1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_gbl.h" 9 #include "qla_target.h" 10 11 #include <linux/moduleparam.h> 12 #include <linux/vmalloc.h> 13 #include <linux/slab.h> 14 #include <linux/list.h> 15 16 #include <scsi/scsi_tcq.h> 17 #include <scsi/scsicam.h> 18 #include <linux/delay.h> 19 20 void 21 qla2x00_vp_stop_timer(scsi_qla_host_t *vha) 22 { 23 if (vha->vp_idx && vha->timer_active) { 24 del_timer_sync(&vha->timer); 25 vha->timer_active = 0; 26 } 27 } 28 29 static uint32_t 30 qla24xx_allocate_vp_id(scsi_qla_host_t *vha) 31 { 32 uint32_t vp_id; 33 struct qla_hw_data *ha = vha->hw; 34 unsigned long flags; 35 36 /* Find an empty slot and assign an vp_id */ 37 mutex_lock(&ha->vport_lock); 38 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1); 39 if (vp_id > ha->max_npiv_vports) { 40 ql_dbg(ql_dbg_vport, vha, 0xa000, 41 "vp_id %d is bigger than max-supported %d.\n", 42 vp_id, ha->max_npiv_vports); 43 mutex_unlock(&ha->vport_lock); 44 return vp_id; 45 } 46 47 set_bit(vp_id, ha->vp_idx_map); 48 ha->num_vhosts++; 49 vha->vp_idx = vp_id; 50 51 spin_lock_irqsave(&ha->vport_slock, flags); 52 list_add_tail(&vha->list, &ha->vp_list); 53 spin_unlock_irqrestore(&ha->vport_slock, flags); 54 55 spin_lock_irqsave(&ha->hardware_lock, flags); 56 qlt_update_vp_map(vha, SET_VP_IDX); 57 spin_unlock_irqrestore(&ha->hardware_lock, flags); 58 59 mutex_unlock(&ha->vport_lock); 60 return vp_id; 61 } 62 63 void 64 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) 65 { 66 uint16_t vp_id; 67 struct qla_hw_data *ha = vha->hw; 68 unsigned long flags = 0; 69 u8 i; 70 71 mutex_lock(&ha->vport_lock); 72 /* 73 * Wait for all pending activities to finish before removing vport from 74 * the list. 75 * Lock needs to be held for safe removal from the list (it 76 * ensures no active vp_list traversal while the vport is removed 77 * from the queue) 78 */ 79 for (i = 0; i < 10; i++) { 80 if (wait_event_timeout(vha->vref_waitq, 81 !atomic_read(&vha->vref_count), HZ) > 0) 82 break; 83 } 84 85 spin_lock_irqsave(&ha->vport_slock, flags); 86 if (atomic_read(&vha->vref_count)) { 87 ql_dbg(ql_dbg_vport, vha, 0xfffa, 88 "vha->vref_count=%u timeout\n", vha->vref_count.counter); 89 vha->vref_count = (atomic_t)ATOMIC_INIT(0); 90 } 91 list_del(&vha->list); 92 qlt_update_vp_map(vha, RESET_VP_IDX); 93 spin_unlock_irqrestore(&ha->vport_slock, flags); 94 95 vp_id = vha->vp_idx; 96 ha->num_vhosts--; 97 clear_bit(vp_id, ha->vp_idx_map); 98 99 mutex_unlock(&ha->vport_lock); 100 } 101 102 static scsi_qla_host_t * 103 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) 104 { 105 scsi_qla_host_t *vha; 106 struct scsi_qla_host *tvha; 107 unsigned long flags; 108 109 spin_lock_irqsave(&ha->vport_slock, flags); 110 /* Locate matching device in database. */ 111 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 112 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) { 113 spin_unlock_irqrestore(&ha->vport_slock, flags); 114 return vha; 115 } 116 } 117 spin_unlock_irqrestore(&ha->vport_slock, flags); 118 return NULL; 119 } 120 121 /* 122 * qla2x00_mark_vp_devices_dead 123 * Updates fcport state when device goes offline. 124 * 125 * Input: 126 * ha = adapter block pointer. 127 * fcport = port structure pointer. 128 * 129 * Return: 130 * None. 131 * 132 * Context: 133 */ 134 static void 135 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) 136 { 137 /* 138 * !!! NOTE !!! 139 * This function, if called in contexts other than vp create, disable 140 * or delete, please make sure this is synchronized with the 141 * delete thread. 