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if_kue.c revision 1.58.10.5
      1 /*	$NetBSD: if_kue.c,v 1.58.10.5 2007/06/22 10:44:56 itohy 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 1.58.10.5 2007/06/22 10:44:56 itohy 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 #include <dev/usb/usb_ethersubr.h>
    131 
    132 #include <dev/usb/if_kuereg.h>
    133 #include <dev/usb/kue_fw.h>
    134 
    135 #ifdef KUE_DEBUG
    136 #define DPRINTF(x)	if (kuedebug) logprintf x
    137 #define DPRINTFN(n,x)	if (kuedebug >= (n)) logprintf x
    138 int	kuedebug = 0;
    139 #else
    140 #define DPRINTF(x)
    141 #define DPRINTFN(n,x)
    142 #endif
    143 
    144 /*
    145  * Various supported device vendors/products.
    146  */
    147 Static const struct usb_devno kue_devs[] = {
    148 	{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 },
    149 	{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 },
    150 	{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 },
    151 	{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT },
    152 	{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX },
    153 	{ USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 },
    154 	{ USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA },
    155 	{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T },
    156 	{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C },
    157 	{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T },
    158 	{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C },
    159 	{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 },
    160 	{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 },
    161 	{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 },
    162 	{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT },
    163 	{ USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA },
    164 	{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 },
    165 	{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT },
    166 	{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN },
    167 	{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T },
    168 	{ USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA },
    169 	{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 },
    170 	{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X },
    171 	{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET },
    172 	{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 },
    173 	{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 },
    174 	{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 },
    175 	{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 },
    176 	{ USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA },
    177 	{ USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA },
    178 	{ USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E },
    179 	{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB },
    180 };
    181 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p))
    182 
    183 USB_DECLARE_DRIVER(kue);
    184 
    185 Static int kue_send(struct kue_softc *, struct mbuf *, int);
    186 Static int kue_open_pipes(struct kue_softc *);
    187 Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
    188 Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
    189 Static void kue_start(struct ifnet *);
    190 Static int kue_ioctl(struct ifnet *, u_long, usb_ioctlarg_t);
    191 Static int kue_init(struct ifnet *);
    192 Static void kue_stop(struct ifnet *, int);
    193 Static void kue_watchdog(struct ifnet *);
    194 
    195 Static void kue_setmulti(struct kue_softc *);
    196 Static void kue_reset(struct kue_softc *);
    197 
    198 Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t,
    199 			   u_int16_t, void *, u_int32_t);
    200 Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t);
    201 Static int kue_load_fw(struct kue_softc *);
    202 
    203 Static usbd_status
    204 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word)
    205 {
    206 	usb_device_request_t	req;
    207 
    208 	DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
    209 
    210 	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    211 	req.bRequest = breq;
    212 	USETW(req.wValue, word);
    213 	USETW(req.wIndex, 0);
    214 	USETW(req.wLength, 0);
    215 
    216 	return (usbd_do_request(sc->kue_udev, &req, NULL));
    217 }
    218 
    219 Static usbd_status
    220 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val,
    221 	void *data, u_int32_t len)
    222 {
    223 	usb_device_request_t	req;
    224 
    225 	DPRINTFN(10,("%s: %s: enter, len=%d\n", USBDEVNAME(sc->kue_dev),
    226 		     __func__, len));
    227 
    228 	if (rw == KUE_CTL_WRITE)
    229 		req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
    230 	else
    231 		req.bmRequestType = UT_READ_VENDOR_DEVICE;
    232 
    233 	req.bRequest = breq;
    234 	USETW(req.wValue, val);
    235 	USETW(req.wIndex, 0);
    236 	USETW(req.wLength, len);
    237 
    238 	return (usbd_do_request(sc->kue_udev, &req, data));
    239 }
    240 
    241 Static int
    242 kue_load_fw(struct kue_softc *sc)
    243 {
    244 	usb_device_descriptor_t dd;
    245 	usbd_status		err;
    246 
    247 	DPRINTFN(1,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
    248 
    249 	/*
    250 	 * First, check if we even need to load the firmware.
    251 	 * If the device was still attached when the system was
    252 	 * rebooted, it may already have firmware loaded in it.
    253 	 * If this is the case, we don't need to do it again.
    254 	 * And in fact, if we try to load it again, we'll hang,
    255 	 * so we have to avoid this condition if we don't want
    256 	 * to look stupid.
    257 	 *
    258          * We can test this quickly by checking the bcdRevision
    259          * code. The NIC will return a different revision code if
    260          * it's probed while the firmware is still loaded and
    261          * running.
