twe.c revision 1.101
1 /* $NetBSD: twe.c,v 1.101 2014/03/16 05:20:28 dholland Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001, 2002, 2003, 2004 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) 2000 Michael Smith 34 * Copyright (c) 2000 BSDi 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 * from FreeBSD: twe.c,v 1.1 2000/05/24 23:35:23 msmith Exp 59 */ 60 61 /* 62 * Driver for the 3ware Escalade family of RAID controllers. 63 */ 64 65 #include <sys/cdefs.h> 66 __KERNEL_RCSID(0, "$NetBSD: twe.c,v 1.101 2014/03/16 05:20:28 dholland Exp $"); 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/device.h> 72 #include <sys/queue.h> 73 #include <sys/proc.h> 74 #include <sys/buf.h> 75 #include <sys/endian.h> 76 #include <sys/malloc.h> 77 #include <sys/conf.h> 78 #include <sys/disk.h> 79 #include <sys/sysctl.h> 80 #include <sys/syslog.h> 81 #include <sys/kauth.h> 82 83 #include <sys/bswap.h> 84 #include <sys/bus.h> 85 86 #include <dev/pci/pcireg.h> 87 #include <dev/pci/pcivar.h> 88 #include <dev/pci/pcidevs.h> 89 #include <dev/pci/twereg.h> 90 #include <dev/pci/twevar.h> 91 #include <dev/pci/tweio.h> 92 93 #include "locators.h" 94 95 #define PCI_CBIO 0x10 96 97 static int twe_aen_get(struct twe_softc *, uint16_t *); 98 static void twe_aen_handler(struct twe_ccb *, int); 99 static void twe_aen_enqueue(struct twe_softc *sc, uint16_t, int); 100 static uint16_t twe_aen_dequeue(struct twe_softc *); 101 102 static void twe_attach(device_t, device_t, void *); 103 static int twe_init_connection(struct twe_softc *); 104 static int twe_intr(void *); 105 static int twe_match(device_t, cfdata_t, void *); 106 static int twe_param_set(struct twe_softc *, int, int, size_t, void *); 107 static void twe_poll(struct twe_softc *); 108 static int twe_print(void *, const char *); 109 static int twe_reset(struct twe_softc *); 110 static int twe_status_check(struct twe_softc *, u_int); 111 static int twe_status_wait(struct twe_softc *, u_int, int); 112 static void twe_describe_controller(struct twe_softc *); 113 static void twe_clear_pci_abort(struct twe_softc *sc); 114 static void twe_clear_pci_parity_error(struct twe_softc *sc); 115 116 static int twe_add_unit(struct twe_softc *, int); 117 static int twe_del_unit(struct twe_softc *, int); 118 static int twe_init_connection(struct twe_softc *); 119 120 static inline u_int32_t twe_inl(struct twe_softc *, int); 121 static inline void twe_outl(struct twe_softc *, int, u_int32_t); 122 123 extern struct cfdriver twe_cd; 124 125 CFATTACH_DECL_NEW(twe, sizeof(struct twe_softc), 126 twe_match, twe_attach, NULL, NULL); 127 128 /* FreeBSD driver revision for sysctl expected by the 3ware cli */ 129 const char twever[] = "1.50.01.002"; 130 131 /* 132 * Tables to convert numeric codes to strings. 133 */ 134 const struct twe_code_table twe_table_status[] = { 135 { 0x00, "successful completion" }, 136 137 /* info */ 138 { 0x42, "command in progress" }, 139 { 0x6c, "retrying interface CRC error from UDMA command" }, 140 141 /* warning */ 142 { 0x81, "redundant/inconsequential request ignored" }, 143 { 0x8e, "failed to write zeroes to LBA 0" }, 144 { 0x8f, "failed to profile TwinStor zones" }, 145 146 /* fatal */ 147 { 0xc1, "aborted due to system command or reconfiguration" }, 148 { 0xc4, "aborted" }, 149 { 0xc5, "access error" }, 150 { 0xc6, "access violation" }, 151 { 0xc7, "device failure" }, /* high byte may be port # */ 152 { 0xc8, "controller error" }, 153 { 0xc9, "timed out" }, 154 { 0xcb, "invalid unit number" }, 155 { 0xcf, "unit not available" }, 156 { 0xd2, "undefined opcode" }, 157 { 0xdb, "request incompatible with unit" }, 158 { 0xdc, "invalid request" }, 159 { 0xff, "firmware error, reset requested" }, 160 161 { 0, NULL } 162 }; 163 164 const struct twe_code_table twe_table_unitstate[] = { 165 { TWE_PARAM_UNITSTATUS_Normal, "Normal" }, 166 { TWE_PARAM_UNITSTATUS_Initialising, "Initializing" }, 167 { TWE_PARAM_UNITSTATUS_Degraded, "Degraded" }, 168 { TWE_PARAM_UNITSTATUS_Rebuilding, "Rebuilding" }, 169 { TWE_PARAM_UNITSTATUS_Verifying, "Verifying" }, 170 { TWE_PARAM_UNITSTATUS_Corrupt, "Corrupt" }, 171 { TWE_PARAM_UNITSTATUS_Missing, "Missing" }, 172 173 { 0, NULL } 174 }; 175 176 const struct twe_code_table twe_table_unittype[] = { 177 /* array descriptor configuration */ 178 { TWE_AD_CONFIG_RAID0, "RAID0" }, 179 { TWE_AD_CONFIG_RAID1, "RAID1" }, 180 { TWE_AD_CONFIG_TwinStor, "TwinStor" }, 181 { TWE_AD_CONFIG_RAID5, "RAID5" }, 182 { TWE_AD_CONFIG_RAID10, "RAID10" }, 183 { TWE_UD_CONFIG_JBOD, "JBOD" }, 184 185 { 0, NULL } 186 }; 187 188 const struct twe_code_table twe_table_stripedepth[] = { 189 { TWE_AD_STRIPE_4k, "4K" }, 190 { TWE_AD_STRIPE_8k, "8K" }, 191 { TWE_AD_STRIPE_16k, "16K" }, 192 { TWE_AD_STRIPE_32k, "32K" }, 193 { TWE_AD_STRIPE_64k, "64K" }, 194 { TWE_AD_STRIPE_128k, "128K" }, 195 { TWE_AD_STRIPE_256k, "256K" }, 196 { TWE_AD_STRIPE_512k, "512K" }, 197 { TWE_AD_STRIPE_1024k, "1024K" }, 198 199 { 0, NULL } 200 }; 201 202 /* 203 * Asynchronous event notification messages are qualified: 204 * a - not unit/port specific 205 * u - unit specific 206 * p - port specific 207 * 208 * They are further qualified with a severity: 209 * E - LOG_EMERG 210 * a - LOG_ALERT 211 * c - LOG_CRIT 212 * e - LOG_ERR 213 * w - LOG_WARNING 214 * n - LOG_NOTICE 215 * i - LOG_INFO 216 * d - LOG_DEBUG 217 * blank - just use printf 218 */ 219 const struct twe_code_table twe_table_aen[] = { 220 { 0x00, "a queue empty" }, 221 { 0x01, "a soft reset" }, 222 { 0x02, "uc degraded mode" }, 223 { 0x03, "aa controller error" }, 224 { 0x04, "uE rebuild fail" }, 225 { 0x05, "un rebuild done" }, 226 { 0x06, "ue incomplete unit" }, 227 { 0x07, "un initialization done" }, 228 { 0x08, "uw unclean shutdown detected" }, 229 { 0x09, "pe drive timeout" }, 230 { 0x0a, "pc drive error" }, 231 { 0x0b, "un rebuild started" }, 232 { 0x0c, "un initialization started" }, 233 { 0x0d, "ui logical unit deleted" }, 234 { 0x0f, "pc SMART threshold exceeded" }, 235 { 0x15, "a table undefined" }, /* XXX: Not in FreeBSD's table */ 236 { 0x21, "pe ATA UDMA downgrade" }, 237 { 0x22, "pi ATA UDMA upgrade" }, 238 { 0x23, "pw sector repair occurred" }, 239 { 0x24, "aa SBUF integrity check failure" }, 240 { 0x25, "pa lost cached write" }, 241 { 0x26, "pa drive ECC error detected" }, 242 { 0x27, "pe DCB checksum error" }, 243 { 0x28, "pn DCB unsupported version" }, 244 { 0x29, "ui verify started" }, 245 { 0x2a, "ua verify failed" }, 246 { 0x2b, "ui verify complete" }, 247 { 0x2c, "pw overwrote bad sector during rebuild" }, 248 { 0x2d, "pa encountered bad sector during rebuild" }, 249 { 0x2e, "pe replacement drive too small" }, 250 { 0x2f, "ue array not previously initialized" }, 251 { 0x30, "p drive not supported" }, 252 { 0xff, "a aen queue full" }, 253 254 { 0, NULL }, 255 }; 256 257 const char * 258 twe_describe_code(const struct twe_code_table *table, uint32_t code) 259 { 260 261 for (; table->string != NULL; table++) { 262 if (table->code == code) 263 return (table->string); 264 } 265 return (NULL); 266 } 267 268 static inline u_int32_t 269 twe_inl(struct twe_softc *sc, int off) 270 { 271 272 bus_space_barrier(sc->sc_iot, sc->sc_ioh, off, 4, 273 BUS_SPACE_BARRIER_WRITE | BUS_SPACE_BARRIER_READ); 274 return (bus_space_read_4(sc->sc_iot, sc->sc_ioh, off)); 275 } 276 277 static inline void 278 twe_outl(struct twe_softc *sc, int off, u_int32_t val) 279 { 280 281 bus_space_write_4(sc->sc_iot, sc->sc_ioh, off, val); 282 bus_space_barrier(sc->sc_iot, sc->sc_ioh, off, 4, 283 BUS_SPACE_BARRIER_WRITE); 284 } 285 286 /* 287 * Match a supported board. 