port_events = 0;
3562         phba->sli4_hba.intr_enable = 0;
3563 }
3564
3565 /**
3566  * lpfc_stop_port - Wrapper function for stopping hba port
3567  * @phba: Pointer to HBA context object.
3568  *
3569  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3570  * the API jump table function pointer from the lpfc_hba struct.
3571  **/
3572 void
3573 lpfc_stop_port(struct lpfc_hba *phba)
3574 {
3575         phba->lpfc_stop_port(phba);
3576 }
3577
3578 /**
3579  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3580  * @phba: Pointer to hba for which this call is being executed.
3581  *
3582  * This routine starts the timer waiting for the FCF rediscovery to complete.
3583  **/
3584 void
3585 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3586 {
3587         unsigned long fcf_redisc_wait_tmo =
3588                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3589         /* Start fcf rediscovery wait period timer */
3590         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3591         spin_lock_irq(&phba->hbalock);
3592         /* Allow action to new fcf asynchronous event */
3593         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3594         /* Mark the FCF rediscovery pending state */
3595         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3596         spin_unlock_irq(&phba->hbalock);
3597 }
3598
3599 /**
3600  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3601  * @ptr: Map to lpfc_hba data structure pointer.
3602  *
3603  * This routine is invoked when waiting for FCF table rediscover has been
3604  * timed out. If new FCF record(s) has (have) been discovered during the
3605  * wait period, a new FCF event shall be added to the FCOE async event
3606  * list, and then worker thread shall be waked up for processing from the
3607  * worker thread context.
3608  **/
3609 static void
3610 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3611 {
3612         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3613
3614         /* Don't send FCF rediscovery event if timer cancelled */
3615         spin_lock_irq(&phba->hbalock);
3616         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3617                 spin_unlock_irq(&phba->hbalock);
3618                 return;
3619         }
3620         /* Clear FCF rediscovery timer pending flag */
3621         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3622         /* FCF rediscovery event to worker thread */
3623         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3624         spin_unlock_irq(&phba->hbalock);
3625         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3626                         "2776 FCF rediscover quiescent timer expired\n");
3627         /* wake up worker thread */
3628         lpfc_worker_wake_up(phba);
3629 }
3630
3631 /**
3632  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3633  * @phba: pointer to lpfc hba data structure.
3634  * @acqe_link: pointer to the async link completion queue entry.
3635  *
3636  * This routine is to parse the SLI4 link-attention link fault code and
3637  * translate it into the base driver's read link attention mailbox command
3638  * status.
3639  *
3640  * Return: Link-attention status in terms of base driver's coding.
3641  **/
3642 static uint16_t
3643 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3644                            struct lpfc_acqe_link *acqe_link)
3645 {
3646         uint16_t latt_fault;
3647
3648         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3649         case LPFC_ASYNC_LINK_FAULT_NONE:
3650         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3651         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3652                 latt_fault = 0;
3653                 break;
3654         default:
3655                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3656                                 "0398 Invalid link fault code: x%x\n",
3657                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3658                 latt_fault = MBXERR_ERROR;
3659                 break;
3660         }
3661         return latt_fault;
3662 }
3663
3664 /**
3665  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3666  * @phba: pointer to lpfc hba data structure.
3667  * @acqe_link: pointer to the async link completion queue entry.
3668  *
3669  * This routine is to parse the SLI4 link attention type and translate it
3670  * into the base driver's link attention type coding.
3671  *
3672  * Return: Link attention type in terms of base driver's coding.
3673  **/
3674 static uint8_t
3675 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3676                           struct lpfc_acqe_link *acqe_link)
3677 {
3678         uint8_t att_type;
3679
3680         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3681         case LPFC_ASYNC_LINK_STATUS_DOWN:
3682         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3683                 att_type = LPFC_ATT_LINK_DOWN;
3684                 break;
3685         case LPFC_ASYNC_LINK_STATUS_UP:
3686                 /* Ignore physical link up events - wait for logical link up */
3687                 att_type = LPFC_ATT_RESERVED;
3688                 break;
3689         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3690                 att_type = LPFC_ATT_LINK_UP;
3691                 break;
3692         default:
3693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3694                                 "0399 Invalid link attention type: x%x\n",
3695                                 bf_get(lpfc_acqe_link_status, acqe_link));
3696                 att_type = LPFC_ATT_RESERVED;
3697                 break;
3698         }
3699         return att_type;
3700 }
3701
3702 /**
3703  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3704  * @phba: pointer to lpfc hba data structure.
3705  * @acqe_link: pointer to the async link completion queue entry.
3706  *
3707  * This routine is to parse the SLI4 link-attention link speed and translate
3708  * it into the base driver's link-attention link speed coding.
3709  *
3710  * Return: Link-attention link speed in terms of base driver's coding.
3711  **/
3712 static uint8_t
3713 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3714                                 struct lpfc_acqe_link *acqe_link)
3715 {
3716         uint8_t link_speed;
3717
3718         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3719         case LPFC_ASYNC_LINK_SPEED_ZERO:
3720         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3721         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3722                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3723                 break;
3724         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3725                 link_speed = LPFC_LINK_SPEED_1GHZ;
3726                 break;
3727         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3728                 link_speed = LPFC_LINK_SPEED_10GHZ;
3729                 break;
3730         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3731         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3732         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3733                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3734                 break;
3735         default:
3736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3737                                 "0483 Invalid link-attention link speed: x%x\n",
3738                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3739                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3740                 break;
3741         }
3742         return link_speed;
3743 }
3744
3745 /**
3746  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3747  * @phba: pointer to lpfc hba data structure.
3748  *
3749  * This routine is to get an SLI3 FC port's link speed in Mbps.
3750  *
3751  * Return: link speed in terms of Mbps.
3752  **/
3753 uint32_t
3754 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3755 {
3756         uint32_t link_speed;
3757
3758         if (!lpfc_is_link_up(phba))
3759                 return 0;
3760
3761         switch (phba->fc_linkspeed) {
3762         case LPFC_LINK_SPEED_1GHZ:
3763                 link_speed = 1000;
3764                 break;
3765         case LPFC_LINK_SPEED_2GHZ:
3766                 link_speed = 2000;
3767                 break;
3768         case LPFC_LINK_SPEED_4GHZ:
3769                 link_speed = 4000;
3770                 break;
3771         case LPFC_LINK_SPEED_8GHZ:
3772                 link_speed = 8000;
3773                 break;
3774         case LPFC_LINK_SPEED_10GHZ:
3775                 link_speed = 10000;
3776                 break;
3777         case LPFC_LINK_SPEED_16GHZ:
3778                 link_speed = 16000;
3779                 break;
3780         default:
3781                 link_speed = 0;
3782         }
3783         return link_speed;
3784 }
3785
3786 /**
3787  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3788  * @phba: pointer to lpfc hba data structure.
3789  * @evt_code: asynchronous event code.
3790  * @speed_code: asynchronous event link speed code.
3791  *
3792  * This routine is to parse the giving SLI4 async event link speed code into
3793  * value of Mbps for the link speed.
3794  *
3795  * Return: link speed in terms of Mbps.
3796  **/
3797 static uint32_t
3798 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3799                            uint8_t speed_code)
3800 {
3801         uint32_t port_speed;
3802
3803         switch (evt_code) {
3804         case LPFC_TRAILER_CODE_LINK:
3805                 switch (speed_code) {
3806                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3807                         port_speed = 0;
3808                         break;
3809                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3810                         port_speed = 10;
3811                         break;
3812                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3813                         port_speed = 100;
3814                         break;
3815                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3816                         port_speed = 1000;
3817                         break;
3818                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3819                         port_speed = 10000;
3820                         break;
3821                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3822                         port_speed = 20000;
3823                         break;
3824                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3825                         port_speed = 25000;
3826                         break;
3827                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3828                         port_speed = 40000;
3829                         break;
3830                 default:
3831                         port_speed = 0;
3832                 }
3833                 break;
3834         case LPFC_TRAILER_CODE_FC:
3835                 switch (speed_code) {
3836                 case LPFC_FC_LA_SPEED_UNKNOWN:
3837                         port_speed = 0;
3838                         break;
3839                 case LPFC_FC_LA_SPEED_1G:
3840                         port_speed = 1000;
3841                         break;
3842                 case LPFC_FC_LA_SPEED_2G:
3843                         port_speed = 2000;
3844                         break;
3845                 case LPFC_FC_LA_SPEED_4G:
3846                         port_speed = 4000;
3847                         break;
3848                 case LPFC_FC_LA_SPEED_8G:
3849                         port_speed = 8000;
3850                         break;
3851                 case LPFC_FC_LA_SPEED_10G:
3852                         port_speed = 10000;
3853                         break;
3854                 case LPFC_FC_LA_SPEED_16G:
3855                         port_speed = 16000;
3856                         break;
3857                 default:
3858                         port_speed = 0;
3859                 }
3860                 break;
3861         default:
3862                 port_speed = 0;
3863         }
3864         return port_speed;
3865 }
3866
3867 /**
3868  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3869  * @phba: pointer to lpfc hba data structure.
3870  * @acqe_link: pointer to the async link completion queue entry.
3871  *
3872  * This routine is to handle the SLI4 asynchronous FCoE link event.
3873  **/
3874 static void
3875 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3876                          struct lpfc_acqe_link *acqe_link)
3877 {
3878         struct lpfc_dmabuf *mp;
3879         LPFC_MBOXQ_t *pmb;
3880         MAILBOX_t *mb;
3881         struct lpfc_mbx_read_top *la;
3882         uint8_t att_type;
3883         int rc;
3884
3885         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3886         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3887                 return;
3888         phba->fcoe_eventtag = acqe_link->event_tag;
3889         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3890         if (!pmb) {
3891                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3892                                 "0395 The mboxq allocation failed\n");
3893                 return;
3894         }
3895         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3896         if (!mp) {
3897                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3898                                 "0396 The lpfc_dmabuf allocation failed\n");
3899                 goto out_free_pmb;
3900         }
3901         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3902         if (!mp->virt) {
3903                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3904                                 "0397 The mbuf allocation failed\n");
3905                 goto out_free_dmabuf;
3906         }
3907
3908         /* Cleanup any outstanding ELS commands */
3909         lpfc_els_flush_all_cmd(phba);
3910
3911         /* Block ELS IOCBs until we have done process link event */
3912         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3913
3914         /* Update link event statistics */
3915         phba->sli.slistat.link_event++;
3916
3917         /* Create lpfc_handle_latt mailbox command from link ACQE */
3918         lpfc_read_topology(phba, pmb, mp);
3919         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3920         pmb->vport = phba->pport;
3921
3922         /* Keep the link status for extra SLI4 state machine reference */
3923         phba->sli4_hba.link_state.speed =
3924                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3925                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3926         phba->sli4_hba.link_state.duplex =
3927                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3928         phba->sli4_hba.link_state.status =
3929                                 bf_get(lpfc_acqe_link_status, acqe_link);
3930         phba->sli4_hba.link_state.type =
3931                                 bf_get(lpfc_acqe_link_type, acqe_link);
3932         phba->sli4_hba.link_state.number =
3933                                 bf_get(lpfc_acqe_link_number, acqe_link);
3934         phba->sli4_hba.link_state.fault =
3935                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3936         phba->sli4_hba.link_state.logical_speed =
3937                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3938
3939         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3940                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3941                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3942                         "Logical speed:%dMbps Fault:%d\n",
3943                         phba->sli4_hba.link_state.speed,
3944                         phba->sli4_hba.link_state.topology,
3945                         phba->sli4_hba.link_state.status,
3946                         phba->sli4_hba.link_state.type,
3947                         phba->sli4_hba.link_state.number,
3948                         phba->sli4_hba.link_state.logical_speed,
3949                         phba->sli4_hba.link_state.fault);
3950         /*
3951          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3952          * topology info. Note: Optional for non FC-AL ports.
3953          */
3954         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3955                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3956                 if (rc == MBX_NOT_FINISHED)
3957                         goto out_free_dmabuf;
3958                 return;
3959         }
3960         /*
3961          * For FCoE Mode: fill in all the topology information we need and call
3962          * the READ_TOPOLOGY completion routine to continue without actually
3963          * sending the READ_TOPOLOGY mailbox command to the port.
3964          */
3965         /* Parse and translate status field */
3966         mb = &pmb->u.mb;
3967         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3968
3969         /* Parse and translate link attention fields */
3970         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3971         la->eventTag = acqe_link->event_tag;
3972         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3973         bf_set(lpfc_mbx_read_top_link_spd, la,
3974                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3975
3976         /* Fake the the following irrelvant fields */
3977         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3978         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3979         bf_set(lpfc_mbx_read_top_il, la, 0);
3980         bf_set(lpfc_mbx_read_top_pb, la, 0);
3981         bf_set(lpfc_mbx_read_top_fa, la, 0);
3982         bf_set(lpfc_mbx_read_top_mm, la, 0);
3983
3984         /* Invoke the lpfc_handle_latt mailbox command callback function */
3985         lpfc_mbx_cmpl_read_topology(phba, pmb);
3986
3987         return;
3988
3989 out_free_dmabuf:
3990         kfree(mp);
3991 out_free_pmb:
3992         mempool_free(pmb, phba->mbox_mem_pool);
3993 }
3994
3995 /**
3996  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3997  * @phba: pointer to lpfc hba data structure.
3998  * @acqe_fc: pointer to the async fc completion queue entry.
3999  *
4000  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4001  * that the event was received and then issue a read_topology mailbox command so
4002  * that the rest of the driver will treat it the same as SLI3.
4003  **/
4004 static void
4005 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4006 {
4007         struct lpfc_dmabuf *mp;
4008         LPFC_MBOXQ_t *pmb;
4009         int rc;
4010
4011         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4012             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4013                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4014                                 "2895 Non FC link Event detected.(%d)\n",
4015                                 bf_get(lpfc_trailer_type, acqe_fc));
4016                 return;
4017         }
4018         /* Keep the link status for extra SLI4 state machine reference */
4019         phba->sli4_hba.link_state.speed =
4020                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4021                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4022         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4023         phba->sli4_hba.link_state.topology =
4024                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4025         phba->sli4_hba.link_state.status =
4026                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4027         phba->sli4_hba.link_state.type =
4028                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4029         phba->sli4_hba.link_state.number =
4030                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4031         phba->sli4_hba.link_state.fault =
4032                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4033         phba->sli4_hba.link_state.logical_speed =
4034                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4035         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4036                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4037                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4038                         "%dMbps Fault:%d\n",
4039                         phba->sli4_hba.link_state.speed,
4040                         phba->sli4_hba.link_state.topology,
4041                         phba->sli4_hba.link_state.status,
4042                         phba->sli4_hba.link_state.type,
4043                         phba->sli4_hba.link_state.number,
4044                         phba->sli4_hba.link_state.logical_speed,
4045                         phba->sli4_hba.link_state.fault);
4046         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4047         if (!pmb) {
4048                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049                                 "2897 The mboxq allocation failed\n");
4050                 return;
4051         }
4052         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4053         if (!mp) {
4054                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4055                                 "2898 The lpfc_dmabuf allocation failed\n");
4056                 goto out_free_pmb;
4057         }
4058         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4059         if (!mp->virt) {
4060                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4061                                 "2899 The mbuf allocation failed\n");
4062                 goto out_free_dmabuf;
4063         }
4064
4065         /* Cleanup any outstanding ELS commands */
4066         lpfc_els_flush_all_cmd(phba);
4067
4068         /* Block ELS IOCBs until we have done process link event */
4069         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4070
4071         /* Update link event statistics */
4072         phba->sli.slistat.link_event++;
4073
4074         /* Create lpfc_handle_latt mailbox command from link ACQE */
4075         lpfc_read_topology(phba, pmb, mp);
4076         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4077         pmb->vport = phba->pport;
4078
4079         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4080         if (rc == MBX_NOT_FINISHED)
4081                 goto out_free_dmabuf;
4082         return;
4083
4084 out_free_dmabuf:
4085         kfree(mp);
4086 out_free_pmb:
4087         mempool_free(pmb, phba->mbox_mem_pool);
4088 }
4089
4090 /**
4091  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4092  * @phba: pointer to lpfc hba data structure.
4093  * @acqe_fc: pointer to the async SLI completion queue entry.
4094  *
4095  * This routine is to handle the SLI4 asynchronous SLI events.
4096  **/
4097 static void
4098 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4099 {
4100         char port_name;
4101         char message[128];
4102         uint8_t status;
4103         uint8_t evt_type;
4104         struct temp_event temp_event_data;
4105         struct lpfc_acqe_misconfigured_event *misconfigured;
4106         struct Scsi_Host  *shost;
4107
4108         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4109
4110         /* Special case Lancer */
4111         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4112                  LPFC_SLI_INTF_IF_TYPE_2) {
4113                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4114                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4115                                 "x%08x SLI Event Type:%d\n",
4116                                 acqe_sli->event_data1, acqe_sli->event_data2,
4117                                 evt_type);
4118                 return;
4119         }
4120
4121         port_name = phba->Port[0];
4122         if (port_name == 0x00)
4123                 port_name = '?'; /* get port name is empty */
4124
4125         switch (evt_type) {
4126         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4127                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4128                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4129                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4130
4131                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4132                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4133                                 acqe_sli->event_data1, port_name);
4134
4135                 shost = lpfc_shost_from_vport(phba->pport);
4136                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4137                                           sizeof(temp_event_data),
4138                                           (char *)&temp_event_data,
4139                                           SCSI_NL_VID_TYPE_PCI
4140                                           | PCI_VENDOR_ID_EMULEX);
4141                 break;
4142         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4143                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4144                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4145                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4146
4147                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4148                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4149                                 acqe_sli->event_data1, port_name);
4150
4151                 shost = lpfc_shost_from_vport(phba->pport);
4152                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4153                                           sizeof(temp_event_data),
4154                                           (char *)&temp_event_data,
4155                                           SCSI_NL_VID_TYPE_PCI
4156                                           | PCI_VENDOR_ID_EMULEX);
4157                 break;
4158         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4159                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4160                                         &acqe_sli->event_data1;
4161
4162                 /* fetch the status for this port */
4163                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4164                 case LPFC_LINK_NUMBER_0:
4165                         status = bf_get(lpfc_sli_misconfigured_port0,
4166                                         &misconfigured->theEvent);
4167                         break;
4168                 case LPFC_LINK_NUMBER_1:
4169                         status = bf_get(lpfc_sli_misconfigured_port1,
4170                                         &misconfigured->theEvent);
4171                         break;
4172                 case LPFC_LINK_NUMBER_2:
4173                         status = bf_get(lpfc_sli_misconfigured_port2,
4174                                         &misconfigured->theEvent);
4175                         break;
4176                 case LPFC_LINK_NUMBER_3:
4177                         status = bf_get(lpfc_sli_misconfigured_port3,
4178                                         &misconfigured->theEvent);
4179                         break;
4180                 default:
4181                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4182                         break;
4183                 }
4184
4185                 switch (status) {
4186                 case LPFC_SLI_EVENT_STATUS_VALID:
4187                         return; /* no message if the sfp is okay */
4188                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4189                         sprintf(message, "Optics faulted/incorrectly "
4190                                 "installed/not installed - Reseat optics, "
4191                                 "if issue not resolved, replace.");
4192                         break;
4193                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4194                         sprintf(message,
4195                                 "Optics of two types installed - Remove one "
4196                                 "optic or install matching pair of optics.");
4197                         break;
4198                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4199                         sprintf(message, "Incompatible optics - Replace with "
4200                                 "compatible optics for card to function.");
4201                         break;
4202                 default:
4203                         /* firmware is reporting a status we don't know about */
4204                         sprintf(message, "Unknown event status x%02x", status);
4205                         break;
4206                 }
4207
4208                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4209                                 "3176 Misconfigured Physical Port - "
4210                                 "Port Name %c %s\n", port_name, message);
4211                 break;
4212         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4213                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4214                                 "3192 Remote DPort Test Initiated - "
4215                                 "Event Data1:x%08x Event Data2: x%08x\n",
4216                                 acqe_sli->event_data1, acqe_sli->event_data2);
4217                 break;
4218         default:
4219                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4220                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4221                                 "x%08x SLI Event Type:%d\n",
4222                                 acqe_sli->event_data1, acqe_sli->event_data2,
4223                                 evt_type);
4224                 break;
4225         }
4226 }
4227
4228 /**
4229  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4230  * @vport: pointer to vport data structure.
4231  *
4232  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4233  * response to a CVL event.
4234  *
4235  * Return the pointer to the ndlp with the vport if successful, otherwise
4236  * return NULL.
4237  **/
4238 static struct lpfc_nodelist *
4239 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4240 {
4241         struct lpfc_nodelist *ndlp;
4242         struct Scsi_Host *shost;
4243         struct lpfc_hba *phba;
4244
4245         if (!vport)
4246                 return NULL;
4247         phba = vport->phba;
4248         if (!phba)
4249                 return NULL;
4250         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4251         if (!ndlp) {
4252                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4253                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4254                 if (!ndlp)
4255                         return 0;
4256                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4257                 /* Set the node type */
4258                 ndlp->nlp_type |= NLP_FABRIC;
4259                 /* Put ndlp onto node list */
4260                 lpfc_enqueue_node(vport, ndlp);
4261         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4262                 /* re-setup ndlp without removing from node list */
4263                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4264                 if (!ndlp)
4265                         return 0;
4266         }
4267         if ((phba->pport->port_state < LPFC_FLOGI) &&
4268                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4269                 return NULL;
4270         /* If virtual link is not yet instantiated ignore CVL */
4271         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4272                 && (vport->port_state != LPFC_VPORT_FAILED))
4273                 return NULL;
4274         shost = lpfc_shost_from_vport(vport);
4275         if (!shost)
4276                 return NULL;
4277         lpfc_linkdown_port(vport);
4278         lpfc_cleanup_pending_mbox(vport);
4279         spin_lock_irq(shost->host_lock);
4280         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4281         spin_unlock_irq(shost->host_lock);
4282
4283         return ndlp;
4284 }
4285
4286 /**
4287  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4288  * @vport: pointer to lpfc hba data structure.
4289  *
4290  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4291  * response to a FCF dead event.
4292  **/
4293 static void
4294 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4295 {
4296         struct lpfc_vport **vports;
4297         int i;
4298
4299         vports = lpfc_create_vport_work_array(phba);
4300         if (vports)
4301                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4302                         lpfc_sli4_perform_vport_cvl(vports[i]);
4303         lpfc_destroy_vport_work_array(phba, vports);
4304 }
4305
4306 /**
4307  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4308  * @phba: pointer to lpfc hba data structure.
4309  * @acqe_link: pointer to the async fcoe completion queue entry.
4310  *
4311  * This routine is to handle the SLI4 asynchronous fcoe event.
4312  **/
4313 static void
4314 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4315                         struct lpfc_acqe_fip *acqe_fip)
4316 {
4317         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4318         int rc;
4319         struct lpfc_vport *vport;
4320         struct lpfc_nodelist *ndlp;
4321         struct Scsi_Host  *shost;
4322         int active_vlink_present;
4323         struct lpfc_vport **vports;
4324         int i;
4325
4326         phba->fc_eventTag = acqe_fip->event_tag;
4327         phba->fcoe_eventtag = acqe_fip->event_tag;
4328         switch (event_type) {
4329         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4330         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4331                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4332                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4333                                         LOG_DISCOVERY,
4334                                         "2546 New FCF event, evt_tag:x%x, "
4335                                         "index:x%x\n",
4336                                         acqe_fip->event_tag,
4337                                         acqe_fip->index);
4338                 else
4339                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4340                                         LOG_DISCOVERY,
4341                                         "2788 FCF param modified event, "
4342                                         "evt_tag:x%x, index:x%x\n",
4343                                         acqe_fip->event_tag,
4344                                         acqe_fip->index);
4345                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4346                         /*
4347                          * During period of FCF discovery, read the FCF
4348                          * table record indexed by the event to update
4349                          * FCF roundrobin failover eligible FCF bmask.
4350                          */
4351                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4352                                         LOG_DISCOVERY,
4353                                         "2779 Read FCF (x%x) for updating "
4354                                         "roundrobin FCF failover bmask\n",
4355                                         acqe_fip->index);
4356                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4357                 }
4358
4359                 /* If the FCF discovery is in progress, do nothing. */
4360                 spin_lock_irq(&phba->hbalock);
4361                 if (phba->hba_flag & FCF_TS_INPROG) {
4362                         spin_unlock_irq(&phba->hbalock);
4363                         break;
4364                 }
4365                 /* If fast FCF failover rescan event is pending, do nothing */
4366                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4367                         spin_unlock_irq(&phba->hbalock);
4368                         break;
4369                 }
4370
4371                 /* If the FCF has been in discovered state, do nothing. */
4372                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4373                         spin_unlock_irq(&phba->hbalock);
4374                         break;
4375                 }
4376                 spin_unlock_irq(&phba->hbalock);
4377
4378                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4379                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4380                                 "2770 Start FCF table scan per async FCF "
4381                                 "event, evt_tag:x%x, index:x%x\n",
4382                                 acqe_fip->event_tag, acqe_fip->index);
4383                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4384                                                      LPFC_FCOE_FCF_GET_FIRST);
4385                 if (rc)
4386                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4387                                         "2547 Issue FCF scan read FCF mailbox "
4388                                         "command failed (x%x)\n", rc);
4389                 break;
4390
4391         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4392                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4393                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4394                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4395                         acqe_fip->event_tag);
4396                 break;
4397
4398         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4399                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4400                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4401                         "2549 FCF (x%x) disconnected from network, "
4402                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4403                 /*
4404                  * If we are in the middle of FCF failover process, clear
4405                  * the corresponding FCF bit in the roundrobin bitmap.
4406                  */
4407                 spin_lock_irq(&phba->hbalock);
4408                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4409                         spin_unlock_irq(&phba->hbalock);
4410                         /* Update FLOGI FCF failover eligible FCF bmask */
4411                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4412                         break;
4413                 }
4414                 spin_unlock_irq(&phba->hbalock);
4415
4416                 /* If the event is not for currently used fcf do nothing */
4417                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4418                         break;
4419
4420                 /*
4421                  * Otherwise, request the port to rediscover the entire FCF
4422                  * table for a fast recovery from case that the current FCF
4423                  * is no longer valid as we are not in the middle of FCF
4424                  * failover process already.
4425                  */
4426                 spin_lock_irq(&phba->hbalock);
4427                 /* Mark the fast failover process in progress */
4428                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4429                 spin_unlock_irq(&phba->hbalock);
4430
4431                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4432                                 "2771 Start FCF fast failover process due to "
4433                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4434                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4435                 rc = lpfc_sli4_redisc_fcf_table(phba);
4436                 if (rc) {
4437                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4438                                         LOG_DISCOVERY,
4439                                         "2772 Issue FCF rediscover mabilbox "
4440                                         "command failed, fail through to FCF "
4441                                         "dead event\n");
4442                         spin_lock_irq(&phba->hbalock);
4443                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4444                         spin_unlock_irq(&phba->hbalock);
4445                         /*
4446                          * Last resort will fail over by treating this
4447                          * as a link down to FCF registration.
4448                          */
4449                         lpfc_sli4_fcf_dead_failthrough(phba);
4450                 } else {
4451                         /* Reset FCF roundrobin bmask for new discovery */
4452                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4453                         /*
4454                          * Handling fast FCF failover to a DEAD FCF event is
4455                          * considered equalivant to receiving CVL to all vports.
4456                          */
4457                         lpfc_sli4_perform_all_vport_cvl(phba);
4458                 }
4459                 break;
4460         case LPFC_FIP_EVENT_TYPE_CVL:
4461                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4462                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4463                         "2718 Clear Virtual Link Received for VPI 0x%x"
4464                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4465
4466                 vport = lpfc_find_vport_by_vpid(phba,
4467                                                 acqe_fip->index);
4468                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4469                 if (!ndlp)
4470                         break;
4471                 active_vlink_present = 0;
4472
4473                 vports = lpfc_create_vport_work_array(phba);
4474                 if (vports) {
4475                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4476                                         i++) {
4477                                 if ((!(vports[i]->fc_flag &
4478                                         FC_VPORT_CVL_RCVD)) &&
4479                                         (vports[i]->port_state > LPFC_FDISC)) {
4480                                         active_vlink_present = 1;
4481                                         break;
4482                                 }
4483                         }
4484                         lpfc_destroy_vport_work_array(phba, vports);
4485                 }
4486
4487                 /*
4488                  * Don't re-instantiate if vport is marked for deletion.
4489                  * If we are here first then vport_delete is going to wait
4490                  * for discovery to complete.
4491                  */
4492                 if (!(vport->load_flag & FC_UNLOADING) &&
4493                                         active_vlink_present) {
4494                         /*
4495                          * If there are other active VLinks present,
4496                          * re-instantiate the Vlink using FDISC.
4497                          */
4498                         mod_timer(&ndlp->nlp_delayfunc,
4499                                   jiffies + msecs_to_jiffies(1000));
4500                         shost = lpfc_shost_from_vport(vport);
4501                         spin_lock_irq(shost->host_lock);
4502                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4503                         spin_unlock_irq(shost->host_lock);
4504                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4505                         vport->port_state = LPFC_FDISC;
4506                 } else {
4507                         /*
4508                          * Otherwise, we request port to rediscover
4509                          * the entire FCF table for a fast recovery
4510                          * from possible case that the current FCF
4511                          * is no longer valid if we are not already
4512                          * in the FCF failover process.
4513                          */
4514                         spin_lock_irq(&phba->hbalock);
4515                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4516                                 spin_unlock_irq(&phba->hbalock);
4517                                 break;
4518                         }
4519                         /* Mark the fast failover process in progress */
4520                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4521                         spin_unlock_irq(&phba->hbalock);
4522                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4523                                         LOG_DISCOVERY,
4524                                         "2773 Start FCF failover per CVL, "
4525                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4526                         rc = lpfc_sli4_redisc_fcf_table(phba);
4527                         if (rc) {
4528                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4529                                                 LOG_DISCOVERY,
4530                                                 "2774 Issue FCF rediscover "
4531                                                 "mabilbox command failed, "
4532                                                 "through to CVL event\n");
4533                                 spin_lock_irq(&phba->hbalock);
4534                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4535                                 spin_unlock_irq(&phba->hbalock);
4536                                 /*
4537                                  * Last resort will be re-try on the
4538                                  * the current registered FCF entry.
