icp.c revision 1.18
1 /* $NetBSD: icp.c,v 1.18 2006/01/29 21:42:42 dsl 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 ko.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 (at) 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 1.18 2006/01/29 21:42:42 dsl 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 = icp->icp_dv.dv_unit; 655 icp->icp_evt.eu.async.status = icp->icp_status; 656 /* 657 * Severity and event string are filled in by the 658 * hardware interface interrupt handler. 659 */ 660 printf("%s: %s\n", icp->icp_dv.dv_xname, 661 icp->icp_evt.event_string); 662 } else { 663 icp->icp_evt.size = sizeof(icp->icp_evt.eu.async); 664 icp->icp_evt.eu.async.ionode = icp->icp_dv.dv_unit; 665 icp->icp_evt.eu.async.service = service; 666 icp->icp_evt.eu.async.status = icp->icp_status; 667 icp->icp_evt.eu.async.info = icp->icp_info; 668 /* XXXJRT FIX THIS */ 669 *(u_int32_t *) icp->icp_evt.eu.async.scsi_coord = 670 icp->icp_info2; 671 } 672 icp_store_event(icp, GDT_ES_ASYNC, service, &icp->icp_evt); 673 } 674 675 return (0); 676 } 677 678 int 679 icp_intr(void *cookie) 680 { 681 struct icp_softc *icp; 682 struct icp_intr_ctx ctx; 683 struct icp_ccb *ic; 684 685 icp = cookie; 686 687 ctx.istatus = (*icp->icp_get_status)(icp); 688 if (!ctx.istatus) { 689 icp->icp_status = ICP_S_NO_STATUS; 690 return (0); 691 } 692 693 (*icp->icp_intr)(icp, &ctx); 694 695 icp->icp_status = ctx.cmd_status; 696 icp->icp_service = ctx.service; 697 icp->icp_info = ctx.info; 698 icp->icp_info2 = ctx.info2; 699 700 switch (ctx.istatus) { 701 case ICP_ASYNCINDEX: 702 icp_async_event(icp, ctx.service); 703 return (1); 704 705 case ICP_SPEZINDEX: 706 printf("%s: uninitialized or unknown service (%d/%d)\n", 707 icp->icp_dv.dv_xname, ctx.info, ctx.info2); 708 icp->icp_evt.size = sizeof(icp->icp_evt.eu.driver); 709 icp->icp_evt.eu.driver.ionode = icp->icp_dv.dv_unit; 710 icp_store_event(icp, GDT_ES_DRIVER, 4, &icp->icp_evt); 711 return (1); 712 } 713 714 if ((ctx.istatus - 2) > icp->icp_nccbs) 715 panic("icp_intr: bad command index returned"); 716 717 ic = &icp->icp_ccbs[ctx.istatus - 2]; 718 ic->ic_status = icp->icp_status; 719 720 if ((ic->ic_flags & IC_ALLOCED) == 0) { 721 /* XXX ICP's "iir" driver just sends an event here. */ 722 panic("icp_intr: inactive CCB identified"); 723 } 724 725 /* 726 * Try to protect ourselves from the running command count already 727 * being 0 (e.g. if a polled command times out). 728 */ 729 KDASSERT(icp->icp_running != 0); 730 if (--icp->icp_running == 0 && 731 (icp->icp_flags & ICP_F_WAIT_FREEZE) != 0) { 732 icp->icp_flags &= ~ICP_F_WAIT_FREEZE; 733 wakeup(&icp->icp_qfreeze); 734 } 735 736 switch (icp->icp_status) { 737 case ICP_S_BSY: 738 #ifdef ICP_DEBUG 739 printf("%s: ICP_S_BSY received\n", icp->icp_dv.dv_xname); 740 #endif 741 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 742 