1/*- 2 * Written by: yen_cw@myson.com.tw 3 * Copyright (c) 2002 Myson Technology Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 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 FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Myson fast ethernet PCI NIC driver, available at: http://www.myson.com.tw/ 28 */ 29 30#include <sys/cdefs.h> 31__FBSDID("$FreeBSD: stable/11/sys/dev/my/if_my.c 331722 2018-03-29 02:50:57Z eadler $"); 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/sockio.h> 36#include <sys/mbuf.h> 37#include <sys/malloc.h> 38#include <sys/kernel.h> 39#include <sys/socket.h> 40#include <sys/queue.h> 41#include <sys/types.h> 42#include <sys/module.h> 43#include <sys/lock.h> 44#include <sys/mutex.h> 45 46#define NBPFILTER 1 47 48#include <net/if.h> 49#include <net/if_var.h> 50#include <net/if_arp.h> 51#include <net/ethernet.h> 52#include <net/if_media.h> 53#include <net/if_types.h> 54#include <net/if_dl.h> 55#include <net/bpf.h> 56 57#include <vm/vm.h> /* for vtophys */ 58#include <vm/pmap.h> /* for vtophys */ 59#include <machine/bus.h> 60#include <machine/resource.h> 61#include <sys/bus.h> 62#include <sys/rman.h> 63 64#include <dev/pci/pcireg.h> 65#include <dev/pci/pcivar.h> 66 67/* 68 * #define MY_USEIOSPACE 69 */ 70 71static int MY_USEIOSPACE = 1; 72 73#ifdef MY_USEIOSPACE 74#define MY_RES SYS_RES_IOPORT 75#define MY_RID MY_PCI_LOIO 76#else 77#define MY_RES SYS_RES_MEMORY 78#define MY_RID MY_PCI_LOMEM 79#endif 80 81 82#include <dev/my/if_myreg.h> 83 84/* 85 * Various supported device vendors/types and their names. 86 */ 87struct my_type *my_info_tmp; 88static struct my_type my_devs[] = { 89 {MYSONVENDORID, MTD800ID, "Myson MTD80X Based Fast Ethernet Card"}, 90 {MYSONVENDORID, MTD803ID, "Myson MTD80X Based Fast Ethernet Card"}, 91 {MYSONVENDORID, MTD891ID, "Myson MTD89X Based Giga Ethernet Card"}, 92 {0, 0, NULL} 93}; 94 95/* 96 * Various supported PHY vendors/types and their names. Note that this driver 97 * will work with pretty much any MII-compliant PHY, so failure to positively 98 * identify the chip is not a fatal error. 99 */ 100static struct my_type my_phys[] = { 101 {MysonPHYID0, MysonPHYID0, "<MYSON MTD981>"}, 102 {SeeqPHYID0, SeeqPHYID0, "<SEEQ 80225>"}, 103 {AhdocPHYID0, AhdocPHYID0, "<AHDOC 101>"}, 104 {MarvellPHYID0, MarvellPHYID0, "<MARVELL 88E1000>"}, 105 {LevelOnePHYID0, LevelOnePHYID0, "<LevelOne LXT1000>"}, 106 {0, 0, "<MII-compliant physical interface>"} 107}; 108 109static int my_probe(device_t); 110static int my_attach(device_t); 111static int my_detach(device_t); 112static int my_newbuf(struct my_softc *, struct my_chain_onefrag *); 113static int my_encap(struct my_softc *, struct my_chain *, struct mbuf *); 114static void my_rxeof(struct my_softc *); 115static void my_txeof(struct my_softc *); 116static void my_txeoc(struct my_softc *); 117static void my_intr(void *); 118static void my_start(struct ifnet *); 119static void my_start_locked(struct ifnet *); 120static int my_ioctl(struct ifnet *, u_long, caddr_t); 121static void my_init(void *); 122static void my_init_locked(struct my_softc *); 123static void my_stop(struct my_softc *); 124static void my_autoneg_timeout(void *); 125static void my_watchdog(void *); 126static int my_shutdown(device_t); 127static int my_ifmedia_upd(struct ifnet *); 128static void my_ifmedia_sts(struct ifnet *, struct ifmediareq *); 129static u_int16_t my_phy_readreg(struct my_softc *, int); 130static void my_phy_writereg(struct my_softc *, int, int); 131static void my_autoneg_xmit(struct my_softc *); 132static void my_autoneg_mii(struct my_softc *, int, int); 133static void my_setmode_mii(struct my_softc *, int); 134static void my_getmode_mii(struct my_softc *); 135static void my_setcfg(struct my_softc *, int); 136static void my_setmulti(struct my_softc *); 137static void my_reset(struct my_softc *); 138static int my_list_rx_init(struct my_softc *); 139static int my_list_tx_init(struct my_softc *); 140static long my_send_cmd_to_phy(struct my_softc *, int, int); 141 142#define MY_SETBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x)) 143#define MY_CLRBIT(sc, reg, x) CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x)) 144 145static device_method_t my_methods[] = { 146 /* Device interface */ 147 DEVMETHOD(device_probe, my_probe), 148 DEVMETHOD(device_attach, my_attach), 149 DEVMETHOD(device_detach, my_detach), 150 DEVMETHOD(device_shutdown, my_shutdown), 151 152 DEVMETHOD_END 153}; 154 155static driver_t my_driver = { 156 "my", 157 my_methods, 158 sizeof(struct my_softc) 159}; 160 161static devclass_t my_devclass; 162 163DRIVER_MODULE(my, pci, my_driver, my_devclass, 0, 0); 164MODULE_DEPEND(my, pci, 1, 1, 1); 165MODULE_DEPEND(my, ether, 1, 1, 1); 166 167static long 168my_send_cmd_to_phy(struct my_softc * sc, int opcode, int regad) 169{ 170 long miir; 171 int i; 172 int mask, data; 173 174 MY_LOCK_ASSERT(sc); 175 176 /* enable MII output */ 177 miir = CSR_READ_4(sc, MY_MANAGEMENT); 178 miir &= 0xfffffff0; 179 180 miir |= MY_MASK_MIIR_MII_WRITE + MY_MASK_MIIR_MII_MDO; 181 182 /* send 32 1's preamble */ 183 for (i = 0; i < 32; i++) { 184 /* low MDC; MDO is already high (miir) */ 185 miir &= ~MY_MASK_MIIR_MII_MDC; 186 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 187 188 /* high MDC */ 189 miir |= MY_MASK_MIIR_MII_MDC; 190 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 191 } 192 193 /* calculate ST+OP+PHYAD+REGAD+TA */ 194 data = opcode | (sc->my_phy_addr << 7) | (regad << 2); 195 196 /* sent out */ 197 mask = 0x8000; 198 while (mask) { 199 /* low MDC, prepare MDO */ 200 miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 201 if (mask & data) 202 miir |= MY_MASK_MIIR_MII_MDO; 203 204 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 205 /* high MDC */ 206 miir |= MY_MASK_MIIR_MII_MDC; 207 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 208 DELAY(30); 209 210 /* next */ 211 mask >>= 1; 212 if (mask == 0x2 && opcode == MY_OP_READ) 213 miir &= ~MY_MASK_MIIR_MII_WRITE; 214 } 215 216 return miir; 217} 218 219 220static u_int16_t 221my_phy_readreg(struct my_softc * sc, int reg) 222{ 223 long miir; 