ena_netmap.h revision 368013 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * $FreeBSD: stable/11/sys/dev/ena/ena_netmap.h 368013 2020-11-25 09:37:17Z mw $
31 *
32 */
33
34#ifndef _ENA_NETMAP_H_
35#define _ENA_NETMAP_H_
36
37/* Undef (un)likely as they are defined in netmap_kern.h */
38#ifdef likely
39#undef likely
40#endif /* likely */
41#ifdef unlikely
42#undef unlikely
43#endif /* unlikely */
44
45#include <net/netmap.h>
46#include <sys/selinfo.h>
47#include <dev/netmap/netmap_kern.h>
48
49int	ena_netmap_attach(struct ena_adapter *adapter);
50int	ena_netmap_alloc_rx_slot(struct ena_adapter *adapter,
51    struct ena_ring *rx_ring, struct ena_rx_buffer *rx_info);
52void	ena_netmap_free_rx_slot(struct ena_adapter *adapter,
53    struct ena_ring *rx_ring, struct ena_rx_buffer *rx_info);
54bool	ena_rx_ring_in_netmap(struct ena_adapter *adapter, int qid);
55bool	ena_tx_ring_in_netmap(struct ena_adapter *adapter, int qid);
56void	ena_netmap_reset_rx_ring(struct ena_adapter *adapter, int qid);
57void	ena_netmap_reset_tx_ring(struct ena_adapter *adapter, int qid);
58void	ena_netmap_unload(struct ena_adapter *adapter, bus_dmamap_t map);
59
60#endif /* _ENA_NETMAP_H_ */
61