diff --git a/sys/dev/mlx4/device.h b/sys/dev/mlx4/device.h
index 0af8fce5e634..ce934838253f 100644
--- a/sys/dev/mlx4/device.h
+++ b/sys/dev/mlx4/device.h
@@ -624,6 +624,7 @@ struct mlx4_caps {
 	u32			dmfs_high_rate_qpn_range;
 	u32			vf_caps;
 	struct mlx4_rate_limit_caps rl_caps;
+	bool			map_clock_to_user;
 };
 
 struct mlx4_buf_list {
diff --git a/sys/dev/mlx4/mlx4_core/fw.h b/sys/dev/mlx4/mlx4_core/fw.h
index c4c4883b4d06..48ba434e6078 100644
--- a/sys/dev/mlx4/mlx4_core/fw.h
+++ b/sys/dev/mlx4/mlx4_core/fw.h
@@ -129,6 +129,7 @@ struct mlx4_dev_cap {
 	u32 dmfs_high_rate_qpn_range;
 	struct mlx4_rate_limit_caps rl_caps;
 	struct mlx4_port_cap port_cap[MLX4_MAX_PORTS + 1];
+	bool map_clock_to_user;
 };
 
 struct mlx4_func_cap {
diff --git a/sys/dev/mlx4/mlx4_core/mlx4_fw.c b/sys/dev/mlx4/mlx4_core/mlx4_fw.c
index 0ac45e1297b9..68aa7e76c79d 100644
--- a/sys/dev/mlx4/mlx4_core/mlx4_fw.c
+++ b/sys/dev/mlx4/mlx4_core/mlx4_fw.c
@@ -820,6 +820,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 #define QUERY_DEV_CAP_MAD_DEMUX_OFFSET		0xb0
 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_BASE_OFFSET	0xa8
 #define QUERY_DEV_CAP_DMFS_HIGH_RATE_QPN_RANGE_OFFSET	0xac
+#define QUERY_DEV_CAP_MAP_CLOCK_TO_USER 0xc1
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET	0xcc
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET	0xd0
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET	0xd2
@@ -838,6 +839,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 
 	if (mlx4_is_mfunc(dev))
 		disable_unsupported_roce_caps(outbox);
+	MLX4_GET(field, outbox, QUERY_DEV_CAP_MAP_CLOCK_TO_USER);
+	dev_cap->map_clock_to_user = field & 0x80;
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
 	dev_cap->reserved_qps = 1 << (field & 0xf);
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
diff --git a/sys/dev/mlx4/mlx4_core/mlx4_main.c b/sys/dev/mlx4/mlx4_core/mlx4_main.c
index 48cc2fc7d3f6..ca63d1d12ba6 100644
--- a/sys/dev/mlx4/mlx4_core/mlx4_main.c
+++ b/sys/dev/mlx4/mlx4_core/mlx4_main.c
@@ -386,6 +386,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 		}
 	}
 
+	dev->caps.map_clock_to_user  = dev_cap->map_clock_to_user;
 	dev->caps.uar_page_size	     = PAGE_SIZE;
 	dev->caps.num_uars	     = dev_cap->uar_size / PAGE_SIZE;
 	dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
@@ -1872,6 +1873,11 @@ int mlx4_get_internal_clock_params(struct mlx4_dev *dev,
 	if (mlx4_is_slave(dev))
 		return -ENOTSUPP;
 
+	if (!dev->caps.map_clock_to_user) {
+		mlx4_dbg(dev, "Map clock to user is not supported.\n");
+		return -EOPNOTSUPP;
+	}
+
 	if (!params)
 		return -EINVAL;
 
diff --git a/sys/dev/mlx4/mlx4_ib/mlx4_ib_main.c b/sys/dev/mlx4/mlx4_ib/mlx4_ib_main.c
index ef23f182bc28..e992400820c0 100644
--- a/sys/dev/mlx4/mlx4_ib/mlx4_ib_main.c
+++ b/sys/dev/mlx4/mlx4_ib/mlx4_ib_main.c
@@ -560,12 +560,9 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 	props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
 	props->timestamp_mask = 0xFFFFFFFFFFFFULL;
 
-	if (!mlx4_is_slave(dev->dev))
-		err = mlx4_get_internal_clock_params(dev->dev, &clock_params);
-
 	if (uhw->outlen >= resp.response_length + sizeof(resp.hca_core_clock_offset)) {
 		resp.response_length += sizeof(resp.hca_core_clock_offset);
-		if (!err && !mlx4_is_slave(dev->dev)) {
+		if (!mlx4_get_internal_clock_params(dev->dev, &clock_params)) {
 			resp.comp_mask |= QUERY_DEVICE_RESP_MASK_TIMESTAMP;
 			resp.hca_core_clock_offset = clock_params.offset % PAGE_SIZE;
 		}