if_kue.c revision 1.64
1 /* $NetBSD: if_kue.c,v 1.64 2008/11/07 00:20:12 dyoung 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 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.64 2008/11/07 00:20:12 dyoung Exp $"); 74 75 #if defined(__NetBSD__) 76 #include "opt_inet.h" 77 #include "bpfilter.h" 78 #include "rnd.h" 79 #elif defined(__OpenBSD__) 80 #include "bpfilter.h" 81 #endif 82 83 #include <sys/param.h> 84 #include <sys/systm.h> 85 #include <sys/sockio.h> 86 #include <sys/mbuf.h> 87 #include <sys/malloc.h> 88 #include <sys/kernel.h> 89 #include <sys/socket.h> 90 #include <sys/device.h> 91 #include <sys/proc.h> 92 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <net/if.h> 98 #if defined(__NetBSD__) 99 #include <net/if_arp.h> 100 #endif 101 #include <net/if_dl.h> 102 103 #if NBPFILTER > 0 104 #include <net/bpf.h> 105 #endif 106 107 #if defined(__NetBSD__) 108 #include <net/if_ether.h> 109 #ifdef INET 110 #include <netinet/in.h> 111 #include <netinet/if_inarp.h> 112 #endif 113 #endif /* defined (__NetBSD__) */ 114 115 #if defined(__OpenBSD__) 116 #ifdef INET 117 #include <netinet/in.h> 118 #include <netinet/in_systm.h> 119 #include <netinet/in_var.h> 120 #include <netinet/ip.h> 121 #include <netinet/if_ether.h> 122 #endif 123 #endif /* defined (__OpenBSD__) */ 124 125 126 #include <dev/usb/usb.h> 127 #include <dev/usb/usbdi.h> 128 #include <dev/usb/usbdi_util.h> 129 #include <dev/usb/usbdevs.h> 130 131 #include <dev/usb/if_kuereg.h> 132 #include <dev/usb/kue_fw.h> 133 134 #ifdef KUE_DEBUG 135 #define DPRINTF(x) if (kuedebug) logprintf x 136 #define DPRINTFN(n,x) if (kuedebug >= (n)) logprintf x 137 int kuedebug = 0; 138 #else 139 #define DPRINTF(x) 140 #define DPRINTFN(n,x) 141 #endif 142 143 /* 144 * Various supported device vendors/products. 145 */ 146 Static const struct usb_devno kue_devs[] = { 147 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 148 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 149 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 150 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 151 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX }, 152 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 153 { USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA }, 154 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 155 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C }, 156 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 157 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 158 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 159 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 }, 160 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 }, 161 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 162 { USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA }, 163 { USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 }, 164 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 165 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN }, 166 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 167 { USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA }, 168 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 169 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X }, 170 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 171 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 172 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 173 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 }, 174 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 }, 175 { USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA }, 176 { USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA }, 177 { USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E }, 178 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 179 }; 180 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p)) 181 182 USB_DECLARE_DRIVER(kue); 183 184 Static int kue_tx_list_init(struct kue_softc *); 185 Static int kue_rx_list_init(struct kue_softc *); 186 Static int kue_newbuf(struct kue_softc *, struct kue_chain *,struct mbuf *); 187 Static int kue_send(struct