The mlx5 PMD can inline packet data into transmitting descriptor (WQE) and free mbuf immediately as data no longer needed, for non-inline packets the mbuf pointer should be stored in elts array for coming freeing on send completion. There was an optimization on storing pointers in batch and there was missed storing mbuf for single packet if non-inline was explicitly requested by flag.
Signed-off-by: Viacheslav Ovsiienko <viachesl...@nvidia.com> --- drivers/net/mlx5/mlx5_tx.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/mlx5/mlx5_tx.h b/drivers/net/mlx5/mlx5_tx.h index f081921ffc..8e113e3778 100644 --- a/drivers/net/mlx5/mlx5_tx.h +++ b/drivers/net/mlx5/mlx5_tx.h @@ -3322,7 +3322,9 @@ mlx5_tx_burst_single_send(struct mlx5_txq_data *__rte_restrict txq, * if no inlining is configured, this is done * by calling routine in a batch copy. */ - MLX5_ASSERT(!MLX5_TXOFF_CONFIG(INLINE)); + if (MLX5_TXOFF_CONFIG(INLINE)) + txq->elts[txq->elts_head++ & txq->elts_m] = + loc->mbuf; --loc->elts_free; #ifdef MLX5_PMD_SOFT_COUNTERS /* Update sent data bytes counter. */ -- 2.18.1