if_nfe.c revision 1.24
1/* $OpenBSD: if_nfe.c,v 1.24 2006/02/11 09:15:57 damien Exp $ */ 2 3/*- 4 * Copyright (c) 2006 Damien Bergamini <damien.bergamini@free.fr> 5 * Copyright (c) 2005, 2006 Jonathan Gray <jsg@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* Driver for nvidia nForce Ethernet */ 21 22#include "bpfilter.h" 23#include "vlan.h" 24 25#include <sys/param.h> 26#include <sys/endian.h> 27#include <sys/systm.h> 28#include <sys/types.h> 29#include <sys/sockio.h> 30#include <sys/mbuf.h> 31#include <sys/malloc.h> 32#include <sys/kernel.h> 33#include <sys/device.h> 34#include <sys/socket.h> 35 36#include <machine/bus.h> 37 38#include <net/if.h> 39#include <net/if_dl.h> 40#include <net/if_media.h> 41 42#ifdef INET 43#include <netinet/in.h> 44#include <netinet/in_systm.h> 45#include <netinet/in_var.h> 46#include <netinet/ip.h> 47#include <netinet/if_ether.h> 48#endif 49 50#if NVLAN > 0 51#include <net/if_types.h> 52#include <net/if_vlan_var.h> 53#endif 54 55#if NBPFILTER > 0 56#include <net/bpf.h> 57#endif 58 59#include <dev/mii/mii.h> 60#include <dev/mii/miivar.h> 61 62#include <dev/pci/pcireg.h> 63#include <dev/pci/pcivar.h> 64#include <dev/pci/pcidevs.h> 65 66#include <dev/pci/if_nfereg.h> 67#include <dev/pci/if_nfevar.h> 68 69int nfe_match(struct device *, void *, void *); 70void nfe_attach(struct device *, struct device *, void *); 71void nfe_power(int, void *); 72void nfe_miibus_statchg(struct device *); 73int nfe_miibus_readreg(struct device *, int, int); 74void nfe_miibus_writereg(struct device *, int, int, int); 75int nfe_intr(void *); 76int nfe_ioctl(struct ifnet *, u_long, caddr_t); 77void nfe_txdesc32_sync(struct nfe_softc *, struct nfe_desc32 *, int); 78void nfe_txdesc64_sync(struct nfe_softc *, struct nfe_desc64 *, int); 79void nfe_rxdesc32_sync(struct nfe_softc *, struct nfe_desc32 *, int); 80void nfe_rxdesc64_sync(struct nfe_softc *, struct nfe_desc64 *, int); 81void nfe_rxeof(struct nfe_softc *); 82void nfe_txeof(struct nfe_softc *); 83int nfe_encap(struct nfe_softc *, struct mbuf *); 84void nfe_start(struct ifnet *); 85void nfe_watchdog(struct ifnet *); 86int nfe_init(struct ifnet *); 87void nfe_stop(struct ifnet *, int); 88int nfe_alloc_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 89void nfe_reset_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 90void nfe_free_rx_ring(struct nfe_softc *, struct nfe_rx_ring *); 91int nfe_alloc_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 92void nfe_reset_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 93void nfe_free_tx_ring(struct nfe_softc *, struct nfe_tx_ring *); 94int nfe_ifmedia_upd(struct ifnet *); 95void nfe_ifmedia_sts(struct ifnet *, struct ifmediareq *); 96void nfe_setmulti(struct nfe_softc *); 97void nfe_get_macaddr(struct nfe_softc *, uint8_t *); 98void nfe_set_macaddr(struct nfe_softc *, const uint8_t *); 99void nfe_tick(void *); 100 101struct cfattach nfe_ca = { 102 sizeof (struct nfe_softc), nfe_match, nfe_attach 103}; 104 105struct cfdriver nfe_cd = { 106 NULL, "nfe", DV_IFNET 107}; 108 109#define NFE_DEBUG 110 111#ifdef NFE_DEBUG 112int nfedebug = 1; 113#define DPRINTF(x) do { if (nfedebug) printf x; } while (0) 114#define DPRINTFN(n,x) do { if (nfedebug >= (n)) printf x; } while (0) 115#else 116#define DPRINTF(x) 117#define DPRINTFN(n,x) 118#endif 119 120const struct pci_matchid nfe_devices[] = { 121 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE_LAN }, 122 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE2_LAN }, 123 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN1 }, 124 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN2 }, 125 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN3 }, 126 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN4 }, 127 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_NFORCE3_LAN5 }, 128 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_CK804_LAN1 }, 129 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_CK804_LAN2 }, 130 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN1 }, 131 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP04_LAN2 }, 132 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP51_LAN1 }, 133 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP51_LAN2 }, 134 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN1 }, 135 { PCI_VENDOR_NVIDIA, PCI_PRODUCT_NVIDIA_MCP55_LAN2 } 136}; 137 138int 139nfe_match(struct device *dev, void *match, void *aux) 140{ 141 return pci_matchbyid((struct pci_attach_args *)aux, nfe_devices, 142 sizeof (nfe_devices) / sizeof (nfe_devices[0])); 143} 144 145void 146nfe_attach(struct device *parent, struct device *self, void *aux) 147{ 148 struct nfe_softc *sc = (struct nfe_softc *)self; 149 struct pci_attach_args *pa = aux; 150 pci_chipset_tag_t pc = pa->pa_pc; 151 pci_intr_handle_t ih; 152 const char *intrstr; 153 struct ifnet *ifp; 154 bus_size_t memsize; 155 156 if (pci_mapreg_map(pa, NFE_PCI_BA, PCI_MAPREG_TYPE_MEM, 0, 157 &sc->sc_memt, &sc->sc_memh, NULL, &memsize, 0) != 0) { 158 printf(": can't map mem space\n"); 159 return; 160 } 161 162 if (pci_intr_map(pa, &ih) != 0) { 163 printf(": couldn't map interrupt\n"); 164 return; 165 } 166 167 intrstr = pci_intr_string(pc, ih); 168 sc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, nfe_intr, sc, 169 sc->sc_dev.dv_xname); 170 if (sc->sc_ih == NULL) { 171 printf(": couldn't establish interrupt"); 172 if (intrstr != NULL) 173 printf(" at %s", intrstr); 174 printf("\n"); 175 return; 176 } 177 printf(": %s", intrstr); 178 179 sc->sc_dmat = pa->pa_dmat; 180 181 nfe_get_macaddr(sc, sc->sc_arpcom.ac_enaddr); 182 printf(", address %s\n", ether_sprintf(sc->sc_arpcom.ac_enaddr)); 183 184 sc->sc_flags = 0; 185 186 switch (PCI_PRODUCT(pa->pa_id)) { 187 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN2: 188 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN3: 189 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN4: 190 case PCI_PRODUCT_NVIDIA_NFORCE3_LAN5: 191 sc->sc_flags |= NFE_JUMBO_SUP | NFE_HW_CSUM; 192 break; 193 case PCI_PRODUCT_NVIDIA_MCP51_LAN1: 194 case PCI_PRODUCT_NVIDIA_MCP51_LAN2: 195 sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR; 196 break; 197 case PCI_PRODUCT_NVIDIA_CK804_LAN1: 198 case PCI_PRODUCT_NVIDIA_CK804_LAN2: 199 case PCI_PRODUCT_NVIDIA_MCP04_LAN1: 200 case PCI_PRODUCT_NVIDIA_MCP04_LAN2: 201 case PCI_PRODUCT_NVIDIA_MCP55_LAN1: 202 case PCI_PRODUCT_NVIDIA_MCP55_LAN2: 203 sc->sc_flags |= NFE_JUMBO_SUP | NFE_40BIT_ADDR | NFE_HW_CSUM; 204 break; 205 } 206 207 /* 208 * Allocate Tx and Rx rings. 209 */ 210 if (nfe_alloc_tx_ring(sc, &sc->txq) != 0) { 211 printf("%s: could not allocate Tx ring\n", 212 sc->sc_dev.dv_xname); 213 return; 214 } 215 216 if (nfe_alloc_rx_ring(sc, &sc->rxq) != 0) { 217 printf("%s: could not allocate Rx ring\n", 218 sc->sc_dev.dv_xname); 219 nfe_free_tx_ring(sc, &sc->txq); 220 return; 221 } 222 223 ifp = &sc->sc_arpcom.ac_if; 224 ifp->if_softc = sc; 225 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 226 ifp->if_ioctl = nfe_ioctl; 227 ifp->if_start = nfe_start; 228 ifp->if_watchdog = nfe_watchdog; 229 ifp->if_init = nfe_init; 230 ifp->if_baudrate = IF_Gbps(1); 231 IFQ_SET_MAXLEN(&ifp->if_snd, NFE_IFQ_MAXLEN); 232 IFQ_SET_READY(&ifp->if_snd); 233 strlcpy(ifp->if_xname, sc->sc_dev.dv_xname, IFNAMSIZ); 234 235#ifdef NFE_CSUM 236 if (sc->sc_flags & NFE_HW_CSUM) { 237 ifp->if_capabilities = IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | 238 IFCAP_CSUM_UDPv4; 239 } 240#endif 241 242 sc->sc_mii.mii_ifp = ifp; 243 sc->sc_mii.mii_readreg = nfe_miibus_readreg; 244 sc->sc_mii.mii_writereg = nfe_miibus_writereg; 245 sc->sc_mii.mii_statchg = nfe_miibus_statchg; 246 247 ifmedia_init(&sc->sc_mii.mii_media, 0, nfe_ifmedia_upd, 248 nfe_ifmedia_sts); 249 mii_attach(self, &sc->sc_mii, 0xffffffff, MII_PHY_ANY, 250 MII_OFFSET_ANY, 0); 251 if (LIST_FIRST(&sc->sc_mii.mii_phys) == NULL) { 252 printf("%s: no PHY found!\n", sc->sc_dev.dv_xname); 253 ifmedia_add(&sc->sc_mii.mii_media, IFM_ETHER | IFM_MANUAL, 254 0, NULL); 255 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER | IFM_MANUAL); 256 } else 257 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER | IFM_AUTO); 258 259 if_attach(ifp); 260 ether_ifattach(ifp); 261 262 timeout_set(&sc->sc_tick_ch, nfe_tick, sc); 263 264 sc->sc_powerhook = powerhook_establish(nfe_power, sc); 265} 266 267void 268nfe_power(int why, void *arg) 269{ 270 struct nfe_softc *sc = arg; 271 struct ifnet *ifp; 272 273 if (why == PWR_RESUME) { 274 ifp = &sc->sc_arpcom.ac_if; 275 if (ifp->if_flags & IFF_UP) { 276 ifp->if_flags &= ~IFF_RUNNING; 277 nfe_init(ifp); 278 if (ifp->if_flags & IFF_RUNNING) 279 nfe_start(ifp); 280 } 281 } 282} 283 284void 285nfe_miibus_statchg(struct device *dev) 286{ 287 struct nfe_softc *sc = (struct nfe_softc *)dev; 288 struct mii_data *mii = &sc->sc_mii; 289 uint32_t phy, seed, misc = NFE_MISC1_MAGIC, link = NFE_MEDIA_SET; 290 291 phy = NFE_READ(sc, NFE_PHY_IFACE); 292 phy &= ~(NFE_PHY_HDX | NFE_PHY_100TX | NFE_PHY_1000T); 293 294 seed = NFE_READ(sc, NFE_RNDSEED); 295 seed &= ~NFE_SEED_MASK; 296 297 if ((mii->mii_media_active & IFM_GMASK) == IFM_HDX) { 298 phy |= NFE_PHY_HDX; /* half-duplex */ 299 misc |= NFE_MISC1_HDX; 300 } 301 302 switch (IFM_SUBTYPE(mii->mii_media_active)) { 303 case IFM_1000_T: /* full-duplex only */ 304 link |= NFE_MEDIA_1000T; 305 seed |= NFE_SEED_1000T; 306 phy |= NFE_PHY_1000T; 307 break; 308 case IFM_100_TX: 309 link |= NFE_MEDIA_100TX; 310 seed |= NFE_SEED_100TX; 311 phy |= NFE_PHY_100TX; 312 break; 313 case IFM_10_T: 314 link |= NFE_MEDIA_10T; 315 seed |= NFE_SEED_10T; 316 break; 317 } 318 319 NFE_WRITE(sc, NFE_RNDSEED, seed); /* XXX: gigabit NICs only? */ 320 321 NFE_WRITE(sc, NFE_PHY_IFACE, phy); 322 NFE_WRITE(sc, NFE_MISC1, misc); 323 NFE_WRITE(sc, NFE_LINKSPEED, link); 324} 325 326int 327nfe_miibus_readreg(struct device *dev, int phy, int reg) 328{ 329 struct nfe_softc *sc = (struct nfe_softc *)dev; 330 uint32_t val; 331 int ntries; 332 333 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 334 335 if (NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY) { 336 NFE_WRITE(sc, NFE_PHY_CTL, NFE_PHY_BUSY); 337 DELAY(100); 338 } 339 340 NFE_WRITE(sc, NFE_PHY_CTL, (phy << NFE_PHYADD_SHIFT) | reg); 341 342 for (ntries = 0; ntries < 1000; ntries++) { 343 DELAY(100); 344 if (!(NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY)) 345 break; 346 } 347 if (ntries == 1000) { 348 DPRINTFN(2, ("timeout waiting for PHY\n")); 349 return 0; 350 } 351 352 if (NFE_READ(sc, NFE_PHY_STATUS) & NFE_PHY_ERROR) { 353 DPRINTFN(2, ("could not read PHY\n")); 354 return 0; 355 } 356 357 val = NFE_READ(sc, NFE_PHY_DATA); 358 if (val != 0xffffffff && val != 0) 359 sc->phyaddr = phy; 360 361 DPRINTFN(2, ("mii read phy %d reg 0x%x ret 0x%x\n", phy, reg, val)); 362 363 return val; 364} 365 366void 367nfe_miibus_writereg(struct device *dev, int phy, int reg, int val) 368{ 369 struct nfe_softc *sc = (struct nfe_softc *)dev; 370 uint32_t ctl; 371 int ntries; 372 373 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 374 375 if (NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY) { 376 NFE_WRITE(sc, NFE_PHY_CTL, NFE_PHY_BUSY); 377 DELAY(100); 378 } 379 380 NFE_WRITE(sc, NFE_PHY_DATA, val); 381 ctl = NFE_PHY_WRITE | (phy << NFE_PHYADD_SHIFT) | reg; 382 NFE_WRITE(sc, NFE_PHY_CTL, ctl); 383 384 for (ntries = 0; ntries < 1000; ntries++) { 385 DELAY(100); 386 if (!(NFE_READ(sc, NFE_PHY_CTL) & NFE_PHY_BUSY)) 387 break; 388 } 389#ifdef NFE_DEBUG 390 if (nfedebug >= 2 && ntries == 1000) 391 printf("could not write to PHY\n"); 392#endif 393} 394 395int 396nfe_intr(void *arg) 397{ 398 struct nfe_softc *sc = arg; 399 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 400 uint32_t r; 401 402 /* disable interrupts */ 403 NFE_WRITE(sc, NFE_IRQ_MASK, 0); 404 405 r = NFE_READ(sc, NFE_IRQ_STATUS); 406 NFE_WRITE(sc, NFE_IRQ_STATUS, r); 407 408 DPRINTFN(5, ("nfe_intr: interrupt register %x\n", r)); 409 410 if (r == 0) { 411 /* re-enable interrupts */ 412 NFE_WRITE(sc, NFE_IRQ_MASK, NFE_IRQ_WANTED); 413 return 0; 414 } 415 416 if (r & NFE_IRQ_LINK) { 417 NFE_READ(sc, NFE_PHY_STATUS); 418 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 419 DPRINTF(("link state changed\n")); 420 } 421 422 if (ifp->if_flags & IFF_RUNNING) { 423 /* check Rx ring */ 424 nfe_rxeof(sc); 425 426 /* check Tx ring */ 427 nfe_txeof(sc); 428 } 429 430 /* re-enable interrupts */ 431 NFE_WRITE(sc, NFE_IRQ_MASK, NFE_IRQ_WANTED); 432 433 return 1; 434} 435 436int 437nfe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 438{ 439 struct nfe_softc *sc = ifp->if_softc; 440 struct ifreq *ifr = (struct ifreq *)data; 441 struct ifaddr *ifa = (struct ifaddr *)data; 442 int s, error = 0; 443 444 s = splnet(); 445 446 if ((error = ether_ioctl(ifp, &sc->sc_arpcom, cmd, data)) > 0) { 447 splx(s); 448 return error; 449 } 450 451 switch (cmd) { 452 case SIOCSIFADDR: 453 ifp->if_flags |= IFF_UP; 454 nfe_init(ifp); 455 switch (ifa->ifa_addr->sa_family) { 456#ifdef INET 457 case AF_INET: 458 arp_ifinit(&sc->sc_arpcom, ifa); 459 break; 460#endif 461 default: 462 break; 463 } 464 break; 465 case SIOCSIFMTU: 466 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 467 error = EINVAL; 468 else if (ifp->if_mtu != ifr->ifr_mtu) 469 ifp->if_mtu = ifr->ifr_mtu; 470 break; 471 case SIOCSIFFLAGS: 472 if (ifp->if_flags & IFF_UP) { 473 /* 474 * If only the PROMISC or ALLMULTI flag changes, then 475 * don't do a full re-init of the chip, just update 476 * the Rx filter. 477 */ 478 if ((ifp->if_flags & IFF_RUNNING) && 479 ((ifp->if_flags ^ sc->sc_if_flags) & 480 (IFF_ALLMULTI | IFF_PROMISC)) != 0) 481 nfe_setmulti(sc); 482 else 483 nfe_init(ifp); 484 } else { 485 if (ifp->if_flags & IFF_RUNNING) 486 nfe_stop(ifp, 1); 487 } 488 sc->sc_if_flags = ifp->if_flags; 489 break; 490 case SIOCADDMULTI: 491 case SIOCDELMULTI: 492 error = (cmd == SIOCADDMULTI) ? 493 ether_addmulti(ifr, &sc->sc_arpcom) : 494 ether_delmulti(ifr, &sc->sc_arpcom); 495 496 if (error == ENETRESET) { 497 if (ifp->if_flags & IFF_RUNNING) 498 nfe_setmulti(sc); 499 error = 0; 500 } 501 break; 502 case SIOCSIFMEDIA: 503 case SIOCGIFMEDIA: 504 error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd); 505 break; 506 default: 507 error = EINVAL; 508 } 509 510 splx(s); 511 512 return error; 513} 514 515void 516nfe_txdesc32_sync(struct nfe_softc *sc, struct nfe_desc32 *desc32, int ops) 517{ 518 bus_dmamap_sync(sc->sc_dmat, sc->txq.map, 519 (caddr_t)desc32 - (caddr_t)sc->txq.desc32, 520 sizeof (struct nfe_desc32), ops); 521} 522 523void 524nfe_txdesc64_sync(struct nfe_softc *sc, struct nfe_desc64 *desc64, int ops) 525{ 526 bus_dmamap_sync(sc->sc_dmat, sc->txq.map, 527 (caddr_t)desc64 - (caddr_t)sc->txq.desc64, 528 sizeof (struct nfe_desc64), ops); 529} 530 531void 532nfe_rxdesc32_sync(struct nfe_softc *sc, struct nfe_desc32 *desc32, int ops) 533{ 534 bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, 535 (caddr_t)desc32 - (caddr_t)sc->rxq.desc32, 536 sizeof (struct nfe_desc32), ops); 537} 538 539void 540nfe_rxdesc64_sync(struct nfe_softc *sc, struct nfe_desc64 *desc64, int ops) 541{ 542 bus_dmamap_sync(sc->sc_dmat, sc->rxq.map, 543 (caddr_t)desc64 - (caddr_t)sc->rxq.desc64, 544 sizeof (struct nfe_desc64), ops); 545} 546 547void 548nfe_rxeof(struct nfe_softc *sc) 549{ 550 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 551 struct nfe_desc32 *desc32; 552 struct nfe_desc64 *desc64; 553 struct nfe_rx_data *data; 554 struct mbuf *m, *mnew; 555 uint16_t flags; 556 int error, len; 557 558 for (;;) { 559 data = &sc->rxq.data[sc->rxq.cur]; 560 561 if (sc->sc_flags & NFE_40BIT_ADDR) { 562 desc64 = &sc->rxq.desc64[sc->rxq.cur]; 563 nfe_rxdesc64_sync(sc, desc64, BUS_DMASYNC_POSTREAD); 564 565 flags = letoh16(desc64->flags); 566 len = letoh16(desc64->length) & 0x3fff; 567 } else { 568 desc32 = &sc->rxq.desc32[sc->rxq.cur]; 569 nfe_rxdesc32_sync(sc, desc32, BUS_DMASYNC_POSTREAD); 570 571 flags = letoh16(desc32->flags); 572 len = letoh16(desc32->length) & 0x3fff; 573 } 574 575 if (flags & NFE_RX_READY) 576 break; 577 578 if ((sc->sc_flags & (NFE_JUMBO_SUP | NFE_40BIT_ADDR)) == 0) { 579 if (!(flags & NFE_RX_VALID_V1)) 580 goto skip; 581 582 if ((flags & NFE_RX_FIXME_V1) == NFE_RX_FIXME_V1) { 583 flags &= ~NFE_RX_ERROR; 584 len--; /* fix buffer length */ 585 } 586 } else { 587 if (!(flags & NFE_RX_VALID_V2)) 588 goto skip; 589 590 if ((flags & NFE_RX_FIXME_V2) == NFE_RX_FIXME_V2) { 591 flags &= ~NFE_RX_ERROR; 592 len--; /* fix buffer length */ 593 } 594 } 595 596 if (flags & NFE_RX_ERROR) { 597 ifp->if_ierrors++; 598 goto skip; 599 } 600 601 /* 602 * Try to allocate a new mbuf for this ring element and load 603 * it before processing the current mbuf. If the ring element 604 * cannot be loaded, drop the received packet and reuse the 605 * old mbuf. In the unlikely case that the old mbuf can't be 606 * reloaded either, explicitly panic. 607 */ 608 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 609 if (mnew == NULL) { 610 ifp->if_ierrors++; 611 goto skip; 612 } 613 614 MCLGET(mnew, M_DONTWAIT); 615 if (!(mnew->m_flags & M_EXT)) { 616 m_freem(mnew); 617 ifp->if_ierrors++; 618 goto skip; 619 } 620 621 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 622 data->map->dm_mapsize, BUS_DMASYNC_POSTREAD); 623 bus_dmamap_unload(sc->sc_dmat, data->map); 624 625 error = bus_dmamap_load(sc->sc_dmat, data->map, 626 mtod(mnew, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 627 if (error != 0) { 628 m_freem(mnew); 629 630 /* try to reload the old mbuf */ 631 error = bus_dmamap_load(sc->sc_dmat, data->map, 632 mtod(data->m, void *), MCLBYTES, NULL, 633 BUS_DMA_NOWAIT); 634 if (error != 0) { 635 /* very unlikely that it will fail... */ 636 panic("%s: could not load old rx mbuf", 637 sc->sc_dev.dv_xname); 638 } 639 ifp->if_ierrors++; 640 goto skip; 641 } 642 643 /* 644 * New mbuf successfully loaded, update Rx ring and continue 645 * processing. 646 */ 647 m = data->m; 648 data->m = mnew; 649 650 /* finalize mbuf */ 651 m->m_pkthdr.len = m->m_len = len; 652 m->m_pkthdr.rcvif = ifp; 653 654#ifdef notyet 655 if (sc->sc_flags & NFE_HW_CSUM) { 656 if (flags & NFE_RX_IP_CSUMOK) 657 m->m_pkthdr.csum_flags |= M_IPV4_CSUM_IN_OK; 658 if (flags & NFE_RX_UDP_CSUMOK) 659 m->m_pkthdr.csum_flags |= M_UDP_CSUM_IN_OK; 660 if (flags & NFE_RX_TCP_CSUMOK) 661 m->m_pkthdr.csum_flags |= M_TCP_CSUM_IN_OK; 662 } 663#elif defined(NFE_CSUM) 664 if ((sc->sc_flags & NFE_HW_CSUM) && (flags & NFE_RX_CSUMOK)) 665 m->m_pkthdr.csum_flags = M_IPV4_CSUM_IN_OK; 666#endif 667 668#if NBPFILTER > 0 669 if (ifp->if_bpf) 670 bpf_mtap(ifp->if_bpf, m); 671#endif 672 ifp->if_ipackets++; 673 ether_input_mbuf(ifp, m); 674 675skip: if (sc->sc_flags & NFE_40BIT_ADDR) { 676#if defined(__LP64__) 677 desc64->physaddr[0] = 678 htole32(data->map->dm_segs->ds_addr >> 32); 679#endif 680 desc64->physaddr[1] = 681 htole32(data->map->dm_segs->ds_addr & 0xffffffff); 682 desc64->flags = htole16(NFE_RX_READY); 683 desc64->length = htole16(MCLBYTES); 684 685 nfe_rxdesc64_sync(sc, desc64, BUS_DMASYNC_PREWRITE); 686 } else { 687 desc32->physaddr = 688 htole32(data->map->dm_segs->ds_addr); 689 desc32->flags = htole16(NFE_RX_READY); 690 desc32->length = htole16(MCLBYTES); 691 692 nfe_rxdesc32_sync(sc, desc32, BUS_DMASYNC_PREWRITE); 693 } 694 695 sc->rxq.cur = (sc->rxq.cur + 1) % NFE_RX_RING_COUNT; 696 } 697} 698 699void 700nfe_txeof(struct nfe_softc *sc) 701{ 702 struct ifnet *ifp = &sc->sc_arpcom.ac_if; 703 struct nfe_desc32 *desc32; 704 struct nfe_desc64 *desc64; 705 struct nfe_tx_data *data; 706 uint16_t flags; 707 708 while (sc->txq.next != sc->txq.cur) { 709 data = &sc->txq.data[sc->txq.next]; 710 711 if (sc->sc_flags & NFE_40BIT_ADDR) { 712 desc64 = &sc->txq.desc64[sc->txq.next]; 713 nfe_txdesc64_sync(sc, desc64, BUS_DMASYNC_POSTREAD); 714 715 flags = letoh16(desc64->flags); 716 } else { 717 desc32 = &sc->txq.desc32[sc->txq.next]; 718 nfe_txdesc32_sync(sc, desc32, BUS_DMASYNC_POSTREAD); 719 720 flags = letoh16(desc32->flags); 721 } 722 723 if (flags & NFE_TX_VALID) 724 break; 725 726 if ((sc->sc_flags & (NFE_JUMBO_SUP | NFE_40BIT_ADDR)) == 0) { 727 if (!(flags & NFE_TX_LASTFRAG_V1)) 728 goto skip; 729 730 if ((flags & NFE_TX_ERROR_V1) != 0) { 731 DPRINTF(("tx error 0x%04x\n", flags)); 732 ifp->if_oerrors++; 733 } else 734 ifp->if_opackets++; 735 } else { 736 if (!