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libata: Add 32bit PIO support

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This matters for some controllers and in one or two cases almost doubles
PIO performance. Add a bmdma32 operations set we can inherit and activate
it for some controllers

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Alan Cox
2009-01-05 14:16:39 +00:00
committed by Jeff Garzik
parent e427fe042c
commit 871af1210f
7 changed files with 66 additions and 9 deletions
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4
drivers/ata/pata_sil680.c
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@@ -32,7 +32,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_sil680"
#define DRV_VERSION "0.4.8"
#define DRV_VERSION "0.4.9"
#define SIL680_MMIO_BAR 5
@@ -195,7 +195,7 @@ static struct scsi_host_template sil680_sht = {
};
static struct ata_port_operations sil680_port_ops = {
.inherits = &ata_bmdma_port_ops,
.inherits = &ata_bmdma32_port_ops,
.cable_detect = sil680_cable_detect,
.set_piomode = sil680_set_piomode,
.set_dmamode = sil680_set_dmamode,