Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751808Ab3D2Ead (ORCPT ); Mon, 29 Apr 2013 00:30:33 -0400 Received: from mx1.redhat.com ([209.132.183.28]:61392 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751587Ab3D2Eab (ORCPT ); Mon, 29 Apr 2013 00:30:31 -0400 Date: Mon, 29 Apr 2013 06:31:45 +0200 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: x86@kernel.org, linux-pci@vger.kernel.org, Suresh Siddha , Yinghai Lu , Joerg Roedel , Jan Beulich , Ingo Molnar , Bjorn Helgaas Subject: [PATCH -tip/apic 0/2] PCI/MSI: Allocate as many multiple-MSIs as requested Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1002 Lines: 33 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(-) -- 1.7.7.6 -- Regards, Alexander Gordeev agordeev@redhat.com -- 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/