1/* $NetBSD: lan9118.c,v 1.14 2010/04/05 07:19:35 joerg Exp $ */ 2/* 3 * Copyright (c) 2008 KIYOHARA Takashi 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 * 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 ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27#include <sys/cdefs.h> 28__KERNEL_RCSID(0, "$NetBSD: lan9118.c,v 1.14 2010/04/05 07:19:35 joerg Exp $"); 29 30/* 31 * The LAN9118 Family 32 * * The LAN9118 is targeted for 32-bit applications requiring high 33 * performance, and provides the highest level of performance possible for 34 * a non-PCI 10/100 Ethernet controller. 35 * 36 * * The LAN9117 is designed to provide the highest level of performance 37 * possible for 16-bit applications. It also has an external MII interface, 38 * which can be used to attach an external PHY. 39 * 40 * * The LAN9116 and LAN9115 are designed for performance-sensitive 41 * applications with less intensive performance requirements. The LAN9116 42 * is for 32-bit host processors, while the LAN9115 is for 16-bit 43 * applications, which may also require an external PHY. Both devices 44 * deliver superior levels of performance. 45 * 46 * The LAN9218 Family 47 * Also support HP Auto-MDIX. 48 */ 49 50#include <sys/param.h> 51#include <sys/callout.h> 52#include <sys/device.h> 53#include <sys/errno.h> 54#include <sys/bus.h> 55#include <sys/ioctl.h> 56#include <sys/kernel.h> 57#include <sys/proc.h> 58#include <sys/systm.h> 59 60#include <net/if.h> 61#include <net/if_ether.h> 62#include <net/if_media.h> 63 64#include <dev/mii/mii.h> 65#include <dev/mii/miivar.h> 66 67#include <net/bpf.h> 68#include <sys/rnd.h> 69 70#include <dev/ic/lan9118reg.h> 71#include <dev/ic/lan9118var.h> 72 73 74#ifdef SMSH_DEBUG 75#define DPRINTF(x) if (smsh_debug) printf x 76#define DPRINTFN(n,x) if (smsh_debug >= (n)) printf x 77int smsh_debug = SMSH_DEBUG; 78#else 79#define DPRINTF(x) 80#define DPRINTFN(n,x) 81#endif 82 83 84static void lan9118_start(struct ifnet *); 85static int lan9118_ioctl(struct ifnet *, u_long, void *); 86static int lan9118_init(struct ifnet *); 87static void lan9118_stop(struct ifnet *, int); 88static void lan9118_watchdog(struct ifnet *); 89 90static int lan9118_ifm_change(struct ifnet *); 91static void lan9118_ifm_status(struct ifnet *, struct ifmediareq *); 92 93static int lan9118_miibus_readreg(device_t, int, int); 94static void lan9118_miibus_writereg(device_t, int, int, int); 95static void lan9118_miibus_statchg(device_t); 96 97static uint16_t lan9118_mii_readreg(struct lan9118_softc *, int, int); 98static void lan9118_mii_writereg(struct lan9118_softc *, int, int, uint16_t); 99static uint32_t lan9118_mac_readreg(struct lan9118_softc *, int); 100static void lan9118_mac_writereg(struct lan9118_softc *, int, uint32_t); 101 102static void lan9118_set_filter(struct lan9118_softc *); 103static void lan9118_rxintr(struct lan9118_softc *); 104static void lan9118_txintr(struct lan9118_softc *); 105 106static void lan9118_tick(void *); 107 108/* This values refer from Linux's smc911x.c */ 109static uint32_t afc_cfg[] = { 110 /* 0 */ 0x00000000, 111 /* 1 */ 0x00000000, 112 /* 2 */ 0x008c4600 | LAN9118_AFC_CFG_BACK_DUR(10) | 113 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 114 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 115 /* 3 */ 0x00824100 | LAN9118_AFC_CFG_BACK_DUR(9) | 116 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 117 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 118 /* 4 */ 0x00783c00 | LAN9118_AFC_CFG_BACK_DUR(9) | 119 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 120 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 121 /* 5 */ 0x006e3700 | LAN9118_AFC_CFG_BACK_DUR(8) | 122 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 123 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 124 /* 6 */ 0x00643200 | LAN9118_AFC_CFG_BACK_DUR(8) | 125 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 126 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 127 /* 7 */ 0x005a2d00 | LAN9118_AFC_CFG_BACK_DUR(7) | 128 