linux/drivers/infiniband/hw/mlx5/fs.h
Patrisious Haddad 40852c8901 RDMA/mlx5: Add multiple priorities support to RDMA TRANSPORT userspace tables
Support the creation of RDMA TRANSPORT tables over multiple priorities
via matcher creation.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/bb38e50ae4504e979c6568d41939402a4cf15635.1750148083.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-06-25 04:00:33 -04:00

36 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright (c) 2013-2020, Mellanox Technologies inc. All rights reserved.
*/
#ifndef _MLX5_IB_FS_H
#define _MLX5_IB_FS_H
#include "mlx5_ib.h"
int mlx5_ib_fs_init(struct mlx5_ib_dev *dev);
void mlx5_ib_fs_cleanup_anchor(struct mlx5_ib_dev *dev);
static inline void mlx5_ib_fs_cleanup(struct mlx5_ib_dev *dev)
{
int i;
/* When a steering anchor is created, a special flow table is also
* created for the user to reference. Since the user can reference it,
* the kernel cannot trust that when the user destroys the steering
* anchor, they no longer reference the flow table.
*
* To address this issue, when a user destroys a steering anchor, only
* the flow steering rule in the table is destroyed, but the table
* itself is kept to deal with the above scenario. The remaining
* resources are only removed when the RDMA device is destroyed, which
* is a safe assumption that all references are gone.
*/
mlx5_ib_fs_cleanup_anchor(dev);
for (i = 0; i < MLX5_RDMA_TRANSPORT_BYPASS_PRIO; i++)
kfree(dev->flow_db->rdma_transport_tx[i]);
for (i = 0; i < MLX5_RDMA_TRANSPORT_BYPASS_PRIO; i++)
kfree(dev->flow_db->rdma_transport_rx[i]);
kfree(dev->flow_db);
}
#endif /* _MLX5_IB_FS_H */