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