if_axen.c revision 1.3.4.2
1 /* $NetBSD: if_axen.c,v 1.3.4.2 2014/08/20 00:03:51 tls Exp $ */ 2 /* $OpenBSD: if_axen.c,v 1.3 2013/10/21 10:10:22 yuo Exp $ */ 3 4 /* 5 * Copyright (c) 2013 Yojiro UO <yuo (at) openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * ASIX Electronics AX88178a USB 2.0 ethernet and AX88179 USB 3.0 Ethernet 22 * driver. 23 */ 24 25 #include <sys/cdefs.h> 26 __KERNEL_RCSID(0, "$NetBSD: if_axen.c,v 1.3.4.2 2014/08/20 00:03:51 tls Exp $"); 27 28 #ifdef _KERNEL_OPT 29 #include "opt_inet.h" 30 #endif 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/device.h> 35 #include <sys/kernel.h> 36 #include <sys/mbuf.h> 37 #include <sys/module.h> 38 #include <sys/rwlock.h> 39 #include <sys/socket.h> 40 #include <sys/sockio.h> 41 #include <sys/systm.h> 42 43 #include <sys/rnd.h> 44 45 #include <net/if.h> 46 #include <net/if_dl.h> 47 #include <net/if_ether.h> 48 #include <net/if_media.h> 49 50 #include <net/bpf.h> 51 52 #include <dev/mii/mii.h> 53 #include <dev/mii/miivar.h> 54 55 #include <dev/usb/usb.h> 56 #include <dev/usb/usbdi.h> 57 #include <dev/usb/usbdi_util.h> 58 #include <dev/usb/usbdivar.h> 59 #include <dev/usb/usbdevs.h> 60 61 #include <dev/usb/if_axenreg.h> 62 63 #ifdef AXEN_DEBUG 64 #define DPRINTF(x) do { if (axendebug) printf x; } while (/*CONSTCOND*/0) 65 #define DPRINTFN(n,x) do { if (axendebug >= (n)) printf x; } while (/*CONSTCOND*/0) 66 int axendebug = 0; 67 #else 68 #define DPRINTF(x) 69 #define DPRINTFN(n,x) 70 #endif 71 72 #define AXEN_TOE /* enable checksum offload function */ 73 74 /* 75 * Various supported device vendors/products. 76 */ 77 static const struct axen_type axen_devs[] = { 78 #if 0 /* not tested */ 79 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178A}, AX178A }, 80 #endif 81 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88179}, AX179 } 82 }; 83 84 #define axen_lookup(v, p) ((const struct axen_type *)usb_lookup(axen_devs, v, p)) 85 86 static int axen_match(device_t, cfdata_t, void *); 87 static void axen_attach(device_t, device_t, void *); 88 static int axen_detach(device_t, int); 89 static int axen_activate(device_t, devact_t); 90 91 CFATTACH_DECL_NEW(axen, sizeof(struct axen_softc), 92 axen_match, axen_attach, axen_detach, axen_activate); 93 94 static int axen_tx_list_init(struct axen_softc *); 95 static int axen_rx_list_init(struct axen_softc *); 96 static struct mbuf *axen_newbuf(void); 97 static int axen_encap(struct axen_softc *, struct mbuf *, int); 98 static void axen_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 99 static void axen_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 100 static void axen_tick(void *); 101 static void axen_tick_task(void *); 102 static void axen_start(struct ifnet *); 103 static int axen_ioctl(struct ifnet *, u_long, void *); 104 static int axen_init(struct ifnet *); 105 static void axen_stop(struct ifnet *, int); 106 static void axen_watchdog(struct ifnet *); 107 static int axen_miibus_readreg(device_t, int, int); 108 static void axen_miibus_writereg(device_t, int, int, int); 109 static void axen_miibus_statchg(struct ifnet *); 110 static int axen_cmd(struct axen_softc *, int, int, int, void *); 111 static int axen_ifmedia_upd(struct ifnet *); 112 static void axen_ifmedia_sts(struct ifnet *, struct ifmediareq *); 113 static void axen_reset(struct axen_softc *sc); 114 #if 0 115 static int axen_ax88179_eeprom(struct axen_softc *, void *); 116 #endif 117 118 static void axen_iff(struct axen_softc *); 119 static void axen_lock_mii(struct axen_softc *sc); 120 static void axen_unlock_mii(struct axen_softc *sc); 121 122 static void axen_ax88179_init(struct axen_softc *); 123 124 /* Get exclusive access to the MII registers */ 125 static void 126 axen_lock_mii(struct axen_softc *sc) 127 { 128 129 sc->axen_refcnt++; 130 rw_enter(&sc->axen_mii_lock, RW_WRITER); 131 } 132 133 static void 134 axen_unlock_mii(struct axen_softc *sc) 135 { 136 137 rw_exit(&sc->axen_mii_lock); 138 if (--sc->axen_refcnt < 0) 139 usb_detach_wakeupold(sc->axen_dev); 140 } 141 142 static int 143 axen_cmd(struct axen_softc *sc, int cmd, int index, int val, void *buf) 144 { 145 usb_device_request_t req; 146 usbd_status err; 147 148 KASSERT(rw_lock_held(&sc->axen_mii_lock)); 149 150 if (sc->axen_dying) 151 return 0; 152 153 if (AXEN_CMD_DIR(cmd)) 154 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 155 else 156 req.bmRequestType = UT_READ_VENDOR_DEVICE; 157 req.bRequest = AXEN_CMD_CMD(cmd); 158 USETW(req.wValue, val); 159 USETW(req.wIndex, index); 160 USETW(req.wLength, AXEN_CMD_LEN(cmd)); 161 162 err = usbd_do_request(sc->axen_udev, &req, buf); 163 DPRINTFN(5, ("axen_cmd: cmd 0x%04x val 0x%04x len %d\n", 164 cmd, val, AXEN_CMD_LEN(cmd))); 165 166 if (err) { 167 DPRINTF(("axen_cmd err: cmd: %d, error: %d\n", cmd, err)); 168 return -1; 169 } 170 171 return 0; 172 } 173 174 static int 175 axen_miibus_readreg(device_t dev, int phy, int reg) 176 { 177 struct axen_softc *sc = device_private(dev); 178 usbd_status err; 179 uint16_t val; 180 int ival; 181 182 if (sc->axen_dying) { 183 DPRINTF(("axen: dying\n")); 184 return 0; 185 } 186 187 if (sc->axen_phyno != phy) 188 return 0; 189 190 axen_lock_mii(sc); 191 err = axen_cmd(sc, AXEN_CMD_MII_READ_REG, reg, phy, &val); 192 axen_unlock_mii(sc); 193 194 if (err) { 195 aprint_error_dev(sc->axen_dev, "read