lan9118.c revision 1.25
1 /* $NetBSD: lan9118.c,v 1.25 2017/06/01 16:59:20 jmcneill 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 1.25 2017/06/01 16:59:20 jmcneill 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/rndsource.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 77 int smsh_debug = SMSH_DEBUG; 78 #else 79 #define DPRINTF(x) 80 #define DPRINTFN(n,x) 81 #endif 82 83 84 static void lan9118_start(struct ifnet *); 85 static int lan9118_ioctl(struct ifnet *, u_long, void *); 86 static int lan9118_init(struct ifnet *); 87 static void lan9118_stop(struct ifnet *, int); 88 static void lan9118_watchdog(struct ifnet *); 89 90 static int lan9118_ifm_change(struct ifnet *); 91 static void lan9118_ifm_status(struct ifnet *, struct ifmediareq *); 92 93 static int lan9118_miibus_readreg(device_t, int, int); 94 static void lan9118_miibus_writereg(device_t, int, int, int); 95 static void lan9118_miibus_statchg(struct ifnet *); 96 97 static uint16_t lan9118_mii_readreg(struct lan9118_softc *, int, int); 98 static void lan9118_mii_writereg(struct lan9118_softc *, int, int, uint16_t); 99 static uint32_t lan9118_mac_readreg(struct lan9118_softc *, int); 100 static void lan9118_mac_writereg(struct lan9118_softc *, int, uint32_t); 101 102 static void lan9118_set_filter(struct lan9118_softc *); 103 static void lan9118_rxintr(struct lan9118_softc *); 104 static void lan9118_txintr(struct lan9118_softc *); 105 106 static void lan9118_tick(void *); 107 108 /* This values refer from Linux's smc911x.c */ 109 static 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 }; 153 154 155 int 156 lan9118_attach(struct lan9118_softc *sc) 157 { 158 struct ifnet *ifp = &sc->sc_ec.ec_if; 159 uint32_t val, irq_cfg; 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 /* Set IRQ config */ 210 irq_cfg = 0; 211 if (sc->sc_flags & LAN9118_FLAGS_IRQ_ACTHI) 212 irq_cfg |= LAN9118_IRQ_CFG_IRQ_POL; 213 if (sc->sc_flags & LAN9118_FLAGS_IRQ_PP) 214 irq_cfg |= LAN9118_IRQ_CFG_IRQ_TYPE; 215 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_IRQ_CFG, irq_cfg); 216 217 KASSERT(LAN9118_TX_FIF_SZ >= 2 && LAN9118_TX_FIF_SZ < 15); 218 sc->sc_afc_cfg = afc_cfg[LAN9118_TX_FIF_SZ]; 219 220 /* Initialize the ifnet structure. */ 221 strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 222 ifp->if_softc = sc; 223 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 224 ifp->if_start = lan9118_start; 225 ifp->if_ioctl = lan9118_ioctl; 226 ifp->if_init = lan9118_init; 227 ifp->if_stop = lan9118_stop; 228 ifp->if_watchdog = lan9118_watchdog; 229 IFQ_SET_READY(&ifp->if_snd); 230 231 #if 0 /* Not support 802.1Q VLAN-sized frames yet. */ 232 sc->sc_ec.ec_capabilities |= ETHERCAP_VLAN_MTU; 233 #endif 234 235 ifmedia_init(&sc->sc_mii.mii_media, 0, 236 lan9118_ifm_change, lan9118_ifm_status); 237 sc->sc_mii.mii_ifp = ifp; 238 sc->sc_mii.mii_readreg = lan9118_miibus_readreg; 239 sc->sc_mii.mii_writereg = lan9118_miibus_writereg; 240 sc->sc_mii.mii_statchg = lan9118_miibus_statchg; 241 242 /* 243 * Number of instance of Internal PHY is always 0. External PHY 244 * number that above. 245 */ 246 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 1, MII_OFFSET_ANY, 0); 247 248 if (sc->sc_id == LAN9118_ID_9115 || sc->sc_id == LAN9118_ID_9117 || 249 sc->sc_id == LAN9218_ID_9215 || sc->sc_id == LAN9218_ID_9217) { 250 if (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG) & 251 LAN9118_HW_CFG_EXT_PHY_DET) { 252 /* 253 * We always have a internal PHY at phy1. 254 * In addition, external PHY is attached. 255 */ 256 DPRINTFN(1, ("%s: detect External PHY\n", __func__)); 257 258 /* Switch MII and SMI */ 259 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 260 LAN9118_HW_CFG, 261 LAN9118_HW_CFG_MBO | 262 LAN9118_HW_CFG_PHY_CLK_SEL_CD); 263 delay(1); /* Wait 5 cycle */ 264 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 265 LAN9118_HW_CFG, 266 LAN9118_HW_CFG_MBO | 267 LAN9118_HW_CFG_PHY_CLK_SEL_EMII | 268 LAN9118_HW_CFG_SMI_SEL | 269 LAN9118_HW_CFG_EXT_PHY_EN); 270 delay(1); /* Once wait more 5 cycle */ 271 272 /* Call mii_attach, avoid at phy1. */ 273 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 274 0, MII_OFFSET_ANY, 0); 275 for (i = 2; i < MII_NPHY; i++) 276 mii_attach(sc->sc_dev, &sc->sc_mii, 0xffffffff, 277 i, MII_OFFSET_ANY, 0); 278 } 279 } 280 281 ifmedia_set(&sc->sc_mii.mii_media, IFM_ETHER | IFM_AUTO); 282 283 /* Attach the interface. */ 284 if_attach(ifp); 285 if_deferred_start_init(ifp, NULL); 286 ether_ifattach(ifp, sc->sc_enaddr); 287 288 callout_init(&sc->sc_tick, 0); 289 290 rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev), 291 RND_TYPE_NET, RND_FLAG_DEFAULT); 292 return 0; 293 } 294 295 int 296 lan9118_intr(void *arg) 297 { 298 struct lan9118_softc *sc = (struct lan9118_softc *)arg; 299 struct ifnet *ifp = &sc->sc_ec.ec_if; 300 uint32_t int_sts, int_en, datum = 0; 301 int handled = 0; 302 303 for (;;) { 304 int_sts = 305 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS); 306 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS, 307 int_sts); 308 int_en = 309 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN); 310 311 DPRINTFN(3, ("%s: int_sts=0x%x, int_en=0x%x\n", 312 __func__, int_sts, int_en)); 313 314 if (!(int_sts & int_en)) 315 break; 316 datum = int_sts; 317 318 #if 0 /* not yet... */ 319 if (int_sts & LAN9118_INT_PHY_INT) { /* PHY */ 320 /* Shall we need? */ 321 } 322 if (int_sts & LAN9118_INT_PME_INT) { /*Power Management Event*/ 323 /* not yet... */ 324 } 325 #endif 326 if (int_sts & LAN9118_INT_RXE) { 327 ifp->if_ierrors++; 328 aprint_error_ifnet(ifp, "Receive Error\n"); 329 } 330 if (int_sts & LAN9118_INT_TSFL) /* TX Status FIFO Level */ 331 lan9118_txintr(sc); 332 if (int_sts & LAN9118_INT_RXDF_INT) { 333 ifp->if_ierrors++; 334 aprint_error_ifnet(ifp, "RX Dropped Frame Interrupt\n"); 335 } 336 if (int_sts & LAN9118_INT_RSFF) { 337 ifp->if_ierrors++; 338 aprint_error_ifnet(ifp, "RX Status FIFO Full\n"); 339 } 340 if (int_sts & LAN9118_INT_RSFL) /* RX Status FIFO Level */ 341 lan9118_rxintr(sc); 342 } 343 344 if_schedule_deferred_start(ifp); 345 346 rnd_add_uint32(&sc->rnd_source, datum); 347 348 return handled; 349 } 350 351 352 static void 353 lan9118_start(struct ifnet *ifp) 354 { 355 struct lan9118_softc *sc = ifp->if_softc; 356 struct mbuf *m0, *m; 357 unsigned tdfree, totlen, dso; 358 uint32_t txa, txb; 359 uint8_t *p; 360 int n; 361 362 DPRINTFN(3, ("%s\n", __func__)); 363 364 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 365 return; 366 367 totlen = 0; 368 for (;;) { 369 IFQ_POLL(&ifp->if_snd, m0); 370 if (m0 == NULL) 371 break; 372 373 tdfree = LAN9118_TX_FIFO_INF_TDFREE(bus_space_read_4(sc->sc_iot, 374 sc->sc_ioh, LAN9118_TX_FIFO_INF)); 375 if (tdfree < 2036) { 376 /* 377 * 2036 is the possible maximum FIFO consumption 378 * for the most fragmented frame. 