iopsp.c revision 1.4.2.3
1 /* $NetBSD: iopsp.c,v 1.4.2.3 2001/06/21 20:01:49 nathanw 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 "opt_i2o.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/device.h> 50 #include <sys/queue.h> 51 #include <sys/lwp.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 #include <sys/lock.h> 58 59 #include <machine/bswap.h> 60 #include <machine/bus.h> 61 62 #include <dev/scsipi/scsi_all.h> 63 #include <dev/scsipi/scsi_disk.h> 64 #include <dev/scsipi/scsipi_all.h> 65 #include <dev/scsipi/scsiconf.h> 66 #include <dev/scsipi/scsi_message.h> 67 68 #include <dev/i2o/i2o.h> 69 #include <dev/i2o/iopio.h> 70 #include <dev/i2o/iopvar.h> 71 #include <dev/i2o/iopspvar.h> 72 73 static void iopsp_adjqparam(struct device *, int); 74 static void iopsp_attach(struct device *, struct device *, void *); 75 static void iopsp_intr(struct device *, struct iop_msg *, void *); 76 static int iopsp_ioctl(struct scsipi_channel *, u_long, 77 caddr_t, int, struct proc *); 78 static int iopsp_match(struct device *, struct cfdata *, void *); 79 static int iopsp_rescan(struct iopsp_softc *); 80 static int iopsp_reconfig(struct device *); 81 static void iopsp_scsipi_request(struct scsipi_channel *, 82 scsipi_adapter_req_t, void *); 83 84 struct cfattach iopsp_ca = { 85 sizeof(struct iopsp_softc), iopsp_match, iopsp_attach 86 }; 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_param_op((struct iop_softc *)parent, ia->ia_tid, NULL, 0, 107 I2O_PARAM_HBA_CTLR_INFO, ¶m, sizeof(param)) != 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 fcal, rv; 133 #ifdef I2OVERBOSE 134 int size; 135 #endif 136 137 ia = (struct iop_attach_args *)aux; 138 sc = (struct iopsp_softc *)self; 139 iop = (struct iop_softc *)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_param_op(iop, ia->ia_tid, NULL, 0, I2O_PARAM_HBA_CTLR_INFO, 151 ¶m, sizeof(param)); 152 if (rv != 0) { 153 printf("%s: unable to get parameters (0x%04x; %d)\n", 154 sc->sc_dv.dv_xname, I2O_PARAM_HBA_CTLR_INFO, rv); 155 goto bad; 156 } 157 158 fcal = (param.p.ci.bustype == I2O_HBA_BUS_FCA); /* XXX */ 159 160 /* 161 * Say what the device is. If we can find out what the controling 162 * device is, say what that is too. 163 */ 164 printf(": SCSI port"); 165 iop_print_ident(iop, ia->ia_tid); 166 printf("\n"); 167 168 rv = iop_param_op(iop, ia->ia_tid, NULL, 0, 169 I2O_PARAM_HBA_SCSI_CTLR_INFO, ¶m, sizeof(param)); 170 if (rv != 0) { 171 printf("%s: unable to get parameters (0x%04x; %d)\n", 172 sc->sc_dv.dv_xname, I2O_PARAM_HBA_SCSI_CTLR_INFO, rv); 173 goto bad; 174 } 175 176 #ifdef I2OVERBOSE 177 printf("%s: %d-bit, max sync rate %dMHz, initiator ID %d\n", 178 sc->sc_dv.dv_xname, param.p.sci.maxdatawidth, 179 (u_int32_t)le64toh(param.p.sci.maxsyncrate) / 1000, 180 le32toh(param.p.sci.initiatorid)); 181 #endif 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 = fcal ? 