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) 2004-2014 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 static int
 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb))) {
 703                 /* Reset link speed to auto */
 704                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 705                         "1302 Invalid speed for this board:%d "
 706                         "Reset link speed to auto.\n",
 707                         phba->cfg_link_speed);
 708                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 709         }
 710         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 712         if (phba->sli_rev < LPFC_SLI_REV4)
 713                 lpfc_set_loopback_flag(phba);
 714         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 715         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 717                         "0498 Adapter failed to init, mbxCmd x%x "
 718                         "INIT_LINK, mbxStatus x%x\n",
 719                         mb->mbxCommand, mb->mbxStatus);
 720                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 721                         /* Clear all interrupt enable conditions */
 722                         writel(0, phba->HCregaddr);
 723                         readl(phba->HCregaddr); /* flush */
 724                         /* Clear all pending interrupts */
 725                         writel(0xffffffff, phba->HAregaddr);
 726                         readl(phba->HAregaddr); /* flush */
 727                 }
 728                 phba->link_state = LPFC_HBA_ERROR;
 729                 if (rc != MBX_BUSY || flag == MBX_POLL)
 730                         mempool_free(pmb, phba->mbox_mem_pool);
 731                 return -EIO;
 732         }
 733         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 734         if (flag == MBX_POLL)
 735                 mempool_free(pmb, phba->mbox_mem_pool);
 736
 737         return 0;
 738 }
 739
 740 /**
 741  * lpfc_hba_down_link - this routine downs the FC link
 742  * @phba: pointer to lpfc hba data structure.
 743  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 744  *
 745  * This routine will issue the DOWN_LINK mailbox command call.
 746  * It is available to other drivers through the lpfc_hba data
 747  * structure for use to stop the link.
 748  *
 749  * Return code
 750  *              0 - success
 751  *              Any other value - error
 752  **/
 753 static int
 754 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 755 {
 756         LPFC_MBOXQ_t *pmb;
 757         int rc;
 758
 759         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 760         if (!pmb) {
 761                 phba->link_state = LPFC_HBA_ERROR;
 762                 return -ENOMEM;
 763         }
 764
 765         lpfc_printf_log(phba,
 766                 KERN_ERR, LOG_INIT,
 767                 "0491 Adapter Link is disabled.\n");
 768         lpfc_down_link(phba, pmb);
 769         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 770         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 771         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 772                 lpfc_printf_log(phba,
 773                 KERN_ERR, LOG_INIT,
 774                 "2522 Adapter failed to issue DOWN_LINK"
 775                 " mbox command rc 0x%x\n", rc);
 776
 777                 mempool_free(pmb, phba->mbox_mem_pool);
 778                 return -EIO;
 779         }
 780         if (flag == MBX_POLL)
 781                 mempool_free(pmb, phba->mbox_mem_pool);
 782
 783         return 0;
 784 }
 785
 786 /**
 787  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 788  * @phba: pointer to lpfc HBA data structure.
 789  *
 790  * This routine will do LPFC uninitialization before the HBA is reset when
 791  * bringing down the SLI Layer.
 792  *
 793  * Return codes
 794  *   0 - success.
 795  *   Any other value - error.
 796  **/
 797 int
 798 lpfc_hba_down_prep(struct lpfc_hba *phba)
 799 {
 800         struct lpfc_vport **vports;
 801         int i;
 802
 803         if (phba->sli_rev <= LPFC_SLI_REV3) {
 804                 /* Disable interrupts */
 805                 writel(0, phba->HCregaddr);
 806                 readl(phba->HCregaddr); /* flush */
 807         }
 808
 809         if (phba->pport->load_flag & FC_UNLOADING)
 810                 lpfc_cleanup_discovery_resources(phba->pport);
 811         else {
 812                 vports = lpfc_create_vport_work_array(phba);
 813                 if (vports != NULL)
 814                         for (i = 0; i <= phba->max_vports &&
 815                                 vports[i] != NULL; i++)
 816                                 lpfc_cleanup_discovery_resources(vports[i]);
 817                 lpfc_destroy_vport_work_array(phba, vports);
 818         }
 819         return 0;
 820 }
 821
 822 /**
 823  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 824  * rspiocb which got deferred
 825  *
 826  * @phba: pointer to lpfc HBA data structure.
 827  *
 828  * This routine will cleanup completed slow path events after HBA is reset
 829  * when bringing down the SLI Layer.
 830  *
 831  *
 832  * Return codes
 833  *   void.
 834  **/
 835 static void
 836 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 837 {
 838         struct lpfc_iocbq *rspiocbq;
 839         struct hbq_dmabuf *dmabuf;
 840         struct lpfc_cq_event *cq_event;
 841
 842         spin_lock_irq(&phba->hbalock);
 843         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 844         spin_unlock_irq(&phba->hbalock);
 845
 846         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 847                 /* Get the response iocb from the head of work queue */
 848                 spin_lock_irq(&phba->hbalock);
 849                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 850                                  cq_event, struct lpfc_cq_event, list);
 851                 spin_unlock_irq(&phba->hbalock);
 852
 853                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 854                 case CQE_CODE_COMPL_WQE:
 855                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 856                                                  cq_event);
 857                         lpfc_sli_release_iocbq(phba, rspiocbq);
 858                         break;
 859                 case CQE_CODE_RECEIVE:
 860                 case CQE_CODE_RECEIVE_V1:
 861                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 862                                               cq_event);
 863                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 864                 }
 865         }
 866 }
 867
 868 /**
 869  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 870  * @phba: pointer to lpfc HBA data structure.
 871  *
 872  * This routine will cleanup posted ELS buffers after the HBA is reset
 873  * when bringing down the SLI Layer.
 874  *
 875  *
 876  * Return codes
 877  *   void.
 878  **/
 879 static void
 880 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 881 {
 882         struct lpfc_sli *psli = &phba->sli;
 883         struct lpfc_sli_ring *pring;
 884         struct lpfc_dmabuf *mp, *next_mp;
 885         LIST_HEAD(buflist);
 886         int count;
 887
 888         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 889                 lpfc_sli_hbqbuf_free_all(phba);
 890         else {
 891                 /* Cleanup preposted buffers on the ELS ring */
 892                 pring = &psli->ring[LPFC_ELS_RING];
 893                 spin_lock_irq(&phba->hbalock);
 894                 list_splice_init(&pring->postbufq, &buflist);
 895                 spin_unlock_irq(&phba->hbalock);
 896
 897                 count = 0;
 898                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 899                         list_del(&mp->list);
 900                         count++;
 901                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 902                         kfree(mp);
 903                 }
 904
 905                 spin_lock_irq(&phba->hbalock);
 906                 pring->postbufq_cnt -= count;
 907                 spin_unlock_irq(&phba->hbalock);
 908         }
 909 }
 910
 911 /**
 912  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 913  * @phba: pointer to lpfc HBA data structure.
 914  *
 915  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 916  * down the SLI Layer.
 917  *
 918  * Return codes
 919  *   void
 920  **/
 921 static void
 922 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 923 {
 924         struct lpfc_sli *psli = &phba->sli;
 925         struct lpfc_sli_ring *pring;
 926         LIST_HEAD(completions);
 927         int i;
 928
 929         for (i = 0; i < psli->num_rings; i++) {
 930                 pring = &psli->ring[i];
 931                 if (phba->sli_rev >= LPFC_SLI_REV4)
 932                         spin_lock_irq(&pring->ring_lock);
 933                 else
 934                         spin_lock_irq(&phba->hbalock);
 935                 /* At this point in time the HBA is either reset or DOA. Either
 936                  * way, nothing should be on txcmplq as it will NEVER complete.
 937                  */
 938                 list_splice_init(&pring->txcmplq, &completions);
 939                 pring->txcmplq_cnt = 0;
 940
 941                 if (phba->sli_rev >= LPFC_SLI_REV4)
 942                         spin_unlock_irq(&pring->ring_lock);
 943                 else
 944                         spin_unlock_irq(&phba->hbalock);
 945
 946                 /* Cancel all the IOCBs from the completions list */
 947                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 948                                       IOERR_SLI_ABORTED);
 949                 lpfc_sli_abort_iocb_ring(phba, pring);
 950         }
 951 }
 952
 953 /**
 954  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 955         int i;
 956  * @phba: pointer to lpfc HBA data structure.
 957  *
 958  * This routine will do uninitialization after the HBA is reset when bring
 959  * down the SLI Layer.
 960  *
 961  * Return codes
 962  *   0 - success.
 963  *   Any other value - error.
 964  **/
 965 static int
 966 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 967 {
 968         lpfc_hba_free_post_buf(phba);
 969         lpfc_hba_clean_txcmplq(phba);
 970         return 0;
 971 }
 972
 973 /**
 974  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 975  * @phba: pointer to lpfc HBA data structure.
 976  *
 977  * This routine will do uninitialization after the HBA is reset when bring
 978  * down the SLI Layer.
 979  *
 980  * Return codes
 981  *   0 - success.
 982  *   Any other value - error.
 983  **/
 984 static int
 985 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 986 {
 987         struct lpfc_scsi_buf *psb, *psb_next;
 988         LIST_HEAD(aborts);
 989         unsigned long iflag = 0;
 990         struct lpfc_sglq *sglq_entry = NULL;
 991         struct lpfc_sli *psli = &phba->sli;
 992         struct lpfc_sli_ring *pring;
 993
 994         lpfc_hba_free_post_buf(phba);
 995         lpfc_hba_clean_txcmplq(phba);
 996         pring = &psli->ring[LPFC_ELS_RING];
 997
 998         /* At this point in time the HBA is either reset or DOA. Either
 999          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1000          * on the lpfc_sgl_list so that it can either be freed if the
1001          * driver is unloading or reposted if the driver is restarting
1002          * the port.
1003          */
1004         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1005                                         /* scsl_buf_list */
1006         /* abts_sgl_list_lock required because worker thread uses this
1007          * list.
1008          */
1009         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1010         list_for_each_entry(sglq_entry,
1011                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1012                 sglq_entry->state = SGL_FREED;
1013
1014         spin_lock(&pring->ring_lock);
1015         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1016                         &phba->sli4_hba.lpfc_sgl_list);
1017         spin_unlock(&pring->ring_lock);
1018         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1019         /* abts_scsi_buf_list_lock required because worker thread uses this
1020          * list.
1021          */
1022         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1023         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1024                         &aborts);
1025         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026         spin_unlock_irq(&phba->hbalock);
1027
1028         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1029                 psb->pCmd = NULL;
1030                 psb->status = IOSTAT_SUCCESS;
1031         }
1032         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1033         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1034         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1035
1036         lpfc_sli4_free_sp_events(phba);
1037         return 0;
1038 }
1039
1040 /**
1041  * lpfc_hba_down_post - Wrapper func for hba down post routine
1042  * @phba: pointer to lpfc HBA data structure.
1043  *
1044  * This routine wraps the actual SLI3 or SLI4 routine for performing
1045  * uninitialization after the HBA is reset when bring down the SLI Layer.
1046  *
1047  * Return codes
1048  *   0 - success.
1049  *   Any other value - error.
1050  **/
1051 int
1052 lpfc_hba_down_post(struct lpfc_hba *phba)
1053 {
1054         return (*phba->lpfc_hba_down_post)(phba);
1055 }
1056
1057 /**
1058  * lpfc_hb_timeout - The HBA-timer timeout handler
1059  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1060  *
1061  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1062  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1063  * work-port-events bitmap and the worker thread is notified. This timeout
1064  * event will be used by the worker thread to invoke the actual timeout
1065  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1066  * be performed in the timeout handler and the HBA timeout event bit shall
1067  * be cleared by the worker thread after it has taken the event bitmap out.
1068  **/
1069 static void
1070 lpfc_hb_timeout(unsigned long ptr)
1071 {
1072         struct lpfc_hba *phba;
1073         uint32_t tmo_posted;
1074         unsigned long iflag;
1075
1076         phba = (struct lpfc_hba *)ptr;
1077
1078         /* Check for heart beat timeout conditions */
1079         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1080         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1081         if (!tmo_posted)
1082                 phba->pport->work_port_events |= WORKER_HB_TMO;
1083         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1084
1085         /* Tell the worker thread there is work to do */
1086         if (!tmo_posted)
1087                 lpfc_worker_wake_up(phba);
1088         return;
1089 }
1090
1091 /**
1092  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1093  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1094  *
1095  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1096  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1097  * work-port-events bitmap and the worker thread is notified. This timeout
1098  * event will be used by the worker thread to invoke the actual timeout
1099  * handler routine, lpfc_rrq_handler. Any periodical operations will
1100  * be performed in the timeout handler and the RRQ timeout event bit shall
1101  * be cleared by the worker thread after it has taken the event bitmap out.
1102  **/
1103 static void
1104 lpfc_rrq_timeout(unsigned long ptr)
1105 {
1106         struct lpfc_hba *phba;
1107         unsigned long iflag;
1108
1109         phba = (struct lpfc_hba *)ptr;
1110         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1111         if (!(phba->pport->load_flag & FC_UNLOADING))
1112                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1113         else
1114                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1115         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1116
1117         if (!(phba->pport->load_flag & FC_UNLOADING))
1118                 lpfc_worker_wake_up(phba);
1119 }
1120
1121 /**
1122  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1123  * @phba: pointer to lpfc hba data structure.
1124  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1125  *
1126  * This is the callback function to the lpfc heart-beat mailbox command.
1127  * If configured, the lpfc driver issues the heart-beat mailbox command to
1128  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1129  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1130  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1131  * heart-beat outstanding state. Once the mailbox command comes back and
1132  * no error conditions detected, the heart-beat mailbox command timer is
1133  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1134  * state is cleared for the next heart-beat. If the timer expired with the
1135  * heart-beat outstanding state set, the driver will put the HBA offline.
1136  **/
1137 static void
1138 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1139 {
1140         unsigned long drvr_flag;
1141
1142         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1143         phba->hb_outstanding = 0;
1144         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1145
1146         /* Check and reset heart-beat timer is necessary */
1147         mempool_free(pmboxq, phba->mbox_mem_pool);
1148         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1149                 !(phba->link_state == LPFC_HBA_ERROR) &&
1150                 !(phba->pport->load_flag & FC_UNLOADING))
1151                 mod_timer(&phba->hb_tmofunc,
1152                           jiffies +
1153                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1159  * @phba: pointer to lpfc hba data structure.
1160  *
1161  * This is the actual HBA-timer timeout handler to be invoked by the worker
1162  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1163  * handler performs any periodic operations needed for the device. If such
1164  * periodic event has already been attended to either in the interrupt handler
1165  * or by processing slow-ring or fast-ring events within the HBA-timer
1166  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1167  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1168  * is configured and there is no heart-beat mailbox command outstanding, a
1169  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1170  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1171  * to offline.
1172  **/
1173 void
1174 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1175 {
1176         struct lpfc_vport **vports;
1177         LPFC_MBOXQ_t *pmboxq;
1178         struct lpfc_dmabuf *buf_ptr;
1179         int retval, i;
1180         struct lpfc_sli *psli = &phba->sli;
1181         LIST_HEAD(completions);
1182
1183         vports = lpfc_create_vport_work_array(phba);
1184         if (vports != NULL)
1185                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1186                         lpfc_rcv_seq_check_edtov(vports[i]);
1187         lpfc_destroy_vport_work_array(phba, vports);
1188
1189         if ((phba->link_state == LPFC_HBA_ERROR) ||
1190                 (phba->pport->load_flag & FC_UNLOADING) ||
1191                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1192                 return;
1193
1194         spin_lock_irq(&phba->pport->work_port_lock);
1195
1196         if (time_after(phba->last_completion_time +
1197                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1198                         jiffies)) {
1199                 spin_unlock_irq(&phba->pport->work_port_lock);
1200                 if (!phba->hb_outstanding)
1201                         mod_timer(&phba->hb_tmofunc,
1202                                 jiffies +
1203                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1204                 else
1205                         mod_timer(&phba->hb_tmofunc,
1206                                 jiffies +
1207                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1208                 return;
1209         }
1210         spin_unlock_irq(&phba->pport->work_port_lock);
1211
1212         if (phba->elsbuf_cnt &&
1213                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1214                 spin_lock_irq(&phba->hbalock);
1215                 list_splice_init(&phba->elsbuf, &completions);
1216                 phba->elsbuf_cnt = 0;
1217                 phba->elsbuf_prev_cnt = 0;
1218                 spin_unlock_irq(&phba->hbalock);
1219
1220                 while (!list_empty(&completions)) {
1221                         list_remove_head(&completions, buf_ptr,
1222                                 struct lpfc_dmabuf, list);
1223                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1224                         kfree(buf_ptr);
1225                 }
1226         }
1227         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1228
1229         /* If there is no heart beat outstanding, issue a heartbeat command */
1230         if (phba->cfg_enable_hba_heartbeat) {
1231                 if (!phba->hb_outstanding) {
1232                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1233                                 (list_empty(&psli->mboxq))) {
1234                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1235                                                         GFP_KERNEL);
1236                                 if (!pmboxq) {
1237                                         mod_timer(&phba->hb_tmofunc,
1238                                                  jiffies +
1239                                                  msecs_to_jiffies(1000 *
1240                                                  LPFC_HB_MBOX_INTERVAL));
1241                                         return;
1242                                 }
1243
1244                                 lpfc_heart_beat(phba, pmboxq);
1245                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1246                                 pmboxq->vport = phba->pport;
1247                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1248                                                 MBX_NOWAIT);
1249
1250                                 if (retval != MBX_BUSY &&
1251                                         retval != MBX_SUCCESS) {
1252                                         mempool_free(pmboxq,
1253                                                         phba->mbox_mem_pool);
1254                                         mod_timer(&phba->hb_tmofunc,
1255                                                 jiffies +
1256                                                 msecs_to_jiffies(1000 *
1257                                                 LPFC_HB_MBOX_INTERVAL));
1258                                         return;
1259                                 }
1260                                 phba->skipped_hb = 0;
1261                                 phba->hb_outstanding = 1;
1262                         } else if (time_before_eq(phba->last_completion_time,
1263                                         phba->skipped_hb)) {
1264                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1265                                         "2857 Last completion time not "
1266                                         " updated in %d ms\n",
1267                                         jiffies_to_msecs(jiffies
1268                                                  - phba->last_completion_time));
1269                         } else
1270                                 phba->skipped_hb = jiffies;
1271
1272                         mod_timer(&phba->hb_tmofunc,
1273                                  jiffies +
1274                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1275                         return;
1276                 } else {
1277                         /*
1278                         * If heart beat timeout called with hb_outstanding set
1279                         * we need to give the hb mailbox cmd a chance to
1280                         * complete or TMO.
1281                         */
1282                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1283                                         "0459 Adapter heartbeat still out"
1284                                         "standing:last compl time was %d ms.\n",
1285                                         jiffies_to_msecs(jiffies
1286                                                  - phba->last_completion_time));
1287                         mod_timer(&phba->hb_tmofunc,
1288                                 jiffies +
1289                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1290                 }
1291         }
1292 }
1293
1294 /**
1295  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1296  * @phba: pointer to lpfc hba data structure.
1297  *
1298  * This routine is called to bring the HBA offline when HBA hardware error
1299  * other than Port Error 6 has been detected.
1300  **/
1301 static void
1302 lpfc_offline_eratt(struct lpfc_hba *phba)
1303 {
1304         struct lpfc_sli   *psli = &phba->sli;
1305
1306         spin_lock_irq(&phba->hbalock);
1307         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1308         spin_unlock_irq(&phba->hbalock);
1309         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1310
1311         lpfc_offline(phba);
1312         lpfc_reset_barrier(phba);
1313         spin_lock_irq(&phba->hbalock);
1314         lpfc_sli_brdreset(phba);
1315         spin_unlock_irq(&phba->hbalock);
1316         lpfc_hba_down_post(phba);
1317         lpfc_sli_brdready(phba, HS_MBRDY);
1318         lpfc_unblock_mgmt_io(phba);
1319         phba->link_state = LPFC_HBA_ERROR;
1320         return;
1321 }
1322
1323 /**
1324  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1325  * @phba: pointer to lpfc hba data structure.
1326  *
1327  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1328  * other than Port Error 6 has been detected.
1329  **/
1330 void
1331 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1332 {
1333         spin_lock_irq(&phba->hbalock);
1334         phba->link_state = LPFC_HBA_ERROR;
1335         spin_unlock_irq(&phba->hbalock);
1336
1337         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1338         lpfc_offline(phba);
1339         lpfc_hba_down_post(phba);
1340         lpfc_unblock_mgmt_io(phba);
1341 }
1342
1343 /**
1344  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1345  * @phba: pointer to lpfc hba data structure.
1346  *
1347  * This routine is invoked to handle the deferred HBA hardware error
1348  * conditions. This type of error is indicated by HBA by setting ER1
1349  * and another ER bit in the host status register. The driver will
1350  * wait until the ER1 bit clears before handling the error condition.
1351  **/
1352 static void
1353 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1354 {
1355         uint32_t old_host_status = phba->work_hs;
1356         struct lpfc_sli *psli = &phba->sli;
1357
1358         /* If the pci channel is offline, ignore possible errors,
1359          * since we cannot communicate with the pci card anyway.
1360          */
1361         if (pci_channel_offline(phba->pcidev)) {
1362                 spin_lock_irq(&phba->hbalock);
1363                 phba->hba_flag &= ~DEFER_ERATT;
1364                 spin_unlock_irq(&phba->hbalock);
1365                 return;
1366         }
1367
1368         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1369                 "0479 Deferred Adapter Hardware Error "
1370                 "Data: x%x x%x x%x\n",
1371                 phba->work_hs,
1372                 phba->work_status[0], phba->work_status[1]);
1373
1374         spin_lock_irq(&phba->hbalock);
1375         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1376         spin_unlock_irq(&phba->hbalock);
1377
1378
1379         /*
1380          * Firmware stops when it triggred erratt. That could cause the I/Os
1381          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1382          * SCSI layer retry it after re-establishing link.
1383          */
1384         lpfc_sli_abort_fcp_rings(phba);
1385
1386         /*
1387          * There was a firmware error. Take the hba offline and then
1388          * attempt to restart it.
1389          */
1390         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1391         lpfc_offline(phba);
1392
1393         /* Wait for the ER1 bit to clear.*/
1394         while (phba->work_hs & HS_FFER1) {
1395                 msleep(100);
1396                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1397                         phba->work_hs = UNPLUG_ERR ;
1398                         break;
1399                 }
1400                 /* If driver is unloading let the worker thread continue */
1401                 if (phba->pport->load_flag & FC_UNLOADING) {
1402                         phba->work_hs = 0;
1403                         break;
1404                 }
1405         }
1406
1407         /*
1408          * This is to ptrotect against a race condition in which
1409          * first write to the host attention register clear the
1410          * host status register.
1411          */
1412         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1413                 phba->work_hs = old_host_status & ~HS_FFER1;
1414
1415         spin_lock_irq(&phba->hbalock);
1416         phba->hba_flag &= ~DEFER_ERATT;
1417         spin_unlock_irq(&phba->hbalock);
1418         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1419         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1420 }
1421
1422 static void
1423 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1424 {
1425         struct lpfc_board_event_header board_event;
1426         struct Scsi_Host *shost;
1427
1428         board_event.event_type = FC_REG_BOARD_EVENT;
1429         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1430         shost = lpfc_shost_from_vport(phba->pport);
1431         fc_host_post_vendor_event(shost, fc_get_event_number(),
1432                                   sizeof(board_event),
1433                                   (char *) &board_event,
1434                                   LPFC_NL_VENDOR_ID);
1435 }
1436
1437 /**
1438  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1439  * @phba: pointer to lpfc hba data structure.
1440  *
1441  * This routine is invoked to handle the following HBA hardware error
1442  * conditions:
1443  * 1 - HBA error attention interrupt
1444  * 2 - DMA ring index out of range
1445  * 3 - Mailbox command came back as unknown
1446  **/
1447 static void
1448 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1449 {
1450         struct lpfc_vport *vport = phba->pport;
1451         struct lpfc_sli   *psli = &phba->sli;
1452         uint32_t event_data;
1453         unsigned long temperature;
1454         struct temp_event temp_event_data;
1455         struct Scsi_Host  *shost;
1456
1457         /* If the pci channel is offline, ignore possible errors,
1458          * since we cannot communicate with the pci card anyway.
1459          */
1460         if (pci_channel_offline(phba->pcidev)) {
1461                 spin_lock_irq(&phba->hbalock);
1462                 phba->hba_flag &= ~DEFER_ERATT;
1463                 spin_unlock_irq(&phba->hbalock);
1464                 return;
1465         }
1466
1467         /* If resets are disabled then leave the HBA alone and return */
1468         if (!phba->cfg_enable_hba_reset)
1469                 return;
1470
1471         /* Send an internal error event to mgmt application */
1472         lpfc_board_errevt_to_mgmt(phba);
1473
1474         if (phba->hba_flag & DEFER_ERATT)
1475                 lpfc_handle_deferred_eratt(phba);
1476
1477         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1478                 if (phba->work_hs & HS_FFER6)
1479                         /* Re-establishing Link */
1480                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1481                                         "1301 Re-establishing Link "
1482                                         "Data: x%x x%x x%x\n",
1483                                         phba->work_hs, phba->work_status[0],
1484                                         phba->work_status[1]);
1485                 if (phba->work_hs & HS_FFER8)
1486                         /* Device Zeroization */
1487                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1488                                         "2861 Host Authentication device "
1489                                         "zeroization Data:x%x x%x x%x\n",
1490                                         phba->work_hs, phba->work_status[0],
1491                                         phba->work_status[1]);
1492
1493                 spin_lock_irq(&phba->hbalock);
1494                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1495                 spin_unlock_irq(&phba->hbalock);
1496
1497                 /*
1498                 * Firmware stops when it triggled erratt with HS_FFER6.
1499                 * That could cause the I/Os dropped by the firmware.
1500                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1501                 * retry it after re-establishing link.
1502                 */
1503                 lpfc_sli_abort_fcp_rings(phba);
1504
1505                 /*
1506                  * There was a firmware error.  Take the hba offline and then
1507                  * attempt to restart it.
1508                  */
1509                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1510                 lpfc_offline(phba);
1511                 lpfc_sli_brdrestart(phba);
1512                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1513                         lpfc_unblock_mgmt_io(phba);
1514                         return;
1515                 }
1516                 lpfc_unblock_mgmt_io(phba);
1517         } else if (phba->work_hs & HS_CRIT_TEMP) {
1518                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1519                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1520                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1521                 temp_event_data.data = (uint32_t)temperature;
1522
1523                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1524                                 "0406 Adapter maximum temperature exceeded "
1525                                 "(%ld), taking this port offline "
1526                                 "Data: x%x x%x x%x\n",
1527                                 temperature, phba->work_hs,
1528                                 phba->work_status[0], phba->work_status[1]);
1529
1530                 shost = lpfc_shost_from_vport(phba->pport);
1531                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1532                                           sizeof(temp_event_data),
1533                                           (char *) &temp_event_data,
1534                                           SCSI_NL_VID_TYPE_PCI
1535                                           | PCI_VENDOR_ID_EMULEX);
1536
1537                 spin_lock_irq(&phba->hbalock);
1538                 phba->over_temp_state = HBA_OVER_TEMP;
1539                 spin_unlock_irq(&phba->hbalock);
1540                 lpfc_offline_eratt(phba);
1541
1542         } else {
1543                 /* The if clause above forces this code path when the status
1544                  * failure is a value other than FFER6. Do not call the offline
1545                  * twice. This is the adapter hardware error path.
1546                  */
1547                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1548                                 "0457 Adapter Hardware Error "
1549                                 "Data: x%x x%x x%x\n",
1550                                 phba->work_hs,
1551                                 phba->work_status[0], phba->work_status[1]);
1552
1553                 event_data = FC_REG_DUMP_EVENT;
1554                 shost = lpfc_shost_from_vport(vport);
1555                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1556                                 sizeof(event_data), (char *) &event_data,
1557                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1558
1559                 lpfc_offline_eratt(phba);
1560         }
1561         return;
1562 }
1563
1564 /**
1565  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1566  * @phba: pointer to lpfc hba data structure.
1567  * @mbx_action: flag for mailbox shutdown action.
1568  *
1569  * This routine is invoked to perform an SLI4 port PCI function reset in
1570  * response to port status register polling attention. It waits for port
1571  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1572  * During this process, interrupt vectors are freed and later requested
1573  * for handling possible port resource change.
1574  **/
1575 static int
1576 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1577                             bool en_rn_msg)
1578 {
1579         int rc;
1580         uint32_t intr_mode;
1581
1582         /*
1583          * On error status condition, driver need to wait for port
1584          * ready before performing reset.
1585          */
1586         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1587         if (!rc) {
1588                 /* need reset: attempt for port recovery */
1589                 if (en_rn_msg)
1590                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1591                                         "2887 Reset Needed: Attempting Port "
1592                                         "Recovery...\n");
1593                 lpfc_offline_prep(phba, mbx_action);
1594                 lpfc_offline(phba);
1595                 /* release interrupt for possible resource change */
1596                 lpfc_sli4_disable_intr(phba);
1597                 lpfc_sli_brdrestart(phba);
1598                 /* request and enable interrupt */
1599                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1600                 if (intr_mode == LPFC_INTR_ERROR) {
1601                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1602                                         "3175 Failed to enable interrupt\n");
1603                         return -EIO;
1604                 } else {
1605                         phba->intr_mode = intr_mode;
1606                 }
1607                 rc = lpfc_online(phba);
1608                 if (rc == 0)
1609                         lpfc_unblock_mgmt_io(phba);
1610         }
1611         return rc;
1612 }
1613
1614 /**
1615  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1616  * @phba: pointer to lpfc hba data structure.
1617  *
1618  * This routine is invoked to handle the SLI4 HBA hardware error attention
1619  * conditions.
1620  **/
1621 static void
1622 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_vport *vport = phba->pport;
1625         uint32_t event_data;
1626         struct Scsi_Host *shost;
1627         uint32_t if_type;
1628         struct lpfc_register portstat_reg = {0};
1629         uint32_t reg_err1, reg_err2;
1630         uint32_t uerrlo_reg, uemasklo_reg;
1631         uint32_t pci_rd_rc1, pci_rd_rc2;
1632         bool en_rn_msg = true;
1633         struct temp_event temp_event_data;
1634         int rc;
1635
1636         /* If the pci channel is offline, ignore possible errors, since
1637          * we cannot communicate with the pci card anyway.
1638          */
1639         if (pci_channel_offline(phba->pcidev))
1640                 return;
1641
1642         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1643         switch (if_type) {
1644         case LPFC_SLI_INTF_IF_TYPE_0:
1645                 pci_rd_rc1 = lpfc_readl(
1646                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1647                                 &uerrlo_reg);
1648                 pci_rd_rc2 = lpfc_readl(
1649                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1650                                 &uemasklo_reg);
1651                 /* consider PCI bus read error as pci_channel_offline */
1652                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1653                         return;
1654                 lpfc_sli4_offline_eratt(phba);
1655                 break;
1656
1657         case LPFC_SLI_INTF_IF_TYPE_2:
1658                 pci_rd_rc1 = lpfc_readl(
1659                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1660                                 &portstat_reg.word0);
1661                 /* consider PCI bus read error as pci_channel_offline */
1662                 if (pci_rd_rc1 == -EIO) {
1663                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1664                                 "3151 PCI bus read access failure: x%x\n",
1665                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1666                         return;
1667                 }
1668                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1669                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1670                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1671                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1672                                 "2889 Port Overtemperature event, "
1673                                 "taking port offline Data: x%x x%x\n",
1674                                 reg_err1, reg_err2);
1675
1676                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1677                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1678                         temp_event_data.data = 0xFFFFFFFF;
1679
1680                         shost = lpfc_shost_from_vport(phba->pport);
1681                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1682                                                   sizeof(temp_event_data),
1683                                                   (char *)&temp_event_data,
1684                                                   SCSI_NL_VID_TYPE_PCI
1685                                                   | PCI_VENDOR_ID_EMULEX);
1686
1687                         spin_lock_irq(&phba->hbalock);
1688                         phba->over_temp_state = HBA_OVER_TEMP;
1689                         spin_unlock_irq(&phba->hbalock);
1690                         lpfc_sli4_offline_eratt(phba);
1691                         return;
1692                 }
1693                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1694                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1696                                         "3143 Port Down: Firmware Update "
1697                                         "Detected\n");
1698                         en_rn_msg = false;
1699                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1700                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1701                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1702                                         "3144 Port Down: Debug Dump\n");
1703                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1704                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1705                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1706                                         "3145 Port Down: Provisioning\n");
1707
1708                 /* If resets are disabled then leave the HBA alone and return */
1709                 if (!phba->cfg_enable_hba_reset)
1710                         return;
1711
1712                 /* Check port status register for function reset */
1713                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1714                                 en_rn_msg);
1715                 if (rc == 0) {
1716                         /* don't report event on forced debug dump */
1717                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1718                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1719                                 return;
1720                         else
1721                                 break;
1722                 }
1723                 /* fall through for not able to recover */
1724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1725                                 "3152 Unrecoverable error, bring the port "
1726                                 "offline\n");
1727                 lpfc_sli4_offline_eratt(phba);
1728                 break;
1729         case LPFC_SLI_INTF_IF_TYPE_1:
1730         default:
1731                 break;
1732         }
1733         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1734                         "3123 Report dump event to upper layer\n");
1735         /* Send an internal error event to mgmt application */
1736         lpfc_board_errevt_to_mgmt(phba);
1737
1738         event_data = FC_REG_DUMP_EVENT;
1739         shost = lpfc_shost_from_vport(vport);
1740         fc_host_post_vendor_event(shost, fc_get_event_number(),
1741                                   sizeof(event_data), (char *) &event_data,
1742                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1743 }
1744
1745 /**
1746  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1747  * @phba: pointer to lpfc HBA data structure.
1748  *
1749  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1750  * routine from the API jump table function pointer from the lpfc_hba struct.
1751  *
1752  * Return codes
1753  *   0 - success.
1754  *   Any other value - error.
1755  **/
1756 void
1757 lpfc_handle_eratt(struct lpfc_hba *phba)
1758 {
1759         (*phba->lpfc_handle_eratt)(phba);
1760 }
1761
1762 /**
1763  * lpfc_handle_latt - The HBA link event handler
1764  * @phba: pointer to lpfc hba data structure.
1765  *
1766  * This routine is invoked from the worker thread to handle a HBA host
1767  * attention link event.
1768  **/
1769 void
1770 lpfc_handle_latt(struct lpfc_hba *phba)
1771 {
1772         struct lpfc_vport *vport = phba->pport;
1773         struct lpfc_sli   *psli = &phba->sli;
1774         LPFC_MBOXQ_t *pmb;
1775         volatile uint32_t control;
1776         struct lpfc_dmabuf *mp;
1777         int rc = 0;
1778
1779         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1780         if (!pmb) {
1781                 rc = 1;
1782                 goto lpfc_handle_latt_err_exit;
1783         }
1784
1785         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1786         if (!mp) {
1787                 rc = 2;
1788                 goto lpfc_handle_latt_free_pmb;
1789         }
1790
1791         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1792         if (!mp->virt) {
1793                 rc = 3;
1794                 goto lpfc_handle_latt_free_mp;
1795         }
1796
1797         /* Cleanup any outstanding ELS commands */
1798         lpfc_els_flush_all_cmd(phba);
1799
1800         psli->slistat.link_event++;
1801         lpfc_read_topology(phba, pmb, mp);
1802         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1803         pmb->vport = vport;
1804         /* Block ELS IOCBs until we have processed this mbox command */
1805         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1806         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1807         if (rc == MBX_NOT_FINISHED) {
1808                 rc = 4;
1809                 goto lpfc_handle_latt_free_mbuf;
1810         }
1811
1812         /* Clear Link Attention in HA REG */
1813         spin_lock_irq(&phba->hbalock);
1814         writel(HA_LATT, phba->HAregaddr);
1815         readl(phba->HAregaddr); /* flush */
1816         spin_unlock_irq(&phba->hbalock);
1817
1818         return;
1819
1820 lpfc_handle_latt_free_mbuf:
1821         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1822         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1823 lpfc_handle_latt_free_mp:
1824         kfree(mp);
1825 lpfc_handle_latt_free_pmb:
1826         mempool_free(pmb, phba->mbox_mem_pool);
1827 lpfc_handle_latt_err_exit:
1828         /* Enable Link attention interrupts */
1829         spin_lock_irq(&phba->hbalock);
1830         psli->sli_flag |= LPFC_PROCESS_LA;
1831         control = readl(phba->HCregaddr);
1832         control |= HC_LAINT_ENA;
1833         writel(control, phba->HCregaddr);
1834         readl(phba->HCregaddr); /* flush */
1835
1836         /* Clear Link Attention in HA REG */
1837         writel(HA_LATT, phba->HAregaddr);
1838         readl(phba->HAregaddr); /* flush */
1839         spin_unlock_irq(&phba->hbalock);
1840         lpfc_linkdown(phba);
1841         phba->link_state = LPFC_HBA_ERROR;
1842
1843         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1844                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1845
1846         return;
1847 }
1848
1849 /**
1850  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1851  * @phba: pointer to lpfc hba data structure.
1852  * @vpd: pointer to the vital product data.
1853  * @len: length of the vital product data in bytes.
1854  *
1855  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1856  * an array of characters. In this routine, the ModelName, ProgramType, and
1857  * ModelDesc, etc. fields of the phba data structure will be populated.
1858  *
1859  * Return codes
1860  *   0 - pointer to the VPD passed in is NULL
1861  *   1 - success
1862  **/
1863 int
1864 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1865 {
1866         uint8_t lenlo, lenhi;
1867         int Length;
1868         int i, j;
1869         int finished = 0;
1870         int index = 0;
1871
1872         if (!vpd)
1873                 return 0;
1874
1875         /* Vital Product */
1876         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1877                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1878                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1879                         (uint32_t) vpd[3]);
1880         while (!finished && (index < (len - 4))) {
1881                 switch (vpd[index]) {
1882                 case 0x82:
1883                 case 0x91:
1884                         index += 1;
1885                         lenlo = vpd[index];
1886                         index += 1;
1887                         lenhi = vpd[index];
1888                         index += 1;
1889                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1890                         index += i;
1891                         break;
1892                 case 0x90:
1893                         index += 1;
1894                         lenlo = vpd[index];
1895                         index += 1;
1896                         lenhi = vpd[index];
1897                         index += 1;
1898                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1899                         if (Length > len - index)
1900                                 Length = len - index;
1901                         while (Length > 0) {
1902                         /* Look for Serial Number */
1903                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1904                                 index += 2;
1905                                 i = vpd[index];
1906                                 index += 1;
1907                                 j = 0;
1908                                 Length -= (3+i);
1909                                 while(i--) {
1910                                         phba->SerialNumber[j++] = vpd[index++];
1911                                         if (j == 31)
1912                                                 break;
1913                                 }
1914                                 phba->SerialNumber[j] = 0;
1915                                 continue;
1916                         }
1917                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1918                                 phba->vpd_flag |= VPD_MODEL_DESC;
1919                                 index += 2;
1920                                 i = vpd[index];
1921                                 index += 1;
1922                                 j = 0;
1923                                 Length -= (3+i);
1924                                 while(i--) {
1925                                         phba->ModelDesc[j++] = vpd[index++];
1926                                         if (j == 255)
1927                                                 break;
1928                                 }
1929                                 phba->ModelDesc[j] = 0;
1930                                 continue;
1931                         }
1932                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1933                                 phba->vpd_flag |= VPD_MODEL_NAME;
1934                                 index += 2;
1935                                 i = vpd[index];
1936                                 index += 1;
1937                                 j = 0;
1938                                 Length -= (3+i);
1939                                 while(i--) {
1940                                         phba->ModelName[j++] = vpd[index++];
1941                                         if (j == 79)
1942                                                 break;
1943                                 }
1944                                 phba->ModelName[j] = 0;
1945                                 continue;
1946                         }
1947                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1948                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1949                                 index += 2;
1950                                 i = vpd[index];
1951                                 index += 1;
1952                                 j = 0;
1953                                 Length -= (3+i);
1954                                 while(i--) {
1955                                         phba->ProgramType[j++] = vpd[index++];
1956                                         if (j == 255)
1957                                                 break;
1958                                 }
1959                                 phba->ProgramType[j] = 0;
1960                                 continue;
1961                         }
1962                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1963                                 phba->vpd_flag |= VPD_PORT;
1964                                 index += 2;
1965                                 i = vpd[index];
1966                                 index += 1;
1967                                 j = 0;
1968                                 Length -= (3+i);
1969                                 while(i--) {
1970                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1971                                             (phba->sli4_hba.pport_name_sta ==
1972                                              LPFC_SLI4_PPNAME_GET)) {
1973                                                 j++;
1974                                                 index++;
1975                                         } else
1976                                                 phba->Port[j++] = vpd[index++];
1977                                         if (j == 19)
1978                                                 break;
1979                                 }
1980                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1981                                     (phba->sli4_hba.pport_name_sta ==
1982                                      LPFC_SLI4_PPNAME_NON))
1983                                         phba->Port[j] = 0;
1984                                 continue;
1985                         }
1986                         else {
1987                                 index += 2;
1988                                 i = vpd[index];
1989                                 index += 1;
1990                                 index += i;
1991                                 Length -= (3 + i);
1992                         }
1993                 }
1994                 finished = 0;
1995                 break;
1996                 case 0x78:
1997                         finished = 1;
1998                         break;
1999                 default:
2000                         index ++;
2001                         break;
2002                 }
2003         }
2004
2005         return(1);
2006 }
2007
2008 /**
2009  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2010  * @phba: pointer to lpfc hba data structure.
