[dpdk-dev] [PATCH] net/mlx5: fix device reference in secondary process
Nélio Laranjeiro
nelio.laranjeiro at 6wind.com
Wed May 2 08:53:40 CEST 2018
On Tue, May 01, 2018 at 11:13:20PM -0700, Yongseok Koh wrote:
> rte_eth_devices[] is not shared between primary and secondary process, but
> a static array to each process. The backward pointer of device (priv->dev)
> must be reset when a secondary process attaches to a device.
>
> Fixes: f8b9a3bad467 ("net/mlx5: install a socket to exchange a file descriptor")
> Cc: stable at dpdk.org
>
> Signed-off-by: Yongseok Koh <yskoh at mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro at 6wind.com>
> ---
> drivers/net/mlx5/mlx5.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
> index 8f983061a..f606e3dd4 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -799,6 +799,12 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
> }
> eth_dev->device = &pci_dev->device;
> eth_dev->dev_ops = &mlx5_dev_sec_ops;
> + /*
> + * rte_eth_devices[] is not shared but static to each
> + * process. The backward pointer should be reset.
> + */
> + priv = eth_dev->data->dev_private;
> + priv->dev = eth_dev;
> err = mlx5_uar_init_secondary(eth_dev);
> if (err)
> goto error;
> --
> 2.11.0
>
--
Nélio Laranjeiro
6WIND
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