/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by driver-specific utilities) */ /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */ #ifndef LINUX_ATM_ZATM_H #define LINUX_ATM_ZATM_H /* * Note: non-kernel programs including this file must also include * sys/types.h for struct timeval */ #include #include #define ZATM_GETPOOL _IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc) /* get pool statistics */ #define ZATM_GETPOOLZ _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc) /* get statistics and zero */ #define ZATM_SETPOOL _IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc) /* set pool parameters */ struct zatm_pool_info { int ref_count; /* free buffer pool usage counters */ int low_water,high_water; /* refill parameters */ int rqa_count,rqu_count; /* queue condition counters */ int offset,next_off; /* alignment optimizations: offset */ int next_cnt,next_thres; /* repetition counter and threshold */ }; struct zatm_pool_req { int pool_num; /* pool number */ struct zatm_pool_info info; /* actual information */ }; #define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */ #define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */ #define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */ #define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */ #define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to record; must be 2^n */ #endif