/*
* 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.
*/
/**
* @page ns_sm_info VPORT NS State Machine
*
* @section ns_sm_interactions VPORT NS State Machine Interactions
*
* @section ns_sm VPORT NS State Machine
* img ns_sm.jpg
*/
#include <bfa.h>
#include <bfa_svc.h>
#include <bfa_iocfc.h>
#include "fcs_lport.h"
#include "fcs_rport.h"
#include "fcs_trcmod.h"
#include "fcs_fcxp.h"
#include "fcs.h"
#include "lport_priv.h"
BFA_TRC_FILE(FCS, NS);
/*
* forward declarations
*/
static void bfa_fcs_port_ns_send_plogi(void *ns_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_port_ns_send_rspn_id(void *ns_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_port_ns_send_rft_id(void *ns_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_port_ns_send_rff_id(void *ns_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_port_ns_send_gid_ft(void *ns_cbarg,
struct bfa_fcxp_s *fcxp_alloced);
static void bfa_fcs_port_ns_timeout(void *arg);
static void bfa_fcs_port_ns_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_port_ns_rspn_id_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_port_ns_rft_id_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_port_ns_rff_id_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_port_ns_gid_ft_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_port_ns_process_gidft_pids(struct bfa_fcs_port_s *port,
u32 *pid_buf,
u32 n_pids);
static void bfa_fcs_port_ns_boot_target_disc(struct bfa_fcs_port_s *port);
/**
* fcs_ns_sm FCS nameserver interface state machine
*/
/**
* VPort NS State Machine events
*/
enum vport_ns_event {
NSSM_EVENT_PORT_ONLINE = 1,
NSSM_EVENT_PORT_OFFLINE = 2,
NSSM_EVENT_PLOGI_SENT = 3,
NSSM_EVENT_RSP_OK = 4,
NSSM_EVENT_RSP_ERROR = 5,
NSSM_EVENT_TIMEOUT = 6,
NSSM_EVENT_NS_QUERY = 7,
NSSM_EVENT_RSPNID_SENT = 8,
NSSM_EVENT_RFTID_SENT = 9,
NSSM_EVENT_RFFID_SENT = 10,
NSSM_EVENT_GIDFT_SENT = 11,
};
static void bfa_fcs_port_ns_sm_offline(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_plogi_sending(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_plogi(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_plogi_retry(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_sending_rspn_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rspn_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rspn_id_retry(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_sending_rft_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rft_id_retry(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rft_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_sending_rff_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rff_id_retry(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_rff_id(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_sending_gid_ft(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_gid_ft(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_gid_ft_retry(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
static void bfa_fcs_port_ns_sm_online(struct bfa_fcs_port_ns_s *ns,
enum vport_ns_event event);
/**
* Start in offline state - awaiting linkup
*/
static void
bfa_fcs_port_ns_sm_offline(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_PORT_ONLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_sending);
bfa_fcs_port_ns_send_plogi(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_plogi_sending(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_PLOGI_SENT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
&ns->fcxp_wqe);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_plogi(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_ERROR:
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_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_RSP_OK:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rspn_id);
bfa_fcs_port_ns_send_rspn_id(ns, NULL);
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);
}
}
static void
bfa_fcs_port_ns_sm_plogi_retry(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_TIMEOUT:
/*
* Retry Timer Expired. Re-send
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_plogi_sending);
bfa_fcs_port_ns_send_plogi(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_timer_stop(&ns->timer);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_sending_rspn_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_RSPNID_SENT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rspn_id);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
&ns->fcxp_wqe);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_rspn_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_ERROR:
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rspn_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_RSP_OK:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rft_id);
bfa_fcs_port_ns_send_rft_id(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_fcxp_discard(ns->fcxp);
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_rspn_id_retry(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_TIMEOUT:
/*
* Retry Timer Expired. Re-send
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rspn_id);
