kernel/drivers/scsi/bfa/bfad.c

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /*
  19  *  bfad.c Linux driver PCI interface module.
  20  */
  21 #include <linux/module.h>
  22 #include <linux/kthread.h>
  23 #include <linux/errno.h>
  24 #include <linux/sched.h>
  25 #include <linux/init.h>
  26 #include <linux/fs.h>
  27 #include <linux/pci.h>
  28 #include <linux/firmware.h>
  29 #include <asm/uaccess.h>
  30 #include <asm/fcntl.h>
  31
  32 #include "bfad_drv.h"
  33 #include "bfad_im.h"
  34 #include "bfa_fcs.h"
  35 #include "bfa_defs.h"
  36 #include "bfa.h"
  37
  38 BFA_TRC_FILE(LDRV, BFAD);
  39 DEFINE_MUTEX(bfad_mutex);
  40 LIST_HEAD(bfad_list);
  41
  42 static int      bfad_inst;
  43 static int      num_sgpgs_parm;
  44 int             supported_fc4s;
  45 char            *host_name, *os_name, *os_patch;
  46 int             num_rports, num_ios, num_tms;
  47 int             num_fcxps, num_ufbufs;
  48 int             reqq_size, rspq_size, num_sgpgs;
  49 int             rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT;
  50 int             bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
  51 int             bfa_io_max_sge = BFAD_IO_MAX_SGE;
  52 int             bfa_log_level = 3; /* WARNING log level */
  53 int             ioc_auto_recover = BFA_TRUE;
  54 int             bfa_linkup_delay = -1;
  55 int             fdmi_enable = BFA_TRUE;
  56 int             pcie_max_read_reqsz;
  57 int             bfa_debugfs_enable = 1;
  58 int             msix_disable_cb = 0, msix_disable_ct = 0;
  59 int             max_xfer_size = BFAD_MAX_SECTORS >> 1;
  60 int             max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS;
  61
  62 /* Firmware releated */
  63 u32     bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size;
  64 u32     *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2;
  65
  66 #define BFAD_FW_FILE_CB         "cbfw-3.2.3.0.bin"
  67 #define BFAD_FW_FILE_CT         "ctfw-3.2.3.0.bin"
  68 #define BFAD_FW_FILE_CT2        "ct2fw-3.2.3.0.bin"
  69
  70 static u32 *bfad_load_fwimg(struct pci_dev *pdev);
  71 static void bfad_free_fwimg(void);
  72 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
  73                 u32 *bfi_image_size, char *fw_name);
  74
  75 static const char *msix_name_ct[] = {
  76         "ctrl",
  77         "cpe0", "cpe1", "cpe2", "cpe3",
  78         "rme0", "rme1", "rme2", "rme3" };
  79
  80 static const char *msix_name_cb[] = {
  81         "cpe0", "cpe1", "cpe2", "cpe3",
  82         "rme0", "rme1", "rme2", "rme3",
  83         "eemc", "elpu0", "elpu1", "epss", "mlpu" };
  84
  85 MODULE_FIRMWARE(BFAD_FW_FILE_CB);
  86 MODULE_FIRMWARE(BFAD_FW_FILE_CT);
  87 MODULE_FIRMWARE(BFAD_FW_FILE_CT2);
  88
  89 module_param(os_name, charp, S_IRUGO | S_IWUSR);
  90 MODULE_PARM_DESC(os_name, "OS name of the hba host machine");
  91 module_param(os_patch, charp, S_IRUGO | S_IWUSR);
  92 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine");
  93 module_param(host_name, charp, S_IRUGO | S_IWUSR);
  94 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine");
  95 module_param(num_rports, int, S_IRUGO | S_IWUSR);
  96 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port "
  97                                 "(physical/logical), default=1024");
  98 module_param(num_ios, int, S_IRUGO | S_IWUSR);
  99 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000");
 100 module_param(num_tms, int, S_IRUGO | S_IWUSR);
 101 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128");
 102 module_param(num_fcxps, int, S_IRUGO | S_IWUSR);
 103 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64");
 104 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR);
 105 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame "
 106                                 "buffers, default=64");
 107 module_param(reqq_size, int, S_IRUGO | S_IWUSR);
 108 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, "
 109                                 "default=256");
 110 module_param(rspq_size, int, S_IRUGO | S_IWUSR);
 111 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, "
 112                                 "default=64");
 113 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR);
 114 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048");
 115 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR);
 116 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, "
 117                                         "Range[>0]");
 118 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR);
 119 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]");
 120 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR);
 121 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255");
 122 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR);
 123 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, "
 124                                 "Range[Critical:1|Error:2|Warning:3|Info:4]");
 125 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 126 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, "
 127                                 "Range[off:0|on:1]");
 128 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 129 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for "
 130                         "boot port. Otherwise 10 secs in RHEL4 & 0 for "
 131                         "[RHEL5, SLES10, ESX40] Range[>0]");
 132 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR);
 133 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts "
 134                         "for Brocade-415/425/815/825 cards, default=0, "
 135                         " Range[false:0|true:1]");
 136 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR);
 137 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts "
 138                         "if possible for Brocade-1010/1020/804/1007/902/1741 "
 139                         "cards, default=0, Range[false:0|true:1]");
 140 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 141 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, "
 142                                 "Range[false:0|true:1]");
 143 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR);
 144 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 "
 145                 "(use system setting), Range[128|256|512|1024|2048|4096]");
 146 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR);
 147 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1,"
 148                 " Range[false:0|true:1]");
 149 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR);
 150 MODULE_PARM_DESC(max_xfer_size, "default=32MB,"
 151                 " Range[64k|128k|256k|512k|1024k|2048k]");
 152 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR);
 153 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024");
 154
 155 static void
 156 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event);
 157 static void
 158 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event);
 159 static void
 160 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event);
 161 static void
 162 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event);
 163 static void
 164 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event);
 165 static void
 166 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event);
 167 static void
 168 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event);
 169
 170 /*
 171  * Beginning state for the driver instance, awaiting the pci_probe event
 172  */
 173 static void
 174 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event)
 175 {
 176         bfa_trc(bfad, event);
 177
 178         switch (event) {
 179         case BFAD_E_CREATE:
 180                 bfa_sm_set_state(bfad, bfad_sm_created);
 181                 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad,
 182                                                 "%s", "bfad_worker");
 183                 if (IS_ERR(bfad->bfad_tsk)) {
 184                         printk(KERN_INFO "bfad[%d]: Kernel thread "
 185                                 "creation failed!\n", bfad->inst_no);
 186                         bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED);
 187                 }
 188                 bfa_sm_send_event(bfad, BFAD_E_INIT);
 189                 break;
 190
 191         case BFAD_E_STOP:
 192                 /* Ignore stop; already in uninit */
 193                 break;
 194
 195         default:
 196                 bfa_sm_fault(bfad, event);
 197         }
 198 }
 199
 200 /*
 201  * Driver Instance is created, awaiting event INIT to initialize the bfad
 202  */
 203 static void
 204 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event)
 205 {
 206         unsigned long flags;
 207         bfa_status_t ret;
 208
 209         bfa_trc(bfad, event);
 210
 211         switch (event) {
 212         case BFAD_E_INIT:
 213                 bfa_sm_set_state(bfad, bfad_sm_initializing);
 214
 215                 init_completion(&bfad->comp);
 216
 217                 /* Enable Interrupt and wait bfa_init completion */
 218                 if (bfad_setup_intr(bfad)) {
 219                         printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n",
 220                                         bfad->inst_no);
 221                         bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 222                         break;
 223                 }
 224
 225                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 226                 bfa_iocfc_init(&bfad->bfa);
 227                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 228
 229                 /* Set up interrupt handler for each vectors */
 230                 if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
 231                         bfad_install_msix_handler(bfad)) {
 232                         printk(KERN_WARNING "%s: install_msix failed, bfad%d\n",
 233                                 __func__, bfad->inst_no);
 234                 }
 235
 236                 bfad_init_timer(bfad);
 237
 238                 wait_for_completion(&bfad->comp);
 239
 240                 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) {
 241                         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
 242                 } else {
 243                         printk(KERN_WARNING
 244                                 "bfa %s: bfa init failed\n",
 245                                 bfad->pci_name);
 246                         spin_lock_irqsave(&bfad->bfad_lock, flags);
 247                         bfa_fcs_init(&bfad->bfa_fcs);
 248                         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 249
 250                         ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
 251                         if (ret != BFA_STATUS_OK) {
 252                                 init_completion(&bfad->comp);
 253
 254                                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 255                                 bfad->pport.flags |= BFAD_PORT_DELETE;
 256                                 bfa_fcs_exit(&bfad->bfa_fcs);
 257                                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 258
 259                                 wait_for_completion(&bfad->comp);
 260
 261                                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
 262                                 break;
 263                         }
 264                         bfad->bfad_flags |= BFAD_HAL_INIT_FAIL;
 265                         bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED);
 266                 }
 267
 268                 break;
 269
 270         case BFAD_E_KTHREAD_CREATE_FAILED:
 271                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 272                 break;
 273
 274         default:
 275                 bfa_sm_fault(bfad, event);
 276         }
 277 }
 278
 279 static void
 280 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event)
 281 {
 282         int     retval;
 283         unsigned long   flags;
 284
 285         bfa_trc(bfad, event);
 286
 287         switch (event) {
 288         case BFAD_E_INIT_SUCCESS:
 289                 kthread_stop(bfad->bfad_tsk);
 290                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 291                 bfad->bfad_tsk = NULL;
 292                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 293
 294                 retval = bfad_start_ops(bfad);
 295                 if (retval != BFA_STATUS_OK) {
 296                         bfa_sm_set_state(bfad, bfad_sm_failed);
 297                         break;
 298                 }
 299                 bfa_sm_set_state(bfad, bfad_sm_operational);
 300                 break;
 301
 302         case BFAD_E_INIT_FAILED:
 303                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 304                 kthread_stop(bfad->bfad_tsk);
 305                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 306                 bfad->bfad_tsk = NULL;
 307                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 308                 break;
 309
 310         case BFAD_E_HAL_INIT_FAILED:
 311                 bfa_sm_set_state(bfad, bfad_sm_failed);
 312                 break;
 313         default:
 314                 bfa_sm_fault(bfad, event);
 315         }
 316 }
 317
 318 static void
 319 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event)
 320 {
 321         int     retval;
 322
 323         bfa_trc(bfad, event);
 324
 325         switch (event) {
 326         case BFAD_E_INIT_SUCCESS:
 327                 retval = bfad_start_ops(bfad);
 328                 if (retval != BFA_STATUS_OK)
 329                         break;
 330                 bfa_sm_set_state(bfad, bfad_sm_operational);
 331                 break;
 332
 333         case BFAD_E_STOP:
 334                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 335                 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 336                 break;
 337
 338         case BFAD_E_EXIT_COMP:
 339                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 340                 bfad_remove_intr(bfad);
 341                 del_timer_sync(&bfad->hal_tmo);
 342                 break;
 343
 344         default:
 345                 bfa_sm_fault(bfad, event);
 346         }
 347 }
 348
 349 static void
 350 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event)
 351 {
 352         bfa_trc(bfad, event);
 353
 354         switch (event) {
 355         case BFAD_E_STOP:
 356                 bfa_sm_set_state(bfad, bfad_sm_fcs_exit);
 357                 bfad_fcs_stop(bfad);
 358                 break;
 359
 360         default:
 361                 bfa_sm_fault(bfad, event);
 362         }
 363 }
 364
 365 static void
 366 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event)
 367 {
 368         bfa_trc(bfad, event);
 369
 370         switch (event) {
 371         case BFAD_E_FCS_EXIT_COMP:
 372                 bfa_sm_set_state(bfad, bfad_sm_stopping);
 373                 bfad_stop(bfad);
 374                 break;
 375
 376         default:
 377                 bfa_sm_fault(bfad, event);
 378         }
 379 }
 380
 381 static void
 382 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event)
 383 {
 384         bfa_trc(bfad, event);
 385
 386         switch (event) {
 387         case BFAD_E_EXIT_COMP:
 388                 bfa_sm_set_state(bfad, bfad_sm_uninit);
 389                 bfad_remove_intr(bfad);
 390                 del_timer_sync(&bfad->hal_tmo);
 391                 bfad_im_probe_undo(bfad);
 392                 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE;
 393                 bfad_uncfg_pport(bfad);
 394                 break;
 395
 396         default:
 397                 bfa_sm_fault(bfad, event);
 398                 break;
 399         }
 400 }
 401
 402 /*
 403  *  BFA callbacks
 404  */
 405 void
 406 bfad_hcb_comp(void *arg, bfa_status_t status)
 407 {
 408         struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg;
 409
 410         fcomp->status = status;
 411         complete(&fcomp->comp);
 412 }
 413
 414 /*
 415  * bfa_init callback
 416  */
 417 void
 418 bfa_cb_init(void *drv, bfa_status_t init_status)
 419 {
 420         struct bfad_s         *bfad = drv;
 421
 422         if (init_status == BFA_STATUS_OK) {
 423                 bfad->bfad_flags |= BFAD_HAL_INIT_DONE;
 424
 425                 /*
 426                  * If BFAD_HAL_INIT_FAIL flag is set:
 427                  * Wake up the kernel thread to start
 428                  * the bfad operations after HAL init done
 429                  */
 430                 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) {
 431                         bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL;
 432                         wake_up_process(bfad->bfad_tsk);
 433                 }
 434         }
 435
 436         complete(&bfad->comp);
 437 }
 438
 439 /*
 440  *  BFA_FCS callbacks
 441  */
 442 struct bfad_port_s *
 443 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port,
 444                  enum bfa_lport_role roles, struct bfad_vf_s *vf_drv,
 445                  struct bfad_vport_s *vp_drv)
 446 {
 447         bfa_status_t    rc;
 448         struct bfad_port_s    *port_drv;
 449
 450         if (!vp_drv && !vf_drv) {
 451                 port_drv = &bfad->pport;
 452                 port_drv->pvb_type = BFAD_PORT_PHYS_BASE;
 453         } else if (!vp_drv && vf_drv) {
 454                 port_drv = &vf_drv->base_port;
 455                 port_drv->pvb_type = BFAD_PORT_VF_BASE;
 456         } else if (vp_drv && !vf_drv) {
 457                 port_drv = &vp_drv->drv_port;
