/* * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. * All rights reserved * www.brocade.com * * Linux driver for Brocade Fibre Channel Host Bus Adapter. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License (GPL) Version 2 as * published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. */ /** * fabric.c Fabric module implementation. */ #include "fcs_fabric.h" #include "fcs_lport.h" #include "fcs_vport.h" #include "fcs_trcmod.h" #include "fcs_fcxp.h" #include "fcs_auth.h" #include "fcs.h" #include "fcbuild.h" #include #include #include BFA_TRC_FILE(FCS, FABRIC); #define BFA_FCS_FABRIC_RETRY_DELAY (2000) /* Milliseconds */ #define BFA_FCS_FABRIC_CLEANUP_DELAY (10000) /* Milliseconds */ #define bfa_fcs_fabric_set_opertype(__fabric) do { \ if (bfa_pport_get_topology((__fabric)->fcs->bfa) \ == BFA_PPORT_TOPOLOGY_P2P) \ (__fabric)->oper_type = BFA_PPORT_TYPE_NPORT; \ else \ (__fabric)->oper_type = BFA_PPORT_TYPE_NLPORT; \ } while (0) /* * forward declarations */ static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_delay(void *cbarg); static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_delete_comp(void *cbarg); static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, u16 len); static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, u16 len); static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric); static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t status, u32 rsp_len, u32 resid_len, struct fchs_s *rspfchs); /** * fcs_fabric_sm fabric state machine functions */ /** * Fabric state machine events */ enum bfa_fcs_fabric_event { BFA_FCS_FABRIC_SM_CREATE = 1, /* fabric create from driver */ BFA_FCS_FABRIC_SM_DELETE = 2, /* fabric delete from driver */ BFA_FCS_FABRIC_SM_LINK_DOWN = 3, /* link down from port */ BFA_FCS_FABRIC_SM_LINK_UP = 4, /* link up from port */ BFA_FCS_FABRIC_SM_CONT_OP = 5, /* continue op from flogi/auth */ BFA_FCS_FABRIC_SM_RETRY_OP = 6, /* continue op from flogi/auth */ BFA_FCS_FABRIC_SM_NO_FABRIC = 7, /* no fabric from flogi/auth */ BFA_FCS_FABRIC_SM_PERF_EVFP = 8, /* perform EVFP from *flogi/auth */ BFA_FCS_FABRIC_SM_ISOLATE = 9, /* isolate from EVFP processing */ BFA_FCS_FABRIC_SM_NO_TAGGING = 10,/* no VFT tagging from EVFP */ BFA_FCS_FABRIC_SM_DELAYED = 11, /* timeout delay event */ BFA_FCS_FABRIC_SM_AUTH_FAILED = 12, /* authentication failed */ BFA_FCS_FABRIC_SM_AUTH_SUCCESS = 13, /* authentication successful */ BFA_FCS_FABRIC_SM_DELCOMP = 14, /* all vports deleted event */ BFA_FCS_FABRIC_SM_LOOPBACK = 15, /* Received our own FLOGI */ BFA_FCS_FABRIC_SM_START = 16, /* fabric delete from driver */ }; static void bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); static void bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event); /** * Beginning state before fabric creation. */ static void bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_CREATE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created); bfa_fcs_fabric_init(fabric); bfa_fcs_lport_init(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, &fabric->bport.port_cfg, NULL); break; case BFA_FCS_FABRIC_SM_LINK_UP: case BFA_FCS_FABRIC_SM_LINK_DOWN: break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Beginning state before fabric creation. */ static void bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_START: if (bfa_pport_is_linkup(fabric->fcs->bfa)) { bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); bfa_fcs_fabric_login(fabric); } else bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); break; case BFA_FCS_FABRIC_SM_LINK_UP: case BFA_FCS_FABRIC_SM_LINK_DOWN: break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit); bfa_fcs_modexit_comp(fabric->fcs); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Link is down, awaiting LINK UP event from port. This is also the * first state at fabric creation. */ static void bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_LINK_UP: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); bfa_fcs_fabric_login(fabric); break; case BFA_FCS_FABRIC_SM_RETRY_OP: break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * FLOGI is in progress, awaiting FLOGI reply. */ static void bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_CONT_OP: bfa_pport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit); fabric->fab_type = BFA_FCS_FABRIC_SWITCHED; if (fabric->auth_reqd && fabric->is_auth) { bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth); bfa_trc(fabric->fcs, event); } else { bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online); bfa_fcs_fabric_notify_online(fabric); } break; case BFA_FCS_FABRIC_SM_RETRY_OP: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi_retry); bfa_timer_start(fabric->fcs->bfa, &fabric->delay_timer, bfa_fcs_fabric_delay, fabric, BFA_FCS_FABRIC_RETRY_DELAY); break; case BFA_FCS_FABRIC_SM_LOOPBACK: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_loopback); bfa_lps_discard(fabric->lps); bfa_fcs_fabric_set_opertype(fabric); break; case BFA_FCS_FABRIC_SM_NO_FABRIC: fabric->fab_type = BFA_FCS_FABRIC_N2N; bfa_pport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit); bfa_fcs_fabric_notify_online(fabric); bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric); break; case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_lps_discard(fabric->lps); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_lps_discard(fabric->lps); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } static void bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_DELAYED: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi); bfa_fcs_fabric_login(fabric); break; case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_timer_stop(&fabric->delay_timer); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_timer_stop(&fabric->delay_timer); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Authentication is in progress, awaiting authentication results. */ static void bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_AUTH_FAILED: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed); bfa_lps_discard(fabric->lps); break; case BFA_FCS_FABRIC_SM_AUTH_SUCCESS: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online); bfa_fcs_fabric_notify_online(fabric); break; case BFA_FCS_FABRIC_SM_PERF_EVFP: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp); break; case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_lps_discard(fabric->lps); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Authentication failed */ static void bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_fcs_fabric_notify_offline(fabric); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Port is in loopback mode. */ static void bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_fcs_fabric_notify_offline(fabric); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * There is no attached fabric - private loop or NPort-to-NPort topology. */ static void bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_lps_discard(fabric->lps); bfa_fcs_fabric_notify_offline(fabric); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; case BFA_FCS_FABRIC_SM_NO_FABRIC: bfa_trc(fabric->fcs, fabric->bb_credit); bfa_pport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Fabric is online - normal operating state. */ static void bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown); bfa_lps_discard(fabric->lps); bfa_fcs_fabric_notify_offline(fabric); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_fcs_fabric_delete(fabric); break; case BFA_FCS_FABRIC_SM_AUTH_FAILED: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed); bfa_lps_discard(fabric->lps); break; case BFA_FCS_FABRIC_SM_AUTH_SUCCESS: break; default: bfa_sm_fault(fabric->fcs, event); } } /** * Exchanging virtual fabric parameters. */ static void bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_CONT_OP: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp_done); break; case BFA_FCS_FABRIC_SM_ISOLATE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_isolated); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * EVFP exchange complete and VFT tagging is enabled. */ static void bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); } /** * Port is isolated after EVFP exchange due to VF_ID mismatch (N and F). */ static void bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); bfa_log(fabric->fcs->logm, BFA_LOG_FCS_FABRIC_ISOLATED, fabric->bport.port_cfg.pwwn, fabric->fcs->port_vfid, fabric->event_arg.swp_vfid); } /** * Fabric is being deleted, awaiting vport delete completions. */ static void bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric, enum bfa_fcs_fabric_event event) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); switch (event) { case BFA_FCS_FABRIC_SM_DELCOMP: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit); bfa_fcs_modexit_comp(fabric->fcs); break; case BFA_FCS_FABRIC_SM_LINK_UP: break; case BFA_FCS_FABRIC_SM_LINK_DOWN: bfa_fcs_fabric_notify_offline(fabric); break; default: bfa_sm_fault(fabric->fcs, event); } } /** * fcs_fabric_private fabric private functions */ static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric) { struct bfa_port_cfg_s *port_cfg = &fabric->bport.port_cfg; port_cfg->roles = BFA_PORT_ROLE_FCP_IM; port_cfg->nwwn = bfa_ioc_get_nwwn(&fabric->fcs->bfa->ioc); port_cfg->pwwn = bfa_ioc_get_pwwn(&fabric->fcs->bfa->ioc); } /** * Port Symbolic Name Creation for base port. */ void bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric) { struct bfa_port_cfg_s *port_cfg = &fabric->bport.port_cfg; struct bfa_adapter_attr_s adapter_attr; struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info; bfa_os_memset((void *)&adapter_attr, 0, sizeof(struct bfa_adapter_attr_s)); bfa_ioc_get_adapter_attr(&fabric->fcs->bfa->ioc, &adapter_attr); /* * Model name/number */ strncpy((char *)&port_cfg->sym_name, adapter_attr.model, BFA_FCS_PORT_SYMBNAME_MODEL_SZ); strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR, sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR)); /* * Driver Version */ strncat((char *)&port_cfg->sym_name, (char *)driver_info->version, BFA_FCS_PORT_SYMBNAME_VERSION_SZ); strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR, sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR)); /* * Host machine name */ strncat((char *)&port_cfg->sym_name, (char *)driver_info->host_machine_name, BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ); strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR, sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR)); /* * Host OS Info : * If OS Patch Info is not there, do not truncate any bytes from the * OS name string and instead copy the entire OS info string (64 bytes). */ if (driver_info->host_os_patch[0] == '\0') { strncat((char *)&port_cfg->sym_name, (char *)driver_info->host_os_name, BFA_FCS_OS_STR_LEN); strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR, sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR)); } else { strncat((char *)&port_cfg->sym_name, (char *)driver_info->host_os_name, BFA_FCS_PORT_SYMBNAME_OSINFO_SZ); strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR, sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR)); /* * Append host OS Patch Info */ strncat((char *)&port_cfg->sym_name, (char *)driver_info->host_os_patch, BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ); } /* * null terminate */ port_cfg->sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0; } /** * bfa lps login completion callback */ void bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status) { struct bfa_fcs_fabric_s *fabric = uarg; bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, status); switch (status) { case BFA_STATUS_OK: fabric->stats.flogi_accepts++; break; case BFA_STATUS_INVALID_MAC: /* * Only for CNA */ fabric->stats.flogi_acc_err++; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); return; case BFA_STATUS_EPROTOCOL: switch (bfa_lps_get_extstatus(fabric->lps)) { case BFA_EPROTO_BAD_ACCEPT: fabric->stats.flogi_acc_err++; break; case BFA_EPROTO_UNKNOWN_RSP: fabric->stats.flogi_unknown_rsp++; break; default: break; } bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); return; case BFA_STATUS_FABRIC_RJT: fabric->stats.flogi_rejects++; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); return; default: fabric->stats.flogi_rsp_err++; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP); return; } fabric->bb_credit = bfa_lps_get_peer_bbcredit(fabric->lps); bfa_trc(fabric->fcs, fabric->bb_credit); if (!bfa_lps_is_brcd_fabric(fabric->lps)) fabric->fabric_name = bfa_lps_get_peer_nwwn(fabric->lps); /* * Check port type. It should be 1 = F-port. */ if (bfa_lps_is_fport(fabric->lps)) { fabric->bport.pid = bfa_lps_get_pid(fabric->lps); fabric->is_npiv = bfa_lps_is_npiv_en(fabric->lps); fabric->is_auth = bfa_lps_is_authreq(fabric->lps); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CONT_OP); } else { /* * Nport-2-Nport direct attached */ fabric->bport.port_topo.pn2n.rem_port_wwn = bfa_lps_get_peer_pwwn(fabric->lps); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC); } bfa_trc(fabric->fcs, fabric->bport.pid); bfa_trc(fabric->fcs, fabric->is_npiv); bfa_trc(fabric->fcs, fabric->is_auth); } /** * Allocate and send FLOGI. */ static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric) { struct bfa_s *bfa = fabric->fcs->bfa; struct bfa_port_cfg_s *pcfg = &fabric->bport.port_cfg; u8 alpa = 0; if (bfa_pport_get_topology(bfa) == BFA_PPORT_TOPOLOGY_LOOP) alpa = bfa_pport_get_myalpa(bfa); bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_pport_get_maxfrsize(bfa), pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd); fabric->stats.flogi_sent++; } static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric) { struct bfa_fcs_vport_s *vport; struct list_head *qe, *qen; bfa_trc(fabric->fcs, fabric->fabric_name); bfa_fcs_fabric_set_opertype(fabric); fabric->stats.fabric_onlines++; /** * notify online event to base and then virtual ports */ bfa_fcs_port_online(&fabric->bport); list_for_each_safe(qe, qen, &fabric->vport_q) { vport = (struct bfa_fcs_vport_s *)qe; bfa_fcs_vport_online(vport); } } static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric) { struct bfa_fcs_vport_s *vport; struct list_head *qe, *qen; bfa_trc(fabric->fcs, fabric->fabric_name); fabric->stats.fabric_offlines++; /** * notify offline event first to vports and then base port. */ list_for_each_safe(qe, qen, &fabric->vport_q) { vport = (struct bfa_fcs_vport_s *)qe; bfa_fcs_vport_offline(vport); } bfa_fcs_port_offline(&fabric->bport); fabric->fabric_name = 0; fabric->fabric_ip_addr[0] = 0; } static void bfa_fcs_fabric_delay(void *cbarg) { struct bfa_fcs_fabric_s *fabric = cbarg; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELAYED); } /** * Delete all vports and wait for vport delete completions. */ static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric) { struct bfa_fcs_vport_s *vport; struct list_head *qe, *qen; list_for_each_safe(qe, qen, &fabric->vport_q) { vport = (struct bfa_fcs_vport_s *)qe; bfa_fcs_vport_delete(vport); } bfa_fcs_port_delete(&fabric->bport); bfa_wc_wait(&fabric->wc); } static void bfa_fcs_fabric_delete_comp(void *cbarg) { struct bfa_fcs_fabric_s *fabric = cbarg; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP); } /** * fcs_fabric_public fabric public functions */ /** * Module initialization */ void bfa_fcs_fabric_modinit(struct bfa_fcs_s *fcs) { struct bfa_fcs_fabric_s *fabric; fabric = &fcs->fabric; bfa_os_memset(fabric, 0, sizeof(struct bfa_fcs_fabric_s)); /** * Initialize base fabric. */ fabric->fcs = fcs; INIT_LIST_HEAD(&fabric->vport_q); INIT_LIST_HEAD(&fabric->vf_q); fabric->lps = bfa_lps_alloc(fcs->bfa); bfa_assert(fabric->lps); /** * Initialize fabric delete completion handler. Fabric deletion is complete * when the last vport delete is complete. */ bfa_wc_init(&fabric->wc, bfa_fcs_fabric_delete_comp, fabric); bfa_wc_up(&fabric->wc); /* For the base port */ bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CREATE); bfa_trc(fcs, 0); } /** * Module cleanup */ void bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs) { struct bfa_fcs_fabric_s *fabric; bfa_trc(fcs, 0); /** * Cleanup base fabric. */ fabric = &fcs->fabric; bfa_lps_delete(fabric->lps); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELETE); } /** * Fabric module start -- kick starts FCS actions */ void bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs) { struct bfa_fcs_fabric_s *fabric; bfa_trc(fcs, 0); fabric = &fcs->fabric; bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_START); } /** * Suspend fabric activity as part of driver