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authorNeale Ranns <nranns@cisco.com>2018-09-05 09:13:57 -0700
committerJohn Lo <loj@cisco.com>2018-09-25 16:29:19 +0000
commitb474380f82b75d9640f9bf6ee78c891a6794dbfb (patch)
tree1deee7eda6675a9886ddebb4a38249110f67170d /src/vnet/l2/l2_input.c
parent6a30b5f9182a44989e97bbc044f29adccdef09b2 (diff)
L2 BD: introduce a BD interface on which to send UU packets
Change-Id: I21ad6b04c19c8735d057174b1f260a59f2812241 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/l2/l2_input.c')
-rw-r--r--src/vnet/l2/l2_input.c68
1 files changed, 49 insertions, 19 deletions
diff --git a/src/vnet/l2/l2_input.c b/src/vnet/l2/l2_input.c
index 1c9ddaac04a..f94ef668c41 100644
--- a/src/vnet/l2/l2_input.c
+++ b/src/vnet/l2/l2_input.c
@@ -573,7 +573,7 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
u32 mode, /* One of L2 modes or back to L3 mode */
u32 sw_if_index, /* sw interface index */
u32 bd_index, /* for bridged interface */
- u32 bvi, /* the bridged interface is the BVI */
+ l2_bd_port_type_t port_type, /* port_type */
u32 shg, /* the bridged interface split horizon group */
u32 xc_sw_if_index) /* peer interface for xconnect */
{
@@ -613,6 +613,11 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
si = vnet_get_sw_interface (vnm, sw_if_index);
si->flood_class = VNET_FLOOD_CLASS_NO_FLOOD;
}
+ if (bd_config->uu_fwd_sw_if_index == sw_if_index)
+ {
+ bd_config->uu_fwd_sw_if_index = ~0;
+ bd_config->feature_bitmap &= ~L2INPUT_FEAT_UU_FWD;
+ }
/* Clear MACs learned on the interface */
if ((config->feature_bitmap & L2INPUT_FEAT_LEARN) ||
@@ -657,6 +662,8 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
if (mode == MODE_L2_BRIDGE)
{
+ u8 member_flags;
+
/*
* Remove a check that the interface must be an Ethernet.
* Specifically so we can bridge to L3 tunnel interfaces.
@@ -676,8 +683,12 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
* Enable forwarding, flooding, learning and ARP termination by default
* (note that ARP term is disabled on BD feature bitmap by default)
*/
- config->feature_bitmap |= L2INPUT_FEAT_FWD | L2INPUT_FEAT_UU_FLOOD |
- L2INPUT_FEAT_FLOOD | L2INPUT_FEAT_LEARN | L2INPUT_FEAT_ARP_TERM;
+ config->feature_bitmap |= (L2INPUT_FEAT_FWD |
+ L2INPUT_FEAT_UU_FLOOD |
+ L2INPUT_FEAT_UU_FWD |
+ L2INPUT_FEAT_FLOOD |
+ L2INPUT_FEAT_LEARN |
+ L2INPUT_FEAT_ARP_TERM);
/* Make sure last-chance drop is configured */
config->feature_bitmap |= L2INPUT_FEAT_DROP;
@@ -692,7 +703,7 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
/* TODO: think: add l2fib entry even for non-bvi interface? */
/* Do BVI interface initializations */
- if (bvi)
+ if (L2_BD_PORT_TYPE_BVI == port_type)
{
vnet_sw_interface_t *si;
@@ -715,16 +726,29 @@ set_int_l2_mode (vlib_main_t * vm, vnet_main_t * vnet_main, /* */
/* since this is a BVI interface we want to flood to it */
si = vnet_get_sw_interface (vnm, sw_if_index);
si->flood_class = VNET_FLOOD_CLASS_BVI;
+ member_flags = L2_FLOOD_MEMBER_BVI;
+ }
+ else if (L2_BD_PORT_TYPE_UU_FWD == port_type)
+ {
+ bd_config->uu_fwd_sw_if_index = sw_if_index;
+ bd_config->feature_bitmap |= L2INPUT_FEAT_UU_FWD;
+ }
+ else
+ {
+ member_flags = L2_FLOOD_MEMBER_NORMAL;
}
- /* Add interface to bridge-domain flood vector */
- l2_flood_member_t member = {
- .sw_if_index = sw_if_index,
- .flags = bvi ? L2_FLOOD_MEMBER_BVI : L2_FLOOD_MEMBER_NORMAL,
- .shg = shg,
- };
- bd_add_member (bd_config, &member);
-
+ if (L2_BD_PORT_TYPE_NORMAL == port_type ||
+ L2_BD_PORT_TYPE_BVI == port_type)
+ {
+ /* Add interface to bridge-domain flood vector */
+ l2_flood_member_t member = {
+ .sw_if_index = sw_if_index,
+ .flags = member_flags,
+ .shg = shg,
+ };
+ bd_add_member (bd_config, &member);
+ }
}
else if (mode == MODE_L2_XC)
{
@@ -827,10 +851,10 @@ int_l2_bridge (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
vnet_main_t *vnm = vnet_get_main ();
+ l2_bd_port_type_t port_type;
clib_error_t *error = 0;
u32 bd_index, bd_id;
u32 sw_if_index;
- u32 bvi;
u32 rc;
u32 shg;
@@ -857,7 +881,11 @@ int_l2_bridge (vlib_main_t * vm,
bd_index = bd_find_or_add_bd_index (&bd_main, bd_id);
/* optional bvi */
- bvi = unformat (input, "bvi");
+ port_type = L2_BD_PORT_TYPE_NORMAL;
+ if (unformat (input, "bvi"))
+ port_type = L2_BD_PORT_TYPE_BVI;
+ if (unformat (input, "uu-fwd"))
+ port_type = L2_BD_PORT_TYPE_UU_FWD;
/* optional split horizon group */
shg = 0;
@@ -865,8 +893,8 @@ int_l2_bridge (vlib_main_t * vm,
/* set the interface mode */
if ((rc =
- set_int_l2_mode (vm, vnm, MODE_L2_BRIDGE, sw_if_index, bd_index, bvi,
- shg, 0)))
+ set_int_l2_mode (vm, vnm, MODE_L2_BRIDGE, sw_if_index, bd_index,
+ port_type, shg, 0)))
{
if (rc == MODE_ERROR_ETH)
{
@@ -920,7 +948,7 @@ done:
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (int_l2_bridge_cli, static) = {
.path = "set interface l2 bridge",
- .short_help = "set interface l2 bridge <interface> <bridge-domain-id> [bvi] [shg]",
+ .short_help = "set interface l2 bridge <interface> <bridge-domain-id> [bvi|uu-fwd] [shg]",
.function = int_l2_bridge,
};
/* *INDENT-ON* */
@@ -956,7 +984,8 @@ int_l2_xc (vlib_main_t * vm,
/* set the interface mode */
if (set_int_l2_mode
- (vm, vnm, MODE_L2_XC, sw_if_index, 0, 0, 0, xc_sw_if_index))
+ (vm, vnm, MODE_L2_XC, sw_if_index, 0, L2_BD_PORT_TYPE_NORMAL,
+ 0, xc_sw_if_index))
{
error = clib_error_return (0, "invalid configuration for interface",
format_unformat_error, input);
@@ -1010,7 +1039,8 @@ int_l3 (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
}
/* set the interface mode */
- if (set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0, 0, 0, 0))
+ if (set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0,
+ L2_BD_PORT_TYPE_NORMAL, 0, 0))
{
error = clib_error_return (0, "invalid configuration for interface",
format_unformat_error, input);