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 61 /* Firmware releated */ 62 u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; 63 u32 *bfi_image_cb, *bfi_image_ct, *bfi_image_ct2; 64 65 #define BFAD_FW_FILE_CB "cbfw.bin" 66 #define BFAD_FW_FILE_CT "ctfw.bin" 67 #define BFAD_FW_FILE_CT2 "ct2fw.bin" 68 69 static u32 *bfad_load_fwimg(struct pci_dev *pdev); 70 static void bfad_free_fwimg(void); 71 static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 72 u32 *bfi_image_size, char *fw_name); 73 74 static const char *msix_name_ct[] = { 75 "ctrl", 76 "cpe0", "cpe1", "cpe2", "cpe3", 77 "rme0", "rme1", "rme2", "rme3" }; 78 79 static const char *msix_name_cb[] = { 80 "cpe0", "cpe1", "cpe2", "cpe3", 81 "rme0", "rme1", "rme2", "rme3", 82 "eemc", "elpu0", "elpu1", "epss", "mlpu" }; 83 84 MODULE_FIRMWARE(BFAD_FW_FILE_CB); 85 MODULE_FIRMWARE(BFAD_FW_FILE_CT); 86 MODULE_FIRMWARE(BFAD_FW_FILE_CT2); 87 88 module_param(os_name, charp, S_IRUGO | S_IWUSR); 89 MODULE_PARM_DESC(os_name, "OS name of the hba host machine"); 90 module_param(os_patch, charp, S_IRUGO | S_IWUSR); 91 MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine"); 92 module_param(host_name, charp, S_IRUGO | S_IWUSR); 93 MODULE_PARM_DESC(host_name, "Hostname of the hba host machine"); 94 module_param(num_rports, int, S_IRUGO | S_IWUSR); 95 MODULE_PARM_DESC(num_rports, "Max number of rports supported per port " 96 "(physical/logical), default=1024"); 97 module_param(num_ios, int, S_IRUGO | S_IWUSR); 98 MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000"); 99 module_param(num_tms, int, S_IRUGO | S_IWUSR); 100 MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128"); 101 module_param(num_fcxps, int, S_IRUGO | S_IWUSR); 102 MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64"); 103 module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); 104 MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame " 105 "buffers, default=64"); 106 module_param(reqq_size, int, S_IRUGO | S_IWUSR); 107 MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, " 108 "default=256"); 109 module_param(rspq_size, int, S_IRUGO | S_IWUSR); 110 MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, " 111 "default=64"); 112 module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); 113 MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048"); 114 module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); 115 MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, " 116 "Range[>0]"); 117 module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); 118 MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]"); 119 module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); 120 MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255"); 121 module_param(bfa_log_level, int, S_IRUGO | S_IWUSR); 122 MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, " 123 "Range[Critical:1|Error:2|Warning:3|Info:4]"); 124 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); 125 MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, " 126 "Range[off:0|on:1]"); 127 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); 128 MODULE_PARM_DESC(bfa_linkup_delay, "Link up delay, default=30 secs for " 129 "boot port. Otherwise 10 secs in RHEL4 & 0 for " 130 "[RHEL5, SLES10, ESX40] Range[>0]"); 131 module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR); 132 MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts " 133 "for Brocade-415/425/815/825 cards, default=0, " 134 " Range[false:0|true:1]"); 135 module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR); 136 MODULE_PARM_DESC(msix_disable_ct, "Disable Message Signaled Interrupts " 137 "if possible for Brocade-1010/1020/804/1007/902/1741 " 138 "cards, default=0, Range[false:0|true:1]"); 139 module_param(fdmi_enable, int, S_IRUGO | S_IWUSR); 140 MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, " 141 "Range[false:0|true:1]"); 142 module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR); 143 MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " 144 "(use system setting), Range[128|256|512|1024|2048|4096]"); 145 module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); 146 MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," 147 " Range[false:0|true:1]"); 148 module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); 149 MODULE_PARM_DESC(max_xfer_size, "default=32MB," 150 " Range[64k|128k|256k|512k|1024k|2048k]"); 151 152 static void 153 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); 154 static void 155 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event); 156 static void 157 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event); 158 static void 159 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event); 160 static void 161 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event); 162 static void 163 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event); 164 static void 165 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event); 166 167 /* 168 * Beginning state for the driver instance, awaiting the pci_probe event 169 */ 170 static void 171 bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event) 172 { 173 bfa_trc(bfad, event); 174 175 switch (event) { 176 case BFAD_E_CREATE: 177 bfa_sm_set_state(bfad, bfad_sm_created); 178 bfad->bfad_tsk = kthread_create(bfad_worker, (void *) bfad, 179 "%s", "bfad_worker"); 180 if (IS_ERR(bfad->bfad_tsk)) { 181 printk(KERN_INFO "bfad[%d]: Kernel thread " 182 "creation failed!