netdevice.h revision 290135 
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, 2014 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: head/sys/compat/linuxkpi/common/include/linux/netdevice.h 290135 2015-10-29 08:28:39Z hselasky $
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/completion.h>
44#include <linux/device.h>
45#include <linux/workqueue.h>
46#include <linux/net.h>
47#include <linux/notifier.h>
48
49struct net {
50};
51
52extern struct net init_net;
53
54#define	MAX_ADDR_LEN		20
55
56#define	net_device	ifnet
57
58#define	dev_get_by_index(n, idx)	ifnet_byindex_ref((idx))
59#define	dev_hold(d)	if_ref((d))
60#define	dev_put(d)	if_rele((d))
61
62#define	netif_running(dev)	!!((dev)->if_drv_flags & IFF_DRV_RUNNING)
63#define	netif_oper_up(dev)	!!((dev)->if_flags & IFF_UP)
64#define	netif_carrier_ok(dev)	netif_running(dev)
65
66static inline void *
67netdev_priv(const struct net_device *dev)
68{
69	return (dev->if_softc);
70}
71
72static inline void
73_handle_ifnet_link_event(void *arg, struct ifnet *ifp, int linkstate)
74{
75	struct notifier_block *nb;
76
77	nb = arg;
78	if (linkstate == LINK_STATE_UP)
79		nb->notifier_call(nb, NETDEV_UP, ifp);
80	else
81		nb->notifier_call(nb, NETDEV_DOWN, ifp);
82}
83
84static inline void
85_handle_ifnet_arrival_event(void *arg, struct ifnet *ifp)
86{
87	struct notifier_block *nb;
88
89	nb = arg;
90	nb->notifier_call(nb, NETDEV_REGISTER, ifp);
91}
92
93static inline void
94_handle_ifnet_departure_event(void *arg, struct ifnet *ifp)
95{
96	struct notifier_block *nb;
97
98	nb = arg;
99	nb->notifier_call(nb, NETDEV_UNREGISTER, ifp);
100}
101
102static inline void
103_handle_iflladdr_event(void *arg, struct ifnet *ifp)
104{
105	struct notifier_block *nb;
106
107	nb = arg;
108	nb->notifier_call(nb, NETDEV_CHANGEADDR, ifp);
109}
110
111static inline void
112_handle_ifaddr_event(void *arg, struct ifnet *ifp)
113{
114	struct notifier_block *nb;
115
116	nb = arg;
117	nb->notifier_call(nb, NETDEV_CHANGEIFADDR, ifp);
118}
119
120static inline int
121register_netdevice_notifier(struct notifier_block *nb)
122{
123
124	nb->tags[NETDEV_UP] = EVENTHANDLER_REGISTER(
125	    ifnet_link_event, _handle_ifnet_link_event, nb, 0);
126	nb->tags[NETDEV_REGISTER] = EVENTHANDLER_REGISTER(
127	    ifnet_arrival_event, _handle_ifnet_arrival_event, nb, 0);
128	nb->tags[NETDEV_UNREGISTER] = EVENTHANDLER_REGISTER(
129	    ifnet_departure_event, _handle_ifnet_departure_event, nb, 0);
130	nb->tags[NETDEV_CHANGEADDR] = EVENTHANDLER_REGISTER(
131	    iflladdr_event, _handle_iflladdr_event, nb, 0);
132
133	return (0);
134}
135
136static inline int
137register_inetaddr_notifier(struct notifier_block *nb)
138{
139
140        nb->tags[NETDEV_CHANGEIFADDR] = EVENTHANDLER_REGISTER(
141            ifaddr_event, _handle_ifaddr_event, nb, 0);
142        return (0);
143}
144
145static inline int
146unregister_netdevice_notifier(struct notifier_block *nb)
147{
148
149        EVENTHANDLER_DEREGISTER(ifnet_link_event, nb->tags[NETDEV_UP]);
150        EVENTHANDLER_DEREGISTER(ifnet_arrival_event, nb->tags[NETDEV_REGISTER]);
151        EVENTHANDLER_DEREGISTER(ifnet_departure_event,
152	    nb->tags[NETDEV_UNREGISTER]);
153        EVENTHANDLER_DEREGISTER(iflladdr_event,
154            nb->tags[NETDEV_CHANGEADDR]);
155
156	return (0);
157}
158
159static inline int
160unregister_inetaddr_notifier(struct notifier_block *nb)
161{
162
163        EVENTHANDLER_DEREGISTER(ifaddr_event,
164            nb->tags[NETDEV_CHANGEIFADDR]);
165
166        return (0);
167}
168
169
170#define	rtnl_lock()
171#define	rtnl_unlock()
172
173static inline int
174dev_mc_delete(struct net_device *dev, void *addr, int alen, int all)
175{
176	struct sockaddr_dl sdl;
177
178	if (alen > sizeof(sdl.sdl_data))
179		return (-EINVAL);
180	memset(&sdl, 0, sizeof(sdl));
181	sdl.sdl_len = sizeof(sdl);
182	sdl.sdl_family = AF_LINK;
183	sdl.sdl_alen = alen;
184	memcpy(&sdl.sdl_data, addr, alen);
185
186	return -if_delmulti(dev, (struct sockaddr *)&sdl);
187}
188
189static inline int
190dev_mc_add(struct net_device *dev, void *addr, int alen, int newonly)
191{
192	struct sockaddr_dl sdl;
193
194	if (alen > sizeof(sdl.sdl_data))
195		return (-EINVAL);
196	memset(&sdl, 0, sizeof(sdl));
197	sdl.sdl_len = sizeof(sdl);
198	sdl.sdl_family = AF_LINK;
199	sdl.sdl_alen = alen;
200	memcpy(&sdl.sdl_data, addr, alen);
201
202	return -if_addmulti(dev, (struct sockaddr *)&sdl, NULL);
203}
204
205#endif	/* _LINUX_NETDEVICE_H_ */
206