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 129 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 130 /* 8 */ 0x00502800 | LAN9118_AFC_CFG_BACK_DUR(7) | 131 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 132 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 133 /* 9 */ 0x00462300 | LAN9118_AFC_CFG_BACK_DUR(6) | 134 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 135 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 136 /* a */ 0x003c1e00 | LAN9118_AFC_CFG_BACK_DUR(6) | 137 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 138 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 139 /* b */ 0x00321900 | LAN9118_AFC_CFG_BACK_DUR(5) | 140 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 141 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 142 /* c */ 0x00241200 | LAN9118_AFC_CFG_BACK_DUR(4) | 143 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 144 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 145 /* d */ 0x00150700 | LAN9118_AFC_CFG_BACK_DUR(3) | 146 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 147 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 148 /* e */ 0x00060300 | LAN9118_AFC_CFG_BACK_DUR(2) | 149 LAN9118_AFC_CFG_FCMULT | LAN9118_AFC_CFG_FCBRD | 150 LAN9118_AFC_CFG_FCADD | LAN9118_AFC_CFG_FCANY, 151 /* f */ 0x00000000, 152}; 153 154 155int 156lan9118_attach(struct lan9118_softc *sc) 157{ 158 struct ifnet *ifp = &sc->sc_ec.ec_if; 159 uint32_t val; 160 int timo, i; 161 162 if (sc->sc_flags & LAN9118_FLAGS_SWAP) 163 /* byte swap mode */ 164 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_WORD_SWAP, 165 0xffffffff); 166 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_BYTE_TEST); 167 if (val != LAN9118_BYTE_TEST_VALUE) { 168 aprint_error(": failed to detect chip\n"); 169 return EINVAL; 170 } 171 172 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_ID_REV); 173 sc->sc_id = LAN9118_ID_REV_ID(val); 174 sc->sc_rev = LAN9118_ID_REV_REV(val); 175 176#define LAN9xxx_ID(id) \ 177 (IS_LAN9118(id) ? (id) : (IS_LAN9218(id) ? ((id) >> 4) + 0x100 : (id) & 0xfff)) 178 179 aprint_normal(": SMSC LAN9%03x Rev %d\n", 180 LAN9xxx_ID(sc->sc_id), sc->sc_rev); 181 182 if (sc->sc_flags & LAN9118_FLAGS_SWAP) 183 aprint_normal_dev(sc->sc_dev, "byte swap mode\n"); 184 185 timo = 3 * 1000 * 1000; /* XXXX 3sec */ 186 do { 187 val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 188 LAN9118_MAC_CSR_CMD); 189 if (!(val & LAN9118_MAC_CSR_CMD_BUSY)) 190 break; 191 delay(100); 192 } while (timo -= 100); 193 if (timo <= 0) 194 aprint_error_dev(sc->sc_dev, "%s: command busy\n", __func__); 195 if (!(sc->sc_flags & LAN9118_FLAGS_NO_EEPROM)) { 196 /* Read auto-loaded MAC address */ 197 val = lan9118_mac_readreg(sc, LAN9118_ADDRL); 198 sc->sc_enaddr[3] = (val >> 24) & 0xff; 199 sc->sc_enaddr[2] = (val >> 16) & 0xff; 200 sc->sc_enaddr[1] = (val >> 8) & 0xff; 201 sc->sc_enaddr[0] = val & 0xff; 202 val = lan9118_mac_readreg(sc, LAN9118_ADDRH); 203 sc->sc_enaddr[5] = (val >> 8) & 0xff; 204 sc->sc_enaddr[4] = val & 0xff; 205 } 206 aprint_normal_dev(sc->sc_dev, "MAC address %s\n", 207 ether_sprintf(sc->sc_enaddr)); 208 209 KASSERT(LAN9118_TX_FIF_SZ >= 2 && LAN9118_TX_FIF_SZ < 15); 210 sc->sc_afc_cfg = afc_cfg[LAN9118_TX_FIF_SZ]; 211 212 /* Initialize the ifnet structure. */ 213 strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 214 ifp->if_softc = sc; 215 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 216 ifp->if_start = lan9118_start; 217 ifp->if_ioctl = lan9118_ioctl; 218 ifp->if_init = lan9118_init; 219 ifp->if_stop = lan9118_stop; 220 ifp->if_watchdog = lan9118_watchdog; 221 IFQ_SET_READY(&ifp->if_snd); 222 223#if 0 /* Not support 802.1Q VLAN-sized frames yet. */ 224 sc->sc_ec.ec_capabilities |= ETHERCAP_VLAN_MTU; 225#endif 226 227 ifmedia_init(&sc->sc_mii.mii_media, 0, 228 lan9118_ifm_change, lan9118_ifm_status); 229 sc->sc_mii.mii_ifp = ifp; 230 sc->sc_mii.mii_readreg = lan9118_miibus_readreg; 231 sc->sc_mii.mii_writereg = lan9118_miibus_writereg; 232 sc->sc_mii.mii_statchg = lan9118_miibus_statchg; 233 234 /* 235 * Number of instance of Internal PHY is always 0. External PHY 236 * number that above. 