| 1 | /* |
| 2 | * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. |
| 3 | * All rights reserved |
| 4 | * www.brocade.com |
| 5 | * |
| 6 | * Linux driver for Brocade Fibre Channel Host Bus Adapter. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License (GPL) Version 2 as |
| 10 | * published by the Free Software Foundation |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | /** |
| 19 | * bfa_fcs_port.c BFA FCS port |
| 20 | */ |
| 21 | |
| 22 | #include <fcs/bfa_fcs.h> |
| 23 | #include <fcs/bfa_fcs_lport.h> |
| 24 | #include <fcs/bfa_fcs_rport.h> |
| 25 | #include <fcb/bfa_fcb_port.h> |
| 26 | #include <bfa_svc.h> |
| 27 | #include <log/bfa_log_fcs.h> |
| 28 | #include "fcs.h" |
| 29 | #include "fcs_lport.h" |
| 30 | #include "fcs_vport.h" |
| 31 | #include "fcs_rport.h" |
| 32 | #include "fcs_fcxp.h" |
| 33 | #include "fcs_trcmod.h" |
| 34 | #include "lport_priv.h" |
| 35 | #include <aen/bfa_aen_lport.h> |
| 36 | |
| 37 | BFA_TRC_FILE(FCS, PORT); |
| 38 | |
| 39 | /** |
| 40 | * Forward declarations |
| 41 | */ |
| 42 | |
| 43 | static void bfa_fcs_port_aen_post(struct bfa_fcs_port_s *port, |
| 44 | enum bfa_lport_aen_event event); |
| 45 | static void bfa_fcs_port_send_ls_rjt(struct bfa_fcs_port_s *port, |
| 46 | struct fchs_s *rx_fchs, u8 reason_code, |
| 47 | u8 reason_code_expl); |
| 48 | static void bfa_fcs_port_plogi(struct bfa_fcs_port_s *port, |
| 49 | struct fchs_s *rx_fchs, |
| 50 | struct fc_logi_s *plogi); |
| 51 | static void bfa_fcs_port_online_actions(struct bfa_fcs_port_s *port); |
| 52 | static void bfa_fcs_port_offline_actions(struct bfa_fcs_port_s *port); |
| 53 | static void bfa_fcs_port_unknown_init(struct bfa_fcs_port_s *port); |
| 54 | static void bfa_fcs_port_unknown_online(struct bfa_fcs_port_s *port); |
| 55 | static void bfa_fcs_port_unknown_offline(struct bfa_fcs_port_s *port); |
| 56 | static void bfa_fcs_port_deleted(struct bfa_fcs_port_s *port); |
| 57 | static void bfa_fcs_port_echo(struct bfa_fcs_port_s *port, |
| 58 | struct fchs_s *rx_fchs, |
| 59 | struct fc_echo_s *echo, u16 len); |
| 60 | static void bfa_fcs_port_rnid(struct bfa_fcs_port_s *port, |
| 61 | struct fchs_s *rx_fchs, |
| 62 | struct fc_rnid_cmd_s *rnid, u16 len); |
| 63 | static void bfa_fs_port_get_gen_topo_data(struct bfa_fcs_port_s *port, |
| 64 | struct fc_rnid_general_topology_data_s *gen_topo_data); |
| 65 | |
| 66 | static struct { |
| 67 | void (*init) (struct bfa_fcs_port_s *port); |
| 68 | void (*online) (struct bfa_fcs_port_s *port); |
| 69 | void (*offline) (struct bfa_fcs_port_s *port); |
| 70 | } __port_action[] = { |
| 71 | { |
| 72 | bfa_fcs_port_unknown_init, bfa_fcs_port_unknown_online, |
| 73 | bfa_fcs_port_unknown_offline}, { |
| 74 | bfa_fcs_port_fab_init, bfa_fcs_port_fab_online, |
| 75 | bfa_fcs_port_fab_offline}, { |
| 76 | bfa_fcs_port_loop_init, bfa_fcs_port_loop_online, |
| 77 | bfa_fcs_port_loop_offline}, { |
| 78 | bfa_fcs_port_n2n_init, bfa_fcs_port_n2n_online, |
| 79 | bfa_fcs_port_n2n_offline},}; |
| 80 | |
| 81 | /** |
| 82 | * fcs_port_sm FCS logical port state machine |
| 83 | */ |
| 84 | |
| 85 | enum bfa_fcs_port_event { |
| 86 | BFA_FCS_PORT_SM_CREATE = 1, |
| 87 | BFA_FCS_PORT_SM_ONLINE = 2, |
| 88 | BFA_FCS_PORT_SM_OFFLINE = 3, |
| 89 | BFA_FCS_PORT_SM_DELETE = 4, |
| 90 | BFA_FCS_PORT_SM_DELRPORT = 5, |
| 91 | }; |
| 92 | |
| 93 | static void bfa_fcs_port_sm_uninit(struct bfa_fcs_port_s *port, |
| 94 | enum bfa_fcs_port_event event); |
| 95 | static void bfa_fcs_port_sm_init(struct bfa_fcs_port_s *port, |
| 96 | enum bfa_fcs_port_event event); |
| 97 | static void bfa_fcs_port_sm_online(struct bfa_fcs_port_s *port, |
| 98 | enum bfa_fcs_port_event event); |
| 99 | static void bfa_fcs_port_sm_offline(struct bfa_fcs_port_s *port, |
| 100 | enum bfa_fcs_port_event event); |