2011  * @mdp: pointer to the data structure to hold the derived model name.
2012  * @descp: pointer to the data structure to hold the derived description.
2013  *
2014  * This routine retrieves HBA's description based on its registered PCI device
2015  * ID. The @descp passed into this function points to an array of 256 chars. It
2016  * shall be returned with the model name, maximum speed, and the host bus type.
2017  * The @mdp passed into this function points to an array of 80 chars. When the
2018  * function returns, the @mdp will be filled with the model name.
2019  **/
2020 static void
2021 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2022 {
2023         lpfc_vpd_t *vp;
2024         uint16_t dev_id = phba->pcidev->device;
2025         int max_speed;
2026         int GE = 0;
2027         int oneConnect = 0; /* default is not a oneConnect */
2028         struct {
2029                 char *name;
2030                 char *bus;
2031                 char *function;
2032         } m = {"<Unknown>", "", ""};
2033
2034         if (mdp && mdp[0] != '\0'
2035                 && descp && descp[0] != '\0')
2036                 return;
2037
2038         if (phba->lmt & LMT_16Gb)
2039                 max_speed = 16;
2040         else if (phba->lmt & LMT_10Gb)
2041                 max_speed = 10;
2042         else if (phba->lmt & LMT_8Gb)
2043                 max_speed = 8;
2044         else if (phba->lmt & LMT_4Gb)
2045                 max_speed = 4;
2046         else if (phba->lmt & LMT_2Gb)
2047                 max_speed = 2;
2048         else if (phba->lmt & LMT_1Gb)
2049                 max_speed = 1;
2050         else
2051                 max_speed = 0;
2052
2053         vp = &phba->vpd;
2054
2055         switch (dev_id) {
2056         case PCI_DEVICE_ID_FIREFLY:
2057                 m = (typeof(m)){"LP6000", "PCI",
2058                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2059                 break;
2060         case PCI_DEVICE_ID_SUPERFLY:
2061                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2062                         m = (typeof(m)){"LP7000", "PCI", ""};
2063                 else
2064                         m = (typeof(m)){"LP7000E", "PCI", ""};
2065                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2066                 break;
2067         case PCI_DEVICE_ID_DRAGONFLY:
2068                 m = (typeof(m)){"LP8000", "PCI",
2069                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2070                 break;
2071         case PCI_DEVICE_ID_CENTAUR:
2072                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2073                         m = (typeof(m)){"LP9002", "PCI", ""};
2074                 else
2075                         m = (typeof(m)){"LP9000", "PCI", ""};
2076                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2077                 break;
2078         case PCI_DEVICE_ID_RFLY:
2079                 m = (typeof(m)){"LP952", "PCI",
2080                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2081                 break;
2082         case PCI_DEVICE_ID_PEGASUS:
2083                 m = (typeof(m)){"LP9802", "PCI-X",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_THOR:
2087                 m = (typeof(m)){"LP10000", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_VIPER:
2091                 m = (typeof(m)){"LPX1000",  "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_PFLY:
2095                 m = (typeof(m)){"LP982", "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_TFLY:
2099                 m = (typeof(m)){"LP1050", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_HELIOS:
2103                 m = (typeof(m)){"LP11000", "PCI-X2",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS_SCSP:
2107                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_DCSP:
2111                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_NEPTUNE:
2115                 m = (typeof(m)){"LPe1000", "PCIe",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2119                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2123                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_BMID:
2127                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2128                 break;
2129         case PCI_DEVICE_ID_BSMB:
2130                 m = (typeof(m)){"LP111", "PCI-X2",
2131                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_ZEPHYR:
2134                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2135                 break;
2136         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2137                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2138                 break;
2139         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2140                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2141                 GE = 1;
2142                 break;
2143         case PCI_DEVICE_ID_ZMID:
2144                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2145                 break;
2146         case PCI_DEVICE_ID_ZSMB:
2147                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_LP101:
2150                 m = (typeof(m)){"LP101", "PCI-X",
2151                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP10000S:
2154                 m = (typeof(m)){"LP10000-S", "PCI",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP11000S:
2158                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LPE11000S:
2162                 m = (typeof(m)){"LPe11000-S", "PCIe",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_SAT:
2166                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2167                 break;
2168         case PCI_DEVICE_ID_SAT_MID:
2169                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2170                 break;
2171         case PCI_DEVICE_ID_SAT_SMB:
2172                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2173                 break;
2174         case PCI_DEVICE_ID_SAT_DCSP:
2175                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2176                 break;
2177         case PCI_DEVICE_ID_SAT_SCSP:
2178                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2179                 break;
2180         case PCI_DEVICE_ID_SAT_S:
2181                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2182                 break;
2183         case PCI_DEVICE_ID_HORNET:
2184                 m = (typeof(m)){"LP21000", "PCIe",
2185                                 "Obsolete, Unsupported FCoE Adapter"};
2186                 GE = 1;
2187                 break;
2188         case PCI_DEVICE_ID_PROTEUS_VF:
2189                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2190                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_PF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_S:
2197                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_TIGERSHARK:
2201                 oneConnect = 1;
2202                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2203                 break;
2204         case PCI_DEVICE_ID_TOMCAT:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_FALCON:
2209                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2210                                 "EmulexSecure Fibre"};
2211                 break;
2212         case PCI_DEVICE_ID_BALIUS:
2213                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2214                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_LANCER_FC:
2217                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2218                 break;
2219         case PCI_DEVICE_ID_LANCER_FC_VF:
2220                 m = (typeof(m)){"LPe16000", "PCIe",
2221                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FCOE:
2224                 oneConnect = 1;
2225                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe",
2230                                 "Obsolete, Unsupported FCoE"};
2231                 break;
2232         case PCI_DEVICE_ID_SKYHAWK:
2233         case PCI_DEVICE_ID_SKYHAWK_VF:
2234                 oneConnect = 1;
2235                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2236                 break;
2237         default:
2238                 m = (typeof(m)){"Unknown", "", ""};
2239                 break;
2240         }
2241
2242         if (mdp && mdp[0] == '\0')
2243                 snprintf(mdp, 79,"%s", m.name);
2244         /*
2245          * oneConnect hba requires special processing, they are all initiators
2246          * and we put the port number on the end
2247          */
2248         if (descp && descp[0] == '\0') {
2249                 if (oneConnect)
2250                         snprintf(descp, 255,
2251                                 "Emulex OneConnect %s, %s Initiator %s",
2252                                 m.name, m.function,
2253                                 phba->Port);
2254                 else if (max_speed == 0)
2255                         snprintf(descp, 255,
2256                                 "Emulex %s %s %s ",
2257                                 m.name, m.bus, m.function);
2258                 else
2259                         snprintf(descp, 255,
2260                                 "Emulex %s %d%s %s %s",
2261                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2262                                 m.bus, m.function);
2263         }
2264 }
2265
2266 /**
2267  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2268  * @phba: pointer to lpfc hba data structure.
2269  * @pring: pointer to a IOCB ring.
2270  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2271  *
2272  * This routine posts a given number of IOCBs with the associated DMA buffer
2273  * descriptors specified by the cnt argument to the given IOCB ring.
2274  *
2275  * Return codes
2276  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2277  **/
2278 int
2279 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2280 {
2281         IOCB_t *icmd;
2282         struct lpfc_iocbq *iocb;
2283         struct lpfc_dmabuf *mp1, *mp2;
2284
2285         cnt += pring->missbufcnt;
2286
2287         /* While there are buffers to post */
2288         while (cnt > 0) {
2289                 /* Allocate buffer for  command iocb */
2290                 iocb = lpfc_sli_get_iocbq(phba);
2291                 if (iocb == NULL) {
2292                         pring->missbufcnt = cnt;
2293                         return cnt;
2294                 }
2295                 icmd = &iocb->iocb;
2296
2297                 /* 2 buffers can be posted per command */
2298                 /* Allocate buffer to post */
2299                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2300                 if (mp1)
2301                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2302                 if (!mp1 || !mp1->virt) {
2303                         kfree(mp1);
2304                         lpfc_sli_release_iocbq(phba, iocb);
2305                         pring->missbufcnt = cnt;
2306                         return cnt;
2307                 }
2308
2309                 INIT_LIST_HEAD(&mp1->list);
2310                 /* Allocate buffer to post */
2311                 if (cnt > 1) {
2312                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2313                         if (mp2)
2314                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2315                                                             &mp2->phys);
2316                         if (!mp2 || !mp2->virt) {
2317                                 kfree(mp2);
2318                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2319                                 kfree(mp1);
2320                                 lpfc_sli_release_iocbq(phba, iocb);
2321                                 pring->missbufcnt = cnt;
2322                                 return cnt;
2323                         }
2324
2325                         INIT_LIST_HEAD(&mp2->list);
2326                 } else {
2327                         mp2 = NULL;
2328                 }
2329
2330                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2331                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2332                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2333                 icmd->ulpBdeCount = 1;
2334                 cnt--;
2335                 if (mp2) {
2336                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2337                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2338                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2339                         cnt--;
2340                         icmd->ulpBdeCount = 2;
2341                 }
2342
2343                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2344                 icmd->ulpLe = 1;
2345
2346                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2347                     IOCB_ERROR) {
2348                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2349                         kfree(mp1);
2350                         cnt++;
2351                         if (mp2) {
2352                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2353                                 kfree(mp2);
2354                                 cnt++;
2355                         }
2356                         lpfc_sli_release_iocbq(phba, iocb);
2357                         pring->missbufcnt = cnt;
2358                         return cnt;
2359                 }
2360                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2361                 if (mp2)
2362                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2363         }
2364         pring->missbufcnt = 0;
2365         return 0;
2366 }
2367
2368 /**
2369  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2370  * @phba: pointer to lpfc hba data structure.
2371  *
2372  * This routine posts initial receive IOCB buffers to the ELS ring. The
2373  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2374  * set to 64 IOCBs.
2375  *
2376  * Return codes
2377  *   0 - success (currently always success)
2378  **/
2379 static int
2380 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2381 {
2382         struct lpfc_sli *psli = &phba->sli;
2383
2384         /* Ring 0, ELS / CT buffers */
2385         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2386         /* Ring 2 - FCP no buffers needed */
2387
2388         return 0;
2389 }
2390
2391 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2392
2393 /**
2394  * lpfc_sha_init - Set up initial array of hash table entries
2395  * @HashResultPointer: pointer to an array as hash table.
2396  *
2397  * This routine sets up the initial values to the array of hash table entries
2398  * for the LC HBAs.
2399  **/
2400 static void
2401 lpfc_sha_init(uint32_t * HashResultPointer)
2402 {
2403         HashResultPointer[0] = 0x67452301;
2404         HashResultPointer[1] = 0xEFCDAB89;
2405         HashResultPointer[2] = 0x98BADCFE;
2406         HashResultPointer[3] = 0x10325476;
2407         HashResultPointer[4] = 0xC3D2E1F0;
2408 }
2409
2410 /**
2411  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2412  * @HashResultPointer: pointer to an initial/result hash table.
2413  * @HashWorkingPointer: pointer to an working hash table.
2414  *
2415  * This routine iterates an initial hash table pointed by @HashResultPointer
2416  * with the values from the working hash table pointeed by @HashWorkingPointer.
2417  * The results are putting back to the initial hash table, returned through
2418  * the @HashResultPointer as the result hash table.
2419  **/
2420 static void
2421 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2422 {
2423         int t;
2424         uint32_t TEMP;
2425         uint32_t A, B, C, D, E;
2426         t = 16;
2427         do {
2428                 HashWorkingPointer[t] =
2429                     S(1,
2430                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2431                                                                      8] ^
2432                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2433         } while (++t <= 79);
2434         t = 0;
2435         A = HashResultPointer[0];
2436         B = HashResultPointer[1];
2437         C = HashResultPointer[2];
2438         D = HashResultPointer[3];
2439         E = HashResultPointer[4];
2440
2441         do {
2442                 if (t < 20) {
2443                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2444                 } else if (t < 40) {
2445                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2446                 } else if (t < 60) {
2447                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2448                 } else {
2449                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2450                 }
2451                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2452                 E = D;
2453                 D = C;
2454                 C = S(30, B);
2455                 B = A;
2456                 A = TEMP;
2457         } while (++t <= 79);
2458
2459         HashResultPointer[0] += A;
2460         HashResultPointer[1] += B;
2461         HashResultPointer[2] += C;
2462         HashResultPointer[3] += D;
2463         HashResultPointer[4] += E;
2464
2465 }
2466
2467 /**
2468  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2469  * @RandomChallenge: pointer to the entry of host challenge random number array.
2470  * @HashWorking: pointer to the entry of the working hash array.
2471  *
2472  * This routine calculates the working hash array referred by @HashWorking
2473  * from the challenge random numbers associated with the host, referred by
2474  * @RandomChallenge. The result is put into the entry of the working hash
2475  * array and returned by reference through @HashWorking.
2476  **/
2477 static void
2478 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2479 {
2480         *HashWorking = (*RandomChallenge ^ *HashWorking);
2481 }
2482
2483 /**
2484  * lpfc_hba_init - Perform special handling for LC HBA initialization
2485  * @phba: pointer to lpfc hba data structure.
2486  * @hbainit: pointer to an array of unsigned 32-bit integers.
2487  *
2488  * This routine performs the special handling for LC HBA initialization.
2489  **/
2490 void
2491 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2492 {
2493         int t;
2494         uint32_t *HashWorking;
2495         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2496
2497         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2498         if (!HashWorking)
2499                 return;
2500
2501         HashWorking[0] = HashWorking[78] = *pwwnn++;
2502         HashWorking[1] = HashWorking[79] = *pwwnn;
2503
2504         for (t = 0; t < 7; t++)
2505                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2506
2507         lpfc_sha_init(hbainit);
2508         lpfc_sha_iterate(hbainit, HashWorking);
2509         kfree(HashWorking);
2510 }
2511
2512 /**
2513  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2514  * @vport: pointer to a virtual N_Port data structure.
2515  *
2516  * This routine performs the necessary cleanups before deleting the @vport.
2517  * It invokes the discovery state machine to perform necessary state
2518  * transitions and to release the ndlps associated with the @vport. Note,
2519  * the physical port is treated as @vport 0.
2520  **/
2521 void
2522 lpfc_cleanup(struct lpfc_vport *vport)
2523 {
2524         struct lpfc_hba   *phba = vport->phba;
2525         struct lpfc_nodelist *ndlp, *next_ndlp;
2526         int i = 0;
2527
2528         if (phba->link_state > LPFC_LINK_DOWN)
2529                 lpfc_port_link_failure(vport);
2530
2531         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2532                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2533                         ndlp = lpfc_enable_node(vport, ndlp,
2534                                                 NLP_STE_UNUSED_NODE);
2535                         if (!ndlp)
2536                                 continue;
2537                         spin_lock_irq(&phba->ndlp_lock);
2538                         NLP_SET_FREE_REQ(ndlp);
2539                         spin_unlock_irq(&phba->ndlp_lock);
2540                         /* Trigger the release of the ndlp memory */
2541                         lpfc_nlp_put(ndlp);
2542                         continue;
2543                 }
2544                 spin_lock_irq(&phba->ndlp_lock);
2545                 if (NLP_CHK_FREE_REQ(ndlp)) {
2546                         /* The ndlp should not be in memory free mode already */
2547                         spin_unlock_irq(&phba->ndlp_lock);
2548                         continue;
2549                 } else
2550                         /* Indicate request for freeing ndlp memory */
2551                         NLP_SET_FREE_REQ(ndlp);
2552                 spin_unlock_irq(&phba->ndlp_lock);
2553
2554                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2555                     ndlp->nlp_DID == Fabric_DID) {
2556                         /* Just free up ndlp with Fabric_DID for vports */
2557                         lpfc_nlp_put(ndlp);
2558                         continue;
2559                 }
2560
2561                 /* take care of nodes in unused state before the state
2562                  * machine taking action.
2563                  */
2564                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2565                         lpfc_nlp_put(ndlp);
2566                         continue;
2567                 }
2568
2569                 if (ndlp->nlp_type & NLP_FABRIC)
2570                         lpfc_disc_state_machine(vport, ndlp, NULL,
2571                                         NLP_EVT_DEVICE_RECOVERY);
2572
2573                 lpfc_disc_state_machine(vport, ndlp, NULL,
2574                                              NLP_EVT_DEVICE_RM);
2575         }
2576
2577         /* At this point, ALL ndlp's should be gone
2578          * because of the previous NLP_EVT_DEVICE_RM.
2579          * Lets wait for this to happen, if needed.
2580          */
2581         while (!list_empty(&vport->fc_nodes)) {
2582                 if (i++ > 3000) {
2583                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2584                                 "0233 Nodelist not empty\n");
2585                         list_for_each_entry_safe(ndlp, next_ndlp,
2586                                                 &vport->fc_nodes, nlp_listp) {
2587                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2588                                                 LOG_NODE,
2589                                                 "0282 did:x%x ndlp:x%p "
2590                                                 "usgmap:x%x refcnt:%d\n",
2591                                                 ndlp->nlp_DID, (void *)ndlp,
2592                                                 ndlp->nlp_usg_map,
2593                                                 atomic_read(
2594                                                         &ndlp->kref.refcount));
2595                         }
2596                         break;
2597                 }
2598
2599                 /* Wait for any activity on ndlps to settle */
2600                 msleep(10);
2601         }
2602         lpfc_cleanup_vports_rrqs(vport, NULL);
2603 }
2604
2605 /**
2606  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2607  * @vport: pointer to a virtual N_Port data structure.
2608  *
2609  * This routine stops all the timers associated with a @vport. This function
2610  * is invoked before disabling or deleting a @vport. Note that the physical
2611  * port is treated as @vport 0.
2612  **/
2613 void
2614 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2615 {
2616         del_timer_sync(&vport->els_tmofunc);
2617         del_timer_sync(&vport->fc_fdmitmo);
2618         del_timer_sync(&vport->delayed_disc_tmo);
2619         lpfc_can_disctmo(vport);
2620         return;
2621 }
2622
2623 /**
2624  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2625  * @phba: pointer to lpfc hba data structure.
2626  *
2627  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2628  * caller of this routine should already hold the host lock.
2629  **/
2630 void
2631 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2632 {
2633         /* Clear pending FCF rediscovery wait flag */
2634         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2635
2636         /* Now, try to stop the timer */
2637         del_timer(&phba->fcf.redisc_wait);
2638 }
2639
2640 /**
2641  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2642  * @phba: pointer to lpfc hba data structure.
2643  *
2644  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2645  * checks whether the FCF rediscovery wait timer is pending with the host
2646  * lock held before proceeding with disabling the timer and clearing the
2647  * wait timer pendig flag.
2648  **/
2649 void
2650 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2651 {
2652         spin_lock_irq(&phba->hbalock);
2653         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2654                 /* FCF rediscovery timer already fired or stopped */
2655                 spin_unlock_irq(&phba->hbalock);
2656                 return;
2657         }
2658         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2659         /* Clear failover in progress flags */
2660         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2661         spin_unlock_irq(&phba->hbalock);
2662 }
2663
2664 /**
2665  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2666  * @phba: pointer to lpfc hba data structure.
2667  *
2668  * This routine stops all the timers associated with a HBA. This function is
2669  * invoked before either putting a HBA offline or unloading the driver.
2670  **/
2671 void
2672 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2673 {
2674         lpfc_stop_vport_timers(phba->pport);
2675         del_timer_sync(&phba->sli.mbox_tmo);
2676         del_timer_sync(&phba->fabric_block_timer);
2677         del_timer_sync(&phba->eratt_poll);
2678         del_timer_sync(&phba->hb_tmofunc);
2679         if (phba->sli_rev == LPFC_SLI_REV4) {
2680                 del_timer_sync(&phba->rrq_tmr);
2681                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2682         }
2683         phba->hb_outstanding = 0;
2684
2685         switch (phba->pci_dev_grp) {
2686         case LPFC_PCI_DEV_LP:
2687                 /* Stop any LightPulse device specific driver timers */
2688                 del_timer_sync(&phba->fcp_poll_timer);
2689                 break;
2690         case LPFC_PCI_DEV_OC:
2691                 /* Stop any OneConnect device sepcific driver timers */
2692                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2693                 break;
2694         default:
2695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2696                                 "0297 Invalid device group (x%x)\n",
2697                                 phba->pci_dev_grp);
2698                 break;
2699         }
2700         return;
2701 }
2702
2703 /**
2704  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2705  * @phba: pointer to lpfc hba data structure.
2706  *
2707  * This routine marks a HBA's management interface as blocked. Once the HBA's
2708  * management interface is marked as blocked, all the user space access to
2709  * the HBA, whether they are from sysfs interface or libdfc interface will
2710  * all be blocked. The HBA is set to block the management interface when the
2711  * driver prepares the HBA interface for online or offline.
2712  **/
2713 static void
2714 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2715 {
2716         unsigned long iflag;
2717         uint8_t actcmd = MBX_HEARTBEAT;
2718         unsigned long timeout;
2719
2720         spin_lock_irqsave(&phba->hbalock, iflag);
2721         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2722         spin_unlock_irqrestore(&phba->hbalock, iflag);
2723         if (mbx_action == LPFC_MBX_NO_WAIT)
2724                 return;
2725         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2726         spin_lock_irqsave(&phba->hbalock, iflag);
2727         if (phba->sli.mbox_active) {
2728                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2729                 /* Determine how long we might wait for the active mailbox
2730                  * command to be gracefully completed by firmware.
2731                  */
2732                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2733                                 phba->sli.mbox_active) * 1000) + jiffies;
2734         }
2735         spin_unlock_irqrestore(&phba->hbalock, iflag);
2736
2737         /* Wait for the outstnading mailbox command to complete */
2738         while (phba->sli.mbox_active) {
2739                 /* Check active mailbox complete status every 2ms */
2740                 msleep(2);
2741                 if (time_after(jiffies, timeout)) {
2742                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2743                                 "2813 Mgmt IO is Blocked %x "
2744                                 "- mbox cmd %x still active\n",
2745                                 phba->sli.sli_flag, actcmd);
2746                         break;
2747                 }
2748         }
2749 }
2750
2751 /**
2752  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2753  * @phba: pointer to lpfc hba data structure.
2754  *
2755  * Allocate RPIs for all active remote nodes. This is needed whenever
2756  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2757  * is to fixup the temporary rpi assignments.
2758  **/
2759 void
2760 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2761 {
2762         struct lpfc_nodelist  *ndlp, *next_ndlp;
2763         struct lpfc_vport **vports;
2764         int i;
2765
2766         if (phba->sli_rev != LPFC_SLI_REV4)
2767                 return;
2768
2769         vports = lpfc_create_vport_work_array(phba);
2770         if (vports != NULL) {
2771                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2772                         if (vports[i]->load_flag & FC_UNLOADING)
2773                                 continue;
2774
2775                         list_for_each_entry_safe(ndlp, next_ndlp,
2776                                                  &vports[i]->fc_nodes,
2777                                                  nlp_listp) {
2778                                 if (NLP_CHK_NODE_ACT(ndlp))
2779                                         ndlp->nlp_rpi =
2780                                                 lpfc_sli4_alloc_rpi(phba);
2781                         }
2782                 }
2783         }
2784         lpfc_destroy_vport_work_array(phba, vports);
2785 }
2786
2787 /**
2788  * lpfc_online - Initialize and bring a HBA online
2789  * @phba: pointer to lpfc hba data structure.
2790  *
2791  * This routine initializes the HBA and brings a HBA online. During this
2792  * process, the management interface is blocked to prevent user space access
2793  * to the HBA interfering with the driver initialization.
2794  *
2795  * Return codes
2796  *   0 - successful
2797  *   1 - failed
2798  **/
2799 int
2800 lpfc_online(struct lpfc_hba *phba)
2801 {
2802         struct lpfc_vport *vport;
2803         struct lpfc_vport **vports;
2804         int i;
2805         bool vpis_cleared = false;
2806
2807         if (!phba)
2808                 return 0;
2809         vport = phba->pport;
2810
2811         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2812                 return 0;
2813
2814         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2815                         "0458 Bring Adapter online\n");
2816
2817         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2818
2819         if (!lpfc_sli_queue_setup(phba)) {
2820                 lpfc_unblock_mgmt_io(phba);
2821                 return 1;
2822         }
2823
2824         if (phba->sli_rev == LPFC_SLI_REV4) {
2825                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2826                         lpfc_unblock_mgmt_io(phba);
2827                         return 1;
2828                 }
2829                 spin_lock_irq(&phba->hbalock);
2830                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2831                         vpis_cleared = true;
2832                 spin_unlock_irq(&phba->hbalock);
2833         } else {
2834                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2835                         lpfc_unblock_mgmt_io(phba);
2836                         return 1;
2837                 }
2838         }
2839
2840         vports = lpfc_create_vport_work_array(phba);
2841         if (vports != NULL)
2842                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2843                         struct Scsi_Host *shost;
2844                         shost = lpfc_shost_from_vport(vports[i]);
2845                         spin_lock_irq(shost->host_lock);
2846                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2847                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2848                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2849                         if (phba->sli_rev == LPFC_SLI_REV4) {
2850                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2851                                 if ((vpis_cleared) &&
2852                                     (vports[i]->port_type !=
2853                                         LPFC_PHYSICAL_PORT))
2854                                         vports[i]->vpi = 0;
2855                         }
2856                         spin_unlock_irq(shost->host_lock);
2857                 }
2858                 lpfc_destroy_vport_work_array(phba, vports);
2859
2860         lpfc_unblock_mgmt_io(phba);
2861         return 0;
2862 }
2863
2864 /**
2865  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2866  * @phba: pointer to lpfc hba data structure.
2867  *
2868  * This routine marks a HBA's management interface as not blocked. Once the
2869  * HBA's management interface is marked as not blocked, all the user space
2870  * access to the HBA, whether they are from sysfs interface or libdfc
2871  * interface will be allowed. The HBA is set to block the management interface
2872  * when the driver prepares the HBA interface for online or offline and then
2873  * set to unblock the management interface afterwards.
2874  **/
2875 void
2876 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2877 {
2878         unsigned long iflag;
2879
2880         spin_lock_irqsave(&phba->hbalock, iflag);
2881         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2882         spin_unlock_irqrestore(&phba->hbalock, iflag);
2883 }
2884
2885 /**
2886  * lpfc_offline_prep - Prepare a HBA to be brought offline
2887  * @phba: pointer to lpfc hba data structure.
2888  *
2889  * This routine is invoked to prepare a HBA to be brought offline. It performs
2890  * unregistration login to all the nodes on all vports and flushes the mailbox
2891  * queue to make it ready to be brought offline.
2892  **/
2893 void
2894 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2895 {
2896         struct lpfc_vport *vport = phba->pport;
2897         struct lpfc_nodelist  *ndlp, *next_ndlp;
2898         struct lpfc_vport **vports;
2899         struct Scsi_Host *shost;
2900         int i;
2901
2902         if (vport->fc_flag & FC_OFFLINE_MODE)
2903                 return;
2904
2905         lpfc_block_mgmt_io(phba, mbx_action);
2906
2907         lpfc_linkdown(phba);
2908
2909         /* Issue an unreg_login to all nodes on all vports */
2910         vports = lpfc_create_vport_work_array(phba);
2911         if (vports != NULL) {
2912                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2913                         if (vports[i]->load_flag & FC_UNLOADING)
2914                                 continue;
2915                         shost = lpfc_shost_from_vport(vports[i]);
2916                         spin_lock_irq(shost->host_lock);
2917                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2918                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2919                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2920                         spin_unlock_irq(shost->host_lock);
2921
2922                         shost = lpfc_shost_from_vport(vports[i]);
2923                         list_for_each_entry_safe(ndlp, next_ndlp,
2924                                                  &vports[i]->fc_nodes,
2925                                                  nlp_listp) {
2926                                 if (!NLP_CHK_NODE_ACT(ndlp))
2927                                         continue;
2928                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2929                                         continue;
2930                                 if (ndlp->nlp_type & NLP_FABRIC) {
2931                                         lpfc_disc_state_machine(vports[i], ndlp,
2932                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2933                                         lpfc_disc_state_machine(vports[i], ndlp,
2934                                                 NULL, NLP_EVT_DEVICE_RM);
2935                                 }
2936                                 spin_lock_irq(shost->host_lock);
2937                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2938                                 spin_unlock_irq(shost->host_lock);
2939                                 /*
2940                                  * Whenever an SLI4 port goes offline, free the
2941                                  * RPI. Get a new RPI when the adapter port
2942                                  * comes back online.
2943                                  */
2944                                 if (phba->sli_rev == LPFC_SLI_REV4)
2945                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2946                                 lpfc_unreg_rpi(vports[i], ndlp);
2947                         }
2948                 }
2949         }
2950         lpfc_destroy_vport_work_array(phba, vports);
2951
2952         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2953 }
2954
2955 /**
2956  * lpfc_offline - Bring a HBA offline
2957  * @phba: pointer to lpfc hba data structure.
2958  *
2959  * This routine actually brings a HBA offline. It stops all the timers
2960  * associated with the HBA, brings down the SLI layer, and eventually
2961  * marks the HBA as in offline state for the upper layer protocol.
2962  **/
2963 void
2964 lpfc_offline(struct lpfc_hba *phba)
2965 {
2966         struct Scsi_Host  *shost;
2967         struct lpfc_vport **vports;
2968         int i;
2969
2970         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2971                 return;
2972
2973         /* stop port and all timers associated with this hba */
2974         lpfc_stop_port(phba);
2975         vports = lpfc_create_vport_work_array(phba);
2976         if (vports != NULL)
2977                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2978                         lpfc_stop_vport_timers(vports[i]);
2979         lpfc_destroy_vport_work_array(phba, vports);
2980         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2981                         "0460 Bring Adapter offline\n");
2982         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2983            now.  */
2984         lpfc_sli_hba_down(phba);
2985         spin_lock_irq(&phba->hbalock);
2986         phba->work_ha = 0;
2987         spin_unlock_irq(&phba->hbalock);
2988         vports = lpfc_create_vport_work_array(phba);
2989         if (vports != NULL)
2990                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2991                         shost = lpfc_shost_from_vport(vports[i]);
2992                         spin_lock_irq(shost->host_lock);
2993                         vports[i]->work_port_events = 0;
2994                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2995                         spin_unlock_irq(shost->host_lock);
2996                 }
2997         lpfc_destroy_vport_work_array(phba, vports);
2998 }
2999
3000 /**
3001  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3002  * @phba: pointer to lpfc hba data structure.
3003  *
3004  * This routine is to free all the SCSI buffers and IOCBs from the driver
3005  * list back to kernel. It is called from lpfc_pci_remove_one to free
3006  * the internal resources before the device is removed from the system.
3007  **/
3008 static void
3009 lpfc_scsi_free(struct lpfc_hba *phba)
3010 {
3011         struct lpfc_scsi_buf *sb, *sb_next;
3012         struct lpfc_iocbq *io, *io_next;
3013
3014         spin_lock_irq(&phba->hbalock);
3015
3016         /* Release all the lpfc_scsi_bufs maintained by this host. */
3017
3018         spin_lock(&phba->scsi_buf_list_put_lock);
3019         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3020                                  list) {
3021                 list_del(&sb->list);
3022                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3023                               sb->dma_handle);
3024                 kfree(sb);
3025                 phba->total_scsi_bufs--;
3026         }
3027         spin_unlock(&phba->scsi_buf_list_put_lock);
3028
3029         spin_lock(&phba->scsi_buf_list_get_lock);
3030         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3031                                  list) {
3032                 list_del(&sb->list);
3033                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3034                               sb->dma_handle);
3035                 kfree(sb);
3036                 phba->total_scsi_bufs--;
3037         }
3038         spin_unlock(&phba->scsi_buf_list_get_lock);
3039
3040         /* Release all the lpfc_iocbq entries maintained by this host. */
3041         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3042                 list_del(&io->list);
3043                 kfree(io);
3044                 phba->total_iocbq_bufs--;
3045         }
3046
3047         spin_unlock_irq(&phba->hbalock);
3048 }
3049
3050 /**
3051  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3052  * @phba: pointer to lpfc hba data structure.
3053  *
3054  * This routine first calculates the sizes of the current els and allocated
3055  * scsi sgl lists, and then goes through all sgls to updates the physical
3056  * XRIs assigned due to port function reset. During port initialization, the
3057  * current els and allocated scsi sgl lists are 0s.
3058  *
3059  * Return codes
3060  *   0 - successful (for now, it always returns 0)
3061  **/
3062 int
3063 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3064 {
3065         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3066         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3067         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3068         LIST_HEAD(els_sgl_list);
3069         LIST_HEAD(scsi_sgl_list);
3070         int rc;
3071         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3072
3073         /*
3074          * update on pci function's els xri-sgl list
3075          */
3076         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3077         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3078                 /* els xri-sgl expanded */
3079                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3080                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3081                                 "3157 ELS xri-sgl count increased from "
3082                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3083                                 els_xri_cnt);
3084                 /* allocate the additional els sgls */
3085                 for (i = 0; i < xri_cnt; i++) {
3086                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3087                                              GFP_KERNEL);
3088                         if (sglq_entry == NULL) {
3089                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3090                                                 "2562 Failure to allocate an "
3091                                                 "ELS sgl entry:%d\n", i);
3092                                 rc = -ENOMEM;
3093                                 goto out_free_mem;
3094                         }
3095                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3096                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3097                                                            &sglq_entry->phys);
3098                         if (sglq_entry->virt == NULL) {
3099                                 kfree(sglq_entry);
3100                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3101                                                 "2563 Failure to allocate an "
3102                                                 "ELS mbuf:%d\n", i);
3103                                 rc = -ENOMEM;
3104                                 goto out_free_mem;
3105                         }
3106                         sglq_entry->sgl = sglq_entry->virt;
3107                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3108                         sglq_entry->state = SGL_FREED;
3109                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3110                 }
3111                 spin_lock_irq(&phba->hbalock);
3112                 spin_lock(&pring->ring_lock);
3113                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3114                 spin_unlock(&pring->ring_lock);
3115                 spin_unlock_irq(&phba->hbalock);
3116         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3117                 /* els xri-sgl shrinked */
3118                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3119                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3120                                 "3158 ELS xri-sgl count decreased from "
3121                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3122                                 els_xri_cnt);
3123                 spin_lock_irq(&phba->hbalock);
3124                 spin_lock(&pring->ring_lock);
3125                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3126                 spin_unlock(&pring->ring_lock);
3127                 spin_unlock_irq(&phba->hbalock);
3128                 /* release extra els sgls from list */
3129                 for (i = 0; i < xri_cnt; i++) {
3130                         list_remove_head(&els_sgl_list,
3131                                          sglq_entry, struct lpfc_sglq, list);
3132                         if (sglq_entry) {
3133                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3134                                                sglq_entry->phys);
3135                                 kfree(sglq_entry);
3136                         }
3137                 }
3138                 spin_lock_irq(&phba->hbalock);
3139                 spin_lock(&pring->ring_lock);
3140                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3141                 spin_unlock(&pring->ring_lock);
3142                 spin_unlock_irq(&phba->hbalock);
3143         } else
3144                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3145                                 "3163 ELS xri-sgl count unchanged: %d\n",
3146                                 els_xri_cnt);
3147         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3148
3149         /* update xris to els sgls on the list */
3150         sglq_entry = NULL;
3151         sglq_entry_next = NULL;
3152         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3153                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3154                 lxri = lpfc_sli4_next_xritag(phba);
3155                 if (lxri == NO_XRI) {
3156                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3157                                         "2400 Failed to allocate xri for "
3158                                         "ELS sgl\n");
3159                         rc = -ENOMEM;
3160                         goto out_free_mem;
3161                 }
3162                 sglq_entry->sli4_lxritag = lxri;
3163                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3164         }
3165
3166         /*
3167          * update on pci function's allocated scsi xri-sgl list
3168          */
3169         phba->total_scsi_bufs = 0;
3170
3171         /* maximum number of xris available for scsi buffers */
3172         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3173                                       els_xri_cnt;
3174
3175         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3176                         "2401 Current allocated SCSI xri-sgl count:%d, "
3177                         "maximum  SCSI xri count:%d\n",
3178                         phba->sli4_hba.scsi_xri_cnt,
3179                         phba->sli4_hba.scsi_xri_max);
3180
3181         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3182         spin_lock(&phba->scsi_buf_list_put_lock);
3183         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3184         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3185         spin_unlock(&phba->scsi_buf_list_put_lock);
3186         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3187
3188         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3189                 /* max scsi xri shrinked below the allocated scsi buffers */
3190                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3191                                         phba->sli4_hba.scsi_xri_max;
3192                 /* release the extra allocated scsi buffers */
3193                 for (i = 0; i < scsi_xri_cnt; i++) {
3194                         list_remove_head(&scsi_sgl_list, psb,
3195                                          struct lpfc_scsi_buf, list);
3196                         if (psb) {
3197                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3198                                               psb->data, psb->dma_handle);
3199                                 kfree(psb);
3200                         }
3201                 }
3202                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3203                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3204                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3205         }
3206
3207         /* update xris associated to remaining allocated scsi buffers */
3208         psb = NULL;
3209         psb_next = NULL;
3210         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3211                 lxri = lpfc_sli4_next_xritag(phba);
3212                 if (lxri == NO_XRI) {
3213                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3214                                         "2560 Failed to allocate xri for "
3215                                         "scsi buffer\n");
3216                         rc = -ENOMEM;
3217                         goto out_free_mem;
3218                 }
3219                 psb->cur_iocbq.sli4_lxritag = lxri;
3220                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3221         }
3222         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3223         spin_lock(&phba->scsi_buf_list_put_lock);
3224         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3225         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3226         spin_unlock(&phba->scsi_buf_list_put_lock);
3227         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3228
3229         return 0;
3230
3231 out_free_mem:
3232         lpfc_free_els_sgl_list(phba);
3233         lpfc_scsi_free(phba);
3234         return rc;
3235 }
3236
3237 /**
3238  * lpfc_create_port - Create an FC port
3239  * @phba: pointer to lpfc hba data structure.
3240  * @instance: a unique integer ID to this FC port.
3241  * @dev: pointer to the device data structure.
3242  *
3243  * This routine creates a FC port for the upper layer protocol. The FC port
3244  * can be created on top of either a physical port or a virtual port provided
3245  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3246  * and associates the FC port created before adding the shost into the SCSI
3247  * layer.
3248  *
3249  * Return codes
3250  *   @vport - pointer to the virtual N_Port data structure.
3251  *   NULL - port create failed.
3252  **/
3253 struct lpfc_vport *
3254 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3255 {
3256         struct lpfc_vport *vport;
3257         struct Scsi_Host  *shost;
3258         int error = 0;
3259
3260         if (dev != &phba->pcidev->dev)
3261                 shost = scsi_host_alloc(&lpfc_vport_template,
3262                                         sizeof(struct lpfc_vport));
3263         else
3264                 shost = scsi_host_alloc(&lpfc_template,
3265                                         sizeof(struct lpfc_vport));
3266         if (!shost)
3267                 goto out;
3268
3269         vport = (struct lpfc_vport *) shost->hostdata;
3270         vport->phba = phba;
3271         vport->load_flag |= FC_LOADING;
3272         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3273         vport->fc_rscn_flush = 0;
3274
3275         lpfc_get_vport_cfgparam(vport);
3276         shost->unique_id = instance;
3277         shost->max_id = LPFC_MAX_TARGET;
3278         shost->max_lun = vport->cfg_max_luns;
3279         shost->this_id = -1;
3280         shost->max_cmd_len = 16;
3281         if (phba->sli_rev == LPFC_SLI_REV4) {
3282                 shost->dma_boundary =
3283                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3284                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3285         }
3286
3287         /*
3288          * Set initial can_queue value since 0 is no longer supported and
3289          * scsi_add_host will fail. This will be adjusted later based on the
3290          * max xri value determined in hba setup.
