1 /*- 2 * Copyright (c) 2013-2014 Kevin Lo 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 /* $FreeBSD: head/sys/dev/usb/net/if_axge.c 276701 2015-01-05 15:04:17Z hselasky $ */ 28 29 /* 30 * ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver. 31 */ 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/bus.h> 36 #include <sys/condvar.h> 37 #include <sys/kernel.h> 38 #include <sys/lock.h> 39 #include <sys/malloc.h> /* for M_NOWAIT */ 40 #include <sys/module.h> 41 #include <sys/socket.h> 42 #include <sys/sysctl.h> 43 #include <sys/unistd.h> 44 45 #include <net/if.h> 46 #include <net/if_var.h> 47 #include <net/ifq_var.h> 48 49 #include <bus/u4b/usb.h> 50 #include <bus/u4b/usbdi.h> 51 #include <bus/u4b/usbdi_util.h> 52 #include "usbdevs.h" 53 54 #define USB_DEBUG_VAR axge_debug 55 #include <bus/u4b/usb_debug.h> 56 #include <bus/u4b/usb_process.h> 57 58 #include <bus/u4b/net/usb_ethernet.h> 59 #include <bus/u4b/net/if_axgereg.h> 60 61 /* 62 * Various supported device vendors/products. 63 */ 64 65 static const STRUCT_USB_HOST_ID axge_devs[] = { 66 #define AXGE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 67 AXGE_DEV(ASIX, AX88178A), 68 AXGE_DEV(ASIX, AX88179), 69 AXGE_DEV(DLINK, DUB1312), 70 AXGE_DEV(SITECOMEU, LN032), 71 #undef AXGE_DEV 72 }; 73 74 static const struct { 75 uint8_t ctrl; 76 uint8_t timer_l; 77 uint8_t timer_h; 78 uint8_t size; 79 uint8_t ifg; 80 } __packed axge_bulk_size[] = { 81 { 7, 0x4f, 0x00, 0x12, 0xff }, 82 { 7, 0x20, 0x03, 0x16, 0xff }, 83 { 7, 0xae, 0x07, 0x18, 0xff }, 84 { 7, 0xcc, 0x4c, 0x18, 0x08 } 85 }; 86 87 /* prototypes */ 88 89 static device_probe_t axge_probe; 90 static device_attach_t axge_attach; 91 static device_detach_t axge_detach; 92 93 static usb_callback_t axge_bulk_read_callback; 94 static usb_callback_t axge_bulk_write_callback; 95 96 static miibus_readreg_t axge_miibus_readreg; 97 static miibus_writereg_t axge_miibus_writereg; 98 static miibus_statchg_t axge_miibus_statchg; 99 100 static uether_fn_t axge_attach_post; 101 static uether_fn_t axge_init; 102 static uether_fn_t axge_stop; 103 static uether_fn_t axge_start; 104 static uether_fn_t axge_tick; 105 static uether_fn_t axge_setmulti; 106 static uether_fn_t axge_setpromisc; 107 108 static int axge_read_mem(struct axge_softc *, uint8_t, uint16_t, 109 uint16_t, void *, int); 110 static void axge_write_mem(struct axge_softc *, uint8_t, uint16_t, 111 uint16_t, void *, int); 112 static uint8_t axge_read_cmd_1(struct axge_softc *, uint8_t, uint16_t); 113 static uint16_t axge_read_cmd_2(struct axge_softc *, uint8_t, uint16_t, 114 uint16_t); 115 static void axge_write_cmd_1(struct axge_softc *, uint8_t, uint16_t, 116 uint8_t); 117 static void axge_write_cmd_2(struct axge_softc *, uint8_t, uint16_t, 118 uint16_t, uint16_t); 119 static void axge_chip_init(struct axge_softc *); 120 static void axge_reset(struct axge_softc *); 121 122 static int axge_attach_post_sub(struct usb_ether *); 123 static int axge_ifmedia_upd(struct ifnet *); 124 static void axge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 125 static int axge_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); 126 static void axge_rx_frame(struct usb_ether *, struct usb_page_cache *, int); 127 static void axge_rxeof(struct usb_ether *, struct usb_page_cache *, 128 unsigned int, unsigned int, uint32_t); 129 static void