SIMPLEQ_INSERT_HEAD(&icp->icp_ucmd_queue, ic, ic_chain); 743 else 744 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_queue, ic, ic_chain); 745 break; 746 747 default: 748 ic->ic_flags |= IC_COMPLETE; 749 750 if ((ic->ic_flags & IC_WAITING) != 0) 751 wakeup(ic); 752 else if (ic->ic_intr != NULL) 753 (*ic->ic_intr)(ic); 754 755 if (ICP_HAS_WORK(icp)) 756 icp_ccb_enqueue(icp, NULL); 757 758 break; 759 } 760 761 return (1); 762 } 763 764 struct icp_ucmd_ctx { 765 gdt_ucmd_t *iu_ucmd; 766 u_int32_t iu_cnt; 767 }; 768 769 void 770 icp_ucmd_intr(struct icp_ccb *ic) 771 { 772 struct icp_softc *icp = (void *) ic->ic_dv; 773 struct icp_ucmd_ctx *iu = ic->ic_context; 774 gdt_ucmd_t *ucmd = iu->iu_ucmd; 775 776 ucmd->status = icp->icp_status; 777 ucmd->info = icp->icp_info; 778 779 if (iu->iu_cnt != 0) { 780 bus_dmamap_sync(icp->icp_dmat, 781 icp->icp_scr_dmamap, 782 ICP_SCRATCH_UCMD, iu->iu_cnt, 783 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 784 memcpy(ucmd->data, 785 icp->icp_scr + ICP_SCRATCH_UCMD, iu->iu_cnt); 786 } 787 788 icp->icp_ucmd_ccb = NULL; 789 790 ic->ic_flags |= IC_COMPLETE; 791 wakeup(ic); 792 } 793 794 /* 795 * NOTE: We assume that it is safe to sleep here! 796 */ 797 int 798 icp_cmd(struct icp_softc *icp, u_int8_t service, u_int16_t opcode, 799 u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 800 { 801 struct icp_ioctlcmd *icmd; 802 struct icp_cachecmd *cc; 803 struct icp_rawcmd *rc; 804 int retries, rv; 805 struct icp_ccb *ic; 806 807 retries = ICP_RETRIES; 808 809 do { 810 ic = icp_ccb_alloc_wait(icp); 811 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 812 ic->ic_cmd.cmd_opcode = htole16(opcode); 813 814 switch (service) { 815 case ICP_CACHESERVICE: 816 if (opcode == ICP_IOCTL) { 817 icmd = &ic->ic_cmd.cmd_packet.ic; 818 icmd->ic_subfunc = htole16(arg1); 819 icmd->ic_channel = htole32(arg2); 820 icmd->ic_bufsize = htole32(arg3); 821 icmd->ic_addr = 822 htole32(icp->icp_scr_seg[0].ds_addr); 823 824 bus_dmamap_sync(icp->icp_dmat, 825 icp->icp_scr_dmamap, 0, arg3, 826 BUS_DMASYNC_PREWRITE | 827 BUS_DMASYNC_PREREAD); 828 } else { 829 cc = &ic->ic_cmd.cmd_packet.cc; 830 cc->cc_deviceno = htole16(arg1); 831 cc->cc_blockno = htole32(arg2); 832 } 833 break; 834 835 case ICP_SCSIRAWSERVICE: 836 rc = &ic->ic_cmd.cmd_packet.rc; 837 rc->rc_direction = htole32(arg1); 838 rc->rc_bus = arg2; 839 rc->rc_target = arg3; 840 rc->rc_lun = arg3 >> 8; 841 break; 842 } 843 844 ic->ic_service = service; 845 ic->ic_cmdlen = sizeof(ic->ic_cmd); 846 rv = icp_ccb_poll(icp, ic, 10000); 847 848 switch (service) { 849 case ICP_CACHESERVICE: 850 if (opcode == ICP_IOCTL) { 851 bus_dmamap_sync(icp->icp_dmat, 852 icp->icp_scr_dmamap, 0, arg3, 853 BUS_DMASYNC_POSTWRITE | 854 BUS_DMASYNC_POSTREAD); 855 } 856 break; 857 } 858 859 icp_ccb_free(icp, ic); 860 } while (rv != 0 && --retries > 0); 861 862 return (icp->icp_status == ICP_S_OK); 863 } 864 