ld_icp.c revision 1.21
1 /* $NetBSD: ld_icp.c,v 1.21 2008/08/11 06:43:38 simonb 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * ICP-Vortex "GDT" front-end for ld(4) driver. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: ld_icp.c,v 1.21 2008/08/11 06:43:38 simonb Exp $"); 38 39 #include "rnd.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/device.h> 45 #include <sys/buf.h> 46 #include <sys/bufq.h> 47 #include <sys/endian.h> 48 #include <sys/dkio.h> 49 #include <sys/disk.h> 50 #if NRND > 0 51 #include <sys/rnd.h> 52 #endif 53 54 #include <uvm/uvm_extern.h> 55 56 #include <sys/bus.h> 57 58 #include <dev/ldvar.h> 59 60 #include <dev/ic/icpreg.h> 61 #include <dev/ic/icpvar.h> 62 63 struct ld_icp_softc { 64 struct ld_softc sc_ld; 65 int sc_hwunit; 66 }; 67 68 void ld_icp_attach(struct device *, struct device *, void *); 69 int ld_icp_detach(struct device *, int); 70 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 71 struct buf *); 72 int ld_icp_dump(struct ld_softc *, void *, int, int); 73 int ld_icp_flush(struct ld_softc *, int); 74 void ld_icp_intr(struct icp_ccb *); 75 int ld_icp_match(struct device *, struct cfdata *, void *); 76 int ld_icp_start(struct ld_softc *, struct buf *); 77 78 void ld_icp_adjqparam(struct device *, int); 79 80 CFATTACH_DECL(ld_icp, sizeof(struct ld_icp_softc), 81 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 82 83 static const struct icp_servicecb ld_icp_servicecb = { 84 ld_icp_adjqparam, 85 }; 86 87 int 88 ld_icp_match(struct device *parent, struct cfdata *match, 89 void *aux) 90 { 91 struct icp_attach_args *icpa; 92 93 icpa = aux; 94 95 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 96 } 97 98 void 99 ld_icp_attach(struct device *parent, struct device *self, void *aux) 100 { 101 struct icp_attach_args *icpa; 102 struct ld_icp_softc *sc; 103 struct ld_softc *ld; 104 struct icp_softc *icp; 105 struct icp_cachedrv *cd; 106 struct icp_cdevinfo *cdi; 107 const char *str; 108 int t; 109 110 sc = (struct ld_icp_softc *)self; 111 ld = &sc->sc_ld; 112 icp = (struct icp_softc *)parent; 113 icpa = aux; 114 cd = &icp->icp_cdr[icpa->icpa_unit]; 115 116 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 117 118 sc->sc_hwunit = icpa->icpa_unit; 119 ld->sc_maxxfer = ICP_MAX_XFER; 120 ld->sc_secsize = ICP_SECTOR_SIZE; 121 ld->sc_start = ld_icp_start; 122 ld->sc_dump = ld_icp_dump; 123 ld->sc_flush = ld_icp_flush; 124 ld->sc_secperunit = cd->cd_size; 125 ld->sc_flags = LDF_ENABLED; 126 ld->sc_maxqueuecnt = icp->icp_openings; 127 128 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 129 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 130 aprint_error(": unable to retrieve device info\n"); 131 ld->sc_flags = LDF_ENABLED; 132 goto out; 133 } 134 cdi = (struct icp_cdevinfo *)icp->icp_scr; 135 136 aprint_normal(": <%.8s>, ", cdi->ld_name); 137 t = le32toh(cdi->ld_dtype) >> 16; 138 139 /* 140 * Print device type. 141 */ 142 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 143 str = "RAID-1"; 144 else if (t == 0) 145 str = "JBOD"; 146 else if (t == 1) 147 str = "RAID-0"; 148 else if (t == 2) 149 str = "Chain"; 150 else 151 str = "unknown type"; 152 153 aprint_normal("type: %s, ", str); 154 155 /* 156 * Print device status. 157 */ 158 if (t > 2) 159 str = "missing"; 160 else if ((cdi->ld_error & 1) != 0) { 161 str = "fault"; 162 ld->sc_flags = LDF_ENABLED; 163 } else if ((cdi->ld_error & 2) != 0) 164 str = "invalid"; 165 else { 166 str = "optimal"; 167 ld->sc_flags = LDF_ENABLED; 168 } 169 170 aprint_normal("status: %s\n", str); 171 172 out: 173 ldattach(ld); 174 } 175 176 int 177 ld_icp_detach(struct device *dv, int flags) 178 { 179 int rv; 180 181 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 182 return (rv); 183 ldenddetach((struct ld_softc *) dv); 184 185 return (0); 186 } 187 188 int 189 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 190 int dowrite, struct buf *bp) 191 { 192 struct icp_cachecmd *cc; 193 struct icp_ccb *ic; 194 struct icp_softc *icp; 195 int s, rv; 196 197 icp = (struct icp_softc *)device_parent(&sc->sc_ld.sc_dv); 198 199 /* 200 * Allocate a command control block. 