1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
 3		driver-specific utilities) */
 4
 5/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
 6
 7
 8#ifndef LINUX_ATM_ZATM_H
 9#define LINUX_ATM_ZATM_H
10
11/*
12 * Note: non-kernel programs including this file must also include
13 * sys/types.h for struct timeval
14 */
15
16#include <linux/atmapi.h>
17#include <linux/atmioc.h>
18
19#define ZATM_GETPOOL	_IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
20						/* get pool statistics */
21#define ZATM_GETPOOLZ	_IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
22						/* get statistics and zero */
23#define ZATM_SETPOOL	_IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
24						/* set pool parameters */
25
26struct zatm_pool_info {
27	int ref_count;			/* free buffer pool usage counters */
28	int low_water,high_water;	/* refill parameters */
29	int rqa_count,rqu_count;	/* queue condition counters */
30	int offset,next_off;		/* alignment optimizations: offset */
31	int next_cnt,next_thres;	/* repetition counter and threshold */
32};
33
34struct zatm_pool_req {
35	int pool_num;			/* pool number */
36	struct zatm_pool_info info;	/* actual information */
37};
38
39#define ZATM_OAM_POOL		0	/* free buffer pool for OAM cells */
40#define ZATM_AAL0_POOL		1	/* free buffer pool for AAL0 cells */
41#define ZATM_AAL5_POOL_BASE	2	/* first AAL5 free buffer pool */
42#define ZATM_LAST_POOL	ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
43
44#define ZATM_TIMER_HISTORY_SIZE	16	/* number of timer adjustments to
45					   record; must be 2^n */
46
47#endif