diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2014-06-30 11:04:21 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-08-06 18:07:33 +0100 |
| commit | 27bbd86f9319dbeeb588b8f43fe0ac241ad336ba (patch) | |
| tree | 6dff44ce290fbdca04f458b836cb97ab03b54cdf /include | |
| parent | 949ff4d69cf2497e9a0b1302979818cd944af02b (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>
[bwh: Backported to 3.2:
- Adjust context
- Use sd_printk() not sd_first_printk()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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..88413e9d80b5 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 3152cc3f0e9f..377ba61cf229 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -151,6 +151,7 @@ struct scsi_device { 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 */ |