if_kue.c revision 1.42
1 /* $NetBSD: if_kue.c,v 1.42 2001/07/16 13:54:23 augustss Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul (at) ee.columbia.edu>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $ 34 */ 35 36 /* 37 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver. 38 * 39 * Written by Bill Paul <wpaul (at) ee.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44 /* 45 * The KLSI USB to ethernet adapter chip contains an USB serial interface, 46 * ethernet MAC and embedded microcontroller (called the QT Engine). 47 * The chip must have firmware loaded into it before it will operate. 48 * Packets are passed between the chip and host via bulk transfers. 49 * There is an interrupt endpoint mentioned in the software spec, however 50 * it's currently unused. This device is 10Mbps half-duplex only, hence 51 * there is no media selection logic. The MAC supports a 128 entry 52 * multicast filter, though the exact size of the filter can depend 53 * on the firmware. Curiously, while the software spec describes various 54 * ethernet statistics counters, my sample adapter and firmware combination 55 * claims not to support any statistics counters at all. 56 * 57 * Note that once we load the firmware in the device, we have to be 58 * careful not to load it again: if you restart your computer but 59 * leave the adapter attached to the USB controller, it may remain 60 * powered on and retain its firmware. In this case, we don't need 61 * to load the firmware a second time. 62 * 63 * Special thanks to Rob Furr for providing an ADS Technologies 64 * adapter for development and testing. No monkeys were harmed during 65 * the development of this driver. 66 */ 67 68 /* 69 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 70 */ 71 72 #if defined(__NetBSD__) 73 #include "opt_inet.h" 74 #include "opt_ns.h" 75 #include "bpfilter.h" 76 #include "rnd.h" 77 #elif defined(__OpenBSD__) 78 #include "bpfilter.h" 79 #endif 80 81 #include <sys/param.h> 82 #include <sys/systm.h> 83 #include <sys/sockio.h> 84 #include <sys/mbuf.h> 85 #include <sys/malloc.h> 86 #include <sys/kernel.h> 87 #include <sys/socket.h> 88 #include <sys/device.h> 89 #include <sys/proc.h> 90 91 #if NRND > 0 92 #include <sys/rnd.h> 93 #endif 94 95 #include <net/if.h> 96 #if defined(__NetBSD__) 97 #include <net/if_arp.h> 98 #endif 99 #include <net/if_dl.h> 100 101 #if NBPFILTER > 0 102 #include <net/bpf.h> 103 #endif 104 105 #if defined(__NetBSD__) 106 #include <net/if_ether.h> 107 #ifdef INET 108 #include <netinet/in.h> 109 #include <netinet/if_inarp.h> 110 #endif 111 #endif /* defined (__NetBSD__) */ 112 113 #if defined(__OpenBSD__) 114 #ifdef INET 115 #include <netinet/in.h> 116 #include <netinet/in_systm.h> 117 #include <netinet/in_var.h> 118 #include <netinet/ip.h> 119 #include <netinet/if_ether.h> 120 #endif 121 #endif /* defined (__OpenBSD__) */ 122 123 #ifdef NS 124 #include <netns/ns.h> 125 #include <netns/ns_if.h> 126 #endif 127 128 #include <dev/usb/usb.h> 129 #include <dev/usb/usbdi.h> 130 #include <dev/usb/usbdi_util.h> 131 #include <dev/usb/usbdevs.h> 132 133 #include <dev/usb/if_kuereg.h> 134 #include <dev/usb/kue_fw.h> 135 136 #ifdef KUE_DEBUG 137 #define DPRINTF(x) if (kuedebug) logprintf x 138 #define DPRINTFN(n,x) if (kuedebug >= (n)) logprintf x 139 int kuedebug = 0; 140 #else 141 #define DPRINTF(x) 142 #define DPRINTFN(n,x) 143 #endif 144 145 /* 146 * Various supported device vendors/products. 147 */ 148 Static const struct kue_type kue_devs[] = { 149 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 150 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 151 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 152 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 153 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 154 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 155 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 156 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 157 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 158 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 159 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 160 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 161 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 