From patchwork Sat Aug 13 05:32:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 12942685 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 3B3AFC3F6B0 for ; Sat, 13 Aug 2022 05:32:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237115AbiHMFcy (ORCPT ); Sat, 13 Aug 2022 01:32:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233151AbiHMFcv (ORCPT ); Sat, 13 Aug 2022 01:32:51 -0400 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1C27EE0B; Fri, 12 Aug 2022 22:32:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1660368770; x=1691904770; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=D6VnTO6wFUzvwPIr6RrrOgbRnQbphIg09pNi3QgmP+I=; b=Esjb4z22AJXUC2nR1tSch/mbd7lGB/yoW0etkEhwIAlNa2ZG9Q+JL2We OgBKKG9dizIisYXFFiZxb15xS4PxWvVgH/Go2MIRHCm3HeSWFiOE0L4xk SIeq5pZTbEnOQQT/lbM1Elqh+qXtOuhNK0PSIre7eKclPSBRTLBMSxhqV 3KyJCyye3nLKOUAaut/9Tax7TmtezCaLU7p6JLPyz/Rn4SL/xkwAQS4Tk M59LMZBNmMJLrVORNWOmNmN664j8kL6t6RE6hwojuJwXOYwmnyzrgV3VN 6relQe+GUk8y9nbT8ShdaLeCkTaz+JQlE5wgMRiNmiaQzEry/XpL8nCqe A==; X-IronPort-AV: E=McAfee;i="6400,9594,10437"; a="317706339" X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="317706339" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 22:32:50 -0700 X-IronPort-AV: E=Sophos;i="5.93,233,1654585200"; d="scan'208";a="609456066" Received: from jchen8-mobl.amr.corp.intel.com (HELO localhost) ([10.212.10.85]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2022 22:32:50 -0700 From: ira.weiny@intel.com To: Dan Williams Cc: Ira Weiny , Alison Schofield , Vishal Verma , Ben Widawsky , Steven Rostedt , Jonathan Cameron , Davidlohr Bueso , linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org Subject: [RFC PATCH 6/9] cxl/mem: Trace Memory Module Event Record Date: Fri, 12 Aug 2022 22:32:40 -0700 Message-Id: <20220813053243.757363-7-ira.weiny@intel.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220813053243.757363-1-ira.weiny@intel.com> References: <20220813053243.757363-1-ira.weiny@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Ira Weiny CXL v3.0 section 8.2.9.2.1.3 defines the Memory Module Event Record. Determine if the event read is memory module record and if so trace the record. Signed-off-by: Ira Weiny --- drivers/cxl/core/mbox.c | 16 +++ drivers/cxl/cxlmem.h | 25 +++++ include/trace/events/cxl-events.h | 155 ++++++++++++++++++++++++++++++ 3 files changed, 196 insertions(+) diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 6414588a3c7b..99b09bfeaff5 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -725,6 +725,14 @@ static const uuid_t dram_event_uuid = UUID_INIT(0x601dcbb3, 0x9c06, 0x4eab, 0xb8, 0xaf, 0x4e, 0x9b, 0xfb, 0x5c, 0x96, 0x24); +/* + * Memory Module Event Record + * CXL v3.0 section 8.2.9.2.1.3; Table 8-45 + */ +static const uuid_t mem_mod_event_uuid = + UUID_INIT(0xfe927475, 0xdd59, 0x4339, + 0xa5, 0x86, 0x79, 0xba, 0xb1, 0x13, 0xb7, 0x74); + static void cxl_trace_event_record(const char *dev_name, enum cxl_event_log_type type, struct cxl_get_event_payload *payload) @@ -747,6 +755,14 @@ static void cxl_trace_event_record(const char *dev_name, return; } + if (uuid_equal(id, &mem_mod_event_uuid)) { + struct cxl_evt_mem_mod_rec *rec = + (struct cxl_evt_mem_mod_rec *)&payload->record; + + trace_cxl_mem_mod_event(dev_name, type, rec); + return; + } + /* For unknown record types print just the header */ trace_cxl_event(dev_name, type, &payload->record); } diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 