/* * 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. */ /** * fcpim.c - FCP initiator mode i-t nexus state machine */ #include #include #include "fcs_fcpim.h" #include "fcs_rport.h" #include "fcs_lport.h" #include "fcs_trcmod.h" #include "fcs_fcxp.h" #include "fcs.h" #include #include #include BFA_TRC_FILE(FCS, FCPIM); /* * forward declarations */ static void bfa_fcs_itnim_timeout(void *arg); static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim); static void bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t req_status, u32 rsp_len, u32 resid_len, struct fchs_s *rsp_fchs); static void bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim, enum bfa_itnim_aen_event event); /** * fcs_itnim_sm FCS itnim state machine events */ enum bfa_fcs_itnim_event { BFA_FCS_ITNIM_SM_ONLINE = 1, /* rport online event */ BFA_FCS_ITNIM_SM_OFFLINE = 2, /* rport offline */ BFA_FCS_ITNIM_SM_FRMSENT = 3, /* prli frame is sent */ BFA_FCS_ITNIM_SM_RSP_OK = 4, /* good response */ BFA_FCS_ITNIM_SM_RSP_ERROR = 5, /* error response */ BFA_FCS_ITNIM_SM_TIMEOUT = 6, /* delay timeout */ BFA_FCS_ITNIM_SM_HCB_OFFLINE = 7, /* BFA online callback */ BFA_FCS_ITNIM_SM_HCB_ONLINE = 8, /* BFA offline callback */ BFA_FCS_ITNIM_SM_INITIATOR = 9, /* rport is initiator */ BFA_FCS_ITNIM_SM_DELETE = 10, /* delete event from rport */ BFA_FCS_ITNIM_SM_PRLO = 11, /* delete event from rport */ }; static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event); static struct bfa_sm_table_s itnim_sm_table[] = { {BFA_SM(bfa_fcs_itnim_sm_offline), BFA_ITNIM_OFFLINE}, {BFA_SM(bfa_fcs_itnim_sm_prli_send), BFA_ITNIM_PRLI_SEND}, {BFA_SM(bfa_fcs_itnim_sm_prli), BFA_ITNIM_PRLI_SENT}, {BFA_SM(bfa_fcs_itnim_sm_prli_retry), BFA_ITNIM_PRLI_RETRY}, {BFA_SM(bfa_fcs_itnim_sm_hcb_online), BFA_ITNIM_HCB_ONLINE}, {BFA_SM(bfa_fcs_itnim_sm_online), BFA_ITNIM_ONLINE}, {BFA_SM(bfa_fcs_itnim_sm_hcb_offline), BFA_ITNIM_HCB_OFFLINE}, {BFA_SM(bfa_fcs_itnim_sm_initiator), BFA_ITNIM_INITIATIOR}, }; /** * fcs_itnim_sm FCS itnim state machine */ static void bfa_fcs_itnim_sm_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_ONLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send); itnim->prli_retries = 0; bfa_fcs_itnim_send_prli(itnim, NULL); break; case BFA_FCS_ITNIM_SM_OFFLINE: bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_INITIATOR: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_prli_send(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_FRMSENT: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli); break; case BFA_FCS_ITNIM_SM_INITIATOR: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator); bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe); break; case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcxp_walloc_cancel(itnim->fcs->bfa, &itnim->fcxp_wqe); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_RSP_OK: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_online); bfa_itnim_online(itnim->bfa_itnim, itnim->seq_rec); break; case BFA_FCS_ITNIM_SM_RSP_ERROR: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_retry); bfa_timer_start(itnim->fcs->bfa, &itnim->timer, bfa_fcs_itnim_timeout, itnim, BFA_FCS_RETRY_TIMEOUT); break; case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcxp_discard(itnim->fcxp); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_INITIATOR: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator); /* * dont discard fcxp. accept will reach same state */ break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcxp_discard(itnim->fcxp); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_TIMEOUT: if (itnim->prli_retries < BFA_FCS_RPORT_MAX_RETRIES) { itnim->prli_retries++; bfa_trc(itnim->fcs, itnim->prli_retries); bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send); bfa_fcs_itnim_send_prli(itnim, NULL); } else { /* invoke target offline */ bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_rport_logo_imp(itnim->rport); } break; case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_timer_stop(&itnim->timer); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_INITIATOR: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator); bfa_timer_stop(&itnim->timer); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_timer_stop(&itnim->timer); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_hcb_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_HCB_ONLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_online); bfa_fcb_itnim_online(itnim->itnim_drv); bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_ONLINE); break; case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_itnim_offline(itnim->bfa_itnim); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_online(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_hcb_offline); bfa_fcb_itnim_offline(itnim->itnim_drv); bfa_itnim_offline(itnim->bfa_itnim); if (bfa_fcs_port_is_online(itnim->rport->port) == BFA_TRUE) bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_DISCONNECT); else bfa_fcs_itnim_aen_post(itnim, BFA_ITNIM_AEN_OFFLINE); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } static void bfa_fcs_itnim_sm_hcb_offline(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_HCB_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } /* * This state is set when a discovered rport is also in intiator mode. * This ITN is marked as no_op and is not active and will not be truned into * online state. */ static void bfa_fcs_itnim_sm_initiator(struct bfa_fcs_itnim_s *itnim, enum bfa_fcs_itnim_event event) { bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_trc(itnim->fcs, event); switch (event) { case BFA_FCS_ITNIM_SM_OFFLINE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_rport_itnim_ack(itnim->rport); break; case BFA_FCS_ITNIM_SM_RSP_ERROR: case BFA_FCS_ITNIM_SM_ONLINE: case BFA_FCS_ITNIM_SM_INITIATOR: break; case BFA_FCS_ITNIM_SM_DELETE: bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); bfa_fcs_itnim_free(itnim); break; default: bfa_sm_fault(itnim->fcs, event); } } /** * itnim_private FCS ITNIM private interfaces */ static void bfa_fcs_itnim_aen_post(struct bfa_fcs_itnim_s *itnim, enum bfa_itnim_aen_event event) { struct bfa_fcs_rport_s *rport = itnim->rport; union bfa_aen_data_u aen_data; struct bfa_log_mod_s *logmod = rport->fcs->logm; wwn_t lpwwn = bfa_fcs_port_get_pwwn(rport->port); wwn_t rpwwn = rport->pwwn; char lpwwn_ptr[BFA_STRING_32]; char rpwwn_ptr[BFA_STRING_32]; /* * Don't post events for well known addresses */ if (BFA_FCS_PID_IS_WKA(rport->pid)) return; wwn2str(lpwwn_ptr, lpwwn); wwn2str(rpwwn_ptr, rpwwn); bfa_log(logmod, BFA_LOG_CREATE_ID(BFA_AEN_CAT_ITNIM, event), rpwwn_ptr, lpwwn_ptr); aen_data.itnim.vf_id = rport->port->fabric->vf_id; aen_data.itnim.ppwwn = bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(itnim->fcs)); aen_data.itnim.lpwwn = lpwwn; aen_data.itnim.rpwwn = rpwwn; } static void bfa_fcs_itnim_send_prli(void *itnim_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_itnim_s *itnim = itnim_cbarg; struct bfa_fcs_rport_s *rport = itnim->rport; struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; struct bfa_fcxp_s *fcxp; int len; bfa_trc(itnim->fcs, itnim->rport->pwwn); fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { itnim->stats.fcxp_alloc_wait++; bfa_fcxp_alloc_wait(port->fcs->bfa, &itnim->fcxp_wqe, bfa_fcs_itnim_send_prli, itnim); return; } itnim->fcxp = fcxp; len = fc_prli_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), itnim->rport->pid, bfa_fcs_port_get_fcid(port), 0); bfa_fcxp_send(fcxp, rport->bfa_rport, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, bfa_fcs_itnim_prli_response, (void *)itnim, FC_MAX_PDUSZ, FC_ELS_TOV); itnim->stats.prli_sent++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_FRMSENT); } static void bfa_fcs_itnim_prli_response(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg, bfa_status_t req_status, u32 rsp_len, u32 resid_len, struct fchs_s *rsp_fchs) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cbarg; struct