224 int mask, data; 225 226 MY_LOCK_ASSERT(sc); 227 228 if (sc->my_info->my_did == MTD803ID) 229 data = CSR_READ_2(sc, MY_PHYBASE + reg * 2); 230 else { 231 miir = my_send_cmd_to_phy(sc, MY_OP_READ, reg); 232 233 /* read data */ 234 mask = 0x8000; 235 data = 0; 236 while (mask) { 237 /* low MDC */ 238 miir &= ~MY_MASK_MIIR_MII_MDC; 239 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 240 241 /* read MDI */ 242 miir = CSR_READ_4(sc, MY_MANAGEMENT); 243 if (miir & MY_MASK_MIIR_MII_MDI) 244 data |= mask; 245 246 /* high MDC, and wait */ 247 miir |= MY_MASK_MIIR_MII_MDC; 248 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 249 DELAY(30); 250 251 /* next */ 252 mask >>= 1; 253 } 254 255 /* low MDC */ 256 miir &= ~MY_MASK_MIIR_MII_MDC; 257 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 258 } 259 260 return (u_int16_t) data; 261} 262 263 264static void 265my_phy_writereg(struct my_softc * sc, int reg, int data) 266{ 267 long miir; 268 int mask; 269 270 MY_LOCK_ASSERT(sc); 271 272 if (sc->my_info->my_did == MTD803ID) 273 CSR_WRITE_2(sc, MY_PHYBASE + reg * 2, data); 274 else { 275 miir = my_send_cmd_to_phy(sc, MY_OP_WRITE, reg); 276 277 /* write data */ 278 mask = 0x8000; 279 while (mask) { 280 /* low MDC, prepare MDO */ 281 miir &= ~(MY_MASK_MIIR_MII_MDC + MY_MASK_MIIR_MII_MDO); 282 if (mask & data) 283 miir |= MY_MASK_MIIR_MII_MDO; 284 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 285 DELAY(1); 286 287 /* high MDC */ 288 miir |= MY_MASK_MIIR_MII_MDC; 289 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 290 DELAY(1); 291 292 /* next */ 293 mask >>= 1; 294 } 295 296 /* low MDC */ 297 miir &= ~MY_MASK_MIIR_MII_MDC; 298 CSR_WRITE_4(sc, MY_MANAGEMENT, miir); 299 } 300 return; 301} 302 303 304/* 305 * Program the 64-bit multicast hash filter. 306 */ 307static void 308my_setmulti(struct my_softc * sc) 309{ 310 struct ifnet *ifp; 311 int h = 0; 312 u_int32_t hashes[2] = {0, 0}; 313 struct ifmultiaddr *ifma; 314 u_int32_t rxfilt; 315 int mcnt = 0; 316 317 MY_LOCK_ASSERT(sc); 318 319 ifp = sc->my_ifp; 320 321 rxfilt = CSR_READ_4(sc, MY_TCRRCR); 322 323 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 324 rxfilt |= MY_AM; 325 CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 326 CSR_WRITE_4(sc, MY_MAR0, 0xFFFFFFFF); 327 CSR_WRITE_4(sc, MY_MAR1, 0xFFFFFFFF); 328 329 return; 330 } 331 /* first, zot all the existing hash bits */ 332 CSR_WRITE_4(sc, MY_MAR0, 0); 333 CSR_WRITE_4(sc, MY_MAR1, 0); 334 335 /* now program new ones */ 336 if_maddr_rlock(ifp); 337 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 338 if (ifma->ifma_addr->sa_family != AF_LINK) 339 continue; 340 h = ~ether_crc32_be(LLADDR((struct sockaddr_dl *) 341 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 342 if (h < 32) 343 hashes[0] |= (1 << h); 344 else 345 hashes[1] |= (1 << (h - 32)); 346 mcnt++; 347 } 348 if_maddr_runlock(ifp); 349 350 if (mcnt) 351 rxfilt |= MY_AM; 352 else 353 rxfilt &= ~MY_AM; 354 CSR_WRITE_4(sc, MY_MAR0, hashes[0]); 355 CSR_WRITE_4(sc, MY_MAR1, hashes[1]); 356 CSR_WRITE_4(sc, MY_TCRRCR, rxfilt); 357 return; 358} 359 360/* 361 * Initiate an autonegotiation session. 362 */ 363static void 364my_autoneg_xmit(struct my_softc * sc) 365{ 366 u_int16_t phy_sts = 0; 367 368 MY_LOCK_ASSERT(sc); 369 370 my_phy_writereg(sc, PHY_BMCR, PHY_BMCR_RESET); 371 DELAY(500); 372 while (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_RESET); 373 374 phy_sts = my_phy_readreg(sc, PHY_BMCR); 375 phy_sts |= PHY_BMCR_AUTONEGENBL | PHY_BMCR_AUTONEGRSTR; 376 my_phy_writereg(sc, PHY_BMCR, phy_sts); 377 378 return; 379} 380 381static void 382my_autoneg_timeout(void *arg) 383{ 384 struct my_softc *sc; 385 386 sc = arg; 387 MY_LOCK_ASSERT(sc); 388 my_autoneg_mii(sc, MY_FLAG_DELAYTIMEO, 1); 389} 390 391/* 392 * Invoke autonegotiation on a PHY. 393 */ 394static void 395my_autoneg_mii(struct my_softc * sc, int flag, int verbose) 396{ 397 u_int16_t phy_sts = 0, media, advert, ability; 398 u_int16_t ability2 = 0; 399 struct ifnet *ifp; 400 struct ifmedia *ifm; 401 402 MY_LOCK_ASSERT(sc); 403 404 ifm = &sc->ifmedia; 405 ifp = sc->my_ifp; 406 407 ifm->ifm_media = IFM_ETHER | IFM_AUTO; 408 409#ifndef FORCE_AUTONEG_TFOUR 410 /* 411 * First, see if autoneg is supported. If not, there's no point in 412 * continuing. 413 */ 414 phy_sts = my_phy_readreg(sc, PHY_BMSR); 415 if (!(phy_sts & PHY_BMSR_CANAUTONEG)) { 416 if (verbose) 417 device_printf(sc->my_dev, 418 "autonegotiation not supported\n"); 419 ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 420 return; 421 } 422#endif 423 switch (flag) { 424 case MY_FLAG_FORCEDELAY: 425 /* 426 * XXX Never use this option anywhere but in the probe 427 * routine: making the kernel stop dead in its tracks for 428 * three whole seconds after we've gone multi-user is really 429 * bad manners. 430 */ 431 my_autoneg_xmit(sc); 432 DELAY(5000000); 433 break; 434 case MY_FLAG_SCHEDDELAY: 435 /* 436 * Wait for the transmitter to go idle before starting an 437 * autoneg session, otherwise my_start() may clobber our 438 * timeout, and we don't want to allow transmission during an 439 * autoneg session since that can screw it up. 440 */ 441 if (sc->my_cdata.my_tx_head != NULL) { 442 sc->my_want_auto = 1; 443 MY_UNLOCK(sc); 444 return; 445 } 446 my_autoneg_xmit(sc); 447 callout_reset(&sc->my_autoneg_timer, hz * 5, my_autoneg_timeout, 448 sc); 449 sc->my_autoneg = 1; 450 sc->my_want_auto = 0; 451 return; 452 case MY_FLAG_DELAYTIMEO: 453 callout_stop(&sc->my_autoneg_timer); 454 sc->my_autoneg = 0; 455 break; 456 default: 457 device_printf(sc->my_dev, "invalid autoneg flag: %d\n", flag); 458 return; 459 } 460 461 if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_AUTONEGCOMP) { 462 if (verbose) 463 device_printf(sc->my_dev, "autoneg complete, "); 464 phy_sts = my_phy_readreg(sc, PHY_BMSR); 465 } else { 466 if (verbose) 467 device_printf(sc->my_dev, "autoneg not complete, "); 468 } 469 470 media = my_phy_readreg(sc, PHY_BMCR); 471 472 /* Link is good. Report modes and set duplex mode. */ 473 if (my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT) { 474 if (verbose) 475 device_printf(sc->my_dev, "link