288 */ 289 static int 290 twe_match(device_t parent, cfdata_t cfdata, void *aux) 291 { 292 struct pci_attach_args *pa; 293 294 pa = aux; 295 296 return (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_3WARE && 297 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_ESCALADE || 298 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_3WARE_ESCALADE_ASIC)); 299 } 300 301 /* 302 * Attach a supported board. 303 * 304 * XXX This doesn't fail gracefully. 305 */ 306 static void 307 twe_attach(device_t parent, device_t self, void *aux) 308 { 309 struct pci_attach_args *pa; 310 struct twe_softc *sc; 311 pci_chipset_tag_t pc; 312 pci_intr_handle_t ih; 313 pcireg_t csr; 314 const char *intrstr; 315 int s, size, i, rv, rseg; 316 size_t max_segs, max_xfer; 317 bus_dma_segment_t seg; 318 const struct sysctlnode *node; 319 struct twe_cmd *tc; 320 struct twe_ccb *ccb; 321 322 sc = device_private(self); 323 sc->sc_dev = self; 324 pa = aux; 325 pc = pa->pa_pc; 326 sc->sc_dmat = pa->pa_dmat; 327 SIMPLEQ_INIT(&sc->sc_ccb_queue); 328 SLIST_INIT(&sc->sc_ccb_freelist); 329 330 aprint_naive(": RAID controller\n"); 331 aprint_normal(": 3ware Escalade\n"); 332 333 334 if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, 335 &sc->sc_iot, &sc->sc_ioh, NULL, NULL)) { 336 aprint_error_dev(self, "can't map i/o space\n"); 337 return; 338 } 339 340 /* Enable the device. */ 341 csr = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 342 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 343 csr | PCI_COMMAND_MASTER_ENABLE); 344 345 /* Map and establish the interrupt. */ 346 if (pci_intr_map(pa, &ih)) { 347 aprint_error_dev(self, "can't map interrupt\n"); 348 return; 349 } 350 351 intrstr = pci_intr_string(pc, ih); 352 sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, twe_intr, sc); 353 if (sc->sc_ih == NULL) { 354 aprint_error_dev(self, "can't establish interrupt%s%s\n", 355 (intrstr) ? " at " : "", 356 (intrstr) ? intrstr : ""); 357 return; 358 } 359 360 if (intrstr != NULL) 361 aprint_normal_dev(self, "interrupting at %s\n", 362 intrstr); 363 364 /* 365 * Allocate and initialise the command blocks and CCBs. 366 */ 367 size = sizeof(struct twe_cmd) * TWE_MAX_QUEUECNT; 368 369 if ((rv = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &seg, 1, 370 &rseg, BUS_DMA_NOWAIT)) != 0) { 371 aprint_error_dev(self, "unable to allocate commands, rv = %d\n", rv); 372 return; 373 } 374 375 if ((rv = bus_dmamem_map(sc->sc_dmat, &seg, rseg, size, 376 (void **)&sc->sc_cmds, 377 BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) { 378 aprint_error_dev(self, "unable to map commands, rv = %d\n", rv); 379 return; 380 } 381 382 if ((rv = bus_dmamap_create(sc->sc_dmat, size, size, 1, 0, 383 BUS_DMA_NOWAIT, &sc->sc_dmamap)) != 0) { 384 aprint_error_dev(self, "unable to create command DMA map, rv = %d\n", rv); 385 return; 386 } 387 388 if ((rv = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap, sc->sc_cmds, 389 size, NULL, BUS_DMA_NOWAIT)) != 0) { 390 aprint_error_dev(self, "unable to load command DMA map, rv = %d\n", rv); 391 return; 392 } 393 394 ccb = malloc(sizeof(*ccb) * TWE_MAX_QUEUECNT, M_DEVBUF, M_NOWAIT); 395 if (ccb == NULL) { 396 aprint_error_dev(self, "unable to allocate memory for ccbs\n"); 397 return; 398 } 399 400 sc->sc_cmds_paddr = sc->sc_dmamap->dm_segs[0].ds_addr; 401 memset(sc->sc_cmds, 0, size); 402 403 sc->sc_ccbs = ccb; 404 tc = (struct twe_cmd *)sc->sc_cmds; 405 max_segs = twe_get_maxsegs(); 406 max_xfer = twe_get_maxxfer(max_segs); 407 408 for (i = 0; i < TWE_MAX_QUEUECNT; i++, tc++, ccb++) { 409 ccb->ccb_cmd = tc; 410 ccb->ccb_cmdid = i; 411 ccb->ccb_flags = 0; 412 rv = bus_dmamap_create(sc->sc_dmat, max_xfer, 413 max_segs, PAGE_SIZE, 0, 414 BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, 415 &ccb->ccb_dmamap_xfer); 416 if (rv != 0) { 417 aprint_error_dev(self, "can't create dmamap, rv = %d\n", rv); 418 return; 419 } 420 421 /* Save the first CCB for AEN retrieval. */ 422 if (i != 0) 423 SLIST_INSERT_HEAD(&sc->sc_ccb_freelist, ccb, 424 ccb_chain.slist); 425 } 426 427 /* Wait for the controller to become ready. */ 428 if (twe_status_wait(sc, TWE_STS_MICROCONTROLLER_READY, 6)) { 429 aprint_error_dev(self, "microcontroller not ready\n"); 430 return; 431 } 432 433 twe_outl(sc, TWE_REG_CTL, TWE_CTL_DISABLE_INTRS); 434 435 /* Reset the controller. */ 436 s = splbio(); 437 rv = twe_reset(sc); 438 splx(s); 439 if (rv) { 440 aprint_error_dev(self, "reset failed\n"); 441 return; 442 } 443 444 /* Initialise connection with controller. */ 445 twe_init_connection(sc); 446 447 twe_describe_controller(sc); 448 449 /* Find and attach RAID array units. */ 450 sc->sc_nunits = 0; 451 for (i = 0; i < TWE_MAX_UNITS; i++) 452 (void) twe_add_unit(sc, i); 453 454 /* ...and finally, enable interrupts. */ 455 twe_outl(sc, TWE_REG_CTL, TWE_CTL_CLEAR_ATTN_INTR | 456 TWE_CTL_UNMASK_RESP_INTR | 457 TWE_CTL_ENABLE_INTRS); 458 459 /* sysctl set-up for 3ware cli */ 460 if (sysctl_createv(NULL, 0, NULL, &node, 461 0, CTLTYPE_NODE, device_xname(self), 462 SYSCTL_DESCR("twe driver information"), 463 NULL, 0, NULL, 0, 464 CTL_HW, CTL_CREATE, CTL_EOL) != 0) { 465 aprint_error_dev(self, "could not create %s.%s sysctl node\n", 466 "hw", device_xname(self)); 467 return; 468 } 469 if ((i = sysctl_createv(NULL, 0, NULL, NULL, 470 0, CTLTYPE_STRING, "driver_version", 471 SYSCTL_DESCR("twe0 driver version"), 472 NULL, 0, __UNCONST(&twever), 0, 473 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 474 != 0) { 475 aprint_error_dev(self, "could not create %s.