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-rw-r--r--src/vnet/vxlan/decap.c702
-rw-r--r--src/vnet/vxlan/encap.c59
2 files changed, 242 insertions, 519 deletions
diff --git a/src/vnet/vxlan/decap.c b/src/vnet/vxlan/decap.c
index a26df9df15f..45745f7b735 100644
--- a/src/vnet/vxlan/decap.c
+++ b/src/vnet/vxlan/decap.c
@@ -42,7 +42,7 @@ static u8 * format_vxlan_rx_trace (u8 * s, va_list * args)
}
else
{
- s = format (s, "VXLAN decap error - tunnel for vni %d does not exist",
+ s = format (s, "VXLAN decap error - tunnel for vni %d does not exist",
t->vni);
}
return s;
@@ -62,6 +62,102 @@ validate_vxlan_fib (vlib_buffer_t *b, vxlan_tunnel_t *t, u32 is_ip4)
return (fib_index == t->encap_fib_index);
}
+typedef struct
+{
+ vxlan4_tunnel_key_t key4;
+ u32 tunnel_index;
+}last_tunnel_cache4;
+
+typedef struct
+{
+ vxlan6_tunnel_key_t key6;
+ u32 tunnel_index;
+}last_tunnel_cache6;
+
+always_inline vxlan_tunnel_t *
+vxlan4_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache4 * cache,
+ ip4_header_t * ip4_0, vxlan_header_t * vxlan0,
+ vxlan_tunnel_t ** stats_t0)
+{
+ /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
+ vxlan4_tunnel_key_t key4_0 = {
+ .src = ip4_0->src_address.as_u32,
+ .vni = vxlan0->vni_reserved,
+ };
+
+ if (PREDICT_FALSE (key4_0.as_u64 != cache->key4.as_u64))
+ {
+ uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
+ if (PREDICT_FALSE (p == 0))
+ return 0;
+
+ cache->key4 = key4_0;
+ cache->tunnel_index = p[0];
+ }
+ vxlan_tunnel_t * t0 = pool_elt_at_index (vxm->tunnels, cache->tunnel_index);
+
+ /* Validate VXLAN tunnel SIP against packet DIP */
+ if (PREDICT_TRUE (ip4_0->dst_address.as_u32 == t0->src.ip4.as_u32))
+ *stats_t0 = t0;
+ else
+ {
+ /* try multicast */
+ if (PREDICT_TRUE (!ip4_address_is_multicast (&ip4_0->dst_address)))
+ return 0;
+
+ key4_0.src = ip4_0->dst_address.as_u32;
+ /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */
+ uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
+ if (PREDICT_FALSE (p == NULL))
+ return 0;
+ *stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
+ }
+
+ return t0;
+}
+
+always_inline vxlan_tunnel_t *
+vxlan6_find_tunnel (vxlan_main_t * vxm, last_tunnel_cache6 * cache,
+ ip6_header_t * ip6_0, vxlan_header_t * vxlan0,
+ vxlan_tunnel_t ** stats_t0)
+{
+ /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
+ vxlan6_tunnel_key_t key6_0 = {
+ .src = ip6_0->src_address,
+ .vni = vxlan0->vni_reserved,
+ };
+
+ if (PREDICT_FALSE (memcmp(&key6_0, &cache->key6, sizeof key6_0) != 0))
+ {
+ uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
+ if (PREDICT_FALSE (p == NULL))
+ return 0;
+
+ cache->key6 = key6_0;
+ cache->tunnel_index = p[0];
+ }
+ vxlan_tunnel_t * t0 = pool_elt_at_index (vxm->tunnels, cache->tunnel_index);
+
+ /* Validate VXLAN tunnel SIP against packet DIP */
+ if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address, &t0->src.ip6)))
+ *stats_t0 = t0;
+ else
+ {
+ /* try multicast */
+ if (PREDICT_TRUE (!ip6_address_is_multicast (&ip6_0->dst_address)))
+ return 0;
+
+ key6_0.src = ip6_0->dst_address;
+ /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */
+ uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
+ if (PREDICT_FALSE (p == NULL))
+ return 0;
+ *stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
+ }
+
+ return t0;
+}
+
always_inline uword
vxlan_input (vlib_main_t * vm,
vlib_node_runtime_t * node,
