#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ide.h>
+#include <linux/hdreg.h>
#include <linux/completion.h>
#include <linux/reboot.h>
#include <linux/cdrom.h>
if (drive->media != ide_disk)
break;
/* Not supported? Switch to next step now. */
- if (!drive->wcache || !ide_id_has_flush_cache(drive->id)) {
+ if (ata_id_flush_enabled(drive->id) == 0 ||
+ (drive->dev_flags & IDE_DFLAG_WCACHE) == 0) {
ide_complete_power_step(drive, rq, 0, 0);
return ide_stopped;
}
- if (ide_id_has_flush_cache_ext(drive->id))
+ if (ata_id_flush_ext_enabled(drive->id))
args->tf.command = ATA_CMD_FLUSH_EXT;
else
args->tf.command = ATA_CMD_FLUSH;
if (drive->hwif->dma_ops == NULL)
break;
/*
- * TODO: respect ->using_dma setting
+ * TODO: respect IDE_DFLAG_USING_DMA
*/
ide_set_dma(drive);
break;
if (blk_pm_suspend_request(rq)) {
blk_stop_queue(drive->queue);
} else {
- drive->blocked = 0;
+ drive->dev_flags &= ~IDE_DFLAG_BLOCKED;
blk_start_queue(drive->queue);
}
HWGROUP(drive)->rq = NULL;
{
ide_hwif_t *hwif = drive->hwif;
- if ((stat & ATA_BUSY) || ((stat & ATA_DF) && !drive->nowerr)) {
+ if ((stat & ATA_BUSY) ||
+ ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
/* other bits are useless when BUSY */
rq->errors |= ERROR_RESET;
} else if (stat & ATA_ERR) {
{
ide_hwif_t *hwif = drive->hwif;
- if ((stat & ATA_BUSY) || ((stat & ATA_DF) && !drive->nowerr)) {
+ if ((stat & ATA_BUSY) ||
+ ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) {
/* other bits are useless when BUSY */
rq->errors |= ERROR_RESET;
} else {
if (set_pio_mode_abuse(drive->hwif, req_pio)) {
/*
- * take ide_lock for drive->[no_]unmask/[no_]io_32bit
+ * take ide_lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT
*/
if (req_pio == 8 || req_pio == 9) {
unsigned long flags;
} else
port_ops->set_pio_mode(drive, req_pio);
} else {
- int keep_dma = drive->using_dma;
+ int keep_dma =
+ !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
ide_set_pio(drive, req_pio);
return ide_stopped;
}
+int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
+ int arg)
+{
+ struct request_queue *q = drive->queue;
+ struct request *rq;
+ int ret = 0;
+
+ if (!(setting->flags & DS_SYNC))
+ return setting->set(drive, arg);
+
+ rq = blk_get_request(q, READ, GFP_KERNEL);
+ if (!rq)
+ return -ENOMEM;
+
+ rq->cmd_type = REQ_TYPE_SPECIAL;
+ rq->cmd_len = 5;
+ rq->cmd[0] = REQ_DEVSET_EXEC;
+ *(int *)&rq->cmd[1] = arg;
+ rq->special = setting->set;
+
+ if (blk_execute_rq(q, NULL, rq, 0))
+ ret = rq->errors;
+ blk_put_request(rq);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ide_devset_execute);
+
static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
{
switch (rq->cmd[0]) {
+ case REQ_DEVSET_EXEC:
+ {
+ int err, (*setfunc)(ide_drive_t *, int) = rq->special;
+
+ err = setfunc(drive, *(int *)&rq->cmd[1]);
+ if (err)
+ rq->errors = err;
+ else
+ err = 1;
+ ide_end_request(drive, err, 0);
+ return ide_stopped;
+ }
case REQ_DRIVE_RESET:
return ide_do_reset(drive);
default:
if (blk_pm_suspend_request(rq) &&
pm->pm_step == ide_pm_state_start_suspend)
/* Mark drive blocked when starting the suspend sequence. */
- drive->blocked = 1;
+ drive->dev_flags |= IDE_DFLAG_BLOCKED;
else if (blk_pm_resume_request(rq) &&
pm->pm_step == ide_pm_state_start_resume) {
/*
* start_request - start of I/O and command issuing for IDE
*
* start_request() initiates handling of a new I/O request. It
- * accepts commands and I/O (read/write) requests. It also does
- * the final remapping for weird stuff like EZDrive. Once
- * device mapper can work sector level the EZDrive stuff can go away
+ * accepts commands and I/O (read/write) requests.