%s.driver_version sysctl\n", 476 "hw", device_xname(self)); 477 return; 478 } 479 } 480 481 void 482 twe_register_callbacks(struct twe_softc *sc, int unit, 483 const struct twe_callbacks *tcb) 484 { 485 486 sc->sc_units[unit].td_callbacks = tcb; 487 } 488 489 static void 490 twe_recompute_openings(struct twe_softc *sc) 491 { 492 struct twe_drive *td; 493 int unit, openings; 494 495 if (sc->sc_nunits != 0) 496 openings = (TWE_MAX_QUEUECNT - 1) / sc->sc_nunits; 497 else 498 openings = 0; 499 if (openings == sc->sc_openings) 500 return; 501 sc->sc_openings = openings; 502 503 #ifdef TWE_DEBUG 504 printf("%s: %d array%s, %d openings per array\n", 505 device_xname(sc->sc_dev), sc->sc_nunits, 506 sc->sc_nunits == 1 ? "" : "s", sc->sc_openings); 507 #endif 508 509 for (unit = 0; unit < TWE_MAX_UNITS; unit++) { 510 td = &sc->sc_units[unit]; 511 if (td->td_dev != NULL) 512 (*td->td_callbacks->tcb_openings)(td->td_dev, 513 sc->sc_openings); 514 } 515 } 516 517 static int 518 twe_add_unit(struct twe_softc *sc, int unit) 519 { 520 struct twe_param *dtp, *atp; 521 struct twe_array_descriptor *ad; 522 struct twe_drive *td; 523 struct twe_attach_args twea; 524 uint32_t newsize; 525 int rv; 526 uint16_t dsize; 527 uint8_t newtype, newstripe; 528 int locs[TWECF_NLOCS]; 529 530 if (unit < 0 || unit >= TWE_MAX_UNITS) 531 return (EINVAL); 532 533 /* Find attached units. */ 534 rv = twe_param_get(sc, TWE_PARAM_UNITSUMMARY, 535 TWE_PARAM_UNITSUMMARY_Status, TWE_MAX_UNITS, NULL, &dtp); 536 if (rv != 0) { 537 aprint_error_dev(sc->sc_dev, "error %d fetching unit summary\n", 538 rv); 539 return (rv); 540 } 541 542 /* For each detected unit, collect size and store in an array. */ 543 td = &sc->sc_units[unit]; 544 545 /* Unit present? */ 546 if ((dtp->tp_data[unit] & TWE_PARAM_UNITSTATUS_Online) == 0) { 547 /* 548 * XXX Should we check to see if a device has been 549 * XXX attached at this index and detach it if it 550 * XXX has? ("rescan" semantics) 551 */ 552 rv = 0; 553 goto out; 554 } 555 556 rv = twe_param_get_2(sc, TWE_PARAM_UNITINFO + unit, 557 TWE_PARAM_UNITINFO_DescriptorSize, &dsize); 558 if (rv != 0) { 559 aprint_error_dev(sc->sc_dev, "error %d fetching descriptor size " 560 "for unit %d\n", rv, unit); 561 goto out; 562 } 563 564 rv = twe_param_get(sc, TWE_PARAM_UNITINFO + unit, 565 TWE_PARAM_UNITINFO_Descriptor, dsize - 3, NULL, &atp); 566 if (rv != 0) { 567 aprint_error_dev(sc->sc_dev, "error %d fetching array descriptor " 568 "for unit %d\n", rv, unit); 569 goto out; 570 } 571 572 ad = (struct twe_array_descriptor *)atp->tp_data; 573 newtype = ad->configuration; 574 newstripe = ad->stripe_size; 575 free(atp, M_DEVBUF); 576 577 rv = twe_param_get_4(sc, TWE_PARAM_UNITINFO + unit, 578 TWE_PARAM_UNITINFO_Capacity, &newsize); 579 if (rv != 0) { 580 aprint_error_dev(sc->sc_dev, 581 "error %d fetching capacity for unit %d\n", 582 rv, unit); 583 goto out; 584 } 585 586 /* 587 * Have a device, so we need to attach it. If there is currently 588 * something sitting at the slot, and the parameters are different, 589 * then we detach the old device before attaching the new one. 590 */ 591 if (td->td_dev != NULL && 592 td->td_size == newsize && 593 td->td_type == newtype && 594 td->td_stripe == newstripe) { 595 /* Same as the old device; just keep using it. */ 596 rv = 0; 597 goto out; 598 } else if (td->td_dev != NULL) { 599 /* Detach the old device first. */ 600 (void) config_detach(td->td_dev, DETACH_FORCE); 601 td->td_dev = NULL; 602 } else if (td->td_size == 0) 603 sc->sc_nunits++; 604 605 /* 606 * Committed to the new array unit; assign its parameters and 607 * recompute the number of available command openings. 608 */ 609 td->td_size = newsize; 610 td->td_type = newtype; 611 td->td_stripe = newstripe; 612 twe_recompute_openings(sc); 613 614 twea.twea_unit = unit; 615 616 locs[TWECF_UNIT] = unit; 617 618 td->td_dev = config_found_sm_loc(sc->sc_dev, "twe", locs, &twea, 619 twe_print, config_stdsubmatch); 620 621 rv = 0; 622 out: 623 free(dtp, M_DEVBUF); 624 return (rv); 625 } 626 627 static int 628 twe_del_unit(struct twe_softc *sc, int unit) 629 { 630 struct twe_drive *td; 631 632 if (unit < 0 || unit >= TWE_MAX_UNITS) 633 return (EINVAL); 634 635 td = &sc->sc_units[unit]; 636 if (td->td_size != 0) 637 sc->sc_nunits--; 638 td->td_size = 0; 639 td->td_type = 0; 640 td->td_stripe = 0; 641 if (td->td_dev != NULL) { 642 (void) config_detach(td->td_dev, DETACH_FORCE); 643 td->td_dev = NULL; 644 } 645 twe_recompute_openings(sc); 646 return (0); 647 } 648 649 /* 650 * Reset the controller. 651 * MUST BE CALLED AT splbio()! 652 */ 653 static int 654 twe_reset(struct twe_softc *sc) 655 { 656 uint16_t aen; 657 u_int status; 658 int got, rv; 659 660 /* Issue a soft reset. */ 661 twe_outl(sc, TWE_REG_CTL, TWE_CTL_ISSUE_SOFT_RESET | 662 TWE_CTL_CLEAR_HOST_INTR | 663 TWE_CTL_CLEAR_ATTN_INTR | 664 TWE_CTL_MASK_CMD_INTR | 665 TWE_CTL_MASK_RESP_INTR | 666 TWE_CTL_CLEAR_ERROR_STS | 667 TWE_CTL_DISABLE_INTRS); 668 669 /* Wait for attention... */ 670 if (twe_status_wait(sc, TWE_STS_ATTN_INTR, 30)) { 671 aprint_error_dev(sc->sc_dev, "timeout waiting for attention interrupt\n"); 672 return (-1); 673 } 674 675 /* ...and ACK it. */ 676 twe_outl(sc, TWE_REG_CTL, TWE_CTL_CLEAR_ATTN_INTR); 677 678 /* 679 * Pull AENs out of the controller; look for a soft reset AEN. 680 * Open code this, since we want to detect reset even if the 681 * queue for management tools is full. 682 * 683 * Note that since: 684 * - interrupts are blocked 685 * - we have reset the controller 686 * - acknowledged the pending ATTENTION 687 * that there is no way a pending asynchronous AEN fetch would 688 * finish, so clear the flag. 689 */ 690 sc->sc_flags &= ~TWEF_AEN; 691 for (got = 0;;) { 692 rv = twe_aen_get(sc, &aen); 693 if (rv != 0) 694 printf("%s: error %d while draining event queue\n", 695 device_xname(sc->sc_dev), rv); 696 if (TWE_AEN_CODE(aen) == TWE_AEN_QUEUE_EMPTY) 697 break; 698 if (TWE_AEN_CODE(aen) == TWE_AEN_SOFT_RESET) 699 got = 1; 700 twe_aen_enqueue(sc, aen, 1); 701 } 702 703 if (!got) { 704 printf("%s: reset not reported\n", device_xname(sc->sc_dev)); 705 return (-1); 706 } 707 708 /* Check controller status. */ 709 status = twe_inl(sc, TWE_REG_STS); 710 if (twe_status_check(sc, status)) { 711 printf("%s: controller errors detected\n", 712 device_xname(sc->sc_dev)); 713 return (-1); 714 } 715 716 /* Drain the response queue. */ 717 for (;;) { 718 status = twe_inl(sc, TWE_REG_STS); 719 if (twe_status_check(sc, status) != 0) { 720 aprint_error_dev(sc->sc_dev, "can't drain response queue\n"); 721 return (-1); 722 } 723 if ((status & TWE_STS_RESP_QUEUE_EMPTY) != 0) 724 break; 725 (void)twe_inl(sc, TWE_REG_RESP_QUEUE); 726 } 727 728 return (0); 729 } 730 731 /* 732 * Print autoconfiguration message for a sub-device. 