PCI: Fix IRQ swizzling for ARI-enabled devices

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For many purposes, including interrupt-swizzling, devices with ARI
enabled behave as if they have one device (number 0) and 256 functions.
This probably hasn't bitten us in practice because all ARI devices I've
seen are also IOV devices, and IOV devices are required to use MSI.
This isn't guaranteed, and there are legitimate reasons to use ARI
without IOV, and hence potentially use pin-based interrupts.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

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Matthew Wilcox 2009-07-01 14:24:30 -07:00 • committed by Jesse Barnes

parent 944c54e7fc

commit 46b952a3c3

1 changed files with 11 additions and 2 deletions

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drivers/pci/pci.c

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