IB/hfi1: fix pstateinfo from returning improperly byteswapped value

Byteswap link_width_downgrade_*_active values before sending on the wire.  In
addition properly define the Port State Info structure.
Reviewed-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: NChristian Gomez <christian.gomez@intel.com>
Signed-off-by: NRimmer, Todd <todd.rimmer@intel.com>
Signed-off-by: NIra Weiny <ira.weiny@intel.com>
Acked-by: NMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>

drivers/staging/rdma/hfi1/mad.c

@@ -1717,9 +1717,9 @@ static int __subn_get_opa_psi(struct opa_smp *smp, u32 am, u8 *data,
 	psi->port_states.portphysstate_portstate =
 		(hfi1_ibphys_portstate(ppd) << 4) | (lstate & 0xf);
 	psi->link_width_downgrade_tx_active =
-	  ppd->link_width_downgrade_tx_active;
+		cpu_to_be16(ppd->link_width_downgrade_tx_active);
 	psi->link_width_downgrade_rx_active =
-	  ppd->link_width_downgrade_rx_active;
+		cpu_to_be16(ppd->link_width_downgrade_rx_active);
 	if (resp_len)
 		*resp_len += sizeof(struct opa_port_state_info);
 

include/rdma/opa_port_info.h

@@ -294,8 +294,8 @@ struct opa_port_states {
 
 struct opa_port_state_info {
 	struct opa_port_states port_states;
-	u16 link_width_downgrade_tx_active;
-	u16 link_width_downgrade_rx_active;
+	__be16 link_width_downgrade_tx_active;
+	__be16 link_width_downgrade_rx_active;
 };
 
 struct opa_port_info {