From d723161e038d00e59766aa67a6a0dcc350227e4b Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Thu, 7 Jun 2018 10:17:57 +0200 Subject: 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 --- src/vnet/sctp/sctp.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'src/vnet/sctp/sctp.c') diff --git a/src/vnet/sctp/sctp.c b/src/vnet/sctp/sctp.c index 6e2dccc552e..ffa86343b47 100644 --- a/src/vnet/sctp/sctp.c +++ b/src/vnet/sctp/sctp.c @@ -43,8 +43,12 @@ sctp_connection_bind (u32 session_index, transport_endpoint_t * tep) ip_copy (&listener->sub_conn[SCTP_PRIMARY_PATH_IDX].connection.lcl_ip, &tep->ip, tep->is_ip4); - listener->sub_conn[SCTP_PRIMARY_PATH_IDX].PMTU = - vnet_sw_interface_get_mtu (vnet_get_main (), tep->sw_if_index, VLIB_TX); + u32 mtu = tep->is_ip4 ? vnet_sw_interface_get_mtu (vnet_get_main (), + tep->sw_if_index, + VNET_MTU_IP4) : + vnet_sw_interface_get_mtu (vnet_get_main (), tep->sw_if_index, + VNET_MTU_IP6); + listener->sub_conn[SCTP_PRIMARY_PATH_IDX].PMTU = mtu; listener->sub_conn[SCTP_PRIMARY_PATH_IDX].connection.is_ip4 = tep->is_ip4; listener->sub_conn[SCTP_PRIMARY_PATH_IDX].connection.proto = TRANSPORT_PROTO_SCTP; @@ -480,8 +484,12 @@ sctp_connection_open (transport_endpoint_t * rmt) clib_spinlock_lock_if_init (&tm->half_open_lock); sctp_conn = sctp_half_open_connection_new (thread_id); - sctp_conn->sub_conn[idx].PMTU = - vnet_sw_interface_get_mtu (vnet_get_main (), rmt->sw_if_index, VLIB_TX); + u32 mtu = rmt->is_ip4 ? vnet_sw_interface_get_mtu (vnet_get_main (), + rmt->sw_if_index, + VNET_MTU_IP4) : + vnet_sw_interface_get_mtu (vnet_get_main (), rmt->sw_if_index, + VNET_MTU_IP6); + sctp_conn->sub_conn[idx].PMTU = mtu; transport_connection_t *trans_conn = &sctp_conn->sub_conn[idx].connection; ip_copy (&trans_conn->rmt_ip, &rmt->ip, rmt->is_ip4); -- cgit 1.2.3-korg