icp.c revision 1.28
1 /* $NetBSD: icp.c,v 1.28 2008/04/28 20:23:50 martin 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 1.28 2008/04/28 20:23:50 martin 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 <uvm/uvm_extern.h> 93 94 #include <sys/bswap.h> 95 #include <sys/bus.h> 96 97 #include <dev/pci/pcireg.h> 98 #include <dev/pci/pcivar.h> 99 #include <dev/pci/pcidevs.h> 100 101 #include <dev/ic/icpreg.h> 102 #include <dev/ic/icpvar.h> 103 104 #include <dev/scsipi/scsipi_all.h> 105 #include <dev/scsipi/scsiconf.h> 106 107 #include "locators.h" 108 109 int icp_async_event(struct icp_softc *, int); 110 void icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic); 111 void icp_chain(struct icp_softc *); 112 int icp_print(void *, const char *); 113 void icp_watchdog(void *); 114 void icp_ucmd_intr(struct icp_ccb *); 115 void icp_recompute_openings(struct icp_softc *); 116 117 int icp_count; /* total # of controllers, for ioctl interface */ 118 119 /* 120 * Statistics for the ioctl interface to query. 121 * 122 * XXX Global. They should probably be made per-controller 123 * XXX at some point. 124 */ 125 gdt_statist_t icp_stats; 126 127 int 128 icp_init(struct icp_softc *icp, const char *intrstr) 129 { 130 struct icp_attach_args icpa; 131 struct icp_binfo binfo; 132 struct icp_ccb *ic; 133 u_int16_t cdev_cnt; 134 int i, j, state, feat, nsegs, rv; 135 int locs[ICPCF_NLOCS]; 136 137 state = 0; 138 139 if (intrstr != NULL) 140 aprint_normal_dev(&icp->icp_dv, "interrupting at %s\n", 141 intrstr); 142 143 SIMPLEQ_INIT(&icp->icp_ccb_queue); 144 SIMPLEQ_INIT(&icp->icp_ccb_freelist); 145 SIMPLEQ_INIT(&icp->icp_ucmd_queue); 146 callout_init(&icp->icp_wdog_callout, 0); 147 148 /* 149 * Allocate a scratch area. 150 */ 151 if (bus_dmamap_create(icp->icp_dmat, ICP_SCRATCH_SIZE, 1, 152 ICP_SCRATCH_SIZE, 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 153 &icp->icp_scr_dmamap) != 0) { 154 aprint_error_dev(&icp->icp_dv, "cannot create scratch dmamap\n"); 155 return (1); 156 } 157 state++; 158 159 if (bus_dmamem_alloc(icp->icp_dmat, ICP_SCRATCH_SIZE, PAGE_SIZE, 0, 160 icp->icp_scr_seg, 1, &nsegs, BUS_DMA_NOWAIT) != 0) { 161 aprint_error_dev(&icp->icp_dv, "cannot alloc scratch dmamem\n"); 162 goto bail_out; 163 } 164 state++; 165 166 if (bus_dmamem_map(icp->icp_dmat, icp->icp_scr_seg, nsegs, 167 ICP_SCRATCH_SIZE, &icp->icp_scr, 0)) { 168 aprint_error_dev(&icp->icp_dv, "cannot map scratch dmamem\n"); 169 goto bail_out; 170 } 171 state++; 172 173 if (bus_dmamap_load(icp->icp_dmat, icp->icp_scr_dmamap, icp->icp_scr, 174 ICP_SCRATCH_SIZE, NULL, BUS_DMA_NOWAIT)) { 175 aprint_error_dev(&icp->icp_dv, "cannot load scratch dmamap\n"); 176 goto bail_out; 177 } 178 state++; 179 180 /* 181 * Allocate and initialize the command control blocks. 182 */ 183 ic = malloc(sizeof(*ic) * ICP_NCCBS, M_DEVBUF, M_NOWAIT | M_ZERO); 184 if ((icp->icp_ccbs = ic) == NULL) { 185 aprint_error_dev(&icp->icp_dv, "malloc() failed\n"); 186 goto bail_out; 187 } 188 state++; 189 190 for (i = 0; i < ICP_NCCBS; i++, ic++) { 191 /* 192 * The first two command indexes have special meanings, so 193 * we can't use them. 194 */ 195 ic->ic_ident = i + 2; 196 rv = bus_dmamap_create(icp->icp_dmat, ICP_MAX_XFER, 197 ICP_MAXSG, ICP_MAX_XFER, 0, 198 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 199 &ic->ic_xfer_map); 200 if (rv != 0) 201 break; 202 icp->icp_nccbs++; 203 icp_ccb_free(icp, ic); 204 } 205 #ifdef DIAGNOSTIC 206 if (icp->icp_nccbs != ICP_NCCBS) 207 aprint_error_dev(&icp->icp_dv, "%d/%d CCBs usable\n", 208 icp->icp_nccbs, ICP_NCCBS); 209 #endif 210 211 /* 212 * Initalize the controller. 213 */ 214 if (!icp_cmd(icp, ICP_SCREENSERVICE, ICP_INIT, 0, 0, 0)) { 215 aprint_error_dev(&icp->icp_dv, "screen service init error %d\n", 216 icp->icp_status); 217 goto bail_out; 218 } 219 220 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 221 aprint_error_dev(&icp->icp_dv, "cache service init error %d\n", 222 icp->icp_status); 223 goto bail_out; 224 } 225 226 icp_cmd(icp, ICP_CACHESERVICE, ICP_UNFREEZE_IO, 0, 0, 0); 227 228 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_MOUNT, 0xffff, 1, 0)) { 229 aprint_error_dev(&icp->icp_dv, "cache service mount error %d\n", 230 icp->icp_status); 231 goto bail_out; 232 } 233 234 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 235 aprint_error_dev(&icp->icp_dv, "cache service post-mount init error %d\n", 236 icp->icp_status); 237 goto bail_out; 238 } 239 cdev_cnt = (u_int16_t)icp->icp_info; 240 icp->icp_fw_vers = icp->icp_service; 241 242 if (!icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_INIT, 0, 0, 0)) { 243 aprint_error_dev(&icp->icp_dv, "raw service init error %d\n", 244 icp->icp_status); 245 goto bail_out; 246 } 247 248 /* 249 * Set/get raw service features (scatter/gather). 