1 /*- 2 * Written by: David Jeffery 3 * Copyright (c) 2002 Adaptec Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/ips/ips.c,v 1.12 2004/05/30 04:01:29 scottl Exp $ 28 * $DragonFly: src/sys/dev/raid/ips/ips.c,v 1.19 2006/12/22 23:26:23 swildner Exp $ 29 */ 30 31 #include <dev/raid/ips/ips.h> 32 #include <sys/stat.h> 33 #include <sys/time.h> 34 #include <sys/thread2.h> 35 #include <machine/clock.h> 36 37 static d_open_t ips_open; 38 static d_close_t ips_close; 39 static d_ioctl_t ips_ioctl; 40 41 MALLOC_DEFINE(M_IPSBUF, "ipsbuf", "IPS driver buffer"); 42 43 static struct dev_ops ips_ops = { 44 { "ips", IPS_CDEV_MAJOR, D_DISK }, 45 .d_open = ips_open, 46 .d_close = ips_close, 47 .d_ioctl = ips_ioctl, 48 }; 49 50 static const char *ips_adapter_name[] = { 51 "N/A", 52 "ServeRAID (copperhead)", 53 "ServeRAID II (copperhead refresh)", 54 "ServeRAID onboard (copperhead)", 55 "ServeRAID onboard (copperhead)", 56 "ServeRAID 3H (clarinet)", 57 "ServeRAID 3L (clarinet lite)", 58 "ServeRAID 4H (trombone)", 59 "ServeRAID 4M (morpheus)", 60 "ServeRAID 4L (morpheus lite)", 61 "ServeRAID 4Mx (neo)", 62 "ServeRAID 4Lx (neo lite)", 63 "ServeRAID 5i II (sarasota)", 64 "ServeRAID 5i (sarasota)", 65 "ServeRAID 6M (marco)", 66 "ServeRAID 6i (sebring)" 67 }; 68 69 70 static int 71 ips_open(struct dev_open_args *ap) 72 { 73 cdev_t dev = ap->a_head.a_dev; 74 ips_softc_t *sc = dev->si_drv1; 75 76 sc->state |= IPS_DEV_OPEN; 77 return 0; 78 } 79 80 static int 81 ips_close(struct dev_close_args *ap) 82 { 83 cdev_t dev = ap->a_head.a_dev; 84 ips_softc_t *sc = dev->si_drv1; 85 86 sc->state &= ~IPS_DEV_OPEN; 87 return 0; 88 } 89 90 static int 91 ips_ioctl(struct dev_ioctl_args *ap) 92 { 93 ips_softc_t *sc; 94 95 sc = ap->a_head.a_dev->si_drv1; 96 return ips_ioctl_request(sc, ap->a_cmd, ap->a_data, ap->a_fflag); 97 } 98 99 static void 100 ips_cmd_dmaload(void *cmdptr, bus_dma_segment_t *segments, int segnum, 101 int error) 102 { 103 ips_command_t *command = cmdptr; 104 105 PRINTF(10, "ips: in ips_cmd_dmaload\n"); 106 if (!error) 107 command->command_phys_addr = segments[0].ds_addr; 108 109 } 110 111 /* is locking needed? what locking guarentees are there on removal? */ 112 static int 113 ips_cmdqueue_free(ips_softc_t *sc) 114 { 115 int i, error = -1; 116 ips_command_t *command; 117 118 crit_enter(); 119 if (sc->used_commands == 0) { 120 for (i = 0; i < sc->max_cmds; i++) { 121 command = &sc->commandarray[i]; 122 if (command->command_phys_addr == 0) 123 continue; 124 bus_dmamap_unload(sc->command_dmatag, 125 command->command_dmamap); 126 bus_dmamem_free(sc->command_dmatag, 127 command->command_buffer, 128 command->command_dmamap); 129 if (command->data_dmamap != NULL) 130 bus_dmamap_destroy(command->data_dmatag, 131 command->data_dmamap); 132 } 133 error = 0; 134 sc->state |= IPS_OFFLINE; 135 } 136 sc->staticcmd = NULL; 137 kfree(sc->commandarray, M_IPSBUF); 138 crit_exit(); 139 return error; 140 } 141 142 /* 143 * Places all ips command structs on the free command queue. 