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ide: add ->max_sectors field to struct ide_port_info

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* Add ->max_sectors field to struct ide_port_info to allow host drivers
  to specify value used for hwif->rqsize (if smaller than the default).

* Convert pdc202xx_old to use ->max_sectors and remove no longer needed
  IDE_HFLAG_RQSIZE_256 flag.

There should be no functional changes caused by this patch.

Acked-by: Sergei Shtyltov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-12-29 20:27:34 +01:00
parent 7f1ac8c4b9
commit 6b4924962c
3 changed files with 10 additions and 8 deletions
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9
drivers/ide/pdc202xx_old.c
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@@ -350,16 +350,17 @@ static const struct ide_dma_ops pdc2026x_dma_ops = {
.dma_timeout = pdc202xx_dma_timeout,
};
#define DECLARE_PDC2026X_DEV(udma, extra_flags) \
#define DECLARE_PDC2026X_DEV(udma, sectors) \
{ \
.name = DRV_NAME, \
.init_chipset = init_chipset_pdc202xx, \
.port_ops = &pdc2026x_port_ops, \
.dma_ops = &pdc2026x_dma_ops, \
.host_flags = IDE_HFLAGS_PDC202XX | extra_flags, \
.host_flags = IDE_HFLAGS_PDC202XX, \
.pio_mask = ATA_PIO4, \
.mwdma_mask = ATA_MWDMA2, \
.udma_mask = udma, \
.max_sectors = sectors, \
}
static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = {
@@ -376,8 +377,8 @@ static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = {
/* 1: PDC2026{2,3} */
DECLARE_PDC2026X_DEV(ATA_UDMA4, 0),
/* 2: PDC2026{5,7} */
DECLARE_PDC2026X_DEV(ATA_UDMA5, IDE_HFLAG_RQSIZE_256),
/* 2: PDC2026{5,7}: UDMA5, limit LBA48 requests to 256 sectors */
DECLARE_PDC2026X_DEV(ATA_UDMA5, 256),
};
/**