250 */ 251 feat = 0; 252 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_SET_FEAT, ICP_SCATTER_GATHER, 253 0, 0)) 254 if (icp_cmd(icp, ICP_SCSIRAWSERVICE, ICP_GET_FEAT, 0, 0, 0)) 255 feat = icp->icp_info; 256 257 if ((feat & ICP_SCATTER_GATHER) == 0) { 258 #ifdef DIAGNOSTIC 259 aprint_normal_dev(&icp->icp_dv, 260 "scatter/gather not supported (raw service)\n"); 261 #endif 262 } else 263 icp->icp_features |= ICP_FEAT_RAWSERVICE; 264 265 /* 266 * Set/get cache service features (scatter/gather). 267 */ 268 feat = 0; 269 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_SET_FEAT, 0, 270 ICP_SCATTER_GATHER, 0)) 271 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_GET_FEAT, 0, 0, 0)) 272 feat = icp->icp_info; 273 274 if ((feat & ICP_SCATTER_GATHER) == 0) { 275 #ifdef DIAGNOSTIC 276 aprint_normal_dev(&icp->icp_dv, 277 "scatter/gather not supported (cache service)\n"); 278 #endif 279 } else 280 icp->icp_features |= ICP_FEAT_CACHESERVICE; 281 282 /* 283 * Pull some information from the board and dump. 284 */ 285 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, ICP_BOARD_INFO, 286 ICP_INVALID_CHANNEL, sizeof(struct icp_binfo))) { 287 aprint_error_dev(&icp->icp_dv, "unable to retrive board info\n"); 288 goto bail_out; 289 } 290 memcpy(&binfo, icp->icp_scr, sizeof(binfo)); 291 292 aprint_normal_dev(&icp->icp_dv, 293 "model <%s>, firmware <%s>, %d channel(s), %dMB memory\n", 294 binfo.bi_type_string, binfo.bi_raid_string, 295 binfo.bi_chan_count, le32toh(binfo.bi_memsize) >> 20); 296 297 /* 298 * Determine the number of devices, and number of openings per 299 * device. 300 */ 301 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 302 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 303 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, j, 0, 304 0)) 305 continue; 306 307 icp->icp_cdr[j].cd_size = icp->icp_info; 308 if (icp->icp_cdr[j].cd_size != 0) 309 icp->icp_ndevs++; 310 311 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, j, 0, 312 0)) 313 icp->icp_cdr[j].cd_type = icp->icp_info; 314 } 315 } 316 317 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 318 icp->icp_nchan = binfo.bi_chan_count; 319 icp->icp_ndevs += icp->icp_nchan; 320 } 321 322 icp_recompute_openings(icp); 323 324 /* 325 * Attach SCSI channels. 326 */ 327 if (icp->icp_features & ICP_FEAT_RAWSERVICE) { 328 struct icp_ioc_version *iv; 329 struct icp_rawioc *ri; 330 struct icp_getch *gc; 331 332 iv = (struct icp_ioc_version *)icp->icp_scr; 333 iv->iv_version = htole32(ICP_IOC_NEWEST); 334 iv->iv_listents = ICP_MAXBUS; 335 iv->iv_firstchan = 0; 336 iv->iv_lastchan = ICP_MAXBUS - 1; 337 iv->iv_listoffset = htole32(sizeof(*iv)); 338 339 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 340 ICP_IOCHAN_RAW_DESC, ICP_INVALID_CHANNEL, 341 sizeof(*iv) + ICP_MAXBUS * sizeof(*ri))) { 342 ri = (struct icp_rawioc *)(iv + 1); 343 for (j = 0; j < binfo.bi_chan_count; j++, ri++) 344 icp->icp_bus_id[j] = ri->ri_procid; 345 } else { 346 /* 347 * Fall back to the old method. 348 */ 349 gc = (struct icp_getch *)icp->icp_scr; 350 351 for (j = 0; j < binfo.bi_chan_count; j++) { 352 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_IOCTL, 353 ICP_SCSI_CHAN_CNT | ICP_L_CTRL_PATTERN, 354 ICP_IO_CHANNEL | ICP_INVALID_CHANNEL, 355 sizeof(*gc))) { 356 aprint_error_dev(&icp->icp_dv, 357 "unable to get chan info"); 358 goto bail_out; 359 } 360 icp->icp_bus_id[j] = gc->gc_scsiid; 361 } 362 } 363 364 for (j = 0; j < binfo.bi_chan_count; j++) { 365 if (icp->icp_bus_id[j] > ICP_MAXID_FC) 366 icp->icp_bus_id[j] = ICP_MAXID_FC; 367 368 icpa.icpa_unit = j + ICPA_UNIT_SCSI; 369 370 locs[ICPCF_UNIT] = j + ICPA_UNIT_SCSI; 371 372 icp->icp_children[icpa.icpa_unit] = 373 config_found_sm_loc(&icp->icp_dv, "icp", locs, 374 &icpa, icp_print, config_stdsubmatch); 375 } 376 } 377 378 /* 379 * Attach cache devices. 