144 * The first slot is used exclusively for static commands 145 * No locking as if someone else tries to access this during init, 146 * we have bigger problems 147 */ 148 static int 149 ips_cmdqueue_init(ips_softc_t *sc) 150 { 151 int i; 152 ips_command_t *command; 153 154 sc->commandarray = kmalloc(sizeof(sc->commandarray[0]) * sc->max_cmds, 155 M_IPSBUF, M_INTWAIT | M_ZERO); 156 SLIST_INIT(&sc->free_cmd_list); 157 for (i = 0; i < sc->max_cmds; i++) { 158 command = &sc->commandarray[i]; 159 command->id = i; 160 command->sc = sc; 161 if (bus_dmamem_alloc(sc->command_dmatag, 162 &command->command_buffer, BUS_DMA_NOWAIT, 163 &command->command_dmamap)) 164 goto error; 165 bus_dmamap_load(sc->command_dmatag, command->command_dmamap, 166 command->command_buffer, IPS_COMMAND_LEN, ips_cmd_dmaload, 167 command, BUS_DMA_NOWAIT); 168 if (command->command_phys_addr == 0) { 169 bus_dmamem_free(sc->command_dmatag, 170 command->command_buffer, command->command_dmamap); 171 goto error; 172 } 173 174 if (i == 0) 175 sc->staticcmd = command; 176 else { 177 command->data_dmatag = sc->sg_dmatag; 178 if (bus_dmamap_create(command->data_dmatag, 0, 179 &command->data_dmamap)) 180 goto error; 181 SLIST_INSERT_HEAD(&sc->free_cmd_list, command, next); 182 } 183 } 184 sc->state &= ~IPS_OFFLINE; 185 return 0; 186 error: 187 ips_cmdqueue_free(sc); 188 return ENOMEM; 189 } 190 191 /* 192 * returns a free command struct if one is available. 193 * It also blanks out anything that may be a wild pointer/value. 194 * Also, command buffers are not freed. They are 195 * small so they are saved and kept dmamapped and loaded. 196 */ 197 int 198 ips_get_free_cmd(ips_softc_t *sc, ips_command_t **cmd, unsigned long flags) 199 { 200 ips_command_t *command = NULL; 201 int error = 0; 202 203 crit_enter(); 204 if (sc->state & IPS_OFFLINE) { 205 error = EIO; 206 goto bail; 207 } 208 if ((flags & IPS_STATIC_FLAG) != 0) { 209 if (sc->state & IPS_STATIC_BUSY) { 210 error = EAGAIN; 211 goto bail; 212 } 213 command = sc->staticcmd; 214 sc->state |= IPS_STATIC_BUSY; 215 } else { 216 command = SLIST_FIRST(&sc->free_cmd_list); 217 if (!command || (sc->state & IPS_TIMEOUT)) { 218 error = EBUSY; 219 goto bail; 220 } 221 SLIST_REMOVE_HEAD(&sc->free_cmd_list, next); 222 sc->used_commands++; 223 } 224 bail: 225 crit_exit(); 226 if (error != 0) 227 return error; 228 229 bzero(&command->status, (char *)(command + 1) - (char *)(&command->status)); 230 bzero(command->command_buffer, IPS_COMMAND_LEN); 231 *cmd = command; 232 return 0; 233 } 234 235 /* adds a command back to the free command queue */ 236 void 237 ips_insert_free_cmd(ips_softc_t *sc, ips_command_t *command) 238 { 239 crit_enter(); 240 if (command == sc->staticcmd) 241 sc->state &= ~IPS_STATIC_BUSY; 242 else { 243 SLIST_INSERT_HEAD(&sc->free_cmd_list, command, next); 244 sc->used_commands--; 245 } 246 crit_exit(); 247 } 248 249 static const char * 250 ips_diskdev_statename(u_int8_t state) 251 { 252 static char statebuf[20]; 253 254 switch(state) { 255 case IPS_LD_OFFLINE: 256 return("OFFLINE"); 257 break; 258 case IPS_LD_OKAY: 259 return("OK"); 260 break; 261 case IPS_LD_DEGRADED: 262 return("DEGRADED"); 263 break; 264 case IPS_LD_FREE: 265 return("FREE"); 266 break; 267 case IPS_LD_SYS: 268 return("SYS"); 269 break; 270 case IPS_LD_CRS: 271 return("CRS"); 272 break; 273 } 274 