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authorNeale Ranns <nranns@cisco.com>2019-06-06 10:35:07 +0000
committerNeale Ranns <nranns@cisco.com>2019-06-06 10:35:07 +0000
commita342da22f35676114ca928c65b0219fac8009f7a (patch)
treeba0e1ab147345a48e111f49ae2cdcfe32956609e /src/vnet/dpo
parent21aa8f1022590b8b5caf819b4bbd485de0f1dfe5 (diff)
DVR: Control the reinject as L2 or L3 based on the output interface type
Change-Id: Ib4cdbe8a6a1d10a643941c13aa0acbed410f876c Type: Feature Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/dpo')
-rw-r--r--src/vnet/dpo/dvr_dpo.c76
-rw-r--r--src/vnet/dpo/dvr_dpo.h17
2 files changed, 83 insertions, 10 deletions
diff --git a/src/vnet/dpo/dvr_dpo.c b/src/vnet/dpo/dvr_dpo.c
index 877f42a9893..6dd58108091 100644
--- a/src/vnet/dpo/dvr_dpo.c
+++ b/src/vnet/dpo/dvr_dpo.c
@@ -17,6 +17,7 @@
#include <vnet/fib/fib_node.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
+#include <vnet/l2/l2_input.h>
#ifndef CLIB_MARCH_VARIANT
dvr_dpo_t *dvr_dpo_pool;
@@ -91,6 +92,7 @@ dvr_dpo_add_or_lock (u32 sw_if_index,
dpo_proto_t dproto,
dpo_id_t *dpo)
{
+ l2_input_config_t *config;
dvr_dpo_t *dd;
vec_validate_init_empty(dvr_dpo_db[dproto],
@@ -106,6 +108,17 @@ dvr_dpo_add_or_lock (u32 sw_if_index,
dvr_dpo_db[dproto][sw_if_index] = dvr_dpo_get_index(dd);
+ config = l2input_intf_config (sw_if_index);
+
+ if (config->bridge || config->xconnect)
+ {
+ dd->dd_reinject = DVR_REINJECT_L2;
+ }
+ else
+ {
+ dd->dd_reinject = DVR_REINJECT_L3;
+ }
+
/*
* enable the reinject into L2 path feature on the interface
*/
@@ -168,6 +181,23 @@ VNET_SW_INTERFACE_ADD_DEL_FUNCTION(
#ifndef CLIB_MARCH_VARIANT
static u8*
+format_dvr_reinject (u8* s, va_list *ap)
+{
+ dvr_dpo_reinject_t ddr = va_arg(*ap, int);
+
+ switch (ddr)
+ {
+ case DVR_REINJECT_L2:
+ s = format (s, "l2");
+ break;
+ case DVR_REINJECT_L3:
+ s = format (s, "l3");
+ break;
+ }
+ return (s);
+}
+
+static u8*
format_dvr_dpo (u8* s, va_list *ap)
{
index_t index = va_arg(*ap, index_t);
@@ -175,10 +205,12 @@ format_dvr_dpo (u8* s, va_list *ap)
vnet_main_t * vnm = vnet_get_main();
dvr_dpo_t *dd = dvr_dpo_get(index);
- return (format(s, "dvr-%U-dpo",
+ return (format(s, "%U-dvr-%U-dpo %U",
+ format_dpo_proto, dd->dd_proto,
format_vnet_sw_interface_name,
vnm,
- vnet_get_sw_interface(vnm, dd->dd_sw_if_index)));
+ vnet_get_sw_interface(vnm, dd->dd_sw_if_index),
+ format_dvr_reinject, dd->dd_reinject));
}
static void
@@ -300,6 +332,7 @@ dvr_dpo_inline (vlib_main_t * vm,
vnet_buffer(b1)->l2.l2_len =
vnet_buffer(b1)->ip.save_rewrite_length =
len1;
+
b0->flags |= VNET_BUFFER_F_IS_DVR;
b1->flags |= VNET_BUFFER_F_IS_DVR;
@@ -430,7 +463,8 @@ VLIB_REGISTER_NODE (ip6_dvr_dpo_node) = {
typedef enum dvr_reinject_next_t_
{
- DVR_REINJECT_OUTPUT = 0,
+ DVR_REINJECT_NEXT_L2,
+ DVR_REINJECT_NEXT_L3,
} dvr_reinject_next_t;
always_inline uword
@@ -454,8 +488,9 @@ dvr_reinject_inline (vlib_main_t * vm,
while (n_left_from >= 4 && n_left_to_next > 2)
{
dvr_reinject_next_t next0, next1;
+ const dvr_dpo_t *dd0, *dd1;
+ u32 bi0, bi1, ddi0, ddi1;
vlib_buffer_t *b0, *b1;
- u32 bi0, bi1;
bi0 = from[0];
to_next[0] = bi0;
@@ -470,12 +505,24 @@ dvr_reinject_inline (vlib_main_t * vm,
b1 = vlib_get_buffer (vm, bi1);
if (b0->flags & VNET_BUFFER_F_IS_DVR)
- next0 = DVR_REINJECT_OUTPUT;
+ {
+ ddi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+ dd0 = dvr_dpo_get(ddi0);
+ next0 = (dd0->dd_reinject == DVR_REINJECT_L2 ?
