/*
* An SCN event is received in ONLINE state. ADISC is to rport.
* FC-4s are paused.
*/
static void
bfa_fcs_rport_sm_adisc_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_ACCEPTED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_online);
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_hal_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_hal_offline_action(rport);
break;
case RPSM_EVENT_FAB_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_hal_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_hal_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/*
* 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_SCN_OFFLINE:
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_ADDRESS_CHANGE:
case RPSM_EVENT_FAB_SCN:
/* query the NS */
bfa_fcxp_walloc_cancel(rport->fcs->bfa, &rport->fcxp_wqe);
WARN_ON(!(bfa_fcport_get_topology(rport->port->fcs->bfa) !=
BFA_PORT_TOPOLOGY_LOOP));
bfa_sm_set_state(rport, bfa_fcs_rport_sm_nsdisc_sending);
rport->ns_retries = 0;
bfa_fcs_rport_send_nsdisc(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;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* IO is being cleaned up (implicit abort), waiting for completion from
* firmware.
*/
static void
bfa_ioim_sm_cleanup(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
{
bfa_trc(ioim->bfa, ioim->iotag);
bfa_trc(ioim->bfa, event);
switch (event) {
case BFA_IOIM_SM_COMP_GOOD:
case BFA_IOIM_SM_COMP:
case BFA_IOIM_SM_DONE:
case BFA_IOIM_SM_FREE:
break;
case BFA_IOIM_SM_ABORT:
/**
* IO is already being aborted implicitly
*/
ioim->io_cbfn = __bfa_cb_ioim_abort;
break;
case BFA_IOIM_SM_ABORT_DONE:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_ABORT_COMP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_COMP_UTAG:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_HWFAIL:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
break;
case BFA_IOIM_SM_CLEANUP:
/**
* IO can be in cleanup state already due to TM command. 2nd cleanup
* request comes from ITN offline event.
*/
break;
default:
bfa_sm_fault(ioim->bfa, event);
}
}
static void
bfa_fcs_port_ns_sm_rff_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event)
{
bfa_trc(ns->port->fcs, ns->port->port_cfg.pwwn);
bfa_trc(ns->port->fcs, event);
switch (event) {
case NSSM_EVENT_RSP_OK:
/*
* If min cfg mode is enabled, we donot initiate rport
* discovery with the fabric. Instead, we will retrieve the
* boot targets from HAL/FW.
*/
if (__fcs_min_cfg(ns->port->fcs)) {
bfa_fcs_port_ns_boot_target_disc(ns->port);
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online);
return;
}
/*
* If the port role is Initiator Mode issue NS query.
* If it is Target Mode, skip this and go to online.
*/
if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port)) {
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_gid_ft);
bfa_fcs_port_ns_send_gid_ft(ns, NULL);
} else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port)) {
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online);
}
/*
* kick off mgmt srvr state machine
*/
bfa_fcs_port_ms_online(ns->port);
break;
case NSSM_EVENT_RSP_ERROR:
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rff_id_retry);
ns->port->stats.ns_retries++;
bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ns->port), &ns->timer,
bfa_fcs_port_ns_timeout, ns,
BFA_FCS_RETRY_TIMEOUT);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_discard(ns->fcxp);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
/**
* IO is being aborted, waiting for completion from firmware.