PHY failed\n"); 196 return -1; 197 } 198 199 ival = le16toh(val); 200 DPRINTFN(2,("axen_miibus_readreg: phy 0x%x reg 0x%x val 0x%x\n", 201 phy, reg, ival)); 202 203 if (reg == MII_BMSR) { 204 ival &= ~BMSR_EXTCAP; 205 } 206 207 return ival; 208 } 209 210 static void 211 axen_miibus_writereg(device_t dev, int phy, int reg, int val) 212 { 213 struct axen_softc *sc = device_private(dev); 214 usbd_status err; 215 uint16_t uval; 216 217 if (sc->axen_dying) 218 return; 219 220 if (sc->axen_phyno != phy) 221 return; 222 223 uval = htole16(val); 224 axen_lock_mii(sc); 225 err = axen_cmd(sc, AXEN_CMD_MII_WRITE_REG, reg, phy, &uval); 226 axen_unlock_mii(sc); 227 DPRINTFN(2, ("axen_miibus_writereg: phy 0x%x reg 0x%x val 0x%0x\n", 228 phy, reg, val)); 229 230 if (err) { 231 aprint_error_dev(sc->axen_dev, "write PHY failed\n"); 232 return; 233 } 234 } 235 236 static void 237 axen_miibus_statchg(struct ifnet *ifp) 238 { 239 struct axen_softc *sc = ifp->if_softc; 240 struct mii_data *mii = GET_MII(sc); 241 int err; 242 uint16_t val; 243 uint16_t wval; 244 245 sc->axen_link = 0; 246 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 247 (IFM_ACTIVE | IFM_AVALID)) { 248 switch (IFM_SUBTYPE(mii->mii_media_active)) { 249 case IFM_10_T: 250 case IFM_100_TX: 251 sc->axen_link++; 252 break; 253 case IFM_1000_T: 254 sc->axen_link++; 255 break; 256 default: 257 break; 258 } 259 } 260 261 /* Lost link, do nothing. */ 262 if (sc->axen_link == 0) 263 return; 264 265 val = 0; 266 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 267 val |= AXEN_MEDIUM_FDX; 268 269 val |= (AXEN_MEDIUM_RECV_EN | AXEN_MEDIUM_ALWAYS_ONE); 270 val |= (AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN); 271 272 switch (IFM_SUBTYPE(mii->mii_media_active)) { 273 case IFM_1000_T: 274 val |= AXEN_MEDIUM_GIGA | AXEN_MEDIUM_EN_125MHZ; 275 break; 276 case IFM_100_TX: 277 val |= AXEN_MEDIUM_PS; 278 break; 279 case IFM_10_T: 280 /* doesn't need to be handled */ 281 break; 282 } 283 284 DPRINTF(("axen_miibus_statchg: val=0x%x\n", val)); 285 wval = htole16(val); 286 axen_lock_mii(sc); 287 err = axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 288 axen_unlock_mii(sc); 289 if (err) { 290 aprint_error_dev(sc->axen_dev, "media change failed\n"); 291 return; 292 } 293 } 294 295 /* 296 * Set media options. 297 */ 298 static int 299 axen_ifmedia_upd(struct ifnet *ifp) 300 { 301 struct axen_softc *sc = ifp->if_softc; 302 struct mii_data *mii = GET_MII(sc); 303 int rc; 304 305 sc->axen_link = 0; 306 307 if (mii->mii_instance) { 308 struct mii_softc *miisc; 309 310 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 311 mii_phy_reset(miisc); 312 } 313 314 if ((rc = mii_mediachg(mii)) == ENXIO) 315 return 0; 316 return rc; 317 } 318 319 /* 320 * Report current media status. 321 */ 322 static void 323 axen_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 324 { 325 struct axen_softc *sc = ifp->if_softc; 326 struct mii_data *mii = GET_MII(sc); 327 328 mii_pollstat(mii); 329 ifmr->ifm_active = mii->mii_media_active; 330 ifmr->ifm_status = mii->mii_media_status; 331 } 332 333 static void 334 axen_iff(struct axen_softc *sc) 335 { 336 struct ifnet *ifp = GET_IFP(sc); 337 struct ethercom *ec = &sc->axen_ec; 338 struct ether_multi *enm; 339 struct ether_multistep step; 340 uint32_t h = 0; 341 uint16_t rxmode; 342 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 343 uint16_t wval; 344 345 if (sc->axen_dying) 346 return; 347 348 rxmode = 0; 349 350 /* Enable receiver, set RX mode */ 351 axen_lock_mii(sc); 352 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 353 rxmode = le16toh(wval); 354 rxmode &= ~(AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST | 355 AXEN_RXCTL_PROMISC); 356 ifp->if_flags &= ~IFF_ALLMULTI; 357 358 /* 359 * Always accept broadcast frames. 360 * Always accept frames destined to our station address. 361 */ 362 rxmode |= AXEN_RXCTL_ACPT_BCAST; 363 364 if (ifp->if_flags & IFF_PROMISC || ec->ec_multicnt > 0 /* XXX */) { 365 ifp->if_flags |= IFF_ALLMULTI; 366 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST; 367 if (ifp->if_flags & IFF_PROMISC) 368 rxmode |= AXEN_RXCTL_PROMISC; 369 } else { 370 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_ACPT_PHY_MCAST; 371 372 /* now program new ones */ 373 ETHER_FIRST_MULTI(step, ec, enm); 374 while (enm != NULL) { 375 h = ether_crc32_be(enm->enm_addrlo, 376 ETHER_ADDR_LEN) >> 26; 377 hashtbl[h / 8] |= 1 << (h % 8); 378 ETHER_NEXT_MULTI(step, enm); 379 } 380 } 381 382 axen_cmd(sc, AXEN_CMD_MAC_WRITE_FILTER, 8, AXEN_FILTER_MULTI, hashtbl); 383 wval = htole16(rxmode); 384 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 385 axen_unlock_mii(sc); 386 } 387 388 static void 389 axen_reset(struct axen_softc *sc) 390 { 391 392 if (sc->axen_dying) 393 return; 394 /* XXX What to reset? */ 395 396 /* Wait a little while for the chip to get its brains in order. */ 397 DELAY(1000); 398 } 399 400 #if 0 /* not used */ 401 #define AXEN_GPIO_WRITE(x,y) do { \ 402 axen_cmd(sc, AXEN_CMD_WRITE_GPIO, 0, (x), NULL); \ 403 usbd_delay_ms(sc->axen_udev, (y)); \ 404 } while (/*CONSTCOND*/0) 405 406 static int 407 axen_ax88179_eeprom(struct axen_softc *sc, void *addr) 408 { 409 int i, retry; 410 uint8_t eeprom[20]; 411 uint16_t csum; 412 uint16_t buf; 413 414 for (i = 0; i < 6; i++) { 415 /* set eeprom address */ 416 buf = htole16(i); 417 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_ADDR, &buf); 418 419 /* set eeprom command */ 420 buf = htole16(AXEN_EEPROM_READ); 421 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_CMD, &buf); 422 423 /* check the value is ready */ 424 retry = 3; 425 do { 426 buf = htole16(AXEN_EEPROM_READ); 427 usbd_delay_ms(sc->axen_udev, 10); 428 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MAC_EEPROM_CMD, 429 &buf); 430 retry--; 431 if (retry < 0) 432 return EINVAL; 433 } while ((le16toh(buf) & 0xff) & AXEN_EEPROM_BUSY); 434 435 /* read data */ 436 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_EEPROM_READ, 437 &eeprom[i * 2]); 438 439 /* sanity check */ 440 if ((i == 0) && (eeprom[0] == 0xff)) 441 return EINVAL; 442 } 443 444 /* check checksum */ 445 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9]; 446 csum = (csum >> 8) + (csum & 0xff) + eeprom[10]; 447 if (csum != 0xff) { 448 printf("eeprom checksum mismatchi(0x%02x)\n", csum); 449 return EINVAL; 450 } 451 452 memcpy(addr, eeprom, ETHER_ADDR_LEN); 453 return 0; 454 } 455 #endif 456 457 static void 458 axen_ax88179_init(struct axen_softc *sc) 459 { 460 struct axen_qctrl qctrl; 461 uint16_t ctl, temp; 462 uint16_t wval; 463 uint8_t val; 464 465 axen_lock_mii(sc); 466 467 /* XXX: ? */ 468 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_UNK_05, &val); 469 DPRINTFN(5, ("AXEN_CMD_MAC_READ(0x05): 0x%02x\n", val)); 470 471 /* check AX88179 version, UA1 / UA2 */ 472 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_GENERAL_STATUS, &val); 473 /* UA1 */ 474 if (!(val & AXEN_GENERAL_STATUS_MASK)) { 475 sc->axen_rev = AXEN_REV_UA1; 476 DPRINTF(("AX88179 ver. UA1\n")); 477 } else { 478 sc->axen_rev = AXEN_REV_UA2; 479 DPRINTF(("AX88179 ver. UA2\n")); 480 } 481 482 /* power up ethernet PHY */ 483 wval = htole16(0); 484 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 485 486 wval = htole16(AXEN_PHYPWR_RSTCTL_IPRL); 487 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 488 usbd_delay_ms(sc->axen_udev, 200); 489 490 /* set clock mode */ 491 val = AXEN_PHYCLK_ACS | AXEN_PHYCLK_BCS; 492 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 493 usbd_delay_ms(sc->axen_udev, 100); 494 495 /* set monitor mode (disable) */ 496 val = AXEN_MONITOR_NONE; 497 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 498 499 /* enable auto detach */ 500 axen_cmd(sc, AXEN_CMD_EEPROM_READ, 2, AXEN_EEPROM_STAT, &wval); 501 temp = le16toh(wval); 502 DPRINTFN(2,("EEPROM0x43 = 0x%04x\n", temp)); 503 if (!(temp == 0xffff) && !(temp & 0x0100)) { 504 /* Enable auto detach bit */ 505 val = 0; 506 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 507 val = AXEN_PHYCLK_ULR; 508 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 509 usbd_delay_ms(sc->axen_udev, 100); 510 511 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_PHYPWR_RSTCTL, &wval); 512 ctl = le16toh(wval); 513 ctl |= AXEN_PHYPWR_RSTCTL_AUTODETACH; 514 wval = htole16(ctl); 515 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 516 usbd_delay_ms(sc->axen_udev, 200); 517 aprint_error_dev(sc->axen_dev, "enable auto detach (0x%04x)\n", 518 ctl); 519 } 520 521 /* bulkin queue setting */ 522 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_USB_UPLINK, &val); 523 switch (val) { 524 case AXEN_USB_FS: 525 DPRINTF(("uplink: USB1.1\n")); 526 qctrl.ctrl = 0x07; 527 qctrl.timer_low = 0xcc; 528 qctrl.timer_high = 0x4c; 529 qctrl.bufsize = AXEN_BUFSZ_LS - 1; 530 qctrl.ifg = 0x08; 531 break; 532 case AXEN_USB_HS: 533 DPRINTF(("uplink: USB2.0\n")); 534 qctrl.ctrl = 0x07; 535 qctrl.timer_low = 0x02; 536 qctrl.timer_high = 0xa0; 537 qctrl.bufsize = AXEN_BUFSZ_HS - 1; 538 qctrl.ifg = 0xff; 539 break; 540 case AXEN_USB_SS: 541 DPRINTF(("uplink: USB3.0\n")); 542 qctrl.ctrl = 0x07; 543 qctrl.timer_low = 0x4f; 544 qctrl.timer_high = 0x00; 545 qctrl.bufsize = AXEN_BUFSZ_SS - 1; 546 qctrl.ifg = 0xff; 547 break; 548 default: 549 aprint_error_dev(sc->axen_dev, "unknown uplink bus:0x%02x\n", 550 val); 551 axen_unlock_mii(sc); 552 return; 553 } 554 axen_cmd(sc, AXEN_CMD_MAC_SET_RXSR, 5, AXEN_RX_BULKIN_QCTRL, &qctrl); 555 556 /* 557 * set buffer high/low watermark to pause/resume. 558 * write 2byte will set high/log simultaneous with AXEN_PAUSE_HIGH. 559 * XXX: what is the best value? OSX driver uses 0x3c-0x4c as LOW-HIGH 560 * watermark parameters. 561 */ 562 val = 0x34; 563 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_LOW_WATERMARK, &val); 564 val = 0x52; 565 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_HIGH_WATERMARK, &val); 566 567 /* Set RX/TX configuration. */ 568 /* Offloadng enable */ 569 #ifdef AXEN_TOE 570 val = AXEN_RXCOE_IPv4 | AXEN_RXCOE_TCPv4 | AXEN_RXCOE_UDPv4 | 571 AXEN_RXCOE_TCPv6 | AXEN_RXCOE_UDPv6; 572 #else 573 val = AXEN_RXCOE_OFF; 574 #endif 575 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_RX_COE, &val); 576 577 #ifdef AXEN_TOE 578 val = AXEN_TXCOE_IPv4 | AXEN_TXCOE_TCPv4 | AXEN_TXCOE_UDPv4 | 579 AXEN_TXCOE_TCPv6 | AXEN_TXCOE_UDPv6; 580 #else 581 val = AXEN_TXCOE_OFF; 582 #endif 583 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_TX_COE, &val); 584 585 /* Set RX control register */ 586 ctl = AXEN_RXCTL_IPE | AXEN_RXCTL_DROPCRCERR | AXEN_RXCTL_AUTOB; 587 ctl |= AXEN_RXCTL_ACPT_PHY_MCAST | AXEN_RXCTL_ACPT_ALL_MCAST; 588 ctl |= AXEN_RXCTL_START; 589 wval = htole16(ctl); 