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

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Message-ID: <0F5B06BAB751E047AB5C87D1F77A778826B3F6BF4C@GVW0547EXC.americas.hpqcorp.net>
Date:	Thu, 7 Aug 2008 19:04:54 +0000
From:	"Miller, Mike (OS Dev)" <Mike.Miller@...com>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
CC:	"scameron@...rdog.cca.cpqcorp.net" <scameron@...rdog.cca.cpqcorp.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
Subject: RE: HP (Compaq) Smart Array 5xxx controller SCSI driver



> -----Original Message-----
> From: FUJITA Tomonori [mailto:fujita.tomonori@....ntt.co.jp]
> Sent: Thursday, July 24, 2008 10:07 AM
> To: Miller, Mike (OS Dev)
> Cc: fujita.tomonori@....ntt.co.jp;
> scameron@...rdog.cca.cpqcorp.net;
> linux-kernel@...r.kernel.org; linux-scsi@...r.kernel.org
> Subject: RE: HP (Compaq) Smart Array 5xxx controller SCSI driver
>
> On Thu, 24 Jul 2008 15:00:00 +0000
> "Miller, Mike (OS Dev)" <Mike.Miller@...com> wrote:
>
> >
> > > > 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.
> >
> > We don't neccesarily want or need to expose the physical
> disks. The only exception is disks that are not part of a
> logical volume. If the disks are part of a logical volume but
> exposed the user may shoot themselves in the foot by
> destroying the firmware metadata.
>
> Oops, sorry, I meant physical tape drives.
>

Tomo,
I patched your driver into the 2.6.27-rc1 kernel. After compiling the driver I get:

[root@...tmonkey linux-2.6]# insmod drivers/scsi/ciss.ko
insmod: error inserting 'drivers/scsi/ciss.ko': -1 Invalid module format

[root@...tmonkey linux-2.6]# gcc --version
gcc (GCC) 4.1.2 20071124 (Red Hat 4.1.2-42)

[root@...tmonkey linux-2.6]# uname -r
2.6.26

I built inside the tree. Any thoughts?

-- mikem
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