*/
static void
bfa_ioim_sm_abort(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
{
bfa_trc(ioim->bfa, ioim->iotag);
bfa_trc(ioim->bfa, event);
switch (event) {
case BFA_IOIM_SM_COMP_GOOD:
case BFA_IOIM_SM_COMP:
case BFA_IOIM_SM_DONE:
case BFA_IOIM_SM_FREE:
break;
case BFA_IOIM_SM_ABORT_DONE:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_ABORT_COMP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_COMP_UTAG:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_CLEANUP:
bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE);
ioim->iosp->abort_explicit = BFA_FALSE;
if (bfa_ioim_send_abort(ioim))
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
else {
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
bfa_reqq_wait(ioim->bfa, ioim->itnim->reqq,
&ioim->iosp->reqq_wait);
}
break;
case BFA_IOIM_SM_HWFAIL:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
break;
default:
bfa_sm_fault(ioim->bfa, event);
}
}
/*
* 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_online_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_nsdisc(rport, NULL);
} else {
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_hal_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_hal_offline_action(rport);
break;
case RPSM_EVENT_FAB_SCN:
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcxp_discard(rport->fcxp);
bfa_fcs_rport_hal_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_hal_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
static void
bfa_fcport_sm_enabling_qwait(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_QRESUME:
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
bfa_fcport_send_enable(fcport);
break;
case BFA_FCPORT_SM_STOP:
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_ENABLE:
/**
* Already enable is in progress.
*/
break;
case BFA_FCPORT_SM_DISABLE:
/**
* Just send disable request to firmware when room becomes
* available in request queue.
*/
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/**
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_reqq_wcancel(&fcport->reqq_wait);
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcs_itnim_sm_prli(struct bfa_fcs_itnim_s *itnim,
enum bfa_fcs_itnim_event event)
{
bfa_trc(itnim->fcs, itnim->rport->pwwn);
bfa_trc(itnim->fcs, event);
switch (event) {
case BFA_FCS_ITNIM_SM_RSP_OK:
if (itnim->rport->scsi_function == BFA_RPORT_INITIATOR)
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
else
bfa_sm_set_state(itnim,
bfa_fcs_itnim_sm_hal_rport_online);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
break;
case BFA_FCS_ITNIM_SM_RSP_ERROR:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_retry);
bfa_timer_start(itnim->fcs->bfa, &itnim->timer,
bfa_fcs_itnim_timeout, itnim,
BFA_FCS_RETRY_TIMEOUT);
break;
case BFA_FCS_ITNIM_SM_RSP_NOT_SUPP:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
break;
case BFA_FCS_ITNIM_SM_OFFLINE:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
bfa_fcxp_discard(itnim->fcxp);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_OFFLINE);
break;
case BFA_FCS_ITNIM_SM_INITIATOR:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
bfa_fcxp_discard(itnim->fcxp);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
break;
case BFA_FCS_ITNIM_SM_DELETE:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
bfa_fcxp_discard(itnim->fcxp);
bfa_fcs_itnim_free(itnim);
break;
default:
bfa_sm_fault(itnim->fcs, event);
}
}
/**
* Active IO is being aborted, waiting for room in request CQ.
*/
static void
bfa_ioim_sm_abort_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
{
bfa_trc(ioim->bfa, ioim->iotag);
bfa_trc(ioim->bfa, event);
switch (event) {
case BFA_IOIM_SM_QRESUME:
bfa_sm_set_state(ioim, bfa_ioim_sm_abort);
bfa_ioim_send_abort(ioim);
break;
case BFA_IOIM_SM_CLEANUP:
bfa_assert(ioim->iosp->abort_explicit == BFA_TRUE);
ioim->iosp->abort_explicit = BFA_FALSE;
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup_qfull);
break;
case BFA_IOIM_SM_COMP_GOOD:
case BFA_IOIM_SM_COMP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_DONE:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_HWFAIL:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
break;
default:
bfa_sm_fault(ioim->bfa, event);
}
}
static void
bfa_fcport_sm_enabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_FWRSP:
case BFA_FCPORT_SM_LINKDOWN:
bfa_sm_set_state(fcport, bfa_fcport_sm_linkdown);
break;
case BFA_FCPORT_SM_LINKUP:
bfa_fcport_update_linkinfo(fcport);
bfa_sm_set_state(fcport, bfa_fcport_sm_linkup);
bfa_assert(fcport->event_cbfn);
bfa_fcport_callback(fcport, BFA_PPORT_LINKUP);
break;
case BFA_FCPORT_SM_ENABLE:
/**
* Already being enabled.