162 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 163 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 164 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 165 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 166 { 0, 0 } 167 }; 168 169 USB_DECLARE_DRIVER(kue); 170 171 Static int kue_tx_list_init(struct kue_softc *); 172 Static int kue_rx_list_init(struct kue_softc *); 173 Static int kue_newbuf(struct kue_softc *, struct kue_chain *,struct mbuf *); 174 Static int kue_send(struct kue_softc *, struct mbuf *, int); 175 Static int kue_open_pipes(struct kue_softc *); 176 Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 177 Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 178 Static void kue_start(struct ifnet *); 179 Static int kue_ioctl(struct ifnet *, u_long, caddr_t); 180 Static void kue_init(void *); 181 Static void kue_stop(struct kue_softc *); 182 Static void kue_watchdog(struct ifnet *); 183 184 Static void kue_setmulti(struct kue_softc *); 185 Static void kue_reset(struct kue_softc *); 186 187 Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t, 188 u_int16_t, void *, u_int32_t); 189 Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t); 190 Static int kue_load_fw(struct kue_softc *); 191 192 Static usbd_status 193 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word) 194 { 195 usb_device_request_t req; 196 197 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 198 199 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 200 req.bRequest = breq; 201 USETW(req.wValue, word); 202 USETW(req.wIndex, 0); 203 USETW(req.wLength, 0); 204 205 return (usbd_do_request(sc->kue_udev, &req, NULL)); 206 } 207 208 Static usbd_status 209 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val, 210 void *data, u_int32_t len) 211 { 212 usb_device_request_t req; 213 214 DPRINTFN(10,("%s: %s: enter, len=%d\n", USBDEVNAME(sc->kue_dev), 215 __FUNCTION__, len)); 216 217 if (rw == KUE_CTL_WRITE) 218 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 219 else 220 req.bmRequestType = UT_READ_VENDOR_DEVICE; 221 222 req.bRequest = breq; 223 USETW(req.wValue, val); 224 USETW(req.wIndex, 0); 225 USETW(req.wLength, len); 226 227 return (usbd_do_request(sc->kue_udev, &req, data)); 228 } 229 230 Static int 231 kue_load_fw(struct kue_softc *sc) 232 { 233 usb_device_descriptor_t dd; 234 usbd_status err; 235 236 DPRINTFN(1,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 237 238 /* 239 * First, check if we even need to load the firmware. 240 * If the device was still attached when the system was 241 * rebooted, it may already have firmware loaded in it. 242 * If this is the case, we don't need to do it again. 243 * And in fact, if we try to load it again, we'll hang, 244 * so we have to avoid this condition if we don't want 245 * to look stupid. 246 * 247 * We can test this quickly by checking the bcdRevision 248 * code. The NIC will return a different revision code if 249 * it's probed while the firmware is still loaded and 250 * running. 251 */ 252 if (usbd_get_device_desc(sc->kue_udev, &dd)) 253 return (EIO); 254 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 255 printf("%s: warm boot, no firmware download\n", 256 USBDEVNAME(sc->kue_dev)); 257 return (0); 258 } 259 260 printf("%s: cold boot, downloading firmware\n", 261 USBDEVNAME(sc->kue_dev)); 262 263 /* Load code segment */ 264 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 265 USBDEVNAME(sc->kue_dev))); 266 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 267 0, (void *)kue_code_seg, sizeof(kue_code_seg)); 268 if (err) { 269 printf("%s: failed to load code segment: %s\n", 270 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 271 return (EIO); 272 } 273 274 /* Load fixup segment */ 275 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 276 USBDEVNAME(sc->kue_dev))); 277 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 278 0, (void *)kue_fix_seg, sizeof(kue_fix_seg)); 279 if (err) { 280 printf("%s: failed to load fixup segment: %s\n", 281 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 282 return (EIO); 283 } 284 285 /* Send trigger command. */ 286 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 287 USBDEVNAME(sc->kue_dev))); 288 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 289 0, (void *)kue_trig_seg, sizeof(kue_trig_seg)); 290 if (err) { 291 printf("%s: failed to load trigger segment: %s\n", 292 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 293 return (EIO); 294 } 295 296 usbd_delay_ms(sc->kue_udev, 10); 297 298 /* 299 * Reload device descriptor. 