/* * 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. */ /** * rport.c Remote port implementation. */ #include #include #include "fcbuild.h" #include "fcs_vport.h" #include "fcs_lport.h" #include "fcs_rport.h" #include "fcs_fcpim.h" #include "fcs_fcptm.h" #include "fcs_trcmod.h" #include "fcs_fcxp.h" #include "fcs.h" #include #include BFA_TRC_FILE(FCS, RPORT); #define BFA_FCS_RPORT_MAX_RETRIES (5) /* In millisecs */ static u32 bfa_fcs_rport_del_timeout = BFA_FCS_RPORT_DEF_DEL_TIMEOUT * 1000; /* * forward declarations */ static struct bfa_fcs_rport_s *bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port, wwn_t pwwn, u32 rpid); static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi); static void bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport); static void bfa_fcs_rport_timeout(void *arg); static void bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_rport_plogi_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_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_rport_adisc_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_rport_send_gidpn(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_rport_gidpn_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_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced); static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg); static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u16 len); static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u8 reason_code, u8 reason_code_expl); static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u16 len); /** * fcs_rport_sm FCS rport state machine events */ enum rport_event { RPSM_EVENT_PLOGI_SEND = 1, /* new rport; start with PLOGI */ RPSM_EVENT_PLOGI_RCVD = 2, /* Inbound PLOGI from remote port */ RPSM_EVENT_PLOGI_COMP = 3, /* PLOGI completed to rport */ RPSM_EVENT_LOGO_RCVD = 4, /* LOGO from remote device */ RPSM_EVENT_LOGO_IMP = 5, /* implicit logo for SLER */ RPSM_EVENT_FCXP_SENT = 6, /* Frame from has been sent */ RPSM_EVENT_DELETE = 7, /* RPORT delete request */ RPSM_EVENT_SCN = 8, /* state change notification */ RPSM_EVENT_ACCEPTED = 9,/* Good response from remote device */ RPSM_EVENT_FAILED = 10, /* Request to rport failed. */ RPSM_EVENT_TIMEOUT = 11, /* Rport SM timeout event */ RPSM_EVENT_HCB_ONLINE = 12, /* BFA rport online callback */ RPSM_EVENT_HCB_OFFLINE = 13, /* BFA rport offline callback */ RPSM_EVENT_FC4_OFFLINE = 14, /* FC-4 offline complete */ RPSM_EVENT_ADDRESS_CHANGE = 15, /* Rport's PID has changed */ RPSM_EVENT_ADDRESS_DISC = 16 /* Need to Discover rport's PID */ }; static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport, enum rport_event event); static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport, enum rport_event event); static struct bfa_sm_table_s rport_sm_table[] = { {BFA_SM(bfa_fcs_rport_sm_uninit), BFA_RPORT_UNINIT}, {BFA_SM(bfa_fcs_rport_sm_plogi_sending), BFA_RPORT_PLOGI}, {BFA_SM(bfa_fcs_rport_sm_plogiacc_sending), BFA_RPORT_ONLINE}, {BFA_SM(bfa_fcs_rport_sm_plogi_retry), BFA_RPORT_PLOGI_RETRY}, {BFA_SM(bfa_fcs_rport_sm_plogi), BFA_RPORT_PLOGI}, {BFA_SM(bfa_fcs_rport_sm_hal_online), BFA_RPORT_ONLINE}, {BFA_SM(bfa_fcs_rport_sm_online), BFA_RPORT_ONLINE}, {BFA_SM(bfa_fcs_rport_sm_nsquery_sending), BFA_RPORT_NSQUERY}, {BFA_SM(bfa_fcs_rport_sm_nsquery), BFA_RPORT_NSQUERY}, {BFA_SM(bfa_fcs_rport_sm_adisc_sending), BFA_RPORT_ADISC}, {BFA_SM(bfa_fcs_rport_sm_adisc), BFA_RPORT_ADISC}, {BFA_SM(bfa_fcs_rport_sm_fc4_logorcv), BFA_RPORT_LOGORCV}, {BFA_SM(bfa_fcs_rport_sm_fc4_logosend), BFA_RPORT_LOGO}, {BFA_SM(bfa_fcs_rport_sm_fc4_offline), BFA_RPORT_OFFLINE}, {BFA_SM(bfa_fcs_rport_sm_hcb_offline), BFA_RPORT_OFFLINE}, {BFA_SM(bfa_fcs_rport_sm_hcb_logorcv), BFA_RPORT_LOGORCV}, {BFA_SM(bfa_fcs_rport_sm_hcb_logosend), BFA_RPORT_LOGO}, {BFA_SM(bfa_fcs_rport_sm_logo_sending), BFA_RPORT_LOGO}, {BFA_SM(bfa_fcs_rport_sm_offline), BFA_RPORT_OFFLINE}, {BFA_SM(bfa_fcs_rport_sm_nsdisc_sending), BFA_RPORT_NSDISC}, {BFA_SM(bfa_fcs_rport_sm_nsdisc_retry), BFA_RPORT_NSDISC}, {BFA_SM(bfa_fcs_rport_sm_nsdisc_sent), BFA_RPORT_NSDISC}, }; /** * Beginning state. */ static void bfa_fcs_rport_sm_uninit(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_PLOGI_SEND: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending); rport->plogi_retries = 0; bfa_fcs_rport_send_plogi(rport, NULL); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_fcs_rport_hal_online(rport); break; case RPSM_EVENT_ADDRESS_CHANGE: case RPSM_EVENT_ADDRESS_DISC: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; default: bfa_assert(0); } } /** * PLOGI is being sent. */ static void bfa_fcs_rport_sm_plogi_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_ADDRESS_CHANGE: bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_SCN: break; default: bfa_assert(0); } } /** * PLOGI is being sent. */ static void bfa_fcs_rport_sm_plogiacc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_fcs_rport_hal_online(rport); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_SCN: /** * Ignore, SCN is possibly online notification. */ break; case RPSM_EVENT_ADDRESS_CHANGE: bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_HCB_OFFLINE: /** * Ignore BFA callback, on a PLOGI receive we call bfa offline. */ break; default: bfa_assert(0); } } /** * PLOGI is sent. */ static void bfa_fcs_rport_sm_plogi_retry(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_SCN: bfa_timer_stop(&rport->timer); /* * !! fall through !! */ case RPSM_EVENT_TIMEOUT: rport->plogi_retries++; if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending); bfa_fcs_rport_send_plogi(rport, NULL); } else { rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); } break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_timer_stop(&rport->timer); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_LOGO_RCVD: break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_timer_stop(&rport->timer); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_ADDRESS_CHANGE: bfa_timer_stop(&rport->timer); bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_stop(&rport->timer); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_timer_stop(&rport->timer); bfa_fcs_rport_hal_online(rport); break; default: bfa_assert(0); } } /** * PLOGI is sent. */ static void bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_ACCEPTED: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); rport->plogi_retries = 0; bfa_fcs_rport_hal_online(rport); break; case RPSM_EVENT_LOGO_RCVD: bfa_fcs_rport_send_logo_acc(rport); bfa_fcxp_discard(rport->fcxp); /* * !! fall through !! */ case RPSM_EVENT_FAILED: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_retry); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, BFA_FCS_RETRY_TIMEOUT); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_discard(rport->fcxp); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_ADDRESS_CHANGE: bfa_fcxp_discard(rport->fcxp); bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_SCN: /** * Ignore SCN - wait for PLOGI response. */ break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_hal_online(rport); break; default: bfa_assert(0); } } /** * PLOGI is complete. Awaiting BFA rport online callback. FC-4s * are offline. */ static void bfa_fcs_rport_sm_hal_online(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_HCB_ONLINE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_online); bfa_fcs_rport_online_action(rport); break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv); bfa_rport_offline(rport->bfa_rport); break; case RPSM_EVENT_LOGO_IMP: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline); bfa_rport_offline(rport->bfa_rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_rport_offline(rport->bfa_rport); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend); bfa_rport_offline(rport->bfa_rport); break; case RPSM_EVENT_SCN: /** * @todo * Ignore SCN - PLOGI just completed, FC-4 login should detect * device failures. */ break; default: bfa_assert(0); } } /** * Rport is ONLINE. FC-4s active. */ static void bfa_fcs_rport_sm_online(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_SCN: /** * Pause FC-4 activity till rport is authenticated. * In switched fabrics, check presence of device in nameserver * first. */ bfa_fcs_rport_fc4_pause(rport); if (bfa_fcs_fabric_is_switched(rport->port->fabric)) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); } else { bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending); bfa_fcs_rport_send_adisc(rport, NULL); } break; case RPSM_EVENT_PLOGI_RCVD: case RPSM_EVENT_LOGO_IMP: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_PLOGI_COMP: break; default: bfa_assert(0); } } /** * An SCN event is received in ONLINE state. NS query is being sent * prior to ADISC authentication with rport. FC-4s are paused. */ static void bfa_fcs_rport_sm_nsquery_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_SCN: /** * ignore SCN, wait for response to query itself */ break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_PLOGI_RCVD: case RPSM_EVENT_ADDRESS_CHANGE: case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; default: bfa_assert(0); } } /** * An SCN event is received in ONLINE state. NS query is sent to rport. * FC-4s are paused. */ static void bfa_fcs_rport_sm_nsquery(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_ACCEPTED: bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc_sending); bfa_fcs_rport_send_adisc(rport, NULL); break; case RPSM_EVENT_FAILED: rport->ns_retries++; if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsquery_sending); bfa_fcs_rport_send_gidpn(rport, NULL); } else { bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcs_rport_offline_action(rport); } break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_SCN: break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_PLOGI_COMP: case RPSM_EVENT_ADDRESS_CHANGE: case RPSM_EVENT_PLOGI_RCVD: case RPSM_EVENT_LOGO_IMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; default: bfa_assert(0); } } /** * An SCN event is received in ONLINE state. ADISC is being sent for * authenticating with rport. FC-4s are paused. */ static void bfa_fcs_rport_sm_adisc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_adisc); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_LOGO_IMP: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_SCN: break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_offline_action(rport); break; default: bfa_assert(0); } } /** * An SCN event is received in ONLINE state. ADISC is to rport. * FC-4s are paused. */ static void bfa_fcs_rport_sm_adisc(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_ACCEPTED: bfa_sm_set_state(rport, bfa_fcs_rport_sm_online); bfa_fcs_rport_fc4_resume(rport); break; case RPSM_EVENT_PLOGI_RCVD: /** * Too complex to cleanup FC-4 & rport and then acc to PLOGI. * At least go offline when a PLOGI is received. */ bfa_fcxp_discard(rport->fcxp); /* * !!! fall through !!! */ case RPSM_EVENT_FAILED: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_SCN: /** * already processing RSCN */ break; case RPSM_EVENT_LOGO_IMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_offline_action(rport); break; default: bfa_assert(0); } } /** * Rport has sent LOGO. Awaiting FC-4 offline completion callback. */ static void bfa_fcs_rport_sm_fc4_logorcv(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FC4_OFFLINE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logorcv); bfa_rport_offline(rport->bfa_rport); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); break; case