From ac61aa646322dc100689e03dbffdc9c5536cc23d Mon Sep 17 00:00:00 2001 From: Ciara Power Date: Mon, 19 Oct 2020 15:48:46 +0200 Subject: [PATCH] net/enic: check max SIMD bitwidth 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 Acked-by: Hyong Youb Kim --- drivers/net/enic/enic_rxtx_vec_avx2.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/enic/enic_rxtx_vec_avx2.c b/drivers/net/enic/enic_rxtx_vec_avx2.c index 676b9f5fdb..d39021f30c 100644 --- a/drivers/net/enic/enic_rxtx_vec_avx2.c +++ b/drivers/net/enic/enic_rxtx_vec_avx2.c @@ -5,6 +5,7 @@ #include #include +#include #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 = ð_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; -- 2.20.1