*/
break;
case BFA_FCPORT_SM_DISABLE:
if (bfa_fcport_send_disable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_disabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_disabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_DISABLE, 0, "Port Disable");
bfa_fcport_aen_post(fcport, BFA_PORT_AEN_DISABLE);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocdown);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcport_sm_disabling(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_FWRSP:
bfa_sm_set_state(fcport, bfa_fcport_sm_disabled);
break;
case BFA_FCPORT_SM_DISABLE:
/**
* Already being disabled.
*/
break;
case BFA_FCPORT_SM_ENABLE:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ENABLE);
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_LINKUP:
case BFA_FCPORT_SM_LINKDOWN:
/**
* Possible to get link events when doing back-to-back
* enable/disables.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
static void
bfa_fcs_port_ms_sm_plogi(struct bfa_fcs_port_ms_s *ms, enum port_ms_event event)
{
bfa_trc(ms->port->fcs, ms->port->port_cfg.pwwn);
bfa_trc(ms->port->fcs, event);
switch (event) {
case MSSM_EVENT_RSP_ERROR:
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_plogi_retry);
ms->port->stats.ms_retries++;
bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(ms->port), &ms->timer,
bfa_fcs_port_ms_timeout, ms,
BFA_FCS_RETRY_TIMEOUT);
break;
case MSSM_EVENT_RSP_OK:
/*
* since plogi is done, now invoke MS related sub-modules
*/
bfa_fcs_port_fdmi_online(ms);
/**
* if this is a Vport, go to online state.
*/
if (ms->port->vport) {
bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_online);
break;
}
/*
* For a base port we need to get the
* switch's IP address.
*/
bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_gmal_sending);
bfa_fcs_port_ms_send_gmal(ms, NULL);
break;
case MSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ms, bfa_fcs_port_ms_sm_offline);
bfa_fcxp_discard(ms->fcxp);
break;
default:
bfa_sm_fault(ms->port->fcs, event);
}
}
/*
* 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_FAB_SCN:
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_nsdisc(rport, NULL);
} else {
bfa_sm_set_state(rport,
bfa_fcs_rport_sm_adisc_online_sending);
bfa_fcs_rport_send_adisc(rport, NULL);
}
break;
case RPSM_EVENT_PLOGI_RCVD:
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_ADDRESS_CHANGE:
case RPSM_EVENT_SCN_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_hal_offline_action(rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcs_rport_hal_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcs_rport_hal_offline_action(rport);
break;
case RPSM_EVENT_SCN_ONLINE:
case RPSM_EVENT_PLOGI_COMP:
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/**
* Link state is up
*/
static void
bfa_fcport_ln_sm_up(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_dn_nf);
bfa_fcport_queue_cb(ln, BFA_PPORT_LINKDOWN);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
/**
* Active IO is being cleaned up, waiting for room in request CQ.
