From: Sagi Grimberg <sagi@grimberg.me>
Date: Thu, 1 Nov 2018 09:13:12 -0700
Subject: mlx5: remove support for ib_get_vector_affinity
Patch-mainline: v5.0-rc1
Git-commit: 9afc97c29b032af9a4112c2f4a02d5313b4dc71f
References: bsc#1174748

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>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 drivers/infiniband/hw/mlx5/main.c |    9 ---------
 include/linux/mlx5/driver.h       |    6 ------
 2 files changed, 15 deletions(-)

--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -5325,14 +5325,6 @@ static void init_delay_drop(struct mlx5_
 		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)
@@ -5838,7 +5830,6 @@ int mlx5_ib_stage_caps_init(struct mlx5_
 	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;
--- 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 */