1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2014 QLogic Corporation 5 */ 6 #include "qla_def.h" 7 #include "qla_gbl.h" 8 #include "qla_target.h" 9 10 #include <linux/moduleparam.h> 11 #include <linux/vmalloc.h> 12 #include <linux/slab.h> 13 #include <linux/list.h> 14 15 #include <scsi/scsi_tcq.h> 16 #include <scsi/scsicam.h> 17 #include <linux/delay.h> 18 19 void 20 qla2x00_vp_stop_timer(scsi_qla_host_t *vha) 21 { 22 if (vha->vp_idx && vha->timer_active) { 23 del_timer_sync(&vha->timer); 24 vha->timer_active = 0; 25 } 26 } 27 28 static uint32_t 29 qla24xx_allocate_vp_id(scsi_qla_host_t *vha) 30 { 31 uint32_t vp_id; 32 struct qla_hw_data *ha = vha->hw; 33 unsigned long flags; 34 35 /* Find an empty slot and assign an vp_id */ 36 mutex_lock(&ha->vport_lock); 37 vp_id = find_first_zero_bit(ha->vp_idx_map, ha->max_npiv_vports + 1); 38 if (vp_id > ha->max_npiv_vports) { 39 ql_dbg(ql_dbg_vport, vha, 0xa000, 40 "vp_id %d is bigger than max-supported %d.\n", 41 vp_id, ha->max_npiv_vports); 42 mutex_unlock(&ha->vport_lock); 43 return vp_id; 44 } 45 46 set_bit(vp_id, ha->vp_idx_map); 47 ha->num_vhosts++; 48 vha->vp_idx = vp_id; 49 50 spin_lock_irqsave(&ha->vport_slock, flags); 51 list_add_tail(&vha->list, &ha->vp_list); 52 spin_unlock_irqrestore(&ha->vport_slock, flags); 53 54 spin_lock_irqsave(&ha->hardware_lock, flags); 55 qlt_update_vp_map(vha, SET_VP_IDX); 56 spin_unlock_irqrestore(&ha->hardware_lock, flags); 57 58 mutex_unlock(&ha->vport_lock); 59 return vp_id; 60 } 61 62 void 63 qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) 64 { 65 uint16_t vp_id; 66 struct qla_hw_data *ha = vha->hw; 67 unsigned long flags = 0; 68 u8 i; 69 70 mutex_lock(&ha->vport_lock); 71 /* 72 * Wait for all pending activities to finish before removing vport from 73 * the list. 74 * Lock needs to be held for safe removal from the list (it 75 * ensures no active vp_list traversal while the vport is removed 76 * from the queue) 77 */ 78 for (i = 0; i < 10; i++) { 79 if (wait_event_timeout(vha->vref_waitq, 80 !atomic_read(&vha->vref_count), HZ) > 0) 81 break; 82 } 83 84 spin_lock_irqsave(&ha->vport_slock, flags); 85 if (atomic_read(&vha->vref_count)) { 86 ql_dbg(ql_dbg_vport, vha, 0xfffa, 87 "vha->vref_count=%u timeout\n", vha->vref_count.counter); 88 vha->vref_count = (atomic_t)ATOMIC_INIT(0); 89 } 90 list_del(&vha->list); 91 qlt_update_vp_map(vha, RESET_VP_IDX); 92 spin_unlock_irqrestore(&ha->vport_slock, flags); 93 94 vp_id = vha->vp_idx; 95 ha->num_vhosts--; 96 clear_bit(vp_id, ha->vp_idx_map); 97 98 mutex_unlock(&ha->vport_lock); 99 } 100 101 static scsi_qla_host_t * 102 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) 103 { 104 scsi_qla_host_t *vha; 105 struct scsi_qla_host *tvha; 106 unsigned long flags; 107 108 spin_lock_irqsave(&ha->vport_slock, flags); 109 /* Locate matching device in database. */ 110 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 111 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) { 112 spin_unlock_irqrestore(&ha->vport_slock, flags); 113 return vha; 114 } 115 } 116 spin_unlock_irqrestore(&ha->vport_slock, flags); 117 return NULL; 118 } 119 120 /* 121 * qla2x00_mark_vp_devices_dead 122 * Updates fcport state when device goes offline. 123 * 124 * Input: 125 * ha = adapter block pointer. 126 * fcport = port structure pointer. 127 * 128 * Return: 129 * None. 130 * 131 * Context: 132 */ 133 static void 134 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) 135 { 136 /* 137 * !!! NOTE !!! 138 * This function, if called in contexts other than vp create, disable 139 * or delete, please make sure this is synchronized with the 140 * delete thread. 