4539                                  */
4540                                 lpfc_retry_pport_discovery(phba);
4541                         } else
4542                                 /*
4543                                  * Reset FCF roundrobin bmask for new
4544                                  * discovery.
4545                                  */
4546                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4547                 }
4548                 break;
4549         default:
4550                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4551                         "0288 Unknown FCoE event type 0x%x event tag "
4552                         "0x%x\n", event_type, acqe_fip->event_tag);
4553                 break;
4554         }
4555 }
4556
4557 /**
4558  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4559  * @phba: pointer to lpfc hba data structure.
4560  * @acqe_link: pointer to the async dcbx completion queue entry.
4561  *
4562  * This routine is to handle the SLI4 asynchronous dcbx event.
4563  **/
4564 static void
4565 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4566                          struct lpfc_acqe_dcbx *acqe_dcbx)
4567 {
4568         phba->fc_eventTag = acqe_dcbx->event_tag;
4569         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4570                         "0290 The SLI4 DCBX asynchronous event is not "
4571                         "handled yet\n");
4572 }
4573
4574 /**
4575  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4576  * @phba: pointer to lpfc hba data structure.
4577  * @acqe_link: pointer to the async grp5 completion queue entry.
4578  *
4579  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4580  * is an asynchronous notified of a logical link speed change.  The Port
4581  * reports the logical link speed in units of 10Mbps.
4582  **/
4583 static void
4584 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4585                          struct lpfc_acqe_grp5 *acqe_grp5)
4586 {
4587         uint16_t prev_ll_spd;
4588
4589         phba->fc_eventTag = acqe_grp5->event_tag;
4590         phba->fcoe_eventtag = acqe_grp5->event_tag;
4591         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4592         phba->sli4_hba.link_state.logical_speed =
4593                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4594         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4595                         "2789 GRP5 Async Event: Updating logical link speed "
4596                         "from %dMbps to %dMbps\n", prev_ll_spd,
4597                         phba->sli4_hba.link_state.logical_speed);
4598 }
4599
4600 /**
4601  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4602  * @phba: pointer to lpfc hba data structure.
4603  *
4604  * This routine is invoked by the worker thread to process all the pending
4605  * SLI4 asynchronous events.
4606  **/
4607 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4608 {
4609         struct lpfc_cq_event *cq_event;
4610
4611         /* First, declare the async event has been handled */
4612         spin_lock_irq(&phba->hbalock);
4613         phba->hba_flag &= ~ASYNC_EVENT;
4614         spin_unlock_irq(&phba->hbalock);
4615         /* Now, handle all the async events */
4616         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4617                 /* Get the first event from the head of the event queue */
4618                 spin_lock_irq(&phba->hbalock);
4619                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4620                                  cq_event, struct lpfc_cq_event, list);
4621                 spin_unlock_irq(&phba->hbalock);
4622                 /* Process the asynchronous event */
4623                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4624                 case LPFC_TRAILER_CODE_LINK:
4625                         lpfc_sli4_async_link_evt(phba,
4626                                                  &cq_event->cqe.acqe_link);
4627                         break;
4628                 case LPFC_TRAILER_CODE_FCOE:
4629                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4630                         break;
4631                 case LPFC_TRAILER_CODE_DCBX:
4632                         lpfc_sli4_async_dcbx_evt(phba,
4633                                                  &cq_event->cqe.acqe_dcbx);
4634                         break;
4635                 case LPFC_TRAILER_CODE_GRP5:
4636                         lpfc_sli4_async_grp5_evt(phba,
4637                                                  &cq_event->cqe.acqe_grp5);
4638                         break;
4639                 case LPFC_TRAILER_CODE_FC:
4640                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4641                         break;
4642                 case LPFC_TRAILER_CODE_SLI:
4643                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4644                         break;
4645                 default:
4646                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4647                                         "1804 Invalid asynchrous event code: "
4648                                         "x%x\n", bf_get(lpfc_trailer_code,
4649                                         &cq_event->cqe.mcqe_cmpl));
4650                         break;
4651                 }
4652                 /* Free the completion event processed to the free pool */
4653                 lpfc_sli4_cq_event_release(phba, cq_event);
4654         }
4655 }
4656
4657 /**
4658  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4659  * @phba: pointer to lpfc hba data structure.
4660  *
4661  * This routine is invoked by the worker thread to process FCF table
4662  * rediscovery pending completion event.
4663  **/
4664 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4665 {
4666         int rc;
4667
4668         spin_lock_irq(&phba->hbalock);
4669         /* Clear FCF rediscovery timeout event */
4670         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4671         /* Clear driver fast failover FCF record flag */
4672         phba->fcf.failover_rec.flag = 0;
4673         /* Set state for FCF fast failover */
4674         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4675         spin_unlock_irq(&phba->hbalock);
4676
4677         /* Scan FCF table from the first entry to re-discover SAN */
4678         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4679                         "2777 Start post-quiescent FCF table scan\n");
4680         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4681         if (rc)
4682                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4683                                 "2747 Issue FCF scan read FCF mailbox "
4684                                 "command failed 0x%x\n", rc);
4685 }
4686
4687 /**
4688  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4689  * @phba: pointer to lpfc hba data structure.
4690  * @dev_grp: The HBA PCI-Device group number.
4691  *
4692  * This routine is invoked to set up the per HBA PCI-Device group function
4693  * API jump table entries.
4694  *
4695  * Return: 0 if success, otherwise -ENODEV
4696  **/
4697 int
4698 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4699 {
4700         int rc;
4701
4702         /* Set up lpfc PCI-device group */
4703         phba->pci_dev_grp = dev_grp;
4704
4705         /* The LPFC_PCI_DEV_OC uses SLI4 */
4706         if (dev_grp == LPFC_PCI_DEV_OC)
4707                 phba->sli_rev = LPFC_SLI_REV4;
4708
4709         /* Set up device INIT API function jump table */
4710         rc = lpfc_init_api_table_setup(phba, dev_grp);
4711         if (rc)
4712                 return -ENODEV;
4713         /* Set up SCSI API function jump table */
4714         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4715         if (rc)
4716                 return -ENODEV;
4717         /* Set up SLI API function jump table */
4718         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4719         if (rc)
4720                 return -ENODEV;
4721         /* Set up MBOX API function jump table */
4722         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4723         if (rc)
4724                 return -ENODEV;
4725
4726         return 0;
4727 }
4728
4729 /**
4730  * lpfc_log_intr_mode - Log the active interrupt mode
4731  * @phba: pointer to lpfc hba data structure.
4732  * @intr_mode: active interrupt mode adopted.
4733  *
4734  * This routine it invoked to log the currently used active interrupt mode
4735  * to the device.
4736  **/
4737 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4738 {
4739         switch (intr_mode) {
4740         case 0:
4741                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4742                                 "0470 Enable INTx interrupt mode.\n");
4743                 break;
4744         case 1:
4745                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4746                                 "0481 Enabled MSI interrupt mode.\n");
4747                 break;
4748         case 2:
4749                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4750                                 "0480 Enabled MSI-X interrupt mode.\n");
4751                 break;
4752         default:
4753                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4754                                 "0482 Illegal interrupt mode.\n");
4755                 break;
4756         }
4757         return;
4758 }
4759
4760 /**
4761  * lpfc_enable_pci_dev - Enable a generic PCI device.
4762  * @phba: pointer to lpfc hba data structure.
4763  *
4764  * This routine is invoked to enable the PCI device that is common to all
4765  * PCI devices.
4766  *
4767  * Return codes
4768  *      0 - successful
4769  *      other values - error
4770  **/
4771 static int
4772 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4773 {
4774         struct pci_dev *pdev;
4775         int bars = 0;
4776
4777         /* Obtain PCI device reference */
4778         if (!phba->pcidev)
4779                 goto out_error;
4780         else
4781                 pdev = phba->pcidev;
4782         /* Select PCI BARs */
4783         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4784         /* Enable PCI device */
4785         if (pci_enable_device_mem(pdev))
4786                 goto out_error;
4787         /* Request PCI resource for the device */
4788         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4789                 goto out_disable_device;
4790         /* Set up device as PCI master and save state for EEH */
4791         pci_set_master(pdev);
4792         pci_try_set_mwi(pdev);
4793         pci_save_state(pdev);
4794
4795         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4796         if (pci_is_pcie(pdev))
4797                 pdev->needs_freset = 1;
4798
4799         return 0;
4800
4801 out_disable_device:
4802         pci_disable_device(pdev);
4803 out_error:
4804         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4805                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4806         return -ENODEV;
4807 }
4808
4809 /**
4810  * lpfc_disable_pci_dev - Disable a generic PCI device.
4811  * @phba: pointer to lpfc hba data structure.
4812  *
4813  * This routine is invoked to disable the PCI device that is common to all
4814  * PCI devices.
4815  **/
4816 static void
4817 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4818 {
4819         struct pci_dev *pdev;
4820         int bars;
4821
4822         /* Obtain PCI device reference */
4823         if (!phba->pcidev)
4824                 return;
4825         else
4826                 pdev = phba->pcidev;
4827         /* Select PCI BARs */
4828         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4829         /* Release PCI resource and disable PCI device */
4830         pci_release_selected_regions(pdev, bars);
4831         pci_disable_device(pdev);
4832
4833         return;
4834 }
4835
4836 /**
4837  * lpfc_reset_hba - Reset a hba
4838  * @phba: pointer to lpfc hba data structure.
4839  *
4840  * This routine is invoked to reset a hba device. It brings the HBA
4841  * offline, performs a board restart, and then brings the board back
4842  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4843  * on outstanding mailbox commands.
4844  **/
4845 void
4846 lpfc_reset_hba(struct lpfc_hba *phba)
4847 {
4848         /* If resets are disabled then set error state and return. */
4849         if (!phba->cfg_enable_hba_reset) {
4850                 phba->link_state = LPFC_HBA_ERROR;
4851                 return;
4852         }
4853         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4854                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4855         else
4856                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4857         lpfc_offline(phba);
4858         lpfc_sli_brdrestart(phba);
4859         lpfc_online(phba);
4860         lpfc_unblock_mgmt_io(phba);
4861 }
4862
4863 /**
4864  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4865  * @phba: pointer to lpfc hba data structure.
4866  *
4867  * This function enables the PCI SR-IOV virtual functions to a physical
4868  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4869  * enable the number of virtual functions to the physical function. As
4870  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4871  * API call does not considered as an error condition for most of the device.
4872  **/
4873 uint16_t
4874 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4875 {
4876         struct pci_dev *pdev = phba->pcidev;
4877         uint16_t nr_virtfn;
4878         int pos;
4879
4880         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4881         if (pos == 0)
4882                 return 0;
4883
4884         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4885         return nr_virtfn;
4886 }
4887
4888 /**
4889  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4890  * @phba: pointer to lpfc hba data structure.
4891  * @nr_vfn: number of virtual functions to be enabled.
4892  *
4893  * This function enables the PCI SR-IOV virtual functions to a physical
4894  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4895  * enable the number of virtual functions to the physical function. As
4896  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4897  * API call does not considered as an error condition for most of the device.
4898  **/
4899 int
4900 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4901 {
4902         struct pci_dev *pdev = phba->pcidev;
4903         uint16_t max_nr_vfn;
4904         int rc;
4905
4906         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4907         if (nr_vfn > max_nr_vfn) {
4908                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4909                                 "3057 Requested vfs (%d) greater than "
4910                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4911                 return -EINVAL;
4912         }
4913
4914         rc = pci_enable_sriov(pdev, nr_vfn);
4915         if (rc) {
4916                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4917                                 "2806 Failed to enable sriov on this device "
4918                                 "with vfn number nr_vf:%d, rc:%d\n",
4919                                 nr_vfn, rc);
4920         } else
4921                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4922                                 "2807 Successful enable sriov on this device "
4923                                 "with vfn number nr_vf:%d\n", nr_vfn);
4924         return rc;
4925 }
4926
4927 /**
4928  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4929  * @phba: pointer to lpfc hba data structure.
4930  *
4931  * This routine is invoked to set up the driver internal resources specific to
4932  * support the SLI-3 HBA device it attached to.
4933  *
4934  * Return codes
4935  *      0 - successful
4936  *      other values - error
4937  **/
4938 static int
4939 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4940 {
4941         struct lpfc_sli *psli;
4942         int rc;
4943
4944         /*
4945          * Initialize timers used by driver
4946          */
4947
4948         /* Heartbeat timer */
4949         init_timer(&phba->hb_tmofunc);
4950         phba->hb_tmofunc.function = lpfc_hb_timeout;
4951         phba->hb_tmofunc.data = (unsigned long)phba;
4952
4953         psli = &phba->sli;
4954         /* MBOX heartbeat timer */
4955         init_timer(&psli->mbox_tmo);
4956         psli->mbox_tmo.function = lpfc_mbox_timeout;
4957         psli->mbox_tmo.data = (unsigned long) phba;
4958         /* FCP polling mode timer */
4959         init_timer(&phba->fcp_poll_timer);
4960         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4961         phba->fcp_poll_timer.data = (unsigned long) phba;
4962         /* Fabric block timer */
4963         init_timer(&phba->fabric_block_timer);
4964         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4965         phba->fabric_block_timer.data = (unsigned long) phba;
4966         /* EA polling mode timer */
4967         init_timer(&phba->eratt_poll);
4968         phba->eratt_poll.function = lpfc_poll_eratt;
4969         phba->eratt_poll.data = (unsigned long) phba;
4970
4971         /* Host attention work mask setup */
4972         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4973         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4974
4975         /* Get all the module params for configuring this host */
4976         lpfc_get_cfgparam(phba);
4977         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4978                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4979                 /* check for menlo minimum sg count */
4980                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4981                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4982         }
4983
4984         if (!phba->sli.ring)
4985                 phba->sli.ring = (struct lpfc_sli_ring *)
4986                         kzalloc(LPFC_SLI3_MAX_RING *
4987                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4988         if (!phba->sli.ring)
4989                 return -ENOMEM;
4990
4991         /*
4992          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4993          * used to create the sg_dma_buf_pool must be dynamically calculated.
4994          */
4995
4996         /* Initialize the host templates the configured values. */
4997         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4998         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4999
5000         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5001         if (phba->cfg_enable_bg) {
5002                 /*
5003                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5004                  * the FCP rsp, and a BDE for each. Sice we have no control
5005                  * over how many protection data segments the SCSI Layer
5006                  * will hand us (ie: there could be one for every block
5007                  * in the IO), we just allocate enough BDEs to accomidate
5008                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5009                  * minimize the risk of running out.
5010                  */
5011                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5012                         sizeof(struct fcp_rsp) +
5013                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5014
5015                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5016                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5017
5018                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5019                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5020         } else {
5021                 /*
5022                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5023                  * the FCP rsp, a BDE for each, and a BDE for up to
5024                  * cfg_sg_seg_cnt data segments.
5025                  */
5026                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5027                         sizeof(struct fcp_rsp) +
5028                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5029
5030                 /* Total BDEs in BPL for scsi_sg_list */
5031                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5032         }
5033
5034         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5035                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5036                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5037                         phba->cfg_total_seg_cnt);
5038
5039         phba->max_vpi = LPFC_MAX_VPI;
5040         /* This will be set to correct value after config_port mbox */
5041         phba->max_vports = 0;
5042
5043         /*
5044          * Initialize the SLI Layer to run with lpfc HBAs.
5045          */
5046         lpfc_sli_setup(phba);
5047         lpfc_sli_queue_setup(phba);
5048
5049         /* Allocate device driver memory */
5050         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5051                 return -ENOMEM;
5052
5053         /*
5054          * Enable sr-iov virtual functions if supported and configured
5055          * through the module parameter.
5056          */
5057         if (phba->cfg_sriov_nr_virtfn > 0) {
5058                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5059                                                  phba->cfg_sriov_nr_virtfn);
5060                 if (rc) {
5061                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5062                                         "2808 Requested number of SR-IOV "
5063                                         "virtual functions (%d) is not "
5064                                         "supported\n",
5065                                         phba->cfg_sriov_nr_virtfn);
5066                         phba->cfg_sriov_nr_virtfn = 0;
5067                 }
5068         }
5069
5070         return 0;
5071 }
5072
5073 /**
5074  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5075  * @phba: pointer to lpfc hba data structure.
5076  *
5077  * This routine is invoked to unset the driver internal resources set up
5078  * specific for supporting the SLI-3 HBA device it attached to.
5079  **/
5080 static void
5081 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5082 {
5083         /* Free device driver memory allocated */
5084         lpfc_mem_free_all(phba);
5085
5086         return;
5087 }
5088
5089 /**
5090  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5091  * @phba: pointer to lpfc hba data structure.
5092  *
5093  * This routine is invoked to set up the driver internal resources specific to
5094  * support the SLI-4 HBA device it attached to.
5095  *
5096  * Return codes
5097  *      0 - successful
5098  *      other values - error
5099  **/
5100 static int
5101 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5102 {
5103         struct lpfc_vector_map_info *cpup;
5104         struct lpfc_sli *psli;
5105         LPFC_MBOXQ_t *mboxq;
5106         int rc, i, hbq_count, max_buf_size;
5107         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5108         struct lpfc_mqe *mqe;
5109         int longs;
5110         int fof_vectors = 0;
5111
5112         /* Get all the module params for configuring this host */
5113         lpfc_get_cfgparam(phba);
5114
5115         /* Before proceed, wait for POST done and device ready */
5116         rc = lpfc_sli4_post_status_check(phba);
5117         if (rc)
5118                 return -ENODEV;
5119
5120         /*
5121          * Initialize timers used by driver
5122          */
5123
5124         /* Heartbeat timer */
5125         init_timer(&phba->hb_tmofunc);
5126         phba->hb_tmofunc.function = lpfc_hb_timeout;
5127         phba->hb_tmofunc.data = (unsigned long)phba;
5128         init_timer(&phba->rrq_tmr);
5129         phba->rrq_tmr.function = lpfc_rrq_timeout;
5130         phba->rrq_tmr.data = (unsigned long)phba;
5131
5132         psli = &phba->sli;
5133         /* MBOX heartbeat timer */
5134         init_timer(&psli->mbox_tmo);
5135         psli->mbox_tmo.function = lpfc_mbox_timeout;
5136         psli->mbox_tmo.data = (unsigned long) phba;
5137         /* Fabric block timer */
5138         init_timer(&phba->fabric_block_timer);
5139         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5140         phba->fabric_block_timer.data = (unsigned long) phba;
5141         /* EA polling mode timer */
5142         init_timer(&phba->eratt_poll);
5143         phba->eratt_poll.function = lpfc_poll_eratt;
5144         phba->eratt_poll.data = (unsigned long) phba;
5145         /* FCF rediscover timer */
5146         init_timer(&phba->fcf.redisc_wait);
5147         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5148         phba->fcf.redisc_wait.data = (unsigned long)phba;
5149
5150         /*
5151          * Control structure for handling external multi-buffer mailbox
5152          * command pass-through.
5153          */
5154         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5155                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5156         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5157
5158         phba->max_vpi = LPFC_MAX_VPI;
5159
5160         /* This will be set to correct value after the read_config mbox */
5161         phba->max_vports = 0;
5162
5163         /* Program the default value of vlan_id and fc_map */
5164         phba->valid_vlan = 0;
5165         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5166         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5167         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5168
5169         /*
5170          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5171          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5172          */
5173         if (!phba->sli.ring)
5174                 phba->sli.ring = kzalloc(
5175                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5176                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5177         if (!phba->sli.ring)
5178                 return -ENOMEM;
5179
5180         /*
5181          * It doesn't matter what family our adapter is in, we are
5182          * limited to 2 Pages, 512 SGEs, for our SGL.
5183          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5184          */
5185         max_buf_size = (2 * SLI4_PAGE_SIZE);
5186         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5187                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5188
5189         /*
5190          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5191          * used to create the sg_dma_buf_pool must be dynamically calculated.
5192          */
5193
5194         if (phba->cfg_enable_bg) {
5195                 /*
5196                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5197                  * the FCP rsp, and a SGE for each. Sice we have no control
5198                  * over how many protection data segments the SCSI Layer
5199                  * will hand us (ie: there could be one for every block
5200                  * in the IO), we just allocate enough SGEs to accomidate
5201                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5202                  * minimize the risk of running out.
5203                  */
5204                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5205                         sizeof(struct fcp_rsp) + max_buf_size;
5206
5207                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5208                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5209
5210                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5211                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5212         } else {
5213                 /*
5214                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5215                  * the FCP rsp, a SGE for each, and a SGE for up to
5216                  * cfg_sg_seg_cnt data segments.
5217                  */
5218                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5219                         sizeof(struct fcp_rsp) +
5220                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5221
5222                 /* Total SGEs for scsi_sg_list */
5223                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5224                 /*
5225                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5226                  * to post 1 page for the SGL.
5227                  */
5228         }
5229
5230         /* Initialize the host templates with the updated values. */
5231         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5232         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5233
5234         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5235                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5236         else
5237                 phba->cfg_sg_dma_buf_size =
5238                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5239
5240         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5241                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5242                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5243                         phba->cfg_total_seg_cnt);
5244
5245         /* Initialize buffer queue management fields */
5246         hbq_count = lpfc_sli_hbq_count();
5247         for (i = 0; i < hbq_count; ++i)
5248                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5249         INIT_LIST_HEAD(&phba->rb_pend_list);
5250         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5251         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5252
5253         /*
5254          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5255          */
5256         /* Initialize the Abort scsi buffer list used by driver */
5257         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5258         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5259         /* This abort list used by worker thread */
5260         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5261
5262         /*
5263          * Initialize driver internal slow-path work queues
5264          */
5265
5266         /* Driver internel slow-path CQ Event pool */
5267         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5268         /* Response IOCB work queue list */
5269         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5270         /* Asynchronous event CQ Event work queue list */
5271         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5272         /* Fast-path XRI aborted CQ Event work queue list */
5273         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5274         /* Slow-path XRI aborted CQ Event work queue list */
5275         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5276         /* Receive queue CQ Event work queue list */
5277         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5278
5279         /* Initialize extent block lists. */
5280         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5281         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5282         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5283         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5284
5285         /* Initialize the driver internal SLI layer lists. */
5286         lpfc_sli_setup(phba);
5287         lpfc_sli_queue_setup(phba);
5288
5289         /* Allocate device driver memory */
5290         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5291         if (rc)
5292                 return -ENOMEM;
5293
5294         /* IF Type 2 ports get initialized now. */
5295         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5296             LPFC_SLI_INTF_IF_TYPE_2) {
5297                 rc = lpfc_pci_function_reset(phba);
5298                 if (unlikely(rc))
5299                         return -ENODEV;
5300                 phba->temp_sensor_support = 1;
5301         }
5302
5303         /* Create the bootstrap mailbox command */
5304         rc = lpfc_create_bootstrap_mbox(phba);
5305         if (unlikely(rc))
5306                 goto out_free_mem;
5307
5308         /* Set up the host's endian order with the device. */
5309         rc = lpfc_setup_endian_order(phba);
5310         if (unlikely(rc))
5311                 goto out_free_bsmbx;
5312
5313         /* Set up the hba's configuration parameters. */
5314         rc = lpfc_sli4_read_config(phba);
5315         if (unlikely(rc))
5316                 goto out_free_bsmbx;
5317         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5318         if (unlikely(rc))
5319                 goto out_free_bsmbx;
5320
5321         /* IF Type 0 ports get initialized now. */
5322         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5323             LPFC_SLI_INTF_IF_TYPE_0) {
5324                 rc = lpfc_pci_function_reset(phba);
5325                 if (unlikely(rc))
5326                         goto out_free_bsmbx;
5327         }
5328
5329         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5330                                                        GFP_KERNEL);
5331         if (!mboxq) {
5332                 rc = -ENOMEM;
5333                 goto out_free_bsmbx;
5334         }
5335
5336         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5337         lpfc_supported_pages(mboxq);
5338         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5339         if (!rc) {
5340                 mqe = &mboxq->u.mqe;
5341                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5342                        LPFC_MAX_SUPPORTED_PAGES);
5343                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5344                         switch (pn_page[i]) {
5345                         case LPFC_SLI4_PARAMETERS:
5346                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5347                                 break;
5348                         default:
5349                                 break;
5350                         }
5351                 }
5352                 /* Read the port's SLI4 Parameters capabilities if supported. */
5353                 if (phba->sli4_hba.pc_sli4_params.supported)
5354                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5355                 if (rc) {
5356                         mempool_free(mboxq, phba->mbox_mem_pool);
5357                         rc = -EIO;
5358                         goto out_free_bsmbx;
5359                 }
5360         }
5361         /*
5362          * Get sli4 parameters that override parameters from Port capabilities.
5363          * If this call fails, it isn't critical unless the SLI4 parameters come
5364          * back in conflict.
5365          */
5366         rc = lpfc_get_sli4_parameters(phba, mboxq);
5367         if (rc) {
5368                 if (phba->sli4_hba.extents_in_use &&
5369                     phba->sli4_hba.rpi_hdrs_in_use) {
5370                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5371                                 "2999 Unsupported SLI4 Parameters "
5372                                 "Extents and RPI headers enabled.\n");
5373                         goto out_free_bsmbx;
5374                 }
5375         }
5376         mempool_free(mboxq, phba->mbox_mem_pool);
5377
5378         /* Verify OAS is supported */
5379         lpfc_sli4_oas_verify(phba);
5380         if (phba->cfg_fof)
5381                 fof_vectors = 1;
5382
5383         /* Verify all the SLI4 queues */
5384         rc = lpfc_sli4_queue_verify(phba);
5385         if (rc)
5386                 goto out_free_bsmbx;
5387
5388         /* Create driver internal CQE event pool */
5389         rc = lpfc_sli4_cq_event_pool_create(phba);
5390         if (rc)
5391                 goto out_free_bsmbx;
5392
5393         /* Initialize sgl lists per host */
5394         lpfc_init_sgl_list(phba);
5395
5396         /* Allocate and initialize active sgl array */
5397         rc = lpfc_init_active_sgl_array(phba);
5398         if (rc) {
5399                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5400                                 "1430 Failed to initialize sgl list.\n");
5401                 goto out_destroy_cq_event_pool;
5402         }
5403         rc = lpfc_sli4_init_rpi_hdrs(phba);
5404         if (rc) {
5405                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5406                                 "1432 Failed to initialize rpi headers.\n");
5407                 goto out_free_active_sgl;
5408         }
5409
5410         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5411         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5412         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5413                                          GFP_KERNEL);
5414         if (!phba->fcf.fcf_rr_bmask) {
5415                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5416                                 "2759 Failed allocate memory for FCF round "
5417                                 "robin failover bmask\n");
5418                 rc = -ENOMEM;
5419                 goto out_remove_rpi_hdrs;
5420         }
5421
5422         phba->sli4_hba.fcp_eq_hdl =
5423                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5424                             (fof_vectors + phba->cfg_fcp_io_channel)),
5425                             GFP_KERNEL);
5426         if (!phba->sli4_hba.fcp_eq_hdl) {
5427                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5428                                 "2572 Failed allocate memory for "
5429                                 "fast-path per-EQ handle array\n");
5430                 rc = -ENOMEM;
5431                 goto out_free_fcf_rr_bmask;
5432         }
5433
5434         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5435                                   (fof_vectors +
5436                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5437         if (!phba->sli4_hba.msix_entries) {
5438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5439                                 "2573 Failed allocate memory for msi-x "
5440                                 "interrupt vector entries\n");
5441                 rc = -ENOMEM;
5442                 goto out_free_fcp_eq_hdl;
5443         }
5444
5445         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5446                                          phba->sli4_hba.num_present_cpu),
5447                                          GFP_KERNEL);
5448         if (!phba->sli4_hba.cpu_map) {
5449                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450                                 "3327 Failed allocate memory for msi-x "
5451                                 "interrupt vector mapping\n");
5452                 rc = -ENOMEM;
5453                 goto out_free_msix;
5454         }
5455         if (lpfc_used_cpu == NULL) {
5456                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5457                                          GFP_KERNEL);
5458                 if (!lpfc_used_cpu) {
5459                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460                                         "3335 Failed allocate memory for msi-x "
5461                                         "interrupt vector mapping\n");
5462                         kfree(phba->sli4_hba.cpu_map);
5463                         rc = -ENOMEM;
5464                         goto out_free_msix;
5465                 }
5466                 for (i = 0; i < lpfc_present_cpu; i++)
5467                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5468         }
5469
5470         /* Initialize io channels for round robin */
5471         cpup = phba->sli4_hba.cpu_map;
5472         rc = 0;
5473         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5474                 cpup->channel_id = rc;
5475                 rc++;
5476                 if (rc >= phba->cfg_fcp_io_channel)
5477                         rc = 0;
5478         }
5479
5480         /*
5481          * Enable sr-iov virtual functions if supported and configured
5482          * through the module parameter.
5483          */
5484         if (phba->cfg_sriov_nr_virtfn > 0) {
5485                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5486                                                  phba->cfg_sriov_nr_virtfn);
5487                 if (rc) {
5488                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5489                                         "3020 Requested number of SR-IOV "
5490                                         "virtual functions (%d) is not "
5491                                         "supported\n",
5492                                         phba->cfg_sriov_nr_virtfn);
5493                         phba->cfg_sriov_nr_virtfn = 0;
5494                 }
5495         }
5496
5497         return 0;
5498
5499 out_free_msix:
5500         kfree(phba->sli4_hba.msix_entries);
5501 out_free_fcp_eq_hdl:
5502         kfree(phba->sli4_hba.fcp_eq_hdl);
5503 out_free_fcf_rr_bmask:
5504         kfree(phba->fcf.fcf_rr_bmask);
5505 out_remove_rpi_hdrs:
5506         lpfc_sli4_remove_rpi_hdrs(phba);
5507 out_free_active_sgl:
5508         lpfc_free_active_sgl(phba);
5509 out_destroy_cq_event_pool:
5510         lpfc_sli4_cq_event_pool_destroy(phba);
5511 out_free_bsmbx:
5512         lpfc_destroy_bootstrap_mbox(phba);
5513 out_free_mem:
5514         lpfc_mem_free(phba);
5515         return rc;
5516 }
5517
5518 /**
5519  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5520  * @phba: pointer to lpfc hba data structure.
