The spec calls this the status pipe.  While it is used to receive sense IUs,
it is also used to receive other IUs, so this can be confusing.
Reported-by: NLuben Tuikov <ltuikov@yahoo.com>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The IUs are not being fully initialised by the driver (due to the reserved
space).  Since we should be zeroing reserved fields, use kzalloc to do
it for us.
Reported-by: NLuben Tuikov <ltuikov@yahoo.com>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add a comment to the Sense IU data structure that it's also used for Read
Ready and Write Ready.  Remove the 'service response' element since it's
gone from the current draft (04).
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

USB Attached SCSI is a new protocol specified jointly by the SCSI T10
committee and the USB Implementors Forum.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
[mina86@mina86.com: updated to use new USB_ prefix]
Signed-off-by: NMichal Nazarewicz <mina86@mina86.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>