Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/i2o/iopsp.c
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1 /* $NetBSD: iopsp.c,v 1.18 2003/06/13 02:33:09 thorpej 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 1.18 2003/06/13 02:33:09 thorpej 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 #include <sys/lock.h> 60 61 #include <machine/bswap.h> 62 #include <machine/bus.h> 63 64 #include <dev/scsipi/scsi_all.h> 65 #include <dev/scsipi/scsi_disk.h> 66 #include <dev/scsipi/scsipi_all.h> 67 #include <dev/scsipi/scsiconf.h> 68 #include <dev/scsipi/scsi_message.h> 69 70 #include <dev/i2o/i2o.h> 71 #include <dev/i2o/iopio.h> 72 #include <dev/i2o/iopvar.h> 73 #include <dev/i2o/iopspvar.h> 74 75 static void iopsp_adjqparam(struct device *, int); 76 static void iopsp_attach(struct device *, struct device *, void *); 77 static void iopsp_intr(struct device *, struct iop_msg *, void *); 78 static int iopsp_ioctl(struct scsipi_channel *, u_long, 79 caddr_t, int, struct proc *); 80 static int iopsp_match(struct device *, struct cfdata *, void *); 81 static int iopsp_rescan(struct iopsp_softc *); 82 static int iopsp_reconfig(struct device *); 83 static void iopsp_scsipi_request(struct scsipi_channel *, 84 scsipi_adapter_req_t, void *); 85 86 CFATTACH_DECL(iopsp, sizeof(struct iopsp_softc), 87 iopsp_match, iopsp_attach, NULL, NULL); 88 89 /* 90 * Match a supported device. 91 */ 92 static int 93 iopsp_match(struct device *parent, struct cfdata *match, void *aux) 94 { 95 struct iop_attach_args *ia; 96 struct { 97 struct i2o_param_op_results pr; 98 struct i2o_param_read_results prr; 99 struct i2o_param_hba_ctlr_info ci; 100 } __attribute__ ((__packed__)) param; 101 102 ia = aux; 103 104 if (ia->ia_class != I2O_CLASS_BUS_ADAPTER_PORT) 105 return (0); 106 107 if (iop_field_get_all((struct iop_softc *)parent, ia->ia_tid, 108 I2O_PARAM_HBA_CTLR_INFO, ¶m, sizeof(param), NULL) != 0) 109 return (0); 110 111 return (param.ci.bustype == I2O_HBA_BUS_SCSI || 112 param.ci.bustype == I2O_HBA_BUS_FCA); 113 } 114 115 /* 116 * Attach a supported device. 117 */ 118 static void 119 iopsp_attach(struct device *parent, struct device *self, void *aux) 120 { 121 struct iop_attach_args *ia; 122 struct iopsp_softc *sc; 123 struct iop_softc *iop; 124 struct { 125 struct i2o_param_op_results pr; 126 struct i2o_param_read_results prr; 127 union { 128 struct i2o_param_hba_ctlr_info ci; 129 struct i2o_param_hba_scsi_ctlr_info sci; 130 struct i2o_param_hba_scsi_port_info spi; 131 } p; 132 } __attribute__ ((__packed__)) param; 133 int fc, rv; 134 #ifdef I2OVERBOSE 135 int size; 136 #endif 137 138 ia = (struct iop_attach_args *)aux; 139 sc = (struct iopsp_softc *)self; 140 iop = (struct iop_softc *)parent; 141 142 /* Register us as an initiator. */ 143 sc->sc_ii.ii_dv = self; 144 sc->sc_ii.ii_intr = iopsp_intr; 145 sc->sc_ii.ii_flags = 0; 146 sc->sc_ii.ii_tid = ia->ia_tid; 147 sc->sc_ii.ii_reconfig = iopsp_reconfig; 148 sc->sc_ii.ii_adjqparam = iopsp_adjqparam; 149 iop_initiator_register(iop, &sc->sc_ii); 150 151 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_CTLR_INFO, 152 ¶m, sizeof(param), NULL); 153 if (rv != 0) 154 goto bad; 155 156 fc = (param.p.ci.bustype == I2O_HBA_BUS_FCA); 157 158 /* 159 * Say what the device is. If we can find out what the controling 160 * device is, say what that is too. 161 */ 162 printf(": SCSI port"); 163 iop_print_ident(iop, ia->ia_tid); 164 printf("\n"); 165 166 rv = iop_field_get_all(iop, ia->ia_tid, I2O_PARAM_HBA_SCSI_CTLR_INFO, 167 ¶m, sizeof(param), NULL); 168 if (rv != 0) 169 goto bad; 170 171 #ifdef I2OVERBOSE 172 printf("%s: ", sc->sc_dv.dv_xname); 173 if (fc) 174 printf("FC"); 175 else 176 printf("%d-bit", param.p.sci.maxdatawidth); 177 printf(", max sync rate %dMHz, initiator ID %d\n", 178 (u_int32_t)le64toh(param.p.sci.maxsyncrate) / 1000, 179 le32toh(param.p.sci.initiatorid)); 180 #endif 181 182 sc->sc_openings = 1; 183 184 sc->sc_adapter.adapt_dev = &sc->sc_dv; 185 sc->sc_adapter.adapt_nchannels = 1; 186 sc->sc_adapter.adapt_openings = 1; 187 sc->sc_adapter.adapt_max_periph = 1; 188 sc->sc_adapter.adapt_ioctl = iopsp_ioctl; 189 sc->sc_adapter.adapt_minphys = minphys; 190 sc->sc_adapter.adapt_request = iopsp_scsipi_request; 191 192 memset(&sc->sc_channel, 0, sizeof(sc->sc_channel)); 193 sc->sc_channel.chan_adapter = &sc->sc_adapter; 194 sc->sc_channel.chan_bustype = &scsi_bustype; 195 sc->sc_channel.chan_channel = 0; 196 sc->sc_channel.chan_ntargets = fc ? 197 IOPSP_MAX_FC_TARGET : param.p.sci.maxdatawidth; 198 sc->sc_channel.chan_nluns = IOPSP_MAX_LUN; 199 sc->sc_channel.chan_id = le32toh(param.p.sci.initiatorid); 200 sc->sc_channel.chan_flags = SCSIPI_CHAN_NOSETTLE; 201 202 #ifdef I2OVERBOSE 203 /* 204 * Allocate the target map. Currently used for informational 205 * purposes only. 206 */ 207 size = sc->sc_channel.chan_ntargets * sizeof(struct iopsp_target); 208 sc->sc_targetmap = malloc(size, M_DEVBUF, M_NOWAIT|M_ZERO); 209 #endif 210 211 /* Build the two maps, and attach to scsipi. */ 212 if (iopsp_reconfig(self) != 0) { 213 printf("%s: configure failed\n", sc->sc_dv.dv_xname); 214 goto bad; 215 } 216 config_found(self, &sc->sc_channel, scsiprint); 217 return; 218 219 bad: 220 iop_initiator_unregister(iop, &sc->sc_ii); 221 } 222 223 /* 224 * Scan the LCT to determine which devices we control, and enter them into 225 * the maps. 226 */ 227 static int 228 iopsp_reconfig(struct device *dv) 229 { 230 struct iopsp_softc *sc; 231 struct iop_softc *iop; 232 struct i2o_lct_entry *le; 233 struct scsipi_channel *sc_chan; 234 struct { 235 struct i2o_param_op_results pr; 236 struct i2o_param_read_results prr; 237 struct i2o_param_scsi_device_info sdi; 238 } __attribute__ ((__packed__)) param; 239 u_int tid, nent, i, targ, lun, size, s, rv, bptid; 240 u_short *tidmap; 241 #ifdef I2OVERBOSE 242 struct iopsp_target *it; 243 int syncrate; 244 #endif 245 246 sc = (struct iopsp_softc *)dv; 247 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 248 sc_chan = &sc->sc_channel; 249 250 /* Anything to do? */ 251 if (iop->sc_chgind == sc->sc_chgind) 252 return (0); 253 254 /* 255 * Allocate memory for the target/LUN -> TID map. Use zero to 256 * denote absent targets (zero is the TID of the I2O executive, 257 * and we never address that here). 