drivers/scsi/qla2xxx/qla_init.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/vmalloc.h>
  13
  14 #include "qla_devtbl.h"
  15
  16 #ifdef CONFIG_SPARC
  17 #include <asm/prom.h>
  18 #endif
  19
  20 #include <target/target_core_base.h>
  21 #include "qla_target.h"
  22
  23 /*
  24 *  QLogic ISP2x00 Hardware Support Function Prototypes.
  25 */
  26 static int qla2x00_isp_firmware(scsi_qla_host_t *);
  27 static int qla2x00_setup_chip(scsi_qla_host_t *);
  28 static int qla2x00_init_rings(scsi_qla_host_t *);
  29 static int qla2x00_fw_ready(scsi_qla_host_t *);
  30 static int qla2x00_configure_hba(scsi_qla_host_t *);
  31 static int qla2x00_configure_loop(scsi_qla_host_t *);
  32 static int qla2x00_configure_local_loop(scsi_qla_host_t *);
  33 static int qla2x00_configure_fabric(scsi_qla_host_t *);
  34 static int qla2x00_find_all_fabric_devs(scsi_qla_host_t *, struct list_head *);
  35 static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
  36     uint16_t *);
  37
  38 static int qla2x00_restart_isp(scsi_qla_host_t *);
  39
  40 static struct qla_chip_state_84xx *qla84xx_get_chip(struct scsi_qla_host *);
  41 static int qla84xx_init_chip(scsi_qla_host_t *);
  42 static int qla25xx_init_queues(struct qla_hw_data *);
  43
  44 /* SRB Extensions ---------------------------------------------------------- */
  45
  46 void
  47 qla2x00_sp_timeout(unsigned long __data)
  48 {
  49         srb_t *sp = (srb_t *)__data;
  50         struct srb_iocb *iocb;
  51         fc_port_t *fcport = sp->fcport;
  52         struct qla_hw_data *ha = fcport->vha->hw;
  53         struct req_que *req;
  54         unsigned long flags;
  55
  56         spin_lock_irqsave(&ha->hardware_lock, flags);
  57         req = ha->req_q_map[0];
  58         req->outstanding_cmds[sp->handle] = NULL;
  59         iocb = &sp->u.iocb_cmd;
  60         iocb->timeout(sp);
  61         sp->free(fcport->vha, sp);
  62         spin_unlock_irqrestore(&ha->hardware_lock, flags);
  63 }
  64
  65 void
  66 qla2x00_sp_free(void *data, void *ptr)
  67 {
  68         srb_t *sp = (srb_t *)ptr;
  69         struct srb_iocb *iocb = &sp->u.iocb_cmd;
  70         struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
  71
  72         del_timer(&iocb->timer);
  73         qla2x00_rel_sp(vha, sp);
  74 }
  75
  76 /* Asynchronous Login/Logout Routines -------------------------------------- */
  77
  78 unsigned long
  79 qla2x00_get_async_timeout(struct scsi_qla_host *vha)
  80 {
  81         unsigned long tmo;
  82         struct qla_hw_data *ha = vha->hw;
  83
  84         /* Firmware should use switch negotiated r_a_tov for timeout. */
  85         tmo = ha->r_a_tov / 10 * 2;
  86         if (!IS_FWI2_CAPABLE(ha)) {
  87                 /*
  88                  * Except for earlier ISPs where the timeout is seeded from the
  89                  * initialization control block.
  90                  */
  91                 tmo = ha->login_timeout;
  92         }
  93         return tmo;
  94 }
  95
  96 static void
  97 qla2x00_async_iocb_timeout(void *data)
  98 {
  99         srb_t *sp = (srb_t *)data;
 100         fc_port_t *fcport = sp->fcport;
 101
 102         ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
 103             "Async-%s timeout - hdl=%x portid=%02x%02x%02x.\n",
 104             sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
 105             fcport->d_id.b.al_pa);
 106
 107         fcport->flags &= ~FCF_ASYNC_SENT;
 108         if (sp->type == SRB_LOGIN_CMD) {
 109                 struct srb_iocb *lio = &sp->u.iocb_cmd;
 110                 qla2x00_post_async_logout_work(fcport->vha, fcport, NULL);
 111                 /* Retry as needed. */
 112                 lio->u.logio.data[0] = MBS_COMMAND_ERROR;
 113                 lio->u.logio.data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
 114                         QLA_LOGIO_LOGIN_RETRIED : 0;
 115                 qla2x00_post_async_login_done_work(fcport->vha, fcport,
 116                         lio->u.logio.data);
 117         }
 118 }
 119
 120 static void
 121 qla2x00_async_login_sp_done(void *data, void *ptr, int res)
 122 {
 123         srb_t *sp = (srb_t *)ptr;
 124         struct srb_iocb *lio = &sp->u.iocb_cmd;
 125         struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
 126
 127         if (!test_bit(UNLOADING, &vha->dpc_flags))
 128                 qla2x00_post_async_login_done_work(sp->fcport->vha, sp->fcport,
 129                     lio->u.logio.data);
 130         sp->free(sp->fcport->vha, sp);
 131 }
 132
 133 int
 134 qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 135     uint16_t *data)
 136 {
 137         srb_t *sp;
 138         struct srb_iocb *lio;
 139         int rval;
 140
 141         rval = QLA_FUNCTION_FAILED;
 142         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 143         if (!sp)
 144                 goto done;
 145
 146         sp->type = SRB_LOGIN_CMD;
 147         sp->name = "login";
 148         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 149
 150         lio = &sp->u.iocb_cmd;
 151         lio->timeout = qla2x00_async_iocb_timeout;
 152         sp->done = qla2x00_async_login_sp_done;
 153         lio->u.logio.flags |= SRB_LOGIN_COND_PLOGI;
 154         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 155                 lio->u.logio.flags |= SRB_LOGIN_RETRIED;
 156         rval = qla2x00_start_sp(sp);
 157         if (rval != QLA_SUCCESS)
 158                 goto done_free_sp;
 159
 160         ql_dbg(ql_dbg_disc, vha, 0x2072,
 161             "Async-login - hdl=%x, loopid=%x portid=%02x%02x%02x "
 162             "retries=%d.\n", sp->handle, fcport->loop_id,
 163             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
 164             fcport->login_retry);
 165         return rval;
 166
 167 done_free_sp:
 168         sp->free(fcport->vha, sp);
 169 done:
 170         return rval;
 171 }
 172
 173 static void
 174 qla2x00_async_logout_sp_done(void *data, void *ptr, int res)
 175 {
 176         srb_t *sp = (srb_t *)ptr;
 177         struct srb_iocb *lio = &sp->u.iocb_cmd;
 178         struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
 179
 180         if (!test_bit(UNLOADING, &vha->dpc_flags))
 181                 qla2x00_post_async_logout_done_work(sp->fcport->vha, sp->fcport,
 182                     lio->u.logio.data);
 183         sp->free(sp->fcport->vha, sp);
 184 }
 185
 186 int
 187 qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 188 {
 189         srb_t *sp;
 190         struct srb_iocb *lio;
 191         int rval;
 192
 193         rval = QLA_FUNCTION_FAILED;
 194         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 195         if (!sp)
 196                 goto done;
 197
 198         sp->type = SRB_LOGOUT_CMD;
 199         sp->name = "logout";
 200         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 201
 202         lio = &sp->u.iocb_cmd;
 203         lio->timeout = qla2x00_async_iocb_timeout;
 204         sp->done = qla2x00_async_logout_sp_done;
 205         rval = qla2x00_start_sp(sp);
 206         if (rval != QLA_SUCCESS)
 207                 goto done_free_sp;
 208
 209         ql_dbg(ql_dbg_disc, vha, 0x2070,
 210             "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
 211             sp->handle, fcport->loop_id, fcport->d_id.b.domain,
 212             fcport->d_id.b.area, fcport->d_id.b.al_pa);
 213         return rval;
 214
 215 done_free_sp:
 216         sp->free(fcport->vha, sp);
 217 done:
 218         return rval;
 219 }
 220
 221 static void
 222 qla2x00_async_adisc_sp_done(void *data, void *ptr, int res)
 223 {
 224         srb_t *sp = (srb_t *)ptr;
 225         struct srb_iocb *lio = &sp->u.iocb_cmd;
 226         struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
 227
 228         if (!test_bit(UNLOADING, &vha->dpc_flags))
 229                 qla2x00_post_async_adisc_done_work(sp->fcport->vha, sp->fcport,
 230                     lio->u.logio.data);
 231         sp->free(sp->fcport->vha, sp);
 232 }
 233
 234 int
 235 qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 236     uint16_t *data)
 237 {
 238         srb_t *sp;
 239         struct srb_iocb *lio;
 240         int rval;
 241
 242         rval = QLA_FUNCTION_FAILED;
 243         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 244         if (!sp)
 245                 goto done;
 246
 247         sp->type = SRB_ADISC_CMD;
 248         sp->name = "adisc";
 249         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 250
 251         lio = &sp->u.iocb_cmd;
 252         lio->timeout = qla2x00_async_iocb_timeout;
 253         sp->done = qla2x00_async_adisc_sp_done;
 254         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 255                 lio->u.logio.flags |= SRB_LOGIN_RETRIED;
 256         rval = qla2x00_start_sp(sp);
 257         if (rval != QLA_SUCCESS)
 258                 goto done_free_sp;
 259
 260         ql_dbg(ql_dbg_disc, vha, 0x206f,
 261             "Async-adisc - hdl=%x loopid=%x portid=%02x%02x%02x.\n",
 262             sp->handle, fcport->loop_id, fcport->d_id.b.domain,
 263             fcport->d_id.b.area, fcport->d_id.b.al_pa);
 264         return rval;
 265
 266 done_free_sp:
 267         sp->free(fcport->vha, sp);
 268 done:
 269         return rval;
 270 }
 271
 272 static void
 273 qla2x00_async_tm_cmd_done(void *data, void *ptr, int res)
 274 {
 275         srb_t *sp = (srb_t *)ptr;
 276         struct srb_iocb *iocb = &sp->u.iocb_cmd;
 277         struct scsi_qla_host *vha = (scsi_qla_host_t *)data;
 278         uint32_t flags;
 279         uint16_t lun;
 280         int rval;
 281
 282         if (!test_bit(UNLOADING, &vha->dpc_flags)) {
 283                 flags = iocb->u.tmf.flags;
 284                 lun = (uint16_t)iocb->u.tmf.lun;
 285
 286                 /* Issue Marker IOCB */
 287                 rval = qla2x00_marker(vha, vha->hw->req_q_map[0],
 288                         vha->hw->rsp_q_map[0], sp->fcport->loop_id, lun,
 289                         flags == TCF_LUN_RESET ? MK_SYNC_ID_LUN : MK_SYNC_ID);
 290
 291                 if ((rval != QLA_SUCCESS) || iocb->u.tmf.data) {
 292                         ql_dbg(ql_dbg_taskm, vha, 0x8030,
 293                             "TM IOCB failed (%x).\n", rval);
 294                 }
 295         }
 296         sp->free(sp->fcport->vha, sp);
 297 }
 298
 299 int
 300 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t tm_flags, uint32_t lun,
 301         uint32_t tag)
 302 {
 303         struct scsi_qla_host *vha = fcport->vha;
 304         srb_t *sp;
 305         struct srb_iocb *tcf;
 306         int rval;
 307
 308         rval = QLA_FUNCTION_FAILED;
 309         sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
 310         if (!sp)
 311                 goto done;
 312
 313         sp->type = SRB_TM_CMD;
 314         sp->name = "tmf";
 315         qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
 316
 317         tcf = &sp->u.iocb_cmd;
 318         tcf->u.tmf.flags = tm_flags;
 319         tcf->u.tmf.lun = lun;
 320         tcf->u.tmf.data = tag;
 321         tcf->timeout = qla2x00_async_iocb_timeout;
 322         sp->done = qla2x00_async_tm_cmd_done;
 323
 324         rval = qla2x00_start_sp(sp);
 325         if (rval != QLA_SUCCESS)
 326                 goto done_free_sp;
 327
 328         ql_dbg(ql_dbg_taskm, vha, 0x802f,
 329             "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
 330             sp->handle, fcport->loop_id, fcport->d_id.b.domain,
 331             fcport->d_id.b.area, fcport->d_id.b.al_pa);
 332         return rval;
 333
 334 done_free_sp:
 335         sp->free(fcport->vha, sp);
 336 done:
 337         return rval;
 338 }
 339
 340 void
 341 qla2x00_async_login_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 342     uint16_t *data)
 343 {
 344         int rval;
 345
 346         switch (data[0]) {
 347         case MBS_COMMAND_COMPLETE:
 348                 /*
 349                  * Driver must validate login state - If PRLI not complete,
 350                  * force a relogin attempt via implicit LOGO, PLOGI, and PRLI
 351                  * requests.
 352                  */
 353                 rval = qla2x00_get_port_database(vha, fcport, 0);
 354                 if (rval == QLA_NOT_LOGGED_IN) {
 355                         fcport->flags &= ~FCF_ASYNC_SENT;
 356                         fcport->flags |= FCF_LOGIN_NEEDED;
 357                         set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 358                         break;
 359                 }
 360
 361                 if (rval != QLA_SUCCESS) {
 362                         qla2x00_post_async_logout_work(vha, fcport, NULL);
 363                         qla2x00_post_async_login_work(vha, fcport, NULL);
 364                         break;
 365                 }
 366                 if (fcport->flags & FCF_FCP2_DEVICE) {
 367                         qla2x00_post_async_adisc_work(vha, fcport, data);
 368                         break;
 369                 }
 370                 qla2x00_update_fcport(vha, fcport);
 371                 break;
 372         case MBS_COMMAND_ERROR:
 373                 fcport->flags &= ~FCF_ASYNC_SENT;
 374                 if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 375                         set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 376                 else
 377                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 378                 break;
 379         case MBS_PORT_ID_USED:
 380                 fcport->loop_id = data[1];
 381                 qla2x00_post_async_logout_work(vha, fcport, NULL);
 382                 qla2x00_post_async_login_work(vha, fcport, NULL);
 383                 break;
 384         case MBS_LOOP_ID_USED:
 385                 fcport->loop_id++;
 386                 rval = qla2x00_find_new_loop_id(vha, fcport);
 387                 if (rval != QLA_SUCCESS) {
 388                         fcport->flags &= ~FCF_ASYNC_SENT;
 389                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 390                         break;
 391                 }
 392                 qla2x00_post_async_login_work(vha, fcport, NULL);
 393                 break;
 394         }
 395         return;
 396 }
 397
 398 void
 399 qla2x00_async_logout_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 400     uint16_t *data)
 401 {
 402         qla2x00_mark_device_lost(vha, fcport, 1, 0);
 403         return;
 404 }
 405
 406 void
 407 qla2x00_async_adisc_done(struct scsi_qla_host *vha, fc_port_t *fcport,
 408     uint16_t *data)
 409 {
 410         if (data[0] == MBS_COMMAND_COMPLETE) {
 411                 qla2x00_update_fcport(vha, fcport);
 412
 413                 return;
 414         }
 415
 416         /* Retry login. */
 417         fcport->flags &= ~FCF_ASYNC_SENT;
 418         if (data[1] & QLA_LOGIO_LOGIN_RETRIED)
 419                 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
 420         else
 421                 qla2x00_mark_device_lost(vha, fcport, 1, 0);
 422
 423         return;
 424 }
 425
 426 /****************************************************************************/
 427 /*                QLogic ISP2x00 Hardware Support Functions.                */
 428 /****************************************************************************/
 429
 430 static int
 431 qla83xx_nic_core_fw_load(scsi_qla_host_t *vha)
 432 {
 433         int rval = QLA_SUCCESS;
 434         struct qla_hw_data *ha = vha->hw;
 435         uint32_t idc_major_ver, idc_minor_ver;
 436         uint16_t config[4];
 437
 438         qla83xx_idc_lock(vha, 0);
 439
 440         /* SV: TODO: Assign initialization timeout from
 441          * flash-info / other param
 442          */
 443         ha->fcoe_dev_init_timeout = QLA83XX_IDC_INITIALIZATION_TIMEOUT;
 444         ha->fcoe_reset_timeout = QLA83XX_IDC_RESET_ACK_TIMEOUT;
 445
 446         /* Set our fcoe function presence */
 447         if (__qla83xx_set_drv_presence(vha) != QLA_SUCCESS) {
 448                 ql_dbg(ql_dbg_p3p, vha, 0xb077,
 449                     "Error while setting DRV-Presence.\n");
 450                 rval = QLA_FUNCTION_FAILED;
 451                 goto exit;
 452         }
 453
 454         /* Decide the reset ownership */
 455         qla83xx_reset_ownership(vha);
 456
 457         /*
 458          * On first protocol driver load:
 459          * Init-Owner: Set IDC-Major-Version and Clear IDC-Lock-Recovery
 460          * register.
 461          * Others: Check compatibility with current IDC Major version.
 462          */
 463         qla83xx_rd_reg(vha, QLA83XX_IDC_MAJOR_VERSION, &idc_major_ver);
 464         if (ha->flags.nic_core_reset_owner) {
 465                 /* Set IDC Major version */
 466                 idc_major_ver = QLA83XX_SUPP_IDC_MAJOR_VERSION;
 467                 qla83xx_wr_reg(vha, QLA83XX_IDC_MAJOR_VERSION, idc_major_ver);
 468
 469                 /* Clearing IDC-Lock-Recovery register */
 470                 qla83xx_wr_reg(vha, QLA83XX_IDC_LOCK_RECOVERY, 0);
 471         } else if (idc_major_ver != QLA83XX_SUPP_IDC_MAJOR_VERSION) {
 472                 /*
 473                  * Clear further IDC participation if we are not compatible with
 474                  * the current IDC Major Version.
 475                  */
 476                 ql_log(ql_log_warn, vha, 0xb07d,
 477                     "Failing load, idc_major_ver=%d, expected_major_ver=%d.\n",
 478                     idc_major_ver, QLA83XX_SUPP_IDC_MAJOR_VERSION);
 479                 __qla83xx_clear_drv_presence(vha);
 480                 rval = QLA_FUNCTION_FAILED;
 481                 goto exit;
 482         }
 483         /* Each function sets its supported Minor version. */
 484         qla83xx_rd_reg(vha, QLA83XX_IDC_MINOR_VERSION, &idc_minor_ver);
 485         idc_minor_ver |= (QLA83XX_SUPP_IDC_MINOR_VERSION << (ha->portnum * 2));
 486         qla83xx_wr_reg(vha, QLA83XX_IDC_MINOR_VERSION, idc_minor_ver);
 487
 488         if (ha->flags.nic_core_reset_owner) {
 489                 memset(config, 0, sizeof(config));
 490                 if (!qla81xx_get_port_config(vha, config))
 491                         qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
 492                             QLA8XXX_DEV_READY);
 493         }
 494
 495         rval = qla83xx_idc_state_handler(vha);
 496
 497 exit:
 498         qla83xx_idc_unlock(vha, 0);
 499
 500         return rval;
 501 }
 502
 503 /*
 504 * qla2x00_initialize_adapter
 505 *      Initialize board.
 506 *
 507 * Input:
 508 *      ha = adapter block pointer.
 509 *
 510 * Returns:
 511 *      0 = success
 512 */
 513 int
 514 qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 515 {
 516         int     rval;
 517         struct qla_hw_data *ha = vha->hw;
 518         struct req_que *req = ha->req_q_map[0];
 519
 520         /* Clear adapter flags. */
 521         vha->flags.online = 0;
 522         ha->flags.chip_reset_done = 0;
 523         vha->flags.reset_active = 0;
 524         ha->flags.pci_channel_io_perm_failure = 0;
 525         ha->flags.eeh_busy = 0;
 526         ha->thermal_support = THERMAL_SUPPORT_I2C|THERMAL_SUPPORT_ISP;
 527         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 528         atomic_set(&vha->loop_state, LOOP_DOWN);
 529         vha->device_flags = DFLG_NO_CABLE;
 530         vha->dpc_flags = 0;
 531         vha->flags.management_server_logged_in = 0;
 532         vha->marker_needed = 0;
 533         ha->isp_abort_cnt = 0;
 534         ha->beacon_blink_led = 0;
 535
 536         set_bit(0, ha->req_qid_map);
 537         set_bit(0, ha->rsp_qid_map);
 538
 539         ql_dbg(ql_dbg_init, vha, 0x0040,
 540             "Configuring PCI space...\n");
 541         rval = ha->isp_ops->pci_config(vha);
 542         if (rval) {
 543                 ql_log(ql_log_warn, vha, 0x0044,
 544                     "Unable to configure PCI space.\n");
 545                 return (rval);
 546         }
 547
 548         ha->isp_ops->reset_chip(vha);
 549
 550         rval = qla2xxx_get_flash_info(vha);
 551         if (rval) {
 552                 ql_log(ql_log_fatal, vha, 0x004f,
 553                     "Unable to validate FLASH data.\n");
 554                 return (rval);
 555         }
 556
 557         ha->isp_ops->get_flash_version(vha, req->ring);
 558         ql_dbg(ql_dbg_init, vha, 0x0061,
 559             "Configure NVRAM parameters...\n");
 560
 561         ha->isp_ops->nvram_config(vha);
 562
 563         if (ha->flags.disable_serdes) {
 564                 /* Mask HBA via NVRAM settings? */
 565                 ql_log(ql_log_info, vha, 0x0077,
 566                     "Masking HBA WWPN "
 567                     "%02x%02x%02x%02x%02x%02x%02x%02x (via NVRAM).\n",
 568                     vha->port_name[0], vha->port_name[1],
 569                     vha->port_name[2], vha->port_name[3],
 570                     vha->port_name[4], vha->port_name[5],
 571                     vha->port_name[6], vha->port_name[7]);
 572                 return QLA_FUNCTION_FAILED;
 573         }
 574
 575         ql_dbg(ql_dbg_init, vha, 0x0078,
 576             "Verifying loaded RISC code...\n");
 577
 578         if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
 579                 rval = ha->isp_ops->chip_diag(vha);
 580                 if (rval)
 581                         return (rval);
 582                 rval = qla2x00_setup_chip(vha);
 583                 if (rval)
 584                         return (rval);
 585         }
 586
 587         if (IS_QLA84XX(ha)) {
 588                 ha->cs84xx = qla84xx_get_chip(vha);
 589                 if (!ha->cs84xx) {
 590                         ql_log(ql_log_warn, vha, 0x00d0,
 591                             "Unable to configure ISP84XX.\n");
 592                         return QLA_FUNCTION_FAILED;
 593                 }
 594         }
 595
 596         if (qla_ini_mode_enabled(vha))
 597                 rval = qla2x00_init_rings(vha);
 598
 599         ha->flags.chip_reset_done = 1;
 600
 601         if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
 602                 /* Issue verify 84xx FW IOCB to complete 84xx initialization */
 603                 rval = qla84xx_init_chip(vha);
 604                 if (rval != QLA_SUCCESS) {
 605                         ql_log(ql_log_warn, vha, 0x00d4,
 606                             "Unable to initialize ISP84XX.\n");
 607                 qla84xx_put_chip(vha);
 608                 }
 609         }
 610
 611         /* Load the NIC Core f/w if we are the first protocol driver. */
 612         if (IS_QLA8031(ha)) {
 613                 rval = qla83xx_nic_core_fw_load(vha);
 614                 if (rval)
 615                         ql_log(ql_log_warn, vha, 0x0124,
 616                             "Error in initializing NIC Core f/w.\n");
 617         }
 618
 619         if (IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))
 620                 qla24xx_read_fcp_prio_cfg(vha);
 621
 622         qla2x00_set_driver_version(vha, QLA2XXX_VERSION);
 623
 624         return (rval);
 625 }
 626
 627 /**
 628  * qla2100_pci_config() - Setup ISP21xx PCI configuration registers.
 629  * @ha: HA context
 630  *
 631  * Returns 0 on success.
 632  */
 633 int
 634 qla2100_pci_config(scsi_qla_host_t *vha)
 635 {
 636         uint16_t w;
 637         unsigned long flags;
 638         struct qla_hw_data *ha = vha->hw;
 639         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 640
 641         pci_set_master(ha->pdev);
 642         pci_try_set_mwi(ha->pdev);
 643
 644         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 645         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 646         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 647
 648         pci_disable_rom(ha->pdev);
 649
 650         /* Get PCI bus information. */
 651         spin_lock_irqsave(&ha->hardware_lock, flags);
 652         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 653         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 654
 655         return QLA_SUCCESS;
 656 }
 657
 658 /**
 659  * qla2300_pci_config() - Setup ISP23xx PCI configuration registers.
 660  * @ha: HA context
 661  *
 662  * Returns 0 on success.
 663  */
 664 int
 665 qla2300_pci_config(scsi_qla_host_t *vha)
 666 {
 667         uint16_t        w;
 668         unsigned long   flags = 0;
 669         uint32_t        cnt;
 670         struct qla_hw_data *ha = vha->hw;
 671         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 672
 673         pci_set_master(ha->pdev);
 674         pci_try_set_mwi(ha->pdev);
 675
 676         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 677         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 678
 679         if (IS_QLA2322(ha) || IS_QLA6322(ha))
 680                 w &= ~PCI_COMMAND_INTX_DISABLE;
 681         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 682
 683         /*
 684          * If this is a 2300 card and not 2312, reset the
 685          * COMMAND_INVALIDATE due to a bug in the 2300. Unfortunately,
 686          * the 2310 also reports itself as a 2300 so we need to get the
 687          * fb revision level -- a 6 indicates it really is a 2300 and
 688          * not a 2310.
 689          */
 690         if (IS_QLA2300(ha)) {
 691                 spin_lock_irqsave(&ha->hardware_lock, flags);
 692
 693                 /* Pause RISC. */
 694                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 695                 for (cnt = 0; cnt < 30000; cnt++) {
 696                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) != 0)
 697                                 break;
 698
 699                         udelay(10);
 700                 }
 701
 702                 /* Select FPM registers. */
 703                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 704                 RD_REG_WORD(&reg->ctrl_status);
 705
 706                 /* Get the fb rev level */
 707                 ha->fb_rev = RD_FB_CMD_REG(ha, reg);
 708
 709                 if (ha->fb_rev == FPM_2300)
 710                         pci_clear_mwi(ha->pdev);
 711
 712                 /* Deselect FPM registers. */
 713                 WRT_REG_WORD(&reg->ctrl_status, 0x0);
 714                 RD_REG_WORD(&reg->ctrl_status);
 715
 716                 /* Release RISC module. */
 717                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 718                 for (cnt = 0; cnt < 30000; cnt++) {
 719                         if ((RD_REG_WORD(&reg->hccr) & HCCR_RISC_PAUSE) == 0)
 720                                 break;
 721
 722                         udelay(10);
 723                 }
 724
 725                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
 726         }
 727
 728         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 729
 730         pci_disable_rom(ha->pdev);
 731
 732         /* Get PCI bus information. */
 733         spin_lock_irqsave(&ha->hardware_lock, flags);
 734         ha->pci_attr = RD_REG_WORD(&reg->ctrl_status);
 735         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 736
 737         return QLA_SUCCESS;
 738 }
 739
 740 /**
 741  * qla24xx_pci_config() - Setup ISP24xx PCI configuration registers.
 742  * @ha: HA context
 743  *
 744  * Returns 0 on success.
 745  */
 746 int
 747 qla24xx_pci_config(scsi_qla_host_t *vha)
 748 {
 749         uint16_t w;
 750         unsigned long flags = 0;
 751         struct qla_hw_data *ha = vha->hw;
 752         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 753
 754         pci_set_master(ha->pdev);
 755         pci_try_set_mwi(ha->pdev);
 756
 757         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 758         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 759         w &= ~PCI_COMMAND_INTX_DISABLE;
 760         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 761
 762         pci_write_config_byte(ha->pdev, PCI_LATENCY_TIMER, 0x80);
 763
 764         /* PCI-X -- adjust Maximum Memory Read Byte Count (2048). */
 765         if (pci_find_capability(ha->pdev, PCI_CAP_ID_PCIX))
 766                 pcix_set_mmrbc(ha->pdev, 2048);
 767
 768         /* PCIe -- adjust Maximum Read Request Size (2048). */
 769         if (pci_is_pcie(ha->pdev))
 770                 pcie_set_readrq(ha->pdev, 4096);
 771
 772         pci_disable_rom(ha->pdev);
 773
 774         ha->chip_revision = ha->pdev->revision;
 775
 776         /* Get PCI bus information. */
 777         spin_lock_irqsave(&ha->hardware_lock, flags);
 778         ha->pci_attr = RD_REG_DWORD(&reg->ctrl_status);
 779         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 780
 781         return QLA_SUCCESS;
 782 }
 783
 784 /**
 785  * qla25xx_pci_config() - Setup ISP25xx PCI configuration registers.
 786  * @ha: HA context
 787  *
 788  * Returns 0 on success.
 789  */
 790 int
 791 qla25xx_pci_config(scsi_qla_host_t *vha)
 792 {
 793         uint16_t w;
 794         struct qla_hw_data *ha = vha->hw;
 795
 796         pci_set_master(ha->pdev);
 797         pci_try_set_mwi(ha->pdev);
 798
 799         pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
 800         w |= (PCI_COMMAND_PARITY | PCI_COMMAND_SERR);
 801         w &= ~PCI_COMMAND_INTX_DISABLE;
 802         pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 803
 804         /* PCIe -- adjust Maximum Read Request Size (2048). */
 805         if (pci_is_pcie(ha->pdev))
 806                 pcie_set_readrq(ha->pdev, 4096);
 807
 808         pci_disable_rom(ha->pdev);
 809
 810         ha->chip_revision = ha->pdev->revision;
 811
 812         return QLA_SUCCESS;
 813 }
 814
 815 /**
 816  * qla2x00_isp_firmware() - Choose firmware image.
