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 u32 i, bailout; 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 bailout = 0; 79 for (i = 0; i < 500; i++) { 80 spin_lock_irqsave(&ha->vport_slock, flags); 81 if (atomic_read(&vha->vref_count) == 0) { 82 list_del(&vha->list); 83 qlt_update_vp_map(vha, RESET_VP_IDX); 84 bailout = 1; 85 } 86 spin_unlock_irqrestore(&ha->vport_slock, flags); 87 88 if (bailout) 89 break; 90 else 91 msleep(20); 92 } 93 if (!bailout) { 94 ql_log(ql_log_info, vha, 0xfffa, 95 "vha->vref_count=%u timeout\n", vha->vref_count.counter); 96 spin_lock_irqsave(&ha->vport_slock, flags); 97 list_del(&vha->list); 98 qlt_update_vp_map(vha, RESET_VP_IDX); 99 spin_unlock_irqrestore(&ha->vport_slock, flags); 100 } 101 102 vp_id = vha->vp_idx; 103 ha->num_vhosts--; 104 clear_bit(vp_id, ha->vp_idx_map); 105 106 mutex_unlock(&ha->vport_lock); 107 } 108 109 static scsi_qla_host_t * 110 qla24xx_find_vhost_by_name(struct qla_hw_data *ha, uint8_t *port_name) 111 { 112 scsi_qla_host_t *vha; 113 struct scsi_qla_host *tvha; 114 unsigned long flags; 115 116 spin_lock_irqsave(&ha->vport_slock, flags); 117 /* Locate matching device in database. */ 118 list_for_each_entry_safe(vha, tvha, &ha->vp_list, list) { 119 if (!memcmp(port_name, vha->port_name, WWN_SIZE)) { 120 spin_unlock_irqrestore(&ha->vport_slock, flags); 121 return vha; 122 } 123 } 124 spin_unlock_irqrestore(&ha->vport_slock, flags); 125 return NULL; 126 } 127 128 /* 129 * qla2x00_mark_vp_devices_dead 130 * Updates fcport state when device goes offline. 131 * 132 * Input: 133 * ha = adapter block pointer. 134 * fcport = port structure pointer. 135 * 136 * Return: 137 * None. 138 * 139 * Context: 140 */ 141 static void 142 qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha) 143 { 144 /* 145 * !!! NOTE !!! 146 * This function, if called in contexts other than vp create, disable 147 * or delete, please make sure this is synchronized with the 148 * delete thread. 149 */ 150 fc_port_t *fcport; 151 152 list_for_each_entry(fcport, &vha->vp_fcports, list) { 153 ql_dbg(ql_dbg_vport, vha, 0xa001, 154 "Marking port dead, loop_id=0x%04x : %x.\n", 155 fcport->loop_id, fcport->vha->vp_idx); 156 157 qla2x00_mark_device_lost(vha, fcport, 0); 158 qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED); 159 } 160 } 161 162 int 163 qla24xx_disable_vp(scsi_qla_host_t *vha) 164 { 165 unsigned long flags; 166 int ret = QLA_SUCCESS; 167 fc_port_t *fcport; 168 169 if (vha->hw->flags.edif_enabled) 170 /* delete sessions and flush sa_indexes */ 171 qla2x00_wait_for_sess_deletion(vha); 172 173 if (vha->hw->flags.fw_started) 174 ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 175 176 atomic_set(&vha->loop_state, LOOP_DOWN); 177 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 178 list_for_each_entry(fcport, &vha->vp_fcports, list) 179 fcport->logout_on_delete = 0; 180 181 if (!vha->hw->flags.edif_enabled) 182 qla2x00_wait_for_sess_deletion(vha); 183 184 /* Remove port id from vp target map */ 185 spin_lock_irqsave(&vha->hw->hardware_lock, flags); 186 qlt_update_vp_map(vha, RESET_AL_PA); 187 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); 188 189 qla2x00_mark_vp_devices_dead(vha); 190 atomic_set(&vha->vp_state, VP_FAILED); 191 vha->flags.management_server_logged_in = 0; 192 if (ret == QLA_SUCCESS) { 193 fc_vport_set_state(vha->fc_vport, FC_VPORT_DISABLED); 194 } else { 195 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 196 return -1; 197 } 198 return 0; 199 } 200 201 int 202 qla24xx_enable_vp(scsi_qla_host_t *vha) 203 { 204 int ret; 205 struct qla_hw_data *ha = vha->hw; 206 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 207 208 /* Check if physical ha port is Up */ 209 if (atomic_read(&base_vha->loop_state) == LOOP_DOWN || 210 atomic_read(&base_vha->loop_state) == LOOP_DEAD || 211 !