4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5 * Copyright(c) 2014 6WIND S.A.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * * Neither the name of Intel Corporation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/queue.h>
41 #include <rte_devargs.h>
42 #include <rte_debug.h>
43 #include <rte_devargs.h>
46 #include "eal_private.h"
48 /** Global list of device drivers. */
49 static struct rte_driver_list dev_driver_list =
50 TAILQ_HEAD_INITIALIZER(dev_driver_list);
52 /* register a driver */
54 rte_eal_driver_register(struct rte_driver *driver)
56 TAILQ_INSERT_TAIL(&dev_driver_list, driver, next);
59 /* unregister a driver */
61 rte_eal_driver_unregister(struct rte_driver *driver)
63 TAILQ_REMOVE(&dev_driver_list, driver, next);
67 rte_eal_dev_init(void)
69 struct rte_devargs *devargs;
70 struct rte_driver *driver;
73 * Note that the dev_driver_list is populated here
74 * from calls made to rte_eal_driver_register from constructor functions
75 * embedded into PMD modules via the DRIVER_REGISTER_VDEV macro
78 /* call the init function for each virtual device */
79 TAILQ_FOREACH(devargs, &devargs_list, next) {
81 if (devargs->type != RTE_DEVTYPE_VIRTUAL)
84 if (rte_eal_vdev_init(devargs->virt.drv_name,
86 RTE_LOG(ERR, EAL, "failed to initialize %s device\n",
87 devargs->virt.drv_name);
92 /* Once the vdevs are initalized, start calling all the pdev drivers */
93 TAILQ_FOREACH(driver, &dev_driver_list, next) {
94 if (driver->type != PMD_PDEV)
96 /* PDEV drivers don't get passed any parameters */
97 driver->init(NULL, NULL);
102 int rte_eal_dev_attach(const char *name, const char *devargs)
104 struct rte_pci_addr addr;
106 if (name == NULL || devargs == NULL) {
107 RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
111 if (eal_parse_pci_DomBDF(name, &addr) == 0) {
112 if (rte_eal_pci_probe_one(&addr) < 0)
116 if (rte_eal_vdev_init(name, devargs))
123 RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
127 int rte_eal_dev_detach(const char *name)
129 struct rte_pci_addr addr;
132 RTE_LOG(ERR, EAL, "Invalid device provided.\n");
136 if (eal_parse_pci_DomBDF(name, &addr) == 0) {
137 if (rte_eal_pci_detach(&addr) < 0)
140 if (rte_eal_vdev_uninit(name))
146 RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);