196 IOPSP_MAX_FCAL_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); 208 memset(sc->sc_targetmap, 0, size); 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)) == NULL) 261 return (ENOMEM); 262 memset(tidmap, 0, size); 263 264 #ifdef I2OVERBOSE 265 for (i = 0; i < sc_chan->chan_ntargets; i++) 266 sc->sc_targetmap[i].it_flags &= ~IT_PRESENT; 267 #endif 268 269 /* 270 * A quick hack to handle Intel's stacked bus port arrangement. 271 */ 272 bptid = sc->sc_ii.ii_tid; 273 nent = iop->sc_nlctent; 274 for (le = iop->sc_lct->entry; nent != 0; nent--, le++) 275 if ((le16toh(le->classid) & 4095) == 276 I2O_CLASS_BUS_ADAPTER_PORT && 277 (le32toh(le->usertid) & 4095) == bptid) { 278 bptid = le32toh(le->localtid) & 4095; 279 break; 280 } 281 282 nent = iop->sc_nlctent; 283 for (i = 0, le = iop->sc_lct->entry; i < nent; i++, le++) { 284 if ((le16toh(le->classid) & 4095) != I2O_CLASS_SCSI_PERIPHERAL) 285 continue; 286 if (((le32toh(le->usertid) >> 12) & 4095) != bptid) 287 continue; 288 tid = le32toh(le->localtid) & 4095; 289 290 rv = iop_param_op(iop, tid, NULL, 0, I2O_PARAM_SCSI_DEVICE_INFO, 291 ¶m, sizeof(param)); 292 if (rv != 0) { 293 printf("%s: unable to get parameters (0x%04x; %d)\n", 294 sc->sc_dv.dv_xname, I2O_PARAM_SCSI_DEVICE_INFO, 295 rv); 296 continue; 297 } 298 targ = le32toh(param.sdi.identifier); 299 lun = param.sdi.luninfo[1]; 300 #if defined(DIAGNOSTIC) || defined(I2ODEBUG) 301 if (targ >= sc_chan->chan_ntargets || 302 lun >= sc_chan->chan_nluns) { 303 printf("%s: target %d,%d (tid %d): bad target/LUN\n", 304 sc->sc_dv.dv_xname, targ, lun, tid); 305 continue; 306 } 307 #endif 308 309 #ifdef I2OVERBOSE 310 /* 311 * If we've already described this target, and nothing has 312 * changed, then don't describe it again. 313 */ 314 it = &sc->sc_targetmap[targ]; 315 it->it_flags |= IT_PRESENT; 316 syncrate = ((int)le64toh(param.sdi.negsyncrate) + 500) / 1000; 317 if (it->it_width == param.sdi.negdatawidth && 318 it->it_offset == param.sdi.negoffset && 319 it->it_syncrate == syncrate) 320 continue; 321 322 it->it_width = param.sdi.negdatawidth; 323 it->it_offset = param.sdi.negoffset; 324 it->it_syncrate = syncrate; 325 326 printf("%s: target %d (tid %d): %d-bit, ", sc->sc_dv.dv_xname, 327 targ, tid, it->it_width); 328 if (it->it_syncrate == 0) 329 printf("asynchronous\n"); 330 else 331 printf("synchronous at %dMHz, offset 0x%x\n", 332 it->it_syncrate, it->it_offset); 333 #endif 334 335 /* Ignore the device if it's in use by somebody else. */ 336 if ((le32toh(le->usertid) & 4095) != I2O_TID_NONE) { 337 #ifdef I2OVERBOSE 338 if (sc->sc_tidmap == NULL || 339 IOPSP_TIDMAP(sc->sc_tidmap, targ, lun) != 340 IOPSP_TID_INUSE) 341 printf("%s: target %d,%d (tid %d): in use by" 342 " tid %d\n", sc->sc_dv.dv_xname, 343 targ, lun, tid, 344 le32toh(le->usertid) & 4095); 345 #endif 346 IOPSP_TIDMAP(tidmap, targ, lun) = IOPSP_TID_INUSE; 347 } else 348 IOPSP_TIDMAP(tidmap, targ, lun) = (u_short)tid; 349 } 350 351 #ifdef I2OVERBOSE 