On Mon, Mar 04, 2024 at 11:16:56AM +0800, Tom Hu wrote: > The UAS mode of BRAIN USB_HDD is reported to fail to work on several > platforms with the following error message, then after re-connecting the > device will be offlined and not working at all. > > [ 622.518442][ 2] sd 8:0:0:0: [sda] tag#17 uas_eh_abort_handler 0 uas-tag 18 > inflight: CMD > [ 622.527575][ 2] sd 8:0:0:0: [sda] tag#17 CDB: Write(10) 2a 00 03 6f 88 00 00 > 04 00 00 > [ 622.536330][ 2] sd 8:0:0:0: [sda] tag#0 uas_eh_abort_handler 0 uas-tag 1 > inflight: CMD > [ 622.545266][ 2] sd 8:0:0:0: [sda] tag#0 CDB: Write(10) 2a 00 07 44 1a 88 00 > 00 08 00 > > These disks have a broken uas implementation, the tag field of the status > iu-s is not set properly, so we need to fall-back to usb-storage. > > --- > v2: remove junk information from patch. No, the junk information is still present. > > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> And I have to rescind this Acked-by. > Signed-off-by: Hu Xiaoying <huxiaoying@xxxxxxxxxx> > --- > drivers/usb/storage/unusual_uas.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h > index 1f8c9b16a0fb..98b7ff2c76ba 100644 > --- a/drivers/usb/storage/unusual_uas.h > +++ b/drivers/usb/storage/unusual_uas.h > @@ -83,6 +83,13 @@ UNUSUAL_DEV(0x0bc2, 0x331a, 0x0000, 0x9999, > USB_SC_DEVICE, USB_PR_DEVICE, NULL, > US_FL_NO_REPORT_LUNS), > > +/* Reported-by: Tom Hu <huxiaoying@xxxxxxxxxx> */ > +UNUSUAL_DEV(0x1234, 0x1234, 0x0000, 0x9999, The junk information is the "0x1234, 0x1234" values. And if you try removing it from the patch, you'll find that the patch doesn't work. > + "Brain", > + "External HDD", > + USB_SC_DEVICE, USB_PR_DEVICE, NULL, > + US_FL_IGNORE_UAS), Fortunately you can get the same effect by setting a module parameter for usb-storage. For example, in /etc/modprobe.d/brain.conf: # Brain USB HDD doesn't work in UAS mode (tag field not set properly) options usb_storage quirks=1234:1234:u Alan Stern
