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 53B94C4332F for ; Tue, 14 Nov 2023 12:57:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232212AbjKNM5K (ORCPT ); Tue, 14 Nov 2023 07:57:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55812 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229441AbjKNM5I (ORCPT ); Tue, 14 Nov 2023 07:57:08 -0500 Received: from frasgout.his.huawei.com (frasgout.his.huawei.com [185.176.79.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF68F196; Tue, 14 Nov 2023 04:57:04 -0800 (PST) Received: from lhrpeml500006.china.huawei.com (unknown [172.18.147.207]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4SV5mV35ssz6JBHR; Tue, 14 Nov 2023 20:52:26 +0800 (CST) Received: from SecurePC30232.china.huawei.com (10.122.247.234) by lhrpeml500006.china.huawei.com (7.191.161.198) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Tue, 14 Nov 2023 12:57:02 +0000 From: To: CC: , , , , , , , , , , , , , , , , , , , , <"pgonda@pgonda"@google.com>, , , , , , , , , Subject: [RFC PATCH 0/6] cxl: Add support for CXL feature commands, CXL device patrol scrub control and DDR5 ECS control features Date: Tue, 14 Nov 2023 20:56:41 +0800 Message-ID: <20231114125648.1146-1-shiju.jose@huawei.com> X-Mailer: git-send-email 2.35.1.windows.2 MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.122.247.234] X-ClientProxiedBy: lhrpeml100001.china.huawei.com (7.191.160.183) To lhrpeml500006.china.huawei.com (7.191.161.198) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shiju Jose 1. Add support for CXL feature commands(CXL spec 3.0 section 8.2.9.6). 2. Add CXL device scrub driver supporting patrol scrub control feature (CXL spec 3.1 section 8.2.9.9.11.1) and DDR5 ECS feature(CXL spec 3.1 section 8.2.9.9.11.2). 3. Add scrub attributes for DDR5 ECS control to the memory scrub driver. The attributes for the CXL scrub control features is exposed to the user in the sysfs and is based on the previous code submitted for the memory scrub control feature. The patch and series for supporting memory scrub control feature are here, https://lore.kernel.org/lkml/20230915172818.761-2-shiju.jose@huawei.com/ https://lore.kernel.org/lkml/20230915172818.761-1-shiju.jose@huawei.com/ The QEMU series to support these features is available here, https://lore.kernel.org/qemu-devel/20231114124711.1128-1-shiju.jose@huawei.com/T/#t Shiju Jose (6): cxl/mbox: Add GET_SUPPORTED_FEATURES, GET_FEATURE and SET_FEATURE mailbox commands cxl/memscrub: Add CXL device patrol scrub control feature memory: scrub: Add function to show scrub attributes in decimal memory: scrub: Add scrub control attributes for the DDR5 ECS cxl/memscrub: Add CXL device DDR5 ECS control feature cxl: scrub: sysfs: Add Documentation for CXL memory device scrub control attributes .../testing/sysfs-class-cxl-scrub-configure | 135 +++ drivers/cxl/Kconfig | 23 + drivers/cxl/core/Makefile | 1 + drivers/cxl/core/mbox.c | 74 ++ drivers/cxl/core/memscrub.c | 1008 +++++++++++++++++ drivers/cxl/cxlmem.h | 104 ++ drivers/cxl/pci.c | 8 + drivers/memory/scrub/memory-scrub.c | 36 +- include/memory/memory-scrub.h | 11 + include/uapi/linux/cxl_mem.h | 3 + 10 files changed, 1400 insertions(+), 3 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-cxl-scrub-configure create mode 100644 drivers/cxl/core/memscrub.c -- 2.34.1