1/* 2 * Copyright (c) 1995, David Greenman 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * 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 *
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27 * $FreeBSD: head/sys/dev/ed/if_ed.c 72193 2001-02-08 22:54:57Z luigi $
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27 * $FreeBSD: head/sys/dev/ed/if_ed.c 73374 2001-03-03 08:31:37Z imp $ |
28 */ 29 30/* 31 * Device driver for National Semiconductor DS8390/WD83C690 based ethernet 32 * adapters. By David Greenman, 29-April-1993 33 * 34 * Currently supports the Western Digital/SMC 8003 and 8013 series, 35 * the SMC Elite Ultra (8216), the 3Com 3c503, the NE1000 and NE2000, 36 * and a variety of similar clones. 37 * 38 */ 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/sockio.h> 43#include <sys/mbuf.h>
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44#include <sys/kernel.h> |
45#include <sys/socket.h> 46#include <sys/syslog.h> 47 48#include <sys/bus.h> 49 50#include <machine/bus.h> 51#include <sys/rman.h> 52#include <machine/resource.h> 53 54#include <net/ethernet.h> 55#include <net/if.h> 56#include <net/if_arp.h> 57#include <net/if_dl.h> 58#include <net/if_mib.h>
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59#include <net/if_media.h> |
60
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61#include <dev/mii/mii.h> 62#include <dev/mii/miivar.h> 63 |
64#include <net/bpf.h> 65#include "opt_bdg.h" 66#ifdef BRIDGE 67#include <net/bridge.h> 68#endif 69 70#include <machine/md_var.h> 71 72#include <dev/ed/if_edreg.h> 73#include <dev/ed/if_edvar.h> 74 75devclass_t ed_devclass; 76 77static void ed_init __P((void *)); 78static int ed_ioctl __P((struct ifnet *, u_long, caddr_t)); 79static void ed_start __P((struct ifnet *)); 80static void ed_reset __P((struct ifnet *)); 81static void ed_watchdog __P((struct ifnet *));
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82static void ed_tick __P((void *)); |
83 84static void ds_getmcaf __P((struct ed_softc *, u_int32_t *)); 85 86static void ed_get_packet __P((struct ed_softc *, char *, /* u_short */ int)); 87 88static __inline void ed_rint __P((struct ed_softc *)); 89static __inline void ed_xmit __P((struct ed_softc *)); 90static __inline char * ed_ring_copy __P((struct ed_softc *, char *, char *, 91 /* u_short */ int)); 92static void ed_hpp_set_physical_link __P((struct ed_softc *)); 93static void ed_hpp_readmem __P((struct ed_softc *, int, unsigned char *, 94 /* u_short */ int)); 95static void ed_hpp_writemem __P((struct ed_softc *, unsigned char *, 96 /* u_short */ int, /* u_short */ int)); 97static u_short ed_hpp_write_mbufs __P((struct ed_softc *, struct mbuf *, 98 int)); 99 100static u_short ed_pio_write_mbufs __P((struct ed_softc *, struct mbuf *, 101 int)); 102 103static void ed_setrcr __P((struct ed_softc *)); 104 105static u_int32_t ds_crc __P((u_char *ep)); 106 107/* 108 * Interrupt conversion table for WD/SMC ASIC/83C584 109 */ 110static unsigned short ed_intr_val[] = { 111 9, 112 3, 113 5, 114 7, 115 10, 116 11, 117 15, 118 4 119}; 120 121/* 122 * Interrupt conversion table for 83C790 123 */ 124static unsigned short ed_790_intr_val[] = { 125 0, 126 9, 127 3, 128 5, 129 7, 130 10, 131 11, 132 15 133}; 134 135/* 136 * Interrupt conversion table for the HP PC LAN+ 137 */ 138 139static unsigned short ed_hpp_intr_val[] = { 140 0, /* 0 */ 141 0, /* 1 */ 142 0, /* 2 */ 143 3, /* 3 */ 144 4, /* 4 */ 145 5, /* 5 */ 146 6, /* 6 */ 147 7, /* 7 */ 148 0, /* 8 */ 149 9, /* 9 */ 150 10, /* 10 */ 151 11, /* 11 */ 152 12, /* 12 */ 153 0, /* 13 */ 154 0, /* 14 */ 155 15 /* 15 */ 156}; 157 158/* 159 * Generic probe routine for testing for the existance of a DS8390. 160 * Must be called after the NIC has just been reset. This routine 161 * works by looking at certain register values that are guaranteed 162 * to be initialized a certain way after power-up or reset. Seems 163 * not to currently work on the 83C690. 164 * 165 * Specifically: 166 * 167 * Register reset bits set bits 168 * Command Register (CR) TXP, STA RD2, STP 169 * Interrupt Status (ISR) RST 170 * Interrupt Mask (IMR) All bits 171 * Data Control (DCR) LAS 172 * Transmit Config. (TCR) LB1, LB0 173 * 174 * We only look at the CR and ISR registers, however, because looking at 175 * the others would require changing register pages (which would be 176 * intrusive if this isn't an 8390). 177 * 178 * Return 1 if 8390 was found, 0 if not. 179 */ 180 181int 182ed_probe_generic8390(sc) 183 struct ed_softc *sc; 184{ 185 if ((ed_nic_inb(sc, ED_P0_CR) & 186 (ED_CR_RD2 | ED_CR_TXP | ED_CR_STA | ED_CR_STP)) != 187 (ED_CR_RD2 | ED_CR_STP)) 188 return (0); 189 if ((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST) != ED_ISR_RST) 190 return (0); 191 192 return (1); 193} 194 195/* 196 * Probe and vendor-specific initialization routine for SMC/WD80x3 boards 197 */ 198int 199ed_probe_WD80x3_generic(dev, flags, intr_vals) 200 device_t dev; 201 int flags; 202 unsigned short *intr_vals[]; 203{ 204 struct ed_softc *sc = device_get_softc(dev); 205 int error; 206 int i; 207 u_int memsize, maddr; 208 u_char iptr, isa16bit, sum, totalsum; 209 u_long conf_maddr, conf_msize, irq, junk; 210 211 sc->chip_type = ED_CHIP_TYPE_DP8390; 212 213 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER) { 214 totalsum = ED_WD_ROM_CHECKSUM_TOTAL_TOSH_ETHER; 215 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_POW); 216 DELAY(10000); 217 } 218 else 219 totalsum = ED_WD_ROM_CHECKSUM_TOTAL; 220 221 /* 222 * Attempt to do a checksum over the station address PROM. If it 223 * fails, it's probably not a SMC/WD board. There is a problem with 224 * this, though: some clone WD boards don't pass the checksum test. 225 * Danpex boards for one. 226 */ 227 for (sum = 0, i = 0; i < 8; ++i) 228 sum += ed_asic_inb(sc, ED_WD_PROM + i); 229 230 if (sum != totalsum) { 231 232 /* 233 * Checksum is invalid. This often happens with cheap WD8003E 234 * clones. In this case, the checksum byte (the eighth byte) 235 * seems to always be zero. 236 */ 237 if (ed_asic_inb(sc, ED_WD_CARD_ID) != ED_TYPE_WD8003E || 238 ed_asic_inb(sc, ED_WD_PROM + 7) != 0) 239 return (ENXIO); 240 } 241 /* reset card to force it into a known state. */ 242 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER) 243 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_RST | ED_WD_MSR_POW); 244 else 245 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_RST); 246 247 DELAY(100); 248 ed_asic_outb(sc, ED_WD_MSR, ed_asic_inb(sc, ED_WD_MSR) & ~ED_WD_MSR_RST); 249 /* wait in the case this card is reading its EEROM */ 250 DELAY(5000); 251 252 sc->vendor = ED_VENDOR_WD_SMC; 253 sc->type = ed_asic_inb(sc, ED_WD_CARD_ID); 254 255 /* 256 * Set initial values for width/size. 257 */ 258 memsize = 8192; 259 isa16bit = 0; 260 switch (sc->type) { 261 case ED_TYPE_WD8003S: 262 sc->type_str = "WD8003S"; 263 break; 264 case ED_TYPE_WD8003E: 265 sc->type_str = "WD8003E"; 266 break; 267 case ED_TYPE_WD8003EB: 268 sc->type_str = "WD8003EB"; 269 break; 270 case ED_TYPE_WD8003W: 271 sc->type_str = "WD8003W"; 272 break; 273 case ED_TYPE_WD8013EBT: 274 sc->type_str = "WD8013EBT"; 275 memsize = 16384; 276 isa16bit = 1; 277 break; 278 case ED_TYPE_WD8013W: 279 sc->type_str = "WD8013W"; 280 memsize = 16384; 281 isa16bit = 1; 282 break; 283 case ED_TYPE_WD8013EP: /* also WD8003EP */ 284 if (ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_16BIT) { 285 isa16bit = 1; 286 memsize = 16384; 287 sc->type_str = "WD8013EP"; 288 } else { 289 sc->type_str = "WD8003EP"; 290 } 291 break; 292 case ED_TYPE_WD8013WC: 293 sc->type_str = "WD8013WC"; 294 memsize = 16384; 295 isa16bit = 1; 296 break; 297 case ED_TYPE_WD8013EBP: 298 sc->type_str = "WD8013EBP"; 299 memsize = 16384; 300 isa16bit = 1; 301 break; 302 case ED_TYPE_WD8013EPC: 303 sc->type_str = "WD8013EPC"; 304 memsize = 16384; 305 isa16bit = 1; 306 break; 307 case ED_TYPE_SMC8216C: /* 8216 has 16K shared mem -- 8416 has 8K */ 308 case ED_TYPE_SMC8216T: 309 if (sc->type == ED_TYPE_SMC8216C) { 310 sc->type_str = "SMC8216/SMC8216C"; 311 } else { 312 sc->type_str = "SMC8216T"; 313 } 314 315 ed_asic_outb(sc, ED_WD790_HWR, 316 ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH); 317 switch (ed_asic_inb(sc, ED_WD790_RAR) & ED_WD790_RAR_SZ64) { 318 case ED_WD790_RAR_SZ64: 319 memsize = 65536; 320 break; 321 case ED_WD790_RAR_SZ32: 322 memsize = 32768; 323 break; 324 case ED_WD790_RAR_SZ16: 325 memsize = 16384; 326 break; 327 case ED_WD790_RAR_SZ8: 328 /* 8216 has 16K shared mem -- 8416 has 8K */ 329 if (sc->type == ED_TYPE_SMC8216C) { 330 sc->type_str = "SMC8416C/SMC8416BT"; 331 } else { 332 sc->type_str = "SMC8416T"; 333 } 334 memsize = 8192; 335 break; 336 } 337 ed_asic_outb(sc, ED_WD790_HWR, 338 ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH); 339 340 isa16bit = 1; 341 sc->chip_type = ED_CHIP_TYPE_WD790; 342 break; 343 case ED_TYPE_TOSHIBA1: 344 sc->type_str = "Toshiba1"; 345 memsize = 32768; 346 isa16bit = 1; 347 break; 348 case ED_TYPE_TOSHIBA4: 349 sc->type_str = "Toshiba4"; 350 memsize = 32768; 351 isa16bit = 1; 352 break; 353 default: 354 sc->type_str = ""; 355 break; 356 } 357 358 /* 359 * Make some adjustments to initial values depending on what is found 360 * in the ICR. 361 */ 362 if (isa16bit && (sc->type != ED_TYPE_WD8013EBT) 363 && (sc->type != ED_TYPE_TOSHIBA1) && (sc->type != ED_TYPE_TOSHIBA4) 364 && ((ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_16BIT) == 0)) { 365 isa16bit = 0; 366 memsize = 8192; 367 } 368 369 error = bus_get_resource(dev, SYS_RES_MEMORY, 0, 370 &conf_maddr, &conf_msize); 371 if (error) 372 return (error); 373 374#if ED_DEBUG 375 printf("type = %x type_str=%s isa16bit=%d memsize=%d id_msize=%d\n", 376 sc->type, sc->type_str, isa16bit, memsize, conf_msize); 377 for (i = 0; i < 8; i++) 378 printf("%x -> %x\n", i, ed_asic_inb(sc, i)); 379#endif 380 381 /* 382 * Allow the user to override the autoconfiguration 383 */ 384 if (conf_msize > 1) 385 memsize = conf_msize; 386 387 maddr = conf_maddr; 388 if (maddr < 0xa0000 || maddr + memsize > 0x1000000) { 389 device_printf(dev, "Invalid ISA memory address range configured: 0x%x - 0x%x\n", 390 maddr, maddr + memsize); 391 return (ENXIO); 392 } 393 394 /* 395 * (note that if the user specifies both of the following flags that 396 * '8bit' mode intentionally has precedence) 397 */ 398 if (flags & ED_FLAGS_FORCE_16BIT_MODE) 399 isa16bit = 1; 400 if (flags & ED_FLAGS_FORCE_8BIT_MODE) 401 isa16bit = 0; 402 403 /* 404 * If possible, get the assigned interrupt number from the card and 405 * use it. 406 */ 407 if ((sc->type & ED_WD_SOFTCONFIG) && 408 (sc->chip_type != ED_CHIP_TYPE_WD790)) { 409 410 /* 411 * Assemble together the encoded interrupt number. 412 */ 413 iptr = (ed_asic_inb(sc, ED_WD_ICR) & ED_WD_ICR_IR2) | 414 ((ed_asic_inb(sc, ED_WD_IRR) & 415 (ED_WD_IRR_IR0 | ED_WD_IRR_IR1)) >> 5); 416 417 /* 418 * If no interrupt specified (or "?"), use what the board tells us. 419 */ 420 error = bus_get_resource(dev, SYS_RES_IRQ, 0, 421 &irq, &junk); 422 if (error && intr_vals[0] != NULL) { 423 error = bus_set_resource(dev, SYS_RES_IRQ, 0, 424 intr_vals[0][iptr], 1); 425 } 426 if (error) 427 return (error); 428 429 /* 430 * Enable the interrupt. 431 */ 432 ed_asic_outb(sc, ED_WD_IRR, 433 ed_asic_inb(sc, ED_WD_IRR) | ED_WD_IRR_IEN); 434 } 435 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 436 ed_asic_outb(sc, ED_WD790_HWR, 437 ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH); 438 iptr = (((ed_asic_inb(sc, ED_WD790_GCR) & ED_WD790_GCR_IR2) >> 4) | 439 (ed_asic_inb(sc, ED_WD790_GCR) & 440 (ED_WD790_GCR_IR1 | ED_WD790_GCR_IR0)) >> 2); 441 ed_asic_outb(sc, ED_WD790_HWR, 442 ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH); 443 444 /* 445 * If no interrupt specified (or "?"), use what the board tells us. 446 */ 447 error = bus_get_resource(dev, SYS_RES_IRQ, 0, 448 &irq, &junk); 449 if (error && intr_vals[1] != NULL) { 450 error = bus_set_resource(dev, SYS_RES_IRQ, 0, 451 intr_vals[1][iptr], 1); 452 } 453 if (error) 454 return (error); 455 456 /* 457 * Enable interrupts. 