/*
* XXX the mbuf must be consumed
* this is NM_SEND_UP which builds a batch of packets and then
* sends them up on the last call with a NULL data.
* XXX at the moment packets are copied from the netmap buffer into mbufs
* and then again into NDIS packets. We could save one allocation and one
* copy, eventually.
*/
void *
nm_os_send_up(struct ifnet *ifp, struct mbuf *m, struct mbuf *prev)
{
void *head = NULL;
if (ndis_hooks.injectPacket != NULL) {
//DbgPrint("send_up_to_stack!");
if (m != NULL) {
head = ndis_hooks.injectPacket(ifp->pfilter, m->pkt, m->m_len, FALSE, prev);
m_freem(m);
} else {
ndis_hooks.injectPacket(ifp->pfilter, NULL, 0, FALSE, prev);
}
} else { /* we should not get here */
if (m != NULL)
m_freem(m);
}
return head;
}
/*
* Transmit routine used by generic_netmap_txsync(). Returns 0 on success
* and <> 0 on error (which may be packet drops or other errors).
*/
int
nm_os_generic_xmit_frame(struct nm_os_gen_arg *a)
{
void *cur;
PVOID toSend = (a->addr == NULL) ? a->head : a->tail;
if (ndis_hooks.injectPacket == NULL) { /* silently drop ? */
return 0;
}
cur = ndis_hooks.injectPacket(a->ifp->pfilter, a->addr, a->len, TRUE, toSend);
if (cur) {
a->tail = cur;
if (a->head == NULL)
a->head = cur;
}
return 0;
}