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linux/drivers/scsi/bfa/fabric.c
Jing Huang 4f1806bc3c [SCSI] bfa: use standards defined timeout for ELS/CT 
Use standards defined 2 * RA_TOV as a timeout for ELS Request retries.
And standards defined 3 * RA_TOV as a timeout for FC-CT Request retries.
Also, added a check to send RPSC2 to a Brocade Fabric only.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:04:08 -05:00

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/*
* 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.
*/
/**
* fabric.c Fabric module implementation.
*/
#include "fcs_fabric.h"
#include "fcs_lport.h"
#include "fcs_vport.h"
#include "fcs_trcmod.h"
#include "fcs_fcxp.h"
#include "fcs_auth.h"
#include "fcs.h"
#include "fcbuild.h"
#include <log/bfa_log_fcs.h>
#include <aen/bfa_aen_port.h>
#include <bfa_svc.h>
BFA_TRC_FILE(FCS, FABRIC);
#define BFA_FCS_FABRIC_RETRY_DELAY (2000) /* Milliseconds */
#define BFA_FCS_FABRIC_CLEANUP_DELAY (10000) /* Milliseconds */
#define bfa_fcs_fabric_set_opertype(__fabric) do { \
if (bfa_fcport_get_topology((__fabric)->fcs->bfa) \
== BFA_PPORT_TOPOLOGY_P2P) \
(__fabric)->oper_type = BFA_PPORT_TYPE_NPORT; \
else \
(__fabric)->oper_type = BFA_PPORT_TYPE_NLPORT; \
} while (0)
/*
* forward declarations
*/
static void bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_delay(void *cbarg);
static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_delete_comp(void *cbarg);
static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric,
struct fchs_s *fchs, u16 len);
static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
struct fchs_s *fchs, u16 len);
static void bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric);
static void bfa_fcs_fabric_flogiacc_comp(void *fcsarg,
struct bfa_fcxp_s *fcxp,
void *cbarg, bfa_status_t status,
u32 rsp_len,
u32 resid_len,
struct fchs_s *rspfchs);
/**
* fcs_fabric_sm fabric state machine functions
*/
/**
* Fabric state machine events
*/
enum bfa_fcs_fabric_event {
BFA_FCS_FABRIC_SM_CREATE = 1, /* fabric create from driver */
BFA_FCS_FABRIC_SM_DELETE = 2, /* fabric delete from driver */
BFA_FCS_FABRIC_SM_LINK_DOWN = 3, /* link down from port */
BFA_FCS_FABRIC_SM_LINK_UP = 4, /* link up from port */
BFA_FCS_FABRIC_SM_CONT_OP = 5, /* continue op from flogi/auth */
BFA_FCS_FABRIC_SM_RETRY_OP = 6, /* continue op from flogi/auth */
BFA_FCS_FABRIC_SM_NO_FABRIC = 7, /* no fabric from flogi/auth
*/
BFA_FCS_FABRIC_SM_PERF_EVFP = 8, /* perform EVFP from
*flogi/auth */
BFA_FCS_FABRIC_SM_ISOLATE = 9, /* isolate from EVFP processing */
BFA_FCS_FABRIC_SM_NO_TAGGING = 10,/* no VFT tagging from EVFP */
BFA_FCS_FABRIC_SM_DELAYED = 11, /* timeout delay event */
BFA_FCS_FABRIC_SM_AUTH_FAILED = 12, /* authentication failed */
BFA_FCS_FABRIC_SM_AUTH_SUCCESS = 13, /* authentication successful
*/
BFA_FCS_FABRIC_SM_DELCOMP = 14, /* all vports deleted event */
BFA_FCS_FABRIC_SM_LOOPBACK = 15, /* Received our own FLOGI */
BFA_FCS_FABRIC_SM_START = 16, /* fabric delete from driver */
};
static void bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
static void bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event);
/**
* Beginning state before fabric creation.