458 */ 459 ed_asic_outb(sc, ED_WD790_ICR, 460 ed_asic_inb(sc, ED_WD790_ICR) | ED_WD790_ICR_EIL); 461 } 462 error = bus_get_resource(dev, SYS_RES_IRQ, 0, 463 &irq, &junk); 464 if (error) { 465 device_printf(dev, "%s cards don't support auto-detected/assigned interrupts.\n", 466 sc->type_str); 467 return (ENXIO); 468 } 469 sc->isa16bit = isa16bit; 470 sc->mem_shared = 1; 471 472 error = ed_alloc_memory(dev, 0, memsize); 473 if (error) { 474 printf("*** ed_alloc_memory() failed! (%d)\n", error); 475 return (error); 476 } 477 sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res); 478 479 /* 480 * allocate one xmit buffer if < 16k, two buffers otherwise 481 */ 482 if ((memsize < 16384) || 483 (flags & ED_FLAGS_NO_MULTI_BUFFERING)) { 484 sc->txb_cnt = 1; 485 } else { 486 sc->txb_cnt = 2; 487 } 488 sc->tx_page_start = ED_WD_PAGE_OFFSET; 489 sc->rec_page_start = ED_WD_PAGE_OFFSET + ED_TXBUF_SIZE * sc->txb_cnt; 490 sc->rec_page_stop = ED_WD_PAGE_OFFSET + memsize / ED_PAGE_SIZE; 491 sc->mem_ring = sc->mem_start + (ED_PAGE_SIZE * sc->rec_page_start); 492 sc->mem_size = memsize; 493 sc->mem_end = sc->mem_start + memsize; 494 495 /* 496 * Get station address from on-board ROM 497 */ 498 for (i = 0; i < ETHER_ADDR_LEN; ++i) 499 sc->arpcom.ac_enaddr[i] = ed_asic_inb(sc, ED_WD_PROM + i); 500 501 /* 502 * Set upper address bits and 8/16 bit access to shared memory. 503 */ 504 if (isa16bit) { 505 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 506 sc->wd_laar_proto = ed_asic_inb(sc, ED_WD_LAAR); 507 } else { 508 sc->wd_laar_proto = ED_WD_LAAR_L16EN | 509 ((kvtop(sc->mem_start) >> 19) & ED_WD_LAAR_ADDRHI); 510 } 511 /* 512 * Enable 16bit access 513 */ 514 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto | 515 ED_WD_LAAR_M16EN); 516 } else { 517 if (((sc->type & ED_WD_SOFTCONFIG) || 518 (sc->type == ED_TYPE_TOSHIBA1) || 519 (sc->type == ED_TYPE_TOSHIBA4) || 520 (sc->type == ED_TYPE_WD8013EBT)) && 521 (sc->chip_type != ED_CHIP_TYPE_WD790)) { 522 sc->wd_laar_proto = (kvtop(sc->mem_start) >> 19) & 523 ED_WD_LAAR_ADDRHI; 524 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto); 525 } 526 } 527 528 /* 529 * Set address and enable interface shared memory. 530 */ 531 if (sc->chip_type != ED_CHIP_TYPE_WD790) { 532 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_TOSH_ETHER) { 533 ed_asic_outb(sc, ED_WD_MSR + 1, 534 ((kvtop(sc->mem_start) >> 8) & 0xe0) | 4); 535 ed_asic_outb(sc, ED_WD_MSR + 2, 536 ((kvtop(sc->mem_start) >> 16) & 0x0f)); 537 ed_asic_outb(sc, ED_WD_MSR, 538 ED_WD_MSR_MENB | ED_WD_MSR_POW); 539 } else { 540 ed_asic_outb(sc, ED_WD_MSR, 541 ((kvtop(sc->mem_start) >> 13) & 542 ED_WD_MSR_ADDR) | ED_WD_MSR_MENB); 543 } 544 sc->cr_proto = ED_CR_RD2; 545 } else { 546 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_MENB); 547 ed_asic_outb(sc, ED_WD790_HWR, (ed_asic_inb(sc, ED_WD790_HWR) | ED_WD790_HWR_SWH)); 548 ed_asic_outb(sc, ED_WD790_RAR, ((kvtop(sc->mem_start) >> 13) & 0x0f) | 549 ((kvtop(sc->mem_start) >> 11) & 0x40) | 550 (ed_asic_inb(sc, ED_WD790_RAR) & 0xb0)); 551 ed_asic_outb(sc, ED_WD790_HWR, (ed_asic_inb(sc, ED_WD790_HWR) & ~ED_WD790_HWR_SWH)); 552 sc->cr_proto = 0; 553 } 554 555#if 0 556 printf("starting memory performance test at 0x%x, size %d...\n", 557 sc->mem_start, memsize*16384); 558 for (i = 0; i < 16384; i++) 559 bzero(sc->mem_start, memsize); 560 printf("***DONE***\n"); 561#endif 562 563 /* 564 * Now zero memory and verify that it is clear 565 */ 566 bzero(sc->mem_start, memsize); 567 568 for (i = 0; i < memsize; ++i) { 569 if (sc->mem_start[i]) { 570 device_printf(dev, "failed to clear shared memory at %lx - check configuration\n", 571 kvtop(sc->mem_start + i)); 572 573 /* 574 * Disable 16 bit access to shared memory 575 */ 576 if (isa16bit) { 577 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 578 ed_asic_outb(sc, ED_WD_MSR, 0x00); 579 } 580 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto & 581 ~ED_WD_LAAR_M16EN); 582 } 583 return (ENXIO); 584 } 585 } 586 587 /* 588 * Disable 16bit access to shared memory - we leave it 589 * disabled so that 1) machines reboot properly when the board 590 * is set 16 bit mode and there are conflicting 8bit 591 * devices/ROMS in the same 128k address space as this boards 592 * shared memory. and 2) so that other 8 bit devices with 593 * shared memory can be used in this 128k region, too. 594 */ 595 if (isa16bit) { 596 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 597 ed_asic_outb(sc, ED_WD_MSR, 0x00); 598 } 599 ed_asic_outb(sc, ED_WD_LAAR, sc->wd_laar_proto & 600 ~ED_WD_LAAR_M16EN); 601 } 602 return (0); 603} 604 605int 606ed_probe_WD80x3(dev, port_rid, flags) 607 device_t dev; 608 int port_rid; 609 int flags; 610{ 611 struct ed_softc *sc = device_get_softc(dev); 612 int error; 613 static unsigned short *intr_vals[] = {ed_intr_val, ed_790_intr_val}; 614 615 error = ed_alloc_port(dev, port_rid, ED_WD_IO_PORTS); 616 if (error) 617 return (error); 618 619 sc->asic_offset = ED_WD_ASIC_OFFSET; 620 sc->nic_offset = ED_WD_NIC_OFFSET; 621 622 return ed_probe_WD80x3_generic(dev, flags, intr_vals); 623} 624 625/* 626 * Probe and vendor-specific initialization routine for 3Com 3c503 boards 627 */ 628int 629ed_probe_3Com(dev, port_rid, flags) 630 device_t dev; 631 int port_rid; 632 int flags; 633{ 634 struct ed_softc *sc = device_get_softc(dev); 635 int error; 636 int i; 637 u_int memsize; 638 u_char isa16bit; 639 u_long conf_maddr, conf_msize, irq, junk; 640 641 error = ed_alloc_port(dev, 0, ED_3COM_IO_PORTS); 642 if (error) 643 return (error); 644 645 sc->asic_offset = ED_3COM_ASIC_OFFSET; 646 sc->nic_offset = ED_3COM_NIC_OFFSET; 647 648 /* 649 * Verify that the kernel configured I/O address matches the board 650 * configured address 651 */ 652 switch (ed_asic_inb(sc, ED_3COM_BCFR)) { 653 case ED_3COM_BCFR_300: 654 if (rman_get_start(sc->port_res) != 0x300) 655 return (ENXIO); 656 break; 657 case ED_3COM_BCFR_310: 658 if (rman_get_start(sc->port_res) != 0x310) 659 return (ENXIO); 660 break; 661 case ED_3COM_BCFR_330: 662 if (rman_get_start(sc->port_res) != 0x330) 663 return (ENXIO); 664 break; 665 case ED_3COM_BCFR_350: 666 if (rman_get_start(sc->port_res) != 0x350) 667 return (ENXIO); 668 break; 669 case ED_3COM_BCFR_250: 670 if (rman_get_start(sc->port_res) != 0x250) 671 return (ENXIO); 672 break; 673 case ED_3COM_BCFR_280: 674 if (rman_get_start(sc->port_res) != 0x280) 675 return (ENXIO); 676 break; 677 case ED_3COM_BCFR_2A0: 678 if (rman_get_start(sc->port_res) != 0x2a0) 679 return (ENXIO); 680 break; 681 case ED_3COM_BCFR_2E0: 682 if (rman_get_start(sc->port_res) != 0x2e0) 683 return (ENXIO); 684 break; 685 default: 686 return (ENXIO); 687 } 688 689 error = bus_get_resource(dev, SYS_RES_MEMORY, 0, 690 &conf_maddr, &conf_msize); 691 if (error) 692 return (error); 693 694 /* 695 * Verify that the kernel shared memory address matches the board 696 * configured address. 697 */ 698 switch (ed_asic_inb(sc, ED_3COM_PCFR)) { 699 case ED_3COM_PCFR_DC000: 700 if (conf_maddr != 0xdc000) 701 return (ENXIO); 702 break; 703 case ED_3COM_PCFR_D8000: 704 if (conf_maddr != 0xd8000) 705 return (ENXIO); 706 break; 707 case ED_3COM_PCFR_CC000: 708 if (conf_maddr != 0xcc000) 709 return (ENXIO); 710 break; 711 case ED_3COM_PCFR_C8000: 712 if (conf_maddr != 0xc8000) 713 return (ENXIO); 714 break; 715 default: 716 return (ENXIO); 717 } 718 719 720 /* 721 * Reset NIC and ASIC. Enable on-board transceiver throughout reset 722 * sequence because it'll lock up if the cable isn't connected if we 723 * don't. 724 */ 725 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_RST | ED_3COM_CR_XSEL); 726 727 /* 728 * Wait for a while, then un-reset it 729 */ 730 DELAY(50); 731 732 /* 733 * The 3Com ASIC defaults to rather strange settings for the CR after 734 * a reset - it's important to set it again after the following outb 735 * (this is done when we map the PROM below). 736 */ 737 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL); 738 739 /* 740 * Wait a bit for the NIC to recover from the reset 741 */ 742 DELAY(5000); 743 744 sc->vendor = ED_VENDOR_3COM; 745 sc->type_str = "3c503"; 746 sc->mem_shared = 1; 747 sc->cr_proto = ED_CR_RD2; 748 749 /* 750 * Hmmm...a 16bit 3Com board has 16k of memory, but only an 8k window 751 * to it. 752 */ 753 memsize = 8192; 754 755 /* 756 * Get station address from on-board ROM 757 */ 758 759 /* 760 * First, map ethernet address PROM over the top of where the NIC 761 * registers normally appear. 762 */ 763 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_EALO | ED_3COM_CR_XSEL); 764 765 for (i = 0; i < ETHER_ADDR_LEN; ++i) 766 sc->arpcom.ac_enaddr[i] = ed_nic_inb(sc, i); 767 768 /* 769 * Unmap PROM - select NIC registers. The proper setting of the 770 * tranceiver is set in ed_init so that the attach code is given a 771 * chance to set the default based on a compile-time config option 772 */ 773 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL); 774 775 /* 776 * Determine if this is an 8bit or 16bit board 777 */ 778 779 /* 780 * select page 0 registers 781 */ 782 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP); 783 784 /* 785 * Attempt to clear WTS bit. If it doesn't clear, then this is a 16bit 786 * board. 787 */ 788 ed_nic_outb(sc, ED_P0_DCR, 0); 789 790 /* 791 * select page 2 registers 792 */ 793 ed_nic_outb(sc, ED_P0_CR, ED_CR_PAGE_2 | ED_CR_RD2 | ED_CR_STP); 794 795 /* 796 * The 3c503 forces the WTS bit to a one if this is a 16bit board 797 */ 798 if (ed_nic_inb(sc, ED_P2_DCR) & ED_DCR_WTS) 799 isa16bit = 1; 800 else 801 isa16bit = 0; 802 803 /* 804 * select page 0 registers 805 */ 806 ed_nic_outb(sc, ED_P2_CR, ED_CR_RD2 | ED_CR_STP); 807 808 error = ed_alloc_memory(dev, 0, memsize); 809 if (error) 810 return (error); 811 812 sc->mem_start = (caddr_t) rman_get_virtual(sc->mem_res); 813 sc->mem_size = memsize; 814 sc->mem_end = sc->mem_start + memsize; 815 816 /* 817 * We have an entire 8k window to put the transmit buffers on the 818 * 16bit boards. But since the 16bit 3c503's shared memory is only 819 * fast enough to overlap the loading of one full-size packet, trying 820 * to load more than 2 buffers can actually leave the transmitter idle 821 * during the load. So 2 seems the best value. (Although a mix of 822 * variable-sized packets might change this assumption. Nonetheless, 823 * we optimize for linear transfers of same-size packets.) 824 */ 825 if (isa16bit) { 826 if (flags & ED_FLAGS_NO_MULTI_BUFFERING) 827 sc->txb_cnt = 1; 828 else 829 sc->txb_cnt = 2; 830 831 sc->tx_page_start = ED_3COM_TX_PAGE_OFFSET_16BIT; 832 sc->rec_page_start = ED_3COM_RX_PAGE_OFFSET_16BIT; 833 sc->rec_page_stop = memsize / ED_PAGE_SIZE + 834 ED_3COM_RX_PAGE_OFFSET_16BIT; 835 sc->mem_ring = sc->mem_start; 836 } else { 837 sc->txb_cnt = 1; 838 sc->tx_page_start = ED_3COM_TX_PAGE_OFFSET_8BIT; 839 sc->rec_page_start = ED_TXBUF_SIZE + ED_3COM_TX_PAGE_OFFSET_8BIT; 840 sc->rec_page_stop = memsize / ED_PAGE_SIZE + 841 ED_3COM_TX_PAGE_OFFSET_8BIT; 842 sc->mem_ring = sc->mem_start + (ED_PAGE_SIZE * ED_TXBUF_SIZE); 843 } 844 845 sc->isa16bit = isa16bit; 846 847 /* 848 * Initialize GA page start/stop registers. Probably only needed if 849 * doing DMA, but what the hell. 850 */ 851 ed_asic_outb(sc, ED_3COM_PSTR, sc->rec_page_start); 852 ed_asic_outb(sc, ED_3COM_PSPR, sc->rec_page_stop); 853 854 /* 855 * Set IRQ. 3c503 only allows a choice of irq 2-5. 