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/interface_api.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/interface_api.c')
| -rw-r--r-- | src/vnet/interface_api.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/vnet/interface_api.c b/src/vnet/interface_api.c index 9a1838fa321..e2f4d8fd130 100644 --- a/src/vnet/interface_api.c +++ b/src/vnet/interface_api.c @@ -50,6 +50,7 @@ vpe_api_main_t vpe_api_main; #define foreach_vpe_api_msg \ _(SW_INTERFACE_SET_FLAGS, sw_interface_set_flags) \ +_(HW_INTERFACE_SET_MTU, hw_interface_set_mtu) \ _(SW_INTERFACE_SET_MTU, sw_interface_set_mtu) \ _(WANT_INTERFACE_EVENTS, want_interface_events) \ _(SW_INTERFACE_DUMP, sw_interface_dump) \ @@ -96,9 +97,9 @@ vl_api_sw_interface_set_flags_t_handler (vl_api_sw_interface_set_flags_t * mp) } static void -vl_api_sw_interface_set_mtu_t_handler (vl_api_sw_interface_set_mtu_t * mp) +vl_api_hw_interface_set_mtu_t_handler (vl_api_hw_interface_set_mtu_t * mp) { - vl_api_sw_interface_set_mtu_reply_t *rmp; + vl_api_hw_interface_set_mtu_reply_t *rmp; vnet_main_t *vnm = vnet_get_main (); u32 sw_if_index = ntohl (mp->sw_if_index); u16 mtu = ntohs (mp->mtu); @@ -138,6 +139,27 @@ vl_api_sw_interface_set_mtu_t_handler (vl_api_sw_interface_set_mtu_t * mp) vnet_hw_interface_set_mtu (vnm, si->hw_if_index, mtu); BAD_SW_IF_INDEX_LABEL; + REPLY_MACRO (VL_API_HW_INTERFACE_SET_MTU_REPLY); +} + +static void +vl_api_sw_interface_set_mtu_t_handler (vl_api_sw_interface_set_mtu_t * mp) +{ + vl_api_sw_interface_set_mtu_reply_t *rmp; + vnet_main_t *vnm = vnet_get_main (); + u32 sw_if_index = ntohl (mp->sw_if_index); + int rv = 0; + int i; + u32 per_protocol_mtu[VNET_N_MTU]; + + VALIDATE_SW_IF_INDEX (mp); + + for (i = 0; i < VNET_N_MTU; i++) + per_protocol_mtu[i] = ntohl (mp->mtu[i]); + + vnet_sw_interface_set_protocol_mtu (vnm, sw_if_index, per_protocol_mtu); + + BAD_SW_IF_INDEX_LABEL; REPLY_MACRO (VL_API_SW_INTERFACE_SET_MTU_REPLY); } @@ -162,6 +184,11 @@ send_sw_interface_details (vpe_api_main_t * am, mp->link_speed = ((hi->flags & VNET_HW_INTERFACE_FLAG_SPEED_MASK) >> VNET_HW_INTERFACE_FLAG_SPEED_SHIFT); mp->link_mtu = ntohs (hi->max_packet_bytes); + mp->mtu[VNET_MTU_L3] = ntohl (swif->mtu[VNET_MTU_L3]); + mp->mtu[VNET_MTU_IP4] = ntohl (swif->mtu[VNET_MTU_IP4]); + mp->mtu[VNET_MTU_IP6] = ntohl (swif->mtu[VNET_MTU_IP6]); + mp->mtu[VNET_MTU_MPLS] = ntohl (swif->mtu[VNET_MTU_MPLS]); + mp->context = context; strncpy ((char *) mp->interface_name, |