ld_icp.c revision 1.16
1 /* $NetBSD: ld_icp.c,v 1.16 2006/11/16 01:32:51 christos 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 1.16 2006/11/16 01:32:51 christos 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/bufq.h> 54 #include <sys/endian.h> 55 #include <sys/dkio.h> 56 #include <sys/disk.h> 57 #if NRND > 0 58 #include <sys/rnd.h> 59 #endif 60 61 #include <uvm/uvm_extern.h> 62 63 #include <machine/bus.h> 64 65 #include <dev/ldvar.h> 66 67 #include <dev/ic/icpreg.h> 68 #include <dev/ic/icpvar.h> 69 70 struct ld_icp_softc { 71 struct ld_softc sc_ld; 72 int sc_hwunit; 73 }; 74 75 void ld_icp_attach(struct device *, struct device *, void *); 76 int ld_icp_detach(struct device *, int); 77 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 78 struct buf *); 79 int ld_icp_dump(struct ld_softc *, void *, int, int); 80 int ld_icp_flush(struct ld_softc *); 81 void ld_icp_intr(struct icp_ccb *); 82 int ld_icp_match(struct device *, struct cfdata *, void *); 83 int ld_icp_start(struct ld_softc *, struct buf *); 84 85 void ld_icp_adjqparam(struct device *, int); 86 87 CFATTACH_DECL(ld_icp, sizeof(struct ld_icp_softc), 88 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 89 90 static const struct icp_servicecb ld_icp_servicecb = { 91 ld_icp_adjqparam, 92 }; 93 94 int 95 ld_icp_match(struct device *parent, struct cfdata *match, 96 void *aux) 97 { 98 struct icp_attach_args *icpa; 99 100 icpa = aux; 101 102 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 103 } 104 105 void 106 ld_icp_attach(struct device *parent, struct device *self, void *aux) 107 { 108 struct icp_attach_args *icpa; 109 struct ld_icp_softc *sc; 110 struct ld_softc *ld; 111 struct icp_softc *icp; 112 struct icp_cachedrv *cd; 113 struct icp_cdevinfo *cdi; 114 const char *str; 115 int t; 116 117 sc = (struct ld_icp_softc *)self; 118 ld = &sc->sc_ld; 119 icp = (struct icp_softc *)parent; 120 icpa = aux; 121 cd = &icp->icp_cdr[icpa->icpa_unit]; 122 123 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 124 125 sc->sc_hwunit = icpa->icpa_unit; 126 ld->sc_maxxfer = ICP_MAX_XFER; 127 ld->sc_secsize = ICP_SECTOR_SIZE; 128 ld->sc_start = ld_icp_start; 129 ld->sc_dump = ld_icp_dump; 130 ld->sc_flush = ld_icp_flush; 131 ld->sc_secperunit = cd->cd_size; 132 ld->sc_flags = LDF_ENABLED; 133 ld->sc_maxqueuecnt = icp->icp_openings; 134 135 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 136 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 137 aprint_error(": unable to retrieve device info\n"); 138 ld->sc_flags = LDF_ENABLED; 139 goto out; 140 } 141 cdi = (struct icp_cdevinfo *)icp->icp_scr; 142 143 aprint_normal(": <%.8s>, ", cdi->ld_name); 144 t = le32toh(cdi->ld_dtype) >> 16; 145 146 /* 147 * Print device type. 148 */ 149 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 150 str = "RAID-1"; 151 else if (t == 0) 152 str = "JBOD"; 153 else if (t == 1) 154 str = "RAID-0"; 155 else if (t == 2) 156 str = "Chain"; 157 else 158 str = "unknown type"; 159 160 aprint_normal("type: %s, ", str); 161 162 /* 163 * Print device status. 164 */ 165 if (t > 2) 166 str = "missing"; 167 else if ((cdi->ld_error & 1) != 0) { 168 str = "fault"; 169 ld->sc_flags = LDF_ENABLED; 170 } else if ((cdi->ld_error & 2) != 0) 171 str = "invalid"; 172 else { 173 str = "optimal"; 174 ld->sc_flags = LDF_ENABLED; 175 } 176 177 aprint_normal("status: %s\n", str); 178 179 out: 180 ldattach(ld); 181 } 182 183 int 184 ld_icp_detach(struct device *dv, int flags) 185 { 186 int rv; 187 188 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 189 return (rv); 190 ldenddetach((struct ld_softc *) dv); 191 192 return (0); 193 } 194 195 int 196 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 197 int dowrite, struct buf *bp) 198 { 199 struct icp_cachecmd *cc; 200 struct icp_ccb *ic; 201 struct icp_softc *icp; 202 int s, rv; 203 204 icp = (struct icp_softc *)device_parent(&sc->sc_ld.sc_dv); 205 206 /* 207 * Allocate a command control block. 