mlxsw: spectrum_buffers: Add struct mlxsw_sp_hdroom
The port headroom handling is currently strewn across several modules and tricky to follow: MTU, DCB PFC, DCB ETS and ethtool pause all influence the settings, and then there is the completely separate initial configuraion in spectrum_buffers. A following patch will implement the dcbnl_setbuffer callback, which is going to further complicate the landscape. In order to simplify work with port buffers, the following patches are going to centralize all port-buffer handling in spectrum_buffers. As a first step, introduce a (currently empty) struct mlxsw_sp_hdroom that will keep the configuration parameters, and allocate and free it in appropriate places. Signed-off-by:Petr Machata <petrm@nvidia.com> Reviewed-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
Ido Schimmel <idosch@nvidia.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
045e42f3
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