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) 2004-2013 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
  84 static struct scsi_transport_template *lpfc_transport_template = NULL;
  85 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  86 static DEFINE_IDR(lpfc_hba_index);
  87
  88 /**
  89  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  90  * @phba: pointer to lpfc hba data structure.
  91  *
  92  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  93  * mailbox command. It retrieves the revision information from the HBA and
  94  * collects the Vital Product Data (VPD) about the HBA for preparing the
  95  * configuration of the HBA.
  96  *
  97  * Return codes:
  98  *   0 - success.
  99  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 100  *   Any other value - indicates an error.
 101  **/
 102 int
 103 lpfc_config_port_prep(struct lpfc_hba *phba)
 104 {
 105         lpfc_vpd_t *vp = &phba->vpd;
 106         int i = 0, rc;
 107         LPFC_MBOXQ_t *pmb;
 108         MAILBOX_t *mb;
 109         char *lpfc_vpd_data = NULL;
 110         uint16_t offset = 0;
 111         static char licensed[56] =
 112                     "key unlock for use with gnu public licensed code only\0";
 113         static int init_key = 1;
 114
 115         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 116         if (!pmb) {
 117                 phba->link_state = LPFC_HBA_ERROR;
 118                 return -ENOMEM;
 119         }
 120
 121         mb = &pmb->u.mb;
 122         phba->link_state = LPFC_INIT_MBX_CMDS;
 123
 124         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 125                 if (init_key) {
 126                         uint32_t *ptext = (uint32_t *) licensed;
 127
 128                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 129                                 *ptext = cpu_to_be32(*ptext);
 130                         init_key = 0;
 131                 }
 132
 133                 lpfc_read_nv(phba, pmb);
 134                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 135                         sizeof (mb->un.varRDnvp.rsvd3));
 136                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 137                          sizeof (licensed));
 138
 139                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 140
 141                 if (rc != MBX_SUCCESS) {
 142                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 143                                         "0324 Config Port initialization "
 144                                         "error, mbxCmd x%x READ_NVPARM, "
 145                                         "mbxStatus x%x\n",
 146                                         mb->mbxCommand, mb->mbxStatus);
 147                         mempool_free(pmb, phba->mbox_mem_pool);
 148                         return -ERESTART;
 149                 }
 150                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 151                        sizeof(phba->wwnn));
 152                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 153                        sizeof(phba->wwpn));
 154         }
 155
 156         phba->sli3_options = 0x0;
 157
 158         /* Setup and issue mailbox READ REV command */
 159         lpfc_read_rev(phba, pmb);
 160         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 161         if (rc != MBX_SUCCESS) {
 162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 163                                 "0439 Adapter failed to init, mbxCmd x%x "
 164                                 "READ_REV, mbxStatus x%x\n",
 165                                 mb->mbxCommand, mb->mbxStatus);
 166                 mempool_free( pmb, phba->mbox_mem_pool);
 167                 return -ERESTART;
 168         }
 169
 170
 171         /*
 172          * The value of rr must be 1 since the driver set the cv field to 1.
 173          * This setting requires the FW to set all revision fields.
 174          */
 175         if (mb->un.varRdRev.rr == 0) {
 176                 vp->rev.rBit = 0;
 177                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 178                                 "0440 Adapter failed to init, READ_REV has "
 179                                 "missing revision information.\n");
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 185                 mempool_free(pmb, phba->mbox_mem_pool);
 186                 return -EINVAL;
 187         }
 188
 189         /* Save information as VPD data */
 190         vp->rev.rBit = 1;
 191         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 192         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 193         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 194         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 195         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 196         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 197         vp->rev.smRev = mb->un.varRdRev.smRev;
 198         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 199         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 200         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 201         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 202         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 203         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 204         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 205         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 206
 207         /* If the sli feature level is less then 9, we must
 208          * tear down all RPIs and VPIs on link down if NPIV
 209          * is enabled.
 210          */
 211         if (vp->rev.feaLevelHigh < 9)
 212                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 213
 214         if (lpfc_is_LC_HBA(phba->pcidev->device))
 215                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 216                                                 sizeof (phba->RandomData));
 217
 218         /* Get adapter VPD information */
 219         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 220         if (!lpfc_vpd_data)
 221                 goto out_free_mbox;
 222         do {
 223                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 224                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 225
 226                 if (rc != MBX_SUCCESS) {
 227                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 228                                         "0441 VPD not present on adapter, "
 229                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 230                                         mb->mbxCommand, mb->mbxStatus);
 231                         mb->un.varDmp.word_cnt = 0;
 232                 }
 233                 /* dump mem may return a zero when finished or we got a
 234                  * mailbox error, either way we are done.
 235                  */
 236                 if (mb->un.varDmp.word_cnt == 0)
 237                         break;
 238                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 239                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 240                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 241                                       lpfc_vpd_data + offset,
 242                                       mb->un.varDmp.word_cnt);
 243                 offset += mb->un.varDmp.word_cnt;
 244         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 245         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 246
 247         kfree(lpfc_vpd_data);
 248 out_free_mbox:
 249         mempool_free(pmb, phba->mbox_mem_pool);
 250         return 0;
 251 }
 252
 253 /**
 254  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 255  * @phba: pointer to lpfc hba data structure.
 256  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 257  *
 258  * This is the completion handler for driver's configuring asynchronous event
 259  * mailbox command to the device. If the mailbox command returns successfully,
 260  * it will set internal async event support flag to 1; otherwise, it will
 261  * set internal async event support flag to 0.
 262  **/
 263 static void
 264 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 265 {
 266         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 267                 phba->temp_sensor_support = 1;
 268         else
 269                 phba->temp_sensor_support = 0;
 270         mempool_free(pmboxq, phba->mbox_mem_pool);
 271         return;
 272 }
 273
 274 /**
 275  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for dump mailbox command for getting
 280  * wake up parameters. When this command complete, the response contain
 281  * Option rom version of the HBA. This function translate the version number
 282  * into a human readable string and store it in OptionROMVersion.
 283  **/
 284 static void
 285 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 286 {
 287         struct prog_id *prg;
 288         uint32_t prog_id_word;
 289         char dist = ' ';
 290         /* character array used for decoding dist type. */
 291         char dist_char[] = "nabx";
 292
 293         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 294                 mempool_free(pmboxq, phba->mbox_mem_pool);
 295                 return;
 296         }
 297
 298         prg = (struct prog_id *) &prog_id_word;
 299
 300         /* word 7 contain option rom version */
 301         prog_id_word = pmboxq->u.mb.un.varWords[7];
 302
 303         /* Decode the Option rom version word to a readable string */
 304         if (prg->dist < 4)
 305                 dist = dist_char[prg->dist];
 306
 307         if ((prg->dist == 3) && (prg->num == 0))
 308                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 309                         prg->ver, prg->rev, prg->lev);
 310         else
 311                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 312                         prg->ver, prg->rev, prg->lev,
 313                         dist, prg->num);
 314         mempool_free(pmboxq, phba->mbox_mem_pool);
 315         return;
 316 }
 317
 318 /**
 319  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 320  *      cfg_soft_wwnn, cfg_soft_wwpn
 321  * @vport: pointer to lpfc vport data structure.
 322  *
 323  *
 324  * Return codes
 325  *   None.
 326  **/
 327 void
 328 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 329 {
 330         /* If the soft name exists then update it using the service params */
 331         if (vport->phba->cfg_soft_wwnn)
 332                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 333                            vport->fc_sparam.nodeName.u.wwn);
 334         if (vport->phba->cfg_soft_wwpn)
 335                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 336                            vport->fc_sparam.portName.u.wwn);
 337
 338         /*
 339          * If the name is empty or there exists a soft name
 340          * then copy the service params name, otherwise use the fc name
 341          */
 342         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 343                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 347                         sizeof(struct lpfc_name));
 348
 349         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 350                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 351                         sizeof(struct lpfc_name));
 352         else
 353                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 354                         sizeof(struct lpfc_name));
 355 }
 356
 357 /**
 358  * lpfc_config_port_post - Perform lpfc initialization after config port
 359  * @phba: pointer to lpfc hba data structure.
 360  *
 361  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 362  * command call. It performs all internal resource and state setups on the
 363  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 364  * ELS ring timers, etc.
 365  *
 366  * Return codes
 367  *   0 - success.
 368  *   Any other value - error.
 369  **/
 370 int
 371 lpfc_config_port_post(struct lpfc_hba *phba)
 372 {
 373         struct lpfc_vport *vport = phba->pport;
 374         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 375         LPFC_MBOXQ_t *pmb;
 376         MAILBOX_t *mb;
 377         struct lpfc_dmabuf *mp;
 378         struct lpfc_sli *psli = &phba->sli;
 379         uint32_t status, timeout;
 380         int i, j;
 381         int rc;
 382
 383         spin_lock_irq(&phba->hbalock);
 384         /*
 385          * If the Config port completed correctly the HBA is not
 386          * over heated any more.
 387          */
 388         if (phba->over_temp_state == HBA_OVER_TEMP)
 389                 phba->over_temp_state = HBA_NORMAL_TEMP;
 390         spin_unlock_irq(&phba->hbalock);
 391
 392         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 393         if (!pmb) {
 394                 phba->link_state = LPFC_HBA_ERROR;
 395                 return -ENOMEM;
 396         }
 397         mb = &pmb->u.mb;
 398
 399         /* Get login parameters for NID.  */
 400         rc = lpfc_read_sparam(phba, pmb, 0);
 401         if (rc) {
 402                 mempool_free(pmb, phba->mbox_mem_pool);
 403                 return -ENOMEM;
 404         }
 405
 406         pmb->vport = vport;
 407         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 409                                 "0448 Adapter failed init, mbxCmd x%x "
 410                                 "READ_SPARM mbxStatus x%x\n",
 411                                 mb->mbxCommand, mb->mbxStatus);
 412                 phba->link_state = LPFC_HBA_ERROR;
 413                 mp = (struct lpfc_dmabuf *) pmb->context1;
 414                 mempool_free(pmb, phba->mbox_mem_pool);
 415                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 416                 kfree(mp);
 417                 return -EIO;
 418         }
 419
 420         mp = (struct lpfc_dmabuf *) pmb->context1;
 421
 422         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 423         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 424         kfree(mp);
 425         pmb->context1 = NULL;
 426         lpfc_update_vport_wwn(vport);
 427
 428         /* Update the fc_host data structures with new wwn. */
 429         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 430         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 431         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 432
 433         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 434         /* This should be consolidated into parse_vpd ? - mr */
 435         if (phba->SerialNumber[0] == 0) {
 436                 uint8_t *outptr;
 437
 438                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 439                 for (i = 0; i < 12; i++) {
 440                         status = *outptr++;
 441                         j = ((status & 0xf0) >> 4);
 442                         if (j <= 9)
 443                                 phba->SerialNumber[i] =
 444                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 445                         else
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 448                         i++;
 449                         j = (status & 0xf);
 450                         if (j <= 9)
 451                                 phba->SerialNumber[i] =
 452                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 453                         else
 454                                 phba->SerialNumber[i] =
 455                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 456                 }
 457         }
 458
 459         lpfc_read_config(phba, pmb);
 460         pmb->vport = vport;
 461         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 463                                 "0453 Adapter failed to init, mbxCmd x%x "
 464                                 "READ_CONFIG, mbxStatus x%x\n",
 465                                 mb->mbxCommand, mb->mbxStatus);
 466                 phba->link_state = LPFC_HBA_ERROR;
 467                 mempool_free( pmb, phba->mbox_mem_pool);
 468                 return -EIO;
 469         }
 470
 471         /* Check if the port is disabled */
 472         lpfc_sli_read_link_ste(phba);
 473
 474         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 475         i = (mb->un.varRdConfig.max_xri + 1);
 476         if (phba->cfg_hba_queue_depth > i) {
 477                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 478                                 "3359 HBA queue depth changed from %d to %d\n",
 479                                 phba->cfg_hba_queue_depth, i);
 480                 phba->cfg_hba_queue_depth = i;
 481         }
 482
 483         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 484         i = (mb->un.varRdConfig.max_xri >> 3);
 485         if (phba->pport->cfg_lun_queue_depth > i) {
 486                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 487                                 "3360 LUN queue depth changed from %d to %d\n",
 488                                 phba->pport->cfg_lun_queue_depth, i);
 489                 phba->pport->cfg_lun_queue_depth = i;
 490         }
 491
 492         phba->lmt = mb->un.varRdConfig.lmt;
 493
 494         /* Get the default values for Model Name and Description */
 495         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 496
 497         phba->link_state = LPFC_LINK_DOWN;
 498
 499         /* Only process IOCBs on ELS ring till hba_state is READY */
 500         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 501                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 502         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 503                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 505                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506
 507         /* Post receive buffers for desired rings */
 508         if (phba->sli_rev != 3)
 509                 lpfc_post_rcv_buf(phba);
 510
 511         /*
 512          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 513          */
 514         if (phba->intr_type == MSIX) {
 515                 rc = lpfc_config_msi(phba, pmb);
 516                 if (rc) {
 517                         mempool_free(pmb, phba->mbox_mem_pool);
 518                         return -EIO;
 519                 }
 520                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 521                 if (rc != MBX_SUCCESS) {
 522                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 523                                         "0352 Config MSI mailbox command "
 524                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 525                                         pmb->u.mb.mbxCommand,
 526                                         pmb->u.mb.mbxStatus);
 527                         mempool_free(pmb, phba->mbox_mem_pool);
 528                         return -EIO;
 529                 }
 530         }
 531
 532         spin_lock_irq(&phba->hbalock);
 533         /* Initialize ERATT handling flag */
 534         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 535
 536         /* Enable appropriate host interrupts */
 537         if (lpfc_readl(phba->HCregaddr, &status)) {
 538                 spin_unlock_irq(&phba->hbalock);
 539                 return -EIO;
 540         }
 541         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 542         if (psli->num_rings > 0)
 543                 status |= HC_R0INT_ENA;
 544         if (psli->num_rings > 1)
 545                 status |= HC_R1INT_ENA;
 546         if (psli->num_rings > 2)
 547                 status |= HC_R2INT_ENA;
 548         if (psli->num_rings > 3)
 549                 status |= HC_R3INT_ENA;
 550
 551         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 552             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 553                 status &= ~(HC_R0INT_ENA);
 554
 555         writel(status, phba->HCregaddr);
 556         readl(phba->HCregaddr); /* flush */
 557         spin_unlock_irq(&phba->hbalock);
 558
 559         /* Set up ring-0 (ELS) timer */
 560         timeout = phba->fc_ratov * 2;
 561         mod_timer(&vport->els_tmofunc,
 562                   jiffies + msecs_to_jiffies(1000 * timeout));
 563         /* Set up heart beat (HB) timer */
 564         mod_timer(&phba->hb_tmofunc,
 565                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 566         phba->hb_outstanding = 0;
 567         phba->last_completion_time = jiffies;
 568         /* Set up error attention (ERATT) polling timer */
 569         mod_timer(&phba->eratt_poll,
 570                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 571
 572         if (phba->hba_flag & LINK_DISABLED) {
 573                 lpfc_printf_log(phba,
 574                         KERN_ERR, LOG_INIT,
 575                         "2598 Adapter Link is disabled.\n");
 576                 lpfc_down_link(phba, pmb);
 577                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 578                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 579                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 580                         lpfc_printf_log(phba,
 581                         KERN_ERR, LOG_INIT,
 582                         "2599 Adapter failed to issue DOWN_LINK"
 583                         " mbox command rc 0x%x\n", rc);
 584
 585                         mempool_free(pmb, phba->mbox_mem_pool);
 586                         return -EIO;
 587                 }
 588         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 589                 mempool_free(pmb, phba->mbox_mem_pool);
 590                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 591                 if (rc)
 592                         return rc;
 593         }
 594         /* MBOX buffer will be freed in mbox compl */
 595         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 596         if (!pmb) {
 597                 phba->link_state = LPFC_HBA_ERROR;
 598                 return -ENOMEM;
 599         }
 600
 601         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 602         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 603         pmb->vport = phba->pport;
 604         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 605
 606         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 607                 lpfc_printf_log(phba,
 608                                 KERN_ERR,
 609                                 LOG_INIT,
 610                                 "0456 Adapter failed to issue "
 611                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 612                                 rc);
 613                 mempool_free(pmb, phba->mbox_mem_pool);
 614         }
 615
 616         /* Get Option rom version */
 617         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 618         if (!pmb) {
 619                 phba->link_state = LPFC_HBA_ERROR;
 620                 return -ENOMEM;
 621         }
 622
 623         lpfc_dump_wakeup_param(phba, pmb);
 624         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 625         pmb->vport = phba->pport;
 626         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 627
 628         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 629                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 630                                 "to get Option ROM version status x%x\n", rc);
 631                 mempool_free(pmb, phba->mbox_mem_pool);
 632         }
 633
 634         return 0;
 635 }
 636
 637 /**
 638  * lpfc_hba_init_link - Initialize the FC link
 639  * @phba: pointer to lpfc hba data structure.
 640  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 641  *
 642  * This routine will issue the INIT_LINK mailbox command call.
 643  * It is available to other drivers through the lpfc_hba data
 644  * structure for use as a delayed link up mechanism with the
 645  * module parameter lpfc_suppress_link_up.
 646  *
 647  * Return code
 648  *              0 - success
 649  *              Any other value - error
 650  **/
 651 int
 652 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 653 {
 654         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 655 }
 656
 657 /**
 658  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 659  * @phba: pointer to lpfc hba data structure.
 660  * @fc_topology: desired fc topology.
 661  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 662  *
 663  * This routine will issue the INIT_LINK mailbox command call.
 664  * It is available to other drivers through the lpfc_hba data
 665  * structure for use as a delayed link up mechanism with the
 666  * module parameter lpfc_suppress_link_up.
 667  *
 668  * Return code
 669  *              0 - success
 670  *              Any other value - error
 671  **/
 672 int
 673 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 674                                uint32_t flag)
 675 {
 676         struct lpfc_vport *vport = phba->pport;
 677         LPFC_MBOXQ_t *pmb;
 678         MAILBOX_t *mb;
 679         int rc;
 680
 681         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 682         if (!pmb) {
 683                 phba->link_state = LPFC_HBA_ERROR;
 684                 return -ENOMEM;
 685         }
 686         mb = &pmb->u.mb;
 687         pmb->vport = vport;
 688
 689         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 690             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 691              !(phba->lmt & LMT_1Gb)) ||
 692             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 693              !(phba->lmt & LMT_2Gb)) ||
 694             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 695              !(phba->lmt & LMT_4Gb)) ||
 696             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 697              !(phba->lmt & LMT_8Gb)) ||
 698             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 699              !(phba->lmt & LMT_10Gb)) ||
 700             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 701              !(phba->lmt & LMT_16Gb))) {
 702                 /* Reset link speed to auto */
 703                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 704                         "1302 Invalid speed for this board:%d "
 705                         "Reset link speed to auto.\n",
 706                         phba->cfg_link_speed);
 707                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 708         }
 709         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 710         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 711         if (phba->sli_rev < LPFC_SLI_REV4)
 712                 lpfc_set_loopback_flag(phba);
 713         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 714         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 715                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 716                         "0498 Adapter failed to init, mbxCmd x%x "
 717                         "INIT_LINK, mbxStatus x%x\n",
 718                         mb->mbxCommand, mb->mbxStatus);
 719                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 720                         /* Clear all interrupt enable conditions */
 721                         writel(0, phba->HCregaddr);
 722                         readl(phba->HCregaddr); /* flush */
 723                         /* Clear all pending interrupts */
 724                         writel(0xffffffff, phba->HAregaddr);
 725                         readl(phba->HAregaddr); /* flush */
 726                 }
 727                 phba->link_state = LPFC_HBA_ERROR;
 728                 if (rc != MBX_BUSY || flag == MBX_POLL)
 729                         mempool_free(pmb, phba->mbox_mem_pool);
 730                 return -EIO;
 731         }
 732         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 733         if (flag == MBX_POLL)
 734                 mempool_free(pmb, phba->mbox_mem_pool);
 735
 736         return 0;
 737 }
 738
 739 /**
 740  * lpfc_hba_down_link - this routine downs the FC link
 741  * @phba: pointer to lpfc hba data structure.
 742  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 743  *
 744  * This routine will issue the DOWN_LINK mailbox command call.
 745  * It is available to other drivers through the lpfc_hba data
 746  * structure for use to stop the link.
 747  *
 748  * Return code
 749  *              0 - success
 750  *              Any other value - error
 751  **/
 752 int
 753 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 754 {
 755         LPFC_MBOXQ_t *pmb;
 756         int rc;
 757
 758         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 759         if (!pmb) {
 760                 phba->link_state = LPFC_HBA_ERROR;
 761                 return -ENOMEM;
 762         }
 763
 764         lpfc_printf_log(phba,
 765                 KERN_ERR, LOG_INIT,
 766                 "0491 Adapter Link is disabled.\n");
 767         lpfc_down_link(phba, pmb);
 768         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 769         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 770         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 771                 lpfc_printf_log(phba,
 772                 KERN_ERR, LOG_INIT,
 773                 "2522 Adapter failed to issue DOWN_LINK"
 774                 " mbox command rc 0x%x\n", rc);
 775
 776                 mempool_free(pmb, phba->mbox_mem_pool);
 777                 return -EIO;
 778         }
 779         if (flag == MBX_POLL)
 780                 mempool_free(pmb, phba->mbox_mem_pool);
 781
 782         return 0;
 783 }
 784
 785 /**
 786  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 787  * @phba: pointer to lpfc HBA data structure.
 788  *
 789  * This routine will do LPFC uninitialization before the HBA is reset when
 790  * bringing down the SLI Layer.
 791  *
 792  * Return codes
 793  *   0 - success.
 794  *   Any other value - error.
 795  **/
 796 int
 797 lpfc_hba_down_prep(struct lpfc_hba *phba)
 798 {
 799         struct lpfc_vport **vports;
 800         int i;
 801
 802         if (phba->sli_rev <= LPFC_SLI_REV3) {
 803                 /* Disable interrupts */
 804                 writel(0, phba->HCregaddr);
 805                 readl(phba->HCregaddr); /* flush */
 806         }
 807
 808         if (phba->pport->load_flag & FC_UNLOADING)
 809                 lpfc_cleanup_discovery_resources(phba->pport);
 810         else {
 811                 vports = lpfc_create_vport_work_array(phba);
 812                 if (vports != NULL)
 813                         for (i = 0; i <= phba->max_vports &&
 814                                 vports[i] != NULL; i++)
 815                                 lpfc_cleanup_discovery_resources(vports[i]);
 816                 lpfc_destroy_vport_work_array(phba, vports);
 817         }
 818         return 0;
 819 }
 820
 821 /**
 822  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 823  * @phba: pointer to lpfc HBA data structure.
 824  *
 825  * This routine will do uninitialization after the HBA is reset when bring
 826  * down the SLI Layer.
 827  *
 828  * Return codes
 829  *   0 - success.
 830  *   Any other value - error.
 831  **/
 832 static int
 833 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 834 {
 835         struct lpfc_sli *psli = &phba->sli;
 836         struct lpfc_sli_ring *pring;
 837         struct lpfc_dmabuf *mp, *next_mp;
 838         LIST_HEAD(completions);
 839         int i;
 840
 841         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 842                 lpfc_sli_hbqbuf_free_all(phba);
 843         else {
 844                 /* Cleanup preposted buffers on the ELS ring */
 845                 pring = &psli->ring[LPFC_ELS_RING];
 846                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 847                         list_del(&mp->list);
 848                         pring->postbufq_cnt--;
 849                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 850                         kfree(mp);
 851                 }
 852         }
 853
 854         spin_lock_irq(&phba->hbalock);
 855         for (i = 0; i < psli->num_rings; i++) {
 856                 pring = &psli->ring[i];
 857
 858                 /* At this point in time the HBA is either reset or DOA. Either
 859                  * way, nothing should be on txcmplq as it will NEVER complete.
 860                  */
 861                 list_splice_init(&pring->txcmplq, &completions);
 862                 spin_unlock_irq(&phba->hbalock);
 863
 864                 /* Cancel all the IOCBs from the completions list */
 865                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 866                                       IOERR_SLI_ABORTED);
 867
 868                 lpfc_sli_abort_iocb_ring(phba, pring);
 869                 spin_lock_irq(&phba->hbalock);
 870         }
 871         spin_unlock_irq(&phba->hbalock);
 872
 873         return 0;
 874 }
 875
 876 /**
 877  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 878  * @phba: pointer to lpfc HBA data structure.
 879  *
 880  * This routine will do uninitialization after the HBA is reset when bring
 881  * down the SLI Layer.
 882  *
 883  * Return codes
 884  *   0 - success.
 885  *   Any other value - error.
 886  **/
 887 static int
 888 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 889 {
 890         struct lpfc_scsi_buf *psb, *psb_next;
 891         LIST_HEAD(aborts);
 892         int ret;
 893         unsigned long iflag = 0;
 894         struct lpfc_sglq *sglq_entry = NULL;
 895
 896         ret = lpfc_hba_down_post_s3(phba);
 897         if (ret)
 898                 return ret;
 899         /* At this point in time the HBA is either reset or DOA. Either
 900          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 901          * on the lpfc_sgl_list so that it can either be freed if the
 902          * driver is unloading or reposted if the driver is restarting
 903          * the port.
 904          */
 905         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 906                                         /* scsl_buf_list */
 907         /* abts_sgl_list_lock required because worker thread uses this
 908          * list.
 909          */
 910         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 911         list_for_each_entry(sglq_entry,
 912                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 913                 sglq_entry->state = SGL_FREED;
 914
 915         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 916                         &phba->sli4_hba.lpfc_sgl_list);
 917         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 918         /* abts_scsi_buf_list_lock required because worker thread uses this
 919          * list.
 920          */
 921         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 922         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 923                         &aborts);
 924         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 925         spin_unlock_irq(&phba->hbalock);
 926
 927         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 928                 psb->pCmd = NULL;
 929                 psb->status = IOSTAT_SUCCESS;
 930         }
 931         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
 932         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
 933         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
 934         return 0;
 935 }
 936
 937 /**
 938  * lpfc_hba_down_post - Wrapper func for hba down post routine
 939  * @phba: pointer to lpfc HBA data structure.
 940  *
 941  * This routine wraps the actual SLI3 or SLI4 routine for performing
 942  * uninitialization after the HBA is reset when bring down the SLI Layer.
 943  *
 944  * Return codes
 945  *   0 - success.
 946  *   Any other value - error.
 947  **/
 948 int
 949 lpfc_hba_down_post(struct lpfc_hba *phba)
 950 {
 951         return (*phba->lpfc_hba_down_post)(phba);
 952 }
 953
 954 /**
 955  * lpfc_hb_timeout - The HBA-timer timeout handler
 956  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 957  *
 958  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 959  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 960  * work-port-events bitmap and the worker thread is notified. This timeout
 961  * event will be used by the worker thread to invoke the actual timeout
 962  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 963  * be performed in the timeout handler and the HBA timeout event bit shall
 964  * be cleared by the worker thread after it has taken the event bitmap out.
 965  **/
 966 static void
 967 lpfc_hb_timeout(unsigned long ptr)
 968 {
 969         struct lpfc_hba *phba;
 970         uint32_t tmo_posted;
 971         unsigned long iflag;
 972
 973         phba = (struct lpfc_hba *)ptr;
 974
 975         /* Check for heart beat timeout conditions */
 976         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 977         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 978         if (!tmo_posted)
 979                 phba->pport->work_port_events |= WORKER_HB_TMO;
 980         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 981
 982         /* Tell the worker thread there is work to do */
 983         if (!tmo_posted)
 984                 lpfc_worker_wake_up(phba);
 985         return;
 986 }
 987
 988 /**
 989  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 990  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 991  *
 992  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 993  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 994  * work-port-events bitmap and the worker thread is notified. This timeout
 995  * event will be used by the worker thread to invoke the actual timeout
 996  * handler routine, lpfc_rrq_handler. Any periodical operations will
 997  * be performed in the timeout handler and the RRQ timeout event bit shall
 998  * be cleared by the worker thread after it has taken the event bitmap out.
 999  **/
1000 static void
1001 lpfc_rrq_timeout(unsigned long ptr)
1002 {
1003         struct lpfc_hba *phba;
1004         unsigned long iflag;
1005
1006         phba = (struct lpfc_hba *)ptr;
1007         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1008         phba->hba_flag |= HBA_RRQ_ACTIVE;
1009         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1010         lpfc_worker_wake_up(phba);
1011 }
1012
1013 /**
1014  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1015  * @phba: pointer to lpfc hba data structure.
1016  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1017  *
1018  * This is the callback function to the lpfc heart-beat mailbox command.
1019  * If configured, the lpfc driver issues the heart-beat mailbox command to
1020  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1021  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1022  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1023  * heart-beat outstanding state. Once the mailbox command comes back and
1024  * no error conditions detected, the heart-beat mailbox command timer is
1025  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1026  * state is cleared for the next heart-beat. If the timer expired with the
1027  * heart-beat outstanding state set, the driver will put the HBA offline.
1028  **/
1029 static void
1030 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1031 {
1032         unsigned long drvr_flag;
1033
1034         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1035         phba->hb_outstanding = 0;
1036         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1037
1038         /* Check and reset heart-beat timer is necessary */
1039         mempool_free(pmboxq, phba->mbox_mem_pool);
1040         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1041                 !(phba->link_state == LPFC_HBA_ERROR) &&
1042                 !(phba->pport->load_flag & FC_UNLOADING))
1043                 mod_timer(&phba->hb_tmofunc,
1044                           jiffies +
1045                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1046         return;
1047 }
1048
1049 /**
1050  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1051  * @phba: pointer to lpfc hba data structure.
1052  *
1053  * This is the actual HBA-timer timeout handler to be invoked by the worker
1054  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1055  * handler performs any periodic operations needed for the device. If such
1056  * periodic event has already been attended to either in the interrupt handler
1057  * or by processing slow-ring or fast-ring events within the HBA-timer
1058  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1059  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1060  * is configured and there is no heart-beat mailbox command outstanding, a
1061  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1062  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1063  * to offline.
1064  **/
1065 void
1066 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1067 {
1068         struct lpfc_vport **vports;
1069         LPFC_MBOXQ_t *pmboxq;
1070         struct lpfc_dmabuf *buf_ptr;
1071         int retval, i;
1072         struct lpfc_sli *psli = &phba->sli;
1073         LIST_HEAD(completions);
1074
1075         vports = lpfc_create_vport_work_array(phba);
1076         if (vports != NULL)
1077                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1078                         lpfc_rcv_seq_check_edtov(vports[i]);
1079         lpfc_destroy_vport_work_array(phba, vports);
1080
1081         if ((phba->link_state == LPFC_HBA_ERROR) ||
1082                 (phba->pport->load_flag & FC_UNLOADING) ||
1083                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1084                 return;
1085
1086         spin_lock_irq(&phba->pport->work_port_lock);
1087
1088         if (time_after(phba->last_completion_time +
1089                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1090                         jiffies)) {
1091                 spin_unlock_irq(&phba->pport->work_port_lock);
1092                 if (!phba->hb_outstanding)
1093                         mod_timer(&phba->hb_tmofunc,
1094                                 jiffies +
1095                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1096                 else
1097                         mod_timer(&phba->hb_tmofunc,
1098                                 jiffies +
1099                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1100                 return;
1101         }
1102         spin_unlock_irq(&phba->pport->work_port_lock);
1103
1104         if (phba->elsbuf_cnt &&
1105                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1106                 spin_lock_irq(&phba->hbalock);
1107                 list_splice_init(&phba->elsbuf, &completions);
1108                 phba->elsbuf_cnt = 0;
1109                 phba->elsbuf_prev_cnt = 0;
1110                 spin_unlock_irq(&phba->hbalock);
1111
1112                 while (!list_empty(&completions)) {
1113                         list_remove_head(&completions, buf_ptr,
1114                                 struct lpfc_dmabuf, list);
1115                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1116                         kfree(buf_ptr);
1117                 }
1118         }
1119         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1120
1121         /* If there is no heart beat outstanding, issue a heartbeat command */
1122         if (phba->cfg_enable_hba_heartbeat) {
1123                 if (!phba->hb_outstanding) {
1124                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1125                                 (list_empty(&psli->mboxq))) {
1126                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1127                                                         GFP_KERNEL);
1128                                 if (!pmboxq) {
1129                                         mod_timer(&phba->hb_tmofunc,
1130                                                  jiffies +
1131                                                  msecs_to_jiffies(1000 *
1132                                                  LPFC_HB_MBOX_INTERVAL));
1133                                         return;
1134                                 }
1135
1136                                 lpfc_heart_beat(phba, pmboxq);
1137                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1138                                 pmboxq->vport = phba->pport;
1139                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1140                                                 MBX_NOWAIT);
1141
1142                                 if (retval != MBX_BUSY &&
1143                                         retval != MBX_SUCCESS) {
1144                                         mempool_free(pmboxq,
1145                                                         phba->mbox_mem_pool);
1146                                         mod_timer(&phba->hb_tmofunc,
1147                                                 jiffies +
1148                                                 msecs_to_jiffies(1000 *
1149                                                 LPFC_HB_MBOX_INTERVAL));
1150                                         return;
1151                                 }
1152                                 phba->skipped_hb = 0;
1153                                 phba->hb_outstanding = 1;
1154                         } else if (time_before_eq(phba->last_completion_time,
1155                                         phba->skipped_hb)) {
1156                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1157                                         "2857 Last completion time not "
1158                                         " updated in %d ms\n",
1159                                         jiffies_to_msecs(jiffies
1160                                                  - phba->last_completion_time));
1161                         } else
1162                                 phba->skipped_hb = jiffies;
1163
1164                         mod_timer(&phba->hb_tmofunc,
1165                                  jiffies +
1166                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1167                         return;
1168                 } else {
1169                         /*
1170                         * If heart beat timeout called with hb_outstanding set
1171                         * we need to give the hb mailbox cmd a chance to
1172                         * complete or TMO.
1173                         */
1174                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1175                                         "0459 Adapter heartbeat still out"
1176                                         "standing:last compl time was %d ms.\n",
1177                                         jiffies_to_msecs(jiffies
1178                                                  - phba->last_completion_time));
1179                         mod_timer(&phba->hb_tmofunc,
1180                                 jiffies +
1181                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1182                 }
1183         }
1184 }
1185
1186 /**
1187  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1188  * @phba: pointer to lpfc hba data structure.
1189  *
1190  * This routine is called to bring the HBA offline when HBA hardware error
1191  * other than Port Error 6 has been detected.
1192  **/
1193 static void
1194 lpfc_offline_eratt(struct lpfc_hba *phba)
1195 {
1196         struct lpfc_sli   *psli = &phba->sli;
1197
1198         spin_lock_irq(&phba->hbalock);
1199         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1200         spin_unlock_irq(&phba->hbalock);
1201         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1202
1203         lpfc_offline(phba);
1204         lpfc_reset_barrier(phba);
1205         spin_lock_irq(&phba->hbalock);
1206         lpfc_sli_brdreset(phba);
1207         spin_unlock_irq(&phba->hbalock);
1208         lpfc_hba_down_post(phba);
1209         lpfc_sli_brdready(phba, HS_MBRDY);
1210         lpfc_unblock_mgmt_io(phba);
1211         phba->link_state = LPFC_HBA_ERROR;
1212         return;
1213 }
1214
1215 /**
1216  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1217  * @phba: pointer to lpfc hba data structure.
1218  *
1219  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1220  * other than Port Error 6 has been detected.
1221  **/
1222 void
1223 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1224 {
1225         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1226         lpfc_offline(phba);
1227         lpfc_sli4_brdreset(phba);
1228         lpfc_hba_down_post(phba);
1229         lpfc_sli4_post_status_check(phba);
1230         lpfc_unblock_mgmt_io(phba);
1231         phba->link_state = LPFC_HBA_ERROR;
1232 }
1233
1234 /**
1235  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1236  * @phba: pointer to lpfc hba data structure.
1237  *
1238  * This routine is invoked to handle the deferred HBA hardware error
1239  * conditions. This type of error is indicated by HBA by setting ER1
1240  * and another ER bit in the host status register. The driver will
1241  * wait until the ER1 bit clears before handling the error condition.
1242  **/
1243 static void
1244 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1245 {
1246         uint32_t old_host_status = phba->work_hs;
1247         struct lpfc_sli_ring  *pring;
1248         struct lpfc_sli *psli = &phba->sli;
1249
1250         /* If the pci channel is offline, ignore possible errors,
1251          * since we cannot communicate with the pci card anyway.
1252          */
1253         if (pci_channel_offline(phba->pcidev)) {
1254                 spin_lock_irq(&phba->hbalock);
1255                 phba->hba_flag &= ~DEFER_ERATT;
1256                 spin_unlock_irq(&phba->hbalock);
1257                 return;
1258         }
1259
1260         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1261                 "0479 Deferred Adapter Hardware Error "
1262                 "Data: x%x x%x x%x\n",
1263                 phba->work_hs,
1264                 phba->work_status[0], phba->work_status[1]);
1265
1266         spin_lock_irq(&phba->hbalock);
1267         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1268         spin_unlock_irq(&phba->hbalock);
1269
1270
1271         /*
1272          * Firmware stops when it triggred erratt. That could cause the I/Os
1273          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1274          * SCSI layer retry it after re-establishing link.
1275          */
1276         pring = &psli->ring[psli->fcp_ring];
1277         lpfc_sli_abort_iocb_ring(phba, pring);
1278
1279         /*
1280          * There was a firmware error. Take the hba offline and then
1281          * attempt to restart it.
1282          */
1283         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1284         lpfc_offline(phba);
1285
1286         /* Wait for the ER1 bit to clear.*/
1287         while (phba->work_hs & HS_FFER1) {
1288                 msleep(100);
1289                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1290                         phba->work_hs = UNPLUG_ERR ;
1291                         break;
1292                 }
1293                 /* If driver is unloading let the worker thread continue */
1294                 if (phba->pport->load_flag & FC_UNLOADING) {
1295                         phba->work_hs = 0;
1296                         break;
1297                 }
1298         }
1299
1300         /*
1301          * This is to ptrotect against a race condition in which
1302          * first write to the host attention register clear the
1303          * host status register.
1304          */
1305         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1306                 phba->work_hs = old_host_status & ~HS_FFER1;
1307
1308         spin_lock_irq(&phba->hbalock);
1309         phba->hba_flag &= ~DEFER_ERATT;
1310         spin_unlock_irq(&phba->hbalock);
1311         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1312         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1313 }
1314
1315 static void
1316 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1317 {
1318         struct lpfc_board_event_header board_event;
1319         struct Scsi_Host *shost;
1320
1321         board_event.event_type = FC_REG_BOARD_EVENT;
1322         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1323         shost = lpfc_shost_from_vport(phba->pport);
1324         fc_host_post_vendor_event(shost, fc_get_event_number(),
1325                                   sizeof(board_event),
1326                                   (char *) &board_event,
1327                                   LPFC_NL_VENDOR_ID);
1328 }
1329
1330 /**
1331  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1332  * @phba: pointer to lpfc hba data structure.
1333  *
1334  * This routine is invoked to handle the following HBA hardware error
1335  * conditions:
1336  * 1 - HBA error attention interrupt
1337  * 2 - DMA ring index out of range
1338  * 3 - Mailbox command came back as unknown
1339  **/
1340 static void
1341 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1342 {
1343         struct lpfc_vport *vport = phba->pport;
1344         struct lpfc_sli   *psli = &phba->sli;
1345         struct lpfc_sli_ring  *pring;
1346         uint32_t event_data;
1347         unsigned long temperature;
1348         struct temp_event temp_event_data;
1349         struct Scsi_Host  *shost;
1350
1351         /* If the pci channel is offline, ignore possible errors,
1352          * since we cannot communicate with the pci card anyway.
1353          */
1354         if (pci_channel_offline(phba->pcidev)) {
1355                 spin_lock_irq(&phba->hbalock);
1356                 phba->hba_flag &= ~DEFER_ERATT;
1357                 spin_unlock_irq(&phba->hbalock);
1358                 return;
1359         }
1360
1361         /* If resets are disabled then leave the HBA alone and return */
1362         if (!phba->cfg_enable_hba_reset)
1363                 return;
1364
1365         /* Send an internal error event to mgmt application */
1366         lpfc_board_errevt_to_mgmt(phba);
1367
1368         if (phba->hba_flag & DEFER_ERATT)
1369                 lpfc_handle_deferred_eratt(phba);
1370
1371         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1372                 if (phba->work_hs & HS_FFER6)
1373                         /* Re-establishing Link */
1374                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1375                                         "1301 Re-establishing Link "
1376                                         "Data: x%x x%x x%x\n",
1377                                         phba->work_hs, phba->work_status[0],
1378                                         phba->work_status[1]);
1379                 if (phba->work_hs & HS_FFER8)
1380                         /* Device Zeroization */
1381                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1382                                         "2861 Host Authentication device "
1383                                         "zeroization Data:x%x x%x x%x\n",
1384                                         phba->work_hs, phba->work_status[0],
1385                                         phba->work_status[1]);
1386
1387                 spin_lock_irq(&phba->hbalock);
1388                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1389                 spin_unlock_irq(&phba->hbalock);
1390
1391                 /*
1392                 * Firmware stops when it triggled erratt with HS_FFER6.
1393                 * That could cause the I/Os dropped by the firmware.
1394                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1395                 * retry it after re-establishing link.
1396                 */
1397                 pring = &psli->ring[psli->fcp_ring];
1398                 lpfc_sli_abort_iocb_ring(phba, pring);
1399
1400                 /*
1401                  * There was a firmware error.  Take the hba offline and then
1402                  * attempt to restart it.
