1 /* $NetBSD: nfsrtt.h,v 1.2 1994/06/29 06:42:37 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)nfsrtt.h 8.1 (Berkeley) 6/10/93 39 */ 40 41 /* 42 * Definitions for performance monitor. 43 * The client and server logging are turned on by setting the global 44 * constant "nfsrtton" to 1. 45 */ 46 #define NFSRTTLOGSIZ 128 47 48 /* 49 * Circular log of client side rpc activity. Each log entry is for one 50 * rpc filled in upon completion. (ie. in order of completion) 51 * The "pos" is the table index for the "next" entry, therefore the 52 * list goes from nfsrtt.rttl[pos] --> nfsrtt.rttl[pos - 1] in 53 * chronological order of completion. 54 */ 55 struct nfsrtt { 56 int pos; /* Position in array for next entry */ 57 struct rttl { 58 int proc; /* NFS procedure number */ 59 int rtt; /* Measured round trip time */ 60 int rto; /* Round Trip Timeout */ 61 int sent; /* # rpcs in progress */ 62 int cwnd; /* Send window */ 63 int srtt; /* Ave Round Trip Time */ 64 int sdrtt; /* Ave mean deviation of RTT */ 65 fsid_t fsid; /* Fsid for mount point */ 66 struct timeval tstamp; /* Timestamp of log entry */ 67 } rttl[NFSRTTLOGSIZ]; 68 }; 69 70 /* 71 * And definitions for server side performance monitor. 72 * The log organization is the same as above except it is filled in at the 73 * time the server sends the rpc reply. 74 */ 75 76 /* 77 * Bits for the flags field. 78 */ 79 #define DRT_NQNFS 0x01 /* Rpc used Nqnfs protocol */ 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 84 /* 85 * Server log structure 86 * NB: ipadr == INADDR_ANY indicates a client using a non IP protocol. 87 * (ISO perhaps?) 88 */ 89 struct nfsdrt { 90 int pos; /* Position of next log entry */ 91 struct drt { 92 int flag; /* Bits as defined above */ 93 int proc; /* NFS procedure number */ 94 u_long ipadr; /* IP address of client */ 95 int resptime; /* Response time (usec) */ 96 struct timeval tstamp; /* Timestamp of log entry */ 97 } drt[NFSRTTLOGSIZ]; 98 }; 99