5521  *
5522  * This routine is invoked to unset the driver internal resources set up
5523  * specific for supporting the SLI-4 HBA device it attached to.
5524  **/
5525 static void
5526 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5527 {
5528         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5529
5530         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5531         kfree(phba->sli4_hba.cpu_map);
5532         phba->sli4_hba.num_present_cpu = 0;
5533         phba->sli4_hba.num_online_cpu = 0;
5534         phba->sli4_hba.curr_disp_cpu = 0;
5535
5536         /* Free memory allocated for msi-x interrupt vector entries */
5537         kfree(phba->sli4_hba.msix_entries);
5538
5539         /* Free memory allocated for fast-path work queue handles */
5540         kfree(phba->sli4_hba.fcp_eq_hdl);
5541
5542         /* Free the allocated rpi headers. */
5543         lpfc_sli4_remove_rpi_hdrs(phba);
5544         lpfc_sli4_remove_rpis(phba);
5545
5546         /* Free eligible FCF index bmask */
5547         kfree(phba->fcf.fcf_rr_bmask);
5548
5549         /* Free the ELS sgl list */
5550         lpfc_free_active_sgl(phba);
5551         lpfc_free_els_sgl_list(phba);
5552
5553         /* Free the completion queue EQ event pool */
5554         lpfc_sli4_cq_event_release_all(phba);
5555         lpfc_sli4_cq_event_pool_destroy(phba);
5556
5557         /* Release resource identifiers. */
5558         lpfc_sli4_dealloc_resource_identifiers(phba);
5559
5560         /* Free the bsmbx region. */
5561         lpfc_destroy_bootstrap_mbox(phba);
5562
5563         /* Free the SLI Layer memory with SLI4 HBAs */
5564         lpfc_mem_free_all(phba);
5565
5566         /* Free the current connect table */
5567         list_for_each_entry_safe(conn_entry, next_conn_entry,
5568                 &phba->fcf_conn_rec_list, list) {
5569                 list_del_init(&conn_entry->list);
5570                 kfree(conn_entry);
5571         }
5572
5573         return;
5574 }
5575
5576 /**
5577  * lpfc_init_api_table_setup - Set up init api function jump table
5578  * @phba: The hba struct for which this call is being executed.
5579  * @dev_grp: The HBA PCI-Device group number.
5580  *
5581  * This routine sets up the device INIT interface API function jump table
5582  * in @phba struct.
5583  *
5584  * Returns: 0 - success, -ENODEV - failure.
5585  **/
5586 int
5587 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5588 {
5589         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5590         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5591         phba->lpfc_selective_reset = lpfc_selective_reset;
5592         switch (dev_grp) {
5593         case LPFC_PCI_DEV_LP:
5594                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5595                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5596                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5597                 break;
5598         case LPFC_PCI_DEV_OC:
5599                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5600                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5601                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5602                 break;
5603         default:
5604                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5605                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5606                                 dev_grp);
5607                 return -ENODEV;
5608                 break;
5609         }
5610         return 0;
5611 }
5612
5613 /**
5614  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5615  * @phba: pointer to lpfc hba data structure.
5616  *
5617  * This routine is invoked to set up the driver internal resources before the
5618  * device specific resource setup to support the HBA device it attached to.
5619  *
5620  * Return codes
5621  *      0 - successful
5622  *      other values - error
5623  **/
5624 static int
5625 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5626 {
5627         /*
5628          * Driver resources common to all SLI revisions
5629          */
5630         atomic_set(&phba->fast_event_count, 0);
5631         spin_lock_init(&phba->hbalock);
5632
5633         /* Initialize ndlp management spinlock */
5634         spin_lock_init(&phba->ndlp_lock);
5635
5636         INIT_LIST_HEAD(&phba->port_list);
5637         INIT_LIST_HEAD(&phba->work_list);
5638         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5639
5640         /* Initialize the wait queue head for the kernel thread */
5641         init_waitqueue_head(&phba->work_waitq);
5642
5643         /* Initialize the scsi buffer list used by driver for scsi IO */
5644         spin_lock_init(&phba->scsi_buf_list_get_lock);
5645         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5646         spin_lock_init(&phba->scsi_buf_list_put_lock);
5647         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5648
5649         /* Initialize the fabric iocb list */
5650         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5651
5652         /* Initialize list to save ELS buffers */
5653         INIT_LIST_HEAD(&phba->elsbuf);
5654
5655         /* Initialize FCF connection rec list */
5656         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5657
5658         /* Initialize OAS configuration list */
5659         spin_lock_init(&phba->devicelock);
5660         INIT_LIST_HEAD(&phba->luns);
5661
5662         return 0;
5663 }
5664
5665 /**
5666  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5667  * @phba: pointer to lpfc hba data structure.
5668  *
5669  * This routine is invoked to set up the driver internal resources after the
5670  * device specific resource setup to support the HBA device it attached to.
5671  *
5672  * Return codes
5673  *      0 - successful
5674  *      other values - error
5675  **/
5676 static int
5677 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5678 {
5679         int error;
5680
5681         /* Startup the kernel thread for this host adapter. */
5682         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5683                                           "lpfc_worker_%d", phba->brd_no);
5684         if (IS_ERR(phba->worker_thread)) {
5685                 error = PTR_ERR(phba->worker_thread);
5686                 return error;
5687         }
5688
5689         return 0;
5690 }
5691
5692 /**
5693  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5694  * @phba: pointer to lpfc hba data structure.
5695  *
5696  * This routine is invoked to unset the driver internal resources set up after
5697  * the device specific resource setup for supporting the HBA device it
5698  * attached to.
5699  **/
5700 static void
5701 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5702 {
5703         /* Stop kernel worker thread */
5704         kthread_stop(phba->worker_thread);
5705 }
5706
5707 /**
5708  * lpfc_free_iocb_list - Free iocb list.
5709  * @phba: pointer to lpfc hba data structure.
5710  *
5711  * This routine is invoked to free the driver's IOCB list and memory.
5712  **/
5713 static void
5714 lpfc_free_iocb_list(struct lpfc_hba *phba)
5715 {
5716         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5717
5718         spin_lock_irq(&phba->hbalock);
5719         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5720                                  &phba->lpfc_iocb_list, list) {
5721                 list_del(&iocbq_entry->list);
5722                 kfree(iocbq_entry);
5723                 phba->total_iocbq_bufs--;
5724         }
5725         spin_unlock_irq(&phba->hbalock);
5726
5727         return;
5728 }
5729
5730 /**
5731  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5732  * @phba: pointer to lpfc hba data structure.
5733  *
5734  * This routine is invoked to allocate and initizlize the driver's IOCB
5735  * list and set up the IOCB tag array accordingly.
5736  *
5737  * Return codes
5738  *      0 - successful
5739  *      other values - error
5740  **/
5741 static int
5742 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5743 {
5744         struct lpfc_iocbq *iocbq_entry = NULL;
5745         uint16_t iotag;
5746         int i;
5747
5748         /* Initialize and populate the iocb list per host.  */
5749         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5750         for (i = 0; i < iocb_count; i++) {
5751                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5752                 if (iocbq_entry == NULL) {
5753                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5754                                 "expected %d count. Unloading driver.\n",
5755                                 __func__, i, LPFC_IOCB_LIST_CNT);
5756                         goto out_free_iocbq;
5757                 }
5758
5759                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5760                 if (iotag == 0) {
5761                         kfree(iocbq_entry);
5762                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5763                                 "Unloading driver.\n", __func__);
5764                         goto out_free_iocbq;
5765                 }
5766                 iocbq_entry->sli4_lxritag = NO_XRI;
5767                 iocbq_entry->sli4_xritag = NO_XRI;
5768
5769                 spin_lock_irq(&phba->hbalock);
5770                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5771                 phba->total_iocbq_bufs++;
5772                 spin_unlock_irq(&phba->hbalock);
5773         }
5774
5775         return 0;
5776
5777 out_free_iocbq:
5778         lpfc_free_iocb_list(phba);
5779
5780         return -ENOMEM;
5781 }
5782
5783 /**
5784  * lpfc_free_sgl_list - Free a given sgl list.
5785  * @phba: pointer to lpfc hba data structure.
5786  * @sglq_list: pointer to the head of sgl list.
5787  *
5788  * This routine is invoked to free a give sgl list and memory.
5789  **/
5790 void
5791 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5792 {
5793         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5794
5795         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5796                 list_del(&sglq_entry->list);
5797                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5798                 kfree(sglq_entry);
5799         }
5800 }
5801
5802 /**
5803  * lpfc_free_els_sgl_list - Free els sgl list.
5804  * @phba: pointer to lpfc hba data structure.
5805  *
5806  * This routine is invoked to free the driver's els sgl list and memory.
5807  **/
5808 static void
5809 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5810 {
5811         LIST_HEAD(sglq_list);
5812         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5813
5814         /* Retrieve all els sgls from driver list */
5815         spin_lock_irq(&phba->hbalock);
5816         spin_lock(&pring->ring_lock);
5817         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5818         spin_unlock(&pring->ring_lock);
5819         spin_unlock_irq(&phba->hbalock);
5820
5821         /* Now free the sgl list */
5822         lpfc_free_sgl_list(phba, &sglq_list);
5823 }
5824
5825 /**
5826  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5827  * @phba: pointer to lpfc hba data structure.
5828  *
5829  * This routine is invoked to allocate the driver's active sgl memory.
5830  * This array will hold the sglq_entry's for active IOs.
5831  **/
5832 static int
5833 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5834 {
5835         int size;
5836         size = sizeof(struct lpfc_sglq *);
5837         size *= phba->sli4_hba.max_cfg_param.max_xri;
5838
5839         phba->sli4_hba.lpfc_sglq_active_list =
5840                 kzalloc(size, GFP_KERNEL);
5841         if (!phba->sli4_hba.lpfc_sglq_active_list)
5842                 return -ENOMEM;
5843         return 0;
5844 }
5845
5846 /**
5847  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5848  * @phba: pointer to lpfc hba data structure.
5849  *
5850  * This routine is invoked to walk through the array of active sglq entries
5851  * and free all of the resources.
5852  * This is just a place holder for now.
5853  **/
5854 static void
5855 lpfc_free_active_sgl(struct lpfc_hba *phba)
5856 {
5857         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5858 }
5859
5860 /**
5861  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5862  * @phba: pointer to lpfc hba data structure.
5863  *
5864  * This routine is invoked to allocate and initizlize the driver's sgl
5865  * list and set up the sgl xritag tag array accordingly.
5866  *
5867  **/
5868 static void
5869 lpfc_init_sgl_list(struct lpfc_hba *phba)
5870 {
5871         /* Initialize and populate the sglq list per host/VF. */
5872         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5873         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5874
5875         /* els xri-sgl book keeping */
5876         phba->sli4_hba.els_xri_cnt = 0;
5877
5878         /* scsi xri-buffer book keeping */
5879         phba->sli4_hba.scsi_xri_cnt = 0;
5880 }
5881
5882 /**
5883  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5884  * @phba: pointer to lpfc hba data structure.
5885  *
5886  * This routine is invoked to post rpi header templates to the
5887  * port for those SLI4 ports that do not support extents.  This routine
5888  * posts a PAGE_SIZE memory region to the port to hold up to
5889  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5890  * and should be called only when interrupts are disabled.
5891  *
5892  * Return codes
5893  *      0 - successful
5894  *      -ERROR - otherwise.
5895  **/
5896 int
5897 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5898 {
5899         int rc = 0;
5900         struct lpfc_rpi_hdr *rpi_hdr;
5901
5902         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5903         if (!phba->sli4_hba.rpi_hdrs_in_use)
5904                 return rc;
5905         if (phba->sli4_hba.extents_in_use)
5906                 return -EIO;
5907
5908         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5909         if (!rpi_hdr) {
5910                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5911                                 "0391 Error during rpi post operation\n");
5912                 lpfc_sli4_remove_rpis(phba);
5913                 rc = -ENODEV;
5914         }
5915
5916         return rc;
5917 }
5918
5919 /**
5920  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5921  * @phba: pointer to lpfc hba data structure.
5922  *
5923  * This routine is invoked to allocate a single 4KB memory region to
5924  * support rpis and stores them in the phba.  This single region
5925  * provides support for up to 64 rpis.  The region is used globally
5926  * by the device.
5927  *
5928  * Returns:
5929  *   A valid rpi hdr on success.
5930  *   A NULL pointer on any failure.
5931  **/
5932 struct lpfc_rpi_hdr *
5933 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5934 {
5935         uint16_t rpi_limit, curr_rpi_range;
5936         struct lpfc_dmabuf *dmabuf;
5937         struct lpfc_rpi_hdr *rpi_hdr;
5938         uint32_t rpi_count;
5939
5940         /*
5941          * If the SLI4 port supports extents, posting the rpi header isn't
5942          * required.  Set the expected maximum count and let the actual value
5943          * get set when extents are fully allocated.
5944          */
5945         if (!phba->sli4_hba.rpi_hdrs_in_use)
5946                 return NULL;
5947         if (phba->sli4_hba.extents_in_use)
5948                 return NULL;
5949
5950         /* The limit on the logical index is just the max_rpi count. */
5951         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5952         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5953
5954         spin_lock_irq(&phba->hbalock);
5955         /*
5956          * Establish the starting RPI in this header block.  The starting
5957          * rpi is normalized to a zero base because the physical rpi is
5958          * port based.
5959          */
5960         curr_rpi_range = phba->sli4_hba.next_rpi;
5961         spin_unlock_irq(&phba->hbalock);
5962
5963         /*
5964          * The port has a limited number of rpis. The increment here
5965          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5966          * and to allow the full max_rpi range per port.
5967          */
5968         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5969                 rpi_count = rpi_limit - curr_rpi_range;
5970         else
5971                 rpi_count = LPFC_RPI_HDR_COUNT;
5972
5973         if (!rpi_count)
5974                 return NULL;
5975         /*
5976          * First allocate the protocol header region for the port.  The
5977          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5978          */
5979         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5980         if (!dmabuf)
5981                 return NULL;
5982
5983         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5984                                            LPFC_HDR_TEMPLATE_SIZE,
5985                                            &dmabuf->phys, GFP_KERNEL);
5986         if (!dmabuf->virt) {
5987                 rpi_hdr = NULL;
5988                 goto err_free_dmabuf;
5989         }
5990
5991         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5992                 rpi_hdr = NULL;
5993                 goto err_free_coherent;
5994         }
5995
5996         /* Save the rpi header data for cleanup later. */
5997         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5998         if (!rpi_hdr)
5999                 goto err_free_coherent;
6000
6001         rpi_hdr->dmabuf = dmabuf;
6002         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6003         rpi_hdr->page_count = 1;
6004         spin_lock_irq(&phba->hbalock);
6005
6006         /* The rpi_hdr stores the logical index only. */
6007         rpi_hdr->start_rpi = curr_rpi_range;
6008         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6009
6010         /*
6011          * The next_rpi stores the next logical module-64 rpi value used
6012          * to post physical rpis in subsequent rpi postings.
6013          */
6014         phba->sli4_hba.next_rpi += rpi_count;
6015         spin_unlock_irq(&phba->hbalock);
6016         return rpi_hdr;
6017
6018  err_free_coherent:
6019         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6020                           dmabuf->virt, dmabuf->phys);
6021  err_free_dmabuf:
6022         kfree(dmabuf);
6023         return NULL;
6024 }
6025
6026 /**
6027  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6028  * @phba: pointer to lpfc hba data structure.
6029  *
6030  * This routine is invoked to remove all memory resources allocated
6031  * to support rpis for SLI4 ports not supporting extents. This routine
6032  * presumes the caller has released all rpis consumed by fabric or port
6033  * logins and is prepared to have the header pages removed.
6034  **/
6035 void
6036 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6037 {
6038         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6039
6040         if (!phba->sli4_hba.rpi_hdrs_in_use)
6041                 goto exit;
6042
6043         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6044                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6045                 list_del(&rpi_hdr->list);
6046                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6047                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6048                 kfree(rpi_hdr->dmabuf);
6049                 kfree(rpi_hdr);
6050         }
6051  exit:
6052         /* There are no rpis available to the port now. */
6053         phba->sli4_hba.next_rpi = 0;
6054 }
6055
6056 /**
6057  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6058  * @pdev: pointer to pci device data structure.
6059  *
6060  * This routine is invoked to allocate the driver hba data structure for an
6061  * HBA device. If the allocation is successful, the phba reference to the
6062  * PCI device data structure is set.
6063  *
6064  * Return codes
6065  *      pointer to @phba - successful
6066  *      NULL - error
6067  **/
6068 static struct lpfc_hba *
6069 lpfc_hba_alloc(struct pci_dev *pdev)
6070 {
6071         struct lpfc_hba *phba;
6072
6073         /* Allocate memory for HBA structure */
6074         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6075         if (!phba) {
6076                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6077                 return NULL;
6078         }
6079
6080         /* Set reference to PCI device in HBA structure */
6081         phba->pcidev = pdev;
6082
6083         /* Assign an unused board number */
6084         phba->brd_no = lpfc_get_instance();
6085         if (phba->brd_no < 0) {
6086                 kfree(phba);
6087                 return NULL;
6088         }
6089
6090         spin_lock_init(&phba->ct_ev_lock);
6091         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6092
6093         return phba;
6094 }
6095
6096 /**
6097  * lpfc_hba_free - Free driver hba data structure with a device.
6098  * @phba: pointer to lpfc hba data structure.
6099  *
6100  * This routine is invoked to free the driver hba data structure with an
6101  * HBA device.
6102  **/
6103 static void
6104 lpfc_hba_free(struct lpfc_hba *phba)
6105 {
6106         /* Release the driver assigned board number */
6107         idr_remove(&lpfc_hba_index, phba->brd_no);
6108
6109         /* Free memory allocated with sli rings */
6110         kfree(phba->sli.ring);
6111         phba->sli.ring = NULL;
6112
6113         kfree(phba);
6114         return;
6115 }
6116
6117 /**
6118  * lpfc_create_shost - Create hba physical port with associated scsi host.
6119  * @phba: pointer to lpfc hba data structure.
6120  *
6121  * This routine is invoked to create HBA physical port and associate a SCSI
6122  * host with it.
6123  *
6124  * Return codes
6125  *      0 - successful
6126  *      other values - error
6127  **/
6128 static int
6129 lpfc_create_shost(struct lpfc_hba *phba)
6130 {
6131         struct lpfc_vport *vport;
6132         struct Scsi_Host  *shost;
6133
6134         /* Initialize HBA FC structure */
6135         phba->fc_edtov = FF_DEF_EDTOV;
6136         phba->fc_ratov = FF_DEF_RATOV;
6137         phba->fc_altov = FF_DEF_ALTOV;
6138         phba->fc_arbtov = FF_DEF_ARBTOV;
6139
6140         atomic_set(&phba->sdev_cnt, 0);
6141         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6142         if (!vport)
6143                 return -ENODEV;
6144
6145         shost = lpfc_shost_from_vport(vport);
6146         phba->pport = vport;
6147         lpfc_debugfs_initialize(vport);
6148         /* Put reference to SCSI host to driver's device private data */
6149         pci_set_drvdata(phba->pcidev, shost);
6150
6151         return 0;
6152 }
6153
6154 /**
6155  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6156  * @phba: pointer to lpfc hba data structure.
6157  *
6158  * This routine is invoked to destroy HBA physical port and the associated
6159  * SCSI host.
6160  **/
6161 static void
6162 lpfc_destroy_shost(struct lpfc_hba *phba)
6163 {
6164         struct lpfc_vport *vport = phba->pport;
6165
6166         /* Destroy physical port that associated with the SCSI host */
6167         destroy_port(vport);
6168
6169         return;
6170 }
6171
6172 /**
6173  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6174  * @phba: pointer to lpfc hba data structure.
6175  * @shost: the shost to be used to detect Block guard settings.
6176  *
6177  * This routine sets up the local Block guard protocol settings for @shost.
6178  * This routine also allocates memory for debugging bg buffers.
6179  **/
6180 static void
6181 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6182 {
6183         uint32_t old_mask;
6184         uint32_t old_guard;
6185
6186         int pagecnt = 10;
6187         if (lpfc_prot_mask && lpfc_prot_guard) {
6188                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6189                                 "1478 Registering BlockGuard with the "
6190                                 "SCSI layer\n");
6191
6192                 old_mask = lpfc_prot_mask;
6193                 old_guard = lpfc_prot_guard;
6194
6195                 /* Only allow supported values */
6196                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6197                         SHOST_DIX_TYPE0_PROTECTION |
6198                         SHOST_DIX_TYPE1_PROTECTION);
6199                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6200
6201                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6202                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6203                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6204
6205                 if (lpfc_prot_mask && lpfc_prot_guard) {
6206                         if ((old_mask != lpfc_prot_mask) ||
6207                                 (old_guard != lpfc_prot_guard))
6208                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6209                                         "1475 Registering BlockGuard with the "
6210                                         "SCSI layer: mask %d  guard %d\n",
6211                                         lpfc_prot_mask, lpfc_prot_guard);
6212
6213                         scsi_host_set_prot(shost, lpfc_prot_mask);
6214                         scsi_host_set_guard(shost, lpfc_prot_guard);
6215                 } else
6216                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6217                                 "1479 Not Registering BlockGuard with the SCSI "
6218                                 "layer, Bad protection parameters: %d %d\n",
6219                                 old_mask, old_guard);
6220         }
6221
6222         if (!_dump_buf_data) {
6223                 while (pagecnt) {
6224                         spin_lock_init(&_dump_buf_lock);
6225                         _dump_buf_data =
6226                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6227                         if (_dump_buf_data) {
6228                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6229                                         "9043 BLKGRD: allocated %d pages for "
6230                                        "_dump_buf_data at 0x%p\n",
6231                                        (1 << pagecnt), _dump_buf_data);
6232                                 _dump_buf_data_order = pagecnt;
6233                                 memset(_dump_buf_data, 0,
6234                                        ((1 << PAGE_SHIFT) << pagecnt));
6235                                 break;
6236                         } else
6237                                 --pagecnt;
6238                 }
6239                 if (!_dump_buf_data_order)
6240                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6241                                 "9044 BLKGRD: ERROR unable to allocate "
6242                                "memory for hexdump\n");
6243         } else
6244                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6245                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6246                        "\n", _dump_buf_data);
6247         if (!_dump_buf_dif) {
6248                 while (pagecnt) {
6249                         _dump_buf_dif =
6250                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6251                         if (_dump_buf_dif) {
6252                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6253                                         "9046 BLKGRD: allocated %d pages for "
6254                                        "_dump_buf_dif at 0x%p\n",
6255                                        (1 << pagecnt), _dump_buf_dif);
6256                                 _dump_buf_dif_order = pagecnt;
6257                                 memset(_dump_buf_dif, 0,
6258                                        ((1 << PAGE_SHIFT) << pagecnt));
6259                                 break;
6260                         } else
6261                                 --pagecnt;
6262                 }
6263                 if (!_dump_buf_dif_order)
6264                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6265                         "9047 BLKGRD: ERROR unable to allocate "
6266                                "memory for hexdump\n");
6267         } else
6268                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6269                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6270                        _dump_buf_dif);
6271 }
6272
6273 /**
6274  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6275  * @phba: pointer to lpfc hba data structure.
6276  *
6277  * This routine is invoked to perform all the necessary post initialization
6278  * setup for the device.
6279  **/
6280 static void
6281 lpfc_post_init_setup(struct lpfc_hba *phba)
6282 {
6283         struct Scsi_Host  *shost;
6284         struct lpfc_adapter_event_header adapter_event;
6285
6286         /* Get the default values for Model Name and Description */
6287         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6288
6289         /*
6290          * hba setup may have changed the hba_queue_depth so we need to
6291          * adjust the value of can_queue.
6292          */
6293         shost = pci_get_drvdata(phba->pcidev);
6294         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6295         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6296                 lpfc_setup_bg(phba, shost);
6297
6298         lpfc_host_attrib_init(shost);
6299
6300         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6301                 spin_lock_irq(shost->host_lock);
6302                 lpfc_poll_start_timer(phba);
6303                 spin_unlock_irq(shost->host_lock);
6304         }
6305
6306         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6307                         "0428 Perform SCSI scan\n");
6308         /* Send board arrival event to upper layer */
6309         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6310         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6311         fc_host_post_vendor_event(shost, fc_get_event_number(),
6312                                   sizeof(adapter_event),
6313                                   (char *) &adapter_event,
6314                                   LPFC_NL_VENDOR_ID);
6315         return;
6316 }
6317
6318 /**
6319  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6320  * @phba: pointer to lpfc hba data structure.
6321  *
6322  * This routine is invoked to set up the PCI device memory space for device
6323  * with SLI-3 interface spec.
6324  *
6325  * Return codes
6326  *      0 - successful
6327  *      other values - error
6328  **/
6329 static int
6330 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6331 {
6332         struct pci_dev *pdev;
6333         unsigned long bar0map_len, bar2map_len;
6334         int i, hbq_count;
6335         void *ptr;
6336         int error = -ENODEV;
6337
6338         /* Obtain PCI device reference */
6339         if (!phba->pcidev)
6340                 return error;
6341         else
6342                 pdev = phba->pcidev;
6343
6344         /* Set the device DMA mask size */
6345         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6346          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6347                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6348                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6349                         return error;
6350                 }
6351         }
6352
6353         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6354          * required by each mapping.
6355          */
6356         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6357         bar0map_len = pci_resource_len(pdev, 0);
6358
6359         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6360         bar2map_len = pci_resource_len(pdev, 2);
6361
6362         /* Map HBA SLIM to a kernel virtual address. */
6363         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6364         if (!phba->slim_memmap_p) {
6365                 dev_printk(KERN_ERR, &pdev->dev,
6366                            "ioremap failed for SLIM memory.\n");
6367                 goto out;
6368         }
6369
6370         /* Map HBA Control Registers to a kernel virtual address. */
6371         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6372         if (!phba->ctrl_regs_memmap_p) {
6373                 dev_printk(KERN_ERR, &pdev->dev,
6374                            "ioremap failed for HBA control registers.\n");
6375                 goto out_iounmap_slim;
6376         }
6377
6378         /* Allocate memory for SLI-2 structures */
6379         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6380                                                 &phba->slim2p.phys, GFP_KERNEL);
6381         if (!phba->slim2p.virt)
6382                 goto out_iounmap;
6383
6384         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6385         phba->mbox_ext = (phba->slim2p.virt +
6386                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6387         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6388         phba->IOCBs = (phba->slim2p.virt +
6389                        offsetof(struct lpfc_sli2_slim, IOCBs));
6390
6391         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6392                                                  lpfc_sli_hbq_size(),
6393                                                  &phba->hbqslimp.phys,
6394                                                  GFP_KERNEL);
6395         if (!phba->hbqslimp.virt)
6396                 goto out_free_slim;
6397
6398         hbq_count = lpfc_sli_hbq_count();
6399         ptr = phba->hbqslimp.virt;
6400         for (i = 0; i < hbq_count; ++i) {
6401                 phba->hbqs[i].hbq_virt = ptr;
6402                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6403                 ptr += (lpfc_hbq_defs[i]->entry_count *
6404                         sizeof(struct lpfc_hbq_entry));
6405         }
6406         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6407         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6408
6409         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6410
6411         INIT_LIST_HEAD(&phba->rb_pend_list);
6412
6413         phba->MBslimaddr = phba->slim_memmap_p;
6414         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6415         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6416         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6417         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6418
6419         return 0;
6420
6421 out_free_slim:
6422         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6423                           phba->slim2p.virt, phba->slim2p.phys);
6424 out_iounmap:
6425         iounmap(phba->ctrl_regs_memmap_p);
6426 out_iounmap_slim:
6427         iounmap(phba->slim_memmap_p);
6428 out:
6429         return error;
6430 }
6431
6432 /**
6433  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6434  * @phba: pointer to lpfc hba data structure.
6435  *
6436  * This routine is invoked to unset the PCI device memory space for device
6437  * with SLI-3 interface spec.
6438  **/
6439 static void
6440 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6441 {
6442         struct pci_dev *pdev;
6443
6444         /* Obtain PCI device reference */
6445         if (!phba->pcidev)
6446                 return;
6447         else
6448                 pdev = phba->pcidev;
6449
6450         /* Free coherent DMA memory allocated */
6451         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6452                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6453         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6454                           phba->slim2p.virt, phba->slim2p.phys);
6455
6456         /* I/O memory unmap */
6457         iounmap(phba->ctrl_regs_memmap_p);
6458         iounmap(phba->slim_memmap_p);
6459
6460         return;
6461 }
6462
6463 /**
6464  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6465  * @phba: pointer to lpfc hba data structure.
6466  *
6467  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6468  * done and check status.
6469  *
6470  * Return 0 if successful, otherwise -ENODEV.
6471  **/
6472 int
6473 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6474 {
6475         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6476         struct lpfc_register reg_data;
6477         int i, port_error = 0;
6478         uint32_t if_type;
6479
6480         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6481         memset(&reg_data, 0, sizeof(reg_data));
6482         if (!phba->sli4_hba.PSMPHRregaddr)
6483                 return -ENODEV;
6484
6485         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6486         for (i = 0; i < 3000; i++) {
6487                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6488                         &portsmphr_reg.word0) ||
6489                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6490                         /* Port has a fatal POST error, break out */
6491                         port_error = -ENODEV;
6492                         break;
6493                 }
6494                 if (LPFC_POST_STAGE_PORT_READY ==
6495                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6496                         break;
6497                 msleep(10);
6498         }
6499
6500         /*
6501          * If there was a port error during POST, then don't proceed with
6502          * other register reads as the data may not be valid.  Just exit.
