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authorOle Troan <ot@cisco.com>2018-06-07 10:17:57 +0200
committerDamjan Marion <dmarion@me.com>2018-06-11 10:25:59 +0000
commitd723161e038d00e59766aa67a6a0dcc350227e4b (patch)
tree24f5a1d87ebdc0012f28d42aa80a9f5d760073bf /src/vnet/unix/tapcli.c
parentf4fd0d4217ab6c41fe6b093871bd40ac130e6486 (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/unix/tapcli.c')
-rw-r--r--src/vnet/unix/tapcli.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/vnet/unix/tapcli.c b/src/vnet/unix/tapcli.c
index 10a86a457e8..e61c91a45a2 100644
--- a/src/vnet/unix/tapcli.c
+++ b/src/vnet/unix/tapcli.c
@@ -1068,8 +1068,7 @@ vnet_tap_connect (vlib_main_t * vm, vnet_tap_connect_args_t * ap)
hw = vnet_get_hw_interface (tm->vnet_main, ti->hw_if_index);
hw->min_supported_packet_bytes = TAP_MTU_MIN;
hw->max_supported_packet_bytes = TAP_MTU_MAX;
- hw->max_l3_packet_bytes[VLIB_RX] = hw->max_l3_packet_bytes[VLIB_TX] =
- hw->max_supported_packet_bytes - sizeof (ethernet_header_t);
+ vnet_sw_interface_set_mtu (tm->vnet_main, hw->sw_if_index, 9000);
ti->sw_if_index = hw->sw_if_index;
if (ap->sw_if_indexp)
*(ap->sw_if_indexp) = hw->sw_if_index;