From patchwork Thu Nov 9 22:07:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 743415 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 B577638F97; Thu, 9 Nov 2023 22:07:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Ro1Pntqd" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9CA3386A; Thu, 9 Nov 2023 14:07:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699567642; x=1731103642; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=AbHDxCgPYsCq01Y4foGl48AbFUMq8e0fAJvgOZkGp3U=; b=Ro1Pntqd1ajBcXlniclItxr6v/RhE6ymlWNL0rqBcey2gNky8xOUhAL0 QG5zosbh0sCr9q1jfe3EuahWQUQSLTf9t8a5/sNQfuM8hP0XgYwOFfif6 G5b1Mqt4U0inguwa/o8izk1KntfHDUKso/LYUTV8qmA0HRac4ZhdKYQ7A +abFvqv6fObV+0Xhp3hQx976SZFHzAyKX4AWUHPnIb7De7GnSjEiJy8i4 Z5GgjecjG+VzQNEDTi5z4SEzL3QdjHE6F1noHL+TboWjVAez9elii8/Xl 7H5UZSnELi22ZW/8S4R0Fcj3W+ZzpBO0PZcMFiLreiWO99KYvhfZhG4ZM Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="375124170" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="375124170" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 14:07:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10889"; a="713453304" X-IronPort-AV: E=Sophos;i="6.03,290,1694761200"; d="scan'208";a="713453304" Received: from iweiny-desk3.amr.corp.intel.com (HELO localhost) ([10.212.16.95]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2023 14:07:21 -0800 From: Ira Weiny Date: Thu, 09 Nov 2023 14:07:15 -0800 Subject: [PATCH RFC v4 2/6] cxl/events: Promote CXL event structures to a core header Precedence: bulk X-Mailing-List: linux-efi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20230601-cxl-cper-v4-2-47bb901f135e@intel.com> References: <20230601-cxl-cper-v4-0-47bb901f135e@intel.com> In-Reply-To: <20230601-cxl-cper-v4-0-47bb901f135e@intel.com> To: Dan Williams , Jonathan Cameron , Smita Koralahalli , Shiju Jose Cc: Yazen Ghannam , Davidlohr Bueso , Dave Jiang , Alison Schofield , Vishal Verma , Ard Biesheuvel , linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, Ira Weiny X-Mailer: b4 0.13-dev-0f7f0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1699567638; l=5662; i=ira.weiny@intel.com; s=20221222; h=from:subject:message-id; bh=AbHDxCgPYsCq01Y4foGl48AbFUMq8e0fAJvgOZkGp3U=; b=0yphYR5e01hvNWf6rzt8n4MS74bRzbSkQJuNEYi1O6g7zwPZ59/0jK4EY+VihK/3h96AStw41 DVPIRfXSFZ8AtLTcAiEjKFBzy1UGgm0UMWKEx/SMQmTEp57YgKbPLoN X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=brwqReAJklzu/xZ9FpSsMPSQ/qkSalbg6scP3w809Ec= UEFI code can process CXL events through CPER records. Those records use almost the same format as the CXL events. Lift the CXL event structures to a core header to be shared. Signed-off-by: Ira Weiny --- Changes from RFC v2: [djbw: new patch] --- drivers/cxl/cxlmem.h | 90 +---------------------------------------- include/linux/cxl-event.h | 100 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 101 insertions(+), 89 deletions(-) diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 706f8a6d1ef4..d694820ce8f5 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -6,6 +6,7 @@ #include #include #include +#include #include "cxl.h" /* CXL 2.0 8.2.8.5.1.1 Memory Device Status Register */ @@ -576,27 +577,6 @@ struct cxl_mbox_identify { u8 qos_telemetry_caps; } __packed; -/* - * Common Event Record Format - * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 - */ -struct cxl_event_record_hdr { - uuid_t id; - u8 length; - u8 flags[3]; - __le16 handle; - __le16 related_handle; - __le64 timestamp; - u8 maint_op_class; - u8 reserved[15]; -} __packed; - -#define CXL_EVENT_RECORD_DATA_LENGTH 0x50 -struct cxl_event_record_raw { - struct cxl_event_record_hdr hdr; - u8 data[CXL_EVENT_RECORD_DATA_LENGTH]; -} __packed; - /* * Get Event Records output payload * CXL rev 3.0 section 8.2.9.2.2; Table 8-50 @@ -638,74 +618,6 @@ struct cxl_mbox_clear_event_payload { } __packed; #define CXL_CLEAR_EVENT_MAX_HANDLES