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NetBSD/sys/dev/usb/if_kue.c

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/* $NetBSD: if_kue.c,v 1.54 2005/05/30 04:21:39 christos Exp $ */
/*
* Copyright (c) 1997, 1998, 1999, 2000
* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $
*/
/*
* Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver.
*
* Written by Bill Paul <wpaul@ee.columbia.edu>
* Electrical Engineering Department
* Columbia University, New York City
*/
/*
* The KLSI USB to ethernet adapter chip contains an USB serial interface,
* ethernet MAC and embedded microcontroller (called the QT Engine).
* The chip must have firmware loaded into it before it will operate.
* Packets are passed between the chip and host via bulk transfers.
* There is an interrupt endpoint mentioned in the software spec, however
* it's currently unused. This device is 10Mbps half-duplex only, hence
* there is no media selection logic. The MAC supports a 128 entry
* multicast filter, though the exact size of the filter can depend
* on the firmware. Curiously, while the software spec describes various
* ethernet statistics counters, my sample adapter and firmware combination
* claims not to support any statistics counters at all.
*
* Note that once we load the firmware in the device, we have to be
* careful not to load it again: if you restart your computer but
* leave the adapter attached to the USB controller, it may remain
* powered on and retain its firmware. In this case, we don't need
* to load the firmware a second time.
*
* Special thanks to Rob Furr for providing an ADS Technologies
* adapter for development and testing. No monkeys were harmed during
* the development of this driver.
*/
/*
* Ported to NetBSD and somewhat rewritten by Lennart Augustsson.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.54 2005/05/30 04:21:39 christos Exp $");
#if defined(__NetBSD__)
#include "opt_inet.h"
#include "opt_ns.h"
#include "bpfilter.h"
#include "rnd.h"
#elif defined(__OpenBSD__)
#include "bpfilter.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <sys/proc.h>
#if NRND > 0
#include <sys/rnd.h>
#endif
#include <net/if.h>
#if defined(__NetBSD__)
#include <net/if_arp.h>
#endif
#include <net/if_dl.h>
#if NBPFILTER > 0
#include <net/bpf.h>
#endif
#if defined(__NetBSD__)
#include <net/if_ether.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_inarp.h>
#endif
#endif /* defined (__NetBSD__) */
#if defined(__OpenBSD__)
#ifdef INET
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#endif
#endif /* defined (__OpenBSD__) */
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
#endif
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/if_kuereg.h>
#include <dev/usb/kue_fw.h>
#ifdef KUE_DEBUG
#define DPRINTF(x) if (kuedebug) logprintf x
#define DPRINTFN(n,x) if (kuedebug >= (n)) logprintf x
int kuedebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
/*
* Various supported device vendors/products.
*/
Static const struct usb_devno kue_devs[] = {
{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 },
{ USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 },
{ USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 },
{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT },
{ USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX },
{ USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 },
{ USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA },
{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T },
{ USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C },
{ USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T },
{ USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 },
{ USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 },
{ USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT },
{ USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA },
{ USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 },
{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT },
{ USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN },
{ USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T },
{ USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA },
{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 },
{ USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 },
{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 },
{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 },
{ USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 },
{ USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA },
{ USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA },
{ USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E },
{ USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB },
};
#define kue_lookup(v, p) (usb_lookup(kue_devs, v, p))
USB_DECLARE_DRIVER(kue);
Static int kue_tx_list_init(struct kue_softc *);
Static int kue_rx_list_init(struct kue_softc *);
Static int kue_newbuf(struct kue_softc *, struct kue_chain *,struct mbuf *);
Static int kue_send(struct kue_softc *, struct mbuf *, int);
Static int kue_open_pipes(struct kue_softc *);
