1 /* $OpenBSD: nfsrtt.h,v 1.6 2003/06/02 23:28:20 millert Exp $ */
2 /* $NetBSD: nfsrtt.h,v 1.4 1996/02/18 11:54:07 fvdl Exp $ */
3
4 /*
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Rick Macklem at The University of Guelph.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)nfsrtt.h 8.2 (Berkeley) 3/30/95
36 */
37
38
39 #ifndef _NFS_NFSRTT_H_
40 #define _NFS_NFSRTT_H_
41
42 /*
43 * Definitions for performance monitor.
44 * The client and server logging are turned on by setting the global
45 * constant "nfsrtton" to 1.
46 */
47 #define NFSRTTLOGSIZ 128
48
49 /*
50 * Circular log of client side rpc activity. Each log entry is for one
51 * rpc filled in upon completion. (ie. in order of completion)
52 * The "pos" is the table index for the "next" entry, therefore the
53 * list goes from nfsrtt.rttl[pos] --> nfsrtt.rttl[pos - 1] in
54 * chronological order of completion.
55 */
56 struct nfsrtt {
57 int pos; /* Position in array for next entry */
58 struct rttl {
59 int proc; /* NFS procedure number */
60 int rtt; /* Measured round trip time */
61 int rto; /* Round Trip Timeout */
62 int sent; /* # rpcs in progress */
63 int cwnd; /* Send window */
64 int srtt; /* Ave Round Trip Time */
65 int sdrtt; /* Ave mean deviation of RTT */
66 fsid_t fsid; /* Fsid for mount point */
67 struct timeval tstamp; /* Timestamp of log entry */
68 } rttl[NFSRTTLOGSIZ];
69 };
70
71 /*
72 * And definitions for server side performance monitor.
73 * The log organization is the same as above except it is filled in at the
74 * time the server sends the rpc reply.
75 */
76
77 /*
78 * Bits for the flags field.
79 */
80 #define DRT_TCP 0x02 /* Client used TCP transport */
81 #define DRT_CACHEREPLY 0x04 /* Reply was from recent request cache */
82 #define DRT_CACHEDROP 0x08 /* Rpc request dropped, due to recent reply */
83 #define DRT_NFSV3 0x10 /* Rpc used NFS Version 3 */
84
85 /*
86 * Server log structure
87 * NB: ipadr == INADDR_ANY indicates a client using a non IP protocol.
88 * (ISO perhaps?)
89 */
90 struct nfsdrt {
91 int pos; /* Position of next log entry */
92 struct drt {
93 int flag; /* Bits as defined above */
94 int proc; /* NFS procedure number */
95 u_int32_t ipadr; /* IP address of client */
96 int resptime; /* Response time (usec) */
97 struct timeval tstamp; /* Timestamp of log entry */
98 } drt[NFSRTTLOGSIZ];
99 };
100
101 #endif