ksprintf(statebuf, "UNKNOWN(0x%02x)", state); 275 return (statebuf); 276 } 277 278 static int 279 ips_diskdev_init(ips_softc_t *sc) 280 { 281 int i; 282 283 for (i = 0; i < IPS_MAX_NUM_DRIVES; i++) { 284 if (sc->drives[i].state == IPS_LD_FREE) 285 continue; 286 device_printf(sc->dev, 287 "Logical Drive %d: RAID%d sectors: %u, state %s\n", i, 288 sc->drives[i].raid_lvl, sc->drives[i].sector_count, 289 ips_diskdev_statename(sc->drives[i].state)); 290 if (sc->drives[i].state == IPS_LD_OKAY || 291 sc->drives[i].state == IPS_LD_DEGRADED) { 292 sc->diskdev[i] = device_add_child(sc->dev, NULL, -1); 293 device_set_ivars(sc->diskdev[i], (void *)(uintptr_t)i); 294 } 295 } 296 if (bus_generic_attach(sc->dev)) 297 device_printf(sc->dev, "Attaching bus failed\n"); 298 return 0; 299 } 300 301 static int 302 ips_diskdev_free(ips_softc_t *sc) 303 { 304 int i; 305 int error = 0; 306 307 for (i = 0; i < IPS_MAX_NUM_DRIVES; i++) { 308 if (sc->diskdev[i] != NULL) { 309 error = device_delete_child(sc->dev, sc->diskdev[i]); 310 if (error) 311 return error; 312 } 313 } 314 bus_generic_detach(sc->dev); 315 return 0; 316 } 317 318 /* 319 * ips_timeout is periodically called to make sure no commands sent 320 * to the card have become stuck. If it finds a stuck command, it 321 * sets a flag so the driver won't start any more commands and then 322 * is periodically called to see if all outstanding commands have 323 * either finished or timed out. Once timed out, an attempt to 324 * reinitialize the card is made. If that fails, the driver gives 325 * up and declares the card dead. 326 */ 327 static void 328 ips_timeout(void *arg) 329 { 330 ips_command_t *command; 331 ips_softc_t *sc = arg; 332 int i, state = 0; 333 334 lockmgr(&sc->queue_lock, LK_EXCLUSIVE|LK_RETRY); 335 command = &sc->commandarray[0]; 336 for (i = 0; i < sc->max_cmds; i++) { 337 if (!command[i].timeout) 338 continue; 339 command[i].timeout--; 340 if (command[i].timeout == 0) { 341 if (!(sc->state & IPS_TIMEOUT)) { 342 sc->state |= IPS_TIMEOUT; 343 device_printf(sc->dev, "WARNING: command timeout. Adapter is in toaster mode, resetting to known state\n"); 344 } 345 command[i].status.value = IPS_ERROR_STATUS; 346 command[i].callback(&command[i]); 347 /* hmm, this should be enough cleanup */ 348 } else 349 state = 1; 350 } 351 if (!state && (sc->state & IPS_TIMEOUT)) { 352 if (sc->ips_adapter_reinit(sc, 1)) { 353 device_printf(sc->dev, "AIEE! adapter reset failed, " 354 "giving up and going home! Have a nice day.\n"); 355 sc->state |= IPS_OFFLINE; 356 sc->state &= ~IPS_TIMEOUT; 357 /* 358 * Grr, I hate this solution. I run waiting commands 359 * one at a time and error them out just before they 360 * would go to the card. This sucks. 361 */ 362 } else 363 sc->state &= ~IPS_TIMEOUT; 364 } 365 if (sc->state != IPS_OFFLINE) 366 callout_reset(&sc->timer, 10 * hz, ips_timeout, sc); 367 lockmgr(&sc->queue_lock, LK_RELEASE); 368 } 369 370 /* check card and initialize it */ 371 int 372 ips_adapter_init(ips_softc_t *sc) 373 { 374 int i; 375 cdev_t dev; 376 377 DEVICE_PRINTF(1, sc->dev, "initializing\n"); 378 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 379 /* alignemnt */ 1, 380 /* boundary */ 0, 381 