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* [dpdk-dev] [PATCH] net/mlx5: fix counting consumed Tx descriptors
@ 2017-07-25 16:42 Yongseok Koh
  2017-07-31 16:19 ` Ferruh Yigit
  0 siblings, 1 reply; 2+ messages in thread
From: Yongseok Koh @ 2017-07-25 16:42 UTC (permalink / raw)
  To: adrien.mazarguil, nelio.laranjeiro; +Cc: dev, Yongseok Koh

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 <yskoh@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
---
 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

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [dpdk-dev] [PATCH] net/mlx5: fix counting consumed Tx descriptors
  2017-07-25 16:42 [dpdk-dev] [PATCH] net/mlx5: fix counting consumed Tx descriptors Yongseok Koh
@ 2017-07-31 16:19 ` Ferruh Yigit
  0 siblings, 0 replies; 2+ messages in thread
From: Ferruh Yigit @ 2017-07-31 16:19 UTC (permalink / raw)
  To: Yongseok Koh, adrien.mazarguil, nelio.laranjeiro; +Cc: dev

On 7/25/2017 5:42 PM, Yongseok Koh wrote:
> 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 <yskoh@mellanox.com>
> Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>

Applied to dpdk-next-net/master, thanks.

^ permalink raw reply	[flat|nested] 2+ messages in thread

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