diff options
Diffstat (limited to 'net/atm/mpoa_caches.h')
| -rw-r--r-- | net/atm/mpoa_caches.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/net/atm/mpoa_caches.h b/net/atm/mpoa_caches.h new file mode 100644 index 0000000000..464c4c7f8d --- /dev/null +++ b/net/atm/mpoa_caches.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef MPOA_CACHES_H +#define MPOA_CACHES_H + +#include <linux/time64.h> +#include <linux/netdevice.h> +#include <linux/types.h> +#include <linux/atm.h> +#include <linux/atmdev.h> +#include <linux/atmmpc.h> +#include <linux/refcount.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; + time64_t time; + time64_t reply_wait; + time64_t 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; + refcount_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; + time64_t time; + 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; + refcount_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 |