From patchwork Wed Oct 2 10:49:15 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 2975991 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AA5F8BFF0B for ; Wed, 2 Oct 2013 16:40:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7FDA320435 for ; Wed, 2 Oct 2013 16:40:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6404A2043C for ; Wed, 2 Oct 2013 16:40:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753634Ab3JBQjv (ORCPT ); Wed, 2 Oct 2013 12:39:51 -0400 Received: from 221-186-24-89.in-addr.arpa ([89.24.186.221]:24700 "EHLO dhcp-26-207.brq.redhat.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1753256Ab3JBQjt (ORCPT ); Wed, 2 Oct 2013 12:39:49 -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 r92AxGuu002714; Wed, 2 Oct 2013 12:59:16 +0200 Received: (from agordeev@localhost) by dhcp-26-207.brq.redhat.com (8.14.5/8.14.5/Submit) id r92AxFne002707; Wed, 2 Oct 2013 12:59:15 +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 , 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 59/77] qla2xxx: Update MSI/MSI-X interrupts enablement code Date: Wed, 2 Oct 2013 12:49:15 +0200 Message-Id: <54f6b89372f51cd27a6adf6ecc91b8bf6bb5ba74.1380703263.git.agordeev@redhat.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: References: Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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/scsi/qla2xxx/qla_isr.c | 18 +++++++++++------- 1 files changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index df1b30b..6c11ab9 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2836,16 +2836,20 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) for (i = 0; i < ha->msix_count; i++) entries[i].entry = i; - ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); - if (ret) { + ret = pci_msix_table_size(ha->pdev); + if (ret < 0) { + goto msix_failed; + } else { if (ret < MIN_MSIX_COUNT) goto msix_failed; - ql_log(ql_log_warn, vha, 0x00c6, - "MSI-X: Failed to enable support " - "-- %d/%d\n Retry with %d vectors.\n", - ha->msix_count, ret, ret); - ha->msix_count = ret; + if (ret < ha->msix_count) { + ql_log(ql_log_warn, vha, 0x00c6, + "MSI-X: Failed to enable support " + "-- %d/%d\n Retry with %d vectors.\n", + ha->msix_count, ret, ret); + ha->msix_count = ret; + } ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); if (ret) { msix_failed: