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Date:	Fri, 14 Sep 2007 15:33:15 -0700 (PDT)
From:	David Miller <>
Subject: Re: [TG3]: Workaround MSI bug on 5714/5780.

From: "Michael Chan" <>
Date: Fri, 07 Sep 2007 19:26:21 -0700

> [PCI]: Add MSI quirk for ServerWorks HT1000 PCIX bridge.
> This is the fix for the following problem:
> The bnx2 device 5706 complains about MSI not working behind a
> ServerWorks HT1000 PCIX bridge. An earlier commit to fix the problem:
> e3008dedff4bdc96a5f67224cd3d8d12237082a0:
> "PCI: disable MSI by default on systems with Serverworks HT1000 chips"
> was not entirely correct, and has been reverted.
> MSI does not work on the PCIX bus because the BIOS did not set the
> HT_MSI_FLAGS_ENABLE bit in the HyperTransport MSI capability on the
> bridge.  We use the existing quirk_msi_ht_cap() to detect the problem
> and disable MSI in all buses behind it.
> Signed-off-by: Michael Chan <>
> Cc: Anantha Subramanyam <>
> Cc: Naren Sankar <>

Michael, I've queued this and my revert patch into a tree which
I will push to the PCI maintainer for 2.6.24

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