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sys/dev/ic/icp.c
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1 /* $NetBSD: icp.c,v 1.22 2006/11/16 01:32:51 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2002, 2003 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, and by Jason R. Thorpe of Wasabi Systems, Inc. 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 * Copyright (c) 1999, 2000 Niklas Hallqvist. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by Niklas Hallqvist. 53 * 4. The name of the author may not be used to endorse or promote products 54 * derived from this software without specific prior written permission. 55 * 56 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 59 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 60 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 61 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 62 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 63 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 64 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 65 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 66 * 67 * from OpenBSD: gdt_common.c,v 1.12 2001/07/04 06:43:18 niklas Exp 68 */ 69 70 /* 71 * This driver would not have written if it was not for the hardware donations 72 * from both ICP-Vortex and Öko.neT. I want to thank them for their support. 73 * 74 * Re-worked for NetBSD by Andrew Doran. Test hardware kindly supplied by 75 * Intel. 76 * 77 * Support for the ICP-Vortex management tools added by 78 * Jason R. Thorpe of Wasabi Systems, Inc., based on code 79 * provided by Achim Leubner <achim.leubner@intel.com>. 80 * 81 * Additional support for dynamic rescan of cacheservice drives by 82 * Jason R. Thorpe of Wasabi Systems, Inc. 83 */ 84 85 #include <sys/cdefs.h> 86 __KERNEL_RCSID(0, "$NetBSD: icp.c,v 1.22 2006/11/16 01:32:51 christos Exp $"); 87 88 #include <sys/param.h> 89 #include <sys/systm.h> 90 #include <sys/kernel.h> 91 #include <sys/device.h> 92 #include <sys/queue.h> 93 #include <sys/proc.h> 94 #include <sys/buf.h> 95 #include <sys/endian.h> 96 #include <sys/malloc.h> 97 #include <sys/disk.h> 98 99 #include <uvm/uvm_extern.h> 100 101 #include <sys/bswap.h> 102 #include <machine/bus.h> 103 104 #include <dev/pci/pcireg.h> 105 #include <dev/pci/pcivar.h> 106 #include <dev/pci/pcidevs.h> 107 108 #include <dev/ic/icpreg.h> 109 #include <dev/ic/icpvar.h> 110 111 #include <dev/scsipi/scsipi_all.h> 112 #include <dev/scsipi/scsiconf.h> 113 114 #include "locators.h" 115 116 int icp_async_event(struct icp_softc *, int); 117 void icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic); 118 void icp_chain(struct icp_softc *); 119 int icp_print(void *, const char *); 120 void icp_watchdog(void *); 121 void icp_ucmd_intr(struct icp_ccb *); 122 void icp_recompute_openings(struct icp_softc *); 123 124 int icp_count; /* total # of controllers, for ioctl interface */ 125 126 /* 127 * Statistics for the ioctl interface to query. 128 * 129 * XXX Global. They should probably be made per-controller 130 * XXX at some point. 131 */ 132 gdt_statist_t icp_stats; 133 134 int 135 icp_init(struct icp_softc *icp, const char *intrstr) 136 { 137 struct icp_attach_args icpa; 138 struct icp_binfo binfo; 139 struct icp_ccb *ic; 140 u_int16_t cdev_cnt; 141 int i, j, state, feat, nsegs, rv; 142 int locs[ICPCF_NLOCS]; 143 144 state = 0; 145 146 if (intrstr != NULL) 147 aprint_normal("%s: interrupting at %s\n", icp->icp_dv.dv_xname, 148 intrstr); 149 150 SIMPLEQ_INIT(&icp->icp_ccb_queue); 151 SIMPLEQ_INIT(&icp->icp_ccb_freelist); 152 SIMPLEQ_INIT(&icp->icp_ucmd_queue); 153 callout_init(&icp->icp_wdog_callout); 154 155 /* 156 * Allocate a scratch area. 157 */ 158 if (bus_dmamap_create(icp->icp_dmat, ICP_SCRATCH_SIZE, 1, 159 ICP_SCRATCH_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 160 &icp->icp_scr_dmamap) != 0) { 161 aprint_error("%s: cannot create scratch dmamap\n", 162 icp->icp_dv.dv_xname); 163 return (1); 164 } 165 state++; 166 167 if (bus_dmamem_alloc(icp->icp_dmat, ICP_SCRATCH_SIZE, PAGE_SIZE, 0, 168 icp->icp_scr_seg, 1, &nsegs, BUS_DMA_NOWAIT) != 0) { 169 aprint_error("%s: cannot alloc scratch dmamem\n", 170 icp->icp_dv.dv_xname); 171 goto bail_out; 172 } 173 state++; 174 175 if (bus_dmamem_map(icp->icp_dmat, icp->icp_scr_seg, nsegs, 176 ICP_SCRATCH_SIZE, &icp->icp_scr, 0)) { 177 aprint_error("%s: cannot map scratch dmamem\n", 178 icp->icp_dv.dv_xname); 179 goto bail_out; 180 } 181 state++; 182 183 if (bus_dmamap_load(icp->icp_dmat, icp->icp_scr_dmamap, icp->icp_scr, 184 ICP_SCRATCH_SIZE, NULL, BUS_DMA_NOWAIT)) { 185 aprint_error("%s: cannot load scratch dmamap\n", 186 icp->icp_dv.dv_xname); 187 goto bail_out; 188 } 189 state++; 190 191 /* 192 * Allocate and initialize the command control blocks. 