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 31BFA_TRC_FILE(LDRV, BFAD); 32DEFINE_MUTEX(bfad_mutex); 33LIST_HEAD(bfad_list); 34 35static int bfad_inst; 36static int num_sgpgs_parm; 37int supported_fc4s; 38char *host_name, *os_name, *os_patch; 39int num_rports, num_ios, num_tms; 40int num_fcxps, num_ufbufs; 41int reqq_size, rspq_size, num_sgpgs; 42int rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT; 43int bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH; 44int bfa_io_max_sge = BFAD_IO_MAX_SGE; 45int bfa_log_level = 3; /* WARNING log level */ 46int ioc_auto_recover = BFA_TRUE; 47int bfa_linkup_delay = -1; 48int fdmi_enable = BFA_TRUE; 49int pcie_max_read_reqsz; 50int bfa_debugfs_enable = 1; 51int msix_disable_cb = 0, msix_disable_ct = 0; 52int max_xfer_size = BFAD_MAX_SECTORS >> 1; 53static int max_rport_logins = BFA_FCS_MAX_RPORT_LOGINS; 54 55/* Firmware releated */ 56u32 bfi_image_cb_size, bfi_image_ct_size, bfi_image_ct2_size; 57u32 *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 63static u32 *bfad_load_fwimg(struct pci_dev *pdev); 64static void bfad_free_fwimg(void); 65static void bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 66 u32 *bfi_image_size, char *fw_name); 67 68static const char *msix_name_ct[] = { 69 "ctrl", 70 "cpe0", "cpe1", "cpe2", "cpe3", 71 "rme0", "rme1", "rme2", "rme3" }; 72 73static const char *msix_name_cb[] = { 74 "cpe0", "cpe1", "cpe2", "cpe3", 75 "rme0", "rme1", "rme2", "rme3", 76 "eemc", "elpu0", "elpu1", "epss", "mlpu" }; 77 78MODULE_FIRMWARE(BFAD_FW_FILE_CB); 79MODULE_FIRMWARE(BFAD_FW_FILE_CT); 80MODULE_FIRMWARE(BFAD_FW_FILE_CT2); 81 82module_param(os_name, charp, S_IRUGO | S_IWUSR); 83MODULE_PARM_DESC(os_name, "OS name of the hba host machine"); 84module_param(os_patch, charp, S_IRUGO | S_IWUSR); 85MODULE_PARM_DESC(os_patch, "OS patch level of the hba host machine"); 86module_param(host_name, charp, S_IRUGO | S_IWUSR); 87MODULE_PARM_DESC(host_name, "Hostname of the hba host machine"); 88module_param(num_rports, int, S_IRUGO | S_IWUSR); 89MODULE_PARM_DESC(num_rports, "Max number of rports supported per port " 90 "(physical/logical), default=1024"); 91module_param(num_ios, int, S_IRUGO | S_IWUSR); 92MODULE_PARM_DESC(num_ios, "Max number of ioim requests, default=2000"); 93module_param(num_tms, int, S_IRUGO | S_IWUSR); 94MODULE_PARM_DESC(num_tms, "Max number of task im requests, default=128"); 95module_param(num_fcxps, int, S_IRUGO | S_IWUSR); 96MODULE_PARM_DESC(num_fcxps, "Max number of fcxp requests, default=64"); 97module_param(num_ufbufs, int, S_IRUGO | S_IWUSR); 98MODULE_PARM_DESC(num_ufbufs, "Max number of unsolicited frame " 99 "buffers, default=64"); 100module_param(reqq_size, int, S_IRUGO | S_IWUSR); 101MODULE_PARM_DESC(reqq_size, "Max number of request queue elements, " 102 "default=256"); 103module_param(rspq_size, int, S_IRUGO | S_IWUSR); 104MODULE_PARM_DESC(rspq_size, "Max number of response queue elements, " 105 "default=64"); 106module_param(num_sgpgs, int, S_IRUGO | S_IWUSR); 107MODULE_PARM_DESC(num_sgpgs, "Number of scatter/gather pages, default=2048"); 108module_param(rport_del_timeout, int, S_IRUGO | S_IWUSR); 109MODULE_PARM_DESC(rport_del_timeout, "Rport delete timeout, default=90 secs, " 110 "Range[>0]"); 111module_param(bfa_lun_queue_depth, int, S_IRUGO | S_IWUSR); 112MODULE_PARM_DESC(bfa_lun_queue_depth, "Lun queue depth, default=32, Range[>0]"); 113module_param(bfa_io_max_sge, int, S_IRUGO | S_IWUSR); 114MODULE_PARM_DESC(bfa_io_max_sge, "Max io scatter/gather elements, default=255"); 115module_param(bfa_log_level, int, S_IRUGO | S_IWUSR); 116MODULE_PARM_DESC(bfa_log_level, "Driver log level, default=3, " 117 "Range[Critical:1|Error:2|Warning:3|Info:4]"); 118module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR); 119MODULE_PARM_DESC(ioc_auto_recover, "IOC auto recovery, default=1, " 120 "Range[off:0|on:1]"); 121module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR); 122MODULE_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]"); 125module_param(msix_disable_cb, int, S_IRUGO | S_IWUSR); 126MODULE_PARM_DESC(msix_disable_cb, "Disable Message Signaled Interrupts for QLogic-415/425/815/825 cards, default=0 Range[false:0|true:1]"); 127module_param(msix_disable_ct, int, S_IRUGO | S_IWUSR); 128MODULE_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]"); 129module_param(fdmi_enable, int, S_IRUGO | S_IWUSR); 130MODULE_PARM_DESC(fdmi_enable, "Enables fdmi registration, default=1, " 131 "Range[false:0|true:1]"); 132module_param(pcie_max_read_reqsz, int, S_IRUGO | S_IWUSR); 133MODULE_PARM_DESC(pcie_max_read_reqsz, "PCIe max read request size, default=0 " 134 "(use system setting), Range[128|256|512|1024|2048|4096]"); 135module_param(bfa_debugfs_enable, int, S_IRUGO | S_IWUSR); 136MODULE_PARM_DESC(bfa_debugfs_enable, "Enables debugfs feature, default=1," 137 " Range[false:0|true:1]"); 138module_param(max_xfer_size, int, S_IRUGO | S_IWUSR); 139MODULE_PARM_DESC(max_xfer_size, "default=32MB," 140 " Range[64k|128k|256k|512k|1024k|2048k]"); 141module_param(max_rport_logins, int, S_IRUGO | S_IWUSR); 142MODULE_PARM_DESC(max_rport_logins, "Max number of logins to initiator and target rports on a port (physical/logical), default=1024"); 143 144static void 145bfad_sm_uninit(struct bfad_s *bfad, enum bfad_sm_event event); 146static void 147bfad_sm_created(struct bfad_s *bfad, enum bfad_sm_event event); 148static void 149bfad_sm_initializing(struct bfad_s *bfad, enum bfad_sm_event event); 150static void 151bfad_sm_operational(struct bfad_s *bfad, enum bfad_sm_event event); 152static void 153bfad_sm_stopping(struct bfad_s *bfad, enum bfad_sm_event event); 154static void 155bfad_sm_failed(struct bfad_s *bfad, enum bfad_sm_event event); 156static void 157bfad_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 */ 162static void 163bfad_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 */ 192static void 193bfad_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 268static void 269bfad_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 307static void 308bfad_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 338static void 339bfad_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 354static void 355bfad_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 370static void 371bfad_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 */ 394void 395bfad_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 */ 406void 407bfa_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 */ 431struct bfad_port_s * 432bfa_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 */ 470bfa_status_t 471bfa_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 484ext: 485 return rc; 486} 487 488/* 489 * FCS PBC VPORT Create 490 */ 491void 492bfa_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 522void 523bfad_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 550void 551bfad_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 584bfa_status_t 585bfad_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 } 627ext: 628 return rc; 629} 630 631/* 632 * Create a vport under a vf. 633 */ 634bfa_status_t 635bfad_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 672ext_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); 679ext_free_vport: 680 kfree(vport); 681ext: 682 return rc; 683} 684 685void 686bfad_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 710void 711bfad_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 719int 720bfad_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 = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 737 738 if (rc) { 739 rc = -ENODEV; 740 printk(KERN_ERR "dma_set_mask_and_coherent fail %p\n", pdev); 741 goto out_release_region; 742 } 743 744 /* Enable PCIE Advanced Error Recovery (AER) if kernel supports */ 745 pci_enable_pcie_error_reporting(pdev); 746 747 bfad->pci_bar0_kva = pci_iomap(pdev, 0, pci_resource_len(pdev, 0)); 748 bfad->pci_bar2_kva = pci_iomap(pdev, 2, pci_resource_len(pdev, 2)); 749 750 if (bfad->pci_bar0_kva == NULL) { 751 printk(KERN_ERR "Fail to map bar0\n"); 752 rc = -ENODEV; 753 goto out_release_region; 754 } 755 756 bfad->hal_pcidev.pci_slot = PCI_SLOT(pdev->devfn); 757 bfad->hal_pcidev.pci_func = PCI_FUNC(pdev->devfn); 758 bfad->hal_pcidev.pci_bar_kva = bfad->pci_bar0_kva; 759 bfad->hal_pcidev.device_id = pdev->device; 760 bfad->hal_pcidev.ssid = pdev->subsystem_device; 761 bfad->pci_name = pci_name(pdev); 762 763 bfad->pci_attr.vendor_id = pdev->vendor; 764 bfad->pci_attr.device_id = pdev->device; 765 bfad->pci_attr.ssid = pdev->subsystem_device; 766 bfad->pci_attr.ssvid = pdev->subsystem_vendor; 767 bfad->pci_attr.pcifn = PCI_FUNC(pdev->devfn); 768 769 bfad->pcidev = pdev; 770 771 /* Adjust PCIe Maximum Read Request Size */ 772 if (pci_is_pcie(pdev) && pcie_max_read_reqsz) { 773 if (pcie_max_read_reqsz >= 128 && 774 pcie_max_read_reqsz <= 4096 && 775 is_power_of_2(pcie_max_read_reqsz)) { 776 int max_rq = pcie_get_readrq(pdev); 777 printk(KERN_WARNING "BFA[%s]: " 778 "pcie_max_read_request_size is %d, " 779 "reset to %d\n", bfad->pci_name, max_rq, 780 pcie_max_read_reqsz); 781 pcie_set_readrq(pdev, pcie_max_read_reqsz); 782 } else { 783 printk(KERN_WARNING "BFA[%s]: invalid " 784 "pcie_max_read_request_size %d ignored\n", 785 bfad->pci_name, pcie_max_read_reqsz); 786 } 787 } 788 789 pci_save_state(pdev); 790 791 return 0; 792 793out_release_region: 794 pci_release_regions(pdev); 795out_disable_device: 796 pci_disable_device(pdev); 