bfa_fcs_port_ns_send_rspn_id(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_timer_stop(&ns->timer);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_sending_rft_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_RFTID_SENT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rft_id);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
&ns->fcxp_wqe);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_rft_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:
/*
* Now move to register FC4 Features
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rff_id);
bfa_fcs_port_ns_send_rff_id(ns, NULL);
break;
case NSSM_EVENT_RSP_ERROR:
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rft_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);
}
}
static void
bfa_fcs_port_ns_sm_rft_id_retry(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_TIMEOUT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rft_id);
bfa_fcs_port_ns_send_rft_id(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_timer_stop(&ns->timer);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_sending_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_RFFID_SENT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_rff_id);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
&ns->fcxp_wqe);
break;
default:
bfa_sm_fault(ns->port->fcs, 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);
}
}
static void
bfa_fcs_port_ns_sm_rff_id_retry(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_TIMEOUT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_rff_id);
bfa_fcs_port_ns_send_rff_id(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_timer_stop(&ns->timer);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_sending_gid_ft(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_GIDFT_SENT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_gid_ft);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_fcxp_walloc_cancel(BFA_FCS_GET_HAL_FROM_PORT(ns->port),
&ns->fcxp_wqe);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_gid_ft(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:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_online);
break;
case NSSM_EVENT_RSP_ERROR:
/*
* TBD: for certain reject codes, we don't need to retry
*/
/*
* Start timer for a delayed retry
*/
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_gid_ft_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);
}
}
static void
bfa_fcs_port_ns_sm_gid_ft_retry(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_TIMEOUT:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_sending_gid_ft);
bfa_fcs_port_ns_send_gid_ft(ns, NULL);
break;
case NSSM_EVENT_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
bfa_timer_stop(&ns->timer);
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
static void
bfa_fcs_port_ns_sm_online(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_PORT_OFFLINE:
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
break;
case NSSM_EVENT_NS_QUERY:
/*
* 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);
};
break;
default:
bfa_sm_fault(ns->port->fcs, event);
}
}
/**
* ns_pvt Nameserver local functions
*/
static void
bfa_fcs_port_ns_send_plogi(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_port_ns_s *ns = ns_cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
bfa_trc(port->fcs, port->pid);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
port->stats.ns_plogi_alloc_wait++;
bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
bfa_fcs_port_ns_send_plogi, ns);
return;
}
ns->fcxp = fcxp;
len = fc_plogi_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_os_hton3b(FC_NAME_SERVER),
bfa_fcs_port_get_fcid(port), 0,
port->port_cfg.pwwn, port->port_cfg.nwwn,
bfa_fcport_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_port_ns_plogi_response,
(void *)ns, FC_MAX_PDUSZ, FC_RA_TOV);
port->stats.ns_plogi_sent++;
bfa_sm_send_event(ns, NSSM_EVENT_PLOGI_SENT);
}
static void
bfa_fcs_port_ns_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_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg;
struct bfa_fcs_port_s *port = ns->port;
/* struct fc_logi_s *plogi_resp; */
struct fc_els_cmd_s *els_cmd;
struct fc_ls_rjt_s *ls_rjt;
bfa_trc(port->fcs, req_status);
bfa_trc(port->fcs, port->port_cfg.pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(port->fcs, req_status);
port->stats.ns_plogi_rsp_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
return;
}
els_cmd = (struct fc_els_cmd_s *) BFA_FCXP_RSP_PLD(fcxp);
switch (els_cmd->els_code) {
case FC_ELS_ACC:
if (rsp_len < sizeof(struct fc_logi_s)) {
bfa_trc(port->fcs, rsp_len);
port->stats.ns_plogi_acc_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
break;
}
port->stats.ns_plogi_accepts++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
break;
case FC_ELS_LS_RJT:
ls_rjt = (struct fc_ls_rjt_s *) BFA_FCXP_RSP_PLD(fcxp);
bfa_trc(port->fcs, ls_rjt->reason_code);
bfa_trc(port->fcs, ls_rjt->reason_code_expl);
port->stats.ns_rejects++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
break;
default:
port->stats.ns_plogi_unknown_rsp++;
bfa_trc(port->fcs, els_cmd->els_code);
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
}
/**
* Register the symbolic port name.
