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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef MPOA_CACHES_H |
3 | #define MPOA_CACHES_H | |
4 | ||
d750dbdc | 5 | #include <linux/time64.h> |
1da177e4 LT |
6 | #include <linux/netdevice.h> |
7 | #include <linux/types.h> | |
8 | #include <linux/atm.h> | |
9 | #include <linux/atmdev.h> | |
10 | #include <linux/atmmpc.h> | |
93714912 | 11 | #include <linux/refcount.h> |
1da177e4 LT |
12 | |
13 | struct mpoa_client; | |
14 | ||
15 | void atm_mpoa_init_cache(struct mpoa_client *mpc); | |
16 | ||
17 | typedef struct in_cache_entry { | |
f7d57453 YH |
18 | struct in_cache_entry *next; |
19 | struct in_cache_entry *prev; | |
d750dbdc TR |
20 | time64_t time; |
21 | time64_t reply_wait; | |
22 | time64_t hold_down; | |
f7d57453 YH |
23 | uint32_t packets_fwded; |
24 | uint16_t entry_state; | |
25 | uint32_t retry_time; | |
26 | uint32_t refresh_time; | |
27 | uint32_t count; | |
28 | struct atm_vcc *shortcut; | |
29 | uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN]; | |
30 | struct in_ctrl_info ctrl_info; | |
93714912 | 31 | refcount_t use; |
1da177e4 LT |
32 | } in_cache_entry; |
33 | ||
34 | struct in_cache_ops{ | |
f7d57453 YH |
35 | in_cache_entry *(*add_entry)(__be32 dst_ip, |
36 | struct mpoa_client *client); | |
37 | in_cache_entry *(*get)(__be32 dst_ip, struct mpoa_client *client); | |
38 | in_cache_entry *(*get_with_mask)(__be32 dst_ip, | |
1da177e4 | 39 | struct mpoa_client *client, |
30d492da | 40 | __be32 mask); |
f7d57453 YH |
41 | in_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, |
42 | struct mpoa_client *client); | |
43 | void (*put)(in_cache_entry *entry); | |
44 | void (*remove_entry)(in_cache_entry *delEntry, | |
1da177e4 | 45 | struct mpoa_client *client ); |
f7d57453 YH |
46 | int (*cache_hit)(in_cache_entry *entry, |
47 | struct mpoa_client *client); | |
48 | void (*clear_count)(struct mpoa_client *client); | |
49 | void (*check_resolving)(struct mpoa_client *client); | |
50 | void (*refresh)(struct mpoa_client *client); | |
51 | void (*destroy_cache)(struct mpoa_client *mpc); | |
1da177e4 LT |
52 | }; |
53 | ||
54 | typedef struct eg_cache_entry{ | |
f7d57453 YH |
55 | struct eg_cache_entry *next; |
56 | struct eg_cache_entry *prev; | |
d750dbdc | 57 | time64_t time; |
f7d57453 YH |
58 | uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN]; |
59 | struct atm_vcc *shortcut; | |
60 | uint32_t packets_rcvd; | |
61 | uint16_t entry_state; | |
62 | __be32 latest_ip_addr; /* The src IP address of the last packet */ | |
63 | struct eg_ctrl_info ctrl_info; | |
e00bdbef | 64 | refcount_t use; |
1da177e4 LT |
65 | } eg_cache_entry; |
66 | ||
67 | struct eg_cache_ops{ | |
f7d57453 YH |
68 | eg_cache_entry *(*add_entry)(struct k_message *msg, struct mpoa_client *client); |
69 | eg_cache_entry *(*get_by_cache_id)(__be32 cache_id, struct mpoa_client *client); | |
70 | eg_cache_entry *(*get_by_tag)(__be32 cache_id, struct mpoa_client *client); | |
71 | eg_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, struct mpoa_client *client); | |
72 | eg_cache_entry *(*get_by_src_ip)(__be32 ipaddr, struct mpoa_client *client); | |
73 | void (*put)(eg_cache_entry *entry); | |
74 | void (*remove_entry)(eg_cache_entry *entry, struct mpoa_client *client); | |
75 | void (*update)(eg_cache_entry *entry, uint16_t holding_time); | |
76 | void (*clear_expired)(struct mpoa_client *client); | |
77 | void (*destroy_cache)(struct mpoa_client *mpc); | |
1da177e4 LT |
78 | }; |
79 | ||
80 | ||
81 | /* Ingress cache entry states */ | |
82 | ||
83 | #define INGRESS_REFRESHING 3 | |
84 | #define INGRESS_RESOLVED 2 | |
85 | #define INGRESS_RESOLVING 1 | |
86 | #define INGRESS_INVALID 0 | |
87 | ||
88 | /* VCC states */ | |
89 | ||
90 | #define OPEN 1 | |
f7d57453 | 91 | #define CLOSED 0 |
1da177e4 LT |
92 | |
93 | /* Egress cache entry states */ | |
94 | ||
95 | #define EGRESS_RESOLVED 2 | |
96 | #define EGRESS_PURGE 1 | |
97 | #define EGRESS_INVALID 0 | |
98 | ||
99 | #endif |