Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756145Ab3JBSN2 (ORCPT ); Wed, 2 Oct 2013 14:13:28 -0400 Received: from 221-186-24-89.in-addr.arpa ([89.24.186.221]:27447 "EHLO dhcp-26-207.brq.redhat.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1756008Ab3JBSNF (ORCPT ); Wed, 2 Oct 2013 14:13:05 -0400 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Bjorn Helgaas , Ralf Baechle , Michael Ellerman , Benjamin Herrenschmidt , Martin Schwidefsky , Ingo Molnar , Tejun Heo , Dan Williams , Andy King , Jon Mason , Matt Porter , linux-pci@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux390@de.ibm.com, linux-s390@vger.kernel.org, x86@kernel.org, linux-ide@vger.kernel.org, iss_storagedev@hp.com, linux-nvme@lists.infradead.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, e1000-devel@lists.sourceforge.net, linux-driver@qlogic.com, Solarflare linux maintainers , "VMware, Inc." , linux-scsi@vger.kernel.org Subject: [PATCH RFC 34/77] ioat: Update MSI/MSI-X interrupts enablement code Date: Wed, 2 Oct 2013 12:48:50 +0200 Message-Id: <63caad476ca6b7f3481d5512febcb4ef3db72209.1380703263.git.agordeev@redhat.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1368 Lines: 44 As result of recent re-design of the MSI/MSI-X interrupts enabling pattern this driver has to be updated to use the new technique to obtain a optimal number of MSI/MSI-X interrupts required. Signed-off-by: Alexander Gordeev --- drivers/dma/ioat/dma.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c index acee3b2..b352ee6 100644 --- a/drivers/dma/ioat/dma.c +++ b/drivers/dma/ioat/dma.c @@ -915,15 +915,19 @@ int ioat_dma_setup_interrupts(struct ioatdma_device *device) msix: /* The number of MSI-X vectors should equal the number of channels */ + err = pci_msix_table_size(pdev); + if (err < 0) + goto msi; + if (err < device->common.chancnt) + goto msix_single_vector; + msixcnt = device->common.chancnt; for (i = 0; i < msixcnt; i++) device->msix_entries[i].entry = i; err = pci_enable_msix(pdev, device->msix_entries, msixcnt); - if (err < 0) + if (err) goto msi; - if (err > 0) - goto msix_single_vector; for (i = 0; i < msixcnt; i++) { msix = &device->msix_entries[i]; -- 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/