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