Static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
Static void kue_start(struct ifnet *);
Static int kue_ioctl(struct ifnet *, u_long, caddr_t);
Static void kue_init(void *);
Static void kue_stop(struct kue_softc *);
Static void kue_watchdog(struct ifnet *);
Static void kue_setmulti(struct kue_softc *);
Static void kue_reset(struct kue_softc *);
Static usbd_status kue_ctl(struct kue_softc *, int, u_int8_t,
u_int16_t, void *, u_int32_t);
Static usbd_status kue_setword(struct kue_softc *, u_int8_t, u_int16_t);
Static int kue_load_fw(struct kue_softc *);
Static usbd_status
kue_setword(struct kue_softc *sc, u_int8_t breq, u_int16_t word)
{
usb_device_request_t req;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = breq;
USETW(req.wValue, word);
USETW(req.wIndex, 0);
USETW(req.wLength, 0);
return (usbd_do_request(sc->kue_udev, &req, NULL));
}
Static usbd_status
kue_ctl(struct kue_softc *sc, int rw, u_int8_t breq, u_int16_t val,
void *data, u_int32_t len)
{
usb_device_request_t req;
DPRINTFN(10,("%s: %s: enter, len=%d\n", USBDEVNAME(sc->kue_dev),
__func__, len));
if (rw == KUE_CTL_WRITE)
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
else
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = breq;
USETW(req.wValue, val);
USETW(req.wIndex, 0);
USETW(req.wLength, len);
return (usbd_do_request(sc->kue_udev, &req, data));
}
Static int
kue_load_fw(struct kue_softc *sc)
{
usb_device_descriptor_t dd;
usbd_status err;
DPRINTFN(1,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
/*
* First, check if we even need to load the firmware.
* If the device was still attached when the system was
* rebooted, it may already have firmware loaded in it.
* If this is the case, we don't need to do it again.
* And in fact, if we try to load it again, we'll hang,
* so we have to avoid this condition if we don't want
* to look stupid.
*
* We can test this quickly by checking the bcdRevision
* code. The NIC will return a different revision code if
* it's probed while the firmware is still loaded and
* running.
*/
if (usbd_get_device_desc(sc->kue_udev, &dd))
return (EIO);
if (UGETW(dd.bcdDevice) == KUE_WARM_REV) {
printf("%s: warm boot, no firmware download\n",
USBDEVNAME(sc->kue_dev));
return (0);
}
printf("%s: cold boot, downloading firmware\n",
USBDEVNAME(sc->kue_dev));
/* Load code segment */
DPRINTFN(1,("%s: kue_load_fw: download code_seg\n",
USBDEVNAME(sc->kue_dev)));
/*XXXUNCONST*/
err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_code_seg), sizeof(kue_code_seg));
if (err) {
printf("%s: failed to load code segment: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
return (EIO);
}
/* Load fixup segment */
DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n",
USBDEVNAME(sc->kue_dev)));
/*XXXUNCONST*/
err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg));
if (err) {
printf("%s: failed to load fixup segment: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
return (EIO);
}
/* Send trigger command. */
DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n",
USBDEVNAME(sc->kue_dev)));
/*XXXUNCONST*/
err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN,
0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg));
if (err) {
printf("%s: failed to load trigger segment: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
return (EIO);
}
usbd_delay_ms(sc->kue_udev, 10);
/*
* Reload device descriptor.
* Why? The chip without the firmware loaded returns
* one revision code. The chip with the firmware
* loaded and running returns a *different* revision
* code. This confuses the quirk mechanism, which is
* dependent on the revision data.
*/
(void)usbd_reload_device_desc(sc->kue_udev);
DPRINTFN(1,("%s: %s: done\n", USBDEVNAME(sc->kue_dev), __func__));
/* Reset the adapter. */
kue_reset(sc);
return (0);
}
Static void
kue_setmulti(struct kue_softc *sc)
{
struct ifnet *ifp = GET_IFP(sc);
struct ether_multi *enm;
struct ether_multistep step;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
if (ifp->if_flags & IFF_PROMISC) {
allmulti:
ifp->if_flags |= IFF_ALLMULTI;
sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI;
sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST;
kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
return;
}
sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI;
i = 0;
#if defined (__NetBSD__)
ETHER_FIRST_MULTI(step, &sc->kue_ec, enm);
#else
ETHER_FIRST_MULTI(step, &sc->arpcom, enm);
#endif
while (enm != NULL) {
if (i == KUE_MCFILTCNT(sc) ||
memcmp(enm->enm_addrlo, enm->enm_addrhi,
ETHER_ADDR_LEN) != 0)
goto allmulti;
memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN);
ETHER_NEXT_MULTI(step, enm);
i++;
}
ifp->if_flags &= ~IFF_ALLMULTI;
sc->kue_rxfilt |= KUE_RXFILT_MULTICAST;
kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS,
i, sc->kue_mcfilters, i * ETHER_ADDR_LEN);
kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
}
/*
* Issue a SET_CONFIGURATION command to reset the MAC. This should be
* done after the firmware is loaded into the adapter in order to
* bring it into proper operation.
