icp.c revision 1.35
1 /* $NetBSD: icp.c,v 1.35 2021/04/24 23:36:55 thorpej 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1999, 2000 Niklas Hallqvist. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by Niklas Hallqvist. 46 * 4. The name of the author may not be used to endorse or promote products 47 * derived from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 52 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 58 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 * 60 * from OpenBSD: gdt_common.c,v 1.12 2001/07/04 06:43:18 niklas Exp 61 */ 62 63 /* 64 * This driver would not have written if it was not for the hardware donations 65 * from both ICP-Vortex and ko.neT. I want to thank them for their support. 66 * 67 * Re-worked for NetBSD by Andrew Doran. Test hardware kindly supplied by 68 * Intel. 69 * 70 * Support for the ICP-Vortex management tools added by 71 * Jason R. Thorpe of Wasabi Systems, Inc., based on code 72 * provided by Achim Leubner <achim.leubner (at) intel.com>. 73 * 74 * Additional support for dynamic rescan of cacheservice drives by 75 * Jason R. Thorpe of Wasabi Systems, Inc. 76 */ 77 78 #include <sys/cdefs.h> 79 __KERNEL_RCSID(0, "$NetBSD: icp.c,v 1.35 2021/04/24 23:36:55 thorpej Exp $"); 80 81 #include <sys/param.h> 82 #include <sys/systm.h> 83 #include <sys/kernel.h> 84 #include <sys/device.h> 85 #include <sys/queue.h> 86 #include <sys/proc.h> 87 #include <sys/buf.h> 88 #include <sys/endian.h> 89 #include <sys/malloc.h> 90 #include <sys/disk.h> 91 92 #include <sys/bswap.h> 93 #include <sys/bus.h> 94 95 #include <dev/pci/pcireg.h> 96 #include <dev/pci/pcivar.h> 97 #include <dev/pci/pcidevs.h> 98 99 #include <dev/ic/icpreg.h> 100 #include <dev/ic/icpvar.h> 101 102 #include <dev/scsipi/scsipi_all.h> 103 #include <dev/scsipi/scsiconf.h> 104 105 #include "locators.h" 106 107 int icp_async_event(struct icp_softc *, int); 108 void icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic); 109 void icp_chain(struct icp_softc *); 110 int icp_print(void *, const char *); 111 void icp_watchdog(void *); 112 void icp_ucmd_intr(struct icp_ccb *); 113 void icp_recompute_openings(struct icp_softc *); 114 115 int icp_count; /* total # of controllers, for ioctl interface */ 116 117 /* 118 * Statistics for the ioctl interface to query. 119 * 120 * XXX Global. They should probably be made per-controller 121 * XXX at some point. 122 */ 123 gdt_statist_t icp_stats; 124 125 int 126 icp_init(struct icp_softc *icp, const char *intrstr) 127 { 128 struct icp_attach_args icpa; 129 struct icp_binfo binfo; 130 struct icp_ccb *ic; 131 u_int16_t cdev_cnt; 132 int i, j, state, feat, nsegs, rv; 133 int locs[ICPCF_NLOCS]; 134 135 state = 0; 136 137 if (intrstr != NULL) 138 aprint_normal_dev(icp->icp_dv, "interrupting at %s\n", 139 intrstr); 140 141 SIMPLEQ_INIT(&icp->icp_ccb_queue); 142 SIMPLEQ_INIT(&icp->icp_ccb_freelist); 143 SIMPLEQ_INIT(&icp->icp_ucmd_queue); 144 callout_init(&icp->icp_wdog_callout, 0); 145 146 /* 147 * Allocate a scratch area. 148 */ 149 if (bus_dmamap_create(icp->icp_dmat, ICP_SCRATCH_SIZE, 1, 150 ICP_SCRATCH_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 151 &icp->icp_scr_dmamap) != 0) { 152 aprint_error_dev(icp->icp_dv, "cannot create scratch dmamap\n"); 153 return (1); 154 } 155 state++; 156 157 if (bus_dmamem_alloc(icp->icp_dmat, ICP_SCRATCH_SIZE, PAGE_SIZE, 0, 158 icp->icp_scr_seg, 1, &nsegs, BUS_DMA_NOWAIT) != 0) { 159 aprint_error_dev(icp->icp_dv, "cannot alloc scratch dmamem\n"); 160 goto bail_out; 161 } 162 state++; 163 164 if (bus_dmamem_map(icp->icp_dmat, icp->icp_scr_seg, nsegs, 165 ICP_SCRATCH_SIZE, &icp->icp_scr, 0)) { 166 aprint_error_dev(icp->icp_dv, "cannot map scratch dmamem\n"); 167 goto bail_out; 168 } 169 state++; 170 171 if (bus_dmamap_load(icp->icp_dmat, icp->icp_scr_dmamap, icp->icp_scr, 172 ICP_SCRATCH_SIZE, NULL, BUS_DMA_NOWAIT)) { 173 aprint_error_dev(icp->icp_dv, "cannot load scratch dmamap\n"); 174 goto bail_out; 175 } 176 state++; 177 178 /* 179 * Allocate and initialize the command control blocks. 180 */ 181 ic = malloc(sizeof(*ic) * ICP_NCCBS, M_DEVBUF, M_WAITOK | M_ZERO); 182 icp->icp_ccbs = ic; 183 state++; 184 185 for (i = 0; i < ICP_NCCBS; i++, ic++) { 186 /* 187 * The first two command indexes have special meanings, so 188 * we can't use them. 189 */ 190 ic->ic_ident = i + 2; 191 rv = bus_dmamap_create(icp->icp_dmat, ICP_MAX_XFER, 192 ICP_MAXSG, ICP_MAX_XFER, 0, 193 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 194 &ic->ic_xfer_map); 195 if (rv != 0) 196 break; 197 icp->icp_nccbs++; 198 icp_ccb_free(icp, ic); 199 } 200 #ifdef DIAGNOSTIC 201 if (icp->icp_nccbs != ICP_NCCBS) 202 aprint_error_dev(icp->icp_dv, "%d/%d CCBs usable\n", 203 icp->icp_nccbs, ICP_NCCBS); 204 #endif 205 206 /* 207 * Initialize the controller. 