drivers/scsi/bfa/vport.c

   1 /*
   2  * Copyright (c) 2005-2009 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_vport.c FCS virtual port state machine
  20  */
  21
  22 #include <bfa.h>
  23 #include <bfa_svc.h>
  24 #include <fcbuild.h>
  25 #include "fcs_fabric.h"
  26 #include "fcs_lport.h"
  27 #include "fcs_vport.h"
  28 #include "fcs_trcmod.h"
  29 #include "fcs.h"
  30 #include <aen/bfa_aen_lport.h>
  31
  32 BFA_TRC_FILE(FCS, VPORT);
  33
  34 #define __vport_fcs(__vp)       (__vp)->lport.fcs
  35 #define __vport_pwwn(__vp)      (__vp)->lport.port_cfg.pwwn
  36 #define __vport_nwwn(__vp)      (__vp)->lport.port_cfg.nwwn
  37 #define __vport_bfa(__vp)       (__vp)->lport.fcs->bfa
  38 #define __vport_fcid(__vp)      (__vp)->lport.pid
  39 #define __vport_fabric(__vp)    (__vp)->lport.fabric
  40 #define __vport_vfid(__vp)      (__vp)->lport.fabric->vf_id
  41
  42 #define BFA_FCS_VPORT_MAX_RETRIES  5
  43 /*
  44  * Forward declarations
  45  */
  46 static void     bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport);
  47 static void     bfa_fcs_vport_timeout(void *vport_arg);
  48 static void     bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport);
  49 static void     bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport);
  50
  51 /**
  52  *  fcs_vport_sm FCS virtual port state machine
  53  */
  54
  55 /**
  56  * VPort State Machine events
  57  */
  58 enum bfa_fcs_vport_event {
  59         BFA_FCS_VPORT_SM_CREATE = 1,    /*  vport create event */
  60         BFA_FCS_VPORT_SM_DELETE = 2,    /*  vport delete event */
  61         BFA_FCS_VPORT_SM_START = 3,     /*  vport start request */
  62         BFA_FCS_VPORT_SM_STOP = 4,      /*  stop: unsupported */
  63         BFA_FCS_VPORT_SM_ONLINE = 5,    /*  fabric online */
  64         BFA_FCS_VPORT_SM_OFFLINE = 6,   /*  fabric offline event */
  65         BFA_FCS_VPORT_SM_FRMSENT = 7,   /*  fdisc/logo sent events */
  66         BFA_FCS_VPORT_SM_RSP_OK = 8,    /*  good response */
  67         BFA_FCS_VPORT_SM_RSP_ERROR = 9, /*  error/bad response */
  68         BFA_FCS_VPORT_SM_TIMEOUT = 10,  /*  delay timer event */
  69         BFA_FCS_VPORT_SM_DELCOMP = 11,  /*  lport delete completion */
  70         BFA_FCS_VPORT_SM_RSP_DUP_WWN = 12,      /*  Dup wnn error */
  71         BFA_FCS_VPORT_SM_RSP_FAILED = 13,       /*  non-retryable failure */
  72 };
  73
  74 static void     bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
  75                                         enum bfa_fcs_vport_event event);
  76 static void     bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
  77                                          enum bfa_fcs_vport_event event);
  78 static void     bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
  79                                          enum bfa_fcs_vport_event event);
  80 static void     bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
  81                                        enum bfa_fcs_vport_event event);
  82 static void     bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
  83                                              enum bfa_fcs_vport_event event);
  84 static void     bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
  85                                         enum bfa_fcs_vport_event event);
  86 static void     bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
  87                                           enum bfa_fcs_vport_event event);
  88 static void     bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
  89                                          enum bfa_fcs_vport_event event);
  90 static void     bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
  91                                       enum bfa_fcs_vport_event event);
  92 static void     bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
  93                                        enum bfa_fcs_vport_event event);
  94
  95 static struct bfa_sm_table_s vport_sm_table[] = {
  96         {BFA_SM(bfa_fcs_vport_sm_uninit), BFA_FCS_VPORT_UNINIT},
  97         {BFA_SM(bfa_fcs_vport_sm_created), BFA_FCS_VPORT_CREATED},
  98         {BFA_SM(bfa_fcs_vport_sm_offline), BFA_FCS_VPORT_OFFLINE},
