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authorBenoît Ganne <bganne@cisco.com>2021-03-04 14:31:03 +0100
committerDamjan Marion <dmarion@me.com>2021-05-01 11:42:37 +0000
commitf89bbbe300dad7bc479db535e7822199f98aca30 (patch)
tree1163eeac010375a962fcda8c2e0c7a7046161bf1 /extras
parentc8983241b9d93d2c3b60b0705efbc3cdee54c534 (diff)
vlib: refactor trajectory trace debug feature
trajectory trace has been broken for a while because we used to save the buffer trajectory in a vector pointed to in opaque2. This does not work well when opaque2 is copied (eg. because of a clone) as 2 buffers end up sharing the same vector. This dedicates a full cacheline in the buffer metadata instead when trajectory is compiled in. No dynamic allocation, no sharing, no tears. Type: refactor Change-Id: I6a028ca1b48d38f393a36979e5e452c2dd48ad3f Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'extras')
-rw-r--r--extras/deprecated/ixge/ixge.c15
-rw-r--r--extras/deprecated/netmap/node.c1
2 files changed, 0 insertions, 16 deletions
diff --git a/extras/deprecated/ixge/ixge.c b/extras/deprecated/ixge/ixge.c
index f61db131f53..bb91a368488 100644
--- a/extras/deprecated/ixge/ixge.c
+++ b/extras/deprecated/ixge/ixge.c
@@ -1468,14 +1468,6 @@ ixge_rx_queue_no_wrap (ixge_main_t * xm,
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
- /*
- * Turn this on if you run into
- * "bad monkey" contexts, and you want to know exactly
- * which nodes they've visited... See main.c...
- */
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b1);
-
CLIB_PREFETCH (b0->data, CLIB_CACHE_LINE_BYTES, LOAD);
CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, LOAD);
@@ -1680,13 +1672,6 @@ ixge_rx_queue_no_wrap (ixge_main_t * xm,
b0 = vlib_get_buffer (vm, bi0);
- /*
- * Turn this on if you run into
- * "bad monkey" contexts, and you want to know exactly
- * which nodes they've visited...
- */
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b0);
-
is_eop0 = (s20 & IXGE_RX_DESCRIPTOR_STATUS2_IS_END_OF_PACKET) != 0;
ixge_rx_next_and_error_from_status_x1
(xd, s00, s20, &next0, &error0, &flags0);
diff --git a/extras/deprecated/netmap/node.c b/extras/deprecated/netmap/node.c
index bc55ecc8eb1..b0a68824b9c 100644
--- a/extras/deprecated/netmap/node.c
+++ b/extras/deprecated/netmap/node.c
@@ -198,7 +198,6 @@ netmap_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
}
/* trace */
- VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0);
if (PREDICT_FALSE (n_trace > 0))
{
if (PREDICT_TRUE (first_b0 != 0))