1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. 4 * Copyright (c) 2014- QLogic Corporation. 5 * All rights reserved 6 * www.qlogic.com 7 * 8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. 9 */ 10 11 /* 12 * bfad.c Linux driver PCI interface module. 13 */ 14 #include <linux/module.h> 15 #include <linux/kthread.h> 16 #include <linux/errno.h> 17 #include <linux/sched.h> 18 #include <linux/init.h> 19 #include <linux/fs.h> 20 #include <linux/pci.h> 21 #include <linux/firmware.h> 22 #include <linux/uaccess.h> 23 #include <asm/fcntl.h> 24 25 #include "bfad_drv.h" 26 #include "bfad_im.h" 27 #include "bfa_fcs.h" 28 #include "bfa_defs.h" 29 #include "bfa.h" 30 31 BFA_TRC_FILE(LDRV, BFAD); 32 DEFINE_MUTEX(bfad_mutex); 33 LIST_HEAD(bfad_list); 34 35 static int bfad_inst; 36 static int num_sgpgs_parm; 37 int supported_fc4s; 38 char *host_name, *os_name, *os_patch; 39 int num_rports, num_ios, num_tms; 40 int num_fcxps, num_ufbufs; 41 int reqq_size, rspq_size, num_sgpgs; 42 int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT; 43 int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH; 44 int bfa_io_max_sge = BFAD_IO_MAX_SGE; 45 int bfa_log_level = 3; /* WARNING log level */ 46 int ioc_auto_recover = BFA_TRUE; 47 int bfa_linkup_delay = -1; 48 int fdmi_enable = BFA_TRUE; 49 int pcie_max_read_reqsz; 50 int bfa_debugfs_enable = 1; 51 int msix_disable_cb = 0, msix_disable_ct = 0; 52 int max_xfer_size = BFAD_MAX_SECTORS >> 1; 53 static int max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS; 54 55 /* Firmware releated */ 56 u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; 57 u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2; 58 59 #define BFAD_FW_FILE_CB "cbfw-3.2.5.1.bin" 60 #define BFAD_FW_FILE_CT "ctfw-3.2.5.1.bin" 61 #define BFAD_FW_FILE_CT2 "ct2fw-3.2.5.1.bin" 62 63 static u32 *bfad_load_fwimg(struct pci_dev *pdev); 64 static void bfad_free_fwimg(void); 65 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 66 u32 *bfi_image_size, char *fw_name); 67 68 static const char *msix_name_ct[] = { 69 "ctrl", 70 "cpe0", "cpe1", "cpe2", "cpe3", 71 "rme0", "rme1", "rme2", "rme3" }; 72 73 static const char *msix_name_cb[] = { 74 "cpe0", "cpe1", "cpe2", "cpe3", 75 "rme0", "rme1", "rme2", "rme3", 76 "eemc", "elpu0", "elpu1", "epss", "mlpu" }; 77 78 MODULE_FIRMWARE(BFAD_FW_FILE_CB); 79 MODULE_FIRMWARE(BFAD_FW_FILE_CT); 80 MODULE_FIRMWARE(BFAD_FW_FILE_CT2); 81 82 module_param(os_name, charp, S_IRUGO | S_IWUSR); 83 MODULE_PARM_DESC(os_name, "OS name of the hba host machine"); 84 module_param(os_patch, charp, S_IRUGO | S_IWUSR); 85 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine"); 86 module_param(host_name, charp, S_IRUGO | S_IWUSR); 87 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine"); 88 module_param(num_rports, int, S_IRUGO | S_IWUSR); 89 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port " 90 "(physical/logical), default=1024"); 91 module_param(num_ios, int, S_IRUGO | S_IWUSR); 92 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000"); 93 module_param(num_tms, int, S_IRUGO | S_IWUSR); 94 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128"); 95 module_param(num_fcxps, int, S_IRUGO | S_IWUSR); 96 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64"); 97 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); 98 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame " 99 "buffers, default=64"); 100 module_param(reqq_size, int, S_IRUGO | S_IWUSR); 101 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, " 102 "default=256"); 103 module_param(rspq_size, int, S_IRUGO | S_IWUSR); 104 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, " 105 "default=64"); 106 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); 107 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048"); 108 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); 109 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, " 110 "Range[>0]"); 111 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); 112 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]"); 113 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); 114 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255"); 115 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR); 116 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, " 117 "Range[Critical:1|Error:2|Warning:3|Info:4]"); 118 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); 119 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, " 120 "Range[off:0|on:1]"); 121 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); 122 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for " 123 "boot port. Otherwise 10 secs in RHEL4 & 0 for " 124 "[RHEL5, SLES10, ESX40] Range[>0]"); 125 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR); 126 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts for QLogic-415/425/815/825 cards, default=0 Range[false:0|true:1]"); 127 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR); 128 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts if possible for QLogic-1010/1020/804/1007/902/1741 cards, default=0, Range[false:0|true:1]"); 129 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR); 130 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, " 131 "Range[false:0|true:1]"); 132 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR); 133 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " 134 "(use system setting), Range[128|256|512|1024|2048|4096]"); 135 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); 136 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," 137 " Range[false:0|true:1]"); 138 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); 139 MODULE_PARM_DESC(max_xfer_size, "default=32MB," 140 " Range[64k|128k|256k|512k|1024k|2048k]"); 141 module_param(max_rport_logins, int, S_IRUGO | S_IWUSR); 142 MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024"); 143 144 static void 145 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); 146 static void 147 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event); 148 static void 149 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event); 150 static void 151 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event); 152 static void 153 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event); 154 static void 155 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event); 156 static void 157 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event); 158 159 /* 160 * Beginning state for the driver instance, awaiting the pci_probe event 161 */ 162 static void 163 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event) 164 { 165 bfa_trc(bfad, event); 166 167 switch (event) { 168 case BFAD_E_CREATE: 169 bfa_sm_set_state(bfad, bfad_sm_created); 170 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad, 171 "%s", "bfad_worker"); 172 if (IS_ERR(bfad->bfad_tsk)) { 173 printk(KERN_INFO "bfad[%d]: Kernel thread " 174 "creation failed!