2 * Copyright (c) 1997, 1998, 1999, 2000
3 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
32 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.17.2.9 2003/04/13 02:39:25 murray Exp $
33 * $DragonFly: src/sys/dev/netif/kue/if_kue.c,v 1.25 2007/07/01 21:24:02 hasso Exp $
37 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver.
39 * Written by Bill Paul <wpaul@ee.columbia.edu>
40 * Electrical Engineering Department
41 * Columbia University, New York City
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.
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.
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.
68 #include <sys/param.h>
69 #include <sys/systm.h>
70 #include <sys/sockio.h>
72 #include <sys/malloc.h>
73 #include <sys/kernel.h>
74 #include <sys/socket.h>
78 #include <net/ifq_var.h>
79 #include <net/if_arp.h>
80 #include <net/ethernet.h>
81 #include <net/if_dl.h>
82 #include <net/if_media.h>
85 #include <machine/clock.h>
87 #include <bus/usb/usb.h>
88 #include <bus/usb/usbdi.h>
89 #include <bus/usb/usbdi_util.h>
90 #include <bus/usb/usbdivar.h>
91 #include <bus/usb/usbdevs.h>
92 #include <bus/usb/usb_ethersubr.h>
94 #include "if_kuereg.h"
95 #include <bus/usb/kue_fw.h>
97 MODULE_DEPEND(kue, usb, 1, 1, 1);
100 * Various supported device vendors/products.
102 static struct kue_type kue_devs[] = {
103 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 },
104 { USB_VENDOR_KLSI, USB_PRODUCT_AOX_USB101 },
105 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT },
106 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T },
107 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 },
108 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET },
109 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 },
110 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 },
111 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 },
112 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T },
113 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C },
114 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB },
115 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T },
116 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT },
117 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN },
118 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 },
119 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT },
120 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 },
124 static int kue_match(device_t);
125 static int kue_attach(device_t);
126 static int kue_detach(device_t);
127 static void kue_shutdown(device_t);
128 static int kue_tx_list_init(struct kue_softc *);
129 static int kue_rx_list_init(struct kue_softc *);
130 static int kue_newbuf(struct kue_softc *, struct kue_chain *, struct mbuf *);
131 static int kue_encap(struct kue_softc *, struct mbuf *, int);
132 static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
133 static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
134 static void kue_start(struct ifnet *);
135 static void kue_rxstart(struct ifnet *);
136 static int kue_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
137 static void kue_init(void *);
138 static void kue_stop(struct kue_softc *);
139 static void kue_watchdog(struct ifnet *);
141 static void kue_setmulti(struct kue_softc *);
142 static void kue_reset(struct kue_softc *);
144 static usbd_status kue_do_request(usbd_device_handle,
145 usb_device_request_t *, void *);
146 static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t,
147 u_int16_t, char *, int);
148 static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t);
149 static int kue_load_fw(struct kue_softc *);
151 static device_method_t kue_methods[] = {
152 /* Device interface */
153 DEVMETHOD(device_probe, kue_match),
154 DEVMETHOD(device_attach, kue_attach),
155 DEVMETHOD(device_detach, kue_detach),
156 DEVMETHOD(device_shutdown, kue_shutdown),
161 static driver_t kue_driver = {
164 sizeof(struct kue_softc)
167 static devclass_t kue_devclass;
169 DECLARE_DUMMY_MODULE(if_kue);
170 DRIVER_MODULE(kue, uhub, kue_driver, kue_devclass, usbd_driver_load, 0);
173 * We have a custom do_request function which is almost like the
174 * regular do_request function, except it has a much longer timeout.
175 * Why? Because we need to make requests over the control endpoint
176 * to download the firmware to the device, which can take longer
177 * than the default timeout.
