1/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
2		driver-specific utilities) */
3
4/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
5
6
7#ifndef LINUX_ATM_ZATM_H
8#define LINUX_ATM_ZATM_H
9
10/*
11 * Note: non-kernel programs including this file must also include
12 * sys/types.h for struct timeval
13 */
14
15#include <linux/atmapi.h>
16#include <linux/atmioc.h>
17
18#define ZATM_GETPOOL	_IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
19						/* get pool statistics */
20#define ZATM_GETPOOLZ	_IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
21						/* get statistics and zero */
22#define ZATM_SETPOOL	_IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
23						/* set pool parameters */
24
25struct zatm_pool_info {
26	int ref_count;			/* free buffer pool usage counters */
27	int low_water,high_water;	/* refill parameters */
28	int rqa_count,rqu_count;	/* queue condition counters */
29	int offset,next_off;		/* alignment optimizations: offset */
30	int next_cnt,next_thres;	/* repetition counter and threshold */
31};
32
33struct zatm_pool_req {
34	int pool_num;			/* pool number */
35	struct zatm_pool_info info;	/* actual information */
36};
37
38struct zatm_t_hist {
39	struct timeval real;		/* real (wall-clock) time */
40	struct timeval expected;	/* expected real time */
41};
42
43
44#define ZATM_OAM_POOL		0	/* free buffer pool for OAM cells */
45#define ZATM_AAL0_POOL		1	/* free buffer pool for AAL0 cells */
46#define ZATM_AAL5_POOL_BASE	2	/* first AAL5 free buffer pool */
47#define ZATM_LAST_POOL	ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
48
49#define ZATM_TIMER_HISTORY_SIZE	16	/* number of timer adjustments to
50					   record; must be 2^n */
51
52#endif
53