797out: 798 return rc; 799} 800 801void 802bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad) 803{ 804 pci_iounmap(pdev, bfad->pci_bar0_kva); 805 pci_iounmap(pdev, bfad->pci_bar2_kva); 806 pci_release_regions(pdev); 807 /* Disable PCIE Advanced Error Recovery (AER) */ 808 pci_disable_pcie_error_reporting(pdev); 809 pci_disable_device(pdev); 810} 811 812bfa_status_t 813bfad_drv_init(struct bfad_s *bfad) 814{ 815 bfa_status_t rc; 816 unsigned long flags; 817 818 bfad->cfg_data.rport_del_timeout = rport_del_timeout; 819 bfad->cfg_data.lun_queue_depth = bfa_lun_queue_depth; 820 bfad->cfg_data.io_max_sge = bfa_io_max_sge; 821 bfad->cfg_data.binding_method = FCP_PWWN_BINDING; 822 823 rc = bfad_hal_mem_alloc(bfad); 824 if (rc != BFA_STATUS_OK) { 825 printk(KERN_WARNING "bfad%d bfad_hal_mem_alloc failure\n", 826 bfad->inst_no); 827 printk(KERN_WARNING 828 "Not enough memory to attach all QLogic BR-series HBA ports. System may need more memory.\n"); 829 return BFA_STATUS_FAILED; 830 } 831 832 bfad->bfa.trcmod = bfad->trcmod; 833 bfad->bfa.plog = &bfad->plog_buf; 834 bfa_plog_init(&bfad->plog_buf); 835 bfa_plog_str(&bfad->plog_buf, BFA_PL_MID_DRVR, BFA_PL_EID_DRIVER_START, 836 0, "Driver Attach"); 837 838 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, &bfad->meminfo, 839 &bfad->hal_pcidev); 840 841 /* FCS INIT */ 842 spin_lock_irqsave(&bfad->bfad_lock, flags); 843 bfad->bfa_fcs.trcmod = bfad->trcmod; 844 bfa_fcs_attach(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE); 845 bfad->bfa_fcs.fdmi_enabled = fdmi_enable; 846 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 847 848 bfad->bfad_flags |= BFAD_DRV_INIT_DONE; 849 850 return BFA_STATUS_OK; 851} 852 853void 854bfad_drv_uninit(struct bfad_s *bfad) 855{ 856 unsigned long flags; 857 858 spin_lock_irqsave(&bfad->bfad_lock, flags); 859 init_completion(&bfad->comp); 860 bfa_iocfc_stop(&bfad->bfa); 861 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 862 wait_for_completion(&bfad->comp); 863 864 del_timer_sync(&bfad->hal_tmo); 865 bfa_isr_disable(&bfad->bfa); 866 bfa_detach(&bfad->bfa); 867 bfad_remove_intr(bfad); 868 bfad_hal_mem_release(bfad); 869 870 bfad->bfad_flags &= ~BFAD_DRV_INIT_DONE; 871} 872 873void 874bfad_drv_start(struct bfad_s *bfad) 875{ 876 unsigned long flags; 877 878 spin_lock_irqsave(&bfad->bfad_lock, flags); 879 bfa_iocfc_start(&bfad->bfa); 880 bfa_fcs_pbc_vport_init(&bfad->bfa_fcs); 881 bfa_fcs_fabric_modstart(&bfad->bfa_fcs); 882 bfad->bfad_flags |= BFAD_HAL_START_DONE; 883 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 884 885 if (bfad->im) 886 flush_workqueue(bfad->im->drv_workq); 887} 888 889void 890bfad_fcs_stop(struct bfad_s *bfad) 891{ 892 unsigned long flags; 893 894 spin_lock_irqsave(&bfad->bfad_lock, flags); 895 init_completion(&bfad->comp); 896 bfad->pport.flags |= BFAD_PORT_DELETE; 897 bfa_fcs_exit(&bfad->bfa_fcs); 898 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 899 wait_for_completion(&bfad->comp); 900 901 bfa_sm_send_event(bfad, BFAD_E_FCS_EXIT_COMP); 902} 903 904void 905bfad_stop(struct bfad_s *bfad) 906{ 907 unsigned long flags; 908 909 spin_lock_irqsave(&bfad->bfad_lock, flags); 910 init_completion(&bfad->comp); 911 bfa_iocfc_stop(&bfad->bfa); 912 bfad->bfad_flags &= ~BFAD_HAL_START_DONE; 913 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 914 wait_for_completion(&bfad->comp); 915 916 bfa_sm_send_event(bfad, BFAD_E_EXIT_COMP); 917} 918 919bfa_status_t 920bfad_cfg_pport(struct bfad_s *bfad, enum bfa_lport_role role) 921{ 922 int rc = BFA_STATUS_OK; 923 924 /* Allocate scsi_host for the physical port */ 925 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 926 (role & BFA_LPORT_ROLE_FCP_IM)) { 927 if (bfad->pport.im_port == NULL) { 928 rc = BFA_STATUS_FAILED; 929 goto out; 930 } 931 932 rc = bfad_im_scsi_host_alloc(bfad, bfad->pport.im_port, 933 &bfad->pcidev->dev); 934 if (rc != BFA_STATUS_OK) 935 goto out; 936 937 bfad->pport.roles |= BFA_LPORT_ROLE_FCP_IM; 938 } 939 940 bfad->bfad_flags |= BFAD_CFG_PPORT_DONE; 941 942out: 943 return rc; 944} 945 946void 947bfad_uncfg_pport(struct bfad_s *bfad) 948{ 949 if ((supported_fc4s & BFA_LPORT_ROLE_FCP_IM) && 950 (bfad->pport.roles & BFA_LPORT_ROLE_FCP_IM)) { 951 bfad_im_scsi_host_free(bfad, bfad->pport.im_port); 952 bfad_im_port_clean(bfad->pport.im_port); 953 kfree(bfad->pport.im_port); 954 bfad->pport.roles &= ~BFA_LPORT_ROLE_FCP_IM; 955 } 956 957 bfad->bfad_flags &= ~BFAD_CFG_PPORT_DONE; 958} 959 960bfa_status_t 961bfad_start_ops(struct bfad_s *bfad) { 962 963 int retval; 964 unsigned long flags; 965 struct bfad_vport_s *vport, *vport_new; 966 struct bfa_fcs_driver_info_s driver_info; 967 968 /* Limit min/max. xfer size to [64k-32MB] */ 969 if (max_xfer_size < BFAD_MIN_SECTORS >> 1) 970 max_xfer_size = BFAD_MIN_SECTORS >> 1; 971 if (max_xfer_size > BFAD_MAX_SECTORS >> 1) 972 max_xfer_size = BFAD_MAX_SECTORS >> 1; 973 974 /* Fill the driver_info info to fcs*/ 975 memset(&driver_info, 0, sizeof(driver_info)); 976 strlcpy(driver_info.version, BFAD_DRIVER_VERSION, 977 sizeof(driver_info.version)); 978 if (host_name) 979 strlcpy(driver_info.host_machine_name, host_name, 980 sizeof(driver_info.host_machine_name)); 981 if (os_name) 982 strlcpy(driver_info.host_os_name, os_name, 983 sizeof(driver_info.host_os_name)); 984 if (os_patch) 985 strlcpy(driver_info.host_os_patch, os_patch, 986 sizeof(driver_info.host_os_patch)); 987 988 strlcpy(driver_info.os_device_name, bfad->pci_name, 989 sizeof(driver_info.os_device_name)); 990 991 /* FCS driver info init */ 992 spin_lock_irqsave(&bfad->bfad_lock, flags); 993 bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info); 994 995 if (bfad->bfad_flags & BFAD_CFG_PPORT_DONE) 996 bfa_fcs_update_cfg(&bfad->bfa_fcs); 997 else 998 bfa_fcs_init(&bfad->bfa_fcs); 999 1000 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1001 1002 if (!(bfad->bfad_flags & BFAD_CFG_PPORT_DONE)) { 1003 retval = bfad_cfg_pport(bfad, BFA_LPORT_ROLE_FCP_IM); 1004 if (retval != BFA_STATUS_OK) 1005 return BFA_STATUS_FAILED; 1006 } 1007 1008 /* Setup fc host fixed attribute if the lk supports */ 1009 bfad_fc_host_init(bfad->pport.im_port); 1010 1011 /* BFAD level FC4 IM specific resource allocation */ 1012 retval = bfad_im_probe(bfad); 1013 if (retval != BFA_STATUS_OK) { 1014 printk(KERN_WARNING "bfad_im_probe failed\n"); 1015 if (bfa_sm_cmp_state(bfad, bfad_sm_initializing)) 1016 bfa_sm_set_state(bfad, bfad_sm_failed); 1017 return BFA_STATUS_FAILED; 1018 } else 1019 bfad->bfad_flags |= BFAD_FC4_PROBE_DONE; 1020 1021 bfad_drv_start(bfad); 1022 1023 /* Complete pbc vport create */ 1024 list_for_each_entry_safe(vport, vport_new, &bfad->pbc_vport_list, 1025 list_entry) { 1026 struct fc_vport_identifiers vid; 1027 struct fc_vport *fc_vport; 1028 char pwwn_buf[BFA_STRING_32]; 1029 1030 memset(&vid, 0, sizeof(vid)); 1031 vid.roles = FC_PORT_ROLE_FCP_INITIATOR; 1032 vid.vport_type = FC_PORTTYPE_NPIV; 1033 vid.disable = false; 1034 vid.node_name = wwn_to_u64((u8 *) 1035 (&((vport->fcs_vport).lport.port_cfg.nwwn))); 1036 vid.port_name = wwn_to_u64((u8 *) 1037 (&((vport->fcs_vport).lport.port_cfg.pwwn))); 1038 fc_vport = fc_vport_create(bfad->pport.im_port->shost, 0, &vid); 1039 if (!fc_vport) { 1040 wwn2str(pwwn_buf, vid.port_name); 1041 printk(KERN_WARNING "bfad%d: failed to create pbc vport" 1042 " %s\n", bfad->inst_no, pwwn_buf); 1043 } 1044 list_del(&vport->list_entry); 1045 kfree(vport); 1046 } 1047 1048 /* 1049 * If bfa_linkup_delay is set to -1 default; try to retrive the 1050 * value using the bfad_get_linkup_delay(); else use the 1051 * passed in module param value as the bfa_linkup_delay. 1052 */ 1053 if (bfa_linkup_delay < 0) { 1054 bfa_linkup_delay = bfad_get_linkup_delay(bfad); 1055 bfad_rport_online_wait(bfad); 1056 bfa_linkup_delay = -1; 1057 } else 1058 bfad_rport_online_wait(bfad); 1059 1060 BFA_LOG(KERN_INFO, bfad, bfa_log_level, "bfa device claimed\n"); 1061 1062 return BFA_STATUS_OK; 1063} 1064 1065int 1066bfad_worker(void *ptr) 1067{ 1068 struct bfad_s *bfad = ptr; 1069 unsigned long flags; 1070 1071 if (kthread_should_stop()) 1072 return 0; 1073 1074 /* Send event BFAD_E_INIT_SUCCESS */ 1075 bfa_sm_send_event(bfad, BFAD_E_INIT_SUCCESS); 1076 1077 spin_lock_irqsave(&bfad->bfad_lock, flags); 1078 bfad->bfad_tsk = NULL; 1079 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1080 1081 return 0; 1082} 1083 1084/* 1085 * BFA driver interrupt functions 1086 */ 1087irqreturn_t 1088bfad_intx(int irq, void *dev_id) 1089{ 1090 struct bfad_s *bfad = dev_id; 1091 struct list_head doneq; 1092 unsigned long flags; 1093 bfa_boolean_t rc; 1094 1095 spin_lock_irqsave(&bfad->bfad_lock, flags); 1096 rc = bfa_intx(&bfad->bfa); 1097 if (!rc) { 1098 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1099 return IRQ_NONE; 1100 } 1101 1102 bfa_comp_deq(&bfad->bfa, &doneq); 1103 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1104 1105 if (!list_empty(&doneq)) { 1106 bfa_comp_process(&bfad->bfa, &doneq); 1107 1108 spin_lock_irqsave(&bfad->bfad_lock, flags); 1109 bfa_comp_free(&bfad->bfa, &doneq); 1110 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1111 } 1112 1113 return IRQ_HANDLED; 1114 1115} 1116 1117static irqreturn_t 1118bfad_msix(int irq, void *dev_id) 1119{ 1120 struct bfad_msix_s *vec = dev_id; 1121 struct bfad_s *bfad = vec->bfad; 1122 struct list_head doneq; 1123 unsigned long flags; 1124 1125 spin_lock_irqsave(&bfad->bfad_lock, flags); 1126 1127 bfa_msix(&bfad->bfa, vec->msix.entry); 1128 bfa_comp_deq(&bfad->bfa, &doneq); 1129 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1130 1131 if (!list_empty(&doneq)) { 1132 bfa_comp_process(&bfad->bfa, &doneq); 1133 1134 spin_lock_irqsave(&bfad->bfad_lock, flags); 1135 bfa_comp_free(&bfad->bfa, &doneq); 1136 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1137 } 1138 1139 return IRQ_HANDLED; 1140} 1141 1142/* 1143 * Initialize the MSIX entry table. 