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      1 /*	$NetBSD: if_stats.h,v 1.6 2024/07/01 13:13:37 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _NET_IF_STATS_H_
     33 #define _NET_IF_STATS_H_
     34 
     35 #include <net/net_stats.h>
     36 
     37 /*
     38  * Interface statistics.  All values are unsigned 64-bit.
     39  */
     40 typedef enum {
     41 	if_ipackets		= 0,	/* packets received on interface */
     42 	if_ierrors		= 1,	/* input errors on interface */
     43 	if_opackets		= 2,	/* packets sent on interface */
     44 	if_oerrors		= 3,	/* output errors on interface */
     45 	if_collisions		= 4,	/* collisions on csma interfaces */
     46 	if_ibytes		= 5,	/* total number of octets received */
     47 	if_obytes		= 6,	/* total number of octets sent */
     48 	if_imcasts		= 7,	/* packets received via multicast */
     49 	if_omcasts		= 8,	/* packets sent via multicast */
     50 	if_iqdrops		= 9,	/* dropped on input, this interface */
     51 	if_noproto		= 10,	/* destined for unsupported protocol */
     52 
     53 	IF_NSTATS		= 11
     54 } if_stat_t;
     55 
     56 #ifdef _KERNEL
     57 
     58 #include <sys/sdt.h>
     59 
     60 SDT_PROBE_DECLARE(sdt, net, interface, stat);
     61 
     62 #define	IF_STAT_GETREF(ifp)	_NET_STAT_GETREF((ifp)->if_stats)
     63 #define	IF_STAT_PUTREF(ifp)	_NET_STAT_PUTREF((ifp)->if_stats)
     64 
     65 static inline void
     66 if_statinc(ifnet_t *ifp, if_stat_t x)
     67 {
     68 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, +1);
     69 	_NET_STATINC((ifp)->if_stats, x);
     70 }
     71 
     72 static inline void
     73 if_statinc_ref(ifnet_t *ifp, net_stat_ref_t nsr, if_stat_t x)
     74 {
     75 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, +1);
     76 	_NET_STATINC_REF(nsr, x);
     77 }
     78 
     79 static inline void
     80 if_statdec(ifnet_t *ifp, if_stat_t x)
     81 {
     82 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, -1);
     83 	_NET_STATDEC((ifp)->if_stats, x);
     84 }
     85 
     86 static inline void
     87 if_statdec_ref(ifnet_t *ifp, net_stat_ref_t nsr, if_stat_t x)
     88 {
     89 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, -1);
     90 	_NET_STATDEC_REF(nsr, x);
     91 }
     92 
     93 static inline void
     94 if_statadd(ifnet_t *ifp, if_stat_t x, uint64_t v)
     95 {
     96 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, v);
     97 	_NET_STATADD((ifp)->if_stats, x, v);
     98 }
     99 
    100 static inline void
    101 if_statadd_ref(ifnet_t *ifp, net_stat_ref_t nsr, if_stat_t x, uint64_t v)
    102 {
    103 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, v);
    104 	_NET_STATADD_REF(nsr, x, v);
    105 }
    106 
    107 static inline void
    108 if_statadd2(ifnet_t *ifp, if_stat_t x1, uint64_t v1, if_stat_t x2, uint64_t v2)
    109 {
    110 	net_stat_ref_t _nsr_ = IF_STAT_GETREF(ifp);
    111 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x1, v1);
    112 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x2, v2);
    113 	_NET_STATADD_REF(_nsr_, x1, v1);
    114 	_NET_STATADD_REF(_nsr_, x2, v2);
    115 	IF_STAT_PUTREF(ifp);
    116 }
    117 
    118 static inline void
    119 if_statsub(ifnet_t *ifp, if_stat_t x, uint64_t v)
    120 {
    121 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, -v);
    122 	_NET_STATSUB((ifp)->if_stats, x, v);
    123 }
    124 
    125 static inline void
    126 if_statsub_ref(ifnet_t *ifp, net_stat_ref_t nsr, if_stat_t x, uint64_t v)
    127 {
    128 	SDT_PROBE3(sdt, net, interface, stat,  ifp, x, -v);
    129 	_NET_STATSUB_REF(nsr, x, v);
    130 }
    131 
    132 void	if_stats_init(ifnet_t *);
    133 void	if_stats_fini(ifnet_t *);
    134 void	if_stats_to_if_data(ifnet_t *, struct if_data *, bool);
    135 
    136 #endif /* _KERNEL */
    137 
    138 #endif /* !_NET_IF_STATS_H_ */
    139