ld_mlx.c revision 1.1.2.2
1 /* $NetBSD: ld_mlx.c,v 1.1.2.2 2001/02/11 19:15:32 bouyer Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Andrew Doran. 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 /* 40 * Mylex DAC960 front-end for ld(4) driver. 41 */ 42 43 #include "rnd.h" 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/device.h> 49 #include <sys/buf.h> 50 #include <sys/endian.h> 51 #include <sys/dkio.h> 52 #include <sys/disk.h> 53 #if NRND > 0 54 #include <sys/rnd.h> 55 #endif 56 57 #include <machine/vmparam.h> 58 #include <machine/bus.h> 59 60 #include <dev/ldvar.h> 61 62 #include <dev/ic/mlxreg.h> 63 #include <dev/ic/mlxio.h> 64 #include <dev/ic/mlxvar.h> 65 66 struct ld_mlx_softc { 67 struct ld_softc sc_ld; 68 int sc_hwunit; 69 }; 70 71 static void ld_mlx_attach(struct device *, struct device *, void *); 72 static int ld_mlx_detach(struct device *, int); 73 static int ld_mlx_dobio(struct ld_mlx_softc *, void *, int, int, int, 74 struct buf *); 75 static int ld_mlx_dump(struct ld_softc *, void *, int, int); 76 static void ld_mlx_handler(struct mlx_ccb *); 77 static int ld_mlx_match(struct device *, struct cfdata *, void *); 78 static int ld_mlx_start(struct ld_softc *, struct buf *); 79 80 struct cfattach ld_mlx_ca = { 81 sizeof(struct ld_mlx_softc), 82 ld_mlx_match, 83 ld_mlx_attach, 84 ld_mlx_detach 85 }; 86 87 static int 88 ld_mlx_match(struct device *parent, struct cfdata *match, void *aux) 89 { 90 91 return (1); 92 } 93 94 static void 95 ld_mlx_attach(struct device *parent, struct device *self, void *aux) 96 { 97 struct mlx_attach_args *mlxa; 98 struct ld_mlx_softc *sc; 99 struct ld_softc *ld; 100 struct mlx_softc *mlx; 101 struct mlx_sysdrive *ms; 102 const char *statestr; 103 104 sc = (struct ld_mlx_softc *)self; 105 ld = &sc->sc_ld; 106 mlx = (struct mlx_softc *)parent; 107 mlxa = aux; 108 ms = &mlx->mlx_sysdrive[mlxa->mlxa_unit]; 109 110 sc->sc_hwunit = mlxa->mlxa_unit; 111 ld->sc_maxxfer = MLX_MAX_XFER; 112 ld->sc_secsize = MLX_SECTOR_SIZE; 113 ld->sc_maxqueuecnt = 1; 114 ld->sc_start = ld_mlx_start; 115 ld->sc_dump = ld_mlx_dump; 116 117 /* 118 * Build synthetic geometry. 119 */ 120 ld->sc_secperunit = ms->ms_size; 121 122 if (ld->sc_secperunit > 0x200000) { 123 ld->sc_nheads = 255; 124 ld->sc_nsectors = 63; 125 ld->sc_ncylinders = ms->ms_size / (255 * 63); 126 } else { 127 ld->sc_nheads = 128; 128 ld->sc_nsectors = 32; 129 ld->sc_ncylinders = ms->ms_size / (128 * 32); 130 } 131 132 /* 133 * Report on current status, and attach to the ld driver proper. 134 */ 135 switch (ms->ms_state) { 136 case MLX_SYSD_ONLINE: 137 statestr = "online"; 138 ld->sc_flags = LDF_ENABLED; 139 break; 140 141 case MLX_SYSD_CRITICAL: 142 statestr = "critical"; 143 ld->sc_flags = LDF_ENABLED; 144 break; 145 146 case MLX_SYSD_OFFLINE: 147 statestr = "offline"; 148 break; 149 150 default: 151 statestr = "state unknown"; 152 break; 153 } 154 155 if (ms->ms_raidlevel == MLX_SYS_DRV_JBOD) 156 printf(": JBOD, %s\n", statestr); 157 else 158 printf(": RAID%d, %s\n", ms->ms_raidlevel, statestr); 