/* * Copyright (c) 2005-2010 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. */ /* * bfa_fcs.c BFA FCS main */ #include "bfad_drv.h" #include "bfad_im.h" #include "bfa_fcs.h" #include "bfa_fcbuild.h" BFA_TRC_FILE(FCS, FCS); /* * FCS sub-modules */ struct bfa_fcs_mod_s { void (*attach) (struct bfa_fcs_s *fcs); void (*modinit) (struct bfa_fcs_s *fcs); void (*modexit) (struct bfa_fcs_s *fcs); }; #define BFA_FCS_MODULE(_mod) { _mod ## _modinit, _mod ## _modexit } static struct bfa_fcs_mod_s fcs_modules[] = { { bfa_fcs_port_attach, NULL, NULL }, { bfa_fcs_uf_attach, NULL, NULL }, { bfa_fcs_fabric_attach, bfa_fcs_fabric_modinit, bfa_fcs_fabric_modexit }, }; /* * fcs_api BFA FCS API */ static void bfa_fcs_exit_comp(void *fcs_cbarg) { struct bfa_fcs_s *fcs = fcs_cbarg; struct bfad_s *bfad = fcs->bfad; complete(&bfad->comp); } /* * fcs_api BFA FCS API */ /* * fcs attach -- called once to initialize data structures at driver attach time */ void bfa_fcs_attach(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad, bfa_boolean_t min_cfg) { int i; struct bfa_fcs_mod_s *mod; fcs->bfa = bfa; fcs->bfad = bfad; fcs->min_cfg = min_cfg; bfa->fcs = BFA_TRUE; fcbuild_init(); for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) { mod = &fcs_modules[i]; if (mod->attach) mod->attach(fcs); } } /* * fcs initialization, called once after bfa initialization is complete */ void bfa_fcs_init(struct bfa_fcs_s *fcs) { int i; struct bfa_fcs_mod_s *mod; for (i = 0; i < sizeof(fcs_modules) / sizeof(fcs_modules[0]); i++) { mod = &fcs_modules[i]; if (mod->modinit) mod->modinit(fcs); } } /* * FCS update cfg - reset the pwwn/nwwn of fabric base logical port * with values learned during bfa_init firmware GETATTR REQ. */ void bfa_fcs_update_cfg(struct bfa_fcs_s *fcs) { struct bfa_fcs_fabric_s *fabric = &fcs->fabric; struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; struct bfa_ioc_s *ioc = &fabric->fcs->bfa->ioc; port_cfg->nwwn = ioc->attr->nwwn; port_cfg->pwwn = ioc->attr->pwwn; } /* * fcs pbc vport initialization */ void bfa_fcs_pbc_vport_init(struct bfa_fcs_s *fcs) { int i, npbc_vports; struct bfi_pbc_vport_s pbc_vports[BFI_PBC_MAX_VPORTS]; /* Initialize pbc vports */ if (!fcs->min_cfg) { npbc_vports = bfa_iocfc_get_pbc_vports(fcs->bfa, pbc_vports); for (i = 0; i < npbc_vports; i++) bfa_fcb_pbc_vport_create(fcs->bfa->bfad, pbc_vports[i]); } } /* * brief * FCS driver details initialization. * * param[in] fcs FCS instance * param[in] driver_info Driver Details * * return None */ void bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs, struct bfa_fcs_driver_info_s *driver_info) { fcs->driver_info = *driver_info; bfa_fcs_fabric_psymb_init(&fcs->fabric); } /* * brief * FCS instance cleanup and exit. * * param[in] fcs FCS instance * return None */ void bfa_fcs_exit(struct bfa_fcs_s *fcs) { struct bfa_fcs_mod_s *mod; int nmods, i; bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs); nmods = sizeof(fcs_modules) / sizeof(fcs_modules[0]); for (i = 0; i < nmods; i++) { mod = &fcs_modules[i]; if (mod->modexit) { bfa_wc_up(&fcs->wc); mod->modexit(fcs); } } bfa_wc_wait(&fcs->wc); } /* * Fabric module implementation. */ #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_fcport_get_topology((__fabric)->fcs->bfa) \ == BFA_PORT_TOPOLOGY_P2P) { \ if (fabric->fab_type == BFA_FCS_FABRIC_SWITCHED) \ (__fabric)->oper_type = BFA_PORT_TYPE_NPORT; \ else \ (__fabric)->oper_type = BFA_PORT_TYPE_P2P; \ } else \ (__fabric)->oper_type = BFA_PORT_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); static u8 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric); static bfa_boolean_t bfa_fcs_fabric_is_bbscn_enabled( struct bfa_fcs_fabric_s *fabric); 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_nofabric(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->bport.port_cfg); 