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| author | Tejun Heo <htejun@gmail.com> | 2007-08-06 18:36:22 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:30 -0400 |
| commit | 9af5c9c97dc9d599281778864c72b385f0c63341 (patch) | |
| tree | 8359986bd42c4a9a5b1993078aa9ee4c7971ac3d /drivers/ata/pata_scc.c | |
| parent | 640fdb504941fa2b9f6f274716fc9f97f2bf6bff (diff) | |
| download | linux-9af5c9c97dc9d599281778864c72b385f0c63341.tar.bz2 | |
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_scc.c')
| -rw-r--r-- | drivers/ata/pata_scc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index 2d048ef25a5a..aab068fbb7bc 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -785,7 +785,7 @@ static u8 scc_bmdma_status (struct ata_port *ap) static void scc_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; unsigned int words = buflen >> 1; unsigned int i; u16 *buf16 = (u16 *) buf; |