kue_softc *, struct mbuf *, int); 188 Static int kue_open_pipes(struct kue_softc *); 189 Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 190 Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 191 Static void kue_start(struct ifnet *); 192 Static int kue_ioctl(struct ifnet *, u_long, void *); 193 Static void kue_init(void *); 194 Static void kue_stop(struct kue_softc *); 195 Static void kue_watchdog(struct ifnet *); 196 197 Static void kue_setmulti(struct kue_softc *); 198 Static void kue_reset(struct kue_softc *); 199 200 Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t, 201 u_int16_t, void *, u_int32_t); 202 Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t); 203 Static int kue_load_fw(struct kue_softc *); 204 205 Static usbd_status 206 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word) 207 { 208 usb_device_request_t req; 209 210 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 211 212 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 213 req.bRequest = breq; 214 USETW(req.wValue, word); 215 USETW(req.wIndex, 0); 216 USETW(req.wLength, 0); 217 218 return (usbd_do_request(sc->kue_udev, &req, NULL)); 219 } 220 221 Static usbd_status 222 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val, 223 void *data, u_int32_t len) 224 { 225 usb_device_request_t req; 226 227 DPRINTFN(10,("%s: %s: enter, len=%d\n", USBDEVNAME(sc->kue_dev), 228 __func__, len)); 229 230 if (rw == KUE_CTL_WRITE) 231 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 232 else 233 req.bmRequestType = UT_READ_VENDOR_DEVICE; 234 235 req.bRequest = breq; 236 USETW(req.wValue, val); 237 USETW(req.wIndex, 0); 238 USETW(req.wLength, len); 239 240 return (usbd_do_request(sc->kue_udev, &req, data)); 241 } 242 243 Static int 244 kue_load_fw(struct kue_softc *sc) 245 { 246 usb_device_descriptor_t dd; 247 usbd_status err; 248 249 DPRINTFN(1,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 250 251 /* 252 * First, check if we even need to load the firmware. 253 * If the device was still attached when the system was 254 * rebooted, it may already have firmware loaded in it. 255 * If this is the case, we don't need to do it again. 256 * And in fact, if we try to load it again, we'll hang, 257 * so we have to avoid this condition if we don't want 258 * to look stupid. 259 * 260 * We can test this quickly by checking the bcdRevision 261 * code. The NIC will return a different revision code if 262 * it's probed while the firmware is still loaded and 263 * running. 264 */ 265 if (usbd_get_device_desc(sc->kue_udev, &dd)) 266 return (EIO); 267 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 268 printf("%s: warm boot, no firmware download\n", 269 USBDEVNAME(sc->kue_dev)); 270 return (0); 271 } 272 273 printf("%s: cold boot, downloading firmware\n", 274 USBDEVNAME(sc->kue_dev)); 275 276 /* Load code segment */ 277 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 278 USBDEVNAME(sc->kue_dev))); 279 /*XXXUNCONST*/ 280 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 281 0, __UNCONST(kue_code_seg), sizeof(kue_code_seg)); 282 if (err) { 283 printf("%s: failed to load code segment: %s\n", 284 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 285 return (EIO); 286 } 287 288 /* Load fixup segment */ 289 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 290 USBDEVNAME(sc->kue_dev))); 291 /*XXXUNCONST*/ 292 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 293 0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg)); 294 if (err) { 295 printf("%s: failed to load fixup segment: %s\n", 296 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 297 return (EIO); 298 } 299 300 /* Send trigger command. */ 301 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 302 USBDEVNAME(sc->kue_dev))); 303 /*XXXUNCONST*/ 304 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 305 0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg)); 306 if (err) { 307 printf("%s: failed to load trigger segment: %s\n", 308 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 309 return (EIO); 310 } 311 312 usbd_delay_ms(sc->kue_udev, 10); 313 314 /* 315 * Reload device descriptor. 