net/bnxt: 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: Somnath Kotur <somnath.kotur@broadcom.com>

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 6c12369..32318cf 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -13,6 +13,7 @@
 #include <rte_cycles.h>
 #include <rte_alarm.h>
 #include <rte_kvargs.h>
+#include <rte_vect.h>
 
 #include "bnxt.h"
 #include "bnxt_filter.h"
@@ -1169,7 +1170,8 @@ bnxt_receive_function(struct rte_eth_dev *eth_dev)
                DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
                DEV_RX_OFFLOAD_RSS_HASH |
                DEV_RX_OFFLOAD_VLAN_FILTER)) &&
-           !BNXT_TRUFLOW_EN(bp) && BNXT_NUM_ASYNC_CPR(bp)) {
+           !BNXT_TRUFLOW_EN(bp) && BNXT_NUM_ASYNC_CPR(bp) &&
+           rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
                PMD_DRV_LOG(INFO, "Using vector mode receive for port %d\n",
                            eth_dev->data->port_id);
                bp->flags |= BNXT_FLAG_RX_VECTOR_PKT_MODE;
@@ -1202,7 +1204,8 @@ bnxt_transmit_function(__rte_unused struct rte_eth_dev *eth_dev)
         */
        if (!eth_dev->data->scattered_rx &&
            !(offloads & ~DEV_TX_OFFLOAD_MBUF_FAST_FREE) &&
-           !BNXT_TRUFLOW_EN(bp)) {
+           !BNXT_TRUFLOW_EN(bp) &&
+           rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
                PMD_DRV_LOG(INFO, "Using vector mode transmit for port %d\n",
                            eth_dev->data->port_id);
                return bnxt_xmit_pkts_vec;