*/
static void
bfa_ioim_sm_cleanup_qfull(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
{
bfa_trc(ioim->bfa, ioim->iotag);
bfa_trc(ioim->bfa, event);
switch (event) {
case BFA_IOIM_SM_QRESUME:
bfa_sm_set_state(ioim, bfa_ioim_sm_cleanup);
bfa_ioim_send_abort(ioim);
break;
case BFA_IOIM_SM_ABORT:
/**
* IO is already being cleaned up implicitly
*/
ioim->io_cbfn = __bfa_cb_ioim_abort;
break;
case BFA_IOIM_SM_COMP_GOOD:
case BFA_IOIM_SM_COMP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_DONE:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb_free);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, ioim->io_cbfn, ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_HWFAIL:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_reqq_wcancel(&ioim->iosp->reqq_wait);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
break;
default:
bfa_sm_fault(ioim->bfa, event);
}
}
static void
bfa_fcs_port_fdmi_sm_rhba(struct bfa_fcs_port_fdmi_s *fdmi,
enum port_fdmi_event event)
{
struct bfa_fcs_port_s *port = fdmi->ms->port;
bfa_trc(port->fcs, port->port_cfg.pwwn);
bfa_trc(port->fcs, event);
switch (event) {
case FDMISM_EVENT_RSP_ERROR:
/*
* if max retries have not been reached, start timer for a
* delayed retry
*/
if (fdmi->retry_cnt++ < BFA_FCS_FDMI_CMD_MAX_RETRIES) {
bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_rhba_retry);
bfa_timer_start(BFA_FCS_GET_HAL_FROM_PORT(port),
&fdmi->timer, bfa_fcs_port_fdmi_timeout,
fdmi, BFA_FCS_RETRY_TIMEOUT);
} else {
/*
* set state to offline
*/
bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_offline);
}
break;
case FDMISM_EVENT_RSP_OK:
/*
* Initiate Register Port Attributes
*/
bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_sending_rpa);
fdmi->retry_cnt = 0;
bfa_fcs_port_fdmi_send_rpa(fdmi, NULL);
break;
case FDMISM_EVENT_PORT_OFFLINE:
bfa_fcxp_discard(fdmi->fcxp);
bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_offline);
break;
default:
bfa_sm_fault(port->fcs, event);
}
}
/*
* 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_hal_online_action(rport);
break;
case RPSM_EVENT_PLOGI_COMP:
break;
case RPSM_EVENT_PRLO_RCVD:
case RPSM_EVENT_LOGO_RCVD:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logorcv);
bfa_fcs_rport_fcs_offline_action(rport);
break;
case RPSM_EVENT_FAB_SCN:
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_ADDRESS_CHANGE:
case RPSM_EVENT_SCN_OFFLINE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_fcs_offline_action(rport);
break;
case RPSM_EVENT_PLOGI_RCVD:
rport->plogi_pending = BFA_TRUE;
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_offline);
bfa_fcs_rport_fcs_offline_action(rport);
break;
case RPSM_EVENT_DELETE:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_fc4_logosend);
bfa_fcs_rport_fcs_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
static void
bfa_fcs_rpf_sm_rpsc(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
struct bfa_fcs_rport_s *rport = rpf->rport;
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPFSM_EVENT_RPSC_COMP:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
/* Update speed info in f/w via BFA */
if (rpf->rpsc_speed != BFA_PPORT_SPEED_UNKNOWN)
bfa_rport_speed(rport->bfa_rport, rpf->rpsc_speed);
else if (rpf->assigned_speed != BFA_PPORT_SPEED_UNKNOWN)
bfa_rport_speed(rport->bfa_rport, rpf->assigned_speed);
break;
case RPFSM_EVENT_RPSC_FAIL:
/* RPSC not supported by rport */
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
break;
case RPFSM_EVENT_RPSC_ERROR:
/* need to retry...delayed a bit. */