*
* FIXME: this function needs a rename
*/
static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq)
{
ide_startstop_t startstop;
- sector_t block;
BUG_ON(!blk_rq_started(rq));
goto kill_rq;
}
- block = rq->sector;
- if (blk_fs_request(rq) &&
- (drive->media == ide_disk || drive->media == ide_floppy)) {
- block += drive->sect0;
- }
- /* Yecch - this will shift the entire interval,
- possibly killing some innocent following sector */
- if (block == 0 && drive->remap_0_to_1 == 1)
- block = 1; /* redirect MBR access to EZ-Drive partn table */
-
if (blk_pm_request(rq))
ide_check_pm_state(drive, rq);
return ide_special_rq(drive, rq);
drv = *(ide_driver_t **)rq->rq_disk->private_data;
- return drv->do_request(drive, rq, block);
+
+ return drv->do_request(drive, rq, rq->sector);
}
return do_special(drive);
kill_rq:
if (timeout > WAIT_WORSTCASE)
timeout = WAIT_WORSTCASE;
drive->sleep = timeout + jiffies;
- drive->sleeping = 1;
+ drive->dev_flags |= IDE_DFLAG_SLEEPING;
}
EXPORT_SYMBOL(ide_stall_queue);
}
do {
- if ((!drive->sleeping || time_after_eq(jiffies, drive->sleep))
- && !elv_queue_empty(drive->queue)) {
- if (!best
- || (drive->sleeping && (!best->sleeping || time_before(drive->sleep, best->sleep)))
- || (!best->sleeping && time_before(WAKEUP(drive), WAKEUP(best))))
- {
+ u8 dev_s = !!(drive->dev_flags & IDE_DFLAG_SLEEPING);
+ u8 best_s = (best && !!(best->dev_flags & IDE_DFLAG_SLEEPING));
+
+ if ((dev_s == 0 || time_after_eq(jiffies, drive->sleep)) &&
+ !elv_queue_empty(drive->queue)) {
+ if (best == NULL ||
+ (dev_s && (best_s == 0 || time_before(drive->sleep, best->sleep))) ||
+ (best_s == 0 && time_before(WAKEUP(drive), WAKEUP(best)))) {
if (!blk_queue_plugged(drive->queue))
best = drive;
}
}
} while ((drive = drive->next) != hwgroup->drive);
- if (best && best->nice1 && !best->sleeping && best != hwgroup->drive && best->service_time > WAIT_MIN_SLEEP) {
+
+ if (best && (best->dev_flags & IDE_DFLAG_NICE1) &&
+ (best->dev_flags & IDE_DFLAG_SLEEPING) == 0 &&
+ best != hwgroup->drive && best->service_time > WAIT_MIN_SLEEP) {
long t = (signed long)(WAKEUP(best) - jiffies);
if (t >= WAIT_MIN_SLEEP) {
/*
*/
drive = best->next;
do {
- if (!drive->sleeping
+ if ((drive->dev_flags & IDE_DFLAG_SLEEPING) == 0
&& time_before(jiffies - best->service_time, WAKEUP(drive))
&& time_before(WAKEUP(drive), jiffies + t))
{
hwgroup->rq = NULL;
drive = hwgroup->drive;
do {
- if (drive->sleeping && (!sleeping || time_before(drive->sleep, sleep))) {
+ if ((drive->dev_flags & IDE_DFLAG_SLEEPING) &&
+ (sleeping == 0 ||
+ time_before(drive->sleep, sleep))) {
sleeping = 1;
sleep = drive->sleep;
}
}
hwgroup->hwif = hwif;
hwgroup->drive = drive;
- drive->sleeping = 0;
+ drive->dev_flags &= ~IDE_DFLAG_SLEEPING;
drive->service_start = jiffies;
if (blk_queue_plugged(drive->queue)) {
* We count how many times we loop here to make sure we service
* all drives in the hwgroup without looping for ever
*/
- if (drive->blocked && !blk_pm_request(rq) && !(rq->cmd_flags & REQ_PREEMPT)) {
+ if ((drive->dev_flags & IDE_DFLAG_BLOCKED) &&
+ blk_pm_request(rq) == 0 &&
+ (rq->cmd_flags & REQ_PREEMPT) == 0) {
drive = drive->next ? drive->next : hwgroup->drive;
if (loops++ < 4 && !blk_queue_plugged(drive->queue))
goto again;
*/
hwif->ide_dma_clear_irq(drive);
- if (drive->unmask)
+ if (drive->dev_flags & IDE_DFLAG_UNMASK)
local_irq_enable_in_hardirq();
/* service this interrupt, may set handler for next interrupt */
startstop = handler(drive);