6503          */
6504         if (port_error) {
6505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6506                         "1408 Port Failed POST - portsmphr=0x%x, "
6507                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6508                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6509                         portsmphr_reg.word0,
6510                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6511                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6512                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6513                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6514                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6515                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6516                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6517                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6518         } else {
6519                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6520                                 "2534 Device Info: SLIFamily=0x%x, "
6521                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6522                                 "SLIHint_2=0x%x, FT=0x%x\n",
6523                                 bf_get(lpfc_sli_intf_sli_family,
6524                                        &phba->sli4_hba.sli_intf),
6525                                 bf_get(lpfc_sli_intf_slirev,
6526                                        &phba->sli4_hba.sli_intf),
6527                                 bf_get(lpfc_sli_intf_if_type,
6528                                        &phba->sli4_hba.sli_intf),
6529                                 bf_get(lpfc_sli_intf_sli_hint1,
6530                                        &phba->sli4_hba.sli_intf),
6531                                 bf_get(lpfc_sli_intf_sli_hint2,
6532                                        &phba->sli4_hba.sli_intf),
6533                                 bf_get(lpfc_sli_intf_func_type,
6534                                        &phba->sli4_hba.sli_intf));
6535                 /*
6536                  * Check for other Port errors during the initialization
6537                  * process.  Fail the load if the port did not come up
6538                  * correctly.
6539                  */
6540                 if_type = bf_get(lpfc_sli_intf_if_type,
6541                                  &phba->sli4_hba.sli_intf);
6542                 switch (if_type) {
6543                 case LPFC_SLI_INTF_IF_TYPE_0:
6544                         phba->sli4_hba.ue_mask_lo =
6545                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6546                         phba->sli4_hba.ue_mask_hi =
6547                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6548                         uerrlo_reg.word0 =
6549                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6550                         uerrhi_reg.word0 =
6551                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6552                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6553                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6554                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6555                                                 "1422 Unrecoverable Error "
6556                                                 "Detected during POST "
6557                                                 "uerr_lo_reg=0x%x, "
6558                                                 "uerr_hi_reg=0x%x, "
6559                                                 "ue_mask_lo_reg=0x%x, "
6560                                                 "ue_mask_hi_reg=0x%x\n",
6561                                                 uerrlo_reg.word0,
6562                                                 uerrhi_reg.word0,
6563                                                 phba->sli4_hba.ue_mask_lo,
6564                                                 phba->sli4_hba.ue_mask_hi);
6565                                 port_error = -ENODEV;
6566                         }
6567                         break;
6568                 case LPFC_SLI_INTF_IF_TYPE_2:
6569                         /* Final checks.  The port status should be clean. */
6570                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6571                                 &reg_data.word0) ||
6572                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6573                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6574                                 phba->work_status[0] =
6575                                         readl(phba->sli4_hba.u.if_type2.
6576                                               ERR1regaddr);
6577                                 phba->work_status[1] =
6578                                         readl(phba->sli4_hba.u.if_type2.
6579                                               ERR2regaddr);
6580                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6581                                         "2888 Unrecoverable port error "
6582                                         "following POST: port status reg "
6583                                         "0x%x, port_smphr reg 0x%x, "
6584                                         "error 1=0x%x, error 2=0x%x\n",
6585                                         reg_data.word0,
6586                                         portsmphr_reg.word0,
6587                                         phba->work_status[0],
6588                                         phba->work_status[1]);
6589                                 port_error = -ENODEV;
6590                         }
6591                         break;
6592                 case LPFC_SLI_INTF_IF_TYPE_1:
6593                 default:
6594                         break;
6595                 }
6596         }
6597         return port_error;
6598 }
6599
6600 /**
6601  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6602  * @phba: pointer to lpfc hba data structure.
6603  * @if_type:  The SLI4 interface type getting configured.
6604  *
6605  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6606  * memory map.
6607  **/
6608 static void
6609 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6610 {
6611         switch (if_type) {
6612         case LPFC_SLI_INTF_IF_TYPE_0:
6613                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6614                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6615                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6616                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6617                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6618                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6619                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6620                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6621                 phba->sli4_hba.SLIINTFregaddr =
6622                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6623                 break;
6624         case LPFC_SLI_INTF_IF_TYPE_2:
6625                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6626                         phba->sli4_hba.conf_regs_memmap_p +
6627                                                 LPFC_CTL_PORT_ER1_OFFSET;
6628                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6629                         phba->sli4_hba.conf_regs_memmap_p +
6630                                                 LPFC_CTL_PORT_ER2_OFFSET;
6631                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6632                         phba->sli4_hba.conf_regs_memmap_p +
6633                                                 LPFC_CTL_PORT_CTL_OFFSET;
6634                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6635                         phba->sli4_hba.conf_regs_memmap_p +
6636                                                 LPFC_CTL_PORT_STA_OFFSET;
6637                 phba->sli4_hba.SLIINTFregaddr =
6638                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6639                 phba->sli4_hba.PSMPHRregaddr =
6640                         phba->sli4_hba.conf_regs_memmap_p +
6641                                                 LPFC_CTL_PORT_SEM_OFFSET;
6642                 phba->sli4_hba.RQDBregaddr =
6643                         phba->sli4_hba.conf_regs_memmap_p +
6644                                                 LPFC_ULP0_RQ_DOORBELL;
6645                 phba->sli4_hba.WQDBregaddr =
6646                         phba->sli4_hba.conf_regs_memmap_p +
6647                                                 LPFC_ULP0_WQ_DOORBELL;
6648                 phba->sli4_hba.EQCQDBregaddr =
6649                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6650                 phba->sli4_hba.MQDBregaddr =
6651                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6652                 phba->sli4_hba.BMBXregaddr =
6653                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6654                 break;
6655         case LPFC_SLI_INTF_IF_TYPE_1:
6656         default:
6657                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6658                            "FATAL - unsupported SLI4 interface type - %d\n",
6659                            if_type);
6660                 break;
6661         }
6662 }
6663
6664 /**
6665  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6666  * @phba: pointer to lpfc hba data structure.
6667  *
6668  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6669  * memory map.
6670  **/
6671 static void
6672 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6673 {
6674         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6675                 LPFC_SLIPORT_IF0_SMPHR;
6676         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6677                 LPFC_HST_ISR0;
6678         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6679                 LPFC_HST_IMR0;
6680         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6681                 LPFC_HST_ISCR0;
6682 }
6683
6684 /**
6685  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6686  * @phba: pointer to lpfc hba data structure.
6687  * @vf: virtual function number
6688  *
6689  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6690  * based on the given viftual function number, @vf.
6691  *
6692  * Return 0 if successful, otherwise -ENODEV.
6693  **/
6694 static int
6695 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6696 {
6697         if (vf > LPFC_VIR_FUNC_MAX)
6698                 return -ENODEV;
6699
6700         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6701                                 vf * LPFC_VFR_PAGE_SIZE +
6702                                         LPFC_ULP0_RQ_DOORBELL);
6703         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6704                                 vf * LPFC_VFR_PAGE_SIZE +
6705                                         LPFC_ULP0_WQ_DOORBELL);
6706         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6707                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6708         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6709                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6710         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6711                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6712         return 0;
6713 }
6714
6715 /**
6716  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6717  * @phba: pointer to lpfc hba data structure.
6718  *
6719  * This routine is invoked to create the bootstrap mailbox
6720  * region consistent with the SLI-4 interface spec.  This
6721  * routine allocates all memory necessary to communicate
6722  * mailbox commands to the port and sets up all alignment
6723  * needs.  No locks are expected to be held when calling
6724  * this routine.
6725  *
6726  * Return codes
6727  *      0 - successful
6728  *      -ENOMEM - could not allocated memory.
6729  **/
6730 static int
6731 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6732 {
6733         uint32_t bmbx_size;
6734         struct lpfc_dmabuf *dmabuf;
6735         struct dma_address *dma_address;
6736         uint32_t pa_addr;
6737         uint64_t phys_addr;
6738
6739         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6740         if (!dmabuf)
6741                 return -ENOMEM;
6742
6743         /*
6744          * The bootstrap mailbox region is comprised of 2 parts
6745          * plus an alignment restriction of 16 bytes.
6746          */
6747         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6748         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6749                                            &dmabuf->phys, GFP_KERNEL);
6750         if (!dmabuf->virt) {
6751                 kfree(dmabuf);
6752                 return -ENOMEM;
6753         }
6754
6755         /*
6756          * Initialize the bootstrap mailbox pointers now so that the register
6757          * operations are simple later.  The mailbox dma address is required
6758          * to be 16-byte aligned.  Also align the virtual memory as each
6759          * maibox is copied into the bmbx mailbox region before issuing the
6760          * command to the port.
6761          */
6762         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6763         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6764
6765         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6766                                               LPFC_ALIGN_16_BYTE);
6767         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6768                                               LPFC_ALIGN_16_BYTE);
6769
6770         /*
6771          * Set the high and low physical addresses now.  The SLI4 alignment
6772          * requirement is 16 bytes and the mailbox is posted to the port
6773          * as two 30-bit addresses.  The other data is a bit marking whether
6774          * the 30-bit address is the high or low address.
6775          * Upcast bmbx aphys to 64bits so shift instruction compiles
6776          * clean on 32 bit machines.
6777          */
6778         dma_address = &phba->sli4_hba.bmbx.dma_address;
6779         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6780         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6781         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6782                                            LPFC_BMBX_BIT1_ADDR_HI);
6783
6784         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6785         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6786                                            LPFC_BMBX_BIT1_ADDR_LO);
6787         return 0;
6788 }
6789
6790 /**
6791  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6792  * @phba: pointer to lpfc hba data structure.
6793  *
6794  * This routine is invoked to teardown the bootstrap mailbox
6795  * region and release all host resources. This routine requires
6796  * the caller to ensure all mailbox commands recovered, no
6797  * additional mailbox comands are sent, and interrupts are disabled
6798  * before calling this routine.
6799  *
6800  **/
6801 static void
6802 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6803 {
6804         dma_free_coherent(&phba->pcidev->dev,
6805                           phba->sli4_hba.bmbx.bmbx_size,
6806                           phba->sli4_hba.bmbx.dmabuf->virt,
6807                           phba->sli4_hba.bmbx.dmabuf->phys);
6808
6809         kfree(phba->sli4_hba.bmbx.dmabuf);
6810         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6811 }
6812
6813 /**
6814  * lpfc_sli4_read_config - Get the config parameters.
6815  * @phba: pointer to lpfc hba data structure.
6816  *
6817  * This routine is invoked to read the configuration parameters from the HBA.
6818  * The configuration parameters are used to set the base and maximum values
6819  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6820  * allocation for the port.
6821  *
6822  * Return codes
6823  *      0 - successful
6824  *      -ENOMEM - No available memory
6825  *      -EIO - The mailbox failed to complete successfully.
6826  **/
6827 int
6828 lpfc_sli4_read_config(struct lpfc_hba *phba)
6829 {
6830         LPFC_MBOXQ_t *pmb;
6831         struct lpfc_mbx_read_config *rd_config;
6832         union  lpfc_sli4_cfg_shdr *shdr;
6833         uint32_t shdr_status, shdr_add_status;
6834         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6835         struct lpfc_rsrc_desc_fcfcoe *desc;
6836         char *pdesc_0;
6837         int length, i, rc = 0, rc2;
6838
6839         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6840         if (!pmb) {
6841                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6842                                 "2011 Unable to allocate memory for issuing "
6843                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6844                 return -ENOMEM;
6845         }
6846
6847         lpfc_read_config(phba, pmb);
6848
6849         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6850         if (rc != MBX_SUCCESS) {
6851                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6852                         "2012 Mailbox failed , mbxCmd x%x "
6853                         "READ_CONFIG, mbxStatus x%x\n",
6854                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6855                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6856                 rc = -EIO;
6857         } else {
6858                 rd_config = &pmb->u.mqe.un.rd_config;
6859                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6860                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6861                         phba->sli4_hba.lnk_info.lnk_tp =
6862                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6863                         phba->sli4_hba.lnk_info.lnk_no =
6864                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6865                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6866                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6867                                         phba->sli4_hba.lnk_info.lnk_tp,
6868                                         phba->sli4_hba.lnk_info.lnk_no);
6869                 } else
6870                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6871                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6872                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6873                 phba->sli4_hba.extents_in_use =
6874                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6875                 phba->sli4_hba.max_cfg_param.max_xri =
6876                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6877                 phba->sli4_hba.max_cfg_param.xri_base =
6878                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6879                 phba->sli4_hba.max_cfg_param.max_vpi =
6880                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6881                 phba->sli4_hba.max_cfg_param.vpi_base =
6882                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6883                 phba->sli4_hba.max_cfg_param.max_rpi =
6884                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6885                 phba->sli4_hba.max_cfg_param.rpi_base =
6886                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6887                 phba->sli4_hba.max_cfg_param.max_vfi =
6888                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6889                 phba->sli4_hba.max_cfg_param.vfi_base =
6890                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6891                 phba->sli4_hba.max_cfg_param.max_fcfi =
6892                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6893                 phba->sli4_hba.max_cfg_param.max_eq =
6894                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6895                 phba->sli4_hba.max_cfg_param.max_rq =
6896                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6897                 phba->sli4_hba.max_cfg_param.max_wq =
6898                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6899                 phba->sli4_hba.max_cfg_param.max_cq =
6900                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6901                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6902                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6903                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6904                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6905                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6906                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6907                 phba->max_vports = phba->max_vpi;
6908                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6909                                 "2003 cfg params Extents? %d "
6910                                 "XRI(B:%d M:%d), "
6911                                 "VPI(B:%d M:%d) "
6912                                 "VFI(B:%d M:%d) "
6913                                 "RPI(B:%d M:%d) "
6914                                 "FCFI(Count:%d)\n",
6915                                 phba->sli4_hba.extents_in_use,
6916                                 phba->sli4_hba.max_cfg_param.xri_base,
6917                                 phba->sli4_hba.max_cfg_param.max_xri,
6918                                 phba->sli4_hba.max_cfg_param.vpi_base,
6919                                 phba->sli4_hba.max_cfg_param.max_vpi,
6920                                 phba->sli4_hba.max_cfg_param.vfi_base,
6921                                 phba->sli4_hba.max_cfg_param.max_vfi,
6922                                 phba->sli4_hba.max_cfg_param.rpi_base,
6923                                 phba->sli4_hba.max_cfg_param.max_rpi,
6924                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6925         }
6926
6927         if (rc)
6928                 goto read_cfg_out;
6929
6930         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6931         length = phba->sli4_hba.max_cfg_param.max_xri -
6932                         lpfc_sli4_get_els_iocb_cnt(phba);
6933         if (phba->cfg_hba_queue_depth > length) {
6934                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6935                                 "3361 HBA queue depth changed from %d to %d\n",
6936                                 phba->cfg_hba_queue_depth, length);
6937                 phba->cfg_hba_queue_depth = length;
6938         }
6939
6940         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6941             LPFC_SLI_INTF_IF_TYPE_2)
6942                 goto read_cfg_out;
6943
6944         /* get the pf# and vf# for SLI4 if_type 2 port */
6945         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6946                   sizeof(struct lpfc_sli4_cfg_mhdr));
6947         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6948                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6949                          length, LPFC_SLI4_MBX_EMBED);
6950
6951         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6952         shdr = (union lpfc_sli4_cfg_shdr *)
6953                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6954         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6955         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6956         if (rc2 || shdr_status || shdr_add_status) {
6957                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6958                                 "3026 Mailbox failed , mbxCmd x%x "
6959                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6960                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6961                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6962                 goto read_cfg_out;
6963         }
6964
6965         /* search for fc_fcoe resrouce descriptor */
6966         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6967
6968         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6969         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6970         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6971         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6972                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6973         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6974                 goto read_cfg_out;
6975
6976         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6977                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6978                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6979                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6980                         phba->sli4_hba.iov.pf_number =
6981                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6982                         phba->sli4_hba.iov.vf_number =
6983                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6984                         break;
6985                 }
6986         }
6987
6988         if (i < LPFC_RSRC_DESC_MAX_NUM)
6989                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6990                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6991                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6992                                 phba->sli4_hba.iov.vf_number);
6993         else
6994                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6995                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6996                                 "Resrouce Descriptor:x%x\n",
6997                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6998
6999 read_cfg_out:
7000         mempool_free(pmb, phba->mbox_mem_pool);
7001         return rc;
7002 }
7003
7004 /**
7005  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7006  * @phba: pointer to lpfc hba data structure.
7007  *
7008  * This routine is invoked to setup the port-side endian order when
7009  * the port if_type is 0.  This routine has no function for other
7010  * if_types.
7011  *
7012  * Return codes
7013  *      0 - successful
7014  *      -ENOMEM - No available memory
7015  *      -EIO - The mailbox failed to complete successfully.
7016  **/
7017 static int
7018 lpfc_setup_endian_order(struct lpfc_hba *phba)
7019 {
7020         LPFC_MBOXQ_t *mboxq;
7021         uint32_t if_type, rc = 0;
7022         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7023                                       HOST_ENDIAN_HIGH_WORD1};
7024
7025         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7026         switch (if_type) {
7027         case LPFC_SLI_INTF_IF_TYPE_0:
7028                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7029                                                        GFP_KERNEL);
7030                 if (!mboxq) {
7031                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7032                                         "0492 Unable to allocate memory for "
7033                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7034                                         "command\n");
7035                         return -ENOMEM;
7036                 }
7037
7038                 /*
7039                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7040                  * two words to contain special data values and no other data.
7041                  */
7042                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7043                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7044                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7045                 if (rc != MBX_SUCCESS) {
7046                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7047                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7048                                         "failed with status x%x\n",
7049                                         rc);
7050                         rc = -EIO;
7051                 }
7052                 mempool_free(mboxq, phba->mbox_mem_pool);
7053                 break;
7054         case LPFC_SLI_INTF_IF_TYPE_2:
7055         case LPFC_SLI_INTF_IF_TYPE_1:
7056         default:
7057                 break;
7058         }
7059         return rc;
7060 }
7061
7062 /**
7063  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7064  * @phba: pointer to lpfc hba data structure.
7065  *
7066  * This routine is invoked to check the user settable queue counts for EQs and
7067  * CQs. after this routine is called the counts will be set to valid values that
7068  * adhere to the constraints of the system's interrupt vectors and the port's
7069  * queue resources.
7070  *
7071  * Return codes
7072  *      0 - successful
7073  *      -ENOMEM - No available memory
7074  **/
7075 static int
7076 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7077 {
7078         int cfg_fcp_io_channel;
7079         uint32_t cpu;
7080         uint32_t i = 0;
7081         int fof_vectors = phba->cfg_fof ? 1 : 0;
7082
7083         /*
7084          * Sanity check for configured queue parameters against the run-time
7085          * device parameters
7086          */
7087
7088         /* Sanity check on HBA EQ parameters */
7089         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7090
7091         /* It doesn't make sense to have more io channels then online CPUs */
7092         for_each_present_cpu(cpu) {
7093                 if (cpu_online(cpu))
7094                         i++;
7095         }
7096         phba->sli4_hba.num_online_cpu = i;
7097         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7098         phba->sli4_hba.curr_disp_cpu = 0;
7099
7100         if (i < cfg_fcp_io_channel) {
7101                 lpfc_printf_log(phba,
7102                                 KERN_ERR, LOG_INIT,
7103                                 "3188 Reducing IO channels to match number of "
7104                                 "online CPUs: from %d to %d\n",
7105                                 cfg_fcp_io_channel, i);
7106                 cfg_fcp_io_channel = i;
7107         }
7108
7109         if (cfg_fcp_io_channel + fof_vectors >
7110             phba->sli4_hba.max_cfg_param.max_eq) {
7111                 if (phba->sli4_hba.max_cfg_param.max_eq <
7112                     LPFC_FCP_IO_CHAN_MIN) {
7113                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7114                                         "2574 Not enough EQs (%d) from the "
7115                                         "pci function for supporting FCP "
7116                                         "EQs (%d)\n",
7117                                         phba->sli4_hba.max_cfg_param.max_eq,
7118                                         phba->cfg_fcp_io_channel);
7119                         goto out_error;
7120                 }
7121                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7122                                 "2575 Reducing IO channels to match number of "
7123                                 "available EQs: from %d to %d\n",
7124                                 cfg_fcp_io_channel,
7125                                 phba->sli4_hba.max_cfg_param.max_eq);
7126                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7127                         fof_vectors;
7128         }
7129
7130         /* The actual number of FCP event queues adopted */
7131         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7132
7133         /* Get EQ depth from module parameter, fake the default for now */
7134         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7135         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7136
7137         /* Get CQ depth from module parameter, fake the default for now */
7138         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7139         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7140
7141         return 0;
7142 out_error:
7143         return -ENOMEM;
7144 }
7145
7146 /**
7147  * lpfc_sli4_queue_create - Create all the SLI4 queues
7148  * @phba: pointer to lpfc hba data structure.
7149  *
7150  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7151  * operation. For each SLI4 queue type, the parameters such as queue entry
7152  * count (queue depth) shall be taken from the module parameter. For now,
7153  * we just use some constant number as place holder.
7154  *
7155  * Return codes
7156  *      0 - successful
7157  *      -ENOMEM - No availble memory
7158  *      -EIO - The mailbox failed to complete successfully.
7159  **/
7160 int
7161 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7162 {
7163         struct lpfc_queue *qdesc;
7164         int idx;
7165
7166         /*
7167          * Create HBA Record arrays.
7168          */
7169         if (!phba->cfg_fcp_io_channel)
7170                 return -ERANGE;
7171
7172         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7173         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7174         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7175         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7176         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7177         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7178
7179         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7180                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7181         if (!phba->sli4_hba.hba_eq) {
7182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7183                         "2576 Failed allocate memory for "
7184                         "fast-path EQ record array\n");
7185                 goto out_error;
7186         }
7187
7188         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7189                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7190         if (!phba->sli4_hba.fcp_cq) {
7191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7192                                 "2577 Failed allocate memory for fast-path "
7193                                 "CQ record array\n");
7194                 goto out_error;
7195         }
7196
7197         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7198                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7199         if (!phba->sli4_hba.fcp_wq) {
7200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201                                 "2578 Failed allocate memory for fast-path "
7202                                 "WQ record array\n");
7203                 goto out_error;
7204         }
7205
7206         /*
7207          * Since the first EQ can have multiple CQs associated with it,
7208          * this array is used to quickly see if we have a FCP fast-path
7209          * CQ match.
7210          */
7211         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7212                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7213         if (!phba->sli4_hba.fcp_cq_map) {
7214                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7215                                 "2545 Failed allocate memory for fast-path "
7216                                 "CQ map\n");
7217                 goto out_error;
7218         }
7219
7220         /*
7221          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7222          * how many EQs to create.
7223          */
7224         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7225
7226                 /* Create EQs */
7227                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7228                                               phba->sli4_hba.eq_ecount);
7229                 if (!qdesc) {
7230                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7231                                         "0497 Failed allocate EQ (%d)\n", idx);
7232                         goto out_error;
7233                 }
7234                 phba->sli4_hba.hba_eq[idx] = qdesc;
7235
7236                 /* Create Fast Path FCP CQs */
7237                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7238                                               phba->sli4_hba.cq_ecount);
7239                 if (!qdesc) {
7240                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7241                                         "0499 Failed allocate fast-path FCP "
7242                                         "CQ (%d)\n", idx);
7243                         goto out_error;
7244                 }
7245                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7246
7247                 /* Create Fast Path FCP WQs */
7248                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7249                                               phba->sli4_hba.wq_ecount);
7250                 if (!qdesc) {
7251                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7252                                         "0503 Failed allocate fast-path FCP "
7253                                         "WQ (%d)\n", idx);
7254                         goto out_error;
7255                 }
7256                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7257         }
7258
7259
7260         /*
7261          * Create Slow Path Completion Queues (CQs)
7262          */
7263
7264         /* Create slow-path Mailbox Command Complete Queue */
7265         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7266                                       phba->sli4_hba.cq_ecount);
7267         if (!qdesc) {
7268                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7269                                 "0500 Failed allocate slow-path mailbox CQ\n");
7270                 goto out_error;
7271         }
7272         phba->sli4_hba.mbx_cq = qdesc;
7273
7274         /* Create slow-path ELS Complete Queue */
7275         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7276                                       phba->sli4_hba.cq_ecount);
7277         if (!qdesc) {
7278                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7279                                 "0501 Failed allocate slow-path ELS CQ\n");
7280                 goto out_error;
7281         }
7282         phba->sli4_hba.els_cq = qdesc;
7283
7284
7285         /*
7286          * Create Slow Path Work Queues (WQs)
7287          */
7288
7289         /* Create Mailbox Command Queue */
7290
7291         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7292                                       phba->sli4_hba.mq_ecount);
7293         if (!qdesc) {
7294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7295                                 "0505 Failed allocate slow-path MQ\n");
7296                 goto out_error;
7297         }
7298         phba->sli4_hba.mbx_wq = qdesc;
7299
7300         /*
7301          * Create ELS Work Queues
7302          */
7303
7304         /* Create slow-path ELS Work Queue */
7305         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7306                                       phba->sli4_hba.wq_ecount);
7307         if (!qdesc) {
7308                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7309                                 "0504 Failed allocate slow-path ELS WQ\n");
7310                 goto out_error;
7311         }
7312         phba->sli4_hba.els_wq = qdesc;
7313
7314         /*
7315          * Create Receive Queue (RQ)
7316          */
7317
7318         /* Create Receive Queue for header */
7319         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7320                                       phba->sli4_hba.rq_ecount);
7321         if (!qdesc) {
7322                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7323                                 "0506 Failed allocate receive HRQ\n");
7324                 goto out_error;
7325         }
7326         phba->sli4_hba.hdr_rq = qdesc;
7327
7328         /* Create Receive Queue for data */
7329         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7330                                       phba->sli4_hba.rq_ecount);
7331         if (!qdesc) {
7332                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7333                                 "0507 Failed allocate receive DRQ\n");
7334                 goto out_error;
7335         }
7336         phba->sli4_hba.dat_rq = qdesc;
7337
7338         /* Create the Queues needed for Flash Optimized Fabric operations */
7339         if (phba->cfg_fof)
7340                 lpfc_fof_queue_create(phba);
7341         return 0;
7342
7343 out_error:
7344         lpfc_sli4_queue_destroy(phba);
7345         return -ENOMEM;
7346 }
7347
7348 /**
7349  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7350  * @phba: pointer to lpfc hba data structure.
7351  *
7352  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7353  * operation.
7354  *
7355  * Return codes
7356  *      0 - successful
7357  *      -ENOMEM - No available memory
7358  *      -EIO - The mailbox failed to complete successfully.
7359  **/
7360 void
7361 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7362 {
7363         int idx;
7364
7365         if (phba->cfg_fof)
7366                 lpfc_fof_queue_destroy(phba);
7367
7368         if (phba->sli4_hba.hba_eq != NULL) {
7369                 /* Release HBA event queue */
7370                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7371                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7372                                 lpfc_sli4_queue_free(
7373                                         phba->sli4_hba.hba_eq[idx]);
7374                                 phba->sli4_hba.hba_eq[idx] = NULL;
7375                         }
7376                 }
7377                 kfree(phba->sli4_hba.hba_eq);
7378                 phba->sli4_hba.hba_eq = NULL;
7379         }
7380
7381         if (phba->sli4_hba.fcp_cq != NULL) {
7382                 /* Release FCP completion queue */
7383                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7384                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7385                                 lpfc_sli4_queue_free(
7386                                         phba->sli4_hba.fcp_cq[idx]);
7387                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7388                         }
7389                 }
7390                 kfree(phba->sli4_hba.fcp_cq);
7391                 phba->sli4_hba.fcp_cq = NULL;
7392         }
7393
7394         if (phba->sli4_hba.fcp_wq != NULL) {
7395                 /* Release FCP work queue */
7396                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7397                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7398                                 lpfc_sli4_queue_free(
7399                                         phba->sli4_hba.fcp_wq[idx]);
7400                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7401                         }
7402                 }
7403                 kfree(phba->sli4_hba.fcp_wq);
7404                 phba->sli4_hba.fcp_wq = NULL;
7405         }
7406
7407         /* Release FCP CQ mapping array */
7408         if (phba->sli4_hba.fcp_cq_map != NULL) {
7409                 kfree(phba->sli4_hba.fcp_cq_map);
7410                 phba->sli4_hba.fcp_cq_map = NULL;
7411         }
7412
7413         /* Release mailbox command work queue */
7414         if (phba->sli4_hba.mbx_wq != NULL) {
7415                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7416                 phba->sli4_hba.mbx_wq = NULL;
7417         }
7418
7419         /* Release ELS work queue */
7420         if (phba->sli4_hba.els_wq != NULL) {
7421                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7422                 phba->sli4_hba.els_wq = NULL;
7423         }
7424
7425         /* Release unsolicited receive queue */
7426         if (phba->sli4_hba.hdr_rq != NULL) {
7427                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7428                 phba->sli4_hba.hdr_rq = NULL;
7429         }
7430         if (phba->sli4_hba.dat_rq != NULL) {
7431                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7432                 phba->sli4_hba.dat_rq = NULL;
7433         }
7434
7435         /* Release ELS complete queue */
7436         if (phba->sli4_hba.els_cq != NULL) {
7437                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7438                 phba->sli4_hba.els_cq = NULL;
7439         }
7440
7441         /* Release mailbox command complete queue */
7442         if (phba->sli4_hba.mbx_cq != NULL) {
7443                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7444                 phba->sli4_hba.mbx_cq = NULL;
7445         }
7446
7447         return;
7448 }
7449
7450 /**
7451  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7452  * @phba: pointer to lpfc hba data structure.
7453  *
7454  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7455  * operation.
7456  *
7457  * Return codes
7458  *      0 - successful
7459  *      -ENOMEM - No available memory
7460  *      -EIO - The mailbox failed to complete successfully.