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 382 /* highaddr */ BUS_SPACE_MAXADDR, 383 /* filter */ NULL, 384 /* filterarg */ NULL, 385 /* maxsize */ IPS_COMMAND_LEN + 386 IPS_MAX_SG_LEN, 387 /* numsegs */ 1, 388 /* maxsegsize*/ IPS_COMMAND_LEN + 389 IPS_MAX_SG_LEN, 390 /* flags */ 0, 391 &sc->command_dmatag) != 0) { 392 device_printf(sc->dev, "can't alloc command dma tag\n"); 393 goto error; 394 } 395 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 396 /* alignemnt */ 1, 397 /* boundary */ 0, 398 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 399 /* highaddr */ BUS_SPACE_MAXADDR, 400 /* filter */ NULL, 401 /* filterarg */ NULL, 402 /* maxsize */ IPS_MAX_IOBUF_SIZE, 403 /* numsegs */ IPS_MAX_SG_ELEMENTS, 404 /* maxsegsize*/ IPS_MAX_IOBUF_SIZE, 405 /* flags */ 0, 406 &sc->sg_dmatag) != 0) { 407 device_printf(sc->dev, "can't alloc SG dma tag\n"); 408 goto error; 409 } 410 /* 411 * create one command buffer until we know how many commands this card 412 * can handle 413 */ 414 sc->max_cmds = 1; 415 ips_cmdqueue_init(sc); 416 callout_init(&sc->timer); 417 if (sc->ips_adapter_reinit(sc, 0)) 418 goto error; 419 /* initialize ffdc values */ 420 microtime(&sc->ffdc_resettime); 421 sc->ffdc_resetcount = 1; 422 if ((i = ips_ffdc_reset(sc)) != 0) { 423 device_printf(sc->dev, 424 "failed to send ffdc reset to device (%d)\n", i); 425 goto error; 426 } 427 if ((i = ips_get_adapter_info(sc)) != 0) { 428 device_printf(sc->dev, "failed to get adapter configuration " 429 "data from device (%d)\n", i); 430 goto error; 431 } 432 /* no error check as failure doesn't matter */ 433 ips_update_nvram(sc); 434 if (sc->adapter_type > 0 && sc->adapter_type <= IPS_ADAPTER_MAX_T) { 435 device_printf(sc->dev, "adapter type: %s\n", 436 ips_adapter_name[sc->adapter_type]); 437 } 438 if ((i = ips_get_drive_info(sc)) != 0) { 439 device_printf(sc->dev, "failed to get drive " 440 "configuration data from device (%d)\n", i); 441 goto error; 442 } 443 ips_cmdqueue_free(sc); 444 if (sc->adapter_info.max_concurrent_cmds) 445 sc->max_cmds = min(128, sc->adapter_info.max_concurrent_cmds); 446 else 447 sc->max_cmds = 32; 448 if (ips_cmdqueue_init(sc)) { 449 device_printf(sc->dev, 450 "failed to initialize command buffers\n"); 451 goto error; 452 } 453 dev = make_dev(&ips_ops, device_get_unit(sc->dev), 454 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 455 "ips%d", device_get_unit(sc->dev)); 456 dev->si_drv1 = sc; 457 ips_diskdev_init(sc); 458 callout_reset(&sc->timer, 10 * hz, ips_timeout, sc); 459 return 0; 460 error: 461 ips_adapter_free(sc); 462 return ENXIO; 463 } 464 465 /* 466 * see if we should reinitialize the card and wait for it to timeout 467 * or complete initialization 468 */ 469 int 470 ips_morpheus_reinit(ips_softc_t *sc, int force) 471 { 472 u_int32_t tmp; 473 int i; 474 475 tmp = ips_read_4(sc, MORPHEUS_REG_OISR); 476 if (!force && (ips_read_4(sc, MORPHEUS_REG_OMR0) >= IPS_POST1_OK) && 477 (ips_read_4(sc, MORPHEUS_REG_OMR1) != 0xdeadbeef) && !tmp) { 478 ips_write_4(sc, MORPHEUS_REG_OIMR, 0); 479 return 0; 480 } 481 ips_write_4(sc, MORPHEUS_REG_OIMR, 0xff); 482 ips_read_4(sc, MORPHEUS_REG_OIMR); 483 device_printf(sc->dev, 484 "resetting adapter, this may take up to 5 minutes\n"); 485 ips_write_4(sc, MORPHEUS_REG_IDR, 0x80000000); 486 DELAY(5000000); 487 pci_read_config(sc->dev, 0, 4); 488 tmp = ips_read_4(sc, MORPHEUS_REG_OISR); 489 for (i = 0; i < 45 && !