ld_icp.c revision 1.8
1 /* $NetBSD: ld_icp.c,v 1.8 2003/06/13 05:57:31 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 1.8 2003/06/13 05:57:31 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_detach(struct device *, int); 76 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 77 struct buf *); 78 int ld_icp_dump(struct ld_softc *, void *, int, int); 79 int ld_icp_flush(struct ld_softc *); 80 void ld_icp_intr(struct icp_ccb *); 81 int ld_icp_match(struct device *, struct cfdata *, void *); 82 int ld_icp_start(struct ld_softc *, struct buf *); 83 84 void ld_icp_adjqparam(struct device *, int); 85 86 CFATTACH_DECL(ld_icp, sizeof(struct ld_icp_softc), 87 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 88 89 static const struct icp_servicecb ld_icp_servicecb = { 90 ld_icp_adjqparam, 91 }; 92 93 int 94 ld_icp_match(struct device *parent, struct cfdata *match, void *aux) 95 { 96 struct icp_attach_args *icpa; 97 98 icpa = aux; 99 100 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 101 } 102 103 void 104 ld_icp_attach(struct device *parent, struct device *self, void *aux) 105 { 106 struct icp_attach_args *icpa; 107 struct ld_icp_softc *sc; 108 struct ld_softc *ld; 109 struct icp_softc *icp; 110 struct icp_cachedrv *cd; 111 struct icp_cdevinfo *cdi; 112 const char *str; 113 int t; 114 115 sc = (struct ld_icp_softc *)self; 116 ld = &sc->sc_ld; 117 icp = (struct icp_softc *)parent; 118 icpa = aux; 119 cd = &icp->icp_cdr[icpa->icpa_unit]; 120 121 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 122 123 sc->sc_hwunit = icpa->icpa_unit; 124 ld->sc_maxxfer = ICP_MAX_XFER; 125 ld->sc_secsize = ICP_SECTOR_SIZE; 126 ld->sc_start = ld_icp_start; 127 ld->sc_dump = ld_icp_dump; 128 ld->sc_flush = ld_icp_flush; 129 ld->sc_secperunit = cd->cd_size; 130 ld->sc_flags = LDF_ENABLED; 131 ld->sc_maxqueuecnt = icp->icp_openings; 132 133 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 134 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 135 printf(": unable to retrieve device info\n"); 136 ld->sc_flags = LDF_ENABLED; 137 goto out; 138 } 139 cdi = (struct icp_cdevinfo *)icp->icp_scr; 140 141 printf(": <%.8s>, ", cdi->ld_name); 142 t = le32toh(cdi->ld_dtype) >> 16; 143 144 /* 145 * Print device type. 146 */ 147 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 148 str = "RAID-1"; 149 else if (t == 0) 150 str = "JBOD"; 151 else if (t == 1) 152 str = "RAID-0"; 153 else if (t == 2) 154 str = "Chain"; 155 else 156 str = "unknown type"; 157 158 printf("type: %s, ", str); 159 160 /* 161 * Print device status. 162 */ 163 if (t > 2) 164 str = "missing"; 165 else if ((cdi->ld_error & 1) != 0) { 166 str = "fault"; 167 ld->sc_flags = LDF_ENABLED; 168 } else if ((cdi->ld_error & 2) != 0) 169 str = "invalid"; 170 else { 171 str = "optimal"; 172 ld->sc_flags = LDF_ENABLED; 173 } 174 175 printf("status: %s\n", str); 176 177 out: 178 ldattach(ld); 179 } 180 181 int 182 ld_icp_detach(struct device *dv, int flags) 183 { 184 int rv; 185 186 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 187 return (rv); 188 ldenddetach((struct ld_softc *) dv); 189 190 return (0); 191 } 192 193 int 194 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 195 int dowrite, struct buf *bp) 196 { 197 struct icp_cachecmd *cc; 198 struct icp_ccb *ic; 199 struct icp_softc *icp; 200 int s, rv; 201 202 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 203 204 /* 205 * Allocate a command control block. 206 */ 207 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 208 return (EAGAIN); 209 210 /* 211 * Map the data transfer. 