856 */ 857 error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk); 858 if (error) 859 return (error); 860 861 switch (irq) { 862 case 2: 863 case 9: 864 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ2); 865 break; 866 case 3: 867 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ3); 868 break; 869 case 4: 870 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ4); 871 break; 872 case 5: 873 ed_asic_outb(sc, ED_3COM_IDCFR, ED_3COM_IDCFR_IRQ5); 874 break; 875 default: 876 device_printf(dev, "Invalid irq configuration (%ld) must be 3-5,9 for 3c503\n", 877 irq); 878 return (ENXIO); 879 } 880 881 /* 882 * Initialize GA configuration register. Set bank and enable shared 883 * mem. 884 */ 885 ed_asic_outb(sc, ED_3COM_GACFR, ED_3COM_GACFR_RSEL | 886 ED_3COM_GACFR_MBS0); 887 888 /* 889 * Initialize "Vector Pointer" registers. These gawd-awful things are 890 * compared to 20 bits of the address on ISA, and if they match, the 891 * shared memory is disabled. We set them to 0xffff0...allegedly the 892 * reset vector. 893 */ 894 ed_asic_outb(sc, ED_3COM_VPTR2, 0xff); 895 ed_asic_outb(sc, ED_3COM_VPTR1, 0xff); 896 ed_asic_outb(sc, ED_3COM_VPTR0, 0x00); 897 898 /* 899 * Zero memory and verify that it is clear 900 */ 901 bzero(sc->mem_start, memsize); 902 903 for (i = 0; i < memsize; ++i) 904 if (sc->mem_start[i]) { 905 device_printf(dev, "failed to clear shared memory at %lx - check configuration\n", 906 kvtop(sc->mem_start + i)); 907 return (ENXIO); 908 } 909 return (0); 910} 911 912/* 913 * Probe and vendor-specific initialization routine for NE1000/2000 boards 914 */ 915int 916ed_probe_Novell_generic(dev, flags) 917 device_t dev; 918 int flags; 919{ 920 struct ed_softc *sc = device_get_softc(dev); 921 u_int memsize, n; 922 u_char romdata[16], tmp; 923 static char test_pattern[32] = "THIS is A memory TEST pattern"; 924 char test_buffer[32]; 925 926 /* XXX - do Novell-specific probe here */ 927 928 /* Reset the board */ 929 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) { 930 ed_asic_outb(sc, ED_NOVELL_RESET, 0); 931 DELAY(200); 932 } 933 tmp = ed_asic_inb(sc, ED_NOVELL_RESET); 934 935 /* 936 * I don't know if this is necessary; probably cruft leftover from 937 * Clarkson packet driver code. Doesn't do a thing on the boards I've 938 * tested. -DG [note that a outb(0x84, 0) seems to work here, and is 939 * non-invasive...but some boards don't seem to reset and I don't have 940 * complete documentation on what the 'right' thing to do is...so we 941 * do the invasive thing for now. Yuck.] 942 */ 943 ed_asic_outb(sc, ED_NOVELL_RESET, tmp); 944 DELAY(5000); 945 946 /* 947 * This is needed because some NE clones apparently don't reset the 948 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX 949 * - this makes the probe invasive! ...Done against my better 950 * judgement. -DLG 951 */ 952 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP); 953 954 DELAY(5000); 955 956 /* Make sure that we really have an 8390 based board */ 957 if (!ed_probe_generic8390(sc)) 958 return (ENXIO); 959 960 sc->vendor = ED_VENDOR_NOVELL; 961 sc->mem_shared = 0; 962 sc->cr_proto = ED_CR_RD2; 963 964 /* 965 * Test the ability to read and write to the NIC memory. This has the 966 * side affect of determining if this is an NE1000 or an NE2000. 967 */ 968 969 /* 970 * This prevents packets from being stored in the NIC memory when the 971 * readmem routine turns on the start bit in the CR. 972 */ 973 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON); 974 975 /* Temporarily initialize DCR for byte operations */ 976 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS); 977 978 ed_nic_outb(sc, ED_P0_PSTART, 8192 / ED_PAGE_SIZE); 979 ed_nic_outb(sc, ED_P0_PSTOP, 16384 / ED_PAGE_SIZE); 980 981 sc->isa16bit = 0; 982 983 /* 984 * Write a test pattern in byte mode. If this fails, then there 985 * probably isn't any memory at 8k - which likely means that the board 986 * is an NE2000. 987 */ 988 ed_pio_writemem(sc, test_pattern, 8192, sizeof(test_pattern)); 989 ed_pio_readmem(sc, 8192, test_buffer, sizeof(test_pattern)); 990 991 if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) { 992 sc->type = ED_TYPE_NE1000; 993 sc->type_str = "NE1000"; 994 } else { 995 996 /* neither an NE1000 nor a Linksys - try NE2000 */ 997 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS); 998 ed_nic_outb(sc, ED_P0_PSTART, 16384 / ED_PAGE_SIZE); 999 ed_nic_outb(sc, ED_P0_PSTOP, 32768 / ED_PAGE_SIZE); 1000 1001 sc->isa16bit = 1; 1002 1003 /* 1004 * Write a test pattern in word mode. If this also fails, then 1005 * we don't know what this board is. 1006 */ 1007 ed_pio_writemem(sc, test_pattern, 16384, sizeof(test_pattern)); 1008 ed_pio_readmem(sc, 16384, test_buffer, sizeof(test_pattern)); 1009 if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) { 1010 sc->type = ED_TYPE_NE2000; 1011 sc->type_str = "NE2000"; 1012 } else { 1013 return (ENXIO); 1014 } 1015 } 1016 1017 1018 /* 8k of memory plus an additional 8k if 16bit */ 1019 memsize = 8192 + sc->isa16bit * 8192; 1020 1021#if 0 /* probably not useful - NE boards only come two ways */ 1022 /* allow kernel config file overrides */ 1023 if (isa_dev->id_msize) 1024 memsize = isa_dev->id_msize; 1025#endif 1026 1027 sc->mem_size = memsize; 1028 1029 /* NIC memory doesn't start at zero on an NE board */ 1030 /* The start address is tied to the bus width */ 1031 sc->mem_start = (char *) 8192 + sc->isa16bit * 8192; 1032 sc->mem_end = sc->mem_start + memsize; 1033 sc->tx_page_start = memsize / ED_PAGE_SIZE; 1034 1035 if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) { 1036 int x, i, mstart = 0, msize = 0; 1037 char pbuf0[ED_PAGE_SIZE], pbuf[ED_PAGE_SIZE], tbuf[ED_PAGE_SIZE]; 1038 1039 for (i = 0; i < ED_PAGE_SIZE; i++) 1040 pbuf0[i] = 0; 1041 1042 /* Clear all the memory. */ 1043 for (x = 1; x < 256; x++) 1044 ed_pio_writemem(sc, pbuf0, x * 256, ED_PAGE_SIZE); 1045 1046 /* Search for the start of RAM. */ 1047 for (x = 1; x < 256; x++) { 1048 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE); 1049 if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) { 1050 for (i = 0; i < ED_PAGE_SIZE; i++) 1051 pbuf[i] = 255 - x; 1052 ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE); 1053 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE); 1054 if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0) { 1055 mstart = x * ED_PAGE_SIZE; 1056 msize = ED_PAGE_SIZE; 1057 break; 1058 } 1059 } 1060 } 1061 1062 if (mstart == 0) { 1063 device_printf(dev, "Cannot find start of RAM.\n"); 1064 return (ENXIO); 1065 } 1066 /* Search for the start of RAM. */ 1067 for (x = (mstart / ED_PAGE_SIZE) + 1; x < 256; x++) { 1068 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE); 1069 if (bcmp(pbuf0, tbuf, ED_PAGE_SIZE) == 0) { 1070 for (i = 0; i < ED_PAGE_SIZE; i++) 1071 pbuf[i] = 255 - x; 1072 ed_pio_writemem(sc, pbuf, x * 256, ED_PAGE_SIZE); 1073 ed_pio_readmem(sc, x * 256, tbuf, ED_PAGE_SIZE); 1074 if (bcmp(pbuf, tbuf, ED_PAGE_SIZE) == 0) 1075 msize += ED_PAGE_SIZE; 1076 else { 1077 break; 1078 } 1079 } else { 1080 break; 1081 } 1082 } 1083 1084 if (msize == 0) { 1085 device_printf(dev, "Cannot find any RAM, start : %d, x = %d.\n", mstart, x); 1086 return (ENXIO); 1087 } 1088 device_printf(dev, "RAM start at %d, size : %d.\n", mstart, msize); 1089 1090 sc->mem_size = msize; 1091 sc->mem_start = (caddr_t) mstart; 1092 sc->mem_end = (caddr_t) (msize + mstart); 1093 sc->tx_page_start = mstart / ED_PAGE_SIZE; 1094 } 1095 1096 /* 1097 * Use one xmit buffer if < 16k, two buffers otherwise (if not told 1098 * otherwise). 1099 */ 1100 if ((memsize < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING)) 1101 sc->txb_cnt = 1; 1102 else 1103 sc->txb_cnt = 2; 1104 1105 sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE; 1106 sc->rec_page_stop = sc->tx_page_start + memsize / ED_PAGE_SIZE; 1107 1108 sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE; 1109 1110 ed_pio_readmem(sc, 0, romdata, 16); 1111 for (n = 0; n < ETHER_ADDR_LEN; n++) 1112 sc->arpcom.ac_enaddr[n] = romdata[n * (sc->isa16bit + 1)]; 1113 1114 if ((ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) && 1115 (sc->arpcom.ac_enaddr[2] == 0x86)) { 1116 sc->type_str = "Gateway AT"; 1117 } 1118 1119 /* clear any pending interrupts that might have occurred above */ 1120 ed_nic_outb(sc, ED_P0_ISR, 0xff); 1121 1122 return (0); 1123} 1124 1125int 1126ed_probe_Novell(dev, port_rid, flags) 1127 device_t dev; 1128 int port_rid; 1129 int flags; 1130{ 1131 struct ed_softc *sc = device_get_softc(dev); 1132 int error; 1133 1134 error = ed_alloc_port(dev, port_rid, ED_NOVELL_IO_PORTS); 1135 if (error) 1136 return (error); 1137 1138 sc->asic_offset = ED_NOVELL_ASIC_OFFSET; 1139 sc->nic_offset = ED_NOVELL_NIC_OFFSET; 1140 1141 return ed_probe_Novell_generic(dev, flags); 1142} 1143 1144#define ED_HPP_TEST_SIZE 16 1145 1146/* 1147 * Probe and vendor specific initialization for the HP PC Lan+ Cards. 1148 * (HP Part nos: 27247B and 27252A). 1149 * 1150 * The card has an asic wrapper around a DS8390 core. The asic handles 1151 * host accesses and offers both standard register IO and memory mapped 1152 * IO. Memory mapped I/O allows better performance at the expense of greater 1153 * chance of an incompatibility with existing ISA cards. 1154 * 1155 * The card has a few caveats: it isn't tolerant of byte wide accesses, only 1156 * short (16 bit) or word (32 bit) accesses are allowed. Some card revisions 1157 * don't allow 32 bit accesses; these are indicated by a bit in the software 1158 * ID register (see if_edreg.h). 1159 * 1160 * Other caveats are: we should read the MAC address only when the card 1161 * is inactive. 1162 * 1163 * For more information; please consult the CRYNWR packet driver. 1164 * 1165 * The AUI port is turned on using the "link2" option on the ifconfig 1166 * command line. 1167 */ 1168int 1169ed_probe_HP_pclanp(dev, port_rid, flags) 1170 device_t dev; 1171 int port_rid; 1172 int flags; 1173{ 1174 struct ed_softc *sc = device_get_softc(dev); 1175 int error; 1176 int n; /* temp var */ 1177 int memsize; /* mem on board */ 1178 u_char checksum; /* checksum of board address */ 1179 u_char irq; /* board configured IRQ */ 1180 char test_pattern[ED_HPP_TEST_SIZE]; /* read/write areas for */ 1181 char test_buffer[ED_HPP_TEST_SIZE]; /* probing card */ 1182 u_long conf_maddr, conf_msize, conf_irq, junk; 1183 1184 error = ed_alloc_port(dev, 0, ED_HPP_IO_PORTS); 1185 if (error) 1186 return (error); 1187 1188 /* Fill in basic information */ 1189 sc->asic_offset = ED_HPP_ASIC_OFFSET; 1190 sc->nic_offset = ED_HPP_NIC_OFFSET; 1191 1192 sc->chip_type = ED_CHIP_TYPE_DP8390; 1193 sc->isa16bit = 0; /* the 8390 core needs to be in byte mode */ 1194 1195 /* 1196 * Look for the HP PCLAN+ signature: "0x50,0x48,0x00,0x53" 1197 */ 1198 1199 if ((ed_asic_inb(sc, ED_HPP_ID) != 0x50) || 1200 (ed_asic_inb(sc, ED_HPP_ID + 1) != 0x48) || 1201 ((ed_asic_inb(sc, ED_HPP_ID + 2) & 0xF0) != 0) || 1202 (ed_asic_inb(sc, ED_HPP_ID + 3) != 0x53)) 1203 return ENXIO; 1204 1205 /* 1206 * Read the MAC address and verify checksum on the address. 1207 */ 1208 1209 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_MAC); 1210 for (n = 0, checksum = 0; n < ETHER_ADDR_LEN; n++) 1211 checksum += (sc->arpcom.ac_enaddr[n] = 1212 ed_asic_inb(sc, ED_HPP_MAC_ADDR + n)); 1213 1214 checksum += ed_asic_inb(sc, ED_HPP_MAC_ADDR + ETHER_ADDR_LEN); 1215 1216 if (checksum != 0xFF) 1217 return ENXIO; 1218 1219 /* 1220 * Verify that the software model number is 0. 