    262          */
    263 	if (usbd_get_device_desc(sc->kue_udev, &dd))
    264 		return (EIO);
    265         if (UGETW(dd.bcdDevice) == KUE_WARM_REV) {
    266 		printf("%s: warm boot, no firmware download\n",
    267 		       USBDEVNAME(sc->kue_dev));
    268 		return (0);
    269 	}
    270 
    271 	printf("%s: cold boot, downloading firmware\n",
    272 	       USBDEVNAME(sc->kue_dev));
    273 
    274 	/* Load code segment */
    275 	DPRINTFN(1,("%s: kue_load_fw: download code_seg\n",
    276 		    USBDEVNAME(sc->kue_dev)));
    277 	/*XXXUNCONST*/
    278 	err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
    279 	    0, __UNCONST(kue_code_seg), sizeof(kue_code_seg));
    280 	if (err) {
    281 		printf("%s: failed to load code segment: %s\n",
    282 		    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
    283 			return (EIO);
    284 	}
    285 
    286 	/* Load fixup segment */
    287 	DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n",
    288 		    USBDEVNAME(sc->kue_dev)));
    289 	/*XXXUNCONST*/
    290 	err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
    291 	    0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg));
    292 	if (err) {
    293 		printf("%s: failed to load fixup segment: %s\n",
    294 		    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
    295 			return (EIO);
    296 	}
    297 
    298 	/* Send trigger command. */
    299 	DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n",
    300 		    USBDEVNAME(sc->kue_dev)));
    301 	/*XXXUNCONST*/
    302 	err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
    303 	    0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg));
    304 	if (err) {
    305 		printf("%s: failed to load trigger segment: %s\n",
    306 		    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
    307 			return (EIO);
    308 	}
    309 
    310 	usbd_delay_ms(sc->kue_udev, 10);
    311 
    312 	/*
    313 	 * Reload device descriptor.
    314 	 * Why? The chip without the firmware loaded returns
    315 	 * one revision code. The chip with the firmware
    316 	 * loaded and running returns a *different* revision
    317 	 * code. This confuses the quirk mechanism, which is
    318 	 * dependent on the revision data.
    319 	 */
    320 	(void)usbd_reload_device_desc(sc->kue_udev);
    321 
    322 	DPRINTFN(1,("%s: %s: done\n", USBDEVNAME(sc->kue_dev), __func__));
    323 
    324 	/* Reset the adapter. */
    325 	kue_reset(sc);
    326 
    327 	return (0);
    328 }
    329 
    330 Static void
    331 kue_setmulti(struct kue_softc *sc)
    332 {
    333 	struct ifnet		*ifp = GET_IFP(sc);
    334 	struct ether_multi	*enm;
    335 	struct ether_multistep	step;
    336 	int			i;
    337 
    338 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
    339 
    340 	if (ifp->if_flags & IFF_PROMISC) {
    341 allmulti:
    342 		ifp->if_flags |= IFF_ALLMULTI;
    343 		sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
    344 		sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
    345 		kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
    346 		return;
    347 	}
    348 
    349 	sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI;
    350 
    351 	i = 0;
    352 #if defined (__NetBSD__)
    353 	ETHER_FIRST_MULTI(step, &sc->kue_ec, enm);
    354 #else
    355 	ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
    356 #endif
    357 	while (enm != NULL) {
    358 		if (i == KUE_MCFILTCNT(sc) ||
    359 		    memcmp(enm->enm_addrlo, enm->enm_addrhi,
    360 			ETHER_ADDR_LEN) != 0)
    361 			goto allmulti;
    362 
    363 		memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN);
    364 		ETHER_NEXT_MULTI(step, enm);
    365 		i++;
    366 	}
    367 
    368 	ifp->if_flags &= ~IFF_ALLMULTI;
    369 
    370 	sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
    371 	kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
    372 	    i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
    373 
    374 	kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
    375 }
    376 
    377 /*
    378  * Issue a SET_CONFIGURATION command to reset the MAC. This should be
    379  * done after the firmware is loaded into the adapter in order to
    380  * bring it into proper operation.
    381  */
    382 Static void
    383 kue_reset(struct kue_softc *sc)
    384 {
    385 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
    386 
    387 	if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) ||
    388 	    usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX,
    389 					 &sc->kue_iface))
    390 		printf("%s: reset failed\n", USBDEVNAME(sc->kue_dev));
    391 
    392 	/* Wait a little while for the chip to get its brains in order. */
    393 	usbd_delay_ms(sc->kue_udev, 10);
    394 }
    395 
    396 /*
    397  * Probe for a KLSI chip.
