linux-headers (unknown)
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
26 struct 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
34 struct 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
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