(flags & NFE_TX_LASTFRAG_V2)) 737 goto skip; 738 739 if ((flags & NFE_TX_ERROR_V2) != 0) { 740 DPRINTF(("tx error 0x%04x\n", flags)); 741 ifp->if_oerrors++; 742 } else 743 ifp->if_opackets++; 744 } 745 746 if (data->m == NULL) { /* should not get there */ 747 DPRINTF(("last fragment bit w/o associated mbuf!\n")); 748 goto skip; 749 } 750 751 /* last fragment of the mbuf chain transmitted */ 752 bus_dmamap_sync(sc->sc_dmat, data->active, 0, 753 data->active->dm_mapsize, BUS_DMASYNC_POSTWRITE); 754 bus_dmamap_unload(sc->sc_dmat, data->active); 755 m_freem(data->m); 756 data->m = NULL; 757 758skip: sc->txq.queued--; 759 sc->txq.next = (sc->txq.next + 1) % NFE_TX_RING_COUNT; 760 } 761 762 ifp->if_timer = 0; 763 ifp->if_flags &= ~IFF_OACTIVE; 764 nfe_start(ifp); 765} 766 767int 768nfe_encap(struct nfe_softc *sc, struct mbuf *m0) 769{ 770 struct nfe_desc32 *desc32; 771 struct nfe_desc64 *desc64; 772 struct nfe_tx_data *data; 773 struct mbuf *mnew; 774 bus_dmamap_t map; 775 uint16_t flags = NFE_TX_VALID; 776 int error, i; 777 778 map = sc->txq.data[sc->txq.cur].map; 779 780 error = bus_dmamap_load_mbuf(sc->sc_dmat, map, m0, BUS_DMA_NOWAIT); 781 if (error != 0 && error != EFBIG) { 782 printf("%s: could not map mbuf (error %d)\n", 783 sc->sc_dev.dv_xname, error); 784 m_freem(m0); 785 return error; 786 } 787 if (error != 0) { 788 /* too many fragments, linearize */ 789 790 MGETHDR(mnew, M_DONTWAIT, MT_DATA); 791 if (mnew == NULL) { 792 m_freem(m0); 793 return ENOMEM; 794 } 795 796 M_DUP_PKTHDR(mnew, m0); 797 if (m0->m_pkthdr.len > MHLEN) { 798 MCLGET(mnew, M_DONTWAIT); 799 if (!(mnew->m_flags & M_EXT)) { 800 m_freem(m0); 801 m_freem(mnew); 802 return ENOMEM; 803 } 804 } 805 806 m_copydata(m0, 0, m0->m_pkthdr.len, mtod(mnew, caddr_t)); 807 m_freem(m0); 808 mnew->m_len = mnew->m_pkthdr.len; 809 m0 = mnew; 810 811 error = bus_dmamap_load_mbuf(sc->sc_dmat, map, m0, 812 BUS_DMA_NOWAIT); 813 if (error != 0) { 814 printf("%s: could not map mbuf (error %d)\n", 815 sc->sc_dev.dv_xname, error); 816 m_freem(m0); 817 return error; 818 } 819 } 820 821 if (sc->txq.queued + map->dm_nsegs >= NFE_TX_RING_COUNT - 1) { 822 bus_dmamap_unload(sc->sc_dmat, map); 823 return ENOBUFS; 824 } 825 826#ifdef NFE_CSUM 827 if (m0->m_pkthdr.csum_flags & M_IPV4_CSUM_OUT) 828 flags |= NFE_TX_IP_CSUM; 829 if (m0->m_pkthdr.csum_flags & (M_TCPV4_CSUM_OUT | M_UDPV4_CSUM_OUT)) 830 flags |= NFE_TX_TCP_CSUM; 831#endif 832 833 for (i = 0; i < map->dm_nsegs; i++) { 834 data = &sc->txq.data[sc->txq.cur]; 835 836 if (sc->sc_flags & NFE_40BIT_ADDR) { 837 desc64 = &sc->txq.desc64[sc->txq.cur]; 838#if defined(__LP64__) 839 desc64->physaddr[0] = 840 htole32(map->dm_segs[i].ds_addr >> 32); 841#endif 842 desc64->physaddr[1] = 843 htole32(map->dm_segs[i].ds_addr & 0xffffffff); 844 desc64->length = htole16(map->dm_segs[i].ds_len - 1); 845 desc64->flags = htole16(flags); 846 847 nfe_txdesc64_sync(sc, desc64, BUS_DMASYNC_PREWRITE); 848 } else { 849 desc32 = &sc->txq.desc32[sc->txq.cur]; 850 851 desc32->physaddr = htole32(map->dm_segs[i].ds_addr); 852 desc32->length = htole16(map->dm_segs[i].ds_len - 1); 853 desc32->flags = htole16(flags); 854 855 nfe_txdesc32_sync(sc, desc32, BUS_DMASYNC_PREWRITE); 856 } 857 858 /* csum flags belong to the first fragment only */ 859 if (map->dm_nsegs > 1) 860 flags &= ~(NFE_TX_IP_CSUM | NFE_TX_TCP_CSUM); 861 862 sc->txq.queued++; 863 sc->txq.cur = (sc->txq.cur + 1) % NFE_TX_RING_COUNT; 864 } 865 866 /* the whole mbuf chain has been DMA mapped, fix last descriptor */ 867 if (sc->sc_flags & NFE_40BIT_ADDR) { 868 flags |= NFE_TX_LASTFRAG_V2; 869 870 desc64->flags = htole16(flags); 871 nfe_txdesc64_sync(sc, desc64, BUS_DMASYNC_PREWRITE); 872 } else { 873 if (sc->sc_flags & NFE_JUMBO_SUP) 874 flags |= NFE_TX_LASTFRAG_V2; 875 else 876 flags |= NFE_TX_LASTFRAG_V1; 877 878 desc32->flags = htole16(flags); 879 nfe_txdesc32_sync(sc, desc32, BUS_DMASYNC_PREWRITE); 880 } 881 882 data->m = m0; 883 data->active = map; 884 885 bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize, 886 BUS_DMASYNC_PREWRITE); 887 888 return 0; 889} 890 891void 892nfe_start(struct ifnet *ifp) 893{ 894 struct nfe_softc *sc = ifp->if_softc; 895 struct mbuf *m0; 896 uint32_t txctl = NFE_RXTX_KICKTX; 897 int pkts = 0; 898 899 for (;;) { 900 IFQ_POLL(&ifp->if_snd, m0); 901 if (m0 == NULL) 902 break; 903 904 if (nfe_encap(sc, m0) != 0) { 905 ifp->if_flags |= IFF_OACTIVE; 906 break; 907 } 908 909 /* packet put in h/w queue, remove from s/w queue */ 910 IFQ_DEQUEUE(&ifp->if_snd, m0); 911 pkts++; 912 913#if NBPFILTER > 0 914 if (ifp->if_bpf != NULL) 915 bpf_mtap(ifp->if_bpf, m0); 916#endif 917 } 918 if (pkts == 0) 919 return; 920 921 if (sc->sc_flags & NFE_40BIT_ADDR) 922 txctl |= NFE_RXTX_V3MAGIC; 923 else if (sc->sc_flags & NFE_JUMBO_SUP) 924 txctl |= NFE_RXTX_V2MAGIC; 925 926#ifdef NFE_CSUM 927 if (sc->sc_flags & NFE_HW_CSUM) 928 txctl |= NFE_RXTX_RXCHECK; 929#endif 930 931 /* kick Tx */ 932 NFE_WRITE(sc, NFE_RXTX_CTL, txctl); 933 934 /* 935 * Set a timeout in case the chip goes out to lunch. 