mirror of https://github.com/F-Stack/f-stack.git
130 lines
3.0 KiB
C
130 lines
3.0 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2020 Dmitry Kozlyuk
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*/
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#ifndef _EAL_WINDOWS_H_
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#define _EAL_WINDOWS_H_
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/**
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* @file Facilities private to Windows EAL
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*/
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#include <rte_errno.h>
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#include <rte_windows.h>
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/**
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* Log current function as not implemented and set rte_errno.
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*/
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#define EAL_LOG_NOT_IMPLEMENTED() \
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do { \
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RTE_LOG(DEBUG, EAL, "%s() is not implemented\n", __func__); \
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rte_errno = ENOTSUP; \
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} while (0)
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/**
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* Log current function as a stub.
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*/
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#define EAL_LOG_STUB() \
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RTE_LOG(DEBUG, EAL, "Windows: %s() is a stub\n", __func__)
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/**
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* Create a map of processors and cores on the system.
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*
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* @return
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* 0 on success, (-1) on failure and rte_errno is set.
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*/
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int eal_create_cpu_map(void);
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/**
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* Create a thread.
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*
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* @param thread
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* The location to store the thread id if successful.
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* @return
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* 0 for success, -1 if the thread is not created.
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*/
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int eal_thread_create(pthread_t *thread);
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/**
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* Get system NUMA node number for a socket ID.
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*
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* @param socket_id
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* Valid EAL socket ID.
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* @return
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* NUMA node number to use with Win32 API.
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*/
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unsigned int eal_socket_numa_node(unsigned int socket_id);
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/**
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* Schedule code for execution in the interrupt thread.
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*
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* @param func
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* Function to call.
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* @param arg
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* Argument to the called function.
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* @return
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* 0 on success, netagive error code on failure.
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*/
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int eal_intr_thread_schedule(void (*func)(void *arg), void *arg);
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/**
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* Open virt2phys driver interface device.
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*
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* @return 0 on success, (-1) on failure.
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*/
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int eal_mem_virt2iova_init(void);
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/**
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* Locate Win32 memory management routines in system libraries.
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*
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* @return 0 on success, (-1) on failure.
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*/
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int eal_mem_win32api_init(void);
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/**
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* Allocate new memory in hugepages on the specified NUMA node.
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*
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* @param size
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* Number of bytes to allocate. Must be a multiple of huge page size.
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* @param socket_id
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* Socket ID.
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* @return
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* Address of the memory allocated on success or NULL on failure.
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*/
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void *eal_mem_alloc_socket(size_t size, int socket_id);
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/**
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* Commit memory previously reserved with eal_mem_reserve()
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* or decommitted from hugepages by eal_mem_decommit().
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*
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* @param requested_addr
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* Address within a reserved region. Must not be NULL.
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* @param size
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* Number of bytes to commit. Must be a multiple of page size.
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* @param socket_id
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* Socket ID to allocate on. Can be SOCKET_ID_ANY.
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* @return
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* On success, address of the committed memory, that is, requested_addr.
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* On failure, NULL and rte_errno is set.
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*/
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void *eal_mem_commit(void *requested_addr, size_t size, int socket_id);
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/**
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* Put allocated or committed memory back into reserved state.
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*
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* @param addr
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* Address of the region to decommit.
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* @param size
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* Number of bytes to decommit, must be the size of a page
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* (hugepage or regular one).
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*
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* The *addr* and *size* must match location and size
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* of a previously allocated or committed region.
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*
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* @return
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* 0 on success, (-1) on failure.
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*/
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int eal_mem_decommit(void *addr, size_t size);
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#endif /* _EAL_WINDOWS_H_ */
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