RPSM_EVENT_LOGO_RCVD: case RPSM_EVENT_ADDRESS_CHANGE: break; default: bfa_assert(0); } } /** * LOGO needs to be sent to rport. Awaiting FC-4 offline completion * callback. */ static void bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FC4_OFFLINE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend); bfa_rport_offline(rport->bfa_rport); break; default: bfa_assert(0); } } /** * Rport is going offline. Awaiting FC-4 offline completion callback. */ static void bfa_fcs_rport_sm_fc4_offline(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FC4_OFFLINE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline); bfa_rport_offline(rport->bfa_rport); break; case RPSM_EVENT_SCN: case RPSM_EVENT_LOGO_IMP: case RPSM_EVENT_LOGO_RCVD: case RPSM_EVENT_ADDRESS_CHANGE: /** * rport is already going offline. * SCN - ignore and wait till transitioning to offline state */ break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend); break; default: bfa_assert(0); } } /** * Rport is offline. FC-4s are offline. Awaiting BFA rport offline * callback. */ static void bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_HCB_OFFLINE: case RPSM_EVENT_ADDRESS_CHANGE: if (bfa_fcs_port_is_online(rport->port)) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); } else { rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); } break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_SCN: case RPSM_EVENT_LOGO_RCVD: /** * Ignore, already offline. */ break; default: bfa_assert(0); } } /** * Rport is offline. FC-4s are offline. Awaiting BFA rport offline * callback to send LOGO accept. */ static void bfa_fcs_rport_sm_hcb_logorcv(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_HCB_OFFLINE: case RPSM_EVENT_ADDRESS_CHANGE: if (rport->pid) bfa_fcs_rport_send_logo_acc(rport); /* * If the lport is online and if the rport is not a well known * address port, we try to re-discover the r-port. */ if (bfa_fcs_port_is_online(rport->port) && (!BFA_FCS_PID_IS_WKA(rport->pid))) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); } else { /* * if it is not a well known address, reset the pid to * */ if (!BFA_FCS_PID_IS_WKA(rport->pid)) rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); } break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_logosend); break; case RPSM_EVENT_LOGO_IMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hcb_offline); break; case RPSM_EVENT_LOGO_RCVD: /** * Ignore - already processing a LOGO. */ break; default: bfa_assert(0); } } /** * Rport is being deleted. FC-4s are offline. Awaiting BFA rport offline * callback to send LOGO. */ static void bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_HCB_OFFLINE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_logo_sending); bfa_fcs_rport_send_logo(rport, NULL); break; case RPSM_EVENT_LOGO_RCVD: case RPSM_EVENT_ADDRESS_CHANGE: break; default: bfa_assert(0); } } /** * Rport is being deleted. FC-4s are offline. LOGO is being sent. */ static void bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: /* * Once LOGO is sent, we donot wait for the response */ bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_SCN: case RPSM_EVENT_ADDRESS_CHANGE: break; case RPSM_EVENT_LOGO_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_free(rport); break; default: bfa_assert(0); } } /** * Rport is offline. FC-4s are offline. BFA rport is offline. * Timer active to delete stale rport. */ static void bfa_fcs_rport_sm_offline(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_TIMEOUT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_SCN: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); bfa_timer_stop(&rport->timer); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_timer_stop(&rport->timer); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_timer_stop(&rport->timer); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_LOGO_RCVD: case RPSM_EVENT_LOGO_IMP: break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_timer_stop(&rport->timer); bfa_fcs_rport_hal_online(rport); break; case RPSM_EVENT_PLOGI_SEND: bfa_timer_stop(&rport->timer); bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending); rport->plogi_retries = 0; bfa_fcs_rport_send_plogi(rport, NULL); break; default: bfa_assert(0); } } /** * Rport address has changed. Nameserver discovery request is being sent. */ static void bfa_fcs_rport_sm_nsdisc_sending(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_FCXP_SENT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sent); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_SCN: case RPSM_EVENT_LOGO_RCVD: case RPSM_EVENT_PLOGI_SEND: break; case RPSM_EVENT_ADDRESS_CHANGE: rport->ns_retries = 0; /* reset the retry count */ break; case RPSM_EVENT_LOGO_IMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe); bfa_fcs_rport_hal_online(rport); break; default: bfa_assert(0); } } /** * Nameserver discovery failed. Waiting for timeout to retry. */ static void bfa_fcs_rport_sm_nsdisc_retry(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_TIMEOUT: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_SCN: case RPSM_EVENT_ADDRESS_CHANGE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); bfa_timer_stop(&rport->timer); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_timer_stop(&rport->timer); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_timer_stop(&rport->timer); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_stop(&rport->timer); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_LOGO_RCVD: bfa_fcs_rport_send_logo_acc(rport); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_timer_stop(&rport->timer); bfa_fcs_rport_hal_online(rport); break; default: bfa_assert(0); } } /** * Rport address has changed. Nameserver discovery request is sent. */ static void bfa_fcs_rport_sm_nsdisc_sent(struct bfa_fcs_rport_s *rport, enum rport_event event) { bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->pid); bfa_trc(rport->fcs, event); switch (event) { case RPSM_EVENT_ACCEPTED: case RPSM_EVENT_ADDRESS_CHANGE: if (rport->pid) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogi_sending); bfa_fcs_rport_send_plogi(rport, NULL); } else { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); rport->ns_retries = 0; bfa_fcs_rport_send_gidpn(rport, NULL); } break; case RPSM_EVENT_FAILED: rport->ns_retries++; if (rport->ns_retries < BFA_FCS_RPORT_MAX_RETRIES) { bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending); bfa_fcs_rport_send_gidpn(rport, NULL); } else { rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); }; break; case RPSM_EVENT_DELETE: bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_free(rport); break; case RPSM_EVENT_PLOGI_RCVD: bfa_sm_set_state(rport, bfa_fcs_rport_sm_plogiacc_sending); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_send_plogiacc(rport, NULL); break; case RPSM_EVENT_LOGO_IMP: rport->pid = 0; bfa_sm_set_state(rport, bfa_fcs_rport_sm_offline); bfa_fcxp_discard(rport->fcxp); bfa_timer_start(rport->fcs->bfa, &rport->timer, bfa_fcs_rport_timeout, rport, bfa_fcs_rport_del_timeout); break; case RPSM_EVENT_SCN: /** * ignore, wait for NS query response */ break; case RPSM_EVENT_LOGO_RCVD: /** * Not logged-in yet. Accept LOGO. */ bfa_fcs_rport_send_logo_acc(rport); break; case RPSM_EVENT_PLOGI_COMP: bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online); bfa_fcxp_discard(rport->fcxp); bfa_fcs_rport_hal_online(rport); break; default: bfa_assert(0); } } /** * fcs_rport_private FCS RPORT provate functions */ static void bfa_fcs_rport_send_plogi(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; int len; struct bfa_fcxp_s *fcxp; bfa_trc(rport->fcs, rport->pwwn); fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe, bfa_fcs_rport_send_plogi, rport); return; } rport->fcxp = fcxp; len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid, bfa_fcs_port_get_fcid(port), 0, port->port_cfg.pwwn, port->port_cfg.nwwn, bfa_pport_get_maxfrsize(port->fcs->bfa)); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, bfa_fcs_rport_plogi_response, (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV); rport->stats.plogis++; bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT); } static void bfa_fcs_rport_plogi_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_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; struct fc_logi_s *plogi_rsp; struct fc_ls_rjt_s *ls_rjt; struct bfa_fcs_rport_s *twin; struct list_head *qe; bfa_trc(rport->fcs, rport->pwwn); /* * Sanity Checks */ if (req_status != BFA_STATUS_OK) { bfa_trc(rport->fcs, req_status); rport->stats.plogi_failed++; bfa_sm_send_event(rport, RPSM_EVENT_FAILED); return; } plogi_rsp = (struct fc_logi_s *) BFA_FCXP_RSP_PLD(fcxp); /** * Check for failure first. */ if (plogi_rsp->els_cmd.els_code != FC_ELS_ACC) { ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp); bfa_trc(rport->fcs, ls_rjt->reason_code); bfa_trc(rport->fcs, ls_rjt->reason_code_expl); rport->stats.plogi_rejects++; bfa_sm_send_event(rport, RPSM_EVENT_FAILED); return; } /** * PLOGI is complete. Make sure this device is not one of the known * device with a new FC port address. */ list_for_each(qe, &rport->port->rport_q) { twin = (struct bfa_fcs_rport_s *)qe; if (twin == rport) continue; if (!rport->pwwn && (plogi_rsp->port_name == twin->pwwn)) { bfa_trc(rport->fcs, twin->pid); bfa_trc(rport->fcs, rport->pid); /* * Update plogi stats in twin */ twin->stats.plogis += rport->stats.plogis; twin->stats.plogi_rejects += rport->stats.plogi_rejects; twin->stats.plogi_timeouts += rport->stats.plogi_timeouts; twin->stats.plogi_failed += rport->stats.plogi_failed; twin->stats.plogi_rcvd += rport->stats.plogi_rcvd; twin->stats.plogi_accs++; bfa_fcs_rport_delete(rport); bfa_fcs_rport_update(twin, plogi_rsp); twin->pid = rsp_fchs->s_id; bfa_sm_send_event(twin, RPSM_EVENT_PLOGI_COMP); return; } } /** * Normal login path -- no evil twins. */ rport->stats.plogi_accs++; bfa_fcs_rport_update(rport, plogi_rsp); bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED); } static void bfa_fcs_rport_send_plogiacc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; int len; struct bfa_fcxp_s *fcxp; bfa_trc(rport->fcs, rport->pwwn); bfa_trc(rport->fcs, rport->reply_oxid); fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe, bfa_fcs_rport_send_plogiacc, rport); return; } rport->fcxp = fcxp; len = fc_plogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid, bfa_fcs_port_get_fcid(port), rport->reply_oxid, port->port_cfg.pwwn, port->port_cfg.nwwn, bfa_pport_get_maxfrsize(port->fcs->bfa)); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT); } static void bfa_fcs_rport_send_adisc(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; int len; struct bfa_fcxp_s *fcxp; bfa_trc(rport->fcs, rport->pwwn); fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe, bfa_fcs_rport_send_adisc, rport); return; } rport->fcxp = fcxp; len = fc_adisc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid, bfa_fcs_port_get_fcid(port), 0, port->port_cfg.pwwn, port->port_cfg.nwwn); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, bfa_fcs_rport_adisc_response, rport, FC_MAX_PDUSZ, FC_RA_TOV); rport->stats.adisc_sent++; bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT); } static void bfa_fcs_rport_adisc_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_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; void *pld = bfa_fcxp_get_rspbuf(fcxp); struct fc_ls_rjt_s *ls_rjt; if (req_status != BFA_STATUS_OK) { bfa_trc(rport->fcs, req_status); rport->stats.adisc_failed++; bfa_sm_send_event(rport, RPSM_EVENT_FAILED); return; } if (fc_adisc_rsp_parse((struct fc_adisc_s *)pld, rsp_len, rport->pwwn, rport->nwwn) == FC_PARSE_OK) { rport->stats.adisc_accs++; bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED); return; } rport->stats.adisc_rejects++; ls_rjt = pld; bfa_trc(rport->fcs, ls_rjt->els_cmd.els_code); bfa_trc(rport->fcs, ls_rjt->reason_code); bfa_trc(rport->fcs, ls_rjt->reason_code_expl); bfa_sm_send_event(rport, RPSM_EVENT_FAILED); } static void bfa_fcs_rport_send_gidpn(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; struct bfa_fcxp_s *fcxp; int len; bfa_trc(rport->fcs, rport->pid); fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe, bfa_fcs_rport_send_gidpn, rport); return; } rport->fcxp = fcxp; len = fc_gidpn_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), bfa_fcs_port_get_fcid(port), 0, rport->pwwn); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, bfa_fcs_rport_gidpn_response, (void *)rport, FC_MAX_PDUSZ, FC_RA_TOV); bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT); } static void bfa_fcs_rport_gidpn_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_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; struct bfa_fcs_rport_s *twin; struct list_head *qe; struct ct_hdr_s *cthdr; struct fcgs_gidpn_resp_s *gidpn_rsp; bfa_trc(rport->fcs, rport->pwwn); cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp); cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code); if (cthdr->cmd_rsp_code == CT_RSP_ACCEPT) { /* * Check if the pid is the same as before. */ gidpn_rsp = (struct fcgs_gidpn_resp_s *) (cthdr + 1); if (gidpn_rsp->dap == rport->pid) { /* * Device is online */ bfa_sm_send_event(rport, RPSM_EVENT_ACCEPTED); } else { /* * Device's PID has changed. We need to cleanup and * re-login. If there is another device with the the * newly discovered pid, send an scn notice so that its * new pid can be discovered. */ list_for_each(qe, &rport->port->rport_q) { twin = (struct bfa_fcs_rport_s *)qe; if (twin == rport) continue; if (gidpn_rsp->dap == twin->pid) { bfa_trc(rport->fcs, twin->pid); bfa_trc(rport->fcs, rport->pid); twin->pid = 0; bfa_sm_send_event(twin, RPSM_EVENT_ADDRESS_CHANGE); } } rport->pid = gidpn_rsp->dap; bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_CHANGE); } return; } /* * Reject Response */ switch (cthdr->reason_code) { case CT_RSN_LOGICAL_BUSY: /* * Need to retry */ bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT); break; case CT_RSN_UNABLE_TO_PERF: /* * device doesn't exist : Start timer to cleanup this later. */ bfa_sm_send_event(rport, RPSM_EVENT_FAILED); break; default: bfa_sm_send_event(rport, RPSM_EVENT_FAILED); break; } } /** * Called to send a logout to the rport. */ static void bfa_fcs_rport_send_logo(void *rport_cbarg, struct bfa_fcxp_s *fcxp_alloced) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port; struct fchs_s fchs; struct bfa_fcxp_s *fcxp; u16 len; bfa_trc(rport->fcs, rport->pid); port = rport->port; fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) { bfa_fcxp_alloc_wait(port->fcs->bfa, &rport->fcxp_wqe, bfa_fcs_rport_send_logo, rport); return; } rport->fcxp = fcxp; len = fc_logo_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid, bfa_fcs_port_get_fcid(port), 0, bfa_fcs_port_get_pwwn(port)); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, rport, FC_MAX_PDUSZ, FC_ED_TOV); rport->stats.logos++; bfa_fcxp_discard(rport->fcxp); bfa_sm_send_event(rport, RPSM_EVENT_FCXP_SENT); } /** * Send ACC for a LOGO received. */ static void bfa_fcs_rport_send_logo_acc(void *rport_cbarg) { struct bfa_fcs_rport_s *rport = rport_cbarg; struct bfa_fcs_port_s *port; struct fchs_s fchs; struct bfa_fcxp_s *fcxp; u16 len; bfa_trc(rport->fcs, rport->pid); port = rport->port; fcxp = bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) return; rport->stats.logo_rcvd++; len = fc_logo_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rport->pid, bfa_fcs_port_get_fcid(port), rport->reply_oxid); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); } /** * This routine will be called by bfa_timer on timer timeouts. * * param[in] rport - pointer to bfa_fcs_port_ns_t. * param[out] rport_status - pointer to return vport status in * * return * void * * Special Considerations: * * note */ static void bfa_fcs_rport_timeout(void *arg) { struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)arg; rport->stats.plogi_timeouts++; bfa_sm_send_event(rport, RPSM_EVENT_TIMEOUT); } static void bfa_fcs_rport_process_prli(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u16 len) { struct bfa_fcxp_s *fcxp; struct fchs_s fchs; struct bfa_fcs_port_s *port = rport->port; struct fc_prli_s *prli; bfa_trc(port->fcs, rx_fchs->s_id); bfa_trc(port->fcs, rx_fchs->d_id); rport->stats.prli_rcvd++; if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) { /* * Target Mode : Let the fcptm handle it */ bfa_fcs_tin_rx_prli(rport->tin, rx_fchs, len); return; } /* * We are either in Initiator or ipfc Mode */ prli = (struct fc_prli_s *) (rx_fchs + 1); if (prli->parampage.servparams.initiator) { bfa_trc(rport->fcs, prli->parampage.type); rport->scsi_function = BFA_RPORT_INITIATOR; bfa_fcs_itnim_is_initiator(rport->itnim); } else { /* * @todo: PRLI from a target ? */ bfa_trc(port->fcs, rx_fchs->s_id); rport->scsi_function = BFA_RPORT_TARGET; } fcxp = bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) return; len = fc_prli_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, port->port_cfg.roles); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); } static