• Or Gerlitz's avatar
    IB: Change CQE "csum_ok" field to a bit flag · d927d505
    Or Gerlitz authored
    Use a bit in wc_flags rather then a whole integer to hold the
    "checksum OK" flag.  By itself, this change doesn't reduce the size of
    struct ib_wc on 64bit machines -- it stays on 56 bytes because of
    padding.  However, it will allow to add more fields in the future
    without enlarging the struct.  Also, it will let us have a unified
    approach with future libibverbs checksum offload reporting, because a
    bit flag doesn't break the library ABI.
    
    This patch was suggested during conversation with Liran Liss
    <liranl@mellanox.com>.
    Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
    Reviewed-by: default avatarSean Hefty <sean.hefty@intel.com>
    Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
    d927d505
ipoib_ib.c 27.3 KB