\n", bfad->inst_no); 175 bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED); 176 } 177 bfa_sm_send_event(bfad, BFAD_E_INIT); 178 break; 179 180 case BFAD_E_STOP: 181 /* Ignore stop; already in uninit */ 182 break; 183 184 default: 185 bfa_sm_fault(bfad, event); 186 } 187 } 188 189 /* 190 * Driver Instance is created, awaiting event INIT to initialize the bfad 191 */ 192 static void 193 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event) 194 { 195 unsigned long flags; 196 bfa_status_t ret; 197 198 bfa_trc(bfad, event); 199 200 switch (event) { 201 case BFAD_E_INIT: 202 bfa_sm_set_state(bfad, bfad_sm_initializing); 203 204 init_completion(&bfad->comp); 205 206 /* Enable Interrupt and wait bfa_init completion */ 207 if (bfad_setup_intr(bfad)) { 208 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n", 209 bfad->inst_no); 210 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); 211 break; 212 } 213 214 spin_lock_irqsave(&bfad->bfad_lock, flags); 215 bfa_iocfc_init(&bfad->bfa); 216 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 217 218 /* Set up interrupt handler for each vectors */ 219 if ((bfad->bfad_flags & BFAD_MSIX_ON) && 220 bfad_install_msix_handler(bfad)) { 221 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n", 222 __func__, bfad->inst_no); 223 } 224 225 bfad_init_timer(bfad); 226 227 wait_for_completion(&bfad->comp); 228 229 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) { 230 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); 231 } else { 232 printk(KERN_WARNING 233 "bfa %s: bfa init failed\n", 234 bfad->pci_name); 235 spin_lock_irqsave(&bfad->bfad_lock, flags); 236 bfa_fcs_init(&bfad->bfa_fcs); 237 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 238 239 ret = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); 240 if (ret != BFA_STATUS_OK) { 241 init_completion(&bfad->comp); 242 243 spin_lock_irqsave(&bfad->bfad_lock, flags); 244 bfad->pport.flags |= BFAD_PORT_DELETE; 245 bfa_fcs_exit(&bfad->bfa_fcs); 246 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 247 248 wait_for_completion(&bfad->comp); 249 250 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); 251 break; 252 } 253 bfad->bfad_flags |= BFAD_HAL_INIT_FAIL; 254 bfa_sm_send_event(bfad, BFAD_E_HAL_INIT_FAILED); 255 } 256 257 break; 258 259 case BFAD_E_KTHREAD_CREATE_FAILED: 260 bfa_sm_set_state(bfad, bfad_sm_uninit); 261 break; 262 263 default: 264 bfa_sm_fault(bfad, event); 265 } 266 } 267 268 static void 269 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event) 270 { 271 int retval; 272 unsigned long flags; 273 274 bfa_trc(bfad, event); 275 276 switch (event) { 277 case BFAD_E_INIT_SUCCESS: 278 kthread_stop(bfad->bfad_tsk); 279 spin_lock_irqsave(&bfad->bfad_lock, flags); 280 bfad->bfad_tsk = NULL; 281 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 282 283 retval = bfad_start_ops(bfad); 284 if (retval != BFA_STATUS_OK) { 285 bfa_sm_set_state(bfad, bfad_sm_failed); 286 break; 287 } 288 bfa_sm_set_state(bfad, bfad_sm_operational); 289 break; 290 291 case BFAD_E_INIT_FAILED: 292 bfa_sm_set_state(bfad, bfad_sm_uninit); 293 kthread_stop(bfad->bfad_tsk); 294 spin_lock_irqsave(&bfad->bfad_lock, flags); 295 bfad->bfad_tsk = NULL; 296 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 297 break; 298 299 case BFAD_E_HAL_INIT_FAILED: 300 bfa_sm_set_state(bfad, bfad_sm_failed); 301 break; 302 default: 303 bfa_sm_fault(bfad, event); 304 } 305 } 306 307 static void 308 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event) 309 { 310 int retval; 311 312 bfa_trc(bfad, event); 313 314 switch (event) { 315 case BFAD_E_INIT_SUCCESS: 316 retval = bfad_start_ops(bfad); 317 if (retval != BFA_STATUS_OK) 318 break; 319 bfa_sm_set_state(bfad, bfad_sm_operational); 320 break; 321 322 case BFAD_E_STOP: 323 bfa_sm_set_state(bfad, bfad_sm_fcs_exit); 324 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); 325 break; 326 327 case BFAD_E_EXIT_COMP: 328 bfa_sm_set_state(bfad, bfad_sm_uninit); 329 bfad_remove_intr(bfad); 330 del_timer_sync(&bfad->hal_tmo); 331 break; 332 333 default: 334 bfa_sm_fault(bfad, event); 335 } 336 } 337 338 static void 339 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event) 340 { 341 bfa_trc(bfad, event); 342 343 switch (event) { 344 case BFAD_E_STOP: 345 bfa_sm_set_state(bfad, bfad_sm_fcs_exit); 346 bfad_fcs_stop(bfad); 347 break; 348 349 default: 350 bfa_sm_fault(bfad, event); 351 } 352 } 353 354 static void 355 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event) 356 { 357 bfa_trc(bfad, event); 358 359 switch (event) { 360 case BFAD_E_FCS_EXIT_COMP: 361 bfa_sm_set_state(bfad, bfad_sm_stopping); 362 bfad_stop(bfad); 363 break; 364 365 default: 366 bfa_sm_fault(bfad, event); 367 } 368 } 369 370 static void 371 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event) 372 { 373 bfa_trc(bfad, event); 374 375 switch (event) { 376 case BFAD_E_EXIT_COMP: 377 bfa_sm_set_state(bfad, bfad_sm_uninit); 378 bfad_remove_intr(bfad); 379 del_timer_sync(&bfad->hal_tmo); 380 bfad_im_probe_undo(bfad); 381 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; 382 bfad_uncfg_pport(bfad); 383 break; 384 385 default: 386 bfa_sm_fault(bfad, event); 387 break; 388 } 389 } 390 391 /* 392 * BFA callbacks 393 */ 394 void 395 bfad_hcb_comp(void *arg, bfa_status_t status) 396 { 397 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg; 398 399 fcomp->status = status; 400 complete(&fcomp->comp); 401 } 402 403 /* 404 * bfa_init callback 405 */ 406 void 407 bfa_cb_init(void *drv, bfa_status_t init_status) 408 { 409 struct bfad_s *bfad = drv; 410 411 if (init_status == BFA_STATUS_OK) { 412 bfad->bfad_flags |= BFAD_HAL_INIT_DONE; 413 414 /* 415 * If BFAD_HAL_INIT_FAIL flag is set: 416 * Wake up the kernel thread to start 417 * the bfad operations after HAL init done 418 */ 419 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) { 420 bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL; 421 wake_up_process(bfad->bfad_tsk); 422 } 423 } 424 425 complete(&bfad->comp); 426 } 427 428 /* 429 * BFA_FCS callbacks 430 */ 431 struct bfad_port_s * 432 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port, 433 enum bfa_lport_role roles, struct bfad_vf_s *vf_drv, 434 struct bfad_vport_s *vp_drv) 435 { 436 bfa_status_t rc; 437 struct bfad_port_s *port_drv; 438 439 if (!vp_drv && !vf_drv) { 440 port_drv = &bfad->pport; 441 port_drv->pvb_type = BFAD_PORT_PHYS_BASE; 442 } else if (!vp_drv && vf_drv) { 443 port_drv = &vf_drv->base_port; 444 port_drv->pvb_type = BFAD_PORT_VF_BASE; 445 } else if (vp_drv && !vf_drv) { 446 port_drv = &vp_drv->drv_port; 447 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT; 448 } else { 449 port_drv = &vp_drv->drv_port; 450 port_drv->pvb_type = BFAD_PORT_VF_VPORT; 451 } 452 453 port_drv->fcs_port = port; 454 port_drv->roles = roles; 455 456 if (roles & BFA_LPORT_ROLE_FCP_IM) { 457 rc = bfad_im_port_new(bfad, port_drv); 458 if (rc != BFA_STATUS_OK) { 459 bfad_im_port_delete(bfad, port_drv); 460 port_drv = NULL; 461 } 462 } 463 464 return port_drv; 465 } 466 467 /* 468 * FCS RPORT alloc callback, after successful PLOGI by FCS 469 */ 470 bfa_status_t 471 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport, 472 struct bfad_rport_s **rport_drv) 473 { 474 bfa_status_t rc = BFA_STATUS_OK; 475 476 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC); 477 if (*rport_drv == NULL) { 478 rc = BFA_STATUS_ENOMEM; 479 goto ext; 480 } 481 482 *rport = &(*rport_drv)->fcs_rport; 483 484 ext: 485 return rc; 486 } 487 488 /* 489 * FCS PBC VPORT Create 490 */ 491 void 492 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport) 493 { 494 495 struct bfa_lport_cfg_s port_cfg = {0}; 496 struct bfad_vport_s *vport; 497 int rc; 498 499 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_ATOMIC); 500 if (!vport) { 501 bfa_trc(bfad, 0); 502 return; 503 } 504 505 vport->drv_port.bfad = bfad; 506 port_cfg.roles = BFA_LPORT_ROLE_FCP_IM; 507 port_cfg.pwwn = pbc_vport.vp_pwwn; 508 port_cfg.nwwn = pbc_vport.vp_nwwn; 509 port_cfg.preboot_vp = BFA_TRUE; 510 511 rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0, 512 &port_cfg, vport); 513 514 if (rc != BFA_STATUS_OK) { 515 bfa_trc(bfad, 0); 516 return; 517 } 518 519 list_add_tail(&vport->list_entry, &bfad->pbc_vport_list); 520 } 521 522 void 523 bfad_hal_mem_release(struct bfad_s *bfad) 524 { 525 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; 526 struct bfa_mem_dma_s *dma_info, *dma_elem; 527 struct bfa_mem_kva_s *kva_info, *kva_elem; 528 struct list_head *dm_qe, *km_qe; 529 530 dma_info = &hal_meminfo->dma_info; 531 kva_info = &hal_meminfo->kva_info; 532 533 /* Iterate through the KVA meminfo queue */ 534 list_for_each(km_qe, &kva_info->qe) { 535 kva_elem = (struct bfa_mem_kva_s *) km_qe; 536 vfree(kva_elem->kva); 537 } 538 539 /* Iterate through the DMA meminfo queue */ 540 list_for_each(dm_qe, &dma_info->qe) { 541 dma_elem = (struct bfa_mem_dma_s *) dm_qe; 542 dma_free_coherent(&bfad->pcidev->dev, 543 dma_elem->mem_len, dma_elem->kva, 544 (dma_addr_t) dma_elem->dma); 545 } 546 547 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s)); 548 } 549 550 void 551 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg) 552 { 553 if (num_rports > 0) 554 bfa_cfg->fwcfg.num_rports = num_rports; 555 if (num_ios > 0) 556 bfa_cfg->fwcfg.num_ioim_reqs = num_ios; 557 if (num_tms > 0) 558 bfa_cfg->fwcfg.num_tskim_reqs = num_tms; 559 if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX) 560 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps; 561 if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX) 562 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs; 563 if (reqq_size > 0) 564 bfa_cfg->drvcfg.num_reqq_elems = reqq_size; 565 if (rspq_size > 0) 566 bfa_cfg->drvcfg.num_rspq_elems = rspq_size; 567 if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX) 568 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs; 569 570 /* 571 * populate the hal values back to the driver for sysfs use. 572 * otherwise, the default values will be shown as 0 in sysfs 573 */ 574 num_rports = bfa_cfg->fwcfg.num_rports; 575 num_ios = bfa_cfg->fwcfg.num_ioim_reqs; 576 num_tms = bfa_cfg->fwcfg.num_tskim_reqs; 577 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs; 578 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs; 579 reqq_size = bfa_cfg->drvcfg.num_reqq_elems; 580 rspq_size = bfa_cfg->drvcfg.num_rspq_elems; 581 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs; 582 } 583 584 bfa_status_t 585 bfad_hal_mem_alloc(struct bfad_s *bfad) 586 { 587 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; 588 struct bfa_mem_dma_s *dma_info, *dma_elem; 589 struct bfa_mem_kva_s *kva_info, *kva_elem; 590 struct list_head *dm_qe, *km_qe; 591 bfa_status_t rc = BFA_STATUS_OK; 592 dma_addr_t phys_addr; 593 594 bfa_cfg_get_default(&bfad->ioc_cfg); 595 bfad_update_hal_cfg(&bfad->ioc_cfg); 596 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs; 597 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa); 598 599 dma_info = &hal_meminfo->dma_info; 600 kva_info = &hal_meminfo->kva_info; 601 602 /* Iterate through the KVA meminfo queue */ 603 list_for_each(km_qe, &kva_info->qe) { 604 kva_elem = (struct bfa_mem_kva_s *) km_qe; 605 kva_elem->kva = vzalloc(kva_elem->mem_len); 606 if (kva_elem->kva == NULL) { 607 bfad_hal_mem_release(bfad); 608 rc = BFA_STATUS_ENOMEM; 609 goto ext; 610 } 611 } 612 613 /* Iterate through the DMA meminfo queue */ 614 list_for_each(dm_qe, &dma_info->qe) { 615 dma_elem = (struct bfa_mem_dma_s *) dm_qe; 616 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev, 617 dma_elem->mem_len, 618 &phys_addr, GFP_KERNEL); 619 if (dma_elem->kva == NULL) { 620 bfad_hal_mem_release(bfad); 621 rc = BFA_STATUS_ENOMEM; 622 goto ext; 623 } 624 dma_elem->dma = phys_addr; 625 memset(dma_elem->kva, 0, dma_elem->mem_len); 626 } 627 ext: 628 return rc; 629 } 630 631 /* 632 * Create a vport under a vf. 633 */ 634 bfa_status_t 635 bfad_vport_create(struct bfad_s *bfad, u16 vf_id, 636 struct bfa_lport_cfg_s *port_cfg, struct device *dev) 637 { 638 struct bfad_vport_s *vport; 639 int rc = BFA_STATUS_OK; 640 unsigned long flags; 641 struct completion fcomp; 642 643 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL); 644 if (!vport) { 645 rc = BFA_STATUS_ENOMEM; 646 goto ext; 647 } 648 649 vport->drv_port.bfad = bfad; 650 spin_lock_irqsave(&bfad->bfad_lock, flags); 651 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id, 652 port_cfg, vport); 653 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 654 