3291          */
3292         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3293         if (dev != &phba->pcidev->dev) {
3294                 shost->transportt = lpfc_vport_transport_template;
3295                 vport->port_type = LPFC_NPIV_PORT;
3296         } else {
3297                 shost->transportt = lpfc_transport_template;
3298                 vport->port_type = LPFC_PHYSICAL_PORT;
3299         }
3300
3301         /* Initialize all internally managed lists. */
3302         INIT_LIST_HEAD(&vport->fc_nodes);
3303         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3304         spin_lock_init(&vport->work_port_lock);
3305
3306         init_timer(&vport->fc_disctmo);
3307         vport->fc_disctmo.function = lpfc_disc_timeout;
3308         vport->fc_disctmo.data = (unsigned long)vport;
3309
3310         init_timer(&vport->fc_fdmitmo);
3311         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3312         vport->fc_fdmitmo.data = (unsigned long)vport;
3313
3314         init_timer(&vport->els_tmofunc);
3315         vport->els_tmofunc.function = lpfc_els_timeout;
3316         vport->els_tmofunc.data = (unsigned long)vport;
3317
3318         init_timer(&vport->delayed_disc_tmo);
3319         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3320         vport->delayed_disc_tmo.data = (unsigned long)vport;
3321
3322         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3323         if (error)
3324                 goto out_put_shost;
3325
3326         spin_lock_irq(&phba->hbalock);
3327         list_add_tail(&vport->listentry, &phba->port_list);
3328         spin_unlock_irq(&phba->hbalock);
3329         return vport;
3330
3331 out_put_shost:
3332         scsi_host_put(shost);
3333 out:
3334         return NULL;
3335 }
3336
3337 /**
3338  * destroy_port -  destroy an FC port
3339  * @vport: pointer to an lpfc virtual N_Port data structure.
3340  *
3341  * This routine destroys a FC port from the upper layer protocol. All the
3342  * resources associated with the port are released.
3343  **/
3344 void
3345 destroy_port(struct lpfc_vport *vport)
3346 {
3347         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3348         struct lpfc_hba  *phba = vport->phba;
3349
3350         lpfc_debugfs_terminate(vport);
3351         fc_remove_host(shost);
3352         scsi_remove_host(shost);
3353
3354         spin_lock_irq(&phba->hbalock);
3355         list_del_init(&vport->listentry);
3356         spin_unlock_irq(&phba->hbalock);
3357
3358         lpfc_cleanup(vport);
3359         return;
3360 }
3361
3362 /**
3363  * lpfc_get_instance - Get a unique integer ID
3364  *
3365  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3366  * uses the kernel idr facility to perform the task.
3367  *
3368  * Return codes:
3369  *   instance - a unique integer ID allocated as the new instance.
3370  *   -1 - lpfc get instance failed.
3371  **/
3372 int
3373 lpfc_get_instance(void)
3374 {
3375         int ret;
3376
3377         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3378         return ret < 0 ? -1 : ret;
3379 }
3380
3381 /**
3382  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3383  * @shost: pointer to SCSI host data structure.
3384  * @time: elapsed time of the scan in jiffies.
3385  *
3386  * This routine is called by the SCSI layer with a SCSI host to determine
3387  * whether the scan host is finished.
3388  *
3389  * Note: there is no scan_start function as adapter initialization will have
3390  * asynchronously kicked off the link initialization.
3391  *
3392  * Return codes
3393  *   0 - SCSI host scan is not over yet.
3394  *   1 - SCSI host scan is over.
3395  **/
3396 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3397 {
3398         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3399         struct lpfc_hba   *phba = vport->phba;
3400         int stat = 0;
3401
3402         spin_lock_irq(shost->host_lock);
3403
3404         if (vport->load_flag & FC_UNLOADING) {
3405                 stat = 1;
3406                 goto finished;
3407         }
3408         if (time >= msecs_to_jiffies(30 * 1000)) {
3409                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3410                                 "0461 Scanning longer than 30 "
3411                                 "seconds.  Continuing initialization\n");
3412                 stat = 1;
3413                 goto finished;
3414         }
3415         if (time >= msecs_to_jiffies(15 * 1000) &&
3416             phba->link_state <= LPFC_LINK_DOWN) {
3417                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3418                                 "0465 Link down longer than 15 "
3419                                 "seconds.  Continuing initialization\n");
3420                 stat = 1;
3421                 goto finished;
3422         }
3423
3424         if (vport->port_state != LPFC_VPORT_READY)
3425                 goto finished;
3426         if (vport->num_disc_nodes || vport->fc_prli_sent)
3427                 goto finished;
3428         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3429                 goto finished;
3430         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3431                 goto finished;
3432
3433         stat = 1;
3434
3435 finished:
3436         spin_unlock_irq(shost->host_lock);
3437         return stat;
3438 }
3439
3440 /**
3441  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3442  * @shost: pointer to SCSI host data structure.
3443  *
3444  * This routine initializes a given SCSI host attributes on a FC port. The
3445  * SCSI host can be either on top of a physical port or a virtual port.
3446  **/
3447 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3448 {
3449         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3450         struct lpfc_hba   *phba = vport->phba;
3451         /*
3452          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3453          */
3454
3455         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3456         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3457         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3458
3459         memset(fc_host_supported_fc4s(shost), 0,
3460                sizeof(fc_host_supported_fc4s(shost)));
3461         fc_host_supported_fc4s(shost)[2] = 1;
3462         fc_host_supported_fc4s(shost)[7] = 1;
3463
3464         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3465                                  sizeof fc_host_symbolic_name(shost));
3466
3467         fc_host_supported_speeds(shost) = 0;
3468         if (phba->lmt & LMT_16Gb)
3469                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3470         if (phba->lmt & LMT_10Gb)
3471                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3472         if (phba->lmt & LMT_8Gb)
3473                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3474         if (phba->lmt & LMT_4Gb)
3475                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3476         if (phba->lmt & LMT_2Gb)
3477                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3478         if (phba->lmt & LMT_1Gb)
3479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3480
3481         fc_host_maxframe_size(shost) =
3482                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3483                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3484
3485         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3486
3487         /* This value is also unchanging */
3488         memset(fc_host_active_fc4s(shost), 0,
3489                sizeof(fc_host_active_fc4s(shost)));
3490         fc_host_active_fc4s(shost)[2] = 1;
3491         fc_host_active_fc4s(shost)[7] = 1;
3492
3493         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3494         spin_lock_irq(shost->host_lock);
3495         vport->load_flag &= ~FC_LOADING;
3496         spin_unlock_irq(shost->host_lock);
3497 }
3498
3499 /**
3500  * lpfc_stop_port_s3 - Stop SLI3 device port
3501  * @phba: pointer to lpfc hba data structure.
3502  *
3503  * This routine is invoked to stop an SLI3 device port, it stops the device
3504  * from generating interrupts and stops the device driver's timers for the
3505  * device.
3506  **/
3507 static void
3508 lpfc_stop_port_s3(struct lpfc_hba *phba)
3509 {
3510         /* Clear all interrupt enable conditions */
3511         writel(0, phba->HCregaddr);
3512         readl(phba->HCregaddr); /* flush */
3513         /* Clear all pending interrupts */
3514         writel(0xffffffff, phba->HAregaddr);
3515         readl(phba->HAregaddr); /* flush */
3516
3517         /* Reset some HBA SLI setup states */
3518         lpfc_stop_hba_timers(phba);
3519         phba->pport->work_port_events = 0;
3520 }
3521
3522 /**
3523  * lpfc_stop_port_s4 - Stop SLI4 device port
3524  * @phba: pointer to lpfc hba data structure.
3525  *
3526  * This routine is invoked to stop an SLI4 device port, it stops the device
3527  * from generating interrupts and stops the device driver's timers for the
3528  * device.
3529  **/
3530 static void
3531 lpfc_stop_port_s4(struct lpfc_hba *phba)
3532 {
3533         /* Reset some HBA SLI4 setup states */
3534         lpfc_stop_hba_timers(phba);
3535         phba->pport->work_port_events = 0;
3536         phba->sli4_hba.intr_enable = 0;
3537 }
3538
3539 /**
3540  * lpfc_stop_port - Wrapper function for stopping hba port
3541  * @phba: Pointer to HBA context object.
3542  *
3543  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3544  * the API jump table function pointer from the lpfc_hba struct.
3545  **/
3546 void
3547 lpfc_stop_port(struct lpfc_hba *phba)
3548 {
3549         phba->lpfc_stop_port(phba);
3550 }
3551
3552 /**
3553  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3554  * @phba: Pointer to hba for which this call is being executed.
3555  *
3556  * This routine starts the timer waiting for the FCF rediscovery to complete.
3557  **/
3558 void
3559 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3560 {
3561         unsigned long fcf_redisc_wait_tmo =
3562                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3563         /* Start fcf rediscovery wait period timer */
3564         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3565         spin_lock_irq(&phba->hbalock);
3566         /* Allow action to new fcf asynchronous event */
3567         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3568         /* Mark the FCF rediscovery pending state */
3569         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3570         spin_unlock_irq(&phba->hbalock);
3571 }
3572
3573 /**
3574  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3575  * @ptr: Map to lpfc_hba data structure pointer.
3576  *
3577  * This routine is invoked when waiting for FCF table rediscover has been
3578  * timed out. If new FCF record(s) has (have) been discovered during the
3579  * wait period, a new FCF event shall be added to the FCOE async event
3580  * list, and then worker thread shall be waked up for processing from the
3581  * worker thread context.
3582  **/
3583 static void
3584 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3585 {
3586         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3587
3588         /* Don't send FCF rediscovery event if timer cancelled */
3589         spin_lock_irq(&phba->hbalock);
3590         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3591                 spin_unlock_irq(&phba->hbalock);
3592                 return;
3593         }
3594         /* Clear FCF rediscovery timer pending flag */
3595         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3596         /* FCF rediscovery event to worker thread */
3597         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3598         spin_unlock_irq(&phba->hbalock);
3599         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3600                         "2776 FCF rediscover quiescent timer expired\n");
3601         /* wake up worker thread */
3602         lpfc_worker_wake_up(phba);
3603 }
3604
3605 /**
3606  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3607  * @phba: pointer to lpfc hba data structure.
3608  * @acqe_link: pointer to the async link completion queue entry.
3609  *
3610  * This routine is to parse the SLI4 link-attention link fault code and
3611  * translate it into the base driver's read link attention mailbox command
3612  * status.
3613  *
3614  * Return: Link-attention status in terms of base driver's coding.
3615  **/
3616 static uint16_t
3617 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3618                            struct lpfc_acqe_link *acqe_link)
3619 {
3620         uint16_t latt_fault;
3621
3622         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3623         case LPFC_ASYNC_LINK_FAULT_NONE:
3624         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3625         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3626                 latt_fault = 0;
3627                 break;
3628         default:
3629                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3630                                 "0398 Invalid link fault code: x%x\n",
3631                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3632                 latt_fault = MBXERR_ERROR;
3633                 break;
3634         }
3635         return latt_fault;
3636 }
3637
3638 /**
3639  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3640  * @phba: pointer to lpfc hba data structure.
3641  * @acqe_link: pointer to the async link completion queue entry.
3642  *
3643  * This routine is to parse the SLI4 link attention type and translate it
3644  * into the base driver's link attention type coding.
3645  *
3646  * Return: Link attention type in terms of base driver's coding.
3647  **/
3648 static uint8_t
3649 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3650                           struct lpfc_acqe_link *acqe_link)
3651 {
3652         uint8_t att_type;
3653
3654         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3655         case LPFC_ASYNC_LINK_STATUS_DOWN:
3656         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3657                 att_type = LPFC_ATT_LINK_DOWN;
3658                 break;
3659         case LPFC_ASYNC_LINK_STATUS_UP:
3660                 /* Ignore physical link up events - wait for logical link up */
3661                 att_type = LPFC_ATT_RESERVED;
3662                 break;
3663         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3664                 att_type = LPFC_ATT_LINK_UP;
3665                 break;
3666         default:
3667                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3668                                 "0399 Invalid link attention type: x%x\n",
3669                                 bf_get(lpfc_acqe_link_status, acqe_link));
3670                 att_type = LPFC_ATT_RESERVED;
3671                 break;
3672         }
3673         return att_type;
3674 }
3675
3676 /**
3677  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3678  * @phba: pointer to lpfc hba data structure.
3679  * @acqe_link: pointer to the async link completion queue entry.
3680  *
3681  * This routine is to parse the SLI4 link-attention link speed and translate
3682  * it into the base driver's link-attention link speed coding.
3683  *
3684  * Return: Link-attention link speed in terms of base driver's coding.
3685  **/
3686 static uint8_t
3687 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3688                                 struct lpfc_acqe_link *acqe_link)
3689 {
3690         uint8_t link_speed;
3691
3692         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3693         case LPFC_ASYNC_LINK_SPEED_ZERO:
3694         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3695         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3696                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3697                 break;
3698         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3699                 link_speed = LPFC_LINK_SPEED_1GHZ;
3700                 break;
3701         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3702                 link_speed = LPFC_LINK_SPEED_10GHZ;
3703                 break;
3704         default:
3705                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3706                                 "0483 Invalid link-attention link speed: x%x\n",
3707                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3708                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3709                 break;
3710         }
3711         return link_speed;
3712 }
3713
3714 /**
3715  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3716  * @phba: pointer to lpfc hba data structure.
3717  *
3718  * This routine is to get an SLI3 FC port's link speed in Mbps.
3719  *
3720  * Return: link speed in terms of Mbps.
3721  **/
3722 uint32_t
3723 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3724 {
3725         uint32_t link_speed;
3726
3727         if (!lpfc_is_link_up(phba))
3728                 return 0;
3729
3730         switch (phba->fc_linkspeed) {
3731         case LPFC_LINK_SPEED_1GHZ:
3732                 link_speed = 1000;
3733                 break;
3734         case LPFC_LINK_SPEED_2GHZ:
3735                 link_speed = 2000;
3736                 break;
3737         case LPFC_LINK_SPEED_4GHZ:
3738                 link_speed = 4000;
3739                 break;
3740         case LPFC_LINK_SPEED_8GHZ:
3741                 link_speed = 8000;
3742                 break;
3743         case LPFC_LINK_SPEED_10GHZ:
3744                 link_speed = 10000;
3745                 break;
3746         case LPFC_LINK_SPEED_16GHZ:
3747                 link_speed = 16000;
3748                 break;
3749         default:
3750                 link_speed = 0;
3751         }
3752         return link_speed;
3753 }
3754
3755 /**
3756  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3757  * @phba: pointer to lpfc hba data structure.
3758  * @evt_code: asynchronous event code.
3759  * @speed_code: asynchronous event link speed code.
3760  *
3761  * This routine is to parse the giving SLI4 async event link speed code into
3762  * value of Mbps for the link speed.
3763  *
3764  * Return: link speed in terms of Mbps.
3765  **/
3766 static uint32_t
3767 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3768                            uint8_t speed_code)
3769 {
3770         uint32_t port_speed;
3771
3772         switch (evt_code) {
3773         case LPFC_TRAILER_CODE_LINK:
3774                 switch (speed_code) {
3775                 case LPFC_EVT_CODE_LINK_NO_LINK:
3776                         port_speed = 0;
3777                         break;
3778                 case LPFC_EVT_CODE_LINK_10_MBIT:
3779                         port_speed = 10;
3780                         break;
3781                 case LPFC_EVT_CODE_LINK_100_MBIT:
3782                         port_speed = 100;
3783                         break;
3784                 case LPFC_EVT_CODE_LINK_1_GBIT:
3785                         port_speed = 1000;
3786                         break;
3787                 case LPFC_EVT_CODE_LINK_10_GBIT:
3788                         port_speed = 10000;
3789                         break;
3790                 default:
3791                         port_speed = 0;
3792                 }
3793                 break;
3794         case LPFC_TRAILER_CODE_FC:
3795                 switch (speed_code) {
3796                 case LPFC_EVT_CODE_FC_NO_LINK:
3797                         port_speed = 0;
3798                         break;
3799                 case LPFC_EVT_CODE_FC_1_GBAUD:
3800                         port_speed = 1000;
3801                         break;
3802                 case LPFC_EVT_CODE_FC_2_GBAUD:
3803                         port_speed = 2000;
3804                         break;
3805                 case LPFC_EVT_CODE_FC_4_GBAUD:
3806                         port_speed = 4000;
3807                         break;
3808                 case LPFC_EVT_CODE_FC_8_GBAUD:
3809                         port_speed = 8000;
3810                         break;
3811                 case LPFC_EVT_CODE_FC_10_GBAUD:
3812                         port_speed = 10000;
3813                         break;
3814                 case LPFC_EVT_CODE_FC_16_GBAUD:
3815                         port_speed = 16000;
3816                         break;
3817                 default:
3818                         port_speed = 0;
3819                 }
3820                 break;
3821         default:
3822                 port_speed = 0;
3823         }
3824         return port_speed;
3825 }
3826
3827 /**
3828  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3829  * @phba: pointer to lpfc hba data structure.
3830  * @acqe_link: pointer to the async link completion queue entry.
3831  *
3832  * This routine is to handle the SLI4 asynchronous FCoE link event.
3833  **/
3834 static void
3835 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3836                          struct lpfc_acqe_link *acqe_link)
3837 {
3838         struct lpfc_dmabuf *mp;
3839         LPFC_MBOXQ_t *pmb;
3840         MAILBOX_t *mb;
3841         struct lpfc_mbx_read_top *la;
3842         uint8_t att_type;
3843         int rc;
3844
3845         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3846         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3847                 return;
3848         phba->fcoe_eventtag = acqe_link->event_tag;
3849         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3850         if (!pmb) {
3851                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3852                                 "0395 The mboxq allocation failed\n");
3853                 return;
3854         }
3855         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3856         if (!mp) {
3857                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3858                                 "0396 The lpfc_dmabuf allocation failed\n");
3859                 goto out_free_pmb;
3860         }
3861         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3862         if (!mp->virt) {
3863                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3864                                 "0397 The mbuf allocation failed\n");
3865                 goto out_free_dmabuf;
3866         }
3867
3868         /* Cleanup any outstanding ELS commands */
3869         lpfc_els_flush_all_cmd(phba);
3870
3871         /* Block ELS IOCBs until we have done process link event */
3872         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3873
3874         /* Update link event statistics */
3875         phba->sli.slistat.link_event++;
3876
3877         /* Create lpfc_handle_latt mailbox command from link ACQE */
3878         lpfc_read_topology(phba, pmb, mp);
3879         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3880         pmb->vport = phba->pport;
3881
3882         /* Keep the link status for extra SLI4 state machine reference */
3883         phba->sli4_hba.link_state.speed =
3884                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3885                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3886         phba->sli4_hba.link_state.duplex =
3887                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3888         phba->sli4_hba.link_state.status =
3889                                 bf_get(lpfc_acqe_link_status, acqe_link);
3890         phba->sli4_hba.link_state.type =
3891                                 bf_get(lpfc_acqe_link_type, acqe_link);
3892         phba->sli4_hba.link_state.number =
3893                                 bf_get(lpfc_acqe_link_number, acqe_link);
3894         phba->sli4_hba.link_state.fault =
3895                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3896         phba->sli4_hba.link_state.logical_speed =
3897                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3898
3899         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3900                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3901                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3902                         "Logical speed:%dMbps Fault:%d\n",
3903                         phba->sli4_hba.link_state.speed,
3904                         phba->sli4_hba.link_state.topology,
3905                         phba->sli4_hba.link_state.status,
3906                         phba->sli4_hba.link_state.type,
3907                         phba->sli4_hba.link_state.number,
3908                         phba->sli4_hba.link_state.logical_speed,
3909                         phba->sli4_hba.link_state.fault);
3910         /*
3911          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3912          * topology info. Note: Optional for non FC-AL ports.
3913          */
3914         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3915                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3916                 if (rc == MBX_NOT_FINISHED)
3917                         goto out_free_dmabuf;
3918                 return;
3919         }
3920         /*
3921          * For FCoE Mode: fill in all the topology information we need and call
3922          * the READ_TOPOLOGY completion routine to continue without actually
3923          * sending the READ_TOPOLOGY mailbox command to the port.
3924          */
3925         /* Parse and translate status field */
3926         mb = &pmb->u.mb;
3927         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3928
3929         /* Parse and translate link attention fields */
3930         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3931         la->eventTag = acqe_link->event_tag;
3932         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3933         bf_set(lpfc_mbx_read_top_link_spd, la,
3934                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3935
3936         /* Fake the the following irrelvant fields */
3937         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3938         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3939         bf_set(lpfc_mbx_read_top_il, la, 0);
3940         bf_set(lpfc_mbx_read_top_pb, la, 0);
3941         bf_set(lpfc_mbx_read_top_fa, la, 0);
3942         bf_set(lpfc_mbx_read_top_mm, la, 0);
3943
3944         /* Invoke the lpfc_handle_latt mailbox command callback function */
3945         lpfc_mbx_cmpl_read_topology(phba, pmb);
3946
3947         return;
3948
3949 out_free_dmabuf:
3950         kfree(mp);
3951 out_free_pmb:
3952         mempool_free(pmb, phba->mbox_mem_pool);
3953 }
3954
3955 /**
3956  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3957  * @phba: pointer to lpfc hba data structure.
3958  * @acqe_fc: pointer to the async fc completion queue entry.
3959  *
3960  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3961  * that the event was received and then issue a read_topology mailbox command so
3962  * that the rest of the driver will treat it the same as SLI3.
3963  **/
3964 static void
3965 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3966 {
3967         struct lpfc_dmabuf *mp;
3968         LPFC_MBOXQ_t *pmb;
3969         int rc;
3970
3971         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3972             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3973                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3974                                 "2895 Non FC link Event detected.(%d)\n",
3975                                 bf_get(lpfc_trailer_type, acqe_fc));
3976                 return;
3977         }
3978         /* Keep the link status for extra SLI4 state machine reference */
3979         phba->sli4_hba.link_state.speed =
3980                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3981                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3982         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3983         phba->sli4_hba.link_state.topology =
3984                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3985         phba->sli4_hba.link_state.status =
3986                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3987         phba->sli4_hba.link_state.type =
3988                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3989         phba->sli4_hba.link_state.number =
3990                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3991         phba->sli4_hba.link_state.fault =
3992                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3993         phba->sli4_hba.link_state.logical_speed =
3994                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3995         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3996                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3997                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3998                         "%dMbps Fault:%d\n",
3999                         phba->sli4_hba.link_state.speed,
4000                         phba->sli4_hba.link_state.topology,
4001                         phba->sli4_hba.link_state.status,
4002                         phba->sli4_hba.link_state.type,
4003                         phba->sli4_hba.link_state.number,
4004                         phba->sli4_hba.link_state.logical_speed,
4005                         phba->sli4_hba.link_state.fault);
4006         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4007         if (!pmb) {
4008                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4009                                 "2897 The mboxq allocation failed\n");
4010                 return;
4011         }
4012         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4013         if (!mp) {
4014                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4015                                 "2898 The lpfc_dmabuf allocation failed\n");
4016                 goto out_free_pmb;
4017         }
4018         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4019         if (!mp->virt) {
4020                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4021                                 "2899 The mbuf allocation failed\n");
4022                 goto out_free_dmabuf;
4023         }
4024
4025         /* Cleanup any outstanding ELS commands */
4026         lpfc_els_flush_all_cmd(phba);
4027
4028         /* Block ELS IOCBs until we have done process link event */
4029         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4030
4031         /* Update link event statistics */
4032         phba->sli.slistat.link_event++;
4033
4034         /* Create lpfc_handle_latt mailbox command from link ACQE */
4035         lpfc_read_topology(phba, pmb, mp);
4036         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4037         pmb->vport = phba->pport;
4038
4039         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4040         if (rc == MBX_NOT_FINISHED)
4041                 goto out_free_dmabuf;
4042         return;
4043
4044 out_free_dmabuf:
4045         kfree(mp);
4046 out_free_pmb:
4047         mempool_free(pmb, phba->mbox_mem_pool);
4048 }
4049
4050 /**
4051  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4052  * @phba: pointer to lpfc hba data structure.
4053  * @acqe_fc: pointer to the async SLI completion queue entry.
4054  *
4055  * This routine is to handle the SLI4 asynchronous SLI events.
4056  **/
4057 static void
4058 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4059 {
4060         char port_name;
4061         char message[128];
4062         uint8_t status;
4063         uint8_t evt_type;
4064         struct temp_event temp_event_data;
4065         struct lpfc_acqe_misconfigured_event *misconfigured;
4066         struct Scsi_Host  *shost;
4067
4068         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4069
4070         /* Special case Lancer */
4071         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4072                  LPFC_SLI_INTF_IF_TYPE_2) {
4073                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4074                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4075                                 "x%08x SLI Event Type:%d\n",
4076                                 acqe_sli->event_data1, acqe_sli->event_data2,
4077                                 evt_type);
4078                 return;
4079         }
4080
4081         port_name = phba->Port[0];
4082         if (port_name == 0x00)
4083                 port_name = '?'; /* get port name is empty */
4084
4085         switch (evt_type) {
4086         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4087                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4088                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4089                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4090
4091                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4092                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4093                                 acqe_sli->event_data1, port_name);
4094
4095                 shost = lpfc_shost_from_vport(phba->pport);
4096                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4097                                           sizeof(temp_event_data),
4098                                           (char *)&temp_event_data,
4099                                           SCSI_NL_VID_TYPE_PCI
4100                                           | PCI_VENDOR_ID_EMULEX);
4101                 break;
4102         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4103                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4104                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4105                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4106
4107                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4108                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4109                                 acqe_sli->event_data1, port_name);
4110
4111                 shost = lpfc_shost_from_vport(phba->pport);
4112                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4113                                           sizeof(temp_event_data),
4114                                           (char *)&temp_event_data,
4115                                           SCSI_NL_VID_TYPE_PCI
4116                                           | PCI_VENDOR_ID_EMULEX);
4117                 break;
4118         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4119                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4120                                         &acqe_sli->event_data1;
4121
4122                 /* fetch the status for this port */
4123                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4124                 case LPFC_LINK_NUMBER_0:
4125                         status = bf_get(lpfc_sli_misconfigured_port0,
4126                                         &misconfigured->theEvent);
4127                         break;
4128                 case LPFC_LINK_NUMBER_1:
4129                         status = bf_get(lpfc_sli_misconfigured_port1,
4130                                         &misconfigured->theEvent);
4131                         break;
4132                 case LPFC_LINK_NUMBER_2:
4133                         status = bf_get(lpfc_sli_misconfigured_port2,
4134                                         &misconfigured->theEvent);
4135                         break;
4136                 case LPFC_LINK_NUMBER_3:
4137                         status = bf_get(lpfc_sli_misconfigured_port3,
4138                                         &misconfigured->theEvent);
4139                         break;
4140                 default:
4141                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4142                         break;
4143                 }
4144
4145                 switch (status) {
4146                 case LPFC_SLI_EVENT_STATUS_VALID:
4147                         return; /* no message if the sfp is okay */
4148                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4149                         sprintf(message, "Optics faulted/incorrectly "
4150                                 "installed/not installed - Reseat optics, "
4151                                 "if issue not resolved, replace.");
4152                         break;
4153                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4154                         sprintf(message,
4155                                 "Optics of two types installed - Remove one "
4156                                 "optic or install matching pair of optics.");
4157                         break;
4158                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4159                         sprintf(message, "Incompatible optics - Replace with "
4160                                 "compatible optics for card to function.");
4161                         break;
4162                 default:
4163                         /* firmware is reporting a status we don't know about */
4164                         sprintf(message, "Unknown event status x%02x", status);
4165                         break;
4166                 }
4167
4168                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4169                                 "3176 Misconfigured Physical Port - "
4170                                 "Port Name %c %s\n", port_name, message);
4171                 break;
4172         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4173                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4174                                 "3192 Remote DPort Test Initiated - "
4175                                 "Event Data1:x%08x Event Data2: x%08x\n",
4176                                 acqe_sli->event_data1, acqe_sli->event_data2);
4177                 break;
4178         default:
4179                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4180                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4181                                 "x%08x SLI Event Type:%d\n",
4182                                 acqe_sli->event_data1, acqe_sli->event_data2,
4183                                 evt_type);
4184                 break;
4185         }
4186 }
4187
4188 /**
4189  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4190  * @vport: pointer to vport data structure.
4191  *
4192  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4193  * response to a CVL event.
4194  *
4195  * Return the pointer to the ndlp with the vport if successful, otherwise
4196  * return NULL.
4197  **/
4198 static struct lpfc_nodelist *
4199 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4200 {
4201         struct lpfc_nodelist *ndlp;
4202         struct Scsi_Host *shost;
4203         struct lpfc_hba *phba;
4204
4205         if (!vport)
4206                 return NULL;
4207         phba = vport->phba;
4208         if (!phba)
4209                 return NULL;
4210         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4211         if (!ndlp) {
4212                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4213                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4214                 if (!ndlp)
4215                         return 0;
4216                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4217                 /* Set the node type */
4218                 ndlp->nlp_type |= NLP_FABRIC;
4219                 /* Put ndlp onto node list */
4220                 lpfc_enqueue_node(vport, ndlp);
4221         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4222                 /* re-setup ndlp without removing from node list */
4223                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4224                 if (!ndlp)
4225                         return 0;
4226         }
4227         if ((phba->pport->port_state < LPFC_FLOGI) &&
4228                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4229                 return NULL;
4230         /* If virtual link is not yet instantiated ignore CVL */
4231         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4232                 && (vport->port_state != LPFC_VPORT_FAILED))
4233                 return NULL;
4234         shost = lpfc_shost_from_vport(vport);
4235         if (!shost)
4236                 return NULL;
4237         lpfc_linkdown_port(vport);
4238         lpfc_cleanup_pending_mbox(vport);
4239         spin_lock_irq(shost->host_lock);
4240         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4241         spin_unlock_irq(shost->host_lock);
4242
4243         return ndlp;
4244 }
4245
4246 /**
4247  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4248  * @vport: pointer to lpfc hba data structure.
4249  *
4250  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4251  * response to a FCF dead event.
4252  **/
4253 static void
4254 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4255 {
4256         struct lpfc_vport **vports;
4257         int i;
4258
4259         vports = lpfc_create_vport_work_array(phba);
4260         if (vports)
4261                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4262                         lpfc_sli4_perform_vport_cvl(vports[i]);
4263         lpfc_destroy_vport_work_array(phba, vports);
4264 }
4265
4266 /**
4267  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4268  * @phba: pointer to lpfc hba data structure.
4269  * @acqe_link: pointer to the async fcoe completion queue entry.
4270  *
4271  * This routine is to handle the SLI4 asynchronous fcoe event.
4272  **/
4273 static void
4274 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4275                         struct lpfc_acqe_fip *acqe_fip)
4276 {
4277         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4278         int rc;
4279         struct lpfc_vport *vport;
4280         struct lpfc_nodelist *ndlp;
4281         struct Scsi_Host  *shost;
4282         int active_vlink_present;
4283         struct lpfc_vport **vports;
4284         int i;
4285
4286         phba->fc_eventTag = acqe_fip->event_tag;
4287         phba->fcoe_eventtag = acqe_fip->event_tag;
4288         switch (event_type) {
4289         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4290         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4291                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4292                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4293                                         LOG_DISCOVERY,
4294                                         "2546 New FCF event, evt_tag:x%x, "
4295                                         "index:x%x\n",
4296                                         acqe_fip->event_tag,
4297                                         acqe_fip->index);
4298                 else
4299                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4300                                         LOG_DISCOVERY,
4301                                         "2788 FCF param modified event, "
4302                                         "evt_tag:x%x, index:x%x\n",
4303                                         acqe_fip->event_tag,
4304                                         acqe_fip->index);
4305                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4306                         /*
4307                          * During period of FCF discovery, read the FCF
4308                          * table record indexed by the event to update
4309                          * FCF roundrobin failover eligible FCF bmask.
4310                          */
4311                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4312                                         LOG_DISCOVERY,
4313                                         "2779 Read FCF (x%x) for updating "
4314                                         "roundrobin FCF failover bmask\n",
4315                                         acqe_fip->index);
4316                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4317                 }
4318
4319                 /* If the FCF discovery is in progress, do nothing. */
4320                 spin_lock_irq(&phba->hbalock);
4321                 if (phba->hba_flag & FCF_TS_INPROG) {
4322                         spin_unlock_irq(&phba->hbalock);
4323                         break;
4324                 }
4325                 /* If fast FCF failover rescan event is pending, do nothing */
4326                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4327                         spin_unlock_irq(&phba->hbalock);
4328                         break;
4329                 }
4330
4331                 /* If the FCF has been in discovered state, do nothing. */
4332                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4333                         spin_unlock_irq(&phba->hbalock);
4334                         break;
4335                 }
4336                 spin_unlock_irq(&phba->hbalock);
4337
4338                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4339                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4340                                 "2770 Start FCF table scan per async FCF "
4341                                 "event, evt_tag:x%x, index:x%x\n",
4342                                 acqe_fip->event_tag, acqe_fip->index);
4343                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4344                                                      LPFC_FCOE_FCF_GET_FIRST);
4345                 if (rc)
4346                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4347                                         "2547 Issue FCF scan read FCF mailbox "
4348                                         "command failed (x%x)\n", rc);
4349                 break;
4350
4351         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4352                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4353                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4354                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4355                         acqe_fip->event_tag);
4356                 break;
4357
4358         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4359                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4360                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4361                         "2549 FCF (x%x) disconnected from network, "
4362                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4363                 /*
4364                  * If we are in the middle of FCF failover process, clear
4365                  * the corresponding FCF bit in the roundrobin bitmap.
4366                  */
4367                 spin_lock_irq(&phba->hbalock);
4368                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4369                         spin_unlock_irq(&phba->hbalock);
4370                         /* Update FLOGI FCF failover eligible FCF bmask */
4371                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4372                         break;
4373                 }
4374                 spin_unlock_irq(&phba->hbalock);
4375
4376                 /* If the event is not for currently used fcf do nothing */
4377                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4378                         break;
4379
4380                 /*
4381                  * Otherwise, request the port to rediscover the entire FCF
4382                  * table for a fast recovery from case that the current FCF
4383                  * is no longer valid as we are not in the middle of FCF
4384                  * failover process already.
4385                  */
4386                 spin_lock_irq(&phba->hbalock);
4387                 /* Mark the fast failover process in progress */
4388                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4389                 spin_unlock_irq(&phba->hbalock);
4390
4391                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4392                                 "2771 Start FCF fast failover process due to "
4393                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4394                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4395                 rc = lpfc_sli4_redisc_fcf_table(phba);
4396                 if (rc) {
4397                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4398                                         LOG_DISCOVERY,
4399                                         "2772 Issue FCF rediscover mabilbox "
4400                                         "command failed, fail through to FCF "
4401                                         "dead event\n");
4402                         spin_lock_irq(&phba->hbalock);
4403                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4404                         spin_unlock_irq(&phba->hbalock);
4405                         /*
4406                          * Last resort will fail over by treating this
4407                          * as a link down to FCF registration.
4408                          */
4409                         lpfc_sli4_fcf_dead_failthrough(phba);
4410                 } else {
4411                         /* Reset FCF roundrobin bmask for new discovery */
4412                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4413                         /*
4414                          * Handling fast FCF failover to a DEAD FCF event is
4415                          * considered equalivant to receiving CVL to all vports.
4416                          */
4417                         lpfc_sli4_perform_all_vport_cvl(phba);
4418                 }
4419                 break;
4420         case LPFC_FIP_EVENT_TYPE_CVL:
4421                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4422                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4423                         "2718 Clear Virtual Link Received for VPI 0x%x"
4424                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4425
4426                 vport = lpfc_find_vport_by_vpid(phba,
4427                                                 acqe_fip->index);
4428                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4429                 if (!ndlp)
4430                         break;
4431                 active_vlink_present = 0;
4432
4433                 vports = lpfc_create_vport_work_array(phba);
4434                 if (vports) {
4435                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4436                                         i++) {
4437                                 if ((!(vports[i]->fc_flag &
4438                                         FC_VPORT_CVL_RCVD)) &&
4439                                         (vports[i]->port_state > LPFC_FDISC)) {
4440                                         active_vlink_present = 1;
4441                                         break;
4442                                 }
4443                         }
4444                         lpfc_destroy_vport_work_array(phba, vports);
4445                 }
4446
4447                 if (active_vlink_present) {
4448                         /*
4449                          * If there are other active VLinks present,
4450                          * re-instantiate the Vlink using FDISC.
4451                          */
4452                         mod_timer(&ndlp->nlp_delayfunc,
4453                                   jiffies + msecs_to_jiffies(1000));
4454                         shost = lpfc_shost_from_vport(vport);
4455                         spin_lock_irq(shost->host_lock);
4456                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4457                         spin_unlock_irq(shost->host_lock);
4458                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4459                         vport->port_state = LPFC_FDISC;
4460                 } else {
4461                         /*
4462                          * Otherwise, we request port to rediscover
4463                          * the entire FCF table for a fast recovery
4464                          * from possible case that the current FCF
4465                          * is no longer valid if we are not already
4466                          * in the FCF failover process.
4467                          */
4468                         spin_lock_irq(&phba->hbalock);
4469                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4470                                 spin_unlock_irq(&phba->hbalock);
4471                                 break;
4472                         }
4473                         /* Mark the fast failover process in progress */
4474                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4475                         spin_unlock_irq(&phba->hbalock);
4476                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4477                                         LOG_DISCOVERY,
4478                                         "2773 Start FCF failover per CVL, "
4479                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4480                         rc = lpfc_sli4_redisc_fcf_table(phba);
4481                         if (rc) {
4482                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4483                                                 LOG_DISCOVERY,
4484                                                 "2774 Issue FCF rediscover "
4485                                                 "mabilbox command failed, "
4486                                                 "through to CVL event\n");
4487                                 spin_lock_irq(&phba->hbalock);
4488                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4489                                 spin_unlock_irq(&phba->hbalock);
4490                                 /*
4491                                  * Last resort will be re-try on the
4492                                  * the current registered FCF entry.
4493                                  */
4494                                 lpfc_retry_pport_discovery(phba);
4495                         } else
4496                                 /*
4497                                  * Reset FCF roundrobin bmask for new
4498                                  * discovery.
4499                                  */
4500                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4501                 }
4502                 break;
4503         default:
4504                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4505                         "0288 Unknown FCoE event type 0x%x event tag "
4506                         "0x%x\n", event_type, acqe_fip->event_tag);
4507                 break;
4508         }
4509 }
4510
4511 /**
4512  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4513  * @phba: pointer to lpfc hba data structure.
4514  * @acqe_link: pointer to the async dcbx completion queue entry.
4515  *
4516  * This routine is to handle the SLI4 asynchronous dcbx event.
4517  **/
4518 static void
4519 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4520                          struct lpfc_acqe_dcbx *acqe_dcbx)
4521 {
4522         phba->fc_eventTag = acqe_dcbx->event_tag;
4523         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4524                         "0290 The SLI4 DCBX asynchronous event is not "
4525                         "handled yet\n");
4526 }
4527
4528 /**
4529  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4530  * @phba: pointer to lpfc hba data structure.
4531  * @acqe_link: pointer to the async grp5 completion queue entry.
4532  *
4533  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4534  * is an asynchronous notified of a logical link speed change.  The Port
4535  * reports the logical link speed in units of 10Mbps.
4536  **/
4537 static void
4538 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4539                          struct lpfc_acqe_grp5 *acqe_grp5)
4540 {
4541         uint16_t prev_ll_spd;
4542
4543         phba->fc_eventTag = acqe_grp5->event_tag;
4544         phba->fcoe_eventtag = acqe_grp5->event_tag;
4545         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4546         phba->sli4_hba.link_state.logical_speed =
4547                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4548         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4549                         "2789 GRP5 Async Event: Updating logical link speed "
4550                         "from %dMbps to %dMbps\n", prev_ll_spd,
4551                         phba->sli4_hba.link_state.logical_speed);
4552 }
4553
4554 /**
4555  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4556  * @phba: pointer to lpfc hba data structure.
4557  *
4558  * This routine is invoked by the worker thread to process all the pending
4559  * SLI4 asynchronous events.
4560  **/
4561 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4562 {
4563         struct lpfc_cq_event *cq_event;
4564
4565         /* First, declare the async event has been handled */
4566         spin_lock_irq(&phba->hbalock);
4567         phba->hba_flag &= ~ASYNC_EVENT;
4568         spin_unlock_irq(&phba->hbalock);
4569         /* Now, handle all the async events */
4570         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4571                 /* Get the first event from the head of the event queue */
4572                 spin_lock_irq(&phba->hbalock);
4573                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4574                                  cq_event, struct lpfc_cq_event, list);
4575                 spin_unlock_irq(&phba->hbalock);
4576                 /* Process the asynchronous event */
4577                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4578                 case LPFC_TRAILER_CODE_LINK:
4579                         lpfc_sli4_async_link_evt(phba,
4580                                                  &cq_event->cqe.acqe_link);
4581                         break;
4582                 case LPFC_TRAILER_CODE_FCOE:
4583                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4584                         break;
4585                 case LPFC_TRAILER_CODE_DCBX:
4586                         lpfc_sli4_async_dcbx_evt(phba,
4587                                                  &cq_event->cqe.acqe_dcbx);
4588                         break;
4589                 case LPFC_TRAILER_CODE_GRP5:
4590                         lpfc_sli4_async_grp5_evt(phba,
4591                                                  &cq_event->cqe.acqe_grp5);
4592                         break;
4593                 case LPFC_TRAILER_CODE_FC:
4594                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4595                         break;
4596                 case LPFC_TRAILER_CODE_SLI:
4597                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4598                         break;
4599                 default:
4600                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4601                                         "1804 Invalid asynchrous event code: "
4602                                         "x%x\n", bf_get(lpfc_trailer_code,
4603                                         &cq_event->cqe.mcqe_cmpl));
4604                         break;
4605                 }
4606                 /* Free the completion event processed to the free pool */
4607                 lpfc_sli4_cq_event_release(phba, cq_event);
4608         }
4609 }
4610
4611 /**
4612  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4613  * @phba: pointer to lpfc hba data structure.
