• Alexander Duyck's avatar
    ixgbe: enable HW RSC for 82599 · f8212f97
    Alexander Duyck authored
    This patch enables hardware receive side coalescing for 82599 hardware.
    82599 can merge multiple frames from the same TCP/IP flow into a single
    structure that can span one ore more descriptors.  The accumulated data is
    arranged similar to how jumbo frames are arranged with the exception that
    other packets can be interlaced inbetween.  To overcome this issue a next
    pointer is included in the written back descriptor which indicates the next
    descriptor in the writeback sequence.
    
    This feature sets the NETIF_F_LRO flag and clearing it via the ethtool set
    flags operation will also disable hardware RSC.
    Signed-off-by: default avatarAlexander Duyck <alexander.h.duyck@intel.com>
    Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    f8212f97
ixgbe.h 11.7 KB