1221 */ 1222 1223 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_ID); 1224 if (((sc->hpp_id = ed_asic_inw(sc, ED_HPP_PAGE_4)) & 1225 ED_HPP_ID_SOFT_MODEL_MASK) != 0x0000) 1226 return ENXIO; 1227 1228 /* 1229 * Read in and save the current options configured on card. 1230 */ 1231 1232 sc->hpp_options = ed_asic_inw(sc, ED_HPP_OPTION); 1233 1234 sc->hpp_options |= (ED_HPP_OPTION_NIC_RESET | 1235 ED_HPP_OPTION_CHIP_RESET | 1236 ED_HPP_OPTION_ENABLE_IRQ); 1237 1238 /* 1239 * Reset the chip. This requires writing to the option register 1240 * so take care to preserve the other bits. 1241 */ 1242 1243 ed_asic_outw(sc, ED_HPP_OPTION, 1244 (sc->hpp_options & ~(ED_HPP_OPTION_NIC_RESET | 1245 ED_HPP_OPTION_CHIP_RESET))); 1246 1247 DELAY(5000); /* wait for chip reset to complete */ 1248 1249 ed_asic_outw(sc, ED_HPP_OPTION, 1250 (sc->hpp_options | (ED_HPP_OPTION_NIC_RESET | 1251 ED_HPP_OPTION_CHIP_RESET | 1252 ED_HPP_OPTION_ENABLE_IRQ))); 1253 1254 DELAY(5000); 1255 1256 if (!(ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST)) 1257 return ENXIO; /* reset did not complete */ 1258 1259 /* 1260 * Read out configuration information. 1261 */ 1262 1263 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW); 1264 1265 irq = ed_asic_inb(sc, ED_HPP_HW_IRQ); 1266 1267 /* 1268 * Check for impossible IRQ. 1269 */ 1270 1271 if (irq >= (sizeof(ed_hpp_intr_val) / sizeof(ed_hpp_intr_val[0]))) 1272 return ENXIO; 1273 1274 /* 1275 * If the kernel IRQ was specified with a '?' use the cards idea 1276 * of the IRQ. If the kernel IRQ was explicitly specified, it 1277 * should match that of the hardware. 1278 */ 1279 error = bus_get_resource(dev, SYS_RES_IRQ, 0, 1280 &conf_irq, &junk); 1281 if (error) { 1282 bus_set_resource(dev, SYS_RES_IRQ, 0, 1283 ed_hpp_intr_val[irq], 1); 1284 } else { 1285 if (conf_irq != ed_hpp_intr_val[irq]) 1286 return (ENXIO); 1287 } 1288 1289 /* 1290 * Fill in softconfig info. 1291 */ 1292 1293 sc->vendor = ED_VENDOR_HP; 1294 sc->type = ED_TYPE_HP_PCLANPLUS; 1295 sc->type_str = "HP-PCLAN+"; 1296 1297 sc->mem_shared = 0; /* we DON'T have dual ported RAM */ 1298 sc->mem_start = 0; /* we use offsets inside the card RAM */ 1299 1300 sc->hpp_mem_start = NULL;/* no memory mapped I/O by default */ 1301 1302 /* 1303 * The board has 32KB of memory. Is there a way to determine 1304 * this programmatically? 1305 */ 1306 1307 memsize = 32768; 1308 1309 /* 1310 * Check if memory mapping of the I/O registers possible. 1311 */ 1312 1313 if (sc->hpp_options & ED_HPP_OPTION_MEM_ENABLE) 1314 { 1315 u_long mem_addr; 1316 1317 /* 1318 * determine the memory address from the board. 1319 */ 1320 1321 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW); 1322 mem_addr = (ed_asic_inw(sc, ED_HPP_HW_MEM_MAP) << 8); 1323 1324 /* 1325 * Check that the kernel specified start of memory and 1326 * hardware's idea of it match. 1327 */ 1328 error = bus_get_resource(dev, SYS_RES_MEMORY, 0, 1329 &conf_maddr, &conf_msize); 1330 if (error) 1331 return (error); 1332 1333 if (mem_addr != conf_maddr) 1334 return ENXIO; 1335 1336 error = ed_alloc_memory(dev, 0, memsize); 1337 if (error) 1338 return (error); 1339 1340 sc->hpp_mem_start = rman_get_virtual(sc->mem_res); 1341 } 1342 1343 /* 1344 * Fill in the rest of the soft config structure. 1345 */ 1346 1347 /* 1348 * The transmit page index. 1349 */ 1350 1351 sc->tx_page_start = ED_HPP_TX_PAGE_OFFSET; 1352 1353 if (device_get_flags(dev) & ED_FLAGS_NO_MULTI_BUFFERING) 1354 sc->txb_cnt = 1; 1355 else 1356 sc->txb_cnt = 2; 1357 1358 /* 1359 * Memory description 1360 */ 1361 1362 sc->mem_size = memsize; 1363 sc->mem_ring = sc->mem_start + 1364 (sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE); 1365 sc->mem_end = sc->mem_start + sc->mem_size; 1366 1367 /* 1368 * Receive area starts after the transmit area and 1369 * continues till the end of memory. 1370 */ 1371 1372 sc->rec_page_start = sc->tx_page_start + 1373 (sc->txb_cnt * ED_TXBUF_SIZE); 1374 sc->rec_page_stop = (sc->mem_size / ED_PAGE_SIZE); 1375 1376 1377 sc->cr_proto = 0; /* value works */ 1378 1379 /* 1380 * Set the wrap registers for string I/O reads. 1381 */ 1382 1383 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_HW); 1384 ed_asic_outw(sc, ED_HPP_HW_WRAP, 1385 ((sc->rec_page_start / ED_PAGE_SIZE) | 1386 (((sc->rec_page_stop / ED_PAGE_SIZE) - 1) << 8))); 1387 1388 /* 1389 * Reset the register page to normal operation. 1390 */ 1391 1392 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_PERF); 1393 1394 /* 1395 * Verify that we can read/write from adapter memory. 1396 * Create test pattern. 1397 */ 1398 1399 for (n = 0; n < ED_HPP_TEST_SIZE; n++) 1400 { 1401 test_pattern[n] = (n*n) ^ ~n; 1402 } 1403 1404#undef ED_HPP_TEST_SIZE 1405 1406 /* 1407 * Check that the memory is accessible thru the I/O ports. 1408 * Write out the contents of "test_pattern", read back 1409 * into "test_buffer" and compare the two for any 1410 * mismatch. 1411 */ 1412 1413 for (n = 0; n < (32768 / ED_PAGE_SIZE); n ++) { 1414 1415 ed_hpp_writemem(sc, test_pattern, (n * ED_PAGE_SIZE), 1416 sizeof(test_pattern)); 1417 ed_hpp_readmem(sc, (n * ED_PAGE_SIZE), 1418 test_buffer, sizeof(test_pattern)); 1419 1420 if (bcmp(test_pattern, test_buffer, 1421 sizeof(test_pattern))) 1422 return ENXIO; 1423 } 1424 1425 return (ED_HPP_IO_PORTS); 1426 1427} 1428 1429/* 1430 * HP PC Lan+ : Set the physical link to use AUI or TP/TL. 1431 */ 1432 1433void 1434ed_hpp_set_physical_link(struct ed_softc *sc) 1435{ 1436 struct ifnet *ifp = &sc->arpcom.ac_if; 1437 int lan_page; 1438 1439 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN); 1440 lan_page = ed_asic_inw(sc, ED_HPP_PAGE_0); 1441 1442 if (ifp->if_flags & IFF_ALTPHYS) { 1443 1444 /* 1445 * Use the AUI port. 1446 */ 1447 1448 lan_page |= ED_HPP_LAN_AUI; 1449 1450 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN); 1451 ed_asic_outw(sc, ED_HPP_PAGE_0, lan_page); 1452 1453 1454 } else { 1455 1456 /* 1457 * Use the ThinLan interface 1458 */ 1459 1460 lan_page &= ~ED_HPP_LAN_AUI; 1461 1462 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_LAN); 1463 ed_asic_outw(sc, ED_HPP_PAGE_0, lan_page); 1464 1465 } 1466 1467 /* 1468 * Wait for the lan card to re-initialize itself 1469 */ 1470 1471 DELAY(150000); /* wait 150 ms */ 1472 1473 /* 1474 * Restore normal pages. 1475 */ 1476 1477 ed_asic_outw(sc, ED_HPP_PAGING, ED_HPP_PAGE_PERF); 1478 1479} 1480 1481/* 1482 * Allocate a port resource with the given resource id. 1483 */ 1484int 1485ed_alloc_port(dev, rid, size) 1486 device_t dev; 1487 int rid; 1488 int size; 1489{ 1490 struct ed_softc *sc = device_get_softc(dev); 1491 struct resource *res; 1492 1493 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 1494 0ul, ~0ul, size, RF_ACTIVE); 1495 if (res) { 1496 sc->port_rid = rid; 1497 sc->port_res = res; 1498 sc->port_used = size; 1499 return (0); 1500 } else { 1501 return (ENOENT); 1502 } 1503} 1504 1505/* 1506 * Allocate a memory resource with the given resource id. 1507 */ 1508int 1509ed_alloc_memory(dev, rid, size) 1510 device_t dev; 1511 int rid; 1512 int size; 1513{ 1514 struct ed_softc *sc = device_get_softc(dev); 1515 struct resource *res; 1516 1517 res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 1518 0ul, ~0ul, size, RF_ACTIVE); 1519 if (res) { 1520 sc->mem_rid = rid; 1521 sc->mem_res = res; 1522 sc->mem_used = size; 1523 return (0); 1524 } else { 1525 return (ENOENT); 1526 } 1527} 1528 1529/* 1530 * Allocate an irq resource with the given resource id. 1531 */ 1532int 1533ed_alloc_irq(dev, rid, flags) 1534 device_t dev; 1535 int rid; 1536 int flags; 1537{ 1538 struct ed_softc *sc = device_get_softc(dev); 1539 struct resource *res; 1540 1541 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 1542 0ul, ~0ul, 1, (RF_ACTIVE | flags)); 1543 if (res) { 1544 sc->irq_rid = rid; 1545 sc->irq_res = res; 1546 return (0); 1547 } else { 1548 return (ENOENT); 1549 } 1550} 1551 1552/* 1553 * Release all resources 1554 */ 1555void 1556ed_release_resources(dev) 1557 device_t dev; 1558{ 1559 struct ed_softc *sc = device_get_softc(dev); 1560 1561 if (sc->port_res) { 1562 bus_deactivate_resource(dev, SYS_RES_IOPORT, 1563 sc->port_rid, sc->port_res); 1564 bus_release_resource(dev, SYS_RES_IOPORT, 1565 sc->port_rid, sc->port_res); 1566 sc->port_res = 0; 1567 } 1568 if (sc->mem_res) { 1569 bus_deactivate_resource(dev, SYS_RES_MEMORY, 1570 sc->mem_rid, sc->mem_res); 1571 bus_release_resource(dev, SYS_RES_MEMORY, 1572 sc->mem_rid, sc->mem_res); 1573 sc->mem_res = 0; 1574 } 1575 if (sc->irq_res) { 1576 bus_deactivate_resource(dev, SYS_RES_IRQ, 1577 sc->irq_rid, sc->irq_res); 1578 bus_release_resource(dev, SYS_RES_IRQ, 1579 sc->irq_rid, sc->irq_res); 1580 sc->irq_res = 0; 1581 } 1582} 1583 1584/* 1585 * Install interface into kernel networking data structures 1586 */ 1587int 1588ed_attach(sc, unit, flags) 1589 struct ed_softc *sc; 1590 int unit; 1591 int flags; 1592{ 1593 struct ifnet *ifp = &sc->arpcom.ac_if; 1594
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1595 callout_handle_init(&sc->tick_ch); |
1596 /* 1597 * Set interface to stopped condition (reset) 1598 */ 1599 ed_stop(sc); 1600 1601 if (!ifp->if_name) { 1602 /* 1603 * Initialize ifnet structure 1604 */ 1605 ifp->if_softc = sc; 1606 ifp->if_unit = unit; 1607 ifp->if_name = "ed"; 1608 ifp->if_output = ether_output; 1609 ifp->if_start = ed_start; 1610 ifp->if_ioctl = ed_ioctl; 1611 ifp->if_watchdog = ed_watchdog; 1612 ifp->if_init = ed_init; 1613 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 1614 ifp->if_linkmib = &sc->mibdata; 1615 ifp->if_linkmiblen = sizeof sc->mibdata; 1616 /* 1617 * XXX - should do a better job. 1618 */ 1619 if (sc->chip_type == ED_CHIP_TYPE_WD790) 1620 sc->mibdata.dot3StatsEtherChipSet = 1621 DOT3CHIPSET(dot3VendorWesternDigital, 1622 dot3ChipSetWesternDigital83C790); 1623 else 1624 sc->mibdata.dot3StatsEtherChipSet = 1625 DOT3CHIPSET(dot3VendorNational, 1626 dot3ChipSetNational8390); 1627 sc->mibdata.dot3Compliance = DOT3COMPLIANCE_COLLS; 1628 1629 /* 1630 * Set default state for ALTPHYS flag (used to disable the 1631 * tranceiver for AUI operation), based on compile-time 1632 * config option. 1633 */ 1634 if (flags & ED_FLAGS_DISABLE_TRANCEIVER) 1635 ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | 1636 IFF_MULTICAST | IFF_ALTPHYS); 1637 else 1638 ifp->if_flags = (IFF_BROADCAST | IFF_SIMPLEX | 1639 IFF_MULTICAST); 1640 1641 /* 1642 * Attach the interface 1643 */ 1644 ether_ifattach(ifp, ETHER_BPF_SUPPORTED); 1645 } 1646 /* device attach does transition from UNCONFIGURED to IDLE state */ 1647 1648 /* 1649 * Print additional info when attached 1650 */ 1651 printf("%s%d: address %6D, ", ifp->if_name, ifp->if_unit, 1652 sc->arpcom.ac_enaddr, ":"); 1653 1654 if (sc->type_str && (*sc->type_str != 0)) 1655 printf("type %s ", sc->type_str); 1656 else 1657 printf("type unknown (0x%x) ", sc->type); 1658 1659 if (sc->vendor == ED_VENDOR_HP) 1660 printf("(%s %s IO)", (sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS) ? 1661 "16-bit" : "32-bit", 1662 sc->hpp_mem_start ? "memory mapped" : "regular"); 1663 else 1664 printf("%s ", sc->isa16bit ? "(16 bit)" : "(8 bit)"); 1665 1666 printf("%s\n", (((sc->vendor == ED_VENDOR_3COM) || 1667 (sc->vendor == ED_VENDOR_HP)) && 1668 (ifp->if_flags & IFF_ALTPHYS)) ? " tranceiver disabled" : ""); 1669 1670 return (0); 1671} 1672 1673/* 1674 * Reset interface. 1675 */ 1676static void 1677ed_reset(ifp) 1678 struct ifnet *ifp; 1679{ 1680 struct ed_softc *sc = ifp->if_softc; 1681 int s; 1682 1683 if (sc->gone) 1684 return; 1685 s = splimp(); 1686 1687 /* 1688 * Stop interface and re-initialize. 1689 */ 1690 ed_stop(sc); 1691 ed_init(sc); 1692 1693 (void) splx(s); 1694} 1695 1696/* 1697 * Take interface offline. 1698 */ 1699void 1700ed_stop(sc) 1701 struct ed_softc *sc; 1702{ 1703 int n = 5000; 1704
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1705 untimeout(ed_tick, sc, sc->tick_ch); 1706 callout_handle_init(&sc->tick_ch); |
