IB/mlx5: Implement the ODP capability query verb
The patch adds infrastructure to query ODP capabilities in the mlx5
driver. The code will read the capabilities from the device, and
enable only those capabilities that both the driver and the device
supports. At this point ODP is not supported, so no capability is
copied from the device, but the patch exposes the global ODP device
capability bit.
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 14a0311..cc50fce 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -390,6 +390,9 @@
struct mlx5_mr_cache cache;
struct timer_list delay_timer;
int fill_delay;
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ struct ib_odp_caps odp_caps;
+#endif
};
static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
@@ -559,6 +562,15 @@
int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask,
struct ib_mr_status *mr_status);
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev);
+#else
+static inline int mlx5_ib_internal_query_odp_caps(struct mlx5_ib_dev *dev)
+{
+ return 0;
+}
+#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */
+
static inline void init_query_mad(struct ib_smp *mad)
{
mad->base_version = 1;