+ DVR_REINJECT_NEXT_L2 :
+ DVR_REINJECT_NEXT_L3);
+ }
else
vnet_feature_next( &next0, b0);
if (b1->flags & VNET_BUFFER_F_IS_DVR)
- next1 = DVR_REINJECT_OUTPUT;
+ {
+ ddi1 = vnet_buffer(b1)->ip.adj_index[VLIB_TX];
+ dd1 = dvr_dpo_get(ddi1);
+ next1 = (dd1->dd_reinject == DVR_REINJECT_L2 ?
+ DVR_REINJECT_NEXT_L2 :
+ DVR_REINJECT_NEXT_L3);
+ }
else
vnet_feature_next( &next1, b1);
@@ -502,8 +549,9 @@ dvr_reinject_inline (vlib_main_t * vm,
while (n_left_from > 0 && n_left_to_next > 0)
{
dvr_reinject_next_t next0;
+ const dvr_dpo_t *dd0;
vlib_buffer_t * b0;
- u32 bi0;
+ u32 bi0, ddi0;
bi0 = from[0];
to_next[0] = bi0;
@@ -515,7 +563,13 @@ dvr_reinject_inline (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
if (b0->flags & VNET_BUFFER_F_IS_DVR)
- next0 = DVR_REINJECT_OUTPUT;
+ {
+ ddi0 = vnet_buffer(b0)->ip.adj_index[VLIB_TX];
+ dd0 = dvr_dpo_get(ddi0);
+ next0 = (dd0->dd_reinject == DVR_REINJECT_L2 ?
+ DVR_REINJECT_NEXT_L2 :
+ DVR_REINJECT_NEXT_L3);
+ }
else
vnet_feature_next( &next0, b0);
@@ -556,7 +610,8 @@ VLIB_REGISTER_NODE (ip4_dvr_reinject_node) = {
.n_next_nodes = 1,
.next_nodes = {
- [DVR_REINJECT_OUTPUT] = "l2-output",
+ [DVR_REINJECT_NEXT_L2] = "l2-output",
+ [DVR_REINJECT_NEXT_L3] = "interface-output",
},
};
@@ -567,7 +622,8 @@ VLIB_REGISTER_NODE (ip6_dvr_reinject_node) = {
.n_next_nodes = 1,
.next_nodes = {
- [DVR_REINJECT_OUTPUT] = "l2-output",
+ [DVR_REINJECT_NEXT_L2] = "l2-output",
+ [DVR_REINJECT_NEXT_L3] = "interface-output",
},
};
diff --git a/src/vnet/dpo/dvr_dpo.h b/src/vnet/dpo/dvr_dpo.h
index 669c49201c8..4fef2811b10 100644
--- a/src/vnet/dpo/dvr_dpo.h
+++ b/src/vnet/dpo/dvr_dpo.h
@@ -19,6 +19,15 @@
#include <vnet/dpo/dpo.h>
/**
+ * Control how the reinject is performed
+ */
+typedef enum dvr_dpo_reinject_t_
+{
+ DVR_REINJECT_L2,
+ DVR_REINJECT_L3,
+} __clib_packed dvr_dpo_reinject_t;
+
+/**
* @brief
* The DVR DPO. Used as the resolving object for a DVR route.
* This is used, in place of the usual L3 Adjacency, to retransmit
@@ -40,11 +49,19 @@ typedef struct dvr_dpo_t_
dpo_proto_t dd_proto;
/**
+ * Control for how the re-inject is performed
+ */
+ dvr_dpo_reinject_t dd_reinject;
+
+ /**
* number of locks.
*/
u16 dd_locks;
} dvr_dpo_t;
+/* 8 bytes is a factor of cache line size so this struct will never span */
+STATIC_ASSERT_SIZEOF(dvr_dpo_t, 8);
+
extern void dvr_dpo_add_or_lock (u32 sw_if_index,
dpo_proto_t dproto,
dpo_id_t *dpo);