  99         {BFA_SM(bfa_fcs_vport_sm_fdisc), BFA_FCS_VPORT_FDISC},
 100         {BFA_SM(bfa_fcs_vport_sm_fdisc_retry), BFA_FCS_VPORT_FDISC_RETRY},
 101         {BFA_SM(bfa_fcs_vport_sm_online), BFA_FCS_VPORT_ONLINE},
 102         {BFA_SM(bfa_fcs_vport_sm_deleting), BFA_FCS_VPORT_DELETING},
 103         {BFA_SM(bfa_fcs_vport_sm_cleanup), BFA_FCS_VPORT_CLEANUP},
 104         {BFA_SM(bfa_fcs_vport_sm_logo), BFA_FCS_VPORT_LOGO},
 105         {BFA_SM(bfa_fcs_vport_sm_error), BFA_FCS_VPORT_ERROR}
 106 };
 107
 108 /**
 109  * Beginning state.
 110  */
 111 static void
 112 bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
 113                         enum bfa_fcs_vport_event event)
 114 {
 115         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 116         bfa_trc(__vport_fcs(vport), event);
 117
 118         switch (event) {
 119         case BFA_FCS_VPORT_SM_CREATE:
 120                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
 121                 bfa_fcs_fabric_addvport(__vport_fabric(vport), vport);
 122                 break;
 123
 124         default:
 125                 bfa_assert(0);
 126         }
 127 }
 128
 129 /**
 130  * Created state - a start event is required to start up the state machine.
 131  */
 132 static void
 133 bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
 134                          enum bfa_fcs_vport_event event)
 135 {
 136         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 137         bfa_trc(__vport_fcs(vport), event);
 138
 139         switch (event) {
 140         case BFA_FCS_VPORT_SM_START:
 141                 if (bfa_fcs_fabric_is_online(__vport_fabric(vport))
 142                     && bfa_fcs_fabric_npiv_capable(__vport_fabric(vport))) {
 143                         bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
 144                         bfa_fcs_vport_do_fdisc(vport);
 145                 } else {
 146                         /**
 147                          * Fabric is offline or not NPIV capable, stay in
 148                          * offline state.
 149                          */
 150                         vport->vport_stats.fab_no_npiv++;
 151                         bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
 152                 }
 153                 break;
 154
 155         case BFA_FCS_VPORT_SM_DELETE:
 156                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
 157                 bfa_fcs_port_delete(&vport->lport);
 158                 break;
 159
 160         case BFA_FCS_VPORT_SM_ONLINE:
 161         case BFA_FCS_VPORT_SM_OFFLINE:
 162                 /**
 163                  * Ignore ONLINE/OFFLINE events from fabric till vport is started.
 164                  */
 165                 break;
 166
 167         default:
 168                 bfa_assert(0);
 169         }
 170 }
 171
 172 /**
 173  * Offline state - awaiting ONLINE event from fabric SM.
 174  */
 175 static void
 176 bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
 177                          enum bfa_fcs_vport_event event)
 178 {
 179         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 180         bfa_trc(__vport_fcs(vport), event);
 181
 182         switch (event) {
 183         case BFA_FCS_VPORT_SM_DELETE:
 184                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
 185                 bfa_fcs_port_delete(&vport->lport);
 186                 break;
 187
 188         case BFA_FCS_VPORT_SM_ONLINE:
 189                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
 190                 vport->fdisc_retries = 0;
 191                 bfa_fcs_vport_do_fdisc(vport);
 192                 break;
 193
 194         case BFA_FCS_VPORT_SM_OFFLINE:
 195                 /*
 196                  * This can happen if the vport couldn't be initialzied due
 197                  * the fact that the npiv was not enabled on the switch. In
 198                  * that case we will put the vport in offline state. However,
 199                  * the link can go down and cause the this event to be sent when
 200                  * we are already offline. Ignore it.
 201                  */
 202                 break;
 203
 204         default:
 205                 bfa_assert(0);
 206         }
 207 }
 208
 209 /**
 210  * FDISC is sent and awaiting reply from fabric.
 211  */
 212 static void
 213 bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
 214                        enum bfa_fcs_vport_event event)
 215 {
 216         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 217         bfa_trc(__vport_fcs(vport), event);
 218
 219         switch (event) {
 220         case BFA_FCS_VPORT_SM_DELETE:
 221                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
 222                 bfa_lps_discard(vport->lps);
 223                 bfa_fcs_vport_do_logo(vport);
 224                 break;
 225
 226         case BFA_FCS_VPORT_SM_OFFLINE:
 227                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
 228                 bfa_lps_discard(vport->lps);
 229                 break;
 230
 231         case BFA_FCS_VPORT_SM_RSP_OK:
 232                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_online);
 233                 bfa_fcs_port_online(&vport->lport);
 234                 break;
 235
 236         case BFA_FCS_VPORT_SM_RSP_ERROR:
 237                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc_retry);
 238                 bfa_timer_start(__vport_bfa(vport), &vport->timer,
 239                                 bfa_fcs_vport_timeout, vport,
 240                                 BFA_FCS_RETRY_TIMEOUT);
 241                 break;
 242
 243         case BFA_FCS_VPORT_SM_RSP_FAILED:
 244                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
 245                 break;
 246
 247         case BFA_FCS_VPORT_SM_RSP_DUP_WWN:
 248                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_error);
 249                 break;
 250
 251         default:
 252                 bfa_assert(0);
 253         }
 254 }
 255
 256 /**
 257  * FDISC attempt failed - a timer is active to retry FDISC.
 258  */
 259 static void
 260 bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
 261                              enum bfa_fcs_vport_event event)
 262 {
 263         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 264         bfa_trc(__vport_fcs(vport), event);
 265
 266         switch (event) {
 267         case BFA_FCS_VPORT_SM_DELETE:
 268                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
 269                 bfa_timer_stop(&vport->timer);
 270                 bfa_fcs_port_delete(&vport->lport);
 271                 break;
 272
 273         case BFA_FCS_VPORT_SM_OFFLINE:
 274                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
 275                 bfa_timer_stop(&vport->timer);
 276                 break;
 277
 278         case BFA_FCS_VPORT_SM_TIMEOUT:
 279                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
 280                 vport->vport_stats.fdisc_retries++;
 281                 vport->fdisc_retries++;
 282                 bfa_fcs_vport_do_fdisc(vport);
 283                 break;
 284
 285         default:
 286                 bfa_assert(0);
 287         }
 288 }
 289
 290 /**
 291  * Vport is online (FDISC is complete).
 292  */
 293 static void
 294 bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
 295                         enum bfa_fcs_vport_event event)
 296 {
 297         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 298         bfa_trc(__vport_fcs(vport), event);
 299
 300         switch (event) {
 301         case BFA_FCS_VPORT_SM_DELETE:
 302                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_deleting);
 303                 bfa_fcs_port_delete(&vport->lport);
 304                 break;
 305
 306         case BFA_FCS_VPORT_SM_OFFLINE:
 307                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
 308                 bfa_lps_discard(vport->lps);
 309                 bfa_fcs_port_offline(&vport->lport);
 310                 break;
 311
 312         default:
 313                 bfa_assert(0);
 314         }
 315 }
 316
 317 /**
 318  * Vport is being deleted - awaiting lport delete completion to send
 319  * LOGO to fabric.
