From patchwork Mon Mar 13 14:22:54 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 9621043 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0D4C9604A9 for ; Mon, 13 Mar 2017 14:25:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F2DF92832B for ; Mon, 13 Mar 2017 14:25:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E7CA6283F9; Mon, 13 Mar 2017 14:25:05 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 268442848E for ; Mon, 13 Mar 2017 14:25:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753255AbdCMOY5 (ORCPT ); Mon, 13 Mar 2017 10:24:57 -0400 Received: from fllnx210.ext.ti.com ([198.47.19.17]:52694 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753401AbdCMOYu (ORCPT ); Mon, 13 Mar 2017 10:24:50 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by fllnx210.ext.ti.com (8.15.1/8.15.1) with ESMTP id v2DEOH5S027428; Mon, 13 Mar 2017 09:24:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1489415057; bh=TAV/9KWLdoFEu8Yy8aSDRn4AY/t1njCTasOX4v0H52A=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=nrYZrTN9KAuzKSRsJvs+VxUYz6wyHqElnndUpu7ieDIS6+qFOGYS6meaAor845xBs geQbui00NZvIZx1uF62qBVfG5VjB4Kbnastz4lX9H/SDjfu0lb6QQVfkDqIPUrHkOn kP0pydl+FGp17v6ZUt/Df6UrltFkDe1gsB3RE/80= Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v2DEOHvD004633; Mon, 13 Mar 2017 09:24:17 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.294.0; Mon, 13 Mar 2017 09:24:16 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v2DEN3eY003368; Mon, 13 Mar 2017 09:24:14 -0500 From: Kishon Vijay Abraham I To: Bjorn Helgaas , Joao Pinto , , , , , , CC: , , Subject: [PATCH v4 18/23] Documentation: misc-devices: Add Documentation for pci-endpoint-test driver Date: Mon, 13 Mar 2017 19:52:54 +0530 Message-ID: <20170313142259.25397-19-kishon@ti.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170313142259.25397-1-kishon@ti.com> References: <20170313142259.25397-1-kishon@ti.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add Documentation for pci-endpoint-test driver. Signed-off-by: Kishon Vijay Abraham I --- Documentation/misc-devices/pci-endpoint-test.txt | 35 ++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/misc-devices/pci-endpoint-test.txt diff --git a/Documentation/misc-devices/pci-endpoint-test.txt b/Documentation/misc-devices/pci-endpoint-test.txt new file mode 100644 index 000000000000..438571898d27 --- /dev/null +++ b/Documentation/misc-devices/pci-endpoint-test.txt @@ -0,0 +1,35 @@ +Driver for PCI Endpoint Test Function + +This driver should be used as a host side driver if the root complex is +connected to a configurable pci endpoint running *pci_epf_test* function +driver configured according to [1]. + +The "pci_endpoint_test" driver can be used to perform the following tests. + +The PCI driver for the test device performs the following tests + *) verifying addresses programmed in BAR + *) raise legacy IRQ + *) raise MSI IRQ + *) read data + *) write data + *) copy data + +This misc driver creates /dev/pci-endpoint-test. for every +*pci_epf_test* function connected to the root complex and "ioctls" +should be used to perform the above tests. + +ioctl +----- + PCITEST_BAR: Tests the BAR. The number of the BAR that has to be tested + should be passed as argument. + PCITEST_LEGACY_IRQ: Tests legacy IRQ + PCITEST_MSI: Tests message signalled interrupts. The MSI number that has + to be tested should be passed as argument. + PCITEST_WRITE: Perform write tests. The size of the buffer should be passed + as argument. + PCITEST_READ: Perform read tests. The size of the buffer should be passed + as argument. + PCITEST_COPY: Perform read tests. The size of the buffer should be passed + as argument. + +[1] -> Documentation/PCI/endpoint/function/binding/pci-test.txt