*/
Static void
kue_reset(struct kue_softc *sc)
{
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) ||
usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX,
&sc->kue_iface))
printf("%s: reset failed\n", USBDEVNAME(sc->kue_dev));
/* Wait a little while for the chip to get its brains in order. */
usbd_delay_ms(sc->kue_udev, 10);
}
/*
* Probe for a KLSI chip.
*/
USB_MATCH(kue)
{
USB_MATCH_START(kue, uaa);
DPRINTFN(25,("kue_match: enter\n"));
if (uaa->iface != NULL)
return (UMATCH_NONE);
return (kue_lookup(uaa->vendor, uaa->product) != NULL ?
UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
}
/*
* Attach the interface. Allocate softc structures, do
* setup and ethernet/BPF attach.
*/
USB_ATTACH(kue)
{
USB_ATTACH_START(kue, sc, uaa);
char *devinfop;
int s;
struct ifnet *ifp;
usbd_device_handle dev = uaa->device;
usbd_interface_handle iface;
usbd_status err;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
int i;
DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev));
devinfop = usbd_devinfo_alloc(dev, 0);
USB_ATTACH_SETUP;
printf("%s: %s\n", USBDEVNAME(sc->kue_dev), devinfop);
usbd_devinfo_free(devinfop);
err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1);
if (err) {
printf("%s: setting config no failed\n",
USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
sc->kue_udev = dev;
sc->kue_product = uaa->product;
sc->kue_vendor = uaa->vendor;
/* Load the firmware into the NIC. */
if (kue_load_fw(sc)) {
printf("%s: loading firmware failed\n",
USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface);
if (err) {
printf("%s: getting interface handle failed\n",
USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
sc->kue_iface = iface;
id = usbd_get_interface_descriptor(iface);
/* Find endpoints. */
for (i = 0; i < id->bNumEndpoints; i++) {
ed = usbd_interface2endpoint_descriptor(iface, i);
if (ed == NULL) {
printf("%s: couldn't get ep %d\n",
USBDEVNAME(sc->kue_dev), i);
USB_ATTACH_ERROR_RETURN;
}
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress;
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress;
}
}
if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) {
printf("%s: missing endpoint\n", USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
/* Read ethernet descriptor */
err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR,
0, &sc->kue_desc, sizeof(sc->kue_desc));
if (err) {
printf("%s: could not read Ethernet descriptor\n",
USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN,
M_USBDEV, M_NOWAIT);
if (sc->kue_mcfilters == NULL) {
printf("%s: no memory for multicast filter buffer\n",
USBDEVNAME(sc->kue_dev));
USB_ATTACH_ERROR_RETURN;
}
s = splnet();
/*
* A KLSI chip was detected. Inform the world.
