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 102