 458                 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT;
 459         } else {
 460                 port_drv = &vp_drv->drv_port;
 461                 port_drv->pvb_type = BFAD_PORT_VF_VPORT;
 462         }
 463
 464         port_drv->fcs_port = port;
 465         port_drv->roles = roles;
 466
 467         if (roles & BFA_LPORT_ROLE_FCP_IM) {
 468                 rc = bfad_im_port_new(bfad, port_drv);
 469                 if (rc != BFA_STATUS_OK) {
 470                         bfad_im_port_delete(bfad, port_drv);
 471                         port_drv = NULL;
 472                 }
 473         }
 474
 475         return port_drv;
 476 }
 477
 478 /*
 479  * FCS RPORT alloc callback, after successful PLOGI by FCS
 480  */
 481 bfa_status_t
 482 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport,
 483                     struct bfad_rport_s **rport_drv)
 484 {
 485         bfa_status_t    rc = BFA_STATUS_OK;
 486
 487         *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC);
 488         if (*rport_drv == NULL) {
 489                 rc = BFA_STATUS_ENOMEM;
 490                 goto ext;
 491         }
 492
 493         *rport = &(*rport_drv)->fcs_rport;
 494
 495 ext:
 496         return rc;
 497 }
 498
 499 /*
 500  * FCS PBC VPORT Create
 501  */
 502 void
 503 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport)
 504 {
 505
 506         struct bfa_lport_cfg_s port_cfg = {0};
 507         struct bfad_vport_s   *vport;
 508         int rc;
 509
 510         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC);
 511         if (!vport) {
 512                 bfa_trc(bfad, 0);
 513                 return;
 514         }
 515
 516         vport->drv_port.bfad = bfad;
 517         port_cfg.roles = BFA_LPORT_ROLE_FCP_IM;
 518         port_cfg.pwwn = pbc_vport.vp_pwwn;
 519         port_cfg.nwwn = pbc_vport.vp_nwwn;
 520         port_cfg.preboot_vp  = BFA_TRUE;
 521
 522         rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0,
 523                                   &port_cfg, vport);
 524
 525         if (rc != BFA_STATUS_OK) {
 526                 bfa_trc(bfad, 0);
 527                 return;
 528         }
 529
 530         list_add_tail(&vport->list_entry, &bfad->pbc_vport_list);
 531 }
 532
 533 void
 534 bfad_hal_mem_release(struct bfad_s *bfad)
 535 {
 536         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 537         struct bfa_mem_dma_s *dma_info, *dma_elem;
 538         struct bfa_mem_kva_s *kva_info, *kva_elem;
 539         struct list_head *dm_qe, *km_qe;
 540
 541         dma_info = &hal_meminfo->dma_info;
 542         kva_info = &hal_meminfo->kva_info;
 543
 544         /* Iterate through the KVA meminfo queue */
 545         list_for_each(km_qe, &kva_info->qe) {
 546                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 547                 vfree(kva_elem->kva);
 548         }
 549
 550         /* Iterate through the DMA meminfo queue */
 551         list_for_each(dm_qe, &dma_info->qe) {
 552                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 553                 dma_free_coherent(&bfad->pcidev->dev,
 554                                 dma_elem->mem_len, dma_elem->kva,
 555                                 (dma_addr_t) dma_elem->dma);
 556         }
 557
 558         memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s));
 559 }
 560
 561 void
 562 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg)
 563 {
 564         if (num_rports > 0)
 565                 bfa_cfg->fwcfg.num_rports = num_rports;
 566         if (num_ios > 0)
 567                 bfa_cfg->fwcfg.num_ioim_reqs = num_ios;
 568         if (num_tms > 0)
 569                 bfa_cfg->fwcfg.num_tskim_reqs = num_tms;
 570         if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX)
 571                 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps;
 572         if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX)
 573                 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs;
 574         if (reqq_size > 0)
 575                 bfa_cfg->drvcfg.num_reqq_elems = reqq_size;
 576         if (rspq_size > 0)
 577                 bfa_cfg->drvcfg.num_rspq_elems = rspq_size;
 578         if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX)
 579                 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs;
 580
 581         /*
 582          * populate the hal values back to the driver for sysfs use.
 583          * otherwise, the default values will be shown as 0 in sysfs
 584          */
 585         num_rports = bfa_cfg->fwcfg.num_rports;
 586         num_ios = bfa_cfg->fwcfg.num_ioim_reqs;
 587         num_tms = bfa_cfg->fwcfg.num_tskim_reqs;
 588         num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs;
 589         num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs;
 590         reqq_size = bfa_cfg->drvcfg.num_reqq_elems;
 591         rspq_size = bfa_cfg->drvcfg.num_rspq_elems;
 592         num_sgpgs = bfa_cfg->drvcfg.num_sgpgs;
 593 }
 594
 595 bfa_status_t
 596 bfad_hal_mem_alloc(struct bfad_s *bfad)
 597 {
 598         struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo;
 599         struct bfa_mem_dma_s *dma_info, *dma_elem;
 600         struct bfa_mem_kva_s *kva_info, *kva_elem;
 601         struct list_head *dm_qe, *km_qe;
 602         bfa_status_t    rc = BFA_STATUS_OK;
 603         dma_addr_t      phys_addr;
 604
 605         bfa_cfg_get_default(&bfad->ioc_cfg);
 606         bfad_update_hal_cfg(&bfad->ioc_cfg);
 607         bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs;
 608         bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa);
 609
 610         dma_info = &hal_meminfo->dma_info;
 611         kva_info = &hal_meminfo->kva_info;
 612
 613         /* Iterate through the KVA meminfo queue */
 614         list_for_each(km_qe, &kva_info->qe) {
 615                 kva_elem = (struct bfa_mem_kva_s *) km_qe;
 616                 kva_elem->kva = vmalloc(kva_elem->mem_len);
 617                 if (kva_elem->kva == NULL) {
 618                         bfad_hal_mem_release(bfad);
 619                         rc = BFA_STATUS_ENOMEM;
 620                         goto ext;
 621                 }
 622                 memset(kva_elem->kva, 0, kva_elem->mem_len);
 623         }
 624
 625         /* Iterate through the DMA meminfo queue */
 626         list_for_each(dm_qe, &dma_info->qe) {
 627                 dma_elem = (struct bfa_mem_dma_s *) dm_qe;
 628                 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev,
 629                                                 dma_elem->mem_len,
 630                                                 &phys_addr, GFP_KERNEL);
 631                 if (dma_elem->kva == NULL) {
 632                         bfad_hal_mem_release(bfad);
 633                         rc = BFA_STATUS_ENOMEM;
 634                         goto ext;
 635                 }
 636                 dma_elem->dma = phys_addr;
 637                 memset(dma_elem->kva, 0, dma_elem->mem_len);
 638         }
 639 ext:
 640         return rc;
 641 }
 642
 643 /*
 644  * Create a vport under a vf.
 645  */
 646 bfa_status_t
 647 bfad_vport_create(struct bfad_s *bfad, u16 vf_id,
 648                   struct bfa_lport_cfg_s *port_cfg, struct device *dev)
 649 {
 650         struct bfad_vport_s   *vport;
 651         int             rc = BFA_STATUS_OK;
 652         unsigned long   flags;
 653         struct completion fcomp;
 654
 655         vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL);
 656         if (!vport) {
 657                 rc = BFA_STATUS_ENOMEM;
 658                 goto ext;
 659         }
 660
 661         vport->drv_port.bfad = bfad;
 662         spin_lock_irqsave(&bfad->bfad_lock, flags);
 663         rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id,
 664                                   port_cfg, vport);
 665         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 666
 667         if (rc != BFA_STATUS_OK)
 668                 goto ext_free_vport;
 669
 670         if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) {
 671                 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port,
 672                                                         dev);
 673                 if (rc != BFA_STATUS_OK)
 674                         goto ext_free_fcs_vport;
 675         }
 676
 677         spin_lock_irqsave(&bfad->bfad_lock, flags);
 678         bfa_fcs_vport_start(&vport->fcs_vport);
 679         list_add_tail(&vport->list_entry, &bfad->vport_list);
 680         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 681
 682         return BFA_STATUS_OK;
 683
 684 ext_free_fcs_vport:
 685         spin_lock_irqsave(&bfad->bfad_lock, flags);
 686         vport->comp_del = &fcomp;
 687         init_completion(vport->comp_del);
