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, 338 insertions, 0 deletions

diff --git a/include/trace/events/net.h b/include/trace/events/net.h
new file mode 100644
index 000000000..dbc2c5598
--- /dev/null
+++ b/include/trace/events/net.h
@@ -0,0 +1,338 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM net
+
+#if !defined(_TRACE_NET_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_NET_H
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/tracepoint.h>
+#include <net/busy_poll.h>
+
+TRACE_EVENT(net_dev_start_xmit,
+
+	TP_PROTO(const struct sk_buff *skb, const struct net_device *dev),
+
+	TP_ARGS(skb, dev),
+
+	TP_STRUCT__entry(
+		__string(	name,			dev->name	)
+		__field(	u16,			queue_mapping	)
+		__field(	const void *,		skbaddr		)
+		__field(	bool,			vlan_tagged	)
+		__field(	u16,			vlan_proto	)
+		__field(	u16,			vlan_tci	)
+		__field(	u16,			protocol	)
+		__field(	u8,			ip_summed	)
+		__field(	unsigned int,		len		)
+		__field(	unsigned int,		data_len	)
+		__field(	int,			network_offset	)
+		__field(	bool,			transport_offset_valid)
+		__field(	int,			transport_offset)
+		__field(	u8,			tx_flags	)
+		__field(	u16,			gso_size	)
+		__field(	u16,			gso_segs	)
+		__field(	u16,			gso_type	)
+		__field(	u64,			net_cookie	)
+	),
+
+	TP_fast_assign(
+		__assign_str(name);
+		__entry->queue_mapping = skb->queue_mapping;
+		__entry->skbaddr = skb;
+		__entry->vlan_tagged = skb_vlan_tag_present(skb);
+		__entry->vlan_proto = ntohs(skb->vlan_proto);
+		__entry->vlan_tci = skb_vlan_tag_get(skb);
+		__entry->protocol = ntohs(skb->protocol);
+		__entry->ip_summed = skb->ip_summed;
+		__entry->len = skb->len;
+		__entry->data_len = skb->data_len;
+		__entry->network_offset = skb_network_offset(skb);
+		__entry->transport_offset_valid =
+			skb_transport_header_was_set(skb);
+		__entry->transport_offset = skb_transport_header_was_set(skb) ?
+			skb_transport_offset(skb) : 0;
+		__entry->tx_flags = skb_shinfo(skb)->tx_flags;
+		__entry->gso_size = skb_shinfo(skb)->gso_size;
+		__entry->gso_segs = skb_shinfo(skb)->gso_segs;
+		__entry->gso_type = skb_shinfo(skb)->gso_type;
+		__entry->net_cookie = dev_net(dev)->net_cookie;
+	),
+
+	TP_printk("dev=%s queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d len=%u data_len=%u network_offset=%d transport_offset_valid=%d transport_offset=%d tx_flags=%d gso_size=%d gso_segs=%d gso_type=%#x net_cookie=%llu",
+		  __get_str(name), __entry->queue_mapping, __entry->skbaddr,
+		  __entry->vlan_tagged, __entry->vlan_proto, __entry->vlan_tci,
+		  __entry->protocol, __entry->ip_summed, __entry->len,
+		  __entry->data_len,
+		  __entry->network_offset, __entry->transport_offset_valid,
+		  __entry->transport_offset, __entry->tx_flags,
+		  __entry->gso_size, __entry->gso_segs,
+		  __entry->gso_type, __entry->net_cookie)
+);
+
+TRACE_EVENT(net_dev_xmit,
+
+	TP_PROTO(struct sk_buff *skb,
+		 int rc,
+		 struct net_device *dev,
+		 unsigned int skb_len),
+
+	TP_ARGS(skb, rc, dev, skb_len),
+
+	TP_STRUCT__entry(
+		__field(	void *,		skbaddr		)
+		__field(	unsigned int,	len		)
+		__field(	int,		rc		)
+		__string(	name,		dev->name	)
+		__field(	u64,		net_cookie	)
+	),
+
+	TP_fast_assign(
+		__entry->skbaddr = skb;
+		__entry->len = skb_len;
+		__entry->rc = rc;
+		__entry->net_cookie = dev_net(dev)->net_cookie;
+		__assign_str(name);
+	),
+
+	TP_printk("dev=%s skbaddr=%p len=%u rc=%d net_cookie=%llu",
+		__get_str(name), __entry->skbaddr,
+		__entry->len, __entry->rc,
+		__entry->net_cookie)
+);
+
+TRACE_EVENT(net_dev_xmit_timeout,
+
+	TP_PROTO(struct net_device *dev,
+		 int queue_index),
+
+	TP_ARGS(dev, queue_index),
+
+	TP_STRUCT__entry(
+		__string(	name,		dev->name	)
+		__string(	driver,		netdev_drivername(dev))
+		__field(	int,		queue_index	)
+		__field(	u64,		net_cookie	)
+	),
+
+	TP_fast_assign(
+		__assign_str(name);
+		__assign_str(driver);
+		__entry->queue_index = queue_index;
+		__entry->net_cookie = dev_net(dev)->net_cookie;
+	),
+
+	TP_printk("dev=%s driver=%s queue=%d net_cookie=%llu",
+		__get_str(name), __get_str(driver),
+		__entry->queue_index, __entry->net_cookie)
+);
+
+DECLARE_EVENT_CLASS(net_dev_template,
+
+	TP_PROTO(struct sk_buff *skb),
+
+	TP_ARGS(skb),
+
+	TP_STRUCT__entry(
+		__field(	void *,		skbaddr		)
+		__field(	unsigned int,	len		)
+		__string(	name,		skb->dev->name	)
+		__field(	u64,		net_cookie	)
+	),
+
+	TP_fast_assign(
+		__entry->skbaddr = skb;
+		__entry->len = skb->len;
+		__entry->net_cookie = dev_net(skb->dev)->net_cookie;
