1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/netdevice.h>
6 #include <linux/types.h>
8 #include <linux/atmdev.h>
9 #include <linux/atmmpc.h>
10 #include <linux/refcount.h>
14 void atm_mpoa_init_cache(struct mpoa_client *mpc);
16 typedef struct in_cache_entry {
17 struct in_cache_entry *next;
18 struct in_cache_entry *prev;
20 struct timeval reply_wait;
21 struct timeval hold_down;
22 uint32_t packets_fwded;
25 uint32_t refresh_time;
27 struct atm_vcc *shortcut;
28 uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
29 struct in_ctrl_info ctrl_info;
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,
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);
53 typedef struct eg_cache_entry{
54 struct eg_cache_entry *next;
55 struct eg_cache_entry *prev;
57 uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
58 struct atm_vcc *shortcut;
59 uint32_t packets_rcvd;
61 __be32 latest_ip_addr; /* The src IP address of the last packet */
62 struct eg_ctrl_info ctrl_info;
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);
80 /* Ingress cache entry states */
82 #define INGRESS_REFRESHING 3
83 #define INGRESS_RESOLVED 2
84 #define INGRESS_RESOLVING 1
85 #define INGRESS_INVALID 0
92 /* Egress cache entry states */
94 #define EGRESS_RESOLVED 2
95 #define EGRESS_PURGE 1
96 #define EGRESS_INVALID 0