From patchwork Wed Oct 2 10:49:30 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 280125 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2DB962C1E65 for ; Thu, 3 Oct 2013 04:06:10 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755265Ab3JBSFr (ORCPT ); Wed, 2 Oct 2013 14:05:47 -0400 Received: from 221-186-24-89.in-addr.arpa ([89.24.186.221]:27352 "EHLO dhcp-26-207.brq.redhat.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754370Ab3JBSFq (ORCPT ); Wed, 2 Oct 2013 14:05:46 -0400 Received: from dhcp-26-207.brq.redhat.com (localhost [127.0.0.1]) by dhcp-26-207.brq.redhat.com (8.14.5/8.14.5) with ESMTP id r92B0VBQ002789; Wed, 2 Oct 2013 13:00:31 +0200 Received: (from agordeev@localhost) by dhcp-26-207.brq.redhat.com (8.14.5/8.14.5/Submit) id r92B0T7M002788; Wed, 2 Oct 2013 13:00:29 +0200 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 , stable@vger.kernel.org, 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 74/77] vmxnet3: Limit number of rx queues to 1 if per-queue MSI-Xs failed Date: Wed, 2 Oct 2013 12:49:30 +0200 Message-Id: X-Mailer: git-send-email 1.7.7.6 In-Reply-To: References: Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Signed-off-by: Alexander Gordeev --- drivers/net/vmxnet3/vmxnet3_drv.c | 16 ++++++++-------- 1 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 3df7f32..00dc0d0 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -2814,12 +2814,14 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) err = vmxnet3_acquire_msix_vectors(adapter, adapter->intr.num_intrs); - /* If we cannot allocate one MSIx vector per queue - * then limit the number of rx queues to 1 - */ - if (err == VMXNET3_LINUX_MIN_MSIX_VECT) { - if (adapter->share_intr != VMXNET3_INTR_BUDDYSHARE - || adapter->num_rx_queues != 1) { + if (!err) { + /* If we cannot allocate one MSIx vector per queue + * then limit the number of rx queues to 1 + */ + if ((adapter->intr.num_intrs == + VMXNET3_LINUX_MIN_MSIX_VECT) && + ((adapter->share_intr != VMXNET3_INTR_BUDDYSHARE) || + (adapter->num_rx_queues != 1))) { adapter->share_intr = VMXNET3_INTR_TXSHARE; netdev_err(adapter->netdev, "Number of rx queues : 1\n"); @@ -2829,8 +2831,6 @@ vmxnet3_alloc_intr_resources(struct vmxnet3_adapter *adapter) } return; } - if (!err) - return; /* If we cannot allocate MSIx vectors use only one rx queue */ dev_info(&adapter->pdev->dev,