if_smsc.c revision 1.6.2.3
1 /* $NetBSD: if_smsc.c,v 1.6.2.3 2014/05/22 11:40:36 yamt Exp $ */ 2 3 /* $OpenBSD: if_smsc.c,v 1.4 2012/09/27 12:38:11 jsg Exp $ */ 4 /* $FreeBSD: src/sys/dev/usb/net/if_smsc.c,v 1.1 2012/08/15 04:03:55 gonzo Exp $ */ 5 /*- 6 * Copyright (c) 2012 7 * Ben Gray <bgray (at) freebsd.org>. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 /* 32 * SMSC LAN9xxx devices (http://www.smsc.com/) 33 * 34 * The LAN9500 & LAN9500A devices are stand-alone USB to Ethernet chips that 35 * support USB 2.0 and 10/100 Mbps Ethernet. 36 * 37 * The LAN951x devices are an integrated USB hub and USB to Ethernet adapter. 38 * The driver only covers the Ethernet part, the standard USB hub driver 39 * supports the hub part. 40 * 41 * This driver is closely modelled on the Linux driver written and copyrighted 42 * by SMSC. 43 * 44 * H/W TCP & UDP Checksum Offloading 45 * --------------------------------- 46 * The chip supports both tx and rx offloading of UDP & TCP checksums, this 47 * feature can be dynamically enabled/disabled. 48 * 49 * RX checksuming is performed across bytes after the IPv4 header to the end of 50 * the Ethernet frame, this means if the frame is padded with non-zero values 51 * the H/W checksum will be incorrect, however the rx code compensates for this. 52 * 53 * TX checksuming is more complicated, the device requires a special header to 54 * be prefixed onto the start of the frame which indicates the start and end 55 * positions of the UDP or TCP frame. This requires the driver to manually 56 * go through the packet data and decode the headers prior to sending. 57 * On Linux they generally provide cues to the location of the csum and the 58 * area to calculate it over, on FreeBSD we seem to have to do it all ourselves, 59 * hence this is not as optimal and therefore h/w TX checksum is currently not 60 * implemented. 61 */ 62 63 #ifdef _KERNEL_OPT 64 #include "opt_inet.h" 65 #endif 66 67 #include <sys/param.h> 68 #include <sys/bus.h> 69 #include <sys/systm.h> 70 #include <sys/sockio.h> 71 #include <sys/mbuf.h> 72 #include <sys/mutex.h> 73 #include <sys/kernel.h> 74 #include <sys/proc.h> 75 #include <sys/socket.h> 76 77 #include <sys/device.h> 78 79 #include <sys/rnd.h> 80 81 #include <net/if.h> 82 #include <net/if_dl.h> 83 #include <net/if_media.h> 84 #include <net/if_ether.h> 85 86 #include <net/bpf.h> 87 88 #ifdef INET 89 #include <netinet/in.h> 90 #include <netinet/if_inarp.h> 91 #endif 92 93 #include <dev/mii/mii.h> 94 #include <dev/mii/miivar.h> 95 96 #include <dev/usb/usb.h> 97 #include <dev/usb/usbdi.h> 98 #include <dev/usb/usbdi_util.h> 99 #include <dev/usb/usbdivar.h> 100 #include <dev/usb/usbdevs.h> 101 102 #include <dev/usb/if_smscreg.h> 103 #include <dev/usb/if_smscvar.h> 104 105 #include "ioconf.h" 106 107 #ifdef USB_DEBUG 108 int smsc_debug = 0; 109 #endif 110 111 /* 112 * Various supported device vendors/products. 113 */ 114 static const struct usb_devno smsc_devs[] = { 115 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_LAN89530 }, 116 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_LAN9530 }, 117 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_LAN9730 }, 118 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500 }, 119 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500A }, 120 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500A_ALT }, 121 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500A_HAL }, 122 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500A_SAL10 }, 123 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500_ALT }, 124 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9500_SAL10 }, 125 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9505 }, 126 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9505A }, 127 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9505A_HAL }, 128 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9505A_SAL10 }, 129 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9505_SAL10 }, 130 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9512_14 }, 131 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9512_14_ALT }, 132 { USB_VENDOR_SMSC, USB_PRODUCT_SMSC_SMSC9512_14_SAL10 } 133 }; 134 135 #ifdef USB_DEBUG 136 #define smsc_dbg_printf(sc, fmt, args...) \ 137 do { \ 138 if (smsc_debug > 0) \ 139 printf("debug: " fmt, ##args); \ 140 } while(0) 141 #else 142 #define smsc_dbg_printf(sc, fmt, args...) 143 #endif 144 145 #define smsc_warn_printf(sc, fmt, args...) \ 146 printf("%s: warning: " fmt, device_xname((sc)->sc_dev), ##args) 147 148 #define smsc_err_printf(sc, fmt, args...) \ 149 printf("%s: error: " fmt, device_xname((sc)->sc_dev), ##args) 150 151 /* Function declarations */ 152 int smsc_chip_init(struct smsc_softc *); 153 void smsc_setmulti(struct smsc_softc *); 154 int smsc_setmacaddress(struct smsc_softc *, const uint8_t *); 155 156 int smsc_match(device_t, cfdata_t, void *); 157 void smsc_attach(device_t, device_t, void *); 158 int smsc_detach(device_t, int); 159 int smsc_activate(device_t, enum devact); 160 161 int smsc_init(struct ifnet *); 162 void smsc_start(struct