| 101 | static void bfa_fcs_port_sm_deleting(struct bfa_fcs_port_s *port, |
| 102 | enum bfa_fcs_port_event event); |
| 103 | |
| 104 | static void |
| 105 | bfa_fcs_port_sm_uninit(struct bfa_fcs_port_s *port, |
| 106 | enum bfa_fcs_port_event event) |
| 107 | { |
| 108 | bfa_trc(port->fcs, port->port_cfg.pwwn); |
| 109 | bfa_trc(port->fcs, event); |
| 110 | |
| 111 | switch (event) { |
| 112 | case BFA_FCS_PORT_SM_CREATE: |
| 113 | bfa_sm_set_state(port, bfa_fcs_port_sm_init); |
| 114 | break; |
| 115 | |
| 116 | default: |
| 117 | bfa_assert(0); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | static void |
| 122 | bfa_fcs_port_sm_init(struct bfa_fcs_port_s *port, enum bfa_fcs_port_event event) |
| 123 | { |
| 124 | bfa_trc(port->fcs, port->port_cfg.pwwn); |
| 125 | bfa_trc(port->fcs, event); |
| 126 | |
| 127 | switch (event) { |
| 128 | case BFA_FCS_PORT_SM_ONLINE: |
| 129 | bfa_sm_set_state(port, bfa_fcs_port_sm_online); |
| 130 | bfa_fcs_port_online_actions(port); |
| 131 | break; |
| 132 | |
| 133 | case BFA_FCS_PORT_SM_DELETE: |
| 134 | bfa_sm_set_state(port, bfa_fcs_port_sm_uninit); |
| 135 | bfa_fcs_port_deleted(port); |
| 136 | break; |
| 137 | |
| 138 | default: |
| 139 | bfa_assert(0); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | static void |
| 144 | bfa_fcs_port_sm_online(struct bfa_fcs_port_s *port, |
| 145 | enum bfa_fcs_port_event event) |
| 146 | { |
| 147 | struct bfa_fcs_rport_s *rport; |
| 148 | struct list_head *qe, *qen; |
| 149 | |
| 150 | bfa_trc(port->fcs, port->port_cfg.pwwn); |
| 151 | bfa_trc(port->fcs, event); |
| 152 | |
| 153 | switch (event) { |
| 154 | case BFA_FCS_PORT_SM_OFFLINE: |
| 155 | bfa_sm_set_state(port, bfa_fcs_port_sm_offline); |
| 156 | bfa_fcs_port_offline_actions(port); |
| 157 | break; |
| 158 | |
| 159 | case BFA_FCS_PORT_SM_DELETE: |
| 160 | |
| 161 | __port_action[port->fabric->fab_type].offline(port); |
| 162 | |
| 163 | if (port->num_rports == 0) { |
| 164 | bfa_sm_set_state(port, bfa_fcs_port_sm_uninit); |
| 165 | bfa_fcs_port_deleted(port); |
| 166 | } else { |
| 167 | bfa_sm_set_state(port, bfa_fcs_port_sm_deleting); |
| 168 | list_for_each_safe(qe, qen, &port->rport_q) { |
| 169 | rport = (struct bfa_fcs_rport_s *)qe; |
| 170 | bfa_fcs_rport_delete(rport); |
| 171 | } |
| 172 | } |
| 173 | break; |
| 174 | |
| 175 | case BFA_FCS_PORT_SM_DELRPORT: |
| 176 | break; |
| 177 | |
| 178 | default: |
| 179 | bfa_assert(0); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | static void |
| 184 | bfa_fcs_port_sm_offline(struct bfa_fcs_port_s *port, |
| 185 | enum bfa_fcs_port_event event) |
| 186 | { |
| 187 | struct bfa_fcs_rport_s *rport; |
| 188 | struct list_head *qe, *qen; |
| 189 | |
| 190 | bfa_trc(port->fcs, port->port_cfg.pwwn); |
| 191 | bfa_trc(port->fcs, event); |
| 192 | |
| 193 | switch (event) { |
| 194 | case BFA_FCS_PORT_SM_ONLINE: |
| 195 | bfa_sm_set_state(port, bfa_fcs_port_sm_online); |
| 196 | bfa_fcs_port_online_actions(port); |
| 197 | break; |
| 198 | |
| 199 | case BFA_FCS_PORT_SM_DELETE: |
| 200 | if (port->num_rports == 0) { |
| 201 | bfa_sm_set_state(port, bfa_fcs_port_sm_uninit); |
| 202 | bfa_fcs_port_deleted(port); |
| 203 | } else { |
| 204 | bfa_sm_set_state(port, bfa_fcs_port_sm_deleting); |
| 205 | list_for_each_safe(qe, qen, &port->rport_q) { |
| 206 | rport = (struct bfa_fcs_rport_s *)qe; |
| 207 | bfa_fcs_rport_delete(rport); |
| 208 | } |
| 209 | } |
| 210 | break; |
| 211 | |
| 212 | case BFA_FCS_PORT_SM_DELRPORT: |
| 213 | case BFA_FCS_PORT_SM_OFFLINE: |
| 214 | break; |
| 215 | |
| 216 | default: |
| 217 | bfa_assert(0); |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | static void |
| 222 | bfa_fcs_port_sm_deleting(struct bfa_fcs_port_s *port, |
| 223 | enum bfa_fcs_port_event event) |
| 224 | { |
| 225 | bfa_trc(port->fcs, port->port_cfg.pwwn); |
| 226 | bfa_trc(port->fcs, event); |
| 227 | |
| 228 | switch (event) { |
| 229 | case BFA_FCS_PORT_SM_DELRPORT: |
| 230 | if (port->num_rports == 0) { |
| 231 | bfa_sm_set_state(port, bfa_fcs_port_sm_uninit); |
| 232 | bfa_fcs_port_deleted(port); |
| 233 | } |
| 234 | break; |
| 235 | |
| 236 | default: |
| 237 | bfa_assert(0); |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | |
| 242 | |
| 243 | /** |
| 244 | * fcs_port_pvt |
| 245 | */ |
| 246 | |
| 247 | /** |
| 248 | * Send AEN notification |
| 249 | */ |
| 250 | static void |
| 251 | bfa_fcs_port_aen_post(struct bfa_fcs_port_s *port, |
| 252 | enum bfa_lport_aen_event event) |
| 253 | { |
| 254 | union bfa_aen_data_u aen_data; |
| 255 | struct bfa_log_mod_s *logmod = port->fcs->logm; |
| 256 | enum bfa_port_role role = port->port_cfg.roles; |
| 257 | wwn_t lpwwn = bfa_fcs_port_get_pwwn(port); |
| 258 | char lpwwn_ptr[BFA_STRING_32]; |
| 259 | char *role_str[BFA_PORT_ROLE_FCP_MAX / 2 + 1] = |
| 260 | { "Initiator", "Target", "IPFC" }; |
| 261 | |
| 262 | wwn2str(lpwwn_ptr, lpwwn); |
| 263 | |
| 264 | bfa_assert(role <= BFA_PORT_ROLE_FCP_MAX); |
| 265 | |
| 266 | switch (event) { |
| 267 | case BFA_LPORT_AEN_ONLINE: |
| 268 | bfa_log(logmod, BFA_AEN_LPORT_ONLINE, lpwwn_ptr, |
| 269 | role_str[role / 2]); |
| 270 | break; |
| 271 | case BFA_LPORT_AEN_OFFLINE: |
| 272 | bfa_log(logmod, BFA_AEN_LPORT_OFFLINE, lpwwn_ptr, |
| 273 | role_str[role / 2]); |
| 274 | break; |
| 275 | case BFA_LPORT_AEN_NEW: |
| 276 | bfa_log(logmod, BFA_AEN_LPORT_NEW, lpwwn_ptr, |
| 277 | role_str[role / 2]); |
| 278 | break; |
| 279 | case BFA_LPORT_AEN_DELETE: |
| 280 | bfa_log(logmod, BFA_AEN_LPORT_DELETE, lpwwn_ptr, |
| 281 | role_str[role / 2]); |
| 282 | break; |
| 283 | case BFA_LPORT_AEN_DISCONNECT: |
| 284 | bfa_log(logmod, BFA_AEN_LPORT_DISCONNECT, lpwwn_ptr, |
| 285 | role_str[role / 2]); |
| 286 | break; |
| 287 | default: |
| 288 | break; |
| 289 | } |
| 290 | |
| 291 | aen_data.lport.vf_id = port->fabric->vf_id; |
| 292 | aen_data.lport.roles = role; |
| 293 | aen_data.lport.ppwwn = |
| 294 | bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(port->fcs)); |
| 295 | aen_data.lport.lpwwn = lpwwn; |
| 296 | } |
| 297 | |
| 298 | /* |
| 299 | * Send a LS reject |
| 300 | */ |
| 301 | static void |
| 302 | bfa_fcs_port_send_ls_rjt(struct bfa_fcs_port_s *port, struct fchs_s *rx_fchs, |
| 303 | u8 reason_code, u8 reason_code_expl) |
| 304 | { |
| 305 | struct fchs_s fchs; |
| 306 | struct bfa_fcxp_s *fcxp; |
| 307 | struct bfa_rport_s *bfa_rport = NULL; |
| 308 | int len; |
| 309 | |
| 310 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 311 | |
| 312 | fcxp = bfa_fcs_fcxp_alloc(port->fcs); |
| 313 | if (!fcxp) |
| 314 | return; |
| 315 | |
| 316 | len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, |
| 317 | bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, |
| 318 | reason_code, reason_code_expl); |
| 319 | |
| 320 | bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag, |
| 321 | BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, |
| 322 | FC_MAX_PDUSZ, 0); |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * Process incoming plogi from a remote port. |
| 327 | */ |
| 328 | static void |
| 329 | bfa_fcs_port_plogi(struct bfa_fcs_port_s *port, struct fchs_s *rx_fchs, |
| 330 | struct fc_logi_s *plogi) |
| 331 | { |
| 332 | struct bfa_fcs_rport_s *rport; |
| 333 | |
| 334 | bfa_trc(port->fcs, rx_fchs->d_id); |
| 335 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 336 | |
| 337 | /* |
| 338 | * If min cfg mode is enabled, drop any incoming PLOGIs |
| 339 | */ |
| 340 | if (__fcs_min_cfg(port->fcs)) { |
| 341 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 342 | return; |
| 343 | } |
| 344 | |
| 345 | if (fc_plogi_parse(rx_fchs) != FC_PARSE_OK) { |
