if_kue.c revision 1.66
1 /* $NetBSD: if_kue.c,v 1.66 2009/09/23 19:07:19 plunky 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 1.66 2009/09/23 19:07:19 plunky 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 aprint_naive("\n"); 433 aprint_normal("\n"); 434 435 devinfop = usbd_devinfo_alloc(dev, 0); 436 aprint_normal_dev(self, "%s\n", devinfop); 437 usbd_devinfo_free(devinfop); 438 439 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 440 if (err) { 441 aprint_error_dev(self, " setting config no failed\n"); 442 USB_ATTACH_ERROR_RETURN; 443 } 444 445 sc->kue_udev = dev; 446 sc->kue_product = uaa->product; 447 sc->kue_vendor = uaa->vendor; 448 449 /* Load the firmware into the NIC. */ 450 if (kue_load_fw(sc)) { 451 aprint_error_dev(self, "loading firmware failed\n"); 452 USB_ATTACH_ERROR_RETURN; 453 } 454 455 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 456 if (err) { 457 aprint_error_dev(self, "getting interface handle failed\n"); 458 USB_ATTACH_ERROR_RETURN; 459 } 460 461 sc->kue_iface = iface; 462 id = usbd_get_interface_descriptor(iface); 463 464 /* Find endpoints. */ 465 for (i = 0; i < id->bNumEndpoints; i++) { 466 ed = usbd_interface2endpoint_descriptor(iface, i); 467 if (ed == NULL) { 468 aprint_error_dev(self, "couldn't get ep %d\n", i); 469 USB_ATTACH_ERROR_RETURN; 470 } 471 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 472 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 473 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 474 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 475 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 476 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 477 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 478 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 479 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 480 } 481 } 482 483 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 484 aprint_error_dev(self, "missing endpoint\n"); 485 USB_ATTACH_ERROR_RETURN; 486 } 487 488 /* Read ethernet descriptor */ 489 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 490 0, &sc->kue_desc, sizeof(sc->kue_desc)); 491 if (err) { 492 aprint_error_dev(self, "could not read Ethernet descriptor\n"); 493 USB_ATTACH_ERROR_RETURN; 494 } 495 496 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 497 M_USBDEV, M_NOWAIT); 498 if (sc->kue_mcfilters == NULL) { 499 aprint_error_dev(self, 500 "no memory for multicast filter buffer\n"); 501 USB_ATTACH_ERROR_RETURN; 502 } 503 504 s = splnet(); 505 506 /* 507 * A KLSI chip was detected. Inform the world. 508 */ 509 aprint_normal_dev(self, "Ethernet address %s\n", 510 ether_sprintf(sc->kue_desc.kue_macaddr)); 511 512 /* Initialize interface info.*/ 513 ifp = GET_IFP(sc); 514 ifp->if_softc = sc; 515 ifp->if_mtu = ETHERMTU; 516 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 517 ifp->if_ioctl = kue_ioctl; 518 ifp->if_start = kue_start; 519 ifp->if_watchdog = kue_watchdog; 520 #if defined(__OpenBSD__) 521 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 522 #endif 523 strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ); 524 525 IFQ_SET_READY(&ifp->if_snd); 526 527 /* Attach the interface. */ 528 if_attach(ifp); 529 Ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 530 #if NRND > 0 531 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev), 532 RND_TYPE_NET, 0); 533 #endif 534 535 sc->kue_attached = 1; 536 splx(s); 537 538 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 539 USBDEV(sc->kue_dev)); 540 541 USB_ATTACH_SUCCESS_RETURN; 542 } 543 544 USB_DETACH(kue) 545 { 546 USB_DETACH_START(kue, sc); 547 struct ifnet *ifp = GET_IFP(sc); 548 int s; 549 550 s = splusb(); /* XXX why? */ 551 552 if (sc->kue_mcfilters != NULL) { 553 free(sc->kue_mcfilters, M_USBDEV); 554 sc->kue_mcfilters = NULL; 555 } 556 557 if (!sc->kue_attached) { 558 /* Detached before attached finished, so just bail out. */ 559 splx(s); 560 return (0); 561 } 562 563 if (ifp->if_flags & IFF_RUNNING) 564 kue_stop(sc); 565 566 #if defined(__NetBSD__) 567 #if NRND > 0 568 rnd_detach_source(&sc->rnd_source); 569 #endif 570 ether_ifdetach(ifp); 571 #endif /* __NetBSD__ */ 572 573 if_detach(ifp); 574 575 #ifdef DIAGNOSTIC 576 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 577 sc->kue_ep[KUE_ENDPT_RX] != NULL || 578 