300 * Why? The chip without the firmware loaded returns 301 * one revision code. The chip with the firmware 302 * loaded and running returns a *different* revision 303 * code. This confuses the quirk mechanism, which is 304 * dependent on the revision data. 305 */ 306 (void)usbd_reload_device_desc(sc->kue_udev); 307 308 DPRINTFN(1,("%s: %s: done\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 309 310 /* Reset the adapter. */ 311 kue_reset(sc); 312 313 return (0); 314 } 315 316 Static void 317 kue_setmulti(struct kue_softc *sc) 318 { 319 struct ifnet *ifp = GET_IFP(sc); 320 struct ether_multi *enm; 321 struct ether_multistep step; 322 int i; 323 324 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 325 326 if (ifp->if_flags & IFF_PROMISC) { 327 allmulti: 328 ifp->if_flags |= IFF_ALLMULTI; 329 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 330 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 331 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 332 return; 333 } 334 335 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 336 337 i = 0; 338 #if defined (__NetBSD__) 339 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 340 #else 341 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 342 #endif 343 while (enm != NULL) { 344 if (i == KUE_MCFILTCNT(sc) || 345 memcmp(enm->enm_addrlo, enm->enm_addrhi, 346 ETHER_ADDR_LEN) != 0) 347 goto allmulti; 348 349 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 350 ETHER_NEXT_MULTI(step, enm); 351 i++; 352 } 353 354 ifp->if_flags &= ~IFF_ALLMULTI; 355 356 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 357 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 358 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 359 360 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 361 } 362 363 /* 364 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 365 * done after the firmware is loaded into the adapter in order to 366 * bring it into proper operation. 367 */ 368 Static void 369 kue_reset(struct kue_softc *sc) 370 { 371 usbd_status err; 372 373 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 374 375 err = usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1); 376 if (err) 377 printf("%s: reset failed\n", USBDEVNAME(sc->kue_dev)); 378 379 /* Wait a little while for the chip to get its brains in order. */ 380 usbd_delay_ms(sc->kue_udev, 10); 381 } 382 383 /* 384 * Probe for a KLSI chip. 385 */ 386 USB_MATCH(kue) 387 { 388 USB_MATCH_START(kue, uaa); 389 const struct kue_type *t; 390 391 DPRINTFN(25,("kue_match: enter\n")); 392 393 if (uaa->iface != NULL) 394 return (UMATCH_NONE); 395 396 for (t = kue_devs; t->kue_vid != 0; t++) 397 if (uaa->vendor == t->kue_vid && uaa->product == t->kue_did) 398 return (UMATCH_VENDOR_PRODUCT); 399 400 return (UMATCH_NONE); 401 } 402 403 /* 404 * Attach the interface. Allocate softc structures, do 405 * setup and ethernet/BPF attach. 406 */ 407 USB_ATTACH(kue) 408 { 409 USB_ATTACH_START(kue, sc, uaa); 410 char devinfo[1024]; 411 int s; 412 struct ifnet *ifp; 413 usbd_device_handle dev = uaa->device; 414 usbd_interface_handle iface; 415 usbd_status err; 416 usb_interface_descriptor_t *id; 417 usb_endpoint_descriptor_t *ed; 418 int i; 419 420 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 421 422 usbd_devinfo(dev, 0, devinfo); 423 USB_ATTACH_SETUP; 424 printf("%s: %s\n", USBDEVNAME(sc->kue_dev), devinfo); 425 426 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 427 if (err) { 428 printf("%s: setting config no failed\n", 429 USBDEVNAME(sc->kue_dev)); 430 USB_ATTACH_ERROR_RETURN; 431 } 432 433 sc->kue_udev = dev; 434 sc->kue_product = uaa->product; 435 sc->kue_vendor = uaa->vendor; 436 437 /* Load the firmware into the NIC. */ 438 if (kue_load_fw(sc)) { 439 printf("%s: loading firmware failed\n", 440 USBDEVNAME(sc->kue_dev)); 441 USB_ATTACH_ERROR_RETURN; 442 } 443 444 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 