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libata: implement and use sata_std_hardreset()

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Implement sata_std_hardreset(), which simply wraps around
sata_link_hardreset().  sata_std_hardreset() becomes new standard
hardreset method for sata_port_ops and sata_sff_hardreset() moves from
ata_base_port_ops to ata_sff_port_ops, which is where it really
belongs.

ata_is_builtin_hardreset() is added so that both
ata_std_error_handler() and ata_sff_error_handler() skip both builtin
hardresets if SCR isn't accessible.

piix_sidpr_hardreset() in ata_piix.c is identical to
sata_std_hardreset() in functionality and got replaced with the
standard function.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo
2008-04-07 22:47:19 +09:00
committed by Jeff Garzik
parent 9dadd45b24
commit 57c9efdfb3
6 changed files with 47 additions and 37 deletions
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7
drivers/ata/libata-eh.c
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@@ -2857,11 +2857,8 @@ void ata_std_error_handler(struct ata_port *ap)
struct ata_port_operations *ops = ap->ops;
ata_reset_fn_t hardreset = ops->hardreset;
/* sata_std_hardreset is inherited to all drivers from
* ata_base_port_ops. Ignore it if SCR access is not
* available.
*/
if (hardreset == sata_sff_hardreset && !sata_scr_valid(&ap->link))
/* ignore built-in hardreset if SCR access is not available */
if (ata_is_builtin_hardreset(hardreset) && !sata_scr_valid(&ap->link))
hardreset = NULL;
ata_do_eh(ap, ops->prereset, ops->softreset, hardreset, ops->postreset);