Commit 272a3709 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 8acf28c0

drivers/ide/pci/pdc202xx_old.c

+6 −12
Original line number Diff line number Diff line
@@ -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),

};



/**

drivers/ide/setup-pci.c

+3 −0
Original line number Diff line number Diff line
@@ -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

include/linux/ide.h

+2 −0
Original line number Diff line number Diff line
@@ -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