 817  * @ha: HA context
 818  *
 819  * Returns 0 on success.
 820  */
 821 static int
 822 qla2x00_isp_firmware(scsi_qla_host_t *vha)
 823 {
 824         int  rval;
 825         uint16_t loop_id, topo, sw_cap;
 826         uint8_t domain, area, al_pa;
 827         struct qla_hw_data *ha = vha->hw;
 828
 829         /* Assume loading risc code */
 830         rval = QLA_FUNCTION_FAILED;
 831
 832         if (ha->flags.disable_risc_code_load) {
 833                 ql_log(ql_log_info, vha, 0x0079, "RISC CODE NOT loaded.\n");
 834
 835                 /* Verify checksum of loaded RISC code. */
 836                 rval = qla2x00_verify_checksum(vha, ha->fw_srisc_address);
 837                 if (rval == QLA_SUCCESS) {
 838                         /* And, verify we are not in ROM code. */
 839                         rval = qla2x00_get_adapter_id(vha, &loop_id, &al_pa,
 840                             &area, &domain, &topo, &sw_cap);
 841                 }
 842         }
 843
 844         if (rval)
 845                 ql_dbg(ql_dbg_init, vha, 0x007a,
 846                     "**** Load RISC code ****.\n");
 847
 848         return (rval);
 849 }
 850
 851 /**
 852  * qla2x00_reset_chip() - Reset ISP chip.
 853  * @ha: HA context
 854  *
 855  * Returns 0 on success.
 856  */
 857 void
 858 qla2x00_reset_chip(scsi_qla_host_t *vha)
 859 {
 860         unsigned long   flags = 0;
 861         struct qla_hw_data *ha = vha->hw;
 862         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 863         uint32_t        cnt;
 864         uint16_t        cmd;
 865
 866         if (unlikely(pci_channel_offline(ha->pdev)))
 867                 return;
 868
 869         ha->isp_ops->disable_intrs(ha);
 870
 871         spin_lock_irqsave(&ha->hardware_lock, flags);
 872
 873         /* Turn off master enable */
 874         cmd = 0;
 875         pci_read_config_word(ha->pdev, PCI_COMMAND, &cmd);
 876         cmd &= ~PCI_COMMAND_MASTER;
 877         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 878
 879         if (!IS_QLA2100(ha)) {
 880                 /* Pause RISC. */
 881                 WRT_REG_WORD(&reg->hccr, HCCR_PAUSE_RISC);
 882                 if (IS_QLA2200(ha) || IS_QLA2300(ha)) {
 883                         for (cnt = 0; cnt < 30000; cnt++) {
 884                                 if ((RD_REG_WORD(&reg->hccr) &
 885                                     HCCR_RISC_PAUSE) != 0)
 886                                         break;
 887                                 udelay(100);
 888                         }
 889                 } else {
 890                         RD_REG_WORD(&reg->hccr);        /* PCI Posting. */
 891                         udelay(10);
 892                 }
 893
 894                 /* Select FPM registers. */
 895                 WRT_REG_WORD(&reg->ctrl_status, 0x20);
 896                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 897
 898                 /* FPM Soft Reset. */
 899                 WRT_REG_WORD(&reg->fpm_diag_config, 0x100);
 900                 RD_REG_WORD(&reg->fpm_diag_config);     /* PCI Posting. */
 901
 902                 /* Toggle Fpm Reset. */
 903                 if (!IS_QLA2200(ha)) {
 904                         WRT_REG_WORD(&reg->fpm_diag_config, 0x0);
 905                         RD_REG_WORD(&reg->fpm_diag_config); /* PCI Posting. */
 906                 }
 907
 908                 /* Select frame buffer registers. */
 909                 WRT_REG_WORD(&reg->ctrl_status, 0x10);
 910                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 911
 912                 /* Reset frame buffer FIFOs. */
 913                 if (IS_QLA2200(ha)) {
 914                         WRT_FB_CMD_REG(ha, reg, 0xa000);
 915                         RD_FB_CMD_REG(ha, reg);         /* PCI Posting. */
 916                 } else {
 917                         WRT_FB_CMD_REG(ha, reg, 0x00fc);
 918
 919                         /* Read back fb_cmd until zero or 3 seconds max */
 920                         for (cnt = 0; cnt < 3000; cnt++) {
 921                                 if ((RD_FB_CMD_REG(ha, reg) & 0xff) == 0)
 922                                         break;
 923                                 udelay(100);
 924                         }
 925                 }
 926
 927                 /* Select RISC module registers. */
 928                 WRT_REG_WORD(&reg->ctrl_status, 0);
 929                 RD_REG_WORD(&reg->ctrl_status);         /* PCI Posting. */
 930
 931                 /* Reset RISC processor. */
 932                 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 933                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 934
 935                 /* Release RISC processor. */
 936                 WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 937                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 938         }
 939
 940         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 941         WRT_REG_WORD(&reg->hccr, HCCR_CLR_HOST_INT);
 942
 943         /* Reset ISP chip. */
 944         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
 945
 946         /* Wait for RISC to recover from reset. */
 947         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 948                 /*
 949                  * It is necessary to for a delay here since the card doesn't
 950                  * respond to PCI reads during a reset. On some architectures
 951                  * this will result in an MCA.
 952                  */
 953                 udelay(20);
 954                 for (cnt = 30000; cnt; cnt--) {
 955                         if ((RD_REG_WORD(&reg->ctrl_status) &
 956                             CSR_ISP_SOFT_RESET) == 0)
 957                                 break;
 958                         udelay(100);
 959                 }
 960         } else
 961                 udelay(10);
 962
 963         /* Reset RISC processor. */
 964         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 965
 966         WRT_REG_WORD(&reg->semaphore, 0);
 967
 968         /* Release RISC processor. */
 969         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
 970         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
 971
 972         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
 973                 for (cnt = 0; cnt < 30000; cnt++) {
 974                         if (RD_MAILBOX_REG(ha, reg, 0) != MBS_BUSY)
 975                                 break;
 976
 977                         udelay(100);
 978                 }
 979         } else
 980                 udelay(100);
 981
 982         /* Turn on master enable */
 983         cmd |= PCI_COMMAND_MASTER;
 984         pci_write_config_word(ha->pdev, PCI_COMMAND, cmd);
 985
 986         /* Disable RISC pause on FPM parity error. */
 987         if (!IS_QLA2100(ha)) {
 988                 WRT_REG_WORD(&reg->hccr, HCCR_DISABLE_PARITY_PAUSE);
 989                 RD_REG_WORD(&reg->hccr);                /* PCI Posting. */
 990         }
 991
 992         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 993 }
 994
 995 /**
 996  * qla81xx_reset_mpi() - Reset's MPI FW via Write MPI Register MBC.
 997  *
 998  * Returns 0 on success.
 999  */
1000 static int
1001 qla81xx_reset_mpi(scsi_qla_host_t *vha)
1002 {
1003         uint16_t mb[4] = {0x1010, 0, 1, 0};
1004
1005         if (!IS_QLA81XX(vha->hw))
1006                 return QLA_SUCCESS;
1007
1008         return qla81xx_write_mpi_register(vha, mb);
1009 }
1010
1011 /**
1012  * qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
1013  * @ha: HA context
1014  *
1015  * Returns 0 on success.
1016  */
1017 static inline void
1018 qla24xx_reset_risc(scsi_qla_host_t *vha)
1019 {
1020         unsigned long flags = 0;
1021         struct qla_hw_data *ha = vha->hw;
1022         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1023         uint32_t cnt, d2;
1024         uint16_t wd;
1025         static int abts_cnt; /* ISP abort retry counts */
1026
1027         spin_lock_irqsave(&ha->hardware_lock, flags);
1028
1029         /* Reset RISC. */
1030         WRT_REG_DWORD(&reg->ctrl_status, CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
1031         for (cnt = 0; cnt < 30000; cnt++) {
1032                 if ((RD_REG_DWORD(&reg->ctrl_status) & CSRX_DMA_ACTIVE) == 0)
1033                         break;
1034
1035                 udelay(10);
1036         }
1037
1038         WRT_REG_DWORD(&reg->ctrl_status,
1039             CSRX_ISP_SOFT_RESET|CSRX_DMA_SHUTDOWN|MWB_4096_BYTES);
1040         pci_read_config_word(ha->pdev, PCI_COMMAND, &wd);
1041
1042         udelay(100);
1043         /* Wait for firmware to complete NVRAM accesses. */
1044         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1045         for (cnt = 10000 ; cnt && d2; cnt--) {
1046                 udelay(5);
1047                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1048                 barrier();
1049         }
1050
1051         /* Wait for soft-reset to complete. */
1052         d2 = RD_REG_DWORD(&reg->ctrl_status);
1053         for (cnt = 6000000 ; cnt && (d2 & CSRX_ISP_SOFT_RESET); cnt--) {
1054                 udelay(5);
1055                 d2 = RD_REG_DWORD(&reg->ctrl_status);
1056                 barrier();
1057         }
1058
1059         /* If required, do an MPI FW reset now */
1060         if (test_and_clear_bit(MPI_RESET_NEEDED, &vha->dpc_flags)) {
1061                 if (qla81xx_reset_mpi(vha) != QLA_SUCCESS) {
1062                         if (++abts_cnt < 5) {
1063                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1064                                 set_bit(MPI_RESET_NEEDED, &vha->dpc_flags);
1065                         } else {
1066                                 /*
1067                                  * We exhausted the ISP abort retries. We have to
1068                                  * set the board offline.
1069                                  */
1070                                 abts_cnt = 0;
1071                                 vha->flags.online = 0;
1072                         }
1073                 }
1074         }
1075
1076         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
1077         RD_REG_DWORD(&reg->hccr);
1078
1079         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
1080         RD_REG_DWORD(&reg->hccr);
1081
1082         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_RESET);
1083         RD_REG_DWORD(&reg->hccr);
1084
1085         d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1086         for (cnt = 6000000 ; cnt && d2; cnt--) {
1087                 udelay(5);
1088                 d2 = (uint32_t) RD_REG_WORD(&reg->mailbox0);
1089                 barrier();
1090         }
1091
1092         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1093
1094         if (IS_NOPOLLING_TYPE(ha))
1095                 ha->isp_ops->enable_intrs(ha);
1096 }
1097
1098 static void
1099 qla25xx_read_risc_sema_reg(scsi_qla_host_t *vha, uint32_t *data)
1100 {
1101         struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
1102
1103         WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
1104         *data = RD_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET);
1105
1106 }
1107
1108 static void
1109 qla25xx_write_risc_sema_reg(scsi_qla_host_t *vha, uint32_t data)
1110 {
1111         struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24;
1112
1113         WRT_REG_DWORD(&reg->iobase_addr, RISC_REGISTER_BASE_OFFSET);
1114         WRT_REG_DWORD(&reg->iobase_window + RISC_REGISTER_WINDOW_OFFET, data);
1115 }
1116
1117 static void
1118 qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
1119 {
1120         struct qla_hw_data *ha = vha->hw;
1121         uint32_t wd32 = 0;
1122         uint delta_msec = 100;
1123         uint elapsed_msec = 0;
1124         uint timeout_msec;
1125         ulong n;
1126
1127         if (!IS_QLA25XX(ha) && !IS_QLA2031(ha))
1128                 return;
1129
1130 attempt:
1131         timeout_msec = TIMEOUT_SEMAPHORE;
1132         n = timeout_msec / delta_msec;
1133         while (n--) {
1134                 qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_SET);
1135                 qla25xx_read_risc_sema_reg(vha, &wd32);
1136                 if (wd32 & RISC_SEMAPHORE)
1137                         break;
1138                 msleep(delta_msec);
1139                 elapsed_msec += delta_msec;
1140                 if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
1141                         goto force;
1142         }
1143
1144         if (!(wd32 & RISC_SEMAPHORE))
1145                 goto force;
1146
1147         if (!(wd32 & RISC_SEMAPHORE_FORCE))
1148                 goto acquired;
1149
1150         qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_CLR);
1151         timeout_msec = TIMEOUT_SEMAPHORE_FORCE;
1152         n = timeout_msec / delta_msec;
1153         while (n--) {
1154                 qla25xx_read_risc_sema_reg(vha, &wd32);
1155                 if (!(wd32 & RISC_SEMAPHORE_FORCE))
1156                         break;
1157                 msleep(delta_msec);
1158                 elapsed_msec += delta_msec;
1159                 if (elapsed_msec > TIMEOUT_TOTAL_ELAPSED)
1160                         goto force;
1161         }
1162
1163         if (wd32 & RISC_SEMAPHORE_FORCE)
1164                 qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_CLR);
1165
1166         goto attempt;
1167
1168 force:
1169         qla25xx_write_risc_sema_reg(vha, RISC_SEMAPHORE_FORCE_SET);
1170
1171 acquired:
1172         return;
1173 }
1174
1175 /**
1176  * qla24xx_reset_chip() - Reset ISP24xx chip.
1177  * @ha: HA context
1178  *
1179  * Returns 0 on success.
1180  */
1181 void
1182 qla24xx_reset_chip(scsi_qla_host_t *vha)
1183 {
1184         struct qla_hw_data *ha = vha->hw;
1185
1186         if (pci_channel_offline(ha->pdev) &&
1187             ha->flags.pci_channel_io_perm_failure) {
1188                 return;
1189         }
1190
1191         ha->isp_ops->disable_intrs(ha);
1192
1193         qla25xx_manipulate_risc_semaphore(vha);
1194
1195         /* Perform RISC reset. */
1196         qla24xx_reset_risc(vha);
1197 }
1198
1199 /**
1200  * qla2x00_chip_diag() - Test chip for proper operation.
1201  * @ha: HA context
1202  *
1203  * Returns 0 on success.
1204  */
1205 int
1206 qla2x00_chip_diag(scsi_qla_host_t *vha)
1207 {
1208         int             rval;
1209         struct qla_hw_data *ha = vha->hw;
1210         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1211         unsigned long   flags = 0;
1212         uint16_t        data;
1213         uint32_t        cnt;
1214         uint16_t        mb[5];
1215         struct req_que *req = ha->req_q_map[0];
1216
1217         /* Assume a failed state */
1218         rval = QLA_FUNCTION_FAILED;
1219
1220         ql_dbg(ql_dbg_init, vha, 0x007b,
1221             "Testing device at %lx.\n", (u_long)&reg->flash_address);
1222
1223         spin_lock_irqsave(&ha->hardware_lock, flags);
1224
1225         /* Reset ISP chip. */
1226         WRT_REG_WORD(&reg->ctrl_status, CSR_ISP_SOFT_RESET);
1227
1228         /*
1229          * We need to have a delay here since the card will not respond while
1230          * in reset causing an MCA on some architectures.
1231          */
1232         udelay(20);
1233         data = qla2x00_debounce_register(&reg->ctrl_status);
1234         for (cnt = 6000000 ; cnt && (data & CSR_ISP_SOFT_RESET); cnt--) {
1235                 udelay(5);
1236                 data = RD_REG_WORD(&reg->ctrl_status);
1237                 barrier();
1238         }
1239
1240         if (!cnt)
1241                 goto chip_diag_failed;
1242
1243         ql_dbg(ql_dbg_init, vha, 0x007c,
1244             "Reset register cleared by chip reset.\n");
1245
1246         /* Reset RISC processor. */
1247         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
1248         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
1249
1250         /* Workaround for QLA2312 PCI parity error */
1251         if (IS_QLA2100(ha) || IS_QLA2200(ha) || IS_QLA2300(ha)) {
1252                 data = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 0));
1253                 for (cnt = 6000000; cnt && (data == MBS_BUSY); cnt--) {
1254                         udelay(5);
1255                         data = RD_MAILBOX_REG(ha, reg, 0);
1256                         barrier();
1257                 }
1258         } else
1259                 udelay(10);
1260
1261         if (!cnt)
1262                 goto chip_diag_failed;
1263
1264         /* Check product ID of chip */
1265         ql_dbg(ql_dbg_init, vha, 0x007d, "Checking product Id of chip.\n");
1266
1267         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
1268         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
1269         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
1270         mb[4] = qla2x00_debounce_register(MAILBOX_REG(ha, reg, 4));
1271         if (mb[1] != PROD_ID_1 || (mb[2] != PROD_ID_2 && mb[2] != PROD_ID_2a) ||
1272             mb[3] != PROD_ID_3) {
1273                 ql_log(ql_log_warn, vha, 0x0062,
1274                     "Wrong product ID = 0x%x,0x%x,0x%x.\n",
1275                     mb[1], mb[2], mb[3]);
1276
1277                 goto chip_diag_failed;
1278         }
1279         ha->product_id[0] = mb[1];
1280         ha->product_id[1] = mb[2];
1281         ha->product_id[2] = mb[3];
1282         ha->product_id[3] = mb[4];
1283
1284         /* Adjust fw RISC transfer size */
1285         if (req->length > 1024)
1286                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE * 1024;
1287         else
1288                 ha->fw_transfer_size = REQUEST_ENTRY_SIZE *
1289                     req->length;
1290
1291         if (IS_QLA2200(ha) &&
1292             RD_MAILBOX_REG(ha, reg, 7) == QLA2200A_RISC_ROM_VER) {
1293                 /* Limit firmware transfer size with a 2200A */
1294                 ql_dbg(ql_dbg_init, vha, 0x007e, "Found QLA2200A Chip.\n");
1295
1296                 ha->device_type |= DT_ISP2200A;
1297                 ha->fw_transfer_size = 128;
1298         }
1299
1300         /* Wrap Incoming Mailboxes Test. */
1301         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1302
1303         ql_dbg(ql_dbg_init, vha, 0x007f, "Checking mailboxes.\n");
1304         rval = qla2x00_mbx_reg_test(vha);
1305         if (rval)
1306                 ql_log(ql_log_warn, vha, 0x0080,
1307                     "Failed mailbox send register test.\n");
1308         else
1309                 /* Flag a successful rval */
1310                 rval = QLA_SUCCESS;
1311         spin_lock_irqsave(&ha->hardware_lock, flags);
1312
1313 chip_diag_failed:
1314         if (rval)
1315                 ql_log(ql_log_info, vha, 0x0081,
1316                     "Chip diagnostics **** FAILED ****.\n");
1317
1318         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1319
1320         return (rval);
1321 }
1322
1323 /**
1324  * qla24xx_chip_diag() - Test ISP24xx for proper operation.
1325  * @ha: HA context
1326  *
1327  * Returns 0 on success.
1328  */
1329 int
1330 qla24xx_chip_diag(scsi_qla_host_t *vha)
1331 {
1332         int rval;
1333         struct qla_hw_data *ha = vha->hw;
1334         struct req_que *req = ha->req_q_map[0];
1335
1336         if (IS_QLA82XX(ha))
1337                 return QLA_SUCCESS;
1338
1339         ha->fw_transfer_size = REQUEST_ENTRY_SIZE * req->length;
1340
1341         rval = qla2x00_mbx_reg_test(vha);
1342         if (rval) {
1343                 ql_log(ql_log_warn, vha, 0x0082,
1344                     "Failed mailbox send register test.\n");
1345         } else {
1346                 /* Flag a successful rval */
1347                 rval = QLA_SUCCESS;
1348         }
1349
1350         return rval;
1351 }
1352
1353 void
1354 qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
1355 {
1356         int rval;
1357         uint32_t dump_size, fixed_size, mem_size, req_q_size, rsp_q_size,
1358             eft_size, fce_size, mq_size;
1359         dma_addr_t tc_dma;
1360         void *tc;
1361         struct qla_hw_data *ha = vha->hw;
1362         struct req_que *req = ha->req_q_map[0];
1363         struct rsp_que *rsp = ha->rsp_q_map[0];
1364
1365         if (ha->fw_dump) {
1366                 ql_dbg(ql_dbg_init, vha, 0x00bd,
1367                     "Firmware dump already allocated.\n");
1368                 return;
1369         }
1370
1371         ha->fw_dumped = 0;
1372         fixed_size = mem_size = eft_size = fce_size = mq_size = 0;
1373         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1374                 fixed_size = sizeof(struct qla2100_fw_dump);
1375         } else if (IS_QLA23XX(ha)) {
1376                 fixed_size = offsetof(struct qla2300_fw_dump, data_ram);
1377                 mem_size = (ha->fw_memory_size - 0x11000 + 1) *
1378                     sizeof(uint16_t);
1379         } else if (IS_FWI2_CAPABLE(ha)) {
1380                 if (IS_QLA83XX(ha))
1381                         fixed_size = offsetof(struct qla83xx_fw_dump, ext_mem);
1382                 else if (IS_QLA81XX(ha))
1383                         fixed_size = offsetof(struct qla81xx_fw_dump, ext_mem);
1384                 else if (IS_QLA25XX(ha))
1385                         fixed_size = offsetof(struct qla25xx_fw_dump, ext_mem);
1386                 else
1387                         fixed_size = offsetof(struct qla24xx_fw_dump, ext_mem);
1388                 mem_size = (ha->fw_memory_size - 0x100000 + 1) *
1389                     sizeof(uint32_t);
1390                 if (ha->mqenable) {
1391                         if (!IS_QLA83XX(ha))
1392                                 mq_size = sizeof(struct qla2xxx_mq_chain);
1393                         /*
1394                          * Allocate maximum buffer size for all queues.
1395                          * Resizing must be done at end-of-dump processing.
1396                          */
1397                         mq_size += ha->max_req_queues *
1398                             (req->length * sizeof(request_t));
1399                         mq_size += ha->max_rsp_queues *
1400                             (rsp->length * sizeof(response_t));
1401                 }
1402                 if (ha->tgt.atio_q_length)
1403                         mq_size += ha->tgt.atio_q_length * sizeof(request_t);
1404                 /* Allocate memory for Fibre Channel Event Buffer. */
1405                 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
1406                         goto try_eft;
1407
1408                 tc = dma_alloc_coherent(&ha->pdev->dev, FCE_SIZE, &tc_dma,
1409                     GFP_KERNEL);
1410                 if (!tc) {
1411                         ql_log(ql_log_warn, vha, 0x00be,
1412                             "Unable to allocate (%d KB) for FCE.\n",
1413                             FCE_SIZE / 1024);
1414                         goto try_eft;
1415                 }
1416
1417                 memset(tc, 0, FCE_SIZE);
1418                 rval = qla2x00_enable_fce_trace(vha, tc_dma, FCE_NUM_BUFFERS,
1419                     ha->fce_mb, &ha->fce_bufs);
1420                 if (rval) {
1421                         ql_log(ql_log_warn, vha, 0x00bf,
1422                             "Unable to initialize FCE (%d).\n", rval);
1423                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, tc,
1424                             tc_dma);
1425                         ha->flags.fce_enabled = 0;
1426                         goto try_eft;
1427                 }
1428                 ql_dbg(ql_dbg_init, vha, 0x00c0,
1429                     "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
1430
1431                 fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
1432                 ha->flags.fce_enabled = 1;
1433                 ha->fce_dma = tc_dma;
1434                 ha->fce = tc;
1435 try_eft:
1436                 /* Allocate memory for Extended Trace Buffer. */
1437                 tc = dma_alloc_coherent(&ha->pdev->dev, EFT_SIZE, &tc_dma,
1438                     GFP_KERNEL);
1439                 if (!tc) {
1440                         ql_log(ql_log_warn, vha, 0x00c1,
1441                             "Unable to allocate (%d KB) for EFT.\n",
1442                             EFT_SIZE / 1024);
1443                         goto cont_alloc;
1444                 }
1445
1446                 memset(tc, 0, EFT_SIZE);
1447                 rval = qla2x00_enable_eft_trace(vha, tc_dma, EFT_NUM_BUFFERS);
1448                 if (rval) {
1449                         ql_log(ql_log_warn, vha, 0x00c2,
1450                             "Unable to initialize EFT (%d).\n", rval);
1451                         dma_free_coherent(&ha->pdev->dev, EFT_SIZE, tc,
1452                             tc_dma);
1453                         goto cont_alloc;
1454                 }
1455                 ql_dbg(ql_dbg_init, vha, 0x00c3,
1456                     "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
1457
1458                 eft_size = EFT_SIZE;
1459                 ha->eft_dma = tc_dma;
1460                 ha->eft = tc;
1461         }
1462 cont_alloc:
1463         req_q_size = req->length * sizeof(request_t);
1464         rsp_q_size = rsp->length * sizeof(response_t);
1465
1466         dump_size = offsetof(struct qla2xxx_fw_dump, isp);
1467         dump_size += fixed_size + mem_size + req_q_size + rsp_q_size + eft_size;
1468         ha->chain_offset = dump_size;
1469         dump_size += mq_size + fce_size;
1470
1471         ha->fw_dump = vmalloc(dump_size);
1472         if (!ha->fw_dump) {
1473                 ql_log(ql_log_warn, vha, 0x00c4,
1474                     "Unable to allocate (%d KB) for firmware dump.\n",
1475                     dump_size / 1024);
1476
1477                 if (ha->fce) {
1478                         dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
1479                             ha->fce_dma);
1480                         ha->fce = NULL;
1481                         ha->fce_dma = 0;
1482                 }
1483
1484                 if (ha->eft) {
1485                         dma_free_coherent(&ha->pdev->dev, eft_size, ha->eft,
1486                             ha->eft_dma);
1487                         ha->eft = NULL;
1488                         ha->eft_dma = 0;
1489                 }
1490                 return;
1491         }
1492         ql_dbg(ql_dbg_init, vha, 0x00c5,
1493             "Allocated (%d KB) for firmware dump.\n", dump_size / 1024);
1494
1495         ha->fw_dump_len = dump_size;
1496         ha->fw_dump->signature[0] = 'Q';
1497         ha->fw_dump->signature[1] = 'L';
1498         ha->fw_dump->signature[2] = 'G';
1499         ha->fw_dump->signature[3] = 'C';
1500         ha->fw_dump->version = __constant_htonl(1);
1501
1502         ha->fw_dump->fixed_size = htonl(fixed_size);
1503         ha->fw_dump->mem_size = htonl(mem_size);
1504         ha->fw_dump->req_q_size = htonl(req_q_size);
1505         ha->fw_dump->rsp_q_size = htonl(rsp_q_size);
1506
1507         ha->fw_dump->eft_size = htonl(eft_size);
1508         ha->fw_dump->eft_addr_l = htonl(LSD(ha->eft_dma));
1509         ha->fw_dump->eft_addr_h = htonl(MSD(ha->eft_dma));
1510
1511         ha->fw_dump->header_size =
1512             htonl(offsetof(struct qla2xxx_fw_dump, isp));
1513 }
1514
1515 static int
1516 qla81xx_mpi_sync(scsi_qla_host_t *vha)
1517 {
1518 #define MPS_MASK        0xe0
1519         int rval;
1520         uint16_t dc;
1521         uint32_t dw;
1522
1523         if (!IS_QLA81XX(vha->hw))
1524                 return QLA_SUCCESS;
1525
1526         rval = qla2x00_write_ram_word(vha, 0x7c00, 1);
1527         if (rval != QLA_SUCCESS) {
1528                 ql_log(ql_log_warn, vha, 0x0105,
1529                     "Unable to acquire semaphore.\n");
1530                 goto done;
1531         }
1532
1533         pci_read_config_word(vha->hw->pdev, 0x54, &dc);
1534         rval = qla2x00_read_ram_word(vha, 0x7a15, &dw);
1535         if (rval != QLA_SUCCESS) {
1536                 ql_log(ql_log_warn, vha, 0x0067, "Unable to read sync.\n");
1537                 goto done_release;
1538         }
1539
1540         dc &= MPS_MASK;
1541         if (dc == (dw & MPS_MASK))
1542                 goto done_release;
1543
1544         dw &= ~MPS_MASK;
1545         dw |= dc;
1546         rval = qla2x00_write_ram_word(vha, 0x7a15, dw);
1547         if (rval != QLA_SUCCESS) {
1548                 ql_log(ql_log_warn, vha, 0x0114, "Unable to gain sync.\n");
1549         }
1550
1551 done_release:
1552         rval = qla2x00_write_ram_word(vha, 0x7c00, 0);
1553         if (rval != QLA_SUCCESS) {
1554                 ql_log(ql_log_warn, vha, 0x006d,
1555                     "Unable to release semaphore.\n");
1556         }
1557
1558 done:
1559         return rval;
1560 }
1561
1562 int
1563 qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
1564 {
1565         /* Don't try to reallocate the array */
1566         if (req->outstanding_cmds)
1567                 return QLA_SUCCESS;
1568
1569         if (!IS_FWI2_CAPABLE(ha) || (ha->mqiobase &&
1570             (ql2xmultique_tag || ql2xmaxqueues > 1)))
1571                 req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
1572         else {
1573                 if (ha->fw_xcb_count <= ha->fw_iocb_count)
1574                         req->num_outstanding_cmds = ha->fw_xcb_count;
1575                 else
1576                         req->num_outstanding_cmds = ha->fw_iocb_count;
1577         }
1578
1579         req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
1580             req->num_outstanding_cmds, GFP_KERNEL);
1581
1582         if (!req->outstanding_cmds) {
1583                 /*
1584                  * Try to allocate a minimal size just so we can get through
1585                  * initialization.
