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authorTejun Heo <htejun@gmail.com>2008-04-08 01:46:56 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:25 -0400
commit45db2f6c95eee7c6622ea1b3edb9abafba58e3ab (patch)
tree1c57efcf3e118b177dd7c9c1070b8af70694aff3 /drivers/ata/libata-core.c
parent2a0c15ca39f5881aa1b472ca856bb7a2e584ece7 (diff)
libata: move link onlineness check out of softreset methods
Currently, SATA softresets should do link onlineness check before actually performing SRST protocol but it doesn't really belong to softreset. This patch moves onlineness check in softreset to ata_eh_reset() and ata_eh_followup_srst_needed() to clean up code and help future sata_mv changes which need clear separation between SCR and TF accesses. sata_fsl is peculiar in that its softreset really isn't softreset but combination of hardreset and softreset. This patch adds dummy private ->prereset to keep the current behavior but the driver really should implement separate hard and soft resets and return -EAGAIN from hardreset if it should be follwed by softreset. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
-rw-r--r--drivers/ata/libata-core.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 3401248180c9..f60988f5e01b 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3541,6 +3541,10 @@ int ata_std_prereset(struct ata_link *link, unsigned long deadline)
"link for reset (errno=%d)\n", rc);
}
+ /* no point in trying softreset on offline link */
+ if (ata_link_offline(link))
+ ehc->i.action &= ~ATA_EH_SOFTRESET;
+
return 0;
}