865 int 866 icp_ucmd(struct icp_softc *icp, gdt_ucmd_t *ucmd) 867 { 868 struct icp_ccb *ic; 869 struct icp_ucmd_ctx iu; 870 u_int32_t cnt; 871 int error; 872 873 if (ucmd->service == ICP_CACHESERVICE) { 874 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 875 cnt = ucmd->command.cmd_packet.ic.ic_bufsize; 876 if (cnt > GDT_SCRATCH_SZ) { 877 printf("%s: scratch buffer too small (%d/%d)\n", 878 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 879 return (EINVAL); 880 } 881 } else { 882 cnt = ucmd->command.cmd_packet.cc.cc_blockcnt * 883 ICP_SECTOR_SIZE; 884 if (cnt > GDT_SCRATCH_SZ) { 885 printf("%s: scratch buffer too small (%d/%d)\n", 886 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 887 return (EINVAL); 888 } 889 } 890 } else { 891 cnt = ucmd->command.cmd_packet.rc.rc_sdlen + 892 ucmd->command.cmd_packet.rc.rc_sense_len; 893 if (cnt > GDT_SCRATCH_SZ) { 894 printf("%s: scratch buffer too small (%d/%d)\n", 895 icp->icp_dv.dv_xname, GDT_SCRATCH_SZ, cnt); 896 return (EINVAL); 897 } 898 } 899 900 iu.iu_ucmd = ucmd; 901 iu.iu_cnt = cnt; 902 903 ic = icp_ccb_alloc_wait(icp); 904 memset(&ic->ic_cmd, 0, sizeof(ic->ic_cmd)); 905 ic->ic_cmd.cmd_opcode = htole16(ucmd->command.cmd_opcode); 906 907 if (ucmd->service == ICP_CACHESERVICE) { 908 if (ucmd->command.cmd_opcode == ICP_IOCTL) { 909 struct icp_ioctlcmd *icmd, *uicmd; 910 911 icmd = &ic->ic_cmd.cmd_packet.ic; 912 uicmd = &ucmd->command.cmd_packet.ic; 913 914 icmd->ic_subfunc = htole16(uicmd->ic_subfunc); 915 icmd->ic_channel = htole32(uicmd->ic_channel); 916 icmd->ic_bufsize = htole32(uicmd->ic_bufsize); 917 icmd->ic_addr = 918 htole32(icp->icp_scr_seg[0].ds_addr + 919 ICP_SCRATCH_UCMD); 920 } else { 921 struct icp_cachecmd *cc, *ucc; 922 923 cc = &ic->ic_cmd.cmd_packet.cc; 924 ucc = &ucmd->command.cmd_packet.cc; 925 926 cc->cc_deviceno = htole16(ucc->cc_deviceno); 927 cc->cc_blockno = htole32(ucc->cc_blockno); 928 cc->cc_blockcnt = htole32(ucc->cc_blockcnt); 929 cc->cc_addr = htole32(0xffffffffU); 930 cc->cc_nsgent = htole32(1); 931 cc->cc_sg[0].sg_addr = 932 htole32(icp->icp_scr_seg[0].ds_addr + 933 ICP_SCRATCH_UCMD); 934 cc->cc_sg[0].sg_len = htole32(cnt); 935 } 936 } else { 937 struct icp_rawcmd *rc, *urc; 938 939 rc = &ic->ic_cmd.cmd_packet.rc; 940 urc = &ucmd->command.cmd_packet.rc; 941 942 rc->rc_direction = htole32(urc->rc_direction); 943 rc->rc_sdata = htole32(0xffffffffU); 944 rc->rc_sdlen = htole32(urc->rc_sdlen); 945 rc->rc_clen = htole32(urc->rc_clen); 946 memcpy(rc->rc_cdb, urc->rc_cdb, sizeof(rc->rc_cdb)); 947 rc->rc_target = urc->rc_target; 948 rc->rc_lun = urc->rc_lun; 949 rc->rc_bus = urc->rc_bus; 950 rc->rc_sense_len = htole32(urc->rc_sense_len); 951 rc->rc_sense_addr = 952 htole32(icp->icp_scr_seg[0].ds_addr + 953 ICP_SCRATCH_UCMD + urc->rc_sdlen); 954 rc->rc_nsgent = htole32(1); 955 rc->rc_sg[0].sg_addr = 956 htole32(icp->icp_scr_seg[0].ds_addr + ICP_SCRATCH_UCMD); 957 rc->rc_sg[0].sg_len = htole32(cnt - urc->rc_sense_len); 958 } 959 960 ic->ic_service = ucmd->service; 961 ic->ic_cmdlen = sizeof(ic->ic_cmd); 962 ic->ic_context = &iu; 963 964 /* 965 * XXX What units are ucmd->timeout in? Until we know, we 966 * XXX just pull a number out of thin air. 967 */ 968 if (__predict_false((error = icp_ccb_wait_user(icp, ic, 30000)) != 0)) 969 printf("%s: error %d waiting for ucmd to complete\n", 970 icp->icp_dv.dv_xname, error); 971 972 /* icp_ucmd_intr() has updated ucmd. */ 973 icp_ccb_free(icp, ic); 974 975 return (error); 976 } 977 978 struct icp_ccb * 979 icp_ccb_alloc(struct icp_softc *icp) 980 { 981 struct icp_ccb *ic; 982 int s; 983 984 s = splbio(); 985 if (__predict_false((ic = 986 SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL)) { 987 splx(s); 988 return (NULL); 989 } 990 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 991 splx(s); 992 993 ic->ic_flags = IC_ALLOCED; 994 return (ic); 995 } 996 997 struct icp_ccb * 998 icp_ccb_alloc_wait(struct icp_softc *icp) 999 { 1000 struct icp_ccb *ic; 1001 int s; 1002 1003 s = splbio(); 1004 while ((ic = SIMPLEQ_FIRST(&icp->icp_ccb_freelist)) == NULL) { 1005 icp->icp_flags |= ICP_F_WAIT_CCB; 1006 (void) tsleep(&icp->icp_ccb_freelist, PRIBIO, "icpccb", 0); 1007 } 1008 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_freelist, ic_chain); 1009 splx(s); 1010 1011 ic->ic_flags = IC_ALLOCED; 1012 return (ic); 1013 } 1014 1015 void 1016 icp_ccb_free(struct icp_softc *icp, struct icp_ccb *ic) 1017 { 1018 int s; 1019 1020 s = splbio(); 1021 ic->ic_flags = 0; 1022 ic->ic_intr = NULL; 1023 SIMPLEQ_INSERT_HEAD(&icp->icp_ccb_freelist, ic, ic_chain); 1024 if (__predict_false((icp->icp_flags & ICP_F_WAIT_CCB) != 0)) { 1025 icp->icp_flags &= ~ICP_F_WAIT_CCB; 1026 wakeup(&icp->icp_ccb_freelist); 1027 } 1028 splx(s); 1029 } 1030 1031 void 1032 icp_ccb_enqueue(struct icp_softc *icp, struct icp_ccb *ic) 1033 { 1034 int s; 1035 1036 s = splbio(); 1037 1038 if (ic != NULL) { 1039 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1040 SIMPLEQ_INSERT_TAIL(&icp->icp_ucmd_queue, ic, ic_chain); 1041 else 1042 SIMPLEQ_INSERT_TAIL(&icp->icp_ccb_queue, ic, ic_chain); 1043 } 1044 1045 for (; icp->icp_qfreeze == 0;) { 1046 if (__predict_false((ic = 1047 SIMPLEQ_FIRST(&icp->icp_ucmd_queue)) != NULL)) { 1048 struct icp_ucmd_ctx *iu = ic->ic_context; 1049 gdt_ucmd_t *ucmd = iu->iu_ucmd; 1050 1051 /* 1052 * All user-generated commands share the same 1053 * scratch space, so if one is already running, 1054 * we have to stall the command queue. 