@@ -71,20 +167,19 @@ vxlan_input (vlib_main_t * vm,
vxlan_main_t * vxm = &vxlan_main;
vnet_main_t * vnm = vxm->vnet_main;
vnet_interface_main_t * im = &vnm->interface_main;
- u32 last_tunnel_index = ~0;
- vxlan4_tunnel_key_t last_key4;
- vxlan6_tunnel_key_t last_key6;
+ vlib_combined_counter_main_t * rx_counter = im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX;
+ vlib_combined_counter_main_t * drop_counter = im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP;
+ last_tunnel_cache4 last4 = { .tunnel_index = ~0 };
+ last_tunnel_cache6 last6 = { .tunnel_index = ~0 };
u32 pkts_decapsulated = 0;
u32 thread_index = vlib_get_thread_index();
if (is_ip4)
- last_key4.as_u64 = ~0;
+ last4.key4.as_u64 = ~0;
else
- memset (&last_key6, 0xff, sizeof (last_key6));
+ memset (&last6.key6, 0xff, sizeof last6.key6);
u32 next_index = node->cached_next_index;
- u32 stats_sw_if_index = node->runtime_data[0];
- u32 stats_n_packets = 0, stats_n_bytes = 0;
u32 * from = vlib_frame_vector_args (from_frame);
u32 n_left_from = from_frame->n_vectors;
@@ -92,16 +187,10 @@ vxlan_input (vlib_main_t * vm,
while (n_left_from > 0)
{
u32 * to_next, n_left_to_next;
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from >= 4 && n_left_to_next >= 2)
{
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- vxlan_tunnel_t * t0, * t1, * stats_t0, * stats_t1;
-
/* Prefetch next iteration. */
{
vlib_buffer_t * p2, * p3;
@@ -116,15 +205,14 @@ vxlan_input (vlib_main_t * vm,
CLIB_PREFETCH (p3->data, 2*CLIB_CACHE_LINE_BYTES, LOAD);
}
- bi0 = from[0];
- bi1 = from[1];
- to_next[0] = bi0;
- to_next[1] = bi1;
+ u32 bi0 = to_next[0] = from[0];
+ u32 bi1 = to_next[1] = from[1];
from += 2;
to_next += 2;
n_left_to_next -= 2;
n_left_from -= 2;
+ vlib_buffer_t * b0, * b1;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
@@ -144,308 +232,105 @@ vxlan_input (vlib_main_t * vm,
ip6_1 = cur1 - sizeof(udp_header_t) - sizeof(ip6_header_t);
}
- /* pop (ip, udp, vxlan) */
+ /* pop vxlan */
vlib_buffer_advance (b0, sizeof *vxlan0);
vlib_buffer_advance (b1, sizeof *vxlan1);
- u32 tunnel_index0 = ~0, tunnel_index1 = ~0;
- u32 error0 = 0, error1 = 0;
+ vxlan_tunnel_t * t0, * stats_t0;
+ vxlan_tunnel_t * t1, * stats_t1;
+ if (is_ip4)
+ {
+ t0 = vxlan4_find_tunnel (vxm, &last4, ip4_0, vxlan0, &stats_t0);
+ t1 = vxlan4_find_tunnel (vxm, &last4, ip4_1, vxlan1, &stats_t1);
+ }
+ else
+ {
+ t0 = vxlan6_find_tunnel (vxm, &last6, ip6_0, vxlan0, &stats_t0);
+ t1 = vxlan6_find_tunnel (vxm, &last6, ip6_1, vxlan1, &stats_t1);
+ }
- if (PREDICT_FALSE (vxlan0->flags != VXLAN_FLAGS_I))
- {
- error0 = VXLAN_ERROR_BAD_FLAGS;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
+ u32 len0 = vlib_buffer_length_in_chain (vm, b0);
+ u32 len1 = vlib_buffer_length_in_chain (vm, b1);
+ u32 next0, next1;
+ u8 error0 = 0, error1 = 0;
+ /* Validate VXLAN tunnel encap-fib index agaist packet */
+ if (PREDICT_FALSE (t0 == 0 || validate_vxlan_fib (b0, t0, is_ip4) == 0 ||
+ vxlan0->flags != VXLAN_FLAGS_I))
+ {
+ next0 = VXLAN_INPUT_NEXT_DROP;
+
+ if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I)
+ {
+ error0 = VXLAN_ERROR_BAD_FLAGS;
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, stats_t0->sw_if_index, 1, len0);
+ }
+ else
+ error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
+ b0->error = node->errors[error0];
+ }
+ else
+ {
+ next0 = t0->decap_next_index;
- if (is_ip4) {