208 */ 209 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 210 return (EAGAIN); 211 212 /* 213 * Map the data transfer. 214 */ 215 cc = &ic->ic_cmd.cmd_packet.cc; 216 ic->ic_sg = cc->cc_sg; 217 ic->ic_service = ICP_CACHESERVICE; 218 219 rv = icp_ccb_map(icp, ic, data, datasize, 220 dowrite ? IC_XFER_OUT : IC_XFER_IN); 221 if (rv != 0) { 222 icp_ccb_free(icp, ic); 223 return (rv); 224 } 225 226 /* 227 * Build the command. 228 */ 229 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 230 cc->cc_deviceno = htole16(sc->sc_hwunit); 231 cc->cc_blockno = htole32(blkno); 232 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 233 cc->cc_addr = ~0; /* scatter gather */ 234 cc->cc_nsgent = htole32(ic->ic_nsgent); 235 236 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 237 ic->ic_nsgent * sizeof(*ic->ic_sg); 238 239 /* 240 * Fire it off to the controller. 241 */ 242 if (bp == NULL) { 243 s = splbio(); 244 rv = icp_ccb_poll(icp, ic, 10000); 245 icp_ccb_unmap(icp, ic); 246 icp_ccb_free(icp, ic); 247 splx(s); 248 } else { 249 ic->ic_intr = ld_icp_intr; 250 ic->ic_context = bp; 251 ic->ic_dv = &sc->sc_ld.sc_dv; 252 icp_ccb_enqueue(icp, ic); 253 } 254 255 return (rv); 256 } 257 258 int 259 ld_icp_start(struct ld_softc *ld, struct buf *bp) 260 { 261 262 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 263 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 264 } 265 266 int 267 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 268 { 269 270 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 271 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 272 } 273 274 int 275 ld_icp_flush(struct ld_softc *ld) 276 { 277 struct ld_icp_softc *sc; 278 struct icp_softc *icp; 279 struct icp_cachecmd *cc; 280 struct icp_ccb *ic; 281 int rv; 282 283 sc = (struct ld_icp_softc *)ld; 284 icp = (struct icp_softc *)device_parent(&ld->sc_dv); 285 286 ic = icp_ccb_alloc_wait(icp); 287 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 288 289 cc = &ic->ic_cmd.cmd_packet.cc; 290 cc->cc_deviceno = htole16(sc->sc_hwunit); 291 cc->cc_blockno = htole32(1); 292 cc->cc_blockcnt = 0; 293 cc->cc_addr = 0; 294 cc->cc_nsgent = 0; 295 296 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 297 ic->ic_service = ICP_CACHESERVICE; 298 299 rv = icp_ccb_wait(icp, ic, 30000); 300 icp_ccb_free(icp, ic); 301 302 return (rv); 303 } 304 305 void 306 ld_icp_intr(struct icp_ccb *ic) 307 { 308 struct buf *bp; 309 struct ld_icp_softc *sc; 310 struct icp_softc *icp; 311 312 bp = ic->ic_context; 313 sc = (struct ld_icp_softc *)ic->ic_dv; 314 icp = (struct icp_softc *)device_parent(&sc->sc_ld.sc_dv); 315 316 if (ic->ic_status != ICP_S_OK) { 317 printf("%s: request failed; status=0x%04x\n", 318 ic->ic_dv->dv_xname, ic->ic_status); 319 bp->b_flags |= B_ERROR; 320 bp->b_error = EIO; 321 bp->b_resid = bp->b_bcount; 322 323 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 324 icp->icp_evt.eu.sync.ionode = device_unit(&icp->icp_dv); 325 icp->icp_evt.eu.sync.service = icp->icp_service; 326 icp->icp_evt.eu.sync.status = icp->icp_status; 327 icp->icp_evt.eu.sync.info = icp->icp_info; 328 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 329 if (icp->icp_status >= 0x8000) 330 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 331 else 332 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 333 &icp->icp_evt); 334 } else 335 bp->b_resid = 0; 336 337 icp_ccb_unmap(icp, ic); 338 icp_ccb_free(icp, ic); 339 lddone(&sc->sc_ld, bp); 340 } 341 342 void 343 ld_icp_adjqparam(struct device *dv, int openings) 344 { 345 346 ldadjqparam((struct ld_softc *) dv, openings); 347 } 348
Indexes created Thu Sep 25 16:09:42 GMT 2025