iris_disk.c revision 1.1.2.2
1 1.1.2.2 pgoyette /* $NetBSD: iris_disk.c,v 1.1.2.2 2019/01/18 08:50:23 pgoyette Exp $ */ 2 1.1.2.2 pgoyette 3 1.1.2.2 pgoyette /* 4 1.1.2.2 pgoyette * Copyright (c) 2018 Naruaki Etomi 5 1.1.2.2 pgoyette * All rights reserved. 6 1.1.2.2 pgoyette * 7 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 9 1.1.2.2 pgoyette * are met: 10 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 15 1.1.2.2 pgoyette * 16 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 1.1.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 1.1.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 1.1.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 1.1.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 1.1.2.2 pgoyette * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 1.1.2.2 pgoyette * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 1.1.2.2 pgoyette * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.1.2.2 pgoyette * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 1.1.2.2 pgoyette * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.1.2.2 pgoyette */ 27 1.1.2.2 pgoyette 28 1.1.2.2 pgoyette /* 29 1.1.2.2 pgoyette * Copyright (c) 1988 University of Utah. 30 1.1.2.2 pgoyette * Copyright (c) 1990, 1993 31 1.1.2.2 pgoyette * The Regents of the University of California. All rights reserved. 32 1.1.2.2 pgoyette * 33 1.1.2.2 pgoyette * This code is derived from software contributed to Berkeley by 34 1.1.2.2 pgoyette * Van Jacobson of Lawrence Berkeley Laboratory and the Systems 35 1.1.2.2 pgoyette * Programming Group of the University of Utah Computer Science Department. 36 1.1.2.2 pgoyette * 37 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 38 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 39 1.1.2.2 pgoyette * are met: 40 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 41 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 42 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 43 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 44 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 45 1.1.2.2 pgoyette * 3. Neither the name of the University nor the names of its contributors 46 1.1.2.2 pgoyette * may be used to endorse or promote products derived from this software 47 1.1.2.2 pgoyette * without specific prior written permission. 48 1.1.2.2 pgoyette * 49 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 50 1.1.2.2 pgoyette * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 51 1.1.2.2 pgoyette * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 52 1.1.2.2 pgoyette * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 53 1.1.2.2 pgoyette * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 54 1.1.2.2 pgoyette * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 55 1.1.2.2 pgoyette * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 56 1.1.2.2 pgoyette * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 57 1.1.2.2 pgoyette * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 58 1.1.2.2 pgoyette * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 59 1.1.2.2 pgoyette * SUCH DAMAGE. 