Pileus Git - ~andy/linux/blob - drivers/scsi/bfa/bfa_fcs.c

   1 /*
   2  * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 /*
  19  *  bfa_fcs.c BFA FCS main
  20  */
  21
  22 #include "bfad_drv.h"
  23 #include "bfad_im.h"
  24 #include "bfa_fcs.h"
  25 #include "bfa_fcbuild.h"
  26
  27 BFA_TRC_FILE(FCS, FCS);
  28
  29 /*
  30  * FCS sub-modules
  31  */
  32 struct bfa_fcs_mod_s {
  33         void            (*attach) (struct bfa_fcs_s *fcs);
  34         void            (*modinit) (struct bfa_fcs_s *fcs);
  35         void            (*modexit) (struct bfa_fcs_s *fcs);
  36 };
  37
  38 #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit }
  39
  40 static struct bfa_fcs_mod_s fcs_modules[] = {
  41         { bfa_fcs_port_attach, NULL, NULL },
  42         { bfa_fcs_uf_attach, NULL, NULL },
  43         { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit,
  44           bfa_fcs_fabric_modexit },
  45 };
  46
  47 /*
  48  *  fcs_api BFA FCS API
  49  */
  50
  51 static void
  52 bfa_fcs_exit_comp(void *fcs_cbarg)
  53 {
  54         struct bfa_fcs_s      *fcs = fcs_cbarg;
  55         struct bfad_s         *bfad = fcs->bfad;
  56
  57         complete(&bfad->comp);
  58 }
  59
  60
  61
  62 /*
  63  *  fcs_api BFA FCS API
  64  */
  65
  66 /*
  67  * fcs attach -- called once to initialize data structures at driver attach time
  68  */
  69 void
  70 bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad,
  71                bfa_boolean_t min_cfg)
  72 {
  73         int             i;
  74         struct bfa_fcs_mod_s  *mod;
  75
  76         fcs->bfa = bfa;
  77         fcs->bfad = bfad;
  78         fcs->min_cfg = min_cfg;
  79         fcs->num_rport_logins = 0;
  80
  81         bfa->fcs = BFA_TRUE;
  82         fcbuild_init();
  83
  84         for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) {
  85                 mod = &fcs_modules[i];
  86                 if (mod->attach)
  87                         mod->attach(fcs);
  88         }
  89 }
  90
  91 /*
  92  * fcs initialization, called once after bfa initialization is complete
  93  */
  94 void
  95 bfa_fcs_init(struct bfa_fcs_s *fcs)
  96 {
  97         int     i;
  98         struct bfa_fcs_mod_s  *mod;
  99
 100         for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) {
 101                 mod = &fcs_modules[i];
 102                 if (mod->modinit)
 103                         mod->modinit(fcs);
 104         }
 105 }
 106
 107 /*
 108  * FCS update cfg - reset the pwwn/nwwn of fabric base logical port
 109  * with values learned during bfa_init firmware GETATTR REQ.
 110  */
 111 void
 112 bfa_fcs_update_cfg(struct bfa_fcs_s *fcs)
 113 {
 114         struct bfa_fcs_fabric_s *fabric = &fcs->fabric;
 115         struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
 116         struct bfa_ioc_s *ioc = &fabric->fcs->bfa->ioc;
 117
 118         port_cfg->nwwn = ioc->attr->nwwn;
 119         port_cfg->pwwn = ioc->attr->pwwn;
 120 }
 121
 122 /*
 123  * Stop FCS operations.
 124  */
 125 void
 126 bfa_fcs_stop(struct bfa_fcs_s *fcs)
 127 {
 128         bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
 129         bfa_wc_up(&fcs->wc);
 130         bfa_fcs_fabric_modstop(fcs);
 131         bfa_wc_wait(&fcs->wc);
 132 }
 133
 134 /*
 135  * fcs pbc vport initialization
 136  */
 137 void
 138 bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs)
 139 {
 140         int i, npbc_vports;
 141         struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS];
 142
 143         /* Initialize pbc vports */
 144         if (!fcs->min_cfg) {
 145                 npbc_vports =
 146                         bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports);
 147                 for (i = 0; i < npbc_vports; i++)
 148                         bfa_fcb_pbc_vport_create(fcs->bfa->bfad, pbc_vports[i]);
 149         }
 150 }
 151
 152 /*
 153  *      brief
 154  *              FCS driver details initialization.
 155  *
 156  *      param[in]               fcs             FCS instance
 157  *      param[in]               driver_info     Driver Details
 158  *
 159  *      return None
 160  */
 161 void
 162 bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
 163                         struct bfa_fcs_driver_info_s *driver_info)
 164 {
 165
 166         fcs->driver_info = *driver_info;
 167
 168         bfa_fcs_fabric_psymb_init(&fcs->fabric);
 169         bfa_fcs_fabric_nsymb_init(&fcs->fabric);
 170 }
 171
 172 /*
 173  *      brief
 174  *              FCS instance cleanup and exit.
 175  *
 176  *      param[in]               fcs                     FCS instance
 177  *      return None
 178  */
 179 void
 180 bfa_fcs_exit(struct bfa_fcs_s *fcs)
 181 {
 182         struct bfa_fcs_mod_s  *mod;
 183         int             nmods, i;
 184
 185         bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
 186
 187         nmods = sizeof(fcs_modules) / sizeof(fcs_modules[0]);
 188
 189         for (i = 0; i < nmods; i++) {
 190
 191                 mod = &fcs_modules[i];
 192                 if (mod->modexit) {
 193                         bfa_wc_up(&fcs->wc);
 194                         mod->modexit(fcs);
 195                 }
 196         }
 197
 198         bfa_wc_wait(&fcs->wc);
 199 }
 200
 201
 202 /*
 203  * Fabric module implementation.
