iopsp.c revision 1.31
1 /* $NetBSD: iopsp.c,v 1.31 2008/04/06 20:26:21 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001, 2007 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 1.31 2008/04/06 20:26:21 cegger Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/device.h> 51 #include <sys/queue.h> 52 #include <sys/proc.h> 53 #include <sys/buf.h> 54 #include <sys/endian.h> 55 #include <sys/malloc.h> 56 #include <sys/scsiio.h> 57 58 #include <sys/bswap.h> 59 #include <sys/bus.h> 60 61 #include <dev/scsipi/scsi_all.h> 62 #include <dev/scsipi/scsi_disk.h> 63 #include <dev/scsipi/scsipi_all.h> 64 #include <dev/scsipi/scsiconf.h> 65 #include <dev/scsipi/scsi_message.h> 66 67 #include <dev/i2o/i2o.h> 68 #include <dev/i2o/iopio.h> 69 #include <dev/i2o/iopvar.h> 70 #include <dev/i2o/iopspvar.h> 71 72 static void iopsp_adjqparam(struct device *, int); 73 static void iopsp_attach(struct device *, struct device *, void *); 74 static void iopsp_intr(struct device *, struct iop_msg *, void *); 75 static int iopsp_ioctl(struct scsipi_channel *, u_long, 76 void *, int, struct proc *); 77 static int iopsp_match(struct device *, struct cfdata *, void *); 78 static int iopsp_rescan(struct iopsp_softc *); 79 static int iopsp_reconfig(struct device *); 80 static void iopsp_scsipi_request(struct scsipi_channel *, 81 scsipi_adapter_req_t, void *); 82 83 CFATTACH_DECL(iopsp, sizeof(struct iopsp_softc), 84 iopsp_match, iopsp_attach, NULL, NULL); 85 86 /* 87 * Match a supported device. 88 */ 89 static int 90 iopsp_match(struct device *parent, struct cfdata *match, void *aux) 91 { 92 struct iop_attach_args *ia; 93 struct { 94 struct i2o_param_op_results pr; 95 struct i2o_param_read_results prr; 96 struct i2o_param_hba_ctlr_info ci; 97 } __attribute__ ((__packed__)) param; 98 99 ia = aux; 100 101 if (ia->ia_class != I2O_CLASS_BUS_ADAPTER_PORT) 102 return (0); 103 104 if (iop_field_get_all((struct iop_softc *)parent, ia->ia_tid, 105 I2O_PARAM_HBA_CTLR_INFO, ¶m, sizeof(param), NULL) != 0) 106 return (0); 107 108 return (param.ci.bustype == I2O_HBA_BUS_SCSI || 109 param.ci.bustype == I2O_HBA_BUS_FCA); 110 } 111 112 /* 113 * Attach a supported device. 114 */ 115 static void 116 iopsp_attach(struct device *parent, struct device *self, void *aux) 117 { 118 struct iop_attach_args *ia; 119 struct iopsp_softc *sc; 120 struct iop_softc *iop; 121 struct { 122 struct i2o_param_op_results pr; 123 struct i2o_param_read_results prr; 124 union { 125 struct i2o_param_hba_ctlr_info ci; 126 struct i2o_param_hba_scsi_ctlr_info sci; 127 struct i2o_param_hba_scsi_port_info spi; 128 } p; 129 } __attribute__ ((__packed__)) param; 130 int fc, rv; 131 int size; 132 133 ia = (struct iop_attach_args *)aux; 134 sc = device_private(self); 135 iop = device_private(parent); 136 137 /* Register us as an initiator. */ 138 sc->sc_ii.ii_dv = self; 139 sc->sc_ii.ii_intr = iopsp_intr; 140 sc->sc_ii.ii_flags = 0; 141 