2 * FreeBSD OSM Library for the aic7xxx aic79xx based Adaptec SCSI controllers
4 * Copyright (c) 1994-2002 Justin T. Gibbs.
5 * Copyright (c) 2001-2003 Adaptec Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU Public License ("GPL").
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic_osm_lib.c#5 $
34 * $FreeBSD: src/sys/dev/aic7xxx/aic_osm_lib.c,v 1.3 2004/08/17 00:14:31 gibbs Exp $
35 * $DragonFly: src/sys/dev/disk/aic7xxx/aic_osm_lib.c,v 1.3 2008/02/09 18:13:13 pavalos Exp $
38 static void aic_recovery_thread(void *arg);
41 aic_set_recoveryscb(struct aic_softc *aic, struct scb *scb)
44 if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
47 scb->flags |= SCB_RECOVERY_SCB;
49 AIC_SCB_DATA(aic)->recovery_scbs++;
52 * Go through all of our pending SCBs and remove
53 * any scheduled timeouts for them. We will reschedule
54 * them after we've successfully fixed this problem.
56 LIST_FOREACH(list_scb, &aic->pending_scbs, pending_links) {
59 ccb = list_scb->io_ctx;
60 callout_stop(&scb->io_timer);
66 aic_platform_timeout(void *arg)
70 scb = (struct scb *)arg;
71 aic_lock(scb->aic_softc);
73 aic_unlock(scb->aic_softc);
77 aic_spawn_recovery_thread(struct aic_softc *aic)
81 error = aic_kthread_create(aic_recovery_thread, aic,
82 &aic->platform_data->recovery_thread,
83 /*flags*/0, /*altstack*/0, "aic_recovery%d",
89 * Lock is not held on entry.
92 aic_terminate_recovery_thread(struct aic_softc *aic)
95 if (aic->platform_data->recovery_thread == NULL) {
98 aic->flags |= AIC_SHUTDOWN_RECOVERY;
101 * Sleep on a slightly different location
102 * for this interlock just for added safety.
106 tsleep_interlock(aic->platform_data);
108 tsleep(aic->platform_data, 0, "thtrm", 0);
113 aic_recovery_thread(void *arg)
115 struct aic_softc *aic;
117 aic = (struct aic_softc *)arg;
121 if (LIST_EMPTY(&aic->timedout_scbs) != 0
122 && (aic->flags & AIC_SHUTDOWN_RECOVERY) == 0) {
124 tsleep_interlock(aic);
126 tsleep(aic, 0, "idle", 0);
131 if ((aic->flags & AIC_SHUTDOWN_RECOVERY) != 0)
134 aic_recover_commands(aic);
136 aic->platform_data->recovery_thread = NULL;
137 wakeup(aic->platform_data);