tap: add support to configure tap interface host MTU size

[vpp.git] / src / vnet / devices / tap / tap.h

diff --git a/src/vnet/devices/tap/tap.h b/src/vnet/devices/tap/tap.h
index 19dc88d..45ff1d9 100644 (file)
--- a/src/vnet/devices/tap/tap.h
+++ b/src/vnet/devices/tap/tap.h
@@ -30,6 +30,7 @@ typedef struct
   u16 rx_ring_sz;
   u16 tx_ring_sz;
   u32 tap_flags;
+#define TAP_FLAG_GSO (1 << 0)
   u8 *host_namespace;
   u8 *host_if_name;
   u8 host_mac_addr[6];
@@ -42,6 +43,8 @@ typedef struct
   u8 host_ip6_prefix_len;
   ip6_address_t host_ip6_gw;
   u8 host_ip6_gw_set;
+  u8 host_mtu_set;
+  u32 host_mtu_size;
   /* return */
   u32 sw_if_index;
   int rv;
@@ -65,6 +68,7 @@ typedef struct
   u8 host_ip4_prefix_len;
   u8 host_ip6_addr[16];
   u8 host_ip6_prefix_len;
+  u32 host_mtu_size;
 } tap_interface_details_t;
 
 typedef struct
@@ -74,10 +78,15 @@ typedef struct
 
   /* bit-map of in-use IDs */
   uword *tap_ids;
+
+  /* host mtu size, configurable through startup.conf */
+  int host_mtu_size;
 } tap_main_t;
 
 void tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args);
 int tap_delete_if (vlib_main_t * vm, u32 sw_if_index);
+int tap_gso_enable_disable (vlib_main_t * vm, u32 sw_if_index,
+                           int enable_disable);
 int tap_dump_ifs (tap_interface_details_t ** out_tapids);
 
 #endif /* _VNET_DEVICES_VIRTIO_TAP_H_ */