if_fxp_pci.c revision 1.83
1 /* $NetBSD: if_fxp_pci.c,v 1.83 2018/12/09 11:14:02 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * PCI bus front-end for the Intel i82557 fast Ethernet controller 35 * driver. Works with Intel Etherexpress Pro 10+, 100B, 100+ cards. 36 */ 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: if_fxp_pci.c,v 1.83 2018/12/09 11:14:02 jdolecek Exp $"); 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/mbuf.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/socket.h> 47 #include <sys/ioctl.h> 48 #include <sys/errno.h> 49 #include <sys/device.h> 50 51 #include <machine/endian.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_media.h> 56 #include <net/if_ether.h> 57 58 #include <sys/bus.h> 59 #include <sys/intr.h> 60 61 #include <dev/mii/miivar.h> 62 63 #include <dev/ic/i82557reg.h> 64 #include <dev/ic/i82557var.h> 65 66 #include <dev/pci/pcivar.h> 67 #include <dev/pci/pcireg.h> 68 #include <dev/pci/pcidevs.h> 69 70 struct fxp_pci_softc { 71 struct fxp_softc psc_fxp; 72 73 pci_chipset_tag_t psc_pc; /* pci chipset tag */ 74 pcireg_t psc_regs[0x20>>2]; /* saved PCI config regs (sparse) */ 75 pcitag_t psc_tag; /* pci register tag */ 76 77 struct pci_conf_state psc_pciconf; /* standard PCI configuration regs */ 78 }; 79 80 static int fxp_pci_match(device_t, cfdata_t, void *); 81 static void fxp_pci_attach(device_t, device_t, void *); 82 static int fxp_pci_detach(device_t, int); 83 84 static int fxp_pci_enable(struct fxp_softc *); 85 86 static void fxp_pci_confreg_restore(struct fxp_pci_softc *psc); 87 static bool fxp_pci_resume(device_t dv, const pmf_qual_t *); 88 89 CFATTACH_DECL3_NEW(fxp_pci, sizeof(struct fxp_pci_softc), 90 fxp_pci_match, fxp_pci_attach, fxp_pci_detach, NULL, NULL, 91 null_childdetached, DVF_DETACH_SHUTDOWN); 92 93 static const struct fxp_pci_product { 94 uint32_t fpp_prodid; /* PCI product ID */ 95 const char *fpp_name; /* device name */ 96 } fxp_pci_products[] = { 97 { PCI_PRODUCT_INTEL_82552, 98 "Intel i82552 10/100 Network Connection" }, 99 { PCI_PRODUCT_INTEL_8255X, 100 "Intel i8255x Ethernet" }, 101 { PCI_PRODUCT_INTEL_82559ER, 102 "Intel i82559ER Ethernet" }, 103 { PCI_PRODUCT_INTEL_IN_BUSINESS, 104 "Intel InBusiness Ethernet" }, 105 { PCI_PRODUCT_INTEL_PRO_100, 106 "Intel PRO/100 Ethernet" }, 107 { PCI_PRODUCT_INTEL_PRO_100_VE_0, 108 "Intel PRO/100 VE Network Controller" }, 109 { PCI_PRODUCT_INTEL_PRO_100_VE_1, 110 "Intel PRO/100 VE Network Controller" }, 111 { PCI_PRODUCT_INTEL_PRO_100_VE_2, 112 "Intel PRO/100 VE Network Controller with 82562ET/EZ PHY" }, 113 { PCI_PRODUCT_INTEL_PRO_100_VE_3, 114 "Intel PRO/100 VE Network Controller with 82562ET/EZ (CNR) PHY" }, 115 { PCI_PRODUCT_INTEL_PRO_100_VE_4, 116 "Intel PRO/100 VE (MOB) Network Controller" }, 117 { PCI_PRODUCT_INTEL_PRO_100_VE_5, 118 "Intel PRO/100 VE (LOM) Network Controller" }, 119 { PCI_PRODUCT_INTEL_PRO_100_VE_6, 120 "Intel PRO/100 VE Network Controller" }, 121 { PCI_PRODUCT_INTEL_PRO_100_VE_7, 122 "Intel PRO/100 VE Network Controller" }, 123 { PCI_PRODUCT_INTEL_PRO_100_VE_8, 124 "Intel PRO/100 VE Network Controller" }, 125 { PCI_PRODUCT_INTEL_PRO_100_VE_9, 126 "Intel PRO/100 VE Network Controller" }, 127 { PCI_PRODUCT_INTEL_PRO_100_VE_10, 128 "Intel PRO/100 VE Network Controller" }, 129 { PCI_PRODUCT_INTEL_PRO_100_VE_11, 130 "Intel PRO/100 VE Network Controller" }, 131 { PCI_PRODUCT_INTEL_PRO_100_VM_0, 132 "Intel PRO/100 VM Network Controller" }, 133 { PCI_PRODUCT_INTEL_PRO_100_VM_1, 134 "Intel PRO/100 VM Network Controller" }, 135 { PCI_PRODUCT_INTEL_PRO_100_VM_2, 136 "Intel PRO/100 VM Network Controller" }, 137 { PCI_PRODUCT_INTEL_PRO_100_VM_3, 138 "Intel PRO/100 VM Network Controller with 82562EM/EX PHY" }, 139 { PCI_PRODUCT_INTEL_PRO_100_VM_4, 140 "Intel PRO/100 VM Network Controller with 82562EM/EX (CNR) PHY" }, 141 { PCI_PRODUCT_INTEL_PRO_100_VM_5, 142 "Intel PRO/100 VM (MOB) Network Controller" }, 143 { PCI_PRODUCT_INTEL_PRO_100_VM_6, 144 "Intel PRO/100 VM Network Controller with 82562ET/EZ PHY" }, 145 { PCI_PRODUCT_INTEL_PRO_100_VM_7, 146 "Intel PRO/100 VM Network Connection" }, 147 { PCI_PRODUCT_INTEL_PRO_100_VM_8, 148 "Intel PRO/100 VM Network Connection" }, 149 { PCI_PRODUCT_INTEL_PRO_100_VM_9, 150 "Intel PRO/100 VM Network Connection" }, 151 { PCI_PRODUCT_INTEL_PRO_100_VM_10, 152 "Intel PRO/100 VM Network Connection" }, 153 { PCI_PRODUCT_INTEL_PRO_100_VM_11, 154 "Intel PRO/100 VM Network Connection" }, 155 { PCI_PRODUCT_INTEL_PRO_100_VM_12, 156 "Intel PRO/100 VM Network Connection" }, 157 { PCI_PRODUCT_INTEL_PRO_100_VM_13, 158 "Intel PRO/100 VM Network Connection" }, 159 { PCI_PRODUCT_INTEL_PRO_100_VM_14, 160 "Intel PRO/100 VM Network Connection" }, 161 { PCI_PRODUCT_INTEL_PRO_100_VM_15, 162 "Intel PRO/100 VM Network Connection" }, 163 { PCI_PRODUCT_INTEL_PRO_100_VM_16, 164 "Intel PRO/100 VM Network Connection" }, 165 { PCI_PRODUCT_INTEL_PRO_100_M, 166 "Intel PRO/100 M Network Controller" }, 167 { PCI_PRODUCT_INTEL_82801BA_LAN, 168 "Intel i82562 Ethernet" }, 169 { PCI_PRODUCT_INTEL_82801E_LAN_1, 170 "Intel i82801E Ethernet" }, 171 { PCI_PRODUCT_INTEL_82801E_LAN_2, 172 "Intel i82801E Ethernet" }, 173 { PCI_PRODUCT_INTEL_82801EB_LAN, 174 "Intel 82801EB/ER (ICH5) Network Controller" }, 175 { PCI_PRODUCT_INTEL_82801FB_LAN, 176 "Intel i82801FB LAN Controller" }, 177 { PCI_PRODUCT_INTEL_82801FB_LAN_2, 178 "Intel i82801FB LAN Controller" }, 179 { PCI_PRODUCT_INTEL_82801G_LAN, 180 "Intel 82801GB/GR (ICH7) Network Controller" }, 181 { PCI_PRODUCT_INTEL_82801GB_LAN, 182 "Intel 82801GB 10/100 Network Controller" }, 183 { 0, 184 NULL }, 185 }; 186 187 static const struct fxp_pci_product * 188 fxp_pci_lookup(const struct pci_attach_args *pa) 189 { 190 const struct fxp_pci_product *fpp; 191 192 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_INTEL) 193 return (NULL); 194 195 for (fpp = fxp_pci_products; fpp->fpp_name != NULL; fpp++) 196 if (PCI_PRODUCT(pa->pa_id) == fpp->fpp_prodid) 197 return (fpp); 198 199 return (NULL); 200 } 201 202 static int 203 fxp_pci_match(device_t parent, cfdata_t match, void *aux) 204 { 205 struct pci_attach_args *pa = aux; 206 207 if (fxp_pci_lookup(pa) != NULL) 208 return (1); 209 210 return (0); 211 } 212 213 /* 214 * On resume : (XXX it is necessary with new pmf framework ?) 215 * Restore PCI configuration registers that may have been clobbered. 216 * This is necessary due to bugs on the Sony VAIO Z505-series on-board 217 * ethernet, after an APM suspend/resume, as well as after an ACPI 218 * D3->D0 transition. We call this function from a power hook after 219 * APM resume events, as well as after the ACPI D3->D0 transition. 