208 */ 209 if (!icp_cmd(icp, ICP_SCREENSERVICE, ICP_INIT, 0, 0, 0)) { 210 aprint_error_dev(icp->icp_dv, "screen service init error %d\n", 211 icp->icp_status); 212 goto bail_out; 213 } 214 215 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 216 aprint_error_dev(icp->icp_dv, "cache service init error %d\n", 217 icp->icp_status); 218 goto bail_out; 219 } 220 221 icp_cmd(icp, ICP_CACHESERVICE, ICP_UNFREEZE_IO, 0, 0, 0); 222 223 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_MOUNT, 0xffff, 1, 0)) { 224 aprint_error_dev(icp->icp_dv, "cache service mount error %d\n", 225 icp->icp_status); 226 goto bail_out; 227 } 228 229 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 230 aprint_error_dev(icp->icp_dv, "cache service post-mount init error %d\n", 231 icp->icp_status); 232 goto bail_out; 233 } 234 cdev_cnt = (u_int16_t)icp->icp_info; 235 icp->icp_fw_vers = icp->icp_service; 236 237 if (!icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_INIT, 0, 0, 0)) { 238 aprint_error_dev(icp->icp_dv, "raw service init error %d\n", 239 icp->icp_status); 240 goto bail_out; 241 } 242 243 /* 244 * Set/get raw service features (scatter/gather). 245 */ 246 feat = 0; 247 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_SET_FEAT, ICP_SCATTER_GATHER, 248 0, 0)) 249 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_GET_FEAT, 0, 0, 0)) 250 feat = icp->icp_info; 251 252 if ((feat & ICP_SCATTER_GATHER) == 0) { 253 #ifdef DIAGNOSTIC 254 aprint_normal_dev(icp->icp_dv, 255 "scatter/gather not supported (raw service)\n"); 256 #endif 257 } else 258 icp->icp_features |= ICP_FEAT_RAWSERVICE; 259 260 /* 261 * Set/get cache service features (scatter/gather). 262 */ 263 feat = 0; 264 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_SET_FEAT, 0, 265 ICP_SCATTER_GATHER, 0)) 266 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_GET_FEAT, 0, 0, 0)) 267 feat = icp->icp_info; 268 269 if ((feat & ICP_SCATTER_GATHER) == 0) { 270 #ifdef DIAGNOSTIC 271 aprint_normal_dev(icp->icp_dv, 272 "scatter/gather not supported (cache service)\n"); 273 #endif 274 } else 275 icp->icp_features |= ICP_FEAT_CACHESERVICE; 276 277 /* 278 * Pull some information from the board and dump. 279 */ 280 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_BOARD_INFO, 281 ICP_INVALID_CHANNEL, sizeof(struct icp_binfo))) { 282 aprint_error_dev(icp->icp_dv, "unable to retrive board info\n"); 283 goto bail_out; 284 } 285 memcpy(&binfo, icp->icp_scr, sizeof(binfo)); 286 287 aprint_normal_dev(icp->icp_dv, 288 "model <%s>, firmware <%s>, %d channel(s), %dMB memory\n", 289 binfo.bi_type_string, binfo.bi_raid_string, 290 binfo.bi_chan_count, le32toh(binfo.bi_memsize) >> 20); 291 292 /* 293 * Determine the number of devices, and number of openings per 294 * device. 295 */ 296 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 297 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 298 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, j, 0, 299 0)) 300 continue; 301 302 icp->icp_cdr[j].cd_size = icp->icp_info; 303 if (icp->icp_cdr[j].cd_size != 0) 304 icp->icp_ndevs++; 305 306 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, j, 0, 307 0)) 308 icp->icp_cdr[j].cd_type = icp->icp_info; 309 } 310 } 311 312 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 313 icp->icp_nchan = binfo.bi_chan_count; 314 icp->icp_ndevs += icp->icp_nchan; 315 } 316 317 icp_recompute_openings(icp); 318 319 /* 320 * Attach SCSI channels. 321 */ 322 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 323 struct icp_ioc_version *iv; 324 struct icp_rawioc *ri; 325 struct icp_getch *gc; 326 327 iv = (struct icp_ioc_version *)icp->icp_scr; 328 iv->iv_version = htole32(ICP_IOC_NEWEST); 329 iv->iv_listents = ICP_MAXBUS; 330 iv->iv_firstchan = 0; 331 iv->iv_lastchan = ICP_MAXBUS - 1; 332 iv->iv_listoffset = htole32(sizeof(*iv)); 333 334 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 335 ICP_IOCHAN_RAW_DESC, ICP_INVALID_CHANNEL, 336 sizeof(*iv) + ICP_MAXBUS * sizeof(*ri))) { 337 ri = (struct icp_rawioc *)(iv + 1); 338 for (j = 0; j < binfo.bi_chan_count; j++, ri++) 339 icp->icp_bus_id[j] = ri->ri_procid; 340 } else { 341 /* 342 * Fall back to the old method. 