1403                  */
1404                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1405                 lpfc_offline(phba);
1406                 lpfc_sli_brdrestart(phba);
1407                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1408                         lpfc_unblock_mgmt_io(phba);
1409                         return;
1410                 }
1411                 lpfc_unblock_mgmt_io(phba);
1412         } else if (phba->work_hs & HS_CRIT_TEMP) {
1413                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1414                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1415                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1416                 temp_event_data.data = (uint32_t)temperature;
1417
1418                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1419                                 "0406 Adapter maximum temperature exceeded "
1420                                 "(%ld), taking this port offline "
1421                                 "Data: x%x x%x x%x\n",
1422                                 temperature, phba->work_hs,
1423                                 phba->work_status[0], phba->work_status[1]);
1424
1425                 shost = lpfc_shost_from_vport(phba->pport);
1426                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1427                                           sizeof(temp_event_data),
1428                                           (char *) &temp_event_data,
1429                                           SCSI_NL_VID_TYPE_PCI
1430                                           | PCI_VENDOR_ID_EMULEX);
1431
1432                 spin_lock_irq(&phba->hbalock);
1433                 phba->over_temp_state = HBA_OVER_TEMP;
1434                 spin_unlock_irq(&phba->hbalock);
1435                 lpfc_offline_eratt(phba);
1436
1437         } else {
1438                 /* The if clause above forces this code path when the status
1439                  * failure is a value other than FFER6. Do not call the offline
1440                  * twice. This is the adapter hardware error path.
1441                  */
1442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1443                                 "0457 Adapter Hardware Error "
1444                                 "Data: x%x x%x x%x\n",
1445                                 phba->work_hs,
1446                                 phba->work_status[0], phba->work_status[1]);
1447
1448                 event_data = FC_REG_DUMP_EVENT;
1449                 shost = lpfc_shost_from_vport(vport);
1450                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1451                                 sizeof(event_data), (char *) &event_data,
1452                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1453
1454                 lpfc_offline_eratt(phba);
1455         }
1456         return;
1457 }
1458
1459 /**
1460  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1461  * @phba: pointer to lpfc hba data structure.
1462  * @mbx_action: flag for mailbox shutdown action.
1463  *
1464  * This routine is invoked to perform an SLI4 port PCI function reset in
1465  * response to port status register polling attention. It waits for port
1466  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1467  * During this process, interrupt vectors are freed and later requested
1468  * for handling possible port resource change.
1469  **/
1470 static int
1471 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1472 {
1473         int rc;
1474         uint32_t intr_mode;
1475
1476         /*
1477          * On error status condition, driver need to wait for port
1478          * ready before performing reset.
1479          */
1480         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1481         if (!rc) {
1482                 /* need reset: attempt for port recovery */
1483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1484                                 "2887 Reset Needed: Attempting Port "
1485                                 "Recovery...\n");
1486                 lpfc_offline_prep(phba, mbx_action);
1487                 lpfc_offline(phba);
1488                 /* release interrupt for possible resource change */
1489                 lpfc_sli4_disable_intr(phba);
1490                 lpfc_sli_brdrestart(phba);
1491                 /* request and enable interrupt */
1492                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1493                 if (intr_mode == LPFC_INTR_ERROR) {
1494                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1495                                         "3175 Failed to enable interrupt\n");
1496                         return -EIO;
1497                 } else {
1498                         phba->intr_mode = intr_mode;
1499                 }
1500                 rc = lpfc_online(phba);
1501                 if (rc == 0)
1502                         lpfc_unblock_mgmt_io(phba);
1503         }
1504         return rc;
1505 }
1506
1507 /**
1508  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1509  * @phba: pointer to lpfc hba data structure.
1510  *
1511  * This routine is invoked to handle the SLI4 HBA hardware error attention
1512  * conditions.
1513  **/
1514 static void
1515 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1516 {
1517         struct lpfc_vport *vport = phba->pport;
1518         uint32_t event_data;
1519         struct Scsi_Host *shost;
1520         uint32_t if_type;
1521         struct lpfc_register portstat_reg = {0};
1522         uint32_t reg_err1, reg_err2;
1523         uint32_t uerrlo_reg, uemasklo_reg;
1524         uint32_t pci_rd_rc1, pci_rd_rc2;
1525         int rc;
1526
1527         /* If the pci channel is offline, ignore possible errors, since
1528          * we cannot communicate with the pci card anyway.
1529          */
1530         if (pci_channel_offline(phba->pcidev))
1531                 return;
1532         /* If resets are disabled then leave the HBA alone and return */
1533         if (!phba->cfg_enable_hba_reset)
1534                 return;
1535
1536         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1537         switch (if_type) {
1538         case LPFC_SLI_INTF_IF_TYPE_0:
1539                 pci_rd_rc1 = lpfc_readl(
1540                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1541                                 &uerrlo_reg);
1542                 pci_rd_rc2 = lpfc_readl(
1543                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1544                                 &uemasklo_reg);
1545                 /* consider PCI bus read error as pci_channel_offline */
1546                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1547                         return;
1548                 lpfc_sli4_offline_eratt(phba);
1549                 break;
1550         case LPFC_SLI_INTF_IF_TYPE_2:
1551                 pci_rd_rc1 = lpfc_readl(
1552                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1553                                 &portstat_reg.word0);
1554                 /* consider PCI bus read error as pci_channel_offline */
1555                 if (pci_rd_rc1 == -EIO) {
1556                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557                                 "3151 PCI bus read access failure: x%x\n",
1558                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1559                         return;
1560                 }
1561                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1562                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1563                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1564                         /* TODO: Register for Overtemp async events. */
1565                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1566                                 "2889 Port Overtemperature event, "
1567                                 "taking port offline\n");
1568                         spin_lock_irq(&phba->hbalock);
1569                         phba->over_temp_state = HBA_OVER_TEMP;
1570                         spin_unlock_irq(&phba->hbalock);
1571                         lpfc_sli4_offline_eratt(phba);
1572                         break;
1573                 }
1574                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1575                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1577                                         "3143 Port Down: Firmware Restarted\n");
1578                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1579                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1580                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1581                                         "3144 Port Down: Debug Dump\n");
1582                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1583                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1584                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1585                                         "3145 Port Down: Provisioning\n");
1586
1587                 /* Check port status register for function reset */
1588                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1589                 if (rc == 0) {
1590                         /* don't report event on forced debug dump */
1591                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1592                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1593                                 return;
1594                         else
1595                                 break;
1596                 }
1597                 /* fall through for not able to recover */
1598                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1599                                 "3152 Unrecoverable error, bring the port "
1600                                 "offline\n");
1601                 lpfc_sli4_offline_eratt(phba);
1602                 break;
1603         case LPFC_SLI_INTF_IF_TYPE_1:
1604         default:
1605                 break;
1606         }
1607         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1608                         "3123 Report dump event to upper layer\n");
1609         /* Send an internal error event to mgmt application */
1610         lpfc_board_errevt_to_mgmt(phba);
1611
1612         event_data = FC_REG_DUMP_EVENT;
1613         shost = lpfc_shost_from_vport(vport);
1614         fc_host_post_vendor_event(shost, fc_get_event_number(),
1615                                   sizeof(event_data), (char *) &event_data,
1616                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1617 }
1618
1619 /**
1620  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1621  * @phba: pointer to lpfc HBA data structure.
1622  *
1623  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1624  * routine from the API jump table function pointer from the lpfc_hba struct.
1625  *
1626  * Return codes
1627  *   0 - success.
1628  *   Any other value - error.
1629  **/
1630 void
1631 lpfc_handle_eratt(struct lpfc_hba *phba)
1632 {
1633         (*phba->lpfc_handle_eratt)(phba);
1634 }
1635
1636 /**
1637  * lpfc_handle_latt - The HBA link event handler
1638  * @phba: pointer to lpfc hba data structure.
1639  *
1640  * This routine is invoked from the worker thread to handle a HBA host
1641  * attention link event.
1642  **/
1643 void
1644 lpfc_handle_latt(struct lpfc_hba *phba)
1645 {
1646         struct lpfc_vport *vport = phba->pport;
1647         struct lpfc_sli   *psli = &phba->sli;
1648         LPFC_MBOXQ_t *pmb;
1649         volatile uint32_t control;
1650         struct lpfc_dmabuf *mp;
1651         int rc = 0;
1652
1653         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1654         if (!pmb) {
1655                 rc = 1;
1656                 goto lpfc_handle_latt_err_exit;
1657         }
1658
1659         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1660         if (!mp) {
1661                 rc = 2;
1662                 goto lpfc_handle_latt_free_pmb;
1663         }
1664
1665         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1666         if (!mp->virt) {
1667                 rc = 3;
1668                 goto lpfc_handle_latt_free_mp;
1669         }
1670
1671         /* Cleanup any outstanding ELS commands */
1672         lpfc_els_flush_all_cmd(phba);
1673
1674         psli->slistat.link_event++;
1675         lpfc_read_topology(phba, pmb, mp);
1676         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1677         pmb->vport = vport;
1678         /* Block ELS IOCBs until we have processed this mbox command */
1679         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1680         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1681         if (rc == MBX_NOT_FINISHED) {
1682                 rc = 4;
1683                 goto lpfc_handle_latt_free_mbuf;
1684         }
1685
1686         /* Clear Link Attention in HA REG */
1687         spin_lock_irq(&phba->hbalock);
1688         writel(HA_LATT, phba->HAregaddr);
1689         readl(phba->HAregaddr); /* flush */
1690         spin_unlock_irq(&phba->hbalock);
1691
1692         return;
1693
1694 lpfc_handle_latt_free_mbuf:
1695         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1696         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1697 lpfc_handle_latt_free_mp:
1698         kfree(mp);
1699 lpfc_handle_latt_free_pmb:
1700         mempool_free(pmb, phba->mbox_mem_pool);
1701 lpfc_handle_latt_err_exit:
1702         /* Enable Link attention interrupts */
1703         spin_lock_irq(&phba->hbalock);
1704         psli->sli_flag |= LPFC_PROCESS_LA;
1705         control = readl(phba->HCregaddr);
1706         control |= HC_LAINT_ENA;
1707         writel(control, phba->HCregaddr);
1708         readl(phba->HCregaddr); /* flush */
1709
1710         /* Clear Link Attention in HA REG */
1711         writel(HA_LATT, phba->HAregaddr);
1712         readl(phba->HAregaddr); /* flush */
1713         spin_unlock_irq(&phba->hbalock);
1714         lpfc_linkdown(phba);
1715         phba->link_state = LPFC_HBA_ERROR;
1716
1717         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1718                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1719
1720         return;
1721 }
1722
1723 /**
1724  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1725  * @phba: pointer to lpfc hba data structure.
1726  * @vpd: pointer to the vital product data.
1727  * @len: length of the vital product data in bytes.
1728  *
1729  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1730  * an array of characters. In this routine, the ModelName, ProgramType, and
1731  * ModelDesc, etc. fields of the phba data structure will be populated.
1732  *
1733  * Return codes
1734  *   0 - pointer to the VPD passed in is NULL
1735  *   1 - success
1736  **/
1737 int
1738 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1739 {
1740         uint8_t lenlo, lenhi;
1741         int Length;
1742         int i, j;
1743         int finished = 0;
1744         int index = 0;
1745
1746         if (!vpd)
1747                 return 0;
1748
1749         /* Vital Product */
1750         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1751                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1752                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1753                         (uint32_t) vpd[3]);
1754         while (!finished && (index < (len - 4))) {
1755                 switch (vpd[index]) {
1756                 case 0x82:
1757                 case 0x91:
1758                         index += 1;
1759                         lenlo = vpd[index];
1760                         index += 1;
1761                         lenhi = vpd[index];
1762                         index += 1;
1763                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1764                         index += i;
1765                         break;
1766                 case 0x90:
1767                         index += 1;
1768                         lenlo = vpd[index];
1769                         index += 1;
1770                         lenhi = vpd[index];
1771                         index += 1;
1772                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1773                         if (Length > len - index)
1774                                 Length = len - index;
1775                         while (Length > 0) {
1776                         /* Look for Serial Number */
1777                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1778                                 index += 2;
1779                                 i = vpd[index];
1780                                 index += 1;
1781                                 j = 0;
1782                                 Length -= (3+i);
1783                                 while(i--) {
1784                                         phba->SerialNumber[j++] = vpd[index++];
1785                                         if (j == 31)
1786                                                 break;
1787                                 }
1788                                 phba->SerialNumber[j] = 0;
1789                                 continue;
1790                         }
1791                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1792                                 phba->vpd_flag |= VPD_MODEL_DESC;
1793                                 index += 2;
1794                                 i = vpd[index];
1795                                 index += 1;
1796                                 j = 0;
1797                                 Length -= (3+i);
1798                                 while(i--) {
1799                                         phba->ModelDesc[j++] = vpd[index++];
1800                                         if (j == 255)
1801                                                 break;
1802                                 }
1803                                 phba->ModelDesc[j] = 0;
1804                                 continue;
1805                         }
1806                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1807                                 phba->vpd_flag |= VPD_MODEL_NAME;
1808                                 index += 2;
1809                                 i = vpd[index];
1810                                 index += 1;
1811                                 j = 0;
1812                                 Length -= (3+i);
1813                                 while(i--) {
1814                                         phba->ModelName[j++] = vpd[index++];
1815                                         if (j == 79)
1816                                                 break;
1817                                 }
1818                                 phba->ModelName[j] = 0;
1819                                 continue;
1820                         }
1821                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1822                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1823                                 index += 2;
1824                                 i = vpd[index];
1825                                 index += 1;
1826                                 j = 0;
1827                                 Length -= (3+i);
1828                                 while(i--) {
1829                                         phba->ProgramType[j++] = vpd[index++];
1830                                         if (j == 255)
1831                                                 break;
1832                                 }
1833                                 phba->ProgramType[j] = 0;
1834                                 continue;
1835                         }
1836                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1837                                 phba->vpd_flag |= VPD_PORT;
1838                                 index += 2;
1839                                 i = vpd[index];
1840                                 index += 1;
1841                                 j = 0;
1842                                 Length -= (3+i);
1843                                 while(i--) {
1844                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1845                                             (phba->sli4_hba.pport_name_sta ==
1846                                              LPFC_SLI4_PPNAME_GET)) {
1847                                                 j++;
1848                                                 index++;
1849                                         } else
1850                                                 phba->Port[j++] = vpd[index++];
1851                                         if (j == 19)
1852                                                 break;
1853                                 }
1854                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1855                                     (phba->sli4_hba.pport_name_sta ==
1856                                      LPFC_SLI4_PPNAME_NON))
1857                                         phba->Port[j] = 0;
1858                                 continue;
1859                         }
1860                         else {
1861                                 index += 2;
1862                                 i = vpd[index];
1863                                 index += 1;
1864                                 index += i;
1865                                 Length -= (3 + i);
1866                         }
1867                 }
1868                 finished = 0;
1869                 break;
1870                 case 0x78:
1871                         finished = 1;
1872                         break;
1873                 default:
1874                         index ++;
1875                         break;
1876                 }
1877         }
1878
1879         return(1);
1880 }
1881
1882 /**
1883  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1884  * @phba: pointer to lpfc hba data structure.
1885  * @mdp: pointer to the data structure to hold the derived model name.
1886  * @descp: pointer to the data structure to hold the derived description.
1887  *
1888  * This routine retrieves HBA's description based on its registered PCI device
1889  * ID. The @descp passed into this function points to an array of 256 chars. It
1890  * shall be returned with the model name, maximum speed, and the host bus type.
1891  * The @mdp passed into this function points to an array of 80 chars. When the
1892  * function returns, the @mdp will be filled with the model name.
1893  **/
1894 static void
1895 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1896 {
1897         lpfc_vpd_t *vp;
1898         uint16_t dev_id = phba->pcidev->device;
1899         int max_speed;
1900         int GE = 0;
1901         int oneConnect = 0; /* default is not a oneConnect */
1902         struct {
1903                 char *name;
1904                 char *bus;
1905                 char *function;
1906         } m = {"<Unknown>", "", ""};
1907
1908         if (mdp && mdp[0] != '\0'
1909                 && descp && descp[0] != '\0')
1910                 return;
1911
1912         if (phba->lmt & LMT_16Gb)
1913                 max_speed = 16;
1914         else if (phba->lmt & LMT_10Gb)
1915                 max_speed = 10;
1916         else if (phba->lmt & LMT_8Gb)
1917                 max_speed = 8;
1918         else if (phba->lmt & LMT_4Gb)
1919                 max_speed = 4;
1920         else if (phba->lmt & LMT_2Gb)
1921                 max_speed = 2;
1922         else if (phba->lmt & LMT_1Gb)
1923                 max_speed = 1;
1924         else
1925                 max_speed = 0;
1926
1927         vp = &phba->vpd;
1928
1929         switch (dev_id) {
1930         case PCI_DEVICE_ID_FIREFLY:
1931                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1932                 break;
1933         case PCI_DEVICE_ID_SUPERFLY:
1934                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1935                         m = (typeof(m)){"LP7000", "PCI",
1936                                         "Fibre Channel Adapter"};
1937                 else
1938                         m = (typeof(m)){"LP7000E", "PCI",
1939                                         "Fibre Channel Adapter"};
1940                 break;
1941         case PCI_DEVICE_ID_DRAGONFLY:
1942                 m = (typeof(m)){"LP8000", "PCI",
1943                                 "Fibre Channel Adapter"};
1944                 break;
1945         case PCI_DEVICE_ID_CENTAUR:
1946                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1947                         m = (typeof(m)){"LP9002", "PCI",
1948                                         "Fibre Channel Adapter"};
1949                 else
1950                         m = (typeof(m)){"LP9000", "PCI",
1951                                         "Fibre Channel Adapter"};
1952                 break;
1953         case PCI_DEVICE_ID_RFLY:
1954                 m = (typeof(m)){"LP952", "PCI",
1955                                 "Fibre Channel Adapter"};
1956                 break;
1957         case PCI_DEVICE_ID_PEGASUS:
1958                 m = (typeof(m)){"LP9802", "PCI-X",
1959                                 "Fibre Channel Adapter"};
1960                 break;
1961         case PCI_DEVICE_ID_THOR:
1962                 m = (typeof(m)){"LP10000", "PCI-X",
1963                                 "Fibre Channel Adapter"};
1964                 break;
1965         case PCI_DEVICE_ID_VIPER:
1966                 m = (typeof(m)){"LPX1000",  "PCI-X",
1967                                 "Fibre Channel Adapter"};
1968                 break;
1969         case PCI_DEVICE_ID_PFLY:
1970                 m = (typeof(m)){"LP982", "PCI-X",
1971                                 "Fibre Channel Adapter"};
1972                 break;
1973         case PCI_DEVICE_ID_TFLY:
1974                 m = (typeof(m)){"LP1050", "PCI-X",
1975                                 "Fibre Channel Adapter"};
1976                 break;
1977         case PCI_DEVICE_ID_HELIOS:
1978                 m = (typeof(m)){"LP11000", "PCI-X2",
1979                                 "Fibre Channel Adapter"};
1980                 break;
1981         case PCI_DEVICE_ID_HELIOS_SCSP:
1982                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1983                                 "Fibre Channel Adapter"};
1984                 break;
1985         case PCI_DEVICE_ID_HELIOS_DCSP:
1986                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1987                                 "Fibre Channel Adapter"};
1988                 break;
1989         case PCI_DEVICE_ID_NEPTUNE:
1990                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1991                 break;
1992         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1993                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1994                 break;
1995         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1996                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1997                 break;
1998         case PCI_DEVICE_ID_BMID:
1999                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2000                 break;
2001         case PCI_DEVICE_ID_BSMB:
2002                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
2003                 break;
2004         case PCI_DEVICE_ID_ZEPHYR:
2005                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2006                 break;
2007         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2008                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2009                 break;
2010         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2011                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2012                 GE = 1;
2013                 break;
2014         case PCI_DEVICE_ID_ZMID:
2015                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2016                 break;
2017         case PCI_DEVICE_ID_ZSMB:
2018                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2019                 break;
2020         case PCI_DEVICE_ID_LP101:
2021                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2022                 break;
2023         case PCI_DEVICE_ID_LP10000S:
2024                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2025                 break;
2026         case PCI_DEVICE_ID_LP11000S:
2027                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2028                 break;
2029         case PCI_DEVICE_ID_LPE11000S:
2030                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2031                 break;
2032         case PCI_DEVICE_ID_SAT:
2033                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2034                 break;
2035         case PCI_DEVICE_ID_SAT_MID:
2036                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2037                 break;
2038         case PCI_DEVICE_ID_SAT_SMB:
2039                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2040                 break;
2041         case PCI_DEVICE_ID_SAT_DCSP:
2042                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2043                 break;
2044         case PCI_DEVICE_ID_SAT_SCSP:
2045                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2046                 break;
2047         case PCI_DEVICE_ID_SAT_S:
2048                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2049                 break;
2050         case PCI_DEVICE_ID_HORNET:
2051                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2052                 GE = 1;
2053                 break;
2054         case PCI_DEVICE_ID_PROTEUS_VF:
2055                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2056                                 "Fibre Channel Adapter"};
2057                 break;
2058         case PCI_DEVICE_ID_PROTEUS_PF:
2059                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2060                                 "Fibre Channel Adapter"};
2061                 break;
2062         case PCI_DEVICE_ID_PROTEUS_S:
2063                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2064                                 "Fibre Channel Adapter"};
2065                 break;
2066         case PCI_DEVICE_ID_TIGERSHARK:
2067                 oneConnect = 1;
2068                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2069                 break;
2070         case PCI_DEVICE_ID_TOMCAT:
2071                 oneConnect = 1;
2072                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2073                 break;
2074         case PCI_DEVICE_ID_FALCON:
2075                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2076                                 "EmulexSecure Fibre"};
2077                 break;
2078         case PCI_DEVICE_ID_BALIUS:
2079                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2080                                 "Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_LANCER_FC:
2083         case PCI_DEVICE_ID_LANCER_FC_VF:
2084                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_LANCER_FCOE:
2087         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2088                 oneConnect = 1;
2089                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2090                 break;
2091         case PCI_DEVICE_ID_SKYHAWK:
2092         case PCI_DEVICE_ID_SKYHAWK_VF:
2093                 oneConnect = 1;
2094                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2095                 break;
2096         default:
2097                 m = (typeof(m)){"Unknown", "", ""};
2098                 break;
2099         }
2100
2101         if (mdp && mdp[0] == '\0')
2102                 snprintf(mdp, 79,"%s", m.name);
2103         /*
2104          * oneConnect hba requires special processing, they are all initiators
2105          * and we put the port number on the end
2106          */
2107         if (descp && descp[0] == '\0') {
2108                 if (oneConnect)
2109                         snprintf(descp, 255,
2110                                 "Emulex OneConnect %s, %s Initiator %s",
2111                                 m.name, m.function,
2112                                 phba->Port);
2113                 else if (max_speed == 0)
2114                         snprintf(descp, 255,
2115                                 "Emulex %s %s %s ",
2116                                 m.name, m.bus, m.function);
2117                 else
2118                         snprintf(descp, 255,
2119                                 "Emulex %s %d%s %s %s",
2120                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2121                                 m.bus, m.function);
2122         }
2123 }
2124
2125 /**
2126  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2127  * @phba: pointer to lpfc hba data structure.
2128  * @pring: pointer to a IOCB ring.
2129  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2130  *
2131  * This routine posts a given number of IOCBs with the associated DMA buffer
2132  * descriptors specified by the cnt argument to the given IOCB ring.
2133  *
2134  * Return codes
2135  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2136  **/
2137 int
2138 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2139 {
2140         IOCB_t *icmd;
2141         struct lpfc_iocbq *iocb;
2142         struct lpfc_dmabuf *mp1, *mp2;
2143
2144         cnt += pring->missbufcnt;
2145
2146         /* While there are buffers to post */
2147         while (cnt > 0) {
2148                 /* Allocate buffer for  command iocb */
2149                 iocb = lpfc_sli_get_iocbq(phba);
2150                 if (iocb == NULL) {
2151                         pring->missbufcnt = cnt;
2152                         return cnt;
2153                 }
2154                 icmd = &iocb->iocb;
2155
2156                 /* 2 buffers can be posted per command */
2157                 /* Allocate buffer to post */
2158                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2159                 if (mp1)
2160                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2161                 if (!mp1 || !mp1->virt) {
2162                         kfree(mp1);
2163                         lpfc_sli_release_iocbq(phba, iocb);
2164                         pring->missbufcnt = cnt;
2165                         return cnt;
2166                 }
2167
2168                 INIT_LIST_HEAD(&mp1->list);
2169                 /* Allocate buffer to post */
2170                 if (cnt > 1) {
2171                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2172                         if (mp2)
2173                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2174                                                             &mp2->phys);
2175                         if (!mp2 || !mp2->virt) {
2176                                 kfree(mp2);
2177                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2178                                 kfree(mp1);
2179                                 lpfc_sli_release_iocbq(phba, iocb);
2180                                 pring->missbufcnt = cnt;
2181                                 return cnt;
2182                         }
2183
2184                         INIT_LIST_HEAD(&mp2->list);
2185                 } else {
2186                         mp2 = NULL;
2187                 }
2188
2189                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2190                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2191                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2192                 icmd->ulpBdeCount = 1;
2193                 cnt--;
2194                 if (mp2) {
2195                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2196                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2197                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2198                         cnt--;
2199                         icmd->ulpBdeCount = 2;
2200                 }
2201
2202                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2203                 icmd->ulpLe = 1;
2204
2205                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2206                     IOCB_ERROR) {
2207                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2208                         kfree(mp1);
2209                         cnt++;
2210                         if (mp2) {
2211                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2212                                 kfree(mp2);
2213                                 cnt++;
2214                         }
2215                         lpfc_sli_release_iocbq(phba, iocb);
2216                         pring->missbufcnt = cnt;
2217                         return cnt;
2218                 }
2219                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2220                 if (mp2)
2221                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2222         }
2223         pring->missbufcnt = 0;
2224         return 0;
2225 }
2226
2227 /**
2228  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2229  * @phba: pointer to lpfc hba data structure.
2230  *
2231  * This routine posts initial receive IOCB buffers to the ELS ring. The
2232  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2233  * set to 64 IOCBs.
2234  *
2235  * Return codes
2236  *   0 - success (currently always success)
2237  **/
2238 static int
2239 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2240 {
2241         struct lpfc_sli *psli = &phba->sli;
2242
2243         /* Ring 0, ELS / CT buffers */
2244         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2245         /* Ring 2 - FCP no buffers needed */
2246
2247         return 0;
2248 }
2249
2250 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2251
2252 /**
2253  * lpfc_sha_init - Set up initial array of hash table entries
2254  * @HashResultPointer: pointer to an array as hash table.
2255  *
2256  * This routine sets up the initial values to the array of hash table entries
2257  * for the LC HBAs.
2258  **/
2259 static void
2260 lpfc_sha_init(uint32_t * HashResultPointer)
2261 {
2262         HashResultPointer[0] = 0x67452301;
2263         HashResultPointer[1] = 0xEFCDAB89;
2264         HashResultPointer[2] = 0x98BADCFE;
2265         HashResultPointer[3] = 0x10325476;
2266         HashResultPointer[4] = 0xC3D2E1F0;
2267 }
2268
2269 /**
2270  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2271  * @HashResultPointer: pointer to an initial/result hash table.
2272  * @HashWorkingPointer: pointer to an working hash table.
2273  *
2274  * This routine iterates an initial hash table pointed by @HashResultPointer
2275  * with the values from the working hash table pointeed by @HashWorkingPointer.
2276  * The results are putting back to the initial hash table, returned through
2277  * the @HashResultPointer as the result hash table.
2278  **/
2279 static void
2280 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2281 {
2282         int t;
2283         uint32_t TEMP;
2284         uint32_t A, B, C, D, E;
2285         t = 16;
2286         do {
2287                 HashWorkingPointer[t] =
2288                     S(1,
2289                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2290                                                                      8] ^
2291                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2292         } while (++t <= 79);
2293         t = 0;
2294         A = HashResultPointer[0];
2295         B = HashResultPointer[1];
2296         C = HashResultPointer[2];
2297         D = HashResultPointer[3];
2298         E = HashResultPointer[4];
2299
2300         do {
2301                 if (t < 20) {
2302                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2303                 } else if (t < 40) {
2304                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2305                 } else if (t < 60) {
2306                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2307                 } else {
2308                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2309                 }
2310                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2311                 E = D;
2312                 D = C;
2313                 C = S(30, B);
2314                 B = A;
2315                 A = TEMP;
2316         } while (++t <= 79);
2317
2318         HashResultPointer[0] += A;
2319         HashResultPointer[1] += B;
2320         HashResultPointer[2] += C;
2321         HashResultPointer[3] += D;
2322         HashResultPointer[4] += E;
2323
2324 }
2325
2326 /**
2327  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2328  * @RandomChallenge: pointer to the entry of host challenge random number array.
2329  * @HashWorking: pointer to the entry of the working hash array.
2330  *
2331  * This routine calculates the working hash array referred by @HashWorking
2332  * from the challenge random numbers associated with the host, referred by
2333  * @RandomChallenge. The result is put into the entry of the working hash
2334  * array and returned by reference through @HashWorking.
2335  **/
2336 static void
2337 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2338 {
2339         *HashWorking = (*RandomChallenge ^ *HashWorking);
2340 }
2341
2342 /**
2343  * lpfc_hba_init - Perform special handling for LC HBA initialization
2344  * @phba: pointer to lpfc hba data structure.
2345  * @hbainit: pointer to an array of unsigned 32-bit integers.
2346  *
2347  * This routine performs the special handling for LC HBA initialization.
2348  **/
2349 void
2350 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2351 {
2352         int t;
2353         uint32_t *HashWorking;
2354         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2355
2356         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2357         if (!HashWorking)
2358                 return;
2359
2360         HashWorking[0] = HashWorking[78] = *pwwnn++;
2361         HashWorking[1] = HashWorking[79] = *pwwnn;
2362
2363         for (t = 0; t < 7; t++)
2364                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2365
2366         lpfc_sha_init(hbainit);
2367         lpfc_sha_iterate(hbainit, HashWorking);
2368         kfree(HashWorking);
2369 }
2370
2371 /**
2372  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2373  * @vport: pointer to a virtual N_Port data structure.
2374  *
2375  * This routine performs the necessary cleanups before deleting the @vport.
2376  * It invokes the discovery state machine to perform necessary state
2377  * transitions and to release the ndlps associated with the @vport. Note,
2378  * the physical port is treated as @vport 0.
2379  **/
2380 void
2381 lpfc_cleanup(struct lpfc_vport *vport)
2382 {
2383         struct lpfc_hba   *phba = vport->phba;
2384         struct lpfc_nodelist *ndlp, *next_ndlp;
2385         int i = 0;
2386
2387         if (phba->link_state > LPFC_LINK_DOWN)
2388                 lpfc_port_link_failure(vport);
2389
2390         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2391                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2392                         ndlp = lpfc_enable_node(vport, ndlp,
2393                                                 NLP_STE_UNUSED_NODE);
2394                         if (!ndlp)
2395                                 continue;
2396                         spin_lock_irq(&phba->ndlp_lock);
2397                         NLP_SET_FREE_REQ(ndlp);
2398                         spin_unlock_irq(&phba->ndlp_lock);
2399                         /* Trigger the release of the ndlp memory */
2400                         lpfc_nlp_put(ndlp);
2401                         continue;
2402                 }
2403                 spin_lock_irq(&phba->ndlp_lock);
2404                 if (NLP_CHK_FREE_REQ(ndlp)) {
2405                         /* The ndlp should not be in memory free mode already */
2406                         spin_unlock_irq(&phba->ndlp_lock);
2407                         continue;
2408                 } else
2409                         /* Indicate request for freeing ndlp memory */
2410                         NLP_SET_FREE_REQ(ndlp);
2411                 spin_unlock_irq(&phba->ndlp_lock);
2412
2413                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2414                     ndlp->nlp_DID == Fabric_DID) {
2415                         /* Just free up ndlp with Fabric_DID for vports */
2416                         lpfc_nlp_put(ndlp);
2417                         continue;
2418                 }
2419
2420                 /* take care of nodes in unused state before the state
2421                  * machine taking action.
2422                  */
2423                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2424                         lpfc_nlp_put(ndlp);
2425                         continue;
2426                 }
2427
2428                 if (ndlp->nlp_type & NLP_FABRIC)
2429                         lpfc_disc_state_machine(vport, ndlp, NULL,
2430                                         NLP_EVT_DEVICE_RECOVERY);
2431
2432                 lpfc_disc_state_machine(vport, ndlp, NULL,
2433                                              NLP_EVT_DEVICE_RM);
2434         }
2435
2436         /* At this point, ALL ndlp's should be gone
2437          * because of the previous NLP_EVT_DEVICE_RM.
2438          * Lets wait for this to happen, if needed.
2439          */
2440         while (!list_empty(&vport->fc_nodes)) {
2441                 if (i++ > 3000) {
2442                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2443                                 "0233 Nodelist not empty\n");
2444                         list_for_each_entry_safe(ndlp, next_ndlp,
2445                                                 &vport->fc_nodes, nlp_listp) {
2446                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2447                                                 LOG_NODE,
2448                                                 "0282 did:x%x ndlp:x%p "
2449                                                 "usgmap:x%x refcnt:%d\n",
2450                                                 ndlp->nlp_DID, (void *)ndlp,
2451                                                 ndlp->nlp_usg_map,
2452                                                 atomic_read(
2453                                                         &ndlp->kref.refcount));
2454                         }
2455                         break;
2456                 }
2457
2458                 /* Wait for any activity on ndlps to settle */
2459                 msleep(10);
2460         }
2461         lpfc_cleanup_vports_rrqs(vport, NULL);
2462 }
2463
2464 /**
2465  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2466  * @vport: pointer to a virtual N_Port data structure.
2467  *
2468  * This routine stops all the timers associated with a @vport. This function
2469  * is invoked before disabling or deleting a @vport. Note that the physical
2470  * port is treated as @vport 0.
2471  **/
2472 void
2473 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2474 {
2475         del_timer_sync(&vport->els_tmofunc);
2476         del_timer_sync(&vport->fc_fdmitmo);
2477         del_timer_sync(&vport->delayed_disc_tmo);
2478         lpfc_can_disctmo(vport);
2479         return;
2480 }
2481
2482 /**
2483  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2484  * @phba: pointer to lpfc hba data structure.
2485  *
2486  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2487  * caller of this routine should already hold the host lock.
2488  **/
2489 void
2490 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2491 {
2492         /* Clear pending FCF rediscovery wait flag */
2493         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2494
2495         /* Now, try to stop the timer */
2496         del_timer(&phba->fcf.redisc_wait);
2497 }
2498
2499 /**
2500  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2501  * @phba: pointer to lpfc hba data structure.
2502  *
2503  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2504  * checks whether the FCF rediscovery wait timer is pending with the host
2505  * lock held before proceeding with disabling the timer and clearing the
2506  * wait timer pendig flag.
2507  **/
2508 void
2509 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2510 {
2511         spin_lock_irq(&phba->hbalock);
2512         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2513                 /* FCF rediscovery timer already fired or stopped */
2514                 spin_unlock_irq(&phba->hbalock);
2515                 return;
2516         }
2517         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2518         /* Clear failover in progress flags */
2519         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2520         spin_unlock_irq(&phba->hbalock);
2521 }
2522
2523 /**
2524  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2525  * @phba: pointer to lpfc hba data structure.
2526  *
2527  * This routine stops all the timers associated with a HBA. This function is
2528  * invoked before either putting a HBA offline or unloading the driver.
2529  **/
2530 void
2531 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2532 {
2533         lpfc_stop_vport_timers(phba->pport);
2534         del_timer_sync(&phba->sli.mbox_tmo);
2535         del_timer_sync(&phba->fabric_block_timer);
2536         del_timer_sync(&phba->eratt_poll);
2537         del_timer_sync(&phba->hb_tmofunc);
2538         if (phba->sli_rev == LPFC_SLI_REV4) {
2539                 del_timer_sync(&phba->rrq_tmr);
2540                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2541         }
2542         phba->hb_outstanding = 0;
2543
2544         switch (phba->pci_dev_grp) {
2545         case LPFC_PCI_DEV_LP:
2546                 /* Stop any LightPulse device specific driver timers */
2547                 del_timer_sync(&phba->fcp_poll_timer);
2548                 break;
2549         case LPFC_PCI_DEV_OC:
2550                 /* Stop any OneConnect device sepcific driver timers */
2551                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2552                 break;
2553         default:
2554                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2555                                 "0297 Invalid device group (x%x)\n",
2556                                 phba->pci_dev_grp);
2557                 break;
2558         }
2559         return;
2560 }
2561
2562 /**
2563  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2564  * @phba: pointer to lpfc hba data structure.
2565  *
2566  * This routine marks a HBA's management interface as blocked. Once the HBA's
2567  * management interface is marked as blocked, all the user space access to
2568  * the HBA, whether they are from sysfs interface or libdfc interface will
2569  * all be blocked. The HBA is set to block the management interface when the
2570  * driver prepares the HBA interface for online or offline.
2571  **/
2572 static void
2573 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2574 {
2575         unsigned long iflag;
2576         uint8_t actcmd = MBX_HEARTBEAT;
2577         unsigned long timeout;
2578
2579         spin_lock_irqsave(&phba->hbalock, iflag);
2580         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2581         spin_unlock_irqrestore(&phba->hbalock, iflag);
2582         if (mbx_action == LPFC_MBX_NO_WAIT)
2583                 return;
2584         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2585         spin_lock_irqsave(&phba->hbalock, iflag);
2586         if (phba->sli.mbox_active) {
2587                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2588                 /* Determine how long we might wait for the active mailbox
2589                  * command to be gracefully completed by firmware.
2590                  */
2591                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2592                                 phba->sli.mbox_active) * 1000) + jiffies;
2593         }
2594         spin_unlock_irqrestore(&phba->hbalock, iflag);
2595
2596         /* Wait for the outstnading mailbox command to complete */
2597         while (phba->sli.mbox_active) {
2598                 /* Check active mailbox complete status every 2ms */
2599                 msleep(2);
2600                 if (time_after(jiffies, timeout)) {
2601                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2602                                 "2813 Mgmt IO is Blocked %x "
2603                                 "- mbox cmd %x still active\n",
2604                                 phba->sli.sli_flag, actcmd);
2605                         break;
2606                 }
2607         }
2608 }
2609
2610 /**
2611  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2612  * @phba: pointer to lpfc hba data structure.
2613  *
2614  * Allocate RPIs for all active remote nodes. This is needed whenever
2615  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2616  * is to fixup the temporary rpi assignments.
2617  **/
2618 void
2619 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2620 {
2621         struct lpfc_nodelist  *ndlp, *next_ndlp;
2622         struct lpfc_vport **vports;
2623         int i;
2624
2625         if (phba->sli_rev != LPFC_SLI_REV4)
2626                 return;
2627
2628         vports = lpfc_create_vport_work_array(phba);
2629         if (vports != NULL) {
2630                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2631                         if (vports[i]->load_flag & FC_UNLOADING)
2632                                 continue;
2633
2634                         list_for_each_entry_safe(ndlp, next_ndlp,
2635                                                  &vports[i]->fc_nodes,
2636                                                  nlp_listp) {
2637                                 if (NLP_CHK_NODE_ACT(ndlp))
2638                                         ndlp->nlp_rpi =
2639                                                 lpfc_sli4_alloc_rpi(phba);
2640                         }
2641                 }
2642         }
2643         lpfc_destroy_vport_work_array(phba, vports);
2644 }
2645
2646 /**
2647  * lpfc_online - Initialize and bring a HBA online
2648  * @phba: pointer to lpfc hba data structure.
2649  *
2650  * This routine initializes the HBA and brings a HBA online. During this
2651  * process, the management interface is blocked to prevent user space access
2652  * to the HBA interfering with the driver initialization.
2653  *
2654  * Return codes
2655  *   0 - successful
2656  *   1 - failed
2657  **/
2658 int
2659 lpfc_online(struct lpfc_hba *phba)
2660 {
2661         struct lpfc_vport *vport;
2662         struct lpfc_vport **vports;
2663         int i;
2664         bool vpis_cleared = false;
2665
2666         if (!phba)
2667                 return 0;
2668         vport = phba->pport;
2669
2670         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2671                 return 0;
2672
2673         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2674                         "0458 Bring Adapter online\n");
2675
2676         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2677
2678         if (!lpfc_sli_queue_setup(phba)) {
2679                 lpfc_unblock_mgmt_io(phba);
2680                 return 1;
2681         }
2682
2683         if (phba->sli_rev == LPFC_SLI_REV4) {
2684                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2685                         lpfc_unblock_mgmt_io(phba);
2686                         return 1;
2687                 }
2688                 spin_lock_irq(&phba->hbalock);
2689                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2690                         vpis_cleared = true;
2691                 spin_unlock_irq(&phba->hbalock);
2692         } else {
2693                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2694                         lpfc_unblock_mgmt_io(phba);
2695                         return 1;
2696                 }
2697         }
2698
2699         vports = lpfc_create_vport_work_array(phba);
2700         if (vports != NULL)
2701                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2702                         struct Scsi_Host *shost;
2703                         shost = lpfc_shost_from_vport(vports[i]);
2704                         spin_lock_irq(shost->host_lock);
2705                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2706                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2707                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2708                         if (phba->sli_rev == LPFC_SLI_REV4) {
2709                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2710                                 if ((vpis_cleared) &&
2711                                     (vports[i]->port_type !=
2712                                         LPFC_PHYSICAL_PORT))
2713                                         vports[i]->vpi = 0;
2714                         }
2715                         spin_unlock_irq(shost->host_lock);
2716                 }
2717                 lpfc_destroy_vport_work_array(phba, vports);
2718
2719         lpfc_unblock_mgmt_io(phba);
2720         return 0;
2721 }
2722
2723 /**
2724  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2725  * @phba: pointer to lpfc hba data structure.
2726  *
2727  * This routine marks a HBA's management interface as not blocked. Once the
2728  * HBA's management interface is marked as not blocked, all the user space
2729  * access to the HBA, whether they are from sysfs interface or libdfc
2730  * interface will be allowed. The HBA is set to block the management interface
2731  * when the driver prepares the HBA interface for online or offline and then
2732  * set to unblock the management interface afterwards.
2733  **/
2734 void
2735 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2736 {
2737         unsigned long iflag;
2738
2739         spin_lock_irqsave(&phba->hbalock, iflag);
2740         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2741         spin_unlock_irqrestore(&phba->hbalock, iflag);
2742 }
2743
2744 /**
2745  * lpfc_offline_prep - Prepare a HBA to be brought offline
2746  * @phba: pointer to lpfc hba data structure.
2747  *
2748  * This routine is invoked to prepare a HBA to be brought offline. It performs
2749  * unregistration login to all the nodes on all vports and flushes the mailbox
2750  * queue to make it ready to be brought offline.