(ha->current_topology & ISP_CFG_F)) { 212 vha->vp_err_state = VP_ERR_PORTDWN; 213 fc_vport_set_state(vha->fc_vport, FC_VPORT_LINKDOWN); 214 ql_dbg(ql_dbg_taskm, vha, 0x800b, 215 "%s skip enable. loop_state %x topo %x\n", 216 __func__, base_vha->loop_state.counter, 217 ha->current_topology); 218 219 goto enable_failed; 220 } 221 222 /* Initialize the new vport unless it is a persistent port */ 223 mutex_lock(&ha->vport_lock); 224 ret = qla24xx_modify_vp_config(vha); 225 mutex_unlock(&ha->vport_lock); 226 227 if (ret != QLA_SUCCESS) { 228 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 229 goto enable_failed; 230 } 231 232 ql_dbg(ql_dbg_taskm, vha, 0x801a, 233 "Virtual port with id: %d - Enabled.\n", vha->vp_idx); 234 return 0; 235 236 enable_failed: 237 ql_dbg(ql_dbg_taskm, vha, 0x801b, 238 "Virtual port with id: %d - Disabled.\n", vha->vp_idx); 239 return 1; 240 } 241 242 static void 243 qla24xx_configure_vp(scsi_qla_host_t *vha) 244 { 245 struct fc_vport *fc_vport; 246 int ret; 247 248 fc_vport = vha->fc_vport; 249 250 ql_dbg(ql_dbg_vport, vha, 0xa002, 251 "%s: change request #3.\n", __func__); 252 ret = qla2x00_send_change_request(vha, 0x3, vha->vp_idx); 253 if (ret != QLA_SUCCESS) { 254 ql_dbg(ql_dbg_vport, vha, 0xa003, "Failed to enable " 255 "receiving of RSCN requests: 0x%x.\n", ret); 256 return; 257 } else { 258 /* Corresponds to SCR enabled */ 259 clear_bit(VP_SCR_NEEDED, &vha->vp_flags); 260 } 261 262 vha->flags.online = 1; 263 if (qla24xx_configure_vhba(vha)) 264 return; 265 266 atomic_set(&vha->vp_state, VP_ACTIVE); 267 fc_vport_set_state(fc_vport, FC_VPORT_ACTIVE); 268 } 269 270 void 271 qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) 272 { 273 scsi_qla_host_t *vha, *tvp; 274 struct qla_hw_data *ha = rsp->hw; 275 int i = 0; 276 unsigned long flags; 277 278 spin_lock_irqsave(&ha->vport_slock, flags); 279 list_for_each_entry_safe(vha, tvp, &ha->vp_list, list) { 280 if (vha->vp_idx) { 281 if (test_bit(VPORT_DELETE, &vha->dpc_flags)) 282 continue; 283 284 atomic_inc(&vha->vref_count); 285 spin_unlock_irqrestore(&ha->vport_slock, flags); 286 287 switch (mb[0]) { 288 case MBA_LIP_OCCURRED: 289 case MBA_LOOP_UP: 290 case MBA_LOOP_DOWN: 291 case MBA_LIP_RESET: 292 case MBA_POINT_TO_POINT: 293 case MBA_CHG_IN_CONNECTION: 294 ql_dbg(ql_dbg_async, vha, 0x5024, 295 "Async_event for VP[%d], mb=0x%x vha=%p.\n", 296 i, *mb, vha); 297 qla2x00_async_event(vha, rsp, mb); 298 break; 299 case MBA_PORT_UPDATE: 300 case MBA_RSCN_UPDATE: 301 if ((mb[3] & 0xff) == vha->vp_idx) { 302 ql_dbg(ql_dbg_async, vha, 0x5024, 303 "Async_event for VP[%d], mb=0x%x vha=%p\n", 304 i, *mb, vha); 305 qla2x00_async_event(vha, rsp, mb); 306 } 307 break; 308 } 309 310 spin_lock_irqsave(&ha->vport_slock, flags); 311 atomic_dec(&vha->vref_count); 312 wake_up(&vha->vref_waitq); 313 } 314 i++; 315 } 316 spin_unlock_irqrestore(&ha->vport_slock, flags); 317 } 318 319 int 320 qla2x00_vp_abort_isp(scsi_qla_host_t *vha) 321 { 322 fc_port_t *fcport; 323 324 /* 325 * To exclusively reset vport, we need to log it out first. 