1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc. 4 * Copyright (c) 2014- QLogic Corporation. 5 * All rights reserved 6 * www.qlogic.com 7 * 8 * Linux driver for QLogic BR-series Fibre Channel Host Bus Adapter. 9 */ 10 11 /* 12 * bfa_fcs.c BFA FCS main 13 */ 14 15 #include "bfad_drv.h" 16 #include "bfad_im.h" 17 #include "bfa_fcs.h" 18 #include "bfa_fcbuild.h" 19 20 BFA_TRC_FILE(FCS, FCS); 21 22 /* 23 * fcs_api BFA FCS API 24 */ 25 26 static void 27 bfa_fcs_exit_comp(void *fcs_cbarg) 28 { 29 struct bfa_fcs_s *fcs = fcs_cbarg; 30 struct bfad_s *bfad = fcs->bfad; 31 32 complete(&bfad->comp); 33 } 34 35 /* 36 * fcs initialization, called once after bfa initialization is complete 37 */ 38 void 39 bfa_fcs_init(struct bfa_fcs_s *fcs) 40 { 41 bfa_sm_send_event(&fcs->fabric, BFA_FCS_FABRIC_SM_CREATE); 42 bfa_trc(fcs, 0); 43 } 44 45 /* 46 * fcs_api BFA FCS API 47 */ 48 49 /* 50 * FCS update cfg - reset the pwwn/nwwn of fabric base logical port 51 * with values learned during bfa_init firmware GETATTR REQ. 52 */ 53 void 54 bfa_fcs_update_cfg(struct bfa_fcs_s *fcs) 55 { 56 struct bfa_fcs_fabric_s *fabric = &fcs->fabric; 57 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; 58 struct bfa_ioc_s *ioc = &fabric->fcs->bfa->ioc; 59 60 port_cfg->nwwn = ioc->attr->nwwn; 61 port_cfg->pwwn = ioc->attr->pwwn; 62 } 63 64 /* 65 * Stop FCS operations. 66 */ 67 void 68 bfa_fcs_stop(struct bfa_fcs_s *fcs) 69 { 70 bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs); 71 bfa_wc_up(&fcs->wc); 72 bfa_fcs_fabric_modstop(fcs); 73 bfa_wc_wait(&fcs->wc); 74 } 75 76 /* 77 * fcs pbc vport initialization 78 */ 79 void 80 bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs) 81 { 82 int i, npbc_vports; 83 struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS]; 84 85 /* Initialize pbc vports */ 86 if (!fcs->min_cfg) { 87 npbc_vports = 88 bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports); 89 for (i = 0; i < npbc_vports; i++) 90 bfa_fcb_pbc_vport_create(fcs->bfa->bfad, pbc_vports[i]); 91 } 92 } 93 94 /* 95 * brief 96 * FCS driver details initialization. 97 * 98 * param[in] fcs FCS instance 99 * param[in] driver_info Driver Details 100 * 101 * return None 102 */ 103 void 104 bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs, 105 struct bfa_fcs_driver_info_s *driver_info) 106 { 107 108 fcs->driver_info = *driver_info; 109 110 bfa_fcs_fabric_psymb_init(&fcs->fabric); 111 bfa_fcs_fabric_nsymb_init(&fcs->fabric); 112 } 113 114 /* 115 * brief 116 * FCS instance cleanup and exit. 117 * 118 * param[in] fcs FCS instance 119 * return None 120 */ 121 void 122 bfa_fcs_exit(struct bfa_fcs_s *fcs) 123 { 124 bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs); 125 bfa_wc_up(&fcs->wc); 126 bfa_trc(fcs, 0); 127 bfa_lps_delete(fcs->fabric.lps); 128 bfa_sm_send_event(&fcs->fabric, BFA_FCS_FABRIC_SM_DELETE); 129 bfa_wc_wait(&fcs->wc); 130 } 131 132 /* 133 * Fabric module implementation. 134 */ 135 136 #define BFA_FCS_FABRIC_RETRY_DELAY (2000) /* Milliseconds */ 137 #define BFA_FCS_FABRIC_CLEANUP_DELAY (10000) /* Milliseconds */ 138 139 #define bfa_fcs_fabric_set_opertype(__fabric) do { \ 140 if (bfa_fcport_get_topology((__fabric)->fcs->bfa) \ 141 == BFA_PORT_TOPOLOGY_P2P) { \ 142 if (fabric->fab_type == BFA_FCS_FABRIC_SWITCHED) \ 143 (__fabric)->oper_type = BFA_PORT_TYPE_NPORT; \ 144 else \ 145 (__fabric)->oper_type = BFA_PORT_TYPE_P2P; \ 146 } else \ 147 (__fabric)->oper_type = BFA_PORT_TYPE_NLPORT; \ 148 } while (0) 149 150 /* 151 * forward declarations 152 */ 153 static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric); 154 static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric); 155 static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric); 156 static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric); 157 static void bfa_fcs_fabric_delay(void *cbarg); 158 static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric); 159 static void bfa_fcs_fabric_delete_comp(void *cbarg); 160 static void bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric); 161 static void bfa_fcs_fabric_stop_comp(void *cbarg); 162 static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, 163 struct fchs_s *fchs, u16 len); 164 static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric, 165 struct fchs_s *fchs, u16 len); 166 static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric); 167 static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg, 168 struct bfa_fcxp_s *fcxp, void *cbarg, 169 bfa_status_t status, 170 u32 rsp_len, 171 u32 resid_len, 172 struct fchs_s *rspfchs); 173 174 static void bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric, 175 enum bfa_fcs_fabric_event event); 176 static void bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric, 177 enum bfa_fcs_fabric_event event); 178 static void bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric, 179 enum bfa_fcs_fabric_event event); 180 static void bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric, 181 enum bfa_fcs_fabric_event event); 182 static void bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric, 183 enum bfa_fcs_fabric_event event); 184 static void bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric, 185 enum bfa_fcs_fabric_event event); 186 static void bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric, 187 enum bfa_fcs_fabric_event event); 188 static void bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric, 189 enum bfa_fcs_fabric_event event); 190 static void bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric, 191 enum bfa_fcs_fabric_event event); 192 static void bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric, 193 enum bfa_fcs_fabric_event event); 194 static void bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric, 195 enum bfa_fcs_fabric_event event); 196 static void bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric, 197 enum bfa_fcs_fabric_event event); 198 static void bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric, 199 enum bfa_fcs_fabric_event event); 200 /* 201 * Beginning state before fabric creation. 