60 1.1.2.2 pgoyette * 61 1.1.2.2 pgoyette * from: Utah $Hdr: sd.c 1.9 92/12/21$ 62 1.1.2.2 pgoyette * 63 1.1.2.2 pgoyette * @(#)sd.c 8.1 (Berkeley) 6/10/93 64 1.1.2.2 pgoyette */ 65 1.1.2.2 pgoyette 66 1.1.2.2 pgoyette /* 67 1.1.2.2 pgoyette * Silicon Graphics "IRIS" series MIPS processors machine bootloader. 68 1.1.2.2 pgoyette * Disk I/O API routine. 69 1.1.2.2 pgoyette * Most of the following was adapted from /sys/arch/hp300/stand/common/sd.c. 70 1.1.2.2 pgoyette * NetBSD: sd.c,v 1.11 2011/07/17 20:54:40 joerg Exp 71 1.1.2.2 pgoyette */ 72 1.1.2.2 pgoyette 73 1.1.2.2 pgoyette #include <lib/libsa/stand.h> 74 1.1.2.2 pgoyette 75 1.1.2.2 pgoyette #include <sys/param.h> 76 1.1.2.2 pgoyette #include <sys/disklabel.h> 77 1.1.2.2 pgoyette 78 1.1.2.2 pgoyette #ifndef INDIGO_R3K_MODE 79 1.1.2.2 pgoyette #include <dev/arcbios/arcbios.h> 80 1.1.2.2 pgoyette #endif 81 1.1.2.2 pgoyette 82 1.1.2.2 pgoyette #include "disk.h" 83 1.1.2.2 pgoyette 84 1.1.2.2 pgoyette #include "iris_machdep.h" 85 1.1.2.2 pgoyette #include "iris_scsivar.h" 86 1.1.2.2 pgoyette 87 1.1.2.2 pgoyette struct disk_softc { 88 1.1.2.2 pgoyette int sc_part; /* disk partition number */ 89 1.1.2.2 pgoyette char sc_retry; 90 1.1.2.2 pgoyette char sc_alive; 91 1.1.2.2 pgoyette short sc_blkshift; 92 1.1.2.2 pgoyette struct disklabel sc_label; /* disk label for this disk */ 93 1.1.2.2 pgoyette }; 94 1.1.2.2 pgoyette 95 1.1.2.2 pgoyette static int diskinit(struct disk_softc *); 96 1.1.2.2 pgoyette 97 1.1.2.2 pgoyette #define DISKRETRY 2 98 1.1.2.2 pgoyette 99 1.1.2.2 pgoyette int 100 1.1.2.2 pgoyette diskstrategy(void *devdata, int rw, daddr_t bn, size_t reqcnt, void *addr, 101 1.1.2.2 pgoyette size_t *cnt) 102 1.1.2.2 pgoyette { 103 1.1.2.2 pgoyette struct disk_softc *sc; 104 1.1.2.2 pgoyette struct disklabel *lp; 105 1.1.2.2 pgoyette uint8_t *buf; 106 1.1.2.2 pgoyette daddr_t blk; 107 1.1.2.2 pgoyette u_int nblk; 108 1.1.2.2 pgoyette int stat; 109 1.1.2.2 pgoyette 110 1.1.2.2 pgoyette sc = devdata; 111 1.1.2.2 pgoyette 112 1.1.2.2 pgoyette buf = addr; 113 1.1.2.2 pgoyette lp = &sc->sc_label; 114 1.1.2.2 pgoyette blk = bn + (lp->d_partitions[sc->sc_part].p_offset >> sc->sc_blkshift); 115 1.1.2.2 pgoyette nblk = reqcnt >> sc->sc_blkshift; 116 1.1.2.2 pgoyette 117 1.1.2.2 pgoyette sc->sc_retry = 0; 118 1.1.2.2 pgoyette 119 1.1.2.2 pgoyette retry: 120 1.1.2.2 pgoyette stat = scsi_read(buf, reqcnt, blk, nblk); 121 1.1.2.2 pgoyette 122 1.1.2.2 pgoyette if (stat) { 123 1.1.2.2 pgoyette DELAY(1000000); 124 1.1.2.2 pgoyette if (++sc->sc_retry > DISKRETRY) { 125 1.1.2.2 pgoyette return EIO; 126 1.1.2.2 pgoyette } 127 1.1.2.2 pgoyette printf("diskstrategy retry\n"); 128 1.1.2.2 pgoyette goto retry; 129 1.1.2.2 pgoyette } 130 1.1.2.2 pgoyette 131 1.1.2.2 pgoyette *cnt = reqcnt; 132 1.1.2.2 pgoyette 133 1.1.2.2 pgoyette return 0; 134 1.1.2.2 pgoyette } 135 1.1.2.2 pgoyette 136 1.1.2.2 pgoyette static int 137 1.1.2.2 pgoyette diskinit(struct disk_softc *sc) 138 1.1.2.2 pgoyette { 139 1.1.2.2 pgoyette uint8_t capbuf[2]; 140 1.1.2.2 pgoyette 141 1.1.2.2 pgoyette uint8_t stat; 142 1.1.2.2 pgoyette 143 1.1.2.2 pgoyette stat = scsi_test_unit_rdy(); 144 1.1.2.2 pgoyette 145 1.1.2.2 pgoyette if (stat != 0) { 146 1.1.2.2 pgoyette /* drive may be doing RTZ - wait a bit */ 147 1.1.2.2 pgoyette DELAY(1000000); 148 1.1.2.2 pgoyette stat = scsi_test_unit_rdy(); 149 1.1.2.2 pgoyette 150 1.1.2.2 pgoyette if (stat != 0) { 151 1.1.2.2 pgoyette printf("diskinit abort!