bus/vdev: implement method to find device

[dpdk.git] / lib / librte_eal / common / eal_common_vdev.c

diff --git a/lib/librte_eal/common/eal_common_vdev.c b/lib/librte_eal/common/eal_common_vdev.c
index e436dac..9bb7427 100644 (file)
--- a/lib/librte_eal/common/eal_common_vdev.c
+++ b/lib/librte_eal/common/eal_common_vdev.c
@@ -35,6 +35,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <stdbool.h>
 #include <sys/queue.h>
 
 #include <rte_eal.h>
@@ -52,20 +53,16 @@ static struct vdev_device_list vdev_device_list =
 struct vdev_driver_list vdev_driver_list =
        TAILQ_HEAD_INITIALIZER(vdev_driver_list);
 
-static void rte_vdev_bus_register(void);
-
 /* register a driver */
 void
-rte_eal_vdrv_register(struct rte_vdev_driver *driver)
+rte_vdev_register(struct rte_vdev_driver *driver)
 {
-       rte_vdev_bus_register();
-
        TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
 }
 
 /* unregister a driver */
 void
-rte_eal_vdrv_unregister(struct rte_vdev_driver *driver)
+rte_vdev_unregister(struct rte_vdev_driver *driver)
 {
        TAILQ_REMOVE(&vdev_driver_list, driver, next);
 }
@@ -194,7 +191,7 @@ alloc_devargs(const char *name, const char *args)
 }
 
 int
-rte_eal_vdev_init(const char *name, const char *args)
+rte_vdev_init(const char *name, const char *args)
 {
        struct rte_vdev_device *dev;
        struct rte_devargs *devargs;
@@ -257,7 +254,7 @@ vdev_remove_driver(struct rte_vdev_device *dev)
 }
 
 int
-rte_eal_vdev_uninit(const char *name)
+rte_vdev_uninit(const char *name)
 {
        struct rte_vdev_device *dev;
        struct rte_devargs *devargs;
@@ -338,21 +335,29 @@ vdev_probe(void)
        return 0;
 }
 
+static struct rte_device *
+vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
+                const void *data)
+{
+       struct rte_vdev_device *dev;
+       bool start_found = !start;
+
+       TAILQ_FOREACH(dev, &vdev_device_list, next) {
+               if (start_found == 0) {
+                       if (&dev->device == start)
+                               start_found = 1;
+                       continue;
+               }
+               if (cmp(&dev->device, data) == 0)
+                       return &dev->device;
+       }
+       return NULL;
+}
+
 static struct rte_bus rte_vdev_bus = {
        .scan = vdev_scan,
        .probe = vdev_probe,
+       .find_device = vdev_find_device,
 };
 
-RTE_INIT(rte_vdev_bus_register);
-
-static void rte_vdev_bus_register(void)
-{
-       static int registered;
-
-       if (registered)
-               return;
-
-       registered = 1;
-       rte_vdev_bus.name = RTE_STR(virtual);
-       rte_bus_register(&rte_vdev_bus);
-}
+RTE_REGISTER_BUS(VIRTUAL_BUS_NAME, rte_vdev_bus);