7461  **/
7462 int
7463 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7464 {
7465         struct lpfc_sli *psli = &phba->sli;
7466         struct lpfc_sli_ring *pring;
7467         int rc = -ENOMEM;
7468         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7469         int fcp_cq_index = 0;
7470         uint32_t shdr_status, shdr_add_status;
7471         union lpfc_sli4_cfg_shdr *shdr;
7472         LPFC_MBOXQ_t *mboxq;
7473         uint32_t length;
7474
7475         /* Check for dual-ULP support */
7476         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7477         if (!mboxq) {
7478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7479                                 "3249 Unable to allocate memory for "
7480                                 "QUERY_FW_CFG mailbox command\n");
7481                 return -ENOMEM;
7482         }
7483         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7484                   sizeof(struct lpfc_sli4_cfg_mhdr));
7485         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7486                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7487                          length, LPFC_SLI4_MBX_EMBED);
7488
7489         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7490
7491         shdr = (union lpfc_sli4_cfg_shdr *)
7492                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7493         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7494         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7495         if (shdr_status || shdr_add_status || rc) {
7496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7497                                 "3250 QUERY_FW_CFG mailbox failed with status "
7498                                 "x%x add_status x%x, mbx status x%x\n",
7499                                 shdr_status, shdr_add_status, rc);
7500                 if (rc != MBX_TIMEOUT)
7501                         mempool_free(mboxq, phba->mbox_mem_pool);
7502                 rc = -ENXIO;
7503                 goto out_error;
7504         }
7505
7506         phba->sli4_hba.fw_func_mode =
7507                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7508         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7509         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7510         phba->sli4_hba.physical_port =
7511                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7512         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7513                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7514                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7515                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7516
7517         if (rc != MBX_TIMEOUT)
7518                 mempool_free(mboxq, phba->mbox_mem_pool);
7519
7520         /*
7521          * Set up HBA Event Queues (EQs)
7522          */
7523
7524         /* Set up HBA event queue */
7525         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7526                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7527                                 "3147 Fast-path EQs not allocated\n");
7528                 rc = -ENOMEM;
7529                 goto out_error;
7530         }
7531         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7532                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7533                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7534                                         "0522 Fast-path EQ (%d) not "
7535                                         "allocated\n", fcp_eqidx);
7536                         rc = -ENOMEM;
7537                         goto out_destroy_hba_eq;
7538                 }
7539                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7540                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7541                 if (rc) {
7542                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543                                         "0523 Failed setup of fast-path EQ "
7544                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7545                                         (uint32_t)rc);
7546                         goto out_destroy_hba_eq;
7547                 }
7548                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7549                                 "2584 HBA EQ setup: "
7550                                 "queue[%d]-id=%d\n", fcp_eqidx,
7551                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7552         }
7553
7554         /* Set up fast-path FCP Response Complete Queue */
7555         if (!phba->sli4_hba.fcp_cq) {
7556                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7557                                 "3148 Fast-path FCP CQ array not "
7558                                 "allocated\n");
7559                 rc = -ENOMEM;
7560                 goto out_destroy_hba_eq;
7561         }
7562
7563         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7564                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7565                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7566                                         "0526 Fast-path FCP CQ (%d) not "
7567                                         "allocated\n", fcp_cqidx);
7568                         rc = -ENOMEM;
7569                         goto out_destroy_fcp_cq;
7570                 }
7571                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7572                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7573                 if (rc) {
7574                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7575                                         "0527 Failed setup of fast-path FCP "
7576                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7577                                         (uint32_t)rc);
7578                         goto out_destroy_fcp_cq;
7579                 }
7580
7581                 /* Setup fcp_cq_map for fast lookup */
7582                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7583                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7584
7585                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7586                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7587                                 "parent seq[%d]-id=%d\n",
7588                                 fcp_cqidx,
7589                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7590                                 fcp_cqidx,
7591                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7592         }
7593
7594         /* Set up fast-path FCP Work Queue */
7595         if (!phba->sli4_hba.fcp_wq) {
7596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7597                                 "3149 Fast-path FCP WQ array not "
7598                                 "allocated\n");
7599                 rc = -ENOMEM;
7600                 goto out_destroy_fcp_cq;
7601         }
7602
7603         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7604                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7605                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7606                                         "0534 Fast-path FCP WQ (%d) not "
7607                                         "allocated\n", fcp_wqidx);
7608                         rc = -ENOMEM;
7609                         goto out_destroy_fcp_wq;
7610                 }
7611                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7612                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7613                                     LPFC_FCP);
7614                 if (rc) {
7615                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7616                                         "0535 Failed setup of fast-path FCP "
7617                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7618                                         (uint32_t)rc);
7619                         goto out_destroy_fcp_wq;
7620                 }
7621
7622                 /* Bind this WQ to the next FCP ring */
7623                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7624                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7625                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7626
7627                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7628                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7629                                 "parent cq[%d]-id=%d\n",
7630                                 fcp_wqidx,
7631                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7632                                 fcp_cq_index,
7633                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7634         }
7635         /*
7636          * Set up Complete Queues (CQs)
7637          */
7638
7639         /* Set up slow-path MBOX Complete Queue as the first CQ */
7640         if (!phba->sli4_hba.mbx_cq) {
7641                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7642                                 "0528 Mailbox CQ not allocated\n");
7643                 rc = -ENOMEM;
7644                 goto out_destroy_fcp_wq;
7645         }
7646         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7647                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7648         if (rc) {
7649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7650                                 "0529 Failed setup of slow-path mailbox CQ: "
7651                                 "rc = 0x%x\n", (uint32_t)rc);
7652                 goto out_destroy_fcp_wq;
7653         }
7654         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7655                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7656                         phba->sli4_hba.mbx_cq->queue_id,
7657                         phba->sli4_hba.hba_eq[0]->queue_id);
7658
7659         /* Set up slow-path ELS Complete Queue */
7660         if (!phba->sli4_hba.els_cq) {
7661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7662                                 "0530 ELS CQ not allocated\n");
7663                 rc = -ENOMEM;
7664                 goto out_destroy_mbx_cq;
7665         }
7666         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7667                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7668         if (rc) {
7669                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7670                                 "0531 Failed setup of slow-path ELS CQ: "
7671                                 "rc = 0x%x\n", (uint32_t)rc);
7672                 goto out_destroy_mbx_cq;
7673         }
7674         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7675                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7676                         phba->sli4_hba.els_cq->queue_id,
7677                         phba->sli4_hba.hba_eq[0]->queue_id);
7678
7679         /*
7680          * Set up all the Work Queues (WQs)
7681          */
7682
7683         /* Set up Mailbox Command Queue */
7684         if (!phba->sli4_hba.mbx_wq) {
7685                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686                                 "0538 Slow-path MQ not allocated\n");
7687                 rc = -ENOMEM;
7688                 goto out_destroy_els_cq;
7689         }
7690         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7691                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7692         if (rc) {
7693                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7694                                 "0539 Failed setup of slow-path MQ: "
7695                                 "rc = 0x%x\n", rc);
7696                 goto out_destroy_els_cq;
7697         }
7698         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7699                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7700                         phba->sli4_hba.mbx_wq->queue_id,
7701                         phba->sli4_hba.mbx_cq->queue_id);
7702
7703         /* Set up slow-path ELS Work Queue */
7704         if (!phba->sli4_hba.els_wq) {
7705                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7706                                 "0536 Slow-path ELS WQ not allocated\n");
7707                 rc = -ENOMEM;
7708                 goto out_destroy_mbx_wq;
7709         }
7710         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7711                             phba->sli4_hba.els_cq, LPFC_ELS);
7712         if (rc) {
7713                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714                                 "0537 Failed setup of slow-path ELS WQ: "
7715                                 "rc = 0x%x\n", (uint32_t)rc);
7716                 goto out_destroy_mbx_wq;
7717         }
7718
7719         /* Bind this WQ to the ELS ring */
7720         pring = &psli->ring[LPFC_ELS_RING];
7721         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7722         phba->sli4_hba.els_cq->pring = pring;
7723
7724         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7725                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7726                         phba->sli4_hba.els_wq->queue_id,
7727                         phba->sli4_hba.els_cq->queue_id);
7728
7729         /*
7730          * Create Receive Queue (RQ)
7731          */
7732         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7733                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7734                                 "0540 Receive Queue not allocated\n");
7735                 rc = -ENOMEM;
7736                 goto out_destroy_els_wq;
7737         }
7738
7739         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7740         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7741
7742         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7743                             phba->sli4_hba.els_cq, LPFC_USOL);
7744         if (rc) {
7745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7746                                 "0541 Failed setup of Receive Queue: "
7747                                 "rc = 0x%x\n", (uint32_t)rc);
7748                 goto out_destroy_fcp_wq;
7749         }
7750
7751         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7752                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7753                         "parent cq-id=%d\n",
7754                         phba->sli4_hba.hdr_rq->queue_id,
7755                         phba->sli4_hba.dat_rq->queue_id,
7756                         phba->sli4_hba.els_cq->queue_id);
7757
7758         if (phba->cfg_fof) {
7759                 rc = lpfc_fof_queue_setup(phba);
7760                 if (rc) {
7761                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7762                                         "0549 Failed setup of FOF Queues: "
7763                                         "rc = 0x%x\n", rc);
7764                         goto out_destroy_els_rq;
7765                 }
7766         }
7767
7768         /*
7769          * Configure EQ delay multipier for interrupt coalescing using
7770          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7771          */
7772         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7773                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7774                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7775         return 0;
7776
7777 out_destroy_els_rq:
7778         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7779 out_destroy_els_wq:
7780         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7781 out_destroy_mbx_wq:
7782         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7783 out_destroy_els_cq:
7784         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7785 out_destroy_mbx_cq:
7786         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7787 out_destroy_fcp_wq:
7788         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7789                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7790 out_destroy_fcp_cq:
7791         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7792                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7793 out_destroy_hba_eq:
7794         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7795                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7796 out_error:
7797         return rc;
7798 }
7799
7800 /**
7801  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7802  * @phba: pointer to lpfc hba data structure.
7803  *
7804  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7805  * operation.
7806  *
7807  * Return codes
7808  *      0 - successful
7809  *      -ENOMEM - No available memory
7810  *      -EIO - The mailbox failed to complete successfully.
7811  **/
7812 void
7813 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7814 {
7815         int fcp_qidx;
7816
7817         /* Unset the queues created for Flash Optimized Fabric operations */
7818         if (phba->cfg_fof)
7819                 lpfc_fof_queue_destroy(phba);
7820         /* Unset mailbox command work queue */
7821         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7822         /* Unset ELS work queue */
7823         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7824         /* Unset unsolicited receive queue */
7825         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7826         /* Unset FCP work queue */
7827         if (phba->sli4_hba.fcp_wq) {
7828                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7829                      fcp_qidx++)
7830                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7831         }
7832         /* Unset mailbox command complete queue */
7833         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7834         /* Unset ELS complete queue */
7835         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7836         /* Unset FCP response complete queue */
7837         if (phba->sli4_hba.fcp_cq) {
7838                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7839                      fcp_qidx++)
7840                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7841         }
7842         /* Unset fast-path event queue */
7843         if (phba->sli4_hba.hba_eq) {
7844                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7845                      fcp_qidx++)
7846                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7847         }
7848 }
7849
7850 /**
7851  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7852  * @phba: pointer to lpfc hba data structure.
7853  *
7854  * This routine is invoked to allocate and set up a pool of completion queue
7855  * events. The body of the completion queue event is a completion queue entry
7856  * CQE. For now, this pool is used for the interrupt service routine to queue
7857  * the following HBA completion queue events for the worker thread to process:
7858  *   - Mailbox asynchronous events
7859  *   - Receive queue completion unsolicited events
7860  * Later, this can be used for all the slow-path events.
7861  *
7862  * Return codes
7863  *      0 - successful
7864  *      -ENOMEM - No available memory
7865  **/
7866 static int
7867 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7868 {
7869         struct lpfc_cq_event *cq_event;
7870         int i;
7871
7872         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7873                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7874                 if (!cq_event)
7875                         goto out_pool_create_fail;
7876                 list_add_tail(&cq_event->list,
7877                               &phba->sli4_hba.sp_cqe_event_pool);
7878         }
7879         return 0;
7880
7881 out_pool_create_fail:
7882         lpfc_sli4_cq_event_pool_destroy(phba);
7883         return -ENOMEM;
7884 }
7885
7886 /**
7887  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7888  * @phba: pointer to lpfc hba data structure.
7889  *
7890  * This routine is invoked to free the pool of completion queue events at
7891  * driver unload time. Note that, it is the responsibility of the driver
7892  * cleanup routine to free all the outstanding completion-queue events
7893  * allocated from this pool back into the pool before invoking this routine
7894  * to destroy the pool.
7895  **/
7896 static void
7897 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7898 {
7899         struct lpfc_cq_event *cq_event, *next_cq_event;
7900
7901         list_for_each_entry_safe(cq_event, next_cq_event,
7902                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7903                 list_del(&cq_event->list);
7904                 kfree(cq_event);
7905         }
7906 }
7907
7908 /**
7909  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7910  * @phba: pointer to lpfc hba data structure.
7911  *
7912  * This routine is the lock free version of the API invoked to allocate a
7913  * completion-queue event from the free pool.
7914  *
7915  * Return: Pointer to the newly allocated completion-queue event if successful
7916  *         NULL otherwise.
7917  **/
7918 struct lpfc_cq_event *
7919 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7920 {
7921         struct lpfc_cq_event *cq_event = NULL;
7922
7923         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7924                          struct lpfc_cq_event, list);
7925         return cq_event;
7926 }
7927
7928 /**
7929  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7930  * @phba: pointer to lpfc hba data structure.
7931  *
7932  * This routine is the lock version of the API invoked to allocate a
7933  * completion-queue event from the free pool.
7934  *
7935  * Return: Pointer to the newly allocated completion-queue event if successful
7936  *         NULL otherwise.
7937  **/
7938 struct lpfc_cq_event *
7939 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7940 {
7941         struct lpfc_cq_event *cq_event;
7942         unsigned long iflags;
7943
7944         spin_lock_irqsave(&phba->hbalock, iflags);
7945         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7946         spin_unlock_irqrestore(&phba->hbalock, iflags);
7947         return cq_event;
7948 }
7949
7950 /**
7951  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7952  * @phba: pointer to lpfc hba data structure.
7953  * @cq_event: pointer to the completion queue event to be freed.
7954  *
7955  * This routine is the lock free version of the API invoked to release a
7956  * completion-queue event back into the free pool.
7957  **/
7958 void
7959 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7960                              struct lpfc_cq_event *cq_event)
7961 {
7962         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7963 }
7964
7965 /**
7966  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7967  * @phba: pointer to lpfc hba data structure.
7968  * @cq_event: pointer to the completion queue event to be freed.
7969  *
7970  * This routine is the lock version of the API invoked to release a
7971  * completion-queue event back into the free pool.
7972  **/
7973 void
7974 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7975                            struct lpfc_cq_event *cq_event)
7976 {
7977         unsigned long iflags;
7978         spin_lock_irqsave(&phba->hbalock, iflags);
7979         __lpfc_sli4_cq_event_release(phba, cq_event);
7980         spin_unlock_irqrestore(&phba->hbalock, iflags);
7981 }
7982
7983 /**
7984  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7985  * @phba: pointer to lpfc hba data structure.
7986  *
7987  * This routine is to free all the pending completion-queue events to the
7988  * back into the free pool for device reset.
7989  **/
7990 static void
7991 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7992 {
7993         LIST_HEAD(cqelist);
7994         struct lpfc_cq_event *cqe;
7995         unsigned long iflags;
7996
7997         /* Retrieve all the pending WCQEs from pending WCQE lists */
7998         spin_lock_irqsave(&phba->hbalock, iflags);
7999         /* Pending FCP XRI abort events */
8000         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8001                          &cqelist);
8002         /* Pending ELS XRI abort events */
8003         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8004                          &cqelist);
8005         /* Pending asynnc events */
8006         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8007                          &cqelist);
8008         spin_unlock_irqrestore(&phba->hbalock, iflags);
8009
8010         while (!list_empty(&cqelist)) {
8011                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8012                 lpfc_sli4_cq_event_release(phba, cqe);
8013         }
8014 }
8015
8016 /**
8017  * lpfc_pci_function_reset - Reset pci function.
8018  * @phba: pointer to lpfc hba data structure.
8019  *
8020  * This routine is invoked to request a PCI function reset. It will destroys
8021  * all resources assigned to the PCI function which originates this request.
8022  *
8023  * Return codes
8024  *      0 - successful
8025  *      -ENOMEM - No available memory
8026  *      -EIO - The mailbox failed to complete successfully.
8027  **/
8028 int
8029 lpfc_pci_function_reset(struct lpfc_hba *phba)
8030 {
8031         LPFC_MBOXQ_t *mboxq;
8032         uint32_t rc = 0, if_type;
8033         uint32_t shdr_status, shdr_add_status;
8034         uint32_t rdy_chk;
8035         uint32_t port_reset = 0;
8036         union lpfc_sli4_cfg_shdr *shdr;
8037         struct lpfc_register reg_data;
8038         uint16_t devid;
8039
8040         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8041         switch (if_type) {
8042         case LPFC_SLI_INTF_IF_TYPE_0:
8043                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8044                                                        GFP_KERNEL);
8045                 if (!mboxq) {
8046                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8047                                         "0494 Unable to allocate memory for "
8048                                         "issuing SLI_FUNCTION_RESET mailbox "
8049                                         "command\n");
8050                         return -ENOMEM;
8051                 }
8052
8053                 /* Setup PCI function reset mailbox-ioctl command */
8054                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8055                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8056                                  LPFC_SLI4_MBX_EMBED);
8057                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8058                 shdr = (union lpfc_sli4_cfg_shdr *)
8059                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8060                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8061                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8062                                          &shdr->response);
8063                 if (rc != MBX_TIMEOUT)
8064                         mempool_free(mboxq, phba->mbox_mem_pool);
8065                 if (shdr_status || shdr_add_status || rc) {
8066                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8067                                         "0495 SLI_FUNCTION_RESET mailbox "
8068                                         "failed with status x%x add_status x%x,"
8069                                         " mbx status x%x\n",
8070                                         shdr_status, shdr_add_status, rc);
8071                         rc = -ENXIO;
8072                 }
8073                 break;
8074         case LPFC_SLI_INTF_IF_TYPE_2:
8075 wait:
8076                 /*
8077                  * Poll the Port Status Register and wait for RDY for
8078                  * up to 30 seconds. If the port doesn't respond, treat
8079                  * it as an error.
8080                  */
8081                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8082                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8083                                 STATUSregaddr, &reg_data.word0)) {
8084                                 rc = -ENODEV;
8085                                 goto out;
8086                         }
8087                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8088                                 break;
8089                         msleep(20);
8090                 }
8091
8092                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8093                         phba->work_status[0] = readl(
8094                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8095                         phba->work_status[1] = readl(
8096                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8097                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8098                                         "2890 Port not ready, port status reg "
8099                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8100                                         reg_data.word0,
8101                                         phba->work_status[0],
8102                                         phba->work_status[1]);
8103                         rc = -ENODEV;
8104                         goto out;
8105                 }
8106
8107                 if (!port_reset) {
8108                         /*
8109                          * Reset the port now
8110                          */
8111                         reg_data.word0 = 0;
8112                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8113                                LPFC_SLIPORT_LITTLE_ENDIAN);
8114                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8115                                LPFC_SLIPORT_INIT_PORT);
8116                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8117                                CTRLregaddr);
8118                         /* flush */
8119                         pci_read_config_word(phba->pcidev,
8120                                              PCI_DEVICE_ID, &devid);
8121
8122                         port_reset = 1;
8123                         msleep(20);
8124                         goto wait;
8125                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8126                         rc = -ENODEV;
8127                         goto out;
8128                 }
8129                 break;
8130
8131         case LPFC_SLI_INTF_IF_TYPE_1:
8132         default:
8133                 break;
8134         }
8135
8136 out:
8137         /* Catch the not-ready port failure after a port reset. */
8138         if (rc) {
8139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8140                                 "3317 HBA not functional: IP Reset Failed "
8141                                 "try: echo fw_reset > board_mode\n");
8142                 rc = -ENODEV;
8143         }
8144
8145         return rc;
8146 }
8147
8148 /**
8149  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8150  * @phba: pointer to lpfc hba data structure.
8151  *
8152  * This routine is invoked to set up the PCI device memory space for device
8153  * with SLI-4 interface spec.
8154  *
8155  * Return codes
8156  *      0 - successful
8157  *      other values - error
8158  **/
8159 static int
8160 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8161 {
8162         struct pci_dev *pdev;
8163         unsigned long bar0map_len, bar1map_len, bar2map_len;
8164         int error = -ENODEV;
8165         uint32_t if_type;
8166
8167         /* Obtain PCI device reference */
8168         if (!phba->pcidev)
8169                 return error;
8170         else
8171                 pdev = phba->pcidev;
8172
8173         /* Set the device DMA mask size */
8174         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8175          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8176                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8177                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8178                         return error;
8179                 }
8180         }
8181
8182         /*
8183          * The BARs and register set definitions and offset locations are
8184          * dependent on the if_type.
8185          */
8186         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8187                                   &phba->sli4_hba.sli_intf.word0)) {
8188                 return error;
8189         }
8190
8191         /* There is no SLI3 failback for SLI4 devices. */
8192         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8193             LPFC_SLI_INTF_VALID) {
8194                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8195                                 "2894 SLI_INTF reg contents invalid "
8196                                 "sli_intf reg 0x%x\n",
8197                                 phba->sli4_hba.sli_intf.word0);
8198                 return error;
8199         }
8200
8201         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8202         /*
8203          * Get the bus address of SLI4 device Bar regions and the
8204          * number of bytes required by each mapping. The mapping of the
8205          * particular PCI BARs regions is dependent on the type of
8206          * SLI4 device.
8207          */
8208         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8209                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8210                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8211
8212                 /*
8213                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8214                  * addr
8215                  */
8216                 phba->sli4_hba.conf_regs_memmap_p =
8217                         ioremap(phba->pci_bar0_map, bar0map_len);
8218                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8219                         dev_printk(KERN_ERR, &pdev->dev,
8220                                    "ioremap failed for SLI4 PCI config "
8221                                    "registers.\n");
8222                         goto out;
8223                 }
8224                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8225                 /* Set up BAR0 PCI config space register memory map */
8226                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8227         } else {
8228                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8229                 bar0map_len = pci_resource_len(pdev, 1);
8230                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8231                         dev_printk(KERN_ERR, &pdev->dev,
8232                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8233                         goto out;
8234                 }
8235                 phba->sli4_hba.conf_regs_memmap_p =
8236                                 ioremap(phba->pci_bar0_map, bar0map_len);
8237                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8238                         dev_printk(KERN_ERR, &pdev->dev,
8239                                 "ioremap failed for SLI4 PCI config "
8240                                 "registers.\n");
8241                                 goto out;
8242                 }
8243                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8244         }
8245
8246         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8247             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8248                 /*
8249                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8250                  * virtual address and setup the registers.
8251                  */
8252                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8253                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8254                 phba->sli4_hba.ctrl_regs_memmap_p =
8255                                 ioremap(phba->pci_bar1_map, bar1map_len);
8256                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8257                         dev_printk(KERN_ERR, &pdev->dev,
8258                            "ioremap failed for SLI4 HBA control registers.\n");
8259                         goto out_iounmap_conf;
8260                 }
8261                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8262                 lpfc_sli4_bar1_register_memmap(phba);
8263         }
8264
8265         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8266             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8267                 /*
8268                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8269                  * virtual address and setup the registers.
8270                  */
8271                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8272                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8273                 phba->sli4_hba.drbl_regs_memmap_p =
8274                                 ioremap(phba->pci_bar2_map, bar2map_len);
8275                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8276                         dev_printk(KERN_ERR, &pdev->dev,
8277                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8278                         goto out_iounmap_ctrl;
8279                 }
8280                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8281                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8282                 if (error)
8283                         goto out_iounmap_all;
8284         }
8285
8286         return 0;
8287
8288 out_iounmap_all:
8289         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8290 out_iounmap_ctrl:
8291         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8292 out_iounmap_conf:
8293         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8294 out:
8295         return error;
8296 }
8297
8298 /**
8299  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8300  * @phba: pointer to lpfc hba data structure.
8301  *
8302  * This routine is invoked to unset the PCI device memory space for device
8303  * with SLI-4 interface spec.
8304  **/
8305 static void
8306 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8307 {
8308         uint32_t if_type;
8309         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8310
8311         switch (if_type) {
8312         case LPFC_SLI_INTF_IF_TYPE_0:
8313                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8314                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8315                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8316                 break;
8317         case LPFC_SLI_INTF_IF_TYPE_2:
8318                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8319                 break;
8320         case LPFC_SLI_INTF_IF_TYPE_1:
8321         default:
8322                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8323                            "FATAL - unsupported SLI4 interface type - %d\n",
8324                            if_type);
8325                 break;
8326         }
8327 }
8328
8329 /**
8330  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8331  * @phba: pointer to lpfc hba data structure.
8332  *
8333  * This routine is invoked to enable the MSI-X interrupt vectors to device
8334  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8335  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8336  * once invoked, enables either all or nothing, depending on the current
8337  * availability of PCI vector resources. The device driver is responsible
8338  * for calling the individual request_irq() to register each MSI-X vector
8339  * with a interrupt handler, which is done in this function. Note that
8340  * later when device is unloading, the driver should always call free_irq()
8341  * on all MSI-X vectors it has done request_irq() on before calling
8342  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8343  * will be left with MSI-X enabled and leaks its vectors.
8344  *
8345  * Return codes
8346  *   0 - successful
8347  *   other values - error
8348  **/
8349 static int
8350 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8351 {
8352         int rc, i;
8353         LPFC_MBOXQ_t *pmb;
8354
8355         /* Set up MSI-X multi-message vectors */
8356         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8357                 phba->msix_entries[i].entry = i;
8358
8359         /* Configure MSI-X capability structure */
8360         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8361                                    LPFC_MSIX_VECTORS);
8362         if (rc) {
8363                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8364                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8365                 goto vec_fail_out;
8366         }
8367         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8368                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8369                                 "0477 MSI-X entry[%d]: vector=x%x "
8370                                 "message=%d\n", i,
8371                                 phba->msix_entries[i].vector,
8372                                 phba->msix_entries[i].entry);
8373         /*
8374          * Assign MSI-X vectors to interrupt handlers
8375          */
8376
8377         /* vector-0 is associated to slow-path handler */
8378         rc = request_irq(phba->msix_entries[0].vector,
8379                          &lpfc_sli_sp_intr_handler, 0,
8380                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8381         if (rc) {
8382                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8383                                 "0421 MSI-X slow-path request_irq failed "
8384                                 "(%d)\n", rc);
8385                 goto msi_fail_out;
8386         }
8387
8388         /* vector-1 is associated to fast-path handler */
8389         rc = request_irq(phba->msix_entries[1].vector,
8390                          &lpfc_sli_fp_intr_handler, 0,
8391                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8392
8393         if (rc) {
8394                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8395                                 "0429 MSI-X fast-path request_irq failed "
8396                                 "(%d)\n", rc);
8397                 goto irq_fail_out;
8398         }
8399
8400         /*
8401          * Configure HBA MSI-X attention conditions to messages
8402          */
8403         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8404
8405         if (!pmb) {
8406                 rc = -ENOMEM;
8407                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8408                                 "0474 Unable to allocate memory for issuing "
8409                                 "MBOX_CONFIG_MSI command\n");
8410                 goto mem_fail_out;
8411         }
8412         rc = lpfc_config_msi(phba, pmb);
8413         if (rc)
8414                 goto mbx_fail_out;
8415         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8416         if (rc != MBX_SUCCESS) {
8417                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8418                                 "0351 Config MSI mailbox command failed, "
8419                                 "mbxCmd x%x, mbxStatus x%x\n",
8420                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8421                 goto mbx_fail_out;
8422         }
8423
8424         /* Free memory allocated for mailbox command */
8425         mempool_free(pmb, phba->mbox_mem_pool);
8426         return rc;
8427
8428 mbx_fail_out:
8429         /* Free memory allocated for mailbox command */
8430         mempool_free(pmb, phba->mbox_mem_pool);
8431
8432 mem_fail_out:
8433         /* free the irq already requested */
8434         free_irq(phba->msix_entries[1].vector, phba);
8435
8436 irq_fail_out:
8437         /* free the irq already requested */
8438         free_irq(phba->msix_entries[0].vector, phba);
8439
8440 msi_fail_out:
8441         /* Unconfigure MSI-X capability structure */
8442         pci_disable_msix(phba->pcidev);
8443
8444 vec_fail_out:
8445         return rc;
8446 }
8447
8448 /**
8449  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8450  * @phba: pointer to lpfc hba data structure.
8451  *
8452  * This routine is invoked to release the MSI-X vectors and then disable the
8453  * MSI-X interrupt mode to device with SLI-3 interface spec.
8454  **/
8455 static void
8456 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8457 {
8458         int i;
8459
8460         /* Free up MSI-X multi-message vectors */
8461         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8462                 free_irq(phba->msix_entries[i].vector, phba);
8463         /* Disable MSI-X */
8464         pci_disable_msix(phba->pcidev);
8465
8466         return;
8467 }
8468
8469 /**
8470  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8471  * @phba: pointer to lpfc hba data structure.
8472  *
8473  * This routine is invoked to enable the MSI interrupt mode to device with
8474  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8475  * enable the MSI vector. The device driver is responsible for calling the
8476  * request_irq() to register MSI vector with a interrupt the handler, which
8477  * is done in this function.
8478  *
8479  * Return codes
8480  *      0 - successful
8481  *      other values - error
8482  */
8483 static int
8484 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8485 {
8486         int rc;
8487
8488         rc = pci_enable_msi(phba->pcidev);
8489         if (!rc)
8490                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8491                                 "0462 PCI enable MSI mode success.\n");
8492         else {
8493                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8494                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8495                 return rc;
8496         }
8497
8498         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8499                          0, LPFC_DRIVER_NAME, phba);
8500         if (rc) {
8501                 pci_disable_msi(phba->pcidev);
8502                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8503                                 "0478 MSI request_irq failed (%d)\n", rc);
8504         }
8505         return rc;
8506 }
8507
8508 /**
8509  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8510  * @phba: pointer to lpfc hba data structure.
8511  *
8512  * This routine is invoked to disable the MSI interrupt mode to device with
8513  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8514  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8515  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8516  * its vector.
8517  */
8518 static void
8519 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8520 {
8521         free_irq(phba->pcidev->irq, phba);
8522         pci_disable_msi(phba->pcidev);
8523         return;
8524 }
8525
8526 /**
8527  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8528  * @phba: pointer to lpfc hba data structure.
