From patchwork Tue Feb 25 21:31:10 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 324104 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 540232C00AD for ; Wed, 26 Feb 2014 08:29:20 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751344AbaBYV3T (ORCPT ); Tue, 25 Feb 2014 16:29:19 -0500 Received: from mx1.redhat.com ([209.132.183.28]:32938 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751339AbaBYV3S (ORCPT ); Tue, 25 Feb 2014 16:29:18 -0500 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s1PLTEdY016117 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 25 Feb 2014 16:29:14 -0500 Received: from dhcp-26-207.brq.redhat.com (vpn-52-127.rdu2.redhat.com [10.10.52.127]) by int-mx02.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id s1PLT9tK008728 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Tue, 25 Feb 2014 16:29:12 -0500 Date: Tue, 25 Feb 2014 22:31:10 +0100 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Jens Axboe , Bartlomiej Zolnierkiewicz , Kyungmin Park , linux-pci@vger.kernel.org Subject: [PATCH 10/9] skd: Use pci_enable_msix_exact() instead of pci_enable_msix_range() Message-ID: <20140225213109.GA20652@dhcp-26-207.brq.redhat.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.67 on 10.5.11.12 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Function pci_enable_msix_exact() is a variation of pci_enable_msix_range() that allows a device driver to request a particular number of MSI-X interrupts, rather than any number within a specified range. Signed-off-by: Alexander Gordeev Cc: Jens Axboe Cc: Bartlomiej Zolnierkiewicz Cc: Kyungmin Park Cc: linux-pci@vger.kernel.org --- drivers/block/skd_main.c | 7 +++---- 1 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c index a69dd93..c244c5bc 100644 --- a/drivers/block/skd_main.c +++ b/drivers/block/skd_main.c @@ -3945,15 +3945,14 @@ static int skd_acquire_msix(struct skd_device *skdev) for (i = 0; i < SKD_MAX_MSIX_COUNT; i++) entries[i].entry = i; - rc = pci_enable_msix_range(pdev, entries, - SKD_MIN_MSIX_COUNT, SKD_MAX_MSIX_COUNT); - if (rc < 0) { + rc = pci_enable_msix_exact(pdev, entries, SKD_MAX_MSIX_COUNT); + if (rc) { pr_err("(%s): failed to enable MSI-X %d\n", skd_name(skdev), rc); goto msix_out; } - skdev->msix_count = rc; + skdev->msix_count = SKD_MAX_MSIX_COUNT; skdev->msix_entries = kzalloc(sizeof(struct skd_msix_entry) * skdev->msix_count, GFP_KERNEL); if (!skdev->msix_entries) {