int
uether_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
{
struct usb_ether *ue = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
struct mii_data *mii;
int error = 0;
switch (command) {
case SIOCSIFFLAGS:
UE_LOCK(ue);
if (ifp->if_flags & IFF_UP) {
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
ue_queue_command(ue, ue_promisc_task,
&ue->ue_promisc_task[0].hdr,
&ue->ue_promisc_task[1].hdr);
else
ue_queue_command(ue, ue_start_task,
&ue->ue_sync_task[0].hdr,
&ue->ue_sync_task[1].hdr);
} else {
ue_queue_command(ue, ue_stop_task,
&ue->ue_sync_task[0].hdr,
&ue->ue_sync_task[1].hdr);
}
UE_UNLOCK(ue);
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
UE_LOCK(ue);
ue_queue_command(ue, ue_setmulti_task,
&ue->ue_multi_task[0].hdr,
&ue->ue_multi_task[1].hdr);
UE_UNLOCK(ue);
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
if (ue->ue_miibus != NULL) {
mii = device_get_softc(ue->ue_miibus);
error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
} else
error = ether_ioctl(ifp, command, data);
break;
default:
error = ether_ioctl(ifp, command, data);
break;
}
return (error);
}
int
uether_ifattach(struct usb_ether *ue)
{
int error;
/* check some critical parameters */
if ((ue->ue_dev == NULL) ||
(ue->ue_udev == NULL) ||
(ue->ue_mtx == NULL) ||
(ue->ue_methods == NULL))
return (EINVAL);
error = usb_proc_create(&ue->ue_tq, ue->ue_mtx,
device_get_nameunit(ue->ue_dev), USB_PRI_MED);
if (error) {
device_printf(ue->ue_dev, "could not setup taskqueue\n");
goto error;
}
/* fork rest of the attach code */
UE_LOCK(ue);
ue_queue_command(ue, ue_attach_post_task,
&ue->ue_sync_task[0].hdr,
&ue->ue_sync_task[1].hdr);
UE_UNLOCK(ue);
error:
return (error);
}
static void
ue_init(void *arg)
{
struct usb_ether *ue = arg;
UE_LOCK(ue);
ue_queue_command(ue, ue_start_task,
&ue->ue_sync_task[0].hdr,
&ue->ue_sync_task[1].hdr);
UE_UNLOCK(ue);
}
static void
ue_start(struct ifnet *ifp)
{
struct usb_ether *ue = ifp->if_softc;
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
return;
UE_LOCK(ue);
ue->ue_methods->ue_start(ue);
UE_UNLOCK(ue);
}
static int
ue_ifmedia_upd(struct ifnet *ifp)
{
struct usb_ether *ue = ifp->if_softc;
/* Defer to process context */
UE_LOCK(ue);
ue_queue_command(ue, ue_ifmedia_task,
&ue->ue_media_task[0].hdr,
&ue->ue_media_task[1].hdr);
UE_UNLOCK(ue);
return (0);
}
static void
ue_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
{
struct usb_ether *ue = ifp->if_softc;
ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
if ((ifp->if_flags & IFF_RUNNING) == 0 ||
ifq_is_oactive(&ifp->if_snd))
return;
UE_LOCK(ue);
ue->ue_methods->ue_start(ue);
UE_UNLOCK(ue);
}
void
uether_ifdetach(struct usb_ether *ue)
{
struct ifnet *ifp;
/* wait for any post attach or other command to complete */
usb_proc_drain(&ue->ue_tq);
/* read "ifnet" pointer after taskqueue drain */
ifp = ue->ue_ifp;
if (ifp != NULL) {
/* we are not running any more */
UE_LOCK(ue);
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
UE_UNLOCK(ue);
/* drain any callouts */
usb_callout_drain(&ue->ue_watchdog);
/* detach miibus */
if (ue->ue_miibus != NULL) {
mtx_lock(&Giant); /* device_xxx() depends on this */
device_delete_child(ue->ue_dev, ue->ue_miibus);
mtx_unlock(&Giant);
}
/* detach ethernet */
ether_ifdetach(ifp);
/* free interface instance */
if_free(ifp);
/* free sysctl */
sysctl_ctx_free(&ue->ue_sysctl_ctx);
/* free unit */
free_unr(ueunit, ue->ue_unit);
}
/* free taskqueue, if any */
usb_proc_free(&ue->ue_tq);
}
void
uether_rxflush(struct usb_ether *ue)
{
struct ifnet *ifp = ue->ue_ifp;
struct mbuf *m;
UE_LOCK_ASSERT(ue, MA_OWNED);
for (;;) {
_IF_DEQUEUE(&ue->ue_rxq, m);
if (m == NULL)
break;
/*
* The USB xfer has been resubmitted so its safe to unlock now.
