From patchwork Tue Apr 6 17:26:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 12185609 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FEDAC433B4 for ; Tue, 6 Apr 2021 17:27:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5EF60613D3 for ; Tue, 6 Apr 2021 17:27:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346957AbhDFR1N (ORCPT ); Tue, 6 Apr 2021 13:27:13 -0400 Received: from smtprelay-out1.synopsys.com ([149.117.73.133]:33622 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346942AbhDFR1M (ORCPT ); Tue, 6 Apr 2021 13:27:12 -0400 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 41E9140133; Tue, 6 Apr 2021 17:27:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1617730024; bh=iSxtzBdDE2cJnjE+FKkXJyxRBdv7BWhqnOaNUTMnKw0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=NJdRJvLYo9ozC8UTf1Qw7tMHdvwCP4/aoLXUun3NlTLvOyVWZflwrpe1zb7TtSvKr VmGRVgNZu/5Z2BA1Wj0NiqtjUd6Ta6m9SPBCzypxRaUHZwnW9VPozyzm9tSIUkR0sE o3sYeQpIWhJWACoTRgl5diV7rSbmhH3/eNucJLGZutnW7V/1eJ/ZEmlAeYbSLfjJtQ KKFAzwsLAnV6rDY892/D1I+LKHeGx+sr5OStMoQGGexPt9Lz1WL8OkhYHgB8DeO1li U2h5V2aTvLkDNDs/OIffTC296jBVkl6rDz//Ut++QxIxCFHbew4CQENVoI34Oj1gMe xPEw2n9dAtPbA== Received: from de02dwvm009.internal.synopsys.com (de02dwvm009.internal.synopsys.com [10.225.17.73]) by mailhost.synopsys.com (Postfix) with ESMTP id 1ABFDA0237; Tue, 6 Apr 2021 17:27:03 +0000 (UTC) X-SNPS-Relay: synopsys.com From: Gustavo Pimentel To: linux-doc@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Derek Kiernan , Dragan Cvetic , Arnd Bergmann , Andrew Morton , Greg Kroah-Hartman , Jonathan Corbet , Bjorn Helgaas , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Stephen Rothwell Cc: Gustavo Pimentel Subject: [PATCH v11 4/4] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver Date: Tue, 6 Apr 2021 19:26:49 +0200 Message-Id: <38dcaa99313ad7b42d492ddd3576a33c4029fa6b.1617729785.git.gustavo.pimentel@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This patch describes the sysfs interface implemented on the dw-xdata-pcie driver. Signed-off-by: Gustavo Pimentel --- Documentation/ABI/testing/sysfs-driver-xdata | 49 ++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-xdata diff --git a/Documentation/ABI/testing/sysfs-driver-xdata b/Documentation/ABI/testing/sysfs-driver-xdata new file mode 100644 index 00000000..f574e8e --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xdata @@ -0,0 +1,49 @@ +What: /sys/class/misc/drivers/dw-xdata-pcie./write +Date: April 2021 +KernelVersion: 5.13 +Contact: Gustavo Pimentel +Description: Allows the user to enable the PCIe traffic generator which + will create write TLPs frames - from the Root Complex to the + Endpoint direction or to disable the PCIe traffic generator + in all directions. + + Write y/1/on to enable, n/0/off to disable + + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie./write + or + echo 0 > /sys/class/misc/dw-xdata-pcie./write + + The user can read the current PCIe link throughput generated + through this generator in MB/s. + + Usage e.g. + cat /sys/class/misc/dw-xdata-pcie./write + 204 + + The file is read and write. + +What: /sys/class/misc/dw-xdata-pcie./read +Date: April 2021 +KernelVersion: 5.13 +Contact: Gustavo Pimentel +Description: Allows the user to enable the PCIe traffic generator which + will create read TLPs frames - from the Endpoint to the Root + Complex direction or to disable the PCIe traffic generator + in all directions. + + Write y/1/on to enable, n/0/off to disable + + Usage e.g. + echo 1 > /sys/class/misc/dw-xdata-pcie./read + or + echo 0 > /sys/class/misc/dw-xdata-pcie./read + + The user can read the current PCIe link throughput generated + through this generator in MB/s. + + Usage e.g. + cat /sys/class/misc/dw-xdata-pcie./read + 199 + + The file is read and write.