/* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratories. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)sdtrace.h 8.1 (Berkeley) 6/10/93 * * from: $Header: sdtrace.h,v 1.6 92/12/02 03:53:47 torek Exp $ (LBL) */ /* * SCSI disk command tracing */ #if defined(SDTRACE) || !defined(KERNEL) struct sdtrace { struct timeval time; /* timestamp */ u_int block; /* disk block */ u_int bcount; /* # bytes transferred */ u_char tcode; /* trace code */ u_char target; /* target number */ u_char unit; /* unit number on target */ u_char read; /* read operation */ }; #define T_START 0x01 #define T_MKCDB 0x02 #define T_INTR 0x03 #endif #ifdef SDTRACE /* Allow kernel config to override number of entries */ #ifndef NSDOPBUF #define NSDOPBUF 1024 #endif struct sdtrace sdopbuf[NSDOPBUF]; struct sdtrace *sdopptr = sdopbuf; int nsdopbuf = NSDOPBUF; /* for sdtrace */ u_long sdopcnt; #define SD_TRACE(code, sc, bp) { \ if (++sdopptr >= &sdopbuf[NSDOPBUF]) \ sdopptr = sdopbuf; \ microtime(&sdopptr->time); \ sdopptr->tcode = code; \ sdopptr->read = bp->b_flags & B_READ; \ sdopptr->block = bp->b_blkno; \ sdopptr->bcount = bp->b_bcount; \ sdopptr->target = sc->sc_unit.u_targ; \ sdopptr->unit = sc->sc_unit.u_unit; \ ++sdopcnt; \ } #else #define SD_TRACE(code, sc, bp) { } #endif