1144 */ 1145static void 1146bfad_init_msix_entry(struct bfad_s *bfad, struct msix_entry *msix_entries, 1147 int mask, int max_bit) 1148{ 1149 int i; 1150 int match = 0x00000001; 1151 1152 for (i = 0, bfad->nvec = 0; i < MAX_MSIX_ENTRY; i++) { 1153 if (mask & match) { 1154 bfad->msix_tab[bfad->nvec].msix.entry = i; 1155 bfad->msix_tab[bfad->nvec].bfad = bfad; 1156 msix_entries[bfad->nvec].entry = i; 1157 bfad->nvec++; 1158 } 1159 1160 match <<= 1; 1161 } 1162 1163} 1164 1165int 1166bfad_install_msix_handler(struct bfad_s *bfad) 1167{ 1168 int i, error = 0; 1169 1170 for (i = 0; i < bfad->nvec; i++) { 1171 sprintf(bfad->msix_tab[i].name, "bfa-%s-%s", 1172 bfad->pci_name, 1173 ((bfa_asic_id_cb(bfad->hal_pcidev.device_id)) ? 1174 msix_name_cb[i] : msix_name_ct[i])); 1175 1176 error = request_irq(bfad->msix_tab[i].msix.vector, 1177 (irq_handler_t) bfad_msix, 0, 1178 bfad->msix_tab[i].name, &bfad->msix_tab[i]); 1179 bfa_trc(bfad, i); 1180 bfa_trc(bfad, bfad->msix_tab[i].msix.vector); 1181 if (error) { 1182 int j; 1183 1184 for (j = 0; j < i; j++) 1185 free_irq(bfad->msix_tab[j].msix.vector, 1186 &bfad->msix_tab[j]); 1187 1188 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1189 pci_disable_msix(bfad->pcidev); 1190 1191 return 1; 1192 } 1193 } 1194 1195 return 0; 1196} 1197 1198/* 1199 * Setup MSIX based interrupt. 1200 */ 1201int 1202bfad_setup_intr(struct bfad_s *bfad) 1203{ 1204 int error; 1205 u32 mask = 0, i, num_bit = 0, max_bit = 0; 1206 struct msix_entry msix_entries[MAX_MSIX_ENTRY]; 1207 struct pci_dev *pdev = bfad->pcidev; 1208 u16 reg; 1209 1210 /* Call BFA to get the msix map for this PCI function. */ 1211 bfa_msix_getvecs(&bfad->bfa, &mask, &num_bit, &max_bit); 1212 1213 /* Set up the msix entry table */ 1214 bfad_init_msix_entry(bfad, msix_entries, mask, max_bit); 1215 1216 if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) || 1217 (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) { 1218 1219 error = pci_enable_msix_exact(bfad->pcidev, 1220 msix_entries, bfad->nvec); 1221 /* In CT1 & CT2, try to allocate just one vector */ 1222 if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) { 1223 printk(KERN_WARNING "bfa %s: trying one msix " 1224 "vector failed to allocate %d[%d]\n", 1225 bfad->pci_name, bfad->nvec, error); 1226 bfad->nvec = 1; 1227 error = pci_enable_msix_exact(bfad->pcidev, 1228 msix_entries, 1); 1229 } 1230 1231 if (error) { 1232 printk(KERN_WARNING "bfad%d: " 1233 "pci_enable_msix_exact failed (%d), " 1234 "use line based.\n", 1235 bfad->inst_no, error); 1236 goto line_based; 1237 } 1238 1239 /* Disable INTX in MSI-X mode */ 1240 pci_read_config_word(pdev, PCI_COMMAND, ®); 1241 1242 if (!(reg & PCI_COMMAND_INTX_DISABLE)) 1243 pci_write_config_word(pdev, PCI_COMMAND, 1244 reg | PCI_COMMAND_INTX_DISABLE); 1245 1246 /* Save the vectors */ 1247 for (i = 0; i < bfad->nvec; i++) { 1248 bfa_trc(bfad, msix_entries[i].vector); 1249 bfad->msix_tab[i].msix.vector = msix_entries[i].vector; 1250 } 1251 1252 bfa_msix_init(&bfad->bfa, bfad->nvec); 1253 1254 bfad->bfad_flags |= BFAD_MSIX_ON; 1255 1256 return 0; 1257 } 1258 1259line_based: 1260 error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx, 1261 BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad); 1262 if (error) 1263 return error; 1264 1265 bfad->bfad_flags |= BFAD_INTX_ON; 1266 1267 return 0; 1268} 1269 1270void 1271bfad_remove_intr(struct bfad_s *bfad) 1272{ 1273 int i; 1274 1275 if (bfad->bfad_flags & BFAD_MSIX_ON) { 1276 for (i = 0; i < bfad->nvec; i++) 1277 free_irq(bfad->msix_tab[i].msix.vector, 1278 &bfad->msix_tab[i]); 1279 1280 pci_disable_msix(bfad->pcidev); 1281 bfad->bfad_flags &= ~BFAD_MSIX_ON; 1282 } else if (bfad->bfad_flags & BFAD_INTX_ON) { 1283 free_irq(bfad->pcidev->irq, bfad); 1284 } 1285} 1286 1287/* 1288 * PCI probe entry. 1289 */ 1290int 1291bfad_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) 1292{ 1293 struct bfad_s *bfad; 1294 int error = -ENODEV, retval, i; 1295 1296 /* For single port cards - only claim function 0 */ 1297 if ((pdev->device == BFA_PCI_DEVICE_ID_FC_8G1P) && 1298 (PCI_FUNC(pdev->devfn) != 0)) 1299 return -ENODEV; 1300 1301 bfad = kzalloc(sizeof(struct bfad_s), GFP_KERNEL); 1302 if (!bfad) { 1303 error = -ENOMEM; 1304 goto out; 1305 } 1306 1307 bfad->trcmod = kzalloc(sizeof(struct bfa_trc_mod_s), GFP_KERNEL); 1308 if (!bfad->trcmod) { 1309 printk(KERN_WARNING "Error alloc trace buffer!