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Message-ID: <4B6A3DED.6060708@kernel.org> Date: Thu, 04 Feb 2010 12:24:29 +0900 From: Tejun Heo <tj@...nel.org> To: Grant Grundler <grundler@...gle.com> CC: Chandra Shekhar Sah <edu4madh@...il.com>, linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org Subject: Re: port multiplier problem On 02/04/2010 11:37 AM, Grant Grundler wrote: > I had two questions on that thread that never got answered: > http://markmail.org/message/snpekoj4qexrslk5 > > | How can we find out if anyone has the SEMB properly wired up? > | Would it be hard to make libata aware of "SEMB port not responding" case? > | ie if the SEMB port times out or has no link, reduce the port count of > | the sil3726 PMP by one. > | > | Maybe add a "enable_sil24_semb" flag to libata? > | (avoid checking unless someone asks for it). I hate magic flags but also > | don't want to subject most people to the timeout delay. > > I (or Gwendal) can post a patch (and lightly test) for any of the above. > Just need to get some guidance so we don't waste our time. It's not really sil24 tho. But anyways, I think we can just disable them altogether. It's not like they have ever worked. Just limiting both 3726 and 4726 to 5 ports should be fine. That said, I'm not quite sure this is relevant to the reported problem but it's worth a shot. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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