From patchwork Tue Nov 12 07:33:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: liulongfang X-Patchwork-Id: 13871797 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B80220B7FA; Tue, 12 Nov 2024 07:36:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731396971; cv=none; b=uvJgk4bcNXN+UY7v+MeD2Ccx+d09RnQyIRybn2L15tHFYBXqIhZ/Fnyus3kp68te77QAdchgl3plB0U9G5nrnhMecjRDs7haJwkHjfdv2QDdehjkp+x6KC/HEQP9EQpcglrsq3FHGvbI7lbrhHVqOHQmdIvh4HO6gokr7ljQLm4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731396971; c=relaxed/simple; bh=/p+aqP93T3K4PYoazZPh+X0mdSLojNh6PgukGvcdpIs=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ocnPtiJxXRl2j0ZqWXI4VW/5M6IHBX+mdSz1o1k3DWPZOFp2jrYgMtaSNlc/6hLMrldbHqkWXr7B/6STkA2h8tpQL6/ZPcMEQ3pFkWCwHsFTCCSMldp77KaJBKrQAYHgRccFdBbPui6GeCPooMSa1RnloZ2x6FdlnnYdjr9JFas= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.254]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4XndSN6nJZzDqV9; Tue, 12 Nov 2024 15:33:24 +0800 (CST) Received: from dggemv704-chm.china.huawei.com (unknown [10.3.19.47]) by mail.maildlp.com (Postfix) with ESMTPS id 8A943180104; Tue, 12 Nov 2024 15:36:04 +0800 (CST) Received: from kwepemn100017.china.huawei.com (7.202.194.122) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Tue, 12 Nov 2024 15:36:04 +0800 Received: from huawei.com (10.50.165.33) by kwepemn100017.china.huawei.com (7.202.194.122) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 12 Nov 2024 15:36:03 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v15 4/4] Documentation: add debugfs description for hisi migration Date: Tue, 12 Nov 2024 15:33:22 +0800 Message-ID: <20241112073322.54550-5-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20241112073322.54550-1-liulongfang@huawei.com> References: <20241112073322.54550-1-liulongfang@huawei.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemn100017.china.huawei.com (7.202.194.122) Add a debugfs document description file to help users understand how to use the hisilicon accelerator live migration driver's debugfs. Update the file paths that need to be maintained in MAINTAINERS Signed-off-by: Longfang Liu Reviewed-by: Shameer Kolothum --- .../ABI/testing/debugfs-hisi-migration | 25 +++++++++++++++++++ 1 file changed, 25 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..2c01b2d387dd --- /dev/null +++ b/Documentation/ABI/testing/debugfs-hisi-migration @@ -0,0 +1,25 @@ +What: /sys/kernel/debug/vfio//migration/hisi_acc/dev_data +Date: Jan 2025 +KernelVersion: 6.13 +Contact: Longfang Liu +Description: Read the configuration data and some status data + required for device live migration. These data include device + status data, queue configuration data, some task configuration + data and device attribute data. The output format of the data + is defined by the live migration driver. + +What: /sys/kernel/debug/vfio//migration/hisi_acc/migf_data +Date: Jan 2025 +KernelVersion: 6.13 +Contact: Longfang Liu +Description: Read the data from the last completed live migration. + This data includes the same device status data as in "dev_data". + The migf_data is the dev_data that is migrated. + +What: /sys/kernel/debug/vfio//migration/hisi_acc/cmd_state +Date: Jan 2025 +KernelVersion: 6.13 +Contact: Longfang Liu +Description: Used to obtain the device command sending and receiving + channel status. Returns failure or success logs based on the + results.