*/
printf("%s: Ethernet address %s\n", USBDEVNAME(sc->kue_dev),
ether_sprintf(sc->kue_desc.kue_macaddr));
/* Initialize interface info.*/
ifp = GET_IFP(sc);
ifp->if_softc = sc;
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = kue_ioctl;
ifp->if_start = kue_start;
ifp->if_watchdog = kue_watchdog;
#if defined(__OpenBSD__)
ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
#endif
strncpy(ifp->if_xname, USBDEVNAME(sc->kue_dev), IFNAMSIZ);
IFQ_SET_READY(&ifp->if_snd);
/* Attach the interface. */
if_attach(ifp);
Ether_ifattach(ifp, sc->kue_desc.kue_macaddr);
#if NRND > 0
rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->kue_dev),
RND_TYPE_NET, 0);
#endif
sc->kue_attached = 1;
splx(s);
usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev,
USBDEV(sc->kue_dev));
USB_ATTACH_SUCCESS_RETURN;
}
USB_DETACH(kue)
{
USB_DETACH_START(kue, sc);
struct ifnet *ifp = GET_IFP(sc);
int s;
s = splusb(); /* XXX why? */
if (sc->kue_mcfilters != NULL) {
free(sc->kue_mcfilters, M_USBDEV);
sc->kue_mcfilters = NULL;
}
if (!sc->kue_attached) {
/* Detached before attached finished, so just bail out. */
splx(s);
return (0);
}
if (ifp->if_flags & IFF_RUNNING)
kue_stop(sc);
#if defined(__NetBSD__)
#if NRND > 0
rnd_detach_source(&sc->rnd_source);
#endif
ether_ifdetach(ifp);
#endif /* __NetBSD__ */
if_detach(ifp);
#ifdef DIAGNOSTIC
if (sc->kue_ep[KUE_ENDPT_TX] != NULL ||
sc->kue_ep[KUE_ENDPT_RX] != NULL ||
sc->kue_ep[KUE_ENDPT_INTR] != NULL)
printf("%s: detach has active endpoints\n",
USBDEVNAME(sc->kue_dev));
#endif
sc->kue_attached = 0;
splx(s);
return (0);
}
int
kue_activate(device_ptr_t self, enum devact act)
{
struct kue_softc *sc = (struct kue_softc *)self;
DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
switch (act) {
case DVACT_ACTIVATE:
return (EOPNOTSUPP);
break;
case DVACT_DEACTIVATE:
#if defined(__NetBSD__)
/* Deactivate the interface. */
if_deactivate(&sc->kue_ec.ec_if);
#endif
sc->kue_dying = 1;
break;
}
return (0);
}
/*
* Initialize an RX descriptor and attach an MBUF cluster.
*/
Static int
kue_newbuf(struct kue_softc *sc, struct kue_chain *c, struct mbuf *m)
{
struct mbuf *m_new = NULL;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
if (m == NULL) {
MGETHDR(m_new, M_DONTWAIT, MT_DATA);
if (m_new == NULL) {
printf("%s: no memory for rx list "
"-- packet dropped!\n", USBDEVNAME(sc->kue_dev));
return (ENOBUFS);
}
MCLGET(m_new, M_DONTWAIT);
if (!(m_new->m_flags & M_EXT)) {
printf("%s: no memory for rx list "
"-- packet dropped!\n", USBDEVNAME(sc->kue_dev));
m_freem(m_new);
return (ENOBUFS);
}
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
} else {
m_new = m;
m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
m_new->m_data = m_new->m_ext.ext_buf;
}
c->kue_mbuf = m_new;
return (0);
}
Static int
kue_rx_list_init(struct kue_softc *sc)
{
struct kue_cdata *cd;
struct kue_chain *c;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
cd = &sc->kue_cdata;
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
c = &cd->kue_rx_chain[i];
c->kue_sc = sc;
c->kue_idx = i;
if (kue_newbuf(sc, c, NULL) == ENOBUFS)
return (ENOBUFS);
if (c->kue_xfer == NULL) {
c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
if (c->kue_xfer == NULL)
return (ENOBUFS);
c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ);
if (c->kue_buf == NULL)
return (ENOBUFS); /* XXX free xfer */
}
}
return (0);
}
Static int
kue_tx_list_init(struct kue_softc *sc)
{
struct kue_cdata *cd;
struct kue_chain *c;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev), __func__));
cd = &sc->kue_cdata;
for (i = 0; i < KUE_TX_LIST_CNT; i++) {
c = &cd->kue_tx_chain[i];
c->kue_sc = sc;
c->kue_idx = i;
c->kue_mbuf = NULL;
if (c->kue_xfer == NULL) {
c->kue_xfer = usbd_alloc_xfer(sc->kue_udev);
if (c->kue_xfer == NULL)
return (ENOBUFS);
c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ);
if (c->kue_buf == NULL)
return (ENOBUFS);
}
}
return (0);
}
/*
* A frame has been uploaded: pass the resulting mbuf chain up to
* the higher level protocols.
