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mpoa_caches.h
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mpoa_caches.h
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#ifndef MPOA_CACHES_H
#define MPOA_CACHES_H
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/atm.h>
#include <linux/atmdev.h>
#include <linux/atmmpc.h>
struct mpoa_client;
void atm_mpoa_init_cache(struct mpoa_client *mpc);
typedef struct in_cache_entry {
struct in_cache_entry *next;
struct in_cache_entry *prev;
struct timeval tv;
struct timeval reply_wait;
struct timeval hold_down;
uint32_t packets_fwded;
uint16_t entry_state;
uint32_t retry_time;
uint32_t refresh_time;
uint32_t count;
struct atm_vcc *shortcut;
uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
struct in_ctrl_info ctrl_info;
atomic_t use;
} in_cache_entry;
struct in_cache_ops{
in_cache_entry *(*add_entry)(__be32 dst_ip,
struct mpoa_client *client);
in_cache_entry *(*get)(__be32 dst_ip, struct mpoa_client *client);
in_cache_entry *(*get_with_mask)(__be32 dst_ip,
struct mpoa_client *client,
__be32 mask);
in_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc,
struct mpoa_client *client);
void (*put)(in_cache_entry *entry);
void (*remove_entry)(in_cache_entry *delEntry,
struct mpoa_client *client );
int (*cache_hit)(in_cache_entry *entry,
struct mpoa_client *client);
void (*clear_count)(struct mpoa_client *client);
void (*check_resolving)(struct mpoa_client *client);
void (*refresh)(struct mpoa_client *client);
void (*destroy_cache)(struct mpoa_client *mpc);
};
typedef struct eg_cache_entry{
struct eg_cache_entry *next;
struct eg_cache_entry *prev;
struct timeval tv;
uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
struct atm_vcc *shortcut;
uint32_t packets_rcvd;
uint16_t entry_state;
__be32 latest_ip_addr; /* The src IP address of the last packet */
struct eg_ctrl_info ctrl_info;
atomic_t use;
} eg_cache_entry;
struct eg_cache_ops{
eg_cache_entry *(*add_entry)(struct k_message *msg, struct mpoa_client *client);
eg_cache_entry *(*get_by_cache_id)(__be32 cache_id, struct mpoa_client *client);
eg_cache_entry *(*get_by_tag)(__be32 cache_id, struct mpoa_client *client);
eg_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, struct mpoa_client *client);
eg_cache_entry *(*get_by_src_ip)(__be32 ipaddr, struct mpoa_client *client);
void (*put)(eg_cache_entry *entry);
void (*remove_entry)(eg_cache_entry *entry, struct mpoa_client *client);
void (*update)(eg_cache_entry *entry, uint16_t holding_time);
void (*clear_expired)(struct mpoa_client *client);
void (*destroy_cache)(struct mpoa_client *mpc);
};
/* Ingress cache entry states */
#define INGRESS_REFRESHING 3
#define INGRESS_RESOLVED 2
#define INGRESS_RESOLVING 1
#define INGRESS_INVALID 0
/* VCC states */
#define OPEN 1
#define CLOSED 0
/* Egress cache entry states */
#define EGRESS_RESOLVED 2
#define EGRESS_PURGE 1
#define EGRESS_INVALID 0
#endif