if_axen.c revision 1.27
1 /* $NetBSD: if_axen.c,v 1.27 2019/02/06 07:35:46 rin 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 1.27 2019/02/06 07:35:46 rin Exp $"); 27 28 #ifdef _KERNEL_OPT 29 #include "opt_inet.h" 30 #include "opt_usb.h" 31 #endif 32 33 #include <sys/param.h> 34 #include <sys/bus.h> 35 #include <sys/device.h> 36 #include <sys/kernel.h> 37 #include <sys/mbuf.h> 38 #include <sys/module.h> 39 #include <sys/rwlock.h> 40 #include <sys/socket.h> 41 #include <sys/sockio.h> 42 #include <sys/systm.h> 43 44 #include <sys/rndsource.h> 45 46 #include <net/if.h> 47 #include <net/if_dl.h> 48 #include <net/if_ether.h> 49 #include <net/if_media.h> 50 51 #include <net/bpf.h> 52 53 #include <dev/mii/mii.h> 54 #include <dev/mii/miivar.h> 55 56 #include <dev/usb/usb.h> 57 #include <dev/usb/usbdi.h> 58 #include <dev/usb/usbdi_util.h> 59 #include <dev/usb/usbdivar.h> 60 #include <dev/usb/usbdevs.h> 61 62 #include <dev/usb/if_axenreg.h> 63 64 #ifdef AXEN_DEBUG 65 #define DPRINTF(x) do { if (axendebug) printf x; } while (/*CONSTCOND*/0) 66 #define DPRINTFN(n,x) do { if (axendebug >= (n)) printf x; } while (/*CONSTCOND*/0) 67 int axendebug = 0; 68 #else 69 #define DPRINTF(x) 70 #define DPRINTFN(n,x) 71 #endif 72 73 /* 74 * Various supported device vendors/products. 75 */ 76 static const struct axen_type axen_devs[] = { 77 #if 0 /* not tested */ 78 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88178A}, AX178A }, 79 #endif 80 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88179}, AX179 }, 81 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUB1312}, 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(struct usbd_xfer *, void *, usbd_status); 99 static int axen_csum_flags_rx(struct ifnet *, uint32_t); 100 static void axen_txeof(struct usbd_xfer *, void *, usbd_status); 101 static void axen_tick(void *); 102 static void axen_tick_task(void *); 103 static void axen_start(struct ifnet *); 104 static int axen_ioctl(struct ifnet *, u_long, void *); 105 static int axen_init(struct ifnet *); 106 static void axen_stop(struct ifnet *, int); 107 static void axen_watchdog(struct ifnet *); 108 static int axen_miibus_readreg(device_t, int, int, uint16_t *); 109 static int axen_miibus_writereg(device_t, int, int, uint16_t); 110 static void axen_miibus_statchg(struct ifnet *); 111 static int axen_cmd(struct axen_softc *, int, int, int, void *); 112 static int axen_ifmedia_upd(struct ifnet *); 113 static void axen_ifmedia_sts(struct ifnet *, struct ifmediareq *); 114 static void axen_reset(struct axen_softc *); 115 #if 0 116 static int axen_ax88179_eeprom(struct axen_softc *, void *); 117 #endif 118 119 static void axen_iff(struct axen_softc *); 120 static void axen_lock_mii(struct axen_softc *); 121 static void axen_unlock_mii(struct axen_softc *); 122 123 static void axen_ax88179_init(struct axen_softc *); 124 static void axen_setcoe(struct axen_softc *); 125 126 /* Get exclusive access to the MII registers */ 127 static void 128 axen_lock_mii(struct axen_softc *sc) 129 { 130 131 sc->axen_refcnt++; 132 rw_enter(&sc->axen_mii_lock, RW_WRITER); 133 } 134 135 static void 136 axen_unlock_mii(struct axen_softc *sc) 137 { 138 139 rw_exit(&sc->axen_mii_lock); 140 if (--sc->axen_refcnt < 0) 141 usb_detach_wakeupold(sc->axen_dev); 142 } 143 144 static int 145 axen_cmd(struct axen_softc *sc, int cmd, int index, int val, void *buf) 146 { 147 usb_device_request_t req; 148 usbd_status err; 149 150 KASSERT(rw_lock_held(&sc->axen_mii_lock)); 151 152 if (sc->axen_dying) 153 return 0; 154 155 if (AXEN_CMD_DIR(cmd)) 156 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 157 else 158 req.bmRequestType = UT_READ_VENDOR_DEVICE; 159 req.bRequest = AXEN_CMD_CMD(cmd); 160 USETW(req.wValue, val); 161 USETW(req.wIndex, index); 162 USETW(req.wLength, AXEN_CMD_LEN(cmd)); 163 164 err = usbd_do_request(sc->axen_udev, &req, buf); 165 DPRINTFN(5, ("axen_cmd: cmd 0x%04x val 0x%04x len %d\n", 166 cmd, val, AXEN_CMD_LEN(cmd))); 167 168 if (err) { 169 DPRINTF(("axen_cmd err: cmd: %d, error: %d\n", cmd, err)); 170 return -1; 171 } 172 173 return 0; 174 } 175 176 static int 177 axen_miibus_readreg(device_t dev, int phy, int reg, uint16_t *val) 178 { 179 struct axen_softc *sc = device_private(dev); 180 usbd_status err; 181 uint16_t data; 182 183 if (sc->axen_dying) { 184 DPRINTF(("axen: dying\n")); 185 return -1; 186 } 187 188 if (sc->axen_phyno != phy) 189 return -1; 190 191 axen_lock_mii(sc); 192 err = axen_cmd(sc, AXEN_CMD_MII_READ_REG, reg, phy, &data); 193 axen_unlock_mii(sc); 194 195 if (err) { 196 aprint_error_dev(sc->axen_dev, "read PHY failed\n"); 197 return err; 198 } 199 200 *val = le16toh(data); 201 DPRINTFN(2,("axen_miibus_readreg: phy 0x%x reg 0x%x val 0x%hx\n", 202 phy, reg, *val)); 203 204 if (reg == MII_BMSR) { 205 *val &= ~BMSR_EXTCAP; 206 } 207 208 return 0; 209 } 210 211 static int 212 axen_miibus_writereg(device_t dev, int phy, int reg, uint16_t val) 213 { 214 struct axen_softc *sc = device_private(dev); 215 usbd_status err; 216 uint16_t uval; 217 218 if (sc->axen_dying) 219 return -1; 220 221 if (sc->axen_phyno != phy) 222 return -1; 223 224 uval = htole16(val); 225 axen_lock_mii(sc); 226 err = axen_cmd(sc, AXEN_CMD_MII_WRITE_REG, reg, phy, &uval); 227 axen_unlock_mii(sc); 228 DPRINTFN(2, ("axen_miibus_writereg: phy 0x%x reg 0x%x val 0x%04hx\n", 229 phy, reg, val)); 230 231 if (err) { 232 aprint_error_dev(sc->axen_dev, "write PHY failed\n"); 233 return err; 234 } 