1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*********************************************************
* Copyright (C) 2005 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*********************************************************/
/*
* net_compat.h:
* This file contains wrapper macros that abstract out
* the differences between FreeBSD 4.x, 5.x and 6.x in
* network related kernel calls used in if_vxn.c.
*/
#ifndef _VXN_NET_COMPAT_H_
#define _VXN_NET_COMPAT_H_
#if __FreeBSD_version < 500009
#define VXN_ETHER_IFATTACH(ifp, llc) (ether_ifattach(ifp, ETHER_BPF_SUPPORTED))
#define VXN_ETHER_IFDETACH(ifp) (ether_ifdetach(ifp, ETHER_BPF_SUPPORTED))
#else /* >= 500009 */
#define VXN_ETHER_IFATTACH(ifp, llc) (ether_ifattach(ifp, llc))
#define VXN_ETHER_IFDETACH(ifp) (ether_ifdetach(ifp))
#endif /* 500009 */
#if __FreeBSD_version < 500016
#define VXN_IFMULTI_FIRST LIST_FIRST
#define VXN_IFMULTI_NEXT LIST_NEXT
#else /* >= 500016 */
#define VXN_IFMULTI_FIRST TAILQ_FIRST
#define VXN_IFMULTI_NEXT TAILQ_NEXT
#endif /* 500016 */
#if __FreeBSD_version < 500043
/*
* This code used to be in our if_vxn.c; it is now included in
* FreeBSD's ether_input().
*/
#define VXN_ETHER_INPUT(ifp, m) do { \
struct ether_header *eh = mtod((m), struct ether_header *); \
m_adj(m, sizeof(struct ether_header)); \
ether_input((ifp), eh, (m)); \
} while (0)
#define VXN_BPF_MTAP(ifp, m) do { \
if ((ifp)->if_bpf) \
bpf_mtap((ifp), (m)); \
} while (0)
#else /* >= 500043 */
#define VXN_ETHER_INPUT(ifp, m) ((*(ifp)->if_input)(ifp, m))
#define VXN_BPF_MTAP(ifp, m) BPF_MTAP(ifp, m)
#endif /* 500043 */
#if __FreeBSD_version < 501113
#define VXN_IF_UNIT(ifp) ((ifp)->if_unit)
#define VXN_IF_INITNAME(ifp, name, unit) do { \
(ifp)->if_name = (char *)(name); \
(ifp)->if_unit = (unit); \
} while (0)
#else /* >= 501113 */
#define VXN_IF_UNIT(ifp) ((ifp)->if_dunit)
#define VXN_IF_INITNAME(ifp, name, unit) (if_initname(ifp, name, unit))
#endif /* 501113 */
/*
* In FreeBSD 6.x, ifnet struct handling has changed.
*
* On older releases, each NIC driver's softc structure
* started with an ifnet struct, nested within an arpcom.
*
* struct vxn_softc {
* struct arpcom {
* struct ifnet {
* void *if_softc;
* ...
* } ac_if;
* u_char ac_enaddr[6];
* ...
* } <arpcom>;
* ...
* };
*
* In FreeBSD 6.x, the ifnet struct is now a pointer
* returned from if_alloc() and if_alloc() allocates
* space for if_l2com.
*
* Accessing the link layer address via arpcom's ac_enaddr was deprecated as
* of sys/net/if_var.h:1.98, and drivers are to instead get/set said address
* through the embedded ifnet structure. So with FreeBSD 6 and above, we
* instead define vxn_softc as follows and rely on FreeBSD's macro glue for
* easy access to the LL-address.
*
* struct vxn_softc {
* struct ifnet *vxn_ifp;
* ...
* };
*/
#if __FreeBSD_version < 600000 /* Pre-FreeBSD 6.0-RELEASE */
#define VXN_NEEDARPCOM
#define VXN_IF_ALLOC(softc) (&(softc)->arpcom.ac_if)
#define VXN_IF_FREE(softc)
#define VXN_SC2IFP(softc) (&(softc)->arpcom.ac_if)
#define VXN_PCIR_MAPS PCIR_MAPS
#define VXN_IFF_RUNNING IFF_RUNNING
#define VXN_IFF_OACTIVE IFF_OACTIVE
#define VXN_SET_IF_DRV_FLAGS(ifp, flags) \
((ifp)->if_flags |= (flags))
#define VXN_CLR_IF_DRV_FLAGS(ifp, flags) \
((ifp)->if_flags &= ~(flags))
#define VXN_GET_IF_DRV_FLAGS(ifp) \
((ifp)->if_flags)
#else /* FreeBSD 6.x+ */
#define VXN_IF_ALLOC(softc) ((softc)->vxn_ifp = if_alloc(IFT_ETHER))
#define VXN_IF_FREE(softc) if_free((softc)->vxn_ifp)
#define VXN_SC2IFP(softc) ((softc)->vxn_ifp)
#define VXN_PCIR_MAPS PCIR_BARS
#define VXN_IFF_RUNNING IFF_DRV_RUNNING
#define VXN_IFF_OACTIVE IFF_DRV_OACTIVE
#define VXN_SET_IF_DRV_FLAGS(ifp, flags) \
((ifp)->if_drv_flags |= (flags))
#define VXN_CLR_IF_DRV_FLAGS(ifp, flags) \
((ifp)->if_drv_flags &= ~(flags))
#define VXN_GET_IF_DRV_FLAGS(ifp) \
((ifp)->if_drv_flags)
#endif
#ifdef VXN_MPSAFE
# define VXN_MTX_INIT(mtx, name, type, opts) \
mtx_init(mtx, name, type, opts)
# define VXN_MTX_DESTROY(mtx) mtx_destroy(mtx)
# define VXN_LOCK(_sc) mtx_lock(&(_sc)->vxn_mtx)
# define VXN_UNLOCK(_sc) mtx_unlock(&(_sc)->vxn_mtx)
# define VXN_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vxn_mtx, MA_OWNED)
# define VXN_IFQ_IS_EMPTY(_ifq) IFQ_DRV_IS_EMPTY((_ifq))
#else
# define VXN_MTX_INIT(mtx, name, type, opts)
# define VXN_MTX_DESTROY(mtx)
# define VXN_LOCK(_sc)
# define VXN_UNLOCK(_sc)
# define VXN_LOCK_ASSERT(_sc)
# define VXN_IFQ_IS_EMPTY(_ifq) ((_ifq)->ifq_head == NULL)
#endif
/*
* sys/net/if_var.h ver 1.100 introduced struct ifnet::if_addr_mtx to protect
* address lists. We're particularly concerned with the list of multicast
* addresses, if_multiaddrs, as our driver traverses this list during mcast
* filter setup. (MFC'd for RELENG_5_5.)
*/
#if __FreeBSD_version < 505000
# define VXN_IF_ADDR_LOCK(_ifp)
# define VXN_IF_ADDR_UNLOCK(_ifp)
#else
# define VXN_IF_ADDR_LOCK(_ifp) IF_ADDR_LOCK((_ifp))
# define VXN_IF_ADDR_UNLOCK(_ifp) IF_ADDR_UNLOCK((_ifp))
#endif
#endif /* _VXN_NET_COMPAT_H_ */
|