193 */ 194 ic = malloc(sizeof(*ic) * ICP_NCCBS, M_DEVBUF, M_NOWAIT | M_ZERO); 195 if ((icp->icp_ccbs = ic) == NULL) { 196 aprint_error("%s: malloc() failed\n", icp->icp_dv.dv_xname); 197 goto bail_out; 198 } 199 state++; 200 201 for (i = 0; i < ICP_NCCBS; i++, ic++) { 202 /* 203 * The first two command indexes have special meanings, so 204 * we can't use them. 205 */ 206 ic->ic_ident = i + 2; 207 rv = bus_dmamap_create(icp->icp_dmat, ICP_MAX_XFER, 208 ICP_MAXSG, ICP_MAX_XFER, 0, 209 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 210 &ic->ic_xfer_map); 211 if (rv != 0) 212 break; 213 icp->icp_nccbs++; 214 icp_ccb_free(icp, ic); 215 } 216 #ifdef DIAGNOSTIC 217 if (icp->icp_nccbs != ICP_NCCBS) 218 aprint_error("%s: %d/%d CCBs usable\n", icp->icp_dv.dv_xname, 219 icp->icp_nccbs, ICP_NCCBS); 220 #endif 221 222 /* 223 * Initalize the controller. 224 */ 225 if (!icp_cmd(icp, ICP_SCREENSERVICE, ICP_INIT, 0, 0, 0)) { 226 aprint_error("%s: screen service init error %d\n", 227 icp->icp_dv.dv_xname, icp->icp_status); 228 goto bail_out; 229 } 230 231 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 232 aprint_error("%s: cache service init error %d\n", 233 icp->icp_dv.dv_xname, icp->icp_status); 234 goto bail_out; 235 } 236 237 icp_cmd(icp, ICP_CACHESERVICE, ICP_UNFREEZE_IO, 0, 0, 0); 238 239 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_MOUNT, 0xffff, 1, 0)) { 240 aprint_error("%s: cache service mount error %d\n", 241 icp->icp_dv.dv_xname, icp->icp_status); 242 goto bail_out; 243 } 244 245 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 246 aprint_error("%s: cache service post-mount init error %d\n", 247 icp->icp_dv.dv_xname, icp->icp_status); 248 goto bail_out; 249 } 250 cdev_cnt = (u_int16_t)icp->icp_info; 251 icp->icp_fw_vers = icp->icp_service; 252 253 if (!icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_INIT, 0, 0, 0)) { 254 aprint_error("%s: raw service init error %d\n", 255 icp->icp_dv.dv_xname, icp->icp_status); 256 goto bail_out; 257 } 258 259 /* 260 * Set/get raw service features (scatter/gather). 261 */ 262 feat = 0; 263 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_SET_FEAT, ICP_SCATTER_GATHER, 264 0, 0)) 265 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_GET_FEAT, 0, 0, 0)) 266 feat = icp->icp_info; 267 268 if ((feat & ICP_SCATTER_GATHER) == 0) { 269 #ifdef DIAGNOSTIC 270 aprint_normal( 271 "%s: scatter/gather not supported (raw service)\n", 272 icp->icp_dv.dv_xname); 273 #endif 274 } else 275 icp->icp_features |= ICP_FEAT_RAWSERVICE; 276 277 /* 278 * Set/get cache service features (scatter/gather). 279 */ 280 feat = 0; 281 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_SET_FEAT, 0, 282 ICP_SCATTER_GATHER, 0)) 283 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_GET_FEAT, 0, 0, 0)) 284 feat = icp->icp_info; 285 286 if ((feat & ICP_SCATTER_GATHER) == 0) { 287 #ifdef DIAGNOSTIC 288 aprint_normal( 289 "%s: scatter/gather not supported (cache service)\n", 290 icp->icp_dv.dv_xname); 291 #endif 292 } else 293 icp->icp_features |= ICP_FEAT_CACHESERVICE; 294 295 /* 296 * Pull some information from the board and dump. 297 */ 298 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_BOARD_INFO, 299 ICP_INVALID_CHANNEL, sizeof(struct icp_binfo))) { 300 aprint_error("%s: unable to retrive board info\n", 301 icp->icp_dv.dv_xname); 302 goto bail_out; 303 } 304 memcpy(&binfo, icp->icp_scr, sizeof(binfo)); 305 306 aprint_normal( 307 "%s: model <%s>, firmware <%s>, %d channel(s), %dMB memory\n", 308 icp->icp_dv.dv_xname, binfo.bi_type_string, binfo.bi_raid_string, 309 binfo.bi_chan_count, le32toh(binfo.bi_memsize) >> 20); 310 311 /* 312 * Determine the number of devices, and number of openings per 313 * device. 314 */ 315 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 316 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 317 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, j, 0, 318 0)) 319 continue; 320 321 icp->icp_cdr[j].cd_size = icp->icp_info; 322 if (icp->icp_cdr[j].cd_size != 0) 323 icp->icp_ndevs++; 324 325 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, j, 0, 326 0)) 327 icp->icp_cdr[j].cd_type = icp->icp_info; 328 } 329 } 330 331 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 332 icp->icp_nchan = binfo.bi_chan_count; 333 icp->icp_ndevs += icp->icp_nchan; 334 } 335 336 icp_recompute_openings(icp); 337 338 /* 339 * Attach SCSI channels. 