733 */ 734 static int 735 twe_print(void *aux, const char *pnp) 736 { 737 struct twe_attach_args *twea; 738 739 twea = aux; 740 741 if (pnp != NULL) 742 aprint_normal("block device at %s", pnp); 743 aprint_normal(" unit %d", twea->twea_unit); 744 return (UNCONF); 745 } 746 747 /* 748 * Interrupt service routine. 749 */ 750 static int 751 twe_intr(void *arg) 752 { 753 struct twe_softc *sc; 754 u_int status; 755 int caught, rv; 756 757 sc = arg; 758 caught = 0; 759 status = twe_inl(sc, TWE_REG_STS); 760 twe_status_check(sc, status); 761 762 /* Host interrupts - purpose unknown. */ 763 if ((status & TWE_STS_HOST_INTR) != 0) { 764 #ifdef DEBUG 765 printf("%s: host interrupt\n", device_xname(sc->sc_dev)); 766 #endif 767 twe_outl(sc, TWE_REG_CTL, TWE_CTL_CLEAR_HOST_INTR); 768 caught = 1; 769 } 770 771 /* 772 * Attention interrupts, signalled when a controller or child device 773 * state change has occurred. 774 */ 775 if ((status & TWE_STS_ATTN_INTR) != 0) { 776 rv = twe_aen_get(sc, NULL); 777 if (rv != 0) 778 aprint_error_dev(sc->sc_dev, "unable to retrieve AEN (%d)\n", rv); 779 else 780 twe_outl(sc, TWE_REG_CTL, TWE_CTL_CLEAR_ATTN_INTR); 781 caught = 1; 782 } 783 784 /* 785 * Command interrupts, signalled when the controller can accept more 786 * commands. We don't use this; instead, we try to submit commands 787 * when we receive them, and when other commands have completed. 788 * Mask it so we don't get another one. 789 */ 790 if ((status & TWE_STS_CMD_INTR) != 0) { 791 #ifdef DEBUG 792 printf("%s: command interrupt\n", device_xname(sc->sc_dev)); 793 #endif 794 twe_outl(sc, TWE_REG_CTL, TWE_CTL_MASK_CMD_INTR); 795 caught = 1; 796 } 797 798 if ((status & TWE_STS_RESP_INTR) != 0) { 799 twe_poll(sc); 800 caught = 1; 801 } 802 803 return (caught); 804 } 805 806 /* 807 * Fetch an AEN. Even though this is really like parameter 808 * retrieval, we handle this specially, because we issue this 809 * AEN retrieval command from interrupt context, and thus 810 * reserve a CCB for it to avoid resource shortage. 811 * 812 * XXX There are still potential resource shortages we could 813 * XXX encounter. Consider pre-allocating all AEN-related 814 * XXX resources. 815 * 816 * MUST BE CALLED AT splbio()! 817 */ 818 static int 819 twe_aen_get(struct twe_softc *sc, uint16_t *aenp) 820 { 821 struct twe_ccb *ccb; 822 struct twe_cmd *tc; 823 struct twe_param *tp; 824 int rv; 825 826 /* 827 * If we're already retrieving an AEN, just wait; another 828 * retrieval will be chained after the current one completes. 829 */ 830 if (sc->sc_flags & TWEF_AEN) { 831 /* 832 * It is a fatal software programming error to attempt 833 * to fetch an AEN synchronously when an AEN fetch is 834 * already pending. 835 */ 836 KASSERT(aenp == NULL); 837 return (0); 838 } 839 840 tp = malloc(TWE_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 841 if (tp == NULL) 842 return (ENOMEM); 843 844 ccb = twe_ccb_alloc(sc, 845 TWE_CCB_AEN | TWE_CCB_DATA_IN | TWE_CCB_DATA_OUT); 846 KASSERT(ccb != NULL); 847 848 ccb->ccb_data = tp; 849 ccb->ccb_datasize = TWE_SECTOR_SIZE; 850 ccb->ccb_tx.tx_handler = (aenp == NULL) ? twe_aen_handler : NULL; 851 ccb->ccb_tx.tx_context = tp; 852 ccb->ccb_tx.tx_dv = sc->sc_dev; 853 854 tc = ccb->ccb_cmd; 855 tc->tc_size = 2; 856 tc->tc_opcode = TWE_OP_GET_PARAM | (tc->tc_size << 5); 857 tc->tc_unit = 0; 858 tc->tc_count = htole16(1); 859 860 /* Fill in the outbound parameter data. */ 861 tp->tp_table_id = htole16(TWE_PARAM_AEN); 862 tp->tp_param_id = TWE_PARAM_AEN_UnitCode; 863 tp->tp_param_size = 2; 864 865 /* Map the transfer. */ 866 if ((rv = twe_ccb_map(sc, ccb)) != 0) { 867 twe_ccb_free(sc, ccb); 868 goto done; 869 } 870 871 /* Enqueue the command and wait. */ 872 if (aenp != NULL) { 873 rv = twe_ccb_poll(sc, ccb, 5); 874 twe_ccb_unmap(sc, ccb); 875 twe_ccb_free(sc, ccb); 876 if (rv == 0) 877 *aenp = le16toh(*(uint16_t *)tp->tp_data); 878 free(tp, M_DEVBUF); 879 } else { 880 sc->sc_flags |= TWEF_AEN; 881 twe_ccb_enqueue(sc, ccb); 882 rv = 0; 883 } 884 885 done: 886 return (rv); 887 } 888 889 /* 890 * Handle an AEN returned by the controller. 891 * MUST BE CALLED AT splbio()! 892 */ 893 static void 894 twe_aen_handler(struct twe_ccb *ccb, int error) 895 { 896 struct twe_softc *sc; 897 struct twe_param *tp; 898 uint16_t aen; 899 int rv; 900 901 sc = device_private(ccb->ccb_tx.tx_dv); 902 tp = ccb->ccb_tx.tx_context; 903 twe_ccb_unmap(sc, ccb); 904 905 sc->sc_flags &= ~TWEF_AEN; 906 907 if (error) { 908 aprint_error_dev(sc->sc_dev, "error retrieving AEN\n"); 909 aen = TWE_AEN_QUEUE_EMPTY; 910 } else 911 aen = le16toh(*(u_int16_t *)tp->tp_data); 912 free(tp, M_DEVBUF); 913 twe_ccb_free(sc, ccb); 914 915 if (TWE_AEN_CODE(aen) == TWE_AEN_QUEUE_EMPTY) { 916 twe_outl(sc, TWE_REG_CTL, TWE_CTL_CLEAR_ATTN_INTR); 917 return; 918 } 919 920 twe_aen_enqueue(sc, aen, 0); 921 922 /* 923 * Chain another retrieval in case interrupts have been 924 * coalesced. 925 */ 926 rv = twe_aen_get(sc, NULL); 927 if (rv != 0) 928 aprint_error_dev(sc->sc_dev, "unable to retrieve AEN (%d)\n", rv); 929 } 930 931 static void 932 twe_aen_enqueue(struct twe_softc *sc, uint16_t aen, int quiet) 933 { 934 const char *str, *msg; 935 int s, next, nextnext, level; 936 937 /* 938 * First report the AEN on the console. Maybe. 939 */ 940 if (! quiet) { 941 str = twe_describe_code(twe_table_aen, TWE_AEN_CODE(aen)); 942 if (str == NULL) { 943 aprint_error_dev(sc->sc_dev, "unknown AEN 0x%04x\n", aen); 944 } else { 945 msg = str + 3; 946 switch (str[1]) { 947 case 'E': level = LOG_EMERG; break; 948 case 'a': level = LOG_ALERT; break; 949 case 'c': level = LOG_CRIT; break; 950 case 'e': level = LOG_ERR; break; 951 case 'w': level = LOG_WARNING; break; 952 case 'n': level = LOG_NOTICE; break; 953 case 'i': level = LOG_INFO; break; 954 case 'd': level = LOG_DEBUG; break; 955 default: 956 /* Don't use syslog. */ 957 level = -1; 958 } 959 960 if (level < 0) { 961 switch (str[0]) { 962 case 'u': 963 case 'p': 964 printf("%s: %s %d: %s\n", 965 device_xname(sc->sc_dev), 966 str[0] == 'u' ? "unit" : "port", 967 TWE_AEN_UNIT(aen), msg); 968 break; 969 970 default: 971 printf("%s: %s\n", 972 device_xname(sc->sc_dev), msg); 973 } 974 } else { 975 switch (str[0]) { 976 case 'u': 977 case 'p': 978 log(level, "%s: %s %d: %s\n", 979 device_xname(sc->sc_dev), 980 str[0] == 'u' ? "unit" : "port", 981 TWE_AEN_UNIT(aen), msg); 982 break; 983 984 default: 985 log(level, "%s: %s\n", 986 device_xname(sc->sc_dev), msg); 987 } 988 } 989 } 990 } 991 992 /* Now enqueue the AEN for mangement tools. */ 993 s = splbio(); 994 995 next = (sc->sc_aen_head + 1) % TWE_AEN_Q_LENGTH; 996 nextnext = (sc->sc_aen_head + 2) % TWE_AEN_Q_LENGTH; 997 998 /* 999 * If this is the last free slot, then queue up a "queue 1000 * full" message. 