xref: /freebsd/sys/compat/linuxkpi/common/include/linux/netdevice.h (revision 4657548d18877f64bd02be888406aa5b02bf9b06)
1 /*-
2  * Copyright (c) 2010 Isilon Systems, Inc.
3  * Copyright (c) 2010 iX Systems, Inc.
4  * Copyright (c) 2010 Panasas, Inc.
5  * Copyright (c) 2013-2017 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 
60 static inline struct ifnet *
61 dev_get_by_index(struct vnet *vnet, int if_index)
62 {
63 	struct ifnet *retval;
64 
65 	CURVNET_SET(vnet);
66 	retval = ifnet_byindex_ref(if_index);
67 	CURVNET_RESTORE();
68 
69 	return (retval);
70 }
71 
72 #define	dev_hold(d)	if_ref(d)
73 #define	dev_put(d)	if_rele(d)
74 #define	dev_net(d)	((d)->if_vnet)
75 
76 #define	net_eq(a,b)	((a) == (b))
77 
78 #define	netif_running(dev)	!!((dev)->if_drv_flags & IFF_DRV_RUNNING)
79 #define	netif_oper_up(dev)	!!((dev)->if_flags & IFF_UP)
80 #define	netif_carrier_ok(dev)	netif_running(dev)
81 
82 static inline void *
83 netdev_priv(const struct net_device *dev)
84 {
85 	return (dev->if_softc);
86 }
87 
88 static inline struct net_device *
89 netdev_notifier_info_to_dev(void *ifp)
90 {
91 	return (ifp);
92 }
93 
94 int	register_netdevice_notifier(struct notifier_block *);
95 int	register_inetaddr_notifier(struct notifier_block *);
96 int	unregister_netdevice_notifier(struct notifier_block *);
97 int	unregister_inetaddr_notifier(struct notifier_block *);
98 
99 #define	rtnl_lock()
100 #define	rtnl_unlock()
101 
102 static inline int
103 dev_mc_delete(struct net_device *dev, void *addr, int alen, int all)
104 {
105 	struct sockaddr_dl sdl;
106 
107 	if (alen > sizeof(sdl.sdl_data))
108 		return (-EINVAL);
109 	memset(&sdl, 0, sizeof(sdl));
110 	sdl.sdl_len = sizeof(sdl);
111 	sdl.sdl_family = AF_LINK;
112 	sdl.sdl_alen = alen;
113 	memcpy(&sdl.sdl_data, addr, alen);
114 
115 	return -if_delmulti(dev, (struct sockaddr *)&sdl);
116 }
117 
118 static inline int
119 dev_mc_del(struct net_device *dev, void *addr)
120 {
121 	return (dev_mc_delete(dev, addr, 6, 0));
122 }
123 
124 static inline int
125 dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly)
126 {
127 	struct sockaddr_dl sdl;
128 
129 	if (alen > sizeof(sdl.sdl_data))
130 		return (-EINVAL);
131 	memset(&sdl, 0, sizeof(sdl));
132 	sdl.sdl_len = sizeof(sdl);
133 	sdl.sdl_family = AF_LINK;
134 	sdl.sdl_alen = alen;
135 	memcpy(&sdl.sdl_data, addr, alen);
136 
137 	return -if_addmulti(dev, (struct sockaddr *)&sdl, NULL);
138 }
139 
140 #endif	/* _LINUX_NETDEVICE_H_ */
141