• Junfeng Guo's avatar
    ice: add profile conflict check for AVF FDIR · 29486b6d
    Junfeng Guo authored
    Add profile conflict check while adding some FDIR rules to avoid
    unexpected flow behavior, rules may have conflict including:
            IPv4 <---> {IPv4_UDP, IPv4_TCP, IPv4_SCTP}
            IPv6 <---> {IPv6_UDP, IPv6_TCP, IPv6_SCTP}
    
    For example, when we create an FDIR rule for IPv4, this rule will work
    on packets including IPv4, IPv4_UDP, IPv4_TCP and IPv4_SCTP. But if we
    then create an FDIR rule for IPv4_UDP and then destroy it, the first
    FDIR rule for IPv4 cannot work on pkt IPv4_UDP then.
    
    To prevent this unexpected behavior, we add restriction in software
    when creating FDIR rules by adding necessary profile conflict check.
    
    Fixes: 1f7ea1cd ("ice: Enable FDIR Configure for AVF")
    Signed-off-by: default avatarJunfeng Guo <junfeng.guo@intel.com>
    Tested-by: default avatarRafal Romanowski <rafal.romanowski@intel.com>
    Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
    29486b6d
ice_virtchnl_fdir.c 54.3 KB