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