379 */ 380 ifp->if_flags |= IFF_OACTIVE; 381 break; 382 } 383 384 IFQ_DEQUEUE(&ifp->if_snd, m0); 385 386 /* 387 * WE ARE NOW COMMITTED TO TRANSMITTING THE PACKET. 388 */ 389 390 /* 391 * Check mbuf chain -- "middle" buffers must be >= 4 bytes 392 * and maximum # of buffers is 86. 393 */ 394 m = m0; 395 n = 0; 396 while (m) { 397 if (m->m_len < 4 || ++n > 86) { 398 /* Copy mbuf chain. */ 399 MGETHDR(m, M_DONTWAIT, MT_DATA); 400 if (m == NULL) 401 goto discard; /* discard packet */ 402 MCLGET(m, M_DONTWAIT); 403 if ((m->m_flags & M_EXT) == 0) { 404 m_freem(m); 405 goto discard; /* discard packet */ 406 } 407 m_copydata(m0, 0, m0->m_pkthdr.len, 408 mtod(m, void *)); 409 m->m_pkthdr.len = m->m_len = m0->m_pkthdr.len; 410 m_freem(m0); 411 m0 = m; 412 break; 413 } 414 m = m->m_next; 415 } 416 417 m = m0; 418 totlen = m->m_pkthdr.len; 419 p = mtod(m, uint8_t *); 420 dso = (unsigned)p & 0x3; 421 txa = 422 LAN9118_TXC_A_BEA_4B | 423 LAN9118_TXC_A_DSO(dso) | 424 LAN9118_TXC_A_FS | 425 LAN9118_TXC_A_BS(m->m_len); 426 txb = LAN9118_TXC_B_PL(totlen); 427 while (m->m_next != NULL) { 428 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 429 LAN9118_TXDFIFOP, txa); 430 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 431 LAN9118_TXDFIFOP, txb); 432 bus_space_write_multi_4(sc->sc_iot, sc->sc_ioh, 433 LAN9118_TXDFIFOP, (uint32_t *)(p - dso), 434 (m->m_len + dso + 3) >> 2); 435 436 m = m->m_next; 437 p = mtod(m, uint8_t *); 438 dso = (unsigned)p & 0x3; 439 txa = 440 LAN9118_TXC_A_BEA_4B | 441 LAN9118_TXC_A_DSO(dso) | 442 LAN9118_TXC_A_BS(m->m_len); 443 } 444 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TXDFIFOP, 445 txa | LAN9118_TXC_A_LS); 446 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TXDFIFOP, 447 txb); 448 bus_space_write_multi_4(sc->sc_iot, sc->sc_ioh, 449 LAN9118_TXDFIFOP, (uint32_t *)(p - dso), 450 (m->m_len + dso + 3) >> 2); 451 452 discard: 453 /* 454 * Pass the packet to any BPF listeners. 455 */ 456 bpf_mtap(ifp, m0); 457 458 m_freem(m0); 459 } 460 if (totlen > 0) 461 ifp->if_timer = 5; 462 } 463 464 static int 465 lan9118_ioctl(struct ifnet *ifp, u_long command, void *data) 466 { 467 struct lan9118_softc *sc = ifp->if_softc; 468 struct ifreq *ifr = data; 469 struct mii_data *mii = &sc->sc_mii; 470 int s, error = 0; 471 472 s = splnet(); 473 474 switch (command) { 475 case SIOCSIFFLAGS: 476 DPRINTFN(2, ("%s: IFFLAGS\n", __func__)); 477 if ((error = ifioctl_common(ifp, command, data)) != 0) 478 break; 479 switch (ifp->if_flags & (IFF_UP|IFF_RUNNING)) { 480 case IFF_RUNNING: 481 lan9118_stop(ifp, 0); 482 break; 483 case IFF_UP: 484 lan9118_init(ifp); 485 break; 486 case IFF_UP|IFF_RUNNING: 487 lan9118_set_filter(sc); 488 break; 489 default: 490 break; 491 } 492 error = 0; 493 break; 494 495 case SIOCGIFMEDIA: 496 case SIOCSIFMEDIA: 497 DPRINTFN(2, ("%s: MEDIA\n", __func__)); 498 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 499 break; 500 501 default: 502 DPRINTFN(2, ("%s: ETHER\n", __func__)); 503 error = ether_ioctl(ifp, command, data); 504 if (error == ENETRESET) { 505 if (ifp->if_flags & IFF_RUNNING) { 506 lan9118_set_filter(sc); 507 DPRINTFN(2, ("%s set_filter called\n", 508 __func__)); 509 } 510 error = 0; 511 } 512 break; 513 } 514 515 splx(s); 516 517 return error; 518 } 519 520 static int 521 lan9118_init(struct ifnet *ifp) 522 { 523 struct lan9118_softc *sc = ifp->if_softc; 524 struct ifmedia *ifm = &sc->sc_mii.mii_media; 525 uint32_t