141 */ 142 fc_port_t *fcport; 143 144 list_for_each_entry(fcport, &vha->vp_fcports, list) { 145 ql_dbg(ql_dbg_vport, vha, 0xa001, 146 "Marking port dead, loop_id=0x%04x : %x.\n", 147 fcport->loop_id, fcport->vha->vp_idx); 148 149 qla2x00_mark_device_lost(vha, fcport, 0); 150 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED); 151 } 152 } 153 154 int 155 qla24xx_disable_vp(scsi_qla_host_t *vha) 156 { 157 unsigned long flags; 158 int ret = QLA_SUCCESS; 159 fc_port_t *fcport; 160 161 if (vha->hw->flags.fw_started) 162 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 163 164 atomic_set(&vha->loop_state, LOOP_DOWN); 165 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 166 list_for_each_entry(fcport, &vha->vp_fcports, list) 167 fcport->logout_on_delete = 0; 168 169 qla2x00_mark_all_devices_lost(vha); 170 171 /* Remove port id from vp target map */ 172 spin_lock_irqsave(&vha->hw->hardware_lock, flags); 173 qlt_update_vp_map(vha, RESET_AL_PA); 174 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); 175 176 qla2x00_mark_vp_devices_dead(vha); 177 atomic_set(&vha->vp_state, VP_FAILED); 178 vha->flags.management_server_logged_in = 0; 179 if (ret == QLA_SUCCESS) { 180 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); 181 } else { 182 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 183 return -1; 184 } 185 return 0; 186 } 187 188 int 189 qla24xx_enable_vp(scsi_qla_host_t *vha) 190 { 191 int ret; 192 struct qla_hw_data *ha = vha->hw; 193 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 194 195 /* Check if physical ha port is Up */ 196 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || 197 atomic_read(&base_vha->loop_state) == LOOP_DEAD || 198 !(ha->current_topology & ISP_CFG_F)) { 199 vha->vp_err_state = VP_ERR_PORTDWN; 200 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); 201 ql_dbg(ql_dbg_taskm, vha, 0x800b, 202 "%s skip enable. loop_state %x topo %x\n", 203 __func__, base_vha->loop_state.counter, 204 ha->current_topology); 205 206 goto enable_failed; 207 } 208 209 /* Initialize the new vport unless it is a persistent port */ 210 mutex_lock(&ha->vport_lock); 211 ret = qla24xx_modify_vp_config(vha); 212 mutex_unlock(&ha->vport_lock); 213 214 if (ret != QLA_SUCCESS) { 215 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 216 goto enable_failed; 217 } 218 219 ql_dbg(ql_dbg_taskm, vha, 0x801a, 220 "Virtual port with id: %d - Enabled.\n", vha->vp_idx); 221 return 0; 222 223 enable_failed: 224 ql_dbg(ql_dbg_taskm, vha, 0x801b, 225 "Virtual port with id: %d - Disabled.\n", vha->vp_idx); 226 return 1; 227 } 228 229 static void 230 qla24xx_configure_vp(scsi_qla_host_t *vha) 231 { 232 struct fc_vport *fc_vport; 233 int ret; 234 235 fc_vport = vha->fc_vport; 236 237 ql_dbg(ql_dbg_vport, vha, 0xa002, 238 "%s: change request #3.\n", __func__); 239 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); 240 if (ret != QLA_SUCCESS) { 241 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable " 242 "receiving of RSCN requests: 0x%x.