352 for (i = 0; i < sc_chan->chan_ntargets; i++) 353 if ((sc->sc_targetmap[i].it_flags & IT_PRESENT) == 0) 354 sc->sc_targetmap[i].it_width = 0; 355 #endif 356 357 /* Swap in the new map and return. */ 358 s = splbio(); 359 if (sc->sc_tidmap != NULL) 360 free(sc->sc_tidmap, M_DEVBUF); 361 sc->sc_tidmap = tidmap; 362 splx(s); 363 sc->sc_chgind = iop->sc_chgind; 364 return (0); 365 } 366 367 /* 368 * Re-scan the bus; to be called from a higher level (e.g. scsipi). 369 */ 370 static int 371 iopsp_rescan(struct iopsp_softc *sc) 372 { 373 struct iop_softc *iop; 374 struct iop_msg *im; 375 struct i2o_hba_bus_scan mf; 376 int rv; 377 378 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 379 380 rv = lockmgr(&iop->sc_conflock, LK_EXCLUSIVE, NULL); 381 if (rv != 0) { 382 #ifdef I2ODEBUG 383 printf("iopsp_rescan: unable to acquire lock\n"); 384 #endif 385 return (rv); 386 } 387 388 im = iop_msg_alloc(iop, &sc->sc_ii, IM_WAIT); 389 390 mf.msgflags = I2O_MSGFLAGS(i2o_hba_bus_scan); 391 mf.msgfunc = I2O_MSGFUNC(sc->sc_ii.ii_tid, I2O_HBA_BUS_SCAN); 392 mf.msgictx = sc->sc_ii.ii_ictx; 393 mf.msgtctx = im->im_tctx; 394 395 rv = iop_msg_post(iop, im, &mf, 5*60*1000); 396 iop_msg_free(iop, im); 397 if (rv != 0) 398 printf("%s: bus rescan failed (error %d)\n", 399 sc->sc_dv.dv_xname, rv); 400 401 if ((rv = iop_lct_get(iop)) == 0) 402 rv = iopsp_reconfig(&sc->sc_dv); 403 404 lockmgr(&iop->sc_conflock, LK_RELEASE, NULL); 405 return (rv); 406 } 407 408 /* 409 * Start a SCSI command. 410 */ 411 static void 412 iopsp_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, 413 void *arg) 414 { 415 struct scsipi_xfer *xs; 416 struct scsipi_periph *periph; 417 struct iopsp_softc *sc; 418 struct iop_msg *im; 419 struct iop_softc *iop; 420 struct i2o_scsi_scb_exec *mf; 421 int error, flags, tid, s; 422 u_int32_t mb[IOP_MAX_MSG_SIZE / sizeof(u_int32_t)]; 423 424 sc = (void *)chan->chan_adapter->adapt_dev; 425 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 426 427 switch (req) { 428 case ADAPTER_REQ_RUN_XFER: 429 xs = arg; 430 periph = xs->xs_periph; 431 flags = xs->xs_control; 432 433 tid = IOPSP_TIDMAP(sc->sc_tidmap, periph->periph_target, 434 periph->periph_lun); 435 if (tid == IOPSP_TID_ABSENT || tid == IOPSP_TID_INUSE) { 436 xs->error = XS_SELTIMEOUT; 437 scsipi_done(xs); 438 return; 439 } 440 441 SC_DEBUG(periph, SDEV_DB2, ("iopsp_scsi_request run_xfer\n")); 442 443 /* Need to reset the target? */ 444 if ((flags & XS_CTL_RESET) != 0) { 445 if (iop_simple_cmd(iop, tid, I2O_SCSI_DEVICE_RESET, 446 sc->sc_ii.ii_ictx, 1, 30*1000) != 0) { 447 #ifdef I2ODEBUG 448 printf("%s: reset failed\n", 449 sc->sc_dv.dv_xname); 450 #endif 451 xs->error = XS_DRIVER_STUFFUP; 452 } else 453 xs->error = XS_NOERROR; 454 455 scsipi_done(xs); 456 return; 457 } 458 459 #if defined(I2ODEBUG) || defined(SCSIDEBUG) 460 if (xs->cmdlen > sizeof(mf->cdb)) 461 panic("%s: CDB too large\n", sc->sc_dv.dv_xname); 462 #endif 463 