343 */ 344 gc = (struct icp_getch *)icp->icp_scr; 345 346 for (j = 0; j < binfo.bi_chan_count; j++) { 347 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 348 ICP_SCSI_CHAN_CNT | ICP_L_CTRL_PATTERN, 349 ICP_IO_CHANNEL | ICP_INVALID_CHANNEL, 350 sizeof(*gc))) { 351 aprint_error_dev(icp->icp_dv, 352 "unable to get chan info"); 353 goto bail_out; 354 } 355 icp->icp_bus_id[j] = gc->gc_scsiid; 356 } 357 } 358 359 for (j = 0; j < binfo.bi_chan_count; j++) { 360 if (icp->icp_bus_id[j] > ICP_MAXID_FC) 361 icp->icp_bus_id[j] = ICP_MAXID_FC; 362 363 icpa.icpa_unit = j + ICPA_UNIT_SCSI; 364 365 locs[ICPCF_UNIT] = j + ICPA_UNIT_SCSI; 366 367 icp->icp_children[icpa.icpa_unit] = 368 config_found(icp->icp_dv, &icpa, icp_print, 369 CFARG_SUBMATCH, config_stdsubmatch, 370 CFARG_LOCATORS, locs, 371 CFARG_EOL); 372 } 373 } 374 375 /* 376 * Attach cache devices. 377 */ 378 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 379 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 380 if (icp->icp_cdr[j].cd_size == 0) 381 continue; 382 383 icpa.icpa_unit = j; 384 385 locs[ICPCF_UNIT] = j; 386 387 icp->icp_children[icpa.icpa_unit] = 388 config_found(icp->icp_dv, &icpa, icp_print, 389 CFARG_SUBMATCH, config_stdsubmatch, 390 CFARG_LOCATORS, locs, 391 CFARG_EOL); 392 } 393 } 394 395 /* 396 * Start the watchdog. 397 */ 398 icp_watchdog(icp); 399 400 /* 401 * Count the controller, and we're done! 402 */ 403 if (icp_count++ == 0) 404 mutex_init(&icp_ioctl_mutex, MUTEX_DEFAULT, IPL_NONE); 405 406 return (0); 407 408 bail_out: 409 if (state > 4) 410 for (j = 0; j < i; j++) 411 bus_dmamap_destroy(icp->icp_dmat, 412 icp->icp_ccbs[j].ic_xfer_map); 413 if (state > 3) 414 free(icp->icp_ccbs, M_DEVBUF); 415 if (state > 2) 416 bus_dmamap_unload(icp->icp_dmat, icp->icp_scr_dmamap); 417 if (state > 1) 418 bus_dmamem_unmap(icp->icp_dmat, icp->icp_scr, 419 ICP_SCRATCH_SIZE); 420 if (state > 0) 421 bus_dmamem_free(icp->icp_dmat, icp->icp_scr_seg, nsegs); 422 bus_dmamap_destroy(icp->icp_dmat, icp->icp_scr_dmamap); 423 424 return (1); 425 } 426 427 void 428 icp_register_servicecb(struct icp_softc *icp, int unit, 429 const struct icp_servicecb *cb) 430 { 431 432 icp->icp_servicecb[unit] = cb; 433 } 434 435 void 436 icp_rescan(struct icp_softc *icp, int unit) 437 { 438 struct icp_attach_args icpa; 439 u_int newsize, newtype; 440 int locs[ICPCF_NLOCS]; 441 442 /* 443 * NOTE: It is very important that the queue be frozen and not 444 * commands running when this is called. The ioctl mutex must 445 * also be held. 446 */ 447 448 KASSERT(icp->icp_qfreeze != 0); 449 KASSERT(icp->icp_running == 0); 450 KASSERT(unit < ICP_MAX_HDRIVES); 451 452 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, unit, 0, 0)) { 453 #ifdef ICP_DEBUG 454 printf("%s: rescan: unit %d ICP_INFO failed -> 0x%04x\n", 455 device_xname(icp->icp_dv), unit, icp->icp_status); 456 #endif 457 goto gone; 458 } 459 if ((newsize = icp->icp_info) == 0) { 460 #ifdef ICP_DEBUG 461 printf("%s: rescan: unit %d has zero size\n", 462 device_xname(icp->icp_dv), unit); 463 #endif 464 gone: 465 /* 466 * Host drive is no longer present; detach if a child 467 * is currently there. 468 */ 469 if (icp->icp_cdr[unit].cd_size != 0) 470 icp->icp_ndevs--; 471 icp->icp_cdr[unit].cd_size = 0; 472 if (icp->icp_children[unit] != NULL) { 473 (void) config_detach(icp->icp_children[unit], 474 DETACH_FORCE); 475 icp->icp_children[unit] = NULL; 476 } 477 return; 478 } 479 480 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, unit, 0, 0)) 481 newtype = icp->icp_info; 482 else { 483 #ifdef ICP_DEBUG 484 printf("%s: rescan: unit %d ICP_DEVTYPE failed\n", 485 device_xname(icp->icp_dv), unit); 486 #endif 487 newtype = 0; /* XXX? */ 488 } 489 490 #ifdef ICP_DEBUG 491 printf("%s: rescan: unit %d old %u/%u, new %u/%u\n", 492 device_xname(icp->icp_dv), unit, icp->icp_cdr[unit].cd_size, 493 icp->icp_cdr[unit].cd_type, newsize, newtype); 494 #endif 495 496 /* 497 * If the type or size changed, detach any old child (if it exists) 498 * and attach a new one. 499 */ 500 if (icp->icp_children[unit] == NULL || 501 newsize != icp->icp_cdr[unit].cd_size || 502 newtype != icp->icp_cdr[unit].cd_type) { 503 if (icp->icp_cdr[unit].cd_size == 0) 504 icp->icp_ndevs++; 505 icp->icp_cdr[unit].cd_size = newsize; 506 icp->icp_cdr[unit].cd_type = newtype; 507 if (icp->icp_children[unit] != NULL) 508 (void) config_detach(icp->icp_children[unit], 509 DETACH_FORCE); 510 511 icpa.icpa_unit = unit; 512 513 locs[ICPCF_UNIT] = unit; 514 515 icp->icp_children[unit] = 516 config_found(icp->icp_dv, &icpa, icp_print, 517 CFARG_SUBMATCH, config_stdsubmatch, 518 CFARG_LOCATORS, locs, 519 CFARG_EOL); 520 } 521 522 icp_recompute_openings(icp); 523 } 524 525 void 526 icp_rescan_all(struct icp_softc *icp) 527 { 528 int unit; 529 u_int16_t cdev_cnt; 530 531 /* 532 * This is the old method of rescanning the host drives. We 533 * start by reinitializing the cache service. 