diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2014-06-30 11:04:21 -0400 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2015-04-14 17:33:56 +0800 |
| commit | ef978a9da7dcda0f159a9ddf9136be389333cf17 (patch) | |
| tree | 997e5388a1bdf1e2866b4eb6a43f61a12e5ce6ef /include | |
| parent | 89f1d011748d70b830f452bba6e7e83666123e90 (diff) | |
usb-storage/SCSI: Add broken_fua blacklist flag
commit b14bf2d0c0358140041d1c1805a674376964d0e0 upstream.
Some buggy JMicron USB-ATA bridges don't know how to translate the FUA
bit in READs or WRITEs. This patch adds an entry in unusual_devs.h
and a blacklist flag to tell the sd driver not to use FUA.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Michael Büsch <m@bues.ch>
Tested-by: Michael Büsch <m@bues.ch>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb_usual.h | 4 | ||||
| -rw-r--r-- | include/scsi/scsi_device.h | 1 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index 17df3600bcef..f2000e9804ea 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h @@ -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 }; diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index ba9698852321..d2f5f44d50f8 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -153,6 +153,7 @@ struct scsi_device { unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */ 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 */ |