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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-12-29 20:27:34 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-12-29 20:27:34 +0100
commit6b4924962c49655494d2c8e9d3faab0e349a3062 (patch)
tree5236d3ef808f8c781b40b7a6328f65fe3f25891b
parent7f1ac8c4b9dadc55ec656b368f5f470f2cbe3083 (diff)
downloadop-kernel-dev-6b4924962c49655494d2c8e9d3faab0e349a3062.zip
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ide: add ->max_sectors field to struct ide_port_info
* 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>
-rw-r--r--drivers/ide/ide-probe.c4
-rw-r--r--drivers/ide/pdc202xx_old.c9
-rw-r--r--include/linux/ide.h5
3 files changed, 10 insertions, 8 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 81f61e8..f76c22c 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1442,8 +1442,8 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
hwif->mate->serialized = hwif->serialized = 1;
}
- if (d->host_flags & IDE_HFLAG_RQSIZE_256)
- hwif->rqsize = 256;
+ if (d->max_sectors)
+ hwif->rqsize = d->max_sectors;
/* call chipset specific routine for each enabled port */
if (d->init_hwif)
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index 799557c..624e62e 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -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),
};
/**
diff --git a/include/linux/ide.h b/include/linux/ide.h
index fc1a966..2574dda 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1372,8 +1372,6 @@ 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),
/* use 32-bit I/O ops */
IDE_HFLAG_IO_32BIT = (1 << 24),
/* unmask IRQs */
@@ -1411,6 +1409,9 @@ struct ide_port_info {
ide_pci_enablebit_t enablebits[2];
hwif_chipset_t chipset;
+
+ u16 max_sectors; /* if < than the default one */
+
u32 host_flags;
u8 pio_mask;
u8 swdma_mask;
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