 688         bfa_fcs_vport_delete(&vport->fcs_vport);
 689         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 690         wait_for_completion(vport->comp_del);
 691 ext_free_vport:
 692         kfree(vport);
 693 ext:
 694         return rc;
 695 }
 696
 697 void
 698 bfad_bfa_tmo(unsigned long data)
 699 {
 700         struct bfad_s         *bfad = (struct bfad_s *) data;
 701         unsigned long   flags;
 702         struct list_head               doneq;
 703
 704         spin_lock_irqsave(&bfad->bfad_lock, flags);
 705
 706         bfa_timer_beat(&bfad->bfa.timer_mod);
 707
 708         bfa_comp_deq(&bfad->bfa, &doneq);
 709         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 710
 711         if (!list_empty(&doneq)) {
 712                 bfa_comp_process(&bfad->bfa, &doneq);
 713                 spin_lock_irqsave(&bfad->bfad_lock, flags);
 714                 bfa_comp_free(&bfad->bfa, &doneq);
 715                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 716         }
 717
 718         mod_timer(&bfad->hal_tmo,
 719                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 720 }
 721
 722 void
 723 bfad_init_timer(struct bfad_s *bfad)
 724 {
 725         init_timer(&bfad->hal_tmo);
 726         bfad->hal_tmo.function = bfad_bfa_tmo;
 727         bfad->hal_tmo.data = (unsigned long)bfad;
 728
 729         mod_timer(&bfad->hal_tmo,
 730                   jiffies + msecs_to_jiffies(BFA_TIMER_FREQ));
 731 }
 732
 733 int
 734 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 735 {
 736         int             rc = -ENODEV;
 737
 738         if (pci_enable_device(pdev)) {
 739                 printk(KERN_ERR "pci_enable_device fail %p\n", pdev);
 740                 goto out;
 741         }
 742
 743         if (pci_request_regions(pdev, BFAD_DRIVER_NAME))
 744                 goto out_disable_device;
 745
 746         pci_set_master(pdev);
 747
 748
 749         if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) ||
 750             (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) {
 751                 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
 752                    (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
 753                         printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev);
 754                         goto out_release_region;
 755                 }
 756         }
 757
 758         /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */
 759         pci_enable_pcie_error_reporting(pdev);
 760
 761         bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0));
 762         bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2));
 763
 764         if (bfad->pci_bar0_kva == NULL) {
 765                 printk(KERN_ERR "Fail to map bar0\n");
 766                 goto out_release_region;
 767         }
 768
 769         bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn);
 770         bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn);
 771         bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva;
 772         bfad->hal_pcidev.device_id = pdev->device;
 773         bfad->hal_pcidev.ssid = pdev->subsystem_device;
 774         bfad->pci_name = pci_name(pdev);
 775
 776         bfad->pci_attr.vendor_id = pdev->vendor;
 777         bfad->pci_attr.device_id = pdev->device;
 778         bfad->pci_attr.ssid = pdev->subsystem_device;
 779         bfad->pci_attr.ssvid = pdev->subsystem_vendor;
 780         bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn);
 781
 782         bfad->pcidev = pdev;
 783
 784         /* Adjust PCIe Maximum Read Request Size */
 785         if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
 786                 if (pcie_max_read_reqsz >= 128 &&
 787                     pcie_max_read_reqsz <= 4096 &&
 788                     is_power_of_2(pcie_max_read_reqsz)) {
 789                         int max_rq = pcie_get_readrq(pdev);
 790                         printk(KERN_WARNING "BFA[%s]: "
 791                                 "pcie_max_read_request_size is %d, "
 792                                 "reset to %d\n", bfad->pci_name, max_rq,
 793                                 pcie_max_read_reqsz);
 794                         pcie_set_readrq(pdev, pcie_max_read_reqsz);
 795                 } else {
 796                         printk(KERN_WARNING "BFA[%s]: invalid "
 797                                "pcie_max_read_request_size %d ignored\n",
 798                                bfad->pci_name, pcie_max_read_reqsz);
 799                 }
 800         }
 801
 802         pci_save_state(pdev);
 803
 804         return 0;
 805
 806 out_release_region:
 807         pci_release_regions(pdev);
 808 out_disable_device:
 809         pci_disable_device(pdev);
 810 out:
 811         return rc;
 812 }
 813
 814 void
 815 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 816 {
 817         pci_iounmap(pdev, bfad->pci_bar0_kva);
 818         pci_iounmap(pdev, bfad->pci_bar2_kva);
 819         pci_release_regions(pdev);
 820         /* Disable PCIE Advanced Error Recovery (AER) */
 821         pci_disable_pcie_error_reporting(pdev);
 822         pci_disable_device(pdev);
 823 }
 824
 825 bfa_status_t
 826 bfad_drv_init(struct bfad_s *bfad)
 827 {
 828         bfa_status_t    rc;
 829         unsigned long   flags;
 830
 831         bfad->cfg_data.rport_del_timeout = rport_del_timeout;
 832         bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth;
 833         bfad->cfg_data.io_max_sge = bfa_io_max_sge;
 834         bfad->cfg_data.binding_method = FCP_PWWN_BINDING;
 835
 836         rc = bfad_hal_mem_alloc(bfad);
 837         if (rc != BFA_STATUS_OK) {
 838                 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n",
 839                        bfad->inst_no);
 840                 printk(KERN_WARNING
 841                         "Not enough memory to attach all Brocade HBA ports, %s",
 842                         "System may need more memory.\n");
 843                 return BFA_STATUS_FAILED;
 844         }
 845
 846         bfad->bfa.trcmod = bfad->trcmod;
 847         bfad->bfa.plog = &bfad->plog_buf;
 848         bfa_plog_init(&bfad->plog_buf);
 849         bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START,
 850                      0, "Driver Attach");
 851
 852         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo,
 853                    &bfad->hal_pcidev);
 854
 855         /* FCS INIT */
 856         spin_lock_irqsave(&bfad->bfad_lock, flags);
 857         bfad->bfa_fcs.trcmod = bfad->trcmod;
 858         bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
 859         bfad->bfa_fcs.fdmi_enabled = fdmi_enable;
 860         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 861
 862         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
 863
 864         return BFA_STATUS_OK;
 865 }
 866
 867 void
 868 bfad_drv_uninit(struct bfad_s *bfad)
 869 {
 870         unsigned long   flags;
 871
 872         spin_lock_irqsave(&bfad->bfad_lock, flags);
 873         init_completion(&bfad->comp);
 874         bfa_iocfc_stop(&bfad->bfa);
 875         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 876         wait_for_completion(&bfad->comp);
 877
 878         del_timer_sync(&bfad->hal_tmo);
 879         bfa_isr_disable(&bfad->bfa);
 880         bfa_detach(&bfad->bfa);
 881         bfad_remove_intr(bfad);
 882         bfad_hal_mem_release(bfad);
 883
 884         bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE;
 885 }
 886
 887 void
 888 bfad_drv_start(struct bfad_s *bfad)
 889 {
 890         unsigned long   flags;
 891
 892         spin_lock_irqsave(&bfad->bfad_lock, flags);
 893         bfa_iocfc_start(&bfad->bfa);
 894         bfa_fcs_pbc_vport_init(&bfad->bfa_fcs);
 895         bfa_fcs_fabric_modstart(&bfad->bfa_fcs);
 896         bfad->bfad_flags |= BFAD_HAL_START_DONE;
 897         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 898
 899         if (bfad->im)
 900                 flush_workqueue(bfad->im->drv_workq);
 901 }
 902
 903 void
 904 bfad_fcs_stop(struct bfad_s *bfad)
 905 {
 906         unsigned long   flags;
 907
 908         spin_lock_irqsave(&bfad->bfad_lock, flags);
 909         init_completion(&bfad->comp);
 910         bfad->pport.flags |= BFAD_PORT_DELETE;
 911         bfa_fcs_exit(&bfad->bfa_fcs);
 912         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 913         wait_for_completion(&bfad->comp);
 914
 915         bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP);
 916 }
 917
 918 void
 919 bfad_stop(struct bfad_s *bfad)
 920 {
 921         unsigned long   flags;
 922
 923         spin_lock_irqsave(&bfad->bfad_lock, flags);
 924         init_completion(&bfad->comp);
 925         bfa_iocfc_stop(&bfad->bfa);
 926         bfad->bfad_flags &= ~BFAD_HAL_START_DONE;
