From: Ciara Power <ciara.po...@intel.com>
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.po...@intel.com>
Acked-by: Qi Zhang <qi.z.zh...@intel.com>
---
v4: Updated enum name.
---
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 <rte_dev.h>
#include <rte_spinlock.h>
#include <rte_kvargs.h>
+#include <rte_vect.h>
#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
--
2.23.0
