Function bnxt_receive_function

dpdk/drivers/net/bnxt/bnxt_ethdev.c:1240–1312

}

static eth_rx_burst_t
bnxt_receive_function(struct rte_eth_dev *eth_dev)
{
	struct bnxt *bp = eth_dev->data->dev_private;

	/* Disable vector mode RX for Stingray2 for now */
	if (BNXT_CHIP_SR2(bp)) {
		bp->flags &= ~BNXT_FLAG_RX_VECTOR_PKT_MODE;
		return bnxt_recv_pkts;
	}

#if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
	/* Vector mode receive cannot be enabled if scattered rx is in use. */
	if (eth_dev->data->scattered_rx)
		goto use_scalar_rx;

	/*
	 * Vector mode receive cannot be enabled if Truflow is enabled or if
	 * asynchronous completions and receive completions can be placed in
	 * the same completion ring.
	 */
	if (BNXT_TRUFLOW_EN(bp) || !BNXT_NUM_ASYNC_CPR(bp))
		goto use_scalar_rx;

	/*
	 * Vector mode receive cannot be enabled if any receive offloads outside
	 * a limited subset have been enabled.
	 */
	if (eth_dev->data->dev_conf.rxmode.offloads &
		~(RTE_ETH_RX_OFFLOAD_VLAN_STRIP |
		  RTE_ETH_RX_OFFLOAD_KEEP_CRC |
		  RTE_ETH_RX_OFFLOAD_IPV4_CKSUM |
		  RTE_ETH_RX_OFFLOAD_UDP_CKSUM |
		  RTE_ETH_RX_OFFLOAD_TCP_CKSUM |
		  RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM |
		  RTE_ETH_RX_OFFLOAD_OUTER_UDP_CKSUM |
		  RTE_ETH_RX_OFFLOAD_RSS_HASH |
		  RTE_ETH_RX_OFFLOAD_VLAN_FILTER))
		goto use_scalar_rx;

	if (bp->ieee_1588)
		goto use_scalar_rx;

#if defined(RTE_ARCH_X86)
	if (rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256 &&
	    rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1) {
		PMD_DRV_LOG(INFO,
			    "Using AVX2 vector mode receive for port %d\n",
			    eth_dev->data->port_id);
		bp->flags |= BNXT_FLAG_RX_VECTOR_PKT_MODE;
		return bnxt_recv_pkts_vec_avx2;
	}
 #endif
	if (rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
		PMD_DRV_LOG(INFO,
			    "Using SSE vector mode receive for port %d\n",
			    eth_dev->data->port_id);
		bp->flags |= BNXT_FLAG_RX_VECTOR_PKT_MODE;