*/
static void
bfa_fcs_fabric_sm_uninit(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_CREATE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
bfa_fcs_fabric_init(fabric);
bfa_fcs_lport_init(&fabric->bport, &fabric->bport.port_cfg);
break;
case BFA_FCS_FABRIC_SM_LINK_UP:
case BFA_FCS_FABRIC_SM_LINK_DOWN:
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Beginning state before fabric creation.
*/
static void
bfa_fcs_fabric_sm_created(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_START:
if (bfa_fcport_is_linkup(fabric->fcs->bfa)) {
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
bfa_fcs_fabric_login(fabric);
} else
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
break;
case BFA_FCS_FABRIC_SM_LINK_UP:
case BFA_FCS_FABRIC_SM_LINK_DOWN:
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
bfa_fcs_modexit_comp(fabric->fcs);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Link is down, awaiting LINK UP event from port. This is also the
* first state at fabric creation.
*/
static void
bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_LINK_UP:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
bfa_fcs_fabric_login(fabric);
break;
case BFA_FCS_FABRIC_SM_RETRY_OP:
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* FLOGI is in progress, awaiting FLOGI reply.
*/
static void
bfa_fcs_fabric_sm_flogi(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_CONT_OP:
bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit);
fabric->fab_type = BFA_FCS_FABRIC_SWITCHED;
if (fabric->auth_reqd && fabric->is_auth) {
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth);
bfa_trc(fabric->fcs, event);
} else {
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
bfa_fcs_fabric_notify_online(fabric);
}
break;
case BFA_FCS_FABRIC_SM_RETRY_OP:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi_retry);
bfa_timer_start(fabric->fcs->bfa, &fabric->delay_timer,
bfa_fcs_fabric_delay, fabric,
BFA_FCS_FABRIC_RETRY_DELAY);
break;
case BFA_FCS_FABRIC_SM_LOOPBACK:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_loopback);
bfa_lps_discard(fabric->lps);
bfa_fcs_fabric_set_opertype(fabric);
break;
case BFA_FCS_FABRIC_SM_NO_FABRIC:
fabric->fab_type = BFA_FCS_FABRIC_N2N;
bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit);
bfa_fcs_fabric_notify_online(fabric);
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_nofabric);
break;
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_lps_discard(fabric->lps);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_lps_discard(fabric->lps);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
static void
bfa_fcs_fabric_sm_flogi_retry(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_DELAYED:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_flogi);
bfa_fcs_fabric_login(fabric);
break;
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_timer_stop(&fabric->delay_timer);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_timer_stop(&fabric->delay_timer);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Authentication is in progress, awaiting authentication results.
*/
static void
bfa_fcs_fabric_sm_auth(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_AUTH_FAILED:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
bfa_lps_discard(fabric->lps);
break;
case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_online);
bfa_fcs_fabric_notify_online(fabric);
break;
case BFA_FCS_FABRIC_SM_PERF_EVFP:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp);
break;
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_lps_discard(fabric->lps);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Authentication failed
*/
static void
bfa_fcs_fabric_sm_auth_failed(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_fcs_fabric_notify_offline(fabric);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Port is in loopback mode.
*/
static void
bfa_fcs_fabric_sm_loopback(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_fcs_fabric_notify_offline(fabric);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* There is no attached fabric - private loop or NPort-to-NPort topology.
*/
static void
bfa_fcs_fabric_sm_nofabric(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_lps_discard(fabric->lps);
bfa_fcs_fabric_notify_offline(fabric);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
case BFA_FCS_FABRIC_SM_NO_FABRIC:
bfa_trc(fabric->fcs, fabric->bb_credit);
bfa_fcport_set_tx_bbcredit(fabric->fcs->bfa, fabric->bb_credit);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Fabric is online - normal operating state.