380 */ 381 if (icp->icp_features & ICP_FEAT_CACHESERVICE) { 382 for (j = 0; j < cdev_cnt && j < ICP_MAX_HDRIVES; j++) { 383 if (icp->icp_cdr[j].cd_size == 0) 384 continue; 385 386 icpa.icpa_unit = j; 387 388 locs[ICPCF_UNIT] = j; 389 390 icp->icp_children[icpa.icpa_unit] = 391 config_found_sm_loc(&icp->icp_dv, "icp", locs, 392 &icpa, icp_print, config_stdsubmatch); 393 } 394 } 395 396 /* 397 * Start the watchdog. 398 */ 399 icp_watchdog(icp); 400 401 /* 402 * Count the controller, and we're done! 403 */ 404 if (icp_count++ == 0) 405 mutex_init(&icp_ioctl_mutex, MUTEX_DEFAULT, IPL_NONE); 406 407 return (0); 408 409 bail_out: 410 if (state > 4) 411 for (j = 0; j < i; j++) 412 bus_dmamap_destroy(icp->icp_dmat, 413 icp->icp_ccbs[j].ic_xfer_map); 414 if (state > 3) 415 free(icp->icp_ccbs, M_DEVBUF); 416 if (state > 2) 417 bus_dmamap_unload(icp->icp_dmat, icp->icp_scr_dmamap); 418 if (state > 1) 419 bus_dmamem_unmap(icp->icp_dmat, icp->icp_scr, 420 ICP_SCRATCH_SIZE); 421 if (state > 0) 422 bus_dmamem_free(icp->icp_dmat, icp->icp_scr_seg, nsegs); 423 bus_dmamap_destroy(icp->icp_dmat, icp->icp_scr_dmamap); 424 425 return (1); 426 } 427 428 void 429 icp_register_servicecb(struct icp_softc *icp, int unit, 430 const struct icp_servicecb *cb) 431 { 432 433 icp->icp_servicecb[unit] = cb; 434 } 435 436 void 437 icp_rescan(struct icp_softc *icp, int unit) 438 { 439 struct icp_attach_args icpa; 440 u_int newsize, newtype; 441 int locs[ICPCF_NLOCS]; 442 443 /* 444 * NOTE: It is very important that the queue be frozen and not 445 * commands running when this is called. The ioctl mutex must 446 * also be held. 447 */ 448 449 KASSERT(icp->icp_qfreeze != 0); 450 KASSERT(icp->icp_running == 0); 451 KASSERT(unit < ICP_MAX_HDRIVES); 452 453 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INFO, unit, 0, 0)) { 454 #ifdef ICP_DEBUG 455 printf("%s: rescan: unit %d ICP_INFO failed -> 0x%04x\n", 456 device_xname(&icp->icp_dv), unit, icp->icp_status); 457 #endif 458 goto gone; 459 } 460 if ((newsize = icp->icp_info) == 0) { 461 #ifdef ICP_DEBUG 462 printf("%s: rescan: unit %d has zero size\n", 463 device-xname(&icp->icp_dv), unit); 464 #endif 465 gone: 466 /* 467 * Host drive is no longer present; detach if a child 468 * is currently there. 469 */ 470 if (icp->icp_cdr[unit].cd_size != 0) 471 icp->icp_ndevs--; 472 icp->icp_cdr[unit].cd_size = 0; 473 if (icp->icp_children[unit] != NULL) { 474 (void) config_detach(icp->icp_children[unit], 475 DETACH_FORCE); 476 icp->icp_children[unit] = NULL; 477 } 478 return; 479 } 480 481 if (icp_cmd(icp, ICP_CACHESERVICE, ICP_DEVTYPE, unit, 0, 0)) 482 newtype = icp->icp_info; 483 else { 484 #ifdef ICP_DEBUG 485 printf("%s: rescan: unit %d ICP_DEVTYPE failed\n", 486 device_xname(&icp->icp_dv), unit); 487 #endif 488 newtype = 0; /* XXX? */ 489 } 490 491 #ifdef ICP_DEBUG 492 printf("%s: rescan: unit %d old %u/%u, new %u/%u\n", 493 device_xname(&icp->icp_dv), unit, icp->icp_cdr[unit].cd_size, 494 icp->icp_cdr[unit].cd_type, newsize, newtype); 495 #endif 496 497 /* 498 * If the type or size changed, detach any old child (if it exists) 499 * and attach a new one. 500 */ 501 if (icp->icp_children[unit] == NULL || 502 newsize != icp->icp_cdr[unit].cd_size || 503 newtype != icp->icp_cdr[unit].cd_type) { 504 if (icp->icp_cdr[unit].cd_size == 0) 505 icp->icp_ndevs++; 506 icp->icp_cdr[unit].cd_size = newsize; 507 icp->icp_cdr[unit].cd_type = newtype; 508 if (icp->icp_children[unit] != NULL) 509 (void) config_detach(icp->icp_children[unit], 510 DETACH_FORCE); 511 512 icpa.icpa_unit = unit; 513 514 locs[ICPCF_UNIT] = unit; 515 516 icp->icp_children[unit] = config_found_sm_loc(&icp->icp_dv, 517 "icp", locs, &icpa, icp_print, config_stdsubmatch); 518 } 519 520 icp_recompute_openings(icp); 521 } 522 523 void 524 icp_rescan_all(struct icp_softc *icp) 525 { 526 int unit; 527 u_int16_t cdev_cnt; 528 529 /* 530 * This is the old method of rescanning the host drives. We 531 * start by reinitializing the cache service. 