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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - net/atm/mpoa_caches.h
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