sc->sc_ii.ii_tid = ia->ia_tid; 142 sc->sc_ii.ii_reconfig = iopsp_reconfig; 143 sc->sc_ii.ii_adjqparam = iopsp_adjqparam; 144 iop_initiator_register(iop, &sc->sc_ii); 145 146 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_CTLR_INFO, 147 ¶m, sizeof(param), NULL); 148 if (rv != 0) 149 goto bad; 150 151 fc = (param.p.ci.bustype == I2O_HBA_BUS_FCA); 152 153 /* 154 * Say what the device is. If we can find out what the controling 155 * device is, say what that is too. 156 */ 157 aprint_normal(": SCSI port"); 158 iop_print_ident(iop, ia->ia_tid); 159 aprint_normal("\n"); 160 161 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_SCSI_CTLR_INFO, 162 ¶m, sizeof(param), NULL); 163 if (rv != 0) 164 goto bad; 165 166 aprint_normal_dev(&sc->sc_dv, ""); 167 if (fc) 168 aprint_normal("FC"); 169 else 170 aprint_normal("%d-bit", param.p.sci.maxdatawidth); 171 aprint_normal(", max sync rate %dMHz, initiator ID %d\n", 172 (u_int32_t)le64toh(param.p.sci.maxsyncrate) / 1000, 173 le32toh(param.p.sci.initiatorid)); 174 175 sc->sc_openings = 1; 176 177 sc->sc_adapter.adapt_dev = &sc->sc_dv; 178 sc->sc_adapter.adapt_nchannels = 1; 179 sc->sc_adapter.adapt_openings = 1; 180 sc->sc_adapter.adapt_max_periph = 1; 181 sc->sc_adapter.adapt_ioctl = iopsp_ioctl; 182 sc->sc_adapter.adapt_minphys = minphys; 183 sc->sc_adapter.adapt_request = iopsp_scsipi_request; 184 185 memset(&sc->sc_channel, 0, sizeof(sc->sc_channel)); 186 sc->sc_channel.chan_adapter = &sc->sc_adapter; 187 sc->sc_channel.chan_bustype = &scsi_bustype; 188 sc->sc_channel.chan_channel = 0; 189 sc->sc_channel.chan_ntargets = fc ? 190 IOPSP_MAX_FC_TARGET : param.p.sci.maxdatawidth; 191 sc->sc_channel.chan_nluns = IOPSP_MAX_LUN; 192 sc->sc_channel.chan_id = le32toh(param.p.sci.initiatorid); 193 sc->sc_channel.chan_flags = SCSIPI_CHAN_NOSETTLE; 194 195 /* 196 * Allocate the target map. Currently used for informational 197 * purposes only. 198 */ 199 size = sc->sc_channel.chan_ntargets * sizeof(struct iopsp_target); 200 sc->sc_targetmap = malloc(size, M_DEVBUF, M_NOWAIT|M_ZERO); 201 202 /* Build the two maps, and attach to scsipi. */ 203 if (iopsp_reconfig(self) != 0) { 204 aprint_error_dev(&sc->sc_dv, "configure failed\n"); 205 goto bad; 206 } 207 config_found(self, &sc->sc_channel, scsiprint); 208 return; 209 210 bad: 211 iop_initiator_unregister(iop, &sc->sc_ii); 212 } 213 214 /* 215 * Scan the LCT to determine which devices we control, and enter them into 216 * the maps. 217 */ 218 static int 219 iopsp_reconfig(struct device *dv) 220 { 221 struct iopsp_softc *sc; 222 struct iop_softc *iop; 223 struct i2o_lct_entry *le; 224 struct scsipi_channel *sc_chan; 225 struct { 226 struct i2o_param_op_results pr; 227 struct i2o_param_read_results prr; 228 struct i2o_param_scsi_device_info sdi; 229 } __attribute__ ((__packed__)) param; 230 u_int tid, nent, i, targ, lun, size, rv, bptid; 231 u_short *tidmap; 232 void *tofree; 233 struct