From patchwork Thu Feb 13 11:36:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yicong Yang X-Patchwork-Id: 1237433 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=hisilicon.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48JF2G23jnz9sNg for ; Thu, 13 Feb 2020 22:40:54 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729893AbgBMLku (ORCPT ); Thu, 13 Feb 2020 06:40:50 -0500 Received: from szxga07-in.huawei.com ([45.249.212.35]:54320 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729820AbgBMLku (ORCPT ); Thu, 13 Feb 2020 06:40:50 -0500 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id 91E3B4B0A746F56FE97B; Thu, 13 Feb 2020 19:40:42 +0800 (CST) Received: from localhost.localdomain (10.67.165.24) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.439.0; Thu, 13 Feb 2020 19:40:32 +0800 From: Yicong Yang To: , CC: , Subject: [PATCH v3 4/9] PCI: Add comments for link speed info arrays Date: Thu, 13 Feb 2020 19:36:28 +0800 Message-ID: <1581593793-23589-5-git-send-email-yangyicong@hisilicon.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1581593793-23589-1-git-send-email-yangyicong@hisilicon.com> References: <1581593793-23589-1-git-send-email-yangyicong@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add comments for pcix_bus_speed[] and pcie_link_speed[] arrays. Indicating the capabilities which the information from. Signed-off-by: Yicong Yang --- drivers/pci/probe.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 6ce47d8..b97f969 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -640,6 +640,10 @@ void pci_free_host_bridge(struct pci_host_bridge *bridge) } EXPORT_SYMBOL(pci_free_host_bridge); +/* + * these indices represent secondary bus mode and + * frequency from PCI_X_SSTATUS_FREQ + */ static const unsigned char pcix_bus_speed[] = { PCI_SPEED_UNKNOWN, /* 0 */ PCI_SPEED_66MHz_PCIX, /* 1 */ @@ -659,6 +663,10 @@ static const unsigned char pcix_bus_speed[] = { PCI_SPEED_133MHz_PCIX_533 /* F */ }; +/* + * these indices represent PCIe link speed from + * PCI_EXP_LNKCAP, PCI_EXP_LNKSTA, PCI_EXP_LNKCAP2 + */ const unsigned char pcie_link_speed[] = { PCI_SPEED_UNKNOWN, /* 0 */ PCIE_SPEED_2_5GT, /* 1 */