258 */ 259 size = sc_chan->chan_ntargets * (IOPSP_MAX_LUN) * sizeof(u_short); 260 if ((tidmap = malloc(size, M_DEVBUF, M_WAITOK|M_ZERO)) == NULL) 261 return (ENOMEM); 262 263 #ifdef I2OVERBOSE 264 for (i = 0; i < sc_chan->chan_ntargets; i++) 265 sc->sc_targetmap[i].it_flags &= ~IT_PRESENT; 266 #endif 267 268 /* 269 * A quick hack to handle Intel's stacked bus port arrangement. 270 */ 271 bptid = sc->sc_ii.ii_tid; 272 nent = iop->sc_nlctent; 273 for (le = iop->sc_lct->entry; nent != 0; nent--, le++) 274 if ((le16toh(le->classid) & 4095) == 275 I2O_CLASS_BUS_ADAPTER_PORT && 276 (le32toh(le->usertid) & 4095) == bptid) { 277 bptid = le16toh(le->localtid) & 4095; 278 break; 279 } 280 281 nent = iop->sc_nlctent; 282 for (i = 0, le = iop->sc_lct->entry; i < nent; i++, le++) { 283 if ((le16toh(le->classid) & 4095) != I2O_CLASS_SCSI_PERIPHERAL) 284 continue; 285 if (((le32toh(le->usertid) >> 12) & 4095) != bptid) 286 continue; 287 tid = le16toh(le->localtid) & 4095; 288 289 rv = iop_field_get_all(iop, tid, I2O_PARAM_SCSI_DEVICE_INFO, 290 ¶m, sizeof(param), NULL); 291 if (rv != 0) 292 continue; 293 targ = le32toh(param.sdi.identifier); 294 lun = param.sdi.luninfo[1]; 295 #if defined(DIAGNOSTIC) || defined(I2ODEBUG) 296 if (targ >= sc_chan->chan_ntargets || 297 lun >= sc_chan->chan_nluns) { 298 printf("%s: target %d,%d (tid %d): bad target/LUN\n", 299 sc->sc_dv.dv_xname, targ, lun, tid); 300 continue; 301 } 302 #endif 303 304 #ifdef I2OVERBOSE 305 /* 306 * If we've already described this target, and nothing has 307 * changed, then don't describe it again. 308 */ 309 it = &sc->sc_targetmap[targ]; 310 it->it_flags |= IT_PRESENT; 311 syncrate = ((int)le64toh(param.sdi.negsyncrate) + 500) / 1000; 312 if (it->it_width != param.sdi.negdatawidth || 313 it->it_offset != param.sdi.negoffset || 314 it->it_syncrate != syncrate) { 315 it->it_width = param.sdi.negdatawidth; 316 it->it_offset = param.sdi.negoffset; 317 it->it_syncrate = syncrate; 318 319 printf("%s: target %d (tid %d): %d-bit, ", 320 sc->sc_dv.dv_xname, targ, tid, it->it_width); 321 if (it->it_syncrate == 0) 322 printf("asynchronous\n"); 323 else 324 printf("synchronous at %dMHz, offset 0x%x\n", 325 it->it_syncrate, it->it_offset); 326 } 327 #endif 328 329 /* Ignore the device if it's in use by somebody else. */ 330 if ((le32toh(le->usertid) & 4095) != I2O_TID_NONE) { 331 #ifdef I2OVERBOSE 332 if (sc->sc_tidmap == NULL || 333 IOPSP_TIDMAP(sc->sc_tidmap, targ, lun) != 334 IOPSP_TID_INUSE) 335 printf("%s: target %d,%d (tid %d): in use by" 336 " tid %d\n", sc->sc_dv.dv_xname, 337 targ, lun, tid, 338 le32toh(le->usertid) & 4095); 339 #endif 340 IOPSP_TIDMAP(tidmap, targ, lun) = IOPSP_TID_INUSE; 341 } else 342 IOPSP_TIDMAP(tidmap, targ, lun) = (u_short)tid; 343 } 344 345 #ifdef I2OVERBOSE 346 for (i = 0; i < sc_chan->chan_ntargets; i++) 347 if ((sc->sc_targetmap[i].it_flags & IT_PRESENT) == 0) 348 sc->sc_targetmap[i].it_width = 0; 349 #endif 350 351 /* Swap in the new map and return. */ 352 s = splbio(); 353 if (sc->sc_tidmap != NULL) 354 free(sc->sc_tidmap, M_DEVBUF); 355 sc->sc_tidmap = tidmap; 356 splx(s); 357 sc->sc_chgind = iop->sc_chgind; 358 return (0); 359 } 360 361 /* 362 * Re-scan the bus; to be called from a higher level (e.g. scsipi). 363 */ 364 static int 365 iopsp_rescan(struct iopsp_softc *sc) 366 { 367 struct iop_softc *iop; 368 struct iop_msg *im; 369 struct i2o_hba_bus_scan mf; 370 int rv; 371 372 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 373 374 rv = lockmgr(&iop->sc_conflock, LK_EXCLUSIVE, NULL); 375 if (rv != 0) { 376 #ifdef I2ODEBUG 377 printf("iopsp_rescan: unable to acquire lock\n"); 378 #endif 379 return (rv); 380 } 381 382 im = iop_msg_alloc(iop, IM_WAIT); 383 384 mf.msgflags = I2O_MSGFLAGS(i2o_hba_bus_scan); 385 mf.msgfunc = I2O_MSGFUNC(sc->sc_ii.ii_tid, I2O_HBA_BUS_SCAN); 386 mf.msgictx = sc->sc_ii.ii_ictx; 387 mf.msgtctx = im->im_tctx; 388 389 rv = iop_msg_post(iop, im, &mf, 5*60*1000); 390 iop_msg_free(iop, im); 391 if (rv != 0) 392 printf("%s: bus rescan failed (error %d)\n", 393 sc->sc_dv.dv_xname, rv); 394 395 if ((rv = iop_lct_get(iop)) == 0) 396 rv = iopsp_reconfig(&sc->sc_dv); 397 398 lockmgr(&iop->sc_conflock, LK_RELEASE, NULL); 399 return (rv); 400 } 401 402 /* 403 * Start a SCSI command. 404 */ 405 static void 406 iopsp_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 407 void *arg) 408 { 409 struct scsipi_xfer *xs; 410 struct scsipi_periph *periph; 411 struct iopsp_softc *sc; 412 struct iop_msg *im; 413 struct iop_softc *iop; 414 struct i2o_scsi_scb_exec *mf; 415 int error, flags, tid; 416 u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 417 418 sc = (void *)chan->chan_adapter->adapt_dev; 419 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 420 421 switch (req) { 422 case ADAPTER_REQ_RUN_XFER: 423 xs = arg; 424 periph = xs->xs_periph; 425 flags = xs->xs_control; 426 427 SC_DEBUG(periph, SCSIPI_DB2, ("iopsp_scsi_request run_xfer\n")); 428 429 tid = IOPSP_TIDMAP(sc->sc_tidmap, periph->periph_target, 430 periph->periph_lun); 431 if (tid == IOPSP_TID_ABSENT || tid == IOPSP_TID_INUSE) { 432 xs->error = XS_SELTIMEOUT; 433 scsipi_done(xs); 434 return; 435 } 436 437 /* Need to reset the target? */ 438 if ((flags & XS_CTL_RESET) != 0) { 439 if (iop_simple_cmd(iop, tid, I2O_SCSI_DEVICE_RESET, 440 sc->sc_ii.ii_ictx, 1, 30*1000) != 0) { 441 #ifdef I2ODEBUG 442 printf("%s: reset failed\n", 443 sc->sc_dv.dv_xname); 444 #endif 445 xs->error = XS_DRIVER_STUFFUP; 446 } else 447 