[dpdk-dev] [PATCH v2] net/mlx4: fix flow creation before start

[Ferruh Yigit]

On 7/27/2017 11:27 AM, Matan Azrad wrote:
> The corrupted code causes segmentation fault when user creates
> flow with drop action before device starting.
> 
> For example, failsafe PMD recreates all the flows before calling
> dev_start in plug-in sequence and mlx4 allocated its flow drop
> queue in dev_start.
> Hence, when failsafe created flow with drop action after plug-in
> event, mlx4 tried to dereference flow drop queue which was uninitialized.
> 
> The fix added check to the drop qp accesibale and conditioned the
> ibv_create_flow calling on device starting.
> 
> Fixes: 642fe56a1ba5 ("net/mlx4: use a single drop queue for all drop flows")
> Fixes: 46d5736a7049 ("net/mlx4: support basic flow items and actions")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Matan Azrad <matan at mellanox.com>
> Acked-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>

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