53 строки
1.6 KiB
C
53 строки
1.6 KiB
C
/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
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driver-specific utilities) */
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/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
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#ifndef LINUX_ATM_ZATM_H
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#define LINUX_ATM_ZATM_H
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/*
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* Note: non-kernel programs including this file must also include
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* sys/types.h for struct timeval
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*/
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#include <linux/atmapi.h>
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#include <linux/atmioc.h>
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#define ZATM_GETPOOL _IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
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/* get pool statistics */
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#define ZATM_GETPOOLZ _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
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/* get statistics and zero */
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#define ZATM_SETPOOL _IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
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/* set pool parameters */
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struct zatm_pool_info {
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int ref_count; /* free buffer pool usage counters */
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int low_water,high_water; /* refill parameters */
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int rqa_count,rqu_count; /* queue condition counters */
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int offset,next_off; /* alignment optimizations: offset */
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int next_cnt,next_thres; /* repetition counter and threshold */
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};
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struct zatm_pool_req {
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int pool_num; /* pool number */
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struct zatm_pool_info info; /* actual information */
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};
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struct zatm_t_hist {
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struct timeval real; /* real (wall-clock) time */
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struct timeval expected; /* expected real time */
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};
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#define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */
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#define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */
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#define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */
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#define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
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#define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to
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record; must be 2^n */
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#endif
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