*/
static void
bfa_fcs_port_ns_send_rspn_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_port_ns_s *ns = ns_cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
u8 symbl[256];
u8 *psymbl = &symbl[0];
bfa_os_memset(symbl, 0, sizeof(symbl));
bfa_trc(port->fcs, port->port_cfg.pwwn);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
port->stats.ns_rspnid_alloc_wait++;
bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
bfa_fcs_port_ns_send_rspn_id, ns);
return;
}
ns->fcxp = fcxp;
/*
* for V-Port, form a Port Symbolic Name
*/
if (port->vport) {
/**For Vports,
* we append the vport's port symbolic name to that of the base port.
*/
strncpy((char *)psymbl,
(char *)
&(bfa_fcs_port_get_psym_name
(bfa_fcs_get_base_port(port->fcs))),
strlen((char *)
&bfa_fcs_port_get_psym_name(bfa_fcs_get_base_port
(port->fcs))));
/*
* Ensure we have a null terminating string.
*/
((char *)
psymbl)[strlen((char *)
&bfa_fcs_port_get_psym_name
(bfa_fcs_get_base_port(port->fcs)))] = 0;
strncat((char *)psymbl,
(char *)&(bfa_fcs_port_get_psym_name(port)),
strlen((char *)&bfa_fcs_port_get_psym_name(port)));
} else {
psymbl = (u8 *) &(bfa_fcs_port_get_psym_name(port));
}
len = fc_rspnid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_fcs_port_get_fcid(port), 0, psymbl);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rspn_id_response,
(void *)ns, FC_MAX_PDUSZ, FC_RA_TOV);
port->stats.ns_rspnid_sent++;
bfa_sm_send_event(ns, NSSM_EVENT_RSPNID_SENT);
}
static void
bfa_fcs_port_ns_rspn_id_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_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct ct_hdr_s *cthdr = NULL;
bfa_trc(port->fcs, port->port_cfg.pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(port->fcs, req_status);
port->stats.ns_rspnid_rsp_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
return;
}
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) {
port->stats.ns_rspnid_accepts++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
return;
}
port->stats.ns_rspnid_rejects++;
bfa_trc(port->fcs, cthdr->reason_code);
bfa_trc(port->fcs, cthdr->exp_code);
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
/**
* Register FC4-Types
* TBD, Need to retrieve this from the OS driver, in case IPFC is enabled ?
*/
static void
bfa_fcs_port_ns_send_rft_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_port_ns_s *ns = ns_cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
bfa_trc(port->fcs, port->port_cfg.pwwn);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
port->stats.ns_rftid_alloc_wait++;
bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
bfa_fcs_port_ns_send_rft_id, ns);
return;
}
ns->fcxp = fcxp;
len = fc_rftid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_fcs_port_get_fcid(port), 0,
port->port_cfg.roles);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rft_id_response,
(void *)ns, FC_MAX_PDUSZ, FC_RA_TOV);
port->stats.ns_rftid_sent++;
bfa_sm_send_event(ns, NSSM_EVENT_RFTID_SENT);
}
static void
bfa_fcs_port_ns_rft_id_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_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct ct_hdr_s *cthdr = NULL;
bfa_trc(port->fcs, port->port_cfg.pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(port->fcs, req_status);
port->stats.ns_rftid_rsp_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
return;
}
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) {
port->stats.ns_rftid_accepts++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
return;
}
port->stats.ns_rftid_rejects++;
bfa_trc(port->fcs, cthdr->reason_code);
bfa_trc(port->fcs, cthdr->exp_code);
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
/**
* Register FC4-Features : Should be done after RFT_ID
*/
static void
bfa_fcs_port_ns_send_rff_id(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_port_ns_s *ns = ns_cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
u8 fc4_ftrs = 0;
bfa_trc(port->fcs, port->port_cfg.pwwn);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
port->stats.ns_rffid_alloc_wait++;
bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
bfa_fcs_port_ns_send_rff_id, ns);
return;
}
ns->fcxp = fcxp;
if (BFA_FCS_VPORT_IS_INITIATOR_MODE(ns->port))
fc4_ftrs = FC_GS_FCP_FC4_FEATURE_INITIATOR;
else if (BFA_FCS_VPORT_IS_TARGET_MODE(ns->port))
fc4_ftrs = FC_GS_FCP_FC4_FEATURE_TARGET;
len = fc_rffid_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_fcs_port_get_fcid(port), 0, FC_TYPE_FCP,
fc4_ftrs);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_rff_id_response,
(void *)ns, FC_MAX_PDUSZ, FC_RA_TOV);
port->stats.ns_rffid_sent++;
bfa_sm_send_event(ns, NSSM_EVENT_RFFID_SENT);
}
static void
bfa_fcs_port_ns_rff_id_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_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct ct_hdr_s *cthdr = NULL;
bfa_trc(port->fcs, port->port_cfg.pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(port->fcs, req_status);
port->stats.ns_rffid_rsp_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
return;
}
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) {
port->stats.ns_rffid_accepts++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
return;
}
port->stats.ns_rffid_rejects++;
bfa_trc(port->fcs, cthdr->reason_code);
bfa_trc(port->fcs, cthdr->exp_code);
if (cthdr->reason_code == CT_RSN_NOT_SUPP) {
/*
* if this command is not supported, we don't retry
*/
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
} else {
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
}
/**
* Query Fabric for FC4-Types Devices.