590 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 591 592 /* set monitor mode (enable) */ 593 val = AXEN_MONITOR_PMETYPE | AXEN_MONITOR_PMEPOL | AXEN_MONITOR_RWMP; 594 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 595 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MONITOR_MODE, &val); 596 DPRINTF(("axen: Monitor mode = 0x%02x\n", val)); 597 598 /* set medium type */ 599 ctl = AXEN_MEDIUM_GIGA | AXEN_MEDIUM_FDX | AXEN_MEDIUM_ALWAYS_ONE | 600 AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN; 601 ctl |= AXEN_MEDIUM_RECV_EN; 602 wval = htole16(ctl); 603 DPRINTF(("axen: set to medium mode: 0x%04x\n", ctl)); 604 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 605 usbd_delay_ms(sc->axen_udev, 100); 606 607 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MEDIUM_STATUS, &wval); 608 DPRINTF(("axen: current medium mode: 0x%04x\n", le16toh(wval))); 609 610 axen_unlock_mii(sc); 611 612 #if 0 /* XXX: TBD.... */ 613 #define GMII_LED_ACTIVE 0x1a 614 #define GMII_PHY_PAGE_SEL 0x1e 615 #define GMII_PHY_PAGE_SEL 0x1f 616 #define GMII_PAGE_EXT 0x0007 617 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE_SEL, 618 GMII_PAGE_EXT); 619 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE, 620 0x002c); 621 #endif 622 623 #if 1 /* XXX: phy hack ? */ 624 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0005); 625 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x0C, 0x0000); 626 val = axen_miibus_readreg(sc->axen_dev, sc->axen_phyno, 0x0001); 627 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x01, 628 val | 0x0080); 629 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0000); 630 #endif 631 } 632 633 static int 634 axen_match(device_t parent, cfdata_t match, void *aux) 635 { 636 struct usb_attach_arg *uaa = aux; 637 638 return axen_lookup(uaa->vendor, uaa->product) != NULL ? 639 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 640 } 641 642 static void 643 axen_attach(device_t parent, device_t self, void *aux) 644 { 645 struct axen_softc *sc = device_private(self); 646 struct usb_attach_arg *uaa = aux; 647 struct usbd_device *dev = uaa->device; 648 usbd_status err; 649 usb_interface_descriptor_t *id; 650 usb_endpoint_descriptor_t *ed; 651 struct mii_data *mii; 652 uint8_t eaddr[ETHER_ADDR_LEN]; 653 char *devinfop; 654 const char *devname = device_xname(self); 655 struct ifnet *ifp; 656 int i, s; 657 658 aprint_naive("\n"); 659 aprint_normal("\n"); 660 661 sc->axen_dev = self; 662 sc->axen_udev = dev; 663 664 devinfop = usbd_devinfo_alloc(dev, 0); 665 aprint_normal_dev(self, "%s\n", devinfop); 666 usbd_devinfo_free(devinfop); 667 668 err = usbd_set_config_no(dev, AXEN_CONFIG_NO, 1); 669 if (err) { 670 aprint_error_dev(self, "failed to set configuration" 671 ", err=%s\n", usbd_errstr(err)); 672 return; 673 } 674 675 sc->axen_flags = axen_lookup(uaa->vendor, uaa->product)->axen_flags; 676 677 rw_init(&sc->axen_mii_lock); 678 usb_init_task(&sc->axen_tick_task, axen_tick_task, sc, 0); 679 680 err = usbd_device2interface_handle(dev, AXEN_IFACE_IDX,&sc->axen_iface); 681 if (err) { 682 aprint_error_dev(self, "getting interface handle failed\n"); 683 return; 684 } 685 686 sc->axen_product = uaa->product; 687 sc->axen_vendor = uaa->vendor; 688 689 id = usbd_get_interface_descriptor(sc->axen_iface); 690 691 /* XXX fix when USB3.0 HC is supported */ 692 /* decide on what our bufsize will be */ 693 sc->axen_bufsz = (sc->axen_udev->speed == USB_SPEED_HIGH) ? 694 AXEN_BUFSZ_HS * 1024 : AXEN_BUFSZ_LS * 1024; 695 696 /* Find endpoints. */ 697 for (i = 0; i < id->bNumEndpoints; i++) { 698 ed = usbd_interface2endpoint_descriptor(sc->axen_iface, i); 699 if (!ed) { 700 aprint_error_dev(self, "couldn't get ep %d\n", i); 701 return; 702 } 703 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 704 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 705 sc->axen_ed[AXEN_ENDPT_RX] = ed->bEndpointAddress; 706 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 707 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 708 sc->axen_ed[AXEN_ENDPT_TX] = ed->bEndpointAddress; 709 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 710 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 711 sc->axen_ed[AXEN_ENDPT_INTR] = ed->bEndpointAddress; 712 } 713 } 714 715 s = splnet(); 716 717 sc->axen_phyno = AXEN_PHY_ID; 718 DPRINTF(("%s: phyno %d\n", device_xname(self), sc->axen_phyno)); 719 720 /* 721 * Get station address. 722 */ 723 #if 0 /* read from eeprom */ 724 if (axen_ax88179_eeprom(sc, &eaddr)) { 725 printf("EEPROM checksum error\n"); 726 return; 727 } 728 #else /* use MAC command */ 729 axen_lock_mii(sc); 730 axen_cmd(sc, AXEN_CMD_MAC_READ_ETHER, 6, AXEN_CMD_MAC_NODE_ID, &eaddr); 731 axen_unlock_mii(sc); 732 #endif 733 axen_ax88179_init(sc); 734 735 /* 736 * An ASIX chip was detected. Inform the world. 737 */ 738 if (sc->axen_flags & AX178A) 739 aprint_normal_dev(self, "AX88178a\n"); 740 else if (sc->axen_flags & AX179) 741 aprint_normal_dev(self, "AX88179\n"); 742 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 743 744 /* Initialize interface info.