316 * Why? The chip without the firmware loaded returns 317 * one revision code. The chip with the firmware 318 * loaded and running returns a *different* revision 319 * code. This confuses the quirk mechanism, which is 320 * dependent on the revision data. 321 */ 322 (void)usbd_reload_device_desc(sc->kue_udev); 323 324 DPRINTFN(1,("%s: %s: done\n", USBDEVNAME(sc->kue_dev), __func__)); 325 326 /* Reset the adapter. */ 327 kue_reset(sc); 328 329 return (0); 330 } 331 332 Static void 333 kue_setmulti(struct kue_softc *sc) 334 { 335 struct ifnet *ifp = GET_IFP(sc); 336 struct ether_multi *enm; 337 struct ether_multistep step; 338 int i; 339 340 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 341 342 if (ifp->if_flags & IFF_PROMISC) { 343 allmulti: 344 ifp->if_flags |= IFF_ALLMULTI; 345 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 346 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 347 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 348 return; 349 } 350 351 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 352 353 i = 0; 354 #if defined (__NetBSD__) 355 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 356 #else 357 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 358 #endif 359 while (enm != NULL) { 360 if (i == KUE_MCFILTCNT(sc) || 361 memcmp(enm->enm_addrlo, enm->enm_addrhi, 362 ETHER_ADDR_LEN) != 0) 363 goto allmulti; 364 365 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 366 ETHER_NEXT_MULTI(step, enm); 367 i++; 368 } 369 370 ifp->if_flags &= ~IFF_ALLMULTI; 371 372 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 373 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 374 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 375 376 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 377 } 378 379 /* 380 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 381 * done after the firmware is loaded into the adapter in order to 382 * bring it into proper operation. 383 */ 384 Static void 385 kue_reset(struct kue_softc *sc) 386 { 387 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 388 389 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) || 390 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX, 391 &sc->kue_iface)) 392 printf("%s: reset failed\n", USBDEVNAME(sc->kue_dev)); 393 394 /* Wait a little while for the chip to get its brains in order. */ 395 usbd_delay_ms(sc->kue_udev, 10); 396 } 397 398 /* 399 * Probe for a KLSI chip. 400 */ 401 USB_MATCH(kue) 402 { 403 USB_MATCH_START(kue, uaa); 404 405 DPRINTFN(25,("kue_match: enter\n")); 406 407 return (kue_lookup(uaa->vendor, uaa->product) != NULL ? 408 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 409 } 410 411 /* 412 * Attach the interface. Allocate softc structures, do 413 * setup and ethernet/BPF attach. 414 */ 415 USB_ATTACH(kue) 416 { 417 USB_ATTACH_START(kue, sc, uaa); 418 char *devinfop; 419 int s; 420 struct ifnet *ifp; 421 usbd_device_handle dev = uaa->device; 422 usbd_interface_handle iface; 423 usbd_status err; 424 usb_interface_descriptor_t *id; 425 usb_endpoint_descriptor_t *ed; 426 int i; 427 428 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 429 430 sc->kue_dev = self; 431 432 devinfop = usbd_devinfo_alloc(dev, 0); 433 USB_ATTACH_SETUP; 434 aprint_normal_dev(self, "%s\n", devinfop); 435 usbd_devinfo_free(devinfop); 436 437 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 438 if (err) { 439 aprint_error_dev(self, " setting config no failed\n"); 440 USB_ATTACH_ERROR_RETURN; 441 } 442 443 sc->kue_udev = dev; 444 sc->kue_product = uaa->product; 445 sc->kue_vendor = uaa->vendor; 446 447 /* Load the firmware into the NIC. */ 448 if (kue_load_fw(sc)) { 449 aprint_error_dev(self, "loading firmware failed\n"); 450 USB_ATTACH_ERROR_RETURN; 451 } 452 453 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 454 if (err) { 455 aprint_error_dev(self, "getting interface handle failed\n"); 456 USB_ATTACH_ERROR_RETURN; 457 } 458 459 sc->kue_iface = iface; 460 id = usbd_get_interface_descriptor(iface); 461 462 /* Find endpoints. */ 463 for (i = 0; i < id->bNumEndpoints; i++) { 464 ed = usbd_interface2endpoint_descriptor(iface, i); 465 if (ed == NULL) { 466 aprint_error_dev(self, "couldn't get ep %d\n", i); 467 USB_ATTACH_ERROR_RETURN; 468 } 469 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 470 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 471 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 472 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 473 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 474 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 475 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 476 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 477 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 478 } 479 } 480 481 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 482 aprint_error_dev(self, "missing endpoint\n"); 483 USB_ATTACH_ERROR_RETURN; 484 } 485 486 /* Read ethernet descriptor */ 487 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 488 0, &sc->kue_desc, sizeof(sc->kue_desc)); 489 if (err) { 490 aprint_error_dev(self, "could not read Ethernet descriptor\n"); 491 USB_ATTACH_ERROR_RETURN; 492 } 493 494 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 495 M_USBDEV, M_NOWAIT); 496 if (sc->kue_mcfilters == NULL) { 497 aprint_error_dev(self, 498 "no memory for multicast filter buffer\n"); 499 USB_ATTACH_ERROR_RETURN; 500 } 501 502 s = splnet(); 503 504 /* 505 * A KLSI chip was detected. Inform the world. 506 */ 507 aprint_normal_dev(self, "Ethernet address %s\n", 508 ether_sprintf(sc->kue_desc.kue_macaddr)); 509 510 /* Initialize interface info.*/ 511 ifp = GET_IFP(sc); 512 ifp->if_softc = sc; 513 ifp->if_mtu = ETHERMTU; 514 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 515 ifp->if_ioctl = kue_ioctl; 516 ifp->if_start = kue_start; 517 ifp->if_watchdog = kue_watchdog; 518 #if defined(__OpenBSD__) 519 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 520 #endif 521 strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ); 522 523 IFQ_SET_READY(&ifp->if_snd); 524 525 /* Attach the interface. */ 526 if_attach(ifp); 527 Ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 528 #if NRND > 0 529 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev), 530 RND_TYPE_NET, 0); 531 #endif 532 533 sc->kue_attached = 1; 534 splx(s); 535 536 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 537 USBDEV(sc->kue_dev)); 538 539 USB_ATTACH_SUCCESS_RETURN; 540 } 541 542 USB_DETACH(kue) 543 { 544 USB_DETACH_START(kue, sc); 545 struct ifnet *ifp = GET_IFP(sc); 546 int s; 547 548 s = splusb(); /* XXX why? */ 549 550 if (sc->kue_mcfilters != NULL) { 551 free(sc->kue_mcfilters, M_USBDEV); 552 sc->kue_mcfilters = NULL; 553 } 554 555 if (!sc->kue_attached) { 556 /* Detached before attached finished, so just bail out. */ 557 splx(s); 558 return (0); 559 } 560 561 if (ifp->if_flags & IFF_RUNNING) 562 kue_stop(sc); 563 564 #if defined(__NetBSD__) 565 #if NRND > 0 566 rnd_detach_source(&sc->rnd_source); 567 #endif 568 ether_ifdetach(ifp); 569 #endif /* __NetBSD__ */ 570 571 if_detach(ifp); 572 573 #ifdef DIAGNOSTIC 574 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 575 sc->kue_ep[KUE_ENDPT_RX] != NULL || 576 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 577 aprint_debug_dev(self, "detach has active endpoints\n"); 578 #endif 579 580 sc->kue_attached = 0; 581 splx(s); 582 583 return (0); 584 } 585 586 int 587 kue_activate(device_ptr_t self, enum devact act) 588 { 589 struct kue_softc *sc = device_private(self); 590 591 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 592 593 switch (act) { 594 case DVACT_ACTIVATE: 595 return (EOPNOTSUPP); 596 break; 597 598 case DVACT_DEACTIVATE: 599 #if defined(__NetBSD__) 600 /* Deactivate the interface. */ 601 if_deactivate(&sc->kue_ec.ec_if); 602 #endif 603 sc->kue_dying = 1; 604 break; 605 } 606 return (0); 607 } 608 609 /* 610 * Initialize an RX descriptor and attach an MBUF cluster. 