axge_csum_cfg(struct usb_ether *); 130 131 #define AXGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) 132 133 #ifdef USB_DEBUG 134 static int axge_debug = 0; 135 136 static SYSCTL_NODE(_hw_usb, OID_AUTO, axge, CTLFLAG_RW, 0, "USB axge"); 137 SYSCTL_INT(_hw_usb_axge, OID_AUTO, debug, CTLFLAG_RW, &axge_debug, 0, 138 "Debug level"); 139 #endif 140 141 static const struct usb_config axge_config[AXGE_N_TRANSFER] = { 142 [AXGE_BULK_DT_WR] = { 143 .type = UE_BULK, 144 .endpoint = UE_ADDR_ANY, 145 .direction = UE_DIR_OUT, 146 .frames = 16, 147 .bufsize = 16 * MCLBYTES, 148 .flags = {.pipe_bof = 1,.force_short_xfer = 1,}, 149 .callback = axge_bulk_write_callback, 150 .timeout = 10000, /* 10 seconds */ 151 }, 152 [AXGE_BULK_DT_RD] = { 153 .type = UE_BULK, 154 .endpoint = UE_ADDR_ANY, 155 .direction = UE_DIR_IN, 156 .bufsize = 65536, 157 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 158 .callback = axge_bulk_read_callback, 159 .timeout = 0, /* no timeout */ 160 }, 161 }; 162 163 static device_method_t axge_methods[] = { 164 /* Device interface. */ 165 DEVMETHOD(device_probe, axge_probe), 166 DEVMETHOD(device_attach, axge_attach), 167 DEVMETHOD(device_detach, axge_detach), 168 169 /* MII interface. */ 170 DEVMETHOD(miibus_readreg, axge_miibus_readreg), 171 DEVMETHOD(miibus_writereg, axge_miibus_writereg), 172 DEVMETHOD(miibus_statchg, axge_miibus_statchg), 173 174 DEVMETHOD_END 175 }; 176 177 static driver_t axge_driver = { 178 .name = "axge", 179 .methods = axge_methods, 180 .size = sizeof(struct axge_softc), 181 }; 182 183 static devclass_t axge_devclass; 184 185 DRIVER_MODULE(axge, uhub, axge_driver, axge_devclass, NULL, NULL); 186 DRIVER_MODULE(miibus, axge, miibus_driver, miibus_devclass, NULL, NULL); 187 MODULE_DEPEND(axge, uether, 1, 1, 1); 188 MODULE_DEPEND(axge, usb, 1, 1, 1); 189 MODULE_DEPEND(axge, ether, 1, 1, 1); 190 MODULE_DEPEND(axge, miibus, 1, 1, 1); 191 MODULE_VERSION(axge, 1); 192 193 static const struct usb_ether_methods axge_ue_methods = { 194 .ue_attach_post = axge_attach_post, 195 .ue_attach_post_sub = axge_attach_post_sub, 196 .ue_start = axge_start, 197 .ue_init = axge_init, 198 .ue_stop = axge_stop, 199 .ue_tick = axge_tick, 200 .ue_setmulti = axge_setmulti, 201 .ue_setpromisc = axge_setpromisc, 202 .ue_mii_upd = axge_ifmedia_upd, 203 .ue_mii_sts = axge_ifmedia_sts, 204 }; 205 206 static int 207 axge_read_mem(struct axge_softc *sc, uint8_t cmd, uint16_t index, 208 uint16_t val, void *buf, int len) 209 { 210 struct usb_device_request req; 211 212 AXGE_LOCK_ASSERT(sc); 213 214 req.bmRequestType = UT_READ_VENDOR_DEVICE; 215 req.bRequest = cmd; 216 USETW(req.wValue, val); 217 USETW(req.wIndex, index); 218 USETW(req.wLength, len); 219 220 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 221 } 222 223 static void 224 axge_write_mem(struct axge_softc *sc, uint8_t cmd, uint16_t index, 225 uint16_t val, void *buf, int len) 226 { 227 struct usb_device_request req; 228 229 AXGE_LOCK_ASSERT(sc); 230 231 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 232 req.bRequest = cmd; 233 USETW(req.wValue, val); 234 USETW(req.wIndex, index); 235 USETW(req.wLength, len); 236 237 if (uether_do_request(&sc->sc_ue, &req, buf, 1000)) { 238 /* Error ignored. */ 239 } 240 } 241 242 static uint8_t 243 axge_read_cmd_1(struct axge_softc *sc, uint8_t cmd, uint16_t reg) 244 { 245 