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authorGeliang Tang <geliangtang@gmail.com>2021-04-17 01:38:07 +0300
committerDavid S. Miller <davem@davemloft.net>2021-04-17 03:10:40 +0300
commitd96a838a7ce2772ed181f89becd79b72d267f93a (patch)
tree209d5665482d494efe1af6f934576edbba417b2f /include
parented66bfb4ce34a94174bb755eeaca85d1661d36ad (diff)
downloadlinux-d96a838a7ce2772ed181f89becd79b72d267f93a.tar.xz
mptcp: add tracepoint in subflow_check_data_avail
This patch added a tracepoint in subflow_check_data_avail() to show the mapping status. Suggested-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/trace/events/mptcp.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/trace/events/mptcp.h b/include/trace/events/mptcp.h
index b90bfe45d995..775a46d0b0f0 100644
--- a/include/trace/events/mptcp.h
+++ b/include/trace/events/mptcp.h
@@ -7,6 +7,14 @@
#include <linux/tracepoint.h>
+#define show_mapping_status(status) \
+ __print_symbolic(status, \
+ { 0, "MAPPING_OK" }, \
+ { 1, "MAPPING_INVALID" }, \
+ { 2, "MAPPING_EMPTY" }, \
+ { 3, "MAPPING_DATA_FIN" }, \
+ { 4, "MAPPING_DUMMY" })
+
TRACE_EVENT(mptcp_subflow_get_send,
TP_PROTO(struct mptcp_subflow_context *subflow),
@@ -138,6 +146,27 @@ TRACE_EVENT(ack_update_msk,
__entry->msk_wnd_end)
);
+TRACE_EVENT(subflow_check_data_avail,
+
+ TP_PROTO(__u8 status, struct sk_buff *skb),
+
+ TP_ARGS(status, skb),
+
+ TP_STRUCT__entry(
+ __field(u8, status)
+ __field(const void *, skb)
+ ),
+
+ TP_fast_assign(
+ __entry->status = status;
+ __entry->skb = skb;
+ ),
+
+ TP_printk("mapping_status=%s, skb=%p",
+ show_mapping_status(__entry->status),
+ __entry->skb)
+);
+
#endif /* _TRACE_MPTCP_H */
/* This part must be outside protection */