\n", bfad->inst_no); 183 bfa_sm_send_event(bfad, BFAD_E_KTHREAD_CREATE_FAILED); 184 } 185 bfa_sm_send_event(bfad, BFAD_E_INIT); 186 break; 187 188 case BFAD_E_STOP: 189 /* Ignore stop; already in uninit */ 190 break; 191 192 default: 193 bfa_sm_fault(bfad, event); 194 } 195 } 196 197 /* 198 * Driver Instance is created, awaiting event INIT to initialize the bfad 199 */ 200 static void 201 bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event) 202 { 203 unsigned long flags; 204 205 bfa_trc(bfad, event); 206 207 switch (event) { 208 case BFAD_E_INIT: 209 bfa_sm_set_state(bfad, bfad_sm_initializing); 210 211 init_completion(&bfad->comp); 212 213 /* Enable Interrupt and wait bfa_init completion */ 214 if (bfad_setup_intr(bfad)) { 215 printk(KERN_WARNING "bfad%d: bfad_setup_intr failed\n", 216 bfad->inst_no); 217 bfa_sm_send_event(bfad, BFAD_E_INTR_INIT_FAILED); 218 break; 219 } 220 221 spin_lock_irqsave(&bfad->bfad_lock, flags); 222 bfa_iocfc_init(&bfad->bfa); 223 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 224 225 /* Set up interrupt handler for each vectors */ 226 if ((bfad->bfad_flags & BFAD_MSIX_ON) && 227 bfad_install_msix_handler(bfad)) { 228 printk(KERN_WARNING "%s: install_msix failed, bfad%d\n", 229 __func__, bfad->inst_no); 230 } 231 232 bfad_init_timer(bfad); 233 234 wait_for_completion(&bfad->comp); 235 236 if ((bfad->bfad_flags & BFAD_HAL_INIT_DONE)) { 237 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); 238 } else { 239 printk(KERN_WARNING 240 "bfa %s: bfa init failed\n", 241 bfad->pci_name); 242 bfad->bfad_flags |= BFAD_HAL_INIT_FAIL; 243 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); 244 } 245 246 break; 247 248 case BFAD_E_KTHREAD_CREATE_FAILED: 249 bfa_sm_set_state(bfad, bfad_sm_uninit); 250 break; 251 252 default: 253 bfa_sm_fault(bfad, event); 254 } 255 } 256 257 static void 258 bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event) 259 { 260 int retval; 261 unsigned long flags; 262 263 bfa_trc(bfad, event); 264 265 switch (event) { 266 case BFAD_E_INIT_SUCCESS: 267 kthread_stop(bfad->bfad_tsk); 268 spin_lock_irqsave(&bfad->bfad_lock, flags); 269 bfad->bfad_tsk = NULL; 270 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 271 272 retval = bfad_start_ops(bfad); 273 if (retval != BFA_STATUS_OK) 274 break; 275 bfa_sm_set_state(bfad, bfad_sm_operational); 276 break; 277 278 case BFAD_E_INTR_INIT_FAILED: 279 bfa_sm_set_state(bfad, bfad_sm_uninit); 280 kthread_stop(bfad->bfad_tsk); 281 spin_lock_irqsave(&bfad->bfad_lock, flags); 282 bfad->bfad_tsk = NULL; 283 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 284 break; 285 286 case BFAD_E_INIT_FAILED: 287 bfa_sm_set_state(bfad, bfad_sm_failed); 288 break; 289 default: 290 bfa_sm_fault(bfad, event); 291 } 292 } 293 294 static void 295 bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event) 296 { 297 int retval; 298 299 bfa_trc(bfad, event); 300 301 switch (event) { 302 case BFAD_E_INIT_SUCCESS: 303 retval = bfad_start_ops(bfad); 304 if (retval != BFA_STATUS_OK) 305 break; 306 bfa_sm_set_state(bfad, bfad_sm_operational); 307 break; 308 309 case BFAD_E_STOP: 310 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) 311 bfad_uncfg_pport(bfad); 312 if (bfad->bfad_flags & BFAD_FC4_PROBE_DONE) { 313 bfad_im_probe_undo(bfad); 314 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; 315 } 316 bfad_stop(bfad); 317 break; 318 319 case BFAD_E_EXIT_COMP: 320 bfa_sm_set_state(bfad, bfad_sm_uninit); 321 bfad_remove_intr(bfad); 322 del_timer_sync(&bfad->hal_tmo); 323 break; 324 325 default: 326 bfa_sm_fault(bfad, event); 327 } 328 } 329 330 static void 331 bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event) 332 { 333 bfa_trc(bfad, event); 334 335 switch (event) { 336 case BFAD_E_STOP: 337 bfa_sm_set_state(bfad, bfad_sm_fcs_exit); 338 bfad_fcs_stop(bfad); 339 break; 340 341 default: 342 bfa_sm_fault(bfad, event); 343 } 344 } 345 346 static void 347 bfad_sm_fcs_exit(struct bfad_s *bfad, enum bfad_sm_event event) 348 { 349 bfa_trc(bfad, event); 350 351 switch (event) { 352 case BFAD_E_FCS_EXIT_COMP: 353 bfa_sm_set_state(bfad, bfad_sm_stopping); 354 bfad_stop(bfad); 355 break; 356 357 default: 358 bfa_sm_fault(bfad, event); 359 } 360 } 361 362 static void 363 bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event) 364 { 365 bfa_trc(bfad, event); 366 367 switch (event) { 368 case BFAD_E_EXIT_COMP: 369 bfa_sm_set_state(bfad, bfad_sm_uninit); 370 bfad_remove_intr(bfad); 371 del_timer_sync(&bfad->hal_tmo); 372 bfad_im_probe_undo(bfad); 373 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; 374 bfad_uncfg_pport(bfad); 375 break; 376 377 default: 378 bfa_sm_fault(bfad, event); 379 break; 380 } 381 } 382 383 /* 384 * BFA callbacks 385 */ 386 void 387 bfad_hcb_comp(void *arg, bfa_status_t status) 388 { 389 struct bfad_hal_comp *fcomp = (struct bfad_hal_comp *)arg; 390 391 fcomp->status = status; 392 complete(&fcomp->comp); 393 } 394 395 /* 396 * bfa_init callback 397 */ 398 void 399 bfa_cb_init(void *drv, bfa_status_t init_status) 400 { 401 struct bfad_s *bfad = drv; 402 403 if (init_status == BFA_STATUS_OK) { 404 bfad->bfad_flags |= BFAD_HAL_INIT_DONE; 405 406 /* 407 * If BFAD_HAL_INIT_FAIL flag is set: 408 * Wake up the kernel thread to start 409 * the bfad operations after HAL init done 410 */ 411 if ((bfad->bfad_flags & BFAD_HAL_INIT_FAIL)) { 412 bfad->bfad_flags &= ~BFAD_HAL_INIT_FAIL; 413 wake_up_process(bfad->bfad_tsk); 414 } 415 } 416 417 complete(&bfad->comp); 418 } 419 420 /* 421 * BFA_FCS callbacks 422 */ 423 struct bfad_port_s * 424 bfa_fcb_lport_new(struct bfad_s *bfad, struct bfa_fcs_lport_s *port, 425 enum bfa_lport_role roles, struct bfad_vf_s *vf_drv, 426 struct bfad_vport_s *vp_drv) 427 { 428 bfa_status_t rc; 429 struct bfad_port_s *port_drv; 430 431 if (!vp_drv && !vf_drv) { 432 port_drv = &bfad->pport; 433 port_drv->pvb_type = BFAD_PORT_PHYS_BASE; 434 } else if (!vp_drv && vf_drv) { 435 port_drv = &vf_drv->base_port; 436 port_drv->pvb_type = BFAD_PORT_VF_BASE; 437 } else if (vp_drv && !vf_drv) { 438 port_drv = &vp_drv->drv_port; 439 port_drv->pvb_type = BFAD_PORT_PHYS_VPORT; 440 } else { 441 port_drv = &vp_drv->drv_port; 442 port_drv->pvb_type = BFAD_PORT_VF_VPORT; 443 } 444 445 port_drv->fcs_port = port; 446 port_drv->roles = roles; 447 448 if (roles & BFA_LPORT_ROLE_FCP_IM) { 449 rc = bfad_im_port_new(bfad, port_drv); 450 if (rc != BFA_STATUS_OK) { 451 bfad_im_port_delete(bfad, port_drv); 452 port_drv = NULL; 453 } 454 } 455 456 return port_drv; 457 } 458 459 /* 460 * FCS RPORT alloc callback, after successful PLOGI by FCS 461 */ 462 bfa_status_t 463 bfa_fcb_rport_alloc(struct bfad_s *bfad, struct bfa_fcs_rport_s **rport, 464 struct bfad_rport_s **rport_drv) 465 { 466 bfa_status_t rc = BFA_STATUS_OK; 467 468 *rport_drv = kzalloc(sizeof(struct bfad_rport_s), GFP_ATOMIC); 469 if (*rport_drv == NULL) { 470 rc = BFA_STATUS_ENOMEM; 471 goto ext; 472 } 473 474 *rport = &(*rport_drv)->fcs_rport; 475 476 ext: 477 return rc; 478 } 479 480 /* 481 * FCS PBC VPORT Create 482 */ 483 void 484 bfa_fcb_pbc_vport_create(struct bfad_s *bfad, struct bfi_pbc_vport_s pbc_vport) 485 { 486 487 struct bfa_lport_cfg_s port_cfg = {0}; 488 struct bfad_vport_s *vport; 489 int rc; 490 491 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL); 492 if (!vport) { 493 bfa_trc(bfad, 0); 494 return; 495 } 496 497 vport->drv_port.bfad = bfad; 498 port_cfg.roles = BFA_LPORT_ROLE_FCP_IM; 499 port_cfg.pwwn = pbc_vport.vp_pwwn; 500 port_cfg.nwwn = pbc_vport.vp_nwwn; 501 port_cfg.preboot_vp = BFA_TRUE; 502 503 rc = bfa_fcs_pbc_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, 0, 504 &port_cfg, vport); 505 506 if (rc != BFA_STATUS_OK) { 507 bfa_trc(bfad, 0); 508 return; 509 } 510 511 list_add_tail(&vport->list_entry, &bfad->pbc_vport_list); 512 } 513 514 void 515 bfad_hal_mem_release(struct bfad_s *bfad) 516 { 517 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; 518 struct bfa_mem_dma_s *dma_info, *dma_elem; 519 struct bfa_mem_kva_s *kva_info, *kva_elem; 520 struct list_head *dm_qe, *km_qe; 521 522 dma_info = &hal_meminfo->dma_info; 523 kva_info = &hal_meminfo->kva_info; 524 525 /* Iterate through the KVA meminfo queue */ 526 list_for_each(km_qe, &kva_info->qe) { 527 kva_elem = (struct bfa_mem_kva_s *) km_qe; 528 vfree(kva_elem->kva); 529 } 530 531 /* Iterate through the DMA meminfo queue */ 532 list_for_each(dm_qe, &dma_info->qe) { 533 dma_elem = (struct bfa_mem_dma_s *) dm_qe; 534 dma_free_coherent(&bfad->pcidev->dev, 535 dma_elem->mem_len, dma_elem->kva, 536 (dma_addr_t) dma_elem->dma); 537 } 538 539 memset(hal_meminfo, 0, sizeof(struct bfa_meminfo_s)); 540 } 541 542 void 543 bfad_update_hal_cfg(struct bfa_iocfc_cfg_s *bfa_cfg) 544 { 545 if (num_rports > 0) 546 bfa_cfg->fwcfg.num_rports = num_rports; 547 if (num_ios > 0) 548 bfa_cfg->fwcfg.num_ioim_reqs = num_ios; 549 if (num_tms > 0) 550 bfa_cfg->fwcfg.num_tskim_reqs = num_tms; 551 if (num_fcxps > 0 && num_fcxps <= BFA_FCXP_MAX) 552 bfa_cfg->fwcfg.num_fcxp_reqs = num_fcxps; 553 if (num_ufbufs > 0 && num_ufbufs <= BFA_UF_MAX) 554 bfa_cfg->fwcfg.num_uf_bufs = num_ufbufs; 555 if (reqq_size > 0) 556 bfa_cfg->drvcfg.num_reqq_elems = reqq_size; 557 if (rspq_size > 0) 558 bfa_cfg->drvcfg.num_rspq_elems = rspq_size; 559 if (num_sgpgs > 0 && num_sgpgs <= BFA_SGPG_MAX) 560 bfa_cfg->drvcfg.num_sgpgs = num_sgpgs; 561 562 /* 563 * populate the hal values back to the driver for sysfs use. 564 * otherwise, the default values will be shown as 0 in sysfs 565 */ 566 num_rports = bfa_cfg->fwcfg.num_rports; 567 num_ios = bfa_cfg->fwcfg.num_ioim_reqs; 568 num_tms = bfa_cfg->fwcfg.num_tskim_reqs; 569 num_fcxps = bfa_cfg->fwcfg.num_fcxp_reqs; 570 num_ufbufs = bfa_cfg->fwcfg.num_uf_bufs; 571 reqq_size = bfa_cfg->drvcfg.num_reqq_elems; 572 rspq_size = bfa_cfg->drvcfg.num_rspq_elems; 573 num_sgpgs = bfa_cfg->drvcfg.num_sgpgs; 574 } 575 576 bfa_status_t 577 bfad_hal_mem_alloc(struct bfad_s *bfad) 578 { 579 struct bfa_meminfo_s *hal_meminfo = &bfad->meminfo; 580 struct bfa_mem_dma_s *dma_info, *dma_elem; 581 struct bfa_mem_kva_s *kva_info, *kva_elem; 582 struct list_head *dm_qe, *km_qe; 583 bfa_status_t rc = BFA_STATUS_OK; 584 dma_addr_t phys_addr; 585 586 bfa_cfg_get_default(&bfad->ioc_cfg); 587 bfad_update_hal_cfg(&bfad->ioc_cfg); 588 bfad->cfg_data.ioc_queue_depth = bfad->ioc_cfg.fwcfg.num_ioim_reqs; 589 bfa_cfg_get_meminfo(&bfad->ioc_cfg, hal_meminfo, &bfad->bfa); 590 591 dma_info = &hal_meminfo->dma_info; 592 kva_info = &hal_meminfo->kva_info; 593 594 /* Iterate through the KVA meminfo queue */ 595 list_for_each(km_qe, &kva_info->qe) { 596 kva_elem = (struct bfa_mem_kva_s *) km_qe; 597 kva_elem->kva = vmalloc(kva_elem->mem_len); 598 if (kva_elem->kva == NULL) { 599 bfad_hal_mem_release(bfad); 600 rc = BFA_STATUS_ENOMEM; 601 goto ext; 602 } 603 memset(kva_elem->kva, 0, kva_elem->mem_len); 604 } 605 606 /* Iterate through the DMA meminfo queue */ 607 list_for_each(dm_qe, &dma_info->qe) { 608 dma_elem = (struct bfa_mem_dma_s *) dm_qe; 609 dma_elem->kva = dma_alloc_coherent(&bfad->pcidev->dev, 610 dma_elem->mem_len, 611 &phys_addr, GFP_KERNEL); 612 if (dma_elem->kva == NULL) { 613 bfad_hal_mem_release(bfad); 614 rc = BFA_STATUS_ENOMEM; 615 goto ext; 616 } 617 dma_elem->dma = phys_addr; 618 memset(dma_elem->kva, 