220 */ 221 static void 222 fxp_pci_confreg_restore(struct fxp_pci_softc *psc) 223 { 224 pcireg_t reg; 225 226 #if 0 227 /* 228 * Check to see if the command register is blank -- if so, then 229 * we'll assume that all the clobberable-registers have been 230 * clobbered. 231 */ 232 233 /* 234 * In general, the above metric is accurate. Unfortunately, 235 * it is inaccurate across a hibernation. Ideally APM/ACPI 236 * code should take note of hibernation events and execute 237 * a hibernation wakeup hook, but at present a hibernation wake 238 * is indistinguishable from a suspend wake. 239 */ 240 241 if (((reg = pci_conf_read(psc->psc_pc, psc->psc_tag, 242 PCI_COMMAND_STATUS_REG)) & 0xffff) != 0) 243 return; 244 #else 245 reg = pci_conf_read(psc->psc_pc, psc->psc_tag, PCI_COMMAND_STATUS_REG); 246 #endif 247 248 pci_conf_write(psc->psc_pc, psc->psc_tag, 249 PCI_COMMAND_STATUS_REG, 250 (reg & 0xffff0000) | 251 (psc->psc_regs[PCI_COMMAND_STATUS_REG>>2] & 0xffff)); 252 pci_conf_write(psc->psc_pc, psc->psc_tag, PCI_BHLC_REG, 253 psc->psc_regs[PCI_BHLC_REG>>2]); 254 pci_conf_write(psc->psc_pc, psc->psc_tag, PCI_MAPREG_START+0x0, 255 psc->psc_regs[(PCI_MAPREG_START+0x0)>>2]); 256 pci_conf_write(psc->psc_pc, psc->psc_tag, PCI_MAPREG_START+0x4, 257 psc->psc_regs[(PCI_MAPREG_START+0x4)>>2]); 258 pci_conf_write(psc->psc_pc, psc->psc_tag, PCI_MAPREG_START+0x8, 259 psc->psc_regs[(PCI_MAPREG_START+0x8)>>2]); 260 } 261 262 static bool 263 fxp_pci_resume(device_t dv, const pmf_qual_t *qual) 264 { 265 struct fxp_pci_softc *psc = device_private(dv); 266 fxp_pci_confreg_restore(psc); 267 268 return true; 269 } 270 271 static int 272 fxp_pci_detach(device_t self, int flags) 273 { 274 struct fxp_pci_softc *psc = device_private(self); 275 struct fxp_softc *sc = &psc->psc_fxp; 276 int error; 277 278 /* Finish off the attach. */ 279 if ((error = fxp_detach(sc, flags)) != 0) 280 return error; 281 282 pmf_device_deregister(self); 283 284 pci_intr_disestablish(psc->psc_pc, sc->sc_ih); 285 286 bus_space_unmap(sc->sc_st, sc->sc_sh, sc->sc_size); 287 288 return 0; 289 } 290 291 static void 292 fxp_pci_attach(device_t parent, device_t self, void *aux) 293 { 294 struct fxp_pci_softc *psc = device_private(self); 295 struct fxp_softc *sc = &psc->psc_fxp; 296 const struct pci_attach_args *pa = aux; 297 pci_chipset_tag_t pc = pa->pa_pc; 298 pci_intr_handle_t ih; 299 const struct fxp_pci_product *fpp; 300 const char *chipname = NULL; 301 const char *intrstr = NULL; 302 bus_space_tag_t iot, memt; 303 bus_space_handle_t ioh, memh; 304 int ioh_valid, memh_valid; 305 bus_addr_t addr; 306 int flags; 307 int error; 308 char intrbuf[PCI_INTRSTR_LEN]; 309 310 sc->sc_dev = self; 311 312 /* 313 * Map control/status registers. 314 */ 315 ioh_valid = (pci_mapreg_map(pa, FXP_PCI_IOBA, 316 PCI_MAPREG_TYPE_IO, 0, 317 &iot, &ioh, NULL, NULL) == 0); 318 319 /* 320 * Version 2.1 of the PCI spec, page 196, "Address Maps": 321 * 322 * Prefetchable 323 * 324 * Set to one if there are no side effects on reads, the 325 * device returns all bytes regardless of the byte enables, 326 * and host bridges can merge processor writes into this 327 * range without causing errors. Bit must be set to zero 328 * otherwise. 329 * 330 * The 82557 incorrectly sets the "prefetchable" bit, resulting 331 * in errors on systems which will do merged reads and writes. 