 204  */
 205
 206 #define BFA_FCS_FABRIC_RETRY_DELAY      (2000)  /* Milliseconds */
 207 #define BFA_FCS_FABRIC_CLEANUP_DELAY    (10000) /* Milliseconds */
 208
 209 #define bfa_fcs_fabric_set_opertype(__fabric) do {                      \
 210         if (bfa_fcport_get_topology((__fabric)->fcs->bfa)               \
 211                                 == BFA_PORT_TOPOLOGY_P2P) {             \
 212                 if (fabric->fab_type == BFA_FCS_FABRIC_SWITCHED)        \
 213                         (__fabric)->oper_type = BFA_PORT_TYPE_NPORT;    \
 214                 else                                                    \
 215                         (__fabric)->oper_type = BFA_PORT_TYPE_P2P;      \
 216         } else                                                          \
 217                 (__fabric)->oper_type = BFA_PORT_TYPE_NLPORT;           \
 218 } while (0)
 219
 220 /*
 221  * forward declarations
 222  */
 223 static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric);
 224 static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric);
 225 static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric);
 226 static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric);
 227 static void bfa_fcs_fabric_delay(void *cbarg);
 228 static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric);
 229 static void bfa_fcs_fabric_delete_comp(void *cbarg);
 230 static void bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric);
 231 static void bfa_fcs_fabric_stop_comp(void *cbarg);
 232 static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric,
 233                                       struct fchs_s *fchs, u16 len);
 234 static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
 235                                          struct fchs_s *fchs, u16 len);
 236 static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric);
 237 static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg,
 238                                          struct bfa_fcxp_s *fcxp, void *cbarg,
 239                                          bfa_status_t status,
 240                                          u32 rsp_len,
 241                                          u32 resid_len,
 242                                          struct fchs_s *rspfchs);
 243 static u8 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric);
 244 static bfa_boolean_t bfa_fcs_fabric_is_bbscn_enabled(
 245                                 struct bfa_fcs_fabric_s *fabric);
 246
 247 static void     bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
 248                                          enum bfa_fcs_fabric_event event);
 249 static void     bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
 250                                           enum bfa_fcs_fabric_event event);
 251 static void     bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
 252                                            enum bfa_fcs_fabric_event event);
 253 static void     bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
 254                                         enum bfa_fcs_fabric_event event);
 255 static void     bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
 256                                               enum bfa_fcs_fabric_event event);
 257 static void     bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
 258                                        enum bfa_fcs_fabric_event event);
 259 static void     bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
 260                                            enum bfa_fcs_fabric_event event);
 261 static void     bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
 262                                        enum bfa_fcs_fabric_event event);
 263 static void     bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
 264                                             enum bfa_fcs_fabric_event event);
 265 static void     bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
 266                                            enum bfa_fcs_fabric_event event);
 267 static void     bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
 268                                            enum bfa_fcs_fabric_event event);
 269 static void     bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
 270                                            enum bfa_fcs_fabric_event event);
 271 static void     bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
 272                                           enum bfa_fcs_fabric_event event);
 273 /*
 274  *   Beginning state before fabric creation.
 275  */
 276 static void
 277 bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
 278                          enum bfa_fcs_fabric_event event)
 279 {
 280         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 281         bfa_trc(fabric->fcs, event);
 282
 283         switch (event) {
 284         case BFA_FCS_FABRIC_SM_CREATE:
 285                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
 286                 bfa_fcs_fabric_init(fabric);
 287                 bfa_fcs_lport_init(&fabric->bport, &fabric->bport.port_cfg);
 288                 break;
 289
 290         case BFA_FCS_FABRIC_SM_LINK_UP:
 291         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 292                 break;
 293
 294         default:
 295                 bfa_sm_fault(fabric->fcs, event);
 296         }
 297 }
 298
 299 /*
 300  *   Beginning state before fabric creation.
 301  */
 302 static void
 303 bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
 304                           enum bfa_fcs_fabric_event event)
 305 {
 306         struct bfa_s    *bfa = fabric->fcs->bfa;
 307
 308         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 309         bfa_trc(fabric->fcs, event);
 310
 311         switch (event) {
 312         case BFA_FCS_FABRIC_SM_START:
 313                 if (!bfa_fcport_is_linkup(fabric->fcs->bfa)) {
 314                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 315                         break;
 316                 }
 317                 if (bfa_fcport_get_topology(bfa) ==
 318                                 BFA_PORT_TOPOLOGY_LOOP) {
 319                         fabric->fab_type = BFA_FCS_FABRIC_LOOP;
 320                         fabric->bport.pid = bfa_fcport_get_myalpa(bfa);
 321                         fabric->bport.pid = bfa_hton3b(fabric->bport.pid);
 322                         bfa_sm_set_state(fabric,
 323                                         bfa_fcs_fabric_sm_online);
 324                         bfa_fcs_fabric_set_opertype(fabric);
 325                         bfa_fcs_lport_online(&fabric->bport);
 326                 } else {
 327                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
 328                         bfa_fcs_fabric_login(fabric);
 329                 }
 330                 break;
 331
 332         case BFA_FCS_FABRIC_SM_LINK_UP:
 333         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 334                 break;
 335
 336         case BFA_FCS_FABRIC_SM_DELETE:
 337                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 338                 bfa_fcs_fabric_delete(fabric);
 339                 break;
 340
 341         default:
 342                 bfa_sm_fault(fabric->fcs, event);
 343         }
 344 }
 345
 346 /*
 347  *   Link is down, awaiting LINK UP event from port. This is also the
 348  *   first state at fabric creation.
 349  */
 350 static void
 351 bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
 352                            enum bfa_fcs_fabric_event event)
 353 {
 354         struct bfa_s    *bfa = fabric->fcs->bfa;
 355
 356         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 357         bfa_trc(fabric->fcs, event);
 358
 359         switch (event) {
 360         case BFA_FCS_FABRIC_SM_LINK_UP:
 361                 if (bfa_fcport_get_topology(bfa) != BFA_PORT_TOPOLOGY_LOOP) {
 362                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
 363                         bfa_fcs_fabric_login(fabric);
 364                         break;
 365                 }
 366                 fabric->fab_type = BFA_FCS_FABRIC_LOOP;
 367                 fabric->bport.pid = bfa_fcport_get_myalpa(bfa);
 368                 fabric->bport.pid = bfa_hton3b(fabric->bport.pid);
 369                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
 370                 bfa_fcs_fabric_set_opertype(fabric);
 371                 bfa_fcs_lport_online(&fabric->bport);
 372                 break;
 373
 374         case BFA_FCS_FABRIC_SM_RETRY_OP:
 375         case BFA_FCS_FABRIC_SM_LOOPBACK:
 376                 break;
 377
 378         case BFA_FCS_FABRIC_SM_DELETE:
 379                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 380                 bfa_fcs_fabric_delete(fabric);
 381                 break;
 382
 383         case BFA_FCS_FABRIC_SM_STOP:
 384                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
 385                 bfa_fcs_fabric_stop(fabric);
 386                 break;
 387
 388         default:
 389                 bfa_sm_fault(fabric->fcs, event);
 390         }
 391 }
 392
 393 /*
 394  *   FLOGI is in progress, awaiting FLOGI reply.