if (rpf->rpsc_retries++ < BFA_FCS_RPF_RETRIES) {
bfa_timer_start(rport->fcs->bfa, &rpf->timer,
bfa_fcs_rpf_timeout, rpf,
BFA_FCS_RPF_RETRY_TIMEOUT);
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_rpsc_retry);
} else {
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_online);
}
break;
case RPFSM_EVENT_RPORT_OFFLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
bfa_fcxp_discard(rpf->fcxp);
rpf->rpsc_retries = 0;
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
/*
* 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_fcs_rport_hal_offline(rport);
break;
case RPSM_EVENT_SCN_ONLINE:
break;
case RPSM_EVENT_LOGO_RCVD:
/*
* Rport is going offline. Just ack the logo
*/
bfa_fcs_rport_send_logo_acc(rport);
break;
case RPSM_EVENT_PRLO_RCVD:
bfa_fcs_rport_send_prlo_acc(rport);
break;
case RPSM_EVENT_SCN_OFFLINE:
case RPSM_EVENT_HCB_ONLINE:
case RPSM_EVENT_FAB_SCN:
case RPSM_EVENT_LOGO_IMP:
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_sm_fault(rport->fcs, event);
}
}
static void
rspq_sm_stopped(struct bfa_msgq_rspq *rspq, enum rspq_event event)
{
switch (event) {
case RSPQ_E_START:
bfa_fsm_set_state(rspq, rspq_sm_init_wait);
break;
case RSPQ_E_STOP:
case RSPQ_E_FAIL:
/* No-op */
break;
default:
bfa_sm_fault(event);
}
}
static void
cmdq_sm_ready(struct bfa_msgq_cmdq *cmdq, enum cmdq_event event)
{
switch (event) {
case CMDQ_E_STOP:
case CMDQ_E_FAIL:
bfa_fsm_set_state(cmdq, cmdq_sm_stopped);
break;
case CMDQ_E_POST:
bfa_fsm_set_state(cmdq, cmdq_sm_dbell_wait);
break;
default:
bfa_sm_fault(event);
}
}
/*
* 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_online_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_online);
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_hal_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_hal_offline_action(rport);
break;
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_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_hal_offline_action(rport);
break;
case RPSM_EVENT_FAB_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_hal_offline_action(rport);
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
static void
rspq_sm_ready(struct bfa_msgq_rspq *rspq, enum rspq_event event)
{
switch (event) {
case RSPQ_E_STOP:
case RSPQ_E_FAIL:
bfa_fsm_set_state(rspq, rspq_sm_stopped);
break;
case RSPQ_E_RESP:
bfa_fsm_set_state(rspq, rspq_sm_dbell_wait);
break;
default:
bfa_sm_fault(event);
}
}
/**
* IO is waiting for SG pages.
*/
static void
bfa_ioim_sm_sgalloc(struct bfa_ioim_s *ioim, enum bfa_ioim_event event)
{
bfa_trc(ioim->bfa, ioim->iotag);
bfa_trc(ioim->bfa, event);
switch (event) {
case BFA_IOIM_SM_SGALLOCED:
if (!bfa_ioim_send_ioreq(ioim)) {
bfa_sm_set_state(ioim, bfa_ioim_sm_qfull);
break;
}
bfa_sm_set_state(ioim, bfa_ioim_sm_active);
break;
case BFA_IOIM_SM_CLEANUP:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
bfa_ioim_notify_cleanup(ioim);
break;
case BFA_IOIM_SM_ABORT:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_abort,
ioim);
break;
case BFA_IOIM_SM_HWFAIL:
bfa_sm_set_state(ioim, bfa_ioim_sm_hcb);
bfa_sgpg_wcancel(ioim->bfa, &ioim->iosp->sgpg_wqe);
list_del(&ioim->qe);
list_add_tail(&ioim->qe, &ioim->fcpim->ioim_comp_q);
bfa_cb_queue(ioim->bfa, &ioim->hcb_qe, __bfa_cb_ioim_failed,
ioim);
break;
default:
bfa_sm_fault(ioim->bfa, event);
}
}
static void
bfa_fcs_port_fdmi_sm_online(struct bfa_fcs_port_fdmi_s *fdmi,
enum port_fdmi_event event)
{
struct bfa_fcs_port_s *port = fdmi->ms->port;
bfa_trc(port->fcs, port->port_cfg.pwwn);
bfa_trc(port->fcs, event);