655 if (rc != BFA_STATUS_OK) 656 goto ext_free_vport; 657 658 if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) { 659 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port, 660 dev); 661 if (rc != BFA_STATUS_OK) 662 goto ext_free_fcs_vport; 663 } 664 665 spin_lock_irqsave(&bfad->bfad_lock, flags); 666 bfa_fcs_vport_start(&vport->fcs_vport); 667 list_add_tail(&vport->list_entry, &bfad->vport_list); 668 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 669 670 return BFA_STATUS_OK; 671 672 ext_free_fcs_vport: 673 spin_lock_irqsave(&bfad->bfad_lock, flags); 674 vport->comp_del = &fcomp; 675 init_completion(vport->comp_del); 676 bfa_fcs_vport_delete(&vport->fcs_vport); 677 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 678 wait_for_completion(vport->comp_del); 679 ext_free_vport: 680 kfree(vport); 681 ext: 682 return rc; 683 } 684 685 void 686 bfad_bfa_tmo(struct timer_list *t) 687 { 688 struct bfad_s *bfad = from_timer(bfad, t, hal_tmo); 689 unsigned long flags; 690 struct list_head doneq; 691 692 spin_lock_irqsave(&bfad->bfad_lock, flags); 693 694 bfa_timer_beat(&bfad->bfa.timer_mod); 695 696 bfa_comp_deq(&bfad->bfa, &doneq); 697 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 698 699 if (!list_empty(&doneq)) { 700 bfa_comp_process(&bfad->bfa, &doneq); 701 spin_lock_irqsave(&bfad->bfad_lock, flags); 702 bfa_comp_free(&bfad->bfa, &doneq); 703 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 704 } 705 706 mod_timer(&bfad->hal_tmo, 707 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); 708 } 709 710 void 711 bfad_init_timer(struct bfad_s *bfad) 712 { 713 timer_setup(&bfad->hal_tmo, bfad_bfa_tmo, 0); 714 715 mod_timer(&bfad->hal_tmo, 716 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); 717 } 718 719 int 720 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad) 721 { 722 int rc = -ENODEV; 723 724 if (pci_enable_device(pdev)) { 725 printk(KERN_ERR "pci_enable_device fail %p\n", pdev); 726 goto out; 727 } 728 729 if (pci_request_regions(pdev, BFAD_DRIVER_NAME)) 730 goto out_disable_device; 731 732 pci_set_master(pdev); 733 734 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 735 if (rc) { 736 rc = -ENODEV; 737 printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev); 738 goto out_release_region; 739 } 740 741 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0)); 742 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2)); 743 744 if (bfad->pci_bar0_kva == NULL) { 745 printk(KERN_ERR "Fail to map bar0\n"); 746 rc = -ENODEV; 747 goto out_release_region; 748 } 749 750 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn); 751 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn); 752 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva; 753 bfad->hal_pcidev.device_id = pdev->device; 754 bfad->hal_pcidev.ssid = pdev->subsystem_device; 755 bfad->pci_name = pci_name(pdev); 756 757 bfad->pci_attr.vendor_id = pdev->vendor; 758 bfad->pci_attr.device_id = pdev->device; 759 bfad->pci_attr.ssid = pdev->subsystem_device; 760 bfad->pci_attr.ssvid = pdev->subsystem_vendor; 761 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn); 762 763 bfad->pcidev = pdev; 764 765 /* Adjust PCIe Maximum Read Request Size */ 766 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) { 767 if (pcie_max_read_reqsz >= 128 && 768 pcie_max_read_reqsz <= 4096 && 769 is_power_of_2(pcie_max_read_reqsz)) { 770 int max_rq = pcie_get_readrq(pdev); 771 printk(KERN_WARNING "BFA[%s]: " 772 "pcie_max_read_request_size is %d, " 773 "reset to %d\n", bfad->pci_name, max_rq, 774 pcie_max_read_reqsz); 775 pcie_set_readrq(pdev, pcie_max_read_reqsz); 776 } else { 777 printk(KERN_WARNING "BFA[%s]: invalid " 778 "pcie_max_read_request_size %d ignored\n", 779 bfad->pci_name, pcie_max_read_reqsz); 780 } 781 } 782 783 pci_save_state(pdev); 784 785 return 0; 786 787 out_release_region: 788 pci_release_regions(pdev); 789 out_disable_device: 790 pci_disable_device(pdev); 791 out: 792 return rc; 793 } 794 795 void 796 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad) 797 { 798 pci_iounmap(pdev, bfad->pci_bar0_kva); 799 pci_iounmap(pdev, bfad->pci_bar2_kva); 800 pci_release_regions(pdev); 801 pci_disable_device(pdev); 802 } 803 804 bfa_status_t 805 bfad_drv_init(struct bfad_s *bfad) 806 { 807 bfa_status_t rc; 808 unsigned long flags; 809 810 bfad->cfg_data.rport_del_timeout = rport_del_timeout; 811 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth; 812 bfad->cfg_data.io_max_sge = bfa_io_max_sge; 813 bfad->cfg_data.binding_method = FCP_PWWN_BINDING; 814 815 rc = bfad_hal_mem_alloc(bfad); 816 if (rc != BFA_STATUS_OK) { 817 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n", 818 bfad->inst_no); 819 printk(KERN_WARNING 820 "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n"); 821 return BFA_STATUS_FAILED; 822 } 823 824 bfad->bfa.trcmod = bfad->trcmod; 825 bfad->bfa.plog = &bfad->plog_buf; 826 bfa_plog_init(&bfad->plog_buf); 827 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START, 828 0, "Driver Attach"); 829 830 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo, 831 &bfad->hal_pcidev); 832 833 /* FCS INIT */ 834 spin_lock_irqsave(&bfad->bfad_lock, flags); 835 bfad->bfa_fcs.trcmod = bfad->trcmod; 836 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE); 837 bfad->bfa_fcs.fdmi_enabled = fdmi_enable; 838 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 839 840 bfad->bfad_flags |= BFAD_DRV_INIT_DONE; 841 842 return BFA_STATUS_OK; 843 } 844 845 void 846 bfad_drv_uninit(struct bfad_s *bfad) 847 { 848 unsigned long flags; 849 850 spin_lock_irqsave(&bfad->bfad_lock, flags); 851 init_completion(&bfad->comp); 852 bfa_iocfc_stop(&bfad->bfa); 853 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 854 wait_for_completion(&bfad->comp); 855 856 del_timer_sync(&bfad->hal_tmo); 857 bfa_isr_disable(&bfad->bfa); 858 bfa_detach(&bfad->bfa); 859 bfad_remove_intr(bfad); 860 bfad_hal_mem_release(bfad); 861 862 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE; 863 } 864 865 void 866 bfad_drv_start(struct bfad_s *bfad) 867 { 868 unsigned long flags; 869 870 spin_lock_irqsave(&bfad->bfad_lock, flags); 871 bfa_iocfc_start(&bfad->bfa); 872 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs); 873 bfa_fcs_fabric_modstart(&bfad->bfa_fcs); 874 bfad->bfad_flags |= BFAD_HAL_START_DONE; 875 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 876 877 if (bfad->im) 878 flush_workqueue(bfad->im->drv_workq); 879 } 880 881 void 882 bfad_fcs_stop(struct