1707 if (sc->gone) 1708 return; 1709 /* 1710 * Stop everything on the interface, and select page 0 registers. 1711 */ 1712 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP); 1713 1714 /* 1715 * Wait for interface to enter stopped state, but limit # of checks to 1716 * 'n' (about 5ms). It shouldn't even take 5us on modern DS8390's, but 1717 * just in case it's an old one. 1718 */ 1719 if (sc->chip_type != ED_CHIP_TYPE_AX88190) 1720 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RST) == 0) && --n); 1721} 1722 1723/* 1724 * Device timeout/watchdog routine. Entered if the device neglects to 1725 * generate an interrupt after a transmit has been started on it. 1726 */ 1727static void 1728ed_watchdog(ifp) 1729 struct ifnet *ifp; 1730{ 1731 struct ed_softc *sc = ifp->if_softc; 1732 1733 if (sc->gone) 1734 return; 1735 log(LOG_ERR, "ed%d: device timeout\n", ifp->if_unit); 1736 ifp->if_oerrors++; 1737 1738 ed_reset(ifp); 1739} 1740
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1741static void 1742ed_tick(arg) 1743 void *arg; 1744{ 1745 struct ed_softc *sc = arg; 1746 struct mii_data *mii; 1747 int s; 1748 1749 if (sc->gone) { 1750 callout_handle_init(&sc->tick_ch); 1751 return; 1752 } 1753 s = splimp(); 1754 if (sc->miibus != NULL) { 1755 mii = device_get_softc(sc->miibus); 1756 mii_tick(mii); 1757 } 1758 sc->tick_ch = timeout(ed_tick, sc, hz); 1759 splx(s); 1760} 1761 |
1762/* 1763 * Initialize device. 1764 */ 1765static void 1766ed_init(xsc) 1767 void *xsc; 1768{ 1769 struct ed_softc *sc = xsc; 1770 struct ifnet *ifp = &sc->arpcom.ac_if; 1771 int i, s; 1772 1773 if (sc->gone) 1774 return; 1775 1776 /* address not known */ 1777 if (TAILQ_EMPTY(&ifp->if_addrhead)) /* unlikely? XXX */ 1778 return; 1779 1780 /* 1781 * Initialize the NIC in the exact order outlined in the NS manual. 1782 * This init procedure is "mandatory"...don't change what or when 1783 * things happen. 1784 */ 1785 s = splimp(); 1786 1787 /* reset transmitter flags */ 1788 sc->xmit_busy = 0; 1789 ifp->if_timer = 0; 1790 1791 sc->txb_inuse = 0; 1792 sc->txb_new = 0; 1793 sc->txb_next_tx = 0; 1794 1795 /* This variable is used below - don't move this assignment */ 1796 sc->next_packet = sc->rec_page_start + 1; 1797 1798 /* 1799 * Set interface for page 0, Remote DMA complete, Stopped 1800 */ 1801 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP); 1802 1803 if (sc->isa16bit) { 1804 1805 /* 1806 * Set FIFO threshold to 8, No auto-init Remote DMA, byte 1807 * order=80x86, word-wide DMA xfers, 1808 */ 1809 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_WTS | ED_DCR_LS); 1810 } else { 1811 1812 /* 1813 * Same as above, but byte-wide DMA xfers 1814 */ 1815 ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS); 1816 } 1817 1818 /* 1819 * Clear Remote Byte Count Registers 1820 */ 1821 ed_nic_outb(sc, ED_P0_RBCR0, 0); 1822 ed_nic_outb(sc, ED_P0_RBCR1, 0); 1823 1824 /* 1825 * For the moment, don't store incoming packets in memory. 1826 */ 1827 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON); 1828 1829 /* 1830 * Place NIC in internal loopback mode 1831 */ 1832 ed_nic_outb(sc, ED_P0_TCR, ED_TCR_LB0); 1833 1834 /* 1835 * Initialize transmit/receive (ring-buffer) Page Start 1836 */ 1837 ed_nic_outb(sc, ED_P0_TPSR, sc->tx_page_start); 1838 ed_nic_outb(sc, ED_P0_PSTART, sc->rec_page_start); 1839 /* Set lower bits of byte addressable framing to 0 */ 1840 if (sc->chip_type == ED_CHIP_TYPE_WD790) 1841 ed_nic_outb(sc, 0x09, 0); 1842 1843 /* 1844 * Initialize Receiver (ring-buffer) Page Stop and Boundry 1845 */ 1846 ed_nic_outb(sc, ED_P0_PSTOP, sc->rec_page_stop); 1847 ed_nic_outb(sc, ED_P0_BNRY, sc->rec_page_start); 1848 1849 /* 1850 * Clear all interrupts. A '1' in each bit position clears the 1851 * corresponding flag. 1852 */ 1853 ed_nic_outb(sc, ED_P0_ISR, 0xff); 1854 1855 /* 1856 * Enable the following interrupts: receive/transmit complete, 1857 * receive/transmit error, and Receiver OverWrite. 1858 * 1859 * Counter overflow and Remote DMA complete are *not* enabled. 1860 */ 1861 ed_nic_outb(sc, ED_P0_IMR, 1862 ED_IMR_PRXE | ED_IMR_PTXE | ED_IMR_RXEE | ED_IMR_TXEE | ED_IMR_OVWE); 1863 1864 /* 1865 * Program Command Register for page 1 1866 */ 1867 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STP); 1868 1869 /* 1870 * Copy out our station address 1871 */ 1872 for (i = 0; i < ETHER_ADDR_LEN; ++i) 1873 ed_nic_outb(sc, ED_P1_PAR(i), sc->arpcom.ac_enaddr[i]); 1874 1875 /* 1876 * Set Current Page pointer to next_packet (initialized above) 1877 */ 1878 ed_nic_outb(sc, ED_P1_CURR, sc->next_packet); 1879 1880 /* 1881 * Program Receiver Configuration Register and multicast filter. CR is 1882 * set to page 0 on return. 1883 */ 1884 ed_setrcr(sc); 1885 1886 /* 1887 * Take interface out of loopback 1888 */ 1889 ed_nic_outb(sc, ED_P0_TCR, 0); 1890 1891 /* 1892 * If this is a 3Com board, the tranceiver must be software enabled 1893 * (there is no settable hardware default). 1894 */ 1895 if (sc->vendor == ED_VENDOR_3COM) { 1896 if (ifp->if_flags & IFF_ALTPHYS) { 1897 ed_asic_outb(sc, ED_3COM_CR, 0); 1898 } else { 1899 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL); 1900 } 1901 } 1902
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1903 if (sc->miibus != NULL) { 1904 struct mii_data *mii; 1905 mii = device_get_softc(sc->miibus); 1906 mii_mediachg(mii); 1907 } |
1908 /* 1909 * Set 'running' flag, and clear output active flag. 1910 */ 1911 ifp->if_flags |= IFF_RUNNING; 1912 ifp->if_flags &= ~IFF_OACTIVE; 1913 1914 /* 1915 * ...and attempt to start output 1916 */ 1917 ed_start(ifp); 1918
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1919 untimeout(ed_tick, sc, sc->tick_ch); 1920 sc->tick_ch = timeout(ed_tick, sc, hz); |
1921 (void) splx(s); 1922} 1923 1924/* 1925 * This routine actually starts the transmission on the interface 1926 */ 1927static __inline void 1928ed_xmit(sc) 1929 struct ed_softc *sc; 1930{ 1931 struct ifnet *ifp = (struct ifnet *)sc; 1932 unsigned short len; 1933 1934 if (sc->gone) 1935 return; 1936 len = sc->txb_len[sc->txb_next_tx]; 1937 1938 /* 1939 * Set NIC for page 0 register access 1940 */ 1941 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 1942 1943 /* 1944 * Set TX buffer start page 1945 */ 1946 ed_nic_outb(sc, ED_P0_TPSR, sc->tx_page_start + 1947 sc->txb_next_tx * ED_TXBUF_SIZE); 1948 1949 /* 1950 * Set TX length 1951 */ 1952 ed_nic_outb(sc, ED_P0_TBCR0, len); 1953 ed_nic_outb(sc, ED_P0_TBCR1, len >> 8); 1954 1955 /* 1956 * Set page 0, Remote DMA complete, Transmit Packet, and *Start* 1957 */ 1958 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_TXP | ED_CR_STA); 1959 sc->xmit_busy = 1; 1960 1961 /* 1962 * Point to next transmit buffer slot and wrap if necessary. 1963 */ 1964 sc->txb_next_tx++; 1965 if (sc->txb_next_tx == sc->txb_cnt) 1966 sc->txb_next_tx = 0; 1967 1968 /* 1969 * Set a timer just in case we never hear from the board again 1970 */ 1971 ifp->if_timer = 2; 1972} 1973 1974/* 1975 * Start output on interface. 1976 * We make two assumptions here: 1977 * 1) that the current priority is set to splimp _before_ this code 1978 * is called *and* is returned to the appropriate priority after 1979 * return 1980 * 2) that the IFF_OACTIVE flag is checked before this code is called 1981 * (i.e. that the output part of the interface is idle) 1982 */ 1983static void 1984ed_start(ifp) 1985 struct ifnet *ifp; 1986{ 1987 struct ed_softc *sc = ifp->if_softc; 1988 struct mbuf *m0, *m; 1989 caddr_t buffer; 1990 int len; 1991 1992 if (sc->gone) { 1993 printf("ed_start(%p) GONE\n",ifp); 1994 return; 1995 } 1996outloop: 1997 1998 /* 1999 * First, see if there are buffered packets and an idle transmitter - 2000 * should never happen at this point. 2001 */ 2002 if (sc->txb_inuse && (sc->xmit_busy == 0)) { 2003 printf("ed: packets buffered, but transmitter idle\n"); 2004 ed_xmit(sc); 2005 } 2006 2007 /* 2008 * See if there is room to put another packet in the buffer. 2009 */ 2010 if (sc->txb_inuse == sc->txb_cnt) { 2011 2012 /* 2013 * No room. Indicate this to the outside world and exit. 2014 */ 2015 ifp->if_flags |= IFF_OACTIVE; 2016 return; 2017 } 2018 IF_DEQUEUE(&ifp->if_snd, m); 2019 if (m == 0) { 2020 2021 /* 2022 * We are using the !OACTIVE flag to indicate to the outside 2023 * world that we can accept an additional packet rather than 2024 * that the transmitter is _actually_ active. Indeed, the 2025 * transmitter may be active, but if we haven't filled all the 2026 * buffers with data then we still want to accept more. 2027 */ 2028 ifp->if_flags &= ~IFF_OACTIVE; 2029 return; 2030 } 2031 2032 /* 2033 * Copy the mbuf chain into the transmit buffer 2034 */ 2035 2036 m0 = m; 2037 2038 /* txb_new points to next open buffer slot */ 2039 buffer = sc->mem_start + (sc->txb_new * ED_TXBUF_SIZE * ED_PAGE_SIZE); 2040 2041 if (sc->mem_shared) { 2042 2043 /* 2044 * Special case setup for 16 bit boards... 2045 */ 2046 if (sc->isa16bit) { 2047 switch (sc->vendor) { 2048 2049 /* 2050 * For 16bit 3Com boards (which have 16k of 2051 * memory), we have the xmit buffers in a 2052 * different page of memory ('page 0') - so 2053 * change pages. 2054 */ 2055 case ED_VENDOR_3COM: 2056 ed_asic_outb(sc, ED_3COM_GACFR, 2057 ED_3COM_GACFR_RSEL); 2058 break; 2059 2060 /* 2061 * Enable 16bit access to shared memory on 2062 * WD/SMC boards. 2063 */ 2064 case ED_VENDOR_WD_SMC: 2065 ed_asic_outb(sc, ED_WD_LAAR, 2066 sc->wd_laar_proto | ED_WD_LAAR_M16EN); 2067 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 2068 ed_asic_outb(sc, ED_WD_MSR, ED_WD_MSR_MENB); 2069 } 2070 break; 2071 } 2072 } 2073 for (len = 0; m != 0; m = m->m_next) { 2074 bcopy(mtod(m, caddr_t), buffer, m->m_len); 2075 buffer += m->m_len; 2076 len += m->m_len; 2077 } 2078 2079 /* 2080 * Restore previous shared memory access 2081 */ 2082 if (sc->isa16bit) { 2083 switch (sc->vendor) { 2084 case ED_VENDOR_3COM: 2085 ed_asic_outb(sc, ED_3COM_GACFR, 2086 ED_3COM_GACFR_RSEL | ED_3COM_GACFR_MBS0); 2087 break; 2088 case ED_VENDOR_WD_SMC: 2089 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 2090 ed_asic_outb(sc, ED_WD_MSR, 0x00); 2091 } 2092 ed_asic_outb(sc, ED_WD_LAAR, 2093 sc->wd_laar_proto & ~ED_WD_LAAR_M16EN); 2094 break; 2095 } 2096 } 2097 } else { 2098 len = ed_pio_write_mbufs(sc, m, (int)buffer); 2099 if (len == 0) 2100 goto outloop; 2101 } 2102 2103 sc->txb_len[sc->txb_new] = max(len, (ETHER_MIN_LEN-ETHER_CRC_LEN)); 2104 2105 sc->txb_inuse++; 2106 2107 /* 2108 * Point to next buffer slot and wrap if necessary. 2109 */ 2110 sc->txb_new++; 2111 if (sc->txb_new == sc->txb_cnt) 2112 sc->txb_new = 0; 2113 2114 if (sc->xmit_busy == 0) 2115 ed_xmit(sc); 2116 2117 /* 2118 * Tap off here if there is a bpf listener. 2119 */ 2120 if (ifp->if_bpf) { 2121 bpf_mtap(ifp, m0); 2122 } 2123 2124 m_freem(m0); 2125 2126 /* 2127 * Loop back to the top to possibly buffer more packets 2128 */ 2129 goto outloop; 2130} 2131 2132/* 2133 * Ethernet interface receiver interrupt. 2134 */ 2135static __inline void 2136ed_rint(sc) 2137 struct ed_softc *sc; 2138{ 2139 struct ifnet *ifp = &sc->arpcom.ac_if; 2140 u_char boundry; 2141 u_short len; 2142 struct ed_ring packet_hdr; 2143 char *packet_ptr; 2144 2145 if (sc->gone) 2146 return; 2147 2148 /* 2149 * Set NIC to page 1 registers to get 'current' pointer 2150 */ 2151 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STA); 2152 2153 /* 2154 * 'sc->next_packet' is the logical beginning of the ring-buffer - 2155 * i.e. it points to where new data has been buffered. The 'CURR' 2156 * (current) register points to the logical end of the ring-buffer - 2157 * i.e. it points to where additional new data will be added. We loop 2158 * here until the logical beginning equals the logical end (or in 2159 * other words, until the ring-buffer is empty). 