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 #define ZATM_GETTHIST _IOW('a',ATMIOC_SARPRV+4,struct atmif_sioc)
25 /* get a history of timer
26 differences */
27
28 struct zatm_pool_info {
29 int ref_count; /* free buffer pool usage counters */
30 int low_water,high_water; /* refill parameters */
31 int rqa_count,rqu_count; /* queue condition counters */
32 int offset,next_off; /* alignment optimizations: offset */
33 int next_cnt,next_thres; /* repetition counter and threshold */
34 };
35
36 struct zatm_pool_req {
37 int pool_num; /* pool number */
38 struct zatm_pool_info info; /* actual information */
39 };
40
41 struct zatm_t_hist {
42 struct timeval real; /* real (wall-clock) time */
43 struct timeval expected; /* expected real time */
44 };
45
46
47 #define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */
48 #define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */
49 #define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */
50 #define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
51
52 #define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to
53 record; must be 2^n */
54
55 #endif
56
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