611 */ 612 Static int 613 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m) 614 { 615 struct mbuf *m_new = NULL; 616 617 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 618 619 if (m == NULL) { 620 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 621 if (m_new == NULL) { 622 printf("%s: no memory for rx list " 623 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 624 return (ENOBUFS); 625 } 626 627 MCLGET(m_new, M_DONTWAIT); 628 if (!(m_new->m_flags & M_EXT)) { 629 printf("%s: no memory for rx list " 630 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 631 m_freem(m_new); 632 return (ENOBUFS); 633 } 634 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 635 } else { 636 m_new = m; 637 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 638 m_new->m_data = m_new->m_ext.ext_buf; 639 } 640 641 c->kue_mbuf = m_new; 642 643 return (0); 644 } 645 646 Static int 647 kue_rx_list_init(struct kue_softc *sc) 648 { 649 struct kue_cdata *cd; 650 struct kue_chain *c; 651 int i; 652 653 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 654 655 cd = &sc->kue_cdata; 656 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 657 c = &cd->kue_rx_chain[i]; 658 c->kue_sc = sc; 659 c->kue_idx = i; 660 if (kue_newbuf(sc, c, NULL) == ENOBUFS) 661 return (ENOBUFS); 662 if (c->kue_xfer == NULL) { 663 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 664 if (c->kue_xfer == NULL) 665 return (ENOBUFS); 666 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 667 if (c->kue_buf == NULL) 668 return (ENOBUFS); /* XXX free xfer */ 669 } 670 } 671 672 return (0); 673 } 674 675 Static int 676 kue_tx_list_init(struct kue_softc *sc) 677 { 678 struct kue_cdata *cd; 679 struct kue_chain *c; 680 int i; 681 682 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 683 684 cd = &sc->kue_cdata; 685 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 686 c = &cd->kue_tx_chain[i]; 687 c->kue_sc = sc; 688 c->kue_idx = i; 689 c->kue_mbuf = NULL; 690 if (c->kue_xfer == NULL) { 691 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 692 if (c->kue_xfer == NULL) 693 return (ENOBUFS); 694 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 695 if (c->kue_buf == NULL) 696 return (ENOBUFS); 697 } 698 } 699 700 return (0); 701 } 702 703 /* 704 * A frame has been uploaded: pass the resulting mbuf chain up to 705 * the higher level protocols. 706 */ 707 Static void 708 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 709 { 710 struct kue_chain *c = priv; 711 struct kue_softc *sc = c->kue_sc; 712 struct ifnet *ifp = GET_IFP(sc); 713 struct mbuf *m; 714 int total_len = 0; 715 int s; 716 717 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 718 __func__, status)); 719 720 if (sc->kue_dying) 721 return; 722 723 if (!(ifp->if_flags & IFF_RUNNING)) 724 return; 725 726 if (status != USBD_NORMAL_COMPLETION) { 727 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 728 return; 729 sc->kue_rx_errs++; 730 if (usbd_ratecheck(&sc->kue_rx_notice)) { 731 printf("%s: %u usb errors on rx: %s\n", 732 USBDEVNAME(sc->kue_dev), sc->kue_rx_errs, 733 usbd_errstr(status)); 734 sc->kue_rx_errs = 0; 735 } 736 if (status == USBD_STALLED) 737 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 738 goto done; 739 } 740 741 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 742 743 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev), 744 __func__, total_len, 745 UGETW(mtod(c->kue_mbuf, u_int8_t *)))); 746 747 if (total_len <= 1) 748 goto done; 749 750 m = c->kue_mbuf; 751 /* copy data to mbuf */ 752 memcpy(mtod(m, char *), c->kue_buf, total_len); 753 754 /* No errors; receive the packet. */ 755 total_len = UGETW(mtod(m, u_int8_t *)); 756 m_adj(m, sizeof(u_int16_t)); 757 758 if (total_len < sizeof(struct ether_header)) { 759 ifp->if_ierrors++; 760 goto done; 761 } 762 763 ifp->if_ipackets++; 764 m->m_pkthdr.len = m->m_len = total_len; 765 766 m->m_pkthdr.rcvif = ifp; 767 768 s = splnet(); 769 770 /* XXX ugly */ 771 if (kue_newbuf(sc, c, NULL) == ENOBUFS) { 772 ifp->if_ierrors++; 773 goto done1; 774 } 775 776 #if NBPFILTER > 0 777 /* 778 * Handle BPF listeners. Let the BPF user see the packet, but 779 * don't pass it up to the ether_input() layer unless it's 780 * a broadcast packet, multicast packet, matches our ethernet 781 * address or the