445 if (err) { 446 printf("%s: getting interface handle failed\n", 447 USBDEVNAME(sc->kue_dev)); 448 USB_ATTACH_ERROR_RETURN; 449 } 450 451 sc->kue_iface = iface; 452 id = usbd_get_interface_descriptor(iface); 453 454 /* Find endpoints. */ 455 for (i = 0; i < id->bNumEndpoints; i++) { 456 ed = usbd_interface2endpoint_descriptor(iface, i); 457 if (ed == NULL) { 458 printf("%s: couldn't get ep %d\n", 459 USBDEVNAME(sc->kue_dev), i); 460 USB_ATTACH_ERROR_RETURN; 461 } 462 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 463 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 464 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 465 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 466 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 467 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 468 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 469 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 470 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 471 } 472 } 473 474 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 475 printf("%s: missing endpoint\n", USBDEVNAME(sc->kue_dev)); 476 USB_ATTACH_ERROR_RETURN; 477 } 478 479 /* Read ethernet descriptor */ 480 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 481 0, &sc->kue_desc, sizeof(sc->kue_desc)); 482 if (err) { 483 printf("%s: could not read Ethernet descriptor\n", 484 USBDEVNAME(sc->kue_dev)); 485 USB_ATTACH_ERROR_RETURN; 486 } 487 488 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 489 M_USBDEV, M_NOWAIT); 490 if (sc->kue_mcfilters == NULL) { 491 printf("%s: no memory for multicast filter buffer\n", 492 USBDEVNAME(sc->kue_dev)); 493 USB_ATTACH_ERROR_RETURN; 494 } 495 496 s = splnet(); 497 498 /* 499 * A KLSI chip was detected. Inform the world. 500 */ 501 printf("%s: Ethernet address %s\n", USBDEVNAME(sc->kue_dev), 502 ether_sprintf(sc->kue_desc.kue_macaddr)); 503 504 /* Initialize interface info.*/ 505 ifp = GET_IFP(sc); 506 ifp->if_softc = sc; 507 ifp->if_mtu = ETHERMTU; 508 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 509 ifp->if_ioctl = kue_ioctl; 510 ifp->if_start = kue_start; 511 ifp->if_watchdog = kue_watchdog; 512 #if defined(__OpenBSD__) 513 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 514 #endif 515 strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ); 516 517 IFQ_SET_READY(&ifp->if_snd); 518 519 /* Attach the interface. */ 520 if_attach(ifp); 521 Ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 522 #if NRND > 0 523 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev), 524 RND_TYPE_NET, 0); 525 #endif 526 527 sc->kue_attached = 1; 528 splx(s); 529 530 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 531 USBDEV(sc->kue_dev)); 532 533 USB_ATTACH_SUCCESS_RETURN; 534 } 535 536 USB_DETACH(kue) 537 { 538 USB_DETACH_START(kue, sc); 539 struct ifnet *ifp = GET_IFP(sc); 540 int s; 541 542 s = splusb(); /* XXX why? */ 543 544 if (sc->kue_mcfilters != NULL) { 545 free(sc->kue_mcfilters, M_USBDEV); 546 sc->kue_mcfilters = NULL; 547 } 548 549 if (!sc->kue_attached) { 550 /* Detached before attached finished, so just bail out. */ 551 splx(s); 552 return (0); 553 } 554 555 if (ifp->if_flags & IFF_RUNNING) 556 kue_stop(sc); 557 558 #if defined(__NetBSD__) 559 #if NRND > 0 560 rnd_detach_source(&sc->rnd_source); 561 #endif 562 ether_ifdetach(ifp); 563 #endif /* __NetBSD__ */ 564 565 if_detach(ifp); 566 567 #ifdef DIAGNOSTIC 568 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 569 sc->kue_ep[KUE_ENDPT_RX] != NULL || 570 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 571 printf("%s: detach has active endpoints\n", 572 USBDEVNAME(sc->kue_dev)); 573 #endif 574 575 sc->kue_attached = 0; 576 splx(s); 577 578 return (0); 579 } 580 581 int 582 kue_activate(device_ptr_t self, enum devact act) 583 { 584 struct kue_softc *sc = (struct kue_softc *)self; 585 586 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 587 588 switch (act) { 589 case DVACT_ACTIVATE: 590 return (EOPNOTSUPP); 591 break; 592 593 case DVACT_DEACTIVATE: 594 #if defined(__NetBSD__) 595 /* Deactivate the interface. */ 596 if_deactivate(&sc->kue_ec.ec_if); 597 #endif 598 sc->kue_dying = 1; 599 break; 600 } 601 return (0); 602 } 603 604 /* 605 * Initialize an RX descriptor and attach an MBUF cluster. 