2751  **/
2752 void
2753 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2754 {
2755         struct lpfc_vport *vport = phba->pport;
2756         struct lpfc_nodelist  *ndlp, *next_ndlp;
2757         struct lpfc_vport **vports;
2758         struct Scsi_Host *shost;
2759         int i;
2760
2761         if (vport->fc_flag & FC_OFFLINE_MODE)
2762                 return;
2763
2764         lpfc_block_mgmt_io(phba, mbx_action);
2765
2766         lpfc_linkdown(phba);
2767
2768         /* Issue an unreg_login to all nodes on all vports */
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                         shost = lpfc_shost_from_vport(vports[i]);
2775                         spin_lock_irq(shost->host_lock);
2776                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2777                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2778                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2779                         spin_unlock_irq(shost->host_lock);
2780
2781                         shost = lpfc_shost_from_vport(vports[i]);
2782                         list_for_each_entry_safe(ndlp, next_ndlp,
2783                                                  &vports[i]->fc_nodes,
2784                                                  nlp_listp) {
2785                                 if (!NLP_CHK_NODE_ACT(ndlp))
2786                                         continue;
2787                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2788                                         continue;
2789                                 if (ndlp->nlp_type & NLP_FABRIC) {
2790                                         lpfc_disc_state_machine(vports[i], ndlp,
2791                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2792                                         lpfc_disc_state_machine(vports[i], ndlp,
2793                                                 NULL, NLP_EVT_DEVICE_RM);
2794                                 }
2795                                 spin_lock_irq(shost->host_lock);
2796                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2797                                 spin_unlock_irq(shost->host_lock);
2798                                 /*
2799                                  * Whenever an SLI4 port goes offline, free the
2800                                  * RPI. Get a new RPI when the adapter port
2801                                  * comes back online.
2802                                  */
2803                                 if (phba->sli_rev == LPFC_SLI_REV4)
2804                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2805                                 lpfc_unreg_rpi(vports[i], ndlp);
2806                         }
2807                 }
2808         }
2809         lpfc_destroy_vport_work_array(phba, vports);
2810
2811         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2812 }
2813
2814 /**
2815  * lpfc_offline - Bring a HBA offline
2816  * @phba: pointer to lpfc hba data structure.
2817  *
2818  * This routine actually brings a HBA offline. It stops all the timers
2819  * associated with the HBA, brings down the SLI layer, and eventually
2820  * marks the HBA as in offline state for the upper layer protocol.
2821  **/
2822 void
2823 lpfc_offline(struct lpfc_hba *phba)
2824 {
2825         struct Scsi_Host  *shost;
2826         struct lpfc_vport **vports;
2827         int i;
2828
2829         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2830                 return;
2831
2832         /* stop port and all timers associated with this hba */
2833         lpfc_stop_port(phba);
2834         vports = lpfc_create_vport_work_array(phba);
2835         if (vports != NULL)
2836                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2837                         lpfc_stop_vport_timers(vports[i]);
2838         lpfc_destroy_vport_work_array(phba, vports);
2839         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2840                         "0460 Bring Adapter offline\n");
2841         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2842            now.  */
2843         lpfc_sli_hba_down(phba);
2844         spin_lock_irq(&phba->hbalock);
2845         phba->work_ha = 0;
2846         spin_unlock_irq(&phba->hbalock);
2847         vports = lpfc_create_vport_work_array(phba);
2848         if (vports != NULL)
2849                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2850                         shost = lpfc_shost_from_vport(vports[i]);
2851                         spin_lock_irq(shost->host_lock);
2852                         vports[i]->work_port_events = 0;
2853                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2854                         spin_unlock_irq(shost->host_lock);
2855                 }
2856         lpfc_destroy_vport_work_array(phba, vports);
2857 }
2858
2859 /**
2860  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2861  * @phba: pointer to lpfc hba data structure.
2862  *
2863  * This routine is to free all the SCSI buffers and IOCBs from the driver
2864  * list back to kernel. It is called from lpfc_pci_remove_one to free
2865  * the internal resources before the device is removed from the system.
2866  **/
2867 static void
2868 lpfc_scsi_free(struct lpfc_hba *phba)
2869 {
2870         struct lpfc_scsi_buf *sb, *sb_next;
2871         struct lpfc_iocbq *io, *io_next;
2872
2873         spin_lock_irq(&phba->hbalock);
2874
2875         /* Release all the lpfc_scsi_bufs maintained by this host. */
2876
2877         spin_lock(&phba->scsi_buf_list_put_lock);
2878         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2879                                  list) {
2880                 list_del(&sb->list);
2881                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2882                               sb->dma_handle);
2883                 kfree(sb);
2884                 phba->total_scsi_bufs--;
2885         }
2886         spin_unlock(&phba->scsi_buf_list_put_lock);
2887
2888         spin_lock(&phba->scsi_buf_list_get_lock);
2889         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2890                                  list) {
2891                 list_del(&sb->list);
2892                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2893                               sb->dma_handle);
2894                 kfree(sb);
2895                 phba->total_scsi_bufs--;
2896         }
2897         spin_unlock(&phba->scsi_buf_list_get_lock);
2898
2899         /* Release all the lpfc_iocbq entries maintained by this host. */
2900         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2901                 list_del(&io->list);
2902                 kfree(io);
2903                 phba->total_iocbq_bufs--;
2904         }
2905
2906         spin_unlock_irq(&phba->hbalock);
2907 }
2908
2909 /**
2910  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2911  * @phba: pointer to lpfc hba data structure.
2912  *
2913  * This routine first calculates the sizes of the current els and allocated
2914  * scsi sgl lists, and then goes through all sgls to updates the physical
2915  * XRIs assigned due to port function reset. During port initialization, the
2916  * current els and allocated scsi sgl lists are 0s.
2917  *
2918  * Return codes
2919  *   0 - successful (for now, it always returns 0)
2920  **/
2921 int
2922 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2923 {
2924         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2925         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2926         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2927         LIST_HEAD(els_sgl_list);
2928         LIST_HEAD(scsi_sgl_list);
2929         int rc;
2930
2931         /*
2932          * update on pci function's els xri-sgl list
2933          */
2934         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2935         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2936                 /* els xri-sgl expanded */
2937                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2938                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2939                                 "3157 ELS xri-sgl count increased from "
2940                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2941                                 els_xri_cnt);
2942                 /* allocate the additional els sgls */
2943                 for (i = 0; i < xri_cnt; i++) {
2944                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2945                                              GFP_KERNEL);
2946                         if (sglq_entry == NULL) {
2947                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2948                                                 "2562 Failure to allocate an "
2949                                                 "ELS sgl entry:%d\n", i);
2950                                 rc = -ENOMEM;
2951                                 goto out_free_mem;
2952                         }
2953                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2954                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2955                                                            &sglq_entry->phys);
2956                         if (sglq_entry->virt == NULL) {
2957                                 kfree(sglq_entry);
2958                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2959                                                 "2563 Failure to allocate an "
2960                                                 "ELS mbuf:%d\n", i);
2961                                 rc = -ENOMEM;
2962                                 goto out_free_mem;
2963                         }
2964                         sglq_entry->sgl = sglq_entry->virt;
2965                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2966                         sglq_entry->state = SGL_FREED;
2967                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2968                 }
2969                 spin_lock_irq(&phba->hbalock);
2970                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2971                 spin_unlock_irq(&phba->hbalock);
2972         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2973                 /* els xri-sgl shrinked */
2974                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2975                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2976                                 "3158 ELS xri-sgl count decreased from "
2977                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2978                                 els_xri_cnt);
2979                 spin_lock_irq(&phba->hbalock);
2980                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2981                 spin_unlock_irq(&phba->hbalock);
2982                 /* release extra els sgls from list */
2983                 for (i = 0; i < xri_cnt; i++) {
2984                         list_remove_head(&els_sgl_list,
2985                                          sglq_entry, struct lpfc_sglq, list);
2986                         if (sglq_entry) {
2987                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2988                                                sglq_entry->phys);
2989                                 kfree(sglq_entry);
2990                         }
2991                 }
2992                 spin_lock_irq(&phba->hbalock);
2993                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2994                 spin_unlock_irq(&phba->hbalock);
2995         } else
2996                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2997                                 "3163 ELS xri-sgl count unchanged: %d\n",
2998                                 els_xri_cnt);
2999         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3000
3001         /* update xris to els sgls on the list */
3002         sglq_entry = NULL;
3003         sglq_entry_next = NULL;
3004         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3005                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3006                 lxri = lpfc_sli4_next_xritag(phba);
3007                 if (lxri == NO_XRI) {
3008                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3009                                         "2400 Failed to allocate xri for "
3010                                         "ELS sgl\n");
3011                         rc = -ENOMEM;
3012                         goto out_free_mem;
3013                 }
3014                 sglq_entry->sli4_lxritag = lxri;
3015                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3016         }
3017
3018         /*
3019          * update on pci function's allocated scsi xri-sgl list
3020          */
3021         phba->total_scsi_bufs = 0;
3022
3023         /* maximum number of xris available for scsi buffers */
3024         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3025                                       els_xri_cnt;
3026
3027         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3028                         "2401 Current allocated SCSI xri-sgl count:%d, "
3029                         "maximum  SCSI xri count:%d\n",
3030                         phba->sli4_hba.scsi_xri_cnt,
3031                         phba->sli4_hba.scsi_xri_max);
3032
3033         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3034         spin_lock(&phba->scsi_buf_list_put_lock);
3035         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3036         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3037         spin_unlock(&phba->scsi_buf_list_put_lock);
3038         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3039
3040         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3041                 /* max scsi xri shrinked below the allocated scsi buffers */
3042                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3043                                         phba->sli4_hba.scsi_xri_max;
3044                 /* release the extra allocated scsi buffers */
3045                 for (i = 0; i < scsi_xri_cnt; i++) {
3046                         list_remove_head(&scsi_sgl_list, psb,
3047                                          struct lpfc_scsi_buf, list);
3048                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3049                                       psb->dma_handle);
3050                         kfree(psb);
3051                 }
3052                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3053                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3054                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3055         }
3056
3057         /* update xris associated to remaining allocated scsi buffers */
3058         psb = NULL;
3059         psb_next = NULL;
3060         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3061                 lxri = lpfc_sli4_next_xritag(phba);
3062                 if (lxri == NO_XRI) {
3063                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3064                                         "2560 Failed to allocate xri for "
3065                                         "scsi buffer\n");
3066                         rc = -ENOMEM;
3067                         goto out_free_mem;
3068                 }
3069                 psb->cur_iocbq.sli4_lxritag = lxri;
3070                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3071         }
3072         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3073         spin_lock(&phba->scsi_buf_list_put_lock);
3074         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3075         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3076         spin_unlock(&phba->scsi_buf_list_put_lock);
3077         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3078
3079         return 0;
3080
3081 out_free_mem:
3082         lpfc_free_els_sgl_list(phba);
3083         lpfc_scsi_free(phba);
3084         return rc;
3085 }
3086
3087 /**
3088  * lpfc_create_port - Create an FC port
3089  * @phba: pointer to lpfc hba data structure.
3090  * @instance: a unique integer ID to this FC port.
3091  * @dev: pointer to the device data structure.
3092  *
3093  * This routine creates a FC port for the upper layer protocol. The FC port
3094  * can be created on top of either a physical port or a virtual port provided
3095  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3096  * and associates the FC port created before adding the shost into the SCSI
3097  * layer.
3098  *
3099  * Return codes
3100  *   @vport - pointer to the virtual N_Port data structure.
3101  *   NULL - port create failed.
3102  **/
3103 struct lpfc_vport *
3104 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3105 {
3106         struct lpfc_vport *vport;
3107         struct Scsi_Host  *shost;
3108         int error = 0;
3109
3110         if (dev != &phba->pcidev->dev)
3111                 shost = scsi_host_alloc(&lpfc_vport_template,
3112                                         sizeof(struct lpfc_vport));
3113         else
3114                 shost = scsi_host_alloc(&lpfc_template,
3115                                         sizeof(struct lpfc_vport));
3116         if (!shost)
3117                 goto out;
3118
3119         vport = (struct lpfc_vport *) shost->hostdata;
3120         vport->phba = phba;
3121         vport->load_flag |= FC_LOADING;
3122         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3123         vport->fc_rscn_flush = 0;
3124
3125         lpfc_get_vport_cfgparam(vport);
3126         shost->unique_id = instance;
3127         shost->max_id = LPFC_MAX_TARGET;
3128         shost->max_lun = vport->cfg_max_luns;
3129         shost->this_id = -1;
3130         shost->max_cmd_len = 16;
3131         if (phba->sli_rev == LPFC_SLI_REV4) {
3132                 shost->dma_boundary =
3133                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3134                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3135         }
3136
3137         /*
3138          * Set initial can_queue value since 0 is no longer supported and
3139          * scsi_add_host will fail. This will be adjusted later based on the
3140          * max xri value determined in hba setup.
3141          */
3142         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3143         if (dev != &phba->pcidev->dev) {
3144                 shost->transportt = lpfc_vport_transport_template;
3145                 vport->port_type = LPFC_NPIV_PORT;
3146         } else {
3147                 shost->transportt = lpfc_transport_template;
3148                 vport->port_type = LPFC_PHYSICAL_PORT;
3149         }
3150
3151         /* Initialize all internally managed lists. */
3152         INIT_LIST_HEAD(&vport->fc_nodes);
3153         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3154         spin_lock_init(&vport->work_port_lock);
3155
3156         init_timer(&vport->fc_disctmo);
3157         vport->fc_disctmo.function = lpfc_disc_timeout;
3158         vport->fc_disctmo.data = (unsigned long)vport;
3159
3160         init_timer(&vport->fc_fdmitmo);
3161         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3162         vport->fc_fdmitmo.data = (unsigned long)vport;
3163
3164         init_timer(&vport->els_tmofunc);
3165         vport->els_tmofunc.function = lpfc_els_timeout;
3166         vport->els_tmofunc.data = (unsigned long)vport;
3167
3168         init_timer(&vport->delayed_disc_tmo);
3169         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3170         vport->delayed_disc_tmo.data = (unsigned long)vport;
3171
3172         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3173         if (error)
3174                 goto out_put_shost;
3175
3176         spin_lock_irq(&phba->hbalock);
3177         list_add_tail(&vport->listentry, &phba->port_list);
3178         spin_unlock_irq(&phba->hbalock);
3179         return vport;
3180
3181 out_put_shost:
3182         scsi_host_put(shost);
3183 out:
3184         return NULL;
3185 }
3186
3187 /**
3188  * destroy_port -  destroy an FC port
3189  * @vport: pointer to an lpfc virtual N_Port data structure.
3190  *
3191  * This routine destroys a FC port from the upper layer protocol. All the
3192  * resources associated with the port are released.
3193  **/
3194 void
3195 destroy_port(struct lpfc_vport *vport)
3196 {
3197         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3198         struct lpfc_hba  *phba = vport->phba;
3199
3200         lpfc_debugfs_terminate(vport);
3201         fc_remove_host(shost);
3202         scsi_remove_host(shost);
3203
3204         spin_lock_irq(&phba->hbalock);
3205         list_del_init(&vport->listentry);
3206         spin_unlock_irq(&phba->hbalock);
3207
3208         lpfc_cleanup(vport);
3209         return;
3210 }
3211
3212 /**
3213  * lpfc_get_instance - Get a unique integer ID
3214  *
3215  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3216  * uses the kernel idr facility to perform the task.
3217  *
3218  * Return codes:
3219  *   instance - a unique integer ID allocated as the new instance.
3220  *   -1 - lpfc get instance failed.
3221  **/
3222 int
3223 lpfc_get_instance(void)
3224 {
3225         int ret;
3226
3227         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3228         return ret < 0 ? -1 : ret;
3229 }
3230
3231 /**
3232  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3233  * @shost: pointer to SCSI host data structure.
3234  * @time: elapsed time of the scan in jiffies.
3235  *
3236  * This routine is called by the SCSI layer with a SCSI host to determine
3237  * whether the scan host is finished.
3238  *
3239  * Note: there is no scan_start function as adapter initialization will have
3240  * asynchronously kicked off the link initialization.
3241  *
3242  * Return codes
3243  *   0 - SCSI host scan is not over yet.
3244  *   1 - SCSI host scan is over.
3245  **/
3246 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3247 {
3248         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3249         struct lpfc_hba   *phba = vport->phba;
3250         int stat = 0;
3251
3252         spin_lock_irq(shost->host_lock);
3253
3254         if (vport->load_flag & FC_UNLOADING) {
3255                 stat = 1;
3256                 goto finished;
3257         }
3258         if (time >= msecs_to_jiffies(30 * 1000)) {
3259                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3260                                 "0461 Scanning longer than 30 "
3261                                 "seconds.  Continuing initialization\n");
3262                 stat = 1;
3263                 goto finished;
3264         }
3265         if (time >= msecs_to_jiffies(15 * 1000) &&
3266             phba->link_state <= LPFC_LINK_DOWN) {
3267                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3268                                 "0465 Link down longer than 15 "
3269                                 "seconds.  Continuing initialization\n");
3270                 stat = 1;
3271                 goto finished;
3272         }
3273
3274         if (vport->port_state != LPFC_VPORT_READY)
3275                 goto finished;
3276         if (vport->num_disc_nodes || vport->fc_prli_sent)
3277                 goto finished;
3278         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3279                 goto finished;
3280         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3281                 goto finished;
3282
3283         stat = 1;
3284
3285 finished:
3286         spin_unlock_irq(shost->host_lock);
3287         return stat;
3288 }
3289
3290 /**
3291  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3292  * @shost: pointer to SCSI host data structure.
3293  *
3294  * This routine initializes a given SCSI host attributes on a FC port. The
3295  * SCSI host can be either on top of a physical port or a virtual port.
3296  **/
3297 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3298 {
3299         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3300         struct lpfc_hba   *phba = vport->phba;
3301         /*
3302          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3303          */
3304
3305         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3306         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3307         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3308
3309         memset(fc_host_supported_fc4s(shost), 0,
3310                sizeof(fc_host_supported_fc4s(shost)));
3311         fc_host_supported_fc4s(shost)[2] = 1;
3312         fc_host_supported_fc4s(shost)[7] = 1;
3313
3314         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3315                                  sizeof fc_host_symbolic_name(shost));
3316
3317         fc_host_supported_speeds(shost) = 0;
3318         if (phba->lmt & LMT_16Gb)
3319                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3320         if (phba->lmt & LMT_10Gb)
3321                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3322         if (phba->lmt & LMT_8Gb)
3323                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3324         if (phba->lmt & LMT_4Gb)
3325                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3326         if (phba->lmt & LMT_2Gb)
3327                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3328         if (phba->lmt & LMT_1Gb)
3329                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3330
3331         fc_host_maxframe_size(shost) =
3332                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3333                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3334
3335         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3336
3337         /* This value is also unchanging */
3338         memset(fc_host_active_fc4s(shost), 0,
3339                sizeof(fc_host_active_fc4s(shost)));
3340         fc_host_active_fc4s(shost)[2] = 1;
3341         fc_host_active_fc4s(shost)[7] = 1;
3342
3343         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3344         spin_lock_irq(shost->host_lock);
3345         vport->load_flag &= ~FC_LOADING;
3346         spin_unlock_irq(shost->host_lock);
3347 }
3348
3349 /**
3350  * lpfc_stop_port_s3 - Stop SLI3 device port
3351  * @phba: pointer to lpfc hba data structure.
3352  *
3353  * This routine is invoked to stop an SLI3 device port, it stops the device
3354  * from generating interrupts and stops the device driver's timers for the
3355  * device.
3356  **/
3357 static void
3358 lpfc_stop_port_s3(struct lpfc_hba *phba)
3359 {
3360         /* Clear all interrupt enable conditions */
3361         writel(0, phba->HCregaddr);
3362         readl(phba->HCregaddr); /* flush */
3363         /* Clear all pending interrupts */
3364         writel(0xffffffff, phba->HAregaddr);
3365         readl(phba->HAregaddr); /* flush */
3366
3367         /* Reset some HBA SLI setup states */
3368         lpfc_stop_hba_timers(phba);
3369         phba->pport->work_port_events = 0;
3370 }
3371
3372 /**
3373  * lpfc_stop_port_s4 - Stop SLI4 device port
3374  * @phba: pointer to lpfc hba data structure.
3375  *
3376  * This routine is invoked to stop an SLI4 device port, it stops the device
3377  * from generating interrupts and stops the device driver's timers for the
3378  * device.
3379  **/
3380 static void
3381 lpfc_stop_port_s4(struct lpfc_hba *phba)
3382 {
3383         /* Reset some HBA SLI4 setup states */
3384         lpfc_stop_hba_timers(phba);
3385         phba->pport->work_port_events = 0;
3386         phba->sli4_hba.intr_enable = 0;
3387 }
3388
3389 /**
3390  * lpfc_stop_port - Wrapper function for stopping hba port
3391  * @phba: Pointer to HBA context object.
3392  *
3393  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3394  * the API jump table function pointer from the lpfc_hba struct.
3395  **/
3396 void
3397 lpfc_stop_port(struct lpfc_hba *phba)
3398 {
3399         phba->lpfc_stop_port(phba);
3400 }
3401
3402 /**
3403  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3404  * @phba: Pointer to hba for which this call is being executed.
3405  *
3406  * This routine starts the timer waiting for the FCF rediscovery to complete.
3407  **/
3408 void
3409 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3410 {
3411         unsigned long fcf_redisc_wait_tmo =
3412                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3413         /* Start fcf rediscovery wait period timer */
3414         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3415         spin_lock_irq(&phba->hbalock);
3416         /* Allow action to new fcf asynchronous event */
3417         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3418         /* Mark the FCF rediscovery pending state */
3419         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3420         spin_unlock_irq(&phba->hbalock);
3421 }
3422
3423 /**
3424  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3425  * @ptr: Map to lpfc_hba data structure pointer.
3426  *
3427  * This routine is invoked when waiting for FCF table rediscover has been
3428  * timed out. If new FCF record(s) has (have) been discovered during the
3429  * wait period, a new FCF event shall be added to the FCOE async event
3430  * list, and then worker thread shall be waked up for processing from the
3431  * worker thread context.
3432  **/
3433 void
3434 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3435 {
3436         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3437
3438         /* Don't send FCF rediscovery event if timer cancelled */
3439         spin_lock_irq(&phba->hbalock);
3440         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3441                 spin_unlock_irq(&phba->hbalock);
3442                 return;
3443         }
3444         /* Clear FCF rediscovery timer pending flag */
3445         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3446         /* FCF rediscovery event to worker thread */
3447         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3448         spin_unlock_irq(&phba->hbalock);
3449         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3450                         "2776 FCF rediscover quiescent timer expired\n");
3451         /* wake up worker thread */
3452         lpfc_worker_wake_up(phba);
3453 }
3454
3455 /**
3456  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3457  * @phba: pointer to lpfc hba data structure.
3458  * @acqe_link: pointer to the async link completion queue entry.
3459  *
3460  * This routine is to parse the SLI4 link-attention link fault code and
3461  * translate it into the base driver's read link attention mailbox command
3462  * status.
3463  *
3464  * Return: Link-attention status in terms of base driver's coding.
3465  **/
3466 static uint16_t
3467 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3468                            struct lpfc_acqe_link *acqe_link)
3469 {
3470         uint16_t latt_fault;
3471
3472         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3473         case LPFC_ASYNC_LINK_FAULT_NONE:
3474         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3475         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3476                 latt_fault = 0;
3477                 break;
3478         default:
3479                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3480                                 "0398 Invalid link fault code: x%x\n",
3481                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3482                 latt_fault = MBXERR_ERROR;
3483                 break;
3484         }
3485         return latt_fault;
3486 }
3487
3488 /**
3489  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3490  * @phba: pointer to lpfc hba data structure.
3491  * @acqe_link: pointer to the async link completion queue entry.
3492  *
3493  * This routine is to parse the SLI4 link attention type and translate it
3494  * into the base driver's link attention type coding.
3495  *
3496  * Return: Link attention type in terms of base driver's coding.
3497  **/
3498 static uint8_t
3499 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3500                           struct lpfc_acqe_link *acqe_link)
3501 {
3502         uint8_t att_type;
3503
3504         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3505         case LPFC_ASYNC_LINK_STATUS_DOWN:
3506         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3507                 att_type = LPFC_ATT_LINK_DOWN;
3508                 break;
3509         case LPFC_ASYNC_LINK_STATUS_UP:
3510                 /* Ignore physical link up events - wait for logical link up */
3511                 att_type = LPFC_ATT_RESERVED;
3512                 break;
3513         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3514                 att_type = LPFC_ATT_LINK_UP;
3515                 break;
3516         default:
3517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3518                                 "0399 Invalid link attention type: x%x\n",
3519                                 bf_get(lpfc_acqe_link_status, acqe_link));
3520                 att_type = LPFC_ATT_RESERVED;
3521                 break;
3522         }
3523         return att_type;
3524 }
3525
3526 /**
3527  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3528  * @phba: pointer to lpfc hba data structure.
3529  * @acqe_link: pointer to the async link completion queue entry.
3530  *
3531  * This routine is to parse the SLI4 link-attention link speed and translate
3532  * it into the base driver's link-attention link speed coding.
3533  *
3534  * Return: Link-attention link speed in terms of base driver's coding.
3535  **/
3536 static uint8_t
3537 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3538                                 struct lpfc_acqe_link *acqe_link)
3539 {
3540         uint8_t link_speed;
3541
3542         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3543         case LPFC_ASYNC_LINK_SPEED_ZERO:
3544         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3545         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3546                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3547                 break;
3548         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3549                 link_speed = LPFC_LINK_SPEED_1GHZ;
3550                 break;
3551         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3552                 link_speed = LPFC_LINK_SPEED_10GHZ;
3553                 break;
3554         default:
3555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3556                                 "0483 Invalid link-attention link speed: x%x\n",
3557                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3558                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3559                 break;
3560         }
3561         return link_speed;
3562 }
3563
3564 /**
3565  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3566  * @phba: pointer to lpfc hba data structure.
3567  *
3568  * This routine is to get an SLI3 FC port's link speed in Mbps.
3569  *
3570  * Return: link speed in terms of Mbps.
3571  **/
3572 uint32_t
3573 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3574 {
3575         uint32_t link_speed;
3576
3577         if (!lpfc_is_link_up(phba))
3578                 return 0;
3579
3580         switch (phba->fc_linkspeed) {
3581         case LPFC_LINK_SPEED_1GHZ:
3582                 link_speed = 1000;
3583                 break;
3584         case LPFC_LINK_SPEED_2GHZ:
3585                 link_speed = 2000;
3586                 break;
3587         case LPFC_LINK_SPEED_4GHZ:
3588                 link_speed = 4000;
3589                 break;
3590         case LPFC_LINK_SPEED_8GHZ:
3591                 link_speed = 8000;
3592                 break;
3593         case LPFC_LINK_SPEED_10GHZ:
3594                 link_speed = 10000;
3595                 break;
3596         case LPFC_LINK_SPEED_16GHZ:
3597                 link_speed = 16000;
3598                 break;
3599         default:
3600                 link_speed = 0;
3601         }
3602         return link_speed;
3603 }
3604
3605 /**
3606  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3607  * @phba: pointer to lpfc hba data structure.
3608  * @evt_code: asynchronous event code.
3609  * @speed_code: asynchronous event link speed code.
3610  *
3611  * This routine is to parse the giving SLI4 async event link speed code into
3612  * value of Mbps for the link speed.
3613  *
3614  * Return: link speed in terms of Mbps.
3615  **/
3616 static uint32_t
3617 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3618                            uint8_t speed_code)
3619 {
3620         uint32_t port_speed;
3621
3622         switch (evt_code) {
3623         case LPFC_TRAILER_CODE_LINK:
3624                 switch (speed_code) {
3625                 case LPFC_EVT_CODE_LINK_NO_LINK:
3626                         port_speed = 0;
3627                         break;
3628                 case LPFC_EVT_CODE_LINK_10_MBIT:
3629                         port_speed = 10;
3630                         break;
3631                 case LPFC_EVT_CODE_LINK_100_MBIT:
3632                         port_speed = 100;
3633                         break;
3634                 case LPFC_EVT_CODE_LINK_1_GBIT:
3635                         port_speed = 1000;
3636                         break;
3637                 case LPFC_EVT_CODE_LINK_10_GBIT:
3638                         port_speed = 10000;
3639                         break;
3640                 default:
3641                         port_speed = 0;
3642                 }
3643                 break;
3644         case LPFC_TRAILER_CODE_FC:
3645                 switch (speed_code) {
3646                 case LPFC_EVT_CODE_FC_NO_LINK:
3647                         port_speed = 0;
3648                         break;
3649                 case LPFC_EVT_CODE_FC_1_GBAUD:
3650                         port_speed = 1000;
3651                         break;
3652                 case LPFC_EVT_CODE_FC_2_GBAUD:
3653                         port_speed = 2000;
3654                         break;
3655                 case LPFC_EVT_CODE_FC_4_GBAUD:
3656                         port_speed = 4000;
3657                         break;
3658                 case LPFC_EVT_CODE_FC_8_GBAUD:
3659                         port_speed = 8000;
3660                         break;
3661                 case LPFC_EVT_CODE_FC_10_GBAUD:
3662                         port_speed = 10000;
3663                         break;
3664                 case LPFC_EVT_CODE_FC_16_GBAUD:
3665                         port_speed = 16000;
3666                         break;
3667                 default:
3668                         port_speed = 0;
3669                 }
3670                 break;
3671         default:
3672                 port_speed = 0;
3673         }
3674         return port_speed;
3675 }
3676
3677 /**
3678  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3679  * @phba: pointer to lpfc hba data structure.
3680  * @acqe_link: pointer to the async link completion queue entry.
3681  *
3682  * This routine is to handle the SLI4 asynchronous FCoE link event.
3683  **/
3684 static void
3685 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3686                          struct lpfc_acqe_link *acqe_link)
3687 {
3688         struct lpfc_dmabuf *mp;
3689         LPFC_MBOXQ_t *pmb;
3690         MAILBOX_t *mb;
3691         struct lpfc_mbx_read_top *la;
3692         uint8_t att_type;
3693         int rc;
3694
3695         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3696         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3697                 return;
3698         phba->fcoe_eventtag = acqe_link->event_tag;
3699         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3700         if (!pmb) {
3701                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3702                                 "0395 The mboxq allocation failed\n");
3703                 return;
3704         }
3705         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3706         if (!mp) {
3707                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3708                                 "0396 The lpfc_dmabuf allocation failed\n");
3709                 goto out_free_pmb;
3710         }
3711         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3712         if (!mp->virt) {
3713                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3714                                 "0397 The mbuf allocation failed\n");
3715                 goto out_free_dmabuf;
3716         }
3717
3718         /* Cleanup any outstanding ELS commands */
3719         lpfc_els_flush_all_cmd(phba);
3720
3721         /* Block ELS IOCBs until we have done process link event */
3722         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3723
3724         /* Update link event statistics */
3725         phba->sli.slistat.link_event++;
3726
3727         /* Create lpfc_handle_latt mailbox command from link ACQE */
3728         lpfc_read_topology(phba, pmb, mp);
3729         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3730         pmb->vport = phba->pport;
3731
3732         /* Keep the link status for extra SLI4 state machine reference */
3733         phba->sli4_hba.link_state.speed =
3734                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3735                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3736         phba->sli4_hba.link_state.duplex =
3737                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3738         phba->sli4_hba.link_state.status =
3739                                 bf_get(lpfc_acqe_link_status, acqe_link);
3740         phba->sli4_hba.link_state.type =
3741                                 bf_get(lpfc_acqe_link_type, acqe_link);
3742         phba->sli4_hba.link_state.number =
3743                                 bf_get(lpfc_acqe_link_number, acqe_link);
3744         phba->sli4_hba.link_state.fault =
3745                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3746         phba->sli4_hba.link_state.logical_speed =
3747                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3748
3749         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3750                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3751                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3752                         "Logical speed:%dMbps Fault:%d\n",
3753                         phba->sli4_hba.link_state.speed,
3754                         phba->sli4_hba.link_state.topology,
3755                         phba->sli4_hba.link_state.status,
3756                         phba->sli4_hba.link_state.type,
3757                         phba->sli4_hba.link_state.number,
3758                         phba->sli4_hba.link_state.logical_speed,
3759                         phba->sli4_hba.link_state.fault);
3760         /*
3761          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3762          * topology info. Note: Optional for non FC-AL ports.
3763          */
3764         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3765                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3766                 if (rc == MBX_NOT_FINISHED)
3767                         goto out_free_dmabuf;
3768                 return;
3769         }
3770         /*
3771          * For FCoE Mode: fill in all the topology information we need and call
3772          * the READ_TOPOLOGY completion routine to continue without actually
3773          * sending the READ_TOPOLOGY mailbox command to the port.
3774          */
3775         /* Parse and translate status field */
3776         mb = &pmb->u.mb;
3777         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3778
3779         /* Parse and translate link attention fields */
3780         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3781         la->eventTag = acqe_link->event_tag;
3782         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3783         bf_set(lpfc_mbx_read_top_link_spd, la,
3784                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3785
3786         /* Fake the the following irrelvant fields */
3787         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3788         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3789         bf_set(lpfc_mbx_read_top_il, la, 0);
3790         bf_set(lpfc_mbx_read_top_pb, la, 0);
3791         bf_set(lpfc_mbx_read_top_fa, la, 0);
3792         bf_set(lpfc_mbx_read_top_mm, la, 0);
3793
3794         /* Invoke the lpfc_handle_latt mailbox command callback function */
3795         lpfc_mbx_cmpl_read_topology(phba, pmb);
3796
3797         return;
3798
3799 out_free_dmabuf:
3800         kfree(mp);
3801 out_free_pmb:
3802         mempool_free(pmb, phba->mbox_mem_pool);
3803 }
3804
3805 /**
3806  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3807  * @phba: pointer to lpfc hba data structure.
3808  * @acqe_fc: pointer to the async fc completion queue entry.
3809  *
3810  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3811  * that the event was received and then issue a read_topology mailbox command so
3812  * that the rest of the driver will treat it the same as SLI3.
3813  **/
3814 static void
3815 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3816 {
3817         struct lpfc_dmabuf *mp;
3818         LPFC_MBOXQ_t *pmb;
3819         int rc;
3820
3821         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3822             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3823                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3824                                 "2895 Non FC link Event detected.(%d)\n",
3825                                 bf_get(lpfc_trailer_type, acqe_fc));
3826                 return;
3827         }
3828         /* Keep the link status for extra SLI4 state machine reference */
3829         phba->sli4_hba.link_state.speed =
3830                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3831                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3832         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3833         phba->sli4_hba.link_state.topology =
3834                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3835         phba->sli4_hba.link_state.status =
3836                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3837         phba->sli4_hba.link_state.type =
3838                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3839         phba->sli4_hba.link_state.number =
3840                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3841         phba->sli4_hba.link_state.fault =
3842                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3843         phba->sli4_hba.link_state.logical_speed =
3844                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3845         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3846                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3847                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3848                         "%dMbps Fault:%d\n",
3849                         phba->sli4_hba.link_state.speed,
3850                         phba->sli4_hba.link_state.topology,
3851                         phba->sli4_hba.link_state.status,
3852                         phba->sli4_hba.link_state.type,
3853                         phba->sli4_hba.link_state.number,
3854                         phba->sli4_hba.link_state.logical_speed,
3855                         phba->sli4_hba.link_state.fault);
3856         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3857         if (!pmb) {
3858                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3859                                 "2897 The mboxq allocation failed\n");
3860                 return;
3861         }
3862         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3863         if (!mp) {
3864                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3865                                 "2898 The lpfc_dmabuf allocation failed\n");
3866                 goto out_free_pmb;
3867         }
3868         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3869         if (!mp->virt) {
3870                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871                                 "2899 The mbuf allocation failed\n");
3872                 goto out_free_dmabuf;
3873         }
3874
3875         /* Cleanup any outstanding ELS commands */
3876         lpfc_els_flush_all_cmd(phba);
3877
3878         /* Block ELS IOCBs until we have done process link event */
3879         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3880
3881         /* Update link event statistics */
3882         phba->sli.slistat.link_event++;
3883
3884         /* Create lpfc_handle_latt mailbox command from link ACQE */
3885         lpfc_read_topology(phba, pmb, mp);
3886         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3887         pmb->vport = phba->pport;
3888
3889         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3890         if (rc == MBX_NOT_FINISHED)
3891                 goto out_free_dmabuf;
3892         return;
3893
3894 out_free_dmabuf:
3895         kfree(mp);
3896 out_free_pmb:
3897         mempool_free(pmb, phba->mbox_mem_pool);
3898 }
3899
3900 /**
3901  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3902  * @phba: pointer to lpfc hba data structure.
3903  * @acqe_fc: pointer to the async SLI completion queue entry.
3904  *
3905  * This routine is to handle the SLI4 asynchronous SLI events.
3906  **/
3907 static void
3908 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3909 {
3910         char port_name;
3911         char message[128];
3912         uint8_t status;
3913         struct lpfc_acqe_misconfigured_event *misconfigured;
3914
3915         /* special case misconfigured event as it contains data for all ports */
3916         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3917                  LPFC_SLI_INTF_IF_TYPE_2) ||
3918                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3919                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3920                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3921                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3922                                 "x%08x SLI Event Type:%d\n",
3923                                 acqe_sli->event_data1, acqe_sli->event_data2,
3924                                 bf_get(lpfc_trailer_type, acqe_sli));
3925                 return;
3926         }
3927
3928         port_name = phba->Port[0];
3929         if (port_name == 0x00)
3930                 port_name = '?'; /* get port name is empty */
3931
3932         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3933                                         &acqe_sli->event_data1;
3934
3935         /* fetch the status for this port */
3936         switch (phba->sli4_hba.lnk_info.lnk_no) {
3937         case LPFC_LINK_NUMBER_0:
3938                 status = bf_get(lpfc_sli_misconfigured_port0,
3939                                         &misconfigured->theEvent);
3940                 break;
3941         case LPFC_LINK_NUMBER_1:
3942                 status = bf_get(lpfc_sli_misconfigured_port1,
3943                                         &misconfigured->theEvent);
3944                 break;
3945         case LPFC_LINK_NUMBER_2:
3946                 status = bf_get(lpfc_sli_misconfigured_port2,
3947                                         &misconfigured->theEvent);
3948                 break;
3949         case LPFC_LINK_NUMBER_3:
3950                 status = bf_get(lpfc_sli_misconfigured_port3,
3951                                         &misconfigured->theEvent);
3952                 break;
3953         default:
3954                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3955                 break;
3956         }
3957
3958         switch (status) {
3959         case LPFC_SLI_EVENT_STATUS_VALID:
3960                 return; /* no message if the sfp is okay */
3961         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3962                 sprintf(message, "Optics faulted/incorrectly installed/not " \
3963                                 "installed - Reseat optics, if issue not "
3964                                 "resolved, replace.");
3965                 break;
3966         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3967                 sprintf(message,
3968                         "Optics of two types installed - Remove one optic or " \
3969                         "install matching pair of optics.");
3970                 break;
3971         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3972                 sprintf(message, "Incompatible optics - Replace with " \
3973                                 "compatible optics for card to function.");
3974                 break;
3975         default:
3976                 /* firmware is reporting a status we don't know about */
3977                 sprintf(message, "Unknown event status x%02x", status);
3978                 break;
3979         }
3980
3981         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3982                         "3176 Misconfigured Physical Port - "
3983                         "Port Name %c %s\n", port_name, message);
3984 }
3985
3986 /**
3987  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3988  * @vport: pointer to vport data structure.
3989  *
3990  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3991  * response to a CVL event.
3992  *
3993  * Return the pointer to the ndlp with the vport if successful, otherwise
3994  * return NULL.
3995  **/
3996 static struct lpfc_nodelist *
3997 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3998 {
3999         struct lpfc_nodelist *ndlp;
4000         struct Scsi_Host *shost;
4001         struct lpfc_hba *phba;
4002
4003         if (!vport)
4004                 return NULL;
4005         phba = vport->phba;
4006         if (!phba)
4007                 return NULL;
4008         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4009         if (!ndlp) {
4010                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4011                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4012                 if (!ndlp)
4013                         return 0;
4014                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4015                 /* Set the node type */
4016                 ndlp->nlp_type |= NLP_FABRIC;
4017                 /* Put ndlp onto node list */
4018                 lpfc_enqueue_node(vport, ndlp);
4019         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4020                 /* re-setup ndlp without removing from node list */
4021                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4022                 if (!ndlp)
4023                         return 0;
4024         }
4025         if ((phba->pport->port_state < LPFC_FLOGI) &&
4026                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4027                 return NULL;
4028         /* If virtual link is not yet instantiated ignore CVL */
4029         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4030                 && (vport->port_state != LPFC_VPORT_FAILED))
4031                 return NULL;
4032         shost = lpfc_shost_from_vport(vport);
4033         if (!shost)
4034                 return NULL;
4035         lpfc_linkdown_port(vport);
4036         lpfc_cleanup_pending_mbox(vport);
4037         spin_lock_irq(shost->host_lock);
4038         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4039         spin_unlock_irq(shost->host_lock);
4040
4041         return ndlp;
4042 }
4043
4044 /**
4045  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4046  * @vport: pointer to lpfc hba data structure.
4047  *
4048  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4049  * response to a FCF dead event.
4050  **/
4051 static void
4052 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4053 {
4054         struct lpfc_vport **vports;
4055         int i;
4056
4057         vports = lpfc_create_vport_work_array(phba);
4058         if (vports)
4059                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4060                         lpfc_sli4_perform_vport_cvl(vports[i]);
4061         lpfc_destroy_vport_work_array(phba, vports);
4062 }
4063
4064 /**
4065  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4066  * @phba: pointer to lpfc hba data structure.
4067  * @acqe_link: pointer to the async fcoe completion queue entry.
4068  *
4069  * This routine is to handle the SLI4 asynchronous fcoe event.