2160 */ 2161 while (sc->next_packet != ed_nic_inb(sc, ED_P1_CURR)) { 2162 2163 /* get pointer to this buffer's header structure */ 2164 packet_ptr = sc->mem_ring + 2165 (sc->next_packet - sc->rec_page_start) * ED_PAGE_SIZE; 2166 2167 /* 2168 * The byte count includes a 4 byte header that was added by 2169 * the NIC. 2170 */ 2171 if (sc->mem_shared) 2172 packet_hdr = *(struct ed_ring *) packet_ptr; 2173 else 2174 ed_pio_readmem(sc, (int)packet_ptr, (char *) &packet_hdr, 2175 sizeof(packet_hdr)); 2176 len = packet_hdr.count; 2177 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring)) || 2178 len < (ETHER_MIN_LEN - ETHER_CRC_LEN + sizeof(struct ed_ring))) { 2179 /* 2180 * Length is a wild value. There's a good chance that 2181 * this was caused by the NIC being old and buggy. 2182 * The bug is that the length low byte is duplicated in 2183 * the high byte. Try to recalculate the length based on 2184 * the pointer to the next packet. 2185 */ 2186 /* 2187 * NOTE: sc->next_packet is pointing at the current packet. 2188 */ 2189 len &= ED_PAGE_SIZE - 1; /* preserve offset into page */ 2190 if (packet_hdr.next_packet >= sc->next_packet) { 2191 len += (packet_hdr.next_packet - sc->next_packet) * ED_PAGE_SIZE; 2192 } else { 2193 len += ((packet_hdr.next_packet - sc->rec_page_start) + 2194 (sc->rec_page_stop - sc->next_packet)) * ED_PAGE_SIZE; 2195 } 2196 /* 2197 * because buffers are aligned on 256-byte boundary, 2198 * the length computed above is off by 256 in almost 2199 * all cases. Fix it... 2200 */ 2201 if (len & 0xff) 2202 len -= 256 ; 2203 if (len > (ETHER_MAX_LEN - ETHER_CRC_LEN 2204 + sizeof(struct ed_ring))) 2205 sc->mibdata.dot3StatsFrameTooLongs++; 2206 } 2207 /* 2208 * Be fairly liberal about what we allow as a "reasonable" length 2209 * so that a [crufty] packet will make it to BPF (and can thus 2210 * be analyzed). Note that all that is really important is that 2211 * we have a length that will fit into one mbuf cluster or less; 2212 * the upper layer protocols can then figure out the length from 2213 * their own length field(s). 2214 * But make sure that we have at least a full ethernet header 2215 * or we would be unable to call ether_input() later. 2216 */ 2217 if ((len >= sizeof(struct ed_ring) + ETHER_HDR_LEN) && 2218 (len <= MCLBYTES) && 2219 (packet_hdr.next_packet >= sc->rec_page_start) && 2220 (packet_hdr.next_packet < sc->rec_page_stop)) { 2221 /* 2222 * Go get packet. 2223 */ 2224 ed_get_packet(sc, packet_ptr + sizeof(struct ed_ring), 2225 len - sizeof(struct ed_ring)); 2226 ifp->if_ipackets++; 2227 } else { 2228 /* 2229 * Really BAD. The ring pointers are corrupted. 2230 */ 2231 log(LOG_ERR, 2232 "ed%d: NIC memory corrupt - invalid packet length %d\n", 2233 ifp->if_unit, len); 2234 ifp->if_ierrors++; 2235 ed_reset(ifp); 2236 return; 2237 } 2238 2239 /* 2240 * Update next packet pointer 2241 */ 2242 sc->next_packet = packet_hdr.next_packet; 2243 2244 /* 2245 * Update NIC boundry pointer - being careful to keep it one 2246 * buffer behind. (as recommended by NS databook) 2247 */ 2248 boundry = sc->next_packet - 1; 2249 if (boundry < sc->rec_page_start) 2250 boundry = sc->rec_page_stop - 1; 2251 2252 /* 2253 * Set NIC to page 0 registers to update boundry register 2254 */ 2255 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 2256 2257 ed_nic_outb(sc, ED_P0_BNRY, boundry); 2258 2259 /* 2260 * Set NIC to page 1 registers before looping to top (prepare 2261 * to get 'CURR' current pointer) 2262 */ 2263 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STA); 2264 } 2265} 2266 2267/* 2268 * Ethernet interface interrupt processor 2269 */ 2270void 2271edintr(arg) 2272 void *arg; 2273{ 2274 struct ed_softc *sc = (struct ed_softc*) arg; 2275 struct ifnet *ifp = (struct ifnet *)sc; 2276 u_char isr; 2277 2278 if (sc->gone) 2279 return; 2280 /* 2281 * Set NIC to page 0 registers 2282 */ 2283 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 2284 2285 /* 2286 * loop until there are no more new interrupts 2287 */ 2288 while ((isr = ed_nic_inb(sc, ED_P0_ISR)) != 0) { 2289 2290 /* 2291 * reset all the bits that we are 'acknowledging' by writing a 2292 * '1' to each bit position that was set (writing a '1' 2293 * *clears* the bit) 2294 */ 2295 ed_nic_outb(sc, ED_P0_ISR, isr); 2296 2297 /* XXX workaround for AX88190 */ 2298 if (sc->chip_type == ED_CHIP_TYPE_AX88190) { 2299 while (ed_nic_inb(sc, ED_P0_ISR) & isr) { 2300 ed_nic_outb(sc, ED_P0_ISR,0); 2301 ed_nic_outb(sc, ED_P0_ISR,isr); 2302 } 2303 } 2304 2305 /* 2306 * Handle transmitter interrupts. Handle these first because 2307 * the receiver will reset the board under some conditions. 2308 */ 2309 if (isr & (ED_ISR_PTX | ED_ISR_TXE)) { 2310 u_char collisions = ed_nic_inb(sc, ED_P0_NCR) & 0x0f; 2311 2312 /* 2313 * Check for transmit error. If a TX completed with an 2314 * error, we end up throwing the packet away. Really 2315 * the only error that is possible is excessive 2316 * collisions, and in this case it is best to allow 2317 * the automatic mechanisms of TCP to backoff the 2318 * flow. Of course, with UDP we're screwed, but this 2319 * is expected when a network is heavily loaded. 2320 */ 2321 (void) ed_nic_inb(sc, ED_P0_TSR); 2322 if (isr & ED_ISR_TXE) { 2323 u_char tsr; 2324 2325 /* 2326 * Excessive collisions (16) 2327 */ 2328 tsr = ed_nic_inb(sc, ED_P0_TSR); 2329 if ((tsr & ED_TSR_ABT) 2330 && (collisions == 0)) { 2331 2332 /* 2333 * When collisions total 16, the 2334 * P0_NCR will indicate 0, and the 2335 * TSR_ABT is set. 2336 */ 2337 collisions = 16; 2338 sc->mibdata.dot3StatsExcessiveCollisions++; 2339 sc->mibdata.dot3StatsCollFrequencies[15]++; 2340 } 2341 if (tsr & ED_TSR_OWC) 2342 sc->mibdata.dot3StatsLateCollisions++; 2343 if (tsr & ED_TSR_CDH) 2344 sc->mibdata.dot3StatsSQETestErrors++; 2345 if (tsr & ED_TSR_CRS) 2346 sc->mibdata.dot3StatsCarrierSenseErrors++; 2347 if (tsr & ED_TSR_FU) 2348 sc->mibdata.dot3StatsInternalMacTransmitErrors++; 2349 2350 /* 2351 * update output errors counter 2352 */ 2353 ifp->if_oerrors++; 2354 } else { 2355 2356 /* 2357 * Update total number of successfully 2358 * transmitted packets. 2359 */ 2360 ifp->if_opackets++; 2361 } 2362 2363 /* 2364 * reset tx busy and output active flags 2365 */ 2366 sc->xmit_busy = 0; 2367 ifp->if_flags &= ~IFF_OACTIVE; 2368 2369 /* 2370 * clear watchdog timer 2371 */ 2372 ifp->if_timer = 0; 2373 2374 /* 2375 * Add in total number of collisions on last 2376 * transmission. 2377 */ 2378 ifp->if_collisions += collisions; 2379 switch(collisions) { 2380 case 0: 2381 case 16: 2382 break; 2383 case 1: 2384 sc->mibdata.dot3StatsSingleCollisionFrames++; 2385 sc->mibdata.dot3StatsCollFrequencies[0]++; 2386 break; 2387 default: 2388 sc->mibdata.dot3StatsMultipleCollisionFrames++; 2389 sc->mibdata. 2390 dot3StatsCollFrequencies[collisions-1] 2391 ++; 2392 break; 2393 } 2394 2395 /* 2396 * Decrement buffer in-use count if not zero (can only 2397 * be zero if a transmitter interrupt occured while 2398 * not actually transmitting). If data is ready to 2399 * transmit, start it transmitting, otherwise defer 2400 * until after handling receiver 2401 */ 2402 if (sc->txb_inuse && --sc->txb_inuse) 2403 ed_xmit(sc); 2404 } 2405 2406 /* 2407 * Handle receiver interrupts 2408 */ 2409 if (isr & (ED_ISR_PRX | ED_ISR_RXE | ED_ISR_OVW)) { 2410 2411 /* 2412 * Overwrite warning. In order to make sure that a 2413 * lockup of the local DMA hasn't occurred, we reset 2414 * and re-init the NIC. The NSC manual suggests only a 2415 * partial reset/re-init is necessary - but some chips 2416 * seem to want more. The DMA lockup has been seen 2417 * only with early rev chips - Methinks this bug was 2418 * fixed in later revs. -DG 2419 */ 2420 if (isr & ED_ISR_OVW) { 2421 ifp->if_ierrors++; 2422#ifdef DIAGNOSTIC 2423 log(LOG_WARNING, 2424 "ed%d: warning - receiver ring buffer overrun\n", 2425 ifp->if_unit); 2426#endif 2427 2428 /* 2429 * Stop/reset/re-init NIC 2430 */ 2431 ed_reset(ifp); 2432 } else { 2433 2434 /* 2435 * Receiver Error. One or more of: CRC error, 2436 * frame alignment error FIFO overrun, or 2437 * missed packet. 2438 */ 2439 if (isr & ED_ISR_RXE) { 2440 u_char rsr; 2441 rsr = ed_nic_inb(sc, ED_P0_RSR); 2442 if (rsr & ED_RSR_CRC) 2443 sc->mibdata.dot3StatsFCSErrors++; 2444 if (rsr & ED_RSR_FAE) 2445 sc->mibdata.dot3StatsAlignmentErrors++; 2446 if (rsr & ED_RSR_FO) 2447 sc->mibdata.dot3StatsInternalMacReceiveErrors++; 2448 ifp->if_ierrors++; 2449#ifdef ED_DEBUG 2450 printf("ed%d: receive error %x\n", ifp->if_unit, 2451 ed_nic_inb(sc, ED_P0_RSR)); 2452#endif 2453 } 2454 2455 /* 2456 * Go get the packet(s) XXX - Doing this on an 2457 * error is dubious because there shouldn't be 2458 * any data to get (we've configured the 2459 * interface to not accept packets with 2460 * errors). 2461 */ 2462 2463 /* 2464 * Enable 16bit access to shared memory first 2465 * on WD/SMC boards. 2466 */ 2467 if (sc->isa16bit && 2468 (sc->vendor == ED_VENDOR_WD_SMC)) { 2469 2470 ed_asic_outb(sc, ED_WD_LAAR, 2471 sc->wd_laar_proto | ED_WD_LAAR_M16EN); 2472 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 2473 ed_asic_outb(sc, ED_WD_MSR, 2474 ED_WD_MSR_MENB); 2475 } 2476 } 2477 ed_rint(sc); 2478 2479 /* disable 16bit access */ 2480 if (sc->isa16bit && 2481 (sc->vendor == ED_VENDOR_WD_SMC)) { 2482 2483 if (sc->chip_type == ED_CHIP_TYPE_WD790) { 2484 ed_asic_outb(sc, ED_WD_MSR, 0x00); 2485 } 2486 ed_asic_outb(sc, ED_WD_LAAR, 2487 sc->wd_laar_proto & ~ED_WD_LAAR_M16EN); 2488 } 2489 } 2490 } 2491 2492 /* 2493 * If it looks like the transmitter can take more data, 2494 * attempt to start output on the interface. This is done 2495 * after handling the receiver to give the receiver priority. 2496 */ 2497 if ((ifp->if_flags & IFF_OACTIVE) == 0) 2498 ed_start(ifp); 2499 2500 /* 2501 * return NIC CR to standard state: page 0, remote DMA 2502 * complete, start (toggling the TXP bit off, even if was just 2503 * set in the transmit routine, is *okay* - it is 'edge' 2504 * triggered from low to high) 2505 */ 2506 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 2507 2508 /* 2509 * If the Network Talley Counters overflow, read them to reset 2510 * them. It appears that old 8390's won't clear the ISR flag 2511 * otherwise - resulting in an infinite loop. 2512 */ 2513 if (isr & ED_ISR_CNT) { 2514 (void) ed_nic_inb(sc, ED_P0_CNTR0); 2515 (void) ed_nic_inb(sc, ED_P0_CNTR1); 2516 (void) ed_nic_inb(sc, ED_P0_CNTR2); 2517 } 2518 } 2519} 2520 2521/* 2522 * Process an ioctl request. This code needs some work - it looks 2523 * pretty ugly. 2524 */ 2525static int 2526ed_ioctl(ifp, command, data) 2527 register struct ifnet *ifp; 2528 u_long command; 2529 caddr_t data; 2530{ 2531 struct ed_softc *sc = ifp->if_softc;
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2532 struct ifreq *ifr = (struct ifreq *)data; 2533 struct mii_data *mii; |
2534 int s, error = 0; 2535 2536 if (sc == NULL || sc->gone) { 2537 ifp->if_flags &= ~IFF_RUNNING; 2538 return ENXIO; 2539 } 2540 s = splimp(); 2541 2542 switch (command) { 2543 2544 case SIOCSIFADDR: 2545 case SIOCGIFADDR: 2546 case SIOCSIFMTU: 2547 error = ether_ioctl(ifp, command, data); 2548 break; 2549 2550 case SIOCSIFFLAGS: 2551 2552 /* 2553 * If the interface is marked up and stopped, then start it. 2554 * If it is marked down and running, then stop it. 2555 */ 2556 if (ifp->if_flags & IFF_UP) { 2557 if ((ifp->if_flags & IFF_RUNNING) == 0) 2558 ed_init(sc); 2559 } else { 2560 if (ifp->if_flags & IFF_RUNNING) { 2561 ed_stop(sc); 2562 ifp->if_flags &= ~IFF_RUNNING; 2563 } 2564 } 2565 2566 /* 2567 * Promiscuous flag may have changed, so reprogram the RCR. 2568 */ 2569 ed_setrcr(sc); 2570 2571 /* 2572 * An unfortunate hack to provide the (required) software 2573 * control of the tranceiver for 3Com boards. The ALTPHYS flag 2574 * disables the tranceiver if set. 2575 */ 2576 if (sc->vendor == ED_VENDOR_3COM) { 2577 if (ifp->if_flags & IFF_ALTPHYS) { 2578 ed_asic_outb(sc, ED_3COM_CR, 0); 2579 } else { 2580 ed_asic_outb(sc, ED_3COM_CR, ED_3COM_CR_XSEL); 2581 } 2582 } else if (sc->vendor == ED_VENDOR_HP) 2583 ed_hpp_set_physical_link(sc); 2584 break; 2585 2586 case SIOCADDMULTI: 2587 case SIOCDELMULTI: 2588 /* 2589 * Multicast list has changed; set the hardware filter 2590 * accordingly. 2591 */ 2592 ed_setrcr(sc); 2593 error = 0; 2594 break; 2595
