• Michael Chan's avatar
    bnxt_en: Add TC to hardware QoS queue mapping logic. · 2e8ef77e
    Michael Chan authored
    The current driver maps MQPRIO traffic classes directly 1:1 to the
    internal hardware queues (TC0 maps to hardware queue 0, etc).  This
    direct mapping requires the internal hardware queues to be reconfigured
    from lossless to lossy and vice versa when necessary.  This
    involves reconfiguring internal buffer thresholds which is
    disruptive and not always reliable.
    
    Implement a new scheme to map TCs to internal hardware queues by
    matching up their PFC requirements.  This will eliminate the need
    to reconfigure a hardware queue internal buffers at run time.  After
    remapping, the NIC is closed and opened for the new TC to hardware
    queues to take effect.
    
    This patch only adds the basic mapping logic.
    Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    2e8ef77e
bnxt.h 43.7 KB