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_fcport_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_deleting); bfa_fcs_fabric_delete(fabric); 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_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit, bfa_fcs_fabric_oper_bbscn(fabric)); 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); bfa_fcs_fabric_set_opertype(fabric); break; case BFA_FCS_FABRIC_SM_NO_FABRIC: fabric->fab_type = BFA_FCS_FABRIC_N2N; bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit, bfa_fcs_fabric_oper_bbscn(fabric)); 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); break; case BFA_FCS_FABRIC_SM_DELETE: bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting); bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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 */ 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. */ 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit, bfa_fcs_fabric_oper_bbscn(fabric)); break; case BFA_FCS_FABRIC_SM_RETRY_OP: break; default: bfa_sm_fault(fabric->fcs, event); } } /* * Fabric is online - normal operating state. */ 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE); 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) { struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad; char pwwn_ptr[BFA_STRING_32]; bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn); bfa_trc(fabric->fcs, event); wwn2str(pwwn_ptr, fabric->bport.port_cfg.pwwn); BFA_LOG(KERN_INFO, bfad, bfa_log_level, "Port is isolated due to VF_ID mismatch. " "PWWN: %s Port VF_ID: %04x switch port VF_ID: %04x.", pwwn_ptr, 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_wc_down(&fabric->fcs->wc); 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_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; port_cfg->roles = BFA_LPORT_ROLE_FCP_IM; port_cfg->nwwn = fabric->fcs->bfa->ioc.attr->nwwn; port_cfg->pwwn = fabric->fcs->bfa->ioc.attr->pwwn; } /* * Port Symbolic Name Creation for base port. */ void bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric) { struct bfa_lport_cfg_s *port_cfg = &fabric->bport.port_cfg; char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0}; struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info; bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model); /* Model name/number */ strncpy((char *)&port_cfg->sym_name, 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 (fabric->lps->ext_status) { 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++; if (fabric->lps->lsrjt_rsn == FC_LS_RJT_RSN_LOGICAL_ERROR && fabric->lps->lsrjt_expl == FC_LS_RJT_EXP_NO_ADDL_INFO) fabric->fcs->bbscn_flogi_rjt = BFA_TRUE; 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 = fabric->lps->pr_bbcred; bfa_trc(fabric->fcs, fabric->bb_credit); if (!(fabric->lps->brcd_switch)) fabric->fabric_name = fabric->lps->pr_nwwn; /* * Check port type. It should be 1 = F-port. */ if (fabric->lps->fport) { fabric->bport.pid = fabric->lps->lp_pid; fabric->is_npiv = fabric->lps->npiv_en; fabric->is_auth = fabric->lps->auth_req; 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 = fabric->lps->pr_pwwn; fabric->fab_type = BFA_FCS_FABRIC_N2N; 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_lport_cfg_s *pcfg = &fabric->bport.port_cfg; u8 alpa = 0, bb_scn = 0; if (bfa_fcport_get_topology(bfa) == BFA_PORT_TOPOLOGY_LOOP) alpa = bfa_fcport_get_myalpa(bfa); if (bfa_fcs_fabric_is_bbscn_enabled(fabric) && (!fabric->fcs->bbscn_flogi_rjt)) bb_scn = BFA_FCS_PORT_DEF_BB_SCN; bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa), pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd, bb_scn); 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_lport_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_lport_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); } /* * Computes operating BB_SCN value */ static u8 bfa_fcs_fabric_oper_bbscn(struct bfa_fcs_fabric_s *fabric) { u8 pr_bbscn = fabric->lps->pr_bbscn; struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa); if (!