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 <ciara.power@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index dc2979b..c187088 100644 (file)
--- 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