reg, hw_cfg, mac_cr, irq_cfg; 526 int timo, s; 527 528 DPRINTFN(2, ("%s\n", __func__)); 529 530 s = splnet(); 531 532 /* wait for PMT_CTRL[READY] */ 533 timo = mstohz(5000); /* XXXX 5sec */ 534 while (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL) & 535 LAN9118_PMT_CTRL_READY)) { 536 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_BYTE_TEST, 537 0xbad0c0de); 538 tsleep(&sc, PRIBIO, "lan9118_pmt_ready", 1); 539 if (--timo <= 0) { 540 splx(s); 541 return EBUSY; 542 } 543 } 544 545 /* Soft Reset */ 546 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 547 LAN9118_HW_CFG_SRST); 548 do { 549 reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG); 550 if (reg & LAN9118_HW_CFG_SRST_TO) { 551 aprint_error_dev(sc->sc_dev, 552 "soft reset timeouted out\n"); 553 splx(s); 554 return ETIMEDOUT; 555 } 556 } while (reg & LAN9118_HW_CFG_SRST); 557 558 /* Set MAC and PHY CSRs */ 559 560 if (sc->sc_flags & LAN9118_FLAGS_SWAP) 561 /* need byte swap */ 562 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_WORD_SWAP, 563 0xffffffff); 564 565 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_E2P_CMD) & 566 LAN9118_E2P_CMD_EPCB); 567 if (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_E2P_CMD) & 568 LAN9118_E2P_CMD_MACAL)) { 569 lan9118_mac_writereg(sc, LAN9118_ADDRL, 570 sc->sc_enaddr[0] | 571 sc->sc_enaddr[1] << 8 | 572 sc->sc_enaddr[2] << 16 | 573 sc->sc_enaddr[3] << 24); 574 lan9118_mac_writereg(sc, LAN9118_ADDRH, 575 sc->sc_enaddr[4] | sc->sc_enaddr[5] << 8); 576 } 577 578 if (ifm->ifm_media & IFM_FLOW) { 579 lan9118_mac_writereg(sc, LAN9118_FLOW, 580 LAN9118_FLOW_FCPT(1) | LAN9118_FLOW_FCEN); 581 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_AFC_CFG, 582 sc->sc_afc_cfg); 583 } 584 585 lan9118_ifm_change(ifp); 586 hw_cfg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG); 587 hw_cfg &= ~LAN9118_HW_CFG_TX_FIF_MASK; 588 hw_cfg |= LAN9118_HW_CFG_TX_FIF_SZ(LAN9118_TX_FIF_SZ); 589 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, hw_cfg); 590 591 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_GPIO_CFG, 592 LAN9118_GPIO_CFG_LEDX_EN(2) | 593 LAN9118_GPIO_CFG_LEDX_EN(1) | 594 LAN9118_GPIO_CFG_LEDX_EN(0) | 595 LAN9118_GPIO_CFG_GPIOBUFN(2) | 596 LAN9118_GPIO_CFG_GPIOBUFN(1) | 597 LAN9118_GPIO_CFG_GPIOBUFN(0)); 598 599 irq_cfg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_IRQ_CFG); 600 irq_cfg |= LAN9118_IRQ_CFG_IRQ_EN; 601 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_IRQ_CFG, irq_cfg); 602 603 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS, 604 bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS)); 605 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_FIFO_INT, 606 LAN9118_FIFO_INT_TXSL(0) | LAN9118_FIFO_INT_RXSL(0)); 607 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN, 608 #if 0 /* not yet... */ 609 LAN9118_INT_PHY_INT | /* PHY */ 610 LAN9118_INT_PME_INT | /* Power Management Event */ 611 #endif 612 LAN9118_INT_RXE | /* Receive Error */ 613 LAN9118_INT_TSFL | /* TX Status FIFO Level */ 614 LAN9118_INT_RXDF_INT| /* RX Dropped Frame Interrupt */ 615 LAN9118_INT_RSFF | /* RX Status FIFO Full */ 616 LAN9118_INT_RSFL); /* RX Status FIFO Level */ 617 618 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 619 LAN9118_RX_CFG_RXDOFF(2)); 620 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 621 LAN9118_TX_CFG_TX_ON); 622 mac_cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 623 