(fcport->cfg.bb_scn_state && pr_bbscn)) return 0; /* return max of local/remote bb_scn values */ return ((pr_bbscn > BFA_FCS_PORT_DEF_BB_SCN) ? pr_bbscn : BFA_FCS_PORT_DEF_BB_SCN); } /* * Check if BB_SCN can be enabled. */ static bfa_boolean_t bfa_fcs_fabric_is_bbscn_enabled(struct bfa_fcs_fabric_s *fabric) { struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(fabric->fcs->bfa); if (bfa_ioc_get_fcmode(&fabric->fcs->bfa->ioc) && fcport->cfg.bb_scn_state && !bfa_fcport_is_qos_enabled(fabric->fcs->bfa) && !bfa_fcport_is_trunk_enabled(fabric->fcs->bfa)) return BFA_TRUE; else return BFA_FALSE; } /* * 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_fcs_delete(vport); } bfa_fcs_lport_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 */ /* * Attach time initialization. */ void bfa_fcs_fabric_attach(struct bfa_fcs_s *fcs) { struct bfa_fcs_fabric_s *fabric; fabric = &fcs->fabric; 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); WARN_ON(!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_fcs_lport_attach(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, NULL); } void bfa_fcs_fabric_modinit(struct bfa_fcs_s *fcs) { bfa_sm_send_event(&fcs->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); } /* * 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); fabric->fcs->bbscn_flogi_rjt = BFA_FALSE; 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); } /* * Lookup for a vport within 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_lport_get_pwwn(&vport->lport) == pwwn) return vport; } return NULL; } /* * Get OUI of the attached switch. * * Note : Use of this function should be avoided as much as possible. * This function should be used only if there is any requirement * to check for FOS version below 6.3. * To check if the attached fabric is a brocade fabric, use * bfa_lps_is_brcd_fabric() which works for FOS versions 6.3 * or above only. */ u16 bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric) { wwn_t fab_nwwn; u8 *tmp; u16 oui; fab_nwwn = fabric->lps->pr_nwwn; tmp = (u8 *)&fab_nwwn; oui = (tmp[3] << 8) | tmp[4]; return oui; } /* * 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_ntoh3b(FC_FABRIC_PORT)) && (els_cmd->els_code == FC_ELS_FLOGI) && (flogi->port_name == bfa_fcs_lport_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_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); return; } bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs)); bfa_fcs_lport_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_lport_uf_recv(&vport->lport, fchs, len); return; } } bfa_trc(fabric->fcs, els_cmd->els_code); bfa_fcs_lport_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_lport_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 = be16_to_cpu(flogi->csp.bbcred); fabric->lps->pr_bbscn = (be16_to_cpu(flogi->csp.rxsz) >> 12); 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_lport_cfg_s *pcfg = &fabric->bport.port_cfg; struct bfa_fcs_lport_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_hton3b(FC_FABRIC_PORT), n2n_port->reply_oxid, pcfg->pwwn, pcfg->nwwn, bfa_fcport_get_maxfrsize(bfa), bfa_fcport_get_rx_bbcredit(bfa), bfa_fcs_fabric_oper_bbscn(fabric)); bfa_fcxp_send(fcxp, NULL, fabric->vf_id, fabric->lps->bfa_tag, BFA_FALSE, FC_CLASS_3, reqlen, &fchs, bfa_fcs_fabric_flogiacc_comp, fabric, FC_MAX_PDUSZ, 0); } /* * 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); } /* * Send AEN notification */ static void bfa_fcs_fabric_aen_post(struct bfa_fcs_lport_s *port, enum bfa_port_aen_event event) { struct bfad_s *bfad = (struct bfad_s *)port->fabric->fcs->bfad; struct bfa_aen_entry_s *aen_entry; bfad_get_aen_entry(bfad, aen_entry); if (!aen_entry) return; aen_entry->aen_data.port.pwwn = bfa_fcs_lport_get_pwwn(port); aen_entry->aen_data.port.fwwn = bfa_fcs_lport_get_fabric_name(port); /* Send the AEN notification */ bfad_im_post_vendor_event(aen_entry, bfad, ++port->fcs->fcs_aen_seq, BFA_AEN_CAT_PORT, event); } /* * * @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) { struct bfad_s *bfad = (struct bfad_s *)fabric->fcs->bfad; char pwwn_ptr[BFA_STRING_32]; char fwwn_ptr[BFA_STRING_32]; 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; wwn2str(pwwn_ptr, bfa_fcs_lport_get_pwwn(&fabric->bport)); wwn2str(fwwn_ptr, bfa_fcs_lport_get_fabric_name(&fabric->bport)); BFA_LOG(KERN_WARNING, bfad, bfa_log_level, "Base port WWN = %s Fabric WWN = %s\n", pwwn_ptr, fwwn_ptr); bfa_fcs_fabric_aen_post(&fabric->bport, BFA_PORT_AEN_FABRIC_NAME_CHANGE); } } /* * Returns FCS vf structure for a given vf_id. * * param[in] vf_id - VF_ID * * return * If lookup succeeds, retuns fcs vf object, otherwise returns NULL */ bfa_fcs_vf_t * bfa_fcs_vf_lookup(struct bfa_fcs_s *fcs, u16 vf_id) { bfa_trc(fcs, vf_id); if (vf_id == FC_VF_ID_NULL) return &fcs->fabric; return NULL; } /* * Return the list of local logical ports present in the given VF. * * @param[in] vf vf for which logical ports are returned * @param[out] lpwwn returned logical port wwn list * @param[in,out] nlports in:size of lpwwn list; * out:total elements present, * actual elements returned is limited by the size */ void bfa_fcs_vf_get_ports(bfa_fcs_vf_t *vf, wwn_t lpwwn[], int *nlports) { struct list_head *qe; struct bfa_fcs_vport_s *vport; int i = 0; struct bfa_fcs_s *fcs; if (vf == NULL || lpwwn == NULL || *nlports == 0) return; fcs = vf->fcs; bfa_trc(fcs, vf->vf_id); bfa_trc(fcs, (uint32_t) *nlports); lpwwn[i++] = vf->bport.port_cfg.pwwn; list_for_each(qe, &vf->vport_q) { if (i >= *nlports) break; vport = (struct bfa_fcs_vport_s *) qe; lpwwn[i++] = vport->lport.port_cfg.pwwn; } bfa_trc(fcs, i); *nlports = i; } /* * BFA FCS PPORT ( physical port) */ static void bfa_fcs_port_event_handler(void *cbarg, enum bfa_port_linkstate event) { struct bfa_fcs_s *fcs = cbarg; bfa_trc(fcs, event); switch (event) { case BFA_PORT_LINKUP: bfa_fcs_fabric_link_up(&fcs->fabric); break; case BFA_PORT_LINKDOWN: bfa_fcs_fabric_link_down(&fcs->fabric); break; default: WARN_ON(1); } } void bfa_fcs_port_attach(struct bfa_fcs_s *fcs) { bfa_fcport_event_register(fcs->bfa, bfa_fcs_port_event_handler, fcs); } /* * BFA FCS UF ( Unsolicited Frames) */ /* * BFA callback for unsolicited frame receive handler. * * @param[in] cbarg callback arg for receive handler * @param[in] uf unsolicited frame descriptor * * @return None */ static void bfa_fcs_uf_recv(void *cbarg, struct bfa_uf_s *uf) { struct bfa_fcs_s *fcs = (struct bfa_fcs_s *) cbarg; struct fchs_s *fchs = bfa_uf_get_frmbuf(uf); u16 len = bfa_uf_get_frmlen(uf); struct fc_vft_s *vft; struct bfa_fcs_fabric_s *fabric; /* * check for VFT header */ if (fchs->routing == FC_RTG_EXT_HDR && fchs->cat_info == FC_CAT_VFT_HDR) { bfa_stats(fcs, uf.tagged); vft = bfa_uf_get_frmbuf(uf); if (fcs->port_vfid == vft->vf_id) fabric = &fcs->fabric; else fabric = bfa_fcs_vf_lookup(fcs, (u16) vft->vf_id); /* * drop frame if vfid is unknown */ if (!fabric) { WARN_ON(1); bfa_stats(fcs, uf.vfid_unknown); bfa_uf_free(uf); return; } /* * skip vft header */ fchs = (struct fchs_s *) (vft + 1); len -= sizeof(struct fc_vft_s); bfa_trc(fcs, vft->vf_id); } else { bfa_stats(fcs, uf.untagged); fabric = &fcs->fabric; } bfa_trc(fcs, ((u32 *) fchs)[0]); bfa_trc(fcs, ((u32 *) fchs)[1]); bfa_trc(fcs, ((u32 *) fchs)[2]); bfa_trc(fcs, ((u32 *) fchs)[3]); bfa_trc(fcs, ((u32 *) fchs)[4]); bfa_trc(fcs, ((u32 *) fchs)[5]); bfa_trc(fcs, len); bfa_fcs_fabric_uf_recv(fabric, fchs, len); bfa_uf_free(uf); } void bfa_fcs_uf_attach(struct bfa_fcs_s *fcs) { bfa_uf_recv_register(fcs->bfa, bfa_fcs_uf_recv, fcs); }