This source file includes following definitions.
- atm_sk
- ATM_SD
- sk_atm
- atm_account_tx
- atm_force_charge
- atm_return
- atm_may_send
- atm_dev_hold
- atm_dev_put
1
2
3 #ifndef LINUX_ATMDEV_H
4 #define LINUX_ATMDEV_H
5
6
7 #include <linux/wait.h>
8 #include <linux/time.h>
9 #include <linux/net.h>
10 #include <linux/bug.h>
11 #include <linux/skbuff.h>
12 #include <linux/uio.h>
13 #include <net/sock.h>
14 #include <linux/atomic.h>
15 #include <linux/refcount.h>
16 #include <uapi/linux/atmdev.h>
17
18 #ifdef CONFIG_PROC_FS
19 #include <linux/proc_fs.h>
20
21 extern struct proc_dir_entry *atm_proc_root;
22 #endif
23
24 #ifdef CONFIG_COMPAT
25 #include <linux/compat.h>
26 struct compat_atm_iobuf {
27 int length;
28 compat_uptr_t buffer;
29 };
30 #endif
31
32 struct k_atm_aal_stats {
33 #define __HANDLE_ITEM(i) atomic_t i
34 __AAL_STAT_ITEMS
35 #undef __HANDLE_ITEM
36 };
37
38
39 struct k_atm_dev_stats {
40 struct k_atm_aal_stats aal0;
41 struct k_atm_aal_stats aal34;
42 struct k_atm_aal_stats aal5;
43 };
44
45 struct device;
46
47 enum {
48 ATM_VF_ADDR,
49
50 ATM_VF_READY,
51
52 ATM_VF_PARTIAL,
53
54 ATM_VF_REGIS,
55
56 ATM_VF_BOUND,
57
58 ATM_VF_RELEASED,
59
60 ATM_VF_HASQOS,
61 ATM_VF_LISTEN,
62 ATM_VF_META,
63
64
65 ATM_VF_SESSION,
66 ATM_VF_HASSAP,
67 ATM_VF_CLOSE,
68 ATM_VF_WAITING,
69 ATM_VF_IS_CLIP,
70 };
71
72
73 #define ATM_VF2VS(flags) \
74 (test_bit(ATM_VF_READY,&(flags)) ? ATM_VS_CONNECTED : \
75 test_bit(ATM_VF_RELEASED,&(flags)) ? ATM_VS_CLOSING : \
76 test_bit(ATM_VF_LISTEN,&(flags)) ? ATM_VS_LISTEN : \
77 test_bit(ATM_VF_REGIS,&(flags)) ? ATM_VS_INUSE : \
78 test_bit(ATM_VF_BOUND,&(flags)) ? ATM_VS_BOUND : ATM_VS_IDLE)
79
80
81 enum {
82 ATM_DF_REMOVED,
83 };
84
85
86 #define ATM_PHY_SIG_LOST 0
87 #define ATM_PHY_SIG_UNKNOWN 1
88 #define ATM_PHY_SIG_FOUND 2
89
90 #define ATM_ATMOPT_CLP 1
91
92 struct atm_vcc {
93
94 struct sock sk;
95 unsigned long flags;
96 short vpi;
97
98 int vci;
99 unsigned long aal_options;
100 unsigned long atm_options;
101 struct atm_dev *dev;
102 struct atm_qos qos;
103 struct atm_sap sap;
104 void (*release_cb)(struct atm_vcc *vcc);
105 void (*push)(struct atm_vcc *vcc,struct sk_buff *skb);
106 void (*pop)(struct atm_vcc *vcc,struct sk_buff *skb);
107 int (*push_oam)(struct atm_vcc *vcc,void *cell);
108 int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
109 void *dev_data;
110 void *proto_data;
111 struct k_atm_aal_stats *stats;
112 struct module *owner;
113
114 short itf;
115 struct sockaddr_atmsvc local;
116 struct sockaddr_atmsvc remote;
117
118 struct atm_vcc *session;
119
120 void *user_back;
121
122
123 };
124
125 static inline struct atm_vcc *atm_sk(struct sock *sk)
126 {
127 return (struct atm_vcc *)sk;
128 }
129
130 static inline struct atm_vcc *ATM_SD(struct socket *sock)
131 {
132 return atm_sk(sock->sk);
133 }
134
135 static inline struct sock *sk_atm(struct atm_vcc *vcc)
136 {
137 return (struct sock *)vcc;
138 }
139
140 struct atm_dev_addr {
141 struct sockaddr_atmsvc addr;
142 struct list_head entry;
143 };
144
145 enum atm_addr_type_t { ATM_ADDR_LOCAL, ATM_ADDR_LECS };
146
147 struct atm_dev {
148 const struct atmdev_ops *ops;
149 const struct atmphy_ops *phy;
150
151 const char *type;
152 int number;
153 void *dev_data;
154 void *phy_data;
155 unsigned long flags;
156 struct list_head local;
157 struct list_head lecs;
158 unsigned char esi[ESI_LEN];
159 struct atm_cirange ci_range;
160 struct k_atm_dev_stats stats;
161 char signal;
162 int link_rate;
163 refcount_t refcnt;
164 spinlock_t lock;
165 #ifdef CONFIG_PROC_FS
166 struct proc_dir_entry *proc_entry;
167 char *proc_name;
168 #endif
169 struct device class_dev;
170 struct list_head dev_list;
171 };
172
173
174
175
176 #define ATM_OF_IMMED 1
177 #define ATM_OF_INRATE 2
178
179
180
181
182
183
184 struct atmdev_ops {
185 void (*dev_close)(struct atm_dev *dev);
