linux-kernel - Re: HP (Compaq) Smart Array 5xxx controller SCSI driver

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Message-Id: <20080724224438B.fujita.tomonori@lab.ntt.co.jp>
Date:	Thu, 24 Jul 2008 22:44:03 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	scameron@...rdog.cca.cpqcorp.net
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, mike.miller@...com
Subject: Re: HP (Compaq) Smart Array 5xxx controller SCSI driver

On Thu, 24 Jul 2008 08:30:12 -0500
scameron@...rdog.cca.cpqcorp.net wrote:

> On Thu, Jul 24, 2008 at 10:32:45AM +0900, FUJITA Tomonori wrote:
> > CC'ed linux-scsi, why did you drop it?
> 
> You mean my SCSI cciss driver?  For a few reasons:

Ah, I just meant that you dropped linux-scsi mailing list in the
previous mail though I sent my first RFC mail to linux-kernel and
linux-scsi.


> With help from udev it is less disruptive, but I'm still unsure
> about how smoothly such a change will fit in with the installation 
> process of various distributions.

They need to make sure that udev cciss rules match with the kernel
configuration but I don't think it's difficult.


> As for the patches I mentioned which were previously ignored
> for improving how the current cciss SCSI code handled hot 
> plogging, if you're curious about that, check here:
> 
> http://marc.info/?l=linux-scsi&m=120213565000426&w=4
> 
> A change like that becomes more important if logical drives
> are exposed through the scsi layer.

We need to think about the best way to map (expose) logical and
physical drivers to SCSI luns. As I wrote before, I'm interested in
how HP SCSI driver does.
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