235 236 return 0; 237 } 238 239 static void 240 axen_miibus_statchg(struct ifnet *ifp) 241 { 242 struct axen_softc *sc = ifp->if_softc; 243 struct mii_data *mii = GET_MII(sc); 244 int err; 245 uint16_t val; 246 uint16_t wval; 247 248 sc->axen_link = 0; 249 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 250 (IFM_ACTIVE | IFM_AVALID)) { 251 switch (IFM_SUBTYPE(mii->mii_media_active)) { 252 case IFM_10_T: 253 case IFM_100_TX: 254 sc->axen_link++; 255 break; 256 case IFM_1000_T: 257 sc->axen_link++; 258 break; 259 default: 260 break; 261 } 262 } 263 264 /* Lost link, do nothing. */ 265 if (sc->axen_link == 0) 266 return; 267 268 val = 0; 269 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 270 val |= AXEN_MEDIUM_FDX; 271 272 val |= AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN | 273 AXEN_MEDIUM_RECV_EN; 274 switch (IFM_SUBTYPE(mii->mii_media_active)) { 275 case IFM_1000_T: 276 val |= AXEN_MEDIUM_GIGA | AXEN_MEDIUM_EN_125MHZ; 277 break; 278 case IFM_100_TX: 279 val |= AXEN_MEDIUM_PS; 280 break; 281 case IFM_10_T: 282 /* doesn't need to be handled */ 283 break; 284 } 285 286 DPRINTF(("axen_miibus_statchg: val=0x%x\n", val)); 287 wval = htole16(val); 288 axen_lock_mii(sc); 289 err = axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 290 axen_unlock_mii(sc); 291 if (err) { 292 aprint_error_dev(sc->axen_dev, "media change failed\n"); 293 return; 294 } 295 } 296 297 /* 298 * Set media options. 299 */ 300 static int 301 axen_ifmedia_upd(struct ifnet *ifp) 302 { 303 struct axen_softc *sc = ifp->if_softc; 304 struct mii_data *mii = GET_MII(sc); 305 int rc; 306 307 sc->axen_link = 0; 308 309 if (mii->mii_instance) { 310 struct mii_softc *miisc; 311 312 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 313 mii_phy_reset(miisc); 314 } 315 316 if ((rc = mii_mediachg(mii)) == ENXIO) 317 return 0; 318 return rc; 319 } 320 321 /* 322 * Report current media status. 323 */ 324 static void 325 axen_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 326 { 327 struct axen_softc *sc = ifp->if_softc; 328 struct mii_data *mii = GET_MII(sc); 329 330 mii_pollstat(mii); 331 ifmr->ifm_active = mii->mii_media_active; 332 ifmr->ifm_status = mii->mii_media_status; 333 } 334 335 static void 336 axen_iff(struct axen_softc *sc) 337 { 338 struct ifnet *ifp = GET_IFP(sc); 339 struct ethercom *ec = &sc->axen_ec; 340 struct ether_multi *enm; 341 struct ether_multistep step; 342 uint32_t h = 0; 343 uint16_t rxmode; 344 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 345 uint16_t wval; 346 347 if (sc->axen_dying) 348 return; 349 350 rxmode = 0; 351 352 /* Enable receiver, set RX mode */ 353 axen_lock_mii(sc); 354 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 355 rxmode = le16toh(wval); 356 rxmode &= ~(AXEN_RXCTL_ACPT_ALL_MCAST | AXEN_RXCTL_PROMISC | 357 AXEN_RXCTL_ACPT_MCAST); 358 ifp->if_flags &= ~IFF_ALLMULTI; 359 360 if (ifp->if_flags & IFF_PROMISC) { 361 DPRINTF(("%s: promisc\n", device_xname(sc->axen_dev))); 362 rxmode |= AXEN_RXCTL_PROMISC; 363 allmulti: ifp->if_flags |= IFF_ALLMULTI; 364 rxmode |= AXEN_RXCTL_ACPT_ALL_MCAST 365 /* | AXEN_RXCTL_ACPT_PHY_MCAST */; 366 } else { 367 /* now program new ones */ 368 DPRINTF(("%s: initializing hash table\n", 369 device_xname(sc->axen_dev))); 370 ETHER_FIRST_MULTI(step, ec, enm); 371 while (enm != NULL) { 372 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 373 ETHER_ADDR_LEN)) { 374 DPRINTF(("%s: allmulti\n", 375 device_xname(sc->axen_dev))); 376 memset(hashtbl, 0, sizeof(hashtbl)); 377 goto allmulti; 378 } 379 h = ether_crc32_be(enm->enm_addrlo, 380 ETHER_ADDR_LEN) >> 26; 381 hashtbl[h / 8] |= 1 << (h % 8); 382 DPRINTF(("%s: %s added\n", 383 device_xname(sc->axen_dev), 384 ether_sprintf(enm->enm_addrlo))); 385 ETHER_NEXT_MULTI(step, enm); 386 } 387 rxmode |= AXEN_RXCTL_ACPT_MCAST; 388 } 389 390 axen_cmd(sc, AXEN_CMD_MAC_WRITE_FILTER, 8, AXEN_FILTER_MULTI, hashtbl); 391 wval = htole16(rxmode); 392 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 393 axen_unlock_mii(sc); 394 } 395 396 static void 397 axen_reset(struct axen_softc *sc) 398 { 399 400 if (sc->axen_dying) 401 return; 402 /* XXX What to reset? */ 403 404 /* Wait a little while for the chip to get its brains in order. */ 405 DELAY(1000); 406 } 407 408 #if 0 /* not used */ 409 #define AXEN_GPIO_WRITE(x,y) do { \ 410 axen_cmd(sc, AXEN_CMD_WRITE_GPIO, 0, (x), NULL); \ 411 usbd_delay_ms(sc->axen_udev, (y)); \ 412 } while (/*CONSTCOND*/0) 413 414 static int 415 axen_ax88179_eeprom(struct axen_softc *sc, void *addr) 416 { 417 int i, retry; 418 uint8_t eeprom[20]; 419 uint16_t csum; 420 uint16_t buf; 421 422 for (i = 0; i < 6; i++) { 423 /* set eeprom address */ 424 buf = htole16(i); 425 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_ADDR, &buf); 426 427 /* set eeprom command */ 428 buf = htole16(AXEN_EEPROM_READ); 429 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MAC_EEPROM_CMD, &buf); 430 431 /* check the value is ready */ 432 retry = 3; 433 do { 434 buf = htole16(AXEN_EEPROM_READ); 435 usbd_delay_ms(sc->axen_udev, 10); 436 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MAC_EEPROM_CMD, 437 &buf); 438 retry--; 439 if (retry < 0) 440 return EINVAL; 441 } while ((le16toh(buf) & 0xff) & AXEN_EEPROM_BUSY); 442 443 /* read data */ 444 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_EEPROM_READ, 445 &eeprom[i * 2]); 446 447 /* sanity check */ 448 if ((i == 0) && (eeprom[0] == 0xff)) 449 return EINVAL; 450 } 451 452 /* check checksum */ 453 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9]; 454 csum = (csum >> 8) + (csum & 0xff) + eeprom[10]; 455 if (csum != 0xff) { 456 printf("eeprom checksum mismatchi(0x%02x)\n", csum); 457 return EINVAL; 458 } 459 460 memcpy(addr, eeprom, ETHER_ADDR_LEN); 461 return 0; 462 } 463 #endif 464 465 static void 466 axen_ax88179_init(struct axen_softc *sc) 467 { 468 struct axen_qctrl qctrl; 469 uint16_t ctl, temp; 470 uint16_t wval; 471 uint8_t val; 472 473 axen_lock_mii(sc); 474 475 /* XXX: ? */ 476 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_UNK_05, &val); 477 DPRINTFN(5, ("AXEN_CMD_MAC_READ(0x05): 0x%02x\n", val)); 478 479 /* check AX88179 version, UA1 / UA2 */ 480 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_GENERAL_STATUS, &val); 481 /* UA1 */ 482 if (!