On Thu, Feb 15, 2001 at 04:40:35PM -0500, Eric Youngdale wrote:
> My preference is that 16-byte commands not even reach low-level drivers
> that are not prepared to deal with them. It would be a little more work to
> get it set up, but on the whole it would be safer, esp if we are considering
> this for 2.4.
>
> A cleaner solution would probably be to patch each and every driver to
> reject SCSI-III commands, and then remove the patch for drivers that are
> known to accept 16-byte commands. Yech - the low-level driver count is now
> hovering around 80.
>
> Also keep in mind that we as of yet have no record in the Scsi_Host
> structure to say whether a host is SCSI-III or not.
Hrm... how about something like this:
We add a field to the Scsi_Host structure which would indicate if they are
SCSI-III able. By default, this field will be initialized to 0, indicating
only 12-byte command readyness. The mid-level will reject cmd_len > 12
unless this byte is != 0.
Short, sweet, and to the point. The question is, can we get it in more
sooner than later? I'd really like to get all this integrated for a later
2.4.x kernel.
Matt
--
Matthew Dharm Home: [EMAIL PROTECTED]
Maintainer, Linux USB Mass Storage Driver
What, are you one of those Microsoft-bashing Linux freaks?
-- Customer to Greg
User Friendly, 2/10/1999
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