| 346 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 347 | /* |
| 348 | * send a LS reject |
| 349 | */ |
| 350 | bfa_fcs_port_send_ls_rjt(port, rx_fchs, |
| 351 | FC_LS_RJT_RSN_PROTOCOL_ERROR, |
| 352 | FC_LS_RJT_EXP_SPARMS_ERR_OPTIONS); |
| 353 | return; |
| 354 | } |
| 355 | |
| 356 | /** |
| 357 | * Direct Attach P2P mode : verify address assigned by the r-port. |
| 358 | */ |
| 359 | if ((!bfa_fcs_fabric_is_switched(port->fabric)) |
| 360 | && |
| 361 | (memcmp |
| 362 | ((void *)&bfa_fcs_port_get_pwwn(port), (void *)&plogi->port_name, |
| 363 | sizeof(wwn_t)) < 0)) { |
| 364 | if (BFA_FCS_PID_IS_WKA(rx_fchs->d_id)) { |
| 365 | /* |
| 366 | * Address assigned to us cannot be a WKA |
| 367 | */ |
| 368 | bfa_fcs_port_send_ls_rjt(port, rx_fchs, |
| 369 | FC_LS_RJT_RSN_PROTOCOL_ERROR, |
| 370 | FC_LS_RJT_EXP_INVALID_NPORT_ID); |
| 371 | return; |
| 372 | } |
| 373 | port->pid = rx_fchs->d_id; |
| 374 | } |
| 375 | |
| 376 | /** |
| 377 | * First, check if we know the device by pwwn. |
| 378 | */ |
| 379 | rport = bfa_fcs_port_get_rport_by_pwwn(port, plogi->port_name); |
| 380 | if (rport) { |
| 381 | /** |
| 382 | * Direct Attach P2P mode: handle address assigned by the rport. |
| 383 | */ |
| 384 | if ((!bfa_fcs_fabric_is_switched(port->fabric)) |
| 385 | && |
| 386 | (memcmp |
| 387 | ((void *)&bfa_fcs_port_get_pwwn(port), |
| 388 | (void *)&plogi->port_name, sizeof(wwn_t)) < 0)) { |
| 389 | port->pid = rx_fchs->d_id; |
| 390 | rport->pid = rx_fchs->s_id; |
| 391 | } |
| 392 | bfa_fcs_rport_plogi(rport, rx_fchs, plogi); |
| 393 | return; |
| 394 | } |
| 395 | |
| 396 | /** |
| 397 | * Next, lookup rport by PID. |
| 398 | */ |
| 399 | rport = bfa_fcs_port_get_rport_by_pid(port, rx_fchs->s_id); |
| 400 | if (!rport) { |
| 401 | /** |
| 402 | * Inbound PLOGI from a new device. |
| 403 | */ |
| 404 | bfa_fcs_rport_plogi_create(port, rx_fchs, plogi); |
| 405 | return; |
| 406 | } |
| 407 | |
| 408 | /** |
| 409 | * Rport is known only by PID. |
| 410 | */ |
| 411 | if (rport->pwwn) { |
| 412 | /** |
| 413 | * This is a different device with the same pid. Old device |
| 414 | * disappeared. Send implicit LOGO to old device. |
| 415 | */ |
| 416 | bfa_assert(rport->pwwn != plogi->port_name); |
| 417 | bfa_fcs_rport_logo_imp(rport); |
| 418 | |
| 419 | /** |
| 420 | * Inbound PLOGI from a new device (with old PID). |
| 421 | */ |
| 422 | bfa_fcs_rport_plogi_create(port, rx_fchs, plogi); |
| 423 | return; |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * PLOGI crossing each other. |
| 428 | */ |
| 429 | bfa_assert(rport->pwwn == WWN_NULL); |
| 430 | bfa_fcs_rport_plogi(rport, rx_fchs, plogi); |
| 431 | } |
| 432 | |
| 433 | /* |
| 434 | * Process incoming ECHO. |
| 435 | * Since it does not require a login, it is processed here. |
| 436 | */ |
| 437 | static void |
| 438 | bfa_fcs_port_echo(struct bfa_fcs_port_s *port, struct fchs_s *rx_fchs, |
| 439 | struct fc_echo_s *echo, u16 rx_len) |
| 440 | { |
| 441 | struct fchs_s fchs; |
| 442 | struct bfa_fcxp_s *fcxp; |
| 443 | struct bfa_rport_s *bfa_rport = NULL; |
| 444 | int len, pyld_len; |
| 445 | |
| 446 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 447 | bfa_trc(port->fcs, rx_fchs->d_id); |
| 448 | bfa_trc(port->fcs, rx_len); |
| 449 | |
| 450 | fcxp = bfa_fcs_fcxp_alloc(port->fcs); |
| 451 | if (!fcxp) |
| 452 | return; |
| 453 | |
| 454 | len = fc_ls_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, |
| 455 | bfa_fcs_port_get_fcid(port), rx_fchs->ox_id); |
| 456 | |
| 457 | /* |
| 458 | * Copy the payload (if any) from the echo frame |
| 459 | */ |
| 460 | pyld_len = rx_len - sizeof(struct fchs_s); |
| 461 | bfa_trc(port->fcs, pyld_len); |
| 462 | |
| 463 | if (pyld_len > len) |
| 464 | memcpy(((u8 *) bfa_fcxp_get_reqbuf(fcxp)) + |
