From: Mark Zhang <markz@xxxxxxxxxxxx>
Add support for ib callbacks counter_bind_qp() and counter_unbind_qp().
Signed-off-by: Mark Zhang <markz@xxxxxxxxxxxx>
Reviewed-by: Majd Dibbiny <majd@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/main.c | 55 +++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 95823634821c..2120975245ca 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -5394,6 +5394,59 @@ static int mlx5_ib_get_hw_stats(struct ib_device *ibdev,
return num_counters;
}
+static int mlx5_ib_counter_bind_qp(struct rdma_counter *counter,
+ struct ib_qp *qp)
+{
+ struct mlx5_ib_dev *dev = to_mdev(qp->device);
+ u16 cnt_set_id = 0;
+ int err;
+
+ if (counter->id == 0) {
+ err = mlx5_cmd_alloc_q_counter(dev->mdev,
+ &cnt_set_id,
+ MLX5_SHARED_RESOURCE_UID);
+ if (err)
+ return err;
+ counter->id = cnt_set_id;
+ }
+
+ err = mlx5_ib_qp_set_counter(qp, counter);
+ if (err)
+ goto fail_set_counter;
+
+ return 0;
+
+fail_set_counter:
+ if (cnt_set_id != 0) {
+ mlx5_core_dealloc_q_counter(dev->mdev, cnt_set_id);
+ counter->id = 0;
+ }
+
+ return err;
+}
+
+static int mlx5_ib_counter_unbind_qp(struct ib_qp *qp, bool force)
+{
+ struct mlx5_ib_dev *dev = to_mdev(qp->device);
+ struct rdma_counter *counter = qp->counter;
+ int err;
+
+ err = mlx5_ib_qp_set_counter(qp, NULL);
+ if (err && !force)
+ return err;
+
+ /*
+ * Deallocate the counter if this is the last QP bound on it;
+ * If @force is set then we still deallocate the q counter
+ * no matter if there's any error in previous. used for cases
+ * like qp destroy.
+ */
+ if (atomic_read(&counter->usecnt) == 1)
+ return mlx5_core_dealloc_q_counter(dev->mdev, counter->id);
+
+ return 0;
+}
+
static int mlx5_ib_rn_get_params(struct ib_device *device, u8 port_num,
enum rdma_netdev_t type,
struct rdma_netdev_alloc_params *params)
@@ -6272,6 +6325,8 @@ static void mlx5_ib_stage_odp_cleanup(struct mlx5_ib_dev *dev)
static const struct ib_device_ops mlx5_ib_dev_hw_stats_ops = {
.alloc_hw_stats = mlx5_ib_alloc_hw_stats,
.get_hw_stats = mlx5_ib_get_hw_stats,
+ .counter_bind_qp = mlx5_ib_counter_bind_qp,
+ .counter_unbind_qp = mlx5_ib_counter_unbind_qp,
};
int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev)
--
2.20.1
