File: /usr/include/linux/atm_zatm.h

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