\n", ret); 243 return; 244 } else { 245 /* Corresponds to SCR enabled */ 246 clear_bit(VP_SCR_NEEDED, &vha->vp_flags); 247 } 248 249 vha->flags.online = 1; 250 if (qla24xx_configure_vhba(vha)) 251 return; 252 253 atomic_set(&vha->vp_state, VP_ACTIVE); 254 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); 255 } 256 257 void 258 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) 259 { 260 scsi_qla_host_t *vha; 261 struct qla_hw_data *ha = rsp->hw; 262 int i = 0; 263 unsigned long flags; 264 265 spin_lock_irqsave(&ha->vport_slock, flags); 266 list_for_each_entry(vha, &ha->vp_list, list) { 267 if (vha->vp_idx) { 268 if (test_bit(VPORT_DELETE, &vha->dpc_flags)) 269 continue; 270 271 atomic_inc(&vha->vref_count); 272 spin_unlock_irqrestore(&ha->vport_slock, flags); 273 274 switch (mb[0]) { 275 case MBA_LIP_OCCURRED: 276 case MBA_LOOP_UP: 277 case MBA_LOOP_DOWN: 278 case MBA_LIP_RESET: 279 case MBA_POINT_TO_POINT: 280 case MBA_CHG_IN_CONNECTION: 281 ql_dbg(ql_dbg_async, vha, 0x5024, 282 "Async_event for VP[%d], mb=0x%x vha=%p.\n", 283 i, *mb, vha); 284 qla2x00_async_event(vha, rsp, mb); 285 break; 286 case MBA_PORT_UPDATE: 287 case MBA_RSCN_UPDATE: 288 if ((mb[3] & 0xff) == vha->vp_idx) { 289 ql_dbg(ql_dbg_async, vha, 0x5024, 290 "Async_event for VP[%d], mb=0x%x vha=%p\n", 291 i, *mb, vha); 292 qla2x00_async_event(vha, rsp, mb); 293 } 294 break; 295 } 296 297 spin_lock_irqsave(&ha->vport_slock, flags); 298 atomic_dec(&vha->vref_count); 299 wake_up(&vha->vref_waitq); 300 } 301 i++; 302 } 303 spin_unlock_irqrestore(&ha->vport_slock, flags); 304 } 305 306 int 307 qla2x00_vp_abort_isp(scsi_qla_host_t *vha) 308 { 309 fc_port_t *fcport; 310 311 /* 312 * To exclusively reset vport, we need to log it out first. 313 * Note: This control_vp can fail if ISP reset is already 314 * issued, this is expected, as the vp would be already 315 * logged out due to ISP reset. 316 */ 317 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 318 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 319 list_for_each_entry(fcport, &vha->vp_fcports, list) 320 fcport->logout_on_delete = 0; 321 } 322 323 /* 324 * Physical port will do most of the abort and recovery work. We can 325 * just treat it as a loop down 326 */ 327 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 328 atomic_set(&vha->loop_state, LOOP_DOWN); 329 qla2x00_mark_all_devices_lost(vha); 330 } else { 331 if (!atomic_read(&vha->loop_down_timer)) 332 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 333 } 334 335 ql_dbg(ql_dbg_taskm, vha, 0x801d, 336 "Scheduling enable of Vport %d.\n", vha->vp_idx); 337 338 return qla24xx_enable_vp(vha); 339 } 340 341 static int 342 qla2x00_do_dpc_vp(scsi_qla_host_t *vha) 343 { 344 struct qla_hw_data *ha = vha->hw; 345 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 346 347 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, 348 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); 349 350 /* Check if Fw is ready to configure VP first */ 351 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { 352 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { 353 /* VP acquired. complete port configuration */ 354 ql_dbg(ql_dbg_dpc, vha, 0x4014, 355 "Configure VP scheduled.\n"); 356 qla24xx_configure_vp(vha); 357 ql_dbg(ql_dbg_dpc, vha, 0x4015, 358 "Configure VP end.\n"); 359 return 0; 360 } 361 } 362 363 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) { 364 if (atomic_read(&vha->loop_state) == LOOP_READY) { 365 qla24xx_process_purex_list(&vha->purex_list); 366 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); 367 } 368 } 369 370 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { 371 ql_dbg(ql_dbg_dpc, vha, 0x4016, 372 "FCPort update scheduled.\n"); 373 qla2x00_update_fcports(vha); 374 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); 375 ql_dbg(ql_dbg_dpc, vha, 0x4017, 376 "FCPort update end.