bfad_s *bfad) 883 { 884 unsigned long flags; 885 886 spin_lock_irqsave(&bfad->bfad_lock, flags); 887 init_completion(&bfad->comp); 888 bfad->pport.flags |= BFAD_PORT_DELETE; 889 bfa_fcs_exit(&bfad->bfa_fcs); 890 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 891 wait_for_completion(&bfad->comp); 892 893 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); 894 } 895 896 void 897 bfad_stop(struct bfad_s *bfad) 898 { 899 unsigned long flags; 900 901 spin_lock_irqsave(&bfad->bfad_lock, flags); 902 init_completion(&bfad->comp); 903 bfa_iocfc_stop(&bfad->bfa); 904 bfad->bfad_flags &= ~BFAD_HAL_START_DONE; 905 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 906 wait_for_completion(&bfad->comp); 907 908 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP); 909 } 910 911 bfa_status_t 912 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role) 913 { 914 int rc = BFA_STATUS_OK; 915 916 /* Allocate scsi_host for the physical port */ 917 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 918 (role & BFA_LPORT_ROLE_FCP_IM)) { 919 if (bfad->pport.im_port == NULL) { 920 rc = BFA_STATUS_FAILED; 921 goto out; 922 } 923 924 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port, 925 &bfad->pcidev->dev); 926 if (rc != BFA_STATUS_OK) 927 goto out; 928 929 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM; 930 } 931 932 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE; 933 934 out: 935 return rc; 936 } 937 938 void 939 bfad_uncfg_pport(struct bfad_s *bfad) 940 { 941 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 942 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) { 943 bfad_im_scsi_host_free(bfad, bfad->pport.im_port); 944 bfad_im_port_clean(bfad->pport.im_port); 945 kfree(bfad->pport.im_port); 946 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM; 947 } 948 949 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE; 950 } 951 952 bfa_status_t 953 bfad_start_ops(struct bfad_s *bfad) { 954 955 int retval; 956 unsigned long flags; 957 struct bfad_vport_s *vport, *vport_new; 958 struct bfa_fcs_driver_info_s driver_info; 959 960 /* Limit min/max. xfer size to [64k-32MB] */ 961 if (max_xfer_size < BFAD_MIN_SECTORS >> 1) 962 max_xfer_size = BFAD_MIN_SECTORS >> 1; 963 if (max_xfer_size > BFAD_MAX_SECTORS >> 1) 964 max_xfer_size = BFAD_MAX_SECTORS >> 1; 965 966 /* Fill the driver_info info to fcs*/ 967 memset(&driver_info, 0, sizeof(driver_info)); 968 strscpy(driver_info.version, BFAD_DRIVER_VERSION, 969 sizeof(driver_info.version)); 970 if (host_name) 971 strscpy(driver_info.host_machine_name, host_name, 972 sizeof(driver_info.host_machine_name)); 973 if (os_name) 974 strscpy(driver_info.host_os_name, os_name, 975 sizeof(driver_info.host_os_name)); 976 if (os_patch) 977 strscpy(driver_info.host_os_patch, os_patch, 978 sizeof(driver_info.host_os_patch)); 979 980 strscpy(driver_info.os_device_name, bfad->pci_name, 981 sizeof(driver_info.os_device_name)); 982 983 /* FCS driver info init */ 984 spin_lock_irqsave(&bfad->bfad_lock, flags); 985 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info); 986 987 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) 988 bfa_fcs_update_cfg(&bfad->bfa_fcs); 989 else 990 bfa_fcs_init(&bfad->bfa_fcs); 991 992 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 993 994 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) { 995 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); 996 if (retval != BFA_STATUS_OK) 997 return BFA_STATUS_FAILED; 998 } 999 1000 /* Setup fc host fixed attribute if the lk supports */ 1001 bfad_fc_host_init(bfad->pport.im_port); 1002 1003 /* BFAD level FC4 IM specific resource allocation */ 1004 retval = bfad_im_probe(bfad); 1005 if (retval != BFA_STATUS_OK) { 1006 printk(KERN_WARNING "bfad_im_probe failed\n"); 1007 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing)) 1008 bfa_sm_set_state(bfad, bfad_sm_failed); 1009 return BFA_STATUS_FAILED; 1010 } else 1011 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE; 1012 1013 bfad_drv_start(bfad); 1014 1015 /* Complete pbc vport create */ 1016 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list, 1017 list_entry) { 1018 struct fc_vport_identifiers vid; 1019 struct fc_vport *fc_vport; 1020 char pwwn_buf[BFA_STRING_32]; 1021 1022 memset(&vid, 0, sizeof(vid)); 1023 vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1024 vid.vport_type = FC_PORTTYPE_NPIV; 1025 vid.disable = false; 1026 vid.node_name = wwn_to_u64((u8 *) 1027 (&((vport->fcs_vport).lport.port_cfg.nwwn))); 1028 vid.port_name = wwn_to_u64((u8 *) 1029 (&((vport->fcs_vport).lport.port_cfg.pwwn))); 1030 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid); 1031 if (!fc_vport) { 1032 wwn2str(pwwn_buf, vid.port_name); 1033 printk(KERN_WARNING "bfad%d: failed to create pbc vport" 1034 " %s\n", bfad->inst_no, pwwn_buf); 1035 } 1036 list_del(&vport->list_entry); 1037 kfree(vport); 1038 } 1039 1040 /* 1041 * If bfa_linkup_delay is set to -1 default; try to retrive the 1042 * value using the bfad_get_linkup_delay(); else use the 1043 * passed in module param value as the bfa_linkup_delay. 1044 */ 1045 if (bfa_linkup_delay < 0) { 1046 bfa_linkup_delay = bfad_get_linkup_delay(bfad); 1047 bfad_rport_online_wait(bfad); 1048 bfa_linkup_delay = -1; 1049 } else 1050 bfad_rport_online_wait(bfad); 1051 1052 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n"); 1053 1054 return BFA_STATUS_OK; 1055 } 1056 1057 int 1058 bfad_worker(void *ptr) 1059 { 1060 struct bfad_s *bfad = ptr; 1061 unsigned long flags; 1062 1063 if (kthread_should_stop()) 1064 return 0; 1065 1066 /* Send event BFAD_E_INIT_SUCCESS */ 1067 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); 1068 1069 spin_lock_irqsave(&bfad->bfad_lock, flags); 1070 bfad->bfad_tsk = NULL; 1071 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1072 1073 return 0; 1074 } 1075 1076 /* 1077 * BFA driver interrupt functions 1078 */ 1079 irqreturn_t 1080 bfad_intx(int irq, void *dev_id) 1081 { 1082 struct bfad_s *bfad = dev_id; 1083 struct list_head doneq; 1084 unsigned long flags; 1085 bfa_boolean_t rc; 1086 1087 spin_lock_irqsave(&bfad->bfad_lock, flags); 1088 rc = bfa_intx(&bfad->bfa); 1089 if (!rc) { 1090 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1091 return IRQ_NONE; 1092 } 1093 1094 bfa_comp_deq(&bfad->bfa, &doneq); 1095 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1096 1097 if (!list_empty(&doneq)) { 1098 bfa_comp_process(&bfad->bfa, &doneq); 1099 1100 spin_lock_irqsave(&bfad->bfad_lock, flags); 1101 bfa_comp_free(&bfad->bfa, &doneq); 1102 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1103 } 1104 1105 return IRQ_HANDLED; 1106 1107 } 1108 1109 static irqreturn_t 1110 bfad_msix(int irq, void *dev_id) 1111 { 1112 struct bfad_msix_s *vec = dev_id; 1113 struct bfad_s *bfad = vec->bfad; 1114 struct list_head doneq; 1115 unsigned long flags; 1116 1117 spin_lock_irqsave(&bfad->bfad_lock, flags); 1118 1119 bfa_msix(&bfad->bfa, vec->msix.entry); 1120 bfa_comp_deq(&bfad->bfa, &doneq); 1121 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1122 1123 if (!list_empty(&doneq)) { 1124 bfa_comp_process(&bfad->bfa, &doneq); 1125 1126 spin_lock_irqsave(&bfad->bfad_lock, flags); 1127 bfa_comp_free(&bfad->bfa, &doneq); 1128 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1129 } 1130 1131 return IRQ_HANDLED; 1132 } 1133 1134 /* 1135 * Initialize the MSIX entry table. 