diff options
Diffstat (limited to 'drivers/scsi/bfa/rport.c')
| -rw-r--r-- | drivers/scsi/bfa/rport.c | 2618 |
1 files changed, 2618 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/rport.c b/drivers/scsi/bfa/rport.c new file mode 100644 index 0000000..9cf58bb --- /dev/null +++ b/drivers/scsi/bfa/rport.c @@ -0,0 +1,2618 @@ +/* + * 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 <bfa.h> +#include <bfa_svc.h> +#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 <fcb/bfa_fcb_rport.h> +#include <aen/bfa_aen_rport.h> + +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; +} |