From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25AF3C38159 for ; Fri, 20 Jan 2023 03:32:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229905AbjATDcZ (ORCPT ); Thu, 19 Jan 2023 22:32:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41244 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229885AbjATDcK (ORCPT ); Thu, 19 Jan 2023 22:32:10 -0500 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9603B1EFA for ; Thu, 19 Jan 2023 19:32:09 -0800 (PST) Received: from kwepemm600005.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4NylPV0G1cz16NHQ; Fri, 20 Jan 2023 11:30:22 +0800 (CST) Received: from huawei.com (10.50.163.32) by kwepemm600005.china.huawei.com (7.193.23.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Fri, 20 Jan 2023 11:32:07 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v7 4/5] Documentation: add debugfs description for hisi_acc_vfio_pci Date: Fri, 20 Jan 2023 11:29:29 +0800 Message-ID: <20230120032930.43608-5-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20230120032930.43608-1-liulongfang@huawei.com> References: <20230120032930.43608-1-liulongfang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.50.163.32] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm600005.china.huawei.com (7.193.23.191) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a debugfs document description file to help users understand how to use the accelerator live migration driver's debugfs. Signed-off-by: Longfang Liu --- .../ABI/testing/debugfs-hisi-migration | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration diff --git a/Documentation/ABI/testing/debugfs-hisi-migration b/Documentation/ABI/testing/debugfs-hisi-migration new file mode 100644 index 000000000000..d644a497c464 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-hisi-migration @@ -0,0 +1,32 @@ +What: /sys/kernel/debug/vfio_mig//state +Date: Jan 2023 +Contact: linux-kernel@vger.kernel.org +Description: Read the live migration status of the VF device. + The status of these live migrations includes: + ERROR, RUNNING, STOP, STOP_COPY, RESUMING. + +What: /sys/kernel/debug/vfio_mig//mig_data +Date: Jan 2023 +Contact: linux-kernel@vger.kernel.org +Description: Read the live migration data of the VF device. + The output format of the data is defined by the live + migration driver. + +What: /sys/kernel/debug/vfio_mig//mig_attr +Date: Jan 2023 +Contact: linux-kernel@vger.kernel.org +Description: Read the live migration attributes of the VF device. + The output format of the attributes is defined by the live + migration driver. + +What: /sys/kernel/debug/vfio_mig//debug +Date: Jan 2023 +Contact: linux-kernel@vger.kernel.org +Description: This debug file supports "echo" command write operations. + The command is actually represented by an integer number, and the + specific meaning is defined by the corresponding device driver. + For example, three commands are defined in the HiSilicon accelerator + live migration driver: + 0: State save + 1: State resume + 2: IO test -- 2.24.0