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net/enic: check max SIMD bitwidth

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When choosing a vector path to take, an extra condition must be
satisfied to ensure the max SIMD bitwidth allows for the CPU enabled
path.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
This commit is contained in:
Ciara Power 2020-10-19 15:48:46 +02:00 committed by David Marchand
parent 086f926647
commit ac61aa6463
1 changed files with 3 additions and 1 deletions
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4
drivers/net/enic/enic_rxtx_vec_avx2.c
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@ -5,6 +5,7 @@
#include <rte_mbuf.h>
#include <rte_ethdev_driver.h>
#include <rte_vect.h>
#include "enic_compat.h"
#include "rq_enet_desc.h"
@ -821,7 +822,8 @@ enic_use_vector_rx_handler(struct rte_eth_dev *eth_dev)
fconf = &eth_dev->data->dev_conf.fdir_conf;
if (fconf->mode != RTE_FDIR_MODE_NONE)
return false;
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2)) {
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256) {
ENICPMD_LOG(DEBUG, " use the non-scatter avx2 Rx handler");
eth_dev->rx_pkt_burst = &enic_noscatter_vec_recv_pkts;
enic->use_noscatter_vec_rx_handler = 1;