142 */ 143 fc_port_t *fcport; 144 145 list_for_each_entry(fcport, &vha->vp_fcports, list) { 146 ql_dbg(ql_dbg_vport, vha, 0xa001, 147 "Marking port dead, loop_id=0x%04x : %x.\n", 148 fcport->loop_id, fcport->vha->vp_idx); 149 150 qla2x00_mark_device_lost(vha, fcport, 0); 151 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED); 152 } 153 } 154 155 int 156 qla24xx_disable_vp(scsi_qla_host_t *vha) 157 { 158 unsigned long flags; 159 int ret = QLA_SUCCESS; 160 fc_port_t *fcport; 161 162 if (vha->hw->flags.fw_started) 163 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 164 165 atomic_set(&vha->loop_state, LOOP_DOWN); 166 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 167 list_for_each_entry(fcport, &vha->vp_fcports, list) 168 fcport->logout_on_delete = 0; 169 170 qla2x00_mark_all_devices_lost(vha); 171 172 /* Remove port id from vp target map */ 173 spin_lock_irqsave(&vha->hw->hardware_lock, flags); 174 qlt_update_vp_map(vha, RESET_AL_PA); 175 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); 176 177 qla2x00_mark_vp_devices_dead(vha); 178 atomic_set(&vha->vp_state, VP_FAILED); 179 vha->flags.management_server_logged_in = 0; 180 if (ret == QLA_SUCCESS) { 181 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); 182 } else { 183 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 184 return -1; 185 } 186 return 0; 187 } 188 189 int 190 qla24xx_enable_vp(scsi_qla_host_t *vha) 191 { 192 int ret; 193 struct qla_hw_data *ha = vha->hw; 194 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 195 196 /* Check if physical ha port is Up */ 197 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || 198 atomic_read(&base_vha->loop_state) == LOOP_DEAD || 199 !(ha->current_topology & ISP_CFG_F)) { 200 vha->vp_err_state = VP_ERR_PORTDWN; 201 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); 202 ql_dbg(ql_dbg_taskm, vha, 0x800b, 203 "%s skip enable. loop_state %x topo %x\n", 204 __func__, base_vha->loop_state.counter, 205 ha->current_topology); 206 207 goto enable_failed; 208 } 209 210 /* Initialize the new vport unless it is a persistent port */ 211 mutex_lock(&ha->vport_lock); 212 ret = qla24xx_modify_vp_config(vha); 213 mutex_unlock(&ha->vport_lock); 214 215 if (ret != QLA_SUCCESS) { 216 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 217 goto enable_failed; 218 } 219 220 ql_dbg(ql_dbg_taskm, vha, 0x801a, 221 "Virtual port with id: %d - Enabled.\n", vha->vp_idx); 222 return 0; 223 224 enable_failed: 225 ql_dbg(ql_dbg_taskm, vha, 0x801b, 226 "Virtual port with id: %d - Disabled.\n", vha->vp_idx); 227 return 1; 228 } 229 230 static void 231 qla24xx_configure_vp(scsi_qla_host_t *vha) 232 { 233 struct fc_vport *fc_vport; 234 int ret; 235 236 fc_vport = vha->fc_vport; 237 238 ql_dbg(ql_dbg_vport, vha, 0xa002, 239 "%s: change request #3.\n", __func__); 240 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); 241 if (ret != QLA_SUCCESS) { 242 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable " 243 "receiving of RSCN requests: 0x%x.\n", ret); 244 return; 245 } else { 246 /* Corresponds to SCR enabled */ 247 clear_bit(VP_SCR_NEEDED, &vha->vp_flags); 248 } 249 250 vha->flags.online = 1; 251 if (qla24xx_configure_vhba(vha)) 252 return; 253 254 atomic_set(&vha->vp_state, VP_ACTIVE); 255 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); 256 } 257 258 void 259 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) 260 { 261 scsi_qla_host_t *vha; 262 struct qla_hw_data *ha = rsp->hw; 263 int i = 0; 264 unsigned long flags; 265 266 spin_lock_irqsave(&ha->vport_slock, flags); 267 list_for_each_entry(vha, &ha->vp_list, list) { 268 if (vha->vp_idx) { 269 if (test_bit(VPORT_DELETE, &vha->dpc_flags)) 270 continue; 271 272 atomic_inc(&vha->vref_count); 273 spin_unlock_irqrestore(&ha->vport_slock, flags); 274 275 switch (mb[0]) { 276 case MBA_LIP_OCCURRED: 277 case MBA_LOOP_UP: 278 case MBA_LOOP_DOWN: 279 case MBA_LIP_RESET: 280 case MBA_POINT_TO_POINT: 281 case MBA_CHG_IN_CONNECTION: 282 ql_dbg(ql_dbg_async, vha, 0x5024, 283 "Async_event for VP[%d], mb=0x%x vha=%p.