• Andreas Gruenbacher's avatar
    drbd: Introduce protocol version 100 headers · 0c8e36d9
    Andreas Gruenbacher authored
    The 8 byte header finally becomes too small. With the protocol 100 header we
    have 16 bit for the volume number, proper 32 bit for the data length, and
    32 bit for further extensions in the future.
    
    Previous versions of drbd are using version 80 headers for all packets
    short enough for protocol 80.  They support both header versions in
    worker context, but only version 80 headers in asynchronous context.
    For backwards compatibility, continue to use version 80 headers for
    short packets before protocol version 100.
    
    From protocol version 100 on, use the same header version for all
    packets.
    Signed-off-by: default avatarPhilipp Reisner <philipp.reisner@linbit.com>
    Signed-off-by: default avatarLars Ellenberg <lars.ellenberg@linbit.com>
    0c8e36d9
drbd_limits.h 4.97 KB