51d643caa6
to kproc_xxx as they actually make whole processes. Thos makes way for us to add REAL kthread_create() and friends that actually make theads. it turns out that most of these calls actually end up being moved back to the thread version when it's added. but we need to make this cosmetic change first. I'd LOVE to do this rename in 7.0 so that we can eventually MFC the new kthread_xxx() calls.
154 lines
4.0 KiB
C
154 lines
4.0 KiB
C
/*-
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* FreeBSD OSM Library for the aic7xxx aic79xx based Adaptec SCSI controllers
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*
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* Copyright (c) 1994-2002 Justin T. Gibbs.
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* Copyright (c) 2001-2003 Adaptec Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU Public License ("GPL").
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic_osm_lib.c#5 $
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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static void aic_recovery_thread(void *arg);
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void
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aic_set_recoveryscb(struct aic_softc *aic, struct scb *scb)
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{
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if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
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struct scb *list_scb;
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scb->flags |= SCB_RECOVERY_SCB;
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AIC_SCB_DATA(aic)->recovery_scbs++;
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/*
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* Go through all of our pending SCBs and remove
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* any scheduled timeouts for them. We will reschedule
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* them after we've successfully fixed this problem.
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*/
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LIST_FOREACH(list_scb, &aic->pending_scbs, pending_links) {
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union ccb *ccb;
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ccb = list_scb->io_ctx;
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callout_stop(&scb->io_timer);
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}
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}
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}
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void
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aic_platform_timeout(void *arg)
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{
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struct scb *scb;
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scb = (struct scb *)arg;
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aic_lock(scb->aic_softc);
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aic_timeout(scb);
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aic_unlock(scb->aic_softc);
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}
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int
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aic_spawn_recovery_thread(struct aic_softc *aic)
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{
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int error;
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error = aic_kthread_create(aic_recovery_thread, aic,
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&aic->platform_data->recovery_thread,
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/*flags*/0, /*altstack*/0, "aic_recovery%d",
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aic->unit);
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return (error);
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}
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/*
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* Lock is not held on entry.
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*/
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void
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aic_terminate_recovery_thread(struct aic_softc *aic)
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{
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if (aic->platform_data->recovery_thread == NULL) {
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return;
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}
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aic->flags |= AIC_SHUTDOWN_RECOVERY;
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wakeup(aic);
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/*
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* Sleep on a slightly different location
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* for this interlock just for added safety.
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*/
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msleep(aic->platform_data, &aic->platform_data->mtx, PUSER, "thtrm", 0);
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}
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static void
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aic_recovery_thread(void *arg)
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{
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struct aic_softc *aic;
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aic = (struct aic_softc *)arg;
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aic_lock(aic);
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for (;;) {
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if (LIST_EMPTY(&aic->timedout_scbs) != 0
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&& (aic->flags & AIC_SHUTDOWN_RECOVERY) == 0)
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msleep(aic, &aic->platform_data->mtx, PUSER, "idle", 0);
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if ((aic->flags & AIC_SHUTDOWN_RECOVERY) != 0)
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break;
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aic_recover_commands(aic);
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}
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aic->platform_data->recovery_thread = NULL;
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wakeup(aic->platform_data);
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aic_unlock(aic);
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kproc_exit(0);
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}
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void
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aic_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
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{
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#if __FreeBSD_version >= 500000
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cam_calc_geometry(ccg, extended);
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#else
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uint32_t size_mb;
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uint32_t secs_per_cylinder;
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size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
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if (size_mb > 1024 && extended) {
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ccg->heads = 255;
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ccg->secs_per_track = 63;
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} else {
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ccg->heads = 64;
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ccg->secs_per_track = 32;
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}
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secs_per_cylinder = ccg->heads * ccg->secs_per_track;
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ccg->cylinders = ccg->volume_size / secs_per_cylinder;
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ccg->ccb_h.status = CAM_REQ_CMP;
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#endif
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}
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