iopsp_target *it; 234 int syncrate; 235 236 sc = (struct iopsp_softc *)dv; 237 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 238 sc_chan = &sc->sc_channel; 239 240 KASSERT(mutex_owned(&iop->sc_conflock)); 241 242 /* Anything to do? */ 243 if (iop->sc_chgind == sc->sc_chgind) 244 return (0); 245 246 /* 247 * Allocate memory for the target/LUN -> TID map. Use zero to 248 * denote absent targets (zero is the TID of the I2O executive, 249 * and we never address that here). 250 */ 251 size = sc_chan->chan_ntargets * (IOPSP_MAX_LUN) * sizeof(u_short); 252 if ((tidmap = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO)) == NULL) 253 return (ENOMEM); 254 255 for (i = 0; i < sc_chan->chan_ntargets; i++) 256 sc->sc_targetmap[i].it_flags &= ~IT_PRESENT; 257 258 /* 259 * A quick hack to handle Intel's stacked bus port arrangement. 260 */ 261 bptid = sc->sc_ii.ii_tid; 262 nent = iop->sc_nlctent; 263 for (le = iop->sc_lct->entry; nent != 0; nent--, le++) 264 if ((le16toh(le->classid) & 4095) == 265 I2O_CLASS_BUS_ADAPTER_PORT && 266 (le32toh(le->usertid) & 4095) == bptid) { 267 bptid = le16toh(le->localtid) & 4095; 268 break; 269 } 270 271 nent = iop->sc_nlctent; 272 for (i = 0, le = iop->sc_lct->entry; i < nent; i++, le++) { 273 if ((le16toh(le->classid) & 4095) != I2O_CLASS_SCSI_PERIPHERAL) 274 continue; 275 if (((le32toh(le->usertid) >> 12) & 4095) != bptid) 276 continue; 277 tid = le16toh(le->localtid) & 4095; 278 279 rv = iop_field_get_all(iop, tid, I2O_PARAM_SCSI_DEVICE_INFO, 280 ¶m, sizeof(param), NULL); 281 if (rv != 0) 282 continue; 283 targ = le32toh(param.sdi.identifier); 284 lun = param.sdi.luninfo[1]; 285 #if defined(DIAGNOSTIC) || defined(I2ODEBUG) 286 if (targ >= sc_chan->chan_ntargets || 287 lun >= sc_chan->chan_nluns) { 288 aprint_error_dev(&sc->sc_dv, "target %d,%d (tid %d): " 289 "bad target/LUN\n", targ, lun, tid); 290 continue; 291 } 292 #endif 293 294 /* 295 * If we've already described this target, and nothing has 296 * changed, then don't describe it again. 297 */ 298 it = &sc->sc_targetmap[targ]; 299 it->it_flags |= IT_PRESENT; 300 syncrate = ((int)le64toh(param.sdi.negsyncrate) + 500) / 1000; 301 if (it->it_width != param.sdi.negdatawidth || 302 it->it_offset != param.sdi.negoffset || 303 it->it_syncrate != syncrate) { 304 it->it_width = param.sdi.negdatawidth; 305 it->it_offset = param.sdi.negoffset; 306 it->it_syncrate = syncrate; 307 308 aprint_verbose_dev(&sc->sc_dv, "target %d (tid %d): %d-bit, ", 309 targ, tid, it->it_width); 310 if (it->it_syncrate == 0) 311 aprint_verbose("asynchronous\n"); 312 else 313 aprint_verbose("synchronous at %dMHz, " 314 "offset 0x%x\n", it->it_syncrate, 315 it->it_offset); 316 } 317 318 /* Ignore the device if it's in use by somebody else. */ 319 if ((le32toh(le->usertid) & 4095) != I2O_TID_NONE) { 320 if (sc->sc_tidmap == NULL || 321 IOPSP_TIDMAP(sc->sc_tidmap, targ, lun) != 322 IOPSP_TID_INUSE) { 323 