fc_els_cmd_s *els_cmd; struct fc_prli_s *prli_resp; struct fc_ls_rjt_s *ls_rjt; struct fc_prli_params_s *sparams; bfa_trc(itnim->fcs, req_status); /* * Sanity Checks */ if (req_status != BFA_STATUS_OK) { itnim->stats.prli_rsp_err++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR); return; } els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp); if (els_cmd->els_code == FC_ELS_ACC) { prli_resp = (struct fc_prli_s *) els_cmd; if (fc_prli_rsp_parse(prli_resp, rsp_len) != FC_PARSE_OK) { bfa_trc(itnim->fcs, rsp_len); /* * Check if this r-port is also in Initiator mode. * If so, we need to set this ITN as a no-op. */ if (prli_resp->parampage.servparams.initiator) { bfa_trc(itnim->fcs, prli_resp->parampage.type); itnim->rport->scsi_function = BFA_RPORT_INITIATOR; itnim->stats.prli_rsp_acc++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR); return; } itnim->stats.prli_rsp_parse_err++; return; } itnim->rport->scsi_function = BFA_RPORT_TARGET; sparams = &prli_resp->parampage.servparams; itnim->seq_rec = sparams->retry; itnim->rec_support = sparams->rec_support; itnim->task_retry_id = sparams->task_retry_id; itnim->conf_comp = sparams->confirm; itnim->stats.prli_rsp_acc++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_OK); } else { ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp); bfa_trc(itnim->fcs, ls_rjt->reason_code); bfa_trc(itnim->fcs, ls_rjt->reason_code_expl); itnim->stats.prli_rsp_rjt++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_RSP_ERROR); } } static void bfa_fcs_itnim_timeout(void *arg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)arg; itnim->stats.timeout++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_TIMEOUT); } static void bfa_fcs_itnim_free(struct bfa_fcs_itnim_s *itnim) { bfa_itnim_delete(itnim->bfa_itnim); bfa_fcb_itnim_free(itnim->fcs->bfad, itnim->itnim_drv); } /** * itnim_public FCS ITNIM public interfaces */ /** * Called by rport when a new rport is created. * * @param[in] rport - remote port. */ struct bfa_fcs_itnim_s * bfa_fcs_itnim_create(struct bfa_fcs_rport_s *rport) { struct bfa_fcs_port_s *port = rport->port; struct bfa_fcs_itnim_s *itnim; struct bfad_itnim_s *itnim_drv; struct bfa_itnim_s *bfa_itnim; /* * call bfad to allocate the itnim */ bfa_fcb_itnim_alloc(port->fcs->bfad, &itnim, &itnim_drv); if (itnim == NULL) { bfa_trc(port->fcs, rport->pwwn); return NULL; } /* * Initialize itnim */ itnim->rport = rport; itnim->fcs = rport->fcs; itnim->itnim_drv = itnim_drv; /* * call BFA to create the itnim */ bfa_itnim = bfa_itnim_create(port->fcs->bfa, rport->bfa_rport, itnim); if (bfa_itnim == NULL) { bfa_trc(port->fcs, rport->pwwn); bfa_fcb_itnim_free(port->fcs->bfad, itnim_drv); bfa_assert(0); return NULL; } itnim->bfa_itnim = bfa_itnim; itnim->seq_rec = BFA_FALSE; itnim->rec_support = BFA_FALSE; itnim->conf_comp = BFA_FALSE; itnim->task_retry_id = BFA_FALSE; /* * Set State machine */ bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline); return itnim; } /** * Called by rport to delete the instance of FCPIM. * * @param[in] rport - remote port. */ void bfa_fcs_itnim_delete(struct bfa_fcs_itnim_s *itnim) { bfa_trc(itnim->fcs, itnim->rport->pid); bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_DELETE); } /** * Notification from rport that PLOGI is complete to initiate FC-4 session. */ void bfa_fcs_itnim_rport_online(struct bfa_fcs_itnim_s *itnim) { itnim->stats.onlines++; if (!BFA_FCS_PID_IS_WKA(itnim->rport->pid)) { bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_ONLINE); } else { /* * For well known addresses, we set the itnim to initiator * state */ itnim->stats.initiator++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR); } } /** * Called by rport to handle a remote device offline. */ void bfa_fcs_itnim_rport_offline(struct bfa_fcs_itnim_s *itnim) { itnim->stats.offlines++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_OFFLINE); } /** * Called by rport when remote port is known to be an initiator from * PRLI received. */ void