interface is in promiscuous mode. 782 */ 783 if (ifp->if_bpf) 784 bpf_mtap(ifp->if_bpf, m); 785 #endif 786 787 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev), 788 __func__, m->m_len)); 789 IF_INPUT(ifp, m); 790 done1: 791 splx(s); 792 793 done: 794 795 /* Setup new transfer. */ 796 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 797 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 798 USBD_NO_TIMEOUT, kue_rxeof); 799 usbd_transfer(c->kue_xfer); 800 801 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev), 802 __func__)); 803 } 804 805 /* 806 * A frame was downloaded to the chip. It's safe for us to clean up 807 * the list buffers. 808 */ 809 810 Static void 811 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 812 usbd_status status) 813 { 814 struct kue_chain *c = priv; 815 struct kue_softc *sc = c->kue_sc; 816 struct ifnet *ifp = GET_IFP(sc); 817 int s; 818 819 if (sc->kue_dying) 820 return; 821 822 s = splnet(); 823 824 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 825 __func__, status)); 826 827 ifp->if_timer = 0; 828 ifp->if_flags &= ~IFF_OACTIVE; 829 830 if (status != USBD_NORMAL_COMPLETION) { 831 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 832 splx(s); 833 return; 834 } 835 ifp->if_oerrors++; 836 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev), 837 usbd_errstr(status)); 838 if (status == USBD_STALLED) 839 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]); 840 splx(s); 841 return; 842 } 843 844 ifp->if_opackets++; 845 846 m_freem(c->kue_mbuf); 847 c->kue_mbuf = NULL; 848 849 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 850 kue_start(ifp); 851 852 splx(s); 853 } 854 855 Static int 856 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 857 { 858 int total_len; 859 struct kue_chain *c; 860 usbd_status err; 861 862 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 863 864 c = &sc->kue_cdata.kue_tx_chain[idx]; 865 866 /* 867 * Copy the mbuf data into a contiguous buffer, leaving two 868 * bytes at the beginning to hold the frame length. 869 */ 870 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 871 c->kue_mbuf = m; 872 873 total_len = m->m_pkthdr.len + 2; 874 /* XXX what's this? */ 875 total_len += 64 - (total_len % 64); 876 877 /* Frame length is specified in the first 2 bytes of the buffer. */ 878 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len; 879 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 880 881 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 882 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 883 kue_txeof); 884 885 /* Transmit */ 886 err = usbd_transfer(c->kue_xfer); 887 if (err != USBD_IN_PROGRESS) { 888 printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev), 889 usbd_errstr(err)); 890 kue_stop(sc); 891 return (EIO); 892 } 893 894 sc->kue_cdata.kue_tx_cnt++; 895 896 return (0); 897 } 898 899 Static void 900 kue_start(struct ifnet *ifp) 901 { 902 struct kue_softc *sc = ifp->if_softc; 903 struct mbuf *m_head = NULL; 904 905 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 906 907 if (sc->kue_dying) 908 return; 909 910 if (ifp->if_flags & IFF_OACTIVE) 911 return; 912 913 IFQ_POLL(&ifp->if_snd, m_head); 914 if (m_head == NULL) 915 return; 916 917 if (kue_send(sc, m_head, 0)) { 918 ifp->if_flags |= IFF_OACTIVE; 919 return; 920 } 921 922 IFQ_DEQUEUE(&ifp->if_snd, m_head); 923 924 #if NBPFILTER > 0 925 /* 926 * If there's a BPF listener, bounce a copy of this frame 927 * to him. 928 */ 929 if (ifp->if_bpf) 930 bpf_mtap(ifp->if_bpf, m_head); 931 #endif 932 933 ifp->if_flags |= IFF_OACTIVE; 934 935 /* 936 * Set a timeout in case the chip goes out to lunch. 