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>
---
The last message was missing '\n'. Other than that, identical patch.
libata-core.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
Index: work/drivers/scsi/libata-core.c
===================================================================
--- work.orig/drivers/scsi/libata-core.c 2006-04-02 20:38:21.000000000 +0900
+++ work/drivers/scsi/libata-core.c 2006-04-02 20:38:21.000000000 +0900
@@ -2585,6 +2585,9 @@ 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)
@@ -2600,10 +2603,20 @@ 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\n",
+ ap->id);
+ ssleep(5);
+
rc = ata_do_reset(ap, softreset, postreset, 0, classes);
+ }
done:
if (rc == 0 && classes[0] == ATA_DEV_UNKNOWN)
-
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