 395  */
 396 static void
 397 bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
 398                         enum bfa_fcs_fabric_event event)
 399 {
 400         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 401         bfa_trc(fabric->fcs, event);
 402
 403         switch (event) {
 404         case BFA_FCS_FABRIC_SM_CONT_OP:
 405
 406                 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
 407                                            fabric->bb_credit,
 408                                            bfa_fcs_fabric_oper_bbscn(fabric));
 409                 fabric->fab_type = BFA_FCS_FABRIC_SWITCHED;
 410
 411                 if (fabric->auth_reqd && fabric->is_auth) {
 412                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth);
 413                         bfa_trc(fabric->fcs, event);
 414                 } else {
 415                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
 416                         bfa_fcs_fabric_notify_online(fabric);
 417                 }
 418                 break;
 419
 420         case BFA_FCS_FABRIC_SM_RETRY_OP:
 421                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi_retry);
 422                 bfa_timer_start(fabric->fcs->bfa, &fabric->delay_timer,
 423                                 bfa_fcs_fabric_delay, fabric,
 424                                 BFA_FCS_FABRIC_RETRY_DELAY);
 425                 break;
 426
 427         case BFA_FCS_FABRIC_SM_LOOPBACK:
 428                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_loopback);
 429                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 430                 bfa_fcs_fabric_set_opertype(fabric);
 431                 break;
 432
 433         case BFA_FCS_FABRIC_SM_NO_FABRIC:
 434                 fabric->fab_type = BFA_FCS_FABRIC_N2N;
 435                 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
 436                                            fabric->bb_credit,
 437                                            bfa_fcs_fabric_oper_bbscn(fabric));
 438                 bfa_fcs_fabric_notify_online(fabric);
 439                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric);
 440                 break;
 441
 442         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 443                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 444                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 445                 break;
 446
 447         case BFA_FCS_FABRIC_SM_DELETE:
 448                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 449                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 450                 bfa_fcs_fabric_delete(fabric);
 451                 break;
 452
 453         default:
 454                 bfa_sm_fault(fabric->fcs, event);
 455         }
 456 }
 457
 458
 459 static void
 460 bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
 461                               enum bfa_fcs_fabric_event event)
 462 {
 463         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 464         bfa_trc(fabric->fcs, event);
 465
 466         switch (event) {
 467         case BFA_FCS_FABRIC_SM_DELAYED:
 468                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
 469                 bfa_fcs_fabric_login(fabric);
 470                 break;
 471
 472         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 473                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 474                 bfa_timer_stop(&fabric->delay_timer);
 475                 break;
 476
 477         case BFA_FCS_FABRIC_SM_DELETE:
 478                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 479                 bfa_timer_stop(&fabric->delay_timer);
 480                 bfa_fcs_fabric_delete(fabric);
 481                 break;
 482
 483         default:
 484                 bfa_sm_fault(fabric->fcs, event);
 485         }
 486 }
 487
 488 /*
 489  *   Authentication is in progress, awaiting authentication results.
 490  */
 491 static void
 492 bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
 493                        enum bfa_fcs_fabric_event event)
 494 {
 495         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 496         bfa_trc(fabric->fcs, event);
 497
 498         switch (event) {
 499         case BFA_FCS_FABRIC_SM_AUTH_FAILED:
 500                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
 501                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 502                 break;
 503
 504         case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
 505                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
 506                 bfa_fcs_fabric_notify_online(fabric);
 507                 break;
 508
 509         case BFA_FCS_FABRIC_SM_PERF_EVFP:
 510                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp);
 511                 break;
 512
 513         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 514                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 515                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 516                 break;
 517
 518         case BFA_FCS_FABRIC_SM_DELETE:
 519                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 520                 bfa_fcs_fabric_delete(fabric);
 521                 break;
 522
 523         default:
 524                 bfa_sm_fault(fabric->fcs, event);
 525         }
 526 }
 527
 528 /*
 529  *   Authentication failed
 530  */
 531 void
 532 bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric,
 533                               enum bfa_fcs_fabric_event event)
 534 {
 535         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 536         bfa_trc(fabric->fcs, event);
 537
 538         switch (event) {
 539         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 540                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 541                 bfa_fcs_fabric_notify_offline(fabric);
 542                 break;
 543
 544         case BFA_FCS_FABRIC_SM_DELETE:
 545                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 546                 bfa_fcs_fabric_delete(fabric);
 547                 break;
 548
 549         default:
 550                 bfa_sm_fault(fabric->fcs, event);
 551         }
 552 }
 553
 554 /*
 555  *   Port is in loopback mode.
 556  */
 557 void
 558 bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric,
 559                            enum bfa_fcs_fabric_event event)
 560 {
 561         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 562         bfa_trc(fabric->fcs, event);
 563
 564         switch (event) {
 565         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 566                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 567                 bfa_fcs_fabric_notify_offline(fabric);
 568                 break;
 569
 570         case BFA_FCS_FABRIC_SM_DELETE:
 571                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 572                 bfa_fcs_fabric_delete(fabric);
 573                 break;
 574
 575         default:
 576                 bfa_sm_fault(fabric->fcs, event);
 577         }
 578 }
 579
 580 /*
 581  *   There is no attached fabric - private loop or NPort-to-NPort topology.
 582  */
 583 static void
 584 bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
 585                            enum bfa_fcs_fabric_event event)
 586 {
 587         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 588         bfa_trc(fabric->fcs, event);
 589
 590         switch (event) {
 591         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 592                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 593                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 594                 bfa_fcs_fabric_notify_offline(fabric);
 595                 break;
 596
 597         case BFA_FCS_FABRIC_SM_DELETE:
 598                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 599                 bfa_fcs_fabric_delete(fabric);
 600                 break;
 601
 602         case BFA_FCS_FABRIC_SM_NO_FABRIC:
 603                 bfa_trc(fabric->fcs, fabric->bb_credit);
 604                 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa,
 605                                            fabric->bb_credit,
 606                                            bfa_fcs_fabric_oper_bbscn(fabric));
 607                 break;
 608
 609         case BFA_FCS_FABRIC_SM_RETRY_OP:
 610                 break;
 611
 612         default:
 613                 bfa_sm_fault(fabric->fcs, event);
 614         }
 615 }
 616
 617 /*
 618  *   Fabric is online - normal operating state.
 619  */
 620 void
 621 bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
 622                          enum bfa_fcs_fabric_event event)
 623 {
 624         struct bfa_s    *bfa = fabric->fcs->bfa;
 625
 626         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 627         bfa_trc(fabric->fcs, event);
 628
 629         switch (event) {
 630         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 631                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
 632                 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) {
 633                         bfa_fcs_lport_offline(&fabric->bport);
 634                 } else {
 635                         bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 636                         bfa_fcs_fabric_notify_offline(fabric);
 637                 }
 638                 break;
 639
 640         case BFA_FCS_FABRIC_SM_DELETE:
 641                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
 642                 bfa_fcs_fabric_delete(fabric);
 643                 break;
 644
 645         case BFA_FCS_FABRIC_SM_STOP:
 646                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_stopping);
 647                 bfa_fcs_fabric_stop(fabric);
 648                 break;
 649
 650         case BFA_FCS_FABRIC_SM_AUTH_FAILED:
 651                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
 652                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
 653                 break;
 654
 655         case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
 656                 break;
 657
 658         default:
 659                 bfa_sm_fault(fabric->fcs, event);
 660         }
 661 }
 662
 663 /*
 664  *   Exchanging virtual fabric parameters.
 665  */
 666 static void
 667 bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
 668                        enum bfa_fcs_fabric_event event)
 669 {
 670         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 671         bfa_trc(fabric->fcs, event);
 672
 673         switch (event) {
 674         case BFA_FCS_FABRIC_SM_CONT_OP:
 675                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp_done);
 676                 break;
 677
 678         case BFA_FCS_FABRIC_SM_ISOLATE:
 679                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_isolated);
 680                 break;
 681
 682         default:
 683                 bfa_sm_fault(fabric->fcs, event);
 684         }
 685 }
 686
 687 /*
 688  *   EVFP exchange complete and VFT tagging is enabled.
 689  */
 690 static void
 691 bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
 692                             enum bfa_fcs_fabric_event event)
 693 {
 694         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 695         bfa_trc(fabric->fcs, event);
 696 }
 697
 698 /*
 699  *   Port is isolated after EVFP exchange due to VF_ID mismatch (N and F).