326 * Note: This control_vp can fail if ISP reset is already 327 * issued, this is expected, as the vp would be already 328 * logged out due to ISP reset. 329 */ 330 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 331 qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL); 332 list_for_each_entry(fcport, &vha->vp_fcports, list) 333 fcport->logout_on_delete = 0; 334 } 335 336 /* 337 * Physical port will do most of the abort and recovery work. We can 338 * just treat it as a loop down 339 */ 340 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 341 atomic_set(&vha->loop_state, LOOP_DOWN); 342 qla2x00_mark_all_devices_lost(vha); 343 } else { 344 if (!atomic_read(&vha->loop_down_timer)) 345 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 346 } 347 348 ql_dbg(ql_dbg_taskm, vha, 0x801d, 349 "Scheduling enable of Vport %d.\n", vha->vp_idx); 350 351 return qla24xx_enable_vp(vha); 352 } 353 354 static int 355 qla2x00_do_dpc_vp(scsi_qla_host_t *vha) 356 { 357 struct qla_hw_data *ha = vha->hw; 358 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 359 360 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x4012, 361 "Entering %s vp_flags: 0x%lx.\n", __func__, vha->vp_flags); 362 363 /* Check if Fw is ready to configure VP first */ 364 if (test_bit(VP_CONFIG_OK, &base_vha->vp_flags)) { 365 if (test_and_clear_bit(VP_IDX_ACQUIRED, &vha->vp_flags)) { 366 /* VP acquired. complete port configuration */ 367 ql_dbg(ql_dbg_dpc, vha, 0x4014, 368 "Configure VP scheduled.\n"); 369 qla24xx_configure_vp(vha); 370 ql_dbg(ql_dbg_dpc, vha, 0x4015, 371 "Configure VP end.\n"); 372 return 0; 373 } 374 } 375 376 if (test_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags)) { 377 if (atomic_read(&vha->loop_state) == LOOP_READY) { 378 qla24xx_process_purex_list(&vha->purex_list); 379 clear_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); 380 } 381 } 382 383 if (test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags)) { 384 ql_dbg(ql_dbg_dpc, vha, 0x4016, 385 "FCPort update scheduled.\n"); 386 qla2x00_update_fcports(vha); 387 clear_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags); 388 ql_dbg(ql_dbg_dpc, vha, 0x4017, 389 "FCPort update end.\n"); 390 } 391 392 if (test_bit(RELOGIN_NEEDED, &vha->dpc_flags) && 393 !test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) && 394 atomic_read(&vha->loop_state) != LOOP_DOWN) { 395 396 if (!vha->relogin_jif || 397 time_after_eq(jiffies, vha->relogin_jif)) { 398 vha->relogin_jif = jiffies + HZ; 399 clear_bit(RELOGIN_NEEDED, &vha->dpc_flags); 400 401 ql_dbg(ql_dbg_dpc, vha, 0x4018, 402 "Relogin needed scheduled.\n"); 403 qla24xx_post_relogin_work(vha); 404 } 405 } 406 407 if (test_and_clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) && 408 (!(test_and_set_bit(RESET_ACTIVE, &vha->dpc_flags)))) { 409 clear_bit(RESET_ACTIVE, &vha->dpc_flags); 410 } 411 412 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) { 413 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) { 414 ql_dbg(ql_dbg_dpc, vha, 0x401a, 415 "Loop resync scheduled.\n"); 416 qla2x00_loop_resync(vha); 417 clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags); 418 ql_dbg(ql_dbg_dpc, vha, 0x401b, 419 "Loop resync end.\n"); 420 } 421 } 422 423 ql_dbg(ql_dbg_dpc + ql_dbg_verbose, vha, 0x401c, 424 "Exiting %s.