8529  *
8530  * This routine is invoked to enable device interrupt and associate driver's
8531  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8532  * spec. Depends on the interrupt mode configured to the driver, the driver
8533  * will try to fallback from the configured interrupt mode to an interrupt
8534  * mode which is supported by the platform, kernel, and device in the order
8535  * of:
8536  * MSI-X -> MSI -> IRQ.
8537  *
8538  * Return codes
8539  *   0 - successful
8540  *   other values - error
8541  **/
8542 static uint32_t
8543 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8544 {
8545         uint32_t intr_mode = LPFC_INTR_ERROR;
8546         int retval;
8547
8548         if (cfg_mode == 2) {
8549                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8550                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8551                 if (!retval) {
8552                         /* Now, try to enable MSI-X interrupt mode */
8553                         retval = lpfc_sli_enable_msix(phba);
8554                         if (!retval) {
8555                                 /* Indicate initialization to MSI-X mode */
8556                                 phba->intr_type = MSIX;
8557                                 intr_mode = 2;
8558                         }
8559                 }
8560         }
8561
8562         /* Fallback to MSI if MSI-X initialization failed */
8563         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8564                 retval = lpfc_sli_enable_msi(phba);
8565                 if (!retval) {
8566                         /* Indicate initialization to MSI mode */
8567                         phba->intr_type = MSI;
8568                         intr_mode = 1;
8569                 }
8570         }
8571
8572         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8573         if (phba->intr_type == NONE) {
8574                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8575                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8576                 if (!retval) {
8577                         /* Indicate initialization to INTx mode */
8578                         phba->intr_type = INTx;
8579                         intr_mode = 0;
8580                 }
8581         }
8582         return intr_mode;
8583 }
8584
8585 /**
8586  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8587  * @phba: pointer to lpfc hba data structure.
8588  *
8589  * This routine is invoked to disable device interrupt and disassociate the
8590  * driver's interrupt handler(s) from interrupt vector(s) to device with
8591  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8592  * release the interrupt vector(s) for the message signaled interrupt.
8593  **/
8594 static void
8595 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8596 {
8597         /* Disable the currently initialized interrupt mode */
8598         if (phba->intr_type == MSIX)
8599                 lpfc_sli_disable_msix(phba);
8600         else if (phba->intr_type == MSI)
8601                 lpfc_sli_disable_msi(phba);
8602         else if (phba->intr_type == INTx)
8603                 free_irq(phba->pcidev->irq, phba);
8604
8605         /* Reset interrupt management states */
8606         phba->intr_type = NONE;
8607         phba->sli.slistat.sli_intr = 0;
8608
8609         return;
8610 }
8611
8612 /**
8613  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8614  * @phba: pointer to lpfc hba data structure.
8615  *
8616  * Find next available CPU to use for IRQ to CPU affinity.
8617  */
8618 static int
8619 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8620 {
8621         struct lpfc_vector_map_info *cpup;
8622         int cpu;
8623
8624         cpup = phba->sli4_hba.cpu_map;
8625         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8626                 /* CPU must be online */
8627                 if (cpu_online(cpu)) {
8628                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8629                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8630                             (cpup->phys_id == phys_id)) {
8631                                 return cpu;
8632                         }
8633                 }
8634                 cpup++;
8635         }
8636
8637         /*
8638          * If we get here, we have used ALL CPUs for the specific
8639          * phys_id. Now we need to clear out lpfc_used_cpu and start
8640          * reusing CPUs.
8641          */
8642
8643         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8644                 if (lpfc_used_cpu[cpu] == phys_id)
8645                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8646         }
8647
8648         cpup = phba->sli4_hba.cpu_map;
8649         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8650                 /* CPU must be online */
8651                 if (cpu_online(cpu)) {
8652                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8653                             (cpup->phys_id == phys_id)) {
8654                                 return cpu;
8655                         }
8656                 }
8657                 cpup++;
8658         }
8659         return LPFC_VECTOR_MAP_EMPTY;
8660 }
8661
8662 /**
8663  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8664  * @phba:       pointer to lpfc hba data structure.
8665  * @vectors:    number of HBA vectors
8666  *
8667  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8668  * affinization across multple physical CPUs (numa nodes).
8669  * In addition, this routine will assign an IO channel for each CPU
8670  * to use when issuing I/Os.
8671  */
8672 static int
8673 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8674 {
8675         int i, idx, saved_chann, used_chann, cpu, phys_id;
8676         int max_phys_id, min_phys_id;
8677         int num_io_channel, first_cpu, chan;
8678         struct lpfc_vector_map_info *cpup;
8679 #ifdef CONFIG_X86
8680         struct cpuinfo_x86 *cpuinfo;
8681 #endif
8682         struct cpumask *mask;
8683         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8684
8685         /* If there is no mapping, just return */
8686         if (!phba->cfg_fcp_cpu_map)
8687                 return 1;
8688
8689         /* Init cpu_map array */
8690         memset(phba->sli4_hba.cpu_map, 0xff,
8691                (sizeof(struct lpfc_vector_map_info) *
8692                 phba->sli4_hba.num_present_cpu));
8693
8694         max_phys_id = 0;
8695         min_phys_id = 0xff;
8696         phys_id = 0;
8697         num_io_channel = 0;
8698         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8699
8700         /* Update CPU map with physical id and core id of each CPU */
8701         cpup = phba->sli4_hba.cpu_map;
8702         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8703 #ifdef CONFIG_X86
8704                 cpuinfo = &cpu_data(cpu);
8705                 cpup->phys_id = cpuinfo->phys_proc_id;
8706                 cpup->core_id = cpuinfo->cpu_core_id;
8707 #else
8708                 /* No distinction between CPUs for other platforms */
8709                 cpup->phys_id = 0;
8710                 cpup->core_id = 0;
8711 #endif
8712
8713                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8714                                 "3328 CPU physid %d coreid %d\n",
8715                                 cpup->phys_id, cpup->core_id);
8716
8717                 if (cpup->phys_id > max_phys_id)
8718                         max_phys_id = cpup->phys_id;
8719                 if (cpup->phys_id < min_phys_id)
8720                         min_phys_id = cpup->phys_id;
8721                 cpup++;
8722         }
8723
8724         phys_id = min_phys_id;
8725         /* Now associate the HBA vectors with specific CPUs */
8726         for (idx = 0; idx < vectors; idx++) {
8727                 cpup = phba->sli4_hba.cpu_map;
8728                 cpu = lpfc_find_next_cpu(phba, phys_id);
8729                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8730
8731                         /* Try for all phys_id's */
8732                         for (i = 1; i < max_phys_id; i++) {
8733                                 phys_id++;
8734                                 if (phys_id > max_phys_id)
8735                                         phys_id = min_phys_id;
8736                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8737                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8738                                         continue;
8739                                 goto found;
8740                         }
8741
8742                         /* Use round robin for scheduling */
8743                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8744                         chan = 0;
8745                         cpup = phba->sli4_hba.cpu_map;
8746                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8747                                 cpup->channel_id = chan;
8748                                 cpup++;
8749                                 chan++;
8750                                 if (chan >= phba->cfg_fcp_io_channel)
8751                                         chan = 0;
8752                         }
8753
8754                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8755                                         "3329 Cannot set affinity:"
8756                                         "Error mapping vector %d (%d)\n",
8757                                         idx, vectors);
8758                         return 0;
8759                 }
8760 found:
8761                 cpup += cpu;
8762                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8763                         lpfc_used_cpu[cpu] = phys_id;
8764
8765                 /* Associate vector with selected CPU */
8766                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8767
8768                 /* Associate IO channel with selected CPU */
8769                 cpup->channel_id = idx;
8770                 num_io_channel++;
8771
8772                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8773                         first_cpu = cpu;
8774
8775                 /* Now affinitize to the selected CPU */
8776                 mask = &cpup->maskbits;
8777                 cpumask_clear(mask);
8778                 cpumask_set_cpu(cpu, mask);
8779                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8780                                           vector, mask);
8781
8782                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8783                                 "3330 Set Affinity: CPU %d channel %d "
8784                                 "irq %d (%x)\n",
8785                                 cpu, cpup->channel_id,
8786                                 phba->sli4_hba.msix_entries[idx].vector, i);
8787
8788                 /* Spread vector mapping across multple physical CPU nodes */
8789                 phys_id++;
8790                 if (phys_id > max_phys_id)
8791                         phys_id = min_phys_id;
8792         }
8793
8794         /*
8795          * Finally fill in the IO channel for any remaining CPUs.
8796          * At this point, all IO channels have been assigned to a specific
8797          * MSIx vector, mapped to a specific CPU.
8798          * Base the remaining IO channel assigned, to IO channels already
8799          * assigned to other CPUs on the same phys_id.
8800          */
8801         for (i = min_phys_id; i <= max_phys_id; i++) {
8802                 /*
8803                  * If there are no io channels already mapped to
8804                  * this phys_id, just round robin thru the io_channels.
8805                  * Setup chann[] for round robin.
8806                  */
8807                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8808                         chann[idx] = idx;
8809
8810                 saved_chann = 0;
8811                 used_chann = 0;
8812
8813                 /*
8814                  * First build a list of IO channels already assigned
8815                  * to this phys_id before reassigning the same IO
8816                  * channels to the remaining CPUs.
8817                  */
8818                 cpup = phba->sli4_hba.cpu_map;
8819                 cpu = first_cpu;
8820                 cpup += cpu;
8821                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8822                      idx++) {
8823                         if (cpup->phys_id == i) {
8824                                 /*
8825                                  * Save any IO channels that are
8826                                  * already mapped to this phys_id.
8827                                  */
8828                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8829                                         chann[saved_chann] =
8830                                                 cpup->channel_id;
8831                                         saved_chann++;
8832                                         goto out;
8833                                 }
8834
8835                                 /* See if we are using round-robin */
8836                                 if (saved_chann == 0)
8837                                         saved_chann =
8838                                                 phba->cfg_fcp_io_channel;
8839
8840                                 /* Associate next IO channel with CPU */
8841                                 cpup->channel_id = chann[used_chann];
8842                                 num_io_channel++;
8843                                 used_chann++;
8844                                 if (used_chann == saved_chann)
8845                                         used_chann = 0;
8846
8847                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8848                                                 "3331 Set IO_CHANN "
8849                                                 "CPU %d channel %d\n",
8850                                                 idx, cpup->channel_id);
8851                         }
8852 out:
8853                         cpu++;
8854                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8855                                 cpup = phba->sli4_hba.cpu_map;
8856                                 cpu = 0;
8857                         } else {
8858                                 cpup++;
8859                         }
8860                 }
8861         }
8862
8863         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8864                 cpup = phba->sli4_hba.cpu_map;
8865                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8866                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8867                                 cpup->channel_id = 0;
8868                                 num_io_channel++;
8869
8870                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8871                                                 "3332 Assign IO_CHANN "
8872                                                 "CPU %d channel %d\n",
8873                                                 idx, cpup->channel_id);
8874                         }
8875                         cpup++;
8876                 }
8877         }
8878
8879         /* Sanity check */
8880         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8881                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8882                                 "3333 Set affinity mismatch:"
8883                                 "%d chann != %d cpus: %d vectors\n",
8884                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8885                                 vectors);
8886
8887         /* Enable using cpu affinity for scheduling */
8888         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8889         return 1;
8890 }
8891
8892
8893 /**
8894  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8895  * @phba: pointer to lpfc hba data structure.
8896  *
8897  * This routine is invoked to enable the MSI-X interrupt vectors to device
8898  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8899  * is called to enable the MSI-X vectors. The device driver is responsible
8900  * for calling the individual request_irq() to register each MSI-X vector
8901  * with a interrupt handler, which is done in this function. Note that
8902  * later when device is unloading, the driver should always call free_irq()
8903  * on all MSI-X vectors it has done request_irq() on before calling
8904  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8905  * will be left with MSI-X enabled and leaks its vectors.
8906  *
8907  * Return codes
8908  * 0 - successful
8909  * other values - error
8910  **/
8911 static int
8912 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8913 {
8914         int vectors, rc, index;
8915
8916         /* Set up MSI-X multi-message vectors */
8917         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8918                 phba->sli4_hba.msix_entries[index].entry = index;
8919
8920         /* Configure MSI-X capability structure */
8921         vectors = phba->cfg_fcp_io_channel;
8922         if (phba->cfg_fof) {
8923                 phba->sli4_hba.msix_entries[index].entry = index;
8924                 vectors++;
8925         }
8926         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8927                                    2, vectors);
8928         if (rc < 0) {
8929                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8930                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8931                 goto vec_fail_out;
8932         }
8933         vectors = rc;
8934
8935         /* Log MSI-X vector assignment */
8936         for (index = 0; index < vectors; index++)
8937                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8938                                 "0489 MSI-X entry[%d]: vector=x%x "
8939                                 "message=%d\n", index,
8940                                 phba->sli4_hba.msix_entries[index].vector,
8941                                 phba->sli4_hba.msix_entries[index].entry);
8942
8943         /* Assign MSI-X vectors to interrupt handlers */
8944         for (index = 0; index < vectors; index++) {
8945                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8946                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8947                          LPFC_SLI4_HANDLER_NAME_SZ,
8948                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8949
8950                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8951                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8952                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8953                 if (phba->cfg_fof && (index == (vectors - 1)))
8954                         rc = request_irq(
8955                                 phba->sli4_hba.msix_entries[index].vector,
8956                                  &lpfc_sli4_fof_intr_handler, 0,
8957                                  (char *)&phba->sli4_hba.handler_name[index],
8958                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8959                 else
8960                         rc = request_irq(
8961                                 phba->sli4_hba.msix_entries[index].vector,
8962                                  &lpfc_sli4_hba_intr_handler, 0,
8963                                  (char *)&phba->sli4_hba.handler_name[index],
8964                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8965                 if (rc) {
8966                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8967                                         "0486 MSI-X fast-path (%d) "
8968                                         "request_irq failed (%d)\n", index, rc);
8969                         goto cfg_fail_out;
8970                 }
8971         }
8972
8973         if (phba->cfg_fof)
8974                 vectors--;
8975
8976         if (vectors != phba->cfg_fcp_io_channel) {
8977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8978                                 "3238 Reducing IO channels to match number of "
8979                                 "MSI-X vectors, requested %d got %d\n",
8980                                 phba->cfg_fcp_io_channel, vectors);
8981                 phba->cfg_fcp_io_channel = vectors;
8982         }
8983
8984         if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
8985                 lpfc_sli4_set_affinity(phba, vectors);
8986         return rc;
8987
8988 cfg_fail_out:
8989         /* free the irq already requested */
8990         for (--index; index >= 0; index--) {
8991                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8992                                           vector, NULL);
8993                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8994                          &phba->sli4_hba.fcp_eq_hdl[index]);
8995         }
8996
8997         /* Unconfigure MSI-X capability structure */
8998         pci_disable_msix(phba->pcidev);
8999
9000 vec_fail_out:
9001         return rc;
9002 }
9003
9004 /**
9005  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9006  * @phba: pointer to lpfc hba data structure.
9007  *
9008  * This routine is invoked to release the MSI-X vectors and then disable the
9009  * MSI-X interrupt mode to device with SLI-4 interface spec.
9010  **/
9011 static void
9012 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9013 {
9014         int index;
9015
9016         /* Free up MSI-X multi-message vectors */
9017         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9018                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9019                                           vector, NULL);
9020                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9021                          &phba->sli4_hba.fcp_eq_hdl[index]);
9022         }
9023         if (phba->cfg_fof) {
9024                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9025                          &phba->sli4_hba.fcp_eq_hdl[index]);
9026         }
9027         /* Disable MSI-X */
9028         pci_disable_msix(phba->pcidev);
9029
9030         return;
9031 }
9032
9033 /**
9034  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9035  * @phba: pointer to lpfc hba data structure.
9036  *
9037  * This routine is invoked to enable the MSI interrupt mode to device with
9038  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9039  * to enable the MSI vector. The device driver is responsible for calling
9040  * the request_irq() to register MSI vector with a interrupt the handler,
9041  * which is done in this function.
9042  *
9043  * Return codes
9044  *      0 - successful
9045  *      other values - error
9046  **/
9047 static int
9048 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9049 {
9050         int rc, index;
9051
9052         rc = pci_enable_msi(phba->pcidev);
9053         if (!rc)
9054                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9055                                 "0487 PCI enable MSI mode success.\n");
9056         else {
9057                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9058                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9059                 return rc;
9060         }
9061
9062         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9063                          0, LPFC_DRIVER_NAME, phba);
9064         if (rc) {
9065                 pci_disable_msi(phba->pcidev);
9066                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9067                                 "0490 MSI request_irq failed (%d)\n", rc);
9068                 return rc;
9069         }
9070
9071         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9072                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9073                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9074         }
9075
9076         if (phba->cfg_fof) {
9077                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9078                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9079         }
9080         return 0;
9081 }
9082
9083 /**
9084  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9085  * @phba: pointer to lpfc hba data structure.
9086  *
9087  * This routine is invoked to disable the MSI interrupt mode to device with
9088  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9089  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9090  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9091  * its vector.
9092  **/
9093 static void
9094 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9095 {
9096         free_irq(phba->pcidev->irq, phba);
9097         pci_disable_msi(phba->pcidev);
9098         return;
9099 }
9100
9101 /**
9102  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9103  * @phba: pointer to lpfc hba data structure.
9104  *
9105  * This routine is invoked to enable device interrupt and associate driver's
9106  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9107  * interface spec. Depends on the interrupt mode configured to the driver,
9108  * the driver will try to fallback from the configured interrupt mode to an
9109  * interrupt mode which is supported by the platform, kernel, and device in
9110  * the order of:
9111  * MSI-X -> MSI -> IRQ.
9112  *
9113  * Return codes
9114  *      0 - successful
9115  *      other values - error
9116  **/
9117 static uint32_t
9118 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9119 {
9120         uint32_t intr_mode = LPFC_INTR_ERROR;
9121         int retval, index;
9122
9123         if (cfg_mode == 2) {
9124                 /* Preparation before conf_msi mbox cmd */
9125                 retval = 0;
9126                 if (!retval) {
9127                         /* Now, try to enable MSI-X interrupt mode */
9128                         retval = lpfc_sli4_enable_msix(phba);
9129                         if (!retval) {
9130                                 /* Indicate initialization to MSI-X mode */
9131                                 phba->intr_type = MSIX;
9132                                 intr_mode = 2;
9133                         }
9134                 }
9135         }
9136
9137         /* Fallback to MSI if MSI-X initialization failed */
9138         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9139                 retval = lpfc_sli4_enable_msi(phba);
9140                 if (!retval) {
9141                         /* Indicate initialization to MSI mode */
9142                         phba->intr_type = MSI;
9143                         intr_mode = 1;
9144                 }
9145         }
9146
9147         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9148         if (phba->intr_type == NONE) {
9149                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9150                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9151                 if (!retval) {
9152                         /* Indicate initialization to INTx mode */
9153                         phba->intr_type = INTx;
9154                         intr_mode = 0;
9155                         for (index = 0; index < phba->cfg_fcp_io_channel;
9156                              index++) {
9157                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9158                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9159                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9160                                         fcp_eq_in_use, 1);
9161                         }
9162                         if (phba->cfg_fof) {
9163                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9164                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9165                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9166                                         fcp_eq_in_use, 1);
9167                         }
9168                 }
9169         }
9170         return intr_mode;
9171 }
9172
9173 /**
9174  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9175  * @phba: pointer to lpfc hba data structure.
9176  *
9177  * This routine is invoked to disable device interrupt and disassociate
9178  * the driver's interrupt handler(s) from interrupt vector(s) to device
9179  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9180  * will release the interrupt vector(s) for the message signaled interrupt.
9181  **/
9182 static void
9183 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9184 {
9185         /* Disable the currently initialized interrupt mode */
9186         if (phba->intr_type == MSIX)
9187                 lpfc_sli4_disable_msix(phba);
9188         else if (phba->intr_type == MSI)
9189                 lpfc_sli4_disable_msi(phba);
9190         else if (phba->intr_type == INTx)
9191                 free_irq(phba->pcidev->irq, phba);
9192
9193         /* Reset interrupt management states */
9194         phba->intr_type = NONE;
9195         phba->sli.slistat.sli_intr = 0;
9196
9197         return;
9198 }
9199
9200 /**
9201  * lpfc_unset_hba - Unset SLI3 hba device initialization
9202  * @phba: pointer to lpfc hba data structure.
9203  *
9204  * This routine is invoked to unset the HBA device initialization steps to
9205  * a device with SLI-3 interface spec.
9206  **/
9207 static void
9208 lpfc_unset_hba(struct lpfc_hba *phba)
9209 {
9210         struct lpfc_vport *vport = phba->pport;
9211         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9212
9213         spin_lock_irq(shost->host_lock);
9214         vport->load_flag |= FC_UNLOADING;
9215         spin_unlock_irq(shost->host_lock);
9216
9217         kfree(phba->vpi_bmask);
9218         kfree(phba->vpi_ids);
9219
9220         lpfc_stop_hba_timers(phba);
9221
9222         phba->pport->work_port_events = 0;
9223
9224         lpfc_sli_hba_down(phba);
9225
9226         lpfc_sli_brdrestart(phba);
9227
9228         lpfc_sli_disable_intr(phba);
9229
9230         return;
9231 }
9232
9233 /**
9234  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9235  * @phba: Pointer to HBA context object.
9236  *
9237  * This function is called in the SLI4 code path to wait for completion
9238  * of device's XRIs exchange busy. It will check the XRI exchange busy
9239  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9240  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9241  * I/Os every 30 seconds, log error message, and wait forever. Only when
9242  * all XRI exchange busy complete, the driver unload shall proceed with
9243  * invoking the function reset ioctl mailbox command to the CNA and the
9244  * the rest of the driver unload resource release.
9245  **/
9246 static void
9247 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9248 {
9249         int wait_time = 0;
9250         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9251         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9252
9253         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9254                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9255                         if (!fcp_xri_cmpl)
9256                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9257                                                 "2877 FCP XRI exchange busy "
9258                                                 "wait time: %d seconds.\n",
9259                                                 wait_time/1000);
9260                         if (!els_xri_cmpl)
9261                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262                                                 "2878 ELS XRI exchange busy "
9263                                                 "wait time: %d seconds.\n",
9264                                                 wait_time/1000);
9265                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9266                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9267                 } else {
9268                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9269                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9270                 }
9271                 fcp_xri_cmpl =
9272                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9273                 els_xri_cmpl =
9274                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9275         }
9276 }
9277
9278 /**
9279  * lpfc_sli4_hba_unset - Unset the fcoe hba
9280  * @phba: Pointer to HBA context object.
9281  *
9282  * This function is called in the SLI4 code path to reset the HBA's FCoE
9283  * function. The caller is not required to hold any lock. This routine
9284  * issues PCI function reset mailbox command to reset the FCoE function.
9285  * At the end of the function, it calls lpfc_hba_down_post function to
9286  * free any pending commands.
9287  **/
9288 static void
9289 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9290 {
9291         int wait_cnt = 0;
9292         LPFC_MBOXQ_t *mboxq;
9293         struct pci_dev *pdev = phba->pcidev;
9294
9295         lpfc_stop_hba_timers(phba);
9296         phba->sli4_hba.intr_enable = 0;
9297
9298         /*
9299          * Gracefully wait out the potential current outstanding asynchronous
9300          * mailbox command.
9301          */
9302
9303         /* First, block any pending async mailbox command from posted */
9304         spin_lock_irq(&phba->hbalock);
9305         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9306         spin_unlock_irq(&phba->hbalock);
9307         /* Now, trying to wait it out if we can */
9308         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9309                 msleep(10);
9310                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9311                         break;
9312         }
9313         /* Forcefully release the outstanding mailbox command if timed out */
9314         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9315                 spin_lock_irq(&phba->hbalock);
9316                 mboxq = phba->sli.mbox_active;
9317                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9318                 __lpfc_mbox_cmpl_put(phba, mboxq);
9319                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9320                 phba->sli.mbox_active = NULL;
9321                 spin_unlock_irq(&phba->hbalock);
9322         }
9323
9324         /* Abort all iocbs associated with the hba */
9325         lpfc_sli_hba_iocb_abort(phba);
9326
9327         /* Wait for completion of device XRI exchange busy */
9328         lpfc_sli4_xri_exchange_busy_wait(phba);
9329
9330         /* Disable PCI subsystem interrupt */
9331         lpfc_sli4_disable_intr(phba);
9332
9333         /* Disable SR-IOV if enabled */
9334         if (phba->cfg_sriov_nr_virtfn)
9335                 pci_disable_sriov(pdev);
9336
9337         /* Stop kthread signal shall trigger work_done one more time */
9338         kthread_stop(phba->worker_thread);
9339
9340         /* Reset SLI4 HBA FCoE function */
9341         lpfc_pci_function_reset(phba);
9342         lpfc_sli4_queue_destroy(phba);
9343
9344         /* Stop the SLI4 device port */
9345         phba->pport->work_port_events = 0;
9346 }
9347
9348  /**
9349  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9350  * @phba: Pointer to HBA context object.
9351  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9352  *
9353  * This function is called in the SLI4 code path to read the port's
9354  * sli4 capabilities.
9355  *
9356  * This function may be be called from any context that can block-wait
9357  * for the completion.  The expectation is that this routine is called
9358  * typically from probe_one or from the online routine.
9359  **/
9360 int
9361 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9362 {
9363         int rc;
9364         struct lpfc_mqe *mqe;
9365         struct lpfc_pc_sli4_params *sli4_params;
9366         uint32_t mbox_tmo;
9367
9368         rc = 0;
9369         mqe = &mboxq->u.mqe;
9370
9371         /* Read the port's SLI4 Parameters port capabilities */
9372         lpfc_pc_sli4_params(mboxq);
9373         if (!phba->sli4_hba.intr_enable)
9374                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9375         else {
9376                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9377                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9378         }
9379
9380         if (unlikely(rc))
9381                 return 1;
9382
9383         sli4_params = &phba->sli4_hba.pc_sli4_params;
9384         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9385         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9386         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9387         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9388                                              &mqe->un.sli4_params);
9389         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9390                                              &mqe->un.sli4_params);
9391         sli4_params->proto_types = mqe->un.sli4_params.word3;
9392         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9393         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9394         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9395         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9396         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9397         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9398         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9399         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9400         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9401         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9402         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9403         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9404         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9405         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9406         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9407         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9408         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9409         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9410         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9411         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9412
9413         /* Make sure that sge_supp_len can be handled by the driver */
9414         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9415                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9416
9417         return rc;
9418 }
9419
9420 /**
9421  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9422  * @phba: Pointer to HBA context object.
9423  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9424  *
9425  * This function is called in the SLI4 code path to read the port's
9426  * sli4 capabilities.
9427  *
9428  * This function may be be called from any context that can block-wait
9429  * for the completion.  The expectation is that this routine is called
9430  * typically from probe_one or from the online routine.
9431  **/
9432 int
9433 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9434 {
9435         int rc;
9436         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9437         struct lpfc_pc_sli4_params *sli4_params;
9438         uint32_t mbox_tmo;
9439         int length;
9440         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9441
9442         /*
9443          * By default, the driver assumes the SLI4 port requires RPI
9444          * header postings.  The SLI4_PARAM response will correct this
9445          * assumption.
9446          */
9447         phba->sli4_hba.rpi_hdrs_in_use = 1;
9448
9449         /* Read the port's SLI4 Config Parameters */
9450         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9451                   sizeof(struct lpfc_sli4_cfg_mhdr));
9452         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9453                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9454                          length, LPFC_SLI4_MBX_EMBED);
9455         if (!phba->sli4_hba.intr_enable)
9456                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9457         else {
9458                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9459                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9460         }
9461         if (unlikely(rc))
9462                 return rc;
9463         sli4_params = &phba->sli4_hba.pc_sli4_params;
9464         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9465         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9466         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9467         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9468         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9469                                              mbx_sli4_parameters);
9470         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9471                                              mbx_sli4_parameters);
9472         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9473                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9474         else
9475                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9476         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9477         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9478         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9479         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9480         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9481         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9482         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9483         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9484         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9485                                             mbx_sli4_parameters);
9486         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9487                                            mbx_sli4_parameters);
9488         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9489         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9490
9491         /* Make sure that sge_supp_len can be handled by the driver */
9492         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9493                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9494
9495         return 0;
9496 }
9497
9498 /**
9499  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9500  * @pdev: pointer to PCI device
9501  * @pid: pointer to PCI device identifier
9502  *
9503  * This routine is to be called to attach a device with SLI-3 interface spec
9504  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9505  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9506  * information of the device and driver to see if the driver state that it can
9507  * support this kind of device. If the match is successful, the driver core
9508  * invokes this routine. If this routine determines it can claim the HBA, it
9509  * does all the initialization that it needs to do to handle the HBA properly.