*/
Static void
kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct kue_chain *c = priv;
struct kue_softc *sc = c->kue_sc;
struct ifnet *ifp = GET_IFP(sc);
struct mbuf *m;
int total_len = 0;
int s;
DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev),
__func__, status));
if (sc->kue_dying)
return;
if (!(ifp->if_flags & IFF_RUNNING))
return;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED)
return;
sc->kue_rx_errs++;
if (usbd_ratecheck(&sc->kue_rx_notice)) {
printf("%s: %u usb errors on rx: %s\n",
USBDEVNAME(sc->kue_dev), sc->kue_rx_errs,
usbd_errstr(status));
sc->kue_rx_errs = 0;
}
if (status == USBD_STALLED)
usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_RX]);
goto done;
}
usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", USBDEVNAME(sc->kue_dev),
__func__, total_len,
UGETW(mtod(c->kue_mbuf, u_int8_t *))));
if (total_len <= 1)
goto done;
m = c->kue_mbuf;
/* copy data to mbuf */
memcpy(mtod(m, char *), c->kue_buf, total_len);
/* No errors; receive the packet. */
total_len = UGETW(mtod(m, u_int8_t *));
m_adj(m, sizeof(u_int16_t));
if (total_len < sizeof(struct ether_header)) {
ifp->if_ierrors++;
goto done;
}
ifp->if_ipackets++;
m->m_pkthdr.len = m->m_len = total_len;
m->m_pkthdr.rcvif = ifp;
s = splnet();
/* XXX ugly */
if (kue_newbuf(sc, c, NULL) == ENOBUFS) {
ifp->if_ierrors++;
goto done1;
}
#if NBPFILTER > 0
/*
* Handle BPF listeners. Let the BPF user see the packet, but
* don't pass it up to the ether_input() layer unless it's
* a broadcast packet, multicast packet, matches our ethernet
* address or the interface is in promiscuous mode.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m);
#endif
DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->kue_dev),
__func__, m->m_len));
IF_INPUT(ifp, m);
done1:
splx(s);
done:
/* Setup new transfer. */
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, kue_rxeof);
usbd_transfer(c->kue_xfer);
DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->kue_dev),
__func__));
}
/*
* A frame was downloaded to the chip. It's safe for us to clean up
* the list buffers.
*/
Static void
kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
{
struct kue_chain *c = priv;
struct kue_softc *sc = c->kue_sc;
struct ifnet *ifp = GET_IFP(sc);
int s;
if (sc->kue_dying)
return;
s = splnet();
DPRINTFN(10,("%s: %s: enter status=%d\n", USBDEVNAME(sc->kue_dev),
__func__, status));
ifp->if_timer = 0;
ifp->if_flags &= ~IFF_OACTIVE;
if (status != USBD_NORMAL_COMPLETION) {
if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
splx(s);
return;
}
ifp->if_oerrors++;
printf("%s: usb error on tx: %s\n", USBDEVNAME(sc->kue_dev),
usbd_errstr(status));
if (status == USBD_STALLED)
usbd_clear_endpoint_stall(sc->kue_ep[KUE_ENDPT_TX]);
splx(s);
return;
}
ifp->if_opackets++;
m_freem(c->kue_mbuf);
c->kue_mbuf = NULL;
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
kue_start(ifp);
splx(s);
}
Static int
kue_send(struct kue_softc *sc, struct mbuf *m, int idx)
{
int total_len;
struct kue_chain *c;
usbd_status err;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
c = &sc->kue_cdata.kue_tx_chain[idx];
/*
* Copy the mbuf data into a contiguous buffer, leaving two
* bytes at the beginning to hold the frame length.