status good. "); 476 advert = my_phy_readreg(sc, PHY_ANAR); 477 ability = my_phy_readreg(sc, PHY_LPAR); 478 if ((sc->my_pinfo->my_vid == MarvellPHYID0) || 479 (sc->my_pinfo->my_vid == LevelOnePHYID0)) { 480 ability2 = my_phy_readreg(sc, PHY_1000SR); 481 if (ability2 & PHY_1000SR_1000BTXFULL) { 482 advert = 0; 483 ability = 0; 484 /* 485 * this version did not support 1000M, 486 * ifm->ifm_media = 487 * IFM_ETHER|IFM_1000_T|IFM_FDX; 488 */ 489 ifm->ifm_media = 490 IFM_ETHER | IFM_100_TX | IFM_FDX; 491 media &= ~PHY_BMCR_SPEEDSEL; 492 media |= PHY_BMCR_1000; 493 media |= PHY_BMCR_DUPLEX; 494 printf("(full-duplex, 1000Mbps)\n"); 495 } else if (ability2 & PHY_1000SR_1000BTXHALF) { 496 advert = 0; 497 ability = 0; 498 /* 499 * this version did not support 1000M, 500 * ifm->ifm_media = IFM_ETHER|IFM_1000_T; 501 */ 502 ifm->ifm_media = IFM_ETHER | IFM_100_TX; 503 media &= ~PHY_BMCR_SPEEDSEL; 504 media &= ~PHY_BMCR_DUPLEX; 505 media |= PHY_BMCR_1000; 506 printf("(half-duplex, 1000Mbps)\n"); 507 } 508 } 509 if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) { 510 ifm->ifm_media = IFM_ETHER | IFM_100_T4; 511 media |= PHY_BMCR_SPEEDSEL; 512 media &= ~PHY_BMCR_DUPLEX; 513 printf("(100baseT4)\n"); 514 } else if (advert & PHY_ANAR_100BTXFULL && 515 ability & PHY_ANAR_100BTXFULL) { 516 ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 517 media |= PHY_BMCR_SPEEDSEL; 518 media |= PHY_BMCR_DUPLEX; 519 printf("(full-duplex, 100Mbps)\n"); 520 } else if (advert & PHY_ANAR_100BTXHALF && 521 ability & PHY_ANAR_100BTXHALF) { 522 ifm->ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 523 media |= PHY_BMCR_SPEEDSEL; 524 media &= ~PHY_BMCR_DUPLEX; 525 printf("(half-duplex, 100Mbps)\n"); 526 } else if (advert & PHY_ANAR_10BTFULL && 527 ability & PHY_ANAR_10BTFULL) { 528 ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 529 media &= ~PHY_BMCR_SPEEDSEL; 530 media |= PHY_BMCR_DUPLEX; 531 printf("(full-duplex, 10Mbps)\n"); 532 } else if (advert) { 533 ifm->ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 534 media &= ~PHY_BMCR_SPEEDSEL; 535 media &= ~PHY_BMCR_DUPLEX; 536 printf("(half-duplex, 10Mbps)\n"); 537 } 538 media &= ~PHY_BMCR_AUTONEGENBL; 539 540 /* Set ASIC's duplex mode to match the PHY. */ 541 my_phy_writereg(sc, PHY_BMCR, media); 542 my_setcfg(sc, media); 543 } else { 544 if (verbose) 545 device_printf(sc->my_dev, "no carrier\n"); 546 } 547 548 my_init_locked(sc); 549 if (sc->my_tx_pend) { 550 sc->my_autoneg = 0; 551 sc->my_tx_pend = 0; 552 my_start_locked(ifp); 553 } 554 return; 555} 556 557/* 558 * To get PHY ability. 559 */ 560static void 561my_getmode_mii(struct my_softc * sc) 562{ 563 u_int16_t bmsr; 564 struct ifnet *ifp; 565 566 MY_LOCK_ASSERT(sc); 567 ifp = sc->my_ifp; 568 bmsr = my_phy_readreg(sc, PHY_BMSR); 569 if (bootverbose) 570 device_printf(sc->my_dev, "PHY status word: %x\n", bmsr); 571 572 /* fallback */ 573 sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_HDX; 574 575 if (bmsr & PHY_BMSR_10BTHALF) { 576 if (bootverbose) 577 device_printf(sc->my_dev, 578 "10Mbps half-duplex mode supported\n"); 579 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_HDX, 580 0, NULL); 581 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T, 0, NULL); 582 } 583 if (bmsr & PHY_BMSR_10BTFULL) { 584 if (bootverbose) 585 device_printf(sc->my_dev, 586 "10Mbps full-duplex mode supported\n"); 587 588 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_10_T | IFM_FDX, 589 0, NULL); 590 sc->ifmedia.ifm_media = IFM_ETHER | IFM_10_T | IFM_FDX; 591 } 592 if (bmsr & PHY_BMSR_100BTXHALF) { 593 if (bootverbose) 594 device_printf(sc->my_dev, 595 "100Mbps half-duplex mode supported\n"); 596 ifp->if_baudrate = 100000000; 597 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX, 0, NULL); 598 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_HDX, 599 0, NULL); 600 sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_HDX; 601 } 602 if (bmsr & PHY_BMSR_100BTXFULL) { 603 if (bootverbose) 604 device_printf(sc->my_dev, 605 "100Mbps full-duplex mode supported\n"); 606 ifp->if_baudrate = 100000000; 607 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_TX | IFM_FDX, 608 0, NULL); 609 sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_TX | IFM_FDX; 610 } 611 /* Some also support 100BaseT4. */ 612 if (bmsr & PHY_BMSR_100BT4) { 613 if (bootverbose) 614 device_printf(sc->my_dev, "100baseT4 mode supported\n"); 615 ifp->if_baudrate = 100000000; 616 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_100_T4, 0, NULL); 617 sc->ifmedia.ifm_media = IFM_ETHER | IFM_100_T4; 618#ifdef FORCE_AUTONEG_TFOUR 619 if (bootverbose) 620 device_printf(sc->my_dev, 621 "forcing on autoneg support for BT4\n"); 622 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0 NULL): 623 sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 624#endif 625 } 626#if 0 /* this version did not support 1000M, */ 627 if (sc->my_pinfo->my_vid == MarvellPHYID0) { 628 if (bootverbose) 629 device_printf(sc->my_dev, 630 "1000Mbps half-duplex mode supported\n"); 631 632 ifp->if_baudrate = 1000000000; 633 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T, 0, NULL); 634 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_HDX, 635 0, NULL); 636 if (bootverbose) 637 device_printf(sc->my_dev, 638 "1000Mbps full-duplex mode supported\n"); 639 ifp->if_baudrate = 1000000000; 640 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_1000_T | IFM_FDX, 641 0, NULL); 642 sc->ifmedia.ifm_media = IFM_ETHER | IFM_1000_T | IFM_FDX; 643 } 644#endif 645 if (bmsr & PHY_BMSR_CANAUTONEG) { 646 if (bootverbose) 647 device_printf(sc->my_dev, "autoneg supported\n"); 648 ifmedia_add(&sc->ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL); 649 sc->ifmedia.ifm_media = IFM_ETHER | IFM_AUTO; 650 } 651 return; 652} 653 654/* 655 * Set speed and duplex mode. 656 */ 657static void 658my_setmode_mii(struct my_softc * sc, int media) 659{ 660 u_int16_t bmcr; 661 662 MY_LOCK_ASSERT(sc); 663 /* 664 * If an autoneg session is in progress, stop it. 665 */ 666 if (sc->my_autoneg) { 667 device_printf(sc->my_dev, "canceling autoneg session\n"); 668 