net/mlx4_core: Respond to operation request by firmware

This commit adds new firmware command and new firmware event.  The firmware
raises the MLX4_EVENT_TYPE_OP_REQUIRED event in order to signal the driver it
needs to perform an administrative operation throughout the MLX4_CMD_GET_OP_REQ
command. At the moment the supported operation is adding/removing multicast
entries which are used by the firmware for handling NCSI traffic in B0
steering mode.

Also, had to swap the order of mlx4_init_mcg_table() and
mlx4_init_eq_table() to make sure that driver will get events only after
resources are initialized to handle it.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 52c23a8..6aebdfe 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -207,6 +207,7 @@
 	MLX4_EVENT_TYPE_CMD		   = 0x0a,
 	MLX4_EVENT_TYPE_VEP_UPDATE	   = 0x19,
 	MLX4_EVENT_TYPE_COMM_CHANNEL	   = 0x18,
+	MLX4_EVENT_TYPE_OP_REQUIRED	   = 0x1a,
 	MLX4_EVENT_TYPE_FATAL_WARNING	   = 0x1b,
 	MLX4_EVENT_TYPE_FLR_EVENT	   = 0x1c,
 	MLX4_EVENT_TYPE_PORT_MNG_CHG_EVENT = 0x1d,