4614  *
4615  * This routine is invoked by the worker thread to process FCF table
4616  * rediscovery pending completion event.
4617  **/
4618 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4619 {
4620         int rc;
4621
4622         spin_lock_irq(&phba->hbalock);
4623         /* Clear FCF rediscovery timeout event */
4624         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4625         /* Clear driver fast failover FCF record flag */
4626         phba->fcf.failover_rec.flag = 0;
4627         /* Set state for FCF fast failover */
4628         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4629         spin_unlock_irq(&phba->hbalock);
4630
4631         /* Scan FCF table from the first entry to re-discover SAN */
4632         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4633                         "2777 Start post-quiescent FCF table scan\n");
4634         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4635         if (rc)
4636                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4637                                 "2747 Issue FCF scan read FCF mailbox "
4638                                 "command failed 0x%x\n", rc);
4639 }
4640
4641 /**
4642  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4643  * @phba: pointer to lpfc hba data structure.
4644  * @dev_grp: The HBA PCI-Device group number.
4645  *
4646  * This routine is invoked to set up the per HBA PCI-Device group function
4647  * API jump table entries.
4648  *
4649  * Return: 0 if success, otherwise -ENODEV
4650  **/
4651 int
4652 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4653 {
4654         int rc;
4655
4656         /* Set up lpfc PCI-device group */
4657         phba->pci_dev_grp = dev_grp;
4658
4659         /* The LPFC_PCI_DEV_OC uses SLI4 */
4660         if (dev_grp == LPFC_PCI_DEV_OC)
4661                 phba->sli_rev = LPFC_SLI_REV4;
4662
4663         /* Set up device INIT API function jump table */
4664         rc = lpfc_init_api_table_setup(phba, dev_grp);
4665         if (rc)
4666                 return -ENODEV;
4667         /* Set up SCSI API function jump table */
4668         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4669         if (rc)
4670                 return -ENODEV;
4671         /* Set up SLI API function jump table */
4672         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4673         if (rc)
4674                 return -ENODEV;
4675         /* Set up MBOX API function jump table */
4676         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4677         if (rc)
4678                 return -ENODEV;
4679
4680         return 0;
4681 }
4682
4683 /**
4684  * lpfc_log_intr_mode - Log the active interrupt mode
4685  * @phba: pointer to lpfc hba data structure.
4686  * @intr_mode: active interrupt mode adopted.
4687  *
4688  * This routine it invoked to log the currently used active interrupt mode
4689  * to the device.
4690  **/
4691 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4692 {
4693         switch (intr_mode) {
4694         case 0:
4695                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4696                                 "0470 Enable INTx interrupt mode.\n");
4697                 break;
4698         case 1:
4699                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4700                                 "0481 Enabled MSI interrupt mode.\n");
4701                 break;
4702         case 2:
4703                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4704                                 "0480 Enabled MSI-X interrupt mode.\n");
4705                 break;
4706         default:
4707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4708                                 "0482 Illegal interrupt mode.\n");
4709                 break;
4710         }
4711         return;
4712 }
4713
4714 /**
4715  * lpfc_enable_pci_dev - Enable a generic PCI device.
4716  * @phba: pointer to lpfc hba data structure.
4717  *
4718  * This routine is invoked to enable the PCI device that is common to all
4719  * PCI devices.
4720  *
4721  * Return codes
4722  *      0 - successful
4723  *      other values - error
4724  **/
4725 static int
4726 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4727 {
4728         struct pci_dev *pdev;
4729         int bars = 0;
4730
4731         /* Obtain PCI device reference */
4732         if (!phba->pcidev)
4733                 goto out_error;
4734         else
4735                 pdev = phba->pcidev;
4736         /* Select PCI BARs */
4737         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4738         /* Enable PCI device */
4739         if (pci_enable_device_mem(pdev))
4740                 goto out_error;
4741         /* Request PCI resource for the device */
4742         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4743                 goto out_disable_device;
4744         /* Set up device as PCI master and save state for EEH */
4745         pci_set_master(pdev);
4746         pci_try_set_mwi(pdev);
4747         pci_save_state(pdev);
4748
4749         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4750         if (pci_is_pcie(pdev))
4751                 pdev->needs_freset = 1;
4752
4753         return 0;
4754
4755 out_disable_device:
4756         pci_disable_device(pdev);
4757 out_error:
4758         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4759                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4760         return -ENODEV;
4761 }
4762
4763 /**
4764  * lpfc_disable_pci_dev - Disable a generic PCI device.
4765  * @phba: pointer to lpfc hba data structure.
4766  *
4767  * This routine is invoked to disable the PCI device that is common to all
4768  * PCI devices.
4769  **/
4770 static void
4771 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4772 {
4773         struct pci_dev *pdev;
4774         int bars;
4775
4776         /* Obtain PCI device reference */
4777         if (!phba->pcidev)
4778                 return;
4779         else
4780                 pdev = phba->pcidev;
4781         /* Select PCI BARs */
4782         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4783         /* Release PCI resource and disable PCI device */
4784         pci_release_selected_regions(pdev, bars);
4785         pci_disable_device(pdev);
4786
4787         return;
4788 }
4789
4790 /**
4791  * lpfc_reset_hba - Reset a hba
4792  * @phba: pointer to lpfc hba data structure.
4793  *
4794  * This routine is invoked to reset a hba device. It brings the HBA
4795  * offline, performs a board restart, and then brings the board back
4796  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4797  * on outstanding mailbox commands.
4798  **/
4799 void
4800 lpfc_reset_hba(struct lpfc_hba *phba)
4801 {
4802         /* If resets are disabled then set error state and return. */
4803         if (!phba->cfg_enable_hba_reset) {
4804                 phba->link_state = LPFC_HBA_ERROR;
4805                 return;
4806         }
4807         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4808                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4809         else
4810                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4811         lpfc_offline(phba);
4812         lpfc_sli_brdrestart(phba);
4813         lpfc_online(phba);
4814         lpfc_unblock_mgmt_io(phba);
4815 }
4816
4817 /**
4818  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4819  * @phba: pointer to lpfc hba data structure.
4820  *
4821  * This function enables the PCI SR-IOV virtual functions to a physical
4822  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4823  * enable the number of virtual functions to the physical function. As
4824  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4825  * API call does not considered as an error condition for most of the device.
4826  **/
4827 uint16_t
4828 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4829 {
4830         struct pci_dev *pdev = phba->pcidev;
4831         uint16_t nr_virtfn;
4832         int pos;
4833
4834         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4835         if (pos == 0)
4836                 return 0;
4837
4838         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4839         return nr_virtfn;
4840 }
4841
4842 /**
4843  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4844  * @phba: pointer to lpfc hba data structure.
4845  * @nr_vfn: number of virtual functions to be enabled.
4846  *
4847  * This function enables the PCI SR-IOV virtual functions to a physical
4848  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4849  * enable the number of virtual functions to the physical function. As
4850  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4851  * API call does not considered as an error condition for most of the device.
4852  **/
4853 int
4854 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4855 {
4856         struct pci_dev *pdev = phba->pcidev;
4857         uint16_t max_nr_vfn;
4858         int rc;
4859
4860         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4861         if (nr_vfn > max_nr_vfn) {
4862                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4863                                 "3057 Requested vfs (%d) greater than "
4864                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4865                 return -EINVAL;
4866         }
4867
4868         rc = pci_enable_sriov(pdev, nr_vfn);
4869         if (rc) {
4870                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4871                                 "2806 Failed to enable sriov on this device "
4872                                 "with vfn number nr_vf:%d, rc:%d\n",
4873                                 nr_vfn, rc);
4874         } else
4875                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4876                                 "2807 Successful enable sriov on this device "
4877                                 "with vfn number nr_vf:%d\n", nr_vfn);
4878         return rc;
4879 }
4880
4881 /**
4882  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4883  * @phba: pointer to lpfc hba data structure.
4884  *
4885  * This routine is invoked to set up the driver internal resources specific to
4886  * support the SLI-3 HBA device it attached to.
4887  *
4888  * Return codes
4889  *      0 - successful
4890  *      other values - error
4891  **/
4892 static int
4893 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4894 {
4895         struct lpfc_sli *psli;
4896         int rc;
4897
4898         /*
4899          * Initialize timers used by driver
4900          */
4901
4902         /* Heartbeat timer */
4903         init_timer(&phba->hb_tmofunc);
4904         phba->hb_tmofunc.function = lpfc_hb_timeout;
4905         phba->hb_tmofunc.data = (unsigned long)phba;
4906
4907         psli = &phba->sli;
4908         /* MBOX heartbeat timer */
4909         init_timer(&psli->mbox_tmo);
4910         psli->mbox_tmo.function = lpfc_mbox_timeout;
4911         psli->mbox_tmo.data = (unsigned long) phba;
4912         /* FCP polling mode timer */
4913         init_timer(&phba->fcp_poll_timer);
4914         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4915         phba->fcp_poll_timer.data = (unsigned long) phba;
4916         /* Fabric block timer */
4917         init_timer(&phba->fabric_block_timer);
4918         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4919         phba->fabric_block_timer.data = (unsigned long) phba;
4920         /* EA polling mode timer */
4921         init_timer(&phba->eratt_poll);
4922         phba->eratt_poll.function = lpfc_poll_eratt;
4923         phba->eratt_poll.data = (unsigned long) phba;
4924
4925         /* Host attention work mask setup */
4926         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4927         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4928
4929         /* Get all the module params for configuring this host */
4930         lpfc_get_cfgparam(phba);
4931         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4932                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4933                 /* check for menlo minimum sg count */
4934                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4935                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4936         }
4937
4938         if (!phba->sli.ring)
4939                 phba->sli.ring = (struct lpfc_sli_ring *)
4940                         kzalloc(LPFC_SLI3_MAX_RING *
4941                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4942         if (!phba->sli.ring)
4943                 return -ENOMEM;
4944
4945         /*
4946          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4947          * used to create the sg_dma_buf_pool must be dynamically calculated.
4948          */
4949
4950         /* Initialize the host templates the configured values. */
4951         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4952         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4953
4954         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4955         if (phba->cfg_enable_bg) {
4956                 /*
4957                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4958                  * the FCP rsp, and a BDE for each. Sice we have no control
4959                  * over how many protection data segments the SCSI Layer
4960                  * will hand us (ie: there could be one for every block
4961                  * in the IO), we just allocate enough BDEs to accomidate
4962                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4963                  * minimize the risk of running out.
4964                  */
4965                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4966                         sizeof(struct fcp_rsp) +
4967                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4968
4969                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4970                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4971
4972                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4973                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4974         } else {
4975                 /*
4976                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4977                  * the FCP rsp, a BDE for each, and a BDE for up to
4978                  * cfg_sg_seg_cnt data segments.
4979                  */
4980                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4981                         sizeof(struct fcp_rsp) +
4982                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4983
4984                 /* Total BDEs in BPL for scsi_sg_list */
4985                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4986         }
4987
4988         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4989                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4990                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4991                         phba->cfg_total_seg_cnt);
4992
4993         phba->max_vpi = LPFC_MAX_VPI;
4994         /* This will be set to correct value after config_port mbox */
4995         phba->max_vports = 0;
4996
4997         /*
4998          * Initialize the SLI Layer to run with lpfc HBAs.
4999          */
5000         lpfc_sli_setup(phba);
5001         lpfc_sli_queue_setup(phba);
5002
5003         /* Allocate device driver memory */
5004         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5005                 return -ENOMEM;
5006
5007         /*
5008          * Enable sr-iov virtual functions if supported and configured
5009          * through the module parameter.
5010          */
5011         if (phba->cfg_sriov_nr_virtfn > 0) {
5012                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5013                                                  phba->cfg_sriov_nr_virtfn);
5014                 if (rc) {
5015                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5016                                         "2808 Requested number of SR-IOV "
5017                                         "virtual functions (%d) is not "
5018                                         "supported\n",
5019                                         phba->cfg_sriov_nr_virtfn);
5020                         phba->cfg_sriov_nr_virtfn = 0;
5021                 }
5022         }
5023
5024         return 0;
5025 }
5026
5027 /**
5028  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5029  * @phba: pointer to lpfc hba data structure.
5030  *
5031  * This routine is invoked to unset the driver internal resources set up
5032  * specific for supporting the SLI-3 HBA device it attached to.
5033  **/
5034 static void
5035 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5036 {
5037         /* Free device driver memory allocated */
5038         lpfc_mem_free_all(phba);
5039
5040         return;
5041 }
5042
5043 /**
5044  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5045  * @phba: pointer to lpfc hba data structure.
5046  *
5047  * This routine is invoked to set up the driver internal resources specific to
5048  * support the SLI-4 HBA device it attached to.
5049  *
5050  * Return codes
5051  *      0 - successful
5052  *      other values - error
5053  **/
5054 static int
5055 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5056 {
5057         struct lpfc_vector_map_info *cpup;
5058         struct lpfc_sli *psli;
5059         LPFC_MBOXQ_t *mboxq;
5060         int rc, i, hbq_count, max_buf_size;
5061         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5062         struct lpfc_mqe *mqe;
5063         int longs;
5064         int fof_vectors = 0;
5065
5066         /* Get all the module params for configuring this host */
5067         lpfc_get_cfgparam(phba);
5068
5069         /* Before proceed, wait for POST done and device ready */
5070         rc = lpfc_sli4_post_status_check(phba);
5071         if (rc)
5072                 return -ENODEV;
5073
5074         /*
5075          * Initialize timers used by driver
5076          */
5077
5078         /* Heartbeat timer */
5079         init_timer(&phba->hb_tmofunc);
5080         phba->hb_tmofunc.function = lpfc_hb_timeout;
5081         phba->hb_tmofunc.data = (unsigned long)phba;
5082         init_timer(&phba->rrq_tmr);
5083         phba->rrq_tmr.function = lpfc_rrq_timeout;
5084         phba->rrq_tmr.data = (unsigned long)phba;
5085
5086         psli = &phba->sli;
5087         /* MBOX heartbeat timer */
5088         init_timer(&psli->mbox_tmo);
5089         psli->mbox_tmo.function = lpfc_mbox_timeout;
5090         psli->mbox_tmo.data = (unsigned long) phba;
5091         /* Fabric block timer */
5092         init_timer(&phba->fabric_block_timer);
5093         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5094         phba->fabric_block_timer.data = (unsigned long) phba;
5095         /* EA polling mode timer */
5096         init_timer(&phba->eratt_poll);
5097         phba->eratt_poll.function = lpfc_poll_eratt;
5098         phba->eratt_poll.data = (unsigned long) phba;
5099         /* FCF rediscover timer */
5100         init_timer(&phba->fcf.redisc_wait);
5101         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5102         phba->fcf.redisc_wait.data = (unsigned long)phba;
5103
5104         /*
5105          * Control structure for handling external multi-buffer mailbox
5106          * command pass-through.
5107          */
5108         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5109                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5110         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5111
5112         phba->max_vpi = LPFC_MAX_VPI;
5113
5114         /* This will be set to correct value after the read_config mbox */
5115         phba->max_vports = 0;
5116
5117         /* Program the default value of vlan_id and fc_map */
5118         phba->valid_vlan = 0;
5119         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5120         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5121         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5122
5123         /*
5124          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5125          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5126          */
5127         if (!phba->sli.ring)
5128                 phba->sli.ring = kzalloc(
5129                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5130                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5131         if (!phba->sli.ring)
5132                 return -ENOMEM;
5133
5134         /*
5135          * It doesn't matter what family our adapter is in, we are
5136          * limited to 2 Pages, 512 SGEs, for our SGL.
5137          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5138          */
5139         max_buf_size = (2 * SLI4_PAGE_SIZE);
5140         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5141                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5142
5143         /*
5144          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5145          * used to create the sg_dma_buf_pool must be dynamically calculated.
5146          */
5147
5148         if (phba->cfg_enable_bg) {
5149                 /*
5150                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5151                  * the FCP rsp, and a SGE for each. Sice we have no control
5152                  * over how many protection data segments the SCSI Layer
5153                  * will hand us (ie: there could be one for every block
5154                  * in the IO), we just allocate enough SGEs to accomidate
5155                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5156                  * minimize the risk of running out.
5157                  */
5158                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5159                         sizeof(struct fcp_rsp) + max_buf_size;
5160
5161                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5162                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5163
5164                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5165                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5166         } else {
5167                 /*
5168                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5169                  * the FCP rsp, a SGE for each, and a SGE for up to
5170                  * cfg_sg_seg_cnt data segments.
5171                  */
5172                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5173                         sizeof(struct fcp_rsp) +
5174                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5175
5176                 /* Total SGEs for scsi_sg_list */
5177                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5178                 /*
5179                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5180                  * to post 1 page for the SGL.
5181                  */
5182         }
5183
5184         /* Initialize the host templates with the updated values. */
5185         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5186         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5187
5188         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5189                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5190         else
5191                 phba->cfg_sg_dma_buf_size =
5192                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5193
5194         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5195                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5196                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5197                         phba->cfg_total_seg_cnt);
5198
5199         /* Initialize buffer queue management fields */
5200         hbq_count = lpfc_sli_hbq_count();
5201         for (i = 0; i < hbq_count; ++i)
5202                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5203         INIT_LIST_HEAD(&phba->rb_pend_list);
5204         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5205         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5206
5207         /*
5208          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5209          */
5210         /* Initialize the Abort scsi buffer list used by driver */
5211         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5212         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5213         /* This abort list used by worker thread */
5214         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5215
5216         /*
5217          * Initialize driver internal slow-path work queues
5218          */
5219
5220         /* Driver internel slow-path CQ Event pool */
5221         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5222         /* Response IOCB work queue list */
5223         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5224         /* Asynchronous event CQ Event work queue list */
5225         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5226         /* Fast-path XRI aborted CQ Event work queue list */
5227         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5228         /* Slow-path XRI aborted CQ Event work queue list */
5229         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5230         /* Receive queue CQ Event work queue list */
5231         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5232
5233         /* Initialize extent block lists. */
5234         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5235         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5236         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5237         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5238
5239         /* Initialize the driver internal SLI layer lists. */
5240         lpfc_sli_setup(phba);
5241         lpfc_sli_queue_setup(phba);
5242
5243         /* Allocate device driver memory */
5244         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5245         if (rc)
5246                 return -ENOMEM;
5247
5248         /* IF Type 2 ports get initialized now. */
5249         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5250             LPFC_SLI_INTF_IF_TYPE_2) {
5251                 rc = lpfc_pci_function_reset(phba);
5252                 if (unlikely(rc))
5253                         return -ENODEV;
5254                 phba->temp_sensor_support = 1;
5255         }
5256
5257         /* Create the bootstrap mailbox command */
5258         rc = lpfc_create_bootstrap_mbox(phba);
5259         if (unlikely(rc))
5260                 goto out_free_mem;
5261
5262         /* Set up the host's endian order with the device. */
5263         rc = lpfc_setup_endian_order(phba);
5264         if (unlikely(rc))
5265                 goto out_free_bsmbx;
5266
5267         /* Set up the hba's configuration parameters. */
5268         rc = lpfc_sli4_read_config(phba);
5269         if (unlikely(rc))
5270                 goto out_free_bsmbx;
5271         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5272         if (unlikely(rc))
5273                 goto out_free_bsmbx;
5274
5275         /* IF Type 0 ports get initialized now. */
5276         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5277             LPFC_SLI_INTF_IF_TYPE_0) {
5278                 rc = lpfc_pci_function_reset(phba);
5279                 if (unlikely(rc))
5280                         goto out_free_bsmbx;
5281         }
5282
5283         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5284                                                        GFP_KERNEL);
5285         if (!mboxq) {
5286                 rc = -ENOMEM;
5287                 goto out_free_bsmbx;
5288         }
5289
5290         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5291         lpfc_supported_pages(mboxq);
5292         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5293         if (!rc) {
5294                 mqe = &mboxq->u.mqe;
5295                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5296                        LPFC_MAX_SUPPORTED_PAGES);
5297                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5298                         switch (pn_page[i]) {
5299                         case LPFC_SLI4_PARAMETERS:
5300                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5301                                 break;
5302                         default:
5303                                 break;
5304                         }
5305                 }
5306                 /* Read the port's SLI4 Parameters capabilities if supported. */
5307                 if (phba->sli4_hba.pc_sli4_params.supported)
5308                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5309                 if (rc) {
5310                         mempool_free(mboxq, phba->mbox_mem_pool);
5311                         rc = -EIO;
5312                         goto out_free_bsmbx;
5313                 }
5314         }
5315         /*
5316          * Get sli4 parameters that override parameters from Port capabilities.
5317          * If this call fails, it isn't critical unless the SLI4 parameters come
5318          * back in conflict.
5319          */
5320         rc = lpfc_get_sli4_parameters(phba, mboxq);
5321         if (rc) {
5322                 if (phba->sli4_hba.extents_in_use &&
5323                     phba->sli4_hba.rpi_hdrs_in_use) {
5324                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5325                                 "2999 Unsupported SLI4 Parameters "
5326                                 "Extents and RPI headers enabled.\n");
5327                         goto out_free_bsmbx;
5328                 }
5329         }
5330         mempool_free(mboxq, phba->mbox_mem_pool);
5331
5332         /* Verify OAS is supported */
5333         lpfc_sli4_oas_verify(phba);
5334         if (phba->cfg_fof)
5335                 fof_vectors = 1;
5336
5337         /* Verify all the SLI4 queues */
5338         rc = lpfc_sli4_queue_verify(phba);
5339         if (rc)
5340                 goto out_free_bsmbx;
5341
5342         /* Create driver internal CQE event pool */
5343         rc = lpfc_sli4_cq_event_pool_create(phba);
5344         if (rc)
5345                 goto out_free_bsmbx;
5346
5347         /* Initialize sgl lists per host */
5348         lpfc_init_sgl_list(phba);
5349
5350         /* Allocate and initialize active sgl array */
5351         rc = lpfc_init_active_sgl_array(phba);
5352         if (rc) {
5353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5354                                 "1430 Failed to initialize sgl list.\n");
5355                 goto out_destroy_cq_event_pool;
5356         }
5357         rc = lpfc_sli4_init_rpi_hdrs(phba);
5358         if (rc) {
5359                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5360                                 "1432 Failed to initialize rpi headers.\n");
5361                 goto out_free_active_sgl;
5362         }
5363
5364         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5365         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5366         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5367                                          GFP_KERNEL);
5368         if (!phba->fcf.fcf_rr_bmask) {
5369                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5370                                 "2759 Failed allocate memory for FCF round "
5371                                 "robin failover bmask\n");
5372                 rc = -ENOMEM;
5373                 goto out_remove_rpi_hdrs;
5374         }
5375
5376         phba->sli4_hba.fcp_eq_hdl =
5377                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5378                             (fof_vectors + phba->cfg_fcp_io_channel)),
5379                             GFP_KERNEL);
5380         if (!phba->sli4_hba.fcp_eq_hdl) {
5381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5382                                 "2572 Failed allocate memory for "
5383                                 "fast-path per-EQ handle array\n");
5384                 rc = -ENOMEM;
5385                 goto out_free_fcf_rr_bmask;
5386         }
5387
5388         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5389                                   (fof_vectors +
5390                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5391         if (!phba->sli4_hba.msix_entries) {
5392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5393                                 "2573 Failed allocate memory for msi-x "
5394                                 "interrupt vector entries\n");
5395                 rc = -ENOMEM;
5396                 goto out_free_fcp_eq_hdl;
5397         }
5398
5399         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5400                                          phba->sli4_hba.num_present_cpu),
5401                                          GFP_KERNEL);
5402         if (!phba->sli4_hba.cpu_map) {
5403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5404                                 "3327 Failed allocate memory for msi-x "
5405                                 "interrupt vector mapping\n");
5406                 rc = -ENOMEM;
5407                 goto out_free_msix;
5408         }
5409         if (lpfc_used_cpu == NULL) {
5410                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5411                                          GFP_KERNEL);
5412                 if (!lpfc_used_cpu) {
5413                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5414                                         "3335 Failed allocate memory for msi-x "
5415                                         "interrupt vector mapping\n");
5416                         kfree(phba->sli4_hba.cpu_map);
5417                         rc = -ENOMEM;
5418                         goto out_free_msix;
5419                 }
5420                 for (i = 0; i < lpfc_present_cpu; i++)
5421                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5422         }
5423
5424         /* Initialize io channels for round robin */
5425         cpup = phba->sli4_hba.cpu_map;
5426         rc = 0;
5427         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5428                 cpup->channel_id = rc;
5429                 rc++;
5430                 if (rc >= phba->cfg_fcp_io_channel)
5431                         rc = 0;
5432         }
5433
5434         /*
5435          * Enable sr-iov virtual functions if supported and configured
5436          * through the module parameter.
5437          */
5438         if (phba->cfg_sriov_nr_virtfn > 0) {
5439                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5440                                                  phba->cfg_sriov_nr_virtfn);
5441                 if (rc) {
5442                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5443                                         "3020 Requested number of SR-IOV "
5444                                         "virtual functions (%d) is not "
5445                                         "supported\n",
5446                                         phba->cfg_sriov_nr_virtfn);
5447                         phba->cfg_sriov_nr_virtfn = 0;
5448                 }
5449         }
5450
5451         return 0;
5452
5453 out_free_msix:
5454         kfree(phba->sli4_hba.msix_entries);
5455 out_free_fcp_eq_hdl:
5456         kfree(phba->sli4_hba.fcp_eq_hdl);
5457 out_free_fcf_rr_bmask:
5458         kfree(phba->fcf.fcf_rr_bmask);
5459 out_remove_rpi_hdrs:
5460         lpfc_sli4_remove_rpi_hdrs(phba);
5461 out_free_active_sgl:
5462         lpfc_free_active_sgl(phba);
5463 out_destroy_cq_event_pool:
5464         lpfc_sli4_cq_event_pool_destroy(phba);
5465 out_free_bsmbx:
5466         lpfc_destroy_bootstrap_mbox(phba);
5467 out_free_mem:
5468         lpfc_mem_free(phba);
5469         return rc;
5470 }
5471
5472 /**
5473  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5474  * @phba: pointer to lpfc hba data structure.
5475  *
5476  * This routine is invoked to unset the driver internal resources set up
5477  * specific for supporting the SLI-4 HBA device it attached to.
5478  **/
5479 static void
5480 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5481 {
5482         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5483
5484         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5485         kfree(phba->sli4_hba.cpu_map);
5486         phba->sli4_hba.num_present_cpu = 0;
5487         phba->sli4_hba.num_online_cpu = 0;
5488         phba->sli4_hba.curr_disp_cpu = 0;
5489
5490         /* Free memory allocated for msi-x interrupt vector entries */
5491         kfree(phba->sli4_hba.msix_entries);
5492
5493         /* Free memory allocated for fast-path work queue handles */
5494         kfree(phba->sli4_hba.fcp_eq_hdl);
5495
5496         /* Free the allocated rpi headers. */
5497         lpfc_sli4_remove_rpi_hdrs(phba);
5498         lpfc_sli4_remove_rpis(phba);
5499
5500         /* Free eligible FCF index bmask */
5501         kfree(phba->fcf.fcf_rr_bmask);
5502
5503         /* Free the ELS sgl list */
5504         lpfc_free_active_sgl(phba);
5505         lpfc_free_els_sgl_list(phba);
5506
5507         /* Free the completion queue EQ event pool */
5508         lpfc_sli4_cq_event_release_all(phba);
5509         lpfc_sli4_cq_event_pool_destroy(phba);
5510
5511         /* Release resource identifiers. */
5512         lpfc_sli4_dealloc_resource_identifiers(phba);
5513
5514         /* Free the bsmbx region. */
5515         lpfc_destroy_bootstrap_mbox(phba);
5516
5517         /* Free the SLI Layer memory with SLI4 HBAs */
5518         lpfc_mem_free_all(phba);
5519
5520         /* Free the current connect table */
5521         list_for_each_entry_safe(conn_entry, next_conn_entry,
5522                 &phba->fcf_conn_rec_list, list) {
5523                 list_del_init(&conn_entry->list);
5524                 kfree(conn_entry);
5525         }
5526
5527         return;
5528 }
5529
5530 /**
5531  * lpfc_init_api_table_setup - Set up init api function jump table
5532  * @phba: The hba struct for which this call is being executed.
5533  * @dev_grp: The HBA PCI-Device group number.
5534  *
5535  * This routine sets up the device INIT interface API function jump table
5536  * in @phba struct.
5537  *
5538  * Returns: 0 - success, -ENODEV - failure.
5539  **/
5540 int
5541 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5542 {
5543         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5544         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5545         phba->lpfc_selective_reset = lpfc_selective_reset;
5546         switch (dev_grp) {
5547         case LPFC_PCI_DEV_LP:
5548                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5549                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5550                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5551                 break;
5552         case LPFC_PCI_DEV_OC:
5553                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5554                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5555                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5556                 break;
5557         default:
5558                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5559                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5560                                 dev_grp);
5561                 return -ENODEV;
5562                 break;
5563         }
5564         return 0;
5565 }
5566
5567 /**
5568  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5569  * @phba: pointer to lpfc hba data structure.
5570  *
5571  * This routine is invoked to set up the driver internal resources before the
5572  * device specific resource setup to support the HBA device it attached to.
5573  *
5574  * Return codes
5575  *      0 - successful
5576  *      other values - error
5577  **/
5578 static int
5579 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5580 {
5581         /*
5582          * Driver resources common to all SLI revisions
5583          */
5584         atomic_set(&phba->fast_event_count, 0);
5585         spin_lock_init(&phba->hbalock);
5586
5587         /* Initialize ndlp management spinlock */
5588         spin_lock_init(&phba->ndlp_lock);
5589
5590         INIT_LIST_HEAD(&phba->port_list);
5591         INIT_LIST_HEAD(&phba->work_list);
5592         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5593
5594         /* Initialize the wait queue head for the kernel thread */
5595         init_waitqueue_head(&phba->work_waitq);
5596
5597         /* Initialize the scsi buffer list used by driver for scsi IO */
5598         spin_lock_init(&phba->scsi_buf_list_get_lock);
5599         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5600         spin_lock_init(&phba->scsi_buf_list_put_lock);
5601         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5602
5603         /* Initialize the fabric iocb list */
5604         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5605
5606         /* Initialize list to save ELS buffers */
5607         INIT_LIST_HEAD(&phba->elsbuf);
5608
5609         /* Initialize FCF connection rec list */
5610         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5611
5612         /* Initialize OAS configuration list */
5613         spin_lock_init(&phba->devicelock);
5614         INIT_LIST_HEAD(&phba->luns);
5615
5616         return 0;
5617 }
5618
5619 /**
5620  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5621  * @phba: pointer to lpfc hba data structure.
5622  *
5623  * This routine is invoked to set up the driver internal resources after the
5624  * device specific resource setup to support the HBA device it attached to.
5625  *
5626  * Return codes
5627  *      0 - successful
5628  *      other values - error
5629  **/
5630 static int
5631 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5632 {
5633         int error;
5634
5635         /* Startup the kernel thread for this host adapter. */
5636         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5637                                           "lpfc_worker_%d", phba->brd_no);
5638         if (IS_ERR(phba->worker_thread)) {
5639                 error = PTR_ERR(phba->worker_thread);
5640                 return error;
5641         }
5642
5643         return 0;
5644 }
5645
5646 /**
5647  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5648  * @phba: pointer to lpfc hba data structure.
5649  *
5650  * This routine is invoked to unset the driver internal resources set up after
5651  * the device specific resource setup for supporting the HBA device it
5652  * attached to.
5653  **/
5654 static void
5655 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5656 {
5657         /* Stop kernel worker thread */
5658         kthread_stop(phba->worker_thread);
5659 }
5660
5661 /**
5662  * lpfc_free_iocb_list - Free iocb list.
5663  * @phba: pointer to lpfc hba data structure.
5664  *
5665  * This routine is invoked to free the driver's IOCB list and memory.
5666  **/
5667 static void
5668 lpfc_free_iocb_list(struct lpfc_hba *phba)
5669 {
5670         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5671
5672         spin_lock_irq(&phba->hbalock);
5673         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5674                                  &phba->lpfc_iocb_list, list) {
5675                 list_del(&iocbq_entry->list);
5676                 kfree(iocbq_entry);
5677                 phba->total_iocbq_bufs--;
5678         }
5679         spin_unlock_irq(&phba->hbalock);
5680
5681         return;
5682 }
5683
5684 /**
5685  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5686  * @phba: pointer to lpfc hba data structure.
5687  *
5688  * This routine is invoked to allocate and initizlize the driver's IOCB
5689  * list and set up the IOCB tag array accordingly.
5690  *
5691  * Return codes
5692  *      0 - successful
5693  *      other values - error
5694  **/
5695 static int
5696 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5697 {
5698         struct lpfc_iocbq *iocbq_entry = NULL;
5699         uint16_t iotag;
5700         int i;
5701
5702         /* Initialize and populate the iocb list per host.  */
5703         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5704         for (i = 0; i < iocb_count; i++) {
5705                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5706                 if (iocbq_entry == NULL) {
5707                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5708                                 "expected %d count. Unloading driver.\n",
5709                                 __func__, i, LPFC_IOCB_LIST_CNT);
5710                         goto out_free_iocbq;
5711                 }
5712
5713                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5714                 if (iotag == 0) {
5715                         kfree(iocbq_entry);
5716                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5717                                 "Unloading driver.\n", __func__);
5718                         goto out_free_iocbq;
5719                 }
5720                 iocbq_entry->sli4_lxritag = NO_XRI;
5721                 iocbq_entry->sli4_xritag = NO_XRI;
5722
5723                 spin_lock_irq(&phba->hbalock);
5724                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5725                 phba->total_iocbq_bufs++;
5726                 spin_unlock_irq(&phba->hbalock);
5727         }
5728
5729         return 0;
5730
5731 out_free_iocbq:
5732         lpfc_free_iocb_list(phba);
5733
5734         return -ENOMEM;
5735 }
5736
5737 /**
5738  * lpfc_free_sgl_list - Free a given sgl list.
5739  * @phba: pointer to lpfc hba data structure.
5740  * @sglq_list: pointer to the head of sgl list.
5741  *
5742  * This routine is invoked to free a give sgl list and memory.
5743  **/
5744 void
5745 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5746 {
5747         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5748
5749         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5750                 list_del(&sglq_entry->list);
5751                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5752                 kfree(sglq_entry);
5753         }
5754 }
5755
5756 /**
5757  * lpfc_free_els_sgl_list - Free els sgl list.
5758  * @phba: pointer to lpfc hba data structure.
5759  *
5760  * This routine is invoked to free the driver's els sgl list and memory.
5761  **/
5762 static void
5763 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5764 {
5765         LIST_HEAD(sglq_list);
5766         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5767
5768         /* Retrieve all els sgls from driver list */
5769         spin_lock_irq(&phba->hbalock);
5770         spin_lock(&pring->ring_lock);
5771         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5772         spin_unlock(&pring->ring_lock);
5773         spin_unlock_irq(&phba->hbalock);
5774
5775         /* Now free the sgl list */
5776         lpfc_free_sgl_list(phba, &sglq_list);
5777 }
5778
5779 /**
5780  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5781  * @phba: pointer to lpfc hba data structure.
5782  *
5783  * This routine is invoked to allocate the driver's active sgl memory.
5784  * This array will hold the sglq_entry's for active IOs.
5785  **/
5786 static int
5787 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5788 {
5789         int size;
5790         size = sizeof(struct lpfc_sglq *);
5791         size *= phba->sli4_hba.max_cfg_param.max_xri;
5792
5793         phba->sli4_hba.lpfc_sglq_active_list =
5794                 kzalloc(size, GFP_KERNEL);
5795         if (!phba->sli4_hba.lpfc_sglq_active_list)
5796                 return -ENOMEM;
5797         return 0;
5798 }
5799
5800 /**
5801  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5802  * @phba: pointer to lpfc hba data structure.
5803  *
5804  * This routine is invoked to walk through the array of active sglq entries
5805  * and free all of the resources.
5806  * This is just a place holder for now.
5807  **/
5808 static void
5809 lpfc_free_active_sgl(struct lpfc_hba *phba)
5810 {
5811         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5812 }
5813
5814 /**
5815  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5816  * @phba: pointer to lpfc hba data structure.
5817  *
5818  * This routine is invoked to allocate and initizlize the driver's sgl
5819  * list and set up the sgl xritag tag array accordingly.
5820  *
5821  **/
5822 static void
5823 lpfc_init_sgl_list(struct lpfc_hba *phba)
5824 {
5825         /* Initialize and populate the sglq list per host/VF. */
5826         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5827         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5828
5829         /* els xri-sgl book keeping */
5830         phba->sli4_hba.els_xri_cnt = 0;
5831
5832         /* scsi xri-buffer book keeping */
5833         phba->sli4_hba.scsi_xri_cnt = 0;
5834 }
5835
5836 /**
5837  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5838  * @phba: pointer to lpfc hba data structure.
5839  *
5840  * This routine is invoked to post rpi header templates to the
5841  * port for those SLI4 ports that do not support extents.  This routine
5842  * posts a PAGE_SIZE memory region to the port to hold up to
5843  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5844  * and should be called only when interrupts are disabled.
5845  *
5846  * Return codes
5847  *      0 - successful
5848  *      -ERROR - otherwise.
5849  **/
5850 int
5851 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5852 {
5853         int rc = 0;
5854         struct lpfc_rpi_hdr *rpi_hdr;
5855
5856         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5857         if (!phba->sli4_hba.rpi_hdrs_in_use)
5858                 return rc;
5859         if (phba->sli4_hba.extents_in_use)
5860                 return -EIO;
5861
5862         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5863         if (!rpi_hdr) {
5864                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5865                                 "0391 Error during rpi post operation\n");
5866                 lpfc_sli4_remove_rpis(phba);
5867                 rc = -ENODEV;
5868         }
5869
5870         return rc;
5871 }
5872
5873 /**
5874  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5875  * @phba: pointer to lpfc hba data structure.
5876  *
5877  * This routine is invoked to allocate a single 4KB memory region to
5878  * support rpis and stores them in the phba.  This single region
5879  * provides support for up to 64 rpis.  The region is used globally
5880  * by the device.
5881  *
5882  * Returns:
5883  *   A valid rpi hdr on success.
5884  *   A NULL pointer on any failure.
5885  **/
5886 struct lpfc_rpi_hdr *
5887 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5888 {
5889         uint16_t rpi_limit, curr_rpi_range;
5890         struct lpfc_dmabuf *dmabuf;
5891         struct lpfc_rpi_hdr *rpi_hdr;
5892         uint32_t rpi_count;
5893
5894         /*
5895          * If the SLI4 port supports extents, posting the rpi header isn't
5896          * required.  Set the expected maximum count and let the actual value
5897          * get set when extents are fully allocated.
5898          */
5899         if (!phba->sli4_hba.rpi_hdrs_in_use)
5900                 return NULL;
5901         if (phba->sli4_hba.extents_in_use)
5902                 return NULL;
5903
5904         /* The limit on the logical index is just the max_rpi count. */
5905         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5906         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5907
5908         spin_lock_irq(&phba->hbalock);
5909         /*
5910          * Establish the starting RPI in this header block.  The starting
5911          * rpi is normalized to a zero base because the physical rpi is
5912          * port based.
5913          */
5914         curr_rpi_range = phba->sli4_hba.next_rpi;
5915         spin_unlock_irq(&phba->hbalock);
5916
5917         /*
5918          * The port has a limited number of rpis. The increment here
5919          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5920          * and to allow the full max_rpi range per port.
5921          */
5922         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5923                 rpi_count = rpi_limit - curr_rpi_range;
5924         else
5925                 rpi_count = LPFC_RPI_HDR_COUNT;
5926
5927         if (!rpi_count)
5928                 return NULL;
5929         /*
5930          * First allocate the protocol header region for the port.  The
5931          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5932          */
5933         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5934         if (!dmabuf)
5935                 return NULL;
5936
5937         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5938                                            LPFC_HDR_TEMPLATE_SIZE,
5939                                            &dmabuf->phys, GFP_KERNEL);
5940         if (!dmabuf->virt) {
5941                 rpi_hdr = NULL;
5942                 goto err_free_dmabuf;
5943         }
5944
5945         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5946                 rpi_hdr = NULL;
5947                 goto err_free_coherent;
5948         }
5949
5950         /* Save the rpi header data for cleanup later. */
5951         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5952         if (!rpi_hdr)
5953                 goto err_free_coherent;
5954
5955         rpi_hdr->dmabuf = dmabuf;
5956         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5957         rpi_hdr->page_count = 1;
5958         spin_lock_irq(&phba->hbalock);
5959
5960         /* The rpi_hdr stores the logical index only. */
5961         rpi_hdr->start_rpi = curr_rpi_range;
5962         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5963
5964         /*
5965          * The next_rpi stores the next logical module-64 rpi value used
5966          * to post physical rpis in subsequent rpi postings.
