1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (C) 2022 Intel Corporation. 3 * All rights reserved. 4 */ 5 6 #define ALLOW_INTERNAL_API 7 #include <rte_config.h> 8 #include <rte_version.h> 9 #include "pci_dpdk.h" 10 #include "22.11/bus_pci_driver.h" 11 #include "22.11/bus_driver.h" 12 #include "22.11/rte_bus_pci.h" 13 #include "spdk/assert.h" 14 15 SPDK_STATIC_ASSERT(offsetof(struct spdk_pci_driver, driver_buf) == 0, "driver_buf must be first"); 16 SPDK_STATIC_ASSERT(offsetof(struct spdk_pci_driver, driver) >= sizeof(struct rte_pci_driver), 17 "driver_buf not big enough"); 18 19 static struct rte_mem_resource * 20 pci_device_get_mem_resource_2211(struct rte_pci_device *dev, uint32_t bar) 21 { 22 if (bar >= PCI_MAX_RESOURCE) { 23 assert(false); 24 return NULL; 25 } 26 27 return &dev->mem_resource[bar]; 28 } 29 30 static const char * 31 pci_device_get_name_2211(struct rte_pci_device *rte_dev) 32 { 33 return rte_dev->name; 34 } 35 36 static struct rte_devargs * 37 pci_device_get_devargs_2211(struct rte_pci_device *rte_dev) 38 { 39 return rte_dev->device.devargs; 40 } 41 42 static struct rte_pci_addr * 43 pci_device_get_addr_2211(struct rte_pci_device *_dev) 44 { 45 return &_dev->addr; 46 } 47 48 static struct rte_pci_id * 49 pci_device_get_id_2211(struct rte_pci_device *_dev) 50 { 51 return &_dev->id; 52 } 53 54 static int 55 pci_device_get_numa_node_2211(struct rte_pci_device *_dev) 56 { 57 return _dev->device.numa_node; 58 } 59 60 static int 61 pci_device_read_config_2211(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 62 { 63 int rc; 64 65 rc = rte_pci_read_config(dev, value, len, offset); 66 67 return (rc > 0 && (uint32_t) rc == len) ? 0 : -1; 68 } 69 70 static int 71 pci_device_write_config_2211(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 72 { 73 int rc; 74 75 rc = rte_pci_write_config(dev, value, len, offset); 76 77 #ifdef __FreeBSD__ 78 /* DPDK returns 0 on success and -1 on failure */ 79 return rc; 80 #endif 81 return (rc > 0 && (uint32_t) rc == len) ? 0 : -1; 82 } 83 84 /* translate spdk_pci_driver to an rte_pci_driver and register it to dpdk */ 85 static int 86 pci_driver_register_2211(struct spdk_pci_driver *driver, 87 int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device), 88 int (*remove_fn)(struct rte_pci_device *device)) 89 90 { 91 unsigned pci_id_count = 0; 92 struct rte_pci_id *rte_id_table; 93 char *rte_name; 94 size_t rte_name_len; 95 uint32_t rte_flags; 96 97 assert(driver->id_table); 98 while (driver->id_table[pci_id_count].vendor_id) { 99 pci_id_count++; 100 } 101 assert(pci_id_count > 0); 102 103 rte_id_table = calloc(pci_id_count + 1, sizeof(*rte_id_table)); 104 if (!rte_id_table) { 105 return -ENOMEM; 106 } 107 108 while (pci_id_count > 0) { 109 struct rte_pci_id *rte_id = &rte_id_table[pci_id_count - 1]; 110 const struct spdk_pci_id *spdk_id = &driver->id_table[pci_id_count - 1]; 111 112 rte_id->class_id = spdk_id->class_id; 113 rte_id->vendor_id = spdk_id->vendor_id; 114 rte_id->device_id = spdk_id->device_id; 115 rte_id->subsystem_vendor_id = spdk_id->subvendor_id; 116 rte_id->subsystem_device_id = spdk_id->subdevice_id; 117 pci_id_count--; 118 } 119 120 assert(driver->name); 121 rte_name_len = strlen(driver->name) + strlen("spdk_") + 1; 122 rte_name = calloc(rte_name_len, 1); 123 if (!rte_name) { 124 free(rte_id_table); 125 return -ENOMEM; 126 } 127 128 snprintf(rte_name, rte_name_len, "spdk_%s", driver->name); 129 driver->driver->driver.name = rte_name; 130 driver->driver->id_table = rte_id_table; 131 132 rte_flags = 0; 133 if (driver->drv_flags & SPDK_PCI_DRIVER_NEED_MAPPING) { 134 rte_flags |= RTE_PCI_DRV_NEED_MAPPING; 135 } 136 if (driver->drv_flags & SPDK_PCI_DRIVER_WC_ACTIVATE) { 137 rte_flags |= RTE_PCI_DRV_WC_ACTIVATE; 138 } 139 driver->driver->drv_flags = rte_flags; 140 141 driver->driver->probe = probe_fn; 142 driver->driver->remove = remove_fn; 143 144 rte_pci_register(driver->driver); 145 return 0; 146 } 147 148 static int 149 pci_device_enable_interrupt_2211(struct rte_pci_device *rte_dev) 150 { 151 #if RTE_VERSION < RTE_VERSION_NUM(21, 11, 0, 0) 152 assert(false); 153 return -1; 154 #else 155 return rte_intr_enable(rte_dev->intr_handle); 156 #endif 157 } 158 159 static int 160 pci_device_disable_interrupt_2211(struct rte_pci_device *rte_dev) 161 { 162 #if RTE_VERSION < RTE_VERSION_NUM(21, 11, 0, 0) 163 assert(false); 164 return -1; 165 #else 166 return rte_intr_disable(rte_dev->intr_handle); 167 #endif 168 } 169 170 static int 171 pci_device_get_interrupt_efd_2211(struct rte_pci_device *rte_dev) 172 { 173 #if RTE_VERSION < RTE_VERSION_NUM(21, 11, 0, 0) 174 assert(false); 175 return -1; 176 #else 177 return rte_intr_fd_get(rte_dev->intr_handle); 178 #endif 179 } 180 181 static int 182 bus_probe_2211(void) 183 { 184 return rte_bus_probe(); 185 } 186 187 static void 188 bus_scan_2211(void) 189 { 190 rte_bus_scan(); 191 } 192 193 static struct rte_devargs * 194 device_get_devargs_2211(struct rte_device *dev) 195 { 196 return dev->devargs; 197 } 198 199 static void 200 device_set_devargs_2211(struct rte_device *dev, struct rte_devargs *devargs) 201 { 202 dev->devargs = devargs; 203 } 204 205 static const char * 206 device_get_name_2211(struct rte_device *dev) 207 { 208 return dev->name; 209 } 210 211 static bool 212 device_scan_allowed_2211(struct rte_device *dev) 213 { 214 return dev->bus->conf.scan_mode == RTE_BUS_SCAN_ALLOWLIST; 215 } 216 217 struct dpdk_fn_table fn_table_2211 = { 218 .pci_device_get_mem_resource = pci_device_get_mem_resource_2211, 219 .pci_device_get_name = pci_device_get_name_2211, 220 .pci_device_get_devargs = pci_device_get_devargs_2211, 221 .pci_device_get_addr = pci_device_get_addr_2211, 222 .pci_device_get_id = pci_device_get_id_2211, 223 .pci_device_get_numa_node = pci_device_get_numa_node_2211, 224 .pci_device_read_config = pci_device_read_config_2211, 225 .pci_device_write_config = pci_device_write_config_2211, 226 .pci_driver_register = pci_driver_register_2211, 227 .pci_device_enable_interrupt = pci_device_enable_interrupt_2211, 228 .pci_device_disable_interrupt = pci_device_disable_interrupt_2211, 229 .pci_device_get_interrupt_efd = pci_device_get_interrupt_efd_2211, 230 .bus_scan = bus_scan_2211, 231 .bus_probe = bus_probe_2211, 232 .device_get_devargs = device_get_devargs_2211, 233 .device_set_devargs = device_set_devargs_2211, 234 .device_get_name = device_get_name_2211, 235 .device_scan_allowed = device_scan_allowed_2211, 236 }; 237