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34 #ifndef _EAL_PRIVATE_H_
35 #define _EAL_PRIVATE_H_
41 * Initialize the memzone subsystem (private to eal).
47 int rte_eal_memzone_init(void);
50 * Common log initialization function (private to eal).
52 * Called by environment-specific log initialization function to initialize
56 * The default log stream to be used.
61 int rte_eal_common_log_init(FILE *default_log);
64 * Fill configuration with number of physical and logical processors
66 * This function is private to EAL.
68 * Parse /proc/cpuinfo to get the number of physical and logical
69 * processors on the machine.
72 * 0 on success, negative on error
74 int rte_eal_cpu_init(void);
79 * This function is private to EAL.
81 * Fill configuration structure with these infos, and return 0 on success.
84 * 0 on success, negative on error
86 int rte_eal_memory_init(void);
91 * This function is private to EAL.
93 * Mmap memory areas used by HPET (high precision event timer) that will
94 * provide our time reference, and configure the TSC frequency also for it
95 * to be used as a reference.
98 * 0 on success, negative on error
100 int rte_eal_timer_init(void);
105 * This function is private to EAL.
108 * 0 on success, negative on error
110 int rte_eal_log_early_init(void);
113 * Init the default log stream
115 * This function is private to EAL.
118 * 0 on success, negative on error
120 int rte_eal_log_init(const char *id, int facility);
123 * Init the default log stream
125 * This function is private to EAL.
128 * 0 on success, negative on error
130 int rte_eal_pci_init(void);
132 #ifdef RTE_LIBRTE_IVSHMEM
134 * Init the memory from IVSHMEM devices
136 * This function is private to EAL.
139 * 0 on success, negative on error
141 int rte_eal_ivshmem_init(void);
144 * Init objects in IVSHMEM devices
146 * This function is private to EAL.
149 * 0 on success, negative on error
151 int rte_eal_ivshmem_obj_init(void);
154 struct rte_pci_driver;
155 struct rte_pci_device;
158 * Unbind kernel driver for this device
160 * This function is private to EAL.
163 * 0 on success, negative on error
165 int pci_unbind_kernel_driver(struct rte_pci_device *dev);
170 * This function is private to EAL.
173 * 0 on success, negative on error and positive if no driver
174 * is found for the device.
176 int pci_map_device(struct rte_pci_device *dev);
181 * This function is private to EAL.
183 void pci_unmap_device(struct rte_pci_device *dev);
186 * Map the PCI resource of a PCI device in virtual memory
188 * This function is private to EAL.
191 * 0 on success, negative on error
193 int pci_uio_map_resource(struct rte_pci_device *dev);
196 * Unmap the PCI resource of a PCI device
198 * This function is private to EAL.
200 void pci_uio_unmap_resource(struct rte_pci_device *dev);
203 * Allocate uio resource for PCI device
205 * This function is private to EAL.
208 * PCI device to allocate uio resource
210 * Pointer to uio resource.
211 * If the function returns 0, the pointer will be filled.
213 * 0 on success, negative on error
215 int pci_uio_alloc_resource(struct rte_pci_device *dev,
216 struct mapped_pci_resource **uio_res);
219 * Free uio resource for PCI device
221 * This function is private to EAL.
224 * PCI device to free uio resource
226 * Pointer to uio resource.
228 void pci_uio_free_resource(struct rte_pci_device *dev,
229 struct mapped_pci_resource *uio_res);
232 * Map device memory to uio resource
234 * This function is private to EAL.
237 * PCI device that has memory information.
239 * Memory resource index of the PCI device.
241 * uio resource that will keep mapping information.
243 * Mapping information index of the uio resource.
245 * 0 on success, negative on error
247 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
248 struct mapped_pci_resource *uio_res, int map_idx);
251 * Init tail queues for non-EAL library structures. This is to allow
252 * the rings, mempools, etc. lists to be shared among multiple processes
254 * This function is private to EAL
257 * 0 on success, negative on error
259 int rte_eal_tailqs_init(void);
262 * Init interrupt handling.
264 * This function is private to EAL.
267 * 0 on success, negative on error
269 int rte_eal_intr_init(void);
272 * Init alarm mechanism. This is to allow a callback be called after
275 * This function is private to EAL.
278 * 0 on success, negative on error
280 int rte_eal_alarm_init(void);
283 * This function initialises any virtual devices
285 * This function is private to the EAL.
287 int rte_eal_dev_init(void);
290 * Function is to check if the kernel module(like, vfio, vfio_iommu_type1,
294 * The module's name which need to be checked
297 * -1 means some error happens(NULL pointer or open failure)
298 * 0 means the module not loaded
299 * 1 means the module loaded
301 int rte_eal_check_module(const char *module_name);
306 * This function is private to the EAL.
308 unsigned eal_cpu_core_id(unsigned lcore_id);
311 * Check if cpu is present.
313 * This function is private to the EAL.
315 int eal_cpu_detected(unsigned lcore_id);
318 * Set TSC frequency from precise value or estimation
320 * This function is private to the EAL.
322 void set_tsc_freq(void);
325 * Get precise TSC frequency from system
327 * This function is private to the EAL.
329 uint64_t get_tsc_freq(void);
332 * Prepare physical memory mapping
333 * i.e. hugepages on Linux and
336 * This function is private to the EAL.
338 int rte_eal_hugepage_init(void);
341 * Creates memory mapping in secondary process
342 * i.e. hugepages on Linux and
345 * This function is private to the EAL.
347 int rte_eal_hugepage_attach(void);
349 #endif /* _EAL_PRIVATE_H_ */