libnl  1.1.4
tc.h
1 /*
2  * netlink/route/tc.h Traffic Control
3  *
4  * This 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 version 2.1
7  * of the License.
8  *
9  * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
10  */
11 
12 #ifndef NETLINK_TC_H_
13 #define NETLINK_TC_H_
14 
15 #include <netlink/netlink.h>
16 #include <netlink/cache.h>
17 #include <netlink/data.h>
18 
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22 
23 /**
24  * TC statistics identifiers
25  * @ingroup tc
26  */
28  RTNL_TC_PACKETS, /**< Packets seen */
29  RTNL_TC_BYTES, /**< Bytes seen */
30  RTNL_TC_RATE_BPS, /**< Current bits/s (rate estimator) */
31  RTNL_TC_RATE_PPS, /**< Current packet/s (rate estimator) */
32  RTNL_TC_QLEN, /**< Queue length */
33  RTNL_TC_BACKLOG, /**< Backlog length */
34  RTNL_TC_DROPS, /**< Packets dropped */
35  RTNL_TC_REQUEUES, /**< Number of requeues */
36  RTNL_TC_OVERLIMITS, /**< Number of overlimits */
37  __RTNL_TC_STATS_MAX,
38 };
39 
40 #define RTNL_TC_STATS_MAX (__RTNL_TC_STATS_MAX - 1)
41 
42 extern int rtnl_tc_calc_txtime(int, int);
43 extern int rtnl_tc_calc_bufsize(int, int);
44 extern int rtnl_tc_calc_cell_log(int);
45 
46 /**
47  * Number of entries in a transmission time lookup table
48  * @ingroup tc
49  */
50 #define RTNL_TC_RTABLE_SIZE 256
51 
52 extern int rtnl_tc_build_rate_table(uint32_t *, uint8_t, uint8_t, int, int);
53 
54 
55 /* TC Handle Translations */
56 extern char * rtnl_tc_handle2str(uint32_t, char *, size_t);
57 extern int rtnl_tc_str2handle(const char *, uint32_t *);
58 
59 #ifdef __cplusplus
60 }
61 #endif
62 
63 #endif
Bytes seen.
Definition: tc.h:29
int rtnl_tc_calc_txtime(int, int)
Calculate time required to transmit buffer at a specific rate.
Definition: tc.c:383
int rtnl_tc_calc_cell_log(int)
Calculate the binary logarithm for a specific cell size.
Definition: tc.c:420
Current packet/s (rate estimator)
Definition: tc.h:31
Number of overlimits.
Definition: tc.h:36
Backlog length.
Definition: tc.h:33
Queue length.
Definition: tc.h:32
Packets seen.
Definition: tc.h:28
Current bits/s (rate estimator)
Definition: tc.h:30
char * rtnl_tc_handle2str(uint32_t, char *, size_t)
Convert a traffic control handle to a character string (Reentrant).
Definition: tc.c:493
int rtnl_tc_calc_bufsize(int, int)
Calculate buffer size able to transmit in a specific time and rate.
Definition: tc.c:406
rtnl_tc_stats_id
TC statistics identifiers.
Definition: tc.h:27
Packets dropped.
Definition: tc.h:34
Number of requeues.
Definition: tc.h:35
int rtnl_tc_build_rate_table(uint32_t *, uint8_t, uint8_t, int, int)
Compute a transmission time lookup table.
Definition: tc.c:454
int rtnl_tc_str2handle(const char *, uint32_t *)
Convert a charactering strint to a traffic control handle.
Definition: tc.c:528