(val & AXEN_GENERAL_STATUS_MASK)) { 483 sc->axen_rev = AXEN_REV_UA1; 484 DPRINTF(("AX88179 ver. UA1\n")); 485 } else { 486 sc->axen_rev = AXEN_REV_UA2; 487 DPRINTF(("AX88179 ver. UA2\n")); 488 } 489 490 /* power up ethernet PHY */ 491 wval = htole16(0); 492 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 493 494 wval = htole16(AXEN_PHYPWR_RSTCTL_IPRL); 495 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 496 usbd_delay_ms(sc->axen_udev, 200); 497 498 /* set clock mode */ 499 val = AXEN_PHYCLK_ACS | AXEN_PHYCLK_BCS; 500 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 501 usbd_delay_ms(sc->axen_udev, 100); 502 503 /* set monitor mode (disable) */ 504 val = AXEN_MONITOR_NONE; 505 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 506 507 /* enable auto detach */ 508 axen_cmd(sc, AXEN_CMD_EEPROM_READ, 2, AXEN_EEPROM_STAT, &wval); 509 temp = le16toh(wval); 510 DPRINTFN(2,("EEPROM0x43 = 0x%04x\n", temp)); 511 if (!(temp == 0xffff) && !(temp & 0x0100)) { 512 /* Enable auto detach bit */ 513 val = 0; 514 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 515 val = AXEN_PHYCLK_ULR; 516 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PHYCLK, &val); 517 usbd_delay_ms(sc->axen_udev, 100); 518 519 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_PHYPWR_RSTCTL, &wval); 520 ctl = le16toh(wval); 521 ctl |= AXEN_PHYPWR_RSTCTL_AUTODETACH; 522 wval = htole16(ctl); 523 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_PHYPWR_RSTCTL, &wval); 524 usbd_delay_ms(sc->axen_udev, 200); 525 aprint_error_dev(sc->axen_dev, "enable auto detach (0x%04x)\n", 526 ctl); 527 } 528 529 /* bulkin queue setting */ 530 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_USB_UPLINK, &val); 531 switch (val) { 532 case AXEN_USB_FS: 533 DPRINTF(("uplink: USB1.1\n")); 534 qctrl.ctrl = 0x07; 535 qctrl.timer_low = 0xcc; 536 qctrl.timer_high = 0x4c; 537 qctrl.bufsize = AXEN_BUFSZ_LS - 1; 538 qctrl.ifg = 0x08; 539 break; 540 case AXEN_USB_HS: 541 DPRINTF(("uplink: USB2.0\n")); 542 qctrl.ctrl = 0x07; 543 qctrl.timer_low = 0x02; 544 qctrl.timer_high = 0xa0; 545 qctrl.bufsize = AXEN_BUFSZ_HS - 1; 546 qctrl.ifg = 0xff; 547 break; 548 case AXEN_USB_SS: 549 DPRINTF(("uplink: USB3.0\n")); 550 qctrl.ctrl = 0x07; 551 qctrl.timer_low = 0x4f; 552 qctrl.timer_high = 0x00; 553 qctrl.bufsize = AXEN_BUFSZ_SS - 1; 554 qctrl.ifg = 0xff; 555 break; 556 default: 557 aprint_error_dev(sc->axen_dev, "unknown uplink bus:0x%02x\n", 558 val); 559 axen_unlock_mii(sc); 560 return; 561 } 562 axen_cmd(sc, AXEN_CMD_MAC_SET_RXSR, 5, AXEN_RX_BULKIN_QCTRL, &qctrl); 563 564 /* 565 * set buffer high/low watermark to pause/resume. 566 * write 2byte will set high/log simultaneous with AXEN_PAUSE_HIGH. 567 * XXX: what is the best value? OSX driver uses 0x3c-0x4c as LOW-HIGH 568 * watermark parameters. 569 */ 570 val = 0x34; 571 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_LOW_WATERMARK, &val); 572 val = 0x52; 573 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_PAUSE_HIGH_WATERMARK, &val); 574 575 /* Set RX/TX configuration. */ 576 /* Set RX control register */ 577 ctl = AXEN_RXCTL_IPE | AXEN_RXCTL_DROPCRCERR | AXEN_RXCTL_AUTOB; 578 wval = htole16(ctl); 579 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 580 581 /* set monitor mode (enable) */ 582 val = AXEN_MONITOR_PMETYPE | AXEN_MONITOR_PMEPOL | AXEN_MONITOR_RWMP; 583 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_MONITOR_MODE, &val); 584 axen_cmd(sc, AXEN_CMD_MAC_READ, 1, AXEN_MONITOR_MODE, &val); 585 DPRINTF(("axen: Monitor mode = 0x%02x\n", val)); 586 587 /* set medium type */ 588 ctl = AXEN_MEDIUM_GIGA | AXEN_MEDIUM_FDX | AXEN_MEDIUM_EN_125MHZ | 589 AXEN_MEDIUM_RXFLOW_CTRL_EN | AXEN_MEDIUM_TXFLOW_CTRL_EN | 590 AXEN_MEDIUM_RECV_EN; 591 wval = htole16(ctl); 592 DPRINTF(("axen: set to medium mode: 0x%04x\n", ctl)); 593 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MEDIUM_STATUS, &wval); 594 usbd_delay_ms(sc->axen_udev, 100); 595 596 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MEDIUM_STATUS, &wval); 597 DPRINTF(("axen: current medium mode: 0x%04x\n", le16toh(wval))); 598 599 axen_unlock_mii(sc); 600 601 #if 0 /* XXX: TBD.... */ 602 #define GMII_LED_ACTIVE 0x1a 603 #define GMII_PHY_PAGE_SEL 0x1e 604 #define GMII_PHY_PAGE_SEL 0x1f 605 #define GMII_PAGE_EXT 0x0007 606 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE_SEL, 607 GMII_PAGE_EXT); 608 axen_miibus_writereg(&sc->axen_dev, sc->axen_phyno, GMII_PHY_PAGE, 609 0x002c); 610 #endif 611 612 #if 1 /* XXX: phy hack ? */ 613 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0005); 614 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x0C, 0x0000); 615 