1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef MPOA_CACHES_H |
3 | #define MPOA_CACHES_H |
4 | |
5 | #include <linux/time64.h> |
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> |
11 | #include <linux/refcount.h> |
12 | |
13 | struct mpoa_client; |
14 | |
15 | void atm_mpoa_init_cache(struct mpoa_client *mpc); |
16 | |
17 | typedef struct in_cache_entry { |
18 | struct in_cache_entry *next; |
19 | struct in_cache_entry *prev; |
20 | time64_t time; |
21 | time64_t reply_wait; |
22 | time64_t hold_down; |
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; |
31 | refcount_t use; |
32 | } in_cache_entry; |
33 | |
34 | struct in_cache_ops{ |
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, |
39 | struct mpoa_client *client, |
40 | __be32 mask); |
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, |
45 | struct mpoa_client *client ); |
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); |
52 | }; |
53 | |
54 | typedef struct eg_cache_entry{ |
55 | struct eg_cache_entry *next; |
56 | struct eg_cache_entry *prev; |
57 | time64_t time; |
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; |
64 | refcount_t use; |
65 | } eg_cache_entry; |
66 | |
67 | struct eg_cache_ops{ |
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); |
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 |
91 | #define CLOSED 0 |
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 |
100 | |