5967          */
5968         phba->sli4_hba.next_rpi += rpi_count;
5969         spin_unlock_irq(&phba->hbalock);
5970         return rpi_hdr;
5971
5972  err_free_coherent:
5973         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5974                           dmabuf->virt, dmabuf->phys);
5975  err_free_dmabuf:
5976         kfree(dmabuf);
5977         return NULL;
5978 }
5979
5980 /**
5981  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5982  * @phba: pointer to lpfc hba data structure.
5983  *
5984  * This routine is invoked to remove all memory resources allocated
5985  * to support rpis for SLI4 ports not supporting extents. This routine
5986  * presumes the caller has released all rpis consumed by fabric or port
5987  * logins and is prepared to have the header pages removed.
5988  **/
5989 void
5990 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5991 {
5992         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5993
5994         if (!phba->sli4_hba.rpi_hdrs_in_use)
5995                 goto exit;
5996
5997         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5998                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5999                 list_del(&rpi_hdr->list);
6000                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6001                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6002                 kfree(rpi_hdr->dmabuf);
6003                 kfree(rpi_hdr);
6004         }
6005  exit:
6006         /* There are no rpis available to the port now. */
6007         phba->sli4_hba.next_rpi = 0;
6008 }
6009
6010 /**
6011  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6012  * @pdev: pointer to pci device data structure.
6013  *
6014  * This routine is invoked to allocate the driver hba data structure for an
6015  * HBA device. If the allocation is successful, the phba reference to the
6016  * PCI device data structure is set.
6017  *
6018  * Return codes
6019  *      pointer to @phba - successful
6020  *      NULL - error
6021  **/
6022 static struct lpfc_hba *
6023 lpfc_hba_alloc(struct pci_dev *pdev)
6024 {
6025         struct lpfc_hba *phba;
6026
6027         /* Allocate memory for HBA structure */
6028         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6029         if (!phba) {
6030                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6031                 return NULL;
6032         }
6033
6034         /* Set reference to PCI device in HBA structure */
6035         phba->pcidev = pdev;
6036
6037         /* Assign an unused board number */
6038         phba->brd_no = lpfc_get_instance();
6039         if (phba->brd_no < 0) {
6040                 kfree(phba);
6041                 return NULL;
6042         }
6043
6044         spin_lock_init(&phba->ct_ev_lock);
6045         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6046
6047         return phba;
6048 }
6049
6050 /**
6051  * lpfc_hba_free - Free driver hba data structure with a device.
6052  * @phba: pointer to lpfc hba data structure.
6053  *
6054  * This routine is invoked to free the driver hba data structure with an
6055  * HBA device.
6056  **/
6057 static void
6058 lpfc_hba_free(struct lpfc_hba *phba)
6059 {
6060         /* Release the driver assigned board number */
6061         idr_remove(&lpfc_hba_index, phba->brd_no);
6062
6063         /* Free memory allocated with sli rings */
6064         kfree(phba->sli.ring);
6065         phba->sli.ring = NULL;
6066
6067         kfree(phba);
6068         return;
6069 }
6070
6071 /**
6072  * lpfc_create_shost - Create hba physical port with associated scsi host.
6073  * @phba: pointer to lpfc hba data structure.
6074  *
6075  * This routine is invoked to create HBA physical port and associate a SCSI
6076  * host with it.
6077  *
6078  * Return codes
6079  *      0 - successful
6080  *      other values - error
6081  **/
6082 static int
6083 lpfc_create_shost(struct lpfc_hba *phba)
6084 {
6085         struct lpfc_vport *vport;
6086         struct Scsi_Host  *shost;
6087
6088         /* Initialize HBA FC structure */
6089         phba->fc_edtov = FF_DEF_EDTOV;
6090         phba->fc_ratov = FF_DEF_RATOV;
6091         phba->fc_altov = FF_DEF_ALTOV;
6092         phba->fc_arbtov = FF_DEF_ARBTOV;
6093
6094         atomic_set(&phba->sdev_cnt, 0);
6095         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6096         if (!vport)
6097                 return -ENODEV;
6098
6099         shost = lpfc_shost_from_vport(vport);
6100         phba->pport = vport;
6101         lpfc_debugfs_initialize(vport);
6102         /* Put reference to SCSI host to driver's device private data */
6103         pci_set_drvdata(phba->pcidev, shost);
6104
6105         return 0;
6106 }
6107
6108 /**
6109  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6110  * @phba: pointer to lpfc hba data structure.
6111  *
6112  * This routine is invoked to destroy HBA physical port and the associated
6113  * SCSI host.
6114  **/
6115 static void
6116 lpfc_destroy_shost(struct lpfc_hba *phba)
6117 {
6118         struct lpfc_vport *vport = phba->pport;
6119
6120         /* Destroy physical port that associated with the SCSI host */
6121         destroy_port(vport);
6122
6123         return;
6124 }
6125
6126 /**
6127  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6128  * @phba: pointer to lpfc hba data structure.
6129  * @shost: the shost to be used to detect Block guard settings.
6130  *
6131  * This routine sets up the local Block guard protocol settings for @shost.
6132  * This routine also allocates memory for debugging bg buffers.
6133  **/
6134 static void
6135 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6136 {
6137         uint32_t old_mask;
6138         uint32_t old_guard;
6139
6140         int pagecnt = 10;
6141         if (lpfc_prot_mask && lpfc_prot_guard) {
6142                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6143                                 "1478 Registering BlockGuard with the "
6144                                 "SCSI layer\n");
6145
6146                 old_mask = lpfc_prot_mask;
6147                 old_guard = lpfc_prot_guard;
6148
6149                 /* Only allow supported values */
6150                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6151                         SHOST_DIX_TYPE0_PROTECTION |
6152                         SHOST_DIX_TYPE1_PROTECTION);
6153                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6154
6155                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6156                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6157                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6158
6159                 if (lpfc_prot_mask && lpfc_prot_guard) {
6160                         if ((old_mask != lpfc_prot_mask) ||
6161                                 (old_guard != lpfc_prot_guard))
6162                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6163                                         "1475 Registering BlockGuard with the "
6164                                         "SCSI layer: mask %d  guard %d\n",
6165                                         lpfc_prot_mask, lpfc_prot_guard);
6166
6167                         scsi_host_set_prot(shost, lpfc_prot_mask);
6168                         scsi_host_set_guard(shost, lpfc_prot_guard);
6169                 } else
6170                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6171                                 "1479 Not Registering BlockGuard with the SCSI "
6172                                 "layer, Bad protection parameters: %d %d\n",
6173                                 old_mask, old_guard);
6174         }
6175
6176         if (!_dump_buf_data) {
6177                 while (pagecnt) {
6178                         spin_lock_init(&_dump_buf_lock);
6179                         _dump_buf_data =
6180                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6181                         if (_dump_buf_data) {
6182                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6183                                         "9043 BLKGRD: allocated %d pages for "
6184                                        "_dump_buf_data at 0x%p\n",
6185                                        (1 << pagecnt), _dump_buf_data);
6186                                 _dump_buf_data_order = pagecnt;
6187                                 memset(_dump_buf_data, 0,
6188                                        ((1 << PAGE_SHIFT) << pagecnt));
6189                                 break;
6190                         } else
6191                                 --pagecnt;
6192                 }
6193                 if (!_dump_buf_data_order)
6194                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6195                                 "9044 BLKGRD: ERROR unable to allocate "
6196                                "memory for hexdump\n");
6197         } else
6198                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6199                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6200                        "\n", _dump_buf_data);
6201         if (!_dump_buf_dif) {
6202                 while (pagecnt) {
6203                         _dump_buf_dif =
6204                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6205                         if (_dump_buf_dif) {
6206                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6207                                         "9046 BLKGRD: allocated %d pages for "
6208                                        "_dump_buf_dif at 0x%p\n",
6209                                        (1 << pagecnt), _dump_buf_dif);
6210                                 _dump_buf_dif_order = pagecnt;
6211                                 memset(_dump_buf_dif, 0,
6212                                        ((1 << PAGE_SHIFT) << pagecnt));
6213                                 break;
6214                         } else
6215                                 --pagecnt;
6216                 }
6217                 if (!_dump_buf_dif_order)
6218                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6219                         "9047 BLKGRD: ERROR unable to allocate "
6220                                "memory for hexdump\n");
6221         } else
6222                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6223                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6224                        _dump_buf_dif);
6225 }
6226
6227 /**
6228  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6229  * @phba: pointer to lpfc hba data structure.
6230  *
6231  * This routine is invoked to perform all the necessary post initialization
6232  * setup for the device.
6233  **/
6234 static void
6235 lpfc_post_init_setup(struct lpfc_hba *phba)
6236 {
6237         struct Scsi_Host  *shost;
6238         struct lpfc_adapter_event_header adapter_event;
6239
6240         /* Get the default values for Model Name and Description */
6241         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6242
6243         /*
6244          * hba setup may have changed the hba_queue_depth so we need to
6245          * adjust the value of can_queue.
6246          */
6247         shost = pci_get_drvdata(phba->pcidev);
6248         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6249         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6250                 lpfc_setup_bg(phba, shost);
6251
6252         lpfc_host_attrib_init(shost);
6253
6254         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6255                 spin_lock_irq(shost->host_lock);
6256                 lpfc_poll_start_timer(phba);
6257                 spin_unlock_irq(shost->host_lock);
6258         }
6259
6260         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6261                         "0428 Perform SCSI scan\n");
6262         /* Send board arrival event to upper layer */
6263         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6264         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6265         fc_host_post_vendor_event(shost, fc_get_event_number(),
6266                                   sizeof(adapter_event),
6267                                   (char *) &adapter_event,
6268                                   LPFC_NL_VENDOR_ID);
6269         return;
6270 }
6271
6272 /**
6273  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6274  * @phba: pointer to lpfc hba data structure.
6275  *
6276  * This routine is invoked to set up the PCI device memory space for device
6277  * with SLI-3 interface spec.
6278  *
6279  * Return codes
6280  *      0 - successful
6281  *      other values - error
6282  **/
6283 static int
6284 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6285 {
6286         struct pci_dev *pdev;
6287         unsigned long bar0map_len, bar2map_len;
6288         int i, hbq_count;
6289         void *ptr;
6290         int error = -ENODEV;
6291
6292         /* Obtain PCI device reference */
6293         if (!phba->pcidev)
6294                 return error;
6295         else
6296                 pdev = phba->pcidev;
6297
6298         /* Set the device DMA mask size */
6299         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6300          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6301                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6302                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6303                         return error;
6304                 }
6305         }
6306
6307         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6308          * required by each mapping.
6309          */
6310         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6311         bar0map_len = pci_resource_len(pdev, 0);
6312
6313         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6314         bar2map_len = pci_resource_len(pdev, 2);
6315
6316         /* Map HBA SLIM to a kernel virtual address. */
6317         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6318         if (!phba->slim_memmap_p) {
6319                 dev_printk(KERN_ERR, &pdev->dev,
6320                            "ioremap failed for SLIM memory.\n");
6321                 goto out;
6322         }
6323
6324         /* Map HBA Control Registers to a kernel virtual address. */
6325         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6326         if (!phba->ctrl_regs_memmap_p) {
6327                 dev_printk(KERN_ERR, &pdev->dev,
6328                            "ioremap failed for HBA control registers.\n");
6329                 goto out_iounmap_slim;
6330         }
6331
6332         /* Allocate memory for SLI-2 structures */
6333         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6334                                                 &phba->slim2p.phys, GFP_KERNEL);
6335         if (!phba->slim2p.virt)
6336                 goto out_iounmap;
6337
6338         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6339         phba->mbox_ext = (phba->slim2p.virt +
6340                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6341         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6342         phba->IOCBs = (phba->slim2p.virt +
6343                        offsetof(struct lpfc_sli2_slim, IOCBs));
6344
6345         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6346                                                  lpfc_sli_hbq_size(),
6347                                                  &phba->hbqslimp.phys,
6348                                                  GFP_KERNEL);
6349         if (!phba->hbqslimp.virt)
6350                 goto out_free_slim;
6351
6352         hbq_count = lpfc_sli_hbq_count();
6353         ptr = phba->hbqslimp.virt;
6354         for (i = 0; i < hbq_count; ++i) {
6355                 phba->hbqs[i].hbq_virt = ptr;
6356                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6357                 ptr += (lpfc_hbq_defs[i]->entry_count *
6358                         sizeof(struct lpfc_hbq_entry));
6359         }
6360         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6361         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6362
6363         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6364
6365         INIT_LIST_HEAD(&phba->rb_pend_list);
6366
6367         phba->MBslimaddr = phba->slim_memmap_p;
6368         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6369         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6370         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6371         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6372
6373         return 0;
6374
6375 out_free_slim:
6376         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6377                           phba->slim2p.virt, phba->slim2p.phys);
6378 out_iounmap:
6379         iounmap(phba->ctrl_regs_memmap_p);
6380 out_iounmap_slim:
6381         iounmap(phba->slim_memmap_p);
6382 out:
6383         return error;
6384 }
6385
6386 /**
6387  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6388  * @phba: pointer to lpfc hba data structure.
6389  *
6390  * This routine is invoked to unset the PCI device memory space for device
6391  * with SLI-3 interface spec.
6392  **/
6393 static void
6394 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6395 {
6396         struct pci_dev *pdev;
6397
6398         /* Obtain PCI device reference */
6399         if (!phba->pcidev)
6400                 return;
6401         else
6402                 pdev = phba->pcidev;
6403
6404         /* Free coherent DMA memory allocated */
6405         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6406                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6407         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6408                           phba->slim2p.virt, phba->slim2p.phys);
6409
6410         /* I/O memory unmap */
6411         iounmap(phba->ctrl_regs_memmap_p);
6412         iounmap(phba->slim_memmap_p);
6413
6414         return;
6415 }
6416
6417 /**
6418  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6419  * @phba: pointer to lpfc hba data structure.
6420  *
6421  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6422  * done and check status.
6423  *
6424  * Return 0 if successful, otherwise -ENODEV.
6425  **/
6426 int
6427 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6428 {
6429         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6430         struct lpfc_register reg_data;
6431         int i, port_error = 0;
6432         uint32_t if_type;
6433
6434         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6435         memset(&reg_data, 0, sizeof(reg_data));
6436         if (!phba->sli4_hba.PSMPHRregaddr)
6437                 return -ENODEV;
6438
6439         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6440         for (i = 0; i < 3000; i++) {
6441                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6442                         &portsmphr_reg.word0) ||
6443                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6444                         /* Port has a fatal POST error, break out */
6445                         port_error = -ENODEV;
6446                         break;
6447                 }
6448                 if (LPFC_POST_STAGE_PORT_READY ==
6449                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6450                         break;
6451                 msleep(10);
6452         }
6453
6454         /*
6455          * If there was a port error during POST, then don't proceed with
6456          * other register reads as the data may not be valid.  Just exit.
6457          */
6458         if (port_error) {
6459                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6460                         "1408 Port Failed POST - portsmphr=0x%x, "
6461                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6462                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6463                         portsmphr_reg.word0,
6464                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6465                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6466                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6467                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6468                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6469                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6470                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6471                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6472         } else {
6473                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6474                                 "2534 Device Info: SLIFamily=0x%x, "
6475                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6476                                 "SLIHint_2=0x%x, FT=0x%x\n",
6477                                 bf_get(lpfc_sli_intf_sli_family,
6478                                        &phba->sli4_hba.sli_intf),
6479                                 bf_get(lpfc_sli_intf_slirev,
6480                                        &phba->sli4_hba.sli_intf),
6481                                 bf_get(lpfc_sli_intf_if_type,
6482                                        &phba->sli4_hba.sli_intf),
6483                                 bf_get(lpfc_sli_intf_sli_hint1,
6484                                        &phba->sli4_hba.sli_intf),
6485                                 bf_get(lpfc_sli_intf_sli_hint2,
6486                                        &phba->sli4_hba.sli_intf),
6487                                 bf_get(lpfc_sli_intf_func_type,
6488                                        &phba->sli4_hba.sli_intf));
6489                 /*
6490                  * Check for other Port errors during the initialization
6491                  * process.  Fail the load if the port did not come up
6492                  * correctly.
6493                  */
6494                 if_type = bf_get(lpfc_sli_intf_if_type,
6495                                  &phba->sli4_hba.sli_intf);
6496                 switch (if_type) {
6497                 case LPFC_SLI_INTF_IF_TYPE_0:
6498                         phba->sli4_hba.ue_mask_lo =
6499                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6500                         phba->sli4_hba.ue_mask_hi =
6501                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6502                         uerrlo_reg.word0 =
6503                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6504                         uerrhi_reg.word0 =
6505                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6506                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6507                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6508                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6509                                                 "1422 Unrecoverable Error "
6510                                                 "Detected during POST "
6511                                                 "uerr_lo_reg=0x%x, "
6512                                                 "uerr_hi_reg=0x%x, "
6513                                                 "ue_mask_lo_reg=0x%x, "
6514                                                 "ue_mask_hi_reg=0x%x\n",
6515                                                 uerrlo_reg.word0,
6516                                                 uerrhi_reg.word0,
6517                                                 phba->sli4_hba.ue_mask_lo,
6518                                                 phba->sli4_hba.ue_mask_hi);
6519                                 port_error = -ENODEV;
6520                         }
6521                         break;
6522                 case LPFC_SLI_INTF_IF_TYPE_2:
6523                         /* Final checks.  The port status should be clean. */
6524                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6525                                 &reg_data.word0) ||
6526                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6527                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6528                                 phba->work_status[0] =
6529                                         readl(phba->sli4_hba.u.if_type2.
6530                                               ERR1regaddr);
6531                                 phba->work_status[1] =
6532                                         readl(phba->sli4_hba.u.if_type2.
6533                                               ERR2regaddr);
6534                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6535                                         "2888 Unrecoverable port error "
6536                                         "following POST: port status reg "
6537                                         "0x%x, port_smphr reg 0x%x, "
6538                                         "error 1=0x%x, error 2=0x%x\n",
6539                                         reg_data.word0,
6540                                         portsmphr_reg.word0,
6541                                         phba->work_status[0],
6542                                         phba->work_status[1]);
6543                                 port_error = -ENODEV;
6544                         }
6545                         break;
6546                 case LPFC_SLI_INTF_IF_TYPE_1:
6547                 default:
6548                         break;
6549                 }
6550         }
6551         return port_error;
6552 }
6553
6554 /**
6555  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6556  * @phba: pointer to lpfc hba data structure.
6557  * @if_type:  The SLI4 interface type getting configured.
6558  *
6559  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6560  * memory map.
6561  **/
6562 static void
6563 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6564 {
6565         switch (if_type) {
6566         case LPFC_SLI_INTF_IF_TYPE_0:
6567                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6568                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6569                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6570                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6571                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6572                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6573                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6574                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6575                 phba->sli4_hba.SLIINTFregaddr =
6576                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6577                 break;
6578         case LPFC_SLI_INTF_IF_TYPE_2:
6579                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6580                         phba->sli4_hba.conf_regs_memmap_p +
6581                                                 LPFC_CTL_PORT_ER1_OFFSET;
6582                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6583                         phba->sli4_hba.conf_regs_memmap_p +
6584                                                 LPFC_CTL_PORT_ER2_OFFSET;
6585                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6586                         phba->sli4_hba.conf_regs_memmap_p +
6587                                                 LPFC_CTL_PORT_CTL_OFFSET;
6588                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6589                         phba->sli4_hba.conf_regs_memmap_p +
6590                                                 LPFC_CTL_PORT_STA_OFFSET;
6591                 phba->sli4_hba.SLIINTFregaddr =
6592                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6593                 phba->sli4_hba.PSMPHRregaddr =
6594                         phba->sli4_hba.conf_regs_memmap_p +
6595                                                 LPFC_CTL_PORT_SEM_OFFSET;
6596                 phba->sli4_hba.RQDBregaddr =
6597                         phba->sli4_hba.conf_regs_memmap_p +
6598                                                 LPFC_ULP0_RQ_DOORBELL;
6599                 phba->sli4_hba.WQDBregaddr =
6600                         phba->sli4_hba.conf_regs_memmap_p +
6601                                                 LPFC_ULP0_WQ_DOORBELL;
6602                 phba->sli4_hba.EQCQDBregaddr =
6603                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6604                 phba->sli4_hba.MQDBregaddr =
6605                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6606                 phba->sli4_hba.BMBXregaddr =
6607                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6608                 break;
6609         case LPFC_SLI_INTF_IF_TYPE_1:
6610         default:
6611                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6612                            "FATAL - unsupported SLI4 interface type - %d\n",
6613                            if_type);
6614                 break;
6615         }
6616 }
6617
6618 /**
6619  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6620  * @phba: pointer to lpfc hba data structure.
6621  *
6622  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6623  * memory map.
6624  **/
6625 static void
6626 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6627 {
6628         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6629                 LPFC_SLIPORT_IF0_SMPHR;
6630         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6631                 LPFC_HST_ISR0;
6632         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6633                 LPFC_HST_IMR0;
6634         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6635                 LPFC_HST_ISCR0;
6636 }
6637
6638 /**
6639  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6640  * @phba: pointer to lpfc hba data structure.
6641  * @vf: virtual function number
6642  *
6643  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6644  * based on the given viftual function number, @vf.
6645  *
6646  * Return 0 if successful, otherwise -ENODEV.
6647  **/
6648 static int
6649 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6650 {
6651         if (vf > LPFC_VIR_FUNC_MAX)
6652                 return -ENODEV;
6653
6654         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6655                                 vf * LPFC_VFR_PAGE_SIZE +
6656                                         LPFC_ULP0_RQ_DOORBELL);
6657         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6658                                 vf * LPFC_VFR_PAGE_SIZE +
6659                                         LPFC_ULP0_WQ_DOORBELL);
6660         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6661                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6662         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6663                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6664         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6665                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6666         return 0;
6667 }
6668
6669 /**
6670  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6671  * @phba: pointer to lpfc hba data structure.
6672  *
6673  * This routine is invoked to create the bootstrap mailbox
6674  * region consistent with the SLI-4 interface spec.  This
6675  * routine allocates all memory necessary to communicate
6676  * mailbox commands to the port and sets up all alignment
6677  * needs.  No locks are expected to be held when calling
6678  * this routine.
6679  *
6680  * Return codes
6681  *      0 - successful
6682  *      -ENOMEM - could not allocated memory.
6683  **/
6684 static int
6685 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6686 {
6687         uint32_t bmbx_size;
6688         struct lpfc_dmabuf *dmabuf;
6689         struct dma_address *dma_address;
6690         uint32_t pa_addr;
6691         uint64_t phys_addr;
6692
6693         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6694         if (!dmabuf)
6695                 return -ENOMEM;
6696
6697         /*
6698          * The bootstrap mailbox region is comprised of 2 parts
6699          * plus an alignment restriction of 16 bytes.
6700          */
6701         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6702         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6703                                            &dmabuf->phys, GFP_KERNEL);
6704         if (!dmabuf->virt) {
6705                 kfree(dmabuf);
6706                 return -ENOMEM;
6707         }
6708
6709         /*
6710          * Initialize the bootstrap mailbox pointers now so that the register
6711          * operations are simple later.  The mailbox dma address is required
6712          * to be 16-byte aligned.  Also align the virtual memory as each
6713          * maibox is copied into the bmbx mailbox region before issuing the
6714          * command to the port.
6715          */
6716         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6717         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6718
6719         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6720                                               LPFC_ALIGN_16_BYTE);
6721         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6722                                               LPFC_ALIGN_16_BYTE);
6723
6724         /*
6725          * Set the high and low physical addresses now.  The SLI4 alignment
6726          * requirement is 16 bytes and the mailbox is posted to the port
6727          * as two 30-bit addresses.  The other data is a bit marking whether
6728          * the 30-bit address is the high or low address.
6729          * Upcast bmbx aphys to 64bits so shift instruction compiles
6730          * clean on 32 bit machines.
6731          */
6732         dma_address = &phba->sli4_hba.bmbx.dma_address;
6733         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6734         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6735         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6736                                            LPFC_BMBX_BIT1_ADDR_HI);
6737
6738         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6739         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6740                                            LPFC_BMBX_BIT1_ADDR_LO);
6741         return 0;
6742 }
6743
6744 /**
6745  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6746  * @phba: pointer to lpfc hba data structure.
6747  *
6748  * This routine is invoked to teardown the bootstrap mailbox
6749  * region and release all host resources. This routine requires
6750  * the caller to ensure all mailbox commands recovered, no
6751  * additional mailbox comands are sent, and interrupts are disabled
6752  * before calling this routine.
6753  *
6754  **/
6755 static void
6756 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6757 {
6758         dma_free_coherent(&phba->pcidev->dev,
6759                           phba->sli4_hba.bmbx.bmbx_size,
6760                           phba->sli4_hba.bmbx.dmabuf->virt,
6761                           phba->sli4_hba.bmbx.dmabuf->phys);
6762
6763         kfree(phba->sli4_hba.bmbx.dmabuf);
6764         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6765 }
6766
6767 /**
6768  * lpfc_sli4_read_config - Get the config parameters.
6769  * @phba: pointer to lpfc hba data structure.
6770  *
6771  * This routine is invoked to read the configuration parameters from the HBA.
6772  * The configuration parameters are used to set the base and maximum values
6773  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6774  * allocation for the port.
6775  *
6776  * Return codes
6777  *      0 - successful
6778  *      -ENOMEM - No available memory
6779  *      -EIO - The mailbox failed to complete successfully.
6780  **/
6781 int
6782 lpfc_sli4_read_config(struct lpfc_hba *phba)
6783 {
6784         LPFC_MBOXQ_t *pmb;
6785         struct lpfc_mbx_read_config *rd_config;
6786         union  lpfc_sli4_cfg_shdr *shdr;
6787         uint32_t shdr_status, shdr_add_status;
6788         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6789         struct lpfc_rsrc_desc_fcfcoe *desc;
6790         char *pdesc_0;
6791         int length, i, rc = 0, rc2;
6792
6793         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6794         if (!pmb) {
6795                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6796                                 "2011 Unable to allocate memory for issuing "
6797                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6798                 return -ENOMEM;
6799         }
6800
6801         lpfc_read_config(phba, pmb);
6802
6803         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6804         if (rc != MBX_SUCCESS) {
6805                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6806                         "2012 Mailbox failed , mbxCmd x%x "
6807                         "READ_CONFIG, mbxStatus x%x\n",
6808                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6809                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6810                 rc = -EIO;
6811         } else {
6812                 rd_config = &pmb->u.mqe.un.rd_config;
6813                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6814                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6815                         phba->sli4_hba.lnk_info.lnk_tp =
6816                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6817                         phba->sli4_hba.lnk_info.lnk_no =
6818                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6819                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6820                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6821                                         phba->sli4_hba.lnk_info.lnk_tp,
6822                                         phba->sli4_hba.lnk_info.lnk_no);
6823                 } else
6824                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6825                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6826                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6827                 phba->sli4_hba.extents_in_use =
6828                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6829                 phba->sli4_hba.max_cfg_param.max_xri =
6830                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6831                 phba->sli4_hba.max_cfg_param.xri_base =
6832                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6833                 phba->sli4_hba.max_cfg_param.max_vpi =
6834                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6835                 phba->sli4_hba.max_cfg_param.vpi_base =
6836                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6837                 phba->sli4_hba.max_cfg_param.max_rpi =
6838                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6839                 phba->sli4_hba.max_cfg_param.rpi_base =
6840                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6841                 phba->sli4_hba.max_cfg_param.max_vfi =
6842                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6843                 phba->sli4_hba.max_cfg_param.vfi_base =
6844                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6845                 phba->sli4_hba.max_cfg_param.max_fcfi =
6846                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6847                 phba->sli4_hba.max_cfg_param.max_eq =
6848                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6849                 phba->sli4_hba.max_cfg_param.max_rq =
6850                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6851                 phba->sli4_hba.max_cfg_param.max_wq =
6852                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6853                 phba->sli4_hba.max_cfg_param.max_cq =
6854                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6855                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6856                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6857                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6858                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6859                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6860                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6861                 phba->max_vports = phba->max_vpi;
6862                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6863                                 "2003 cfg params Extents? %d "
6864                                 "XRI(B:%d M:%d), "
6865                                 "VPI(B:%d M:%d) "
6866                                 "VFI(B:%d M:%d) "
6867                                 "RPI(B:%d M:%d) "
6868                                 "FCFI(Count:%d)\n",
6869                                 phba->sli4_hba.extents_in_use,
6870                                 phba->sli4_hba.max_cfg_param.xri_base,
6871                                 phba->sli4_hba.max_cfg_param.max_xri,
6872                                 phba->sli4_hba.max_cfg_param.vpi_base,
6873                                 phba->sli4_hba.max_cfg_param.max_vpi,
6874                                 phba->sli4_hba.max_cfg_param.vfi_base,
6875                                 phba->sli4_hba.max_cfg_param.max_vfi,
6876                                 phba->sli4_hba.max_cfg_param.rpi_base,
6877                                 phba->sli4_hba.max_cfg_param.max_rpi,
6878                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6879         }
6880
6881         if (rc)
6882                 goto read_cfg_out;
6883
6884         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6885         length = phba->sli4_hba.max_cfg_param.max_xri -
6886                         lpfc_sli4_get_els_iocb_cnt(phba);
6887         if (phba->cfg_hba_queue_depth > length) {
6888                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6889                                 "3361 HBA queue depth changed from %d to %d\n",
6890                                 phba->cfg_hba_queue_depth, length);
6891                 phba->cfg_hba_queue_depth = length;
6892         }
6893
6894         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6895             LPFC_SLI_INTF_IF_TYPE_2)
6896                 goto read_cfg_out;
6897
6898         /* get the pf# and vf# for SLI4 if_type 2 port */
6899         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6900                   sizeof(struct lpfc_sli4_cfg_mhdr));
6901         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6902                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6903                          length, LPFC_SLI4_MBX_EMBED);
6904
6905         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6906         shdr = (union lpfc_sli4_cfg_shdr *)
6907                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6908         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6909         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6910         if (rc2 || shdr_status || shdr_add_status) {
6911                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6912                                 "3026 Mailbox failed , mbxCmd x%x "
6913                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6914                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6915                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6916                 goto read_cfg_out;
6917         }
6918
6919         /* search for fc_fcoe resrouce descriptor */
6920         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6921
6922         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6923         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6924         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6925         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6926                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6927         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6928                 goto read_cfg_out;
6929
6930         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6931                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6932                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6933                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6934                         phba->sli4_hba.iov.pf_number =
6935                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6936                         phba->sli4_hba.iov.vf_number =
6937                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6938                         break;
6939                 }
6940         }
6941
6942         if (i < LPFC_RSRC_DESC_MAX_NUM)
6943                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6944                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6945                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6946                                 phba->sli4_hba.iov.vf_number);
6947         else
6948                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6949                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6950                                 "Resrouce Descriptor:x%x\n",
6951                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6952
6953 read_cfg_out:
6954         mempool_free(pmb, phba->mbox_mem_pool);
6955         return rc;
6956 }
6957
6958 /**
6959  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6960  * @phba: pointer to lpfc hba data structure.
6961  *
6962  * This routine is invoked to setup the port-side endian order when
6963  * the port if_type is 0.  This routine has no function for other
6964  * if_types.
6965  *
6966  * Return codes
6967  *      0 - successful
6968  *      -ENOMEM - No available memory
6969  *      -EIO - The mailbox failed to complete successfully.
6970  **/
6971 static int
6972 lpfc_setup_endian_order(struct lpfc_hba *phba)
6973 {
6974         LPFC_MBOXQ_t *mboxq;
6975         uint32_t if_type, rc = 0;
6976         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6977                                       HOST_ENDIAN_HIGH_WORD1};
6978
6979         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6980         switch (if_type) {
6981         case LPFC_SLI_INTF_IF_TYPE_0:
6982                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6983                                                        GFP_KERNEL);
6984                 if (!mboxq) {
6985                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6986                                         "0492 Unable to allocate memory for "
6987                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6988                                         "command\n");
6989                         return -ENOMEM;
6990                 }
6991
6992                 /*
6993                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6994                  * two words to contain special data values and no other data.
6995                  */
6996                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6997                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6998                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6999                 if (rc != MBX_SUCCESS) {
7000                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7001                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7002                                         "failed with status x%x\n",
7003                                         rc);
7004                         rc = -EIO;
7005                 }
7006                 mempool_free(mboxq, phba->mbox_mem_pool);
7007                 break;
7008         case LPFC_SLI_INTF_IF_TYPE_2:
7009         case LPFC_SLI_INTF_IF_TYPE_1:
7010         default:
7011                 break;
7012         }
7013         return rc;
7014 }
7015
7016 /**
7017  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7018  * @phba: pointer to lpfc hba data structure.
7019  *
7020  * This routine is invoked to check the user settable queue counts for EQs and
7021  * CQs. after this routine is called the counts will be set to valid values that
7022  * adhere to the constraints of the system's interrupt vectors and the port's
7023  * queue resources.
7024  *
7025  * Return codes
7026  *      0 - successful
7027  *      -ENOMEM - No available memory
7028  **/
7029 static int
7030 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7031 {
7032         int cfg_fcp_io_channel;
7033         uint32_t cpu;
7034         uint32_t i = 0;
7035         int fof_vectors = phba->cfg_fof ? 1 : 0;
7036
7037         /*
7038          * Sanity check for configured queue parameters against the run-time
7039          * device parameters
7040          */
7041
7042         /* Sanity check on HBA EQ parameters */
7043         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7044
7045         /* It doesn't make sense to have more io channels then online CPUs */
7046         for_each_present_cpu(cpu) {
7047                 if (cpu_online(cpu))
7048                         i++;
7049         }
7050         phba->sli4_hba.num_online_cpu = i;
7051         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7052         phba->sli4_hba.curr_disp_cpu = 0;
7053
7054         if (i < cfg_fcp_io_channel) {
7055                 lpfc_printf_log(phba,
7056                                 KERN_ERR, LOG_INIT,
7057                                 "3188 Reducing IO channels to match number of "
7058                                 "online CPUs: from %d to %d\n",
7059                                 cfg_fcp_io_channel, i);
7060                 cfg_fcp_io_channel = i;
7061         }
7062
7063         if (cfg_fcp_io_channel + fof_vectors >
7064             phba->sli4_hba.max_cfg_param.max_eq) {
7065                 if (phba->sli4_hba.max_cfg_param.max_eq <
7066                     LPFC_FCP_IO_CHAN_MIN) {
7067                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7068                                         "2574 Not enough EQs (%d) from the "
7069                                         "pci function for supporting FCP "
7070                                         "EQs (%d)\n",
7071                                         phba->sli4_hba.max_cfg_param.max_eq,
7072                                         phba->cfg_fcp_io_channel);
7073                         goto out_error;
7074                 }
7075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7076                                 "2575 Reducing IO channels to match number of "
7077                                 "available EQs: from %d to %d\n",
7078                                 cfg_fcp_io_channel,
7079                                 phba->sli4_hba.max_cfg_param.max_eq);
7080                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7081                         fof_vectors;
7082         }
7083
7084         /* The actual number of FCP event queues adopted */
7085         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7086
7087         /* Get EQ depth from module parameter, fake the default for now */
7088         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7089         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7090
7091         /* Get CQ depth from module parameter, fake the default for now */
7092         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7093         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7094
7095         return 0;
7096 out_error:
7097         return -ENOMEM;
7098 }
7099
7100 /**
7101  * lpfc_sli4_queue_create - Create all the SLI4 queues
7102  * @phba: pointer to lpfc hba data structure.
7103  *
7104  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7105  * operation. For each SLI4 queue type, the parameters such as queue entry
7106  * count (queue depth) shall be taken from the module parameter. For now,
7107  * we just use some constant number as place holder.
7108  *
7109  * Return codes
7110  *      0 - successful
7111  *      -ENOMEM - No availble memory
7112  *      -EIO - The mailbox failed to complete successfully.
7113  **/
7114 int
7115 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7116 {
7117         struct lpfc_queue *qdesc;
7118         int idx;
7119
7120         /*
7121          * Create HBA Record arrays.
7122          */
7123         if (!phba->cfg_fcp_io_channel)
7124                 return -ERANGE;
7125
7126         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7127         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7128         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7129         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7130         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7131         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7132
7133         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7134                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7135         if (!phba->sli4_hba.hba_eq) {
7136                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7137                         "2576 Failed allocate memory for "
7138                         "fast-path EQ record array\n");
7139                 goto out_error;
7140         }
7141
7142         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7143                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7144         if (!phba->sli4_hba.fcp_cq) {
7145                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7146                                 "2577 Failed allocate memory for fast-path "
7147                                 "CQ record array\n");
7148                 goto out_error;
7149         }
7150
7151         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7152                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7153         if (!phba->sli4_hba.fcp_wq) {
7154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7155                                 "2578 Failed allocate memory for fast-path "
7156                                 "WQ record array\n");
7157                 goto out_error;
7158         }
7159
7160         /*
7161          * Since the first EQ can have multiple CQs associated with it,
7162          * this array is used to quickly see if we have a FCP fast-path
7163          * CQ match.
7164          */
7165         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7166                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7167         if (!phba->sli4_hba.fcp_cq_map) {
7168                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7169                                 "2545 Failed allocate memory for fast-path "
7170                                 "CQ map\n");
7171                 goto out_error;
7172         }
7173
7174         /*
7175          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7176          * how many EQs to create.
7177          */
7178         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7179
7180                 /* Create EQs */
7181                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7182                                               phba->sli4_hba.eq_ecount);
7183                 if (!qdesc) {
7184                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7185                                         "0497 Failed allocate EQ (%d)\n", idx);
7186                         goto out_error;
7187                 }
7188                 phba->sli4_hba.hba_eq[idx] = qdesc;
7189
7190                 /* Create Fast Path FCP CQs */
7191                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7192                                               phba->sli4_hba.cq_ecount);
7193                 if (!qdesc) {
7194                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7195                                         "0499 Failed allocate fast-path FCP "
7196                                         "CQ (%d)\n", idx);
7197                         goto out_error;
7198                 }
7199                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7200
7201                 /* Create Fast Path FCP WQs */
7202                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7203                                               phba->sli4_hba.wq_ecount);
7204                 if (!qdesc) {
7205                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7206                                         "0503 Failed allocate fast-path FCP "
7207                                         "WQ (%d)\n", idx);
7208                         goto out_error;
7209                 }
7210                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7211         }
7212
7213
7214         /*
7215          * Create Slow Path Completion Queues (CQs)
7216          */
7217
7218         /* Create slow-path Mailbox Command Complete Queue */
7219         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7220                                       phba->sli4_hba.cq_ecount);
7221         if (!qdesc) {
7222                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7223                                 "0500 Failed allocate slow-path mailbox CQ\n");
7224                 goto out_error;
7225         }
7226         phba->sli4_hba.mbx_cq = qdesc;
7227
7228         /* Create slow-path ELS Complete Queue */
7229         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7230                                       phba->sli4_hba.cq_ecount);
7231         if (!qdesc) {
7232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7233                                 "0501 Failed allocate slow-path ELS CQ\n");
7234                 goto out_error;
7235         }
7236         phba->sli4_hba.els_cq = qdesc;
7237
7238
7239         /*
7240          * Create Slow Path Work Queues (WQs)
7241          */
7242
7243         /* Create Mailbox Command Queue */
7244
7245         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7246                                       phba->sli4_hba.mq_ecount);
7247         if (!qdesc) {
7248                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7249                                 "0505 Failed allocate slow-path MQ\n");
7250                 goto out_error;
7251         }
7252         phba->sli4_hba.mbx_wq = qdesc;
7253
7254         /*
7255          * Create ELS Work Queues
7256          */
7257
7258         /* Create slow-path ELS Work Queue */
7259         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7260                                       phba->sli4_hba.wq_ecount);
7261         if (!qdesc) {
7262                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7263                                 "0504 Failed allocate slow-path ELS WQ\n");
7264                 goto out_error;
7265         }
7266         phba->sli4_hba.els_wq = qdesc;
7267
7268         /*
7269          * Create Receive Queue (RQ)
7270          */
7271
7272         /* Create Receive Queue for header */
7273         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7274                                       phba->sli4_hba.rq_ecount);
7275         if (!qdesc) {
7276                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7277                                 "0506 Failed allocate receive HRQ\n");
7278                 goto out_error;
7279         }
7280         phba->sli4_hba.hdr_rq = qdesc;
7281
7282         /* Create Receive Queue for data */
7283         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7284                                       phba->sli4_hba.rq_ecount);
7285         if (!qdesc) {
7286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7287                                 "0507 Failed allocate receive DRQ\n");
7288                 goto out_error;
7289         }
7290         phba->sli4_hba.dat_rq = qdesc;
7291
7292         /* Create the Queues needed for Flash Optimized Fabric operations */
7293         if (phba->cfg_fof)
7294                 lpfc_fof_queue_create(phba);
7295         return 0;
7296
7297 out_error:
7298         lpfc_sli4_queue_destroy(phba);
7299         return -ENOMEM;
7300 }
7301
7302 /**
7303  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7304  * @phba: pointer to lpfc hba data structure.
7305  *
7306  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7307  * operation.
7308  *
7309  * Return codes
7310  *      0 - successful
7311  *      -ENOMEM - No available memory
7312  *      -EIO - The mailbox failed to complete successfully.
