1 /* $NetBSD: ld_icp.c,v 1.33 2025/04/13 02:34:03 rin 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 1.33 2025/04/13 02:34:03 rin 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 static void ld_icp_attach(device_t, device_t, void *); 64 static int ld_icp_detach(device_t, int); 65 static int ld_icp_dobio(struct ld_icp_softc *, void *, int, int, int, 66 struct buf *); 67 static int ld_icp_dump(struct ld_softc *, void *, daddr_t, int); 68 static int ld_icp_flush(struct ld_softc *, bool); 69 static int ld_icp_ioctl(struct ld_softc *, u_long, void *, int32_t, bool); 70 static void ld_icp_intr(struct icp_ccb *); 71 static int ld_icp_match(device_t, cfdata_t, void *); 72 static int ld_icp_start(struct ld_softc *, struct buf *); 73 74 static void ld_icp_adjqparam(device_t, int); 75 76 CFATTACH_DECL_NEW(ld_icp, sizeof(struct ld_icp_softc), 77 ld_icp_match, ld_icp_attach, ld_icp_detach, NULL); 78 79 static const struct icp_servicecb ld_icp_servicecb = { 80 ld_icp_adjqparam, 81 }; 82 83 static int 84 ld_icp_match(device_t parent, cfdata_t match, void *aux) 85 { 86 struct icp_attach_args *icpa; 87 88 icpa = aux; 89 90 return (icpa->icpa_unit < ICPA_UNIT_SCSI); 91 } 92 93 static void 94 ld_icp_attach(device_t parent, device_t self, void *aux) 95 { 96 struct icp_attach_args *icpa = aux; 97 struct ld_icp_softc *sc = device_private(self); 98 struct ld_softc *ld = &sc->sc_ld; 99 struct icp_softc *icp = device_private(parent); 100 struct icp_cachedrv *cd = &icp->icp_cdr[icpa->icpa_unit]; 101 struct icp_cdevinfo *cdi; 102 const char *str; 103 int t; 104 105 ld->sc_dv = self; 106 107 icp_register_servicecb(icp, icpa->icpa_unit, &ld_icp_servicecb); 108 109 sc->sc_hwunit = icpa->icpa_unit; 110 ld->sc_maxxfer = ICP_MAX_XFER; 111 ld->sc_secsize = ICP_SECTOR_SIZE; 112 ld->sc_start = ld_icp_start; 113 ld->sc_dump = ld_icp_dump; 114 ld->sc_ioctl = ld_icp_ioctl; 115 ld->sc_secperunit = cd->cd_size; 116 ld->sc_flags = LDF_ENABLED; 117 ld->sc_maxqueuecnt = icp->icp_openings; 118 119 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_CACHE_DRV_INFO, 120 sc->sc_hwunit, sizeof(struct icp_cdevinfo))) { 121 aprint_error(": unable to retrieve device info\n"); 122 ld->sc_flags = LDF_ENABLED; 123 goto out; 124 } 125 cdi = (struct icp_cdevinfo *)icp->icp_scr; 126 127 aprint_normal(": <%.8s>, ", cdi->ld_name); 128 t = le32toh(cdi->ld_dtype) >> 16; 129 130 /* 131 * Print device type. 132 */ 133 if (le32toh(cdi->ld_dcnt) > 1 || le32toh(cdi->ld_slave) != -1) 134 str = "RAID-1"; 135 else if (t == 0) 136 str = "JBOD"; 137 else if (t == 1) 138 str = "RAID-0"; 139 else if (t == 2) 140 str = "Chain"; 141 else 142 str = "unknown type"; 143 144 aprint_normal("type: %s, ", str); 145 146 /* 147 * Print device status. 