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