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authorTejun Heo <htejun@gmail.com>2008-04-07 22:47:19 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:22 -0400
commit9dadd45b24145d6aee2fabb28d7aef972301892b (patch)
treec97c323e2edd400bc94eaceddf20f84e9a6da005 /include/linux/libata.h
parenta89611e8489ac24f371c9fd6fef6605b170b16ba (diff)
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/linux/libata.h')
-rw-r--r--include/linux/libata.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 4bbf2524e473..d9ebce2bf5e7 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 *);