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#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30/* 31 * ASIX Electronics AX88178A/AX88179 USB 2.0/3.0 gigabit ethernet driver. 32 */ 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> 37#include <sys/condvar.h> 38#include <sys/kernel.h> 39#include <sys/lock.h> 40#include <sys/module.h> 41#include <sys/mutex.h> 42#include <sys/socket.h> 43#include <sys/sysctl.h> 44#include <sys/unistd.h> 45 46#include <net/if.h> 47#include <net/if_var.h> 48 49#include <dev/usb/usb.h> 50#include <dev/usb/usbdi.h> 51#include <dev/usb/usbdi_util.h> 52#include "usbdevs.h" 53 54#define USB_DEBUG_VAR axge_debug 55#include <dev/usb/usb_debug.h> 56#include <dev/usb/usb_process.h> 57 58#include <dev/usb/net/usb_ethernet.h> 59#include <dev/usb/net/if_axgereg.h> 60 61/* 62 * Various supported device vendors/products. 63 */ 64 65static 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 74static 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 89static device_probe_t axge_probe; 90static device_attach_t axge_attach; 91static device_detach_t axge_detach; 92 93static usb_callback_t axge_bulk_read_callback; 94static usb_callback_t axge_bulk_write_callback; 95 96static miibus_readreg_t axge_miibus_readreg; 97static miibus_writereg_t axge_miibus_writereg; 98static miibus_statchg_t axge_miibus_statchg; 99 100static uether_fn_t axge_attach_post; 101static uether_fn_t axge_init; 102static uether_fn_t axge_stop; 103static uether_fn_t axge_start; 104static uether_fn_t axge_tick; 105static uether_fn_t axge_setmulti; 106static uether_fn_t axge_setpromisc; 107 108static int axge_read_mem(struct axge_softc *, uint8_t, uint16_t, 109 uint16_t, void *, int); 110static void axge_write_mem(struct axge_softc *, uint8_t, uint16_t, 111 uint16_t, void *, int); 112static uint8_t axge_read_cmd_1(struct axge_softc *, uint8_t, uint16_t); 113static uint16_t axge_read_cmd_2(struct axge_softc *, uint8_t, uint16_t, 114 uint16_t); 115static void axge_write_cmd_1(struct axge_softc *, uint8_t, uint16_t, 116 uint8_t); 117static void axge_write_cmd_2(struct axge_softc *, uint8_t, uint16_t, 118 uint16_t, uint16_t); 119static void axge_chip_init(struct axge_softc *); 120static void axge_reset(struct axge_softc *); 121 122static int axge_attach_post_sub(struct usb_ether *); 123static int axge_ifmedia_upd(struct ifnet *); 124static void axge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 125static int axge_ioctl(struct ifnet *, u_long, caddr_t); 126static void axge_rx_frame(struct usb_ether *, struct usb_page_cache *, int); 127static void axge_rxeof(struct usb_ether *, struct usb_page_cache *, 128 unsigned int, unsigned int, uint32_t); 129static void axge_csum_cfg(struct usb_ether *); 130 131#define AXGE_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) 132 133#ifdef USB_DEBUG 134static int axge_debug = 0; 135 136static SYSCTL_NODE(_hw_usb, OID_AUTO, axge, CTLFLAG_RW, 0, "USB axge"); 137SYSCTL_INT(_hw_usb_axge, OID_AUTO, debug, CTLFLAG_RW, &axge_debug, 0, 138 "Debug level"); 139#endif 140 141static 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 163static 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 177static driver_t axge_driver = { 178 .name = "axge", 179 .methods = axge_methods, 180 .size = sizeof(struct axge_softc), 181}; 182 183static devclass_t axge_devclass; 184 185DRIVER_MODULE(axge, uhub, axge_driver, axge_devclass, NULL, NULL); 186DRIVER_MODULE(miibus, axge, miibus_driver, miibus_devclass, NULL, NULL); 187MODULE_DEPEND(axge, uether, 1, 1, 1); 188MODULE_DEPEND(axge, usb, 1, 1, 1); 189MODULE_DEPEND(axge, ether, 1, 1, 1); 190MODULE_DEPEND(axge, miibus, 1, 1, 1); 191MODULE_VERSION(axge, 1); 192 193static 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 206static int 207axge_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, MA_OWNED); 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 223static void 224axge_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, MA_OWNED); 