1586                  */
1587                 req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
1588                 req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
1589                     req->num_outstanding_cmds, GFP_KERNEL);
1590
1591                 if (!req->outstanding_cmds) {
1592                         ql_log(ql_log_fatal, NULL, 0x0126,
1593                             "Failed to allocate memory for "
1594                             "outstanding_cmds for req_que %p.\n", req);
1595                         req->num_outstanding_cmds = 0;
1596                         return QLA_FUNCTION_FAILED;
1597                 }
1598         }
1599
1600         return QLA_SUCCESS;
1601 }
1602
1603 /**
1604  * qla2x00_setup_chip() - Load and start RISC firmware.
1605  * @ha: HA context
1606  *
1607  * Returns 0 on success.
1608  */
1609 static int
1610 qla2x00_setup_chip(scsi_qla_host_t *vha)
1611 {
1612         int rval;
1613         uint32_t srisc_address = 0;
1614         struct qla_hw_data *ha = vha->hw;
1615         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1616         unsigned long flags;
1617         uint16_t fw_major_version;
1618
1619         if (IS_QLA82XX(ha)) {
1620                 rval = ha->isp_ops->load_risc(vha, &srisc_address);
1621                 if (rval == QLA_SUCCESS) {
1622                         qla2x00_stop_firmware(vha);
1623                         goto enable_82xx_npiv;
1624                 } else
1625                         goto failed;
1626         }
1627
1628         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1629                 /* Disable SRAM, Instruction RAM and GP RAM parity.  */
1630                 spin_lock_irqsave(&ha->hardware_lock, flags);
1631                 WRT_REG_WORD(&reg->hccr, (HCCR_ENABLE_PARITY + 0x0));
1632                 RD_REG_WORD(&reg->hccr);
1633                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1634         }
1635
1636         qla81xx_mpi_sync(vha);
1637
1638         /* Load firmware sequences */
1639         rval = ha->isp_ops->load_risc(vha, &srisc_address);
1640         if (rval == QLA_SUCCESS) {
1641                 ql_dbg(ql_dbg_init, vha, 0x00c9,
1642                     "Verifying Checksum of loaded RISC code.\n");
1643
1644                 rval = qla2x00_verify_checksum(vha, srisc_address);
1645                 if (rval == QLA_SUCCESS) {
1646                         /* Start firmware execution. */
1647                         ql_dbg(ql_dbg_init, vha, 0x00ca,
1648                             "Starting firmware.\n");
1649
1650                         rval = qla2x00_execute_fw(vha, srisc_address);
1651                         /* Retrieve firmware information. */
1652                         if (rval == QLA_SUCCESS) {
1653 enable_82xx_npiv:
1654                                 fw_major_version = ha->fw_major_version;
1655                                 if (IS_QLA82XX(ha))
1656                                         qla82xx_check_md_needed(vha);
1657                                 else
1658                                         rval = qla2x00_get_fw_version(vha);
1659                                 if (rval != QLA_SUCCESS)
1660                                         goto failed;
1661                                 ha->flags.npiv_supported = 0;
1662                                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1663                                          (ha->fw_attributes & BIT_2)) {
1664                                         ha->flags.npiv_supported = 1;
1665                                         if ((!ha->max_npiv_vports) ||
1666                                             ((ha->max_npiv_vports + 1) %
1667                                             MIN_MULTI_ID_FABRIC))
1668                                                 ha->max_npiv_vports =
1669                                                     MIN_MULTI_ID_FABRIC - 1;
1670                                 }
1671                                 qla2x00_get_resource_cnts(vha, NULL,
1672                                     &ha->fw_xcb_count, NULL, &ha->fw_iocb_count,
1673                                     &ha->max_npiv_vports, NULL);
1674
1675                                 /*
1676                                  * Allocate the array of outstanding commands
1677                                  * now that we know the firmware resources.
1678                                  */
1679                                 rval = qla2x00_alloc_outstanding_cmds(ha,
1680                                     vha->req);
1681                                 if (rval != QLA_SUCCESS)
1682                                         goto failed;
1683
1684                                 if (!fw_major_version && ql2xallocfwdump
1685                                     && !IS_QLA82XX(ha))
1686                                         qla2x00_alloc_fw_dump(vha);
1687                         }
1688                 } else {
1689                         ql_log(ql_log_fatal, vha, 0x00cd,
1690                             "ISP Firmware failed checksum.\n");
1691                         goto failed;
1692                 }
1693         } else
1694                 goto failed;
1695
1696         if (!IS_FWI2_CAPABLE(ha) && !IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1697                 /* Enable proper parity. */
1698                 spin_lock_irqsave(&ha->hardware_lock, flags);
1699                 if (IS_QLA2300(ha))
1700                         /* SRAM parity */
1701                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x1);
1702                 else
1703                         /* SRAM, Instruction RAM and GP RAM parity */
1704                         WRT_REG_WORD(&reg->hccr, HCCR_ENABLE_PARITY + 0x7);
1705                 RD_REG_WORD(&reg->hccr);
1706                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1707         }
1708
1709         if (IS_QLA83XX(ha))
1710                 goto skip_fac_check;
1711
1712         if (rval == QLA_SUCCESS && IS_FAC_REQUIRED(ha)) {
1713                 uint32_t size;
1714
1715                 rval = qla81xx_fac_get_sector_size(vha, &size);
1716                 if (rval == QLA_SUCCESS) {
1717                         ha->flags.fac_supported = 1;
1718                         ha->fdt_block_size = size << 2;
1719                 } else {
1720                         ql_log(ql_log_warn, vha, 0x00ce,
1721                             "Unsupported FAC firmware (%d.%02d.%02d).\n",
1722                             ha->fw_major_version, ha->fw_minor_version,
1723                             ha->fw_subminor_version);
1724 skip_fac_check:
1725                         if (IS_QLA83XX(ha)) {
1726                                 ha->flags.fac_supported = 0;
1727                                 rval = QLA_SUCCESS;
1728                         }
1729                 }
1730         }
1731 failed:
1732         if (rval) {
1733                 ql_log(ql_log_fatal, vha, 0x00cf,
1734                     "Setup chip ****FAILED****.\n");
1735         }
1736
1737         return (rval);
1738 }
1739
1740 /**
1741  * qla2x00_init_response_q_entries() - Initializes response queue entries.
1742  * @ha: HA context
1743  *
1744  * Beginning of request ring has initialization control block already built
1745  * by nvram config routine.
1746  *
1747  * Returns 0 on success.
1748  */
1749 void
1750 qla2x00_init_response_q_entries(struct rsp_que *rsp)
1751 {
1752         uint16_t cnt;
1753         response_t *pkt;
1754
1755         rsp->ring_ptr = rsp->ring;
1756         rsp->ring_index    = 0;
1757         rsp->status_srb = NULL;
1758         pkt = rsp->ring_ptr;
1759         for (cnt = 0; cnt < rsp->length; cnt++) {
1760                 pkt->signature = RESPONSE_PROCESSED;
1761                 pkt++;
1762         }
1763 }
1764
1765 /**
1766  * qla2x00_update_fw_options() - Read and process firmware options.
1767  * @ha: HA context
1768  *
1769  * Returns 0 on success.
1770  */
1771 void
1772 qla2x00_update_fw_options(scsi_qla_host_t *vha)
1773 {
1774         uint16_t swing, emphasis, tx_sens, rx_sens;
1775         struct qla_hw_data *ha = vha->hw;
1776
1777         memset(ha->fw_options, 0, sizeof(ha->fw_options));
1778         qla2x00_get_fw_options(vha, ha->fw_options);
1779
1780         if (IS_QLA2100(ha) || IS_QLA2200(ha))
1781                 return;
1782
1783         /* Serial Link options. */
1784         ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0115,
1785             "Serial link options.\n");
1786         ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0109,
1787             (uint8_t *)&ha->fw_seriallink_options,
1788             sizeof(ha->fw_seriallink_options));
1789
1790         ha->fw_options[1] &= ~FO1_SET_EMPHASIS_SWING;
1791         if (ha->fw_seriallink_options[3] & BIT_2) {
1792                 ha->fw_options[1] |= FO1_SET_EMPHASIS_SWING;
1793
1794                 /*  1G settings */
1795                 swing = ha->fw_seriallink_options[2] & (BIT_2 | BIT_1 | BIT_0);
1796                 emphasis = (ha->fw_seriallink_options[2] &
1797                     (BIT_4 | BIT_3)) >> 3;
1798                 tx_sens = ha->fw_seriallink_options[0] &
1799                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1800                 rx_sens = (ha->fw_seriallink_options[0] &
1801                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1802                 ha->fw_options[10] = (emphasis << 14) | (swing << 8);
1803                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1804                         if (rx_sens == 0x0)
1805                                 rx_sens = 0x3;
1806                         ha->fw_options[10] |= (tx_sens << 4) | rx_sens;
1807                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1808                         ha->fw_options[10] |= BIT_5 |
1809                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1810                             (tx_sens & (BIT_1 | BIT_0));
1811
1812                 /*  2G settings */
1813                 swing = (ha->fw_seriallink_options[2] &
1814                     (BIT_7 | BIT_6 | BIT_5)) >> 5;
1815                 emphasis = ha->fw_seriallink_options[3] & (BIT_1 | BIT_0);
1816                 tx_sens = ha->fw_seriallink_options[1] &
1817                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
1818                 rx_sens = (ha->fw_seriallink_options[1] &
1819                     (BIT_7 | BIT_6 | BIT_5 | BIT_4)) >> 4;
1820                 ha->fw_options[11] = (emphasis << 14) | (swing << 8);
1821                 if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
1822                         if (rx_sens == 0x0)
1823                                 rx_sens = 0x3;
1824                         ha->fw_options[11] |= (tx_sens << 4) | rx_sens;
1825                 } else if (IS_QLA2322(ha) || IS_QLA6322(ha))
1826                         ha->fw_options[11] |= BIT_5 |
1827                             ((rx_sens & (BIT_1 | BIT_0)) << 2) |
1828                             (tx_sens & (BIT_1 | BIT_0));
1829         }
1830
1831         /* FCP2 options. */
1832         /*  Return command IOCBs without waiting for an ABTS to complete. */
1833         ha->fw_options[3] |= BIT_13;
1834
1835         /* LED scheme. */
1836         if (ha->flags.enable_led_scheme)
1837                 ha->fw_options[2] |= BIT_12;
1838
1839         /* Detect ISP6312. */
1840         if (IS_QLA6312(ha))
1841                 ha->fw_options[2] |= BIT_13;
1842
1843         /* Update firmware options. */
1844         qla2x00_set_fw_options(vha, ha->fw_options);
1845 }
1846
1847 void
1848 qla24xx_update_fw_options(scsi_qla_host_t *vha)
1849 {
1850         int rval;
1851         struct qla_hw_data *ha = vha->hw;
1852
1853         if (IS_QLA82XX(ha))
1854                 return;
1855
1856         /* Update Serial Link options. */
1857         if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
1858                 return;
1859
1860         rval = qla2x00_set_serdes_params(vha,
1861             le16_to_cpu(ha->fw_seriallink_options24[1]),
1862             le16_to_cpu(ha->fw_seriallink_options24[2]),
1863             le16_to_cpu(ha->fw_seriallink_options24[3]));
1864         if (rval != QLA_SUCCESS) {
1865                 ql_log(ql_log_warn, vha, 0x0104,
1866                     "Unable to update Serial Link options (%x).\n", rval);
1867         }
1868 }
1869
1870 void
1871 qla2x00_config_rings(struct scsi_qla_host *vha)
1872 {
1873         struct qla_hw_data *ha = vha->hw;
1874         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1875         struct req_que *req = ha->req_q_map[0];
1876         struct rsp_que *rsp = ha->rsp_q_map[0];
1877
1878         /* Setup ring parameters in initialization control block. */
1879         ha->init_cb->request_q_outpointer = __constant_cpu_to_le16(0);
1880         ha->init_cb->response_q_inpointer = __constant_cpu_to_le16(0);
1881         ha->init_cb->request_q_length = cpu_to_le16(req->length);
1882         ha->init_cb->response_q_length = cpu_to_le16(rsp->length);
1883         ha->init_cb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1884         ha->init_cb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1885         ha->init_cb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1886         ha->init_cb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1887
1888         WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), 0);
1889         WRT_REG_WORD(ISP_REQ_Q_OUT(ha, reg), 0);
1890         WRT_REG_WORD(ISP_RSP_Q_IN(ha, reg), 0);
1891         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), 0);
1892         RD_REG_WORD(ISP_RSP_Q_OUT(ha, reg));            /* PCI Posting. */
1893 }
1894
1895 void
1896 qla24xx_config_rings(struct scsi_qla_host *vha)
1897 {
1898         struct qla_hw_data *ha = vha->hw;
1899         device_reg_t __iomem *reg = ISP_QUE_REG(ha, 0);
1900         struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
1901         struct qla_msix_entry *msix;
1902         struct init_cb_24xx *icb;
1903         uint16_t rid = 0;
1904         struct req_que *req = ha->req_q_map[0];
1905         struct rsp_que *rsp = ha->rsp_q_map[0];
1906
1907         /* Setup ring parameters in initialization control block. */
1908         icb = (struct init_cb_24xx *)ha->init_cb;
1909         icb->request_q_outpointer = __constant_cpu_to_le16(0);
1910         icb->response_q_inpointer = __constant_cpu_to_le16(0);
1911         icb->request_q_length = cpu_to_le16(req->length);
1912         icb->response_q_length = cpu_to_le16(rsp->length);
1913         icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
1914         icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
1915         icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
1916         icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
1917
1918         /* Setup ATIO queue dma pointers for target mode */
1919         icb->atio_q_inpointer = __constant_cpu_to_le16(0);
1920         icb->atio_q_length = cpu_to_le16(ha->tgt.atio_q_length);
1921         icb->atio_q_address[0] = cpu_to_le32(LSD(ha->tgt.atio_dma));
1922         icb->atio_q_address[1] = cpu_to_le32(MSD(ha->tgt.atio_dma));
1923
1924         if (ha->mqenable || IS_QLA83XX(ha)) {
1925                 icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
1926                 icb->rid = __constant_cpu_to_le16(rid);
1927                 if (ha->flags.msix_enabled) {
1928                         msix = &ha->msix_entries[1];
1929                         ql_dbg(ql_dbg_init, vha, 0x00fd,
1930                             "Registering vector 0x%x for base que.\n",
1931                             msix->entry);
1932                         icb->msix = cpu_to_le16(msix->entry);
1933                 }
1934                 /* Use alternate PCI bus number */
1935                 if (MSB(rid))
1936                         icb->firmware_options_2 |=
1937                                 __constant_cpu_to_le32(BIT_19);
1938                 /* Use alternate PCI devfn */
1939                 if (LSB(rid))
1940                         icb->firmware_options_2 |=
1941                                 __constant_cpu_to_le32(BIT_18);
1942
1943                 /* Use Disable MSIX Handshake mode for capable adapters */
1944                 if ((ha->fw_attributes & BIT_6) && (IS_MSIX_NACK_CAPABLE(ha)) &&
1945                     (ha->flags.msix_enabled)) {
1946                         icb->firmware_options_2 &=
1947                                 __constant_cpu_to_le32(~BIT_22);
1948                         ha->flags.disable_msix_handshake = 1;
1949                         ql_dbg(ql_dbg_init, vha, 0x00fe,
1950                             "MSIX Handshake Disable Mode turned on.\n");
1951                 } else {
1952                         icb->firmware_options_2 |=
1953                                 __constant_cpu_to_le32(BIT_22);
1954                 }
1955                 icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_23);
1956
1957                 WRT_REG_DWORD(&reg->isp25mq.req_q_in, 0);
1958                 WRT_REG_DWORD(&reg->isp25mq.req_q_out, 0);
1959                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_in, 0);
1960                 WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, 0);
1961         } else {
1962                 WRT_REG_DWORD(&reg->isp24.req_q_in, 0);
1963                 WRT_REG_DWORD(&reg->isp24.req_q_out, 0);
1964                 WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
1965                 WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
1966         }
1967         qlt_24xx_config_rings(vha);
1968
1969         /* PCI posting */
1970         RD_REG_DWORD(&ioreg->hccr);
1971 }
1972
1973 /**
1974  * qla2x00_init_rings() - Initializes firmware.
1975  * @ha: HA context
1976  *
1977  * Beginning of request ring has initialization control block already built
1978  * by nvram config routine.
1979  *
1980  * Returns 0 on success.
1981  */
1982 static int
1983 qla2x00_init_rings(scsi_qla_host_t *vha)
1984 {
1985         int     rval;
1986         unsigned long flags = 0;
1987         int cnt, que;
1988         struct qla_hw_data *ha = vha->hw;
1989         struct req_que *req;
1990         struct rsp_que *rsp;
1991         struct mid_init_cb_24xx *mid_init_cb =
1992             (struct mid_init_cb_24xx *) ha->init_cb;
1993
1994         spin_lock_irqsave(&ha->hardware_lock, flags);
1995
1996         /* Clear outstanding commands array. */
1997         for (que = 0; que < ha->max_req_queues; que++) {
1998                 req = ha->req_q_map[que];
1999                 if (!req)
2000                         continue;
2001                 for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
2002                         req->outstanding_cmds[cnt] = NULL;
2003
2004                 req->current_outstanding_cmd = 1;
2005
2006                 /* Initialize firmware. */
2007                 req->ring_ptr  = req->ring;
2008                 req->ring_index    = 0;
2009                 req->cnt      = req->length;
2010         }
2011
2012         for (que = 0; que < ha->max_rsp_queues; que++) {
2013                 rsp = ha->rsp_q_map[que];
2014                 if (!rsp)
2015                         continue;
2016                 /* Initialize response queue entries */
2017                 qla2x00_init_response_q_entries(rsp);
2018         }
2019
2020         ha->tgt.atio_ring_ptr = ha->tgt.atio_ring;
2021         ha->tgt.atio_ring_index = 0;
2022         /* Initialize ATIO queue entries */
2023         qlt_init_atio_q_entries(vha);
2024
2025         ha->isp_ops->config_rings(vha);
2026
2027         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2028
2029         /* Update any ISP specific firmware options before initialization. */
2030         ha->isp_ops->update_fw_options(vha);
2031
2032         ql_dbg(ql_dbg_init, vha, 0x00d1, "Issue init firmware.\n");
2033
2034         if (ha->flags.npiv_supported) {
2035                 if (ha->operating_mode == LOOP && !IS_CNA_CAPABLE(ha))
2036                         ha->max_npiv_vports = MIN_MULTI_ID_FABRIC - 1;
2037                 mid_init_cb->count = cpu_to_le16(ha->max_npiv_vports);
2038         }
2039
2040         if (IS_FWI2_CAPABLE(ha)) {
2041                 mid_init_cb->options = __constant_cpu_to_le16(BIT_1);
2042                 mid_init_cb->init_cb.execution_throttle =
2043                     cpu_to_le16(ha->fw_xcb_count);
2044         }
2045
2046         rval = qla2x00_init_firmware(vha, ha->init_cb_size);
2047         if (rval) {
2048                 ql_log(ql_log_fatal, vha, 0x00d2,
2049                     "Init Firmware **** FAILED ****.\n");
2050         } else {
2051                 ql_dbg(ql_dbg_init, vha, 0x00d3,
2052                     "Init Firmware -- success.\n");
2053         }
2054
2055         return (rval);
2056 }
2057
2058 /**
2059  * qla2x00_fw_ready() - Waits for firmware ready.
2060  * @ha: HA context
2061  *
2062  * Returns 0 on success.
2063  */
2064 static int
2065 qla2x00_fw_ready(scsi_qla_host_t *vha)
2066 {
2067         int             rval;
2068         unsigned long   wtime, mtime, cs84xx_time;
2069         uint16_t        min_wait;       /* Minimum wait time if loop is down */
2070         uint16_t        wait_time;      /* Wait time if loop is coming ready */
2071         uint16_t        state[5];
2072         struct qla_hw_data *ha = vha->hw;
2073
2074         rval = QLA_SUCCESS;
2075
2076         /* 20 seconds for loop down. */
2077         min_wait = 20;
2078
2079         /*
2080          * Firmware should take at most one RATOV to login, plus 5 seconds for
2081          * our own processing.
2082          */
2083         if ((wait_time = (ha->retry_count*ha->login_timeout) + 5) < min_wait) {
2084                 wait_time = min_wait;
2085         }
2086
2087         /* Min wait time if loop down */
2088         mtime = jiffies + (min_wait * HZ);
2089
2090         /* wait time before firmware ready */
2091         wtime = jiffies + (wait_time * HZ);
2092
2093         /* Wait for ISP to finish LIP */
2094         if (!vha->flags.init_done)
2095                 ql_log(ql_log_info, vha, 0x801e,
2096                     "Waiting for LIP to complete.\n");
2097
2098         do {
2099                 memset(state, -1, sizeof(state));
2100                 rval = qla2x00_get_firmware_state(vha, state);
2101                 if (rval == QLA_SUCCESS) {
2102                         if (state[0] < FSTATE_LOSS_OF_SYNC) {
2103                                 vha->device_flags &= ~DFLG_NO_CABLE;
2104                         }
2105                         if (IS_QLA84XX(ha) && state[0] != FSTATE_READY) {
2106                                 ql_dbg(ql_dbg_taskm, vha, 0x801f,
2107                                     "fw_state=%x 84xx=%x.\n", state[0],
2108                                     state[2]);
2109                                 if ((state[2] & FSTATE_LOGGED_IN) &&
2110                                      (state[2] & FSTATE_WAITING_FOR_VERIFY)) {
2111                                         ql_dbg(ql_dbg_taskm, vha, 0x8028,
2112                                             "Sending verify iocb.\n");
2113
2114                                         cs84xx_time = jiffies;
2115                                         rval = qla84xx_init_chip(vha);
2116                                         if (rval != QLA_SUCCESS) {
2117                                                 ql_log(ql_log_warn,
2118                                                     vha, 0x8007,
2119                                                     "Init chip failed.\n");
2120                                                 break;
2121                                         }
2122
2123                                         /* Add time taken to initialize. */
2124                                         cs84xx_time = jiffies - cs84xx_time;
2125                                         wtime += cs84xx_time;
2126                                         mtime += cs84xx_time;
2127                                         ql_dbg(ql_dbg_taskm, vha, 0x8008,
2128                                             "Increasing wait time by %ld. "
2129                                             "New time %ld.\n", cs84xx_time,
2130                                             wtime);
2131                                 }
2132                         } else if (state[0] == FSTATE_READY) {
2133                                 ql_dbg(ql_dbg_taskm, vha, 0x8037,
2134                                     "F/W Ready - OK.\n");
2135
2136                                 qla2x00_get_retry_cnt(vha, &ha->retry_count,
2137                                     &ha->login_timeout, &ha->r_a_tov);
2138
2139                                 rval = QLA_SUCCESS;
2140                                 break;
2141                         }
2142
2143                         rval = QLA_FUNCTION_FAILED;
2144
2145                         if (atomic_read(&vha->loop_down_timer) &&
2146                             state[0] != FSTATE_READY) {
2147                                 /* Loop down. Timeout on min_wait for states
2148                                  * other than Wait for Login.
2149                                  */
2150                                 if (time_after_eq(jiffies, mtime)) {
2151                                         ql_log(ql_log_info, vha, 0x8038,
2152                                             "Cable is unplugged...\n");
2153
2154                                         vha->device_flags |= DFLG_NO_CABLE;
2155                                         break;
2156                                 }
2157                         }
2158                 } else {
2159                         /* Mailbox cmd failed. Timeout on min_wait. */
2160                         if (time_after_eq(jiffies, mtime) ||
2161                                 ha->flags.isp82xx_fw_hung)
2162                                 break;
2163                 }
2164
2165                 if (time_after_eq(jiffies, wtime))
2166                         break;
2167
2168                 /* Delay for a while */
2169                 msleep(500);
2170         } while (1);
2171
2172         ql_dbg(ql_dbg_taskm, vha, 0x803a,
2173             "fw_state=%x (%x, %x, %x, %x) " "curr time=%lx.\n", state[0],
2174             state[1], state[2], state[3], state[4], jiffies);
2175
2176         if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
2177                 ql_log(ql_log_warn, vha, 0x803b,
2178                     "Firmware ready **** FAILED ****.\n");
2179         }
2180
2181         return (rval);
2182 }
2183
2184 /*
2185 *  qla2x00_configure_hba
2186 *      Setup adapter context.
2187 *
2188 * Input:
2189 *      ha = adapter state pointer.
2190 *
2191 * Returns:
2192 *      0 = success
2193 *
2194 * Context:
2195 *      Kernel context.
2196 */
2197 static int
2198 qla2x00_configure_hba(scsi_qla_host_t *vha)
2199 {
2200         int       rval;
2201         uint16_t      loop_id;
2202         uint16_t      topo;
2203         uint16_t      sw_cap;
2204         uint8_t       al_pa;
2205         uint8_t       area;
2206         uint8_t       domain;
2207         char            connect_type[22];
2208         struct qla_hw_data *ha = vha->hw;
2209         unsigned long flags;
2210         scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
2211
2212         /* Get host addresses. */
2213         rval = qla2x00_get_adapter_id(vha,
2214             &loop_id, &al_pa, &area, &domain, &topo, &sw_cap);
2215         if (rval != QLA_SUCCESS) {
2216                 if (LOOP_TRANSITION(vha) || atomic_read(&ha->loop_down_timer) ||
2217                     IS_CNA_CAPABLE(ha) ||
2218                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
2219                         ql_dbg(ql_dbg_disc, vha, 0x2008,
2220                             "Loop is in a transition state.\n");
2221                 } else {
2222                         ql_log(ql_log_warn, vha, 0x2009,
2223                             "Unable to get host loop ID.\n");
2224                         if (IS_FWI2_CAPABLE(ha) && (vha == base_vha) &&
2225                             (rval == QLA_COMMAND_ERROR && loop_id == 0x1b)) {
2226                                 ql_log(ql_log_warn, vha, 0x1151,
2227                                     "Doing link init.\n");
2228                                 if (qla24xx_link_initialize(vha) == QLA_SUCCESS)
2229                                         return rval;
2230                         }
2231                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2232                 }
2233                 return (rval);
2234         }
2235
2236         if (topo == 4) {
2237                 ql_log(ql_log_info, vha, 0x200a,
2238                     "Cannot get topology - retrying.\n");
2239                 return (QLA_FUNCTION_FAILED);
2240         }
2241
2242         vha->loop_id = loop_id;
2243
2244         /* initialize */
2245         ha->min_external_loopid = SNS_FIRST_LOOP_ID;
2246         ha->operating_mode = LOOP;
2247         ha->switch_cap = 0;
2248
2249         switch (topo) {
2250         case 0:
2251                 ql_dbg(ql_dbg_disc, vha, 0x200b, "HBA in NL topology.\n");
2252                 ha->current_topology = ISP_CFG_NL;
2253                 strcpy(connect_type, "(Loop)");
2254                 break;
2255
2256         case 1:
2257                 ql_dbg(ql_dbg_disc, vha, 0x200c, "HBA in FL topology.\n");
2258                 ha->switch_cap = sw_cap;
2259                 ha->current_topology = ISP_CFG_FL;
2260                 strcpy(connect_type, "(FL_Port)");
2261                 break;
2262
2263         case 2:
2264                 ql_dbg(ql_dbg_disc, vha, 0x200d, "HBA in N P2P topology.\n");
2265                 ha->operating_mode = P2P;
2266                 ha->current_topology = ISP_CFG_N;
2267                 strcpy(connect_type, "(N_Port-to-N_Port)");
2268                 break;
2269
2270         case 3:
2271                 ql_dbg(ql_dbg_disc, vha, 0x200e, "HBA in F P2P topology.\n");
2272                 ha->switch_cap = sw_cap;
2273                 ha->operating_mode = P2P;
2274                 ha->current_topology = ISP_CFG_F;
2275                 strcpy(connect_type, "(F_Port)");
2276                 break;
2277
2278         default:
2279                 ql_dbg(ql_dbg_disc, vha, 0x200f,
2280                     "HBA in unknown topology %x, using NL.\n", topo);
2281                 ha->current_topology = ISP_CFG_NL;
2282                 strcpy(connect_type, "(Loop)");
2283                 break;
2284         }
2285
2286         /* Save Host port and loop ID. */
2287         /* byte order - Big Endian */
2288         vha->d_id.b.domain = domain;
2289         vha->d_id.b.area = area;
2290         vha->d_id.b.al_pa = al_pa;
2291
2292         spin_lock_irqsave(&ha->vport_slock, flags);
2293         qlt_update_vp_map(vha, SET_AL_PA);
2294         spin_unlock_irqrestore(&ha->vport_slock, flags);
2295
2296         if (!vha->flags.init_done)
2297                 ql_log(ql_log_info, vha, 0x2010,
2298                     "Topology - %s, Host Loop address 0x%x.\n",
2299                     connect_type, vha->loop_id);
2300
2301         if (rval) {
2302                 ql_log(ql_log_warn, vha, 0x2011,
2303                     "%s FAILED\n", __func__);
2304         } else {
2305                 ql_dbg(ql_dbg_disc, vha, 0x2012,
2306                     "%s success\n", __func__);
2307         }
2308
2309         return(rval);
2310 }
2311
2312 inline void
2313 qla2x00_set_model_info(scsi_qla_host_t *vha, uint8_t *model, size_t len,
2314         char *def)
2315 {
2316         char *st, *en;
2317         uint16_t index;
2318         struct qla_hw_data *ha = vha->hw;
2319         int use_tbl = !IS_QLA24XX_TYPE(ha) && !IS_QLA25XX(ha) &&
2320             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha);
2321
2322         if (memcmp(model, BINZERO, len) != 0) {
2323                 strncpy(ha->model_number, model, len);
2324                 st = en = ha->model_number;
2325                 en += len - 1;
2326                 while (en > st) {
2327                         if (*en != 0x20 && *en != 0x00)
2328                                 break;
2329                         *en-- = '\0';
2330                 }
2331
2332                 index = (ha->pdev->subsystem_device & 0xff);
2333                 if (use_tbl &&
2334                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2335                     index < QLA_MODEL_NAMES)
2336                         strncpy(ha->model_desc,
2337                             qla2x00_model_name[index * 2 + 1],
2338                             sizeof(ha->model_desc) - 1);
2339         } else {
2340                 index = (ha->pdev->subsystem_device & 0xff);
2341                 if (use_tbl &&
2342                     ha->pdev->subsystem_vendor == PCI_VENDOR_ID_QLOGIC &&
2343                     index < QLA_MODEL_NAMES) {
2344                         strcpy(ha->model_number,
2345                             qla2x00_model_name[index * 2]);
2346                         strncpy(ha->model_desc,
2347                             qla2x00_model_name[index * 2 + 1],
2348                             sizeof(ha->model_desc) - 1);
2349                 } else {
2350                         strcpy(ha->model_number, def);
2351                 }
2352         }
2353         if (IS_FWI2_CAPABLE(ha))
2354                 qla2xxx_get_vpd_field(vha, "\x82", ha->model_desc,
2355                     sizeof(ha->model_desc));
2356 }
2357
2358 /* On sparc systems, obtain port and node WWN from firmware
2359  * properties.