1001 */ 1002 if (nextnext == sc->sc_aen_tail) 1003 aen = TWE_AEN_QUEUE_FULL; 1004 1005 if (next != sc->sc_aen_tail) { 1006 sc->sc_aen_queue[sc->sc_aen_head] = aen; 1007 sc->sc_aen_head = next; 1008 } 1009 1010 if (sc->sc_flags & TWEF_AENQ_WAIT) { 1011 sc->sc_flags &= ~TWEF_AENQ_WAIT; 1012 wakeup(&sc->sc_aen_queue); 1013 } 1014 1015 splx(s); 1016 } 1017 1018 /* NOTE: Must be called at splbio(). */ 1019 static uint16_t 1020 twe_aen_dequeue(struct twe_softc *sc) 1021 { 1022 uint16_t aen; 1023 1024 if (sc->sc_aen_tail == sc->sc_aen_head) 1025 aen = TWE_AEN_QUEUE_EMPTY; 1026 else { 1027 aen = sc->sc_aen_queue[sc->sc_aen_tail]; 1028 sc->sc_aen_tail = (sc->sc_aen_tail + 1) % TWE_AEN_Q_LENGTH; 1029 } 1030 1031 return (aen); 1032 } 1033 1034 /* 1035 * These are short-hand functions that execute TWE_OP_GET_PARAM to 1036 * fetch 1, 2, and 4 byte parameter values, respectively. 1037 */ 1038 int 1039 twe_param_get_1(struct twe_softc *sc, int table_id, int param_id, 1040 uint8_t *valp) 1041 { 1042 struct twe_param *tp; 1043 int rv; 1044 1045 rv = twe_param_get(sc, table_id, param_id, 1, NULL, &tp); 1046 if (rv != 0) 1047 return (rv); 1048 *valp = *(uint8_t *)tp->tp_data; 1049 free(tp, M_DEVBUF); 1050 return (0); 1051 } 1052 1053 int 1054 twe_param_get_2(struct twe_softc *sc, int table_id, int param_id, 1055 uint16_t *valp) 1056 { 1057 struct twe_param *tp; 1058 int rv; 1059 1060 rv = twe_param_get(sc, table_id, param_id, 2, NULL, &tp); 1061 if (rv != 0) 1062 return (rv); 1063 *valp = le16toh(*(uint16_t *)tp->tp_data); 1064 free(tp, M_DEVBUF); 1065 return (0); 1066 } 1067 1068 int 1069 twe_param_get_4(struct twe_softc *sc, int table_id, int param_id, 1070 uint32_t *valp) 1071 { 1072 struct twe_param *tp; 1073 int rv; 1074 1075 rv = twe_param_get(sc, table_id, param_id, 4, NULL, &tp); 1076 if (rv != 0) 1077 return (rv); 1078 *valp = le32toh(*(uint32_t *)tp->tp_data); 1079 free(tp, M_DEVBUF); 1080 return (0); 1081 } 1082 1083 /* 1084 * Execute a TWE_OP_GET_PARAM command. If a callback function is provided, 1085 * it will be called with generated context when the command has completed. 1086 * If no callback is provided, the command will be executed synchronously 1087 * and a pointer to a buffer containing the data returned. 1088 * 1089 * The caller or callback is responsible for freeing the buffer. 1090 * 1091 * NOTE: We assume we can sleep here to wait for a CCB to become available. 1092 */ 1093 int 1094 twe_param_get(struct twe_softc *sc, int table_id, int param_id, size_t size, 1095 void (*func)(struct twe_ccb *, int), struct twe_param **pbuf) 1096 { 1097 struct twe_ccb *ccb; 1098 struct twe_cmd *tc; 1099 struct twe_param *tp; 1100 int rv, s; 1101 1102 tp = malloc(TWE_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 1103 if (tp == NULL) 1104 return ENOMEM; 1105 1106 ccb = twe_ccb_alloc_wait(sc, TWE_CCB_DATA_IN | TWE_CCB_DATA_OUT); 1107 KASSERT(ccb != NULL); 1108 1109 ccb->ccb_data = tp; 1110 ccb->ccb_datasize = TWE_SECTOR_SIZE; 1111 ccb->ccb_tx.tx_handler = func; 1112 ccb->ccb_tx.tx_context = tp; 1113 ccb->ccb_tx.tx_dv = sc->sc_dev; 1114 1115 tc = ccb->ccb_cmd; 1116 tc->tc_size = 2; 1117 tc->tc_opcode = TWE_OP_GET_PARAM | (tc->tc_size << 5); 1118 tc->tc_unit = 0; 1119 tc->tc_count = htole16(1); 1120 1121 /* Fill in the outbound parameter data. */ 1122 tp->tp_table_id = htole16(table_id); 1123 tp->tp_param_id = param_id; 1124 tp->tp_param_size = size; 1125 1126 /* Map the transfer. */ 1127 if ((rv = twe_ccb_map(sc, ccb)) != 0) { 1128 twe_ccb_free(sc, ccb); 1129 goto done; 1130 } 1131 1132 /* Submit the command and either wait or let the callback handle it. */ 1133 if (func == NULL) { 1134 s = splbio(); 1135 rv = twe_ccb_poll(sc, ccb, 5); 1136 twe_ccb_unmap(sc, ccb); 1137 twe_ccb_free(sc, ccb); 1138 splx(s); 1139 } else { 1140 #ifdef DEBUG 1141 if (pbuf != NULL) 1142 panic("both func and pbuf defined"); 1143 #endif 1144 twe_ccb_enqueue(sc, ccb); 1145 return 0; 1146 } 1147 1148 done: 1149 if (pbuf == NULL || rv != 0) 1150 free(tp, M_DEVBUF); 1151 else if (pbuf != NULL && rv == 0) 1152 *pbuf = tp; 1153 return rv; 1154 } 1155 1156 /* 1157 * Execute a TWE_OP_SET_PARAM command. 1158 * 1159 * NOTE: We assume we can sleep here to wait for a CCB to become available. 1160 */ 1161 static int 1162 twe_param_set(struct twe_softc *sc, int table_id, int param_id, size_t size, 1163 void *sbuf) 1164 { 1165 struct twe_ccb *ccb; 1166 struct twe_cmd *tc; 1167 struct twe_param *tp; 1168 int rv, s; 1169 1170 tp = malloc(TWE_SECTOR_SIZE, M_DEVBUF, M_NOWAIT); 1171 if (tp == NULL) 1172 return ENOMEM; 1173 1174 ccb = twe_ccb_alloc_wait(sc, TWE_CCB_DATA_IN | TWE_CCB_DATA_OUT); 1175 KASSERT(ccb != NULL); 1176 1177 ccb->ccb_data = tp; 1178 ccb->ccb_datasize = TWE_SECTOR_SIZE; 1179 ccb->ccb_tx.tx_handler = 0; 1180 ccb->ccb_tx.tx_context = tp; 1181 ccb->ccb_tx.tx_dv = sc->sc_dev; 1182 1183 tc = ccb->ccb_cmd; 1184 tc->tc_size = 2; 1185 tc->tc_opcode = TWE_OP_SET_PARAM | (tc->tc_size << 5); 1186 tc->tc_unit = 0; 1187 tc->tc_count = htole16(1); 1188 1189 /* Fill in the outbound parameter data. */ 1190 tp->tp_table_id = htole16(table_id); 1191 tp->tp_param_id = param_id; 1192 tp->tp_param_size = size; 1193 memcpy(tp->tp_data, sbuf, size); 1194 1195 /* Map the transfer. */ 1196 if ((rv = twe_ccb_map(sc, ccb)) != 0) { 1197 twe_ccb_free(sc, ccb); 1198 goto done; 1199 } 1200 1201 /* Submit the command and wait. */ 1202 s = splbio(); 1203 rv = twe_ccb_poll(sc, ccb, 5); 1204 twe_ccb_unmap(sc, ccb); 1205 twe_ccb_free(sc, ccb); 1206 splx(s); 1207 done: 1208 free(tp, M_DEVBUF); 1209 return (rv); 1210 } 1211 1212 /* 1213 * Execute a TWE_OP_INIT_CONNECTION command. Return non-zero on error. 1214 * Must be called with interrupts blocked. 1215 */ 1216 static int 1217 twe_init_connection(struct twe_softc *sc) 1218 { 1219 struct twe_ccb *ccb; 1220 struct twe_cmd *tc; 1221 int rv; 1222 1223 if ((ccb = twe_ccb_alloc(sc, 0)) == NULL) 1224 return (EAGAIN); 1225 1226 /* Build the command. */ 1227 tc = ccb->ccb_cmd; 1228 tc->tc_size = 3; 1229 tc->tc_opcode = TWE_OP_INIT_CONNECTION; 1230 tc->tc_unit = 0; 1231 tc->tc_count = htole16(TWE_MAX_CMDS); 1232 tc->tc_args.init_connection.response_queue_pointer = 0; 1233 1234 /* Submit the command for immediate execution. */ 1235 rv = twe_ccb_poll(sc, ccb, 5); 1236 twe_ccb_free(sc, ccb); 1237 return (rv); 1238 } 1239 1240 /* 1241 * Poll the controller for completed commands. Must be called with 1242 * interrupts blocked. 