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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef MPOA_CACHES_H
2#define MPOA_CACHES_H
3
4#include <linux/netdevice.h>
5#include <linux/types.h>
6#include <linux/atm.h>
7#include <linux/atmdev.h>
8#include <linux/atmmpc.h>
9
10struct mpoa_client;
11
12void atm_mpoa_init_cache(struct mpoa_client *mpc);
13
14typedef struct in_cache_entry {
15 struct in_cache_entry *next;
16 struct in_cache_entry *prev;
17 struct timeval tv;
18 struct timeval reply_wait;
19 struct timeval hold_down;
20 uint32_t packets_fwded;
21 uint16_t entry_state;
22 uint32_t retry_time;
23 uint32_t refresh_time;
24 uint32_t count;
25 struct atm_vcc *shortcut;
26 uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
27 struct in_ctrl_info ctrl_info;
28 atomic_t use;
29} in_cache_entry;
30
31struct in_cache_ops{
32 in_cache_entry *(*add_entry)(uint32_t dst_ip,
33 struct mpoa_client *client);
34 in_cache_entry *(*get)(uint32_t dst_ip, struct mpoa_client *client);
35 in_cache_entry *(*get_with_mask)(uint32_t dst_ip,
36 struct mpoa_client *client,
37 uint32_t mask);
38 in_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc,
39 struct mpoa_client *client);
40 void (*put)(in_cache_entry *entry);
41 void (*remove_entry)(in_cache_entry *delEntry,
42 struct mpoa_client *client );
43 int (*cache_hit)(in_cache_entry *entry,
44 struct mpoa_client *client);
45 void (*clear_count)(struct mpoa_client *client);
46 void (*check_resolving)(struct mpoa_client *client);
47 void (*refresh)(struct mpoa_client *client);
48 void (*destroy_cache)(struct mpoa_client *mpc);
49};
50
51typedef struct eg_cache_entry{
52 struct eg_cache_entry *next;
53 struct eg_cache_entry *prev;
54 struct timeval tv;
55 uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
56 struct atm_vcc *shortcut;
57 uint32_t packets_rcvd;
58 uint16_t entry_state;
59 uint32_t latest_ip_addr; /* The src IP address of the last packet */
60 struct eg_ctrl_info ctrl_info;
61 atomic_t use;
62} eg_cache_entry;
63
64struct eg_cache_ops{
65 eg_cache_entry *(*add_entry)(struct k_message *msg, struct mpoa_client *client);
66 eg_cache_entry *(*get_by_cache_id)(uint32_t cache_id, struct mpoa_client *client);
67 eg_cache_entry *(*get_by_tag)(uint32_t cache_id, struct mpoa_client *client);
68 eg_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, struct mpoa_client *client);
69 eg_cache_entry *(*get_by_src_ip)(uint32_t ipaddr, struct mpoa_client *client);
70 void (*put)(eg_cache_entry *entry);
71 void (*remove_entry)(eg_cache_entry *entry, struct mpoa_client *client);
72 void (*update)(eg_cache_entry *entry, uint16_t holding_time);
73 void (*clear_expired)(struct mpoa_client *client);
74 void (*destroy_cache)(struct mpoa_client *mpc);
75};
76
77
78/* Ingress cache entry states */
79
80#define INGRESS_REFRESHING 3
81#define INGRESS_RESOLVED 2
82#define INGRESS_RESOLVING 1
83#define INGRESS_INVALID 0
84
85/* VCC states */
86
87#define OPEN 1
88#define CLOSED 0
89
90/* Egress cache entry states */
91
92#define EGRESS_RESOLVED 2
93#define EGRESS_PURGE 1
94#define EGRESS_INVALID 0
95
96#endif