202 */ 203 static void 204 bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric, 205 enum bfa_fcs_fabric_event event) 206 { 207 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 208 bfa_trc(fabric->fcs, event); 209 210 switch (event) { 211 case BFA_FCS_FABRIC_SM_CREATE: 212 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created); 213 bfa_fcs_fabric_init(fabric); 214 bfa_fcs_lport_init(&fabric->bport, &fabric->bport.port_cfg); 215 break; 216 217 case BFA_FCS_FABRIC_SM_LINK_UP: 218 case BFA_FCS_FABRIC_SM_LINK_DOWN: 219 break; 220 221 default: 222 bfa_sm_fault(fabric->fcs, event); 223 } 224 } 225 226 /* 227 * Beginning state before fabric creation. 228 */ 229 static void 230 bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric, 231 enum bfa_fcs_fabric_event event) 232 { 233 struct bfa_s *bfa = fabric->fcs->bfa; 234 235 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 236 bfa_trc(fabric->fcs, event); 237 238 switch (event) { 239 case BFA_FCS_FABRIC_SM_START: 240 if (!bfa_fcport_is_linkup(fabric->fcs->bfa)) { 241 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 242 break; 243 } 244 if (bfa_fcport_get_topology(bfa) == 245 BFA_PORT_TOPOLOGY_LOOP) { 246 fabric->fab_type = BFA_FCS_FABRIC_LOOP; 247 fabric->bport.pid = bfa_fcport_get_myalpa(bfa); 248 fabric->bport.pid = bfa_hton3b(fabric->bport.pid); 249 bfa_sm_set_state(fabric, 250 bfa_fcs_fabric_sm_online); 251 bfa_fcs_fabric_set_opertype(fabric); 252 bfa_fcs_lport_online(&fabric->bport); 253 } else { 254 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); 255 bfa_fcs_fabric_login(fabric); 256 } 257 break; 258 259 case BFA_FCS_FABRIC_SM_LINK_UP: 260 case BFA_FCS_FABRIC_SM_LINK_DOWN: 261 break; 262 263 case BFA_FCS_FABRIC_SM_DELETE: 264 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 265 bfa_fcs_fabric_delete(fabric); 266 break; 267 268 default: 269 bfa_sm_fault(fabric->fcs, event); 270 } 271 } 272 273 /* 274 * Link is down, awaiting LINK UP event from port. This is also the 275 * first state at fabric creation. 276 */ 277 static void 278 bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric, 279 enum bfa_fcs_fabric_event event) 280 { 281 struct bfa_s *bfa = fabric->fcs->bfa; 282 283 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 284 bfa_trc(fabric->fcs, event); 285 286 switch (event) { 287 case BFA_FCS_FABRIC_SM_LINK_UP: 288 if (bfa_fcport_get_topology(bfa) != BFA_PORT_TOPOLOGY_LOOP) { 289 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); 290 bfa_fcs_fabric_login(fabric); 291 break; 292 } 293 fabric->fab_type = BFA_FCS_FABRIC_LOOP; 294 fabric->bport.pid = bfa_fcport_get_myalpa(bfa); 295 fabric->bport.pid = bfa_hton3b(fabric->bport.pid); 296 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online); 297 bfa_fcs_fabric_set_opertype(fabric); 298 bfa_fcs_lport_online(&fabric->bport); 299 break; 300 301 case BFA_FCS_FABRIC_SM_RETRY_OP: 302 case BFA_FCS_FABRIC_SM_LOOPBACK: 303 break; 304 305 case BFA_FCS_FABRIC_SM_DELETE: 306 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 307 bfa_fcs_fabric_delete(fabric); 308 break; 309 310 case BFA_FCS_FABRIC_SM_STOP: 311 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup); 312 bfa_fcs_fabric_stop(fabric); 313 break; 314 315 default: 316 bfa_sm_fault(fabric->fcs, event); 317 } 318 } 319 320 /* 321 * FLOGI is in progress, awaiting FLOGI reply. 322 */ 323 static void 324 bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric, 325 enum bfa_fcs_fabric_event event) 326 { 327 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 328 bfa_trc(fabric->fcs, event); 329 330 switch (event) { 331 case BFA_FCS_FABRIC_SM_CONT_OP: 332 333 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, 334 fabric->bb_credit); 335 fabric->fab_type = BFA_FCS_FABRIC_SWITCHED; 336 337 if (fabric->auth_reqd && fabric->is_auth) { 338 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth); 339 bfa_trc(fabric->fcs, event); 340 } else { 341 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online); 342 bfa_fcs_fabric_notify_online(fabric); 343 } 344 break; 345 346 case BFA_FCS_FABRIC_SM_RETRY_OP: 347 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi_retry); 348 bfa_timer_start(fabric->fcs->bfa, &fabric->delay_timer, 349 bfa_fcs_fabric_delay, fabric, 350 BFA_FCS_FABRIC_RETRY_DELAY); 351 break; 352 353 case BFA_FCS_FABRIC_SM_LOOPBACK: 354 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_loopback); 355 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 356 bfa_fcs_fabric_set_opertype(fabric); 357 break; 358 359 case BFA_FCS_FABRIC_SM_NO_FABRIC: 360 fabric->fab_type = BFA_FCS_FABRIC_N2N; 361 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, 362 fabric->bb_credit); 363 bfa_fcs_fabric_notify_online(fabric); 364 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric); 365 break; 366 367 case BFA_FCS_FABRIC_SM_LINK_DOWN: 368 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 369 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 370 break; 371 372 case BFA_FCS_FABRIC_SM_DELETE: 373 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 374 