From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Elad Persiko <eladpe@mellanox.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] net/mlx5: fix wrong use of vector instruction
Date: Wed, 2 Nov 2016 16:56:03 +0100 [thread overview]
Message-ID: <20161102155602.GF5733@6wind.com> (raw)
In-Reply-To: <1477988007-26141-1-git-send-email-eladpe@mellanox.com>
On Tue, Nov 01, 2016 at 08:13:27AM +0000, Elad Persiko wrote:
> Constraint alignment was not respected in Tx.
>
> Fixes: 1d88ba171942 ("net/mlx5: refactor Tx data path")
>
> Signed-off-by: Elad Persiko <eladpe@mellanox.com>
> ---
> drivers/net/mlx5/mlx5_rxtx.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
> index 21164ba..ba8e202 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.c
> +++ b/drivers/net/mlx5/mlx5_rxtx.c
> @@ -309,7 +309,7 @@ mlx5_tx_dbrec(struct txq *txq)
> *txq->qp_db = htonl(txq->wqe_ci);
> /* Ensure ordering between DB record and BF copy. */
> rte_wmb();
> - rte_mov16(dst, (uint8_t *)data);
> + memcpy(dst, (uint8_t *)data, 16);
> txq->bf_offset ^= (1 << txq->bf_buf_size);
> }
>
> @@ -449,7 +449,7 @@ mlx5_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
> wqe->eseg.mss = 0;
> wqe->eseg.rsvd2 = 0;
> /* Start by copying the Ethernet Header. */
> - rte_mov16((uint8_t *)raw, (uint8_t *)addr);
> + memcpy((uint8_t *)raw, ((uint8_t *)addr), 16);
> length -= MLX5_WQE_DWORD_SIZE;
> addr += MLX5_WQE_DWORD_SIZE;
> /* Replace the Ethernet type by the VLAN if necessary. */
> --
> 1.8.3.1
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
--
Adrien Mazarguil
6WIND
next prev parent reply other threads:[~2016-11-02 15:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-01 8:13 Elad Persiko
2016-11-01 14:24 ` Ferruh Yigit
2016-11-02 15:56 ` Adrien Mazarguil [this message]
2016-11-07 17:16 ` Thomas Monjalon
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