7313  **/
7314 void
7315 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7316 {
7317         int idx;
7318
7319         if (phba->cfg_fof)
7320                 lpfc_fof_queue_destroy(phba);
7321
7322         if (phba->sli4_hba.hba_eq != NULL) {
7323                 /* Release HBA event queue */
7324                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7325                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7326                                 lpfc_sli4_queue_free(
7327                                         phba->sli4_hba.hba_eq[idx]);
7328                                 phba->sli4_hba.hba_eq[idx] = NULL;
7329                         }
7330                 }
7331                 kfree(phba->sli4_hba.hba_eq);
7332                 phba->sli4_hba.hba_eq = NULL;
7333         }
7334
7335         if (phba->sli4_hba.fcp_cq != NULL) {
7336                 /* Release FCP completion queue */
7337                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7338                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7339                                 lpfc_sli4_queue_free(
7340                                         phba->sli4_hba.fcp_cq[idx]);
7341                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7342                         }
7343                 }
7344                 kfree(phba->sli4_hba.fcp_cq);
7345                 phba->sli4_hba.fcp_cq = NULL;
7346         }
7347
7348         if (phba->sli4_hba.fcp_wq != NULL) {
7349                 /* Release FCP work queue */
7350                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7351                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7352                                 lpfc_sli4_queue_free(
7353                                         phba->sli4_hba.fcp_wq[idx]);
7354                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7355                         }
7356                 }
7357                 kfree(phba->sli4_hba.fcp_wq);
7358                 phba->sli4_hba.fcp_wq = NULL;
7359         }
7360
7361         /* Release FCP CQ mapping array */
7362         if (phba->sli4_hba.fcp_cq_map != NULL) {
7363                 kfree(phba->sli4_hba.fcp_cq_map);
7364                 phba->sli4_hba.fcp_cq_map = NULL;
7365         }
7366
7367         /* Release mailbox command work queue */
7368         if (phba->sli4_hba.mbx_wq != NULL) {
7369                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7370                 phba->sli4_hba.mbx_wq = NULL;
7371         }
7372
7373         /* Release ELS work queue */
7374         if (phba->sli4_hba.els_wq != NULL) {
7375                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7376                 phba->sli4_hba.els_wq = NULL;
7377         }
7378
7379         /* Release unsolicited receive queue */
7380         if (phba->sli4_hba.hdr_rq != NULL) {
7381                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7382                 phba->sli4_hba.hdr_rq = NULL;
7383         }
7384         if (phba->sli4_hba.dat_rq != NULL) {
7385                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7386                 phba->sli4_hba.dat_rq = NULL;
7387         }
7388
7389         /* Release ELS complete queue */
7390         if (phba->sli4_hba.els_cq != NULL) {
7391                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7392                 phba->sli4_hba.els_cq = NULL;
7393         }
7394
7395         /* Release mailbox command complete queue */
7396         if (phba->sli4_hba.mbx_cq != NULL) {
7397                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7398                 phba->sli4_hba.mbx_cq = NULL;
7399         }
7400
7401         return;
7402 }
7403
7404 /**
7405  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7406  * @phba: pointer to lpfc hba data structure.
7407  *
7408  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7409  * operation.
7410  *
7411  * Return codes
7412  *      0 - successful
7413  *      -ENOMEM - No available memory
7414  *      -EIO - The mailbox failed to complete successfully.
7415  **/
7416 int
7417 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7418 {
7419         struct lpfc_sli *psli = &phba->sli;
7420         struct lpfc_sli_ring *pring;
7421         int rc = -ENOMEM;
7422         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7423         int fcp_cq_index = 0;
7424         uint32_t shdr_status, shdr_add_status;
7425         union lpfc_sli4_cfg_shdr *shdr;
7426         LPFC_MBOXQ_t *mboxq;
7427         uint32_t length;
7428
7429         /* Check for dual-ULP support */
7430         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7431         if (!mboxq) {
7432                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7433                                 "3249 Unable to allocate memory for "
7434                                 "QUERY_FW_CFG mailbox command\n");
7435                 return -ENOMEM;
7436         }
7437         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7438                   sizeof(struct lpfc_sli4_cfg_mhdr));
7439         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7440                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7441                          length, LPFC_SLI4_MBX_EMBED);
7442
7443         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7444
7445         shdr = (union lpfc_sli4_cfg_shdr *)
7446                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7447         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7448         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7449         if (shdr_status || shdr_add_status || rc) {
7450                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7451                                 "3250 QUERY_FW_CFG mailbox failed with status "
7452                                 "x%x add_status x%x, mbx status x%x\n",
7453                                 shdr_status, shdr_add_status, rc);
7454                 if (rc != MBX_TIMEOUT)
7455                         mempool_free(mboxq, phba->mbox_mem_pool);
7456                 rc = -ENXIO;
7457                 goto out_error;
7458         }
7459
7460         phba->sli4_hba.fw_func_mode =
7461                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7462         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7463         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7464         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7465                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7466                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7467                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7468
7469         if (rc != MBX_TIMEOUT)
7470                 mempool_free(mboxq, phba->mbox_mem_pool);
7471
7472         /*
7473          * Set up HBA Event Queues (EQs)
7474          */
7475
7476         /* Set up HBA event queue */
7477         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7479                                 "3147 Fast-path EQs not allocated\n");
7480                 rc = -ENOMEM;
7481                 goto out_error;
7482         }
7483         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7484                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7485                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486                                         "0522 Fast-path EQ (%d) not "
7487                                         "allocated\n", fcp_eqidx);
7488                         rc = -ENOMEM;
7489                         goto out_destroy_hba_eq;
7490                 }
7491                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7492                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7493                 if (rc) {
7494                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7495                                         "0523 Failed setup of fast-path EQ "
7496                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7497                                         (uint32_t)rc);
7498                         goto out_destroy_hba_eq;
7499                 }
7500                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7501                                 "2584 HBA EQ setup: "
7502                                 "queue[%d]-id=%d\n", fcp_eqidx,
7503                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7504         }
7505
7506         /* Set up fast-path FCP Response Complete Queue */
7507         if (!phba->sli4_hba.fcp_cq) {
7508                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7509                                 "3148 Fast-path FCP CQ array not "
7510                                 "allocated\n");
7511                 rc = -ENOMEM;
7512                 goto out_destroy_hba_eq;
7513         }
7514
7515         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7516                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7517                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7518                                         "0526 Fast-path FCP CQ (%d) not "
7519                                         "allocated\n", fcp_cqidx);
7520                         rc = -ENOMEM;
7521                         goto out_destroy_fcp_cq;
7522                 }
7523                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7524                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7525                 if (rc) {
7526                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7527                                         "0527 Failed setup of fast-path FCP "
7528                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7529                                         (uint32_t)rc);
7530                         goto out_destroy_fcp_cq;
7531                 }
7532
7533                 /* Setup fcp_cq_map for fast lookup */
7534                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7535                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7536
7537                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7538                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7539                                 "parent seq[%d]-id=%d\n",
7540                                 fcp_cqidx,
7541                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7542                                 fcp_cqidx,
7543                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7544         }
7545
7546         /* Set up fast-path FCP Work Queue */
7547         if (!phba->sli4_hba.fcp_wq) {
7548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7549                                 "3149 Fast-path FCP WQ array not "
7550                                 "allocated\n");
7551                 rc = -ENOMEM;
7552                 goto out_destroy_fcp_cq;
7553         }
7554
7555         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7556                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7558                                         "0534 Fast-path FCP WQ (%d) not "
7559                                         "allocated\n", fcp_wqidx);
7560                         rc = -ENOMEM;
7561                         goto out_destroy_fcp_wq;
7562                 }
7563                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7564                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7565                                     LPFC_FCP);
7566                 if (rc) {
7567                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568                                         "0535 Failed setup of fast-path FCP "
7569                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7570                                         (uint32_t)rc);
7571                         goto out_destroy_fcp_wq;
7572                 }
7573
7574                 /* Bind this WQ to the next FCP ring */
7575                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7576                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7577                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7578
7579                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7580                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7581                                 "parent cq[%d]-id=%d\n",
7582                                 fcp_wqidx,
7583                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7584                                 fcp_cq_index,
7585                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7586         }
7587         /*
7588          * Set up Complete Queues (CQs)
7589          */
7590
7591         /* Set up slow-path MBOX Complete Queue as the first CQ */
7592         if (!phba->sli4_hba.mbx_cq) {
7593                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7594                                 "0528 Mailbox CQ not allocated\n");
7595                 rc = -ENOMEM;
7596                 goto out_destroy_fcp_wq;
7597         }
7598         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7599                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7600         if (rc) {
7601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7602                                 "0529 Failed setup of slow-path mailbox CQ: "
7603                                 "rc = 0x%x\n", (uint32_t)rc);
7604                 goto out_destroy_fcp_wq;
7605         }
7606         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7607                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7608                         phba->sli4_hba.mbx_cq->queue_id,
7609                         phba->sli4_hba.hba_eq[0]->queue_id);
7610
7611         /* Set up slow-path ELS Complete Queue */
7612         if (!phba->sli4_hba.els_cq) {
7613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7614                                 "0530 ELS CQ not allocated\n");
7615                 rc = -ENOMEM;
7616                 goto out_destroy_mbx_cq;
7617         }
7618         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7619                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7620         if (rc) {
7621                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7622                                 "0531 Failed setup of slow-path ELS CQ: "
7623                                 "rc = 0x%x\n", (uint32_t)rc);
7624                 goto out_destroy_mbx_cq;
7625         }
7626         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7627                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7628                         phba->sli4_hba.els_cq->queue_id,
7629                         phba->sli4_hba.hba_eq[0]->queue_id);
7630
7631         /*
7632          * Set up all the Work Queues (WQs)
7633          */
7634
7635         /* Set up Mailbox Command Queue */
7636         if (!phba->sli4_hba.mbx_wq) {
7637                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7638                                 "0538 Slow-path MQ not allocated\n");
7639                 rc = -ENOMEM;
7640                 goto out_destroy_els_cq;
7641         }
7642         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7643                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7644         if (rc) {
7645                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7646                                 "0539 Failed setup of slow-path MQ: "
7647                                 "rc = 0x%x\n", rc);
7648                 goto out_destroy_els_cq;
7649         }
7650         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7651                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7652                         phba->sli4_hba.mbx_wq->queue_id,
7653                         phba->sli4_hba.mbx_cq->queue_id);
7654
7655         /* Set up slow-path ELS Work Queue */
7656         if (!phba->sli4_hba.els_wq) {
7657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7658                                 "0536 Slow-path ELS WQ not allocated\n");
7659                 rc = -ENOMEM;
7660                 goto out_destroy_mbx_wq;
7661         }
7662         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7663                             phba->sli4_hba.els_cq, LPFC_ELS);
7664         if (rc) {
7665                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7666                                 "0537 Failed setup of slow-path ELS WQ: "
7667                                 "rc = 0x%x\n", (uint32_t)rc);
7668                 goto out_destroy_mbx_wq;
7669         }
7670
7671         /* Bind this WQ to the ELS ring */
7672         pring = &psli->ring[LPFC_ELS_RING];
7673         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7674         phba->sli4_hba.els_cq->pring = pring;
7675
7676         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7677                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7678                         phba->sli4_hba.els_wq->queue_id,
7679                         phba->sli4_hba.els_cq->queue_id);
7680
7681         /*
7682          * Create Receive Queue (RQ)
7683          */
7684         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7685                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686                                 "0540 Receive Queue not allocated\n");
7687                 rc = -ENOMEM;
7688                 goto out_destroy_els_wq;
7689         }
7690
7691         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7692         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7693
7694         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7695                             phba->sli4_hba.els_cq, LPFC_USOL);
7696         if (rc) {
7697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7698                                 "0541 Failed setup of Receive Queue: "
7699                                 "rc = 0x%x\n", (uint32_t)rc);
7700                 goto out_destroy_fcp_wq;
7701         }
7702
7703         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7704                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7705                         "parent cq-id=%d\n",
7706                         phba->sli4_hba.hdr_rq->queue_id,
7707                         phba->sli4_hba.dat_rq->queue_id,
7708                         phba->sli4_hba.els_cq->queue_id);
7709
7710         if (phba->cfg_fof) {
7711                 rc = lpfc_fof_queue_setup(phba);
7712                 if (rc) {
7713                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7714                                         "0549 Failed setup of FOF Queues: "
7715                                         "rc = 0x%x\n", rc);
7716                         goto out_destroy_els_rq;
7717                 }
7718         }
7719         return 0;
7720
7721 out_destroy_els_rq:
7722         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7723 out_destroy_els_wq:
7724         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7725 out_destroy_mbx_wq:
7726         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7727 out_destroy_els_cq:
7728         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7729 out_destroy_mbx_cq:
7730         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7731 out_destroy_fcp_wq:
7732         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7733                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7734 out_destroy_fcp_cq:
7735         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7736                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7737 out_destroy_hba_eq:
7738         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7739                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7740 out_error:
7741         return rc;
7742 }
7743
7744 /**
7745  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7746  * @phba: pointer to lpfc hba data structure.
7747  *
7748  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7749  * operation.
7750  *
7751  * Return codes
7752  *      0 - successful
7753  *      -ENOMEM - No available memory
7754  *      -EIO - The mailbox failed to complete successfully.
7755  **/
7756 void
7757 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7758 {
7759         int fcp_qidx;
7760
7761         /* Unset the queues created for Flash Optimized Fabric operations */
7762         if (phba->cfg_fof)
7763                 lpfc_fof_queue_destroy(phba);
7764         /* Unset mailbox command work queue */
7765         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7766         /* Unset ELS work queue */
7767         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7768         /* Unset unsolicited receive queue */
7769         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7770         /* Unset FCP work queue */
7771         if (phba->sli4_hba.fcp_wq) {
7772                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7773                      fcp_qidx++)
7774                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7775         }
7776         /* Unset mailbox command complete queue */
7777         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7778         /* Unset ELS complete queue */
7779         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7780         /* Unset FCP response complete queue */
7781         if (phba->sli4_hba.fcp_cq) {
7782                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7783                      fcp_qidx++)
7784                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7785         }
7786         /* Unset fast-path event queue */
7787         if (phba->sli4_hba.hba_eq) {
7788                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7789                      fcp_qidx++)
7790                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7791         }
7792 }
7793
7794 /**
7795  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7796  * @phba: pointer to lpfc hba data structure.
7797  *
7798  * This routine is invoked to allocate and set up a pool of completion queue
7799  * events. The body of the completion queue event is a completion queue entry
7800  * CQE. For now, this pool is used for the interrupt service routine to queue
7801  * the following HBA completion queue events for the worker thread to process:
7802  *   - Mailbox asynchronous events
7803  *   - Receive queue completion unsolicited events
7804  * Later, this can be used for all the slow-path events.
7805  *
7806  * Return codes
7807  *      0 - successful
7808  *      -ENOMEM - No available memory
7809  **/
7810 static int
7811 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7812 {
7813         struct lpfc_cq_event *cq_event;
7814         int i;
7815
7816         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7817                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7818                 if (!cq_event)
7819                         goto out_pool_create_fail;
7820                 list_add_tail(&cq_event->list,
7821                               &phba->sli4_hba.sp_cqe_event_pool);
7822         }
7823         return 0;
7824
7825 out_pool_create_fail:
7826         lpfc_sli4_cq_event_pool_destroy(phba);
7827         return -ENOMEM;
7828 }
7829
7830 /**
7831  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7832  * @phba: pointer to lpfc hba data structure.
7833  *
7834  * This routine is invoked to free the pool of completion queue events at
7835  * driver unload time. Note that, it is the responsibility of the driver
7836  * cleanup routine to free all the outstanding completion-queue events
7837  * allocated from this pool back into the pool before invoking this routine
7838  * to destroy the pool.
7839  **/
7840 static void
7841 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7842 {
7843         struct lpfc_cq_event *cq_event, *next_cq_event;
7844
7845         list_for_each_entry_safe(cq_event, next_cq_event,
7846                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7847                 list_del(&cq_event->list);
7848                 kfree(cq_event);
7849         }
7850 }
7851
7852 /**
7853  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7854  * @phba: pointer to lpfc hba data structure.
7855  *
7856  * This routine is the lock free version of the API invoked to allocate a
7857  * completion-queue event from the free pool.
7858  *
7859  * Return: Pointer to the newly allocated completion-queue event if successful
7860  *         NULL otherwise.
7861  **/
7862 struct lpfc_cq_event *
7863 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7864 {
7865         struct lpfc_cq_event *cq_event = NULL;
7866
7867         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7868                          struct lpfc_cq_event, list);
7869         return cq_event;
7870 }
7871
7872 /**
7873  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7874  * @phba: pointer to lpfc hba data structure.
7875  *
7876  * This routine is the lock version of the API invoked to allocate a
7877  * completion-queue event from the free pool.
7878  *
7879  * Return: Pointer to the newly allocated completion-queue event if successful
7880  *         NULL otherwise.
7881  **/
7882 struct lpfc_cq_event *
7883 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7884 {
7885         struct lpfc_cq_event *cq_event;
7886         unsigned long iflags;
7887
7888         spin_lock_irqsave(&phba->hbalock, iflags);
7889         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7890         spin_unlock_irqrestore(&phba->hbalock, iflags);
7891         return cq_event;
7892 }
7893
7894 /**
7895  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7896  * @phba: pointer to lpfc hba data structure.
7897  * @cq_event: pointer to the completion queue event to be freed.
7898  *
7899  * This routine is the lock free version of the API invoked to release a
7900  * completion-queue event back into the free pool.
7901  **/
7902 void
7903 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7904                              struct lpfc_cq_event *cq_event)
7905 {
7906         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7907 }
7908
7909 /**
7910  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7911  * @phba: pointer to lpfc hba data structure.
7912  * @cq_event: pointer to the completion queue event to be freed.
7913  *
7914  * This routine is the lock version of the API invoked to release a
7915  * completion-queue event back into the free pool.
7916  **/
7917 void
7918 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7919                            struct lpfc_cq_event *cq_event)
7920 {
7921         unsigned long iflags;
7922         spin_lock_irqsave(&phba->hbalock, iflags);
7923         __lpfc_sli4_cq_event_release(phba, cq_event);
7924         spin_unlock_irqrestore(&phba->hbalock, iflags);
7925 }
7926
7927 /**
7928  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7929  * @phba: pointer to lpfc hba data structure.
7930  *
7931  * This routine is to free all the pending completion-queue events to the
7932  * back into the free pool for device reset.
7933  **/
7934 static void
7935 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7936 {
7937         LIST_HEAD(cqelist);
7938         struct lpfc_cq_event *cqe;
7939         unsigned long iflags;
7940
7941         /* Retrieve all the pending WCQEs from pending WCQE lists */
7942         spin_lock_irqsave(&phba->hbalock, iflags);
7943         /* Pending FCP XRI abort events */
7944         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7945                          &cqelist);
7946         /* Pending ELS XRI abort events */
7947         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7948                          &cqelist);
7949         /* Pending asynnc events */
7950         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7951                          &cqelist);
7952         spin_unlock_irqrestore(&phba->hbalock, iflags);
7953
7954         while (!list_empty(&cqelist)) {
7955                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7956                 lpfc_sli4_cq_event_release(phba, cqe);
7957         }
7958 }
7959
7960 /**
7961  * lpfc_pci_function_reset - Reset pci function.
7962  * @phba: pointer to lpfc hba data structure.
7963  *
7964  * This routine is invoked to request a PCI function reset. It will destroys
7965  * all resources assigned to the PCI function which originates this request.
7966  *
7967  * Return codes
7968  *      0 - successful
7969  *      -ENOMEM - No available memory
7970  *      -EIO - The mailbox failed to complete successfully.
7971  **/
7972 int
7973 lpfc_pci_function_reset(struct lpfc_hba *phba)
7974 {
7975         LPFC_MBOXQ_t *mboxq;
7976         uint32_t rc = 0, if_type;
7977         uint32_t shdr_status, shdr_add_status;
7978         uint32_t rdy_chk;
7979         uint32_t port_reset = 0;
7980         union lpfc_sli4_cfg_shdr *shdr;
7981         struct lpfc_register reg_data;
7982         uint16_t devid;
7983
7984         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7985         switch (if_type) {
7986         case LPFC_SLI_INTF_IF_TYPE_0:
7987                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7988                                                        GFP_KERNEL);
7989                 if (!mboxq) {
7990                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7991                                         "0494 Unable to allocate memory for "
7992                                         "issuing SLI_FUNCTION_RESET mailbox "
7993                                         "command\n");
7994                         return -ENOMEM;
7995                 }
7996
7997                 /* Setup PCI function reset mailbox-ioctl command */
7998                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7999                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8000                                  LPFC_SLI4_MBX_EMBED);
8001                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8002                 shdr = (union lpfc_sli4_cfg_shdr *)
8003                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8004                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8005                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8006                                          &shdr->response);
8007                 if (rc != MBX_TIMEOUT)
8008                         mempool_free(mboxq, phba->mbox_mem_pool);
8009                 if (shdr_status || shdr_add_status || rc) {
8010                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8011                                         "0495 SLI_FUNCTION_RESET mailbox "
8012                                         "failed with status x%x add_status x%x,"
8013                                         " mbx status x%x\n",
8014                                         shdr_status, shdr_add_status, rc);
8015                         rc = -ENXIO;
8016                 }
8017                 break;
8018         case LPFC_SLI_INTF_IF_TYPE_2:
8019 wait:
8020                 /*
8021                  * Poll the Port Status Register and wait for RDY for
8022                  * up to 30 seconds. If the port doesn't respond, treat
8023                  * it as an error.
8024                  */
8025                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8026                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8027                                 STATUSregaddr, &reg_data.word0)) {
8028                                 rc = -ENODEV;
8029                                 goto out;
8030                         }
8031                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8032                                 break;
8033                         msleep(20);
8034                 }
8035
8036                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8037                         phba->work_status[0] = readl(
8038                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8039                         phba->work_status[1] = readl(
8040                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8041                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8042                                         "2890 Port not ready, port status reg "
8043                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8044                                         reg_data.word0,
8045                                         phba->work_status[0],
8046                                         phba->work_status[1]);
8047                         rc = -ENODEV;
8048                         goto out;
8049                 }
8050
8051                 if (!port_reset) {
8052                         /*
8053                          * Reset the port now
8054                          */
8055                         reg_data.word0 = 0;
8056                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8057                                LPFC_SLIPORT_LITTLE_ENDIAN);
8058                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8059                                LPFC_SLIPORT_INIT_PORT);
8060                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8061                                CTRLregaddr);
8062                         /* flush */
8063                         pci_read_config_word(phba->pcidev,
8064                                              PCI_DEVICE_ID, &devid);
8065
8066                         port_reset = 1;
8067                         msleep(20);
8068                         goto wait;
8069                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8070                         rc = -ENODEV;
8071                         goto out;
8072                 }
8073                 break;
8074
8075         case LPFC_SLI_INTF_IF_TYPE_1:
8076         default:
8077                 break;
8078         }
8079
8080 out:
8081         /* Catch the not-ready port failure after a port reset. */
8082         if (rc) {
8083                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8084                                 "3317 HBA not functional: IP Reset Failed "
8085                                 "try: echo fw_reset > board_mode\n");
8086                 rc = -ENODEV;
8087         }
8088
8089         return rc;
8090 }
8091
8092 /**
8093  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8094  * @phba: pointer to lpfc hba data structure.
8095  *
8096  * This routine is invoked to set up the PCI device memory space for device
8097  * with SLI-4 interface spec.
8098  *
8099  * Return codes
8100  *      0 - successful
8101  *      other values - error
8102  **/
8103 static int
8104 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8105 {
8106         struct pci_dev *pdev;
8107         unsigned long bar0map_len, bar1map_len, bar2map_len;
8108         int error = -ENODEV;
8109         uint32_t if_type;
8110
8111         /* Obtain PCI device reference */
8112         if (!phba->pcidev)
8113                 return error;
8114         else
8115                 pdev = phba->pcidev;
8116
8117         /* Set the device DMA mask size */
8118         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8119          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8120                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8121                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8122                         return error;
8123                 }
8124         }
8125
8126         /*
8127          * The BARs and register set definitions and offset locations are
8128          * dependent on the if_type.
8129          */
8130         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8131                                   &phba->sli4_hba.sli_intf.word0)) {
8132                 return error;
8133         }
8134
8135         /* There is no SLI3 failback for SLI4 devices. */
8136         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8137             LPFC_SLI_INTF_VALID) {
8138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8139                                 "2894 SLI_INTF reg contents invalid "
8140                                 "sli_intf reg 0x%x\n",
8141                                 phba->sli4_hba.sli_intf.word0);
8142                 return error;
8143         }
8144
8145         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8146         /*
8147          * Get the bus address of SLI4 device Bar regions and the
8148          * number of bytes required by each mapping. The mapping of the
8149          * particular PCI BARs regions is dependent on the type of
8150          * SLI4 device.
8151          */
8152         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8153                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8154                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8155
8156                 /*
8157                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8158                  * addr
8159                  */
8160                 phba->sli4_hba.conf_regs_memmap_p =
8161                         ioremap(phba->pci_bar0_map, bar0map_len);
8162                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8163                         dev_printk(KERN_ERR, &pdev->dev,
8164                                    "ioremap failed for SLI4 PCI config "
8165                                    "registers.\n");
8166                         goto out;
8167                 }
8168                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8169                 /* Set up BAR0 PCI config space register memory map */
8170                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8171         } else {
8172                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8173                 bar0map_len = pci_resource_len(pdev, 1);
8174                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8175                         dev_printk(KERN_ERR, &pdev->dev,
8176                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8177                         goto out;
8178                 }
8179                 phba->sli4_hba.conf_regs_memmap_p =
8180                                 ioremap(phba->pci_bar0_map, bar0map_len);
8181                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8182                         dev_printk(KERN_ERR, &pdev->dev,
8183                                 "ioremap failed for SLI4 PCI config "
8184                                 "registers.\n");
8185                                 goto out;
8186                 }
8187                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8188         }
8189
8190         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8191             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8192                 /*
8193                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8194                  * virtual address and setup the registers.
8195                  */
8196                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8197                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8198                 phba->sli4_hba.ctrl_regs_memmap_p =
8199                                 ioremap(phba->pci_bar1_map, bar1map_len);
8200                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8201                         dev_printk(KERN_ERR, &pdev->dev,
8202                            "ioremap failed for SLI4 HBA control registers.\n");
8203                         goto out_iounmap_conf;
8204                 }
8205                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8206                 lpfc_sli4_bar1_register_memmap(phba);
8207         }
8208
8209         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8210             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8211                 /*
8212                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8213                  * virtual address and setup the registers.
8214                  */
8215                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8216                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8217                 phba->sli4_hba.drbl_regs_memmap_p =
8218                                 ioremap(phba->pci_bar2_map, bar2map_len);
8219                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8220                         dev_printk(KERN_ERR, &pdev->dev,
8221                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8222                         goto out_iounmap_ctrl;
8223                 }
8224                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8225                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8226                 if (error)
8227                         goto out_iounmap_all;
8228         }
8229
8230         return 0;
8231
8232 out_iounmap_all:
8233         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8234 out_iounmap_ctrl:
8235         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8236 out_iounmap_conf:
8237         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8238 out:
8239         return error;
8240 }
8241
8242 /**
8243  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8244  * @phba: pointer to lpfc hba data structure.
8245  *
8246  * This routine is invoked to unset the PCI device memory space for device
8247  * with SLI-4 interface spec.
8248  **/
8249 static void
8250 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8251 {
8252         uint32_t if_type;
8253         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8254
8255         switch (if_type) {
8256         case LPFC_SLI_INTF_IF_TYPE_0:
8257                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8258                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8259                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8260                 break;
8261         case LPFC_SLI_INTF_IF_TYPE_2:
8262                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8263                 break;
8264         case LPFC_SLI_INTF_IF_TYPE_1:
8265         default:
8266                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8267                            "FATAL - unsupported SLI4 interface type - %d\n",
8268                            if_type);
8269                 break;
8270         }
8271 }
8272
8273 /**
8274  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8275  * @phba: pointer to lpfc hba data structure.
8276  *
8277  * This routine is invoked to enable the MSI-X interrupt vectors to device
8278  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8279  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8280  * once invoked, enables either all or nothing, depending on the current
8281  * availability of PCI vector resources. The device driver is responsible
8282  * for calling the individual request_irq() to register each MSI-X vector
8283  * with a interrupt handler, which is done in this function. Note that
8284  * later when device is unloading, the driver should always call free_irq()
8285  * on all MSI-X vectors it has done request_irq() on before calling
8286  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8287  * will be left with MSI-X enabled and leaks its vectors.
8288  *
8289  * Return codes
8290  *   0 - successful
8291  *   other values - error
8292  **/
8293 static int
8294 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8295 {
8296         int rc, i;
8297         LPFC_MBOXQ_t *pmb;
8298
8299         /* Set up MSI-X multi-message vectors */
8300         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8301                 phba->msix_entries[i].entry = i;
8302
8303         /* Configure MSI-X capability structure */
8304         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8305                                    LPFC_MSIX_VECTORS);
8306         if (rc) {
8307                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8308                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8309                 goto vec_fail_out;
8310         }
8311         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8312                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8313                                 "0477 MSI-X entry[%d]: vector=x%x "
8314                                 "message=%d\n", i,
8315                                 phba->msix_entries[i].vector,
8316                                 phba->msix_entries[i].entry);
8317         /*
8318          * Assign MSI-X vectors to interrupt handlers
8319          */
8320
8321         /* vector-0 is associated to slow-path handler */
8322         rc = request_irq(phba->msix_entries[0].vector,
8323                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8324                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8325         if (rc) {
8326                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8327                                 "0421 MSI-X slow-path request_irq failed "
8328                                 "(%d)\n", rc);
8329                 goto msi_fail_out;
8330         }
8331
8332         /* vector-1 is associated to fast-path handler */
8333         rc = request_irq(phba->msix_entries[1].vector,
8334                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8335                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8336
8337         if (rc) {
8338                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8339                                 "0429 MSI-X fast-path request_irq failed "
8340                                 "(%d)\n", rc);
8341                 goto irq_fail_out;
8342         }
8343
8344         /*
8345          * Configure HBA MSI-X attention conditions to messages
8346          */
8347         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8348
8349         if (!pmb) {
8350                 rc = -ENOMEM;
8351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8352                                 "0474 Unable to allocate memory for issuing "
8353                                 "MBOX_CONFIG_MSI command\n");
8354                 goto mem_fail_out;
8355         }
8356         rc = lpfc_config_msi(phba, pmb);
8357         if (rc)
8358                 goto mbx_fail_out;
8359         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8360         if (rc != MBX_SUCCESS) {
8361                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8362                                 "0351 Config MSI mailbox command failed, "
8363                                 "mbxCmd x%x, mbxStatus x%x\n",
8364                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8365                 goto mbx_fail_out;
8366         }
8367
8368         /* Free memory allocated for mailbox command */
8369         mempool_free(pmb, phba->mbox_mem_pool);
8370         return rc;
8371
8372 mbx_fail_out:
8373         /* Free memory allocated for mailbox command */
8374         mempool_free(pmb, phba->mbox_mem_pool);
8375
8376 mem_fail_out:
8377         /* free the irq already requested */
8378         free_irq(phba->msix_entries[1].vector, phba);
8379
8380 irq_fail_out:
8381         /* free the irq already requested */
8382         free_irq(phba->msix_entries[0].vector, phba);
8383
8384 msi_fail_out:
8385         /* Unconfigure MSI-X capability structure */
8386         pci_disable_msix(phba->pcidev);
8387
8388 vec_fail_out:
8389         return rc;
8390 }
8391
8392 /**
8393  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8394  * @phba: pointer to lpfc hba data structure.
8395  *
8396  * This routine is invoked to release the MSI-X vectors and then disable the
8397  * MSI-X interrupt mode to device with SLI-3 interface spec.
8398  **/
8399 static void
8400 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8401 {
8402         int i;
8403
8404         /* Free up MSI-X multi-message vectors */
8405         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8406                 free_irq(phba->msix_entries[i].vector, phba);
8407         /* Disable MSI-X */
8408         pci_disable_msix(phba->pcidev);
8409
8410         return;
8411 }
8412
8413 /**
8414  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8415  * @phba: pointer to lpfc hba data structure.
8416  *
8417  * This routine is invoked to enable the MSI interrupt mode to device with
8418  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8419  * enable the MSI vector. The device driver is responsible for calling the
8420  * request_irq() to register MSI vector with a interrupt the handler, which
8421  * is done in this function.
8422  *
8423  * Return codes
8424  *      0 - successful
8425  *      other values - error
8426  */
8427 static int
8428 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8429 {
8430         int rc;
8431
8432         rc = pci_enable_msi(phba->pcidev);
8433         if (!rc)
8434                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8435                                 "0462 PCI enable MSI mode success.\n");
8436         else {
8437                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8438                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8439                 return rc;
8440         }
8441
8442         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8443                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8444         if (rc) {
8445                 pci_disable_msi(phba->pcidev);
8446                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8447                                 "0478 MSI request_irq failed (%d)\n", rc);
8448         }
8449         return rc;
8450 }
8451
8452 /**
8453  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8454  * @phba: pointer to lpfc hba data structure.
8455  *
8456  * This routine is invoked to disable the MSI interrupt mode to device with
8457  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8458  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8459  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8460  * its vector.
8461  */
8462 static void
8463 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8464 {
8465         free_irq(phba->pcidev->irq, phba);
8466         pci_disable_msi(phba->pcidev);
8467         return;
8468 }
8469
8470 /**
8471  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8472  * @phba: pointer to lpfc hba data structure.
8473  *
8474  * This routine is invoked to enable device interrupt and associate driver's
8475  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8476  * spec. Depends on the interrupt mode configured to the driver, the driver
8477  * will try to fallback from the configured interrupt mode to an interrupt
8478  * mode which is supported by the platform, kernel, and device in the order
8479  * of:
8480  * MSI-X -> MSI -> IRQ.
8481  *
8482  * Return codes
8483  *   0 - successful
8484  *   other values - error
8485  **/
8486 static uint32_t
8487 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8488 {
8489         uint32_t intr_mode = LPFC_INTR_ERROR;
8490         int retval;
8491
8492         if (cfg_mode == 2) {
8493                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8494                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8495                 if (!retval) {
8496                         /* Now, try to enable MSI-X interrupt mode */
8497                         retval = lpfc_sli_enable_msix(phba);
8498                         if (!retval) {
8499                                 /* Indicate initialization to MSI-X mode */
8500                                 phba->intr_type = MSIX;
8501                                 intr_mode = 2;
8502                         }
8503                 }
8504         }
8505
8506         /* Fallback to MSI if MSI-X initialization failed */
8507         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8508                 retval = lpfc_sli_enable_msi(phba);
8509                 if (!retval) {
8510                         /* Indicate initialization to MSI mode */
8511                         phba->intr_type = MSI;
8512                         intr_mode = 1;
8513                 }
8514         }
8515
8516         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8517         if (phba->intr_type == NONE) {
8518                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8519                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8520                 if (!retval) {
8521                         /* Indicate initialization to INTx mode */
8522                         phba->intr_type = INTx;
8523                         intr_mode = 0;
8524                 }
8525         }
8526         return intr_mode;
8527 }
8528
8529 /**
8530  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8531  * @phba: pointer to lpfc hba data structure.
8532  *
8533  * This routine is invoked to disable device interrupt and disassociate the
8534  * driver's interrupt handler(s) from interrupt vector(s) to device with
8535  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8536  * release the interrupt vector(s) for the message signaled interrupt.
8537  **/
8538 static void
8539 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8540 {
8541         /* Disable the currently initialized interrupt mode */
8542         if (phba->intr_type == MSIX)
8543                 lpfc_sli_disable_msix(phba);
8544         else if (phba->intr_type == MSI)
8545                 lpfc_sli_disable_msi(phba);
8546         else if (phba->intr_type == INTx)
8547                 free_irq(phba->pcidev->irq, phba);
8548
8549         /* Reset interrupt management states */
8550         phba->intr_type = NONE;
8551         phba->sli.slistat.sli_intr = 0;
8552
8553         return;
8554 }
8555
8556 /**
8557  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8558  * @phba: pointer to lpfc hba data structure.
8559  *
8560  * Find next available CPU to use for IRQ to CPU affinity.
8561  */
8562 static int
8563 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8564 {
8565         struct lpfc_vector_map_info *cpup;
8566         int cpu;
8567
8568         cpup = phba->sli4_hba.cpu_map;
8569         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8570                 /* CPU must be online */
8571                 if (cpu_online(cpu)) {
8572                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8573                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8574                             (cpup->phys_id == phys_id)) {
8575                                 return cpu;
8576                         }
8577                 }
8578                 cpup++;
8579         }
8580
8581         /*
8582          * If we get here, we have used ALL CPUs for the specific
8583          * phys_id. Now we need to clear out lpfc_used_cpu and start
8584          * reusing CPUs.
8585          */
8586
8587         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8588                 if (lpfc_used_cpu[cpu] == phys_id)
8589                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8590         }
8591
8592         cpup = phba->sli4_hba.cpu_map;
8593         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8594                 /* CPU must be online */
8595                 if (cpu_online(cpu)) {
8596                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8597                             (cpup->phys_id == phys_id)) {
8598                                 return cpu;
8599                         }
8600                 }
8601                 cpup++;
8602         }
8603         return LPFC_VECTOR_MAP_EMPTY;
8604 }
8605
8606 /**
8607  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8608  * @phba:       pointer to lpfc hba data structure.
8609  * @vectors:    number of HBA vectors
8610  *
8611  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8612  * affinization across multple physical CPUs (numa nodes).
8613  * In addition, this routine will assign an IO channel for each CPU
8614  * to use when issuing I/Os.
8615  */
8616 static int
8617 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8618 {
8619         int i, idx, saved_chann, used_chann, cpu, phys_id;
8620         int max_phys_id, min_phys_id;
8621         int num_io_channel, first_cpu, chan;
8622         struct lpfc_vector_map_info *cpup;
8623 #ifdef CONFIG_X86
8624         struct cpuinfo_x86 *cpuinfo;
8625 #endif
8626         struct cpumask *mask;
8627         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8628
8629         /* If there is no mapping, just return */
8630         if (!phba->cfg_fcp_cpu_map)
8631                 return 1;
8632
8633         /* Init cpu_map array */
8634         memset(phba->sli4_hba.cpu_map, 0xff,
8635                (sizeof(struct lpfc_vector_map_info) *
8636                 phba->sli4_hba.num_present_cpu));
8637
8638         max_phys_id = 0;
8639         min_phys_id = 0xff;
8640         phys_id = 0;
8641         num_io_channel = 0;
8642         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8643
8644         /* Update CPU map with physical id and core id of each CPU */
8645         cpup = phba->sli4_hba.cpu_map;
8646         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8647 #ifdef CONFIG_X86
8648                 cpuinfo = &cpu_data(cpu);
8649                 cpup->phys_id = cpuinfo->phys_proc_id;
8650                 cpup->core_id = cpuinfo->cpu_core_id;
8651 #else
8652                 /* No distinction between CPUs for other platforms */
8653                 cpup->phys_id = 0;
8654                 cpup->core_id = 0;
8655 #endif
8656
8657                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8658                                 "3328 CPU physid %d coreid %d\n",
8659                                 cpup->phys_id, cpup->core_id);
8660
8661                 if (cpup->phys_id > max_phys_id)
8662                         max_phys_id = cpup->phys_id;
8663                 if (cpup->phys_id < min_phys_id)
8664                         min_phys_id = cpup->phys_id;
8665                 cpup++;
8666         }
8667
8668         phys_id = min_phys_id;
8669         /* Now associate the HBA vectors with specific CPUs */
8670         for (idx = 0; idx < vectors; idx++) {
8671                 cpup = phba->sli4_hba.cpu_map;
8672                 cpu = lpfc_find_next_cpu(phba, phys_id);
8673                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8674
8675                         /* Try for all phys_id's */
8676                         for (i = 1; i < max_phys_id; i++) {
8677                                 phys_id++;
8678                                 if (phys_id > max_phys_id)
8679                                         phys_id = min_phys_id;
8680                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8681                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8682                                         continue;
8683                                 goto found;
8684                         }
8685
8686                         /* Use round robin for scheduling */
8687                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8688                         chan = 0;
8689                         cpup = phba->sli4_hba.cpu_map;
8690                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8691                                 cpup->channel_id = chan;
8692                                 cpup++;
8693                                 chan++;
8694                                 if (chan >= phba->cfg_fcp_io_channel)
8695                                         chan = 0;
8696                         }
8697
8698                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8699                                         "3329 Cannot set affinity:"
8700                                         "Error mapping vector %d (%d)\n",
8701                                         idx, vectors);
8702                         return 0;
8703                 }
8704 found:
8705                 cpup += cpu;
8706                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8707                         lpfc_used_cpu[cpu] = phys_id;
8708
8709                 /* Associate vector with selected CPU */
8710                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8711
8712                 /* Associate IO channel with selected CPU */
8713                 cpup->channel_id = idx;
8714                 num_io_channel++;
8715
8716                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8717                         first_cpu = cpu;
8718
8719                 /* Now affinitize to the selected CPU */
8720                 mask = &cpup->maskbits;
8721                 cpumask_clear(mask);
8722                 cpumask_set_cpu(cpu, mask);
8723                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8724                                           vector, mask);
8725
8726                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8727                                 "3330 Set Affinity: CPU %d channel %d "
8728                                 "irq %d (%x)\n",
8729                                 cpu, cpup->channel_id,
8730                                 phba->sli4_hba.msix_entries[idx].vector, i);
8731
8732                 /* Spread vector mapping across multple physical CPU nodes */
8733                 phys_id++;
8734                 if (phys_id > max_phys_id)
8735                         phys_id = min_phys_id;
8736         }
8737
8738         /*
8739          * Finally fill in the IO channel for any remaining CPUs.
