diff options
| author |   Vijayabhaskar Katamreddy <vkatamre@cisco.com> | 2022-05-18 14:31:03 +0000 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2022-05-19 07:17:42 +0000 |
| commit | 14a7442e73721b3484fdd870464bd582a693626d (patch) | |
| tree | 59243fc2dd0ada8163c5fe27d8666674f8ac770c /src/vnet/ip/reass/ip4_full_reass.c | |
| parent | 01e593e8e598efc447c5809ea477e34a88a86648 (diff) | |
ip: reassembly - increasing the nbuckets for reass
Type: fix
Adding stats from debugging point of view
Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
Change-Id: I3118d3fd5d630fad80a42ab960e30459789123cf
Diffstat (limited to 'src/vnet/ip/reass/ip4_full_reass.c')
| -rw-r--r-- | src/vnet/ip/reass/ip4_full_reass.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/vnet/ip/reass/ip4_full_reass.c b/src/vnet/ip/reass/ip4_full_reass.c index 2493fae434a..b5ea0276c88 100644 --- a/src/vnet/ip/reass/ip4_full_reass.c +++ b/src/vnet/ip/reass/ip4_full_reass.c @@ -453,6 +453,11 @@ ip4_full_reass_drop_all (vlib_main_t *vm, vlib_node_runtime_t *node, next_index = reass->error_next_index; u32 bi = ~0; + /* record number of packets sent to custom app */ + vlib_node_increment_counter (vm, node->node_index, + IP4_ERROR_REASS_TO_CUSTOM_APP, + vec_len (to_free)); + while (vec_len (to_free) > 0) { vlib_get_next_frame (vm, node, next_index, *to_next, @@ -579,6 +584,8 @@ again: if (now > reass->last_heard + rm->timeout) { + vlib_node_increment_counter (vm, node->node_index, + IP4_ERROR_REASS_TIMEOUT, 1); ip4_full_reass_drop_all (vm, node, reass, n_left_to_next, to_next); ip4_full_reass_free (rm, rt, reass); reass = NULL; @@ -825,6 +832,15 @@ ip4_full_reass_finalize (vlib_main_t * vm, vlib_node_runtime_t * node, } vnet_buffer (first_b)->ip.reass.estimated_mtu = reass->min_fragment_length; + /* Keep track of number of successfully reassembled packets and number of + * fragments reassembled */ + vlib_node_increment_counter (vm, node->node_index, IP4_ERROR_REASS_SUCCESS, + 1); + + vlib_node_increment_counter (vm, node->node_index, + IP4_ERROR_REASS_FRAGMENTS_REASSEMBLED, + reass->fragments_n); + *error0 = IP4_ERROR_NONE; ip4_full_reass_free (rm, rt, reass); reass = NULL; @@ -1214,6 +1230,10 @@ ip4_full_reass_inline (vlib_main_t *vm, vlib_node_runtime_t *node, clib_net_to_host_u16 (ip0->length) - ip4_header_bytes (ip0); const u32 fragment_last = fragment_first + fragment_length - 1; + /* Keep track of received fragments */ + vlib_node_increment_counter (vm, node->node_index, + IP4_ERROR_REASS_FRAGMENTS_RCVD, 1); + if (fragment_first > fragment_last || fragment_first + fragment_length > UINT16_MAX - 20 || (fragment_length < 8 && // 8 is minimum frag length per RFC 791 @@ -1335,6 +1355,14 @@ ip4_full_reass_inline (vlib_main_t *vm, vlib_node_runtime_t *node, vnet_feature_next (&next0, b0); } + /* Increment the counter to-custom-app also as this fragment is + * also going to application */ + if (CUSTOM == type) + { + vlib_node_increment_counter ( + vm, node->node_index, IP4_ERROR_REASS_TO_CUSTOM_APP, 1); + } + vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); @@ -1680,6 +1708,10 @@ ip4_full_reass_walk_expired (vlib_main_t *vm, vlib_node_runtime_t *node, } } + if (vec_len (pool_indexes_to_free)) + vlib_node_increment_counter (vm, node->node_index, + IP4_ERROR_REASS_TIMEOUT, + vec_len (pool_indexes_to_free)); int *i; vec_foreach (i, pool_indexes_to_free) { |