Messages in this thread | | | Date | Wed, 15 Feb 2006 00:10:25 +0200 | From | "Michael S. Tsirkin" <> | Subject | Re: AMD 8131 and MSI quirk |
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Quoting r. Kristen Accardi <kristen.c.accardi@intel.com>: > I guess the assumption I made was that if msi is > turned off for a bridge, then all devices under the bridge may not use > msi.
Well, all this is just quirks, so no real rules apply, thats why I thought having 2 bits gives us maximum flexibility.
Specifically for PCXH I see this in code: /* * It's possible for the MSI to get corrupted if shpc and acpi * are used together on certain PXH-based systems. * */
So it seems the issue is device-specific - only affects the bridge itself.
What the code currently does is disable msi for bridge itself but not for the devices behind it. I cant inherit dev->no_msi from parent to child without changing this, and I just assumed this is by design.
Are you saying this is a bug and should be changed?
-- Michael S. Tsirkin Staff Engineer, Mellanox Technologies - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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