 700  */
 701 static void
 702 bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
 703                            enum bfa_fcs_fabric_event event)
 704 {
 705         struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad;
 706         char    pwwn_ptr[BFA_STRING_32];
 707
 708         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 709         bfa_trc(fabric->fcs, event);
 710         wwn2str(pwwn_ptr, fabric->bport.port_cfg.pwwn);
 711
 712         BFA_LOG(KERN_INFO, bfad, bfa_log_level,
 713                 "Port is isolated due to VF_ID mismatch. "
 714                 "PWWN: %s Port VF_ID: %04x switch port VF_ID: %04x.",
 715                 pwwn_ptr, fabric->fcs->port_vfid,
 716                 fabric->event_arg.swp_vfid);
 717 }
 718
 719 /*
 720  *   Fabric is being deleted, awaiting vport delete completions.
 721  */
 722 static void
 723 bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
 724                            enum bfa_fcs_fabric_event event)
 725 {
 726         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 727         bfa_trc(fabric->fcs, event);
 728
 729         switch (event) {
 730         case BFA_FCS_FABRIC_SM_DELCOMP:
 731                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
 732                 bfa_wc_down(&fabric->fcs->wc);
 733                 break;
 734
 735         case BFA_FCS_FABRIC_SM_LINK_UP:
 736                 break;
 737
 738         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 739                 bfa_fcs_fabric_notify_offline(fabric);
 740                 break;
 741
 742         default:
 743                 bfa_sm_fault(fabric->fcs, event);
 744         }
 745 }
 746
 747 /*
 748  * Fabric is being stopped, awaiting vport stop completions.
 749  */
 750 static void
 751 bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
 752                            enum bfa_fcs_fabric_event event)
 753 {
 754         struct bfa_s    *bfa = fabric->fcs->bfa;
 755
 756         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 757         bfa_trc(fabric->fcs, event);
 758
 759         switch (event) {
 760         case BFA_FCS_FABRIC_SM_STOPCOMP:
 761                 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) {
 762                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
 763                 } else {
 764                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
 765                         bfa_sm_send_event(fabric->lps, BFA_LPS_SM_LOGOUT);
 766                 }
 767                 break;
 768
 769         case BFA_FCS_FABRIC_SM_LINK_UP:
 770                 break;
 771
 772         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 773                 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP)
 774                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
 775                 else
 776                         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
 777                 break;
 778
 779         default:
 780                 bfa_sm_fault(fabric->fcs, event);
 781         }
 782 }
 783
 784 /*
 785  * Fabric is being stopped, cleanup without FLOGO
 786  */
 787 static void
 788 bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
 789                           enum bfa_fcs_fabric_event event)
 790 {
 791         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 792         bfa_trc(fabric->fcs, event);
 793
 794         switch (event) {
 795         case BFA_FCS_FABRIC_SM_STOPCOMP:
 796         case BFA_FCS_FABRIC_SM_LOGOCOMP:
 797                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
 798                 bfa_wc_down(&(fabric->fcs)->wc);
 799                 break;
 800
 801         case BFA_FCS_FABRIC_SM_LINK_DOWN:
 802                 /*
 803                  * Ignore - can get this event if we get notified about IOC down
 804                  * before the fabric completion callbk is done.
 805                  */
 806                 break;
 807
 808         default:
 809                 bfa_sm_fault(fabric->fcs, event);
 810         }
 811 }
 812
 813 /*
 814  *  fcs_fabric_private fabric private functions
 815  */
 816
 817 static void
 818 bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric)
 819 {
 820         struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
 821
 822         port_cfg->roles = BFA_LPORT_ROLE_FCP_IM;
 823         port_cfg->nwwn = fabric->fcs->bfa->ioc.attr->nwwn;
 824         port_cfg->pwwn = fabric->fcs->bfa->ioc.attr->pwwn;
 825 }
 826
 827 /*
 828  * Port Symbolic Name Creation for base port.
 829  */
 830 void
 831 bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
 832 {
 833         struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
 834         char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
 835         struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
 836
 837         bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
 838
 839         /* Model name/number */
 840         strncpy((char *)&port_cfg->sym_name, model,
 841                 BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
 842         strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 843                 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 844
 845         /* Driver Version */
 846         strncat((char *)&port_cfg->sym_name, (char *)driver_info->version,
 847                 BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
 848         strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 849                 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 850
 851         /* Host machine name */
 852         strncat((char *)&port_cfg->sym_name,
 853                 (char *)driver_info->host_machine_name,
 854                 BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
 855         strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 856                 sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 857
 858         /*
 859          * Host OS Info :
 860          * If OS Patch Info is not there, do not truncate any bytes from the
 861          * OS name string and instead copy the entire OS info string (64 bytes).
 862          */
 863         if (driver_info->host_os_patch[0] == '\0') {
 864                 strncat((char *)&port_cfg->sym_name,
 865                         (char *)driver_info->host_os_name,
 866                         BFA_FCS_OS_STR_LEN);
 867                 strncat((char *)&port_cfg->sym_name,
 868                         BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 869                         sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 870         } else {
 871                 strncat((char *)&port_cfg->sym_name,
 872                         (char *)driver_info->host_os_name,
 873                         BFA_FCS_PORT_SYMBNAME_OSINFO_SZ);
 874                 strncat((char *)&port_cfg->sym_name,
 875                         BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 876                         sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 877
 878                 /* Append host OS Patch Info */
 879                 strncat((char *)&port_cfg->sym_name,
 880                         (char *)driver_info->host_os_patch,
 881                         BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ);
 882         }
 883
 884         /* null terminate */
 885         port_cfg->sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
 886 }
 887
 888 /*
 889  * Node Symbolic Name Creation for base port and all vports
 890  */
 891 void
 892 bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric)
 893 {
 894         struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg;
 895         char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
 896         struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
 897
 898         bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
 899
 900         /* Model name/number */
 901         strncpy((char *)&port_cfg->node_sym_name, model,
 902                 BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
 903         strncat((char *)&port_cfg->node_sym_name,
 904                         BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 905                         sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 906
 907         /* Driver Version */
 908         strncat((char *)&port_cfg->node_sym_name, (char *)driver_info->version,
 909                 BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
 910         strncat((char *)&port_cfg->node_sym_name,
 911                         BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 912                         sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 913
 914         /* Host machine name */
 915         strncat((char *)&port_cfg->node_sym_name,
 916                 (char *)driver_info->host_machine_name,
 917                 BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
 918         strncat((char *)&port_cfg->node_sym_name,
 919                         BFA_FCS_PORT_SYMBNAME_SEPARATOR,
 920                         sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
 921
 922         /* null terminate */
 923         port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
 924 }
 925
 926 /*
 927  * bfa lps login completion callback
 928  */
 929 void
 930 bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status)
 931 {
 932         struct bfa_fcs_fabric_s *fabric = uarg;
 933
 934         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
 935         bfa_trc(fabric->fcs, status);
 936
 937         switch (status) {
 938         case BFA_STATUS_OK:
 939                 fabric->stats.flogi_accepts++;
 940                 break;
 941
 942         case BFA_STATUS_INVALID_MAC:
 943                 /* Only for CNA */
 944                 fabric->stats.flogi_acc_err++;
 945                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
 946
 947                 return;
 948
 949         case BFA_STATUS_EPROTOCOL:
 950                 switch (fabric->lps->ext_status) {
 951                 case BFA_EPROTO_BAD_ACCEPT:
 952                         fabric->stats.flogi_acc_err++;
 953                         break;
 954
 955                 case BFA_EPROTO_UNKNOWN_RSP:
 956                         fabric->stats.flogi_unknown_rsp++;
 957                         break;
 958
 959                 default:
 960                         break;
 961                 }
 962                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
 963
 964                 return;
 965
 966         case BFA_STATUS_FABRIC_RJT:
 967                 fabric->stats.flogi_rejects++;
 968                 if (fabric->lps->lsrjt_rsn == FC_LS_RJT_RSN_LOGICAL_ERROR &&
 969                     fabric->lps->lsrjt_expl == FC_LS_RJT_EXP_NO_ADDL_INFO)
 970                         fabric->fcs->bbscn_flogi_rjt = BFA_TRUE;
 971
 972                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
 973                 return;
 974
 975         default:
 976                 fabric->stats.flogi_rsp_err++;
 977                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
 978                 return;
 979         }
 980
 981         fabric->bb_credit = fabric->lps->pr_bbcred;
 982         bfa_trc(fabric->fcs, fabric->bb_credit);
 983
 984         if (!(fabric->lps->brcd_switch))
 985                 fabric->fabric_name =  fabric->lps->pr_nwwn;
 986
 987         /*
 988          * Check port type. It should be 1 = F-port.