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 375 bfa_fcs_fabric_delete(fabric); 376 break; 377 378 default: 379 bfa_sm_fault(fabric->fcs, event); 380 } 381 } 382 383 384 static void 385 bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric, 386 enum bfa_fcs_fabric_event event) 387 { 388 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 389 bfa_trc(fabric->fcs, event); 390 391 switch (event) { 392 case BFA_FCS_FABRIC_SM_DELAYED: 393 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); 394 bfa_fcs_fabric_login(fabric); 395 break; 396 397 case BFA_FCS_FABRIC_SM_LINK_DOWN: 398 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 399 bfa_timer_stop(&fabric->delay_timer); 400 break; 401 402 case BFA_FCS_FABRIC_SM_DELETE: 403 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 404 bfa_timer_stop(&fabric->delay_timer); 405 bfa_fcs_fabric_delete(fabric); 406 break; 407 408 default: 409 bfa_sm_fault(fabric->fcs, event); 410 } 411 } 412 413 /* 414 * Authentication is in progress, awaiting authentication results. 415 */ 416 static void 417 bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric, 418 enum bfa_fcs_fabric_event event) 419 { 420 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 421 bfa_trc(fabric->fcs, event); 422 423 switch (event) { 424 case BFA_FCS_FABRIC_SM_AUTH_FAILED: 425 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed); 426 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 427 break; 428 429 case BFA_FCS_FABRIC_SM_AUTH_SUCCESS: 430 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online); 431 bfa_fcs_fabric_notify_online(fabric); 432 break; 433 434 case BFA_FCS_FABRIC_SM_PERF_EVFP: 435 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp); 436 break; 437 438 case BFA_FCS_FABRIC_SM_LINK_DOWN: 439 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 440 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 441 break; 442 443 case BFA_FCS_FABRIC_SM_DELETE: 444 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 445 bfa_fcs_fabric_delete(fabric); 446 break; 447 448 default: 449 bfa_sm_fault(fabric->fcs, event); 450 } 451 } 452 453 /* 454 * Authentication failed 455 */ 456 void 457 bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric, 458 enum bfa_fcs_fabric_event event) 459 { 460 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 461 bfa_trc(fabric->fcs, event); 462 463 switch (event) { 464 case BFA_FCS_FABRIC_SM_LINK_DOWN: 465 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 466 bfa_fcs_fabric_notify_offline(fabric); 467 break; 468 469 case BFA_FCS_FABRIC_SM_DELETE: 470 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 471 bfa_fcs_fabric_delete(fabric); 472 break; 473 474 default: 475 bfa_sm_fault(fabric->fcs, event); 476 } 477 } 478 479 /* 480 * Port is in loopback mode. 481 */ 482 void 483 bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric, 484 enum bfa_fcs_fabric_event event) 485 { 486 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 487 bfa_trc(fabric->fcs, event); 488 489 switch (event) { 490 case BFA_FCS_FABRIC_SM_LINK_DOWN: 491 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 492 bfa_fcs_fabric_notify_offline(fabric); 493 break; 494 495 case BFA_FCS_FABRIC_SM_DELETE: 496 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 497 bfa_fcs_fabric_delete(fabric); 498 break; 499 500 default: 501 bfa_sm_fault(fabric->fcs, event); 502 } 503 } 504 505 /* 506 * There is no attached fabric - private loop or NPort-to-NPort topology. 507 */ 508 static void 509 bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric, 510 enum bfa_fcs_fabric_event event) 511 { 512 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 513 bfa_trc(fabric->fcs, event); 514 515 switch (event) { 516 case BFA_FCS_FABRIC_SM_LINK_DOWN: 517 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 518 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 519 bfa_fcs_fabric_notify_offline(fabric); 520 break; 521 522 case BFA_FCS_FABRIC_SM_DELETE: 523 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 524 bfa_fcs_fabric_delete(fabric); 525 break; 526 527 case BFA_FCS_FABRIC_SM_NO_FABRIC: 528 bfa_trc(fabric->fcs, fabric->bb_credit); 529 bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, 530 fabric->bb_credit); 531 break; 532 533 case BFA_FCS_FABRIC_SM_RETRY_OP: 534 break; 535 536 default: 537 bfa_sm_fault(fabric->fcs, event); 538 } 539 } 540 541 /* 542 * Fabric is online - normal operating state. 543 */ 544 void 545 bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric, 546 enum bfa_fcs_fabric_event event) 547 { 548 struct bfa_s *bfa = fabric->fcs->bfa; 549 550 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 551 bfa_trc(fabric->fcs, event); 552 553 switch (event) { 554 case BFA_FCS_FABRIC_SM_LINK_DOWN: 555 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); 556 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) { 557 bfa_fcs_lport_offline(&fabric->bport); 558 } else { 559 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 560 bfa_fcs_fabric_notify_offline(fabric); 561 } 562 break; 563 564 case BFA_FCS_FABRIC_SM_DELETE: 565 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); 566 bfa_fcs_fabric_delete(fabric); 567 break; 568 569 case BFA_FCS_FABRIC_SM_STOP: 570 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_stopping); 571 bfa_fcs_fabric_stop(fabric); 572 break; 573 574 case BFA_FCS_FABRIC_SM_AUTH_FAILED: 575 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed); 576 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 577 break; 578 579 case BFA_FCS_FABRIC_SM_AUTH_SUCCESS: 580 break; 581 582 default: 583 bfa_sm_fault(fabric->fcs, event); 584 } 585 } 586 587 /* 588 * Exchanging virtual fabric parameters. 