drivers/scsi/qla2xxx/qla_mid.c

   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 = &reg->isp25mq.req_q_in;
 770         req->req_q_out = &reg->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 = &reg->isp25mq.rsp_q_in;
 883         rsp->rsp_q_out = &reg->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 = &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 }