\n", 284 i, *mb, vha); 285 qla2x00_async_event(vha, rsp, mb); 286 break; 287 case MBA_PORT_UPDATE: 288 case MBA_RSCN_UPDATE: 289 if ((mb[3] & 0xff) == vha->vp_idx) { 290 ql_dbg(ql_dbg_async, vha, 0x5024, 291 "Async_event for VP[%d], mb=0x%x vha=%p\n", 292 i, *mb, vha); 293 qla2x00_async_event(vha, rsp, mb); 294 } 295 break; 296 } 297 298 spin_lock_irqsave(&ha->vport_slock, flags); 299 atomic_dec(&vha->vref_count); 300 wake_up(&vha->vref_waitq); 301 } 302 i++; 303 } 304 spin_unlock_irqrestore(&ha->vport_slock, flags); 305 } 306 307 int 308 qla2x00_vp_abort_isp(scsi_qla_host_t *vha) 309 { 310 fc_port_t *fcport; 311 312 /* 313 * To exclusively reset vport, we need to log it out first. 314 * Note: This control_vp can fail if ISP reset is already 315 * issued, this is expected, as the vp would be already 316 * logged out due to ISP reset. 317 */ 318 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 319 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 320 list_for_each_entry(fcport, &vha->vp_fcports, list) 321 fcport->logout_on_delete = 0; 322 } 323 324 /* 325 * Physical port will do most of the abort and recovery work. We can 326 * just treat it as a loop down 327 */ 328 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 329 atomic_set(&vha->loop_state, LOOP_DOWN); 330 qla2x00_mark_all_devices_lost(vha); 331 } else { 332 if (!atomic_read(&vha->loop_down_timer)) 333 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 334 } 335 336 ql_dbg(ql_dbg_taskm, vha, 0x801d, 337 "Scheduling enable of Vport %d.\n", vha->vp_idx); 338 339 return qla24xx_enable_vp(vha); 340 } 341 342 static int 343 qla2x00_do_dpc_vp(scsi_qla_host_t *vha) 344 { 345 struct qla_hw_data *ha = vha->hw; 346 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 347 348 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, 349 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); 350 351 /* Check if Fw is ready to configure VP first */ 352 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { 353 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { 354 /* VP acquired. complete port configuration */ 355 ql_dbg(ql_dbg_dpc, vha, 0x4014, 356 "Configure VP scheduled.\n"); 357 qla24xx_configure_vp(vha); 358 ql_dbg(ql_dbg_dpc, vha, 0x4015, 359 "Configure VP end.\n"); 360 return 0; 361 } 362 } 363 364 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) { 365 if (atomic_read(&vha->loop_state) == LOOP_READY) { 366 qla24xx_process_purex_list(&vha->purex_list); 367 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); 368 } 369 } 370 371 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { 372 ql_dbg(ql_dbg_dpc, vha, 0x4016, 373 "FCPort update scheduled.\n"); 374 qla2x00_update_fcports(vha); 375 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); 376 ql_dbg(ql_dbg_dpc, vha, 0x4017, 377 "FCPort update end.\n"); 378 } 379 380 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) && 381 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && 382 atomic_read(&vha->loop_state) != LOOP_DOWN) { 383 384 if (!vha->relogin_jif || 385 time_after_eq(jiffies, vha->relogin_jif)) { 386 vha->relogin_jif = jiffies + HZ; 387 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags); 388 389 ql_dbg(ql_dbg_dpc, vha, 0x4018, 390 "Relogin needed scheduled.