1 /* $NetBSD: rf_netbsd.h,v 1.12 2000/05/28 22:53:49 oster Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Greg Oster; Jason R. Thorpe. 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 NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _RF__RF_NETBSDSTUFF_H_ 40 #define _RF__RF_NETBSDSTUFF_H_ 41 42 #ifdef _KERNEL 43 #include <sys/fcntl.h> 44 #include <sys/systm.h> 45 #include <sys/namei.h> 46 #include <sys/vnode.h> 47 #endif /* _KERNEL */ 48 49 /* The per-component label information that the user can set */ 50 typedef struct RF_ComponentInfo_s { 51 int row; /* the row number of this component */ 52 int column; /* the column number of this component */ 53 int serial_number; /* a user-specified serial number for this 54 RAID set */ 55 } RF_ComponentInfo_t; 56 57 /* The per-component label information */ 58 typedef struct RF_ComponentLabel_s { 59 int version; /* The version of this label. */ 60 int serial_number; /* a user-specified serial number for this 61 RAID set */ 62 int mod_counter; /* modification counter. Changed (usually 63 by incrementing) every time the label 64 is changed */ 65 int row; /* the row number of this component */ 66 int column; /* the column number of this component */ 67 int num_rows; /* number of rows in this RAID set */ 68 int num_columns; /* number of columns in this RAID set */ 69 int clean; /* 1 when clean, 0 when dirty */ 70 int status; /* rf_ds_optimal, rf_ds_dist_spared, whatever. */ 71 /* stuff that will be in version 2 of the label */ 72 int sectPerSU; /* Sectors per Stripe Unit */ 73 int SUsPerPU; /* Stripe Units per Parity Units */ 74 int SUsPerRU; /* Stripe Units per Reconstruction Units */ 75 int parityConfig; /* '0' == RAID0, '1' == RAID1, etc. */ 76 int maxOutstanding; /* maxOutstanding disk requests */ 77 int blockSize; /* size of component block. 78 (disklabel->d_secsize) */ 79 int numBlocks; /* number of blocks on this component. May 80 be smaller than the partition size. */ 81 int partitionSize; /* number of blocks on this *partition*. 82 Must exactly match the partition size 83 from the disklabel. */ 84 int future_use[33]; /* Future expansion */ 85 int autoconfigure; /* automatically configure this RAID set. 86 0 == no, 1 == yes */ 87 int root_partition; /* Use this set as / 88 0 == no, 1 == yes*/ 89 int last_unit; /* last unit number (e.g. 0 for /dev/raid0) 90 of this component. Used for autoconfigure 91 only. */ 92 int config_order; /* 0 .. n. The order in which the component 93 should be auto-configured. E.g. 0 is will 94 done first, (and would become raid0). 95 This may be in conflict with last_unit!!?! */ 96 /* Not currently used. */ 97 int future_use2[44]; /* More future expansion */ 98 } RF_ComponentLabel_t; 99 100 typedef struct RF_SingleComponent_s { 101 int row; 102 int column; 103 char component_name[50]; /* name of the component */ 104 } RF_SingleComponent_t; 105 106 #ifdef _KERNEL 107 108 struct raidcinfo { 109 struct vnode *ci_vp; /* component device's vnode */ 110 dev_t ci_dev; /* component device's dev_t */ 111 RF_ComponentLabel_t ci_label; /* components RAIDframe label */ 112 #if 0 113 size_t ci_size; /* size */ 114 char *ci_path; /* path to component */ 115 size_t ci_pathlen; /* length of component path */ 116 #endif 117 }; 118 119 120 121 /* XXX probably belongs in a different .h file. */ 122 typedef struct RF_AutoConfig_s { 123 char devname[56]; /* the name of this component */ 124 int flag; /* a general-purpose flag */ 125 dev_t dev; /* the device for this component */ 126 struct vnode *vp; /* Mr. Vnode Pointer */ 127 RF_ComponentLabel_t *clabel; /* the label */ 128 struct RF_AutoConfig_s *next; /* the next autoconfig structure 129 in this set. */ 130 } RF_AutoConfig_t; 131 132 typedef struct RF_ConfigSet_s { 133 struct RF_AutoConfig_s *ac; /* all of the autoconfig structures for 134 this config set. */ 135 int rootable; /* Set to 1 if this set can be root */ 136 struct RF_ConfigSet_s *next; 137 } RF_ConfigSet_t; 138 139 #endif /* _KERNEL */ 140 #endif /* _RF__RF_NETBSDSTUFF_H_ */ 141