\n"); 377 } 378 379 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) && 380 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && 381 atomic_read(&vha->loop_state) != LOOP_DOWN) { 382 383 if (!vha->relogin_jif || 384 time_after_eq(jiffies, vha->relogin_jif)) { 385 vha->relogin_jif = jiffies + HZ; 386 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags); 387 388 ql_dbg(ql_dbg_dpc, vha, 0x4018, 389 "Relogin needed scheduled.\n"); 390 qla24xx_post_relogin_work(vha); 391 } 392 } 393 394 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && 395 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { 396 clear_bit(RESET_ACTIVE, &vha->dpc_flags); 397 } 398 399 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { 400 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { 401 ql_dbg(ql_dbg_dpc, vha, 0x401a, 402 "Loop resync scheduled.\n"); 403 qla2x00_loop_resync(vha); 404 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); 405 ql_dbg(ql_dbg_dpc, vha, 0x401b, 406 "Loop resync end.\n"); 407 } 408 } 409 410 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c, 411 "Exiting %s.\n", __func__); 412 return 0; 413 } 414 415 void 416 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) 417 { 418 struct qla_hw_data *ha = vha->hw; 419 scsi_qla_host_t *vp; 420 unsigned long flags = 0; 421 422 if (vha->vp_idx) 423 return; 424 if (list_empty(&ha->vp_list)) 425 return; 426 427 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); 428 429 if (!(ha->current_topology & ISP_CFG_F)) 430 return; 431 432 spin_lock_irqsave(&ha->vport_slock, flags); 433 list_for_each_entry(vp, &ha->vp_list, list) { 434 if (vp->vp_idx) { 435 atomic_inc(&vp->vref_count); 436 spin_unlock_irqrestore(&ha->vport_slock, flags); 437 438 qla2x00_do_dpc_vp(vp); 439 440 spin_lock_irqsave(&ha->vport_slock, flags); 441 atomic_dec(&vp->vref_count); 442 } 443 } 444 spin_unlock_irqrestore(&ha->vport_slock, flags); 445 } 446 447 int 448 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) 449 { 450 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 451 struct qla_hw_data *ha = base_vha->hw; 452 scsi_qla_host_t *vha; 453 uint8_t port_name[WWN_SIZE]; 454 455 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR) 456 return VPCERR_UNSUPPORTED; 457 458 /* Check up the F/W and H/W support NPIV */ 459 if (!ha->flags.npiv_supported) 460 return VPCERR_UNSUPPORTED; 461 462 /* Check up whether npiv supported switch presented */ 463 if (!(ha->switch_cap & FLOGI_MID_SUPPORT)) 464 return VPCERR_NO_FABRIC_SUPP; 465 466 /* Check up unique WWPN */ 467 u64_to_wwn(fc_vport->port_name, port_name); 468 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE)) 469 return VPCERR_BAD_WWN; 470 vha = qla24xx_find_vhost_by_name(ha, port_name); 471 if (vha) 472 return VPCERR_BAD_WWN; 473 474 /* Check up max-npiv-supports */ 475 if (ha->num_vhosts > ha->max_npiv_vports) { 476 ql_dbg(ql_dbg_vport, vha, 0xa004, 477 "num_vhosts %ud is bigger " 478 "than max_npiv_vports %ud.\n", 479 ha->num_vhosts, ha->max_npiv_vports); 480 return VPCERR_UNSUPPORTED; 481 } 482 return 0; 483 } 484 485 scsi_qla_host_t * 486 qla24xx_create_vhost(struct fc_vport *fc_vport) 487 { 488 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 489 struct qla_hw_data *ha = base_vha->hw; 490 scsi_qla_host_t *vha; 491 struct scsi_host_template *sht = &qla2xxx_driver_template; 492 struct Scsi_Host *host; 493 494 vha = qla2x00_create_host(sht, ha); 495 if (!vha) { 496 ql_log(ql_log_warn, vha, 0xa005, 497 "scsi_host_alloc() failed for vport.\n"); 498 return(NULL); 499 } 500 501 host = vha->host; 502 fc_vport->dd_data = vha; 503 /* New host info */ 504 u64_to_wwn(fc_vport->node_name, vha->node_name); 505 u64_to_wwn(fc_vport->port_name, vha->port_name); 506 507 vha->fc_vport = fc_vport; 508 vha->device_flags = 0; 509 vha->vp_idx = qla24xx_allocate_vp_id(vha); 510 if (vha->vp_idx > ha->max_npiv_vports) { 511 ql_dbg(ql_dbg_vport, vha, 0xa006, 512 "Couldn't allocate vp_id.