8740          * At this point, all IO channels have been assigned to a specific
8741          * MSIx vector, mapped to a specific CPU.
8742          * Base the remaining IO channel assigned, to IO channels already
8743          * assigned to other CPUs on the same phys_id.
8744          */
8745         for (i = min_phys_id; i <= max_phys_id; i++) {
8746                 /*
8747                  * If there are no io channels already mapped to
8748                  * this phys_id, just round robin thru the io_channels.
8749                  * Setup chann[] for round robin.
8750                  */
8751                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8752                         chann[idx] = idx;
8753
8754                 saved_chann = 0;
8755                 used_chann = 0;
8756
8757                 /*
8758                  * First build a list of IO channels already assigned
8759                  * to this phys_id before reassigning the same IO
8760                  * channels to the remaining CPUs.
8761                  */
8762                 cpup = phba->sli4_hba.cpu_map;
8763                 cpu = first_cpu;
8764                 cpup += cpu;
8765                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8766                      idx++) {
8767                         if (cpup->phys_id == i) {
8768                                 /*
8769                                  * Save any IO channels that are
8770                                  * already mapped to this phys_id.
8771                                  */
8772                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8773                                         chann[saved_chann] =
8774                                                 cpup->channel_id;
8775                                         saved_chann++;
8776                                         goto out;
8777                                 }
8778
8779                                 /* See if we are using round-robin */
8780                                 if (saved_chann == 0)
8781                                         saved_chann =
8782                                                 phba->cfg_fcp_io_channel;
8783
8784                                 /* Associate next IO channel with CPU */
8785                                 cpup->channel_id = chann[used_chann];
8786                                 num_io_channel++;
8787                                 used_chann++;
8788                                 if (used_chann == saved_chann)
8789                                         used_chann = 0;
8790
8791                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8792                                                 "3331 Set IO_CHANN "
8793                                                 "CPU %d channel %d\n",
8794                                                 idx, cpup->channel_id);
8795                         }
8796 out:
8797                         cpu++;
8798                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8799                                 cpup = phba->sli4_hba.cpu_map;
8800                                 cpu = 0;
8801                         } else {
8802                                 cpup++;
8803                         }
8804                 }
8805         }
8806
8807         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8808                 cpup = phba->sli4_hba.cpu_map;
8809                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8810                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8811                                 cpup->channel_id = 0;
8812                                 num_io_channel++;
8813
8814                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8815                                                 "3332 Assign IO_CHANN "
8816                                                 "CPU %d channel %d\n",
8817                                                 idx, cpup->channel_id);
8818                         }
8819                         cpup++;
8820                 }
8821         }
8822
8823         /* Sanity check */
8824         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8825                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8826                                 "3333 Set affinity mismatch:"
8827                                 "%d chann != %d cpus: %d vectors\n",
8828                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8829                                 vectors);
8830
8831         /* Enable using cpu affinity for scheduling */
8832         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8833         return 1;
8834 }
8835
8836
8837 /**
8838  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8839  * @phba: pointer to lpfc hba data structure.
8840  *
8841  * This routine is invoked to enable the MSI-X interrupt vectors to device
8842  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8843  * is called to enable the MSI-X vectors. The device driver is responsible
8844  * for calling the individual request_irq() to register each MSI-X vector
8845  * with a interrupt handler, which is done in this function. Note that
8846  * later when device is unloading, the driver should always call free_irq()
8847  * on all MSI-X vectors it has done request_irq() on before calling
8848  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8849  * will be left with MSI-X enabled and leaks its vectors.
8850  *
8851  * Return codes
8852  * 0 - successful
8853  * other values - error
8854  **/
8855 static int
8856 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8857 {
8858         int vectors, rc, index;
8859
8860         /* Set up MSI-X multi-message vectors */
8861         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8862                 phba->sli4_hba.msix_entries[index].entry = index;
8863
8864         /* Configure MSI-X capability structure */
8865         vectors = phba->cfg_fcp_io_channel;
8866         if (phba->cfg_fof) {
8867                 phba->sli4_hba.msix_entries[index].entry = index;
8868                 vectors++;
8869         }
8870         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8871                                    2, vectors);
8872         if (rc < 0) {
8873                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8874                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8875                 goto vec_fail_out;
8876         }
8877         vectors = rc;
8878
8879         /* Log MSI-X vector assignment */
8880         for (index = 0; index < vectors; index++)
8881                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8882                                 "0489 MSI-X entry[%d]: vector=x%x "
8883                                 "message=%d\n", index,
8884                                 phba->sli4_hba.msix_entries[index].vector,
8885                                 phba->sli4_hba.msix_entries[index].entry);
8886
8887         /* Assign MSI-X vectors to interrupt handlers */
8888         for (index = 0; index < vectors; index++) {
8889                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8890                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8891                          LPFC_SLI4_HANDLER_NAME_SZ,
8892                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8893
8894                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8895                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8896                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8897                 if (phba->cfg_fof && (index == (vectors - 1)))
8898                         rc = request_irq(
8899                                 phba->sli4_hba.msix_entries[index].vector,
8900                                  &lpfc_sli4_fof_intr_handler, IRQF_SHARED,
8901                                  (char *)&phba->sli4_hba.handler_name[index],
8902                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8903                 else
8904                         rc = request_irq(
8905                                 phba->sli4_hba.msix_entries[index].vector,
8906                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8907                                  (char *)&phba->sli4_hba.handler_name[index],
8908                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8909                 if (rc) {
8910                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8911                                         "0486 MSI-X fast-path (%d) "
8912                                         "request_irq failed (%d)\n", index, rc);
8913                         goto cfg_fail_out;
8914                 }
8915         }
8916
8917         if (phba->cfg_fof)
8918                 vectors--;
8919
8920         if (vectors != phba->cfg_fcp_io_channel) {
8921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8922                                 "3238 Reducing IO channels to match number of "
8923                                 "MSI-X vectors, requested %d got %d\n",
8924                                 phba->cfg_fcp_io_channel, vectors);
8925                 phba->cfg_fcp_io_channel = vectors;
8926         }
8927
8928         lpfc_sli4_set_affinity(phba, vectors);
8929         return rc;
8930
8931 cfg_fail_out:
8932         /* free the irq already requested */
8933         for (--index; index >= 0; index--) {
8934                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8935                                           vector, NULL);
8936                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8937                          &phba->sli4_hba.fcp_eq_hdl[index]);
8938         }
8939
8940         /* Unconfigure MSI-X capability structure */
8941         pci_disable_msix(phba->pcidev);
8942
8943 vec_fail_out:
8944         return rc;
8945 }
8946
8947 /**
8948  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8949  * @phba: pointer to lpfc hba data structure.
8950  *
8951  * This routine is invoked to release the MSI-X vectors and then disable the
8952  * MSI-X interrupt mode to device with SLI-4 interface spec.
8953  **/
8954 static void
8955 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8956 {
8957         int index;
8958
8959         /* Free up MSI-X multi-message vectors */
8960         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8961                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8962                                           vector, NULL);
8963                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8964                          &phba->sli4_hba.fcp_eq_hdl[index]);
8965         }
8966         if (phba->cfg_fof) {
8967                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8968                          &phba->sli4_hba.fcp_eq_hdl[index]);
8969         }
8970         /* Disable MSI-X */
8971         pci_disable_msix(phba->pcidev);
8972
8973         return;
8974 }
8975
8976 /**
8977  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8978  * @phba: pointer to lpfc hba data structure.
8979  *
8980  * This routine is invoked to enable the MSI interrupt mode to device with
8981  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8982  * to enable the MSI vector. The device driver is responsible for calling
8983  * the request_irq() to register MSI vector with a interrupt the handler,
8984  * which is done in this function.
8985  *
8986  * Return codes
8987  *      0 - successful
8988  *      other values - error
8989  **/
8990 static int
8991 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8992 {
8993         int rc, index;
8994
8995         rc = pci_enable_msi(phba->pcidev);
8996         if (!rc)
8997                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8998                                 "0487 PCI enable MSI mode success.\n");
8999         else {
9000                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9001                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9002                 return rc;
9003         }
9004
9005         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9006                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9007         if (rc) {
9008                 pci_disable_msi(phba->pcidev);
9009                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9010                                 "0490 MSI request_irq failed (%d)\n", rc);
9011                 return rc;
9012         }
9013
9014         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9015                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9016                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9017         }
9018
9019         if (phba->cfg_fof) {
9020                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9021                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9022         }
9023         return 0;
9024 }
9025
9026 /**
9027  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9028  * @phba: pointer to lpfc hba data structure.
9029  *
9030  * This routine is invoked to disable the MSI interrupt mode to device with
9031  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9032  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9033  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9034  * its vector.
9035  **/
9036 static void
9037 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9038 {
9039         free_irq(phba->pcidev->irq, phba);
9040         pci_disable_msi(phba->pcidev);
9041         return;
9042 }
9043
9044 /**
9045  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9046  * @phba: pointer to lpfc hba data structure.
9047  *
9048  * This routine is invoked to enable device interrupt and associate driver's
9049  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9050  * interface spec. Depends on the interrupt mode configured to the driver,
9051  * the driver will try to fallback from the configured interrupt mode to an
9052  * interrupt mode which is supported by the platform, kernel, and device in
9053  * the order of:
9054  * MSI-X -> MSI -> IRQ.
9055  *
9056  * Return codes
9057  *      0 - successful
9058  *      other values - error
9059  **/
9060 static uint32_t
9061 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9062 {
9063         uint32_t intr_mode = LPFC_INTR_ERROR;
9064         int retval, index;
9065
9066         if (cfg_mode == 2) {
9067                 /* Preparation before conf_msi mbox cmd */
9068                 retval = 0;
9069                 if (!retval) {
9070                         /* Now, try to enable MSI-X interrupt mode */
9071                         retval = lpfc_sli4_enable_msix(phba);
9072                         if (!retval) {
9073                                 /* Indicate initialization to MSI-X mode */
9074                                 phba->intr_type = MSIX;
9075                                 intr_mode = 2;
9076                         }
9077                 }
9078         }
9079
9080         /* Fallback to MSI if MSI-X initialization failed */
9081         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9082                 retval = lpfc_sli4_enable_msi(phba);
9083                 if (!retval) {
9084                         /* Indicate initialization to MSI mode */
9085                         phba->intr_type = MSI;
9086                         intr_mode = 1;
9087                 }
9088         }
9089
9090         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9091         if (phba->intr_type == NONE) {
9092                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9093                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9094                 if (!retval) {
9095                         /* Indicate initialization to INTx mode */
9096                         phba->intr_type = INTx;
9097                         intr_mode = 0;
9098                         for (index = 0; index < phba->cfg_fcp_io_channel;
9099                              index++) {
9100                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9101                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9102                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9103                                         fcp_eq_in_use, 1);
9104                         }
9105                         if (phba->cfg_fof) {
9106                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9107                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9108                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9109                                         fcp_eq_in_use, 1);
9110                         }
9111                 }
9112         }
9113         return intr_mode;
9114 }
9115
9116 /**
9117  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9118  * @phba: pointer to lpfc hba data structure.
9119  *
9120  * This routine is invoked to disable device interrupt and disassociate
9121  * the driver's interrupt handler(s) from interrupt vector(s) to device
9122  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9123  * will release the interrupt vector(s) for the message signaled interrupt.
9124  **/
9125 static void
9126 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9127 {
9128         /* Disable the currently initialized interrupt mode */
9129         if (phba->intr_type == MSIX)
9130                 lpfc_sli4_disable_msix(phba);
9131         else if (phba->intr_type == MSI)
9132                 lpfc_sli4_disable_msi(phba);
9133         else if (phba->intr_type == INTx)
9134                 free_irq(phba->pcidev->irq, phba);
9135
9136         /* Reset interrupt management states */
9137         phba->intr_type = NONE;
9138         phba->sli.slistat.sli_intr = 0;
9139
9140         return;
9141 }
9142
9143 /**
9144  * lpfc_unset_hba - Unset SLI3 hba device initialization
9145  * @phba: pointer to lpfc hba data structure.
9146  *
9147  * This routine is invoked to unset the HBA device initialization steps to
9148  * a device with SLI-3 interface spec.
9149  **/
9150 static void
9151 lpfc_unset_hba(struct lpfc_hba *phba)
9152 {
9153         struct lpfc_vport *vport = phba->pport;
9154         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9155
9156         spin_lock_irq(shost->host_lock);
9157         vport->load_flag |= FC_UNLOADING;
9158         spin_unlock_irq(shost->host_lock);
9159
9160         kfree(phba->vpi_bmask);
9161         kfree(phba->vpi_ids);
9162
9163         lpfc_stop_hba_timers(phba);
9164
9165         phba->pport->work_port_events = 0;
9166
9167         lpfc_sli_hba_down(phba);
9168
9169         lpfc_sli_brdrestart(phba);
9170
9171         lpfc_sli_disable_intr(phba);
9172
9173         return;
9174 }
9175
9176 /**
9177  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9178  * @phba: Pointer to HBA context object.
9179  *
9180  * This function is called in the SLI4 code path to wait for completion
9181  * of device's XRIs exchange busy. It will check the XRI exchange busy
9182  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9183  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9184  * I/Os every 30 seconds, log error message, and wait forever. Only when
9185  * all XRI exchange busy complete, the driver unload shall proceed with
9186  * invoking the function reset ioctl mailbox command to the CNA and the
9187  * the rest of the driver unload resource release.
9188  **/
9189 static void
9190 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9191 {
9192         int wait_time = 0;
9193         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9194         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9195
9196         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9197                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9198                         if (!fcp_xri_cmpl)
9199                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9200                                                 "2877 FCP XRI exchange busy "
9201                                                 "wait time: %d seconds.\n",
9202                                                 wait_time/1000);
9203                         if (!els_xri_cmpl)
9204                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9205                                                 "2878 ELS XRI exchange busy "
9206                                                 "wait time: %d seconds.\n",
9207                                                 wait_time/1000);
9208                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9209                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9210                 } else {
9211                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9212                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9213                 }
9214                 fcp_xri_cmpl =
9215                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9216                 els_xri_cmpl =
9217                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9218         }
9219 }
9220
9221 /**
9222  * lpfc_sli4_hba_unset - Unset the fcoe hba
9223  * @phba: Pointer to HBA context object.
9224  *
9225  * This function is called in the SLI4 code path to reset the HBA's FCoE
9226  * function. The caller is not required to hold any lock. This routine
9227  * issues PCI function reset mailbox command to reset the FCoE function.
9228  * At the end of the function, it calls lpfc_hba_down_post function to
9229  * free any pending commands.
9230  **/
9231 static void
9232 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9233 {
9234         int wait_cnt = 0;
9235         LPFC_MBOXQ_t *mboxq;
9236         struct pci_dev *pdev = phba->pcidev;
9237
9238         lpfc_stop_hba_timers(phba);
9239         phba->sli4_hba.intr_enable = 0;
9240
9241         /*
9242          * Gracefully wait out the potential current outstanding asynchronous
9243          * mailbox command.
9244          */
9245
9246         /* First, block any pending async mailbox command from posted */
9247         spin_lock_irq(&phba->hbalock);
9248         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9249         spin_unlock_irq(&phba->hbalock);
9250         /* Now, trying to wait it out if we can */
9251         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9252                 msleep(10);
9253                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9254                         break;
9255         }
9256         /* Forcefully release the outstanding mailbox command if timed out */
9257         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9258                 spin_lock_irq(&phba->hbalock);
9259                 mboxq = phba->sli.mbox_active;
9260                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9261                 __lpfc_mbox_cmpl_put(phba, mboxq);
9262                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9263                 phba->sli.mbox_active = NULL;
9264                 spin_unlock_irq(&phba->hbalock);
9265         }
9266
9267         /* Abort all iocbs associated with the hba */
9268         lpfc_sli_hba_iocb_abort(phba);
9269
9270         /* Wait for completion of device XRI exchange busy */
9271         lpfc_sli4_xri_exchange_busy_wait(phba);
9272
9273         /* Disable PCI subsystem interrupt */
9274         lpfc_sli4_disable_intr(phba);
9275
9276         /* Disable SR-IOV if enabled */
9277         if (phba->cfg_sriov_nr_virtfn)
9278                 pci_disable_sriov(pdev);
9279
9280         /* Stop kthread signal shall trigger work_done one more time */
9281         kthread_stop(phba->worker_thread);
9282
9283         /* Reset SLI4 HBA FCoE function */
9284         lpfc_pci_function_reset(phba);
9285         lpfc_sli4_queue_destroy(phba);
9286
9287         /* Stop the SLI4 device port */
9288         phba->pport->work_port_events = 0;
9289 }
9290
9291  /**
9292  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9293  * @phba: Pointer to HBA context object.
9294  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9295  *
9296  * This function is called in the SLI4 code path to read the port's
9297  * sli4 capabilities.
9298  *
9299  * This function may be be called from any context that can block-wait
9300  * for the completion.  The expectation is that this routine is called
9301  * typically from probe_one or from the online routine.
9302  **/
9303 int
9304 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9305 {
9306         int rc;
9307         struct lpfc_mqe *mqe;
9308         struct lpfc_pc_sli4_params *sli4_params;
9309         uint32_t mbox_tmo;
9310
9311         rc = 0;
9312         mqe = &mboxq->u.mqe;
9313
9314         /* Read the port's SLI4 Parameters port capabilities */
9315         lpfc_pc_sli4_params(mboxq);
9316         if (!phba->sli4_hba.intr_enable)
9317                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9318         else {
9319                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9320                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9321         }
9322
9323         if (unlikely(rc))
9324                 return 1;
9325
9326         sli4_params = &phba->sli4_hba.pc_sli4_params;
9327         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9328         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9329         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9330         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9331                                              &mqe->un.sli4_params);
9332         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9333                                              &mqe->un.sli4_params);
9334         sli4_params->proto_types = mqe->un.sli4_params.word3;
9335         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9336         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9337         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9338         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9339         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9340         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9341         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9342         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9343         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9344         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9345         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9346         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9347         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9348         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9349         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9350         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9351         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9352         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9353         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9354         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9355
9356         /* Make sure that sge_supp_len can be handled by the driver */
9357         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9358                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9359
9360         return rc;
9361 }
9362
9363 /**
9364  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9365  * @phba: Pointer to HBA context object.
9366  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9367  *
9368  * This function is called in the SLI4 code path to read the port's
9369  * sli4 capabilities.
9370  *
9371  * This function may be be called from any context that can block-wait
9372  * for the completion.  The expectation is that this routine is called
9373  * typically from probe_one or from the online routine.
9374  **/
9375 int
9376 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9377 {
9378         int rc;
9379         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9380         struct lpfc_pc_sli4_params *sli4_params;
9381         uint32_t mbox_tmo;
9382         int length;
9383         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9384
9385         /*
9386          * By default, the driver assumes the SLI4 port requires RPI
9387          * header postings.  The SLI4_PARAM response will correct this
9388          * assumption.
9389          */
9390         phba->sli4_hba.rpi_hdrs_in_use = 1;
9391
9392         /* Read the port's SLI4 Config Parameters */
9393         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9394                   sizeof(struct lpfc_sli4_cfg_mhdr));
9395         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9396                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9397                          length, LPFC_SLI4_MBX_EMBED);
9398         if (!phba->sli4_hba.intr_enable)
9399                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9400         else {
9401                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9402                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9403         }
9404         if (unlikely(rc))
9405                 return rc;
9406         sli4_params = &phba->sli4_hba.pc_sli4_params;
9407         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9408         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9409         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9410         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9411         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9412                                              mbx_sli4_parameters);
9413         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9414                                              mbx_sli4_parameters);
9415         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9416                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9417         else
9418                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9419         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9420         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9421         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9422         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9423         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9424         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9425         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9426         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9427         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9428                                             mbx_sli4_parameters);
9429         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9430                                            mbx_sli4_parameters);
9431         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9432         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9433
9434         /* Make sure that sge_supp_len can be handled by the driver */
9435         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9436                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9437
9438         return 0;
9439 }
9440
9441 /**
9442  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9443  * @pdev: pointer to PCI device
9444  * @pid: pointer to PCI device identifier
9445  *
9446  * This routine is to be called to attach a device with SLI-3 interface spec
9447  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9448  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9449  * information of the device and driver to see if the driver state that it can
9450  * support this kind of device. If the match is successful, the driver core
9451  * invokes this routine. If this routine determines it can claim the HBA, it
9452  * does all the initialization that it needs to do to handle the HBA properly.
9453  *
9454  * Return code
9455  *      0 - driver can claim the device
9456  *      negative value - driver can not claim the device
9457  **/
9458 static int
9459 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9460 {
9461         struct lpfc_hba   *phba;
9462         struct lpfc_vport *vport = NULL;
9463         struct Scsi_Host  *shost = NULL;
9464         int error;
9465         uint32_t cfg_mode, intr_mode;
9466
9467         /* Allocate memory for HBA structure */
9468         phba = lpfc_hba_alloc(pdev);
9469         if (!phba)
9470                 return -ENOMEM;
9471
9472         /* Perform generic PCI device enabling operation */
9473         error = lpfc_enable_pci_dev(phba);
9474         if (error)
9475                 goto out_free_phba;
9476
9477         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9478         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9479         if (error)
9480                 goto out_disable_pci_dev;
9481
9482         /* Set up SLI-3 specific device PCI memory space */
9483         error = lpfc_sli_pci_mem_setup(phba);
9484         if (error) {
9485                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9486                                 "1402 Failed to set up pci memory space.\n");
9487                 goto out_disable_pci_dev;
9488         }
9489
9490         /* Set up phase-1 common device driver resources */
9491         error = lpfc_setup_driver_resource_phase1(phba);
9492         if (error) {
9493                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9494                                 "1403 Failed to set up driver resource.\n");
9495                 goto out_unset_pci_mem_s3;
9496         }
9497
9498         /* Set up SLI-3 specific device driver resources */
9499         error = lpfc_sli_driver_resource_setup(phba);
9500         if (error) {
9501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9502                                 "1404 Failed to set up driver resource.\n");
9503                 goto out_unset_pci_mem_s3;
9504         }
9505
9506         /* Initialize and populate the iocb list per host */
9507         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9508         if (error) {
9509                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9510                                 "1405 Failed to initialize iocb list.\n");
9511                 goto out_unset_driver_resource_s3;
9512         }
9513
9514         /* Set up common device driver resources */
9515         error = lpfc_setup_driver_resource_phase2(phba);
9516         if (error) {
9517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9518                                 "1406 Failed to set up driver resource.\n");
9519                 goto out_free_iocb_list;
9520         }
9521
9522         /* Get the default values for Model Name and Description */
9523         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9524
9525         /* Create SCSI host to the physical port */
9526         error = lpfc_create_shost(phba);
9527         if (error) {
9528                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9529                                 "1407 Failed to create scsi host.\n");
9530                 goto out_unset_driver_resource;
9531         }
9532
9533         /* Configure sysfs attributes */
9534         vport = phba->pport;
9535         error = lpfc_alloc_sysfs_attr(vport);
9536         if (error) {
9537                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9538                                 "1476 Failed to allocate sysfs attr\n");
9539                 goto out_destroy_shost;
9540         }
9541
9542         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9543         /* Now, trying to enable interrupt and bring up the device */
9544         cfg_mode = phba->cfg_use_msi;
9545         while (true) {
9546                 /* Put device to a known state before enabling interrupt */
9547                 lpfc_stop_port(phba);
9548                 /* Configure and enable interrupt */
9549                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9550                 if (intr_mode == LPFC_INTR_ERROR) {
9551                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9552                                         "0431 Failed to enable interrupt.\n");
9553                         error = -ENODEV;
9554                         goto out_free_sysfs_attr;
9555                 }
9556                 /* SLI-3 HBA setup */
9557                 if (lpfc_sli_hba_setup(phba)) {
9558                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9559                                         "1477 Failed to set up hba\n");
9560                         error = -ENODEV;
9561                         goto out_remove_device;
9562                 }
9563
9564                 /* Wait 50ms for the interrupts of previous mailbox commands */
9565                 msleep(50);
9566                 /* Check active interrupts on message signaled interrupts */
9567                 if (intr_mode == 0 ||
9568                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9569                         /* Log the current active interrupt mode */
9570                         phba->intr_mode = intr_mode;
9571                         lpfc_log_intr_mode(phba, intr_mode);
9572                         break;
9573                 } else {
9574                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9575                                         "0447 Configure interrupt mode (%d) "
9576                                         "failed active interrupt test.\n",
9577                                         intr_mode);
9578                         /* Disable the current interrupt mode */
9579                         lpfc_sli_disable_intr(phba);
9580                         /* Try next level of interrupt mode */
9581                         cfg_mode = --intr_mode;
9582                 }
9583         }
9584
9585         /* Perform post initialization setup */
9586         lpfc_post_init_setup(phba);
9587
9588         /* Check if there are static vports to be created. */
9589         lpfc_create_static_vport(phba);
9590
9591         return 0;
9592
9593 out_remove_device:
9594         lpfc_unset_hba(phba);
9595 out_free_sysfs_attr:
9596         lpfc_free_sysfs_attr(vport);
9597 out_destroy_shost:
9598         lpfc_destroy_shost(phba);
9599 out_unset_driver_resource:
9600         lpfc_unset_driver_resource_phase2(phba);
9601 out_free_iocb_list:
9602         lpfc_free_iocb_list(phba);
9603 out_unset_driver_resource_s3:
9604         lpfc_sli_driver_resource_unset(phba);
9605 out_unset_pci_mem_s3:
9606         lpfc_sli_pci_mem_unset(phba);
9607 out_disable_pci_dev:
9608         lpfc_disable_pci_dev(phba);
9609         if (shost)
9610                 scsi_host_put(shost);
9611 out_free_phba:
9612         lpfc_hba_free(phba);
9613         return error;
9614 }
9615
9616 /**
9617  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9618  * @pdev: pointer to PCI device
9619  *
9620  * This routine is to be called to disattach a device with SLI-3 interface
9621  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9622  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9623  * device to be removed from the PCI subsystem properly.
9624  **/
9625 static void
9626 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9627 {
9628         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9629         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9630         struct lpfc_vport **vports;
9631         struct lpfc_hba   *phba = vport->phba;
9632         int i;
9633         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9634
9635         spin_lock_irq(&phba->hbalock);
9636         vport->load_flag |= FC_UNLOADING;
9637         spin_unlock_irq(&phba->hbalock);
9638
9639         lpfc_free_sysfs_attr(vport);
9640
9641         /* Release all the vports against this physical port */
9642         vports = lpfc_create_vport_work_array(phba);
9643         if (vports != NULL)
9644                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9645                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9646                                 continue;
9647                         fc_vport_terminate(vports[i]->fc_vport);
9648                 }
9649         lpfc_destroy_vport_work_array(phba, vports);
9650
9651         /* Remove FC host and then SCSI host with the physical port */
9652         fc_remove_host(shost);
9653         scsi_remove_host(shost);
9654         lpfc_cleanup(vport);
9655
9656         /*
9657          * Bring down the SLI Layer. This step disable all interrupts,
9658          * clears the rings, discards all mailbox commands, and resets
9659          * the HBA.
9660          */
9661
9662         /* HBA interrupt will be disabled after this call */
9663         lpfc_sli_hba_down(phba);
9664         /* Stop kthread signal shall trigger work_done one more time */
9665         kthread_stop(phba->worker_thread);
9666         /* Final cleanup of txcmplq and reset the HBA */
9667         lpfc_sli_brdrestart(phba);
9668
9669         kfree(phba->vpi_bmask);
9670         kfree(phba->vpi_ids);
9671
9672         lpfc_stop_hba_timers(phba);
9673         spin_lock_irq(&phba->hbalock);
9674         list_del_init(&vport->listentry);
9675         spin_unlock_irq(&phba->hbalock);
9676
9677         lpfc_debugfs_terminate(vport);
9678
9679         /* Disable SR-IOV if enabled */
9680         if (phba->cfg_sriov_nr_virtfn)
9681                 pci_disable_sriov(pdev);
9682
9683         /* Disable interrupt */
9684         lpfc_sli_disable_intr(phba);
9685
9686         scsi_host_put(shost);
9687
9688         /*
9689          * Call scsi_free before mem_free since scsi bufs are released to their
9690          * corresponding pools here.
9691          */
9692         lpfc_scsi_free(phba);
9693         lpfc_mem_free_all(phba);
9694
9695         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9696                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9697
9698         /* Free resources associated with SLI2 interface */
9699         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9700                           phba->slim2p.virt, phba->slim2p.phys);
9701
9702         /* unmap adapter SLIM and Control Registers */
9703         iounmap(phba->ctrl_regs_memmap_p);
9704         iounmap(phba->slim_memmap_p);
9705
9706         lpfc_hba_free(phba);
9707
9708         pci_release_selected_regions(pdev, bars);
9709         pci_disable_device(pdev);
9710 }
9711
9712 /**
9713  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9714  * @pdev: pointer to PCI device
9715  * @msg: power management message
9716  *
9717  * This routine is to be called from the kernel's PCI subsystem to support
9718  * system Power Management (PM) to device with SLI-3 interface spec. When
9719  * PM invokes this method, it quiesces the device by stopping the driver's
9720  * worker thread for the device, turning off device's interrupt and DMA,
9721  * and bring the device offline. Note that as the driver implements the
9722  * minimum PM requirements to a power-aware driver's PM support for the
9723  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9724  * to the suspend() method call will be treated as SUSPEND and the driver will
9725  * fully reinitialize its device during resume() method call, the driver will
9726  * set device to PCI_D3hot state in PCI config space instead of setting it
9727  * according to the @msg provided by the PM.
9728  *
9729  * Return code
9730  *      0 - driver suspended the device
9731  *      Error otherwise
9732  **/
9733 static int
9734 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9735 {
9736         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9737         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9738
9739         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9740                         "0473 PCI device Power Management suspend.\n");
9741
9742         /* Bring down the device */
9743         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9744         lpfc_offline(phba);
9745         kthread_stop(phba->worker_thread);
9746
9747         /* Disable interrupt from device */
9748         lpfc_sli_disable_intr(phba);
9749
9750         /* Save device state to PCI config space */
9751         pci_save_state(pdev);
9752         pci_set_power_state(pdev, PCI_D3hot);
9753
9754         return 0;
9755 }
9756
9757 /**
9758  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9759  * @pdev: pointer to PCI device
9760  *
9761  * This routine is to be called from the kernel's PCI subsystem to support
9762  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9763  * invokes this method, it restores the device's PCI config space state and
9764  * fully reinitializes the device and brings it online. Note that as the
9765  * driver implements the minimum PM requirements to a power-aware driver's
9766  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9767  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9768  * driver will fully reinitialize its device during resume() method call,
9769  * the device will be set to PCI_D0 directly in PCI config space before
9770  * restoring the state.
9771  *
9772  * Return code
9773  *      0 - driver suspended the device
9774  *      Error otherwise
9775  **/
9776 static int
9777 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9778 {
9779         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9780         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9781         uint32_t intr_mode;
9782         int error;
9783
9784         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9785                         "0452 PCI device Power Management resume.\n");
9786
9787         /* Restore device state from PCI config space */
9788         pci_set_power_state(pdev, PCI_D0);
9789         pci_restore_state(pdev);
9790
9791         /*
9792          * As the new kernel behavior of pci_restore_state() API call clears
9793          * device saved_state flag, need to save the restored state again.
9794          */
9795         pci_save_state(pdev);
9796
9797         if (pdev->is_busmaster)
9798                 pci_set_master(pdev);
9799
9800         /* Startup the kernel thread for this host adapter. */
9801         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9802                                         "lpfc_worker_%d", phba->brd_no);
9803         if (IS_ERR(phba->worker_thread)) {
9804                 error = PTR_ERR(phba->worker_thread);
9805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9806                                 "0434 PM resume failed to start worker "
9807                                 "thread: error=x%x.\n", error);
9808                 return error;
9809         }
9810
9811         /* Configure and enable interrupt */
9812         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9813         if (intr_mode == LPFC_INTR_ERROR) {
9814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9815                                 "0430 PM resume Failed to enable interrupt\n");
9816                 return -EIO;
9817         } else
9818                 phba->intr_mode = intr_mode;
9819
9820         /* Restart HBA and bring it online */
9821         lpfc_sli_brdrestart(phba);
9822         lpfc_online(phba);
9823
9824         /* Log the current active interrupt mode */
9825         lpfc_log_intr_mode(phba, phba->intr_mode);
9826
9827         return 0;
9828 }
9829
9830 /**
9831  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9832  * @phba: pointer to lpfc hba data structure.
9833  *
9834  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9835  * aborts all the outstanding SCSI I/Os to the pci device.
9836  **/
9837 static void
9838 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9839 {
9840         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9841                         "2723 PCI channel I/O abort preparing for recovery\n");
9842
9843         /*
9844          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9845          * and let the SCSI mid-layer to retry them to recover.
9846          */
9847         lpfc_sli_abort_fcp_rings(phba);
9848 }
9849
9850 /**
9851  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9852  * @phba: pointer to lpfc hba data structure.
9853  *
9854  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9855  * disables the device interrupt and pci device, and aborts the internal FCP
9856  * pending I/Os.
9857  **/
9858 static void
9859 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9860 {
9861         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9862                         "2710 PCI channel disable preparing for reset\n");
9863
9864         /* Block any management I/Os to the device */
9865         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9866
9867         /* Block all SCSI devices' I/Os on the host */
9868         lpfc_scsi_dev_block(phba);
9869
9870         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9871         lpfc_sli_flush_fcp_rings(phba);
9872
9873         /* stop all timers */
9874         lpfc_stop_hba_timers(phba);
9875
9876         /* Disable interrupt and pci device */
9877         lpfc_sli_disable_intr(phba);
9878         pci_disable_device(phba->pcidev);
9879 }
9880
9881 /**
9882  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9883  * @phba: pointer to lpfc hba data structure.
9884  *
9885  * This routine is called to prepare the SLI3 device for PCI slot permanently
9886  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9887  * pending I/Os.
9888  **/
9889 static void
9890 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9891 {
9892         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9893                         "2711 PCI channel permanent disable for failure\n");
9894         /* Block all SCSI devices' I/Os on the host */
9895         lpfc_scsi_dev_block(phba);
9896
9897         /* stop all timers */
9898         lpfc_stop_hba_timers(phba);
9899
9900         /* Clean up all driver's outstanding SCSI I/Os */
9901         lpfc_sli_flush_fcp_rings(phba);
9902 }
9903
9904 /**
9905  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9906  * @pdev: pointer to PCI device.
9907  * @state: the current PCI connection state.
9908  *
9909  * This routine is called from the PCI subsystem for I/O error handling to
9910  * device with SLI-3 interface spec. This function is called by the PCI
9911  * subsystem after a PCI bus error affecting this device has been detected.
9912  * When this function is invoked, it will need to stop all the I/Os and
9913  * interrupt(s) to the device. Once that is done, it will return
9914  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9915  * as desired.
9916  *
9917  * Return codes
9918  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9919  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9920  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9921  **/
9922 static pci_ers_result_t
9923 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9924 {
9925         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9926         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9927
9928         switch (state) {
9929         case pci_channel_io_normal:
9930                 /* Non-fatal error, prepare for recovery */
9931                 lpfc_sli_prep_dev_for_recover(phba);
9932                 return PCI_ERS_RESULT_CAN_RECOVER;
9933         case pci_channel_io_frozen:
9934                 /* Fatal error, prepare for slot reset */
9935                 lpfc_sli_prep_dev_for_reset(phba);
9936                 return PCI_ERS_RESULT_NEED_RESET;
9937         case pci_channel_io_perm_failure:
9938                 /* Permanent failure, prepare for device down */
9939                 lpfc_sli_prep_dev_for_perm_failure(phba);
9940                 return PCI_ERS_RESULT_DISCONNECT;
9941         default:
9942                 /* Unknown state, prepare and request slot reset */
9943                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9944                                 "0472 Unknown PCI error state: x%x\n", state);
9945                 lpfc_sli_prep_dev_for_reset(phba);
9946                 return PCI_ERS_RESULT_NEED_RESET;
9947         }
9948 }
9949
9950 /**
9951  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9952  * @pdev: pointer to PCI device.
9953  *
9954  * This routine is called from the PCI subsystem for error handling to
9955  * device with SLI-3 interface spec. This is called after PCI bus has been
9956  * reset to restart the PCI card from scratch, as if from a cold-boot.
9957  * During the PCI subsystem error recovery, after driver returns
9958  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9959  * recovery and then call this routine before calling the .resume method
9960  * to recover the device. This function will initialize the HBA device,
9961  * enable the interrupt, but it will just put the HBA to offline state
9962  * without passing any I/O traffic.
9963  *
9964  * Return codes
9965  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9966  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9967  */
9968 static pci_ers_result_t
9969 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9970 {
9971         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9972         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9973         struct lpfc_sli *psli = &phba->sli;
9974         uint32_t intr_mode;
9975
9976         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9977         if (pci_enable_device_mem(pdev)) {
9978                 printk(KERN_ERR "lpfc: Cannot re-enable "
9979                         "PCI device after reset.\n");
9980                 return PCI_ERS_RESULT_DISCONNECT;
9981         }
9982
9983         pci_restore_state(pdev);
9984
9985         /*
9986          * As the new kernel behavior of pci_restore_state() API call clears
9987          * device saved_state flag, need to save the restored state again.
9988          */
9989         pci_save_state(pdev);
9990
9991         if (pdev->is_busmaster)
9992                 pci_set_master(pdev);
9993
9994         spin_lock_irq(&phba->hbalock);
9995         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9996         spin_unlock_irq(&phba->hbalock);
9997
9998         /* Configure and enable interrupt */
9999         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10000         if (intr_mode == LPFC_INTR_ERROR) {
10001                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10002                                 "0427 Cannot re-enable interrupt after "
10003                                 "slot reset.\n");
10004                 return PCI_ERS_RESULT_DISCONNECT;
10005         } else
10006                 phba->intr_mode = intr_mode;
10007
10008         /* Take device offline, it will perform cleanup */
10009         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10010         lpfc_offline(phba);
10011         lpfc_sli_brdrestart(phba);
10012
10013         /* Log the current active interrupt mode */
10014         lpfc_log_intr_mode(phba, phba->intr_mode);
10015
10016         return PCI_ERS_RESULT_RECOVERED;
10017 }
10018
10019 /**
10020  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10021  * @pdev: pointer to PCI device
10022  *
10023  * This routine is called from the PCI subsystem for error handling to device
10024  * with SLI-3 interface spec. It is called when kernel error recovery tells
10025  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10026  * error recovery. After this call, traffic can start to flow from this device
10027  * again.
10028  */
10029 static void
10030 lpfc_io_resume_s3(struct pci_dev *pdev)
10031 {
10032         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10033         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10034
10035         /* Bring device online, it will be no-op for non-fatal error resume */
10036         lpfc_online(phba);
10037
10038         /* Clean up Advanced Error Reporting (AER) if needed */
10039         if (phba->hba_flag & HBA_AER_ENABLED)
10040                 pci_cleanup_aer_uncorrect_error_status(pdev);
10041 }
10042
10043 /**
10044  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10045  * @phba: pointer to lpfc hba data structure.
10046  *
10047  * returns the number of ELS/CT IOCBs to reserve
10048  **/
10049 int
10050 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10051 {
10052         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10053
10054         if (phba->sli_rev == LPFC_SLI_REV4) {
10055                 if (max_xri <= 100)
10056                         return 10;
10057                 else if (max_xri <= 256)
10058                         return 25;
10059                 else if (max_xri <= 512)
10060                         return 50;
10061                 else if (max_xri <= 1024)
10062                         return 100;
10063                 else if (max_xri <= 1536)
10064                         return 150;
10065                 else if (max_xri <= 2048)
10066                         return 200;
10067                 else
10068                         return 250;
10069         } else
10070                 return 0;
10071 }
10072
10073 /**
10074  * lpfc_write_firmware - attempt to write a firmware image to the port
10075  * @fw: pointer to firmware image returned from request_firmware.
10076  * @phba: pointer to lpfc hba data structure.