*/
static void
bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_linkdown);
bfa_lps_discard(fabric->lps);
bfa_fcs_fabric_notify_offline(fabric);
break;
case BFA_FCS_FABRIC_SM_DELETE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_deleting);
bfa_fcs_fabric_delete(fabric);
break;
case BFA_FCS_FABRIC_SM_AUTH_FAILED:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
bfa_lps_discard(fabric->lps);
break;
case BFA_FCS_FABRIC_SM_AUTH_SUCCESS:
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* Exchanging virtual fabric parameters.
*/
static void
bfa_fcs_fabric_sm_evfp(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_CONT_OP:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_evfp_done);
break;
case BFA_FCS_FABRIC_SM_ISOLATE:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_isolated);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* EVFP exchange complete and VFT tagging is enabled.
*/
static void
bfa_fcs_fabric_sm_evfp_done(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
}
/**
* Port is isolated after EVFP exchange due to VF_ID mismatch (N and F).
*/
static void
bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
bfa_log(fabric->fcs->logm, BFA_LOG_FCS_FABRIC_ISOLATED,
fabric->bport.port_cfg.pwwn, fabric->fcs->port_vfid,
fabric->event_arg.swp_vfid);
}
/**
* Fabric is being deleted, awaiting vport delete completions.
*/
static void
bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
enum bfa_fcs_fabric_event event)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, event);
switch (event) {
case BFA_FCS_FABRIC_SM_DELCOMP:
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
bfa_fcs_modexit_comp(fabric->fcs);
break;
case BFA_FCS_FABRIC_SM_LINK_UP:
break;
case BFA_FCS_FABRIC_SM_LINK_DOWN:
bfa_fcs_fabric_notify_offline(fabric);
break;
default:
bfa_sm_fault(fabric->fcs, event);
}
}
/**
* fcs_fabric_private fabric private functions
*/
static void
bfa_fcs_fabric_init(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_port_cfg_s *port_cfg = &fabric->bport.port_cfg;
port_cfg->roles = BFA_PORT_ROLE_FCP_IM;
port_cfg->nwwn = bfa_ioc_get_nwwn(&fabric->fcs->bfa->ioc);
port_cfg->pwwn = bfa_ioc_get_pwwn(&fabric->fcs->bfa->ioc);
}
/**
* Port Symbolic Name Creation for base port.
*/
void
bfa_fcs_fabric_psymb_init(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_port_cfg_s *port_cfg = &fabric->bport.port_cfg;
char model[BFA_ADAPTER_MODEL_NAME_LEN] = {0};
struct bfa_fcs_driver_info_s *driver_info = &fabric->fcs->driver_info;
bfa_ioc_get_adapter_model(&fabric->fcs->bfa->ioc, model);
/*
* Model name/number
*/
strncpy((char *)&port_cfg->sym_name, model,
BFA_FCS_PORT_SYMBNAME_MODEL_SZ);
strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
/*
* Driver Version
*/
strncat((char *)&port_cfg->sym_name, (char *)driver_info->version,
BFA_FCS_PORT_SYMBNAME_VERSION_SZ);
strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
/*
* Host machine name
*/
strncat((char *)&port_cfg->sym_name,
(char *)driver_info->host_machine_name,
BFA_FCS_PORT_SYMBNAME_MACHINENAME_SZ);
strncat((char *)&port_cfg->sym_name, BFA_FCS_PORT_SYMBNAME_SEPARATOR,
sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
/*
* Host OS Info :
* If OS Patch Info is not there, do not truncate any bytes from the
* OS name string and instead copy the entire OS info string (64 bytes).