uint8_t val; 246 247 axge_read_mem(sc, cmd, 1, reg, &val, 1); 248 return (val); 249 } 250 251 static uint16_t 252 axge_read_cmd_2(struct axge_softc *sc, uint8_t cmd, uint16_t index, 253 uint16_t reg) 254 { 255 uint8_t val[2]; 256 257 axge_read_mem(sc, cmd, index, reg, &val, 2); 258 return (UGETW(val)); 259 } 260 261 static void 262 axge_write_cmd_1(struct axge_softc *sc, uint8_t cmd, uint16_t reg, uint8_t val) 263 { 264 axge_write_mem(sc, cmd, 1, reg, &val, 1); 265 } 266 267 static void 268 axge_write_cmd_2(struct axge_softc *sc, uint8_t cmd, uint16_t index, 269 uint16_t reg, uint16_t val) 270 { 271 uint8_t temp[2]; 272 273 USETW(temp, val); 274 axge_write_mem(sc, cmd, index, reg, &temp, 2); 275 } 276 277 static int 278 axge_miibus_readreg(device_t dev, int phy, int reg) 279 { 280 struct axge_softc *sc; 281 uint16_t val; 282 int locked; 283 284 sc = device_get_softc(dev); 285 locked = lockowned(&sc->sc_lock); 286 if (!locked) 287 AXGE_LOCK(sc); 288 289 val = axge_read_cmd_2(sc, AXGE_ACCESS_PHY, reg, phy); 290 291 if (!locked) 292 AXGE_UNLOCK(sc); 293 294 return (val); 295 } 296 297 static int 298 axge_miibus_writereg(device_t dev, int phy, int reg, int val) 299 { 300 struct axge_softc *sc; 301 int locked; 302 303 sc = device_get_softc(dev); 304 if (sc->sc_phyno != phy) 305 return (0); 306 locked = lockowned(&sc->sc_lock); 307 if (!locked) 308 AXGE_LOCK(sc); 309 310 axge_write_cmd_2(sc, AXGE_ACCESS_PHY, reg, phy, val); 311 312 if (!locked) 313 AXGE_UNLOCK(sc); 314 315 return (0); 316 } 317 318 static void 319 axge_miibus_statchg(device_t dev) 320 { 321 struct axge_softc *sc; 322 struct mii_data *mii; 323 struct ifnet *ifp; 324 uint8_t link_status, tmp[5]; 325 uint16_t val; 326 int locked; 327 328 sc = device_get_softc(dev); 329 mii = GET_MII(sc); 330 locked = lockowned(&sc->sc_lock); 331 if (!locked) 332 AXGE_LOCK(sc); 333 334 ifp = uether_getifp(&sc->sc_ue); 335 if (mii == NULL || ifp == NULL || 336 (ifp->if_flags & IFF_RUNNING) == 0) 337 goto done; 338 339 sc->sc_flags &= ~AXGE_FLAG_LINK; 340 if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) == 341 (IFM_ACTIVE | IFM_AVALID)) { 342 switch (IFM_SUBTYPE(mii->mii_media_active)) { 343 case IFM_10_T: 344 case IFM_100_TX: 345 case IFM_1000_T: 346 sc->sc_flags |= AXGE_FLAG_LINK; 347 break; 348 default: 349 break; 350 } 351 } 352 353 /* Lost link, do nothing. */ 354 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0) 355 goto done; 356 357 link_status = axge_read_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PLSR); 358 359 val = 0; 360 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 361 val |= MSR_FD; 362 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 363 val |= MSR_TFC; 364 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 365 val |= MSR_RFC; 366 } 367 val |= MSR_RE; 368 switch (IFM_SUBTYPE(mii->mii_media_active)) { 369 case IFM_1000_T: 370 val |= MSR_GM | MSR_EN_125MHZ; 371 if (link_status & PLSR_USB_SS) 372 memcpy(tmp, &axge_bulk_size[0], 5); 373 else if (link_status & PLSR_USB_HS) 374 memcpy(tmp, &axge_bulk_size[1], 5); 375 else 376 memcpy(tmp, &axge_bulk_size[3], 5); 377 break; 378 case IFM_100_TX: 379 val |= MSR_PS; 380 if (link_status & (PLSR_USB_SS | PLSR_USB_HS)) 381 memcpy(tmp, &axge_bulk_size[2], 5); 382 else 383 memcpy(tmp, &axge_bulk_size[3], 5); 384 break; 385 case IFM_10_T: 386 memcpy(tmp, &axge_bulk_size[3], 