\n"); 513 goto create_vhost_failed; 514 } 515 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha); 516 517 vha->dpc_flags = 0L; 518 ha->dpc_active = 0; 519 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 520 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 521 522 /* 523 * To fix the issue of processing a parent's RSCN for the vport before 524 * its SCR is complete. 525 */ 526 set_bit(VP_SCR_NEEDED, &vha->vp_flags); 527 atomic_set(&vha->loop_state, LOOP_DOWN); 528 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 529 530 qla2x00_start_timer(vha, WATCH_INTERVAL); 531 532 vha->req = base_vha->req; 533 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled; 534 host->can_queue = base_vha->req->length + 128; 535 host->cmd_per_lun = 3; 536 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) 537 host->max_cmd_len = 32; 538 else 539 host->max_cmd_len = MAX_CMDSZ; 540 host->max_channel = MAX_BUSES - 1; 541 host->max_lun = ql2xmaxlun; 542 host->unique_id = host->host_no; 543 host->max_id = ha->max_fibre_devices; 544 host->transportt = qla2xxx_transport_vport_template; 545 546 ql_dbg(ql_dbg_vport, vha, 0xa007, 547 "Detect vport hba %ld at address = %p.\n", 548 vha->host_no, vha); 549 550 vha->flags.init_done = 1; 551 552 mutex_lock(&ha->vport_lock); 553 set_bit(vha->vp_idx, ha->vp_idx_map); 554 ha->cur_vport_count++; 555 mutex_unlock(&ha->vport_lock); 556 557 return vha; 558 559 create_vhost_failed: 560 return NULL; 561 } 562 563 static void 564 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) 565 { 566 struct qla_hw_data *ha = vha->hw; 567 uint16_t que_id = req->id; 568 569 dma_free_coherent(&ha->pdev->dev, (req->length + 1) * 570 sizeof(request_t), req->ring, req->dma); 571 req->ring = NULL; 572 req->dma = 0; 573 if (que_id) { 574 ha->req_q_map[que_id] = NULL; 575 mutex_lock(&ha->vport_lock); 576 clear_bit(que_id, ha->req_qid_map); 577 mutex_unlock(&ha->vport_lock); 578 } 579 kfree(req->outstanding_cmds); 580 kfree(req); 581 req = NULL; 582 } 583 584 static void 585 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 586 { 587 struct qla_hw_data *ha = vha->hw; 588 uint16_t que_id = rsp->id; 589 590 if (rsp->msix && rsp->msix->have_irq) { 591 free_irq(rsp->msix->vector, rsp->msix->handle); 592 rsp->msix->have_irq = 0; 593 rsp->msix->in_use = 0; 594 rsp->msix->handle = NULL; 595 } 596 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * 597 sizeof(response_t), rsp->ring, rsp->dma); 598 rsp->ring = NULL; 599 rsp->dma = 0; 600 if (que_id) { 601 ha->rsp_q_map[que_id] = NULL; 602 mutex_lock(&ha->vport_lock); 603 clear_bit(que_id, ha->rsp_qid_map); 604 mutex_unlock(&ha->vport_lock); 605 } 606 kfree(rsp); 607 rsp = NULL; 608 } 609 610 int 611 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) 612 { 613 int ret = QLA_SUCCESS; 614 615 if (req && vha->flags.qpairs_req_created) { 616 req->options |= BIT_0; 617 ret = qla25xx_init_req_que(vha, req); 618 if (ret != QLA_SUCCESS) 619 return QLA_FUNCTION_FAILED; 620 621 qla25xx_free_req_que(vha, req); 622 } 623 624 return ret; 625 } 626 627 int 628 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 629 { 630 int ret = QLA_SUCCESS; 631 632 if (rsp && vha->flags.qpairs_rsp_created) { 633 rsp->options |= BIT_0; 634 ret = qla25xx_init_rsp_que(vha, rsp); 635 if (ret != QLA_SUCCESS) 636 return QLA_FUNCTION_FAILED; 637 638 