From: ira.weiny@intel.com
To: Dan Williams <dan.j.williams@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ben Widawsky <bwidawsk@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Davidlohr Bueso <dave@stgolabs.net>,
Dave Jiang <dave.jiang@intel.com>,
linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org
Subject: [PATCH V2 11/11] cxl/test: Simulate event log overflow
Date: Wed, 30 Nov 2022 16:27:19 -0800 [thread overview]
Message-ID: <20221201002719.2596558-12-ira.weiny@intel.com> (raw)
In-Reply-To: <20221201002719.2596558-1-ira.weiny@intel.com>
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
next prev parent reply other threads:[~2022-12-01 0:28 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-01 0:27 [PATCH V2 00/11] CXL: Process event logs ira.weiny
2022-12-01 0:27 ` [PATCH V2 01/11] cxl/pci: Add generic MSI-X/MSI irq support ira.weiny
2022-12-01 10:18 ` Jonathan Cameron
2022-12-01 18:37 ` Dave Jiang
2022-12-02 0:23 ` Dan Williams
2022-12-02 0:34 ` Ira Weiny
2022-12-02 2:00 ` Dan Williams
2022-12-02 13:04 ` Jonathan Cameron
2022-12-01 0:27 ` [PATCH V2 02/11] cxl/mem: Implement Get Event Records command ira.weiny
2022-12-01 13:06 ` Jonathan Cameron
2022-12-01 15:10 ` Ira Weiny
2022-12-01 17:38 ` Steven Rostedt
2022-12-02 0:09 ` Ira Weiny
2022-12-02 4:40 ` Steven Rostedt
2022-12-02 5:00 ` Steven Rostedt
2022-12-02 21:31 ` Ira Weiny
2022-12-02 1:39 ` Dan Williams
2022-12-02 21:47 ` Ira Weiny
2022-12-03 21:33 ` Dan Williams
2022-12-01 0:27 ` [PATCH V2 03/11] cxl/mem: Implement Clear " ira.weiny
2022-12-01 13:26 ` Jonathan Cameron
2022-12-01 15:30 ` Ira Weiny
2022-12-02 2:29 ` Dan Williams
2022-12-02 13:18 ` Jonathan Cameron
2022-12-02 13:34 ` Steven Rostedt
2022-12-02 19:27 ` Dan Williams
2022-12-02 21:28 ` Ira Weiny
2022-12-02 23:49 ` Ira Weiny
2022-12-03 1:14 ` Dan Williams
2022-12-06 7:35 ` Ira Weiny
2022-12-01 0:27 ` [PATCH V2 04/11] cxl/mem: Clear events on driver load ira.weiny
2022-12-01 13:30 ` Jonathan Cameron
2022-12-01 17:02 ` Ira Weiny
2022-12-02 2:48 ` Dan Williams
2022-12-02 16:34 ` Ira Weiny
2022-12-02 23:34 ` Dan Williams
2022-12-03 21:00 ` Ira Weiny
2022-12-01 0:27 ` [PATCH V2 05/11] cxl/mem: Trace General Media Event Record ira.weiny
2022-12-01 18:54 ` Dave Jiang
2022-12-02 6:18 ` Dan Williams
2022-12-01 0:27 ` [PATCH V2 06/11] cxl/mem: Trace DRAM " ira.weiny
2022-12-01 18:55 ` Dave Jiang
2022-12-01 0:27 ` [PATCH V2 07/11] cxl/mem: Trace Memory Module " ira.weiny
2022-12-01 13:31 ` Jonathan Cameron
2022-12-01 18:57 ` Dave Jiang
2022-12-02 6:25 ` Dan Williams
2022-12-01 0:27 ` [PATCH V2 08/11] cxl/mem: Wire up event interrupts ira.weiny
2022-12-01 14:21 ` Jonathan Cameron
2022-12-01 17:23 ` Ira Weiny
2022-12-01 18:35 ` Davidlohr Bueso
2022-12-02 7:37 ` Dan Williams
2022-12-02 14:19 ` Jonathan Cameron
2022-12-02 19:43 ` Dan Williams
2022-12-05 13:01 ` Jonathan Cameron
2022-12-05 16:35 ` Dan Williams
2022-12-06 9:38 ` Jonathan Cameron
2022-12-01 0:27 ` [PATCH V2 09/11] cxl/test: Add generic mock events ira.weiny
2022-12-01 14:37 ` Jonathan Cameron
2022-12-01 17:49 ` Ira Weiny
2022-12-02 8:07 ` Dan Williams
2022-12-01 0:27 ` [PATCH V2 10/11] cxl/test: Add specific events ira.weiny
2022-12-01 21:00 ` Dave Jiang
2022-12-01 0:27 ` ira.weiny [this message]
2022-12-01 21:28 ` [PATCH V2 11/11] cxl/test: Simulate event log overflow Dave Jiang
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