tcp: avoid fr segments less than mss if possible

[vpp.git] / src / vnet / vxlan-gpe / encap.c

diff --git a/src/vnet/vxlan-gpe/encap.c b/src/vnet/vxlan-gpe/encap.c
index 1cca415..a769861 100644 (file)
--- a/src/vnet/vxlan-gpe/encap.c
+++ b/src/vnet/vxlan-gpe/encap.c
@@ -22,6 +22,7 @@
 #include <vnet/vnet.h>
 #include <vnet/ip/ip.h>
 #include <vnet/ethernet/ethernet.h>
+#include <vnet/udp/udp_inlines.h>
 #include <vnet/vxlan-gpe/vxlan_gpe.h>
 
 /** Statistics (not really errors) */
@@ -87,13 +88,15 @@ format_vxlan_gpe_encap_trace (u8 * s, va_list * args)
  *
  */
 always_inline void
-vxlan_gpe_encap_one_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0,
-                           vxlan_gpe_tunnel_t * t0, u32 * next0, u8 is_v4)
+vxlan_gpe_encap_one_inline (vxlan_gpe_main_t *ngm, vlib_buffer_t *b0,
+                           vxlan_gpe_tunnel_t *t0, u32 *next0,
+                           ip_address_family_t af)
 {
   ASSERT (sizeof (ip4_vxlan_gpe_header_t) == 36);
   ASSERT (sizeof (ip6_vxlan_gpe_header_t) == 56);
 
-  ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, is_v4);
+  ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, af,
+                   N_AF, UDP_ENCAP_FIXUP_NONE);
   next0[0] = t0->encap_next_node;
 }
 
@@ -111,16 +114,18 @@ vxlan_gpe_encap_one_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0,
  *
  */
 always_inline void
-vxlan_gpe_encap_two_inline (vxlan_gpe_main_t * ngm, vlib_buffer_t * b0,
-                           vlib_buffer_t * b1, vxlan_gpe_tunnel_t * t0,
-                           vxlan_gpe_tunnel_t * t1, u32 * next0,
-                           u32 * next1, u8 is_v4)
+vxlan_gpe_encap_two_inline (vxlan_gpe_main_t *ngm, vlib_buffer_t *b0,
+                           vlib_buffer_t *b1, vxlan_gpe_tunnel_t *t0,
+                           vxlan_gpe_tunnel_t *t1, u32 *next0, u32 *next1,
+                           ip_address_family_t af)
 {
   ASSERT (sizeof (ip4_vxlan_gpe_header_t) == 36);
   ASSERT (sizeof (ip6_vxlan_gpe_header_t) == 56);
 
-  ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, is_v4);
-  ip_udp_encap_one (ngm->vlib_main, b1, t1->rewrite, t1->rewrite_size, is_v4);
+  ip_udp_encap_one (ngm->vlib_main, b0, t0->rewrite, t0->rewrite_size, af,
+                   N_AF, UDP_ENCAP_FIXUP_NONE);
+  ip_udp_encap_one (ngm->vlib_main, b1, t1->rewrite, t1->rewrite_size, af,
+                   N_AF, UDP_ENCAP_FIXUP_NONE);
   next0[0] = next1[0] = t0->encap_next_node;
 }
 
@@ -169,7 +174,7 @@ vxlan_gpe_encap (vlib_main_t * vm,
       u32 sw_if_index0 = ~0, sw_if_index1 = ~0, len0, len1;
       vnet_hw_interface_t *hi0, *hi1;
       vxlan_gpe_tunnel_t *t0 = NULL, *t1 = NULL;
-      u8 is_ip4_0 = 0, is_ip4_1 = 0;
+      ip_address_family_t af_0 = AF_IP4, af_1 = AF_IP4;
 
       vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
 
@@ -200,7 +205,7 @@ vxlan_gpe_encap (vlib_main_t * vm,
          n_left_to_next -= 2;
          n_left_from -= 2;
 
