netdev - Re: [TG3]: Workaround MSI bug on 5714/5780.

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Message-Id: <20070906.040235.71121480.davem@davemloft.net>
Date:	Thu, 06 Sep 2007 04:02:35 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mchan@...adcom.com
Cc:	netdev@...r.kernel.org, andy@...yhouse.net
Subject: Re: [TG3]: Workaround MSI bug on 5714/5780.

From: "Michael Chan" <mchan@...adcom.com>
Date: Wed, 05 Sep 2007 13:07:08 -0700

> [TG3]: Workaround MSI bug on 5714/5780.
> 
> A hardware bug was revealed after a recent PCI MSI patch was made to
> always disable legacy INTX when enabling MSI.  The 5714/5780 chips
> will not generate MSI when INTX is disabled, causing MSI failure
> messages to be reported, and another patch was made to workaround the
> problem by disabling MSI on ServerWorks HT1000 bridge chips commonly
> found with the 5714.
> 
> We workaround this chip bug by enabling INTX after we enable MSI and
> after we resume from suspend.
> 
> Update version to 3.81.
> 
> This problem was discovered by David Miller.
> 
> Signed-off-by: Michael Chan <mchan@...adcom.com>

Thanks a lot Michael, I'll apply this and work on reverting that
incorrect MSI chipset quirk too.
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