callout_stop(&sc->my_autoneg_timer); 669 sc->my_autoneg = sc->my_want_auto = 0; 670 bmcr = my_phy_readreg(sc, PHY_BMCR); 671 bmcr &= ~PHY_BMCR_AUTONEGENBL; 672 my_phy_writereg(sc, PHY_BMCR, bmcr); 673 } 674 device_printf(sc->my_dev, "selecting MII, "); 675 bmcr = my_phy_readreg(sc, PHY_BMCR); 676 bmcr &= ~(PHY_BMCR_AUTONEGENBL | PHY_BMCR_SPEEDSEL | PHY_BMCR_1000 | 677 PHY_BMCR_DUPLEX | PHY_BMCR_LOOPBK); 678 679#if 0 /* this version did not support 1000M, */ 680 if (IFM_SUBTYPE(media) == IFM_1000_T) { 681 printf("1000Mbps/T4, half-duplex\n"); 682 bmcr &= ~PHY_BMCR_SPEEDSEL; 683 bmcr &= ~PHY_BMCR_DUPLEX; 684 bmcr |= PHY_BMCR_1000; 685 } 686#endif 687 if (IFM_SUBTYPE(media) == IFM_100_T4) { 688 printf("100Mbps/T4, half-duplex\n"); 689 bmcr |= PHY_BMCR_SPEEDSEL; 690 bmcr &= ~PHY_BMCR_DUPLEX; 691 } 692 if (IFM_SUBTYPE(media) == IFM_100_TX) { 693 printf("100Mbps, "); 694 bmcr |= PHY_BMCR_SPEEDSEL; 695 } 696 if (IFM_SUBTYPE(media) == IFM_10_T) { 697 printf("10Mbps, "); 698 bmcr &= ~PHY_BMCR_SPEEDSEL; 699 } 700 if ((media & IFM_GMASK) == IFM_FDX) { 701 printf("full duplex\n"); 702 bmcr |= PHY_BMCR_DUPLEX; 703 } else { 704 printf("half duplex\n"); 705 bmcr &= ~PHY_BMCR_DUPLEX; 706 } 707 my_phy_writereg(sc, PHY_BMCR, bmcr); 708 my_setcfg(sc, bmcr); 709 return; 710} 711 712/* 713 * The Myson manual states that in order to fiddle with the 'full-duplex' and 714 * '100Mbps' bits in the netconfig register, we first have to put the 715 * transmit and/or receive logic in the idle state. 716 */ 717static void 718my_setcfg(struct my_softc * sc, int bmcr) 719{ 720 int i, restart = 0; 721 722 MY_LOCK_ASSERT(sc); 723 if (CSR_READ_4(sc, MY_TCRRCR) & (MY_TE | MY_RE)) { 724 restart = 1; 725 MY_CLRBIT(sc, MY_TCRRCR, (MY_TE | MY_RE)); 726 for (i = 0; i < MY_TIMEOUT; i++) { 727 DELAY(10); 728 if (!(CSR_READ_4(sc, MY_TCRRCR) & 729 (MY_TXRUN | MY_RXRUN))) 730 break; 731 } 732 if (i == MY_TIMEOUT) 733 device_printf(sc->my_dev, 734 "failed to force tx and rx to idle \n"); 735 } 736 MY_CLRBIT(sc, MY_TCRRCR, MY_PS1000); 737 MY_CLRBIT(sc, MY_TCRRCR, MY_PS10); 738 if (bmcr & PHY_BMCR_1000) 739 MY_SETBIT(sc, MY_TCRRCR, MY_PS1000); 740 else if (!(bmcr & PHY_BMCR_SPEEDSEL)) 741 MY_SETBIT(sc, MY_TCRRCR, MY_PS10); 742 if (bmcr & PHY_BMCR_DUPLEX) 743 MY_SETBIT(sc, MY_TCRRCR, MY_FD); 744 else 745 MY_CLRBIT(sc, MY_TCRRCR, MY_FD); 746 if (restart) 747 MY_SETBIT(sc, MY_TCRRCR, MY_TE | MY_RE); 748 return; 749} 750 751static void 752my_reset(struct my_softc * sc) 753{ 754 int i; 755 756 MY_LOCK_ASSERT(sc); 757 MY_SETBIT(sc, MY_BCR, MY_SWR); 758 for (i = 0; i < MY_TIMEOUT; i++) { 759 DELAY(10); 760 if (!(CSR_READ_4(sc, MY_BCR) & MY_SWR)) 761 break; 762 } 763 if (i == MY_TIMEOUT) 764 device_printf(sc->my_dev, "reset never completed!\n"); 765 766 /* Wait a little while for the chip to get its brains in order. */ 767 DELAY(1000); 768 return; 769} 770 771/* 772 * Probe for a Myson chip. Check the PCI vendor and device IDs against our 773 * list and return a device name if we find a match. 774 */ 775static int 776my_probe(device_t dev) 777{ 778 struct my_type *t; 779 780 t = my_devs; 781 while (t->my_name != NULL) { 782 if ((pci_get_vendor(dev) == t->my_vid) && 783 (pci_get_device(dev) == t->my_did)) { 784 device_set_desc(dev, t->my_name); 785 my_info_tmp = t; 786 return (BUS_PROBE_DEFAULT); 787 } 788 t++; 789 } 790 return (ENXIO); 791} 792 793/* 794 * Attach the interface. Allocate softc structures, do ifmedia setup and 795 * ethernet/BPF attach. 796 */ 797static int 798my_attach(device_t dev) 799{ 800 int i; 801 u_char eaddr[ETHER_ADDR_LEN]; 802 u_int32_t iobase; 803 struct my_softc *sc; 804 struct ifnet *ifp; 805 int media = IFM_ETHER | IFM_100_TX | IFM_FDX; 806 unsigned int round; 807 caddr_t roundptr; 808 struct my_type *p; 809 u_int16_t phy_vid, phy_did, phy_sts = 0; 810 int rid, error = 0; 811 812 sc = device_get_softc(dev); 813 sc->my_dev = dev; 814 mtx_init(&sc->my_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 815 MTX_DEF); 816 callout_init_mtx(&sc->my_autoneg_timer, &sc->my_mtx, 0); 817 callout_init_mtx(&sc->my_watchdog, &sc->my_mtx, 0); 818 819 /* 820 * Map control/status registers. 821 */ 822 pci_enable_busmaster(dev); 823 824 if (my_info_tmp->my_did == MTD800ID) { 825 iobase = pci_read_config(dev, MY_PCI_LOIO, 4); 826 if (iobase & 0x300) 827 MY_USEIOSPACE = 0; 828 } 829 830 rid = MY_RID; 831 sc->my_res = bus_alloc_resource_any(dev, MY_RES, &rid, RF_ACTIVE); 832 833 if (sc->my_res == NULL) { 834 device_printf(dev, "couldn't map ports/memory\n"); 835 error = ENXIO; 836 goto destroy_mutex; 837 } 838 sc->my_btag = rman_get_bustag(sc->my_res); 839 sc->my_bhandle = rman_get_bushandle(sc->my_res); 840 841 rid = 0; 842 sc->my_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 843 RF_SHAREABLE | RF_ACTIVE); 844 845 if (sc->my_irq == NULL) { 846 device_printf(dev, "couldn't map interrupt\n"); 847 error = ENXIO; 848 goto release_io; 849 } 850 851 sc->my_info = my_info_tmp; 852 853 /* Reset the adapter. */ 854 MY_LOCK(sc); 855 my_reset(sc); 856 MY_UNLOCK(sc); 857 858 /* 859 * Get station address 860 */ 861 for (i = 0; i < ETHER_ADDR_LEN; ++i) 862 eaddr[i] = CSR_READ_1(sc, MY_PAR0 + i); 863 864 sc->my_ldata_ptr = malloc(sizeof(struct my_list_data) + 8, 865 M_DEVBUF, M_NOWAIT); 866 if (sc->my_ldata_ptr == NULL) { 867 device_printf(dev, "no memory for list buffers!