606 */ 607 Static int 608 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m) 609 { 610 struct mbuf *m_new = NULL; 611 612 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 613 614 if (m == NULL) { 615 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 616 if (m_new == NULL) { 617 printf("%s: no memory for rx list " 618 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 619 return (ENOBUFS); 620 } 621 622 MCLGET(m_new, M_DONTWAIT); 623 if (!(m_new->m_flags & M_EXT)) { 624 printf("%s: no memory for rx list " 625 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 626 m_freem(m_new); 627 return (ENOBUFS); 628 } 629 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 630 } else { 631 m_new = m; 632 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 633 m_new->m_data = m_new->m_ext.ext_buf; 634 } 635 636 c->kue_mbuf = m_new; 637 638 return (0); 639 } 640 641 Static int 642 kue_rx_list_init(struct kue_softc *sc) 643 { 644 struct kue_cdata *cd; 645 struct kue_chain *c; 646 int i; 647 648 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 649 650 cd = &sc->kue_cdata; 651 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 652 c = &cd->kue_rx_chain[i]; 653 c->kue_sc = sc; 654 c->kue_idx = i; 655 if (kue_newbuf(sc, c, NULL) == ENOBUFS) 656 return (ENOBUFS); 657 if (c->kue_xfer == NULL) { 658 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 659 if (c->kue_xfer == NULL) 660 return (ENOBUFS); 661 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 662 if (c->kue_buf == NULL) 663 return (ENOBUFS); /* XXX free xfer */ 664 } 665 } 666 667 return (0); 668 } 669 670 Static int 671 kue_tx_list_init(struct kue_softc *sc) 672 { 673 struct kue_cdata *cd; 674 struct kue_chain *c; 675 int i; 676 677 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __FUNCTION__)); 678 679 cd = &sc->kue_cdata; 680 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 681 c = &cd->kue_tx_chain[i]; 682 c->kue_sc = sc; 683 c->kue_idx = i; 684 c->kue_mbuf = NULL; 685 if (c->kue_xfer == NULL) { 686 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 687 if (c->kue_xfer == NULL) 688 return (ENOBUFS); 689 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 690 if (c->kue_buf == NULL) 691 return (ENOBUFS); 692 } 693 } 694 695 return (0); 696 } 697 698 /* 699 * A frame has been uploaded: pass the resulting mbuf chain up to 700 * the higher level protocols. 701 */ 702 Static void 703 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 704 { 705 struct kue_chain *c = priv; 706 struct kue_softc *sc = c->kue_sc; 707 struct ifnet *ifp = GET_IFP(sc); 708 struct mbuf *m; 709 int total_len = 0; 710 int s; 711 712 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 713 __FUNCTION__, status)); 714 715 if (sc->kue_dying) 716 return; 717 718 if (!(ifp->if_flags & IFF_RUNNING)) 719 return; 720 721 if (status != USBD_NORMAL_COMPLETION) { 722 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 723 return; 724 sc->kue_rx_errs++; 725 if (usbd_ratecheck(&sc->kue_rx_notice)) { 726 printf("%s: %u usb errors on rx: %s\n", 727 USBDEVNAME(sc->kue_dev), sc->kue_rx_errs, 728 usbd_errstr(status)); 729 sc->kue_rx_errs = 0; 730 } 731 if (status == USBD_STALLED) 732 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_RX]); 733 goto done; 734 } 735 736 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 737 738 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev), 739 __FUNCTION__, total_len, 740 UGETW(mtod(c->kue_mbuf, u_int8_t *)))); 741 742 if (total_len <= 1) 743 goto done; 744 745 m = c->kue_mbuf; 746 /* copy data to mbuf */ 747 memcpy(mtod(m, char*), c->kue_buf, total_len); 748 749 /* No errors; receive the packet. */ 750 total_len = UGETW(mtod(m, u_int8_t *)); 751 m_adj(m, sizeof(u_int16_t)); 752 753 if (total_len < sizeof(struct ether_header)) { 754 ifp->if_ierrors++; 755 goto done; 756 } 757 758 ifp->if_ipackets++; 759 m->m_pkthdr.len = m->m_len = total_len; 760 761 m->m_pkthdr.rcvif = ifp; 762 763 s = splnet(); 764 765 /* XXX ugly */ 766 if (kue_newbuf(sc, c, NULL) == ENOBUFS) { 767 ifp->if_ierrors++; 768 goto done1; 769 } 770 771 #if NBPFILTER > 0 772 /* 773 * Handle BPF listeners. Let the BPF user see the packet, but 774 * don't