RDMA/core: Align write and ioctl checks of QP types

The ioctl flow checks that the user provides only a supported list of QP
types, while write flow didn't do it and relied on the driver to check
it. Align those flows to fail as early as possible.

Link: https://lore.kernel.org/r/20200926102450.2966017-8-leon@kernel.orgReviewed-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/core/uverbs_cmd.c

@@ -1256,8 +1256,21 @@ static int create_qp(struct uverbs_attr_bundle *attrs,
 	bool has_sq = true;
 	struct ib_device *ib_dev;
 
-	if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW))
+	switch (cmd->qp_type) {
+	case IB_QPT_RAW_PACKET:
+		if (!capable(CAP_NET_RAW))
 			return -EPERM;
+		break;
+	case IB_QPT_RC:
+	case IB_QPT_UC:
+	case IB_QPT_UD:
+	case IB_QPT_XRC_INI:
+	case IB_QPT_XRC_TGT:
+	case IB_QPT_DRIVER:
+		break;
+	default:
+		return -EINVAL;
+	}
 
 	obj = (struct ib_uqp_object *)uobj_alloc(UVERBS_OBJECT_QP, attrs,
 						 &ib_dev);