*/
UE_UNLOCK(ue);
ifp->if_input(ifp, m);
UE_LOCK(ue);
}
}
void
uether_ifdetach(struct usb_ether *ue)
{
struct ifnet *ifp;
/* wait for any post attach or other command to complete */
usb_proc_drain(&ue->ue_tq);
/* read "ifnet" pointer after taskqueue drain */
ifp = uether_getifp(ue);
if (ifp != NULL) {
/* we are not running any more */
UE_LOCK(ue);
ifp->if_flags &= ~IFF_RUNNING;
UE_UNLOCK(ue);
/* drain any callouts */
usb_callout_drain(&ue->ue_watchdog);
/* detach miibus */
if (ue->ue_miibus != NULL) {
device_delete_child(ue->ue_dev, ue->ue_miibus);
}
/* detach ethernet */
ether_ifdetach(ifp);
/* free sysctl */
sysctl_ctx_free(&ue->ue_sysctl_ctx);
/* free unit */
devfs_clone_bitmap_put(&DEVFS_CLONE_BITMAP(ue), ue->ue_unit);
}
/* free taskqueue, if any */
usb_proc_free(&ue->ue_tq);
}
static void
ue_attach_post_task(struct usb_proc_msg *_task)
{
struct usb_ether_cfg_task *task =
(struct usb_ether_cfg_task *)_task;
struct usb_ether *ue = task->ue;
struct ifnet *ifp;
int error;
char num[14]; /* sufficient for 32 bits */
/* first call driver's post attach routine */
ue->ue_methods->ue_attach_post(ue);
UE_UNLOCK(ue);
ue->ue_unit = alloc_unr(ueunit);
usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0);
sysctl_ctx_init(&ue->ue_sysctl_ctx);
ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
device_printf(ue->ue_dev, "could not allocate ifnet\n");
goto error;
}
ifp->if_softc = ue;
if_initname(ifp, "ue", ue->ue_unit);
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
if (ue->ue_methods->ue_ioctl != NULL)
ifp->if_ioctl = ue->ue_methods->ue_ioctl;
else
ifp->if_ioctl = uether_ioctl;
ifp->if_start = ue_start;
ifp->if_init = ue_init;
IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN);
ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN;
IFQ_SET_READY(&ifp->if_snd);
ue->ue_ifp = ifp;
if (ue->ue_methods->ue_mii_upd != NULL &&
ue->ue_methods->ue_mii_sts != NULL) {
mtx_lock(&Giant); /* device_xxx() depends on this */
error = mii_phy_probe(ue->ue_dev, &ue->ue_miibus,
ue_ifmedia_upd, ue->ue_methods->ue_mii_sts);
mtx_unlock(&Giant);
if (error) {
device_printf(ue->ue_dev, "MII without any PHY\n");
goto error;
}
}
if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev));
ether_ifattach(ifp, ue->ue_eaddr);
snprintf(num, sizeof(num), "%u", ue->ue_unit);
ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
&SYSCTL_NODE_CHILDREN(_net, ue),
OID_AUTO, num, CTLFLAG_RD, NULL, "");
SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO,
"%parent", CTLFLAG_RD, ue, 0,
ue_sysctl_parent, "A", "parent device");
UE_LOCK(ue);
return;
error:
free_unr(ueunit, ue->ue_unit);
if (ue->ue_ifp != NULL) {
if_free(ue->ue_ifp);
ue->ue_ifp = NULL;
}
UE_LOCK(ue);
return;
}
static void
ue_attach_post_task(struct usb_proc_msg *_task)
{
struct usb_ether_cfg_task *task =
(struct usb_ether_cfg_task *)_task;
struct usb_ether *ue = task->ue;
struct ifnet *ifp;
int error;
char num[14]; /* sufficient for 32 bits */
/* first call driver's post attach routine */
ue->ue_methods->ue_attach_post(ue);
UE_UNLOCK(ue);
ue->ue_unit = alloc_unr(ueunit);
usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0);
sysctl_ctx_init(&ue->ue_sysctl_ctx);
error = 0;
CURVNET_SET_QUIET(vnet0);
ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
device_printf(ue->ue_dev, "could not allocate ifnet\n");
goto fail;
}
ifp->if_softc = ue;
if_initname(ifp, "ue", ue->ue_unit);
if (ue->ue_methods->ue_attach_post_sub != NULL) {
ue->ue_ifp = ifp;
error = ue->ue_methods->ue_attach_post_sub(ue);
} else {
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