pass it up to the ether_input() layer unless it's 775 * a broadcast packet, multicast packet, matches our ethernet 776 * address or the interface is in promiscuous mode. 777 */ 778 if (ifp->if_bpf) 779 bpf_mtap(ifp->if_bpf, m); 780 #endif 781 782 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev), 783 __FUNCTION__, m->m_len)); 784 IF_INPUT(ifp, m); 785 done1: 786 splx(s); 787 788 done: 789 790 /* Setup new transfer. */ 791 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 792 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 793 USBD_NO_TIMEOUT, kue_rxeof); 794 usbd_transfer(c->kue_xfer); 795 796 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev), 797 __FUNCTION__)); 798 } 799 800 /* 801 * A frame was downloaded to the chip. It's safe for us to clean up 802 * the list buffers. 803 */ 804 805 Static void 806 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 807 { 808 struct kue_chain *c = priv; 809 struct kue_softc *sc = c->kue_sc; 810 struct ifnet *ifp = GET_IFP(sc); 811 int s; 812 813 if (sc->kue_dying) 814 return; 815 816 s = splnet(); 817 818 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 819 __FUNCTION__, status)); 820 821 ifp->if_timer = 0; 822 ifp->if_flags &= ~IFF_OACTIVE; 823 824 if (status != USBD_NORMAL_COMPLETION) { 825 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 826 splx(s); 827 return; 828 } 829 ifp->if_oerrors++; 830 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev), 831 usbd_errstr(status)); 832 if (status == USBD_STALLED) 833 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_TX]); 834 splx(s); 835 return; 836 } 837 838 ifp->if_opackets++; 839 840 m_freem(c->kue_mbuf); 841 c->kue_mbuf = NULL; 842 843 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 844 kue_start(ifp); 845 846 splx(s); 847 } 848 849 Static int 850 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 851 { 852 int total_len; 853 struct kue_chain *c; 854 usbd_status err; 855 856 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 857 858 c = &sc->kue_cdata.kue_tx_chain[idx]; 859 860 /* 861 * Copy the mbuf data into a contiguous buffer, leaving two 862 * bytes at the beginning to hold the frame length. 863 */ 864 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 865 c->kue_mbuf = m; 866 867 total_len = m->m_pkthdr.len + 2; 868 /* XXX what's this? */ 869 total_len += 64 - (total_len % 64); 870 871 /* Frame length is specified in the first 2 bytes of the buffer. */ 872 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len; 873 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 874 875 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 876 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 877 kue_txeof); 878 879 /* Transmit */ 880 err = usbd_transfer(c->kue_xfer); 881 if (err != USBD_IN_PROGRESS) { 882 printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev), 883 usbd_errstr(err)); 884 kue_stop(sc); 885 return (EIO); 886 } 887 888 sc->kue_cdata.kue_tx_cnt++; 889 890 return (0); 891 } 892 893 Static void 894 kue_start(struct ifnet *ifp) 895 { 896 struct kue_softc *sc = ifp->if_softc; 897 struct mbuf *m_head = NULL; 898 899 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 900 901 if (sc->kue_dying) 902 return; 903 904 if (ifp->if_flags & IFF_OACTIVE) 905 return; 906 907 IFQ_POLL(&ifp->if_snd, m_head); 908 if (m_head == NULL) 909 return; 910 911 if (kue_send(sc, m_head, 0)) { 912 ifp->if_flags |= IFF_OACTIVE; 913 return; 914 } 915 916 IFQ_DEQUEUE(&ifp->if_snd, m_head); 917 918 #if NBPFILTER > 0 919 /* 920 * If there's a BPF listener, bounce a copy of this frame 921 * to him. 922 */ 923 if (ifp->if_bpf) 924 bpf_mtap(ifp->if_bpf, m_head); 925 #endif 926 927 ifp->if_flags |= IFF_OACTIVE; 928 929 /* 930 * Set a timeout in case the chip goes out to lunch. 