Re: [PATCH net 1/6] net/mlx5: Fix multiport device check over light SFs

[Jacob Keller]

On 2/12/2026 2:32 AM, Tariq Toukan wrote:
> From: Shay Drory <shayd@xxxxxxxxxx>
>
> Driver is using num_vhca_ports capability to distinguish between
> multiport master device and multiport slave device. num_vhca_ports is a
> capability the driver sets according to the MAX num_vhca_ports
> capability reported by FW. On the other hand, light SFs doesn't set the
> above capbility.
>
> This leads to wrong results whenever light SFs is checking whether he is
> a multiport master or slave.
>
> Therefore, use the MAX capability to distinguish between master and
> slave devices.

So we were previously checking the number of VHCA ports, but since SFs 
set this to 0, they would always be ported as mp_slave, even though they 
should be mp_master.

Makes sense.

Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>