589 */ 590 static void 591 bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric, 592 enum bfa_fcs_fabric_event event) 593 { 594 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 595 bfa_trc(fabric->fcs, event); 596 597 switch (event) { 598 case BFA_FCS_FABRIC_SM_CONT_OP: 599 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp_done); 600 break; 601 602 case BFA_FCS_FABRIC_SM_ISOLATE: 603 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_isolated); 604 break; 605 606 default: 607 bfa_sm_fault(fabric->fcs, event); 608 } 609 } 610 611 /* 612 * EVFP exchange complete and VFT tagging is enabled. 613 */ 614 static void 615 bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric, 616 enum bfa_fcs_fabric_event event) 617 { 618 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 619 bfa_trc(fabric->fcs, event); 620 } 621 622 /* 623 * Port is isolated after EVFP exchange due to VF_ID mismatch (N and F). 624 */ 625 static void 626 bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric, 627 enum bfa_fcs_fabric_event event) 628 { 629 struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad; 630 char pwwn_ptr[BFA_STRING_32]; 631 632 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 633 bfa_trc(fabric->fcs, event); 634 wwn2str(pwwn_ptr, fabric->bport.port_cfg.pwwn); 635 636 BFA_LOG(KERN_INFO, bfad, bfa_log_level, 637 "Port is isolated due to VF_ID mismatch. " 638 "PWWN: %s Port VF_ID: %04x switch port VF_ID: %04x.", 639 pwwn_ptr, fabric->fcs->port_vfid, 640 fabric->event_arg.swp_vfid); 641 } 642 643 /* 644 * Fabric is being deleted, awaiting vport delete completions. 645 */ 646 static void 647 bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric, 648 enum bfa_fcs_fabric_event event) 649 { 650 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 651 bfa_trc(fabric->fcs, event); 652 653 switch (event) { 654 case BFA_FCS_FABRIC_SM_DELCOMP: 655 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit); 656 bfa_wc_down(&fabric->fcs->wc); 657 break; 658 659 case BFA_FCS_FABRIC_SM_LINK_UP: 660 break; 661 662 case BFA_FCS_FABRIC_SM_LINK_DOWN: 663 bfa_fcs_fabric_notify_offline(fabric); 664 break; 665 666 default: 667 bfa_sm_fault(fabric->fcs, event); 668 } 669 } 670 671 /* 672 * Fabric is being stopped, awaiting vport stop completions. 673 */ 674 static void 675 bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric, 676 enum bfa_fcs_fabric_event event) 677 { 678 struct bfa_s *bfa = fabric->fcs->bfa; 679 680 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 681 bfa_trc(fabric->fcs, event); 682 683 switch (event) { 684 case BFA_FCS_FABRIC_SM_STOPCOMP: 685 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) { 686 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created); 687 } else { 688 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup); 689 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_LOGOUT); 690 } 691 break; 692 693 case BFA_FCS_FABRIC_SM_LINK_UP: 694 break; 695 696 case BFA_FCS_FABRIC_SM_LINK_DOWN: 697 if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) 698 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created); 699 else 700 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup); 701 break; 702 703 default: 704 bfa_sm_fault(fabric->fcs, event); 705 } 706 } 707 708 /* 709 * Fabric is being stopped, cleanup without FLOGO 710 */ 711 static void 712 bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric, 713 enum bfa_fcs_fabric_event event) 714 { 715 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 716 bfa_trc(fabric->fcs, event); 717 718 switch (event) { 719 case BFA_FCS_FABRIC_SM_STOPCOMP: 720 case BFA_FCS_FABRIC_SM_LOGOCOMP: 721 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created); 722 bfa_wc_down(&(fabric->fcs)->wc); 723 break; 724 725 case BFA_FCS_FABRIC_SM_LINK_DOWN: 726 /* 727 * Ignore - can get this event if we get notified about IOC down 728 * before the fabric completion callbk is done. 729 */ 730 break; 731 732 default: 733 bfa_sm_fault(fabric->fcs, event); 734 } 735 } 736 737 /* 738 * fcs_fabric_private fabric private functions 739 */ 740 741 static void 742 bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric) 743 { 744 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; 745 746 port_cfg->roles = BFA_LPORT_ROLE_FCP_IM; 747 port_cfg->nwwn = fabric->fcs->bfa->ioc.attr->nwwn; 748 port_cfg->pwwn = fabric->fcs->bfa->ioc.attr->pwwn; 749 } 750 751 /* 752 * Port Symbolic Name Creation for base port. 753 */ 754 void 755 bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric) 756 { 757 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; 758 char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0}; 759 struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info; 760 761 bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model); 762 763 /* Model name/number */ 764 strscpy(port_cfg->sym_name.symname, model, 765 BFA_SYMNAME_MAXLEN); 766 strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR, 767 BFA_SYMNAME_MAXLEN); 768 769 /* Driver Version */ 770 strlcat(port_cfg->sym_name.symname, driver_info->version, 771 BFA_SYMNAME_MAXLEN); 772 strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR, 773 BFA_SYMNAME_MAXLEN); 774 775 /* Host machine name */ 776 strlcat(port_cfg->sym_name.symname, 777 driver_info->host_machine_name, 778 BFA_SYMNAME_MAXLEN); 779 strlcat(port_cfg->sym_name.symname, BFA_FCS_PORT_SYMBNAME_SEPARATOR, 780 BFA_SYMNAME_MAXLEN); 781 782 /* 783 * Host OS Info : 784 * If OS Patch Info is not there, do not truncate any bytes from the 785 * OS name string and instead copy the entire OS info string (64 bytes). 