[t13] T10/04-262r1

Pat LaVarre p.lavarre at IEEE.org
Tue Aug 17 13:12:26 PDT 2004

* From the T10 Reflector (t10 at t10.org), posted by:
* Pat LaVarre <p.lavarre at ieee.org>
> Consider creating an ATA
> pass-through mechanism for standard commands and a separate ATA
> pass-through for vendor unique commands.
> ...
> For
> standard defined ATA commands each field has a well-defined set of
> values or is not applicable.

Help, I don't exactly understand.

I do like the idea of tuning the design for the fast path of device and 
host likely in agreement over how many bytes to copy which way and in 
agreement that those bytes make up a series of whole 0.5 KiB blocks.

But pass thru of more than was standard is pass thru of newly standard 
and vendor-specific, not just pass thru of vendor-specific.  That is, 
an old device thinks that any newly standard command is reserved, 
obsolete, or vendor-specific.

Tell me again how the new device benefits by the new host saying the 
passed thru command is now standard?

Pat LaVarre

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