\n"); 868 error = ENXIO; 869 goto release_irq; 870 } 871 sc->my_ldata = (struct my_list_data *) sc->my_ldata_ptr; 872 round = (uintptr_t)sc->my_ldata_ptr & 0xF; 873 roundptr = sc->my_ldata_ptr; 874 for (i = 0; i < 8; i++) { 875 if (round % 8) { 876 round++; 877 roundptr++; 878 } else 879 break; 880 } 881 sc->my_ldata = (struct my_list_data *) roundptr; 882 bzero(sc->my_ldata, sizeof(struct my_list_data)); 883 884 ifp = sc->my_ifp = if_alloc(IFT_ETHER); 885 if (ifp == NULL) { 886 device_printf(dev, "can not if_alloc()\n"); 887 error = ENOSPC; 888 goto free_ldata; 889 } 890 ifp->if_softc = sc; 891 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 892 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 893 ifp->if_ioctl = my_ioctl; 894 ifp->if_start = my_start; 895 ifp->if_init = my_init; 896 ifp->if_baudrate = 10000000; 897 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 898 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 899 IFQ_SET_READY(&ifp->if_snd); 900 901 if (sc->my_info->my_did == MTD803ID) 902 sc->my_pinfo = my_phys; 903 else { 904 if (bootverbose) 905 device_printf(dev, "probing for a PHY\n"); 906 MY_LOCK(sc); 907 for (i = MY_PHYADDR_MIN; i < MY_PHYADDR_MAX + 1; i++) { 908 if (bootverbose) 909 device_printf(dev, "checking address: %d\n", i); 910 sc->my_phy_addr = i; 911 phy_sts = my_phy_readreg(sc, PHY_BMSR); 912 if ((phy_sts != 0) && (phy_sts != 0xffff)) 913 break; 914 else 915 phy_sts = 0; 916 } 917 if (phy_sts) { 918 phy_vid = my_phy_readreg(sc, PHY_VENID); 919 phy_did = my_phy_readreg(sc, PHY_DEVID); 920 if (bootverbose) { 921 device_printf(dev, "found PHY at address %d, ", 922 sc->my_phy_addr); 923 printf("vendor id: %x device id: %x\n", 924 phy_vid, phy_did); 925 } 926 p = my_phys; 927 while (p->my_vid) { 928 if (phy_vid == p->my_vid) { 929 sc->my_pinfo = p; 930 break; 931 } 932 p++; 933 } 934 if (sc->my_pinfo == NULL) 935 sc->my_pinfo = &my_phys[PHY_UNKNOWN]; 936 if (bootverbose) 937 device_printf(dev, "PHY type: %s\n", 938 sc->my_pinfo->my_name); 939 } else { 940 MY_UNLOCK(sc); 941 device_printf(dev, "MII without any phy!\n"); 942 error = ENXIO; 943 goto free_if; 944 } 945 MY_UNLOCK(sc); 946 } 947 948 /* Do ifmedia setup. */ 949 ifmedia_init(&sc->ifmedia, 0, my_ifmedia_upd, my_ifmedia_sts); 950 MY_LOCK(sc); 951 my_getmode_mii(sc); 952 my_autoneg_mii(sc, MY_FLAG_FORCEDELAY, 1); 953 media = sc->ifmedia.ifm_media; 954 my_stop(sc); 955 MY_UNLOCK(sc); 956 ifmedia_set(&sc->ifmedia, media); 957 958 ether_ifattach(ifp, eaddr); 959 960 error = bus_setup_intr(dev, sc->my_irq, INTR_TYPE_NET | INTR_MPSAFE, 961 NULL, my_intr, sc, &sc->my_intrhand); 962 963 if (error) { 964 device_printf(dev, "couldn't set up irq\n"); 965 goto detach_if; 966 } 967 968 return (0); 969 970detach_if: 971 ether_ifdetach(ifp); 972free_if: 973 if_free(ifp); 974free_ldata: 975 free(sc->my_ldata_ptr, M_DEVBUF); 976release_irq: 977 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 978release_io: 979 bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 980destroy_mutex: 981 mtx_destroy(&sc->my_mtx); 982 return (error); 983} 984 985static int 986my_detach(device_t dev) 987{ 988 struct my_softc *sc; 989 struct ifnet *ifp; 990 991 sc = device_get_softc(dev); 992 ifp = sc->my_ifp; 993 ether_ifdetach(ifp); 994 MY_LOCK(sc); 995 my_stop(sc); 996 MY_UNLOCK(sc); 997 bus_teardown_intr(dev, sc->my_irq, sc->my_intrhand); 998 callout_drain(&sc->my_watchdog); 999 callout_drain(&sc->my_autoneg_timer); 1000 1001 if_free(ifp); 1002 free(sc->my_ldata_ptr, M_DEVBUF); 1003 1004 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->my_irq); 1005 bus_release_resource(dev, MY_RES, MY_RID, sc->my_res); 1006 mtx_destroy(&sc->my_mtx); 1007 return (0); 1008} 1009 1010 1011/* 1012 * Initialize the transmit descriptors. 1013 */ 1014static int 1015my_list_tx_init(struct my_softc * sc) 1016{ 1017 struct my_chain_data *cd; 1018 struct my_list_data *ld; 1019 int i; 1020 1021 MY_LOCK_ASSERT(sc); 1022 cd = &sc->my_cdata; 1023 ld = sc->my_ldata; 1024 for (i = 0; i < MY_TX_LIST_CNT; i++) { 1025 cd->my_tx_chain[i].my_ptr = &ld->my_tx_list[i]; 1026 if (i == (MY_TX_LIST_CNT - 1)) 1027 cd->my_tx_chain[i].my_nextdesc = &cd->my_tx_chain[0]; 1028 else 1029 cd->my_tx_chain[i].my_nextdesc = 1030 &cd->my_tx_chain[i + 1]; 1031 } 1032 cd->my_tx_free = &cd->my_tx_chain[0]; 1033 cd->my_tx_tail = cd->my_tx_head = NULL; 1034 return (0); 1035} 1036 1037/* 1038 * Initialize the RX descriptors and allocate mbufs for them. Note that we 1039 * arrange the descriptors in a closed ring, so that the last descriptor 1040 * points back to the first. 1041 */ 1042static int 1043my_list_rx_init(struct my_softc * sc) 1044{ 1045 struct my_chain_data *cd; 1046 struct my_list_data *ld; 1047 int i; 1048 1049 MY_LOCK_ASSERT(sc); 1050 cd = &sc->my_cdata; 1051 ld = sc->my_ldata; 1052 for (i = 0; i < MY_RX_LIST_CNT; i++) { 1053 cd->my_rx_chain[i].my_ptr = 1054 (struct my_desc *) & ld->my_rx_list[i]; 1055 if (my_newbuf(sc, &cd->my_rx_chain[i]) == ENOBUFS) { 1056 MY_UNLOCK(sc); 1057 return (ENOBUFS); 1058 } 1059 if (i == (MY_RX_LIST_CNT - 1)) { 1060 cd->my_rx_chain[i].my_nextdesc = &cd->my_rx_chain[0]; 1061 ld->my_rx_list[i].my_next = vtophys(&ld->my_rx_list[0]); 1062 } else { 1063 cd->my_rx_chain[i].my_nextdesc = 1064 &cd->my_rx_chain[i + 1]; 1065 ld->my_rx_list[i].my_next = 1066 vtophys(&ld->my_rx_list[i + 1]); 1067 } 1068 } 1069 cd->my_rx_head = &cd->my_rx_chain[0]; 1070 return (0); 1071} 1072 1073/* 1074 * Initialize an RX descriptor and attach an MBUF cluster. 1075 */ 1076static int 1077my_newbuf(struct my_softc * sc, struct my_chain_onefrag * c) 1078{ 1079 struct mbuf *m_new = NULL; 1080 1081 MY_LOCK_ASSERT(sc); 1082 MGETHDR(m_new, M_NOWAIT, MT_DATA); 1083 if (m_new == NULL) { 1084 device_printf(sc->my_dev, 1085 "no memory for rx list -- packet dropped!\n"); 1086 return (ENOBUFS); 1087 } 1088 if (!(MCLGET(m_new, M_NOWAIT))) { 1089 device_printf(sc->my_dev, 1090 "no memory for rx list -- packet dropped!\n"); 1091 m_freem(m_new); 1092 return (ENOBUFS); 1093 } 1094 c->my_mbuf = m_new; 1095 c->my_ptr->my_data = vtophys(mtod(m_new, caddr_t)); 1096 c->my_ptr->my_ctl = (MCLBYTES - 1) << MY_RBSShift; 1097 c->my_ptr->my_status = MY_OWNByNIC; 1098 return (0); 1099} 1100 1101/* 1102 * A frame has been uploaded: pass the resulting mbuf chain up to the higher 1103 * level protocols. 1104 */ 1105static void 1106my_rxeof(struct my_softc * sc) 1107{ 1108 struct ether_header *eh; 1109 struct mbuf *m; 1110 struct ifnet *ifp; 1111 struct my_chain_onefrag *cur_rx; 1112 int total_len = 0; 1113 u_int32_t rxstat; 1114 1115 MY_LOCK_ASSERT(sc); 1116 ifp = sc->my_ifp; 1117 while (!