1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
7 * Holds the structures for the eal internal configuration
10 #ifndef EAL_INTERNAL_CFG_H
11 #define EAL_INTERNAL_CFG_H
14 #include <rte_pci_dev_feature_defs.h>
16 #include "eal_thread.h"
18 #if defined(RTE_ARCH_ARM) || defined(RTE_ARCH_ARM64)
19 #define MAX_HUGEPAGE_SIZES 4 /**< support up to 4 page sizes */
21 #define MAX_HUGEPAGE_SIZES 3 /**< support up to 3 page sizes */
25 * internal configuration structure for the number, size and
26 * mount points of hugepages
28 struct hugepage_info {
29 uint64_t hugepage_sz; /**< size of a huge page */
30 char hugedir[PATH_MAX]; /**< dir where hugetlbfs is mounted */
31 uint32_t num_pages[RTE_MAX_NUMA_NODES];
32 /**< number of hugepages of that size on each socket */
33 int lock_descriptor; /**< file descriptor for hugepage dir */
37 * internal configuration
39 struct internal_config {
40 volatile size_t memory; /**< amount of asked memory */
41 volatile unsigned force_nchannel; /**< force number of channels */
42 volatile unsigned force_nrank; /**< force number of ranks */
43 volatile unsigned no_hugetlbfs; /**< true to disable hugetlbfs */
44 unsigned hugepage_unlink; /**< true to unlink backing files */
45 volatile unsigned no_pci; /**< true to disable PCI */
46 volatile unsigned no_hpet; /**< true to disable HPET */
47 volatile unsigned vmware_tsc_map; /**< true to use VMware TSC mapping
48 * instead of native TSC */
49 volatile unsigned no_shconf; /**< true if there is no shared config */
50 volatile unsigned in_memory;
51 /**< true if DPDK should operate entirely in-memory and not create any
52 * shared files or runtime data.
54 volatile unsigned create_uio_dev; /**< true to create /dev/uioX devices */
55 volatile enum rte_proc_type_t process_type; /**< multi-process proc type */
56 /** true to try allocating memory on specific sockets */
57 volatile unsigned force_sockets;
58 volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */
59 volatile unsigned force_socket_limits;
60 volatile uint64_t socket_limit[RTE_MAX_NUMA_NODES]; /**< limit amount of memory per socket */
61 uintptr_t base_virtaddr; /**< base address to try and reserve memory from */
62 volatile unsigned legacy_mem;
63 /**< true to enable legacy memory behavior (no dynamic allocation,
64 * IOVA-contiguous segments).
66 volatile unsigned match_allocations;
67 /**< true to free hugepages exactly as allocated */
68 volatile unsigned single_file_segments;
69 /**< true if storing all pages within single files (per-page-size,
70 * per-node) non-legacy mode only.
72 volatile int syslog_facility; /**< facility passed to openlog() */
73 /** default interrupt mode for VFIO */
74 volatile enum rte_intr_mode vfio_intr_mode;
75 /** the shared VF token for VFIO-PCI bound PF and VFs devices */
76 rte_uuid_t vfio_vf_token;
77 char *hugefile_prefix; /**< the base filename of hugetlbfs files */
78 char *hugepage_dir; /**< specific hugetlbfs directory to use */
79 char *user_mbuf_pool_ops_name;
80 /**< user defined mbuf pool ops name */
81 unsigned num_hugepage_sizes; /**< how many sizes on this system */
82 struct hugepage_info hugepage_info[MAX_HUGEPAGE_SIZES];
83 enum rte_iova_mode iova_mode ; /**< Set IOVA mode on this system */
84 rte_cpuset_t ctrl_cpuset; /**< cpuset for ctrl threads */
85 volatile unsigned int init_complete;
86 /**< indicates whether EAL has completed initialization */
87 unsigned int no_telemetry; /**< true to disable Telemetry */
90 void eal_reset_internal_config(struct internal_config *internal_cfg);
92 #endif /* EAL_INTERNAL_CFG_H */