9510  *
9511  * Return code
9512  *      0 - driver can claim the device
9513  *      negative value - driver can not claim the device
9514  **/
9515 static int
9516 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9517 {
9518         struct lpfc_hba   *phba;
9519         struct lpfc_vport *vport = NULL;
9520         struct Scsi_Host  *shost = NULL;
9521         int error;
9522         uint32_t cfg_mode, intr_mode;
9523
9524         /* Allocate memory for HBA structure */
9525         phba = lpfc_hba_alloc(pdev);
9526         if (!phba)
9527                 return -ENOMEM;
9528
9529         /* Perform generic PCI device enabling operation */
9530         error = lpfc_enable_pci_dev(phba);
9531         if (error)
9532                 goto out_free_phba;
9533
9534         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9535         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9536         if (error)
9537                 goto out_disable_pci_dev;
9538
9539         /* Set up SLI-3 specific device PCI memory space */
9540         error = lpfc_sli_pci_mem_setup(phba);
9541         if (error) {
9542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9543                                 "1402 Failed to set up pci memory space.\n");
9544                 goto out_disable_pci_dev;
9545         }
9546
9547         /* Set up phase-1 common device driver resources */
9548         error = lpfc_setup_driver_resource_phase1(phba);
9549         if (error) {
9550                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9551                                 "1403 Failed to set up driver resource.\n");
9552                 goto out_unset_pci_mem_s3;
9553         }
9554
9555         /* Set up SLI-3 specific device driver resources */
9556         error = lpfc_sli_driver_resource_setup(phba);
9557         if (error) {
9558                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559                                 "1404 Failed to set up driver resource.\n");
9560                 goto out_unset_pci_mem_s3;
9561         }
9562
9563         /* Initialize and populate the iocb list per host */
9564         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9565         if (error) {
9566                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9567                                 "1405 Failed to initialize iocb list.\n");
9568                 goto out_unset_driver_resource_s3;
9569         }
9570
9571         /* Set up common device driver resources */
9572         error = lpfc_setup_driver_resource_phase2(phba);
9573         if (error) {
9574                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9575                                 "1406 Failed to set up driver resource.\n");
9576                 goto out_free_iocb_list;
9577         }
9578
9579         /* Get the default values for Model Name and Description */
9580         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9581
9582         /* Create SCSI host to the physical port */
9583         error = lpfc_create_shost(phba);
9584         if (error) {
9585                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9586                                 "1407 Failed to create scsi host.\n");
9587                 goto out_unset_driver_resource;
9588         }
9589
9590         /* Configure sysfs attributes */
9591         vport = phba->pport;
9592         error = lpfc_alloc_sysfs_attr(vport);
9593         if (error) {
9594                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9595                                 "1476 Failed to allocate sysfs attr\n");
9596                 goto out_destroy_shost;
9597         }
9598
9599         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9600         /* Now, trying to enable interrupt and bring up the device */
9601         cfg_mode = phba->cfg_use_msi;
9602         while (true) {
9603                 /* Put device to a known state before enabling interrupt */
9604                 lpfc_stop_port(phba);
9605                 /* Configure and enable interrupt */
9606                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9607                 if (intr_mode == LPFC_INTR_ERROR) {
9608                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9609                                         "0431 Failed to enable interrupt.\n");
9610                         error = -ENODEV;
9611                         goto out_free_sysfs_attr;
9612                 }
9613                 /* SLI-3 HBA setup */
9614                 if (lpfc_sli_hba_setup(phba)) {
9615                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9616                                         "1477 Failed to set up hba\n");
9617                         error = -ENODEV;
9618                         goto out_remove_device;
9619                 }
9620
9621                 /* Wait 50ms for the interrupts of previous mailbox commands */
9622                 msleep(50);
9623                 /* Check active interrupts on message signaled interrupts */
9624                 if (intr_mode == 0 ||
9625                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9626                         /* Log the current active interrupt mode */
9627                         phba->intr_mode = intr_mode;
9628                         lpfc_log_intr_mode(phba, intr_mode);
9629                         break;
9630                 } else {
9631                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9632                                         "0447 Configure interrupt mode (%d) "
9633                                         "failed active interrupt test.\n",
9634                                         intr_mode);
9635                         /* Disable the current interrupt mode */
9636                         lpfc_sli_disable_intr(phba);
9637                         /* Try next level of interrupt mode */
9638                         cfg_mode = --intr_mode;
9639                 }
9640         }
9641
9642         /* Perform post initialization setup */
9643         lpfc_post_init_setup(phba);
9644
9645         /* Check if there are static vports to be created. */
9646         lpfc_create_static_vport(phba);
9647
9648         return 0;
9649
9650 out_remove_device:
9651         lpfc_unset_hba(phba);
9652 out_free_sysfs_attr:
9653         lpfc_free_sysfs_attr(vport);
9654 out_destroy_shost:
9655         lpfc_destroy_shost(phba);
9656 out_unset_driver_resource:
9657         lpfc_unset_driver_resource_phase2(phba);
9658 out_free_iocb_list:
9659         lpfc_free_iocb_list(phba);
9660 out_unset_driver_resource_s3:
9661         lpfc_sli_driver_resource_unset(phba);
9662 out_unset_pci_mem_s3:
9663         lpfc_sli_pci_mem_unset(phba);
9664 out_disable_pci_dev:
9665         lpfc_disable_pci_dev(phba);
9666         if (shost)
9667                 scsi_host_put(shost);
9668 out_free_phba:
9669         lpfc_hba_free(phba);
9670         return error;
9671 }
9672
9673 /**
9674  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9675  * @pdev: pointer to PCI device
9676  *
9677  * This routine is to be called to disattach a device with SLI-3 interface
9678  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9679  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9680  * device to be removed from the PCI subsystem properly.
9681  **/
9682 static void
9683 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9684 {
9685         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9686         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9687         struct lpfc_vport **vports;
9688         struct lpfc_hba   *phba = vport->phba;
9689         int i;
9690         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9691
9692         spin_lock_irq(&phba->hbalock);
9693         vport->load_flag |= FC_UNLOADING;
9694         spin_unlock_irq(&phba->hbalock);
9695
9696         lpfc_free_sysfs_attr(vport);
9697
9698         /* Release all the vports against this physical port */
9699         vports = lpfc_create_vport_work_array(phba);
9700         if (vports != NULL)
9701                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9702                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9703                                 continue;
9704                         fc_vport_terminate(vports[i]->fc_vport);
9705                 }
9706         lpfc_destroy_vport_work_array(phba, vports);
9707
9708         /* Remove FC host and then SCSI host with the physical port */
9709         fc_remove_host(shost);
9710         scsi_remove_host(shost);
9711         lpfc_cleanup(vport);
9712
9713         /*
9714          * Bring down the SLI Layer. This step disable all interrupts,
9715          * clears the rings, discards all mailbox commands, and resets
9716          * the HBA.
9717          */
9718
9719         /* HBA interrupt will be disabled after this call */
9720         lpfc_sli_hba_down(phba);
9721         /* Stop kthread signal shall trigger work_done one more time */
9722         kthread_stop(phba->worker_thread);
9723         /* Final cleanup of txcmplq and reset the HBA */
9724         lpfc_sli_brdrestart(phba);
9725
9726         kfree(phba->vpi_bmask);
9727         kfree(phba->vpi_ids);
9728
9729         lpfc_stop_hba_timers(phba);
9730         spin_lock_irq(&phba->hbalock);
9731         list_del_init(&vport->listentry);
9732         spin_unlock_irq(&phba->hbalock);
9733
9734         lpfc_debugfs_terminate(vport);
9735
9736         /* Disable SR-IOV if enabled */
9737         if (phba->cfg_sriov_nr_virtfn)
9738                 pci_disable_sriov(pdev);
9739
9740         /* Disable interrupt */
9741         lpfc_sli_disable_intr(phba);
9742
9743         scsi_host_put(shost);
9744
9745         /*
9746          * Call scsi_free before mem_free since scsi bufs are released to their
9747          * corresponding pools here.
9748          */
9749         lpfc_scsi_free(phba);
9750         lpfc_mem_free_all(phba);
9751
9752         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9753                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9754
9755         /* Free resources associated with SLI2 interface */
9756         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9757                           phba->slim2p.virt, phba->slim2p.phys);
9758
9759         /* unmap adapter SLIM and Control Registers */
9760         iounmap(phba->ctrl_regs_memmap_p);
9761         iounmap(phba->slim_memmap_p);
9762
9763         lpfc_hba_free(phba);
9764
9765         pci_release_selected_regions(pdev, bars);
9766         pci_disable_device(pdev);
9767 }
9768
9769 /**
9770  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9771  * @pdev: pointer to PCI device
9772  * @msg: power management message
9773  *
9774  * This routine is to be called from the kernel's PCI subsystem to support
9775  * system Power Management (PM) to device with SLI-3 interface spec. When
9776  * PM invokes this method, it quiesces the device by stopping the driver's
9777  * worker thread for the device, turning off device's interrupt and DMA,
9778  * and bring the device offline. Note that as the driver implements the
9779  * minimum PM requirements to a power-aware driver's PM support for the
9780  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9781  * to the suspend() method call will be treated as SUSPEND and the driver will
9782  * fully reinitialize its device during resume() method call, the driver will
9783  * set device to PCI_D3hot state in PCI config space instead of setting it
9784  * according to the @msg provided by the PM.
9785  *
9786  * Return code
9787  *      0 - driver suspended the device
9788  *      Error otherwise
9789  **/
9790 static int
9791 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9792 {
9793         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9794         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9795
9796         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9797                         "0473 PCI device Power Management suspend.\n");
9798
9799         /* Bring down the device */
9800         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9801         lpfc_offline(phba);
9802         kthread_stop(phba->worker_thread);
9803
9804         /* Disable interrupt from device */
9805         lpfc_sli_disable_intr(phba);
9806
9807         /* Save device state to PCI config space */
9808         pci_save_state(pdev);
9809         pci_set_power_state(pdev, PCI_D3hot);
9810
9811         return 0;
9812 }
9813
9814 /**
9815  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9816  * @pdev: pointer to PCI device
9817  *
9818  * This routine is to be called from the kernel's PCI subsystem to support
9819  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9820  * invokes this method, it restores the device's PCI config space state and
9821  * fully reinitializes the device and brings it online. Note that as the
9822  * driver implements the minimum PM requirements to a power-aware driver's
9823  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9824  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9825  * driver will fully reinitialize its device during resume() method call,
9826  * the device will be set to PCI_D0 directly in PCI config space before
9827  * restoring the state.
9828  *
9829  * Return code
9830  *      0 - driver suspended the device
9831  *      Error otherwise
9832  **/
9833 static int
9834 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9835 {
9836         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9837         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9838         uint32_t intr_mode;
9839         int error;
9840
9841         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9842                         "0452 PCI device Power Management resume.\n");
9843
9844         /* Restore device state from PCI config space */
9845         pci_set_power_state(pdev, PCI_D0);
9846         pci_restore_state(pdev);
9847
9848         /*
9849          * As the new kernel behavior of pci_restore_state() API call clears
9850          * device saved_state flag, need to save the restored state again.
9851          */
9852         pci_save_state(pdev);
9853
9854         if (pdev->is_busmaster)
9855                 pci_set_master(pdev);
9856
9857         /* Startup the kernel thread for this host adapter. */
9858         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9859                                         "lpfc_worker_%d", phba->brd_no);
9860         if (IS_ERR(phba->worker_thread)) {
9861                 error = PTR_ERR(phba->worker_thread);
9862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9863                                 "0434 PM resume failed to start worker "
9864                                 "thread: error=x%x.\n", error);
9865                 return error;
9866         }
9867
9868         /* Configure and enable interrupt */
9869         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9870         if (intr_mode == LPFC_INTR_ERROR) {
9871                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9872                                 "0430 PM resume Failed to enable interrupt\n");
9873                 return -EIO;
9874         } else
9875                 phba->intr_mode = intr_mode;
9876
9877         /* Restart HBA and bring it online */
9878         lpfc_sli_brdrestart(phba);
9879         lpfc_online(phba);
9880
9881         /* Log the current active interrupt mode */
9882         lpfc_log_intr_mode(phba, phba->intr_mode);
9883
9884         return 0;
9885 }
9886
9887 /**
9888  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9889  * @phba: pointer to lpfc hba data structure.
9890  *
9891  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9892  * aborts all the outstanding SCSI I/Os to the pci device.
9893  **/
9894 static void
9895 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9896 {
9897         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9898                         "2723 PCI channel I/O abort preparing for recovery\n");
9899
9900         /*
9901          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9902          * and let the SCSI mid-layer to retry them to recover.
9903          */
9904         lpfc_sli_abort_fcp_rings(phba);
9905 }
9906
9907 /**
9908  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9909  * @phba: pointer to lpfc hba data structure.
9910  *
9911  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9912  * disables the device interrupt and pci device, and aborts the internal FCP
9913  * pending I/Os.
9914  **/
9915 static void
9916 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9917 {
9918         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9919                         "2710 PCI channel disable preparing for reset\n");
9920
9921         /* Block any management I/Os to the device */
9922         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9923
9924         /* Block all SCSI devices' I/Os on the host */
9925         lpfc_scsi_dev_block(phba);
9926
9927         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9928         lpfc_sli_flush_fcp_rings(phba);
9929
9930         /* stop all timers */
9931         lpfc_stop_hba_timers(phba);
9932
9933         /* Disable interrupt and pci device */
9934         lpfc_sli_disable_intr(phba);
9935         pci_disable_device(phba->pcidev);
9936 }
9937
9938 /**
9939  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9940  * @phba: pointer to lpfc hba data structure.
9941  *
9942  * This routine is called to prepare the SLI3 device for PCI slot permanently
9943  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9944  * pending I/Os.
9945  **/
9946 static void
9947 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9948 {
9949         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9950                         "2711 PCI channel permanent disable for failure\n");
9951         /* Block all SCSI devices' I/Os on the host */
9952         lpfc_scsi_dev_block(phba);
9953
9954         /* stop all timers */
9955         lpfc_stop_hba_timers(phba);
9956
9957         /* Clean up all driver's outstanding SCSI I/Os */
9958         lpfc_sli_flush_fcp_rings(phba);
9959 }
9960
9961 /**
9962  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9963  * @pdev: pointer to PCI device.
9964  * @state: the current PCI connection state.
9965  *
9966  * This routine is called from the PCI subsystem for I/O error handling to
9967  * device with SLI-3 interface spec. This function is called by the PCI
9968  * subsystem after a PCI bus error affecting this device has been detected.
9969  * When this function is invoked, it will need to stop all the I/Os and
9970  * interrupt(s) to the device. Once that is done, it will return
9971  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9972  * as desired.
9973  *
9974  * Return codes
9975  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9976  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9977  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9978  **/
9979 static pci_ers_result_t
9980 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9981 {
9982         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9983         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9984
9985         switch (state) {
9986         case pci_channel_io_normal:
9987                 /* Non-fatal error, prepare for recovery */
9988                 lpfc_sli_prep_dev_for_recover(phba);
9989                 return PCI_ERS_RESULT_CAN_RECOVER;
9990         case pci_channel_io_frozen:
9991                 /* Fatal error, prepare for slot reset */
9992                 lpfc_sli_prep_dev_for_reset(phba);
9993                 return PCI_ERS_RESULT_NEED_RESET;
9994         case pci_channel_io_perm_failure:
9995                 /* Permanent failure, prepare for device down */
9996                 lpfc_sli_prep_dev_for_perm_failure(phba);
9997                 return PCI_ERS_RESULT_DISCONNECT;
9998         default:
9999                 /* Unknown state, prepare and request slot reset */
10000                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10001                                 "0472 Unknown PCI error state: x%x\n", state);
10002                 lpfc_sli_prep_dev_for_reset(phba);
10003                 return PCI_ERS_RESULT_NEED_RESET;
10004         }
10005 }
10006
10007 /**
10008  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10009  * @pdev: pointer to PCI device.
10010  *
10011  * This routine is called from the PCI subsystem for error handling to
10012  * device with SLI-3 interface spec. This is called after PCI bus has been
10013  * reset to restart the PCI card from scratch, as if from a cold-boot.
10014  * During the PCI subsystem error recovery, after driver returns
10015  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10016  * recovery and then call this routine before calling the .resume method
10017  * to recover the device. This function will initialize the HBA device,
10018  * enable the interrupt, but it will just put the HBA to offline state
10019  * without passing any I/O traffic.
10020  *
10021  * Return codes
10022  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10023  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10024  */
10025 static pci_ers_result_t
10026 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10027 {
10028         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10029         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10030         struct lpfc_sli *psli = &phba->sli;
10031         uint32_t intr_mode;
10032
10033         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10034         if (pci_enable_device_mem(pdev)) {
10035                 printk(KERN_ERR "lpfc: Cannot re-enable "
10036                         "PCI device after reset.\n");
10037                 return PCI_ERS_RESULT_DISCONNECT;
10038         }
10039
10040         pci_restore_state(pdev);
10041
10042         /*
10043          * As the new kernel behavior of pci_restore_state() API call clears
10044          * device saved_state flag, need to save the restored state again.
10045          */
10046         pci_save_state(pdev);
10047
10048         if (pdev->is_busmaster)
10049                 pci_set_master(pdev);
10050
10051         spin_lock_irq(&phba->hbalock);
10052         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10053         spin_unlock_irq(&phba->hbalock);
10054
10055         /* Configure and enable interrupt */
10056         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10057         if (intr_mode == LPFC_INTR_ERROR) {
10058                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10059                                 "0427 Cannot re-enable interrupt after "
10060                                 "slot reset.\n");
10061                 return PCI_ERS_RESULT_DISCONNECT;
10062         } else
10063                 phba->intr_mode = intr_mode;
10064
10065         /* Take device offline, it will perform cleanup */
10066         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10067         lpfc_offline(phba);
10068         lpfc_sli_brdrestart(phba);
10069
10070         /* Log the current active interrupt mode */
10071         lpfc_log_intr_mode(phba, phba->intr_mode);
10072
10073         return PCI_ERS_RESULT_RECOVERED;
10074 }
10075
10076 /**
10077  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10078  * @pdev: pointer to PCI device
10079  *
10080  * This routine is called from the PCI subsystem for error handling to device
10081  * with SLI-3 interface spec. It is called when kernel error recovery tells
10082  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10083  * error recovery. After this call, traffic can start to flow from this device
10084  * again.
10085  */
10086 static void
10087 lpfc_io_resume_s3(struct pci_dev *pdev)
10088 {
10089         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10090         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10091
10092         /* Bring device online, it will be no-op for non-fatal error resume */
10093         lpfc_online(phba);
10094
10095         /* Clean up Advanced Error Reporting (AER) if needed */
10096         if (phba->hba_flag & HBA_AER_ENABLED)
10097                 pci_cleanup_aer_uncorrect_error_status(pdev);
10098 }
10099
10100 /**
10101  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10102  * @phba: pointer to lpfc hba data structure.
10103  *
10104  * returns the number of ELS/CT IOCBs to reserve
10105  **/
10106 int
10107 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10108 {
10109         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10110
10111         if (phba->sli_rev == LPFC_SLI_REV4) {
10112                 if (max_xri <= 100)
10113                         return 10;
10114                 else if (max_xri <= 256)
10115                         return 25;
10116                 else if (max_xri <= 512)
10117                         return 50;
10118                 else if (max_xri <= 1024)
10119                         return 100;
10120                 else if (max_xri <= 1536)
10121                         return 150;
10122                 else if (max_xri <= 2048)
10123                         return 200;
10124                 else
10125                         return 250;
10126         } else
10127                 return 0;
10128 }
10129
10130 /**
10131  * lpfc_write_firmware - attempt to write a firmware image to the port
10132  * @fw: pointer to firmware image returned from request_firmware.
10133  * @phba: pointer to lpfc hba data structure.
10134  *
10135  **/
10136 static void
10137 lpfc_write_firmware(const struct firmware *fw, void *context)
10138 {
10139         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10140         char fwrev[FW_REV_STR_SIZE];
10141         struct lpfc_grp_hdr *image;
10142         struct list_head dma_buffer_list;
10143         int i, rc = 0;
10144         struct lpfc_dmabuf *dmabuf, *next;
10145         uint32_t offset = 0, temp_offset = 0;
10146
10147         /* It can be null in no-wait mode, sanity check */
10148         if (!fw) {
10149                 rc = -ENXIO;
10150                 goto out;
10151         }
10152         image = (struct lpfc_grp_hdr *)fw->data;
10153
10154         INIT_LIST_HEAD(&dma_buffer_list);
10155         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10156             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10157              LPFC_FILE_TYPE_GROUP) ||
10158             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10159             (be32_to_cpu(image->size) != fw->size)) {
10160                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10161                                 "3022 Invalid FW image found. "
10162                                 "Magic:%x Type:%x ID:%x\n",
10163                                 be32_to_cpu(image->magic_number),
10164                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10165                                 bf_get_be32(lpfc_grp_hdr_id, image));
10166                 rc = -EINVAL;
10167                 goto release_out;
10168         }
10169         lpfc_decode_firmware_rev(phba, fwrev, 1);
10170         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10171                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10172                                 "3023 Updating Firmware, Current Version:%s "
10173                                 "New Version:%s\n",
10174                                 fwrev, image->revision);
10175                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10176                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10177                                          GFP_KERNEL);
10178                         if (!dmabuf) {
10179                                 rc = -ENOMEM;
10180                                 goto release_out;
10181                         }
10182                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10183                                                           SLI4_PAGE_SIZE,
10184                                                           &dmabuf->phys,
10185                                                           GFP_KERNEL);
10186                         if (!dmabuf->virt) {
10187                                 kfree(dmabuf);
10188                                 rc = -ENOMEM;
10189                                 goto release_out;
10190                         }
10191                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10192                 }
10193                 while (offset < fw->size) {
10194                         temp_offset = offset;
10195                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10196                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10197                                         memcpy(dmabuf->virt,
10198                                                fw->data + temp_offset,
10199                                                fw->size - temp_offset);
10200                                         temp_offset = fw->size;
10201                                         break;
10202                                 }
10203                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10204                                        SLI4_PAGE_SIZE);
10205                                 temp_offset += SLI4_PAGE_SIZE;
10206                         }
10207                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10208                                     (fw->size - offset), &offset);
10209                         if (rc)
10210                                 goto release_out;
10211                 }
10212                 rc = offset;
10213         }
10214
10215 release_out:
10216         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10217                 list_del(&dmabuf->list);
10218                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10219                                   dmabuf->virt, dmabuf->phys);
10220                 kfree(dmabuf);
10221         }
10222         release_firmware(fw);
10223 out:
10224         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10225                         "3024 Firmware update done: %d.\n", rc);
10226         return;
10227 }
10228
10229 /**
10230  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10231  * @phba: pointer to lpfc hba data structure.
10232  *
10233  * This routine is called to perform Linux generic firmware upgrade on device
10234  * that supports such feature.
10235  **/
10236 int
10237 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10238 {
10239         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10240         int ret;
10241         const struct firmware *fw;
10242
10243         /* Only supported on SLI4 interface type 2 for now */
10244         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10245             LPFC_SLI_INTF_IF_TYPE_2)
10246                 return -EPERM;
10247
10248         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10249
10250         if (fw_upgrade == INT_FW_UPGRADE) {
10251                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10252                                         file_name, &phba->pcidev->dev,
10253                                         GFP_KERNEL, (void *)phba,
10254                                         lpfc_write_firmware);
10255         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10256                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10257                 if (!ret)
10258                         lpfc_write_firmware(fw, (void *)phba);
10259         } else {
10260                 ret = -EINVAL;
10261         }
10262
10263         return ret;
10264 }
10265
10266 /**
10267  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10268  * @pdev: pointer to PCI device
10269  * @pid: pointer to PCI device identifier
10270  *
10271  * This routine is called from the kernel's PCI subsystem to device with
10272  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10273  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10274  * information of the device and driver to see if the driver state that it
10275  * can support this kind of device. If the match is successful, the driver
10276  * core invokes this routine. If this routine determines it can claim the HBA,
10277  * it does all the initialization that it needs to do to handle the HBA
10278  * properly.
10279  *
10280  * Return code
10281  *      0 - driver can claim the device
10282  *      negative value - driver can not claim the device
10283  **/
10284 static int
10285 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10286 {
10287         struct lpfc_hba   *phba;
10288         struct lpfc_vport *vport = NULL;
10289         struct Scsi_Host  *shost = NULL;
10290         int error, ret;
10291         uint32_t cfg_mode, intr_mode;
10292         int adjusted_fcp_io_channel;
10293
10294         /* Allocate memory for HBA structure */
10295         phba = lpfc_hba_alloc(pdev);
10296         if (!phba)
10297                 return -ENOMEM;
10298
10299         /* Perform generic PCI device enabling operation */
10300         error = lpfc_enable_pci_dev(phba);
10301         if (error)
10302                 goto out_free_phba;
10303
10304         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10305         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10306         if (error)
10307                 goto out_disable_pci_dev;
10308
10309         /* Set up SLI-4 specific device PCI memory space */
10310         error = lpfc_sli4_pci_mem_setup(phba);
10311         if (error) {
10312                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10313                                 "1410 Failed to set up pci memory space.\n");
10314                 goto out_disable_pci_dev;
10315         }
10316
10317         /* Set up phase-1 common device driver resources */
10318         error = lpfc_setup_driver_resource_phase1(phba);
10319         if (error) {
10320                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10321                                 "1411 Failed to set up driver resource.\n");
10322                 goto out_unset_pci_mem_s4;
10323         }
10324
10325         /* Set up SLI-4 Specific device driver resources */
10326         error = lpfc_sli4_driver_resource_setup(phba);
10327         if (error) {
10328                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10329                                 "1412 Failed to set up driver resource.\n");
10330                 goto out_unset_pci_mem_s4;
10331         }
10332
10333         /* Initialize and populate the iocb list per host */
10334
10335         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10336                         "2821 initialize iocb list %d.\n",
10337                         phba->cfg_iocb_cnt*1024);
10338         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10339
10340         if (error) {
10341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10342                                 "1413 Failed to initialize iocb list.\n");
10343                 goto out_unset_driver_resource_s4;
10344         }
10345
10346         INIT_LIST_HEAD(&phba->active_rrq_list);
10347         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10348
10349         /* Set up common device driver resources */
10350         error = lpfc_setup_driver_resource_phase2(phba);
10351         if (error) {
10352                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10353                                 "1414 Failed to set up driver resource.\n");
10354                 goto out_free_iocb_list;
10355         }
10356
10357         /* Get the default values for Model Name and Description */
10358         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10359
10360         /* Create SCSI host to the physical port */
10361         error = lpfc_create_shost(phba);
10362         if (error) {
10363                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10364                                 "1415 Failed to create scsi host.\n");
10365                 goto out_unset_driver_resource;
10366         }
10367
10368         /* Configure sysfs attributes */
10369         vport = phba->pport;
10370         error = lpfc_alloc_sysfs_attr(vport);
10371         if (error) {
10372                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10373                                 "1416 Failed to allocate sysfs attr\n");
10374                 goto out_destroy_shost;
10375         }
10376
10377         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10378         /* Now, trying to enable interrupt and bring up the device */
10379         cfg_mode = phba->cfg_use_msi;
10380
10381         /* Put device to a known state before enabling interrupt */
10382         lpfc_stop_port(phba);
10383         /* Configure and enable interrupt */
10384         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10385         if (intr_mode == LPFC_INTR_ERROR) {
10386                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10387                                 "0426 Failed to enable interrupt.\n");
10388                 error = -ENODEV;
10389                 goto out_free_sysfs_attr;
10390         }
10391         /* Default to single EQ for non-MSI-X */
10392         if (phba->intr_type != MSIX)
10393                 adjusted_fcp_io_channel = 1;
10394         else
10395                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10396         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10397         /* Set up SLI-4 HBA */
10398         if (lpfc_sli4_hba_setup(phba)) {
10399                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10400                                 "1421 Failed to set up hba\n");
10401                 error = -ENODEV;
10402                 goto out_disable_intr;
10403         }
10404
10405         /* Log the current active interrupt mode */
10406         phba->intr_mode = intr_mode;
10407         lpfc_log_intr_mode(phba, intr_mode);
10408
10409         /* Perform post initialization setup */
10410         lpfc_post_init_setup(phba);
10411
10412         /* check for firmware upgrade or downgrade */
10413         if (phba->cfg_request_firmware_upgrade)
10414                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10415
10416         /* Check if there are static vports to be created. */
10417         lpfc_create_static_vport(phba);
10418         return 0;
10419
10420 out_disable_intr:
10421         lpfc_sli4_disable_intr(phba);
10422 out_free_sysfs_attr:
10423         lpfc_free_sysfs_attr(vport);
10424 out_destroy_shost:
10425         lpfc_destroy_shost(phba);
10426 out_unset_driver_resource:
10427         lpfc_unset_driver_resource_phase2(phba);
10428 out_free_iocb_list:
10429         lpfc_free_iocb_list(phba);
10430 out_unset_driver_resource_s4:
10431         lpfc_sli4_driver_resource_unset(phba);
10432 out_unset_pci_mem_s4:
10433         lpfc_sli4_pci_mem_unset(phba);
10434 out_disable_pci_dev:
10435         lpfc_disable_pci_dev(phba);
10436         if (shost)
10437                 scsi_host_put(shost);
10438 out_free_phba:
10439         lpfc_hba_free(phba);
10440         return error;
10441 }
10442
10443 /**
10444  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10445  * @pdev: pointer to PCI device
10446  *
10447  * This routine is called from the kernel's PCI subsystem to device with
10448  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10449  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10450  * device to be removed from the PCI subsystem properly.
10451  **/
10452 static void
10453 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10454 {
10455         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10456         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10457         struct lpfc_vport **vports;
10458         struct lpfc_hba *phba = vport->phba;
10459         int i;
10460
10461         /* Mark the device unloading flag */
10462         spin_lock_irq(&phba->hbalock);
10463         vport->load_flag |= FC_UNLOADING;
10464         spin_unlock_irq(&phba->hbalock);
10465
10466         /* Free the HBA sysfs attributes */
10467         lpfc_free_sysfs_attr(vport);
10468
10469         /* Release all the vports against this physical port */
10470         vports = lpfc_create_vport_work_array(phba);
10471         if (vports != NULL)
10472                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10473                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10474                                 continue;
10475                         fc_vport_terminate(vports[i]->fc_vport);
10476                 }
10477         lpfc_destroy_vport_work_array(phba, vports);
10478
10479         /* Remove FC host and then SCSI host with the physical port */
10480         fc_remove_host(shost);
10481         scsi_remove_host(shost);
10482
10483         /* Perform cleanup on the physical port */
10484         lpfc_cleanup(vport);
10485
10486         /*
10487          * Bring down the SLI Layer. This step disables all interrupts,
10488          * clears the rings, discards all mailbox commands, and resets
10489          * the HBA FCoE function.
10490          */
10491         lpfc_debugfs_terminate(vport);
10492         lpfc_sli4_hba_unset(phba);
10493
10494         spin_lock_irq(&phba->hbalock);
10495         list_del_init(&vport->listentry);
10496         spin_unlock_irq(&phba->hbalock);
10497
10498         /* Perform scsi free before driver resource_unset since scsi
10499          * buffers are released to their corresponding pools here.