5); 387 break; 388 } 389 /* Rx bulk configuration. */ 390 axge_write_mem(sc, AXGE_ACCESS_MAC, 5, AXGE_RX_BULKIN_QCTRL, tmp, 5); 391 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_MSR, val); 392 done: 393 if (!locked) 394 AXGE_UNLOCK(sc); 395 } 396 397 static void 398 axge_chip_init(struct axge_softc *sc) 399 { 400 /* Power up ethernet PHY. */ 401 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_EPPRCR, 0); 402 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_EPPRCR, EPPRCR_IPRL); 403 uether_pause(&sc->sc_ue, hz / 4); 404 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CLK_SELECT, 405 AXGE_CLK_SELECT_ACS | AXGE_CLK_SELECT_BCS); 406 uether_pause(&sc->sc_ue, hz / 10); 407 } 408 409 static void 410 axge_reset(struct axge_softc *sc) 411 { 412 struct usb_config_descriptor *cd; 413 usb_error_t err; 414 415 cd = usbd_get_config_descriptor(sc->sc_ue.ue_udev); 416 417 err = usbd_req_set_config(sc->sc_ue.ue_udev, &sc->sc_lock, 418 cd->bConfigurationValue); 419 if (err) 420 DPRINTF("reset failed (ignored)\n"); 421 422 /* Wait a little while for the chip to get its brains in order. */ 423 uether_pause(&sc->sc_ue, hz / 100); 424 425 /* Reinitialize controller to achieve full reset. */ 426 axge_chip_init(sc); 427 } 428 429 static void 430 axge_attach_post(struct usb_ether *ue) 431 { 432 struct axge_softc *sc; 433 434 sc = uether_getsc(ue); 435 sc->sc_phyno = 3; 436 437 /* Initialize controller and get station address. */ 438 axge_chip_init(sc); 439 axge_read_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR, 440 ue->ue_eaddr, ETHER_ADDR_LEN); 441 } 442 443 static int 444 axge_attach_post_sub(struct usb_ether *ue) 445 { 446 struct axge_softc *sc; 447 struct ifnet *ifp; 448 int error; 449 450 sc = uether_getsc(ue); 451 ifp = uether_getifp(ue); 452 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 453 ifp->if_start = uether_start; 454 ifp->if_ioctl = axge_ioctl; 455 ifp->if_init = uether_init; 456 ifq_set_maxlen(&ifp->if_snd, ifqmaxlen); 457 ifq_set_ready(&ifp->if_snd); 458 459 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_TXCSUM | IFCAP_RXCSUM; 460 ifp->if_hwassist = AXGE_CSUM_FEATURES; 461 ifp->if_capenable = ifp->if_capabilities; 462 463 /* 464 * NB: miibus assumes that the first member of the softc 465 * of it's parent is an arpcom structure 466 */ 467 error = mii_phy_probe(ue->ue_dev, &ue->ue_miibus, 468 uether_ifmedia_upd, ue->ue_methods->ue_mii_sts); 469 470 return (error); 471 } 472 473 /* 474 * Set media options. 475 */ 476 static int 477 axge_ifmedia_upd(struct ifnet *ifp) 478 { 479 struct axge_softc *sc; 480 struct mii_data *mii; 481 struct mii_softc *miisc; 482 int error; 483 484 sc = ifp->if_softc; 485 mii = GET_MII(sc); 486 AXGE_LOCK_ASSERT(sc); 487 488 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 489 mii_phy_reset(miisc); 490 error = mii_mediachg(mii); 491 492 return (error); 493 } 494 495 /* 496 * Report current media status. 