 927         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 928         wait_for_completion(&bfad->comp);
 929
 930         bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP);
 931 }
 932
 933 bfa_status_t
 934 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role)
 935 {
 936         int             rc = BFA_STATUS_OK;
 937
 938         /* Allocate scsi_host for the physical port */
 939         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 940             (role & BFA_LPORT_ROLE_FCP_IM)) {
 941                 if (bfad->pport.im_port == NULL) {
 942                         rc = BFA_STATUS_FAILED;
 943                         goto out;
 944                 }
 945
 946                 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port,
 947                                                 &bfad->pcidev->dev);
 948                 if (rc != BFA_STATUS_OK)
 949                         goto out;
 950
 951                 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM;
 952         }
 953
 954         bfad->bfad_flags |= BFAD_CFG_PPORT_DONE;
 955
 956 out:
 957         return rc;
 958 }
 959
 960 void
 961 bfad_uncfg_pport(struct bfad_s *bfad)
 962 {
 963         if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) &&
 964             (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) {
 965                 bfad_im_scsi_host_free(bfad, bfad->pport.im_port);
 966                 bfad_im_port_clean(bfad->pport.im_port);
 967                 kfree(bfad->pport.im_port);
 968                 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM;
 969         }
 970
 971         bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE;
 972 }
 973
 974 bfa_status_t
 975 bfad_start_ops(struct bfad_s *bfad) {
 976
 977         int     retval;
 978         unsigned long   flags;
 979         struct bfad_vport_s *vport, *vport_new;
 980         struct bfa_fcs_driver_info_s driver_info;
 981
 982         /* Limit min/max. xfer size to [64k-32MB] */
 983         if (max_xfer_size < BFAD_MIN_SECTORS >> 1)
 984                 max_xfer_size = BFAD_MIN_SECTORS >> 1;
 985         if (max_xfer_size > BFAD_MAX_SECTORS >> 1)
 986                 max_xfer_size = BFAD_MAX_SECTORS >> 1;
 987
 988         /* Fill the driver_info info to fcs*/
 989         memset(&driver_info, 0, sizeof(driver_info));
 990         strncpy(driver_info.version, BFAD_DRIVER_VERSION,
 991                 sizeof(driver_info.version) - 1);
 992         if (host_name)
 993                 strncpy(driver_info.host_machine_name, host_name,
 994                         sizeof(driver_info.host_machine_name) - 1);
 995         if (os_name)
 996                 strncpy(driver_info.host_os_name, os_name,
 997                         sizeof(driver_info.host_os_name) - 1);
 998         if (os_patch)
 999                 strncpy(driver_info.host_os_patch, os_patch,
1000                         sizeof(driver_info.host_os_patch) - 1);
1001
1002         strncpy(driver_info.os_device_name, bfad->pci_name,
1003                 sizeof(driver_info.os_device_name) - 1);
1004
1005         /* FCS driver info init */
1006         spin_lock_irqsave(&bfad->bfad_lock, flags);
1007         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
1008
1009         if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE)
1010                 bfa_fcs_update_cfg(&bfad->bfa_fcs);
1011         else
1012                 bfa_fcs_init(&bfad->bfa_fcs);
1013
1014         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1015
1016         if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) {
1017                 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM);
1018                 if (retval != BFA_STATUS_OK)
1019                         return BFA_STATUS_FAILED;
1020         }
1021
1022         /* Setup fc host fixed attribute if the lk supports */
1023         bfad_fc_host_init(bfad->pport.im_port);
1024
1025         /* BFAD level FC4 IM specific resource allocation */
1026         retval = bfad_im_probe(bfad);
1027         if (retval != BFA_STATUS_OK) {
1028                 printk(KERN_WARNING "bfad_im_probe failed\n");
1029                 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing))
1030                         bfa_sm_set_state(bfad, bfad_sm_failed);
1031                 return BFA_STATUS_FAILED;
1032         } else
1033                 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE;
1034
1035         bfad_drv_start(bfad);
1036
1037         /* Complete pbc vport create */
1038         list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list,
1039                                 list_entry) {
1040                 struct fc_vport_identifiers vid;
1041                 struct fc_vport *fc_vport;
1042                 char pwwn_buf[BFA_STRING_32];
1043
1044                 memset(&vid, 0, sizeof(vid));
1045                 vid.roles = FC_PORT_ROLE_FCP_INITIATOR;
1046                 vid.vport_type = FC_PORTTYPE_NPIV;
1047                 vid.disable = false;
1048                 vid.node_name = wwn_to_u64((u8 *)
1049                                 (&((vport->fcs_vport).lport.port_cfg.nwwn)));
1050                 vid.port_name = wwn_to_u64((u8 *)
1051                                 (&((vport->fcs_vport).lport.port_cfg.pwwn)));
1052                 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid);
1053                 if (!fc_vport) {
1054                         wwn2str(pwwn_buf, vid.port_name);
1055                         printk(KERN_WARNING "bfad%d: failed to create pbc vport"
1056                                 " %s\n", bfad->inst_no, pwwn_buf);
1057                 }
1058                 list_del(&vport->list_entry);
1059                 kfree(vport);
1060         }
1061
1062         /*
1063          * If bfa_linkup_delay is set to -1 default; try to retrive the
1064          * value using the bfad_get_linkup_delay(); else use the
1065          * passed in module param value as the bfa_linkup_delay.
1066          */
1067         if (bfa_linkup_delay < 0) {
1068                 bfa_linkup_delay = bfad_get_linkup_delay(bfad);
1069                 bfad_rport_online_wait(bfad);
1070                 bfa_linkup_delay = -1;
1071         } else
1072                 bfad_rport_online_wait(bfad);
1073
1074         BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n");
1075
1076         return BFA_STATUS_OK;
1077 }
1078
1079 int
1080 bfad_worker(void *ptr)
1081 {
1082         struct bfad_s *bfad = ptr;
1083         unsigned long flags;
1084
1085         if (kthread_should_stop())
1086                 return 0;
1087
1088         /* Send event BFAD_E_INIT_SUCCESS */
1089         bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS);
1090
1091         spin_lock_irqsave(&bfad->bfad_lock, flags);
1092         bfad->bfad_tsk = NULL;
1093         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1094
1095         return 0;
1096 }
1097
1098 /*
1099  *  BFA driver interrupt functions
1100  */
1101 irqreturn_t
1102 bfad_intx(int irq, void *dev_id)
1103 {
1104         struct bfad_s   *bfad = dev_id;
1105         struct list_head        doneq;
1106         unsigned long   flags;
1107         bfa_boolean_t rc;
1108
1109         spin_lock_irqsave(&bfad->bfad_lock, flags);
1110         rc = bfa_intx(&bfad->bfa);
1111         if (!rc) {
1112                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1113                 return IRQ_NONE;
1114         }
1115
1116         bfa_comp_deq(&bfad->bfa, &doneq);
1117         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1118
1119         if (!list_empty(&doneq)) {
1120                 bfa_comp_process(&bfad->bfa, &doneq);
1121
1122                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1123                 bfa_comp_free(&bfad->bfa, &doneq);
1124                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1125         }
1126
1127         return IRQ_HANDLED;
1128
1129 }
1130
1131 static irqreturn_t
1132 bfad_msix(int irq, void *dev_id)
1133 {
1134         struct bfad_msix_s *vec = dev_id;
1135         struct bfad_s *bfad = vec->bfad;
1136         struct list_head doneq;
1137         unsigned long   flags;
1138
1139         spin_lock_irqsave(&bfad->bfad_lock, flags);
1140
1141         bfa_msix(&bfad->bfa, vec->msix.entry);
1142         bfa_comp_deq(&bfad->bfa, &doneq);
1143         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1144
1145         if (!list_empty(&doneq)) {
1146                 bfa_comp_process(&bfad->bfa, &doneq);
1147
1148                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1149                 bfa_comp_free(&bfad->bfa, &doneq);
1150                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1151         }
1152
1153         return IRQ_HANDLED;
1154 }
1155
1156 /*
1157  * Initialize the MSIX entry table.
