iopsp.c revision 1.26
1 /* $NetBSD: iopsp.c,v 1.26 2007/02/15 15:40:51 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 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 * Raw SCSI device support for I2O. IOPs present SCSI devices individually; 41 * we group them by controlling port. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: iopsp.c,v 1.26 2007/02/15 15:40:51 ad Exp $"); 46 47 #include "opt_i2o.h" 48 49 #include <sys/param.h> 50 #include <sys/systm.h> 51 #include <sys/kernel.h> 52 #include <sys/device.h> 53 #include <sys/queue.h> 54 #include <sys/proc.h> 55 #include <sys/buf.h> 56 #include <sys/endian.h> 57 #include <sys/malloc.h> 58 #include <sys/scsiio.h> 59 60 #include <sys/bswap.h> 61 #include <machine/bus.h> 62 63 #include <dev/scsipi/scsi_all.h> 64 #include <dev/scsipi/scsi_disk.h> 65 #include <dev/scsipi/scsipi_all.h> 66 #include <dev/scsipi/scsiconf.h> 67 #include <dev/scsipi/scsi_message.h> 68 69 #include <dev/i2o/i2o.h> 70 #include <dev/i2o/iopio.h> 71 #include <dev/i2o/iopvar.h> 72 #include <dev/i2o/iopspvar.h> 73 74 static void iopsp_adjqparam(struct device *, int); 75 static void iopsp_attach(struct device *, struct device *, void *); 76 static void iopsp_intr(struct device *, struct iop_msg *, void *); 77 static int iopsp_ioctl(struct scsipi_channel *, u_long, 78 caddr_t, int, struct proc *); 79 static int iopsp_match(struct device *, struct cfdata *, void *); 80 static int iopsp_rescan(struct iopsp_softc *); 81 static int iopsp_reconfig(struct device *); 82 static void iopsp_scsipi_request(struct scsipi_channel *, 83 scsipi_adapter_req_t, void *); 84 85 CFATTACH_DECL(iopsp, sizeof(struct iopsp_softc), 86 iopsp_match, iopsp_attach, NULL, NULL); 87 88 /* 89 * Match a supported device. 90 */ 91 static int 92 iopsp_match(struct device *parent, struct cfdata *match, void *aux) 93 { 94 struct iop_attach_args *ia; 95 struct { 96 struct i2o_param_op_results pr; 97 struct i2o_param_read_results prr; 98 struct i2o_param_hba_ctlr_info ci; 99 } __attribute__ ((__packed__)) param; 100 101 ia = aux; 102 103 if (ia->ia_class != I2O_CLASS_BUS_ADAPTER_PORT) 104 return (0); 105 106 if (iop_field_get_all((struct iop_softc *)parent, ia->ia_tid, 107 I2O_PARAM_HBA_CTLR_INFO, ¶m, sizeof(param), NULL) != 0) 108 return (0); 109 110 return (param.ci.bustype == I2O_HBA_BUS_SCSI || 111 param.ci.bustype == I2O_HBA_BUS_FCA); 112 } 113 114 /* 115 * Attach a supported device. 116 */ 117 static void 118 iopsp_attach(struct device *parent, struct device *self, void *aux) 119 { 120 struct iop_attach_args *ia; 121 struct iopsp_softc *sc; 122 struct iop_softc *iop; 123 struct { 124 struct i2o_param_op_results pr; 125 struct i2o_param_read_results prr; 126 union { 127 struct i2o_param_hba_ctlr_info ci; 128 struct i2o_param_hba_scsi_ctlr_info sci; 129 struct i2o_param_hba_scsi_port_info spi; 130 } p; 131 } __attribute__ ((__packed__)) param; 132 int fc, rv; 133 #ifdef I2OVERBOSE 134 int size; 135 #endif 136 137 ia = (struct iop_attach_args *)aux; 138 sc = device_private(self); 139 iop = device_private(parent); 140 141 /* Register us as an initiator. */ 142 sc->sc_ii.ii_dv = self; 143 sc->sc_ii.ii_intr = iopsp_intr; 144 sc->sc_ii.ii_flags = 0; 145 sc->sc_ii.ii_tid = ia->ia_tid; 146 sc->sc_ii.ii_reconfig = iopsp_reconfig; 147 sc->sc_ii.ii_adjqparam = iopsp_adjqparam; 148 iop_initiator_register(iop, &sc->sc_ii); 149 150 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_CTLR_INFO, 151 ¶m, sizeof(param), NULL); 152 if (rv != 0) 153 goto bad; 154 155 fc = (param.p.ci.bustype == I2O_HBA_BUS_FCA); 156 157 /* 158 * Say what the device is. If we can find out what the controling 159 * device is, say what that is too. 160 */ 161 printf(": SCSI port"); 162 iop_print_ident(iop, ia->ia_tid); 163 printf("\n"); 164 165 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_SCSI_CTLR_INFO, 166 ¶m, sizeof(param), NULL); 167 if (rv != 0) 168 goto bad; 169 170 #ifdef I2OVERBOSE 171 printf("%s: ", sc->sc_dv.dv_xname); 172 if (fc) 173 printf("FC"); 174 else 175 printf("%d-bit", param.p.sci.maxdatawidth); 176 printf(", max sync rate %dMHz, initiator ID %d\n", 177 (u_int32_t)le64toh(param.p.sci.maxsyncrate) / 1000, 178 le32toh(param.p.sci.initiatorid)); 179 #endif 180 181 sc->sc_openings = 1; 182 183 sc->sc_adapter.adapt_dev = &sc->sc_dv; 184 sc->sc_adapter.adapt_nchannels = 1; 185 sc->sc_adapter.adapt_openings = 1; 186 sc->sc_adapter.adapt_max_periph = 1; 187 sc->sc_adapter.adapt_ioctl = iopsp_ioctl; 188 sc->sc_adapter.adapt_minphys = minphys; 189 sc->sc_adapter.adapt_request = iopsp_scsipi_request; 190 191 memset(&sc->sc_channel, 0, sizeof(sc->sc_channel)); 192 sc->sc_channel.chan_adapter = &sc->sc_adapter; 193 sc->sc_channel.chan_bustype = &scsi_bustype; 194 sc->sc_channel.chan_channel = 0; 195 sc->sc_channel.chan_ntargets = fc ? 196 IOPSP_MAX_FC_TARGET : param.p.sci.maxdatawidth; 197 sc->sc_channel.chan_nluns = IOPSP_MAX_LUN; 198 sc->sc_channel.chan_id = le32toh(param.p.sci.initiatorid); 199 sc->sc_channel.chan_flags = SCSIPI_CHAN_NOSETTLE; 200 201 #ifdef I2OVERBOSE 202 /* 203 * Allocate the target map. Currently used for informational 204 * purposes only. 205 */ 206 size = sc->sc_channel.chan_ntargets * sizeof(struct iopsp_target); 207 sc->sc_targetmap = malloc(size, M_DEVBUF, M_NOWAIT|M_ZERO); 208 #endif 209 210 /* Build the two maps, and attach to scsipi. */ 211 if (iopsp_reconfig(self) != 0) { 212 printf("%s: configure failed\n", sc->sc_dv.dv_xname); 213 goto bad; 214 } 215 config_found(self, &sc->sc_channel, scsiprint); 216 return; 217 218 bad: 219 iop_initiator_unregister(iop, &sc->sc_ii); 220 } 221 222 /* 223 * Scan the LCT to determine which devices we control, and enter them into 224 * the maps. 225 */ 226 static int 227 iopsp_reconfig(struct device *dv) 228 { 229 struct iopsp_softc *sc; 230 struct iop_softc *iop; 231 struct i2o_lct_entry *le; 232 struct scsipi_channel *sc_chan; 233 struct { 234 struct i2o_param_op_results pr; 235 