ifnet *); 163 int smsc_ioctl(struct ifnet *, u_long, void *); 164 void smsc_stop(struct ifnet *, int); 165 166 void smsc_reset(struct smsc_softc *); 167 struct mbuf *smsc_newbuf(void); 168 169 void smsc_tick(void *); 170 void smsc_tick_task(void *); 171 void smsc_miibus_statchg(struct ifnet *); 172 int smsc_miibus_readreg(device_t, int, int); 173 void smsc_miibus_writereg(device_t, int, int, int); 174 int smsc_ifmedia_upd(struct ifnet *); 175 void smsc_ifmedia_sts(struct ifnet *, struct ifmediareq *); 176 void smsc_lock_mii(struct smsc_softc *); 177 void smsc_unlock_mii(struct smsc_softc *); 178 179 int smsc_tx_list_init(struct smsc_softc *); 180 int smsc_rx_list_init(struct smsc_softc *); 181 int smsc_encap(struct smsc_softc *, struct mbuf *, int); 182 void smsc_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 183 void smsc_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 184 185 int smsc_read_reg(struct smsc_softc *, uint32_t, uint32_t *); 186 int smsc_write_reg(struct smsc_softc *, uint32_t, uint32_t); 187 int smsc_wait_for_bits(struct smsc_softc *, uint32_t, uint32_t); 188 int smsc_sethwcsum(struct smsc_softc *); 189 190 CFATTACH_DECL_NEW(usmsc, sizeof(struct smsc_softc), smsc_match, smsc_attach, 191 smsc_detach, smsc_activate); 192 193 int 194 smsc_read_reg(struct smsc_softc *sc, uint32_t off, uint32_t *data) 195 { 196 usb_device_request_t req; 197 uint32_t buf; 198 usbd_status err; 199 200 req.bmRequestType = UT_READ_VENDOR_DEVICE; 201 req.bRequest = SMSC_UR_READ_REG; 202 USETW(req.wValue, 0); 203 USETW(req.wIndex, off); 204 USETW(req.wLength, 4); 205 206 err = usbd_do_request(sc->sc_udev, &req, &buf); 207 if (err != 0) 208 smsc_warn_printf(sc, "Failed to read register 0x%0x\n", off); 209 210 *data = le32toh(buf); 211 212 return (err); 213 } 214 215 int 216 smsc_write_reg(struct smsc_softc *sc, uint32_t off, uint32_t data) 217 { 218 usb_device_request_t req; 219 uint32_t buf; 220 usbd_status err; 221 222 buf = htole32(data); 223 224 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 225 req.bRequest = SMSC_UR_WRITE_REG; 226 USETW(req.wValue, 0); 227 USETW(req.wIndex, off); 228 USETW(req.wLength, 4); 229 230 err = usbd_do_request(sc->sc_udev, &req, &buf); 231 if (err != 0) 232 smsc_warn_printf(sc, "Failed to write register 0x%0x\n", off); 233 234 return (err); 235 } 236 237 int 238 smsc_wait_for_bits(struct smsc_softc *sc, uint32_t reg, uint32_t bits) 239 { 240 uint32_t val; 241 int err, i; 242 243 for (i = 0; i < 100; i++) { 244 if ((err = smsc_read_reg(sc, reg, &val)) != 0) 245 return (err); 246 if (!(val & bits)) 247 return (0); 248 DELAY(5); 249 } 250 251 return (1); 252 } 253 254 int 255 smsc_miibus_readreg(device_t dev, int phy, int reg) 256 { 257 struct smsc_softc *sc = device_private(dev); 258 uint32_t addr; 259 uint32_t val = 0; 260 261 smsc_lock_mii(sc); 262 if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) { 263 smsc_warn_printf(sc, "MII is busy\n"); 264 goto done; 265 } 266 267 addr = (phy << 11) | (reg << 6) | SMSC_MII_READ; 268 smsc_write_reg(sc, SMSC_MII_ADDR, addr); 269 270 if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) 271 smsc_warn_printf(sc, "MII read timeout\n"); 272 273 smsc_read_reg(sc, SMSC_MII_DATA, &val); 274 275 done: 276 smsc_unlock_mii(sc); 277 278 return (val & 0xFFFF); 279 } 280 281 void 282 smsc_miibus_writereg(device_t dev, int phy, int reg, int val) 283 { 284 struct smsc_softc *sc = device_private(dev); 285 uint32_t addr; 286 287 if (sc->sc_phyno != phy) 288 return; 289 290 smsc_lock_mii(sc); 291 if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) { 292 smsc_warn_printf(sc, "MII is busy\n"); 293 smsc_unlock_mii(sc); 294 return; 295 } 296 297 smsc_write_reg(sc, SMSC_MII_DATA, val); 298 299 addr = (phy << 11) | (reg << 6) | SMSC_MII_WRITE; 300 smsc_write_reg(sc, SMSC_MII_ADDR, addr); 301 smsc_unlock_mii(sc); 302 303 if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) 304 smsc_warn_printf(sc, "MII write timeout\n"); 305 } 306 307 void 308 smsc_miibus_statchg(struct ifnet *ifp) 309 { 310 struct smsc_softc *sc = ifp->if_softc; 311 struct mii_data *mii = &sc->sc_mii; 312 int err; 313 uint32_t flow; 314 uint32_t afc_cfg; 315 316 if (mii == NULL || ifp == NULL || 317 (ifp->if_flags & IFF_RUNNING) == 0) 318 return; 319 320 /* Use the MII status to determine link status */ 321 sc->sc_flags &= ~SMSC_FLAG_LINK; 322 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 323 (IFM_ACTIVE | IFM_AVALID)) { 324 switch (IFM_SUBTYPE(mii->mii_media_active)) { 325 case IFM_10_T: 326 case IFM_100_TX: 327 sc->sc_flags |= SMSC_FLAG_LINK; 328 break; 329 case IFM_1000_T: 330 /* Gigabit ethernet not supported by chipset */ 331 break; 332 default: 333 break; 334 } 335 } 336 337 /* Lost link, do nothing. */ 338 if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) { 339 smsc_dbg_printf(sc, "link flag not set\n"); 340 return; 341 } 342 343 err = smsc_read_reg(sc, SMSC_AFC_CFG, &afc_cfg); 344 if (err) { 345 smsc_warn_printf(sc, "failed to read initial AFC_CFG, " 346 "error %d\n", err); 347 return; 348 } 349 350 /* Enable/disable full duplex operation