virtio: fast TAP interfaces with vhost-net backend

Change-Id: Ided667356d5c6fb9648eb34685aabd6b16a598b7
Signed-off-by: Damjan Marion <damarion@cisco.com>
Signed-off-by: Steven Luong <sluong@cisco.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/src/vnet/devices/virtio/tap.h b/src/vnet/devices/virtio/tap.h
new file mode 100644
index 00000000000..58dcb5bda51
--- /dev/null
+++ b/src/vnet/devices/virtio/tap.h
@@ -0,0 +1,56 @@
+/*
+ *------------------------------------------------------------------
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *------------------------------------------------------------------
+ */
+
+#ifndef _VNET_DEVICES_VIRTIO_TAP_H_
+#define _VNET_DEVICES_VIRTIO_TAP_H_
+
+#ifndef MIN
+#define MIN(x,y) (((x)<(y))?(x):(y))
+#endif
+
+typedef struct
+{
+  u8 *name;
+  u8 *net_ns;
+  u8 hw_addr_set;
+  u8 hw_addr[6];
+  u16 rx_ring_sz;
+  u16 tx_ring_sz;
+  /* return */
+  u32 sw_if_index;
+} tap_create_if_args_t;
+
+/** TAP interface details struct */
+typedef struct
+{
+  u32 sw_if_index;
+  u8 dev_name[64];
+} tap_interface_details_t;
+
+int 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_dump_ifs (tap_interface_details_t ** out_tapids);
+
+#endif /* _VNET_DEVICES_VIRTIO_TAP_H_ */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */