blob: 8e5f78cf0be1456c348a08e0539b31bea0f79632 [file] [log] [blame]
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 {
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090015 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029} in_cache_entry;
30
31struct in_cache_ops{
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090032 in_cache_entry *(*add_entry)(__be32 dst_ip,
33 struct mpoa_client *client);
34 in_cache_entry *(*get)(__be32 dst_ip, struct mpoa_client *client);
35 in_cache_entry *(*get_with_mask)(__be32 dst_ip,
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 struct mpoa_client *client,
Al Viro30d492d2006-11-14 21:11:29 -080037 __be32 mask);
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090038 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,
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 struct mpoa_client *client );
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090043 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -070049};
50
51typedef struct eg_cache_entry{
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090052 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 __be32 latest_ip_addr; /* The src IP address of the last packet */
60 struct eg_ctrl_info ctrl_info;
61 atomic_t use;
Linus Torvalds1da177e2005-04-16 15:20:36 -070062} eg_cache_entry;
63
64struct eg_cache_ops{
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090065 eg_cache_entry *(*add_entry)(struct k_message *msg, struct mpoa_client *client);
66 eg_cache_entry *(*get_by_cache_id)(__be32 cache_id, struct mpoa_client *client);
67 eg_cache_entry *(*get_by_tag)(__be32 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)(__be32 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -070075};
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
YOSHIFUJI Hideakif7d57452007-02-09 23:24:29 +090088#define CLOSED 0
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90/* Egress cache entry states */
91
92#define EGRESS_RESOLVED 2
93#define EGRESS_PURGE 1
94#define EGRESS_INVALID 0
95
96#endif