10077  *
10078  **/
10079 static void
10080 lpfc_write_firmware(const struct firmware *fw, void *context)
10081 {
10082         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10083         char fwrev[FW_REV_STR_SIZE];
10084         struct lpfc_grp_hdr *image;
10085         struct list_head dma_buffer_list;
10086         int i, rc = 0;
10087         struct lpfc_dmabuf *dmabuf, *next;
10088         uint32_t offset = 0, temp_offset = 0;
10089
10090         /* It can be null in no-wait mode, sanity check */
10091         if (!fw) {
10092                 rc = -ENXIO;
10093                 goto out;
10094         }
10095         image = (struct lpfc_grp_hdr *)fw->data;
10096
10097         INIT_LIST_HEAD(&dma_buffer_list);
10098         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10099             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10100              LPFC_FILE_TYPE_GROUP) ||
10101             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10102             (be32_to_cpu(image->size) != fw->size)) {
10103                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10104                                 "3022 Invalid FW image found. "
10105                                 "Magic:%x Type:%x ID:%x\n",
10106                                 be32_to_cpu(image->magic_number),
10107                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10108                                 bf_get_be32(lpfc_grp_hdr_id, image));
10109                 rc = -EINVAL;
10110                 goto release_out;
10111         }
10112         lpfc_decode_firmware_rev(phba, fwrev, 1);
10113         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10114                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10115                                 "3023 Updating Firmware, Current Version:%s "
10116                                 "New Version:%s\n",
10117                                 fwrev, image->revision);
10118                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10119                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10120                                          GFP_KERNEL);
10121                         if (!dmabuf) {
10122                                 rc = -ENOMEM;
10123                                 goto release_out;
10124                         }
10125                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10126                                                           SLI4_PAGE_SIZE,
10127                                                           &dmabuf->phys,
10128                                                           GFP_KERNEL);
10129                         if (!dmabuf->virt) {
10130                                 kfree(dmabuf);
10131                                 rc = -ENOMEM;
10132                                 goto release_out;
10133                         }
10134                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10135                 }
10136                 while (offset < fw->size) {
10137                         temp_offset = offset;
10138                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10139                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10140                                         memcpy(dmabuf->virt,
10141                                                fw->data + temp_offset,
10142                                                fw->size - temp_offset);
10143                                         temp_offset = fw->size;
10144                                         break;
10145                                 }
10146                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10147                                        SLI4_PAGE_SIZE);
10148                                 temp_offset += SLI4_PAGE_SIZE;
10149                         }
10150                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10151                                     (fw->size - offset), &offset);
10152                         if (rc)
10153                                 goto release_out;
10154                 }
10155                 rc = offset;
10156         }
10157
10158 release_out:
10159         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10160                 list_del(&dmabuf->list);
10161                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10162                                   dmabuf->virt, dmabuf->phys);
10163                 kfree(dmabuf);
10164         }
10165         release_firmware(fw);
10166 out:
10167         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10168                         "3024 Firmware update done: %d.\n", rc);
10169         return;
10170 }
10171
10172 /**
10173  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10174  * @phba: pointer to lpfc hba data structure.
10175  *
10176  * This routine is called to perform Linux generic firmware upgrade on device
10177  * that supports such feature.
10178  **/
10179 int
10180 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10181 {
10182         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10183         int ret;
10184         const struct firmware *fw;
10185
10186         /* Only supported on SLI4 interface type 2 for now */
10187         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10188             LPFC_SLI_INTF_IF_TYPE_2)
10189                 return -EPERM;
10190
10191         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10192
10193         if (fw_upgrade == INT_FW_UPGRADE) {
10194                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10195                                         file_name, &phba->pcidev->dev,
10196                                         GFP_KERNEL, (void *)phba,
10197                                         lpfc_write_firmware);
10198         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10199                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10200                 if (!ret)
10201                         lpfc_write_firmware(fw, (void *)phba);
10202         } else {
10203                 ret = -EINVAL;
10204         }
10205
10206         return ret;
10207 }
10208
10209 /**
10210  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10211  * @pdev: pointer to PCI device
10212  * @pid: pointer to PCI device identifier
10213  *
10214  * This routine is called from the kernel's PCI subsystem to device with
10215  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10216  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10217  * information of the device and driver to see if the driver state that it
10218  * can support this kind of device. If the match is successful, the driver
10219  * core invokes this routine. If this routine determines it can claim the HBA,
10220  * it does all the initialization that it needs to do to handle the HBA
10221  * properly.
10222  *
10223  * Return code
10224  *      0 - driver can claim the device
10225  *      negative value - driver can not claim the device
10226  **/
10227 static int
10228 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10229 {
10230         struct lpfc_hba   *phba;
10231         struct lpfc_vport *vport = NULL;
10232         struct Scsi_Host  *shost = NULL;
10233         int error, ret;
10234         uint32_t cfg_mode, intr_mode;
10235         int adjusted_fcp_io_channel;
10236
10237         /* Allocate memory for HBA structure */
10238         phba = lpfc_hba_alloc(pdev);
10239         if (!phba)
10240                 return -ENOMEM;
10241
10242         /* Perform generic PCI device enabling operation */
10243         error = lpfc_enable_pci_dev(phba);
10244         if (error)
10245                 goto out_free_phba;
10246
10247         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10248         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10249         if (error)
10250                 goto out_disable_pci_dev;
10251
10252         /* Set up SLI-4 specific device PCI memory space */
10253         error = lpfc_sli4_pci_mem_setup(phba);
10254         if (error) {
10255                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10256                                 "1410 Failed to set up pci memory space.\n");
10257                 goto out_disable_pci_dev;
10258         }
10259
10260         /* Set up phase-1 common device driver resources */
10261         error = lpfc_setup_driver_resource_phase1(phba);
10262         if (error) {
10263                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10264                                 "1411 Failed to set up driver resource.\n");
10265                 goto out_unset_pci_mem_s4;
10266         }
10267
10268         /* Set up SLI-4 Specific device driver resources */
10269         error = lpfc_sli4_driver_resource_setup(phba);
10270         if (error) {
10271                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10272                                 "1412 Failed to set up driver resource.\n");
10273                 goto out_unset_pci_mem_s4;
10274         }
10275
10276         /* Initialize and populate the iocb list per host */
10277
10278         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10279                         "2821 initialize iocb list %d.\n",
10280                         phba->cfg_iocb_cnt*1024);
10281         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10282
10283         if (error) {
10284                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10285                                 "1413 Failed to initialize iocb list.\n");
10286                 goto out_unset_driver_resource_s4;
10287         }
10288
10289         INIT_LIST_HEAD(&phba->active_rrq_list);
10290         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10291
10292         /* Set up common device driver resources */
10293         error = lpfc_setup_driver_resource_phase2(phba);
10294         if (error) {
10295                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10296                                 "1414 Failed to set up driver resource.\n");
10297                 goto out_free_iocb_list;
10298         }
10299
10300         /* Get the default values for Model Name and Description */
10301         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10302
10303         /* Create SCSI host to the physical port */
10304         error = lpfc_create_shost(phba);
10305         if (error) {
10306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10307                                 "1415 Failed to create scsi host.\n");
10308                 goto out_unset_driver_resource;
10309         }
10310
10311         /* Configure sysfs attributes */
10312         vport = phba->pport;
10313         error = lpfc_alloc_sysfs_attr(vport);
10314         if (error) {
10315                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10316                                 "1416 Failed to allocate sysfs attr\n");
10317                 goto out_destroy_shost;
10318         }
10319
10320         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10321         /* Now, trying to enable interrupt and bring up the device */
10322         cfg_mode = phba->cfg_use_msi;
10323
10324         /* Put device to a known state before enabling interrupt */
10325         lpfc_stop_port(phba);
10326         /* Configure and enable interrupt */
10327         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10328         if (intr_mode == LPFC_INTR_ERROR) {
10329                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10330                                 "0426 Failed to enable interrupt.\n");
10331                 error = -ENODEV;
10332                 goto out_free_sysfs_attr;
10333         }
10334         /* Default to single EQ for non-MSI-X */
10335         if (phba->intr_type != MSIX)
10336                 adjusted_fcp_io_channel = 1;
10337         else
10338                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10339         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10340         /* Set up SLI-4 HBA */
10341         if (lpfc_sli4_hba_setup(phba)) {
10342                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10343                                 "1421 Failed to set up hba\n");
10344                 error = -ENODEV;
10345                 goto out_disable_intr;
10346         }
10347
10348         /* Log the current active interrupt mode */
10349         phba->intr_mode = intr_mode;
10350         lpfc_log_intr_mode(phba, intr_mode);
10351
10352         /* Perform post initialization setup */
10353         lpfc_post_init_setup(phba);
10354
10355         /* check for firmware upgrade or downgrade */
10356         if (phba->cfg_request_firmware_upgrade)
10357                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10358
10359         /* Check if there are static vports to be created. */
10360         lpfc_create_static_vport(phba);
10361         return 0;
10362
10363 out_disable_intr:
10364         lpfc_sli4_disable_intr(phba);
10365 out_free_sysfs_attr:
10366         lpfc_free_sysfs_attr(vport);
10367 out_destroy_shost:
10368         lpfc_destroy_shost(phba);
10369 out_unset_driver_resource:
10370         lpfc_unset_driver_resource_phase2(phba);
10371 out_free_iocb_list:
10372         lpfc_free_iocb_list(phba);
10373 out_unset_driver_resource_s4:
10374         lpfc_sli4_driver_resource_unset(phba);
10375 out_unset_pci_mem_s4:
10376         lpfc_sli4_pci_mem_unset(phba);
10377 out_disable_pci_dev:
10378         lpfc_disable_pci_dev(phba);
10379         if (shost)
10380                 scsi_host_put(shost);
10381 out_free_phba:
10382         lpfc_hba_free(phba);
10383         return error;
10384 }
10385
10386 /**
10387  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10388  * @pdev: pointer to PCI device
10389  *
10390  * This routine is called from the kernel's PCI subsystem to device with
10391  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10392  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10393  * device to be removed from the PCI subsystem properly.
10394  **/
10395 static void
10396 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10397 {
10398         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10399         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10400         struct lpfc_vport **vports;
10401         struct lpfc_hba *phba = vport->phba;
10402         int i;
10403
10404         /* Mark the device unloading flag */
10405         spin_lock_irq(&phba->hbalock);
10406         vport->load_flag |= FC_UNLOADING;
10407         spin_unlock_irq(&phba->hbalock);
10408
10409         /* Free the HBA sysfs attributes */
10410         lpfc_free_sysfs_attr(vport);
10411
10412         /* Release all the vports against this physical port */
10413         vports = lpfc_create_vport_work_array(phba);
10414         if (vports != NULL)
10415                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10416                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10417                                 continue;
10418                         fc_vport_terminate(vports[i]->fc_vport);
10419                 }
10420         lpfc_destroy_vport_work_array(phba, vports);
10421
10422         /* Remove FC host and then SCSI host with the physical port */
10423         fc_remove_host(shost);
10424         scsi_remove_host(shost);
10425
10426         /* Perform cleanup on the physical port */
10427         lpfc_cleanup(vport);
10428
10429         /*
10430          * Bring down the SLI Layer. This step disables all interrupts,
10431          * clears the rings, discards all mailbox commands, and resets
10432          * the HBA FCoE function.
10433          */
10434         lpfc_debugfs_terminate(vport);
10435         lpfc_sli4_hba_unset(phba);
10436
10437         spin_lock_irq(&phba->hbalock);
10438         list_del_init(&vport->listentry);
10439         spin_unlock_irq(&phba->hbalock);
10440
10441         /* Perform scsi free before driver resource_unset since scsi
10442          * buffers are released to their corresponding pools here.
10443          */
10444         lpfc_scsi_free(phba);
10445
10446         lpfc_sli4_driver_resource_unset(phba);
10447
10448         /* Unmap adapter Control and Doorbell registers */
10449         lpfc_sli4_pci_mem_unset(phba);
10450
10451         /* Release PCI resources and disable device's PCI function */
10452         scsi_host_put(shost);
10453         lpfc_disable_pci_dev(phba);
10454
10455         /* Finally, free the driver's device data structure */
10456         lpfc_hba_free(phba);
10457
10458         return;
10459 }
10460
10461 /**
10462  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10463  * @pdev: pointer to PCI device
10464  * @msg: power management message
10465  *
10466  * This routine is called from the kernel's PCI subsystem to support system
10467  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10468  * this method, it quiesces the device by stopping the driver's worker
10469  * thread for the device, turning off device's interrupt and DMA, and bring
10470  * the device offline. Note that as the driver implements the minimum PM
10471  * requirements to a power-aware driver's PM support for suspend/resume -- all
10472  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10473  * method call will be treated as SUSPEND and the driver will fully
10474  * reinitialize its device during resume() method call, the driver will set
10475  * device to PCI_D3hot state in PCI config space instead of setting it
10476  * according to the @msg provided by the PM.
10477  *
10478  * Return code
10479  *      0 - driver suspended the device
10480  *      Error otherwise
10481  **/
10482 static int
10483 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10484 {
10485         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10486         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10487
10488         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10489                         "2843 PCI device Power Management suspend.\n");
10490
10491         /* Bring down the device */
10492         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10493         lpfc_offline(phba);
10494         kthread_stop(phba->worker_thread);
10495
10496         /* Disable interrupt from device */
10497         lpfc_sli4_disable_intr(phba);
10498         lpfc_sli4_queue_destroy(phba);
10499
10500         /* Save device state to PCI config space */
10501         pci_save_state(pdev);
10502         pci_set_power_state(pdev, PCI_D3hot);
10503
10504         return 0;
10505 }
10506
10507 /**
10508  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10509  * @pdev: pointer to PCI device
10510  *
10511  * This routine is called from the kernel's PCI subsystem to support system
10512  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10513  * this method, it restores the device's PCI config space state and fully
10514  * reinitializes the device and brings it online. Note that as the driver
10515  * implements the minimum PM requirements to a power-aware driver's PM for
10516  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10517  * to the suspend() method call will be treated as SUSPEND and the driver
10518  * will fully reinitialize its device during resume() method call, the device
10519  * will be set to PCI_D0 directly in PCI config space before restoring the
10520  * state.
10521  *
10522  * Return code
10523  *      0 - driver suspended the device
10524  *      Error otherwise
10525  **/
10526 static int
10527 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10528 {
10529         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10530         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10531         uint32_t intr_mode;
10532         int error;
10533
10534         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10535                         "0292 PCI device Power Management resume.\n");
10536
10537         /* Restore device state from PCI config space */
10538         pci_set_power_state(pdev, PCI_D0);
10539         pci_restore_state(pdev);
10540
10541         /*
10542          * As the new kernel behavior of pci_restore_state() API call clears
10543          * device saved_state flag, need to save the restored state again.
10544          */
10545         pci_save_state(pdev);
10546
10547         if (pdev->is_busmaster)
10548                 pci_set_master(pdev);
10549
10550          /* Startup the kernel thread for this host adapter. */
10551         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10552                                         "lpfc_worker_%d", phba->brd_no);
10553         if (IS_ERR(phba->worker_thread)) {
10554                 error = PTR_ERR(phba->worker_thread);
10555                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10556                                 "0293 PM resume failed to start worker "
10557                                 "thread: error=x%x.\n", error);
10558                 return error;
10559         }
10560
10561         /* Configure and enable interrupt */
10562         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10563         if (intr_mode == LPFC_INTR_ERROR) {
10564                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10565                                 "0294 PM resume Failed to enable interrupt\n");
10566                 return -EIO;
10567         } else
10568                 phba->intr_mode = intr_mode;
10569
10570         /* Restart HBA and bring it online */
10571         lpfc_sli_brdrestart(phba);
10572         lpfc_online(phba);
10573
10574         /* Log the current active interrupt mode */
10575         lpfc_log_intr_mode(phba, phba->intr_mode);
10576
10577         return 0;
10578 }
10579
10580 /**
10581  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10582  * @phba: pointer to lpfc hba data structure.
10583  *
10584  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10585  * aborts all the outstanding SCSI I/Os to the pci device.
10586  **/
10587 static void
10588 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10589 {
10590         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10591                         "2828 PCI channel I/O abort preparing for recovery\n");
10592         /*
10593          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10594          * and let the SCSI mid-layer to retry them to recover.
10595          */
10596         lpfc_sli_abort_fcp_rings(phba);
10597 }
10598
10599 /**
10600  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10601  * @phba: pointer to lpfc hba data structure.
10602  *
10603  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10604  * disables the device interrupt and pci device, and aborts the internal FCP
10605  * pending I/Os.
10606  **/
10607 static void
10608 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10609 {
10610         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10611                         "2826 PCI channel disable preparing for reset\n");
10612
10613         /* Block any management I/Os to the device */
10614         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10615
10616         /* Block all SCSI devices' I/Os on the host */
10617         lpfc_scsi_dev_block(phba);
10618
10619         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10620         lpfc_sli_flush_fcp_rings(phba);
10621
10622         /* stop all timers */
10623         lpfc_stop_hba_timers(phba);
10624
10625         /* Disable interrupt and pci device */
10626         lpfc_sli4_disable_intr(phba);
10627         lpfc_sli4_queue_destroy(phba);
10628         pci_disable_device(phba->pcidev);
10629 }
10630
10631 /**
10632  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10633  * @phba: pointer to lpfc hba data structure.
10634  *
10635  * This routine is called to prepare the SLI4 device for PCI slot permanently
10636  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10637  * pending I/Os.
10638  **/
10639 static void
10640 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10641 {
10642         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10643                         "2827 PCI channel permanent disable for failure\n");
10644
10645         /* Block all SCSI devices' I/Os on the host */
10646         lpfc_scsi_dev_block(phba);
10647
10648         /* stop all timers */
10649         lpfc_stop_hba_timers(phba);
10650
10651         /* Clean up all driver's outstanding SCSI I/Os */
10652         lpfc_sli_flush_fcp_rings(phba);
10653 }
10654
10655 /**
10656  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10657  * @pdev: pointer to PCI device.
10658  * @state: the current PCI connection state.
10659  *
10660  * This routine is called from the PCI subsystem for error handling to device
10661  * with SLI-4 interface spec. This function is called by the PCI subsystem
10662  * after a PCI bus error affecting this device has been detected. When this
10663  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10664  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10665  * for the PCI subsystem to perform proper recovery as desired.
10666  *
10667  * Return codes
10668  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10669  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10670  **/
10671 static pci_ers_result_t
10672 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10673 {
10674         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10675         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10676
10677         switch (state) {
10678         case pci_channel_io_normal:
10679                 /* Non-fatal error, prepare for recovery */
10680                 lpfc_sli4_prep_dev_for_recover(phba);
10681                 return PCI_ERS_RESULT_CAN_RECOVER;
10682         case pci_channel_io_frozen:
10683                 /* Fatal error, prepare for slot reset */
10684                 lpfc_sli4_prep_dev_for_reset(phba);
10685                 return PCI_ERS_RESULT_NEED_RESET;
10686         case pci_channel_io_perm_failure:
10687                 /* Permanent failure, prepare for device down */
10688                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10689                 return PCI_ERS_RESULT_DISCONNECT;
10690         default:
10691                 /* Unknown state, prepare and request slot reset */
10692                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10693                                 "2825 Unknown PCI error state: x%x\n", state);
10694                 lpfc_sli4_prep_dev_for_reset(phba);
10695                 return PCI_ERS_RESULT_NEED_RESET;
10696         }
10697 }
10698
10699 /**
10700  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10701  * @pdev: pointer to PCI device.
10702  *
10703  * This routine is called from the PCI subsystem for error handling to device
10704  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10705  * restart the PCI card from scratch, as if from a cold-boot. During the
10706  * PCI subsystem error recovery, after the driver returns
10707  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10708  * recovery and then call this routine before calling the .resume method to
10709  * recover the device. This function will initialize the HBA device, enable
10710  * the interrupt, but it will just put the HBA to offline state without
10711  * passing any I/O traffic.
10712  *
10713  * Return codes
10714  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10715  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10716  */
10717 static pci_ers_result_t
10718 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10719 {
10720         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10721         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10722         struct lpfc_sli *psli = &phba->sli;
10723         uint32_t intr_mode;
10724
10725         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10726         if (pci_enable_device_mem(pdev)) {
10727                 printk(KERN_ERR "lpfc: Cannot re-enable "
10728                         "PCI device after reset.\n");
10729                 return PCI_ERS_RESULT_DISCONNECT;
10730         }
10731
10732         pci_restore_state(pdev);
10733
10734         /*
10735          * As the new kernel behavior of pci_restore_state() API call clears
10736          * device saved_state flag, need to save the restored state again.
10737          */
10738         pci_save_state(pdev);
10739
10740         if (pdev->is_busmaster)
10741                 pci_set_master(pdev);
10742
10743         spin_lock_irq(&phba->hbalock);
10744         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10745         spin_unlock_irq(&phba->hbalock);
10746
10747         /* Configure and enable interrupt */
10748         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10749         if (intr_mode == LPFC_INTR_ERROR) {
10750                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10751                                 "2824 Cannot re-enable interrupt after "
10752                                 "slot reset.\n");
10753                 return PCI_ERS_RESULT_DISCONNECT;
10754         } else
10755                 phba->intr_mode = intr_mode;
10756
10757         /* Log the current active interrupt mode */
10758         lpfc_log_intr_mode(phba, phba->intr_mode);
10759
10760         return PCI_ERS_RESULT_RECOVERED;
10761 }
10762
10763 /**
10764  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10765  * @pdev: pointer to PCI device
10766  *
10767  * This routine is called from the PCI subsystem for error handling to device
10768  * with SLI-4 interface spec. It is called when kernel error recovery tells
10769  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10770  * error recovery. After this call, traffic can start to flow from this device
10771  * again.
10772  **/
10773 static void
10774 lpfc_io_resume_s4(struct pci_dev *pdev)
10775 {
10776         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10777         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10778
10779         /*
10780          * In case of slot reset, as function reset is performed through
10781          * mailbox command which needs DMA to be enabled, this operation
10782          * has to be moved to the io resume phase. Taking device offline
10783          * will perform the necessary cleanup.
10784          */
10785         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10786                 /* Perform device reset */
10787                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10788                 lpfc_offline(phba);
10789                 lpfc_sli_brdrestart(phba);
10790                 /* Bring the device back online */
10791                 lpfc_online(phba);
10792         }
10793
10794         /* Clean up Advanced Error Reporting (AER) if needed */
10795         if (phba->hba_flag & HBA_AER_ENABLED)
10796                 pci_cleanup_aer_uncorrect_error_status(pdev);
10797 }
10798
10799 /**
10800  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10801  * @pdev: pointer to PCI device
10802  * @pid: pointer to PCI device identifier
10803  *
10804  * This routine is to be registered to the kernel's PCI subsystem. When an
10805  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10806  * at PCI device-specific information of the device and driver to see if the
10807  * driver state that it can support this kind of device. If the match is
10808  * successful, the driver core invokes this routine. This routine dispatches
10809  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10810  * do all the initialization that it needs to do to handle the HBA device
10811  * properly.
10812  *
10813  * Return code
10814  *      0 - driver can claim the device
10815  *      negative value - driver can not claim the device
10816  **/
10817 static int
10818 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10819 {
10820         int rc;
10821         struct lpfc_sli_intf intf;
10822
10823         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10824                 return -ENODEV;
10825
10826         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10827             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10828                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10829         else
10830                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10831
10832         return rc;
10833 }
10834
10835 /**
10836  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10837  * @pdev: pointer to PCI device
10838  *
10839  * This routine is to be registered to the kernel's PCI subsystem. When an
10840  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10841  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10842  * remove routine, which will perform all the necessary cleanup for the
10843  * device to be removed from the PCI subsystem properly.
10844  **/
10845 static void
10846 lpfc_pci_remove_one(struct pci_dev *pdev)
10847 {
10848         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10849         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10850
10851         switch (phba->pci_dev_grp) {
10852         case LPFC_PCI_DEV_LP:
10853                 lpfc_pci_remove_one_s3(pdev);
10854                 break;
10855         case LPFC_PCI_DEV_OC:
10856                 lpfc_pci_remove_one_s4(pdev);
10857                 break;
10858         default:
10859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10860                                 "1424 Invalid PCI device group: 0x%x\n",
10861                                 phba->pci_dev_grp);
10862                 break;
10863         }
10864         return;
10865 }
10866
10867 /**
10868  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10869  * @pdev: pointer to PCI device
10870  * @msg: power management message
10871  *
10872  * This routine is to be registered to the kernel's PCI subsystem to support
10873  * system Power Management (PM). When PM invokes this method, it dispatches
10874  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10875  * suspend the device.
10876  *
10877  * Return code
10878  *      0 - driver suspended the device
10879  *      Error otherwise
10880  **/
10881 static int
10882 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10883 {
10884         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10885         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10886         int rc = -ENODEV;
10887
10888         switch (phba->pci_dev_grp) {
10889         case LPFC_PCI_DEV_LP:
10890                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10891                 break;
10892         case LPFC_PCI_DEV_OC:
10893                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10894                 break;
10895         default:
10896                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10897                                 "1425 Invalid PCI device group: 0x%x\n",
10898                                 phba->pci_dev_grp);
10899                 break;
10900         }
10901         return rc;
10902 }
10903
10904 /**
10905  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10906  * @pdev: pointer to PCI device
10907  *
10908  * This routine is to be registered to the kernel's PCI subsystem to support
10909  * system Power Management (PM). When PM invokes this method, it dispatches
10910  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10911  * resume the device.
10912  *
10913  * Return code
10914  *      0 - driver suspended the device
10915  *      Error otherwise
10916  **/
10917 static int
10918 lpfc_pci_resume_one(struct pci_dev *pdev)
10919 {
10920         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10921         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10922         int rc = -ENODEV;
10923
10924         switch (phba->pci_dev_grp) {
10925         case LPFC_PCI_DEV_LP:
10926                 rc = lpfc_pci_resume_one_s3(pdev);
10927                 break;
10928         case LPFC_PCI_DEV_OC:
10929                 rc = lpfc_pci_resume_one_s4(pdev);
10930                 break;
10931         default:
10932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10933                                 "1426 Invalid PCI device group: 0x%x\n",
10934                                 phba->pci_dev_grp);
10935                 break;
10936         }
10937         return rc;
10938 }
10939
10940 /**
10941  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10942  * @pdev: pointer to PCI device.
10943  * @state: the current PCI connection state.
10944  *
10945  * This routine is registered to the PCI subsystem for error handling. This
10946  * function is called by the PCI subsystem after a PCI bus error affecting
10947  * this device has been detected. When this routine is invoked, it dispatches
10948  * the action to the proper SLI-3 or SLI-4 device error detected handling
10949  * routine, which will perform the proper error detected operation.
10950  *
10951  * Return codes
10952  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10953  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10954  **/
10955 static pci_ers_result_t
10956 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10957 {
10958         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10959         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10960         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10961
10962         switch (phba->pci_dev_grp) {
10963         case LPFC_PCI_DEV_LP:
10964                 rc = lpfc_io_error_detected_s3(pdev, state);
10965                 break;
10966         case LPFC_PCI_DEV_OC:
10967                 rc = lpfc_io_error_detected_s4(pdev, state);
10968                 break;
10969         default:
10970                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10971                                 "1427 Invalid PCI device group: 0x%x\n",
10972                                 phba->pci_dev_grp);
10973                 break;
10974         }
10975         return rc;
10976 }
10977
10978 /**
10979  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10980  * @pdev: pointer to PCI device.
10981  *
10982  * This routine is registered to the PCI subsystem for error handling. This
10983  * function is called after PCI bus has been reset to restart the PCI card
10984  * from scratch, as if from a cold-boot. When this routine is invoked, it
10985  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10986  * routine, which will perform the proper device reset.
10987  *
10988  * Return codes
10989  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10990  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10991  **/
10992 static pci_ers_result_t
10993 lpfc_io_slot_reset(struct pci_dev *pdev)
10994 {
10995         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10996         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10997         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10998
10999         switch (phba->pci_dev_grp) {
11000         case LPFC_PCI_DEV_LP:
11001                 rc = lpfc_io_slot_reset_s3(pdev);
11002                 break;
11003         case LPFC_PCI_DEV_OC:
11004                 rc = lpfc_io_slot_reset_s4(pdev);
11005                 break;
11006         default:
11007                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11008                                 "1428 Invalid PCI device group: 0x%x\n",
11009                                 phba->pci_dev_grp);
11010                 break;
11011         }
11012         return rc;
11013 }
11014
11015 /**
11016  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11017  * @pdev: pointer to PCI device
11018  *
11019  * This routine is registered to the PCI subsystem for error handling. It
11020  * is called when kernel error recovery tells the lpfc driver that it is
11021  * OK to resume normal PCI operation after PCI bus error recovery. When
11022  * this routine is invoked, it dispatches the action to the proper SLI-3
11023  * or SLI-4 device io_resume routine, which will resume the device operation.
11024  **/
11025 static void
11026 lpfc_io_resume(struct pci_dev *pdev)
11027 {
11028         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11029         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11030
11031         switch (phba->pci_dev_grp) {
11032         case LPFC_PCI_DEV_LP:
11033                 lpfc_io_resume_s3(pdev);
11034                 break;
11035         case LPFC_PCI_DEV_OC:
11036                 lpfc_io_resume_s4(pdev);
11037                 break;
11038         default:
11039                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11040                                 "1429 Invalid PCI device group: 0x%x\n",
11041                                 phba->pci_dev_grp);
11042                 break;
11043         }
11044         return;
11045 }
11046
11047 /**
11048  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11049  * @phba: pointer to lpfc hba data structure.
11050  *
11051  * This routine checks to see if OAS is supported for this adapter. If
11052  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11053  * the enable oas flag is cleared and the pool created for OAS device data
11054  * is destroyed.
11055  *
11056  **/
11057 void
11058 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11059 {
11060
11061         if (!phba->cfg_EnableXLane)
11062                 return;
11063
11064         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11065                 phba->cfg_fof = 1;
11066         } else {
11067                 phba->cfg_fof = 0;
11068                 if (phba->device_data_mem_pool)
11069                         mempool_destroy(phba->device_data_mem_pool);
11070                 phba->device_data_mem_pool = NULL;
11071         }
11072
11073         return;
11074 }
11075
11076 /**
11077  * lpfc_fof_queue_setup - Set up all the fof queues
11078  * @phba: pointer to lpfc hba data structure.
11079  *
11080  * This routine is invoked to set up all the fof queues for the FC HBA
11081  * operation.
11082  *
11083  * Return codes
11084  *      0 - successful
11085  *      -ENOMEM - No available memory
11086  **/
11087 int
11088 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11089 {
11090         struct lpfc_sli *psli = &phba->sli;
11091         int rc;
11092
11093         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11094         if (rc)
11095                 return -ENOMEM;
11096
11097         if (phba->cfg_fof) {
11098
11099                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11100                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11101                 if (rc)
11102                         goto out_oas_cq;
11103
11104                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11105                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11106                 if (rc)
11107                         goto out_oas_wq;
11108
11109                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11110                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11111         }
11112
11113         return 0;
11114
11115 out_oas_wq:
11116         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11117 out_oas_cq:
11118         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11119         return rc;
11120
11121 }
11122
11123 /**
11124  * lpfc_fof_queue_create - Create all the fof queues
11125  * @phba: pointer to lpfc hba data structure.
11126  *
11127  * This routine is invoked to allocate all the fof queues for the FC HBA
11128  * operation. For each SLI4 queue type, the parameters such as queue entry
11129  * count (queue depth) shall be taken from the module parameter. For now,
11130  * we just use some constant number as place holder.
11131  *
11132  * Return codes
11133  *      0 - successful
11134  *      -ENOMEM - No availble memory
11135  *      -EIO - The mailbox failed to complete successfully.
11136  **/
11137 int
11138 lpfc_fof_queue_create(struct lpfc_hba *phba)
11139 {
11140         struct lpfc_queue *qdesc;
11141
11142         /* Create FOF EQ */
11143         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11144                                       phba->sli4_hba.eq_ecount);
11145         if (!qdesc)
11146                 goto out_error;
11147
11148         phba->sli4_hba.fof_eq = qdesc;
11149
11150         if (phba->cfg_fof) {
11151
11152                 /* Create OAS CQ */
11153                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11154                                                       phba->sli4_hba.cq_ecount);
11155                 if (!qdesc)
11156                         goto out_error;
11157
11158                 phba->sli4_hba.oas_cq = qdesc;
11159
11160                 /* Create OAS WQ */
11161                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11162                                               phba->sli4_hba.wq_ecount);
11163                 if (!qdesc)
11164                         goto out_error;
11165
11166                 phba->sli4_hba.oas_wq = qdesc;
11167
11168         }
11169         return 0;
11170
11171 out_error:
11172         lpfc_fof_queue_destroy(phba);
11173         return -ENOMEM;
11174 }
11175
11176 /**
11177  * lpfc_fof_queue_destroy - Destroy all the fof queues
11178  * @phba: pointer to lpfc hba data structure.
11179  *
11180  * This routine is invoked to release all the SLI4 queues with the FC HBA
11181  * operation.
11182  *
11183  * Return codes
11184  *      0 - successful
11185  **/
11186 int
11187 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11188 {
11189         /* Release FOF Event queue */
11190         if (phba->sli4_hba.fof_eq != NULL) {
11191                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11192                 phba->sli4_hba.fof_eq = NULL;
11193         }
11194
11195         /* Release OAS Completion queue */
11196         if (phba->sli4_hba.oas_cq != NULL) {
11197                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11198                 phba->sli4_hba.oas_cq = NULL;
11199         }
11200
11201         /* Release OAS Work queue */
11202         if (phba->sli4_hba.oas_wq != NULL) {
11203                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11204                 phba->sli4_hba.oas_wq = NULL;
11205         }
11206         return 0;
11207 }
11208
11209 static struct pci_device_id lpfc_id_table[] = {
11210         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11211                 PCI_ANY_ID, PCI_ANY_ID, },
11212         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11213                 PCI_ANY_ID, PCI_ANY_ID, },
11214         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11215                 PCI_ANY_ID, PCI_ANY_ID, },
11216         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11217                 PCI_ANY_ID, PCI_ANY_ID, },
11218         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11219                 PCI_ANY_ID, PCI_ANY_ID, },
11220         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11221                 PCI_ANY_ID, PCI_ANY_ID, },
11222         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11223                 PCI_ANY_ID, PCI_ANY_ID, },
11224         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11225                 PCI_ANY_ID, PCI_ANY_ID, },
11226         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11227                 PCI_ANY_ID, PCI_ANY_ID, },
11228         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11229                 PCI_ANY_ID, PCI_ANY_ID, },
11230         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11231                 PCI_ANY_ID, PCI_ANY_ID, },
11232         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11233                 PCI_ANY_ID, PCI_ANY_ID, },
11234         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11235                 PCI_ANY_ID, PCI_ANY_ID, },
11236         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11237                 PCI_ANY_ID, PCI_ANY_ID, },
11238         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11239                 PCI_ANY_ID, PCI_ANY_ID, },
11240         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11241                 PCI_ANY_ID, PCI_ANY_ID, },
11242         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11243                 PCI_ANY_ID, PCI_ANY_ID, },
11244         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11245                 PCI_ANY_ID, PCI_ANY_ID, },
11246         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11247                 PCI_ANY_ID, PCI_ANY_ID, },
11248         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11249                 PCI_ANY_ID, PCI_ANY_ID, },
11250         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11251                 PCI_ANY_ID, PCI_ANY_ID, },
11252         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11253                 PCI_ANY_ID, PCI_ANY_ID, },
11254         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11255                 PCI_ANY_ID, PCI_ANY_ID, },
11256         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11257                 PCI_ANY_ID, PCI_ANY_ID, },
11258         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11259                 PCI_ANY_ID, PCI_ANY_ID, },
11260         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11261                 PCI_ANY_ID, PCI_ANY_ID, },
11262         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11263                 PCI_ANY_ID, PCI_ANY_ID, },
11264         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11265                 PCI_ANY_ID, PCI_ANY_ID, },
11266         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11267                 PCI_ANY_ID, PCI_ANY_ID, },
11268         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11269                 PCI_ANY_ID, PCI_ANY_ID, },
11270         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11271                 PCI_ANY_ID, PCI_ANY_ID, },
11272         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11273                 PCI_ANY_ID, PCI_ANY_ID, },
11274         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11275                 PCI_ANY_ID, PCI_ANY_ID, },
11276         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11277                 PCI_ANY_ID, PCI_ANY_ID, },
11278         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11279                 PCI_ANY_ID, PCI_ANY_ID, },
11280         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11281                 PCI_ANY_ID, PCI_ANY_ID, },
11282         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11283                 PCI_ANY_ID, PCI_ANY_ID, },
11284         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11285                 PCI_ANY_ID, PCI_ANY_ID, },
11286         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11287                 PCI_ANY_ID, PCI_ANY_ID, },
11288         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11289                 PCI_ANY_ID, PCI_ANY_ID, },
11290         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11291                 PCI_ANY_ID, PCI_ANY_ID, },
11292         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11293                 PCI_ANY_ID, PCI_ANY_ID, },
11294         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11295                 PCI_ANY_ID, PCI_ANY_ID, },
11296         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11297                 PCI_ANY_ID, PCI_ANY_ID, },
11298         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11299                 PCI_ANY_ID, PCI_ANY_ID, },
11300         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11301                 PCI_ANY_ID, PCI_ANY_ID, },
11302         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11303                 PCI_ANY_ID, PCI_ANY_ID, },
11304         { 0 }
11305 };
11306
11307 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11308
11309 static const struct pci_error_handlers lpfc_err_handler = {
11310         .error_detected = lpfc_io_error_detected,
11311         .slot_reset = lpfc_io_slot_reset,
11312         .resume = lpfc_io_resume,
11313 };
11314
11315 static struct pci_driver lpfc_driver = {
11316         .name           = LPFC_DRIVER_NAME,
11317         .id_table       = lpfc_id_table,
11318         .probe          = lpfc_pci_probe_one,
11319         .remove         = lpfc_pci_remove_one,
11320         .suspend        = lpfc_pci_suspend_one,
11321         .resume         = lpfc_pci_resume_one,
11322         .err_handler    = &lpfc_err_handler,
11323 };
11324
11325 static const struct file_operations lpfc_mgmt_fop = {
11326         .owner = THIS_MODULE,
11327 };
11328
11329 static struct miscdevice lpfc_mgmt_dev = {
11330         .minor = MISC_DYNAMIC_MINOR,
11331         .name = "lpfcmgmt",
11332         .fops = &lpfc_mgmt_fop,
11333 };
11334
11335 /**
11336  * lpfc_init - lpfc module initialization routine
11337  *
11338  * This routine is to be invoked when the lpfc module is loaded into the
11339  * kernel. The special kernel macro module_init() is used to indicate the
11340  * role of this routine to the kernel as lpfc module entry point.
11341  *
11342  * Return codes
11343  *   0 - successful
11344  *   -ENOMEM - FC attach transport failed
11345  *   all others - failed
11346  */
11347 static int __init
11348 lpfc_init(void)
11349 {
11350         int cpu;
11351         int error = 0;
11352
11353         printk(LPFC_MODULE_DESC "\n");
11354         printk(LPFC_COPYRIGHT "\n");
11355
11356         error = misc_register(&lpfc_mgmt_dev);
11357         if (error)
11358                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11359                         "misc_register returned with status %d", error);
11360
11361         if (lpfc_enable_npiv) {
11362                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11363                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11364         }
11365         lpfc_transport_template =
11366                                 fc_attach_transport(&lpfc_transport_functions);
11367         if (lpfc_transport_template == NULL)
11368                 return -ENOMEM;
11369         if (lpfc_enable_npiv) {
11370                 lpfc_vport_transport_template =
11371                         fc_attach_transport(&lpfc_vport_transport_functions);
11372                 if (lpfc_vport_transport_template == NULL) {
11373                         fc_release_transport(lpfc_transport_template);
11374                         return -ENOMEM;
11375                 }
11376         }
11377
11378         /* Initialize in case vector mapping is needed */
11379         lpfc_used_cpu = NULL;
11380         lpfc_present_cpu = 0;
11381         for_each_present_cpu(cpu)
11382                 lpfc_present_cpu++;
11383
11384         error = pci_register_driver(&lpfc_driver);
11385         if (error) {
11386                 fc_release_transport(lpfc_transport_template);
11387                 if (lpfc_enable_npiv)
11388                         fc_release_transport(lpfc_vport_transport_template);
11389         }
11390
11391         return error;
11392 }
11393
11394 /**
11395  * lpfc_exit - lpfc module removal routine
11396  *
11397  * This routine is invoked when the lpfc module is removed from the kernel.
11398  * The special kernel macro module_exit() is used to indicate the role of
11399  * this routine to the kernel as lpfc module exit point.
11400  */
11401 static void __exit
11402 lpfc_exit(void)
11403 {
11404         misc_deregister(&lpfc_mgmt_dev);
11405         pci_unregister_driver(&lpfc_driver);
11406         fc_release_transport(lpfc_transport_template);
11407         if (lpfc_enable_npiv)
11408                 fc_release_transport(lpfc_vport_transport_template);
11409         if (_dump_buf_data) {
11410                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11411                                 "_dump_buf_data at 0x%p\n",
11412                                 (1L << _dump_buf_data_order), _dump_buf_data);
11413                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11414         }
11415
11416         if (_dump_buf_dif) {
11417                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11418                                 "_dump_buf_dif at 0x%p\n",
11419                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11420                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11421         }
11422         kfree(lpfc_used_cpu);
11423 }
11424
11425 module_init(lpfc_init);
11426 module_exit(lpfc_exit);
11427 MODULE_LICENSE("GPL");
11428 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11429 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11430 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);