\n", __func__); 425 return 0; 426 } 427 428 void 429 qla2x00_do_dpc_all_vps(scsi_qla_host_t *vha) 430 { 431 struct qla_hw_data *ha = vha->hw; 432 scsi_qla_host_t *vp, *tvp; 433 unsigned long flags = 0; 434 435 if (vha->vp_idx) 436 return; 437 if (list_empty(&ha->vp_list)) 438 return; 439 440 clear_bit(VP_DPC_NEEDED, &vha->dpc_flags); 441 442 if (!(ha->current_topology & ISP_CFG_F)) 443 return; 444 445 spin_lock_irqsave(&ha->vport_slock, flags); 446 list_for_each_entry_safe(vp, tvp, &ha->vp_list, list) { 447 if (vp->vp_idx) { 448 atomic_inc(&vp->vref_count); 449 spin_unlock_irqrestore(&ha->vport_slock, flags); 450 451 qla2x00_do_dpc_vp(vp); 452 453 spin_lock_irqsave(&ha->vport_slock, flags); 454 atomic_dec(&vp->vref_count); 455 } 456 } 457 spin_unlock_irqrestore(&ha->vport_slock, flags); 458 } 459 460 int 461 qla24xx_vport_create_req_sanity_check(struct fc_vport *fc_vport) 462 { 463 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 464 struct qla_hw_data *ha = base_vha->hw; 465 scsi_qla_host_t *vha; 466 uint8_t port_name[WWN_SIZE]; 467 468 if (fc_vport->roles != FC_PORT_ROLE_FCP_INITIATOR) 469 return VPCERR_UNSUPPORTED; 470 471 /* Check up the F/W and H/W support NPIV */ 472 if (!ha->flags.npiv_supported) 473 return VPCERR_UNSUPPORTED; 474 475 /* Check up whether npiv supported switch presented */ 476 if (!(ha->switch_cap & FLOGI_MID_SUPPORT)) 477 return VPCERR_NO_FABRIC_SUPP; 478 479 /* Check up unique WWPN */ 480 u64_to_wwn(fc_vport->port_name, port_name); 481 if (!memcmp(port_name, base_vha->port_name, WWN_SIZE)) 482 return VPCERR_BAD_WWN; 483 vha = qla24xx_find_vhost_by_name(ha, port_name); 484 if (vha) 485 return VPCERR_BAD_WWN; 486 487 /* Check up max-npiv-supports */ 488 if (ha->num_vhosts > ha->max_npiv_vports) { 489 ql_dbg(ql_dbg_vport, vha, 0xa004, 490 "num_vhosts %ud is bigger " 491 "than max_npiv_vports %ud.\n", 492 ha->num_vhosts, ha->max_npiv_vports); 493 return VPCERR_UNSUPPORTED; 494 } 495 return 0; 496 } 497 498 scsi_qla_host_t * 499 qla24xx_create_vhost(struct fc_vport *fc_vport) 500 { 501 scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost); 502 struct qla_hw_data *ha = base_vha->hw; 503 scsi_qla_host_t *vha; 504 struct scsi_host_template *sht = &qla2xxx_driver_template; 505 struct Scsi_Host *host; 506 507 vha = qla2x00_create_host(sht, ha); 508 if (!vha) { 509 ql_log(ql_log_warn, vha, 0xa005, 510 "scsi_host_alloc() failed for vport.\n"); 511 return(NULL); 512 } 513 514 host = vha->host; 515 fc_vport->dd_data = vha; 516 /* New host info */ 517 u64_to_wwn(fc_vport->node_name, vha->node_name); 518 u64_to_wwn(fc_vport->port_name, vha->port_name); 519 520 vha->fc_vport = fc_vport; 521 vha->device_flags = 0; 522 vha->vp_idx = qla24xx_allocate_vp_id(vha); 523 if (vha->vp_idx > ha->max_npiv_vports) { 524 ql_dbg(ql_dbg_vport, vha, 0xa006, 525 "Couldn't allocate vp_id.\n"); 526 goto create_vhost_failed; 527 } 528 vha->mgmt_svr_loop_id = qla2x00_reserve_mgmt_server_loop_id(vha); 529 530 vha->dpc_flags = 0L; 531 ha->dpc_active = 0; 532 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 533 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 534 535 /* 536 * To fix the issue of processing a parent's RSCN for the vport before 537 * its SCR is complete. 538 */ 539 set_bit(VP_SCR_NEEDED, &vha->vp_flags); 540 atomic_set(&vha->loop_state, LOOP_DOWN); 541 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 542 543 qla2x00_start_timer(vha, WATCH_INTERVAL); 544 545 vha->req = base_vha->req; 546 vha->flags.nvme_enabled = base_vha->flags.nvme_enabled; 547 host->can_queue = base_vha->req->length + 128; 548 host->cmd_per_lun = 3; 549 if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) 550 host->max_cmd_len = 32; 551 else 552 host->max_cmd_len = MAX_CMDSZ; 553 host->max_channel = MAX_BUSES - 1; 554 host->max_lun = ql2xmaxlun; 555 host->unique_id = host->host_no; 556 host->max_id = ha->max_fibre_devices; 557 host->transportt = qla2xxx_transport_vport_template; 558 559 ql_dbg(ql_dbg_vport, vha, 0xa007, 560 "Detect vport hba %ld at address = %p.\n", 561 vha->host_no, vha); 562 563 vha->flags.init_done = 1; 564 565 mutex_lock(&ha->vport_lock); 566 set_bit(vha->vp_idx, ha->vp_idx_map); 567 ha->cur_vport_count++; 568 mutex_unlock(&ha->vport_lock); 569 570 return vha; 571 572 create_vhost_failed: 573 return NULL; 574 } 575 576 static void 577 qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req) 578 { 579 struct qla_hw_data *ha = vha->hw; 580 uint16_t que_id = req->id; 581 582 dma_free_coherent(&ha->pdev->dev, (req->length + 1) * 583 sizeof(request_t), req->ring, req->dma); 584 req->ring = NULL; 585 req->dma = 0; 586 if (que_id) { 587 ha->req_q_map[que_id] = NULL; 588 mutex_lock(&ha->vport_lock); 589 clear_bit(que_id, ha->req_qid_map); 590 mutex_unlock(&ha->vport_lock); 591 } 592 kfree(req->outstanding_cmds); 593 kfree(req); 594 req = NULL; 595 } 596 597 static void 598 qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 599 { 600 struct qla_hw_data *ha = vha->hw; 601 uint16_t que_id = rsp->id; 602 603 if (rsp->msix && rsp->msix->have_irq) { 604 free_irq(rsp->msix->vector, rsp->msix->handle); 605 rsp->msix->have_irq = 0; 606 rsp->msix->in_use = 0; 607 rsp->msix->handle = NULL; 608 } 609 dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) * 610 sizeof(response_t), rsp->ring, rsp->dma); 611 rsp->ring = NULL; 612 rsp->dma = 0; 613 if (que_id) { 614 ha->rsp_q_map[que_id] = NULL; 615 mutex_lock(&ha->vport_lock); 616 clear_bit(que_id, ha->rsp_qid_map); 617 mutex_unlock(&ha->vport_lock); 618 } 619 kfree(rsp); 620 rsp = NULL; 621 } 622 623 int 624 qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req) 625 { 626 int ret = QLA_SUCCESS; 627 628 if (req && vha->flags.qpairs_req_created) { 629 req->options |= BIT_0; 630 ret = qla25xx_init_req_que(vha, req); 631 if (ret != QLA_SUCCESS) 632 return QLA_FUNCTION_FAILED; 633 634 qla25xx_free_req_que(vha, req); 635 } 636 637 return ret; 638 } 639 640 int 641 qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp) 642 { 643 int ret = QLA_SUCCESS; 644 645 if (rsp && vha->flags.qpairs_rsp_created) { 646 rsp->options |= BIT_0; 647 ret = qla25xx_init_rsp_que(vha, rsp); 648 if (ret != QLA_SUCCESS) 649 return QLA_FUNCTION_FAILED; 650 651 qla25xx_free_rsp_que(vha, rsp); 652 } 653 654 return ret; 655 } 656 657 /* Delete all queues for a given vhost */ 658 int 659 qla25xx_delete_queues(struct scsi_qla_host *vha) 660 { 661 int cnt, ret = 0; 662 struct req_que *req = NULL; 663 struct rsp_que *rsp = NULL; 664 struct qla_hw_data *ha = vha->hw; 665 struct qla_qpair *qpair, *tqpair; 666 667 if (ql2xmqsupport || ql2xnvmeenable) { 668 list_for_each_entry_safe(qpair, tqpair, &vha->qp_list, 669 qp_list_elem) 670 qla2xxx_delete_qpair(vha, qpair); 671 } else { 672 /* Delete request queues */ 673 for (cnt = 1; cnt < ha->max_req_queues; cnt++) { 674 req = ha->req_q_map[cnt]; 675 if (req && test_bit(cnt, ha->req_qid_map)) { 676 ret = qla25xx_delete_req_que(vha, req); 677 if (ret != QLA_SUCCESS) { 678 ql_log(ql_log_warn, vha, 0x00ea, 679 "Couldn't delete req que %d.