532 */ 533 if (!icp_cmd(icp, ICP_CACHESERVICE, ICP_INIT, ICP_LINUX_OS, 0, 0)) { 534 printf("%s: unable to re-initialize cache service for rescan\n", 535 device_xname(&icp->icp_dv)); 536 return; 537 } 538 cdev_cnt = (u_int16_t) icp->icp_info; 539 540 /* For each host drive, do the new-style rescan. */ 541 for (unit = 0; unit < cdev_cnt && unit < ICP_MAX_HDRIVES; unit++) 542 icp_rescan(icp, unit); 543 544 /* Now detach anything in the slots after cdev_cnt. */ 545 for (; unit < ICP_MAX_HDRIVES; unit++) { 546 if (icp->icp_cdr[unit].cd_size != 0) { 547 #ifdef ICP_DEBUG 548 printf("%s: rescan all: unit %d < new cdev_cnt (%d)\n", 549 device_xname(&icp->icp_dv), unit, cdev_cnt); 550 #endif 551 icp->icp_ndevs--; 552 icp->icp_cdr[unit].cd_size = 0; 553 if (icp->icp_children[unit] != NULL) { 554 (void) config_detach(icp->icp_children[unit], 555 DETACH_FORCE); 556 icp->icp_children[unit] = NULL; 557 } 558 } 559 } 560 561 icp_recompute_openings(icp); 562 } 563 564 void 565 icp_recompute_openings(struct icp_softc *icp) 566 { 567 int unit, openings; 568 569 if (icp->icp_ndevs != 0) 570 openings = 571 (icp->icp_nccbs - ICP_NCCB_RESERVE) / icp->icp_ndevs; 572 else 573 openings = 0; 574 if (openings == icp->icp_openings) 575 return; 576 icp->icp_openings = openings; 577 578 #ifdef ICP_DEBUG 579 printf("%s: %d device%s, %d openings per device\n", 580 device_xname(&icp->icp_dv), icp->icp_ndevs, 581 icp->icp_ndevs == 1 ? "" : "s", icp->icp_openings); 582 #endif 583 584 for (unit = 0; unit < ICP_MAX_HDRIVES + ICP_MAXBUS; unit++) { 585 if (icp->icp_children[unit] != NULL) 586 (*icp->icp_servicecb[unit]->iscb_openings)( 587 icp->icp_children[unit], icp->icp_openings); 588 } 589 } 590 591 void 592 icp_watchdog(void *cookie) 593 { 594 struct icp_softc *icp; 595 int s; 596 597 icp = cookie; 598 599 s = splbio(); 600 icp_intr(icp); 601 if (ICP_HAS_WORK(icp)) 602 icp_ccb_enqueue(icp, NULL); 603 splx(s); 604 605 callout_reset(&icp->icp_wdog_callout, hz * ICP_WATCHDOG_FREQ, 606 icp_watchdog, icp); 607 } 608 609 int 610 icp_print(void *aux, const char *pnp) 611 { 612 struct icp_attach_args *icpa; 613 const char *str; 614 615 icpa = (struct icp_attach_args *)aux; 616 617 if (pnp != NULL) { 618 if (icpa->icpa_unit < ICPA_UNIT_SCSI) 619 str = "block device"; 620 else 621 str = "SCSI channel"; 622 aprint_normal("%s at %s", str, pnp); 623 } 624 aprint_normal(" unit %d", icpa->icpa_unit); 625 626 return (UNCONF); 627 } 628 629 int 630 icp_async_event(struct icp_softc *icp, int service) 631 { 632 633 if (service == ICP_SCREENSERVICE) { 634 if (icp->icp_status == ICP_S_MSG_REQUEST) { 635 /* XXX */ 636 } 637 } else { 638 if ((icp->icp_fw_vers & 0xff) >= 0x1a) { 639 icp->icp_evt.size = 0; 640 icp->icp_evt.eu.async.ionode = 641 device_unit(&icp->icp_dv); 642 icp->icp_evt.eu.async.status = icp->icp_status; 643 /* 644 * Severity and event string are filled in by the 645 * hardware interface interrupt handler. 646 */ 647 printf("%s: %s\n", device_xname(&icp->icp_dv), 648 icp->icp_evt.event_string); 649 } else { 650 icp->icp_evt.size = sizeof(icp->icp_evt.eu.async); 651 icp->icp_evt.eu.async.ionode = 652 device_unit(&icp->icp_dv); 653 icp->icp_evt.eu.async.service = service; 654 icp->icp_evt.eu.async.status = icp->icp_status; 655 icp->icp_evt.eu.async.info = icp->icp_info; 656 /* XXXJRT FIX THIS */ 657 *(u_int32_t *) icp->icp_evt.eu.async.scsi_coord = 658 icp->icp_info2; 659 } 660 icp_store_event(icp, GDT_ES_ASYNC, service, &icp->icp_evt); 661 } 662 663 return (0); 664 } 665 666 int 667 icp_intr(void *cookie) 668 { 669 struct icp_softc *icp; 670 struct icp_intr_ctx ctx; 671 struct icp_ccb *ic; 672 673 icp = cookie; 674 675 ctx.istatus = (*icp->icp_get_status)(icp); 676 if (!ctx.istatus) { 677 icp->icp_status = ICP_S_NO_STATUS; 678 return (0); 679 } 680 681 (*icp->icp_intr)(icp, &ctx); 682 683 icp->icp_status = ctx.cmd_status; 684 icp->icp_service = ctx.service; 685 icp->icp_info = ctx.info; 686 icp->icp_info2 = ctx.info2; 687 688 switch (ctx.istatus) { 689 case ICP_ASYNCINDEX: 690 icp_async_event(icp, ctx.service); 691 return (1); 692 693 case ICP_SPEZINDEX: 694 aprint_error_dev(&icp->icp_dv, "uninitialized or unknown service (%d/%d)\n", 695 ctx.info, ctx.info2); 696 icp->icp_evt.size = sizeof(icp->icp_evt.eu.driver); 697 icp->icp_evt.eu.driver.ionode = device_unit(&icp->icp_dv); 698 icp_store_event(icp, GDT_ES_DRIVER, 4, &icp->icp_evt); 699 return (1); 700 } 701 702 if ((ctx.istatus - 2) > icp->icp_nccbs) 703 panic("icp_intr: bad command index returned"); 704 705 ic = &icp->icp_ccbs[ctx.istatus - 2]; 706 ic->ic_status = icp->icp_status; 707 708 if ((ic->ic_flags & IC_ALLOCED) == 0) { 709 /* XXX ICP's "iir" driver just sends an event here. */ 710 panic("icp_intr: inactive CCB identified"); 711 } 712 713 /* 714 * Try to protect ourselves from the running command count already 715 * being 0 (e.g. if a polled command times out). 