*/
if (driver_info->host_os_patch[0] == '\0') {
strncat((char *)&port_cfg->sym_name,
(char *)driver_info->host_os_name, BFA_FCS_OS_STR_LEN);
strncat((char *)&port_cfg->sym_name,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
} else {
strncat((char *)&port_cfg->sym_name,
(char *)driver_info->host_os_name,
BFA_FCS_PORT_SYMBNAME_OSINFO_SZ);
strncat((char *)&port_cfg->sym_name,
BFA_FCS_PORT_SYMBNAME_SEPARATOR,
sizeof(BFA_FCS_PORT_SYMBNAME_SEPARATOR));
/*
* Append host OS Patch Info
*/
strncat((char *)&port_cfg->sym_name,
(char *)driver_info->host_os_patch,
BFA_FCS_PORT_SYMBNAME_OSPATCH_SZ);
}
/*
* null terminate
*/
port_cfg->sym_name.symname[BFA_SYMNAME_MAXLEN - 1] = 0;
}
/**
* bfa lps login completion callback
*/
void
bfa_cb_lps_flogi_comp(void *bfad, void *uarg, bfa_status_t status)
{
struct bfa_fcs_fabric_s *fabric = uarg;
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_trc(fabric->fcs, status);
switch (status) {
case BFA_STATUS_OK:
fabric->stats.flogi_accepts++;
break;
case BFA_STATUS_INVALID_MAC:
/*
* Only for CNA
*/
fabric->stats.flogi_acc_err++;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
return;
case BFA_STATUS_EPROTOCOL:
switch (bfa_lps_get_extstatus(fabric->lps)) {
case BFA_EPROTO_BAD_ACCEPT:
fabric->stats.flogi_acc_err++;
break;
case BFA_EPROTO_UNKNOWN_RSP:
fabric->stats.flogi_unknown_rsp++;
break;
default:
break;
}
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
return;
case BFA_STATUS_FABRIC_RJT:
fabric->stats.flogi_rejects++;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
return;
default:
fabric->stats.flogi_rsp_err++;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_RETRY_OP);
return;
}
fabric->bb_credit = bfa_lps_get_peer_bbcredit(fabric->lps);
bfa_trc(fabric->fcs, fabric->bb_credit);
if (!bfa_lps_is_brcd_fabric(fabric->lps))
fabric->fabric_name = bfa_lps_get_peer_nwwn(fabric->lps);
/*
* Check port type. It should be 1 = F-port.
*/
if (bfa_lps_is_fport(fabric->lps)) {
fabric->bport.pid = bfa_lps_get_pid(fabric->lps);
fabric->is_npiv = bfa_lps_is_npiv_en(fabric->lps);
fabric->is_auth = bfa_lps_is_authreq(fabric->lps);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_CONT_OP);
} else {
/*
* Nport-2-Nport direct attached
*/
fabric->bport.port_topo.pn2n.rem_port_wwn =
bfa_lps_get_peer_pwwn(fabric->lps);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
}
bfa_trc(fabric->fcs, fabric->bport.pid);
bfa_trc(fabric->fcs, fabric->is_npiv);
bfa_trc(fabric->fcs, fabric->is_auth);
}
/**
* Allocate and send FLOGI.
*/
static void
bfa_fcs_fabric_login(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_s *bfa = fabric->fcs->bfa;
struct bfa_port_cfg_s *pcfg = &fabric->bport.port_cfg;
u8 alpa = 0;
if (bfa_fcport_get_topology(bfa) == BFA_PPORT_TOPOLOGY_LOOP)
alpa = bfa_fcport_get_myalpa(bfa);
bfa_lps_flogi(fabric->lps, fabric, alpa, bfa_fcport_get_maxfrsize(bfa),
pcfg->pwwn, pcfg->nwwn, fabric->auth_reqd);
fabric->stats.flogi_sent++;
}
static void
bfa_fcs_fabric_notify_online(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_fcs_vport_s *vport;
struct list_head *qe, *qen;
bfa_trc(fabric->fcs, fabric->fabric_name);
bfa_fcs_fabric_set_opertype(fabric);
fabric->stats.fabric_onlines++;
/**
* notify online event to base and then virtual ports
*/
bfa_fcs_port_online(&fabric->bport);
list_for_each_safe(qe, qen, &fabric->vport_q) {
vport = (struct bfa_fcs_vport_s *)qe;
bfa_fcs_vport_online(vport);
}
}
static void
bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_fcs_vport_s *vport;
struct list_head *qe, *qen;
bfa_trc(fabric->fcs, fabric->fabric_name);
fabric->stats.fabric_offlines++;
/**
* notify offline event first to vports and then base port.