aprint_verbose_dev(&sc->sc_dv, "target %d,%d (tid %d): " 324 "in use by tid %d\n", 325 targ, lun, tid, 326 le32toh(le->usertid) & 4095); 327 } 328 IOPSP_TIDMAP(tidmap, targ, lun) = IOPSP_TID_INUSE; 329 } else 330 IOPSP_TIDMAP(tidmap, targ, lun) = (u_short)tid; 331 } 332 333 for (i = 0; i < sc_chan->chan_ntargets; i++) 334 if ((sc->sc_targetmap[i].it_flags & IT_PRESENT) == 0) 335 sc->sc_targetmap[i].it_width = 0; 336 337 /* Swap in the new map and return. */ 338 mutex_spin_enter(&iop->sc_intrlock); 339 tofree = sc->sc_tidmap; 340 sc->sc_tidmap = tidmap; 341 mutex_spin_exit(&iop->sc_intrlock); 342 343 if (tofree != NULL) 344 free(tofree, M_DEVBUF); 345 sc->sc_chgind = iop->sc_chgind; 346 return (0); 347 } 348 349 /* 350 * Re-scan the bus; to be called from a higher level (e.g. scsipi). 351 */ 352 static int 353 iopsp_rescan(struct iopsp_softc *sc) 354 { 355 struct iop_softc *iop; 356 struct iop_msg *im; 357 struct i2o_hba_bus_scan mf; 358 int rv; 359 360 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 361 362 mutex_enter(&iop->sc_conflock); 363 im = iop_msg_alloc(iop, IM_WAIT); 364 365 mf.msgflags = I2O_MSGFLAGS(i2o_hba_bus_scan); 366 mf.msgfunc = I2O_MSGFUNC(sc->sc_ii.ii_tid, I2O_HBA_BUS_SCAN); 367 mf.msgictx = sc->sc_ii.ii_ictx; 368 mf.msgtctx = im->im_tctx; 369 370 rv = iop_msg_post(iop, im, &mf, 5*60*1000); 371 iop_msg_free(iop, im); 372 if (rv != 0) 373 aprint_error_dev(&sc->sc_dv, "bus rescan failed (error %d)\n", 374 rv); 375 376 if ((rv = iop_lct_get(iop)) == 0) 377 rv = iopsp_reconfig(&sc->sc_dv); 378 379 mutex_exit(&iop->sc_conflock); 380 return (rv); 381 } 382 383 /* 384 * Start a SCSI command. 385 */ 386 static void 387 iopsp_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 388 void *arg) 389 { 390 struct scsipi_xfer *xs; 391 struct scsipi_periph *periph; 392 struct iopsp_softc *sc; 393 struct iop_msg *im; 394 struct iop_softc *iop; 395 struct i2o_scsi_scb_exec *mf; 396 int error, flags, tid; 397 u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 398 399 sc = (void *)chan->chan_adapter->adapt_dev; 400 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 401 402 switch (req) { 403 case ADAPTER_REQ_RUN_XFER: 404 xs = arg; 405 periph = xs->xs_periph; 406 flags = xs->xs_control; 407 408 SC_DEBUG(periph, SCSIPI_DB2, ("iopsp_scsi_request run_xfer\n")); 409 410 tid = IOPSP_TIDMAP(sc->sc_tidmap, periph->periph_target, 411 periph->periph_lun); 412 if (tid == IOPSP_TID_ABSENT || tid == IOPSP_TID_INUSE) { 413 xs->error = XS_SELTIMEOUT; 414 scsipi_done(xs); 415 return; 416 } 417 418 /* Need to reset the target? */ 419 if ((flags & XS_CTL_RESET) != 0) { 420 if (iop_simple_cmd(iop, tid, I2O_SCSI_DEVICE_RESET, 421 sc->sc_ii.ii_ictx, 1, 30*1000) != 0) { 422 aprint_error_dev(&sc->sc_dv, "reset failed\n"); 423 xs->error = XS_DRIVER_STUFFUP; 424 } else 425 xs->error = XS_NOERROR; 426 427 scsipi_done(xs); 428 return; 429 } 430 431 #if defined(I2ODEBUG) || defined(SCSIDEBUG) 