net/mlx5: fix queue wrap-around of multi-packet send

[dpdk.git] / drivers / net / mlx5 / mlx5_rxtx.c

diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index 6c23899..fbfc5fb 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1038,11 +1038,13 @@ mlx5_tx_burst_mpw_inline(void *dpdk_txq, struct rte_mbuf **pkts,
                                rte_memcpy((void *)(uintptr_t)mpw.data.raw,
                                           (void *)addr,
                                           length);
-                               mpw.data.raw += length;
+
+                               if (length == max)
+                                       mpw.data.raw =
+                                               (volatile void *)txq->wqes;
+                               else
+                                       mpw.data.raw += length;
                        }
-                       if ((uintptr_t)mpw.data.raw ==
-                           (uintptr_t)tx_mlx5_wqe(txq, 1 << txq->wqe_n))
-                               mpw.data.raw = (volatile void *)txq->wqes;
                        ++mpw.pkts_n;
                        ++j;
                        if (mpw.pkts_n == MLX5_MPW_DSEG_MAX) {