\n", 680 req->id); 681 return ret; 682 } 683 } 684 } 685 686 /* Delete response queues */ 687 for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) { 688 rsp = ha->rsp_q_map[cnt]; 689 if (rsp && test_bit(cnt, ha->rsp_qid_map)) { 690 ret = qla25xx_delete_rsp_que(vha, rsp); 691 if (ret != QLA_SUCCESS) { 692 ql_log(ql_log_warn, vha, 0x00eb, 693 "Couldn't delete rsp que %d.\n", 694 rsp->id); 695 return ret; 696 } 697 } 698 } 699 } 700 701 return ret; 702 } 703 704 int 705 qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options, 706 uint8_t vp_idx, uint16_t rid, int rsp_que, uint8_t qos, bool startqp) 707 { 708 int ret = 0; 709 struct req_que *req = NULL; 710 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 711 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 712 uint16_t que_id = 0; 713 device_reg_t *reg; 714 uint32_t cnt; 715 716 req = kzalloc(sizeof(struct req_que), GFP_KERNEL); 717 if (req == NULL) { 718 ql_log(ql_log_fatal, base_vha, 0x00d9, 719 "Failed to allocate memory for request queue.\n"); 720 goto failed; 721 } 722 723 req->length = REQUEST_ENTRY_CNT_24XX; 724 req->ring = dma_alloc_coherent(&ha->pdev->dev, 725 (req->length + 1) * sizeof(request_t), 726 &req->dma, GFP_KERNEL); 727 if (req->ring == NULL) { 728 ql_log(ql_log_fatal, base_vha, 0x00da, 729 "Failed to allocate memory for request_ring.\n"); 730 goto que_failed; 731 } 732 733 ret = qla2x00_alloc_outstanding_cmds(ha, req); 734 if (ret != QLA_SUCCESS) 735 goto que_failed; 736 737 mutex_lock(&ha->mq_lock); 738 que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues); 739 if (que_id >= ha->max_req_queues) { 740 mutex_unlock(&ha->mq_lock); 741 ql_log(ql_log_warn, base_vha, 0x00db, 742 "No resources to create additional request queue.\n"); 743 goto que_failed; 744 } 745 set_bit(que_id, ha->req_qid_map); 746 ha->req_q_map[que_id] = req; 747 req->rid = rid; 748 req->vp_idx = vp_idx; 749 req->qos = qos; 750 751 ql_dbg(ql_dbg_multiq, base_vha, 0xc002, 752 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 753 que_id, req->rid, req->vp_idx, req->qos); 754 ql_dbg(ql_dbg_init, base_vha, 0x00dc, 755 "queue_id=%d rid=%d vp_idx=%d qos=%d.\n", 756 que_id, req->rid, req->vp_idx, req->qos); 757 if (rsp_que < 0) 758 req->rsp = NULL; 759 else 760 req->rsp = ha->rsp_q_map[rsp_que]; 761 /* Use alternate PCI bus number */ 762 if (MSB(req->rid)) 763 options |= BIT_4; 764 /* Use alternate PCI devfn */ 765 if (LSB(req->rid)) 766 options |= BIT_5; 767 req->options = options; 768 769 ql_dbg(ql_dbg_multiq, base_vha, 0xc003, 770 "options=0x%x.\n", req->options); 771 ql_dbg(ql_dbg_init, base_vha, 0x00dd, 772 "options=0x%x.\n", req->options); 773 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) 774 req->outstanding_cmds[cnt] = NULL; 775 req->current_outstanding_cmd = 1; 776 777 req->ring_ptr = req->ring; 778 req->ring_index = 0; 779 req->cnt = req->length; 780 req->id = que_id; 781 reg = ISP_QUE_REG(ha, que_id); 782 req->req_q_in = ®->isp25mq.req_q_in; 783 req->req_q_out = ®->isp25mq.req_q_out; 784 req->max_q_depth = ha->req_q_map[0]->max_q_depth; 785 req->out_ptr = (uint16_t *)(req->ring + req->length); 786 mutex_unlock(&ha->mq_lock); 787 ql_dbg(ql_dbg_multiq, base_vha, 0xc004, 788 "ring_ptr=%p ring_index=%d, " 789 "cnt=%d id=%d max_q_depth=%d.