This is a note to let you know that I've just added the patch titled
usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
to the 5.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-storage-add-unusual-devs-entry-for-vl817-usb-sata-bridge.patch
and it can be found in the queue-5.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5b67b315037250a61861119683e7fcb509deea25 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 24 Jan 2022 15:14:40 -0500
Subject: usb-storage: Add unusual-devs entry for VL817 USB-SATA bridge
MIME-Version: 1.0
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From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
commit 5b67b315037250a61861119683e7fcb509deea25 upstream.
Two people have reported (and mentioned numerous other reports on the
web) that VIA's VL817 USB-SATA bridge does not work with the uas
driver. Typical log messages are:
[ 3606.232149] sd 14:0:0:0: [sdg] tag#2 uas_zap_pending 0 uas-tag 1 inflight: CMD
[ 3606.232154] sd 14:0:0:0: [sdg] tag#2 CDB: Write(16) 8a 00 00 00 00 00 18 0c c9 80 00 00 00 80 00 00
[ 3606.306257] usb 4-4.4: reset SuperSpeed Plus Gen 2x1 USB device number 11 using xhci_hcd
[ 3606.328584] scsi host14: uas_eh_device_reset_handler success
Surprisingly, the devices do seem to work okay for some other people.
The cause of the differing behaviors is not known.
In the hope of getting the devices to work for the most users, even at
the possible cost of degraded performance for some, this patch adds an
unusual_devs entry for the VL817 to block it from binding to the uas
driver by default. Users will be able to override this entry by means
of a module parameter, if they want.
CC: <stable@xxxxxxxxxxxxxxx>
Reported-by: DocMAX <mail@xxxxxxxxxxxxx>
Reported-and-tested-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/Ye8IsK2sjlEv1rqU@xxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/storage/unusual_devs.h | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -2301,6 +2301,16 @@ UNUSUAL_DEV( 0x2027, 0xa001, 0x0000, 0x
USB_SC_DEVICE, USB_PR_DEVICE, usb_stor_euscsi_init,
US_FL_SCM_MULT_TARG ),
+/*
+ * Reported by DocMAX <mail@xxxxxxxxxxxxx>
+ * and Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
+ */
+UNUSUAL_DEV( 0x2109, 0x0715, 0x9999, 0x9999,
+ "VIA Labs, Inc.",
+ "VL817 SATA Bridge",
+ USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+ US_FL_IGNORE_UAS),
+
UNUSUAL_DEV( 0x2116, 0x0320, 0x0001, 0x0001,
"ST",
"2A",
Patches currently in stable-queue which might be from stern@xxxxxxxxxxxxxxxxxxx are
queue-5.16/usb-storage-add-unusual-devs-entry-for-vl817-usb-sata-bridge.patch
queue-5.16/usb-core-fix-hang-in-usb_kill_urb-by-adding-memory-barriers.patch