struct i2o_param_read_results prr; 236 struct i2o_param_scsi_device_info sdi; 237 } __attribute__ ((__packed__)) param; 238 u_int tid, nent, i, targ, lun, size, s, rv, bptid; 239 u_short *tidmap; 240 #ifdef I2OVERBOSE 241 struct iopsp_target *it; 242 int syncrate; 243 #endif 244 245 sc = (struct iopsp_softc *)dv; 246 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 247 sc_chan = &sc->sc_channel; 248 249 /* Anything to do? */ 250 if (iop->sc_chgind == sc->sc_chgind) 251 return (0); 252 253 /* 254 * Allocate memory for the target/LUN -> TID map. Use zero to 255 * denote absent targets (zero is the TID of the I2O executive, 256 * and we never address that here). 257 */ 258 size = sc_chan->chan_ntargets * (IOPSP_MAX_LUN) * sizeof(u_short); 259 if ((tidmap = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO)) == NULL) 260 return (ENOMEM); 261 262 #ifdef I2OVERBOSE 263 for (i = 0; i < sc_chan->chan_ntargets; i++) 264 sc->sc_targetmap[i].it_flags &= ~IT_PRESENT; 265 #endif 266 267 /* 268 * A quick hack to handle Intel's stacked bus port arrangement. 269 */ 270 bptid = sc->sc_ii.ii_tid; 271 nent = iop->sc_nlctent; 272 for (le = iop->sc_lct->entry; nent != 0; nent--, le++) 273 if ((le16toh(le->classid) & 4095) == 274 I2O_CLASS_BUS_ADAPTER_PORT && 275 (le32toh(le->usertid) & 4095) == bptid) { 276 bptid = le16toh(le->localtid) & 4095; 277 break; 278 } 279 280 nent = iop->sc_nlctent; 281 for (i = 0, le = iop->sc_lct->entry; i < nent; i++, le++) { 282 if ((le16toh(le->classid) & 4095) != I2O_CLASS_SCSI_PERIPHERAL) 283 continue; 284 if (((le32toh(le->usertid) >> 12) & 4095) != bptid) 285 continue; 286 tid = le16toh(le->localtid) & 4095; 287 288 rv = iop_field_get_all(iop, tid, I2O_PARAM_SCSI_DEVICE_INFO, 289 ¶m, sizeof(param), NULL); 290 if (rv != 0) 291 continue; 292 targ = le32toh(param.sdi.identifier); 293 lun = param.sdi.luninfo[1]; 294 #if defined(DIAGNOSTIC) || defined(I2ODEBUG) 295 if (targ >= sc_chan->chan_ntargets || 296 lun >= sc_chan->chan_nluns) { 297 printf("%s: target %d,%d (tid %d): bad target/LUN\n", 298 sc->sc_dv.dv_xname, targ, lun, tid); 299 continue; 300 } 301 #endif 302 303 #ifdef I2OVERBOSE 304 /* 305 * If we've already described this target, and nothing has 306 * changed, then don't describe it again. 307 */ 308 it = &sc->sc_targetmap[targ]; 309 it->it_flags |= IT_PRESENT; 310 syncrate = ((int)le64toh(param.sdi.negsyncrate) + 500) / 1000; 311 if (it->it_width != param.sdi.negdatawidth || 312 it->it_offset != param.sdi.negoffset || 313 it->it_syncrate != syncrate) { 314 it->it_width = param.sdi.negdatawidth; 315 it->it_offset = param.sdi.negoffset; 316 it->it_syncrate = syncrate; 317 318 printf("%s: target %d (tid %d): %d-bit, ", 319 sc->sc_dv.dv_xname, targ, tid, it->it_width); 320 if (it->it_syncrate == 0) 321 printf("asynchronous\n"); 322 else 323 printf("synchronous at %dMHz, offset 0x%x\n", 324 it->it_syncrate, it->it_offset); 325 } 326 #endif 327 328 /* Ignore the device if it's in use by