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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* 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