[dpdk-dev] [PATCH v2] net/ice: fix txq vector path selection

[Alvin Zhang]

If Tx vector mode is disabled, the txq vector mode should be
disabled too.

This patch adds checking of Tx vector mode before enabling txq
vector mode.

Fixes: 28f9002ab67f ("net/ice: add Tx AVX512 offload path")
Cc: sta...@dpdk.org

Signed-off-by: Alvin Zhang <alvinx.zh...@intel.com>
---

v2: Update commit log.
---
 drivers/net/ice/ice_rxtx.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 92fbbc1..49abcb2 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -3303,13 +3303,6 @@
                if (tx_check_ret >= 0 &&
                    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
                        ad->tx_vec_allowed = true;
-                       for (i = 0; i < dev->data->nb_tx_queues; i++) {
-                               txq = dev->data->tx_queues[i];
-                               if (txq && ice_txq_vec_setup(txq)) {
-                                       ad->tx_vec_allowed = false;
-                                       break;
-                               }
-                       }
 
                        if (rte_vect_get_max_simd_bitwidth() >= 
RTE_VECT_SIMD_512 &&
                        rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1 &&
@@ -3329,6 +3322,15 @@
                        if (!use_avx512 && tx_check_ret == 
ICE_VECTOR_OFFLOAD_PATH)
                                ad->tx_vec_allowed = false;
 
+                       if (ad->tx_vec_allowed) {
+                               for (i = 0; i < dev->data->nb_tx_queues; i++) {
+                                       txq = dev->data->tx_queues[i];
+                                       if (txq && ice_txq_vec_setup(txq)) {
+                                               ad->tx_vec_allowed = false;
+                                               break;
+                                       }
+                               }
+                       }
                } else {
                        ad->tx_vec_allowed = false;
                }
-- 
1.8.3.1