Differential D4295 Diff 10536 sys/dev/virtio/network/if_vtnet.c

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sys/dev/virtio/network/if_vtnet.c

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	return (rxq->vtnrx_tq == NULL ? ENOMEM : 0);			return (rxq->vtnrx_tq == NULL ? ENOMEM : 0);
	}			}

	static int			static int
	vtnet_init_txq(struct vtnet_softc *sc, int id)			vtnet_init_txq(struct vtnet_softc *sc, int id)
	{			{
	struct vtnet_txq *txq;			struct vtnet_txq *txq;
				int npairs;

	txq = &sc->vtnet_txqs[id];			txq = &sc->vtnet_txqs[id];
				npairs = sc->vtnet_max_vq_pairs;

	snprintf(txq->vtntx_name, sizeof(txq->vtntx_name), "%s-tx%d",			snprintf(txq->vtntx_name, sizeof(txq->vtntx_name), "%s-tx%d",
	device_get_nameunit(sc->vtnet_dev), id);			device_get_nameunit(sc->vtnet_dev), id);
	mtx_init(&txq->vtntx_mtx, txq->vtntx_name, NULL, MTX_DEF);			mtx_init(&txq->vtntx_mtx, txq->vtntx_name, NULL, MTX_DEF);

	txq->vtntx_sc = sc;			txq->vtntx_sc = sc;
	txq->vtntx_id = id;			txq->vtntx_id = id;

	txq->vtntx_sg = sglist_alloc(sc->vtnet_tx_nsegs, M_NOWAIT);			txq->vtntx_sg = sglist_alloc(sc->vtnet_tx_nsegs, M_NOWAIT);
	if (txq->vtntx_sg == NULL)			if (txq->vtntx_sg == NULL)
	return (ENOMEM);			return (ENOMEM);

	#ifndef VTNET_LEGACY_TX			#ifndef VTNET_LEGACY_TX
	txq->vtntx_br = buf_ring_alloc(VTNET_DEFAULT_BUFRING_SIZE, M_DEVBUF,			txq->vtntx_br = buf_ring_alloc(VTNET_DEFAULT_BUFRING_SIZE, M_DEVBUF,
	M_NOWAIT, &txq->vtntx_mtx);			M_NOWAIT, &txq->vtntx_mtx, id, npairs);
	if (txq->vtntx_br == NULL)			if (txq->vtntx_br == NULL)
	return (ENOMEM);			return (ENOMEM);

	TASK_INIT(&txq->vtntx_defrtask, 0, vtnet_txq_tq_deferred, txq);			TASK_INIT(&txq->vtntx_defrtask, 0, vtnet_txq_tq_deferred, txq);
	#endif			#endif
	TASK_INIT(&txq->vtntx_intrtask, 0, vtnet_txq_tq_intr, txq);			TASK_INIT(&txq->vtntx_intrtask, 0, vtnet_txq_tq_intr, txq);
	txq->vtntx_tq = taskqueue_create(txq->vtntx_name, M_NOWAIT,			txq->vtntx_tq = taskqueue_create(txq->vtntx_name, M_NOWAIT,
	taskqueue_thread_enqueue, &txq->vtntx_tq);			taskqueue_thread_enqueue, &txq->vtntx_tq);
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