1243 */ 1244 static void 1245 twe_poll(struct twe_softc *sc) 1246 { 1247 struct twe_ccb *ccb; 1248 int found; 1249 u_int status, cmdid; 1250 1251 found = 0; 1252 1253 for (;;) { 1254 status = twe_inl(sc, TWE_REG_STS); 1255 twe_status_check(sc, status); 1256 1257 if ((status & TWE_STS_RESP_QUEUE_EMPTY)) 1258 break; 1259 1260 found = 1; 1261 cmdid = twe_inl(sc, TWE_REG_RESP_QUEUE); 1262 cmdid = (cmdid & TWE_RESP_MASK) >> TWE_RESP_SHIFT; 1263 if (cmdid >= TWE_MAX_QUEUECNT) { 1264 aprint_error_dev(sc->sc_dev, "bad cmdid %d\n", cmdid); 1265 continue; 1266 } 1267 1268 ccb = sc->sc_ccbs + cmdid; 1269 if ((ccb->ccb_flags & TWE_CCB_ACTIVE) == 0) { 1270 printf("%s: CCB for cmdid %d not active\n", 1271 device_xname(sc->sc_dev), cmdid); 1272 continue; 1273 } 1274 ccb->ccb_flags ^= TWE_CCB_COMPLETE | TWE_CCB_ACTIVE; 1275 1276 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1277 (char *)ccb->ccb_cmd - (char *)sc->sc_cmds, 1278 sizeof(struct twe_cmd), 1279 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1280 1281 /* Pass notification to upper layers. */ 1282 if (ccb->ccb_tx.tx_handler != NULL) 1283 (*ccb->ccb_tx.tx_handler)(ccb, 1284 ccb->ccb_cmd->tc_status != 0 ? EIO : 0); 1285 } 1286 1287 /* If any commands have completed, run the software queue. */ 1288 if (found) 1289 twe_ccb_enqueue(sc, NULL); 1290 } 1291 1292 /* 1293 * Wait for `status' to be set in the controller status register. Return 1294 * zero if found, non-zero if the operation timed out. 1295 */ 1296 static int 1297 twe_status_wait(struct twe_softc *sc, u_int32_t status, int timo) 1298 { 1299 1300 for (timo *= 10; timo != 0; timo--) { 1301 if ((twe_inl(sc, TWE_REG_STS) & status) == status) 1302 break; 1303 delay(100000); 1304 } 1305 1306 return (timo == 0); 1307 } 1308 1309 /* 1310 * Clear a PCI parity error. 1311 */ 1312 static void 1313 twe_clear_pci_parity_error(struct twe_softc *sc) 1314 { 1315 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 0x0, TWE_CTL_CLEAR_PARITY_ERROR); 1316 1317 //FreeBSD: pci_write_config(sc->twe_dev, PCIR_STATUS, TWE_PCI_CLEAR_PARITY_ERROR, 2); 1318 } 1319 1320 1321 /* 1322 * Clear a PCI abort. 1323 */ 1324 static void 1325 twe_clear_pci_abort(struct twe_softc *sc) 1326 { 1327 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 0x0, TWE_CTL_CLEAR_PCI_ABORT); 1328 1329 //FreeBSD: pci_write_config(sc->twe_dev, PCIR_STATUS, TWE_PCI_CLEAR_PCI_ABORT, 2); 1330 } 1331 1332 /* 1333 * Complain if the status bits aren't what we expect. 1334 */ 1335 static int 1336 twe_status_check(struct twe_softc *sc, u_int status) 1337 { 1338 int rv; 1339 1340 rv = 0; 1341 1342 if ((status & TWE_STS_EXPECTED_BITS) != TWE_STS_EXPECTED_BITS) { 1343 aprint_error_dev(sc->sc_dev, "missing status bits: 0x%08x\n", 1344 status & ~TWE_STS_EXPECTED_BITS); 1345 rv = -1; 1346 } 1347 1348 if ((status & TWE_STS_UNEXPECTED_BITS) != 0) { 1349 aprint_error_dev(sc->sc_dev, "unexpected status bits: 0x%08x\n", 1350 status & TWE_STS_UNEXPECTED_BITS); 1351 rv = -1; 1352 if (status & TWE_STS_PCI_PARITY_ERROR) { 1353 aprint_error_dev(sc->sc_dev, "PCI parity error: Reseat card, move card " 1354 "or buggy device present.\n"); 1355 twe_clear_pci_parity_error(sc); 1356 } 1357 if (status & TWE_STS_PCI_ABORT) { 1358 aprint_error_dev(sc->sc_dev, "PCI abort, clearing.\n"); 1359 twe_clear_pci_abort(sc); 1360 } 1361 } 1362 1363 return (rv); 1364 } 1365 1366 /* 1367 * Allocate and initialise a CCB. 1368 */ 1369 static inline void 1370 twe_ccb_init(struct twe_softc *sc, struct twe_ccb *ccb, int flags) 1371 { 1372 struct twe_cmd *tc; 1373 1374 ccb->ccb_tx.tx_handler = NULL; 1375 ccb->ccb_flags = flags; 1376 tc = ccb->ccb_cmd; 1377 tc->tc_status = 0; 1378 tc->tc_flags = 0; 1379 tc->tc_cmdid = ccb->ccb_cmdid; 1380 } 1381 1382 struct twe_ccb * 1383 twe_ccb_alloc(struct twe_softc *sc, int flags) 1384 { 1385 struct twe_ccb *ccb; 1386 int s; 1387 1388 s = splbio(); 1389 if (__predict_false((flags & TWE_CCB_AEN) != 0)) { 1390 /* Use the reserved CCB. */ 1391 ccb = sc->sc_ccbs; 1392 } else { 1393 /* Allocate a CCB and command block. */ 1394 if (__predict_false((ccb = 1395 SLIST_FIRST(&sc->sc_ccb_freelist)) == NULL)) { 1396 splx(s); 1397 return (NULL); 1398 } 1399 SLIST_REMOVE_HEAD(&sc->sc_ccb_freelist, ccb_chain.slist); 1400 } 1401 #ifdef DIAGNOSTIC 1402 if ((long)(ccb - sc->sc_ccbs) == 0 && (flags & TWE_CCB_AEN) == 0) 1403 panic("twe_ccb_alloc: got reserved CCB for non-AEN"); 1404 if ((ccb->ccb_flags & TWE_CCB_ALLOCED) != 0) 1405 panic("twe_ccb_alloc: CCB %ld already allocated", 1406 (long)(ccb - sc->sc_ccbs)); 1407 flags |= TWE_CCB_ALLOCED; 1408 #endif 1409 splx(s); 1410 1411 twe_ccb_init(sc, ccb, flags); 1412 return (ccb); 1413 } 1414 1415 struct twe_ccb * 1416 twe_ccb_alloc_wait(struct twe_softc *sc, int flags) 1417 { 1418 struct twe_ccb *ccb; 1419 int s; 1420 1421 KASSERT((flags & TWE_CCB_AEN) == 0); 1422 1423 s = splbio(); 1424 while (__predict_false((ccb = 1425 SLIST_FIRST(&sc->sc_ccb_freelist)) == NULL)) { 1426 sc->sc_flags |= TWEF_WAIT_CCB; 1427 (void) tsleep(&sc->sc_ccb_freelist, PRIBIO, "tweccb", 0); 1428 } 1429 SLIST_REMOVE_HEAD(&sc->sc_ccb_freelist, ccb_chain.slist); 1430 #ifdef DIAGNOSTIC 1431 if ((ccb->ccb_flags & TWE_CCB_ALLOCED) != 0) 1432 panic("twe_ccb_alloc_wait: CCB %ld already allocated", 1433 (long)(ccb - sc->sc_ccbs)); 1434 flags |= TWE_CCB_ALLOCED; 1435 #endif 1436 splx(s); 1437 1438 twe_ccb_init(sc, ccb, flags); 1439 return (ccb); 1440 } 1441 1442 /* 1443 * Free a CCB. 1444 */ 1445 void 1446 twe_ccb_free(struct twe_softc *sc, struct twe_ccb *ccb) 1447 { 1448 int s; 1449 1450 s = splbio(); 1451 if ((ccb->ccb_flags & TWE_CCB_AEN) == 0) { 1452 SLIST_INSERT_HEAD(&sc->sc_ccb_freelist, ccb, ccb_chain.slist); 1453 if (__predict_false((sc->sc_flags & TWEF_WAIT_CCB) != 0)) { 1454 sc->sc_flags &= ~TWEF_WAIT_CCB; 1455 wakeup(&sc->sc_ccb_freelist); 1456 } 1457 } 1458 ccb->ccb_flags = 0; 1459 splx(s); 1460 } 1461 1462 /* 1463 * Map the specified CCB's command block and data buffer (if any) into 1464 * controller visible space. Perform DMA synchronisation. 1465 */ 1466 int 1467 twe_ccb_map(struct twe_softc *sc, struct twe_ccb *ccb) 1468 { 1469 struct twe_cmd *tc; 1470 int flags, nsegs, i, s, rv; 1471 void *data; 1472 1473 /* 1474 * The data as a whole must be 512-byte aligned. 1475 */ 1476 if (((u_long)ccb->ccb_data & (TWE_ALIGNMENT - 1)) != 0) { 1477 s = splvm(); 1478 /* XXX */ 1479 rv = uvm_km_kmem_alloc(kmem_va_arena, 1480 ccb->ccb_datasize, (VM_NOSLEEP | VM_INSTANTFIT), 1481 (vmem_addr_t *)&ccb->ccb_abuf); 1482 splx(s); 1483 data = (void *)ccb->ccb_abuf; 1484 if ((ccb->ccb_flags & TWE_CCB_DATA_OUT) != 0) 1485 memcpy(data, ccb->ccb_data, ccb->ccb_datasize); 1486 } else { 1487 ccb->ccb_abuf = (vaddr_t)0; 1488 data = ccb->ccb_data; 1489 } 1490 1491 /* 1492 * Map the data buffer into bus space and build the S/G list. 1493 */ 1494 rv = bus_dmamap_load(sc->sc_dmat, ccb->ccb_dmamap_xfer, data, 1495 ccb->ccb_datasize, NULL, BUS_DMA_NOWAIT | BUS_DMA_STREAMING | 1496 ((ccb->ccb_flags & TWE_CCB_DATA_IN) ? 