 320  */
 321 static void
 322 bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
 323                           enum bfa_fcs_vport_event event)
 324 {
 325         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 326         bfa_trc(__vport_fcs(vport), event);
 327
 328         switch (event) {
 329         case BFA_FCS_VPORT_SM_DELETE:
 330                 break;
 331
 332         case BFA_FCS_VPORT_SM_DELCOMP:
 333                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
 334                 bfa_fcs_vport_do_logo(vport);
 335                 break;
 336
 337         case BFA_FCS_VPORT_SM_OFFLINE:
 338                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
 339                 break;
 340
 341         default:
 342                 bfa_assert(0);
 343         }
 344 }
 345
 346 /**
 347  * Error State.
 348  * This state will be set when the Vport Creation fails due to errors like
 349  * Dup WWN. In this state only operation allowed is a Vport Delete.
 350  */
 351 static void
 352 bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
 353                        enum bfa_fcs_vport_event event)
 354 {
 355         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 356         bfa_trc(__vport_fcs(vport), event);
 357
 358         switch (event) {
 359         case BFA_FCS_VPORT_SM_DELETE:
 360                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
 361                 bfa_fcs_vport_free(vport);
 362                 break;
 363
 364         default:
 365                 bfa_trc(__vport_fcs(vport), event);
 366         }
 367 }
 368
 369 /**
 370  * Lport cleanup is in progress since vport is being deleted. Fabric is
 371  * offline, so no LOGO is needed to complete vport deletion.
 372  */
 373 static void
 374 bfa_fcs_vport_sm_cleanup(struct bfa_fcs_vport_s *vport,
 375                          enum bfa_fcs_vport_event event)
 376 {
 377         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 378         bfa_trc(__vport_fcs(vport), event);
 379
 380         switch (event) {
 381         case BFA_FCS_VPORT_SM_DELCOMP:
 382                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
 383                 bfa_fcs_vport_free(vport);
 384                 break;
 385
 386         case BFA_FCS_VPORT_SM_DELETE:
 387                 break;
 388
 389         default:
 390                 bfa_assert(0);
 391         }
 392 }
 393
 394 /**
 395  * LOGO is sent to fabric. Vport delete is in progress. Lport delete cleanup
 396  * is done.
 397  */
 398 static void
 399 bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
 400                       enum bfa_fcs_vport_event event)
 401 {
 402         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 403         bfa_trc(__vport_fcs(vport), event);
 404
 405         switch (event) {
 406         case BFA_FCS_VPORT_SM_OFFLINE:
 407                 bfa_lps_discard(vport->lps);
 408                 /*
 409                  * !!! fall through !!!
 410                  */
 411
 412         case BFA_FCS_VPORT_SM_RSP_OK:
 413         case BFA_FCS_VPORT_SM_RSP_ERROR:
 414                 bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
 415                 bfa_fcs_vport_free(vport);
 416                 break;
 417
 418         case BFA_FCS_VPORT_SM_DELETE:
 419                 break;
 420
 421         default:
 422                 bfa_assert(0);
 423         }
 424 }
 425
 426
 427
 428 /**
 429  *  fcs_vport_private FCS virtual port private functions
 430  */
 431
 432 /**
 433  * Send AEN notification
 434  */
 435 static void
 436 bfa_fcs_vport_aen_post(bfa_fcs_lport_t *port, enum bfa_lport_aen_event event)
 437 {
 438         union bfa_aen_data_u aen_data;
 439         struct bfa_log_mod_s *logmod = port->fcs->logm;
 440         enum bfa_port_role role = port->port_cfg.roles;
 441         wwn_t           lpwwn = bfa_fcs_port_get_pwwn(port);
 442         char            lpwwn_ptr[BFA_STRING_32];
 443         char           *role_str[BFA_PORT_ROLE_FCP_MAX / 2 + 1] =
 444                 { "Initiator", "Target", "IPFC" };
 445