((rxstat = sc->my_cdata.my_rx_head->my_ptr->my_status) 1118 & MY_OWNByNIC)) { 1119 cur_rx = sc->my_cdata.my_rx_head; 1120 sc->my_cdata.my_rx_head = cur_rx->my_nextdesc; 1121 1122 if (rxstat & MY_ES) { /* error summary: give up this rx pkt */ 1123 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1124 cur_rx->my_ptr->my_status = MY_OWNByNIC; 1125 continue; 1126 } 1127 /* No errors; receive the packet. */ 1128 total_len = (rxstat & MY_FLNGMASK) >> MY_FLNGShift; 1129 total_len -= ETHER_CRC_LEN; 1130 1131 if (total_len < MINCLSIZE) { 1132 m = m_devget(mtod(cur_rx->my_mbuf, char *), 1133 total_len, 0, ifp, NULL); 1134 cur_rx->my_ptr->my_status = MY_OWNByNIC; 1135 if (m == NULL) { 1136 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1137 continue; 1138 } 1139 } else { 1140 m = cur_rx->my_mbuf; 1141 /* 1142 * Try to conjure up a new mbuf cluster. If that 1143 * fails, it means we have an out of memory condition 1144 * and should leave the buffer in place and continue. 1145 * This will result in a lost packet, but there's 1146 * little else we can do in this situation. 1147 */ 1148 if (my_newbuf(sc, cur_rx) == ENOBUFS) { 1149 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1150 cur_rx->my_ptr->my_status = MY_OWNByNIC; 1151 continue; 1152 } 1153 m->m_pkthdr.rcvif = ifp; 1154 m->m_pkthdr.len = m->m_len = total_len; 1155 } 1156 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 1157 eh = mtod(m, struct ether_header *); 1158#if NBPFILTER > 0 1159 /* 1160 * Handle BPF listeners. Let the BPF user see the packet, but 1161 * don't pass it up to the ether_input() layer unless it's a 1162 * broadcast packet, multicast packet, matches our ethernet 1163 * address or the interface is in promiscuous mode. 1164 */ 1165 if (bpf_peers_present(ifp->if_bpf)) { 1166 bpf_mtap(ifp->if_bpf, m); 1167 if (ifp->if_flags & IFF_PROMISC && 1168 (bcmp(eh->ether_dhost, IF_LLADDR(sc->my_ifp), 1169 ETHER_ADDR_LEN) && 1170 (eh->ether_dhost[0] & 1) == 0)) { 1171 m_freem(m); 1172 continue; 1173 } 1174 } 1175#endif 1176 MY_UNLOCK(sc); 1177 (*ifp->if_input)(ifp, m); 1178 MY_LOCK(sc); 1179 } 1180 return; 1181} 1182 1183 1184/* 1185 * A frame was downloaded to the chip. It's safe for us to clean up the list 1186 * buffers. 1187 */ 1188static void 1189my_txeof(struct my_softc * sc) 1190{ 1191 struct my_chain *cur_tx; 1192 struct ifnet *ifp; 1193 1194 MY_LOCK_ASSERT(sc); 1195 ifp = sc->my_ifp; 1196 /* Clear the timeout timer. */ 1197 sc->my_timer = 0; 1198 if (sc->my_cdata.my_tx_head == NULL) { 1199 return; 1200 } 1201 /* 1202 * Go through our tx list and free mbufs for those frames that have 1203 * been transmitted. 1204 */ 1205 while (sc->my_cdata.my_tx_head->my_mbuf != NULL) { 1206 u_int32_t txstat; 1207 1208 cur_tx = sc->my_cdata.my_tx_head; 1209 txstat = MY_TXSTATUS(cur_tx); 1210 if ((txstat & MY_OWNByNIC) || txstat == MY_UNSENT) 1211 break; 1212 if (!(CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced)) { 1213 if (txstat & MY_TXERR) { 1214 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1215 if (txstat & MY_EC) /* excessive collision */ 1216 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 1217 if (txstat & MY_LC) /* late collision */ 1218 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1); 1219 } 1220 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1221 (txstat & MY_NCRMASK) >> MY_NCRShift); 1222 } 1223 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 1224 m_freem(cur_tx->my_mbuf); 1225 cur_tx->my_mbuf = NULL; 1226 if (sc->my_cdata.my_tx_head == sc->my_cdata.my_tx_tail) { 1227 sc->my_cdata.my_tx_head = NULL; 1228 sc->my_cdata.my_tx_tail = NULL; 1229 break; 1230 } 1231 sc->my_cdata.my_tx_head = cur_tx->my_nextdesc; 1232 } 1233 if (CSR_READ_4(sc, MY_TCRRCR) & MY_Enhanced) { 1234 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, (CSR_READ_4(sc, MY_TSR) & MY_NCRMask)); 1235 } 1236 return; 1237} 1238 1239/* 1240 * TX 'end of channel' interrupt handler. 1241 */ 1242static void 1243my_txeoc(struct my_softc * sc) 1244{ 1245 struct ifnet *ifp; 1246 1247 MY_LOCK_ASSERT(sc); 1248 ifp = sc->my_ifp; 1249 sc->my_timer = 0; 1250 if (sc->my_cdata.my_tx_head == NULL) { 1251 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1252 sc->my_cdata.my_tx_tail = NULL; 1253 if (sc->my_want_auto) 1254 my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 1255 } else { 1256 if (MY_TXOWN(sc->my_cdata.my_tx_head) == MY_UNSENT) { 1257 MY_TXOWN(sc->my_cdata.my_tx_head) = MY_OWNByNIC; 1258 sc->my_timer = 5; 1259 CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); 1260 } 1261 } 1262 return; 1263} 1264 1265static void 1266my_intr(void *arg) 1267{ 1268 struct my_softc *sc; 1269 struct ifnet *ifp; 1270 u_int32_t status; 1271 1272 sc = arg; 1273 MY_LOCK(sc); 1274 ifp = sc->my_ifp; 1275 if (!(ifp->if_flags & IFF_UP)) { 1276 MY_UNLOCK(sc); 1277 return; 1278 } 1279 /* Disable interrupts. */ 1280 CSR_WRITE_4(sc, MY_IMR, 0x00000000); 1281 1282 for (;;) { 1283 status = CSR_READ_4(sc, MY_ISR); 1284 status &= MY_INTRS; 1285 if (status) 1286 CSR_WRITE_4(sc, MY_ISR, status); 1287 else 1288 break; 1289 1290 if (status & MY_RI) /* receive interrupt */ 1291 my_rxeof(sc); 1292 1293 if ((status & MY_RBU) || (status & MY_RxErr)) { 1294 /* rx buffer unavailable or rx error */ 1295 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 1296#ifdef foo 1297 my_stop(sc); 1298 my_reset(sc); 1299 my_init_locked(sc); 1300#endif 1301 } 1302 if (status & MY_TI) /* tx interrupt */ 1303 my_txeof(sc); 1304 if (status & MY_ETI) /* tx early interrupt */ 1305 my_txeof(sc); 1306 if (status & MY_TBU) /* tx buffer unavailable */ 1307 my_txeoc(sc); 1308 1309#if 0 /* 90/1/18 delete */ 1310 if (status & MY_FBE) { 1311 my_reset(sc); 1312 my_init_locked(sc); 1313 } 1314#endif 1315 1316 } 1317 1318 /* Re-enable interrupts. */ 1319 CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 1320 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 1321 my_start_locked(ifp); 1322 MY_UNLOCK(sc); 1323 return; 1324} 1325 1326/* 1327 * Encapsulate an mbuf chain in a descriptor by coupling the mbuf data 1328 * pointers to the fragment pointers. 1329 */ 1330static int 1331my_encap(struct my_softc * sc, struct my_chain * c, struct mbuf * m_head) 1332{ 1333 struct my_desc *f = NULL; 1334 int total_len; 1335 struct mbuf *m, *m_new = NULL; 1336 1337 MY_LOCK_ASSERT(sc); 1338 /* calculate the total tx pkt length */ 1339 total_len = 0; 1340 for (m = m_head; m != NULL; m = m->m_next) 1341 total_len += m->m_len; 1342 /* 1343 * Start packing the mbufs in this chain into the fragment pointers. 