786 */ 787 if (driver_info->host_os_patch[0] == '\0') { 788 strlcat(port_cfg->sym_name.symname, 789 driver_info->host_os_name, 790 BFA_SYMNAME_MAXLEN); 791 strlcat(port_cfg->sym_name.symname, 792 BFA_FCS_PORT_SYMBNAME_SEPARATOR, 793 BFA_SYMNAME_MAXLEN); 794 } else { 795 strlcat(port_cfg->sym_name.symname, 796 driver_info->host_os_name, 797 BFA_SYMNAME_MAXLEN); 798 strlcat(port_cfg->sym_name.symname, 799 BFA_FCS_PORT_SYMBNAME_SEPARATOR, 800 BFA_SYMNAME_MAXLEN); 801 802 /* Append host OS Patch Info */ 803 strlcat(port_cfg->sym_name.symname, 804 driver_info->host_os_patch, 805 BFA_SYMNAME_MAXLEN); 806 } 807 808 /* null terminate */ 809 port_cfg->sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0; 810 } 811 812 /* 813 * Node Symbolic Name Creation for base port and all vports 814 */ 815 void 816 bfa_fcs_fabric_nsymb_init(struct bfa_fcs_fabric_s *fabric) 817 { 818 struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; 819 char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0}; 820 struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info; 821 822 bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model); 823 824 /* Model name/number */ 825 strscpy(port_cfg->node_sym_name.symname, model, 826 BFA_SYMNAME_MAXLEN); 827 strlcat(port_cfg->node_sym_name.symname, 828 BFA_FCS_PORT_SYMBNAME_SEPARATOR, 829 BFA_SYMNAME_MAXLEN); 830 831 /* Driver Version */ 832 strlcat(port_cfg->node_sym_name.symname, (char *)driver_info->version, 833 BFA_SYMNAME_MAXLEN); 834 strlcat(port_cfg->node_sym_name.symname, 835 BFA_FCS_PORT_SYMBNAME_SEPARATOR, 836 BFA_SYMNAME_MAXLEN); 837 838 /* Host machine name */ 839 strlcat(port_cfg->node_sym_name.symname, 840 driver_info->host_machine_name, 841 BFA_SYMNAME_MAXLEN); 842 strlcat(port_cfg->node_sym_name.symname, 843 BFA_FCS_PORT_SYMBNAME_SEPARATOR, 844 BFA_SYMNAME_MAXLEN); 845 846 /* null terminate */ 847 port_cfg->node_sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0; 848 } 849 850 /* 851 * bfa lps login completion callback 852 */ 853 void 854 bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status) 855 { 856 struct bfa_fcs_fabric_s *fabric = uarg; 857 858 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 859 bfa_trc(fabric->fcs, status); 860 861 switch (status) { 862 case BFA_STATUS_OK: 863 fabric->stats.flogi_accepts++; 864 break; 865 866 case BFA_STATUS_INVALID_MAC: 867 /* Only for CNA */ 868 fabric->stats.flogi_acc_err++; 869 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); 870 871 return; 872 873 case BFA_STATUS_EPROTOCOL: 874 switch (fabric->lps->ext_status) { 875 case BFA_EPROTO_BAD_ACCEPT: 876 fabric->stats.flogi_acc_err++; 877 break; 878 879 case BFA_EPROTO_UNKNOWN_RSP: 880 fabric->stats.flogi_unknown_rsp++; 881 break; 882 883 default: 884 break; 885 } 886 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); 887 888 return; 889 890 case BFA_STATUS_FABRIC_RJT: 891 fabric->stats.flogi_rejects++; 892 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); 893 return; 894 895 default: 896 fabric->stats.flogi_rsp_err++; 897 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); 898 return; 899 } 900 901 fabric->bb_credit = fabric->lps->pr_bbcred; 902 bfa_trc(fabric->fcs, fabric->bb_credit); 903 904 if (!(fabric->lps->brcd_switch)) 905 fabric->fabric_name = fabric->lps->pr_nwwn; 906 907 /* 908 * Check port type. It should be 1 = F-port. 909 */ 910 if (fabric->lps->fport) { 911 fabric->bport.pid = fabric->lps->lp_pid; 912 fabric->is_npiv = fabric->lps->npiv_en; 913 fabric->is_auth = fabric->lps->auth_req; 914 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CONT_OP); 915 } else { 916 /* 917 * Nport-2-Nport direct attached 918 */ 919 fabric->bport.port_topo.pn2n.rem_port_wwn = 920 fabric->lps->pr_pwwn; 921 fabric->fab_type = BFA_FCS_FABRIC_N2N; 922 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC); 923 } 924 925 bfa_trc(fabric->fcs, fabric->bport.pid); 926 bfa_trc(fabric->fcs, fabric->is_npiv); 927 bfa_trc(fabric->fcs, fabric->is_auth); 928 } 929 /* 930 * Allocate and send FLOGI. 931 */ 932 static void 933 bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric) 934 { 935 struct bfa_s *bfa = fabric->fcs->bfa; 936 struct bfa_lport_cfg_s *pcfg = &fabric->bport.port_cfg; 937 u8 alpa = 0; 938 939 940 bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa), 941 pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd); 942 943 fabric->stats.flogi_sent++; 944 } 945 946 static void 947 bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric) 948 { 949 struct bfa_fcs_vport_s *vport; 950 struct list_head *qe, *qen; 951 952 bfa_trc(fabric->fcs, fabric->fabric_name); 953 954 bfa_fcs_fabric_set_opertype(fabric); 955 fabric->stats.fabric_onlines++; 956 957 /* 958 * notify online event to base and then virtual ports 959 */ 960 bfa_fcs_lport_online(&fabric->bport); 961 962 list_for_each_safe(qe, qen, &fabric->vport_q) { 963 vport = (struct bfa_fcs_vport_s *) qe; 964 bfa_fcs_vport_online(vport); 965 } 966 } 967 968 static void 969 bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric) 970 { 971 struct bfa_fcs_vport_s *vport; 972 struct list_head *qe, *qen; 973 974 bfa_trc(fabric->fcs, fabric->fabric_name); 975 fabric->stats.fabric_offlines++; 976 977 /* 978 * notify offline event first to vports and then base port. 979 */ 980 list_for_each_safe(qe, qen, &fabric->vport_q) { 981 vport = (struct bfa_fcs_vport_s *) qe; 982 bfa_fcs_vport_offline(vport); 983 } 984 985 bfa_fcs_lport_offline(&fabric->bport); 986 987 fabric->fabric_name = 0; 988 fabric->fabric_ip_addr[0] = 0; 989 } 990 991 static void 992 bfa_fcs_fabric_delay(void *cbarg) 993 { 994 struct bfa_fcs_fabric_s *fabric = cbarg; 995 996 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELAYED); 997 } 998 999 /* 1000 * Stop all vports and wait for vport stop completions. 