332 * These errors manifest themselves as all-bits-set when reading 333 * from the EEPROM or other < 4 byte registers. 334 * 335 * We must work around this problem by always forcing the mapping 336 * for memory space to be uncacheable. On systems which cannot 337 * create an uncacheable mapping (because the firmware mapped it 338 * into only cacheable/prefetchable space due to the "prefetchable" 339 * bit), we can fall back onto i/o mapped access. 340 */ 341 memh_valid = 0; 342 memt = pa->pa_memt; 343 if (((pa->pa_flags & PCI_FLAGS_MEM_OKAY) != 0) && 344 pci_mapreg_info(pa->pa_pc, pa->pa_tag, FXP_PCI_MMBA, 345 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 346 &addr, &sc->sc_size, &flags) == 0) { 347 flags &= ~BUS_SPACE_MAP_PREFETCHABLE; 348 if (bus_space_map(memt, addr, sc->sc_size, flags, &memh) == 0) 349 memh_valid = 1; 350 } 351 352 if (memh_valid) { 353 sc->sc_st = memt; 354 sc->sc_sh = memh; 355 } else if (ioh_valid) { 356 sc->sc_st = iot; 357 sc->sc_sh = ioh; 358 } else { 359 aprint_error(": unable to map device registers\n"); 360 return; 361 } 362 363 sc->sc_dmat = pa->pa_dmat; 364 365 fpp = fxp_pci_lookup(pa); 366 if (fpp == NULL) { 367 printf("\n"); 368 panic("fxp_pci_attach: impossible"); 369 } 370 371 sc->sc_rev = PCI_REVISION(pa->pa_class); 372 373 switch (fpp->fpp_prodid) { 374 case PCI_PRODUCT_INTEL_8255X: 375 case PCI_PRODUCT_INTEL_IN_BUSINESS: 376 377 if (sc->sc_rev >= FXP_REV_82558_A4) { 378 chipname = "i82558 Ethernet"; 379 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 380 /* 381 * Enable the MWI command for memory writes. 382 */ 383 if (pa->pa_flags & PCI_FLAGS_MWI_OKAY) 384 sc->sc_flags |= FXPF_MWI; 385 } 386 if (sc->sc_rev >= FXP_REV_82559_A0) { 387 chipname = "i82559 Ethernet"; 388 sc->sc_flags |= FXPF_82559_RXCSUM; 389 } 390 if (sc->sc_rev >= FXP_REV_82559S_A) 391 chipname = "i82559S Ethernet"; 392 if (sc->sc_rev >= FXP_REV_82550) { 393 chipname = "i82550 Ethernet"; 394 sc->sc_flags &= ~FXPF_82559_RXCSUM; 395 sc->sc_flags |= FXPF_EXT_RFA; 396 } 397 if (sc->sc_rev >= FXP_REV_82551_E) 398 chipname = "i82551 Ethernet"; 399 400 /* 401 * Mark all i82559 and i82550 revisions as having 402 * the "resume bug". See i82557.c for details. 403 */ 404 if (sc->sc_rev >= FXP_REV_82559_A0) 405 sc->sc_flags |= FXPF_HAS_RESUME_BUG; 406 407 break; 408 409 case PCI_PRODUCT_INTEL_82559ER: 410 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 411 412 /* 413 * i82559ER/82551ER don't support RX hardware checksumming 414 * even though it has a newer revision number than 82559_A0. 415 */ 416 417 /* All i82559 have the "resume bug". */ 418 sc->sc_flags |= FXPF_HAS_RESUME_BUG; 419 420 /* Enable the MWI command for memory writes. */ 421 if (pa->pa_flags & PCI_FLAGS_MWI_OKAY) 422 sc->sc_flags |= FXPF_MWI; 423 424 if (sc->sc_rev >= FXP_REV_82551_E) 425 chipname = "Intel i82551ER Ethernet"; 426 427 break; 428 429 case PCI_PRODUCT_INTEL_82801BA_LAN: 430 case PCI_PRODUCT_INTEL_PRO_100_VE_0: 431 case PCI_PRODUCT_INTEL_PRO_100_VE_1: 432 case PCI_PRODUCT_INTEL_PRO_100_VM_0: 433 case PCI_PRODUCT_INTEL_PRO_100_VM_1: 434 case PCI_PRODUCT_INTEL_82562EH_HPNA_0: 435 case PCI_PRODUCT_INTEL_82562EH_HPNA_1: 436 case PCI_PRODUCT_INTEL_82562EH_HPNA_2: 437 case PCI_PRODUCT_INTEL_PRO_100_VM_2: 438 /* 439 * The ICH-2 and ICH-3 have the "resume bug". 