From 4c115c9c1f81a6efe2bd68fcefec6836f7f3dc71 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Wed, 20 Dec 2023 16:17:30 -0800 Subject: cxl/events: Create common event UUID defines Dan points out in review that the cxl_test code could be made better through the use of UUID's defines rather than being open coded.[1] Create UUID defines and use them rather than open coding them. Suggested-by: Dan Williams Signed-off-by: Ira Weiny Link: http://lore.kernel.org/r/65738d09e30e2_45e0129451@dwillia2-xfh.jf.intel.com.notmuch [1] Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-3-1bb8a4ca2c7a@intel.com [djbw: clang-format uuid definitions] Reviewed-by: Jonathan Cameron Acked-by: Ard Biesheuvel Signed-off-by: Dan Williams --- tools/testing/cxl/test/mem.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'tools/testing') diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index ee61fa3a2411..5a95b04b329a 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -362,8 +362,7 @@ struct cxl_event_record_raw hardware_replace = { struct cxl_event_gen_media gen_media = { .hdr = { - .id = UUID_INIT(0xfbcd0a77, 0xc260, 0x417f, - 0x85, 0xa9, 0x08, 0x8b, 0x16, 0x21, 0xeb, 0xa6), + .id = CXL_EVENT_GEN_MEDIA_UUID, .length = sizeof(struct cxl_event_gen_media), .flags[0] = CXL_EVENT_RECORD_FLAG_PERMANENT, /* .handle = Set dynamically */ @@ -380,8 +379,7 @@ struct cxl_event_gen_media gen_media = { struct cxl_event_dram dram = { .hdr = { - .id = UUID_INIT(0x601dcbb3, 0x9c06, 0x4eab, - 0xb8, 0xaf, 0x4e, 0x9b, 0xfb, 0x5c, 0x96, 0x24), + .id = CXL_EVENT_DRAM_UUID, .length = sizeof(struct cxl_event_dram), .flags[0] = CXL_EVENT_RECORD_FLAG_PERF_DEGRADED, /* .handle = Set dynamically */ @@ -400,8 +398,7 @@ struct cxl_event_dram dram = { struct cxl_event_mem_module mem_module = { .hdr = { - .id = UUID_INIT(0xfe927475, 0xdd59, 0x4339, - 0xa5, 0x86, 0x79, 0xba, 0xb1, 0x13, 0xb7, 0x74), + .id = CXL_EVENT_MEM_MODULE_UUID, .length = sizeof(struct cxl_event_mem_module), /* .handle = Set dynamically */ .related_handle = cpu_to_le16(0), -- cgit v1.2.3 From 6eade110754c085cee9e46f4d87d2c3ea4e59e8c Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Wed, 20 Dec 2023 16:17:32 -0800 Subject: cxl/events: Separate UUID from event structures The UEFI CXL CPER structure does not include the UUID. Now that the UUID is passed separately to the trace event there is no need to have the UUID in those structures. Move UUID from the event record header to the raw structures. Adjust cxl-test to Create dummy structures for creating test records. Signed-off-by: Ira Weiny Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-5-1bb8a4ca2c7a@intel.com Reviewed-by: Jonathan Cameron Acked-by: Ard Biesheuvel Signed-off-by: Dan Williams --- drivers/cxl/core/mbox.c | 2 +- include/linux/cxl-event.h | 6 +- tools/testing/cxl/test/mem.c | 129 +++++++++++++++++++++++++------------------ 3 files changed, 81 insertions(+), 56 deletions(-) (limited to 'tools/testing') diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 5f3681de10de..4c5161896826 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -840,7 +840,7 @@ static void cxl_event_trace_record(const struct cxl_memdev *cxlmd, enum cxl_event_log_type