4070  **/
4071 static void
4072 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4073                         struct lpfc_acqe_fip *acqe_fip)
4074 {
4075         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4076         int rc;
4077         struct lpfc_vport *vport;
4078         struct lpfc_nodelist *ndlp;
4079         struct Scsi_Host  *shost;
4080         int active_vlink_present;
4081         struct lpfc_vport **vports;
4082         int i;
4083
4084         phba->fc_eventTag = acqe_fip->event_tag;
4085         phba->fcoe_eventtag = acqe_fip->event_tag;
4086         switch (event_type) {
4087         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4088         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4089                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4090                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4091                                         LOG_DISCOVERY,
4092                                         "2546 New FCF event, evt_tag:x%x, "
4093                                         "index:x%x\n",
4094                                         acqe_fip->event_tag,
4095                                         acqe_fip->index);
4096                 else
4097                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4098                                         LOG_DISCOVERY,
4099                                         "2788 FCF param modified event, "
4100                                         "evt_tag:x%x, index:x%x\n",
4101                                         acqe_fip->event_tag,
4102                                         acqe_fip->index);
4103                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4104                         /*
4105                          * During period of FCF discovery, read the FCF
4106                          * table record indexed by the event to update
4107                          * FCF roundrobin failover eligible FCF bmask.
4108                          */
4109                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4110                                         LOG_DISCOVERY,
4111                                         "2779 Read FCF (x%x) for updating "
4112                                         "roundrobin FCF failover bmask\n",
4113                                         acqe_fip->index);
4114                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4115                 }
4116
4117                 /* If the FCF discovery is in progress, do nothing. */
4118                 spin_lock_irq(&phba->hbalock);
4119                 if (phba->hba_flag & FCF_TS_INPROG) {
4120                         spin_unlock_irq(&phba->hbalock);
4121                         break;
4122                 }
4123                 /* If fast FCF failover rescan event is pending, do nothing */
4124                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4125                         spin_unlock_irq(&phba->hbalock);
4126                         break;
4127                 }
4128
4129                 /* If the FCF has been in discovered state, do nothing. */
4130                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4131                         spin_unlock_irq(&phba->hbalock);
4132                         break;
4133                 }
4134                 spin_unlock_irq(&phba->hbalock);
4135
4136                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4137                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4138                                 "2770 Start FCF table scan per async FCF "
4139                                 "event, evt_tag:x%x, index:x%x\n",
4140                                 acqe_fip->event_tag, acqe_fip->index);
4141                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4142                                                      LPFC_FCOE_FCF_GET_FIRST);
4143                 if (rc)
4144                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4145                                         "2547 Issue FCF scan read FCF mailbox "
4146                                         "command failed (x%x)\n", rc);
4147                 break;
4148
4149         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4150                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4151                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4152                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4153                         acqe_fip->event_tag);
4154                 break;
4155
4156         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4157                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4158                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4159                         "2549 FCF (x%x) disconnected from network, "
4160                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4161                 /*
4162                  * If we are in the middle of FCF failover process, clear
4163                  * the corresponding FCF bit in the roundrobin bitmap.
4164                  */
4165                 spin_lock_irq(&phba->hbalock);
4166                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4167                         spin_unlock_irq(&phba->hbalock);
4168                         /* Update FLOGI FCF failover eligible FCF bmask */
4169                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4170                         break;
4171                 }
4172                 spin_unlock_irq(&phba->hbalock);
4173
4174                 /* If the event is not for currently used fcf do nothing */
4175                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4176                         break;
4177
4178                 /*
4179                  * Otherwise, request the port to rediscover the entire FCF
4180                  * table for a fast recovery from case that the current FCF
4181                  * is no longer valid as we are not in the middle of FCF
4182                  * failover process already.
4183                  */
4184                 spin_lock_irq(&phba->hbalock);
4185                 /* Mark the fast failover process in progress */
4186                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4187                 spin_unlock_irq(&phba->hbalock);
4188
4189                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4190                                 "2771 Start FCF fast failover process due to "
4191                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4192                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4193                 rc = lpfc_sli4_redisc_fcf_table(phba);
4194                 if (rc) {
4195                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4196                                         LOG_DISCOVERY,
4197                                         "2772 Issue FCF rediscover mabilbox "
4198                                         "command failed, fail through to FCF "
4199                                         "dead event\n");
4200                         spin_lock_irq(&phba->hbalock);
4201                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4202                         spin_unlock_irq(&phba->hbalock);
4203                         /*
4204                          * Last resort will fail over by treating this
4205                          * as a link down to FCF registration.
4206                          */
4207                         lpfc_sli4_fcf_dead_failthrough(phba);
4208                 } else {
4209                         /* Reset FCF roundrobin bmask for new discovery */
4210                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4211                         /*
4212                          * Handling fast FCF failover to a DEAD FCF event is
4213                          * considered equalivant to receiving CVL to all vports.
4214                          */
4215                         lpfc_sli4_perform_all_vport_cvl(phba);
4216                 }
4217                 break;
4218         case LPFC_FIP_EVENT_TYPE_CVL:
4219                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4220                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4221                         "2718 Clear Virtual Link Received for VPI 0x%x"
4222                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4223
4224                 vport = lpfc_find_vport_by_vpid(phba,
4225                                                 acqe_fip->index);
4226                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4227                 if (!ndlp)
4228                         break;
4229                 active_vlink_present = 0;
4230
4231                 vports = lpfc_create_vport_work_array(phba);
4232                 if (vports) {
4233                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4234                                         i++) {
4235                                 if ((!(vports[i]->fc_flag &
4236                                         FC_VPORT_CVL_RCVD)) &&
4237                                         (vports[i]->port_state > LPFC_FDISC)) {
4238                                         active_vlink_present = 1;
4239                                         break;
4240                                 }
4241                         }
4242                         lpfc_destroy_vport_work_array(phba, vports);
4243                 }
4244
4245                 if (active_vlink_present) {
4246                         /*
4247                          * If there are other active VLinks present,
4248                          * re-instantiate the Vlink using FDISC.
4249                          */
4250                         mod_timer(&ndlp->nlp_delayfunc,
4251                                   jiffies + msecs_to_jiffies(1000));
4252                         shost = lpfc_shost_from_vport(vport);
4253                         spin_lock_irq(shost->host_lock);
4254                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4255                         spin_unlock_irq(shost->host_lock);
4256                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4257                         vport->port_state = LPFC_FDISC;
4258                 } else {
4259                         /*
4260                          * Otherwise, we request port to rediscover
4261                          * the entire FCF table for a fast recovery
4262                          * from possible case that the current FCF
4263                          * is no longer valid if we are not already
4264                          * in the FCF failover process.
4265                          */
4266                         spin_lock_irq(&phba->hbalock);
4267                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4268                                 spin_unlock_irq(&phba->hbalock);
4269                                 break;
4270                         }
4271                         /* Mark the fast failover process in progress */
4272                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4273                         spin_unlock_irq(&phba->hbalock);
4274                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4275                                         LOG_DISCOVERY,
4276                                         "2773 Start FCF failover per CVL, "
4277                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4278                         rc = lpfc_sli4_redisc_fcf_table(phba);
4279                         if (rc) {
4280                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4281                                                 LOG_DISCOVERY,
4282                                                 "2774 Issue FCF rediscover "
4283                                                 "mabilbox command failed, "
4284                                                 "through to CVL event\n");
4285                                 spin_lock_irq(&phba->hbalock);
4286                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4287                                 spin_unlock_irq(&phba->hbalock);
4288                                 /*
4289                                  * Last resort will be re-try on the
4290                                  * the current registered FCF entry.
4291                                  */
4292                                 lpfc_retry_pport_discovery(phba);
4293                         } else
4294                                 /*
4295                                  * Reset FCF roundrobin bmask for new
4296                                  * discovery.
4297                                  */
4298                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4299                 }
4300                 break;
4301         default:
4302                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4303                         "0288 Unknown FCoE event type 0x%x event tag "
4304                         "0x%x\n", event_type, acqe_fip->event_tag);
4305                 break;
4306         }
4307 }
4308
4309 /**
4310  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4311  * @phba: pointer to lpfc hba data structure.
4312  * @acqe_link: pointer to the async dcbx completion queue entry.
4313  *
4314  * This routine is to handle the SLI4 asynchronous dcbx event.
4315  **/
4316 static void
4317 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4318                          struct lpfc_acqe_dcbx *acqe_dcbx)
4319 {
4320         phba->fc_eventTag = acqe_dcbx->event_tag;
4321         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4322                         "0290 The SLI4 DCBX asynchronous event is not "
4323                         "handled yet\n");
4324 }
4325
4326 /**
4327  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4328  * @phba: pointer to lpfc hba data structure.
4329  * @acqe_link: pointer to the async grp5 completion queue entry.
4330  *
4331  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4332  * is an asynchronous notified of a logical link speed change.  The Port
4333  * reports the logical link speed in units of 10Mbps.
4334  **/
4335 static void
4336 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4337                          struct lpfc_acqe_grp5 *acqe_grp5)
4338 {
4339         uint16_t prev_ll_spd;
4340
4341         phba->fc_eventTag = acqe_grp5->event_tag;
4342         phba->fcoe_eventtag = acqe_grp5->event_tag;
4343         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4344         phba->sli4_hba.link_state.logical_speed =
4345                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4346         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4347                         "2789 GRP5 Async Event: Updating logical link speed "
4348                         "from %dMbps to %dMbps\n", prev_ll_spd,
4349                         phba->sli4_hba.link_state.logical_speed);
4350 }
4351
4352 /**
4353  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4354  * @phba: pointer to lpfc hba data structure.
4355  *
4356  * This routine is invoked by the worker thread to process all the pending
4357  * SLI4 asynchronous events.
4358  **/
4359 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4360 {
4361         struct lpfc_cq_event *cq_event;
4362
4363         /* First, declare the async event has been handled */
4364         spin_lock_irq(&phba->hbalock);
4365         phba->hba_flag &= ~ASYNC_EVENT;
4366         spin_unlock_irq(&phba->hbalock);
4367         /* Now, handle all the async events */
4368         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4369                 /* Get the first event from the head of the event queue */
4370                 spin_lock_irq(&phba->hbalock);
4371                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4372                                  cq_event, struct lpfc_cq_event, list);
4373                 spin_unlock_irq(&phba->hbalock);
4374                 /* Process the asynchronous event */
4375                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4376                 case LPFC_TRAILER_CODE_LINK:
4377                         lpfc_sli4_async_link_evt(phba,
4378                                                  &cq_event->cqe.acqe_link);
4379                         break;
4380                 case LPFC_TRAILER_CODE_FCOE:
4381                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4382                         break;
4383                 case LPFC_TRAILER_CODE_DCBX:
4384                         lpfc_sli4_async_dcbx_evt(phba,
4385                                                  &cq_event->cqe.acqe_dcbx);
4386                         break;
4387                 case LPFC_TRAILER_CODE_GRP5:
4388                         lpfc_sli4_async_grp5_evt(phba,
4389                                                  &cq_event->cqe.acqe_grp5);
4390                         break;
4391                 case LPFC_TRAILER_CODE_FC:
4392                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4393                         break;
4394                 case LPFC_TRAILER_CODE_SLI:
4395                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4396                         break;
4397                 default:
4398                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4399                                         "1804 Invalid asynchrous event code: "
4400                                         "x%x\n", bf_get(lpfc_trailer_code,
4401                                         &cq_event->cqe.mcqe_cmpl));
4402                         break;
4403                 }
4404                 /* Free the completion event processed to the free pool */
4405                 lpfc_sli4_cq_event_release(phba, cq_event);
4406         }
4407 }
4408
4409 /**
4410  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4411  * @phba: pointer to lpfc hba data structure.
4412  *
4413  * This routine is invoked by the worker thread to process FCF table
4414  * rediscovery pending completion event.
4415  **/
4416 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4417 {
4418         int rc;
4419
4420         spin_lock_irq(&phba->hbalock);
4421         /* Clear FCF rediscovery timeout event */
4422         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4423         /* Clear driver fast failover FCF record flag */
4424         phba->fcf.failover_rec.flag = 0;
4425         /* Set state for FCF fast failover */
4426         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4427         spin_unlock_irq(&phba->hbalock);
4428
4429         /* Scan FCF table from the first entry to re-discover SAN */
4430         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4431                         "2777 Start post-quiescent FCF table scan\n");
4432         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4433         if (rc)
4434                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4435                                 "2747 Issue FCF scan read FCF mailbox "
4436                                 "command failed 0x%x\n", rc);
4437 }
4438
4439 /**
4440  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4441  * @phba: pointer to lpfc hba data structure.
4442  * @dev_grp: The HBA PCI-Device group number.
4443  *
4444  * This routine is invoked to set up the per HBA PCI-Device group function
4445  * API jump table entries.
4446  *
4447  * Return: 0 if success, otherwise -ENODEV
4448  **/
4449 int
4450 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4451 {
4452         int rc;
4453
4454         /* Set up lpfc PCI-device group */
4455         phba->pci_dev_grp = dev_grp;
4456
4457         /* The LPFC_PCI_DEV_OC uses SLI4 */
4458         if (dev_grp == LPFC_PCI_DEV_OC)
4459                 phba->sli_rev = LPFC_SLI_REV4;
4460
4461         /* Set up device INIT API function jump table */
4462         rc = lpfc_init_api_table_setup(phba, dev_grp);
4463         if (rc)
4464                 return -ENODEV;
4465         /* Set up SCSI API function jump table */
4466         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4467         if (rc)
4468                 return -ENODEV;
4469         /* Set up SLI API function jump table */
4470         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4471         if (rc)
4472                 return -ENODEV;
4473         /* Set up MBOX API function jump table */
4474         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4475         if (rc)
4476                 return -ENODEV;
4477
4478         return 0;
4479 }
4480
4481 /**
4482  * lpfc_log_intr_mode - Log the active interrupt mode
4483  * @phba: pointer to lpfc hba data structure.
4484  * @intr_mode: active interrupt mode adopted.
4485  *
4486  * This routine it invoked to log the currently used active interrupt mode
4487  * to the device.
4488  **/
4489 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4490 {
4491         switch (intr_mode) {
4492         case 0:
4493                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4494                                 "0470 Enable INTx interrupt mode.\n");
4495                 break;
4496         case 1:
4497                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4498                                 "0481 Enabled MSI interrupt mode.\n");
4499                 break;
4500         case 2:
4501                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4502                                 "0480 Enabled MSI-X interrupt mode.\n");
4503                 break;
4504         default:
4505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4506                                 "0482 Illegal interrupt mode.\n");
4507                 break;
4508         }
4509         return;
4510 }
4511
4512 /**
4513  * lpfc_enable_pci_dev - Enable a generic PCI device.
4514  * @phba: pointer to lpfc hba data structure.
4515  *
4516  * This routine is invoked to enable the PCI device that is common to all
4517  * PCI devices.
4518  *
4519  * Return codes
4520  *      0 - successful
4521  *      other values - error
4522  **/
4523 static int
4524 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4525 {
4526         struct pci_dev *pdev;
4527         int bars = 0;
4528
4529         /* Obtain PCI device reference */
4530         if (!phba->pcidev)
4531                 goto out_error;
4532         else
4533                 pdev = phba->pcidev;
4534         /* Select PCI BARs */
4535         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4536         /* Enable PCI device */
4537         if (pci_enable_device_mem(pdev))
4538                 goto out_error;
4539         /* Request PCI resource for the device */
4540         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4541                 goto out_disable_device;
4542         /* Set up device as PCI master and save state for EEH */
4543         pci_set_master(pdev);
4544         pci_try_set_mwi(pdev);
4545         pci_save_state(pdev);
4546
4547         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4548         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4549                 pdev->needs_freset = 1;
4550
4551         return 0;
4552
4553 out_disable_device:
4554         pci_disable_device(pdev);
4555 out_error:
4556         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4557                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4558         return -ENODEV;
4559 }
4560
4561 /**
4562  * lpfc_disable_pci_dev - Disable a generic PCI device.
4563  * @phba: pointer to lpfc hba data structure.
4564  *
4565  * This routine is invoked to disable the PCI device that is common to all
4566  * PCI devices.
4567  **/
4568 static void
4569 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4570 {
4571         struct pci_dev *pdev;
4572         int bars;
4573
4574         /* Obtain PCI device reference */
4575         if (!phba->pcidev)
4576                 return;
4577         else
4578                 pdev = phba->pcidev;
4579         /* Select PCI BARs */
4580         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4581         /* Release PCI resource and disable PCI device */
4582         pci_release_selected_regions(pdev, bars);
4583         pci_disable_device(pdev);
4584
4585         return;
4586 }
4587
4588 /**
4589  * lpfc_reset_hba - Reset a hba
4590  * @phba: pointer to lpfc hba data structure.
4591  *
4592  * This routine is invoked to reset a hba device. It brings the HBA
4593  * offline, performs a board restart, and then brings the board back
4594  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4595  * on outstanding mailbox commands.
4596  **/
4597 void
4598 lpfc_reset_hba(struct lpfc_hba *phba)
4599 {
4600         /* If resets are disabled then set error state and return. */
4601         if (!phba->cfg_enable_hba_reset) {
4602                 phba->link_state = LPFC_HBA_ERROR;
4603                 return;
4604         }
4605         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4606         lpfc_offline(phba);
4607         lpfc_sli_brdrestart(phba);
4608         lpfc_online(phba);
4609         lpfc_unblock_mgmt_io(phba);
4610 }
4611
4612 /**
4613  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4614  * @phba: pointer to lpfc hba data structure.
4615  *
4616  * This function enables the PCI SR-IOV virtual functions to a physical
4617  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4618  * enable the number of virtual functions to the physical function. As
4619  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4620  * API call does not considered as an error condition for most of the device.
4621  **/
4622 uint16_t
4623 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4624 {
4625         struct pci_dev *pdev = phba->pcidev;
4626         uint16_t nr_virtfn;
4627         int pos;
4628
4629         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4630         if (pos == 0)
4631                 return 0;
4632
4633         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4634         return nr_virtfn;
4635 }
4636
4637 /**
4638  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4639  * @phba: pointer to lpfc hba data structure.
4640  * @nr_vfn: number of virtual functions to be enabled.
4641  *
4642  * This function enables the PCI SR-IOV virtual functions to a physical
4643  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4644  * enable the number of virtual functions to the physical function. As
4645  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4646  * API call does not considered as an error condition for most of the device.
4647  **/
4648 int
4649 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4650 {
4651         struct pci_dev *pdev = phba->pcidev;
4652         uint16_t max_nr_vfn;
4653         int rc;
4654
4655         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4656         if (nr_vfn > max_nr_vfn) {
4657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4658                                 "3057 Requested vfs (%d) greater than "
4659                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4660                 return -EINVAL;
4661         }
4662
4663         rc = pci_enable_sriov(pdev, nr_vfn);
4664         if (rc) {
4665                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4666                                 "2806 Failed to enable sriov on this device "
4667                                 "with vfn number nr_vf:%d, rc:%d\n",
4668                                 nr_vfn, rc);
4669         } else
4670                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4671                                 "2807 Successful enable sriov on this device "
4672                                 "with vfn number nr_vf:%d\n", nr_vfn);
4673         return rc;
4674 }
4675
4676 /**
4677  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4678  * @phba: pointer to lpfc hba data structure.
4679  *
4680  * This routine is invoked to set up the driver internal resources specific to
4681  * support the SLI-3 HBA device it attached to.
4682  *
4683  * Return codes
4684  *      0 - successful
4685  *      other values - error
4686  **/
4687 static int
4688 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4689 {
4690         struct lpfc_sli *psli;
4691         int rc;
4692
4693         /*
4694          * Initialize timers used by driver
4695          */
4696
4697         /* Heartbeat timer */
4698         init_timer(&phba->hb_tmofunc);
4699         phba->hb_tmofunc.function = lpfc_hb_timeout;
4700         phba->hb_tmofunc.data = (unsigned long)phba;
4701
4702         psli = &phba->sli;
4703         /* MBOX heartbeat timer */
4704         init_timer(&psli->mbox_tmo);
4705         psli->mbox_tmo.function = lpfc_mbox_timeout;
4706         psli->mbox_tmo.data = (unsigned long) phba;
4707         /* FCP polling mode timer */
4708         init_timer(&phba->fcp_poll_timer);
4709         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4710         phba->fcp_poll_timer.data = (unsigned long) phba;
4711         /* Fabric block timer */
4712         init_timer(&phba->fabric_block_timer);
4713         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4714         phba->fabric_block_timer.data = (unsigned long) phba;
4715         /* EA polling mode timer */
4716         init_timer(&phba->eratt_poll);
4717         phba->eratt_poll.function = lpfc_poll_eratt;
4718         phba->eratt_poll.data = (unsigned long) phba;
4719
4720         /* Host attention work mask setup */
4721         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4722         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4723
4724         /* Get all the module params for configuring this host */
4725         lpfc_get_cfgparam(phba);
4726         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4727                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4728                 /* check for menlo minimum sg count */
4729                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4730                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4731         }
4732
4733         if (!phba->sli.ring)
4734                 phba->sli.ring = (struct lpfc_sli_ring *)
4735                         kzalloc(LPFC_SLI3_MAX_RING *
4736                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4737         if (!phba->sli.ring)
4738                 return -ENOMEM;
4739
4740         /*
4741          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4742          * used to create the sg_dma_buf_pool must be dynamically calculated.
4743          */
4744
4745         /* Initialize the host templates the configured values. */
4746         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4747         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4748
4749         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4750         if (phba->cfg_enable_bg) {
4751                 /*
4752                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4753                  * the FCP rsp, and a BDE for each. Sice we have no control
4754                  * over how many protection data segments the SCSI Layer
4755                  * will hand us (ie: there could be one for every block
4756                  * in the IO), we just allocate enough BDEs to accomidate
4757                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4758                  * minimize the risk of running out.
4759                  */
4760                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4761                         sizeof(struct fcp_rsp) +
4762                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4763
4764                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4765                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4766
4767                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4768                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4769         } else {
4770                 /*
4771                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4772                  * the FCP rsp, a BDE for each, and a BDE for up to
4773                  * cfg_sg_seg_cnt data segments.
4774                  */
4775                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4776                         sizeof(struct fcp_rsp) +
4777                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4778
4779                 /* Total BDEs in BPL for scsi_sg_list */
4780                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4781         }
4782
4783         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4784                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4785                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4786                         phba->cfg_total_seg_cnt);
4787
4788         phba->max_vpi = LPFC_MAX_VPI;
4789         /* This will be set to correct value after config_port mbox */
4790         phba->max_vports = 0;
4791
4792         /*
4793          * Initialize the SLI Layer to run with lpfc HBAs.
4794          */
4795         lpfc_sli_setup(phba);
4796         lpfc_sli_queue_setup(phba);
4797
4798         /* Allocate device driver memory */
4799         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4800                 return -ENOMEM;
4801
4802         /*
4803          * Enable sr-iov virtual functions if supported and configured
4804          * through the module parameter.
4805          */
4806         if (phba->cfg_sriov_nr_virtfn > 0) {
4807                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4808                                                  phba->cfg_sriov_nr_virtfn);
4809                 if (rc) {
4810                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4811                                         "2808 Requested number of SR-IOV "
4812                                         "virtual functions (%d) is not "
4813                                         "supported\n",
4814                                         phba->cfg_sriov_nr_virtfn);
4815                         phba->cfg_sriov_nr_virtfn = 0;
4816                 }
4817         }
4818
4819         return 0;
4820 }
4821
4822 /**
4823  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4824  * @phba: pointer to lpfc hba data structure.
4825  *
4826  * This routine is invoked to unset the driver internal resources set up
4827  * specific for supporting the SLI-3 HBA device it attached to.
4828  **/
4829 static void
4830 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4831 {
4832         /* Free device driver memory allocated */
4833         lpfc_mem_free_all(phba);
4834
4835         return;
4836 }
4837
4838 /**
4839  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4840  * @phba: pointer to lpfc hba data structure.
4841  *
4842  * This routine is invoked to set up the driver internal resources specific to
4843  * support the SLI-4 HBA device it attached to.
4844  *
4845  * Return codes
4846  *      0 - successful
4847  *      other values - error
4848  **/
4849 static int
4850 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4851 {
4852         struct lpfc_vector_map_info *cpup;
4853         struct lpfc_sli *psli;
4854         LPFC_MBOXQ_t *mboxq;
4855         int rc, i, hbq_count, max_buf_size;
4856         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4857         struct lpfc_mqe *mqe;
4858         int longs;
4859
4860         /* Get all the module params for configuring this host */
4861         lpfc_get_cfgparam(phba);
4862
4863         /* Before proceed, wait for POST done and device ready */
4864         rc = lpfc_sli4_post_status_check(phba);
4865         if (rc)
4866                 return -ENODEV;
4867
4868         /*
4869          * Initialize timers used by driver
4870          */
4871
4872         /* Heartbeat timer */
4873         init_timer(&phba->hb_tmofunc);
4874         phba->hb_tmofunc.function = lpfc_hb_timeout;
4875         phba->hb_tmofunc.data = (unsigned long)phba;
4876         init_timer(&phba->rrq_tmr);
4877         phba->rrq_tmr.function = lpfc_rrq_timeout;
4878         phba->rrq_tmr.data = (unsigned long)phba;
4879
4880         psli = &phba->sli;
4881         /* MBOX heartbeat timer */
4882         init_timer(&psli->mbox_tmo);
4883         psli->mbox_tmo.function = lpfc_mbox_timeout;
4884         psli->mbox_tmo.data = (unsigned long) phba;
4885         /* Fabric block timer */
4886         init_timer(&phba->fabric_block_timer);
4887         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4888         phba->fabric_block_timer.data = (unsigned long) phba;
4889         /* EA polling mode timer */
4890         init_timer(&phba->eratt_poll);
4891         phba->eratt_poll.function = lpfc_poll_eratt;
4892         phba->eratt_poll.data = (unsigned long) phba;
4893         /* FCF rediscover timer */
4894         init_timer(&phba->fcf.redisc_wait);
4895         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4896         phba->fcf.redisc_wait.data = (unsigned long)phba;
4897
4898         /*
4899          * Control structure for handling external multi-buffer mailbox
4900          * command pass-through.
4901          */
4902         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4903                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4904         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4905
4906         phba->max_vpi = LPFC_MAX_VPI;
4907
4908         /* This will be set to correct value after the read_config mbox */
4909         phba->max_vports = 0;
4910
4911         /* Program the default value of vlan_id and fc_map */
4912         phba->valid_vlan = 0;
4913         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4914         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4915         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4916
4917         /*
4918          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4919          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4920          */
4921         if (!phba->sli.ring)
4922                 phba->sli.ring = kzalloc(
4923                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4924                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4925         if (!phba->sli.ring)
4926                 return -ENOMEM;
4927
4928         /*
4929          * It doesn't matter what family our adapter is in, we are
4930          * limited to 2 Pages, 512 SGEs, for our SGL.
4931          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4932          */
4933         max_buf_size = (2 * SLI4_PAGE_SIZE);
4934         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4935                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
4936
4937         /*
4938          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4939          * used to create the sg_dma_buf_pool must be dynamically calculated.
4940          */
4941
4942         if (phba->cfg_enable_bg) {
4943                 /*
4944                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4945                  * the FCP rsp, and a SGE for each. Sice we have no control
4946                  * over how many protection data segments the SCSI Layer
4947                  * will hand us (ie: there could be one for every block
4948                  * in the IO), we just allocate enough SGEs to accomidate
4949                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4950                  * minimize the risk of running out.
4951                  */
4952                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4953                         sizeof(struct fcp_rsp) + max_buf_size;
4954
4955                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4956                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4957
4958                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4959                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4960         } else {
4961                 /*
4962                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4963                  * the FCP rsp, a SGE for each, and a SGE for up to
4964                  * cfg_sg_seg_cnt data segments.
4965                  */
4966                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4967                         sizeof(struct fcp_rsp) +
4968                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4969
4970                 /* Total SGEs for scsi_sg_list */
4971                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4972                 /*
4973                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4974                  * to post 1 page for the SGL.
4975                  */
4976         }
4977
4978         /* Initialize the host templates with the updated values. */
4979         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4980         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4981
4982         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
4983                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
4984         else
4985                 phba->cfg_sg_dma_buf_size =
4986                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
4987
4988         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4989                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
4990                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4991                         phba->cfg_total_seg_cnt);
4992
4993         /* Initialize buffer queue management fields */
4994         hbq_count = lpfc_sli_hbq_count();
4995         for (i = 0; i < hbq_count; ++i)
4996                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4997         INIT_LIST_HEAD(&phba->rb_pend_list);
4998         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4999         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5000
5001         /*
5002          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5003          */
5004         /* Initialize the Abort scsi buffer list used by driver */
5005         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5006         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5007         /* This abort list used by worker thread */
5008         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5009
5010         /*
5011          * Initialize driver internal slow-path work queues
5012          */
5013
5014         /* Driver internel slow-path CQ Event pool */
5015         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5016         /* Response IOCB work queue list */
5017         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5018         /* Asynchronous event CQ Event work queue list */
5019         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5020         /* Fast-path XRI aborted CQ Event work queue list */
5021         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5022         /* Slow-path XRI aborted CQ Event work queue list */
5023         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5024         /* Receive queue CQ Event work queue list */
5025         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5026
5027         /* Initialize extent block lists. */
5028         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5029         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5030         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5031         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5032
5033         /* Initialize the driver internal SLI layer lists. */
5034         lpfc_sli_setup(phba);
5035         lpfc_sli_queue_setup(phba);
5036
5037         /* Allocate device driver memory */
5038         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5039         if (rc)
5040                 return -ENOMEM;
5041
5042         /* IF Type 2 ports get initialized now. */
5043         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5044             LPFC_SLI_INTF_IF_TYPE_2) {
5045                 rc = lpfc_pci_function_reset(phba);
5046                 if (unlikely(rc))
5047                         return -ENODEV;
5048         }
5049
5050         /* Create the bootstrap mailbox command */
5051         rc = lpfc_create_bootstrap_mbox(phba);
5052         if (unlikely(rc))
5053                 goto out_free_mem;
5054
5055         /* Set up the host's endian order with the device. */
5056         rc = lpfc_setup_endian_order(phba);
5057         if (unlikely(rc))
5058                 goto out_free_bsmbx;
5059
5060         /* Set up the hba's configuration parameters. */
5061         rc = lpfc_sli4_read_config(phba);
5062         if (unlikely(rc))
5063                 goto out_free_bsmbx;
5064
5065         /* IF Type 0 ports get initialized now. */
5066         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5067             LPFC_SLI_INTF_IF_TYPE_0) {
5068                 rc = lpfc_pci_function_reset(phba);
5069                 if (unlikely(rc))
5070                         goto out_free_bsmbx;
5071         }
5072
5073         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5074                                                        GFP_KERNEL);
5075         if (!mboxq) {
5076                 rc = -ENOMEM;
5077                 goto out_free_bsmbx;
5078         }
5079
5080         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5081         lpfc_supported_pages(mboxq);
5082         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5083         if (!rc) {
5084                 mqe = &mboxq->u.mqe;
5085                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5086                        LPFC_MAX_SUPPORTED_PAGES);
5087                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5088                         switch (pn_page[i]) {
5089                         case LPFC_SLI4_PARAMETERS:
5090                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5091                                 break;
5092                         default:
5093                                 break;
5094                         }
5095                 }
5096                 /* Read the port's SLI4 Parameters capabilities if supported. */
5097                 if (phba->sli4_hba.pc_sli4_params.supported)
5098                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5099                 if (rc) {
5100                         mempool_free(mboxq, phba->mbox_mem_pool);
5101                         rc = -EIO;
5102                         goto out_free_bsmbx;
5103                 }
5104         }
5105         /*
5106          * Get sli4 parameters that override parameters from Port capabilities.
5107          * If this call fails, it isn't critical unless the SLI4 parameters come
5108          * back in conflict.
5109          */
5110         rc = lpfc_get_sli4_parameters(phba, mboxq);
5111         if (rc) {
5112                 if (phba->sli4_hba.extents_in_use &&
5113                     phba->sli4_hba.rpi_hdrs_in_use) {
5114                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5115                                 "2999 Unsupported SLI4 Parameters "
5116                                 "Extents and RPI headers enabled.\n");
5117                         goto out_free_bsmbx;
5118                 }
5119         }
5120         mempool_free(mboxq, phba->mbox_mem_pool);
5121         /* Verify all the SLI4 queues */
5122         rc = lpfc_sli4_queue_verify(phba);
5123         if (rc)
5124                 goto out_free_bsmbx;
5125
5126         /* Create driver internal CQE event pool */
5127         rc = lpfc_sli4_cq_event_pool_create(phba);
5128         if (rc)
5129                 goto out_free_bsmbx;
5130
5131         /* Initialize sgl lists per host */
5132         lpfc_init_sgl_list(phba);
5133
5134         /* Allocate and initialize active sgl array */
5135         rc = lpfc_init_active_sgl_array(phba);
5136         if (rc) {
5137                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5138                                 "1430 Failed to initialize sgl list.\n");
5139                 goto out_destroy_cq_event_pool;
5140         }
5141         rc = lpfc_sli4_init_rpi_hdrs(phba);
5142         if (rc) {
5143                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5144                                 "1432 Failed to initialize rpi headers.\n");
5145                 goto out_free_active_sgl;
5146         }
5147
5148         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5149         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5150         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5151                                          GFP_KERNEL);
5152         if (!phba->fcf.fcf_rr_bmask) {
5153                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5154                                 "2759 Failed allocate memory for FCF round "
5155                                 "robin failover bmask\n");
5156                 rc = -ENOMEM;
5157                 goto out_remove_rpi_hdrs;
5158         }
5159
5160         phba->sli4_hba.fcp_eq_hdl =
5161                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5162                             phba->cfg_fcp_io_channel), GFP_KERNEL);
5163         if (!phba->sli4_hba.fcp_eq_hdl) {
5164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5165                                 "2572 Failed allocate memory for "
5166                                 "fast-path per-EQ handle array\n");
5167                 rc = -ENOMEM;
5168                 goto out_free_fcf_rr_bmask;
5169         }
5170
5171         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5172                                       phba->cfg_fcp_io_channel), GFP_KERNEL);
5173         if (!phba->sli4_hba.msix_entries) {
5174                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5175                                 "2573 Failed allocate memory for msi-x "
5176                                 "interrupt vector entries\n");
5177                 rc = -ENOMEM;
5178                 goto out_free_fcp_eq_hdl;
5179         }
5180
5181         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5182                                          phba->sli4_hba.num_present_cpu),
5183                                          GFP_KERNEL);
5184         if (!phba->sli4_hba.cpu_map) {
5185                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5186                                 "3327 Failed allocate memory for msi-x "
5187                                 "interrupt vector mapping\n");
5188                 rc = -ENOMEM;
5189                 goto out_free_msix;
5190         }
5191         if (lpfc_used_cpu == NULL) {
5192                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5193                                          GFP_KERNEL);
5194                 if (!lpfc_used_cpu) {
5195                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5196                                         "3335 Failed allocate memory for msi-x "
5197                                         "interrupt vector mapping\n");
5198                         kfree(phba->sli4_hba.cpu_map);
5199                         rc = -ENOMEM;
5200                         goto out_free_msix;
5201                 }
5202                 for (i = 0; i < lpfc_present_cpu; i++)
5203                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5204         }
5205
5206         /* Initialize io channels for round robin */
5207         cpup = phba->sli4_hba.cpu_map;
5208         rc = 0;
5209         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5210                 cpup->channel_id = rc;
5211                 rc++;
5212                 if (rc >= phba->cfg_fcp_io_channel)
5213                         rc = 0;
5214         }
5215
5216         /*
5217          * Enable sr-iov virtual functions if supported and configured
5218          * through the module parameter.
5219          */
5220         if (phba->cfg_sriov_nr_virtfn > 0) {
5221                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5222                                                  phba->cfg_sriov_nr_virtfn);
5223                 if (rc) {
5224                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5225                                         "3020 Requested number of SR-IOV "
5226                                         "virtual functions (%d) is not "
5227                                         "supported\n",
5228                                         phba->cfg_sriov_nr_virtfn);
5229                         phba->cfg_sriov_nr_virtfn = 0;
5230                 }
5231         }
5232
5233         return 0;
5234
5235 out_free_msix:
5236         kfree(phba->sli4_hba.msix_entries);
5237 out_free_fcp_eq_hdl:
5238         kfree(phba->sli4_hba.fcp_eq_hdl);
5239 out_free_fcf_rr_bmask:
5240         kfree(phba->fcf.fcf_rr_bmask);
5241 out_remove_rpi_hdrs:
5242         lpfc_sli4_remove_rpi_hdrs(phba);
5243 out_free_active_sgl:
5244         lpfc_free_active_sgl(phba);
5245 out_destroy_cq_event_pool:
5246         lpfc_sli4_cq_event_pool_destroy(phba);
5247 out_free_bsmbx:
5248         lpfc_destroy_bootstrap_mbox(phba);
5249 out_free_mem:
5250         lpfc_mem_free(phba);
5251         return rc;
5252 }
5253
5254 /**
5255  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5256  * @phba: pointer to lpfc hba data structure.
5257  *
5258  * This routine is invoked to unset the driver internal resources set up
5259  * specific for supporting the SLI-4 HBA device it attached to.
5260  **/
5261 static void
5262 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5263 {
5264         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5265
5266         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5267         kfree(phba->sli4_hba.cpu_map);
5268         phba->sli4_hba.num_present_cpu = 0;
5269         phba->sli4_hba.num_online_cpu = 0;
5270
5271         /* Free memory allocated for msi-x interrupt vector entries */
5272         kfree(phba->sli4_hba.msix_entries);
5273
5274         /* Free memory allocated for fast-path work queue handles */
5275         kfree(phba->sli4_hba.fcp_eq_hdl);
5276
5277         /* Free the allocated rpi headers. */
5278         lpfc_sli4_remove_rpi_hdrs(phba);
5279         lpfc_sli4_remove_rpis(phba);
5280
5281         /* Free eligible FCF index bmask */
5282         kfree(phba->fcf.fcf_rr_bmask);
5283
5284         /* Free the ELS sgl list */
5285         lpfc_free_active_sgl(phba);
5286         lpfc_free_els_sgl_list(phba);
5287
5288         /* Free the completion queue EQ event pool */
5289         lpfc_sli4_cq_event_release_all(phba);
5290         lpfc_sli4_cq_event_pool_destroy(phba);
5291
5292         /* Release resource identifiers. */
5293         lpfc_sli4_dealloc_resource_identifiers(phba);
5294
5295         /* Free the bsmbx region. */
5296         lpfc_destroy_bootstrap_mbox(phba);
5297
5298         /* Free the SLI Layer memory with SLI4 HBAs */
5299         lpfc_mem_free_all(phba);
5300
5301         /* Free the current connect table */
5302         list_for_each_entry_safe(conn_entry, next_conn_entry,
5303                 &phba->fcf_conn_rec_list, list) {
5304                 list_del_init(&conn_entry->list);
5305                 kfree(conn_entry);
5306         }
5307
5308         return;
5309 }
5310
5311 /**
5312  * lpfc_init_api_table_setup - Set up init api function jump table
5313  * @phba: The hba struct for which this call is being executed.
5314  * @dev_grp: The HBA PCI-Device group number.
5315  *
5316  * This routine sets up the device INIT interface API function jump table
5317  * in @phba struct.
5318  *
5319  * Returns: 0 - success, -ENODEV - failure.
5320  **/
5321 int
5322 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5323 {
5324         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5325         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5326         phba->lpfc_selective_reset = lpfc_selective_reset;
5327         switch (dev_grp) {
5328         case LPFC_PCI_DEV_LP:
5329                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5330                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5331                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5332                 break;
5333         case LPFC_PCI_DEV_OC:
5334                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5335                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5336                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5337                 break;
5338         default:
5339                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5340                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5341                                 dev_grp);
5342                 return -ENODEV;
5343                 break;
5344         }
5345         return 0;
5346 }
5347
5348 /**
5349  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5350  * @phba: pointer to lpfc hba data structure.
5351  *
5352  * This routine is invoked to set up the driver internal resources before the
5353  * device specific resource setup to support the HBA device it attached to.
5354  *
5355  * Return codes
5356  *      0 - successful
5357  *      other values - error
5358  **/
5359 static int
5360 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5361 {
5362         /*
5363          * Driver resources common to all SLI revisions
5364          */
5365         atomic_set(&phba->fast_event_count, 0);
5366         spin_lock_init(&phba->hbalock);
5367
5368         /* Initialize ndlp management spinlock */
5369         spin_lock_init(&phba->ndlp_lock);
5370
5371         INIT_LIST_HEAD(&phba->port_list);
5372         INIT_LIST_HEAD(&phba->work_list);
5373         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5374
5375         /* Initialize the wait queue head for the kernel thread */
5376         init_waitqueue_head(&phba->work_waitq);
5377
5378         /* Initialize the scsi buffer list used by driver for scsi IO */
5379         spin_lock_init(&phba->scsi_buf_list_get_lock);
5380         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5381         spin_lock_init(&phba->scsi_buf_list_put_lock);
5382         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5383
5384         /* Initialize the fabric iocb list */
5385         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5386
5387         /* Initialize list to save ELS buffers */
5388         INIT_LIST_HEAD(&phba->elsbuf);
5389
5390         /* Initialize FCF connection rec list */
5391         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5392
5393         return 0;
5394 }
5395
5396 /**
5397  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5398  * @phba: pointer to lpfc hba data structure.
5399  *
5400  * This routine is invoked to set up the driver internal resources after the
5401  * device specific resource setup to support the HBA device it attached to.
5402  *
5403  * Return codes
5404  *      0 - successful
5405  *      other values - error
5406  **/
5407 static int
5408 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5409 {
5410         int error;
5411
5412         /* Startup the kernel thread for this host adapter. */
5413         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5414                                           "lpfc_worker_%d", phba->brd_no);
5415         if (IS_ERR(phba->worker_thread)) {
5416                 error = PTR_ERR(phba->worker_thread);
5417                 return error;
5418         }
5419
5420         return 0;
5421 }
5422
5423 /**
5424  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5425  * @phba: pointer to lpfc hba data structure.
5426  *
5427  * This routine is invoked to unset the driver internal resources set up after
5428  * the device specific resource setup for supporting the HBA device it
5429  * attached to.
5430  **/
5431 static void
5432 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5433 {
5434         /* Stop kernel worker thread */
5435         kthread_stop(phba->worker_thread);
5436 }
5437
5438 /**
5439  * lpfc_free_iocb_list - Free iocb list.
5440  * @phba: pointer to lpfc hba data structure.