936 */ 937 ifp->if_timer = 5; 938} 939 940void 941nfe_watchdog(struct ifnet *ifp) 942{ 943 struct nfe_softc *sc = ifp->if_softc; 944 945 printf("%s: watchdog timeout\n", sc->sc_dev.dv_xname); 946 947 ifp->if_flags &= ~IFF_RUNNING; 948 nfe_init(ifp); 949 950 ifp->if_oerrors++; 951} 952 953int 954nfe_init(struct ifnet *ifp) 955{ 956 struct nfe_softc *sc = ifp->if_softc; 957 uint32_t tmp, rxtxctl; 958 959 if (ifp->if_flags & IFF_RUNNING) 960 return 0; 961 962 nfe_stop(ifp, 0); 963 964 NFE_WRITE(sc, NFE_TX_UNK, 0); 965 966 rxtxctl = NFE_RXTX_BIT2; 967 if (sc->sc_flags & NFE_40BIT_ADDR) 968 rxtxctl |= NFE_RXTX_V3MAGIC; 969 else if (sc->sc_flags & NFE_JUMBO_SUP) 970 rxtxctl |= NFE_RXTX_V2MAGIC; 971#ifdef NFE_CSUM 972 if (sc->sc_flags & NFE_HW_CSUM) 973 rxtxctl |= NFE_RXTX_RXCHECK; 974#endif 975 976 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_RESET | rxtxctl); 977 DELAY(10); 978 NFE_WRITE(sc, NFE_RXTX_CTL, rxtxctl); 979 980 NFE_WRITE(sc, NFE_SETUP_R6, 0); 981 982 /* set MAC address */ 983 nfe_set_macaddr(sc, sc->sc_arpcom.ac_enaddr); 984 985 /* tell MAC where rings are in memory */ 986 NFE_WRITE(sc, NFE_RX_RING_ADDR, sc->rxq.physaddr); 987 NFE_WRITE(sc, NFE_TX_RING_ADDR, sc->txq.physaddr); 988 989 NFE_WRITE(sc, NFE_RING_SIZE, 990 (NFE_RX_RING_COUNT - 1) << 16 | 991 (NFE_TX_RING_COUNT - 1)); 992 993 /* force MAC to wakeup */ 994 tmp = NFE_READ(sc, NFE_PWR_STATE); 995 NFE_WRITE(sc, NFE_PWR_STATE, tmp | NFE_PWR_WAKEUP); 996 DELAY(10); 997 tmp = NFE_READ(sc, NFE_PWR_STATE); 998 NFE_WRITE(sc, NFE_PWR_STATE, tmp | NFE_PWR_VALID); 999 1000 NFE_WRITE(sc, NFE_SETUP_R1, NFE_R1_MAGIC); 1001 NFE_WRITE(sc, NFE_SETUP_R2, NFE_R2_MAGIC); 1002 NFE_WRITE(sc, NFE_TIMER_INT, 970); /* XXX Magic */ 1003 1004 NFE_WRITE(sc, NFE_SETUP_R4, NFE_R4_MAGIC); 1005 NFE_WRITE(sc, NFE_WOL_CTL, NFE_WOL_MAGIC); 1006 1007 rxtxctl &= ~NFE_RXTX_BIT2; 1008 NFE_WRITE(sc, NFE_RXTX_CTL, rxtxctl); 1009 DELAY(10); 1010 NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_BIT1 | rxtxctl); 1011 1012 /* configure media */ 1013 mii_mediachg(&sc->sc_mii); 1014 1015 /* set Rx filter */ 1016 nfe_setmulti(sc); 1017 1018 /* enable Rx */ 1019 NFE_WRITE(sc, NFE_RX_CTL, NFE_RX_START); 1020 1021 /* enable Tx */ 1022 NFE_WRITE(sc, NFE_TX_CTL, NFE_TX_START); 1023 1024 NFE_WRITE(sc, NFE_PHY_STATUS, 0xf); 1025 1026 /* enable interrupts */ 1027 NFE_WRITE(sc, NFE_IRQ_MASK, NFE_IRQ_WANTED); 1028 1029 timeout_add(&sc->sc_tick_ch, hz); 1030 1031 ifp->if_flags |= IFF_RUNNING; 1032 ifp->if_flags &= ~IFF_OACTIVE; 1033 1034 return 0; 1035} 1036 1037void 1038nfe_stop(struct ifnet *ifp, int disable) 1039{ 1040 struct nfe_softc *sc = ifp->if_softc; 1041 1042 timeout_del(&sc->sc_tick_ch); 1043 1044 ifp->if_timer = 0; 1045 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1046 1047 mii_down(&sc->sc_mii); 1048 1049 /* abort Tx */ 1050 NFE_WRITE(sc, NFE_TX_CTL, 0); 1051 1052 /* disable Rx */ 1053 NFE_WRITE(sc, NFE_RX_CTL, 0); 1054 1055 /* disable interrupts */ 1056 NFE_WRITE(sc, NFE_IRQ_MASK, 0); 1057 1058 /* reset Tx and Rx rings */ 1059 nfe_reset_tx_ring(sc, &sc->txq); 1060 nfe_reset_rx_ring(sc, &sc->rxq); 1061} 1062 1063int 1064nfe_alloc_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1065{ 1066 struct nfe_rx_data *data; 1067 struct nfe_desc32 *desc32; 1068 struct nfe_desc64 *desc64; 1069 void **desc; 1070 int i, nsegs, error, descsize; 1071 1072 if (sc->sc_flags & NFE_40BIT_ADDR) { 1073 desc = (void **)&ring->desc64; 1074 descsize = sizeof (struct nfe_desc64); 1075 } else { 1076 desc = (void **)&ring->desc32; 1077 descsize = sizeof (struct nfe_desc32); 1078 } 1079 1080 ring->cur = ring->next = 0; 1081 1082 error = bus_dmamap_create(sc->sc_dmat, NFE_RX_RING_COUNT * descsize, 1, 1083 NFE_RX_RING_COUNT * descsize, 0, BUS_DMA_NOWAIT, &ring->map); 1084 if (error != 0) { 1085 printf("%s: could not create desc DMA map\n", 1086 sc->sc_dev.dv_xname); 1087 goto fail; 1088 } 1089 1090 error = bus_dmamem_alloc(sc->sc_dmat, NFE_RX_RING_COUNT * descsize, 1091 PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT); 1092 if (error != 0) { 1093 printf("%s: could not allocate DMA memory\n", 1094 sc->sc_dev.dv_xname); 1095 goto fail; 1096 } 1097 1098 error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs, 1099 NFE_RX_RING_COUNT * descsize, (caddr_t *)desc, BUS_DMA_NOWAIT); 1100 if (error != 0) { 1101 printf("%s: could not map desc DMA memory\n", 1102 sc->sc_dev.dv_xname); 1103 goto fail; 1104 } 1105 1106 error = bus_dmamap_load(sc->sc_dmat, ring->map, *desc, 1107 NFE_RX_RING_COUNT * descsize, NULL, BUS_DMA_NOWAIT); 1108 if (error != 0) { 1109 printf("%s: could not load desc DMA map\n", 1110 sc->sc_dev.dv_xname); 1111 goto fail; 1112 } 1113 1114 bzero(*desc, NFE_RX_RING_COUNT * descsize); 1115 ring->physaddr = ring->map->dm_segs->ds_addr; 1116 1117 /* 1118 * Pre-allocate Rx buffers and populate Rx ring. 1119 */ 1120 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1121 data = &sc->rxq.data[i]; 1122 1123 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 1124 0, BUS_DMA_NOWAIT, &data->map); 1125 if (error != 0) { 1126 printf("%s: could not create DMA map\n", 1127 sc->sc_dev.dv_xname); 1128 goto fail; 1129 } 1130 1131 MGETHDR(data->m, M_DONTWAIT, MT_DATA); 1132 if (data->m == NULL) { 1133 printf("%s: could not allocate rx mbuf\n", 1134 sc->sc_dev.dv_xname); 1135 error = ENOMEM; 1136 goto fail; 1137 } 1138 1139 MCLGET(data->m, M_DONTWAIT); 1140 if (!