0, dma_elem->mem_len); 619 } 620 ext: 621 return rc; 622 } 623 624 /* 625 * Create a vport under a vf. 626 */ 627 bfa_status_t 628 bfad_vport_create(struct bfad_s *bfad, u16 vf_id, 629 struct bfa_lport_cfg_s *port_cfg, struct device *dev) 630 { 631 struct bfad_vport_s *vport; 632 int rc = BFA_STATUS_OK; 633 unsigned long flags; 634 struct completion fcomp; 635 636 vport = kzalloc(sizeof(struct bfad_vport_s), GFP_KERNEL); 637 if (!vport) { 638 rc = BFA_STATUS_ENOMEM; 639 goto ext; 640 } 641 642 vport->drv_port.bfad = bfad; 643 spin_lock_irqsave(&bfad->bfad_lock, flags); 644 rc = bfa_fcs_vport_create(&vport->fcs_vport, &bfad->bfa_fcs, vf_id, 645 port_cfg, vport); 646 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 647 648 if (rc != BFA_STATUS_OK) 649 goto ext_free_vport; 650 651 if (port_cfg->roles & BFA_LPORT_ROLE_FCP_IM) { 652 rc = bfad_im_scsi_host_alloc(bfad, vport->drv_port.im_port, 653 dev); 654 if (rc != BFA_STATUS_OK) 655 goto ext_free_fcs_vport; 656 } 657 658 spin_lock_irqsave(&bfad->bfad_lock, flags); 659 bfa_fcs_vport_start(&vport->fcs_vport); 660 list_add_tail(&vport->list_entry, &bfad->vport_list); 661 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 662 663 return BFA_STATUS_OK; 664 665 ext_free_fcs_vport: 666 spin_lock_irqsave(&bfad->bfad_lock, flags); 667 vport->comp_del = &fcomp; 668 init_completion(vport->comp_del); 669 bfa_fcs_vport_delete(&vport->fcs_vport); 670 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 671 wait_for_completion(vport->comp_del); 672 ext_free_vport: 673 kfree(vport); 674 ext: 675 return rc; 676 } 677 678 void 679 bfad_bfa_tmo(unsigned long data) 680 { 681 struct bfad_s *bfad = (struct bfad_s *) data; 682 unsigned long flags; 683 struct list_head doneq; 684 685 spin_lock_irqsave(&bfad->bfad_lock, flags); 686 687 bfa_timer_beat(&bfad->bfa.timer_mod); 688 689 bfa_comp_deq(&bfad->bfa, &doneq); 690 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 691 692 if (!list_empty(&doneq)) { 693 bfa_comp_process(&bfad->bfa, &doneq); 694 spin_lock_irqsave(&bfad->bfad_lock, flags); 695 bfa_comp_free(&bfad->bfa, &doneq); 696 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 697 } 698 699 mod_timer(&bfad->hal_tmo, 700 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); 701 } 702 703 void 704 bfad_init_timer(struct bfad_s *bfad) 705 { 706 init_timer(&bfad->hal_tmo); 707 bfad->hal_tmo.function = bfad_bfa_tmo; 708 bfad->hal_tmo.data = (unsigned long)bfad; 709 710 mod_timer(&bfad->hal_tmo, 711 jiffies + msecs_to_jiffies(BFA_TIMER_FREQ)); 712 } 713 714 int 715 bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad) 716 { 717 int rc = -ENODEV; 718 719 if (pci_enable_device(pdev)) { 720 printk(KERN_ERR "pci_enable_device fail %p\n", pdev); 721 goto out; 722 } 723 724 if (pci_request_regions(pdev, BFAD_DRIVER_NAME)) 725 goto out_disable_device; 726 727 pci_set_master(pdev); 728 729 730 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0) || 731 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)) { 732 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) || 733 (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) { 734 printk(KERN_ERR "pci_set_dma_mask fail %p\n", pdev); 735 goto out_release_region; 736 } 737 } 738 739 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0)); 740 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2)); 741 742 if (bfad->pci_bar0_kva == NULL) { 743 printk(KERN_ERR "Fail to map bar0\n"); 744 goto out_release_region; 745 } 746 747 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn); 748 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn); 749 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva; 750 bfad->hal_pcidev.device_id = pdev->device; 751 bfad->hal_pcidev.ssid = pdev->subsystem_device; 752 bfad->pci_name = pci_name(pdev); 753 754 bfad->pci_attr.vendor_id = pdev->vendor; 755 bfad->pci_attr.device_id = pdev->device; 756 bfad->pci_attr.ssid = pdev->subsystem_device; 757 bfad->pci_attr.ssvid = pdev->subsystem_vendor; 758 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn); 759 760 bfad->pcidev = pdev; 761 762 /* Adjust PCIe Maximum Read Request Size */ 763 if (pcie_max_read_reqsz > 0) { 764 int pcie_cap_reg; 765 u16 pcie_dev_ctl; 766 u16 mask = 0xffff; 767 768 switch (pcie_max_read_reqsz) { 769 case 128: 770 mask = 0x0; 771 break; 772 case 256: 773 mask = 0x1000; 774 break; 775 case 512: 776 mask = 0x2000; 777 break; 778 case 1024: 779 mask = 0x3000; 780 break; 781 case 2048: 782 mask = 0x4000; 783 break; 784 case 4096: 785 mask = 0x5000; 786 break; 787 default: 788 break; 789 } 790 791 pcie_cap_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP); 792 if (mask != 0xffff && pcie_cap_reg) { 793 pcie_cap_reg += 0x08; 794 pci_read_config_word(pdev, pcie_cap_reg, &pcie_dev_ctl); 795 if ((pcie_dev_ctl & 0x7000) != mask) { 796 printk(KERN_WARNING "BFA[%s]: " 797 "pcie_max_read_request_size is %d, " 798 "reset to %d\n", bfad->pci_name, 799 (1 << ((pcie_dev_ctl & 0x7000) >> 12)) << 7, 800 pcie_max_read_reqsz); 801 802 pcie_dev_ctl &= ~0x7000; 803 pci_write_config_word(pdev, pcie_cap_reg, 804 pcie_dev_ctl | mask); 805 } 806 } 807 } 808 809 return 0; 810 811 out_release_region: 812 pci_release_regions(pdev); 813 out_disable_device: 814 pci_disable_device(pdev); 815 out: 816 return rc; 817 } 818 819 void 820 bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad) 821 { 822 pci_iounmap(pdev, bfad->pci_bar0_kva); 823 pci_iounmap(pdev, bfad->pci_bar2_kva); 824 pci_release_regions(pdev); 825 pci_disable_device(pdev); 826 pci_set_drvdata(pdev, NULL); 827 } 828 829 bfa_status_t 830 bfad_drv_init(struct bfad_s *bfad) 831 { 832 bfa_status_t rc; 833 unsigned long flags; 834 835 bfad->cfg_data.rport_del_timeout = rport_del_timeout; 836 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth; 837 bfad->cfg_data.io_max_sge = bfa_io_max_sge; 838 bfad->cfg_data.binding_method = FCP_PWWN_BINDING; 839 840 rc = bfad_hal_mem_alloc(bfad); 841 if (rc != BFA_STATUS_OK) { 842 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n", 843 bfad->inst_no); 844 printk(KERN_WARNING 845 "Not enough memory to attach all Brocade HBA ports, %s", 846 "System may need more memory.