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2596 case SIOCGIFMEDIA: 2597 case SIOCSIFMEDIA: 2598 if (sc->miibus == NULL) { 2599 error = EINVAL; 2600 break; 2601 } 2602 mii = device_get_softc(sc->miibus); 2603 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 2604 break; 2605 |
2606 default: 2607 error = EINVAL; 2608 } 2609 (void) splx(s); 2610 return (error); 2611} 2612 2613/* 2614 * Given a source and destination address, copy 'amount' of a packet from 2615 * the ring buffer into a linear destination buffer. Takes into account 2616 * ring-wrap. 2617 */ 2618static __inline char * 2619ed_ring_copy(sc, src, dst, amount) 2620 struct ed_softc *sc; 2621 char *src; 2622 char *dst; 2623 u_short amount; 2624{ 2625 u_short tmp_amount; 2626 2627 /* does copy wrap to lower addr in ring buffer? */ 2628 if (src + amount > sc->mem_end) { 2629 tmp_amount = sc->mem_end - src; 2630 2631 /* copy amount up to end of NIC memory */ 2632 if (sc->mem_shared) 2633 bcopy(src, dst, tmp_amount); 2634 else 2635 ed_pio_readmem(sc, (int)src, dst, tmp_amount); 2636 2637 amount -= tmp_amount; 2638 src = sc->mem_ring; 2639 dst += tmp_amount; 2640 } 2641 if (sc->mem_shared) 2642 bcopy(src, dst, amount); 2643 else 2644 ed_pio_readmem(sc, (int)src, dst, amount); 2645 2646 return (src + amount); 2647} 2648 2649/* 2650 * Retreive packet from shared memory and send to the next level up via 2651 * ether_input(). 2652 */ 2653static void 2654ed_get_packet(sc, buf, len) 2655 struct ed_softc *sc; 2656 char *buf; 2657 u_short len; 2658{ 2659 struct ether_header *eh; 2660 struct mbuf *m; 2661 2662 /* Allocate a header mbuf */ 2663 MGETHDR(m, M_DONTWAIT, MT_DATA); 2664 if (m == NULL) 2665 return; 2666 m->m_pkthdr.rcvif = &sc->arpcom.ac_if; 2667 m->m_pkthdr.len = m->m_len = len; 2668 2669 /* 2670 * We always put the received packet in a single buffer - 2671 * either with just an mbuf header or in a cluster attached 2672 * to the header. The +2 is to compensate for the alignment 2673 * fixup below. 2674 */ 2675 if ((len + 2) > MHLEN) { 2676 /* Attach an mbuf cluster */ 2677 MCLGET(m, M_DONTWAIT); 2678 2679 /* Insist on getting a cluster */ 2680 if ((m->m_flags & M_EXT) == 0) { 2681 m_freem(m); 2682 return; 2683 } 2684 } 2685 2686 /* 2687 * The +2 is to longword align the start of the real packet. 2688 * This is important for NFS. 2689 */ 2690 m->m_data += 2; 2691 eh = mtod(m, struct ether_header *); 2692 2693#ifdef BRIDGE 2694 /* 2695 * Don't read in the entire packet if we know we're going to drop it 2696 * and no bpf is active. 2697 */ 2698 if (!sc->arpcom.ac_if.if_bpf && 2699 do_bridge && BDG_USED( (&sc->arpcom.ac_if) ) ) { 2700 struct ifnet *bif; 2701 2702 ed_ring_copy(sc, buf, (char *)eh, ETHER_HDR_LEN); 2703 bif = bridge_in(&sc->arpcom.ac_if, eh) ; 2704 if (bif == BDG_DROP) { 2705 m_freem(m); 2706 return; 2707 } 2708 if (len > ETHER_HDR_LEN) 2709 ed_ring_copy(sc, buf + ETHER_HDR_LEN, 2710 (char *)(eh + 1), len - ETHER_HDR_LEN); 2711 } else 2712#endif 2713 /* 2714 * Get packet, including link layer address, from interface. 2715 */ 2716 ed_ring_copy(sc, buf, (char *)eh, len); 2717 2718 /* 2719 * Remove link layer address. 2720 */ 2721 m->m_pkthdr.len = m->m_len = len - sizeof(struct ether_header); 2722 m->m_data += sizeof(struct ether_header); 2723 2724 ether_input(&sc->arpcom.ac_if, eh, m); 2725} 2726 2727/* 2728 * Supporting routines 2729 */ 2730 2731/* 2732 * Given a NIC memory source address and a host memory destination 2733 * address, copy 'amount' from NIC to host using Programmed I/O. 2734 * The 'amount' is rounded up to a word - okay as long as mbufs 2735 * are word sized. 2736 * This routine is currently Novell-specific. 2737 */ 2738void 2739ed_pio_readmem(sc, src, dst, amount) 2740 struct ed_softc *sc; 2741 int src; 2742 unsigned char *dst; 2743 unsigned short amount; 2744{ 2745 /* HP PC Lan+ cards need special handling */ 2746 if (sc->vendor == ED_VENDOR_HP && sc->type == ED_TYPE_HP_PCLANPLUS) { 2747 ed_hpp_readmem(sc, src, dst, amount); 2748 return; 2749 } 2750 2751 /* Regular Novell cards */ 2752 /* select page 0 registers */ 2753 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA); 2754 2755 /* round up to a word */ 2756 if (amount & 1) 2757 ++amount; 2758 2759 /* set up DMA byte count */ 2760 ed_nic_outb(sc, ED_P0_RBCR0, amount); 2761 ed_nic_outb(sc, ED_P0_RBCR1, amount >> 8); 2762 2763 /* set up source address in NIC mem */ 2764 ed_nic_outb(sc, ED_P0_RSAR0, src); 2765 ed_nic_outb(sc, ED_P0_RSAR1, src >> 8); 2766 2767 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD0 | ED_CR_STA); 2768 2769 if (sc->isa16bit) { 2770 ed_asic_insw(sc, ED_NOVELL_DATA, dst, amount / 2); 2771 } else { 2772 ed_asic_insb(sc, ED_NOVELL_DATA, dst, amount); 2773 } 2774} 2775 2776/* 2777 * Stripped down routine for writing a linear buffer to NIC memory. 2778 * Only used in the probe routine to test the memory. 'len' must 2779 * be even. 2780 */ 2781void 2782ed_pio_writemem(sc, src, dst, len) 2783 struct ed_softc *sc; 2784 char *src; 2785 unsigned short dst; 2786 unsigned short len; 2787{ 2788 int maxwait = 200; /* about 240us */ 2789 2790 /* select page 0 registers */ 2791 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA); 2792 2793 /* reset remote DMA complete flag */ 2794 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC); 2795 2796 /* set up DMA byte count */ 2797 ed_nic_outb(sc, ED_P0_RBCR0, len); 2798 ed_nic_outb(sc, ED_P0_RBCR1, len >> 8); 2799 2800 /* set up destination address in NIC mem */ 2801 ed_nic_outb(sc, ED_P0_RSAR0, dst); 2802 ed_nic_outb(sc, ED_P0_RSAR1, dst >> 8); 2803 2804 /* set remote DMA write */ 2805 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD1 | ED_CR_STA); 2806 2807 if (sc->isa16bit) { 2808 ed_asic_outsw(sc, ED_NOVELL_DATA, src, len / 2); 2809 } else { 2810 ed_asic_outsb(sc, ED_NOVELL_DATA, src, len); 2811 } 2812 2813 /* 2814 * Wait for remote DMA complete. This is necessary because on the 2815 * transmit side, data is handled internally by the NIC in bursts and 2816 * we can't start another remote DMA until this one completes. Not 2817 * waiting causes really bad things to happen - like the NIC 2818 * irrecoverably jamming the ISA bus. 2819 */ 2820 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RDC) != ED_ISR_RDC) && --maxwait); 2821} 2822 2823/* 2824 * Write an mbuf chain to the destination NIC memory address using 2825 * programmed I/O. 2826 */ 2827static u_short 2828ed_pio_write_mbufs(sc, m, dst) 2829 struct ed_softc *sc; 2830 struct mbuf *m; 2831 int dst; 2832{ 2833 struct ifnet *ifp = (struct ifnet *)sc; 2834 unsigned short total_len, dma_len; 2835 struct mbuf *mp; 2836 int maxwait = 200; /* about 240us */ 2837 2838 /* HP PC Lan+ cards need special handling */ 2839 if (sc->vendor == ED_VENDOR_HP && sc->type == ED_TYPE_HP_PCLANPLUS) { 2840 return ed_hpp_write_mbufs(sc, m, dst); 2841 } 2842 2843 /* Regular Novell cards */ 2844 /* First, count up the total number of bytes to copy */ 2845 for (total_len = 0, mp = m; mp; mp = mp->m_next) 2846 total_len += mp->m_len; 2847 2848 dma_len = total_len; 2849 if (sc->isa16bit && (dma_len & 1)) 2850 dma_len++; 2851 2852 /* select page 0 registers */ 2853 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STA); 2854 2855 /* reset remote DMA complete flag */ 2856 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC); 2857 2858 /* set up DMA byte count */ 2859 ed_nic_outb(sc, ED_P0_RBCR0, dma_len); 2860 ed_nic_outb(sc, ED_P0_RBCR1, dma_len >> 8); 2861 2862 /* set up destination address in NIC mem */ 2863 ed_nic_outb(sc, ED_P0_RSAR0, dst); 2864 ed_nic_outb(sc, ED_P0_RSAR1, dst >> 8); 2865 2866 /* set remote DMA write */ 2867 ed_nic_outb(sc, ED_P0_CR, ED_CR_RD1 | ED_CR_STA); 2868 2869 /* 2870 * Transfer the mbuf chain to the NIC memory. 2871 * 16-bit cards require that data be transferred as words, and only words. 2872 * So that case requires some extra code to patch over odd-length mbufs. 2873 */ 2874 2875 if (!sc->isa16bit) { 2876 /* NE1000s are easy */ 2877 while (m) { 2878 if (m->m_len) { 2879 ed_asic_outsb(sc, ED_NOVELL_DATA, 2880 m->m_data, m->m_len); 2881 } 2882 m = m->m_next; 2883 } 2884 } else { 2885 /* NE2000s are a pain */ 2886 unsigned char *data; 2887 int len, wantbyte; 2888 unsigned char savebyte[2]; 2889 2890 wantbyte = 0; 2891 2892 while (m) { 2893 len = m->m_len; 2894 if (len) { 2895 data = mtod(m, caddr_t); 2896 /* finish the last word */ 2897 if (wantbyte) { 2898 savebyte[1] = *data; 2899 ed_asic_outw(sc, ED_NOVELL_DATA, 2900 *(u_short *)savebyte); 2901 data++; 2902 len--; 2903 wantbyte = 0; 2904 } 2905 /* output contiguous words */ 2906 if (len > 1) { 2907 ed_asic_outsw(sc, ED_NOVELL_DATA, 2908 data, len >> 1); 2909 data += len & ~1; 2910 len &= 1; 2911 } 2912 /* save last byte, if necessary */ 2913 if (len == 1) { 2914 savebyte[0] = *data; 2915 wantbyte = 1; 2916 } 2917 } 2918 m = m->m_next; 2919 } 2920 /* spit last byte */ 2921 if (wantbyte) { 2922 ed_asic_outw(sc, ED_NOVELL_DATA, *(u_short *)savebyte); 2923 } 2924 } 2925 2926 /* 2927 * Wait for remote DMA complete. This is necessary because on the 2928 * transmit side, data is handled internally by the NIC in bursts and 2929 * we can't start another remote DMA until this one completes. Not 2930 * waiting causes really bad things to happen - like the NIC 2931 * irrecoverably jamming the ISA bus. 2932 */ 2933 while (((ed_nic_inb(sc, ED_P0_ISR) & ED_ISR_RDC) != ED_ISR_RDC) && --maxwait); 2934 2935 if (!maxwait) { 2936 log(LOG_WARNING, "ed%d: remote transmit DMA failed to complete\n", 2937 ifp->if_unit); 2938 ed_reset(ifp); 2939 return(0); 2940 } 2941 return (total_len); 2942} 2943 2944/* 2945 * Support routines to handle the HP PC Lan+ card. 2946 */ 2947 2948/* 2949 * HP PC Lan+: Read from NIC memory, using either PIO or memory mapped 2950 * IO. 2951 */ 2952 2953static void 2954ed_hpp_readmem(sc, src, dst, amount) 2955 struct ed_softc *sc; 2956 unsigned short src; 2957 unsigned char *dst; 2958 unsigned short amount; 2959{ 2960 2961 int use_32bit_access = !(sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS); 2962 2963 2964 /* Program the source address in RAM */ 2965 ed_asic_outw(sc, ED_HPP_PAGE_2, src); 2966 2967 /* 2968 * The HP PC Lan+ card supports word reads as well as 2969 * a memory mapped i/o port that is aliased to every 2970 * even address on the board. 2971 */ 2972 2973 if (sc->hpp_mem_start) { 2974 2975 /* Enable memory mapped access. */ 2976 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options & 2977 ~(ED_HPP_OPTION_MEM_DISABLE | 2978 ED_HPP_OPTION_BOOT_ROM_ENB)); 2979 2980 if (use_32bit_access && (amount > 3)) { 2981 u_int32_t *dl = (u_int32_t *) dst; 2982 volatile u_int32_t *const sl = 2983 (u_int32_t *) sc->hpp_mem_start; 2984 u_int32_t *const fence = dl + (amount >> 2); 2985 2986 /* Copy out NIC data. We could probably write this 2987 as a `movsl'. The currently generated code is lousy. 