axen_miibus_readreg(sc->axen_dev, sc->axen_phyno, 0x0001, &wval); 616 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x01, 617 wval | 0x0080); 618 axen_miibus_writereg(sc->axen_dev, sc->axen_phyno, 0x1F, 0x0000); 619 #endif 620 } 621 622 static void 623 axen_setcoe(struct axen_softc *sc) 624 { 625 struct ifnet *ifp = GET_IFP(sc); 626 uint64_t enabled = ifp->if_capenable; 627 uint8_t val; 628 629 axen_lock_mii(sc); 630 631 val = AXEN_RXCOE_OFF; 632 if (enabled & IFCAP_CSUM_IPv4_Rx) 633 val |= AXEN_RXCOE_IPv4; 634 if (enabled & IFCAP_CSUM_TCPv4_Rx) 635 val |= AXEN_RXCOE_TCPv4; 636 if (enabled & IFCAP_CSUM_UDPv4_Rx) 637 val |= AXEN_RXCOE_UDPv4; 638 if (enabled & IFCAP_CSUM_TCPv6_Rx) 639 val |= AXEN_RXCOE_TCPv6; 640 if (enabled & IFCAP_CSUM_UDPv6_Rx) 641 val |= AXEN_RXCOE_UDPv6; 642 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_RX_COE, &val); 643 644 val = AXEN_TXCOE_OFF; 645 if (enabled & IFCAP_CSUM_IPv4_Tx) 646 val |= AXEN_TXCOE_IPv4; 647 if (enabled & IFCAP_CSUM_TCPv4_Tx) 648 val |= AXEN_TXCOE_TCPv4; 649 if (enabled & IFCAP_CSUM_UDPv4_Tx) 650 val |= AXEN_TXCOE_UDPv4; 651 if (enabled & IFCAP_CSUM_TCPv6_Tx) 652 val |= AXEN_TXCOE_TCPv6; 653 if (enabled & IFCAP_CSUM_UDPv6_Tx) 654 val |= AXEN_TXCOE_UDPv6; 655 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_TX_COE, &val); 656 657 axen_unlock_mii(sc); 658 } 659 660 static int 661 axen_match(device_t parent, cfdata_t match, void *aux) 662 { 663 struct usb_attach_arg *uaa = aux; 664 665 return axen_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 666 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 667 } 668 669 static void 670 axen_attach(device_t parent, device_t self, void *aux) 671 { 672 struct axen_softc *sc = device_private(self); 673 struct usb_attach_arg *uaa = aux; 674 struct usbd_device *dev = uaa->uaa_device; 675 usbd_status err; 676 usb_interface_descriptor_t *id; 677 usb_endpoint_descriptor_t *ed; 678 struct mii_data *mii; 679 uint8_t eaddr[ETHER_ADDR_LEN]; 680 char *devinfop; 681 const char *devname = device_xname(self); 682 struct ifnet *ifp; 683 int i, s; 684 685 aprint_naive("\n"); 686 aprint_normal("\n"); 687 688 sc->axen_dev = self; 689 sc->axen_udev = dev; 690 691 devinfop = usbd_devinfo_alloc(dev, 0); 692 aprint_normal_dev(self, "%s\n", devinfop); 693 usbd_devinfo_free(devinfop); 694 695 err = usbd_set_config_no(dev, AXEN_CONFIG_NO, 1); 696 if (err) { 697 aprint_error_dev(self, "failed to set configuration" 698 ", err=%s\n", usbd_errstr(err)); 699 return; 700 } 701 702 sc->axen_flags = axen_lookup(uaa->uaa_vendor, uaa->uaa_product)->axen_flags; 703 704 rw_init(&sc->axen_mii_lock); 705 usb_init_task(&sc->axen_tick_task, axen_tick_task, sc, 0); 706 707 err = usbd_device2interface_handle(dev, AXEN_IFACE_IDX,&sc->axen_iface); 708 if (err) { 709 aprint_error_dev(self, "getting interface handle failed\n"); 710 return; 711 } 712 713 sc->axen_product = uaa->uaa_product; 714 sc->axen_vendor = uaa->uaa_vendor; 715 716 id = usbd_get_interface_descriptor(sc->axen_iface); 717 718 /* decide on what our bufsize will be */ 719 switch (sc->axen_udev->ud_speed) { 720 case USB_SPEED_SUPER: 721 sc->axen_bufsz = AXEN_BUFSZ_SS * 1024; 722 break; 723 case USB_SPEED_HIGH: 724 sc->axen_bufsz = AXEN_BUFSZ_HS * 1024; 725 break; 726 default: 727 sc->axen_bufsz = AXEN_BUFSZ_LS * 1024; 728 break; 729 } 730 731 /* Find endpoints. */ 732 for (i = 0; i < id->bNumEndpoints; i++) { 733 ed = usbd_interface2endpoint_descriptor(sc->axen_iface, i); 734 if (!ed) { 735 aprint_error_dev(self, "couldn't get ep %d\n", i); 736 return; 737 } 738 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 739 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 740 sc->axen_ed[AXEN_ENDPT_RX] = ed->bEndpointAddress; 741 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 742 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 743 sc->axen_ed[AXEN_ENDPT_TX] = ed->bEndpointAddress; 744 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 745 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 746 sc->axen_ed[AXEN_ENDPT_INTR] = ed->bEndpointAddress; 747 } 748 } 749 750 s = splnet(); 751 752 sc->axen_phyno = AXEN_PHY_ID; 753 DPRINTF(("%s: phyno %d\n", device_xname(self), sc->axen_phyno)); 754 755 /* 756 * Get station address. 757 */ 758 #if 0 /* read from eeprom */ 759 if (axen_ax88179_eeprom(sc, &eaddr)) { 760 printf("EEPROM checksum error\n"); 761 return; 762 } 763 #else /* use MAC command */ 764 axen_lock_mii(sc); 765 axen_cmd(sc, AXEN_CMD_MAC_READ_ETHER, 6, AXEN_CMD_MAC_NODE_ID, &eaddr); 766 axen_unlock_mii(sc); 767 #endif 768 axen_ax88179_init(sc); 769 770 /* 771 * An ASIX chip was detected. Inform the world. 772 */ 773 if (sc->axen_flags & AX178A) 774 aprint_normal_dev(self, "AX88178a\n"); 775 else if (sc->axen_flags & AX179) 776 aprint_normal_dev(self, "AX88179\n"); 777 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 778 779 /* Initialize interface info.