\n", 790 req->ring_ptr, req->ring_index, 791 req->cnt, req->id, req->max_q_depth); 792 ql_dbg(ql_dbg_init, base_vha, 0x00de, 793 "ring_ptr=%p ring_index=%d, " 794 "cnt=%d id=%d max_q_depth=%d.\n", 795 req->ring_ptr, req->ring_index, req->cnt, 796 req->id, req->max_q_depth); 797 798 if (startqp) { 799 ret = qla25xx_init_req_que(base_vha, req); 800 if (ret != QLA_SUCCESS) { 801 ql_log(ql_log_fatal, base_vha, 0x00df, 802 "%s failed.\n", __func__); 803 mutex_lock(&ha->mq_lock); 804 clear_bit(que_id, ha->req_qid_map); 805 mutex_unlock(&ha->mq_lock); 806 goto que_failed; 807 } 808 vha->flags.qpairs_req_created = 1; 809 } 810 811 return req->id; 812 813 que_failed: 814 qla25xx_free_req_que(base_vha, req); 815 failed: 816 return 0; 817 } 818 819 static void qla_do_work(struct work_struct *work) 820 { 821 unsigned long flags; 822 struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work); 823 struct scsi_qla_host *vha = qpair->vha; 824 825 spin_lock_irqsave(&qpair->qp_lock, flags); 826 qla24xx_process_response_queue(vha, qpair->rsp); 827 spin_unlock_irqrestore(&qpair->qp_lock, flags); 828 829 } 830 831 /* create response queue */ 832 int 833 qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options, 834 uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair, bool startqp) 835 { 836 int ret = 0; 837 struct rsp_que *rsp = NULL; 838 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 839 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 840 uint16_t que_id = 0; 841 device_reg_t *reg; 842 843 rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL); 844 if (rsp == NULL) { 845 ql_log(ql_log_warn, base_vha, 0x0066, 846 "Failed to allocate memory for response queue.\n"); 847 goto failed; 848 } 849 850 rsp->length = RESPONSE_ENTRY_CNT_MQ; 851 rsp->ring = dma_alloc_coherent(&ha->pdev->dev, 852 (rsp->length + 1) * sizeof(response_t), 853 &rsp->dma, GFP_KERNEL); 854 if (rsp->ring == NULL) { 855 ql_log(ql_log_warn, base_vha, 0x00e1, 856 "Failed to allocate memory for response ring.\n"); 857 goto que_failed; 858 } 859 860 mutex_lock(&ha->mq_lock); 861 que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues); 862 if (que_id >= ha->max_rsp_queues) { 863 mutex_unlock(&ha->mq_lock); 864 ql_log(ql_log_warn, base_vha, 0x00e2, 865 "No resources to create additional request queue.\n"); 866 goto que_failed; 867 } 868 set_bit(que_id, ha->rsp_qid_map); 869 870 rsp->msix = qpair->msix; 871 872 ha->rsp_q_map[que_id] = rsp; 873 rsp->rid = rid; 874 rsp->vp_idx = vp_idx; 875 rsp->hw = ha; 876 ql_dbg(ql_dbg_init, base_vha, 0x00e4, 877 "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n", 878 que_id, rsp->rid, rsp->vp_idx, rsp->hw); 879 /* Use alternate PCI bus number */ 880 if (MSB(rsp->rid)) 881 options |= BIT_4; 882 /* Use alternate PCI devfn */ 883 if (LSB(rsp->rid)) 884 options |= BIT_5; 885 /* Enable MSIX handshake mode on for uncapable adapters */ 886 if (!IS_MSIX_NACK_CAPABLE(ha)) 887 options |= BIT_6; 888 889 /* Set option to indicate response queue creation */ 890 options |= BIT_1; 891 892 rsp->options = options; 893 rsp->id = que_id; 894 reg = ISP_QUE_REG(ha, que_id); 895 rsp->rsp_q_in = ®->isp25mq.rsp_q_in; 896 rsp->rsp_q_out = ®->isp25mq.rsp_q_out; 