ld_icp.c revision 1.29
1 /* $NetBSD: ld_icp.c,v 1.29 2016/09/27 03:33:32 pgoyette 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 1.29 2016/09/27 03:33:32 pgoyette Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/device.h> 43 #include <sys/buf.h> 44 #include <sys/bufq.h> 45 #include <sys/endian.h> 46 #include <sys/dkio.h> 47 #include <sys/disk.h> 48 #include <sys/module.h> 49 #include <sys/bus.h> 50 51 #include <dev/ldvar.h> 52 53 #include <dev/ic/icpreg.h> 54 #include <dev/ic/icpvar.h> 55 56 #include "ioconf.h" 57 58 struct ld_icp_softc { 59 struct ld_softc sc_ld; 60 int sc_hwunit; 61 }; 62 63 void ld_icp_attach(device_t, device_t, void *); 64 int ld_icp_detach(device_t, int); 65 int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 66 struct buf *); 67 int ld_icp_dump(struct ld_softc *, void *, int, int); 68 int ld_icp_flush(struct ld_softc *, int); 69 void ld_icp_intr(struct icp_ccb *); 70 int ld_icp_match(device_t, cfdata_t, void *); 71 int ld_icp_start(struct ld_softc *, struct buf *); 72 73 void ld_icp_adjqparam(device_t, int); 74 75 CFATTACH_DECL_NEW(ld_icp, sizeof(struct ld_icp_softc), 76 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 77 78 static const struct icp_servicecb ld_icp_servicecb = { 79 ld_icp_adjqparam, 80 }; 81 82 int 83 ld_icp_match(device_t parent, cfdata_t match, void *aux) 84 { 85 struct icp_attach_args *icpa; 86 87 icpa = aux; 88 89 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 90 } 91 92 void 93 ld_icp_attach(device_t parent, device_t self, void *aux) 94 { 95 struct icp_attach_args *icpa = aux; 96 struct ld_icp_softc *sc = device_private(self); 97 struct ld_softc *ld = &sc->sc_ld; 98 struct icp_softc *icp = device_private(parent); 99 struct icp_cachedrv *cd = &icp->icp_cdr[icpa->icpa_unit]; 100 struct icp_cdevinfo *cdi; 101 const char *str; 102 int t; 103 104 ld->sc_dv = self; 105 106 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 107 108 sc->sc_hwunit = icpa->icpa_unit; 109 ld->sc_maxxfer = ICP_MAX_XFER; 110 ld->sc_secsize = ICP_SECTOR_SIZE; 111 ld->sc_start = ld_icp_start; 112 ld->sc_dump = ld_icp_dump; 113 ld->sc_flush = ld_icp_flush; 114 ld->sc_secperunit = cd->cd_size; 115 ld->sc_flags = LDF_ENABLED; 116 ld->sc_maxqueuecnt = icp->icp_openings; 117 118 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 119 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 120 aprint_error(": unable to retrieve device info\n"); 121 ld->sc_flags = LDF_ENABLED; 122 goto out; 123 } 124 cdi = (struct icp_cdevinfo *)icp->icp_scr; 125 126 aprint_normal(": <%.8s>, ", cdi->ld_name); 127 t = le32toh(cdi->ld_dtype) >> 16; 128 129 /* 130 * Print device type. 131 */ 132 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 133 str = "RAID-1"; 134 else if (t == 0) 135 str = "JBOD"; 136 else if (t == 1) 137 str = "RAID-0"; 138 else if (t == 2) 139 str = "Chain"; 140 else 141 str = "unknown type"; 142 143 aprint_normal("type: %s, ", str); 144 145 /* 146 * Print device status. 147 */ 148 if (t > 2) 149 str = "missing"; 150 else if ((cdi->ld_error & 1) != 0) { 151 str = "fault"; 152 ld->sc_flags = LDF_ENABLED; 153 } else if ((cdi->ld_error & 2) != 0) 154 str = "invalid"; 155 else { 156 str = "optimal"; 157 ld->sc_flags = LDF_ENABLED; 158 } 159 160 aprint_normal("status: %s\n", str); 161 162 out: 163 ldattach(ld, BUFQ_DISK_DEFAULT_STRAT); 164 } 165 166 int 167 ld_icp_detach(device_t dv, int flags) 168 { 169 int rv; 170 171 if ((rv = ldbegindetach((struct ld_softc *)dv, flags)) != 0) 172 return (rv); 173 ldenddetach((struct ld_softc *) dv); 174 175 return (0); 176 } 177 178 int 179 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 180 int dowrite, struct buf *bp) 181 { 182 struct icp_cachecmd *cc; 183 struct icp_ccb *ic; 184 struct icp_softc *icp; 185 int s, rv; 186 187 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 188 189 /* 190 * Allocate a command control block. 191 */ 192 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 193 return (EAGAIN); 194 195 /* 196 * Map the data transfer. 197 */ 198 cc = &ic->ic_cmd.cmd_packet.cc; 199 ic->ic_sg = cc->cc_sg; 200 ic->ic_service = ICP_CACHESERVICE; 201 202 rv = icp_ccb_map(icp, ic, data, datasize, 203 dowrite ? IC_XFER_OUT : IC_XFER_IN); 204 if (rv != 0) { 205 icp_ccb_free(icp, ic); 206 return (rv); 207 } 208 209 /* 210 * Build the command. 