net/mlx5: prefetch CQEs for a faster decompression

[dpdk.git] / drivers / net / mlx5 / mlx5_rxtx_vec_neon.h

diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
index 701e5e0..7b6c5db 100644 (file)
--- a/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
+++ b/drivers/net/mlx5/mlx5_rxtx_vec_neon.h
@@ -145,9 +145,9 @@ rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
                                    -1UL << ((mcqe_n - pos) *
                                             sizeof(uint16_t) * 8) : 0);
 #endif
-
-               if (!(pos & 0x7) && pos + 8 < mcqe_n)
-                       rte_prefetch0((void *)(cq + pos + 8));
+               for (i = 0; i < MLX5_VPMD_DESCS_PER_LOOP; ++i)
+                       if (likely(pos + i < mcqe_n))
+                               rte_prefetch0((void *)(cq + pos + i));
                __asm__ volatile (
                /* A.1 load mCQEs into a 128bit register. */
                "ld1 {v16.16b - v17.16b}, [%[mcq]] \n\t"