5441  *
5442  * This routine is invoked to free the driver's IOCB list and memory.
5443  **/
5444 static void
5445 lpfc_free_iocb_list(struct lpfc_hba *phba)
5446 {
5447         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5448
5449         spin_lock_irq(&phba->hbalock);
5450         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5451                                  &phba->lpfc_iocb_list, list) {
5452                 list_del(&iocbq_entry->list);
5453                 kfree(iocbq_entry);
5454                 phba->total_iocbq_bufs--;
5455         }
5456         spin_unlock_irq(&phba->hbalock);
5457
5458         return;
5459 }
5460
5461 /**
5462  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5463  * @phba: pointer to lpfc hba data structure.
5464  *
5465  * This routine is invoked to allocate and initizlize the driver's IOCB
5466  * list and set up the IOCB tag array accordingly.
5467  *
5468  * Return codes
5469  *      0 - successful
5470  *      other values - error
5471  **/
5472 static int
5473 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5474 {
5475         struct lpfc_iocbq *iocbq_entry = NULL;
5476         uint16_t iotag;
5477         int i;
5478
5479         /* Initialize and populate the iocb list per host.  */
5480         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5481         for (i = 0; i < iocb_count; i++) {
5482                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5483                 if (iocbq_entry == NULL) {
5484                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5485                                 "expected %d count. Unloading driver.\n",
5486                                 __func__, i, LPFC_IOCB_LIST_CNT);
5487                         goto out_free_iocbq;
5488                 }
5489
5490                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5491                 if (iotag == 0) {
5492                         kfree(iocbq_entry);
5493                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5494                                 "Unloading driver.\n", __func__);
5495                         goto out_free_iocbq;
5496                 }
5497                 iocbq_entry->sli4_lxritag = NO_XRI;
5498                 iocbq_entry->sli4_xritag = NO_XRI;
5499
5500                 spin_lock_irq(&phba->hbalock);
5501                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5502                 phba->total_iocbq_bufs++;
5503                 spin_unlock_irq(&phba->hbalock);
5504         }
5505
5506         return 0;
5507
5508 out_free_iocbq:
5509         lpfc_free_iocb_list(phba);
5510
5511         return -ENOMEM;
5512 }
5513
5514 /**
5515  * lpfc_free_sgl_list - Free a given sgl list.
5516  * @phba: pointer to lpfc hba data structure.
5517  * @sglq_list: pointer to the head of sgl list.
5518  *
5519  * This routine is invoked to free a give sgl list and memory.
5520  **/
5521 void
5522 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5523 {
5524         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5525
5526         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5527                 list_del(&sglq_entry->list);
5528                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5529                 kfree(sglq_entry);
5530         }
5531 }
5532
5533 /**
5534  * lpfc_free_els_sgl_list - Free els sgl list.
5535  * @phba: pointer to lpfc hba data structure.
5536  *
5537  * This routine is invoked to free the driver's els sgl list and memory.
5538  **/
5539 static void
5540 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5541 {
5542         LIST_HEAD(sglq_list);
5543
5544         /* Retrieve all els sgls from driver list */
5545         spin_lock_irq(&phba->hbalock);
5546         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5547         spin_unlock_irq(&phba->hbalock);
5548
5549         /* Now free the sgl list */
5550         lpfc_free_sgl_list(phba, &sglq_list);
5551 }
5552
5553 /**
5554  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5555  * @phba: pointer to lpfc hba data structure.
5556  *
5557  * This routine is invoked to allocate the driver's active sgl memory.
5558  * This array will hold the sglq_entry's for active IOs.
5559  **/
5560 static int
5561 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5562 {
5563         int size;
5564         size = sizeof(struct lpfc_sglq *);
5565         size *= phba->sli4_hba.max_cfg_param.max_xri;
5566
5567         phba->sli4_hba.lpfc_sglq_active_list =
5568                 kzalloc(size, GFP_KERNEL);
5569         if (!phba->sli4_hba.lpfc_sglq_active_list)
5570                 return -ENOMEM;
5571         return 0;
5572 }
5573
5574 /**
5575  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5576  * @phba: pointer to lpfc hba data structure.
5577  *
5578  * This routine is invoked to walk through the array of active sglq entries
5579  * and free all of the resources.
5580  * This is just a place holder for now.
5581  **/
5582 static void
5583 lpfc_free_active_sgl(struct lpfc_hba *phba)
5584 {
5585         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5586 }
5587
5588 /**
5589  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5590  * @phba: pointer to lpfc hba data structure.
5591  *
5592  * This routine is invoked to allocate and initizlize the driver's sgl
5593  * list and set up the sgl xritag tag array accordingly.
5594  *
5595  **/
5596 static void
5597 lpfc_init_sgl_list(struct lpfc_hba *phba)
5598 {
5599         /* Initialize and populate the sglq list per host/VF. */
5600         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5601         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5602
5603         /* els xri-sgl book keeping */
5604         phba->sli4_hba.els_xri_cnt = 0;
5605
5606         /* scsi xri-buffer book keeping */
5607         phba->sli4_hba.scsi_xri_cnt = 0;
5608 }
5609
5610 /**
5611  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5612  * @phba: pointer to lpfc hba data structure.
5613  *
5614  * This routine is invoked to post rpi header templates to the
5615  * port for those SLI4 ports that do not support extents.  This routine
5616  * posts a PAGE_SIZE memory region to the port to hold up to
5617  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5618  * and should be called only when interrupts are disabled.
5619  *
5620  * Return codes
5621  *      0 - successful
5622  *      -ERROR - otherwise.
5623  **/
5624 int
5625 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5626 {
5627         int rc = 0;
5628         struct lpfc_rpi_hdr *rpi_hdr;
5629
5630         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5631         if (!phba->sli4_hba.rpi_hdrs_in_use)
5632                 return rc;
5633         if (phba->sli4_hba.extents_in_use)
5634                 return -EIO;
5635
5636         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5637         if (!rpi_hdr) {
5638                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5639                                 "0391 Error during rpi post operation\n");
5640                 lpfc_sli4_remove_rpis(phba);
5641                 rc = -ENODEV;
5642         }
5643
5644         return rc;
5645 }
5646
5647 /**
5648  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5649  * @phba: pointer to lpfc hba data structure.
5650  *
5651  * This routine is invoked to allocate a single 4KB memory region to
5652  * support rpis and stores them in the phba.  This single region
5653  * provides support for up to 64 rpis.  The region is used globally
5654  * by the device.
5655  *
5656  * Returns:
5657  *   A valid rpi hdr on success.
5658  *   A NULL pointer on any failure.
5659  **/
5660 struct lpfc_rpi_hdr *
5661 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5662 {
5663         uint16_t rpi_limit, curr_rpi_range;
5664         struct lpfc_dmabuf *dmabuf;
5665         struct lpfc_rpi_hdr *rpi_hdr;
5666         uint32_t rpi_count;
5667
5668         /*
5669          * If the SLI4 port supports extents, posting the rpi header isn't
5670          * required.  Set the expected maximum count and let the actual value
5671          * get set when extents are fully allocated.
5672          */
5673         if (!phba->sli4_hba.rpi_hdrs_in_use)
5674                 return NULL;
5675         if (phba->sli4_hba.extents_in_use)
5676                 return NULL;
5677
5678         /* The limit on the logical index is just the max_rpi count. */
5679         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5680         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5681
5682         spin_lock_irq(&phba->hbalock);
5683         /*
5684          * Establish the starting RPI in this header block.  The starting
5685          * rpi is normalized to a zero base because the physical rpi is
5686          * port based.
5687          */
5688         curr_rpi_range = phba->sli4_hba.next_rpi;
5689         spin_unlock_irq(&phba->hbalock);
5690
5691         /*
5692          * The port has a limited number of rpis. The increment here
5693          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5694          * and to allow the full max_rpi range per port.
5695          */
5696         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5697                 rpi_count = rpi_limit - curr_rpi_range;
5698         else
5699                 rpi_count = LPFC_RPI_HDR_COUNT;
5700
5701         if (!rpi_count)
5702                 return NULL;
5703         /*
5704          * First allocate the protocol header region for the port.  The
5705          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5706          */
5707         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5708         if (!dmabuf)
5709                 return NULL;
5710
5711         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5712                                           LPFC_HDR_TEMPLATE_SIZE,
5713                                           &dmabuf->phys,
5714                                           GFP_KERNEL);
5715         if (!dmabuf->virt) {
5716                 rpi_hdr = NULL;
5717                 goto err_free_dmabuf;
5718         }
5719
5720         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5721         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5722                 rpi_hdr = NULL;
5723                 goto err_free_coherent;
5724         }
5725
5726         /* Save the rpi header data for cleanup later. */
5727         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5728         if (!rpi_hdr)
5729                 goto err_free_coherent;
5730
5731         rpi_hdr->dmabuf = dmabuf;
5732         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5733         rpi_hdr->page_count = 1;
5734         spin_lock_irq(&phba->hbalock);
5735
5736         /* The rpi_hdr stores the logical index only. */
5737         rpi_hdr->start_rpi = curr_rpi_range;
5738         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5739
5740         /*
5741          * The next_rpi stores the next logical module-64 rpi value used
5742          * to post physical rpis in subsequent rpi postings.
5743          */
5744         phba->sli4_hba.next_rpi += rpi_count;
5745         spin_unlock_irq(&phba->hbalock);
5746         return rpi_hdr;
5747
5748  err_free_coherent:
5749         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5750                           dmabuf->virt, dmabuf->phys);
5751  err_free_dmabuf:
5752         kfree(dmabuf);
5753         return NULL;
5754 }
5755
5756 /**
5757  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5758  * @phba: pointer to lpfc hba data structure.
5759  *
5760  * This routine is invoked to remove all memory resources allocated
5761  * to support rpis for SLI4 ports not supporting extents. This routine
5762  * presumes the caller has released all rpis consumed by fabric or port
5763  * logins and is prepared to have the header pages removed.
5764  **/
5765 void
5766 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5767 {
5768         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5769
5770         if (!phba->sli4_hba.rpi_hdrs_in_use)
5771                 goto exit;
5772
5773         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5774                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5775                 list_del(&rpi_hdr->list);
5776                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5777                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5778                 kfree(rpi_hdr->dmabuf);
5779                 kfree(rpi_hdr);
5780         }
5781  exit:
5782         /* There are no rpis available to the port now. */
5783         phba->sli4_hba.next_rpi = 0;
5784 }
5785
5786 /**
5787  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5788  * @pdev: pointer to pci device data structure.
5789  *
5790  * This routine is invoked to allocate the driver hba data structure for an
5791  * HBA device. If the allocation is successful, the phba reference to the
5792  * PCI device data structure is set.
5793  *
5794  * Return codes
5795  *      pointer to @phba - successful
5796  *      NULL - error
5797  **/
5798 static struct lpfc_hba *
5799 lpfc_hba_alloc(struct pci_dev *pdev)
5800 {
5801         struct lpfc_hba *phba;
5802
5803         /* Allocate memory for HBA structure */
5804         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5805         if (!phba) {
5806                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5807                 return NULL;
5808         }
5809
5810         /* Set reference to PCI device in HBA structure */
5811         phba->pcidev = pdev;
5812
5813         /* Assign an unused board number */
5814         phba->brd_no = lpfc_get_instance();
5815         if (phba->brd_no < 0) {
5816                 kfree(phba);
5817                 return NULL;
5818         }
5819
5820         spin_lock_init(&phba->ct_ev_lock);
5821         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5822
5823         return phba;
5824 }
5825
5826 /**
5827  * lpfc_hba_free - Free driver hba data structure with a device.
5828  * @phba: pointer to lpfc hba data structure.
5829  *
5830  * This routine is invoked to free the driver hba data structure with an
5831  * HBA device.
5832  **/
5833 static void
5834 lpfc_hba_free(struct lpfc_hba *phba)
5835 {
5836         /* Release the driver assigned board number */
5837         idr_remove(&lpfc_hba_index, phba->brd_no);
5838
5839         /* Free memory allocated with sli rings */
5840         kfree(phba->sli.ring);
5841         phba->sli.ring = NULL;
5842
5843         kfree(phba);
5844         return;
5845 }
5846
5847 /**
5848  * lpfc_create_shost - Create hba physical port with associated scsi host.
5849  * @phba: pointer to lpfc hba data structure.
5850  *
5851  * This routine is invoked to create HBA physical port and associate a SCSI
5852  * host with it.
5853  *
5854  * Return codes
5855  *      0 - successful
5856  *      other values - error
5857  **/
5858 static int
5859 lpfc_create_shost(struct lpfc_hba *phba)
5860 {
5861         struct lpfc_vport *vport;
5862         struct Scsi_Host  *shost;
5863
5864         /* Initialize HBA FC structure */
5865         phba->fc_edtov = FF_DEF_EDTOV;
5866         phba->fc_ratov = FF_DEF_RATOV;
5867         phba->fc_altov = FF_DEF_ALTOV;
5868         phba->fc_arbtov = FF_DEF_ARBTOV;
5869
5870         atomic_set(&phba->sdev_cnt, 0);
5871         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5872         if (!vport)
5873                 return -ENODEV;
5874
5875         shost = lpfc_shost_from_vport(vport);
5876         phba->pport = vport;
5877         lpfc_debugfs_initialize(vport);
5878         /* Put reference to SCSI host to driver's device private data */
5879         pci_set_drvdata(phba->pcidev, shost);
5880
5881         return 0;
5882 }
5883
5884 /**
5885  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5886  * @phba: pointer to lpfc hba data structure.
5887  *
5888  * This routine is invoked to destroy HBA physical port and the associated
5889  * SCSI host.
5890  **/
5891 static void
5892 lpfc_destroy_shost(struct lpfc_hba *phba)
5893 {
5894         struct lpfc_vport *vport = phba->pport;
5895
5896         /* Destroy physical port that associated with the SCSI host */
5897         destroy_port(vport);
5898
5899         return;
5900 }
5901
5902 /**
5903  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5904  * @phba: pointer to lpfc hba data structure.
5905  * @shost: the shost to be used to detect Block guard settings.
5906  *
5907  * This routine sets up the local Block guard protocol settings for @shost.
5908  * This routine also allocates memory for debugging bg buffers.
5909  **/
5910 static void
5911 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5912 {
5913         uint32_t old_mask;
5914         uint32_t old_guard;
5915
5916         int pagecnt = 10;
5917         if (lpfc_prot_mask && lpfc_prot_guard) {
5918                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5919                                 "1478 Registering BlockGuard with the "
5920                                 "SCSI layer\n");
5921
5922                 old_mask = lpfc_prot_mask;
5923                 old_guard = lpfc_prot_guard;
5924
5925                 /* Only allow supported values */
5926                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5927                         SHOST_DIX_TYPE0_PROTECTION |
5928                         SHOST_DIX_TYPE1_PROTECTION);
5929                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5930
5931                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5932                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5933                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5934
5935                 if (lpfc_prot_mask && lpfc_prot_guard) {
5936                         if ((old_mask != lpfc_prot_mask) ||
5937                                 (old_guard != lpfc_prot_guard))
5938                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5939                                         "1475 Registering BlockGuard with the "
5940                                         "SCSI layer: mask %d  guard %d\n",
5941                                         lpfc_prot_mask, lpfc_prot_guard);
5942
5943                         scsi_host_set_prot(shost, lpfc_prot_mask);
5944                         scsi_host_set_guard(shost, lpfc_prot_guard);
5945                 } else
5946                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5947                                 "1479 Not Registering BlockGuard with the SCSI "
5948                                 "layer, Bad protection parameters: %d %d\n",
5949                                 old_mask, old_guard);
5950         }
5951
5952         if (!_dump_buf_data) {
5953                 while (pagecnt) {
5954                         spin_lock_init(&_dump_buf_lock);
5955                         _dump_buf_data =
5956                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5957                         if (_dump_buf_data) {
5958                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5959                                         "9043 BLKGRD: allocated %d pages for "
5960                                        "_dump_buf_data at 0x%p\n",
5961                                        (1 << pagecnt), _dump_buf_data);
5962                                 _dump_buf_data_order = pagecnt;
5963                                 memset(_dump_buf_data, 0,
5964                                        ((1 << PAGE_SHIFT) << pagecnt));
5965                                 break;
5966                         } else
5967                                 --pagecnt;
5968                 }
5969                 if (!_dump_buf_data_order)
5970                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5971                                 "9044 BLKGRD: ERROR unable to allocate "
5972                                "memory for hexdump\n");
5973         } else
5974                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5975                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5976                        "\n", _dump_buf_data);
5977         if (!_dump_buf_dif) {
5978                 while (pagecnt) {
5979                         _dump_buf_dif =
5980                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5981                         if (_dump_buf_dif) {
5982                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5983                                         "9046 BLKGRD: allocated %d pages for "
5984                                        "_dump_buf_dif at 0x%p\n",
5985                                        (1 << pagecnt), _dump_buf_dif);
5986                                 _dump_buf_dif_order = pagecnt;
5987                                 memset(_dump_buf_dif, 0,
5988                                        ((1 << PAGE_SHIFT) << pagecnt));
5989                                 break;
5990                         } else
5991                                 --pagecnt;
5992                 }
5993                 if (!_dump_buf_dif_order)
5994                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5995                         "9047 BLKGRD: ERROR unable to allocate "
5996                                "memory for hexdump\n");
5997         } else
5998                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5999                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6000                        _dump_buf_dif);
6001 }
6002
6003 /**
6004  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6005  * @phba: pointer to lpfc hba data structure.
6006  *
6007  * This routine is invoked to perform all the necessary post initialization
6008  * setup for the device.
6009  **/
6010 static void
6011 lpfc_post_init_setup(struct lpfc_hba *phba)
6012 {
6013         struct Scsi_Host  *shost;
6014         struct lpfc_adapter_event_header adapter_event;
6015
6016         /* Get the default values for Model Name and Description */
6017         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6018
6019         /*
6020          * hba setup may have changed the hba_queue_depth so we need to
6021          * adjust the value of can_queue.
6022          */
6023         shost = pci_get_drvdata(phba->pcidev);
6024         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6025         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6026                 lpfc_setup_bg(phba, shost);
6027
6028         lpfc_host_attrib_init(shost);
6029
6030         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6031                 spin_lock_irq(shost->host_lock);
6032                 lpfc_poll_start_timer(phba);
6033                 spin_unlock_irq(shost->host_lock);
6034         }
6035
6036         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6037                         "0428 Perform SCSI scan\n");
6038         /* Send board arrival event to upper layer */
6039         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6040         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6041         fc_host_post_vendor_event(shost, fc_get_event_number(),
6042                                   sizeof(adapter_event),
6043                                   (char *) &adapter_event,
6044                                   LPFC_NL_VENDOR_ID);
6045         return;
6046 }
6047
6048 /**
6049  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6050  * @phba: pointer to lpfc hba data structure.
6051  *
6052  * This routine is invoked to set up the PCI device memory space for device
6053  * with SLI-3 interface spec.
6054  *
6055  * Return codes
6056  *      0 - successful
6057  *      other values - error
6058  **/
6059 static int
6060 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6061 {
6062         struct pci_dev *pdev;
6063         unsigned long bar0map_len, bar2map_len;
6064         int i, hbq_count;
6065         void *ptr;
6066         int error = -ENODEV;
6067
6068         /* Obtain PCI device reference */
6069         if (!phba->pcidev)
6070                 return error;
6071         else
6072                 pdev = phba->pcidev;
6073
6074         /* Set the device DMA mask size */
6075         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6076          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6077                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6078                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6079                         return error;
6080                 }
6081         }
6082
6083         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6084          * required by each mapping.
6085          */
6086         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6087         bar0map_len = pci_resource_len(pdev, 0);
6088
6089         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6090         bar2map_len = pci_resource_len(pdev, 2);
6091
6092         /* Map HBA SLIM to a kernel virtual address. */
6093         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6094         if (!phba->slim_memmap_p) {
6095                 dev_printk(KERN_ERR, &pdev->dev,
6096                            "ioremap failed for SLIM memory.\n");
6097                 goto out;
6098         }
6099
6100         /* Map HBA Control Registers to a kernel virtual address. */
6101         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6102         if (!phba->ctrl_regs_memmap_p) {
6103                 dev_printk(KERN_ERR, &pdev->dev,
6104                            "ioremap failed for HBA control registers.\n");
6105                 goto out_iounmap_slim;
6106         }
6107
6108         /* Allocate memory for SLI-2 structures */
6109         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6110                                                SLI2_SLIM_SIZE,
6111                                                &phba->slim2p.phys,
6112                                                GFP_KERNEL);
6113         if (!phba->slim2p.virt)
6114                 goto out_iounmap;
6115
6116         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6117         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6118         phba->mbox_ext = (phba->slim2p.virt +
6119                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6120         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6121         phba->IOCBs = (phba->slim2p.virt +
6122                        offsetof(struct lpfc_sli2_slim, IOCBs));
6123
6124         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6125                                                  lpfc_sli_hbq_size(),
6126                                                  &phba->hbqslimp.phys,
6127                                                  GFP_KERNEL);
6128         if (!phba->hbqslimp.virt)
6129                 goto out_free_slim;
6130
6131         hbq_count = lpfc_sli_hbq_count();
6132         ptr = phba->hbqslimp.virt;
6133         for (i = 0; i < hbq_count; ++i) {
6134                 phba->hbqs[i].hbq_virt = ptr;
6135                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6136                 ptr += (lpfc_hbq_defs[i]->entry_count *
6137                         sizeof(struct lpfc_hbq_entry));
6138         }
6139         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6140         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6141
6142         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6143
6144         INIT_LIST_HEAD(&phba->rb_pend_list);
6145
6146         phba->MBslimaddr = phba->slim_memmap_p;
6147         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6148         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6149         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6150         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6151
6152         return 0;
6153
6154 out_free_slim:
6155         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6156                           phba->slim2p.virt, phba->slim2p.phys);
6157 out_iounmap:
6158         iounmap(phba->ctrl_regs_memmap_p);
6159 out_iounmap_slim:
6160         iounmap(phba->slim_memmap_p);
6161 out:
6162         return error;
6163 }
6164
6165 /**
6166  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6167  * @phba: pointer to lpfc hba data structure.
6168  *
6169  * This routine is invoked to unset the PCI device memory space for device
6170  * with SLI-3 interface spec.
6171  **/
6172 static void
6173 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6174 {
6175         struct pci_dev *pdev;
6176
6177         /* Obtain PCI device reference */
6178         if (!phba->pcidev)
6179                 return;
6180         else
6181                 pdev = phba->pcidev;
6182
6183         /* Free coherent DMA memory allocated */
6184         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6185                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6186         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6187                           phba->slim2p.virt, phba->slim2p.phys);
6188
6189         /* I/O memory unmap */
6190         iounmap(phba->ctrl_regs_memmap_p);
6191         iounmap(phba->slim_memmap_p);
6192
6193         return;
6194 }
6195
6196 /**
6197  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6198  * @phba: pointer to lpfc hba data structure.
6199  *
6200  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6201  * done and check status.
6202  *
6203  * Return 0 if successful, otherwise -ENODEV.
6204  **/
6205 int
6206 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6207 {
6208         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6209         struct lpfc_register reg_data;
6210         int i, port_error = 0;
6211         uint32_t if_type;
6212
6213         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6214         memset(&reg_data, 0, sizeof(reg_data));
6215         if (!phba->sli4_hba.PSMPHRregaddr)
6216                 return -ENODEV;
6217
6218         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6219         for (i = 0; i < 3000; i++) {
6220                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6221                         &portsmphr_reg.word0) ||
6222                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6223                         /* Port has a fatal POST error, break out */
6224                         port_error = -ENODEV;
6225                         break;
6226                 }
6227                 if (LPFC_POST_STAGE_PORT_READY ==
6228                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6229                         break;
6230                 msleep(10);
6231         }
6232
6233         /*
6234          * If there was a port error during POST, then don't proceed with
6235          * other register reads as the data may not be valid.  Just exit.
6236          */
6237         if (port_error) {
6238                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6239                         "1408 Port Failed POST - portsmphr=0x%x, "
6240                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6241                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6242                         portsmphr_reg.word0,
6243                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6244                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6245                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6246                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6247                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6248                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6249                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6250                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6251         } else {
6252                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6253                                 "2534 Device Info: SLIFamily=0x%x, "
6254                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6255                                 "SLIHint_2=0x%x, FT=0x%x\n",
6256                                 bf_get(lpfc_sli_intf_sli_family,
6257                                        &phba->sli4_hba.sli_intf),
6258                                 bf_get(lpfc_sli_intf_slirev,
6259                                        &phba->sli4_hba.sli_intf),
6260                                 bf_get(lpfc_sli_intf_if_type,
6261                                        &phba->sli4_hba.sli_intf),
6262                                 bf_get(lpfc_sli_intf_sli_hint1,
6263                                        &phba->sli4_hba.sli_intf),
6264                                 bf_get(lpfc_sli_intf_sli_hint2,
6265                                        &phba->sli4_hba.sli_intf),
6266                                 bf_get(lpfc_sli_intf_func_type,
6267                                        &phba->sli4_hba.sli_intf));
6268                 /*
6269                  * Check for other Port errors during the initialization
6270                  * process.  Fail the load if the port did not come up
6271                  * correctly.
6272                  */
6273                 if_type = bf_get(lpfc_sli_intf_if_type,
6274                                  &phba->sli4_hba.sli_intf);
6275                 switch (if_type) {
6276                 case LPFC_SLI_INTF_IF_TYPE_0:
6277                         phba->sli4_hba.ue_mask_lo =
6278                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6279                         phba->sli4_hba.ue_mask_hi =
6280                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6281                         uerrlo_reg.word0 =
6282                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6283                         uerrhi_reg.word0 =
6284                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6285                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6286                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6287                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6288                                                 "1422 Unrecoverable Error "
6289                                                 "Detected during POST "
6290                                                 "uerr_lo_reg=0x%x, "
6291                                                 "uerr_hi_reg=0x%x, "
6292                                                 "ue_mask_lo_reg=0x%x, "
6293                                                 "ue_mask_hi_reg=0x%x\n",
6294                                                 uerrlo_reg.word0,
6295                                                 uerrhi_reg.word0,
6296                                                 phba->sli4_hba.ue_mask_lo,
6297                                                 phba->sli4_hba.ue_mask_hi);
6298                                 port_error = -ENODEV;
6299                         }
6300                         break;
6301                 case LPFC_SLI_INTF_IF_TYPE_2:
6302                         /* Final checks.  The port status should be clean. */
6303                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6304                                 &reg_data.word0) ||
6305                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6306                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6307                                 phba->work_status[0] =
6308                                         readl(phba->sli4_hba.u.if_type2.
6309                                               ERR1regaddr);
6310                                 phba->work_status[1] =
6311                                         readl(phba->sli4_hba.u.if_type2.
6312                                               ERR2regaddr);
6313                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314                                         "2888 Unrecoverable port error "
6315                                         "following POST: port status reg "
6316                                         "0x%x, port_smphr reg 0x%x, "
6317                                         "error 1=0x%x, error 2=0x%x\n",
6318                                         reg_data.word0,
6319                                         portsmphr_reg.word0,
6320                                         phba->work_status[0],
6321                                         phba->work_status[1]);
6322                                 port_error = -ENODEV;
6323                         }
6324                         break;
6325                 case LPFC_SLI_INTF_IF_TYPE_1:
6326                 default:
6327                         break;
6328                 }
6329         }
6330         return port_error;
6331 }
6332
6333 /**
6334  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6335  * @phba: pointer to lpfc hba data structure.
6336  * @if_type:  The SLI4 interface type getting configured.
6337  *
6338  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6339  * memory map.
6340  **/
6341 static void
6342 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6343 {
6344         switch (if_type) {
6345         case LPFC_SLI_INTF_IF_TYPE_0:
6346                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6347                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6348                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6349                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6350                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6351                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6352                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6353                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6354                 phba->sli4_hba.SLIINTFregaddr =
6355                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6356                 break;
6357         case LPFC_SLI_INTF_IF_TYPE_2:
6358                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6359                         phba->sli4_hba.conf_regs_memmap_p +
6360                                                 LPFC_CTL_PORT_ER1_OFFSET;
6361                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6362                         phba->sli4_hba.conf_regs_memmap_p +
6363                                                 LPFC_CTL_PORT_ER2_OFFSET;
6364                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6365                         phba->sli4_hba.conf_regs_memmap_p +
6366                                                 LPFC_CTL_PORT_CTL_OFFSET;
6367                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6368                         phba->sli4_hba.conf_regs_memmap_p +
6369                                                 LPFC_CTL_PORT_STA_OFFSET;
6370                 phba->sli4_hba.SLIINTFregaddr =
6371                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6372                 phba->sli4_hba.PSMPHRregaddr =
6373                         phba->sli4_hba.conf_regs_memmap_p +
6374                                                 LPFC_CTL_PORT_SEM_OFFSET;
6375                 phba->sli4_hba.RQDBregaddr =
6376                         phba->sli4_hba.conf_regs_memmap_p +
6377                                                 LPFC_ULP0_RQ_DOORBELL;
6378                 phba->sli4_hba.WQDBregaddr =
6379                         phba->sli4_hba.conf_regs_memmap_p +
6380                                                 LPFC_ULP0_WQ_DOORBELL;
6381                 phba->sli4_hba.EQCQDBregaddr =
6382                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6383                 phba->sli4_hba.MQDBregaddr =
6384                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6385                 phba->sli4_hba.BMBXregaddr =
6386                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6387                 break;
6388         case LPFC_SLI_INTF_IF_TYPE_1:
6389         default:
6390                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6391                            "FATAL - unsupported SLI4 interface type - %d\n",
6392                            if_type);
6393                 break;
6394         }
6395 }
6396
6397 /**
6398  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6399  * @phba: pointer to lpfc hba data structure.
6400  *
6401  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6402  * memory map.
6403  **/
6404 static void
6405 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6406 {
6407         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6408                 LPFC_SLIPORT_IF0_SMPHR;
6409         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6410                 LPFC_HST_ISR0;
6411         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6412                 LPFC_HST_IMR0;
6413         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6414                 LPFC_HST_ISCR0;
6415 }
6416
6417 /**
6418  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6419  * @phba: pointer to lpfc hba data structure.
6420  * @vf: virtual function number
6421  *
6422  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6423  * based on the given viftual function number, @vf.
6424  *
6425  * Return 0 if successful, otherwise -ENODEV.
6426  **/
6427 static int
6428 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6429 {
6430         if (vf > LPFC_VIR_FUNC_MAX)
6431                 return -ENODEV;
6432
6433         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6434                                 vf * LPFC_VFR_PAGE_SIZE +
6435                                         LPFC_ULP0_RQ_DOORBELL);
6436         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6437                                 vf * LPFC_VFR_PAGE_SIZE +
6438                                         LPFC_ULP0_WQ_DOORBELL);
6439         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6440                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6441         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6442                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6443         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6444                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6445         return 0;
6446 }
6447
6448 /**
6449  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6450  * @phba: pointer to lpfc hba data structure.
6451  *
6452  * This routine is invoked to create the bootstrap mailbox
6453  * region consistent with the SLI-4 interface spec.  This
6454  * routine allocates all memory necessary to communicate
6455  * mailbox commands to the port and sets up all alignment
6456  * needs.  No locks are expected to be held when calling
6457  * this routine.
6458  *
6459  * Return codes
6460  *      0 - successful
6461  *      -ENOMEM - could not allocated memory.
6462  **/
6463 static int
6464 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6465 {
6466         uint32_t bmbx_size;
6467         struct lpfc_dmabuf *dmabuf;
6468         struct dma_address *dma_address;
6469         uint32_t pa_addr;
6470         uint64_t phys_addr;
6471
6472         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6473         if (!dmabuf)
6474                 return -ENOMEM;
6475
6476         /*
6477          * The bootstrap mailbox region is comprised of 2 parts
6478          * plus an alignment restriction of 16 bytes.
6479          */
6480         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6481         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6482                                           bmbx_size,
6483                                           &dmabuf->phys,
6484                                           GFP_KERNEL);
6485         if (!dmabuf->virt) {
6486                 kfree(dmabuf);
6487                 return -ENOMEM;
6488         }
6489         memset(dmabuf->virt, 0, bmbx_size);
6490
6491         /*
6492          * Initialize the bootstrap mailbox pointers now so that the register
6493          * operations are simple later.  The mailbox dma address is required
6494          * to be 16-byte aligned.  Also align the virtual memory as each
6495          * maibox is copied into the bmbx mailbox region before issuing the
6496          * command to the port.
6497          */
6498         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6499         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6500
6501         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6502                                               LPFC_ALIGN_16_BYTE);
6503         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6504                                               LPFC_ALIGN_16_BYTE);
6505
6506         /*
6507          * Set the high and low physical addresses now.  The SLI4 alignment
6508          * requirement is 16 bytes and the mailbox is posted to the port
6509          * as two 30-bit addresses.  The other data is a bit marking whether
6510          * the 30-bit address is the high or low address.
6511          * Upcast bmbx aphys to 64bits so shift instruction compiles
6512          * clean on 32 bit machines.
6513          */
6514         dma_address = &phba->sli4_hba.bmbx.dma_address;
6515         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6516         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6517         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6518                                            LPFC_BMBX_BIT1_ADDR_HI);
6519
6520         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6521         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6522                                            LPFC_BMBX_BIT1_ADDR_LO);
6523         return 0;
6524 }
6525
6526 /**
6527  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6528  * @phba: pointer to lpfc hba data structure.
6529  *
6530  * This routine is invoked to teardown the bootstrap mailbox
6531  * region and release all host resources. This routine requires
6532  * the caller to ensure all mailbox commands recovered, no
6533  * additional mailbox comands are sent, and interrupts are disabled
6534  * before calling this routine.
6535  *
6536  **/
6537 static void
6538 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6539 {
6540         dma_free_coherent(&phba->pcidev->dev,
6541                           phba->sli4_hba.bmbx.bmbx_size,
6542                           phba->sli4_hba.bmbx.dmabuf->virt,
6543                           phba->sli4_hba.bmbx.dmabuf->phys);
6544
6545         kfree(phba->sli4_hba.bmbx.dmabuf);
6546         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6547 }
6548
6549 /**
6550  * lpfc_sli4_read_config - Get the config parameters.
6551  * @phba: pointer to lpfc hba data structure.
6552  *
6553  * This routine is invoked to read the configuration parameters from the HBA.
6554  * The configuration parameters are used to set the base and maximum values
6555  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6556  * allocation for the port.
6557  *
6558  * Return codes
6559  *      0 - successful
6560  *      -ENOMEM - No available memory
6561  *      -EIO - The mailbox failed to complete successfully.
6562  **/
6563 int
6564 lpfc_sli4_read_config(struct lpfc_hba *phba)
6565 {
6566         LPFC_MBOXQ_t *pmb;
6567         struct lpfc_mbx_read_config *rd_config;
6568         union  lpfc_sli4_cfg_shdr *shdr;
6569         uint32_t shdr_status, shdr_add_status;
6570         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6571         struct lpfc_rsrc_desc_fcfcoe *desc;
6572         char *pdesc_0;
6573         uint32_t desc_count;
6574         int length, i, rc = 0, rc2;
6575
6576         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6577         if (!pmb) {
6578                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6579                                 "2011 Unable to allocate memory for issuing "
6580                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6581                 return -ENOMEM;
6582         }
6583
6584         lpfc_read_config(phba, pmb);
6585
6586         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6587         if (rc != MBX_SUCCESS) {
6588                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6589                         "2012 Mailbox failed , mbxCmd x%x "
6590                         "READ_CONFIG, mbxStatus x%x\n",
6591                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6592                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6593                 rc = -EIO;
6594         } else {
6595                 rd_config = &pmb->u.mqe.un.rd_config;
6596                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6597                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6598                         phba->sli4_hba.lnk_info.lnk_tp =
6599                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6600                         phba->sli4_hba.lnk_info.lnk_no =
6601                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6602                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6603                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6604                                         phba->sli4_hba.lnk_info.lnk_tp,
6605                                         phba->sli4_hba.lnk_info.lnk_no);
6606                 } else
6607                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6608                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6609                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6610                 phba->sli4_hba.extents_in_use =
6611                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6612                 phba->sli4_hba.max_cfg_param.max_xri =
6613                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6614                 phba->sli4_hba.max_cfg_param.xri_base =
6615                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6616                 phba->sli4_hba.max_cfg_param.max_vpi =
6617                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6618                 phba->sli4_hba.max_cfg_param.vpi_base =
6619                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6620                 phba->sli4_hba.max_cfg_param.max_rpi =
6621                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6622                 phba->sli4_hba.max_cfg_param.rpi_base =
6623                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6624                 phba->sli4_hba.max_cfg_param.max_vfi =
6625                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6626                 phba->sli4_hba.max_cfg_param.vfi_base =
6627                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6628                 phba->sli4_hba.max_cfg_param.max_fcfi =
6629                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6630                 phba->sli4_hba.max_cfg_param.max_eq =
6631                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6632                 phba->sli4_hba.max_cfg_param.max_rq =
6633                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6634                 phba->sli4_hba.max_cfg_param.max_wq =
6635                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6636                 phba->sli4_hba.max_cfg_param.max_cq =
6637                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6638                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6639                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6640                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6641                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6642                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6643                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6644                 phba->max_vports = phba->max_vpi;
6645                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6646                                 "2003 cfg params Extents? %d "
6647                                 "XRI(B:%d M:%d), "
6648                                 "VPI(B:%d M:%d) "
6649                                 "VFI(B:%d M:%d) "
6650                                 "RPI(B:%d M:%d) "
6651                                 "FCFI(Count:%d)\n",
6652                                 phba->sli4_hba.extents_in_use,
6653                                 phba->sli4_hba.max_cfg_param.xri_base,
6654                                 phba->sli4_hba.max_cfg_param.max_xri,
6655                                 phba->sli4_hba.max_cfg_param.vpi_base,
6656                                 phba->sli4_hba.max_cfg_param.max_vpi,
6657                                 phba->sli4_hba.max_cfg_param.vfi_base,
6658                                 phba->sli4_hba.max_cfg_param.max_vfi,
6659                                 phba->sli4_hba.max_cfg_param.rpi_base,
6660                                 phba->sli4_hba.max_cfg_param.max_rpi,
6661                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6662         }
6663
6664         if (rc)
6665                 goto read_cfg_out;
6666
6667         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6668         length = phba->sli4_hba.max_cfg_param.max_xri -
6669                         lpfc_sli4_get_els_iocb_cnt(phba);
6670         if (phba->cfg_hba_queue_depth > length) {
6671                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6672                                 "3361 HBA queue depth changed from %d to %d\n",
6673                                 phba->cfg_hba_queue_depth, length);
6674                 phba->cfg_hba_queue_depth = length;
6675         }
6676
6677         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6678             LPFC_SLI_INTF_IF_TYPE_2)
6679                 goto read_cfg_out;
6680
6681         /* get the pf# and vf# for SLI4 if_type 2 port */
6682         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6683                   sizeof(struct lpfc_sli4_cfg_mhdr));
6684         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6685                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6686                          length, LPFC_SLI4_MBX_EMBED);
6687
6688         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6689         shdr = (union lpfc_sli4_cfg_shdr *)
6690                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6691         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6692         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6693         if (rc2 || shdr_status || shdr_add_status) {
6694                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6695                                 "3026 Mailbox failed , mbxCmd x%x "
6696                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6697                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6698                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6699                 goto read_cfg_out;
6700         }
6701
6702         /* search for fc_fcoe resrouce descriptor */
6703         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6704         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6705
6706         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6707         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6708         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6709         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6710                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6711         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6712                 goto read_cfg_out;
6713
6714         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6715                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6716                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6717                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6718                         phba->sli4_hba.iov.pf_number =
6719                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6720                         phba->sli4_hba.iov.vf_number =
6721                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6722                         break;
6723                 }
6724         }
6725
6726         if (i < LPFC_RSRC_DESC_MAX_NUM)
6727                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6728                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6729                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6730                                 phba->sli4_hba.iov.vf_number);
6731         else
6732                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6733                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6734                                 "Resrouce Descriptor:x%x\n",
6735                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6736
6737 read_cfg_out:
6738         mempool_free(pmb, phba->mbox_mem_pool);
6739         return rc;
6740 }
6741
6742 /**
6743  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6744  * @phba: pointer to lpfc hba data structure.
6745  *
6746  * This routine is invoked to setup the port-side endian order when
6747  * the port if_type is 0.  This routine has no function for other
6748  * if_types.
6749  *
6750  * Return codes
6751  *      0 - successful
6752  *      -ENOMEM - No available memory
6753  *      -EIO - The mailbox failed to complete successfully.
6754  **/
6755 static int
6756 lpfc_setup_endian_order(struct lpfc_hba *phba)
6757 {
6758         LPFC_MBOXQ_t *mboxq;
6759         uint32_t if_type, rc = 0;
6760         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6761                                       HOST_ENDIAN_HIGH_WORD1};
6762
6763         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6764         switch (if_type) {
6765         case LPFC_SLI_INTF_IF_TYPE_0:
6766                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6767                                                        GFP_KERNEL);
6768                 if (!mboxq) {
6769                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6770                                         "0492 Unable to allocate memory for "
6771                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6772                                         "command\n");
6773                         return -ENOMEM;
6774                 }
6775
6776                 /*
6777                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6778                  * two words to contain special data values and no other data.
6779                  */
6780                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6781                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6782                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6783                 if (rc != MBX_SUCCESS) {
6784                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6785                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6786                                         "failed with status x%x\n",
6787                                         rc);
6788                         rc = -EIO;
6789                 }
6790                 mempool_free(mboxq, phba->mbox_mem_pool);
6791                 break;
6792         case LPFC_SLI_INTF_IF_TYPE_2:
6793         case LPFC_SLI_INTF_IF_TYPE_1:
6794         default:
6795                 break;
6796         }
6797         return rc;
6798 }
6799
6800 /**
6801  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6802  * @phba: pointer to lpfc hba data structure.
6803  *
6804  * This routine is invoked to check the user settable queue counts for EQs and
6805  * CQs. after this routine is called the counts will be set to valid values that
6806  * adhere to the constraints of the system's interrupt vectors and the port's
6807  * queue resources.