-         /* get the flag "is_ip4" */
+         /* get "af_0" */
          if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX])
            {
              sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
@@ -209,10 +214,10 @@ vxlan_gpe_encap (vlib_main_t * vm,
                                           vnet_buffer (b[0])->sw_if_index
                                           [VLIB_TX]);
              t0 = pool_elt_at_index (ngm->tunnels, hi0->dev_instance);
-             is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
+             af_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4 ? AF_IP4 : AF_IP6);
            }
 
-         /* get the flag "is_ip4" */
+         /* get "af_1" */
          if (sw_if_index1 != vnet_buffer (b[1])->sw_if_index[VLIB_TX])
            {
              if (sw_if_index0 == vnet_buffer (b[1])->sw_if_index[VLIB_TX])
@@ -220,7 +225,7 @@ vxlan_gpe_encap (vlib_main_t * vm,
                  sw_if_index1 = sw_if_index0;
                  hi1 = hi0;
                  t1 = t0;
-                 is_ip4_1 = is_ip4_0;
+                 af_1 = af_0;
                }
              else
                {
@@ -230,19 +235,20 @@ vxlan_gpe_encap (vlib_main_t * vm,
                                               vnet_buffer (b[1])->sw_if_index
                                               [VLIB_TX]);
                  t1 = pool_elt_at_index (ngm->tunnels, hi1->dev_instance);
-                 is_ip4_1 = (t1->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
+                 af_1 =
+                   (t1->flags & VXLAN_GPE_TUNNEL_IS_IPV4 ? AF_IP4 : AF_IP6);
                }
            }
 
-         if (PREDICT_TRUE (is_ip4_0 == is_ip4_1))
+         if (PREDICT_TRUE (af_0 == af_1))
            {
              vxlan_gpe_encap_two_inline (ngm, b[0], b[1], t0, t1, &next0,
-                                         &next1, is_ip4_0);
+                                         &next1, af_0);
            }
          else
            {
-             vxlan_gpe_encap_one_inline (ngm, b[0], t0, &next0, is_ip4_0);
-             vxlan_gpe_encap_one_inline (ngm, b[1], t1, &next1, is_ip4_1);
+             vxlan_gpe_encap_one_inline (ngm, b[0], t0, &next0, af_0);
+             vxlan_gpe_encap_one_inline (ngm, b[1], t1, &next1, af_1);
            }
 
          /* Reset to look up tunnel partner in the configured FIB */
@@ -324,7 +330,7 @@ vxlan_gpe_encap (vlib_main_t * vm,
          n_left_from -= 1;
          n_left_to_next -= 1;
 
-         /* get the flag "is_ip4" */
+         /* get "af_0" */
          if (sw_if_index0 != vnet_buffer (b[0])->sw_if_index[VLIB_TX])
            {
              sw_if_index0 = vnet_buffer (b[0])->sw_if_index[VLIB_TX];
@@ -335,10 +341,10 @@ vxlan_gpe_encap (vlib_main_t * vm,
 
              t0 = pool_elt_at_index (ngm->tunnels, hi0->dev_instance);
 
-             is_ip4_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4);
+             af_0 = (t0->flags & VXLAN_GPE_TUNNEL_IS_IPV4 ? AF_IP4 : AF_IP6);
            }
 
-         vxlan_gpe_encap_one_inline (ngm, b[0], t0, &next0, is_ip4_0);
+         vxlan_gpe_encap_one_inline (ngm, b[0], t0, &next0, af_0);
 
          /* Reset to look up tunnel partner in the configured FIB */
          vnet_buffer (b[0])->sw_if_index[VLIB_TX] = t0->encap_fib_index;
@@ -398,7 +404,6 @@ vxlan_gpe_encap (vlib_main_t * vm,
   return from_frame->n_vectors;
 }
 
-/* *INDENT-OFF* */
 VLIB_REGISTER_NODE (vxlan_gpe_encap_node) = {
   .function = vxlan_gpe_encap,
   .name = "vxlan-gpe-encap",
@@ -417,7 +422,6 @@ VLIB_REGISTER_NODE (vxlan_gpe_encap_node) = {
     [VXLAN_GPE_ENCAP_NEXT_DROP] = "error-drop",
   },
 };
-/* *INDENT-ON* */
 
 
 /*