| commit | dae51546b6564b06cbae4191d4f2dee7136be3c1 | |
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
| Mon, 19 Dec 2011 16:06:08 +0000 (19 17:06 +0100) | ||
| committer | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
| Thu, 22 Dec 2011 09:14:49 +0000 (22 10:14 +0100) | ||
| tree | 6d5654cb4c00546245bdb8621a7a0d647ab9bb36 | treesnapshot (tar.gz zip) |
| parent | 96c1eb9873caffc507a1951c36b43fdcf3ddeff3 | commitdiff |
usb/uas: use unique tags for all LUNs
I observed that on a device with multiple LUNs UAS was re-using the same
tag number for requests which were issued at the same time to both LUNs.
This patch uses scsi_init_shared_tag_map() to use unique tags for all
LUNs. With this patch I haven't seen the same tag number during the init
sequence anymore. Tag 1 is used for devices which do not adverise
command queueing.
This patch initilizes the queue before adding the scsi host like the
other two user in tree.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
I observed that on a device with multiple LUNs UAS was re-using the same
tag number for requests which were issued at the same time to both LUNs.
This patch uses scsi_init_shared_tag_map() to use unique tags for all
LUNs. With this patch I haven't seen the same tag number during the init
sequence anymore. Tag 1 is used for devices which do not adverise
command queueing.
This patch initilizes the queue before adding the scsi host like the
other two user in tree.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
| drivers/usb/storage/uas.c | diffblobblamehistory |