10500          */
10501         lpfc_scsi_free(phba);
10502
10503         lpfc_sli4_driver_resource_unset(phba);
10504
10505         /* Unmap adapter Control and Doorbell registers */
10506         lpfc_sli4_pci_mem_unset(phba);
10507
10508         /* Release PCI resources and disable device's PCI function */
10509         scsi_host_put(shost);
10510         lpfc_disable_pci_dev(phba);
10511
10512         /* Finally, free the driver's device data structure */
10513         lpfc_hba_free(phba);
10514
10515         return;
10516 }
10517
10518 /**
10519  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10520  * @pdev: pointer to PCI device
10521  * @msg: power management message
10522  *
10523  * This routine is called from the kernel's PCI subsystem to support system
10524  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10525  * this method, it quiesces the device by stopping the driver's worker
10526  * thread for the device, turning off device's interrupt and DMA, and bring
10527  * the device offline. Note that as the driver implements the minimum PM
10528  * requirements to a power-aware driver's PM support for suspend/resume -- all
10529  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10530  * method call will be treated as SUSPEND and the driver will fully
10531  * reinitialize its device during resume() method call, the driver will set
10532  * device to PCI_D3hot state in PCI config space instead of setting it
10533  * according to the @msg provided by the PM.
10534  *
10535  * Return code
10536  *      0 - driver suspended the device
10537  *      Error otherwise
10538  **/
10539 static int
10540 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10541 {
10542         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10543         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10544
10545         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10546                         "2843 PCI device Power Management suspend.\n");
10547
10548         /* Bring down the device */
10549         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10550         lpfc_offline(phba);
10551         kthread_stop(phba->worker_thread);
10552
10553         /* Disable interrupt from device */
10554         lpfc_sli4_disable_intr(phba);
10555         lpfc_sli4_queue_destroy(phba);
10556
10557         /* Save device state to PCI config space */
10558         pci_save_state(pdev);
10559         pci_set_power_state(pdev, PCI_D3hot);
10560
10561         return 0;
10562 }
10563
10564 /**
10565  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10566  * @pdev: pointer to PCI device
10567  *
10568  * This routine is called from the kernel's PCI subsystem to support system
10569  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10570  * this method, it restores the device's PCI config space state and fully
10571  * reinitializes the device and brings it online. Note that as the driver
10572  * implements the minimum PM requirements to a power-aware driver's PM for
10573  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10574  * to the suspend() method call will be treated as SUSPEND and the driver
10575  * will fully reinitialize its device during resume() method call, the device
10576  * will be set to PCI_D0 directly in PCI config space before restoring the
10577  * state.
10578  *
10579  * Return code
10580  *      0 - driver suspended the device
10581  *      Error otherwise
10582  **/
10583 static int
10584 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10585 {
10586         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10587         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10588         uint32_t intr_mode;
10589         int error;
10590
10591         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10592                         "0292 PCI device Power Management resume.\n");
10593
10594         /* Restore device state from PCI config space */
10595         pci_set_power_state(pdev, PCI_D0);
10596         pci_restore_state(pdev);
10597
10598         /*
10599          * As the new kernel behavior of pci_restore_state() API call clears
10600          * device saved_state flag, need to save the restored state again.
10601          */
10602         pci_save_state(pdev);
10603
10604         if (pdev->is_busmaster)
10605                 pci_set_master(pdev);
10606
10607          /* Startup the kernel thread for this host adapter. */
10608         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10609                                         "lpfc_worker_%d", phba->brd_no);
10610         if (IS_ERR(phba->worker_thread)) {
10611                 error = PTR_ERR(phba->worker_thread);
10612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10613                                 "0293 PM resume failed to start worker "
10614                                 "thread: error=x%x.\n", error);
10615                 return error;
10616         }
10617
10618         /* Configure and enable interrupt */
10619         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10620         if (intr_mode == LPFC_INTR_ERROR) {
10621                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10622                                 "0294 PM resume Failed to enable interrupt\n");
10623                 return -EIO;
10624         } else
10625                 phba->intr_mode = intr_mode;
10626
10627         /* Restart HBA and bring it online */
10628         lpfc_sli_brdrestart(phba);
10629         lpfc_online(phba);
10630
10631         /* Log the current active interrupt mode */
10632         lpfc_log_intr_mode(phba, phba->intr_mode);
10633
10634         return 0;
10635 }
10636
10637 /**
10638  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10639  * @phba: pointer to lpfc hba data structure.
10640  *
10641  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10642  * aborts all the outstanding SCSI I/Os to the pci device.
10643  **/
10644 static void
10645 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10646 {
10647         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10648                         "2828 PCI channel I/O abort preparing for recovery\n");
10649         /*
10650          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10651          * and let the SCSI mid-layer to retry them to recover.
10652          */
10653         lpfc_sli_abort_fcp_rings(phba);
10654 }
10655
10656 /**
10657  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10658  * @phba: pointer to lpfc hba data structure.
10659  *
10660  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10661  * disables the device interrupt and pci device, and aborts the internal FCP
10662  * pending I/Os.
10663  **/
10664 static void
10665 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10666 {
10667         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10668                         "2826 PCI channel disable preparing for reset\n");
10669
10670         /* Block any management I/Os to the device */
10671         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10672
10673         /* Block all SCSI devices' I/Os on the host */
10674         lpfc_scsi_dev_block(phba);
10675
10676         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10677         lpfc_sli_flush_fcp_rings(phba);
10678
10679         /* stop all timers */
10680         lpfc_stop_hba_timers(phba);
10681
10682         /* Disable interrupt and pci device */
10683         lpfc_sli4_disable_intr(phba);
10684         lpfc_sli4_queue_destroy(phba);
10685         pci_disable_device(phba->pcidev);
10686 }
10687
10688 /**
10689  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10690  * @phba: pointer to lpfc hba data structure.
10691  *
10692  * This routine is called to prepare the SLI4 device for PCI slot permanently
10693  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10694  * pending I/Os.
10695  **/
10696 static void
10697 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10698 {
10699         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10700                         "2827 PCI channel permanent disable for failure\n");
10701
10702         /* Block all SCSI devices' I/Os on the host */
10703         lpfc_scsi_dev_block(phba);
10704
10705         /* stop all timers */
10706         lpfc_stop_hba_timers(phba);
10707
10708         /* Clean up all driver's outstanding SCSI I/Os */
10709         lpfc_sli_flush_fcp_rings(phba);
10710 }
10711
10712 /**
10713  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10714  * @pdev: pointer to PCI device.
10715  * @state: the current PCI connection state.
10716  *
10717  * This routine is called from the PCI subsystem for error handling to device
10718  * with SLI-4 interface spec. This function is called by the PCI subsystem
10719  * after a PCI bus error affecting this device has been detected. When this
10720  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10721  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10722  * for the PCI subsystem to perform proper recovery as desired.
10723  *
10724  * Return codes
10725  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10726  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10727  **/
10728 static pci_ers_result_t
10729 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10730 {
10731         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10732         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10733
10734         switch (state) {
10735         case pci_channel_io_normal:
10736                 /* Non-fatal error, prepare for recovery */
10737                 lpfc_sli4_prep_dev_for_recover(phba);
10738                 return PCI_ERS_RESULT_CAN_RECOVER;
10739         case pci_channel_io_frozen:
10740                 /* Fatal error, prepare for slot reset */
10741                 lpfc_sli4_prep_dev_for_reset(phba);
10742                 return PCI_ERS_RESULT_NEED_RESET;
10743         case pci_channel_io_perm_failure:
10744                 /* Permanent failure, prepare for device down */
10745                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10746                 return PCI_ERS_RESULT_DISCONNECT;
10747         default:
10748                 /* Unknown state, prepare and request slot reset */
10749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10750                                 "2825 Unknown PCI error state: x%x\n", state);
10751                 lpfc_sli4_prep_dev_for_reset(phba);
10752                 return PCI_ERS_RESULT_NEED_RESET;
10753         }
10754 }
10755
10756 /**
10757  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10758  * @pdev: pointer to PCI device.
10759  *
10760  * This routine is called from the PCI subsystem for error handling to device
10761  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10762  * restart the PCI card from scratch, as if from a cold-boot. During the
10763  * PCI subsystem error recovery, after the driver returns
10764  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10765  * recovery and then call this routine before calling the .resume method to
10766  * recover the device. This function will initialize the HBA device, enable
10767  * the interrupt, but it will just put the HBA to offline state without
10768  * passing any I/O traffic.
10769  *
10770  * Return codes
10771  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10772  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10773  */
10774 static pci_ers_result_t
10775 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10776 {
10777         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10778         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10779         struct lpfc_sli *psli = &phba->sli;
10780         uint32_t intr_mode;
10781
10782         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10783         if (pci_enable_device_mem(pdev)) {
10784                 printk(KERN_ERR "lpfc: Cannot re-enable "
10785                         "PCI device after reset.\n");
10786                 return PCI_ERS_RESULT_DISCONNECT;
10787         }
10788
10789         pci_restore_state(pdev);
10790
10791         /*
10792          * As the new kernel behavior of pci_restore_state() API call clears
10793          * device saved_state flag, need to save the restored state again.
10794          */
10795         pci_save_state(pdev);
10796
10797         if (pdev->is_busmaster)
10798                 pci_set_master(pdev);
10799
10800         spin_lock_irq(&phba->hbalock);
10801         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10802         spin_unlock_irq(&phba->hbalock);
10803
10804         /* Configure and enable interrupt */
10805         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10806         if (intr_mode == LPFC_INTR_ERROR) {
10807                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10808                                 "2824 Cannot re-enable interrupt after "
10809                                 "slot reset.\n");
10810                 return PCI_ERS_RESULT_DISCONNECT;
10811         } else
10812                 phba->intr_mode = intr_mode;
10813
10814         /* Log the current active interrupt mode */
10815         lpfc_log_intr_mode(phba, phba->intr_mode);
10816
10817         return PCI_ERS_RESULT_RECOVERED;
10818 }
10819
10820 /**
10821  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10822  * @pdev: pointer to PCI device
10823  *
10824  * This routine is called from the PCI subsystem for error handling to device
10825  * with SLI-4 interface spec. It is called when kernel error recovery tells
10826  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10827  * error recovery. After this call, traffic can start to flow from this device
10828  * again.
10829  **/
10830 static void
10831 lpfc_io_resume_s4(struct pci_dev *pdev)
10832 {
10833         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10834         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10835
10836         /*
10837          * In case of slot reset, as function reset is performed through
10838          * mailbox command which needs DMA to be enabled, this operation
10839          * has to be moved to the io resume phase. Taking device offline
10840          * will perform the necessary cleanup.
10841          */
10842         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10843                 /* Perform device reset */
10844                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10845                 lpfc_offline(phba);
10846                 lpfc_sli_brdrestart(phba);
10847                 /* Bring the device back online */
10848                 lpfc_online(phba);
10849         }
10850
10851         /* Clean up Advanced Error Reporting (AER) if needed */
10852         if (phba->hba_flag & HBA_AER_ENABLED)
10853                 pci_cleanup_aer_uncorrect_error_status(pdev);
10854 }
10855
10856 /**
10857  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10858  * @pdev: pointer to PCI device
10859  * @pid: pointer to PCI device identifier
10860  *
10861  * This routine is to be registered to the kernel's PCI subsystem. When an
10862  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10863  * at PCI device-specific information of the device and driver to see if the
10864  * driver state that it can support this kind of device. If the match is
10865  * successful, the driver core invokes this routine. This routine dispatches
10866  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10867  * do all the initialization that it needs to do to handle the HBA device
10868  * properly.
10869  *
10870  * Return code
10871  *      0 - driver can claim the device
10872  *      negative value - driver can not claim the device
10873  **/
10874 static int
10875 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10876 {
10877         int rc;
10878         struct lpfc_sli_intf intf;
10879
10880         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10881                 return -ENODEV;
10882
10883         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10884             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10885                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10886         else
10887                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10888
10889         return rc;
10890 }
10891
10892 /**
10893  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10894  * @pdev: pointer to PCI device
10895  *
10896  * This routine is to be registered to the kernel's PCI subsystem. When an
10897  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10898  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10899  * remove routine, which will perform all the necessary cleanup for the
10900  * device to be removed from the PCI subsystem properly.
10901  **/
10902 static void
10903 lpfc_pci_remove_one(struct pci_dev *pdev)
10904 {
10905         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10906         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10907
10908         switch (phba->pci_dev_grp) {
10909         case LPFC_PCI_DEV_LP:
10910                 lpfc_pci_remove_one_s3(pdev);
10911                 break;
10912         case LPFC_PCI_DEV_OC:
10913                 lpfc_pci_remove_one_s4(pdev);
10914                 break;
10915         default:
10916                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10917                                 "1424 Invalid PCI device group: 0x%x\n",
10918                                 phba->pci_dev_grp);
10919                 break;
10920         }
10921         return;
10922 }
10923
10924 /**
10925  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10926  * @pdev: pointer to PCI device
10927  * @msg: power management message
10928  *
10929  * This routine is to be registered to the kernel's PCI subsystem to support
10930  * system Power Management (PM). When PM invokes this method, it dispatches
10931  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10932  * suspend the device.
10933  *
10934  * Return code
10935  *      0 - driver suspended the device
10936  *      Error otherwise
10937  **/
10938 static int
10939 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10940 {
10941         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10942         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10943         int rc = -ENODEV;
10944
10945         switch (phba->pci_dev_grp) {
10946         case LPFC_PCI_DEV_LP:
10947                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10948                 break;
10949         case LPFC_PCI_DEV_OC:
10950                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10951                 break;
10952         default:
10953                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10954                                 "1425 Invalid PCI device group: 0x%x\n",
10955                                 phba->pci_dev_grp);
10956                 break;
10957         }
10958         return rc;
10959 }
10960
10961 /**
10962  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10963  * @pdev: pointer to PCI device
10964  *
10965  * This routine is to be registered to the kernel's PCI subsystem to support
10966  * system Power Management (PM). When PM invokes this method, it dispatches
10967  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10968  * resume the device.
10969  *
10970  * Return code
10971  *      0 - driver suspended the device
10972  *      Error otherwise
10973  **/
10974 static int
10975 lpfc_pci_resume_one(struct pci_dev *pdev)
10976 {
10977         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10978         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10979         int rc = -ENODEV;
10980
10981         switch (phba->pci_dev_grp) {
10982         case LPFC_PCI_DEV_LP:
10983                 rc = lpfc_pci_resume_one_s3(pdev);
10984                 break;
10985         case LPFC_PCI_DEV_OC:
10986                 rc = lpfc_pci_resume_one_s4(pdev);
10987                 break;
10988         default:
10989                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10990                                 "1426 Invalid PCI device group: 0x%x\n",
10991                                 phba->pci_dev_grp);
10992                 break;
10993         }
10994         return rc;
10995 }
10996
10997 /**
10998  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10999  * @pdev: pointer to PCI device.
11000  * @state: the current PCI connection state.
11001  *
11002  * This routine is registered to the PCI subsystem for error handling. This
11003  * function is called by the PCI subsystem after a PCI bus error affecting
11004  * this device has been detected. When this routine is invoked, it dispatches
11005  * the action to the proper SLI-3 or SLI-4 device error detected handling
11006  * routine, which will perform the proper error detected operation.
11007  *
11008  * Return codes
11009  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11010  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11011  **/
11012 static pci_ers_result_t
11013 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11014 {
11015         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11016         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11017         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11018
11019         switch (phba->pci_dev_grp) {
11020         case LPFC_PCI_DEV_LP:
11021                 rc = lpfc_io_error_detected_s3(pdev, state);
11022                 break;
11023         case LPFC_PCI_DEV_OC:
11024                 rc = lpfc_io_error_detected_s4(pdev, state);
11025                 break;
11026         default:
11027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11028                                 "1427 Invalid PCI device group: 0x%x\n",
11029                                 phba->pci_dev_grp);
11030                 break;
11031         }
11032         return rc;
11033 }
11034
11035 /**
11036  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11037  * @pdev: pointer to PCI device.
11038  *
11039  * This routine is registered to the PCI subsystem for error handling. This
11040  * function is called after PCI bus has been reset to restart the PCI card
11041  * from scratch, as if from a cold-boot. When this routine is invoked, it
11042  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11043  * routine, which will perform the proper device reset.
11044  *
11045  * Return codes
11046  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11047  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11048  **/
11049 static pci_ers_result_t
11050 lpfc_io_slot_reset(struct pci_dev *pdev)
11051 {
11052         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11053         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11054         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11055
11056         switch (phba->pci_dev_grp) {
11057         case LPFC_PCI_DEV_LP:
11058                 rc = lpfc_io_slot_reset_s3(pdev);
11059                 break;
11060         case LPFC_PCI_DEV_OC:
11061                 rc = lpfc_io_slot_reset_s4(pdev);
11062                 break;
11063         default:
11064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11065                                 "1428 Invalid PCI device group: 0x%x\n",
11066                                 phba->pci_dev_grp);
11067                 break;
11068         }
11069         return rc;
11070 }
11071
11072 /**
11073  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11074  * @pdev: pointer to PCI device
11075  *
11076  * This routine is registered to the PCI subsystem for error handling. It
11077  * is called when kernel error recovery tells the lpfc driver that it is
11078  * OK to resume normal PCI operation after PCI bus error recovery. When
11079  * this routine is invoked, it dispatches the action to the proper SLI-3
11080  * or SLI-4 device io_resume routine, which will resume the device operation.
11081  **/
11082 static void
11083 lpfc_io_resume(struct pci_dev *pdev)
11084 {
11085         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11086         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11087
11088         switch (phba->pci_dev_grp) {
11089         case LPFC_PCI_DEV_LP:
11090                 lpfc_io_resume_s3(pdev);
11091                 break;
11092         case LPFC_PCI_DEV_OC:
11093                 lpfc_io_resume_s4(pdev);
11094                 break;
11095         default:
11096                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11097                                 "1429 Invalid PCI device group: 0x%x\n",
11098                                 phba->pci_dev_grp);
11099                 break;
11100         }
11101         return;
11102 }
11103
11104 /**
11105  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11106  * @phba: pointer to lpfc hba data structure.
11107  *
11108  * This routine checks to see if OAS is supported for this adapter. If
11109  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11110  * the enable oas flag is cleared and the pool created for OAS device data
11111  * is destroyed.
11112  *
11113  **/
11114 void
11115 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11116 {
11117
11118         if (!phba->cfg_EnableXLane)
11119                 return;
11120
11121         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11122                 phba->cfg_fof = 1;
11123         } else {
11124                 phba->cfg_fof = 0;
11125                 if (phba->device_data_mem_pool)
11126                         mempool_destroy(phba->device_data_mem_pool);
11127                 phba->device_data_mem_pool = NULL;
11128         }
11129
11130         return;
11131 }
11132
11133 /**
11134  * lpfc_fof_queue_setup - Set up all the fof queues
11135  * @phba: pointer to lpfc hba data structure.
11136  *
11137  * This routine is invoked to set up all the fof queues for the FC HBA
11138  * operation.
11139  *
11140  * Return codes
11141  *      0 - successful
11142  *      -ENOMEM - No available memory
11143  **/
11144 int
11145 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11146 {
11147         struct lpfc_sli *psli = &phba->sli;
11148         int rc;
11149
11150         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11151         if (rc)
11152                 return -ENOMEM;
11153
11154         if (phba->cfg_fof) {
11155
11156                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11157                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11158                 if (rc)
11159                         goto out_oas_cq;
11160
11161                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11162                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11163                 if (rc)
11164                         goto out_oas_wq;
11165
11166                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11167                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11168         }
11169
11170         return 0;
11171
11172 out_oas_wq:
11173         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11174 out_oas_cq:
11175         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11176         return rc;
11177
11178 }
11179
11180 /**
11181  * lpfc_fof_queue_create - Create all the fof queues
11182  * @phba: pointer to lpfc hba data structure.
11183  *
11184  * This routine is invoked to allocate all the fof queues for the FC HBA
11185  * operation. For each SLI4 queue type, the parameters such as queue entry
11186  * count (queue depth) shall be taken from the module parameter. For now,
11187  * we just use some constant number as place holder.
11188  *
11189  * Return codes
11190  *      0 - successful
11191  *      -ENOMEM - No availble memory
11192  *      -EIO - The mailbox failed to complete successfully.
11193  **/
11194 int
11195 lpfc_fof_queue_create(struct lpfc_hba *phba)
11196 {
11197         struct lpfc_queue *qdesc;
11198
11199         /* Create FOF EQ */
11200         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11201                                       phba->sli4_hba.eq_ecount);
11202         if (!qdesc)
11203                 goto out_error;
11204
11205         phba->sli4_hba.fof_eq = qdesc;
11206
11207         if (phba->cfg_fof) {
11208
11209                 /* Create OAS CQ */
11210                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11211                                                       phba->sli4_hba.cq_ecount);
11212                 if (!qdesc)
11213                         goto out_error;
11214
11215                 phba->sli4_hba.oas_cq = qdesc;
11216
11217                 /* Create OAS WQ */
11218                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11219                                               phba->sli4_hba.wq_ecount);
11220                 if (!qdesc)
11221                         goto out_error;
11222
11223                 phba->sli4_hba.oas_wq = qdesc;
11224
11225         }
11226         return 0;
11227
11228 out_error:
11229         lpfc_fof_queue_destroy(phba);
11230         return -ENOMEM;
11231 }
11232
11233 /**
11234  * lpfc_fof_queue_destroy - Destroy all the fof queues
11235  * @phba: pointer to lpfc hba data structure.
11236  *
11237  * This routine is invoked to release all the SLI4 queues with the FC HBA
11238  * operation.
11239  *
11240  * Return codes
11241  *      0 - successful
11242  **/
11243 int
11244 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11245 {
11246         /* Release FOF Event queue */
11247         if (phba->sli4_hba.fof_eq != NULL) {
11248                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11249                 phba->sli4_hba.fof_eq = NULL;
11250         }
11251
11252         /* Release OAS Completion queue */
11253         if (phba->sli4_hba.oas_cq != NULL) {
11254                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11255                 phba->sli4_hba.oas_cq = NULL;
11256         }
11257
11258         /* Release OAS Work queue */
11259         if (phba->sli4_hba.oas_wq != NULL) {
11260                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11261                 phba->sli4_hba.oas_wq = NULL;
11262         }
11263         return 0;
11264 }
11265
11266 static struct pci_device_id lpfc_id_table[] = {
11267         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11268                 PCI_ANY_ID, PCI_ANY_ID, },
11269         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11270                 PCI_ANY_ID, PCI_ANY_ID, },
11271         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11272                 PCI_ANY_ID, PCI_ANY_ID, },
11273         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11274                 PCI_ANY_ID, PCI_ANY_ID, },
11275         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11276                 PCI_ANY_ID, PCI_ANY_ID, },
11277         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11278                 PCI_ANY_ID, PCI_ANY_ID, },
11279         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11280                 PCI_ANY_ID, PCI_ANY_ID, },
11281         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11282                 PCI_ANY_ID, PCI_ANY_ID, },
11283         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11284                 PCI_ANY_ID, PCI_ANY_ID, },
11285         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11286                 PCI_ANY_ID, PCI_ANY_ID, },
11287         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11288                 PCI_ANY_ID, PCI_ANY_ID, },
11289         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11290                 PCI_ANY_ID, PCI_ANY_ID, },
11291         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11292                 PCI_ANY_ID, PCI_ANY_ID, },
11293         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11294                 PCI_ANY_ID, PCI_ANY_ID, },
11295         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11296                 PCI_ANY_ID, PCI_ANY_ID, },
11297         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11298                 PCI_ANY_ID, PCI_ANY_ID, },
11299         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11300                 PCI_ANY_ID, PCI_ANY_ID, },
11301         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11302                 PCI_ANY_ID, PCI_ANY_ID, },
11303         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11304                 PCI_ANY_ID, PCI_ANY_ID, },
11305         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11306                 PCI_ANY_ID, PCI_ANY_ID, },
11307         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11308                 PCI_ANY_ID, PCI_ANY_ID, },
11309         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11310                 PCI_ANY_ID, PCI_ANY_ID, },
11311         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11312                 PCI_ANY_ID, PCI_ANY_ID, },
11313         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11314                 PCI_ANY_ID, PCI_ANY_ID, },
11315         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11316                 PCI_ANY_ID, PCI_ANY_ID, },
11317         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11318                 PCI_ANY_ID, PCI_ANY_ID, },
11319         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11320                 PCI_ANY_ID, PCI_ANY_ID, },
11321         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11322                 PCI_ANY_ID, PCI_ANY_ID, },
11323         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11324                 PCI_ANY_ID, PCI_ANY_ID, },
11325         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11326                 PCI_ANY_ID, PCI_ANY_ID, },
11327         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11328                 PCI_ANY_ID, PCI_ANY_ID, },
11329         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11330                 PCI_ANY_ID, PCI_ANY_ID, },
11331         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11332                 PCI_ANY_ID, PCI_ANY_ID, },
11333         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11334                 PCI_ANY_ID, PCI_ANY_ID, },
11335         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11336                 PCI_ANY_ID, PCI_ANY_ID, },
11337         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11338                 PCI_ANY_ID, PCI_ANY_ID, },
11339         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11340                 PCI_ANY_ID, PCI_ANY_ID, },
11341         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11342                 PCI_ANY_ID, PCI_ANY_ID, },
11343         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11344                 PCI_ANY_ID, PCI_ANY_ID, },
11345         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11346                 PCI_ANY_ID, PCI_ANY_ID, },
11347         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11348                 PCI_ANY_ID, PCI_ANY_ID, },
11349         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11350                 PCI_ANY_ID, PCI_ANY_ID, },
11351         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11352                 PCI_ANY_ID, PCI_ANY_ID, },
11353         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11354                 PCI_ANY_ID, PCI_ANY_ID, },
11355         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11356                 PCI_ANY_ID, PCI_ANY_ID, },
11357         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11358                 PCI_ANY_ID, PCI_ANY_ID, },
11359         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11360                 PCI_ANY_ID, PCI_ANY_ID, },
11361         { 0 }
11362 };
11363
11364 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11365
11366 static const struct pci_error_handlers lpfc_err_handler = {
11367         .error_detected = lpfc_io_error_detected,
11368         .slot_reset = lpfc_io_slot_reset,
11369         .resume = lpfc_io_resume,
11370 };
11371
11372 static struct pci_driver lpfc_driver = {
11373         .name           = LPFC_DRIVER_NAME,
11374         .id_table       = lpfc_id_table,
11375         .probe          = lpfc_pci_probe_one,
11376         .remove         = lpfc_pci_remove_one,
11377         .suspend        = lpfc_pci_suspend_one,
11378         .resume         = lpfc_pci_resume_one,
11379         .err_handler    = &lpfc_err_handler,
11380 };
11381
11382 static const struct file_operations lpfc_mgmt_fop = {
11383         .owner = THIS_MODULE,
11384 };
11385
11386 static struct miscdevice lpfc_mgmt_dev = {
11387         .minor = MISC_DYNAMIC_MINOR,
11388         .name = "lpfcmgmt",
11389         .fops = &lpfc_mgmt_fop,
11390 };
11391
11392 /**
11393  * lpfc_init - lpfc module initialization routine
11394  *
11395  * This routine is to be invoked when the lpfc module is loaded into the
11396  * kernel. The special kernel macro module_init() is used to indicate the
11397  * role of this routine to the kernel as lpfc module entry point.
11398  *
11399  * Return codes
11400  *   0 - successful
11401  *   -ENOMEM - FC attach transport failed
11402  *   all others - failed
11403  */
11404 static int __init
11405 lpfc_init(void)
11406 {
11407         int cpu;
11408         int error = 0;
11409
11410         printk(LPFC_MODULE_DESC "\n");
11411         printk(LPFC_COPYRIGHT "\n");
11412
11413         error = misc_register(&lpfc_mgmt_dev);
11414         if (error)
11415                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11416                         "misc_register returned with status %d", error);
11417
11418         if (lpfc_enable_npiv) {
11419                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11420                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11421         }
11422         lpfc_transport_template =
11423                                 fc_attach_transport(&lpfc_transport_functions);
11424         if (lpfc_transport_template == NULL)
11425                 return -ENOMEM;
11426         if (lpfc_enable_npiv) {
11427                 lpfc_vport_transport_template =
11428                         fc_attach_transport(&lpfc_vport_transport_functions);
11429                 if (lpfc_vport_transport_template == NULL) {
11430                         fc_release_transport(lpfc_transport_template);
11431                         return -ENOMEM;
11432                 }
11433         }
11434
11435         /* Initialize in case vector mapping is needed */
11436         lpfc_used_cpu = NULL;
11437         lpfc_present_cpu = 0;
11438         for_each_present_cpu(cpu)
11439                 lpfc_present_cpu++;
11440
11441         error = pci_register_driver(&lpfc_driver);
11442         if (error) {
11443                 fc_release_transport(lpfc_transport_template);
11444                 if (lpfc_enable_npiv)
11445                         fc_release_transport(lpfc_vport_transport_template);
11446         }
11447
11448         return error;
11449 }
11450
11451 /**
11452  * lpfc_exit - lpfc module removal routine
11453  *
11454  * This routine is invoked when the lpfc module is removed from the kernel.
11455  * The special kernel macro module_exit() is used to indicate the role of
11456  * this routine to the kernel as lpfc module exit point.
11457  */
11458 static void __exit
11459 lpfc_exit(void)
11460 {
11461         misc_deregister(&lpfc_mgmt_dev);
11462         pci_unregister_driver(&lpfc_driver);
11463         fc_release_transport(lpfc_transport_template);
11464         if (lpfc_enable_npiv)
11465                 fc_release_transport(lpfc_vport_transport_template);
11466         if (_dump_buf_data) {
11467                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11468                                 "_dump_buf_data at 0x%p\n",
11469                                 (1L << _dump_buf_data_order), _dump_buf_data);
11470                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11471         }
11472
11473         if (_dump_buf_dif) {
11474                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11475                                 "_dump_buf_dif at 0x%p\n",
11476                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11477                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11478         }
11479         kfree(lpfc_used_cpu);
11480 }
11481
11482 module_init(lpfc_init);
11483 module_exit(lpfc_exit);
11484 MODULE_LICENSE("GPL");
11485 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11486 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11487 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);