\n"); 847 goto out_hal_mem_alloc_failure; 848 } 849 850 bfad->bfa.trcmod = bfad->trcmod; 851 bfad->bfa.plog = &bfad->plog_buf; 852 bfa_plog_init(&bfad->plog_buf); 853 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START, 854 0, "Driver Attach"); 855 856 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo, 857 &bfad->hal_pcidev); 858 859 /* FCS INIT */ 860 spin_lock_irqsave(&bfad->bfad_lock, flags); 861 bfad->bfa_fcs.trcmod = bfad->trcmod; 862 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE); 863 bfad->bfa_fcs.fdmi_enabled = fdmi_enable; 864 bfa_fcs_init(&bfad->bfa_fcs); 865 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 866 867 bfad->bfad_flags |= BFAD_DRV_INIT_DONE; 868 869 /* configure base port */ 870 rc = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); 871 if (rc != BFA_STATUS_OK) 872 goto out_cfg_pport_fail; 873 874 return BFA_STATUS_OK; 875 876 out_cfg_pport_fail: 877 /* fcs exit - on cfg pport failure */ 878 spin_lock_irqsave(&bfad->bfad_lock, flags); 879 init_completion(&bfad->comp); 880 bfad->pport.flags |= BFAD_PORT_DELETE; 881 bfa_fcs_exit(&bfad->bfa_fcs); 882 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 883 wait_for_completion(&bfad->comp); 884 /* bfa detach - free hal memory */ 885 bfa_detach(&bfad->bfa); 886 bfad_hal_mem_release(bfad); 887 out_hal_mem_alloc_failure: 888 return BFA_STATUS_FAILED; 889 } 890 891 void 892 bfad_drv_uninit(struct bfad_s *bfad) 893 { 894 unsigned long flags; 895 896 spin_lock_irqsave(&bfad->bfad_lock, flags); 897 init_completion(&bfad->comp); 898 bfa_iocfc_stop(&bfad->bfa); 899 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 900 wait_for_completion(&bfad->comp); 901 902 del_timer_sync(&bfad->hal_tmo); 903 bfa_isr_disable(&bfad->bfa); 904 bfa_detach(&bfad->bfa); 905 bfad_remove_intr(bfad); 906 bfad_hal_mem_release(bfad); 907 908 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE; 909 } 910 911 void 912 bfad_drv_start(struct bfad_s *bfad) 913 { 914 unsigned long flags; 915 916 spin_lock_irqsave(&bfad->bfad_lock, flags); 917 bfa_iocfc_start(&bfad->bfa); 918 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs); 919 bfa_fcs_fabric_modstart(&bfad->bfa_fcs); 920 bfad->bfad_flags |= BFAD_HAL_START_DONE; 921 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 922 923 if (bfad->im) 924 flush_workqueue(bfad->im->drv_workq); 925 } 926 927 void 928 bfad_fcs_stop(struct bfad_s *bfad) 929 { 930 unsigned long flags; 931 932 spin_lock_irqsave(&bfad->bfad_lock, flags); 933 init_completion(&bfad->comp); 934 bfad->pport.flags |= BFAD_PORT_DELETE; 935 bfa_fcs_exit(&bfad->bfa_fcs); 936 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 937 wait_for_completion(&bfad->comp); 938 939 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); 940 } 941 942 void 943 bfad_stop(struct bfad_s *bfad) 944 { 945 unsigned long flags; 946 947 spin_lock_irqsave(&bfad->bfad_lock, flags); 948 init_completion(&bfad->comp); 949 bfa_iocfc_stop(&bfad->bfa); 950 bfad->bfad_flags &= ~BFAD_HAL_START_DONE; 951 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 952 wait_for_completion(&bfad->comp); 953 954 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP); 955 } 956 957 bfa_status_t 958 bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role) 959 { 960 int rc = BFA_STATUS_OK; 961 962 /* Allocate scsi_host for the physical port */ 963 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 964 (role & BFA_LPORT_ROLE_FCP_IM)) { 965 if (bfad->pport.im_port == NULL) { 966 rc = BFA_STATUS_FAILED; 967 goto out; 968 } 969 970 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port, 971 &bfad->pcidev->dev); 972 if (rc != BFA_STATUS_OK) 973 goto out; 974 975 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM; 976 } 977 978 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE; 979 980 out: 981 return rc; 982 } 983 984 void 985 bfad_uncfg_pport(struct bfad_s *bfad) 986 { 987 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 988 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) { 989 bfad_im_scsi_host_free(bfad, bfad->pport.im_port); 990 bfad_im_port_clean(bfad->pport.im_port); 991 kfree(bfad->pport.im_port); 992 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM; 993 } 994 995 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE; 996 } 997 998 bfa_status_t 999 bfad_start_ops(struct bfad_s *bfad) { 1000 1001 int retval; 1002 unsigned long flags; 1003 struct bfad_vport_s *vport, *vport_new; 1004 struct bfa_fcs_driver_info_s driver_info; 1005 1006 /* Limit min/max. xfer size to [64k-32MB] */ 1007 if (max_xfer_size < BFAD_MIN_SECTORS >> 1) 1008 max_xfer_size = BFAD_MIN_SECTORS >> 1; 1009 if (max_xfer_size > BFAD_MAX_SECTORS >> 1) 1010 max_xfer_size = BFAD_MAX_SECTORS >> 1; 1011 1012 /* Fill the driver_info info to fcs*/ 1013 memset(&driver_info, 0, sizeof(driver_info)); 1014 strncpy(driver_info.version, BFAD_DRIVER_VERSION, 1015 sizeof(driver_info.version) - 1); 1016 if (host_name) 1017 strncpy(driver_info.host_machine_name, host_name, 