• Maxim Mikityanskiy's avatar
    net/mlx5e: Block LRO if firmware asks for tunneled LRO · 26ab7b38
    Maxim Mikityanskiy authored
    This commit does a cleanup in LRO configuration.
    
    LRO is a parameter of an RQ, but its state is changed by modifying a TIR
    related to the RQ.
    
    The current status: LRO for tunneled packets is not supported in the
    driver, inner TIRs may enable LRO on creation, but LRO status of inner
    TIRs isn't changed in mlx5e_modify_tirs_lro(). This is inconsistent, but
    as long as the firmware doesn't declare support for tunneled LRO, it
    works, because the same RQs are shared between the inner and outer TIRs.
    
    This commit does two fixes:
    
    1. If the firmware has the tunneled LRO capability, LRO is blocked
    altogether, because it's not possible to block it for inner TIRs only,
    when the same RQs are shared between inner and outer TIRs, and the
    driver won't be able to handle tunneled LRO traffic.
    
    2. mlx5e_modify_tirs_lro() is patched to modify LRO state for all TIRs,
    including inner ones, because all TIRs related to an RQ should agree on
    their LRO state.
    
    Fixes: 7b3722fa ("net/mlx5e: Support RSS for GRE tunneled packets")
    Signed-off-by: default avatarMaxim Mikityanskiy <maximmi@nvidia.com>
    Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
    26ab7b38
mlx5_ifc.h 258 KB