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authorTejun Heo <htejun@gmail.com>2007-08-06 18:36:22 +0900
committerJeff Garzik <jeff@garzik.org>2007-10-12 14:55:30 -0400
commit9af5c9c97dc9d599281778864c72b385f0c63341 (patch)
tree8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/pata_qdi.c
parent640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff)
downloadop-kernel-dev-9af5c9c97dc9d599281778864c72b385f0c63341.zip
op-kernel-dev-9af5c9c97dc9d599281778864c72b385f0c63341.tar.gz
libata-link: introduce ata_link
Introduce ata_link. It abstracts PHY and sits between ata_port and ata_device. This new level of abstraction is necessary to support SATA Port Multiplier, which basically adds a bunch of links (PHYs) to a ATA host port. Fields related to command execution, spd_limit and EH are per-link and thus moved to ata_link. This patch only defines the host link. Multiple link handling will be added later. Also, a lot of ap->link derefences are added but many of them will be removed as each part is converted to deal directly with ata_link instead of ata_port. This patch introduces no behavior change. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_qdi.c')
-rw-r--r--drivers/ata/pata_qdi.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 1998c19..ec2206e 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -126,7 +126,7 @@ static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc)
static void qdi_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
{
- struct ata_port *ap = adev->ap;
+ struct ata_port *ap = adev->link->ap;
int slop = buflen & 3;
if (ata_id_has_dword_io(adev->id)) {
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