type, struct cxl_event_record_raw *record) { - uuid_t *id = &record->hdr.id; + uuid_t *id = &record->id; if (uuid_equal(id, &CXL_EVENT_GEN_MEDIA_UUID)) { struct cxl_event_gen_media *rec = diff --git a/include/linux/cxl-event.h b/include/linux/cxl-event.h index 0fc068123f8e..3d9b5954d0c1 100644 --- a/include/linux/cxl-event.h +++ b/include/linux/cxl-event.h @@ -8,7 +8,6 @@ * 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; @@ -18,8 +17,13 @@ struct cxl_event_record_hdr { u8 reserved[15]; } __packed; +/* + * Common Event Record Format + * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 + */ #define CXL_EVENT_RECORD_DATA_LENGTH 0x50 struct cxl_event_record_raw { + uuid_t id; struct cxl_event_record_hdr hdr; u8 data[CXL_EVENT_RECORD_DATA_LENGTH]; } __packed; diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 5a95b04b329a..9cc2b8ce1efd 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -337,9 +337,9 @@ static void cxl_mock_event_trigger(struct device *dev) } struct cxl_event_record_raw maint_needed = { + .id = UUID_INIT(0xBA5EBA11, 0xABCD, 0xEFEB, + 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), .hdr = { - .id = UUID_INIT(0xBA5EBA11, 0xABCD, 0xEFEB, - 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), .length = sizeof(struct cxl_event_record_raw), .flags[0] = CXL_EVENT_RECORD_FLAG_MAINT_NEEDED, /* .handle = Set dynamically */ @@ -349,9 +349,9 @@ struct cxl_event_record_raw maint_needed = { }; struct cxl_event_record_raw hardware_replace = { + .id = UUID_INIT(0xABCDEFEB, 0xBA11, 0xBA5E, + 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), .hdr = { - .id = UUID_INIT(0xABCDEFEB, 0xBA11, 0xBA5E, - 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), .length = sizeof(struct cxl_event_record_raw), .flags[0] = CXL_EVENT_RECORD_FLAG_HW_REPLACE, /* .handle = Set dynamically */ @@ -360,61 +360,82 @@ struct cxl_event_record_raw hardware_replace = { .data = { 0xDE, 0xAD, 0xBE, 0xEF }, }; -struct cxl_event_gen_media gen_media = { - .hdr = { - .id = CXL_EVENT_GEN_MEDIA_UUID, - .length = sizeof(struct cxl_event_gen_media), - .flags[0] = CXL_EVENT_RECORD_FLAG_PERMANENT, - /* .handle = Set dynamically */ - .related_handle = cpu_to_le16(0), +struct cxl_test_gen_media { + uuid_t id; + struct cxl_event_gen_media rec; +} __packed; + +struct cxl_test_gen_media gen_media = { + .id = CXL_EVENT_GEN_MEDIA_UUID, + .rec = { + .hdr = { + .length = sizeof(struct cxl_test_gen_media), + .flags[0] = CXL_EVENT_RECORD_FLAG_PERMANENT, + /* .handle = Set dynamically */ + .related_handle = cpu_to_le16(0), + }, + .phys_addr = cpu_to_le64(0x2000), + .descriptor = CXL_GMER_EVT_DESC_UNCORECTABLE_EVENT, + .type = CXL_GMER_MEM_EVT_TYPE_DATA_PATH_ERROR, + .transaction_type = CXL_GMER_TRANS_HOST_WRITE, + /* .validity_flags = */ + .channel = 1, + .rank = 30 }, - .phys_addr = cpu_to_le64(0x2000), - .descriptor = CXL_GMER_EVT_DESC_UNCORECTABLE_EVENT, - .type = CXL_GMER_MEM_EVT_TYPE_DATA_PATH_ERROR, - .transaction_type = CXL_GMER_TRANS_HOST_WRITE, - /* .validity_flags = */ - .channel = 1, - .rank = 30 }; -struct cxl_event_dram dram = { - .hdr = { - .id = CXL_EVENT_DRAM_UUID, - .length = sizeof(struct cxl_event_dram), - .flags[0] = CXL_EVENT_RECORD_FLAG_PERF_DEGRADED, - /* .handle = Set dynamically */ - .related_handle = cpu_to_le16(0), +struct cxl_test_dram { + uuid_t id; + struct cxl_event_dram rec; +} __packed; + +struct cxl_test_dram dram = { + .id = CXL_EVENT_DRAM_UUID, + .rec = { + .hdr = { + .length = sizeof(struct cxl_test_dram), + .flags[0] = CXL_EVENT_RECORD_FLAG_PERF_DEGRADED, + /* .handle = Set dynamically */ + .related_handle = cpu_to_le16(0), + }, + .phys_addr = cpu_to_le64(0x8000), + .descriptor = CXL_GMER_EVT_DESC_THRESHOLD_EVENT, + .type = CXL_GMER_MEM_EVT_TYPE_INV_ADDR, + .transaction_type = CXL_GMER_TRANS_INTERNAL_MEDIA_SCRUB, + /* .validity_flags = */ + .channel = 1, + .bank_group = 5, + .bank = 2, + .column = {0xDE, 0xAD}, }, - .phys_addr = cpu_to_le64(0x8000), - .descriptor = CXL_GMER_EVT_DESC_THRESHOLD_EVENT, - .type = CXL_GMER_MEM_EVT_TYPE_INV_ADDR, - .transaction_type = CXL_GMER_TRANS_INTERNAL_MEDIA_SCRUB, - /* .validity_flags = */ - .channel = 1, - .bank_group = 5, - .bank = 2, - .column = {0xDE, 0xAD}, }; -struct cxl_event_mem_module mem_module = { - .hdr = { - .id = CXL_EVENT_MEM_MODULE_UUID, - .length = sizeof(struct cxl_event_mem_module), - /* .handle = Set dynamically */ - .related_handle = cpu_to_le16(0), +struct cxl_test_mem_module { + uuid_t id; + struct cxl_event_mem_module rec; +} __packed; + +struct cxl_test_mem_module mem_module = { + .id = CXL_EVENT_MEM_MODULE_UUID, + .rec = { + .hdr = { + .length = sizeof(struct cxl_test_mem_module), + /* .handle = Set dynamically */ + .related_handle = cpu_to_le16(0), + }, + .event_type = CXL_MMER_TEMP_CHANGE, + .info = { + .health_status = CXL_DHI_HS_PERFORMANCE_DEGRADED, + .media_status = CXL_DHI_MS_ALL_DATA_LOST, + .add_status = (CXL_DHI_AS_CRITICAL << 2) | + (CXL_DHI_AS_WARNING << 4) | + (CXL_DHI_AS_WARNING << 5), + .device_temp = { 0xDE, 0xAD}, + .dirty_shutdown_cnt = { 0xde, 0xad, 0xbe, 0xef }, + .cor_vol_err_cnt = { 0xde, 0xad, 0xbe, 0xef }, + .cor_per_err_cnt = { 0xde, 0xad, 0xbe, 0xef }, + } }, - .event_type = CXL_MMER_TEMP_CHANGE, - .info = { - .health_status = CXL_DHI_HS_PERFORMANCE_DEGRADED, - .media_status = CXL_DHI_MS_ALL_DATA_LOST, - .add_status = (CXL_DHI_AS_CRITICAL << 2) | - (CXL_DHI_AS_WARNING << 4) | - (CXL_DHI_AS_WARNING << 5), - .device_temp = { 0xDE, 0xAD}, - .dirty_shutdown_cnt = { 0xde, 0xad, 0xbe, 0xef }, - .cor_vol_err_cnt = { 0xde, 0xad, 0xbe, 0xef }, - .cor_per_err_cnt = { 0xde, 0xad, 0xbe, 0xef }, - } }; static int mock_set_timestamp(struct cxl_dev_state *cxlds, @@ -436,11 +457,11 @@ static int mock_set_timestamp(struct cxl_dev_state *cxlds, static void cxl_mock_add_event_logs(struct mock_event_store *mes) { put_unaligned_le16(CXL_GMER_VALID_CHANNEL | CXL_GMER_VALID_RANK, - &gen_media.validity_flags); + &gen_media.rec.validity_flags); put_unaligned_le16(CXL_DER_VALID_CHANNEL | CXL_DER_VALID_BANK_GROUP | CXL_DER_VALID_BANK | CXL_DER_VALID_COLUMN, - &dram.validity_flags); + &dram.rec.validity_flags); mes_add_event(mes, CXL_EVENT_TYPE_INFO, &maint_needed); mes_add_event(mes, CXL_EVENT_TYPE_INFO, -- cgit v1.2.3 From f9c683386f5bc0364615138ce2b14be50848dbcf Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Wed, 20 Dec 2023 16:17:33 -0800 Subject: cxl/events: Create a CXL event union The CXL CPER and event