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Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
-rw-r--r--src/vnet/ip/ip4_forward.c24
1 files changed, 3 insertions, 21 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index 614b6e2cb4a..d5cf011b677 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -1719,21 +1719,11 @@ ip4_arp_inline (vlib_main_t * vm,
uword n_left_from, n_left_to_next_drop, next_index;
u32 thread_index = vm->thread_index;
u32 seed;
- f64 time_now;
if (node->flags & VLIB_NODE_FLAG_TRACE)
ip4_forward_next_trace (vm, node, frame, VLIB_TX);
- time_now = vlib_time_now (vm);
- if (time_now - im->arp_throttle_last_seed_change_time[thread_index] > 1e-3)
- {
- (void) random_u32 (&im->arp_throttle_seeds[thread_index]);
- memset (im->arp_throttle_bitmaps[thread_index], 0,
- ARP_THROTTLE_BITS / BITS (u8));
-
- im->arp_throttle_last_seed_change_time[thread_index] = time_now;
- }
- seed = im->arp_throttle_seeds[thread_index];
+ seed = throttle_seed (&im->arp_throttle, thread_index, vlib_time_now (vm));
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -1748,8 +1738,7 @@ ip4_arp_inline (vlib_main_t * vm,
while (n_left_from > 0 && n_left_to_next_drop > 0)
{
- u32 pi0, adj_index0, r0, w0, sw_if_index0, drop0;
- uword m0;
+ u32 pi0, adj_index0, r0, sw_if_index0, drop0;
ip_adjacency_t *adj0;
vlib_buffer_t *p0;
ip4_header_t *ip0;
@@ -1778,14 +1767,7 @@ ip4_arp_inline (vlib_main_t * vm,
r0 = adj0->sub_type.nbr.next_hop.ip4.data_u32;
}
- r0 ^= seed;
- /* Select bit number */
- r0 &= ARP_THROTTLE_BITS - 1;
- w0 = r0 / BITS (uword);
- m0 = (uword) 1 << (r0 % BITS (uword));
-
- drop0 = (im->arp_throttle_bitmaps[thread_index][w0] & m0) != 0;
- im->arp_throttle_bitmaps[thread_index][w0] |= m0;
+ drop0 = throttle_check (&im->arp_throttle, thread_index, r0, seed);
from += 1;
n_left_from -= 1;