1158  */
1159 static void
1160 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries,
1161                          int mask, int max_bit)
1162 {
1163         int     i;
1164         int     match = 0x00000001;
1165
1166         for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) {
1167                 if (mask & match) {
1168                         bfad->msix_tab[bfad->nvec].msix.entry = i;
1169                         bfad->msix_tab[bfad->nvec].bfad = bfad;
1170                         msix_entries[bfad->nvec].entry = i;
1171                         bfad->nvec++;
1172                 }
1173
1174                 match <<= 1;
1175         }
1176
1177 }
1178
1179 int
1180 bfad_install_msix_handler(struct bfad_s *bfad)
1181 {
1182         int i, error = 0;
1183
1184         for (i = 0; i < bfad->nvec; i++) {
1185                 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s",
1186                                 bfad->pci_name,
1187                                 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ?
1188                                 msix_name_cb[i] : msix_name_ct[i]));
1189
1190                 error = request_irq(bfad->msix_tab[i].msix.vector,
1191                                     (irq_handler_t) bfad_msix, 0,
1192                                     bfad->msix_tab[i].name, &bfad->msix_tab[i]);
1193                 bfa_trc(bfad, i);
1194                 bfa_trc(bfad, bfad->msix_tab[i].msix.vector);
1195                 if (error) {
1196                         int     j;
1197
1198                         for (j = 0; j < i; j++)
1199                                 free_irq(bfad->msix_tab[j].msix.vector,
1200                                                 &bfad->msix_tab[j]);
1201
1202                         bfad->bfad_flags &= ~BFAD_MSIX_ON;
1203                         pci_disable_msix(bfad->pcidev);
1204
1205                         return 1;
1206                 }
1207         }
1208
1209         return 0;
1210 }
1211
1212 /*
1213  * Setup MSIX based interrupt.
1214  */
1215 int
1216 bfad_setup_intr(struct bfad_s *bfad)
1217 {
1218         int error;
1219         u32 mask = 0, i, num_bit = 0, max_bit = 0;
1220         struct msix_entry msix_entries[MAX_MSIX_ENTRY];
1221         struct pci_dev *pdev = bfad->pcidev;
1222         u16     reg;
1223
1224         /* Call BFA to get the msix map for this PCI function.  */
1225         bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit);
1226
1227         /* Set up the msix entry table */
1228         bfad_init_msix_entry(bfad, msix_entries, mask, max_bit);
1229
1230         if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
1231            (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
1232
1233                 error = pci_enable_msix_exact(bfad->pcidev,
1234                                               msix_entries, bfad->nvec);
1235                 /* In CT1 & CT2, try to allocate just one vector */
1236                 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
1237                         printk(KERN_WARNING "bfa %s: trying one msix "
1238                                "vector failed to allocate %d[%d]\n",
1239                                bfad->pci_name, bfad->nvec, error);
1240                         bfad->nvec = 1;
1241                         error = pci_enable_msix_exact(bfad->pcidev,
1242                                                       msix_entries, 1);
1243                 }
1244
1245                 if (error) {
1246                         printk(KERN_WARNING "bfad%d: "
1247                                "pci_enable_msix_exact failed (%d), "
1248                                "use line based.\n",
1249                                 bfad->inst_no, error);
1250                         goto line_based;
1251                 }
1252
1253                 /* Disable INTX in MSI-X mode */
1254                 pci_read_config_word(pdev, PCI_COMMAND, &reg);
1255
1256                 if (!(reg & PCI_COMMAND_INTX_DISABLE))
1257                         pci_write_config_word(pdev, PCI_COMMAND,
1258                                 reg | PCI_COMMAND_INTX_DISABLE);
1259
1260                 /* Save the vectors */
1261                 for (i = 0; i < bfad->nvec; i++) {
1262                         bfa_trc(bfad, msix_entries[i].vector);
1263                         bfad->msix_tab[i].msix.vector = msix_entries[i].vector;
1264                 }
1265
1266                 bfa_msix_init(&bfad->bfa, bfad->nvec);
1267
1268                 bfad->bfad_flags |= BFAD_MSIX_ON;
1269
1270                 return 0;
1271         }
1272
1273 line_based:
1274         error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
1275                             BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
1276         if (error)
1277                 return error;
1278
1279         bfad->bfad_flags |= BFAD_INTX_ON;
1280
1281         return 0;
1282 }
1283
1284 void
1285 bfad_remove_intr(struct bfad_s *bfad)
1286 {
1287         int     i;
1288
1289         if (bfad->bfad_flags & BFAD_MSIX_ON) {
1290                 for (i = 0; i < bfad->nvec; i++)
1291                         free_irq(bfad->msix_tab[i].msix.vector,
1292                                         &bfad->msix_tab[i]);
1293
1294                 pci_disable_msix(bfad->pcidev);
1295                 bfad->bfad_flags &= ~BFAD_MSIX_ON;
1296         } else if (bfad->bfad_flags & BFAD_INTX_ON) {
1297                 free_irq(bfad->pcidev->irq, bfad);
1298         }
1299 }
1300
1301 /*
1302  * PCI probe entry.
1303  */
1304 int
1305 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid)
1306 {
1307         struct bfad_s   *bfad;
1308         int             error = -ENODEV, retval, i;
1309
1310         /* For single port cards - only claim function 0 */
1311         if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) &&
1312                 (PCI_FUNC(pdev->devfn) != 0))
1313                 return -ENODEV;
1314
1315         bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL);
1316         if (!bfad) {
1317                 error = -ENOMEM;
1318                 goto out;
1319         }
1320
1321         bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL);
1322         if (!bfad->trcmod) {
1323                 printk(KERN_WARNING "Error alloc trace buffer!\n");
1324                 error = -ENOMEM;
1325                 goto out_alloc_trace_failure;
1326         }
1327
1328         /* TRACE INIT */
1329         bfa_trc_init(bfad->trcmod);
1330         bfa_trc(bfad, bfad_inst);
1331
1332         /* AEN INIT */
1333         INIT_LIST_HEAD(&bfad->free_aen_q);
1334         INIT_LIST_HEAD(&bfad->active_aen_q);
1335         for (i = 0; i < BFA_AEN_MAX_ENTRY; i++)
1336                 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q);
1337
1338         if (!(bfad_load_fwimg(pdev))) {
1339                 kfree(bfad->trcmod);
1340                 goto out_alloc_trace_failure;
1341         }
1342
1343         retval = bfad_pci_init(pdev, bfad);
1344         if (retval) {
1345                 printk(KERN_WARNING "bfad_pci_init failure!\n");
1346                 error = retval;
1347                 goto out_pci_init_failure;
1348         }
1349
1350         mutex_lock(&bfad_mutex);
1351         bfad->inst_no = bfad_inst++;
1352         list_add_tail(&bfad->list_entry, &bfad_list);
1353         mutex_unlock(&bfad_mutex);
1354
1355         /* Initializing the state machine: State set to uninit */
1356         bfa_sm_set_state(bfad, bfad_sm_uninit);
1357
1358         spin_lock_init(&bfad->bfad_lock);
1359         spin_lock_init(&bfad->bfad_aen_spinlock);
1360
1361         pci_set_drvdata(pdev, bfad);
1362
1363         bfad->ref_count = 0;
1364         bfad->pport.bfad = bfad;
1365         INIT_LIST_HEAD(&bfad->pbc_vport_list);
1366         INIT_LIST_HEAD(&bfad->vport_list);
1367
1368         /* Setup the debugfs node for this bfad */
1369         if (bfa_debugfs_enable)
1370                 bfad_debugfs_init(&bfad->pport);
1371
1372         retval = bfad_drv_init(bfad);
1373         if (retval != BFA_STATUS_OK)
1374                 goto out_drv_init_failure;
1375
1376         bfa_sm_send_event(bfad, BFAD_E_CREATE);
1377
1378         if (bfa_sm_cmp_state(bfad, bfad_sm_uninit))
1379                 goto out_bfad_sm_failure;
1380
1381         return 0;
1382
1383 out_bfad_sm_failure:
1384         bfad_hal_mem_release(bfad);
1385 out_drv_init_failure:
1386         /* Remove the debugfs node for this bfad */
1387         kfree(bfad->regdata);
1388         bfad_debugfs_exit(&bfad->pport);
1389         mutex_lock(&bfad_mutex);
1390         bfad_inst--;
1391         list_del(&bfad->list_entry);
1392         mutex_unlock(&bfad_mutex);
1393         bfad_pci_uninit(pdev, bfad);
1394 out_pci_init_failure:
1395         kfree(bfad->trcmod);
1396 out_alloc_trace_failure:
1397         kfree(bfad);
1398 out:
1399         return error;
1400 }
1401
1402 /*
1403  * PCI remove entry.
