Line data Source code
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 "22.07/rte_dev.h"
10 : #include "22.07/rte_bus.h"
11 : #include "22.07/rte_bus_pci.h"
12 : #include "spdk/assert.h"
13 :
14 : SPDK_STATIC_ASSERT(offsetof(struct spdk_pci_driver, driver_buf) == 0, "driver_buf must be first");
15 : SPDK_STATIC_ASSERT(offsetof(struct spdk_pci_driver, driver) >= sizeof(struct rte_pci_driver),
16 : "driver_buf not big enough");
17 :
18 : static struct rte_mem_resource *
19 0 : pci_device_get_mem_resource_2207(struct rte_pci_device *dev, uint32_t bar)
20 : {
21 0 : if (bar >= PCI_MAX_RESOURCE) {
22 0 : assert(false);
23 : return NULL;
24 : }
25 :
26 0 : return &dev->mem_resource[bar];
27 : }
28 :
29 : static const char *
30 0 : pci_device_get_name_2207(struct rte_pci_device *rte_dev)
31 : {
32 0 : return rte_dev->name;
33 : }
34 :
35 : static struct rte_devargs *
36 0 : pci_device_get_devargs_2207(struct rte_pci_device *rte_dev)
37 : {
38 0 : return rte_dev->device.devargs;
39 : }
40 :
41 : static struct rte_pci_addr *
42 0 : pci_device_get_addr_2207(struct rte_pci_device *_dev)
43 : {
44 0 : return &_dev->addr;
45 : }
46 :
47 : static struct rte_pci_id *
48 0 : pci_device_get_id_2207(struct rte_pci_device *_dev)
49 : {
50 0 : return &_dev->id;
51 : }
52 :
53 : static int
54 0 : pci_device_get_numa_node_2207(struct rte_pci_device *_dev)
55 : {
56 0 : return _dev->device.numa_node;
57 : }
58 :
59 : static int
60 0 : pci_device_read_config_2207(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset)
61 : {
62 : int rc;
63 :
64 0 : rc = rte_pci_read_config(dev, value, len, offset);
65 :
66 0 : return (rc > 0 && (uint32_t) rc == len) ? 0 : -1;
67 : }
68 :
69 : static int
70 0 : pci_device_write_config_2207(struct rte_pci_device *dev, void *value, uint32_t len, uint32_t offset)
71 : {
72 : int rc;
73 :
74 0 : rc = rte_pci_write_config(dev, value, len, offset);
75 :
76 : #ifdef __FreeBSD__
77 : /* DPDK returns 0 on success and -1 on failure */
78 : return rc;
79 : #endif
80 0 : return (rc > 0 && (uint32_t) rc == len) ? 0 : -1;
81 : }
82 :
83 : /* translate spdk_pci_driver to an rte_pci_driver and register it to dpdk */
84 : static int
85 0 : pci_driver_register_2207(struct spdk_pci_driver *driver,
86 : int (*probe_fn)(struct rte_pci_driver *driver, struct rte_pci_device *device),
87 : int (*remove_fn)(struct rte_pci_device *device))
88 :
89 : {
90 0 : unsigned pci_id_count = 0;
91 : struct rte_pci_id *rte_id_table;
92 : char *rte_name;
93 : size_t rte_name_len;
94 : uint32_t rte_flags;
95 :
96 0 : assert(driver->id_table);
97 0 : while (driver->id_table[pci_id_count].vendor_id) {
98 0 : pci_id_count++;
99 : }
100 0 : assert(pci_id_count > 0);
101 :
102 0 : rte_id_table = calloc(pci_id_count + 1, sizeof(*rte_id_table));
103 0 : if (!rte_id_table) {
104 0 : return -ENOMEM;
105 : }
106 :
107 0 : while (pci_id_count > 0) {
108 0 : struct rte_pci_id *rte_id = &rte_id_table[pci_id_count - 1];
109 0 : const struct spdk_pci_id *spdk_id = &driver->id_table[pci_id_count - 1];
110 :
111 0 : rte_id->class_id = spdk_id->class_id;
112 0 : rte_id->vendor_id = spdk_id->vendor_id;
113 0 : rte_id->device_id = spdk_id->device_id;
114 0 : rte_id->subsystem_vendor_id = spdk_id->subvendor_id;
115 0 : rte_id->subsystem_device_id = spdk_id->subdevice_id;
116 0 : pci_id_count--;
