Package: linux-image-3.2.0-4-amd64 Version: 3.2.0 Severity: normal Tags: patch
Please apply a backport of the JMicron USB->SATA quirk fix to 3.2.0 (wheezy). Without this fix certain JMicron USB->SATA bridges are not usable in Debian Wheezy. The fix already is upstream (git b14bf2d0c0358140041d1c1805a674376964d0e0) and in Debian's 3.16.0 kernel (Sid/Jessie). A proposed backport of the fix is attached to this report.
Index: linux-3.2.60/drivers/scsi/sd.c =================================================================== --- linux-3.2.60.orig/drivers/scsi/sd.c 2014-06-09 14:29:18.000000000 +0200 +++ linux-3.2.60/drivers/scsi/sd.c 2014-08-29 20:25:58.000000000 +0200 @@ -2149,7 +2149,10 @@ } sdkp->DPOFUA = (data.device_specific & 0x10) != 0; - if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) { + if (sdp->broken_fua) { + sd_printk(KERN_NOTICE, sdkp, "Disabling FUA\n"); + sdkp->DPOFUA = 0; + } else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) { sd_printk(KERN_NOTICE, sdkp, "Uses READ/WRITE(6), disabling FUA\n"); sdkp->DPOFUA = 0; Index: linux-3.2.60/drivers/usb/storage/scsiglue.c =================================================================== --- linux-3.2.60.orig/drivers/usb/storage/scsiglue.c 2014-06-09 14:29:18.000000000 +0200 +++ linux-3.2.60/drivers/usb/storage/scsiglue.c 2014-08-29 20:33:40.000000000 +0200 @@ -255,6 +255,10 @@ US_FL_SCM_MULT_TARG)) && us->protocol == USB_PR_BULK) us->use_last_sector_hacks = 1; + + /* A few buggy USB-ATA bridges don't understand FUA */ + if (us->fflags & US_FL_BROKEN_FUA) + sdev->broken_fua = 1; } else { /* Non-disk-type devices don't need to blacklist any pages Index: linux-3.2.60/drivers/usb/storage/unusual_devs.h =================================================================== --- linux-3.2.60.orig/drivers/usb/storage/unusual_devs.h 2014-06-09 14:29:18.000000000 +0200 +++ linux-3.2.60/drivers/usb/storage/unusual_devs.h 2014-08-29 20:25:58.000000000 +0200 @@ -1916,6 +1916,13 @@ USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Michael Büsch <m...@bues.ch> */ +UNUSUAL_DEV( 0x152d, 0x0567, 0x0114, 0x0114, + "JMicron", + "USB to ATA/ATAPI Bridge", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_BROKEN_FUA ), + /* Reported by Alexandre Oliva <ol...@lsd.ic.unicamp.br> * JMicron responds to USN and several other SCSI ioctls with a * residue that causes subsequent I/O requests to fail. */ Index: linux-3.2.60/include/linux/usb_usual.h =================================================================== --- linux-3.2.60.orig/include/linux/usb_usual.h 2014-06-09 14:29:18.000000000 +0200 +++ linux-3.2.60/include/linux/usb_usual.h 2014-08-29 20:28:18.000000000 +0200 @@ -64,7 +64,9 @@ US_FLAG(NO_READ_CAPACITY_16, 0x00080000) \ /* cannot handle READ_CAPACITY_16 */ \ US_FLAG(INITIAL_READ10, 0x00100000) \ - /* Initial READ(10) (and others) must be retried */ + /* Initial READ(10) (and others) must be retried */ \ + US_FLAG(BROKEN_FUA, 0x01000000) \ + /* Cannot handle FUA in WRITE or READ CDBs */ \ #define US_FLAG(name, value) US_FL_##name = value , enum { US_DO_ALL_FLAGS }; Index: linux-3.2.60/include/scsi/scsi_device.h =================================================================== --- linux-3.2.60.orig/include/scsi/scsi_device.h 2014-06-09 14:29:18.000000000 +0200 +++ linux-3.2.60/include/scsi/scsi_device.h 2014-08-29 20:32:53.000000000 +0200 @@ -151,6 +151,7 @@ unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */ unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ unsigned is_visible:1; /* is the device visible in sysfs */ + unsigned broken_fua:1; /* Don't set FUA bit */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ struct list_head event_list; /* asserted events */