mlx5: remove support for ib_get_vector_affinity

Devices that does not use managed affinity can not export a vector
affinity as the consumer relies on having a static mapping it can map to
upper layer affinity (e.g. sw queues). If the driver allows the user to
set the device irq affinity, then the affinitization of a long term
existing entites is not relevant.

For example, nvme-rdma controllers queue-irq affinitization is determined
at init time so if the irq affinity changes over time, we are no longer
aligned.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index e9c428071df3140685071f458abf72512381ae55..d4f1cac067cb5d541c31d2482121b2e766f0c5c9 100644 (file)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -5332,14 +5332,6 @@ static void init_delay_drop(struct mlx5_ib_dev *dev)
                mlx5_ib_warn(dev, "Failed to init delay drop debugfs\n");
 }
 
-static const struct cpumask *
-mlx5_ib_get_vector_affinity(struct ib_device *ibdev, int comp_vector)
-{
-       struct mlx5_ib_dev *dev = to_mdev(ibdev);
-
-       return mlx5_get_vector_affinity_hint(dev->mdev, comp_vector);
-}
-
 /* The mlx5_ib_multiport_mutex should be held when calling this function */
 static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
                                      struct mlx5_ib_multiport_info *mpi)
@@ -5845,7 +5837,6 @@ int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev)
        dev->ib_dev.map_mr_sg           = mlx5_ib_map_mr_sg;
        dev->ib_dev.check_mr_status     = mlx5_ib_check_mr_status;
        dev->ib_dev.get_dev_fw_str      = get_dev_fw_str;
-       dev->ib_dev.get_vector_affinity = mlx5_ib_get_vector_affinity;
        if (MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads) &&
            IS_ENABLED(CONFIG_MLX5_CORE_IPOIB))
                dev->ib_dev.rdma_netdev_get_params = mlx5_ib_rn_get_params;

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index aa5963b5d38e192d4e4bb455938bc6200a8ee48e..6b6b3d9dcc003ded6afd06de64d26471e1641a47 100644 (file)
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1306,10 +1306,4 @@ enum {
        MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
 };
 
-static inline const struct cpumask *
-mlx5_get_vector_affinity_hint(struct mlx5_core_dev *dev, int vector)
-{
-       return dev->priv.irq_info[vector].mask;
-}
-
 #endif /* MLX5_DRIVER_H */