From a99d51852052804831bf4758e4a4dcab5d2c6cba Mon Sep 17 00:00:00 2001 From: Ciara Power Date: Mon, 19 Oct 2020 15:48:47 +0200 Subject: [PATCH] net/fm10k: 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: Qi Zhang --- drivers/net/fm10k/fm10k_ethdev.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c index dc2979bdd2..c187088a33 100644 --- a/drivers/net/fm10k/fm10k_ethdev.c +++ b/drivers/net/fm10k/fm10k_ethdev.c @@ -10,6 +10,7 @@ #include #include #include +#include #include "fm10k.h" #include "base/fm10k_api.h" @@ -2939,7 +2940,8 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) if (rte_eal_process_type() != RTE_PROC_PRIMARY) { /* primary process has set the ftag flag and offloads */ txq = dev->data->tx_queues[0]; - if (fm10k_tx_vec_condition_check(txq)) { + if (fm10k_tx_vec_condition_check(txq) || + rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_128) { dev->tx_pkt_burst = fm10k_xmit_pkts; dev->tx_pkt_prepare = fm10k_prep_pkts; PMD_INIT_LOG(DEBUG, "Use regular Tx func"); @@ -2958,7 +2960,8 @@ fm10k_set_tx_function(struct rte_eth_dev *dev) txq = dev->data->tx_queues[i]; txq->tx_ftag_en = tx_ftag_en; /* Check if Vector Tx is satisfied */ - if (fm10k_tx_vec_condition_check(txq)) + if (fm10k_tx_vec_condition_check(txq) || + rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_128) use_sse = 0; } @@ -2992,7 +2995,8 @@ fm10k_set_rx_function(struct rte_eth_dev *dev) * conditions to be met. */ if (!fm10k_rx_vec_condition_check(dev) && - dev_info->rx_vec_allowed && !rx_ftag_en) { + dev_info->rx_vec_allowed && !rx_ftag_en && + rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) { if (dev->data->scattered_rx) dev->rx_pkt_burst = fm10k_recv_scattered_pkts_vec; else -- 2.20.1