- /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
- vxlan4_tunnel_key_t key4_0 = {
- .src = ip4_0->src_address.as_u32,
- .vni = vxlan0->vni_reserved,
- };
-
- if (PREDICT_FALSE (key4_0.as_u64 != last_key4.as_u64))
- {
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
- if (PREDICT_FALSE (p == NULL))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
- last_key4 = key4_0;
- last_tunnel_index = p[0];
- }
- tunnel_index0 = last_tunnel_index;
- stats_t0 = t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);
-
- /* Validate VXLAN tunnel encap-fib index agaist packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b0, t0, is_ip4) == 0))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip4_0->dst_address.as_u32 == t0->src.ip4.as_u32))
- goto next0; /* valid packet */
- if (PREDICT_FALSE (ip4_address_is_multicast (&ip4_0->dst_address)))
- {
- key4_0.src = ip4_0->dst_address.as_u32;
- /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next0; /* valid packet */
- }
- }
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
-
- } else /* !is_ip4 */ {
- /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
- vxlan6_tunnel_key_t key6_0 = {
- .src = ip6_0->src_address,
- .vni = vxlan0->vni_reserved,
- };
-
- if (PREDICT_FALSE (memcmp(&key6_0, &last_key6, sizeof(last_key6)) != 0))
- {
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
- if (PREDICT_FALSE (p == NULL))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
- clib_memcpy (&last_key6, &key6_0, sizeof(key6_0));
- last_tunnel_index = p[0];
- }
- tunnel_index0 = last_tunnel_index;
- stats_t0 = t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);
-
- /* Validate VXLAN tunnel encap-fib index agaist packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b0, t0, is_ip4) == 0))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address,
- &t0->src.ip6)))
- goto next0; /* valid packet */
- if (PREDICT_FALSE (ip6_address_is_multicast (&ip6_0->dst_address)))
- {
- key6_0.src = ip6_0->dst_address;
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next0; /* valid packet */
- }
- }
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace0;
- }
+ /* Required to make the l2 tag push / pop code work on l2 subifs */
+ if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT))
+ vnet_update_l2_len (b0);
- next0:
- next0 = t0->decap_next_index;
- u32 len0 = vlib_buffer_length_in_chain (vm, b0);
+ /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
+ vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0);
+ pkts_decapsulated++;
+ }
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT))
- vnet_update_l2_len (b0);
+ /* Validate VXLAN tunnel encap-fib index agaist packet */
+ if (PREDICT_FALSE (t1 == 0 || validate_vxlan_fib (b1, t1, is_ip4) == 0 ||
+ vxlan1->flags != VXLAN_FLAGS_I))
+ {
+ next1 = VXLAN_INPUT_NEXT_DROP;
+
+ if (t1 != 0 && vxlan1->flags != VXLAN_FLAGS_I)
+ {
+ error1 = VXLAN_ERROR_BAD_FLAGS;
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, stats_t1->sw_if_index, 1, len1);
+ }
+ else
+ error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
+ b1->error = node->errors[error1];
+ }
+ else
+ {
+ next1 = t1->decap_next_index;
- /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
- vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
+ /* Required to make the l2 tag push / pop code work on l2 subifs */
+ if (PREDICT_TRUE(next1 == VXLAN_INPUT_NEXT_L2_INPUT))
