From patchwork Wed Nov 29 18:00:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ira Weiny X-Patchwork-Id: 748298 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="FOi1AVEu" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E85890; Wed, 29 Nov 2023 10:00:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701280852; x=1732816852; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=olvX8d7ZL93fT62n+PNYEIATwB20pg0Bo85Sb+jaZWk=; b=FOi1AVEuIdfjsVZRTCutr3kdEilVHnI2nTtHg3uyV8G6Cje+jyKlXQ/r m2SerLIFGeUXzjyuuAkw7aWorhTESPgN9c8/YMn29cDLycMZlc4zJBZdE 8MKiYSqMYIAWfH9pr8Eb5WCKT7Hmt54NT0pQd8Y2amMOlO4iL7Fk3tK1g wGw9Mk7qsb+GCIW1NI+d2+0tvE03LlwygQ29NxD0VDQnu4Qy32FeyZrhp +giKKAeOoa+9LGzAeq3Mlb+1pI+j19GrYlfYZJuyNd6ldijmJCkZXE8i9 WX0ioRMIDagDivpwGNnv3dNwem0vsgbcxjMnH7/QTqTyHAyHW8dLg1PLl A==; X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="457524486" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="457524486" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 10:00:51 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10909"; a="835096126" X-IronPort-AV: E=Sophos;i="6.04,237,1695711600"; d="scan'208";a="835096126" Received: from iweiny-desk3.amr.corp.intel.com (HELO localhost) ([10.212.127.168]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Nov 2023 10:00:51 -0800 From: Ira Weiny Date: Wed, 29 Nov 2023 10:00:44 -0800 Subject: [PATCH 4/6] cxl/events: Create a CXL event union 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-v1-4-d19f1ac18ab6@intel.com> References: <20230601-cxl-cper-v1-0-d19f1ac18ab6@intel.com> In-Reply-To: <20230601-cxl-cper-v1-0-d19f1ac18ab6@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=1701280847; l=6756; i=ira.weiny@intel.com; s=20221222; h=from:subject:message-id; bh=olvX8d7ZL93fT62n+PNYEIATwB20pg0Bo85Sb+jaZWk=; b=I639qumIJ8cjweUCijK9+k4SjkfxiGGtn5fvSSsWTIdffOuz+imEwV25jvnpIEiS0Q3nxCesk ddAeACfOp3vDujFVd1CCqIEcVojFktaLx4O/pE2Y+Vo/kbUsxu9ugOw X-Developer-Key: i=ira.weiny@intel.com; a=ed25519; pk=brwqReAJklzu/xZ9FpSsMPSQ/qkSalbg6scP3w809Ec= 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 --- Changes from RFC: [iweiny: ensure event union is packed] --- 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(-) diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 9ad8cbfca952..5ccc3843b736 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -864,26 +864,17 @@ 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, &gen_media_event_uuid)) { - struct cxl_event_gen_media *rec = - (struct cxl_event_gen_media *)record; - - trace_cxl_general_media(cxlmd, type, id, rec); - } else if (uuid_equal(id, &dram_event_uuid)) { - struct cxl_event_dram *rec = (struct cxl_event_dram *)record; - - trace_cxl_dram(cxlmd, type, id, 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(cxlmd, type, id, rec); - } else { - /* For unknown record types print just the header */ - trace_cxl_generic_event(cxlmd, type, id, record); - } + if (uuid_equal(id, &gen_media_event_uuid)) + trace_cxl_general_media(cxlmd, type, id, &evt->gen_media); + else if (uuid_equal(id, &dram_event_uuid)) + trace_cxl_dram(cxlmd, type, id, &evt->dram); + else if (uuid_equal(id, &mem_mod_event_uuid)) + trace_cxl_memory_module(cxlmd, type, id, &evt->mem_module); + else + trace_cxl_generic_event(cxlmd, type, id, &evt->generic); } static int cxl_clear_event_record(struct cxl_memdev_state *mds, @@ -926,7 +917,10 @@ 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 2aef185f4cd0..3d007f0472f2 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 @@ -235,8 +235,8 @@ TRACE_EVENT(cxl_generic_event, ), TP_fast_assign( - CXL_EVT_TP_fast_assign(cxlmd, log, uuid, rec->hdr); - memcpy(__entry->data, &rec->data, CXL_EVENT_RECORD_DATA_LENGTH); + CXL_EVT_TP_fast_assign(cxlmd, log, uuid, gen_rec->hdr); + 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 ebb00ead1496..18dab4d90dc8 100644 --- a/include/linux/cxl-event.h +++ b/include/linux/cxl-event.h @@ -18,13 +18,8 @@ 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; @@ -97,4 +92,20 @@ 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 e7113edfbfa5..39681372484a 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 {