 989          */
 990         if (fabric->lps->fport) {
 991                 fabric->bport.pid = fabric->lps->lp_pid;
 992                 fabric->is_npiv = fabric->lps->npiv_en;
 993                 fabric->is_auth = fabric->lps->auth_req;
 994                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CONT_OP);
 995         } else {
 996                 /*
 997                  * Nport-2-Nport direct attached
 998                  */
 999                 fabric->bport.port_topo.pn2n.rem_port_wwn =
1000                         fabric->lps->pr_pwwn;
1001                 fabric->fab_type = BFA_FCS_FABRIC_N2N;
1002                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
1003         }
1004
1005         bfa_trc(fabric->fcs, fabric->bport.pid);
1006         bfa_trc(fabric->fcs, fabric->is_npiv);
1007         bfa_trc(fabric->fcs, fabric->is_auth);
1008 }
1009 /*
1010  *              Allocate and send FLOGI.
1011  */
1012 static void
1013 bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric)
1014 {
1015         struct bfa_s            *bfa = fabric->fcs->bfa;
1016         struct bfa_lport_cfg_s  *pcfg = &fabric->bport.port_cfg;
1017         u8                      alpa = 0, bb_scn = 0;
1018
1019         if (bfa_fcs_fabric_is_bbscn_enabled(fabric) &&
1020             (!fabric->fcs->bbscn_flogi_rjt))
1021                 bb_scn = BFA_FCS_PORT_DEF_BB_SCN;
1022
1023         bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa),
1024                       pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd, bb_scn);
1025
1026         fabric->stats.flogi_sent++;
1027 }
1028
1029 static void
1030 bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric)
1031 {
1032         struct bfa_fcs_vport_s *vport;
1033         struct list_head              *qe, *qen;
1034
1035         bfa_trc(fabric->fcs, fabric->fabric_name);
1036
1037         bfa_fcs_fabric_set_opertype(fabric);
1038         fabric->stats.fabric_onlines++;
1039
1040         /*
1041          * notify online event to base and then virtual ports
1042          */
1043         bfa_fcs_lport_online(&fabric->bport);
1044
1045         list_for_each_safe(qe, qen, &fabric->vport_q) {
1046                 vport = (struct bfa_fcs_vport_s *) qe;
1047                 bfa_fcs_vport_online(vport);
1048         }
1049 }
1050
1051 static void
1052 bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric)
1053 {
1054         struct bfa_fcs_vport_s *vport;
1055         struct list_head              *qe, *qen;
1056
1057         bfa_trc(fabric->fcs, fabric->fabric_name);
1058         fabric->stats.fabric_offlines++;
1059
1060         /*
1061          * notify offline event first to vports and then base port.
1062          */
1063         list_for_each_safe(qe, qen, &fabric->vport_q) {
1064                 vport = (struct bfa_fcs_vport_s *) qe;
1065                 bfa_fcs_vport_offline(vport);
1066         }
1067
1068         bfa_fcs_lport_offline(&fabric->bport);
1069
1070         fabric->fabric_name = 0;
1071         fabric->fabric_ip_addr[0] = 0;
1072 }
1073
1074 static void
1075 bfa_fcs_fabric_delay(void *cbarg)
1076 {
1077         struct bfa_fcs_fabric_s *fabric = cbarg;
1078
1079         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELAYED);
1080 }
1081
1082 /*
1083  * Stop all vports and wait for vport stop completions.
1084  */
1085 static void
1086 bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric)
1087 {
1088         struct bfa_fcs_vport_s *vport;
1089         struct list_head        *qe, *qen;
1090
1091         bfa_wc_init(&fabric->stop_wc, bfa_fcs_fabric_stop_comp, fabric);
1092
1093         list_for_each_safe(qe, qen, &fabric->vport_q) {
1094                 vport = (struct bfa_fcs_vport_s *) qe;
1095                 bfa_wc_up(&fabric->stop_wc);
1096                 bfa_fcs_vport_fcs_stop(vport);
1097         }
1098
1099         bfa_wc_up(&fabric->stop_wc);
1100         bfa_fcs_lport_stop(&fabric->bport);
1101         bfa_wc_wait(&fabric->stop_wc);
1102 }
1103
1104 /*
1105  * Computes operating BB_SCN value
1106  */
1107 static u8
1108 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric)
1109 {
1110         u8      pr_bbscn = fabric->lps->pr_bbscn;
1111         struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
1112
1113         if (!(fcport->cfg.bb_scn_state && pr_bbscn))
1114                 return 0;
1115
1116         /* return max of local/remote bb_scn values */
1117         return ((pr_bbscn > BFA_FCS_PORT_DEF_BB_SCN) ?
1118                 pr_bbscn : BFA_FCS_PORT_DEF_BB_SCN);
1119 }
1120
1121 /*
1122  * Check if BB_SCN can be enabled.
1123  */
1124 static bfa_boolean_t
1125 bfa_fcs_fabric_is_bbscn_enabled(struct bfa_fcs_fabric_s *fabric)
1126 {
1127         struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa);
1128
1129         if (bfa_ioc_get_fcmode(&fabric->fcs->bfa->ioc) &&
1130                         fcport->cfg.bb_scn_state &&
1131                         !bfa_fcport_is_qos_enabled(fabric->fcs->bfa) &&
1132                         !bfa_fcport_is_trunk_enabled(fabric->fcs->bfa))
1133                 return BFA_TRUE;
1134         else
1135                 return BFA_FALSE;
1136 }
1137
1138 /*
1139  * Delete all vports and wait for vport delete completions.