*/ 745 746 ifp = &sc->sc_if; 747 ifp->if_softc = sc; 748 strlcpy(ifp->if_xname, devname, IFNAMSIZ); 749 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 750 ifp->if_ioctl = axen_ioctl; 751 ifp->if_start = axen_start; 752 ifp->if_init = axen_init; 753 ifp->if_stop = axen_stop; 754 ifp->if_watchdog = axen_watchdog; 755 756 IFQ_SET_READY(&ifp->if_snd); 757 758 sc->axen_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 759 #ifdef AXEN_TOE 760 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx | 761 IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx | 762 IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx | 763 IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_TCPv6_Tx | 764 IFCAP_CSUM_UDPv6_Rx | IFCAP_CSUM_UDPv6_Tx; 765 #endif 766 767 /* Initialize MII/media info. */ 768 mii = &sc->axen_mii; 769 mii->mii_ifp = ifp; 770 mii->mii_readreg = axen_miibus_readreg; 771 mii->mii_writereg = axen_miibus_writereg; 772 mii->mii_statchg = axen_miibus_statchg; 773 mii->mii_flags = MIIF_AUTOTSLEEP; 774 775 sc->axen_ec.ec_mii = mii; 776 ifmedia_init(&mii->mii_media, 0, axen_ifmedia_upd, axen_ifmedia_sts); 777 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 778 779 if (LIST_FIRST(&mii->mii_phys) == NULL) { 780 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 781 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 782 } else 783 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 784 785 /* Attach the interface. */ 786 if_attach(ifp); 787 ether_ifattach(ifp, eaddr); 788 rnd_attach_source(&sc->rnd_source, device_xname(sc->axen_dev), 789 RND_TYPE_NET, RND_FLAG_DEFAULT); 790 791 callout_init(&sc->axen_stat_ch, 0); 792 callout_setfunc(&sc->axen_stat_ch, axen_tick, sc); 793 794 sc->axen_attached = true; 795 splx(s); 796 797 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axen_udev,sc->axen_dev); 798 } 799 800 static int 801 axen_detach(device_t self, int flags) 802 { 803 struct axen_softc *sc = device_private(self); 804 struct ifnet *ifp = GET_IFP(sc); 805 int s; 806 807 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 808 809 /* Detached before attached finished, so just bail out. */ 810 if (!sc->axen_attached) 811 return 0; 812 813 sc->axen_dying = true; 814 815 /* 816 * Remove any pending tasks. They cannot be executing because they run 817 * in the same thread as detach. 818 */ 819 usb_rem_task(sc->axen_udev, &sc->axen_tick_task); 820 821 s = splusb(); 822 823 if (ifp->if_flags & IFF_RUNNING) 824 axen_stop(ifp, 1); 825 826 callout_destroy(&sc->axen_stat_ch); 827 rnd_detach_source(&sc->rnd_source); 828 mii_detach(&sc->axen_mii, MII_PHY_ANY, MII_OFFSET_ANY); 829 ifmedia_delete_instance(&sc->axen_mii.mii_media, IFM_INST_ANY); 830 ether_ifdetach(ifp); 831 if_detach(ifp); 832 833 #ifdef DIAGNOSTIC 834 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL || 835 sc->axen_ep[AXEN_ENDPT_RX] != NULL || 836 sc->axen_ep[AXEN_ENDPT_INTR] != NULL) 837 aprint_debug_dev(self, "detach has active endpoints\n"); 838 #endif 839 840 sc->axen_attached = false; 841 842 if (--sc->axen_refcnt >= 0) { 843 /* Wait for processes to go away. */ 844 usb_detach_waitold(sc->axen_dev); 845 } 846 splx(s); 847 848 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axen_udev,sc->axen_dev); 849 850 rw_destroy(&sc->axen_mii_lock); 851 852 return 0; 853 } 854 855 static int 856 axen_activate(device_t self, devact_t act) 857 { 858 struct axen_softc *sc = device_private(self); 859 struct ifnet *ifp = GET_IFP(sc); 860 861 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 862 863 switch (act) { 864 case DVACT_DEACTIVATE: 865 if_deactivate(ifp); 866 sc->axen_dying = true; 867 return 0; 868 default: 869 return EOPNOTSUPP; 870 } 871 } 872 873 static struct mbuf * 874 axen_newbuf(void) 875 { 876 struct mbuf *m; 877 878 MGETHDR(m, M_DONTWAIT, MT_DATA); 879 if (m == NULL) 880 return NULL; 881 882 MCLGET(m, M_DONTWAIT); 883 if (!(m->m_flags & M_EXT)) { 884 m_freem(m); 885 return NULL; 886 } 887 888 m->m_len = m->m_pkthdr.len = MCLBYTES; 889 m_adj(m, ETHER_ALIGN); 890 891 return m; 892 } 893 894 static int 895 axen_rx_list_init(struct axen_softc *sc) 896 { 897 struct axen_cdata *cd; 898 struct axen_chain *c; 899 int i; 900 901 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 902 903 cd = &sc->axen_cdata; 904 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 905 c = &cd->axen_rx_chain[i]; 906 c->axen_sc = sc; 907 c->axen_idx = i; 908 if (c->axen_xfer == NULL) { 909 c->axen_xfer = usbd_alloc_xfer(sc->axen_udev); 910 if (c->axen_xfer == NULL) 911 return ENOBUFS; 912 c->axen_buf = usbd_alloc_buffer(c->axen_xfer, 913 sc->axen_bufsz); 914 if (c->axen_buf == NULL) { 915 usbd_free_xfer(c->axen_xfer); 916 return ENOBUFS; 917 } 918 } 919 } 920 921 return 0; 922 } 923 924 static int 925 axen_tx_list_init(struct axen_softc *sc) 926 { 927 struct axen_cdata *cd; 928 struct axen_chain *c; 929 int i; 930 931 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 932 933 cd = &sc->axen_cdata; 934 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 935 c = &cd->axen_tx_chain[i]; 936 c->axen_sc = sc; 937 c->axen_idx = i; 938 if (c->axen_xfer == NULL) { 939 c->axen_xfer = usbd_alloc_xfer(sc->axen_udev); 940 if (c->axen_xfer == NULL) 941 return ENOBUFS; 942 c->axen_buf = usbd_alloc_buffer(c->axen_xfer, 943 sc->axen_bufsz); 944 if (c->axen_buf == NULL) { 945 usbd_free_xfer(c->axen_xfer); 946 return ENOBUFS; 947 } 948 } 949 } 950 951 return 0; 952 } 953 954 /* 955 * A frame has been uploaded: pass the resulting mbuf chain up to 956 * the higher level protocols. 