237 */ 238 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 1, MII_OFFSET_ANY, 0); 239 240 if (sc->sc_id == LAN9118_ID_9115 || sc->sc_id == LAN9118_ID_9117 || 241 sc->sc_id == LAN9218_ID_9215 || sc->sc_id == LAN9218_ID_9217) { 242 if (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG) & 243 LAN9118_HW_CFG_EXT_PHY_DET) { 244 /* 245 * We always have a internal PHY at phy1. 246 * In addition, external PHY is attached. 247 */ 248 DPRINTFN(1, ("%s: detect External PHY\n", __func__)); 249 250 /* Switch MII and SMI */ 251 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 252 LAN9118_HW_CFG, 253 LAN9118_HW_CFG_MBO | 254 LAN9118_HW_CFG_PHY_CLK_SEL_CD); 255 delay(1); /* Wait 5 cycle */ 256 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 257 LAN9118_HW_CFG, 258 LAN9118_HW_CFG_MBO | 259 LAN9118_HW_CFG_PHY_CLK_SEL_EMII | 260 LAN9118_HW_CFG_SMI_SEL | 261 LAN9118_HW_CFG_EXT_PHY_EN); 262 delay(1); /* Once wait more 5 cycle */ 263 264 /* Call mii_attach, avoid at phy1. */ 265 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 266 0, MII_OFFSET_ANY, 0); 267 for (i = 2; i < MII_NPHY; i++) 268 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 269 i, MII_OFFSET_ANY, 0); 270 } 271 } 272 273 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER | IFM_AUTO); 274 275 /* Attach the interface. */ 276 if_attach(ifp); 277 ether_ifattach(ifp, sc->sc_enaddr); 278 279 callout_init(&sc->sc_tick, 0); 280 281 rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev), 282 RND_TYPE_NET, 0); 283 return 0; 284} 285 286int 287lan9118_intr(void *arg) 288{ 289 struct lan9118_softc *sc = (struct lan9118_softc *)arg; 290 struct ifnet *ifp = &sc->sc_ec.ec_if; 291 uint32_t int_sts, int_en, datum = 0; 292 int handled = 0; 293 294 for (;;) { 295 int_sts = 296 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS); 297 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS, 298 int_sts); 299 int_en = 300 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN); 301 302 DPRINTFN(3, ("%s: int_sts=0x%x, int_en=0x%x\n", 303 __func__, int_sts, int_en)); 304 305 if (!(int_sts & int_en)) 306 break; 307 datum = int_sts; 308 309#if 0 /* not yet... */ 310 if (int_sts & LAN9118_INT_PHY_INT) { /* PHY */ 311 /* Shall we need? */ 312 } 313 if (int_sts & LAN9118_INT_PME_INT) { /*Power Management Event*/ 314 /* not yet... */ 315 } 316#endif 317 if (int_sts & LAN9118_INT_RXE) { 318 ifp->if_ierrors++; 319 aprint_error_ifnet(ifp, "Receive Error\n"); 320 } 321 if (int_sts & LAN9118_INT_TSFL) /* TX Status FIFO Level */ 322 lan9118_txintr(sc); 323 if (int_sts & LAN9118_INT_RXDF_INT) { 324 ifp->if_ierrors++; 325 aprint_error_ifnet(ifp, "RX Dropped Frame Interrupt\n"); 326 } 327 if (int_sts & LAN9118_INT_RSFF) { 328 ifp->if_ierrors++; 329 aprint_error_ifnet(ifp, "RX Status FIFO Full\n"); 330 } 331 if (int_sts & LAN9118_INT_RSFL) /* RX Status FIFO Level */ 332 lan9118_rxintr(sc); 333 } 334 335 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 336 lan9118_start(ifp); 337 338 rnd_add_uint32(&sc->rnd_source, datum); 339 340 return handled; 341} 342 343 344static void 345lan9118_start(struct ifnet *ifp) 346{ 347 struct lan9118_softc *sc = ifp->if_softc; 348 struct mbuf *m0, *m; 349 unsigned tdfree, totlen, dso; 350 uint32_t txa, txb; 351 uint8_t *p; 352 int n; 353 354 DPRINTFN(3, ("%s\n", __func__)); 355 356 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 357 return; 358 359 totlen = 0; 360 for (;;) { 361 IFQ_POLL(&ifp->if_snd, m0); 362 if (m0 == NULL) 363 break; 364 365 tdfree = LAN9118_TX_FIFO_INF_TDFREE(bus_space_read_4(sc->sc_iot, 366 sc->sc_ioh, LAN9118_TX_FIFO_INF)); 367 if (tdfree < 2036) { 368 /* 369 * 2036 is the possible maximum FIFO consumption 370 * for the most fragmented frame. 371 */ 372 ifp->if_flags |= IFF_OACTIVE; 373 break; 374 } 375 376 IFQ_DEQUEUE(&ifp->if_snd, m0); 377 378 /* 379 * WE ARE NOW COMMITTED TO TRANSMITTING THE PACKET. 