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

[Luben Tuikov <luben_tuikov@adaptec.com>]

On 09/30/05 16:45, James Bottomley wrote:
> On Fri, 2005-09-30 at 14:34 -0400, Luben Tuikov wrote:
> 
>>James, Linus, can we have this driver in the kernel now, please?
> 
> 
> A while ago I told you that if you could show that the transport class
> abstraction could not support both the aic94xx and LSI SAS cards then we

I have, by example and by spec.  They both use two different
and distinct architectures.

Now _you_ have decided that this isn't the case, simply because
you want to prove your own idea.  (which breaks SAM layering)

I think I explained the similarity of the SAS Transport Layer
to *USB and SBP*.

As I said: everyone wants a pice of the SAS code.
You do too.

I'm sure you'll do whatever humanly possible to show
that _your_ idea can be applied: you can do this now:
just use a big if () { ... } else { ... } statement and
you're done.

Furthermore I do not see the reasons to umbrella both
"aic94xx and LSI cards" when they are _completely different_
in architecture: MPT and open transport (ala USB Storage and SBP).

> could look at doing SAS differently.  Since then you have asserted many
> times that a transport class could not work for the aic94xx (mostly by
> making inaccurate statements about what the transport class abstraction
> is) but have never actually provided any evidence for your assertion.

The code is here:
http://linux.adaptec.com/sas/

>>Now to things more pertinent, which I'm sure people are interested in:
>>
>>Jeff has been appointed to the role of integrating the SAS code
>>with the Linux SCSI _model_, with James Bottomley's "transport
>>attributes".
>>So you can expect more patches from him.
> 
> So very soon now, with proof by code, we shall have confirmation or
> negation of that assertion.  I'll wait quietly for this to happen, and I
> would suggest you do the same.

I just thought it was only fare to the rest of the community
to know how far the politics has escalated.

Everyone wants a piece of the SAS code.

	Luben

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