1497 BUS_DMA_READ : BUS_DMA_WRITE)); 1498 if (rv != 0) { 1499 if (ccb->ccb_abuf != (vaddr_t)0) { 1500 s = splvm(); 1501 /* XXX */ 1502 uvm_km_kmem_free(kmem_va_arena, ccb->ccb_abuf, 1503 ccb->ccb_datasize); 1504 splx(s); 1505 } 1506 return (rv); 1507 } 1508 1509 nsegs = ccb->ccb_dmamap_xfer->dm_nsegs; 1510 tc = ccb->ccb_cmd; 1511 tc->tc_size += 2 * nsegs; 1512 1513 /* The location of the S/G list is dependent upon command type. */ 1514 switch (tc->tc_opcode >> 5) { 1515 case 2: 1516 for (i = 0; i < nsegs; i++) { 1517 tc->tc_args.param.sgl[i].tsg_address = 1518 htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_addr); 1519 tc->tc_args.param.sgl[i].tsg_length = 1520 htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_len); 1521 } 1522 /* XXX Needed? */ 1523 for (; i < TWE_SG_SIZE; i++) { 1524 tc->tc_args.param.sgl[i].tsg_address = 0; 1525 tc->tc_args.param.sgl[i].tsg_length = 0; 1526 } 1527 break; 1528 case 3: 1529 for (i = 0; i < nsegs; i++) { 1530 tc->tc_args.io.sgl[i].tsg_address = 1531 htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_addr); 1532 tc->tc_args.io.sgl[i].tsg_length = 1533 htole32(ccb->ccb_dmamap_xfer->dm_segs[i].ds_len); 1534 } 1535 /* XXX Needed? */ 1536 for (; i < TWE_SG_SIZE; i++) { 1537 tc->tc_args.io.sgl[i].tsg_address = 0; 1538 tc->tc_args.io.sgl[i].tsg_length = 0; 1539 } 1540 break; 1541 default: 1542 /* 1543 * In all likelihood, this is a command passed from 1544 * management tools in userspace where no S/G list is 1545 * necessary because no data is being passed. 1546 */ 1547 break; 1548 } 1549 1550 if ((ccb->ccb_flags & TWE_CCB_DATA_IN) != 0) 1551 flags = BUS_DMASYNC_PREREAD; 1552 else 1553 flags = 0; 1554 if ((ccb->ccb_flags & TWE_CCB_DATA_OUT) != 0) 1555 flags |= BUS_DMASYNC_PREWRITE; 1556 1557 bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap_xfer, 0, 1558 ccb->ccb_datasize, flags); 1559 return (0); 1560 } 1561 1562 /* 1563 * Unmap the specified CCB's command block and data buffer (if any) and 1564 * perform DMA synchronisation. 1565 */ 1566 void 1567 twe_ccb_unmap(struct twe_softc *sc, struct twe_ccb *ccb) 1568 { 1569 int flags, s; 1570 1571 if ((ccb->ccb_flags & TWE_CCB_DATA_IN) != 0) 1572 flags = BUS_DMASYNC_POSTREAD; 1573 else 1574 flags = 0; 1575 if ((ccb->ccb_flags & TWE_CCB_DATA_OUT) != 0) 1576 flags |= BUS_DMASYNC_POSTWRITE; 1577 1578 bus_dmamap_sync(sc->sc_dmat, ccb->ccb_dmamap_xfer, 0, 1579 ccb->ccb_datasize, flags); 1580 bus_dmamap_unload(sc->sc_dmat, ccb->ccb_dmamap_xfer); 1581 1582 if (ccb->ccb_abuf != (vaddr_t)0) { 1583 if ((ccb->ccb_flags & TWE_CCB_DATA_IN) != 0) 1584 memcpy(ccb->ccb_data, (void *)ccb->ccb_abuf, 1585 ccb->ccb_datasize); 1586 s = splvm(); 1587 /* XXX */ 1588 uvm_km_kmem_free(kmem_va_arena, ccb->ccb_abuf, 1589 ccb->ccb_datasize); 1590 splx(s); 1591 } 1592 } 1593 1594 /* 1595 * Submit a command to the controller and poll on completion. Return 1596 * non-zero on timeout (but don't check status, as some command types don't 1597 * return status). Must be called with interrupts blocked. 1598 */ 1599 int 1600 twe_ccb_poll(struct twe_softc *sc, struct twe_ccb *ccb, int timo) 1601 { 1602 int rv; 1603 1604 if ((rv = twe_ccb_submit(sc, ccb)) != 0) 1605 return (rv); 1606 1607 for (timo *= 1000; timo != 0; timo--) { 1608 twe_poll(sc); 1609 if ((ccb->ccb_flags & TWE_CCB_COMPLETE) != 0) 1610 break; 1611 DELAY(100); 1612 } 1613 1614 return (timo == 0); 1615 } 1616 1617 /* 1618 * If a CCB is specified, enqueue it. Pull CCBs off the software queue in 1619 * the order that they were enqueued and try to submit their command blocks 1620 * to the controller for execution. 1621 */ 1622 void 1623 twe_ccb_enqueue(struct twe_softc *sc, struct twe_ccb *ccb) 1624 { 1625 int s; 1626 1627 s = splbio(); 1628 1629 if (ccb != NULL) 1630 SIMPLEQ_INSERT_TAIL(&sc->sc_ccb_queue, ccb, ccb_chain.simpleq); 1631 1632 while ((ccb = SIMPLEQ_FIRST(&sc->sc_ccb_queue)) != NULL) { 1633 if (twe_ccb_submit(sc, ccb)) 1634 break; 1635 SIMPLEQ_REMOVE_HEAD(&sc->sc_ccb_queue, ccb_chain.simpleq); 1636 } 1637 1638 splx(s); 1639 } 1640 1641 /* 1642 * Submit the command block associated with the specified CCB to the 1643 * controller for execution. Must be called with interrupts blocked. 1644 */ 1645 int 1646 twe_ccb_submit(struct twe_softc *sc, struct twe_ccb *ccb) 1647 { 1648 bus_addr_t pa; 1649 int rv; 1650 u_int status; 1651 1652 /* Check to see if we can post a command. */ 1653 status = twe_inl(sc, TWE_REG_STS); 1654 twe_status_check(sc, status); 1655 1656 if ((status & TWE_STS_CMD_QUEUE_FULL) == 0) { 1657 bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap, 1658 (char *)ccb->ccb_cmd - (char *)sc->sc_cmds, 1659 sizeof(struct twe_cmd), 1660 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 1661 #ifdef DIAGNOSTIC 1662 if ((ccb->ccb_flags & TWE_CCB_ALLOCED) == 0) 1663 panic("%s: CCB %ld not ALLOCED\n", 1664 device_xname(sc->sc_dev), (long)(ccb - sc->sc_ccbs)); 1665 #endif 1666 ccb->ccb_flags |= TWE_CCB_ACTIVE; 1667 pa = sc->sc_cmds_paddr + 1668 ccb->ccb_cmdid * sizeof(struct twe_cmd); 1669 twe_outl(sc, TWE_REG_CMD_QUEUE, (u_int32_t)pa); 1670 rv = 0; 1671 } else 1672 rv = EBUSY; 1673 1674 return (rv); 1675 } 1676 1677 1678 /* 1679 * Accept an open operation on the control device. 1680 */ 1681 static int 1682 tweopen(dev_t dev, int flag, int mode, struct lwp *l) 1683 { 1684 struct twe_softc *twe; 1685 1686 if ((twe = device_lookup_private(&twe_cd, minor(dev))) == NULL) 1687 return (ENXIO); 1688 if ((twe->sc_flags & TWEF_OPEN) != 0) 1689 return (EBUSY); 1690 1691 twe->sc_flags |= TWEF_OPEN; 1692 return (0); 1693 } 1694 1695 /* 1696 * Accept the last close on the control device. 1697 */ 1698 static int 1699 tweclose(dev_t dev, int flag, int mode, 1700 struct lwp *l) 1701 { 1702 struct twe_softc *twe; 1703 1704 twe = device_lookup_private(&twe_cd, minor(dev)); 1705 twe->sc_flags &= ~TWEF_OPEN; 1706 return (0); 1707 } 1708 1709 void 1710 twe_ccb_wait_handler(struct twe_ccb *ccb, int error) 1711 { 1712 1713 /* Just wake up the sleeper. */ 1714 wakeup(ccb); 1715 } 1716 1717 /* 1718 * Handle control operations. 1719 */ 1720 static int 1721 tweioctl(dev_t dev, u_long cmd, void *data, int flag, 1722 struct lwp *l) 1723 { 1724 struct twe_softc *twe; 1725 struct twe_ccb *ccb; 1726 struct twe_param *param; 1727 struct twe_usercommand *tu; 1728 struct twe_paramcommand *tp; 1729 struct twe_drivecommand *td; 1730 void *pdata = NULL; 1731 int s, error = 0; 1732 u_int8_t cmdid; 1733 1734 twe = device_lookup_private(&twe_cd, minor(dev)); 1735 tu = (struct twe_usercommand *)data; 1736 tp = (struct twe_paramcommand *)data; 1737 td = (struct twe_drivecommand *)data; 1738 1739 /* This is intended to be compatible with the FreeBSD interface. */ 1740 switch (cmd) { 1741 case TWEIO_COMMAND: 1742 error = kauth_authorize_device_passthru(l->l_cred, dev, 1743 KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data); 1744 if (error) 1745 return (error); 1746 1747 /* XXX mutex */ 1748 if (tu->tu_size > 0) { 1749 /* 1750 * XXX Handle > TWE_SECTOR_SIZE? Let's see if 1751 * it's really necessary, first. 