937 */ 938 ifp->if_timer = 6; 939 } 940 941 Static void 942 kue_init(void *xsc) 943 { 944 struct kue_softc *sc = xsc; 945 struct ifnet *ifp = GET_IFP(sc); 946 int s; 947 u_char eaddr[ETHER_ADDR_LEN]; 948 949 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 950 951 if (ifp->if_flags & IFF_RUNNING) 952 return; 953 954 s = splnet(); 955 956 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 957 /* Set MAC address */ 958 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 959 960 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 961 962 /* If we want promiscuous mode, set the allframes bit. */ 963 if (ifp->if_flags & IFF_PROMISC) 964 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 965 966 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 967 968 /* I'm not sure how to tune these. */ 969 #if 0 970 /* 971 * Leave this one alone for now; setting it 972 * wrong causes lockups on some machines/controllers. 973 */ 974 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 975 #endif 976 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 977 978 /* Init TX ring. */ 979 if (kue_tx_list_init(sc) == ENOBUFS) { 980 printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev)); 981 splx(s); 982 return; 983 } 984 985 /* Init RX ring. */ 986 if (kue_rx_list_init(sc) == ENOBUFS) { 987 printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev)); 988 splx(s); 989 return; 990 } 991 992 /* Load the multicast filter. */ 993 kue_setmulti(sc); 994 995 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 996 if (kue_open_pipes(sc)) { 997 splx(s); 998 return; 999 } 1000 } 1001 1002 ifp->if_flags |= IFF_RUNNING; 1003 ifp->if_flags &= ~IFF_OACTIVE; 1004 1005 splx(s); 1006 } 1007 1008 Static int 1009 kue_open_pipes(struct kue_softc *sc) 1010 { 1011 usbd_status err; 1012 struct kue_chain *c; 1013 int i; 1014 1015 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1016 1017 /* Open RX and TX pipes. */ 1018 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 1019 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 1020 if (err) { 1021 printf("%s: open rx pipe failed: %s\n", 1022 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1023 return (EIO); 1024 } 1025 1026 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 1027 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 1028 if (err) { 1029 printf("%s: open tx pipe failed: %s\n", 1030 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1031 return (EIO); 1032 } 1033 1034 /* Start up the receive pipe. */ 1035 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1036 c = &sc->kue_cdata.kue_rx_chain[i]; 1037 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 1038 c, c->kue_buf, KUE_BUFSZ, 1039 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1040 kue_rxeof); 1041 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev), 1042 __func__)); 1043 usbd_transfer(c->kue_xfer); 1044 } 1045 1046 return (0); 1047 } 1048 1049 Static int 1050 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 1051 { 1052 struct kue_softc *sc = ifp->if_softc; 1053 struct ifaddr *ifa = (struct ifaddr *)data; 1054 struct ifreq *ifr = (struct ifreq *)data; 1055 int s, error = 0; 1056 1057 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1058 1059 if (sc->kue_dying) 1060 return (EIO); 1061 1062 #ifdef DIAGNOSTIC 1063 if (!curproc) { 1064 printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev)); 1065 return EIO; 1066 } 1067 #endif 1068 1069 s = splnet(); 1070 1071 switch(command) { 1072 case SIOCINITIFADDR: 1073 ifp->if_flags |= IFF_UP; 1074 kue_init(sc); 1075 1076 switch (ifa->ifa_addr->sa_family) { 1077 #ifdef INET 1078 case AF_INET: 1079 #if defined(__NetBSD__) 1080 arp_ifinit(ifp, ifa); 1081 #else 1082 arp_ifinit(&sc->arpcom, ifa); 1083 #endif 1084 break; 1085 #endif /* INET */ 1086 } 1087 break; 1088 1089 case SIOCSIFMTU: 1090 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1091 error = EINVAL; 1092 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1093 error = 0; 1094 break; 1095 1096 case SIOCSIFFLAGS: 1097 if ((error = ifioctl_common(ifp, command, data)) != 0) 1098 break; 1099 if (ifp->if_flags & IFF_UP) { 1100 if (ifp->if_flags & IFF_RUNNING && 1101 ifp->if_flags & IFF_PROMISC && 1102 !(sc->kue_if_flags & IFF_PROMISC)) { 1103 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1104 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1105 sc->kue_rxfilt); 1106 } else if (ifp->if_flags & IFF_RUNNING && 1107 !