1001 */ 1002 static void 1003 bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric) 1004 { 1005 struct bfa_fcs_vport_s *vport; 1006 struct list_head *qe, *qen; 1007 1008 bfa_wc_init(&fabric->stop_wc, bfa_fcs_fabric_stop_comp, fabric); 1009 1010 list_for_each_safe(qe, qen, &fabric->vport_q) { 1011 vport = (struct bfa_fcs_vport_s *) qe; 1012 bfa_wc_up(&fabric->stop_wc); 1013 bfa_fcs_vport_fcs_stop(vport); 1014 } 1015 1016 bfa_wc_up(&fabric->stop_wc); 1017 bfa_fcs_lport_stop(&fabric->bport); 1018 bfa_wc_wait(&fabric->stop_wc); 1019 } 1020 1021 /* 1022 * Delete all vports and wait for vport delete completions. 1023 */ 1024 static void 1025 bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric) 1026 { 1027 struct bfa_fcs_vport_s *vport; 1028 struct list_head *qe, *qen; 1029 1030 list_for_each_safe(qe, qen, &fabric->vport_q) { 1031 vport = (struct bfa_fcs_vport_s *) qe; 1032 bfa_fcs_vport_fcs_delete(vport); 1033 } 1034 1035 bfa_fcs_lport_delete(&fabric->bport); 1036 bfa_wc_wait(&fabric->wc); 1037 } 1038 1039 static void 1040 bfa_fcs_fabric_delete_comp(void *cbarg) 1041 { 1042 struct bfa_fcs_fabric_s *fabric = cbarg; 1043 1044 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP); 1045 } 1046 1047 static void 1048 bfa_fcs_fabric_stop_comp(void *cbarg) 1049 { 1050 struct bfa_fcs_fabric_s *fabric = cbarg; 1051 1052 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOPCOMP); 1053 } 1054 1055 /* 1056 * fcs_fabric_public fabric public functions 1057 */ 1058 1059 /* 1060 * Fabric module stop -- stop FCS actions 1061 */ 1062 void 1063 bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs) 1064 { 1065 struct bfa_fcs_fabric_s *fabric; 1066 1067 bfa_trc(fcs, 0); 1068 fabric = &fcs->fabric; 1069 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOP); 1070 } 1071 1072 /* 1073 * Fabric module start -- kick starts FCS actions 1074 */ 1075 void 1076 bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs) 1077 { 1078 struct bfa_fcs_fabric_s *fabric; 1079 1080 bfa_trc(fcs, 0); 1081 fabric = &fcs->fabric; 1082 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_START); 1083 } 1084 1085 1086 /* 1087 * Link up notification from BFA physical port module. 1088 */ 1089 void 1090 bfa_fcs_fabric_link_up(struct bfa_fcs_fabric_s *fabric) 1091 { 1092 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 1093 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_UP); 1094 } 1095 1096 /* 1097 * Link down notification from BFA physical port module. 1098 */ 1099 void 1100 bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric) 1101 { 1102 bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); 1103 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN); 1104 } 1105 1106 /* 1107 * A child vport is being created in the fabric. 1108 * 1109 * Call from vport module at vport creation. A list of base port and vports 1110 * belonging to a fabric is maintained to propagate link events. 1111 * 1112 * param[in] fabric - Fabric instance. This can be a base fabric or vf. 1113 * param[in] vport - Vport being created. 1114 * 1115 * @return None (always succeeds) 1116 */ 1117 void 1118 bfa_fcs_fabric_addvport(struct bfa_fcs_fabric_s *fabric, 1119 struct bfa_fcs_vport_s *vport) 1120 { 1121 /* 1122 * - add vport to fabric's vport_q 1123 */ 1124 bfa_trc(fabric->fcs, fabric->vf_id); 1125 1126 list_add_tail(&vport->qe, &fabric->vport_q); 1127 fabric->num_vports++; 1128 bfa_wc_up(&fabric->wc); 1129 } 1130 1131 /* 1132 * A child vport is being deleted from fabric. 1133 * 1134 * Vport is being deleted. 1135 */ 1136 void 1137 bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric, 1138 struct bfa_fcs_vport_s *vport) 1139 { 1140 list_del(&vport->qe); 1141 fabric->num_vports--; 1142 bfa_wc_down(&fabric->wc); 1143 } 1144 1145 1146 /* 1147 * Lookup for a vport within a fabric given its pwwn 1148 */ 1149 struct bfa_fcs_vport_s * 1150 bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn) 1151 { 1152 struct bfa_fcs_vport_s *vport; 1153 struct list_head *qe; 1154 1155 list_for_each(qe, &fabric->vport_q) { 1156 vport = (struct bfa_fcs_vport_s *) qe; 1157 if (bfa_fcs_lport_get_pwwn(&vport->lport) == pwwn) 1158 return vport; 1159 } 1160 1161 return NULL; 1162 } 1163 1164 1165 /* 1166 * Get OUI of the attached switch. 1167 * 1168 * Note : Use of this function should be avoided as much as possible. 1169 * This function should be used only if there is any requirement 1170 * to check for FOS version below 6.3. 1171 * To check if the attached fabric is a brocade fabric, use 1172 * bfa_lps_is_brcd_fabric() which works for FOS versions 6.3 1173 * or above only. 1174 */ 1175 1176 u16 1177 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric) 1178 { 1179 wwn_t fab_nwwn; 1180 u8 *tmp; 1181 u16 oui; 1182 1183 fab_nwwn = fabric->lps->pr_nwwn; 1184 1185 tmp = (u8 *)&fab_nwwn; 1186 oui = (tmp[3] << 8) | tmp[4]; 1187 1188 return oui; 1189 } 1190 /* 1191 * Unsolicited frame receive handling. 