Commits on Apr 16, 2019

1. teamd: lacp: update port state according to partner's sync bit …

   Backport of
   jpirko/libteam@54f137c
   
   According to 6.4.15 of IEEE 802.1AX-2014, Figure 6-22, the state that the
   port is selected moves MUX state from DETACHED to ATTACHED.
   
   But ATTACHED state does not mean that the port can send and receive user
   frames. COLLECTING_DISTRIBUTION state is the state that the port can send
   and receive user frames. To move MUX state from ATTACHED to
   COLLECTING_DISTRIBUTION, the partner state should be sync as well as the
   port selected.
   
   In function lacp_port_actor_update(), only INFO_STATE_SYNCHRONIZATION
   should be set to the actor.state when the port is selected.
   INFO_STATE_COLLECTING and INFO_STATE_DISTRIBUTING should be set to false
   with ATTACHED mode and set to true when INFO_STATE_SYNCHRONIZATION of
   partner.state is set.
   
   In function lacp_port_should_be_{enabled, disabled}(), we also need to
   check the INFO_STATE_SYNCHRONIZATION bit of partner.state.
   
   Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
   Signed-off-by: Jiri Pirko <jiri@mellanox.com>

   

   pavel-shirshov committed Apr 16, 2019
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