Error handling of SERIAL NUMBER probe during device probing

[Nate Lawson]

On Fri, 9 May 2003, Chuck McCrobie wrote:
> I have a Powerfile Firewire device.  It contains two
> DVD-RAM drives, a TOSHIBA and a PANASONIC.  One of the
> drives does not support the probe for SERIAL NUMBER,
> specifically the following command:
>
>  sbp0:0:1 XPT_SCSI_IO: cmd: 12 21 80 00 ff 00 00 00 00
> 00, flags: 0x40, 6b cmd/255b data/18b sense
>  sbp0:0:1 SCSI status 2 sfmt 0 valid 0 key 5 code 24
> qlfr 0 len 3
>
> I suppose I need a quirk entry in cam_xpt.c for
> CAM_QUIRK_NOSERIAL, but shouldn't the serial number
> probe simply give up on ILLEGAL_COMMAND (key=5,
> code=24 => INVALID FIELD IN CDB).

Something is retransmitting the command, possibly the firewire driver
since CAM doesn't retransmit for that particular error.  The drive appears
to be responding correctly.

-Nate