1136 */ 1137 static void 1138 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries, 1139 int mask, int max_bit) 1140 { 1141 int i; 1142 int match = 0x00000001; 1143 1144 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) { 1145 if (mask & match) { 1146 bfad->msix_tab[bfad->nvec].msix.entry = i; 1147 bfad->msix_tab[bfad->nvec].bfad = bfad; 1148 msix_entries[bfad->nvec].entry = i; 1149 bfad->nvec++; 1150 } 1151 1152 match <<= 1; 1153 } 1154 1155 } 1156 1157 int 1158 bfad_install_msix_handler(struct bfad_s *bfad) 1159 { 1160 int i, error = 0; 1161 1162 for (i = 0; i < bfad->nvec; i++) { 1163 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s", 1164 bfad->pci_name, 1165 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ? 1166 msix_name_cb[i] : msix_name_ct[i])); 1167 1168 error = request_irq(bfad->msix_tab[i].msix.vector, 1169 (irq_handler_t) bfad_msix, 0, 1170 bfad->msix_tab[i].name, &bfad->msix_tab[i]); 1171 bfa_trc(bfad, i); 1172 bfa_trc(bfad, bfad->msix_tab[i].msix.vector); 1173 if (error) { 1174 int j; 1175 1176 for (j = 0; j < i; j++) 1177 free_irq(bfad->msix_tab[j].msix.vector, 1178 &bfad->msix_tab[j]); 1179 1180 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1181 pci_disable_msix(bfad->pcidev); 1182 1183 return 1; 1184 } 1185 } 1186 1187 return 0; 1188 } 1189 1190 /* 1191 * Setup MSIX based interrupt. 1192 */ 1193 int 1194 bfad_setup_intr(struct bfad_s *bfad) 1195 { 1196 int error; 1197 u32 mask = 0, i, num_bit = 0, max_bit = 0; 1198 struct msix_entry msix_entries[MAX_MSIX_ENTRY]; 1199 struct pci_dev *pdev = bfad->pcidev; 1200 u16 reg; 1201 1202 /* Call BFA to get the msix map for this PCI function. */ 1203 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit); 1204 1205 /* Set up the msix entry table */ 1206 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit); 1207 1208 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) || 1209 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) { 1210 1211 error = pci_enable_msix_exact(bfad->pcidev, 1212 msix_entries, bfad->nvec); 1213 /* In CT1 & CT2, try to allocate just one vector */ 1214 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) { 1215 printk(KERN_WARNING "bfa %s: trying one msix " 1216 "vector failed to allocate %d[%d]\n", 1217 bfad->pci_name, bfad->nvec, error); 1218 bfad->nvec = 1; 1219 error = pci_enable_msix_exact(bfad->pcidev, 1220 msix_entries, 1); 1221 } 1222 1223 if (error) { 1224 printk(KERN_WARNING "bfad%d: " 1225 "pci_enable_msix_exact failed (%d), " 1226 "use line based.\n", 1227 bfad->inst_no, error); 1228 goto line_based; 1229 } 1230 1231 /* Disable INTX in MSI-X mode */ 1232 pci_read_config_word(pdev, PCI_COMMAND, ®); 1233 1234 if (!(reg & PCI_COMMAND_INTX_DISABLE)) 1235 pci_write_config_word(pdev, PCI_COMMAND, 1236 reg | PCI_COMMAND_INTX_DISABLE); 1237 1238 /* Save the vectors */ 1239 for (i = 0; i < bfad->nvec; i++) { 1240 bfa_trc(bfad, msix_entries[i].vector); 1241 bfad->msix_tab[i].msix.vector = msix_entries[i].vector; 1242 } 1243 1244 bfa_msix_init(&bfad->bfa, bfad->nvec); 1245 1246 bfad->bfad_flags |= BFAD_MSIX_ON; 1247 1248 return 0; 1249 } 1250 1251 line_based: 1252 error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx, 1253 BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad); 1254 if (error) 1255 return error; 1256 1257 bfad->bfad_flags |= BFAD_INTX_ON; 1258 1259 return 0; 1260 } 1261 1262 void 1263 bfad_remove_intr(struct bfad_s *bfad) 1264 { 1265 int i; 1266 1267 if (bfad->bfad_flags & BFAD_MSIX_ON) { 1268 for (i = 0; i < bfad->nvec; i++) 1269 free_irq(bfad->msix_tab[i].msix.vector, 1270 &bfad->msix_tab[i]); 1271 1272 pci_disable_msix(bfad->pcidev); 1273 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1274 } else if (bfad->bfad_flags & BFAD_INTX_ON) { 1275 free_irq(bfad->pcidev->irq, bfad); 1276 } 1277 } 1278 1279 /* 1280 * PCI probe entry. 1281 */ 1282 int 1283 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) 1284 { 1285 struct bfad_s *bfad; 1286 int error = -ENODEV, retval, i; 1287 1288 /* For single port cards - only claim function 0 */ 1289 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) && 1290 (PCI_FUNC(pdev->devfn) != 0)) 1291 return -ENODEV; 1292 1293 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL); 1294 if (!bfad) { 1295 error = -ENOMEM; 1296 goto out; 1297 } 1298 1299 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL); 1300 if (!bfad->trcmod) { 1301 printk(KERN_WARNING "Error alloc trace buffer!\n"); 1302 error = -ENOMEM; 1303 goto out_alloc_trace_failure; 1304 } 1305 1306 /* TRACE INIT */ 1307 bfa_trc_init(bfad->trcmod); 1308 bfa_trc(bfad, bfad_inst); 1309 1310 /* AEN INIT */ 1311 INIT_LIST_HEAD(&bfad->free_aen_q); 1312 INIT_LIST_HEAD(&bfad->active_aen_q); 1313 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++) 1314 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q); 1315 1316 if (!(bfad_load_fwimg(pdev))) { 1317 kfree(bfad->trcmod); 1318 goto out_alloc_trace_failure; 1319 } 1320 1321 retval = bfad_pci_init(pdev, bfad); 1322 if (retval) { 1323 printk(KERN_WARNING "bfad_pci_init failure!