1140  */
1141 static void
1142 bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric)
1143 {
1144         struct bfa_fcs_vport_s *vport;
1145         struct list_head              *qe, *qen;
1146
1147         list_for_each_safe(qe, qen, &fabric->vport_q) {
1148                 vport = (struct bfa_fcs_vport_s *) qe;
1149                 bfa_fcs_vport_fcs_delete(vport);
1150         }
1151
1152         bfa_fcs_lport_delete(&fabric->bport);
1153         bfa_wc_wait(&fabric->wc);
1154 }
1155
1156 static void
1157 bfa_fcs_fabric_delete_comp(void *cbarg)
1158 {
1159         struct bfa_fcs_fabric_s *fabric = cbarg;
1160
1161         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP);
1162 }
1163
1164 static void
1165 bfa_fcs_fabric_stop_comp(void *cbarg)
1166 {
1167         struct bfa_fcs_fabric_s *fabric = cbarg;
1168
1169         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOPCOMP);
1170 }
1171
1172 /*
1173  *  fcs_fabric_public fabric public functions
1174  */
1175
1176 /*
1177  * Attach time initialization.
1178  */
1179 void
1180 bfa_fcs_fabric_attach(struct bfa_fcs_s *fcs)
1181 {
1182         struct bfa_fcs_fabric_s *fabric;
1183
1184         fabric = &fcs->fabric;
1185         memset(fabric, 0, sizeof(struct bfa_fcs_fabric_s));
1186
1187         /*
1188          * Initialize base fabric.
1189          */
1190         fabric->fcs = fcs;
1191         INIT_LIST_HEAD(&fabric->vport_q);
1192         INIT_LIST_HEAD(&fabric->vf_q);
1193         fabric->lps = bfa_lps_alloc(fcs->bfa);
1194         WARN_ON(!fabric->lps);
1195
1196         /*
1197          * Initialize fabric delete completion handler. Fabric deletion is
1198          * complete when the last vport delete is complete.
1199          */
1200         bfa_wc_init(&fabric->wc, bfa_fcs_fabric_delete_comp, fabric);
1201         bfa_wc_up(&fabric->wc); /* For the base port */
1202
1203         bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
1204         bfa_fcs_lport_attach(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, NULL);
1205 }
1206
1207 void
1208 bfa_fcs_fabric_modinit(struct bfa_fcs_s *fcs)
1209 {
1210         bfa_sm_send_event(&fcs->fabric, BFA_FCS_FABRIC_SM_CREATE);
1211         bfa_trc(fcs, 0);
1212 }
1213
1214 /*
1215  *   Module cleanup
1216  */
1217 void
1218 bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs)
1219 {
1220         struct bfa_fcs_fabric_s *fabric;
1221
1222         bfa_trc(fcs, 0);
1223
1224         /*
1225          * Cleanup base fabric.
1226          */
1227         fabric = &fcs->fabric;
1228         bfa_lps_delete(fabric->lps);
1229         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELETE);
1230 }
1231
1232 /*
1233  * Fabric module stop -- stop FCS actions
1234  */
1235 void
1236 bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs)
1237 {
1238         struct bfa_fcs_fabric_s *fabric;
1239
1240         bfa_trc(fcs, 0);
1241         fabric = &fcs->fabric;
1242         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOP);
1243 }
1244
1245 /*
1246  * Fabric module start -- kick starts FCS actions
1247  */
1248 void
1249 bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs)
1250 {
1251         struct bfa_fcs_fabric_s *fabric;
1252
1253         bfa_trc(fcs, 0);
1254         fabric = &fcs->fabric;
1255         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_START);
1256 }
1257
1258
1259 /*
1260  *   Link up notification from BFA physical port module.
1261  */
1262 void
1263 bfa_fcs_fabric_link_up(struct bfa_fcs_fabric_s *fabric)
1264 {
1265         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
1266         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_UP);
1267 }
1268
1269 /*
1270  *   Link down notification from BFA physical port module.
1271  */
1272 void
1273 bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric)
1274 {
1275         bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
1276         fabric->fcs->bbscn_flogi_rjt = BFA_FALSE;
1277         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN);
1278 }
1279
1280 /*
1281  *   A child vport is being created in the fabric.
1282  *
1283  *   Call from vport module at vport creation. A list of base port and vports
1284  *   belonging to a fabric is maintained to propagate link events.
1285  *
1286  *   param[in] fabric - Fabric instance. This can be a base fabric or vf.
1287  *   param[in] vport  - Vport being created.
1288  *
1289  *   @return None (always succeeds)
1290  */
1291 void
1292 bfa_fcs_fabric_addvport(struct bfa_fcs_fabric_s *fabric,
1293                         struct bfa_fcs_vport_s *vport)
1294 {
1295         /*
1296          * - add vport to fabric's vport_q
1297          */
1298         bfa_trc(fabric->fcs, fabric->vf_id);
1299
1300         list_add_tail(&vport->qe, &fabric->vport_q);
1301         fabric->num_vports++;
1302         bfa_wc_up(&fabric->wc);
1303 }
1304
1305 /*
1306  *   A child vport is being deleted from fabric.
1307  *
1308  *   Vport is being deleted.
1309  */
1310 void
1311 bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric,
1312                         struct bfa_fcs_vport_s *vport)
1313 {
1314         list_del(&vport->qe);
1315         fabric->num_vports--;
1316         bfa_wc_down(&fabric->wc);
1317 }
1318
1319
1320 /*
1321  * Lookup for a vport within a fabric given its pwwn
1322  */
1323 struct bfa_fcs_vport_s *
1324 bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn)
1325 {
1326         struct bfa_fcs_vport_s *vport;
1327         struct list_head              *qe;
1328
1329         list_for_each(qe, &fabric->vport_q) {
1330                 vport = (struct bfa_fcs_vport_s *) qe;
1331                 if (bfa_fcs_lport_get_pwwn(&vport->lport) == pwwn)
1332                         return vport;
1333         }
1334
1335         return NULL;
1336 }
1337
1338
1339 /*
1340  *  Get OUI of the attached switch.
1341  *
1342  *  Note : Use of this function should be avoided as much as possible.
1343  *         This function should be used only if there is any requirement
1344 *          to check for FOS version below 6.3.
1345  *         To check if the attached fabric is a brocade fabric, use
1346  *         bfa_lps_is_brcd_fabric() which works for FOS versions 6.3
1347  *         or above only.
1348  */
1349
1350 u16
1351 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric)
1352 {
1353         wwn_t fab_nwwn;
1354         u8 *tmp;
1355         u16 oui;
1356
1357         fab_nwwn = fabric->lps->pr_nwwn;
1358
1359         tmp = (u8 *)&fab_nwwn;
1360         oui = (tmp[3] << 8) | tmp[4];
1361
1362         return oui;
1363 }
1364 /*
1365  *              Unsolicited frame receive handling.