1192 */ 1193 void 1194 bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, 1195 u16 len) 1196 { 1197 u32 pid = fchs->d_id; 1198 struct bfa_fcs_vport_s *vport; 1199 struct list_head *qe; 1200 struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1); 1201 struct fc_logi_s *flogi = (struct fc_logi_s *) els_cmd; 1202 1203 bfa_trc(fabric->fcs, len); 1204 bfa_trc(fabric->fcs, pid); 1205 1206 /* 1207 * Look for our own FLOGI frames being looped back. This means an 1208 * external loopback cable is in place. Our own FLOGI frames are 1209 * sometimes looped back when switch port gets temporarily bypassed. 1210 */ 1211 if ((pid == bfa_ntoh3b(FC_FABRIC_PORT)) && 1212 (els_cmd->els_code == FC_ELS_FLOGI) && 1213 (flogi->port_name == bfa_fcs_lport_get_pwwn(&fabric->bport))) { 1214 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOOPBACK); 1215 return; 1216 } 1217 1218 /* 1219 * FLOGI/EVFP exchanges should be consumed by base fabric. 1220 */ 1221 if (fchs->d_id == bfa_hton3b(FC_FABRIC_PORT)) { 1222 bfa_trc(fabric->fcs, pid); 1223 bfa_fcs_fabric_process_uf(fabric, fchs, len); 1224 return; 1225 } 1226 1227 if (fabric->bport.pid == pid) { 1228 /* 1229 * All authentication frames should be routed to auth 1230 */ 1231 bfa_trc(fabric->fcs, els_cmd->els_code); 1232 if (els_cmd->els_code == FC_ELS_AUTH) { 1233 bfa_trc(fabric->fcs, els_cmd->els_code); 1234 return; 1235 } 1236 1237 bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs)); 1238 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len); 1239 return; 1240 } 1241 1242 /* 1243 * look for a matching local port ID 1244 */ 1245 list_for_each(qe, &fabric->vport_q) { 1246 vport = (struct bfa_fcs_vport_s *) qe; 1247 if (vport->lport.pid == pid) { 1248 bfa_fcs_lport_uf_recv(&vport->lport, fchs, len); 1249 return; 1250 } 1251 } 1252 1253 if (!bfa_fcs_fabric_is_switched(fabric)) 1254 bfa_fcs_lport_uf_recv(&fabric->bport, fchs, len); 1255 1256 bfa_trc(fabric->fcs, fchs->type); 1257 } 1258 1259 /* 1260 * Unsolicited frames to be processed by fabric. 1261 */ 1262 static void 1263 bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, 1264 u16 len) 1265 { 1266 struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1); 1267 1268 bfa_trc(fabric->fcs, els_cmd->els_code); 1269 1270 switch (els_cmd->els_code) { 1271 case FC_ELS_FLOGI: 1272 bfa_fcs_fabric_process_flogi(fabric, fchs, len); 1273 break; 1274 1275 default: 1276 /* 1277 * need to generate a LS_RJT 1278 */ 1279 break; 1280 } 1281 } 1282 1283 /* 1284 * Process incoming FLOGI 1285 */ 1286 static void 1287 bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric, 1288 struct fchs_s *fchs, u16 len) 1289 { 1290 struct fc_logi_s *flogi = (struct fc_logi_s *) (fchs + 1); 1291 struct bfa_fcs_lport_s *bport = &fabric->bport; 1292 1293 bfa_trc(fabric->fcs, fchs->s_id); 1294 1295 fabric->stats.flogi_rcvd++; 1296 /* 1297 * Check port type. It should be 0 = n-port. 1298 */ 1299 if (flogi->csp.port_type) { 1300 /* 1301 * @todo: may need to send a LS_RJT 1302 */ 1303 bfa_trc(fabric->fcs, flogi->port_name); 1304 fabric->stats.flogi_rejected++; 1305 return; 1306 } 1307 1308 fabric->bb_credit = be16_to_cpu(flogi->csp.bbcred); 1309 bport->port_topo.pn2n.rem_port_wwn = flogi->port_name; 1310 bport->port_topo.pn2n.reply_oxid = fchs->ox_id; 1311 1312 /* 1313 * Send a Flogi Acc 1314 */ 1315 bfa_fcs_fabric_send_flogi_acc(fabric); 1316 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC); 1317 } 1318 1319 static void 1320 bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric) 1321 { 1322 struct bfa_lport_cfg_s *pcfg = &fabric->bport.port_cfg; 1323 struct bfa_fcs_lport_n2n_s *n2n_port = &fabric->bport.port_topo.pn2n; 1324 struct bfa_s *bfa = fabric->fcs->bfa; 1325 struct bfa_fcxp_s *fcxp; 1326 u16 reqlen; 1327 struct fchs_s fchs; 1328 1329 fcxp = bfa_fcs_fcxp_alloc(fabric->fcs, BFA_FALSE); 1330 /* 1331 * Do not expect this failure -- expect remote node to retry 1332 */ 1333 if (!fcxp) 1334 return; 1335 1336 reqlen = fc_flogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), 1337 bfa_hton3b(FC_FABRIC_PORT), 1338 n2n_port->reply_oxid, pcfg->pwwn, 1339 pcfg->nwwn, 1340 bfa_fcport_get_maxfrsize(bfa), 1341 bfa_fcport_get_rx_bbcredit(bfa), 0); 1342 1343 bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->bfa_tag, 1344 BFA_FALSE, FC_CLASS_3, 1345 reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric, 1346 FC_MAX_PDUSZ, 0); 1347 } 1348 1349 /* 1350 * Flogi Acc completion callback. 1351 */ 1352 static void 1353 bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, 1354 bfa_status_t status, u32 rsp_len, 1355 u32 resid_len, struct fchs_s *rspfchs) 1356 { 1357 struct bfa_fcs_fabric_s *fabric = cbarg; 1358 1359 bfa_trc(fabric->fcs, status); 1360 } 1361 1362 1363 /* 1364 * Send AEN notification 1365 */ 1366 static void 1367 bfa_fcs_fabric_aen_post(struct bfa_fcs_lport_s *port, 1368 enum bfa_port_aen_event event) 1369 { 1370 struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad; 1371 struct bfa_aen_entry_s *aen_entry; 1372 1373 bfad_get_aen_entry(bfad, aen_entry); 1374 if (!aen_entry) 1375 return; 1376 1377 aen_entry->aen_data.port.pwwn = bfa_fcs_lport_get_pwwn(port); 1378 aen_entry->aen_data.port.fwwn = bfa_fcs_lport_get_fabric_name(port); 1379 1380 /* Send the AEN notification */ 1381 bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq, 1382 BFA_AEN_CAT_PORT, event); 1383 } 1384 1385 /* 1386 * 1387 * @param[in] fabric - fabric 1388 * @param[in] wwn_t - new fabric name 1389 * 1390 * @return - none 1391 */ 1392 void 1393 bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric, 1394 wwn_t fabric_name) 1395 { 1396 struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad; 1397 char pwwn_ptr[BFA_STRING_32]; 1398 char fwwn_ptr[BFA_STRING_32]; 1399 1400 bfa_trc(fabric->fcs, fabric_name); 1401 1402 if (fabric->fabric_name == 0) { 1403 /* 1404 * With BRCD switches, we don't get Fabric Name in FLOGI. 