bus/vdev: implement unplug operation

Signed-off-by: Jan Blunck <jblunck@infradead.org>

diff --git a/lib/librte_eal/common/eal_common_vdev.c b/lib/librte_eal/common/eal_common_vdev.c
index 9bb7427..baf3c5b 100644 (file)
--- a/lib/librte_eal/common/eal_common_vdev.c
+++ b/lib/librte_eal/common/eal_common_vdev.c
@@ -39,11 +39,13 @@
 #include <sys/queue.h>
 
 #include <rte_eal.h>
+#include <rte_dev.h>
 #include <rte_bus.h>
 #include <rte_vdev.h>
 #include <rte_common.h>
 #include <rte_devargs.h>
 #include <rte_memory.h>
+#include <rte_errno.h>
 
 /** Double linked list of virtual device drivers. */
 TAILQ_HEAD(vdev_device_list, rte_vdev_device);
@@ -354,10 +356,22 @@ vdev_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
        return NULL;
 }
 
+static int
+vdev_unplug(struct rte_device *dev)
+{
+       /*
+        * The virtual bus doesn't support 'unattached' devices so this is
+        * actually equal to hotplugging removal of it.
+        */
+       return rte_vdev_uninit(dev->name);
+}
+
 static struct rte_bus rte_vdev_bus = {
        .scan = vdev_scan,
        .probe = vdev_probe,
        .find_device = vdev_find_device,
+       /* .plug = NULL, see comment on vdev_unplug */
+       .unplug = vdev_unplug,
 };
 
 RTE_REGISTER_BUS(VIRTUAL_BUS_NAME, rte_vdev_bus);