6808  *
6809  * Return codes
6810  *      0 - successful
6811  *      -ENOMEM - No available memory
6812  **/
6813 static int
6814 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6815 {
6816         int cfg_fcp_io_channel;
6817         uint32_t cpu;
6818         uint32_t i = 0;
6819
6820         /*
6821          * Sanity check for configured queue parameters against the run-time
6822          * device parameters
6823          */
6824
6825         /* Sanity check on HBA EQ parameters */
6826         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6827
6828         /* It doesn't make sense to have more io channels then online CPUs */
6829         for_each_present_cpu(cpu) {
6830                 if (cpu_online(cpu))
6831                         i++;
6832         }
6833         phba->sli4_hba.num_online_cpu = i;
6834         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6835
6836         if (i < cfg_fcp_io_channel) {
6837                 lpfc_printf_log(phba,
6838                                 KERN_ERR, LOG_INIT,
6839                                 "3188 Reducing IO channels to match number of "
6840                                 "online CPUs: from %d to %d\n",
6841                                 cfg_fcp_io_channel, i);
6842                 cfg_fcp_io_channel = i;
6843         }
6844
6845         if (cfg_fcp_io_channel >
6846             phba->sli4_hba.max_cfg_param.max_eq) {
6847                 if (phba->sli4_hba.max_cfg_param.max_eq <
6848                     LPFC_FCP_IO_CHAN_MIN) {
6849                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6850                                         "2574 Not enough EQs (%d) from the "
6851                                         "pci function for supporting FCP "
6852                                         "EQs (%d)\n",
6853                                         phba->sli4_hba.max_cfg_param.max_eq,
6854                                         phba->cfg_fcp_io_channel);
6855                         goto out_error;
6856                 }
6857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6858                                 "2575 Reducing IO channels to match number of "
6859                                 "available EQs: from %d to %d\n",
6860                                 cfg_fcp_io_channel,
6861                                 phba->sli4_hba.max_cfg_param.max_eq);
6862                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6863         }
6864
6865         /* The actual number of FCP event queues adopted */
6866         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6867
6868         /* Get EQ depth from module parameter, fake the default for now */
6869         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6870         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6871
6872         /* Get CQ depth from module parameter, fake the default for now */
6873         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6874         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6875
6876         return 0;
6877 out_error:
6878         return -ENOMEM;
6879 }
6880
6881 /**
6882  * lpfc_sli4_queue_create - Create all the SLI4 queues
6883  * @phba: pointer to lpfc hba data structure.
6884  *
6885  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6886  * operation. For each SLI4 queue type, the parameters such as queue entry
6887  * count (queue depth) shall be taken from the module parameter. For now,
6888  * we just use some constant number as place holder.
6889  *
6890  * Return codes
6891  *      0 - successful
6892  *      -ENOMEM - No availble memory
6893  *      -EIO - The mailbox failed to complete successfully.
6894  **/
6895 int
6896 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6897 {
6898         struct lpfc_queue *qdesc;
6899         int idx;
6900
6901         /*
6902          * Create HBA Record arrays.
6903          */
6904         if (!phba->cfg_fcp_io_channel)
6905                 return -ERANGE;
6906
6907         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6908         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6909         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6910         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6911         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6912         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6913
6914         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6915                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6916         if (!phba->sli4_hba.hba_eq) {
6917                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6918                         "2576 Failed allocate memory for "
6919                         "fast-path EQ record array\n");
6920                 goto out_error;
6921         }
6922
6923         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6924                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6925         if (!phba->sli4_hba.fcp_cq) {
6926                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6927                                 "2577 Failed allocate memory for fast-path "
6928                                 "CQ record array\n");
6929                 goto out_error;
6930         }
6931
6932         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6933                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6934         if (!phba->sli4_hba.fcp_wq) {
6935                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6936                                 "2578 Failed allocate memory for fast-path "
6937                                 "WQ record array\n");
6938                 goto out_error;
6939         }
6940
6941         /*
6942          * Since the first EQ can have multiple CQs associated with it,
6943          * this array is used to quickly see if we have a FCP fast-path
6944          * CQ match.
6945          */
6946         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6947                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6948         if (!phba->sli4_hba.fcp_cq_map) {
6949                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6950                                 "2545 Failed allocate memory for fast-path "
6951                                 "CQ map\n");
6952                 goto out_error;
6953         }
6954
6955         /*
6956          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6957          * how many EQs to create.
6958          */
6959         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6960
6961                 /* Create EQs */
6962                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6963                                               phba->sli4_hba.eq_ecount);
6964                 if (!qdesc) {
6965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6966                                         "0497 Failed allocate EQ (%d)\n", idx);
6967                         goto out_error;
6968                 }
6969                 phba->sli4_hba.hba_eq[idx] = qdesc;
6970
6971                 /* Create Fast Path FCP CQs */
6972                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6973                                               phba->sli4_hba.cq_ecount);
6974                 if (!qdesc) {
6975                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6976                                         "0499 Failed allocate fast-path FCP "
6977                                         "CQ (%d)\n", idx);
6978                         goto out_error;
6979                 }
6980                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6981
6982                 /* Create Fast Path FCP WQs */
6983                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6984                                               phba->sli4_hba.wq_ecount);
6985                 if (!qdesc) {
6986                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6987                                         "0503 Failed allocate fast-path FCP "
6988                                         "WQ (%d)\n", idx);
6989                         goto out_error;
6990                 }
6991                 phba->sli4_hba.fcp_wq[idx] = qdesc;
6992         }
6993
6994
6995         /*
6996          * Create Slow Path Completion Queues (CQs)
6997          */
6998
6999         /* Create slow-path Mailbox Command Complete Queue */
7000         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7001                                       phba->sli4_hba.cq_ecount);
7002         if (!qdesc) {
7003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7004                                 "0500 Failed allocate slow-path mailbox CQ\n");
7005                 goto out_error;
7006         }
7007         phba->sli4_hba.mbx_cq = qdesc;
7008
7009         /* Create slow-path ELS Complete Queue */
7010         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7011                                       phba->sli4_hba.cq_ecount);
7012         if (!qdesc) {
7013                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7014                                 "0501 Failed allocate slow-path ELS CQ\n");
7015                 goto out_error;
7016         }
7017         phba->sli4_hba.els_cq = qdesc;
7018
7019
7020         /*
7021          * Create Slow Path Work Queues (WQs)
7022          */
7023
7024         /* Create Mailbox Command Queue */
7025
7026         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7027                                       phba->sli4_hba.mq_ecount);
7028         if (!qdesc) {
7029                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7030                                 "0505 Failed allocate slow-path MQ\n");
7031                 goto out_error;
7032         }
7033         phba->sli4_hba.mbx_wq = qdesc;
7034
7035         /*
7036          * Create ELS Work Queues
7037          */
7038
7039         /* Create slow-path ELS Work Queue */
7040         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7041                                       phba->sli4_hba.wq_ecount);
7042         if (!qdesc) {
7043                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7044                                 "0504 Failed allocate slow-path ELS WQ\n");
7045                 goto out_error;
7046         }
7047         phba->sli4_hba.els_wq = qdesc;
7048
7049         /*
7050          * Create Receive Queue (RQ)
7051          */
7052
7053         /* Create Receive Queue for header */
7054         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7055                                       phba->sli4_hba.rq_ecount);
7056         if (!qdesc) {
7057                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7058                                 "0506 Failed allocate receive HRQ\n");
7059                 goto out_error;
7060         }
7061         phba->sli4_hba.hdr_rq = qdesc;
7062
7063         /* Create Receive Queue for data */
7064         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7065                                       phba->sli4_hba.rq_ecount);
7066         if (!qdesc) {
7067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7068                                 "0507 Failed allocate receive DRQ\n");
7069                 goto out_error;
7070         }
7071         phba->sli4_hba.dat_rq = qdesc;
7072
7073         return 0;
7074
7075 out_error:
7076         lpfc_sli4_queue_destroy(phba);
7077         return -ENOMEM;
7078 }
7079
7080 /**
7081  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7082  * @phba: pointer to lpfc hba data structure.
7083  *
7084  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7085  * operation.
7086  *
7087  * Return codes
7088  *      0 - successful
7089  *      -ENOMEM - No available memory
7090  *      -EIO - The mailbox failed to complete successfully.
7091  **/
7092 void
7093 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7094 {
7095         int idx;
7096
7097         if (phba->sli4_hba.hba_eq != NULL) {
7098                 /* Release HBA event queue */
7099                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7100                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7101                                 lpfc_sli4_queue_free(
7102                                         phba->sli4_hba.hba_eq[idx]);
7103                                 phba->sli4_hba.hba_eq[idx] = NULL;
7104                         }
7105                 }
7106                 kfree(phba->sli4_hba.hba_eq);
7107                 phba->sli4_hba.hba_eq = NULL;
7108         }
7109
7110         if (phba->sli4_hba.fcp_cq != NULL) {
7111                 /* Release FCP completion queue */
7112                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7113                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7114                                 lpfc_sli4_queue_free(
7115                                         phba->sli4_hba.fcp_cq[idx]);
7116                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7117                         }
7118                 }
7119                 kfree(phba->sli4_hba.fcp_cq);
7120                 phba->sli4_hba.fcp_cq = NULL;
7121         }
7122
7123         if (phba->sli4_hba.fcp_wq != NULL) {
7124                 /* Release FCP work queue */
7125                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7126                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7127                                 lpfc_sli4_queue_free(
7128                                         phba->sli4_hba.fcp_wq[idx]);
7129                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7130                         }
7131                 }
7132                 kfree(phba->sli4_hba.fcp_wq);
7133                 phba->sli4_hba.fcp_wq = NULL;
7134         }
7135
7136         /* Release FCP CQ mapping array */
7137         if (phba->sli4_hba.fcp_cq_map != NULL) {
7138                 kfree(phba->sli4_hba.fcp_cq_map);
7139                 phba->sli4_hba.fcp_cq_map = NULL;
7140         }
7141
7142         /* Release mailbox command work queue */
7143         if (phba->sli4_hba.mbx_wq != NULL) {
7144                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7145                 phba->sli4_hba.mbx_wq = NULL;
7146         }
7147
7148         /* Release ELS work queue */
7149         if (phba->sli4_hba.els_wq != NULL) {
7150                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7151                 phba->sli4_hba.els_wq = NULL;
7152         }
7153
7154         /* Release unsolicited receive queue */
7155         if (phba->sli4_hba.hdr_rq != NULL) {
7156                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7157                 phba->sli4_hba.hdr_rq = NULL;
7158         }
7159         if (phba->sli4_hba.dat_rq != NULL) {
7160                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7161                 phba->sli4_hba.dat_rq = NULL;
7162         }
7163
7164         /* Release ELS complete queue */
7165         if (phba->sli4_hba.els_cq != NULL) {
7166                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7167                 phba->sli4_hba.els_cq = NULL;
7168         }
7169
7170         /* Release mailbox command complete queue */
7171         if (phba->sli4_hba.mbx_cq != NULL) {
7172                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7173                 phba->sli4_hba.mbx_cq = NULL;
7174         }
7175
7176         return;
7177 }
7178
7179 /**
7180  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7181  * @phba: pointer to lpfc hba data structure.
7182  *
7183  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7184  * operation.
7185  *
7186  * Return codes
7187  *      0 - successful
7188  *      -ENOMEM - No available memory
7189  *      -EIO - The mailbox failed to complete successfully.
7190  **/
7191 int
7192 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7193 {
7194         struct lpfc_sli *psli = &phba->sli;
7195         struct lpfc_sli_ring *pring;
7196         int rc = -ENOMEM;
7197         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7198         int fcp_cq_index = 0;
7199         uint32_t shdr_status, shdr_add_status;
7200         union lpfc_sli4_cfg_shdr *shdr;
7201         LPFC_MBOXQ_t *mboxq;
7202         uint32_t length;
7203
7204         /* Check for dual-ULP support */
7205         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7206         if (!mboxq) {
7207                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7208                                 "3249 Unable to allocate memory for "
7209                                 "QUERY_FW_CFG mailbox command\n");
7210                 return -ENOMEM;
7211         }
7212         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7213                   sizeof(struct lpfc_sli4_cfg_mhdr));
7214         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7215                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7216                          length, LPFC_SLI4_MBX_EMBED);
7217
7218         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7219
7220         shdr = (union lpfc_sli4_cfg_shdr *)
7221                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7222         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7223         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7224         if (shdr_status || shdr_add_status || rc) {
7225                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7226                                 "3250 QUERY_FW_CFG mailbox failed with status "
7227                                 "x%x add_status x%x, mbx status x%x\n",
7228                                 shdr_status, shdr_add_status, rc);
7229                 if (rc != MBX_TIMEOUT)
7230                         mempool_free(mboxq, phba->mbox_mem_pool);
7231                 rc = -ENXIO;
7232                 goto out_error;
7233         }
7234
7235         phba->sli4_hba.fw_func_mode =
7236                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7237         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7238         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7239         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7240                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7241                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7242                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7243
7244         if (rc != MBX_TIMEOUT)
7245                 mempool_free(mboxq, phba->mbox_mem_pool);
7246
7247         /*
7248          * Set up HBA Event Queues (EQs)
7249          */
7250
7251         /* Set up HBA event queue */
7252         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7254                                 "3147 Fast-path EQs not allocated\n");
7255                 rc = -ENOMEM;
7256                 goto out_error;
7257         }
7258         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7259                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7260                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7261                                         "0522 Fast-path EQ (%d) not "
7262                                         "allocated\n", fcp_eqidx);
7263                         rc = -ENOMEM;
7264                         goto out_destroy_hba_eq;
7265                 }
7266                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7267                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7268                 if (rc) {
7269                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7270                                         "0523 Failed setup of fast-path EQ "
7271                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7272                         goto out_destroy_hba_eq;
7273                 }
7274                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7275                                 "2584 HBA EQ setup: "
7276                                 "queue[%d]-id=%d\n", fcp_eqidx,
7277                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7278         }
7279
7280         /* Set up fast-path FCP Response Complete Queue */
7281         if (!phba->sli4_hba.fcp_cq) {
7282                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7283                                 "3148 Fast-path FCP CQ array not "
7284                                 "allocated\n");
7285                 rc = -ENOMEM;
7286                 goto out_destroy_hba_eq;
7287         }
7288
7289         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7290                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7291                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7292                                         "0526 Fast-path FCP CQ (%d) not "
7293                                         "allocated\n", fcp_cqidx);
7294                         rc = -ENOMEM;
7295                         goto out_destroy_fcp_cq;
7296                 }
7297                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7298                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7299                 if (rc) {
7300                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7301                                         "0527 Failed setup of fast-path FCP "
7302                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7303                         goto out_destroy_fcp_cq;
7304                 }
7305
7306                 /* Setup fcp_cq_map for fast lookup */
7307                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7308                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7309
7310                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7311                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7312                                 "parent seq[%d]-id=%d\n",
7313                                 fcp_cqidx,
7314                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7315                                 fcp_cqidx,
7316                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7317         }
7318
7319         /* Set up fast-path FCP Work Queue */
7320         if (!phba->sli4_hba.fcp_wq) {
7321                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7322                                 "3149 Fast-path FCP WQ array not "
7323                                 "allocated\n");
7324                 rc = -ENOMEM;
7325                 goto out_destroy_fcp_cq;
7326         }
7327
7328         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7329                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7330                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7331                                         "0534 Fast-path FCP WQ (%d) not "
7332                                         "allocated\n", fcp_wqidx);
7333                         rc = -ENOMEM;
7334                         goto out_destroy_fcp_wq;
7335                 }
7336                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7337                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7338                                     LPFC_FCP);
7339                 if (rc) {
7340                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7341                                         "0535 Failed setup of fast-path FCP "
7342                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7343                         goto out_destroy_fcp_wq;
7344                 }
7345
7346                 /* Bind this WQ to the next FCP ring */
7347                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7348                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7349                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7350
7351                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7352                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7353                                 "parent cq[%d]-id=%d\n",
7354                                 fcp_wqidx,
7355                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7356                                 fcp_cq_index,
7357                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7358         }
7359         /*
7360          * Set up Complete Queues (CQs)
7361          */
7362
7363         /* Set up slow-path MBOX Complete Queue as the first CQ */
7364         if (!phba->sli4_hba.mbx_cq) {
7365                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7366                                 "0528 Mailbox CQ not allocated\n");
7367                 rc = -ENOMEM;
7368                 goto out_destroy_fcp_wq;
7369         }
7370         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7371                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7372         if (rc) {
7373                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7374                                 "0529 Failed setup of slow-path mailbox CQ: "
7375                                 "rc = 0x%x\n", rc);
7376                 goto out_destroy_fcp_wq;
7377         }
7378         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7379                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7380                         phba->sli4_hba.mbx_cq->queue_id,
7381                         phba->sli4_hba.hba_eq[0]->queue_id);
7382
7383         /* Set up slow-path ELS Complete Queue */
7384         if (!phba->sli4_hba.els_cq) {
7385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7386                                 "0530 ELS CQ not allocated\n");
7387                 rc = -ENOMEM;
7388                 goto out_destroy_mbx_cq;
7389         }
7390         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7391                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7392         if (rc) {
7393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7394                                 "0531 Failed setup of slow-path ELS CQ: "
7395                                 "rc = 0x%x\n", rc);
7396                 goto out_destroy_mbx_cq;
7397         }
7398         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7399                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7400                         phba->sli4_hba.els_cq->queue_id,
7401                         phba->sli4_hba.hba_eq[0]->queue_id);
7402
7403         /*
7404          * Set up all the Work Queues (WQs)
7405          */
7406
7407         /* Set up Mailbox Command Queue */
7408         if (!phba->sli4_hba.mbx_wq) {
7409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7410                                 "0538 Slow-path MQ not allocated\n");
7411                 rc = -ENOMEM;
7412                 goto out_destroy_els_cq;
7413         }
7414         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7415                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7416         if (rc) {
7417                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7418                                 "0539 Failed setup of slow-path MQ: "
7419                                 "rc = 0x%x\n", rc);
7420                 goto out_destroy_els_cq;
7421         }
7422         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7423                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7424                         phba->sli4_hba.mbx_wq->queue_id,
7425                         phba->sli4_hba.mbx_cq->queue_id);
7426
7427         /* Set up slow-path ELS Work Queue */
7428         if (!phba->sli4_hba.els_wq) {
7429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7430                                 "0536 Slow-path ELS WQ not allocated\n");
7431                 rc = -ENOMEM;
7432                 goto out_destroy_mbx_wq;
7433         }
7434         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7435                             phba->sli4_hba.els_cq, LPFC_ELS);
7436         if (rc) {
7437                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438                                 "0537 Failed setup of slow-path ELS WQ: "
7439                                 "rc = 0x%x\n", rc);
7440                 goto out_destroy_mbx_wq;
7441         }
7442
7443         /* Bind this WQ to the ELS ring */
7444         pring = &psli->ring[LPFC_ELS_RING];
7445         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7446         phba->sli4_hba.els_cq->pring = pring;
7447
7448         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7449                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7450                         phba->sli4_hba.els_wq->queue_id,
7451                         phba->sli4_hba.els_cq->queue_id);
7452
7453         /*
7454          * Create Receive Queue (RQ)
7455          */
7456         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7458                                 "0540 Receive Queue not allocated\n");
7459                 rc = -ENOMEM;
7460                 goto out_destroy_els_wq;
7461         }
7462
7463         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7464         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7465
7466         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7467                             phba->sli4_hba.els_cq, LPFC_USOL);
7468         if (rc) {
7469                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7470                                 "0541 Failed setup of Receive Queue: "
7471                                 "rc = 0x%x\n", rc);
7472                 goto out_destroy_fcp_wq;
7473         }
7474
7475         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7476                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7477                         "parent cq-id=%d\n",
7478                         phba->sli4_hba.hdr_rq->queue_id,
7479                         phba->sli4_hba.dat_rq->queue_id,
7480                         phba->sli4_hba.els_cq->queue_id);
7481         return 0;
7482
7483 out_destroy_els_wq:
7484         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7485 out_destroy_mbx_wq:
7486         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7487 out_destroy_els_cq:
7488         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7489 out_destroy_mbx_cq:
7490         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7491 out_destroy_fcp_wq:
7492         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7493                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7494 out_destroy_fcp_cq:
7495         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7496                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7497 out_destroy_hba_eq:
7498         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7499                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7500 out_error:
7501         return rc;
7502 }
7503
7504 /**
7505  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7506  * @phba: pointer to lpfc hba data structure.
7507  *
7508  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7509  * operation.
7510  *
7511  * Return codes
7512  *      0 - successful
7513  *      -ENOMEM - No available memory
7514  *      -EIO - The mailbox failed to complete successfully.
7515  **/
7516 void
7517 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7518 {
7519         int fcp_qidx;
7520
7521         /* Unset mailbox command work queue */
7522         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7523         /* Unset ELS work queue */
7524         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7525         /* Unset unsolicited receive queue */
7526         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7527         /* Unset FCP work queue */
7528         if (phba->sli4_hba.fcp_wq) {
7529                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7530                      fcp_qidx++)
7531                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7532         }
7533         /* Unset mailbox command complete queue */
7534         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7535         /* Unset ELS complete queue */
7536         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7537         /* Unset FCP response complete queue */
7538         if (phba->sli4_hba.fcp_cq) {
7539                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7540                      fcp_qidx++)
7541                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7542         }
7543         /* Unset fast-path event queue */
7544         if (phba->sli4_hba.hba_eq) {
7545                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7546                      fcp_qidx++)
7547                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7548         }
7549 }
7550
7551 /**
7552  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7553  * @phba: pointer to lpfc hba data structure.
7554  *
7555  * This routine is invoked to allocate and set up a pool of completion queue
7556  * events. The body of the completion queue event is a completion queue entry
7557  * CQE. For now, this pool is used for the interrupt service routine to queue
7558  * the following HBA completion queue events for the worker thread to process:
7559  *   - Mailbox asynchronous events
7560  *   - Receive queue completion unsolicited events
7561  * Later, this can be used for all the slow-path events.
7562  *
7563  * Return codes
7564  *      0 - successful
7565  *      -ENOMEM - No available memory
7566  **/
7567 static int
7568 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7569 {
7570         struct lpfc_cq_event *cq_event;
7571         int i;
7572
7573         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7574                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7575                 if (!cq_event)
7576                         goto out_pool_create_fail;
7577                 list_add_tail(&cq_event->list,
7578                               &phba->sli4_hba.sp_cqe_event_pool);
7579         }
7580         return 0;
7581
7582 out_pool_create_fail:
7583         lpfc_sli4_cq_event_pool_destroy(phba);
7584         return -ENOMEM;
7585 }
7586
7587 /**
7588  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7589  * @phba: pointer to lpfc hba data structure.
7590  *
7591  * This routine is invoked to free the pool of completion queue events at
7592  * driver unload time. Note that, it is the responsibility of the driver
7593  * cleanup routine to free all the outstanding completion-queue events
7594  * allocated from this pool back into the pool before invoking this routine
7595  * to destroy the pool.
7596  **/
7597 static void
7598 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7599 {
7600         struct lpfc_cq_event *cq_event, *next_cq_event;
7601
7602         list_for_each_entry_safe(cq_event, next_cq_event,
7603                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7604                 list_del(&cq_event->list);
7605                 kfree(cq_event);
7606         }
7607 }
7608
7609 /**
7610  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7611  * @phba: pointer to lpfc hba data structure.
7612  *
7613  * This routine is the lock free version of the API invoked to allocate a
7614  * completion-queue event from the free pool.
7615  *
7616  * Return: Pointer to the newly allocated completion-queue event if successful
7617  *         NULL otherwise.
7618  **/
7619 struct lpfc_cq_event *
7620 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7621 {
7622         struct lpfc_cq_event *cq_event = NULL;
7623
7624         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7625                          struct lpfc_cq_event, list);
7626         return cq_event;
7627 }
7628
7629 /**
7630  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7631  * @phba: pointer to lpfc hba data structure.
7632  *
7633  * This routine is the lock version of the API invoked to allocate a
7634  * completion-queue event from the free pool.
7635  *
7636  * Return: Pointer to the newly allocated completion-queue event if successful
7637  *         NULL otherwise.
7638  **/
7639 struct lpfc_cq_event *
7640 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7641 {
7642         struct lpfc_cq_event *cq_event;
7643         unsigned long iflags;
7644
7645         spin_lock_irqsave(&phba->hbalock, iflags);
7646         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7647         spin_unlock_irqrestore(&phba->hbalock, iflags);
7648         return cq_event;
7649 }
7650
7651 /**
7652  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7653  * @phba: pointer to lpfc hba data structure.
7654  * @cq_event: pointer to the completion queue event to be freed.
7655  *
7656  * This routine is the lock free version of the API invoked to release a
7657  * completion-queue event back into the free pool.
7658  **/
7659 void
7660 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7661                              struct lpfc_cq_event *cq_event)
7662 {
7663         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7664 }
7665
7666 /**
7667  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7668  * @phba: pointer to lpfc hba data structure.
7669  * @cq_event: pointer to the completion queue event to be freed.
7670  *
7671  * This routine is the lock version of the API invoked to release a
7672  * completion-queue event back into the free pool.
7673  **/
7674 void
7675 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7676                            struct lpfc_cq_event *cq_event)
7677 {
7678         unsigned long iflags;
7679         spin_lock_irqsave(&phba->hbalock, iflags);
7680         __lpfc_sli4_cq_event_release(phba, cq_event);
7681         spin_unlock_irqrestore(&phba->hbalock, iflags);
7682 }
7683
7684 /**
7685  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7686  * @phba: pointer to lpfc hba data structure.
7687  *
7688  * This routine is to free all the pending completion-queue events to the
7689  * back into the free pool for device reset.
7690  **/
7691 static void
7692 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7693 {
7694         LIST_HEAD(cqelist);
7695         struct lpfc_cq_event *cqe;
7696         unsigned long iflags;
7697
7698         /* Retrieve all the pending WCQEs from pending WCQE lists */
7699         spin_lock_irqsave(&phba->hbalock, iflags);
7700         /* Pending FCP XRI abort events */
7701         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7702                          &cqelist);
7703         /* Pending ELS XRI abort events */
7704         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7705                          &cqelist);
7706         /* Pending asynnc events */
7707         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7708                          &cqelist);
7709         spin_unlock_irqrestore(&phba->hbalock, iflags);
7710
7711         while (!list_empty(&cqelist)) {
7712                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7713                 lpfc_sli4_cq_event_release(phba, cqe);
7714         }
7715 }
7716
7717 /**
7718  * lpfc_pci_function_reset - Reset pci function.
7719  * @phba: pointer to lpfc hba data structure.
7720  *
7721  * This routine is invoked to request a PCI function reset. It will destroys
7722  * all resources assigned to the PCI function which originates this request.
7723  *
7724  * Return codes
7725  *      0 - successful
7726  *      -ENOMEM - No available memory
7727  *      -EIO - The mailbox failed to complete successfully.
7728  **/
7729 int
7730 lpfc_pci_function_reset(struct lpfc_hba *phba)
7731 {
7732         LPFC_MBOXQ_t *mboxq;
7733         uint32_t rc = 0, if_type;
7734         uint32_t shdr_status, shdr_add_status;
7735         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7736         union lpfc_sli4_cfg_shdr *shdr;
7737         struct lpfc_register reg_data;
7738         uint16_t devid;
7739
7740         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7741         switch (if_type) {
7742         case LPFC_SLI_INTF_IF_TYPE_0:
7743                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7744                                                        GFP_KERNEL);
7745                 if (!mboxq) {
7746                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7747                                         "0494 Unable to allocate memory for "
7748                                         "issuing SLI_FUNCTION_RESET mailbox "
7749                                         "command\n");
7750                         return -ENOMEM;
7751                 }
7752
7753                 /* Setup PCI function reset mailbox-ioctl command */
7754                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7755                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7756                                  LPFC_SLI4_MBX_EMBED);
7757                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7758                 shdr = (union lpfc_sli4_cfg_shdr *)
7759                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7760                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7761                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7762                                          &shdr->response);
7763                 if (rc != MBX_TIMEOUT)
7764                         mempool_free(mboxq, phba->mbox_mem_pool);
7765                 if (shdr_status || shdr_add_status || rc) {
7766                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7767                                         "0495 SLI_FUNCTION_RESET mailbox "
7768                                         "failed with status x%x add_status x%x,"
7769                                         " mbx status x%x\n",
7770                                         shdr_status, shdr_add_status, rc);
7771                         rc = -ENXIO;
7772                 }
7773                 break;
7774         case LPFC_SLI_INTF_IF_TYPE_2:
7775                 for (num_resets = 0;
7776                      num_resets < MAX_IF_TYPE_2_RESETS;
7777                      num_resets++) {
7778                         reg_data.word0 = 0;
7779                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7780                                LPFC_SLIPORT_LITTLE_ENDIAN);
7781                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7782                                LPFC_SLIPORT_INIT_PORT);
7783                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7784                                CTRLregaddr);
7785                         /* flush */
7786                         pci_read_config_word(phba->pcidev,
7787                                              PCI_DEVICE_ID, &devid);
7788                         /*
7789                          * Poll the Port Status Register and wait for RDY for
7790                          * up to 10 seconds.  If the port doesn't respond, treat
7791                          * it as an error.  If the port responds with RN, start
7792                          * the loop again.
7793                          */
7794                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7795                                 msleep(10);
7796                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7797                                               STATUSregaddr, &reg_data.word0)) {
7798                                         rc = -ENODEV;
7799                                         goto out;
7800                                 }
7801                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7802                                         reset_again++;
7803                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7804                                         break;
7805                         }
7806
7807                         /*
7808                          * If the port responds to the init request with
7809                          * reset needed, delay for a bit and restart the loop.
7810                          */
7811                         if (reset_again && (rdy_chk < 1000)) {
7812                                 msleep(10);
7813                                 reset_again = 0;
7814                                 continue;
7815                         }
7816
7817                         /* Detect any port errors. */
7818                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7819                             (rdy_chk >= 1000)) {
7820                                 phba->work_status[0] = readl(
7821                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7822                                 phba->work_status[1] = readl(
7823                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7824                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7825                                         "2890 Port error detected during port "
7826                                         "reset(%d): wait_tmo:%d ms, "
7827                                         "port status reg 0x%x, "
7828                                         "error 1=0x%x, error 2=0x%x\n",
7829                                         num_resets, rdy_chk*10,
7830                                         reg_data.word0,
7831                                         phba->work_status[0],
7832                                         phba->work_status[1]);
7833                                 rc = -ENODEV;
7834                         }
7835
7836                         /*
7837                          * Terminate the outer loop provided the Port indicated
7838                          * ready within 10 seconds.
7839                          */
7840                         if (rdy_chk < 1000)
7841                                 break;
7842                 }
7843                 /* delay driver action following IF_TYPE_2 function reset */
7844                 msleep(100);
7845                 break;
7846         case LPFC_SLI_INTF_IF_TYPE_1:
7847         default:
7848                 break;
7849         }
7850
7851 out:
7852         /* Catch the not-ready port failure after a port reset. */
7853         if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7854                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7855                                 "3317 HBA not functional: IP Reset Failed "
7856                                 "after (%d) retries, try: "
7857                                 "echo fw_reset > board_mode\n", num_resets);
7858                 rc = -ENODEV;
7859         }
7860
7861         return rc;
7862 }
7863
7864 /**
7865  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7866  * @phba: pointer to lpfc hba data structure.
7867  *
7868  * This routine is invoked to set up the PCI device memory space for device
7869  * with SLI-4 interface spec.
7870  *
7871  * Return codes
7872  *      0 - successful
7873  *      other values - error
7874  **/
7875 static int
7876 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7877 {
7878         struct pci_dev *pdev;
7879         unsigned long bar0map_len, bar1map_len, bar2map_len;
7880         int error = -ENODEV;
7881         uint32_t if_type;
7882
7883         /* Obtain PCI device reference */
7884         if (!phba->pcidev)
7885                 return error;
7886         else
7887                 pdev = phba->pcidev;
7888
7889         /* Set the device DMA mask size */
7890         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7891          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7892                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7893                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7894                         return error;
7895                 }
7896         }
7897
7898         /*
7899          * The BARs and register set definitions and offset locations are
7900          * dependent on the if_type.
7901          */
7902         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7903                                   &phba->sli4_hba.sli_intf.word0)) {
7904                 return error;
7905         }
7906
7907         /* There is no SLI3 failback for SLI4 devices. */
7908         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7909             LPFC_SLI_INTF_VALID) {
7910                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7911                                 "2894 SLI_INTF reg contents invalid "
7912                                 "sli_intf reg 0x%x\n",
7913                                 phba->sli4_hba.sli_intf.word0);
7914                 return error;
7915         }
7916
7917         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7918         /*
7919          * Get the bus address of SLI4 device Bar regions and the
7920          * number of bytes required by each mapping. The mapping of the
7921          * particular PCI BARs regions is dependent on the type of
7922          * SLI4 device.
7923          */
7924         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
7925                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
7926                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
7927
7928                 /*
7929                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7930                  * addr
7931                  */
7932                 phba->sli4_hba.conf_regs_memmap_p =
7933                         ioremap(phba->pci_bar0_map, bar0map_len);
7934                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7935                         dev_printk(KERN_ERR, &pdev->dev,
7936                                    "ioremap failed for SLI4 PCI config "
7937                                    "registers.\n");
7938                         goto out;
7939                 }
7940                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
7941                 /* Set up BAR0 PCI config space register memory map */
7942                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7943         } else {
7944                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7945                 bar0map_len = pci_resource_len(pdev, 1);
7946                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7947                         dev_printk(KERN_ERR, &pdev->dev,
7948                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7949                         goto out;
7950                 }
7951                 phba->sli4_hba.conf_regs_memmap_p =
7952                                 ioremap(phba->pci_bar0_map, bar0map_len);
7953                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7954                         dev_printk(KERN_ERR, &pdev->dev,
7955                                 "ioremap failed for SLI4 PCI config "
7956                                 "registers.\n");
7957                                 goto out;
7958                 }
7959                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7960         }
7961
7962         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7963             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
7964                 /*
7965                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7966                  * virtual address and setup the registers.
7967                  */
7968                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
7969                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
7970                 phba->sli4_hba.ctrl_regs_memmap_p =
7971                                 ioremap(phba->pci_bar1_map, bar1map_len);
7972                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7973                         dev_printk(KERN_ERR, &pdev->dev,
7974                            "ioremap failed for SLI4 HBA control registers.\n");
7975                         goto out_iounmap_conf;
7976                 }
7977                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
7978                 lpfc_sli4_bar1_register_memmap(phba);
7979         }
7980
7981         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7982             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
7983                 /*
7984                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7985                  * virtual address and setup the registers.
7986                  */
7987                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
7988                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
7989                 phba->sli4_hba.drbl_regs_memmap_p =
7990                                 ioremap(phba->pci_bar2_map, bar2map_len);
7991                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7992                         dev_printk(KERN_ERR, &pdev->dev,
7993                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7994                         goto out_iounmap_ctrl;
7995                 }
7996                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
7997                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7998                 if (error)
7999                         goto out_iounmap_all;
8000         }
8001
8002         return 0;
8003
8004 out_iounmap_all:
8005         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8006 out_iounmap_ctrl:
8007         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8008 out_iounmap_conf:
8009         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8010 out:
8011         return error;
8012 }
8013
8014 /**
8015  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8016  * @phba: pointer to lpfc hba data structure.
8017  *
8018  * This routine is invoked to unset the PCI device memory space for device
8019  * with SLI-4 interface spec.
8020  **/
8021 static void
8022 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8023 {
8024         uint32_t if_type;
8025         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8026
8027         switch (if_type) {
8028         case LPFC_SLI_INTF_IF_TYPE_0:
8029                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8030                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8031                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8032                 break;
8033         case LPFC_SLI_INTF_IF_TYPE_2:
8034                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8035                 break;
8036         case LPFC_SLI_INTF_IF_TYPE_1:
8037         default:
8038                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8039                            "FATAL - unsupported SLI4 interface type - %d\n",
8040                            if_type);
8041                 break;
8042         }
8043 }
8044
8045 /**
8046  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8047  * @phba: pointer to lpfc hba data structure.
8048  *
8049  * This routine is invoked to enable the MSI-X interrupt vectors to device
8050  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8051  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8052  * invoked, enables either all or nothing, depending on the current
8053  * availability of PCI vector resources. The device driver is responsible
8054  * for calling the individual request_irq() to register each MSI-X vector
8055  * with a interrupt handler, which is done in this function. Note that
8056  * later when device is unloading, the driver should always call free_irq()
8057  * on all MSI-X vectors it has done request_irq() on before calling
8058  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8059  * will be left with MSI-X enabled and leaks its vectors.
8060  *
8061  * Return codes
8062  *   0 - successful
8063  *   other values - error
8064  **/
8065 static int
8066 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8067 {
8068         int rc, i;
8069         LPFC_MBOXQ_t *pmb;
8070
8071         /* Set up MSI-X multi-message vectors */
8072         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8073                 phba->msix_entries[i].entry = i;
8074
8075         /* Configure MSI-X capability structure */
8076         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8077                                 ARRAY_SIZE(phba->msix_entries));
8078         if (rc) {
8079                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8080                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8081                 goto msi_fail_out;
8082         }
8083         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8084                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8085                                 "0477 MSI-X entry[%d]: vector=x%x "
8086                                 "message=%d\n", i,
8087                                 phba->msix_entries[i].vector,
8088                                 phba->msix_entries[i].entry);
8089         /*
8090          * Assign MSI-X vectors to interrupt handlers
8091          */
8092
8093         /* vector-0 is associated to slow-path handler */
8094         rc = request_irq(phba->msix_entries[0].vector,
8095                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8096                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8097         if (rc) {
8098                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8099                                 "0421 MSI-X slow-path request_irq failed "
8100                                 "(%d)\n", rc);
8101                 goto msi_fail_out;
8102         }
8103
8104         /* vector-1 is associated to fast-path handler */
8105         rc = request_irq(phba->msix_entries[1].vector,
8106                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8107                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8108
8109         if (rc) {
8110                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8111                                 "0429 MSI-X fast-path request_irq failed "
8112                                 "(%d)\n", rc);
8113                 goto irq_fail_out;
8114         }
8115
8116         /*
8117          * Configure HBA MSI-X attention conditions to messages
8118          */
8119         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8120
8121         if (!pmb) {
8122                 rc = -ENOMEM;
8123                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8124                                 "0474 Unable to allocate memory for issuing "
8125                                 "MBOX_CONFIG_MSI command\n");
8126                 goto mem_fail_out;
8127         }
8128         rc = lpfc_config_msi(phba, pmb);
8129         if (rc)
8130                 goto mbx_fail_out;
8131         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8132         if (rc != MBX_SUCCESS) {
8133                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8134                                 "0351 Config MSI mailbox command failed, "
8135                                 "mbxCmd x%x, mbxStatus x%x\n",
8136                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8137                 goto mbx_fail_out;
8138         }
8139
8140         /* Free memory allocated for mailbox command */
8141         mempool_free(pmb, phba->mbox_mem_pool);
8142         return rc;
8143
8144 mbx_fail_out:
8145         /* Free memory allocated for mailbox command */
8146         mempool_free(pmb, phba->mbox_mem_pool);
8147
8148 mem_fail_out:
8149         /* free the irq already requested */
8150         free_irq(phba->msix_entries[1].vector, phba);
8151
8152 irq_fail_out:
8153         /* free the irq already requested */
8154         free_irq(phba->msix_entries[0].vector, phba);
8155
8156 msi_fail_out:
8157         /* Unconfigure MSI-X capability structure */
8158         pci_disable_msix(phba->pcidev);
8159         return rc;
8160 }
8161
8162 /**
8163  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8164  * @phba: pointer to lpfc hba data structure.
8165  *
8166  * This routine is invoked to release the MSI-X vectors and then disable the
8167  * MSI-X interrupt mode to device with SLI-3 interface spec.
8168  **/
8169 static void
8170 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8171 {
8172         int i;
8173
8174         /* Free up MSI-X multi-message vectors */
8175         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8176                 free_irq(phba->msix_entries[i].vector, phba);
8177         /* Disable MSI-X */
8178         pci_disable_msix(phba->pcidev);
8179
8180         return;
8181 }
8182
8183 /**
8184  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8185  * @phba: pointer to lpfc hba data structure.
8186  *
8187  * This routine is invoked to enable the MSI interrupt mode to device with
8188  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8189  * enable the MSI vector. The device driver is responsible for calling the
8190  * request_irq() to register MSI vector with a interrupt the handler, which
8191  * is done in this function.
8192  *
8193  * Return codes
8194  *      0 - successful
8195  *      other values - error
8196  */
8197 static int
8198 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8199 {
8200         int rc;
8201
8202         rc = pci_enable_msi(phba->pcidev);
8203         if (!rc)
8204                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8205                                 "0462 PCI enable MSI mode success.\n");
8206         else {
8207                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8208                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8209                 return rc;
8210         }
8211
8212         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8213                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8214         if (rc) {
8215                 pci_disable_msi(phba->pcidev);
8216                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8217                                 "0478 MSI request_irq failed (%d)\n", rc);
8218         }
8219         return rc;
8220 }
8221
8222 /**
8223  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8224  * @phba: pointer to lpfc hba data structure.
8225  *
8226  * This routine is invoked to disable the MSI interrupt mode to device with
8227  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8228  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8229  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8230  * its vector.
8231  */
8232 static void
8233 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8234 {
8235         free_irq(phba->pcidev->irq, phba);
8236         pci_disable_msi(phba->pcidev);
8237         return;
8238 }
8239
8240 /**
8241  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8242  * @phba: pointer to lpfc hba data structure.
8243  *
8244  * This routine is invoked to enable device interrupt and associate driver's
8245  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8246  * spec. Depends on the interrupt mode configured to the driver, the driver
8247  * will try to fallback from the configured interrupt mode to an interrupt
8248  * mode which is supported by the platform, kernel, and device in the order
8249  * of:
8250  * MSI-X -> MSI -> IRQ.