432 if (xs->cmdlen > sizeof(mf->cdb)) 433 panic("%s: CDB too large", device_xname(&sc->sc_dv)); 434 #endif 435 436 im = iop_msg_alloc(iop, IM_POLL_INTR | 437 IM_NOSTATUS | ((flags & XS_CTL_POLL) != 0 ? IM_POLL : 0)); 438 im->im_dvcontext = xs; 439 440 mf = (struct i2o_scsi_scb_exec *)mb; 441 mf->msgflags = I2O_MSGFLAGS(i2o_scsi_scb_exec); 442 mf->msgfunc = I2O_MSGFUNC(tid, I2O_SCSI_SCB_EXEC); 443 mf->msgictx = sc->sc_ii.ii_ictx; 444 mf->msgtctx = im->im_tctx; 445 mf->flags = xs->cmdlen | I2O_SCB_FLAG_ENABLE_DISCONNECT | 446 I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; 447 mf->datalen = xs->datalen; 448 memcpy(mf->cdb, xs->cmd, xs->cmdlen); 449 450 switch (xs->xs_tag_type) { 451 case MSG_ORDERED_Q_TAG: 452 mf->flags |= I2O_SCB_FLAG_ORDERED_QUEUE_TAG; 453 break; 454 case MSG_SIMPLE_Q_TAG: 455 mf->flags |= I2O_SCB_FLAG_SIMPLE_QUEUE_TAG; 456 break; 457 case MSG_HEAD_OF_Q_TAG: 458 mf->flags |= I2O_SCB_FLAG_HEAD_QUEUE_TAG; 459 break; 460 default: 461 break; 462 } 463 464 if (xs->datalen != 0) { 465 error = iop_msg_map_bio(iop, im, mb, xs->data, 466 xs->datalen, (flags & XS_CTL_DATA_OUT) == 0); 467 if (error) { 468 xs->error = XS_DRIVER_STUFFUP; 469 iop_msg_free(iop, im); 470 scsipi_done(xs); 471 return; 472 } 473 if ((flags & XS_CTL_DATA_IN) == 0) 474 mf->flags |= I2O_SCB_FLAG_XFER_TO_DEVICE; 475 else 476 mf->flags |= I2O_SCB_FLAG_XFER_FROM_DEVICE; 477 } 478 479 if (iop_msg_post(iop, im, mb, xs->timeout)) { 480 if (xs->datalen != 0) 481 iop_msg_unmap(iop, im); 482 iop_msg_free(iop, im); 483 xs->error = XS_DRIVER_STUFFUP; 484 scsipi_done(xs); 485 } 486 break; 487 488 case ADAPTER_REQ_GROW_RESOURCES: 489 /* 490 * Not supported. 491 */ 492 break; 493 494 case ADAPTER_REQ_SET_XFER_MODE: 495 /* 496 * The DDM takes care of this, and we can't modify its 497 * behaviour. 498 */ 499 break; 500 } 501 } 502 503 #ifdef notyet 504 /* 505 * Abort the specified I2O_SCSI_SCB_EXEC message and its associated SCB. 506 */ 507 static int 508 iopsp_scsi_abort(struct iopsp_softc *sc, int atid, struct iop_msg *aim) 509 { 510 struct iop_msg *im; 511 struct i2o_scsi_scb_abort mf; 512 struct iop_softc *iop; 513 int rv, s; 514 515 iop = (struct iop_softc *)device_parent(&sc->sc_dv); 516 im = iop_msg_alloc(iop, IM_POLL); 517 518 mf.msgflags = I2O_MSGFLAGS(i2o_scsi_scb_abort); 519 mf.msgfunc = I2O_MSGFUNC(atid, I2O_SCSI_SCB_ABORT); 520 mf.msgictx = sc->sc_ii.ii_ictx; 521 mf.msgtctx = im->im_tctx; 522 mf.tctxabort = aim->im_tctx; 523 524 rv = iop_msg_post(iop, im, &mf, 30000); 525 iop_msg_free(iop, im); 526 527 return (rv); 528 } 529 #endif 530 531 /* 532 * We have a message which has been processed and replied to by the IOP - 533 * deal with it. 534 */ 535 static void 536 iopsp_intr(struct device *dv, struct iop_msg *im, void *reply) 537 { 538 struct scsipi_xfer *xs; 539 struct iopsp_softc *sc; 540 struct i2o_scsi_reply *rb; 541 struct iop_softc *iop; 542 u_int sl; 543 544 sc = (struct