*
* TBD : Need to use a local (FCS private) response buffer, since the response
* can be larger than 2K.
*/
static void
bfa_fcs_port_ns_send_gid_ft(void *ns_cbarg, struct bfa_fcxp_s *fcxp_alloced)
{
struct bfa_fcs_port_ns_s *ns = ns_cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct fchs_s fchs;
int len;
struct bfa_fcxp_s *fcxp;
bfa_trc(port->fcs, port->pid);
fcxp = fcxp_alloced ? fcxp_alloced : bfa_fcs_fcxp_alloc(port->fcs);
if (!fcxp) {
port->stats.ns_gidft_alloc_wait++;
bfa_fcxp_alloc_wait(port->fcs->bfa, &ns->fcxp_wqe,
bfa_fcs_port_ns_send_gid_ft, ns);
return;
}
ns->fcxp = fcxp;
/*
* This query is only initiated for FCP initiator mode.
*/
len = fc_gid_ft_build(&fchs, bfa_fcxp_get_reqbuf(fcxp), ns->port->pid,
FC_TYPE_FCP);
bfa_fcxp_send(fcxp, NULL, port->fabric->vf_id, port->lp_tag, BFA_FALSE,
FC_CLASS_3, len, &fchs, bfa_fcs_port_ns_gid_ft_response,
(void *)ns, bfa_fcxp_get_maxrsp(port->fcs->bfa),
FC_RA_TOV);
port->stats.ns_gidft_sent++;
bfa_sm_send_event(ns, NSSM_EVENT_GIDFT_SENT);
}
static void
bfa_fcs_port_ns_gid_ft_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_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)cbarg;
struct bfa_fcs_port_s *port = ns->port;
struct ct_hdr_s *cthdr = NULL;
u32 n_pids;
bfa_trc(port->fcs, port->port_cfg.pwwn);
/*
* Sanity Checks
*/
if (req_status != BFA_STATUS_OK) {
bfa_trc(port->fcs, req_status);
port->stats.ns_gidft_rsp_err++;
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
return;
}
if (resid_len != 0) {
/*
* TBD : we will need to allocate a larger buffer & retry the
* command
*/
bfa_trc(port->fcs, rsp_len);
bfa_trc(port->fcs, resid_len);
return;
}
cthdr = (struct ct_hdr_s *) BFA_FCXP_RSP_PLD(fcxp);
cthdr->cmd_rsp_code = bfa_os_ntohs(cthdr->cmd_rsp_code);
switch (cthdr->cmd_rsp_code) {
case CT_RSP_ACCEPT:
port->stats.ns_gidft_accepts++;
n_pids = (fc_get_ctresp_pyld_len(rsp_len) / sizeof(u32));
bfa_trc(port->fcs, n_pids);
bfa_fcs_port_ns_process_gidft_pids(port,
(u32 *) (cthdr + 1),
n_pids);
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
break;
case CT_RSP_REJECT:
/*
* Check the reason code & explanation.