716 */ 717 KDASSERT(icp->icp_running != 0); 718 if (--icp->icp_running == 0 && 719 (icp->icp_flags & ICP_F_WAIT_FREEZE) != 0) { 720 icp->icp_flags &= ~ICP_F_WAIT_FREEZE; 721 wakeup(&icp->icp_qfreeze); 722 } 723 724 switch (icp->icp_status) { 725 case ICP_S_BSY: 726 #ifdef ICP_DEBUG 727 printf("%s: ICP_S_BSY received\n", device_xname(&icp->icp_dv)); 728 #endif 729 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 730 SIMPLEQ_INSERT_HEAD(&icp->icp_ucmd_queue, ic, ic_chain); 731 else 732 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_queue, ic, ic_chain); 733 break; 734 735 default: 736 ic->ic_flags |= IC_COMPLETE; 737 738 if ((ic->ic_flags & IC_WAITING) != 0) 739 wakeup(ic); 740 else if (ic->ic_intr != NULL) 741 (*ic->ic_intr)(ic); 742 743 if (ICP_HAS_WORK(icp)) 744 icp_ccb_enqueue(icp, NULL); 745 746 break; 747 } 748 749 return (1); 750 } 751 752 struct icp_ucmd_ctx { 753 gdt_ucmd_t *iu_ucmd; 754 u_int32_t iu_cnt; 755 }; 756 757 void 758 icp_ucmd_intr(struct icp_ccb *ic) 759 { 760 struct icp_softc *icp = (void *) ic->ic_dv; 761 struct icp_ucmd_ctx *iu = ic->ic_context; 762 gdt_ucmd_t *ucmd = iu->iu_ucmd; 763 764 ucmd->status = icp->icp_status; 765 ucmd->info = icp->icp_info; 766 767 if (iu->iu_cnt != 0) { 768 bus_dmamap_sync(icp->icp_dmat, 769 icp->icp_scr_dmamap, 770 ICP_SCRATCH_UCMD, iu->iu_cnt, 771 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 772 memcpy(ucmd->data, 773 (char *)icp->icp_scr + ICP_SCRATCH_UCMD, iu->iu_cnt); 774 } 775 776 icp->icp_ucmd_ccb = NULL; 777 778 ic->ic_flags |= IC_COMPLETE; 779 wakeup(ic); 780 } 781 782 /* 783 * NOTE: We assume that it is safe to sleep here! 784 */ 785 int 786 icp_cmd(struct icp_softc *icp, u_int8_t service, u_int16_t opcode, 787 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 788 { 789 struct icp_ioctlcmd *icmd; 790 struct icp_cachecmd *cc; 791 struct icp_rawcmd *rc; 792 int retries, rv; 793 struct icp_ccb *ic; 794 795 retries = ICP_RETRIES; 796 797 do { 798 ic = icp_ccb_alloc_wait(icp); 799 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 800 ic->ic_cmd.cmd_opcode = htole16(opcode); 801 802 switch (service) { 803 case ICP_CACHESERVICE: 804 if (opcode == ICP_IOCTL) { 805 icmd = &ic->ic_cmd.cmd_packet.ic; 806 icmd->ic_subfunc = htole16(arg1); 807 icmd->ic_channel = htole32(arg2); 808 icmd->ic_bufsize = htole32(arg3); 809 icmd->ic_addr = 810 htole32(icp->icp_scr_seg[0].ds_addr); 811 812 bus_dmamap_sync(icp->icp_dmat, 813 icp->icp_scr_dmamap, 0, arg3, 814 BUS_DMASYNC_PREWRITE | 815 BUS_DMASYNC_PREREAD); 816 } else { 817 cc = &ic->ic_cmd.cmd_packet.cc; 818 cc->cc_deviceno = htole16(arg1); 819 cc->cc_blockno = htole32(arg2); 820 } 821 break; 822 823 case ICP_SCSIRAWSERVICE: 824 rc = &ic->ic_cmd.cmd_packet.rc; 825 rc->rc_direction = htole32(arg1); 826 rc->rc_bus = arg2; 827 rc->rc_target = arg3; 828 rc->rc_lun = arg3 >> 8; 829 break; 830 } 831 832 ic->ic_service = service; 833 ic->ic_cmdlen = sizeof(ic->ic_cmd); 834 rv = icp_ccb_poll(icp, ic, 10000); 835 836 switch (service) { 837 case ICP_CACHESERVICE: 838 if (opcode == ICP_IOCTL) { 839 bus_dmamap_sync(icp->icp_dmat, 840 icp->icp_scr_dmamap, 0, arg3, 841 BUS_DMASYNC_POSTWRITE | 842 BUS_DMASYNC_POSTREAD); 843 } 844 break; 845 } 846 847 icp_ccb_free(icp, ic); 848 } while (rv != 0 && --retries > 0); 849 850 return (icp->icp_status == ICP_S_OK); 851 } 852 853 int 854 icp_ucmd(struct icp_softc *icp, gdt_ucmd_t *ucmd) 855 { 856 struct icp_ccb *ic; 857 struct icp_ucmd_ctx iu; 858 u_int32_t cnt; 859 int error; 860 861 if (ucmd->service == ICP_CACHESERVICE) { 862 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 863 cnt = ucmd->command.cmd_packet.ic.ic_bufsize; 864 if (cnt > GDT_SCRATCH_SZ) { 865 aprint_error_dev(&icp->icp_dv, "scratch buffer too small (%d/%d)\n", 866 GDT_SCRATCH_SZ, cnt); 867 return (EINVAL); 868 } 869 } else { 870 cnt = ucmd->command.cmd_packet.cc.cc_blockcnt * 871 ICP_SECTOR_SIZE; 872 if (cnt > GDT_SCRATCH_SZ) { 873 aprint_error_dev(&icp->icp_dv, "scratch buffer too small (%d/%d)\n", 874 GDT_SCRATCH_SZ, cnt); 875 return (EINVAL); 876 } 877 } 878 } else { 879 cnt = ucmd->command.cmd_packet.rc.rc_sdlen + 880 ucmd->command.cmd_packet.rc.rc_sense_len; 881 if (cnt > GDT_SCRATCH_SZ) { 882 aprint_error_dev(&icp->icp_dv, "scratch buffer too small (%d/%d)\n", 883 GDT_SCRATCH_SZ, cnt); 884 return (EINVAL); 885 } 886 } 887 888 iu.iu_ucmd = ucmd; 889 iu.iu_cnt = cnt; 890 891 ic = icp_ccb_alloc_wait(icp); 892 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 893 ic->ic_cmd.cmd_opcode = htole16(ucmd->command.cmd_opcode); 