(tmp & MORPHEUS_BIT_POST1); i++) { 490 DELAY(1000000); 491 DEVICE_PRINTF(2, sc->dev, "post1: %d\n", i); 492 tmp = ips_read_4(sc, MORPHEUS_REG_OISR); 493 } 494 if (tmp & MORPHEUS_BIT_POST1) 495 ips_write_4(sc, MORPHEUS_REG_OISR, MORPHEUS_BIT_POST1); 496 497 if (i == 45 || ips_read_4(sc, MORPHEUS_REG_OMR0) < IPS_POST1_OK) { 498 device_printf(sc->dev, 499 "Adapter error during initialization.\n"); 500 return 1; 501 } 502 for (i = 0; i < 240 && !(tmp & MORPHEUS_BIT_POST2); i++) { 503 DELAY(1000000); 504 DEVICE_PRINTF(2, sc->dev, "post2: %d\n", i); 505 tmp = ips_read_4(sc, MORPHEUS_REG_OISR); 506 } 507 if (tmp & MORPHEUS_BIT_POST2) 508 ips_write_4(sc, MORPHEUS_REG_OISR, MORPHEUS_BIT_POST2); 509 510 if (i == 240 || !ips_read_4(sc, MORPHEUS_REG_OMR1)) { 511 device_printf(sc->dev, "adapter failed config check\n"); 512 return 1; 513 } 514 ips_write_4(sc, MORPHEUS_REG_OIMR, 0); 515 if (force && ips_clear_adapter(sc)) { 516 device_printf(sc->dev, "adapter clear failed\n"); 517 return 1; 518 } 519 return 0; 520 } 521 522 /* clean up so we can unload the driver. */ 523 int 524 ips_adapter_free(ips_softc_t *sc) 525 { 526 int error = 0; 527 528 if (sc->state & IPS_DEV_OPEN) 529 return EBUSY; 530 if ((error = ips_diskdev_free(sc))) 531 return error; 532 if (ips_cmdqueue_free(sc)) { 533 device_printf(sc->dev, 534 "trying to exit when command queue is not empty!\n"); 535 return EBUSY; 536 } 537 DEVICE_PRINTF(1, sc->dev, "free\n"); 538 crit_enter(); 539 callout_stop(&sc->timer); 540 crit_exit(); 541 if (sc->sg_dmatag) 542 bus_dma_tag_destroy(sc->sg_dmatag); 543 if (sc->command_dmatag) 544 bus_dma_tag_destroy(sc->command_dmatag); 545 dev_ops_remove_minor(&ips_ops, device_get_unit(sc->dev)); 546 return 0; 547 } 548 549 static int 550 ips_morpheus_check_intr(void *void_sc) 551 { 552 ips_softc_t *sc = (ips_softc_t *)void_sc; 553 u_int32_t oisr, iisr; 554 ips_cmd_status_t status; 555 ips_command_t *command; 556 int cmdnumber; 557 int found = 0; 558 559 iisr =ips_read_4(sc, MORPHEUS_REG_IISR); 560 oisr =ips_read_4(sc, MORPHEUS_REG_OISR); 561 PRINTF(9, "interrupt registers in:%x out:%x\n", iisr, oisr); 562 if (!(oisr & MORPHEUS_BIT_CMD_IRQ)) { 563 DEVICE_PRINTF(2, sc->dev, "got a non-command irq\n"); 564 return(0); 565 } 566 while ((status.value = ips_read_4(sc, MORPHEUS_REG_OQPR)) 567 != 0xffffffff) { 568 cmdnumber = status.fields.command_id; 569 command = &sc->commandarray[cmdnumber]; 570 command->status.value = status.value; 571 command->timeout = 0; 572 command->callback(command); 573 DEVICE_PRINTF(9, sc->dev, "got command %d\n", cmdnumber); 574 found = 1; 575 } 576 return(found); 577 } 578 579 void 580 ips_morpheus_intr(void *void_sc) 581 { 582 ips_softc_t *sc = void_sc; 583 584 lockmgr(&sc->queue_lock, LK_EXCLUSIVE|LK_RETRY); 585 ips_morpheus_check_intr(sc); 586 lockmgr(&sc->queue_lock, LK_RELEASE); 587 } 588 589 void 590 ips_issue_morpheus_cmd(ips_command_t *command) 591 { 592 crit_enter(); 593 /* hmmm, is