464 im = iop_msg_alloc(iop, &sc->sc_ii, IM_POLL_INTR | 465 IM_NOSTATUS | ((flags & XS_CTL_POLL) != 0 ? IM_POLL : 0)); 466 im->im_dvcontext = xs; 467 468 mf = (struct i2o_scsi_scb_exec *)mb; 469 mf->msgflags = I2O_MSGFLAGS(i2o_scsi_scb_exec); 470 mf->msgfunc = I2O_MSGFUNC(tid, I2O_SCSI_SCB_EXEC); 471 mf->msgictx = sc->sc_ii.ii_ictx; 472 mf->msgtctx = im->im_tctx; 473 mf->flags = xs->cmdlen | I2O_SCB_FLAG_ENABLE_DISCONNECT | 474 I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE; 475 mf->datalen = xs->datalen; 476 memcpy(mf->cdb, xs->cmd, xs->cmdlen); 477 478 switch (xs->xs_tag_type) { 479 case MSG_ORDERED_Q_TAG: 480 mf->flags |= I2O_SCB_FLAG_ORDERED_QUEUE_TAG; 481 break; 482 case MSG_SIMPLE_Q_TAG: 483 mf->flags |= I2O_SCB_FLAG_SIMPLE_QUEUE_TAG; 484 break; 485 case MSG_HEAD_OF_Q_TAG: 486 mf->flags |= I2O_SCB_FLAG_HEAD_QUEUE_TAG; 487 break; 488 default: 489 break; 490 } 491 492 if (xs->datalen != 0) { 493 error = iop_msg_map_bio(iop, im, mb, xs->data, 494 xs->datalen, (flags & XS_CTL_DATA_OUT) == 0); 495 if (error) { 496 xs->error = XS_DRIVER_STUFFUP; 497 iop_msg_free(iop, im); 498 scsipi_done(xs); 499 return; 500 } 501 if ((flags & XS_CTL_DATA_IN) == 0) 502 mf->flags |= I2O_SCB_FLAG_XFER_TO_DEVICE; 503 else 504 mf->flags |= I2O_SCB_FLAG_XFER_FROM_DEVICE; 505 } 506 507 s = splbio(); 508 sc->sc_curqd++; 509 splx(s); 510 511 if (iop_msg_post(iop, im, mb, xs->timeout)) { 512 s = splbio(); 513 sc->sc_curqd--; 514 splx(s); 515 if (xs->datalen != 0) 516 iop_msg_unmap(iop, im); 517 iop_msg_free(iop, im); 518 xs->error = XS_DRIVER_STUFFUP; 519 scsipi_done(xs); 520 } 521 break; 522 523 case ADAPTER_REQ_GROW_RESOURCES: 524 /* 525 * Not supported. 526 */ 527 break; 528 529 case ADAPTER_REQ_SET_XFER_MODE: 530 /* 531 * The DDM takes care of this, and we can't modify its 532 * behaviour. 533 */ 534 break; 535 } 536 } 537 538 #ifdef notyet 539 /* 540 * Abort the specified I2O_SCSI_SCB_EXEC message and its associated SCB. 541 */ 542 static int 543 iopsp_scsi_abort(struct iopsp_softc *sc, int atid, struct iop_msg *aim) 544 { 545 struct iop_msg *im; 546 struct i2o_scsi_scb_abort mf; 547 struct iop_softc *iop; 548 int rv, s; 549 550 iop = (struct iop_softc *)sc->sc_dv.dv_parent; 551 im = iop_msg_alloc(iop, &sc->sc_ii, IM_POLL); 552 553 mf.msgflags = I2O_MSGFLAGS(i2o_scsi_scb_abort); 554 mf.msgfunc = I2O_MSGFUNC(atid, I2O_SCSI_SCB_ABORT); 555 mf.msgictx = sc->sc_ii.ii_ictx; 556 mf.msgtctx = im->im_tctx; 557 mf.tctxabort = aim->im_tctx; 558 559 s = splbio(); 560 rv = iop_msg_post(iop, im, &mf, 30000); 561 splx(s); 562 iop_msg_free(iop, im); 563 return (rv); 564 } 565 #endif 566 567 /* 568 * We have a message which has been processed and replied to by the IOP - 569 * deal with it. 570 */ 571 static void 572 iopsp_intr(struct device *dv, struct iop_msg *im, void *reply) 573 { 574 struct scsipi_xfer *xs; 575 struct iopsp_softc *sc; 576 struct i2o_scsi_reply *rb; 577 struct iop_softc *iop; 578 