340 */ 341 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 342 struct icp_ioc_version *iv; 343 struct icp_rawioc *ri; 344 struct icp_getch *gc; 345 346 iv = (struct icp_ioc_version *)icp->icp_scr; 347 iv->iv_version = htole32(ICP_IOC_NEWEST); 348 iv->iv_listents = ICP_MAXBUS; 349 iv->iv_firstchan = 0; 350 iv->iv_lastchan = ICP_MAXBUS - 1; 351 iv->iv_listoffset = htole32(sizeof(*iv)); 352 353 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 354 ICP_IOCHAN_RAW_DESC, ICP_INVALID_CHANNEL, 355 sizeof(*iv) + ICP_MAXBUS * sizeof(*ri))) { 356 ri = (struct icp_rawioc *)(iv + 1); 357 for (j = 0; j < binfo.bi_chan_count; j++, ri++) 358 icp->icp_bus_id[j] = ri->ri_procid; 359 } else { 360 /* 361 * Fall back to the old method. 362 */ 363 gc = (struct icp_getch *)icp->icp_scr; 364 365 for (j = 0; j < binfo.bi_chan_count; j++) { 366 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 367 ICP_SCSI_CHAN_CNT | ICP_L_CTRL_PATTERN, 368 ICP_IO_CHANNEL | ICP_INVALID_CHANNEL, 369 sizeof(*gc))) { 370 aprint_error( 371 "%s: unable to get chan info", 372 icp->icp_dv.dv_xname); 373 goto bail_out; 374 } 375 icp->icp_bus_id[j] = gc->gc_scsiid; 376 } 377 } 378 379 for (j = 0; j < binfo.bi_chan_count; j++) { 380 if (icp->icp_bus_id[j] > ICP_MAXID_FC) 381 icp->icp_bus_id[j] = ICP_MAXID_FC; 382 383 icpa.icpa_unit = j + ICPA_UNIT_SCSI; 384 385 locs[ICPCF_UNIT] = j + ICPA_UNIT_SCSI; 386 387 icp->icp_children[icpa.icpa_unit] = 388 config_found_sm_loc(&icp->icp_dv, "icp", locs, 389 &icpa, icp_print, config_stdsubmatch); 390 } 391 } 392 393 /* 394 * Attach cache devices. 395 */ 396 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 397 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 398 if (icp->icp_cdr[j].cd_size == 0) 399 continue; 400 401 icpa.icpa_unit = j; 402 403 locs[ICPCF_UNIT] = j; 404 405 icp->icp_children[icpa.icpa_unit] = 406 config_found_sm_loc(&icp->icp_dv, "icp", locs, 407 &icpa, icp_print, config_stdsubmatch); 408 } 409 } 410 411 /* 412 * Start the watchdog. 413 */ 414 icp_watchdog(icp); 415 416 /* 417 * Count the controller, and we're done! 418 */ 419 icp_count++; 420 421 return (0); 422 423 bail_out: 424 if (state > 4) 425 for (j = 0; j < i; j++) 426 bus_dmamap_destroy(icp->icp_dmat, 427 icp->icp_ccbs[j].ic_xfer_map); 428 if (state > 3) 429 free(icp->icp_ccbs, M_DEVBUF); 430 if (state > 2) 431 bus_dmamap_unload(icp->icp_dmat, icp->icp_scr_dmamap); 432 if (state > 1) 433 bus_dmamem_unmap(icp->icp_dmat, icp->icp_scr, 434 ICP_SCRATCH_SIZE); 435 if (state > 0) 436 bus_dmamem_free(icp->icp_dmat, icp->icp_scr_seg, nsegs); 437 bus_dmamap_destroy(icp->icp_dmat, icp->icp_scr_dmamap); 438 439 return (1); 440 } 441 442 void 443 icp_register_servicecb(struct icp_softc *icp, int unit, 444 const struct icp_servicecb *cb) 445 { 446 447 icp->icp_servicecb[unit] = cb; 448 } 449 450 void 451 icp_rescan(struct icp_softc *icp, int unit) 452 { 453 struct icp_attach_args icpa; 454 u_int newsize, newtype; 455 int locs[ICPCF_NLOCS]; 456 457 /* 458 * NOTE: It is very important that the queue be frozen and not 459 * commands running when this is called. The ioctl mutex must 460 * also be held. 461 */ 462 463 KASSERT(icp->icp_qfreeze != 0); 464 KASSERT(icp->icp_running == 0); 465 KASSERT(unit < ICP_MAX_HDRIVES); 466 467 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, unit, 0, 0)) { 468 #ifdef ICP_DEBUG 469 printf("%s: rescan: unit %d ICP_INFO failed -> 0x%04x\n", 470 icp->icp_dv.dv_xname, unit, icp->icp_status); 471 #endif 472 goto gone; 473 } 474 if ((newsize = icp->icp_info) == 0) { 475 #ifdef ICP_DEBUG 476 printf("%s: rescan: unit %d has zero size\n", 477 icp->icp_dv.dv_xname, unit); 478 #endif 479 gone: 480 /* 481 * Host drive is no longer present; detach if a child 482 * is currently there. 483 */ 484 if (icp->icp_cdr[unit].cd_size != 0) 485 icp->icp_ndevs--; 486 icp->icp_cdr[unit].cd_size = 0; 487 if (icp->icp_children[unit] != NULL) { 488 (void) config_detach(icp->icp_children[unit], 489 DETACH_FORCE); 490 icp->icp_children[unit] = NULL; 491 } 492 return; 493 } 494 495 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, unit, 0, 0)) 496 newtype = icp->icp_info; 497 else { 498 #ifdef ICP_DEBUG 499 printf("%s: rescan: unit %d ICP_DEVTYPE failed\n", 500 icp->icp_dv.dv_xname, unit); 501 #endif 502 newtype = 0; /* XXX? */ 503 } 504 505 #ifdef ICP_DEBUG 506 printf("%s: rescan: unit %d old %u/%u, new %u/%u\n", 507 icp->icp_dv.dv_xname, unit, icp->icp_cdr[unit].cd_size, 508 icp->icp_cdr[unit].cd_type, newsize, newtype); 509 #endif 510 511 /* 512 * If the type or size changed, detach any old child (if it exists) 513 * and attach a new one. 514 */ 515 if (icp->icp_children[unit] == NULL || 516 newsize != icp->icp_cdr[unit].cd_size || 517 newtype != icp->icp_cdr[unit].cd_type) { 518 if (icp->icp_cdr[unit].cd_size == 0) 519 icp->icp_ndevs++; 520 icp->icp_cdr[unit].cd_size = newsize; 521 icp->icp_cdr[unit].cd_type = newtype; 522 if (icp->icp_children[unit] != NULL) 523 (void) config_detach(icp->icp_children[unit], 524 DETACH_FORCE); 525 526 icpa.icpa_unit = unit; 527 528 locs[ICPCF_UNIT] = unit; 529 530 icp->icp_children[unit] = config_found_sm_loc(&icp->icp_dv, 531 "icp", locs, &icpa, icp_print, config_stdsubmatch); 532 } 533 534 icp_recompute_openings(icp); 535 } 536 537 void 538 icp_rescan_all(struct icp_softc *icp) 539 { 540 int unit; 541 u_int16_t cdev_cnt; 542 543 /* 544 * This is the old method of rescanning the host drives. We 545 * start by reinitializing the cache service. 