186 int (*open)(struct atm_vcc *vcc);
187 void (*close)(struct atm_vcc *vcc);
188 int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void __user *arg);
189 #ifdef CONFIG_COMPAT
190 int (*compat_ioctl)(struct atm_dev *dev,unsigned int cmd,
191 void __user *arg);
192 #endif
193 int (*getsockopt)(struct atm_vcc *vcc,int level,int optname,
194 void __user *optval,int optlen);
195 int (*setsockopt)(struct atm_vcc *vcc,int level,int optname,
196 void __user *optval,unsigned int optlen);
197 int (*send)(struct atm_vcc *vcc,struct sk_buff *skb);
198 int (*send_oam)(struct atm_vcc *vcc,void *cell,int flags);
199 void (*phy_put)(struct atm_dev *dev,unsigned char value,
200 unsigned long addr);
201 unsigned char (*phy_get)(struct atm_dev *dev,unsigned long addr);
202 int (*change_qos)(struct atm_vcc *vcc,struct atm_qos *qos,int flags);
203 int (*proc_read)(struct atm_dev *dev,loff_t *pos,char *page);
204 struct module *owner;
205 };
206
207 struct atmphy_ops {
208 int (*start)(struct atm_dev *dev);
209 int (*ioctl)(struct atm_dev *dev,unsigned int cmd,void __user *arg);
210 void (*interrupt)(struct atm_dev *dev);
211 int (*stop)(struct atm_dev *dev);
212 };
213
214 struct atm_skb_data {
215 struct atm_vcc *vcc;
216 unsigned long atm_options;
217 unsigned int acct_truesize;
218 };
219
220 #define VCC_HTABLE_SIZE 32
221
222 extern struct hlist_head vcc_hash[VCC_HTABLE_SIZE];
223 extern rwlock_t vcc_sklist_lock;
224
225 #define ATM_SKB(skb) (((struct atm_skb_data *) (skb)->cb))
226
227 struct atm_dev *atm_dev_register(const char *type, struct device *parent,
228 const struct atmdev_ops *ops,
229 int number,
230 unsigned long *flags);
231 struct atm_dev *atm_dev_lookup(int number);
232 void atm_dev_deregister(struct atm_dev *dev);
233
234
235
236
237
238
239 void atm_dev_signal_change(struct atm_dev *dev, char signal);
240
241 void vcc_insert_socket(struct sock *sk);
242
243 void atm_dev_release_vccs(struct atm_dev *dev);
244
245 static inline void atm_account_tx(struct atm_vcc *vcc, struct sk_buff *skb)
246 {
247
248
249
250
251
252
253
254
255 refcount_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc);
256 ATM_SKB(skb)->acct_truesize = skb->truesize;
257 ATM_SKB(skb)->atm_options = vcc->atm_options;
258 }
259
260 static inline void atm_force_charge(struct atm_vcc *vcc,int truesize)
261 {
262 atomic_add(truesize, &sk_atm(vcc)->sk_rmem_alloc);
263 }
264
265
266 static inline void atm_return(struct atm_vcc *vcc,int truesize)
267 {
268 atomic_sub(truesize, &sk_atm(vcc)->sk_rmem_alloc);
269 }
270
271
272 static inline int atm_may_send(struct atm_vcc *vcc,unsigned int size)
273 {
274 return (size + refcount_read(&sk_atm(vcc)->sk_wmem_alloc)) <
275 sk_atm(vcc)->sk_sndbuf;
276 }
277
278
279 static inline void atm_dev_hold(struct atm_dev *dev)
280 {
281 refcount_inc(&dev->refcnt);
282 }
283
284
285 static inline void atm_dev_put(struct atm_dev *dev)
286 {
287 if (refcount_dec_and_test(&dev->refcnt)) {
288 BUG_ON(!test_bit(ATM_DF_REMOVED, &dev->flags));
289 if (dev->ops->dev_close)
290 dev->ops->dev_close(dev);
291 put_device(&dev->class_dev);
292 }
293 }
294
295
296 int atm_charge(struct atm_vcc *vcc,int truesize);
297 struct sk_buff *atm_alloc_charge(struct atm_vcc *vcc,int pdu_size,
298 gfp_t gfp_flags);
299 int atm_pcr_goal(const struct atm_trafprm *tp);
300
301 void vcc_release_async(struct atm_vcc *vcc, int reply);
302
303 struct atm_ioctl {
304 struct module *owner;
305
306
307 int (*ioctl)(struct socket *, unsigned int cmd, unsigned long arg);
308 struct list_head list;
309 };
310
311
312
313
314
315
316
317
318 void register_atm_ioctl(struct atm_ioctl *);
319
320
321
322
323 void deregister_atm_ioctl(struct atm_ioctl *);
324
325
326
327
328
329
330
331 int register_atmdevice_notifier(struct notifier_block *nb);
332 void unregister_atmdevice_notifier(struct notifier_block *nb);
333
334 #endif