u_int sl; 579 580 sc = (struct iopsp_softc *)dv; 581 xs = (struct scsipi_xfer *)im->im_dvcontext; 582 iop = (struct iop_softc *)dv->dv_parent; 583 rb = reply; 584 585 SC_DEBUG(xs->xs_periph, SDEV_DB2, ("iopsp_intr\n")); 586 587 if ((rb->msgflags & I2O_MSGFLAGS_FAIL) != 0) { 588 xs->error = XS_DRIVER_STUFFUP; 589 xs->resid = xs->datalen; 590 } else { 591 if (rb->hbastatus != I2O_SCSI_DSC_SUCCESS) { 592 switch (rb->hbastatus) { 593 case I2O_SCSI_DSC_ADAPTER_BUSY: 594 case I2O_SCSI_DSC_SCSI_BUS_RESET: 595 case I2O_SCSI_DSC_BUS_BUSY: 596 xs->error = XS_BUSY; 597 break; 598 case I2O_SCSI_DSC_SELECTION_TIMEOUT: 599 xs->error = XS_SELTIMEOUT; 600 break; 601 case I2O_SCSI_DSC_COMMAND_TIMEOUT: 602 case I2O_SCSI_DSC_DEVICE_NOT_PRESENT: 603 case I2O_SCSI_DSC_LUN_INVALID: 604 case I2O_SCSI_DSC_SCSI_TID_INVALID: 605 xs->error = XS_TIMEOUT; 606 break; 607 default: 608 xs->error = XS_DRIVER_STUFFUP; 609 break; 610 } 611 printf("%s: HBA status 0x%02x\n", sc->sc_dv.dv_xname, 612 rb->hbastatus); 613 } else if (rb->scsistatus != SCSI_OK) { 614 switch (rb->scsistatus) { 615 case SCSI_CHECK: 616 xs->error = XS_SENSE; 617 sl = le32toh(rb->senselen); 618 if (sl > sizeof(xs->sense.scsi_sense)) 619 sl = sizeof(xs->sense.scsi_sense); 620 memcpy(&xs->sense.scsi_sense, rb->sense, sl); 621 break; 622 case SCSI_QUEUE_FULL: 623 case SCSI_BUSY: 624 xs->error = XS_BUSY; 625 break; 626 default: 627 xs->error = XS_DRIVER_STUFFUP; 628 break; 629 } 630 } else 631 xs->error = XS_NOERROR; 632 633 xs->resid = xs->datalen - le32toh(rb->datalen); 634 xs->status = rb->scsistatus; 635 } 636 637 /* Free the message wrapper and pass the news to scsipi. */ 638 if (xs->datalen != 0) 639 iop_msg_unmap(iop, im); 640 iop_msg_free(iop, im); 641 642 if (--sc->sc_curqd == sc->sc_adapter.adapt_openings) 643 wakeup(&sc->sc_curqd); 644 645 scsipi_done(xs); 646 } 647 648 /* 649 * ioctl hook; used here only to initiate low-level rescans. 650 */ 651 static int 652 iopsp_ioctl(struct scsipi_channel *chan, u_long cmd, caddr_t data, int flag, 653 struct proc *p) 654 { 655 int rv; 656 657 switch (cmd) { 658 case SCBUSIOLLSCAN: 659 /* 660 * If it's boot time, the bus will have been scanned and the 661 * maps built. Locking would stop re-configuration, but we 662 * want to fake success. 663 */ 664 if (p != &proc0) 665 rv = iopsp_rescan( 666 (struct iopsp_softc *)chan->chan_adapter->adapt_dev); 667 else 668 rv = 0; 669 break; 670 671 default: 672 rv = ENOTTY; 673 break; 674 } 675 676 return (rv); 677 } 678 679 /* 680 * The number of openings available to us has changed, so inform scsipi. 681 */ 682 static void 683 iopsp_adjqparam(struct device *dv, int mpi) 684 { 685 struct iopsp_softc *sc; 686 int s; 687 688 sc = (struct iopsp_softc *)dv; 689 690 s = splbio(); 691 sc->sc_adapter.adapt_openings = mpi; 692 if (mpi < sc->sc_curqd) 693 tsleep(&sc->sc_curqd, PWAIT, "iopspdrn", 0); 694 splx(s); 695 } 696
Indexes created Wed Oct 22 13:09:56 GMT 2025