if_axge.c revision 266738
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: head/sys/dev/usb/net/if_axge.c 266738 2014-05-27 08:14:54Z kevlo $"); 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} 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 int axge_rx_frame(struct usb_ether *, struct usb_page_cache *, int); 127static int 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 = 20480, 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 if (axge_rx_frame(ue, pc, actlen) != 0) 609 goto tr_setup; 610 611 /* FALLTHROUGH */ 612 case USB_ST_SETUP: 613tr_setup: 614 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 615 usbd_transfer_submit(xfer); 616 uether_rxflush(ue); 617 return; 618 619 default: 620 if (error != USB_ERR_CANCELLED) { 621 usbd_xfer_set_stall(xfer); 622 goto tr_setup; 623 } 624 return; 625 626 } 627} 628 629static void 630axge_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 631{ 632 struct axge_softc *sc; 633 struct ifnet *ifp; 634 struct usb_page_cache *pc; 635 struct mbuf *m; 636 uint32_t txhdr; 637 int nframes, pos; 638 639 sc = usbd_xfer_softc(xfer); 640 ifp = uether_getifp(&sc->sc_ue); 641 642 switch (USB_GET_STATE(xfer)) { 643 case USB_ST_TRANSFERRED: 644 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 645 /* FALLTHROUGH */ 646 case USB_ST_SETUP: 647tr_setup: 648 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0 || 649 (ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) { 650 /* 651 * Don't send anything if there is no link or 652 * controller is busy. 653 */ 654 return; 655 } 656 657 for (nframes = 0; nframes < 16 && 658 !IFQ_DRV_IS_EMPTY(&ifp->if_snd); nframes++) { 659 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 660 if (m == NULL) 661 break; 662 usbd_xfer_set_frame_offset(xfer, nframes * MCLBYTES, 663 nframes); 664 pos = 0; 665 pc = usbd_xfer_get_frame(xfer, nframes); 666 txhdr = htole32(m->m_pkthdr.len); 667 usbd_copy_in(pc, 0, &txhdr, sizeof(txhdr)); 668 txhdr = 0; 669 txhdr = htole32(txhdr); 670 usbd_copy_in(pc, 4, &txhdr, sizeof(txhdr)); 671 pos += 8; 672 usbd_m_copy_in(pc, pos, m, 0, m->m_pkthdr.len); 673 pos += m->m_pkthdr.len; 674 if ((pos % usbd_xfer_max_framelen(xfer)) == 0) 675 txhdr |= 0x80008000; 676 677 /* 678 * XXX 679 * Update TX packet counter here. This is not 680 * correct way but it seems that there is no way 681 * to know how many packets are sent at the end 682 * of transfer because controller combines 683 * multiple writes into single one if there is 684 * room in TX buffer of controller. 685 */ 686 ifp->if_opackets++; 687 688 /* 689 * if there's a BPF listener, bounce a copy 690 * of this frame to him: 691 */ 692 BPF_MTAP(ifp, m); 693 694 m_freem(m); 695 696 /* Set frame length. */ 697 usbd_xfer_set_frame_len(xfer, nframes, pos); 698 } 699 if (nframes != 0) { 700 usbd_xfer_set_frames(xfer, nframes); 701 usbd_transfer_submit(xfer); 702 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 703 } 704 return; 705 /* NOTREACHED */ 706 default: 707 ifp->if_oerrors++; 708 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 709 710 if (error != USB_ERR_CANCELLED) { 711 usbd_xfer_set_stall(xfer); 712 goto tr_setup; 713 } 714 return; 715 716 } 717} 718 719static void 720axge_tick(struct usb_ether *ue) 721{ 722 struct axge_softc *sc; 723 struct mii_data *mii; 724 725 sc = uether_getsc(ue); 726 mii = GET_MII(sc); 727 AXGE_LOCK_ASSERT(sc, MA_OWNED); 728 729 mii_tick(mii); 730 if ((sc->sc_flags & AXGE_FLAG_LINK) == 0) { 731 axge_miibus_statchg(ue->ue_dev); 732 if ((sc->sc_flags & AXGE_FLAG_LINK) != 0) 733 axge_start(ue); 734 } 735} 736 737static void 738axge_setmulti(struct usb_ether *ue) 739{ 740 struct axge_softc *sc; 741 struct ifnet *ifp; 742 struct ifmultiaddr *ifma; 743 uint32_t h; 744 uint16_t rxmode; 745 