void bfa_fcs_rport_process_rpsc(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u16 len) { struct bfa_fcxp_s *fcxp; struct fchs_s fchs; struct bfa_fcs_port_s *port = rport->port; struct fc_rpsc_speed_info_s speeds; struct bfa_pport_attr_s pport_attr; bfa_trc(port->fcs, rx_fchs->s_id); bfa_trc(port->fcs, rx_fchs->d_id); rport->stats.rpsc_rcvd++; speeds.port_speed_cap = RPSC_SPEED_CAP_1G | RPSC_SPEED_CAP_2G | RPSC_SPEED_CAP_4G | RPSC_SPEED_CAP_8G; /* * get curent speed from pport attributes from BFA */ bfa_pport_get_attr(port->fcs->bfa, &pport_attr); speeds.port_op_speed = fc_bfa_speed_to_rpsc_operspeed(pport_attr.speed); fcxp = bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) return; len = fc_rpsc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, &speeds); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); } static void bfa_fcs_rport_process_adisc(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u16 len) { struct bfa_fcxp_s *fcxp; struct fchs_s fchs; struct bfa_fcs_port_s *port = rport->port; struct fc_adisc_s *adisc; bfa_trc(port->fcs, rx_fchs->s_id); bfa_trc(port->fcs, rx_fchs->d_id); rport->stats.adisc_rcvd++; if (BFA_FCS_VPORT_IS_TARGET_MODE(port)) { /* * @todo : Target Mode handling */ bfa_trc(port->fcs, rx_fchs->d_id); bfa_assert(0); return; } adisc = (struct fc_adisc_s *) (rx_fchs + 1); /* * Accept if the itnim for this rport is online. Else reject the ADISC */ if (bfa_fcs_itnim_get_online_state(rport->itnim) == BFA_STATUS_OK) { fcxp = bfa_fcs_fcxp_alloc(port->fcs); if (!fcxp) return; len = fc_adisc_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, port->port_cfg.pwwn, port->port_cfg.nwwn); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); } else { rport->stats.adisc_rejected++; bfa_fcs_rport_send_ls_rjt(rport, rx_fchs, FC_LS_RJT_RSN_UNABLE_TO_PERF_CMD, FC_LS_RJT_EXP_LOGIN_REQUIRED); } } static void bfa_fcs_rport_hal_online(struct bfa_fcs_rport_s *rport) { struct bfa_fcs_port_s *port = rport->port; struct bfa_rport_info_s rport_info; rport_info.pid = rport->pid; rport_info.local_pid = port->pid; rport_info.lp_tag = port->lp_tag; rport_info.vf_id = port->fabric->vf_id; rport_info.vf_en = port->fabric->is_vf; rport_info.fc_class = rport->fc_cos; rport_info.cisc = rport->cisc; rport_info.max_frmsz = rport->maxfrsize; bfa_rport_online(rport->bfa_rport, &rport_info); } static void bfa_fcs_rport_fc4_pause(struct bfa_fcs_rport_s *rport) { if (bfa_fcs_port_is_initiator(rport->port)) bfa_fcs_itnim_pause(rport->itnim); if (bfa_fcs_port_is_target(rport->port)) bfa_fcs_tin_pause(rport->tin); } static void bfa_fcs_rport_fc4_resume(struct bfa_fcs_rport_s *rport) { if (bfa_fcs_port_is_initiator(rport->port)) bfa_fcs_itnim_resume(rport->itnim); if (bfa_fcs_port_is_target(rport->port)) bfa_fcs_tin_resume(rport->tin); } static struct bfa_fcs_rport_s * bfa_fcs_rport_alloc(struct bfa_fcs_port_s *port, wwn_t pwwn, u32 rpid) { struct bfa_fcs_s *fcs = port->fcs; struct bfa_fcs_rport_s *rport; struct bfad_rport_s *rport_drv; /** * allocate rport */ if (bfa_fcb_rport_alloc(fcs->bfad, &rport, &rport_drv) != BFA_STATUS_OK) { bfa_trc(fcs, rpid); return NULL; } /* * Initialize r-port */ rport->port = port; rport->fcs = fcs; rport->rp_drv = rport_drv; rport->pid = rpid; rport->pwwn = pwwn; /** * allocate BFA rport */ rport->bfa_rport = bfa_rport_create(port->fcs->bfa, rport); if (!rport->bfa_rport) { bfa_trc(fcs, rpid); kfree(rport_drv); return NULL; } /** * allocate FC-4s */ bfa_assert(bfa_fcs_port_is_initiator(port) ^ bfa_fcs_port_is_target(port)); if (bfa_fcs_port_is_initiator(port)) { rport->itnim = bfa_fcs_itnim_create(rport); if (!rport->itnim) { bfa_trc(fcs, rpid); bfa_rport_delete(rport->bfa_rport); kfree(rport_drv); return NULL; } } if (bfa_fcs_port_is_target(port)) { rport->tin = bfa_fcs_tin_create(rport); if (!rport->tin) { bfa_trc(fcs, rpid); bfa_rport_delete(rport->bfa_rport); kfree(rport_drv); return NULL; } } bfa_fcs_port_add_rport(port, rport); bfa_sm_set_state(rport, bfa_fcs_rport_sm_uninit); /* * Initialize the Rport Features(RPF) Sub Module */ if (!BFA_FCS_PID_IS_WKA(rport->pid)) bfa_fcs_rpf_init(rport); return rport; } static void bfa_fcs_rport_free(struct bfa_fcs_rport_s *rport) { struct bfa_fcs_port_s *port = rport->port; /** * - delete FC-4s * - delete BFA rport * - remove from queue of rports */ if (bfa_fcs_port_is_initiator(port)) bfa_fcs_itnim_delete(rport->itnim); if (bfa_fcs_port_is_target(port)) bfa_fcs_tin_delete(rport->tin); bfa_rport_delete(rport->bfa_rport); bfa_fcs_port_del_rport(port, rport); kfree(rport->rp_drv); } static void bfa_fcs_rport_aen_post(struct bfa_fcs_rport_s *rport, enum bfa_rport_aen_event event, struct bfa_rport_aen_data_s *data) { 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]; char *prio_str[] = { "unknown", "high", "medium", "low" }; wwn2str(lpwwn_ptr, lpwwn); wwn2str(rpwwn_ptr, rpwwn); switch (event) { case BFA_RPORT_AEN_ONLINE: bfa_log(logmod, BFA_AEN_RPORT_ONLINE, rpwwn_ptr, lpwwn_ptr); break; case BFA_RPORT_AEN_OFFLINE: bfa_log(logmod, BFA_AEN_RPORT_OFFLINE, rpwwn_ptr, lpwwn_ptr); break; case BFA_RPORT_AEN_DISCONNECT: bfa_log(logmod, BFA_AEN_RPORT_DISCONNECT, rpwwn_ptr, lpwwn_ptr); break; case BFA_RPORT_AEN_QOS_PRIO: aen_data.rport.priv.qos = data->priv.qos; bfa_log(logmod, BFA_AEN_RPORT_QOS_PRIO, prio_str[aen_data.rport.priv.qos.qos_priority], rpwwn_ptr, lpwwn_ptr); break; case BFA_RPORT_AEN_QOS_FLOWID: aen_data.rport.priv.qos = data->priv.qos; bfa_log(logmod, BFA_AEN_RPORT_QOS_FLOWID, aen_data.rport.priv.qos.qos_flow_id, rpwwn_ptr, lpwwn_ptr); break; default: break; } aen_data.rport.vf_id = rport->port->fabric->vf_id; aen_data.rport.ppwwn = bfa_fcs_port_get_pwwn(bfa_fcs_get_base_port(rport->fcs)); aen_data.rport.lpwwn = lpwwn; aen_data.rport.rpwwn = rpwwn; } static void bfa_fcs_rport_online_action(struct bfa_fcs_rport_s *rport) { struct bfa_fcs_port_s *port = rport->port; rport->stats.onlines++; if (bfa_fcs_port_is_initiator(port)) { bfa_fcs_itnim_rport_online(rport->itnim); if (!BFA_FCS_PID_IS_WKA(rport->pid)) bfa_fcs_rpf_rport_online(rport); }; if (bfa_fcs_port_is_target(port)) bfa_fcs_tin_rport_online(rport->tin); /* * Don't post events for well known addresses */ if (!BFA_FCS_PID_IS_WKA(rport->pid)) bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_ONLINE, NULL); } static void bfa_fcs_rport_offline_action(struct bfa_fcs_rport_s *rport) { struct bfa_fcs_port_s *port = rport->port; rport->stats.offlines++; /* * Don't post events for well known addresses */ if (!BFA_FCS_PID_IS_WKA(rport->pid)) { if (bfa_fcs_port_is_online(rport->port) == BFA_TRUE) { bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_DISCONNECT, NULL); } else { bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_OFFLINE, NULL); } } if (bfa_fcs_port_is_initiator(port)) { bfa_fcs_itnim_rport_offline(rport->itnim); if (!BFA_FCS_PID_IS_WKA(rport->pid)) bfa_fcs_rpf_rport_offline(rport); } if (bfa_fcs_port_is_target(port)) bfa_fcs_tin_rport_offline(rport->tin); } /** * Update rport parameters from PLOGI or PLOGI accept. */ static void bfa_fcs_rport_update(struct bfa_fcs_rport_s *rport, struct fc_logi_s *plogi) { struct bfa_fcs_port_s *port = rport->port; /** * - port name * - node name */ rport->pwwn = plogi->port_name; rport->nwwn = plogi->node_name; /** * - class of service */ rport->fc_cos = 0; if (plogi->class3.class_valid) rport->fc_cos = FC_CLASS_3; if (plogi->class2.class_valid) rport->fc_cos |= FC_CLASS_2; /** * - CISC * - MAX receive frame size */ rport->cisc = plogi->csp.cisc; rport->maxfrsize = bfa_os_ntohs(plogi->class3.rxsz); bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred)); bfa_trc(port->fcs, port->fabric->bb_credit); /** * Direct Attach P2P mode : * This is to handle a bug (233476) in IBM targets in Direct Attach * Mode. Basically, in FLOGI Accept the target would have erroneously * set the BB Credit to the value used in the FLOGI sent by the HBA. * It uses the correct value (its own BB credit) in PLOGI. */ if ((!bfa_fcs_fabric_is_switched(port->fabric)) && (bfa_os_ntohs(plogi->csp.bbcred) < port->fabric->bb_credit)) { bfa_trc(port->fcs, bfa_os_ntohs(plogi->csp.bbcred)); bfa_trc(port->fcs, port->fabric->bb_credit); port->fabric->bb_credit = bfa_os_ntohs(plogi->csp.bbcred); bfa_pport_set_tx_bbcredit(port->fcs->bfa, port->fabric->bb_credit); } } /** * Called to handle LOGO received from an existing remote port. */ static void bfa_fcs_rport_process_logo(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs) { rport->reply_oxid = fchs->ox_id; bfa_trc(rport->fcs, rport->reply_oxid); rport->stats.logo_rcvd++; bfa_sm_send_event(rport, RPSM_EVENT_LOGO_RCVD); } /** * fcs_rport_public FCS rport public interfaces */ /** * Called by bport/vport to create a remote port instance for a discovered * remote device. * * @param[in] port - base port or vport * @param[in] rpid - remote port ID * * @return None */ struct bfa_fcs_rport_s * bfa_fcs_rport_create(struct bfa_fcs_port_s *port, u32 rpid) { struct bfa_fcs_rport_s *rport; bfa_trc(port->fcs, rpid); rport = bfa_fcs_rport_alloc(port, WWN_NULL, rpid); if (!rport) return NULL; bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND); return rport; } /** * Called to create a rport for which only the wwn is known. * * @param[in] port - base port * @param[in] rpwwn - remote port wwn * * @return None */ struct bfa_fcs_rport_s * bfa_fcs_rport_create_by_wwn(struct bfa_fcs_port_s *port, wwn_t rpwwn) { struct bfa_fcs_rport_s *rport; bfa_trc(port->fcs, rpwwn); rport = bfa_fcs_rport_alloc(port, rpwwn, 0); if (!rport) return NULL; bfa_sm_send_event(rport, RPSM_EVENT_ADDRESS_DISC); return rport; } /** * Called by bport in private loop topology to indicate that a * rport has been discovered and plogi has been completed. * * @param[in] port - base port or vport * @param[in] rpid - remote port ID */ void bfa_fcs_rport_start(struct bfa_fcs_port_s *port, struct fchs_s *fchs, struct fc_logi_s *plogi) { struct bfa_fcs_rport_s *rport; rport = bfa_fcs_rport_alloc(port, WWN_NULL, fchs->s_id); if (!rport) return; bfa_fcs_rport_update(rport, plogi); bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_COMP); } /** * Called by bport/vport to handle PLOGI received from a new remote port. * If an existing rport does a plogi, it will be handled separately. */ void bfa_fcs_rport_plogi_create(struct bfa_fcs_port_s *port, struct fchs_s *fchs, struct fc_logi_s *plogi) { struct bfa_fcs_rport_s *rport; rport = bfa_fcs_rport_alloc(port, plogi->port_name, fchs->s_id); if (!rport) return; bfa_fcs_rport_update(rport, plogi); rport->reply_oxid = fchs->ox_id; bfa_trc(rport->fcs, rport->reply_oxid); rport->stats.plogi_rcvd++; bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD); } static int wwn_compare(wwn_t wwn1, wwn_t wwn2) { u8 *b1 = (u8 *) &wwn1; u8 *b2 = (u8 *) &wwn2; int i; for (i = 0; i < sizeof(wwn_t); i++) { if (b1[i] < b2[i]) return -1; if (b1[i] > b2[i]) return 1; } return 0; } /** * Called by bport/vport to handle PLOGI received from an existing * remote port. */ void bfa_fcs_rport_plogi(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, struct fc_logi_s *plogi) { /** * @todo Handle P2P and initiator-initiator. */ bfa_fcs_rport_update(rport, plogi); rport->reply_oxid = rx_fchs->ox_id; bfa_trc(rport->fcs, rport->reply_oxid); /** * In Switched fabric topology, * PLOGI to each other. If our pwwn is smaller, ignore it, * if it is not a well known address. * If the link topology is