qla25xx_free_rsp_que(vha, rsp); 639 } 640 641 return ret; 642 } 643 644 /* Delete all queues for a given vhost */ 645 int 646 qla25xx_delete_queues(struct scsi_qla_host *vha) 647 { 648 int cnt, ret = 0; 649 struct req_que *req = NULL; 650 struct rsp_que *rsp = NULL; 651 struct qla_hw_data *ha = vha->hw; 652 struct qla_qpair *qpair, *tqpair; 653 654 if (ql2xmqsupport || ql2xnvmeenable) { 655 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list, 656 qp_list_elem) 657 qla2xxx_delete_qpair(vha, qpair); 658 } else { 659 /* Delete request queues */ 660 for (cnt = 1; cnt < ha->max_req_queues; cnt++) { 661 req = ha->req_q_map[cnt]; 662 if (req && test_bit(cnt, ha->req_qid_map)) { 663 ret = qla25xx_delete_req_que(vha, req); 664 if (ret != QLA_SUCCESS) { 665 ql_log(ql_log_warn, vha, 0x00ea, 666 "Couldn't delete req que %d.\n", 667 req->id); 668 return ret; 669 } 670 } 671 } 672 673 /* Delete response queues */ 674 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { 675 rsp = ha->rsp_q_map[cnt]; 676 if (rsp && test_bit(cnt, ha->rsp_qid_map)) { 677 ret = qla25xx_delete_rsp_que(vha, rsp); 678 if (ret != QLA_SUCCESS) { 679 ql_log(ql_log_warn, vha, 0x00eb, 680 "Couldn't delete rsp que %d.\n", 681 rsp->id); 682 return ret; 683 } 684 } 685 } 686 } 687 688 return ret; 689 } 690 691 int 692 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, 693 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp) 694 { 695 int ret = 0; 696 struct req_que *req = NULL; 697 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 698 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 699 uint16_t que_id = 0; 700 device_reg_t *reg; 701 uint32_t cnt; 702 703 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 704 if (req == NULL) { 705 ql_log(ql_log_fatal, base_vha, 0x00d9, 706 "Failed to allocate memory for request queue.\n"); 707 goto failed; 708 } 709 710 req->length = REQUEST_ENTRY_CNT_24XX; 711 req->ring = dma_alloc_coherent(&ha->pdev->dev, 712 (req->length + 1) * sizeof(request_t), 713 &req->dma, GFP_KERNEL); 714 if (req->ring == NULL) { 715 ql_log(ql_log_fatal, base_vha, 0x00da, 716 "Failed to allocate memory for request_ring.\n"); 717 goto que_failed; 718 } 719 720 ret = qla2x00_alloc_outstanding_cmds(ha, req); 721 if (ret != QLA_SUCCESS) 722 goto que_failed; 723 724 mutex_lock(&ha->mq_lock); 725 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues); 726 if (que_id >= ha->max_req_queues) { 727 mutex_unlock(&ha->mq_lock); 728 ql_log(ql_log_warn, base_vha, 0x00db, 729 "No resources to create additional request queue.\n"); 730 goto que_failed; 731 } 732 set_bit(que_id, ha->req_qid_map); 733 ha->req_q_map[que_id] = req; 734 req->rid = rid; 735 req->vp_idx = vp_idx; 736 req->qos = qos; 737 738 ql_dbg(ql_dbg_multiq, base_vha, 0xc002, 739 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 740 que_id, req->rid, req->vp_idx, req->qos); 741 ql_dbg(ql_dbg_init, base_vha, 0x00dc, 742 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 743 que_id, req->rid, req->vp_idx, req->qos); 744 if (rsp_que < 0) 745 req->rsp = NULL; 746 else 747 req->rsp = ha->rsp_q_map[rsp_que]; 748 /* Use alternate PCI bus number */ 749 if (MSB(req->rid)) 750 options |= BIT_4; 751 /* Use alternate PCI devfn */ 752 if (LSB(req->rid)) 753 options |= BIT_5; 754 req->options = options; 755 756 ql_dbg(ql_dbg_multiq, base_vha, 0xc003, 757 "options=0x%x.\n", req->options); 758 ql_dbg(ql_dbg_init, base_vha, 0x00dd, 759 "options=0x%x.