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 746 747 sc = uether_getsc(ue); 748 ifp = uether_getifp(ue); 749 h = 0; 750 AXGE_LOCK_ASSERT(sc, MA_OWNED); 751 752 rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR); 753 if (ifp->if_flags & (IFF_ALLMULTI | IFF_PROMISC)) { 754 rxmode |= RCR_AMALL; 755 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 756 return; 757 } 758 rxmode &= ~RCR_AMALL; 759 760 if_maddr_rlock(ifp); 761 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 762 if (ifma->ifma_addr->sa_family != AF_LINK) 763 continue; 764 h = ether_crc32_be(LLADDR((struct sockaddr_dl *) 765 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26; 766 hashtbl[h / 8] |= 1 << (h % 8); 767 } 768 if_maddr_runlock(ifp); 769 770 axge_write_mem(sc, AXGE_ACCESS_MAC, 8, AXGE_MFA, (void *)&hashtbl, 8); 771 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 772} 773 774static void 775axge_setpromisc(struct usb_ether *ue) 776{ 777 struct axge_softc *sc; 778 struct ifnet *ifp; 779 uint16_t rxmode; 780 781 sc = uether_getsc(ue); 782 ifp = uether_getifp(ue); 783 rxmode = axge_read_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR); 784 785 if (ifp->if_flags & IFF_PROMISC) 786 rxmode |= RCR_PRO; 787 else 788 rxmode &= ~RCR_PRO; 789 790 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 791 axge_setmulti(ue); 792} 793 794static void 795axge_start(struct usb_ether *ue) 796{ 797 struct axge_softc *sc; 798 799 sc = uether_getsc(ue); 800 /* 801 * Start the USB transfers, if not already started. 802 */ 803 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_RD]); 804 usbd_transfer_start(sc->sc_xfer[AXGE_BULK_DT_WR]); 805} 806 807static void 808axge_init(struct usb_ether *ue) 809{ 810 struct axge_softc *sc; 811 struct ifnet *ifp; 812 uint16_t rxmode; 813 814 sc = uether_getsc(ue); 815 ifp = uether_getifp(ue); 816 AXGE_LOCK_ASSERT(sc, MA_OWNED); 817 818 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 819 return; 820 821 /* 822 * Cancel pending I/O and free all RX/TX buffers. 823 */ 824 axge_stop(ue); 825 826 axge_reset(sc); 827 828 /* Set MAC address. */ 829 axge_write_mem(sc, AXGE_ACCESS_MAC, ETHER_ADDR_LEN, AXGE_NIDR, 830 IF_LLADDR(ifp), ETHER_ADDR_LEN); 831 832 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLLR, 0x34); 833 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_PWLHR, 0x52); 834 835 /* Configure TX/RX checksum offloading. */ 836 axge_csum_cfg(ue); 837 838 /* Configure RX settings. */ 839 rxmode = (RCR_AM | RCR_SO | RCR_DROP_CRCE); 840 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 841 rxmode |= RCR_IPE; 842 843 /* If we want promiscuous mode, set the allframes bit. */ 844 if (ifp->if_flags & IFF_PROMISC) 845 rxmode |= RCR_PRO; 846 847 if (ifp->if_flags & IFF_BROADCAST) 848 rxmode |= RCR_AB; 849 850 axge_write_cmd_2(sc, AXGE_ACCESS_MAC, 2, AXGE_RCR, rxmode); 851 852 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_MMSR, 853 MMSR_PME_TYPE | MMSR_PME_POL | MMSR_RWMP); 854 855 /* Load the multicast filter. */ 856 axge_setmulti(ue); 857 858 usbd_xfer_set_stall(sc->sc_xfer[AXGE_BULK_DT_WR]); 859 860 ifp->if_drv_flags |= IFF_DRV_RUNNING; 861 /* Switch to selected media. */ 862 axge_ifmedia_upd(ifp); 863} 864 865static void 866axge_stop(struct usb_ether *ue) 867{ 868 struct axge_softc *sc; 869 struct ifnet *ifp; 870 871 sc = uether_getsc(ue); 872 ifp = uether_getifp(ue); 873 874 AXGE_LOCK_ASSERT(sc, MA_OWNED); 875 876 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 877 sc->sc_flags &= ~AXGE_FLAG_LINK; 878 879 /* 880 * Stop all the transfers, if not already stopped: 881 */ 882 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_WR]); 883 usbd_transfer_stop(sc->sc_xfer[AXGE_BULK_DT_RD]); 884} 885 886static int 887axge_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 888{ 889 struct