suspend. */ void bfa_fcs_fabric_modsusp(struct bfa_fcs_s *fcs) { } bfa_boolean_t bfa_fcs_fabric_is_loopback(struct bfa_fcs_fabric_s *fabric) { return (bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_loopback)); } enum bfa_pport_type bfa_fcs_fabric_port_type(struct bfa_fcs_fabric_s *fabric) { return fabric->oper_type; } /** * Link up notification from BFA physical port module. */ void bfa_fcs_fabric_link_up(struct bfa_fcs_fabric_s *fabric) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_UP); } /** * Link down notification from BFA physical port module. */ void bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric) { bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN); } /** * A child vport is being created in the fabric. * * Call from vport module at vport creation. A list of base port and vports * belonging to a fabric is maintained to propagate link events. * * param[in] fabric - Fabric instance. This can be a base fabric or vf. * param[in] vport - Vport being created. * * @return None (always succeeds) */ void bfa_fcs_fabric_addvport(struct bfa_fcs_fabric_s *fabric, struct bfa_fcs_vport_s *vport) { /** * - add vport to fabric's vport_q */ bfa_trc(fabric->fcs, fabric->vf_id); list_add_tail(&vport->qe, &fabric->vport_q); fabric->num_vports++; bfa_wc_up(&fabric->wc); } /** * A child vport is being deleted from fabric. * * Vport is being deleted. */ void bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric, struct bfa_fcs_vport_s *vport) { list_del(&vport->qe); fabric->num_vports--; bfa_wc_down(&fabric->wc); } /** * Base port is deleted. */ void bfa_fcs_fabric_port_delete_comp(struct bfa_fcs_fabric_s *fabric) { bfa_wc_down(&fabric->wc); } /** * Check if fabric is online. * * param[in] fabric - Fabric instance. This can be a base fabric or vf. * * @return TRUE/FALSE */ int bfa_fcs_fabric_is_online(struct bfa_fcs_fabric_s *fabric) { return (bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_online)); } bfa_status_t bfa_fcs_fabric_addvf(struct bfa_fcs_fabric_s *vf, struct bfa_fcs_s *fcs, struct bfa_port_cfg_s *port_cfg, struct bfad_vf_s *vf_drv) { bfa_sm_set_state(vf, bfa_fcs_fabric_sm_uninit); return BFA_STATUS_OK; } /** * Lookup for a vport withing a fabric given its pwwn */ struct bfa_fcs_vport_s * bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn) { struct bfa_fcs_vport_s *vport; struct list_head *qe; list_for_each(qe, &fabric->vport_q) { vport = (struct bfa_fcs_vport_s *)qe; if (bfa_fcs_port_get_pwwn(&vport->lport) == pwwn) return vport; } return NULL; } /** * In a given fabric, return the number of lports. * * param[in] fabric - Fabric instance. This can be a base fabric or vf. * * @return : 1 or more. */ u16 bfa_fcs_fabric_vport_count(struct bfa_fcs_fabric_s *fabric) { return (fabric->num_vports); } /** * Unsolicited frame receive handling. */ void bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, u16 len) { u32 pid = fchs->d_id; struct bfa_fcs_vport_s *vport; struct list_head *qe; struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1); struct fc_logi_s *flogi = (struct fc_logi_s *) els_cmd; bfa_trc(fabric->fcs, len); bfa_trc(fabric->fcs, pid); /** * Look for our own FLOGI frames being looped back. This means an * external loopback cable is in place. Our own FLOGI frames are * sometimes looped back when switch port gets temporarily bypassed. */ if ((pid == bfa_os_ntoh3b(FC_FABRIC_PORT)) && (els_cmd->els_code == FC_ELS_FLOGI) && (flogi->port_name == bfa_fcs_port_get_pwwn(&fabric->bport))) { bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOOPBACK); return; } /** * FLOGI/EVFP exchanges should be consumed by base fabric. */ if (fchs->d_id == bfa_os_hton3b(FC_FABRIC_PORT)) { bfa_trc(fabric->fcs, pid); bfa_fcs_fabric_process_uf(fabric, fchs, len); return; } if (fabric->bport.pid == pid) { /** * All authentication frames should be routed to auth */ bfa_trc(fabric->fcs, els_cmd->els_code); if (els_cmd->els_code == FC_ELS_AUTH) { bfa_trc(fabric->fcs, els_cmd->els_code); fabric->auth.response = (u8 *) els_cmd; return; } bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs)); bfa_fcs_port_uf_recv(&fabric->bport, fchs, len); return; } /** * look