there a cleaner way to do this? */ 594 if (command->sc->state & IPS_OFFLINE) { 595 crit_exit(); 596 command->status.value = IPS_ERROR_STATUS; 597 command->callback(command); 598 return; 599 } 600 command->timeout = 10; 601 ips_write_4(command->sc, MORPHEUS_REG_IQPR, command->command_phys_addr); 602 crit_exit(); 603 } 604 605 void 606 ips_morpheus_poll(ips_command_t *command) 607 { 608 uint32_t ts; 609 610 ts = time_second + command->timeout; 611 while (command->timeout != 0 && 612 ips_morpheus_check_intr(command->sc) == 0 && 613 (ts > time_second)) 614 DELAY(1000); 615 } 616 617 static void 618 ips_copperhead_queue_callback(void *queueptr, bus_dma_segment_t *segments, 619 int segnum, int error) 620 { 621 ips_copper_queue_t *queue = queueptr; 622 623 if (error) 624 return; 625 queue->base_phys_addr = segments[0].ds_addr; 626 } 627 628 static int 629 ips_copperhead_queue_init(ips_softc_t *sc) 630 { 631 bus_dma_tag_t dmatag; 632 bus_dmamap_t dmamap; 633 int error; 634 635 if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag, 636 /* alignemnt */ 1, 637 /* boundary */ 0, 638 /* lowaddr */ BUS_SPACE_MAXADDR_32BIT, 639 /* highaddr */ BUS_SPACE_MAXADDR, 640 /* filter */ NULL, 641 /* filterarg */ NULL, 642 /* maxsize */ sizeof(ips_copper_queue_t), 643 /* numsegs */ 1, 644 /* maxsegsize*/ sizeof(ips_copper_queue_t), 645 /* flags */ 0, 646 &dmatag) != 0) { 647 device_printf(sc->dev, "can't alloc dma tag for statue queue\n"); 648 error = ENOMEM; 649 goto exit; 650 } 651 if (bus_dmamem_alloc(dmatag, (void *)&(sc->copper_queue), 652 BUS_DMA_NOWAIT, &dmamap)) { 653 error = ENOMEM; 654 goto exit; 655 } 656 bzero(sc->copper_queue, sizeof(ips_copper_queue_t)); 657 sc->copper_queue->dmatag = dmatag; 658 sc->copper_queue->dmamap = dmamap; 659 sc->copper_queue->nextstatus = 1; 660 bus_dmamap_load(dmatag, dmamap, &(sc->copper_queue->status[0]), 661 IPS_MAX_CMD_NUM * 4, ips_copperhead_queue_callback, 662 sc->copper_queue, BUS_DMA_NOWAIT); 663 if (sc->copper_queue->base_phys_addr == 0) { 664 error = ENOMEM; 665 goto exit; 666 } 667 ips_write_4(sc, COPPER_REG_SQSR, sc->copper_queue->base_phys_addr); 668 ips_write_4(sc, COPPER_REG_SQER, sc->copper_queue->base_phys_addr + 669 IPS_MAX_CMD_NUM * 4); 670 ips_write_4(sc, COPPER_REG_SQHR, sc->copper_queue->base_phys_addr + 4); 671 ips_write_4(sc, COPPER_REG_SQTR, sc->copper_queue->base_phys_addr); 672 return 0; 673 exit: 674 bus_dmamem_free(dmatag, sc->copper_queue, dmamap); 675 bus_dma_tag_destroy(dmatag); 676 return error; 677 } 678 679 /* 680 * see if we should reinitialize the card and wait for it to timeout or 681 * complete initialization FIXME 682 */ 683 int 684 ips_copperhead_reinit(ips_softc_t *sc, int force) 685 { 686 u_int32_t postcode = 0, configstatus = 0; 687 int i, j; 688 689 ips_write_1(sc, COPPER_REG_SCPR, 0x80); 690 ips_write_1(sc, COPPER_REG_SCPR, 0); 691 device_printf(sc->dev, 692 "reinitializing adapter, this could take several minutes.