212 */ 213 cc = &ic->ic_cmd.cmd_packet.cc; 214 ic->ic_sg = cc->cc_sg; 215 ic->ic_service = ICP_CACHESERVICE; 216 217 rv = icp_ccb_map(icp, ic, data, datasize, 218 dowrite ? IC_XFER_OUT : IC_XFER_IN); 219 if (rv != 0) { 220 icp_ccb_free(icp, ic); 221 return (rv); 222 } 223 224 /* 225 * Build the command. 226 */ 227 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 228 cc->cc_deviceno = htole16(sc->sc_hwunit); 229 cc->cc_blockno = htole32(blkno); 230 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 231 cc->cc_addr = ~0; /* scatter gather */ 232 cc->cc_nsgent = htole32(ic->ic_nsgent); 233 234 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 235 ic->ic_nsgent * sizeof(*ic->ic_sg); 236 237 /* 238 * Fire it off to the controller. 239 */ 240 if (bp == NULL) { 241 s = splbio(); 242 rv = icp_ccb_poll(icp, ic, 10000); 243 icp_ccb_unmap(icp, ic); 244 icp_ccb_free(icp, ic); 245 splx(s); 246 } else { 247 ic->ic_intr = ld_icp_intr; 248 ic->ic_context = bp; 249 ic->ic_dv = &sc->sc_ld.sc_dv; 250 icp_ccb_enqueue(icp, ic); 251 } 252 253 return (rv); 254 } 255 256 int 257 ld_icp_start(struct ld_softc *ld, struct buf *bp) 258 { 259 260 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 261 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 262 } 263 264 int 265 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 266 { 267 268 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 269 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 270 } 271 272 int 273 ld_icp_flush(struct ld_softc *ld) 274 { 275 struct ld_icp_softc *sc; 276 struct icp_softc *icp; 277 struct icp_cachecmd *cc; 278 struct icp_ccb *ic; 279 int rv; 280 281 sc = (struct ld_icp_softc *)ld; 282 icp = (struct icp_softc *)ld->sc_dv.dv_parent; 283 284 ic = icp_ccb_alloc_wait(icp); 285 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 286 287 cc = &ic->ic_cmd.cmd_packet.cc; 288 cc->cc_deviceno = htole16(sc->sc_hwunit); 289 cc->cc_blockno = htole32(1); 290 cc->cc_blockcnt = 0; 291 cc->cc_addr = 0; 292 cc->cc_nsgent = 0; 293 294 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 295 ic->ic_service = ICP_CACHESERVICE; 296 297 rv = icp_ccb_wait(icp, ic, 30000); 298 icp_ccb_free(icp, ic); 299 300 return (rv); 301 } 302 303 void 304 ld_icp_intr(struct icp_ccb *ic) 305 { 306 struct buf *bp; 307 struct ld_icp_softc *sc; 308 struct icp_softc *icp; 309 310 bp = ic->ic_context; 311 sc = (struct ld_icp_softc *)ic->ic_dv; 312 icp = (struct icp_softc *)sc->sc_ld.sc_dv.dv_parent; 313 314 if (ic->ic_status != ICP_S_OK) { 315 printf("%s: request failed; status=0x%04x\n", 316 ic->ic_dv->dv_xname, ic->ic_status); 317 bp->b_flags |= B_ERROR; 318 bp->b_error = EIO; 319 bp->b_resid = bp->b_bcount; 320 321 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 322 icp->icp_evt.eu.sync.ionode = icp->icp_dv.dv_unit; 323 icp->icp_evt.eu.sync.service = icp->icp_service; 324 icp->icp_evt.eu.sync.status = icp->icp_status; 325 icp->icp_evt.eu.sync.info = icp->icp_info; 326 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 327 if (icp->icp_status >= 0x8000) 328 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 329 else 330 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 331 &icp->icp_evt); 332 } else 333 bp->b_resid = 0; 334 335 icp_ccb_unmap(icp, ic); 336 icp_ccb_free(icp, ic); 337 lddone(&sc->sc_ld, bp); 338 } 339 340 void 341 ld_icp_adjqparam(struct device *dv, int openings) 342 { 343 344 ldadjqparam((struct ld_softc *) dv, openings); 345 } 346
Indexes created Tue Sep 23 23:09:58 GMT 2025