linux/drivers/scsi/bfa/lport_api.c
Jing Huang c507341713 [SCSI] bfa: fix rport speed setting
When a rport goes offline, its speed setting was not reset. Subsequently, if
the rport was not deleted due to it coming back online within rport del
timeout, previously discovered speed would continue to show up. The fix is to
reset the speed when processing rport offline transition.

In rport attributes, rport's with unknown speed were indicated as TRL
enforced.  The right thing do to would be to use TRL default speed to
determine if TRL is enforced, when TRL is enabled.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-07-27 12:04:10 -05:00

303 lines
6.3 KiB
C

/*
* 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.
*/
/**
* port_api.c BFA FCS port
*/
#include <fcs/bfa_fcs.h>
#include <fcs/bfa_fcs_lport.h>
#include <fcs/bfa_fcs_rport.h>
#include "fcs_rport.h"
#include "fcs_fabric.h"
#include "fcs_trcmod.h"
#include "fcs_vport.h"
BFA_TRC_FILE(FCS, PORT_API);
/**
* fcs_port_api BFA FCS port API
*/
void
bfa_fcs_cfg_base_port(struct bfa_fcs_s *fcs, struct bfa_port_cfg_s *port_cfg)
{
}
struct bfa_fcs_port_s *
bfa_fcs_get_base_port(struct bfa_fcs_s *fcs)
{
return &fcs->fabric.bport;
}
wwn_t
bfa_fcs_port_get_rport(struct bfa_fcs_port_s *port, wwn_t wwn, int index,
int nrports, bfa_boolean_t bwwn)
{
struct list_head *qh, *qe;
struct bfa_fcs_rport_s *rport = NULL;
int i;
struct bfa_fcs_s *fcs;
if (port == NULL || nrports == 0)
return (wwn_t) 0;
fcs = port->fcs;
bfa_trc(fcs, (u32) nrports);
i = 0;
qh = &port->rport_q;
qe = bfa_q_first(qh);
while ((qe != qh) && (i < nrports)) {
rport = (struct bfa_fcs_rport_s *)qe;
if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
qe = bfa_q_next(qe);
bfa_trc(fcs, (u32) rport->pwwn);
bfa_trc(fcs, rport->pid);
bfa_trc(fcs, i);
continue;
}
if (bwwn) {
if (!memcmp(&wwn, &rport->pwwn, 8))
break;
} else {
if (i == index)
break;
}
i++;
qe = bfa_q_next(qe);
}
bfa_trc(fcs, i);
if (rport)
return rport->pwwn;
else
return (wwn_t) 0;
}
void
bfa_fcs_port_get_rports(struct bfa_fcs_port_s *port, wwn_t rport_wwns[],
int *nrports)
{
struct list_head *qh, *qe;
struct bfa_fcs_rport_s *rport = NULL;
int i;
struct bfa_fcs_s *fcs;
if (port == NULL || rport_wwns == NULL || *nrports == 0)
return;
fcs = port->fcs;
bfa_trc(fcs, (u32) *nrports);
i = 0;
qh = &port->rport_q;
qe = bfa_q_first(qh);
while ((qe != qh) && (i < *nrports)) {
rport = (struct bfa_fcs_rport_s *)qe;
if (bfa_os_ntoh3b(rport->pid) > 0xFFF000) {
qe = bfa_q_next(qe);
bfa_trc(fcs, (u32) rport->pwwn);
bfa_trc(fcs, rport->pid);
bfa_trc(fcs, i);
continue;
}
rport_wwns[i] = rport->pwwn;
i++;
qe = bfa_q_next(qe);
}
bfa_trc(fcs, i);
*nrports = i;
return;
}
/*
* Iterate's through all the rport's in the given port to
* determine the maximum operating speed.
*
* To be used in TRL Functionality only
*/
enum bfa_pport_speed
bfa_fcs_port_get_rport_max_speed(struct bfa_fcs_port_s *port)
{
struct list_head *qh, *qe;
struct bfa_fcs_rport_s *rport = NULL;
struct bfa_fcs_s *fcs;
enum bfa_pport_speed max_speed = 0;
struct bfa_pport_attr_s pport_attr;
