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. 32 * Only DPDK in development has additional suffix past minor version. 33 */ 34 if (strlen(release) != 0) { 35 if (year == 23 && month == 7 && minor == 0) { 36 g_dpdk_fn_table = &fn_table_2211; 37 SPDK_NOTICELOG("DPDK version 23.07.0 not supported yet. Enabled only for validation.\n"); 38 return 0; 39 } 40 } 41 42 /* Anything 24.x or higher is not supported. */ 43 if (year > 23) { 44 SPDK_ERRLOG("DPDK version %d.%02d.%d not supported.\n", year, month, minor); 45 return -EINVAL; 46 } 47 48 if (year == 22 && month == 11) { 49 if (minor > 1) { 50 /* It is possible that LTS minor release changed private ABI, so we 51 * cannot assume fn_table_2211 works for minor releases. As 22.11 52 * minor releases occur, this will need to be updated to either affirm 53 * no ABI changes for the minor release, or add new header files and 54 * pci_dpdk_xxx.c implementation for the new minor release. 55 */ 56 SPDK_ERRLOG("DPDK LTS version 22.11.%d not supported.\n", minor); 57 return -EINVAL; 58 } 59 g_dpdk_fn_table = &fn_table_2211; 60 } else if (year == 23) { 61 /* Only 23.03.0 is supported */ 62 if (month != 3 || minor != 0) { 63 SPDK_ERRLOG("DPDK version 23.%02d.%d is not supported.\n", month, minor); 64 return -EINVAL; 65 } 66 /* There were no changes between 22.11 and 23.03, so use the 22.11 implementation */ 67 g_dpdk_fn_table = &fn_table_2211; 68 } else { 69 /* Everything else we use the 22.07 implementation. */ 70 g_dpdk_fn_table = &fn_table_2207; 71 } 72 return 0; 73 } 74 75 struct rte_mem_resource * 76 dpdk_pci_device_get_mem_resource(struct rte_pci_device *dev, uint32_t bar) 77 { 78 return g_dpdk_fn_table->pci_device_get_mem_resource(dev, bar); 79 } 80 81 const char * 82 dpdk_pci_device_get_name(struct rte_pci_device *rte_dev) 83 { 84 return g_dpdk_fn_table->pci_device_get_name(rte_dev); 85 } 86 87 struct rte_devargs * 88 dpdk_pci_device_get_devargs(struct rte_pci_device *rte_dev) 89 { 90 return g_dpdk_fn_table->pci_device_get_devargs(rte_dev); 91 } 92 93 struct rte_pci_addr * 94 dpdk_pci_device_get_addr(struct rte_pci_device *rte_dev) 95 { 96 return g_dpdk_fn_table->pci_device_get_addr(rte_dev); 97 } 98 99 struct rte_pci_id * 100 dpdk_pci_device_get_id(struct rte_pci_device *rte_dev) 101 { 102 return g_dpdk_fn_table->pci_device_get_id(rte_dev); 103 } 104 105 int 106 dpdk_pci_device_get_numa_node(struct rte_pci_device *_dev) 107 { 108 return g_dpdk_fn_table->pci_device_get_numa_node(_dev); 109 } 110 111 int 112 dpdk_pci_device_read_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 113 { 114 return g_dpdk_fn_table->pci_device_read_config(dev, value, len, offset); 115 } 116 117 int 118 dpdk_pci_device_write_config(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 119 { 120 return g_dpdk_fn_table->pci_device_write_config(dev, value, len, offset); 121 } 122 123 int 124 dpdk_pci_driver_register(struct spdk_pci_driver *driver, 125 int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device), 126 int (*remove_fn)(struct rte_pci_device *device)) 127 128 { 129 return g_dpdk_fn_table->pci_driver_register(driver, probe_fn, remove_fn); 130 } 131 132 int 133 dpdk_pci_device_enable_interrupt(struct rte_pci_device *rte_dev) 134 { 135 return g_dpdk_fn_table->pci_device_enable_interrupt(rte_dev); 136 } 137 138 int 139 dpdk_pci_device_disable_interrupt(struct rte_pci_device *rte_dev) 140 { 141 return g_dpdk_fn_table->pci_device_disable_interrupt(rte_dev); 142 } 143 144 int 145 dpdk_pci_device_get_interrupt_efd(struct rte_pci_device *rte_dev) 146 { 147 return g_dpdk_fn_table->pci_device_get_interrupt_efd(rte_dev); 148 } 149 150 int 151 dpdk_bus_probe(void) 152 { 153 return g_dpdk_fn_table->bus_probe(); 154 } 155 156 void 157 dpdk_bus_scan(void) 158 { 159 g_dpdk_fn_table->bus_scan(); 160 } 161 162 struct rte_devargs * 163 dpdk_device_get_devargs(struct rte_device *dev) 164 { 165 return g_dpdk_fn_table->device_get_devargs(dev); 166 } 167 168 void 169 dpdk_device_set_devargs(struct rte_device *dev, struct rte_devargs *devargs) 170 { 171 g_dpdk_fn_table->device_set_devargs(dev, devargs); 172 } 173 174 const char * 175 dpdk_device_get_name(struct rte_device *dev) 176 { 177 return g_dpdk_fn_table->device_get_name(dev); 178 } 179 180 bool 181 dpdk_device_scan_allowed(struct rte_device *dev) 182 { 183 return g_dpdk_fn_table->device_scan_allowed(dev); 184 } 185