RDMA/rxe: Enable RDMA FLUSH capability for rxe device

Now we are ready to enable RDMA FLUSH capability for RXE.
It can support Global Visibility and Persistence placement types.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Zhu Yanjun <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: zhijianli88

drivers/infiniband/sw/rxe/rxe_param.h

@@ -51,6 +51,8 @@ enum rxe_device_param {
 					| IB_DEVICE_SRQ_RESIZE
 					| IB_DEVICE_MEM_MGT_EXTENSIONS
 					| IB_DEVICE_MEM_WINDOW
+					| IB_DEVICE_FLUSH_GLOBAL
+					| IB_DEVICE_FLUSH_PERSISTENT
 #ifdef CONFIG_64BIT
 					| IB_DEVICE_MEM_WINDOW_TYPE_2B
 					| IB_DEVICE_ATOMIC_WRITE,