*/
list_for_each_safe(qe, qen, &fabric->vport_q) {
vport = (struct bfa_fcs_vport_s *)qe;
bfa_fcs_vport_offline(vport);
}
bfa_fcs_port_offline(&fabric->bport);
fabric->fabric_name = 0;
fabric->fabric_ip_addr[0] = 0;
}
static void
bfa_fcs_fabric_delay(void *cbarg)
{
struct bfa_fcs_fabric_s *fabric = cbarg;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELAYED);
}
/**
* Delete all vports and wait for vport delete completions.
*/
static void
bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_fcs_vport_s *vport;
struct list_head *qe, *qen;
list_for_each_safe(qe, qen, &fabric->vport_q) {
vport = (struct bfa_fcs_vport_s *)qe;
bfa_fcs_vport_fcs_delete(vport);
}
bfa_fcs_port_delete(&fabric->bport);
bfa_wc_wait(&fabric->wc);
}
static void
bfa_fcs_fabric_delete_comp(void *cbarg)
{
struct bfa_fcs_fabric_s *fabric = cbarg;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP);
}
/**
* fcs_fabric_public fabric public functions
*/
/**
* Attach time initialization
*/
void
bfa_fcs_fabric_attach(struct bfa_fcs_s *fcs)
{
struct bfa_fcs_fabric_s *fabric;
fabric = &fcs->fabric;
bfa_os_memset(fabric, 0, sizeof(struct bfa_fcs_fabric_s));
/**
* Initialize base fabric.
*/
fabric->fcs = fcs;
INIT_LIST_HEAD(&fabric->vport_q);
INIT_LIST_HEAD(&fabric->vf_q);
fabric->lps = bfa_lps_alloc(fcs->bfa);
bfa_assert(fabric->lps);
/**
* Initialize fabric delete completion handler. Fabric deletion is complete
* when the last vport delete is complete.
*/
bfa_wc_init(&fabric->wc, bfa_fcs_fabric_delete_comp, fabric);
bfa_wc_up(&fabric->wc); /* For the base port */
bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_uninit);
bfa_fcs_lport_attach(&fabric->bport, fabric->fcs, FC_VF_ID_NULL, NULL);
}
void
bfa_fcs_fabric_modinit(struct bfa_fcs_s *fcs)
{
bfa_sm_send_event(&fcs->fabric, BFA_FCS_FABRIC_SM_CREATE);
bfa_trc(fcs, 0);
}
/**
* Module cleanup
*/
void
bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs)
{
struct bfa_fcs_fabric_s *fabric;
bfa_trc(fcs, 0);
/**
* Cleanup base fabric.
*/
fabric = &fcs->fabric;
bfa_lps_delete(fabric->lps);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELETE);
}
/**
* Fabric module start -- kick starts FCS actions
*/
void
bfa_fcs_fabric_modstart(struct bfa_fcs_s *fcs)
{
struct bfa_fcs_fabric_s *fabric;
bfa_trc(fcs, 0);
fabric = &fcs->fabric;
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_START);
}
/**
* Suspend fabric activity as part of driver suspend.
*/
void
bfa_fcs_fabric_modsusp(struct bfa_fcs_s *fcs)
{
}
bfa_boolean_t
bfa_fcs_fabric_is_loopback(struct bfa_fcs_fabric_s *fabric)
{
return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_loopback);
}
bfa_boolean_t
bfa_fcs_fabric_is_auth_failed(struct bfa_fcs_fabric_s *fabric)
{
return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_auth_failed);
}
enum bfa_pport_type
bfa_fcs_fabric_port_type(struct bfa_fcs_fabric_s *fabric)
{
return fabric->oper_type;
}
/**
* Link up notification from BFA physical port module.
*/
void
bfa_fcs_fabric_link_up(struct bfa_fcs_fabric_s *fabric)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_UP);
}
/**
* Link down notification from BFA physical port module.
