IB/mlx5: Support set qp counter
Support bind a qp with counter. If counter is null then bind the qp to the
default counter. Different QP state has different operation:
- RESET: Set the counter field so that it will take effective during
RST2INIT change;
- RTS: Issue an RTS2RTS change to update the QP counter;
- Other: Set the counter field and mark the counter_pending flag, when QP
is moved to RTS state and this flag is set, then issue an RTS2RTS
modification to update the counter.
Signed-off-by: Mark Zhang <markz@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@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/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 7373e9d..c482f19 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -439,6 +439,10 @@ struct mlx5_ib_qp {
u32 flags_en;
/* storage for qp sub type when core qp type is IB_QPT_DRIVER */
enum ib_qp_type qp_sub_type;
+ /* A flag to indicate if there's a new counter is configured
+ * but not take effective
+ */
+ u32 counter_pending;
};
struct mlx5_ib_cq_buf {
@@ -1468,4 +1472,6 @@ void mlx5_ib_put_xlt_emergency_page(void);
int bfregn_to_uar_index(struct mlx5_ib_dev *dev,
struct mlx5_bfreg_info *bfregi, u32 bfregn,
bool dyn_bfreg);
+
+int mlx5_ib_qp_set_counter(struct ib_qp *qp, struct rdma_counter *counter);
#endif /* MLX5_IB_H */