+ vnet_update_l2_len (b1);
- /* Batch stats increment on the same vxlan tunnel so counter
- is not incremented per packet */
- u32 sw_if_index0 = stats_t0->sw_if_index;
- if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
- {
- if (stats_n_packets)
- {
- vlib_increment_combined_counter
- (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- thread_index, stats_sw_if_index,
- stats_n_packets, stats_n_bytes);
- pkts_decapsulated += stats_n_packets;
- stats_n_packets = stats_n_bytes = 0;
- }
- stats_sw_if_index = sw_if_index0;
- }
- stats_n_packets += 1;
- stats_n_bytes += len0;
+ /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
+ vnet_buffer(b1)->sw_if_index[VLIB_RX] = t1->sw_if_index;
+ pkts_decapsulated++;
- trace0:
- b0->error = error0 ? node->errors[error0] : 0;
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, stats_t1->sw_if_index, 1, len1);
+ }
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
- vxlan_rx_trace_t *tr
- = vlib_add_trace (vm, node, b0, sizeof (*tr));
+ vxlan_rx_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->next_index = next0;
tr->error = error0;
- tr->tunnel_index = tunnel_index0;
+ tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels;
tr->vni = vnet_get_vni (vxlan0);
}
-
- if (PREDICT_FALSE (vxlan1->flags != VXLAN_FLAGS_I))
- {
- error1 = VXLAN_ERROR_BAD_FLAGS;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
-
- if (is_ip4) {
- /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
- vxlan4_tunnel_key_t key4_1 = {
- .src = ip4_1->src_address.as_u32,
- .vni = vxlan1->vni_reserved
- };
-
- if (PREDICT_FALSE (key4_1.as_u64 != last_key4.as_u64))
- {
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_1.as_u64);
- if (PREDICT_FALSE (p == NULL))
- {
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
- last_key4 = key4_1;
- last_tunnel_index = p[0];
- }
- tunnel_index1 = last_tunnel_index;
- stats_t1 = t1 = pool_elt_at_index (vxm->tunnels, tunnel_index1);
-
- /* Validate VXLAN tunnel encap-fib index against packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b1, t1, is_ip4) == 0))
- {
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip4_1->dst_address.as_u32 == t1->src.ip4.as_u32))
- goto next1; /* valid packet */
- if (PREDICT_FALSE (ip4_address_is_multicast (&ip4_1->dst_address)))
- {
- /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */
- key4_1.src = ip4_1->dst_address.as_u32;
-
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_1.as_u64);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t1 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next1; /* valid packet */
- }
- }
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
-
- } else /* !is_ip4 */ {
- /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
- vxlan6_tunnel_key_t key6_1 = {
- .src = ip6_1->src_address,
- .vni = vxlan1->vni_reserved,
- };
-
- if (PREDICT_FALSE (memcmp(&key6_1, &last_key6, sizeof(last_key6)) != 0))
- {
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_1);
- if (PREDICT_FALSE (p == NULL))
- {
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
-
- clib_memcpy (&last_key6, &key6_1, sizeof(key6_1));
- last_tunnel_index = p[0];
- }
- tunnel_index1 = last_tunnel_index;
- stats_t1 = t1 = pool_elt_at_index (vxm->tunnels, tunnel_index1);
-
- /* Validate VXLAN tunnel encap-fib index agaist packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b1, t1, is_ip4) == 0))
- {