and TX/RX pause */ 351 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 352 smsc_dbg_printf(sc, "full duplex operation\n"); 353 sc->sc_mac_csr &= ~SMSC_MAC_CSR_RCVOWN; 354 sc->sc_mac_csr |= SMSC_MAC_CSR_FDPX; 355 356 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 357 flow = 0xffff0002; 358 else 359 flow = 0; 360 361 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 362 afc_cfg |= 0xf; 363 else 364 afc_cfg &= ~0xf; 365 366 } else { 367 smsc_dbg_printf(sc, "half duplex operation\n"); 368 sc->sc_mac_csr &= ~SMSC_MAC_CSR_FDPX; 369 sc->sc_mac_csr |= SMSC_MAC_CSR_RCVOWN; 370 371 flow = 0; 372 afc_cfg |= 0xf; 373 } 374 375 err = smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 376 err += smsc_write_reg(sc, SMSC_FLOW, flow); 377 err += smsc_write_reg(sc, SMSC_AFC_CFG, afc_cfg); 378 if (err) 379 smsc_warn_printf(sc, "media change failed, error %d\n", err); 380 } 381 382 int 383 smsc_ifmedia_upd(struct ifnet *ifp) 384 { 385 struct smsc_softc *sc = ifp->if_softc; 386 struct mii_data *mii = &sc->sc_mii; 387 int err; 388 389 if (mii->mii_instance) { 390 struct mii_softc *miisc; 391 392 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 393 mii_phy_reset(miisc); 394 } 395 err = mii_mediachg(mii); 396 return (err); 397 } 398 399 void 400 smsc_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 401 { 402 struct smsc_softc *sc = ifp->if_softc; 403 struct mii_data *mii = &sc->sc_mii; 404 405 mii_pollstat(mii); 406 407 ifmr->ifm_active = mii->mii_media_active; 408 ifmr->ifm_status = mii->mii_media_status; 409 } 410 411 static inline uint32_t 412 smsc_hash(uint8_t addr[ETHER_ADDR_LEN]) 413 { 414 return (ether_crc32_be(addr, ETHER_ADDR_LEN) >> 26) & 0x3f; 415 } 416 417 void 418 smsc_setmulti(struct smsc_softc *sc) 419 { 420 struct ifnet *ifp = &sc->sc_ec.ec_if; 421 struct ether_multi *enm; 422 struct ether_multistep step; 423 uint32_t hashtbl[2] = { 0, 0 }; 424 uint32_t hash; 425 426 if (sc->sc_dying) 427 return; 428 429 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 430 allmulti: 431 smsc_dbg_printf(sc, "receive all multicast enabled\n"); 432 sc->sc_mac_csr |= SMSC_MAC_CSR_MCPAS; 433 sc->sc_mac_csr &= ~SMSC_MAC_CSR_HPFILT; 434 smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 435 return; 436 } else { 437 sc->sc_mac_csr |= SMSC_MAC_CSR_HPFILT; 438 sc->sc_mac_csr &= ~(SMSC_MAC_CSR_PRMS | SMSC_MAC_CSR_MCPAS); 439 } 440 441 ETHER_FIRST_MULTI(step, &sc->sc_ec, enm); 442 while (enm != NULL) { 443 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 444 ETHER_ADDR_LEN) != 0) 445 goto allmulti; 446 447 hash = smsc_hash(enm->enm_addrlo); 448 hashtbl[hash >> 5] |= 1 << (hash & 0x1F); 449 ETHER_NEXT_MULTI(step, enm); 450 } 451 452 /* Debug */ 453 if (sc->sc_mac_csr & SMSC_MAC_CSR_HPFILT) { 454 smsc_dbg_printf(sc, "receive select group of macs\n"); 455 } else { 456 smsc_dbg_printf(sc, "receive own packets only\n"); 457 } 458 459 /* Write the hash table and mac control registers */ 460 ifp->if_flags &= ~IFF_ALLMULTI; 461 smsc_write_reg(sc, SMSC_HASHH, hashtbl[1]); 462 smsc_write_reg(sc, SMSC_HASHL, hashtbl[0]); 463 smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 464 } 465 466 int 467 smsc_sethwcsum(struct smsc_softc *sc) 468 { 469 struct ifnet *ifp = &sc->sc_ec.ec_if; 470 uint32_t val; 471 int err; 472 473 if (!ifp) 474 return EIO; 475 476 err = smsc_read_reg(sc, SMSC_COE_CTRL, &val); 477 if (err != 0) { 478 smsc_warn_printf(sc, "failed to read SMSC_COE_CTRL (err=%d)\n", 479 err); 480 return (err); 481 } 482 483 /* Enable/disable the Rx checksum */ 484 if (ifp->if_capabilities & IFCAP_CSUM_IPv4_Rx) 485 val |= SMSC_COE_CTRL_RX_EN; 486 else 487 val &= ~SMSC_COE_CTRL_RX_EN; 488 489 /* Enable/disable the Tx checksum (currently not supported) */ 490 if (ifp->if_capabilities & IFCAP_CSUM_IPv4_Tx) 491 val |= SMSC_COE_CTRL_TX_EN; 492 else 493 val &= ~SMSC_COE_CTRL_TX_EN; 494 495 err = smsc_write_reg(sc, SMSC_COE_CTRL, val); 496 if (err != 0) { 497 smsc_warn_printf(sc, "failed to write SMSC_COE_CTRL (err=%d)\n", 498 err); 499 return (err); 500 } 501 502 return (0); 503 } 504 505 int 506 smsc_setmacaddress(struct smsc_softc *sc, const uint8_t *addr) 507 { 508 int err; 509 uint32_t val; 510 511 smsc_dbg_printf(sc, "setting mac address to " 512 "%02x:%02x:%02x:%02x:%02x:%02x\n", 513 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 514 515 val = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0]; 516 if ((err = smsc_write_reg(sc, SMSC_MAC_ADDRL, val)) != 0) 517 goto done; 518 519 val = (addr[5] << 8) | addr[4]; 520 err = smsc_write_reg(sc, SMSC_MAC_ADDRH, val); 521 522 done: 523 return (err); 524 } 525 526 void 527 smsc_reset(struct smsc_softc *sc) 528 { 529 if (sc->sc_dying) 530 return; 531 532 /* Wait a little while for the chip to get its brains in order. */ 533 DELAY(1000); 534 535 /* Reinitialize controller to achieve full reset. */ 536 smsc_chip_init(sc); 537 } 538 539 int 540 smsc_init(struct ifnet *ifp) 541 { 542 struct smsc_softc *sc = ifp->if_softc; 543 struct smsc_chain *c; 544 usbd_status err; 545 int s, i; 546 547 if (sc->sc_dying) 548 return EIO; 549 550 s = splnet(); 551 552 /* Cancel pending I/O */ 553 if (ifp->if_flags & IFF_RUNNING) 554 smsc_stop(ifp, 1); 555 556 /* Reset the ethernet interface. */ 557 smsc_reset(sc); 558 559 /* Init RX ring. */ 560 if (smsc_rx_list_init(sc) == ENOBUFS) { 561 aprint_error_dev(sc->sc_dev, "rx list init failed\n"); 562 splx(s); 563 return EIO; 564 } 565 566 /* Init TX ring. */ 567 if (smsc_tx_list_init(sc) == ENOBUFS) { 568 aprint_error_dev(sc->sc_dev, "tx list init failed\n"); 569 splx(s); 570 return EIO; 571 } 572 573 /* Load the multicast filter. */ 574 smsc_setmulti(sc); 575 576 /* Open RX and TX pipes. */ 577 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_RX], 578 USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_RX]); 579 if (err) { 580 printf("%s: open rx pipe failed: %s\n", 581 device_xname(sc->sc_dev), usbd_errstr(err)); 582 splx(s); 583 return EIO; 584 } 585 586 err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_TX], 587 USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_TX]); 588 if (err) { 589 printf("%s: open tx pipe failed: %s\n", 590 device_xname(sc->sc_dev), usbd_errstr(err)); 591 splx(s); 592 return EIO; 593 } 594 595 /* Start up the receive pipe. */ 596 for (i = 0; i < SMSC_RX_LIST_CNT; i++) { 597 c = &sc->sc_cdata.rx_chain[i]; 598 usbd_setup_xfer(c->sc_xfer, sc->sc_ep[SMSC_ENDPT_RX], 599 c, c->sc_buf, sc->sc_bufsz, 600 USBD_SHORT_XFER_OK | USBD_NO_COPY, 601 USBD_NO_TIMEOUT, smsc_rxeof); 602 usbd_transfer(c->sc_xfer); 603 } 604 605 /* TCP/UDP checksum offload engines. */ 606 smsc_sethwcsum(sc); 607 608 /* Indicate we are up and running. */ 609 ifp->if_flags |= IFF_RUNNING; 610 ifp->if_flags &= ~IFF_OACTIVE; 611 612 splx(s); 613 614 callout_reset(&sc->sc_stat_ch, hz, smsc_tick, sc); 615 616 return 0; 617 } 618 619 void 620 smsc_start(struct ifnet *ifp) 621 { 622 struct smsc_softc *sc = ifp->if_softc; 623 struct mbuf *m_head = NULL; 624 625 /* Don't send anything if there is no link or controller is busy. */ 626 if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) { 627 return; 628 } 629 630 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 631 return; 632 633 IFQ_POLL(&ifp->if_snd, m_head); 634 if (m_head == NULL) 635 return; 636 637 if (smsc_encap(sc, m_head, 0)) { 638 ifp->if_flags |= IFF_OACTIVE; 639 return; 640 } 641 IFQ_DEQUEUE(&ifp->if_snd, m_head); 642 643 bpf_mtap(ifp, m_head); 644 645 ifp->if_flags |= IFF_OACTIVE; 646 647 /* 648 * Set a timeout in case the chip goes out to lunch. 649 */ 650 ifp->if_timer = 5; 651 } 652 653 void 654 smsc_tick(void *xsc) 655 { 656 struct smsc_softc *sc = xsc; 657 658 if (sc == NULL) 659 return; 660 661 if (sc->sc_dying) 662 return; 663 664 usb_add_task(sc->sc_udev, &sc->sc_tick_task, USB_TASKQ_DRIVER); 665 } 666 667 void 668 smsc_stop(struct ifnet *ifp, int disable) 669 { 670 usbd_status err; 671 struct smsc_softc *sc = ifp->if_softc; 672 int i; 673 674 smsc_reset(sc); 675 676 ifp = &sc->sc_ec.ec_if; 677 ifp->if_timer = 0; 678 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 679 680 callout_stop(&sc->sc_stat_ch); 681 682 /* Stop transfers. */ 683 if (sc->sc_ep[SMSC_ENDPT_RX] != NULL) { 684 err = usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_RX]); 685 if (err) { 686 printf("%s: abort rx pipe failed: %s\n", 687 device_xname(sc->sc_dev), usbd_errstr(err)); 688 } 689 err = usbd_close_pipe(sc->sc_ep[SMSC_ENDPT_RX]); 690 if (err) { 691 printf("%s: close rx pipe failed: %s\n", 692 device_xname(sc->sc_dev), usbd_errstr(err)); 693 } 694 sc->sc_ep[SMSC_ENDPT_RX] = NULL; 695 } 696 697 if (sc->sc_ep[SMSC_ENDPT_TX] != NULL) { 698 err = usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_TX]); 699 if (err) { 700 printf("%s: abort tx pipe failed: %s\n", 701 device_xname(sc->sc_dev), usbd_errstr(err)); 702 } 703 err = usbd_close_pipe(sc->sc_ep[SMSC_ENDPT_TX]); 704 if (err) { 705 printf("%s: close tx pipe failed: %s\n", 706 device_xname(sc->sc_dev), usbd_errstr(err)); 707 } 708 sc->sc_ep[SMSC_ENDPT_TX] = NULL; 709 } 710 711 if (sc->sc_ep[SMSC_ENDPT_INTR] != NULL) { 712 err = usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_INTR]); 713 if (err) { 714 printf("%s: abort intr pipe failed: %s\n", 715 device_xname(sc->sc_dev), usbd_errstr(err)); 716 } 717 err = usbd_close_pipe(sc->sc_ep[SMSC_ENDPT_INTR]); 718 if (err) { 719 printf("%s: close intr pipe failed: %s\n", 720 device_xname(sc->sc_dev), usbd_errstr(err)); 721 } 722 sc->sc_ep[SMSC_ENDPT_INTR] = NULL; 723 } 724 725 /* Free RX resources. */ 726 for (i = 0; i < SMSC_RX_LIST_CNT; i++) { 727 if (sc->sc_cdata.rx_chain[i].sc_mbuf != NULL) { 728 m_freem(sc->sc_cdata.rx_chain[i].sc_mbuf); 729 sc->sc_cdata.rx_chain[i].sc_mbuf = NULL; 730 } 731 if (sc->sc_cdata.rx_chain[i].sc_xfer != NULL) { 732 usbd_free_xfer(sc->sc_cdata.rx_chain[i].sc_xfer); 733 sc->sc_cdata.rx_chain[i].sc_xfer = NULL; 734 } 735 } 736 737 /* Free TX resources. */ 738 for (i = 0; i < SMSC_TX_LIST_CNT; i++) { 739 if (sc->sc_cdata.tx_chain[i].sc_mbuf != NULL) { 740 m_freem(sc->sc_cdata.tx_chain[i].sc_mbuf); 741 sc->sc_cdata.tx_chain[i].sc_mbuf = NULL; 742 } 743 if (sc->sc_cdata.tx_chain[i].sc_xfer != NULL) { 744 usbd_free_xfer(sc->sc_cdata.tx_chain[i].sc_xfer); 