1055 */ 1056 if (icp->icp_ucmd_ccb != NULL) 1057 break; 1058 if ((*icp->icp_test_busy)(icp)) 1059 break; 1060 icp->icp_ucmd_ccb = ic; 1061 1062 if (iu->iu_cnt != 0) { 1063 memcpy(icp->icp_scr + ICP_SCRATCH_UCMD, 1064 ucmd->data, iu->iu_cnt); 1065 bus_dmamap_sync(icp->icp_dmat, 1066 icp->icp_scr_dmamap, 1067 ICP_SCRATCH_UCMD, iu->iu_cnt, 1068 BUS_DMASYNC_PREREAD | 1069 BUS_DMASYNC_PREWRITE); 1070 } 1071 } else if (__predict_true((ic = 1072 SIMPLEQ_FIRST(&icp->icp_ccb_queue)) != NULL)) { 1073 if ((*icp->icp_test_busy)(icp)) 1074 break; 1075 } else { 1076 /* no command found */ 1077 break; 1078 } 1079 icp_ccb_submit(icp, ic); 1080 if (__predict_false((ic->ic_flags & IC_UCMD) != 0)) 1081 SIMPLEQ_REMOVE_HEAD(&icp->icp_ucmd_queue, ic_chain); 1082 else 1083 SIMPLEQ_REMOVE_HEAD(&icp->icp_ccb_queue, ic_chain); 1084 } 1085 1086 splx(s); 1087 } 1088 1089 int 1090 icp_ccb_map(struct icp_softc *icp, struct icp_ccb *ic, void *data, int size, 1091 int dir) 1092 { 1093 struct icp_sg *sg; 1094 int nsegs, i, rv; 1095 bus_dmamap_t xfer; 1096 1097 xfer = ic->ic_xfer_map; 1098 1099 rv = bus_dmamap_load(icp->icp_dmat, xfer, data, size, NULL, 1100 BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1101 ((dir & IC_XFER_IN) ? BUS_DMA_READ : BUS_DMA_WRITE)); 1102 if (rv != 0) 1103 return (rv); 1104 1105 nsegs = xfer->dm_nsegs; 1106 ic->ic_xfer_size = size; 1107 ic->ic_nsgent = nsegs; 1108 ic->ic_flags |= dir; 1109 sg = ic->ic_sg; 1110 1111 if (sg != NULL) { 1112 for (i = 0; i < nsegs; i++, sg++) { 1113 sg->sg_addr = htole32(xfer->dm_segs[i].ds_addr); 1114 sg->sg_len = htole32(xfer->dm_segs[i].ds_len); 1115 } 1116 } else if (nsegs > 1) 1117 panic("icp_ccb_map: no SG list specified, but nsegs > 1"); 1118 1119 if ((dir & IC_XFER_OUT) != 0) 1120 i = BUS_DMASYNC_PREWRITE; 1121 else /* if ((dir & IC_XFER_IN) != 0) */ 1122 i = BUS_DMASYNC_PREREAD; 1123 1124 bus_dmamap_sync(icp->icp_dmat, xfer, 0, ic->ic_xfer_size, i); 1125 return (0); 1126 } 1127 1128 void 1129 icp_ccb_unmap(struct icp_softc *icp, struct icp_ccb *ic) 1130 { 1131 int i; 1132 1133 if ((ic->ic_flags & IC_XFER_OUT) != 0) 1134 i = BUS_DMASYNC_POSTWRITE; 1135 else /* if ((ic->ic_flags & IC_XFER_IN) != 0) */ 1136 i = BUS_DMASYNC_POSTREAD; 1137 1138 bus_dmamap_sync(icp->icp_dmat, ic->ic_xfer_map, 0, ic->ic_xfer_size, i); 1139 bus_dmamap_unload(icp->icp_dmat, ic->ic_xfer_map); 1140 } 1141 1142 int 1143 icp_ccb_poll(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1144 { 1145 int s, rv; 1146 1147 s = splbio(); 1148 1149 for (timo = ICP_BUSY_WAIT_MS * 100; timo != 0; timo--) { 1150 if (!(*icp->icp_test_busy)(icp)) 1151 break; 1152 DELAY(10); 1153 } 1154 if (timo == 0) { 1155 printf("%s: submit: busy\n", icp->icp_dv.dv_xname); 1156 return (EAGAIN); 1157 } 1158 1159 icp_ccb_submit(icp, ic); 1160 1161 if (cold) { 1162 for (timo *= 10; timo != 0; timo--) { 1163 DELAY(100); 1164 icp_intr(icp); 1165 if ((ic->ic_flags & IC_COMPLETE) != 0) 1166 break; 1167 } 1168 } else { 1169 ic->ic_flags |= IC_WAITING; 1170 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1171 if ((rv = tsleep(ic, PRIBIO, "icpwccb", 1172 mstohz(timo))) != 0) { 1173 timo = 0; 1174 break; 1175 } 1176 } 1177 } 1178 1179 if (timo != 0) { 1180 if (ic->ic_status != ICP_S_OK) { 1181 #ifdef ICP_DEBUG 1182 printf("%s: request failed; status=0x%04x\n", 1183 icp->icp_dv.dv_xname, ic->ic_status); 1184 #endif 1185 rv = EIO; 1186 } else 1187 rv = 0; 1188 } else { 1189 printf("%s: command timed out\n", icp->icp_dv.dv_xname); 1190 rv = EIO; 1191 } 1192 1193 while ((*icp->icp_test_busy)(icp) != 0) 1194 DELAY(10); 1195 1196 splx(s); 1197 1198 return (rv); 1199 } 1200 1201 int 1202 icp_ccb_wait(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1203 { 1204 int s, rv; 1205 1206 ic->ic_flags |= IC_WAITING; 1207 1208 s = splbio(); 1209 icp_ccb_enqueue(icp, ic); 1210 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1211 if ((rv = tsleep(ic, PRIBIO, "icpwccb", mstohz(timo))) != 0) { 1212 splx(s); 1213 return (rv); 1214 } 1215 } 1216 splx(s); 1217 1218 if (ic->ic_status != ICP_S_OK) { 1219 printf("%s: command failed; status=%x\n", icp->icp_dv.dv_xname, 1220 ic->ic_status); 1221 return (EIO); 1222 } 1223 1224 return (0); 1225 } 1226 1227 int 1228 icp_ccb_wait_user(struct icp_softc *icp, struct icp_ccb *ic, int timo) 1229 { 1230 int s, rv; 1231 1232 ic->ic_dv = &icp->icp_dv; 1233 ic->ic_intr = icp_ucmd_intr; 1234 ic->ic_flags |= IC_UCMD; 1235 1236 s = splbio(); 1237 icp_ccb_enqueue(icp, ic); 1238 while ((ic->ic_flags & IC_COMPLETE) == 0) { 1239 if ((rv = tsleep(ic, PRIBIO, "icpwuccb", mstohz(timo))) != 0) { 1240 splx(s); 1241 return (rv); 1242 } 1243 } 1244 splx(s); 1245 1246 return (0); 1247 } 1248 1249 void 1250 icp_ccb_submit(struct icp_softc *icp, struct icp_ccb *ic) 1251 { 1252 1253 ic->ic_cmdlen = (ic->ic_cmdlen + 3) & ~3; 1254 1255 (*icp->icp_set_sema0)(icp); 1256 DELAY(10); 1257 1258 ic->ic_cmd.cmd_boardnode = htole32(ICP_LOCALBOARD); 1259 ic->ic_cmd.cmd_cmdindex = htole32(ic->ic_ident); 1260 1261 icp->icp_running++; 1262 1263 (*icp->icp_copy_cmd)(icp, ic); 1264 (*icp->icp_release_event)(icp, ic); 1265 } 1266 1267 int 1268 icp_freeze(struct icp_softc *icp) 1269 { 1270 int s, error = 0; 1271 1272 s = splbio(); 1273 if (icp->icp_qfreeze++ == 0) { 1274 while (icp->icp_running != 0) { 1275 icp->icp_flags |= ICP_F_WAIT_FREEZE; 1276 error = tsleep(&icp->icp_qfreeze, PRIBIO|PCATCH, 1277 "icpqfrz", 0); 1278 if (error != 0 && --icp->icp_qfreeze == 0 && 1279 ICP_HAS_WORK(icp)) { 1280 icp_ccb_enqueue(icp, NULL); 1281 break; 1282 } 1283 } 1284 } 1285 splx(s); 1286 1287 return (error); 1288 } 1289 1290 void 1291 icp_unfreeze(struct icp_softc *icp) 1292 { 1293 int s; 1294 1295 s = splbio(); 1296 KDASSERT(icp->icp_qfreeze != 0); 1297 if (--icp->icp_qfreeze == 0 && ICP_HAS_WORK(icp)) 1298 icp_ccb_enqueue(icp, NULL); 1299 splx(s); 1300 } 1301 1302 /* XXX Global - should be per-controller? XXX */ 1303 static gdt_evt_str icp_event_buffer[ICP_MAX_EVENTS]; 1304 static int icp_event_oldidx; 1305 static int icp_event_lastidx; 1306 1307 gdt_evt_str * 1308 icp_store_event(struct