/**
* Offline state - awaiting ONLINE event from fabric SM.
*/
static void
bfa_fcs_vport_sm_offline(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
bfa_fcs_port_delete(&vport->lport);
break;
case BFA_FCS_VPORT_SM_ONLINE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
vport->fdisc_retries = 0;
bfa_fcs_vport_do_fdisc(vport);
break;
case BFA_FCS_VPORT_SM_OFFLINE:
/*
* This can happen if the vport couldn't be initialzied due
* the fact that the npiv was not enabled on the switch. In
* that case we will put the vport in offline state. However,
* the link can go down and cause the this event to be sent when
* we are already offline. Ignore it.
*/
break;
default:
bfa_assert(0);
}
}
/**
* LOGO is sent to fabric. Vport delete is in progress. Lport delete cleanup
* is done.
*/
static void
bfa_fcs_vport_sm_logo(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_OFFLINE:
bfa_lps_discard(vport->lps);
/*
* !!! fall through !!!
*/
case BFA_FCS_VPORT_SM_RSP_OK:
case BFA_FCS_VPORT_SM_RSP_ERROR:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
bfa_fcs_vport_free(vport);
break;
case BFA_FCS_VPORT_SM_DELETE:
break;
default:
bfa_assert(0);
}
}
/**
* FDISC attempt failed - a timer is active to retry FDISC.
*/
static void
bfa_fcs_vport_sm_fdisc_retry(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
bfa_timer_stop(&vport->timer);
bfa_fcs_port_delete(&vport->lport);
break;
case BFA_FCS_VPORT_SM_OFFLINE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
bfa_timer_stop(&vport->timer);
break;
case BFA_FCS_VPORT_SM_TIMEOUT:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
vport->vport_stats.fdisc_retries++;
vport->fdisc_retries++;
bfa_fcs_vport_do_fdisc(vport);
break;
default:
bfa_assert(0);
}
}
static void
bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_START:
if (bfa_fcs_fabric_is_online(__vport_fabric(vport))
&& bfa_fcs_fabric_npiv_capable(__vport_fabric(vport))) {
bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
bfa_fcs_vport_do_fdisc(vport);
} else {
vport->vport_stats.fab_no_npiv++;
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
}
break;
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
bfa_fcs_port_delete(&vport->lport);
break;
case BFA_FCS_VPORT_SM_ONLINE:
case BFA_FCS_VPORT_SM_OFFLINE:
break;
default:
bfa_assert(0);
}
}
/**
* FDISC Response
*/
void
bfa_cb_lps_fdisc_comp(void *bfad, void *uarg, bfa_status_t status)
{
struct bfa_fcs_vport_s *vport = uarg;
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), status);
switch (status) {
case BFA_STATUS_OK:
/*
* Initialiaze the V-Port fields
*/
__vport_fcid(vport) = bfa_lps_get_pid(vport->lps);
vport->vport_stats.fdisc_accepts++;
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_OK);
break;
case BFA_STATUS_INVALID_MAC:
/*
* Only for CNA
*/
vport->vport_stats.fdisc_acc_bad++;
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
break;
case BFA_STATUS_EPROTOCOL:
switch (bfa_lps_get_extstatus(vport->lps)) {
case BFA_EPROTO_BAD_ACCEPT:
vport->vport_stats.fdisc_acc_bad++;
break;
case BFA_EPROTO_UNKNOWN_RSP:
vport->vport_stats.fdisc_unknown_rsp++;
break;
default:
break;
}
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
break;
case BFA_STATUS_FABRIC_RJT:
vport->vport_stats.fdisc_rejects++;
bfa_fcs_vport_fdisc_rejected(vport);
break;
default:
vport->vport_stats.fdisc_rsp_err++;
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
}
}
/**
* Called to send a logout to the fabric. Used when a V-Port is
* deleted/stopped.
*/
static void
bfa_fcs_vport_do_logo(struct bfa_fcs_vport_s *vport)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
vport->vport_stats.logo_sent++;
bfa_lps_fdisclogo(vport->lps);
}
/**
* Error State.
* This state will be set when the Vport Creation fails due to errors like
* Dup WWN. In this state only operation allowed is a Vport Delete.
*/
static void
bfa_fcs_vport_sm_error(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_uninit);
bfa_fcs_vport_free(vport);
break;
default:
bfa_trc(__vport_fcs(vport), event);
}
}
/**
* Beginning state.
*/
static void
bfa_fcs_vport_sm_uninit(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_CREATE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_created);
bfa_fcs_fabric_addvport(__vport_fabric(vport), vport);
break;
default:
bfa_assert(0);
}
}
static void
bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport)
{
u8 lsrjt_rsn = bfa_lps_get_lsrjt_rsn(vport->lps);
u8 lsrjt_expl = bfa_lps_get_lsrjt_expl(vport->lps);
bfa_trc(__vport_fcs(vport), lsrjt_rsn);
bfa_trc(__vport_fcs(vport), lsrjt_expl);
/*
* For certain reason codes, we don't want to retry.
