• Bert Kenward's avatar
    sfc: Firmware-Assisted TSO version 2 · e9117e50
    Bert Kenward authored
    Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task
     of TCP segmentation to the firmware, such that we now just pass a single
     super-packet to the NIC. This means TSO has a great deal in common with a
     normal DMA transmit, apart from adding a couple of option descriptors.
     NIC-specific checks have been moved off the fast path and in to
     initialisation where possible.
    
    This also moves FATSOv1/SWTSO to a new file (tx_tso.c).  The end of transmit
     and some error handling is now outside TSO, since it is common with other
     code.
    Signed-off-by: default avatarEdward Cree <ecree@solarflare.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    e9117e50
nic.h 26.5 KB