\n"); 391 qla24xx_post_relogin_work(vha); 392 } 393 } 394 395 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && 396 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { 397 clear_bit(RESET_ACTIVE, &vha->dpc_flags); 398 } 399 400 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { 401 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { 402 ql_dbg(ql_dbg_dpc, vha, 0x401a, 403 "Loop resync scheduled.\n"); 404 qla2x00_loop_resync(vha); 405 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); 406 ql_dbg(ql_dbg_dpc, vha, 0x401b, 407 "Loop resync end.\n"); 408 } 409 } 410 411 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c, 412 "Exiting %s.\n", __func__); 413 return 0; 414 } 415 416 void 417 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) 418 { 419 struct qla_hw_data *ha = vha->hw; 420 scsi_qla_host_t *vp; 421 unsigned long flags = 0; 422 423 if (vha->vp_idx) 424 return; 425 if (list_empty(&ha->vp_list)) 426 return; 427 428 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); 429 430 if (!(ha->current_topology & ISP_CFG_F)) 431 return; 432 433 spin_lock_irqsave(&ha->vport_slock, flags); 434 list_for_each_entry(vp, &ha->vp_list, list) { 435 if (vp->vp_idx) { 436 atomic_inc(&vp->vref_count); 437 spin_unlock_irqrestore(&ha->vport_slock, flags); 438 439 qla2x00_do_dpc_vp(vp); 440 441 spin_lock_irqsave(&ha->vport_slock, flags); 442 atomic_dec(&vp->vref_count); 443 } 444 } 445 spin_unlock_irqrestore(&ha->vport_slock, flags); 446 } 447 448 int 449 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) 450 { 451 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 452 struct qla_hw_data *ha = base_vha->hw; 453 scsi_qla_host_t *vha; 454 uint8_t port_name[WWN_SIZE]; 455 456 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR) 457 return VPCERR_UNSUPPORTED; 458 459 /* Check up the F/W and H/W support NPIV */ 460 if (!ha->flags.npiv_supported) 461 return VPCERR_UNSUPPORTED; 462 463 /* Check up whether npiv supported switch presented */ 464 if (!(ha->switch_cap & FLOGI_MID_SUPPORT)) 465 return VPCERR_NO_FABRIC_SUPP; 466 467 /* Check up unique WWPN */ 468 u64_to_wwn(fc_vport->port_name, port_name); 469 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE)) 470 return VPCERR_BAD_WWN; 471 vha = qla24xx_find_vhost_by_name(ha, port_name); 472 if (vha) 473 return VPCERR_BAD_WWN; 474 475 /* Check up max-npiv-supports */ 476 if (ha->num_vhosts > ha->max_npiv_vports) { 477 ql_dbg(ql_dbg_vport, vha, 0xa004, 478 "num_vhosts %ud is bigger " 479 "than max_npiv_vports %ud.\n", 480 ha->num_vhosts, ha->max_npiv_vports); 481 return VPCERR_UNSUPPORTED; 482 } 483 return 0; 484 } 485 486 scsi_qla_host_t * 487 qla24xx_create_vhost(struct fc_vport *fc_vport) 488 { 489 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 490 struct qla_hw_data *ha = base_vha->hw; 491 scsi_qla_host_t *vha; 492 struct scsi_host_template *sht = &qla2xxx_driver_template; 493 struct Scsi_Host *host; 494 495 vha = qla2x00_create_host(sht, ha); 496 if (!vha) { 497 ql_log(ql_log_warn, vha, 0xa005, 498 "scsi_host_alloc() failed for vport.\n"); 499 return(NULL); 500 } 501 502 host = vha->host; 503 fc_vport->dd_data = vha; 504 /* New host info */ 505 u64_to_wwn(fc_vport->node_name, vha->node_name); 506 u64_to_wwn(fc_vport->port_name, vha->port_name); 507 508 vha->fc_vport = fc_vport; 509 vha->device_flags = 0; 510 vha->vp_idx = qla24xx_allocate_vp_id(vha); 511 if (vha->vp_idx > ha->max_npiv_vports) { 512 ql_dbg(ql_dbg_vport, vha, 0xa006, 513 "Couldn't allocate vp_id.