1 /* SPDX-License-Identifier: LGPL-2.1-only */ 2 /* 3 * Copyright (c) 2003-2011 Thomas Graf <[email protected]> 4 */ 5 6 #ifndef NETLINK_TC_H_ 7 #define NETLINK_TC_H_ 8 9 #include <netlink/netlink.h> 10 #include <netlink/cache.h> 11 #include <netlink/data.h> 12 #include <netlink/route/link.h> 13 #include <linux/pkt_sched.h> 14 #include <linux/pkt_cls.h> 15 16 #ifdef __cplusplus 17 extern "C" { 18 #endif 19 20 enum rtnl_tc_type { 21 RTNL_TC_TYPE_QDISC, 22 RTNL_TC_TYPE_CLASS, 23 RTNL_TC_TYPE_CLS, 24 RTNL_TC_TYPE_ACT, 25 __RTNL_TC_TYPE_MAX, 26 }; 27 28 #define RTNL_TC_TYPE_MAX (__RTNL_TC_TYPE_MAX - 1) 29 30 /** 31 * Compute tc handle based on major and minor parts 32 * @ingroup tc 33 */ 34 #define TC_HANDLE(maj, min) (TC_H_MAJ((maj) << 16) | TC_H_MIN(min)) 35 36 /** 37 * Traffic control object 38 * @ingroup tc 39 */ 40 struct rtnl_tc; 41 42 /** 43 * Macro to cast qdisc/class/classifier to tc object 44 * @ingroup tc 45 * 46 * @code 47 * rtnl_tc_set_mpu(TC_CAST(qdisc), 40); 48 * @endcode 49 */ 50 #define TC_CAST(ptr) ((struct rtnl_tc *) (ptr)) 51 52 /** 53 * Traffic control statistical identifier 54 * @ingroup tc 55 * 56 * @code 57 * uint64_t n = rtnl_tc_get_stat(TC_CAST(class), RTNL_TC_PACKETS); 58 * @endcode 59 */ 60 enum rtnl_tc_stat { 61 RTNL_TC_PACKETS, /**< Number of packets seen */ 62 RTNL_TC_BYTES, /**< Total bytes seen */ 63 RTNL_TC_RATE_BPS, /**< Current bits/s (rate estimator) */ 64 RTNL_TC_RATE_PPS, /**< Current packet/s (rate estimator) */ 65 RTNL_TC_QLEN, /**< Current queue length */ 66 RTNL_TC_BACKLOG, /**< Current backlog length */ 67 RTNL_TC_DROPS, /**< Total number of packets dropped */ 68 RTNL_TC_REQUEUES, /**< Total number of requeues */ 69 RTNL_TC_OVERLIMITS, /**< Total number of overlimits */ 70 __RTNL_TC_STATS_MAX, 71 }; 72 73 #define RTNL_TC_STATS_MAX (__RTNL_TC_STATS_MAX - 1) 74 75 extern void rtnl_tc_set_ifindex(struct rtnl_tc *, int); 76 extern int rtnl_tc_get_ifindex(struct rtnl_tc *); 77 extern void rtnl_tc_set_link(struct rtnl_tc *, struct rtnl_link *); 78 extern struct rtnl_link *rtnl_tc_get_link(struct rtnl_tc *); 79 extern void rtnl_tc_set_mtu(struct rtnl_tc *, uint32_t); 80 extern uint32_t rtnl_tc_get_mtu(struct rtnl_tc *); 81 extern void rtnl_tc_set_mpu(struct rtnl_tc *, uint32_t); 82 extern uint32_t rtnl_tc_get_mpu(struct rtnl_tc *); 83 extern void rtnl_tc_set_overhead(struct rtnl_tc *, uint32_t); 84 extern uint32_t rtnl_tc_get_overhead(struct rtnl_tc *); 85 extern void rtnl_tc_set_linktype(struct rtnl_tc *, uint32_t); 86 extern uint32_t rtnl_tc_get_linktype(struct rtnl_tc *); 87 extern void rtnl_tc_set_handle(struct rtnl_tc *, uint32_t); 88 extern uint32_t rtnl_tc_get_handle(struct rtnl_tc *); 89 extern void rtnl_tc_set_parent(struct rtnl_tc *, uint32_t); 90 extern uint32_t rtnl_tc_get_parent(struct rtnl_tc *); 91 extern int rtnl_tc_set_kind(struct rtnl_tc *, const char *); 92 extern char * rtnl_tc_get_kind(struct rtnl_tc *); 93 extern uint64_t rtnl_tc_get_stat(struct rtnl_tc *, enum rtnl_tc_stat); 94 extern char * rtnl_tc_stat2str(enum rtnl_tc_stat, char *, size_t); 95 extern int rtnl_tc_str2stat(const char *); 96 97 extern int rtnl_tc_calc_txtime(int, int); 98 extern int rtnl_tc_calc_bufsize(int, int); 99 extern int rtnl_tc_calc_cell_log(int); 100 101 extern int rtnl_tc_read_classid_file(void); 102 extern char * rtnl_tc_handle2str(uint32_t, char *, size_t); 103 extern int rtnl_tc_str2handle(const char *, uint32_t *); 104 extern int rtnl_classid_generate(const char *, uint32_t *, 105 uint32_t); 106 extern void rtnl_tc_set_chain(struct rtnl_tc *, uint32_t); 107 extern int rtnl_tc_get_chain(struct rtnl_tc *, uint32_t *); 108 109 #ifdef __cplusplus 110 } 111 #endif 112 113 #endif 114