148 */ 149 if (t > 2) 150 str = "missing"; 151 else if ((cdi->ld_error & 1) != 0) { 152 str = "fault"; 153 ld->sc_flags = LDF_ENABLED; 154 } else if ((cdi->ld_error & 2) != 0) 155 str = "invalid"; 156 else { 157 str = "optimal"; 158 ld->sc_flags = LDF_ENABLED; 159 } 160 161 aprint_normal("status: %s\n", str); 162 163 out: 164 ldattach(ld, BUFQ_DISK_DEFAULT_STRAT); 165 } 166 167 static int 168 ld_icp_detach(device_t dv, int flags) 169 { 170 struct ld_softc *ldsc = device_private(dv); 171 int rv; 172 173 if ((rv = ldbegindetach(ldsc, flags)) != 0) 174 return (rv); 175 ldenddetach(ldsc); 176 177 return (0); 178 } 179 180 static int 181 ld_icp_dobio(struct ld_icp_softc *sc, void *data, int datasize, int blkno, 182 int dowrite, struct buf *bp) 183 { 184 struct icp_cachecmd *cc; 185 struct icp_ccb *ic; 186 struct icp_softc *icp; 187 int s, rv; 188 189 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 190 191 /* 192 * Allocate a command control block. 193 */ 194 if (__predict_false((ic = icp_ccb_alloc(icp)) == NULL)) 195 return (EAGAIN); 196 197 /* 198 * Map the data transfer. 199 */ 200 cc = &ic->ic_cmd.cmd_packet.cc; 201 ic->ic_sg = cc->cc_sg; 202 ic->ic_service = ICP_CACHESERVICE; 203 204 rv = icp_ccb_map(icp, ic, data, datasize, 205 dowrite ? IC_XFER_OUT : IC_XFER_IN); 206 if (rv != 0) { 207 icp_ccb_free(icp, ic); 208 return (rv); 209 } 210 211 /* 212 * Build the command. 213 */ 214 ic->ic_cmd.cmd_opcode = htole16((dowrite ? ICP_WRITE : ICP_READ)); 215 cc->cc_deviceno = htole16(sc->sc_hwunit); 216 cc->cc_blockno = htole32(blkno); 217 cc->cc_blockcnt = htole32(datasize / ICP_SECTOR_SIZE); 218 cc->cc_addr = ~0; /* scatter gather */ 219 cc->cc_nsgent = htole32(ic->ic_nsgent); 220 221 ic->ic_cmdlen = (u_long)ic->ic_sg - (u_long)&ic->ic_cmd + 222 ic->ic_nsgent * sizeof(*ic->ic_sg); 223 224 /* 225 * Fire it off to the controller. 226 */ 227 if (bp == NULL) { 228 s = splbio(); 229 rv = icp_ccb_poll(icp, ic, 10000); 230 icp_ccb_unmap(icp, ic); 231 icp_ccb_free(icp, ic); 232 splx(s); 233 } else { 234 ic->ic_intr = ld_icp_intr; 235 ic->ic_context = bp; 236 ic->ic_dv = sc->sc_ld.sc_dv; 237 icp_ccb_enqueue(icp, ic); 238 } 239 240 return (rv); 241 } 242 243 static int 244 ld_icp_start(struct ld_softc *ld, struct buf *bp) 245 { 246 247 return (ld_icp_dobio((struct ld_icp_softc *)ld, bp->b_data, 248 bp->b_bcount, bp->b_rawblkno, (bp->b_flags & B_READ) == 0, bp)); 249 } 250 251 static int 252 ld_icp_dump(struct ld_softc *ld, void *data, daddr_t blkno, int blkcnt) 253 { 254 255 /* ld_icp_dobio() takes only an 'int' as a disk address */ 256 if (blkno + blkcnt - 1 > INT_MAX) 257 return (EIO); 258 259 return (ld_icp_dobio((struct ld_icp_softc *)ld, data, 260 blkcnt * ld->sc_secsize, blkno, 1, NULL)); 261 } 262 263 /* ARGSUSED */ 264 static int 265 ld_icp_flush(struct ld_softc *ld, bool poll) 266 { 267 struct ld_icp_softc *sc; 268 struct icp_softc *icp; 269 struct icp_cachecmd *cc; 270 struct icp_ccb *ic; 271 int rv; 272 273 sc = (struct ld_icp_softc *)ld; 274 icp = device_private(device_parent(ld->sc_dv)); 275 276 ic = icp_ccb_alloc_wait(icp); 277 ic->ic_cmd.cmd_opcode = htole16(ICP_FLUSH); 278 279 cc = &ic->ic_cmd.cmd_packet.cc; 280 