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip6_address_is_equal (&ip6_1->dst_address,
- &t1->src.ip6)))
- goto next1; /* valid packet */
- if (PREDICT_FALSE (ip6_address_is_multicast (&ip6_1->dst_address)))
- {
- key6_1.src = ip6_1->dst_address;
-
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_1);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t1 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next1; /* valid packet */
- }
- }
- error1 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next1 = VXLAN_INPUT_NEXT_DROP;
- goto trace1;
- }
-
- next1:
- next1 = t1->decap_next_index;
- u32 len1 = vlib_buffer_length_in_chain (vm, b1);
-
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- if (PREDICT_TRUE(next1 == VXLAN_INPUT_NEXT_L2_INPUT))
- vnet_update_l2_len (b1);
-
- /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
- vnet_buffer(b1)->sw_if_index[VLIB_RX] = t1->sw_if_index;
-
- /* Batch stats increment on the same vxlan tunnel so counter
- is not incremented per packet */
- u32 sw_if_index1 = stats_t1->sw_if_index;
- if (PREDICT_FALSE (sw_if_index1 != stats_sw_if_index))
- {
- if (stats_n_packets)
- {
- vlib_increment_combined_counter
- (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- thread_index, stats_sw_if_index,
- stats_n_packets, stats_n_bytes);
- pkts_decapsulated += stats_n_packets;
- stats_n_packets = stats_n_bytes = 0;
- }
- stats_sw_if_index = sw_if_index1;
- }
- stats_n_packets += 1;
- stats_n_bytes += len1;
-
- trace1:
- b1->error = error1 ? node->errors[error1] : 0;
-
- if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
{
- vxlan_rx_trace_t *tr
- = vlib_add_trace (vm, node, b1, sizeof (*tr));
+ vxlan_rx_trace_t *tr = vlib_add_trace (vm, node, b1, sizeof (*tr));
tr->next_index = next1;
tr->error = error1;
- tr->tunnel_index = tunnel_index1;
+ tr->tunnel_index = t1 == 0 ? ~0 : t1 - vxm->tunnels;
tr->vni = vnet_get_vni (vxlan1);
}
@@ -456,25 +341,19 @@ vxlan_input (vlib_main_t * vm,
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- ip4_header_t * ip4_0;
- ip6_header_t * ip6_0;
- vxlan_tunnel_t * t0, * stats_t0;
-
- bi0 = from[0];
- to_next[0] = bi0;
+ u32 bi0 = to_next[0] = from[0];
from += 1;
to_next += 1;
n_left_from -= 1;
n_left_to_next -= 1;
- b0 = vlib_get_buffer (vm, bi0);
+ vlib_buffer_t * b0 = vlib_get_buffer (vm, bi0);
/* udp leaves current_data pointing at the vxlan header */
void * cur0 = vlib_buffer_get_current (b0);
vxlan_header_t * vxlan0 = cur0;
+ ip4_header_t * ip4_0;
+ ip6_header_t * ip6_0;
if (is_ip4)
ip4_0 = cur0 -sizeof(udp_header_t) - sizeof(ip4_header_t);
else
@@ -483,154 +362,55 @@ vxlan_input (vlib_main_t * vm,
/* pop (ip, udp, vxlan) */
vlib_buffer_advance (b0, sizeof(*vxlan0));
- u32 tunnel_index0 = ~0;
- u32 error0 = 0;
-
- if (PREDICT_FALSE (vxlan0->flags != VXLAN_FLAGS_I))
- {
- error0 = VXLAN_ERROR_BAD_FLAGS;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
+ vxlan_tunnel_t * t0, * stats_t0;
+ if (is_ip4)
+ t0 = vxlan4_find_tunnel (vxm, &last4, ip4_0, vxlan0, &stats_t0);
+ else
+ t0 = vxlan6_find_tunnel (vxm, &last6, ip6_0, vxlan0, &stats_t0);
- if (is_ip4) {
- vxlan4_tunnel_key_t key4_0 = {
- .src = ip4_0->src_address.as_u32,
- .vni = vxlan0->vni_reserved,
- };
-
- /* Make sure unicast VXLAN tunnel exist by packet SIP and VNI */
- if (PREDICT_FALSE (key4_0.as_u64 != last_key4.as_u64))
- {
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
