1 /* $NetBSD: ld_icp.c,v 1.2 2002/05/31 17:34:08 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 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 * ICP-Vortex "GDT" front-end for ld(4) driver. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: ld_icp.c,v 1.2 2002/05/31 17:34:08 thorpej Exp $"); 45 46 #include "rnd.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/kernel.h> 51 #include <sys/device.h> 52 #include <sys/buf.h> 53 #include <sys/endian.h> 54 #include <sys/dkio.h> 55 #include <sys/disk.h> 56 #if NRND > 0 57 #include <sys/rnd.h> 58 #endif 59 60 #include <uvm/uvm_extern.h> 61 62 #include <machine/bus.h> 63 64 #include <dev/ldvar.h> 65 66 #include <dev/ic/icpreg.h> 67 #include <dev/ic/icpvar.h> 68 69 struct ld_icp_softc { 70 struct ld_softc sc_ld; 71 int sc_hwunit; 72 }; 73 74 void ld_icp_attach(struct device *, struct device *, void *); 75 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 76 struct buf *); 77 int ld_icp_dump(struct ld_softc *, void *, int, int); 78 int ld_icp_flush(struct ld_softc *); 79 void ld_icp_intr(struct icp_ccb *); 80 int ld_icp_match(struct device *, struct cfdata *, void *); 81 int ld_icp_start(struct ld_softc *, struct buf *); 82 83 struct cfattach ld_icp_ca = { 84 sizeof(struct ld_icp_softc), ld_icp_match, ld_icp_attach, 85 }; 86 87 int 88 ld_icp_match(struct device *parent, struct cfdata *match, void *aux) 89 { 90 struct icp_attach_args *icpa; 91 92 icpa = aux; 93 94 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 95 } 96 97 void 98 ld_icp_attach(struct device *parent, struct device *self, void *aux) 99 { 100 struct icp_attach_args *icpa; 101 struct ld_icp_softc *sc; 102 struct ld_softc *ld; 103 struct icp_softc *icp; 104 struct icp_cachedrv *cd; 105 struct icp_cdevinfo *cdi; 106 const char *str; 107 int t; 108 109 sc = (struct ld_icp_softc *)self; 110 ld = &sc->sc_ld; 111 icp = (struct icp_softc *)parent; 112 icpa = aux; 113 cd = &icp->icp_cdr[icpa->icpa_unit]; 114 115 sc->sc_hwunit = icpa->icpa_unit; 116 ld->sc_maxxfer = ICP_MAX_XFER; 117 ld->sc_secsize = ICP_SECTOR_SIZE; 118 ld->sc_start = ld_icp_start; 119 ld->sc_dump = ld_icp_dump; 120 ld->sc_flush = ld_icp_flush; 121 ld->sc_secperunit = cd->cd_size; 122 ld->sc_flags = LDF_ENABLED; 123 ld->sc_maxqueuecnt = icp->icp_openings; 124 125 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 126 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 127 printf(": unable to retrieve device info\n"); 128 ld->sc_flags = LDF_ENABLED; 129 goto out; 130 } 131 cdi = (struct icp_cdevinfo *)icp->icp_scr; 132 133 printf(": <%.8s>, ", cdi->ld_name); 134 t = le32toh(cdi->ld_dtype) >> 16; 135 136 /* 137 * Print device type. 138 */ 139 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 140 str = "RAID-1"; 141 else if (t == 0) 142 str = "JBOD"; 143 else if (t == 1) 144 str = "RAID-0"; 145 else if (t == 2) 146 str = "Chain"; 147 else 148 str = "unknown type"; 149 150 printf("type: %s, ", str); 151 152 /* 153 * Print device status. 