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| author | Tejun Heo <htejun@gmail.com> | 2008-04-07 13:47:19 (GMT) |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-04-17 19:44:22 (GMT) |
| commit | 9dadd45b24145d6aee2fabb28d7aef972301892b (patch) | |
| tree | c97c323e2edd400bc94eaceddf20f84e9a6da005 /include | |
| parent | a89611e8489ac24f371c9fd6fef6605b170b16ba (diff) | |
| download | linux-9dadd45b24145d6aee2fabb28d7aef972301892b.tar.xz | |
libata: move generic hardreset code from sata_sff_hardreset() to sata_link_hardreset()
sata_sff_hardreset() contains link readiness wait logic which isn't
SFF specific. Move that part into sata_link_hardreset(), which now
takes two more parameters - @online and @check_ready. Both are
optional. The former is out parameter for link onlineness after
reset. The latter is used to wait for link readiness after hardreset.
Users of sata_link_hardreset() is updated to use new funtionality and
ahci_hardreset() is updated to use sata_link_hardreset() instead of
sata_sff_hardreset(). This doesn't really cause any behavior change.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/libata.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index 4bbf252..d9ebce2 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -261,6 +261,13 @@ enum { */ ATA_WAIT_AFTER_RESET_MSECS = 150, + /* If PMP is supported, we have to do follow-up SRST. As some + * PMPs don't send D2H Reg FIS after hardreset, LLDs are + * advised to wait only for the following duration before + * doing SRST. + */ + ATA_TMOUT_PMP_SRST_WAIT = 1 * HZ, + /* ATA bus states */ BUS_UNKNOWN = 0, BUS_DMA = 1, @@ -844,7 +851,8 @@ extern int sata_link_debounce(struct ata_link *link, extern int sata_link_resume(struct ata_link *link, const unsigned long *params, unsigned long deadline); extern int sata_link_hardreset(struct ata_link *link, - const unsigned long *timing, unsigned long deadline); + const unsigned long *timing, unsigned long deadline, + bool *online, int (*check_ready)(struct ata_link *)); extern void ata_std_postreset(struct ata_link *link, unsigned int *classes); extern void ata_port_disable(struct ata_port *); |