On Sat, 14 Jun 97 14:54:20 -0700 
 "Chris G. Demetriou" <cgd@pa.dec.com> wrote:

 > A relatively short, special cased, code path.  However, it's still not
 > particularly short, in the case of SCSI including paths through each of:
 > 
 > 	scsi disk driver dump code
 > 	scsi middle layer polling-mode code
 > 	scsi hardware driver polling-mode code
 > 
 > right?

To pick nits, the middle layer is more-or-less bypassed in the scsi disk
dump code; the controller's scsi_cmd entry point is called directly with
a statically allocated xfer structure.

 > There's no reason a special-case path for NFS couldn't be used, as
 > well.  of course, to do it, you'd need polling-mode to be implemented
 > in the ethernet drivers...

No, I agree... but it's a lot of work to get there...

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
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