*/
m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2);
c->kue_mbuf = m;
total_len = m->m_pkthdr.len + 2;
/* XXX what's this? */
total_len += 64 - (total_len % 64);
/* Frame length is specified in the first 2 bytes of the buffer. */
c->kue_buf[0] = (u_int8_t)m->m_pkthdr.len;
c->kue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8);
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX],
c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT,
kue_txeof);
/* Transmit */
err = usbd_transfer(c->kue_xfer);
if (err != USBD_IN_PROGRESS) {
printf("%s: kue_send error=%s\n", USBDEVNAME(sc->kue_dev),
usbd_errstr(err));
kue_stop(sc);
return (EIO);
}
sc->kue_cdata.kue_tx_cnt++;
return (0);
}
Static void
kue_start(struct ifnet *ifp)
{
struct kue_softc *sc = ifp->if_softc;
struct mbuf *m_head = NULL;
DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
if (sc->kue_dying)
return;
if (ifp->if_flags & IFF_OACTIVE)
return;
IFQ_POLL(&ifp->if_snd, m_head);
if (m_head == NULL)
return;
if (kue_send(sc, m_head, 0)) {
ifp->if_flags |= IFF_OACTIVE;
return;
}
IFQ_DEQUEUE(&ifp->if_snd, m_head);
#if NBPFILTER > 0
/*
* If there's a BPF listener, bounce a copy of this frame
* to him.
*/
if (ifp->if_bpf)
bpf_mtap(ifp->if_bpf, m_head);
#endif
ifp->if_flags |= IFF_OACTIVE;
/*
* Set a timeout in case the chip goes out to lunch.
*/
ifp->if_timer = 6;
}
Static void
kue_init(void *xsc)
{
struct kue_softc *sc = xsc;
struct ifnet *ifp = GET_IFP(sc);
int s;
u_char *eaddr;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
if (ifp->if_flags & IFF_RUNNING)
return;
s = splnet();
#if defined(__NetBSD__)
eaddr = LLADDR(ifp->if_sadl);
#else
eaddr = sc->arpcom.ac_enaddr;
#endif /* defined(__NetBSD__) */
/* Set MAC address */
kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN);
sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST;
/* If we want promiscuous mode, set the allframes bit. */
if (ifp->if_flags & IFF_PROMISC)
sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt);
/* I'm not sure how to tune these. */
#if 0
/*
* Leave this one alone for now; setting it
* wrong causes lockups on some machines/controllers.
*/
kue_setword(sc, KUE_CMD_SET_SOFS, 1);
#endif
kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64);
/* Init TX ring. */
if (kue_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", USBDEVNAME(sc->kue_dev));
splx(s);
return;
}
/* Init RX ring. */
if (kue_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", USBDEVNAME(sc->kue_dev));
splx(s);
return;
}
/* Load the multicast filter. */
kue_setmulti(sc);
if (sc->kue_ep[KUE_ENDPT_RX] == NULL) {
if (kue_open_pipes(sc)) {
splx(s);
return;
}
}
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
}
Static int
kue_open_pipes(struct kue_softc *sc)
{
usbd_status err;
struct kue_chain *c;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
return (EIO);
}
err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
return (EIO);
}
/* Start up the receive pipe. */
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
c = &sc->kue_cdata.kue_rx_chain[i];
usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX],
c, c->kue_buf, KUE_BUFSZ,
USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT,
kue_rxeof);
DPRINTFN(5,("%s: %s: start read\n", USBDEVNAME(sc->kue_dev),
__func__));
usbd_transfer(c->kue_xfer);
}
return (0);
}
Static int
kue_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
{
struct kue_softc *sc = ifp->if_softc;
struct ifaddr *ifa = (struct ifaddr *)data;
struct ifreq *ifr = (struct ifreq *)data;
int s, error = 0;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
if (sc->kue_dying)
return (EIO);
#ifdef DIAGNOSTIC
if (!curproc) {
printf("%s: no proc!!\n", USBDEVNAME(sc->kue_dev));
return EIO;
}
#endif
s = splnet();
switch(command) {
case SIOCSIFADDR:
ifp->if_flags |= IFF_UP;
kue_init(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
#if defined(__NetBSD__)