 446         wwn2str(lpwwn_ptr, lpwwn);
 447
 448         bfa_assert(role <= BFA_PORT_ROLE_FCP_MAX);
 449
 450         switch (event) {
 451         case BFA_LPORT_AEN_NPIV_DUP_WWN:
 452                 bfa_log(logmod, BFA_AEN_LPORT_NPIV_DUP_WWN, lpwwn_ptr,
 453                         role_str[role / 2]);
 454                 break;
 455         case BFA_LPORT_AEN_NPIV_FABRIC_MAX:
 456                 bfa_log(logmod, BFA_AEN_LPORT_NPIV_FABRIC_MAX, lpwwn_ptr,
 457                         role_str[role / 2]);
 458                 break;
 459         case BFA_LPORT_AEN_NPIV_UNKNOWN:
 460                 bfa_log(logmod, BFA_AEN_LPORT_NPIV_UNKNOWN, lpwwn_ptr,
 461                         role_str[role / 2]);
 462                 break;
 463         default:
 464                 break;
 465         }
 466
 467         aen_data.lport.vf_id = port->fabric->vf_id;
 468         aen_data.lport.roles = role;
 469         aen_data.lport.ppwwn =
 470                 bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(port->fcs));
 471         aen_data.lport.lpwwn = lpwwn;
 472 }
 473
 474 /**
 475  * This routine will be called to send a FDISC command.
 476  */
 477 static void
 478 bfa_fcs_vport_do_fdisc(struct bfa_fcs_vport_s *vport)
 479 {
 480         bfa_lps_fdisc(vport->lps, vport,
 481                       bfa_pport_get_maxfrsize(__vport_bfa(vport)),
 482                       __vport_pwwn(vport), __vport_nwwn(vport));
 483         vport->vport_stats.fdisc_sent++;
 484 }
 485
 486 static void
 487 bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport)
 488 {
 489         u8         lsrjt_rsn = bfa_lps_get_lsrjt_rsn(vport->lps);
 490         u8         lsrjt_expl = bfa_lps_get_lsrjt_expl(vport->lps);
 491
 492         bfa_trc(__vport_fcs(vport), lsrjt_rsn);
 493         bfa_trc(__vport_fcs(vport), lsrjt_expl);
 494
 495         /*
 496          * For certain reason codes, we don't want to retry.
 497          */
 498         switch (bfa_lps_get_lsrjt_expl(vport->lps)) {
 499         case FC_LS_RJT_EXP_INV_PORT_NAME:       /* by brocade */
 500         case FC_LS_RJT_EXP_INVALID_NPORT_ID:    /* by Cisco */
 501                 if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
 502                         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 503                 else {
 504                         bfa_fcs_vport_aen_post(&vport->lport,
 505                                                BFA_LPORT_AEN_NPIV_DUP_WWN);
 506                         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_DUP_WWN);
 507                 }
 508                 break;
 509
 510         case FC_LS_RJT_EXP_INSUFF_RES:
 511                 /*
 512                  * This means max logins per port/switch setting on the
 513                  * switch was exceeded.
 514                  */
 515                 if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
 516                         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 517                 else {
 518                         bfa_fcs_vport_aen_post(&vport->lport,
 519                                                BFA_LPORT_AEN_NPIV_FABRIC_MAX);
 520                         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED);
 521                 }
 522                 break;
 523
 524         default:
 525                 if (vport->fdisc_retries == 0)  /* Print only once */
 526                         bfa_fcs_vport_aen_post(&vport->lport,
 527                                                BFA_LPORT_AEN_NPIV_UNKNOWN);
 528                 bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 529         }
 530 }
 531
 532 /**
 533  *      Called to send a logout to the fabric. Used when a V-Port is
 534  *      deleted/stopped.
 535  */
 536 static void
 537 bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport)
 538 {
 539         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 540
 541         vport->vport_stats.logo_sent++;
 542         bfa_lps_fdisclogo(vport->lps);
 543 }
 544
 545 /**
 546  *     This routine will be called by bfa_timer on timer timeouts.