546 */ 547 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 548 printf("%s: unable to re-initialize cache service for rescan\n", 549 icp->icp_dv.dv_xname); 550 return; 551 } 552 cdev_cnt = (u_int16_t) icp->icp_info; 553 554 /* For each host drive, do the new-style rescan. */ 555 for (unit = 0; unit < cdev_cnt && unit < ICP_MAX_HDRIVES; unit++) 556 icp_rescan(icp, unit); 557 558 /* Now detach anything in the slots after cdev_cnt. */ 559 for (; unit < ICP_MAX_HDRIVES; unit++) { 560 if (icp->icp_cdr[unit].cd_size != 0) { 561 #ifdef ICP_DEBUG 562 printf("%s: rescan all: unit %d < new cdev_cnt (%d)\n", 563 icp->icp_dv.dv_xname, unit, cdev_cnt); 564 #endif 565 icp->icp_ndevs--; 566 icp->icp_cdr[unit].cd_size = 0; 567 if (icp->icp_children[unit] != NULL) { 568 (void) config_detach(icp->icp_children[unit], 569 DETACH_FORCE); 570 icp->icp_children[unit] = NULL; 571 } 572 } 573 } 574 575 icp_recompute_openings(icp); 576 } 577 578 void 579 icp_recompute_openings(struct icp_softc *icp) 580 { 581 int unit, openings; 582 583 if (icp->icp_ndevs != 0) 584 openings = 585 (icp->icp_nccbs - ICP_NCCB_RESERVE) / icp->icp_ndevs; 586 else 587 openings = 0; 588 if (openings == icp->icp_openings) 589 return; 590 icp->icp_openings = openings; 591 592 #ifdef ICP_DEBUG 593 printf("%s: %d device%s, %d openings per device\n", 594 icp->icp_dv.dv_xname, icp->icp_ndevs, 595 icp->icp_ndevs == 1 ? "" : "s", icp->icp_openings); 596 #endif 597 598 for (unit = 0; unit < ICP_MAX_HDRIVES + ICP_MAXBUS; unit++) { 599 if (icp->icp_children[unit] != NULL) 600 (*icp->icp_servicecb[unit]->iscb_openings)( 601 icp->icp_children[unit], icp->icp_openings); 602 } 603 } 604 605 void 606 icp_watchdog(void *cookie) 607 { 608 struct icp_softc *icp; 609 int s; 610 611 icp = cookie; 612 613 s = splbio(); 614 icp_intr(icp); 615 if (ICP_HAS_WORK(icp)) 616 icp_ccb_enqueue(icp, NULL); 617 splx(s); 618 619 callout_reset(&icp->icp_wdog_callout, hz * ICP_WATCHDOG_FREQ, 620 icp_watchdog, icp); 621 } 622 623 int 624 icp_print(void *aux, const char *pnp) 625 { 626 struct icp_attach_args *icpa; 627 const char *str; 628 629 icpa = (struct icp_attach_args *)aux; 630 631 if (pnp != NULL) { 632 if (icpa->icpa_unit < ICPA_UNIT_SCSI) 633 str = "block device"; 634 else 635 str = "SCSI channel"; 636 aprint_normal("%s at %s", str, pnp); 637 } 638 aprint_normal(" unit %d", icpa->icpa_unit); 639 640 return (UNCONF); 641 } 642 643 int 644 icp_async_event(struct icp_softc *icp, int service) 645 { 646 647 if (service == ICP_SCREENSERVICE) { 648 if (icp->icp_status == ICP_S_MSG_REQUEST) { 649 /* XXX */ 650 } 651 } else { 652 if ((icp->icp_fw_vers & 0xff) >= 0x1a) { 653 icp->icp_evt.size = 0; 654 icp->icp_evt.eu.async.ionode = 655 device_unit(&icp->icp_dv); 656 icp->icp_evt.eu.async.status = icp->icp_status; 657 /* 658 * Severity and event string are filled in by the 659 * hardware interface interrupt handler. 660 */ 661 printf("%s: %s\n", icp->icp_dv.dv_xname, 662 icp->icp_evt.event_string); 663 } else { 664 icp->icp_evt.size = sizeof(icp->icp_evt.eu.async); 665 icp->icp_evt.eu.async.ionode = 666 device_unit(&icp->icp_dv); 667 icp->icp_evt.eu.async.service = service; 668 icp->icp_evt.eu.async.status = icp->icp_status; 669 icp->icp_evt.eu.async.info = icp->icp_info; 670 /* XXXJRT FIX THIS */ 671 *(u_int32_t *) icp->icp_evt.eu.async.scsi_coord = 672 icp->icp_info2; 673 } 674 icp_store_event(icp, GDT_ES_ASYNC, service, &icp->icp_evt); 675 } 676 677 return (0); 678 } 679 680 int 681 icp_intr(void *cookie) 682 { 683 struct icp_softc *icp; 684 struct icp_intr_ctx ctx; 685 struct icp_ccb *ic; 686 687 icp = cookie; 688 689 ctx.istatus = (*icp->icp_get_status)(icp); 690 if (!ctx.istatus) { 691 icp->icp_status = ICP_S_NO_STATUS; 692 return (0); 693 } 694 695 (*icp->icp_intr)(icp, &ctx); 696 697 icp->icp_status = ctx.cmd_status; 698 icp->icp_service = ctx.service; 699 icp->icp_info = ctx.info; 700 icp->icp_info2 = ctx.info2; 701 702 switch (ctx.istatus) { 703 case ICP_ASYNCINDEX: 704 