1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5 /** 6 * @file 7 * Holds the structures for the eal internal configuration 8 */ 9 10 #ifndef EAL_INTERNAL_CFG_H 11 #define EAL_INTERNAL_CFG_H 12 13 #include <rte_eal.h> 14 #include <rte_pci_dev_feature_defs.h> 15 16 #include "eal_thread.h" 17 18 #if defined(RTE_ARCH_ARM) 19 #define MAX_HUGEPAGE_SIZES 4 /**< support up to 4 page sizes */ 20 #else 21 #define MAX_HUGEPAGE_SIZES 3 /**< support up to 3 page sizes */ 22 #endif 23 24 /* 25 * internal configuration structure for the number, size and 26 * mount points of hugepages 27 */ 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 */ 34 }; 35 36 struct simd_bitwidth { 37 bool forced; 38 /**< flag indicating if bitwidth is forced and can't be modified */ 39 uint16_t bitwidth; /**< bitwidth value */ 40 }; 41 42 /** 43 * internal configuration 44 */ 45 struct internal_config { 46 volatile size_t memory; /**< amount of asked memory */ 47 volatile unsigned force_nchannel; /**< force number of channels */ 48 volatile unsigned force_nrank; /**< force number of ranks */ 49 volatile unsigned no_hugetlbfs; /**< true to disable hugetlbfs */ 50 unsigned hugepage_unlink; /**< true to unlink backing files */ 51 volatile unsigned no_pci; /**< true to disable PCI */ 52 volatile unsigned no_hpet; /**< true to disable HPET */ 53 volatile unsigned vmware_tsc_map; /**< true to use VMware TSC mapping 54 * instead of native TSC */ 55 volatile unsigned no_shconf; /**< true if there is no shared config */ 56 volatile unsigned in_memory; 57 /**< true if DPDK should operate entirely in-memory and not create any 58 * shared files or runtime data. 59 */ 60 volatile unsigned create_uio_dev; /**< true to create /dev/uioX devices */ 61 volatile enum rte_proc_type_t process_type; /**< multi-process proc type */ 62 /** true to try allocating memory on specific sockets */ 63 volatile unsigned force_sockets; 64 volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */ 65 volatile unsigned force_socket_limits; 66 volatile uint64_t socket_limit[RTE_MAX_NUMA_NODES]; /**< limit amount of memory per socket */ 67 uintptr_t base_virtaddr; /**< base address to try and reserve memory from */ 68 volatile unsigned legacy_mem; 69 /**< true to enable legacy memory behavior (no dynamic allocation, 70 * IOVA-contiguous segments). 71 */ 72 volatile unsigned match_allocations; 73 /**< true to free hugepages exactly as allocated */ 74 volatile unsigned single_file_segments; 75 /**< true if storing all pages within single files (per-page-size, 76 * per-node) non-legacy mode only. 77 */ 78 volatile int syslog_facility; /**< facility passed to openlog() */ 79 /** default interrupt mode for VFIO */ 80 volatile enum rte_intr_mode vfio_intr_mode; 81 /** the shared VF token for VFIO-PCI bound PF and VFs devices */ 82 rte_uuid_t vfio_vf_token; 83 char *hugefile_prefix; /**< the base filename of hugetlbfs files */ 84 char *hugepage_dir; /**< specific hugetlbfs directory to use */ 85 char *user_mbuf_pool_ops_name; 86 /**< user defined mbuf pool ops name */ 87 unsigned num_hugepage_sizes; /**< how many sizes on this system */ 88 struct hugepage_info hugepage_info[MAX_HUGEPAGE_SIZES]; 89 enum rte_iova_mode iova_mode ; /**< Set IOVA mode on this system */ 90 rte_cpuset_t ctrl_cpuset; /**< cpuset for ctrl threads */ 91 volatile unsigned int init_complete; 92 /**< indicates whether EAL has completed initialization */ 93 unsigned int no_telemetry; /**< true to disable Telemetry */ 94 struct simd_bitwidth max_simd_bitwidth; 95 /**< max simd bitwidth path to use */ 96 }; 97 98 void eal_reset_internal_config(struct internal_config *internal_cfg); 99 100 #endif /* EAL_INTERNAL_CFG_H */ 101