From patchwork Mon Sep 9 13:13:07 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 273569 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 0F11C2C0120 for ; Mon, 9 Sep 2013 23:18:59 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752062Ab3IINSo (ORCPT ); Mon, 9 Sep 2013 09:18:44 -0400 Received: from szxga01-in.huawei.com ([119.145.14.64]:44899 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751816Ab3IINRF (ORCPT ); Mon, 9 Sep 2013 09:17:05 -0400 Received: from 172.24.2.119 (EHLO szxeml210-edg.china.huawei.com) ([172.24.2.119]) by szxrg01-dlp.huawei.com (MOS 4.3.4-GA FastPath queued) with ESMTP id BIA84370; Mon, 09 Sep 2013 21:13:31 +0800 (CST) Received: from SZXEML420-HUB.china.huawei.com (10.82.67.159) by szxeml210-edg.china.huawei.com (172.24.2.183) with Microsoft SMTP Server (TLS) id 14.1.323.7; Mon, 9 Sep 2013 21:13:29 +0800 Received: from localhost (10.135.76.69) by szxeml420-hub.china.huawei.com (10.82.67.159) with Microsoft SMTP Server id 14.1.323.7; Mon, 9 Sep 2013 21:13:24 +0800 From: Yijing Wang To: Bjorn Helgaas , Chris Metcalf , Greg Kroah-Hartman , David Airlie , Mike Marciniszyn , Roland Dreier , Roland Dreier CC: , Mark Einon , Sean Hefty , Hal Rosenstock , , , Yijing Wang , Hanjun Guo Subject: [PATCH 5/6] staging/et131x: Use cached pci_dev->pcie_mpss and pcie_set_readrq() to simplif code Date: Mon, 9 Sep 2013 21:13:07 +0800 Message-ID: <1378732388-4508-6-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.11.msysgit.1 In-Reply-To: <1378732388-4508-1-git-send-email-wangyijing@huawei.com> References: <1378732388-4508-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.135.76.69] X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The PCI core caches the "PCI-E Max Payload Size Supported" in pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword(). Also use pcie_set_readrq() instead of pcie_capability_clear_and_set_word() to simplify code. Signed-off-by: Yijing Wang Acked-by: Greg Kroah-Hartman Acked-by: Mark Einon --- drivers/staging/et131x/et131x.c | 14 +++----------- 1 files changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c index f73e58f..876881d 100644 --- a/drivers/staging/et131x/et131x.c +++ b/drivers/staging/et131x/et131x.c @@ -3605,17 +3605,10 @@ static int et131x_pci_init(struct et131x_adapter *adapter, goto err_out; } - /* Let's set up the PORT LOGIC Register. First we need to know what - * the max_payload_size is - */ - if (pcie_capability_read_word(pdev, PCI_EXP_DEVCAP, &max_payload)) { - dev_err(&pdev->dev, - "Could not read PCI config space for Max Payload Size\n"); - goto err_out; - } + /* Let's set up the PORT LOGIC Register. */ /* Program the Ack/Nak latency and replay timers */ - max_payload &= 0x07; + max_payload = pdev->pcie_mpss; if (max_payload < 2) { static const u16 acknak[2] = { 0x76, 0xD0 }; @@ -3645,8 +3638,7 @@ static int et131x_pci_init(struct et131x_adapter *adapter, } /* Change the max read size to 2k */ - if (pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL, - PCI_EXP_DEVCTL_READRQ, 0x4 << 12)) { + if (pcie_set_readrq(pdev, 2048)) { dev_err(&pdev->dev, "Couldn't change PCI config space for Max read size\n"); goto err_out;