1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2003 Silicon Graphics International Corp. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * substantially similar to the "NO WARRANTY" disclaimer below 15 * ("Disclaimer") and any redistribution must be conditioned upon 16 * including a substantially similar Disclaimer requirement for further 17 * binary redistribution. 18 * 19 * NO WARRANTY 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 28 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGES. 31 * 32 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_ser_table.c#1 $ 33 * $FreeBSD$ 34 */ 35 36 /* 37 * CAM Target Layer command serialization table. 38 * 39 * Author: Kim Le 40 */ 41 42 /****************************************************************************/ 43 /* TABLE ctlSerTbl */ 44 /* */ 45 /* The matrix which drives the serialization algorithm. The major index */ 46 /* (the first) into this table is the command being checked and the minor */ 47 /* index is the command against which the first command is being checked. */ 48 /* i.e., the major index (row) command is ahead of the minor index command */ 49 /* (column) in the queue. This allows the code to optimize by capturing */ 50 /* the result of the first indexing operation into a pointer. */ 51 /* */ 52 /* Whenever a new value is added to the IDX_T type, this matrix must be */ 53 /* expanded by one row AND one column -- Because of this, some effort */ 54 /* should be made to re-use the indexes whenever possible. */ 55 /* */ 56 /****************************************************************************/ 57 58 #define sK CTL_SER_SKIP /* Skip */ 59 #define pS CTL_SER_PASS /* Pass */ 60 #define bK CTL_SER_BLOCK /* Blocked */ 61 #define bO CTL_SER_BLOCKOPT /* Optional block */ 62 #define xT CTL_SER_EXTENT /* Extent check */ 63 #define xO CTL_SER_EXTENTOPT /* Optional extent check */ 64 #define xS CTL_SER_EXTENTSEQ /* Sequential extent check */ 65 66 const static ctl_serialize_action 67 ctl_serialize_table[CTL_SERIDX_COUNT][CTL_SERIDX_COUNT] = { 68 /**>IDX_ :: 2nd:TUR RD WRT UNM SYN MDSN MDSL RQSN INQ RDCP RES LSNS FMT STR*/ 69 /*TUR */{ pS, pS, pS, pS, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 70 /*READ */{ pS, xS, xT, bO, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 71 /*WRITE */{ pS, xT, xT, bO, bO, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 72 /*UNMAP */{ pS, xO, xO, pS, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 73 /*SYNC */{ pS, pS, pS, pS, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 74 /*MD_SNS */{ bK, bK, bK, bK, bK, pS, bK, bK, pS, pS, bK, pS, bK, bK}, 75 /*MD_SEL */{ bK, bK, bK, bK, bK, bK, bK, bK, pS, pS, bK, pS, bK, bK}, 76 /*RQ_SNS */{ pS, pS, pS, pS, pS, pS, pS, bK, pS, pS, bK, pS, bK, bK}, 77 /*INQ */{ pS, pS, pS, pS, pS, pS, pS, bK, pS, pS, pS, pS, bK, bK}, 78 /*RD_CAP */{ pS, pS, pS, pS, pS, pS, pS, bK, pS, pS, pS, pS, bK, pS}, 79 /*RES */{ bK, bK, bK, bK, bK, bK, bK, bK, pS, bK, bK, bK, bK, bK}, 80 /*LOG_SNS */{ pS, pS, pS, pS, pS, pS, bK, bK, pS, pS, bK, pS, bK, bK}, 81 /*FORMAT */{ pS, bK, bK, bK, bK, bK, bK, pS, pS, bK, bK, bK, bK, bK}, 82 /*START */{ bK, bK, bK, bK, bK, bK, bK, bK, pS, bK, bK, bK, bK, bK}, 83 }; 84 85