usb_ether *ue; 890 struct axge_softc *sc; 891 struct ifreq *ifr; 892 int error, mask, reinit; 893 894 ue = ifp->if_softc; 895 sc = uether_getsc(ue); 896 ifr = (struct ifreq *)data; 897 error = 0; 898 reinit = 0; 899 if (cmd == SIOCSIFCAP) { 900 AXGE_LOCK(sc); 901 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 902 if ((mask & IFCAP_TXCSUM) != 0 && 903 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 904 ifp->if_capenable ^= IFCAP_TXCSUM; 905 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 906 ifp->if_hwassist |= AXGE_CSUM_FEATURES; 907 else 908 ifp->if_hwassist &= ~AXGE_CSUM_FEATURES; 909 reinit++; 910 } 911 if ((mask & IFCAP_RXCSUM) != 0 && 912 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) { 913 ifp->if_capenable ^= IFCAP_RXCSUM; 914 reinit++; 915 } 916 if (reinit > 0 && ifp->if_drv_flags & IFF_DRV_RUNNING) 917 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 918 else 919 reinit = 0; 920 AXGE_UNLOCK(sc); 921 if (reinit > 0) 922 uether_init(ue); 923 } else 924 error = uether_ioctl(ifp, cmd, data); 925 926 return (error); 927} 928 929static int 930axge_rx_frame(struct usb_ether *ue, struct usb_page_cache *pc, int actlen) 931{ 932 int error, pos; 933 int pkt_cnt; 934 uint32_t rxhdr, pkt_hdr; 935 uint16_t hdr_off; 936 uint16_t len, pktlen; 937 938 pos = 0; 939 len = 0; 940 error = 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 usbd_copy_out(pc, hdr_off, &pkt_hdr, sizeof(pkt_hdr)); 949 950 while (pkt_cnt > 0) { 951 if ((int)(sizeof(pkt_hdr)) > actlen) { 952 error = EINVAL; 953 break; 954 } 955 pkt_hdr = le32toh(pkt_hdr); 956 pktlen = (pkt_hdr >> 16) & 0x1fff; 957 if ((pkt_hdr & AXGE_RXHDR_CRC_ERR) || 958 (pkt_hdr & AXGE_RXHDR_DROP_ERR)) 959 ue->ue_ifp->if_ierrors++; 960 axge_rxeof(ue, pc, pos + 2, pktlen - 6, pkt_hdr); 961 len = (pktlen + 7) & ~7; 962 pos += len; 963 pkt_hdr++; 964 pkt_cnt--; 965 } 966 967 if (error != 0) 968 ue->ue_ifp->if_ierrors++; 969 return (error); 970} 971 972static int 973axge_rxeof(struct usb_ether *ue, struct usb_page_cache *pc, 974 unsigned int offset, unsigned int len, uint32_t pkt_hdr) 975{ 976 struct ifnet *ifp; 977 struct mbuf *m; 978 979 ifp = ue->ue_ifp; 980 if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) { 981 ifp->if_ierrors++; 982 return (EINVAL); 983 } 984 985 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 986 if (m == NULL) { 987 ifp->if_iqdrops++; 988 return (ENOMEM); 989 } 990 m->m_len = m->m_pkthdr.len = MCLBYTES; 991 m_adj(m, ETHER_ALIGN); 992 993 usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 994 995 ifp->if_ipackets++; 996 m->m_pkthdr.rcvif = ifp; 997 m->m_pkthdr.len = m->m_len = len; 998 999 if ((pkt_hdr & (AXGE_RXHDR_L4CSUM_ERR | AXGE_RXHDR_L3CSUM_ERR)) == 0) { 1000 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED | CSUM_IP_VALID; 1001 if ((pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1002 AXGE_RXHDR_L4_TYPE_TCP || 1003 (pkt_hdr & AXGE_RXHDR_L4_TYPE_MASK) == 1004 AXGE_RXHDR_L4_TYPE_UDP) { 1005 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID | 1006 CSUM_PSEUDO_HDR; 1007 m->m_pkthdr.csum_data = 0xffff; 1008 } 1009 } 1010 1011 _IF_ENQUEUE(&ue->ue_rxq, m); 1012 return (0); 1013} 1014 1015static void 1016axge_csum_cfg(struct usb_ether *ue) 1017{ 1018 struct axge_softc *sc; 1019 struct ifnet *ifp; 1020 uint8_t csum; 1021 1022 sc = uether_getsc(ue); 1023 AXGE_LOCK_ASSERT(sc, MA_OWNED); 1024 ifp = uether_getifp(ue); 1025 1026 csum = 0; 1027 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1028 csum |= CTCR_IP | CTCR_TCP | CTCR_UDP; 1029 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CTCR, csum); 1030 1031 csum = 0; 1032 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 1033 csum |= CRCR_IP | CRCR_TCP | CRCR_UDP; 1034 axge_write_cmd_1(sc, AXGE_ACCESS_MAC, AXGE_CRCR, csum); 1035} 1036