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 == 23 && month == 11 && 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 24.x or higher is not supported. */ 44 if (year > 23) { 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 > 1) { 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 23.03.0 is supported */ 63 if (month != 3 || minor != 0) { 64 SPDK_ERRLOG("DPDK version 23.%02d.%d is not supported.\n", month, minor); 65 return -EINVAL; 66 } 67 /* There were no changes between 22.11 and 23.03, so use the 22.11 implementation */ 68 g_dpdk_fn_table = &fn_table_2211; 69 } else { 70 /* Everything else we use the 22.07 implementation. */ 71 g_dpdk_fn_table = &fn_table_2207; 72 } 73 return 0; 74 } 75 76 struct rte_mem_resource * 77 dpdk_pci_device_get_mem_resource(struct rte_pci_device *dev, uint32_t bar) 78 { 79 return g_dpdk_fn_table->pci_device_get_mem_resource(dev, bar); 80 } 81 82 const char * 83 dpdk_pci_device_get_name(struct rte_pci_device *rte_dev) 84 { 85 return g_dpdk_fn_table->pci_device_get_name(rte_dev); 86 } 87 88 struct rte_devargs * 89 dpdk_pci_device_get_devargs(struct rte_pci_device *rte_dev) 90 { 91 return g_dpdk_fn_table->pci_device_get_devargs(rte_dev); 92 } 93 94 struct rte_pci_addr * 95 dpdk_pci_device_get_addr(struct rte_pci_device *rte_dev) 96 { 97 return g_dpdk_fn_table->pci_device_get_addr(rte_dev); 98 } 99 100 struct rte_pci_id * 101 dpdk_pci_device_get_id(struct rte_pci_device *rte_dev) 102 { 103 return g_dpdk_fn_table->pci_device_get_id(rte_dev); 104 } 105 106 int 107 dpdk_pci_device_get_numa_node(struct rte_pci_device *_dev) 108 { 109 return g_dpdk_fn_table->pci_device_get_numa_node(_dev); 110 } 111 112 int 113 dpdk_pci_device_read_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 114 { 115 return g_dpdk_fn_table->pci_device_read_config(dev, value, len, offset); 116 } 117 118 int 119 dpdk_pci_device_write_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 120 { 121 return g_dpdk_fn_table->pci_device_write_config(dev, value, len, offset); 122 } 123 124 int 125 dpdk_pci_driver_register(struct spdk_pci_driver *driver, 126 int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device), 127 int (*remove_fn)(struct rte_pci_device *device)) 128 129 { 130 return g_dpdk_fn_table->pci_driver_register(driver, probe_fn, remove_fn); 131 } 132 133 int 134 dpdk_pci_device_enable_interrupt(struct rte_pci_device *rte_dev) 135 { 136 return g_dpdk_fn_table->pci_device_enable_interrupt(rte_dev); 137 } 138 139 int 140 dpdk_pci_device_disable_interrupt(struct rte_pci_device *rte_dev) 141 { 142 return g_dpdk_fn_table->pci_device_disable_interrupt(rte_dev); 143 } 144 145 int 146 dpdk_pci_device_get_interrupt_efd(struct rte_pci_device *rte_dev) 147 { 148 return g_dpdk_fn_table->pci_device_get_interrupt_efd(rte_dev); 149 } 150 151 int 152 dpdk_bus_probe(void) 153 { 154 return g_dpdk_fn_table->bus_probe(); 155 } 156 157 void 158 dpdk_bus_scan(void) 159 { 160 g_dpdk_fn_table->bus_scan(); 161 } 162 163 struct rte_devargs * 164 dpdk_device_get_devargs(struct rte_device *dev) 165 { 166 return g_dpdk_fn_table->device_get_devargs(dev); 167 } 168 169 void 170 dpdk_device_set_devargs(struct rte_device *dev, struct rte_devargs *devargs) 171 { 172 g_dpdk_fn_table->device_set_devargs(dev, devargs); 173 } 174 175 const char * 176 dpdk_device_get_name(struct rte_device *dev) 177 { 178 return g_dpdk_fn_table->device_get_name(dev); 179 } 180 181 bool 182 dpdk_device_scan_allowed(struct rte_device *dev) 183 { 184 return g_dpdk_fn_table->device_scan_allowed(dev); 185 } 186