*/ 780 781 ifp = &sc->sc_if; 782 ifp->if_softc = sc; 783 strlcpy(ifp->if_xname, devname, IFNAMSIZ); 784 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 785 ifp->if_ioctl = axen_ioctl; 786 ifp->if_start = axen_start; 787 ifp->if_init = axen_init; 788 ifp->if_stop = axen_stop; 789 ifp->if_watchdog = axen_watchdog; 790 791 IFQ_SET_READY(&ifp->if_snd); 792 793 sc->axen_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 794 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Rx | IFCAP_CSUM_IPv4_Tx | 795 IFCAP_CSUM_TCPv4_Rx | IFCAP_CSUM_TCPv4_Tx | 796 IFCAP_CSUM_UDPv4_Rx | IFCAP_CSUM_UDPv4_Tx | 797 IFCAP_CSUM_TCPv6_Rx | IFCAP_CSUM_TCPv6_Tx | 798 IFCAP_CSUM_UDPv6_Rx | IFCAP_CSUM_UDPv6_Tx; 799 800 /* Initialize MII/media info. */ 801 mii = &sc->axen_mii; 802 mii->mii_ifp = ifp; 803 mii->mii_readreg = axen_miibus_readreg; 804 mii->mii_writereg = axen_miibus_writereg; 805 mii->mii_statchg = axen_miibus_statchg; 806 mii->mii_flags = MIIF_AUTOTSLEEP; 807 808 sc->axen_ec.ec_mii = mii; 809 ifmedia_init(&mii->mii_media, 0, axen_ifmedia_upd, axen_ifmedia_sts); 810 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 811 812 if (LIST_FIRST(&mii->mii_phys) == NULL) { 813 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 814 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 815 } else 816 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 817 818 /* Attach the interface. */ 819 if_attach(ifp); 820 ether_ifattach(ifp, eaddr); 821 rnd_attach_source(&sc->rnd_source, device_xname(sc->axen_dev), 822 RND_TYPE_NET, RND_FLAG_DEFAULT); 823 824 callout_init(&sc->axen_stat_ch, 0); 825 callout_setfunc(&sc->axen_stat_ch, axen_tick, sc); 826 827 sc->axen_attached = true; 828 splx(s); 829 830 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axen_udev,sc->axen_dev); 831 832 if (!pmf_device_register(self, NULL, NULL)) 833 aprint_error_dev(self, "couldn't establish power handler\n"); 834 } 835 836 static int 837 axen_detach(device_t self, int flags) 838 { 839 struct axen_softc *sc = device_private(self); 840 struct ifnet *ifp = GET_IFP(sc); 841 int s; 842 843 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 844 845 /* Detached before attached finished, so just bail out. */ 846 if (!sc->axen_attached) 847 return 0; 848 849 pmf_device_deregister(self); 850 851 sc->axen_dying = true; 852 853 callout_halt(&sc->axen_stat_ch, NULL); 854 usb_rem_task_wait(sc->axen_udev, &sc->axen_tick_task, 855 USB_TASKQ_DRIVER, NULL); 856 857 s = splusb(); 858 859 if (ifp->if_flags & IFF_RUNNING) 860 axen_stop(ifp, 1); 861 862 callout_destroy(&sc->axen_stat_ch); 863 rnd_detach_source(&sc->rnd_source); 864 mii_detach(&sc->axen_mii, MII_PHY_ANY, MII_OFFSET_ANY); 865 ifmedia_delete_instance(&sc->axen_mii.mii_media, IFM_INST_ANY); 866 ether_ifdetach(ifp); 867 if_detach(ifp); 868 869 #ifdef DIAGNOSTIC 870 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL || 871 sc->axen_ep[AXEN_ENDPT_RX] != NULL || 872 sc->axen_ep[AXEN_ENDPT_INTR] != NULL) 873 aprint_debug_dev(self, "detach has active endpoints\n"); 874 #endif 875 876 sc->axen_attached = false; 877 878 if (--sc->axen_refcnt >= 0) { 879 /* Wait for processes to go away. */ 880 usb_detach_waitold(sc->axen_dev); 881 } 882 splx(s); 883 884 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axen_udev,sc->axen_dev); 885 886 rw_destroy(&sc->axen_mii_lock); 887 888 return 0; 889 } 890 891 static int 892 axen_activate(device_t self, devact_t act) 893 { 894 struct axen_softc *sc = device_private(self); 895 struct ifnet *ifp = GET_IFP(sc); 896 897 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 898 899 switch (act) { 900 case DVACT_DEACTIVATE: 901 if_deactivate(ifp); 902 sc->axen_dying = true; 903 return 0; 904 default: 905 return EOPNOTSUPP; 906 } 907 } 908 909 static struct mbuf * 910 axen_newbuf(void) 911 { 912 struct mbuf *m; 913 914 MGETHDR(m, M_DONTWAIT, MT_DATA); 915 if (m == NULL) 916 return NULL; 917 918 MCLGET(m, M_DONTWAIT); 919 if (!(m->m_flags & M_EXT)) { 920 m_freem(m); 921 return NULL; 922 } 923 924 m->m_len = m->m_pkthdr.len = MCLBYTES; 925 m_adj(m, ETHER_ALIGN); 926 927 return m; 928 } 929 930 static int 931 axen_rx_list_init(struct axen_softc *sc) 932 { 933 struct axen_cdata *cd; 934 struct axen_chain *c; 935 int i; 936 937 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 938 939 cd = &sc->axen_cdata; 940 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 941 c = &cd->axen_rx_chain[i]; 942 c->axen_sc = sc; 943 c->axen_idx = i; 944 if (c->axen_xfer == NULL) { 945 int err = usbd_create_xfer(sc->axen_ep[AXEN_ENDPT_RX], 946 sc->axen_bufsz, 0, 0, &c->axen_xfer); 947 if (err) 948 return err; 949 c->axen_buf = usbd_get_buffer(c->axen_xfer); 950 } 951 } 952 953 return 0; 954 } 955 956 static int 957 axen_tx_list_init(struct axen_softc *sc) 958 { 959 struct axen_cdata *cd; 960 struct axen_chain *c; 961 int i; 962 963 DPRINTF(("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 964 965 cd = &sc->axen_cdata; 966 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 967 c = &cd->axen_tx_chain[i]; 968 c->axen_sc = sc; 969 c->axen_idx = i; 970 if (c->axen_xfer == NULL) { 971 int err = usbd_create_xfer(sc->axen_ep[AXEN_ENDPT_TX], 972 sc->axen_bufsz, USBD_FORCE_SHORT_XFER, 0, 973 &c->axen_xfer); 974 if (err) 975 return err; 976 c->axen_buf = usbd_get_buffer(c->axen_xfer); 977 } 978 } 979 980 return 0; 981 } 982 983 /* 984 * A frame has been uploaded: pass the resulting mbuf chain up to 985 * the higher level protocols. 986 */ 987 static void 988 axen_rxeof(struct usbd_xfer *xfer, void * priv, usbd_status status) 989 { 990 struct axen_chain *c = (struct axen_chain *)priv; 991 struct axen_softc *sc = c->axen_sc; 992 struct ifnet *ifp = GET_IFP(sc); 993 uint8_t *buf = c->axen_buf; 994 struct mbuf *m; 995 uint32_t total_len; 996 uint32_t rx_hdr, pkt_hdr; 997 uint32_t *hdr_p; 998 uint16_t hdr_offset, pkt_count; 999 size_t pkt_len; 1000 size_t temp; 1001 int s; 1002 1003 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->axen_dev), __func__)); 1004 1005 if (sc->axen_dying) 1006 return; 1007 1008 if (!