+++ /dev/null
-/*
- *------------------------------------------------------------------
- * Copyright (c) 2016 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.
- *------------------------------------------------------------------
- */
-/*
- * Copyright (C) 2011-2014 Universita` di Pisa. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <vppinfra/lock.h>
-
-typedef struct
-{
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
- clib_spinlock_t lockp;
- u8 *host_if_name;
- uword if_index;
- u32 hw_if_index;
- u32 sw_if_index;
- u32 clib_file_index;
-
- u32 per_interface_next_index;
- u8 is_admin_up;
-
- /* netmap */
- struct nmreq *req;
- u16 mem_region;
- int fd;
- struct netmap_if *nifp;
- u16 first_tx_ring;
- u16 last_tx_ring;
- u16 first_rx_ring;
- u16 last_rx_ring;
-
-} netmap_if_t;
-
-typedef struct
-{
- char *mem;
- u32 region_size;
- int refcnt;
-} netmap_mem_region_t;
-
-typedef struct
-{
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
- netmap_if_t *interfaces;
-
- /* bitmap of pending rx interfaces */
- uword *pending_input_bitmap;
-
- /* rx buffer cache */
- u32 **rx_buffers;
-
- /* hash of host interface names */
- mhash_t if_index_by_host_if_name;
-
- /* vector of memory regions */
- netmap_mem_region_t *mem_regions;
-
- /* first cpu index */
- u32 input_cpu_first_index;
-
- /* total cpu count */
- u32 input_cpu_count;
-} netmap_main_t;
-
-extern netmap_main_t netmap_main;
-extern vnet_device_class_t netmap_device_class;
-extern vlib_node_registration_t netmap_input_node;
-
-int netmap_create_if (vlib_main_t * vm, u8 * host_if_name, u8 * hw_addr_set,
- u8 is_pipe, u8 is_master, u32 * sw_if_index);
-int netmap_delete_if (vlib_main_t * vm, u8 * host_if_name);
-
-
-/* Macros and helper functions from sys/net/netmap_user.h */
-
-#ifdef _NET_NETMAP_H_
-
-#define _NETMAP_OFFSET(type, ptr, offset) \
- ((type)(void *)((char *)(ptr) + (offset)))
-
-#define NETMAP_IF(_base, _ofs) _NETMAP_OFFSET(struct netmap_if *, _base, _ofs)
-
-#define NETMAP_TXRING(nifp, index) _NETMAP_OFFSET(struct netmap_ring *, \
- nifp, (nifp)->ring_ofs[index] )
-
-#define NETMAP_RXRING(nifp, index) _NETMAP_OFFSET(struct netmap_ring *, \
- nifp, (nifp)->ring_ofs[index + (nifp)->ni_tx_rings + 1] )
-
-#define NETMAP_BUF(ring, index) \
- ((char *)(ring) + (ring)->buf_ofs + ((index)*(ring)->nr_buf_size))
-
-#define NETMAP_BUF_IDX(ring, buf) \
- ( ((char *)(buf) - ((char *)(ring) + (ring)->buf_ofs) ) / \
- (ring)->nr_buf_size )
-
-static inline uint32_t
-nm_ring_next (struct netmap_ring *ring, uint32_t i)
-{
- return (PREDICT_FALSE (i + 1 == ring->num_slots) ? 0 : i + 1);
-}
-
-
-/*
- * Return 1 if we have pending transmissions in the tx ring.
- * When everything is complete ring->head = ring->tail + 1 (modulo ring size)
- */
-static inline int
-nm_tx_pending (struct netmap_ring *ring)
-{
- return nm_ring_next (ring, ring->tail) != ring->head;
-}
-
-static inline uint32_t
-nm_ring_space (struct netmap_ring *ring)
-{
- int ret = ring->tail - ring->cur;
- if (ret < 0)
- ret += ring->num_slots;
- return ret;
-}
-#endif
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / blobdiff