Some devices react badly if resets are performed back-to-back. Give
devices some time to breath and tell user that we're taking a nap.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/libata-core.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
648928e9d46f4d2d8426d83614c101c4a41d789e
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index f8ee314..dfa2b36 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -2577,6 +2577,9 @@ int ata_drive_probe_reset(struct ata_por
rc = ata_do_reset(ap, softreset, postreset, 0, classes);
if (rc == 0 && classes[0] != ATA_DEV_UNKNOWN)
goto done;
+ printk(KERN_INFO "ata%u: softreset failed, will try "
+ "hardreset in 5 secs\n", ap->id);
+ ssleep(5);
}
if (!hardreset)
@@ -2592,10 +2595,20 @@ int ata_drive_probe_reset(struct ata_por
if (ata_down_sata_spd_limit(ap))
goto done;
+
+ printk(KERN_INFO "ata%u: hardreset failed, will retry "
+ "in 5 secs\n", ap->id);
+ ssleep(5);
}
- if (softreset)
+ if (softreset) {
+ printk(KERN_INFO "ata%u: hardreset succeeded without "
+ "classification, will retry softreset in 5 secs",
+ ap->id);
+ ssleep(5);
+
rc = ata_do_reset(ap, softreset, postreset, 0, classes);
+ }
done:
if (rc == 0 && classes[0] == ATA_DEV_UNKNOWN)
--
1.2.4
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