From patchwork Mon Apr 21 15:19:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Gordeev X-Patchwork-Id: 4025341 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8B5219F319 for ; Mon, 21 Apr 2014 15:18:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BC75F202EB for ; Mon, 21 Apr 2014 15:18:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E44D720221 for ; Mon, 21 Apr 2014 15:18:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751446AbaDUPSN (ORCPT ); Mon, 21 Apr 2014 11:18:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:22569 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751287AbaDUPSM (ORCPT ); Mon, 21 Apr 2014 11:18:12 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s3LFI71N013464 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 21 Apr 2014 11:18:07 -0400 Received: from dhcp-26-207.brq.redhat.com (vpn-63-105.rdu2.redhat.com [10.10.63.105]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s3LFI2he008438; Mon, 21 Apr 2014 11:18:06 -0400 From: Alexander Gordeev To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Jens Axboe , Bartlomiej Zolnierkiewicz , Kyungmin Park , linux-pci@vger.kernel.org Subject: [PATCH RESEND 1/2] skd: Use pci_enable_msix_exact() instead of pci_enable_msix_range() Date: Mon, 21 Apr 2014 17:19:31 +0200 Message-Id: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 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) {