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 579 aprint_debug_dev(self, "detach has active endpoints\n"); 580 #endif 581 582 sc->kue_attached = 0; 583 splx(s); 584 585 return (0); 586 } 587 588 int 589 kue_activate(device_ptr_t self, enum devact act) 590 { 591 struct kue_softc *sc = device_private(self); 592 593 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 594 595 switch (act) { 596 case DVACT_ACTIVATE: 597 return (EOPNOTSUPP); 598 break; 599 600 case DVACT_DEACTIVATE: 601 #if defined(__NetBSD__) 602 /* Deactivate the interface. */ 603 if_deactivate(&sc->kue_ec.ec_if); 604 #endif 605 sc->kue_dying = 1; 606 break; 607 } 608 return (0); 609 } 610 611 /* 612 * Initialize an RX descriptor and attach an MBUF cluster. 613 */ 614 Static int 615 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m) 616 { 617 struct mbuf *m_new = NULL; 618 619 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 620 621 if (m == NULL) { 622 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 623 if (m_new == NULL) { 624 printf("%s: no memory for rx list " 625 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 626 return (ENOBUFS); 627 } 628 629 MCLGET(m_new, M_DONTWAIT); 630 if (!(m_new->m_flags & M_EXT)) { 631 printf("%s: no memory for rx list " 632 "-- packet dropped!\n", USBDEVNAME(sc->kue_dev)); 633 m_freem(m_new); 634 return (ENOBUFS); 635 } 636 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 637 } else { 638 m_new = m; 639 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 640 m_new->m_data = m_new->m_ext.ext_buf; 641 } 642 643 c->kue_mbuf = m_new; 644 645 return (0); 646 } 647 648 Static int 649 kue_rx_list_init(struct kue_softc *sc) 650 { 651 struct kue_cdata *cd; 652 struct kue_chain *c; 653 int i; 654 655 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 656 657 cd = &sc->kue_cdata; 658 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 659 c = &cd->kue_rx_chain[i]; 660 c->kue_sc = sc; 661 c->kue_idx = i; 662 if (kue_newbuf(sc, c, NULL) == ENOBUFS) 663 return (ENOBUFS); 664 if (c->kue_xfer == NULL) { 665 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 666 if (c->kue_xfer == NULL) 667 return (ENOBUFS); 668 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 669 if (c->kue_buf == NULL) 670 return (ENOBUFS); /* XXX free xfer */ 671 } 672 } 673 674 return (0); 675 } 676 677 Static int 678 kue_tx_list_init(struct kue_softc *sc) 679 { 680 struct kue_cdata *cd; 681 struct kue_chain *c; 682 int i; 683 684 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__)); 685 686 cd = &sc->kue_cdata; 687 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 688 c = &cd->kue_tx_chain[i]; 689 c->kue_sc = sc; 690 c->kue_idx = i; 691 c->kue_mbuf = NULL; 692 if (c->kue_xfer == NULL) { 693 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 694 if (c->kue_xfer == NULL) 695 return (ENOBUFS); 696 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 697 if (c->kue_buf == NULL) 698 return (ENOBUFS); 699 } 700 } 701 702 return (0); 703 } 704 705 /* 706 * A frame has been uploaded: pass the resulting mbuf chain up to 707 * the higher level protocols. 708 */ 709 Static void 710 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 711 { 712 struct kue_chain *c = priv; 713 struct kue_softc *sc = c->kue_sc; 714 struct ifnet *ifp = GET_IFP(sc); 715 struct mbuf *m; 716 int total_len = 0; 717 int s; 718 719 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 720 __func__, status)); 721 722 if (sc->kue_dying) 723 return; 724 725 if (!(ifp->if_flags & IFF_RUNNING)) 726 return; 727 728 if (status != USBD_NORMAL_COMPLETION) { 729 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 730 return; 731 sc->kue_rx_errs++; 732 if (usbd_ratecheck(&sc->kue_rx_notice)) { 733 printf("%s: %u usb errors on rx: %s\n", 734 USBDEVNAME(sc->kue_dev), sc->kue_rx_errs, 735 usbd_errstr(status)); 736 sc->kue_rx_errs = 0; 737 } 738 if (status == USBD_STALLED) 739 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 740 goto done; 741 } 742 743 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 744 745 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev), 746 __func__, total_len, 747 UGETW(mtod(c->kue_mbuf, u_int8_t *)))); 748 749 if (total_len <= 1) 750 goto done; 751 752 m = c->kue_mbuf; 753 /* copy data to mbuf */ 754 memcpy(mtod(m, char *), c->kue_buf, total_len); 755 756 /* No errors; receive