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 242static uint8_t 243axge_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 251static uint16_t 252axge_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 261static void 262axge_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 267static void 268axge_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 277static int 278axge_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 = mtx_owned(&sc->sc_mtx); 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 297static int 298axge_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 = mtx_owned(&sc->sc_mtx); 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 318static void 319axge_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 = mtx_owned(&sc->sc_mtx); 331 if (!locked) 332 AXGE_LOCK(sc); 333 334 ifp = uether_getifp(&sc->sc_ue); 335 if (mii == NULL || ifp == NULL || 336 (ifp->if_drv_flags & IFF_DRV_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); 392done: 393 if (!locked) 394 AXGE_UNLOCK(sc); 395} 396 397static void 398axge_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 409static void 410axge_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_mtx, 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 429static void 430axge_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 443static int 444axge_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 = ue->ue_ifp; 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 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 458 IFQ_SET_READY(&ifp->if_snd); 459 460 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_TXCSUM | IFCAP_RXCSUM; 461 ifp->if_hwassist = AXGE_CSUM_FEATURES; 462 ifp->if_capenable = ifp->if_capabilities; 463 464 mtx_lock(&Giant); 465 error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 466 uether_ifmedia_upd, ue->ue_methods->ue_mii_sts, 467 BMSR_DEFCAPMASK, sc->sc_phyno, MII_OFFSET_ANY, MIIF_DOPAUSE); 468 mtx_unlock(&Giant); 469 470 return (error); 471} 472 473/* 474 * Set media options. 475 */ 476static int 477axge_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, MA_OWNED); 487 488 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 489 PHY_RESET(miisc); 490 error = mii_mediachg(mii); 491 492 return (error); 493} 494 495/* 496 * Report current media status. 497 */ 498static void 499axge_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 */ 516static int 517axge_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 */ 536static int 537axge_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 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 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_mtx); 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_mtx = &sc->sc_mtx; 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 573detach: 574 axge_detach(dev); 575 return (ENXIO); /* failure */ 576} 577 578static int 579axge_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 mtx_destroy(&sc->sc_mtx); 589 590 return (0); 591} 592 593static void 594axge_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: 612tr_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 627static void 628axge_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 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 643 /* FALLTHROUGH */ 644 case USB_ST_SETUP: 645tr_setup: 646 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0 || 647 (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) { 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_DRV_IS_EMPTY(&ifp->if_snd); nframes++) { 657 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 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 ifp->if_opackets++; 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 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 701 } 702 return; 703 /* NOTREACHED */ 704 default: 705 ifp->if_oerrors++; 706 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 707 708 if (error != USB_ERR_CANCELLED) { 709 usbd_xfer_set_stall(xfer); 710 goto tr_setup; 711 } 712 return; 713 714 } 715} 716 717static void 718axge_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, MA_OWNED); 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 735static void 736axge_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, MA_OWNED); 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 if_maddr_rlock(ifp); 759 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 760 if (ifma->ifma_addr->sa_family != AF_LINK) 761 continue; 762 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 763 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 764 hashtbl[h / 8] |= 1 << (h % 8); 765 } 766 if_maddr_runlock(ifp); 767 768 axge_write_mem(sc, AXGE_ACCESS_MAC, 8, AXGE_MFA, (void *)&hashtbl, 8); 769 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 770} 771 772static void 773axge_setpromisc(struct usb_ether *ue) 774{ 775 struct axge_softc *sc; 776 struct ifnet *ifp; 777 uint16_t rxmode; 778 779 sc = uether_getsc(ue); 780 ifp = uether_getifp(ue); 781 rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR); 782 783 if (ifp->if_flags & IFF_PROMISC) 784 rxmode |= RCR_PRO; 785 else 786 rxmode &= ~RCR_PRO; 787 788 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 789 axge_setmulti(ue); 790} 791 792static void 793axge_start(struct usb_ether *ue) 794{ 795 struct axge_softc *sc; 796 797 sc = uether_getsc(ue); 798 /* 799 * Start the USB transfers, if not already started. 800 */ 801 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_RD]); 802 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_WR]); 803} 804 805static void 806axge_init(struct usb_ether *ue) 807{ 808 struct axge_softc *sc; 809 struct ifnet *ifp; 810 uint16_t rxmode; 811 812 sc = uether_getsc(ue); 813 ifp = uether_getifp(ue); 814 AXGE_LOCK_ASSERT(sc, MA_OWNED); 815 816 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 817 return; 818 819 /* 820 * Cancel pending I/O and free all RX/TX buffers. 821 */ 822 axge_stop(ue); 823 824 axge_reset(sc); 825 826 /* Set MAC address. */ 827 axge_write_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR, 828 IF_LLADDR(ifp), ETHER_ADDR_LEN); 829 830 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLLR, 0x34); 831 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLHR, 0x52); 832 833 /* Configure TX/RX checksum offloading. */ 834 axge_csum_cfg(ue); 835 836 /* Configure RX settings. */ 837 rxmode = (RCR_AM | RCR_SO | RCR_DROP_CRCE); 838 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 839 rxmode |= RCR_IPE; 840 841 /* If we want promiscuous mode, set the allframes bit. */ 842 if (ifp->if_flags & IFF_PROMISC) 843 rxmode |= RCR_PRO; 844 845 if (ifp->if_flags & IFF_BROADCAST) 846 rxmode |= RCR_AB; 847 848 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 849 850 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_MMSR, 851 MMSR_PME_TYPE | MMSR_PME_POL | MMSR_RWMP); 852 853 /* Load the multicast filter. */ 854 axge_setmulti(ue); 855 856 usbd_xfer_set_stall(sc->sc_xfer[AXGE_BULK_DT_WR]); 857 858 ifp->if_drv_flags |= IFF_DRV_RUNNING; 859 /* Switch to selected media. */ 860 axge_ifmedia_upd(ifp); 861} 862 863static void 864axge_stop(struct usb_ether *ue) 865{ 866 struct axge_softc *sc; 867 struct ifnet *ifp; 868 869 sc = uether_getsc(ue); 870 ifp = uether_getifp(ue); 871 872 AXGE_LOCK_ASSERT(sc, MA_OWNED); 873 874 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 875 sc->sc_flags &= ~AXGE_FLAG_LINK; 876 877 /* 878 * Stop all the transfers, if not already stopped: 879 */ 880 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_WR]); 881 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_RD]); 882} 883 884static int 885axge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 886{ 887 struct usb_ether *ue; 888 struct axge_softc *sc; 889 struct ifreq *ifr; 890 int error, mask, reinit; 891 892 ue = ifp->if_softc; 893 sc = uether_getsc(ue); 894 ifr = (struct ifreq *)data; 895 