(ifp->if_flags & IFF_RUNNING)) 1009 return; 1010 1011 if (status != USBD_NORMAL_COMPLETION) { 1012 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 1013 return; 1014 if (usbd_ratecheck(&sc->axen_rx_notice)) { 1015 aprint_error_dev(sc->axen_dev, "usb errors on rx: %s\n", 1016 usbd_errstr(status)); 1017 } 1018 if (status == USBD_STALLED) 1019 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_RX]); 1020 goto done; 1021 } 1022 1023 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 1024 1025 if (total_len < sizeof(pkt_hdr)) { 1026 ifp->if_ierrors++; 1027 goto done; 1028 } 1029 1030 /* 1031 * buffer map 1032 * [packet #0]...[packet #n][pkt hdr#0]..[pkt hdr#n][recv_hdr] 1033 * each packet has 0xeeee as psuedo header.. 1034 */ 1035 hdr_p = (uint32_t *)(buf + total_len - sizeof(uint32_t)); 1036 rx_hdr = le32toh(*hdr_p); 1037 hdr_offset = (uint16_t)(rx_hdr >> 16); 1038 pkt_count = (uint16_t)(rx_hdr & 0xffff); 1039 1040 if (total_len > sc->axen_bufsz) { 1041 aprint_error_dev(sc->axen_dev, "rxeof: too large transfer\n"); 1042 goto done; 1043 } 1044 1045 /* sanity check */ 1046 if (hdr_offset > total_len) { 1047 ifp->if_ierrors++; 1048 usbd_delay_ms(sc->axen_udev, 100); 1049 goto done; 1050 } 1051 1052 /* point first packet header */ 1053 hdr_p = (uint32_t *)(buf + hdr_offset); 1054 1055 /* 1056 * ax88179 will pack multiple ip packet to a USB transaction. 1057 * process all of packets in the buffer 1058 */ 1059 1060 #if 1 /* XXX: paranoiac check. need to remove later */ 1061 #define AXEN_MAX_PACKED_PACKET 200 1062 if (pkt_count > AXEN_MAX_PACKED_PACKET) { 1063 DPRINTF(("%s: Too many packets (%d) in a transaction, discard.\n", 1064 device_xname(sc->axen_dev), pkt_count)); 1065 goto done; 1066 } 1067 #endif 1068 1069 do { 1070 if ((buf[0] != 0xee) || (buf[1] != 0xee)){ 1071 aprint_error_dev(sc->axen_dev, 1072 "invalid buffer(pkt#%d), continue\n", pkt_count); 1073 ifp->if_ierrors += pkt_count; 1074 goto done; 1075 } 1076 1077 pkt_hdr = le32toh(*hdr_p); 1078 pkt_len = (pkt_hdr >> 16) & 0x1fff; 1079 DPRINTFN(10, 1080 ("%s: rxeof: packet#%d, pkt_hdr 0x%08x, pkt_len %zu\n", 1081 device_xname(sc->axen_dev), pkt_count, pkt_hdr, pkt_len)); 1082 1083 if (pkt_hdr & (AXEN_RXHDR_CRC_ERR | AXEN_RXHDR_DROP_ERR)) { 1084 ifp->if_ierrors++; 1085 /* move to next pkt header */ 1086 DPRINTF(("%s: %s err (pkt#%d)\n", 1087 device_xname(sc->axen_dev), 1088 (pkt_hdr & AXEN_RXHDR_CRC_ERR) ? "crc" : "drop", 1089 pkt_count)); 1090 goto nextpkt; 1091 } 1092 1093 /* process each packet */ 1094 /* allocate mbuf */ 1095 m = axen_newbuf(); 1096 if (m == NULL) { 1097 ifp->if_ierrors++; 1098 goto nextpkt; 1099 } 1100 1101 /* skip pseudo header (2byte) */ 1102 m_set_rcvif(m, ifp); 1103 m->m_pkthdr.len = m->m_len = pkt_len - 6; 1104 1105 m->m_pkthdr.csum_flags = axen_csum_flags_rx(ifp, pkt_hdr); 1106 memcpy(mtod(m, char *), buf + 2, pkt_len - 6); 1107 1108 /* push the packet up */ 1109 s = splnet(); 1110 if_percpuq_enqueue((ifp)->if_percpuq, (m)); 1111 splx(s); 1112 1113 nextpkt: 1114 /* 1115 * prepare next packet 1116 * as each packet will be aligned 8byte boundary, 1117 * need to fix up the start point of the buffer. 1118 */ 1119 temp = ((pkt_len + 7) & 0xfff8); 1120 buf = buf + temp; 1121 hdr_p++; 1122 pkt_count--; 1123 } while( pkt_count > 0); 1124 1125 done: 1126 /* Setup new transfer. */ 1127 usbd_setup_xfer(xfer, c, c->axen_buf, sc->axen_bufsz, 1128 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axen_rxeof); 1129 usbd_transfer(xfer); 1130 1131 DPRINTFN(10,("%s: %s: start rx\n",device_xname(sc->axen_dev),__func__)); 1132 } 1133 1134 static int 1135 axen_csum_flags_rx(struct ifnet *ifp, uint32_t pkt_hdr) 1136 { 1137 int enabled_flags = ifp->if_csum_flags_rx; 1138 int csum_flags = 0; 1139 int l3_type, l4_type; 1140 1141 if (enabled_flags == 0) 1142 return 0; 1143 1144 l3_type = (pkt_hdr & AXEN_RXHDR_L3_TYPE_MASK) >> 1145 AXEN_RXHDR_L3_TYPE_OFFSET; 1146 1147 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4) 1148 csum_flags |= M_CSUM_IPv4; 1149 1150 l4_type = (pkt_hdr & AXEN_RXHDR_L4_TYPE_MASK) >> 1151 AXEN_RXHDR_L4_TYPE_OFFSET; 1152 1153 switch (l4_type) { 1154 case AXEN_RXHDR_L4_TYPE_TCP: 1155 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4) 1156 csum_flags |= M_CSUM_TCPv4; 1157 else 1158 csum_flags |= M_CSUM_TCPv6; 1159 break; 1160 case AXEN_RXHDR_L4_TYPE_UDP: 1161 if (l3_type == AXEN_RXHDR_L3_TYPE_IPV4) 1162 csum_flags |= M_CSUM_UDPv4; 1163 else 1164 csum_flags |= M_CSUM_UDPv6; 1165 break; 1166 default: 1167 break; 1168 } 1169 1170 csum_flags &= enabled_flags; 1171 if ((csum_flags & M_CSUM_IPv4) && (pkt_hdr & AXEN_RXHDR_L3CSUM_ERR)) 1172 csum_flags |= M_CSUM_IPv4_BAD; 1173 if ((csum_flags & ~M_CSUM_IPv4) && (pkt_hdr & AXEN_RXHDR_L4CSUM_ERR)) 1174 csum_flags |= M_CSUM_TCP_UDP_BAD; 1175 1176 return csum_flags; 1177 } 1178 1179 /* 1180 * A frame was downloaded to the chip. It's safe for us to clean up 1181 * the list buffers. 