xs->error = XS_NOERROR; 448 449 scsipi_done(xs); 450 return; 451 } 452 453 #if defined(I2ODEBUG) || defined(SCSIDEBUG) 454 if (xs->cmdlen > sizeof(mf->cdb)) 455 panic("%s: CDB too large", sc->sc_dv.dv_xname); 456 #endif 457 458 im = iop_msg_alloc(iop, IM_POLL_INTR | 459 IM_NOSTATUS | ((flags & XS_CTL_POLL) != 0 ? IM_POLL : 0)); 460 im->im_dvcontext = xs; 461 462 mf = (struct i2o_scsi_scb_exec *)mb; 463 mf->msgflags = I2O_MSGFLAGS(i2o_scsi_scb_exec); 464 mf->msgfunc = I2O_MSGFUNC(tid, I2O_SCSI_SCB_EXEC); 465 mf->msgictx = sc->sc_ii.ii_ictx; 466 mf->msgtctx = im->im_tctx; 467 mf->flags = xs->cmdlen | I2O_SCB_FLAG_ENABLE_DISCONNECT | 468 I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; 469 mf->datalen = xs->datalen; 470 memcpy(mf->cdb, xs->cmd, xs->cmdlen); 471 472 switch (xs->xs_tag_type) { 473 case MSG_ORDERED_Q_TAG: 474 mf->flags |= I2O_SCB_FLAG_ORDERED_QUEUE_TAG; 475 break; 476 case MSG_SIMPLE_Q_TAG: 477 mf->flags |= I2O_SCB_FLAG_SIMPLE_QUEUE_TAG; 478 break; 479 case MSG_HEAD_OF_Q_TAG: 480 mf->flags |= I2O_SCB_FLAG_HEAD_QUEUE_TAG; 481 break; 482 default: 483 break; 484 } 485 486 if (xs->datalen != 0) { 487 error = iop_msg_map_bio(iop, im, mb, xs->data, 488 xs->datalen, (flags & XS_CTL_DATA_OUT) == 0); 489 if (error) { 490 xs->error = XS_DRIVER_STUFFUP; 491 iop_msg_free(iop, im); 492 scsipi_done(xs); 493 return; 494 } 495 if ((flags & XS_CTL_DATA_IN) == 0) 496 mf->flags |= I2O_SCB_FLAG_XFER_TO_DEVICE; 497 else 498 mf->flags |= I2O_SCB_FLAG_XFER_FROM_DEVICE; 499 } 500 501 if (iop_msg_post(iop, im, mb, xs->timeout)) { 502 if (xs->datalen != 0) 503 iop_msg_unmap(iop, im); 504 iop_msg_free(iop, im); 505 xs->error = XS_DRIVER_STUFFUP; 506 scsipi_done(xs); 507 } 508 break; 509 510 case ADAPTER_REQ_GROW_RESOURCES: 511 /* 512 * Not supported. 513 */ 514 break; 515 516 case ADAPTER_REQ_SET_XFER_MODE: 517 /* 518 * The DDM takes care of this, and we can't modify its 519 * behaviour. 520 */ 521 break; 522 } 523 } 524 525 #ifdef notyet 526 /* 527 * Abort the specified I2O_SCSI_SCB_EXEC message and its associated SCB. 528 */ 529 static int 530 iopsp_scsi_abort(struct iopsp_softc *sc, int atid, struct iop_msg *aim) 531 { 532 struct iop_msg *im; 533 struct i2o_scsi_scb_abort mf; 534 struct iop_softc *iop; 535 int rv, s; 536 537 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 538 im = iop_msg_alloc(iop, IM_POLL); 539 540 mf.msgflags = I2O_MSGFLAGS(i2o_scsi_scb_abort); 541 mf.msgfunc = I2O_MSGFUNC(atid, I2O_SCSI_SCB_ABORT); 542 mf.msgictx = sc->sc_ii.ii_ictx; 543 mf.msgtctx = im->im_tctx; 544 mf.tctxabort = aim->im_tctx; 545 546 s = splbio(); 547 rv = iop_msg_post(iop, im, &mf, 30000); 548 splx(s); 549 iop_msg_free(iop, im); 550 return (rv); 551 } 552 #endif 553 554 /* 555 * We have a message which has been processed and replied to by the IOP - 556 * deal with it. 557 */ 558 static void 559 iopsp_intr(struct device *dv, struct iop_msg *im, void *reply) 560 { 561 struct scsipi_xfer *xs; 