make per-adj counters configurable
Change-Id: Ifdd2b204ecf7d855f1269c11224b9c825311904d
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/adj/adj.c b/src/vnet/adj/adj.c
index 11f1680..4ed4999 100644
--- a/src/vnet/adj/adj.c
+++ b/src/vnet/adj/adj.c
@@ -35,6 +35,12 @@
*/
ip_adjacency_t *adj_pool;
+/**
+ * @brief Global Config for enabling per-adjacency counters.
+ * By default these are disabled.
+ */
+int adj_per_adj_counters;
+
always_inline void
adj_poison (ip_adjacency_t * adj)
{
@@ -375,11 +381,16 @@
{
adj_index_t ai = ADJ_INDEX_INVALID;
u32 sw_if_index = ~0;
+ int summary = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%d", &ai))
;
+ else if (unformat (input, "sum"))
+ summary = 1;
+ else if (unformat (input, "summary"))
+ summary = 1;
else if (unformat (input, "%U",
unformat_vnet_sw_interface, vnet_get_main(),
&sw_if_index))
@@ -388,39 +399,49 @@
break;
}
- if (ADJ_INDEX_INVALID != ai)
+ if (summary)
{
- if (pool_is_free_index(adj_pool, ai))
- {
- vlib_cli_output (vm, "adjacency %d invalid", ai);
- return 0;
- }
-
- vlib_cli_output (vm, "[@%d] %U",
- ai,
- format_ip_adjacency, ai,
- FORMAT_IP_ADJACENCY_DETAIL);
+ vlib_cli_output (vm, "Number of adjacenies: %d", pool_elts(adj_pool));
+ vlib_cli_output (vm, "Per-adjacency counters: %s",
+ (adj_are_counters_enabled() ?
+ "enabled":
+ "disabled"));
}
else
{
- /* *INDENT-OFF* */
- pool_foreach_index(ai, adj_pool,
- ({
- if (~0 != sw_if_index &&
- sw_if_index != adj_get_sw_if_index(ai))
- {
- }
- else
+ if (ADJ_INDEX_INVALID != ai)
+ {
+ if (pool_is_free_index(adj_pool, ai))
{
- vlib_cli_output (vm, "[@%d] %U",
- ai,
- format_ip_adjacency, ai,
- FORMAT_IP_ADJACENCY_NONE);
- }
- }));
- /* *INDENT-ON* */
- }
+ vlib_cli_output (vm, "adjacency %d invalid", ai);
+ return 0;
+ }
+ vlib_cli_output (vm, "[@%d] %U",
+ ai,
+ format_ip_adjacency, ai,
+ FORMAT_IP_ADJACENCY_DETAIL);
+ }
+ else
+ {
+ /* *INDENT-OFF* */
+ pool_foreach_index(ai, adj_pool,
+ ({
+ if (~0 != sw_if_index &&
+ sw_if_index != adj_get_sw_if_index(ai))
+ {
+ }
+ else
+ {
+ vlib_cli_output (vm, "[@%d] %U",
+ ai,
+ format_ip_adjacency, ai,
+ FORMAT_IP_ADJACENCY_NONE);
+ }
+ }));
+ /* *INDENT-ON* */
+ }
+ }
return 0;
}
@@ -438,6 +459,50 @@
?*/
VLIB_CLI_COMMAND (adj_show_command, static) = {
.path = "show adj",
- .short_help = "show adj [<adj_index>] [interface]",
+ .short_help = "show adj [<adj_index>] [interface] [summary]",
.function = adj_show,
};
+
+/**
+ * @brief CLI invoked function to enable/disable per-adj counters
+ */
+static clib_error_t *
+adj_cli_counters_set (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = NULL;
+ int enable = ~0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "enable"))
+ enable = 1;
+ else if (unformat (input, "disable"))
+ enable = 0;
+ else
+ break;
+ }
+
+ if (enable != ~0)
+ {
+ /* user requested something sensible */
+ adj_per_adj_counters = enable;
+ }
+ else
+ {
+ error = clib_error_return (0, "specify 'enable' or 'disable'");
+ }
+
+ return (error);
+}
+
+/*?
+ * Enabe/disble per-adjacency counters. This is optional because it comes with
+ * a non-negligible performance cost.
+ ?*/
+VLIB_CLI_COMMAND (adj_cli_counters_set_command, static) = {
+ .path = "adjacency counters",
+ .short_help = "adjacency counters [enable|disable]",
+ .function = adj_cli_counters_set,
+};