1182 */ 1183 static void 1184 axen_txeof(struct usbd_xfer *xfer, void * priv, usbd_status status) 1185 { 1186 struct axen_chain *c = (struct axen_chain *)priv; 1187 struct axen_softc *sc = c->axen_sc; 1188 struct ifnet *ifp = GET_IFP(sc); 1189 int s; 1190 1191 if (sc->axen_dying) 1192 return; 1193 1194 s = splnet(); 1195 1196 if (status != USBD_NORMAL_COMPLETION) { 1197 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 1198 splx(s); 1199 return; 1200 } 1201 ifp->if_oerrors++; 1202 aprint_error_dev(sc->axen_dev, "usb error on tx: %s\n", 1203 usbd_errstr(status)); 1204 if (status == USBD_STALLED) 1205 usbd_clear_endpoint_stall_async(sc->axen_ep[AXEN_ENDPT_TX]); 1206 splx(s); 1207 return; 1208 } 1209 1210 ifp->if_timer = 0; 1211 ifp->if_flags &= ~IFF_OACTIVE; 1212 1213 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1214 axen_start(ifp); 1215 1216 ifp->if_opackets++; 1217 splx(s); 1218 } 1219 1220 static void 1221 axen_tick(void *xsc) 1222 { 1223 struct axen_softc *sc = xsc; 1224 1225 if (sc == NULL) 1226 return; 1227 1228 DPRINTFN(0xff,("%s: %s: enter\n", device_xname(sc->axen_dev),__func__)); 1229 1230 if (sc->axen_dying) 1231 return; 1232 1233 /* Perform periodic stuff in process context */ 1234 usb_add_task(sc->axen_udev, &sc->axen_tick_task, USB_TASKQ_DRIVER); 1235 } 1236 1237 static void 1238 axen_tick_task(void *xsc) 1239 { 1240 int s; 1241 struct axen_softc *sc; 1242 struct ifnet *ifp; 1243 struct mii_data *mii; 1244 1245 sc = xsc; 1246 1247 if (sc == NULL) 1248 return; 1249 1250 if (sc->axen_dying) 1251 return; 1252 1253 ifp = GET_IFP(sc); 1254 mii = GET_MII(sc); 1255 if (mii == NULL) 1256 return; 1257 1258 s = splnet(); 1259 1260 mii_tick(mii); 1261 if (sc->axen_link == 0) 1262 axen_miibus_statchg(ifp); 1263 1264 callout_schedule(&sc->axen_stat_ch, hz); 1265 1266 splx(s); 1267 } 1268 1269 static int 1270 axen_encap(struct axen_softc *sc, struct mbuf *m, int idx) 1271 { 1272 struct ifnet *ifp = GET_IFP(sc); 1273 struct axen_chain *c; 1274 usbd_status err; 1275 struct axen_sframe_hdr hdr; 1276 int length, boundary; 1277 1278 c = &sc->axen_cdata.axen_tx_chain[idx]; 1279 1280 boundary = (sc->axen_udev->ud_speed == USB_SPEED_HIGH) ? 512 : 64; 1281 1282 hdr.plen = htole32(m->m_pkthdr.len); 1283 hdr.gso = 0; /* disable segmentation offloading */ 1284 1285 memcpy(c->axen_buf, &hdr, sizeof(hdr)); 1286 length = sizeof(hdr); 1287 1288 m_copydata(m, 0, m->m_pkthdr.len, c->axen_buf + length); 1289 length += m->m_pkthdr.len; 1290 1291 if ((length % boundary) == 0) { 1292 hdr.plen = 0x0; 1293 hdr.gso |= 0x80008000; /* enable padding */ 1294 memcpy(c->axen_buf + length, &hdr, sizeof(hdr)); 1295 length += sizeof(hdr); 1296 } 1297 1298 usbd_setup_xfer(c->axen_xfer, c, c->axen_buf, length, 1299 USBD_FORCE_SHORT_XFER, 10000, axen_txeof); 1300 1301 /* Transmit */ 1302 err = usbd_transfer(c->axen_xfer); 1303 if (err != USBD_IN_PROGRESS) { 1304 axen_stop(ifp, 0); 1305 return EIO; 1306 } 1307 1308 sc->axen_cdata.axen_tx_cnt++; 1309 1310 return 0; 1311 } 1312 1313 static void 1314 axen_start(struct ifnet *ifp) 1315 { 1316 struct axen_softc *sc; 1317 struct mbuf *m; 1318 1319 sc = ifp->if_softc; 1320 1321 if (sc->axen_link == 0) 1322 return; 1323 1324 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1325 return; 1326 1327 IFQ_POLL(&ifp->if_snd, m); 1328 if (m == NULL) 1329 return; 1330 1331 if (axen_encap(sc, m, 0)) { 1332 ifp->if_flags |= IFF_OACTIVE; 1333 return; 1334 } 1335 IFQ_DEQUEUE(&ifp->if_snd, m); 1336 1337 /* 1338 * If there's a BPF listener, bounce a copy of this frame 1339 * to him. 1340 */ 1341 bpf_mtap(ifp, m, BPF_D_OUT); 1342 m_freem(m); 1343 1344 ifp->if_flags |= IFF_OACTIVE; 1345 1346 /* 1347 * Set a timeout in case the chip goes out to lunch. 1348 */ 1349 ifp->if_timer = 5; 1350 } 1351 1352 static int 1353 axen_init(struct ifnet *ifp) 1354 { 1355 struct axen_softc *sc = ifp->if_softc; 1356 struct axen_chain *c; 1357 usbd_status err; 1358 int i, s; 1359 uint16_t rxmode; 1360 uint16_t wval; 1361 uint8_t bval; 1362 1363 s = splnet(); 1364 1365 if (ifp->if_flags & IFF_RUNNING) 1366 axen_stop(ifp, 0); 1367 1368 /* 1369 * Cancel pending I/O and free all RX/TX buffers. 1370 */ 1371 axen_reset(sc); 1372 1373 /* XXX: ? */ 1374 axen_lock_mii(sc); 1375 bval = 0x01; 1376 axen_cmd(sc, AXEN_CMD_MAC_WRITE, 1, AXEN_UNK_28, &bval); 1377 axen_unlock_mii(sc); 1378 1379 /* Configure offloading engine. */ 1380 axen_setcoe(sc); 1381 1382 /* Program promiscuous mode and multicast filters. */ 1383 axen_iff(sc); 1384 1385 /* Enable receiver, set RX mode */ 1386 axen_lock_mii(sc); 1387 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 1388 rxmode = le16toh(wval); 1389 rxmode |= AXEN_RXCTL_START; 1390 wval = htole16(rxmode); 1391 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 1392 axen_unlock_mii(sc); 1393 1394 /* Open RX and TX pipes. */ 1395 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_RX], 1396 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_RX]); 1397 if (err) { 1398 aprint_error_dev(sc->axen_dev, "open rx pipe failed: %s\n", 1399 usbd_errstr(err)); 1400 splx(s); 1401 return EIO; 1402 } 1403 1404 err = usbd_open_pipe(sc->axen_iface, sc->axen_ed[AXEN_ENDPT_TX], 1405 USBD_EXCLUSIVE_USE, &sc->axen_ep[AXEN_ENDPT_TX]); 1406 if (err) { 1407 aprint_error_dev(sc->axen_dev, "open tx pipe failed: %s\n", 1408 usbd_errstr(err)); 1409 splx(s); 1410 return EIO; 1411 } 1412 1413 /* Init RX ring. */ 1414 if (axen_rx_list_init(sc)) { 1415 aprint_error_dev(sc->axen_dev, "rx list init failed\n"); 1416 splx(s); 1417 return ENOBUFS; 1418 } 1419 1420 /* Init TX ring. */ 1421 if (axen_tx_list_init(sc)) { 1422 aprint_error_dev(sc->axen_dev, "tx list init failed\n"); 1423 splx(s); 1424 return ENOBUFS; 1425 } 1426 1427 /* Start up the receive pipe. */ 1428 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1429 c = &sc->axen_cdata.axen_rx_chain[i]; 1430 1431 usbd_setup_xfer(c->axen_xfer, c, c->axen_buf, sc->axen_bufsz, 1432 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axen_rxeof); 