include/uapi/linux/atm_zatm.h

   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