745 sc->sc_cdata.tx_chain[i].sc_xfer = NULL; 746 } 747 } 748 } 749 750 int 751 smsc_chip_init(struct smsc_softc *sc) 752 { 753 int err; 754 uint32_t reg_val; 755 int burst_cap; 756 757 /* Enter H/W config mode */ 758 smsc_write_reg(sc, SMSC_HW_CFG, SMSC_HW_CFG_LRST); 759 760 if ((err = smsc_wait_for_bits(sc, SMSC_HW_CFG, 761 SMSC_HW_CFG_LRST)) != 0) { 762 smsc_warn_printf(sc, "timed-out waiting for reset to " 763 "complete\n"); 764 goto init_failed; 765 } 766 767 /* Reset the PHY */ 768 smsc_write_reg(sc, SMSC_PM_CTRL, SMSC_PM_CTRL_PHY_RST); 769 770 if ((err = smsc_wait_for_bits(sc, SMSC_PM_CTRL, 771 SMSC_PM_CTRL_PHY_RST) != 0)) { 772 smsc_warn_printf(sc, "timed-out waiting for phy reset to " 773 "complete\n"); 774 goto init_failed; 775 } 776 usbd_delay_ms(sc->sc_udev, 40); 777 778 /* Set the mac address */ 779 struct ifnet *ifp = &sc->sc_ec.ec_if; 780 const char *eaddr = CLLADDR(ifp->if_sadl); 781 if ((err = smsc_setmacaddress(sc, eaddr)) != 0) { 782 smsc_warn_printf(sc, "failed to set the MAC address\n"); 783 goto init_failed; 784 } 785 786 /* 787 * Don't know what the HW_CFG_BIR bit is, but following the reset 788 * sequence as used in the Linux driver. 789 */ 790 if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) != 0) { 791 smsc_warn_printf(sc, "failed to read HW_CFG: %d\n", err); 792 goto init_failed; 793 } 794 reg_val |= SMSC_HW_CFG_BIR; 795 smsc_write_reg(sc, SMSC_HW_CFG, reg_val); 796 797 /* 798 * There is a so called 'turbo mode' that the linux driver supports, it 799 * seems to allow you to jam multiple frames per Rx transaction. 800 * By default this driver supports that and therefore allows multiple 801 * frames per USB transfer. 802 * 803 * The xfer buffer size needs to reflect this as well, therefore based 804 * on the calculations in the Linux driver the RX bufsize is set to 805 * 18944, 806 * bufsz = (16 * 1024 + 5 * 512) 807 * 808 * Burst capability is the number of URBs that can be in a burst of 809 * data/ethernet frames. 810 */ 811 #ifdef SMSC_TURBO 812 if (sc->sc_udev->speed == USB_SPEED_HIGH) 813 burst_cap = 37; 814 else 815 burst_cap = 128; 816 #else 817 burst_cap = 0; 818 #endif 819 820 smsc_write_reg(sc, SMSC_BURST_CAP, burst_cap); 821 822 /* Set the default bulk in delay (magic value from Linux driver) */ 823 smsc_write_reg(sc, SMSC_BULK_IN_DLY, 0x00002000); 824 825 /* 826 * Initialise the RX interface 827 */ 828 if ((err = smsc_read_reg(sc, SMSC_HW_CFG, ®_val)) < 0) { 829 smsc_warn_printf(sc, "failed to read HW_CFG: (err = %d)\n", 830 err); 831 goto init_failed; 832 } 833 834 /* 835 * The following settings are used for 'turbo mode', a.k.a multiple 836 * frames per Rx transaction (again info taken form Linux driver). 837 */ 838 #ifdef SMSC_TURBO 839 reg_val |= (SMSC_HW_CFG_MEF | SMSC_HW_CFG_BCE); 840 #endif 841 842 smsc_write_reg(sc, SMSC_HW_CFG, reg_val); 843 844 /* Clear the status register ? */ 845 smsc_write_reg(sc, SMSC_INTR_STATUS, 0xffffffff); 846 847 /* Read and display the revision register */ 848 if ((err = smsc_read_reg(sc, SMSC_ID_REV, &sc->sc_rev_id)) < 0) { 849 smsc_warn_printf(sc, "failed to read ID_REV (err = %d)\n", err); 850 goto init_failed; 851 } 852 853 /* GPIO/LED setup */ 854 reg_val = SMSC_LED_GPIO_CFG_SPD_LED | SMSC_LED_GPIO_CFG_LNK_LED | 855 SMSC_LED_GPIO_CFG_FDX_LED; 856 smsc_write_reg(sc, SMSC_LED_GPIO_CFG, reg_val); 857 858 /* 859 * Initialise the TX interface 860 */ 861 smsc_write_reg(sc, SMSC_FLOW, 0); 862 863 smsc_write_reg(sc, SMSC_AFC_CFG, AFC_CFG_DEFAULT); 864 865 /* Read the current MAC configuration */ 866 if ((err = smsc_read_reg(sc, SMSC_MAC_CSR, &sc->sc_mac_csr)) < 0) { 867 smsc_warn_printf(sc, "failed to read MAC_CSR (err=%d)\n", err); 868 goto init_failed; 869 } 870 871 /* Vlan */ 872 smsc_write_reg(sc, SMSC_VLAN1, (uint32_t)ETHERTYPE_VLAN); 873 874 /* 875 * Start TX 876 */ 877 sc->sc_mac_csr |= SMSC_MAC_CSR_TXEN; 878 smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 879 smsc_write_reg(sc, SMSC_TX_CFG, SMSC_TX_CFG_ON); 880 881 /* 882 * Start RX 883 */ 884 sc->sc_mac_csr |= SMSC_MAC_CSR_RXEN; 885 smsc_write_reg(sc, SMSC_MAC_CSR, sc->sc_mac_csr); 886 887 return (0); 888 889 init_failed: 890 smsc_err_printf(sc, "smsc_chip_init failed (err=%d)\n", err); 891 return (err); 892 } 893 894 int 895 smsc_ioctl(struct ifnet *ifp, u_long cmd, void *data) 896 { 897 struct smsc_softc *sc = ifp->if_softc; 898 struct ifreq /*const*/ *ifr = data; 899 int s, error = 0; 900 901 if (sc->sc_dying) 902 return EIO; 903 904 s = splnet(); 905 906 switch(cmd) { 907 case SIOCSIFFLAGS: 908 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 909 break; 910 911 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 912 case IFF_RUNNING: 913 smsc_stop(ifp, 1); 914 break; 915 case IFF_UP: 916 smsc_init(ifp); 917 break; 918 case IFF_UP | IFF_RUNNING: 919 if (ifp->if_flags & IFF_PROMISC && 920 !(sc->sc_if_flags & IFF_PROMISC)) { 921 sc->sc_mac_csr |= SMSC_MAC_CSR_PRMS; 922 smsc_write_reg(sc, SMSC_MAC_CSR, 923 sc->sc_mac_csr); 924 smsc_setmulti(sc); 925 } else if (!