RDMA/hns: Bugfix for data type of dip_idx

dip_idx is associated with qp_num whose data type is u32. However, dip_idx
is incorrectly defined as u8 data in the hns_roce_dip struct, which leads
to data truncation during value assignment.

Fixes: f91696f ("RDMA/hns: Support congestion control type selection according to the FW")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Junxian Huang <[email protected]>
Signed-off-by: Wenpeng Liang <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: Junxian Huang

drivers/infiniband/hw/hns/hns_roce_hw_v2.h

@@ -1441,7 +1441,7 @@ struct hns_roce_v2_priv {
 
 struct hns_roce_dip {
 	u8 dgid[GID_LEN_V2];
-	u8 dip_idx;
+	u32 dip_idx;
 	struct list_head node;	/* all dips are on a list */
 };