From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jesse Barnes <jbarnes@engr.sgi.com>
Subject: Re: SCSI QLA not working on latest *-mm SN2
Date: Tue, 21 Sep 2004 11:58:24 -0400
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To: James Bottomley <James.Bottomley@steeleye.com>
Cc: Grant Grundler <grundler@parisc-linux.org>, Andrew Vasquez <andrew.vasquez@qlogic.com>, pj@sgi.com, SCSI Mailing List <linux-scsi@vger.kernel.org>, mdr@cthulhu.engr.sgi.com, jeremy@cthulhu.engr.sgi.com, djh@cthulhu.engr.sgi.com, Andrew Morton <akpm@osdl.org>

On Tuesday, September 21, 2004 11:41 am, James Bottomley wrote:
> Just to get back to the actual qla2xxx problem.
>
> Do we agree that there are two possible solutions:
>
> 1) Find a safe mmio read to trigger the flush of the posted reset write.
>
> 2) Use a pio write to trigger the reset because we know the reset is
> active as soon as the write returns.
>
> and if so, which one are we going to implement?

or
 3) use a regular write() with an associated pioflush()

For now, (1) is a good option if the driver can do it (I still haven't heard 
if qla2xxx supports this).  I suspect that neither (1) nor (2) is available 
to some device, leaving only udelay() or (3), which I'm working on.

Jesse