8251  *
8252  * Return codes
8253  *   0 - successful
8254  *   other values - error
8255  **/
8256 static uint32_t
8257 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8258 {
8259         uint32_t intr_mode = LPFC_INTR_ERROR;
8260         int retval;
8261
8262         if (cfg_mode == 2) {
8263                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8264                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8265                 if (!retval) {
8266                         /* Now, try to enable MSI-X interrupt mode */
8267                         retval = lpfc_sli_enable_msix(phba);
8268                         if (!retval) {
8269                                 /* Indicate initialization to MSI-X mode */
8270                                 phba->intr_type = MSIX;
8271                                 intr_mode = 2;
8272                         }
8273                 }
8274         }
8275
8276         /* Fallback to MSI if MSI-X initialization failed */
8277         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8278                 retval = lpfc_sli_enable_msi(phba);
8279                 if (!retval) {
8280                         /* Indicate initialization to MSI mode */
8281                         phba->intr_type = MSI;
8282                         intr_mode = 1;
8283                 }
8284         }
8285
8286         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8287         if (phba->intr_type == NONE) {
8288                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8289                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8290                 if (!retval) {
8291                         /* Indicate initialization to INTx mode */
8292                         phba->intr_type = INTx;
8293                         intr_mode = 0;
8294                 }
8295         }
8296         return intr_mode;
8297 }
8298
8299 /**
8300  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8301  * @phba: pointer to lpfc hba data structure.
8302  *
8303  * This routine is invoked to disable device interrupt and disassociate the
8304  * driver's interrupt handler(s) from interrupt vector(s) to device with
8305  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8306  * release the interrupt vector(s) for the message signaled interrupt.
8307  **/
8308 static void
8309 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8310 {
8311         /* Disable the currently initialized interrupt mode */
8312         if (phba->intr_type == MSIX)
8313                 lpfc_sli_disable_msix(phba);
8314         else if (phba->intr_type == MSI)
8315                 lpfc_sli_disable_msi(phba);
8316         else if (phba->intr_type == INTx)
8317                 free_irq(phba->pcidev->irq, phba);
8318
8319         /* Reset interrupt management states */
8320         phba->intr_type = NONE;
8321         phba->sli.slistat.sli_intr = 0;
8322
8323         return;
8324 }
8325
8326 /**
8327  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8328  * @phba: pointer to lpfc hba data structure.
8329  *
8330  * Find next available CPU to use for IRQ to CPU affinity.
8331  */
8332 static int
8333 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8334 {
8335         struct lpfc_vector_map_info *cpup;
8336         int cpu;
8337
8338         cpup = phba->sli4_hba.cpu_map;
8339         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8340                 /* CPU must be online */
8341                 if (cpu_online(cpu)) {
8342                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8343                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8344                             (cpup->phys_id == phys_id)) {
8345                                 return cpu;
8346                         }
8347                 }
8348                 cpup++;
8349         }
8350
8351         /*
8352          * If we get here, we have used ALL CPUs for the specific
8353          * phys_id. Now we need to clear out lpfc_used_cpu and start
8354          * reusing CPUs.
8355          */
8356
8357         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8358                 if (lpfc_used_cpu[cpu] == phys_id)
8359                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8360         }
8361
8362         cpup = phba->sli4_hba.cpu_map;
8363         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8364                 /* CPU must be online */
8365                 if (cpu_online(cpu)) {
8366                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8367                             (cpup->phys_id == phys_id)) {
8368                                 return cpu;
8369                         }
8370                 }
8371                 cpup++;
8372         }
8373         return LPFC_VECTOR_MAP_EMPTY;
8374 }
8375
8376 /**
8377  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8378  * @phba:       pointer to lpfc hba data structure.
8379  * @vectors:    number of HBA vectors
8380  *
8381  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8382  * affinization across multple physical CPUs (numa nodes).
8383  * In addition, this routine will assign an IO channel for each CPU
8384  * to use when issuing I/Os.
8385  */
8386 static int
8387 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8388 {
8389         int i, idx, saved_chann, used_chann, cpu, phys_id;
8390         int max_phys_id, min_phys_id;
8391         int num_io_channel, first_cpu, chan;
8392         struct lpfc_vector_map_info *cpup;
8393 #ifdef CONFIG_X86
8394         struct cpuinfo_x86 *cpuinfo;
8395 #endif
8396         struct cpumask *mask;
8397         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8398
8399         /* If there is no mapping, just return */
8400         if (!phba->cfg_fcp_cpu_map)
8401                 return 1;
8402
8403         /* Init cpu_map array */
8404         memset(phba->sli4_hba.cpu_map, 0xff,
8405                (sizeof(struct lpfc_vector_map_info) *
8406                 phba->sli4_hba.num_present_cpu));
8407
8408         max_phys_id = 0;
8409         min_phys_id = 0xff;
8410         phys_id = 0;
8411         num_io_channel = 0;
8412         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8413
8414         /* Update CPU map with physical id and core id of each CPU */
8415         cpup = phba->sli4_hba.cpu_map;
8416         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8417 #ifdef CONFIG_X86
8418                 cpuinfo = &cpu_data(cpu);
8419                 cpup->phys_id = cpuinfo->phys_proc_id;
8420                 cpup->core_id = cpuinfo->cpu_core_id;
8421 #else
8422                 /* No distinction between CPUs for other platforms */
8423                 cpup->phys_id = 0;
8424                 cpup->core_id = 0;
8425 #endif
8426
8427                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8428                                 "3328 CPU physid %d coreid %d\n",
8429                                 cpup->phys_id, cpup->core_id);
8430
8431                 if (cpup->phys_id > max_phys_id)
8432                         max_phys_id = cpup->phys_id;
8433                 if (cpup->phys_id < min_phys_id)
8434                         min_phys_id = cpup->phys_id;
8435                 cpup++;
8436         }
8437
8438         phys_id = min_phys_id;
8439         /* Now associate the HBA vectors with specific CPUs */
8440         for (idx = 0; idx < vectors; idx++) {
8441                 cpup = phba->sli4_hba.cpu_map;
8442                 cpu = lpfc_find_next_cpu(phba, phys_id);
8443                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8444
8445                         /* Try for all phys_id's */
8446                         for (i = 1; i < max_phys_id; i++) {
8447                                 phys_id++;
8448                                 if (phys_id > max_phys_id)
8449                                         phys_id = min_phys_id;
8450                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8451                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8452                                         continue;
8453                                 goto found;
8454                         }
8455
8456                         /* Use round robin for scheduling */
8457                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8458                         chan = 0;
8459                         cpup = phba->sli4_hba.cpu_map;
8460                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8461                                 cpup->channel_id = chan;
8462                                 cpup++;
8463                                 chan++;
8464                                 if (chan >= phba->cfg_fcp_io_channel)
8465                                         chan = 0;
8466                         }
8467
8468                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8469                                         "3329 Cannot set affinity:"
8470                                         "Error mapping vector %d (%d)\n",
8471                                         idx, vectors);
8472                         return 0;
8473                 }
8474 found:
8475                 cpup += cpu;
8476                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8477                         lpfc_used_cpu[cpu] = phys_id;
8478
8479                 /* Associate vector with selected CPU */
8480                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8481
8482                 /* Associate IO channel with selected CPU */
8483                 cpup->channel_id = idx;
8484                 num_io_channel++;
8485
8486                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8487                         first_cpu = cpu;
8488
8489                 /* Now affinitize to the selected CPU */
8490                 mask = &cpup->maskbits;
8491                 cpumask_clear(mask);
8492                 cpumask_set_cpu(cpu, mask);
8493                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8494                                           vector, mask);
8495
8496                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8497                                 "3330 Set Affinity: CPU %d channel %d "
8498                                 "irq %d (%x)\n",
8499                                 cpu, cpup->channel_id,
8500                                 phba->sli4_hba.msix_entries[idx].vector, i);
8501
8502                 /* Spread vector mapping across multple physical CPU nodes */
8503                 phys_id++;
8504                 if (phys_id > max_phys_id)
8505                         phys_id = min_phys_id;
8506         }
8507
8508         /*
8509          * Finally fill in the IO channel for any remaining CPUs.
8510          * At this point, all IO channels have been assigned to a specific
8511          * MSIx vector, mapped to a specific CPU.
8512          * Base the remaining IO channel assigned, to IO channels already
8513          * assigned to other CPUs on the same phys_id.
8514          */
8515         for (i = min_phys_id; i <= max_phys_id; i++) {
8516                 /*
8517                  * If there are no io channels already mapped to
8518                  * this phys_id, just round robin thru the io_channels.
8519                  * Setup chann[] for round robin.
8520                  */
8521                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8522                         chann[idx] = idx;
8523
8524                 saved_chann = 0;
8525                 used_chann = 0;
8526
8527                 /*
8528                  * First build a list of IO channels already assigned
8529                  * to this phys_id before reassigning the same IO
8530                  * channels to the remaining CPUs.
8531                  */
8532                 cpup = phba->sli4_hba.cpu_map;
8533                 cpu = first_cpu;
8534                 cpup += cpu;
8535                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8536                      idx++) {
8537                         if (cpup->phys_id == i) {
8538                                 /*
8539                                  * Save any IO channels that are
8540                                  * already mapped to this phys_id.
8541                                  */
8542                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8543                                         chann[saved_chann] =
8544                                                 cpup->channel_id;
8545                                         saved_chann++;
8546                                         goto out;
8547                                 }
8548
8549                                 /* See if we are using round-robin */
8550                                 if (saved_chann == 0)
8551                                         saved_chann =
8552                                                 phba->cfg_fcp_io_channel;
8553
8554                                 /* Associate next IO channel with CPU */
8555                                 cpup->channel_id = chann[used_chann];
8556                                 num_io_channel++;
8557                                 used_chann++;
8558                                 if (used_chann == saved_chann)
8559                                         used_chann = 0;
8560
8561                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8562                                                 "3331 Set IO_CHANN "
8563                                                 "CPU %d channel %d\n",
8564                                                 idx, cpup->channel_id);
8565                         }
8566 out:
8567                         cpu++;
8568                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8569                                 cpup = phba->sli4_hba.cpu_map;
8570                                 cpu = 0;
8571                         } else {
8572                                 cpup++;
8573                         }
8574                 }
8575         }
8576
8577         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8578                 cpup = phba->sli4_hba.cpu_map;
8579                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8580                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8581                                 cpup->channel_id = 0;
8582                                 num_io_channel++;
8583
8584                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8585                                                 "3332 Assign IO_CHANN "
8586                                                 "CPU %d channel %d\n",
8587                                                 idx, cpup->channel_id);
8588                         }
8589                         cpup++;
8590                 }
8591         }
8592
8593         /* Sanity check */
8594         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8595                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8596                                 "3333 Set affinity mismatch:"
8597                                 "%d chann != %d cpus: %d vectors\n",
8598                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8599                                 vectors);
8600
8601         /* Enable using cpu affinity for scheduling */
8602         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8603         return 1;
8604 }
8605
8606
8607 /**
8608  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8609  * @phba: pointer to lpfc hba data structure.
8610  *
8611  * This routine is invoked to enable the MSI-X interrupt vectors to device
8612  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8613  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8614  * enables either all or nothing, depending on the current availability of
8615  * PCI vector resources. The device driver is responsible for calling the
8616  * individual request_irq() to register each MSI-X vector with a interrupt
8617  * handler, which is done in this function. Note that later when device is
8618  * unloading, the driver should always call free_irq() on all MSI-X vectors
8619  * it has done request_irq() on before calling pci_disable_msix(). Failure
8620  * to do so results in a BUG_ON() and a device will be left with MSI-X
8621  * enabled and leaks its vectors.
8622  *
8623  * Return codes
8624  * 0 - successful
8625  * other values - error
8626  **/
8627 static int
8628 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8629 {
8630         int vectors, rc, index;
8631
8632         /* Set up MSI-X multi-message vectors */
8633         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8634                 phba->sli4_hba.msix_entries[index].entry = index;
8635
8636         /* Configure MSI-X capability structure */
8637         vectors = phba->cfg_fcp_io_channel;
8638 enable_msix_vectors:
8639         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8640                              vectors);
8641         if (rc > 1) {
8642                 vectors = rc;
8643                 goto enable_msix_vectors;
8644         } else if (rc) {
8645                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8646                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8647                 goto msi_fail_out;
8648         }
8649
8650         /* Log MSI-X vector assignment */
8651         for (index = 0; index < vectors; index++)
8652                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8653                                 "0489 MSI-X entry[%d]: vector=x%x "
8654                                 "message=%d\n", index,
8655                                 phba->sli4_hba.msix_entries[index].vector,
8656                                 phba->sli4_hba.msix_entries[index].entry);
8657
8658         /* Assign MSI-X vectors to interrupt handlers */
8659         for (index = 0; index < vectors; index++) {
8660                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8661                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8662                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8663
8664                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8665                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8666                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8667                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8668                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8669                                  (char *)&phba->sli4_hba.handler_name[index],
8670                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8671                 if (rc) {
8672                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8673                                         "0486 MSI-X fast-path (%d) "
8674                                         "request_irq failed (%d)\n", index, rc);
8675                         goto cfg_fail_out;
8676                 }
8677         }
8678
8679         if (vectors != phba->cfg_fcp_io_channel) {
8680                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8681                                 "3238 Reducing IO channels to match number of "
8682                                 "MSI-X vectors, requested %d got %d\n",
8683                                 phba->cfg_fcp_io_channel, vectors);
8684                 phba->cfg_fcp_io_channel = vectors;
8685         }
8686
8687         lpfc_sli4_set_affinity(phba, vectors);
8688         return rc;
8689
8690 cfg_fail_out:
8691         /* free the irq already requested */
8692         for (--index; index >= 0; index--) {
8693                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8694                                           vector, NULL);
8695                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8696                          &phba->sli4_hba.fcp_eq_hdl[index]);
8697         }
8698
8699 msi_fail_out:
8700         /* Unconfigure MSI-X capability structure */
8701         pci_disable_msix(phba->pcidev);
8702         return rc;
8703 }
8704
8705 /**
8706  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8707  * @phba: pointer to lpfc hba data structure.
8708  *
8709  * This routine is invoked to release the MSI-X vectors and then disable the
8710  * MSI-X interrupt mode to device with SLI-4 interface spec.
8711  **/
8712 static void
8713 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8714 {
8715         int index;
8716
8717         /* Free up MSI-X multi-message vectors */
8718         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8719                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8720                                           vector, NULL);
8721                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8722                          &phba->sli4_hba.fcp_eq_hdl[index]);
8723         }
8724
8725         /* Disable MSI-X */
8726         pci_disable_msix(phba->pcidev);
8727
8728         return;
8729 }
8730
8731 /**
8732  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8733  * @phba: pointer to lpfc hba data structure.
8734  *
8735  * This routine is invoked to enable the MSI interrupt mode to device with
8736  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8737  * to enable the MSI vector. The device driver is responsible for calling
8738  * the request_irq() to register MSI vector with a interrupt the handler,
8739  * which is done in this function.
8740  *
8741  * Return codes
8742  *      0 - successful
8743  *      other values - error
8744  **/
8745 static int
8746 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8747 {
8748         int rc, index;
8749
8750         rc = pci_enable_msi(phba->pcidev);
8751         if (!rc)
8752                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8753                                 "0487 PCI enable MSI mode success.\n");
8754         else {
8755                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8756                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8757                 return rc;
8758         }
8759
8760         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8761                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8762         if (rc) {
8763                 pci_disable_msi(phba->pcidev);
8764                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8765                                 "0490 MSI request_irq failed (%d)\n", rc);
8766                 return rc;
8767         }
8768
8769         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8770                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8771                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8772         }
8773
8774         return 0;
8775 }
8776
8777 /**
8778  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8779  * @phba: pointer to lpfc hba data structure.
8780  *
8781  * This routine is invoked to disable the MSI interrupt mode to device with
8782  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8783  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8784  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8785  * its vector.
8786  **/
8787 static void
8788 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8789 {
8790         free_irq(phba->pcidev->irq, phba);
8791         pci_disable_msi(phba->pcidev);
8792         return;
8793 }
8794
8795 /**
8796  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8797  * @phba: pointer to lpfc hba data structure.
8798  *
8799  * This routine is invoked to enable device interrupt and associate driver's
8800  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8801  * interface spec. Depends on the interrupt mode configured to the driver,
8802  * the driver will try to fallback from the configured interrupt mode to an
8803  * interrupt mode which is supported by the platform, kernel, and device in
8804  * the order of:
8805  * MSI-X -> MSI -> IRQ.
8806  *
8807  * Return codes
8808  *      0 - successful
8809  *      other values - error
8810  **/
8811 static uint32_t
8812 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8813 {
8814         uint32_t intr_mode = LPFC_INTR_ERROR;
8815         int retval, index;
8816
8817         if (cfg_mode == 2) {
8818                 /* Preparation before conf_msi mbox cmd */
8819                 retval = 0;
8820                 if (!retval) {
8821                         /* Now, try to enable MSI-X interrupt mode */
8822                         retval = lpfc_sli4_enable_msix(phba);
8823                         if (!retval) {
8824                                 /* Indicate initialization to MSI-X mode */
8825                                 phba->intr_type = MSIX;
8826                                 intr_mode = 2;
8827                         }
8828                 }
8829         }
8830
8831         /* Fallback to MSI if MSI-X initialization failed */
8832         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8833                 retval = lpfc_sli4_enable_msi(phba);
8834                 if (!retval) {
8835                         /* Indicate initialization to MSI mode */
8836                         phba->intr_type = MSI;
8837                         intr_mode = 1;
8838                 }
8839         }
8840
8841         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8842         if (phba->intr_type == NONE) {
8843                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8844                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8845                 if (!retval) {
8846                         /* Indicate initialization to INTx mode */
8847                         phba->intr_type = INTx;
8848                         intr_mode = 0;
8849                         for (index = 0; index < phba->cfg_fcp_io_channel;
8850                              index++) {
8851                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8852                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8853                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8854                                         fcp_eq_in_use, 1);
8855                         }
8856                 }
8857         }
8858         return intr_mode;
8859 }
8860
8861 /**
8862  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8863  * @phba: pointer to lpfc hba data structure.
8864  *
8865  * This routine is invoked to disable device interrupt and disassociate
8866  * the driver's interrupt handler(s) from interrupt vector(s) to device
8867  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8868  * will release the interrupt vector(s) for the message signaled interrupt.
8869  **/
8870 static void
8871 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8872 {
8873         /* Disable the currently initialized interrupt mode */
8874         if (phba->intr_type == MSIX)
8875                 lpfc_sli4_disable_msix(phba);
8876         else if (phba->intr_type == MSI)
8877                 lpfc_sli4_disable_msi(phba);
8878         else if (phba->intr_type == INTx)
8879                 free_irq(phba->pcidev->irq, phba);
8880
8881         /* Reset interrupt management states */
8882         phba->intr_type = NONE;
8883         phba->sli.slistat.sli_intr = 0;
8884
8885         return;
8886 }
8887
8888 /**
8889  * lpfc_unset_hba - Unset SLI3 hba device initialization
8890  * @phba: pointer to lpfc hba data structure.
8891  *
8892  * This routine is invoked to unset the HBA device initialization steps to
8893  * a device with SLI-3 interface spec.
8894  **/
8895 static void
8896 lpfc_unset_hba(struct lpfc_hba *phba)
8897 {
8898         struct lpfc_vport *vport = phba->pport;
8899         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8900
8901         spin_lock_irq(shost->host_lock);
8902         vport->load_flag |= FC_UNLOADING;
8903         spin_unlock_irq(shost->host_lock);
8904
8905         kfree(phba->vpi_bmask);
8906         kfree(phba->vpi_ids);
8907
8908         lpfc_stop_hba_timers(phba);
8909
8910         phba->pport->work_port_events = 0;
8911
8912         lpfc_sli_hba_down(phba);
8913
8914         lpfc_sli_brdrestart(phba);
8915
8916         lpfc_sli_disable_intr(phba);
8917
8918         return;
8919 }
8920
8921 /**
8922  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8923  * @phba: Pointer to HBA context object.
8924  *
8925  * This function is called in the SLI4 code path to wait for completion
8926  * of device's XRIs exchange busy. It will check the XRI exchange busy
8927  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8928  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8929  * I/Os every 30 seconds, log error message, and wait forever. Only when
8930  * all XRI exchange busy complete, the driver unload shall proceed with
8931  * invoking the function reset ioctl mailbox command to the CNA and the
8932  * the rest of the driver unload resource release.
8933  **/
8934 static void
8935 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8936 {
8937         int wait_time = 0;
8938         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8939         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8940
8941         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8942                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8943                         if (!fcp_xri_cmpl)
8944                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8945                                                 "2877 FCP XRI exchange busy "
8946                                                 "wait time: %d seconds.\n",
8947                                                 wait_time/1000);
8948                         if (!els_xri_cmpl)
8949                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8950                                                 "2878 ELS XRI exchange busy "
8951                                                 "wait time: %d seconds.\n",
8952                                                 wait_time/1000);
8953                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8954                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8955                 } else {
8956                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8957                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8958                 }
8959                 fcp_xri_cmpl =
8960                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8961                 els_xri_cmpl =
8962                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8963         }
8964 }
8965
8966 /**
8967  * lpfc_sli4_hba_unset - Unset the fcoe hba
8968  * @phba: Pointer to HBA context object.
8969  *
8970  * This function is called in the SLI4 code path to reset the HBA's FCoE
8971  * function. The caller is not required to hold any lock. This routine
8972  * issues PCI function reset mailbox command to reset the FCoE function.
8973  * At the end of the function, it calls lpfc_hba_down_post function to
8974  * free any pending commands.
8975  **/
8976 static void
8977 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8978 {
8979         int wait_cnt = 0;
8980         LPFC_MBOXQ_t *mboxq;
8981         struct pci_dev *pdev = phba->pcidev;
8982
8983         lpfc_stop_hba_timers(phba);
8984         phba->sli4_hba.intr_enable = 0;
8985
8986         /*
8987          * Gracefully wait out the potential current outstanding asynchronous
8988          * mailbox command.
8989          */
8990
8991         /* First, block any pending async mailbox command from posted */
8992         spin_lock_irq(&phba->hbalock);
8993         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8994         spin_unlock_irq(&phba->hbalock);
8995         /* Now, trying to wait it out if we can */
8996         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8997                 msleep(10);
8998                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8999                         break;
9000         }
9001         /* Forcefully release the outstanding mailbox command if timed out */
9002         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9003                 spin_lock_irq(&phba->hbalock);
9004                 mboxq = phba->sli.mbox_active;
9005                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9006                 __lpfc_mbox_cmpl_put(phba, mboxq);
9007                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9008                 phba->sli.mbox_active = NULL;
9009                 spin_unlock_irq(&phba->hbalock);
9010         }
9011
9012         /* Abort all iocbs associated with the hba */
9013         lpfc_sli_hba_iocb_abort(phba);
9014
9015         /* Wait for completion of device XRI exchange busy */
9016         lpfc_sli4_xri_exchange_busy_wait(phba);
9017
9018         /* Disable PCI subsystem interrupt */
9019         lpfc_sli4_disable_intr(phba);
9020
9021         /* Disable SR-IOV if enabled */
9022         if (phba->cfg_sriov_nr_virtfn)
9023                 pci_disable_sriov(pdev);
9024
9025         /* Stop kthread signal shall trigger work_done one more time */
9026         kthread_stop(phba->worker_thread);
9027
9028         /* Reset SLI4 HBA FCoE function */
9029         lpfc_pci_function_reset(phba);
9030         lpfc_sli4_queue_destroy(phba);
9031
9032         /* Stop the SLI4 device port */
9033         phba->pport->work_port_events = 0;
9034 }
9035
9036  /**
9037  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9038  * @phba: Pointer to HBA context object.
9039  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9040  *
9041  * This function is called in the SLI4 code path to read the port's
9042  * sli4 capabilities.
9043  *
9044  * This function may be be called from any context that can block-wait
9045  * for the completion.  The expectation is that this routine is called
9046  * typically from probe_one or from the online routine.
9047  **/
9048 int
9049 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9050 {
9051         int rc;
9052         struct lpfc_mqe *mqe;
9053         struct lpfc_pc_sli4_params *sli4_params;
9054         uint32_t mbox_tmo;
9055
9056         rc = 0;
9057         mqe = &mboxq->u.mqe;
9058
9059         /* Read the port's SLI4 Parameters port capabilities */
9060         lpfc_pc_sli4_params(mboxq);
9061         if (!phba->sli4_hba.intr_enable)
9062                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9063         else {
9064                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9065                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9066         }
9067
9068         if (unlikely(rc))
9069                 return 1;
9070
9071         sli4_params = &phba->sli4_hba.pc_sli4_params;
9072         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9073         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9074         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9075         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9076                                              &mqe->un.sli4_params);
9077         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9078                                              &mqe->un.sli4_params);
9079         sli4_params->proto_types = mqe->un.sli4_params.word3;
9080         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9081         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9082         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9083         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9084         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9085         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9086         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9087         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9088         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9089         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9090         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9091         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9092         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9093         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9094         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9095         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9096         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9097         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9098         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9099         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9100
9101         /* Make sure that sge_supp_len can be handled by the driver */
9102         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9103                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9104
9105         return rc;
9106 }
9107
9108 /**
9109  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9110  * @phba: Pointer to HBA context object.
9111  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9112  *
9113  * This function is called in the SLI4 code path to read the port's
9114  * sli4 capabilities.
9115  *
9116  * This function may be be called from any context that can block-wait
9117  * for the completion.  The expectation is that this routine is called
9118  * typically from probe_one or from the online routine.
9119  **/
9120 int
9121 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9122 {
9123         int rc;
9124         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9125         struct lpfc_pc_sli4_params *sli4_params;
9126         uint32_t mbox_tmo;
9127         int length;
9128         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9129
9130         /*
9131          * By default, the driver assumes the SLI4 port requires RPI
9132          * header postings.  The SLI4_PARAM response will correct this
9133          * assumption.
9134          */
9135         phba->sli4_hba.rpi_hdrs_in_use = 1;
9136
9137         /* Read the port's SLI4 Config Parameters */
9138         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9139                   sizeof(struct lpfc_sli4_cfg_mhdr));
9140         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9141                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9142                          length, LPFC_SLI4_MBX_EMBED);
9143         if (!phba->sli4_hba.intr_enable)
9144                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9145         else {
9146                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9147                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9148         }
9149         if (unlikely(rc))
9150                 return rc;
9151         sli4_params = &phba->sli4_hba.pc_sli4_params;
9152         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9153         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9154         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9155         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9156         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9157                                              mbx_sli4_parameters);
9158         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9159                                              mbx_sli4_parameters);
9160         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9161                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9162         else
9163                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9164         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9165         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9166         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9167         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9168         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9169         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9170         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9171         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9172                                             mbx_sli4_parameters);
9173         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9174                                            mbx_sli4_parameters);
9175         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9176         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9177
9178         /* Make sure that sge_supp_len can be handled by the driver */
9179         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9180                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9181
9182         return 0;
9183 }
9184
9185 /**
9186  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9187  * @pdev: pointer to PCI device
9188  * @pid: pointer to PCI device identifier
9189  *
9190  * This routine is to be called to attach a device with SLI-3 interface spec
9191  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9192  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9193  * information of the device and driver to see if the driver state that it can
9194  * support this kind of device. If the match is successful, the driver core
9195  * invokes this routine. If this routine determines it can claim the HBA, it
9196  * does all the initialization that it needs to do to handle the HBA properly.
9197  *
9198  * Return code
9199  *      0 - driver can claim the device
9200  *      negative value - driver can not claim the device
9201  **/
9202 static int
9203 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9204 {
9205         struct lpfc_hba   *phba;
9206         struct lpfc_vport *vport = NULL;
9207         struct Scsi_Host  *shost = NULL;
9208         int error;
9209         uint32_t cfg_mode, intr_mode;
9210
9211         /* Allocate memory for HBA structure */
9212         phba = lpfc_hba_alloc(pdev);
9213         if (!phba)
9214                 return -ENOMEM;
9215
9216         /* Perform generic PCI device enabling operation */
9217         error = lpfc_enable_pci_dev(phba);
9218         if (error)
9219                 goto out_free_phba;
9220
9221         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9222         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9223         if (error)
9224                 goto out_disable_pci_dev;
9225
9226         /* Set up SLI-3 specific device PCI memory space */
9227         error = lpfc_sli_pci_mem_setup(phba);
9228         if (error) {
9229                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9230                                 "1402 Failed to set up pci memory space.\n");
9231                 goto out_disable_pci_dev;
9232         }
9233
9234         /* Set up phase-1 common device driver resources */
9235         error = lpfc_setup_driver_resource_phase1(phba);
9236         if (error) {
9237                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9238                                 "1403 Failed to set up driver resource.\n");
9239                 goto out_unset_pci_mem_s3;
9240         }
9241
9242         /* Set up SLI-3 specific device driver resources */
9243         error = lpfc_sli_driver_resource_setup(phba);
9244         if (error) {
9245                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9246                                 "1404 Failed to set up driver resource.\n");
9247                 goto out_unset_pci_mem_s3;
9248         }
9249
9250         /* Initialize and populate the iocb list per host */
9251         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9252         if (error) {
9253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9254                                 "1405 Failed to initialize iocb list.\n");
9255                 goto out_unset_driver_resource_s3;
9256         }
9257
9258         /* Set up common device driver resources */
9259         error = lpfc_setup_driver_resource_phase2(phba);
9260         if (error) {
9261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262                                 "1406 Failed to set up driver resource.\n");
9263                 goto out_free_iocb_list;
9264         }
9265
9266         /* Get the default values for Model Name and Description */
9267         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9268
9269         /* Create SCSI host to the physical port */
9270         error = lpfc_create_shost(phba);
9271         if (error) {
9272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9273                                 "1407 Failed to create scsi host.\n");
9274                 goto out_unset_driver_resource;
9275         }
9276
9277         /* Configure sysfs attributes */
9278         vport = phba->pport;
9279         error = lpfc_alloc_sysfs_attr(vport);
9280         if (error) {
9281                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282                                 "1476 Failed to allocate sysfs attr\n");
9283                 goto out_destroy_shost;
9284         }
9285
9286         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9287         /* Now, trying to enable interrupt and bring up the device */
9288         cfg_mode = phba->cfg_use_msi;
9289         while (true) {
9290                 /* Put device to a known state before enabling interrupt */
9291                 lpfc_stop_port(phba);
9292                 /* Configure and enable interrupt */
9293                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9294                 if (intr_mode == LPFC_INTR_ERROR) {
9295                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9296                                         "0431 Failed to enable interrupt.\n");
9297                         error = -ENODEV;
9298                         goto out_free_sysfs_attr;
9299                 }
9300                 /* SLI-3 HBA setup */
9301                 if (lpfc_sli_hba_setup(phba)) {
9302                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9303                                         "1477 Failed to set up hba\n");
9304                         error = -ENODEV;
9305                         goto out_remove_device;
9306                 }
9307
9308                 /* Wait 50ms for the interrupts of previous mailbox commands */
9309                 msleep(50);
9310                 /* Check active interrupts on message signaled interrupts */
9311                 if (intr_mode == 0 ||
9312                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9313                         /* Log the current active interrupt mode */
9314                         phba->intr_mode = intr_mode;
9315                         lpfc_log_intr_mode(phba, intr_mode);
9316                         break;
9317                 } else {
9318                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9319                                         "0447 Configure interrupt mode (%d) "
9320                                         "failed active interrupt test.\n",
9321                                         intr_mode);
9322                         /* Disable the current interrupt mode */
9323                         lpfc_sli_disable_intr(phba);
9324                         /* Try next level of interrupt mode */
9325                         cfg_mode = --intr_mode;
9326                 }
9327         }
9328
9329         /* Perform post initialization setup */
9330         lpfc_post_init_setup(phba);
9331
9332         /* Check if there are static vports to be created. */
9333         lpfc_create_static_vport(phba);
9334
9335         return 0;
9336
9337 out_remove_device:
9338         lpfc_unset_hba(phba);
9339 out_free_sysfs_attr:
9340         lpfc_free_sysfs_attr(vport);
9341 out_destroy_shost:
9342         lpfc_destroy_shost(phba);
9343 out_unset_driver_resource:
9344         lpfc_unset_driver_resource_phase2(phba);
9345 out_free_iocb_list:
9346         lpfc_free_iocb_list(phba);
9347 out_unset_driver_resource_s3:
9348         lpfc_sli_driver_resource_unset(phba);
9349 out_unset_pci_mem_s3:
9350         lpfc_sli_pci_mem_unset(phba);
9351 out_disable_pci_dev:
9352         lpfc_disable_pci_dev(phba);
9353         if (shost)
9354                 scsi_host_put(shost);
9355 out_free_phba:
9356         lpfc_hba_free(phba);
9357         return error;
9358 }
9359
9360 /**
9361  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9362  * @pdev: pointer to PCI device
9363  *
9364  * This routine is to be called to disattach a device with SLI-3 interface
9365  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9366  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9367  * device to be removed from the PCI subsystem properly.
9368  **/
9369 static void
9370 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9371 {
9372         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9373         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9374         struct lpfc_vport **vports;
9375         struct lpfc_hba   *phba = vport->phba;
9376         int i;
9377         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9378
9379         spin_lock_irq(&phba->hbalock);
9380         vport->load_flag |= FC_UNLOADING;
9381         spin_unlock_irq(&phba->hbalock);
9382
9383         lpfc_free_sysfs_attr(vport);
9384
9385         /* Release all the vports against this physical port */
9386         vports = lpfc_create_vport_work_array(phba);
9387         if (vports != NULL)
9388                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9389                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9390                                 continue;
9391                         fc_vport_terminate(vports[i]->fc_vport);
9392                 }
9393         lpfc_destroy_vport_work_array(phba, vports);
9394
9395         /* Remove FC host and then SCSI host with the physical port */
9396         fc_remove_host(shost);
9397         scsi_remove_host(shost);
9398         lpfc_cleanup(vport);
9399
9400         /*
9401          * Bring down the SLI Layer. This step disable all interrupts,
9402          * clears the rings, discards all mailbox commands, and resets
9403          * the HBA.
9404          */
9405
9406         /* HBA interrupt will be disabled after this call */
9407         lpfc_sli_hba_down(phba);
9408         /* Stop kthread signal shall trigger work_done one more time */
9409         kthread_stop(phba->worker_thread);
9410         /* Final cleanup of txcmplq and reset the HBA */
9411         lpfc_sli_brdrestart(phba);
9412
9413         kfree(phba->vpi_bmask);
9414         kfree(phba->vpi_ids);
9415
9416         lpfc_stop_hba_timers(phba);
9417         spin_lock_irq(&phba->hbalock);
9418         list_del_init(&vport->listentry);
9419         spin_unlock_irq(&phba->hbalock);
9420
9421         lpfc_debugfs_terminate(vport);
9422
9423         /* Disable SR-IOV if enabled */
9424         if (phba->cfg_sriov_nr_virtfn)
9425                 pci_disable_sriov(pdev);
9426
9427         /* Disable interrupt */
9428         lpfc_sli_disable_intr(phba);
9429
9430         scsi_host_put(shost);
9431
9432         /*
9433          * Call scsi_free before mem_free since scsi bufs are released to their
9434          * corresponding pools here.
9435          */
9436         lpfc_scsi_free(phba);
9437         lpfc_mem_free_all(phba);
9438
9439         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9440                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9441
9442         /* Free resources associated with SLI2 interface */
9443         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9444                           phba->slim2p.virt, phba->slim2p.phys);
9445
9446         /* unmap adapter SLIM and Control Registers */
9447         iounmap(phba->ctrl_regs_memmap_p);
9448         iounmap(phba->slim_memmap_p);
9449
9450         lpfc_hba_free(phba);
9451
9452         pci_release_selected_regions(pdev, bars);
9453         pci_disable_device(pdev);
9454 }
9455
9456 /**
9457  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9458  * @pdev: pointer to PCI device
9459  * @msg: power management message
9460  *
9461  * This routine is to be called from the kernel's PCI subsystem to support
9462  * system Power Management (PM) to device with SLI-3 interface spec. When
9463  * PM invokes this method, it quiesces the device by stopping the driver's
9464  * worker thread for the device, turning off device's interrupt and DMA,
9465  * and bring the device offline. Note that as the driver implements the
9466  * minimum PM requirements to a power-aware driver's PM support for the
9467  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9468  * to the suspend() method call will be treated as SUSPEND and the driver will
9469  * fully reinitialize its device during resume() method call, the driver will
9470  * set device to PCI_D3hot state in PCI config space instead of setting it
9471  * according to the @msg provided by the PM.
9472  *
9473  * Return code
9474  *      0 - driver suspended the device
9475  *      Error otherwise
9476  **/
9477 static int
9478 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9479 {
9480         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9481         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9482
9483         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9484                         "0473 PCI device Power Management suspend.\n");
9485
9486         /* Bring down the device */
9487         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9488         lpfc_offline(phba);
9489         kthread_stop(phba->worker_thread);
9490
9491         /* Disable interrupt from device */
9492         lpfc_sli_disable_intr(phba);
9493
9494         /* Save device state to PCI config space */
9495         pci_save_state(pdev);
9496         pci_set_power_state(pdev, PCI_D3hot);
9497
9498         return 0;
9499 }
9500
9501 /**
9502  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9503  * @pdev: pointer to PCI device
9504  *
9505  * This routine is to be called from the kernel's PCI subsystem to support
9506  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9507  * invokes this method, it restores the device's PCI config space state and
9508  * fully reinitializes the device and brings it online. Note that as the
9509  * driver implements the minimum PM requirements to a power-aware driver's
9510  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9511  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9512  * driver will fully reinitialize its device during resume() method call,
9513  * the device will be set to PCI_D0 directly in PCI config space before
9514  * restoring the state.
9515  *
9516  * Return code
9517  *      0 - driver suspended the device
9518  *      Error otherwise
9519  **/
9520 static int
9521 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9522 {
9523         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9524         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9525         uint32_t intr_mode;
9526         int error;
9527
9528         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9529                         "0452 PCI device Power Management resume.\n");
9530
9531         /* Restore device state from PCI config space */
9532         pci_set_power_state(pdev, PCI_D0);
9533         pci_restore_state(pdev);
9534
9535         /*
9536          * As the new kernel behavior of pci_restore_state() API call clears
9537          * device saved_state flag, need to save the restored state again.
9538          */
9539         pci_save_state(pdev);
9540
9541         if (pdev->is_busmaster)
9542                 pci_set_master(pdev);
9543
9544         /* Startup the kernel thread for this host adapter. */
9545         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9546                                         "lpfc_worker_%d", phba->brd_no);
9547         if (IS_ERR(phba->worker_thread)) {
9548                 error = PTR_ERR(phba->worker_thread);
9549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9550                                 "0434 PM resume failed to start worker "
9551                                 "thread: error=x%x.\n", error);
9552                 return error;
9553         }
9554
9555         /* Configure and enable interrupt */
9556         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9557         if (intr_mode == LPFC_INTR_ERROR) {
9558                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559                                 "0430 PM resume Failed to enable interrupt\n");
9560                 return -EIO;
9561         } else
9562                 phba->intr_mode = intr_mode;
9563
9564         /* Restart HBA and bring it online */
9565         lpfc_sli_brdrestart(phba);
9566         lpfc_online(phba);
9567
9568         /* Log the current active interrupt mode */
9569         lpfc_log_intr_mode(phba, phba->intr_mode);
9570
9571         return 0;
9572 }
9573
9574 /**
9575  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9576  * @phba: pointer to lpfc hba data structure.
9577  *
9578  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9579  * aborts all the outstanding SCSI I/Os to the pci device.
9580  **/
9581 static void
9582 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9583 {
9584         struct lpfc_sli *psli = &phba->sli;
9585         struct lpfc_sli_ring  *pring;
9586
9587         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9588                         "2723 PCI channel I/O abort preparing for recovery\n");
9589
9590         /*
9591          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9592          * and let the SCSI mid-layer to retry them to recover.
9593          */
9594         pring = &psli->ring[psli->fcp_ring];
9595         lpfc_sli_abort_iocb_ring(phba, pring);
9596 }
9597
9598 /**
9599  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9600  * @phba: pointer to lpfc hba data structure.
9601  *
9602  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9603  * disables the device interrupt and pci device, and aborts the internal FCP
9604  * pending I/Os.
9605  **/
9606 static void
9607 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9608 {
9609         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9610                         "2710 PCI channel disable preparing for reset\n");
9611
9612         /* Block any management I/Os to the device */
9613         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9614
9615         /* Block all SCSI devices' I/Os on the host */
9616         lpfc_scsi_dev_block(phba);
9617
9618         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9619         lpfc_sli_flush_fcp_rings(phba);
9620
9621         /* stop all timers */
9622         lpfc_stop_hba_timers(phba);
9623
9624         /* Disable interrupt and pci device */
9625         lpfc_sli_disable_intr(phba);
9626         pci_disable_device(phba->pcidev);
9627 }
9628
9629 /**
9630  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9631  * @phba: pointer to lpfc hba data structure.
9632  *
9633  * This routine is called to prepare the SLI3 device for PCI slot permanently
9634  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9635  * pending I/Os.
9636  **/
9637 static void
9638 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9639 {
9640         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9641                         "2711 PCI channel permanent disable for failure\n");
9642         /* Block all SCSI devices' I/Os on the host */
9643         lpfc_scsi_dev_block(phba);
9644
9645         /* stop all timers */
9646         lpfc_stop_hba_timers(phba);
9647
9648         /* Clean up all driver's outstanding SCSI I/Os */
9649         lpfc_sli_flush_fcp_rings(phba);
9650 }
9651
9652 /**
9653  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9654  * @pdev: pointer to PCI device.
9655  * @state: the current PCI connection state.
9656  *
9657  * This routine is called from the PCI subsystem for I/O error handling to
9658  * device with SLI-3 interface spec. This function is called by the PCI
9659  * subsystem after a PCI bus error affecting this device has been detected.
9660  * When this function is invoked, it will need to stop all the I/Os and
9661  * interrupt(s) to the device. Once that is done, it will return
9662  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9663  * as desired.