\n", req->options); 760 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) 761 req->outstanding_cmds[cnt] = NULL; 762 req->current_outstanding_cmd = 1; 763 764 req->ring_ptr = req->ring; 765 req->ring_index = 0; 766 req->cnt = req->length; 767 req->id = que_id; 768 reg = ISP_QUE_REG(ha, que_id); 769 req->req_q_in = ®->isp25mq.req_q_in; 770 req->req_q_out = ®->isp25mq.req_q_out; 771 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 772 req->out_ptr = (uint16_t *)(req->ring + req->length); 773 mutex_unlock(&ha->mq_lock); 774 ql_dbg(ql_dbg_multiq, base_vha, 0xc004, 775 "ring_ptr=%p ring_index=%d, " 776 "cnt=%d id=%d max_q_depth=%d.\n", 777 req->ring_ptr, req->ring_index, 778 req->cnt, req->id, req->max_q_depth); 779 ql_dbg(ql_dbg_init, base_vha, 0x00de, 780 "ring_ptr=%p ring_index=%d, " 781 "cnt=%d id=%d max_q_depth=%d.\n", 782 req->ring_ptr, req->ring_index, req->cnt, 783 req->id, req->max_q_depth); 784 785 if (startqp) { 786 ret = qla25xx_init_req_que(base_vha, req); 787 if (ret != QLA_SUCCESS) { 788 ql_log(ql_log_fatal, base_vha, 0x00df, 789 "%s failed.\n", __func__); 790 mutex_lock(&ha->mq_lock); 791 clear_bit(que_id, ha->req_qid_map); 792 mutex_unlock(&ha->mq_lock); 793 goto que_failed; 794 } 795 vha->flags.qpairs_req_created = 1; 796 } 797 798 return req->id; 799 800 que_failed: 801 qla25xx_free_req_que(base_vha, req); 802 failed: 803 return 0; 804 } 805 806 static void qla_do_work(struct work_struct *work) 807 { 808 unsigned long flags; 809 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work); 810 struct scsi_qla_host *vha = qpair->vha; 811 812 spin_lock_irqsave(&qpair->qp_lock, flags); 813 qla24xx_process_response_queue(vha, qpair->rsp); 814 spin_unlock_irqrestore(&qpair->qp_lock, flags); 815 816 } 817 818 /* create response queue */ 819 int 820 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, 821 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp) 822 { 823 int ret = 0; 824 struct rsp_que *rsp = NULL; 825 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 826 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 827 uint16_t que_id = 0; 828 device_reg_t *reg; 829 830 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 831 if (rsp == NULL) { 832 ql_log(ql_log_warn, base_vha, 0x0066, 833 "Failed to allocate memory for response queue.\n"); 834 goto failed; 835 } 836 837 rsp->length = RESPONSE_ENTRY_CNT_MQ; 838 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 839 (rsp->length + 1) * sizeof(response_t), 840 &rsp->dma, GFP_KERNEL); 841 if (rsp->ring == NULL) { 842 ql_log(ql_log_warn, base_vha, 0x00e1, 843 "Failed to allocate memory for response ring.\n"); 844 goto que_failed; 845 } 846 847 mutex_lock(&ha->mq_lock); 848 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues); 849 if (que_id >= ha->max_rsp_queues) { 850 mutex_unlock(&ha->mq_lock); 851 ql_log(ql_log_warn, base_vha, 0x00e2, 852 "No resources to create additional request queue.\n"); 853 goto que_failed; 854 } 855 set_bit(que_id, ha->rsp_qid_map); 856 857 rsp->msix = qpair->msix; 858 859 ha->rsp_q_map[que_id] = rsp; 860 rsp->rid = rid; 861 rsp->vp_idx = vp_idx; 862 rsp->hw = ha; 863 ql_dbg(ql_dbg_init, base_vha, 0x00e4, 864 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n", 865 que_id, rsp->rid, rsp->vp_idx, rsp->hw); 866 /* Use alternate PCI bus number */ 867 if (MSB(rsp->rid)) 868 options |= BIT_4; 869 /* Use alternate PCI devfn */ 870 if (LSB(rsp->rid)) 871 options |= BIT_5; 872 /* Enable MSIX handshake mode on for uncapable adapters */ 873 if (!IS_MSIX_NACK_CAPABLE(ha)) 874 options |= BIT_6; 875 876 /* Set option to indicate response queue creation */ 877 options |= BIT_1; 878 879 rsp->options = options; 880 