numam-dpdk/lib/librte_eal/common/eal_private.h

/*-
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 *
 *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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 *       notice, this list of conditions and the following disclaimer.
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 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 */

#ifndef _EAL_PRIVATE_H_
#define _EAL_PRIVATE_H_

#include <stdio.h>

/**
 * Initialize the memzone subsystem (private to eal).
 *
 * @return
 *   - 0 on success
 *   - Negative on error
 */
int rte_eal_memzone_init(void);

/**
 * Common log initialization function (private to eal).
 *
 * Called by environment-specific log initialization function to initialize
 * log history.
 *
 * @param default_log
 *   The default log stream to be used.
 * @return
 *   - 0 on success
 *   - Negative on error
 */
int rte_eal_common_log_init(FILE *default_log);

/**
 * Fill configuration with number of physical and logical processors
 *
 * This function is private to EAL.
 *
 * Parse /proc/cpuinfo to get the number of physical and logical
 * processors on the machine.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_cpu_init(void);

/**
 * Map memory
 *
 * This function is private to EAL.
 *
 * Fill configuration structure with these infos, and return 0 on success.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_memory_init(void);

/**
 * Configure timers
 *
 * This function is private to EAL.
 *
 * Mmap memory areas used by HPET (high precision event timer) that will
 * provide our time reference, and configure the TSC frequency also for it
 * to be used as a reference.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_timer_init(void);

/**
 * Init early logs
 *
 * This function is private to EAL.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_log_early_init(void);

/**
 * Init the default log stream
 *
 * This function is private to EAL.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_log_init(const char *id, int facility);

/**
 * Init the default log stream
 *
 * This function is private to EAL.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_pci_init(void);

#ifdef RTE_LIBRTE_IVSHMEM
/**
 * Init the memory from IVSHMEM devices
 *
 * This function is private to EAL.
 *
 * @return
 *  0 on success, negative on error
 */
int rte_eal_ivshmem_init(void);

/**
 * Init objects in IVSHMEM devices
 *
 * This function is private to EAL.
 *
 * @return
 *  0 on success, negative on error
 */
int rte_eal_ivshmem_obj_init(void);
#endif

struct rte_pci_driver;
struct rte_pci_device;

/**
 * Mmap memory for single PCI device
 *
 * This function is private to EAL.
 *
 * @return
 *   0 on success, negative on error
 */
int rte_eal_pci_probe_one_driver(struct rte_pci_driver *dr,
		struct rte_pci_device *dev);

/**
 * Munmap memory for single PCI device
 *
 * This function is private to EAL.
 *
 * @param	dr
 *  The pointer to the pci driver structure
 * @param	dev
 *  The pointer to the pci device structure
 * @return
 *   0 on success, negative on error
 */
int rte_eal_pci_close_one_driver(struct rte_pci_driver *dr,
		struct rte_pci_device *dev);

/**
 * Init tail queues for non-EAL library structures. This is to allow
 * the rings, mempools, etc. lists to be shared among multiple processes
 *
 * This function is private to EAL
 *
 * @return
 *    0 on success, negative on error
 */
int rte_eal_tailqs_init(void);

/**
 * Init interrupt handling.
 *
 * This function is private to EAL.
 *
 * @return
 *  0 on success, negative on error
 */
int rte_eal_intr_init(void);

/**
 * Init alarm mechanism. This is to allow a callback be called after
 * specific time.
 *
 * This function is private to EAL.
 *
 * @return
 *  0 on success, negative on error
 */
int rte_eal_alarm_init(void);

/**
 * This function initialises any virtual devices
 *
 * This function is private to the EAL.
 */
int rte_eal_dev_init(void);

/**
 * Function is to check if the kernel module(like, vfio, vfio_iommu_type1,
 * etc.) loaded.
 *
 * @param module_name
 *	The module's name which need to be checked
 *
 * @return
 *	-1 means some error happens(NULL pointer or open failure)
 *	0  means the module not loaded
 *	1  means the module loaded
 */
int rte_eal_check_module(const char *module_name);

#endif /* _EAL_PRIVATE_H_ */