icp_softc *icp, u_int16_t source, u_int16_t idx, 1309 gdt_evt_data *evt) 1310 { 1311 gdt_evt_str *e; 1312 1313 /* no source == no event */ 1314 if (source == 0) 1315 return (NULL); 1316 1317 e = &icp_event_buffer[icp_event_lastidx]; 1318 if (e->event_source == source && e->event_idx == idx && 1319 ((evt->size != 0 && e->event_data.size != 0 && 1320 memcmp(&e->event_data.eu, &evt->eu, evt->size) == 0) || 1321 (evt->size == 0 && e->event_data.size == 0 && 1322 strcmp((char *) e->event_data.event_string, 1323 (char *) evt->event_string) == 0))) { 1324 e->last_stamp = time.tv_sec; 1325 e->same_count++; 1326 } else { 1327 if (icp_event_buffer[icp_event_lastidx].event_source != 0) { 1328 icp_event_lastidx++; 1329 if (icp_event_lastidx == ICP_MAX_EVENTS) 1330 icp_event_lastidx = 0; 1331 if (icp_event_lastidx == icp_event_oldidx) { 1332 icp_event_oldidx++; 1333 if (icp_event_oldidx == ICP_MAX_EVENTS) 1334 icp_event_oldidx = 0; 1335 } 1336 } 1337 e = &icp_event_buffer[icp_event_lastidx]; 1338 e->event_source = source; 1339 e->event_idx = idx; 1340 e->first_stamp = e->last_stamp = time.tv_sec; 1341 e->same_count = 1; 1342 e->event_data = *evt; 1343 e->application = 0; 1344 } 1345 return (e); 1346 } 1347 1348 int 1349 icp_read_event(struct icp_softc *icp, int handle, gdt_evt_str *estr) 1350 { 1351 gdt_evt_str *e; 1352 int eindex, s; 1353 1354 s = splbio(); 1355 1356 if (handle == -1) 1357 eindex = icp_event_oldidx; 1358 else 1359 eindex = handle; 1360 1361 estr->event_source = 0; 1362 1363 if (eindex < 0 || eindex >= ICP_MAX_EVENTS) { 1364 splx(s); 1365 return (eindex); 1366 } 1367 1368 e = &icp_event_buffer[eindex]; 1369 if (e->event_source != 0) { 1370 if (eindex != icp_event_lastidx) { 1371 eindex++; 1372 if (eindex == ICP_MAX_EVENTS) 1373 eindex = 0; 1374 } else 1375 eindex = -1; 1376 memcpy(estr, e, sizeof(gdt_evt_str)); 1377 } 1378 1379 splx(s); 1380 1381 return (eindex); 1382 } 1383 1384 void 1385 icp_readapp_event(struct icp_softc *icp, u_int8_t application, 1386 gdt_evt_str *estr) 1387 { 1388 gdt_evt_str *e; 1389 int found = 0, eindex, s; 1390 1391 s = splbio(); 1392 1393 eindex = icp_event_oldidx; 1394 for (;;) { 1395 e = &icp_event_buffer[eindex]; 1396 if (e->event_source == 0) 1397 break; 1398 if ((e->application & application) == 0) { 1399 e->application |= application; 1400 found = 1; 1401 break; 1402 } 1403 if (eindex == icp_event_lastidx) 1404 break; 1405 eindex++; 1406 if (eindex == ICP_MAX_EVENTS) 1407 eindex = 0; 1408 } 1409 if (found) 1410 memcpy(estr, e, sizeof(gdt_evt_str)); 1411 else 1412 estr->event_source = 0; 1413 1414 splx(s); 1415 } 1416 1417 void 1418 icp_clear_events(struct icp_softc *icp) 1419 { 1420 int s; 1421 1422 s = splbio(); 1423 icp_event_oldidx = icp_event_lastidx = 0; 1424 memset(icp_event_buffer, 0, sizeof(icp_event_buffer)); 1425 splx(s); 1426 } 1427
Indexes created Tue Sep 23 07:09:52 GMT 2025