2988 */ 2989 2990 while (dl < fence) 2991 *dl++ = *sl; 2992 2993 dst += (amount & ~3); 2994 amount &= 3; 2995 2996 } 2997 2998 /* Finish off any words left, as a series of short reads */ 2999 if (amount > 1) { 3000 u_short *d = (u_short *) dst; 3001 volatile u_short *const s = 3002 (u_short *) sc->hpp_mem_start; 3003 u_short *const fence = d + (amount >> 1); 3004 3005 /* Copy out NIC data. */ 3006 3007 while (d < fence) 3008 *d++ = *s; 3009 3010 dst += (amount & ~1); 3011 amount &= 1; 3012 } 3013 3014 /* 3015 * read in a byte; however we need to always read 16 bits 3016 * at a time or the hardware gets into a funny state 3017 */ 3018 3019 if (amount == 1) { 3020 /* need to read in a short and copy LSB */ 3021 volatile u_short *const s = 3022 (volatile u_short *) sc->hpp_mem_start; 3023 3024 *dst = (*s) & 0xFF; 3025 } 3026 3027 /* Restore Boot ROM access. */ 3028 3029 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options); 3030 3031 3032 } else { 3033 /* Read in data using the I/O port */ 3034 if (use_32bit_access && (amount > 3)) { 3035 ed_asic_insl(sc, ED_HPP_PAGE_4, dst, amount >> 2); 3036 dst += (amount & ~3); 3037 amount &= 3; 3038 } 3039 if (amount > 1) { 3040 ed_asic_insw(sc, ED_HPP_PAGE_4, dst, amount >> 1); 3041 dst += (amount & ~1); 3042 amount &= 1; 3043 } 3044 if (amount == 1) { /* read in a short and keep the LSB */ 3045 *dst = ed_asic_inw(sc, ED_HPP_PAGE_4) & 0xFF; 3046 } 3047 } 3048} 3049 3050/* 3051 * HP PC Lan+: Write to NIC memory, using either PIO or memory mapped 3052 * IO. 3053 * Only used in the probe routine to test the memory. 'len' must 3054 * be even. 3055 */ 3056void 3057ed_hpp_writemem(sc, src, dst, len) 3058 struct ed_softc *sc; 3059 unsigned char *src; 3060 unsigned short dst; 3061 unsigned short len; 3062{ 3063 /* reset remote DMA complete flag */ 3064 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC); 3065 3066 /* program the write address in RAM */ 3067 ed_asic_outw(sc, ED_HPP_PAGE_0, dst); 3068 3069 if (sc->hpp_mem_start) { 3070 u_short *s = (u_short *) src; 3071 volatile u_short *d = (u_short *) sc->hpp_mem_start; 3072 u_short *const fence = s + (len >> 1); 3073 3074 /* 3075 * Enable memory mapped access. 3076 */ 3077 3078 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options & 3079 ~(ED_HPP_OPTION_MEM_DISABLE | 3080 ED_HPP_OPTION_BOOT_ROM_ENB)); 3081 3082 /* 3083 * Copy to NIC memory. 3084 */ 3085 3086 while (s < fence) 3087 *d = *s++; 3088 3089 /* 3090 * Restore Boot ROM access. 3091 */ 3092 3093 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options); 3094 3095 } else { 3096 /* write data using I/O writes */ 3097 ed_asic_outsw(sc, ED_HPP_PAGE_4, src, len / 2); 3098 } 3099} 3100 3101/* 3102 * Write to HP PC Lan+ NIC memory. Access to the NIC can be by using 3103 * outsw() or via the memory mapped interface to the same register. 3104 * Writes have to be in word units; byte accesses won't work and may cause 3105 * the NIC to behave weirdly. Long word accesses are permitted if the ASIC 3106 * allows it. 3107 */ 3108 3109static u_short 3110ed_hpp_write_mbufs(struct ed_softc *sc, struct mbuf *m, int dst) 3111{ 3112 int len, wantbyte; 3113 unsigned short total_len; 3114 unsigned char savebyte[2]; 3115 volatile u_short * const d = 3116 (volatile u_short *) sc->hpp_mem_start; 3117 int use_32bit_accesses = !(sc->hpp_id & ED_HPP_ID_16_BIT_ACCESS); 3118 3119 /* select page 0 registers */ 3120 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 3121 3122 /* reset remote DMA complete flag */ 3123 ed_nic_outb(sc, ED_P0_ISR, ED_ISR_RDC); 3124 3125 /* program the write address in RAM */ 3126 ed_asic_outw(sc, ED_HPP_PAGE_0, dst); 3127 3128 if (sc->hpp_mem_start) /* enable memory mapped I/O */ 3129 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options & 3130 ~(ED_HPP_OPTION_MEM_DISABLE | 3131 ED_HPP_OPTION_BOOT_ROM_ENB)); 3132 3133 wantbyte = 0; 3134 total_len = 0; 3135 3136 if (sc->hpp_mem_start) { /* Memory mapped I/O port */ 3137 while (m) { 3138 total_len += (len = m->m_len); 3139 if (len) { 3140 caddr_t data = mtod(m, caddr_t); 3141 /* finish the last word of the previous mbuf */ 3142 if (wantbyte) { 3143 savebyte[1] = *data; 3144 *d = *((ushort *) savebyte); 3145 data++; len--; wantbyte = 0; 3146 } 3147 /* output contiguous words */ 3148 if ((len > 3) && (use_32bit_accesses)) { 3149 volatile u_int32_t *const dl = 3150 (volatile u_int32_t *) d; 3151 u_int32_t *sl = (u_int32_t *) data; 3152 u_int32_t *fence = sl + (len >> 2); 3153 3154 while (sl < fence) 3155 *dl = *sl++; 3156 3157 data += (len & ~3); 3158 len &= 3; 3159 } 3160 /* finish off remain 16 bit writes */ 3161 if (len > 1) { 3162 u_short *s = (u_short *) data; 3163 u_short *fence = s + (len >> 1); 3164 3165 while (s < fence) 3166 *d = *s++; 3167 3168 data += (len & ~1); 3169 len &= 1; 3170 } 3171 /* save last byte if needed */ 3172 if ((wantbyte = (len == 1)) != 0) 3173 savebyte[0] = *data; 3174 } 3175 m = m->m_next; /* to next mbuf */ 3176 } 3177 if (wantbyte) /* write last byte */ 3178 *d = *((u_short *) savebyte); 3179 } else { 3180 /* use programmed I/O */ 3181 while (m) { 3182 total_len += (len = m->m_len); 3183 if (len) { 3184 caddr_t data = mtod(m, caddr_t); 3185 /* finish the last word of the previous mbuf */ 3186 if (wantbyte) { 3187 savebyte[1] = *data; 3188 ed_asic_outw(sc, ED_HPP_PAGE_4, 3189 *((u_short *)savebyte)); 3190 data++; 3191 len--; 3192 wantbyte = 0; 3193 } 3194 /* output contiguous words */ 3195 if ((len > 3) && use_32bit_accesses) { 3196 ed_asic_outsl(sc, ED_HPP_PAGE_4, 3197 data, len >> 2); 3198 data += (len & ~3); 3199 len &= 3; 3200 } 3201 /* finish off remaining 16 bit accesses */ 3202 if (len > 1) { 3203 ed_asic_outsw(sc, ED_HPP_PAGE_4, 3204 data, len >> 1); 3205 data += (len & ~1); 3206 len &= 1; 3207 } 3208 if ((wantbyte = (len == 1)) != 0) 3209 savebyte[0] = *data; 3210 3211 } /* if len != 0 */ 3212 m = m->m_next; 3213 } 3214 if (wantbyte) /* spit last byte */ 3215 ed_asic_outw(sc, ED_HPP_PAGE_4, *(u_short *)savebyte); 3216 3217 } 3218 3219 if (sc->hpp_mem_start) /* turn off memory mapped i/o */ 3220 ed_asic_outw(sc, ED_HPP_OPTION, sc->hpp_options); 3221 3222 return (total_len); 3223} 3224
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3225/* 3226 * MII bus support routines. 3227 */ 3228int 3229ed_miibus_readreg(dev, phy, reg) 3230 device_t dev; 3231 int phy, reg; 3232{ 3233 struct ed_softc *sc; 3234 int val; 3235 int failed; 3236 3237 sc = device_get_softc(dev); 3238 if (sc->gone) 3239 return 0; 3240 3241 (*sc->mii_writebits)(sc, 0xffffffff, 32); 3242 (*sc->mii_writebits)(sc, ED_MII_STARTDELIM, ED_MII_STARTDELIM_BITS); 3243 (*sc->mii_writebits)(sc, ED_MII_READOP, ED_MII_OP_BITS); 3244 (*sc->mii_writebits)(sc, phy, ED_MII_PHY_BITS); 3245 (*sc->mii_writebits)(sc, reg, ED_MII_REG_BITS); 3246 3247 failed = (*sc->mii_readbits)(sc, ED_MII_ACK_BITS); 3248 val = (*sc->mii_readbits)(sc, ED_MII_DATA_BITS); 3249 (*sc->mii_writebits)(sc, ED_MII_IDLE, ED_MII_IDLE_BITS); 3250 3251 return (failed ? 0 : val); 3252} 3253 3254void 3255ed_miibus_writereg(dev, phy, reg, data) 3256 device_t dev; 3257 int phy, reg, data; 3258{ 3259 struct ed_softc *sc; 3260 3261 sc = device_get_softc(dev); 3262 if (sc->gone) 3263 return; 3264 3265 (*sc->mii_writebits)(sc, 0xffffffff, 32); 3266 (*sc->mii_writebits)(sc, ED_MII_STARTDELIM, ED_MII_STARTDELIM_BITS); 3267 (*sc->mii_writebits)(sc, ED_MII_WRITEOP, ED_MII_OP_BITS); 3268 (*sc->mii_writebits)(sc, phy, ED_MII_PHY_BITS); 3269 (*sc->mii_writebits)(sc, reg, ED_MII_REG_BITS); 3270 (*sc->mii_writebits)(sc, ED_MII_TURNAROUND, ED_MII_TURNAROUND_BITS); 3271 (*sc->mii_writebits)(sc, data, ED_MII_DATA_BITS); 3272 (*sc->mii_writebits)(sc, ED_MII_IDLE, ED_MII_IDLE_BITS); 3273} 3274 3275int 3276ed_ifmedia_upd(ifp) 3277 struct ifnet *ifp; 3278{ 3279 struct ed_softc *sc; 3280 struct mii_data *mii; 3281 3282 sc = ifp->if_softc; 3283 if (sc->gone || sc->miibus == NULL) 3284 return (ENXIO); 3285 3286 mii = device_get_softc(sc->miibus); 3287 return mii_mediachg(mii); 3288} 3289 3290void 3291ed_ifmedia_sts(ifp, ifmr) 3292 struct ifnet *ifp; 3293 struct ifmediareq *ifmr; 3294{ 3295 struct ed_softc *sc; 3296 struct mii_data *mii; 3297 3298 sc = ifp->if_softc; 3299 if (sc->gone || sc->miibus == NULL) 3300 return; 3301 3302 mii = device_get_softc(sc->miibus); 3303 mii_pollstat(mii); 3304 ifmr->ifm_active = mii->mii_media_active; 3305 ifmr->ifm_status = mii->mii_media_status; 3306} 3307 3308void 3309ed_child_detached(dev, child) 3310 device_t dev; 3311 device_t child; 3312{ 3313 struct ed_softc *sc; 3314 3315 sc = device_get_softc(dev); 3316 if (child == sc->miibus) 3317 sc->miibus = NULL; 3318} 3319 |
3320static void 3321ed_setrcr(sc) 3322 struct ed_softc *sc; 3323{ 3324 struct ifnet *ifp = (struct ifnet *)sc; 3325 int i; 3326 u_char reg1; 3327 3328 /* Bit 6 in AX88190 RCR register must be set. */ 3329 if (sc->chip_type == ED_CHIP_TYPE_AX88190) 3330 reg1 = ED_RCR_INTT; 3331 else 3332 reg1 = 0x00; 3333 3334 /* set page 1 registers */ 3335 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_PAGE_1 | ED_CR_STP); 3336 3337 if (ifp->if_flags & IFF_PROMISC) { 3338 3339 /* 3340 * Reconfigure the multicast filter. 3341 */ 3342 for (i = 0; i < 8; i++) 3343 ed_nic_outb(sc, ED_P1_MAR(i), 0xff); 3344 3345 /* 3346 * And turn on promiscuous mode. Also enable reception of 3347 * runts and packets with CRC & alignment errors. 3348 */ 3349 /* Set page 0 registers */ 3350 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP); 3351 3352 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_PRO | ED_RCR_AM | 3353 ED_RCR_AB | ED_RCR_AR | ED_RCR_SEP | reg1); 3354 } else { 3355 /* set up multicast addresses and filter modes */ 3356 if (ifp->if_flags & IFF_MULTICAST) { 3357 u_int32_t mcaf[2]; 3358 3359 if (ifp->if_flags & IFF_ALLMULTI) { 3360 mcaf[0] = 0xffffffff; 3361 mcaf[1] = 0xffffffff; 3362 } else 3363 ds_getmcaf(sc, mcaf); 3364 3365 /* 3366 * Set multicast filter on chip. 3367 */ 3368 for (i = 0; i < 8; i++) 3369 ed_nic_outb(sc, ED_P1_MAR(i), ((u_char *) mcaf)[i]); 3370 3371 /* Set page 0 registers */ 3372 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP); 3373 3374 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_AM | ED_RCR_AB | reg1); 3375 } else { 3376 3377 /* 3378 * Initialize multicast address hashing registers to 3379 * not accept multicasts. 3380 */ 3381 for (i = 0; i < 8; ++i) 3382 ed_nic_outb(sc, ED_P1_MAR(i), 0x00); 3383 3384 /* Set page 0 registers */ 3385 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STP); 3386 3387 ed_nic_outb(sc, ED_P0_RCR, ED_RCR_AB | reg1); 3388 } 3389 } 3390 3391 /* 3392 * Start interface. 3393 */ 3394 ed_nic_outb(sc, ED_P0_CR, sc->cr_proto | ED_CR_STA); 3395} 3396 3397/* 3398 * Compute crc for ethernet address 3399 */ 3400static u_int32_t 3401ds_crc(ep) 3402 u_char *ep; 3403{ 3404#define POLYNOMIAL 0x04c11db6 3405 register u_int32_t crc = 0xffffffff; 3406 register int carry, i, j; 3407 register u_char b; 3408 3409 for (i = 6; --i >= 0;) { 3410 b = *ep++; 3411 for (j = 8; --j >= 0;) { 3412 carry = ((crc & 0x80000000) ? 1 : 0) ^ (b & 0x01); 3413 crc <<= 1; 3414 b >>= 1; 3415 if (carry) 3416 crc = (crc ^ POLYNOMIAL) | carry; 3417 } 3418 } 3419 return crc; 3420#undef POLYNOMIAL 3421} 3422 3423/* 3424 * Compute the multicast address filter from the 3425 * list of multicast addresses we need to listen to. 3426 */ 3427static void 3428ds_getmcaf(sc, mcaf) 3429 struct ed_softc *sc; 3430 u_int32_t *mcaf; 3431{ 3432 register u_int32_t index; 3433 register u_char *af = (u_char *) mcaf; 3434 struct ifmultiaddr *ifma; 3435 3436 mcaf[0] = 0; 3437 mcaf[1] = 0; 3438 3439 TAILQ_FOREACH(ifma, &sc->arpcom.ac_if.if_multiaddrs, ifma_link) { 3440 if (ifma->ifma_addr->sa_family != AF_LINK) 3441 continue; 3442 index = ds_crc(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)) 3443 >> 26; 3444 af[index >> 3] |= 1 << (index & 7); 3445 } 3446}
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