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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2013 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 Voltaire. All rights reserved.
* Copyright (c) 2011-2016 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* All Rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_RCACHE_UDREG_H
#define MCA_RCACHE_UDREG_H
#include "opal_config.h"
#include "opal/class/opal_free_list.h"
#include "opal/class/opal_list.h"
#include "opal/mca/rcache/rcache.h"
#include "opal/util/event.h"
#include "opal/util/proc.h"
#if HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
BEGIN_C_DECLS
struct mca_rcache_udreg_component_t {
mca_rcache_base_component_t super;
bool print_stats;
int leave_pinned;
};
typedef struct mca_rcache_udreg_component_t mca_rcache_udreg_component_t;
OPAL_DECLSPEC extern mca_rcache_udreg_component_t mca_rcache_udreg_component;
struct mca_rcache_udreg_resources_t {
mca_rcache_base_resources_t base;
/* udreg specific resources */
bool use_kernel_cache;
bool use_evict_w_unreg;
int max_entries;
size_t page_size;
};
typedef struct mca_rcache_udreg_resources_t mca_rcache_udreg_resources_t;
struct mca_rcache_udreg_module_t;
struct mca_rcache_udreg_module_t {
mca_rcache_base_module_t super;
mca_rcache_udreg_resources_t resources;
opal_free_list_t reg_list;
opal_mutex_t lock;
void *udreg_handle;
/** used to communicate the access flags to the underlying registration
* function */
int requested_access_flags;
int requested_flags;
};
typedef struct mca_rcache_udreg_module_t mca_rcache_udreg_module_t;
/*
* Initializes the rcache module.
*/
int mca_rcache_udreg_module_init(mca_rcache_udreg_module_t *rcache);
END_C_DECLS
#endif
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