159 160 ldattach(ld); 161 } 162 163 static int 164 ld_mlx_detach(struct device *dv, int flags) 165 { 166 int rv; 167 168 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 169 return (rv); 170 ldenddetach((struct ld_softc *)dv); 171 mlx_flush((struct mlx_softc *)dv->dv_parent, 1); 172 173 return (0); 174 } 175 176 static int 177 ld_mlx_dobio(struct ld_mlx_softc *sc, void *data, int datasize, int blkno, 178 int dowrite, struct buf *bp) 179 { 180 struct mlx_ccb *mc; 181 struct mlx_softc *mlx; 182 int s, rv; 183 bus_addr_t sgphys; 184 185 mlx = (struct mlx_softc *)sc->sc_ld.sc_dv.dv_parent; 186 187 if ((rv = mlx_ccb_alloc(mlx, &mc, bp == NULL)) != 0) 188 return (rv); 189 190 /* Map the data transfer. */ 191 rv = mlx_ccb_map(mlx, mc, data, datasize, 192 dowrite ? MC_XFER_OUT : MC_XFER_IN); 193 if (rv != 0) { 194 mlx_ccb_free(mlx, mc); 195 return (rv); 196 } 197 198 /* Build the command. */ 199 sgphys = mlx->mlx_sgls_paddr + (MLX_SGL_SIZE * mc->mc_ident); 200 datasize /= MLX_SECTOR_SIZE; 201 202 if (mlx->mlx_iftype == 2) 203 mlx_make_type1(mc, 204 dowrite ? MLX_CMD_WRITESG_OLD : MLX_CMD_READSG_OLD, 205 datasize & 0xff, blkno, sc->sc_hwunit, sgphys, 206 mc->mc_nsgent); 207 else 208 mlx_make_type5(mc, 209 dowrite ? MLX_CMD_WRITESG : MLX_CMD_READSG, 210 datasize & 0xff, 211 (sc->sc_hwunit << 3) | ((datasize >> 8) & 0x07), 212 blkno, sgphys, mc->mc_nsgent); 213 214 if (bp == NULL) { 215 s = splbio(); 216 rv = mlx_ccb_poll(mlx, mc, 10000); 217 mlx_ccb_unmap(mlx, mc); 218 mlx_ccb_free(mlx, mc); 219 splx(s); 220 } else { 221 mc->mc_mx.mx_handler = ld_mlx_handler; 222 mc->mc_mx.mx_context = bp; 223 mc->mc_mx.mx_dv = &sc->sc_ld.sc_dv; 224 mlx_ccb_enqueue(mlx, mc); 225 rv = 0; 226 } 227 228 return (rv); 229 } 230 231 static int 232 ld_mlx_start(struct ld_softc *ld, struct buf *bp) 233 { 234 235 return (ld_mlx_dobio((struct ld_mlx_softc *)ld, bp->b_data, 236 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 237 } 238 239 static void 240 ld_mlx_handler(struct mlx_ccb *mc) 241 { 242 struct buf *bp; 243 struct mlx_context *mx; 244 struct ld_mlx_softc *sc; 245 struct mlx_softc *mlx; 246 247 mx = &mc->mc_mx; 248 bp = mx->mx_context; 249 sc = (struct ld_mlx_softc *)mx->mx_dv; 250 mlx = (struct mlx_softc *)sc->sc_ld.sc_dv.dv_parent; 251 252 if (mc->mc_status != MLX_STATUS_OK) { 253 bp->b_flags |= B_ERROR; 254 bp->b_error = EIO; 255 bp->b_resid = bp->b_bcount; 256 257 if (mc->mc_status == MLX_STATUS_RDWROFFLINE) 258 printf("%s: drive offline\n", 259 sc->sc_ld.sc_dv.dv_xname); 260 else 261 printf("%s: I/O error - %s\n", 262 sc->sc_ld.sc_dv.dv_xname, 263 mlx_ccb_diagnose(mc)); 264 } else 265 bp->b_resid = 0; 266 267 mlx_ccb_unmap(mlx, mc); 268 mlx_ccb_free(mlx, mc); 269 lddone(&sc->sc_ld, bp); 270 } 271 272 static int 273 ld_mlx_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 274 { 275 276 return (ld_mlx_dobio((struct ld_mlx_softc *)ld, data, 277 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 278 } 279
Indexes created Fri Oct 03 02:09:57 GMT 2025