blob: 9db30fb5caf2e1be01aa27b5433aa78d63889eb4 [file] [log] [blame]
James Bottomley2908d772006-08-29 09:22:51 -05001/*
2 * Serial Attached SCSI (SAS) Event processing
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 *
23 */
24
25#include <scsi/scsi_host.h>
26#include "sas_internal.h"
27#include "sas_dump.h"
28
29static void notify_ha_event(struct sas_ha_struct *sas_ha, enum ha_event event)
30{
31 BUG_ON(event >= HA_NUM_EVENTS);
32
33 sas_queue_event(event, &sas_ha->event_lock, &sas_ha->pending,
Darrick J. Wong6b0efb82007-01-11 14:15:43 -080034 &sas_ha->ha_events[event].work, sas_ha);
James Bottomley2908d772006-08-29 09:22:51 -050035}
36
37static void notify_port_event(struct asd_sas_phy *phy, enum port_event event)
38{
39 struct sas_ha_struct *ha = phy->ha;
40
41 BUG_ON(event >= PORT_NUM_EVENTS);
42
43 sas_queue_event(event, &ha->event_lock, &phy->port_events_pending,
Darrick J. Wong6b0efb82007-01-11 14:15:43 -080044 &phy->port_events[event].work, ha);
James Bottomley2908d772006-08-29 09:22:51 -050045}
46
47static void notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
48{
49 struct sas_ha_struct *ha = phy->ha;
50
51 BUG_ON(event >= PHY_NUM_EVENTS);
52
53 sas_queue_event(event, &ha->event_lock, &phy->phy_events_pending,
Darrick J. Wong6b0efb82007-01-11 14:15:43 -080054 &phy->phy_events[event].work, ha);
James Bottomley2908d772006-08-29 09:22:51 -050055}
56
57int sas_init_events(struct sas_ha_struct *sas_ha)
58{
David Howellsc4028952006-11-22 14:57:56 +000059 static const work_func_t sas_ha_event_fns[HA_NUM_EVENTS] = {
James Bottomley2908d772006-08-29 09:22:51 -050060 [HAE_RESET] = sas_hae_reset,
61 };
62
63 int i;
64
65 spin_lock_init(&sas_ha->event_lock);
66
David Howellsc4028952006-11-22 14:57:56 +000067 for (i = 0; i < HA_NUM_EVENTS; i++) {
68 INIT_WORK(&sas_ha->ha_events[i].work, sas_ha_event_fns[i]);
69 sas_ha->ha_events[i].ha = sas_ha;
70 }
James Bottomley2908d772006-08-29 09:22:51 -050071
72 sas_ha->notify_ha_event = notify_ha_event;
73 sas_ha->notify_port_event = notify_port_event;
74 sas_ha->notify_phy_event = notify_phy_event;
75
76 return 0;
77}