380 */ 381 382 /* 383 * Check mbuf chain -- "middle" buffers must be >= 4 bytes 384 * and maximum # of buffers is 86. 385 */ 386 m = m0; 387 n = 0; 388 while (m) { 389 if (m->m_len < 4 || ++n > 86) { 390 /* Copy mbuf chain. */ 391 MGETHDR(m, M_DONTWAIT, MT_DATA); 392 if (m == NULL) 393 goto discard; /* discard packet */ 394 MCLGET(m, M_DONTWAIT); 395 if ((m->m_flags & M_EXT) == 0) { 396 m_freem(m); 397 goto discard; /* discard packet */ 398 } 399 m_copydata(m0, 0, m0->m_pkthdr.len, 400 mtod(m, void *)); 401 m->m_pkthdr.len = m->m_len = m0->m_pkthdr.len; 402 m_freem(m0); 403 m0 = m; 404 break; 405 } 406 m = m->m_next; 407 } 408 409 m = m0; 410 totlen = m->m_pkthdr.len; 411 p = mtod(m, uint8_t *); 412 dso = (unsigned)p & 0x3; 413 txa = 414 LAN9118_TXC_A_BEA_4B | 415 LAN9118_TXC_A_DSO(dso) | 416 LAN9118_TXC_A_FS | 417 LAN9118_TXC_A_BS(m->m_len); 418 txb = LAN9118_TXC_B_PL(totlen); 419 while (m->m_next != NULL) { 420 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 421 LAN9118_TXDFIFOP, txa); 422 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 423 LAN9118_TXDFIFOP, txb); 424 bus_space_write_multi_4(sc->sc_iot, sc->sc_ioh, 425 LAN9118_TXDFIFOP, (uint32_t *)(p - dso), 426 (m->m_len + dso + 3) >> 2); 427 428 m = m->m_next; 429 p = mtod(m, uint8_t *); 430 dso = (unsigned)p & 0x3; 431 txa = 432 LAN9118_TXC_A_BEA_4B | 433 LAN9118_TXC_A_DSO(dso) | 434 LAN9118_TXC_A_BS(m->m_len); 435 } 436 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TXDFIFOP, 437 txa | LAN9118_TXC_A_LS); 438 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TXDFIFOP, 439 txb); 440 bus_space_write_multi_4(sc->sc_iot, sc->sc_ioh, 441 LAN9118_TXDFIFOP, (uint32_t *)(p - dso), 442 (m->m_len + dso + 3) >> 2); 443 444discard: 445 /* 446 * Pass the packet to any BPF listeners. 447 */ 448 bpf_mtap(ifp, m0); 449 450 m_freem(m0); 451 } 452 if (totlen > 0) 453 ifp->if_timer = 5; 454} 455 456static int 457lan9118_ioctl(struct ifnet *ifp, u_long command, void *data) 458{ 459 struct lan9118_softc *sc = ifp->if_softc; 460 struct ifreq *ifr = data; 461 struct mii_data *mii = &sc->sc_mii; 462 int s, error = 0; 463 464 s = splnet(); 465 466 switch (command) { 467 case SIOCSIFFLAGS: 468 DPRINTFN(2, ("%s: IFFLAGS\n", __func__)); 469 if ((error = ifioctl_common(ifp, command, data)) != 0) 470 break; 471 switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { 472 case IFF_RUNNING: 473 lan9118_stop(ifp, 0); 474 break; 475 case IFF_UP: 476 lan9118_init(ifp); 477 break; 478 case IFF_UP|IFF_RUNNING: 479 lan9118_set_filter(sc); 480 break; 481 default: 482 break; 483 } 484 error = 0; 485 break; 486 487 case SIOCGIFMEDIA: 488 case SIOCSIFMEDIA: 489 DPRINTFN(2, ("%s: MEDIA\n", __func__)); 490 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 491 break; 492 493 default: 494 DPRINTFN(2, ("%s: ETHER\n", __func__)); 495 error = ether_ioctl(ifp, command, data); 496 if (error == ENETRESET) { 497 if (ifp->if_flags & IFF_RUNNING) { 498 lan9118_set_filter(sc); 499 DPRINTFN(2, ("%s set_filter called\n", 500 __func__)); 501 } 502 error = 0; 503 } 504 break; 505 } 506 507 splx(s); 508 509 return error; 510} 511 512static int 513lan9118_init(struct ifnet *ifp) 514{ 515 struct lan9118_softc *sc = ifp->if_softc; 516 struct ifmedia *ifm = &sc->sc_mii.mii_media; 517 uint32_t reg, hw_cfg, mac_cr; 518 int timo, s; 519 520 DPRINTFN(2, ("%s\n", __func__)); 521 522 s = splnet(); 523 524 /* wait for PMT_CTRL[READY] */ 525 timo = mstohz(5000); /* XXXX 5sec */ 526 while (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL) & 527 LAN9118_PMT_CTRL_READY)) { 528 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_BYTE_TEST, 529 0xbad0c0de); 530 tsleep(&sc, PRIBIO, "lan9118_pmt_ready", 1); 531 if (--timo <= 0) { 532 splx(s); 533 return EBUSY; 534 } 535 } 536 537 /* Soft Reset */ 538 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 539 LAN9118_HW_CFG_SRST); 540 do { 541 reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG); 542 if (reg & LAN9118_HW_CFG_SRST_TO) { 543 aprint_error_dev(sc->sc_dev, 544 "soft reset timeouted out\n"); 545 splx(s); 546 return ETIMEDOUT; 547 } 548 } while (reg & LAN9118_HW_CFG_SRST); 549 550 /* Set MAC and PHY CSRs */ 551 552 if (sc->sc_flags & LAN9118_FLAGS_SWAP) 553 /* need byte swap */ 554 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_WORD_SWAP, 555 0xffffffff); 556 557 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_E2P_CMD) & 558 LAN9118_E2P_CMD_EPCB); 559 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_E2P_CMD) & 560 LAN9118_E2P_CMD_MACAL)) { 561 lan9118_mac_writereg(sc, LAN9118_ADDRL, 562 sc->sc_enaddr[0] | 563 sc->sc_enaddr[1] << 8 | 564 sc->sc_enaddr[2] << 16 | 565 sc->sc_enaddr[3] << 24); 566 lan9118_mac_writereg(sc, LAN9118_ADDRH, 567 sc->sc_enaddr[4] | sc->sc_enaddr[5] << 8); 568 } 569 570 if (ifm->ifm_media & IFM_FLOW) { 571 lan9118_mac_writereg(sc, LAN9118_FLOW, 572 LAN9118_FLOW_FCPT(1) | LAN9118_FLOW_FCEN); 573 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_AFC_CFG, 574 sc->sc_afc_cfg); 575 } 576 577 lan9118_ifm_change(ifp); 578 hw_cfg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG); 579 hw_cfg &= ~LAN9118_HW_CFG_TX_FIF_MASK; 580 hw_cfg |= LAN9118_HW_CFG_TX_FIF_SZ(LAN9118_TX_FIF_SZ); 581 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, hw_cfg); 582 583 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_GPIO_CFG, 584 LAN9118_GPIO_CFG_LEDX_EN(2) | 585 LAN9118_GPIO_CFG_LEDX_EN(1) | 586 LAN9118_GPIO_CFG_LEDX_EN(0) | 587 LAN9118_GPIO_CFG_GPIOBUFN(2) | 588 LAN9118_GPIO_CFG_GPIOBUFN(1) | 589 LAN9118_GPIO_CFG_GPIOBUFN(0)); 590 591 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_IRQ_CFG, 592 LAN9118_IRQ_CFG_IRQ_EN); 593 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS, 594 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS)); 595 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_FIFO_INT, 596 LAN9118_FIFO_INT_TXSL(0) | LAN9118_FIFO_INT_RXSL(0)); 597 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN, 598#if 0 /* not yet... */ 599 LAN9118_INT_PHY_INT | /* PHY */ 600 LAN9118_INT_PME_INT | /* Power Management Event */ 601#endif 602 LAN9118_INT_RXE | /* Receive Error */ 603 LAN9118_INT_TSFL | /* TX Status FIFO Level */ 604 LAN9118_INT_RXDF_INT| /* RX Dropped Frame Interrupt */ 605 LAN9118_INT_RSFF | /* RX Status FIFO Full */ 606 LAN9118_INT_RSFL); /* RX Status FIFO Level */ 607 608 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 609 LAN9118_RX_CFG_RXDOFF(2)); 610 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 611 LAN9118_TX_CFG_TX_ON); 612 mac_cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 613 lan9118_mac_writereg(sc, LAN9118_MAC_CR, 614 mac_cr | LAN9118_MAC_CR_TXEN | LAN9118_MAC_CR_RXEN); 615 616 lan9118_set_filter(sc); 617 618 ifp->if_flags |= IFF_RUNNING; 619 ifp->if_flags &= ~IFF_OACTIVE; 620 621 callout_reset(&sc->sc_tick, hz, lan9118_tick, sc); 622 623 splx(s); 624 625 return 0; 626} 627 628static void 629lan9118_stop(struct ifnet *ifp, int disable) 630{ 631 struct lan9118_softc *sc = ifp->if_softc; 632 uint32_t cr; 633 634 DPRINTFN(2, ("%s\n", __func__)); 635 636 /* Disable IRQ */ 637 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN, 0); 638 639 /* Stopping transmitter */ 640 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 641 LAN9118_TX_CFG_STOP_TX); 642 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG) & 643 (LAN9118_TX_CFG_TX_ON | LAN9118_TX_CFG_STOP_TX)); 644 645 /* Purge TX Status/Data FIFOs */ 646 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 647 LAN9118_TX_CFG_TXS_DUMP | LAN9118_TX_CFG_TXD_DUMP); 648 649 /* Stopping receiver, also clear TXEN */ 650 cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 651 cr &= ~(LAN9118_MAC_CR_TXEN | LAN9118_MAC_CR_RXEN); 652 lan9118_mac_writereg(sc, LAN9118_MAC_CR, cr); 653 while (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS) & 654 LAN9118_INT_RXSTOP_INT)); 655 656 /* Clear RX Status/Data FIFOs */ 657 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 658 LAN9118_RX_CFG_RX_DUMP); 659 660 callout_stop(&sc->sc_tick); 661} 662 663static void 664lan9118_watchdog(struct ifnet *ifp) 665{ 666 struct lan9118_softc *sc = ifp->if_softc; 667 668 /* 669 * Reclaim first as there is a possibility of losing Tx completion 670 * interrupts. 