1404  */
1405 void
1406 bfad_pci_remove(struct pci_dev *pdev)
1407 {
1408         struct bfad_s         *bfad = pci_get_drvdata(pdev);
1409         unsigned long   flags;
1410
1411         bfa_trc(bfad, bfad->inst_no);
1412
1413         spin_lock_irqsave(&bfad->bfad_lock, flags);
1414         if (bfad->bfad_tsk != NULL) {
1415                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1416                 kthread_stop(bfad->bfad_tsk);
1417         } else {
1418                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1419         }
1420
1421         /* Send Event BFAD_E_STOP */
1422         bfa_sm_send_event(bfad, BFAD_E_STOP);
1423
1424         /* Driver detach and dealloc mem */
1425         spin_lock_irqsave(&bfad->bfad_lock, flags);
1426         bfa_detach(&bfad->bfa);
1427         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1428         bfad_hal_mem_release(bfad);
1429
1430         /* Remove the debugfs node for this bfad */
1431         kfree(bfad->regdata);
1432         bfad_debugfs_exit(&bfad->pport);
1433
1434         /* Cleaning the BFAD instance */
1435         mutex_lock(&bfad_mutex);
1436         bfad_inst--;
1437         list_del(&bfad->list_entry);
1438         mutex_unlock(&bfad_mutex);
1439         bfad_pci_uninit(pdev, bfad);
1440
1441         kfree(bfad->trcmod);
1442         kfree(bfad);
1443 }
1444
1445 /*
1446  * PCI Error Recovery entry, error detected.
1447  */
1448 static pci_ers_result_t
1449 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
1450 {
1451         struct bfad_s *bfad = pci_get_drvdata(pdev);
1452         unsigned long   flags;
1453         pci_ers_result_t ret = PCI_ERS_RESULT_NONE;
1454
1455         dev_printk(KERN_ERR, &pdev->dev,
1456                    "error detected state: %d - flags: 0x%x\n",
1457                    state, bfad->bfad_flags);
1458
1459         switch (state) {
1460         case pci_channel_io_normal: /* non-fatal error */
1461                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1462                 bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1463                 /* Suspend/fail all bfa operations */
1464                 bfa_ioc_suspend(&bfad->bfa.ioc);
1465                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1466                 del_timer_sync(&bfad->hal_tmo);
1467                 ret = PCI_ERS_RESULT_CAN_RECOVER;
1468                 break;
1469         case pci_channel_io_frozen: /* fatal error */
1470                 init_completion(&bfad->comp);
1471                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1472                 bfad->bfad_flags |= BFAD_EEH_BUSY;
1473                 /* Suspend/fail all bfa operations */
1474                 bfa_ioc_suspend(&bfad->bfa.ioc);
1475                 bfa_fcs_stop(&bfad->bfa_fcs);
1476                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1477                 wait_for_completion(&bfad->comp);
1478
1479                 bfad_remove_intr(bfad);
1480                 del_timer_sync(&bfad->hal_tmo);
1481                 pci_disable_device(pdev);
1482                 ret = PCI_ERS_RESULT_NEED_RESET;
1483                 break;
1484         case pci_channel_io_perm_failure: /* PCI Card is DEAD */
1485                 spin_lock_irqsave(&bfad->bfad_lock, flags);
1486                 bfad->bfad_flags |= BFAD_EEH_BUSY |
1487                                     BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE;
1488                 spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1489
1490                 /* If the error_detected handler is called with the reason
1491                  * pci_channel_io_perm_failure - it will subsequently call
1492                  * pci_remove() entry point to remove the pci device from the
1493                  * system - So defer the cleanup to pci_remove(); cleaning up
1494                  * here causes inconsistent state during pci_remove().
1495                  */
1496                 ret = PCI_ERS_RESULT_DISCONNECT;
1497                 break;
1498         default:
1499                 WARN_ON(1);
1500         }
1501
1502         return ret;
1503 }
1504
1505 int
1506 restart_bfa(struct bfad_s *bfad)
1507 {
1508         unsigned long flags;
1509         struct pci_dev *pdev = bfad->pcidev;
1510
1511         bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg,
1512                    &bfad->meminfo, &bfad->hal_pcidev);
1513
1514         /* Enable Interrupt and wait bfa_init completion */
1515         if (bfad_setup_intr(bfad)) {
1516                 dev_printk(KERN_WARNING, &pdev->dev,
1517                            "%s: bfad_setup_intr failed\n", bfad->pci_name);
1518                 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED);
1519                 return -1;
1520         }
1521
1522         init_completion(&bfad->comp);
1523         spin_lock_irqsave(&bfad->bfad_lock, flags);
1524         bfa_iocfc_init(&bfad->bfa);
1525         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1526
1527         /* Set up interrupt handler for each vectors */
1528         if ((bfad->bfad_flags & BFAD_MSIX_ON) &&
1529             bfad_install_msix_handler(bfad))
1530                 dev_printk(KERN_WARNING, &pdev->dev,
1531                            "%s: install_msix failed.\n", bfad->pci_name);
1532
1533         bfad_init_timer(bfad);
1534         wait_for_completion(&bfad->comp);
1535         bfad_drv_start(bfad);
1536
1537         return 0;
1538 }
1539
1540 /*
1541  * PCI Error Recovery entry, re-initialize the chip.
1542  */
1543 static pci_ers_result_t
1544 bfad_pci_slot_reset(struct pci_dev *pdev)
1545 {
1546         struct bfad_s *bfad = pci_get_drvdata(pdev);
1547         u8 byte;
1548
1549         dev_printk(KERN_ERR, &pdev->dev,
1550                    "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags);
1551
1552         if (pci_enable_device(pdev)) {
1553                 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable "
1554                            "PCI device after reset.\n");
1555                 return PCI_ERS_RESULT_DISCONNECT;
1556         }
1557
1558         pci_restore_state(pdev);
1559
1560         /*
1561          * Read some byte (e.g. DMA max. payload size which can't
1562          * be 0xff any time) to make sure - we did not hit another PCI error
1563          * in the middle of recovery. If we did, then declare permanent failure.