\n"); 514 goto create_vhost_failed; 515 } 516 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha); 517 518 vha->dpc_flags = 0L; 519 ha->dpc_active = 0; 520 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 521 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 522 523 /* 524 * To fix the issue of processing a parent's RSCN for the vport before 525 * its SCR is complete. 526 */ 527 set_bit(VP_SCR_NEEDED, &vha->vp_flags); 528 atomic_set(&vha->loop_state, LOOP_DOWN); 529 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 530 531 qla2x00_start_timer(vha, WATCH_INTERVAL); 532 533 vha->req = base_vha->req; 534 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled; 535 host->can_queue = base_vha->req->length + 128; 536 host->cmd_per_lun = 3; 537 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) 538 host->max_cmd_len = 32; 539 else 540 host->max_cmd_len = MAX_CMDSZ; 541 host->max_channel = MAX_BUSES - 1; 542 host->max_lun = ql2xmaxlun; 543 host->unique_id = host->host_no; 544 host->max_id = ha->max_fibre_devices; 545 host->transportt = qla2xxx_transport_vport_template; 546 547 ql_dbg(ql_dbg_vport, vha, 0xa007, 548 "Detect vport hba %ld at address = %p.\n", 549 vha->host_no, vha); 550 551 vha->flags.init_done = 1; 552 553 mutex_lock(&ha->vport_lock); 554 set_bit(vha->vp_idx, ha->vp_idx_map); 555 ha->cur_vport_count++; 556 mutex_unlock(&ha->vport_lock); 557 558 return vha; 559 560 create_vhost_failed: 561 return NULL; 562 } 563 564 static void 565 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) 566 { 567 struct qla_hw_data *ha = vha->hw; 568 uint16_t que_id = req->id; 569 570 dma_free_coherent(&ha->pdev->dev, (req->length + 1) * 571 sizeof(request_t), req->ring, req->dma); 572 req->ring = NULL; 573 req->dma = 0; 574 if (que_id) { 575 ha->req_q_map[que_id] = NULL; 576 mutex_lock(&ha->vport_lock); 577 clear_bit(que_id, ha->req_qid_map); 578 mutex_unlock(&ha->vport_lock); 579 } 580 kfree(req->outstanding_cmds); 581 kfree(req); 582 req = NULL; 583 } 584 585 static void 586 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 587 { 588 struct qla_hw_data *ha = vha->hw; 589 uint16_t que_id = rsp->id; 590 591 if (rsp->msix && rsp->msix->have_irq) { 592 free_irq(rsp->msix->vector, rsp->msix->handle); 593 rsp->msix->have_irq = 0; 594 rsp->msix->in_use = 0; 595 rsp->msix->handle = NULL; 596 } 597 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * 598 sizeof(response_t), rsp->ring, rsp->dma); 599 rsp->ring = NULL; 600 rsp->dma = 0; 601 if (que_id) { 602 ha->rsp_q_map[que_id] = NULL; 603 mutex_lock(&ha->vport_lock); 604 clear_bit(que_id, ha->rsp_qid_map); 605 mutex_unlock(&ha->vport_lock); 606 } 607 kfree(rsp); 608 rsp = NULL; 609 } 610 611 int 612 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) 613 { 614 int ret = QLA_SUCCESS; 615 616 if (req && vha->flags.qpairs_req_created) { 617 req->options |= BIT_0; 618 ret = qla25xx_init_req_que(vha, req); 619 if (ret != QLA_SUCCESS) 620 return QLA_FUNCTION_FAILED; 621 622 qla25xx_free_req_que(vha, req); 623 } 624 625 return ret; 626 } 627 628 int 629 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 630 { 631 int ret = QLA_SUCCESS; 632 633 if (rsp && vha->flags.qpairs_rsp_created) { 634 rsp->options |= BIT_0; 635 ret = qla25xx_init_rsp_que(vha, rsp); 636 if (ret != QLA_SUCCESS) 637 return QLA_FUNCTION_FAILED; 638 639 qla25xx_free_rsp_que(vha, rsp); 640 } 641 642 return ret; 643 } 644 645 /* Delete all queues for a given vhost */ 646 int 647 qla25xx_delete_queues(struct scsi_qla_host *vha) 648 { 649 int cnt, ret = 0; 650 struct req_que *req = NULL; 651 struct rsp_que *rsp = NULL; 652 struct qla_hw_data *ha = vha->hw; 653 struct qla_qpair *qpair, *tqpair; 654 655 if (ql2xmqsupport || ql2xnvmeenable) { 656 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list, 657 qp_list_elem) 658 qla2xxx_delete_qpair(vha, qpair); 659 } else { 660 /* Delete request queues */ 661 for (cnt = 1; cnt < ha->max_req_queues; cnt++) { 662 req = ha->req_q_map[cnt]; 663 if (req && test_bit(cnt, ha->req_qid_map)) { 664 ret = qla25xx_delete_req_que(vha, req); 665 if (ret != QLA_SUCCESS) { 666 ql_log(ql_log_warn, vha, 0x00ea, 667 "Couldn't delete req que %d.\n", 668 req->id); 669 return ret; 670 } 671 } 672 } 673 674 /* Delete response queues */ 675 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { 676 rsp = ha->rsp_q_map[cnt]; 677 if (rsp && test_bit(cnt, ha->rsp_qid_map)) { 678 ret = qla25xx_delete_rsp_que(vha, rsp); 679 if (ret != QLA_SUCCESS) { 680 ql_log(ql_log_warn, vha, 0x00eb, 681 "Couldn't delete rsp que %d.\n", 682 rsp->id); 683 return ret; 684 } 685 } 686 } 687 } 688 689 return ret; 690 } 691 692 int 693 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, 694 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp) 695 { 696 int ret = 0; 697 struct req_que *req = NULL; 698 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 699 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 700 uint16_t que_id = 0; 701 device_reg_t *reg; 702 uint32_t cnt; 703 704 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 705 if (req == NULL) { 706 ql_log(ql_log_fatal, base_vha, 0x00d9, 707 "Failed to allocate memory for request queue.\n"); 708 goto failed; 709 } 710 711 req->length = REQUEST_ENTRY_CNT_24XX; 712 req->ring = dma_alloc_coherent(&ha->pdev->dev, 713 (req->length + 1) * sizeof(request_t), 714 &req->dma, GFP_KERNEL); 715 if (req->ring == NULL) { 716 ql_log(ql_log_fatal, base_vha, 0x00da, 717 "Failed to allocate memory for request_ring.\n"); 718 goto que_failed; 719 } 720 721 ret = qla2x00_alloc_outstanding_cmds(ha, req); 722 if (ret != QLA_SUCCESS) 723 goto que_failed; 724 725 mutex_lock(&ha->mq_lock); 726 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues); 727 if (que_id >= ha->max_req_queues) { 728 mutex_unlock(&ha->mq_lock); 729 ql_log(ql_log_warn, base_vha, 0x00db, 730 "No resources to create additional request queue.\n"); 731 goto que_failed; 732 } 733 set_bit(que_id, ha->req_qid_map); 734 ha->req_q_map[que_id] = req; 735 req->rid = rid; 736 req->vp_idx = vp_idx; 737 req->qos = qos; 738 739 ql_dbg(ql_dbg_multiq, base_vha, 0xc002, 740 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 741 que_id, req->rid, req->vp_idx, req->qos); 742 ql_dbg(ql_dbg_init, base_vha, 0x00dc, 743 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 744 que_id, req->rid, req->vp_idx, req->qos); 745 if (rsp_que < 0) 746 req->rsp = NULL; 747 else 748 req->rsp = ha->rsp_q_map[rsp_que]; 749 /* Use alternate PCI bus number */ 750 if (MSB(req->rid)) 751 options |= BIT_4; 752 /* Use alternate PCI devfn */ 753 if (LSB(req->rid)) 754 options |= BIT_5; 755 req->options = options; 756 757 ql_dbg(ql_dbg_multiq, base_vha, 0xc003, 758 "options=0x%x.\n", req->options); 759 ql_dbg(ql_dbg_init, base_vha, 0x00dd, 760 "options=0x%x.