icp_async_event(icp, ctx.service); 705 return (1); 706 707 case ICP_SPEZINDEX: 708 printf("%s: uninitialized or unknown service (%d/%d)\n", 709 icp->icp_dv.dv_xname, ctx.info, ctx.info2); 710 icp->icp_evt.size = sizeof(icp->icp_evt.eu.driver); 711 icp->icp_evt.eu.driver.ionode = device_unit(&icp->icp_dv); 712 icp_store_event(icp, GDT_ES_DRIVER, 4, &icp->icp_evt); 713 return (1); 714 } 715 716 if ((ctx.istatus - 2) > icp->icp_nccbs) 717 panic("icp_intr: bad command index returned"); 718 719 ic = &icp->icp_ccbs[ctx.istatus - 2]; 720 ic->ic_status = icp->icp_status; 721 722 if ((ic->ic_flags & IC_ALLOCED) == 0) { 723 /* XXX ICP's "iir" driver just sends an event here. */ 724 panic("icp_intr: inactive CCB identified"); 725 } 726 727 /* 728 * Try to protect ourselves from the running command count already 729 * being 0 (e.g. if a polled command times out). 730 */ 731 KDASSERT(icp->icp_running != 0); 732 if (--icp->icp_running == 0 && 733 (icp->icp_flags & ICP_F_WAIT_FREEZE) != 0) { 734 icp->icp_flags &= ~ICP_F_WAIT_FREEZE; 735 wakeup(&icp->icp_qfreeze); 736 } 737 738 switch (icp->icp_status) { 739 case ICP_S_BSY: 740 #ifdef ICP_DEBUG 741 printf("%s: ICP_S_BSY received\n", icp->icp_dv.dv_xname); 742 #endif 743 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 744 SIMPLEQ_INSERT_HEAD(&icp->icp_ucmd_queue, ic, ic_chain); 745 else 746 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_queue, ic, ic_chain); 747 break; 748 749 default: 750 ic->ic_flags |= IC_COMPLETE; 751 752 if ((ic->ic_flags & IC_WAITING) != 0) 753 wakeup(ic); 754 else if (ic->ic_intr != NULL) 755 (*ic->ic_intr)(ic); 756 757 if (ICP_HAS_WORK(icp)) 758 icp_ccb_enqueue(icp, NULL); 759 760 break; 761 } 762 763 return (1); 764 } 765 766 struct icp_ucmd_ctx { 767 gdt_ucmd_t *iu_ucmd; 768 u_int32_t iu_cnt; 769 }; 770 771 void 772 icp_ucmd_intr(struct icp_ccb *ic) 773 { 774 struct icp_softc *icp = (void *) ic->ic_dv; 775 struct icp_ucmd_ctx *iu = ic->ic_context; 776 gdt_ucmd_t *ucmd = iu->iu_ucmd; 777 778 ucmd->status = icp->icp_status; 779 ucmd->info = icp->icp_info; 780 781 if (iu->iu_cnt != 0) { 782 bus_dmamap_sync(icp->icp_dmat, 783 icp->icp_scr_dmamap, 784 ICP_SCRATCH_UCMD, iu->iu_cnt, 785 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 786 memcpy(ucmd->data, 787 icp->icp_scr + ICP_SCRATCH_UCMD, iu->iu_cnt); 788 } 789 790 icp->icp_ucmd_ccb = NULL; 791 792 ic->ic_flags |= IC_COMPLETE; 793 wakeup(ic); 794 } 795 796 /* 797 * NOTE: We assume that it is safe to sleep here! 798 */ 799 int 800 icp_cmd(struct icp_softc *icp, u_int8_t service, u_int16_t opcode, 801 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 802 { 803 struct icp_ioctlcmd *icmd; 804 struct icp_cachecmd *cc; 805 struct icp_rawcmd *rc; 806 int retries, rv; 807 struct icp_ccb *ic; 808 809 retries = ICP_RETRIES; 810 811 do { 812 ic = icp_ccb_alloc_wait(icp); 813 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 814 ic->ic_cmd.cmd_opcode = htole16(opcode); 815 816 switch (service) { 817 case ICP_CACHESERVICE: 818 if (opcode == ICP_IOCTL) { 819 icmd = &ic->ic_cmd.cmd_packet.ic; 820 icmd->ic_subfunc = htole16(arg1); 821 icmd->ic_channel = htole32(arg2); 822 icmd->ic_bufsize = htole32(arg3); 823 icmd->ic_addr = 824 htole32(icp->icp_scr_seg[0].ds_addr); 825 826 bus_dmamap_sync(icp->icp_dmat, 827 icp->icp_scr_dmamap, 0, arg3, 828 BUS_DMASYNC_PREWRITE | 829 BUS_DMASYNC_PREREAD); 830 } else { 831 cc = &ic->ic_cmd.cmd_packet.cc; 832 cc->cc_deviceno = htole16(arg1); 833 cc->cc_blockno = htole32(arg2); 834 } 835 break; 836 837 case ICP_SCSIRAWSERVICE: 838 rc = &ic->ic_cmd.cmd_packet.rc; 839 rc->rc_direction = htole32(arg1); 840 rc->rc_bus = arg2; 841 rc->rc_target = arg3; 842 rc->rc_lun = arg3 >> 8; 843 break; 844 } 845 846 ic->ic_service = service; 847 ic->ic_cmdlen = sizeof(ic->ic_cmd); 848 rv = icp_ccb_poll(icp, ic, 10000); 849 850 switch (service) { 851 case ICP_CACHESERVICE: 852 if (opcode == ICP_IOCTL) { 853 bus_dmamap_sync(icp->icp_dmat, 854 icp->icp_scr_dmamap, 0, arg3, 855 BUS_DMASYNC_POSTWRITE | 856 BUS_DMASYNC_POSTREAD); 857 } 858 break; 859 } 860 861 icp_ccb_free(icp, ic); 862 } while (rv != 0 && --retries > 0); 863 864 return (icp->icp_status == ICP_S_OK); 865 } 866 867 int 868 icp_ucmd(struct icp_softc *icp, gdt_ucmd_t *ucmd) 869 { 870 struct icp_ccb *ic; 871 struct icp_ucmd_ctx iu; 872 u_int32_t cnt; 873 int error; 874 875 if (ucmd->service == ICP_CACHESERVICE) { 876 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 877 cnt = ucmd->command.cmd_packet.ic.ic_bufsize; 878 if (cnt > GDT_SCRATCH_SZ) { 879 printf("%s: scratch buffer too small (%d/%d)\n", 880 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 881 return (EINVAL); 