(ifp->if_flags & IFF_PROMISC) && 926 sc->sc_if_flags & IFF_PROMISC) { 927 sc->sc_mac_csr &= ~SMSC_MAC_CSR_PRMS; 928 smsc_write_reg(sc, SMSC_MAC_CSR, 929 sc->sc_mac_csr); 930 smsc_setmulti(sc); 931 } else { 932 smsc_init(ifp); 933 } 934 break; 935 } 936 sc->sc_if_flags = ifp->if_flags; 937 break; 938 939 case SIOCGIFMEDIA: 940 case SIOCSIFMEDIA: 941 error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii.mii_media, cmd); 942 break; 943 944 default: 945 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 946 break; 947 948 error = 0; 949 950 if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) 951 smsc_setmulti(sc); 952 953 } 954 splx(s); 955 956 return error; 957 } 958 959 int 960 smsc_match(device_t parent, cfdata_t match, void *aux) 961 { 962 struct usb_attach_arg *uaa = aux; 963 964 return (usb_lookup(smsc_devs, uaa->vendor, uaa->product) != NULL) ? 965 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 966 } 967 968 void 969 smsc_attach(device_t parent, device_t self, void *aux) 970 { 971 struct smsc_softc *sc = device_private(self); 972 struct usb_attach_arg *uaa = aux; 973 usbd_device_handle dev = uaa->device; 974 usb_interface_descriptor_t *id; 975 usb_endpoint_descriptor_t *ed; 976 char *devinfop; 977 struct mii_data *mii; 978 struct ifnet *ifp; 979 int err, s, i; 980 uint32_t mac_h, mac_l; 981 982 sc->sc_dev = self; 983 sc->sc_udev = dev; 984 985 aprint_naive("\n"); 986 aprint_normal("\n"); 987 988 devinfop = usbd_devinfo_alloc(sc->sc_udev, 0); 989 aprint_normal_dev(self, "%s\n", devinfop); 990 usbd_devinfo_free(devinfop); 991 992 err = usbd_set_config_no(dev, SMSC_CONFIG_INDEX, 1); 993 if (err) { 994 aprint_error_dev(self, "failed to set configuration" 995 ", err=%s\n", usbd_errstr(err)); 996 return; 997 } 998 /* Setup the endpoints for the SMSC LAN95xx device(s) */ 999 usb_init_task(&sc->sc_tick_task, smsc_tick_task, sc, 0); 1000 usb_init_task(&sc->sc_stop_task, (void (*)(void *))smsc_stop, sc, 0); 1001 mutex_init(&sc->sc_mii_lock, MUTEX_DEFAULT, IPL_NONE); 1002 1003 err = usbd_device2interface_handle(dev, SMSC_IFACE_IDX, &sc->sc_iface); 1004 if (err) { 1005 aprint_error_dev(self, "getting interface handle failed\n"); 1006 return; 1007 } 1008 1009 id = usbd_get_interface_descriptor(sc->sc_iface); 1010 1011 if (sc->sc_udev->speed >= USB_SPEED_HIGH) 1012 sc->sc_bufsz = SMSC_MAX_BUFSZ; 1013 else 1014 sc->sc_bufsz = SMSC_MIN_BUFSZ; 1015 1016 /* Find endpoints. */ 1017 for (i = 0; i < id->bNumEndpoints; i++) { 1018 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 1019 if (!ed) { 1020 aprint_error_dev(self, "couldn't get ep %d\n", i); 1021 return; 1022 } 1023 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 1024 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 1025 sc->sc_ed[SMSC_ENDPT_RX] = ed->bEndpointAddress; 1026 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 1027 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 1028 sc->sc_ed[SMSC_ENDPT_TX] = ed->bEndpointAddress; 1029 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 1030 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 1031 sc->sc_ed[SMSC_ENDPT_INTR] = ed->bEndpointAddress; 1032 } 1033 } 1034 1035 s = splnet(); 1036 1037 ifp = &sc->sc_ec.ec_if; 1038 ifp->if_softc = sc; 1039 strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 1040 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1041 ifp->if_init = smsc_init; 1042 ifp->if_ioctl = smsc_ioctl; 1043 ifp->if_start = smsc_start; 1044 ifp->if_stop = smsc_stop; 1045 1046 sc->sc_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 1047 1048 /* Setup some of the basics */ 1049 sc->sc_phyno = 1; 1050 1051 /* 1052 * Attempt to get the mac address, if an EEPROM is not attached this 1053 * will just return FF:FF:FF:FF:FF:FF, so in such cases we invent a MAC 1054 * address based on urandom. 1055 */ 1056 memset(sc->sc_enaddr, 0xff, ETHER_ADDR_LEN); 1057 1058 prop_dictionary_t dict = device_properties(self); 1059 prop_data_t eaprop = prop_dictionary_get(dict, "mac-address"); 1060 1061 if (eaprop != NULL) { 1062 KASSERT(prop_object_type(eaprop) == PROP_TYPE_DATA); 1063 KASSERT(prop_data_size(eaprop) == ETHER_ADDR_LEN); 1064 memcpy(sc->sc_enaddr, prop_data_data_nocopy(eaprop), 1065 ETHER_ADDR_LEN); 1066 } else 1067 /* Check if there is already a MAC address in the register */ 1068 if ((smsc_read_reg(sc, SMSC_MAC_ADDRL, &mac_l) == 0) && 1069 (smsc_read_reg(sc, SMSC_MAC_ADDRH, &mac_h) == 0)) { 1070 sc->sc_enaddr[5] = (uint8_t)((mac_h >> 8) & 0xff); 1071 sc->sc_enaddr[4] = (uint8_t)((mac_h) & 0xff); 1072 sc->sc_enaddr[3] = (uint8_t)((mac_l >> 24) & 0xff); 1073 sc->sc_enaddr[2] = (uint8_t)((mac_l >> 16) & 0xff); 1074 sc->sc_enaddr[1] = (uint8_t)((mac_l >> 8) & 0xff); 1075 sc->sc_enaddr[0] = (uint8_t)((mac_l) & 0xff); 1076 } 1077 1078 aprint_normal_dev(self, " Ethernet address %s\n", ether_sprintf(sc->sc_enaddr)); 1079 1080 IFQ_SET_READY(&ifp->if_snd); 1081 1082 /* Initialize MII/media info. */ 1083 mii = &sc->sc_mii; 1084 mii->mii_ifp = ifp; 1085 mii->mii_readreg = smsc_miibus_readreg; 1086 mii->mii_writereg = smsc_miibus_writereg; 1087 mii->mii_statchg = smsc_miibus_statchg; 1088 mii->mii_flags = MIIF_AUTOTSLEEP; 1089 sc->sc_ec.ec_mii = mii; 1090 ifmedia_init(&mii->mii_media, 0, smsc_ifmedia_upd, smsc_ifmedia_sts); 1091 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 1092 1093 if (LIST_FIRST(&mii->mii_phys) == NULL) { 1094 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 1095 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 1096 } else 1097 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 1098 1099 if_attach(ifp); 1100 ether_ifattach(ifp, sc->sc_enaddr); 1101 1102 rnd_attach_source(&sc->sc_rnd_source, device_xname(sc->sc_dev), 1103 RND_TYPE_NET, 0); 1104 1105 callout_init(&sc->sc_stat_ch, 0); 1106 1107 splx(s); 1108 1109 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 1110 } 1111 1112 int 1113 smsc_detach(device_t self, int flags) 1114 { 1115 struct smsc_softc *sc = device_private(self); 1116 struct ifnet *ifp = &sc->sc_ec.ec_if; 1117 int s; 1118 1119 callout_stop(&sc->sc_stat_ch); 1120 1121 if (sc->sc_ep[SMSC_ENDPT_TX] != NULL) 1122 usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_TX]); 1123 if (sc->sc_ep[SMSC_ENDPT_RX] != NULL) 1124 usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_RX]); 1125 if (sc->sc_ep[SMSC_ENDPT_INTR] != NULL) 1126 usbd_abort_pipe(sc->sc_ep[SMSC_ENDPT_INTR]); 1127 1128 /* 1129 * Remove any pending tasks. They cannot be executing because they run 1130 * in the same thread as detach. 1131 */ 1132 usb_rem_task(sc->sc_udev, &sc->sc_tick_task); 1133 usb_rem_task(sc->sc_udev, &sc->sc_stop_task); 1134 1135 s = splusb(); 1136 1137 if (--sc->sc_refcnt >= 0) { 1138 /* Wait for processes to go away */ 1139 usb_detach_waitold(sc->sc_dev); 1140 } 1141 1142 if (ifp->if_flags & IFF_RUNNING) 1143 smsc_stop(ifp ,1); 1144 1145 rnd_detach_source(&sc->sc_rnd_source); 1146 mii_detach(&sc->sc_mii, MII_PHY_ANY, MII_OFFSET_ANY); 1147 ifmedia_delete_instance(&sc->sc_mii.mii_media, IFM_INST_ANY); 1148 if (ifp->if_softc != NULL) { 1149 ether_ifdetach(ifp); 1150 if_detach(ifp); 1151 } 1152 1153 #ifdef DIAGNOSTIC 1154 if (sc->sc_ep[SMSC_ENDPT_TX] != NULL || 1155 sc->sc_ep[SMSC_ENDPT_RX] != NULL || 1156 sc->sc_ep[SMSC_ENDPT_INTR] != NULL) 1157 printf("%s: detach has active endpoints\n", 1158 device_xname(sc->sc_dev)); 1159 #endif 1160 1161 if (--sc->sc_refcnt >= 0) { 1162 /* Wait for processes to go away. */ 1163 usb_detach_waitold(sc->sc_dev); 1164 } 1165 splx(s); 1166 1167 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 1168 1169 mutex_destroy(&sc->sc_mii_lock); 1170 1171 return (0); 1172 } 1173 1174 void 1175 smsc_tick_task(void *xsc) 1176 { 1177 int s; 1178 struct smsc_softc *sc = xsc; 1179 struct ifnet *ifp; 1180 struct mii_data *mii; 1181 1182 if (sc == NULL) 1183 return; 1184 1185 if (sc->sc_dying) 1186 return; 1187 ifp = &sc->sc_ec.ec_if; 1188 mii = &sc->sc_mii; 1189 if (mii == NULL) 1190 return; 1191 1192 s = splnet(); 1193 1194 mii_tick(mii); 1195 if ((sc->sc_flags & SMSC_FLAG_LINK) == 0) 1196 smsc_miibus_statchg(ifp); 1197 callout_reset(&sc->sc_stat_ch, hz, smsc_tick, sc); 1198 1199 splx(s); 1200 } 1201 1202 int 1203 smsc_activate(device_t self, enum devact act) 1204 { 1205 struct smsc_softc *sc = device_private(self); 1206 1207 switch (act) { 1208 case DVACT_DEACTIVATE: 1209 if_deactivate(&sc->sc_ec.ec_if); 1210 sc->sc_dying = 1; 1211 return 0; 1212 default: 1213 return EOPNOTSUPP; 1214 } 1215 return (0); 1216 } 1217 1218 void 1219 smsc_lock_mii(struct smsc_softc *sc) 1220 { 1221 sc->sc_refcnt++; 1222 mutex_enter(&sc->sc_mii_lock); 1223 } 1224 1225 void 1226 smsc_unlock_mii(struct smsc_softc *sc) 1227 { 1228 mutex_exit(&sc->sc_mii_lock); 1229 if (--sc->sc_refcnt < 0) 1230 usb_detach_wakeupold(sc->sc_dev); 1231 } 1232 1233 void 1234 smsc_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1235 { 1236 struct smsc_chain *c = (struct smsc_chain *)priv; 1237 struct smsc_softc *sc = c->sc_sc; 1238 struct ifnet *ifp = &sc->sc_ec.ec_if; 1239 u_char *buf = c->sc_buf; 1240 uint32_t total_len; 1241 uint16_t pktlen = 0; 1242 struct mbuf *m; 1243 int s; 1244 uint32_t rxhdr; 1245 1246 if (sc->sc_dying) 1247 return; 1248 1249 if (!(ifp->if_flags & IFF_RUNNING)) 1250 return; 1251 1252 if (status != USBD_NORMAL_COMPLETION) { 1253 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1254 return; 1255 if (usbd_ratecheck(&sc->sc_rx_notice)) { 1256 printf("%s: usb errors on rx: %s\n", 1257 device_xname(sc->sc_dev), usbd_errstr(status)); 1258 } 1259 if (status == USBD_STALLED) 1260 usbd_clear_endpoint_stall_async(sc->sc_ep[SMSC_ENDPT_RX]); 1261 goto done; 1262 } 1263 1264 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 1265 smsc_dbg_printf(sc, "xfer status total_len %d\n", total_len); 1266 1267 do { 1268 if (total_len < sizeof(rxhdr)) { 1269 smsc_dbg_printf(sc, "total_len %d < sizeof(rxhdr) %zu\n", 1270 total_len, sizeof(rxhdr)); 1271 ifp->if_ierrors++; 1272 goto done; 1273 } 1274 1275 buf += pktlen; 1276 1277 memcpy(&rxhdr, buf, sizeof(rxhdr)); 1278 rxhdr = le32toh(rxhdr); 1279 total_len -= sizeof(rxhdr); 1280 1281 if (rxhdr & SMSC_RX_STAT_ERROR) { 1282 smsc_dbg_printf(sc, "rx error (hdr 0x%08x)\n", rxhdr); 1283 ifp->if_ierrors++; 1284 goto done; 1285 } 1286 1287 pktlen = (uint16_t)SMSC_RX_STAT_FRM_LENGTH(rxhdr); 