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-rw-r--r--src/vnet/interface_funcs.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/vnet/interface_funcs.h b/src/vnet/interface_funcs.h
index 57e0d33b406..5434542cd7c 100644
--- a/src/vnet/interface_funcs.h
+++ b/src/vnet/interface_funcs.h
@@ -310,7 +310,7 @@ always_inline u32
vnet_hw_interface_get_mtu (vnet_main_t * vnm, u32 hw_if_index)
{
vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
- return hw->max_packet_bytes;
+ return hw->max_frame_size - hw->frame_overhead;
}
always_inline u32
@@ -430,6 +430,10 @@ clib_error_t *set_hw_interface_rx_placement (u32 hw_if_index, u32 queue_id,
/* Set tx-queue placement on the interface */
int set_hw_interface_tx_queue (u32 hw_if_index, u32 queue_id, uword *bitmap);
+/* Set the Max Frame Size on the HW interface */
+clib_error_t *vnet_hw_interface_set_max_frame_size (vnet_main_t *vnm,
+ u32 hw_if_index,
+ u32 max_frame_size);
/* Set the MTU on the HW interface */
clib_error_t *vnet_hw_interface_set_mtu (vnet_main_t *vnm, u32 hw_if_index,
u32 mtu);