    398  */
    399 USB_MATCH(kue)
    400 {
    401 	USB_MATCH_START(kue, uaa);
    402 
    403 	DPRINTFN(25,("kue_match: enter\n"));
    404 
    405 #ifndef USB_USE_IFATTACH
    406 	if (uaa->iface != NULL)
    407 		return (UMATCH_NONE);
    408 #endif /* USB_USE_IFATTACH */
    409 
    410 	return (kue_lookup(uaa->vendor, uaa->product) != NULL ?
    411 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    412 }
    413 
    414 /*
    415  * Attach the interface. Allocate softc structures, do
    416  * setup and ethernet/BPF attach.
    417  */
    418 USB_ATTACH(kue)
    419 {
    420 	USB_ATTACH_START(kue, sc, uaa);
    421 	char			*devinfop;
    422 	int			s;
    423 	struct ifnet		*ifp;
    424 	usbd_device_handle	dev = uaa->device;
    425 	usbd_interface_handle	iface;
    426 	usbd_status		err;
    427 	usb_interface_descriptor_t	*id;
    428 	usb_endpoint_descriptor_t	*ed;
    429 	int			i;
    430 
    431 	DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev));
    432 
    433 	devinfop = usbd_devinfo_alloc(dev, 0);
    434 	USB_ATTACH_SETUP;
    435 	printf("%s: %s\n", USBDEVNAME(sc->kue_dev), devinfop);
    436 	usbd_devinfo_free(devinfop);
    437 
    438 	err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1);
    439 	if (err) {
    440 		printf("%s: setting config no failed\n",
    441 		    USBDEVNAME(sc->kue_dev));
    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 		printf("%s: loading firmware failed\n",
    452 		    USBDEVNAME(sc->kue_dev));
    453 		USB_ATTACH_ERROR_RETURN;
    454 	}
    455 
    456 	err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface);
    457 	if (err) {
    458 		printf("%s: getting interface handle failed\n",
    459 		    USBDEVNAME(sc->kue_dev));
    460 		USB_ATTACH_ERROR_RETURN;
    461 	}
    462 
    463 	sc->kue_iface = iface;
    464 	id = usbd_get_interface_descriptor(iface);
    465 
    466 	/* Find endpoints. */
    467 	for (i = 0; i < id->bNumEndpoints; i++) {
    468 		ed = usbd_interface2endpoint_descriptor(iface, i);
    469 		if (ed == NULL) {
    470 			printf("%s: couldn't get ep %d\n",
    471 			    USBDEVNAME(sc->kue_dev), i);
    472 			USB_ATTACH_ERROR_RETURN;
    473 		}
    474 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    475 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    476 			sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress;
    477 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    478 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    479 			sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress;
    480 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    481 			   UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    482 			sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress;
    483 		}
    484 	}
    485 
    486 	if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) {
    487 		printf("%s: missing endpoint\n", USBDEVNAME(sc->kue_dev));
    488 		USB_ATTACH_ERROR_RETURN;
    489 	}
    490 
    491 	/* Read ethernet descriptor */
    492 	err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
    493 	    0, &sc->kue_desc, sizeof(sc->kue_desc));
    494 	if (err) {
    495 		printf("%s: could not read Ethernet descriptor\n",
    496 		    USBDEVNAME(sc->kue_dev));
    497 		USB_ATTACH_ERROR_RETURN;
    498 	}
    499 
    500 	sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
    501 	    M_USBDEV, M_NOWAIT);
    502 	if (sc->kue_mcfilters == NULL) {
    503 		printf("%s: no memory for multicast filter buffer\n",
    504 		    USBDEVNAME(sc->kue_dev));
    505 		USB_ATTACH_ERROR_RETURN;
    506 	}
    507 
    508 	s = splnet();
    509 
    510 	/*
    511 	 * A KLSI chip was detected. Inform the world.
    512 	 */
    513 	printf("%s: Ethernet address %s\n", USBDEVNAME(sc->kue_dev),
    514 	    ether_sprintf(sc->kue_desc.kue_macaddr));
    515 
    516 	/* Initialize interface info.*/
    517 	ifp = GET_IFP(sc);
    518 	ifp->if_softc = sc;
    519 	ifp->if_mtu = ETHERMTU;
    520 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
    521 	ifp->if_ioctl = kue_ioctl;
    522 	ifp->if_start = kue_start;
    523 	ifp->if_init = kue_init;
    524 	ifp->if_stop = kue_stop;
    525 	ifp->if_watchdog = kue_watchdog;
    526 #if defined(__OpenBSD__)
    527 	ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
    528 #endif
    529 	strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ);
    530 
    531 	IFQ_SET_READY(&ifp->if_snd);
    532 
    533 	/* Attach the interface. */
    534 	if_attach(ifp);
    535 	Ether_ifattach(ifp, sc->kue_desc.kue_macaddr);
    536 #if NRND > 0
    537 	rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev),
    538 	    RND_TYPE_NET, 0);
    539 #endif
    540 
    541 	sc->kue_attached = 1;
    542 	splx(s);
    543 
    544 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev,
    545 			   USBDEV(sc->kue_dev));
    546 
    547 	USB_ATTACH_SUCCESS_RETURN;
    548 }
    549 
    550 USB_DETACH(kue)
    551 {
    552 	USB_DETACH_START(kue, sc);
    553 	struct ifnet		*ifp = GET_IFP(sc);
    554 	int			s;
    555 
    556 	s = splusb();		/* XXX why? */
    557 
    558 	if (sc->kue_mcfilters != NULL) {
    559 		free(sc->kue_mcfilters, M_USBDEV);
    560 		sc->kue_mcfilters = NULL;
    561 	}
    562 
    563 	if (!sc->kue_attached) {
    564 		/* Detached before attached finished, so just bail out. */
    565 		splx(s);
    566 		return (0);
    567 	}
    568 
    569 	if (ifp->if_flags & IFF_RUNNING)
    570 		kue_stop(ifp, 1);
    571 
    572 #if defined(__NetBSD__)
    573 #if NRND > 0
    574 	rnd_detach_source(&sc->rnd_source);
    575 #endif
    576 	ether_ifdetach(ifp);
    577 #endif /* __NetBSD__ */
    578 
    579 	if_detach(ifp);
    580 
    581 #ifdef DIAGNOSTIC
    582 	if (sc->kue_ep[KUE_ENDPT_TX] != NULL ||
    583 	    sc->kue_ep[KUE_ENDPT_RX] != NULL ||
    584 	    sc->kue_ep[KUE_ENDPT_INTR] != NULL)
    585 		printf("%s: detach has active endpoints\n",
    586 		       USBDEVNAME(sc->kue_dev));
    587 #endif
    588 
    589 	sc->kue_attached = 0;
    590 	splx(s);
    591 
    592 	return (0);
    593 }
    594 
    595 int
    596 kue_activate(device_ptr_t self, enum devact act)
    597 {
    598 	struct kue_softc *sc = (struct kue_softc *)self;
    599 
    600 	DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
    601 
    602 	switch (act) {
    603 	case DVACT_ACTIVATE:
    604 		return (EOPNOTSUPP);
    605 		break;
    606 
    607 	case DVACT_DEACTIVATE:
    608 #if defined(__NetBSD__)
    609 		/* Deactivate the interface. */
    610 		if_deactivate(&sc->kue_ec.ec_if);
    611 #endif
    612 		sc->kue_dying = 1;
    613 		break;
    614 	}
    615 	return (0);
    616 }
    617 
    618 /*
    619  * A frame has been uploaded: pass the resulting mbuf chain up to
    620  * the higher level protocols.
    621  */
    622 Static void
    623 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
    624 {
    625 	struct ue_chain		*c = priv;
    626 	struct kue_softc	*sc = (void *)c->ue_dev;
    627 	struct ifnet		*ifp = GET_IFP(sc);
    628 	struct mbuf		*m;
    629 	int			total_len = 0;
    630 	int			s;
    631 
    632 	DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev),
    633 		     __func__, status));
    634 
    635 	if (sc->kue_dying)
    636 		return;
    637 
    638 	if (!(ifp->if_flags & IFF_RUNNING))
    639 		return;
    640 
    641 	usbd_unmap_buffer(xfer);
    642 
    643 	if (status != USBD_NORMAL_COMPLETION) {
    644 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
    645 			return;
    646 		sc->kue_rx_errs++;
    647 		if (usbd_ratecheck(&sc->kue_rx_notice)) {
    648 			printf("%s: %u usb errors on rx: %s\n",
    649 			    USBDEVNAME(sc->kue_dev), sc->kue_rx_errs,
    650 			    usbd_errstr(status));
    651 			sc->kue_rx_errs = 0;
    652 		}
    653 		if (status == USBD_STALLED)
    654 			usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]);
    655 		goto done;
    656 	}
    657 
    658 	usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
    659 
    660 	DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev),
    661 		     __func__, total_len,
    662 		     UGETW(mtod(c->ue_mbuf, u_int8_t *))));
    663 
    664 	if (total_len <= 1)
    665 		goto done;
    666 
    667 	m = c->ue_mbuf;
    668 
    669 	/* No errors; receive the packet. */
    670 	total_len = UGETW(mtod(m, u_int8_t *));
    671 
    672 	if (total_len < sizeof(struct ether_header)) {
    673 		ifp->if_ierrors++;
    674 		goto done;
    675 	}
    676 
    677 	m_adj(m, sizeof(u_int16_t));
    678 
    679 	/*
    680 	 * Allocate new mbuf cluster for the next transfer.
    681 	 * If that failed, discard current packet and recycle the mbuf.
    682 	 */
    683 	if ((c->ue_mbuf = usb_ether_newbuf(NULL)) == NULL) {
    684 		printf("%s: no memory for rx list -- packet dropped!\n",
    685 		    USBDEVNAME(sc->kue_dev));
    686 		ifp->if_ierrors++;
    687 		c->ue_mbuf = usb_ether_newbuf(m);
    688 		goto done;
    689 	}
    690 
    691 	ifp->if_ipackets++;
    692 	m->m_pkthdr.len = m->m_len = total_len;
    693 
    694 	m->m_pkthdr.rcvif = ifp;
    695 
    696 	s = splnet();
    697 
    698 #if NBPFILTER > 0
    699 	/*
    700 	 * Handle BPF listeners. Let the BPF user see the packet, but
    701 	 * don't pass it up to the ether_input() layer unless it's
    702 	 * a broadcast packet, multicast packet, matches our ethernet
    703 	 * address or the interface is in promiscuous mode.
    704 	 */
    705 	if (ifp->if_bpf)
    706 		bpf_mtap(ifp->if_bpf, m);
    707 #endif
    708 
    709 	DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev),
    710 		    __func__, m->m_len));
    711 	IF_INPUT(ifp, m);
    712 	splx(s);
    713 
    714  done:
    715 
    716 	/* Setup new transfer. */
    717 	(void)usbd_map_buffer_mbuf(c->ue_xfer, c->ue_mbuf);
    718 	usbd_setup_xfer(c->ue_xfer, sc->kue_ep[KUE_ENDPT_RX],
    719 	    c, NULL /* XXX buf */, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY
    720 #ifdef __FreeBSD__	/* callback needs context */
    721 	    | USBD_CALLBACK_AS_TASK
    722 #endif
    723 	    ,
    724 	    USBD_NO_TIMEOUT, kue_rxeof);
    725 	usbd_transfer(c->ue_xfer);
    726 
    727 	DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev),
    728 		    __func__));
    729 }
    730 
    731 /*
    732  * A frame was downloaded to the chip. It's safe for us to clean up
    733  * the list buffers.
    734  */
    735 
    736 Static void
    737 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv,
    738     usbd_status status)
    739 {
    740 	struct ue_chain		*c = priv;
    741 	struct kue_softc	*sc = (void *)c->ue_dev;
    742 	struct ifnet		*ifp = GET_IFP(sc);
    743 	int			s;
    744 
    745 	if (sc->kue_dying)
    746 		return;
    747 
    748 	s = splnet();
    749 
    750 	DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev),
    751 		    __func__, status));
    752 
    753 	ifp->if_timer = 0;
    754 	ifp->if_flags &= ~IFF_OACTIVE;
    755 
    756 	usbd_unmap_buffer(xfer);
    757 
    758 	if (status != USBD_NORMAL_COMPLETION) {
    759 		if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
    760 			splx(s);
    761 			return;
    762 		}
    763 		ifp->if_oerrors++;
    764 		printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev),
    765 		    usbd_errstr(status));
    766 		if (status == USBD_STALLED)
    767 			usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]);
    768 		splx(s);
    769 		return;
    770 	}
    771 
    772 	ifp->if_opackets++;
    773 
    774 	m_freem(c->ue_mbuf);
    775 	c->ue_mbuf = NULL;
    776 
    777 	if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
    778 		kue_start(ifp);
    779 
    780 	splx(s);
    781 }
    782 
    783 Static int
    784 kue_send(struct kue_softc *sc, struct mbuf *m, int idx)
    785 {
    786 	int			total_len;
    787 	struct ue_chain		*c;
    788 	usbd_status		err;
    789 	int			ret;
    790 
    791 	DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
    792 
    793 	c = &sc->kue_cdata.kue_tx_chain[idx];
    794 
    795 	/* Prepend two bytes at the beginning to hold the frame length. */
    796 	M_PREPEND(m, 2, M_DONTWAIT);
    797 	if (m != NULL)
    798 		m = m_pullup(m, 2);	/* just in case */
    799 	if (m == NULL) {
    800 		GET_IFP(sc)->if_oerrors++;
    801 		return (ENOBUFS);
    802 	}
    803 
    804 	/*
    805 	 * Copy the mbuf data into a contiguous buffer, leaving two
    806 	 * bytes at the beginning to hold the frame length.
    807 	 */
    808 	c->ue_mbuf = m;
    809 
    810 	/* Frame length is specified in the first 2 bytes of the buffer. */
    811 	USETW(mtod(m, char *), m->m_pkthdr.len - 2);
    812 
    813 	total_len = m->m_pkthdr.len;
    814 	/* XXX what's this? */
    815 	total_len += 64 - (total_len % 64);
    816 	m_copyback(m, total_len - 1, 1, "");	/* expand mbuf chain */
    817 	if (m->m_pkthdr.len != total_len) {
    818 		m_freem(m);
    819 		return (ENOBUFS);
    820 	}
    821 
    822 	ret = usb_ether_map_tx_buffer_mbuf(c, m);
    823 	if (ret) {
    824 		m_freem(m);
    825 		return (ret);
    826 	}
    827 
    828 	usbd_setup_xfer(c->ue_xfer, sc->kue_ep[KUE_ENDPT_TX],
    829 	    c, NULL /* XXX buf */, total_len, USBD_NO_COPY
    830 #ifdef __FreeBSD__	/* callback needs context */
    831 	    | USBD_CALLBACK_AS_TASK
    832 #endif
    833 	    , USBD_DEFAULT_TIMEOUT,
    834 	    kue_txeof);
    835 
    836 	/* Transmit */
    837 	err = usbd_transfer(c->ue_xfer);
    838 	if (err != USBD_IN_PROGRESS) {
    839 		c->ue_mbuf = NULL;
    840 		m_freem(m);
    841 		printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev),
    842 		       usbd_errstr(err));
    843 		kue_stop(GET_IFP(sc), 0);
    844 		return (EIO);
    845 	}
    846 
    847 	sc->kue_cdata.kue_tx_cnt++;
    848 
    849 	return (0);
    850 }
    851 
    852 Static void
    853 kue_start(struct ifnet *ifp)
    854 {
    855 	struct kue_softc	*sc = ifp->if_softc;
    856 	struct mbuf		*m_head = NULL;
    857 
    858 	DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
    859 
    860 	if (sc->kue_dying)
    861 		return;
    862 
    863 	if (ifp->if_flags & IFF_OACTIVE)
    864 		return;
    865 
    866 	IFQ_POLL(&ifp->if_snd, m_head);
    867 	if (m_head == NULL)
    868 		return;
    869 
    870 	IFQ_DEQUEUE(&ifp->if_snd, m_head);
    871 
    872 #if NBPFILTER > 0
    873 	/*
    874 	 * If there's a BPF listener, bounce a copy of this frame
    875 	 * to him.
    876 	 */
    877 	if (ifp->if_bpf)
    878 		bpf_mtap(ifp->if_bpf, m_head);
    879 #endif
    880 
    881 	if (kue_send(sc, m_head, 0)) {
    882 		ifp->if_flags |= IFF_OACTIVE;
    883 		return;
    884 	}
    885 
    886 	ifp->if_flags |= IFF_OACTIVE;
    887 
    888 	/*
    889 	 * Set a timeout in case the chip goes out to lunch.
    890 	 */
    891 	ifp->if_timer = 6;
    892 }
    893 
    894 Static int
    895 kue_init(struct ifnet *ifp)
    896 {
    897 	struct kue_softc	*sc = ifp->if_softc;
    898 	int			s;
    899 	u_char			*eaddr;
    900 	struct ue_chain		*c;
    901 	int			i;
    902 
    903 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
    904 
    905 	if (ifp->if_flags & IFF_RUNNING)
    906 		return (EIO);
    907 
    908 	s = splnet();
    909 
    910 #if defined(__NetBSD__)
    911 	eaddr = LLADDR(ifp->if_sadl);
    912 #else
    913 	eaddr = sc->arpcom.ac_enaddr;
    914 #endif /* defined(__NetBSD__) */
    915 	/* Set MAC address */
    916 	kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN);
    917 
    918 	sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST;
    919 
    920 	 /* If we want promiscuous mode, set the allframes bit. */
    921 	if (ifp->if_flags & IFF_PROMISC)
    922 		sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
    923 
    924 	kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
    925 
    926 	/* I'm not sure how to tune these. */
    927 #if 0
    928 	/*
    929 	 * Leave this one alone for now; setting it
    930 	 * wrong causes lockups on some machines/controllers.
    931 	 */
    932 	kue_setword(sc, KUE_CMD_SET_SOFS, 1);
    933 #endif
    934 	kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64);
    935 
    936 	if (sc->kue_ep[KUE_ENDPT_RX] == NULL) {
    937 		if (kue_open_pipes(sc)) {
    938 			splx(s);
    939 			return (EIO);
    940 		}
    941 	}
    942 
    943 	/* Init TX ring. */
    944 	if ((i = usb_ether_tx_list_init(USBDEV(sc->kue_dev),
    945 	    sc->kue_cdata.kue_tx_chain, KUE_TX_LIST_CNT,
    946 	    sc->kue_udev, sc->kue_ep[KUE_ENDPT_TX], NULL))) {
    947 		printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev));
    948 		splx(s);
    949 		return (i);
    950 	}
    951 
    952 	/* Init RX ring. */
    953 	if ((i = usb_ether_rx_list_init(USBDEV(sc->kue_dev),
    954 	    sc->kue_cdata.kue_rx_chain, KUE_RX_LIST_CNT,
    955 	    sc->kue_udev, sc->kue_ep[KUE_ENDPT_RX]))) {
    956 		printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev));
    957 		splx(s);
    958 		return (i);
    959 	}
    960 
    961 	/* Load the multicast filter. */
    962 	kue_setmulti(sc);
    963 
    964 	/* Start up the receive pipe. */
    965 	for (i = 0; i < KUE_RX_LIST_CNT; i++) {
    966 		c = &sc->kue_cdata.kue_rx_chain[i];
    967 		(void)usbd_map_buffer_mbuf(c->ue_xfer, c->ue_mbuf);
    968 		usbd_setup_xfer(c->ue_xfer, sc->kue_ep[KUE_ENDPT_RX],
    969 		    c, NULL /* XXX buf */, KUE_BUFSZ,
    970 		    USBD_SHORT_XFER_OK | USBD_NO_COPY
    971 #ifdef __FreeBSD__	/* callback needs context */
    972 		    | USBD_CALLBACK_AS_TASK
    973 #endif
    974 		    , USBD_NO_TIMEOUT,
    975 		    kue_rxeof);
    976 		DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev),
    977 			    __func__));
    978 		usbd_transfer(c->ue_xfer);
    979 	}
    980 
    981 	ifp->if_flags |= IFF_RUNNING;
    982 	ifp->if_flags &= ~IFF_OACTIVE;
    983 
    984 	splx(s);
    985 	return (0);
    986 }
    987 
    988 Static int
    989 kue_open_pipes(struct kue_softc *sc)
    990 {
    991 	usbd_status		err;
    992 
    993 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
    994 
    995 	/* Open RX and TX pipes. */
    996 	err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX],
    997 	    USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]);
    998 	if (err) {
    999 		printf("%s: open rx pipe failed: %s\n",
   1000 		    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1001 		return (EIO);
   1002 	}
   1003 
   1004 	err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX],
   1005 	    USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]);
   1006 	if (err) {
   1007 		printf("%s: open tx pipe failed: %s\n",
   1008 		    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1009 		return (EIO);
   1010 	}
   1011 
   1012 	return (0);
   1013 }
   1014 
   1015 Static int
   1016 kue_ioctl(struct ifnet *ifp, u_long command, usb_ioctlarg_t data)
   1017 {
   1018 	struct kue_softc	*sc = ifp->if_softc;
   1019 #if 0
   1020 	struct ifaddr 		*ifa = (struct ifaddr *)data;
   1021 	struct ifreq		*ifr = (struct ifreq *)data;
   1022 #endif
   1023 	int			s, error = 0;
   1024 
   1025 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
   1026 
   1027 	if (sc->kue_dying)
   1028 		return (EIO);
   1029 
   1030 #ifdef DIAGNOSTIC
   1031 	if (!curproc) {
   1032 		printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev));
   1033 		return EIO;
   1034 	}
   1035 #endif
   1036 
   1037 	s = splnet();
   1038 
   1039 	switch(command) {
   1040 #if 0
   1041 	case SIOCSIFADDR:
   1042 		ifp->if_flags |= IFF_UP;
   1043 		kue_init(ifp);
   1044 
   1045 		switch (ifa->ifa_addr->sa_family) {
   1046 #ifdef INET
   1047 		case AF_INET:
   1048 #if defined(__NetBSD__)
   1049 			arp_ifinit(ifp, ifa);
   1050 #else
   1051 			arp_ifinit(&sc->arpcom, ifa);
   1052 #endif
   1053 			break;
   1054 #endif /* INET */
   1055 		}
   1056 		break;
   1057 
   1058 	case SIOCSIFMTU:
   1059 		if (ifr->ifr_mtu > ETHERMTU)
   1060 			error = EINVAL;
   1061 		else
   1062 			ifp->if_mtu = ifr->ifr_mtu;
   1063 		break;
   1064 #endif
   1065 
   1066 	case SIOCSIFFLAGS:
   1067 		if (ifp->if_flags & IFF_UP) {
   1068 			if (ifp->if_flags & IFF_RUNNING &&
   1069 			    ifp->if_flags & IFF_PROMISC &&
   1070 			    !(sc->kue_if_flags & IFF_PROMISC)) {
   1071 				sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
   1072 				kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
   1073 				    sc->kue_rxfilt);
   1074 			} else if (ifp->if_flags & IFF_RUNNING &&
   1075 			    !(ifp->if_flags & IFF_PROMISC) &&
   1076 			    sc->kue_if_flags & IFF_PROMISC) {
   1077 				sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
   1078 				kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
   1079 				    sc->kue_rxfilt);
   1080 			} else if (!(ifp->if_flags & IFF_RUNNING))
   1081 				kue_init(ifp);
   1082 		} else {
   1083 			if (ifp->if_flags & IFF_RUNNING)
   1084 				kue_stop(ifp, 1);
   1085 		}
   1086 		sc->kue_if_flags = ifp->if_flags;
   1087 		error = 0;
   1088 		break;
   1089 #if 0
   1090 	case SIOCADDMULTI:
   1091 	case SIOCDELMULTI:
   1092 		kue_setmulti(sc);
   1093 		error = 0;
   1094 		break;
   1095 #endif
   1096 	default:
   1097 		error = ether_ioctl(ifp, command, data);
   1098 		if (error == ENETRESET) {
   1099 			/*
   1100 			 * Multicast list has changed; set the hardware
   1101 			 * filter accordingly.
