linux/drivers/scsi/libsas/sas_event.c

76 lines
2.2 KiB
C

/*
* Serial Attached SCSI (SAS) Event processing
*
* Copyright (C) 2005 Adaptec, Inc. All rights reserved.
* Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
*
* This file is licensed under GPLv2.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <scsi/scsi_host.h>
#include "sas_internal.h"
#include "sas_dump.h"
static void notify_ha_event(struct sas_ha_struct *sas_ha, enum ha_event event)
{
BUG_ON(event >= HA_NUM_EVENTS);
sas_queue_event(event, &sas_ha->event_lock, &sas_ha->pending,
&sas_ha->ha_events[event], sas_ha->core.shost);
}
static void notify_port_event(struct asd_sas_phy *phy, enum port_event event)
{
struct sas_ha_struct *ha = phy->ha;
BUG_ON(event >= PORT_NUM_EVENTS);
sas_queue_event(event, &ha->event_lock, &phy->port_events_pending,
&phy->port_events[event], ha->core.shost);
}
static void notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
{
struct sas_ha_struct *ha = phy->ha;
BUG_ON(event >= PHY_NUM_EVENTS);
sas_queue_event(event, &ha->event_lock, &phy->phy_events_pending,
&phy->phy_events[event], ha->core.shost);
}
int sas_init_events(struct sas_ha_struct *sas_ha)
{
static void (*sas_ha_event_fns[HA_NUM_EVENTS])(void *) = {
[HAE_RESET] = sas_hae_reset,
};
int i;
spin_lock_init(&sas_ha->event_lock);
for (i = 0; i < HA_NUM_EVENTS; i++)
INIT_WORK(&sas_ha->ha_events[i], sas_ha_event_fns[i], sas_ha);
sas_ha->notify_ha_event = notify_ha_event;
sas_ha->notify_port_event = notify_port_event;
sas_ha->notify_phy_event = notify_phy_event;
return 0;
}