534 */ 535 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 536 printf("%s: unable to re-initialize cache service for rescan\n", 537 device_xname(icp->icp_dv)); 538 return; 539 } 540 cdev_cnt = (u_int16_t) icp->icp_info; 541 542 /* For each host drive, do the new-style rescan. */ 543 for (unit = 0; unit < cdev_cnt && unit < ICP_MAX_HDRIVES; unit++) 544 icp_rescan(icp, unit); 545 546 /* Now detach anything in the slots after cdev_cnt. */ 547 for (; unit < ICP_MAX_HDRIVES; unit++) { 548 if (icp->icp_cdr[unit].cd_size != 0) { 549 #ifdef ICP_DEBUG 550 printf("%s: rescan all: unit %d < new cdev_cnt (%d)\n", 551 device_xname(icp->icp_dv), unit, cdev_cnt); 552 #endif 553 icp->icp_ndevs--; 554 icp->icp_cdr[unit].cd_size = 0; 555 if (icp->icp_children[unit] != NULL) { 556 (void) config_detach(icp->icp_children[unit], 557 DETACH_FORCE); 558 icp->icp_children[unit] = NULL; 559 } 560 } 561 } 562 563 icp_recompute_openings(icp); 564 } 565 566 void 567 icp_recompute_openings(struct icp_softc *icp) 568 { 569 int unit, openings; 570 571 if (icp->icp_ndevs != 0) 572 openings = 573 (icp->icp_nccbs - ICP_NCCB_RESERVE) / icp->icp_ndevs; 574 else 575 openings = 0; 576 if (openings == icp->icp_openings) 577 return; 578 icp->icp_openings = openings; 579 580 #ifdef ICP_DEBUG 581 printf("%s: %d device%s, %d openings per device\n", 582 device_xname(icp->icp_dv), icp->icp_ndevs, 583 icp->icp_ndevs == 1 ? "" : "s", icp->icp_openings); 584 #endif 585 586 for (unit = 0; unit < ICP_MAX_HDRIVES + ICP_MAXBUS; unit++) { 587 if (icp->icp_children[unit] != NULL) 588 (*icp->icp_servicecb[unit]->iscb_openings)( 589 icp->icp_children[unit], icp->icp_openings); 590 } 591 } 592 593 void 594 icp_watchdog(void *cookie) 595 { 596 struct icp_softc *icp; 597 int s; 598 599 icp = cookie; 600 601 s = splbio(); 602 icp_intr(icp); 603 if (ICP_HAS_WORK(icp)) 604 icp_ccb_enqueue(icp, NULL); 605 splx(s); 606 607 callout_reset(&icp->icp_wdog_callout, hz * ICP_WATCHDOG_FREQ, 608 icp_watchdog, icp); 609 } 610 611 int 612 icp_print(void *aux, const char *pnp) 613 { 614 struct icp_attach_args *icpa; 615 const char *str; 616 617 icpa = (struct icp_attach_args *)aux; 618 619 if (pnp != NULL) { 620 if (icpa->icpa_unit < ICPA_UNIT_SCSI) 621 str = "block device"; 622 else 623 str = "SCSI channel"; 624 aprint_normal("%s at %s", str, pnp); 625 } 626 aprint_normal(" unit %d", icpa->icpa_unit); 627 628 return (UNCONF); 629 } 630 631 int 632 icp_async_event(struct icp_softc *icp, int service) 633 { 634 635 if (service == ICP_SCREENSERVICE) { 636 if (icp->icp_status == ICP_S_MSG_REQUEST) { 637 /* XXX */ 638 } 639 } else { 640 if ((icp->icp_fw_vers & 0xff) >= 0x1a) { 641 icp->icp_evt.size = 0; 642 icp->icp_evt.eu.async.ionode = 643 device_unit(icp->icp_dv); 644 icp->icp_evt.eu.async.status = icp->icp_status; 645 /* 646 * Severity and event string are filled in by the 647 * hardware interface interrupt handler. 648 */ 649 printf("%s: %s\n", device_xname(icp->icp_dv), 650 icp->icp_evt.event_string); 651 } else { 652 icp->icp_evt.size = sizeof(icp->icp_evt.eu.async); 653 icp->icp_evt.eu.async.ionode = 654 device_unit(icp->icp_dv); 655 icp->icp_evt.eu.async.service = service; 656 icp->icp_evt.eu.async.status = icp->icp_status; 657 icp->icp_evt.eu.async.info = icp->icp_info; 658 /* XXXJRT FIX THIS */ 659 *(u_int32_t *) icp->icp_evt.eu.async.scsi_coord = 660 icp->icp_info2; 661 } 662 icp_store_event(icp, GDT_ES_ASYNC, service, &icp->icp_evt); 663 } 664 665 return (0); 666 } 667 668 int 669 icp_intr(void *cookie) 670 { 671 struct icp_softc *icp; 672 struct icp_intr_ctx ctx; 673 struct icp_ccb *ic; 674 675 icp = cookie; 676 677 ctx.istatus = (*icp->icp_get_status)(icp); 678 if (!ctx.istatus) { 679 icp->icp_status = ICP_S_NO_STATUS; 680 return (0); 681 } 682 683 (*icp->icp_intr)(icp, &ctx); 684 685 icp->icp_status = ctx.cmd_status; 686 icp->icp_service = ctx.service; 687 icp->icp_info = ctx.info; 688 icp->icp_info2 = ctx.info2; 689 690 switch (ctx.istatus) { 691 case ICP_ASYNCINDEX: 692 icp_async_event(icp, ctx.service); 693 return (1); 694 695 case ICP_SPEZINDEX: 696 aprint_error_dev(icp->icp_dv, "uninitialized or unknown service (%d/%d)\n", 697 ctx.info, ctx.info2); 698 icp->icp_evt.size = sizeof(icp->icp_evt.eu.driver); 699 icp->icp_evt.eu.driver.ionode = device_unit(icp->icp_dv); 700 icp_store_event(icp, GDT_ES_DRIVER, 4, &icp->icp_evt); 701 return (1); 702 } 703 704 if ((ctx.istatus - 2) > icp->icp_nccbs) 705 panic("icp_intr: bad command index returned"); 706 707 ic = &icp->icp_ccbs[ctx.istatus - 2]; 708 ic->ic_status = icp->icp_status; 709 710 if ((ic->ic_flags & IC_ALLOCED) == 0) { 711 /* XXX ICP's "iir" driver just sends an event here. */ 712 panic("icp_intr: inactive CCB identified"); 713 } 714 715 /* 716 * Try to protect ourselves from the running command count already 717 * being 0 (e.g. if a polled command times out). 