4 * Copyright(c) 2016 RehiveTech. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
16 * * Neither the name of RehiveTech nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 #include <sys/queue.h>
42 #include <rte_devargs.h>
44 struct rte_vdev_device {
45 TAILQ_ENTRY(rte_vdev_device) next; /**< Next attached vdev */
46 struct rte_device device; /**< Inherit core device */
49 static inline const char *
50 rte_vdev_device_name(const struct rte_vdev_device *dev)
52 if (dev && dev->device.devargs)
53 return dev->device.devargs->virt.drv_name;
57 /** Double linked list of virtual device drivers. */
58 TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
61 * Probe function called for each virtual device driver once.
63 typedef int (rte_vdev_probe_t)(const char *name, const char *args);
66 * Remove function called for each virtual device driver once.
68 typedef int (rte_vdev_remove_t)(const char *name);
71 * A virtual device driver abstraction.
73 struct rte_vdev_driver {
74 TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
75 struct rte_driver driver; /**< Inherited general driver. */
76 rte_vdev_probe_t *probe; /**< Virtual device probe function. */
77 rte_vdev_remove_t *remove; /**< Virtual device remove function. */
81 * Register a virtual device driver.
84 * A pointer to a rte_vdev_driver structure describing the driver
87 void rte_eal_vdrv_register(struct rte_vdev_driver *driver);
90 * Unregister a virtual device driver.
93 * A pointer to a rte_vdev_driver structure describing the driver
96 void rte_eal_vdrv_unregister(struct rte_vdev_driver *driver);
98 #define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
99 RTE_INIT(vdrvinitfn_ ##vdrv);\
100 static const char *vdrvinit_ ## nm ## _alias;\
101 static void vdrvinitfn_ ##vdrv(void)\
103 (vdrv).driver.name = RTE_STR(nm);\
104 (vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
105 rte_eal_vdrv_register(&vdrv);\
107 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
109 #define RTE_PMD_REGISTER_ALIAS(nm, alias)\
110 static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)