1564          */
1565         pci_read_config_byte(pdev, 0x68, &byte);
1566         if (byte == 0xff) {
1567                 dev_printk(KERN_ERR, &pdev->dev,
1568                            "slot_reset failed ... got another PCI error !\n");
1569                 goto out_disable_device;
1570         }
1571
1572         pci_save_state(pdev);
1573         pci_set_master(pdev);
1574
1575         if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(64)) != 0)
1576                 if (pci_set_dma_mask(bfad->pcidev, DMA_BIT_MASK(32)) != 0)
1577                         goto out_disable_device;
1578
1579         pci_cleanup_aer_uncorrect_error_status(pdev);
1580
1581         if (restart_bfa(bfad) == -1)
1582                 goto out_disable_device;
1583
1584         pci_enable_pcie_error_reporting(pdev);
1585         dev_printk(KERN_WARNING, &pdev->dev,
1586                    "slot_reset completed  flags: 0x%x!\n", bfad->bfad_flags);
1587
1588         return PCI_ERS_RESULT_RECOVERED;
1589
1590 out_disable_device:
1591         pci_disable_device(pdev);
1592         return PCI_ERS_RESULT_DISCONNECT;
1593 }
1594
1595 static pci_ers_result_t
1596 bfad_pci_mmio_enabled(struct pci_dev *pdev)
1597 {
1598         unsigned long   flags;
1599         struct bfad_s *bfad = pci_get_drvdata(pdev);
1600
1601         dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n");
1602
1603         /* Fetch FW diagnostic information */
1604         bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc);
1605
1606         /* Cancel all pending IOs */
1607         spin_lock_irqsave(&bfad->bfad_lock, flags);
1608         init_completion(&bfad->comp);
1609         bfa_fcs_stop(&bfad->bfa_fcs);
1610         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1611         wait_for_completion(&bfad->comp);
1612
1613         bfad_remove_intr(bfad);
1614         del_timer_sync(&bfad->hal_tmo);
1615         pci_disable_device(pdev);
1616
1617         return PCI_ERS_RESULT_NEED_RESET;
1618 }
1619
1620 static void
1621 bfad_pci_resume(struct pci_dev *pdev)
1622 {
1623         unsigned long   flags;
1624         struct bfad_s *bfad = pci_get_drvdata(pdev);
1625
1626         dev_printk(KERN_WARNING, &pdev->dev, "resume\n");
1627
1628         /* wait until the link is online */
1629         bfad_rport_online_wait(bfad);
1630
1631         spin_lock_irqsave(&bfad->bfad_lock, flags);
1632         bfad->bfad_flags &= ~BFAD_EEH_BUSY;
1633         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
1634 }
1635
1636 struct pci_device_id bfad_id_table[] = {
1637         {
1638                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1639                 .device = BFA_PCI_DEVICE_ID_FC_8G2P,
1640                 .subvendor = PCI_ANY_ID,
1641                 .subdevice = PCI_ANY_ID,
1642         },
1643         {
1644                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1645                 .device = BFA_PCI_DEVICE_ID_FC_8G1P,
1646                 .subvendor = PCI_ANY_ID,
1647                 .subdevice = PCI_ANY_ID,
1648         },
1649         {
1650                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1651                 .device = BFA_PCI_DEVICE_ID_CT,
1652                 .subvendor = PCI_ANY_ID,
1653                 .subdevice = PCI_ANY_ID,
1654                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1655                 .class_mask = ~0,
1656         },
1657         {
1658                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1659                 .device = BFA_PCI_DEVICE_ID_CT_FC,
1660                 .subvendor = PCI_ANY_ID,
1661                 .subdevice = PCI_ANY_ID,
1662                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1663                 .class_mask = ~0,
1664         },
1665         {
1666                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1667                 .device = BFA_PCI_DEVICE_ID_CT2,
1668                 .subvendor = PCI_ANY_ID,
1669                 .subdevice = PCI_ANY_ID,
1670                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1671                 .class_mask = ~0,
1672         },
1673
1674         {
1675                 .vendor = BFA_PCI_VENDOR_ID_BROCADE,
1676                 .device = BFA_PCI_DEVICE_ID_CT2_QUAD,
1677                 .subvendor = PCI_ANY_ID,
1678                 .subdevice = PCI_ANY_ID,
1679                 .class = (PCI_CLASS_SERIAL_FIBER << 8),
1680                 .class_mask = ~0,
1681         },
1682         {0, 0},
1683 };
1684
1685 MODULE_DEVICE_TABLE(pci, bfad_id_table);
1686
1687 /*
1688  * PCI error recovery handlers.
1689  */
1690 static struct pci_error_handlers bfad_err_handler = {
1691         .error_detected = bfad_pci_error_detected,
1692         .slot_reset = bfad_pci_slot_reset,
1693         .mmio_enabled = bfad_pci_mmio_enabled,
1694         .resume = bfad_pci_resume,
1695 };
1696
1697 static struct pci_driver bfad_pci_driver = {
1698         .name = BFAD_DRIVER_NAME,
1699         .id_table = bfad_id_table,
1700         .probe = bfad_pci_probe,
1701         .remove = bfad_pci_remove,
1702         .err_handler = &bfad_err_handler,
1703 };
1704
1705 /*
1706  * Driver module init.
1707  */
1708 static int __init
1709 bfad_init(void)
1710 {
1711         int             error = 0;
1712
1713         printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n",
1714                         BFAD_DRIVER_VERSION);
1715
1716         if (num_sgpgs > 0)
1717                 num_sgpgs_parm = num_sgpgs;
1718
1719         error = bfad_im_module_init();
1720         if (error) {
1721                 error = -ENOMEM;
1722                 printk(KERN_WARNING "bfad_im_module_init failure\n");
1723                 goto ext;
1724         }
1725
1726         if (strcmp(FCPI_NAME, " fcpim") == 0)
1727                 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM;
1728
1729         bfa_auto_recover = ioc_auto_recover;
1730         bfa_fcs_rport_set_del_timeout(rport_del_timeout);
1731         bfa_fcs_rport_set_max_logins(max_rport_logins);
1732
1733         error = pci_register_driver(&bfad_pci_driver);
1734         if (error) {
1735                 printk(KERN_WARNING "pci_register_driver failure\n");
1736                 goto ext;
1737         }
1738
1739         return 0;
1740
1741 ext:
1742         bfad_im_module_exit();
1743         return error;
1744 }
1745
1746 /*
1747  * Driver module exit.
1748  */
1749 static void __exit
1750 bfad_exit(void)
1751 {
1752         pci_unregister_driver(&bfad_pci_driver);
1753         bfad_im_module_exit();
1754         bfad_free_fwimg();
1755 }
1756
1757 /* Firmware handling */
1758 static void
1759 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image,
1760                 u32 *bfi_image_size, char *fw_name)
1761 {
1762         const struct firmware *fw;
1763
1764         if (request_firmware(&fw, fw_name, &pdev->dev)) {
1765                 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name);
1766                 *bfi_image = NULL;
1767                 goto out;
1768         }
1769
1770         *bfi_image = vmalloc(fw->size);
1771         if (NULL == *bfi_image) {
1772                 printk(KERN_ALERT "Fail to allocate buffer for fw image "
1773                         "size=%x!\n", (u32) fw->size);
1774                 goto out;
1775         }
1776
1777         memcpy(*bfi_image, fw->data, fw->size);
1778         *bfi_image_size = fw->size/sizeof(u32);
1779 out:
1780         release_firmware(fw);
1781 }
1782
1783 static u32 *
1784 bfad_load_fwimg(struct pci_dev *pdev)
1785 {
1786         if (bfa_asic_id_ct2(pdev->device)) {
1787                 if (bfi_image_ct2_size == 0)
1788                         bfad_read_firmware(pdev, &bfi_image_ct2,
1789                                 &bfi_image_ct2_size, BFAD_FW_FILE_CT2);
1790                 return bfi_image_ct2;
1791         } else if (bfa_asic_id_ct(pdev->device)) {
1792                 if (bfi_image_ct_size == 0)
1793                         bfad_read_firmware(pdev, &bfi_image_ct,
1794                                 &bfi_image_ct_size, BFAD_FW_FILE_CT);
1795                 return bfi_image_ct;
1796         } else if (bfa_asic_id_cb(pdev->device)) {
1797                 if (bfi_image_cb_size == 0)
1798                         bfad_read_firmware(pdev, &bfi_image_cb,
1799                                 &bfi_image_cb_size, BFAD_FW_FILE_CB);
1800                 return bfi_image_cb;
1801         }
1802
1803         return NULL;
1804 }
1805
1806 static void
1807 bfad_free_fwimg(void)
1808 {
1809         if (bfi_image_ct2_size && bfi_image_ct2)
1810                 vfree(bfi_image_ct2);
1811         if (bfi_image_ct_size && bfi_image_ct)
1812                 vfree(bfi_image_ct);
1813         if (bfi_image_cb_size && bfi_image_cb)
1814                 vfree(bfi_image_cb);
1815 }
1816
1817 module_init(bfad_init);
1818 module_exit(bfad_exit);
1819 MODULE_LICENSE("GPL");
1820 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME);
1821 MODULE_AUTHOR("Brocade Communications Systems, Inc.");
1822 MODULE_VERSION(BFAD_DRIVER_VERSION);