718 */ 719 KDASSERT(icp->icp_running != 0); 720 if (--icp->icp_running == 0 && 721 (icp->icp_flags & ICP_F_WAIT_FREEZE) != 0) { 722 icp->icp_flags &= ~ICP_F_WAIT_FREEZE; 723 wakeup(&icp->icp_qfreeze); 724 } 725 726 switch (icp->icp_status) { 727 case ICP_S_BSY: 728 #ifdef ICP_DEBUG 729 printf("%s: ICP_S_BSY received\n", device_xname(icp->icp_dv)); 730 #endif 731 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 732 SIMPLEQ_INSERT_HEAD(&icp->icp_ucmd_queue, ic, ic_chain); 733 else 734 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_queue, ic, ic_chain); 735 break; 736 737 default: 738 ic->ic_flags |= IC_COMPLETE; 739 740 if ((ic->ic_flags & IC_WAITING) != 0) 741 wakeup(ic); 742 else if (ic->ic_intr != NULL) 743 (*ic->ic_intr)(ic); 744 745 if (ICP_HAS_WORK(icp)) 746 icp_ccb_enqueue(icp, NULL); 747 748 break; 749 } 750 751 return (1); 752 } 753 754 struct icp_ucmd_ctx { 755 gdt_ucmd_t *iu_ucmd; 756 u_int32_t iu_cnt; 757 }; 758 759 void 760 icp_ucmd_intr(struct icp_ccb *ic) 761 { 762 struct icp_softc *icp = device_private(ic->ic_dv); 763 struct icp_ucmd_ctx *iu = ic->ic_context; 764 gdt_ucmd_t *ucmd = iu->iu_ucmd; 765 766 ucmd->status = icp->icp_status; 767 ucmd->info = icp->icp_info; 768 769 if (iu->iu_cnt != 0) { 770 bus_dmamap_sync(icp->icp_dmat, 771 icp->icp_scr_dmamap, 772 ICP_SCRATCH_UCMD, iu->iu_cnt, 773 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 774 memcpy(ucmd->data, 775 (char *)icp->icp_scr + ICP_SCRATCH_UCMD, iu->iu_cnt); 776 } 777 778 icp->icp_ucmd_ccb = NULL; 779 780 ic->ic_flags |= IC_COMPLETE; 781 wakeup(ic); 782 } 783 784 /* 785 * NOTE: We assume that it is safe to sleep here! 786 */ 787 int 788 icp_cmd(struct icp_softc *icp, u_int8_t service, u_int16_t opcode, 789 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 790 { 791 struct icp_ioctlcmd *icmd; 792 struct icp_cachecmd *cc; 793 struct icp_rawcmd *rc; 794 int retries, rv; 795 struct icp_ccb *ic; 796 797 retries = ICP_RETRIES; 798 799 do { 800 ic = icp_ccb_alloc_wait(icp); 801 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 802 ic->ic_cmd.cmd_opcode = htole16(opcode); 803 804 switch (service) { 805 case ICP_CACHESERVICE: 806 if (opcode == ICP_IOCTL) { 807 icmd = &ic->ic_cmd.cmd_packet.ic; 808 icmd->ic_subfunc = htole16(arg1); 809 icmd->ic_channel = htole32(arg2); 810 icmd->ic_bufsize = htole32(arg3); 811 icmd->ic_addr = 812 htole32(icp->icp_scr_seg[0].ds_addr); 813 814 bus_dmamap_sync(icp->icp_dmat, 815 icp->icp_scr_dmamap, 0, arg3, 816 BUS_DMASYNC_PREWRITE | 817 BUS_DMASYNC_PREREAD); 818 } else { 819 cc = &ic->ic_cmd.cmd_packet.cc; 820 cc->cc_deviceno = htole16(arg1); 821 cc->cc_blockno = htole32(arg2); 822 } 823 break; 824 825 case ICP_SCSIRAWSERVICE: 826 rc = &ic->ic_cmd.cmd_packet.rc; 827 rc->rc_direction = htole32(arg1); 828 rc->rc_bus = arg2; 829 rc->rc_target = arg3; 830 rc->rc_lun = arg3 >> 8; 831 break; 832 } 833 834 ic->ic_service = service; 835 ic->ic_cmdlen = sizeof(ic->ic_cmd); 836 rv = icp_ccb_poll(icp, ic, 10000); 837 838 switch (service) { 839 case ICP_CACHESERVICE: 840 if (opcode == ICP_IOCTL) { 841 bus_dmamap_sync(icp->icp_dmat, 842 icp->icp_scr_dmamap, 0, arg3, 843 BUS_DMASYNC_POSTWRITE | 844 BUS_DMASYNC_POSTREAD); 845 } 846 break; 847 } 848 849 icp_ccb_free(icp, ic); 850 } while (rv != 0 && --retries > 0); 851 852 return (icp->icp_status == ICP_S_OK); 853 } 854 855 int 856 icp_ucmd(struct icp_softc *icp, gdt_ucmd_t *ucmd) 857 { 858 struct icp_ccb *ic; 859 struct icp_ucmd_ctx iu; 860 u_int32_t cnt; 861 int error; 862 863 if (ucmd->service == ICP_CACHESERVICE) { 864 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 865 cnt = ucmd->command.cmd_packet.ic.ic_bufsize; 866 if (cnt > GDT_SCRATCH_SZ) { 867 aprint_error_dev(icp->icp_dv, "scratch buffer too small (%d/%d)\n", 868 GDT_SCRATCH_SZ, cnt); 869 return (EINVAL); 870 } 871 } else { 872 cnt = ucmd->command.cmd_packet.cc.cc_blockcnt * 873 ICP_SECTOR_SIZE; 874 if (cnt > GDT_SCRATCH_SZ) { 875 aprint_error_dev(icp->icp_dv, "scratch buffer too small (%d/%d)\n", 876 GDT_SCRATCH_SZ, cnt); 877 return (EINVAL); 878 } 879 } 880 } else { 881 cnt = ucmd->command.cmd_packet.rc.rc_sdlen + 882 ucmd->command.cmd_packet.rc.rc_sense_len; 883 if (cnt > GDT_SCRATCH_SZ) { 884 aprint_error_dev(icp->icp_dv, "scratch buffer too small (%d/%d)\n", 885 GDT_SCRATCH_SZ, cnt); 886 return (EINVAL); 887 } 888 } 889 890 iu.iu_ucmd = ucmd; 891 iu.iu_cnt = cnt; 892 893 ic = icp_ccb_alloc_wait(icp); 894 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 895 ic->ic_cmd.cmd_opcode = htole16(ucmd->command.cmd_opcode); 896 897 if (ucmd->service == ICP_CACHESERVICE) { 898 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 899 struct icp_ioctlcmd *icmd, *uicmd; 900 901 icmd = &ic->ic_cmd.cmd_packet.ic; 902 uicmd = &ucmd->command.cmd_packet.ic; 903 904 icmd->ic_subfunc = htole16(uicmd->ic_subfunc); 905 icmd->ic_channel = htole32(uicmd->ic_channel); 906 icmd->ic_bufsize = htole32(uicmd->ic_bufsize); 907 icmd->ic_addr = 908 htole32(icp->icp_scr_seg[0].ds_addr + 909 ICP_SCRATCH_UCMD); 910 } else { 911 struct icp_cachecmd *cc, *ucc; 912 913 cc = &ic->ic_cmd.cmd_packet.cc; 914 ucc = &ucmd->command.cmd_packet.cc; 915 916 cc->cc_deviceno = htole16(ucc->cc_deviceno); 917 cc->cc_blockno = htole32(ucc->cc_blockno); 918 cc->cc_blockcnt = htole32(ucc->cc_blockcnt); 919 cc->cc_addr = htole32(0xffffffffU); 920 cc->cc_nsgent = htole32(1); 921 cc->cc_sg[0].sg_addr = 922 htole32(icp->icp_scr_seg[0].ds_addr + 923 ICP_SCRATCH_UCMD); 924 cc->cc_sg[0].sg_len = htole32(cnt); 925 } 926 } else { 927 struct icp_rawcmd *rc, *urc; 928 929 rc = &ic->ic_cmd.cmd_packet.rc; 930 urc = &ucmd->command.cmd_packet.rc; 931 932 rc->rc_direction = htole32(urc->rc_direction); 933 rc->rc_sdata = htole32(0xffffffffU); 934 rc->rc_sdlen = htole32(urc->rc_sdlen); 935 rc->rc_clen = htole32(urc->rc_clen); 936 memcpy(rc->rc_cdb, urc->rc_cdb, sizeof(rc->rc_cdb)); 937 rc->rc_target = urc->rc_target; 938 rc->rc_lun = urc->rc_lun; 939 rc->rc_bus = urc->rc_bus; 940 rc->rc_sense_len = htole32(urc->rc_sense_len); 941 rc->rc_sense_addr = 942 htole32(icp->icp_scr_seg[0].ds_addr + 943 ICP_SCRATCH_UCMD + urc->rc_sdlen); 944 rc->rc_nsgent = htole32(1); 945 rc->rc_sg[0].sg_addr = 946 htole32(icp->icp_scr_seg[0].ds_addr + ICP_SCRATCH_UCMD); 947 rc->rc_sg[0].sg_len = htole32(cnt - urc->rc_sense_len); 948 } 949 950 ic->ic_service = ucmd->service; 951 ic->ic_cmdlen = sizeof(ic->ic_cmd); 952 ic->ic_context = &iu; 953 954 /* 955 * XXX What units are ucmd->timeout in? Until we know, we 956 * XXX just pull a number out of thin air. 957 */ 958 if (__predict_false((error = icp_ccb_wait_user(icp, ic, 30000)) != 0)) 959 aprint_error_dev(icp->icp_dv, "error %d waiting for ucmd to complete\n", 960 error); 961 962 /* icp_ucmd_intr() has updated ucmd. */ 963 icp_ccb_free(icp, ic); 964 965 return (error); 966 } 967 968 struct icp_ccb * 969 icp_ccb_alloc(struct icp_softc *icp) 970 { 971 struct icp_ccb *ic; 972 int s; 973 974 s = splbio(); 975 if (__predict_false((ic = 976 SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL)) { 977 splx(s); 978 return (NULL); 979 } 980 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 981 splx(s); 982 983 ic->ic_flags = IC_ALLOCED; 984 return (ic); 985 } 986 987 struct icp_ccb * 988 icp_ccb_alloc_wait(struct icp_softc *icp) 989 { 990 struct icp_ccb *ic; 991 int s; 992 993 s = splbio(); 994 while ((ic = SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL) { 995 icp->icp_flags |= ICP_F_WAIT_CCB; 996 (void) tsleep(&icp->icp_ccb_freelist, PRIBIO, "icpccb", 0); 997 } 998 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 999 splx(s); 1000 1001 ic->ic_flags = IC_ALLOCED; 1002 return (ic); 1003 } 1004 1005 void 1006 icp_ccb_free(struct icp_softc *icp, struct icp_ccb *ic) 1007 { 1008 int s; 1009 1010 s = splbio(); 1011 ic->ic_flags = 0; 1012 ic->ic_intr = NULL; 1013 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); 1014 if (__predict_false((icp->icp_flags & ICP_F_WAIT_CCB) != 0)) { 1015 icp->icp_flags &= ~ICP_F_WAIT_CCB; 1016 wakeup(&icp->icp_ccb_freelist); 1017 } 1018 splx(s); 1019 } 1020 1021 void 1022 icp_ccb_enqueue(struct icp_softc *icp, struct icp_ccb *ic) 1023 { 1024 int s; 1025 1026 s = splbio(); 1027 1028 if (ic != NULL) { 1029 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1030 SIMPLEQ_INSERT_TAIL(&icp->icp_ucmd_queue, ic, ic_chain); 1031 else 1032 SIMPLEQ_INSERT_TAIL(&icp->icp_ccb_queue, ic, ic_chain); 1033 } 1034 1035 for (; icp->icp_qfreeze == 0;) { 1036 if (__predict_false((ic = 1037 SIMPLEQ_FIRST(&icp->icp_ucmd_queue)) != NULL)) { 1038 struct icp_ucmd_ctx *iu = ic->ic_context; 1039 gdt_ucmd_t *ucmd = iu->iu_ucmd; 1040 1041 /* 1042 * All user-generated commands share the same 1043 * scratch space, so if one is already running, 1044 * we have to stall the command queue. 