 547  *
 548  *      param[in]       vport           - pointer to bfa_fcs_vport_t.
 549  *      param[out]      vport_status    - pointer to return vport status in
 550  *
 551  *      return
 552  *              void
 553  *
 554 *       Special Considerations:
 555  *
 556  *      note
 557  */
 558 static void
 559 bfa_fcs_vport_timeout(void *vport_arg)
 560 {
 561         struct bfa_fcs_vport_s *vport = (struct bfa_fcs_vport_s *)vport_arg;
 562
 563         vport->vport_stats.fdisc_timeouts++;
 564         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_TIMEOUT);
 565 }
 566
 567 static void
 568 bfa_fcs_vport_free(struct bfa_fcs_vport_s *vport)
 569 {
 570         bfa_fcs_fabric_delvport(__vport_fabric(vport), vport);
 571         bfa_fcb_vport_delete(vport->vport_drv);
 572         bfa_lps_delete(vport->lps);
 573 }
 574
 575
 576
 577 /**
 578  *  fcs_vport_public FCS virtual port public interfaces
 579  */
 580
 581 /**
 582  * Online notification from fabric SM.
 583  */
 584 void
 585 bfa_fcs_vport_online(struct bfa_fcs_vport_s *vport)
 586 {
 587         vport->vport_stats.fab_online++;
 588         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_ONLINE);
 589 }
 590
 591 /**
 592  * Offline notification from fabric SM.
 593  */
 594 void
 595 bfa_fcs_vport_offline(struct bfa_fcs_vport_s *vport)
 596 {
 597         vport->vport_stats.fab_offline++;
 598         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_OFFLINE);
 599 }
 600
 601 /**
 602  * Cleanup notification from fabric SM on link timer expiry.
 603  */
 604 void
 605 bfa_fcs_vport_cleanup(struct bfa_fcs_vport_s *vport)
 606 {
 607         vport->vport_stats.fab_cleanup++;
 608 }
 609
 610 /**
 611  * Delete completion callback from associated lport
 612  */
 613 void
 614 bfa_fcs_vport_delete_comp(struct bfa_fcs_vport_s *vport)
 615 {
 616         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELCOMP);
 617 }
 618
 619 /**
 620  *   Module initialization
 621  */
 622 void
 623 bfa_fcs_vport_modinit(struct bfa_fcs_s *fcs)
 624 {
 625 }
 626
 627 /**
 628  *   Module cleanup
 629  */
 630 void
 631 bfa_fcs_vport_modexit(struct bfa_fcs_s *fcs)
 632 {
 633         bfa_fcs_modexit_comp(fcs);
 634 }
 635
 636 u32
 637 bfa_fcs_vport_get_max(struct bfa_fcs_s *fcs)
 638 {
 639         struct bfa_ioc_attr_s ioc_attr;
 640
 641         bfa_get_attr(fcs->bfa, &ioc_attr);
 642
 643         if (ioc_attr.pci_attr.device_id == BFA_PCI_DEVICE_ID_CT)
 644                 return (BFA_FCS_MAX_VPORTS_SUPP_CT);
 645         else
 646                 return (BFA_FCS_MAX_VPORTS_SUPP_CB);
 647 }
 648
 649
 650
 651 /**
 652  *  fcs_vport_api Virtual port API
 653  */
 654
 655 /**
 656  *      Use this function to instantiate a new FCS vport object. This
 657  *      function will not trigger any HW initialization process (which will be
 658  *      done in vport_start() call)
 659  *
 660  *      param[in] vport -       pointer to bfa_fcs_vport_t. This space
 661  *                                      needs to be allocated by the driver.
 662  *      param[in] fcs           -       FCS instance
 663  *      param[in] vport_cfg     -       vport configuration
 664  *      param[in] vf_id         -       VF_ID if vport is created within a VF.
