Test Environment: ARM architecture, OpenEuler operating system
CPU: HUAWEI Kunpeng 920 5220, BIOS Vendor ID: HiSilicon
Network Card: Mellanox Technologies MT27800 Family [ConnectX-5]
DPDK program sending self-encapsulated packets with MAC, IP, and UDP headers
continuously prints the following errors and ceases packet transmission

mlx5_common: Failed to modify SQ using DevX
mlx5_net: Cannot change the Tx SQ state to RESET Remote I/O error

Signed-off-by: Wenbo Liu <liuwenbo...@gmail.com>
---
 drivers/net/mlx5/mlx5_tx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/mlx5/mlx5_tx.c b/drivers/net/mlx5/mlx5_tx.c
index 4286876..5cf9873 100644
--- a/drivers/net/mlx5/mlx5_tx.c
+++ b/drivers/net/mlx5/mlx5_tx.c
@@ -186,6 +186,7 @@
        volatile struct mlx5_cqe *last_cqe = NULL;
        bool ring_doorbell = false;
        int ret;
+       int offset = 0;
 
        do {
                volatile struct mlx5_cqe *cqe;
@@ -205,8 +206,11 @@
                         * here, before we might perform SQ reset.
                         */
                        rte_wmb();
+#if (RTE_CACHE_LINE_SIZE == 128)
+                        offset = 64;
+#endif
                        ret = mlx5_tx_error_cqe_handle
-                               (txq, (volatile struct mlx5_error_cqe *)cqe);
+                               (txq, (volatile struct mlx5_err_cqe *)(((char 
*)cqe) + offset));
                        if (unlikely(ret < 0)) {
                                /*
                                 * Some error occurred on queue error
-- 
1.8.3.1

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