1752 */ 1753 if (tu->tu_size > TWE_SECTOR_SIZE) { 1754 #ifdef TWE_DEBUG 1755 printf("%s: TWEIO_COMMAND: tu_size = %zu\n", 1756 device_xname(twe->sc_dev), tu->tu_size); 1757 #endif 1758 return EINVAL; 1759 } 1760 pdata = malloc(TWE_SECTOR_SIZE, M_DEVBUF, M_WAITOK); 1761 error = copyin(tu->tu_data, pdata, tu->tu_size); 1762 if (error != 0) 1763 goto done; 1764 ccb = twe_ccb_alloc_wait(twe, 1765 TWE_CCB_DATA_IN | TWE_CCB_DATA_OUT); 1766 KASSERT(ccb != NULL); 1767 ccb->ccb_data = pdata; 1768 ccb->ccb_datasize = TWE_SECTOR_SIZE; 1769 } else { 1770 ccb = twe_ccb_alloc_wait(twe, 0); 1771 KASSERT(ccb != NULL); 1772 } 1773 1774 ccb->ccb_tx.tx_handler = twe_ccb_wait_handler; 1775 ccb->ccb_tx.tx_context = NULL; 1776 ccb->ccb_tx.tx_dv = twe->sc_dev; 1777 1778 cmdid = ccb->ccb_cmdid; 1779 memcpy(ccb->ccb_cmd, &tu->tu_cmd, sizeof(struct twe_cmd)); 1780 ccb->ccb_cmd->tc_cmdid = cmdid; 1781 1782 /* Map the transfer. */ 1783 if ((error = twe_ccb_map(twe, ccb)) != 0) { 1784 twe_ccb_free(twe, ccb); 1785 goto done; 1786 } 1787 1788 /* Submit the command and wait up to 1 minute. */ 1789 error = 0; 1790 twe_ccb_enqueue(twe, ccb); 1791 s = splbio(); 1792 while ((ccb->ccb_flags & TWE_CCB_COMPLETE) == 0) 1793 if ((error = tsleep(ccb, PRIBIO, "tweioctl", 1794 60 * hz)) != 0) 1795 break; 1796 splx(s); 1797 1798 /* Copy the command back to the ioctl argument. */ 1799 memcpy(&tu->tu_cmd, ccb->ccb_cmd, sizeof(struct twe_cmd)); 1800 #ifdef TWE_DEBUG 1801 printf("%s: TWEIO_COMMAND: tc_opcode = 0x%02x, " 1802 "tc_status = 0x%02x\n", device_xname(twe->sc_dev), 1803 tu->tu_cmd.tc_opcode, tu->tu_cmd.tc_status); 1804 #endif 1805 1806 s = splbio(); 1807 twe_ccb_free(twe, ccb); 1808 splx(s); 1809 1810 if (tu->tu_size > 0) 1811 error = copyout(pdata, tu->tu_data, tu->tu_size); 1812 goto done; 1813 1814 case TWEIO_STATS: 1815 return (ENOENT); 1816 1817 case TWEIO_AEN_POLL: 1818 s = splbio(); 1819 *(u_int *)data = twe_aen_dequeue(twe); 1820 splx(s); 1821 return (0); 1822 1823 case TWEIO_AEN_WAIT: 1824 s = splbio(); 1825 while ((*(u_int *)data = 1826 twe_aen_dequeue(twe)) == TWE_AEN_QUEUE_EMPTY) { 1827 twe->sc_flags |= TWEF_AENQ_WAIT; 1828 error = tsleep(&twe->sc_aen_queue, PRIBIO | PCATCH, 1829 "tweaen", 0); 1830 if (error == EINTR) { 1831 splx(s); 1832 return (error); 1833 } 1834 } 1835 splx(s); 1836 return (0); 1837 1838 case TWEIO_GET_PARAM: 1839 error = twe_param_get(twe, tp->tp_table_id, tp->tp_param_id, 1840 tp->tp_size, 0, ¶m); 1841 if (error != 0) 1842 return (error); 1843 if (param->tp_param_size > tp->tp_size) { 1844 error = EFAULT; 1845 goto done; 1846 } 1847 error = copyout(param->tp_data, tp->tp_data, 1848 param->tp_param_size); 1849 free(param, M_DEVBUF); 1850 goto done; 1851 1852 case TWEIO_SET_PARAM: 1853 pdata = malloc(tp->tp_size, M_DEVBUF, M_WAITOK); 1854 if ((error = copyin(tp->tp_data, pdata, tp->tp_size)) != 0) 1855 goto done; 1856 error = twe_param_set(twe, tp->tp_table_id, tp->tp_param_id, 1857 tp->tp_size, pdata); 1858 goto done; 1859 1860 case TWEIO_RESET: 1861 s = splbio(); 1862 twe_reset(twe); 1863 splx(s); 1864 return (0); 1865 1866 case TWEIO_ADD_UNIT: 1867 /* XXX mutex */ 1868 return (twe_add_unit(twe, td->td_unit)); 1869 1870 case TWEIO_DEL_UNIT: 1871 /* XXX mutex */ 1872 return (twe_del_unit(twe, td->td_unit)); 1873 1874 default: 1875 return EINVAL; 1876 } 1877 done: 1878 if (pdata) 1879 free(pdata, M_DEVBUF); 1880 return error; 1881 } 1882 1883 const struct cdevsw twe_cdevsw = { 1884 .d_open = tweopen, 1885 .d_close = tweclose, 1886 .d_read = noread, 1887 .d_write = nowrite, 1888 .d_ioctl = tweioctl, 1889 .d_stop = nostop, 1890 .d_tty = notty, 1891 .d_poll = nopoll, 1892 .d_mmap = nommap, 1893 .d_kqfilter = nokqfilter, 1894 .d_flag = D_OTHER 1895 }; 1896 1897 /* 1898 * Print some information about the controller 1899 */ 1900 static void 1901 twe_describe_controller(struct twe_softc *sc) 1902 { 1903 struct twe_param *p[6]; 1904 int i, rv = 0; 1905 uint32_t dsize; 1906 uint8_t ports; 1907 1908 ports = 0; 1909 1910 /* get the port count */ 1911 rv |= twe_param_get_1(sc, TWE_PARAM_CONTROLLER, 1912 TWE_PARAM_CONTROLLER_PortCount, &ports); 1913 1914 /* get version strings */ 1915 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_Mon, 1916 16, NULL, &p[0]); 1917 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_FW, 1918 16, NULL, &p[1]); 1919 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_BIOS, 1920 16, NULL, &p[2]); 1921 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_PCB, 1922 8, NULL, &p[3]); 1923 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_ATA, 1924 8, NULL, &p[4]); 1925 rv |= twe_param_get(sc, TWE_PARAM_VERSION, TWE_PARAM_VERSION_PCI, 1926 8, NULL, &p[5]); 1927 1928 if (rv) { 1929 /* some error occurred */ 1930 aprint_error_dev(sc->sc_dev, "failed to fetch version information\n"); 1931 return; 1932 } 1933 1934 aprint_normal_dev(sc->sc_dev, "%d ports, Firmware %.16s, BIOS %.16s\n", 1935 ports, p[1]->tp_data, p[2]->tp_data); 1936 1937 aprint_verbose_dev(sc->sc_dev, "Monitor %.16s, PCB %.8s, Achip %.8s, Pchip %.8s\n", 1938 p[0]->tp_data, p[3]->tp_data, 1939 p[4]->tp_data, p[5]->tp_data); 1940 1941 free(p[0], M_DEVBUF); 1942 free(p[1], M_DEVBUF); 1943 free(p[2], M_DEVBUF); 1944 free(p[3], M_DEVBUF); 1945 free(p[4], M_DEVBUF); 1946 free(p[5], M_DEVBUF); 1947 1948 rv = twe_param_get(sc, TWE_PARAM_DRIVESUMMARY, 1949 TWE_PARAM_DRIVESUMMARY_Status, 16, NULL, &p[0]); 1950 if (rv) { 1951 aprint_error_dev(sc->sc_dev, "failed to get drive status summary\n"); 1952 return; 1953 } 1954 for (i = 0; i < ports; i++) { 1955 if (p[0]->tp_data[i] != TWE_PARAM_DRIVESTATUS_Present) 1956 continue; 1957 rv = twe_param_get_4(sc, TWE_PARAM_DRIVEINFO + i, 1958 TWE_PARAM_DRIVEINFO_Size, &dsize); 1959 if (rv) { 1960 aprint_error_dev(sc->sc_dev, 1961 "unable to get drive size for port %d\n", i); 1962 continue; 1963 } 1964 rv = twe_param_get(sc, TWE_PARAM_DRIVEINFO + i, 1965 TWE_PARAM_DRIVEINFO_Model, 40, NULL, &p[1]); 1966 if (rv) { 1967 aprint_error_dev(sc->sc_dev, 1968 "unable to get drive model for port %d\n", i); 1969 continue; 1970 } 1971 aprint_verbose_dev(sc->sc_dev, "port %d: %.40s %d MB\n", 1972 i, p[1]->tp_data, dsize / 2048); 1973 free(p[1], M_DEVBUF); 1974 } 1975 free(p[0], M_DEVBUF); 1976 } 1977
Indexes created Wed Oct 01 07:09:59 GMT 2025