[PATCH] net/mlx5: fix counting consumed Tx descriptors
From: Yongseok Koh <hidden>
Date: 2017-07-25 16:42:33
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted>
Acked-by: Nelio Laranjeiro <redacted>
---
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 95e96baa2..0a65502fb 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 |
--
2.11.0