mlx4_core: Add IB port-state machine and port mgmt event propagation

For an IB port, a slave should not show port active until that slave
has a valid alias-guid (provided by the subnet manager).  Therefore
the port-up event should be passed to a slave only after both the port
is up, and the slave's alias-guid has been set.

Also, provide the infrastructure for propagating port-management
events (client-reregister, etc) to slaves.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 7d27c3158d0..23f74759f40 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -452,6 +452,7 @@ struct mlx4_slave_state {
         /*initialized via the kzalloc*/
         u8 is_slave_going_down;
         u32 cookie;
+        enum slave_port_state port_state[MLX4_MAX_PORTS + 1];
 };
 
 struct slave_list {