(data->m->m_flags & M_EXT)) { 1141 printf("%s: could not allocate rx mbuf cluster\n", 1142 sc->sc_dev.dv_xname); 1143 error = ENOMEM; 1144 goto fail; 1145 } 1146 1147 error = bus_dmamap_load(sc->sc_dmat, data->map, 1148 mtod(data->m, void *), MCLBYTES, NULL, BUS_DMA_NOWAIT); 1149 if (error != 0) { 1150 printf("%s: could not load rx buf DMA map", 1151 sc->sc_dev.dv_xname); 1152 goto fail; 1153 } 1154 1155 if (sc->sc_flags & NFE_40BIT_ADDR) { 1156 desc64 = &sc->rxq.desc64[i]; 1157#if defined(__LP64__) 1158 desc64->physaddr[0] = 1159 htole32(data->map->dm_segs->ds_addr >> 32); 1160#endif 1161 desc64->physaddr[1] = 1162 htole32(data->map->dm_segs->ds_addr & 0xffffffff); 1163 desc64->length = htole16(MCLBYTES); 1164 desc64->flags = htole16(NFE_RX_READY); 1165 } else { 1166 desc32 = &sc->rxq.desc32[i]; 1167 desc32->physaddr = 1168 htole32(data->map->dm_segs->ds_addr); 1169 desc32->length = htole16(MCLBYTES); 1170 desc32->flags = htole16(NFE_RX_READY); 1171 } 1172 } 1173 1174 bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, 1175 BUS_DMASYNC_PREWRITE); 1176 1177 return 0; 1178 1179fail: nfe_free_rx_ring(sc, ring); 1180 return error; 1181} 1182 1183void 1184nfe_reset_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1185{ 1186 int i; 1187 1188 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1189 if (sc->sc_flags & NFE_40BIT_ADDR) { 1190 ring->desc64[i].length = htole16(MCLBYTES); 1191 ring->desc64[i].flags = htole16(NFE_RX_READY); 1192 } else { 1193 ring->desc32[i].length = htole16(MCLBYTES); 1194 ring->desc32[i].flags = htole16(NFE_RX_READY); 1195 } 1196 } 1197 1198 bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, 1199 BUS_DMASYNC_PREWRITE); 1200 1201 ring->cur = ring->next = 0; 1202} 1203 1204void 1205nfe_free_rx_ring(struct nfe_softc *sc, struct nfe_rx_ring *ring) 1206{ 1207 struct nfe_rx_data *data; 1208 void *desc; 1209 int i, descsize; 1210 1211 if (sc->sc_flags & NFE_40BIT_ADDR) { 1212 desc = ring->desc64; 1213 descsize = sizeof (struct nfe_desc64); 1214 } else { 1215 desc = ring->desc32; 1216 descsize = sizeof (struct nfe_desc32); 1217 } 1218 1219 if (desc != NULL) { 1220 bus_dmamap_sync(sc->sc_dmat, ring->map, 0, 1221 ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1222 bus_dmamap_unload(sc->sc_dmat, ring->map); 1223 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)desc, 1224 NFE_RX_RING_COUNT * descsize); 1225 bus_dmamem_free(sc->sc_dmat, &ring->seg, 1); 1226 } 1227 1228 for (i = 0; i < NFE_RX_RING_COUNT; i++) { 1229 data = &ring->data[i]; 1230 1231 if (data->m != NULL) { 1232 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1233 data->map->dm_mapsize, 1234 BUS_DMASYNC_POSTREAD); 1235 bus_dmamap_unload(sc->sc_dmat, data->map); 1236 m_freem(data->m); 1237 } 1238 1239 if (data->map != NULL) 1240 bus_dmamap_destroy(sc->sc_dmat, data->map); 1241 } 1242} 1243 1244int 1245nfe_alloc_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1246{ 1247 int i, nsegs, error; 1248 void **desc; 1249 int descsize; 1250 1251 if (sc->sc_flags & NFE_40BIT_ADDR) { 1252 desc = (void **)&ring->desc64; 1253 descsize = sizeof (struct nfe_desc64); 1254 } else { 1255 desc = (void **)&ring->desc32; 1256 descsize = sizeof (struct nfe_desc32); 1257 } 1258 1259 ring->queued = 0; 1260 ring->cur = ring->next = 0; 1261 1262 error = bus_dmamap_create(sc->sc_dmat, NFE_TX_RING_COUNT * descsize, 1, 1263 NFE_TX_RING_COUNT * descsize, 0, BUS_DMA_NOWAIT, &ring->map); 1264 1265 if (error != 0) { 1266 printf("%s: could not create desc DMA map\n", 1267 sc->sc_dev.dv_xname); 1268 goto fail; 1269 } 1270 1271 error = bus_dmamem_alloc(sc->sc_dmat, NFE_TX_RING_COUNT * descsize, 1272 PAGE_SIZE, 0, &ring->seg, 1, &nsegs, BUS_DMA_NOWAIT); 1273 if (error != 0) { 1274 printf("%s: could not allocate DMA memory\n", 1275 sc->sc_dev.dv_xname); 1276 goto fail; 1277 } 1278 1279 error = bus_dmamem_map(sc->sc_dmat, &ring->seg, nsegs, 1280 NFE_TX_RING_COUNT * descsize, (caddr_t *)desc, BUS_DMA_NOWAIT); 1281 if (error != 0) { 1282 printf("%s: could not map desc DMA memory\n", 1283 sc->sc_dev.dv_xname); 1284 goto fail; 1285 } 1286 1287 error = bus_dmamap_load(sc->sc_dmat, ring->map, *desc, 1288 NFE_TX_RING_COUNT * descsize, NULL, BUS_DMA_NOWAIT); 1289 if (error != 0) { 1290 printf("%s: could not load desc DMA map\n", 1291 sc->sc_dev.dv_xname); 1292 goto fail; 1293 } 1294 1295 bzero(*desc, NFE_TX_RING_COUNT * descsize); 1296 ring->physaddr = ring->map->dm_segs->ds_addr; 1297 1298 for (i = 0; i < NFE_TX_RING_COUNT; i++) { 1299 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1300 NFE_MAX_SCATTER, MCLBYTES, 0, BUS_DMA_NOWAIT, 1301 &ring->data[i].map); 1302 if (error != 0) { 1303 printf("%s: could not create DMA map\n", 1304 sc->sc_dev.dv_xname); 1305 goto fail; 