mlxsw: spectrum: Add mlxsw_sp.mac_mask
The Spectrum hardware demands that all router interfaces in the system have the same first 38 resp. 36 bits of MAC address: the former limit holds on Spectrum, the latter on Spectrum-2. Add a field that refers to the required prefix mask and initialize in mlxsw_sp1_init() and mlxsw_sp2_init(). Signed-off-by: NPetr Machata <petrm@mellanox.com> Acked-by: NJiri Pirko <jiri@mellanox.com> Reviewed-by: NIdo Schimmel <idosch@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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