• Mahesh Bandewar's avatar
    bonding: Implement user key part of port_key in an AD system. · d22a5fc0
    Mahesh Bandewar authored
    The port key has three components - user-key, speed-part, and duplex-part.
    The LSBit is for the duplex-part, next 5 bits are for the speed while the
    remaining 10 bits are the user defined key bits. Get these 10 bits
    from the user-space (through the SysFs interface) and use it to form the
    admin port-key. Allowed range for the user-key is 0 - 1023 (10 bits). If
    it is not provided then use zero for the user-key-bits (default).
    
    It can set using following example code -
    
       # modprobe bonding mode=4
       # usr_port_key=$(( RANDOM & 0x3FF ))
       # echo $usr_port_key > /sys/class/net/bond0/bonding/ad_user_port_key
       # echo +eth1 > /sys/class/net/bond0/bonding/slaves
       ...
       # ip link set bond0 up
    Signed-off-by: default avatarMahesh Bandewar <maheshb@google.com>
    Reviewed-by: default avatarNikolay Aleksandrov <nikolay@redhat.com>
    [jt: * fixed up style issues reported by checkpatch
         * fixed up context from change in ad_actor_sys_prio patch]
    Signed-off-by: default avatarJonathan Toppins <jtoppins@cumulusnetworks.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    d22a5fc0
bond_sysfs.c 22.8 KB