1306 } 1307 } 1308 1309 return 0; 1310 1311fail: nfe_free_tx_ring(sc, ring); 1312 return error; 1313} 1314 1315void 1316nfe_reset_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1317{ 1318 struct nfe_tx_data *data; 1319 int i; 1320 1321 for (i = 0; i < NFE_TX_RING_COUNT; i++) { 1322 if (sc->sc_flags & NFE_40BIT_ADDR) 1323 ring->desc64[i].flags = 0; 1324 else 1325 ring->desc32[i].flags = 0; 1326 1327 data = &ring->data[i]; 1328 1329 if (data->m != NULL) { 1330 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1331 data->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1332 bus_dmamap_unload(sc->sc_dmat, data->map); 1333 m_freem(data->m); 1334 data->m = NULL; 1335 } 1336 } 1337 1338 bus_dmamap_sync(sc->sc_dmat, ring->map, 0, ring->map->dm_mapsize, 1339 BUS_DMASYNC_PREWRITE); 1340 1341 ring->queued = 0; 1342 ring->cur = ring->next = 0; 1343} 1344 1345void 1346nfe_free_tx_ring(struct nfe_softc *sc, struct nfe_tx_ring *ring) 1347{ 1348 struct nfe_tx_data *data; 1349 void *desc; 1350 int i, descsize; 1351 1352 if (sc->sc_flags & NFE_40BIT_ADDR) { 1353 desc = ring->desc64; 1354 descsize = sizeof (struct nfe_desc64); 1355 } else { 1356 desc = ring->desc32; 1357 descsize = sizeof (struct nfe_desc32); 1358 } 1359 1360 if (desc != NULL) { 1361 bus_dmamap_sync(sc->sc_dmat, ring->map, 0, 1362 ring->map->dm_mapsize, BUS_DMASYNC_POSTWRITE); 1363 bus_dmamap_unload(sc->sc_dmat, ring->map); 1364 bus_dmamem_unmap(sc->sc_dmat, (caddr_t)desc, 1365 NFE_TX_RING_COUNT * descsize); 1366 bus_dmamem_free(sc->sc_dmat, &ring->seg, 1); 1367 } 1368 1369 for (i = 0; i < NFE_TX_RING_COUNT; i++) { 1370 data = &ring->data[i]; 1371 1372 if (data->m != NULL) { 1373 bus_dmamap_sync(sc->sc_dmat, data->map, 0, 1374 data->map->dm_mapsize, 1375 BUS_DMASYNC_POSTWRITE); 1376 bus_dmamap_unload(sc->sc_dmat, data->map); 1377 m_freem(data->m); 1378 } 1379 1380 if (data->map != NULL) 1381 bus_dmamap_destroy(sc->sc_dmat, data->map); 1382 } 1383} 1384 1385int 1386nfe_ifmedia_upd(struct ifnet *ifp) 1387{ 1388 struct nfe_softc *sc = ifp->if_softc; 1389 struct mii_data *mii = &sc->sc_mii; 1390 struct mii_softc *miisc; 1391 1392 if (mii->mii_instance != 0) { 1393 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 1394 mii_phy_reset(miisc); 1395 } 1396 return mii_mediachg(mii); 1397} 1398 1399void 1400nfe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 1401{ 1402 struct nfe_softc *sc = ifp->if_softc; 1403 struct mii_data *mii = &sc->sc_mii; 1404 1405 mii_pollstat(mii); 1406 ifmr->ifm_status = mii->mii_media_status; 1407 ifmr->ifm_active = mii->mii_media_active; 1408} 1409 1410void 1411nfe_setmulti(struct nfe_softc *sc) 1412{ 1413 struct arpcom *ac = &sc->sc_arpcom; 1414 struct ifnet *ifp = &ac->ac_if; 1415 struct ether_multi *enm; 1416 struct ether_multistep step; 1417 uint8_t addr[ETHER_ADDR_LEN], mask[ETHER_ADDR_LEN]; 1418 uint32_t filter = NFE_RXFILTER_MAGIC; 1419 int i; 1420 1421 if ((ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) != 0) { 1422 bzero(addr, ETHER_ADDR_LEN); 1423 bzero(mask, ETHER_ADDR_LEN); 1424 goto done; 1425 } 1426 1427 bcopy(etherbroadcastaddr, addr, ETHER_ADDR_LEN); 1428 bcopy(etherbroadcastaddr, mask, ETHER_ADDR_LEN); 1429 1430 ETHER_FIRST_MULTI(step, ac, enm); 1431 while (enm != NULL) { 1432 if (bcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 1433 ifp->if_flags |= IFF_ALLMULTI; 1434 bzero(addr, ETHER_ADDR_LEN); 1435 bzero(mask, ETHER_ADDR_LEN); 1436 goto done; 1437 } 1438 for (i = 0; i < ETHER_ADDR_LEN; i++) { 1439 addr[i] &= enm->enm_addrlo[i]; 1440 mask[i] &= ~enm->enm_addrlo[i]; 1441 } 1442 ETHER_NEXT_MULTI(step, enm); 1443 } 1444 for (i = 0; i < ETHER_ADDR_LEN; i++) 1445 mask[i] |= addr[i]; 1446 1447done: 1448 addr[0] |= 0x01; /* make sure multicast bit is set */ 1449 1450 NFE_WRITE(sc, NFE_MULTIADDR_HI, 1451 addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0]); 1452 NFE_WRITE(sc, NFE_MULTIADDR_LO, 1453 addr[5] << 8 | addr[4]); 1454 NFE_WRITE(sc, NFE_MULTIMASK_HI, 1455 mask[3] << 24 | mask[2] << 16 | mask[1] << 8 | mask[0]); 1456 NFE_WRITE(sc, NFE_MULTIMASK_LO, 1457 mask[5] << 8 | mask[4]); 1458 1459 filter |= (ifp->if_flags & IFF_PROMISC) ? NFE_PROMISC : NFE_U2M; 1460 NFE_WRITE(sc, NFE_RXFILTER, filter); 1461} 1462 1463void 1464nfe_get_macaddr(struct nfe_softc *sc, uint8_t *addr) 1465{ 1466 uint32_t tmp; 1467 1468 tmp = NFE_READ(sc, NFE_MACADDR_LO); 1469 addr[0] = (tmp >> 8) & 0xff; 1470 addr[1] = (tmp & 0xff); 1471 1472 tmp = NFE_READ(sc, NFE_MACADDR_HI); 1473 addr[2] = (tmp >> 24) & 0xff; 1474 addr[3] = (tmp >> 16) & 0xff; 1475 addr[4] = (tmp >> 8) & 0xff; 1476 addr[5] = (tmp & 0xff); 1477} 1478 1479void 1480nfe_set_macaddr(struct nfe_softc *sc, const uint8_t *addr) 1481{ 1482 NFE_WRITE(sc, NFE_MACADDR_LO, 1483 addr[5] << 8 | addr[4]); 1484 NFE_WRITE(sc, NFE_MACADDR_HI, 1485 addr[3] << 24 | addr[2] << 16 | addr[1] << 8 | addr[0]); 1486} 1487 1488void 1489nfe_tick(void *arg) 1490{ 1491 struct nfe_softc *sc = arg; 1492 int s; 1493 1494 s = splnet(); 1495 mii_tick(&sc->sc_mii); 1496 splx(s); 1497 1498 timeout_add(&sc->sc_tick_ch, hz); 1499} 1500