diff options
| author |   Ole Troan <ot@cisco.com> | 2018-06-07 10:17:57 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-06-11 10:25:59 +0000 |
| commit | d723161e038d00e59766aa67a6a0dcc350227e4b (patch) | |
| tree | 24f5a1d87ebdc0012f28d42aa80a9f5d760073bf /src/vnet/adj/rewrite.c | |
| parent | f4fd0d4217ab6c41fe6b093871bd40ac130e6486 (diff) | |
MTU: Software interface / Per-protocol MTU support
This patch separates setting of hardware interfaec and software
interface MTU. Software MTU is L2 payload MTU (i.e. not including L2
header). Per-protocol MTU for IPv4, IPv6 and MPLS can also be set.
Currently only IP4, IP6 are enabled in adjacency / rewrite code.
Documentation in src/vnet/MTU.md
Change-Id: Iee2fd6f0bbc8210748dd8e073ab9fab87d323690
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/adj/rewrite.c')
| -rw-r--r-- | src/vnet/adj/rewrite.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/vnet/adj/rewrite.c b/src/vnet/adj/rewrite.c index f4b26a9d0dd..1a87793eb1c 100644 --- a/src/vnet/adj/rewrite.c +++ b/src/vnet/adj/rewrite.c @@ -103,19 +103,22 @@ vnet_tx_node_index_for_sw_interface (vnet_main_t * vnm, u32 sw_if_index) void vnet_rewrite_init (vnet_main_t * vnm, u32 sw_if_index, + vnet_link_t linkt, u32 this_node, u32 next_node, vnet_rewrite_header_t * rw) { rw->sw_if_index = sw_if_index; rw->next_index = vlib_node_add_next (vnm->vlib_main, this_node, next_node); rw->max_l3_packet_bytes = - vnet_sw_interface_get_mtu (vnm, sw_if_index, VLIB_TX); + vnet_sw_interface_get_mtu (vnm, sw_if_index, vnet_link_to_mtu (linkt)); } void -vnet_rewrite_update_mtu (vnet_main_t * vnm, vnet_rewrite_header_t * rw) +vnet_rewrite_update_mtu (vnet_main_t * vnm, vnet_link_t linkt, + vnet_rewrite_header_t * rw) { rw->max_l3_packet_bytes = - vnet_sw_interface_get_mtu (vnm, rw->sw_if_index, VLIB_TX); + vnet_sw_interface_get_mtu (vnm, rw->sw_if_index, + vnet_link_to_mtu (linkt)); } void @@ -133,7 +136,7 @@ vnet_rewrite_for_sw_interface (vnet_main_t * vnm, vnet_get_hw_interface_class (vnm, hw->hw_class_index); u8 *rewrite = NULL; - vnet_rewrite_init (vnm, sw_if_index, node_index, + vnet_rewrite_init (vnm, sw_if_index, link_type, node_index, vnet_tx_node_index_for_sw_interface (vnm, sw_if_index), rw); |