error = 0; 896 reinit = 0; 897 if (cmd == SIOCSIFCAP) { 898 AXGE_LOCK(sc); 899 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 900 if ((mask & IFCAP_TXCSUM) != 0 && 901 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 902 ifp->if_capenable ^= IFCAP_TXCSUM; 903 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 904 ifp->if_hwassist |= AXGE_CSUM_FEATURES; 905 else 906 ifp->if_hwassist &= ~AXGE_CSUM_FEATURES; 907 reinit++; 908 } 909 if ((mask & IFCAP_RXCSUM) != 0 && 910 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) { 911 ifp->if_capenable ^= IFCAP_RXCSUM; 912 reinit++; 913 } 914 if (reinit > 0 && ifp->if_drv_flags & IFF_DRV_RUNNING) 915 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 916 else 917 reinit = 0; 918 AXGE_UNLOCK(sc); 919 if (reinit > 0) 920 uether_init(ue); 921 } else 922 error = uether_ioctl(ifp, cmd, data); 923 924 return (error); 925} 926 927static void 928axge_rx_frame(struct usb_ether *ue, struct usb_page_cache *pc, int actlen) 929{ 930 uint32_t pos; 931 uint32_t pkt_cnt; 932 uint32_t rxhdr; 933 uint32_t pkt_hdr; 934 uint32_t hdr_off; 935 uint32_t pktlen; 936 937 /* verify we have enough data */ 938 if (actlen < (int)sizeof(rxhdr)) 939 return; 940 941 pos = 0; 942 943 usbd_copy_out(pc, actlen - sizeof(rxhdr), &rxhdr, sizeof(rxhdr)); 944 rxhdr = le32toh(rxhdr); 945 946 pkt_cnt = (uint16_t)rxhdr; 947 hdr_off = (uint16_t)(rxhdr >> 16); 948 949 while (pkt_cnt--) { 950 /* verify the header offset */ 951 if ((int)(hdr_off + sizeof(pkt_hdr)) > actlen) { 952 DPRINTF("End of packet headers\n"); 953 break; 954 } 955 if ((int)pos >= actlen) { 956 DPRINTF("Data position reached end\n"); 957 break; 958 } 959 usbd_copy_out(pc, hdr_off, &pkt_hdr, sizeof(pkt_hdr)); 960 961 pkt_hdr = le32toh(pkt_hdr); 962 pktlen = (pkt_hdr >> 16) & 0x1fff; 963 if (pkt_hdr & (AXGE_RXHDR_CRC_ERR | AXGE_RXHDR_DROP_ERR)) { 964 DPRINTF("Dropped a packet\n"); 965 ue->ue_ifp->if_ierrors++; 966 } 967 if (pktlen >= 6 && (int)(pos + pktlen) <= actlen) { 968 axge_rxeof(ue, pc, pos + 2, pktlen - 6, pkt_hdr); 969 } else { 970 DPRINTF("Invalid packet pos=%d len=%d\n", 971 (int)pos, (int)pktlen); 972 } 973 pos += (pktlen + 7) & ~7; 974 hdr_off += sizeof(pkt_hdr); 975 } 976} 977 978static void 979axge_rxeof(struct usb_ether *ue, struct usb_page_cache *pc, 980 unsigned int offset, unsigned int len, uint32_t pkt_hdr) 981{ 982 struct ifnet *ifp; 983 struct mbuf *m; 984 985 ifp = ue->ue_ifp; 986 if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) { 987 ifp->if_ierrors++; 988 return; 989 } 990 991 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 992 if (m == NULL) { 993 ifp->if_iqdrops++; 994 return; 995 } 996 m->m_pkthdr.rcvif = ifp; 997 m->m_len = m->m_pkthdr.len = len + ETHER_ALIGN; 998 m_adj(m, ETHER_ALIGN); 999 1000 usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 1001 1002 ifp->if_ipackets++; 1003 1004 if ((pkt_hdr & (AXGE_RXHDR_L4CSUM_ERR | AXGE_RXHDR_L3CSUM_ERR)) == 0) { 1005 if ((pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1006 AXGE_RXHDR_L4_TYPE_TCP || 1007 (pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1008 AXGE_RXHDR_L4_TYPE_UDP) { 1009 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 1010 CSUM_PSEUDO_HDR | CSUM_IP_CHECKED | CSUM_IP_VALID; 1011 m->m_pkthdr.csum_data = 0xffff; 1012 } 1013 } 1014 1015 _IF_ENQUEUE(&ue->ue_rxq, m); 1016} 1017 1018static void 1019axge_csum_cfg(struct usb_ether *ue) 1020{ 1021 struct axge_softc *sc; 1022 struct ifnet *ifp; 1023 uint8_t csum; 1024 1025 sc = uether_getsc(ue); 1026 AXGE_LOCK_ASSERT(sc, MA_OWNED); 1027 ifp = uether_getifp(ue); 1028 1029 csum = 0; 1030 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1031 csum |= CTCR_IP | CTCR_TCP | CTCR_UDP; 1032 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CTCR, csum); 1033 1034 csum = 0; 1035 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 1036 csum |= CRCR_IP | CRCR_TCP | CRCR_UDP; 1037 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CRCR, csum); 1038} 1039