diff options
Diffstat (limited to 'src/vlib')
| -rw-r--r-- | src/vlib/handoff_trace.c | 1 | ||||
| -rw-r--r-- | src/vlib/node.h | 1 | ||||
| -rw-r--r-- | src/vlib/trace.c | 12 |
3 files changed, 14 insertions, 0 deletions
diff --git a/src/vlib/handoff_trace.c b/src/vlib/handoff_trace.c index 7a6743885da..fcb514bd837 100644 --- a/src/vlib/handoff_trace.c +++ b/src/vlib/handoff_trace.c @@ -79,6 +79,7 @@ typedef enum VLIB_REGISTER_NODE (handoff_trace_node, static) = { .name = "handoff_trace", + .flags = VLIB_NODE_FLAG_TRACE_SUPPORTED, .function = handoff_trace_node_fn, .vector_size = sizeof (u32), .format_trace = format_handoff_trace, diff --git a/src/vlib/node.h b/src/vlib/node.h index 2db31c68d7f..9f324f79fa4 100644 --- a/src/vlib/node.h +++ b/src/vlib/node.h @@ -303,6 +303,7 @@ typedef struct vlib_node_t #define VLIB_NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE (1 << 6) #define VLIB_NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE (1 << 7) +#define VLIB_NODE_FLAG_TRACE_SUPPORTED (1 << 8) /* State for input nodes. */ u8 state; diff --git a/src/vlib/trace.c b/src/vlib/trace.c index 70621135c68..530598d349d 100644 --- a/src/vlib/trace.c +++ b/src/vlib/trace.c @@ -357,6 +357,7 @@ cli_add_trace_buffer (vlib_main_t * vm, { unformat_input_t _line_input, *line_input = &_line_input; vlib_trace_main_t *tm; + vlib_node_t *node; vlib_trace_node_t *tn; u32 node_index, add; u8 verbose = 0; @@ -383,6 +384,17 @@ cli_add_trace_buffer (vlib_main_t * vm, } } + node = vlib_get_node (vm, node_index); + + if ((node->flags & VLIB_NODE_FLAG_TRACE_SUPPORTED) == 0) + { + error = clib_error_create ("node '%U' doesn't support per-node " + "tracing. There may be another way to " + "initiate trace on this node.", + format_vlib_node_name, vm, node_index); + goto done; + } + /* *INDENT-OFF* */ foreach_vlib_main (( { |