\n"); 1324 error = retval; 1325 goto out_pci_init_failure; 1326 } 1327 1328 mutex_lock(&bfad_mutex); 1329 bfad->inst_no = bfad_inst++; 1330 list_add_tail(&bfad->list_entry, &bfad_list); 1331 mutex_unlock(&bfad_mutex); 1332 1333 /* Initializing the state machine: State set to uninit */ 1334 bfa_sm_set_state(bfad, bfad_sm_uninit); 1335 1336 spin_lock_init(&bfad->bfad_lock); 1337 spin_lock_init(&bfad->bfad_aen_spinlock); 1338 1339 pci_set_drvdata(pdev, bfad); 1340 1341 bfad->ref_count = 0; 1342 bfad->pport.bfad = bfad; 1343 INIT_LIST_HEAD(&bfad->pbc_vport_list); 1344 INIT_LIST_HEAD(&bfad->vport_list); 1345 1346 /* Setup the debugfs node for this bfad */ 1347 if (bfa_debugfs_enable) 1348 bfad_debugfs_init(&bfad->pport); 1349 1350 retval = bfad_drv_init(bfad); 1351 if (retval != BFA_STATUS_OK) 1352 goto out_drv_init_failure; 1353 1354 bfa_sm_send_event(bfad, BFAD_E_CREATE); 1355 1356 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit)) 1357 goto out_bfad_sm_failure; 1358 1359 return 0; 1360 1361 out_bfad_sm_failure: 1362 bfad_hal_mem_release(bfad); 1363 out_drv_init_failure: 1364 /* Remove the debugfs node for this bfad */ 1365 kfree(bfad->regdata); 1366 bfad_debugfs_exit(&bfad->pport); 1367 mutex_lock(&bfad_mutex); 1368 bfad_inst--; 1369 list_del(&bfad->list_entry); 1370 mutex_unlock(&bfad_mutex); 1371 bfad_pci_uninit(pdev, bfad); 1372 out_pci_init_failure: 1373 kfree(bfad->trcmod); 1374 out_alloc_trace_failure: 1375 kfree(bfad); 1376 out: 1377 return error; 1378 } 1379 1380 /* 1381 * PCI remove entry. 1382 */ 1383 void 1384 bfad_pci_remove(struct pci_dev *pdev) 1385 { 1386 struct bfad_s *bfad = pci_get_drvdata(pdev); 1387 unsigned long flags; 1388 1389 bfa_trc(bfad, bfad->inst_no); 1390 1391 spin_lock_irqsave(&bfad->bfad_lock, flags); 1392 if (bfad->bfad_tsk != NULL) { 1393 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1394 kthread_stop(bfad->bfad_tsk); 1395 } else { 1396 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1397 } 1398 1399 /* Send Event BFAD_E_STOP */ 1400 bfa_sm_send_event(bfad, BFAD_E_STOP); 1401 1402 /* Driver detach and dealloc mem */ 1403 spin_lock_irqsave(&bfad->bfad_lock, flags); 1404 bfa_detach(&bfad->bfa); 1405 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1406 bfad_hal_mem_release(bfad); 1407 1408 /* Remove the debugfs node for this bfad */ 1409 kfree(bfad->regdata); 1410 bfad_debugfs_exit(&bfad->pport); 1411 1412 /* Cleaning the BFAD instance */ 1413 mutex_lock(&bfad_mutex); 1414 bfad_inst--; 1415 list_del(&bfad->list_entry); 1416 mutex_unlock(&bfad_mutex); 1417 bfad_pci_uninit(pdev, bfad); 1418 1419 kfree(bfad->trcmod); 1420 kfree(bfad); 1421 } 1422 1423 /* 1424 * PCI Error Recovery entry, error detected. 1425 */ 1426 static pci_ers_result_t 1427 bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 1428 { 1429 struct bfad_s *bfad = pci_get_drvdata(pdev); 1430 unsigned long flags; 1431 pci_ers_result_t ret = PCI_ERS_RESULT_NONE; 1432 1433 dev_printk(KERN_ERR, &pdev->dev, 1434 "error detected state: %d - flags: 0x%x\n", 1435 state, bfad->bfad_flags); 1436 1437 switch (state) { 1438 case pci_channel_io_normal: /* non-fatal error */ 1439 spin_lock_irqsave(&bfad->bfad_lock, flags); 1440 bfad->bfad_flags &= ~BFAD_EEH_BUSY; 1441 /* Suspend/fail all bfa operations */ 1442 bfa_ioc_suspend(&bfad->bfa.ioc); 1443 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1444 del_timer_sync(&bfad->hal_tmo); 1445 ret = PCI_ERS_RESULT_CAN_RECOVER; 1446 break; 1447 case pci_channel_io_frozen: /* fatal error */ 1448 init_completion(&bfad->comp); 1449 spin_lock_irqsave(&bfad->bfad_lock, flags); 1450 bfad->bfad_flags |= BFAD_EEH_BUSY; 1451 /* Suspend/fail all bfa operations */ 1452 bfa_ioc_suspend(&bfad->bfa.ioc); 1453 bfa_fcs_stop(&bfad->bfa_fcs); 1454 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1455 wait_for_completion(&bfad->comp); 1456 1457 bfad_remove_intr(bfad); 1458 del_timer_sync(&bfad->hal_tmo); 1459 pci_disable_device(pdev); 1460 ret = PCI_ERS_RESULT_NEED_RESET; 1461 break; 1462 case pci_channel_io_perm_failure: /* PCI Card is DEAD */ 1463 spin_lock_irqsave(&bfad->bfad_lock, flags); 1464 bfad->bfad_flags |= BFAD_EEH_BUSY | 1465 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE; 1466 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1467 1468 /* If the error_detected handler is called with the reason 1469 * pci_channel_io_perm_failure - it will subsequently call 1470 * pci_remove() entry point to remove the pci device from the 1471 * system - So defer the cleanup to pci_remove(); cleaning up 1472 * here causes inconsistent state during pci_remove(). 1473 */ 1474 ret = PCI_ERS_RESULT_DISCONNECT; 1475 break; 1476 default: 1477 WARN_ON(1); 1478 } 1479 1480 return ret; 1481 } 1482 1483 static int restart_bfa(struct bfad_s *bfad) 1484 { 1485 unsigned long flags; 1486 struct pci_dev *pdev = bfad->pcidev; 1487 1488 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, 1489 &bfad->meminfo, &bfad->hal_pcidev); 1490 1491 /* Enable Interrupt and wait bfa_init completion */ 1492 if (bfad_setup_intr(bfad)) { 1493 dev_printk(KERN_WARNING, &pdev->dev, 1494 "%s: bfad_setup_intr failed\n", bfad->pci_name); 1495 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); 1496 return -1; 1497 } 1498 1499 init_completion(&bfad->comp); 1500 spin_lock_irqsave(&bfad->bfad_lock, flags); 1501 bfa_iocfc_init(&bfad->bfa); 1502 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1503 1504 /* Set up interrupt handler for each vectors */ 1505 if ((bfad->bfad_flags & BFAD_MSIX_ON) && 1506 bfad_install_msix_handler(bfad)) 1507 dev_printk(KERN_WARNING, &pdev->dev, 1508 "%s: install_msix failed.\n", bfad->pci_name); 1509 1510 bfad_init_timer(bfad); 1511 wait_for_completion(&bfad->comp); 1512 bfad_drv_start(bfad); 1513 1514 return 0; 1515 } 1516 1517 /* 1518 * PCI Error Recovery entry, re-initialize the chip. 1519 */ 1520 static pci_ers_result_t 1521 bfad_pci_slot_reset(struct pci_dev *pdev) 1522 { 1523 struct bfad_s *bfad = pci_get_drvdata(pdev); 1524 u8 byte; 1525 int rc; 1526 1527 dev_printk(KERN_ERR, &pdev->dev, 1528 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags); 1529 1530 if (pci_enable_device(pdev)) { 1531 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable " 1532 "PCI device after reset.\n"); 1533 return PCI_ERS_RESULT_DISCONNECT; 1534 } 1535 1536 pci_restore_state(pdev); 1537 1538 /* 1539 * Read some byte (e.g. DMA max. payload size which can't 1540 * be 0xff any time) to make sure - we did not hit another PCI error 1541 * in the middle of recovery. If we did, then declare permanent failure. 1542 */ 1543 pci_read_config_byte(pdev, 0x68, &byte); 1544 if (byte == 0xff) { 1545 dev_printk(KERN_ERR, &pdev->dev, 1546 "slot_reset failed ... got another PCI error !