*/
void
bfa_fcs_fabric_link_down(struct bfa_fcs_fabric_s *fabric)
{
bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LINK_DOWN);
}
/**
* A child vport is being created in the fabric.
*
* Call from vport module at vport creation. A list of base port and vports
* belonging to a fabric is maintained to propagate link events.
*
* param[in] fabric - Fabric instance. This can be a base fabric or vf.
* param[in] vport - Vport being created.
*
* @return None (always succeeds)
*/
void
bfa_fcs_fabric_addvport(struct bfa_fcs_fabric_s *fabric,
struct bfa_fcs_vport_s *vport)
{
/**
* - add vport to fabric's vport_q
*/
bfa_trc(fabric->fcs, fabric->vf_id);
list_add_tail(&vport->qe, &fabric->vport_q);
fabric->num_vports++;
bfa_wc_up(&fabric->wc);
}
/**
* A child vport is being deleted from fabric.
*
* Vport is being deleted.
*/
void
bfa_fcs_fabric_delvport(struct bfa_fcs_fabric_s *fabric,
struct bfa_fcs_vport_s *vport)
{
list_del(&vport->qe);
fabric->num_vports--;
bfa_wc_down(&fabric->wc);
}
/**
* Base port is deleted.
*/
void
bfa_fcs_fabric_port_delete_comp(struct bfa_fcs_fabric_s *fabric)
{
bfa_wc_down(&fabric->wc);
}
/**
* Check if fabric is online.
*
* param[in] fabric - Fabric instance. This can be a base fabric or vf.
*
* @return TRUE/FALSE
*/
int
bfa_fcs_fabric_is_online(struct bfa_fcs_fabric_s *fabric)
{
return bfa_sm_cmp_state(fabric, bfa_fcs_fabric_sm_online);
}
bfa_status_t
bfa_fcs_fabric_addvf(struct bfa_fcs_fabric_s *vf, struct bfa_fcs_s *fcs,
struct bfa_port_cfg_s *port_cfg,
struct bfad_vf_s *vf_drv)
{
bfa_sm_set_state(vf, bfa_fcs_fabric_sm_uninit);
return BFA_STATUS_OK;
}
/**
* Lookup for a vport withing a fabric given its pwwn
*/
struct bfa_fcs_vport_s *
bfa_fcs_fabric_vport_lookup(struct bfa_fcs_fabric_s *fabric, wwn_t pwwn)
{
struct bfa_fcs_vport_s *vport;
struct list_head *qe;
list_for_each(qe, &fabric->vport_q) {
vport = (struct bfa_fcs_vport_s *)qe;
if (bfa_fcs_port_get_pwwn(&vport->lport) == pwwn)
return vport;
}
return NULL;
}
/**
* In a given fabric, return the number of lports.
*
* param[in] fabric - Fabric instance. This can be a base fabric or vf.
*
* @return : 1 or more.
*/
u16
bfa_fcs_fabric_vport_count(struct bfa_fcs_fabric_s *fabric)
{
return fabric->num_vports;
}
/*
* Get OUI of the attached switch.
*
* Note : Use of this function should be avoided as much as possible.
* This function should be used only if there is any requirement
* to check for FOS version below 6.3.
* To check if the attached fabric is a brocade fabric, use
* bfa_lps_is_brcd_fabric() which works for FOS versions 6.3
* or above only.
*/
u16
bfa_fcs_fabric_get_switch_oui(struct bfa_fcs_fabric_s *fabric)
{
wwn_t fab_nwwn;
u8 *tmp;
u16 oui;
fab_nwwn = bfa_lps_get_peer_nwwn(fabric->lps);
tmp = (uint8_t *)&fab_nwwn;
oui = (tmp[3] << 8) | tmp[4];
return oui;
}
/**
* Unsolicited frame receive handling.