for a matching local port ID */ list_for_each(qe, &fabric->vport_q) { vport = (struct bfa_fcs_vport_s *)qe; if (vport->lport.pid == pid) { bfa_fcs_port_uf_recv(&vport->lport, fchs, len); return; } } bfa_trc(fabric->fcs, els_cmd->els_code); bfa_fcs_port_uf_recv(&fabric->bport, fchs, len); } /** * Unsolicited frames to be processed by fabric. */ static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, u16 len) { struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1); bfa_trc(fabric->fcs, els_cmd->els_code); switch (els_cmd->els_code) { case FC_ELS_FLOGI: bfa_fcs_fabric_process_flogi(fabric, fchs, len); break; default: /* * need to generate a LS_RJT */ break; } } /** * Process incoming FLOGI */ static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs, u16 len) { struct fc_logi_s *flogi = (struct fc_logi_s *) (fchs + 1); struct bfa_fcs_port_s *bport = &fabric->bport; bfa_trc(fabric->fcs, fchs->s_id); fabric->stats.flogi_rcvd++; /* * Check port type. It should be 0 = n-port. */ if (flogi->csp.port_type) { /* * @todo: may need to send a LS_RJT */ bfa_trc(fabric->fcs, flogi->port_name); fabric->stats.flogi_rejected++; return; } fabric->bb_credit = bfa_os_ntohs(flogi->csp.bbcred); bport->port_topo.pn2n.rem_port_wwn = flogi->port_name; bport->port_topo.pn2n.reply_oxid = fchs->ox_id; /* * Send a Flogi Acc */ bfa_fcs_fabric_send_flogi_acc(fabric); bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC); } static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric) { struct bfa_port_cfg_s *pcfg = &fabric->bport.port_cfg; struct bfa_fcs_port_n2n_s *n2n_port = &fabric->bport.port_topo.pn2n; struct bfa_s *bfa = fabric->fcs->bfa; struct bfa_fcxp_s *fcxp; u16 reqlen; struct fchs_s fchs; fcxp = bfa_fcs_fcxp_alloc(fabric->fcs); /** * Do not expect this failure -- expect remote node to retry */ if (!fcxp) return; reqlen = fc_flogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), bfa_os_hton3b(FC_FABRIC_PORT), n2n_port->reply_oxid, pcfg->pwwn, pcfg->nwwn, bfa_pport_get_maxfrsize(bfa), bfa_pport_get_rx_bbcredit(bfa)); bfa_fcxp_send(fcxp, NULL, fabric->vf_id, bfa_lps_get_tag(fabric->lps), BFA_FALSE, FC_CLASS_3, reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric, FC_MAX_PDUSZ, 0); /* Timeout 0 indicates no * response expected */ } /** * Flogi Acc completion callback. */ static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t status, u32 rsp_len, u32 resid_len, struct fchs_s *rspfchs) { struct bfa_fcs_fabric_s *fabric = cbarg; bfa_trc(fabric->fcs, status); } /* * * @param[in] fabric - fabric * @param[in] result - 1 * * @return - none */ void bfa_fcs_auth_finished(struct bfa_fcs_fabric_s *fabric, enum auth_status status) { bfa_trc(fabric->fcs, status); if (status == FC_AUTH_STATE_SUCCESS) bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_AUTH_SUCCESS); else bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_AUTH_FAILED); } /** * Send AEN notification */ static void bfa_fcs_fabric_aen_post(struct bfa_fcs_port_s *port, enum bfa_port_aen_event event) { union bfa_aen_data_u aen_data; struct bfa_log_mod_s *logmod = port->fcs->logm; wwn_t pwwn = bfa_fcs_port_get_pwwn(port); wwn_t fwwn = bfa_fcs_port_get_fabric_name(port); char pwwn_ptr[BFA_STRING_32]; char fwwn_ptr[BFA_STRING_32]; wwn2str(pwwn_ptr, pwwn); wwn2str(fwwn_ptr, fwwn); switch (event) { case BFA_PORT_AEN_FABRIC_NAME_CHANGE: bfa_log(logmod, BFA_AEN_PORT_FABRIC_NAME_CHANGE, pwwn_ptr, fwwn_ptr); break; default: break; } aen_data.port.pwwn = pwwn; aen_data.port.fwwn = fwwn; } /* * * @param[in] fabric - fabric * @param[in] wwn_t - new fabric name * * @return - none */ void bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric, wwn_t fabric_name) { bfa_trc(fabric->fcs, fabric_name); if (fabric->fabric_name == 0) { /* * With BRCD switches, we don't get Fabric Name in FLOGI. * Don't generate a fabric name change event in this case. */ fabric->fabric_name = fabric_name; } else { fabric->fabric_name = fabric_name; /* * Generate a Event */ bfa_fcs_fabric_aen_post(&fabric->bport, BFA_PORT_AEN_FABRIC_NAME_CHANGE); } } /** * Not used by FCS. */ void bfa_cb_lps_flogo_comp(void *bfad, void *uarg) { }