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-rw-r--r--src/vnet/pg/input.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/src/vnet/pg/input.c b/src/vnet/pg/input.c
index c8f3d9f01d8..d5cf929331a 100644
--- a/src/vnet/pg/input.c
+++ b/src/vnet/pg/input.c
@@ -1454,15 +1454,16 @@ format_pg_input_trace (u8 * s, va_list * va)
return s;
}
-static void
+static int
pg_input_trace (pg_main_t * pg,
vlib_node_runtime_t * node, u32 stream_index, u32 next_index,
- u32 * buffers, u32 n_buffers)
+ u32 * buffers, const u32 n_buffers, const u32 n_trace)
{
vlib_main_t *vm = vlib_get_main ();
u32 *b, n_left;
+ u32 n_trace0 = 0, n_trace1 = 0;
- n_left = n_buffers;
+ n_left = clib_min (n_buffers, n_trace);
b = buffers;
while (n_left >= 2)
@@ -1479,8 +1480,10 @@ pg_input_trace (pg_main_t * pg,
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
- vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1);
+ n_trace0 +=
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
+ n_trace1 +=
+ vlib_trace_buffer (vm, node, next_index, b1, /* follow_chain */ 1);
t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
t1 = vlib_add_trace (vm, node, b1, sizeof (t1[0]));
@@ -1517,7 +1520,8 @@ pg_input_trace (pg_main_t * pg,
b0 = vlib_get_buffer (vm, bi0);
- vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
+ n_trace0 +=
+ vlib_trace_buffer (vm, node, next_index, b0, /* follow_chain */ 1);
t0 = vlib_add_trace (vm, node, b0, sizeof (t0[0]));
t0->stream_index = stream_index;
@@ -1528,6 +1532,8 @@ pg_input_trace (pg_main_t * pg,
clib_memcpy_fast (t0->buffer.pre_data, b0->data,
sizeof (t0->buffer.pre_data));
}
+
+ return n_trace - n_trace0 - n_trace1;
}
static_always_inline void
@@ -1714,11 +1720,12 @@ pg_generate_packets (vlib_node_runtime_t * node,
}
n_trace = vlib_get_trace_count (vm, node);
- if (n_trace > 0)
+ if (PREDICT_FALSE (n_trace > 0))
{
- u32 n = clib_min (n_trace, n_this_frame);
- pg_input_trace (pg, node, s - pg->streams, next_index, to_next, n);
- vlib_set_trace_count (vm, node, n_trace - n);
+ n_trace =
+ pg_input_trace (pg, node, s - pg->streams, next_index, to_next,
+ n_this_frame, n_trace);
+ vlib_set_trace_count (vm, node, n_trace);
}
n_packets_to_generate -= n_this_frame;
n_packets_generated += n_this_frame;