[PATCH -tip/apic 0/2] PCI/MSI: Allocate as many multiple-MSIs asrequested

From: Alexander Gordeev
Date: Mon Apr 29 2013 - 00:30:38 EST

Hi Gentleman,

This update will allow to conserve interrupt resources when PCI
device uses multiple-MSI mode and sends lesser power-of-two MSIs.

I have held this off for some time, since there were no such usages
(at least known to me). But recently PLX Technology confirmed they
do have, i.e. their new PEX8796 chip needs 18 MSIs.

The series is against the tip/apic.

Alexander Gordeev (2):
PCI/MSI: Allocate as many multiple-MSIs as requested
x86/MSI: Allocate as many multiple-MSIs as requested

drivers/iommu/irq_remapping.c | 7 ++++---
drivers/pci/msi.c | 10 ++++++++--
include/linux/msi.h | 1 +
3 files changed, 13 insertions(+), 5 deletions(-)


Alexander Gordeev
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