bfa_fcs_itnim_is_initiator(struct bfa_fcs_itnim_s *itnim) { bfa_trc(itnim->fcs, itnim->rport->pid); itnim->stats.initiator++; bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_INITIATOR); } /** * Called by rport to check if the itnim is online. */ bfa_status_t bfa_fcs_itnim_get_online_state(struct bfa_fcs_itnim_s *itnim) { bfa_trc(itnim->fcs, itnim->rport->pid); switch (bfa_sm_to_state(itnim_sm_table, itnim->sm)) { case BFA_ITNIM_ONLINE: case BFA_ITNIM_INITIATIOR: return BFA_STATUS_OK; default: return BFA_STATUS_NO_FCPIM_NEXUS; } } /** * BFA completion callback for bfa_itnim_online(). */ void bfa_cb_itnim_online(void *cbarg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cbarg; bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_ONLINE); } /** * BFA completion callback for bfa_itnim_offline(). */ void bfa_cb_itnim_offline(void *cb_arg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg; bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_HCB_OFFLINE); } /** * Mark the beginning of PATH TOV handling. IO completion callbacks * are still pending. */ void bfa_cb_itnim_tov_begin(void *cb_arg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg; bfa_trc(itnim->fcs, itnim->rport->pwwn); } /** * Mark the end of PATH TOV handling. All pending IOs are already cleaned up. */ void bfa_cb_itnim_tov(void *cb_arg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg; bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_fcb_itnim_tov(itnim->itnim_drv); } /** * BFA notification to FCS/driver for second level error recovery. * * Atleast one I/O request has timedout and target is unresponsive to * repeated abort requests. Second level error recovery should be initiated * by starting implicit logout and recovery procedures. */ void bfa_cb_itnim_sler(void *cb_arg) { struct bfa_fcs_itnim_s *itnim = (struct bfa_fcs_itnim_s *)cb_arg; itnim->stats.sler++; bfa_trc(itnim->fcs, itnim->rport->pwwn); bfa_fcs_rport_logo_imp(itnim->rport); } struct bfa_fcs_itnim_s * bfa_fcs_itnim_lookup(struct bfa_fcs_port_s *port, wwn_t rpwwn) { struct bfa_fcs_rport_s *rport; rport = bfa_fcs_rport_lookup(port, rpwwn); if (!rport) return NULL; bfa_assert(rport->itnim != NULL); return rport->itnim; } bfa_status_t bfa_fcs_itnim_attr_get(struct bfa_fcs_port_s *port, wwn_t rpwwn, struct bfa_itnim_attr_s *attr) { struct bfa_fcs_itnim_s *itnim = NULL; itnim = bfa_fcs_itnim_lookup(port, rpwwn); if (itnim == NULL) return BFA_STATUS_NO_FCPIM_NEXUS; attr->state = bfa_sm_to_state(itnim_sm_table, itnim->sm); attr->retry = itnim->seq_rec; attr->rec_support = itnim->rec_support; attr->conf_comp = itnim->conf_comp; attr->task_retry_id = itnim->task_retry_id; bfa_os_memset(&attr->io_latency, 0, sizeof(struct bfa_itnim_latency_s)); return BFA_STATUS_OK; } bfa_status_t bfa_fcs_itnim_stats_get(struct bfa_fcs_port_s *port, wwn_t rpwwn, struct bfa_itnim_stats_s *stats) { struct bfa_fcs_itnim_s *itnim = NULL; bfa_assert(port != NULL); itnim = bfa_fcs_itnim_lookup(port, rpwwn); if (itnim == NULL) return BFA_STATUS_NO_FCPIM_NEXUS; bfa_os_memcpy(stats, &itnim->stats, sizeof(struct bfa_itnim_stats_s)); return BFA_STATUS_OK; } bfa_status_t bfa_fcs_itnim_stats_clear(struct bfa_fcs_port_s *port, wwn_t rpwwn) { struct bfa_fcs_itnim_s *itnim = NULL; bfa_assert(port != NULL); itnim = bfa_fcs_itnim_lookup(port, rpwwn); if (itnim == NULL) return BFA_STATUS_NO_FCPIM_NEXUS; bfa_os_memset(&itnim->stats, 0, sizeof(struct bfa_itnim_stats_s)); return BFA_STATUS_OK; } void bfa_fcs_fcpim_uf_recv(struct bfa_fcs_itnim_s *itnim, struct fchs_s *fchs, u16 len) { struct fc_els_cmd_s *els_cmd; bfa_trc(itnim->fcs, fchs->type); if (fchs->type != FC_TYPE_ELS) return; els_cmd = (struct fc_els_cmd_s *) (fchs + 1); bfa_trc(itnim->fcs, els_cmd->els_code); switch (els_cmd->els_code) { case FC_ELS_PRLO: /* bfa_sm_send_event(itnim, BFA_FCS_ITNIM_SM_PRLO); */ break; default: bfa_assert(0); } } void bfa_fcs_itnim_pause(struct bfa_fcs_itnim_s *itnim) { } void bfa_fcs_itnim_resume(struct bfa_fcs_itnim_s *itnim) { }