180 kue_do_request(usbd_device_handle dev, usb_device_request_t *req, void *data)
182 usbd_xfer_handle xfer;
185 xfer = usbd_alloc_xfer(dev);
186 usbd_setup_default_xfer(xfer, dev, 0, 500000, req,
187 data, UGETW(req->wLength), USBD_SHORT_XFER_OK, 0);
188 err = usbd_sync_transfer(xfer);
189 usbd_free_xfer(xfer);
194 kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word)
196 usbd_device_handle dev;
197 usb_device_request_t req;
201 return(USBD_NORMAL_COMPLETION);
207 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
210 USETW(req.wValue, word);
211 USETW(req.wIndex, 0);
212 USETW(req.wLength, 0);
214 err = kue_do_request(dev, &req, NULL);
222 kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val,
225 usbd_device_handle dev;
226 usb_device_request_t req;
232 return(USBD_NORMAL_COMPLETION);
236 if (rw == KUE_CTL_WRITE)
237 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
239 req.bmRequestType = UT_READ_VENDOR_DEVICE;
242 USETW(req.wValue, val);
243 USETW(req.wIndex, 0);
244 USETW(req.wLength, len);
246 err = kue_do_request(dev, &req, data);
254 kue_load_fw(struct kue_softc *sc)
257 usb_device_descriptor_t *dd;
260 dd = &sc->kue_udev->ddesc;
261 hwrev = UGETW(dd->bcdDevice);
264 * First, check if we even need to load the firmware.
265 * If the device was still attached when the system was
266 * rebooted, it may already have firmware loaded in it.
267 * If this is the case, we don't need to do it again.
268 * And in fact, if we try to load it again, we'll hang,
269 * so we have to avoid this condition if we don't want
272 * We can test this quickly by checking the bcdRevision
273 * code. The NIC will return a different revision code if
274 * it's probed while the firmware is still loaded and
280 /* Load code segment */
281 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
282 0, kue_code_seg, sizeof(kue_code_seg));
284 kprintf("kue%d: failed to load code segment: %s\n",
285 sc->kue_unit, usbd_errstr(err));
289 /* Load fixup segment */
290 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
291 0, kue_fix_seg, sizeof(kue_fix_seg));
293 kprintf("kue%d: failed to load fixup segment: %s\n",
294 sc->kue_unit, usbd_errstr(err));
298 /* Send trigger command. */
299 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
300 0, kue_trig_seg, sizeof(kue_trig_seg));
302 kprintf("kue%d: failed to load trigger segment: %s\n",
303 sc->kue_unit, usbd_errstr(err));
311 kue_setmulti(struct kue_softc *sc)
314 struct ifmultiaddr *ifma;
317 ifp = &sc->arpcom.ac_if;
319 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
320 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
321 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
322 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
326 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI;
328 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
329 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
331 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
334 if (ifma->ifma_addr->sa_family != AF_LINK)
337 * If there are too many addresses for the
338 * internal filter, switch over to allmulti mode.
340 if (i == KUE_MCFILTCNT(sc))
342 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
343 KUE_MCFILT(sc, i), ETHER_ADDR_LEN);
347 if (i == KUE_MCFILTCNT(sc))
348 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
350 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
351 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
352 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
355 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
361 * Issue a SET_CONFIGURATION command to reset the MAC. This should be
362 * done after the firmware is loaded into the adapter in order to
363 * bring it into proper operation.
366 kue_reset(struct kue_softc *sc)
368 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 0) ||
369 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX,
371 kprintf("kue%d: getting interface handle failed\n",
375 /* Wait a little while for the chip to get its brains in order. */
381 * Probe for a KLSI chip.
384 kue_match(device_t self)
386 struct usb_attach_arg *uaa = device_get_ivars(self);
394 if (uaa->vendor == t->kue_vid &&
395 uaa->product == t->kue_did) {
396 return(UMATCH_VENDOR_PRODUCT);
405 * Attach the interface. Allocate softc structures, do
406 * setup and ethernet/BPF attach.
409 kue_attach(device_t self)
411 struct kue_softc *sc = device_get_softc(self);
412 struct usb_attach_arg *uaa = device_get_ivars(self);
416 usb_interface_descriptor_t *id;
417 usb_endpoint_descriptor_t *ed;
420 sc->kue_iface = uaa->iface;
421 sc->kue_udev = uaa->device;
422 sc->kue_unit = device_get_unit(self);
424 id = usbd_get_interface_descriptor(uaa->iface);
426 usbd_devinfo(uaa->device, 0, devinfo);
427 device_set_desc_copy(self, devinfo);
428 kprintf("%s: %s\n", device_get_nameunit(self), devinfo);
430 /* Find endpoints. */
431 for (i = 0; i < id->bNumEndpoints; i++) {
432 ed = usbd_interface2endpoint_descriptor(uaa->iface, i);
434 kprintf("kue%d: couldn't get ep %d\n",
438 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
439 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
440 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress;
441 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
442 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
443 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress;
444 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
445 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
446 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress;
450 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
451 mtx_init(&sc->kue_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK,
452 MTX_DEF | MTX_RECURSE);
456 /* Load the firmware into the NIC. */
457 if (kue_load_fw(sc)) {
459 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
460 mtx_destroy(&sc->kue_mtx);
465 /* Reset the adapter. */
468 /* Read ethernet descriptor */
469 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
470 0, (char *)&sc->kue_desc, sizeof(sc->kue_desc));
472 sc->kue_mcfilters = kmalloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
475 ifp = &sc->arpcom.ac_if;
477 if_initname(ifp, "kue", sc->kue_unit);
478 ifp->if_mtu = ETHERMTU;
479 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
480 ifp->if_ioctl = kue_ioctl;
481 ifp->if_start = kue_start;
482 ifp->if_watchdog = kue_watchdog;
483 ifp->if_init = kue_init;
484 ifp->if_baudrate = 10000000;
485 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
486 ifq_set_ready(&ifp->if_snd);
489 * Call MI attach routine.
491 ether_ifattach(ifp, sc->kue_desc.kue_macaddr, NULL);
492 usb_register_netisr();
501 kue_detach(device_t dev)
503 struct kue_softc *sc;
506 sc = device_get_softc(dev);
508 ifp = &sc->arpcom.ac_if;
515 if (sc->kue_ep[KUE_ENDPT_TX] != NULL)
516 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
517 if (sc->kue_ep[KUE_ENDPT_RX] != NULL)
518 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
519 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL)
520 usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
522 if (sc->kue_mcfilters != NULL)
523 kfree(sc->kue_mcfilters, M_USBDEV);
526 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
527 mtx_destroy(&sc->kue_mtx);
534 * Initialize an RX descriptor and attach an MBUF cluster.
537 kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m)
539 struct mbuf *m_new = NULL;
542 MGETHDR(m_new, MB_DONTWAIT, MT_DATA);
544 kprintf("kue%d: no memory for rx list "
545 "-- packet dropped!\n", sc->kue_unit);
549 MCLGET(m_new, MB_DONTWAIT);
550 if (!(m_new->m_flags & M_EXT)) {
551 kprintf("kue%d: no memory for rx list "
552 "-- packet dropped!\n", sc->kue_unit);
556 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
559 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
560 m_new->m_data = m_new->m_ext.ext_buf;
569 kue_rx_list_init(struct kue_softc *sc)
571 struct kue_cdata *cd;
576 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
577 c = &cd->kue_rx_chain[i];
580 if (kue_newbuf(sc, c, NULL) == ENOBUFS)
582 if (c->kue_xfer == NULL) {
583 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
584 if (c->kue_xfer == NULL)
593 kue_tx_list_init(struct kue_softc *sc)
595 struct kue_cdata *cd;
600 for (i = 0; i < KUE_TX_LIST_CNT; i++) {
601 c = &cd->kue_tx_chain[i];
605 if (c->kue_xfer == NULL) {
606 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
607 if (c->kue_xfer == NULL)
610 c->kue_buf = kmalloc(KUE_BUFSZ, M_USBDEV, M_WAITOK);
611 if (c->kue_buf == NULL)
619 kue_rxstart(struct ifnet *ifp)
621 struct kue_softc *sc;
626 c = &sc->kue_cdata.kue_rx_chain[sc->kue_cdata.kue_rx_prod];
628 if (kue_newbuf(sc, c, NULL) == ENOBUFS) {
633 /* Setup new transfer. */
634 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
635 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
636 USBD_NO_TIMEOUT, kue_rxeof);
637 usbd_transfer(c->kue_xfer);
645 * A frame has been uploaded: pass the resulting mbuf chain up to
646 * the higher level protocols.
649 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
651 struct kue_softc *sc;
661 ifp = &sc->arpcom.ac_if;
663 if (!(ifp->if_flags & IFF_RUNNING)) {
668 if (status != USBD_NORMAL_COMPLETION) {
669 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
673 if (usbd_ratecheck(&sc->kue_rx_notice))
674 kprintf("kue%d: usb error on rx: %s\n", sc->kue_unit,
675 usbd_errstr(status));
676 if (status == USBD_STALLED)
677 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_RX]);
681 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
686 len = *mtod(m, u_int16_t *);
687 m_adj(m, sizeof(u_int16_t));
689 /* No errors; receive the packet. */
692 if (len < sizeof(struct ether_header)) {
698 m->m_pkthdr.rcvif = ifp;
699 m->m_pkthdr.len = m->m_len = total_len;
701 /* Put the packet on the special USB input queue. */
710 /* Setup new transfer. */
711 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
712 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ, USBD_SHORT_XFER_OK,
713 USBD_NO_TIMEOUT, kue_rxeof);
714 usbd_transfer(c->kue_xfer);
721 * A frame was downloaded to the chip. It's safe for us to clean up
726 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
728 struct kue_softc *sc;
737 ifp = &sc->arpcom.ac_if;
739 ifp->if_flags &= ~IFF_OACTIVE;
741 if (status != USBD_NORMAL_COMPLETION) {
742 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
746 kprintf("kue%d: usb error on tx: %s\n", sc->kue_unit,
747 usbd_errstr(status));
748 if (status == USBD_STALLED)
749 usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_TX]);
754 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &err);
756 if (c->kue_mbuf != NULL) {
757 m_freem(c->kue_mbuf);
766 if (!ifq_is_empty(&ifp->if_snd))
767 (*ifp->if_start)(ifp);
775 kue_encap(struct kue_softc *sc, struct mbuf *m, int idx)
781 c = &sc->kue_cdata.kue_tx_chain[idx];
784 * Copy the mbuf data into a contiguous buffer, leaving two
785 * bytes at the beginning to hold the frame length.
787 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2);
790 total_len = m->m_pkthdr.len + 2;
791 total_len += 64 - (total_len % 64);
793 /* Frame length is specified in the first 2 bytes of the buffer. */
794 c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len;
795 c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
797 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX],
798 c, c->kue_buf, total_len, 0, 10000, kue_txeof);
801 err = usbd_transfer(c->kue_xfer);
802 if (err != USBD_IN_PROGRESS) {
807 sc->kue_cdata.kue_tx_cnt++;
813 kue_start(struct ifnet *ifp)
815 struct kue_softc *sc;
816 struct mbuf *m_head = NULL;
821 if (ifp->if_flags & IFF_OACTIVE) {
826 m_head = ifq_poll(&ifp->if_snd);
827 if (m_head == NULL) {
832 if (kue_encap(sc, m_head, 0)) {
833 ifp->if_flags |= IFF_OACTIVE;
837 ifq_dequeue(&ifp->if_snd, m_head);
840 * If there's a BPF listener, bounce a copy of this frame
843 BPF_MTAP(ifp, m_head);
845 ifp->if_flags |= IFF_OACTIVE;
848 * Set a timeout in case the chip goes out to lunch.
859 struct kue_softc *sc = xsc;
860 struct ifnet *ifp = &sc->arpcom.ac_if;
867 if (ifp->if_flags & IFF_RUNNING) {
872 /* Set MAC address */
873 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC,
874 0, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
876 sc->kue_rxfilt = KUE_RXFILT_UNICAST|KUE_RXFILT_BROADCAST;
878 /* If we want promiscuous mode, set the allframes bit. */
879 if (ifp->if_flags & IFF_PROMISC)
880 sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
882 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
884 /* I'm not sure how to tune these. */
887 * Leave this one alone for now; setting it
888 * wrong causes lockups on some machines/controllers.
890 kue_setword(sc, KUE_CMD_SET_SOFS, 1);
892 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64);
895 if (kue_tx_list_init(sc) == ENOBUFS) {
896 kprintf("kue%d: tx list init failed\n", sc->kue_unit);
902 if (kue_rx_list_init(sc) == ENOBUFS) {
903 kprintf("kue%d: rx list init failed\n", sc->kue_unit);
908 /* Load the multicast filter. */
911 /* Open RX and TX pipes. */
912 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX],
913 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]);
915 kprintf("kue%d: open rx pipe failed: %s\n",
916 sc->kue_unit, usbd_errstr(err));
921 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX],
922 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]);
924 kprintf("kue%d: open tx pipe failed: %s\n",
925 sc->kue_unit, usbd_errstr(err));
930 /* Start up the receive pipe. */
931 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
932 c = &sc->kue_cdata.kue_rx_chain[i];
933 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
934 c, mtod(c->kue_mbuf, char *), KUE_BUFSZ,
935 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, kue_rxeof);
936 usbd_transfer(c->kue_xfer);
939 ifp->if_flags |= IFF_RUNNING;
940 ifp->if_flags &= ~IFF_OACTIVE;
948 kue_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
950 struct kue_softc *sc = ifp->if_softc;
957 if (ifp->if_flags & IFF_UP) {
958 if (ifp->if_flags & IFF_RUNNING &&
959 ifp->if_flags & IFF_PROMISC &&
960 !(sc->kue_if_flags & IFF_PROMISC)) {
961 sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
962 kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
964 } else if (ifp->if_flags & IFF_RUNNING &&
965 !(ifp->if_flags & IFF_PROMISC) &&
966 sc->kue_if_flags & IFF_PROMISC) {
967 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
968 kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
970 } else if (!(ifp->if_flags & IFF_RUNNING))
973 if (ifp->if_flags & IFF_RUNNING)
976 sc->kue_if_flags = ifp->if_flags;
985 error = ether_ioctl(ifp, command, data);
995 kue_watchdog(struct ifnet *ifp)
997 struct kue_softc *sc;
1004 kprintf("kue%d: watchdog timeout\n", sc->kue_unit);
1006 c = &sc->kue_cdata.kue_tx_chain[0];
1007 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat);
1008 kue_txeof(c->kue_xfer, c, stat);
1010 if (ifq_is_empty(&ifp->if_snd))
1018 * Stop the adapter and free any mbufs allocated to the
1022 kue_stop(struct kue_softc *sc)
1029 ifp = &sc->arpcom.ac_if;
1032 /* Stop transfers. */
1033 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
1034 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
1036 kprintf("kue%d: abort rx pipe failed: %s\n",
1037 sc->kue_unit, usbd_errstr(err));
1039 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]);
1041 kprintf("kue%d: close rx pipe failed: %s\n",
1042 sc->kue_unit, usbd_errstr(err));
1044 sc->kue_ep[KUE_ENDPT_RX] = NULL;
1047 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) {
1048 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
1050 kprintf("kue%d: abort tx pipe failed: %s\n",
1051 sc->kue_unit, usbd_errstr(err));
1053 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]);
1055 kprintf("kue%d: close tx pipe failed: %s\n",
1056 sc->kue_unit, usbd_errstr(err));
1058 sc->kue_ep[KUE_ENDPT_TX] = NULL;
1061 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
1062 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
1064 kprintf("kue%d: abort intr pipe failed: %s\n",
1065 sc->kue_unit, usbd_errstr(err));
1067 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
1069 kprintf("kue%d: close intr pipe failed: %s\n",
1070 sc->kue_unit, usbd_errstr(err));
1072 sc->kue_ep[KUE_ENDPT_INTR] = NULL;
1075 /* Free RX resources. */
1076 for (i = 0; i < KUE_RX_LIST_CNT; i++) {
1077 if (sc->kue_cdata.kue_rx_chain[i].kue_buf != NULL) {
1078 kfree(sc->kue_cdata.kue_rx_chain[i].kue_buf, M_USBDEV);
1079 sc->kue_cdata.kue_rx_chain[i].kue_buf = NULL;
1081 if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) {
1082 m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf);
1083 sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL;
1085 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
1086 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
1087 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
1091 /* Free TX resources. */
1092 for (i = 0; i < KUE_TX_LIST_CNT; i++) {
1093 if (sc->kue_cdata.kue_tx_chain[i].kue_buf != NULL) {
1094 kfree(sc->kue_cdata.kue_tx_chain[i].kue_buf, M_USBDEV);
1095 sc->kue_cdata.kue_tx_chain[i].kue_buf = NULL;
1097 if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) {
1098 m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf);
1099 sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL;
1101 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
1102 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
1103 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
1107 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1114 * Stop all chip I/O so that the kernel's probe routines don't
1115 * get confused by errant DMAs when rebooting.
1118 kue_shutdown(device_t dev)
1120 struct kue_softc *sc;
1122 sc = device_get_softc(dev);