log records share everything but a UUID/GUID in their structures. Define a cxl_event union without the UUID/GUID to be shared between the CPER and event log record formats. Adjust the code to use this union. Signed-off-by: Ira Weiny Link: https://lore.kernel.org/r/20231220-cxl-cper-v5-6-1bb8a4ca2c7a@intel.com Reviewed-by: Jonathan Cameron Acked-by: Ard Biesheuvel Signed-off-by: Dan Williams --- drivers/cxl/core/mbox.c | 32 +++++++++++++------------------- drivers/cxl/core/trace.h | 8 ++++---- include/linux/cxl-event.h | 23 +++++++++++++++++------ tools/testing/cxl/test/mem.c | 31 ++++++++++++++++++------------- 4 files changed, 52 insertions(+), 42 deletions(-) (limited to 'tools/testing') diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 4c5161896826..06957696247b 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -840,26 +840,17 @@ static void cxl_event_trace_record(const struct cxl_memdev *cxlmd, enum cxl_event_log_type type, struct cxl_event_record_raw *record) { + union cxl_event *evt = &record->event; uuid_t *id = &record->id; - if (uuid_equal(id, &CXL_EVENT_GEN_MEDIA_UUID)) { - struct cxl_event_gen_media *rec = - (struct cxl_event_gen_media *)record; - - trace_cxl_general_media(cxlmd, type, rec); - } else if (uuid_equal(id, &CXL_EVENT_DRAM_UUID)) { - struct cxl_event_dram *rec = (struct cxl_event_dram *)record; - - trace_cxl_dram(cxlmd, type, rec); - } else if (uuid_equal(id, &CXL_EVENT_MEM_MODULE_UUID)) { - struct cxl_event_mem_module *rec = - (struct cxl_event_mem_module *)record; - - trace_cxl_memory_module(cxlmd, type, rec); - } else { - /* For unknown record types print just the header */ - trace_cxl_generic_event(cxlmd, type, id, record); - } + if (uuid_equal(id, &CXL_EVENT_GEN_MEDIA_UUID)) + trace_cxl_general_media(cxlmd, type, &evt->gen_media); + else if (uuid_equal(id, &CXL_EVENT_DRAM_UUID)) + trace_cxl_dram(cxlmd, type, &evt->dram); + else if (uuid_equal(id, &CXL_EVENT_MEM_MODULE_UUID)) + trace_cxl_memory_module(cxlmd, type, &evt->mem_module); + else + trace_cxl_generic_event(cxlmd, type, id, &evt->generic); } static int cxl_clear_event_record(struct cxl_memdev_state *mds, @@ -902,7 +893,10 @@ static int cxl_clear_event_record(struct cxl_memdev_state *mds, */ i = 0; for (cnt = 0; cnt < total; cnt++) { - payload->handles[i++] = get_pl->records[cnt].hdr.handle; + struct cxl_event_record_raw *raw = &get_pl->records[cnt]; + struct cxl_event_generic *gen = &raw->event.generic; + + payload->handles[i++] = gen->hdr.handle; dev_dbg(mds->cxlds.dev, "Event log '%d': Clearing %u\n", log, le16_to_cpu(payload->handles[i])); diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h index 312cfa9e0004..89445435303a 100644 --- a/drivers/cxl/core/trace.h +++ b/drivers/cxl/core/trace.h @@ -225,9 +225,9 @@ TRACE_EVENT(cxl_overflow, TRACE_EVENT(cxl_generic_event, TP_PROTO(const struct cxl_memdev *cxlmd, enum cxl_event_log_type log, - const uuid_t *uuid, struct cxl_event_record_raw *rec), + const uuid_t *uuid, struct cxl_event_generic *gen_rec), - TP_ARGS(cxlmd, log, uuid, rec), + TP_ARGS(cxlmd, log, uuid, gen_rec), TP_STRUCT__entry( CXL_EVT_TP_entry @@ -235,9 +235,9 @@ TRACE_EVENT(cxl_generic_event, ), TP_fast_assign( - CXL_EVT_TP_fast_assign(cxlmd, log, rec->hdr); + CXL_EVT_TP_fast_assign(cxlmd, log, gen_rec->hdr); memcpy(&__entry->hdr_uuid, uuid, sizeof(uuid_t)); - memcpy(__entry->data, &rec->data, CXL_EVENT_RECORD_DATA_LENGTH); + memcpy(__entry->data, gen_rec->data, CXL_EVENT_RECORD_DATA_LENGTH); ), CXL_EVT_TP_printk("%s", diff --git a/include/linux/cxl-event.h b/include/linux/cxl-event.h index 3d9b5954d0c1..4d6c05f535f8 100644 --- a/include/linux/cxl-event.h +++ b/include/linux/cxl-event.h @@ -17,13 +17,8 @@ struct cxl_event_record_hdr { u8 reserved[15]; } __packed; -/* - * Common Event Record Format - * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 - */ #define CXL_EVENT_RECORD_DATA_LENGTH 0x50 -struct cxl_event_record_raw { - uuid_t id; +struct cxl_event_generic { struct cxl_event_record_hdr hdr; u8 data[CXL_EVENT_RECORD_DATA_LENGTH]; } __packed; @@ -96,4 +91,20 @@ struct cxl_event_mem_module { u8 reserved[0x3d]; } __packed; +union cxl_event { + struct cxl_event_generic generic; + struct cxl_event_gen_media gen_media; + struct cxl_event_dram dram; + struct cxl_event_mem_module mem_module; +} __packed; + +/* + * Common Event Record Format; in event logs + * CXL rev 3.0 section 8.2.9.2.1; Table 8-42 + */ +struct cxl_event_record_raw { + uuid_t id; + union cxl_event event; +} __packed; + #endif /* _LINUX_CXL_EVENT_H */ diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 9cc2b8ce1efd..35ee41e435ab 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -251,7 +251,8 @@ static int mock_get_event(struct device *dev, struct cxl_mbox_cmd *cmd) for (i = 0; i < CXL_TEST_EVENT_CNT && !event_log_empty(log); i++) { memcpy(&pl->records[i], event_get_current(log), sizeof(pl->records[i])); - pl->records[i].hdr.handle = event_get_cur_event_handle(log); + pl->records[i].event.generic.hdr.handle = + event_get_cur_event_handle(log); log->cur_idx++; } @@ -339,25 +340,29 @@ static void cxl_mock_event_trigger(struct device *dev) struct cxl_event_record_raw maint_needed = { .id = UUID_INIT(0xBA5EBA11, 0xABCD, 0xEFEB, 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), - .hdr = { - .length = sizeof(struct cxl_event_record_raw), - .flags[0] = CXL_EVENT_RECORD_FLAG_MAINT_NEEDED, - /* .handle = Set dynamically */ - .related_handle = cpu_to_le16(0xa5b6), + .event.generic = { + .hdr = { + .length = sizeof(struct cxl_event_record_raw), + .flags[0] = CXL_EVENT_RECORD_FLAG_MAINT_NEEDED, + /* .handle = Set dynamically */ + .related_handle = cpu_to_le16(0xa5b6), + }, + .data = { 0xDE, 0xAD, 0xBE, 0xEF }, }, - .data = { 0xDE, 0xAD, 0xBE, 0xEF }, }; struct cxl_event_record_raw hardware_replace = { .id = UUID_INIT(0xABCDEFEB, 0xBA11, 0xBA5E, 0xa5, 0x5a, 0xa5, 0x5a, 0xa5, 0xa5, 0x5a, 0xa5), - .hdr = { - .length = sizeof(struct cxl_event_record_raw), - .flags[0] = CXL_EVENT_RECORD_FLAG_HW_REPLACE, - /* .handle = Set dynamically */ - .related_handle = cpu_to_le16(0xb6a5), + .event.generic = { + .hdr = { + .length = sizeof(struct cxl_event_record_raw), + .flags[0] = CXL_EVENT_RECORD_FLAG_HW_REPLACE, + /* .handle = Set dynamically */ + .related_handle = cpu_to_le16(0xb6a5), + }, + .data = { 0xDE, 0xAD, 0xBE, 0xEF }, }, - .data = { 0xDE, 0xAD, 0xBE, 0xEF }, }; struct cxl_test_gen_media { -- cgit v1.2.3