| 465 | sizeof(struct fc_echo_s), (echo + 1), |
| 466 | (pyld_len - sizeof(struct fc_echo_s))); |
| 467 | |
| 468 | bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag, |
| 469 | BFA_FALSE, FC_CLASS_3, pyld_len, &fchs, NULL, NULL, |
| 470 | FC_MAX_PDUSZ, 0); |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * Process incoming RNID. |
| 475 | * Since it does not require a login, it is processed here. |
| 476 | */ |
| 477 | static void |
| 478 | bfa_fcs_port_rnid(struct bfa_fcs_port_s *port, struct fchs_s *rx_fchs, |
| 479 | struct fc_rnid_cmd_s *rnid, u16 rx_len) |
| 480 | { |
| 481 | struct fc_rnid_common_id_data_s common_id_data; |
| 482 | struct fc_rnid_general_topology_data_s gen_topo_data; |
| 483 | struct fchs_s fchs; |
| 484 | struct bfa_fcxp_s *fcxp; |
| 485 | struct bfa_rport_s *bfa_rport = NULL; |
| 486 | u16 len; |
| 487 | u32 data_format; |
| 488 | |
| 489 | bfa_trc(port->fcs, rx_fchs->s_id); |
| 490 | bfa_trc(port->fcs, rx_fchs->d_id); |
| 491 | bfa_trc(port->fcs, rx_len); |
| 492 | |
| 493 | fcxp = bfa_fcs_fcxp_alloc(port->fcs); |
| 494 | if (!fcxp) |
| 495 | return; |
| 496 | |
| 497 | /* |
| 498 | * Check Node Indentification Data Format |
| 499 | * We only support General Topology Discovery Format. |
| 500 | * For any other requested Data Formats, we return Common Node Id Data |
| 501 | * only, as per FC-LS. |
| 502 | */ |
| 503 | bfa_trc(port->fcs, rnid->node_id_data_format); |
| 504 | if (rnid->node_id_data_format == RNID_NODEID_DATA_FORMAT_DISCOVERY) { |
| 505 | data_format = RNID_NODEID_DATA_FORMAT_DISCOVERY; |
| 506 | /* |
| 507 | * Get General topology data for this port |
| 508 | */ |
| 509 | bfa_fs_port_get_gen_topo_data(port, &gen_topo_data); |
| 510 | } else { |
| 511 | data_format = RNID_NODEID_DATA_FORMAT_COMMON; |
| 512 | } |
| 513 | |
| 514 | /* |
| 515 | * Copy the Node Id Info |
| 516 | */ |
| 517 | common_id_data.port_name = bfa_fcs_port_get_pwwn(port); |
| 518 | common_id_data.node_name = bfa_fcs_port_get_nwwn(port); |
| 519 | |
| 520 | len = fc_rnid_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, |
| 521 | bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, |
| 522 | data_format, &common_id_data, &gen_topo_data); |
| 523 | |
| 524 | bfa_fcxp_send(fcxp, bfa_rport, port->fabric->vf_id, port->lp_tag, |
| 525 | BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, |
| 526 | FC_MAX_PDUSZ, 0); |
| 527 | |
| 528 | return; |
| 529 | } |
| 530 | |
| 531 | /* |
| 532 | * Fill out General Topolpgy Discovery Data for RNID ELS. |
| 533 | */ |
| 534 | static void |
| 535 | bfa_fs_port_get_gen_topo_data(struct bfa_fcs_port_s *port, |
| 536 | struct fc_rnid_general_topology_data_s *gen_topo_data) |
| 537 | { |
| 538 | |
| 539 | bfa_os_memset(gen_topo_data, 0, |
| 540 | sizeof(struct fc_rnid_general_topology_data_s)); |
| 541 | |
| 542 | gen_topo_data->asso_type = bfa_os_htonl(RNID_ASSOCIATED_TYPE_HOST); |
| 543 | gen_topo_data->phy_port_num = 0; /* @todo */ |
| 544 | gen_topo_data->num_attached_nodes = bfa_os_htonl(1); |
| 545 | } |
| 546 | |
| 547 | static void |
| 548 | bfa_fcs_port_online_actions(struct bfa_fcs_port_s *port) |
| 549 | { |
| 550 | bfa_trc(port->fcs, port->fabric->oper_type); |
| 551 | |
| 552 | __port_action[port->fabric->fab_type].init(port); |
| 553 | __port_action[port->fabric->fab_type].online(port); |
| 554 | |
| 555 | bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_ONLINE); |
| 556 | bfa_fcb_port_online(port->fcs->bfad, port->port_cfg.roles, |
| 557 | port->fabric->vf_drv, (port->vport == NULL) ? |
| 558 | NULL : port->vport->vport_drv); |
| 559 | } |
| 560 | |
| 561 | static void |
| 562 | bfa_fcs_port_offline_actions(struct bfa_fcs_port_s *port) |
| 563 | { |
| 564 | struct list_head *qe, *qen; |
| 565 | struct bfa_fcs_rport_s *rport; |
| 566 | |