1366  */
1367 void
1368 bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
1369                        u16 len)
1370 {
1371         u32     pid = fchs->d_id;
1372         struct bfa_fcs_vport_s *vport;
1373         struct list_head              *qe;
1374         struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
1375         struct fc_logi_s *flogi = (struct fc_logi_s *) els_cmd;
1376
1377         bfa_trc(fabric->fcs, len);
1378         bfa_trc(fabric->fcs, pid);
1379
1380         /*
1381          * Look for our own FLOGI frames being looped back. This means an
1382          * external loopback cable is in place. Our own FLOGI frames are
1383          * sometimes looped back when switch port gets temporarily bypassed.
1384          */
1385         if ((pid == bfa_ntoh3b(FC_FABRIC_PORT)) &&
1386             (els_cmd->els_code == FC_ELS_FLOGI) &&
1387             (flogi->port_name == bfa_fcs_lport_get_pwwn(&fabric->bport))) {
1388                 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOOPBACK);
1389                 return;
1390         }
1391
1392         /*
1393          * FLOGI/EVFP exchanges should be consumed by base fabric.
1394          */
1395         if (fchs->d_id == bfa_hton3b(FC_FABRIC_PORT)) {
1396                 bfa_trc(fabric->fcs, pid);
1397                 bfa_fcs_fabric_process_uf(fabric, fchs, len);
1398                 return;
1399         }
1400
1401         if (fabric->bport.pid == pid) {
1402                 /*
1403                  * All authentication frames should be routed to auth
1404                  */
1405                 bfa_trc(fabric->fcs, els_cmd->els_code);
1406                 if (els_cmd->els_code == FC_ELS_AUTH) {
1407                         bfa_trc(fabric->fcs, els_cmd->els_code);
1408                         return;
1409                 }
1410
1411                 bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs));
1412                 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
1413                 return;
1414         }
1415
1416         /*
1417          * look for a matching local port ID
1418          */
1419         list_for_each(qe, &fabric->vport_q) {
1420                 vport = (struct bfa_fcs_vport_s *) qe;
1421                 if (vport->lport.pid == pid) {
1422                         bfa_fcs_lport_uf_recv(&vport->lport, fchs, len);
1423                         return;
1424                 }
1425         }
1426
1427         if (!bfa_fcs_fabric_is_switched(fabric))
1428                 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len);
1429
1430         bfa_trc(fabric->fcs, fchs->type);
1431 }
1432
1433 /*
1434  *              Unsolicited frames to be processed by fabric.
1435  */
1436 static void
1437 bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
1438                           u16 len)
1439 {
1440         struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
1441
1442         bfa_trc(fabric->fcs, els_cmd->els_code);
1443
1444         switch (els_cmd->els_code) {
1445         case FC_ELS_FLOGI:
1446                 bfa_fcs_fabric_process_flogi(fabric, fchs, len);
1447                 break;
1448
1449         default:
1450                 /*
1451                  * need to generate a LS_RJT
1452                  */
1453                 break;
1454         }
1455 }
1456
1457 /*
1458  *      Process incoming FLOGI
1459  */
1460 static void
1461 bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
1462                         struct fchs_s *fchs, u16 len)
1463 {
1464         struct fc_logi_s *flogi = (struct fc_logi_s *) (fchs + 1);
1465         struct bfa_fcs_lport_s *bport = &fabric->bport;
1466
1467         bfa_trc(fabric->fcs, fchs->s_id);
1468
1469         fabric->stats.flogi_rcvd++;
1470         /*
1471          * Check port type. It should be 0 = n-port.
1472          */
1473         if (flogi->csp.port_type) {
1474                 /*
1475                  * @todo: may need to send a LS_RJT
1476                  */
1477                 bfa_trc(fabric->fcs, flogi->port_name);
1478                 fabric->stats.flogi_rejected++;
1479                 return;
1480         }
1481
1482         fabric->bb_credit = be16_to_cpu(flogi->csp.bbcred);
1483         fabric->lps->pr_bbscn = (be16_to_cpu(flogi->csp.rxsz) >> 12);
1484         bport->port_topo.pn2n.rem_port_wwn = flogi->port_name;
1485         bport->port_topo.pn2n.reply_oxid = fchs->ox_id;
1486
1487         /*
1488          * Send a Flogi Acc
1489          */
1490         bfa_fcs_fabric_send_flogi_acc(fabric);
1491         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
1492 }
1493
1494 static void
1495 bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric)
1496 {
1497         struct bfa_lport_cfg_s *pcfg = &fabric->bport.port_cfg;
1498         struct bfa_fcs_lport_n2n_s *n2n_port = &fabric->bport.port_topo.pn2n;
1499         struct bfa_s      *bfa = fabric->fcs->bfa;
1500         struct bfa_fcxp_s *fcxp;
1501         u16     reqlen;
1502         struct fchs_s   fchs;
1503
1504         fcxp = bfa_fcs_fcxp_alloc(fabric->fcs, BFA_FALSE);
1505         /*
1506          * Do not expect this failure -- expect remote node to retry
1507          */
1508         if (!fcxp)
1509                 return;
1510
1511         reqlen = fc_flogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
1512                                     bfa_hton3b(FC_FABRIC_PORT),
1513                                     n2n_port->reply_oxid, pcfg->pwwn,
1514                                     pcfg->nwwn,
1515                                     bfa_fcport_get_maxfrsize(bfa),
1516                                     bfa_fcport_get_rx_bbcredit(bfa),
1517                                     bfa_fcs_fabric_oper_bbscn(fabric));
1518
1519         bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->bfa_tag,
1520                       BFA_FALSE, FC_CLASS_3,
1521                       reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric,
1522                       FC_MAX_PDUSZ, 0);
1523 }
1524
1525 /*
1526  *   Flogi Acc completion callback.
1527  */
1528 static void
1529 bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
1530                              bfa_status_t status, u32 rsp_len,
1531                              u32 resid_len, struct fchs_s *rspfchs)
1532 {
1533         struct bfa_fcs_fabric_s *fabric = cbarg;
1534
1535         bfa_trc(fabric->fcs, status);
1536 }
1537
1538
1539 /*
1540  * Send AEN notification
1541  */
1542 static void
1543 bfa_fcs_fabric_aen_post(struct bfa_fcs_lport_s *port,
1544                         enum bfa_port_aen_event event)
1545 {
1546         struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad;
1547         struct bfa_aen_entry_s  *aen_entry;
1548
1549         bfad_get_aen_entry(bfad, aen_entry);
1550         if (!aen_entry)
1551                 return;
1552
1553         aen_entry->aen_data.port.pwwn = bfa_fcs_lport_get_pwwn(port);
1554         aen_entry->aen_data.port.fwwn = bfa_fcs_lport_get_fabric_name(port);
1555
1556         /* Send the AEN notification */
1557         bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq,
1558                                   BFA_AEN_CAT_PORT, event);
1559 }
1560
1561 /*
1562  *
1563  * @param[in] fabric - fabric
1564  * @param[in] wwn_t - new fabric name
1565  *
1566  * @return - none
1567  */
1568 void
1569 bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
1570                                wwn_t fabric_name)
1571 {
1572         struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad;
1573         char    pwwn_ptr[BFA_STRING_32];
1574         char    fwwn_ptr[BFA_STRING_32];
1575
1576         bfa_trc(fabric->fcs, fabric_name);
1577
1578         if (fabric->fabric_name == 0) {
1579                 /*
1580                  * With BRCD switches, we don't get Fabric Name in FLOGI.
