From patchwork Wed Feb 3 22:12:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gustavo Pimentel X-Patchwork-Id: 1435658 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.a=rsa-sha256 header.s=mail header.b=k1qhr8y9; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DWGDl5Js1z9sWR for ; Thu, 4 Feb 2021 09:14:15 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232968AbhBCWOB (ORCPT ); Wed, 3 Feb 2021 17:14:01 -0500 Received: from smtprelay-out1.synopsys.com ([149.117.73.133]:32840 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232720AbhBCWN7 (ORCPT ); Wed, 3 Feb 2021 17:13:59 -0500 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 8ABCC40490; Wed, 3 Feb 2021 22:12:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1612390378; bh=im9YPeIOIOX6v4VKPr6LIGB+a/nLiNTjVu6zUPMNTcw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=k1qhr8y91jhHcGN/0CdZzJalsL7UXUwn0Q3e8sEcKFtuwGIJJknsJzq82yosvACGf Jk/h3Ky7V6mkt1ikgqfN57cATia4ntjnvIDhSWPlRTMFxJgTqesQqZSlblXWyTnpew ci8oIcAUiU9XnR4ROXaTCFnnbE5pmIFHJCB+YN+Hxx4aKTihA0yEvUHkxGXZ0gH3cP trjUwfFmowPNbJnTQXtpPBHrnisL/Cx+WeuvdaNB5imlP4qLNNa14Tpkm2AcypeYsq Qv8dnrubInhMDcsuNMtkJYHTEfIXBxyHVv1CwdxlPVT9OlQSad3Otpo/3XuHkSRnHO VggzKd1kkX8Kw== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 5E12EA0249; Wed, 3 Feb 2021 22:12:57 +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 Cc: Gustavo Pimentel Subject: [RESEND v4 6/6] docs: ABI: Add sysfs documentation interface of dw-xdata-pcie driver Date: Wed, 3 Feb 2021 23:12:51 +0100 Message-Id: <45f0701b523cda52b4b7f42351b63d5a0b6040b6.1612390291.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 | 46 ++++++++++++++++++++++++++++ 1 file changed, 46 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..a7bb44b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-xdata @@ -0,0 +1,46 @@ +What: /sys/kernel/dw-xdata-pcie/write +Date: February 2021 +KernelVersion: 5.12 +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. + Usage e.g. + echo 1 > /sys/kernel/dw-xdata-pcie/write + + The user can read the current PCIe link throughput generated + through this generator. + Usage e.g. + cat /sys/kernel/dw-xdata-pcie/write + 204 MB/s + + The file is read and write. + +What: /sys/kernel/dw-xdata-pcie/read +Date: February 2021 +KernelVersion: 5.12 +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. + Usage e.g. + echo 1 > /sys/kernel/dw-xdata-pcie/read + + The user can read the current PCIe link throughput generated + through this generator. + Usage e.g. + cat /sys/kernel/dw-xdata-pcie/read + 199 MB/s + + The file is read and write. + +What: /sys/kernel/dw-xdata-pcie/stop +Date: February 2021 +KernelVersion: 5.12 +Contact: Gustavo Pimentel +Description: Allows the user to disable the PCIe traffic generator in all + directions. + Usage e.g. + echo 1 > /sys/kernel/dw-xdata-pcie/stop + + The file is write only.