the packet. */ 757 total_len = UGETW(mtod(m, u_int8_t *)); 758 m_adj(m, sizeof(u_int16_t)); 759 760 if (total_len < sizeof(struct ether_header)) { 761 ifp->if_ierrors++; 762 goto done; 763 } 764 765 ifp->if_ipackets++; 766 m->m_pkthdr.len = m->m_len = total_len; 767 768 m->m_pkthdr.rcvif = ifp; 769 770 s = splnet(); 771 772 /* XXX ugly */ 773 if (kue_newbuf(sc, c, NULL) == ENOBUFS) { 774 ifp->if_ierrors++; 775 goto done1; 776 } 777 778 #if NBPFILTER > 0 779 /* 780 * Handle BPF listeners. Let the BPF user see the packet, but 781 * don't pass it up to the ether_input() layer unless it's 782 * a broadcast packet, multicast packet, matches our ethernet 783 * address or the interface is in promiscuous mode. 784 */ 785 if (ifp->if_bpf) 786 bpf_mtap(ifp->if_bpf, m); 787 #endif 788 789 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev), 790 __func__, m->m_len)); 791 IF_INPUT(ifp, m); 792 done1: 793 splx(s); 794 795 done: 796 797 /* Setup new transfer. */ 798 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 799 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 800 USBD_NO_TIMEOUT, kue_rxeof); 801 usbd_transfer(c->kue_xfer); 802 803 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev), 804 __func__)); 805 } 806 807 /* 808 * A frame was downloaded to the chip. It's safe for us to clean up 809 * the list buffers. 810 */ 811 812 Static void 813 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 814 usbd_status status) 815 { 816 struct kue_chain *c = priv; 817 struct kue_softc *sc = c->kue_sc; 818 struct ifnet *ifp = GET_IFP(sc); 819 int s; 820 821 if (sc->kue_dying) 822 return; 823 824 s = splnet(); 825 826 DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev), 827 __func__, status)); 828 829 ifp->if_timer = 0; 830 ifp->if_flags &= ~IFF_OACTIVE; 831 832 if (status != USBD_NORMAL_COMPLETION) { 833 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 834 splx(s); 835 return; 836 } 837 ifp->if_oerrors++; 838 printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev), 839 usbd_errstr(status)); 840 if (status == USBD_STALLED) 841 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]); 842 splx(s); 843 return; 844 } 845 846 ifp->if_opackets++; 847 848 m_freem(c->kue_mbuf); 849 c->kue_mbuf = NULL; 850 851 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 852 kue_start(ifp); 853 854 splx(s); 855 } 856 857 Static int 858 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 859 { 860 int total_len; 861 struct kue_chain *c; 862 usbd_status err; 863 864 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 865 866 c = &sc->kue_cdata.kue_tx_chain[idx]; 867 868 /* 869 * Copy the mbuf data into a contiguous buffer, leaving two 870 * bytes at the beginning to hold the frame length. 871 */ 872 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 873 c->kue_mbuf = m; 874 875 total_len = m->m_pkthdr.len + 2; 876 /* XXX what's this? */ 877 total_len += 64 - (total_len % 64); 878 879 /* Frame length is specified in the first 2 bytes of the buffer. */ 880 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len; 881 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 882 883 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 884 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 885 kue_txeof); 886 887 /* Transmit */ 888 err = usbd_transfer(c->kue_xfer); 889 if (err != USBD_IN_PROGRESS) { 890 printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev), 891 usbd_errstr(err)); 892 kue_stop(sc); 893 return (EIO); 894 } 895 896 sc->kue_cdata.kue_tx_cnt++; 897 898 return (0); 899 } 900 901 Static void 902 kue_start(struct ifnet *ifp) 903 { 904 struct kue_softc *sc = ifp->if_softc; 905 struct mbuf *m_head = NULL; 906 907 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 908 909 if (sc->kue_dying) 910 return; 911 912 if (ifp->if_flags & IFF_OACTIVE) 913 return; 914 915 IFQ_POLL(&ifp->if_snd, m_head); 916 if (m_head == NULL) 917 return; 918 919 if (kue_send(sc, m_head, 0)) { 920 ifp->if_flags |= IFF_OACTIVE; 921 return; 922 } 923 924 IFQ_DEQUEUE(&ifp->if_snd, m_head); 925 926 #if NBPFILTER > 0 927 /* 928 * If there's a BPF listener, bounce a copy of this frame 929 * to him. 930 */ 931 if (ifp->if_bpf) 932 bpf_mtap(ifp->if_bpf, m_head); 933 #endif 934 935 ifp->if_flags |= IFF_OACTIVE; 936 937 /* 938 * Set a timeout in case the chip goes out to lunch. 939 */ 940 ifp->if_timer = 6; 941 } 942 943 Static void 944 kue_init(void *xsc) 945 { 946 struct kue_softc *sc = xsc; 947 struct ifnet *ifp = GET_IFP(sc); 948 int s; 949 u_char eaddr[ETHER_ADDR_LEN]; 950 951 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 952 953 if (ifp->if_flags & IFF_RUNNING) 954 return; 955 956 s = splnet(); 957 958 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 959 /* Set MAC address */ 960 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 961 962 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 963 964 /* If we want promiscuous mode, set the allframes bit. */ 965 if (ifp->if_flags & IFF_PROMISC) 966 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 967 968 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 969 970 /* I'm not sure how to tune these. */ 971 #if 0 972 /* 973 * Leave this one alone for now; setting it 974 * wrong causes lockups on some machines/controllers. 975 */ 976 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 977 #endif 978 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 979 980 /* Init TX ring. */ 981 if (kue_tx_list_init(sc) == ENOBUFS) { 982 printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev)); 983 splx(s); 984 return; 985 } 986 987 /* Init RX ring. */ 988 if (kue_rx_list_init(sc) == ENOBUFS) { 989 printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev)); 990 splx(s); 991 return; 992 } 993 994 /* Load the multicast filter. */ 995 kue_setmulti(sc); 996 997 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 998 if (kue_open_pipes(sc)) { 999 splx(s); 1000 return; 1001 } 1002 } 1003 1004 ifp->if_flags |= IFF_RUNNING; 1005 ifp->if_flags &= ~IFF_OACTIVE; 1006 1007 splx(s); 1008 } 1009 1010 Static int 1011 kue_open_pipes(struct kue_softc *sc) 1012 { 1013 usbd_status err; 1014 struct kue_chain *c; 1015 int i; 1016 1017 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1018 1019 /* Open RX and TX pipes. */ 1020 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 1021 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 1022 if (err) { 1023 printf("%s: open rx pipe failed: %s\n", 1024 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1025 return (EIO); 1026 } 1027 1028 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 1029 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 1030 if (err) { 1031 printf("%s: open tx pipe failed: %s\n", 1032 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1033 return (EIO); 1034 } 1035 1036 /* Start up the receive pipe. */ 1037 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1038 c = &sc->kue_cdata.kue_rx_chain[i]; 1039 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 1040 c, c->kue_buf, KUE_BUFSZ, 1041 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1042 kue_rxeof); 1043 DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev), 1044 __func__)); 1045 usbd_transfer(c->kue_xfer); 1046 } 1047 1048 return (0); 1049 } 1050 1051 Static int 1052 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 1053 { 1054 struct kue_softc *sc = ifp->if_softc; 1055 struct ifaddr *ifa = (struct ifaddr *)data; 1056 struct ifreq *ifr = (struct ifreq *)data; 1057 int s, error = 0; 1058 1059 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1060 1061 if (sc->kue_dying) 1062 return (EIO); 1063 1064 #ifdef DIAGNOSTIC 1065 if (!curproc) { 1066 printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev)); 1067 return EIO; 1068 } 1069 #endif 1070 1071 s = splnet(); 1072 1073 switch(command) { 1074 case SIOCINITIFADDR: 1075 ifp->if_flags |= IFF_UP; 1076 kue_init(sc); 1077 1078 switch (ifa->ifa_addr->sa_family) { 1079 #ifdef INET 1080 case AF_INET: 1081 #if defined(__NetBSD__) 1082 arp_ifinit(ifp, ifa); 1083 #else 1084 arp_ifinit(&sc->arpcom, ifa); 1085 #endif 1086 break; 1087 #endif /* INET */ 1088 } 1089 break; 1090 1091 case SIOCSIFMTU: 1092 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1093 error = EINVAL; 1094 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1095 error = 0; 1096 break; 1097 1098 case SIOCSIFFLAGS: 1099 if ((error = ifioctl_common(ifp, command, data)) != 0) 1100 break; 1101 if (ifp->if_flags & IFF_UP) { 1102 if (ifp->if_flags & IFF_RUNNING && 1103 ifp->if_flags & IFF_PROMISC && 1104 !