2360  */
2361 static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
2362 {
2363 #ifdef CONFIG_SPARC
2364         struct qla_hw_data *ha = vha->hw;
2365         struct pci_dev *pdev = ha->pdev;
2366         struct device_node *dp = pci_device_to_OF_node(pdev);
2367         const u8 *val;
2368         int len;
2369
2370         val = of_get_property(dp, "port-wwn", &len);
2371         if (val && len >= WWN_SIZE)
2372                 memcpy(nv->port_name, val, WWN_SIZE);
2373
2374         val = of_get_property(dp, "node-wwn", &len);
2375         if (val && len >= WWN_SIZE)
2376                 memcpy(nv->node_name, val, WWN_SIZE);
2377 #endif
2378 }
2379
2380 /*
2381 * NVRAM configuration for ISP 2xxx
2382 *
2383 * Input:
2384 *      ha                = adapter block pointer.
2385 *
2386 * Output:
2387 *      initialization control block in response_ring
2388 *      host adapters parameters in host adapter block
2389 *
2390 * Returns:
2391 *      0 = success.
2392 */
2393 int
2394 qla2x00_nvram_config(scsi_qla_host_t *vha)
2395 {
2396         int             rval;
2397         uint8_t         chksum = 0;
2398         uint16_t        cnt;
2399         uint8_t         *dptr1, *dptr2;
2400         struct qla_hw_data *ha = vha->hw;
2401         init_cb_t       *icb = ha->init_cb;
2402         nvram_t         *nv = ha->nvram;
2403         uint8_t         *ptr = ha->nvram;
2404         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2405
2406         rval = QLA_SUCCESS;
2407
2408         /* Determine NVRAM starting address. */
2409         ha->nvram_size = sizeof(nvram_t);
2410         ha->nvram_base = 0;
2411         if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA2300(ha))
2412                 if ((RD_REG_WORD(&reg->ctrl_status) >> 14) == 1)
2413                         ha->nvram_base = 0x80;
2414
2415         /* Get NVRAM data and calculate checksum. */
2416         ha->isp_ops->read_nvram(vha, ptr, ha->nvram_base, ha->nvram_size);
2417         for (cnt = 0, chksum = 0; cnt < ha->nvram_size; cnt++)
2418                 chksum += *ptr++;
2419
2420         ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x010f,
2421             "Contents of NVRAM.\n");
2422         ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0110,
2423             (uint8_t *)nv, ha->nvram_size);
2424
2425         /* Bad NVRAM data, set defaults parameters. */
2426         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' ||
2427             nv->id[2] != 'P' || nv->id[3] != ' ' || nv->nvram_version < 1) {
2428                 /* Reset NVRAM data. */
2429                 ql_log(ql_log_warn, vha, 0x0064,
2430                     "Inconsistent NVRAM "
2431                     "detected: checksum=0x%x id=%c version=0x%x.\n",
2432                     chksum, nv->id[0], nv->nvram_version);
2433                 ql_log(ql_log_warn, vha, 0x0065,
2434                     "Falling back to "
2435                     "functioning (yet invalid -- WWPN) defaults.\n");
2436
2437                 /*
2438                  * Set default initialization control block.
2439                  */
2440                 memset(nv, 0, ha->nvram_size);
2441                 nv->parameter_block_version = ICB_VERSION;
2442
2443                 if (IS_QLA23XX(ha)) {
2444                         nv->firmware_options[0] = BIT_2 | BIT_1;
2445                         nv->firmware_options[1] = BIT_7 | BIT_5;
2446                         nv->add_firmware_options[0] = BIT_5;
2447                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
2448                         nv->frame_payload_size = __constant_cpu_to_le16(2048);
2449                         nv->special_options[1] = BIT_7;
2450                 } else if (IS_QLA2200(ha)) {
2451                         nv->firmware_options[0] = BIT_2 | BIT_1;
2452                         nv->firmware_options[1] = BIT_7 | BIT_5;
2453                         nv->add_firmware_options[0] = BIT_5;
2454                         nv->add_firmware_options[1] = BIT_5 | BIT_4;
2455                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
2456                 } else if (IS_QLA2100(ha)) {
2457                         nv->firmware_options[0] = BIT_3 | BIT_1;
2458                         nv->firmware_options[1] = BIT_5;
2459                         nv->frame_payload_size = __constant_cpu_to_le16(1024);
2460                 }
2461
2462                 nv->max_iocb_allocation = __constant_cpu_to_le16(256);
2463                 nv->execution_throttle = __constant_cpu_to_le16(16);
2464                 nv->retry_count = 8;
2465                 nv->retry_delay = 1;
2466
2467                 nv->port_name[0] = 33;
2468                 nv->port_name[3] = 224;
2469                 nv->port_name[4] = 139;
2470
2471                 qla2xxx_nvram_wwn_from_ofw(vha, nv);
2472
2473                 nv->login_timeout = 4;
2474
2475                 /*
2476                  * Set default host adapter parameters
2477                  */
2478                 nv->host_p[1] = BIT_2;
2479                 nv->reset_delay = 5;
2480                 nv->port_down_retry_count = 8;
2481                 nv->max_luns_per_target = __constant_cpu_to_le16(8);
2482                 nv->link_down_timeout = 60;
2483
2484                 rval = 1;
2485         }
2486
2487 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
2488         /*
2489          * The SN2 does not provide BIOS emulation which means you can't change
2490          * potentially bogus BIOS settings. Force the use of default settings
2491          * for link rate and frame size.  Hope that the rest of the settings
2492          * are valid.
2493          */
2494         if (ia64_platform_is("sn2")) {
2495                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
2496                 if (IS_QLA23XX(ha))
2497                         nv->special_options[1] = BIT_7;
2498         }
2499 #endif
2500
2501         /* Reset Initialization control block */
2502         memset(icb, 0, ha->init_cb_size);
2503
2504         /*
2505          * Setup driver NVRAM options.
2506          */
2507         nv->firmware_options[0] |= (BIT_6 | BIT_1);
2508         nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
2509         nv->firmware_options[1] |= (BIT_5 | BIT_0);
2510         nv->firmware_options[1] &= ~BIT_4;
2511
2512         if (IS_QLA23XX(ha)) {
2513                 nv->firmware_options[0] |= BIT_2;
2514                 nv->firmware_options[0] &= ~BIT_3;
2515                 nv->special_options[0] &= ~BIT_6;
2516                 nv->add_firmware_options[1] |= BIT_5 | BIT_4;
2517
2518                 if (IS_QLA2300(ha)) {
2519                         if (ha->fb_rev == FPM_2310) {
2520                                 strcpy(ha->model_number, "QLA2310");
2521                         } else {
2522                                 strcpy(ha->model_number, "QLA2300");
2523                         }
2524                 } else {
2525                         qla2x00_set_model_info(vha, nv->model_number,
2526                             sizeof(nv->model_number), "QLA23xx");
2527                 }
2528         } else if (IS_QLA2200(ha)) {
2529                 nv->firmware_options[0] |= BIT_2;
2530                 /*
2531                  * 'Point-to-point preferred, else loop' is not a safe
2532                  * connection mode setting.
2533                  */
2534                 if ((nv->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) ==
2535                     (BIT_5 | BIT_4)) {
2536                         /* Force 'loop preferred, else point-to-point'. */
2537                         nv->add_firmware_options[0] &= ~(BIT_6 | BIT_5 | BIT_4);
2538                         nv->add_firmware_options[0] |= BIT_5;
2539                 }
2540                 strcpy(ha->model_number, "QLA22xx");
2541         } else /*if (IS_QLA2100(ha))*/ {
2542                 strcpy(ha->model_number, "QLA2100");
2543         }
2544
2545         /*
2546          * Copy over NVRAM RISC parameter block to initialization control block.
2547          */
2548         dptr1 = (uint8_t *)icb;
2549         dptr2 = (uint8_t *)&nv->parameter_block_version;
2550         cnt = (uint8_t *)&icb->request_q_outpointer - (uint8_t *)&icb->version;
2551         while (cnt--)
2552                 *dptr1++ = *dptr2++;
2553
2554         /* Copy 2nd half. */
2555         dptr1 = (uint8_t *)icb->add_firmware_options;
2556         cnt = (uint8_t *)icb->reserved_3 - (uint8_t *)icb->add_firmware_options;
2557         while (cnt--)
2558                 *dptr1++ = *dptr2++;
2559
2560         /* Use alternate WWN? */
2561         if (nv->host_p[1] & BIT_7) {
2562                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
2563                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
2564         }
2565
2566         /* Prepare nodename */
2567         if ((icb->firmware_options[1] & BIT_6) == 0) {
2568                 /*
2569                  * Firmware will apply the following mask if the nodename was
2570                  * not provided.
2571                  */
2572                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
2573                 icb->node_name[0] &= 0xF0;
2574         }
2575
2576         /*
2577          * Set host adapter parameters.
2578          */
2579
2580         /*
2581          * BIT_7 in the host-parameters section allows for modification to
2582          * internal driver logging.
2583          */
2584         if (nv->host_p[0] & BIT_7)
2585                 ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
2586         ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
2587         /* Always load RISC code on non ISP2[12]00 chips. */
2588         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
2589                 ha->flags.disable_risc_code_load = 0;
2590         ha->flags.enable_lip_reset = ((nv->host_p[1] & BIT_1) ? 1 : 0);
2591         ha->flags.enable_lip_full_login = ((nv->host_p[1] & BIT_2) ? 1 : 0);
2592         ha->flags.enable_target_reset = ((nv->host_p[1] & BIT_3) ? 1 : 0);
2593         ha->flags.enable_led_scheme = (nv->special_options[1] & BIT_4) ? 1 : 0;
2594         ha->flags.disable_serdes = 0;
2595
2596         ha->operating_mode =
2597             (icb->add_firmware_options[0] & (BIT_6 | BIT_5 | BIT_4)) >> 4;
2598
2599         memcpy(ha->fw_seriallink_options, nv->seriallink_options,
2600             sizeof(ha->fw_seriallink_options));
2601
2602         /* save HBA serial number */
2603         ha->serial0 = icb->port_name[5];
2604         ha->serial1 = icb->port_name[6];
2605         ha->serial2 = icb->port_name[7];
2606         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
2607         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
2608
2609         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
2610
2611         ha->retry_count = nv->retry_count;
2612
2613         /* Set minimum login_timeout to 4 seconds. */
2614         if (nv->login_timeout != ql2xlogintimeout)
2615                 nv->login_timeout = ql2xlogintimeout;
2616         if (nv->login_timeout < 4)
2617                 nv->login_timeout = 4;
2618         ha->login_timeout = nv->login_timeout;
2619         icb->login_timeout = nv->login_timeout;
2620
2621         /* Set minimum RATOV to 100 tenths of a second. */
2622         ha->r_a_tov = 100;
2623
2624         ha->loop_reset_delay = nv->reset_delay;
2625
2626         /* Link Down Timeout = 0:
2627          *
2628          *      When Port Down timer expires we will start returning
2629          *      I/O's to OS with "DID_NO_CONNECT".
2630          *
2631          * Link Down Timeout != 0:
2632          *
2633          *       The driver waits for the link to come up after link down
2634          *       before returning I/Os to OS with "DID_NO_CONNECT".
2635          */
2636         if (nv->link_down_timeout == 0) {
2637                 ha->loop_down_abort_time =
2638                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
2639         } else {
2640                 ha->link_down_timeout =  nv->link_down_timeout;
2641                 ha->loop_down_abort_time =
2642                     (LOOP_DOWN_TIME - ha->link_down_timeout);
2643         }
2644
2645         /*
2646          * Need enough time to try and get the port back.
2647          */
2648         ha->port_down_retry_count = nv->port_down_retry_count;
2649         if (qlport_down_retry)
2650                 ha->port_down_retry_count = qlport_down_retry;
2651         /* Set login_retry_count */
2652         ha->login_retry_count  = nv->retry_count;
2653         if (ha->port_down_retry_count == nv->port_down_retry_count &&
2654             ha->port_down_retry_count > 3)
2655                 ha->login_retry_count = ha->port_down_retry_count;
2656         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
2657                 ha->login_retry_count = ha->port_down_retry_count;
2658         if (ql2xloginretrycount)
2659                 ha->login_retry_count = ql2xloginretrycount;
2660
2661         icb->lun_enables = __constant_cpu_to_le16(0);
2662         icb->command_resource_count = 0;
2663         icb->immediate_notify_resource_count = 0;
2664         icb->timeout = __constant_cpu_to_le16(0);
2665
2666         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2667                 /* Enable RIO */
2668                 icb->firmware_options[0] &= ~BIT_3;
2669                 icb->add_firmware_options[0] &=
2670                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2671                 icb->add_firmware_options[0] |= BIT_2;
2672                 icb->response_accumulation_timer = 3;
2673                 icb->interrupt_delay_timer = 5;
2674
2675                 vha->flags.process_response_queue = 1;
2676         } else {
2677                 /* Enable ZIO. */
2678                 if (!vha->flags.init_done) {
2679                         ha->zio_mode = icb->add_firmware_options[0] &
2680                             (BIT_3 | BIT_2 | BIT_1 | BIT_0);
2681                         ha->zio_timer = icb->interrupt_delay_timer ?
2682                             icb->interrupt_delay_timer: 2;
2683                 }
2684                 icb->add_firmware_options[0] &=
2685                     ~(BIT_3 | BIT_2 | BIT_1 | BIT_0);
2686                 vha->flags.process_response_queue = 0;
2687                 if (ha->zio_mode != QLA_ZIO_DISABLED) {
2688                         ha->zio_mode = QLA_ZIO_MODE_6;
2689
2690                         ql_log(ql_log_info, vha, 0x0068,
2691                             "ZIO mode %d enabled; timer delay (%d us).\n",
2692                             ha->zio_mode, ha->zio_timer * 100);
2693
2694                         icb->add_firmware_options[0] |= (uint8_t)ha->zio_mode;
2695                         icb->interrupt_delay_timer = (uint8_t)ha->zio_timer;
2696                         vha->flags.process_response_queue = 1;
2697                 }
2698         }
2699
2700         if (rval) {
2701                 ql_log(ql_log_warn, vha, 0x0069,
2702                     "NVRAM configuration failed.\n");
2703         }
2704         return (rval);
2705 }
2706
2707 static void
2708 qla2x00_rport_del(void *data)
2709 {
2710         fc_port_t *fcport = data;
2711         struct fc_rport *rport;
2712         scsi_qla_host_t *vha = fcport->vha;
2713         unsigned long flags;
2714
2715         spin_lock_irqsave(fcport->vha->host->host_lock, flags);
2716         rport = fcport->drport ? fcport->drport: fcport->rport;
2717         fcport->drport = NULL;
2718         spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
2719         if (rport) {
2720                 fc_remote_port_delete(rport);
2721                 /*
2722                  * Release the target mode FC NEXUS in qla_target.c code
2723                  * if target mod is enabled.
2724                  */
2725                 qlt_fc_port_deleted(vha, fcport);
2726         }
2727 }
2728
2729 /**
2730  * qla2x00_alloc_fcport() - Allocate a generic fcport.
2731  * @ha: HA context
2732  * @flags: allocation flags
2733  *
2734  * Returns a pointer to the allocated fcport, or NULL, if none available.
2735  */
2736 fc_port_t *
2737 qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
2738 {
2739         fc_port_t *fcport;
2740
2741         fcport = kzalloc(sizeof(fc_port_t), flags);
2742         if (!fcport)
2743                 return NULL;
2744
2745         /* Setup fcport template structure. */
2746         fcport->vha = vha;
2747         fcport->port_type = FCT_UNKNOWN;
2748         fcport->loop_id = FC_NO_LOOP_ID;
2749         qla2x00_set_fcport_state(fcport, FCS_UNCONFIGURED);
2750         fcport->supported_classes = FC_COS_UNSPECIFIED;
2751
2752         return fcport;
2753 }
2754
2755 /*
2756  * qla2x00_configure_loop
2757  *      Updates Fibre Channel Device Database with what is actually on loop.
2758  *
2759  * Input:
2760  *      ha                = adapter block pointer.
2761  *
2762  * Returns:
2763  *      0 = success.
2764  *      1 = error.
2765  *      2 = database was full and device was not configured.
2766  */
2767 static int
2768 qla2x00_configure_loop(scsi_qla_host_t *vha)
2769 {
2770         int  rval;
2771         unsigned long flags, save_flags;
2772         struct qla_hw_data *ha = vha->hw;
2773         rval = QLA_SUCCESS;
2774
2775         /* Get Initiator ID */
2776         if (test_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags)) {
2777                 rval = qla2x00_configure_hba(vha);
2778                 if (rval != QLA_SUCCESS) {
2779                         ql_dbg(ql_dbg_disc, vha, 0x2013,
2780                             "Unable to configure HBA.\n");
2781                         return (rval);
2782                 }
2783         }
2784
2785         save_flags = flags = vha->dpc_flags;
2786         ql_dbg(ql_dbg_disc, vha, 0x2014,
2787             "Configure loop -- dpc flags = 0x%lx.\n", flags);
2788
2789         /*
2790          * If we have both an RSCN and PORT UPDATE pending then handle them
2791          * both at the same time.
2792          */
2793         clear_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2794         clear_bit(RSCN_UPDATE, &vha->dpc_flags);
2795
2796         qla2x00_get_data_rate(vha);
2797
2798         /* Determine what we need to do */
2799         if (ha->current_topology == ISP_CFG_FL &&
2800             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2801
2802                 set_bit(RSCN_UPDATE, &flags);
2803
2804         } else if (ha->current_topology == ISP_CFG_F &&
2805             (test_bit(LOCAL_LOOP_UPDATE, &flags))) {
2806
2807                 set_bit(RSCN_UPDATE, &flags);
2808                 clear_bit(LOCAL_LOOP_UPDATE, &flags);
2809
2810         } else if (ha->current_topology == ISP_CFG_N) {
2811                 clear_bit(RSCN_UPDATE, &flags);
2812
2813         } else if (!vha->flags.online ||
2814             (test_bit(ABORT_ISP_ACTIVE, &flags))) {
2815
2816                 set_bit(RSCN_UPDATE, &flags);
2817                 set_bit(LOCAL_LOOP_UPDATE, &flags);
2818         }
2819
2820         if (test_bit(LOCAL_LOOP_UPDATE, &flags)) {
2821                 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2822                         ql_dbg(ql_dbg_disc, vha, 0x2015,
2823                             "Loop resync needed, failing.\n");
2824                         rval = QLA_FUNCTION_FAILED;
2825                 } else
2826                         rval = qla2x00_configure_local_loop(vha);
2827         }
2828
2829         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
2830                 if (LOOP_TRANSITION(vha)) {
2831                         ql_dbg(ql_dbg_disc, vha, 0x201e,
2832                             "Needs RSCN update and loop transition.\n");
2833                         rval = QLA_FUNCTION_FAILED;
2834                 }
2835                 else
2836                         rval = qla2x00_configure_fabric(vha);
2837         }
2838
2839         if (rval == QLA_SUCCESS) {
2840                 if (atomic_read(&vha->loop_down_timer) ||
2841                     test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2842                         rval = QLA_FUNCTION_FAILED;
2843                 } else {
2844                         atomic_set(&vha->loop_state, LOOP_READY);
2845                         ql_dbg(ql_dbg_disc, vha, 0x2069,
2846                             "LOOP READY.\n");
2847                 }
2848         }
2849
2850         if (rval) {
2851                 ql_dbg(ql_dbg_disc, vha, 0x206a,
2852                     "%s *** FAILED ***.\n", __func__);
2853         } else {
2854                 ql_dbg(ql_dbg_disc, vha, 0x206b,
2855                     "%s: exiting normally.\n", __func__);
2856         }
2857
2858         /* Restore state if a resync event occurred during processing */
2859         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
2860                 if (test_bit(LOCAL_LOOP_UPDATE, &save_flags))
2861                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
2862                 if (test_bit(RSCN_UPDATE, &save_flags)) {
2863                         set_bit(RSCN_UPDATE, &vha->dpc_flags);
2864                 }
2865         }
2866
2867         return (rval);
2868 }
2869
2870
2871
2872 /*
2873  * qla2x00_configure_local_loop
2874  *      Updates Fibre Channel Device Database with local loop devices.
2875  *
2876  * Input:
2877  *      ha = adapter block pointer.
2878  *
2879  * Returns:
2880  *      0 = success.
2881  */
2882 static int
2883 qla2x00_configure_local_loop(scsi_qla_host_t *vha)
2884 {
2885         int             rval, rval2;
2886         int             found_devs;
2887         int             found;
2888         fc_port_t       *fcport, *new_fcport;
2889
2890         uint16_t        index;
2891         uint16_t        entries;
2892         char            *id_iter;
2893         uint16_t        loop_id;
2894         uint8_t         domain, area, al_pa;
2895         struct qla_hw_data *ha = vha->hw;
2896
2897         found_devs = 0;
2898         new_fcport = NULL;
2899         entries = MAX_FIBRE_DEVICES_LOOP;
2900
2901         /* Get list of logged in devices. */
2902         memset(ha->gid_list, 0, qla2x00_gid_list_size(ha));
2903         rval = qla2x00_get_id_list(vha, ha->gid_list, ha->gid_list_dma,
2904             &entries);
2905         if (rval != QLA_SUCCESS)
2906                 goto cleanup_allocation;
2907
2908         ql_dbg(ql_dbg_disc, vha, 0x2017,
2909             "Entries in ID list (%d).\n", entries);
2910         ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2075,
2911             (uint8_t *)ha->gid_list,
2912             entries * sizeof(struct gid_list_info));
2913
2914         /* Allocate temporary fcport for any new fcports discovered. */
2915         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2916         if (new_fcport == NULL) {
2917                 ql_log(ql_log_warn, vha, 0x2018,
2918                     "Memory allocation failed for fcport.\n");
2919                 rval = QLA_MEMORY_ALLOC_FAILED;
2920                 goto cleanup_allocation;
2921         }
2922         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
2923
2924         /*
2925          * Mark local devices that were present with FCF_DEVICE_LOST for now.
2926          */
2927         list_for_each_entry(fcport, &vha->vp_fcports, list) {
2928                 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2929                     fcport->port_type != FCT_BROADCAST &&
2930                     (fcport->flags & FCF_FABRIC_DEVICE) == 0) {
2931
2932                         ql_dbg(ql_dbg_disc, vha, 0x2019,
2933                             "Marking port lost loop_id=0x%04x.\n",
2934                             fcport->loop_id);
2935
2936                         qla2x00_set_fcport_state(fcport, FCS_DEVICE_LOST);
2937                 }
2938         }
2939
2940         /* Add devices to port list. */
2941         id_iter = (char *)ha->gid_list;
2942         for (index = 0; index < entries; index++) {
2943                 domain = ((struct gid_list_info *)id_iter)->domain;
2944                 area = ((struct gid_list_info *)id_iter)->area;
2945                 al_pa = ((struct gid_list_info *)id_iter)->al_pa;
2946                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
2947                         loop_id = (uint16_t)
2948                             ((struct gid_list_info *)id_iter)->loop_id_2100;
2949                 else
2950                         loop_id = le16_to_cpu(
2951                             ((struct gid_list_info *)id_iter)->loop_id);
2952                 id_iter += ha->gid_list_info_size;
2953
2954                 /* Bypass reserved domain fields. */
2955                 if ((domain & 0xf0) == 0xf0)
2956                         continue;
2957
2958                 /* Bypass if not same domain and area of adapter. */
2959                 if (area && domain &&
2960                     (area != vha->d_id.b.area || domain != vha->d_id.b.domain))
2961                         continue;
2962
2963                 /* Bypass invalid local loop ID. */
2964                 if (loop_id > LAST_LOCAL_LOOP_ID)
2965                         continue;
2966
2967                 memset(new_fcport, 0, sizeof(fc_port_t));
2968
2969                 /* Fill in member data. */
2970                 new_fcport->d_id.b.domain = domain;
2971                 new_fcport->d_id.b.area = area;
2972                 new_fcport->d_id.b.al_pa = al_pa;
2973                 new_fcport->loop_id = loop_id;
2974                 rval2 = qla2x00_get_port_database(vha, new_fcport, 0);
2975                 if (rval2 != QLA_SUCCESS) {
2976                         ql_dbg(ql_dbg_disc, vha, 0x201a,
2977                             "Failed to retrieve fcport information "
2978                             "-- get_port_database=%x, loop_id=0x%04x.\n",
2979                             rval2, new_fcport->loop_id);
2980                         ql_dbg(ql_dbg_disc, vha, 0x201b,
2981                             "Scheduling resync.\n");
2982                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
2983                         continue;
2984                 }
2985
2986                 /* Check for matching device in port list. */
2987                 found = 0;
2988                 fcport = NULL;
2989                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2990                         if (memcmp(new_fcport->port_name, fcport->port_name,
2991                             WWN_SIZE))
2992                                 continue;
2993
2994                         fcport->flags &= ~FCF_FABRIC_DEVICE;
2995                         fcport->loop_id = new_fcport->loop_id;
2996                         fcport->port_type = new_fcport->port_type;
2997                         fcport->d_id.b24 = new_fcport->d_id.b24;
2998                         memcpy(fcport->node_name, new_fcport->node_name,
2999                             WWN_SIZE);
3000
3001                         found++;
3002                         break;
3003                 }
3004
3005                 if (!found) {
3006                         /* New device, add to fcports list. */
3007                         list_add_tail(&new_fcport->list, &vha->vp_fcports);
3008
3009                         /* Allocate a new replacement fcport. */
3010                         fcport = new_fcport;
3011                         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3012                         if (new_fcport == NULL) {
3013                                 ql_log(ql_log_warn, vha, 0x201c,
3014                                     "Failed to allocate memory for fcport.\n");
3015                                 rval = QLA_MEMORY_ALLOC_FAILED;
3016                                 goto cleanup_allocation;
3017                         }
3018                         new_fcport->flags &= ~FCF_FABRIC_DEVICE;
3019                 }
3020
3021                 /* Base iIDMA settings on HBA port speed. */
3022                 fcport->fp_speed = ha->link_data_rate;
3023
3024                 qla2x00_update_fcport(vha, fcport);
3025
3026                 found_devs++;
3027         }
3028
3029 cleanup_allocation:
3030         kfree(new_fcport);
3031
3032         if (rval != QLA_SUCCESS) {
3033                 ql_dbg(ql_dbg_disc, vha, 0x201d,
3034                     "Configure local loop error exit: rval=%x.\n", rval);
3035         }
3036
3037         return (rval);
3038 }
3039
3040 static void
3041 qla2x00_iidma_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
3042 {
3043         int rval;
3044         uint16_t mb[4];
3045         struct qla_hw_data *ha = vha->hw;
3046
3047         if (!IS_IIDMA_CAPABLE(ha))
3048                 return;
3049
3050         if (atomic_read(&fcport->state) != FCS_ONLINE)
3051                 return;
3052
3053         if (fcport->fp_speed == PORT_SPEED_UNKNOWN ||
3054             fcport->fp_speed > ha->link_data_rate)
3055                 return;
3056
3057         rval = qla2x00_set_idma_speed(vha, fcport->loop_id, fcport->fp_speed,
3058             mb);
3059         if (rval != QLA_SUCCESS) {
3060                 ql_dbg(ql_dbg_disc, vha, 0x2004,
3061                     "Unable to adjust iIDMA "
3062                     "%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x "
3063                     "%04x.\n", fcport->port_name[0], fcport->port_name[1],
3064                     fcport->port_name[2], fcport->port_name[3],
3065                     fcport->port_name[4], fcport->port_name[5],
3066                     fcport->port_name[6], fcport->port_name[7], rval,
3067                     fcport->fp_speed, mb[0], mb[1]);
3068         } else {
3069                 ql_dbg(ql_dbg_disc, vha, 0x2005,
3070                     "iIDMA adjusted to %s GB/s "
3071                     "on %02x%02x%02x%02x%02x%02x%02x%02x.\n",
3072                     qla2x00_get_link_speed_str(ha, fcport->fp_speed),
3073                     fcport->port_name[0], fcport->port_name[1],
3074                     fcport->port_name[2], fcport->port_name[3],
3075                     fcport->port_name[4], fcport->port_name[5],
3076                     fcport->port_name[6], fcport->port_name[7]);
3077         }
3078 }
3079
3080 static void
3081 qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
3082 {
3083         struct fc_rport_identifiers rport_ids;
3084         struct fc_rport *rport;
3085         unsigned long flags;
3086
3087         qla2x00_rport_del(fcport);
3088
3089         rport_ids.node_name = wwn_to_u64(fcport->node_name);
3090         rport_ids.port_name = wwn_to_u64(fcport->port_name);
3091         rport_ids.port_id = fcport->d_id.b.domain << 16 |
3092             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
3093         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3094         fcport->rport = rport = fc_remote_port_add(vha->host, 0, &rport_ids);
3095         if (!rport) {
3096                 ql_log(ql_log_warn, vha, 0x2006,
3097                     "Unable to allocate fc remote port.\n");
3098                 return;
3099         }
3100         /*
3101          * Create target mode FC NEXUS in qla_target.c if target mode is
3102          * enabled..