1288 smsc_dbg_printf(sc, "rxeof total_len %d pktlen %d rxhdr " 1289 "0x%08x\n", total_len, pktlen, rxhdr); 1290 if (pktlen > total_len) { 1291 smsc_dbg_printf(sc, "pktlen %d > total_len %d\n", 1292 pktlen, total_len); 1293 ifp->if_ierrors++; 1294 goto done; 1295 } 1296 1297 buf += sizeof(rxhdr); 1298 total_len -= pktlen; 1299 1300 m = smsc_newbuf(); 1301 if (m == NULL) { 1302 smsc_dbg_printf(sc, "smc_newbuf returned NULL\n"); 1303 ifp->if_ierrors++; 1304 goto done; 1305 } 1306 1307 ifp->if_ipackets++; 1308 m->m_pkthdr.rcvif = ifp; 1309 1310 pktlen -= 2; // JDM 1311 1312 m->m_pkthdr.len = m->m_len = pktlen; 1313 #define ETHER_ALIGN 2 1314 m_adj(m, ETHER_ALIGN); 1315 1316 memcpy(mtod(m, char *), buf, pktlen); 1317 1318 /* push the packet up */ 1319 s = splnet(); 1320 bpf_mtap(ifp, m); 1321 ifp->if_input(ifp, m); 1322 splx(s); 1323 } while (total_len > 0); 1324 1325 done: 1326 memset(c->sc_buf, 0, sc->sc_bufsz); 1327 1328 /* Setup new transfer. */ 1329 usbd_setup_xfer(xfer, sc->sc_ep[SMSC_ENDPT_RX], 1330 c, c->sc_buf, sc->sc_bufsz, 1331 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1332 USBD_NO_TIMEOUT, smsc_rxeof); 1333 usbd_transfer(xfer); 1334 1335 return; 1336 } 1337 1338 void 1339 smsc_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1340 { 1341 struct smsc_softc *sc; 1342 struct smsc_chain *c; 1343 struct ifnet *ifp; 1344 int s; 1345 1346 c = priv; 1347 sc = c->sc_sc; 1348 ifp = &sc->sc_ec.ec_if; 1349 1350 if (sc->sc_dying) 1351 return; 1352 1353 s = splnet(); 1354 1355 ifp->if_timer = 0; 1356 ifp->if_flags &= ~IFF_OACTIVE; 1357 1358 if (status != USBD_NORMAL_COMPLETION) { 1359 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1360 splx(s); 1361 return; 1362 } 1363 ifp->if_oerrors++; 1364 printf("%s: usb error on tx: %s\n", device_xname(sc->sc_dev), 1365 usbd_errstr(status)); 1366 if (status == USBD_STALLED) 1367 usbd_clear_endpoint_stall_async(sc->sc_ep[SMSC_ENDPT_TX]); 1368 splx(s); 1369 return; 1370 } 1371 ifp->if_opackets++; 1372 1373 m_freem(c->sc_mbuf); 1374 c->sc_mbuf = NULL; 1375 1376 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1377 smsc_start(ifp); 1378 1379 splx(s); 1380 } 1381 1382 int 1383 smsc_tx_list_init(struct smsc_softc *sc) 1384 { 1385 struct smsc_cdata *cd; 1386 struct smsc_chain *c; 1387 int i; 1388 1389 cd = &sc->sc_cdata; 1390 for (i = 0; i < SMSC_TX_LIST_CNT; i++) { 1391 c = &cd->tx_chain[i]; 1392 c->sc_sc = sc; 1393 c->sc_idx = i; 1394 c->sc_mbuf = NULL; 1395 if (c->sc_xfer == NULL) { 1396 c->sc_xfer = usbd_alloc_xfer(sc->sc_udev); 1397 if (c->sc_xfer == NULL) 1398 return (ENOBUFS); 1399 c->sc_buf = usbd_alloc_buffer(c->sc_xfer, 1400 sc->sc_bufsz); 1401 if (c->sc_buf == NULL) { 1402 usbd_free_xfer(c->sc_xfer); 1403 return (ENOBUFS); 1404 } 1405 } 1406 } 1407 1408 return (0); 1409 } 1410 1411 int 1412 smsc_rx_list_init(struct smsc_softc *sc) 1413 { 1414 struct smsc_cdata *cd; 1415 struct smsc_chain *c; 1416 int i; 1417 1418 cd = &sc->sc_cdata; 1419 for (i = 0; i < SMSC_RX_LIST_CNT; i++) { 1420 c = &cd->rx_chain[i]; 1421 c->sc_sc = sc; 1422 c->sc_idx = i; 1423 c->sc_mbuf = NULL; 1424 if (c->sc_xfer == NULL) { 1425 c->sc_xfer = usbd_alloc_xfer(sc->sc_udev); 1426 if (c->sc_xfer == NULL) 1427 return (ENOBUFS); 1428 c->sc_buf = usbd_alloc_buffer(c->sc_xfer, 1429 sc->sc_bufsz); 1430 if (c->sc_buf == NULL) { 1431 usbd_free_xfer(c->sc_xfer); 1432 return (ENOBUFS); 1433 } 1434 } 1435 } 1436 1437 return (0); 1438 } 1439 1440 struct mbuf * 1441 smsc_newbuf(void) 1442 { 1443 struct mbuf *m; 1444 1445 MGETHDR(m, M_DONTWAIT, MT_DATA); 1446 if (m == NULL) 1447 return (NULL); 1448 1449 MCLGET(m, M_DONTWAIT); 1450 if (!(m->m_flags & M_EXT)) { 1451 m_freem(m); 1452 return (NULL); 1453 } 1454 1455 return (m); 1456 } 1457 1458 int 1459 smsc_encap(struct smsc_softc *sc, struct mbuf *m, int idx) 1460 { 1461 struct ifnet *ifp = &sc->sc_ec.ec_if; 1462 struct smsc_chain *c; 1463 usbd_status err; 1464 uint32_t txhdr; 1465 uint32_t frm_len = 0; 1466 1467 c = &sc->sc_cdata.tx_chain[idx]; 1468 1469 /* 1470 * Each frame is prefixed with two 32-bit values describing the 1471 * length of the packet and buffer. 1472 */ 1473 txhdr = SMSC_TX_CTRL_0_BUF_SIZE(m->m_pkthdr.len) | 1474 SMSC_TX_CTRL_0_FIRST_SEG | SMSC_TX_CTRL_0_LAST_SEG; 1475 txhdr = htole32(txhdr); 1476 memcpy(c->sc_buf, &txhdr, sizeof(txhdr)); 1477 1478 txhdr = SMSC_TX_CTRL_1_PKT_LENGTH(m->m_pkthdr.len); 1479 txhdr = htole32(txhdr); 1480 memcpy(c->sc_buf + 4, &txhdr, sizeof(txhdr)); 1481 1482 frm_len += 8; 1483 1484 /* Next copy in the actual packet */ 1485 m_copydata(m, 0, m->m_pkthdr.len, c->sc_buf + frm_len); 1486 frm_len += m->m_pkthdr.len; 1487 1488 c->sc_mbuf = m; 1489 1490 usbd_setup_xfer(c->sc_xfer, sc->sc_ep[SMSC_ENDPT_TX], 1491 c, c->sc_buf, frm_len, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1492 10000, smsc_txeof); 1493 1494 err = usbd_transfer(c->sc_xfer); 1495 /* XXXNH get task to stop interface */ 1496 if (err != USBD_IN_PROGRESS) { 1497 smsc_stop(ifp, 0); 1498 return (EIO); 1499 } 1500 1501 sc->sc_cdata.tx_cnt++; 1502 1503 return (0); 1504 } 1505
Indexes created Thu Oct 02 01:09:59 GMT 2025