671 */ 672 lan9118_txintr(sc); 673 674 aprint_error_ifnet(ifp, "watchdog timeout\n"); 675 ifp->if_oerrors++; 676 677 lan9118_init(ifp); 678} 679 680 681static int 682lan9118_ifm_change(struct ifnet *ifp) 683{ 684 struct lan9118_softc *sc = ifp->if_softc; 685 struct mii_data *mii = &sc->sc_mii; 686 struct ifmedia *ifm = &mii->mii_media; 687 struct ifmedia_entry *ife = ifm->ifm_cur; 688 uint32_t pmt_ctrl; 689 690 DPRINTFN(3, ("%s: ifm inst %d\n", __func__, IFM_INST(ife->ifm_media))); 691 692 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 693 LAN9118_HW_CFG_MBO | LAN9118_HW_CFG_PHY_CLK_SEL_CD); 694 delay(1); /* Wait 5 cycle */ 695 696 if (IFM_INST(ife->ifm_media) != 0) { 697 /* Use External PHY */ 698 699 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 700 LAN9118_HW_CFG_MBO | 701 LAN9118_HW_CFG_PHY_CLK_SEL_EMII | 702 LAN9118_HW_CFG_SMI_SEL | 703 LAN9118_HW_CFG_EXT_PHY_EN); 704 delay(1); 705 return mii_mediachg(&sc->sc_mii); 706 } 707 708 /* Setup Internal PHY */ 709 710 mii->mii_media_status = IFM_AVALID; 711 mii->mii_media_active = IFM_ETHER; 712 713 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 714 LAN9118_HW_CFG_MBO | 715 LAN9118_HW_CFG_PHY_CLK_SEL_IPHY); 716 delay(1); 717 718 /* Reset PHY */ 719 pmt_ctrl = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL); 720 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL, 721 pmt_ctrl | LAN9118_PMT_CTRL_PHY_RST); 722 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL) & 723 LAN9118_PMT_CTRL_PHY_RST); 724 725 mii_mediachg(&sc->sc_mii); 726 return 0; 727} 728 729static void 730lan9118_ifm_status(struct ifnet *ifp, struct ifmediareq *ifmr) 731{ 732 struct lan9118_softc *sc = ifp->if_softc; 733 struct mii_data *mii = &sc->sc_mii; 734 735 DPRINTFN(3, ("%s\n", __func__)); 736 737 mii_pollstat(mii); 738 ifmr->ifm_active = mii->mii_media_active; 739 ifmr->ifm_status = mii->mii_media_status; 740} 741 742 743static int 744lan9118_miibus_readreg(device_t dev, int phy, int reg) 745{ 746 747 return lan9118_mii_readreg(device_private(dev), phy, reg); 748} 749static void 750lan9118_miibus_writereg(device_t dev, int phy, int reg, int val) 751{ 752 753 lan9118_mii_writereg(device_private(dev), phy, reg, val); 754} 755 756static void 757lan9118_miibus_statchg(device_t dev) 758{ 759 struct lan9118_softc *sc = device_private(dev); 760 u_int cr; 761 762 cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 763 if (IFM_OPTIONS(sc->sc_mii.mii_media_active) & IFM_FDX) { 764 cr &= ~LAN9118_MAC_CR_RCVOWN; 765 cr |= LAN9118_MAC_CR_FDPX; 766 } else { 767 cr |= LAN9118_MAC_CR_RCVOWN; 768 cr &= ~LAN9118_MAC_CR_FDPX; 769 } 770 lan9118_mac_writereg(sc, LAN9118_MAC_CR, cr); 771} 772 773 774static uint16_t 775lan9118_mii_readreg(struct lan9118_softc *sc, int phy, int reg) 776{ 777 uint32_t acc; 778 779 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 780 LAN9118_MII_ACC_MIIBZY); 781 acc = LAN9118_MII_ACC_PHYA(phy) | LAN9118_MII_ACC_MIIRINDA(reg); 782 lan9118_mac_writereg(sc, LAN9118_MII_ACC, acc); 783 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 784 LAN9118_MII_ACC_MIIBZY); 785 return lan9118_mac_readreg(sc, LAN9118_MII_DATA); 786} 787 788static void 789lan9118_mii_writereg(struct lan9118_softc *sc, int phy, int reg, uint16_t val) 790{ 791 uint32_t acc; 792 793 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 794 LAN9118_MII_ACC_MIIBZY); 795 acc = LAN9118_MII_ACC_PHYA(phy) | LAN9118_MII_ACC_MIIRINDA(reg) | 796 LAN9118_MII_ACC_MIIWNR; 797 lan9118_mac_writereg(sc, LAN9118_MII_DATA, val); 798 lan9118_mac_writereg(sc, LAN9118_MII_ACC, acc); 799 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 800 LAN9118_MII_ACC_MIIBZY); 801} 802 803static uint32_t 804lan9118_mac_readreg(struct lan9118_softc *sc, int reg) 805{ 806 uint32_t cmd; 807 int timo = 3 * 1000 * 1000; /* XXXX: 3sec */ 808 809 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_CMD, 810 LAN9118_MAC_CSR_CMD_BUSY | LAN9118_MAC_CSR_CMD_R | reg); 811 do { 812 cmd = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 813 LAN9118_MAC_CSR_CMD); 814 if (!