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ide: add IDE_HFLAG_RQSIZE_256 host flag 

Add IDE_HFLAG_RQSIZE_256 host flag to tell ide_pci_setup_ports() to set
hwif->rqsize to 256 sectors.  Convert pdc202xx_old host driver to use it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-10-20 00:32:30 +02:00
parent 8acf28c090
commit 272a370900
3 changed files with 11 additions and 12 deletions
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18
drivers/ide/pci/pdc202xx_old.c
View File

@ -302,13 +302,6 @@ static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev,
static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
/* PDC20265 has problems with large LBA48 requests */
if ((dev->device == PCI_DEVICE_ID_PROMISE_20267) ||
(dev->device == PCI_DEVICE_ID_PROMISE_20265))
hwif->rqsize = 256;
hwif->set_pio_mode = &pdc202xx_set_pio_mode;
hwif->set_dma_mode = &pdc202xx_set_mode;
@ -382,7 +375,7 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
}
}
#define DECLARE_PDC2026X_DEV(name_str, udma) \
#define DECLARE_PDC2026X_DEV(name_str, udma, extra_flags) \
{ \
.name = name_str, \
.init_chipset = init_chipset_pdc202xx, \
@ -390,6 +383,7 @@ static void __devinit pdc202ata4_fixup_irq(struct pci_dev *dev,
.init_dma = init_dma_pdc202xx, \
.extra = 48, \
.host_flags = IDE_HFLAG_ERROR_STOPS_FIFO | \
extra_flags | \
IDE_HFLAG_OFF_BOARD, \
.pio_mask = ATA_PIO4, \
.mwdma_mask = ATA_MWDMA2, \
@ -410,10 +404,10 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
.udma_mask = ATA_UDMA2,
},
/* 1 */ DECLARE_PDC2026X_DEV("PDC20262", ATA_UDMA4),
/* 2 */ DECLARE_PDC2026X_DEV("PDC20263", ATA_UDMA4),
/* 3 */ DECLARE_PDC2026X_DEV("PDC20265", ATA_UDMA5),
/* 4 */ DECLARE_PDC2026X_DEV("PDC20267", ATA_UDMA5),
/* 1 */ DECLARE_PDC2026X_DEV("PDC20262", ATA_UDMA4, 0),
/* 2 */ DECLARE_PDC2026X_DEV("PDC20263", ATA_UDMA4, 0),
/* 3 */ DECLARE_PDC2026X_DEV("PDC20265", ATA_UDMA5, IDE_HFLAG_RQSIZE_256),
/* 4 */ DECLARE_PDC2026X_DEV("PDC20267", ATA_UDMA5, IDE_HFLAG_RQSIZE_256),
};
/**

3
drivers/ide/setup-pci.c
View File

@ -582,6 +582,9 @@ void ide_pci_setup_ports(struct pci_dev *dev, ide_pci_device_t *d, int pciirq, a
hwif->drives[0].autotune = 1;
hwif->drives[1].autotune = 1;
if (d->host_flags & IDE_HFLAG_RQSIZE_256)
hwif->rqsize = 256;
if (d->init_hwif)
/* Call chipset-specific routine
* for each enabled hwif

2
include/linux/ide.h
View File

@ -1265,6 +1265,8 @@ enum {
IDE_HFLAG_LEGACY_IRQS = (1 << 21),
/* force use of legacy IRQs */
IDE_HFLAG_FORCE_LEGACY_IRQS = (1 << 22),
/* limit LBA48 requests to 256 sectors */
IDE_HFLAG_RQSIZE_256 = (1 << 23),
};
#ifdef CONFIG_BLK_DEV_OFFBOARD