- if (PREDICT_FALSE (p == NULL))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
- last_key4 = key4_0;
- last_tunnel_index = p[0];
- }
- tunnel_index0 = last_tunnel_index;
- stats_t0 = t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);
-
- /* Validate VXLAN tunnel encap-fib index agaist packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b0, t0, is_ip4) == 0))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip4_0->dst_address.as_u32 == t0->src.ip4.as_u32))
- goto next00; /* valid packet */
- if (PREDICT_FALSE (ip4_address_is_multicast (&ip4_0->dst_address)))
- {
- /* Make sure mcast VXLAN tunnel exist by packet DIP and VNI */
- key4_0.src = ip4_0->dst_address.as_u32;
- uword * p = hash_get (vxm->vxlan4_tunnel_by_key, key4_0.as_u64);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next00; /* valid packet */
- }
- }
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
-
- } else /* !is_ip4 */ {
- /* Make sure VXLAN tunnel exist according to packet SIP and VNI */
- vxlan6_tunnel_key_t key6_0 = {
- .src = ip6_0->src_address,
- .vni = vxlan0->vni_reserved,
- };
-
- if (PREDICT_FALSE (memcmp(&key6_0, &last_key6, sizeof(last_key6)) != 0))
- {
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
- if (PREDICT_FALSE (p == NULL))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
- clib_memcpy (&last_key6, &key6_0, sizeof(key6_0));
- last_tunnel_index = p[0];
- }
- tunnel_index0 = last_tunnel_index;
- stats_t0 = t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);
-
- /* Validate VXLAN tunnel encap-fib index agaist packet */
- if (PREDICT_FALSE (validate_vxlan_fib (b0, t0, is_ip4) == 0))
- {
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
-
- /* Validate VXLAN tunnel SIP against packet DIP */
- if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address,
- &t0->src.ip6)))
- goto next00; /* valid packet */
- if (PREDICT_FALSE (ip6_address_is_multicast (&ip6_0->dst_address)))
- {
- key6_0.src = ip6_0->dst_address;
- uword * p = hash_get_mem (vxm->vxlan6_tunnel_by_key, &key6_0);
- if (PREDICT_TRUE (p != NULL))
- {
- stats_t0 = pool_elt_at_index (vxm->tunnels, p[0]);
- goto next00; /* valid packet */
- }
- }
- error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
- next0 = VXLAN_INPUT_NEXT_DROP;
- goto trace00;
- }
+ uword len0 = vlib_buffer_length_in_chain (vm, b0);
- next00:
- next0 = t0->decap_next_index;
- u32 len0 = vlib_buffer_length_in_chain (vm, b0);
+ u32 next0;
+ u8 error0 = 0;
+ /* Validate VXLAN tunnel encap-fib index agaist packet */
+ if (PREDICT_FALSE (t0 == 0 || validate_vxlan_fib (b0, t0, is_ip4) == 0 ||
+ vxlan0->flags != VXLAN_FLAGS_I))
+ {
+ next0 = VXLAN_INPUT_NEXT_DROP;
+
+ if (t0 != 0 && vxlan0->flags != VXLAN_FLAGS_I)
+ {
+ error0 = VXLAN_ERROR_BAD_FLAGS;
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, stats_t0->sw_if_index, 1, len0);
+ }
+ else
+ error0 = VXLAN_ERROR_NO_SUCH_TUNNEL;
+ b0->error = node->errors[error0];
+ }
+ else
+ {
+ next0 = t0->decap_next_index;
- /* Required to make the l2 tag push / pop code work on l2 subifs */
- if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT))
- vnet_update_l2_len (b0);
+ /* Required to make the l2 tag push / pop code work on l2 subifs */
+ if (PREDICT_TRUE(next0 == VXLAN_INPUT_NEXT_L2_INPUT))
+ vnet_update_l2_len (b0);
- /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
- vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