if (ue->ue_methods->ue_ioctl != NULL)
ifp->if_ioctl = ue->ue_methods->ue_ioctl;
else
ifp->if_ioctl = uether_ioctl;
ifp->if_start = ue_start;
ifp->if_init = ue_init;
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
IFQ_SET_READY(&ifp->if_snd);
ue->ue_ifp = ifp;
if (ue->ue_methods->ue_mii_upd != NULL &&
ue->ue_methods->ue_mii_sts != NULL) {
/* device_xxx() depends on this */
mtx_lock(&Giant);
error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
ue_ifmedia_upd, ue->ue_methods->ue_mii_sts,
BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0);
mtx_unlock(&Giant);
}
}
if (error) {
device_printf(ue->ue_dev, "attaching PHYs failed\n");
goto fail;
}
if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev));
ether_ifattach(ifp, ue->ue_eaddr);
/* Tell upper layer we support VLAN oversized frames. */
if (ifp->if_capabilities & IFCAP_VLAN_MTU)
ifp->if_hdrlen = sizeof(struct ether_vlan_header);
CURVNET_RESTORE();
snprintf(num, sizeof(num), "%u", ue->ue_unit);
ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
&SYSCTL_NODE_CHILDREN(_net, ue),
OID_AUTO, num, CTLFLAG_RD, NULL, "");
SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO,
"%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0,
ue_sysctl_parent, "A", "parent device");
UE_LOCK(ue);
return;
fail:
CURVNET_RESTORE();
free_unr(ueunit, ue->ue_unit);
if (ue->ue_ifp != NULL) {
if_free(ue->ue_ifp);
ue->ue_ifp = NULL;
}
UE_LOCK(ue);
return;
}
static void
ue_attach_post_task(struct usb_proc_msg *_task)
{
struct usb_ether_cfg_task *task =
(struct usb_ether_cfg_task *)_task;
struct usb_ether *ue = task->ue;
struct ifnet *ifp = uether_getifp(ue);
int error;
char num[14]; /* sufficient for 32 bits */
/* first call driver's post attach routine */
ue->ue_methods->ue_attach_post(ue);
UE_UNLOCK(ue);
KKASSERT(!lockowned(ue->ue_lock));
ue->ue_unit = devfs_clone_bitmap_get(&DEVFS_CLONE_BITMAP(ue), 0);
usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_lock, 0);
sysctl_ctx_init(&ue->ue_sysctl_ctx);
KKASSERT(!lockowned(ue->ue_lock));
error = 0;
ifp->if_softc = ue;
if_initname(ifp, "ue", ue->ue_unit);
if (ue->ue_methods->ue_attach_post_sub != NULL) {
error = ue->ue_methods->ue_attach_post_sub(ue);
KKASSERT(!lockowned(ue->ue_lock));
} else {
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
if (ue->ue_methods->ue_ioctl != NULL)
ifp->if_ioctl = ue->ue_methods->ue_ioctl;
else
ifp->if_ioctl = uether_ioctl;
ifp->if_start = ue_start;
ifp->if_init = ue_init;
ifq_set_maxlen(&ifp->if_snd, ifqmaxlen);
ifq_set_ready(&ifp->if_snd);
if (ue->ue_methods->ue_mii_upd != NULL &&
ue->ue_methods->ue_mii_sts != NULL) {
error = mii_phy_probe(ue->ue_dev, &ue->ue_miibus,
ue_ifmedia_upd, ue->ue_methods->ue_mii_sts);
}
}
if (error) {
device_printf(ue->ue_dev, "attaching PHYs failed\n");
goto fail;
}
if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev));
ether_ifattach(ifp, ue->ue_eaddr, NULL);
/* Tell upper layer we support VLAN oversized frames. */
if (ifp->if_capabilities & IFCAP_VLAN_MTU)
ifp->if_hdrlen = sizeof(struct ether_vlan_header);
ksnprintf(num, sizeof(num), "%u", ue->ue_unit);
ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
&SYSCTL_NODE_CHILDREN(_net, ue),
OID_AUTO, num, CTLFLAG_RD, NULL, "");
SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO,
"%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0,
ue_sysctl_parent, "A", "parent device");
KKASSERT(!lockowned(ue->ue_lock));
UE_LOCK(ue);
return;
fail:
devfs_clone_bitmap_put(&DEVFS_CLONE_BITMAP(ue), ue->ue_unit);
UE_LOCK(ue);
return;
}
