bge driver and MSI
Julian Elischer
julian at elischer.org
Tue Dec 8 01:51:03 UTC 2009
David Christensen wrote:
>> Can the bge driver use more than one MSI message? If
>> possible, what the advantage of this on a SMP system (better
>> CPU distribution on interrupts?)?
>>
[...]
>> --
>
> MSI is broken on this device (actually all PCI/PCI-X devices
> in the 57XX family). The interrupt will be asserted as
> expected but masking the interrupt does not work. For those
> newer 1Gb PCIe devices that do work correctly with MSI, only
> a single message is actually supported.
>
> Dave
Might be a good thing of someone would work up a man page paragraph to
this effect.
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