894 895 if (ucmd->service == ICP_CACHESERVICE) { 896 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 897 struct icp_ioctlcmd *icmd, *uicmd; 898 899 icmd = &ic->ic_cmd.cmd_packet.ic; 900 uicmd = &ucmd->command.cmd_packet.ic; 901 902 icmd->ic_subfunc = htole16(uicmd->ic_subfunc); 903 icmd->ic_channel = htole32(uicmd->ic_channel); 904 icmd->ic_bufsize = htole32(uicmd->ic_bufsize); 905 icmd->ic_addr = 906 htole32(icp->icp_scr_seg[0].ds_addr + 907 ICP_SCRATCH_UCMD); 908 } else { 909 struct icp_cachecmd *cc, *ucc; 910 911 cc = &ic->ic_cmd.cmd_packet.cc; 912 ucc = &ucmd->command.cmd_packet.cc; 913 914 cc->cc_deviceno = htole16(ucc->cc_deviceno); 915 cc->cc_blockno = htole32(ucc->cc_blockno); 916 cc->cc_blockcnt = htole32(ucc->cc_blockcnt); 917 cc->cc_addr = htole32(0xffffffffU); 918 cc->cc_nsgent = htole32(1); 919 cc->cc_sg[0].sg_addr = 920 htole32(icp->icp_scr_seg[0].ds_addr + 921 ICP_SCRATCH_UCMD); 922 cc->cc_sg[0].sg_len = htole32(cnt); 923 } 924 } else { 925 struct icp_rawcmd *rc, *urc; 926 927 rc = &ic->ic_cmd.cmd_packet.rc; 928 urc = &ucmd->command.cmd_packet.rc; 929 930 rc->rc_direction = htole32(urc->rc_direction); 931 rc->rc_sdata = htole32(0xffffffffU); 932 rc->rc_sdlen = htole32(urc->rc_sdlen); 933 rc->rc_clen = htole32(urc->rc_clen); 934 memcpy(rc->rc_cdb, urc->rc_cdb, sizeof(rc->rc_cdb)); 935 rc->rc_target = urc->rc_target; 936 rc->rc_lun = urc->rc_lun; 937 rc->rc_bus = urc->rc_bus; 938 rc->rc_sense_len = htole32(urc->rc_sense_len); 939 rc->rc_sense_addr = 940 htole32(icp->icp_scr_seg[0].ds_addr + 941 ICP_SCRATCH_UCMD + urc->rc_sdlen); 942 rc->rc_nsgent = htole32(1); 943 rc->rc_sg[0].sg_addr = 944 htole32(icp->icp_scr_seg[0].ds_addr + ICP_SCRATCH_UCMD); 945 rc->rc_sg[0].sg_len = htole32(cnt - urc->rc_sense_len); 946 } 947 948 ic->ic_service = ucmd->service; 949 ic->ic_cmdlen = sizeof(ic->ic_cmd); 950 ic->ic_context = &iu; 951 952 /* 953 * XXX What units are ucmd->timeout in? Until we know, we 954 * XXX just pull a number out of thin air. 955 */ 956 if (__predict_false((error = icp_ccb_wait_user(icp, ic, 30000)) != 0)) 957 aprint_error_dev(&icp->icp_dv, "error %d waiting for ucmd to complete\n", 958 error); 959 960 /* icp_ucmd_intr() has updated ucmd. */ 961 icp_ccb_free(icp, ic); 962 963 return (error); 964 } 965 966 struct icp_ccb * 967 icp_ccb_alloc(struct icp_softc *icp) 968 { 969 struct icp_ccb *ic; 970 int s; 971 972 s = splbio(); 973 if (__predict_false((ic = 974 SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL)) { 975 splx(s); 976 return (NULL); 977 } 978 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 979 splx(s); 980 981 ic->ic_flags = IC_ALLOCED; 982 return (ic); 983 } 984 985 struct icp_ccb * 986 icp_ccb_alloc_wait(struct icp_softc *icp) 987 { 988 struct icp_ccb *ic; 989 int s; 990 991 s = splbio(); 992 while ((ic = SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL) { 993 icp->icp_flags |= ICP_F_WAIT_CCB; 994 (void) tsleep(&icp->icp_ccb_freelist, PRIBIO, "icpccb", 0); 995 } 996 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 997 splx(s); 998 999 ic->ic_flags = IC_ALLOCED; 1000 return (ic); 1001 } 1002 1003 void 1004 icp_ccb_free(struct icp_softc *icp, struct icp_ccb *ic) 1005 { 1006 int s; 1007 1008 s = splbio(); 1009 ic->ic_flags = 0; 1010 ic->ic_intr = NULL; 1011 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); 1012 if (__predict_false((icp->icp_flags & ICP_F_WAIT_CCB) != 0)) { 1013 icp->icp_flags &= ~ICP_F_WAIT_CCB; 1014 wakeup(&icp->icp_ccb_freelist); 1015 } 1016 splx(s); 1017 } 1018 1019 void 1020 icp_ccb_enqueue(struct icp_softc *icp, struct icp_ccb *ic) 1021 { 1022 int s; 1023 1024 s = splbio(); 1025 1026 if (ic != NULL) { 1027 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1028 SIMPLEQ_INSERT_TAIL(&icp->icp_ucmd_queue, ic, ic_chain); 1029 else 1030 SIMPLEQ_INSERT_TAIL(&icp->icp_ccb_queue, ic, ic_chain); 1031 } 1032 1033 for (; icp->icp_qfreeze == 0;) { 1034 if (__predict_false((ic = 1035 SIMPLEQ_FIRST(&icp->icp_ucmd_queue)) != NULL)) { 1036 struct icp_ucmd_ctx *iu = ic->ic_context; 1037 gdt_ucmd_t *ucmd = iu->iu_ucmd; 1038 1039 /* 1040 * All user-generated commands share the same 1041 * scratch space, so if one is already running, 1042 * we have to stall the command queue. 