931 */ 932 ifp->if_timer = 6; 933 } 934 935 Static void 936 kue_init(void *xsc) 937 { 938 struct kue_softc *sc = xsc; 939 struct ifnet *ifp = GET_IFP(sc); 940 int s; 941 u_char *eaddr; 942 943 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 944 945 if (ifp->if_flags & IFF_RUNNING) 946 return; 947 948 s = splnet(); 949 950 #if defined(__NetBSD__) 951 eaddr = LLADDR(ifp->if_sadl); 952 #else 953 eaddr = sc->arpcom.ac_enaddr; 954 #endif /* defined(__NetBSD__) */ 955 /* Set MAC address */ 956 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 957 958 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 959 960 /* If we want promiscuous mode, set the allframes bit. */ 961 if (ifp->if_flags & IFF_PROMISC) 962 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 963 964 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 965 966 /* I'm not sure how to tune these. */ 967 #if 0 968 /* 969 * Leave this one alone for now; setting it 970 * wrong causes lockups on some machines/controllers. 971 */ 972 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 973 #endif 974 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 975 976 /* Init TX ring. */ 977 if (kue_tx_list_init(sc) == ENOBUFS) { 978 printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev)); 979 splx(s); 980 return; 981 } 982 983 /* Init RX ring. */ 984 if (kue_rx_list_init(sc) == ENOBUFS) { 985 printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev)); 986 splx(s); 987 return; 988 } 989 990 /* Load the multicast filter. */ 991 kue_setmulti(sc); 992 993 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 994 if (kue_open_pipes(sc)) { 995 splx(s); 996 return; 997 } 998 } 999 1000 ifp->if_flags |= IFF_RUNNING; 1001 ifp->if_flags &= ~IFF_OACTIVE; 1002 1003 splx(s); 1004 } 1005 1006 Static int 1007 kue_open_pipes(struct kue_softc *sc) 1008 { 1009 usbd_status err; 1010 struct kue_chain *c; 1011 int i; 1012 1013 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 1014 1015 /* Open RX and TX pipes. */ 1016 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 1017 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 1018 if (err) { 1019 printf("%s: open rx pipe failed: %s\n", 1020 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1021 return (EIO); 1022 } 1023 1024 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 1025 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 1026 if (err) { 1027 printf("%s: open tx pipe failed: %s\n", 1028 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1029 return (EIO); 1030 } 1031 1032 /* Start up the receive pipe. */ 1033 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1034 c = &sc->kue_cdata.kue_rx_chain[i]; 1035 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 1036 c, c->kue_buf, KUE_BUFSZ, 1037 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1038 kue_rxeof); 1039 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev), 1040 __FUNCTION__)); 1041 usbd_transfer(c->kue_xfer); 1042 } 1043 1044 return (0); 1045 } 1046 1047 Static int 1048 kue_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 1049 { 1050 struct kue_softc *sc = ifp->if_softc; 1051 struct ifaddr *ifa = (struct ifaddr *)data; 1052 struct ifreq *ifr = (struct ifreq *)data; 1053 int s, error = 0; 1054 1055 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 1056 1057 if (sc->kue_dying) 1058 return (EIO); 1059 1060 #ifdef DIAGNOSTIC 1061 if (!curproc) { 1062 printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev)); 1063 return EIO; 1064 } 1065 #endif 1066 1067 s = splnet(); 1068 1069 switch(command) { 1070 case SIOCSIFADDR: 1071 ifp->if_flags |= IFF_UP; 1072 kue_init(sc); 1073 1074 switch (ifa->ifa_addr->sa_family) { 1075 #ifdef INET 1076 case AF_INET: 1077 #if defined(__NetBSD__) 1078 arp_ifinit(ifp, ifa); 1079 #else 1080 arp_ifinit(&sc->arpcom, ifa); 1081 #endif 1082 break; 1083 #endif /* INET */ 1084 #ifdef NS 1085 case AF_NS: 1086 { 1087 struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; 1088 1089 if (ns_nullhost(*ina)) 1090 ina->x_host = *(union ns_host *) 1091 LLADDR(ifp->if_sadl); 1092 else 1093 memcpy(LLADDR(ifp->if_sadl), 1094 ina->x_host.c_host, 1095 ifp->if_addrlen); 1096 break; 1097 } 1098 #endif /* NS */ 1099 } 1100 break; 1101 1102 case SIOCSIFMTU: 1103 if (ifr->ifr_mtu > ETHERMTU) 1104 error = EINVAL; 1105 else 1106 ifp->if_mtu = ifr->ifr_mtu; 1107 break; 1108 1109 case SIOCSIFFLAGS: 1110 if (ifp->if_flags & IFF_UP) { 1111 if (ifp->if_flags & IFF_RUNNING && 1112 ifp->if_flags & IFF_PROMISC && 1113 !(sc->kue_if_flags & IFF_PROMISC)) { 1114 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1115 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1116 sc->kue_rxfilt); 1117 } else if (ifp->if_flags & IFF_RUNNING && 1118 !