154 */ 155 if (t > 2) 156 str = "missing"; 157 else if ((cdi->ld_error & 1) != 0) { 158 str = "fault"; 159 ld->sc_flags = LDF_ENABLED; 160 } else if ((cdi->ld_error & 2) != 0) 161 str = "invalid"; 162 else { 163 str = "optimal"; 164 ld->sc_flags = LDF_ENABLED; 165 } 166 167 printf("status: %s\n", str); 168 169 out: 170 ldattach(ld); 171 } 172 173 int 174 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 175 int dowrite, struct buf *bp) 176 { 177 struct icp_cachecmd *cc; 178 struct icp_ccb *ic; 179 struct icp_softc *icp; 180 int s, rv; 181 182 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 183 184 /* 185 * Allocate a command control block. 186 */ 187 ic = icp_ccb_alloc(icp); 188 189 /* 190 * Map the data transfer. 191 */ 192 cc = &ic->ic_cmd.cmd_packet.cc; 193 ic->ic_sg = cc->cc_sg; 194 ic->ic_service = ICP_CACHESERVICE; 195 196 rv = icp_ccb_map(icp, ic, data, datasize, 197 dowrite ? IC_XFER_OUT : IC_XFER_IN); 198 if (rv != 0) { 199 icp_ccb_free(icp, ic); 200 return (rv); 201 } 202 203 /* 204 * Build the command. 205 */ 206 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 207 cc->cc_deviceno = htole16(sc->sc_hwunit); 208 cc->cc_blockno = htole32(blkno); 209 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 210 cc->cc_addr = ~0; /* scatter gather */ 211 cc->cc_nsgent = htole32(ic->ic_nsgent); 212 213 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 214 ic->ic_nsgent * sizeof(*ic->ic_sg); 215 216 /* 217 * Fire it off to the controller. 218 */ 219 if (bp == NULL) { 220 s = splbio(); 221 rv = icp_ccb_poll(icp, ic, 10000); 222 icp_ccb_unmap(icp, ic); 223 icp_ccb_free(icp, ic); 224 splx(s); 225 } else { 226 ic->ic_intr = ld_icp_intr; 227 ic->ic_context = bp; 228 ic->ic_dv = &sc->sc_ld.sc_dv; 229 icp_ccb_enqueue(icp, ic); 230 } 231 232 return (rv); 233 } 234 235 int 236 ld_icp_start(struct ld_softc *ld, struct buf *bp) 237 { 238 239 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 240 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 241 } 242 243 int 244 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 245 { 246 247 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 248 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 249 } 250 251 int 252 ld_icp_flush(struct ld_softc *ld) 253 { 254 struct ld_icp_softc *sc; 255 struct icp_softc *icp; 256 struct icp_cachecmd *cc; 257 struct icp_ccb *ic; 258 int rv; 259 260 sc = (struct ld_icp_softc *)ld; 261 icp = (struct icp_softc *)ld->sc_dv.dv_parent; 262 263 ic = icp_ccb_alloc(icp); 264 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 265 266 cc = &ic->ic_cmd.cmd_packet.cc; 267 cc->cc_deviceno = htole16(sc->sc_hwunit); 268 cc->cc_blockno = htole32(1); 269 cc->cc_blockcnt = 0; 270 cc->cc_addr = 0; 271 cc->cc_nsgent = 0; 272 273 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 274 ic->ic_service = ICP_CACHESERVICE; 275 276 rv = icp_ccb_wait(icp, ic, 30000); 277 icp_ccb_free(icp, ic); 278 279 return (rv); 280 } 281 282 void 283 ld_icp_intr(struct icp_ccb *ic) 284 { 285 struct buf *bp; 286 struct ld_icp_softc *sc; 287 struct icp_softc *icp; 288 289 bp = ic->ic_context; 290 sc = (struct ld_icp_softc *)ic->ic_dv; 291 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 292 293 if (ic->ic_status != ICP_S_OK) { 294 printf("%s: request failed; status=0x%04x\n", 295 ic->ic_dv->dv_xname, ic->ic_status); 296 bp->b_flags |= B_ERROR; 297 bp->b_error = EIO; 298 bp->b_resid = bp->b_bcount; 299 } else 300 bp->b_resid = 0; 301 302 icp_ccb_unmap(icp, ic); 303 icp_ccb_free(icp, ic); 304 lddone(&sc->sc_ld, bp); 305 } 306