1018 sizeof(driver_info.host_machine_name) - 1); 1019 if (os_name) 1020 strncpy(driver_info.host_os_name, os_name, 1021 sizeof(driver_info.host_os_name) - 1); 1022 if (os_patch) 1023 strncpy(driver_info.host_os_patch, os_patch, 1024 sizeof(driver_info.host_os_patch) - 1); 1025 1026 strncpy(driver_info.os_device_name, bfad->pci_name, 1027 sizeof(driver_info.os_device_name - 1)); 1028 1029 /* FCS driver info init */ 1030 spin_lock_irqsave(&bfad->bfad_lock, flags); 1031 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info); 1032 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1033 1034 /* 1035 * FCS update cfg - reset the pwwn/nwwn of fabric base logical port 1036 * with values learned during bfa_init firmware GETATTR REQ. 1037 */ 1038 bfa_fcs_update_cfg(&bfad->bfa_fcs); 1039 1040 /* Setup fc host fixed attribute if the lk supports */ 1041 bfad_fc_host_init(bfad->pport.im_port); 1042 1043 /* BFAD level FC4 IM specific resource allocation */ 1044 retval = bfad_im_probe(bfad); 1045 if (retval != BFA_STATUS_OK) { 1046 printk(KERN_WARNING "bfad_im_probe failed\n"); 1047 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing)) 1048 bfa_sm_set_state(bfad, bfad_sm_failed); 1049 bfad_im_probe_undo(bfad); 1050 bfad->bfad_flags &= ~BFAD_FC4_PROBE_DONE; 1051 bfad_uncfg_pport(bfad); 1052 bfad_stop(bfad); 1053 return BFA_STATUS_FAILED; 1054 } else 1055 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE; 1056 1057 bfad_drv_start(bfad); 1058 1059 /* Complete pbc vport create */ 1060 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list, 1061 list_entry) { 1062 struct fc_vport_identifiers vid; 1063 struct fc_vport *fc_vport; 1064 char pwwn_buf[BFA_STRING_32]; 1065 1066 memset(&vid, 0, sizeof(vid)); 1067 vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1068 vid.vport_type = FC_PORTTYPE_NPIV; 1069 vid.disable = false; 1070 vid.node_name = wwn_to_u64((u8 *) 1071 (&((vport->fcs_vport).lport.port_cfg.nwwn))); 1072 vid.port_name = wwn_to_u64((u8 *) 1073 (&((vport->fcs_vport).lport.port_cfg.pwwn))); 1074 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid); 1075 if (!fc_vport) { 1076 wwn2str(pwwn_buf, vid.port_name); 1077 printk(KERN_WARNING "bfad%d: failed to create pbc vport" 1078 " %s\n", bfad->inst_no, pwwn_buf); 1079 } 1080 list_del(&vport->list_entry); 1081 kfree(vport); 1082 } 1083 1084 /* 1085 * If bfa_linkup_delay is set to -1 default; try to retrive the 1086 * value using the bfad_get_linkup_delay(); else use the 1087 * passed in module param value as the bfa_linkup_delay. 1088 */ 1089 if (bfa_linkup_delay < 0) { 1090 bfa_linkup_delay = bfad_get_linkup_delay(bfad); 1091 bfad_rport_online_wait(bfad); 1092 bfa_linkup_delay = -1; 1093 } else 1094 bfad_rport_online_wait(bfad); 1095 1096 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n"); 1097 1098 return BFA_STATUS_OK; 1099 } 1100 1101 int 1102 bfad_worker(void *ptr) 1103 { 1104 struct bfad_s *bfad; 1105 unsigned long flags; 1106 1107 bfad = (struct bfad_s *)ptr; 1108 1109 while (!kthread_should_stop()) { 1110 1111 /* Send event BFAD_E_INIT_SUCCESS */ 1112 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); 1113 1114 spin_lock_irqsave(&bfad->bfad_lock, flags); 1115 bfad->bfad_tsk = NULL; 1116 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1117 1118 break; 1119 } 1120 1121 return 0; 1122 } 1123 1124 /* 1125 * BFA driver interrupt functions 1126 */ 1127 irqreturn_t 1128 bfad_intx(int irq, void *dev_id) 1129 { 1130 struct bfad_s *bfad = dev_id; 1131 struct list_head doneq; 1132 unsigned long flags; 1133 bfa_boolean_t rc; 1134 1135 spin_lock_irqsave(&bfad->bfad_lock, flags); 1136 rc = bfa_intx(&bfad->bfa); 1137 if (!rc) { 1138 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1139 return IRQ_NONE; 1140 } 1141 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 static irqreturn_t 1158 bfad_msix(int irq, void *dev_id) 1159 { 1160 struct bfad_msix_s *vec = dev_id; 1161 struct bfad_s *bfad = vec->bfad; 1162 struct list_head doneq; 1163 unsigned long flags; 1164 1165 spin_lock_irqsave(&bfad->bfad_lock, flags); 1166 1167 bfa_msix(&bfad->bfa, vec->msix.entry); 1168 bfa_comp_deq(&bfad->bfa, &doneq); 1169 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1170 1171 if (!list_empty(&doneq)) { 1172 bfa_comp_process(&bfad->bfa, &doneq); 1173 1174 spin_lock_irqsave(&bfad->bfad_lock, flags); 1175 bfa_comp_free(&bfad->bfa, &doneq); 1176 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1177 } 1178 1179 return IRQ_HANDLED; 1180 } 1181 1182 /* 1183 * Initialize the MSIX entry table. 1184 */ 1185 static void 1186 bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries, 1187 int mask, int max_bit) 1188 { 1189 int i; 1190 int match = 0x00000001; 1191 1192 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) { 1193 if (mask & match) { 1194 bfad->msix_tab[bfad->nvec].msix.entry = i; 1195 bfad->msix_tab[bfad->nvec].bfad = bfad; 1196 msix_entries[bfad->nvec].entry = i; 1197 bfad->nvec++; 1198 } 1199 1200 match <<= 1; 1201 } 1202 1203 } 1204 1205 int 1206 bfad_install_msix_handler(struct bfad_s *bfad) 1207 { 1208 int i, error = 0; 1209 1210 for (i = 0; i < bfad->nvec; i++) { 1211 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s", 1212 bfad->pci_name, 1213 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ? 