882 } 883 } else { 884 cnt = ucmd->command.cmd_packet.cc.cc_blockcnt * 885 ICP_SECTOR_SIZE; 886 if (cnt > GDT_SCRATCH_SZ) { 887 printf("%s: scratch buffer too small (%d/%d)\n", 888 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 889 return (EINVAL); 890 } 891 } 892 } else { 893 cnt = ucmd->command.cmd_packet.rc.rc_sdlen + 894 ucmd->command.cmd_packet.rc.rc_sense_len; 895 if (cnt > GDT_SCRATCH_SZ) { 896 printf("%s: scratch buffer too small (%d/%d)\n", 897 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 898 return (EINVAL); 899 } 900 } 901 902 iu.iu_ucmd = ucmd; 903 iu.iu_cnt = cnt; 904 905 ic = icp_ccb_alloc_wait(icp); 906 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 907 ic->ic_cmd.cmd_opcode = htole16(ucmd->command.cmd_opcode); 908 909 if (ucmd->service == ICP_CACHESERVICE) { 910 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 911 struct icp_ioctlcmd *icmd, *uicmd; 912 913 icmd = &ic->ic_cmd.cmd_packet.ic; 914 uicmd = &ucmd->command.cmd_packet.ic; 915 916 icmd->ic_subfunc = htole16(uicmd->ic_subfunc); 917 icmd->ic_channel = htole32(uicmd->ic_channel); 918 icmd->ic_bufsize = htole32(uicmd->ic_bufsize); 919 icmd->ic_addr = 920 htole32(icp->icp_scr_seg[0].ds_addr + 921 ICP_SCRATCH_UCMD); 922 } else { 923 struct icp_cachecmd *cc, *ucc; 924 925 cc = &ic->ic_cmd.cmd_packet.cc; 926 ucc = &ucmd->command.cmd_packet.cc; 927 928 cc->cc_deviceno = htole16(ucc->cc_deviceno); 929 cc->cc_blockno = htole32(ucc->cc_blockno); 930 cc->cc_blockcnt = htole32(ucc->cc_blockcnt); 931 cc->cc_addr = htole32(0xffffffffU); 932 cc->cc_nsgent = htole32(1); 933 cc->cc_sg[0].sg_addr = 934 htole32(icp->icp_scr_seg[0].ds_addr + 935 ICP_SCRATCH_UCMD); 936 cc->cc_sg[0].sg_len = htole32(cnt); 937 } 938 } else { 939 struct icp_rawcmd *rc, *urc; 940 941 rc = &ic->ic_cmd.cmd_packet.rc; 942 urc = &ucmd->command.cmd_packet.rc; 943 944 rc->rc_direction = htole32(urc->rc_direction); 945 rc->rc_sdata = htole32(0xffffffffU); 946 rc->rc_sdlen = htole32(urc->rc_sdlen); 947 rc->rc_clen = htole32(urc->rc_clen); 948 memcpy(rc->rc_cdb, urc->rc_cdb, sizeof(rc->rc_cdb)); 949 rc->rc_target = urc->rc_target; 950 rc->rc_lun = urc->rc_lun; 951 rc->rc_bus = urc->rc_bus; 952 rc->rc_sense_len = htole32(urc->rc_sense_len); 953 rc->rc_sense_addr = 954 htole32(icp->icp_scr_seg[0].ds_addr + 955 ICP_SCRATCH_UCMD + urc->rc_sdlen); 956 rc->rc_nsgent = htole32(1); 957 rc->rc_sg[0].sg_addr = 958 htole32(icp->icp_scr_seg[0].ds_addr + ICP_SCRATCH_UCMD); 959 rc->rc_sg[0].sg_len = htole32(cnt - urc->rc_sense_len); 960 } 961 962 ic->ic_service = ucmd->service; 963 ic->ic_cmdlen = sizeof(ic->ic_cmd); 964 ic->ic_context = &iu; 965 966 /* 967 * XXX What units are ucmd->timeout in? Until we know, we 968 * XXX just pull a number out of thin air. 969 */ 970 if (__predict_false((error = icp_ccb_wait_user(icp, ic, 30000)) != 0)) 971 printf("%s: error %d waiting for ucmd to complete\n", 972 icp->icp_dv.dv_xname, error); 973 974 /* icp_ucmd_intr() has updated ucmd. */ 975 icp_ccb_free(icp, ic); 976 977 return (error); 978 } 979 980 struct icp_ccb * 981 icp_ccb_alloc(struct icp_softc *icp) 982 { 983 struct icp_ccb *ic; 984 int s; 985 986 s = splbio(); 987 if (__predict_false((ic = 988 SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL)) { 989 splx(s); 990 return (NULL); 991 } 992 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 993 splx(s); 994 995 ic->ic_flags = IC_ALLOCED; 996 return (ic); 997 } 998 999 struct icp_ccb * 1000 icp_ccb_alloc_wait(struct icp_softc *icp) 1001 { 1002 struct icp_ccb *ic; 1003 int s; 1004 1005 s = splbio(); 1006 while ((ic = SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL) { 1007 icp->icp_flags |= ICP_F_WAIT_CCB; 1008 (void) tsleep(&icp->icp_ccb_freelist, PRIBIO, "icpccb", 0); 1009 } 1010 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 1011 splx(s); 1012 1013 ic->ic_flags = IC_ALLOCED; 1014 return (ic); 1015 } 1016 1017 void 1018 icp_ccb_free(struct icp_softc *icp, struct icp_ccb *ic) 1019 { 1020 int s; 1021 1022 s = splbio(); 1023 ic->ic_flags = 0; 1024 ic->ic_intr = NULL; 1025 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); 1026 if (__predict_false((icp->icp_flags & ICP_F_WAIT_CCB) != 0)) { 1027 icp->icp_flags &= ~ICP_F_WAIT_CCB; 1028 wakeup(&icp->icp_ccb_freelist); 1029 } 1030 splx(s); 1031 } 1032 1033 void 1034 icp_ccb_enqueue(struct icp_softc *icp, struct icp_ccb *ic) 1035 { 1036 int s; 1037 1038 s = splbio(); 1039 1040 if (ic != NULL) { 1041 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1042 SIMPLEQ_INSERT_TAIL(&icp->icp_ucmd_queue, ic, ic_chain); 1043 else 1044 SIMPLEQ_INSERT_TAIL(&icp->icp_ccb_queue, ic, ic_chain); 1045 } 1046 1047 for (; icp->icp_qfreeze == 0;) { 1048 if (__predict_false((ic = 1049 SIMPLEQ_FIRST(&icp->icp_ucmd_queue)) != NULL)) { 1050 struct icp_ucmd_ctx *iu = ic->ic_context; 1051 gdt_ucmd_t *ucmd = iu->iu_ucmd; 1052 1053 /* 1054 * All user-generated commands share the same 1055 * scratch space, so if one is already running, 1056 * we have to stall the command queue. 