 665  *                                      FC_VF_ID_NULL to specify base fabric.
 666  *      param[in] vport_drv     -       Opaque handle back to the driver's vport
 667  *                                      structure
 668  *
 669  *      retval BFA_STATUS_OK - on success.
 670  *      retval BFA_STATUS_FAILED - on failure.
 671  */
 672 bfa_status_t
 673 bfa_fcs_vport_create(struct bfa_fcs_vport_s *vport, struct bfa_fcs_s *fcs,
 674                      u16 vf_id, struct bfa_port_cfg_s *vport_cfg,
 675                      struct bfad_vport_s *vport_drv)
 676 {
 677         if (vport_cfg->pwwn == 0)
 678                 return (BFA_STATUS_INVALID_WWN);
 679
 680         if (bfa_fcs_port_get_pwwn(&fcs->fabric.bport) == vport_cfg->pwwn)
 681                 return BFA_STATUS_VPORT_WWN_BP;
 682
 683         if (bfa_fcs_vport_lookup(fcs, vf_id, vport_cfg->pwwn) != NULL)
 684                 return BFA_STATUS_VPORT_EXISTS;
 685
 686         if (bfa_fcs_fabric_vport_count(&fcs->fabric) ==
 687             bfa_fcs_vport_get_max(fcs))
 688                 return BFA_STATUS_VPORT_MAX;
 689
 690         vport->lps = bfa_lps_alloc(fcs->bfa);
 691         if (!vport->lps)
 692                 return BFA_STATUS_VPORT_MAX;
 693
 694         vport->vport_drv = vport_drv;
 695         bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
 696
 697         bfa_fcs_lport_init(&vport->lport, fcs, vf_id, vport_cfg, vport);
 698
 699         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_CREATE);
 700
 701         return BFA_STATUS_OK;
 702 }
 703
 704 /**
 705  *      Use this function initialize the vport.
 706  *
 707  *  @param[in] vport - pointer to bfa_fcs_vport_t.
 708  *
 709  *  @returns None
 710  */
 711 bfa_status_t
 712 bfa_fcs_vport_start(struct bfa_fcs_vport_s *vport)
 713 {
 714         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_START);
 715
 716         return BFA_STATUS_OK;
 717 }
 718
 719 /**
 720  *      Use this function quiese the vport object. This function will return
 721  *      immediately, when the vport is actually stopped, the
 722  *      bfa_drv_vport_stop_cb() will be called.
 723  *
 724  *      param[in] vport - pointer to bfa_fcs_vport_t.
 725  *
 726  *      return None
 727  */
 728 bfa_status_t
 729 bfa_fcs_vport_stop(struct bfa_fcs_vport_s *vport)
 730 {
 731         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_STOP);
 732
 733         return BFA_STATUS_OK;
 734 }
 735
 736 /**
 737  *      Use this function to delete a vport object. Fabric object should
 738  *              be stopped before this function call.
 739  *
 740  *      param[in] vport - pointer to bfa_fcs_vport_t.
 741  *
 742  *      return     None
 743  */
 744 bfa_status_t
 745 bfa_fcs_vport_delete(struct bfa_fcs_vport_s *vport)
 746 {
 747         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_DELETE);
 748
 749         return BFA_STATUS_OK;
 750 }
 751
 752 /**
 753  *      Use this function to get vport's current status info.
 754  *
 755  *      param[in]       vport           pointer to bfa_fcs_vport_t.
 756  *      param[out]      attr            pointer to return vport attributes
 757  *
 758  *      return None
 759  */
 760 void
 761 bfa_fcs_vport_get_attr(struct bfa_fcs_vport_s *vport,
 762                        struct bfa_vport_attr_s *attr)
 763 {
 764         if (vport == NULL || attr == NULL)
 765                 return;
 766
 767         bfa_os_memset(attr, 0, sizeof(struct bfa_vport_attr_s));
 768
 769         bfa_fcs_port_get_attr(&vport->lport, &attr->port_attr);
 770         attr->vport_state = bfa_sm_to_state(vport_sm_table, vport->sm);
 771 }
 772
 773 /**
 774  *      Use this function to get vport's statistics.