(cmd & LAN9118_MAC_CSR_CMD_BUSY)) 815 break; 816 delay(100); 817 } while (timo -= 100); 818 if (timo <= 0) 819 aprint_error_dev(sc->sc_dev, "%s: command busy\n", __func__); 820 return bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_DATA); 821} 822 823static void 824lan9118_mac_writereg(struct lan9118_softc *sc, int reg, uint32_t val) 825{ 826 uint32_t cmd; 827 int timo = 3 * 1000 * 1000; /* XXXX: 3sec */ 828 829 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_DATA, val); 830 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_CMD, 831 LAN9118_MAC_CSR_CMD_BUSY | LAN9118_MAC_CSR_CMD_W | reg); 832 do { 833 cmd = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 834 LAN9118_MAC_CSR_CMD); 835 if (!(cmd & LAN9118_MAC_CSR_CMD_BUSY)) 836 break; 837 delay(100); 838 } while (timo -= 100); 839 if (timo <= 0) 840 aprint_error_dev(sc->sc_dev, "%s: command busy\n", __func__); 841} 842 843 844static void 845lan9118_set_filter(struct lan9118_softc *sc) 846{ 847 struct ether_multistep step; 848 struct ether_multi *enm; 849 struct ifnet *ifp = &sc->sc_ec.ec_if; 850 uint32_t mac_cr, h, hashes[2] = { 0, 0 }; 851 852 mac_cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 853 if (ifp->if_flags & IFF_PROMISC) { 854 lan9118_mac_writereg(sc, LAN9118_MAC_CR, 855 mac_cr | LAN9118_MAC_CR_PRMS); 856 return; 857 } 858 859 mac_cr &= ~(LAN9118_MAC_CR_PRMS | LAN9118_MAC_CR_MCPAS | 860 LAN9118_MAC_CR_BCAST | LAN9118_MAC_CR_HPFILT); 861 if (!(ifp->if_flags & IFF_BROADCAST)) 862 mac_cr |= LAN9118_MAC_CR_BCAST; 863 864 if (ifp->if_flags & IFF_ALLMULTI) 865 mac_cr |= LAN9118_MAC_CR_MCPAS; 866 else { 867 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 868 while (enm != NULL) { 869 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 870 ETHER_ADDR_LEN) != 0) { 871 /* 872 * We must listen to a range of multicast 873 * addresses. For now, just accept all 874 * multicasts, rather than trying to set 875 * only those filter bits needed to match 876 * the range. (At this time, the only use 877 * of address ranges is for IP multicast 878 * routing, for which the range is big enough 879 * to require all bits set.) 880 */ 881 ifp->if_flags |= IFF_ALLMULTI; 882 mac_cr |= LAN9118_MAC_CR_MCPAS; 883 break; 884 } 885 h = ether_crc32_le(enm->enm_addrlo, 886 ETHER_ADDR_LEN) >> 26; 887 hashes[h >> 5] |= 1 << (h & 0x1f); 888 889 mac_cr |= LAN9118_MAC_CR_HPFILT; 890 ETHER_NEXT_MULTI(step, enm); 891 } 892 if (mac_cr & LAN9118_MAC_CR_HPFILT) { 893 lan9118_mac_writereg(sc, LAN9118_HASHH, hashes[1]); 894 lan9118_mac_writereg(sc, LAN9118_HASHL, hashes[0]); 895 } 896 } 897 lan9118_mac_writereg(sc, LAN9118_MAC_CR, mac_cr); 898 return; 899} 900 901static void 902lan9118_rxintr(struct lan9118_softc *sc) 903{ 904 struct ifnet *ifp = &sc->sc_ec.ec_if; 905 struct mbuf *m; 906 uint32_t rx_fifo_inf, rx_status; 907 int pktlen; 908 const int pad = ETHER_HDR_LEN % sizeof(uint32_t); 909 910 DPRINTFN(3, ("%s\n", __func__)); 911 912 for (;;) { 913 rx_fifo_inf = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 914 LAN9118_RX_FIFO_INF); 915 if (LAN9118_RX_FIFO_INF_RXSUSED(rx_fifo_inf) == 0) 916 break; 917 918 rx_status = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 919 LAN9118_RXSFIFOP); 920 pktlen = LAN9118_RXS_PKTLEN(rx_status); 921 DPRINTFN(3, ("%s: rx_status=0x%x(pktlen %d)\n", 922 __func__, rx_status, pktlen)); 923 if (rx_status & (LAN9118_RXS_ES | LAN9118_RXS_LENERR | 924 LAN9118_RXS_RWTO | LAN9118_RXS_MIIERR | LAN9118_RXS_DBIT)) { 925 if (rx_status & LAN9118_RXS_LENERR) 926 aprint_error_dev(sc->sc_dev, "Length Error\n"); 927 if (rx_status & LAN9118_RXS_RUNTF) 928 aprint_error_dev(sc->sc_dev, "Runt Frame\n"); 929 if (rx_status & LAN9118_RXS_FTL) 930 aprint_error_dev(sc->sc_dev, 931 "Frame Too Long\n"); 932 if (rx_status & LAN9118_RXS_RWTO) 933 aprint_error_dev(sc->sc_dev, 934 "Receive Watchdog time-out\n"); 935 if (rx_status & LAN9118_RXS_MIIERR) 936 aprint_error_dev(sc->sc_dev, "MII Error\n"); 937 if (rx_status & LAN9118_RXS_DBIT) 938 aprint_error_dev(sc->sc_dev, "Drabbling Bit\n"); 939 if (rx_status & LAN9118_RXS_COLS) 940 aprint_error_dev(sc->sc_dev, 941 "Collision Seen\n"); 942 if (rx_status & LAN9118_RXS_CRCERR) 943 aprint_error_dev(sc->sc_dev, "CRC Error\n"); 944 945dropit: 946 ifp->if_ierrors++; 947 /* 948 * Receive Data FIFO Fast Forward 949 * When performing a fast-forward, there must be at 950 * least 4 DWORDs of data in the RX data FIFO for the 951 * packet being discarded. 