1057 */ 1058 if (icp->icp_ucmd_ccb != NULL) 1059 break; 1060 if ((*icp->icp_test_busy)(icp)) 1061 break; 1062 icp->icp_ucmd_ccb = ic; 1063 1064 if (iu->iu_cnt != 0) { 1065 memcpy(icp->icp_scr + ICP_SCRATCH_UCMD, 1066 ucmd->data, iu->iu_cnt); 1067 bus_dmamap_sync(icp->icp_dmat, 1068 icp->icp_scr_dmamap, 1069 ICP_SCRATCH_UCMD, iu->iu_cnt, 1070 BUS_DMASYNC_PREREAD | 1071 BUS_DMASYNC_PREWRITE); 1072 } 1073 } else if (__predict_true((ic = 1074 SIMPLEQ_FIRST(&icp->icp_ccb_queue)) != NULL)) { 1075 if ((*icp->icp_test_busy)(icp)) 1076 break; 1077 } else { 1078 /* no command found */ 1079 break; 1080 } 1081 icp_ccb_submit(icp, ic); 1082 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1083 SIMPLEQ_REMOVE_HEAD(&icp->icp_ucmd_queue, ic_chain); 1084 else 1085 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_queue, ic_chain); 1086 } 1087 1088 splx(s); 1089 } 1090 1091 int 1092 icp_ccb_map(struct icp_softc *icp, struct icp_ccb *ic, void *data, int size, 1093 int dir) 1094 { 1095 struct icp_sg *sg; 1096 int nsegs, i, rv; 1097 bus_dmamap_t xfer; 1098 1099 xfer = ic->ic_xfer_map; 1100 1101 rv = bus_dmamap_load(icp->icp_dmat, xfer, data, size, NULL, 1102 BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1103 ((dir & IC_XFER_IN) ? BUS_DMA_READ : BUS_DMA_WRITE)); 1104 if (rv != 0) 1105 return (rv); 1106 1107 nsegs = xfer->dm_nsegs; 1108 ic->ic_xfer_size = size; 1109 ic->ic_nsgent = nsegs; 1110 ic->ic_flags |= dir; 1111 sg = ic->ic_sg; 1112 1113 if (sg != NULL) { 1114 for (i = 0; i < nsegs; i++, sg++) { 1115 sg->sg_addr = htole32(xfer->dm_segs[i].ds_addr); 1116 sg->sg_len = htole32(xfer->dm_segs[i].ds_len); 1117 } 1118 } else if (nsegs > 1) 1119 panic("icp_ccb_map: no SG list specified, but nsegs > 1"); 1120 1121 if ((dir & IC_XFER_OUT) != 0) 1122 i = BUS_DMASYNC_PREWRITE; 1123 else /* if ((dir & IC_XFER_IN) != 0) */ 1124 i = BUS_DMASYNC_PREREAD; 1125 1126 bus_dmamap_sync(icp->icp_dmat, xfer, 0, ic->ic_xfer_size, i); 1127 return (0); 1128 } 1129 1130 void 1131 icp_ccb_unmap(struct icp_softc *icp, struct icp_ccb *ic) 1132 { 1133 int i; 1134 1135 if ((ic->ic_flags & IC_XFER_OUT) != 0) 1136 i = BUS_DMASYNC_POSTWRITE; 1137 else /* if ((ic->ic_flags & IC_XFER_IN) != 0) */ 1138 i = BUS_DMASYNC_POSTREAD; 1139 1140 bus_dmamap_sync(icp->icp_dmat, ic->ic_xfer_map, 0, ic->ic_xfer_size, i); 1141 bus_dmamap_unload(icp->icp_dmat, ic->ic_xfer_map); 1142 } 1143 1144 int 1145 icp_ccb_poll(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1146 { 1147 int s, rv; 1148 1149 s = splbio(); 1150 1151 for (timo = ICP_BUSY_WAIT_MS * 100; timo != 0; timo--) { 1152 if (!(*icp->icp_test_busy)(icp)) 1153 break; 1154 DELAY(10); 1155 } 1156 if (timo == 0) { 1157 printf("%s: submit: busy\n", icp->icp_dv.dv_xname); 1158 return (EAGAIN); 1159 } 1160 1161 icp_ccb_submit(icp, ic); 1162 1163 if (cold) { 1164 for (timo *= 10; timo != 0; timo--) { 1165 DELAY(100); 1166 icp_intr(icp); 1167 if ((ic->ic_flags & IC_COMPLETE) != 0) 1168 break; 1169 } 1170 } else { 1171 ic->ic_flags |= IC_WAITING; 1172 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1173 if ((rv = tsleep(ic, PRIBIO, "icpwccb", 1174 mstohz(timo))) != 0) { 1175 timo = 0; 1176 break; 1177 } 1178 } 1179 } 1180 1181 if (timo != 0) { 1182 if (ic->ic_status != ICP_S_OK) { 1183 #ifdef ICP_DEBUG 1184 printf("%s: request failed; status=0x%04x\n", 1185 icp->icp_dv.dv_xname, ic->ic_status); 1186 #endif 1187 rv = EIO; 1188 } else 1189 rv = 0; 1190 } else { 1191 printf("%s: command timed out\n", icp->icp_dv.dv_xname); 1192 rv = EIO; 1193 } 1194 1195 while ((*icp->icp_test_busy)(icp) != 0) 1196 DELAY(10); 1197 1198 splx(s); 1199 1200 return (rv); 1201 } 1202 1203 int 1204 icp_ccb_wait(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1205 { 1206 int s, rv; 1207 1208 ic->ic_flags |= IC_WAITING; 1209 1210 s = splbio(); 1211 icp_ccb_enqueue(icp, ic); 1212 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1213 if ((rv = tsleep(ic, PRIBIO, "icpwccb", mstohz(timo))) != 0) { 1214 splx(s); 1215 return (rv); 1216 } 1217 } 1218 splx(s); 1219 1220 if (ic->ic_status != ICP_S_OK) { 1221 printf("%s: command failed; status=%x\n", icp->icp_dv.dv_xname, 1222 ic->ic_status); 1223 return (EIO); 1224 } 1225 1226 return (0); 1227 } 1228 1229 int 1230 icp_ccb_wait_user(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1231 { 1232 int