• Jesse Gross's avatar
    net offloading: Accept NETIF_F_HW_CSUM for all protocols. · 9497a051
    Jesse Gross authored
    We currently only have software fallback for one type of checksum: the
    TCP/UDP one's complement.  This means that a protocol that uses hardware
    offloading for a different type of checksum (FCoE, SCTP) must directly
    check the device's features and do the right thing ahead of time.  By
    the time we get to dev_can_checksum(), we're only deciding whether to
    apply the one algorithm in software or hardware.  NETIF_F_HW_CSUM has the
    same capabilities as the software version, so we should always use it if
    present.  The primary advantage of this is multiply tagged vlans can use
    hardware checksumming.
    Signed-off-by: default avatarJesse Gross <jesse@nicira.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    9497a051
dev.c 153 KB