From patchwork Mon Dec 12 07:06:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 13070781 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 9E5D2C04FDE for ; Mon, 12 Dec 2022 07:07:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231516AbiLLHHM (ORCPT ); Mon, 12 Dec 2022 02:07:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231448AbiLLHGl (ORCPT ); Mon, 12 Dec 2022 02:06:41 -0500 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 88CFD265C; Sun, 11 Dec 2022 23:06:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1670828799; x=1702364799; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6PlK6/NmEclbxY7vd6cg8ISbk2uYyVDk/5z01VC8z1c=; b=Up7BDaBU7w10ChzXB+qzPCImQOXoUV99eUio7acq6ArE7eV16/7piNq/ zD2OU6TPiIbjb86LPHUyjEMLpehq8zACE/GNOHZs/YNaezYoJslW42oqu rnrwvMYn/LKhZ8VadHSpDMdxPxGUcEiCKtLvP04ZNy/DuQitZIB+S4lo1 +c2ACkZuil1S6J5kLljDovBXkO4AMoGxPMuwLkm06PaNpwyula5WNTakA /hlWkIkOkpZt5pr8Ur5pmhrxl3ftEToHe3EnNMHq+efDd76m0CU/vc5qe fRxfvhWdpe8FfIiY6KUm6ekpOF3L6tr4WTefA5WViZRT3xBkRphmH6gAZ g==; X-IronPort-AV: E=McAfee;i="6500,9779,10558"; a="317811861" X-IronPort-AV: E=Sophos;i="5.96,237,1665471600"; d="scan'208";a="317811861" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2022 23:06:39 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10558"; a="641643100" X-IronPort-AV: E=Sophos;i="5.96,237,1665471600"; d="scan'208";a="641643100" Received: from iweiny-mobl.amr.corp.intel.com (HELO localhost) ([10.209.168.6]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2022 23:06:38 -0800 From: ira.weiny@intel.com To: Dan Williams Cc: Ira Weiny , Bjorn Helgaas , Alison Schofield , Vishal Verma , Davidlohr Bueso , Jonathan Cameron , Dave Jiang , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org Subject: [PATCH V4 6/9] cxl/mem: Trace Memory Module Event Record Date: Sun, 11 Dec 2022 23:06:24 -0800 Message-Id: <20221212070627.1372402-7-ira.weiny@intel.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221212070627.1372402-1-ira.weiny@intel.com> References: <20221212070627.1372402-1-ira.weiny@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Ira Weiny CXL rev 3.0 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. Reviewed-by: Dan Williams Signed-off-by: Ira Weiny --- Changes from V3: Dan Use if/else if/else instead of return --- drivers/cxl/core/mbox.c | 13 ++++ drivers/cxl/core/trace.h | 143 +++++++++++++++++++++++++++++++++++++++ drivers/cxl/cxlmem.h | 26 +++++++ 3 files changed, 182 insertions(+) diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index be66cb5816e5..b011804ed994 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -734,6 +734,14 @@ 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 rev 3.0 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_event_trace_record(const struct device *dev, enum cxl_event_log_type type, struct cxl_event_record_raw *record) @@ -749,6 +757,11 @@ static void cxl_event_trace_record(const struct device *dev, struct cxl_event_dram *rec = (struct cxl_event_dram *)record; trace_cxl_dram(dev, type, rec); + } else if (uuid_equal(id, &mem_mod_event_uuid)) { + struct cxl_event_mem_module *rec = + (struct cxl_event_mem_module *)record; + + trace_cxl_memory_module(dev, type, rec); } else { /* For unknown record types print just the header */ trace_cxl_generic_event(dev, type, record); diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h index b6321cfb1d9f..ebb4c8ce8587 100644 --- a/drivers/cxl/core/trace.h +++ b/drivers/cxl/core/trace.h @@ -439,6 +439,149 @@ TRACE_EVENT(cxl_dram, ) ); +/* + * Memory Module Event Record - MMER + * + * CXL res 3.0 section 8.2.9.2.1.3; Table 8-45 + */ +#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" } \ +) + +/* + * Device Health Information - DHI + * + * CXL res 3.0 section 8.2.9.8.3.1; Table 8-100 + */ +#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_two_bit_status(as) __print_symbolic(as, \ + { CXL_DHI_AS_NORMAL, "Normal" }, \ + { CXL_DHI_AS_WARNING, "Warning" }, \ + { CXL_DHI_AS_CRITICAL, "Critical" } \ +) +#define show_one_bit_status(as) __print_symbolic(as, \ + { CXL_DHI_AS_NORMAL, "Normal" }, \ + { CXL_DHI_AS_WARNING, "Warning" } \ +) + +#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_memory_module, + + TP_PROTO(const struct device *dev, enum cxl_event_log_type log, + struct cxl_event_mem_module *rec), + + TP_ARGS(dev, log, rec), + + TP_STRUCT__entry( + CXL_EVT_TP_entry + + /* 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( + CXL_EVT_TP_fast_assign(dev, log, rec->hdr); + + /* 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 = get_unaligned_le32(rec->info.dirty_shutdown_cnt); + __entry->cor_vol_err_cnt = get_unaligned_le32(rec->info.cor_vol_err_cnt); + __entry->cor_per_err_cnt = get_unaligned_le32(rec->info.cor_per_err_cnt); + __entry->device_temp = get_unaligned_le16(rec->info.device_temp); + __entry->add_status = rec->info.add_status; + ), + + CXL_EVT_TP_printk("event_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 device_temp=%d " \ + "dirty_shutdown_cnt=%u cor_vol_err_cnt=%u cor_per_err_cnt=%u", + show_dev_evt_type(__entry->event_type), + show_health_status_flags(__entry->health_status), + show_media_status(__entry->media_status), + show_two_bit_status(CXL_DHI_AS_LIFE_USED(__entry->add_status)), + show_two_bit_status(CXL_DHI_AS_DEV_TEMP(__entry->add_status)), + show_one_bit_status(CXL_DHI_AS_COR_VOL_ERR_CNT(__entry->add_status)), + show_one_bit_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_EVENTS_H */ #define TRACE_INCLUDE_FILE trace diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h index 78c453278910..459f161c7c86 100644 --- a/drivers/cxl/cxlmem.h +++ b/drivers/cxl/cxlmem.h @@ -491,6 +491,32 @@ struct cxl_event_dram { 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;