| 567 | bfa_trc(port->fcs, port->fabric->oper_type); |
| 568 | |
| 569 | __port_action[port->fabric->fab_type].offline(port); |
| 570 | |
| 571 | if (bfa_fcs_fabric_is_online(port->fabric) == BFA_TRUE) |
| 572 | bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_DISCONNECT); |
| 573 | else |
| 574 | bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_OFFLINE); |
| 575 | bfa_fcb_port_offline(port->fcs->bfad, port->port_cfg.roles, |
| 576 | port->fabric->vf_drv, |
| 577 | (port->vport == NULL) ? NULL : port->vport->vport_drv); |
| 578 | |
| 579 | list_for_each_safe(qe, qen, &port->rport_q) { |
| 580 | rport = (struct bfa_fcs_rport_s *)qe; |
| 581 | bfa_fcs_rport_offline(rport); |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | static void |
| 586 | bfa_fcs_port_unknown_init(struct bfa_fcs_port_s *port) |
| 587 | { |
| 588 | bfa_assert(0); |
| 589 | } |
| 590 | |
| 591 | static void |
| 592 | bfa_fcs_port_unknown_online(struct bfa_fcs_port_s *port) |
| 593 | { |
| 594 | bfa_assert(0); |
| 595 | } |
| 596 | |
| 597 | static void |
| 598 | bfa_fcs_port_unknown_offline(struct bfa_fcs_port_s *port) |
| 599 | { |
| 600 | bfa_assert(0); |
| 601 | } |
| 602 | |
| 603 | static void |
| 604 | bfa_fcs_port_deleted(struct bfa_fcs_port_s *port) |
| 605 | { |
| 606 | bfa_fcs_port_aen_post(port, BFA_LPORT_AEN_DELETE); |
| 607 | |
| 608 | /* |
| 609 | * Base port will be deleted by the OS driver |
| 610 | */ |
| 611 | if (port->vport) { |
| 612 | bfa_fcb_port_delete(port->fcs->bfad, port->port_cfg.roles, |
| 613 | port->fabric->vf_drv, |
| 614 | port->vport ? port->vport->vport_drv : NULL); |
| 615 | bfa_fcs_vport_delete_comp(port->vport); |
| 616 | } else { |
| 617 | bfa_fcs_fabric_port_delete_comp(port->fabric); |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | |
| 622 | |
| 623 | /** |
| 624 | * fcs_lport_api BFA FCS port API |
| 625 | */ |
| 626 | /** |
| 627 | * Module initialization |
| 628 | */ |
| 629 | void |
| 630 | bfa_fcs_port_modinit(struct bfa_fcs_s *fcs) |
| 631 | { |
| 632 | |
| 633 | } |
| 634 | |
| 635 | /** |
| 636 | * Module cleanup |
| 637 | */ |
| 638 | void |
| 639 | bfa_fcs_port_modexit(struct bfa_fcs_s *fcs) |
| 640 | { |
| 641 | bfa_fcs_modexit_comp(fcs); |
| 642 | } |
| 643 | |
| 644 | /** |
| 645 | * Unsolicited frame receive handling. |
| 646 | */ |
| 647 | void |
| 648 | bfa_fcs_port_uf_recv(struct bfa_fcs_port_s *lport, struct fchs_s *fchs, |
| 649 | u16 len) |
| 650 | { |
| 651 | u32 pid = fchs->s_id; |
| 652 | struct bfa_fcs_rport_s *rport = NULL; |
| 653 | struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1); |
| 654 | |
| 655 | bfa_stats(lport, uf_recvs); |
| 656 | |
| 657 | if (!bfa_fcs_port_is_online(lport)) { |
| 658 | bfa_stats(lport, uf_recv_drops); |
| 659 | return; |
| 660 | } |
| 661 | |
| 662 | /** |
| 663 | * First, handle ELSs that donot require a login. |
| 664 | */ |
| 665 | /* |
| 666 | * Handle PLOGI first |
| 667 | */ |
| 668 | if ((fchs->type == FC_TYPE_ELS) && |
| 669 | (els_cmd->els_code == FC_ELS_PLOGI)) { |
| 670 | bfa_fcs_port_plogi(lport, fchs, (struct fc_logi_s *) els_cmd); |
| 671 | return; |
| 672 | } |
| 673 | |
| 674 | /* |
| 675 | * Handle ECHO separately. |
| 676 | */ |
| 677 | if ((fchs->type == FC_TYPE_ELS) && (els_cmd->els_code == FC_ELS_ECHO)) { |
| 678 | bfa_fcs_port_echo(lport, fchs, |
| 679 | (struct fc_echo_s *) els_cmd, len); |
| 680 | return; |
| 681 | } |
| 682 | |
| 683 | /* |
| 684 | * Handle RNID separately. |
| 685 | */ |
| 686 | if ((fchs->type == FC_TYPE_ELS) && (els_cmd->els_code == FC_ELS_RNID)) { |
| 687 | bfa_fcs_port_rnid(lport, fchs, |
| 688 | (struct fc_rnid_cmd_s *) els_cmd, len); |
| 689 | return; |
| 690 | } |
| 691 | |
| 692 | /** |
| 693 | * look for a matching remote port ID |
| 694 | */ |
| 695 | rport = bfa_fcs_port_get_rport_by_pid(lport, pid); |