1344 * Stop when we run out of fragments or hit the end of the mbuf 1345 * chain. 1346 */ 1347 m = m_head; 1348 MGETHDR(m_new, M_NOWAIT, MT_DATA); 1349 if (m_new == NULL) { 1350 device_printf(sc->my_dev, "no memory for tx list"); 1351 return (1); 1352 } 1353 if (m_head->m_pkthdr.len > MHLEN) { 1354 if (!(MCLGET(m_new, M_NOWAIT))) { 1355 m_freem(m_new); 1356 device_printf(sc->my_dev, "no memory for tx list"); 1357 return (1); 1358 } 1359 } 1360 m_copydata(m_head, 0, m_head->m_pkthdr.len, mtod(m_new, caddr_t)); 1361 m_new->m_pkthdr.len = m_new->m_len = m_head->m_pkthdr.len; 1362 m_freem(m_head); 1363 m_head = m_new; 1364 f = &c->my_ptr->my_frag[0]; 1365 f->my_status = 0; 1366 f->my_data = vtophys(mtod(m_new, caddr_t)); 1367 total_len = m_new->m_len; 1368 f->my_ctl = MY_TXFD | MY_TXLD | MY_CRCEnable | MY_PADEnable; 1369 f->my_ctl |= total_len << MY_PKTShift; /* pkt size */ 1370 f->my_ctl |= total_len; /* buffer size */ 1371 /* 89/12/29 add, for mtd891 *//* [ 89? ] */ 1372 if (sc->my_info->my_did == MTD891ID) 1373 f->my_ctl |= MY_ETIControl | MY_RetryTxLC; 1374 c->my_mbuf = m_head; 1375 c->my_lastdesc = 0; 1376 MY_TXNEXT(c) = vtophys(&c->my_nextdesc->my_ptr->my_frag[0]); 1377 return (0); 1378} 1379 1380/* 1381 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 1382 * to the mbuf data regions directly in the transmit lists. We also save a 1383 * copy of the pointers since the transmit list fragment pointers are 1384 * physical addresses. 1385 */ 1386static void 1387my_start(struct ifnet * ifp) 1388{ 1389 struct my_softc *sc; 1390 1391 sc = ifp->if_softc; 1392 MY_LOCK(sc); 1393 my_start_locked(ifp); 1394 MY_UNLOCK(sc); 1395} 1396 1397static void 1398my_start_locked(struct ifnet * ifp) 1399{ 1400 struct my_softc *sc; 1401 struct mbuf *m_head = NULL; 1402 struct my_chain *cur_tx = NULL, *start_tx; 1403 1404 sc = ifp->if_softc; 1405 MY_LOCK_ASSERT(sc); 1406 if (sc->my_autoneg) { 1407 sc->my_tx_pend = 1; 1408 return; 1409 } 1410 /* 1411 * Check for an available queue slot. If there are none, punt. 1412 */ 1413 if (sc->my_cdata.my_tx_free->my_mbuf != NULL) { 1414 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1415 return; 1416 } 1417 start_tx = sc->my_cdata.my_tx_free; 1418 while (sc->my_cdata.my_tx_free->my_mbuf == NULL) { 1419 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 1420 if (m_head == NULL) 1421 break; 1422 1423 /* Pick a descriptor off the free list. */ 1424 cur_tx = sc->my_cdata.my_tx_free; 1425 sc->my_cdata.my_tx_free = cur_tx->my_nextdesc; 1426 1427 /* Pack the data into the descriptor. */ 1428 my_encap(sc, cur_tx, m_head); 1429 1430 if (cur_tx != start_tx) 1431 MY_TXOWN(cur_tx) = MY_OWNByNIC; 1432#if NBPFILTER > 0 1433 /* 1434 * If there's a BPF listener, bounce a copy of this frame to 1435 * him. 1436 */ 1437 BPF_MTAP(ifp, cur_tx->my_mbuf); 1438#endif 1439 } 1440 /* 1441 * If there are no packets queued, bail. 1442 */ 1443 if (cur_tx == NULL) { 1444 return; 1445 } 1446 /* 1447 * Place the request for the upload interrupt in the last descriptor 1448 * in the chain. This way, if we're chaining several packets at once, 1449 * we'll only get an interrupt once for the whole chain rather than 1450 * once for each packet. 1451 */ 1452 MY_TXCTL(cur_tx) |= MY_TXIC; 1453 cur_tx->my_ptr->my_frag[0].my_ctl |= MY_TXIC; 1454 sc->my_cdata.my_tx_tail = cur_tx; 1455 if (sc->my_cdata.my_tx_head == NULL) 1456 sc->my_cdata.my_tx_head = start_tx; 1457 MY_TXOWN(start_tx) = MY_OWNByNIC; 1458 CSR_WRITE_4(sc, MY_TXPDR, 0xFFFFFFFF); /* tx polling demand */ 1459 1460 /* 1461 * Set a timeout in case the chip goes out to lunch. 1462 */ 1463 sc->my_timer = 5; 1464 return; 1465} 1466 1467static void 1468my_init(void *xsc) 1469{ 1470 struct my_softc *sc = xsc; 1471 1472 MY_LOCK(sc); 1473 my_init_locked(sc); 1474 MY_UNLOCK(sc); 1475} 1476 1477static void 1478my_init_locked(struct my_softc *sc) 1479{ 1480 struct ifnet *ifp = sc->my_ifp; 1481 u_int16_t phy_bmcr = 0; 1482 1483 MY_LOCK_ASSERT(sc); 1484 if (sc->my_autoneg) { 1485 return; 1486 } 1487 if (sc->my_pinfo != NULL) 1488 phy_bmcr = my_phy_readreg(sc, PHY_BMCR); 1489 /* 1490 * Cancel pending I/O and free all RX/TX buffers. 1491 */ 1492 my_stop(sc); 1493 my_reset(sc); 1494 1495 /* 1496 * Set cache alignment and burst length. 1497 */ 1498#if 0 /* 89/9/1 modify, */ 1499 CSR_WRITE_4(sc, MY_BCR, MY_RPBLE512); 1500 CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF); 1501#endif 1502 CSR_WRITE_4(sc, MY_BCR, MY_PBL8); 1503 CSR_WRITE_4(sc, MY_TCRRCR, MY_TFTSF | MY_RBLEN | MY_RPBLE512); 1504 /* 1505 * 89/12/29 add, for mtd891, 1506 */ 1507 if (sc->my_info->my_did == MTD891ID) { 1508 MY_SETBIT(sc, MY_BCR, MY_PROG); 1509 MY_SETBIT(sc, MY_TCRRCR, MY_Enhanced); 1510 } 1511 my_setcfg(sc, phy_bmcr); 1512 /* Init circular RX list. */ 1513 if (my_list_rx_init(sc) == ENOBUFS) { 1514 device_printf(sc->my_dev, "init failed: no memory for rx buffers\n"); 1515 my_stop(sc); 1516 return; 1517 } 1518 /* Init TX descriptors. */ 1519 my_list_tx_init(sc); 1520 1521 /* If we want promiscuous mode, set the allframes bit. */ 1522 if (ifp->if_flags & IFF_PROMISC) 1523 MY_SETBIT(sc, MY_TCRRCR, MY_PROM); 1524 else 1525 MY_CLRBIT(sc, MY_TCRRCR, MY_PROM); 1526 1527 /* 1528 * Set capture broadcast bit to capture broadcast frames. 1529 */ 1530 if (ifp->if_flags & IFF_BROADCAST) 1531 MY_SETBIT(sc, MY_TCRRCR, MY_AB); 1532 else 1533 MY_CLRBIT(sc, MY_TCRRCR, MY_AB); 1534 1535 /* 1536 * Program the multicast filter, if necessary. 1537 */ 1538 my_setmulti(sc); 1539 1540 /* 1541 * Load the address of the RX list. 1542 */ 1543 MY_CLRBIT(sc, MY_TCRRCR, MY_RE); 1544 CSR_WRITE_4(sc, MY_RXLBA, vtophys(&sc->my_ldata->my_rx_list[0])); 1545 1546 /* 1547 * Enable interrupts. 1548 */ 1549 CSR_WRITE_4(sc, MY_IMR, MY_INTRS); 1550 CSR_WRITE_4(sc, MY_ISR, 0xFFFFFFFF); 1551 1552 /* Enable receiver and transmitter. */ 1553 MY_SETBIT(sc, MY_TCRRCR, MY_RE); 1554 MY_CLRBIT(sc, MY_TCRRCR, MY_TE); 1555 CSR_WRITE_4(sc, MY_TXLBA, vtophys(&sc->my_ldata->my_tx_list[0])); 1556 MY_SETBIT(sc, MY_TCRRCR, MY_TE); 1557 1558 /* Restore state of BMCR */ 1559 if (sc->my_pinfo != NULL) 1560 my_phy_writereg(sc, PHY_BMCR, phy_bmcr); 1561 ifp->if_drv_flags |= IFF_DRV_RUNNING; 1562 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1563 1564 callout_reset(&sc->my_watchdog, hz, my_watchdog, sc); 1565 return; 1566} 1567 1568/* 1569 * Set media options. 