arp_ifinit(ifp, ifa);
#else
arp_ifinit(&sc->arpcom, ifa);
#endif
break;
#endif /* INET */
#ifdef NS
case AF_NS:
{
struct ns_addr *ina = &IA_SNS(ifa)->sns_addr;
if (ns_nullhost(*ina))
ina->x_host = *(union ns_host *)
LLADDR(ifp->if_sadl);
else
memcpy(LLADDR(ifp->if_sadl),
ina->x_host.c_host,
ifp->if_addrlen);
break;
}
#endif /* NS */
}
break;
case SIOCSIFMTU:
if (ifr->ifr_mtu > ETHERMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCSIFFLAGS:
if (ifp->if_flags & IFF_UP) {
if (ifp->if_flags & IFF_RUNNING &&
ifp->if_flags & IFF_PROMISC &&
!(sc->kue_if_flags & IFF_PROMISC)) {
sc->kue_rxfilt |= KUE_RXFILT_PROMISC;
kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
sc->kue_rxfilt);
} else if (ifp->if_flags & IFF_RUNNING &&
!(ifp->if_flags & IFF_PROMISC) &&
sc->kue_if_flags & IFF_PROMISC) {
sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC;
kue_setword(sc, KUE_CMD_SET_PKT_FILTER,
sc->kue_rxfilt);
} else if (!(ifp->if_flags & IFF_RUNNING))
kue_init(sc);
} else {
if (ifp->if_flags & IFF_RUNNING)
kue_stop(sc);
}
sc->kue_if_flags = ifp->if_flags;
error = 0;
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
kue_setmulti(sc);
error = 0;
break;
default:
error = EINVAL;
break;
}
splx(s);
return (error);
}
Static void
kue_watchdog(struct ifnet *ifp)
{
struct kue_softc *sc = ifp->if_softc;
struct kue_chain *c;
usbd_status stat;
int s;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
if (sc->kue_dying)
return;
ifp->if_oerrors++;
printf("%s: watchdog timeout\n", USBDEVNAME(sc->kue_dev));
s = splusb();
c = &sc->kue_cdata.kue_tx_chain[0];
usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat);
kue_txeof(c->kue_xfer, c, stat);
if (IFQ_IS_EMPTY(&ifp->if_snd) == 0)
kue_start(ifp);
splx(s);
}
/*
* Stop the adapter and free any mbufs allocated to the
* RX and TX lists.
*/
Static void
kue_stop(struct kue_softc *sc)
{
usbd_status err;
struct ifnet *ifp;
int i;
DPRINTFN(5,("%s: %s: enter\n", USBDEVNAME(sc->kue_dev),__func__));
ifp = GET_IFP(sc);
ifp->if_timer = 0;
/* Stop transfers. */
if (sc->kue_ep[KUE_ENDPT_RX] != NULL) {
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]);
if (err) {
printf("%s: abort rx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]);
if (err) {
printf("%s: close rx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
sc->kue_ep[KUE_ENDPT_RX] = NULL;
}
if (sc->kue_ep[KUE_ENDPT_TX] != NULL) {
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]);
if (err) {
printf("%s: abort tx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]);
if (err) {
printf("%s: close tx pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
sc->kue_ep[KUE_ENDPT_TX] = NULL;
}
if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) {
err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
if (err) {
printf("%s: abort intr pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]);
if (err) {
printf("%s: close intr pipe failed: %s\n",
USBDEVNAME(sc->kue_dev), usbd_errstr(err));
}
sc->kue_ep[KUE_ENDPT_INTR] = NULL;
}
/* Free RX resources. */
for (i = 0; i < KUE_RX_LIST_CNT; i++) {
if (sc->kue_cdata.kue_rx_chain[i].kue_mbuf != NULL) {
m_freem(sc->kue_cdata.kue_rx_chain[i].kue_mbuf);
sc->kue_cdata.kue_rx_chain[i].kue_mbuf = NULL;
}
if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) {
usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer);
sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL;
}
}
/* Free TX resources. */
for (i = 0; i < KUE_TX_LIST_CNT; i++) {
if (sc->kue_cdata.kue_tx_chain[i].kue_mbuf != NULL) {
m_freem(sc->kue_cdata.kue_tx_chain[i].kue_mbuf);
sc->kue_cdata.kue_tx_chain[i].kue_mbuf = NULL;
}
if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) {
usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer);
sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL;
}
}
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
}
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