25eee848cd
This allows to avoid extra network traffic when copying files on NTFS iSCSI disks within one storage host by drag'n'dropping them in Windows Explorer of Windows 8/2012. It should also accelerate Hyper-V VM operations, etc. MFC after: 2 weeks Sponsored by: iXsystems, Inc.
79 lines
4.0 KiB
C
79 lines
4.0 KiB
C
/*-
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* Copyright (c) 2003 Silicon Graphics International Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_ser_table.c#1 $
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* $FreeBSD$
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*/
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/*
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* CAM Target Layer command serialization table.
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*
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* Author: Kim Le
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*/
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/****************************************************************************/
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/* TABLE ctlSerTbl */
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/* */
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/* The matrix which drives the serialization algorithm. The major index */
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/* (the first) into this table is the command being checked and the minor */
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/* index is the command against which the first command is being checked. */
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/* i.e., the major index (row) command is ahead of the minor index command */
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/* (column) in the queue. This allows the code to optimize by capturing */
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/* the result of the first indexing operation into a pointer. */
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/* */
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/* Whenever a new value is added to the IDX_T type, this matrix must be */
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/* expanded by one row AND one column -- Because of this, some effort */
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/* should be made to re-use the indexes whenever possible. */
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/* */
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/****************************************************************************/
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#define sK CTL_SER_SKIP /* Skip */
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#define pS CTL_SER_PASS /* pS */
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#define bK CTL_SER_BLOCK /* Blocked */
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#define xT CTL_SER_EXTENT /* Extent check */
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static ctl_serialize_action
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ctl_serialize_table[CTL_SERIDX_COUNT][CTL_SERIDX_COUNT] = {
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/**>IDX_ :: 2nd:TUR RD WRT UNM MDSN MDSL RQSN INQ RDCP RES LSNS FMT STR*/
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/*TUR */{ pS, pS, pS, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK},
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/*READ */{ pS, pS, xT, bK, bK, bK, bK, pS, pS, bK, pS, bK, bK},
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/*WRITE */{ pS, xT, xT, bK, bK, bK, bK, pS, pS, bK, pS, bK, bK},
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/*UNMAP */{ pS, bK, bK, pS, bK, bK, bK, pS, pS, bK, pS, bK, bK},
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/*MD_SNS */{ bK, bK, bK, bK, pS, bK, bK, pS, pS, bK, pS, bK, bK},
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/*MD_SEL */{ bK, bK, bK, bK, bK, bK, bK, pS, pS, bK, pS, bK, bK},
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/*RQ_SNS */{ pS, pS, pS, pS, pS, pS, bK, pS, pS, bK, pS, bK, bK},
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/*INQ */{ pS, pS, pS, pS, pS, pS, bK, pS, pS, pS, pS, bK, bK},
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/*RD_CAP */{ pS, pS, pS, pS, pS, pS, bK, pS, pS, pS, pS, bK, pS},
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/*RES */{ bK, bK, bK, bK, bK, bK, bK, pS, bK, bK, bK, bK, bK},
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/*LOG_SNS */{ pS, pS, pS, pS, pS, bK, bK, pS, pS, bK, pS, bK, bK},
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/*FORMAT */{ pS, bK, bK, bK, bK, bK, pS, pS, bK, bK, bK, bK, bK},
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/*START */{ bK, bK, bK, bK, bK, bK, bK, pS, bK, bK, bK, bK, bK},
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};
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