[mirror_ubuntu-artful-kernel.git] / net / atm / mpoa_caches.h

#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>
#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;
	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;
	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;
	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;
	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
Commit	Line	Data
1da177e4 LT	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>
93714912	9	#include <linux/refcount.h>
1da177e4 LT	10
	11	struct mpoa_client;
	12
	13	void atm_mpoa_init_cache(struct mpoa_client *mpc);
	14
	15	typedef struct in_cache_entry {
f7d57453 YH	16	struct in_cache_entry *next;
	17	struct in_cache_entry *prev;
	18	struct timeval tv;
	19	struct timeval reply_wait;
	20	struct timeval hold_down;
	21	uint32_t packets_fwded;
	22	uint16_t entry_state;
	23	uint32_t retry_time;
	24	uint32_t refresh_time;
	25	uint32_t count;
	26	struct atm_vcc *shortcut;
	27	uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
	28	struct in_ctrl_info ctrl_info;
93714912	29	refcount_t use;
1da177e4 LT	30	} in_cache_entry;
	31
	32	struct in_cache_ops{
f7d57453 YH	33	in_cache_entry (add_entry)(__be32 dst_ip,
	34	struct mpoa_client *client);
	35	in_cache_entry (get)(__be32 dst_ip, struct mpoa_client *client);
	36	in_cache_entry (get_with_mask)(__be32 dst_ip,
1da177e4	37	struct mpoa_client *client,
30d492da	38	__be32 mask);
f7d57453 YH	39	in_cache_entry (get_by_vcc)(struct atm_vcc *vcc,
	40	struct mpoa_client *client);
	41	void (put)(in_cache_entry entry);
	42	void (remove_entry)(in_cache_entry delEntry,
1da177e4	43	struct mpoa_client *client );
f7d57453 YH	44	int (cache_hit)(in_cache_entry entry,
	45	struct mpoa_client *client);
	46	void (clear_count)(struct mpoa_client client);
	47	void (check_resolving)(struct mpoa_client client);
	48	void (refresh)(struct mpoa_client client);
	49	void (destroy_cache)(struct mpoa_client mpc);
1da177e4 LT	50	};
	51
	52	typedef struct eg_cache_entry{
f7d57453 YH	53	struct eg_cache_entry *next;
	54	struct eg_cache_entry *prev;
	55	struct timeval tv;
	56	uint8_t MPS_ctrl_ATM_addr[ATM_ESA_LEN];
	57	struct atm_vcc *shortcut;
	58	uint32_t packets_rcvd;
	59	uint16_t entry_state;
	60	__be32 latest_ip_addr; /* The src IP address of the last packet */
	61	struct eg_ctrl_info ctrl_info;
e00bdbef	62	refcount_t use;
1da177e4 LT	63	} eg_cache_entry;
	64
	65	struct eg_cache_ops{
f7d57453 YH	66	eg_cache_entry (add_entry)(struct k_message msg, struct mpoa_client client);
	67	eg_cache_entry (get_by_cache_id)(__be32 cache_id, struct mpoa_client *client);
	68	eg_cache_entry (get_by_tag)(__be32 cache_id, struct mpoa_client *client);
	69	eg_cache_entry (get_by_vcc)(struct atm_vcc vcc, struct mpoa_client client);
	70	eg_cache_entry (get_by_src_ip)(__be32 ipaddr, struct mpoa_client *client);
	71	void (put)(eg_cache_entry entry);
	72	void (remove_entry)(eg_cache_entry entry, struct mpoa_client *client);
	73	void (update)(eg_cache_entry entry, uint16_t holding_time);
	74	void (clear_expired)(struct mpoa_client client);
	75	void (destroy_cache)(struct mpoa_client mpc);
1da177e4 LT	76	};
	77
	78
	79	/* Ingress cache entry states */
	80
	81	#define INGRESS_REFRESHING 3
	82	#define INGRESS_RESOLVED 2
	83	#define INGRESS_RESOLVING 1
	84	#define INGRESS_INVALID 0
	85
	86	/* VCC states */
	87
	88	#define OPEN 1
f7d57453	89	#define CLOSED 0
1da177e4 LT	90
	91	/* Egress cache entry states */
	92
	93	#define EGRESS_RESOLVED 2
	94	#define EGRESS_PURGE 1
	95	#define EGRESS_INVALID 0
	96
	97	#endif