9664  *
9665  * Return codes
9666  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9667  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9668  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9669  **/
9670 static pci_ers_result_t
9671 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9672 {
9673         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9674         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9675
9676         switch (state) {
9677         case pci_channel_io_normal:
9678                 /* Non-fatal error, prepare for recovery */
9679                 lpfc_sli_prep_dev_for_recover(phba);
9680                 return PCI_ERS_RESULT_CAN_RECOVER;
9681         case pci_channel_io_frozen:
9682                 /* Fatal error, prepare for slot reset */
9683                 lpfc_sli_prep_dev_for_reset(phba);
9684                 return PCI_ERS_RESULT_NEED_RESET;
9685         case pci_channel_io_perm_failure:
9686                 /* Permanent failure, prepare for device down */
9687                 lpfc_sli_prep_dev_for_perm_failure(phba);
9688                 return PCI_ERS_RESULT_DISCONNECT;
9689         default:
9690                 /* Unknown state, prepare and request slot reset */
9691                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9692                                 "0472 Unknown PCI error state: x%x\n", state);
9693                 lpfc_sli_prep_dev_for_reset(phba);
9694                 return PCI_ERS_RESULT_NEED_RESET;
9695         }
9696 }
9697
9698 /**
9699  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9700  * @pdev: pointer to PCI device.
9701  *
9702  * This routine is called from the PCI subsystem for error handling to
9703  * device with SLI-3 interface spec. This is called after PCI bus has been
9704  * reset to restart the PCI card from scratch, as if from a cold-boot.
9705  * During the PCI subsystem error recovery, after driver returns
9706  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9707  * recovery and then call this routine before calling the .resume method
9708  * to recover the device. This function will initialize the HBA device,
9709  * enable the interrupt, but it will just put the HBA to offline state
9710  * without passing any I/O traffic.
9711  *
9712  * Return codes
9713  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9714  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9715  */
9716 static pci_ers_result_t
9717 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9718 {
9719         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9720         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9721         struct lpfc_sli *psli = &phba->sli;
9722         uint32_t intr_mode;
9723
9724         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9725         if (pci_enable_device_mem(pdev)) {
9726                 printk(KERN_ERR "lpfc: Cannot re-enable "
9727                         "PCI device after reset.\n");
9728                 return PCI_ERS_RESULT_DISCONNECT;
9729         }
9730
9731         pci_restore_state(pdev);
9732
9733         /*
9734          * As the new kernel behavior of pci_restore_state() API call clears
9735          * device saved_state flag, need to save the restored state again.
9736          */
9737         pci_save_state(pdev);
9738
9739         if (pdev->is_busmaster)
9740                 pci_set_master(pdev);
9741
9742         spin_lock_irq(&phba->hbalock);
9743         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9744         spin_unlock_irq(&phba->hbalock);
9745
9746         /* Configure and enable interrupt */
9747         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9748         if (intr_mode == LPFC_INTR_ERROR) {
9749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9750                                 "0427 Cannot re-enable interrupt after "
9751                                 "slot reset.\n");
9752                 return PCI_ERS_RESULT_DISCONNECT;
9753         } else
9754                 phba->intr_mode = intr_mode;
9755
9756         /* Take device offline, it will perform cleanup */
9757         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9758         lpfc_offline(phba);
9759         lpfc_sli_brdrestart(phba);
9760
9761         /* Log the current active interrupt mode */
9762         lpfc_log_intr_mode(phba, phba->intr_mode);
9763
9764         return PCI_ERS_RESULT_RECOVERED;
9765 }
9766
9767 /**
9768  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9769  * @pdev: pointer to PCI device
9770  *
9771  * This routine is called from the PCI subsystem for error handling to device
9772  * with SLI-3 interface spec. It is called when kernel error recovery tells
9773  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9774  * error recovery. After this call, traffic can start to flow from this device
9775  * again.
9776  */
9777 static void
9778 lpfc_io_resume_s3(struct pci_dev *pdev)
9779 {
9780         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9781         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9782
9783         /* Bring device online, it will be no-op for non-fatal error resume */
9784         lpfc_online(phba);
9785
9786         /* Clean up Advanced Error Reporting (AER) if needed */
9787         if (phba->hba_flag & HBA_AER_ENABLED)
9788                 pci_cleanup_aer_uncorrect_error_status(pdev);
9789 }
9790
9791 /**
9792  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9793  * @phba: pointer to lpfc hba data structure.
9794  *
9795  * returns the number of ELS/CT IOCBs to reserve
9796  **/
9797 int
9798 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9799 {
9800         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9801
9802         if (phba->sli_rev == LPFC_SLI_REV4) {
9803                 if (max_xri <= 100)
9804                         return 10;
9805                 else if (max_xri <= 256)
9806                         return 25;
9807                 else if (max_xri <= 512)
9808                         return 50;
9809                 else if (max_xri <= 1024)
9810                         return 100;
9811                 else if (max_xri <= 1536)
9812                         return 150;
9813                 else if (max_xri <= 2048)
9814                         return 200;
9815                 else
9816                         return 250;
9817         } else
9818                 return 0;
9819 }
9820
9821 /**
9822  * lpfc_write_firmware - attempt to write a firmware image to the port
9823  * @fw: pointer to firmware image returned from request_firmware.
9824  * @phba: pointer to lpfc hba data structure.
9825  *
9826  **/
9827 static void
9828 lpfc_write_firmware(const struct firmware *fw, void *context)
9829 {
9830         struct lpfc_hba *phba = (struct lpfc_hba *)context;
9831         char fwrev[FW_REV_STR_SIZE];
9832         struct lpfc_grp_hdr *image;
9833         struct list_head dma_buffer_list;
9834         int i, rc = 0;
9835         struct lpfc_dmabuf *dmabuf, *next;
9836         uint32_t offset = 0, temp_offset = 0;
9837
9838         /* It can be null in no-wait mode, sanity check */
9839         if (!fw) {
9840                 rc = -ENXIO;
9841                 goto out;
9842         }
9843         image = (struct lpfc_grp_hdr *)fw->data;
9844
9845         INIT_LIST_HEAD(&dma_buffer_list);
9846         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9847             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9848              LPFC_FILE_TYPE_GROUP) ||
9849             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9850             (be32_to_cpu(image->size) != fw->size)) {
9851                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9852                                 "3022 Invalid FW image found. "
9853                                 "Magic:%x Type:%x ID:%x\n",
9854                                 be32_to_cpu(image->magic_number),
9855                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9856                                 bf_get_be32(lpfc_grp_hdr_id, image));
9857                 rc = -EINVAL;
9858                 goto release_out;
9859         }
9860         lpfc_decode_firmware_rev(phba, fwrev, 1);
9861         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9863                                 "3023 Updating Firmware, Current Version:%s "
9864                                 "New Version:%s\n",
9865                                 fwrev, image->revision);
9866                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9867                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9868                                          GFP_KERNEL);
9869                         if (!dmabuf) {
9870                                 rc = -ENOMEM;
9871                                 goto release_out;
9872                         }
9873                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9874                                                           SLI4_PAGE_SIZE,
9875                                                           &dmabuf->phys,
9876                                                           GFP_KERNEL);
9877                         if (!dmabuf->virt) {
9878                                 kfree(dmabuf);
9879                                 rc = -ENOMEM;
9880                                 goto release_out;
9881                         }
9882                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9883                 }
9884                 while (offset < fw->size) {
9885                         temp_offset = offset;
9886                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9887                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9888                                         memcpy(dmabuf->virt,
9889                                                fw->data + temp_offset,
9890                                                fw->size - temp_offset);
9891                                         temp_offset = fw->size;
9892                                         break;
9893                                 }
9894                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9895                                        SLI4_PAGE_SIZE);
9896                                 temp_offset += SLI4_PAGE_SIZE;
9897                         }
9898                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9899                                     (fw->size - offset), &offset);
9900                         if (rc)
9901                                 goto release_out;
9902                 }
9903                 rc = offset;
9904         }
9905
9906 release_out:
9907         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9908                 list_del(&dmabuf->list);
9909                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9910                                   dmabuf->virt, dmabuf->phys);
9911                 kfree(dmabuf);
9912         }
9913         release_firmware(fw);
9914 out:
9915         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9916                         "3024 Firmware update done: %d.\n", rc);
9917         return;
9918 }
9919
9920 /**
9921  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9922  * @phba: pointer to lpfc hba data structure.
9923  *
9924  * This routine is called to perform Linux generic firmware upgrade on device
9925  * that supports such feature.
9926  **/
9927 int
9928 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9929 {
9930         uint8_t file_name[ELX_MODEL_NAME_SIZE];
9931         int ret;
9932         const struct firmware *fw;
9933
9934         /* Only supported on SLI4 interface type 2 for now */
9935         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9936             LPFC_SLI_INTF_IF_TYPE_2)
9937                 return -EPERM;
9938
9939         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9940
9941         if (fw_upgrade == INT_FW_UPGRADE) {
9942                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9943                                         file_name, &phba->pcidev->dev,
9944                                         GFP_KERNEL, (void *)phba,
9945                                         lpfc_write_firmware);
9946         } else if (fw_upgrade == RUN_FW_UPGRADE) {
9947                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9948                 if (!ret)
9949                         lpfc_write_firmware(fw, (void *)phba);
9950         } else {
9951                 ret = -EINVAL;
9952         }
9953
9954         return ret;
9955 }
9956
9957 /**
9958  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9959  * @pdev: pointer to PCI device
9960  * @pid: pointer to PCI device identifier
9961  *
9962  * This routine is called from the kernel's PCI subsystem to device with
9963  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9964  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9965  * information of the device and driver to see if the driver state that it
9966  * can support this kind of device. If the match is successful, the driver
9967  * core invokes this routine. If this routine determines it can claim the HBA,
9968  * it does all the initialization that it needs to do to handle the HBA
9969  * properly.
9970  *
9971  * Return code
9972  *      0 - driver can claim the device
9973  *      negative value - driver can not claim the device
9974  **/
9975 static int
9976 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9977 {
9978         struct lpfc_hba   *phba;
9979         struct lpfc_vport *vport = NULL;
9980         struct Scsi_Host  *shost = NULL;
9981         int error, ret;
9982         uint32_t cfg_mode, intr_mode;
9983         int adjusted_fcp_io_channel;
9984
9985         /* Allocate memory for HBA structure */
9986         phba = lpfc_hba_alloc(pdev);
9987         if (!phba)
9988                 return -ENOMEM;
9989
9990         /* Perform generic PCI device enabling operation */
9991         error = lpfc_enable_pci_dev(phba);
9992         if (error)
9993                 goto out_free_phba;
9994
9995         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9996         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9997         if (error)
9998                 goto out_disable_pci_dev;
9999
10000         /* Set up SLI-4 specific device PCI memory space */
10001         error = lpfc_sli4_pci_mem_setup(phba);
10002         if (error) {
10003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10004                                 "1410 Failed to set up pci memory space.\n");
10005                 goto out_disable_pci_dev;
10006         }
10007
10008         /* Set up phase-1 common device driver resources */
10009         error = lpfc_setup_driver_resource_phase1(phba);
10010         if (error) {
10011                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10012                                 "1411 Failed to set up driver resource.\n");
10013                 goto out_unset_pci_mem_s4;
10014         }
10015
10016         /* Set up SLI-4 Specific device driver resources */
10017         error = lpfc_sli4_driver_resource_setup(phba);
10018         if (error) {
10019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10020                                 "1412 Failed to set up driver resource.\n");
10021                 goto out_unset_pci_mem_s4;
10022         }
10023
10024         /* Initialize and populate the iocb list per host */
10025
10026         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10027                         "2821 initialize iocb list %d.\n",
10028                         phba->cfg_iocb_cnt*1024);
10029         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10030
10031         if (error) {
10032                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10033                                 "1413 Failed to initialize iocb list.\n");
10034                 goto out_unset_driver_resource_s4;
10035         }
10036
10037         INIT_LIST_HEAD(&phba->active_rrq_list);
10038         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10039
10040         /* Set up common device driver resources */
10041         error = lpfc_setup_driver_resource_phase2(phba);
10042         if (error) {
10043                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10044                                 "1414 Failed to set up driver resource.\n");
10045                 goto out_free_iocb_list;
10046         }
10047
10048         /* Get the default values for Model Name and Description */
10049         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10050
10051         /* Create SCSI host to the physical port */
10052         error = lpfc_create_shost(phba);
10053         if (error) {
10054                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10055                                 "1415 Failed to create scsi host.\n");
10056                 goto out_unset_driver_resource;
10057         }
10058
10059         /* Configure sysfs attributes */
10060         vport = phba->pport;
10061         error = lpfc_alloc_sysfs_attr(vport);
10062         if (error) {
10063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10064                                 "1416 Failed to allocate sysfs attr\n");
10065                 goto out_destroy_shost;
10066         }
10067
10068         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10069         /* Now, trying to enable interrupt and bring up the device */
10070         cfg_mode = phba->cfg_use_msi;
10071
10072         /* Put device to a known state before enabling interrupt */
10073         lpfc_stop_port(phba);
10074         /* Configure and enable interrupt */
10075         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10076         if (intr_mode == LPFC_INTR_ERROR) {
10077                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10078                                 "0426 Failed to enable interrupt.\n");
10079                 error = -ENODEV;
10080                 goto out_free_sysfs_attr;
10081         }
10082         /* Default to single EQ for non-MSI-X */
10083         if (phba->intr_type != MSIX)
10084                 adjusted_fcp_io_channel = 1;
10085         else
10086                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10087         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10088         /* Set up SLI-4 HBA */
10089         if (lpfc_sli4_hba_setup(phba)) {
10090                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10091                                 "1421 Failed to set up hba\n");
10092                 error = -ENODEV;
10093                 goto out_disable_intr;
10094         }
10095
10096         /* Log the current active interrupt mode */
10097         phba->intr_mode = intr_mode;
10098         lpfc_log_intr_mode(phba, intr_mode);
10099
10100         /* Perform post initialization setup */
10101         lpfc_post_init_setup(phba);
10102
10103         /* check for firmware upgrade or downgrade */
10104         if (phba->cfg_request_firmware_upgrade)
10105                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10106
10107         /* Check if there are static vports to be created. */
10108         lpfc_create_static_vport(phba);
10109         return 0;
10110
10111 out_disable_intr:
10112         lpfc_sli4_disable_intr(phba);
10113 out_free_sysfs_attr:
10114         lpfc_free_sysfs_attr(vport);
10115 out_destroy_shost:
10116         lpfc_destroy_shost(phba);
10117 out_unset_driver_resource:
10118         lpfc_unset_driver_resource_phase2(phba);
10119 out_free_iocb_list:
10120         lpfc_free_iocb_list(phba);
10121 out_unset_driver_resource_s4:
10122         lpfc_sli4_driver_resource_unset(phba);
10123 out_unset_pci_mem_s4:
10124         lpfc_sli4_pci_mem_unset(phba);
10125 out_disable_pci_dev:
10126         lpfc_disable_pci_dev(phba);
10127         if (shost)
10128                 scsi_host_put(shost);
10129 out_free_phba:
10130         lpfc_hba_free(phba);
10131         return error;
10132 }
10133
10134 /**
10135  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10136  * @pdev: pointer to PCI device
10137  *
10138  * This routine is called from the kernel's PCI subsystem to device with
10139  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10140  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10141  * device to be removed from the PCI subsystem properly.
10142  **/
10143 static void
10144 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10145 {
10146         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10147         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10148         struct lpfc_vport **vports;
10149         struct lpfc_hba *phba = vport->phba;
10150         int i;
10151
10152         /* Mark the device unloading flag */
10153         spin_lock_irq(&phba->hbalock);
10154         vport->load_flag |= FC_UNLOADING;
10155         spin_unlock_irq(&phba->hbalock);
10156
10157         /* Free the HBA sysfs attributes */
10158         lpfc_free_sysfs_attr(vport);
10159
10160         /* Release all the vports against this physical port */
10161         vports = lpfc_create_vport_work_array(phba);
10162         if (vports != NULL)
10163                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10164                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10165                                 continue;
10166                         fc_vport_terminate(vports[i]->fc_vport);
10167                 }
10168         lpfc_destroy_vport_work_array(phba, vports);
10169
10170         /* Remove FC host and then SCSI host with the physical port */
10171         fc_remove_host(shost);
10172         scsi_remove_host(shost);
10173
10174         /* Perform cleanup on the physical port */
10175         lpfc_cleanup(vport);
10176
10177         /*
10178          * Bring down the SLI Layer. This step disables all interrupts,
10179          * clears the rings, discards all mailbox commands, and resets
10180          * the HBA FCoE function.
10181          */
10182         lpfc_debugfs_terminate(vport);
10183         lpfc_sli4_hba_unset(phba);
10184
10185         spin_lock_irq(&phba->hbalock);
10186         list_del_init(&vport->listentry);
10187         spin_unlock_irq(&phba->hbalock);
10188
10189         /* Perform scsi free before driver resource_unset since scsi
10190          * buffers are released to their corresponding pools here.
10191          */
10192         lpfc_scsi_free(phba);
10193
10194         lpfc_sli4_driver_resource_unset(phba);
10195
10196         /* Unmap adapter Control and Doorbell registers */
10197         lpfc_sli4_pci_mem_unset(phba);
10198
10199         /* Release PCI resources and disable device's PCI function */
10200         scsi_host_put(shost);
10201         lpfc_disable_pci_dev(phba);
10202
10203         /* Finally, free the driver's device data structure */
10204         lpfc_hba_free(phba);
10205
10206         return;
10207 }
10208
10209 /**
10210  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10211  * @pdev: pointer to PCI device
10212  * @msg: power management message
10213  *
10214  * This routine is called from the kernel's PCI subsystem to support system
10215  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10216  * this method, it quiesces the device by stopping the driver's worker
10217  * thread for the device, turning off device's interrupt and DMA, and bring
10218  * the device offline. Note that as the driver implements the minimum PM
10219  * requirements to a power-aware driver's PM support for suspend/resume -- all
10220  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10221  * method call will be treated as SUSPEND and the driver will fully
10222  * reinitialize its device during resume() method call, the driver will set
10223  * device to PCI_D3hot state in PCI config space instead of setting it
10224  * according to the @msg provided by the PM.
10225  *
10226  * Return code
10227  *      0 - driver suspended the device
10228  *      Error otherwise
10229  **/
10230 static int
10231 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10232 {
10233         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10234         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10235
10236         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10237                         "2843 PCI device Power Management suspend.\n");
10238
10239         /* Bring down the device */
10240         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10241         lpfc_offline(phba);
10242         kthread_stop(phba->worker_thread);
10243
10244         /* Disable interrupt from device */
10245         lpfc_sli4_disable_intr(phba);
10246         lpfc_sli4_queue_destroy(phba);
10247
10248         /* Save device state to PCI config space */
10249         pci_save_state(pdev);
10250         pci_set_power_state(pdev, PCI_D3hot);
10251
10252         return 0;
10253 }
10254
10255 /**
10256  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10257  * @pdev: pointer to PCI device
10258  *
10259  * This routine is called from the kernel's PCI subsystem to support system
10260  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10261  * this method, it restores the device's PCI config space state and fully
10262  * reinitializes the device and brings it online. Note that as the driver
10263  * implements the minimum PM requirements to a power-aware driver's PM for
10264  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10265  * to the suspend() method call will be treated as SUSPEND and the driver
10266  * will fully reinitialize its device during resume() method call, the device
10267  * will be set to PCI_D0 directly in PCI config space before restoring the
10268  * state.
10269  *
10270  * Return code
10271  *      0 - driver suspended the device
10272  *      Error otherwise
10273  **/
10274 static int
10275 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10276 {
10277         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10278         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10279         uint32_t intr_mode;
10280         int error;
10281
10282         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10283                         "0292 PCI device Power Management resume.\n");
10284
10285         /* Restore device state from PCI config space */
10286         pci_set_power_state(pdev, PCI_D0);
10287         pci_restore_state(pdev);
10288
10289         /*
10290          * As the new kernel behavior of pci_restore_state() API call clears
10291          * device saved_state flag, need to save the restored state again.
10292          */
10293         pci_save_state(pdev);
10294
10295         if (pdev->is_busmaster)
10296                 pci_set_master(pdev);
10297
10298          /* Startup the kernel thread for this host adapter. */
10299         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10300                                         "lpfc_worker_%d", phba->brd_no);
10301         if (IS_ERR(phba->worker_thread)) {
10302                 error = PTR_ERR(phba->worker_thread);
10303                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10304                                 "0293 PM resume failed to start worker "
10305                                 "thread: error=x%x.\n", error);
10306                 return error;
10307         }
10308
10309         /* Configure and enable interrupt */
10310         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10311         if (intr_mode == LPFC_INTR_ERROR) {
10312                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10313                                 "0294 PM resume Failed to enable interrupt\n");
10314                 return -EIO;
10315         } else
10316                 phba->intr_mode = intr_mode;
10317
10318         /* Restart HBA and bring it online */
10319         lpfc_sli_brdrestart(phba);
10320         lpfc_online(phba);
10321
10322         /* Log the current active interrupt mode */
10323         lpfc_log_intr_mode(phba, phba->intr_mode);
10324
10325         return 0;
10326 }
10327
10328 /**
10329  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10330  * @phba: pointer to lpfc hba data structure.
10331  *
10332  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10333  * aborts all the outstanding SCSI I/Os to the pci device.
10334  **/
10335 static void
10336 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10337 {
10338         struct lpfc_sli *psli = &phba->sli;
10339         struct lpfc_sli_ring  *pring;
10340
10341         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10342                         "2828 PCI channel I/O abort preparing for recovery\n");
10343         /*
10344          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10345          * and let the SCSI mid-layer to retry them to recover.
10346          */
10347         pring = &psli->ring[psli->fcp_ring];
10348         lpfc_sli_abort_iocb_ring(phba, pring);
10349 }
10350
10351 /**
10352  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10353  * @phba: pointer to lpfc hba data structure.
10354  *
10355  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10356  * disables the device interrupt and pci device, and aborts the internal FCP
10357  * pending I/Os.
10358  **/
10359 static void
10360 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10361 {
10362         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10363                         "2826 PCI channel disable preparing for reset\n");
10364
10365         /* Block any management I/Os to the device */
10366         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10367
10368         /* Block all SCSI devices' I/Os on the host */
10369         lpfc_scsi_dev_block(phba);
10370
10371         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10372         lpfc_sli_flush_fcp_rings(phba);
10373
10374         /* stop all timers */
10375         lpfc_stop_hba_timers(phba);
10376
10377         /* Disable interrupt and pci device */
10378         lpfc_sli4_disable_intr(phba);
10379         lpfc_sli4_queue_destroy(phba);
10380         pci_disable_device(phba->pcidev);
10381 }
10382
10383 /**
10384  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10385  * @phba: pointer to lpfc hba data structure.
10386  *
10387  * This routine is called to prepare the SLI4 device for PCI slot permanently
10388  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10389  * pending I/Os.
10390  **/
10391 static void
10392 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10393 {
10394         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10395                         "2827 PCI channel permanent disable for failure\n");
10396
10397         /* Block all SCSI devices' I/Os on the host */
10398         lpfc_scsi_dev_block(phba);
10399
10400         /* stop all timers */
10401         lpfc_stop_hba_timers(phba);
10402
10403         /* Clean up all driver's outstanding SCSI I/Os */
10404         lpfc_sli_flush_fcp_rings(phba);
10405 }
10406
10407 /**
10408  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10409  * @pdev: pointer to PCI device.
10410  * @state: the current PCI connection state.
10411  *
10412  * This routine is called from the PCI subsystem for error handling to device
10413  * with SLI-4 interface spec. This function is called by the PCI subsystem
10414  * after a PCI bus error affecting this device has been detected. When this
10415  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10416  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10417  * for the PCI subsystem to perform proper recovery as desired.
10418  *
10419  * Return codes
10420  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10421  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10422  **/
10423 static pci_ers_result_t
10424 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10425 {
10426         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10427         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10428
10429         switch (state) {
10430         case pci_channel_io_normal:
10431                 /* Non-fatal error, prepare for recovery */
10432                 lpfc_sli4_prep_dev_for_recover(phba);
10433                 return PCI_ERS_RESULT_CAN_RECOVER;
10434         case pci_channel_io_frozen:
10435                 /* Fatal error, prepare for slot reset */
10436                 lpfc_sli4_prep_dev_for_reset(phba);
10437                 return PCI_ERS_RESULT_NEED_RESET;
10438         case pci_channel_io_perm_failure:
10439                 /* Permanent failure, prepare for device down */
10440                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10441                 return PCI_ERS_RESULT_DISCONNECT;
10442         default:
10443                 /* Unknown state, prepare and request slot reset */
10444                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10445                                 "2825 Unknown PCI error state: x%x\n", state);
10446                 lpfc_sli4_prep_dev_for_reset(phba);
10447                 return PCI_ERS_RESULT_NEED_RESET;
10448         }
10449 }
10450
10451 /**
10452  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10453  * @pdev: pointer to PCI device.
10454  *
10455  * This routine is called from the PCI subsystem for error handling to device
10456  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10457  * restart the PCI card from scratch, as if from a cold-boot. During the
10458  * PCI subsystem error recovery, after the driver returns
10459  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10460  * recovery and then call this routine before calling the .resume method to
10461  * recover the device. This function will initialize the HBA device, enable
10462  * the interrupt, but it will just put the HBA to offline state without
10463  * passing any I/O traffic.
10464  *
10465  * Return codes
10466  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10467  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10468  */
10469 static pci_ers_result_t
10470 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10471 {
10472         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10473         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10474         struct lpfc_sli *psli = &phba->sli;
10475         uint32_t intr_mode;
10476
10477         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10478         if (pci_enable_device_mem(pdev)) {
10479                 printk(KERN_ERR "lpfc: Cannot re-enable "
10480                         "PCI device after reset.\n");
10481                 return PCI_ERS_RESULT_DISCONNECT;
10482         }
10483
10484         pci_restore_state(pdev);
10485
10486         /*
10487          * As the new kernel behavior of pci_restore_state() API call clears
10488          * device saved_state flag, need to save the restored state again.
10489          */
10490         pci_save_state(pdev);
10491
10492         if (pdev->is_busmaster)
10493                 pci_set_master(pdev);
10494
10495         spin_lock_irq(&phba->hbalock);
10496         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10497         spin_unlock_irq(&phba->hbalock);
10498
10499         /* Configure and enable interrupt */
10500         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10501         if (intr_mode == LPFC_INTR_ERROR) {
10502                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10503                                 "2824 Cannot re-enable interrupt after "
10504                                 "slot reset.\n");
10505                 return PCI_ERS_RESULT_DISCONNECT;
10506         } else
10507                 phba->intr_mode = intr_mode;
10508
10509         /* Log the current active interrupt mode */
10510         lpfc_log_intr_mode(phba, phba->intr_mode);
10511
10512         return PCI_ERS_RESULT_RECOVERED;
10513 }
10514
10515 /**
10516  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10517  * @pdev: pointer to PCI device
10518  *
10519  * This routine is called from the PCI subsystem for error handling to device
10520  * with SLI-4 interface spec. It is called when kernel error recovery tells
10521  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10522  * error recovery. After this call, traffic can start to flow from this device
10523  * again.
10524  **/
10525 static void
10526 lpfc_io_resume_s4(struct pci_dev *pdev)
10527 {
10528         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10529         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10530
10531         /*
10532          * In case of slot reset, as function reset is performed through
10533          * mailbox command which needs DMA to be enabled, this operation
10534          * has to be moved to the io resume phase. Taking device offline
10535          * will perform the necessary cleanup.
10536          */
10537         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10538                 /* Perform device reset */
10539                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10540                 lpfc_offline(phba);
10541                 lpfc_sli_brdrestart(phba);
10542                 /* Bring the device back online */
10543                 lpfc_online(phba);
10544         }
10545
10546         /* Clean up Advanced Error Reporting (AER) if needed */
10547         if (phba->hba_flag & HBA_AER_ENABLED)
10548                 pci_cleanup_aer_uncorrect_error_status(pdev);
10549 }
10550
10551 /**
10552  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10553  * @pdev: pointer to PCI device
10554  * @pid: pointer to PCI device identifier
10555  *
10556  * This routine is to be registered to the kernel's PCI subsystem. When an
10557  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10558  * at PCI device-specific information of the device and driver to see if the
10559  * driver state that it can support this kind of device. If the match is
10560  * successful, the driver core invokes this routine. This routine dispatches
10561  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10562  * do all the initialization that it needs to do to handle the HBA device
10563  * properly.
10564  *
10565  * Return code
10566  *      0 - driver can claim the device
10567  *      negative value - driver can not claim the device
10568  **/
10569 static int
10570 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10571 {
10572         int rc;
10573         struct lpfc_sli_intf intf;
10574
10575         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10576                 return -ENODEV;
10577
10578         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10579             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10580                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10581         else
10582                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10583
10584         return rc;
10585 }
10586
10587 /**
10588  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10589  * @pdev: pointer to PCI device
10590  *
10591  * This routine is to be registered to the kernel's PCI subsystem. When an
10592  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10593  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10594  * remove routine, which will perform all the necessary cleanup for the
10595  * device to be removed from the PCI subsystem properly.
10596  **/
10597 static void
10598 lpfc_pci_remove_one(struct pci_dev *pdev)
10599 {
10600         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10601         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10602
10603         switch (phba->pci_dev_grp) {
10604         case LPFC_PCI_DEV_LP:
10605                 lpfc_pci_remove_one_s3(pdev);
10606                 break;
10607         case LPFC_PCI_DEV_OC:
10608                 lpfc_pci_remove_one_s4(pdev);
10609                 break;
10610         default:
10611                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10612                                 "1424 Invalid PCI device group: 0x%x\n",
10613                                 phba->pci_dev_grp);
10614                 break;
10615         }
10616         return;
10617 }
10618
10619 /**
10620  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10621  * @pdev: pointer to PCI device
10622  * @msg: power management message
10623  *
10624  * This routine is to be registered to the kernel's PCI subsystem to support
10625  * system Power Management (PM). When PM invokes this method, it dispatches
10626  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10627  * suspend the device.
10628  *
10629  * Return code
10630  *      0 - driver suspended the device
10631  *      Error otherwise
10632  **/
10633 static int
10634 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10635 {
10636         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10637         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10638         int rc = -ENODEV;
10639
10640         switch (phba->pci_dev_grp) {
10641         case LPFC_PCI_DEV_LP:
10642                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10643                 break;
10644         case LPFC_PCI_DEV_OC:
10645                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10646                 break;
10647         default:
10648                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10649                                 "1425 Invalid PCI device group: 0x%x\n",
10650                                 phba->pci_dev_grp);
10651                 break;
10652         }
10653         return rc;
10654 }
10655
10656 /**
10657  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10658  * @pdev: pointer to PCI device
10659  *
10660  * This routine is to be registered to the kernel's PCI subsystem to support
10661  * system Power Management (PM). When PM invokes this method, it dispatches
10662  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10663  * resume the device.
10664  *
10665  * Return code
10666  *      0 - driver suspended the device
10667  *      Error otherwise
10668  **/
10669 static int
10670 lpfc_pci_resume_one(struct pci_dev *pdev)
10671 {
10672         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10673         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10674         int rc = -ENODEV;
10675
10676         switch (phba->pci_dev_grp) {
10677         case LPFC_PCI_DEV_LP:
10678                 rc = lpfc_pci_resume_one_s3(pdev);
10679                 break;
10680         case LPFC_PCI_DEV_OC:
10681                 rc = lpfc_pci_resume_one_s4(pdev);
10682                 break;
10683         default:
10684                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10685                                 "1426 Invalid PCI device group: 0x%x\n",
10686                                 phba->pci_dev_grp);
10687                 break;
10688         }
10689         return rc;
10690 }
10691
10692 /**
10693  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10694  * @pdev: pointer to PCI device.
10695  * @state: the current PCI connection state.
10696  *
10697  * This routine is registered to the PCI subsystem for error handling. This
10698  * function is called by the PCI subsystem after a PCI bus error affecting
10699  * this device has been detected. When this routine is invoked, it dispatches
10700  * the action to the proper SLI-3 or SLI-4 device error detected handling
10701  * routine, which will perform the proper error detected operation.
10702  *
10703  * Return codes
10704  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10705  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10706  **/
10707 static pci_ers_result_t
10708 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10709 {
10710         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10711         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10712         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10713
10714         switch (phba->pci_dev_grp) {
10715         case LPFC_PCI_DEV_LP:
10716                 rc = lpfc_io_error_detected_s3(pdev, state);
10717                 break;
10718         case LPFC_PCI_DEV_OC:
10719                 rc = lpfc_io_error_detected_s4(pdev, state);
10720                 break;
10721         default:
10722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10723                                 "1427 Invalid PCI device group: 0x%x\n",
10724                                 phba->pci_dev_grp);
10725                 break;
10726         }
10727         return rc;
10728 }
10729
10730 /**
10731  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10732  * @pdev: pointer to PCI device.
10733  *
10734  * This routine is registered to the PCI subsystem for error handling. This
10735  * function is called after PCI bus has been reset to restart the PCI card
10736  * from scratch, as if from a cold-boot. When this routine is invoked, it
10737  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10738  * routine, which will perform the proper device reset.
10739  *
10740  * Return codes
10741  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10742  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10743  **/
10744 static pci_ers_result_t
10745 lpfc_io_slot_reset(struct pci_dev *pdev)
10746 {
10747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10748         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10749         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10750
10751         switch (phba->pci_dev_grp) {
10752         case LPFC_PCI_DEV_LP:
10753                 rc = lpfc_io_slot_reset_s3(pdev);
10754                 break;
10755         case LPFC_PCI_DEV_OC:
10756                 rc = lpfc_io_slot_reset_s4(pdev);
10757                 break;
10758         default:
10759                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10760                                 "1428 Invalid PCI device group: 0x%x\n",
10761                                 phba->pci_dev_grp);
10762                 break;
10763         }
10764         return rc;
10765 }
10766
10767 /**
10768  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10769  * @pdev: pointer to PCI device
10770  *
10771  * This routine is registered to the PCI subsystem for error handling. It
10772  * is called when kernel error recovery tells the lpfc driver that it is
10773  * OK to resume normal PCI operation after PCI bus error recovery. When
10774  * this routine is invoked, it dispatches the action to the proper SLI-3
10775  * or SLI-4 device io_resume routine, which will resume the device operation.
10776  **/
10777 static void
10778 lpfc_io_resume(struct pci_dev *pdev)
10779 {
10780         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10781         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10782
10783         switch (phba->pci_dev_grp) {
10784         case LPFC_PCI_DEV_LP:
10785                 lpfc_io_resume_s3(pdev);
10786                 break;
10787         case LPFC_PCI_DEV_OC:
10788                 lpfc_io_resume_s4(pdev);
10789                 break;
10790         default:
10791                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10792                                 "1429 Invalid PCI device group: 0x%x\n",
10793                                 phba->pci_dev_grp);
10794                 break;
10795         }
10796         return;
10797 }
10798
10799 static struct pci_device_id lpfc_id_table[] = {
10800         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10801                 PCI_ANY_ID, PCI_ANY_ID, },
10802         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10803                 PCI_ANY_ID, PCI_ANY_ID, },
10804         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10805                 PCI_ANY_ID, PCI_ANY_ID, },
10806         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10807                 PCI_ANY_ID, PCI_ANY_ID, },
10808         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10809                 PCI_ANY_ID, PCI_ANY_ID, },
10810         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10811                 PCI_ANY_ID, PCI_ANY_ID, },
10812         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10813                 PCI_ANY_ID, PCI_ANY_ID, },
10814         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10815                 PCI_ANY_ID, PCI_ANY_ID, },
10816         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10817                 PCI_ANY_ID, PCI_ANY_ID, },
10818         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10819                 PCI_ANY_ID, PCI_ANY_ID, },
10820         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10821                 PCI_ANY_ID, PCI_ANY_ID, },
10822         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10823                 PCI_ANY_ID, PCI_ANY_ID, },
10824         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10825                 PCI_ANY_ID, PCI_ANY_ID, },
10826         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10827                 PCI_ANY_ID, PCI_ANY_ID, },
10828         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10829                 PCI_ANY_ID, PCI_ANY_ID, },
10830         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10831                 PCI_ANY_ID, PCI_ANY_ID, },
10832         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10833                 PCI_ANY_ID, PCI_ANY_ID, },
10834         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10835                 PCI_ANY_ID, PCI_ANY_ID, },
10836         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10837                 PCI_ANY_ID, PCI_ANY_ID, },
10838         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10839                 PCI_ANY_ID, PCI_ANY_ID, },
10840         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10841                 PCI_ANY_ID, PCI_ANY_ID, },
10842         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10843                 PCI_ANY_ID, PCI_ANY_ID, },
10844         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10845                 PCI_ANY_ID, PCI_ANY_ID, },
10846         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10847                 PCI_ANY_ID, PCI_ANY_ID, },
10848         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10849                 PCI_ANY_ID, PCI_ANY_ID, },
10850         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10851                 PCI_ANY_ID, PCI_ANY_ID, },
10852         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10853                 PCI_ANY_ID, PCI_ANY_ID, },
10854         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10855                 PCI_ANY_ID, PCI_ANY_ID, },
10856         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10857                 PCI_ANY_ID, PCI_ANY_ID, },
10858         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10859                 PCI_ANY_ID, PCI_ANY_ID, },
10860         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10861                 PCI_ANY_ID, PCI_ANY_ID, },
10862         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10863                 PCI_ANY_ID, PCI_ANY_ID, },
10864         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10865                 PCI_ANY_ID, PCI_ANY_ID, },
10866         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10867                 PCI_ANY_ID, PCI_ANY_ID, },
10868         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10869                 PCI_ANY_ID, PCI_ANY_ID, },
10870         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10871                 PCI_ANY_ID, PCI_ANY_ID, },
10872         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10873                 PCI_ANY_ID, PCI_ANY_ID, },
10874         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10875                 PCI_ANY_ID, PCI_ANY_ID, },
10876         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10877                 PCI_ANY_ID, PCI_ANY_ID, },
10878         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10879                 PCI_ANY_ID, PCI_ANY_ID, },
10880         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10881                 PCI_ANY_ID, PCI_ANY_ID, },
10882         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10883                 PCI_ANY_ID, PCI_ANY_ID, },
10884         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10885                 PCI_ANY_ID, PCI_ANY_ID, },
10886         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10887                 PCI_ANY_ID, PCI_ANY_ID, },
10888         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10889                 PCI_ANY_ID, PCI_ANY_ID, },
10890         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10891                 PCI_ANY_ID, PCI_ANY_ID, },
10892         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10893                 PCI_ANY_ID, PCI_ANY_ID, },
10894         { 0 }
10895 };
10896
10897 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10898
10899 static const struct pci_error_handlers lpfc_err_handler = {
10900         .error_detected = lpfc_io_error_detected,
10901         .slot_reset = lpfc_io_slot_reset,
10902         .resume = lpfc_io_resume,
10903 };
10904
10905 static struct pci_driver lpfc_driver = {
10906         .name           = LPFC_DRIVER_NAME,
10907         .id_table       = lpfc_id_table,
10908         .probe          = lpfc_pci_probe_one,
10909         .remove         = lpfc_pci_remove_one,
10910         .suspend        = lpfc_pci_suspend_one,
10911         .resume         = lpfc_pci_resume_one,
10912         .err_handler    = &lpfc_err_handler,
10913 };
10914
10915 static const struct file_operations lpfc_mgmt_fop = {
10916         .owner = THIS_MODULE,
10917 };
10918
10919 static struct miscdevice lpfc_mgmt_dev = {
10920         .minor = MISC_DYNAMIC_MINOR,
10921         .name = "lpfcmgmt",
10922         .fops = &lpfc_mgmt_fop,
10923 };
10924
10925 /**
10926  * lpfc_init - lpfc module initialization routine
10927  *
10928  * This routine is to be invoked when the lpfc module is loaded into the
10929  * kernel. The special kernel macro module_init() is used to indicate the
10930  * role of this routine to the kernel as lpfc module entry point.
10931  *
10932  * Return codes
10933  *   0 - successful
10934  *   -ENOMEM - FC attach transport failed
10935  *   all others - failed
10936  */
10937 static int __init
10938 lpfc_init(void)
10939 {
10940         int cpu;
10941         int error = 0;
10942
10943         printk(LPFC_MODULE_DESC "\n");
10944         printk(LPFC_COPYRIGHT "\n");
10945
10946         error = misc_register(&lpfc_mgmt_dev);
10947         if (error)
10948                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10949                         "misc_register returned with status %d", error);
10950
10951         if (lpfc_enable_npiv) {
10952                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10953                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10954         }
10955         lpfc_transport_template =
10956                                 fc_attach_transport(&lpfc_transport_functions);
10957         if (lpfc_transport_template == NULL)
10958                 return -ENOMEM;
10959         if (lpfc_enable_npiv) {
10960                 lpfc_vport_transport_template =
10961                         fc_attach_transport(&lpfc_vport_transport_functions);
10962                 if (lpfc_vport_transport_template == NULL) {
10963                         fc_release_transport(lpfc_transport_template);
10964                         return -ENOMEM;
10965                 }
10966         }
10967
10968         /* Initialize in case vector mapping is needed */
10969         lpfc_used_cpu = NULL;
10970         lpfc_present_cpu = 0;
10971         for_each_present_cpu(cpu)
10972                 lpfc_present_cpu++;
10973
10974         error = pci_register_driver(&lpfc_driver);
10975         if (error) {
10976                 fc_release_transport(lpfc_transport_template);
10977                 if (lpfc_enable_npiv)
10978                         fc_release_transport(lpfc_vport_transport_template);
10979         }
10980
10981         return error;
10982 }
10983
10984 /**
10985  * lpfc_exit - lpfc module removal routine
10986  *
10987  * This routine is invoked when the lpfc module is removed from the kernel.
10988  * The special kernel macro module_exit() is used to indicate the role of
10989  * this routine to the kernel as lpfc module exit point.
10990  */
10991 static void __exit
10992 lpfc_exit(void)
10993 {
10994         misc_deregister(&lpfc_mgmt_dev);
10995         pci_unregister_driver(&lpfc_driver);
10996         fc_release_transport(lpfc_transport_template);
10997         if (lpfc_enable_npiv)
10998                 fc_release_transport(lpfc_vport_transport_template);
10999         if (_dump_buf_data) {
11000                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11001                                 "_dump_buf_data at 0x%p\n",
11002                                 (1L << _dump_buf_data_order), _dump_buf_data);
11003                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11004         }
11005
11006         if (_dump_buf_dif) {
11007                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11008                                 "_dump_buf_dif at 0x%p\n",
11009                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11010                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11011         }
11012         kfree(lpfc_used_cpu);
11013 }
11014
11015 module_init(lpfc_init);
11016 module_exit(lpfc_exit);
11017 MODULE_LICENSE("GPL");
11018 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11019 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11020 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);