3103          */
3104         qlt_fc_port_added(vha, fcport);
3105
3106         spin_lock_irqsave(fcport->vha->host->host_lock, flags);
3107         *((fc_port_t **)rport->dd_data) = fcport;
3108         spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
3109
3110         rport->supported_classes = fcport->supported_classes;
3111
3112         rport_ids.roles = FC_RPORT_ROLE_UNKNOWN;
3113         if (fcport->port_type == FCT_INITIATOR)
3114                 rport_ids.roles |= FC_RPORT_ROLE_FCP_INITIATOR;
3115         if (fcport->port_type == FCT_TARGET)
3116                 rport_ids.roles |= FC_RPORT_ROLE_FCP_TARGET;
3117         fc_remote_port_rolechg(rport, rport_ids.roles);
3118 }
3119
3120 /*
3121  * qla2x00_update_fcport
3122  *      Updates device on list.
3123  *
3124  * Input:
3125  *      ha = adapter block pointer.
3126  *      fcport = port structure pointer.
3127  *
3128  * Return:
3129  *      0  - Success
3130  *  BIT_0 - error
3131  *
3132  * Context:
3133  *      Kernel context.
3134  */
3135 void
3136 qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
3137 {
3138         fcport->vha = vha;
3139         fcport->login_retry = 0;
3140         fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
3141
3142         qla2x00_set_fcport_state(fcport, FCS_ONLINE);
3143         qla2x00_iidma_fcport(vha, fcport);
3144         qla24xx_update_fcport_fcp_prio(vha, fcport);
3145         qla2x00_reg_remote_port(vha, fcport);
3146 }
3147
3148 /*
3149  * qla2x00_configure_fabric
3150  *      Setup SNS devices with loop ID's.
3151  *
3152  * Input:
3153  *      ha = adapter block pointer.
3154  *
3155  * Returns:
3156  *      0 = success.
3157  *      BIT_0 = error
3158  */
3159 static int
3160 qla2x00_configure_fabric(scsi_qla_host_t *vha)
3161 {
3162         int     rval;
3163         fc_port_t       *fcport, *fcptemp;
3164         uint16_t        next_loopid;
3165         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3166         uint16_t        loop_id;
3167         LIST_HEAD(new_fcports);
3168         struct qla_hw_data *ha = vha->hw;
3169         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3170
3171         /* If FL port exists, then SNS is present */
3172         if (IS_FWI2_CAPABLE(ha))
3173                 loop_id = NPH_F_PORT;
3174         else
3175                 loop_id = SNS_FL_PORT;
3176         rval = qla2x00_get_port_name(vha, loop_id, vha->fabric_node_name, 1);
3177         if (rval != QLA_SUCCESS) {
3178                 ql_dbg(ql_dbg_disc, vha, 0x201f,
3179                     "MBX_GET_PORT_NAME failed, No FL Port.\n");
3180
3181                 vha->device_flags &= ~SWITCH_FOUND;
3182                 return (QLA_SUCCESS);
3183         }
3184         vha->device_flags |= SWITCH_FOUND;
3185
3186         do {
3187                 /* FDMI support. */
3188                 if (ql2xfdmienable &&
3189                     test_and_clear_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags))
3190                         qla2x00_fdmi_register(vha);
3191
3192                 /* Ensure we are logged into the SNS. */
3193                 if (IS_FWI2_CAPABLE(ha))
3194                         loop_id = NPH_SNS;
3195                 else
3196                         loop_id = SIMPLE_NAME_SERVER;
3197                 rval = ha->isp_ops->fabric_login(vha, loop_id, 0xff, 0xff,
3198                     0xfc, mb, BIT_1|BIT_0);
3199                 if (rval != QLA_SUCCESS) {
3200                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3201                         return rval;
3202                 }
3203                 if (mb[0] != MBS_COMMAND_COMPLETE) {
3204                         ql_dbg(ql_dbg_disc, vha, 0x2042,
3205                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x mb[2]=%x "
3206                             "mb[6]=%x mb[7]=%x.\n", loop_id, mb[0], mb[1],
3207                             mb[2], mb[6], mb[7]);
3208                         return (QLA_SUCCESS);
3209                 }
3210
3211                 if (test_and_clear_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags)) {
3212                         if (qla2x00_rft_id(vha)) {
3213                                 /* EMPTY */
3214                                 ql_dbg(ql_dbg_disc, vha, 0x2045,
3215                                     "Register FC-4 TYPE failed.\n");
3216                         }
3217                         if (qla2x00_rff_id(vha)) {
3218                                 /* EMPTY */
3219                                 ql_dbg(ql_dbg_disc, vha, 0x2049,
3220                                     "Register FC-4 Features failed.\n");
3221                         }
3222                         if (qla2x00_rnn_id(vha)) {
3223                                 /* EMPTY */
3224                                 ql_dbg(ql_dbg_disc, vha, 0x204f,
3225                                     "Register Node Name failed.\n");
3226                         } else if (qla2x00_rsnn_nn(vha)) {
3227                                 /* EMPTY */
3228                                 ql_dbg(ql_dbg_disc, vha, 0x2053,
3229                                     "Register Symobilic Node Name failed.\n");
3230                         }
3231                 }
3232
3233 #define QLA_FCPORT_SCAN         1
3234 #define QLA_FCPORT_FOUND        2
3235
3236                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3237                         fcport->scan_state = QLA_FCPORT_SCAN;
3238                 }
3239
3240                 rval = qla2x00_find_all_fabric_devs(vha, &new_fcports);
3241                 if (rval != QLA_SUCCESS)
3242                         break;
3243
3244                 /*
3245                  * Logout all previous fabric devices marked lost, except
3246                  * FCP2 devices.
3247                  */
3248                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3249                         if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3250                                 break;
3251
3252                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0)
3253                                 continue;
3254
3255                         if (fcport->scan_state == QLA_FCPORT_SCAN &&
3256                             atomic_read(&fcport->state) == FCS_ONLINE) {
3257                                 qla2x00_mark_device_lost(vha, fcport,
3258                                     ql2xplogiabsentdevice, 0);
3259                                 if (fcport->loop_id != FC_NO_LOOP_ID &&
3260                                     (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3261                                     fcport->port_type != FCT_INITIATOR &&
3262                                     fcport->port_type != FCT_BROADCAST) {
3263                                         ha->isp_ops->fabric_logout(vha,
3264                                             fcport->loop_id,
3265                                             fcport->d_id.b.domain,
3266                                             fcport->d_id.b.area,
3267                                             fcport->d_id.b.al_pa);
3268                                         fcport->loop_id = FC_NO_LOOP_ID;
3269                                 }
3270                         }
3271                 }
3272
3273                 /* Starting free loop ID. */
3274                 next_loopid = ha->min_external_loopid;
3275
3276                 /*
3277                  * Scan through our port list and login entries that need to be
3278                  * logged in.
3279                  */
3280                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3281                         if (atomic_read(&vha->loop_down_timer) ||
3282                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3283                                 break;
3284
3285                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0 ||
3286                             (fcport->flags & FCF_LOGIN_NEEDED) == 0)
3287                                 continue;
3288
3289                         if (fcport->loop_id == FC_NO_LOOP_ID) {
3290                                 fcport->loop_id = next_loopid;
3291                                 rval = qla2x00_find_new_loop_id(
3292                                     base_vha, fcport);
3293                                 if (rval != QLA_SUCCESS) {
3294                                         /* Ran out of IDs to use */
3295                                         break;
3296                                 }
3297                         }
3298                         /* Login and update database */
3299                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3300                 }
3301
3302                 /* Exit if out of loop IDs. */
3303                 if (rval != QLA_SUCCESS) {
3304                         break;
3305                 }
3306
3307                 /*
3308                  * Login and add the new devices to our port list.
3309                  */
3310                 list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3311                         if (atomic_read(&vha->loop_down_timer) ||
3312                             test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
3313                                 break;
3314
3315                         /* Find a new loop ID to use. */
3316                         fcport->loop_id = next_loopid;
3317                         rval = qla2x00_find_new_loop_id(base_vha, fcport);
3318                         if (rval != QLA_SUCCESS) {
3319                                 /* Ran out of IDs to use */
3320                                 break;
3321                         }
3322
3323                         /* Login and update database */
3324                         qla2x00_fabric_dev_login(vha, fcport, &next_loopid);
3325
3326                         list_move_tail(&fcport->list, &vha->vp_fcports);
3327                 }
3328         } while (0);
3329
3330         /* Free all new device structures not processed. */
3331         list_for_each_entry_safe(fcport, fcptemp, &new_fcports, list) {
3332                 list_del(&fcport->list);
3333                 kfree(fcport);
3334         }
3335
3336         if (rval) {
3337                 ql_dbg(ql_dbg_disc, vha, 0x2068,
3338                     "Configure fabric error exit rval=%d.\n", rval);
3339         }
3340
3341         return (rval);
3342 }
3343
3344 /*
3345  * qla2x00_find_all_fabric_devs
3346  *
3347  * Input:
3348  *      ha = adapter block pointer.
3349  *      dev = database device entry pointer.
3350  *
3351  * Returns:
3352  *      0 = success.
3353  *
3354  * Context:
3355  *      Kernel context.
3356  */
3357 static int
3358 qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
3359         struct list_head *new_fcports)
3360 {
3361         int             rval;
3362         uint16_t        loop_id;
3363         fc_port_t       *fcport, *new_fcport, *fcptemp;
3364         int             found;
3365
3366         sw_info_t       *swl;
3367         int             swl_idx;
3368         int             first_dev, last_dev;
3369         port_id_t       wrap = {}, nxt_d_id;
3370         struct qla_hw_data *ha = vha->hw;
3371         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
3372
3373         rval = QLA_SUCCESS;
3374
3375         /* Try GID_PT to get device list, else GAN. */
3376         if (!ha->swl)
3377                 ha->swl = kcalloc(ha->max_fibre_devices, sizeof(sw_info_t),
3378                     GFP_KERNEL);
3379         swl = ha->swl;
3380         if (!swl) {
3381                 /*EMPTY*/
3382                 ql_dbg(ql_dbg_disc, vha, 0x2054,
3383                     "GID_PT allocations failed, fallback on GA_NXT.\n");
3384         } else {
3385                 memset(swl, 0, ha->max_fibre_devices * sizeof(sw_info_t));
3386                 if (qla2x00_gid_pt(vha, swl) != QLA_SUCCESS) {
3387                         swl = NULL;
3388                 } else if (qla2x00_gpn_id(vha, swl) != QLA_SUCCESS) {
3389                         swl = NULL;
3390                 } else if (qla2x00_gnn_id(vha, swl) != QLA_SUCCESS) {
3391                         swl = NULL;
3392                 } else if (ql2xiidmaenable &&
3393                     qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
3394                         qla2x00_gpsc(vha, swl);
3395                 }
3396
3397                 /* If other queries succeeded probe for FC-4 type */
3398                 if (swl)
3399                         qla2x00_gff_id(vha, swl);
3400         }
3401         swl_idx = 0;
3402
3403         /* Allocate temporary fcport for any new fcports discovered. */
3404         new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3405         if (new_fcport == NULL) {
3406                 ql_log(ql_log_warn, vha, 0x205e,
3407                     "Failed to allocate memory for fcport.\n");
3408                 return (QLA_MEMORY_ALLOC_FAILED);
3409         }
3410         new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3411         /* Set start port ID scan at adapter ID. */
3412         first_dev = 1;
3413         last_dev = 0;
3414
3415         /* Starting free loop ID. */
3416         loop_id = ha->min_external_loopid;
3417         for (; loop_id <= ha->max_loop_id; loop_id++) {
3418                 if (qla2x00_is_reserved_id(vha, loop_id))
3419                         continue;
3420
3421                 if (ha->current_topology == ISP_CFG_FL &&
3422                     (atomic_read(&vha->loop_down_timer) ||
3423                      LOOP_TRANSITION(vha))) {
3424                         atomic_set(&vha->loop_down_timer, 0);
3425                         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3426                         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
3427                         break;
3428                 }
3429
3430                 if (swl != NULL) {
3431                         if (last_dev) {
3432                                 wrap.b24 = new_fcport->d_id.b24;
3433                         } else {
3434                                 new_fcport->d_id.b24 = swl[swl_idx].d_id.b24;
3435                                 memcpy(new_fcport->node_name,
3436                                     swl[swl_idx].node_name, WWN_SIZE);
3437                                 memcpy(new_fcport->port_name,
3438                                     swl[swl_idx].port_name, WWN_SIZE);
3439                                 memcpy(new_fcport->fabric_port_name,
3440                                     swl[swl_idx].fabric_port_name, WWN_SIZE);
3441                                 new_fcport->fp_speed = swl[swl_idx].fp_speed;
3442                                 new_fcport->fc4_type = swl[swl_idx].fc4_type;
3443
3444                                 if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
3445                                         last_dev = 1;
3446                                 }
3447                                 swl_idx++;
3448                         }
3449                 } else {
3450                         /* Send GA_NXT to the switch */
3451                         rval = qla2x00_ga_nxt(vha, new_fcport);
3452                         if (rval != QLA_SUCCESS) {
3453                                 ql_log(ql_log_warn, vha, 0x2064,
3454                                     "SNS scan failed -- assuming "
3455                                     "zero-entry result.\n");
3456                                 list_for_each_entry_safe(fcport, fcptemp,
3457                                     new_fcports, list) {
3458                                         list_del(&fcport->list);
3459                                         kfree(fcport);
3460                                 }
3461                                 rval = QLA_SUCCESS;
3462                                 break;
3463                         }
3464                 }
3465
3466                 /* If wrap on switch device list, exit. */
3467                 if (first_dev) {
3468                         wrap.b24 = new_fcport->d_id.b24;
3469                         first_dev = 0;
3470                 } else if (new_fcport->d_id.b24 == wrap.b24) {
3471                         ql_dbg(ql_dbg_disc, vha, 0x2065,
3472                             "Device wrap (%02x%02x%02x).\n",
3473                             new_fcport->d_id.b.domain,
3474                             new_fcport->d_id.b.area,
3475                             new_fcport->d_id.b.al_pa);
3476                         break;
3477                 }
3478
3479                 /* Bypass if same physical adapter. */
3480                 if (new_fcport->d_id.b24 == base_vha->d_id.b24)
3481                         continue;
3482
3483                 /* Bypass virtual ports of the same host. */
3484                 if (qla2x00_is_a_vp_did(vha, new_fcport->d_id.b24))
3485                         continue;
3486
3487                 /* Bypass if same domain and area of adapter. */
3488                 if (((new_fcport->d_id.b24 & 0xffff00) ==
3489                     (vha->d_id.b24 & 0xffff00)) && ha->current_topology ==
3490                         ISP_CFG_FL)
3491                             continue;
3492
3493                 /* Bypass reserved domain fields. */
3494                 if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
3495                         continue;
3496
3497                 /* Bypass ports whose FCP-4 type is not FCP_SCSI */
3498                 if (ql2xgffidenable &&
3499                     (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
3500                     new_fcport->fc4_type != FC4_TYPE_UNKNOWN))
3501                         continue;
3502
3503                 /* Locate matching device in database. */
3504                 found = 0;
3505                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3506                         if (memcmp(new_fcport->port_name, fcport->port_name,
3507                             WWN_SIZE))
3508                                 continue;
3509
3510                         fcport->scan_state = QLA_FCPORT_FOUND;
3511
3512                         found++;
3513
3514                         /* Update port state. */
3515                         memcpy(fcport->fabric_port_name,
3516                             new_fcport->fabric_port_name, WWN_SIZE);
3517                         fcport->fp_speed = new_fcport->fp_speed;
3518
3519                         /*
3520                          * If address the same and state FCS_ONLINE, nothing
3521                          * changed.
3522                          */
3523                         if (fcport->d_id.b24 == new_fcport->d_id.b24 &&
3524                             atomic_read(&fcport->state) == FCS_ONLINE) {
3525                                 break;
3526                         }
3527
3528                         /*
3529                          * If device was not a fabric device before.
3530                          */
3531                         if ((fcport->flags & FCF_FABRIC_DEVICE) == 0) {
3532                                 fcport->d_id.b24 = new_fcport->d_id.b24;
3533                                 qla2x00_clear_loop_id(fcport);
3534                                 fcport->flags |= (FCF_FABRIC_DEVICE |
3535                                     FCF_LOGIN_NEEDED);
3536                                 break;
3537                         }
3538
3539                         /*
3540                          * Port ID changed or device was marked to be updated;
3541                          * Log it out if still logged in and mark it for
3542                          * relogin later.
3543                          */
3544                         fcport->d_id.b24 = new_fcport->d_id.b24;
3545                         fcport->flags |= FCF_LOGIN_NEEDED;
3546                         if (fcport->loop_id != FC_NO_LOOP_ID &&
3547                             (fcport->flags & FCF_FCP2_DEVICE) == 0 &&
3548                             (fcport->flags & FCF_ASYNC_SENT) == 0 &&
3549                             fcport->port_type != FCT_INITIATOR &&
3550                             fcport->port_type != FCT_BROADCAST) {
3551                                 ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3552                                     fcport->d_id.b.domain, fcport->d_id.b.area,
3553                                     fcport->d_id.b.al_pa);
3554                                 qla2x00_clear_loop_id(fcport);
3555                         }
3556
3557                         break;
3558                 }
3559
3560                 if (found)
3561                         continue;
3562                 /* If device was not in our fcports list, then add it. */
3563                 list_add_tail(&new_fcport->list, new_fcports);
3564
3565                 /* Allocate a new replacement fcport. */
3566                 nxt_d_id.b24 = new_fcport->d_id.b24;
3567                 new_fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
3568                 if (new_fcport == NULL) {
3569                         ql_log(ql_log_warn, vha, 0x2066,
3570                             "Memory allocation failed for fcport.\n");
3571                         return (QLA_MEMORY_ALLOC_FAILED);
3572                 }
3573                 new_fcport->flags |= (FCF_FABRIC_DEVICE | FCF_LOGIN_NEEDED);
3574                 new_fcport->d_id.b24 = nxt_d_id.b24;
3575         }
3576
3577         kfree(new_fcport);
3578
3579         return (rval);
3580 }
3581
3582 /*
3583  * qla2x00_find_new_loop_id
3584  *      Scan through our port list and find a new usable loop ID.
3585  *
3586  * Input:
3587  *      ha:     adapter state pointer.
3588  *      dev:    port structure pointer.
3589  *
3590  * Returns:
3591  *      qla2x00 local function return status code.
3592  *
3593  * Context:
3594  *      Kernel context.
3595  */
3596 int
3597 qla2x00_find_new_loop_id(scsi_qla_host_t *vha, fc_port_t *dev)
3598 {
3599         int     rval;
3600         struct qla_hw_data *ha = vha->hw;
3601         unsigned long flags = 0;
3602
3603         rval = QLA_SUCCESS;
3604
3605         spin_lock_irqsave(&ha->vport_slock, flags);
3606
3607         dev->loop_id = find_first_zero_bit(ha->loop_id_map,
3608             LOOPID_MAP_SIZE);
3609         if (dev->loop_id >= LOOPID_MAP_SIZE ||
3610             qla2x00_is_reserved_id(vha, dev->loop_id)) {
3611                 dev->loop_id = FC_NO_LOOP_ID;
3612                 rval = QLA_FUNCTION_FAILED;
3613         } else
3614                 set_bit(dev->loop_id, ha->loop_id_map);
3615
3616         spin_unlock_irqrestore(&ha->vport_slock, flags);
3617
3618         if (rval == QLA_SUCCESS)
3619                 ql_dbg(ql_dbg_disc, dev->vha, 0x2086,
3620                     "Assigning new loopid=%x, portid=%x.\n",
3621                     dev->loop_id, dev->d_id.b24);
3622         else
3623                 ql_log(ql_log_warn, dev->vha, 0x2087,
3624                     "No loop_id's available, portid=%x.\n",
3625                     dev->d_id.b24);
3626
3627         return (rval);
3628 }
3629
3630 /*
3631  * qla2x00_fabric_dev_login
3632  *      Login fabric target device and update FC port database.
3633  *
3634  * Input:
3635  *      ha:             adapter state pointer.
3636  *      fcport:         port structure list pointer.
3637  *      next_loopid:    contains value of a new loop ID that can be used
3638  *                      by the next login attempt.
3639  *
3640  * Returns:
3641  *      qla2x00 local function return status code.
3642  *
3643  * Context:
3644  *      Kernel context.
3645  */
3646 static int
3647 qla2x00_fabric_dev_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3648     uint16_t *next_loopid)
3649 {
3650         int     rval;
3651         int     retry;
3652         uint8_t opts;
3653         struct qla_hw_data *ha = vha->hw;
3654
3655         rval = QLA_SUCCESS;
3656         retry = 0;
3657
3658         if (IS_ALOGIO_CAPABLE(ha)) {
3659                 if (fcport->flags & FCF_ASYNC_SENT)
3660                         return rval;
3661                 fcport->flags |= FCF_ASYNC_SENT;
3662                 rval = qla2x00_post_async_login_work(vha, fcport, NULL);
3663                 if (!rval)
3664                         return rval;
3665         }
3666
3667         fcport->flags &= ~FCF_ASYNC_SENT;
3668         rval = qla2x00_fabric_login(vha, fcport, next_loopid);
3669         if (rval == QLA_SUCCESS) {
3670                 /* Send an ADISC to FCP2 devices.*/
3671                 opts = 0;
3672                 if (fcport->flags & FCF_FCP2_DEVICE)
3673                         opts |= BIT_1;
3674                 rval = qla2x00_get_port_database(vha, fcport, opts);
3675                 if (rval != QLA_SUCCESS) {
3676                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3677                             fcport->d_id.b.domain, fcport->d_id.b.area,
3678                             fcport->d_id.b.al_pa);
3679                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3680                 } else {
3681                         qla2x00_update_fcport(vha, fcport);
3682                 }
3683         } else {
3684                 /* Retry Login. */
3685                 qla2x00_mark_device_lost(vha, fcport, 1, 0);
3686         }
3687
3688         return (rval);
3689 }
3690
3691 /*
3692  * qla2x00_fabric_login
3693  *      Issue fabric login command.
3694  *
3695  * Input:
3696  *      ha = adapter block pointer.
3697  *      device = pointer to FC device type structure.
3698  *
3699  * Returns:
3700  *      0 - Login successfully
3701  *      1 - Login failed
3702  *      2 - Initiator device
3703  *      3 - Fatal error
3704  */
3705 int
3706 qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
3707     uint16_t *next_loopid)
3708 {
3709         int     rval;
3710         int     retry;
3711         uint16_t tmp_loopid;
3712         uint16_t mb[MAILBOX_REGISTER_COUNT];
3713         struct qla_hw_data *ha = vha->hw;
3714
3715         retry = 0;
3716         tmp_loopid = 0;
3717
3718         for (;;) {
3719                 ql_dbg(ql_dbg_disc, vha, 0x2000,
3720                     "Trying Fabric Login w/loop id 0x%04x for port "
3721                     "%02x%02x%02x.\n",
3722                     fcport->loop_id, fcport->d_id.b.domain,
3723                     fcport->d_id.b.area, fcport->d_id.b.al_pa);
3724
3725                 /* Login fcport on switch. */
3726                 rval = ha->isp_ops->fabric_login(vha, fcport->loop_id,
3727                     fcport->d_id.b.domain, fcport->d_id.b.area,
3728                     fcport->d_id.b.al_pa, mb, BIT_0);
3729                 if (rval != QLA_SUCCESS) {
3730                         return rval;
3731                 }
3732                 if (mb[0] == MBS_PORT_ID_USED) {
3733                         /*
3734                          * Device has another loop ID.  The firmware team
3735                          * recommends the driver perform an implicit login with
3736                          * the specified ID again. The ID we just used is save
3737                          * here so we return with an ID that can be tried by
3738                          * the next login.
3739                          */
3740                         retry++;
3741                         tmp_loopid = fcport->loop_id;
3742                         fcport->loop_id = mb[1];
3743
3744                         ql_dbg(ql_dbg_disc, vha, 0x2001,
3745                             "Fabric Login: port in use - next loop "
3746                             "id=0x%04x, port id= %02x%02x%02x.\n",
3747                             fcport->loop_id, fcport->d_id.b.domain,
3748                             fcport->d_id.b.area, fcport->d_id.b.al_pa);
3749
3750                 } else if (mb[0] == MBS_COMMAND_COMPLETE) {
3751                         /*
3752                          * Login succeeded.
3753                          */
3754                         if (retry) {
3755                                 /* A retry occurred before. */
3756                                 *next_loopid = tmp_loopid;
3757                         } else {
3758                                 /*
3759                                  * No retry occurred before. Just increment the
3760                                  * ID value for next login.
3761                                  */
3762                                 *next_loopid = (fcport->loop_id + 1);
3763                         }
3764
3765                         if (mb[1] & BIT_0) {
3766                                 fcport->port_type = FCT_INITIATOR;
3767                         } else {
3768                                 fcport->port_type = FCT_TARGET;
3769                                 if (mb[1] & BIT_1) {
3770                                         fcport->flags |= FCF_FCP2_DEVICE;
3771                                 }
3772                         }
3773
3774                         if (mb[10] & BIT_0)
3775                                 fcport->supported_classes |= FC_COS_CLASS2;
3776                         if (mb[10] & BIT_1)
3777                                 fcport->supported_classes |= FC_COS_CLASS3;
3778
3779                         if (IS_FWI2_CAPABLE(ha)) {
3780                                 if (mb[10] & BIT_7)
3781                                         fcport->flags |=
3782                                             FCF_CONF_COMP_SUPPORTED;
3783                         }
3784
3785                         rval = QLA_SUCCESS;
3786                         break;
3787                 } else if (mb[0] == MBS_LOOP_ID_USED) {
3788                         /*
3789                          * Loop ID already used, try next loop ID.
3790                          */
3791                         fcport->loop_id++;
3792                         rval = qla2x00_find_new_loop_id(vha, fcport);
3793                         if (rval != QLA_SUCCESS) {
3794                                 /* Ran out of loop IDs to use */
3795                                 break;
3796                         }
3797                 } else if (mb[0] == MBS_COMMAND_ERROR) {
3798                         /*
3799                          * Firmware possibly timed out during login. If NO
3800                          * retries are left to do then the device is declared
3801                          * dead.
3802                          */
3803                         *next_loopid = fcport->loop_id;
3804                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3805                             fcport->d_id.b.domain, fcport->d_id.b.area,
3806                             fcport->d_id.b.al_pa);
3807                         qla2x00_mark_device_lost(vha, fcport, 1, 0);
3808
3809                         rval = 1;
3810                         break;
3811                 } else {
3812                         /*
3813                          * unrecoverable / not handled error
3814                          */
3815                         ql_dbg(ql_dbg_disc, vha, 0x2002,
3816                             "Failed=%x port_id=%02x%02x%02x loop_id=%x "
3817                             "jiffies=%lx.\n", mb[0], fcport->d_id.b.domain,
3818                             fcport->d_id.b.area, fcport->d_id.b.al_pa,
3819                             fcport->loop_id, jiffies);
3820
3821                         *next_loopid = fcport->loop_id;
3822                         ha->isp_ops->fabric_logout(vha, fcport->loop_id,
3823                             fcport->d_id.b.domain, fcport->d_id.b.area,
3824                             fcport->d_id.b.al_pa);
3825                         qla2x00_clear_loop_id(fcport);
3826                         fcport->login_retry = 0;
3827
3828                         rval = 3;
3829                         break;
3830                 }
3831         }
3832
3833         return (rval);
3834 }
3835
3836 /*
3837  * qla2x00_local_device_login
3838  *      Issue local device login command.
3839  *
3840  * Input:
3841  *      ha = adapter block pointer.
