diff options
| author | Alan Cox <alan@redhat.com> | 2009-01-05 14:16:39 +0000 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2009-01-08 16:34:27 -0500 |
| commit | 871af1210f13966ab911ed2166e4ab2ce775b99d (patch) | |
| tree | f17f0016f6e966d54a379a3de6e6bbde3b9359fe /include | |
| parent | e427fe042cf90c0652eed9a85e57a8fd8af89890 (diff) | |
| download | op-kernel-dev-871af1210f13966ab911ed2166e4ab2ce775b99d.zip op-kernel-dev-871af1210f13966ab911ed2166e4ab2ce775b99d.tar.gz | |
libata: Add 32bit PIO support
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 3449de5..4f7c8fb 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1518,6 +1518,7 @@ extern void sata_pmp_error_handler(struct ata_port *ap); extern const struct ata_port_operations ata_sff_port_ops; extern const struct ata_port_operations ata_bmdma_port_ops; +extern const struct ata_port_operations ata_bmdma32_port_ops; /* PIO only, sg_tablesize and dma_boundary limits can be removed */ #define ATA_PIO_SHT(drv_name) \ @@ -1545,6 +1546,8 @@ extern void ata_sff_exec_command(struct ata_port *ap, const struct ata_taskfile *tf); extern unsigned int ata_sff_data_xfer(struct ata_device *dev, unsigned char *buf, unsigned int buflen, int rw); +extern unsigned int ata_sff_data_xfer32(struct ata_device *dev, + unsigned char *buf, unsigned int buflen, int rw); extern unsigned int ata_sff_data_xfer_noirq(struct ata_device *dev, unsigned char *buf, unsigned int buflen, int rw); extern u8 ata_sff_irq_on(struct ata_port *ap); |