U8_MAX -/* - * General Media Event Record - * CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43 - */ -#define CXL_EVENT_GEN_MED_COMP_ID_SIZE 0x10 -struct cxl_event_gen_media { - struct cxl_event_record_hdr hdr; - __le64 phys_addr; - u8 descriptor; - u8 type; - u8 transaction_type; - u8 validity_flags[2]; - u8 channel; - u8 rank; - u8 device[3]; - u8 component_id[CXL_EVENT_GEN_MED_COMP_ID_SIZE]; - u8 reserved[46]; -} __packed; - -/* - * DRAM Event Record - DER - * CXL rev 3.0 section 8.2.9.2.1.2; Table 3-44 - */ -#define CXL_EVENT_DER_CORRECTION_MASK_SIZE 0x20 -struct cxl_event_dram { - struct cxl_event_record_hdr hdr; - __le64 phys_addr; - u8 descriptor; - u8 type; - u8 transaction_type; - u8 validity_flags[2]; - u8 channel; - u8 rank; - u8 nibble_mask[3]; - u8 bank_group; - u8 bank; - u8 row[3]; - u8 column[2]; - u8 correction_mask[CXL_EVENT_DER_CORRECTION_MASK_SIZE]; - u8 reserved[0x17]; -} __packed; - -/* - * Get Health Info Record - * CXL rev 3.0 section 8.2.9.8.3.1; Table 8-100 - */ -struct cxl_get_health_info { - u8 health_status; - u8 media_status; - u8 add_status; - u8 life_used; - u8 device_temp[2]; - u8 dirty_shutdown_cnt[4]; - u8 cor_vol_err_cnt[4]; - u8 cor_per_err_cnt[4]; -} __packed; - -/* - * Memory Module Event Record - * CXL rev 3.0 section 8.2.9.2.1.3; Table 8-45 - */ -struct cxl_event_mem_module { - struct cxl_event_record_hdr hdr; - u8 event_type; - struct cxl_get_health_info info; - u8 reserved[0x3d]; -} __packed; - struct cxl_mbox_get_partition_info { __le64 active_volatile_cap; __le64 active_persistent_cap; diff --git a/include/linux/cxl-event.h b/include/linux/cxl-event.h new file mode 100644 index 000000000000..1c94e8fdd227 --- /dev/null +++ b/include/linux/cxl-event.h @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_CXL_EVENT_H +#define _LINUX_CXL_EVENT_H + +/* + * CXL event records; CXL rev 3.0 + * + * Copyright(c) 2023 Intel Corporation. + */ + +/* + * Common Event Record Format + * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 + */ +struct cxl_event_record_hdr { + uuid_t id; + u8 length; + u8 flags[3]; + __le16 handle; + __le16 related_handle; + __le64 timestamp; + u8 maint_op_class; + u8 reserved[15]; +} __packed; + +#define CXL_EVENT_RECORD_DATA_LENGTH 0x50 +struct cxl_event_record_raw { + struct cxl_event_record_hdr hdr; + u8 data[CXL_EVENT_RECORD_DATA_LENGTH]; +} __packed; + +/* + * General Media Event Record + * CXL rev 3.0 Section 8.2.9.2.1.1; Table 8-43 + */ +#define CXL_EVENT_GEN_MED_COMP_ID_SIZE 0x10 +struct cxl_event_gen_media { + struct cxl_event_record_hdr hdr; + __le64 phys_addr; + u8 descriptor; + u8 type; + u8 transaction_type; + u8 validity_flags[2]; + u8 channel; + u8 rank; + u8 device[3]; + u8 component_id[CXL_EVENT_GEN_MED_COMP_ID_SIZE]; + u8 reserved[46]; +} __packed; + +/* + * DRAM Event Record - DER + * CXL rev 3.0 section 8.2.9.2.1.2; Table 3-44 + */ +#define CXL_EVENT_DER_CORRECTION_MASK_SIZE 0x20 +struct cxl_event_dram { + struct cxl_event_record_hdr hdr; + __le64 phys_addr; + u8 descriptor; + u8 type; + u8 transaction_type; + u8 validity_flags[2]; + u8 channel; + u8 rank; + u8 nibble_mask[3]; + u8 bank_group; + u8 bank; + u8 row[3]; + u8 column[2]; + u8 correction_mask[CXL_EVENT_DER_CORRECTION_MASK_SIZE]; + u8 reserved[0x17]; +} __packed; + +/* + * Get Health Info Record + * CXL rev 3.0 section 8.2.9.8.3.1; Table 8-100 + */ +struct cxl_get_health_info { + u8 health_status; + u8 media_status; + u8 add_status; + u8 life_used; + u8 device_temp[2]; + u8 dirty_shutdown_cnt[4]; + u8 cor_vol_err_cnt[4]; + u8 cor_per_err_cnt[4]; +} __packed; + +/* + * Memory Module Event Record + * CXL rev 3.0 section 8.2.9.2.1.3; Table 8-45 + */ +struct cxl_event_mem_module { + struct cxl_event_record_hdr hdr; + u8 event_type; + struct cxl_get_health_info info; + u8 reserved[0x3d]; +} __packed; + +#endif /* _LINUX_CXL_EVENT_H */