+ /* Set packet input sw_if_index to unicast VXLAN tunnel for learning */
+ vnet_buffer(b0)->sw_if_index[VLIB_RX] = t0->sw_if_index;
+ pkts_decapsulated++;
- /* Batch stats increment on the same vxlan tunnel so counter
- is not incremented per packet */
- u32 sw_if_index0 = stats_t0->sw_if_index;
- if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
- {
- if (stats_n_packets)
- {
- vlib_increment_combined_counter
- (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- thread_index, stats_sw_if_index,
- stats_n_packets, stats_n_bytes);
- pkts_decapsulated += stats_n_packets;
- stats_n_packets = stats_n_bytes = 0;
- }
- stats_sw_if_index = sw_if_index0;
- }
- stats_n_packets += 1;
- stats_n_bytes += len0;
-
-
- trace00:
- b0->error = error0 ? node->errors[error0] : 0;
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, stats_t0->sw_if_index, 1, len0);
+ }
- if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
+ if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
- vxlan_rx_trace_t *tr
+ vxlan_rx_trace_t *tr
= vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->next_index = next0;
tr->error = error0;
- tr->tunnel_index = tunnel_index0;
+ tr->tunnel_index = t0 == 0 ? ~0 : t0 - vxm->tunnels;
tr->vni = vnet_get_vni (vxlan0);
}
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
@@ -640,16 +420,6 @@ vxlan_input (vlib_main_t * vm,
vlib_put_next_frame (vm, node, next_index, n_left_to_next);
}
- /* Increment any remaining batch stats */
- if (stats_n_packets)
- {
- pkts_decapsulated += stats_n_packets;
- vlib_increment_combined_counter
- (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
- thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
- node->runtime_data[0] = stats_sw_if_index;
- }
-
/* Do we still need this now that tunnel tx stats is kept? */
u32 node_idx = is_ip4 ? vxlan4_input_node.index : vxlan6_input_node.index;
vlib_node_increment_counter (vm, node_idx, VXLAN_ERROR_DECAPSULATED,
@@ -836,7 +606,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
goto exit0; /* not VXLAN packet */
/* Validate DIP against VTEPs*/
- if (is_ip4)
+ if (is_ip4)
{
if (addr4.as_u32 != ip40->dst_address.as_u32)
{
@@ -894,7 +664,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
}
- next0 = error0 ?
+ next0 = error0 ?
IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
b0->error = error0 ? error_node->errors[error0] : 0;
@@ -918,7 +688,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
goto exit1; /* not VXLAN packet */
/* Validate DIP against VTEPs*/
- if (is_ip4)
+ if (is_ip4)
{
if (addr4.as_u32 != ip41->dst_address.as_u32)
{
@@ -976,10 +746,10 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
error1 = (len_diff1 >= 0) ? error1 : IP6_ERROR_UDP_LENGTH;
}
- next1 = error1 ?
+ next1 = error1 ?
IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
b1->error = error1 ? error_node->errors[error1] : 0;
-
+
/* vxlan-input node expect current at VXLAN header */
if (is_ip4)
vlib_buffer_advance (b1, sizeof(ip4_header_t)+sizeof(udp_header_t));
@@ -1036,7 +806,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
goto exit; /* not VXLAN packet */
/* Validate DIP against VTEPs*/
- if (is_ip4)
+ if (is_ip4)
{
if (addr4.as_u32 != ip40->dst_address.as_u32)
{
@@ -1094,7 +864,7 @@ ip_vxlan_bypass_inline (vlib_main_t * vm,
error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
}
- next0 = error0 ?
+ next0 = error0 ?