3842  *      loop_id = loop id of device to login to.
3843  *
3844  * Returns (Where's the #define!!!!):
3845  *      0 - Login successfully
3846  *      1 - Login failed
3847  *      3 - Fatal error
3848  */
3849 int
3850 qla2x00_local_device_login(scsi_qla_host_t *vha, fc_port_t *fcport)
3851 {
3852         int             rval;
3853         uint16_t        mb[MAILBOX_REGISTER_COUNT];
3854
3855         memset(mb, 0, sizeof(mb));
3856         rval = qla2x00_login_local_device(vha, fcport, mb, BIT_0);
3857         if (rval == QLA_SUCCESS) {
3858                 /* Interrogate mailbox registers for any errors */
3859                 if (mb[0] == MBS_COMMAND_ERROR)
3860                         rval = 1;
3861                 else if (mb[0] == MBS_COMMAND_PARAMETER_ERROR)
3862                         /* device not in PCB table */
3863                         rval = 3;
3864         }
3865
3866         return (rval);
3867 }
3868
3869 /*
3870  *  qla2x00_loop_resync
3871  *      Resync with fibre channel devices.
3872  *
3873  * Input:
3874  *      ha = adapter block pointer.
3875  *
3876  * Returns:
3877  *      0 = success
3878  */
3879 int
3880 qla2x00_loop_resync(scsi_qla_host_t *vha)
3881 {
3882         int rval = QLA_SUCCESS;
3883         uint32_t wait_time;
3884         struct req_que *req;
3885         struct rsp_que *rsp;
3886
3887         if (vha->hw->flags.cpu_affinity_enabled)
3888                 req = vha->hw->req_q_map[0];
3889         else
3890                 req = vha->req;
3891         rsp = req->rsp;
3892
3893         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
3894         if (vha->flags.online) {
3895                 if (!(rval = qla2x00_fw_ready(vha))) {
3896                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
3897                         wait_time = 256;
3898                         do {
3899                                 /* Issue a marker after FW becomes ready. */
3900                                 qla2x00_marker(vha, req, rsp, 0, 0,
3901                                         MK_SYNC_ALL);
3902                                 vha->marker_needed = 0;
3903
3904                                 /* Remap devices on Loop. */
3905                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
3906
3907                                 qla2x00_configure_loop(vha);
3908                                 wait_time--;
3909                         } while (!atomic_read(&vha->loop_down_timer) &&
3910                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3911                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
3912                                 &vha->dpc_flags)));
3913                 }
3914         }
3915
3916         if (test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
3917                 return (QLA_FUNCTION_FAILED);
3918
3919         if (rval)
3920                 ql_dbg(ql_dbg_disc, vha, 0x206c,
3921                     "%s *** FAILED ***.\n", __func__);
3922
3923         return (rval);
3924 }
3925
3926 /*
3927 * qla2x00_perform_loop_resync
3928 * Description: This function will set the appropriate flags and call
3929 *              qla2x00_loop_resync. If successful loop will be resynced
3930 * Arguments : scsi_qla_host_t pointer
3931 * returm    : Success or Failure
3932 */
3933
3934 int qla2x00_perform_loop_resync(scsi_qla_host_t *ha)
3935 {
3936         int32_t rval = 0;
3937
3938         if (!test_and_set_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) {
3939                 /*Configure the flags so that resync happens properly*/
3940                 atomic_set(&ha->loop_down_timer, 0);
3941                 if (!(ha->device_flags & DFLG_NO_CABLE)) {
3942                         atomic_set(&ha->loop_state, LOOP_UP);
3943                         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
3944                         set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
3945                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
3946
3947                         rval = qla2x00_loop_resync(ha);
3948                 } else
3949                         atomic_set(&ha->loop_state, LOOP_DEAD);
3950
3951                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
3952         }
3953
3954         return rval;
3955 }
3956
3957 void
3958 qla2x00_update_fcports(scsi_qla_host_t *base_vha)
3959 {
3960         fc_port_t *fcport;
3961         struct scsi_qla_host *vha;
3962         struct qla_hw_data *ha = base_vha->hw;
3963         unsigned long flags;
3964
3965         spin_lock_irqsave(&ha->vport_slock, flags);
3966         /* Go with deferred removal of rport references. */
3967         list_for_each_entry(vha, &base_vha->hw->vp_list, list) {
3968                 atomic_inc(&vha->vref_count);
3969                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3970                         if (fcport->drport &&
3971                             atomic_read(&fcport->state) != FCS_UNCONFIGURED) {
3972                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
3973
3974                                 qla2x00_rport_del(fcport);
3975
3976                                 spin_lock_irqsave(&ha->vport_slock, flags);
3977                         }
3978                 }
3979                 atomic_dec(&vha->vref_count);
3980         }
3981         spin_unlock_irqrestore(&ha->vport_slock, flags);
3982 }
3983
3984 /* Assumes idc_lock always held on entry */
3985 void
3986 qla83xx_reset_ownership(scsi_qla_host_t *vha)
3987 {
3988         struct qla_hw_data *ha = vha->hw;
3989         uint32_t drv_presence, drv_presence_mask;
3990         uint32_t dev_part_info1, dev_part_info2, class_type;
3991         uint32_t class_type_mask = 0x3;
3992         uint16_t fcoe_other_function = 0xffff, i;
3993
3994         qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
3995
3996         qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO1, &dev_part_info1);
3997         qla83xx_rd_reg(vha, QLA83XX_DEV_PARTINFO2, &dev_part_info2);
3998         for (i = 0; i < 8; i++) {
3999                 class_type = ((dev_part_info1 >> (i * 4)) & class_type_mask);
4000                 if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
4001                     (i != ha->portnum)) {
4002                         fcoe_other_function = i;
4003                         break;
4004                 }
4005         }
4006         if (fcoe_other_function == 0xffff) {
4007                 for (i = 0; i < 8; i++) {
4008                         class_type = ((dev_part_info2 >> (i * 4)) &
4009                             class_type_mask);
4010                         if ((class_type == QLA83XX_CLASS_TYPE_FCOE) &&
4011                             ((i + 8) != ha->portnum)) {
4012                                 fcoe_other_function = i + 8;
4013                                 break;
4014                         }
4015                 }
4016         }
4017         /*
4018          * Prepare drv-presence mask based on fcoe functions present.
4019          * However consider only valid physical fcoe function numbers (0-15).
4020          */
4021         drv_presence_mask = ~((1 << (ha->portnum)) |
4022                         ((fcoe_other_function == 0xffff) ?
4023                          0 : (1 << (fcoe_other_function))));
4024
4025         /* We are the reset owner iff:
4026          *    - No other protocol drivers present.
4027          *    - This is the lowest among fcoe functions. */
4028         if (!(drv_presence & drv_presence_mask) &&
4029                         (ha->portnum < fcoe_other_function)) {
4030                 ql_dbg(ql_dbg_p3p, vha, 0xb07f,
4031                     "This host is Reset owner.\n");
4032                 ha->flags.nic_core_reset_owner = 1;
4033         }
4034 }
4035
4036 static int
4037 __qla83xx_set_drv_ack(scsi_qla_host_t *vha)
4038 {
4039         int rval = QLA_SUCCESS;
4040         struct qla_hw_data *ha = vha->hw;
4041         uint32_t drv_ack;
4042
4043         rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4044         if (rval == QLA_SUCCESS) {
4045                 drv_ack |= (1 << ha->portnum);
4046                 rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
4047         }
4048
4049         return rval;
4050 }
4051
4052 static int
4053 __qla83xx_clear_drv_ack(scsi_qla_host_t *vha)
4054 {
4055         int rval = QLA_SUCCESS;
4056         struct qla_hw_data *ha = vha->hw;
4057         uint32_t drv_ack;
4058
4059         rval = qla83xx_rd_reg(vha, QLA83XX_IDC_DRIVER_ACK, &drv_ack);
4060         if (rval == QLA_SUCCESS) {
4061                 drv_ack &= ~(1 << ha->portnum);
4062                 rval = qla83xx_wr_reg(vha, QLA83XX_IDC_DRIVER_ACK, drv_ack);
4063         }
4064
4065         return rval;
4066 }
4067
4068 static const char *
4069 qla83xx_dev_state_to_string(uint32_t dev_state)
4070 {
4071         switch (dev_state) {
4072         case QLA8XXX_DEV_COLD:
4073                 return "COLD/RE-INIT";
4074         case QLA8XXX_DEV_INITIALIZING:
4075                 return "INITIALIZING";
4076         case QLA8XXX_DEV_READY:
4077                 return "READY";
4078         case QLA8XXX_DEV_NEED_RESET:
4079                 return "NEED RESET";
4080         case QLA8XXX_DEV_NEED_QUIESCENT:
4081                 return "NEED QUIESCENT";
4082         case QLA8XXX_DEV_FAILED:
4083                 return "FAILED";
4084         case QLA8XXX_DEV_QUIESCENT:
4085                 return "QUIESCENT";
4086         default:
4087                 return "Unknown";
4088         }
4089 }
4090
4091 /* Assumes idc-lock always held on entry */
4092 void
4093 qla83xx_idc_audit(scsi_qla_host_t *vha, int audit_type)
4094 {
4095         struct qla_hw_data *ha = vha->hw;
4096         uint32_t idc_audit_reg = 0, duration_secs = 0;
4097
4098         switch (audit_type) {
4099         case IDC_AUDIT_TIMESTAMP:
4100                 ha->idc_audit_ts = (jiffies_to_msecs(jiffies) / 1000);
4101                 idc_audit_reg = (ha->portnum) |
4102                     (IDC_AUDIT_TIMESTAMP << 7) | (ha->idc_audit_ts << 8);
4103                 qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
4104                 break;
4105
4106         case IDC_AUDIT_COMPLETION:
4107                 duration_secs = ((jiffies_to_msecs(jiffies) -
4108                     jiffies_to_msecs(ha->idc_audit_ts)) / 1000);
4109                 idc_audit_reg = (ha->portnum) |
4110                     (IDC_AUDIT_COMPLETION << 7) | (duration_secs << 8);
4111                 qla83xx_wr_reg(vha, QLA83XX_IDC_AUDIT, idc_audit_reg);
4112                 break;
4113
4114         default:
4115                 ql_log(ql_log_warn, vha, 0xb078,
4116                     "Invalid audit type specified.\n");
4117                 break;
4118         }
4119 }
4120
4121 /* Assumes idc_lock always held on entry */
4122 static int
4123 qla83xx_initiating_reset(scsi_qla_host_t *vha)
4124 {
4125         struct qla_hw_data *ha = vha->hw;
4126         uint32_t  idc_control, dev_state;
4127
4128         __qla83xx_get_idc_control(vha, &idc_control);
4129         if ((idc_control & QLA83XX_IDC_RESET_DISABLED)) {
4130                 ql_log(ql_log_info, vha, 0xb080,
4131                     "NIC Core reset has been disabled. idc-control=0x%x\n",
4132                     idc_control);
4133                 return QLA_FUNCTION_FAILED;
4134         }
4135
4136         /* Set NEED-RESET iff in READY state and we are the reset-owner */
4137         qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4138         if (ha->flags.nic_core_reset_owner && dev_state == QLA8XXX_DEV_READY) {
4139                 qla83xx_wr_reg(vha, QLA83XX_IDC_DEV_STATE,
4140                     QLA8XXX_DEV_NEED_RESET);
4141                 ql_log(ql_log_info, vha, 0xb056, "HW State: NEED RESET.\n");
4142                 qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP);
4143         } else {
4144                 const char *state = qla83xx_dev_state_to_string(dev_state);
4145                 ql_log(ql_log_info, vha, 0xb057, "HW State: %s.\n", state);
4146
4147                 /* SV: XXX: Is timeout required here? */
4148                 /* Wait for IDC state change READY -> NEED_RESET */
4149                 while (dev_state == QLA8XXX_DEV_READY) {
4150                         qla83xx_idc_unlock(vha, 0);
4151                         msleep(200);
4152                         qla83xx_idc_lock(vha, 0);
4153                         qla83xx_rd_reg(vha, QLA83XX_IDC_DEV_STATE, &dev_state);
4154                 }
4155         }
4156
4157         /* Send IDC ack by writing to drv-ack register */
4158         __qla83xx_set_drv_ack(vha);
4159
4160         return QLA_SUCCESS;
4161 }
4162
4163 int
4164 __qla83xx_set_idc_control(scsi_qla_host_t *vha, uint32_t idc_control)
4165 {
4166         return qla83xx_wr_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
4167 }
4168
4169 int
4170 __qla83xx_get_idc_control(scsi_qla_host_t *vha, uint32_t *idc_control)
4171 {
4172         return qla83xx_rd_reg(vha, QLA83XX_IDC_CONTROL, idc_control);
4173 }
4174
4175 static int
4176 qla83xx_check_driver_presence(scsi_qla_host_t *vha)
4177 {
4178         uint32_t drv_presence = 0;
4179         struct qla_hw_data *ha = vha->hw;
4180
4181         qla83xx_rd_reg(vha, QLA83XX_IDC_DRV_PRESENCE, &drv_presence);
4182         if (drv_presence & (1 << ha->portnum))
4183                 return QLA_SUCCESS;
4184         else
4185                 return QLA_TEST_FAILED;
4186 }
4187
4188 int
4189 qla83xx_nic_core_reset(scsi_qla_host_t *vha)
4190 {
4191         int rval = QLA_SUCCESS;
4192         struct qla_hw_data *ha = vha->hw;
4193
4194         ql_dbg(ql_dbg_p3p, vha, 0xb058,
4195             "Entered  %s().\n", __func__);
4196
4197         if (vha->device_flags & DFLG_DEV_FAILED) {
4198                 ql_log(ql_log_warn, vha, 0xb059,
4199                     "Device in unrecoverable FAILED state.\n");
4200                 return QLA_FUNCTION_FAILED;
4201         }
4202
4203         qla83xx_idc_lock(vha, 0);
4204
4205         if (qla83xx_check_driver_presence(vha) != QLA_SUCCESS) {
4206                 ql_log(ql_log_warn, vha, 0xb05a,
4207                     "Function=0x%x has been removed from IDC participation.\n",
4208                     ha->portnum);
4209                 rval = QLA_FUNCTION_FAILED;
4210                 goto exit;
4211         }
4212
4213         qla83xx_reset_ownership(vha);
4214
4215         rval = qla83xx_initiating_reset(vha);
4216
4217         /*
4218          * Perform reset if we are the reset-owner,
4219          * else wait till IDC state changes to READY/FAILED.
4220          */
4221         if (rval == QLA_SUCCESS) {
4222                 rval = qla83xx_idc_state_handler(vha);
4223
4224                 if (rval == QLA_SUCCESS)
4225                         ha->flags.nic_core_hung = 0;
4226                 __qla83xx_clear_drv_ack(vha);
4227         }
4228
4229 exit:
4230         qla83xx_idc_unlock(vha, 0);
4231
4232         ql_dbg(ql_dbg_p3p, vha, 0xb05b, "Exiting %s.\n", __func__);
4233
4234         return rval;
4235 }
4236
4237 int
4238 qla2xxx_mctp_dump(scsi_qla_host_t *vha)
4239 {
4240         struct qla_hw_data *ha = vha->hw;
4241         int rval = QLA_FUNCTION_FAILED;
4242
4243         if (!IS_MCTP_CAPABLE(ha)) {
4244                 /* This message can be removed from the final version */
4245                 ql_log(ql_log_info, vha, 0x506d,
4246                     "This board is not MCTP capable\n");
4247                 return rval;
4248         }
4249
4250         if (!ha->mctp_dump) {
4251                 ha->mctp_dump = dma_alloc_coherent(&ha->pdev->dev,
4252                     MCTP_DUMP_SIZE, &ha->mctp_dump_dma, GFP_KERNEL);
4253
4254                 if (!ha->mctp_dump) {
4255                         ql_log(ql_log_warn, vha, 0x506e,
4256                             "Failed to allocate memory for mctp dump\n");
4257                         return rval;
4258                 }
4259         }
4260
4261 #define MCTP_DUMP_STR_ADDR      0x00000000
4262         rval = qla2x00_dump_mctp_data(vha, ha->mctp_dump_dma,
4263             MCTP_DUMP_STR_ADDR, MCTP_DUMP_SIZE/4);
4264         if (rval != QLA_SUCCESS) {
4265                 ql_log(ql_log_warn, vha, 0x506f,
4266                     "Failed to capture mctp dump\n");
4267         } else {
4268                 ql_log(ql_log_info, vha, 0x5070,
4269                     "Mctp dump capture for host (%ld/%p).\n",
4270                     vha->host_no, ha->mctp_dump);
4271                 ha->mctp_dumped = 1;
4272         }
4273
4274         if (!ha->flags.nic_core_reset_hdlr_active && !ha->portnum) {
4275                 ha->flags.nic_core_reset_hdlr_active = 1;
4276                 rval = qla83xx_restart_nic_firmware(vha);
4277                 if (rval)
4278                         /* NIC Core reset failed. */
4279                         ql_log(ql_log_warn, vha, 0x5071,
4280                             "Failed to restart nic firmware\n");
4281                 else
4282                         ql_dbg(ql_dbg_p3p, vha, 0xb084,
4283                             "Restarted NIC firmware successfully.\n");
4284                 ha->flags.nic_core_reset_hdlr_active = 0;
4285         }
4286
4287         return rval;
4288
4289 }
4290
4291 /*
4292 * qla2x00_quiesce_io
4293 * Description: This function will block the new I/Os
4294 *              Its not aborting any I/Os as context
4295 *              is not destroyed during quiescence
4296 * Arguments: scsi_qla_host_t
4297 * return   : void
4298 */
4299 void
4300 qla2x00_quiesce_io(scsi_qla_host_t *vha)
4301 {
4302         struct qla_hw_data *ha = vha->hw;
4303         struct scsi_qla_host *vp;
4304
4305         ql_dbg(ql_dbg_dpc, vha, 0x401d,
4306             "Quiescing I/O - ha=%p.\n", ha);
4307
4308         atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
4309         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
4310                 atomic_set(&vha->loop_state, LOOP_DOWN);
4311                 qla2x00_mark_all_devices_lost(vha, 0);
4312                 list_for_each_entry(vp, &ha->vp_list, list)
4313                         qla2x00_mark_all_devices_lost(vp, 0);
4314         } else {
4315                 if (!atomic_read(&vha->loop_down_timer))
4316                         atomic_set(&vha->loop_down_timer,
4317                                         LOOP_DOWN_TIME);
4318         }
4319         /* Wait for pending cmds to complete */
4320         qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST);
4321 }
4322
4323 void
4324 qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha)
4325 {
4326         struct qla_hw_data *ha = vha->hw;
4327         struct scsi_qla_host *vp;
4328         unsigned long flags;
4329         fc_port_t *fcport;
4330
4331         /* For ISP82XX, driver waits for completion of the commands.
4332          * online flag should be set.
4333          */
4334         if (!IS_QLA82XX(ha))
4335                 vha->flags.online = 0;
4336         ha->flags.chip_reset_done = 0;
4337         clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4338         vha->qla_stats.total_isp_aborts++;
4339
4340         ql_log(ql_log_info, vha, 0x00af,
4341             "Performing ISP error recovery - ha=%p.\n", ha);
4342
4343         /* For ISP82XX, reset_chip is just disabling interrupts.
4344          * Driver waits for the completion of the commands.
4345          * the interrupts need to be enabled.
4346          */
4347         if (!IS_QLA82XX(ha))
4348                 ha->isp_ops->reset_chip(vha);
4349
4350         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
4351         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
4352                 atomic_set(&vha->loop_state, LOOP_DOWN);
4353                 qla2x00_mark_all_devices_lost(vha, 0);
4354
4355                 spin_lock_irqsave(&ha->vport_slock, flags);
4356                 list_for_each_entry(vp, &ha->vp_list, list) {
4357                         atomic_inc(&vp->vref_count);
4358                         spin_unlock_irqrestore(&ha->vport_slock, flags);
4359
4360                         qla2x00_mark_all_devices_lost(vp, 0);
4361
4362                         spin_lock_irqsave(&ha->vport_slock, flags);
4363                         atomic_dec(&vp->vref_count);
4364                 }
4365                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4366         } else {
4367                 if (!atomic_read(&vha->loop_down_timer))
4368                         atomic_set(&vha->loop_down_timer,
4369                             LOOP_DOWN_TIME);
4370         }
4371
4372         /* Clear all async request states across all VPs. */
4373         list_for_each_entry(fcport, &vha->vp_fcports, list)
4374                 fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
4375         spin_lock_irqsave(&ha->vport_slock, flags);
4376         list_for_each_entry(vp, &ha->vp_list, list) {
4377                 atomic_inc(&vp->vref_count);
4378                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4379
4380                 list_for_each_entry(fcport, &vp->vp_fcports, list)
4381                         fcport->flags &= ~(FCF_LOGIN_NEEDED | FCF_ASYNC_SENT);
4382
4383                 spin_lock_irqsave(&ha->vport_slock, flags);
4384                 atomic_dec(&vp->vref_count);
4385         }
4386         spin_unlock_irqrestore(&ha->vport_slock, flags);
4387
4388         if (!ha->flags.eeh_busy) {
4389                 /* Make sure for ISP 82XX IO DMA is complete */
4390                 if (IS_QLA82XX(ha)) {
4391                         qla82xx_chip_reset_cleanup(vha);
4392                         ql_log(ql_log_info, vha, 0x00b4,
4393                             "Done chip reset cleanup.\n");
4394
4395                         /* Done waiting for pending commands.
4396                          * Reset the online flag.
4397                          */
4398                         vha->flags.online = 0;
4399                 }
4400
4401                 /* Requeue all commands in outstanding command list. */
4402                 qla2x00_abort_all_cmds(vha, DID_RESET << 16);
4403         }
4404 }
4405
4406 /*
4407 *  qla2x00_abort_isp
4408 *      Resets ISP and aborts all outstanding commands.
4409 *
4410 * Input:
4411 *      ha           = adapter block pointer.
4412 *
4413 * Returns:
4414 *      0 = success
4415 */
4416 int
4417 qla2x00_abort_isp(scsi_qla_host_t *vha)
4418 {
4419         int rval;
4420         uint8_t        status = 0;
4421         struct qla_hw_data *ha = vha->hw;
4422         struct scsi_qla_host *vp;
4423         struct req_que *req = ha->req_q_map[0];
4424         unsigned long flags;
4425
4426         if (vha->flags.online) {
4427                 qla2x00_abort_isp_cleanup(vha);
4428
4429                 if (IS_QLA8031(ha)) {
4430                         ql_dbg(ql_dbg_p3p, vha, 0xb05c,
4431                             "Clearing fcoe driver presence.\n");
4432                         if (qla83xx_clear_drv_presence(vha) != QLA_SUCCESS)
4433                                 ql_dbg(ql_dbg_p3p, vha, 0xb073,
4434                                     "Error while clearing DRV-Presence.\n");
4435                 }
4436
4437                 if (unlikely(pci_channel_offline(ha->pdev) &&
4438                     ha->flags.pci_channel_io_perm_failure)) {
4439                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4440                         status = 0;
4441                         return status;
4442                 }
4443
4444                 ha->isp_ops->get_flash_version(vha, req->ring);
4445
4446                 ha->isp_ops->nvram_config(vha);
4447
4448                 if (!qla2x00_restart_isp(vha)) {
4449                         clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4450
4451                         if (!atomic_read(&vha->loop_down_timer)) {
4452                                 /*
4453                                  * Issue marker command only when we are going
4454                                  * to start the I/O .
4455                                  */
4456                                 vha->marker_needed = 1;
4457                         }
4458
4459                         vha->flags.online = 1;
4460
4461                         ha->isp_ops->enable_intrs(ha);
4462
4463                         ha->isp_abort_cnt = 0;
4464                         clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4465
4466                         if (IS_QLA81XX(ha) || IS_QLA8031(ha))
4467                                 qla2x00_get_fw_version(vha);
4468                         if (ha->fce) {
4469                                 ha->flags.fce_enabled = 1;
4470                                 memset(ha->fce, 0,
4471                                     fce_calc_size(ha->fce_bufs));
4472                                 rval = qla2x00_enable_fce_trace(vha,
4473                                     ha->fce_dma, ha->fce_bufs, ha->fce_mb,
4474                                     &ha->fce_bufs);
4475                                 if (rval) {
4476                                         ql_log(ql_log_warn, vha, 0x8033,
4477                                             "Unable to reinitialize FCE "
4478                                             "(%d).\n", rval);
4479                                         ha->flags.fce_enabled = 0;
4480                                 }
4481                         }
4482
4483                         if (ha->eft) {
4484                                 memset(ha->eft, 0, EFT_SIZE);
4485                                 rval = qla2x00_enable_eft_trace(vha,
4486                                     ha->eft_dma, EFT_NUM_BUFFERS);
4487                                 if (rval) {
4488                                         ql_log(ql_log_warn, vha, 0x8034,
4489                                             "Unable to reinitialize EFT "
4490                                             "(%d).\n", rval);
4491                                 }
4492                         }
4493                 } else {        /* failed the ISP abort */
4494                         vha->flags.online = 1;
4495                         if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
4496                                 if (ha->isp_abort_cnt == 0) {
4497                                         ql_log(ql_log_fatal, vha, 0x8035,
4498                                             "ISP error recover failed - "
4499                                             "board disabled.\n");
4500                                         /*
4501                                          * The next call disables the board
4502                                          * completely.
4503                                          */
4504                                         ha->isp_ops->reset_adapter(vha);
4505                                         vha->flags.online = 0;
4506                                         clear_bit(ISP_ABORT_RETRY,
4507                                             &vha->dpc_flags);
4508                                         status = 0;
4509                                 } else { /* schedule another ISP abort */
4510                                         ha->isp_abort_cnt--;
4511                                         ql_dbg(ql_dbg_taskm, vha, 0x8020,
4512                                             "ISP abort - retry remaining %d.\n",
4513                                             ha->isp_abort_cnt);
4514                                         status = 1;
4515                                 }
4516                         } else {
4517                                 ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
4518                                 ql_dbg(ql_dbg_taskm, vha, 0x8021,
4519                                     "ISP error recovery - retrying (%d) "
4520                                     "more times.\n", ha->isp_abort_cnt);
4521                                 set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
4522                                 status = 1;
4523                         }
4524                 }
4525
4526         }
4527
4528         if (!status) {
4529                 ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
4530
4531                 spin_lock_irqsave(&ha->vport_slock, flags);
4532                 list_for_each_entry(vp, &ha->vp_list, list) {
4533                         if (vp->vp_idx) {
4534                                 atomic_inc(&vp->vref_count);
4535                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4536
4537                                 qla2x00_vp_abort_isp(vp);
4538
4539                                 spin_lock_irqsave(&ha->vport_slock, flags);
4540                                 atomic_dec(&vp->vref_count);
4541                         }
4542                 }
4543                 spin_unlock_irqrestore(&ha->vport_slock, flags);
4544
4545                 if (IS_QLA8031(ha)) {
4546                         ql_dbg(ql_dbg_p3p, vha, 0xb05d,
4547                             "Setting back fcoe driver presence.\n");
4548                         if (qla83xx_set_drv_presence(vha) != QLA_SUCCESS)
4549                                 ql_dbg(ql_dbg_p3p, vha, 0xb074,
4550                                     "Error while setting DRV-Presence.\n");
4551                 }
4552         } else {
4553                 ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
4554                        __func__);
4555         }
4556
4557         return(status);
4558 }
4559
4560 /*
4561 *  qla2x00_restart_isp
4562 *      restarts the ISP after a reset
4563 *
4564 * Input:
4565 *      ha = adapter block pointer.
4566 *
4567 * Returns:
4568 *      0 = success
4569 */
4570 static int
4571 qla2x00_restart_isp(scsi_qla_host_t *vha)
4572 {
4573         int status = 0;
4574         uint32_t wait_time;
4575         struct qla_hw_data *ha = vha->hw;
4576         struct req_que *req = ha->req_q_map[0];
4577         struct rsp_que *rsp = ha->rsp_q_map[0];
4578         unsigned long flags;
4579
4580         /* If firmware needs to be loaded */
4581         if (qla2x00_isp_firmware(vha)) {
4582                 vha->flags.online = 0;
4583                 status = ha->isp_ops->chip_diag(vha);
4584                 if (!status)
4585                         status = qla2x00_setup_chip(vha);
4586         }
4587
4588         if (!status && !(status = qla2x00_init_rings(vha))) {
4589                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
4590                 ha->flags.chip_reset_done = 1;
4591                 /* Initialize the queues in use */
4592                 qla25xx_init_queues(ha);
4593
4594                 status = qla2x00_fw_ready(vha);
4595                 if (!status) {
4596                         ql_dbg(ql_dbg_taskm, vha, 0x8031,
4597                             "Start configure loop status = %d.\n", status);
4598
4599                         /* Issue a marker after FW becomes ready. */
4600                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
4601
4602                         vha->flags.online = 1;
4603
4604                         /*
4605                          * Process any ATIO queue entries that came in
4606                          * while we weren't online.