201 */ 202 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 203 return (EAGAIN); 204 205 /* 206 * Map the data transfer. 207 */ 208 cc = &ic->ic_cmd.cmd_packet.cc; 209 ic->ic_sg = cc->cc_sg; 210 ic->ic_service = ICP_CACHESERVICE; 211 212 rv = icp_ccb_map(icp, ic, data, datasize, 213 dowrite ? IC_XFER_OUT : IC_XFER_IN); 214 if (rv != 0) { 215 icp_ccb_free(icp, ic); 216 return (rv); 217 } 218 219 /* 220 * Build the command. 221 */ 222 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 223 cc->cc_deviceno = htole16(sc->sc_hwunit); 224 cc->cc_blockno = htole32(blkno); 225 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 226 cc->cc_addr = ~0; /* scatter gather */ 227 cc->cc_nsgent = htole32(ic->ic_nsgent); 228 229 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 230 ic->ic_nsgent * sizeof(*ic->ic_sg); 231 232 /* 233 * Fire it off to the controller. 234 */ 235 if (bp == NULL) { 236 s = splbio(); 237 rv = icp_ccb_poll(icp, ic, 10000); 238 icp_ccb_unmap(icp, ic); 239 icp_ccb_free(icp, ic); 240 splx(s); 241 } else { 242 ic->ic_intr = ld_icp_intr; 243 ic->ic_context = bp; 244 ic->ic_dv = &sc->sc_ld.sc_dv; 245 icp_ccb_enqueue(icp, ic); 246 } 247 248 return (rv); 249 } 250 251 int 252 ld_icp_start(struct ld_softc *ld, struct buf *bp) 253 { 254 255 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 256 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 257 } 258 259 int 260 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 261 { 262 263 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 264 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 265 } 266 267 int 268 ld_icp_flush(struct ld_softc *ld, int flags) 269 { 270 struct ld_icp_softc *sc; 271 struct icp_softc *icp; 272 struct icp_cachecmd *cc; 273 struct icp_ccb *ic; 274 int rv; 275 276 sc = (struct ld_icp_softc *)ld; 277 icp = (struct icp_softc *)device_parent(&ld->sc_dv); 278 279 ic = icp_ccb_alloc_wait(icp); 280 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 281 282 cc = &ic->ic_cmd.cmd_packet.cc; 283 cc->cc_deviceno = htole16(sc->sc_hwunit); 284 cc->cc_blockno = htole32(1); 285 cc->cc_blockcnt = 0; 286 cc->cc_addr = 0; 287 cc->cc_nsgent = 0; 288 289 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 290 ic->ic_service = ICP_CACHESERVICE; 291 292 rv = icp_ccb_wait(icp, ic, 30000); 293 icp_ccb_free(icp, ic); 294 295 return (rv); 296 } 297 298 void 299 ld_icp_intr(struct icp_ccb *ic) 300 { 301 struct buf *bp; 302 struct ld_icp_softc *sc; 303 struct icp_softc *icp; 304 305 bp = ic->ic_context; 306 sc = (struct ld_icp_softc *)ic->ic_dv; 307 icp = (struct icp_softc *)device_parent(&sc->sc_ld.sc_dv); 308 309 if (ic->ic_status != ICP_S_OK) { 310 aprint_error_dev(ic->ic_dv, "request failed; status=0x%04x\n", 311 ic->ic_status); 312 bp->b_error = EIO; 313 bp->b_resid = bp->b_bcount; 314 315 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 316 icp->icp_evt.eu.sync.ionode = device_unit(&icp->icp_dv); 317 icp->icp_evt.eu.sync.service = icp->icp_service; 318 icp->icp_evt.eu.sync.status = icp->icp_status; 319 icp->icp_evt.eu.sync.info = icp->icp_info; 320 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 321 if (icp->icp_status >= 0x8000) 322 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 323 else 324 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 325 &icp->icp_evt); 326 } else 327 bp->b_resid = 0; 328 329 icp_ccb_unmap(icp, ic); 330 icp_ccb_free(icp, ic); 331 lddone(&sc->sc_ld, bp); 332 } 333 334 void 335 ld_icp_adjqparam(struct device *dv, int openings) 336 { 337 338 ldadjqparam((struct ld_softc *) dv, openings); 339 } 340
Indexes created Fri Sep 26 08:10:20 GMT 2025