497 */ 498 static void 499 axge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 500 { 501 struct axge_softc *sc; 502 struct mii_data *mii; 503 504 sc = ifp->if_softc; 505 mii = GET_MII(sc); 506 AXGE_LOCK(sc); 507 mii_pollstat(mii); 508 ifmr->ifm_active = mii->mii_media_active; 509 ifmr->ifm_status = mii->mii_media_status; 510 AXGE_UNLOCK(sc); 511 } 512 513 /* 514 * Probe for a AX88179 chip. 515 */ 516 static int 517 axge_probe(device_t dev) 518 { 519 struct usb_attach_arg *uaa; 520 521 uaa = device_get_ivars(dev); 522 if (uaa->usb_mode != USB_MODE_HOST) 523 return (ENXIO); 524 if (uaa->info.bConfigIndex != AXGE_CONFIG_IDX) 525 return (ENXIO); 526 if (uaa->info.bIfaceIndex != AXGE_IFACE_IDX) 527 return (ENXIO); 528 529 return (usbd_lookup_id_by_uaa(axge_devs, sizeof(axge_devs), uaa)); 530 } 531 532 /* 533 * Attach the interface. Allocate softc structures, do ifmedia 534 * setup and ethernet/BPF attach. 535 */ 536 static int 537 axge_attach(device_t dev) 538 { 539 struct usb_attach_arg *uaa; 540 struct axge_softc *sc; 541 struct usb_ether *ue; 542 uint8_t iface_index; 543 int error; 544 545 uaa = device_get_ivars(dev); 546 sc = device_get_softc(dev); 547 ue = &sc->sc_ue; 548 549 device_set_usb_desc(dev); 550 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, LK_CANRECURSE); 551 552 iface_index = AXGE_IFACE_IDX; 553 error = usbd_transfer_setup(uaa->device, &iface_index, 554 sc->sc_xfer, axge_config, AXGE_N_TRANSFER, sc, &sc->sc_lock); 555 if (error) { 556 device_printf(dev, "allocating USB transfers failed\n"); 557 goto detach; 558 } 559 560 ue->ue_sc = sc; 561 ue->ue_dev = dev; 562 ue->ue_udev = uaa->device; 563 ue->ue_lock = &sc->sc_lock; 564 ue->ue_methods = &axge_ue_methods; 565 566 error = uether_ifattach(ue); 567 if (error) { 568 device_printf(dev, "could not attach interface\n"); 569 goto detach; 570 } 571 return (0); /* success */ 572 573 detach: 574 axge_detach(dev); 575 return (ENXIO); /* failure */ 576 } 577 578 static int 579 axge_detach(device_t dev) 580 { 581 struct axge_softc *sc; 582 struct usb_ether *ue; 583 584 sc = device_get_softc(dev); 585 ue = &sc->sc_ue; 586 usbd_transfer_unsetup(sc->sc_xfer, AXGE_N_TRANSFER); 587 uether_ifdetach(ue); 588 lockuninit(&sc->sc_lock); 589 590 return (0); 591 } 592 593 static void 594 axge_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 595 { 596 struct axge_softc *sc; 597 struct usb_ether *ue; 598 struct usb_page_cache *pc; 599 int actlen; 600 601 sc = usbd_xfer_softc(xfer); 602 ue = &sc->sc_ue; 603 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 604 605 switch (USB_GET_STATE(xfer)) { 606 case USB_ST_TRANSFERRED: 607 pc = usbd_xfer_get_frame(xfer, 0); 608 axge_rx_frame(ue, pc, actlen); 609 610 /* FALLTHROUGH */ 611 case USB_ST_SETUP: 612 tr_setup: 613 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 614 usbd_transfer_submit(xfer); 615 uether_rxflush(ue); 616 break; 617 618 default: 619 if (error != USB_ERR_CANCELLED) { 620 usbd_xfer_set_stall(xfer); 621 goto tr_setup; 622 } 623 break; 624 } 625 } 626 627 static void 628 axge_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 629 { 630 struct axge_softc *sc; 631 struct ifnet *ifp; 632 struct usb_page_cache *pc; 633 struct mbuf *m; 634 uint32_t txhdr; 635 int nframes, pos; 636 637 sc = usbd_xfer_softc(xfer); 638 ifp = uether_getifp(&sc->sc_ue); 639 640 switch (USB_GET_STATE(xfer)) { 641 case USB_ST_TRANSFERRED: 642 ifq_clr_oactive(&ifp->if_snd); 643 /* FALLTHROUGH */ 644 case USB_ST_SETUP: 645 tr_setup: 646 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0 || 647 ifq_is_oactive(&ifp->if_snd)) { 648 /* 649 * Don't send anything if there is no link or 650 * controller is busy. 651 */ 652 return; 653 } 654 655 for (nframes = 0; nframes < 16 && 656 !ifq_is_empty(&ifp->if_snd); nframes++) { 657 m = ifq_dequeue(&ifp->if_snd); 658 if (m == NULL) 659 break; 660 usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES, 661 nframes); 662 pos = 0; 663 pc = usbd_xfer_get_frame(xfer, nframes); 664 txhdr = htole32(m->m_pkthdr.len); 665 usbd_copy_in(pc, 0, &txhdr, sizeof(txhdr)); 666 txhdr = 0; 667 txhdr = htole32(txhdr); 668 usbd_copy_in(pc, 4, &txhdr, sizeof(txhdr)); 669 pos += 8; 670 usbd_m_copy_in(pc, pos, m, 0, m->m_pkthdr.len); 671 pos += m->m_pkthdr.len; 672 if ((pos % usbd_xfer_max_framelen(xfer)) == 0) 673 txhdr |= 0x80008000; 674 675 /* 676 * XXX 677 * Update TX packet counter here. This is not 678 * correct way but it seems that there is no way 679 * to know how many packets are sent at the end 680 * of transfer because controller combines 681 * multiple writes into single one if there is 682 * room in TX buffer of controller. 683 */ 684 IFNET_STAT_INC(ifp, opackets, 1); 685 686 /* 687 * if there's a BPF listener, bounce a copy 688 * of this frame to him: 689 */ 690 BPF_MTAP(ifp, m); 691 692 m_freem(m); 693 694 /* Set frame length. */ 695 usbd_xfer_set_frame_len(xfer, nframes, pos); 696 } 697 if (nframes != 0) { 698 usbd_xfer_set_frames(xfer, nframes); 699 usbd_transfer_submit(xfer); 700 ifq_set_oactive(&ifp->if_snd); 701 } 702 return; 703 /* NOTREACHED */ 704 default: 705 IFNET_STAT_INC(ifp, oerrors, 1); 706 ifq_clr_oactive(&ifp->if_snd); 707 708 if (error != USB_ERR_CANCELLED) { 709 usbd_xfer_set_stall(xfer); 710 goto tr_setup; 711 } 712 return; 713 714 } 715 } 716 717 static void 718 axge_tick(struct usb_ether *ue) 719 { 720 struct axge_softc *sc; 721 struct mii_data *mii; 722 723 sc = uether_getsc(ue); 724 mii = GET_MII(sc); 725 AXGE_LOCK_ASSERT(sc); 726 727 mii_tick(mii); 728 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0) { 729 axge_miibus_statchg(ue->ue_dev); 730 if ((sc->sc_flags & AXGE_FLAG_LINK) != 0) 731 axge_start(ue); 732 } 733 } 734 735 static void 736 axge_setmulti(struct usb_ether *ue) 737 { 738 struct axge_softc *sc; 739 struct ifnet *ifp; 740 struct ifmultiaddr *ifma; 741 uint32_t h; 742 uint16_t rxmode; 743 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 744 745 sc = uether_getsc(ue); 746 ifp = uether_getifp(ue); 747 h = 0; 748 AXGE_LOCK_ASSERT(sc); 749 750 rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR); 751 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 752 rxmode |= RCR_AMALL; 753 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 754 return; 755 } 756 rxmode &= ~RCR_AMALL; 757 758 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 759 if (ifma->ifma_addr->sa_family != AF_LINK) 760 continue; 761 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 762 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 763 setbit(hashtbl, h); 764 } 765 766 axge_write_mem(sc, AXGE_ACCESS_MAC, 8, AXGE_MFA, (void *)&hashtbl, 8); 767 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 768 } 769 770 static void 771 axge_setpromisc(struct usb_ether *ue) 772 { 773 struct axge_softc *sc; 774 struct ifnet *ifp; 775 uint16_t rxmode; 776 777 sc = uether_getsc(ue); 778 ifp = uether_getifp(ue); 779 rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR); 780 781 if (ifp->if_flags & IFF_PROMISC) 782 rxmode |= RCR_PRO; 783 else 784 rxmode &= ~RCR_PRO; 785 786 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 787 axge_setmulti(ue); 788 } 789 790 static void 791 axge_start(struct usb_ether *ue) 792 { 793 struct axge_softc *sc; 794 795 sc = uether_getsc(ue); 796 /* 797 * Start the USB transfers, if not already started. 