1581                  * Don't generate a fabric name change event in this case.
1582                  */
1583                 fabric->fabric_name = fabric_name;
1584         } else {
1585                 fabric->fabric_name = fabric_name;
1586                 wwn2str(pwwn_ptr, bfa_fcs_lport_get_pwwn(&fabric->bport));
1587                 wwn2str(fwwn_ptr,
1588                         bfa_fcs_lport_get_fabric_name(&fabric->bport));
1589                 BFA_LOG(KERN_WARNING, bfad, bfa_log_level,
1590                         "Base port WWN = %s Fabric WWN = %s\n",
1591                         pwwn_ptr, fwwn_ptr);
1592                 bfa_fcs_fabric_aen_post(&fabric->bport,
1593                                 BFA_PORT_AEN_FABRIC_NAME_CHANGE);
1594         }
1595 }
1596
1597 void
1598 bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
1599 {
1600         struct bfa_fcs_fabric_s *fabric = uarg;
1601         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOGOCOMP);
1602 }
1603
1604 /*
1605  *      Returns FCS vf structure for a given vf_id.
1606  *
1607  *      param[in]       vf_id - VF_ID
1608  *
1609  *      return
1610  *      If lookup succeeds, retuns fcs vf object, otherwise returns NULL
1611  */
1612 bfa_fcs_vf_t   *
1613 bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id)
1614 {
1615         bfa_trc(fcs, vf_id);
1616         if (vf_id == FC_VF_ID_NULL)
1617                 return &fcs->fabric;
1618
1619         return NULL;
1620 }
1621
1622 /*
1623  *      Return the list of local logical ports present in the given VF.
1624  *
1625  *      @param[in]      vf      vf for which logical ports are returned
1626  *      @param[out]     lpwwn   returned logical port wwn list
1627  *      @param[in,out]  nlports in:size of lpwwn list;
1628  *                              out:total elements present,
1629  *                              actual elements returned is limited by the size
1630  */
1631 void
1632 bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports)
1633 {
1634         struct list_head *qe;
1635         struct bfa_fcs_vport_s *vport;
1636         int     i = 0;
1637         struct bfa_fcs_s        *fcs;
1638
1639         if (vf == NULL || lpwwn == NULL || *nlports == 0)
1640                 return;
1641
1642         fcs = vf->fcs;
1643
1644         bfa_trc(fcs, vf->vf_id);
1645         bfa_trc(fcs, (uint32_t) *nlports);
1646
1647         lpwwn[i++] = vf->bport.port_cfg.pwwn;
1648
1649         list_for_each(qe, &vf->vport_q) {
1650                 if (i >= *nlports)
1651                         break;
1652
1653                 vport = (struct bfa_fcs_vport_s *) qe;
1654                 lpwwn[i++] = vport->lport.port_cfg.pwwn;
1655         }
1656
1657         bfa_trc(fcs, i);
1658         *nlports = i;
1659 }
1660
1661 /*
1662  * BFA FCS PPORT ( physical port)
1663  */
1664 static void
1665 bfa_fcs_port_event_handler(void *cbarg, enum bfa_port_linkstate event)
1666 {
1667         struct bfa_fcs_s      *fcs = cbarg;
1668
1669         bfa_trc(fcs, event);
1670
1671         switch (event) {
1672         case BFA_PORT_LINKUP:
1673                 bfa_fcs_fabric_link_up(&fcs->fabric);
1674                 break;
1675
1676         case BFA_PORT_LINKDOWN:
1677                 bfa_fcs_fabric_link_down(&fcs->fabric);
1678                 break;
1679
1680         default:
1681                 WARN_ON(1);
1682         }
1683 }
1684
1685 void
1686 bfa_fcs_port_attach(struct bfa_fcs_s *fcs)
1687 {
1688         bfa_fcport_event_register(fcs->bfa, bfa_fcs_port_event_handler, fcs);
1689 }
1690
1691 /*
1692  * BFA FCS UF ( Unsolicited Frames)
1693  */
1694
1695 /*
1696  *              BFA callback for unsolicited frame receive handler.
1697  *
1698  * @param[in]           cbarg           callback arg for receive handler
1699  * @param[in]           uf              unsolicited frame descriptor
1700  *
1701  * @return None
1702  */
1703 static void
1704 bfa_fcs_uf_recv(void *cbarg, struct bfa_uf_s *uf)
1705 {
1706         struct bfa_fcs_s        *fcs = (struct bfa_fcs_s *) cbarg;
1707         struct fchs_s   *fchs = bfa_uf_get_frmbuf(uf);
1708         u16     len = bfa_uf_get_frmlen(uf);
1709         struct fc_vft_s *vft;
1710         struct bfa_fcs_fabric_s *fabric;
1711
1712         /*
1713          * check for VFT header
1714          */
1715         if (fchs->routing == FC_RTG_EXT_HDR &&
1716             fchs->cat_info == FC_CAT_VFT_HDR) {
1717                 bfa_stats(fcs, uf.tagged);
1718                 vft = bfa_uf_get_frmbuf(uf);
1719                 if (fcs->port_vfid == vft->vf_id)
1720                         fabric = &fcs->fabric;
1721                 else
1722                         fabric = bfa_fcs_vf_lookup(fcs, (u16) vft->vf_id);
1723
1724                 /*
1725                  * drop frame if vfid is unknown
1726                  */
1727                 if (!fabric) {
1728                         WARN_ON(1);
1729                         bfa_stats(fcs, uf.vfid_unknown);
1730                         bfa_uf_free(uf);
1731                         return;
1732                 }
1733
1734                 /*
1735                  * skip vft header
1736                  */
1737                 fchs = (struct fchs_s *) (vft + 1);
1738                 len -= sizeof(struct fc_vft_s);
1739
1740                 bfa_trc(fcs, vft->vf_id);
1741         } else {
1742                 bfa_stats(fcs, uf.untagged);
1743                 fabric = &fcs->fabric;
1744         }
1745
1746         bfa_trc(fcs, ((u32 *) fchs)[0]);
1747         bfa_trc(fcs, ((u32 *) fchs)[1]);
1748         bfa_trc(fcs, ((u32 *) fchs)[2]);
1749         bfa_trc(fcs, ((u32 *) fchs)[3]);
1750         bfa_trc(fcs, ((u32 *) fchs)[4]);
1751         bfa_trc(fcs, ((u32 *) fchs)[5]);
1752         bfa_trc(fcs, len);
1753
1754         bfa_fcs_fabric_uf_recv(fabric, fchs, len);
1755         bfa_uf_free(uf);
1756 }
1757
1758 void
1759 bfa_fcs_uf_attach(struct bfa_fcs_s *fcs)
1760 {
1761         bfa_uf_recv_register(fcs->bfa, bfa_fcs_uf_recv, fcs);
1762 }