N2N, * this Plogi should be accepted. */ if ((wwn_compare(rport->port->port_cfg.pwwn, rport->pwwn) == -1) && (bfa_fcs_fabric_is_switched(rport->port->fabric)) && (!BFA_FCS_PID_IS_WKA(rport->pid))) { bfa_trc(rport->fcs, rport->pid); return; } rport->stats.plogi_rcvd++; bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_RCVD); } /** * Called by bport/vport to delete a remote port instance. * * Rport delete is called under the following conditions: * - vport is deleted * - vf is deleted * - explicit request from OS to delete rport (vmware) */ void bfa_fcs_rport_delete(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_DELETE); } /** * Called by bport/vport to when a target goes offline. * */ void bfa_fcs_rport_offline(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP); } /** * Called by bport in n2n when a target (attached port) becomes online. * */ void bfa_fcs_rport_online(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_PLOGI_SEND); } /** * Called by bport/vport to notify SCN for the remote port */ void bfa_fcs_rport_scn(struct bfa_fcs_rport_s *rport) { rport->stats.rscns++; bfa_sm_send_event(rport, RPSM_EVENT_SCN); } /** * Called by fcpim to notify that the ITN cleanup is done. */ void bfa_fcs_rport_itnim_ack(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE); } /** * Called by fcptm to notify that the ITN cleanup is done. */ void bfa_fcs_rport_tin_ack(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_FC4_OFFLINE); } /** * This routine BFA callback for bfa_rport_online() call. * * param[in] cb_arg - rport struct. * * return * void * * Special Considerations: * * note */ void bfa_cb_rport_online(void *cbarg) { struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; bfa_trc(rport->fcs, rport->pwwn); bfa_sm_send_event(rport, RPSM_EVENT_HCB_ONLINE); } /** * This routine BFA callback for bfa_rport_offline() call. * * param[in] rport - * * return * void * * Special Considerations: * * note */ void bfa_cb_rport_offline(void *cbarg) { struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; bfa_trc(rport->fcs, rport->pwwn); bfa_sm_send_event(rport, RPSM_EVENT_HCB_OFFLINE); } /** * This routine is a static BFA callback when there is a QoS flow_id * change notification * * @param[in] rport - * * @return void * * Special Considerations: * * @note */ void bfa_cb_rport_qos_scn_flowid(void *cbarg, struct bfa_rport_qos_attr_s old_qos_attr, struct bfa_rport_qos_attr_s new_qos_attr) { struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; struct bfa_rport_aen_data_s aen_data; bfa_trc(rport->fcs, rport->pwwn); aen_data.priv.qos = new_qos_attr; bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_FLOWID, &aen_data); } /** * This routine is a static BFA callback when there is a QoS priority * change notification * * @param[in] rport - * * @return void * * Special Considerations: * * @note */ void bfa_cb_rport_qos_scn_prio(void *cbarg, struct bfa_rport_qos_attr_s old_qos_attr, struct bfa_rport_qos_attr_s new_qos_attr) { struct bfa_fcs_rport_s *rport = (struct bfa_fcs_rport_s *)cbarg; struct bfa_rport_aen_data_s aen_data; bfa_trc(rport->fcs, rport->pwwn); aen_data.priv.qos = new_qos_attr; bfa_fcs_rport_aen_post(rport, BFA_RPORT_AEN_QOS_PRIO, &aen_data); } /** * Called to process any unsolicted frames from this remote port */ void bfa_fcs_rport_logo_imp(struct bfa_fcs_rport_s *rport) { bfa_sm_send_event(rport, RPSM_EVENT_LOGO_IMP); } /** * Called to process any unsolicted frames from this remote port */ void bfa_fcs_rport_uf_recv(struct bfa_fcs_rport_s *rport, struct fchs_s *fchs, u16 len) { struct bfa_fcs_port_s *port = rport->port; struct fc_els_cmd_s *els_cmd; bfa_trc(rport->fcs, fchs->s_id); bfa_trc(rport->fcs, fchs->d_id); bfa_trc(rport->fcs, fchs->type); if (fchs->type != FC_TYPE_ELS) return; els_cmd = (struct fc_els_cmd_s *) (fchs + 1); bfa_trc(rport->fcs, els_cmd->els_code); switch (els_cmd->els_code) { case FC_ELS_LOGO: bfa_fcs_rport_process_logo(rport, fchs); break; case FC_ELS_ADISC: bfa_fcs_rport_process_adisc(rport, fchs, len); break; case FC_ELS_PRLO: if (bfa_fcs_port_is_initiator(port)) bfa_fcs_fcpim_uf_recv(rport->itnim, fchs, len); if (bfa_fcs_port_is_target(port)) bfa_fcs_fcptm_uf_recv(rport->tin, fchs, len); break; case FC_ELS_PRLI: bfa_fcs_rport_process_prli(rport, fchs, len); break; case FC_ELS_RPSC: bfa_fcs_rport_process_rpsc(rport, fchs, len); break; default: bfa_fcs_rport_send_ls_rjt(rport, fchs, FC_LS_RJT_RSN_CMD_NOT_SUPP, FC_LS_RJT_EXP_NO_ADDL_INFO); break; } } /* * Send a LS reject */ static void bfa_fcs_rport_send_ls_rjt(struct bfa_fcs_rport_s *rport, struct fchs_s *rx_fchs, u8 reason_code, u8 reason_code_expl) { struct bfa_fcs_port_s *port = rport->port; struct fchs_s fchs; struct bfa_fcxp_s *fcxp; int len; bfa_trc(rport->fcs, rx_fchs->s_id); fcxp = bfa_fcs_fcxp_alloc(rport->fcs); if (!fcxp) return; len = fc_ls_rjt_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), rx_fchs->s_id, bfa_fcs_port_get_fcid(port), rx_fchs->ox_id, reason_code, reason_code_expl); bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE, FC_CLASS_3, len, &fchs, NULL, NULL, FC_MAX_PDUSZ, 0); } /** * Module initialization */ void bfa_fcs_rport_modinit(struct bfa_fcs_s *fcs) { } /** * Module cleanup */ void bfa_fcs_rport_modexit(struct bfa_fcs_s *fcs) { bfa_fcs_modexit_comp(fcs); } /** * Return state of rport. */ int bfa_fcs_rport_get_state(struct bfa_fcs_rport_s *rport) { return bfa_sm_to_state(rport_sm_table, rport->sm); } /** * Called by the Driver to set rport delete/ageout timeout * * param[in] rport timeout value in seconds. * * return None */ void bfa_fcs_rport_set_del_timeout(u8 rport_tmo) { /* * convert to Millisecs */ if (rport_tmo > 0) bfa_fcs_rport_del_timeout = rport_tmo * 1000; }