1405 * Don't generate a fabric name change event in this case. 1406 */ 1407 fabric->fabric_name = fabric_name; 1408 } else { 1409 fabric->fabric_name = fabric_name; 1410 wwn2str(pwwn_ptr, bfa_fcs_lport_get_pwwn(&fabric->bport)); 1411 wwn2str(fwwn_ptr, 1412 bfa_fcs_lport_get_fabric_name(&fabric->bport)); 1413 BFA_LOG(KERN_WARNING, bfad, bfa_log_level, 1414 "Base port WWN = %s Fabric WWN = %s\n", 1415 pwwn_ptr, fwwn_ptr); 1416 bfa_fcs_fabric_aen_post(&fabric->bport, 1417 BFA_PORT_AEN_FABRIC_NAME_CHANGE); 1418 } 1419 } 1420 1421 void 1422 bfa_cb_lps_flogo_comp(void *bfad, void *uarg) 1423 { 1424 struct bfa_fcs_fabric_s *fabric = uarg; 1425 bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOGOCOMP); 1426 } 1427 1428 /* 1429 * Returns FCS vf structure for a given vf_id. 1430 * 1431 * param[in] vf_id - VF_ID 1432 * 1433 * return 1434 * If lookup succeeds, retuns fcs vf object, otherwise returns NULL 1435 */ 1436 bfa_fcs_vf_t * 1437 bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id) 1438 { 1439 bfa_trc(fcs, vf_id); 1440 if (vf_id == FC_VF_ID_NULL) 1441 return &fcs->fabric; 1442 1443 return NULL; 1444 } 1445 1446 /* 1447 * Return the list of local logical ports present in the given VF. 1448 * 1449 * @param[in] vf vf for which logical ports are returned 1450 * @param[out] lpwwn returned logical port wwn list 1451 * @param[in,out] nlports in:size of lpwwn list; 1452 * out:total elements present, 1453 * actual elements returned is limited by the size 1454 */ 1455 void 1456 bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports) 1457 { 1458 struct list_head *qe; 1459 struct bfa_fcs_vport_s *vport; 1460 int i = 0; 1461 struct bfa_fcs_s *fcs; 1462 1463 if (vf == NULL || lpwwn == NULL || *nlports == 0) 1464 return; 1465 1466 fcs = vf->fcs; 1467 1468 bfa_trc(fcs, vf->vf_id); 1469 bfa_trc(fcs, (uint32_t) *nlports); 1470 1471 lpwwn[i++] = vf->bport.port_cfg.pwwn; 1472 1473 list_for_each(qe, &vf->vport_q) { 1474 if (i >= *nlports) 1475 break; 1476 1477 vport = (struct bfa_fcs_vport_s *) qe; 1478 lpwwn[i++] = vport->lport.port_cfg.pwwn; 1479 } 1480 1481 bfa_trc(fcs, i); 1482 *nlports = i; 1483 } 1484 1485 /* 1486 * BFA FCS PPORT ( physical port) 1487 */ 1488 static void 1489 bfa_fcs_port_event_handler(void *cbarg, enum bfa_port_linkstate event) 1490 { 1491 struct bfa_fcs_s *fcs = cbarg; 1492 1493 bfa_trc(fcs, event); 1494 1495 switch (event) { 1496 case BFA_PORT_LINKUP: 1497 bfa_fcs_fabric_link_up(&fcs->fabric); 1498 break; 1499 1500 case BFA_PORT_LINKDOWN: 1501 bfa_fcs_fabric_link_down(&fcs->fabric); 1502 break; 1503 1504 default: 1505 WARN_ON(1); 1506 } 1507 } 1508 1509 /* 1510 * BFA FCS UF ( Unsolicited Frames) 1511 */ 1512 1513 /* 1514 * BFA callback for unsolicited frame receive handler. 1515 * 1516 * @param[in] cbarg callback arg for receive handler 1517 * @param[in] uf unsolicited frame descriptor 1518 * 1519 * @return None 1520 */ 1521 static void 1522 bfa_fcs_uf_recv(void *cbarg, struct bfa_uf_s *uf) 1523 { 1524 struct bfa_fcs_s *fcs = (struct bfa_fcs_s *) cbarg; 1525 struct fchs_s *fchs = bfa_uf_get_frmbuf(uf); 1526 u16 len = bfa_uf_get_frmlen(uf); 1527 struct fc_vft_s *vft; 1528 struct bfa_fcs_fabric_s *fabric; 1529 1530 /* 1531 * check for VFT header 1532 */ 1533 if (fchs->routing == FC_RTG_EXT_HDR && 1534 fchs->cat_info == FC_CAT_VFT_HDR) { 1535 bfa_stats(fcs, uf.tagged); 1536 vft = bfa_uf_get_frmbuf(uf); 1537 if (fcs->port_vfid == vft->vf_id) 1538 fabric = &fcs->fabric; 1539 else 1540 fabric = bfa_fcs_vf_lookup(fcs, (u16) vft->vf_id); 1541 1542 /* 1543 * drop frame if vfid is unknown 1544 */ 1545 if (!fabric) { 1546 WARN_ON(1); 1547 bfa_stats(fcs, uf.vfid_unknown); 1548 bfa_uf_free(uf); 1549 return; 1550 } 1551 1552 /* 1553 * skip vft header 1554 */ 1555 fchs = (struct fchs_s *) (vft + 1); 1556 len -= sizeof(struct fc_vft_s); 1557 1558 bfa_trc(fcs, vft->vf_id); 1559 } else { 1560 bfa_stats(fcs, uf.untagged); 1561 fabric = &fcs->fabric; 1562 } 1563 1564 bfa_trc(fcs, ((u32 *) fchs)[0]); 1565 bfa_trc(fcs, ((u32 *) fchs)[1]); 1566 bfa_trc(fcs, ((u32 *) fchs)[2]); 1567 bfa_trc(fcs, ((u32 *) fchs)[3]); 1568 bfa_trc(fcs, ((u32 *) fchs)[4]); 1569 bfa_trc(fcs, ((u32 *) fchs)[5]); 1570 bfa_trc(fcs, len); 1571 1572 bfa_fcs_fabric_uf_recv(fabric, fchs, len); 1573 bfa_uf_free(uf); 1574 } 1575 1576 /* 1577 * fcs attach -- called once to initialize data structures at driver attach time 1578 */ 1579 void 1580 bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad, 1581 bfa_boolean_t min_cfg) 1582 { 1583 struct bfa_fcs_fabric_s *fabric = &fcs->fabric; 1584 1585 fcs->bfa = bfa; 1586 fcs->bfad = bfad; 1587 fcs->min_cfg = min_cfg; 1588 fcs->num_rport_logins = 0; 1589 1590 bfa->fcs = BFA_TRUE; 1591 fcbuild_init(); 1592 1593 bfa_fcport_event_register(fcs->bfa, bfa_fcs_port_event_handler, fcs); 1594 bfa_uf_recv_register(fcs->bfa, bfa_fcs_uf_recv, fcs); 1595 1596 memset(fabric, 0, sizeof(struct bfa_fcs_fabric_s)); 1597 1598 /* 1599 * Initialize base fabric. 1600 */ 1601 fabric->fcs = fcs; 1602 INIT_LIST_HEAD(&fabric->vport_q); 1603 INIT_LIST_HEAD(&fabric->vf_q); 1604 fabric->lps = bfa_lps_alloc(fcs->bfa); 1605 WARN_ON(!fabric->lps); 1606 1607 /* 1608 * Initialize fabric delete completion handler. Fabric deletion is 1609 * complete when the last vport delete is complete. 1610 */ 1611 bfa_wc_init(&fabric->wc, bfa_fcs_fabric_delete_comp, fabric); 1612 bfa_wc_up(&fabric->wc); /* For the base port */ 1613 1614 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit); 1615 bfa_fcs_lport_attach(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, NULL); 1616 } 1617