summaryrefslogtreecommitdiffstats
path: root/src/vnet/ip/ip4_forward.c
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2017-02-21 05:33:14 -0800
committerDamjan Marion <dmarion.lists@gmail.com>2017-03-07 12:11:39 +0000
commit9c6a613feb2d718c5756cecbcd3ab84156241db2 (patch)
tree47ccf5daaa221c6fafdeda224cae2f2748d082c4 /src/vnet/ip/ip4_forward.c
parent153b871019d0acbe815640bd7c5000d302d91720 (diff)
make per-adj counters configurable
Change-Id: Ifdd2b204ecf7d855f1269c11224b9c825311904d Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
-rw-r--r--src/vnet/ip/ip4_forward.c52
1 files changed, 35 insertions, 17 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index b3721e63d97..31b687d7347 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -2326,7 +2326,8 @@ typedef enum
always_inline uword
ip4_rewrite_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame, int is_midchain, int is_mcast)
+ vlib_frame_t * frame,
+ int do_counters, int is_midchain, int is_mcast)
{
ip_lookup_main_t *lm = &ip4_main.lookup_main;
u32 *from = vlib_frame_vector_args (frame);
@@ -2487,10 +2488,13 @@ ip4_rewrite_inline (vlib_main_t * vm,
/*
* pre-fetch the per-adjacency counters
*/
- vlib_prefetch_combined_counter (&adjacency_counters,
- cpu_index, adj_index0);
- vlib_prefetch_combined_counter (&adjacency_counters,
- cpu_index, adj_index1);
+ if (do_counters)
+ {
+ vlib_prefetch_combined_counter (&adjacency_counters,
+ cpu_index, adj_index0);
+ vlib_prefetch_combined_counter (&adjacency_counters,
+ cpu_index, adj_index1);
+ }
/* Don't adjust the buffer for ttl issue; icmp-error node wants
* to see the IP headerr */
@@ -2525,15 +2529,20 @@ ip4_rewrite_inline (vlib_main_t * vm,
/*
* Bump the per-adjacency counters
*/
- vlib_increment_combined_counter
- (&adjacency_counters,
- cpu_index,
- adj_index0, 1, vlib_buffer_length_in_chain (vm, p0) + rw_len0);
-
- vlib_increment_combined_counter
- (&adjacency_counters,
- cpu_index,
- adj_index1, 1, vlib_buffer_length_in_chain (vm, p1) + rw_len1);
+ if (do_counters)
+ {
+ vlib_increment_combined_counter
+ (&adjacency_counters,
+ cpu_index,
+ adj_index0, 1,
+ vlib_buffer_length_in_chain (vm, p0) + rw_len0);
+
+ vlib_increment_combined_counter
+ (&adjacency_counters,
+ cpu_index,
+ adj_index1, 1,
+ vlib_buffer_length_in_chain (vm, p1) + rw_len1);
+ }
if (is_midchain)
{
@@ -2722,21 +2731,30 @@ static uword
ip4_rewrite (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip4_rewrite_inline (vm, node, frame, 0, 0);
+ if (adj_are_counters_enabled ())
+ return ip4_rewrite_inline (vm, node, frame, 1, 0, 0);
+ else
+ return ip4_rewrite_inline (vm, node, frame, 0, 0, 0);
}
static uword
ip4_midchain (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip4_rewrite_inline (vm, node, frame, 1, 0);
+ if (adj_are_counters_enabled ())
+ return ip4_rewrite_inline (vm, node, frame, 1, 1, 0);
+ else
+ return ip4_rewrite_inline (vm, node, frame, 0, 1, 0);
}
static uword
ip4_rewrite_mcast (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- return ip4_rewrite_inline (vm, node, frame, 0, 1);
+ if (adj_are_counters_enabled ())
+ return ip4_rewrite_inline (vm, node, frame, 1, 0, 1);
+ else
+ return ip4_rewrite_inline (vm, node, frame, 0, 0, 1);
}
/* *INDENT-OFF* */