 775  *
 776  *      param[in]       vport           pointer to bfa_fcs_vport_t.
 777  *      param[out]      stats           pointer to return vport statistics in
 778  *
 779  *      return None
 780  */
 781 void
 782 bfa_fcs_vport_get_stats(struct bfa_fcs_vport_s *vport,
 783                         struct bfa_vport_stats_s *stats)
 784 {
 785         *stats = vport->vport_stats;
 786 }
 787
 788 /**
 789  *      Use this function to clear vport's statistics.
 790  *
 791  *      param[in]       vport           pointer to bfa_fcs_vport_t.
 792  *
 793  *      return None
 794  */
 795 void
 796 bfa_fcs_vport_clr_stats(struct bfa_fcs_vport_s *vport)
 797 {
 798         bfa_os_memset(&vport->vport_stats, 0, sizeof(struct bfa_vport_stats_s));
 799 }
 800
 801 /**
 802  *      Lookup a virtual port. Excludes base port from lookup.
 803  */
 804 struct bfa_fcs_vport_s *
 805 bfa_fcs_vport_lookup(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t vpwwn)
 806 {
 807         struct bfa_fcs_vport_s *vport;
 808         struct bfa_fcs_fabric_s *fabric;
 809
 810         bfa_trc(fcs, vf_id);
 811         bfa_trc(fcs, vpwwn);
 812
 813         fabric = bfa_fcs_vf_lookup(fcs, vf_id);
 814         if (!fabric) {
 815                 bfa_trc(fcs, vf_id);
 816                 return NULL;
 817         }
 818
 819         vport = bfa_fcs_fabric_vport_lookup(fabric, vpwwn);
 820         return vport;
 821 }
 822
 823 /**
 824  * FDISC Response
 825  */
 826 void
 827 bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status)
 828 {
 829         struct bfa_fcs_vport_s *vport = uarg;
 830
 831         bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
 832         bfa_trc(__vport_fcs(vport), status);
 833
 834         switch (status) {
 835         case BFA_STATUS_OK:
 836                 /*
 837                  * Initialiaze the V-Port fields
 838                  */
 839                 __vport_fcid(vport) = bfa_lps_get_pid(vport->lps);
 840                 vport->vport_stats.fdisc_accepts++;
 841                 bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
 842                 break;
 843
 844         case BFA_STATUS_INVALID_MAC:
 845                 /*
 846                  * Only for CNA
 847                  */
 848                 vport->vport_stats.fdisc_acc_bad++;
 849                 bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 850
 851                 break;
 852
 853         case BFA_STATUS_EPROTOCOL:
 854                 switch (bfa_lps_get_extstatus(vport->lps)) {
 855                 case BFA_EPROTO_BAD_ACCEPT:
 856                         vport->vport_stats.fdisc_acc_bad++;
 857                         break;
 858
 859                 case BFA_EPROTO_UNKNOWN_RSP:
 860                         vport->vport_stats.fdisc_unknown_rsp++;
 861                         break;
 862
 863                 default:
 864                         break;
 865                 }
 866
 867                 bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 868                 break;
 869
 870         case BFA_STATUS_FABRIC_RJT:
 871                 vport->vport_stats.fdisc_rejects++;
 872                 bfa_fcs_vport_fdisc_rejected(vport);
 873                 break;
 874
 875         default:
 876                 vport->vport_stats.fdisc_rsp_err++;
 877                 bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
 878         }
 879 }
 880
 881 /**
 882  * LOGO response
 883  */
 884 void
 885 bfa_cb_lps_fdisclogo_comp(void *bfad, void *uarg)
 886 {
 887         struct bfa_fcs_vport_s *vport = uarg;
 888         bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
 889 }
 890
 891