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/*
* FreeBSD OSM Library for the aic7xxx aic79xx based Adaptec SCSI controllers
*
* Copyright (c) 1994-2002 Justin T. Gibbs.
* Copyright (c) 2001-2003 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU Public License ("GPL").
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic_osm_lib.c#5 $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
static void aic_recovery_thread(void *arg);
void
aic_set_recoveryscb(struct aic_softc *aic, struct scb *scb)
{
if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
struct scb *list_scb;
scb->flags |= SCB_RECOVERY_SCB;
AIC_SCB_DATA(aic)->recovery_scbs++;
/*
* Go through all of our pending SCBs and remove
* any scheduled timeouts for them. We will reschedule
* them after we've successfully fixed this problem.
*/
LIST_FOREACH(list_scb, &aic->pending_scbs, pending_links) {
union ccb *ccb;
ccb = list_scb->io_ctx;
untimeout(aic_platform_timeout, list_scb,
ccb->ccb_h.timeout_ch);
}
}
}
void
aic_platform_timeout(void *arg)
{
struct scb *scb;
u_long s;
scb = (struct scb *)arg;
aic_lock(scb->aic_softc, &s);
aic_timeout(scb);
aic_unlock(scb->aic_softc, &s);
}
int
aic_spawn_recovery_thread(struct aic_softc *aic)
{
int error;
error = aic_kthread_create(aic_recovery_thread, aic,
&aic->platform_data->recovery_thread,
/*flags*/0, /*altstack*/0, "aic_recovery%d",
aic->unit);
return (error);
}
/*
* Lock is not held on entry.
*/
void
aic_terminate_recovery_thread(struct aic_softc *aic)
{
u_long s;
aic_lock(aic, &s);
if (aic->platform_data->recovery_thread == NULL) {
aic_unlock(aic, &s);
return;
}
aic->flags |= AIC_SHUTDOWN_RECOVERY;
wakeup(aic);
/*
* Sleep on a slightly different location
* for this interlock just for added safety.
*/
tsleep(aic->platform_data, PUSER, "thtrm", 0);
aic_unlock(aic, &s);
}
static void
aic_recovery_thread(void *arg)
{
struct aic_softc *aic;
u_long s;
#if __FreeBSD_version >= 500000
mtx_lock(&Giant);
#endif
aic = (struct aic_softc *)arg;
aic_lock(aic, &s);
for (;;) {
if (LIST_EMPTY(&aic->timedout_scbs) != 0
&& (aic->flags & AIC_SHUTDOWN_RECOVERY) == 0)
tsleep(aic, PUSER, "idle", 0);
if ((aic->flags & AIC_SHUTDOWN_RECOVERY) != 0)
break;
aic_unlock(aic, &s);
aic_recover_commands(aic);
aic_lock(aic, &s);
}
aic->platform_data->recovery_thread = NULL;
wakeup(aic->platform_data);
aic_unlock(aic, &s);
#if __FreeBSD_version >= 500000
mtx_unlock(&Giant);
#endif
kthread_exit(0);
}
void
aic_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
{
#if __FreeBSD_version >= 500000
cam_calc_geometry(ccg, extended);
#else
uint32_t size_mb;
uint32_t secs_per_cylinder;
size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
if (size_mb > 1024 && extended) {
ccg->heads = 255;
ccg->secs_per_track = 63;
} else {
ccg->heads = 64;
ccg->secs_per_track = 32;
}
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
ccg->ccb_h.status = CAM_REQ_CMP;
#endif
}
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