C++ (Cpp) vmxnet3_cmd_ring_adv_next2comp示例

示例#1

文件： vmxnet3_rxtx.c 项目： gongleiarei/dpdk

static void
vmxnet3_tq_tx_complete(vmxnet3_tx_queue_t *txq)
{
	int completed = 0;
	struct rte_mbuf *mbuf;
	vmxnet3_comp_ring_t *comp_ring = &txq->comp_ring;
	struct Vmxnet3_TxCompDesc *tcd = (struct Vmxnet3_TxCompDesc *)
		(comp_ring->base + comp_ring->next2proc);

	while (tcd->gen == comp_ring->gen) {
		/* Release cmd_ring descriptor and free mbuf */
		VMXNET3_ASSERT(txq->cmd_ring.base[tcd->txdIdx].txd.eop == 1);
		while (txq->cmd_ring.next2comp != tcd->txdIdx) {
			mbuf = txq->cmd_ring.buf_info[txq->cmd_ring.next2comp].m;
			txq->cmd_ring.buf_info[txq->cmd_ring.next2comp].m = NULL;
			rte_pktmbuf_free_seg(mbuf);

			/* Mark the txd for which tcd was generated as completed */
			vmxnet3_cmd_ring_adv_next2comp(&txq->cmd_ring);
			completed++;
		}

		vmxnet3_comp_ring_adv_next2proc(comp_ring);
		tcd = (struct Vmxnet3_TxCompDesc *)(comp_ring->base +
						    comp_ring->next2proc);
	}

	PMD_TX_LOG(DEBUG, "Processed %d tx comps & command descs.", completed);
}

示例#2

文件： vmxnet3_rxtx.c 项目： AMildner/MoonGen

static inline void
vmxnet3_tq_tx_complete(vmxnet3_tx_queue_t *txq)
{
	int completed = 0;
	struct rte_mbuf *mbuf;
	vmxnet3_comp_ring_t *comp_ring = &txq->comp_ring;
	struct Vmxnet3_TxCompDesc *tcd = (struct Vmxnet3_TxCompDesc *)
		(comp_ring->base + comp_ring->next2proc);

	while (tcd->gen == comp_ring->gen) {

		/* Release cmd_ring descriptor and free mbuf */
#ifdef RTE_LIBRTE_VMXNET3_DEBUG_DRIVER
		VMXNET3_ASSERT(txq->cmd_ring.base[tcd->txdIdx].txd.eop == 1);
#endif
		mbuf = txq->cmd_ring.buf_info[tcd->txdIdx].m;
		if (unlikely(mbuf == NULL))
			rte_panic("EOP desc does not point to a valid mbuf");
		else
			rte_pktmbuf_free(mbuf);


		txq->cmd_ring.buf_info[tcd->txdIdx].m = NULL;
		/* Mark the txd for which tcd was generated as completed */
		vmxnet3_cmd_ring_adv_next2comp(&txq->cmd_ring);

		vmxnet3_comp_ring_adv_next2proc(comp_ring);
		tcd = (struct Vmxnet3_TxCompDesc *)(comp_ring->base +
						    comp_ring->next2proc);
		completed++;
	}

	PMD_TX_LOG(DEBUG, "Processed %d tx comps & command descs.", completed);
}

示例#3

文件： vmxnet3_rxtx.c 项目： gongleiarei/dpdk

static void
vmxnet3_cmd_ring_release_mbufs(vmxnet3_cmd_ring_t *ring)
{
	while (ring->next2comp != ring->next2fill) {
		/* No need to worry about tx desc ownership, device is quiesced by now. */
		vmxnet3_buf_info_t *buf_info = ring->buf_info + ring->next2comp;

		if (buf_info->m) {
			rte_pktmbuf_free(buf_info->m);
			buf_info->m = NULL;
			buf_info->bufPA = 0;
			buf_info->len = 0;
		}
		vmxnet3_cmd_ring_adv_next2comp(ring);
	}
}