1/*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013-2019 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice unmodified, this list of conditions, and the following
13 *    disclaimer.
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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31#ifndef	_LINUX_NETDEVICE_H_
32#define	_LINUX_NETDEVICE_H_
33
34#include <linux/types.h>
35
36#include <sys/socket.h>
37
38#include <net/if_types.h>
39#include <net/if.h>
40#include <net/if_var.h>
41#include <net/if_dl.h>
42
43#include <linux/list.h>
44#include <linux/completion.h>
45#include <linux/device.h>
46#include <linux/workqueue.h>
47#include <linux/net.h>
48#include <linux/notifier.h>
49
50#ifdef VIMAGE
51#define	init_net *vnet0
52#else
53#define	init_net *((struct vnet *)0)
54#endif
55
56#define	MAX_ADDR_LEN		20
57
58#define	net_device	ifnet
59
60static inline struct ifnet *
61dev_get_by_index(struct vnet *vnet, int if_index)
62{
63	struct epoch_tracker et;
64	struct ifnet *retval;
65
66	NET_EPOCH_ENTER(et);
67	CURVNET_SET(vnet);
68	retval = ifnet_byindex_ref(if_index);
69	CURVNET_RESTORE();
70	NET_EPOCH_EXIT(et);
71
72	return (retval);
73}
74
75#define	dev_hold(d)	if_ref(d)
76#define	dev_put(d)	if_rele(d)
77#define	dev_net(d)	((d)->if_vnet)
78
79#define	net_eq(a,b)	((a) == (b))
80
81#define	netif_running(dev)	!!((dev)->if_drv_flags & IFF_DRV_RUNNING)
82#define	netif_oper_up(dev)	!!((dev)->if_flags & IFF_UP)
83#define	netif_carrier_ok(dev)	((dev)->if_link_state == LINK_STATE_UP)
84
85static inline void *
86netdev_priv(const struct net_device *dev)
87{
88	return (dev->if_softc);
89}
90
91static inline struct net_device *
92netdev_notifier_info_to_dev(void *ifp)
93{
94	return (ifp);
95}
96
97int	register_netdevice_notifier(struct notifier_block *);
98int	register_inetaddr_notifier(struct notifier_block *);
99int	unregister_netdevice_notifier(struct notifier_block *);
100int	unregister_inetaddr_notifier(struct notifier_block *);
101
102#define	rtnl_lock()
103#define	rtnl_unlock()
104
105static inline int
106dev_mc_delete(struct net_device *dev, void *addr, int alen, int all)
107{
108	struct sockaddr_dl sdl;
109
110	if (alen > sizeof(sdl.sdl_data))
111		return (-EINVAL);
112	memset(&sdl, 0, sizeof(sdl));
113	sdl.sdl_len = sizeof(sdl);
114	sdl.sdl_family = AF_LINK;
115	sdl.sdl_alen = alen;
116	memcpy(&sdl.sdl_data, addr, alen);
117
118	return -if_delmulti(dev, (struct sockaddr *)&sdl);
119}
120
121static inline int
122dev_mc_del(struct net_device *dev, void *addr)
123{
124	return (dev_mc_delete(dev, addr, 6, 0));
125}
126
127static inline int
128dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly)
129{
130	struct sockaddr_dl sdl;
131
132	if (alen > sizeof(sdl.sdl_data))
133		return (-EINVAL);
134	memset(&sdl, 0, sizeof(sdl));
135	sdl.sdl_len = sizeof(sdl);
136	sdl.sdl_family = AF_LINK;
137	sdl.sdl_alen = alen;
138	memcpy(&sdl.sdl_data, addr, alen);
139
140	return -if_addmulti(dev, (struct sockaddr *)&sdl, NULL);
141}
142
143#endif	/* _LINUX_NETDEVICE_H_ */
144