50536c0a7850..a02a41dfd988 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -445,6 +445,31 @@ struct cxl_evt_dram_rec { u8 correction_mask[CXL_EVT_DER_CORRECTION_MASK_SIZE]; } __packed; +/* + * Get Health Info Record + * CXL v3.0 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; + u16 device_temp; + u32 dirty_shutdown_cnt; + u32 cor_vol_err_cnt; + u32 cor_per_err_cnt; +} __packed; + +/* + * Memory Module Event Record + * CXL v3.0 section 8.2.9.2.1.3; Table 8-45 + */ +struct cxl_evt_mem_mod_rec { + struct cxl_event_record_hdr hdr; + u8 event_type; + struct cxl_get_health_info info; +} __packed; + struct cxl_mbox_get_partition_info { __le64 active_volatile_cap; __le64 active_persistent_cap; diff --git a/include/trace/events/cxl-events.h b/include/trace/events/cxl-events.h index db9b34ddd240..dbbe25fee25c 100644 --- a/include/trace/events/cxl-events.h +++ b/include/trace/events/cxl-events.h @@ -358,6 +358,161 @@ TRACE_EVENT(cxl_dram_event, ) ); +/* + * Memory Module Event Record - MMER + * + * CXL v2.0 section 8.2.9.1.1.3; Table 156, Table 181 + * + * Device Health Information - DHI; Table 181 + */ +#define CXL_MMER_HEALTH_STATUS_CHANGE 0x00 +#define CXL_MMER_MEDIA_STATUS_CHANGE 0x01 +#define CXL_MMER_LIFE_USED_CHANGE 0x02 +#define CXL_MMER_TEMP_CHANGE 0x03 +#define CXL_MMER_DATA_PATH_ERROR 0x04 +#define CXL_MMER_LAS_ERROR 0x05 +#define show_dev_evt_type(type) __print_symbolic(type, \ + { CXL_MMER_HEALTH_STATUS_CHANGE, "Health Status Change" }, \ + { CXL_MMER_MEDIA_STATUS_CHANGE, "Media Status Change" }, \ + { CXL_MMER_LIFE_USED_CHANGE, "Life Used Change" }, \ + { CXL_MMER_TEMP_CHANGE, "Temperature Change" }, \ + { CXL_MMER_DATA_PATH_ERROR, "Data Path Error" }, \ + { CXL_MMER_LAS_ERROR, "LSA Error" } \ +) + +#define CXL_DHI_HS_MAINTENANCE_NEEDED BIT(0) +#define CXL_DHI_HS_PERFORMANCE_DEGRADED BIT(1) +#define CXL_DHI_HS_HW_REPLACEMENT_NEEDED BIT(2) +#define show_health_status_flags(flags) __print_flags(flags, "|", \ + { CXL_DHI_HS_MAINTENANCE_NEEDED, "Maintenance Needed" }, \ + { CXL_DHI_HS_PERFORMANCE_DEGRADED, "Performance Degraded" }, \ + { CXL_DHI_HS_HW_REPLACEMENT_NEEDED, "Replacement Needed" } \ +) + +#define CXL_DHI_MS_NORMAL 0x00 +#define CXL_DHI_MS_NOT_READY 0x01 +#define CXL_DHI_MS_WRITE_PERSISTENCY_LOST 0x02 +#define CXL_DHI_MS_ALL_DATA_LOST 0x03 +#define CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_EVENT_POWER_LOSS 0x04 +#define CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_EVENT_SHUTDOWN 0x05 +#define CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_IMMINENT 0x06 +#define CXL_DHI_MS_WRITE_ALL_DATA_LOSS_EVENT_POWER_LOSS 0x07 +#define CXL_DHI_MS_WRITE_ALL_DATA_LOSS_EVENT_SHUTDOWN 0x08 +#define CXL_DHI_MS_WRITE_ALL_DATA_LOSS_IMMINENT 0x09 +#define show_media_status(ms) __print_symbolic(ms, \ + { CXL_DHI_MS_NORMAL, \ + "Normal" }, \ + { CXL_DHI_MS_NOT_READY, \ + "Not Ready" }, \ + { CXL_DHI_MS_WRITE_PERSISTENCY_LOST, \ + "Write Persistency Lost" }, \ + { CXL_DHI_MS_ALL_DATA_LOST, \ + "All Data Lost" }, \ + { CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_EVENT_POWER_LOSS, \ + "Write Persistency Loss in the Event of Power Loss" }, \ + { CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_EVENT_SHUTDOWN, \ + "Write Persistency Loss in Event of Shutdown" }, \ + { CXL_DHI_MS_WRITE_PERSISTENCY_LOSS_IMMINENT, \ + "Write Persistency Loss Imminent" }, \ + { CXL_DHI_MS_WRITE_ALL_DATA_LOSS_EVENT_POWER_LOSS, \ + "All Data Loss in Event of Power Loss" }, \ + { CXL_DHI_MS_WRITE_ALL_DATA_LOSS_EVENT_SHUTDOWN, \ + "All Data loss in the Event of Shutdown" }, \ + { CXL_DHI_MS_WRITE_ALL_DATA_LOSS_IMMINENT, \ + "All Data Loss Imminent" } \ +) + +#define CXL_DHI_AS_NORMAL 0x0 +#define CXL_DHI_AS_WARNING 0x1 +#define CXL_DHI_AS_CRITICAL 0x2 +#define show_add_status(as) __print_symbolic(as, \ + { CXL_DHI_AS_NORMAL, "Normal" }, \ + { CXL_DHI_AS_WARNING, "Warning" }, \ + { CXL_DHI_AS_CRITICAL, "Critical" } \ +) + +#define CXL_DHI_AS_LIFE_USED(as) (as & 0x3) +#define CXL_DHI_AS_DEV_TEMP(as) ((as & 0xC) >> 2) +#define CXL_DHI_AS_COR_VOL_ERR_CNT(as) ((as & 0x10) >> 4) +#define CXL_DHI_AS_COR_PER_ERR_CNT(as) ((as & 0x20) >> 5) + +TRACE_EVENT(cxl_mem_mod_event, + + TP_PROTO(const char *dev_name, enum cxl_event_log_type log, + struct cxl_evt_mem_mod_rec *rec), + + TP_ARGS(dev_name, log, rec), + + TP_STRUCT__entry( + /* Common */ + __string(dev_name, dev_name) + __field(int, log) + __array(u8, id, UUID_SIZE) + __field(u32, flags) + __field(u16, handle) + __field(u16, related_handle) + __field(u64, timestamp) + + /* Memory Module Event */ + __field(u8, event_type) + + /* Device Health Info */ + __field(u8, health_status) + __field(u8, media_status) + __field(u8, life_used) + __field(u32, dirty_shutdown_cnt) + __field(u32, cor_vol_err_cnt) + __field(u32, cor_per_err_cnt) + __field(s16, device_temp) + __field(u8, add_status) + ), + + TP_fast_assign( + /* Common */ + __assign_str(dev_name, dev_name); + memcpy(__entry->id, &rec->hdr.id, UUID_SIZE); + __entry->log = log; + __entry->flags = le32_to_cpu(rec->hdr.flags_length) >> 8; + __entry->handle = le16_to_cpu(rec->hdr.handle); + __entry->related_handle = le16_to_cpu(rec->hdr.related_handle); + __entry->timestamp = le64_to_cpu(rec->hdr.timestamp); + + /* Memory Module Event */ + __entry->event_type = rec->event_type; + + /* Device Health Info */ + __entry->health_status = rec->info.health_status; + __entry->media_status = rec->info.media_status; + __entry->life_used = rec->info.life_used; + __entry->dirty_shutdown_cnt = le32_to_cpu(rec->info.dirty_shutdown_cnt); + __entry->cor_vol_err_cnt = le32_to_cpu(rec->info.cor_vol_err_cnt); + __entry->cor_per_err_cnt = le32_to_cpu(rec->info.cor_per_err_cnt); + __entry->device_temp = le16_to_cpu(rec->info.device_temp); + __entry->add_status = rec->info.add_status; + ), + + TP_printk("%s: %s time=%llu id=%pUl handle=%x related_handle=%x hdr_flags='%s': " \ + "evt_type='%s' health_status='%s' media_status='%s' as_life_used=%s " \ + "as_dev_temp=%s as_cor_vol_err_cnt=%s as_cor_per_err_cnt=%s " \ + "life_used=%u dev_temp=%d dirty_shutdown_cnt=%u cor_vol_err_cnt=%u " \ + "cor_per_err_cnt=%u", + __get_str(dev_name), show_log_type(__entry->log), + __entry->timestamp, __entry->id, __entry->handle, + __entry->related_handle, show_hdr_flags(__entry->flags), + + show_dev_evt_type(__entry->event_type), + show_health_status_flags(__entry->health_status), + show_media_status(__entry->media_status), + show_add_status(CXL_DHI_AS_LIFE_USED(__entry->add_status)), + show_add_status(CXL_DHI_AS_DEV_TEMP(__entry->add_status)), + show_add_status(CXL_DHI_AS_COR_VOL_ERR_CNT(__entry->add_status)), + show_add_status(CXL_DHI_AS_COR_PER_ERR_CNT(__entry->add_status)), + __entry->life_used, __entry->device_temp, + __entry->dirty_shutdown_cnt, __entry->cor_vol_err_cnt, + __entry->cor_per_err_cnt) +); + + #endif /* _CXL_TRACE_EVENTS_H */ /* This part must be outside protection */