From: Mark Bloch <markb@mellanox.com>
Date: Mon, 1 Jan 2018 13:07:03 +0200
Subject: IB/mlx5: Move locks initialization to the corresponding stage
Patch-mainline: v4.16-rc1
Git-commit: 3cc297db970762024109f75ce289078f8479a2f8
References: bsc#1103991 FATE#326007
Unconditional locks/list and ODP srcu initialization should be done in
the INIT stage. Remove those from the CAPS stage and move them to the
proper stage.
Signed-off-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/mlx5/main.c | 26 +++++++++++++++-----------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 --
drivers/infiniband/hw/mlx5/odp.c | 9 ---------
3 files changed, 15 insertions(+), 22 deletions(-)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -4028,6 +4028,9 @@ mlx5_ib_get_vector_affinity(struct ib_de
static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
{
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ cleanup_srcu_struct(&dev->mr_srcu);
+#endif
kfree(dev->port);
}
@@ -4065,6 +4068,17 @@ static int mlx5_ib_stage_init_init(struc
dev->mdev->priv.eq_table.num_comp_vectors;
dev->ib_dev.dev.parent = &mdev->pdev->dev;
+ mutex_init(&dev->flow_db.lock);
+ mutex_init(&dev->cap_mask_mutex);
+ INIT_LIST_HEAD(&dev->qp_list);
+ spin_lock_init(&dev->reset_flow_resource_lock);
+
+#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
+ err = init_srcu_struct(&dev->mr_srcu);
+ if (err)
+ goto err_free_port;
+#endif
+
return 0;
err_free_port:
@@ -4200,11 +4214,6 @@ static int mlx5_ib_stage_caps_init(struc
if (err)
return err;
- mutex_init(&dev->flow_db.lock);
- mutex_init(&dev->cap_mask_mutex);
- INIT_LIST_HEAD(&dev->qp_list);
- spin_lock_init(&dev->reset_flow_resource_lock);
-
if ((MLX5_CAP_GEN(dev->mdev, port_type) == MLX5_CAP_PORT_TYPE_ETH) &&
(MLX5_CAP_GEN(dev->mdev, disable_local_lb_uc) ||
MLX5_CAP_GEN(dev->mdev, disable_local_lb_mc)))
@@ -4277,11 +4286,6 @@ static int mlx5_ib_stage_odp_init(struct
return mlx5_ib_odp_init_one(dev);
}
-static void mlx5_ib_stage_odp_cleanup(struct mlx5_ib_dev *dev)
-{
- mlx5_ib_odp_remove_one(dev);
-}
-
static int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev)
{
if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt)) {
@@ -4454,7 +4458,7 @@ static const struct mlx5_ib_profile pf_p
mlx5_ib_stage_dev_res_cleanup),
STAGE_CREATE(MLX5_IB_STAGE_ODP,
mlx5_ib_stage_odp_init,
- mlx5_ib_stage_odp_cleanup),
+ NULL),
STAGE_CREATE(MLX5_IB_STAGE_COUNTERS,
mlx5_ib_stage_counters_init,
mlx5_ib_stage_counters_cleanup),
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -998,7 +998,6 @@ void mlx5_ib_internal_fill_odp_caps(stru
void mlx5_ib_pfault(struct mlx5_core_dev *mdev, void *context,
struct mlx5_pagefault *pfault);
int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev);
-void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev);
int __init mlx5_ib_odp_init(void);
void mlx5_ib_odp_cleanup(void);
void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start,
@@ -1013,7 +1012,6 @@ static inline void mlx5_ib_internal_fill
}
static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; }
-static inline void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *ibdev) {}
static inline int mlx5_ib_odp_init(void) { return 0; }
static inline void mlx5_ib_odp_cleanup(void) {}
static inline void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent) {}
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -1207,10 +1207,6 @@ int mlx5_ib_odp_init_one(struct mlx5_ib_
{
int ret;
- ret = init_srcu_struct(&dev->mr_srcu);
- if (ret)
- return ret;
-
if (dev->odp_caps.general_caps & IB_ODP_SUPPORT_IMPLICIT) {
ret = mlx5_cmd_null_mkey(dev->mdev, &dev->null_mkey);
if (ret) {
@@ -1222,11 +1218,6 @@ int mlx5_ib_odp_init_one(struct mlx5_ib_
return 0;
}
-void mlx5_ib_odp_remove_one(struct mlx5_ib_dev *dev)
-{
- cleanup_srcu_struct(&dev->mr_srcu);
-}
-
int mlx5_ib_odp_init(void)
{
mlx5_imr_ksm_entries = BIT_ULL(get_order(TASK_SIZE) -