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libata: make SCR access ops per-link

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Logically, SCR access ops should take @link; however, there was no
compelling reason to convert all SCR access ops when adding @link
abstraction as there's one-to-one mapping between a port and a non-PMP
link.  However, that assumption won't hold anymore with the scheduled
addition of slave link.

Make SCR access ops per-link.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Tejun Heo
2008-07-31 17:02:40 +09:00
committed by Jeff Garzik
parent 6ef190cc92
commit 82ef04fb4c
18 changed files with 153 additions and 141 deletions
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8
drivers/scsi/libsas/sas_ata.c
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@@ -294,10 +294,10 @@ static void sas_ata_post_internal(struct ata_queued_cmd *qc)
}
}
static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in,
static int sas_ata_scr_write(struct ata_link *link, unsigned int sc_reg_in,
u32 val)
{
struct domain_device *dev = ap->private_data;
struct domain_device *dev = link->ap->private_data;
SAS_DPRINTK("STUB %s\n", __func__);
switch (sc_reg_in) {
@@ -319,10 +319,10 @@ static int sas_ata_scr_write(struct ata_port *ap, unsigned int sc_reg_in,
return 0;
}
static int sas_ata_scr_read(struct ata_port *ap, unsigned int sc_reg_in,
static int sas_ata_scr_read(struct ata_link *link, unsigned int sc_reg_in,
u32 *val)
{
struct domain_device *dev = ap->private_data;
struct domain_device *dev = link->ap->private_data;
SAS_DPRINTK("STUB %s\n", __func__);
switch (sc_reg_in) {