If a target port is in ALUA 'standby' or 'transitioning' state it
might not need to respond to a 'READ CAPACITY' command. So fixup
the initialization for these cases.
Signed-off-by: Hannes Reinecke <h...@suse.de>
---
drivers/scsi/sd.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3b2fcb4..03fdfa9 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1981,6 +1981,16 @@ static int read_capacity_16(struct scsi_disk *sdkp,
struct scsi_device *sdp,
* give it one more chance */
if (--reset_retries > 0)
continue;
+ if (sense_valid &&
+ sshdr.sense_key == NOT_READY &&
+ sshdr.asc == 0x04 && sshdr.ascq == 0x0a)
+ /* Target port in transition */
+ return 0;
+ if (sense_valid &&
+ sshdr.sense_key == NOT_READY &&
+ sshdr.asc == 0x04 && sshdr.ascq == 0x0b)
+ /* Target port in standy state */
+ return 0;
}
retries--;
@@ -2063,6 +2073,16 @@ static int read_capacity_10(struct scsi_disk *sdkp,
struct scsi_device *sdp,
* give it one more chance */
if (--reset_retries > 0)
continue;
+ if (sense_valid &&
+ sshdr.sense_key == NOT_READY &&
+ sshdr.asc == 0x04 && sshdr.ascq == 0x0a)
+ /* Target port in transition */
+ return 0;
+ if (sense_valid &&
+ sshdr.sense_key == NOT_READY &&
+ sshdr.asc == 0x04 && sshdr.ascq == 0x0b)
+ /* Target port in standy state */
+ return 0;
}
retries--;
@@ -2177,6 +2197,8 @@ got_data:
sector_size = 512;
sd_printk(KERN_NOTICE, sdkp, "Sector size 0 reported, "
"assuming 512.\n");
+ if (!sdkp->physical_block_size)
+ sdkp->physical_block_size = sector_size;
}
if (sector_size != 512 &&
--
1.8.5.2
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