RDMA/mlx5: Fix remote gid value in query QP

Remote gid is not copied to the right address. Fix it by using
rdma_ah_set_dgid_raw to copy the remote gid value from the QP context on
query QP.

Fixes: 70bd7fb87625 ("RDMA/mlx5: Remove manually crafted QP context the query call")
Link: https://lore.kernel.org/r/20200618112507.3453496-3-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 1e567fe..264e6d2 100644 (file)
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -4390,8 +4390,7 @@ static void to_rdma_ah_attr(struct mlx5_ib_dev *ibdev,
                                MLX5_GET(ads, path, src_addr_index),
                                MLX5_GET(ads, path, hop_limit),
                                MLX5_GET(ads, path, tclass));
-               memcpy(ah_attr, MLX5_ADDR_OF(ads, path, rgid_rip),
-                      MLX5_FLD_SZ_BYTES(ads, rgid_rip));
+               rdma_ah_set_dgid_raw(ah_attr, MLX5_ADDR_OF(ads, path, rgid_rip));
        }
 }