IB/rdmavt: Add support for query_port, modify_port and get_port_immutable

rvt_query_port calls into the driver through a call back function
query_port_state to populate the rest of ib_port_attr elements.
rvt_modify_port calls into the driver if needed through a call back
function shut_down_port()

Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

include/rdma/rdma_vt.h

@@ -200,6 +200,8 @@ struct rvt_driver_params {
 	int psn_mask;
 	int psn_shift;
 	int psn_modify_mask;
+	u32 core_cap_flags;
+	u32 max_mad_size;
 };
 
 /* Protection domain */
@@ -250,6 +252,10 @@ struct rvt_driver_provided {
 	int (*mtu_to_path_mtu)(u32 mtu);
 	int (*get_guid_be)(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
 			   int guid_index, __be64 *guid);
+	int (*query_port_state)(struct rvt_dev_info *rdi, u8 port_num,
+				struct ib_port_attr *props);
+	int (*shut_down_port)(struct rvt_dev_info *rdi, u8 port_num);
+	void (*cap_mask_chg)(struct rvt_dev_info *rdi, u8 port_num);
 
 	/*--------------------*/
 	/* Optional functions */