1214 msix_name_cb[i] : msix_name_ct[i])); 1215 1216 error = request_irq(bfad->msix_tab[i].msix.vector, 1217 (irq_handler_t) bfad_msix, 0, 1218 bfad->msix_tab[i].name, &bfad->msix_tab[i]); 1219 bfa_trc(bfad, i); 1220 bfa_trc(bfad, bfad->msix_tab[i].msix.vector); 1221 if (error) { 1222 int j; 1223 1224 for (j = 0; j < i; j++) 1225 free_irq(bfad->msix_tab[j].msix.vector, 1226 &bfad->msix_tab[j]); 1227 1228 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1229 pci_disable_msix(bfad->pcidev); 1230 1231 return 1; 1232 } 1233 } 1234 1235 return 0; 1236 } 1237 1238 /* 1239 * Setup MSIX based interrupt. 1240 */ 1241 int 1242 bfad_setup_intr(struct bfad_s *bfad) 1243 { 1244 int error = 0; 1245 u32 mask = 0, i, num_bit = 0, max_bit = 0; 1246 struct msix_entry msix_entries[MAX_MSIX_ENTRY]; 1247 struct pci_dev *pdev = bfad->pcidev; 1248 u16 reg; 1249 1250 /* Call BFA to get the msix map for this PCI function. */ 1251 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit); 1252 1253 /* Set up the msix entry table */ 1254 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit); 1255 1256 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) || 1257 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) { 1258 1259 error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec); 1260 if (error) { 1261 /* 1262 * Only error number of vector is available. 1263 * We don't have a mechanism to map multiple 1264 * interrupts into one vector, so even if we 1265 * can try to request less vectors, we don't 1266 * know how to associate interrupt events to 1267 * vectors. Linux doesn't duplicate vectors 1268 * in the MSIX table for this case. 1269 */ 1270 1271 printk(KERN_WARNING "bfad%d: " 1272 "pci_enable_msix failed (%d)," 1273 " use line based.\n", bfad->inst_no, error); 1274 1275 goto line_based; 1276 } 1277 1278 /* Disable INTX in MSI-X mode */ 1279 pci_read_config_word(pdev, PCI_COMMAND, ®); 1280 1281 if (!(reg & PCI_COMMAND_INTX_DISABLE)) 1282 pci_write_config_word(pdev, PCI_COMMAND, 1283 reg | PCI_COMMAND_INTX_DISABLE); 1284 1285 /* Save the vectors */ 1286 for (i = 0; i < bfad->nvec; i++) { 1287 bfa_trc(bfad, msix_entries[i].vector); 1288 bfad->msix_tab[i].msix.vector = msix_entries[i].vector; 1289 } 1290 1291 bfa_msix_init(&bfad->bfa, bfad->nvec); 1292 1293 bfad->bfad_flags |= BFAD_MSIX_ON; 1294 1295 return error; 1296 } 1297 1298 line_based: 1299 error = 0; 1300 if (request_irq 1301 (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS, 1302 BFAD_DRIVER_NAME, bfad) != 0) { 1303 /* Enable interrupt handler failed */ 1304 return 1; 1305 } 1306 bfad->bfad_flags |= BFAD_INTX_ON; 1307 1308 return error; 1309 } 1310 1311 void 1312 bfad_remove_intr(struct bfad_s *bfad) 1313 { 1314 int i; 1315 1316 if (bfad->bfad_flags & BFAD_MSIX_ON) { 1317 for (i = 0; i < bfad->nvec; i++) 1318 free_irq(bfad->msix_tab[i].msix.vector, 1319 &bfad->msix_tab[i]); 1320 1321 pci_disable_msix(bfad->pcidev); 1322 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1323 } else if (bfad->bfad_flags & BFAD_INTX_ON) { 1324 free_irq(bfad->pcidev->irq, bfad); 1325 } 1326 } 1327 1328 /* 1329 * PCI probe entry. 1330 */ 1331 int 1332 bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) 1333 { 1334 struct bfad_s *bfad; 1335 int error = -ENODEV, retval, i; 1336 1337 /* For single port cards - only claim function 0 */ 1338 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) && 1339 (PCI_FUNC(pdev->devfn) != 0)) 1340 return -ENODEV; 1341 1342 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL); 1343 if (!bfad) { 1344 error = -ENOMEM; 1345 goto out; 1346 } 1347 1348 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL); 1349 if (!bfad->trcmod) { 1350 printk(KERN_WARNING "Error alloc trace buffer!\n"); 1351 error = -ENOMEM; 1352 goto out_alloc_trace_failure; 1353 } 1354 1355 /* TRACE INIT */ 1356 bfa_trc_init(bfad->trcmod); 1357 bfa_trc(bfad, bfad_inst); 1358 1359 /* AEN INIT */ 1360 INIT_LIST_HEAD(&bfad->free_aen_q); 1361 INIT_LIST_HEAD(&bfad->active_aen_q); 1362 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++) 1363 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q); 1364 1365 if (!(bfad_load_fwimg(pdev))) { 1366 kfree(bfad->trcmod); 1367 goto out_alloc_trace_failure; 1368 } 1369 1370 retval = bfad_pci_init(pdev, bfad); 1371 if (retval) { 1372 printk(KERN_WARNING "bfad_pci_init failure!\n"); 1373 error = retval; 1374 goto out_pci_init_failure; 1375 } 1376 1377 mutex_lock(&bfad_mutex); 1378 bfad->inst_no = bfad_inst++; 1379 list_add_tail(&bfad->list_entry, &bfad_list); 1380 mutex_unlock(&bfad_mutex); 1381 1382 /* Initializing the state machine: State set to uninit */ 1383 bfa_sm_set_state(bfad, bfad_sm_uninit); 1384 1385 spin_lock_init(&bfad->bfad_lock); 1386 spin_lock_init(&bfad->bfad_aen_spinlock); 1387 1388 pci_set_drvdata(pdev, bfad); 1389 1390 bfad->ref_count = 0; 1391 bfad->pport.bfad = bfad; 1392 INIT_LIST_HEAD(&bfad->pbc_vport_list); 1393 INIT_LIST_HEAD(&bfad->vport_list); 1394 1395 /* Setup the debugfs node for this bfad */ 1396 if (bfa_debugfs_enable) 1397 bfad_debugfs_init(&bfad->pport); 1398 1399 retval = bfad_drv_init(bfad); 1400 if (retval != BFA_STATUS_OK) 1401 goto out_drv_init_failure; 1402 1403 bfa_sm_send_event(bfad, BFAD_E_CREATE); 1404 1405 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit)) 1406 goto out_bfad_sm_failure; 1407 1408 return 0; 1409 1410 out_bfad_sm_failure: 1411 bfa_detach(&bfad->bfa); 1412 bfad_hal_mem_release(bfad); 1413 out_drv_init_failure: 1414 /* Remove the debugfs node for this bfad */ 1415 kfree(bfad->regdata); 1416 bfad_debugfs_exit(&bfad->pport); 1417 mutex_lock(&bfad_mutex); 1418 bfad_inst--; 1419 list_del(&bfad->list_entry); 1420 mutex_unlock(&bfad_mutex); 1421 bfad_pci_uninit(pdev, bfad); 1422 out_pci_init_failure: 1423 kfree(bfad->trcmod); 1424 out_alloc_trace_failure: 1425 kfree(bfad); 1426 out: 1427 return error; 1428 } 1429 1430 /* 1431 * PCI remove entry. 