*/
void
bfa_fcs_fabric_uf_recv(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
u16 len)
{
u32 pid = fchs->d_id;
struct bfa_fcs_vport_s *vport;
struct list_head *qe;
struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
struct fc_logi_s *flogi = (struct fc_logi_s *) els_cmd;
bfa_trc(fabric->fcs, len);
bfa_trc(fabric->fcs, pid);
/**
* Look for our own FLOGI frames being looped back. This means an
* external loopback cable is in place. Our own FLOGI frames are
* sometimes looped back when switch port gets temporarily bypassed.
*/
if ((pid == bfa_os_ntoh3b(FC_FABRIC_PORT))
&& (els_cmd->els_code == FC_ELS_FLOGI)
&& (flogi->port_name == bfa_fcs_port_get_pwwn(&fabric->bport))) {
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOOPBACK);
return;
}
/**
* FLOGI/EVFP exchanges should be consumed by base fabric.
*/
if (fchs->d_id == bfa_os_hton3b(FC_FABRIC_PORT)) {
bfa_trc(fabric->fcs, pid);
bfa_fcs_fabric_process_uf(fabric, fchs, len);
return;
}
if (fabric->bport.pid == pid) {
/**
* All authentication frames should be routed to auth
*/
bfa_trc(fabric->fcs, els_cmd->els_code);
if (els_cmd->els_code == FC_ELS_AUTH) {
bfa_trc(fabric->fcs, els_cmd->els_code);
fabric->auth.response = (u8 *) els_cmd;
return;
}
bfa_trc(fabric->fcs, *(u8 *) ((u8 *) fchs));
bfa_fcs_port_uf_recv(&fabric->bport, fchs, len);
return;
}
/**
* look for a matching local port ID
*/
list_for_each(qe, &fabric->vport_q) {
vport = (struct bfa_fcs_vport_s *)qe;
if (vport->lport.pid == pid) {
bfa_fcs_port_uf_recv(&vport->lport, fchs, len);
return;
}
}
bfa_trc(fabric->fcs, els_cmd->els_code);
bfa_fcs_port_uf_recv(&fabric->bport, fchs, len);
}
/**
* Unsolicited frames to be processed by fabric.
*/
static void
bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric, struct fchs_s *fchs,
u16 len)
{
struct fc_els_cmd_s *els_cmd = (struct fc_els_cmd_s *) (fchs + 1);
bfa_trc(fabric->fcs, els_cmd->els_code);
switch (els_cmd->els_code) {
case FC_ELS_FLOGI:
bfa_fcs_fabric_process_flogi(fabric, fchs, len);
break;
default:
/*
* need to generate a LS_RJT
*/
break;
}
}
/**
* Process incoming FLOGI
*/
static void
bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
struct fchs_s *fchs, u16 len)
{
struct fc_logi_s *flogi = (struct fc_logi_s *) (fchs + 1);
struct bfa_fcs_port_s *bport = &fabric->bport;
bfa_trc(fabric->fcs, fchs->s_id);
fabric->stats.flogi_rcvd++;
/*
* Check port type. It should be 0 = n-port.