440 */ 441 sc->sc_flags |= FXPF_HAS_RESUME_BUG; 442 /* FALLTHROUGH */ 443 444 default: 445 if (sc->sc_rev >= FXP_REV_82558_A4) 446 sc->sc_flags |= FXPF_FC|FXPF_EXT_TXCB; 447 if (sc->sc_rev >= FXP_REV_82559_A0) 448 sc->sc_flags |= FXPF_82559_RXCSUM; 449 450 break; 451 } 452 453 pci_aprint_devinfo_fancy(pa, "Ethernet controller", 454 (chipname ? chipname : fpp->fpp_name), 1); 455 456 /* Make sure bus-mastering is enabled. */ 457 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 458 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) | 459 PCI_COMMAND_MASTER_ENABLE); 460 461 /* 462 * Under some circumstances (such as APM suspend/resume 463 * cycles, and across ACPI power state changes), the 464 * i82257-family can lose the contents of critical PCI 465 * configuration registers, causing the card to be 466 * non-responsive and useless. This occurs on the Sony VAIO 467 * Z505-series, among others. Preserve them here so they can 468 * be later restored (by fxp_pci_confreg_restore()). 469 */ 470 psc->psc_pc = pc; 471 psc->psc_tag = pa->pa_tag; 472 psc->psc_regs[PCI_COMMAND_STATUS_REG>>2] = 473 pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 474 psc->psc_regs[PCI_BHLC_REG>>2] = 475 pci_conf_read(pc, pa->pa_tag, PCI_BHLC_REG); 476 psc->psc_regs[(PCI_MAPREG_START+0x0)>>2] = 477 pci_conf_read(pc, pa->pa_tag, PCI_MAPREG_START+0x0); 478 psc->psc_regs[(PCI_MAPREG_START+0x4)>>2] = 479 pci_conf_read(pc, pa->pa_tag, PCI_MAPREG_START+0x4); 480 psc->psc_regs[(PCI_MAPREG_START+0x8)>>2] = 481 pci_conf_read(pc, pa->pa_tag, PCI_MAPREG_START+0x8); 482 483 /* power up chip */ 484 switch ((error = pci_activate(pa->pa_pc, pa->pa_tag, self, 485 pci_activate_null))) { 486 case EOPNOTSUPP: 487 break; 488 case 0: 489 sc->sc_enable = fxp_pci_enable; 490 sc->sc_disable = NULL; 491 break; 492 default: 493 aprint_error_dev(self, "cannot activate %d\n", error); 494 return; 495 } 496 497 /* Restore PCI configuration registers. */ 498 fxp_pci_confreg_restore(psc); 499 500 sc->sc_enabled = 1; 501 502 /* 503 * Map and establish our interrupt. 504 */ 505 if (pci_intr_map(pa, &ih)) { 506 aprint_error_dev(self, "couldn't map interrupt\n"); 507 return; 508 } 509 intrstr = pci_intr_string(pc, ih, intrbuf, sizeof(intrbuf)); 510 sc->sc_ih = pci_intr_establish_xname(pc, ih, IPL_NET, fxp_intr, sc, 511 device_xname(self)); 512 if (sc->sc_ih == NULL) { 513 aprint_error_dev(self, "couldn't establish interrupt"); 514 if (intrstr != NULL) 515 aprint_error(" at %s", intrstr); 516 aprint_error("\n"); 517 return; 518 } 519 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 520 521 /* Finish off the attach. */ 522 fxp_attach(sc); 523 if (sc->sc_disable != NULL) 524 fxp_disable(sc); 525 526 /* Add a suspend hook to restore PCI config state */ 527 if (pmf_device_register(self, NULL, fxp_pci_resume)) 528 pmf_class_network_register(self, &sc->sc_ethercom.ec_if); 529 else 530 aprint_error_dev(self, "couldn't establish power handler\n"); 531 } 532 533 static int 534 fxp_pci_enable(struct fxp_softc *sc) 535 { 536 struct fxp_pci_softc *psc = (void *) sc; 537 538 #if 0 539 printf("%s: going to power state D0\n", device_xname(self)); 540 #endif 541 542 /* Now restore the configuration registers. */ 543 fxp_pci_confreg_restore(psc); 544 545 return (0); 546 } 547
Indexes created Wed Sep 24 22:09:59 GMT 2025