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 /* Following API was added in versions later than DPDK 22.11. 20 * It is unused right now, if this changes a new pci_dpdk_* should be added. 21 */ 22 #define rte_pci_mmio_read(...) SPDK_STATIC_ASSERT(false, "rte_pci_mmio_read requires new pci_dpdk_2307 compat layer") 23 #define rte_pci_mmio_write(...) SPDK_STATIC_ASSERT(false, "rte_pci_mmio_write requires new pci_dpdk_2307 compat layer") 24 #define rte_pci_pasid_set_state(...) SPDK_STATIC_ASSERT(false, "rte_pci_pasid_set_state requires new pci_dpdk_2307 compat layer") 25 26 static struct rte_mem_resource * 27 pci_device_get_mem_resource_2211(struct rte_pci_device *dev, uint32_t bar) 28 { 29 if (bar >= PCI_MAX_RESOURCE) { 30 assert(false); 31 return NULL; 32 } 33 34 return &dev->mem_resource[bar]; 35 } 36 37 static const char * 38 pci_device_get_name_2211(struct rte_pci_device *rte_dev) 39 { 40 return rte_dev->name; 41 } 42 43 static struct rte_devargs * 44 pci_device_get_devargs_2211(struct rte_pci_device *rte_dev) 45 { 46 return rte_dev->device.devargs; 47 } 48 49 static struct rte_pci_addr * 50 pci_device_get_addr_2211(struct rte_pci_device *_dev) 51 { 52 return &_dev->addr; 53 } 54 55 static struct rte_pci_id * 56 pci_device_get_id_2211(struct rte_pci_device *_dev) 57 { 58 return &_dev->id; 59 } 60 61 static int 62 pci_device_get_numa_node_2211(struct rte_pci_device *_dev) 63 { 64 return _dev->device.numa_node; 65 } 66 67 static int 68 pci_device_read_config_2211(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 69 { 70 int rc; 71 72 rc = rte_pci_read_config(dev, value, len, offset); 73 74 return (rc > 0 && (uint32_t) rc == len) ? 0 : -1; 75 } 76 77 static int 78 pci_device_write_config_2211(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset) 79 { 80 int rc; 81 82 rc = rte_pci_write_config(dev, value, len, offset); 83 84 #ifdef __FreeBSD__ 85 /* DPDK returns 0 on success and -1 on failure */ 86 return rc; 87 #endif 88 return (rc > 0 && (uint32_t) rc == len) ? 0 : -1; 89 } 90 91 /* translate spdk_pci_driver to an rte_pci_driver and register it to dpdk */ 92 static int 93 pci_driver_register_2211(struct spdk_pci_driver *driver, 94 int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device), 95 int (*remove_fn)(struct rte_pci_device *device)) 96 97 { 98 unsigned pci_id_count = 0; 99 struct rte_pci_id *rte_id_table; 100 char *rte_name; 101 size_t rte_name_len; 102 uint32_t rte_flags; 103 104 assert(driver->id_table); 105 while (driver->id_table[pci_id_count].vendor_id) { 106 pci_id_count++; 107 } 108 assert(pci_id_count > 0); 109 110 rte_id_table = calloc(pci_id_count + 1, sizeof(*rte_id_table)); 111 if (!rte_id_table) { 112 return -ENOMEM; 113 } 114 115 while (pci_id_count > 0) { 116 struct rte_pci_id *rte_id = &rte_id_table[pci_id_count - 1]; 117 const struct spdk_pci_id *spdk_id = &driver->id_table[pci_id_count - 1]; 118 119 rte_id->class_id = spdk_id->class_id; 120 rte_id->vendor_id = spdk_id->vendor_id; 121 rte_id->device_id = spdk_id->device_id; 122 rte_id->subsystem_vendor_id = spdk_id->subvendor_id; 123 rte_id->subsystem_device_id = spdk_id->subdevice_id; 124 pci_id_count--; 125 } 126 127 assert(driver->name); 128 rte_name_len = strlen(driver->name) + strlen("spdk_") + 1; 129 rte_name = calloc(rte_name_len, 1); 130 if (!rte_name) { 131 free(rte_id_table); 132 return -ENOMEM; 133 } 134 135 snprintf(rte_name, rte_name_len, "spdk_%s", driver->name); 136 driver->driver->driver.name = rte_name; 137 driver->driver->id_table = rte_id_table; 138 139 rte_flags = 0; 140 if (driver->drv_flags & SPDK_PCI_DRIVER_NEED_MAPPING) { 141 rte_flags |= RTE_PCI_DRV_NEED_MAPPING; 142 } 143 if (driver->drv_flags & SPDK_PCI_DRIVER_WC_ACTIVATE) { 144 rte_flags |= RTE_PCI_DRV_WC_ACTIVATE; 145 } 146 driver->driver->drv_flags = rte_flags; 147 148 driver->driver->probe = probe_fn; 149 driver->driver->remove = remove_fn; 150 151 rte_pci_register(driver->driver); 152 return 0; 153 } 154 155 static int 156 pci_device_enable_interrupt_2211(struct rte_pci_device *rte_dev) 157 { 158 return rte_intr_enable(rte_dev->intr_handle); 159 } 160 161 static int 162 pci_device_disable_interrupt_2211(struct rte_pci_device *rte_dev) 163 { 164 return rte_intr_disable(rte_dev->intr_handle); 165 } 166 167 static int 168 pci_device_get_interrupt_efd_2211(struct rte_pci_device *rte_dev) 169 { 170 return rte_intr_fd_get(rte_dev->intr_handle); 171 } 172 173 static int 174 bus_probe_2211(void) 175 { 176 return rte_bus_probe(); 177 } 178 179 static void 180 bus_scan_2211(void) 181 { 182 rte_bus_scan(); 183 } 184 185 static struct rte_devargs * 186 device_get_devargs_2211(struct rte_device *dev) 187 { 188 return dev->devargs; 189 } 190 191 static void 192 device_set_devargs_2211(struct rte_device *dev, struct rte_devargs *devargs) 193 { 194 dev->devargs = devargs; 195 } 196 197 static const char * 198 device_get_name_2211(struct rte_device *dev) 199 { 200 return dev->name; 201 } 202 203 static bool 204 device_scan_allowed_2211(struct rte_device *dev) 205 { 206 return dev->bus->conf.scan_mode == RTE_BUS_SCAN_ALLOWLIST; 207 } 208 209 struct dpdk_fn_table fn_table_2211 = { 210 .pci_device_get_mem_resource = pci_device_get_mem_resource_2211, 211 .pci_device_get_name = pci_device_get_name_2211, 212 .pci_device_get_devargs = pci_device_get_devargs_2211, 213 .pci_device_get_addr = pci_device_get_addr_2211, 214 .pci_device_get_id = pci_device_get_id_2211, 215 .pci_device_get_numa_node = pci_device_get_numa_node_2211, 216 .pci_device_read_config = pci_device_read_config_2211, 217 .pci_device_write_config = pci_device_write_config_2211, 218 .pci_driver_register = pci_driver_register_2211, 219 .pci_device_enable_interrupt = pci_device_enable_interrupt_2211, 220 .pci_device_disable_interrupt = pci_device_disable_interrupt_2211, 221 .pci_device_get_interrupt_efd = pci_device_get_interrupt_efd_2211, 222 .bus_scan = bus_scan_2211, 223 .bus_probe = bus_probe_2211, 224 .device_get_devargs = device_get_devargs_2211, 225 .device_set_devargs = device_set_devargs_2211, 226 .device_get_name = device_get_name_2211, 227 .device_scan_allowed = device_scan_allowed_2211, 228 }; 229