From patchwork Tue Aug 6 12:29:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: liulongfang X-Patchwork-Id: 13754777 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 968D81BD507; Tue, 6 Aug 2024 12:37:43 +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=1722947865; cv=none; b=e7zroD9WJVOPgG7PKicgKrMJlJtz7EMrWCH6UeNpXa0HpIZZam3cA+OuG+Yzk2wkdA9SiLUjcwL6W6o8R4A7GVoVC8usPTqXo2uvT9HfUxePHHerynLzhhzHiLbnX3zfv9kYTH+N8sMeyC23yQm2d8ZqrQMvuGlGrMLJxH/ymtU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722947865; c=relaxed/simple; bh=f55jc9z6uEIp7Y9jmlkWELf5oT9//u8l2fy9Tf+LnrE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=EXM3QimQfdv71TMzpnYJoUzQXar095LnNoXx8f4B9em+65PIgo73dfs4QxOpouAYmet9d1p2sDPINDt61RKUmZvoAmeaBLaC2fLozusjxK0eIlWeiEz91Mjx9ZySkeE94FLbmqut9I0UFHZ53vhyD8VfSyP5O6hHjxlH8/ZedLA= 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 [172.19.88.105]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4WdXqP0fcTzpSv2; Tue, 6 Aug 2024 20:36:33 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id C29F114011B; Tue, 6 Aug 2024 20:37:41 +0800 (CST) Received: from huawei.com (10.50.165.33) by kwepemm600005.china.huawei.com (7.193.23.191) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Tue, 6 Aug 2024 20:37:41 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v8 4/4] Documentation: add debugfs description for hisi migration Date: Tue, 6 Aug 2024 20:29:28 +0800 Message-ID: <20240806122928.46187-5-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20240806122928.46187-1-liulongfang@huawei.com> References: <20240806122928.46187-1-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 kwepemm600005.china.huawei.com (7.193.23.191) 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..ad6eb437cdcd --- /dev/null +++ b/Documentation/ABI/testing/debugfs-hisi-migration @@ -0,0 +1,25 @@ +What: /sys/kernel/debug/vfio//migration/hisi_acc/dev_data +Date: Aug 2024 +KernelVersion: 6.11 +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: Aug 2024 +KernelVersion: 6.11 +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: Aug 2024 +KernelVersion: 6.11 +Contact: Longfang Liu +Description: Used to obtain the device command sending and receiving + channel status. Returns failure or success logs based on the + results.