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ide: DMA_PIO_RETRY -> IDE_DFLAG_DMA_PIO_RETRY 

Add IDE_DFLAG_DMA_PIO_RETRY and use it instead of
ide_drive_t.state + DMA_PIO_RETRY.

There should be no functional changes cause by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-10-13 21:39:37 +02:00
parent 97100fc816
commit c39220483e
2 changed files with 6 additions and 10 deletions
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7
drivers/ide/ide-io.c
View File

@ -78,8 +78,9 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
* decide whether to reenable DMA -- 3 is a random magic for now, * decide whether to reenable DMA -- 3 is a random magic for now,
* if we DMA timeout more than 3 times, just stay in PIO * if we DMA timeout more than 3 times, just stay in PIO
*/ */
if (drive->state == DMA_PIO_RETRY && drive->retry_pio <= 3) { if ((drive->dev_flags & IDE_DFLAG_DMA_PIO_RETRY) &&
drive->state = 0; drive->retry_pio <= 3) {
drive->dev_flags &= ~IDE_DFLAG_DMA_PIO_RETRY;
ide_dma_on(drive); ide_dma_on(drive);
} }
@ -1195,8 +1196,8 @@ static ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
* a timeout -- we'll reenable after we finish this next request * a timeout -- we'll reenable after we finish this next request
* (or rather the first chunk of it) in pio. * (or rather the first chunk of it) in pio.
*/ */
drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY;
drive->retry_pio++; drive->retry_pio++;
drive->state = DMA_PIO_RETRY;
ide_dma_off_quietly(drive); ide_dma_off_quietly(drive);
/* /*

9
include/linux/ide.h
View File

@ -48,12 +48,6 @@ typedef unsigned char byte; /* used everywhere */
#define ERROR_RESET 3 /* Reset controller every 4th retry */ #define ERROR_RESET 3 /* Reset controller every 4th retry */
#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ #define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
/*
* state flags
*/
#define DMA_PIO_RETRY 1 /* retrying in PIO */
#define HWIF(drive) ((ide_hwif_t *)((drive)->hwif)) #define HWIF(drive) ((ide_hwif_t *)((drive)->hwif))
#define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup)) #define HWGROUP(drive) ((ide_hwgroup_t *)(HWIF(drive)->hwgroup))
@ -506,6 +500,8 @@ enum {
IDE_DFLAG_WCACHE = (1 << 23), IDE_DFLAG_WCACHE = (1 << 23),
/* used for ignoring ATA_DF */ /* used for ignoring ATA_DF */
IDE_DFLAG_NOWERR = (1 << 24), IDE_DFLAG_NOWERR = (1 << 24),
/* retrying in PIO */
IDE_DFLAG_DMA_PIO_RETRY = (1 << 25),
}; };
struct ide_drive_s { struct ide_drive_s {
@ -535,7 +531,6 @@ struct ide_drive_s {
select_t select; /* basic drive/head select reg value */ select_t select; /* basic drive/head select reg value */
u8 retry_pio; /* retrying dma capable host in pio */ u8 retry_pio; /* retrying dma capable host in pio */
u8 state; /* retry state */
u8 waiting_for_dma; /* dma currently in progress */ u8 waiting_for_dma; /* dma currently in progress */
u8 quirk_list; /* considered quirky, set for a specific host */ u8 quirk_list; /* considered quirky, set for a specific host */