\n"); 1547 goto out_disable_device; 1548 } 1549 1550 pci_save_state(pdev); 1551 pci_set_master(pdev); 1552 1553 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64)); 1554 if (rc) 1555 goto out_disable_device; 1556 1557 if (restart_bfa(bfad) == -1) 1558 goto out_disable_device; 1559 1560 dev_printk(KERN_WARNING, &pdev->dev, 1561 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags); 1562 1563 return PCI_ERS_RESULT_RECOVERED; 1564 1565 out_disable_device: 1566 pci_disable_device(pdev); 1567 return PCI_ERS_RESULT_DISCONNECT; 1568 } 1569 1570 static pci_ers_result_t 1571 bfad_pci_mmio_enabled(struct pci_dev *pdev) 1572 { 1573 unsigned long flags; 1574 struct bfad_s *bfad = pci_get_drvdata(pdev); 1575 1576 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n"); 1577 1578 /* Fetch FW diagnostic information */ 1579 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc); 1580 1581 /* Cancel all pending IOs */ 1582 spin_lock_irqsave(&bfad->bfad_lock, flags); 1583 init_completion(&bfad->comp); 1584 bfa_fcs_stop(&bfad->bfa_fcs); 1585 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1586 wait_for_completion(&bfad->comp); 1587 1588 bfad_remove_intr(bfad); 1589 del_timer_sync(&bfad->hal_tmo); 1590 pci_disable_device(pdev); 1591 1592 return PCI_ERS_RESULT_NEED_RESET; 1593 } 1594 1595 static void 1596 bfad_pci_resume(struct pci_dev *pdev) 1597 { 1598 unsigned long flags; 1599 struct bfad_s *bfad = pci_get_drvdata(pdev); 1600 1601 dev_printk(KERN_WARNING, &pdev->dev, "resume\n"); 1602 1603 /* wait until the link is online */ 1604 bfad_rport_online_wait(bfad); 1605 1606 spin_lock_irqsave(&bfad->bfad_lock, flags); 1607 bfad->bfad_flags &= ~BFAD_EEH_BUSY; 1608 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1609 } 1610 1611 struct pci_device_id bfad_id_table[] = { 1612 { 1613 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1614 .device = BFA_PCI_DEVICE_ID_FC_8G2P, 1615 .subvendor = PCI_ANY_ID, 1616 .subdevice = PCI_ANY_ID, 1617 }, 1618 { 1619 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1620 .device = BFA_PCI_DEVICE_ID_FC_8G1P, 1621 .subvendor = PCI_ANY_ID, 1622 .subdevice = PCI_ANY_ID, 1623 }, 1624 { 1625 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1626 .device = BFA_PCI_DEVICE_ID_CT, 1627 .subvendor = PCI_ANY_ID, 1628 .subdevice = PCI_ANY_ID, 1629 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1630 .class_mask = ~0, 1631 }, 1632 { 1633 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1634 .device = BFA_PCI_DEVICE_ID_CT_FC, 1635 .subvendor = PCI_ANY_ID, 1636 .subdevice = PCI_ANY_ID, 1637 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1638 .class_mask = ~0, 1639 }, 1640 { 1641 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1642 .device = BFA_PCI_DEVICE_ID_CT2, 1643 .subvendor = PCI_ANY_ID, 1644 .subdevice = PCI_ANY_ID, 1645 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1646 .class_mask = ~0, 1647 }, 1648 1649 { 1650 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1651 .device = BFA_PCI_DEVICE_ID_CT2_QUAD, 1652 .subvendor = PCI_ANY_ID, 1653 .subdevice = PCI_ANY_ID, 1654 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1655 .class_mask = ~0, 1656 }, 1657 {0, 0}, 1658 }; 1659 1660 MODULE_DEVICE_TABLE(pci, bfad_id_table); 1661 1662 /* 1663 * PCI error recovery handlers. 1664 */ 1665 static struct pci_error_handlers bfad_err_handler = { 1666 .error_detected = bfad_pci_error_detected, 1667 .slot_reset = bfad_pci_slot_reset, 1668 .mmio_enabled = bfad_pci_mmio_enabled, 1669 .resume = bfad_pci_resume, 1670 }; 1671 1672 static struct pci_driver bfad_pci_driver = { 1673 .name = BFAD_DRIVER_NAME, 1674 .id_table = bfad_id_table, 1675 .probe = bfad_pci_probe, 1676 .remove = bfad_pci_remove, 1677 .err_handler = &bfad_err_handler, 1678 }; 1679 1680 /* 1681 * Driver module init. 1682 */ 1683 static int __init 1684 bfad_init(void) 1685 { 1686 int error = 0; 1687 1688 pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n", 1689 BFAD_DRIVER_VERSION); 1690 1691 if (num_sgpgs > 0) 1692 num_sgpgs_parm = num_sgpgs; 1693 1694 error = bfad_im_module_init(); 1695 if (error) { 1696 error = -ENOMEM; 1697 printk(KERN_WARNING "bfad_im_module_init failure\n"); 1698 goto ext; 1699 } 1700 1701 if (strcmp(FCPI_NAME, " fcpim") == 0) 1702 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM; 1703 1704 bfa_auto_recover = ioc_auto_recover; 1705 bfa_fcs_rport_set_del_timeout(rport_del_timeout); 1706 bfa_fcs_rport_set_max_logins(max_rport_logins); 1707 1708 error = pci_register_driver(&bfad_pci_driver); 1709 if (error) { 1710 printk(KERN_WARNING "pci_register_driver failure\n"); 1711 goto ext; 1712 } 1713 1714 return 0; 1715 1716 ext: 1717 bfad_im_module_exit(); 1718 return error; 1719 } 1720 1721 /* 1722 * Driver module exit. 1723 */ 1724 static void __exit 1725 bfad_exit(void) 1726 { 1727 pci_unregister_driver(&bfad_pci_driver); 1728 bfad_im_module_exit(); 1729 bfad_free_fwimg(); 1730 } 1731 1732 /* Firmware handling */ 1733 static void 1734 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 1735 u32 *bfi_image_size, char *fw_name) 1736 { 1737 const struct firmware *fw; 1738 1739 if (request_firmware(&fw, fw_name, &pdev->dev)) { 1740 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name); 1741 *bfi_image = NULL; 1742 goto out; 1743 } 1744 1745 *bfi_image = vmalloc(fw->size); 1746 if (NULL == *bfi_image) { 1747 printk(KERN_ALERT "Fail to allocate buffer for fw image " 1748 "size=%x!\n", (u32) fw->size); 1749 goto out; 1750 } 1751 1752 memcpy(*bfi_image, fw->data, fw->size); 1753 *bfi_image_size = fw->size/sizeof(u32); 1754 out: 1755 release_firmware(fw); 1756 } 1757 1758 static u32 * 1759 bfad_load_fwimg(struct pci_dev *pdev) 1760 { 1761 if (bfa_asic_id_ct2(pdev->device)) { 1762 if (bfi_image_ct2_size == 0) 1763 bfad_read_firmware(pdev, &bfi_image_ct2, 1764 &bfi_image_ct2_size, BFAD_FW_FILE_CT2); 1765 return bfi_image_ct2; 1766 } else if (bfa_asic_id_ct(pdev->device)) { 1767 if (bfi_image_ct_size == 0) 1768 bfad_read_firmware(pdev, &bfi_image_ct, 1769 &bfi_image_ct_size, BFAD_FW_FILE_CT); 1770 return bfi_image_ct; 1771 } else if (bfa_asic_id_cb(pdev->device)) { 1772 if (bfi_image_cb_size == 0) 1773 bfad_read_firmware(pdev, &bfi_image_cb, 1774 &bfi_image_cb_size, BFAD_FW_FILE_CB); 1775 return bfi_image_cb; 1776 } 1777 1778 return NULL; 1779 } 1780 1781 static void 1782 bfad_free_fwimg(void) 1783 { 1784 if (bfi_image_ct2_size && bfi_image_ct2) 1785 vfree(bfi_image_ct2); 1786 if (bfi_image_ct_size && bfi_image_ct) 1787 vfree(bfi_image_ct); 1788 if (bfi_image_cb_size && bfi_image_cb) 1789 vfree(bfi_image_cb); 1790 } 1791 1792 module_init(bfad_init); 1793 module_exit(bfad_exit); 1794 MODULE_LICENSE("GPL"); 1795 MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME); 1796 MODULE_AUTHOR("QLogic Corporation"); 1797 MODULE_VERSION(BFAD_DRIVER_VERSION); 1798