4607                          */
4608                         spin_lock_irqsave(&ha->hardware_lock, flags);
4609                         if (qla_tgt_mode_enabled(vha))
4610                                 qlt_24xx_process_atio_queue(vha);
4611                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4612
4613                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
4614                         wait_time = 256;
4615                         do {
4616                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
4617                                 qla2x00_configure_loop(vha);
4618                                 wait_time--;
4619                         } while (!atomic_read(&vha->loop_down_timer) &&
4620                                 !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
4621                                 && wait_time && (test_bit(LOOP_RESYNC_NEEDED,
4622                                 &vha->dpc_flags)));
4623                 }
4624
4625                 /* if no cable then assume it's good */
4626                 if ((vha->device_flags & DFLG_NO_CABLE))
4627                         status = 0;
4628
4629                 ql_dbg(ql_dbg_taskm, vha, 0x8032,
4630                     "Configure loop done, status = 0x%x.\n", status);
4631         }
4632         return (status);
4633 }
4634
4635 static int
4636 qla25xx_init_queues(struct qla_hw_data *ha)
4637 {
4638         struct rsp_que *rsp = NULL;
4639         struct req_que *req = NULL;
4640         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
4641         int ret = -1;
4642         int i;
4643
4644         for (i = 1; i < ha->max_rsp_queues; i++) {
4645                 rsp = ha->rsp_q_map[i];
4646                 if (rsp) {
4647                         rsp->options &= ~BIT_0;
4648                         ret = qla25xx_init_rsp_que(base_vha, rsp);
4649                         if (ret != QLA_SUCCESS)
4650                                 ql_dbg(ql_dbg_init, base_vha, 0x00ff,
4651                                     "%s Rsp que: %d init failed.\n",
4652                                     __func__, rsp->id);
4653                         else
4654                                 ql_dbg(ql_dbg_init, base_vha, 0x0100,
4655                                     "%s Rsp que: %d inited.\n",
4656                                     __func__, rsp->id);
4657                 }
4658         }
4659         for (i = 1; i < ha->max_req_queues; i++) {
4660                 req = ha->req_q_map[i];
4661                 if (req) {
4662                 /* Clear outstanding commands array. */
4663                         req->options &= ~BIT_0;
4664                         ret = qla25xx_init_req_que(base_vha, req);
4665                         if (ret != QLA_SUCCESS)
4666                                 ql_dbg(ql_dbg_init, base_vha, 0x0101,
4667                                     "%s Req que: %d init failed.\n",
4668                                     __func__, req->id);
4669                         else
4670                                 ql_dbg(ql_dbg_init, base_vha, 0x0102,
4671                                     "%s Req que: %d inited.\n",
4672                                     __func__, req->id);
4673                 }
4674         }
4675         return ret;
4676 }
4677
4678 /*
4679 * qla2x00_reset_adapter
4680 *      Reset adapter.
4681 *
4682 * Input:
4683 *      ha = adapter block pointer.
4684 */
4685 void
4686 qla2x00_reset_adapter(scsi_qla_host_t *vha)
4687 {
4688         unsigned long flags = 0;
4689         struct qla_hw_data *ha = vha->hw;
4690         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
4691
4692         vha->flags.online = 0;
4693         ha->isp_ops->disable_intrs(ha);
4694
4695         spin_lock_irqsave(&ha->hardware_lock, flags);
4696         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
4697         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
4698         WRT_REG_WORD(&reg->hccr, HCCR_RELEASE_RISC);
4699         RD_REG_WORD(&reg->hccr);                        /* PCI Posting. */
4700         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4701 }
4702
4703 void
4704 qla24xx_reset_adapter(scsi_qla_host_t *vha)
4705 {
4706         unsigned long flags = 0;
4707         struct qla_hw_data *ha = vha->hw;
4708         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
4709
4710         if (IS_QLA82XX(ha))
4711                 return;
4712
4713         vha->flags.online = 0;
4714         ha->isp_ops->disable_intrs(ha);
4715
4716         spin_lock_irqsave(&ha->hardware_lock, flags);
4717         WRT_REG_DWORD(&reg->hccr, HCCRX_SET_RISC_RESET);
4718         RD_REG_DWORD(&reg->hccr);
4719         WRT_REG_DWORD(&reg->hccr, HCCRX_REL_RISC_PAUSE);
4720         RD_REG_DWORD(&reg->hccr);
4721         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4722
4723         if (IS_NOPOLLING_TYPE(ha))
4724                 ha->isp_ops->enable_intrs(ha);
4725 }
4726
4727 /* On sparc systems, obtain port and node WWN from firmware
4728  * properties.
4729  */
4730 static void qla24xx_nvram_wwn_from_ofw(scsi_qla_host_t *vha,
4731         struct nvram_24xx *nv)
4732 {
4733 #ifdef CONFIG_SPARC
4734         struct qla_hw_data *ha = vha->hw;
4735         struct pci_dev *pdev = ha->pdev;
4736         struct device_node *dp = pci_device_to_OF_node(pdev);
4737         const u8 *val;
4738         int len;
4739
4740         val = of_get_property(dp, "port-wwn", &len);
4741         if (val && len >= WWN_SIZE)
4742                 memcpy(nv->port_name, val, WWN_SIZE);
4743
4744         val = of_get_property(dp, "node-wwn", &len);
4745         if (val && len >= WWN_SIZE)
4746                 memcpy(nv->node_name, val, WWN_SIZE);
4747 #endif
4748 }
4749
4750 int
4751 qla24xx_nvram_config(scsi_qla_host_t *vha)
4752 {
4753         int   rval;
4754         struct init_cb_24xx *icb;
4755         struct nvram_24xx *nv;
4756         uint32_t *dptr;
4757         uint8_t  *dptr1, *dptr2;
4758         uint32_t chksum;
4759         uint16_t cnt;
4760         struct qla_hw_data *ha = vha->hw;
4761
4762         rval = QLA_SUCCESS;
4763         icb = (struct init_cb_24xx *)ha->init_cb;
4764         nv = ha->nvram;
4765
4766         /* Determine NVRAM starting address. */
4767         if (ha->flags.port0) {
4768                 ha->nvram_base = FA_NVRAM_FUNC0_ADDR;
4769                 ha->vpd_base = FA_NVRAM_VPD0_ADDR;
4770         } else {
4771                 ha->nvram_base = FA_NVRAM_FUNC1_ADDR;
4772                 ha->vpd_base = FA_NVRAM_VPD1_ADDR;
4773         }
4774         ha->nvram_size = sizeof(struct nvram_24xx);
4775         ha->vpd_size = FA_NVRAM_VPD_SIZE;
4776         if (IS_QLA82XX(ha))
4777                 ha->vpd_size = FA_VPD_SIZE_82XX;
4778
4779         /* Get VPD data into cache */
4780         ha->vpd = ha->nvram + VPD_OFFSET;
4781         ha->isp_ops->read_nvram(vha, (uint8_t *)ha->vpd,
4782             ha->nvram_base - FA_NVRAM_FUNC0_ADDR, FA_NVRAM_VPD_SIZE * 4);
4783
4784         /* Get NVRAM data into cache and calculate checksum. */
4785         dptr = (uint32_t *)nv;
4786         ha->isp_ops->read_nvram(vha, (uint8_t *)dptr, ha->nvram_base,
4787             ha->nvram_size);
4788         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
4789                 chksum += le32_to_cpu(*dptr++);
4790
4791         ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x006a,
4792             "Contents of NVRAM\n");
4793         ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x010d,
4794             (uint8_t *)nv, ha->nvram_size);
4795
4796         /* Bad NVRAM data, set defaults parameters. */
4797         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
4798             || nv->id[3] != ' ' ||
4799             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
4800                 /* Reset NVRAM data. */
4801                 ql_log(ql_log_warn, vha, 0x006b,
4802                     "Inconsistent NVRAM detected: checksum=0x%x id=%c "
4803                     "version=0x%x.\n", chksum, nv->id[0], nv->nvram_version);
4804                 ql_log(ql_log_warn, vha, 0x006c,
4805                     "Falling back to functioning (yet invalid -- WWPN) "
4806                     "defaults.\n");
4807
4808                 /*
4809                  * Set default initialization control block.
4810                  */
4811                 memset(nv, 0, ha->nvram_size);
4812                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
4813                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
4814                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
4815                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4816                 nv->exchange_count = __constant_cpu_to_le16(0);
4817                 nv->hard_address = __constant_cpu_to_le16(124);
4818                 nv->port_name[0] = 0x21;
4819                 nv->port_name[1] = 0x00 + ha->port_no;
4820                 nv->port_name[2] = 0x00;
4821                 nv->port_name[3] = 0xe0;
4822                 nv->port_name[4] = 0x8b;
4823                 nv->port_name[5] = 0x1c;
4824                 nv->port_name[6] = 0x55;
4825                 nv->port_name[7] = 0x86;
4826                 nv->node_name[0] = 0x20;
4827                 nv->node_name[1] = 0x00;
4828                 nv->node_name[2] = 0x00;
4829                 nv->node_name[3] = 0xe0;
4830                 nv->node_name[4] = 0x8b;
4831                 nv->node_name[5] = 0x1c;
4832                 nv->node_name[6] = 0x55;
4833                 nv->node_name[7] = 0x86;
4834                 qla24xx_nvram_wwn_from_ofw(vha, nv);
4835                 nv->login_retry_count = __constant_cpu_to_le16(8);
4836                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
4837                 nv->login_timeout = __constant_cpu_to_le16(0);
4838                 nv->firmware_options_1 =
4839                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
4840                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
4841                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
4842                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
4843                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
4844                 nv->efi_parameters = __constant_cpu_to_le32(0);
4845                 nv->reset_delay = 5;
4846                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
4847                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
4848                 nv->link_down_timeout = __constant_cpu_to_le16(30);
4849
4850                 rval = 1;
4851         }
4852
4853         if (!qla_ini_mode_enabled(vha)) {
4854                 /* Don't enable full login after initial LIP */
4855                 nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
4856                 /* Don't enable LIP full login for initiator */
4857                 nv->host_p &= __constant_cpu_to_le32(~BIT_10);
4858         }
4859
4860         qlt_24xx_config_nvram_stage1(vha, nv);
4861
4862         /* Reset Initialization control block */
4863         memset(icb, 0, ha->init_cb_size);
4864
4865         /* Copy 1st segment. */
4866         dptr1 = (uint8_t *)icb;
4867         dptr2 = (uint8_t *)&nv->version;
4868         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
4869         while (cnt--)
4870                 *dptr1++ = *dptr2++;
4871
4872         icb->login_retry_count = nv->login_retry_count;
4873         icb->link_down_on_nos = nv->link_down_on_nos;
4874
4875         /* Copy 2nd segment. */
4876         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
4877         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
4878         cnt = (uint8_t *)&icb->reserved_3 -
4879             (uint8_t *)&icb->interrupt_delay_timer;
4880         while (cnt--)
4881                 *dptr1++ = *dptr2++;
4882
4883         /*
4884          * Setup driver NVRAM options.
4885          */
4886         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
4887             "QLA2462");
4888
4889         qlt_24xx_config_nvram_stage2(vha, icb);
4890
4891         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
4892                 /* Use alternate WWN? */
4893                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
4894                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
4895         }
4896
4897         /* Prepare nodename */
4898         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
4899                 /*
4900                  * Firmware will apply the following mask if the nodename was
4901                  * not provided.
4902                  */
4903                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
4904                 icb->node_name[0] &= 0xF0;
4905         }
4906
4907         /* Set host adapter parameters. */
4908         ha->flags.disable_risc_code_load = 0;
4909         ha->flags.enable_lip_reset = 0;
4910         ha->flags.enable_lip_full_login =
4911             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
4912         ha->flags.enable_target_reset =
4913             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
4914         ha->flags.enable_led_scheme = 0;
4915         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
4916
4917         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
4918             (BIT_6 | BIT_5 | BIT_4)) >> 4;
4919
4920         memcpy(ha->fw_seriallink_options24, nv->seriallink_options,
4921             sizeof(ha->fw_seriallink_options24));
4922
4923         /* save HBA serial number */
4924         ha->serial0 = icb->port_name[5];
4925         ha->serial1 = icb->port_name[6];
4926         ha->serial2 = icb->port_name[7];
4927         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
4928         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
4929
4930         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
4931
4932         ha->retry_count = le16_to_cpu(nv->login_retry_count);
4933
4934         /* Set minimum login_timeout to 4 seconds. */
4935         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
4936                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
4937         if (le16_to_cpu(nv->login_timeout) < 4)
4938                 nv->login_timeout = __constant_cpu_to_le16(4);
4939         ha->login_timeout = le16_to_cpu(nv->login_timeout);
4940         icb->login_timeout = nv->login_timeout;
4941
4942         /* Set minimum RATOV to 100 tenths of a second. */
4943         ha->r_a_tov = 100;
4944
4945         ha->loop_reset_delay = nv->reset_delay;
4946
4947         /* Link Down Timeout = 0:
4948          *
4949          *      When Port Down timer expires we will start returning
4950          *      I/O's to OS with "DID_NO_CONNECT".
4951          *
4952          * Link Down Timeout != 0:
4953          *
4954          *       The driver waits for the link to come up after link down
4955          *       before returning I/Os to OS with "DID_NO_CONNECT".
4956          */
4957         if (le16_to_cpu(nv->link_down_timeout) == 0) {
4958                 ha->loop_down_abort_time =
4959                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
4960         } else {
4961                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
4962                 ha->loop_down_abort_time =
4963                     (LOOP_DOWN_TIME - ha->link_down_timeout);
4964         }
4965
4966         /* Need enough time to try and get the port back. */
4967         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
4968         if (qlport_down_retry)
4969                 ha->port_down_retry_count = qlport_down_retry;
4970
4971         /* Set login_retry_count */
4972         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
4973         if (ha->port_down_retry_count ==
4974             le16_to_cpu(nv->port_down_retry_count) &&
4975             ha->port_down_retry_count > 3)
4976                 ha->login_retry_count = ha->port_down_retry_count;
4977         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
4978                 ha->login_retry_count = ha->port_down_retry_count;
4979         if (ql2xloginretrycount)
4980                 ha->login_retry_count = ql2xloginretrycount;
4981
4982         /* Enable ZIO. */
4983         if (!vha->flags.init_done) {
4984                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
4985                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
4986                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
4987                     le16_to_cpu(icb->interrupt_delay_timer): 2;
4988         }
4989         icb->firmware_options_2 &= __constant_cpu_to_le32(
4990             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
4991         vha->flags.process_response_queue = 0;
4992         if (ha->zio_mode != QLA_ZIO_DISABLED) {
4993                 ha->zio_mode = QLA_ZIO_MODE_6;
4994
4995                 ql_log(ql_log_info, vha, 0x006f,
4996                     "ZIO mode %d enabled; timer delay (%d us).\n",
4997                     ha->zio_mode, ha->zio_timer * 100);
4998
4999                 icb->firmware_options_2 |= cpu_to_le32(
5000                     (uint32_t)ha->zio_mode);
5001                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
5002                 vha->flags.process_response_queue = 1;
5003         }
5004
5005         if (rval) {
5006                 ql_log(ql_log_warn, vha, 0x0070,
5007                     "NVRAM configuration failed.\n");
5008         }
5009         return (rval);
5010 }
5011
5012 static int
5013 qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
5014     uint32_t faddr)
5015 {
5016         int     rval = QLA_SUCCESS;
5017         int     segments, fragment;
5018         uint32_t *dcode, dlen;
5019         uint32_t risc_addr;
5020         uint32_t risc_size;
5021         uint32_t i;
5022         struct qla_hw_data *ha = vha->hw;
5023         struct req_que *req = ha->req_q_map[0];
5024
5025         ql_dbg(ql_dbg_init, vha, 0x008b,
5026             "FW: Loading firmware from flash (%x).\n", faddr);
5027
5028         rval = QLA_SUCCESS;
5029
5030         segments = FA_RISC_CODE_SEGMENTS;
5031         dcode = (uint32_t *)req->ring;
5032         *srisc_addr = 0;
5033
5034         /* Validate firmware image by checking version. */
5035         qla24xx_read_flash_data(vha, dcode, faddr + 4, 4);
5036         for (i = 0; i < 4; i++)
5037                 dcode[i] = be32_to_cpu(dcode[i]);
5038         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
5039             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
5040             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
5041                 dcode[3] == 0)) {
5042                 ql_log(ql_log_fatal, vha, 0x008c,
5043                     "Unable to verify the integrity of flash firmware "
5044                     "image.\n");
5045                 ql_log(ql_log_fatal, vha, 0x008d,
5046                     "Firmware data: %08x %08x %08x %08x.\n",
5047                     dcode[0], dcode[1], dcode[2], dcode[3]);
5048
5049                 return QLA_FUNCTION_FAILED;
5050         }
5051
5052         while (segments && rval == QLA_SUCCESS) {
5053                 /* Read segment's load information. */
5054                 qla24xx_read_flash_data(vha, dcode, faddr, 4);
5055
5056                 risc_addr = be32_to_cpu(dcode[2]);
5057                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
5058                 risc_size = be32_to_cpu(dcode[3]);
5059
5060                 fragment = 0;
5061                 while (risc_size > 0 && rval == QLA_SUCCESS) {
5062                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
5063                         if (dlen > risc_size)
5064                                 dlen = risc_size;
5065
5066                         ql_dbg(ql_dbg_init, vha, 0x008e,
5067                             "Loading risc segment@ risc addr %x "
5068                             "number of dwords 0x%x offset 0x%x.\n",
5069                             risc_addr, dlen, faddr);
5070
5071                         qla24xx_read_flash_data(vha, dcode, faddr, dlen);
5072                         for (i = 0; i < dlen; i++)
5073                                 dcode[i] = swab32(dcode[i]);
5074
5075                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5076                             dlen);
5077                         if (rval) {
5078                                 ql_log(ql_log_fatal, vha, 0x008f,
5079                                     "Failed to load segment %d of firmware.\n",
5080                                     fragment);
5081                                 break;
5082                         }
5083
5084                         faddr += dlen;
5085                         risc_addr += dlen;
5086                         risc_size -= dlen;
5087                         fragment++;
5088                 }
5089
5090                 /* Next segment. */
5091                 segments--;
5092         }
5093
5094         return rval;
5095 }
5096
5097 #define QLA_FW_URL "http://ldriver.qlogic.com/firmware/"
5098
5099 int
5100 qla2x00_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5101 {
5102         int     rval;
5103         int     i, fragment;
5104         uint16_t *wcode, *fwcode;
5105         uint32_t risc_addr, risc_size, fwclen, wlen, *seg;
5106         struct fw_blob *blob;
5107         struct qla_hw_data *ha = vha->hw;
5108         struct req_que *req = ha->req_q_map[0];
5109
5110         /* Load firmware blob. */
5111         blob = qla2x00_request_firmware(vha);
5112         if (!blob) {
5113                 ql_log(ql_log_info, vha, 0x0083,
5114                     "Fimware image unavailable.\n");
5115                 ql_log(ql_log_info, vha, 0x0084,
5116                     "Firmware images can be retrieved from: "QLA_FW_URL ".\n");
5117                 return QLA_FUNCTION_FAILED;
5118         }
5119
5120         rval = QLA_SUCCESS;
5121
5122         wcode = (uint16_t *)req->ring;
5123         *srisc_addr = 0;
5124         fwcode = (uint16_t *)blob->fw->data;
5125         fwclen = 0;
5126
5127         /* Validate firmware image by checking version. */
5128         if (blob->fw->size < 8 * sizeof(uint16_t)) {
5129                 ql_log(ql_log_fatal, vha, 0x0085,
5130                     "Unable to verify integrity of firmware image (%Zd).\n",
5131                     blob->fw->size);
5132                 goto fail_fw_integrity;
5133         }
5134         for (i = 0; i < 4; i++)
5135                 wcode[i] = be16_to_cpu(fwcode[i + 4]);
5136         if ((wcode[0] == 0xffff && wcode[1] == 0xffff && wcode[2] == 0xffff &&
5137             wcode[3] == 0xffff) || (wcode[0] == 0 && wcode[1] == 0 &&
5138                 wcode[2] == 0 && wcode[3] == 0)) {
5139                 ql_log(ql_log_fatal, vha, 0x0086,
5140                     "Unable to verify integrity of firmware image.\n");
5141                 ql_log(ql_log_fatal, vha, 0x0087,
5142                     "Firmware data: %04x %04x %04x %04x.\n",
5143                     wcode[0], wcode[1], wcode[2], wcode[3]);
5144                 goto fail_fw_integrity;
5145         }
5146
5147         seg = blob->segs;
5148         while (*seg && rval == QLA_SUCCESS) {
5149                 risc_addr = *seg;
5150                 *srisc_addr = *srisc_addr == 0 ? *seg : *srisc_addr;
5151                 risc_size = be16_to_cpu(fwcode[3]);
5152
5153                 /* Validate firmware image size. */
5154                 fwclen += risc_size * sizeof(uint16_t);
5155                 if (blob->fw->size < fwclen) {
5156                         ql_log(ql_log_fatal, vha, 0x0088,
5157                             "Unable to verify integrity of firmware image "
5158                             "(%Zd).\n", blob->fw->size);
5159                         goto fail_fw_integrity;
5160                 }
5161
5162                 fragment = 0;
5163                 while (risc_size > 0 && rval == QLA_SUCCESS) {
5164                         wlen = (uint16_t)(ha->fw_transfer_size >> 1);
5165                         if (wlen > risc_size)
5166                                 wlen = risc_size;
5167                         ql_dbg(ql_dbg_init, vha, 0x0089,
5168                             "Loading risc segment@ risc addr %x number of "
5169                             "words 0x%x.\n", risc_addr, wlen);
5170
5171                         for (i = 0; i < wlen; i++)
5172                                 wcode[i] = swab16(fwcode[i]);
5173
5174                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5175                             wlen);
5176                         if (rval) {
5177                                 ql_log(ql_log_fatal, vha, 0x008a,
5178                                     "Failed to load segment %d of firmware.\n",
5179                                     fragment);
5180                                 break;
5181                         }
5182
5183                         fwcode += wlen;
5184                         risc_addr += wlen;
5185                         risc_size -= wlen;
5186                         fragment++;
5187                 }
5188
5189                 /* Next segment. */
5190                 seg++;
5191         }
5192         return rval;
5193
5194 fail_fw_integrity:
5195         return QLA_FUNCTION_FAILED;
5196 }
5197
5198 static int
5199 qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5200 {
5201         int     rval;
5202         int     segments, fragment;
5203         uint32_t *dcode, dlen;
5204         uint32_t risc_addr;
5205         uint32_t risc_size;
5206         uint32_t i;
5207         struct fw_blob *blob;
5208         uint32_t *fwcode, fwclen;
5209         struct qla_hw_data *ha = vha->hw;
5210         struct req_que *req = ha->req_q_map[0];
5211
5212         /* Load firmware blob. */
5213         blob = qla2x00_request_firmware(vha);
5214         if (!blob) {
5215                 ql_log(ql_log_warn, vha, 0x0090,
5216                     "Fimware image unavailable.\n");
5217                 ql_log(ql_log_warn, vha, 0x0091,
5218                     "Firmware images can be retrieved from: "
5219                     QLA_FW_URL ".\n");
5220
5221                 return QLA_FUNCTION_FAILED;
5222         }
5223
5224         ql_dbg(ql_dbg_init, vha, 0x0092,
5225             "FW: Loading via request-firmware.\n");
5226
5227         rval = QLA_SUCCESS;
5228
5229         segments = FA_RISC_CODE_SEGMENTS;
5230         dcode = (uint32_t *)req->ring;
5231         *srisc_addr = 0;
5232         fwcode = (uint32_t *)blob->fw->data;
5233         fwclen = 0;
5234
5235         /* Validate firmware image by checking version. */
5236         if (blob->fw->size < 8 * sizeof(uint32_t)) {
5237                 ql_log(ql_log_fatal, vha, 0x0093,
5238                     "Unable to verify integrity of firmware image (%Zd).\n",
5239                     blob->fw->size);
5240                 goto fail_fw_integrity;
5241         }
5242         for (i = 0; i < 4; i++)
5243                 dcode[i] = be32_to_cpu(fwcode[i + 4]);
5244         if ((dcode[0] == 0xffffffff && dcode[1] == 0xffffffff &&
5245             dcode[2] == 0xffffffff && dcode[3] == 0xffffffff) ||
5246             (dcode[0] == 0 && dcode[1] == 0 && dcode[2] == 0 &&
5247                 dcode[3] == 0)) {
5248                 ql_log(ql_log_fatal, vha, 0x0094,
5249                     "Unable to verify integrity of firmware image (%Zd).\n",
5250                     blob->fw->size);
5251                 ql_log(ql_log_fatal, vha, 0x0095,
5252                     "Firmware data: %08x %08x %08x %08x.\n",
5253                     dcode[0], dcode[1], dcode[2], dcode[3]);
5254                 goto fail_fw_integrity;
5255         }
5256
5257         while (segments && rval == QLA_SUCCESS) {
5258                 risc_addr = be32_to_cpu(fwcode[2]);
5259                 *srisc_addr = *srisc_addr == 0 ? risc_addr : *srisc_addr;
5260                 risc_size = be32_to_cpu(fwcode[3]);
5261
5262                 /* Validate firmware image size. */
5263                 fwclen += risc_size * sizeof(uint32_t);
5264                 if (blob->fw->size < fwclen) {
5265                         ql_log(ql_log_fatal, vha, 0x0096,
5266                             "Unable to verify integrity of firmware image "
5267                             "(%Zd).\n", blob->fw->size);
5268
5269                         goto fail_fw_integrity;
5270                 }
5271
5272                 fragment = 0;
5273                 while (risc_size > 0 && rval == QLA_SUCCESS) {
5274                         dlen = (uint32_t)(ha->fw_transfer_size >> 2);
5275                         if (dlen > risc_size)
5276                                 dlen = risc_size;
5277
5278                         ql_dbg(ql_dbg_init, vha, 0x0097,
5279                             "Loading risc segment@ risc addr %x "
5280                             "number of dwords 0x%x.\n", risc_addr, dlen);
5281
5282                         for (i = 0; i < dlen; i++)
5283                                 dcode[i] = swab32(fwcode[i]);
5284
5285                         rval = qla2x00_load_ram(vha, req->dma, risc_addr,
5286                             dlen);
5287                         if (rval) {
5288                                 ql_log(ql_log_fatal, vha, 0x0098,
5289                                     "Failed to load segment %d of firmware.\n",
5290                                     fragment);
5291                                 break;
5292                         }
5293
5294                         fwcode += dlen;
5295                         risc_addr += dlen;
5296                         risc_size -= dlen;
5297                         fragment++;
5298                 }
5299
5300                 /* Next segment. */
5301                 segments--;
5302         }
5303         return rval;
5304
5305 fail_fw_integrity:
5306         return QLA_FUNCTION_FAILED;
5307 }
5308
5309 int
5310 qla24xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5311 {
5312         int rval;
5313
5314         if (ql2xfwloadbin == 1)
5315                 return qla81xx_load_risc(vha, srisc_addr);
5316
5317         /*
5318          * FW Load priority:
5319          * 1) Firmware via request-firmware interface (.bin file).
5320          * 2) Firmware residing in flash.
5321          */
5322         rval = qla24xx_load_risc_blob(vha, srisc_addr);
5323         if (rval == QLA_SUCCESS)
5324                 return rval;
5325
5326         return qla24xx_load_risc_flash(vha, srisc_addr,
5327             vha->hw->flt_region_fw);
5328 }
5329
5330 int
5331 qla81xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
5332 {
5333         int rval;
5334         struct qla_hw_data *ha = vha->hw;
5335
5336         if (ql2xfwloadbin == 2)
5337                 goto try_blob_fw;
5338
5339         /*
5340          * FW Load priority:
5341          * 1) Firmware residing in flash.
5342          * 2) Firmware via request-firmware interface (.bin file).
5343          * 3) Golden-Firmware residing in flash -- limited operation.
