Messages in this thread Patch in this message | | | From | ira.weiny@intel ... | Subject | [PATCH V2 11/11] cxl/test: Simulate event log overflow | Date | Wed, 30 Nov 2022 16:27:19 -0800 |
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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.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com>
--- Changes from RFC Adjust for new struct changes --- tools/testing/cxl/test/events.c | 49 ++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-)
diff --git a/tools/testing/cxl/test/events.c b/tools/testing/cxl/test/events.c index 0bcc485e07da..ceabefb526c2 100644 --- a/tools/testing/cxl/test/events.c +++ b/tools/testing/cxl/test/events.c @@ -15,6 +15,8 @@ struct mock_event_log { u16 clear_idx; u16 cur_idx; u16 nr_events; + u16 nr_overflow; + u16 overflow_reset; struct cxl_event_record_raw *events[CXL_TEST_EVENT_CNT_MAX]; }; @@ -45,6 +47,7 @@ void reset_event_log(struct mock_event_log *log) { log->cur_idx = 0; log->clear_idx = 0; + log->nr_overflow = log->overflow_reset; } /* Handle can never be 0 use 1 based indexing for handle */ @@ -76,8 +79,12 @@ static void event_store_add_event(struct mock_event_store *mes, return; log = &mes->mock_logs[log_type]; - if (WARN_ON(log->nr_events >= CXL_TEST_EVENT_CNT_MAX)) + + if ((log->nr_events + 1) > CXL_TEST_EVENT_CNT_MAX) { + log->nr_overflow++; + log->overflow_reset = log->nr_overflow; return; + } log->events[log->nr_events] = event; log->nr_events++; @@ -87,6 +94,7 @@ 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; + u16 nr_overflow; u8 log_type; int i; @@ -118,6 +126,21 @@ int mock_get_event(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd) if (!log_empty(log)) pl->flags |= CXL_GET_EVENT_FLAG_MORE_RECORDS; + if (log->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); + + log->nr_overflow = 0; + } + return 0; } EXPORT_SYMBOL_GPL(mock_get_event); @@ -297,6 +320,30 @@ u32 cxl_mock_add_event_logs(struct cxl_dev_state *cxlds) (struct cxl_event_record_raw *)&mem_module); mes->ev_status |= CXLDEV_EVENT_STATUS_INFO; + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &maint_needed); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&gen_media); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&mem_module); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, + (struct cxl_event_record_raw *)&dram); + /* Overflow this log */ + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + event_store_add_event(mes, CXL_EVENT_TYPE_FAIL, &hardware_replace); + mes->ev_status |= CXLDEV_EVENT_STATUS_FAIL; + event_store_add_event(mes, CXL_EVENT_TYPE_FATAL, &hardware_replace); event_store_add_event(mes, CXL_EVENT_TYPE_FATAL, (struct cxl_event_record_raw *)&dram); -- 2.37.2
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