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authorJohn Lo <loj@cisco.com>2018-01-23 19:21:34 -0500
committerDave Barach <openvpp@barachs.net>2018-01-24 13:56:45 +0000
commite5453d0fa29f39a7f78a7e22815566a7f4c9e5ef (patch)
tree805b3d5ad2ca314a99d9460b202c483b4ae5550a /src/vnet/geneve
parentd95c39e87bf9d21b2a9d4c49fdf7ebca2a5eab3d (diff)
Improve tunnel interface creation performance
Modify interface creation to allow creation of tunnel interfaces without dedicated per tunnel output and tx nodes which are not used for most tunnel types. Also changed interface-output node function vnet_per_buffer_interface_output() so it does not rely on hw_if_index as the next node index which is not flexible nor efficient for large scale tunnel interfaces. The improvenemts are done for VXLAN, VXLAN-GPE, GENEVE and GTPU tunnels. GRE tunnel is still using per tunnel output nodes which will be changed in a separate patch with other GRE enhencements. Change-Id: I4123c01c0d2ead814417a867adb8c8a407e4df55 Signed-off-by: John Lo <loj@cisco.com>
Diffstat (limited to 'src/vnet/geneve')
-rw-r--r--src/vnet/geneve/geneve.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/src/vnet/geneve/geneve.c b/src/vnet/geneve/geneve.c
index 6bc4b67d10d..1fe73e44cdd 100644
--- a/src/vnet/geneve/geneve.c
+++ b/src/vnet/geneve/geneve.c
@@ -82,14 +82,6 @@ format_geneve_name (u8 * s, va_list * args)
return format (s, "geneve_tunnel%d", dev_instance);
}
-static uword
-dummy_interface_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- clib_warning ("you shouldn't be here, leaking buffers...");
- return frame->n_vectors;
-}
-
static clib_error_t *
geneve_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
@@ -105,7 +97,6 @@ VNET_DEVICE_CLASS (geneve_device_class, static) = {
.name = "GENEVE",
.format_device_name = format_geneve_name,
.format_tx_trace = format_geneve_encap_trace,
- .tx_function = dummy_interface_tx,
.admin_up_down_function = geneve_interface_admin_up_down,
};
/* *INDENT-ON* */
@@ -465,6 +456,11 @@ int vnet_geneve_add_del_tunnel
hi = vnet_get_hw_interface (vnm, hw_if_index);
}
+ /* Set geneve tunnel output node */
+ u32 encap_index = !is_ip6 ?
+ geneve4_encap_node.index : geneve6_encap_node.index;
+ vnet_set_interface_output_node (vnm, hw_if_index, encap_index);
+
t->hw_if_index = hw_if_index;
t->sw_if_index = sw_if_index = hi->sw_if_index;
@@ -484,8 +480,6 @@ int vnet_geneve_add_del_tunnel
fib_node_init (&t->node, FIB_NODE_TYPE_GENEVE_TUNNEL);
fib_prefix_t tun_remote_pfx;
- u32 encap_index = !is_ip6 ?
- geneve4_encap_node.index : geneve6_encap_node.index;
vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL;
fib_prefix_from_ip46_addr (&t->remote, &tun_remote_pfx);
@@ -576,9 +570,6 @@ int vnet_geneve_add_del_tunnel
flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER;
}
- /* Set geneve tunnel output node */
- hi->output_node_index = encap_index;
-
vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class =
flood_class;
}