C++ (Cpp) fwe_output_callback Examples

Example #1

File: if_fwe.c Project: 2trill2spill/freebsd

/* Async. stream output */
static void
fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp)
{
	struct mbuf *m;
	struct fw_xfer *xfer;
	struct fw_xferq *xferq;
	struct fw_pkt *fp;
	int i = 0;

	xfer = NULL;
	xferq = fwe->fd.fc->atq;
	while ((xferq->queued < xferq->maxq - 1) &&
			(ifp->if_snd.ifq_head != NULL)) {
		FWE_LOCK(fwe);
		xfer = STAILQ_FIRST(&fwe->xferlist);
		if (xfer == NULL) {
#if 0
			printf("if_fwe: lack of xfer\n");
#endif
			FWE_UNLOCK(fwe);
			break;
		}
		STAILQ_REMOVE_HEAD(&fwe->xferlist, link);
		FWE_UNLOCK(fwe);

		IF_DEQUEUE(&ifp->if_snd, m);
		if (m == NULL) {
			FWE_LOCK(fwe);
			STAILQ_INSERT_HEAD(&fwe->xferlist, xfer, link);
			FWE_UNLOCK(fwe);
			break;
		}
		BPF_MTAP(ifp, m);

		/* keep ip packet alignment for alpha */
		M_PREPEND(m, ETHER_ALIGN, M_NOWAIT);
		fp = &xfer->send.hdr;
		*(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr;
		fp->mode.stream.len = m->m_pkthdr.len;
		xfer->mbuf = m;
		xfer->send.pay_len = m->m_pkthdr.len;

		if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) {
			/* error */
			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
			/* XXX set error code */
			fwe_output_callback(xfer);
		} else {
			if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
			i++;
		}
	}
#if 0
	if (i > 1)
		printf("%d queued\n", i);
#endif
	if (i > 0)
		xferq->start(fwe->fd.fc);
}

Example #2

File: if_fwe.c Project: MarginC/kame

/* Async. stream output */
static void
fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp)
{
	struct mbuf *m;
	struct fw_xfer *xfer;
	struct fw_xferq *xferq;
	struct fw_pkt *fp;
	int i = 0;

	xfer = NULL;
	xferq = fwe->fd.fc->atq;
	while (xferq->queued < xferq->maxq) {
		IF_DEQUEUE(&ifp->if_snd, m);
		if (m == NULL)
			break;
		xfer = fw_xfer_alloc();
		if (xfer == NULL) {
			return;
		}
#if __FreeBSD_version >= 500000
		BPF_MTAP(ifp, m);
#else
		if (ifp->if_bpf != NULL)
			bpf_mtap(ifp, m);
#endif

		xfer->send.off = 0;
		xfer->spd = 2;
		xfer->fc = fwe->fd.fc;
		xfer->retry_req = fw_asybusy;
		xfer->sc = (caddr_t)fwe;
		xfer->act.hand = fwe_output_callback;

		/* keep ip packet alignment for alpha */
		M_PREPEND(m, ALIGN_PAD, M_DONTWAIT);
		fp = (struct fw_pkt *)&xfer->dst; /* XXX */
		xfer->dst = *((int32_t *)&fwe->pkt_hdr);
		fp->mode.stream.len = htons(m->m_pkthdr.len);
		xfer->send.buf = (caddr_t) fp;
		xfer->mbuf = m;
		xfer->send.len = m->m_pkthdr.len + HDR_LEN;

		i++;
		if (fw_asyreq(xfer->fc, -1, xfer) != 0) {
			/* error */
			ifp->if_oerrors ++;
			/* XXX set error code */
			fwe_output_callback(xfer);
		} else {
			ifp->if_opackets ++;
		}
	}
#if 0
	if (i > 1)
		printf("%d queued\n", i);
#endif
	if (xfer != NULL)
		xferq->start(xfer->fc);
}