(ifp->if_flags & IFF_PROMISC) && 1119 sc->kue_if_flags & IFF_PROMISC) { 1120 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1121 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1122 sc->kue_rxfilt); 1123 } else if (!(ifp->if_flags & IFF_RUNNING)) 1124 kue_init(sc); 1125 } else { 1126 if (ifp->if_flags & IFF_RUNNING) 1127 kue_stop(sc); 1128 } 1129 sc->kue_if_flags = ifp->if_flags; 1130 error = 0; 1131 break; 1132 case SIOCADDMULTI: 1133 case SIOCDELMULTI: 1134 kue_setmulti(sc); 1135 error = 0; 1136 break; 1137 default: 1138 error = EINVAL; 1139 break; 1140 } 1141 1142 splx(s); 1143 1144 return (error); 1145 } 1146 1147 Static void 1148 kue_watchdog(struct ifnet *ifp) 1149 { 1150 struct kue_softc *sc = ifp->if_softc; 1151 struct kue_chain *c; 1152 usbd_status stat; 1153 int s; 1154 1155 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 1156 1157 if (sc->kue_dying) 1158 return; 1159 1160 ifp->if_oerrors++; 1161 printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev)); 1162 1163 s = splusb(); 1164 c = &sc->kue_cdata.kue_tx_chain[0]; 1165 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1166 kue_txeof(c->kue_xfer, c, stat); 1167 1168 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1169 kue_start(ifp); 1170 splx(s); 1171 } 1172 1173 /* 1174 * Stop the adapter and free any mbufs allocated to the 1175 * RX and TX lists. 1176 */ 1177 Static void 1178 kue_stop(struct kue_softc *sc) 1179 { 1180 usbd_status err; 1181 struct ifnet *ifp; 1182 int i; 1183 1184 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__FUNCTION__)); 1185 1186 ifp = GET_IFP(sc); 1187 ifp->if_timer = 0; 1188 1189 /* Stop transfers. */ 1190 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1191 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1192 if (err) { 1193 printf("%s: abort rx pipe failed: %s\n", 1194 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1195 } 1196 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1197 if (err) { 1198 printf("%s: close rx pipe failed: %s\n", 1199 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1200 } 1201 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1202 } 1203 1204 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1205 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1206 if (err) { 1207 printf("%s: abort tx pipe failed: %s\n", 1208 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1209 } 1210 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1211 if (err) { 1212 printf("%s: close tx pipe failed: %s\n", 1213 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1214 } 1215 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1216 } 1217 1218 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1219 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1220 if (err) { 1221 printf("%s: abort intr pipe failed: %s\n", 1222 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1223 } 1224 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1225 if (err) { 1226 printf("%s: close intr pipe failed: %s\n", 1227 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1228 } 1229 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1230 } 1231 1232 /* Free RX resources. */ 1233 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1234 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) { 1235 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf); 1236 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL; 1237 } 1238 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1239 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1240 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1241 } 1242 } 1243 1244 /* Free TX resources. */ 1245 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1246 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) { 1247 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf); 1248 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL; 1249 } 1250 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1251 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1252 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1253 } 1254 } 1255 1256 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1257 } 1258
Indexes created Mon Sep 29 03:10:08 GMT 2025