(ifp->if_flags & IFF_PROMISC) && 1108 sc->kue_if_flags & IFF_PROMISC) { 1109 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1110 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1111 sc->kue_rxfilt); 1112 } else if (!(ifp->if_flags & IFF_RUNNING)) 1113 kue_init(sc); 1114 } else { 1115 if (ifp->if_flags & IFF_RUNNING) 1116 kue_stop(sc); 1117 } 1118 sc->kue_if_flags = ifp->if_flags; 1119 error = 0; 1120 break; 1121 case SIOCADDMULTI: 1122 case SIOCDELMULTI: 1123 kue_setmulti(sc); 1124 error = 0; 1125 break; 1126 default: 1127 error = ether_ioctl(ifp, command, data); 1128 break; 1129 } 1130 1131 splx(s); 1132 1133 return (error); 1134 } 1135 1136 Static void 1137 kue_watchdog(struct ifnet *ifp) 1138 { 1139 struct kue_softc *sc = ifp->if_softc; 1140 struct kue_chain *c; 1141 usbd_status stat; 1142 int s; 1143 1144 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1145 1146 if (sc->kue_dying) 1147 return; 1148 1149 ifp->if_oerrors++; 1150 printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev)); 1151 1152 s = splusb(); 1153 c = &sc->kue_cdata.kue_tx_chain[0]; 1154 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1155 kue_txeof(c->kue_xfer, c, stat); 1156 1157 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1158 kue_start(ifp); 1159 splx(s); 1160 } 1161 1162 /* 1163 * Stop the adapter and free any mbufs allocated to the 1164 * RX and TX lists. 1165 */ 1166 Static void 1167 kue_stop(struct kue_softc *sc) 1168 { 1169 usbd_status err; 1170 struct ifnet *ifp; 1171 int i; 1172 1173 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1174 1175 ifp = GET_IFP(sc); 1176 ifp->if_timer = 0; 1177 1178 /* Stop transfers. */ 1179 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1180 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1181 if (err) { 1182 printf("%s: abort rx pipe failed: %s\n", 1183 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1184 } 1185 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1186 if (err) { 1187 printf("%s: close rx pipe failed: %s\n", 1188 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1189 } 1190 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1191 } 1192 1193 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1194 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1195 if (err) { 1196 printf("%s: abort tx pipe failed: %s\n", 1197 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1198 } 1199 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1200 if (err) { 1201 printf("%s: close tx pipe failed: %s\n", 1202 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1203 } 1204 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1205 } 1206 1207 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1208 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1209 if (err) { 1210 printf("%s: abort intr pipe failed: %s\n", 1211 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1212 } 1213 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1214 if (err) { 1215 printf("%s: close intr pipe failed: %s\n", 1216 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1217 } 1218 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1219 } 1220 1221 /* Free RX resources. */ 1222 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1223 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) { 1224 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf); 1225 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL; 1226 } 1227 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1228 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1229 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1230 } 1231 } 1232 1233 /* Free TX resources. */ 1234 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1235 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) { 1236 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf); 1237 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL; 1238 } 1239 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1240 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1241 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1242 } 1243 } 1244 1245 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1246 } 1247
Indexes created Mon Sep 29 03:10:08 GMT 2025