switch (event) {
case FDMISM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_offline);
break;
default:
bfa_sm_fault(port->fcs, event);
}
}
static void
bfa_fcs_itnim_sm_prli_retry(struct bfa_fcs_itnim_s *itnim,
enum bfa_fcs_itnim_event event)
{
bfa_trc(itnim->fcs, itnim->rport->pwwn);
bfa_trc(itnim->fcs, event);
switch (event) {
case BFA_FCS_ITNIM_SM_TIMEOUT:
if (itnim->prli_retries < BFA_FCS_RPORT_MAX_RETRIES) {
itnim->prli_retries++;
bfa_trc(itnim->fcs, itnim->prli_retries);
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_prli_send);
bfa_fcs_itnim_send_prli(itnim, NULL);
} else {
/* invoke target offline */
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_LOGO_IMP);
}
break;
case BFA_FCS_ITNIM_SM_OFFLINE:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
bfa_timer_stop(&itnim->timer);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_OFFLINE);
break;
case BFA_FCS_ITNIM_SM_INITIATOR:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_initiator);
bfa_timer_stop(&itnim->timer);
bfa_sm_send_event(itnim->rport, RPSM_EVENT_FC4_FCS_ONLINE);
break;
case BFA_FCS_ITNIM_SM_DELETE:
bfa_sm_set_state(itnim, bfa_fcs_itnim_sm_offline);
bfa_timer_stop(&itnim->timer);
bfa_fcs_itnim_free(itnim);
break;
default:
bfa_sm_fault(itnim->fcs, event);
}
}
/*
* ADISC to rport
* Already did offline actions
*/
static void
bfa_fcs_rport_sm_adisc_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_ACCEPTED:
bfa_sm_set_state(rport, bfa_fcs_rport_sm_hal_online);
bfa_fcs_rport_hal_online(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_FAILED:
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:
case RPSM_EVENT_SCN_OFFLINE:
case RPSM_EVENT_LOGO_IMP:
case RPSM_EVENT_LOGO_RCVD:
case RPSM_EVENT_PRLO_RCVD:
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;
default:
bfa_sm_fault(rport->fcs, event);
}
}
static void
bfa_fcport_sm_disabled(struct bfa_fcport_s *fcport,
enum bfa_fcport_sm_event event)
{
bfa_trc(fcport->bfa, event);
switch (event) {
case BFA_FCPORT_SM_START:
/**
* Ignore start event for a port that is disabled.
*/
break;
case BFA_FCPORT_SM_STOP:
bfa_sm_set_state(fcport, bfa_fcport_sm_stopped);
break;
case BFA_FCPORT_SM_ENABLE:
if (bfa_fcport_send_enable(fcport))
bfa_sm_set_state(fcport, bfa_fcport_sm_enabling);
else
bfa_sm_set_state(fcport,
bfa_fcport_sm_enabling_qwait);
bfa_plog_str(fcport->bfa->plog, BFA_PL_MID_HAL,
BFA_PL_EID_PORT_ENABLE, 0, "Port Enable");
bfa_fcport_aen_post(fcport, BFA_PORT_AEN_ENABLE);
break;
case BFA_FCPORT_SM_DISABLE:
/**
* Already disabled.
*/
break;
case BFA_FCPORT_SM_HWFAIL:
bfa_sm_set_state(fcport, bfa_fcport_sm_iocfail);
break;
default:
bfa_sm_fault(fcport->bfa, event);
}
}
/**
* Link state is waiting for up notification
*/
static void
bfa_fcport_ln_sm_up_nf(struct bfa_fcport_ln_s *ln,
enum bfa_fcport_ln_sm_event event)
{
bfa_trc(ln->fcport->bfa, event);
switch (event) {
case BFA_FCPORT_LN_SM_LINKDOWN:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up_dn_nf);
break;
case BFA_FCPORT_LN_SM_NOTIFICATION:
bfa_sm_set_state(ln, bfa_fcport_ln_sm_up);
break;
default:
bfa_sm_fault(ln->fcport->bfa, event);
}
}
static void
bfa_fcs_rpf_sm_online(struct bfa_fcs_rpf_s *rpf, enum rpf_event event)
{
struct bfa_fcs_rport_s *rport = rpf->rport;
bfa_trc(rport->fcs, rport->pwwn);
bfa_trc(rport->fcs, rport->pid);
bfa_trc(rport->fcs, event);
switch (event) {
case RPFSM_EVENT_RPORT_OFFLINE:
bfa_sm_set_state(rpf, bfa_fcs_rpf_sm_offline);
rpf->rpsc_retries = 0;
break;
default:
bfa_sm_fault(rport->fcs, event);
}
}
