From patchwork Fri Oct 25 09:01:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Longfang Liu X-Patchwork-Id: 13850247 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 3C96E1D222F; Fri, 25 Oct 2024 09:04:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729847057; cv=none; b=MCaqkYcLBk+ocxEn9CcGewN+PmdIcx4F2Z8DE3Kc0TtZaa70Q2hlTRPRIzxBcDrdF8DloJvkz9fpdCGvuu4p6WZMj4iT1wiLN8nhVh4DHltqwszhysjRToCP81XDJgrEL+3wkm3MvmpohXxxfgtM/peRsNiDySTGL2DyXQoucR4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729847057; c=relaxed/simple; bh=UyohMo7jcmqSJ543BpeQ58/1w+KHTlZr9IKhyVxdzdM=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uYhMC1wGSmKnHUX/FVoVHTcRW1VIUIBwhHMsocsxf3xWVsZ9mCuKKQNfZVLBoT0G3JCdmHP3Yw4ItEApG/wAQ2i0ItzrtHxdwV57gWfksuYcjJ0RLi7yAtgG0Q3lsOMbQ4oSkhQe6xvuTp/rJr9XV8fs0x7Lzx7W28M8NMYGefw= 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=45.249.212.187 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 [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4XZcHd69wjzyT16; Fri, 25 Oct 2024 17:02:37 +0800 (CST) Received: from kwepemm600005.china.huawei.com (unknown [7.193.23.191]) by mail.maildlp.com (Postfix) with ESMTPS id 722AE18006C; Fri, 25 Oct 2024 17:04:11 +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; Fri, 25 Oct 2024 17:04:10 +0800 From: Longfang Liu To: , , , CC: , , , Subject: [PATCH v11 4/4] Documentation: add debugfs description for hisi migration Date: Fri, 25 Oct 2024 17:01:43 +0800 Message-ID: <20241025090143.64472-5-liulongfang@huawei.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20241025090143.64472-1-liulongfang@huawei.com> References: <20241025090143.64472-1-liulongfang@huawei.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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..89e4fde5ec6a --- /dev/null +++ b/Documentation/ABI/testing/debugfs-hisi-migration @@ -0,0 +1,25 @@ +What: /sys/kernel/debug/vfio//migration/hisi_acc/dev_data +Date: Oct 2024 +KernelVersion: 6.12 +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: Oct 2024 +KernelVersion: 6.12 +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: Oct 2024 +KernelVersion: 6.12 +Contact: Longfang Liu +Description: Used to obtain the device command sending and receiving + channel status. Returns failure or success logs based on the + results.