897 rsp->in_ptr = (uint16_t *)(rsp->ring + rsp->length); 898 mutex_unlock(&ha->mq_lock); 899 ql_dbg(ql_dbg_multiq, base_vha, 0xc00b, 900 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 901 rsp->options, rsp->id, rsp->rsp_q_in, 902 rsp->rsp_q_out); 903 ql_dbg(ql_dbg_init, base_vha, 0x00e5, 904 "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n", 905 rsp->options, rsp->id, rsp->rsp_q_in, 906 rsp->rsp_q_out); 907 908 ret = qla25xx_request_irq(ha, qpair, qpair->msix, 909 ha->flags.disable_msix_handshake ? 910 QLA_MSIX_QPAIR_MULTIQ_RSP_Q : QLA_MSIX_QPAIR_MULTIQ_RSP_Q_HS); 911 if (ret) 912 goto que_failed; 913 914 if (startqp) { 915 ret = qla25xx_init_rsp_que(base_vha, rsp); 916 if (ret != QLA_SUCCESS) { 917 ql_log(ql_log_fatal, base_vha, 0x00e7, 918 "%s failed.\n", __func__); 919 mutex_lock(&ha->mq_lock); 920 clear_bit(que_id, ha->rsp_qid_map); 921 mutex_unlock(&ha->mq_lock); 922 goto que_failed; 923 } 924 vha->flags.qpairs_rsp_created = 1; 925 } 926 rsp->req = NULL; 927 928 qla2x00_init_response_q_entries(rsp); 929 if (qpair->hw->wq) 930 INIT_WORK(&qpair->q_work, qla_do_work); 931 return rsp->id; 932 933 que_failed: 934 qla25xx_free_rsp_que(base_vha, rsp); 935 failed: 936 return 0; 937 } 938 939 static void qla_ctrlvp_sp_done(srb_t *sp, int res) 940 { 941 if (sp->comp) 942 complete(sp->comp); 943 /* don't free sp here. Let the caller do the free */ 944 } 945 946 /** 947 * qla24xx_control_vp() - Enable a virtual port for given host 948 * @vha: adapter block pointer 949 * @cmd: command type to be sent for enable virtual port 950 * 951 * Return: qla2xxx local function return status code. 952 */ 953 int qla24xx_control_vp(scsi_qla_host_t *vha, int cmd) 954 { 955 int rval = QLA_MEMORY_ALLOC_FAILED; 956 struct qla_hw_data *ha = vha->hw; 957 int vp_index = vha->vp_idx; 958 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); 959 DECLARE_COMPLETION_ONSTACK(comp); 960 srb_t *sp; 961 962 ql_dbg(ql_dbg_vport, vha, 0x10c1, 963 "Entered %s cmd %x index %d.\n", __func__, cmd, vp_index); 964 965 if (vp_index == 0 || vp_index >= ha->max_npiv_vports) 966 return QLA_PARAMETER_ERROR; 967 968 sp = qla2x00_get_sp(base_vha, NULL, GFP_KERNEL); 969 if (!sp) 970 return rval; 971 972 sp->type = SRB_CTRL_VP; 973 sp->name = "ctrl_vp"; 974 sp->comp = ∁ 975 sp->done = qla_ctrlvp_sp_done; 976 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; 977 qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); 978 sp->u.iocb_cmd.u.ctrlvp.cmd = cmd; 979 sp->u.iocb_cmd.u.ctrlvp.vp_index = vp_index; 980 981 rval = qla2x00_start_sp(sp); 982 if (rval != QLA_SUCCESS) { 983 ql_dbg(ql_dbg_async, vha, 0xffff, 984 "%s: %s Failed submission. %x.\n", 985 __func__, sp->name, rval); 986 goto done; 987 } 988 989 ql_dbg(ql_dbg_vport, vha, 0x113f, "%s hndl %x submitted\n", 990 sp->name, sp->handle); 991 992 wait_for_completion(&comp); 993 sp->comp = NULL; 994 995 rval = sp->rc; 996 switch (rval) { 997 case QLA_FUNCTION_TIMEOUT: 998 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Timeout. %x.\n", 999 __func__, sp->name, rval); 1000 break; 1001 case QLA_SUCCESS: 1002 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s done.\n", 1003 __func__, sp->name); 1004 break; 1005 default: 1006 ql_dbg(ql_dbg_vport, vha, 0xffff, "%s: %s Failed. %x.\n", 1007 __func__, sp->name, rval); 1008 break; 1009 } 1010 done: 1011 sp->free(sp); 1012 return rval; 1013 } 1014