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| author | Robert Hancock <hancockr@shaw.ca> | 2006-10-28 04:08:41 +0200 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-02 04:40:27 +0100 |
| commit | fbbb262d9ea9bdbd79d7058271560e9990bc62d3 (patch) | |
| tree | 533ec01bf945518c99e71ec2b32c5fb426ab812a /drivers/ata/libata-sff.c | |
| parent | [libata] pata_marvell: minor and trivial cleanups (diff) | |
| download | linux-fbbb262d9ea9bdbd79d7058271560e9990bc62d3.tar.xz linux-fbbb262d9ea9bdbd79d7058271560e9990bc62d3.zip | |
[PATCH] sata_nv ADMA/NCQ support for nForce4
This patch adds support for ADMA mode on NVIDIA nForce4 (CK804/MCP04) SATA
controllers to the sata_nv driver. Benefits of ADMA mode include:
- NCQ support
- Reduced CPU overhead (controller DMAs command information from memory
instead of them being pushed in by the CPU)
- Full 64-bit DMA support
ADMA mode is enabled by default in this version. To disable it, set the
module parameter adma_enabled=0.
Signed-off-by: Robert Hancock <hancockr@shaw.ca>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/libata-sff.c')
| -rw-r--r-- | drivers/ata/libata-sff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 7645f2b30ccf..e178d6ae8b80 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -732,7 +732,7 @@ void ata_bmdma_drive_eh(struct ata_port *ap, ata_prereset_fn_t prereset, qc->tf.protocol == ATA_PROT_ATAPI_DMA)) { u8 host_stat; - host_stat = ata_bmdma_status(ap); + host_stat = ap->ops->bmdma_status(ap); ata_ehi_push_desc(&ehc->i, "BMDMA stat 0x%x", host_stat); |