\n"); 1310 error = -ENOMEM; 1311 goto out_alloc_trace_failure; 1312 } 1313 1314 /* TRACE INIT */ 1315 bfa_trc_init(bfad->trcmod); 1316 bfa_trc(bfad, bfad_inst); 1317 1318 /* AEN INIT */ 1319 INIT_LIST_HEAD(&bfad->free_aen_q); 1320 INIT_LIST_HEAD(&bfad->active_aen_q); 1321 for (i = 0; i < BFA_AEN_MAX_ENTRY; i++) 1322 list_add_tail(&bfad->aen_list[i].qe, &bfad->free_aen_q); 1323 1324 if (!(bfad_load_fwimg(pdev))) { 1325 kfree(bfad->trcmod); 1326 goto out_alloc_trace_failure; 1327 } 1328 1329 retval = bfad_pci_init(pdev, bfad); 1330 if (retval) { 1331 printk(KERN_WARNING "bfad_pci_init failure!\n"); 1332 error = retval; 1333 goto out_pci_init_failure; 1334 } 1335 1336 mutex_lock(&bfad_mutex); 1337 bfad->inst_no = bfad_inst++; 1338 list_add_tail(&bfad->list_entry, &bfad_list); 1339 mutex_unlock(&bfad_mutex); 1340 1341 /* Initializing the state machine: State set to uninit */ 1342 bfa_sm_set_state(bfad, bfad_sm_uninit); 1343 1344 spin_lock_init(&bfad->bfad_lock); 1345 spin_lock_init(&bfad->bfad_aen_spinlock); 1346 1347 pci_set_drvdata(pdev, bfad); 1348 1349 bfad->ref_count = 0; 1350 bfad->pport.bfad = bfad; 1351 INIT_LIST_HEAD(&bfad->pbc_vport_list); 1352 INIT_LIST_HEAD(&bfad->vport_list); 1353 1354 /* Setup the debugfs node for this bfad */ 1355 if (bfa_debugfs_enable) 1356 bfad_debugfs_init(&bfad->pport); 1357 1358 retval = bfad_drv_init(bfad); 1359 if (retval != BFA_STATUS_OK) 1360 goto out_drv_init_failure; 1361 1362 bfa_sm_send_event(bfad, BFAD_E_CREATE); 1363 1364 if (bfa_sm_cmp_state(bfad, bfad_sm_uninit)) 1365 goto out_bfad_sm_failure; 1366 1367 return 0; 1368 1369out_bfad_sm_failure: 1370 bfad_hal_mem_release(bfad); 1371out_drv_init_failure: 1372 /* Remove the debugfs node for this bfad */ 1373 kfree(bfad->regdata); 1374 bfad_debugfs_exit(&bfad->pport); 1375 mutex_lock(&bfad_mutex); 1376 bfad_inst--; 1377 list_del(&bfad->list_entry); 1378 mutex_unlock(&bfad_mutex); 1379 bfad_pci_uninit(pdev, bfad); 1380out_pci_init_failure: 1381 kfree(bfad->trcmod); 1382out_alloc_trace_failure: 1383 kfree(bfad); 1384out: 1385 return error; 1386} 1387 1388/* 1389 * PCI remove entry. 1390 */ 1391void 1392bfad_pci_remove(struct pci_dev *pdev) 1393{ 1394 struct bfad_s *bfad = pci_get_drvdata(pdev); 1395 unsigned long flags; 1396 1397 bfa_trc(bfad, bfad->inst_no); 1398 1399 spin_lock_irqsave(&bfad->bfad_lock, flags); 1400 if (bfad->bfad_tsk != NULL) { 1401 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1402 kthread_stop(bfad->bfad_tsk); 1403 } else { 1404 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1405 } 1406 1407 /* Send Event BFAD_E_STOP */ 1408 bfa_sm_send_event(bfad, BFAD_E_STOP); 1409 1410 /* Driver detach and dealloc mem */ 1411 spin_lock_irqsave(&bfad->bfad_lock, flags); 1412 bfa_detach(&bfad->bfa); 1413 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1414 bfad_hal_mem_release(bfad); 1415 1416 /* Remove the debugfs node for this bfad */ 1417 kfree(bfad->regdata); 1418 bfad_debugfs_exit(&bfad->pport); 1419 1420 /* Cleaning the BFAD instance */ 1421 mutex_lock(&bfad_mutex); 1422 bfad_inst--; 1423 list_del(&bfad->list_entry); 1424 mutex_unlock(&bfad_mutex); 1425 bfad_pci_uninit(pdev, bfad); 1426 1427 kfree(bfad->trcmod); 1428 kfree(bfad); 1429} 1430 1431/* 1432 * PCI Error Recovery entry, error detected. 1433 */ 1434static pci_ers_result_t 1435bfad_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 1436{ 1437 struct bfad_s *bfad = pci_get_drvdata(pdev); 1438 unsigned long flags; 1439 pci_ers_result_t ret = PCI_ERS_RESULT_NONE; 1440 1441 dev_printk(KERN_ERR, &pdev->dev, 1442 "error detected state: %d - flags: 0x%x\n", 1443 state, bfad->bfad_flags); 1444 1445 switch (state) { 1446 case pci_channel_io_normal: /* non-fatal error */ 1447 spin_lock_irqsave(&bfad->bfad_lock, flags); 1448 bfad->bfad_flags &= ~BFAD_EEH_BUSY; 1449 /* Suspend/fail all bfa operations */ 1450 bfa_ioc_suspend(&bfad->bfa.ioc); 1451 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1452 del_timer_sync(&bfad->hal_tmo); 1453 ret = PCI_ERS_RESULT_CAN_RECOVER; 1454 break; 1455 case pci_channel_io_frozen: /* fatal error */ 1456 init_completion(&bfad->comp); 1457 spin_lock_irqsave(&bfad->bfad_lock, flags); 1458 bfad->bfad_flags |= BFAD_EEH_BUSY; 1459 /* Suspend/fail all bfa operations */ 1460 bfa_ioc_suspend(&bfad->bfa.ioc); 1461 bfa_fcs_stop(&bfad->bfa_fcs); 1462 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1463 wait_for_completion(&bfad->comp); 1464 1465 bfad_remove_intr(bfad); 1466 del_timer_sync(&bfad->hal_tmo); 1467 pci_disable_device(pdev); 1468 ret = PCI_ERS_RESULT_NEED_RESET; 1469 break; 1470 case pci_channel_io_perm_failure: /* PCI Card is DEAD */ 1471 spin_lock_irqsave(&bfad->bfad_lock, flags); 1472 bfad->bfad_flags |= BFAD_EEH_BUSY | 1473 BFAD_EEH_PCI_CHANNEL_IO_PERM_FAILURE; 1474 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1475 1476 /* If the error_detected handler is called with the reason 1477 * pci_channel_io_perm_failure - it will subsequently call 1478 * pci_remove() entry point to remove the pci device from the 1479 * system - So defer the cleanup to pci_remove(); cleaning up 1480 * here causes inconsistent state during pci_remove(). 