211 */ 212 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 213 cc->cc_deviceno = htole16(sc->sc_hwunit); 214 cc->cc_blockno = htole32(blkno); 215 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 216 cc->cc_addr = ~0; /* scatter gather */ 217 cc->cc_nsgent = htole32(ic->ic_nsgent); 218 219 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 220 ic->ic_nsgent * sizeof(*ic->ic_sg); 221 222 /* 223 * Fire it off to the controller. 224 */ 225 if (bp == NULL) { 226 s = splbio(); 227 rv = icp_ccb_poll(icp, ic, 10000); 228 icp_ccb_unmap(icp, ic); 229 icp_ccb_free(icp, ic); 230 splx(s); 231 } else { 232 ic->ic_intr = ld_icp_intr; 233 ic->ic_context = bp; 234 ic->ic_dv = sc->sc_ld.sc_dv; 235 icp_ccb_enqueue(icp, ic); 236 } 237 238 return (rv); 239 } 240 241 int 242 ld_icp_start(struct ld_softc *ld, struct buf *bp) 243 { 244 245 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 246 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 247 } 248 249 int 250 ld_icp_dump(struct ld_softc *ld, void *data, int blkno, int blkcnt) 251 { 252 253 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 254 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 255 } 256 257 int 258 ld_icp_flush(struct ld_softc *ld, int flags) 259 { 260 struct ld_icp_softc *sc; 261 struct icp_softc *icp; 262 struct icp_cachecmd *cc; 263 struct icp_ccb *ic; 264 int rv; 265 266 sc = (struct ld_icp_softc *)ld; 267 icp = device_private(device_parent(ld->sc_dv)); 268 269 ic = icp_ccb_alloc_wait(icp); 270 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 271 272 cc = &ic->ic_cmd.cmd_packet.cc; 273 cc->cc_deviceno = htole16(sc->sc_hwunit); 274 cc->cc_blockno = htole32(1); 275 cc->cc_blockcnt = 0; 276 cc->cc_addr = 0; 277 cc->cc_nsgent = 0; 278 279 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 280 ic->ic_service = ICP_CACHESERVICE; 281 282 rv = icp_ccb_wait(icp, ic, 30000); 283 icp_ccb_free(icp, ic); 284 285 return (rv); 286 } 287 288 void 289 ld_icp_intr(struct icp_ccb *ic) 290 { 291 struct buf *bp; 292 struct ld_icp_softc *sc; 293 struct icp_softc *icp; 294 295 bp = ic->ic_context; 296 sc = device_private(ic->ic_dv); 297 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 298 299 if (ic->ic_status != ICP_S_OK) { 300 aprint_error_dev(ic->ic_dv, "request failed; status=0x%04x\n", 301 ic->ic_status); 302 bp->b_error = EIO; 303 bp->b_resid = bp->b_bcount; 304 305 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 306 icp->icp_evt.eu.sync.ionode = device_unit(icp->icp_dv); 307 icp->icp_evt.eu.sync.service = icp->icp_service; 308 icp->icp_evt.eu.sync.status = icp->icp_status; 309 icp->icp_evt.eu.sync.info = icp->icp_info; 310 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 311 if (icp->icp_status >= 0x8000) 312 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 313 else 314 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 315 &icp->icp_evt); 316 } else 317 bp->b_resid = 0; 318 319 icp_ccb_unmap(icp, ic); 320 icp_ccb_free(icp, ic); 321 lddone(&sc->sc_ld, bp); 322 } 323 324 void 325 ld_icp_adjqparam(device_t dv, int openings) 326 { 327 328 ldadjqparam((struct ld_softc *) dv, openings); 329 } 330 331 MODULE(MODULE_CLASS_DRIVER, ld_icp, "ld"); /* no icp module yet */ 332 333 #ifdef _MODULE 334 /* 335 * XXX Don't allow ioconf.c to redefine the "struct cfdriver ld_cd" 336 * XXX it will be defined in the common-code module 337 */ 338 #undef CFDRIVER_DECL 339 #define CFDRIVER_DECL(name, class, attr) 340 #include "ioconf.c" 341 #endif 342 343 static int 344 ld_icp_modcmd(modcmd_t cmd, void *opaque) 345 { 346 #ifdef _MODULE 347 /* 348 * We ignore the cfdriver_vec[] that ioconf provides, since 349 * the cfdrivers are attached already. 350 */ 351 static struct cfdriver * const no_cfdriver_vec[] = { NULL }; 352 #endif 353 int error = 0; 354 355 #ifdef _MODULE 356 switch (cmd) { 357 case MODULE_CMD_INIT: 358 error = config_init_component(no_cfdriver_vec, 359 cfattach_ioconf_ld_icp, cfdata_ioconf_ld_icp); 360 break; 361 case MODULE_CMD_FINI: 362 error = config_fini_component(no_cfdriver_vec, 363 cfattach_ioconf_ld_icp, cfdata_ioconf_ld_icp); 364 break; 365 default: 366 error = ENOTTY; 367 break; 368 } 369 #endif 370 371 return error; 372 } 373
Indexes created Wed Sep 24 05:09:52 GMT 2025