[PATCH net-next v3 3/8] net/mlx5: Drop extra layer of locks in IPsec
From: Leon Romanovsky <leon@kernel.org>
Date: 2023-08-17 09:13:30
Also in:
linux-doc
Subsystem:
mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Leon Romanovsky, Tariq Toukan, Mark Bloch, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Leon Romanovsky <leonro@nvidia.com> There is no need in holding devlink lock as it gives nothing compared to already used write mode_lock. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- .../mellanox/mlx5/core/eswitch_offloads.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 46b8c60ac39a..ef2bb04f10be 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c@@ -3879,38 +3879,28 @@ int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode) bool mlx5_eswitch_block_encap(struct mlx5_core_dev *dev) { - struct devlink *devlink = priv_to_devlink(dev); - struct mlx5_eswitch *esw; + struct mlx5_eswitch *esw = dev->priv.eswitch; - devl_lock(devlink); - esw = mlx5_devlink_eswitch_get(devlink); - if (IS_ERR(esw)) { - devl_unlock(devlink); - /* Failure means no eswitch => not possible to change encap */ + if (!mlx5_esw_allowed(esw)) return true; - } down_write(&esw->mode_lock); if (esw->mode != MLX5_ESWITCH_LEGACY && esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE) { up_write(&esw->mode_lock); - devl_unlock(devlink); return false; } esw->offloads.num_block_encap++; up_write(&esw->mode_lock); - devl_unlock(devlink); return true; } void mlx5_eswitch_unblock_encap(struct mlx5_core_dev *dev) { - struct devlink *devlink = priv_to_devlink(dev); - struct mlx5_eswitch *esw; + struct mlx5_eswitch *esw = dev->priv.eswitch; - esw = mlx5_devlink_eswitch_get(devlink); - if (IS_ERR(esw)) + if (!mlx5_esw_allowed(esw)) return; down_write(&esw->mode_lock);
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2.41.0