Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/pms/RefTisa/tisa/sassata/common/tdlist.h
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1 /******************************************************************************* 2 *Copyright (c) 2014 PMC-Sierra, Inc. All rights reserved. 3 * 4 *Redistribution and use in source and binary forms, with or without modification, are permitted provided 5 *that the following conditions are met: 6 *1. Redistributions of source code must retain the above copyright notice, this list of conditions and the 7 *following disclaimer. 8 *2. Redistributions in binary form must reproduce the above copyright notice, 9 *this list of conditions and the following disclaimer in the documentation and/or other materials provided 10 *with the distribution. 11 * 12 *THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED 13 *WARRANTIES,INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 14 *FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 15 *FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 16 *NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 17 *BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 18 *LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 19 *SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE 20 * 21 * $FreeBSD$ 22 * 23 ********************************************************************************/ 24 /*******************************************************************************/ 25 /** \file 26 * 27 * The file defines list data structures for SAS/SATA TD layer 28 * 29 */ 30 31 #ifndef __TDLIST_H__ 32 #define __TDLIST_H__ 33 34 35 typedef struct tdList_s tdList_t; 36 37 struct tdList_s { 38 tdList_t *flink; 39 tdList_t *blink; 40 }; 41 42 #define TDLIST_NEXT_ENTRY(ptr, type, member) \ 43 container_of((ptr)->flink, type, member) 44 45 #define TDLIST_INIT_HDR(hdr) \ 46 do { \ 47 ((tdList_t *)(hdr))->flink = (tdList_t *)(hdr); \ 48 ((tdList_t *)(hdr))->blink = (tdList_t *)(hdr); \ 49 } while (0) 50 51 #define TDLIST_INIT_ELEMENT(hdr) \ 52 do { \ 53 ((tdList_t *)(hdr))->flink = (tdList_t *)agNULL; \ 54 ((tdList_t *)(hdr))->blink = (tdList_t *)agNULL; \ 55 } while (0) 56 57 #define TDLIST_ENQUEUE_AT_HEAD(toAddHdr,listHdr) \ 58 do { \ 59 ((tdList_t *)(toAddHdr))->flink = ((tdList_t *)(listHdr))->flink; \ 60 ((tdList_t *)(toAddHdr))->blink = (tdList_t *)(listHdr) ; \ 61 ((tdList_t *)(listHdr))->flink->blink = (tdList_t *)(toAddHdr); \ 62 ((tdList_t *)(listHdr))->flink = (tdList_t *)(toAddHdr); \ 63 } while (0) 64 65 #define TDLIST_ENQUEUE_AT_TAIL(toAddHdr,listHdr) \ 66 do { \ 67 ((tdList_t *)(toAddHdr))->flink = (tdList_t *)(listHdr); \ 68 ((tdList_t *)(toAddHdr))->blink = ((tdList_t *)(listHdr))->blink; \ 69 ((tdList_t *)(listHdr))->blink->flink = (tdList_t *)(toAddHdr); \ 70 ((tdList_t *)(listHdr))->blink = (tdList_t *)(toAddHdr); \ 71 } while (0) 72 73 #define TDLIST_EMPTY(listHdr) \ 74 (((tdList_t *)(listHdr))->flink == ((tdList_t *)(listHdr))) 75 76 #define TDLIST_NOT_EMPTY(listHdr) \ 77 (!TDLIST_EMPTY(listHdr)) 78 79 #define TDLIST_DEQUEUE_THIS(hdr) \ 80 do { \ 81 ((tdList_t *)(hdr))->blink->flink = ((tdList_t *)(hdr))->flink; \ 82 ((tdList_t *)(hdr))->flink->blink = ((tdList_t *)(hdr))->blink; \ 83 ((tdList_t *)(hdr))->flink = ((tdList_t *)(hdr))->blink = agNULL; \ 84 } while (0) 85 86 #define TDLIST_DEQUEUE_FROM_HEAD_FAST(atHeadHdr,listHdr) \ 87 do { \ 88 *((tdList_t **)(atHeadHdr)) = ((tdList_t *)(listHdr))->flink; \ 89 (*((tdList_t **)(atHeadHdr)))->flink->blink = (tdList_t *)(listHdr); \ 90 ((tdList_t *)(listHdr))->flink = (*(tdList_t **)(atHeadHdr))->flink; \ 91 } while (0) 92 93 #define TDLIST_DEQUEUE_FROM_HEAD(atHeadHdr,listHdr) \ 94 do { \ 95 if (TDLIST_NOT_EMPTY((listHdr))) \ 96 { \ 97 TDLIST_DEQUEUE_FROM_HEAD_FAST(atHeadHdr,listHdr); \ 98 } \ 99 else \ 100 { \ 101 (*((tdList_t **)(atHeadHdr))) = (tdList_t *)agNULL; \ 102 } \ 103 } while (0) 104 105 #define TDLIST_DEQUEUE_FROM_TAIL_FAST(atTailHdr,listHdr) \ 106 do { \ 107 (*((tdList_t **)(atTailHdr))) = ((tdList_t *)(listHdr))->blink; \ 108 (*((tdList_t **)(atTailHdr)))->blink->flink = (tdList_t *)(listHdr); \ 109 ((tdList_t *)(listHdr))->blink = (*((tdList_t **)(atTailHdr)))->blink; \ 110 } while (0) 111 112 #define TDLIST_DEQUEUE_FROM_TAIL(atTailHdr,listHdr) \ 113 do { \ 114 if (TDLIST_NOT_EMPTY((listHdr))) \ 115 { \ 116 TDLIST_DEQUEUE_FROM_TAIL_FAST(atTailHdr,listHdr); \ 117 } \ 118 else \ 119 { \ 120 (*((tdList_t **)(atTailHdr))) = (tdList_t *)agNULL; \ 121 } \ 122 } while (0) 123 124 #define TDLIST_ENQUEUE_LIST_AT_TAIL_FAST(toAddListHdr, listHdr) \ 125 do { \ 126 ((tdList_t *)toAddListHdr)->blink->flink = ((tdList_t *)listHdr); \ 127 ((tdList_t *)toAddListHdr)->flink->blink = ((tdList_t *)listHdr)->blink; \ 128 ((tdList_t *)listHdr)->blink->flink = ((tdList_t *)toAddListHdr)->flink; \ 129 ((tdList_t *)listHdr)->blink = ((tdList_t *)toAddListHdr)->blink; \ 130 TDLIST_INIT_HDR(toAddListHdr); \ 131 } while (0) 132 133 #define TDLIST_ENQUEUE_LIST_AT_TAIL(toAddListHdr, listHdr) \ 134 do { \ 135 if (TDLIST_NOT_EMPTY(toAddListHdr)) \ 136 { \ 137 TDLIST_ENQUEUE_LIST_AT_TAIL_FAST(toAddListHdr, listHdr); \ 138 } \ 139 } while (0) 140 141 #define TDLIST_ENQUEUE_LIST_AT_HEAD_FAST(toAddListHdr, listHdr) \ 142 do { \ 143 ((tdList_t *)toAddListHdr)->blink->flink = ((tdList_t *)listHdr)->flink; \ 144 ((tdList_t *)toAddListHdr)->flink->blink = ((tdList_t *)listHdr); \ 145 ((tdList_t *)listHdr)->flink->blink = ((tdList_t *)toAddListHdr)->blink; \ 146 ((tdList_t *)listHdr)->flink = ((tdList_t *)toAddListHdr)->flink; \ 147 TDLIST_INIT_HDR(toAddListHdr); \ 148 } while (0) 149 150 #define TDLIST_ENQUEUE_LIST_AT_HEAD(toAddListHdr, listHdr) \ 151 do { \ 152 if (TDLIST_NOT_EMPTY(toAddListHdr)) \ 153 { \ 154 TDLIST_ENQUEUE_LIST_AT_HEAD_FAST(toAddListHdr, listHdr); \ 155 } \ 156 } while (0) 157 158 #define TD_FIELD_OFFSET(baseType,fieldName) \ 159 ((bit32)((bitptr)(&(((baseType *)0)->fieldName)))) 160 161 #define TDLIST_OBJECT_BASE(baseType,fieldName,fieldPtr) \ 162 (void *)fieldPtr == (void *)0 ? (baseType *)0 : \ 163 ((baseType *)((bit8 *)(fieldPtr) - ((bitptr)(&(((baseType *)0)->fieldName))))) 164 165 166 167 #endif /* __TDLIST_H__ */ 168
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