cc->cc_deviceno = htole16(sc->sc_hwunit); 281 cc->cc_blockno = htole32(1); 282 cc->cc_blockcnt = 0; 283 cc->cc_addr = 0; 284 cc->cc_nsgent = 0; 285 286 ic->ic_cmdlen = (u_long)&cc->cc_sg - (u_long)&ic->ic_cmd; 287 ic->ic_service = ICP_CACHESERVICE; 288 289 rv = icp_ccb_wait(icp, ic, 30000); 290 icp_ccb_free(icp, ic); 291 292 return (rv); 293 } 294 295 static int 296 ld_icp_ioctl(struct ld_softc *ld, u_long cmd, void *addr, int32_t flag, bool poll) 297 { 298 int error; 299 300 switch (cmd) { 301 case DIOCCACHESYNC: 302 error = ld_icp_flush(ld, poll); 303 break; 304 305 default: 306 error = EPASSTHROUGH; 307 break; 308 } 309 310 return error; 311 } 312 313 static void 314 ld_icp_intr(struct icp_ccb *ic) 315 { 316 struct buf *bp; 317 struct ld_icp_softc *sc; 318 struct icp_softc *icp; 319 320 bp = ic->ic_context; 321 sc = device_private(ic->ic_dv); 322 icp = device_private(device_parent(sc->sc_ld.sc_dv)); 323 324 if (ic->ic_status != ICP_S_OK) { 325 aprint_error_dev(ic->ic_dv, "request failed; status=0x%04x\n", 326 ic->ic_status); 327 bp->b_error = EIO; 328 bp->b_resid = bp->b_bcount; 329 330 icp->icp_evt.size = sizeof(icp->icp_evt.eu.sync); 331 icp->icp_evt.eu.sync.ionode = device_unit(icp->icp_dv); 332 icp->icp_evt.eu.sync.service = icp->icp_service; 333 icp->icp_evt.eu.sync.status = icp->icp_status; 334 icp->icp_evt.eu.sync.info = icp->icp_info; 335 icp->icp_evt.eu.sync.hostdrive = sc->sc_hwunit; 336 if (icp->icp_status >= 0x8000) 337 icp_store_event(icp, GDT_ES_SYNC, 0, &icp->icp_evt); 338 else 339 icp_store_event(icp, GDT_ES_SYNC, icp->icp_service, 340 &icp->icp_evt); 341 } else 342 bp->b_resid = 0; 343 344 icp_ccb_unmap(icp, ic); 345 icp_ccb_free(icp, ic); 346 lddone(&sc->sc_ld, bp); 347 } 348 349 static void 350 ld_icp_adjqparam(device_t dv, int openings) 351 { 352 353 ldadjqparam(device_private(dv), openings); 354 } 355 356 MODULE(MODULE_CLASS_DRIVER, ld_icp, "ld"); /* no icp module yet */ 357 358 #ifdef _MODULE 359 /* 360 * XXX Don't allow ioconf.c to redefine the "struct cfdriver ld_cd" 361 * XXX it will be defined in the common-code module 362 */ 363 #undef CFDRIVER_DECL 364 #define CFDRIVER_DECL(name, class, attr) 365 #include "ioconf.c" 366 #endif 367 368 static int 369 ld_icp_modcmd(modcmd_t cmd, void *opaque) 370 { 371 #ifdef _MODULE 372 /* 373 * We ignore the cfdriver_vec[] that ioconf provides, since 374 * the cfdrivers are attached already. 375 */ 376 static struct cfdriver * const no_cfdriver_vec[] = { NULL }; 377 #endif 378 int error = 0; 379 380 #ifdef _MODULE 381 switch (cmd) { 382 case MODULE_CMD_INIT: 383 error = config_init_component(no_cfdriver_vec, 384 cfattach_ioconf_ld_icp, cfdata_ioconf_ld_icp); 385 break; 386 case MODULE_CMD_FINI: 387 error = config_fini_component(no_cfdriver_vec, 388 cfattach_ioconf_ld_icp, cfdata_ioconf_ld_icp); 389 break; 390 default: 391 error = ENOTTY; 392 break; 393 } 394 #endif 395 396 return error; 397 } 398
Indexes created Sat Sep 20 22:09:52 GMT 2025