iopsp_softc *)dv; 545 xs = (struct scsipi_xfer *)im->im_dvcontext; 546 iop = (struct iop_softc *)device_parent(dv); 547 rb = reply; 548 549 SC_DEBUG(xs->xs_periph, SCSIPI_DB2, ("iopsp_intr\n")); 550 551 if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) { 552 xs->error = XS_DRIVER_STUFFUP; 553 xs->resid = xs->datalen; 554 } else { 555 if (rb->hbastatus != I2O_SCSI_DSC_SUCCESS) { 556 switch (rb->hbastatus) { 557 case I2O_SCSI_DSC_ADAPTER_BUSY: 558 case I2O_SCSI_DSC_SCSI_BUS_RESET: 559 case I2O_SCSI_DSC_BUS_BUSY: 560 xs->error = XS_BUSY; 561 break; 562 case I2O_SCSI_DSC_SELECTION_TIMEOUT: 563 xs->error = XS_SELTIMEOUT; 564 break; 565 case I2O_SCSI_DSC_COMMAND_TIMEOUT: 566 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: 567 case I2O_SCSI_DSC_LUN_INVALID: 568 case I2O_SCSI_DSC_SCSI_TID_INVALID: 569 xs->error = XS_TIMEOUT; 570 break; 571 default: 572 xs->error = XS_DRIVER_STUFFUP; 573 break; 574 } 575 aprint_error_dev(&sc->sc_dv, "HBA status 0x%02x\n", 576 rb->hbastatus); 577 } else if (rb->scsistatus != SCSI_OK) { 578 switch (rb->scsistatus) { 579 case SCSI_CHECK: 580 xs->error = XS_SENSE; 581 sl = le32toh(rb->senselen); 582 if (sl > sizeof(xs->sense.scsi_sense)) 583 sl = sizeof(xs->sense.scsi_sense); 584 memcpy(&xs->sense.scsi_sense, rb->sense, sl); 585 break; 586 case SCSI_QUEUE_FULL: 587 case SCSI_BUSY: 588 xs->error = XS_BUSY; 589 break; 590 default: 591 xs->error = XS_DRIVER_STUFFUP; 592 break; 593 } 594 } else 595 xs->error = XS_NOERROR; 596 597 xs->resid = xs->datalen - le32toh(rb->datalen); 598 xs->status = rb->scsistatus; 599 } 600 601 /* Free the message wrapper and pass the news to scsipi. */ 602 if (xs->datalen != 0) 603 iop_msg_unmap(iop, im); 604 iop_msg_free(iop, im); 605 606 scsipi_done(xs); 607 } 608 609 /* 610 * ioctl hook; used here only to initiate low-level rescans. 611 */ 612 static int 613 iopsp_ioctl(struct scsipi_channel *chan, u_long cmd, void *data, 614 int flag, struct proc *p) 615 { 616 int rv; 617 618 switch (cmd) { 619 case SCBUSIOLLSCAN: 620 /* 621 * If it's boot time, the bus will have been scanned and the 622 * maps built. Locking would stop re-configuration, but we 623 * want to fake success. 624 */ 625 if (curlwp != &lwp0) 626 rv = iopsp_rescan( 627 (struct iopsp_softc *)chan->chan_adapter->adapt_dev); 628 else 629 rv = 0; 630 break; 631 632 default: 633 rv = ENOTTY; 634 break; 635 } 636 637 return (rv); 638 } 639 640 /* 641 * The number of openings available to us has changed, so inform scsipi. 642 */ 643 static void 644 iopsp_adjqparam(struct device *dv, int mpi) 645 { 646 struct iopsp_softc *sc; 647 struct iop_softc *iop; 648 649 sc = device_private(dv); 650 iop = device_private(device_parent(dv)); 651 652 mutex_spin_enter(&iop->sc_intrlock); 653 sc->sc_adapter.adapt_openings += mpi - sc->sc_openings; 654 sc->sc_openings = mpi; 655 mutex_spin_exit(&iop->sc_intrlock); 656 } 657
Indexes created Tue Sep 30 17:09:57 GMT 2025