1433 usbd_transfer(c->axen_xfer); 1434 } 1435 1436 ifp->if_flags |= IFF_RUNNING; 1437 ifp->if_flags &= ~IFF_OACTIVE; 1438 1439 splx(s); 1440 1441 callout_schedule(&sc->axen_stat_ch, hz); 1442 return 0; 1443 } 1444 1445 static int 1446 axen_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1447 { 1448 struct axen_softc *sc = ifp->if_softc; 1449 int s; 1450 int error = 0; 1451 1452 s = splnet(); 1453 1454 switch (cmd) { 1455 case SIOCSIFFLAGS: 1456 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1457 break; 1458 1459 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 1460 case IFF_RUNNING: 1461 axen_stop(ifp, 1); 1462 break; 1463 case IFF_UP: 1464 axen_init(ifp); 1465 break; 1466 case IFF_UP | IFF_RUNNING: 1467 if ((ifp->if_flags ^ sc->axen_if_flags) == IFF_PROMISC) 1468 axen_iff(sc); 1469 else 1470 axen_init(ifp); 1471 break; 1472 } 1473 sc->axen_if_flags = ifp->if_flags; 1474 break; 1475 1476 default: 1477 if ((error = ether_ioctl(ifp, cmd, data)) != ENETRESET) 1478 break; 1479 1480 error = 0; 1481 switch(cmd) { 1482 case SIOCADDMULTI: 1483 case SIOCDELMULTI: 1484 axen_iff(sc); 1485 break; 1486 case SIOCSIFCAP: 1487 axen_setcoe(sc); 1488 break; 1489 default: 1490 break; 1491 } 1492 break; 1493 } 1494 splx(s); 1495 1496 return error; 1497 } 1498 1499 static void 1500 axen_watchdog(struct ifnet *ifp) 1501 { 1502 struct axen_softc *sc; 1503 struct axen_chain *c; 1504 usbd_status stat; 1505 int s; 1506 1507 sc = ifp->if_softc; 1508 1509 ifp->if_oerrors++; 1510 aprint_error_dev(sc->axen_dev, "watchdog timeout\n"); 1511 1512 s = splusb(); 1513 c = &sc->axen_cdata.axen_tx_chain[0]; 1514 usbd_get_xfer_status(c->axen_xfer, NULL, NULL, NULL, &stat); 1515 axen_txeof(c->axen_xfer, c, stat); 1516 1517 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 1518 axen_start(ifp); 1519 splx(s); 1520 } 1521 1522 /* 1523 * Stop the adapter and free any mbufs allocated to the 1524 * RX and TX lists. 1525 */ 1526 static void 1527 axen_stop(struct ifnet *ifp, int disable) 1528 { 1529 struct axen_softc *sc = ifp->if_softc; 1530 struct axen_chain *c; 1531 usbd_status err; 1532 int i; 1533 uint16_t rxmode, wval; 1534 1535 axen_reset(sc); 1536 1537 /* Disable receiver, set RX mode */ 1538 axen_lock_mii(sc); 1539 axen_cmd(sc, AXEN_CMD_MAC_READ2, 2, AXEN_MAC_RXCTL, &wval); 1540 rxmode = le16toh(wval); 1541 rxmode &= ~AXEN_RXCTL_START; 1542 wval = htole16(rxmode); 1543 axen_cmd(sc, AXEN_CMD_MAC_WRITE2, 2, AXEN_MAC_RXCTL, &wval); 1544 axen_unlock_mii(sc); 1545 1546 ifp->if_timer = 0; 1547 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1548 1549 callout_stop(&sc->axen_stat_ch); 1550 1551 /* Stop transfers. */ 1552 if (sc->axen_ep[AXEN_ENDPT_RX] != NULL) { 1553 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1554 if (err) { 1555 aprint_error_dev(sc->axen_dev, 1556 "abort rx pipe failed: %s\n", usbd_errstr(err)); 1557 1558 } 1559 } 1560 1561 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL) { 1562 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1563 if (err) { 1564 aprint_error_dev(sc->axen_dev, 1565 "abort tx pipe failed: %s\n", usbd_errstr(err)); 1566 } 1567 } 1568 1569 if (sc->axen_ep[AXEN_ENDPT_INTR] != NULL) { 1570 err = usbd_abort_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1571 if (err) { 1572 aprint_error_dev(sc->axen_dev, 1573 "abort intr pipe failed: %s\n", usbd_errstr(err)); 1574 } 1575 } 1576 1577 /* Free RX resources. */ 1578 for (i = 0; i < AXEN_RX_LIST_CNT; i++) { 1579 c = &sc->axen_cdata.axen_rx_chain[i]; 1580 if (c->axen_xfer != NULL) { 1581 usbd_destroy_xfer(c->axen_xfer); 1582 c->axen_xfer = NULL; 1583 } 1584 } 1585 1586 /* Free TX resources. */ 1587 for (i = 0; i < AXEN_TX_LIST_CNT; i++) { 1588 c = &sc->axen_cdata.axen_tx_chain[i]; 1589 if (c->axen_xfer != NULL) { 1590 usbd_destroy_xfer(c->axen_xfer); 1591 c->axen_xfer = NULL; 1592 } 1593 } 1594 1595 /* Close pipes. */ 1596 if (sc->axen_ep[AXEN_ENDPT_RX] != NULL) { 1597 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_RX]); 1598 if (err) { 1599 aprint_error_dev(sc->axen_dev, 1600 "close rx pipe failed: %s\n", usbd_errstr(err)); 1601 } 1602 sc->axen_ep[AXEN_ENDPT_RX] = NULL; 1603 } 1604 1605 if (sc->axen_ep[AXEN_ENDPT_TX] != NULL) { 1606 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_TX]); 1607 if (err) { 1608 aprint_error_dev(sc->axen_dev, 1609 "close tx pipe failed: %s\n", usbd_errstr(err)); 1610 } 1611 sc->axen_ep[AXEN_ENDPT_TX] = NULL; 1612 } 1613 1614 if (sc->axen_ep[AXEN_ENDPT_INTR] != NULL) { 1615 err = usbd_close_pipe(sc->axen_ep[AXEN_ENDPT_INTR]); 1616 if (err) { 1617 aprint_error_dev(sc->axen_dev, 1618 "close intr pipe failed: %s\n", usbd_errstr(err)); 1619 } 1620 sc->axen_ep[AXEN_ENDPT_INTR] = NULL; 1621 } 1622 1623 sc->axen_link = 0; 1624 } 1625 1626 MODULE(MODULE_CLASS_DRIVER, if_axen, NULL); 1627 1628 #ifdef _MODULE 1629 #include "ioconf.c" 1630 #endif 1631 1632 static int 1633 if_axen_modcmd(modcmd_t cmd, void *aux) 1634 { 1635 int error = 0; 1636 1637 switch (cmd) { 1638 case MODULE_CMD_INIT: 1639 #ifdef _MODULE 1640 error = config_init_component(cfdriver_ioconf_axen, 1641 cfattach_ioconf_axen, cfdata_ioconf_axen); 1642 #endif 1643 return error; 1644 case MODULE_CMD_FINI: 1645 #ifdef _MODULE 1646 error = config_fini_component(cfdriver_ioconf_axen, 1647 cfattach_ioconf_axen, cfdata_ioconf_axen); 1648 #endif 1649 return error; 1650 default: 1651 return ENOTTY; 1652 } 1653 } 1654
Indexes created Mon Oct 13 21:09:55 GMT 2025