• Rahul Lakkireddy's avatar
    cxgb4: add FLOWC based QoS offload · 0e395b3c
    Rahul Lakkireddy authored
    Rework SCHED API to allow offloading TC-MQPRIO QoS configuration.
    The existing QUEUE based rate limiting throttles all queues sharing
    a traffic class, to the specified max rate limit value. So, if
    multiple queues share a traffic class, then all the queues get
    the aggregate specified max rate limit.
    
    So, introduce the new FLOWC based rate limiting, where multiple
    queues can share a traffic class with each queue getting its own
    individual specified max rate limit.
    
    For example, if 2 queues are bound to class 0, which is rate limited
    to 1 Gbps, then 2 queues using QUEUE based rate limiting, get the
    aggregate output of 1 Gbps only. In FLOWC based rate limiting, each
    queue gets its own output of max 1 Gbps each; i.e. 2 queues * 1 Gbps
    rate limit = 2 Gbps.
    Signed-off-by: default avatarRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    0e395b3c
cxgb4.h 69.8 KB