1432 */ 1433 void 1434 bfad_pci_remove(struct pci_dev *pdev) 1435 { 1436 struct bfad_s *bfad = pci_get_drvdata(pdev); 1437 unsigned long flags; 1438 1439 bfa_trc(bfad, bfad->inst_no); 1440 1441 spin_lock_irqsave(&bfad->bfad_lock, flags); 1442 if (bfad->bfad_tsk != NULL) { 1443 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1444 kthread_stop(bfad->bfad_tsk); 1445 } else { 1446 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1447 } 1448 1449 /* Send Event BFAD_E_STOP */ 1450 bfa_sm_send_event(bfad, BFAD_E_STOP); 1451 1452 /* Driver detach and dealloc mem */ 1453 spin_lock_irqsave(&bfad->bfad_lock, flags); 1454 bfa_detach(&bfad->bfa); 1455 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1456 bfad_hal_mem_release(bfad); 1457 1458 /* Remove the debugfs node for this bfad */ 1459 kfree(bfad->regdata); 1460 bfad_debugfs_exit(&bfad->pport); 1461 1462 /* Cleaning the BFAD instance */ 1463 mutex_lock(&bfad_mutex); 1464 bfad_inst--; 1465 list_del(&bfad->list_entry); 1466 mutex_unlock(&bfad_mutex); 1467 bfad_pci_uninit(pdev, bfad); 1468 1469 kfree(bfad->trcmod); 1470 kfree(bfad); 1471 } 1472 1473 struct pci_device_id bfad_id_table[] = { 1474 { 1475 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1476 .device = BFA_PCI_DEVICE_ID_FC_8G2P, 1477 .subvendor = PCI_ANY_ID, 1478 .subdevice = PCI_ANY_ID, 1479 }, 1480 { 1481 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1482 .device = BFA_PCI_DEVICE_ID_FC_8G1P, 1483 .subvendor = PCI_ANY_ID, 1484 .subdevice = PCI_ANY_ID, 1485 }, 1486 { 1487 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1488 .device = BFA_PCI_DEVICE_ID_CT, 1489 .subvendor = PCI_ANY_ID, 1490 .subdevice = PCI_ANY_ID, 1491 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1492 .class_mask = ~0, 1493 }, 1494 { 1495 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1496 .device = BFA_PCI_DEVICE_ID_CT_FC, 1497 .subvendor = PCI_ANY_ID, 1498 .subdevice = PCI_ANY_ID, 1499 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1500 .class_mask = ~0, 1501 }, 1502 { 1503 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1504 .device = BFA_PCI_DEVICE_ID_CT2, 1505 .subvendor = PCI_ANY_ID, 1506 .subdevice = PCI_ANY_ID, 1507 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1508 .class_mask = ~0, 1509 }, 1510 1511 {0, 0}, 1512 }; 1513 1514 MODULE_DEVICE_TABLE(pci, bfad_id_table); 1515 1516 static struct pci_driver bfad_pci_driver = { 1517 .name = BFAD_DRIVER_NAME, 1518 .id_table = bfad_id_table, 1519 .probe = bfad_pci_probe, 1520 .remove = __devexit_p(bfad_pci_remove), 1521 }; 1522 1523 /* 1524 * Driver module init. 1525 */ 1526 static int __init 1527 bfad_init(void) 1528 { 1529 int error = 0; 1530 1531 printk(KERN_INFO "Brocade BFA FC/FCOE SCSI driver - version: %s\n", 1532 BFAD_DRIVER_VERSION); 1533 1534 if (num_sgpgs > 0) 1535 num_sgpgs_parm = num_sgpgs; 1536 1537 error = bfad_im_module_init(); 1538 if (error) { 1539 error = -ENOMEM; 1540 printk(KERN_WARNING "bfad_im_module_init failure\n"); 1541 goto ext; 1542 } 1543 1544 if (strcmp(FCPI_NAME, " fcpim") == 0) 1545 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM; 1546 1547 bfa_auto_recover = ioc_auto_recover; 1548 bfa_fcs_rport_set_del_timeout(rport_del_timeout); 1549 1550 error = pci_register_driver(&bfad_pci_driver); 1551 if (error) { 1552 printk(KERN_WARNING "pci_register_driver failure\n"); 1553 goto ext; 1554 } 1555 1556 return 0; 1557 1558 ext: 1559 bfad_im_module_exit(); 1560 return error; 1561 } 1562 1563 /* 1564 * Driver module exit. 1565 */ 1566 static void __exit 1567 bfad_exit(void) 1568 { 1569 pci_unregister_driver(&bfad_pci_driver); 1570 bfad_im_module_exit(); 1571 bfad_free_fwimg(); 1572 } 1573 1574 /* Firmware handling */ 1575 static void 1576 bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 1577 u32 *bfi_image_size, char *fw_name) 1578 { 1579 const struct firmware *fw; 1580 1581 if (request_firmware(&fw, fw_name, &pdev->dev)) { 1582 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name); 1583 *bfi_image = NULL; 1584 goto out; 1585 } 1586 1587 *bfi_image = vmalloc(fw->size); 1588 if (NULL == *bfi_image) { 1589 printk(KERN_ALERT "Fail to allocate buffer for fw image " 1590 "size=%x!\n", (u32) fw->size); 1591 goto out; 1592 } 1593 1594 memcpy(*bfi_image, fw->data, fw->size); 1595 *bfi_image_size = fw->size/sizeof(u32); 1596 out: 1597 release_firmware(fw); 1598 } 1599 1600 static u32 * 1601 bfad_load_fwimg(struct pci_dev *pdev) 1602 { 1603 if (pdev->device == BFA_PCI_DEVICE_ID_CT2) { 1604 if (bfi_image_ct2_size == 0) 1605 bfad_read_firmware(pdev, &bfi_image_ct2, 1606 &bfi_image_ct2_size, BFAD_FW_FILE_CT2); 1607 return bfi_image_ct2; 1608 } else if (bfa_asic_id_ct(pdev->device)) { 1609 if (bfi_image_ct_size == 0) 1610 bfad_read_firmware(pdev, &bfi_image_ct, 1611 &bfi_image_ct_size, BFAD_FW_FILE_CT); 1612 return bfi_image_ct; 1613 } else { 1614 if (bfi_image_cb_size == 0) 1615 bfad_read_firmware(pdev, &bfi_image_cb, 1616 &bfi_image_cb_size, BFAD_FW_FILE_CB); 1617 return bfi_image_cb; 1618 } 1619 } 1620 1621 static void 1622 bfad_free_fwimg(void) 1623 { 1624 if (bfi_image_ct2_size && bfi_image_ct2) 1625 vfree(bfi_image_ct2); 1626 if (bfi_image_ct_size && bfi_image_ct) 1627 vfree(bfi_image_ct); 1628 if (bfi_image_cb_size && bfi_image_cb) 1629 vfree(bfi_image_cb); 1630 } 1631 1632 module_init(bfad_init); 1633 module_exit(bfad_exit); 1634 MODULE_LICENSE("GPL"); 1635 MODULE_DESCRIPTION("Brocade Fibre Channel HBA Driver" BFAD_PROTO_NAME); 1636 MODULE_AUTHOR("Brocade Communications Systems, Inc."); 1637 MODULE_VERSION(BFAD_DRIVER_VERSION); 1638