| 696 | if (rport) { |
| 697 | bfa_trc(rport->fcs, fchs->s_id); |
| 698 | bfa_trc(rport->fcs, fchs->d_id); |
| 699 | bfa_trc(rport->fcs, fchs->type); |
| 700 | |
| 701 | bfa_fcs_rport_uf_recv(rport, fchs, len); |
| 702 | return; |
| 703 | } |
| 704 | |
| 705 | /** |
| 706 | * Only handles ELS frames for now. |
| 707 | */ |
| 708 | if (fchs->type != FC_TYPE_ELS) { |
| 709 | bfa_trc(lport->fcs, fchs->type); |
| 710 | bfa_assert(0); |
| 711 | return; |
| 712 | } |
| 713 | |
| 714 | bfa_trc(lport->fcs, els_cmd->els_code); |
| 715 | if (els_cmd->els_code == FC_ELS_RSCN) { |
| 716 | bfa_fcs_port_scn_process_rscn(lport, fchs, len); |
| 717 | return; |
| 718 | } |
| 719 | |
| 720 | if (els_cmd->els_code == FC_ELS_LOGO) { |
| 721 | /** |
| 722 | * @todo Handle LOGO frames received. |
| 723 | */ |
| 724 | bfa_trc(lport->fcs, els_cmd->els_code); |
| 725 | return; |
| 726 | } |
| 727 | |
| 728 | if (els_cmd->els_code == FC_ELS_PRLI) { |
| 729 | /** |
| 730 | * @todo Handle PRLI frames received. |
| 731 | */ |
| 732 | bfa_trc(lport->fcs, els_cmd->els_code); |
| 733 | return; |
| 734 | } |
| 735 | |
| 736 | /** |
| 737 | * Unhandled ELS frames. Send a LS_RJT. |
| 738 | */ |
| 739 | bfa_fcs_port_send_ls_rjt(lport, fchs, FC_LS_RJT_RSN_CMD_NOT_SUPP, |
| 740 | FC_LS_RJT_EXP_NO_ADDL_INFO); |
| 741 | |
| 742 | } |
| 743 | |
| 744 | /** |
| 745 | * PID based Lookup for a R-Port in the Port R-Port Queue |
| 746 | */ |
| 747 | struct bfa_fcs_rport_s * |
| 748 | bfa_fcs_port_get_rport_by_pid(struct bfa_fcs_port_s *port, u32 pid) |
| 749 | { |
| 750 | struct bfa_fcs_rport_s *rport; |
| 751 | struct list_head *qe; |
| 752 | |
| 753 | list_for_each(qe, &port->rport_q) { |
| 754 | rport = (struct bfa_fcs_rport_s *)qe; |
| 755 | if (rport->pid == pid) |
| 756 | return rport; |
| 757 | } |
| 758 | |
| 759 | bfa_trc(port->fcs, pid); |
| 760 | return NULL; |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * PWWN based Lookup for a R-Port in the Port R-Port Queue |
| 765 | */ |
| 766 | struct bfa_fcs_rport_s * |
| 767 | bfa_fcs_port_get_rport_by_pwwn(struct bfa_fcs_port_s *port, wwn_t pwwn) |
| 768 | { |
| 769 | struct bfa_fcs_rport_s *rport; |
| 770 | struct list_head *qe; |
| 771 | |
| 772 | list_for_each(qe, &port->rport_q) { |
| 773 | rport = (struct bfa_fcs_rport_s *)qe; |
| 774 | if (wwn_is_equal(rport->pwwn, pwwn)) |
| 775 | return rport; |
| 776 | } |
| 777 | |
| 778 | bfa_trc(port->fcs, pwwn); |
| 779 | return NULL; |
| 780 | } |
| 781 | |
| 782 | /** |
| 783 | * NWWN based Lookup for a R-Port in the Port R-Port Queue |
| 784 | */ |
| 785 | struct bfa_fcs_rport_s * |
| 786 | bfa_fcs_port_get_rport_by_nwwn(struct bfa_fcs_port_s *port, wwn_t nwwn) |
| 787 | { |
| 788 | struct bfa_fcs_rport_s *rport; |
| 789 | struct list_head *qe; |
| 790 | |
| 791 | list_for_each(qe, &port->rport_q) { |
| 792 | rport = (struct bfa_fcs_rport_s *)qe; |
| 793 | if (wwn_is_equal(rport->nwwn, nwwn)) |
| 794 | return rport; |
| 795 | } |
| 796 | |
| 797 | bfa_trc(port->fcs, nwwn); |
| 798 | return NULL; |
| 799 | } |
| 800 | |
| 801 | /** |
| 802 | * Called by rport module when new rports are discovered. |
| 803 | */ |
| 804 | void |
| 805 | bfa_fcs_port_add_rport(struct bfa_fcs_port_s *port, |
| 806 | struct bfa_fcs_rport_s *rport) |
| 807 | { |
| 808 | list_add_tail(&rport->qe, &port->rport_q); |
| 809 | port->num_rports++; |
| 810 | } |
| 811 | |
| 812 | /** |
| 813 | * Called by rport module to when rports are deleted. |
| 814 | */ |
| 815 | void |
| 816 | bfa_fcs_port_del_rport(struct bfa_fcs_port_s *port, |
| 817 | struct bfa_fcs_rport_s *rport) |
| 818 | { |
| 819 | bfa_assert(bfa_q_is_on_q(&port->rport_q, rport)); |
| 820 | list_del(&rport->qe); |
| 821 | port->num_rports--; |
| 822 | |
| 823 | bfa_sm_send_event(port, BFA_FCS_PORT_SM_DELRPORT); |
| 824 | } |
| 825 | |
| 826 | /** |