(sc->kue_if_flags & IFF_PROMISC)) { 1105 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1106 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1107 sc->kue_rxfilt); 1108 } else if (ifp->if_flags & IFF_RUNNING && 1109 !(ifp->if_flags & IFF_PROMISC) && 1110 sc->kue_if_flags & IFF_PROMISC) { 1111 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1112 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1113 sc->kue_rxfilt); 1114 } else if (!(ifp->if_flags & IFF_RUNNING)) 1115 kue_init(sc); 1116 } else { 1117 if (ifp->if_flags & IFF_RUNNING) 1118 kue_stop(sc); 1119 } 1120 sc->kue_if_flags = ifp->if_flags; 1121 error = 0; 1122 break; 1123 case SIOCADDMULTI: 1124 case SIOCDELMULTI: 1125 kue_setmulti(sc); 1126 error = 0; 1127 break; 1128 default: 1129 error = ether_ioctl(ifp, command, data); 1130 break; 1131 } 1132 1133 splx(s); 1134 1135 return (error); 1136 } 1137 1138 Static void 1139 kue_watchdog(struct ifnet *ifp) 1140 { 1141 struct kue_softc *sc = ifp->if_softc; 1142 struct kue_chain *c; 1143 usbd_status stat; 1144 int s; 1145 1146 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1147 1148 if (sc->kue_dying) 1149 return; 1150 1151 ifp->if_oerrors++; 1152 printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev)); 1153 1154 s = splusb(); 1155 c = &sc->kue_cdata.kue_tx_chain[0]; 1156 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1157 kue_txeof(c->kue_xfer, c, stat); 1158 1159 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1160 kue_start(ifp); 1161 splx(s); 1162 } 1163 1164 /* 1165 * Stop the adapter and free any mbufs allocated to the 1166 * RX and TX lists. 1167 */ 1168 Static void 1169 kue_stop(struct kue_softc *sc) 1170 { 1171 usbd_status err; 1172 struct ifnet *ifp; 1173 int i; 1174 1175 DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__)); 1176 1177 ifp = GET_IFP(sc); 1178 ifp->if_timer = 0; 1179 1180 /* Stop transfers. */ 1181 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1182 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1183 if (err) { 1184 printf("%s: abort rx pipe failed: %s\n", 1185 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1186 } 1187 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1188 if (err) { 1189 printf("%s: close rx pipe failed: %s\n", 1190 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1191 } 1192 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1193 } 1194 1195 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1196 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1197 if (err) { 1198 printf("%s: abort tx pipe failed: %s\n", 1199 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1200 } 1201 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1202 if (err) { 1203 printf("%s: close tx pipe failed: %s\n", 1204 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1205 } 1206 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1207 } 1208 1209 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1210 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1211 if (err) { 1212 printf("%s: abort intr pipe failed: %s\n", 1213 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1214 } 1215 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1216 if (err) { 1217 printf("%s: close intr pipe failed: %s\n", 1218 USBDEVNAME(sc->kue_dev), usbd_errstr(err)); 1219 } 1220 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1221 } 1222 1223 /* Free RX resources. */ 1224 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1225 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) { 1226 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf); 1227 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL; 1228 } 1229 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1230 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1231 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1232 } 1233 } 1234 1235 /* Free TX resources. */ 1236 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1237 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) { 1238 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf); 1239 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL; 1240 } 1241 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1242 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1243 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1244 } 1245 } 1246 1247 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1248 } 1249
Indexes created Sat Sep 27 14:09:57 GMT 2025