sysdeps/unix/sysv/linux/net/if_shaper.h

   1 /* Copyright (C) 1998-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _NET_IF_SHAPER_H
  19 #define _NET_IF_SHAPER_H 1
  20
  21 #include <sys/types.h>
  22 #include <stdint.h>
  23 #include <net/if.h>
  24 #include <sys/ioctl.h>
  25
  26 __BEGIN_DECLS
  27
  28 #define SHAPER_QLEN     10
  29 /*
  30  *      This is a bit speed dependant (read it shouldnt be a constant!)
  31  *
  32  *      5 is about right for 28.8 upwards. Below that double for every
  33  *      halving of speed or so. - ie about 20 for 9600 baud.
  34  */
  35 #define SHAPER_LATENCY  (5 * HZ)
  36 #define SHAPER_MAXSLIP  2
  37 #define SHAPER_BURST    (HZ / 50)       /* Good for >128K then */
  38
  39 #define SHAPER_SET_DEV          0x0001
  40 #define SHAPER_SET_SPEED        0x0002
  41 #define SHAPER_GET_DEV          0x0003
  42 #define SHAPER_GET_SPEED        0x0004
  43
  44 struct shaperconf
  45 {
  46   uint16_t ss_cmd;
  47   union
  48   {
  49     char ssu_name[14];
  50     uint32_t ssu_speed;
  51   } ss_u;
  52 #define ss_speed ss_u.ssu_speed
  53 #define ss_name ss_u.ssu_name
  54 };
  55
  56 __END_DECLS
  57
  58 #endif /* net/if_shaper.h */