rsp->id = que_id; 881 reg = ISP_QUE_REG(ha, que_id); 882 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 883 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 884 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length); 885 mutex_unlock(&ha->mq_lock); 886 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b, 887 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 888 rsp->options, rsp->id, rsp->rsp_q_in, 889 rsp->rsp_q_out); 890 ql_dbg(ql_dbg_init, base_vha, 0x00e5, 891 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 892 rsp->options, rsp->id, rsp->rsp_q_in, 893 rsp->rsp_q_out); 894 895 ret = qla25xx_request_irq(ha, qpair, qpair->msix, 896 ha->flags.disable_msix_handshake ? 897 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS); 898 if (ret) 899 goto que_failed; 900 901 if (startqp) { 902 ret = qla25xx_init_rsp_que(base_vha, rsp); 903 if (ret != QLA_SUCCESS) { 904 ql_log(ql_log_fatal, base_vha, 0x00e7, 905 "%s failed.\n", __func__); 906 mutex_lock(&ha->mq_lock); 907 clear_bit(que_id, ha->rsp_qid_map); 908 mutex_unlock(&ha->mq_lock); 909 goto que_failed; 910 } 911 vha->flags.qpairs_rsp_created = 1; 912 } 913 rsp->req = NULL; 914 915 qla2x00_init_response_q_entries(rsp); 916 if (qpair->hw->wq) 917 INIT_WORK(&qpair->q_work, qla_do_work); 918 return rsp->id; 919 920 que_failed: 921 qla25xx_free_rsp_que(base_vha, rsp); 922 failed: 923 return 0; 924 } 925 926 static void qla_ctrlvp_sp_done(srb_t *sp, int res) 927 { 928 if (sp->comp) 929 complete(sp->comp); 930 /* don't free sp here. Let the caller do the free */ 931 } 932 933 /** 934 * qla24xx_control_vp() - Enable a virtual port for given host 935 * @vha: adapter block pointer 936 * @cmd: command type to be sent for enable virtual port 937 * 938 * Return: qla2xxx local function return status code. 939 */ 940 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) 941 { 942 int rval = QLA_MEMORY_ALLOC_FAILED; 943 struct qla_hw_data *ha = vha->hw; 944 int vp_index = vha->vp_idx; 945 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 946 DECLARE_COMPLETION_ONSTACK(comp); 947 srb_t *sp; 948 949 ql_dbg(ql_dbg_vport, vha, 0x10c1, 950 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index); 951 952 if (vp_index == 0 || vp_index >= ha->max_npiv_vports) 953 return QLA_PARAMETER_ERROR; 954 955 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL); 956 if (!sp) 957 return rval; 958 959 sp->type = SRB_CTRL_VP; 960 sp->name = "ctrl_vp"; 961 sp->comp = ∁ 962 sp->done = qla_ctrlvp_sp_done; 963 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; 964 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); 965 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd; 966 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index; 967 968 rval = qla2x00_start_sp(sp); 969 if (rval != QLA_SUCCESS) { 970 ql_dbg(ql_dbg_async, vha, 0xffff, 971 "%s: %s Failed submission. %x.\n", 972 __func__, sp->name, rval); 973 goto done; 974 } 975 976 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n", 977 sp->name, sp->handle); 978 979 wait_for_completion(&comp); 980 sp->comp = NULL; 981 982 rval = sp->rc; 983 switch (rval) { 984 case QLA_FUNCTION_TIMEOUT: 985 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n", 986 __func__, sp->name, rval); 987 break; 988 case QLA_SUCCESS: 989 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n", 990 __func__, sp->name); 991 break; 992 default: 993 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", 994 __func__, sp->name, rval); 995 break; 996 } 997 done: 998 sp->free(sp); 999 return rval; 1000 } 1001