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_os_shim.h> 15#include <rte_pci_dev_feature_defs.h> 16 17#include "eal_thread.h" 18 19#if defined(RTE_ARCH_ARM) 20#define MAX_HUGEPAGE_SIZES 4 /**< support up to 4 page sizes */ 21#else 22#define MAX_HUGEPAGE_SIZES 3 /**< support up to 3 page sizes */ 23#endif 24 25/* 26 * internal configuration structure for the number, size and 27 * mount points of hugepages 28 */ 29struct hugepage_info { 30 uint64_t hugepage_sz; /**< size of a huge page */ 31 char hugedir[PATH_MAX]; /**< dir where hugetlbfs is mounted */ 32 uint32_t num_pages[RTE_MAX_NUMA_NODES]; 33 /**< number of hugepages of that size on each socket */ 34 int lock_descriptor; /**< file descriptor for hugepage dir */ 35}; 36 37struct simd_bitwidth { 38 bool forced; 39 /**< flag indicating if bitwidth is forced and can't be modified */ 40 uint16_t bitwidth; /**< bitwidth value */ 41}; 42 43/** 44 * internal configuration 45 */ 46struct internal_config { 47 volatile size_t memory; /**< amount of asked memory */ 48 volatile unsigned force_nchannel; /**< force number of channels */ 49 volatile unsigned force_nrank; /**< force number of ranks */ 50 volatile unsigned no_hugetlbfs; /**< true to disable hugetlbfs */ 51 unsigned hugepage_unlink; /**< true to unlink backing files */ 52 volatile unsigned no_pci; /**< true to disable PCI */ 53 volatile unsigned no_hpet; /**< true to disable HPET */ 54 volatile unsigned vmware_tsc_map; /**< true to use VMware TSC mapping 55 * instead of native TSC */ 56 volatile unsigned no_shconf; /**< true if there is no shared config */ 57 volatile unsigned in_memory; 58 /**< true if DPDK should operate entirely in-memory and not create any 59 * shared files or runtime data. 60 */ 61 volatile unsigned create_uio_dev; /**< true to create /dev/uioX devices */ 62 volatile enum rte_proc_type_t process_type; /**< multi-process proc type */ 63 /** true to try allocating memory on specific sockets */ 64 volatile unsigned force_sockets; 65 volatile uint64_t socket_mem[RTE_MAX_NUMA_NODES]; /**< amount of memory per socket */ 66 volatile unsigned force_socket_limits; 67 volatile uint64_t socket_limit[RTE_MAX_NUMA_NODES]; /**< limit amount of memory per socket */ 68 uintptr_t base_virtaddr; /**< base address to try and reserve memory from */ 69 volatile unsigned legacy_mem; 70 /**< true to enable legacy memory behavior (no dynamic allocation, 71 * IOVA-contiguous segments). 72 */ 73 volatile unsigned match_allocations; 74 /**< true to free hugepages exactly as allocated */ 75 volatile unsigned single_file_segments; 76 /**< true if storing all pages within single files (per-page-size, 77 * per-node) non-legacy mode only. 78 */ 79 volatile int syslog_facility; /**< facility passed to openlog() */ 80 /** default interrupt mode for VFIO */ 81 volatile enum rte_intr_mode vfio_intr_mode; 82 /** the shared VF token for VFIO-PCI bound PF and VFs devices */ 83 rte_uuid_t vfio_vf_token; 84 char *hugefile_prefix; /**< the base filename of hugetlbfs files */ 85 char *hugepage_dir; /**< specific hugetlbfs directory to use */ 86 char *user_mbuf_pool_ops_name; 87 /**< user defined mbuf pool ops name */ 88 unsigned num_hugepage_sizes; /**< how many sizes on this system */ 89 struct hugepage_info hugepage_info[MAX_HUGEPAGE_SIZES]; 90 enum rte_iova_mode iova_mode ; /**< Set IOVA mode on this system */ 91 rte_cpuset_t ctrl_cpuset; /**< cpuset for ctrl threads */ 92 volatile unsigned int init_complete; 93 /**< indicates whether EAL has completed initialization */ 94 unsigned int no_telemetry; /**< true to disable Telemetry */ 95 struct simd_bitwidth max_simd_bitwidth; 96 /**< max simd bitwidth path to use */ 97}; 98 99void eal_reset_internal_config(struct internal_config *internal_cfg); 100 101#endif /* EAL_INTERNAL_CFG_H */ 102