957 */ 958 static void 959 axen_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 960 { 961 struct axen_chain *c = (struct axen_chain *)priv; 962 struct axen_softc *sc = c->axen_sc; 963 struct ifnet *ifp = GET_IFP(sc); 964 uint8_t *buf = c->axen_buf; 965 struct mbuf *m; 966 uint32_t total_len; 967 uint32_t rx_hdr, pkt_hdr; 968 uint32_t *hdr_p; 969 uint16_t hdr_offset, pkt_count; 970 size_t pkt_len; 971 size_t temp; 972 int s; 973 974 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 975 976 if (sc->axen_dying) 977 return; 978 979 if (!(ifp->if_flags & IFF_RUNNING)) 980 return; 981 982 if (status != USBD_NORMAL_COMPLETION) { 983 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 984 return; 985 if (usbd_ratecheck(&sc->axen_rx_notice)) { 986 aprint_error_dev(sc->axen_dev, "usb errors on rx: %s\n", 987 usbd_errstr(status)); 988 } 989 if (status == USBD_STALLED) 990 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_RX]); 991 goto done; 992 } 993 994 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 995 996 if (total_len < sizeof(pkt_hdr)) { 997 ifp->if_ierrors++; 998 goto done; 999 } 1000 1001 /* 1002 * buffer map 1003 * [packet #0]...[packet #n][pkt hdr#0]..[pkt hdr#n][recv_hdr] 1004 * each packet has 0xeeee as psuedo header.. 1005 */ 1006 hdr_p = (uint32_t *)(buf + total_len - sizeof(uint32_t)); 1007 rx_hdr = le32toh(*hdr_p); 1008 hdr_offset = (uint16_t)(rx_hdr >> 16); 1009 pkt_count = (uint16_t)(rx_hdr & 0xffff); 1010 1011 if (total_len > sc->axen_bufsz) { 1012 aprint_error_dev(sc->axen_dev, "rxeof: too large transfer\n"); 1013 goto done; 1014 } 1015 1016 /* sanity check */ 1017 if (hdr_offset > total_len) { 1018 ifp->if_ierrors++; 1019 usbd_delay_ms(sc->axen_udev, 100); 1020 goto done; 1021 } 1022 1023 /* point first packet header */ 1024 hdr_p = (uint32_t *)(buf + hdr_offset); 1025 1026 /* 1027 * ax88179 will pack multiple ip packet to a USB transaction. 1028 * process all of packets in the buffer 1029 */ 1030 1031 #if 1 /* XXX: paranoiac check. need to remove later */ 1032 #define AXEN_MAX_PACKED_PACKET 200 1033 if (pkt_count > AXEN_MAX_PACKED_PACKET) { 1034 DPRINTF(("%s: Too many packets (%d) in a transaction, discard.\n", 1035 device_xname(sc->axen_dev), pkt_count)); 1036 goto done; 1037 } 1038 #endif 1039 1040 do { 1041 if ((buf[0] != 0xee) || (buf[1] != 0xee)){ 1042 aprint_error_dev(sc->axen_dev, 1043 "invalid buffer(pkt#%d), continue\n", pkt_count); 1044 ifp->if_ierrors += pkt_count; 1045 goto done; 1046 } 1047 1048 pkt_hdr = le32toh(*hdr_p); 1049 pkt_len = (pkt_hdr >> 16) & 0x1fff; 1050 DPRINTFN(10, 1051 ("%s: rxeof: packet#%d, pkt_hdr 0x%08x, pkt_len %zu\n", 1052 device_xname(sc->axen_dev), pkt_count, pkt_hdr, pkt_len)); 1053 1054 if ((pkt_hdr & AXEN_RXHDR_CRC_ERR) || 1055 (pkt_hdr & AXEN_RXHDR_DROP_ERR)) { 1056 ifp->if_ierrors++; 1057 /* move to next pkt header */ 1058 DPRINTF(("%s: crc err (pkt#%d)\n", 1059 device_xname(sc->axen_dev), pkt_count)); 1060 goto nextpkt; 1061 } 1062 1063 /* process each packet */ 1064 /* allocate mbuf */ 1065 m = axen_newbuf(); 1066 if (m == NULL) { 1067 ifp->if_ierrors++; 1068 goto nextpkt; 1069 } 1070 1071 /* skip pseudo header (2byte) */ 1072 ifp->if_ipackets++; 1073 m->m_pkthdr.rcvif = ifp; 1074 m->m_pkthdr.len = m->m_len = pkt_len - 2; 1075 1076 #ifdef AXEN_TOE 1077 /* cheksum err */ 1078 if ((pkt_hdr & AXEN_RXHDR_L3CSUM_ERR) || 1079 (pkt_hdr & AXEN_RXHDR_L4CSUM_ERR)) { 1080 aprint_error_dev(sc->axen_dev, 1081 "checksum err (pkt#%d)\n", pkt_count); 1082 goto nextpkt; 1083 } else { 1084 m->m_pkthdr.csum_flags |= M_CSUM_IPv4; 1085 } 1086 1087 int l4_type = (pkt_hdr & AXEN_RXHDR_L4_TYPE_MASK) >> 1088 AXEN_RXHDR_L4_TYPE_OFFSET; 1089 1090 if ((l4_type == AXEN_RXHDR_L4_TYPE_TCP) || 1091 (l4_type == AXEN_RXHDR_L4_TYPE_UDP)) { 1092 m->m_pkthdr.csum_flags |= M_CSUM_TCPv4 | 1093 M_CSUM_UDPv4; /* XXX v6? */ 1094 } 1095 #endif 1096 1097 memcpy(mtod(m, char *), buf + 2, pkt_len - 2); 1098 1099 /* push the packet up */ 1100 s = splnet(); 1101 bpf_mtap(ifp, m); 1102 (*(ifp)->if_input)((ifp), (m)); 1103 splx(s); 1104 1105 nextpkt: 1106 /* 1107 * prepare next packet 1108 * as each packet will be aligned 8byte boundary, 1109 * need to fix up the start point of the buffer. 1110 */ 1111 temp = ((pkt_len + 7) & 0xfff8); 1112 buf = buf + temp; 1113 hdr_p++; 1114 pkt_count--; 1115 } while( pkt_count > 0); 1116 1117 done: 1118 /* clear buffer for next transaction */ 1119 memset(c->axen_buf, 0, sc->axen_bufsz); 1120 1121 /* Setup new transfer. */ 1122 usbd_setup_xfer(xfer, sc->axen_ep[AXEN_ENDPT_RX], 1123 c, c->axen_buf, sc->axen_bufsz, 1124 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1125 USBD_NO_TIMEOUT, axen_rxeof); 1126 usbd_transfer(xfer); 1127 1128 DPRINTFN(10,("%s: %s: start rx\n",device_xname(sc->axen_dev),__func__)); 1129 } 1130 1131 /* 1132 * A frame was downloaded to the chip. It's safe for us to clean up 1133 * the list buffers. 