/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
driver-specific utilities) */

/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */


#ifndef LINUX_ATM_ZATM_H
#define LINUX_ATM_ZATM_H

/*
* Note: non-kernel programs including this file must also include
* sys/types.h for struct timeval
*/

#include <linux/atmapi.h>
#include <linux/atmioc.h>

#define ZATM_GETPOOL _IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
/* get pool statistics */
#define ZATM_GETPOOLZ _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
/* get statistics and zero */
#define ZATM_SETPOOL _IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
/* set pool parameters */

struct zatm_pool_info {
int ref_count; /* free buffer pool usage counters */
int low_water,high_water; /* refill parameters */
int rqa_count,rqu_count; /* queue condition counters */
int offset,next_off; /* alignment optimizations: offset */
int next_cnt,next_thres; /* repetition counter and threshold */
};

struct zatm_pool_req {
int pool_num; /* pool number */
struct zatm_pool_info info; /* actual information */
};

struct zatm_t_hist {
struct timeval real; /* real (wall-clock) time */
struct timeval expected; /* expected real time */
};


#define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */
#define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */
#define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */
#define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */

#define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to
record; must be 2^n */

#endif