s, rv; 1233 1234 ic->ic_dv = &icp->icp_dv; 1235 ic->ic_intr = icp_ucmd_intr; 1236 ic->ic_flags |= IC_UCMD; 1237 1238 s = splbio(); 1239 icp_ccb_enqueue(icp, ic); 1240 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1241 if ((rv = tsleep(ic, PRIBIO, "icpwuccb", mstohz(timo))) != 0) { 1242 splx(s); 1243 return (rv); 1244 } 1245 } 1246 splx(s); 1247 1248 return (0); 1249 } 1250 1251 void 1252 icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic) 1253 { 1254 1255 ic->ic_cmdlen = (ic->ic_cmdlen + 3) & ~3; 1256 1257 (*icp->icp_set_sema0)(icp); 1258 DELAY(10); 1259 1260 ic->ic_cmd.cmd_boardnode = htole32(ICP_LOCALBOARD); 1261 ic->ic_cmd.cmd_cmdindex = htole32(ic->ic_ident); 1262 1263 icp->icp_running++; 1264 1265 (*icp->icp_copy_cmd)(icp, ic); 1266 (*icp->icp_release_event)(icp, ic); 1267 } 1268 1269 int 1270 icp_freeze(struct icp_softc *icp) 1271 { 1272 int s, error = 0; 1273 1274 s = splbio(); 1275 if (icp->icp_qfreeze++ == 0) { 1276 while (icp->icp_running != 0) { 1277 icp->icp_flags |= ICP_F_WAIT_FREEZE; 1278 error = tsleep(&icp->icp_qfreeze, PRIBIO|PCATCH, 1279 "icpqfrz", 0); 1280 if (error != 0 && --icp->icp_qfreeze == 0 && 1281 ICP_HAS_WORK(icp)) { 1282 icp_ccb_enqueue(icp, NULL); 1283 break; 1284 } 1285 } 1286 } 1287 splx(s); 1288 1289 return (error); 1290 } 1291 1292 void 1293 icp_unfreeze(struct icp_softc *icp) 1294 { 1295 int s; 1296 1297 s = splbio(); 1298 KDASSERT(icp->icp_qfreeze != 0); 1299 if (--icp->icp_qfreeze == 0 && ICP_HAS_WORK(icp)) 1300 icp_ccb_enqueue(icp, NULL); 1301 splx(s); 1302 } 1303 1304 /* XXX Global - should be per-controller? XXX */ 1305 static gdt_evt_str icp_event_buffer[ICP_MAX_EVENTS]; 1306 static int icp_event_oldidx; 1307 static int icp_event_lastidx; 1308 1309 gdt_evt_str * 1310 icp_store_event(struct icp_softc *icp, u_int16_t source, u_int16_t idx, 1311 gdt_evt_data *evt) 1312 { 1313 gdt_evt_str *e; 1314 1315 /* no source == no event */ 1316 if (source == 0) 1317 return (NULL); 1318 1319 e = &icp_event_buffer[icp_event_lastidx]; 1320 if (e->event_source == source && e->event_idx == idx && 1321 ((evt->size != 0 && e->event_data.size != 0 && 1322 memcmp(&e->event_data.eu, &evt->eu, evt->size) == 0) || 1323 (evt->size == 0 && e->event_data.size == 0 && 1324 strcmp((char *) e->event_data.event_string, 1325 (char *) evt->event_string) == 0))) { 1326 e->last_stamp = time_second; 1327 e->same_count++; 1328 } else { 1329 if (icp_event_buffer[icp_event_lastidx].event_source != 0) { 1330 icp_event_lastidx++; 1331 if (icp_event_lastidx == ICP_MAX_EVENTS) 1332 icp_event_lastidx = 0; 1333 if (icp_event_lastidx == icp_event_oldidx) { 1334 icp_event_oldidx++; 1335 if (icp_event_oldidx == ICP_MAX_EVENTS) 1336 icp_event_oldidx = 0; 1337 } 1338 } 1339 e = &icp_event_buffer[icp_event_lastidx]; 1340 e->event_source = source; 1341 e->event_idx = idx; 1342 e->first_stamp = e->last_stamp = time_second; 1343 e->same_count = 1; 1344 e->event_data = *evt; 1345 e->application = 0; 1346 } 1347 return (e); 1348 } 1349 1350 int 1351 icp_read_event(struct icp_softc *icp, int handle, gdt_evt_str *estr) 1352 { 1353 gdt_evt_str *e; 1354 int eindex, s; 1355 1356 s = splbio(); 1357 1358 if (handle == -1) 1359 eindex = icp_event_oldidx; 1360 else 1361 eindex = handle; 1362 1363 estr->event_source = 0; 1364 1365 if (eindex < 0 || eindex >= ICP_MAX_EVENTS) { 1366 splx(s); 1367 return (eindex); 1368 } 1369 1370 e = &icp_event_buffer[eindex]; 1371 if (e->event_source != 0) { 1372 if (eindex != icp_event_lastidx) { 1373 eindex++; 1374 if (eindex == ICP_MAX_EVENTS) 1375 eindex = 0; 1376 } else 1377 eindex = -1; 1378 memcpy(estr, e, sizeof(gdt_evt_str)); 1379 } 1380 1381 splx(s); 1382 1383 return (eindex); 1384 } 1385 1386 void 1387 icp_readapp_event(struct icp_softc *icp, u_int8_t application, 1388 gdt_evt_str *estr) 1389 { 1390 gdt_evt_str *e; 1391 int found = 0, eindex, s; 1392 1393 s = splbio(); 1394 1395 eindex = icp_event_oldidx; 1396 for (;;) { 1397 e = &icp_event_buffer[eindex]; 1398 if (e->event_source == 0) 1399 break; 1400 if ((e->application & application) == 0) { 1401 e->application |= application; 1402 found = 1; 1403 break; 1404 } 1405 if (eindex == icp_event_lastidx) 1406 break; 1407 eindex++; 1408 if (eindex == ICP_MAX_EVENTS) 1409 eindex = 0; 1410 } 1411 if (found) 1412 memcpy(estr, e, sizeof(gdt_evt_str)); 1413 else 1414 estr->event_source = 0; 1415 1416 splx(s); 1417 } 1418 1419 void 1420 icp_clear_events(struct icp_softc *icp) 1421 { 1422 int s; 1423 1424 s = splbio(); 1425 icp_event_oldidx = icp_event_lastidx = 0; 1426 memset(icp_event_buffer, 0, sizeof(icp_event_buffer)); 1427 splx(s); 1428 }
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