+		__assign_str(name);
+	),
+
+	TP_printk("dev=%s skbaddr=%p len=%u net_cookie=%llu",
+		__get_str(name), __entry->skbaddr,
+		__entry->len,
+		__entry->net_cookie)
+)
+
+DEFINE_EVENT(net_dev_template, net_dev_queue,
+
+	TP_PROTO(struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_template, netif_receive_skb,
+
+	TP_PROTO(struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_template, netif_rx,
+
+	TP_PROTO(struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DECLARE_EVENT_CLASS(net_dev_rx_verbose_template,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb),
+
+	TP_STRUCT__entry(
+		__string(	name,			skb->dev->name	)
+		__field(	unsigned int,		napi_id		)
+		__field(	u16,			queue_mapping	)
+		__field(	const void *,		skbaddr		)
+		__field(	bool,			vlan_tagged	)
+		__field(	u16,			vlan_proto	)
+		__field(	u16,			vlan_tci	)
+		__field(	u16,			protocol	)
+		__field(	u8,			ip_summed	)
+		__field(	u32,			hash		)
+		__field(	bool,			l4_hash		)
+		__field(	unsigned int,		len		)
+		__field(	unsigned int,		data_len	)
+		__field(	unsigned int,		truesize	)
+		__field(	bool,			mac_header_valid)
+		__field(	int,			mac_header	)
+		__field(	unsigned char,		nr_frags	)
+		__field(	u16,			gso_size	)
+		__field(	u16,			gso_type	)
+		__field(	u64,			net_cookie	)
+	),
+
+	TP_fast_assign(
+		__assign_str(name);
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		__entry->napi_id = napi_id_valid(skb->napi_id) ?
+				   skb->napi_id : 0;
+#else
+		__entry->napi_id = 0;
+#endif
+		__entry->queue_mapping = skb->queue_mapping;
+		__entry->skbaddr = skb;
+		__entry->vlan_tagged = skb_vlan_tag_present(skb);
+		__entry->vlan_proto = ntohs(skb->vlan_proto);
+		__entry->vlan_tci = skb_vlan_tag_get(skb);
+		__entry->protocol = ntohs(skb->protocol);
+		__entry->ip_summed = skb->ip_summed;
+		__entry->hash = skb->hash;
+		__entry->l4_hash = skb->l4_hash;
+		__entry->len = skb->len;
+		__entry->data_len = skb->data_len;
+		__entry->truesize = skb->truesize;
+		__entry->mac_header_valid = skb_mac_header_was_set(skb);
+		__entry->mac_header = skb_mac_header(skb) - skb->data;
+		__entry->nr_frags = skb_shinfo(skb)->nr_frags;
+		__entry->gso_size = skb_shinfo(skb)->gso_size;
+		__entry->gso_type = skb_shinfo(skb)->gso_type;
+		__entry->net_cookie = dev_net(skb->dev)->net_cookie;
+	),
+
+	TP_printk("dev=%s napi_id=%#x queue_mapping=%u skbaddr=%p vlan_tagged=%d vlan_proto=0x%04x vlan_tci=0x%04x protocol=0x%04x ip_summed=%d hash=0x%08x l4_hash=%d len=%u data_len=%u truesize=%u mac_header_valid=%d mac_header=%d nr_frags=%d gso_size=%d gso_type=%#x net_cookie=%llu",
+		  __get_str(name), __entry->napi_id, __entry->queue_mapping,
+		  __entry->skbaddr, __entry->vlan_tagged, __entry->vlan_proto,
+		  __entry->vlan_tci, __entry->protocol, __entry->ip_summed,
+		  __entry->hash, __entry->l4_hash, __entry->len,
+		  __entry->data_len, __entry->truesize,
+		  __entry->mac_header_valid, __entry->mac_header,
+		  __entry->nr_frags, __entry->gso_size,
+		  __entry->gso_type, __entry->net_cookie)
+);
+
+DEFINE_EVENT(net_dev_rx_verbose_template, napi_gro_frags_entry,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_rx_verbose_template, napi_gro_receive_entry,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb_entry,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_rx_verbose_template, netif_receive_skb_list_entry,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DEFINE_EVENT(net_dev_rx_verbose_template, netif_rx_entry,
+
+	TP_PROTO(const struct sk_buff *skb),
+
+	TP_ARGS(skb)
+);
+
+DECLARE_EVENT_CLASS(net_dev_rx_exit_template,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret),
+
+	TP_STRUCT__entry(
+		__field(int,	ret)
+	),
+
+	TP_fast_assign(
+		__entry->ret = ret;
+	),
+
+	TP_printk("ret=%d", __entry->ret)
+);
+
+DEFINE_EVENT(net_dev_rx_exit_template, napi_gro_frags_exit,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret)
+);
+
+DEFINE_EVENT(net_dev_rx_exit_template, napi_gro_receive_exit,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret)
+);
+
+DEFINE_EVENT(net_dev_rx_exit_template, netif_receive_skb_exit,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret)
+);
+
+DEFINE_EVENT(net_dev_rx_exit_template, netif_rx_exit,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret)
+);
+
+DEFINE_EVENT(net_dev_rx_exit_template, netif_receive_skb_list_exit,
+
+	TP_PROTO(int ret),
+
+	TP_ARGS(ret)
+);
+
+#endif /* _TRACE_NET_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>