1045 */ 1046 if (icp->icp_ucmd_ccb != NULL) 1047 break; 1048 if ((*icp->icp_test_busy)(icp)) 1049 break; 1050 icp->icp_ucmd_ccb = ic; 1051 1052 if (iu->iu_cnt != 0) { 1053 memcpy((char *)icp->icp_scr + ICP_SCRATCH_UCMD, 1054 ucmd->data, iu->iu_cnt); 1055 bus_dmamap_sync(icp->icp_dmat, 1056 icp->icp_scr_dmamap, 1057 ICP_SCRATCH_UCMD, iu->iu_cnt, 1058 BUS_DMASYNC_PREREAD | 1059 BUS_DMASYNC_PREWRITE); 1060 } 1061 } else if (__predict_true((ic = 1062 SIMPLEQ_FIRST(&icp->icp_ccb_queue)) != NULL)) { 1063 if ((*icp->icp_test_busy)(icp)) 1064 break; 1065 } else { 1066 /* no command found */ 1067 break; 1068 } 1069 icp_ccb_submit(icp, ic); 1070 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1071 SIMPLEQ_REMOVE_HEAD(&icp->icp_ucmd_queue, ic_chain); 1072 else 1073 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_queue, ic_chain); 1074 } 1075 1076 splx(s); 1077 } 1078 1079 int 1080 icp_ccb_map(struct icp_softc *icp, struct icp_ccb *ic, void *data, int size, 1081 int dir) 1082 { 1083 struct icp_sg *sg; 1084 int nsegs, i, rv; 1085 bus_dmamap_t xfer; 1086 1087 xfer = ic->ic_xfer_map; 1088 1089 rv = bus_dmamap_load(icp->icp_dmat, xfer, data, size, NULL, 1090 BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1091 ((dir & IC_XFER_IN) ? BUS_DMA_READ : BUS_DMA_WRITE)); 1092 if (rv != 0) 1093 return (rv); 1094 1095 nsegs = xfer->dm_nsegs; 1096 ic->ic_xfer_size = size; 1097 ic->ic_nsgent = nsegs; 1098 ic->ic_flags |= dir; 1099 sg = ic->ic_sg; 1100 1101 if (sg != NULL) { 1102 for (i = 0; i < nsegs; i++, sg++) { 1103 sg->sg_addr = htole32(xfer->dm_segs[i].ds_addr); 1104 sg->sg_len = htole32(xfer->dm_segs[i].ds_len); 1105 } 1106 } else if (nsegs > 1) 1107 panic("icp_ccb_map: no SG list specified, but nsegs > 1"); 1108 1109 if ((dir & IC_XFER_OUT) != 0) 1110 i = BUS_DMASYNC_PREWRITE; 1111 else /* if ((dir & IC_XFER_IN) != 0) */ 1112 i = BUS_DMASYNC_PREREAD; 1113 1114 bus_dmamap_sync(icp->icp_dmat, xfer, 0, ic->ic_xfer_size, i); 1115 return (0); 1116 } 1117 1118 void 1119 icp_ccb_unmap(struct icp_softc *icp, struct icp_ccb *ic) 1120 { 1121 int i; 1122 1123 if ((ic->ic_flags & IC_XFER_OUT) != 0) 1124 i = BUS_DMASYNC_POSTWRITE; 1125 else /* if ((ic->ic_flags & IC_XFER_IN) != 0) */ 1126 i = BUS_DMASYNC_POSTREAD; 1127 1128 bus_dmamap_sync(icp->icp_dmat, ic->ic_xfer_map, 0, ic->ic_xfer_size, i); 1129 bus_dmamap_unload(icp->icp_dmat, ic->ic_xfer_map); 1130 } 1131 1132 int 1133 icp_ccb_poll(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1134 { 1135 int s, rv; 1136 1137 s = splbio(); 1138 1139 for (timo = ICP_BUSY_WAIT_MS * 100; timo != 0; timo--) { 1140 if (!(*icp->icp_test_busy)(icp)) 1141 break; 1142 DELAY(10); 1143 } 1144 if (timo == 0) { 1145 printf("%s: submit: busy\n", device_xname(icp->icp_dv)); 1146 return (EAGAIN); 1147 } 1148 1149 icp_ccb_submit(icp, ic); 1150 1151 if (cold) { 1152 for (timo *= 10; timo != 0; timo--) { 1153 DELAY(100); 1154 icp_intr(icp); 1155 if ((ic->ic_flags & IC_COMPLETE) != 0) 1156 break; 1157 } 1158 } else { 1159 ic->ic_flags |= IC_WAITING; 1160 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1161 if ((rv = tsleep(ic, PRIBIO, "icpwccb", 1162 mstohz(timo))) != 0) { 1163 timo = 0; 1164 break; 1165 } 1166 } 1167 } 1168 1169 if (timo != 0) { 1170 if (ic->ic_status != ICP_S_OK) { 1171 #ifdef ICP_DEBUG 1172 printf("%s: request failed; status=0x%04x\n", 1173 device_xname(icp->icp_dv), ic->ic_status); 1174 #endif 1175 rv = EIO; 1176 } else 1177 rv = 0; 1178 } else { 1179 aprint_error_dev(icp->icp_dv, "command timed out\n"); 1180 rv = EIO; 1181 } 1182 1183 while ((*icp->icp_test_busy)(icp) != 0) 1184 DELAY(10); 1185 1186 splx(s); 1187 1188 return (rv); 1189 } 1190 1191 int 1192 icp_ccb_wait(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1193 { 1194 int s, rv; 1195 1196 ic->ic_flags |= IC_WAITING; 1197 1198 s = splbio(); 1199 icp_ccb_enqueue(icp, ic); 1200 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1201 if ((rv = tsleep(ic, PRIBIO, "icpwccb", mstohz(timo))) != 0) { 1202 splx(s); 1203 return (rv); 1204 } 1205 } 1206 splx(s); 1207 1208 if (ic->ic_status != ICP_S_OK) { 1209 aprint_error_dev(icp->icp_dv, "command failed; status=%x\n", 1210 ic->ic_status); 1211 return (EIO); 1212 } 1213 1214 return (0); 1215 } 1216 1217 int 1218 icp_ccb_wait_user(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1219 { 1220 int s, rv; 1221 1222 ic->ic_dv = icp->icp_dv; 1223 ic->ic_intr = icp_ucmd_intr; 1224 ic->ic_flags |= IC_UCMD; 1225 1226 s = splbio(); 1227 icp_ccb_enqueue(icp, ic); 1228 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1229 if ((rv = tsleep(ic, PRIBIO, "icpwuccb", mstohz(timo))) != 0) { 1230 splx(s); 1231 return (rv); 1232 } 1233 } 1234 splx(s); 1235 1236 return (0); 1237 } 1238 1239 void 1240 icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic) 1241 { 1242 1243 ic->ic_cmdlen = (ic->ic_cmdlen + 3) & ~3; 1244 1245 (*icp->icp_set_sema0)(icp); 1246 DELAY(10); 1247 1248 ic->ic_cmd.cmd_boardnode = htole32(ICP_LOCALBOARD); 1249 ic->ic_cmd.cmd_cmdindex = htole32(ic->ic_ident); 1250 1251 icp->icp_running++; 1252 1253 (*icp->icp_copy_cmd)(icp, ic); 1254 (*icp->icp_release_event)(icp, ic); 1255 } 1256 1257 int 1258 icp_freeze(struct icp_softc *icp) 1259 { 1260 int s, error = 0; 1261 1262 s = splbio(); 1263 if (icp->icp_qfreeze++ == 0) { 1264 while (icp->icp_running != 0) { 1265 icp->icp_flags |= ICP_F_WAIT_FREEZE; 1266 error = tsleep(&icp->icp_qfreeze, PRIBIO|PCATCH, 1267 "icpqfrz", 0); 1268 if (error != 0 && --icp->icp_qfreeze == 0 && 1269 ICP_HAS_WORK(icp)) { 1270 icp_ccb_enqueue(icp, NULL); 1271 break; 1272 } 1273 } 1274 } 1275 splx(s); 1276 1277 return (error); 1278 } 1279 1280 void 1281 icp_unfreeze(struct icp_softc *icp) 1282 { 1283 int s; 1284 1285 s = splbio(); 1286 KDASSERT(icp->icp_qfreeze != 0); 1287 if (--icp->icp_qfreeze == 0 && ICP_HAS_WORK(icp)) 1288 icp_ccb_enqueue(icp, NULL); 1289 splx(s); 1290 } 1291 1292 /* XXX Global - should be per-controller? XXX */ 1293 static gdt_evt_str icp_event_buffer[ICP_MAX_EVENTS]; 1294 static int icp_event_oldidx; 1295 static int icp_event_lastidx; 1296 1297 gdt_evt_str * 1298 icp_store_event(struct icp_softc *icp, u_int16_t source, u_int16_t idx, 1299 gdt_evt_data *evt) 1300 { 1301 gdt_evt_str *e; 1302 1303 /* no source == no event */ 1304 if (source == 0) 1305 return (NULL); 1306 1307 e = &icp_event_buffer[icp_event_lastidx]; 1308 if (e->event_source == source && e->event_idx == idx && 1309 ((evt->size != 0 && e->event_data.size != 0 && 1310 memcmp(&e->event_data.eu, &evt->eu, evt->size) == 0) || 1311 (evt->size == 0 && e->event_data.size == 0 && 1312 strcmp((char *) e->event_data.event_string, 1313 (char *) evt->event_string) == 0))) { 1314 e->last_stamp = time_second; 1315 e->same_count++; 1316 } else { 1317 if (icp_event_buffer[icp_event_lastidx].event_source != 0) { 1318 icp_event_lastidx++; 1319 if (icp_event_lastidx == ICP_MAX_EVENTS) 1320 icp_event_lastidx = 0; 1321 if (icp_event_lastidx == icp_event_oldidx) { 1322 icp_event_oldidx++; 1323 if (icp_event_oldidx == ICP_MAX_EVENTS) 1324 icp_event_oldidx = 0; 1325 } 1326 } 1327 e = &icp_event_buffer[icp_event_lastidx]; 1328 e->event_source = source; 1329 e->event_idx = idx; 1330 e->first_stamp = e->last_stamp = time_second; 1331 e->same_count = 1; 1332 e->event_data = *evt; 1333 e->application = 0; 1334 } 1335 return (e); 1336 } 1337 1338 int 1339 icp_read_event(struct icp_softc *icp, int handle, gdt_evt_str *estr) 1340 { 1341 gdt_evt_str *e; 1342 int eindex, s; 1343 1344 s = splbio(); 1345 1346 if (handle == -1) 1347 eindex = icp_event_oldidx; 1348 else 1349 eindex = handle; 1350 1351 estr->event_source = 0; 1352 1353 if (eindex < 0 || eindex >= ICP_MAX_EVENTS) { 1354 splx(s); 1355 return (eindex); 1356 } 1357 1358 e = &icp_event_buffer[eindex]; 1359 if (e->event_source != 0) { 1360 if (eindex != icp_event_lastidx) { 1361 eindex++; 1362 if (eindex == ICP_MAX_EVENTS) 1363 eindex = 0; 1364 } else 1365 eindex = -1; 1366 memcpy(estr, e, sizeof(gdt_evt_str)); 1367 } 1368 1369 splx(s); 1370 1371 return (eindex); 1372 } 1373 1374 void 1375 icp_readapp_event(struct icp_softc *icp, u_int8_t application, 1376 gdt_evt_str *estr) 1377 { 1378 gdt_evt_str *e; 1379 int found = 0, eindex, s; 1380 1381 s = splbio(); 1382 1383 eindex = icp_event_oldidx; 1384 for (;;) { 1385 e = &icp_event_buffer[eindex]; 1386 if (e->event_source == 0) 1387 break; 1388 if ((e->application & application) == 0) { 1389 e->application |= application; 1390 found = 1; 1391 break; 1392 } 1393 if (eindex == icp_event_lastidx) 1394 break; 1395 eindex++; 1396 if (eindex == ICP_MAX_EVENTS) 1397 eindex = 0; 1398 } 1399 if (found) 1400 memcpy(estr, e, sizeof(gdt_evt_str)); 1401 else 1402 estr->event_source = 0; 1403 1404 splx(s); 1405 } 1406 1407 void 1408 icp_clear_events(struct icp_softc *icp) 1409 { 1410 int s; 1411 1412 s = splbio(); 1413 icp_event_oldidx = icp_event_lastidx = 0; 1414 memset(icp_event_buffer, 0, sizeof(icp_event_buffer)); 1415 splx(s); 1416 } 1417
Indexes created Tue Sep 23 07:09:52 GMT 2025