\n", req->options); 761 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) 762 req->outstanding_cmds[cnt] = NULL; 763 req->current_outstanding_cmd = 1; 764 765 req->ring_ptr = req->ring; 766 req->ring_index = 0; 767 req->cnt = req->length; 768 req->id = que_id; 769 reg = ISP_QUE_REG(ha, que_id); 770 req->req_q_in = ®->isp25mq.req_q_in; 771 req->req_q_out = ®->isp25mq.req_q_out; 772 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 773 req->out_ptr = (uint16_t *)(req->ring + req->length); 774 mutex_unlock(&ha->mq_lock); 775 ql_dbg(ql_dbg_multiq, base_vha, 0xc004, 776 "ring_ptr=%p ring_index=%d, " 777 "cnt=%d id=%d max_q_depth=%d.\n", 778 req->ring_ptr, req->ring_index, 779 req->cnt, req->id, req->max_q_depth); 780 ql_dbg(ql_dbg_init, base_vha, 0x00de, 781 "ring_ptr=%p ring_index=%d, " 782 "cnt=%d id=%d max_q_depth=%d.\n", 783 req->ring_ptr, req->ring_index, req->cnt, 784 req->id, req->max_q_depth); 785 786 if (startqp) { 787 ret = qla25xx_init_req_que(base_vha, req); 788 if (ret != QLA_SUCCESS) { 789 ql_log(ql_log_fatal, base_vha, 0x00df, 790 "%s failed.\n", __func__); 791 mutex_lock(&ha->mq_lock); 792 clear_bit(que_id, ha->req_qid_map); 793 mutex_unlock(&ha->mq_lock); 794 goto que_failed; 795 } 796 vha->flags.qpairs_req_created = 1; 797 } 798 799 return req->id; 800 801 que_failed: 802 qla25xx_free_req_que(base_vha, req); 803 failed: 804 return 0; 805 } 806 807 static void qla_do_work(struct work_struct *work) 808 { 809 unsigned long flags; 810 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work); 811 struct scsi_qla_host *vha; 812 struct qla_hw_data *ha = qpair->hw; 813 814 spin_lock_irqsave(&qpair->qp_lock, flags); 815 vha = pci_get_drvdata(ha->pdev); 816 qla24xx_process_response_queue(vha, qpair->rsp); 817 spin_unlock_irqrestore(&qpair->qp_lock, flags); 818 819 } 820 821 /* create response queue */ 822 int 823 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, 824 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp) 825 { 826 int ret = 0; 827 struct rsp_que *rsp = NULL; 828 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 829 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 830 uint16_t que_id = 0; 831 device_reg_t *reg; 832 833 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 834 if (rsp == NULL) { 835 ql_log(ql_log_warn, base_vha, 0x0066, 836 "Failed to allocate memory for response queue.\n"); 837 goto failed; 838 } 839 840 rsp->length = RESPONSE_ENTRY_CNT_MQ; 841 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 842 (rsp->length + 1) * sizeof(response_t), 843 &rsp->dma, GFP_KERNEL); 844 if (rsp->ring == NULL) { 845 ql_log(ql_log_warn, base_vha, 0x00e1, 846 "Failed to allocate memory for response ring.\n"); 847 goto que_failed; 848 } 849 850 mutex_lock(&ha->mq_lock); 851 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues); 852 if (que_id >= ha->max_rsp_queues) { 853 mutex_unlock(&ha->mq_lock); 854 ql_log(ql_log_warn, base_vha, 0x00e2, 855 "No resources to create additional request queue.\n"); 856 goto que_failed; 857 } 858 set_bit(que_id, ha->rsp_qid_map); 859 860 rsp->msix = qpair->msix; 861 862 ha->rsp_q_map[que_id] = rsp; 863 rsp->rid = rid; 864 rsp->vp_idx = vp_idx; 865 rsp->hw = ha; 866 ql_dbg(ql_dbg_init, base_vha, 0x00e4, 867 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n", 868 que_id, rsp->rid, rsp->vp_idx, rsp->hw); 869 /* Use alternate PCI bus number */ 870 if (MSB(rsp->rid)) 871 options |= BIT_4; 872 /* Use alternate PCI devfn */ 873 if (LSB(rsp->rid)) 874 options |= BIT_5; 875 /* Enable MSIX handshake mode on for uncapable adapters */ 876 if (!IS_MSIX_NACK_CAPABLE(ha)) 877 options |= BIT_6; 878 879 /* Set option to indicate response queue creation */ 880 options |= BIT_1; 881 882 rsp->options = options; 883 rsp->id = que_id; 884 reg = ISP_QUE_REG(ha, que_id); 885 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 886 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 887 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length); 888 mutex_unlock(&ha->mq_lock); 889 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b, 890 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 891 rsp->options, rsp->id, rsp->rsp_q_in, 892 rsp->rsp_q_out); 893 ql_dbg(ql_dbg_init, base_vha, 0x00e5, 894 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 895 rsp->options, rsp->id, rsp->rsp_q_in, 896 rsp->rsp_q_out); 897 898 ret = qla25xx_request_irq(ha, qpair, qpair->msix, 899 ha->flags.disable_msix_handshake ? 900 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS); 901 if (ret) 902 goto que_failed; 903 904 if (startqp) { 905 ret = qla25xx_init_rsp_que(base_vha, rsp); 906 if (ret != QLA_SUCCESS) { 907 ql_log(ql_log_fatal, base_vha, 0x00e7, 908 "%s failed.\n", __func__); 909 mutex_lock(&ha->mq_lock); 910 clear_bit(que_id, ha->rsp_qid_map); 911 mutex_unlock(&ha->mq_lock); 912 goto que_failed; 913 } 914 vha->flags.qpairs_rsp_created = 1; 915 } 916 rsp->req = NULL; 917 918 qla2x00_init_response_q_entries(rsp); 919 if (qpair->hw->wq) 920 INIT_WORK(&qpair->q_work, qla_do_work); 921 return rsp->id; 922 923 que_failed: 924 qla25xx_free_rsp_que(base_vha, rsp); 925 failed: 926 return 0; 927 } 928 929 static void qla_ctrlvp_sp_done(srb_t *sp, int res) 930 { 931 if (sp->comp) 932 complete(sp->comp); 933 /* don't free sp here. Let the caller do the free */ 934 } 935 936 /** 937 * qla24xx_control_vp() - Enable a virtual port for given host 938 * @vha: adapter block pointer 939 * @cmd: command type to be sent for enable virtual port 940 * 941 * Return: qla2xxx local function return status code. 942 */ 943 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) 944 { 945 int rval = QLA_MEMORY_ALLOC_FAILED; 946 struct qla_hw_data *ha = vha->hw; 947 int vp_index = vha->vp_idx; 948 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 949 DECLARE_COMPLETION_ONSTACK(comp); 950 srb_t *sp; 951 952 ql_dbg(ql_dbg_vport, vha, 0x10c1, 953 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index); 954 955 if (vp_index == 0 || vp_index >= ha->max_npiv_vports) 956 return QLA_PARAMETER_ERROR; 957 958 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL); 959 if (!sp) 960 return rval; 961 962 sp->type = SRB_CTRL_VP; 963 sp->name = "ctrl_vp"; 964 sp->comp = ∁ 965 sp->done = qla_ctrlvp_sp_done; 966 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; 967 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); 968 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd; 969 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index; 970 971 rval = qla2x00_start_sp(sp); 972 if (rval != QLA_SUCCESS) { 973 ql_dbg(ql_dbg_async, vha, 0xffff, 974 "%s: %s Failed submission. %x.\n", 975 __func__, sp->name, rval); 976 goto done; 977 } 978 979 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n", 980 sp->name, sp->handle); 981 982 wait_for_completion(&comp); 983 sp->comp = NULL; 984 985 rval = sp->rc; 986 switch (rval) { 987 case QLA_FUNCTION_TIMEOUT: 988 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n", 989 __func__, sp->name, rval); 990 break; 991 case QLA_SUCCESS: 992 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n", 993 __func__, sp->name); 994 break; 995 default: 996 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", 997 __func__, sp->name, rval); 998 break; 999 } 1000 done: 1001 sp->free(sp); 1002 return rval; 1003 } 1004