[dpdk-stable] [PATCH] net/mlx5: fix ROCE LAG bond device probing

[Thomas Monjalon]

21/07/2021 10:31, Viacheslav Ovsiienko:
> The ROCE LAG bond device requires neither E-Switch nor SR-IOV
> configurations. It means the ROCE LAG bond device might be
> presented as a single port Infiniband device.
> 
> The mlx5 PMD wrongly recognized standalone ROCE LAG bond device
> as E-Switch configuration, this triggered the calls of E-Switch
> ports related API and the latter failed (over the new OFED kernel
> driver, starting since 5.4.1), causing the overall device probe
> failure.
> 
> If there is a single port Infiniband bond device found the
> E-Switch related flags must be cleared indicating standalone
> configuration.
> 
> Also, it is not true anymore the bond device can exist
> over E-Switch configurations only (as it was claimed for VF LAG
> bond devices). The related checks are not relevant anymore
> and removed.
> 
> Fixes: 790164ce1d2d ("net/mlx5: check kernel support for VF LAG bonding")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> Acked-by: Matan Azrad <matan at nvidia.com>

Applied, thanks