mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2017-2019 Mellanox Technologies. All rights reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _RDMA_CORE_RESTRACK_H_
|
||
|
|
#define _RDMA_CORE_RESTRACK_H_
|
||
|
|
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include <linux/rwsem.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* struct rdma_restrack_root - main resource tracking management
|
||
|
|
* entity, per-device
|
||
|
|
*/
|
||
|
|
struct rdma_restrack_root {
|
||
|
|
/*
|
||
|
|
* @rwsem: Read/write lock to protect erase of entry.
|
||
|
|
* Lists and insertions are protected by XArray internal lock.
|
||
|
|
*/
|
||
|
|
struct rw_semaphore rwsem;
|
||
|
|
/**
|
||
|
|
* @xa: Array of XArray structures to hold restrack entries.
|
||
|
|
* We want to use array of XArrays because insertion is type
|
||
|
|
* dependent. For types with xisiting unique ID (like QPN),
|
||
|
|
* we will insert to that unique index. For other types,
|
||
|
|
* we insert based on pointers and auto-allocate unique index.
|
||
|
|
*/
|
||
|
|
struct xarray xa[RDMA_RESTRACK_MAX];
|
||
|
|
/**
|
||
|
|
* @next_id: Next ID to support cyclic allocation
|
||
|
|
*/
|
||
|
|
u32 next_id[RDMA_RESTRACK_MAX];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
int rdma_restrack_init(struct ib_device *dev);
|
||
|
|
void rdma_restrack_clean(struct ib_device *dev);
|
||
|
|
#endif /* _RDMA_CORE_RESTRACK_H_ */
|