lan9118_mac_writereg(sc, LAN9118_MAC_CR, 624 mac_cr | LAN9118_MAC_CR_TXEN | LAN9118_MAC_CR_RXEN); 625 626 lan9118_set_filter(sc); 627 628 ifp->if_flags |= IFF_RUNNING; 629 ifp->if_flags &= ~IFF_OACTIVE; 630 631 callout_reset(&sc->sc_tick, hz, lan9118_tick, sc); 632 633 splx(s); 634 635 return 0; 636 } 637 638 static void 639 lan9118_stop(struct ifnet *ifp, int disable) 640 { 641 struct lan9118_softc *sc = ifp->if_softc; 642 uint32_t cr; 643 644 DPRINTFN(2, ("%s\n", __func__)); 645 646 /* Disable IRQ */ 647 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_EN, 0); 648 649 /* Stopping transmitter */ 650 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 651 LAN9118_TX_CFG_STOP_TX); 652 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG) & 653 (LAN9118_TX_CFG_TX_ON | LAN9118_TX_CFG_STOP_TX)); 654 655 /* Purge TX Status/Data FIFOs */ 656 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_TX_CFG, 657 LAN9118_TX_CFG_TXS_DUMP | LAN9118_TX_CFG_TXD_DUMP); 658 659 /* Stopping receiver, also clear TXEN */ 660 cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 661 cr &= ~(LAN9118_MAC_CR_TXEN | LAN9118_MAC_CR_RXEN); 662 lan9118_mac_writereg(sc, LAN9118_MAC_CR, cr); 663 while (!(bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_INT_STS) & 664 LAN9118_INT_RXSTOP_INT)); 665 666 /* Clear RX Status/Data FIFOs */ 667 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 668 LAN9118_RX_CFG_RX_DUMP); 669 670 callout_stop(&sc->sc_tick); 671 } 672 673 static void 674 lan9118_watchdog(struct ifnet *ifp) 675 { 676 struct lan9118_softc *sc = ifp->if_softc; 677 678 /* 679 * Reclaim first as there is a possibility of losing Tx completion 680 * interrupts. 681 */ 682 lan9118_txintr(sc); 683 684 aprint_error_ifnet(ifp, "watchdog timeout\n"); 685 ifp->if_oerrors++; 686 687 lan9118_init(ifp); 688 } 689 690 691 static int 692 lan9118_ifm_change(struct ifnet *ifp) 693 { 694 struct lan9118_softc *sc = ifp->if_softc; 695 struct mii_data *mii = &sc->sc_mii; 696 struct ifmedia *ifm = &mii->mii_media; 697 struct ifmedia_entry *ife = ifm->ifm_cur; 698 uint32_t pmt_ctrl; 699 700 DPRINTFN(3, ("%s: ifm inst %d\n", __func__, IFM_INST(ife->ifm_media))); 701 702 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 703 LAN9118_HW_CFG_MBO | LAN9118_HW_CFG_PHY_CLK_SEL_CD); 704 delay(1); /* Wait 5 cycle */ 705 706 if (IFM_INST(ife->ifm_media) != 0) { 707 /* Use External PHY */ 708 709 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 710 LAN9118_HW_CFG_MBO | 711 LAN9118_HW_CFG_PHY_CLK_SEL_EMII | 712 LAN9118_HW_CFG_SMI_SEL | 713 LAN9118_HW_CFG_EXT_PHY_EN); 714 delay(1); 715 return mii_mediachg(&sc->sc_mii); 716 } 717 718 /* Setup Internal PHY */ 719 720 mii->mii_media_status = IFM_AVALID; 721 mii->mii_media_active = IFM_ETHER; 722 723 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_HW_CFG, 724 LAN9118_HW_CFG_MBO | 725 LAN9118_HW_CFG_PHY_CLK_SEL_IPHY); 726 delay(1); 727 728 /* Reset PHY */ 729 pmt_ctrl = bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL); 730 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL, 731 pmt_ctrl | LAN9118_PMT_CTRL_PHY_RST); 732 while (bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_PMT_CTRL) & 733 LAN9118_PMT_CTRL_PHY_RST); 734 735 mii_mediachg(&sc->sc_mii); 736 return 0; 737 } 738 739 static void 740 lan9118_ifm_status(struct ifnet *ifp, struct ifmediareq *ifmr) 741 { 742 struct lan9118_softc *sc = ifp->if_softc; 743 struct mii_data *mii = &sc->sc_mii; 744 745 DPRINTFN(3, ("%s\n", __func__)); 746 747 mii_pollstat(mii); 748 ifmr->ifm_active = mii->mii_media_active; 749 ifmr->ifm_status = mii->mii_media_status; 750 } 751 752 753 static int 754 lan9118_miibus_readreg(device_t dev, int phy, int reg) 755 { 756 757 return lan9118_mii_readreg(device_private(dev), phy, reg); 758 } 759 static void 760 lan9118_miibus_writereg(device_t dev, int phy, int reg, int val) 761 { 762 763 lan9118_mii_writereg(device_private(dev), phy, reg, val); 764 } 765 766 static void 767 lan9118_miibus_statchg(struct ifnet *ifp) 768 { 769 struct lan9118_softc *sc = ifp->if_softc; 770 u_int cr; 771 772 cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 773 if (IFM_OPTIONS(sc->sc_mii.mii_media_active) & IFM_FDX) { 774 cr &= ~LAN9118_MAC_CR_RCVOWN; 775 cr |= LAN9118_MAC_CR_FDPX; 776 } else { 777 cr |= LAN9118_MAC_CR_RCVOWN; 778 cr &= ~LAN9118_MAC_CR_FDPX; 779 } 780 lan9118_mac_writereg(sc, LAN9118_MAC_CR, cr); 781 } 782 783 784 static uint16_t 785 lan9118_mii_readreg(struct lan9118_softc *sc, int phy, int reg) 786 { 787 uint32_t acc; 788 789 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 790 LAN9118_MII_ACC_MIIBZY); 791 acc = LAN9118_MII_ACC_PHYA(phy) | LAN9118_MII_ACC_MIIRINDA(reg); 792 lan9118_mac_writereg(sc, LAN9118_MII_ACC, acc); 793 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 794 LAN9118_MII_ACC_MIIBZY); 795 return lan9118_mac_readreg(sc, LAN9118_MII_DATA); 796 } 797 798 static void 799 lan9118_mii_writereg(struct lan9118_softc *sc, int phy, int reg, uint16_t val) 800 { 801 uint32_t acc; 802 803 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 804 LAN9118_MII_ACC_MIIBZY); 805 acc = LAN9118_MII_ACC_PHYA(phy) | LAN9118_MII_ACC_MIIRINDA(reg) | 806 LAN9118_MII_ACC_MIIWNR; 807 lan9118_mac_writereg(sc, LAN9118_MII_DATA, val); 808 lan9118_mac_writereg(sc, LAN9118_MII_ACC, acc); 809 while (lan9118_mac_readreg(sc, LAN9118_MII_ACC) & 810 LAN9118_MII_ACC_MIIBZY); 811 } 812 813 static uint32_t 814 lan9118_mac_readreg(struct lan9118_softc *sc, int reg) 815 { 816 uint32_t cmd; 817 int timo = 3 * 1000 * 1000; /* XXXX: 3sec */ 818 819 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_CMD, 820 LAN9118_MAC_CSR_CMD_BUSY | LAN9118_MAC_CSR_CMD_R | reg); 821 do { 822 cmd = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 823 LAN9118_MAC_CSR_CMD); 824 if (!(cmd & LAN9118_MAC_CSR_CMD_BUSY)) 825 break; 826 delay(100); 827 } while (timo -= 100); 828 if (timo <= 0) 829 aprint_error_dev(sc->sc_dev, "%s: command busy\n", __func__); 830 return bus_space_read_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_DATA); 831 } 832 833 static void 834 lan9118_mac_writereg(struct lan9118_softc *sc, int reg, uint32_t val) 835 { 836 uint32_t cmd; 837 int timo = 3 * 1000 * 1000; /* XXXX: 3sec */ 838 839 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_DATA, val); 840 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_MAC_CSR_CMD, 841 LAN9118_MAC_CSR_CMD_BUSY | LAN9118_MAC_CSR_CMD_W | reg); 842 do { 843 cmd = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 844 LAN9118_MAC_CSR_CMD); 845 if (!