somebody else. */ 329 if ((le32toh(le->usertid) & 4095) != I2O_TID_NONE) { 330 #ifdef I2OVERBOSE 331 if (sc->sc_tidmap == NULL || 332 IOPSP_TIDMAP(sc->sc_tidmap, targ, lun) != 333 IOPSP_TID_INUSE) 334 printf("%s: target %d,%d (tid %d): in use by" 335 " tid %d\n", sc->sc_dv.dv_xname, 336 targ, lun, tid, 337 le32toh(le->usertid) & 4095); 338 #endif 339 IOPSP_TIDMAP(tidmap, targ, lun) = IOPSP_TID_INUSE; 340 } else 341 IOPSP_TIDMAP(tidmap, targ, lun) = (u_short)tid; 342 } 343 344 #ifdef I2OVERBOSE 345 for (i = 0; i < sc_chan->chan_ntargets; i++) 346 if ((sc->sc_targetmap[i].it_flags & IT_PRESENT) == 0) 347 sc->sc_targetmap[i].it_width = 0; 348 #endif 349 350 /* Swap in the new map and return. */ 351 s = splbio(); 352 if (sc->sc_tidmap != NULL) 353 free(sc->sc_tidmap, M_DEVBUF); 354 sc->sc_tidmap = tidmap; 355 splx(s); 356 sc->sc_chgind = iop->sc_chgind; 357 return (0); 358 } 359 360 /* 361 * Re-scan the bus; to be called from a higher level (e.g. scsipi). 362 */ 363 static int 364 iopsp_rescan(struct iopsp_softc *sc) 365 { 366 struct iop_softc *iop; 367 struct iop_msg *im; 368 struct i2o_hba_bus_scan mf; 369 int rv; 370 371 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 372 373 mutex_enter(&iop->sc_conflock); 374 im = iop_msg_alloc(iop, IM_WAIT); 375 376 mf.msgflags = I2O_MSGFLAGS(i2o_hba_bus_scan); 377 mf.msgfunc = I2O_MSGFUNC(sc->sc_ii.ii_tid, I2O_HBA_BUS_SCAN); 378 mf.msgictx = sc->sc_ii.ii_ictx; 379 mf.msgtctx = im->im_tctx; 380 381 rv = iop_msg_post(iop, im, &mf, 5*60*1000); 382 iop_msg_free(iop, im); 383 if (rv != 0) 384 printf("%s: bus rescan failed (error %d)\n", 385 sc->sc_dv.dv_xname, rv); 386 387 if ((rv = iop_lct_get(iop)) == 0) 388 rv = iopsp_reconfig(&sc->sc_dv); 389 390 mutex_exit(&iop->sc_conflock); 391 return (rv); 392 } 393 394 /* 395 * Start a SCSI command. 396 */ 397 static void 398 iopsp_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 399 void *arg) 400 { 401 struct scsipi_xfer *xs; 402 struct scsipi_periph *periph; 403 struct iopsp_softc *sc; 404 struct iop_msg *im; 405 struct iop_softc *iop; 406 struct i2o_scsi_scb_exec *mf; 407 int error, flags, tid; 408 u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 409 410 sc = (void *)chan->chan_adapter->adapt_dev; 411 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 412 413 switch (req) { 414 case ADAPTER_REQ_RUN_XFER: 415 xs = arg; 416 periph = xs->xs_periph; 417 flags = xs->xs_control; 418 419 SC_DEBUG(periph, SCSIPI_DB2, ("iopsp_scsi_request run_xfer\n")); 420 421 tid = IOPSP_TIDMAP(sc->sc_tidmap, periph->periph_target, 422 periph->periph_lun); 423 if (tid == IOPSP_TID_ABSENT || tid == IOPSP_TID_INUSE) { 424 xs->error = XS_SELTIMEOUT; 425 scsipi_done(xs); 426 return; 427 } 428 429 /* Need to reset the target? */ 430 if ((flags & XS_CTL_RESET) != 0) { 431 if (iop_simple_cmd(iop, tid, I2O_SCSI_DEVICE_RESET, 432 sc->sc_ii.ii_ictx, 1, 30*1000) != 0) { 433 #ifdef I2ODEBUG 434 printf("%s: reset failed\n", 435 sc->sc_dv.dv_xname); 