1043 */ 1044 if (icp->icp_ucmd_ccb != NULL) 1045 break; 1046 if ((*icp->icp_test_busy)(icp)) 1047 break; 1048 icp->icp_ucmd_ccb = ic; 1049 1050 if (iu->iu_cnt != 0) { 1051 memcpy((char *)icp->icp_scr + ICP_SCRATCH_UCMD, 1052 ucmd->data, iu->iu_cnt); 1053 bus_dmamap_sync(icp->icp_dmat, 1054 icp->icp_scr_dmamap, 1055 ICP_SCRATCH_UCMD, iu->iu_cnt, 1056 BUS_DMASYNC_PREREAD | 1057 BUS_DMASYNC_PREWRITE); 1058 } 1059 } else if (__predict_true((ic = 1060 SIMPLEQ_FIRST(&icp->icp_ccb_queue)) != NULL)) { 1061 if ((*icp->icp_test_busy)(icp)) 1062 break; 1063 } else { 1064 /* no command found */ 1065 break; 1066 } 1067 icp_ccb_submit(icp, ic); 1068 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1069 SIMPLEQ_REMOVE_HEAD(&icp->icp_ucmd_queue, ic_chain); 1070 else 1071 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_queue, ic_chain); 1072 } 1073 1074 splx(s); 1075 } 1076 1077 int 1078 icp_ccb_map(struct icp_softc *icp, struct icp_ccb *ic, void *data, int size, 1079 int dir) 1080 { 1081 struct icp_sg *sg; 1082 int nsegs, i, rv; 1083 bus_dmamap_t xfer; 1084 1085 xfer = ic->ic_xfer_map; 1086 1087 rv = bus_dmamap_load(icp->icp_dmat, xfer, data, size, NULL, 1088 BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1089 ((dir & IC_XFER_IN) ? BUS_DMA_READ : BUS_DMA_WRITE)); 1090 if (rv != 0) 1091 return (rv); 1092 1093 nsegs = xfer->dm_nsegs; 1094 ic->ic_xfer_size = size; 1095 ic->ic_nsgent = nsegs; 1096 ic->ic_flags |= dir; 1097 sg = ic->ic_sg; 1098 1099 if (sg != NULL) { 1100 for (i = 0; i < nsegs; i++, sg++) { 1101 sg->sg_addr = htole32(xfer->dm_segs[i].ds_addr); 1102 sg->sg_len = htole32(xfer->dm_segs[i].ds_len); 1103 } 1104 } else if (nsegs > 1) 1105 panic("icp_ccb_map: no SG list specified, but nsegs > 1"); 1106 1107 if ((dir & IC_XFER_OUT) != 0) 1108 i = BUS_DMASYNC_PREWRITE; 1109 else /* if ((dir & IC_XFER_IN) != 0) */ 1110 i = BUS_DMASYNC_PREREAD; 1111 1112 bus_dmamap_sync(icp->icp_dmat, xfer, 0, ic->ic_xfer_size, i); 1113 return (0); 1114 } 1115 1116 void 1117 icp_ccb_unmap(struct icp_softc *icp, struct icp_ccb *ic) 1118 { 1119 int i; 1120 1121 if ((ic->ic_flags & IC_XFER_OUT) != 0) 1122 i = BUS_DMASYNC_POSTWRITE; 1123 else /* if ((ic->ic_flags & IC_XFER_IN) != 0) */ 1124 i = BUS_DMASYNC_POSTREAD; 1125 1126 bus_dmamap_sync(icp->icp_dmat, ic->ic_xfer_map, 0, ic->ic_xfer_size, i); 1127 bus_dmamap_unload(icp->icp_dmat, ic->ic_xfer_map); 1128 } 1129 1130 int 1131 icp_ccb_poll(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1132 { 1133 int s, rv; 1134 1135 s = splbio(); 1136 1137 for (timo = ICP_BUSY_WAIT_MS * 100; timo != 0; timo--) { 1138 if (!(*icp->icp_test_busy)(icp)) 1139 break; 1140 DELAY(10); 1141 } 1142 if (timo == 0) { 1143 printf("%s: submit: busy\n", device_xname(&icp->icp_dv)); 1144 return (EAGAIN); 1145 } 1146 1147 icp_ccb_submit(icp, ic); 1148 1149 if (cold) { 1150 for (timo *= 10; timo != 0; timo--) { 1151 DELAY(100); 1152 icp_intr(icp); 1153 if ((ic->ic_flags & IC_COMPLETE) != 0) 1154 break; 1155 } 1156 } else { 1157 ic->ic_flags |= IC_WAITING; 1158 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1159 if ((rv = tsleep(ic, PRIBIO, "icpwccb", 1160 mstohz(timo))) != 0) { 1161 timo = 0; 1162 break; 1163 } 1164 } 1165 } 1166 1167 if (timo != 0) { 1168 if (ic->ic_status != ICP_S_OK) { 1169 #ifdef ICP_DEBUG 1170 printf("%s: request failed; status=0x%04x\n", 1171 device_xname(&icp->icp_dv), ic->ic_status); 1172 #endif 1173 rv = EIO; 1174 } else 1175 rv = 0; 1176 } else { 1177 aprint_error_dev(&icp->icp_dv, "command timed out\n"); 1178 rv = EIO; 1179 } 1180 1181 while ((*icp->icp_test_busy)(icp) != 0) 1182 DELAY(10); 1183 1184 splx(s); 1185 1186 return (rv); 1187 } 1188 1189 int 1190 icp_ccb_wait(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1191 { 1192 int s, rv; 1193 1194 ic->ic_flags |= IC_WAITING; 1195 1196 s = splbio(); 1197 icp_ccb_enqueue(icp, ic); 1198 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1199 if ((rv = tsleep(ic, PRIBIO, "icpwccb", mstohz(timo))) != 0) { 1200 splx(s); 1201 return (rv); 1202 } 1203 } 1204 splx(s); 1205 1206 if (ic->ic_status != ICP_S_OK) { 1207 aprint_error_dev(&icp->icp_dv, "command failed; status=%x\n", 1208 ic->ic_status); 1209 return (EIO); 1210 } 1211 1212 return (0); 1213 } 1214 1215 int 1216 icp_ccb_wait_user(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1217 { 1218 int s, rv; 1219 1220 ic->ic_dv = &icp->icp_dv; 1221 ic->ic_intr = icp_ucmd_intr; 1222 ic->ic_flags |= IC_UCMD; 1223 1224 s = splbio(); 1225 icp_ccb_enqueue(icp, ic); 1226 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1227 if ((rv = tsleep(ic, PRIBIO, "icpwuccb", mstohz(timo))) != 0) { 1228 splx(s); 1229 return (rv); 1230 } 1231 } 1232 splx(s); 1233 1234 return (0); 1235 } 1236 1237 void 1238 icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic) 1239 { 1240 1241 ic->ic_cmdlen = (ic->ic_cmdlen + 3) & ~3; 1242 1243 (*icp->icp_set_sema0)(icp); 1244 DELAY(10); 1245 1246 ic->ic_cmd.cmd_boardnode = htole32(ICP_LOCALBOARD); 1247 ic->ic_cmd.cmd_cmdindex = htole32(ic->ic_ident); 1248 1249 icp->icp_running++; 1250 1251 (*icp->icp_copy_cmd)(icp, ic); 1252 (*icp->icp_release_event)(icp, ic); 1253 } 1254 1255 int 1256 icp_freeze(struct icp_softc *icp) 1257 { 1258 int s, error = 0; 1259 1260 s = splbio(); 1261 if (icp->icp_qfreeze++ == 0) { 1262 while (icp->icp_running != 0) { 1263 icp->icp_flags |= ICP_F_WAIT_FREEZE; 1264 error = tsleep(&icp->icp_qfreeze, PRIBIO|PCATCH, 1265 "icpqfrz", 0); 1266 if (error != 0 && --icp->icp_qfreeze == 0 && 1267 ICP_HAS_WORK(icp)) { 1268 icp_ccb_enqueue(icp, NULL); 1269 break; 1270 } 1271 } 1272 } 1273 splx(s); 1274 1275 return (error); 1276 } 1277 1278 void 1279 icp_unfreeze(struct icp_softc *icp) 1280 { 1281 int s; 1282 1283 s = splbio(); 1284 KDASSERT(icp->icp_qfreeze != 0); 1285 if (--icp->icp_qfreeze == 0 && ICP_HAS_WORK(icp)) 1286 icp_ccb_enqueue(icp, NULL); 1287 splx(s); 1288 } 1289 1290 /* XXX Global - should be per-controller? XXX */ 1291 static gdt_evt_str icp_event_buffer[ICP_MAX_EVENTS]; 1292 static int icp_event_oldidx; 1293 static int icp_event_lastidx; 1294 1295 gdt_evt_str * 1296 icp_store_event(struct icp_softc *icp, u_int16_t source, u_int16_t idx, 1297 gdt_evt_data *evt) 1298 { 1299 gdt_evt_str *e; 1300 1301 /* no source == no event */ 1302 if (source == 0) 1303 return (NULL); 1304 1305 e = &icp_event_buffer[icp_event_lastidx]; 1306 if (e->event_source == source && e->event_idx == idx && 1307 ((evt->size != 0 && e->event_data.size != 0 && 1308 memcmp(&e->event_data.eu, &evt->eu, evt->size) == 0) || 1309 (evt->size == 0 && e->event_data.size == 0 && 1310 strcmp((char *) e->event_data.event_string, 1311 (char *) evt->event_string) == 0))) { 1312 e->last_stamp = time_second; 1313 e->same_count++; 1314 } else { 1315 if (icp_event_buffer[icp_event_lastidx].event_source != 0) { 1316 icp_event_lastidx++; 1317 if (icp_event_lastidx == ICP_MAX_EVENTS) 1318 icp_event_lastidx = 0; 1319 if (icp_event_lastidx == icp_event_oldidx) { 1320 icp_event_oldidx++; 1321 if (icp_event_oldidx == ICP_MAX_EVENTS) 1322 icp_event_oldidx = 0; 1323 } 1324 } 1325 e = &icp_event_buffer[icp_event_lastidx]; 1326 e->event_source = source; 1327 e->event_idx = idx; 1328 e->first_stamp = e->last_stamp = time_second; 1329 e->same_count = 1; 1330 e->event_data = *evt; 1331 e->application = 0; 1332 } 1333 return (e); 1334 } 1335 1336 int 1337 icp_read_event(struct icp_softc *icp, int handle, gdt_evt_str *estr) 1338 { 1339 gdt_evt_str *e; 1340 int eindex, s; 1341 1342 s = splbio(); 1343 1344 if (handle == -1) 1345 eindex = icp_event_oldidx; 1346 else 1347 eindex = handle; 1348 1349 estr->event_source = 0; 1350 1351 if (eindex < 0 || eindex >= ICP_MAX_EVENTS) { 1352 splx(s); 1353 return (eindex); 1354 } 1355 1356 e = &icp_event_buffer[eindex]; 1357 if (e->event_source != 0) { 1358 if (eindex != icp_event_lastidx) { 1359 eindex++; 1360 if (eindex == ICP_MAX_EVENTS) 1361 eindex = 0; 1362 } else 1363 eindex = -1; 1364 memcpy(estr, e, sizeof(gdt_evt_str)); 1365 } 1366 1367 splx(s); 1368 1369 return (eindex); 1370 } 1371 1372 void 1373 icp_readapp_event(struct icp_softc *icp, u_int8_t application, 1374 gdt_evt_str *estr) 1375 { 1376 gdt_evt_str *e; 1377 int found = 0, eindex, s; 1378 1379 s = splbio(); 1380 1381 eindex = icp_event_oldidx; 1382 for (;;) { 1383 e = &icp_event_buffer[eindex]; 1384 if (e->event_source == 0) 1385 break; 1386 if ((e->application & application) == 0) { 1387 e->application |= application; 1388 found = 1; 1389 break; 1390 } 1391 if (eindex == icp_event_lastidx) 1392 break; 1393 eindex++; 1394 if (eindex == ICP_MAX_EVENTS) 1395 eindex = 0; 1396 } 1397 if (found) 1398 memcpy(estr, e, sizeof(gdt_evt_str)); 1399 else 1400 estr->event_source = 0; 1401 1402 splx(s); 1403 } 1404 1405 void 1406 icp_clear_events(struct icp_softc *icp) 1407 { 1408 int s; 1409 1410 s = splbio(); 1411 icp_event_oldidx = icp_event_lastidx = 0; 1412 memset(icp_event_buffer, 0, sizeof(icp_event_buffer)); 1413 splx(s); 1414 } 1415
Indexes created Wed Oct 22 13:09:56 GMT 2025