Messages in this thread Patch in this message | | | From | ira.weiny@intel ... | Subject | [RFC PATCH 9/9] cxl/test: Simulate event log overflow | Date | Fri, 12 Aug 2022 22:32:43 -0700 |
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From: Ira Weiny <ira.weiny@intel.com>
Log overflow is marked by a separate trace message.
Simulate a log with lots of messages and flag overflow until it is drained a bit.
Signed-off-by: Ira Weiny <ira.weiny@intel.com> --- tools/testing/cxl/test/mem.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index c5d7857ae2e5..87e6b10896c9 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -244,6 +244,15 @@ static void event_store_add_event(struct mock_event_store *es, log->nr_events++; } +static u16 log_overflow(struct mock_event_log *log) +{ + int cnt = log_rec_left(log) - 5; + + if (cnt < 0) + return 0; + return cnt; +} + /* * Get and clear event only handle 1 record at a time as this is what is * currently implemented in the main code. @@ -253,6 +262,7 @@ static int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) struct cxl_get_event_payload *pl; struct mock_event_log *log; u8 log_type; + u16 nr_overflow; /* Valid request? */ if (cmd->size_in != 1) @@ -278,6 +288,20 @@ static int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) if (log_rec_left(log) > 1) pl->flags |= CXL_GET_EVENT_FLAG_MORE_RECORDS; + nr_overflow = log_overflow(log); + if (nr_overflow) { + u64 ns; + + pl->flags |= CXL_GET_EVENT_FLAG_OVERFLOW; + pl->overflow_err_count = cpu_to_le16(nr_overflow); + ns = ktime_get_real_ns(); + ns -= 5000000000; /* 5s ago */ + pl->first_overflow_timestamp = cpu_to_le64(ns); + ns = ktime_get_real_ns(); + ns -= 1000000000; /* 1s ago */ + pl->last_overflow_timestamp = cpu_to_le64(ns); + } + memcpy(&pl->record, get_cur_event(log), sizeof(pl->record)); pl->record.hdr.handle = get_cur_event_handle(log); return 0; @@ -483,6 +507,18 @@ static void devm_cxl_mock_event_logs(struct cxl_memdev *cxlmd) event_store_add_event(es, CXL_EVENT_TYPE_INFO, (struct cxl_event_record_raw *)&mem_mod_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &maint_needed); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&gen_media); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&mem_mod_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(es, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram_rec); + event_store_add_event(es, CXL_EVENT_TYPE_FATAL, &hardware_replace); event_store_add_event(es, CXL_EVENT_TYPE_FATAL, (struct cxl_event_record_raw *)&dram_rec); -- 2.35.3
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