diff --git a/include/trace/events/net.h b/include/trace/events/net.h index 00aa72ce0e7c..1efd7d9b25fe 100644 --- a/include/trace/events/net.h +++ b/include/trace/events/net.h @@ -244,6 +244,65 @@ DEFINE_EVENT(net_dev_rx_verbose_template, netif_rx_ni_entry, 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_rx_ni_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 */ diff --git a/net/core/dev.c b/net/core/dev.c index abe50c424b29..04a6b7100aac 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4527,9 +4527,14 @@ static int netif_rx_internal(struct sk_buff *skb) int netif_rx(struct sk_buff *skb) { + int ret; + trace_netif_rx_entry(skb); - return netif_rx_internal(skb); + ret = netif_rx_internal(skb); + trace_netif_rx_exit(ret); + + return ret; } EXPORT_SYMBOL(netif_rx); @@ -4544,6 +4549,7 @@ int netif_rx_ni(struct sk_buff *skb) if (local_softirq_pending()) do_softirq(); preempt_enable(); + trace_netif_rx_ni_exit(err); return err; } @@ -5229,9 +5235,14 @@ static void netif_receive_skb_list_internal(struct list_head *head) */ int netif_receive_skb(struct sk_buff *skb) { + int ret; + trace_netif_receive_skb_entry(skb); - return netif_receive_skb_internal(skb); + ret = netif_receive_skb_internal(skb); + trace_netif_receive_skb_exit(ret); + + return ret; } EXPORT_SYMBOL(netif_receive_skb); @@ -5251,9 +5262,12 @@ void netif_receive_skb_list(struct list_head *head) if (list_empty(head)) return; - list_for_each_entry(skb, head, list) - trace_netif_receive_skb_list_entry(skb); + if (trace_netif_receive_skb_list_entry_enabled()) { + list_for_each_entry(skb, head, list) + trace_netif_receive_skb_list_entry(skb); + } netif_receive_skb_list_internal(head); + trace_netif_receive_skb_list_exit(0); } EXPORT_SYMBOL(netif_receive_skb_list); @@ -5645,12 +5659,17 @@ static gro_result_t napi_skb_finish(gro_result_t ret, struct sk_buff *skb) gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) { + gro_result_t ret; + skb_mark_napi_id(skb, napi); trace_napi_gro_receive_entry(skb); skb_gro_reset_offset(skb); - return napi_skb_finish(dev_gro_receive(napi, skb), skb); + ret = napi_skb_finish(dev_gro_receive(napi, skb), skb); + trace_napi_gro_receive_exit(ret); + + return ret; } EXPORT_SYMBOL(napi_gro_receive); @@ -5768,6 +5787,7 @@ static struct sk_buff *napi_frags_skb(struct napi_struct *napi) gro_result_t napi_gro_frags(struct napi_struct *napi) { + gro_result_t ret; struct sk_buff *skb = napi_frags_skb(napi); if (!skb) @@ -5775,7 +5795,10 @@ gro_result_t napi_gro_frags(struct napi_struct *napi) trace_napi_gro_frags_entry(skb); - return napi_frags_finish(napi, skb, dev_gro_receive(napi, skb)); + ret = napi_frags_finish(napi, skb, dev_gro_receive(napi, skb)); + trace_napi_gro_frags_exit(ret); + + return ret; } EXPORT_SYMBOL(napi_gro_frags);