798 */ 799 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_RD]); 800 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_WR]); 801 } 802 803 static void 804 axge_init(struct usb_ether *ue) 805 { 806 struct axge_softc *sc; 807 struct ifnet *ifp; 808 uint16_t rxmode; 809 810 sc = uether_getsc(ue); 811 ifp = uether_getifp(ue); 812 AXGE_LOCK_ASSERT(sc); 813 814 if ((ifp->if_flags & IFF_RUNNING) != 0) 815 return; 816 817 /* 818 * Cancel pending I/O and free all RX/TX buffers. 819 */ 820 axge_stop(ue); 821 822 axge_reset(sc); 823 824 /* Set MAC address. */ 825 axge_write_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR, 826 IF_LLADDR(ifp), ETHER_ADDR_LEN); 827 828 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLLR, 0x34); 829 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLHR, 0x52); 830 831 /* Configure TX/RX checksum offloading. */ 832 axge_csum_cfg(ue); 833 834 /* Configure RX settings. */ 835 rxmode = (RCR_AM | RCR_SO | RCR_DROP_CRCE); 836 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 837 rxmode |= RCR_IPE; 838 839 /* If we want promiscuous mode, set the allframes bit. */ 840 if (ifp->if_flags & IFF_PROMISC) 841 rxmode |= RCR_PRO; 842 843 if (ifp->if_flags & IFF_BROADCAST) 844 rxmode |= RCR_AB; 845 846 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 847 848 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_MMSR, 849 MMSR_PME_TYPE | MMSR_PME_POL | MMSR_RWMP); 850 851 /* Load the multicast filter. */ 852 axge_setmulti(ue); 853 854 usbd_xfer_set_stall(sc->sc_xfer[AXGE_BULK_DT_WR]); 855 856 ifp->if_flags |= IFF_RUNNING; 857 /* Switch to selected media. */ 858 axge_ifmedia_upd(ifp); 859 } 860 861 static void 862 axge_stop(struct usb_ether *ue) 863 { 864 struct axge_softc *sc; 865 struct ifnet *ifp; 866 867 sc = uether_getsc(ue); 868 ifp = uether_getifp(ue); 869 870 AXGE_LOCK_ASSERT(sc); 871 872 ifp->if_flags &= ~IFF_RUNNING; 873 ifq_clr_oactive(&ifp->if_snd); 874 sc->sc_flags &= ~AXGE_FLAG_LINK; 875 876 /* 877 * Stop all the transfers, if not already stopped: 878 */ 879 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_WR]); 880 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_RD]); 881 } 882 883 static int 884 axge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data, struct ucred *uc) 885 { 886 struct usb_ether *ue; 887 struct axge_softc *sc; 888 struct ifreq *ifr; 889 int error, mask, reinit; 890 891 ue = ifp->if_softc; 892 sc = uether_getsc(ue); 893 ifr = (struct ifreq *)data; 894 error = 0; 895 reinit = 0; 896 if (cmd == SIOCSIFCAP) { 897 AXGE_LOCK(sc); 898 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 899 if ((mask & IFCAP_TXCSUM) != 0 && 900 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 901 ifp->if_capenable ^= IFCAP_TXCSUM; 902 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 903 ifp->if_hwassist |= AXGE_CSUM_FEATURES; 904 else 905 ifp->if_hwassist &= ~AXGE_CSUM_FEATURES; 906 reinit++; 907 } 908 if ((mask & IFCAP_RXCSUM) != 0 && 909 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) { 910 ifp->if_capenable ^= IFCAP_RXCSUM; 911 reinit++; 912 } 913 if (reinit > 0 && ifp->if_flags & IFF_RUNNING) 914 ifp->if_flags &= ~IFF_RUNNING; 915 else 916 reinit = 0; 917 AXGE_UNLOCK(sc); 918 if (reinit > 0) 919 uether_init(ue); 920 } else 921 error = uether_ioctl(ifp, cmd, data, uc); 922 923 return (error); 924 } 925 926 static void 927 axge_rx_frame(struct usb_ether *ue, struct usb_page_cache *pc, int actlen) 928 { 929 uint32_t pos; 930 uint32_t pkt_cnt; 931 uint32_t rxhdr; 932 uint32_t pkt_hdr; 933 uint32_t hdr_off; 934 uint32_t pktlen; 935 936 /* verify we have enough data */ 937 if (actlen < (int)sizeof(rxhdr)) 938 return; 939 940 pos = 0; 941 942 usbd_copy_out(pc, actlen - sizeof(rxhdr), &rxhdr, sizeof(rxhdr)); 943 rxhdr = le32toh(rxhdr); 944 945 pkt_cnt = (uint16_t)rxhdr; 946 hdr_off = (uint16_t)(rxhdr >> 16); 947 948 while (pkt_cnt--) { 949 /* verify the header offset */ 950 if ((int)(hdr_off + sizeof(pkt_hdr)) > actlen) { 951 DPRINTF("End of packet headers\n"); 952 break; 953 } 954 if ((int)pos >= actlen) { 955 DPRINTF("Data position reached end\n"); 956 break; 957 } 958 usbd_copy_out(pc, hdr_off, &pkt_hdr, sizeof(pkt_hdr)); 959 960 pkt_hdr = le32toh(pkt_hdr); 961 pktlen = (pkt_hdr >> 16) & 0x1fff; 962 if (pkt_hdr & (AXGE_RXHDR_CRC_ERR | AXGE_RXHDR_DROP_ERR)) { 963 DPRINTF("Dropped a packet\n"); 964 IFNET_STAT_INC(uether_getifp(ue), ierrors, 1); 965 } 966 if (pktlen >= 6 && (int)(pos + pktlen) <= actlen) { 967 axge_rxeof(ue, pc, pos + 2, pktlen - 6, pkt_hdr); 968 } else { 969 DPRINTF("Invalid packet pos=%d len=%d\n", 970 (int)pos, (int)pktlen); 971 } 972 pos += (pktlen + 7) & ~7; 973 hdr_off += sizeof(pkt_hdr); 974 } 975 } 976 977 static void 978 axge_rxeof(struct usb_ether *ue, struct usb_page_cache *pc, 979 unsigned int offset, unsigned int len, uint32_t pkt_hdr) 980 { 981 struct ifnet *ifp; 982 struct mbuf *m; 983 984 ifp = uether_getifp(ue); 985 if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) { 986 IFNET_STAT_INC(ifp, ierrors, 1); 987 return; 988 } 989 990 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 991 if (m == NULL) { 992 IFNET_STAT_INC(ifp, iqdrops, 1); 993 return; 994 } 995 m->m_pkthdr.rcvif = ifp; 996 m->m_len = m->m_pkthdr.len = len + ETHER_ALIGN; 997 m_adj(m, ETHER_ALIGN); 998 999 usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 1000 1001 IFNET_STAT_INC(ifp, ipackets, 1); 1002 1003 if ((pkt_hdr & (AXGE_RXHDR_L4CSUM_ERR | AXGE_RXHDR_L3CSUM_ERR)) == 0) { 1004 if ((pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1005 AXGE_RXHDR_L4_TYPE_TCP || 1006 (pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1007 AXGE_RXHDR_L4_TYPE_UDP) { 1008 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 1009 CSUM_PSEUDO_HDR | CSUM_IP_CHECKED | CSUM_IP_VALID; 1010 m->m_pkthdr.csum_data = 0xffff; 1011 } 1012 } 1013 1014 IF_ENQUEUE(&ue->ue_rxq, m); 1015 } 1016 1017 static void 1018 axge_csum_cfg(struct usb_ether *ue) 1019 { 1020 struct axge_softc *sc; 1021 struct ifnet *ifp; 1022 uint8_t csum; 1023 1024 sc = uether_getsc(ue); 1025 AXGE_LOCK_ASSERT(sc); 1026 ifp = uether_getifp(ue); 1027 1028 csum = 0; 1029 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1030 csum |= CTCR_IP | CTCR_TCP | CTCR_UDP; 1031 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CTCR, csum); 1032 1033 csum = 0; 1034 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 1035 csum |= CRCR_IP | CRCR_TCP | CRCR_UDP; 1036 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CRCR, csum); 1037 } 1038