117 : }
118 :
119 0 : assert(driver->name);
120 0 : rte_name_len = strlen(driver->name) + strlen("spdk_") + 1;
121 0 : rte_name = calloc(rte_name_len, 1);
122 0 : if (!rte_name) {
123 0 : free(rte_id_table);
124 0 : return -ENOMEM;
125 : }
126 :
127 0 : snprintf(rte_name, rte_name_len, "spdk_%s", driver->name);
128 0 : driver->driver->driver.name = rte_name;
129 0 : driver->driver->id_table = rte_id_table;
130 :
131 0 : rte_flags = 0;
132 0 : if (driver->drv_flags & SPDK_PCI_DRIVER_NEED_MAPPING) {
133 0 : rte_flags |= RTE_PCI_DRV_NEED_MAPPING;
134 : }
135 0 : if (driver->drv_flags & SPDK_PCI_DRIVER_WC_ACTIVATE) {
136 0 : rte_flags |= RTE_PCI_DRV_WC_ACTIVATE;
137 : }
138 0 : driver->driver->drv_flags = rte_flags;
139 :
140 0 : driver->driver->probe = probe_fn;
141 0 : driver->driver->remove = remove_fn;
142 :
143 0 : rte_pci_register(driver->driver);
144 0 : return 0;
145 : }
146 :
147 : static int
148 0 : pci_device_enable_interrupt_2207(struct rte_pci_device *rte_dev)
149 : {
150 0 : return rte_intr_enable(rte_dev->intr_handle);
151 : }
152 :
153 : static int
154 0 : pci_device_disable_interrupt_2207(struct rte_pci_device *rte_dev)
155 : {
156 0 : return rte_intr_disable(rte_dev->intr_handle);
157 : }
158 :
159 : static int
160 0 : pci_device_get_interrupt_efd_2207(struct rte_pci_device *rte_dev)
161 : {
162 0 : return rte_intr_fd_get(rte_dev->intr_handle);
163 : }
164 :
165 : static int
166 0 : bus_probe_2207(void)
167 : {
168 0 : return rte_bus_probe();
169 : }
170 :
171 : static void
172 0 : bus_scan_2207(void)
173 : {
174 0 : rte_bus_scan();
175 0 : }
176 :
177 : static struct rte_devargs *
178 0 : device_get_devargs_2207(struct rte_device *dev)
179 : {
180 0 : return dev->devargs;
181 : }
182 :
183 : static void
184 0 : device_set_devargs_2207(struct rte_device *dev, struct rte_devargs *devargs)
185 : {
186 0 : dev->devargs = devargs;
187 0 : }
188 :
189 : static const char *
190 0 : device_get_name_2207(struct rte_device *dev)
191 : {
192 0 : return dev->name;
193 : }
194 :
195 : static bool
196 0 : device_scan_allowed_2207(struct rte_device *dev)
197 : {
198 0 : return dev->bus->conf.scan_mode == RTE_BUS_SCAN_ALLOWLIST;
199 : }
200 :
201 : struct dpdk_fn_table fn_table_2207 = {
202 : .pci_device_get_mem_resource = pci_device_get_mem_resource_2207,
203 : .pci_device_get_name = pci_device_get_name_2207,
204 : .pci_device_get_devargs = pci_device_get_devargs_2207,
205 : .pci_device_get_addr = pci_device_get_addr_2207,
206 : .pci_device_get_id = pci_device_get_id_2207,
207 : .pci_device_get_numa_node = pci_device_get_numa_node_2207,
208 : .pci_device_read_config = pci_device_read_config_2207,
209 : .pci_device_write_config = pci_device_write_config_2207,
210 : .pci_driver_register = pci_driver_register_2207,
211 : .pci_device_enable_interrupt = pci_device_enable_interrupt_2207,
212 : .pci_device_disable_interrupt = pci_device_disable_interrupt_2207,
213 : .pci_device_get_interrupt_efd = pci_device_get_interrupt_efd_2207,
214 : .bus_scan = bus_scan_2207,
215 : .bus_probe = bus_probe_2207,
216 : .device_get_devargs = device_get_devargs_2207,
217 : .device_set_devargs = device_set_devargs_2207,
218 : .device_get_name = device_get_name_2207,
219 : .device_scan_allowed = device_scan_allowed_2207,
220 : };
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