*/
switch (bfa_lps_get_lsrjt_expl(vport->lps)) {
case FC_LS_RJT_EXP_INV_PORT_NAME: /* by brocade */
case FC_LS_RJT_EXP_INVALID_NPORT_ID: /* by Cisco */
if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
else {
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_DUP_WWN);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_DUP_WWN);
}
break;
case FC_LS_RJT_EXP_INSUFF_RES:
/*
* This means max logins per port/switch setting on the
* switch was exceeded.
*/
if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
else {
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_FABRIC_MAX);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED);
}
break;
default:
if (vport->fdisc_retries == 0) /* Print only once */
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_UNKNOWN);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
}
}
/**
* FDISC is sent and awaiting reply from fabric.
*/
static void
bfa_fcs_vport_sm_fdisc(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
bfa_lps_discard(vport->lps);
bfa_fcs_vport_do_logo(vport);
break;
case BFA_FCS_VPORT_SM_OFFLINE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
bfa_lps_discard(vport->lps);
break;
case BFA_FCS_VPORT_SM_RSP_OK:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_online);
bfa_fcs_port_online(&vport->lport);
break;
case BFA_FCS_VPORT_SM_RSP_ERROR:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc_retry);
bfa_timer_start(__vport_bfa(vport), &vport->timer,
bfa_fcs_vport_timeout, vport,
BFA_FCS_RETRY_TIMEOUT);
break;
case BFA_FCS_VPORT_SM_RSP_FAILED:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
break;
case BFA_FCS_VPORT_SM_RSP_DUP_WWN:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_error);
break;
default:
bfa_assert(0);
}
}
static void
bfa_fcs_vport_fdisc_rejected(struct bfa_fcs_vport_s *vport)
{
u8 lsrjt_rsn = bfa_lps_get_lsrjt_rsn(vport->lps);
u8 lsrjt_expl = bfa_lps_get_lsrjt_expl(vport->lps);
bfa_trc(__vport_fcs(vport), lsrjt_rsn);
bfa_trc(__vport_fcs(vport), lsrjt_expl);
switch (bfa_lps_get_lsrjt_expl(vport->lps)) {
case FC_LS_RJT_EXP_INV_PORT_NAME:
case FC_LS_RJT_EXP_INVALID_NPORT_ID:
if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
else {
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_DUP_WWN);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_DUP_WWN);
}
break;
case FC_LS_RJT_EXP_INSUFF_RES:
if (vport->fdisc_retries < BFA_FCS_VPORT_MAX_RETRIES)
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
else {
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_FABRIC_MAX);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_FAILED);
}
break;
default:
if (vport->fdisc_retries == 0)
bfa_fcs_vport_aen_post(&vport->lport,
BFA_LPORT_AEN_NPIV_UNKNOWN);
bfa_sm_send_event(vport, BFA_FCS_VPORT_SM_RSP_ERROR);
}
}
/**
* Created state - a start event is required to start up the state machine.
*/
static void
bfa_fcs_vport_sm_created(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_START:
if (bfa_fcs_fabric_is_online(__vport_fabric(vport))
&& bfa_fcs_fabric_npiv_capable(__vport_fabric(vport))) {
bfa_sm_set_state(vport, bfa_fcs_vport_sm_fdisc);
bfa_fcs_vport_do_fdisc(vport);
} else {
/**
* Fabric is offline or not NPIV capable, stay in
* offline state.
*/
vport->vport_stats.fab_no_npiv++;
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
}
break;
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
bfa_fcs_port_delete(&vport->lport);
break;
case BFA_FCS_VPORT_SM_ONLINE:
case BFA_FCS_VPORT_SM_OFFLINE:
/**
* Ignore ONLINE/OFFLINE events from fabric till vport is started.
*/
break;
default:
bfa_assert(0);
}
}
/**
* Vport is online (FDISC is complete).
*/
static void
bfa_fcs_vport_sm_online(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_deleting);
bfa_fcs_port_delete(&vport->lport);
break;
case BFA_FCS_VPORT_SM_OFFLINE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_offline);
bfa_lps_discard(vport->lps);
bfa_fcs_port_offline(&vport->lport);
break;
default:
bfa_assert(0);
}
}
/**
* Vport is being deleted - awaiting lport delete completion to send
* LOGO to fabric.
*/
static void
bfa_fcs_vport_sm_deleting(struct bfa_fcs_vport_s *vport,
enum bfa_fcs_vport_event event)
{
bfa_trc(__vport_fcs(vport), __vport_pwwn(vport));
bfa_trc(__vport_fcs(vport), event);
switch (event) {
case BFA_FCS_VPORT_SM_DELETE:
break;
case BFA_FCS_VPORT_SM_DELCOMP:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_logo);
bfa_fcs_vport_do_logo(vport);
break;
case BFA_FCS_VPORT_SM_OFFLINE:
bfa_sm_set_state(vport, bfa_fcs_vport_sm_cleanup);
break;
default:
bfa_assert(0);
}
}