1134 */ 1135 static void 1136 axen_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 1137 { 1138 struct axen_chain *c = (struct axen_chain *)priv; 1139 struct axen_softc *sc = c->axen_sc; 1140 struct ifnet *ifp = GET_IFP(sc); 1141 int s; 1142 1143 if (sc->axen_dying) 1144 return; 1145 1146 s = splnet(); 1147 1148 if (status != USBD_NORMAL_COMPLETION) { 1149 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1150 splx(s); 1151 return; 1152 } 1153 ifp->if_oerrors++; 1154 aprint_error_dev(sc->axen_dev, "usb error on tx: %s\n", 1155 usbd_errstr(status)); 1156 if (status == USBD_STALLED) 1157 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_TX]); 1158 splx(s); 1159 return; 1160 } 1161 1162 ifp->if_timer = 0; 1163 ifp->if_flags &= ~IFF_OACTIVE; 1164 1165 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1166 axen_start(ifp); 1167 1168 ifp->if_opackets++; 1169 splx(s); 1170 } 1171 1172 static void 1173 axen_tick(void *xsc) 1174 { 1175 struct axen_softc *sc = xsc; 1176 1177 if (sc == NULL) 1178 return; 1179 1180 DPRINTFN(0xff,("%s: %s: enter\n", device_xname(sc->axen_dev),__func__)); 1181 1182 if (sc->axen_dying) 1183 return; 1184 1185 /* Perform periodic stuff in process context */ 1186 usb_add_task(sc->axen_udev, &sc->axen_tick_task, USB_TASKQ_DRIVER); 1187 } 1188 1189 static void 1190 axen_tick_task(void *xsc) 1191 { 1192 int s; 1193 struct axen_softc *sc; 1194 struct ifnet *ifp; 1195 struct mii_data *mii; 1196 1197 sc = xsc; 1198 1199 if (sc == NULL) 1200 return; 1201 1202 if (sc->axen_dying) 1203 return; 1204 1205 ifp = GET_IFP(sc); 1206 mii = GET_MII(sc); 1207 if (mii == NULL) 1208 return; 1209 1210 s = splnet(); 1211 1212 mii_tick(mii); 1213 if (sc->axen_link == 0 && 1214 (mii->mii_media_status & IFM_ACTIVE) != 0 && 1215 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 1216 DPRINTF(("%s: %s: got link\n", device_xname(sc->axen_dev), 1217 __func__)); 1218 sc->axen_link++; 1219 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1220 axen_start(ifp); 1221 } 1222 1223 callout_schedule(&sc->axen_stat_ch, hz); 1224 1225 splx(s); 1226 } 1227 1228 static int 1229 axen_encap(struct axen_softc *sc, struct mbuf *m, int idx) 1230 { 1231 struct ifnet *ifp = GET_IFP(sc); 1232 struct axen_chain *c; 1233 usbd_status err; 1234 struct axen_sframe_hdr hdr; 1235 int length, boundary; 1236 1237 c = &sc->axen_cdata.axen_tx_chain[idx]; 1238 1239 boundary = (sc->axen_udev->speed == USB_SPEED_HIGH) ? 512 : 64; 1240 1241 hdr.plen = htole32(m->m_pkthdr.len); 1242 hdr.gso = 0; /* disable segmentation offloading */ 1243 1244 memcpy(c->axen_buf, &hdr, sizeof(hdr)); 1245 length = sizeof(hdr); 1246 1247 m_copydata(m, 0, m->m_pkthdr.len, c->axen_buf + length); 1248 length += m->m_pkthdr.len; 1249 1250 if ((length % boundary) == 0) { 1251 hdr.plen = 0x0; 1252 hdr.gso |= 0x80008000; /* enable padding */ 1253 memcpy(c->axen_buf + length, &hdr, sizeof(hdr)); 1254 length += sizeof(hdr); 1255 } 1256 1257 usbd_setup_xfer(c->axen_xfer, sc->axen_ep[AXEN_ENDPT_TX], 1258 c, c->axen_buf, length, USBD_FORCE_SHORT_XFER | USBD_NO_COPY, 1259 10000, axen_txeof); 1260 1261 /* Transmit */ 1262 err = usbd_transfer(c->axen_xfer); 1263 if (err != USBD_IN_PROGRESS) { 1264 axen_stop(ifp, 0); 1265 return EIO; 1266 } 1267 1268 sc->axen_cdata.axen_tx_cnt++; 1269 1270 return 0; 1271 } 1272 1273 static void 1274 axen_start(struct ifnet *ifp) 1275 { 1276 struct axen_softc *sc; 1277 struct mbuf *m; 1278 1279 sc = ifp->if_softc; 1280 1281 if (sc->axen_link == 0) 1282 return; 1283 1284 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1285 return; 1286 1287 IFQ_POLL(&ifp->if_snd, m); 1288 if (m == NULL) 1289 return; 1290 1291 if (axen_encap(sc, m, 0)) { 1292 ifp->if_flags |= IFF_OACTIVE; 1293 return; 1294 } 1295 IFQ_DEQUEUE(&ifp->if_snd, m); 1296 1297 /* 1298 * If there's a BPF listener, bounce a copy of this frame 1299 * to him. 1300 */ 1301 bpf_mtap(ifp, m); 1302 m_freem(m); 1303 1304 ifp->if_flags |= IFF_OACTIVE; 1305 1306 /* 1307 * Set a timeout in case the chip goes out to lunch. 1308 */ 1309 ifp->if_timer = 5; 1310 } 1311 1312 static int 1313 axen_init(struct ifnet *ifp) 1314 { 1315 struct axen_softc *sc = ifp->if_softc; 1316 struct axen_chain *c; 1317 usbd_status err; 1318 int i, s; 1319 uint16_t rxmode; 1320 uint16_t wval; 1321 uint8_t bval; 1322 1323 s = splnet(); 1324 1325 if (ifp->if_flags & IFF_RUNNING) 1326 axen_stop(ifp, 0); 1327 1328 /* 1329 * Cancel pending I/O and free all RX/TX buffers. 1330 */ 1331 axen_reset(sc); 1332 1333 /* XXX: ? */ 1334 axen_lock_mii(sc); 1335 bval = 0x01; 1336 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_UNK_28, &bval); 1337 axen_unlock_mii(sc); 1338 1339 /* Init RX ring. */ 1340 if (axen_rx_list_init(sc) == ENOBUFS) { 1341 aprint_error_dev(sc->axen_dev, "rx list init failed\n"); 1342 axen_unlock_mii(sc); 1343 splx(s); 1344 return ENOBUFS; 1345 } 1346 1347 /* Init TX ring. */ 1348 if (axen_tx_list_init(sc) == ENOBUFS) { 1349 aprint_error_dev(sc->axen_dev, "tx list init failed\n"); 1350 axen_unlock_mii(sc); 1351 splx(s); 1352 return ENOBUFS; 1353 } 1354 1355 /* Program promiscuous mode and multicast filters. */ 1356 axen_iff(sc); 1357 1358 /* Enable receiver, set RX mode */ 1359 axen_lock_mii(sc); 1360 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 1361 rxmode = le16toh(wval); 1362 rxmode |= AXEN_RXCTL_START; 1363 wval = htole16(rxmode); 1364 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 1365 axen_unlock_mii(sc); 1366 1367 /* Open RX and TX pipes. */ 1368 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_RX], 1369 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_RX]); 1370 if (err) { 1371 aprint_error_dev(sc->axen_dev, "open rx pipe failed: %s\n", 1372 usbd_errstr(err)); 1373 splx(s); 1374 return EIO; 1375 } 1376 1377 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_TX], 1378 