   1102 			 */
   1103 			if (ifp->if_flags & IFF_RUNNING)
   1104 				kue_setmulti(sc);
   1105 			error = 0;
   1106 		}
   1107 		break;
   1108 	}
   1109 
   1110 	splx(s);
   1111 
   1112 	return (error);
   1113 }
   1114 
   1115 Static void
   1116 kue_watchdog(struct ifnet *ifp)
   1117 {
   1118 	struct kue_softc	*sc = ifp->if_softc;
   1119 	struct ue_chain		*c;
   1120 	usbd_status		stat;
   1121 	int			s;
   1122 
   1123 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
   1124 
   1125 	if (sc->kue_dying)
   1126 		return;
   1127 
   1128 	ifp->if_oerrors++;
   1129 	printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev));
   1130 
   1131 	s = splusb();
   1132 	c = &sc->kue_cdata.kue_tx_chain[0];
   1133 	usbd_get_xfer_status(c->ue_xfer, NULL, NULL, NULL, &stat);
   1134 	kue_txeof(c->ue_xfer, c, stat);
   1135 
   1136 	if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
   1137 		kue_start(ifp);
   1138 	splx(s);
   1139 }
   1140 
   1141 /*
   1142  * Stop the adapter and free any mbufs allocated to the
   1143  * RX and TX lists.
   1144  */
   1145 Static void
   1146 kue_stop(struct ifnet *ifp, int disable)
   1147 {
   1148 	struct kue_softc	*sc = ifp->if_softc;
   1149 	usbd_status		err;
   1150 
   1151 	DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
   1152 
   1153 	ifp = GET_IFP(sc);
   1154 	ifp->if_timer = 0;
   1155 
   1156 	/* Stop transfers. */
   1157 	if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
   1158 		err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
   1159 		if (err) {
   1160 			printf("%s: abort rx pipe failed: %s\n",
   1161 			    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1162 		}
   1163 	}
   1164 
   1165 	if (sc->kue_ep[KUE_ENDPT_TX] != NULL) {
   1166 		err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
   1167 		if (err) {
   1168 			printf("%s: abort tx pipe failed: %s\n",
   1169 			    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1170 		}
   1171 	}
   1172 
   1173 	if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
   1174 		err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
   1175 		if (err) {
   1176 			printf("%s: abort intr pipe failed: %s\n",
   1177 			    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1178 		}
   1179 	}
   1180 
   1181 	/* Free RX/TX resources. */
   1182 	usb_ether_rx_list_free(sc->kue_cdata.kue_rx_chain, KUE_RX_LIST_CNT);
   1183 	usb_ether_tx_list_free(sc->kue_cdata.kue_tx_chain, KUE_TX_LIST_CNT);
   1184 
   1185 	/* Close pipes. */
   1186 	if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
   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_close_pipe(sc->kue_ep[KUE_ENDPT_TX]);
   1197 		if (err) {
   1198 			printf("%s: close tx pipe failed: %s\n",
   1199 			    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1200 		}
   1201 		sc->kue_ep[KUE_ENDPT_TX] = NULL;
   1202 	}
   1203 
   1204 	if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
   1205 		err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
   1206 		if (err) {
   1207 			printf("%s: close intr pipe failed: %s\n",
   1208 			    USBDEVNAME(sc->kue_dev), usbd_errstr(err));
   1209 		}
   1210 		sc->kue_ep[KUE_ENDPT_INTR] = NULL;
   1211 	}
   1212 
   1213 	ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
   1214 }
   1215