enum bfa_pport_speed pport_speed, rport_speed;
bfa_boolean_t trl_enabled = bfa_fcport_is_ratelim(port->fcs->bfa);
if (port == NULL)
return 0;
fcs = port->fcs;
/*
* Get Physical port's current speed
*/
bfa_fcport_get_attr(port->fcs->bfa, &pport_attr);
pport_speed = pport_attr.speed;
bfa_trc(fcs, pport_speed);
qh = &port->rport_q;
qe = bfa_q_first(qh);
while (qe != qh) {
rport = (struct bfa_fcs_rport_s *) qe;
if ((bfa_os_ntoh3b(rport->pid) > 0xFFF000) ||
(bfa_fcs_rport_get_state(rport) ==
BFA_RPORT_OFFLINE)) {
qe = bfa_q_next(qe);
continue;
}
rport_speed = rport->rpf.rpsc_speed;
if ((trl_enabled) && (rport_speed ==
BFA_PPORT_SPEED_UNKNOWN)) {
/* Use default ratelim speed setting */
rport_speed =
bfa_fcport_get_ratelim_speed(port->fcs->bfa);
}
if ((rport_speed == BFA_PPORT_SPEED_8GBPS) ||
(rport_speed > pport_speed)) {
max_speed = rport_speed;
break;
} else if (rport_speed > max_speed) {
max_speed = rport_speed;
}
qe = bfa_q_next(qe);
}
bfa_trc(fcs, max_speed);
return max_speed;
}
struct bfa_fcs_port_s *
bfa_fcs_lookup_port(struct bfa_fcs_s *fcs, u16 vf_id, wwn_t lpwwn)
{
struct bfa_fcs_vport_s *vport;
bfa_fcs_vf_t *vf;
bfa_assert(fcs != NULL);
vf = bfa_fcs_vf_lookup(fcs, vf_id);
if (vf == NULL) {
bfa_trc(fcs, vf_id);
return NULL;
}
if (!lpwwn || (vf->bport.port_cfg.pwwn == lpwwn))
return &vf->bport;
vport = bfa_fcs_fabric_vport_lookup(vf, lpwwn);
if (vport)
return &vport->lport;
return NULL;
}
/*
* API corresponding to VmWare's NPIV_VPORT_GETINFO.
*/
void
bfa_fcs_port_get_info(struct bfa_fcs_port_s *port,
struct bfa_port_info_s *port_info)
{
bfa_trc(port->fcs, port->fabric->fabric_name);
if (port->vport == NULL) {
/*
* This is a Physical port
*/
port_info->port_type = BFA_PORT_TYPE_PHYSICAL;
/*
* @todo : need to fix the state & reason
*/
port_info->port_state = 0;
port_info->offline_reason = 0;
port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
port_info->node_wwn = bfa_fcs_port_get_nwwn(port);
port_info->max_vports_supp =
bfa_lps_get_max_vport(port->fcs->bfa);
port_info->num_vports_inuse =
bfa_fcs_fabric_vport_count(port->fabric);
port_info->max_rports_supp = BFA_FCS_MAX_RPORTS_SUPP;
port_info->num_rports_inuse = port->num_rports;
} else {
/*
* This is a virtual port
*/
port_info->port_type = BFA_PORT_TYPE_VIRTUAL;
/*
* @todo : need to fix the state & reason
*/
port_info->port_state = 0;
port_info->offline_reason = 0;
port_info->port_wwn = bfa_fcs_port_get_pwwn(port);
port_info->node_wwn = bfa_fcs_port_get_nwwn(port);
}
}
void
bfa_fcs_port_get_stats(struct bfa_fcs_port_s *fcs_port,
struct bfa_port_stats_s *port_stats)
{
bfa_os_memcpy(port_stats, &fcs_port->stats,
sizeof(struct bfa_port_stats_s));
return;
}
void
bfa_fcs_port_clear_stats(struct bfa_fcs_port_s *fcs_port)
{
bfa_os_memset(&fcs_port->stats, 0, sizeof(struct bfa_port_stats_s));
return;
}
void
bfa_fcs_port_enable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
{
fcs_port->port_cfg.roles |= BFA_PORT_ROLE_FCP_IPFC;
return;
}
void
bfa_fcs_port_disable_ipfc_roles(struct bfa_fcs_port_s *fcs_port)
{
fcs_port->port_cfg.roles &= ~BFA_PORT_ROLE_FCP_IPFC;
return;
}