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_TX]); 1379 if (err) { 1380 aprint_error_dev(sc->axen_dev, "open tx pipe failed: %s\n", 1381 usbd_errstr(err)); 1382 splx(s); 1383 return EIO; 1384 } 1385 1386 /* Start up the receive pipe. */ 1387 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1388 c = &sc->axen_cdata.axen_rx_chain[i]; 1389 usbd_setup_xfer(c->axen_xfer, sc->axen_ep[AXEN_ENDPT_RX], 1390 c, c->axen_buf, sc->axen_bufsz, 1391 USBD_SHORT_XFER_OK | USBD_NO_COPY, 1392 USBD_NO_TIMEOUT, axen_rxeof); 1393 usbd_transfer(c->axen_xfer); 1394 } 1395 1396 ifp->if_flags |= IFF_RUNNING; 1397 ifp->if_flags &= ~IFF_OACTIVE; 1398 1399 splx(s); 1400 1401 callout_schedule(&sc->axen_stat_ch, hz); 1402 return 0; 1403 } 1404 1405 static int 1406 axen_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1407 { 1408 struct axen_softc *sc = ifp->if_softc; 1409 int s; 1410 int error = 0; 1411 1412 s = splnet(); 1413 1414 switch (cmd) { 1415 case SIOCSIFFLAGS: 1416 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1417 break; 1418 1419 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 1420 case IFF_RUNNING: 1421 axen_stop(ifp, 1); 1422 break; 1423 case IFF_UP: 1424 axen_init(ifp); 1425 break; 1426 case IFF_UP | IFF_RUNNING: 1427 if ((ifp->if_flags ^ sc->axen_if_flags) == IFF_PROMISC) 1428 axen_iff(sc); 1429 else 1430 axen_init(ifp); 1431 break; 1432 } 1433 sc->axen_if_flags = ifp->if_flags; 1434 break; 1435 1436 default: 1437 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 1438 break; 1439 1440 error = 0; 1441 1442 if (cmd == SIOCADDMULTI || cmd == SIOCDELMULTI) 1443 axen_iff(sc); 1444 break; 1445 } 1446 splx(s); 1447 1448 return error; 1449 } 1450 1451 static void 1452 axen_watchdog(struct ifnet *ifp) 1453 { 1454 struct axen_softc *sc; 1455 struct axen_chain *c; 1456 usbd_status stat; 1457 int s; 1458 1459 sc = ifp->if_softc; 1460 1461 ifp->if_oerrors++; 1462 aprint_error_dev(sc->axen_dev, "watchdog timeout\n"); 1463 1464 s = splusb(); 1465 c = &sc->axen_cdata.axen_tx_chain[0]; 1466 usbd_get_xfer_status(c->axen_xfer, NULL, NULL, NULL, &stat); 1467 axen_txeof(c->axen_xfer, c, stat); 1468 1469 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1470 axen_start(ifp); 1471 splx(s); 1472 } 1473 1474 /* 1475 * Stop the adapter and free any mbufs allocated to the 1476 * RX and TX lists. 1477 */ 1478 static void 1479 axen_stop(struct ifnet *ifp, int disable) 1480 { 1481 struct axen_softc *sc = ifp->if_softc; 1482 usbd_status err; 1483 int i; 1484 1485 axen_reset(sc); 1486 1487 ifp->if_timer = 0; 1488 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1489 1490 callout_stop(&sc->axen_stat_ch); 1491 1492 /* Stop transfers. */ 1493 if (sc->axen_ep[AXEN_ENDPT_RX] != NULL) { 1494 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1495 if (err) { 1496 aprint_error_dev(sc->axen_dev, 1497 "abort rx pipe failed: %s\n", usbd_errstr(err)); 1498 1499 } 1500 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1501 if (err) { 1502 aprint_error_dev(sc->axen_dev, 1503 "close rx pipe failed: %s\n", usbd_errstr(err)); 1504 } 1505 sc->axen_ep[AXEN_ENDPT_RX] = NULL; 1506 } 1507 1508 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL) { 1509 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1510 if (err) { 1511 aprint_error_dev(sc->axen_dev, 1512 "abort tx pipe failed: %s\n", usbd_errstr(err)); 1513 } 1514 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1515 if (err) { 1516 aprint_error_dev(sc->axen_dev, 1517 "close tx pipe failed: %s\n", usbd_errstr(err)); 1518 } 1519 sc->axen_ep[AXEN_ENDPT_TX] = NULL; 1520 } 1521 1522 if (sc->axen_ep[AXEN_ENDPT_INTR] != NULL) { 1523 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1524 if (err) { 1525 aprint_error_dev(sc->axen_dev, 1526 "abort intr pipe failed: %s\n", usbd_errstr(err)); 1527 } 1528 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1529 if (err) { 1530 aprint_error_dev(sc->axen_dev, 1531 "close intr pipe failed: %s\n", usbd_errstr(err)); 1532 } 1533 sc->axen_ep[AXEN_ENDPT_INTR] = NULL; 1534 } 1535 1536 /* Free RX resources. */ 1537 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1538 if (sc->axen_cdata.axen_rx_chain[i].axen_xfer != NULL) { 1539 usbd_free_xfer(sc->axen_cdata.axen_rx_chain[i].axen_xfer); 1540 sc->axen_cdata.axen_rx_chain[i].axen_xfer = NULL; 1541 } 1542 } 1543 1544 /* Free TX resources. */ 1545 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 1546 if (sc->axen_cdata.axen_tx_chain[i].axen_xfer != NULL) { 1547 usbd_free_xfer(sc->axen_cdata.axen_tx_chain[i].axen_xfer); 1548 sc->axen_cdata.axen_tx_chain[i].axen_xfer = NULL; 1549 } 1550 } 1551 1552 sc->axen_link = 0; 1553 } 1554 1555 MODULE(MODULE_CLASS_DRIVER, if_axen, "bpf"); 1556 1557 #ifdef _MODULE 1558 #include "ioconf.c" 1559 #endif 1560 1561 static int 1562 if_axen_modcmd(modcmd_t cmd, void *aux) 1563 { 1564 int error = 0; 1565 1566 switch (cmd) { 1567 case MODULE_CMD_INIT: 1568 #ifdef _MODULE 1569 error = config_init_component(cfdriver_ioconf_axen, 1570 cfattach_ioconf_axen, cfdata_ioconf_axen); 1571 #endif 1572 return error; 1573 case MODULE_CMD_FINI: 1574 #ifdef _MODULE 1575 error = config_fini_component(cfdriver_ioconf_axen, 1576 cfattach_ioconf_axen, cfdata_ioconf_axen); 1577 #endif 1578 return error; 1579 default: 1580 return ENOTTY; 1581 } 1582 } 1583
Indexes created Mon Oct 13 21:09:55 GMT 2025