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net/iavf: 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>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
Ciara Power 2020-10-19 15:48:48 +02:00 committed by David Marchand
parent a99d518520
commit f28fbd1e6b
1 changed files with 11 additions and 6 deletions
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17
drivers/net/iavf/iavf_rxtx.c
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@ -23,6 +23,7 @@
#include <rte_udp.h>
#include <rte_ip.h>
#include <rte_net.h>
#include <rte_vect.h>
#include "iavf.h"
#include "iavf_rxtx.h"
@ -2104,14 +2105,16 @@ iavf_set_rx_function(struct rte_eth_dev *dev)
int i;
bool use_avx2 = false;
if (!iavf_rx_vec_dev_check(dev)) {
if (!iavf_rx_vec_dev_check(dev) &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
for (i = 0; i < dev->data->nb_rx_queues; i++) {
rxq = dev->data->rx_queues[i];
(void)iavf_rxq_vec_setup(rxq);
}
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1)
if ((rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
use_avx2 = true;
if (dev->data->scattered_rx) {
@ -2177,7 +2180,8 @@ iavf_set_tx_function(struct rte_eth_dev *dev)
int i;
bool use_avx2 = false;
if (!iavf_tx_vec_dev_check(dev)) {
if (!iavf_tx_vec_dev_check(dev) &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
for (i = 0; i < dev->data->nb_tx_queues; i++) {
txq = dev->data->tx_queues[i];
if (!txq)
@ -2185,8 +2189,9 @@ iavf_set_tx_function(struct rte_eth_dev *dev)
iavf_txq_vec_setup(txq);
}
if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1)
if ((rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) &&
rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
use_avx2 = true;
PMD_DRV_LOG(DEBUG, "Using %sVector Tx (port %d).",