1481 */ 1482 ret = PCI_ERS_RESULT_DISCONNECT; 1483 break; 1484 default: 1485 WARN_ON(1); 1486 } 1487 1488 return ret; 1489} 1490 1491static int restart_bfa(struct bfad_s *bfad) 1492{ 1493 unsigned long flags; 1494 struct pci_dev *pdev = bfad->pcidev; 1495 1496 bfa_attach(&bfad->bfa, bfad, &bfad->ioc_cfg, 1497 &bfad->meminfo, &bfad->hal_pcidev); 1498 1499 /* Enable Interrupt and wait bfa_init completion */ 1500 if (bfad_setup_intr(bfad)) { 1501 dev_printk(KERN_WARNING, &pdev->dev, 1502 "%s: bfad_setup_intr failed\n", bfad->pci_name); 1503 bfa_sm_send_event(bfad, BFAD_E_INIT_FAILED); 1504 return -1; 1505 } 1506 1507 init_completion(&bfad->comp); 1508 spin_lock_irqsave(&bfad->bfad_lock, flags); 1509 bfa_iocfc_init(&bfad->bfa); 1510 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1511 1512 /* Set up interrupt handler for each vectors */ 1513 if ((bfad->bfad_flags & BFAD_MSIX_ON) && 1514 bfad_install_msix_handler(bfad)) 1515 dev_printk(KERN_WARNING, &pdev->dev, 1516 "%s: install_msix failed.\n", bfad->pci_name); 1517 1518 bfad_init_timer(bfad); 1519 wait_for_completion(&bfad->comp); 1520 bfad_drv_start(bfad); 1521 1522 return 0; 1523} 1524 1525/* 1526 * PCI Error Recovery entry, re-initialize the chip. 1527 */ 1528static pci_ers_result_t 1529bfad_pci_slot_reset(struct pci_dev *pdev) 1530{ 1531 struct bfad_s *bfad = pci_get_drvdata(pdev); 1532 u8 byte; 1533 int rc; 1534 1535 dev_printk(KERN_ERR, &pdev->dev, 1536 "bfad_pci_slot_reset flags: 0x%x\n", bfad->bfad_flags); 1537 1538 if (pci_enable_device(pdev)) { 1539 dev_printk(KERN_ERR, &pdev->dev, "Cannot re-enable " 1540 "PCI device after reset.\n"); 1541 return PCI_ERS_RESULT_DISCONNECT; 1542 } 1543 1544 pci_restore_state(pdev); 1545 1546 /* 1547 * Read some byte (e.g. DMA max. payload size which can't 1548 * be 0xff any time) to make sure - we did not hit another PCI error 1549 * in the middle of recovery. If we did, then declare permanent failure. 1550 */ 1551 pci_read_config_byte(pdev, 0x68, &byte); 1552 if (byte == 0xff) { 1553 dev_printk(KERN_ERR, &pdev->dev, 1554 "slot_reset failed ... got another PCI error !\n"); 1555 goto out_disable_device; 1556 } 1557 1558 pci_save_state(pdev); 1559 pci_set_master(pdev); 1560 1561 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64)); 1562 if (rc) 1563 rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, 1564 DMA_BIT_MASK(32)); 1565 if (rc) 1566 goto out_disable_device; 1567 1568 if (restart_bfa(bfad) == -1) 1569 goto out_disable_device; 1570 1571 pci_enable_pcie_error_reporting(pdev); 1572 dev_printk(KERN_WARNING, &pdev->dev, 1573 "slot_reset completed flags: 0x%x!\n", bfad->bfad_flags); 1574 1575 return PCI_ERS_RESULT_RECOVERED; 1576 1577out_disable_device: 1578 pci_disable_device(pdev); 1579 return PCI_ERS_RESULT_DISCONNECT; 1580} 1581 1582static pci_ers_result_t 1583bfad_pci_mmio_enabled(struct pci_dev *pdev) 1584{ 1585 unsigned long flags; 1586 struct bfad_s *bfad = pci_get_drvdata(pdev); 1587 1588 dev_printk(KERN_INFO, &pdev->dev, "mmio_enabled\n"); 1589 1590 /* Fetch FW diagnostic information */ 1591 bfa_ioc_debug_save_ftrc(&bfad->bfa.ioc); 1592 1593 /* Cancel all pending IOs */ 1594 spin_lock_irqsave(&bfad->bfad_lock, flags); 1595 init_completion(&bfad->comp); 1596 bfa_fcs_stop(&bfad->bfa_fcs); 1597 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1598 wait_for_completion(&bfad->comp); 1599 1600 bfad_remove_intr(bfad); 1601 del_timer_sync(&bfad->hal_tmo); 1602 pci_disable_device(pdev); 1603 1604 return PCI_ERS_RESULT_NEED_RESET; 1605} 1606 1607static void 1608bfad_pci_resume(struct pci_dev *pdev) 1609{ 1610 unsigned long flags; 1611 struct bfad_s *bfad = pci_get_drvdata(pdev); 1612 1613 dev_printk(KERN_WARNING, &pdev->dev, "resume\n"); 1614 1615 /* wait until the link is online */ 1616 bfad_rport_online_wait(bfad); 1617 1618 spin_lock_irqsave(&bfad->bfad_lock, flags); 1619 bfad->bfad_flags &= ~BFAD_EEH_BUSY; 1620 spin_unlock_irqrestore(&bfad->bfad_lock, flags); 1621} 1622 1623struct pci_device_id bfad_id_table[] = { 1624 { 1625 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1626 .device = BFA_PCI_DEVICE_ID_FC_8G2P, 1627 .subvendor = PCI_ANY_ID, 1628 .subdevice = PCI_ANY_ID, 1629 }, 1630 { 1631 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1632 .device = BFA_PCI_DEVICE_ID_FC_8G1P, 1633 .subvendor = PCI_ANY_ID, 1634 .subdevice = PCI_ANY_ID, 1635 }, 1636 { 1637 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1638 .device = BFA_PCI_DEVICE_ID_CT, 1639 .subvendor = PCI_ANY_ID, 1640 .subdevice = PCI_ANY_ID, 1641 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1642 .class_mask = ~0, 1643 }, 1644 { 1645 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1646 .device = BFA_PCI_DEVICE_ID_CT_FC, 1647 .subvendor = PCI_ANY_ID, 1648 .subdevice = PCI_ANY_ID, 1649 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1650 .class_mask = ~0, 1651 }, 1652 { 1653 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1654 .device = BFA_PCI_DEVICE_ID_CT2, 1655 .subvendor = PCI_ANY_ID, 1656 .subdevice = PCI_ANY_ID, 1657 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1658 .class_mask = ~0, 1659 }, 1660 1661 { 1662 .vendor = BFA_PCI_VENDOR_ID_BROCADE, 1663 .device = BFA_PCI_DEVICE_ID_CT2_QUAD, 1664 .subvendor = PCI_ANY_ID, 1665 .subdevice = PCI_ANY_ID, 1666 .class = (PCI_CLASS_SERIAL_FIBER << 8), 1667 .class_mask = ~0, 1668 }, 1669 {0, 0}, 1670}; 1671 1672MODULE_DEVICE_TABLE(pci, bfad_id_table); 1673 1674/* 1675 * PCI error recovery handlers. 1676 */ 1677static struct pci_error_handlers bfad_err_handler = { 1678 .error_detected = bfad_pci_error_detected, 1679 .slot_reset = bfad_pci_slot_reset, 1680 .mmio_enabled = bfad_pci_mmio_enabled, 1681 .resume = bfad_pci_resume, 1682}; 1683 1684static struct pci_driver bfad_pci_driver = { 1685 .name = BFAD_DRIVER_NAME, 1686 .id_table = bfad_id_table, 1687 .probe = bfad_pci_probe, 1688 .remove = bfad_pci_remove, 1689 .err_handler = &bfad_err_handler, 1690}; 1691 1692/* 1693 * Driver module init. 1694 */ 1695static int __init 1696bfad_init(void) 1697{ 1698 int error = 0; 1699 1700 pr_info("QLogic BR-series BFA FC/FCOE SCSI driver - version: %s\n", 1701 BFAD_DRIVER_VERSION); 1702 1703 if (num_sgpgs > 0) 1704 num_sgpgs_parm = num_sgpgs; 1705 1706 error = bfad_im_module_init(); 1707 if (error) { 1708 error = -ENOMEM; 1709 printk(KERN_WARNING "bfad_im_module_init failure\n"); 1710 goto ext; 1711 } 1712 1713 if (strcmp(FCPI_NAME, " fcpim") == 0) 1714 supported_fc4s |= BFA_LPORT_ROLE_FCP_IM; 1715 1716 bfa_auto_recover = ioc_auto_recover; 1717 bfa_fcs_rport_set_del_timeout(rport_del_timeout); 1718 bfa_fcs_rport_set_max_logins(max_rport_logins); 1719 1720 error = pci_register_driver(&bfad_pci_driver); 1721 if (error) { 1722 printk(KERN_WARNING "pci_register_driver failure\n"); 1723 goto ext; 1724 } 1725 1726 return 0; 1727 1728ext: 1729 bfad_im_module_exit(); 1730 return error; 1731} 1732 1733/* 1734 * Driver module exit. 1735 */ 1736static void __exit 1737bfad_exit(void) 1738{ 1739 pci_unregister_driver(&bfad_pci_driver); 1740 bfad_im_module_exit(); 1741 bfad_free_fwimg(); 1742} 1743 1744/* Firmware handling */ 1745static void 1746bfad_read_firmware(struct pci_dev *pdev, u32 **bfi_image, 1747 u32 *bfi_image_size, char *fw_name) 1748{ 1749 const struct firmware *fw; 1750 1751 if (request_firmware(&fw, fw_name, &pdev->dev)) { 1752 printk(KERN_ALERT "Can't locate firmware %s\n", fw_name); 1753 *bfi_image = NULL; 1754 goto out; 1755 } 1756 1757 *bfi_image = vmalloc(fw->size); 1758 if (NULL == *bfi_image) { 1759 printk(KERN_ALERT "Fail to allocate buffer for fw image " 1760 "size=%x!\n", (u32) fw->size); 1761 goto out; 1762 } 1763 1764 memcpy(*bfi_image, fw->data, fw->size); 1765 *bfi_image_size = fw->size/sizeof(u32); 1766out: 1767 release_firmware(fw); 1768} 1769 1770static u32 * 1771bfad_load_fwimg(struct pci_dev *pdev) 1772{ 1773 if (bfa_asic_id_ct2(pdev->device)) { 1774 if (bfi_image_ct2_size == 0) 1775 bfad_read_firmware(pdev, &bfi_image_ct2, 1776 &bfi_image_ct2_size, BFAD_FW_FILE_CT2); 1777 return bfi_image_ct2; 1778 } else if (bfa_asic_id_ct(pdev->device)) { 1779 if (bfi_image_ct_size == 0) 1780 bfad_read_firmware(pdev, &bfi_image_ct, 1781 &bfi_image_ct_size, BFAD_FW_FILE_CT); 1782 return bfi_image_ct; 1783 } else if (bfa_asic_id_cb(pdev->device)) { 1784 if (bfi_image_cb_size == 0) 1785 bfad_read_firmware(pdev, &bfi_image_cb, 1786 &bfi_image_cb_size, BFAD_FW_FILE_CB); 1787 return bfi_image_cb; 1788 } 1789 1790 return NULL; 1791} 1792 1793static void 1794bfad_free_fwimg(void) 1795{ 1796 if (bfi_image_ct2_size && bfi_image_ct2) 1797 vfree(bfi_image_ct2); 1798 if (bfi_image_ct_size && bfi_image_ct) 1799 vfree(bfi_image_ct); 1800 if (bfi_image_cb_size && bfi_image_cb) 1801 vfree(bfi_image_cb); 1802} 1803 1804module_init(bfad_init); 1805module_exit(bfad_exit); 1806MODULE_LICENSE("GPL"); 1807MODULE_DESCRIPTION("QLogic BR-series Fibre Channel HBA Driver" BFAD_PROTO_NAME); 1808MODULE_AUTHOR("QLogic Corporation"); 1809MODULE_VERSION(BFAD_DRIVER_VERSION); 1810