\n"); 152 1.1.2.2 pgoyette printf("Boot failed! Halting...\n"); 153 1.1.2.2 pgoyette reboot(); 154 1.1.2.2 pgoyette } 155 1.1.2.2 pgoyette } 156 1.1.2.2 pgoyette 157 1.1.2.2 pgoyette /* 158 1.1.2.2 pgoyette * try to get the drive block size. 159 1.1.2.2 pgoyette */ 160 1.1.2.2 pgoyette capbuf[0] = 0; 161 1.1.2.2 pgoyette capbuf[1] = 0; 162 1.1.2.2 pgoyette 163 1.1.2.2 pgoyette stat = scsi_read_capacity((uint8_t *)capbuf, sizeof(capbuf)); 164 1.1.2.2 pgoyette 165 1.1.2.2 pgoyette if (stat == 0) { 166 1.1.2.2 pgoyette if (capbuf[1] > DEV_BSIZE) 167 1.1.2.2 pgoyette for (; capbuf[1] > DEV_BSIZE; capbuf[1] >>= 1) 168 1.1.2.2 pgoyette ++sc->sc_blkshift; 169 1.1.2.2 pgoyette } 170 1.1.2.2 pgoyette 171 1.1.2.2 pgoyette sc->sc_alive = 1; 172 1.1.2.2 pgoyette return 1; 173 1.1.2.2 pgoyette } 174 1.1.2.2 pgoyette 175 1.1.2.2 pgoyette int 176 1.1.2.2 pgoyette diskopen(struct open_file *f, ...) 177 1.1.2.2 pgoyette { 178 1.1.2.2 pgoyette struct disk_softc *sc; 179 1.1.2.2 pgoyette struct disklabel *lp; 180 1.1.2.2 pgoyette size_t cnt; 181 1.1.2.2 pgoyette char *msg, buf[DEV_BSIZE]; 182 1.1.2.2 pgoyette int error; 183 1.1.2.2 pgoyette 184 1.1.2.2 pgoyette cnt = 0; 185 1.1.2.2 pgoyette 186 1.1.2.2 pgoyette sc = alloc(sizeof(struct disk_softc)); 187 1.1.2.2 pgoyette memset(sc, 0, sizeof(struct disk_softc)); 188 1.1.2.2 pgoyette f->f_devdata = (void *)sc; 189 1.1.2.2 pgoyette 190 1.1.2.2 pgoyette sc->sc_part = scsi_part; 191 1.1.2.2 pgoyette 192 1.1.2.2 pgoyette if (sc->sc_alive == 0) { 193 1.1.2.2 pgoyette if (diskinit(sc) == 0) 194 1.1.2.2 pgoyette return ENXIO; 195 1.1.2.2 pgoyette } 196 1.1.2.2 pgoyette 197 1.1.2.2 pgoyette /* try to read disk label and partition table information */ 198 1.1.2.2 pgoyette lp = &sc->sc_label; 199 1.1.2.2 pgoyette lp->d_secsize = DEV_BSIZE; 200 1.1.2.2 pgoyette lp->d_secpercyl = 1; 201 1.1.2.2 pgoyette lp->d_npartitions = MAXPARTITIONS; 202 1.1.2.2 pgoyette lp->d_partitions[scsi_part].p_offset = 0; 203 1.1.2.2 pgoyette lp->d_partitions[scsi_part].p_size = 0x7fffffff; 204 1.1.2.2 pgoyette 205 1.1.2.2 pgoyette error = diskstrategy(sc, F_READ, (daddr_t)LABELSECTOR, DEV_BSIZE, buf, 206 1.1.2.2 pgoyette &cnt); 207 1.1.2.2 pgoyette 208 1.1.2.2 pgoyette if (error || cnt != DEV_BSIZE) { 209 1.1.2.2 pgoyette printf("diskstrategy error...\n"); 210 1.1.2.2 pgoyette dealloc(sc, sizeof(struct disk_softc)); 211 1.1.2.2 pgoyette return ENXIO; 212 1.1.2.2 pgoyette } 213 1.1.2.2 pgoyette 214 1.1.2.2 pgoyette msg = getdisklabel(buf, lp); 215 1.1.2.2 pgoyette 216 1.1.2.2 pgoyette if (msg) { 217 1.1.2.2 pgoyette /* If no label, just assume 0 and return */ 218 1.1.2.2 pgoyette printf("No disklabel...\n"); 219 1.1.2.2 pgoyette reboot(); 220 1.1.2.2 pgoyette } 221 1.1.2.2 pgoyette 222 1.1.2.2 pgoyette return 0; 223 1.1.2.2 pgoyette } 224 1.1.2.2 pgoyette 225 1.1.2.2 pgoyette int 226 1.1.2.2 pgoyette diskclose(struct open_file *f) 227 1.1.2.2 pgoyette { 228 1.1.2.2 pgoyette struct disk_softc *sc = f->f_devdata; 229 1.1.2.2 pgoyette 230 1.1.2.2 pgoyette dealloc(sc, sizeof *sc); 231 1.1.2.2 pgoyette f->f_devdata = NULL; 232 1.1.2.2 pgoyette 233 1.1.2.2 pgoyette return 0; 234 1.1.2.2 pgoyette } 235
Indexes created Thu Oct 02 01:09:59 GMT 2025