562 struct iopsp_softc *sc; 563 struct i2o_scsi_reply *rb; 564 struct iop_softc *iop; 565 u_int sl; 566 567 sc = (struct iopsp_softc *)dv; 568 xs = (struct scsipi_xfer *)im->im_dvcontext; 569 iop = (struct iop_softc *)dv->dv_parent; 570 rb = reply; 571 572 SC_DEBUG(xs->xs_periph, SCSIPI_DB2, ("iopsp_intr\n")); 573 574 if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) { 575 xs->error = XS_DRIVER_STUFFUP; 576 xs->resid = xs->datalen; 577 } else { 578 if (rb->hbastatus != I2O_SCSI_DSC_SUCCESS) { 579 switch (rb->hbastatus) { 580 case I2O_SCSI_DSC_ADAPTER_BUSY: 581 case I2O_SCSI_DSC_SCSI_BUS_RESET: 582 case I2O_SCSI_DSC_BUS_BUSY: 583 xs->error = XS_BUSY; 584 break; 585 case I2O_SCSI_DSC_SELECTION_TIMEOUT: 586 xs->error = XS_SELTIMEOUT; 587 break; 588 case I2O_SCSI_DSC_COMMAND_TIMEOUT: 589 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: 590 case I2O_SCSI_DSC_LUN_INVALID: 591 case I2O_SCSI_DSC_SCSI_TID_INVALID: 592 xs->error = XS_TIMEOUT; 593 break; 594 default: 595 xs->error = XS_DRIVER_STUFFUP; 596 break; 597 } 598 printf("%s: HBA status 0x%02x\n", sc->sc_dv.dv_xname, 599 rb->hbastatus); 600 } else if (rb->scsistatus != SCSI_OK) { 601 switch (rb->scsistatus) { 602 case SCSI_CHECK: 603 xs->error = XS_SENSE; 604 sl = le32toh(rb->senselen); 605 if (sl > sizeof(xs->sense.scsi_sense)) 606 sl = sizeof(xs->sense.scsi_sense); 607 memcpy(&xs->sense.scsi_sense, rb->sense, sl); 608 break; 609 case SCSI_QUEUE_FULL: 610 case SCSI_BUSY: 611 xs->error = XS_BUSY; 612 break; 613 default: 614 xs->error = XS_DRIVER_STUFFUP; 615 break; 616 } 617 } else 618 xs->error = XS_NOERROR; 619 620 xs->resid = xs->datalen - le32toh(rb->datalen); 621 xs->status = rb->scsistatus; 622 } 623 624 /* Free the message wrapper and pass the news to scsipi. */ 625 if (xs->datalen != 0) 626 iop_msg_unmap(iop, im); 627 iop_msg_free(iop, im); 628 629 scsipi_done(xs); 630 } 631 632 /* 633 * ioctl hook; used here only to initiate low-level rescans. 634 */ 635 static int 636 iopsp_ioctl(struct scsipi_channel *chan, u_long cmd, caddr_t data, int flag, 637 struct proc *p) 638 { 639 int rv; 640 641 switch (cmd) { 642 case SCBUSIOLLSCAN: 643 /* 644 * If it's boot time, the bus will have been scanned and the 645 * maps built. Locking would stop re-configuration, but we 646 * want to fake success. 647 */ 648 if (p != &proc0) 649 rv = iopsp_rescan( 650 (struct iopsp_softc *)chan->chan_adapter->adapt_dev); 651 else 652 rv = 0; 653 break; 654 655 default: 656 rv = ENOTTY; 657 break; 658 } 659 660 return (rv); 661 } 662 663 /* 664 * The number of openings available to us has changed, so inform scsipi. 665 */ 666 static void 667 iopsp_adjqparam(struct device *dv, int mpi) 668 { 669 struct iopsp_softc *sc; 670 int s; 671 672 sc = (struct iopsp_softc *)dv; 673 674 s = splbio(); 675 sc->sc_adapter.adapt_openings += mpi - sc->sc_openings; 676 sc->sc_openings = mpi; 677 splx(s); 678 }
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