drivers/scsi/lpfc/lpfc_init.c

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