}
static clib_error_t *
-ethernet_set_mtu (vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 mtu)
+ethernet_set_max_frame_size (vnet_main_t *vnm, vnet_hw_interface_t *hi,
+ u32 frame_size)
{
ethernet_interface_t *ei =
pool_elt_at_index (ethernet_main.interfaces, hi->hw_instance);
- if (ei->cb.set_mtu)
- return ei->cb.set_mtu (vnm, hi, mtu);
+ if (ei->cb.set_max_frame_size)
+ return ei->cb.set_max_frame_size (vnm, hi, frame_size);
- return 0;
+ return vnet_error (
+ VNET_ERR_UNSUPPORTED,
+ "underlying driver doesn't support changing Max Frame Size");
}
/* *INDENT-OFF* */
.build_rewrite = ethernet_build_rewrite,
.update_adjacency = ethernet_update_adjacency,
.mac_addr_change_function = ethernet_mac_change,
- .set_mtu = ethernet_set_mtu,
+ .set_max_frame_size = ethernet_set_max_frame_size,
};
/* *INDENT-ON* */
ethernet_setup_node (vnm->vlib_main, hi->output_node_index);
- hi->min_packet_bytes = hi->min_supported_packet_bytes =
- ETHERNET_MIN_PACKET_BYTES;
- hi->max_supported_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
- hi->max_packet_bytes = em->default_mtu;
+ hi->min_frame_size = ETHERNET_MIN_PACKET_BYTES;
+ hi->frame_overhead =
+ r->frame_overhead ?
+ r->frame_overhead :
+ sizeof (ethernet_header_t) + 2 * sizeof (ethernet_vlan_header_t);
+ hi->max_frame_size = r->max_frame_size ?
+ r->max_frame_size :
+ ethernet_main.default_mtu + hi->frame_overhead;
+ ;
/* Default ethernet MTU, 9000 unless set by ethernet_config see below */
vnet_sw_interface_set_mtu (vnm, hi->sw_if_index, em->default_mtu);