1570 */ 1571 1572static int 1573my_ifmedia_upd(struct ifnet * ifp) 1574{ 1575 struct my_softc *sc; 1576 struct ifmedia *ifm; 1577 1578 sc = ifp->if_softc; 1579 MY_LOCK(sc); 1580 ifm = &sc->ifmedia; 1581 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) { 1582 MY_UNLOCK(sc); 1583 return (EINVAL); 1584 } 1585 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_AUTO) 1586 my_autoneg_mii(sc, MY_FLAG_SCHEDDELAY, 1); 1587 else 1588 my_setmode_mii(sc, ifm->ifm_media); 1589 MY_UNLOCK(sc); 1590 return (0); 1591} 1592 1593/* 1594 * Report current media status. 1595 */ 1596 1597static void 1598my_ifmedia_sts(struct ifnet * ifp, struct ifmediareq * ifmr) 1599{ 1600 struct my_softc *sc; 1601 u_int16_t advert = 0, ability = 0; 1602 1603 sc = ifp->if_softc; 1604 MY_LOCK(sc); 1605 ifmr->ifm_active = IFM_ETHER; 1606 if (!(my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_AUTONEGENBL)) { 1607#if 0 /* this version did not support 1000M, */ 1608 if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_1000) 1609 ifmr->ifm_active = IFM_ETHER | IFM_1000TX; 1610#endif 1611 if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_SPEEDSEL) 1612 ifmr->ifm_active = IFM_ETHER | IFM_100_TX; 1613 else 1614 ifmr->ifm_active = IFM_ETHER | IFM_10_T; 1615 if (my_phy_readreg(sc, PHY_BMCR) & PHY_BMCR_DUPLEX) 1616 ifmr->ifm_active |= IFM_FDX; 1617 else 1618 ifmr->ifm_active |= IFM_HDX; 1619 1620 MY_UNLOCK(sc); 1621 return; 1622 } 1623 ability = my_phy_readreg(sc, PHY_LPAR); 1624 advert = my_phy_readreg(sc, PHY_ANAR); 1625 1626#if 0 /* this version did not support 1000M, */ 1627 if (sc->my_pinfo->my_vid = MarvellPHYID0) { 1628 ability2 = my_phy_readreg(sc, PHY_1000SR); 1629 if (ability2 & PHY_1000SR_1000BTXFULL) { 1630 advert = 0; 1631 ability = 0; 1632 ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_FDX; 1633 } else if (ability & PHY_1000SR_1000BTXHALF) { 1634 advert = 0; 1635 ability = 0; 1636 ifmr->ifm_active = IFM_ETHER|IFM_1000_T|IFM_HDX; 1637 } 1638 } 1639#endif 1640 if (advert & PHY_ANAR_100BT4 && ability & PHY_ANAR_100BT4) 1641 ifmr->ifm_active = IFM_ETHER | IFM_100_T4; 1642 else if (advert & PHY_ANAR_100BTXFULL && ability & PHY_ANAR_100BTXFULL) 1643 ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 1644 else if (advert & PHY_ANAR_100BTXHALF && ability & PHY_ANAR_100BTXHALF) 1645 ifmr->ifm_active = IFM_ETHER | IFM_100_TX | IFM_HDX; 1646 else if (advert & PHY_ANAR_10BTFULL && ability & PHY_ANAR_10BTFULL) 1647 ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_FDX; 1648 else if (advert & PHY_ANAR_10BTHALF && ability & PHY_ANAR_10BTHALF) 1649 ifmr->ifm_active = IFM_ETHER | IFM_10_T | IFM_HDX; 1650 MY_UNLOCK(sc); 1651 return; 1652} 1653 1654static int 1655my_ioctl(struct ifnet * ifp, u_long command, caddr_t data) 1656{ 1657 struct my_softc *sc = ifp->if_softc; 1658 struct ifreq *ifr = (struct ifreq *) data; 1659 int error; 1660 1661 switch (command) { 1662 case SIOCSIFFLAGS: 1663 MY_LOCK(sc); 1664 if (ifp->if_flags & IFF_UP) 1665 my_init_locked(sc); 1666 else if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1667 my_stop(sc); 1668 MY_UNLOCK(sc); 1669 error = 0; 1670 break; 1671 case SIOCADDMULTI: 1672 case SIOCDELMULTI: 1673 MY_LOCK(sc); 1674 my_setmulti(sc); 1675 MY_UNLOCK(sc); 1676 error = 0; 1677 break; 1678 case SIOCGIFMEDIA: 1679 case SIOCSIFMEDIA: 1680 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 1681 break; 1682 default: 1683 error = ether_ioctl(ifp, command, data); 1684 break; 1685 } 1686 return (error); 1687} 1688 1689static void 1690my_watchdog(void *arg) 1691{ 1692 struct my_softc *sc; 1693 struct ifnet *ifp; 1694 1695 sc = arg; 1696 MY_LOCK_ASSERT(sc); 1697 callout_reset(&sc->my_watchdog, hz, my_watchdog, sc); 1698 if (sc->my_timer == 0 || --sc->my_timer > 0) 1699 return; 1700 1701 ifp = sc->my_ifp; 1702 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1703 if_printf(ifp, "watchdog timeout\n"); 1704 if (!(my_phy_readreg(sc, PHY_BMSR) & PHY_BMSR_LINKSTAT)) 1705 if_printf(ifp, "no carrier - transceiver cable problem?\n"); 1706 my_stop(sc); 1707 my_reset(sc); 1708 my_init_locked(sc); 1709 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 1710 my_start_locked(ifp); 1711} 1712 1713 1714/* 1715 * Stop the adapter and free any mbufs allocated to the RX and TX lists. 1716 */ 1717static void 1718my_stop(struct my_softc * sc) 1719{ 1720 int i; 1721 struct ifnet *ifp; 1722 1723 MY_LOCK_ASSERT(sc); 1724 ifp = sc->my_ifp; 1725 1726 callout_stop(&sc->my_autoneg_timer); 1727 callout_stop(&sc->my_watchdog); 1728 1729 MY_CLRBIT(sc, MY_TCRRCR, (MY_RE | MY_TE)); 1730 CSR_WRITE_4(sc, MY_IMR, 0x00000000); 1731 CSR_WRITE_4(sc, MY_TXLBA, 0x00000000); 1732 CSR_WRITE_4(sc, MY_RXLBA, 0x00000000); 1733 1734 /* 1735 * Free data in the RX lists. 1736 */ 1737 for (i = 0; i < MY_RX_LIST_CNT; i++) { 1738 if (sc->my_cdata.my_rx_chain[i].my_mbuf != NULL) { 1739 m_freem(sc->my_cdata.my_rx_chain[i].my_mbuf); 1740 sc->my_cdata.my_rx_chain[i].my_mbuf = NULL; 1741 } 1742 } 1743 bzero((char *)&sc->my_ldata->my_rx_list, 1744 sizeof(sc->my_ldata->my_rx_list)); 1745 /* 1746 * Free the TX list buffers. 1747 */ 1748 for (i = 0; i < MY_TX_LIST_CNT; i++) { 1749 if (sc->my_cdata.my_tx_chain[i].my_mbuf != NULL) { 1750 m_freem(sc->my_cdata.my_tx_chain[i].my_mbuf); 1751 sc->my_cdata.my_tx_chain[i].my_mbuf = NULL; 1752 } 1753 } 1754 bzero((char *)&sc->my_ldata->my_tx_list, 1755 sizeof(sc->my_ldata->my_tx_list)); 1756 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1757 return; 1758} 1759 1760/* 1761 * Stop all chip I/O so that the kernel's probe routines don't get confused 1762 * by errant DMAs when rebooting. 1763 */ 1764static int 1765my_shutdown(device_t dev) 1766{ 1767 struct my_softc *sc; 1768 1769 sc = device_get_softc(dev); 1770 MY_LOCK(sc); 1771 my_stop(sc); 1772 MY_UNLOCK(sc); 1773 return 0; 1774} 1775