5344          */
5345         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_fw);
5346         if (rval == QLA_SUCCESS)
5347                 return rval;
5348
5349 try_blob_fw:
5350         rval = qla24xx_load_risc_blob(vha, srisc_addr);
5351         if (rval == QLA_SUCCESS || !ha->flt_region_gold_fw)
5352                 return rval;
5353
5354         ql_log(ql_log_info, vha, 0x0099,
5355             "Attempting to fallback to golden firmware.\n");
5356         rval = qla24xx_load_risc_flash(vha, srisc_addr, ha->flt_region_gold_fw);
5357         if (rval != QLA_SUCCESS)
5358                 return rval;
5359
5360         ql_log(ql_log_info, vha, 0x009a, "Update operational firmware.\n");
5361         ha->flags.running_gold_fw = 1;
5362         return rval;
5363 }
5364
5365 void
5366 qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha)
5367 {
5368         int ret, retries;
5369         struct qla_hw_data *ha = vha->hw;
5370
5371         if (ha->flags.pci_channel_io_perm_failure)
5372                 return;
5373         if (!IS_FWI2_CAPABLE(ha))
5374                 return;
5375         if (!ha->fw_major_version)
5376                 return;
5377
5378         ret = qla2x00_stop_firmware(vha);
5379         for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT &&
5380             ret != QLA_INVALID_COMMAND && retries ; retries--) {
5381                 ha->isp_ops->reset_chip(vha);
5382                 if (ha->isp_ops->chip_diag(vha) != QLA_SUCCESS)
5383                         continue;
5384                 if (qla2x00_setup_chip(vha) != QLA_SUCCESS)
5385                         continue;
5386                 ql_log(ql_log_info, vha, 0x8015,
5387                     "Attempting retry of stop-firmware command.\n");
5388                 ret = qla2x00_stop_firmware(vha);
5389         }
5390 }
5391
5392 int
5393 qla24xx_configure_vhba(scsi_qla_host_t *vha)
5394 {
5395         int rval = QLA_SUCCESS;
5396         int rval2;
5397         uint16_t mb[MAILBOX_REGISTER_COUNT];
5398         struct qla_hw_data *ha = vha->hw;
5399         struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
5400         struct req_que *req;
5401         struct rsp_que *rsp;
5402
5403         if (!vha->vp_idx)
5404                 return -EINVAL;
5405
5406         rval = qla2x00_fw_ready(base_vha);
5407         if (ha->flags.cpu_affinity_enabled)
5408                 req = ha->req_q_map[0];
5409         else
5410                 req = vha->req;
5411         rsp = req->rsp;
5412
5413         if (rval == QLA_SUCCESS) {
5414                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5415                 qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
5416         }
5417
5418         vha->flags.management_server_logged_in = 0;
5419
5420         /* Login to SNS first */
5421         rval2 = ha->isp_ops->fabric_login(vha, NPH_SNS, 0xff, 0xff, 0xfc, mb,
5422             BIT_1);
5423         if (rval2 != QLA_SUCCESS || mb[0] != MBS_COMMAND_COMPLETE) {
5424                 if (rval2 == QLA_MEMORY_ALLOC_FAILED)
5425                         ql_dbg(ql_dbg_init, vha, 0x0120,
5426                             "Failed SNS login: loop_id=%x, rval2=%d\n",
5427                             NPH_SNS, rval2);
5428                 else
5429                         ql_dbg(ql_dbg_init, vha, 0x0103,
5430                             "Failed SNS login: loop_id=%x mb[0]=%x mb[1]=%x "
5431                             "mb[2]=%x mb[6]=%x mb[7]=%x.\n",
5432                             NPH_SNS, mb[0], mb[1], mb[2], mb[6], mb[7]);
5433                 return (QLA_FUNCTION_FAILED);
5434         }
5435
5436         atomic_set(&vha->loop_down_timer, 0);
5437         atomic_set(&vha->loop_state, LOOP_UP);
5438         set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5439         set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
5440         rval = qla2x00_loop_resync(base_vha);
5441
5442         return rval;
5443 }
5444
5445 /* 84XX Support **************************************************************/
5446
5447 static LIST_HEAD(qla_cs84xx_list);
5448 static DEFINE_MUTEX(qla_cs84xx_mutex);
5449
5450 static struct qla_chip_state_84xx *
5451 qla84xx_get_chip(struct scsi_qla_host *vha)
5452 {
5453         struct qla_chip_state_84xx *cs84xx;
5454         struct qla_hw_data *ha = vha->hw;
5455
5456         mutex_lock(&qla_cs84xx_mutex);
5457
5458         /* Find any shared 84xx chip. */
5459         list_for_each_entry(cs84xx, &qla_cs84xx_list, list) {
5460                 if (cs84xx->bus == ha->pdev->bus) {
5461                         kref_get(&cs84xx->kref);
5462                         goto done;
5463                 }
5464         }
5465
5466         cs84xx = kzalloc(sizeof(*cs84xx), GFP_KERNEL);
5467         if (!cs84xx)
5468                 goto done;
5469
5470         kref_init(&cs84xx->kref);
5471         spin_lock_init(&cs84xx->access_lock);
5472         mutex_init(&cs84xx->fw_update_mutex);
5473         cs84xx->bus = ha->pdev->bus;
5474
5475         list_add_tail(&cs84xx->list, &qla_cs84xx_list);
5476 done:
5477         mutex_unlock(&qla_cs84xx_mutex);
5478         return cs84xx;
5479 }
5480
5481 static void
5482 __qla84xx_chip_release(struct kref *kref)
5483 {
5484         struct qla_chip_state_84xx *cs84xx =
5485             container_of(kref, struct qla_chip_state_84xx, kref);
5486
5487         mutex_lock(&qla_cs84xx_mutex);
5488         list_del(&cs84xx->list);
5489         mutex_unlock(&qla_cs84xx_mutex);
5490         kfree(cs84xx);
5491 }
5492
5493 void
5494 qla84xx_put_chip(struct scsi_qla_host *vha)
5495 {
5496         struct qla_hw_data *ha = vha->hw;
5497         if (ha->cs84xx)
5498                 kref_put(&ha->cs84xx->kref, __qla84xx_chip_release);
5499 }
5500
5501 static int
5502 qla84xx_init_chip(scsi_qla_host_t *vha)
5503 {
5504         int rval;
5505         uint16_t status[2];
5506         struct qla_hw_data *ha = vha->hw;
5507
5508         mutex_lock(&ha->cs84xx->fw_update_mutex);
5509
5510         rval = qla84xx_verify_chip(vha, status);
5511
5512         mutex_unlock(&ha->cs84xx->fw_update_mutex);
5513
5514         return rval != QLA_SUCCESS || status[0] ? QLA_FUNCTION_FAILED:
5515             QLA_SUCCESS;
5516 }
5517
5518 /* 81XX Support **************************************************************/
5519
5520 int
5521 qla81xx_nvram_config(scsi_qla_host_t *vha)
5522 {
5523         int   rval;
5524         struct init_cb_81xx *icb;
5525         struct nvram_81xx *nv;
5526         uint32_t *dptr;
5527         uint8_t  *dptr1, *dptr2;
5528         uint32_t chksum;
5529         uint16_t cnt;
5530         struct qla_hw_data *ha = vha->hw;
5531
5532         rval = QLA_SUCCESS;
5533         icb = (struct init_cb_81xx *)ha->init_cb;
5534         nv = ha->nvram;
5535
5536         /* Determine NVRAM starting address. */
5537         ha->nvram_size = sizeof(struct nvram_81xx);
5538         ha->vpd_size = FA_NVRAM_VPD_SIZE;
5539
5540         /* Get VPD data into cache */
5541         ha->vpd = ha->nvram + VPD_OFFSET;
5542         ha->isp_ops->read_optrom(vha, ha->vpd, ha->flt_region_vpd << 2,
5543             ha->vpd_size);
5544
5545         /* Get NVRAM data into cache and calculate checksum. */
5546         ha->isp_ops->read_optrom(vha, ha->nvram, ha->flt_region_nvram << 2,
5547             ha->nvram_size);
5548         dptr = (uint32_t *)nv;
5549         for (cnt = 0, chksum = 0; cnt < ha->nvram_size >> 2; cnt++)
5550                 chksum += le32_to_cpu(*dptr++);
5551
5552         ql_dbg(ql_dbg_init + ql_dbg_buffer, vha, 0x0111,
5553             "Contents of NVRAM:\n");
5554         ql_dump_buffer(ql_dbg_init + ql_dbg_buffer, vha, 0x0112,
5555             (uint8_t *)nv, ha->nvram_size);
5556
5557         /* Bad NVRAM data, set defaults parameters. */
5558         if (chksum || nv->id[0] != 'I' || nv->id[1] != 'S' || nv->id[2] != 'P'
5559             || nv->id[3] != ' ' ||
5560             nv->nvram_version < __constant_cpu_to_le16(ICB_VERSION)) {
5561                 /* Reset NVRAM data. */
5562                 ql_log(ql_log_info, vha, 0x0073,
5563                     "Inconsistent NVRAM detected: checksum=0x%x id=%c "
5564                     "version=0x%x.\n", chksum, nv->id[0],
5565                     le16_to_cpu(nv->nvram_version));
5566                 ql_log(ql_log_info, vha, 0x0074,
5567                     "Falling back to functioning (yet invalid -- WWPN) "
5568                     "defaults.\n");
5569
5570                 /*
5571                  * Set default initialization control block.
5572                  */
5573                 memset(nv, 0, ha->nvram_size);
5574                 nv->nvram_version = __constant_cpu_to_le16(ICB_VERSION);
5575                 nv->version = __constant_cpu_to_le16(ICB_VERSION);
5576                 nv->frame_payload_size = __constant_cpu_to_le16(2048);
5577                 nv->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5578                 nv->exchange_count = __constant_cpu_to_le16(0);
5579                 nv->port_name[0] = 0x21;
5580                 nv->port_name[1] = 0x00 + ha->port_no;
5581                 nv->port_name[2] = 0x00;
5582                 nv->port_name[3] = 0xe0;
5583                 nv->port_name[4] = 0x8b;
5584                 nv->port_name[5] = 0x1c;
5585                 nv->port_name[6] = 0x55;
5586                 nv->port_name[7] = 0x86;
5587                 nv->node_name[0] = 0x20;
5588                 nv->node_name[1] = 0x00;
5589                 nv->node_name[2] = 0x00;
5590                 nv->node_name[3] = 0xe0;
5591                 nv->node_name[4] = 0x8b;
5592                 nv->node_name[5] = 0x1c;
5593                 nv->node_name[6] = 0x55;
5594                 nv->node_name[7] = 0x86;
5595                 nv->login_retry_count = __constant_cpu_to_le16(8);
5596                 nv->interrupt_delay_timer = __constant_cpu_to_le16(0);
5597                 nv->login_timeout = __constant_cpu_to_le16(0);
5598                 nv->firmware_options_1 =
5599                     __constant_cpu_to_le32(BIT_14|BIT_13|BIT_2|BIT_1);
5600                 nv->firmware_options_2 = __constant_cpu_to_le32(2 << 4);
5601                 nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12);
5602                 nv->firmware_options_3 = __constant_cpu_to_le32(2 << 13);
5603                 nv->host_p = __constant_cpu_to_le32(BIT_11|BIT_10);
5604                 nv->efi_parameters = __constant_cpu_to_le32(0);
5605                 nv->reset_delay = 5;
5606                 nv->max_luns_per_target = __constant_cpu_to_le16(128);
5607                 nv->port_down_retry_count = __constant_cpu_to_le16(30);
5608                 nv->link_down_timeout = __constant_cpu_to_le16(180);
5609                 nv->enode_mac[0] = 0x00;
5610                 nv->enode_mac[1] = 0xC0;
5611                 nv->enode_mac[2] = 0xDD;
5612                 nv->enode_mac[3] = 0x04;
5613                 nv->enode_mac[4] = 0x05;
5614                 nv->enode_mac[5] = 0x06 + ha->port_no;
5615
5616                 rval = 1;
5617         }
5618
5619         if (IS_T10_PI_CAPABLE(ha))
5620                 nv->frame_payload_size &= ~7;
5621
5622         qlt_81xx_config_nvram_stage1(vha, nv);
5623
5624         /* Reset Initialization control block */
5625         memset(icb, 0, ha->init_cb_size);
5626
5627         /* Copy 1st segment. */
5628         dptr1 = (uint8_t *)icb;
5629         dptr2 = (uint8_t *)&nv->version;
5630         cnt = (uint8_t *)&icb->response_q_inpointer - (uint8_t *)&icb->version;
5631         while (cnt--)
5632                 *dptr1++ = *dptr2++;
5633
5634         icb->login_retry_count = nv->login_retry_count;
5635
5636         /* Copy 2nd segment. */
5637         dptr1 = (uint8_t *)&icb->interrupt_delay_timer;
5638         dptr2 = (uint8_t *)&nv->interrupt_delay_timer;
5639         cnt = (uint8_t *)&icb->reserved_5 -
5640             (uint8_t *)&icb->interrupt_delay_timer;
5641         while (cnt--)
5642                 *dptr1++ = *dptr2++;
5643
5644         memcpy(icb->enode_mac, nv->enode_mac, sizeof(icb->enode_mac));
5645         /* Some boards (with valid NVRAMs) still have NULL enode_mac!! */
5646         if (!memcmp(icb->enode_mac, "\0\0\0\0\0\0", sizeof(icb->enode_mac))) {
5647                 icb->enode_mac[0] = 0x00;
5648                 icb->enode_mac[1] = 0xC0;
5649                 icb->enode_mac[2] = 0xDD;
5650                 icb->enode_mac[3] = 0x04;
5651                 icb->enode_mac[4] = 0x05;
5652                 icb->enode_mac[5] = 0x06 + ha->port_no;
5653         }
5654
5655         /* Use extended-initialization control block. */
5656         memcpy(ha->ex_init_cb, &nv->ex_version, sizeof(*ha->ex_init_cb));
5657
5658         /*
5659          * Setup driver NVRAM options.
5660          */
5661         qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
5662             "QLE8XXX");
5663
5664         qlt_81xx_config_nvram_stage2(vha, icb);
5665
5666         /* Use alternate WWN? */
5667         if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
5668                 memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
5669                 memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
5670         }
5671
5672         /* Prepare nodename */
5673         if ((icb->firmware_options_1 & __constant_cpu_to_le32(BIT_14)) == 0) {
5674                 /*
5675                  * Firmware will apply the following mask if the nodename was
5676                  * not provided.
5677                  */
5678                 memcpy(icb->node_name, icb->port_name, WWN_SIZE);
5679                 icb->node_name[0] &= 0xF0;
5680         }
5681
5682         /* Set host adapter parameters. */
5683         ha->flags.disable_risc_code_load = 0;
5684         ha->flags.enable_lip_reset = 0;
5685         ha->flags.enable_lip_full_login =
5686             le32_to_cpu(nv->host_p) & BIT_10 ? 1: 0;
5687         ha->flags.enable_target_reset =
5688             le32_to_cpu(nv->host_p) & BIT_11 ? 1: 0;
5689         ha->flags.enable_led_scheme = 0;
5690         ha->flags.disable_serdes = le32_to_cpu(nv->host_p) & BIT_5 ? 1: 0;
5691
5692         ha->operating_mode = (le32_to_cpu(icb->firmware_options_2) &
5693             (BIT_6 | BIT_5 | BIT_4)) >> 4;
5694
5695         /* save HBA serial number */
5696         ha->serial0 = icb->port_name[5];
5697         ha->serial1 = icb->port_name[6];
5698         ha->serial2 = icb->port_name[7];
5699         memcpy(vha->node_name, icb->node_name, WWN_SIZE);
5700         memcpy(vha->port_name, icb->port_name, WWN_SIZE);
5701
5702         icb->execution_throttle = __constant_cpu_to_le16(0xFFFF);
5703
5704         ha->retry_count = le16_to_cpu(nv->login_retry_count);
5705
5706         /* Set minimum login_timeout to 4 seconds. */
5707         if (le16_to_cpu(nv->login_timeout) < ql2xlogintimeout)
5708                 nv->login_timeout = cpu_to_le16(ql2xlogintimeout);
5709         if (le16_to_cpu(nv->login_timeout) < 4)
5710                 nv->login_timeout = __constant_cpu_to_le16(4);
5711         ha->login_timeout = le16_to_cpu(nv->login_timeout);
5712         icb->login_timeout = nv->login_timeout;
5713
5714         /* Set minimum RATOV to 100 tenths of a second. */
5715         ha->r_a_tov = 100;
5716
5717         ha->loop_reset_delay = nv->reset_delay;
5718
5719         /* Link Down Timeout = 0:
5720          *
5721          *      When Port Down timer expires we will start returning
5722          *      I/O's to OS with "DID_NO_CONNECT".
5723          *
5724          * Link Down Timeout != 0:
5725          *
5726          *       The driver waits for the link to come up after link down
5727          *       before returning I/Os to OS with "DID_NO_CONNECT".
5728          */
5729         if (le16_to_cpu(nv->link_down_timeout) == 0) {
5730                 ha->loop_down_abort_time =
5731                     (LOOP_DOWN_TIME - LOOP_DOWN_TIMEOUT);
5732         } else {
5733                 ha->link_down_timeout = le16_to_cpu(nv->link_down_timeout);
5734                 ha->loop_down_abort_time =
5735                     (LOOP_DOWN_TIME - ha->link_down_timeout);
5736         }
5737
5738         /* Need enough time to try and get the port back. */
5739         ha->port_down_retry_count = le16_to_cpu(nv->port_down_retry_count);
5740         if (qlport_down_retry)
5741                 ha->port_down_retry_count = qlport_down_retry;
5742
5743         /* Set login_retry_count */
5744         ha->login_retry_count  = le16_to_cpu(nv->login_retry_count);
5745         if (ha->port_down_retry_count ==
5746             le16_to_cpu(nv->port_down_retry_count) &&
5747             ha->port_down_retry_count > 3)
5748                 ha->login_retry_count = ha->port_down_retry_count;
5749         else if (ha->port_down_retry_count > (int)ha->login_retry_count)
5750                 ha->login_retry_count = ha->port_down_retry_count;
5751         if (ql2xloginretrycount)
5752                 ha->login_retry_count = ql2xloginretrycount;
5753
5754         /* if not running MSI-X we need handshaking on interrupts */
5755         if (!vha->hw->flags.msix_enabled && IS_QLA83XX(ha))
5756                 icb->firmware_options_2 |= __constant_cpu_to_le32(BIT_22);
5757
5758         /* Enable ZIO. */
5759         if (!vha->flags.init_done) {
5760                 ha->zio_mode = le32_to_cpu(icb->firmware_options_2) &
5761                     (BIT_3 | BIT_2 | BIT_1 | BIT_0);
5762                 ha->zio_timer = le16_to_cpu(icb->interrupt_delay_timer) ?
5763                     le16_to_cpu(icb->interrupt_delay_timer): 2;
5764         }
5765         icb->firmware_options_2 &= __constant_cpu_to_le32(
5766             ~(BIT_3 | BIT_2 | BIT_1 | BIT_0));
5767         vha->flags.process_response_queue = 0;
5768         if (ha->zio_mode != QLA_ZIO_DISABLED) {
5769                 ha->zio_mode = QLA_ZIO_MODE_6;
5770
5771                 ql_log(ql_log_info, vha, 0x0075,
5772                     "ZIO mode %d enabled; timer delay (%d us).\n",
5773                     ha->zio_mode,
5774                     ha->zio_timer * 100);
5775
5776                 icb->firmware_options_2 |= cpu_to_le32(
5777                     (uint32_t)ha->zio_mode);
5778                 icb->interrupt_delay_timer = cpu_to_le16(ha->zio_timer);
5779                 vha->flags.process_response_queue = 1;
5780         }
5781
5782         if (rval) {
5783                 ql_log(ql_log_warn, vha, 0x0076,
5784                     "NVRAM configuration failed.\n");
5785         }
5786         return (rval);
5787 }
5788
5789 int
5790 qla82xx_restart_isp(scsi_qla_host_t *vha)
5791 {
5792         int status, rval;
5793         uint32_t wait_time;
5794         struct qla_hw_data *ha = vha->hw;
5795         struct req_que *req = ha->req_q_map[0];
5796         struct rsp_que *rsp = ha->rsp_q_map[0];
5797         struct scsi_qla_host *vp;
5798         unsigned long flags;
5799
5800         status = qla2x00_init_rings(vha);
5801         if (!status) {
5802                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5803                 ha->flags.chip_reset_done = 1;
5804
5805                 status = qla2x00_fw_ready(vha);
5806                 if (!status) {
5807                         ql_log(ql_log_info, vha, 0x803c,
5808                             "Start configure loop, status =%d.\n", status);
5809
5810                         /* Issue a marker after FW becomes ready. */
5811                         qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);
5812
5813                         vha->flags.online = 1;
5814                         /* Wait at most MAX_TARGET RSCNs for a stable link. */
5815                         wait_time = 256;
5816                         do {
5817                                 clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
5818                                 qla2x00_configure_loop(vha);
5819                                 wait_time--;
5820                         } while (!atomic_read(&vha->loop_down_timer) &&
5821                             !(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) &&
5822                             wait_time &&
5823                             (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)));
5824                 }
5825
5826                 /* if no cable then assume it's good */
5827                 if ((vha->device_flags & DFLG_NO_CABLE))
5828                         status = 0;
5829
5830                 ql_log(ql_log_info, vha, 0x8000,
5831                     "Configure loop done, status = 0x%x.\n", status);
5832         }
5833
5834         if (!status) {
5835                 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
5836
5837                 if (!atomic_read(&vha->loop_down_timer)) {
5838                         /*
5839                          * Issue marker command only when we are going
5840                          * to start the I/O .
5841                          */
5842                         vha->marker_needed = 1;
5843                 }
5844
5845                 vha->flags.online = 1;
5846
5847                 ha->isp_ops->enable_intrs(ha);
5848
5849                 ha->isp_abort_cnt = 0;
5850                 clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
5851
5852                 /* Update the firmware version */
5853                 status = qla82xx_check_md_needed(vha);
5854
5855                 if (ha->fce) {
5856                         ha->flags.fce_enabled = 1;
5857                         memset(ha->fce, 0,
5858                             fce_calc_size(ha->fce_bufs));
5859                         rval = qla2x00_enable_fce_trace(vha,
5860                             ha->fce_dma, ha->fce_bufs, ha->fce_mb,
5861                             &ha->fce_bufs);
5862                         if (rval) {
5863                                 ql_log(ql_log_warn, vha, 0x8001,
5864                                     "Unable to reinitialize FCE (%d).\n",
5865                                     rval);
5866                                 ha->flags.fce_enabled = 0;
5867                         }
5868                 }
5869
5870                 if (ha->eft) {
5871                         memset(ha->eft, 0, EFT_SIZE);
5872                         rval = qla2x00_enable_eft_trace(vha,
5873                             ha->eft_dma, EFT_NUM_BUFFERS);
5874                         if (rval) {
5875                                 ql_log(ql_log_warn, vha, 0x8010,
5876                                     "Unable to reinitialize EFT (%d).\n",
5877                                     rval);
5878                         }
5879                 }
5880         }
5881
5882         if (!status) {
5883                 ql_dbg(ql_dbg_taskm, vha, 0x8011,
5884                     "qla82xx_restart_isp succeeded.\n");
5885
5886                 spin_lock_irqsave(&ha->vport_slock, flags);
5887                 list_for_each_entry(vp, &ha->vp_list, list) {
5888                         if (vp->vp_idx) {
5889                                 atomic_inc(&vp->vref_count);
5890                                 spin_unlock_irqrestore(&ha->vport_slock, flags);
5891
5892                                 qla2x00_vp_abort_isp(vp);
5893
5894                                 spin_lock_irqsave(&ha->vport_slock, flags);
5895                                 atomic_dec(&vp->vref_count);
5896                         }
5897                 }
5898                 spin_unlock_irqrestore(&ha->vport_slock, flags);
5899
5900         } else {
5901                 ql_log(ql_log_warn, vha, 0x8016,
5902                     "qla82xx_restart_isp **** FAILED ****.\n");
5903         }
5904
5905         return status;
5906 }
5907
5908 void
5909 qla81xx_update_fw_options(scsi_qla_host_t *vha)
5910 {
5911         struct qla_hw_data *ha = vha->hw;
5912
5913         if (!ql2xetsenable)
5914                 return;
5915
5916         /* Enable ETS Burst. */
5917         memset(ha->fw_options, 0, sizeof(ha->fw_options));
5918         ha->fw_options[2] |= BIT_9;
5919         qla2x00_set_fw_options(vha, ha->fw_options);
5920 }
5921
5922 /*
5923  * qla24xx_get_fcp_prio
5924  *      Gets the fcp cmd priority value for the logged in port.
5925  *      Looks for a match of the port descriptors within
5926  *      each of the fcp prio config entries. If a match is found,
5927  *      the tag (priority) value is returned.
5928  *
5929  * Input:
5930  *      vha = scsi host structure pointer.
5931  *      fcport = port structure pointer.
5932  *
5933  * Return:
5934  *      non-zero (if found)
5935  *      -1 (if not found)
5936  *
5937  * Context:
5938  *      Kernel context
5939  */
5940 static int
5941 qla24xx_get_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
5942 {
5943         int i, entries;
5944         uint8_t pid_match, wwn_match;
5945         int priority;
5946         uint32_t pid1, pid2;
5947         uint64_t wwn1, wwn2;
5948         struct qla_fcp_prio_entry *pri_entry;
5949         struct qla_hw_data *ha = vha->hw;
5950
5951         if (!ha->fcp_prio_cfg || !ha->flags.fcp_prio_enabled)
5952                 return -1;
5953
5954         priority = -1;
5955         entries = ha->fcp_prio_cfg->num_entries;
5956         pri_entry = &ha->fcp_prio_cfg->entry[0];
5957
5958         for (i = 0; i < entries; i++) {
5959                 pid_match = wwn_match = 0;
5960
5961                 if (!(pri_entry->flags & FCP_PRIO_ENTRY_VALID)) {
5962                         pri_entry++;
5963                         continue;
5964                 }
5965
5966                 /* check source pid for a match */
5967                 if (pri_entry->flags & FCP_PRIO_ENTRY_SPID_VALID) {
5968                         pid1 = pri_entry->src_pid & INVALID_PORT_ID;
5969                         pid2 = vha->d_id.b24 & INVALID_PORT_ID;
5970                         if (pid1 == INVALID_PORT_ID)
5971                                 pid_match++;
5972                         else if (pid1 == pid2)
5973                                 pid_match++;
5974                 }
5975
5976                 /* check destination pid for a match */
5977                 if (pri_entry->flags & FCP_PRIO_ENTRY_DPID_VALID) {
5978                         pid1 = pri_entry->dst_pid & INVALID_PORT_ID;
5979                         pid2 = fcport->d_id.b24 & INVALID_PORT_ID;
5980                         if (pid1 == INVALID_PORT_ID)
5981                                 pid_match++;
5982                         else if (pid1 == pid2)
5983                                 pid_match++;
5984                 }
5985
5986                 /* check source WWN for a match */
5987                 if (pri_entry->flags & FCP_PRIO_ENTRY_SWWN_VALID) {
5988                         wwn1 = wwn_to_u64(vha->port_name);
5989                         wwn2 = wwn_to_u64(pri_entry->src_wwpn);
5990                         if (wwn2 == (uint64_t)-1)
5991                                 wwn_match++;
5992                         else if (wwn1 == wwn2)
5993                                 wwn_match++;
5994                 }
5995
5996                 /* check destination WWN for a match */
5997                 if (pri_entry->flags & FCP_PRIO_ENTRY_DWWN_VALID) {
5998                         wwn1 = wwn_to_u64(fcport->port_name);
5999                         wwn2 = wwn_to_u64(pri_entry->dst_wwpn);
6000                         if (wwn2 == (uint64_t)-1)
6001                                 wwn_match++;
6002                         else if (wwn1 == wwn2)
6003                                 wwn_match++;
6004                 }
6005
6006                 if (pid_match == 2 || wwn_match == 2) {
6007                         /* Found a matching entry */
6008                         if (pri_entry->flags & FCP_PRIO_ENTRY_TAG_VALID)
6009                                 priority = pri_entry->tag;
6010                         break;
6011                 }
6012
6013                 pri_entry++;
6014         }
6015
6016         return priority;
6017 }
6018
6019 /*
6020  * qla24xx_update_fcport_fcp_prio
6021  *      Activates fcp priority for the logged in fc port
6022  *
6023  * Input:
6024  *      vha = scsi host structure pointer.
6025  *      fcp = port structure pointer.
6026  *
6027  * Return:
6028  *      QLA_SUCCESS or QLA_FUNCTION_FAILED
6029  *
6030  * Context:
6031  *      Kernel context.
6032  */
6033 int
6034 qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
6035 {
6036         int ret;
6037         int priority;
6038         uint16_t mb[5];
6039
6040         if (fcport->port_type != FCT_TARGET ||
6041             fcport->loop_id == FC_NO_LOOP_ID)
6042                 return QLA_FUNCTION_FAILED;
6043
6044         priority = qla24xx_get_fcp_prio(vha, fcport);
6045         if (priority < 0)
6046                 return QLA_FUNCTION_FAILED;
6047
6048         if (IS_QLA82XX(vha->hw)) {
6049                 fcport->fcp_prio = priority & 0xf;
6050                 return QLA_SUCCESS;
6051         }
6052
6053         ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
6054         if (ret == QLA_SUCCESS) {
6055                 if (fcport->fcp_prio != priority)
6056                         ql_dbg(ql_dbg_user, vha, 0x709e,
6057                             "Updated FCP_CMND priority - value=%d loop_id=%d "
6058                             "port_id=%02x%02x%02x.\n", priority,
6059                             fcport->loop_id, fcport->d_id.b.domain,
6060                             fcport->d_id.b.area, fcport->d_id.b.al_pa);
6061                 fcport->fcp_prio = priority & 0xf;
6062         } else
6063                 ql_dbg(ql_dbg_user, vha, 0x704f,
6064                     "Unable to update FCP_CMND priority - ret=0x%x for "
6065                     "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
6066                     fcport->d_id.b.domain, fcport->d_id.b.area,
6067                     fcport->d_id.b.al_pa);
6068         return  ret;
6069 }
6070
6071 /*
6072  * qla24xx_update_all_fcp_prio
6073  *      Activates fcp priority for all the logged in ports
6074  *
6075  * Input:
6076  *      ha = adapter block pointer.
6077  *
6078  * Return:
6079  *      QLA_SUCCESS or QLA_FUNCTION_FAILED
6080  *
6081  * Context:
6082  *      Kernel context.
6083  */
6084 int
6085 qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha)
6086 {
6087         int ret;
6088         fc_port_t *fcport;
6089
6090         ret = QLA_FUNCTION_FAILED;
6091         /* We need to set priority for all logged in ports */
6092         list_for_each_entry(fcport, &vha->vp_fcports, list)
6093                 ret = qla24xx_update_fcport_fcp_prio(vha, fcport);
6094
6095         return ret;
6096 }