Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752442AbaFJNJj (ORCPT ); Tue, 10 Jun 2014 09:09:39 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43478 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752348AbaFJNJf (ORCPT ); Tue, 10 Jun 2014 09:09:35 -0400 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , linux-doc@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, x86@kernel.org, xen-devel@lists.xenproject.org, iommu@lists.linux-foundation.org, linux-ide@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH 0/3] Add pci_enable_msi_partial() to conserve MSI-related resources Date: Tue, 10 Jun 2014 15:10:29 +0200 Message-Id: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add new pci_enable_msi_partial() interface and use it to conserve on othewise wasted interrupt resources. AHCI driver is the first user which would conserve on 10 out of 16 unused MSI vectors on some Intel chipsets. Cc: linux-doc@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: x86@kernel.org Cc: xen-devel@lists.xenproject.org Cc: iommu@lists.linux-foundation.org Cc: linux-ide@vger.kernel.org Cc: linux-pci@vger.kernel.org Alexander Gordeev (3): PCI/MSI: Add pci_enable_msi_partial() PCI/MSI/x86: Support pci_enable_msi_partial() AHCI: Use pci_enable_msi_partial() to conserve on 10/16 MSIs Documentation/PCI/MSI-HOWTO.txt | 36 ++++++++++++++-- arch/mips/pci/msi-octeon.c | 2 +- arch/powerpc/kernel/msi.c | 4 +- arch/s390/pci/pci.c | 2 +- arch/x86/include/asm/pci.h | 3 +- arch/x86/include/asm/x86_init.h | 3 +- arch/x86/kernel/apic/io_apic.c | 2 +- arch/x86/kernel/x86_init.c | 4 +- arch/x86/pci/xen.c | 9 +++- drivers/ata/ahci.c | 4 +- drivers/iommu/irq_remapping.c | 10 ++-- drivers/pci/msi.c | 83 ++++++++++++++++++++++++++++++++++----- include/linux/msi.h | 5 +- include/linux/pci.h | 3 + 14 files changed, 134 insertions(+), 36 deletions(-) -- 1.7.7.6 -- 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/