IP_VXLAN_BYPASS_NEXT_DROP : IP_VXLAN_BYPASS_NEXT_VXLAN;
b0->error = error0 ? error_node->errors[error0] : 0;
diff --git a/src/vnet/vxlan/encap.c b/src/vnet/vxlan/encap.c
index c5522bc81b2..107e66e4335 100644
--- a/src/vnet/vxlan/encap.c
+++ b/src/vnet/vxlan/encap.c
@@ -73,7 +73,6 @@ vxlan_encap_inline (vlib_main_t * vm,
im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX;
u32 pkts_encapsulated = 0;
u32 thread_index = vlib_get_thread_index();
- u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;
u32 sw_if_index0 = 0, sw_if_index1 = 0;
u32 next0 = 0, next1 = 0;
vxlan_tunnel_t * t0 = NULL, * t1 = NULL;
@@ -83,8 +82,6 @@ vxlan_encap_inline (vlib_main_t * vm,
n_left_from = from_frame->n_vectors;
next_index = node->cached_next_index;
- stats_sw_if_index = node->runtime_data[0];
- stats_n_packets = stats_n_bytes = 0;
STATIC_ASSERT_SIZEOF(ip6_vxlan_header_t, 56);
STATIC_ASSERT_SIZEOF(ip4_vxlan_header_t, 36);
@@ -272,32 +269,10 @@ vxlan_encap_inline (vlib_main_t * vm,
udp1->checksum = 0xffff;
}
- /* Batch stats increment on the same vxlan tunnel so counter is not
- incremented per packet. Note stats are still incremented for deleted
- and admin-down tunnel where packets are dropped. It is not worthwhile
- to check for this rare case and affect normal path performance. */
- if (sw_if_index0 == sw_if_index1)
- {
- if (PREDICT_FALSE(sw_if_index0 != stats_sw_if_index))
- {
- if (stats_n_packets)
- {
- vlib_increment_combined_counter (tx_counter, thread_index,
- stats_sw_if_index, stats_n_packets, stats_n_bytes);
- stats_n_packets = stats_n_bytes = 0;
- }
- stats_sw_if_index = sw_if_index0;
- }
- stats_n_packets += 2;
- stats_n_bytes += len0 + len1;
- }
- else
- {
- vlib_increment_combined_counter (tx_counter, thread_index,
- sw_if_index0, 1, len0);
- vlib_increment_combined_counter (tx_counter, thread_index,
- sw_if_index1, 1, len1);
- }
+ vlib_increment_combined_counter (tx_counter, thread_index,
+ sw_if_index0, 1, len0);
+ vlib_increment_combined_counter (tx_counter, thread_index,
+ sw_if_index1, 1, len1);
pkts_encapsulated += 2;
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
@@ -413,22 +388,8 @@ vxlan_encap_inline (vlib_main_t * vm,
udp0->checksum = 0xffff;
}
- /* Batch stats increment on the same vxlan tunnel so counter is not
- incremented per packet. Note stats are still incremented for deleted
- and admin-down tunnel where packets are dropped. It is not worthwhile
- to check for this rare case and affect normal path performance. */
- if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
- {
- if (stats_n_packets)
- {
- vlib_increment_combined_counter (tx_counter, thread_index,
- stats_sw_if_index, stats_n_packets, stats_n_bytes);
- stats_n_bytes = stats_n_packets = 0;
- }
- stats_sw_if_index = sw_if_index0;
- }
- stats_n_packets += 1;
- stats_n_bytes += len0;
+ vlib_increment_combined_counter (tx_counter, thread_index,
+ sw_if_index0, 1, len0);
pkts_encapsulated ++;
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
@@ -451,14 +412,6 @@ vxlan_encap_inline (vlib_main_t * vm,
VXLAN_ENCAP_ERROR_ENCAPSULATED,
pkts_encapsulated);
- /* Increment any remaining batch stats */
- if (stats_n_packets)
- {
- vlib_increment_combined_counter (tx_counter, thread_index,
- stats_sw_if_index, stats_n_packets, stats_n_bytes);
- node->runtime_data[0] = stats_sw_if_index;
- }
-
return from_frame->n_vectors;
}