(cmd & LAN9118_MAC_CSR_CMD_BUSY)) 846 break; 847 delay(100); 848 } while (timo -= 100); 849 if (timo <= 0) 850 aprint_error_dev(sc->sc_dev, "%s: command busy\n", __func__); 851 } 852 853 854 static void 855 lan9118_set_filter(struct lan9118_softc *sc) 856 { 857 struct ether_multistep step; 858 struct ether_multi *enm; 859 struct ifnet *ifp = &sc->sc_ec.ec_if; 860 uint32_t mac_cr, h, hashes[2] = { 0, 0 }; 861 862 mac_cr = lan9118_mac_readreg(sc, LAN9118_MAC_CR); 863 if (ifp->if_flags & IFF_PROMISC) { 864 lan9118_mac_writereg(sc, LAN9118_MAC_CR, 865 mac_cr | LAN9118_MAC_CR_PRMS); 866 return; 867 } 868 869 mac_cr &= ~(LAN9118_MAC_CR_PRMS | LAN9118_MAC_CR_MCPAS | 870 LAN9118_MAC_CR_BCAST | LAN9118_MAC_CR_HPFILT); 871 if (!(ifp->if_flags & IFF_BROADCAST)) 872 mac_cr |= LAN9118_MAC_CR_BCAST; 873 874 if (ifp->if_flags & IFF_ALLMULTI) 875 mac_cr |= LAN9118_MAC_CR_MCPAS; 876 else { 877 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 878 while (enm != NULL) { 879 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 880 ETHER_ADDR_LEN) != 0) { 881 /* 882 * We must listen to a range of multicast 883 * addresses. For now, just accept all 884 * multicasts, rather than trying to set 885 * only those filter bits needed to match 886 * the range. (At this time, the only use 887 * of address ranges is for IP multicast 888 * routing, for which the range is big enough 889 * to require all bits set.) 890 */ 891 ifp->if_flags |= IFF_ALLMULTI; 892 mac_cr |= LAN9118_MAC_CR_MCPAS; 893 break; 894 } 895 h = ether_crc32_le(enm->enm_addrlo, 896 ETHER_ADDR_LEN) >> 26; 897 hashes[h >> 5] |= 1 << (h & 0x1f); 898 899 mac_cr |= LAN9118_MAC_CR_HPFILT; 900 ETHER_NEXT_MULTI(step, enm); 901 } 902 if (mac_cr & LAN9118_MAC_CR_HPFILT) { 903 lan9118_mac_writereg(sc, LAN9118_HASHH, hashes[1]); 904 lan9118_mac_writereg(sc, LAN9118_HASHL, hashes[0]); 905 } 906 } 907 lan9118_mac_writereg(sc, LAN9118_MAC_CR, mac_cr); 908 return; 909 } 910 911 static void 912 lan9118_rxintr(struct lan9118_softc *sc) 913 { 914 struct ifnet *ifp = &sc->sc_ec.ec_if; 915 struct mbuf *m; 916 uint32_t rx_fifo_inf, rx_status; 917 int pktlen; 918 const int pad = ETHER_HDR_LEN % sizeof(uint32_t); 919 920 DPRINTFN(3, ("%s\n", __func__)); 921 922 for (;;) { 923 rx_fifo_inf = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 924 LAN9118_RX_FIFO_INF); 925 if (LAN9118_RX_FIFO_INF_RXSUSED(rx_fifo_inf) == 0) 926 break; 927 928 rx_status = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 929 LAN9118_RXSFIFOP); 930 pktlen = LAN9118_RXS_PKTLEN(rx_status); 931 DPRINTFN(3, ("%s: rx_status=0x%x(pktlen %d)\n", 932 __func__, rx_status, pktlen)); 933 if (rx_status & (LAN9118_RXS_ES | LAN9118_RXS_LENERR | 934 LAN9118_RXS_RWTO | LAN9118_RXS_MIIERR | LAN9118_RXS_DBIT)) { 935 if (rx_status & LAN9118_RXS_LENERR) 936 aprint_error_dev(sc->sc_dev, "Length Error\n"); 937 if (rx_status & LAN9118_RXS_RUNTF) 938 aprint_error_dev(sc->sc_dev, "Runt Frame\n"); 939 if (rx_status & LAN9118_RXS_FTL) 940 aprint_error_dev(sc->sc_dev, 941 "Frame Too Long\n"); 942 if (rx_status & LAN9118_RXS_RWTO) 943 aprint_error_dev(sc->sc_dev, 944 "Receive Watchdog time-out\n"); 945 if (rx_status & LAN9118_RXS_MIIERR) 946 aprint_error_dev(sc->sc_dev, "MII Error\n"); 947 if (rx_status & LAN9118_RXS_DBIT) 948 aprint_error_dev(sc->sc_dev, "Drabbling Bit\n"); 949 if (rx_status & LAN9118_RXS_COLS) 950 aprint_error_dev(sc->sc_dev, 951 "Collision Seen\n"); 952 if (rx_status & LAN9118_RXS_CRCERR) 953 aprint_error_dev(sc->sc_dev, "CRC Error\n"); 954 955 dropit: 956 ifp->if_ierrors++; 957 /* 958 * Receive Data FIFO Fast Forward 959 * When performing a fast-forward, there must be at 960 * least 4 DWORDs of data in the RX data FIFO for the 961 * packet being discarded. 