This is introduced for admins to check what is happening on XDP_TX when
bulk XDP_TX is in use, which will be first introduced in veth in next
commit.
v3:
- Add act field to be in line with other XDP tracepoints.
Signed-off-by: Toshiaki Makita <toshiaki.makita1@xxxxxxxxx>
---
include/trace/events/xdp.h | 29 +++++++++++++++++++++++++++++
kernel/bpf/core.c | 1 +
2 files changed, 30 insertions(+)
diff --git a/include/trace/events/xdp.h b/include/trace/events/xdp.h
index e95cb86..01389b9 100644
--- a/include/trace/events/xdp.h
+++ b/include/trace/events/xdp.h
@@ -50,6 +50,35 @@
__entry->ifindex)
);
+TRACE_EVENT(xdp_bulk_tx,
+
+ TP_PROTO(const struct net_device *dev,
+ int sent, int drops, int err),
+
+ TP_ARGS(dev, sent, drops, err),
+
+ TP_STRUCT__entry(
+ __field(int, ifindex)
+ __field(u32, act)
+ __field(int, drops)
+ __field(int, sent)
+ __field(int, err)
+ ),
+
+ TP_fast_assign(
+ __entry->ifindex = dev->ifindex;
+ __entry->act = XDP_TX;
+ __entry->drops = drops;
+ __entry->sent = sent;
+ __entry->err = err;
+ ),
+
+ TP_printk("ifindex=%d action=%s sent=%d drops=%d err=%d",
+ __entry->ifindex,
+ __print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
+ __entry->sent, __entry->drops, __entry->err)
+);
+
DECLARE_EVENT_CLASS(xdp_redirect_template,
TP_PROTO(const struct net_device *dev,
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 33fb292..3a3f4af 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -2106,3 +2106,4 @@ int __weak skb_copy_bits(const struct sk_buff *skb, int offset, void *to,
#include <linux/bpf_trace.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(xdp_exception);
+EXPORT_TRACEPOINT_SYMBOL_GPL(xdp_bulk_tx);
--
1.8.3.1
|