1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef MPOA_CACHES_H 3*4882a593Smuzhiyun #define MPOA_CACHES_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/time64.h> 6*4882a593Smuzhiyun #include <linux/netdevice.h> 7*4882a593Smuzhiyun #include <linux/types.h> 8*4882a593Smuzhiyun #include <linux/atm.h> 9*4882a593Smuzhiyun #include <linux/atmdev.h> 10*4882a593Smuzhiyun #include <linux/atmmpc.h> 11*4882a593Smuzhiyun #include <linux/refcount.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun struct mpoa_client; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun void atm_mpoa_init_cache(struct mpoa_client *mpc); 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun typedef struct in_cache_entry { 18*4882a593Smuzhiyun struct in_cache_entry *next; 19*4882a593Smuzhiyun struct in_cache_entry *prev; 20*4882a593Smuzhiyun time64_t time; 21*4882a593Smuzhiyun time64_t reply_wait; 22*4882a593Smuzhiyun time64_t hold_down; 23*4882a593Smuzhiyun uint32_t packets_fwded; 24*4882a593Smuzhiyun uint16_t entry_state; 25*4882a593Smuzhiyun uint32_t retry_time; 26*4882a593Smuzhiyun uint32_t refresh_time; 27*4882a593Smuzhiyun uint32_t count; 28*4882a593Smuzhiyun struct atm_vcc *shortcut; 29*4882a593Smuzhiyun uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN]; 30*4882a593Smuzhiyun struct in_ctrl_info ctrl_info; 31*4882a593Smuzhiyun refcount_t use; 32*4882a593Smuzhiyun } in_cache_entry; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun struct in_cache_ops{ 35*4882a593Smuzhiyun in_cache_entry *(*add_entry)(__be32 dst_ip, 36*4882a593Smuzhiyun struct mpoa_client *client); 37*4882a593Smuzhiyun in_cache_entry *(*get)(__be32 dst_ip, struct mpoa_client *client); 38*4882a593Smuzhiyun in_cache_entry *(*get_with_mask)(__be32 dst_ip, 39*4882a593Smuzhiyun struct mpoa_client *client, 40*4882a593Smuzhiyun __be32 mask); 41*4882a593Smuzhiyun in_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, 42*4882a593Smuzhiyun struct mpoa_client *client); 43*4882a593Smuzhiyun void (*put)(in_cache_entry *entry); 44*4882a593Smuzhiyun void (*remove_entry)(in_cache_entry *delEntry, 45*4882a593Smuzhiyun struct mpoa_client *client ); 46*4882a593Smuzhiyun int (*cache_hit)(in_cache_entry *entry, 47*4882a593Smuzhiyun struct mpoa_client *client); 48*4882a593Smuzhiyun void (*clear_count)(struct mpoa_client *client); 49*4882a593Smuzhiyun void (*check_resolving)(struct mpoa_client *client); 50*4882a593Smuzhiyun void (*refresh)(struct mpoa_client *client); 51*4882a593Smuzhiyun void (*destroy_cache)(struct mpoa_client *mpc); 52*4882a593Smuzhiyun }; 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun typedef struct eg_cache_entry{ 55*4882a593Smuzhiyun struct eg_cache_entry *next; 56*4882a593Smuzhiyun struct eg_cache_entry *prev; 57*4882a593Smuzhiyun time64_t time; 58*4882a593Smuzhiyun uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN]; 59*4882a593Smuzhiyun struct atm_vcc *shortcut; 60*4882a593Smuzhiyun uint32_t packets_rcvd; 61*4882a593Smuzhiyun uint16_t entry_state; 62*4882a593Smuzhiyun __be32 latest_ip_addr; /* The src IP address of the last packet */ 63*4882a593Smuzhiyun struct eg_ctrl_info ctrl_info; 64*4882a593Smuzhiyun refcount_t use; 65*4882a593Smuzhiyun } eg_cache_entry; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun struct eg_cache_ops{ 68*4882a593Smuzhiyun eg_cache_entry *(*add_entry)(struct k_message *msg, struct mpoa_client *client); 69*4882a593Smuzhiyun eg_cache_entry *(*get_by_cache_id)(__be32 cache_id, struct mpoa_client *client); 70*4882a593Smuzhiyun eg_cache_entry *(*get_by_tag)(__be32 cache_id, struct mpoa_client *client); 71*4882a593Smuzhiyun eg_cache_entry *(*get_by_vcc)(struct atm_vcc *vcc, struct mpoa_client *client); 72*4882a593Smuzhiyun eg_cache_entry *(*get_by_src_ip)(__be32 ipaddr, struct mpoa_client *client); 73*4882a593Smuzhiyun void (*put)(eg_cache_entry *entry); 74*4882a593Smuzhiyun void (*remove_entry)(eg_cache_entry *entry, struct mpoa_client *client); 75*4882a593Smuzhiyun void (*update)(eg_cache_entry *entry, uint16_t holding_time); 76*4882a593Smuzhiyun void (*clear_expired)(struct mpoa_client *client); 77*4882a593Smuzhiyun void (*destroy_cache)(struct mpoa_client *mpc); 78*4882a593Smuzhiyun }; 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun /* Ingress cache entry states */ 82*4882a593Smuzhiyun 83*4882a593Smuzhiyun #define INGRESS_REFRESHING 3 84*4882a593Smuzhiyun #define INGRESS_RESOLVED 2 85*4882a593Smuzhiyun #define INGRESS_RESOLVING 1 86*4882a593Smuzhiyun #define INGRESS_INVALID 0 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun /* VCC states */ 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun #define OPEN 1 91*4882a593Smuzhiyun #define CLOSED 0 92*4882a593Smuzhiyun 93*4882a593Smuzhiyun /* Egress cache entry states */ 94*4882a593Smuzhiyun 95*4882a593Smuzhiyun #define EGRESS_RESOLVED 2 96*4882a593Smuzhiyun #define EGRESS_PURGE 1 97*4882a593Smuzhiyun #define EGRESS_INVALID 0 98*4882a593Smuzhiyun 99*4882a593Smuzhiyun #endif 100