962 */ 963 if (pktlen >= 4 * sizeof(uint32_t)) { 964 uint32_t rx_dp_ctl; 965 966 bus_space_write_4(sc->sc_iot, sc->sc_ioh, 967 LAN9118_RX_DP_CTL, 968 LAN9118_RX_DP_CTL_RX_FFWD); 969 /* DP_FFWD bit is self clearing */ 970 do { 971 rx_dp_ctl = bus_space_read_4(sc->sc_iot, 972 sc->sc_ioh, LAN9118_RX_DP_CTL); 973 } while (rx_dp_ctl & LAN9118_RX_DP_CTL_RX_FFWD); 974 } else { 975 /* For less than 4 DWORDs do not use RX_FFWD. */ 976 uint32_t garbage[4]; 977 978 bus_space_read_multi_4(sc->sc_iot, sc->sc_ioh, 979 LAN9118_RXDFIFOP, garbage, 980 roundup(pktlen, 4) >> 2); 981 } 982 continue; 983 } 984 985 MGETHDR(m, M_DONTWAIT, MT_DATA); 986 if (m == NULL) 987 goto dropit; 988 if (pktlen > (MHLEN - pad)) { 989 MCLGET(m, M_DONTWAIT); 990 if ((m->m_flags & M_EXT) == 0) { 991 m_freem(m); 992 goto dropit; 993 } 994 } 995 996 /* STRICT_ALIGNMENT */ 997 bus_space_write_4(sc->sc_iot, sc->sc_ioh, LAN9118_RX_CFG, 998 LAN9118_RX_CFG_RXEA_4B | LAN9118_RX_CFG_RXDOFF(pad)); 999 bus_space_read_multi_4(sc->sc_iot, sc->sc_ioh, LAN9118_RXDFIFOP, 1000 mtod(m, uint32_t *), 1001 roundup(pad + pktlen, sizeof(uint32_t)) >> 2); 1002 m->m_data += pad; 1003 1004 m_set_rcvif(m, ifp); 1005 m->m_pkthdr.len = m->m_len = (pktlen - ETHER_CRC_LEN); 1006 1007 /* Pass it on. */ 1008 if_percpuq_enqueue(ifp->if_percpuq, m); 1009 } 1010 } 1011 1012 static void 1013 lan9118_txintr(struct lan9118_softc *sc) 1014 { 1015 struct ifnet *ifp = &sc->sc_ec.ec_if; 1016 uint32_t tx_fifo_inf, tx_status; 1017 int fdx = IFM_OPTIONS(sc->sc_mii.mii_media_active) & IFM_FDX; 1018 int tdfree; 1019 1020 DPRINTFN(3, ("%s\n", __func__)); 1021 1022 for (;;) { 1023 tx_fifo_inf = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 1024 LAN9118_TX_FIFO_INF); 1025 if (LAN9118_TX_FIFO_INF_TXSUSED(tx_fifo_inf) == 0) 1026 break; 1027 1028 tx_status = bus_space_read_4(sc->sc_iot, sc->sc_ioh, 1029 LAN9118_TXSFIFOP); 1030 DPRINTFN(3, ("%s: tx_status=0x%x\n", __func__, tx_status)); 1031 if (tx_status & LAN9118_TXS_ES) { 1032 if (tx_status & LAN9118_TXS_LOC) 1033 aprint_error_dev(sc->sc_dev, 1034 "Loss Of Carrier\n"); 1035 if ((tx_status & LAN9118_TXS_NC) && !fdx) 1036 aprint_error_dev(sc->sc_dev, "No Carrier\n"); 1037 if (tx_status & LAN9118_TXS_LCOL) 1038 aprint_error_dev(sc->sc_dev, 1039 "Late Collision\n"); 1040 if (tx_status & LAN9118_TXS_ECOL) { 1041 /* Rearch 16 collision */ 1042 ifp->if_collisions += 16; 1043 aprint_error_dev(sc->sc_dev, 1044 "Excessive Collision\n"); 1045 } 1046 if (LAN9118_TXS_COLCNT(tx_status) != 0) 1047 aprint_error_dev(sc->sc_dev, 1048 "Collision Count: %d\n", 1049 LAN9118_TXS_COLCNT(tx_status)); 1050 if (tx_status & LAN9118_TXS_ED) 1051 aprint_error_dev(sc->sc_dev, 1052 "Excessive Deferral\n"); 1053 if (tx_status & LAN9118_TXS_DEFERRED) 1054 aprint_error_dev(sc->sc_dev, "Deferred\n"); 1055 ifp->if_oerrors++; 1056 } else 1057 ifp->if_opackets++; 1058 } 1059 1060 tdfree = LAN9118_TX_FIFO_INF_TDFREE(tx_fifo_inf); 1061 if (tdfree == LAN9118_TX_DATA_FIFO_SIZE) 1062 /* FIFO empty */ 1063 ifp->if_timer = 0; 1064 if (tdfree >= 2036) 1065 /* 1066 * 2036 is the possible maximum FIFO consumption 1067 * for the most fragmented frame. 1068 */ 1069 ifp->if_flags &= ~IFF_OACTIVE; 1070 } 1071 1072 void 1073 lan9118_tick(void *v) 1074 { 1075 struct lan9118_softc *sc = v; 1076 int s; 1077 1078 s = splnet(); 1079 mii_tick(&sc->sc_mii); 1080 callout_schedule(&sc->sc_tick, hz); 1081 splx(s); 1082 } 1083
Indexes created Tue Sep 30 17:09:57 GMT 2025