| 827 | * Called by fabric for base port when fabric login is complete. |
| 828 | * Called by vport for virtual ports when FDISC is complete. |
| 829 | */ |
| 830 | void |
| 831 | bfa_fcs_port_online(struct bfa_fcs_port_s *port) |
| 832 | { |
| 833 | bfa_sm_send_event(port, BFA_FCS_PORT_SM_ONLINE); |
| 834 | } |
| 835 | |
| 836 | /** |
| 837 | * Called by fabric for base port when fabric goes offline. |
| 838 | * Called by vport for virtual ports when virtual port becomes offline. |
| 839 | */ |
| 840 | void |
| 841 | bfa_fcs_port_offline(struct bfa_fcs_port_s *port) |
| 842 | { |
| 843 | bfa_sm_send_event(port, BFA_FCS_PORT_SM_OFFLINE); |
| 844 | } |
| 845 | |
| 846 | /** |
| 847 | * Called by fabric to delete base lport and associated resources. |
| 848 | * |
| 849 | * Called by vport to delete lport and associated resources. Should call |
| 850 | * bfa_fcs_vport_delete_comp() for vports on completion. |
| 851 | */ |
| 852 | void |
| 853 | bfa_fcs_port_delete(struct bfa_fcs_port_s *port) |
| 854 | { |
| 855 | bfa_sm_send_event(port, BFA_FCS_PORT_SM_DELETE); |
| 856 | } |
| 857 | |
| 858 | /** |
| 859 | * Called by fabric in private loop topology to process LIP event. |
| 860 | */ |
| 861 | void |
| 862 | bfa_fcs_port_lip(struct bfa_fcs_port_s *port) |
| 863 | { |
| 864 | } |
| 865 | |
| 866 | /** |
| 867 | * Return TRUE if port is online, else return FALSE |
| 868 | */ |
| 869 | bfa_boolean_t |
| 870 | bfa_fcs_port_is_online(struct bfa_fcs_port_s *port) |
| 871 | { |
| 872 | return bfa_sm_cmp_state(port, bfa_fcs_port_sm_online); |
| 873 | } |
| 874 | |
| 875 | /** |
| 876 | * Logical port initialization of base or virtual port. |
| 877 | * Called by fabric for base port or by vport for virtual ports. |
| 878 | */ |
| 879 | void |
| 880 | bfa_fcs_lport_init(struct bfa_fcs_port_s *lport, struct bfa_fcs_s *fcs, |
| 881 | u16 vf_id, struct bfa_port_cfg_s *port_cfg, |
| 882 | struct bfa_fcs_vport_s *vport) |
| 883 | { |
| 884 | lport->fcs = fcs; |
| 885 | lport->fabric = bfa_fcs_vf_lookup(fcs, vf_id); |
| 886 | bfa_os_assign(lport->port_cfg, *port_cfg); |
| 887 | lport->vport = vport; |
| 888 | lport->lp_tag = (vport) ? bfa_lps_get_tag(vport->lps) : |
| 889 | bfa_lps_get_tag(lport->fabric->lps); |
| 890 | |
| 891 | INIT_LIST_HEAD(&lport->rport_q); |
| 892 | lport->num_rports = 0; |
| 893 | |
| 894 | lport->bfad_port = |
| 895 | bfa_fcb_port_new(fcs->bfad, lport, lport->port_cfg.roles, |
| 896 | lport->fabric->vf_drv, |
| 897 | vport ? vport->vport_drv : NULL); |
| 898 | bfa_fcs_port_aen_post(lport, BFA_LPORT_AEN_NEW); |
| 899 | |
| 900 | bfa_sm_set_state(lport, bfa_fcs_port_sm_uninit); |
| 901 | bfa_sm_send_event(lport, BFA_FCS_PORT_SM_CREATE); |
| 902 | } |
| 903 | |
| 904 | |
| 905 | |
| 906 | /** |
| 907 | * fcs_lport_api |
| 908 | */ |
| 909 | |
| 910 | void |
| 911 | bfa_fcs_port_get_attr(struct bfa_fcs_port_s *port, |
| 912 | struct bfa_port_attr_s *port_attr) |
| 913 | { |
| 914 | if (bfa_sm_cmp_state(port, bfa_fcs_port_sm_online)) |
| 915 | port_attr->pid = port->pid; |
| 916 | else |
| 917 | port_attr->pid = 0; |
| 918 | |
| 919 | port_attr->port_cfg = port->port_cfg; |
| 920 | |
| 921 | if (port->fabric) { |
| 922 | port_attr->port_type = bfa_fcs_fabric_port_type(port->fabric); |
| 923 | port_attr->loopback = bfa_fcs_fabric_is_loopback(port->fabric); |
| 924 | port_attr->fabric_name = bfa_fcs_port_get_fabric_name(port); |
| 925 | memcpy(port_attr->fabric_ip_addr, |
| 926 | bfa_fcs_port_get_fabric_ipaddr(port), |
| 927 | BFA_FCS_FABRIC_IPADDR_SZ); |
| 928 | |
| 929 | if (port->vport != NULL) |
| 930 | port_attr->port_type = BFA_PPORT_TYPE_VPORT; |
| 931 | |
| 932 | } else { |
| 933 | port_attr->port_type = BFA_PPORT_TYPE_UNKNOWN; |
| 934 | port_attr->state = BFA_PORT_UNINIT; |
| 935 | } |
| 936 | |
| 937 | } |
| 938 | |
| 939 | |