scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 234 insertions, 0 deletions

diff --git a/include/trace/events/devlink.h b/include/trace/events/devlink.h
new file mode 100644
index 000000000..4f8edf77d
--- /dev/null
+++ b/include/trace/events/devlink.h
@@ -0,0 +1,234 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if IS_ENABLED(CONFIG_NET_DEVLINK)
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM devlink
+
+#if !defined(_TRACE_DEVLINK_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_DEVLINK_H
+
+#include <linux/device.h>
+#include <net/devlink.h>
+#include <linux/tracepoint.h>
+
+/*
+ * Tracepoint for devlink hardware message:
+ */
+TRACE_EVENT(devlink_hwmsg,
+	TP_PROTO(const struct devlink *devlink, bool incoming,
+		 unsigned long type, const u8 *buf, size_t len),
+
+	TP_ARGS(devlink, incoming, type, buf, len),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__field(bool, incoming)
+		__field(unsigned long, type)
+		__dynamic_array(u8, buf, len)
+		__field(size_t, len)
+	),
+
+	TP_fast_assign(
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__entry->incoming = incoming;
+		__entry->type = type;
+		memcpy(__get_dynamic_array(buf), buf, len);
+		__entry->len = len;
+	),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s incoming=%d type=%lu buf=0x[%*phD] len=%zu",
+		  __get_str(bus_name), __get_str(dev_name),
+		  __get_str(driver_name), __entry->incoming, __entry->type,
+		  (int) __entry->len, __get_dynamic_array(buf), __entry->len)
+);
+
+/*
+ * Tracepoint for devlink hardware error:
+ */
+TRACE_EVENT(devlink_hwerr,
+	TP_PROTO(const struct devlink *devlink, int err, const char *msg),
+
+	TP_ARGS(devlink, err, msg),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__field(int, err)
+		__string(msg, msg)
+		),
+
+	TP_fast_assign(
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__entry->err = err;
+		__assign_str(msg);
+		),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s err=%d %s",
+			__get_str(bus_name), __get_str(dev_name),
+			__get_str(driver_name), __entry->err, __get_str(msg))
+);
+
+/*
+ * Tracepoint for devlink health message:
+ */
+TRACE_EVENT(devlink_health_report,
+	TP_PROTO(const struct devlink *devlink, const char *reporter_name,
+		 const char *msg),
+
+	TP_ARGS(devlink, reporter_name, msg),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__string(reporter_name, reporter_name)
+		__string(msg, msg)
+	),
+
+	TP_fast_assign(
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__assign_str(reporter_name);
+		__assign_str(msg);
+	),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: %s",
+		  __get_str(bus_name), __get_str(dev_name),
+		  __get_str(driver_name), __get_str(reporter_name),
+		  __get_str(msg))
+);
+
+/*
+ * Tracepoint for devlink health recover aborted message:
+ */
+TRACE_EVENT(devlink_health_recover_aborted,
+	TP_PROTO(const struct devlink *devlink, const char *reporter_name,
+		 bool health_state, u64 time_since_last_recover),
+
+	TP_ARGS(devlink, reporter_name, health_state, time_since_last_recover),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__string(reporter_name, reporter_name)
+		__field(bool, health_state)
+		__field(u64, time_since_last_recover)
+	),
+
+	TP_fast_assign(
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__assign_str(reporter_name);
+		__entry->health_state = health_state;
+		__entry->time_since_last_recover = time_since_last_recover;
+	),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: health_state=%d time_since_last_recover=%llu recover aborted",
+		  __get_str(bus_name), __get_str(dev_name),
+		  __get_str(driver_name), __get_str(reporter_name),
+		  __entry->health_state,
+		  __entry->time_since_last_recover)
+);
+
+/*
+ * Tracepoint for devlink health reporter state update:
+ */
+TRACE_EVENT(devlink_health_reporter_state_update,
+	TP_PROTO(const struct devlink *devlink, const char *reporter_name,
+		 bool new_state),
+
+	TP_ARGS(devlink, reporter_name, new_state),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__string(reporter_name, reporter_name)
+		__field(u8, new_state)
+	),
+
+	TP_fast_assign(
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__assign_str(reporter_name);
+		__entry->new_state = new_state;
+	),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s reporter_name=%s: new_state=%d",
+		  __get_str(bus_name), __get_str(dev_name),
+		  __get_str(driver_name), __get_str(reporter_name),
+		  __entry->new_state)
+);
+
+/*
+ * Tracepoint for devlink packet trap:
+ */
+TRACE_EVENT(devlink_trap_report,
+	TP_PROTO(const struct devlink *devlink, struct sk_buff *skb,
+		 const struct devlink_trap_metadata *metadata),
+
+	TP_ARGS(devlink, skb, metadata),
+
+	TP_STRUCT__entry(
+		__string(bus_name, devlink_bus_name(devlink))
+		__string(dev_name, devlink_dev_name(devlink))
+		__string(driver_name, devlink_dev_driver_name(devlink))
+		__string(trap_name, metadata->trap_name)
+		__string(trap_group_name, metadata->trap_group_name)
+		__array(char, input_dev_name, IFNAMSIZ)
+	),
+
+	TP_fast_assign(
+		struct net_device *input_dev = metadata->input_dev;
+
+		__assign_str(bus_name);
+		__assign_str(dev_name);
+		__assign_str(driver_name);
+		__assign_str(trap_name);
+		__assign_str(trap_group_name);
+		strscpy(__entry->input_dev_name, input_dev ? input_dev->name : "NULL", IFNAMSIZ);
+	),
+
+	TP_printk("bus_name=%s dev_name=%s driver_name=%s trap_name=%s "
+		  "trap_group_name=%s input_dev_name=%s", __get_str(bus_name),
+		  __get_str(dev_name), __get_str(driver_name),
+		  __get_str(trap_name), __get_str(trap_group_name),
+		  __entry->input_dev_name)
+);
+
+#endif /* _TRACE_DEVLINK_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
+
+#else /* CONFIG_NET_DEVLINK */
+
+#if !defined(_TRACE_DEVLINK_H)
+#define _TRACE_DEVLINK_H
+
+#include <net/devlink.h>
+
+static inline void trace_devlink_hwmsg(const struct devlink *devlink,
+				       bool incoming, unsigned long type,
+				       const u8 *buf, size_t len)
+{
+}
+
+static inline void trace_devlink_hwerr(const struct devlink *devlink,
+				       int err, const char *msg)
+{
+}
+#endif /* _TRACE_DEVLINK_H */
+
+#endif