[dpdk-dev] [PATCH 20.11 05/12] net/bnxt: add checks for max SIMD bitwidth

[Ciara Power]

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.

Cc: Ajit Khaparde <ajit.khapa...@broadcom.com>
Cc: Somnath Kotur <somnath.ko...@broadcom.com>

Signed-off-by: Ciara Power <ciara.po...@intel.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 510a0d9e0a..626aae8881 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1100,7 +1100,8 @@ 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_TRUFLOW_EN(bp) && rte_get_max_simd_bitwidth()
+                       >= RTE_MAX_128_SIMD) {
                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;
@@ -1132,7 +1133,8 @@ bnxt_transmit_function(__rte_unused struct rte_eth_dev 
*eth_dev)
         */
        if (!eth_dev->data->scattered_rx &&
            !eth_dev->data->dev_conf.txmode.offloads &&
-           !BNXT_TRUFLOW_EN(bp)) {
+           !BNXT_TRUFLOW_EN(bp) &&
+           rte_get_max_simd_bitwidth() >= RTE_MAX_128_SIMD) {
                PMD_DRV_LOG(INFO, "Using vector mode transmit for port %d\n",
                            eth_dev->data->port_id);
                return bnxt_xmit_pkts_vec;
-- 
2.17.1