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