* There may not have been any FC4 devices in the fabric
*/
port->stats.ns_gidft_rejects++;
bfa_trc(port->fcs, cthdr->reason_code);
bfa_trc(port->fcs, cthdr->exp_code);
if ((cthdr->reason_code == CT_RSN_UNABLE_TO_PERF)
&& (cthdr->exp_code == CT_NS_EXP_FT_NOT_REG)) {
bfa_sm_send_event(ns, NSSM_EVENT_RSP_OK);
} else {
/*
* for all other errors, retry
*/
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
break;
default:
port->stats.ns_gidft_unknown_rsp++;
bfa_trc(port->fcs, cthdr->cmd_rsp_code);
bfa_sm_send_event(ns, NSSM_EVENT_RSP_ERROR);
}
}
/**
* This routine will be called by bfa_timer on timer timeouts.
*
* param[in] port - pointer to bfa_fcs_port_t.
*
* return
* void
*
* Special Considerations:
*
* note
*/
static void
bfa_fcs_port_ns_timeout(void *arg)
{
struct bfa_fcs_port_ns_s *ns = (struct bfa_fcs_port_ns_s *)arg;
ns->port->stats.ns_timeouts++;
bfa_sm_send_event(ns, NSSM_EVENT_TIMEOUT);
}
/*
* Process the PID list in GID_FT response
*/
static void
bfa_fcs_port_ns_process_gidft_pids(struct bfa_fcs_port_s *port,
u32 *pid_buf, u32 n_pids)
{
struct fcgs_gidft_resp_s *gidft_entry;
struct bfa_fcs_rport_s *rport;
u32 ii;
for (ii = 0; ii < n_pids; ii++) {
gidft_entry = (struct fcgs_gidft_resp_s *) &pid_buf[ii];
if (gidft_entry->pid == port->pid)
continue;
/*
* Check if this rport already exists
*/
rport = bfa_fcs_port_get_rport_by_pid(port, gidft_entry->pid);
if (rport == NULL) {
/*
* this is a new device. create rport
*/
rport = bfa_fcs_rport_create(port, gidft_entry->pid);
} else {
/*
* this rport already exists
*/
bfa_fcs_rport_scn(rport);
}
bfa_trc(port->fcs, gidft_entry->pid);
/*
* if the last entry bit is set, bail out.
*/
if (gidft_entry->last)
return;
}
}
/**
* fcs_ns_public FCS nameserver public interfaces
*/
/*
* Functions called by port/fab.
* These will send relevant Events to the ns state machine.
*/
void
bfa_fcs_port_ns_init(struct bfa_fcs_port_s *port)
{
struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);
ns->port = port;
bfa_sm_set_state(ns, bfa_fcs_port_ns_sm_offline);
}
void
bfa_fcs_port_ns_offline(struct bfa_fcs_port_s *port)
{
struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);
ns->port = port;
bfa_sm_send_event(ns, NSSM_EVENT_PORT_OFFLINE);
}
void
bfa_fcs_port_ns_online(struct bfa_fcs_port_s *port)
{
struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);
ns->port = port;
bfa_sm_send_event(ns, NSSM_EVENT_PORT_ONLINE);
}
void
bfa_fcs_port_ns_query(struct bfa_fcs_port_s *port)
{
struct bfa_fcs_port_ns_s *ns = BFA_FCS_GET_NS_FROM_PORT(port);
bfa_trc(port->fcs, port->pid);
bfa_sm_send_event(ns, NSSM_EVENT_NS_QUERY);
}
static void
bfa_fcs_port_ns_boot_target_disc(struct bfa_fcs_port_s *port)
{
struct bfa_fcs_rport_s *rport;
u8 nwwns;
wwn_t *wwns;
int ii;
bfa_iocfc_get_bootwwns(port->fcs->bfa, &nwwns, &wwns);
for (ii = 0; ii < nwwns; ++ii) {
rport = bfa_fcs_rport_create_by_wwn(port, wwns[ii]);
bfa_assert(rport);
}
}
