From 85245b8f04441b44f790c1d37a9b4d472b04ea79 Mon Sep 17 00:00:00 2001 From: Yongseok Koh Date: Tue, 25 Jul 2017 09:42:16 -0700 Subject: [PATCH] net/mlx5: fix counting consumed Tx descriptors When advancing Tx ring index (txq->wqe_ci) in txq_scatter_v(), the title descriptor of multi-packet send isn't taken into account if it doesn't cross 64B boundary. Fixes: 6cb559d67b83 ("net/mlx5: add vectorized Rx/Tx burst for x86") Signed-off-by: Yongseok Koh Acked-by: Nelio Laranjeiro --- drivers/net/mlx5/mlx5_rxtx_vec_sse.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c index 95e96baa23..0a65502fb9 100644 --- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c +++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c @@ -288,8 +288,7 @@ txq_scatter_v(struct txq *txq, struct rte_mbuf **pkts, uint16_t pkts_n) (*txq->elts)[elts_head++ & elts_m] = buf; buf = buf->next; } while (--segs_n); - if (ds % nb_dword_per_wqebb) - ++wqe_ci; + ++wqe_ci; /* Fill CTRL in the header. */ ctrl = _mm_set_epi32(0, 0, txq->qp_num_8s | ds, MLX5_OPC_MOD_MPW << 24 | -- 2.20.1