1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (C) 2022 Intel Corporation. 3 * All rights reserved. 4 */ 5 6 #include <rte_config.h> 7 #include <rte_version.h> 8 #include "pci_dpdk.h" 9 #include "spdk/log.h" 10 11 extern struct dpdk_fn_table fn_table_2207; 12 extern struct dpdk_fn_table fn_table_2211; 13 14 static struct dpdk_fn_table *g_dpdk_fn_table; 15 16 int 17 dpdk_pci_init(void) 18 { 19 uint32_t year; 20 uint32_t month; 21 uint32_t minor; 22 char release[32] = {0}; /* Max size of DPDK version string */ 23 int count; 24 25 count = sscanf(rte_version(), "DPDK %u.%u.%u%s", &year, &month, &minor, release); 26 if (count != 3 && count != 4) { 27 SPDK_ERRLOG("Unrecognized DPDK version format '%s'\n", rte_version()); 28 return -EINVAL; 29 } 30 31 /* Add support for DPDK main branch, should be updated after each new release. 32 * Only DPDK in development has additional suffix past minor version. 33 */ 34 if (strlen(release) != 0) { 35 if (year == 24 && month == 7 && minor == 0) { 36 g_dpdk_fn_table = &fn_table_2211; 37 SPDK_NOTICELOG("In-development %s is used. There is no support for it in SPDK. " 38 "Enabled only for validation.\n", rte_version()); 39 return 0; 40 } 41 } 42 43 /* Anything 25.x or higher is not supported. */ 44 if (year >= 25) { 45 SPDK_ERRLOG("DPDK version %d.%02d.%d not supported.\n", year, month, minor); 46 return -EINVAL; 47 } 48 49 if (year == 22 && month == 11) { 50 if (minor > 4) { 51 /* It is possible that LTS minor release changed private ABI, so we 52 * cannot assume fn_table_2211 works for minor releases. As 22.11 53 * minor releases occur, this will need to be updated to either affirm 54 * no ABI changes for the minor release, or add new header files and 55 * pci_dpdk_xxx.c implementation for the new minor release. 56 */ 57 SPDK_ERRLOG("DPDK LTS version 22.11.%d not supported.\n", minor); 58 return -EINVAL; 59 } 60 g_dpdk_fn_table = &fn_table_2211; 61 } else if (year == 23) { 62 /* Only 23.11.0, 23.07.0 and 23.03.0 are supported. */ 63 if ((month != 11 || minor != 0) && 64 (month != 7 || minor != 0) && 65 (month != 3 || minor != 0)) { 66 SPDK_ERRLOG("DPDK version 23.%02d.%d is not supported.\n", month, minor); 67 return -EINVAL; 68 } 69 /* There were no changes between 22.11 and 23.11, so use the 22.11 implementation. */ 70 g_dpdk_fn_table = &fn_table_2211; 71 } else if (year == 24) { 72 /* Only 24.03.0 is supported. */ 73 if (month != 3 || minor != 0) { 74 SPDK_ERRLOG("DPDK version 24.%02d.%d is not supported.\n", month, minor); 75 return -EINVAL; 76 } 77 /* There were no changes between 22.11 and 24.03, so use the 22.11 implementation. */ 78 g_dpdk_fn_table = &fn_table_2211; 79 } else if (year < 21 || (year == 21 && month < 11)) { 80 SPDK_ERRLOG("DPDK version %02d.%02d.%d is not supported.\n", year, month, minor); 81 return -EINVAL; 82 } else { 83 /* Everything else we use the 22.07 implementation. */ 84 g_dpdk_fn_table = &fn_table_2207; 85 } 86 return 0; 87 } 88 89 struct rte_mem_resource * 90 dpdk_pci_device_get_mem_resource(struct rte_pci_device *dev, uint32_t bar) 91 { 92 return g_dpdk_fn_table->pci_device_get_mem_resource(dev, bar); 93 } 94 95 const char * 96 dpdk_pci_device_get_name(struct rte_pci_device *rte_dev) 97 { 98 return g_dpdk_fn_table->pci_device_get_name(rte_dev); 99 } 100 101 struct rte_devargs * 102 dpdk_pci_device_get_devargs(struct rte_pci_device *rte_dev) 103 { 104 return g_dpdk_fn_table->pci_device_get_devargs(rte_dev); 105 } 106 107 struct rte_pci_addr * 108 dpdk_pci_device_get_addr(struct rte_pci_device *rte_dev) 109 { 110 return g_dpdk_fn_table->pci_device_get_addr(rte_dev); 111 } 112 113 struct rte_pci_id * 114 dpdk_pci_device_get_id(struct rte_pci_device *rte_dev) 115 { 116 return g_dpdk_fn_table->pci_device_get_id(rte_dev); 117 } 118 119 int 120 dpdk_pci_device_get_numa_node(struct rte_pci_device *_dev) 121 { 122 return g_dpdk_fn_table->pci_device_get_numa_node(_dev); 123 } 124 125 int 126 dpdk_pci_device_read_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 127 { 128 return g_dpdk_fn_table->pci_device_read_config(dev, value, len, offset); 129 } 130 131 int 132 dpdk_pci_device_write_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 133 { 134 return g_dpdk_fn_table->pci_device_write_config(dev, value, len, offset); 135 } 136 137 int 138 dpdk_pci_driver_register(struct spdk_pci_driver *driver, 139 int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device), 140 int (*remove_fn)(struct rte_pci_device *device)) 141 142 { 143 return g_dpdk_fn_table->pci_driver_register(driver, probe_fn, remove_fn); 144 } 145 146 int 147 dpdk_pci_device_enable_interrupt(struct rte_pci_device *rte_dev) 148 { 149 return g_dpdk_fn_table->pci_device_enable_interrupt(rte_dev); 150 } 151 152 int 153 dpdk_pci_device_disable_interrupt(struct rte_pci_device *rte_dev) 154 { 155 return g_dpdk_fn_table->pci_device_disable_interrupt(rte_dev); 156 } 157 158 int 159 dpdk_pci_device_get_interrupt_efd(struct rte_pci_device *rte_dev) 160 { 161 return g_dpdk_fn_table->pci_device_get_interrupt_efd(rte_dev); 162 } 163 164 int 165 dpdk_bus_probe(void) 166 { 167 return g_dpdk_fn_table->bus_probe(); 168 } 169 170 void 171 dpdk_bus_scan(void) 172 { 173 g_dpdk_fn_table->bus_scan(); 174 } 175 176 struct rte_devargs * 177 dpdk_device_get_devargs(struct rte_device *dev) 178 { 179 return g_dpdk_fn_table->device_get_devargs(dev); 180 } 181 182 void 183 dpdk_device_set_devargs(struct rte_device *dev, struct rte_devargs *devargs) 184 { 185 g_dpdk_fn_table->device_set_devargs(dev, devargs); 186 } 187 188 const char * 189 dpdk_device_get_name(struct rte_device *dev) 190 { 191 return g_dpdk_fn_table->device_get_name(dev); 192 } 193 194 bool 195 dpdk_device_scan_allowed(struct rte_device *dev) 196 { 197 return g_dpdk_fn_table->device_scan_allowed(dev); 198 } 199