Hello.
On 3/19/2016 11:59 AM, Hans de Goede wrote:
Commit 64d513ac31bd ("scsi: use host wide tags by default") causes
the scsi-core to queue more cmnds then we can handle on devices with
SCSI core? Commands?
multiple LUNs, limit the qdepth at the scsi-host level instead of
Queue depth?
per slave to fix this.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1315013
Cc: stable@xxxxxxxxxxxxxxx # 4.4.x and 4.5.x
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/usb/storage/uas.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index c90a7e4..b5cb7ab 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
[...]
@@ -932,6 +931,12 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id)
if (result)
goto set_alt0;
+ /*
+ * 1 tag is reserved for untagged commands +
+ * 1 tag to avoid of by one errors in some bridge firmwares
Off by one.
[...]
MBR, Sergei
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