952 */ 953 if (pktlen >= 4 * sizeof(uint32_t)) { 954 uint32_t rx_dp_ctl; 955 956 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 957 LAN9118_RX_DP_CTL, 958 LAN9118_RX_DP_CTL_RX_FFWD); 959 /* DP_FFWD bit is self clearing */ 960 do { 961 rx_dp_ctl = bus_space_read_4(sc->sc_iot, 962 sc->sc_ioh, LAN9118_RX_DP_CTL); 963 } while (rx_dp_ctl & LAN9118_RX_DP_CTL_RX_FFWD); 964 } else { 965 /* For less than 4 DWORDs do not use RX_FFWD. */ 966 uint32_t garbage[4]; 967 968 bus_space_read_multi_4(sc->sc_iot, sc->sc_ioh, 969 LAN9118_RXDFIFOP, garbage, 970 roundup(pktlen, 4) >> 2); 971 } 972 continue; 973 } 974 975 MGETHDR(m, M_DONTWAIT, MT_DATA); 976 if (m == NULL) 977 goto dropit; 978 if (pktlen > (MHLEN - pad)) { 979 MCLGET(m, M_DONTWAIT); 980 if ((m->m_flags & M_EXT) == 0) { 981 m_freem(m); 982 goto dropit; 983 } 984 } 985 986 /* STRICT_ALIGNMENT */ 987 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 988 LAN9118_RX_CFG_RXEA_4B | LAN9118_RX_CFG_RXDOFF(pad)); 989 bus_space_read_multi_4(sc->sc_iot, sc->sc_ioh, LAN9118_RXDFIFOP, 990 mtod(m, uint32_t *), 991 roundup(pad + pktlen, sizeof(uint32_t)) >> 2); 992 m->m_data += pad; 993 994 ifp->if_ipackets++; 995 m->m_pkthdr.rcvif = ifp; 996 m->m_pkthdr.len = m->m_len = (pktlen - ETHER_CRC_LEN); 997 998 /* 999 * Pass this up to any BPF listeners, but only 1000 * pass if up the stack if it's for us. 1001 */ 1002 bpf_mtap(ifp, m); 1003 1004 /* Pass it on. */ 1005 (*ifp->if_input)(ifp, m); 1006 } 1007} 1008 1009static void 1010lan9118_txintr(struct lan9118_softc *sc) 1011{ 1012 struct ifnet *ifp = &sc->sc_ec.ec_if; 1013 uint32_t tx_fifo_inf, tx_status; 1014 int fdx = IFM_OPTIONS(sc->sc_mii.mii_media_active) & IFM_FDX; 1015 int tdfree; 1016 1017 DPRINTFN(3, ("%s\n", __func__)); 1018 1019 for (;;) { 1020 tx_fifo_inf = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 1021 LAN9118_TX_FIFO_INF); 1022 if (LAN9118_TX_FIFO_INF_TXSUSED(tx_fifo_inf) == 0) 1023 break; 1024 1025 tx_status = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 1026 LAN9118_TXSFIFOP); 1027 DPRINTFN(3, ("%s: tx_status=0x%x\n", __func__, tx_status)); 1028 if (tx_status & LAN9118_TXS_ES) { 1029 if (tx_status & LAN9118_TXS_LOC) 1030 aprint_error_dev(sc->sc_dev, 1031 "Loss Of Carrier\n"); 1032 if ((tx_status & LAN9118_TXS_NC) && !fdx) 1033 aprint_error_dev(sc->sc_dev, "No Carrier\n"); 1034 if (tx_status & LAN9118_TXS_LCOL) 1035 aprint_error_dev(sc->sc_dev, 1036 "Late Collision\n"); 1037 if (tx_status & LAN9118_TXS_ECOL) { 1038 /* Rearch 16 collision */ 1039 ifp->if_collisions += 16; 1040 aprint_error_dev(sc->sc_dev, 1041 "Excessive Collision\n"); 1042 } 1043 if (LAN9118_TXS_COLCNT(tx_status) != 0) 1044 aprint_error_dev(sc->sc_dev, 1045 "Collision Count: %d\n", 1046 LAN9118_TXS_COLCNT(tx_status)); 1047 if (tx_status & LAN9118_TXS_ED) 1048 aprint_error_dev(sc->sc_dev, 1049 "Excessive Deferral\n"); 1050 if (tx_status & LAN9118_TXS_DEFERRED) 1051 aprint_error_dev(sc->sc_dev, "Deferred\n"); 1052 ifp->if_oerrors++; 1053 } else 1054 ifp->if_opackets++; 1055 } 1056 1057 tdfree = LAN9118_TX_FIFO_INF_TDFREE(tx_fifo_inf); 1058 if (tdfree == LAN9118_TX_DATA_FIFO_SIZE) 1059 /* FIFO empty */ 1060 ifp->if_timer = 0; 1061 if (tdfree >= 2036) 1062 /* 1063 * 2036 is the possible maximum FIFO consumption 1064 * for the most fragmented frame. 1065 */ 1066 ifp->if_flags &= ~IFF_OACTIVE; 1067} 1068 1069void 1070lan9118_tick(void *v) 1071{ 1072 struct lan9118_softc *sc = v; 1073 int s; 1074 1075 s = splnet(); 1076 mii_tick(&sc->sc_mii); 1077 callout_schedule(&sc->sc_tick, hz); 1078 splx(s); 1079} 1080