[PATCH 08/14] libata-link: implement link->reset_tries

[Tejun Heo <htejun@gmail.com>]

Make reset_tries per-link property.  PM links will use different value
from host links.

---

 drivers/scsi/libata-core.c |    1 +
 drivers/scsi/libata-eh.c   |    2 +-
 include/linux/libata.h     |    2 ++
 3 files changed, 4 insertions(+), 1 deletions(-)

c7399562f682d7f2684a5f8fa95fc74583907031
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index de0f56f..11405a4 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -5116,6 +5116,7 @@ static void ata_link_init(struct ata_por
 	link->pmp = pmp;
 	link->active_tag = ATA_TAG_POISON;
 	link->hw_sata_spd_limit = UINT_MAX;
+	link->reset_tries = ATA_EH_RESET_TRIES;
 
 	ata_link_for_each_dev(dev, link) {
 		dev->link = link;
diff --git a/drivers/scsi/libata-eh.c b/drivers/scsi/libata-eh.c
index 06e6523..97a1b4d 100644
--- a/drivers/scsi/libata-eh.c
+++ b/drivers/scsi/libata-eh.c
@@ -1375,7 +1375,7 @@ static int ata_eh_reset(struct ata_link 
 {
 	struct ata_eh_context *ehc = &link->eh_context;
 	unsigned int *classes = ehc->classes;
-	int tries = ATA_EH_RESET_TRIES;
+	int tries = link->reset_tries;
 	int verbose = !(link->ap->flags & ATA_FLAG_LOADING);
 	unsigned int action;
 	ata_reset_fn_t reset;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 61fddbf..8feaf04 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -479,6 +479,8 @@ struct ata_link {
 	unsigned int		hw_sata_spd_limit;
 	unsigned int		sata_spd_limit;
 
+	int			reset_tries;
+
 	/* record runtime error info, protected by host_set lock */
 	struct ata_eh_info	eh_info;
 	/* EH context */
-- 
1.2.4