linux-kernel - Re: sata_nv times out for BD-ROM iHOS104-08

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Date:	Thu, 3 Jun 2010 13:40:56 -0400
From:	Gregory Moyer <raven2k@...hr.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: sata_nv times out for BD-ROM iHOS104-08

> Hello,
>
> Alright, I don't have access to mcp51 but tested with mcp55 and could
> reproduce similar problem. It seems nIEN on mcp55 is stuck once set
> and iHOS104 doesn't set I on D2H FIS if nIEN is set on command H2D
> FIS, which the SATA standard specifically mandates not to do. So, the
> combination of buggy mcp55 ctl handling + buggy iHOS104 nIEN handling
> leads to nobody raising interrupt.
>
> The problem is that the problem I'm seeing is not completely identical
> to the one you're seeing. The difference could be coming from
> different firmware version on the drives or different controllers.
>
> Anyways, can you please give a shot at the attached patch?
>
> Thanks.
>
> --
> tejun


I tried your latest patch against 2.6.32 with my iHOS104 and MCP55 and
it works perfectly. I can now use the drive normally and I do not see
any failure/reset messages in the log. Thanks!
- Greg
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