*/
if (flogi->csp.port_type) {
/*
* @todo: may need to send a LS_RJT
*/
bfa_trc(fabric->fcs, flogi->port_name);
fabric->stats.flogi_rejected++;
return;
}
fabric->bb_credit = bfa_os_ntohs(flogi->csp.bbcred);
bport->port_topo.pn2n.rem_port_wwn = flogi->port_name;
bport->port_topo.pn2n.reply_oxid = fchs->ox_id;
/*
* Send a Flogi Acc
*/
bfa_fcs_fabric_send_flogi_acc(fabric);
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_NO_FABRIC);
}
static void
bfa_fcs_fabric_send_flogi_acc(struct bfa_fcs_fabric_s *fabric)
{
struct bfa_port_cfg_s *pcfg = &fabric->bport.port_cfg;
struct bfa_fcs_port_n2n_s *n2n_port = &fabric->bport.port_topo.pn2n;
struct bfa_s *bfa = fabric->fcs->bfa;
struct bfa_fcxp_s *fcxp;
u16 reqlen;
struct fchs_s fchs;
fcxp = bfa_fcs_fcxp_alloc(fabric->fcs);
/**
* Do not expect this failure -- expect remote node to retry
*/
if (!fcxp)
return;
reqlen = fc_flogi_acc_build(&fchs, bfa_fcxp_get_reqbuf(fcxp),
bfa_os_hton3b(FC_FABRIC_PORT),
n2n_port->reply_oxid, pcfg->pwwn,
pcfg->nwwn, bfa_fcport_get_maxfrsize(bfa),
bfa_fcport_get_rx_bbcredit(bfa));
bfa_fcxp_send(fcxp, NULL, fabric->vf_id, bfa_lps_get_tag(fabric->lps),
BFA_FALSE, FC_CLASS_3, reqlen, &fchs,
bfa_fcs_fabric_flogiacc_comp, fabric,
FC_MAX_PDUSZ, 0); /* Timeout 0 indicates no
* response expected
*/
}
/**
* Flogi Acc completion callback.
*/
static void
bfa_fcs_fabric_flogiacc_comp(void *fcsarg, struct bfa_fcxp_s *fcxp, void *cbarg,
bfa_status_t status, u32 rsp_len,
u32 resid_len, struct fchs_s *rspfchs)
{
struct bfa_fcs_fabric_s *fabric = cbarg;
bfa_trc(fabric->fcs, status);
}
/*
*
* @param[in] fabric - fabric
* @param[in] result - 1
*
* @return - none
*/
void
bfa_fcs_auth_finished(struct bfa_fcs_fabric_s *fabric, enum auth_status status)
{
bfa_trc(fabric->fcs, status);
if (status == FC_AUTH_STATE_SUCCESS)
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_AUTH_SUCCESS);
else
bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_AUTH_FAILED);
}
/**
* Send AEN notification
*/
static void
bfa_fcs_fabric_aen_post(struct bfa_fcs_port_s *port,
enum bfa_port_aen_event event)
{
union bfa_aen_data_u aen_data;
struct bfa_log_mod_s *logmod = port->fcs->logm;
wwn_t pwwn = bfa_fcs_port_get_pwwn(port);
wwn_t fwwn = bfa_fcs_port_get_fabric_name(port);
char pwwn_ptr[BFA_STRING_32];
char fwwn_ptr[BFA_STRING_32];
wwn2str(pwwn_ptr, pwwn);
wwn2str(fwwn_ptr, fwwn);
bfa_log(logmod, BFA_LOG_CREATE_ID(BFA_AEN_CAT_PORT, event),
pwwn_ptr, fwwn_ptr);
aen_data.port.pwwn = pwwn;
aen_data.port.fwwn = fwwn;
}
/*
*
* @param[in] fabric - fabric
* @param[in] wwn_t - new fabric name
*
* @return - none
*/
void
bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
wwn_t fabric_name)
{
bfa_trc(fabric->fcs, fabric_name);
if (fabric->fabric_name == 0) {
/*
* With BRCD switches, we don't get Fabric Name in FLOGI.
* Don't generate a fabric name change event in this case.
*/
fabric->fabric_name = fabric_name;
} else {
fabric->fabric_name = fabric_name;
/*
* Generate a Event
*/
bfa_fcs_fabric_aen_post(&fabric->bport,
BFA_PORT_AEN_FABRIC_NAME_CHANGE);
}
}
/**
*
* @param[in] fabric - fabric
* @param[in] node_symname -
* Caller allocated buffer to receive the symbolic name
*
* @return - none
*/
void
bfa_fcs_get_sym_name(const struct bfa_fcs_s *fcs, char *node_symname)
{
bfa_os_memcpy(node_symname,
fcs->fabric.bport.port_cfg.sym_name.symname,
BFA_SYMNAME_MAXLEN);
}
/**
* Not used by FCS.
*/
void
bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
{
}
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