436 #endif 437 xs->error = XS_DRIVER_STUFFUP; 438 } else 439 xs->error = XS_NOERROR; 440 441 scsipi_done(xs); 442 return; 443 } 444 445 #if defined(I2ODEBUG) || defined(SCSIDEBUG) 446 if (xs->cmdlen > sizeof(mf->cdb)) 447 panic("%s: CDB too large", sc->sc_dv.dv_xname); 448 #endif 449 450 im = iop_msg_alloc(iop, IM_POLL_INTR | 451 IM_NOSTATUS | ((flags & XS_CTL_POLL) != 0 ? IM_POLL : 0)); 452 im->im_dvcontext = xs; 453 454 mf = (struct i2o_scsi_scb_exec *)mb; 455 mf->msgflags = I2O_MSGFLAGS(i2o_scsi_scb_exec); 456 mf->msgfunc = I2O_MSGFUNC(tid, I2O_SCSI_SCB_EXEC); 457 mf->msgictx = sc->sc_ii.ii_ictx; 458 mf->msgtctx = im->im_tctx; 459 mf->flags = xs->cmdlen | I2O_SCB_FLAG_ENABLE_DISCONNECT | 460 I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; 461 mf->datalen = xs->datalen; 462 memcpy(mf->cdb, xs->cmd, xs->cmdlen); 463 464 switch (xs->xs_tag_type) { 465 case MSG_ORDERED_Q_TAG: 466 mf->flags |= I2O_SCB_FLAG_ORDERED_QUEUE_TAG; 467 break; 468 case MSG_SIMPLE_Q_TAG: 469 mf->flags |= I2O_SCB_FLAG_SIMPLE_QUEUE_TAG; 470 break; 471 case MSG_HEAD_OF_Q_TAG: 472 mf->flags |= I2O_SCB_FLAG_HEAD_QUEUE_TAG; 473 break; 474 default: 475 break; 476 } 477 478 if (xs->datalen != 0) { 479 error = iop_msg_map_bio(iop, im, mb, xs->data, 480 xs->datalen, (flags & XS_CTL_DATA_OUT) == 0); 481 if (error) { 482 xs->error = XS_DRIVER_STUFFUP; 483 iop_msg_free(iop, im); 484 scsipi_done(xs); 485 return; 486 } 487 if ((flags & XS_CTL_DATA_IN) == 0) 488 mf->flags |= I2O_SCB_FLAG_XFER_TO_DEVICE; 489 else 490 mf->flags |= I2O_SCB_FLAG_XFER_FROM_DEVICE; 491 } 492 493 if (iop_msg_post(iop, im, mb, xs->timeout)) { 494 if (xs->datalen != 0) 495 iop_msg_unmap(iop, im); 496 iop_msg_free(iop, im); 497 xs->error = XS_DRIVER_STUFFUP; 498 scsipi_done(xs); 499 } 500 break; 501 502 case ADAPTER_REQ_GROW_RESOURCES: 503 /* 504 * Not supported. 505 */ 506 break; 507 508 case ADAPTER_REQ_SET_XFER_MODE: 509 /* 510 * The DDM takes care of this, and we can't modify its 511 * behaviour. 512 */ 513 break; 514 } 515 } 516 517 #ifdef notyet 518 /* 519 * Abort the specified I2O_SCSI_SCB_EXEC message and its associated SCB. 520 */ 521 static int 522 iopsp_scsi_abort(struct iopsp_softc *sc, int atid, struct iop_msg *aim) 523 { 524 struct iop_msg *im; 525 struct i2o_scsi_scb_abort mf; 526 struct iop_softc *iop; 527 int rv, s; 528 529 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 530 im = iop_msg_alloc(iop, IM_POLL); 531 532 mf.msgflags = I2O_MSGFLAGS(i2o_scsi_scb_abort); 533 mf.msgfunc = I2O_MSGFUNC(atid, I2O_SCSI_SCB_ABORT); 534 mf.msgictx = sc->sc_ii.ii_ictx; 535 mf.msgtctx = im->im_tctx; 536 mf.tctxabort = aim->im_tctx; 537 538 s = splbio(); 539 rv = iop_msg_post(iop, im, &mf, 30000); 540 splx(s); 541 iop_msg_free(iop, im); 542 return (rv); 543 } 544 #endif 545 546 /* 547 * We have a message which has been processed and replied to by the IOP - 548 * deal with it. 549 */ 550 static void 551 iopsp_intr(struct device *dv, struct iop_msg *im, void *reply) 552 { 553 struct scsipi_xfer *xs; 554 struct iopsp_softc *sc; 555 struct i2o_scsi_reply *rb; 556 struct iop_softc *iop; 557 u_int sl; 558 559 sc = (struct iopsp_softc *)dv; 560 xs = (struct scsipi_xfer *)im->im_dvcontext; 561 iop = (struct iop_softc *)device_parent(dv); 562 rb = reply; 563 564 SC_DEBUG(xs->xs_periph, SCSIPI_DB2, ("iopsp_intr\n")); 565 566 if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) { 567 xs->error = XS_DRIVER_STUFFUP; 568 xs->resid = xs->datalen; 569 } else { 570 if (rb->hbastatus != I2O_SCSI_DSC_SUCCESS) { 571 switch (rb->hbastatus) { 572 case I2O_SCSI_DSC_ADAPTER_BUSY: 573 case I2O_SCSI_DSC_SCSI_BUS_RESET: 574 case I2O_SCSI_DSC_BUS_BUSY: 575 xs->error = XS_BUSY; 576 break; 577 case I2O_SCSI_DSC_SELECTION_TIMEOUT: 578 xs->error = XS_SELTIMEOUT; 579 break; 580 case I2O_SCSI_DSC_COMMAND_TIMEOUT: 581 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: 582 case I2O_SCSI_DSC_LUN_INVALID: 583 case I2O_SCSI_DSC_SCSI_TID_INVALID: 584 xs->error = XS_TIMEOUT; 585 break; 586 default: 587 xs->error = XS_DRIVER_STUFFUP; 588 break; 589 } 590 printf("%s: HBA status 0x%02x\n", sc->sc_dv.dv_xname, 591 rb->hbastatus); 592 } else if (rb->scsistatus != SCSI_OK) { 593 switch (rb->scsistatus) { 594 case SCSI_CHECK: 595 xs->error = XS_SENSE; 596 sl = le32toh(rb->senselen); 597 if (sl > sizeof(xs->sense.scsi_sense)) 598 sl = sizeof(xs->sense.scsi_sense); 599 memcpy(&xs->sense.scsi_sense, rb->sense, sl); 600 break; 601 case SCSI_QUEUE_FULL: 602 case SCSI_BUSY: 603 xs->error = XS_BUSY; 604 break; 605 default: 606 xs->error = XS_DRIVER_STUFFUP; 607 break; 608 } 609 } else 610 xs->error = XS_NOERROR; 611 612 xs->resid = xs->datalen - le32toh(rb->datalen); 613 xs->status = rb->scsistatus; 614 } 615 616 /* Free the message wrapper and pass the news to scsipi. */ 617 if (xs->datalen != 0) 618 iop_msg_unmap(iop, im); 619 iop_msg_free(iop, im); 620 621 scsipi_done(xs); 622 } 623 624 /* 625 * ioctl hook; used here only to initiate low-level rescans. 626 */ 627 static int 628 iopsp_ioctl(struct scsipi_channel *chan, u_long cmd, caddr_t data, 629 int flag, struct proc *p) 630 { 631 int rv; 632 633 switch (cmd) { 634 case SCBUSIOLLSCAN: 635 /* 636 * If it's boot time, the bus will have been scanned and the 637 * maps built. Locking would stop re-configuration, but we 638 * want to fake success. 639 */ 640 if (p != &proc0) 641 rv = iopsp_rescan( 642 (struct iopsp_softc *)chan->chan_adapter->adapt_dev); 643 else 644 rv = 0; 645 break; 646 647 default: 648 rv = ENOTTY; 649 break; 650 } 651 652 return (rv); 653 } 654 655 /* 656 * The number of openings available to us has changed, so inform scsipi. 657 */ 658 static void 659 iopsp_adjqparam(struct device *dv, int mpi) 660 { 661 struct iopsp_softc *sc; 662 int s; 663 664 sc = (struct iopsp_softc *)dv; 665 666 s = splbio(); 667 sc->sc_adapter.adapt_openings += mpi - sc->sc_openings; 668 sc->sc_openings = mpi; 669 splx(s); 670 } 671
Indexes created Tue Sep 30 17:09:57 GMT 2025