Re: I request inclusion of SAS Transport Layer and AIC-94xx into the kernel

[Luben Tuikov <luben_tuikov@adaptec.com>]

On 09/30/05 19:57, Jeff Garzik wrote:
> Luben Tuikov wrote:
> 
>>MPT-based drivers + James Bottomley's "transport attributes"
> 
> 
> You continue to fail to see that a transport class is more than just 
> transport attributes.
> 
> You continue to fail to see that working on transport class support IS a 
> transport layer, that includes management.
> 
> Is you don't understand this fundamental stuff, how can we expect you to 
> get it right?

>From what I see, because of its *layering* position
JB's "transport attributes" cannot satisfy open transport.

The reason is that MPT-based drivers indeed do need host template
in the LLDD.

Open Transport (SBP/USB/SAS) do not, since the chip is only
an interface to the transport.

The host template is implemented by a transport layer,
say USB Storage or the SAS Transport Layer.

This allows you to do great things, like layer
intersection.

	Luben
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