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authorSteve Shin <jonshin@cisco.com>2016-09-07 08:25:04 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2016-09-07 19:34:56 +0000
commitbf1fa7fa397b3be95a9c83e27f18dc896a174287 (patch)
treee5d28260079d13130a21239f6ca835a108e62fda
parentf5a0e73e5316fa5ed2c5f64aec43cbb78724cb65 (diff)
Fix MTU size for the bonded interface
Configure the MTU/L3 packet size of the bonded interface as the lowest value of the slave intefaces Change-Id: I34fb4c2156e8ad3d9bf45efe332405d53f72867c Signed-off-by: Steve Shin <jonshin@cisco.com>
-rw-r--r--vnet/vnet/devices/dpdk/init.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/vnet/vnet/devices/dpdk/init.c b/vnet/vnet/devices/dpdk/init.c
index 2ecfa38481a..3de33ed1aa9 100644
--- a/vnet/vnet/devices/dpdk/init.c
+++ b/vnet/vnet/devices/dpdk/init.c
@@ -1688,6 +1688,7 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
clib_memcpy (bhi->hw_address, addr, 6);
clib_memcpy (bei->address, addr, 6);
/* Init l3 packet size allowed on bonded interface */
+ bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
bhi->max_l3_packet_bytes[VLIB_RX] =
bhi->max_l3_packet_bytes[VLIB_TX] =
ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
@@ -1713,6 +1714,17 @@ dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
vnet_get_sw_interface (vnm, sdev->vlib_sw_if_index);
shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
+
+ /* Set l3 packet size allowed as the lowest of slave */
+ if (bhi->max_l3_packet_bytes[VLIB_RX] >
+ shi->max_l3_packet_bytes[VLIB_RX])
+ bhi->max_l3_packet_bytes[VLIB_RX] =
+ bhi->max_l3_packet_bytes[VLIB_TX] =
+ shi->max_l3_packet_bytes[VLIB_RX];
+
+ /* Set max packet size allowed as the lowest of slave */
+ if (bhi->max_packet_bytes > shi->max_packet_bytes)
+ bhi->max_packet_bytes = shi->max_packet_bytes;
}
}
}