static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
{
struct request_pm_state *pm = rq->data;
if (blk_pm_suspend_request(rq) &&
pm->pm_step == IDE_PM_START_SUSPEND)
/* Mark drive blocked when starting the suspend sequence. */
drive->dev_flags |= IDE_DFLAG_BLOCKED;
else if (blk_pm_resume_request(rq) &&
pm->pm_step == IDE_PM_START_RESUME) {
/*
* The first thing we do on wakeup is to wait for BSY bit to
* go away (with a looong timeout) as a drive on this hwif may
* just be POSTing itself.
* We do that before even selecting as the "other" device on
* the bus may be broken enough to walk on our toes at this
* point.
*/
ide_hwif_t *hwif = drive->hwif;
int rc;
#ifdef DEBUG_PM
printk("%s: Wakeup request inited, waiting for !BSY...\n", drive->name);
#endif
rc = ide_wait_not_busy(hwif, 35000);
if (rc)
printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name);
SELECT_DRIVE(drive);
hwif->tp_ops->set_irq(hwif, 1);
rc = ide_wait_not_busy(hwif, 100000);
if (rc)
printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name);
}
}
void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
{
struct request_pm_state *pm = rq->special;
if (rq->cmd_type == REQ_TYPE_PM_SUSPEND &&
pm->pm_step == IDE_PM_START_SUSPEND)
/* Mark drive blocked when starting the suspend sequence. */
drive->dev_flags |= IDE_DFLAG_BLOCKED;
else if (rq->cmd_type == REQ_TYPE_PM_RESUME &&
pm->pm_step == IDE_PM_START_RESUME) {
/*
* The first thing we do on wakeup is to wait for BSY bit to
* go away (with a looong timeout) as a drive on this hwif may
* just be POSTing itself.
* We do that before even selecting as the "other" device on
* the bus may be broken enough to walk on our toes at this
* point.
*/
ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
struct request_queue *q = drive->queue;
unsigned long flags;
int rc;
#ifdef DEBUG_PM
#ifdef CONFIG_DEBUG_PRINTK
printk("%s: Wakeup request inited, waiting for !BSY...\n", drive->name);
#else
;
#endif
#endif
rc = ide_wait_not_busy(hwif, 35000);
if (rc)
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name);
#else
;
#endif
tp_ops->dev_select(drive);
tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS);
rc = ide_wait_not_busy(hwif, 100000);
if (rc)
#ifdef CONFIG_DEBUG_PRINTK
printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name);
#else
;
#endif
spin_lock_irqsave(q->queue_lock, flags);
blk_start_queue(q);
spin_unlock_irqrestore(q->queue_lock, flags);
}
}
static int idescsi_eh_abort (struct scsi_cmnd *cmd)
{
idescsi_scsi_t *scsi = scsihost_to_idescsi(cmd->device->host);
ide_drive_t *drive = scsi->drive;
int busy;
int ret = FAILED;
/* In idescsi_eh_abort we try to gently pry our command from the ide subsystem */
if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
printk (KERN_WARNING "ide-scsi: abort called for %lu\n", cmd->serial_number);
if (!drive) {
printk (KERN_WARNING "ide-scsi: Drive not set in idescsi_eh_abort\n");
WARN_ON(1);
goto no_drive;
}
/* First give it some more time, how much is "right" is hard to say :-( */
busy = ide_wait_not_busy(HWIF(drive), 100); /* FIXME - uses mdelay which causes latency? */
if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
printk (KERN_WARNING "ide-scsi: drive did%s become ready\n", busy?" not":"");
spin_lock_irq(&ide_lock);
/* If there is no pc running we're done (our interrupt took care of it) */
if (!scsi->pc) {
ret = SUCCESS;
goto ide_unlock;
}
/* It's somewhere in flight. Does ide subsystem agree? */
if (scsi->pc->scsi_cmd->serial_number == cmd->serial_number && !busy &&
elv_queue_empty(drive->queue) && HWGROUP(drive)->rq != scsi->pc->rq) {
/*
* FIXME - not sure this condition can ever occur
*/
printk (KERN_ERR "ide-scsi: cmd aborted!\n");
if (blk_sense_request(scsi->pc->rq))
kfree(scsi->pc->buf);
/* we need to call blk_put_request twice. */
blk_put_request(scsi->pc->rq);
blk_put_request(scsi->pc->rq);
kfree(scsi->pc);
scsi->pc = NULL;
ret = SUCCESS;
}
ide_unlock:
spin_unlock_irq(&ide_lock);
no_drive:
if (test_bit(IDESCSI_LOG_CMD, &scsi->log))
printk (KERN_WARNING "ide-scsi: abort returns %s\n", ret == SUCCESS?"success":"failed");
return ret;
}