\n"); 693 for (j = 0; j < 2; j++) { 694 postcode <<= 8; 695 for (i = 0; i < 45; i++) { 696 if (ips_read_1(sc, COPPER_REG_HISR) & COPPER_GHI_BIT) { 697 postcode |= ips_read_1(sc, COPPER_REG_ISPR); 698 ips_write_1(sc, COPPER_REG_HISR, 699 COPPER_GHI_BIT); 700 break; 701 } else 702 DELAY(1000000); 703 } 704 if (i == 45) 705 return 1; 706 } 707 for (j = 0; j < 2; j++) { 708 configstatus <<= 8; 709 for (i = 0; i < 240; i++) { 710 if (ips_read_1(sc, COPPER_REG_HISR) & COPPER_GHI_BIT) { 711 configstatus |= ips_read_1(sc, COPPER_REG_ISPR); 712 ips_write_1(sc, COPPER_REG_HISR, 713 COPPER_GHI_BIT); 714 break; 715 } else 716 DELAY(1000000); 717 } 718 if (i == 240) 719 return 1; 720 } 721 for (i = 0; i < 240; i++) { 722 if (!(ips_read_1(sc, COPPER_REG_CBSP) & COPPER_OP_BIT)) 723 break; 724 else 725 DELAY(1000000); 726 } 727 if (i == 240) 728 return 1; 729 ips_write_2(sc, COPPER_REG_CCCR, 0x1000 | COPPER_ILE_BIT); 730 ips_write_1(sc, COPPER_REG_SCPR, COPPER_EBM_BIT); 731 ips_copperhead_queue_init(sc); 732 ips_write_1(sc, COPPER_REG_HISR, COPPER_GHI_BIT); 733 i = ips_read_1(sc, COPPER_REG_SCPR); 734 ips_write_1(sc, COPPER_REG_HISR, COPPER_EI_BIT); 735 if (configstatus == 0) { 736 device_printf(sc->dev, "adapter initialization failed\n"); 737 return 1; 738 } 739 if (force && ips_clear_adapter(sc)) { 740 device_printf(sc->dev, "adapter clear failed\n"); 741 return 1; 742 } 743 return 0; 744 } 745 746 static u_int32_t 747 ips_copperhead_cmd_status(ips_softc_t *sc) 748 { 749 u_int32_t value; 750 int statnum; 751 752 statnum = sc->copper_queue->nextstatus++; 753 if (sc->copper_queue->nextstatus == IPS_MAX_CMD_NUM) 754 sc->copper_queue->nextstatus = 0; 755 crit_enter(); 756 value = sc->copper_queue->status[statnum]; 757 ips_write_4(sc, COPPER_REG_SQTR, sc->copper_queue->base_phys_addr + 758 4 * statnum); 759 crit_exit(); 760 return value; 761 } 762 763 void 764 ips_copperhead_intr(void *void_sc) 765 { 766 ips_softc_t *sc = (ips_softc_t *)void_sc; 767 ips_cmd_status_t status; 768 int cmdnumber; 769 770 lockmgr(&sc->queue_lock, LK_EXCLUSIVE|LK_RETRY); 771 while (ips_read_1(sc, COPPER_REG_HISR) & COPPER_SCE_BIT) { 772 status.value = ips_copperhead_cmd_status(sc); 773 cmdnumber = status.fields.command_id; 774 sc->commandarray[cmdnumber].status.value = status.value; 775 sc->commandarray[cmdnumber].timeout = 0; 776 sc->commandarray[cmdnumber].callback(&(sc->commandarray[cmdnumber])); 777 PRINTF(9, "ips: got command %d\n", cmdnumber); 778 } 779 lockmgr(&sc->queue_lock, LK_RELEASE); 780 return; 781 } 782 783 void 784 ips_issue_copperhead_cmd(ips_command_t *command) 785 { 786 int i; 787 788 crit_enter(); 789 /* hmmm, is there a cleaner way to do this? */ 790 if (command->sc->state & IPS_OFFLINE) { 791 crit_exit(); 792 command->status.value = IPS_ERROR_STATUS; 793 command->callback(command); 794 return; 795 } 796 command->timeout = 10; 797 for (i = 0; ips_read_4(command->sc, COPPER_REG_CCCR) & COPPER_SEM_BIT; 798 i++) { 799 if (i == 20) { 800 kprintf("sem bit still set, can't send a command\n"); 801 crit_exit(); 802 return; 803 } 804 DELAY(500); /* need to do a delay here */ 805 } 806 ips_write_4(command->sc, COPPER_REG_CCSAR, command->command_phys_addr); 807 ips_write_2(command->sc, COPPER_REG_CCCR, COPPER_CMD_START); 808 crit_exit(); 809 } 810 811 void 812 ips_copperhead_poll(ips_command_t *command) 813 { 814 kprintf("ips: cmd polling not implemented for copperhead devices\n"); 815 } 816