[dpdk-dev] [PATCH v4 7/9] vdev: implement hotplug functionality

[Gaetan Rivet]

Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com>
---
 lib/librte_eal/common/eal_common_vdev.c | 36 +++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_vdev.c 
b/lib/librte_eal/common/eal_common_vdev.c
index 52528ef..22e4640 100644
--- a/lib/librte_eal/common/eal_common_vdev.c
+++ b/lib/librte_eal/common/eal_common_vdev.c
@@ -38,11 +38,13 @@
 #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);
@@ -350,10 +352,44 @@ vdev_find_device(rte_dev_cmp_t cmp, const void *data)
        return NULL;
 }
 
+static struct rte_device *
+vdev_plug(struct rte_devargs *da)
+{
+       struct rte_vdev_device *dev;
+       int ret;
+
+       ret = rte_vdev_init(da->virt.drv_name, da->args);
+       if (ret) {
+               rte_errno = -ret;
+               return NULL;
+       }
+       dev = find_vdev(da->virt.drv_name);
+       return &dev->device;
+}
+
+static int
+vdev_unplug(struct rte_device *dev)
+{
+       struct rte_devargs *da;
+       int ret;
+
+       da = dev->devargs;
+       if (da == NULL) {
+               rte_errno = EINVAL;
+               return -1;
+       }
+       ret = rte_vdev_uninit(da->virt.drv_name);
+       if (ret)
+               rte_errno = -ret;
+       return ret;
+}
+
 static struct rte_bus rte_vdev_bus = {
        .scan = vdev_scan,
        .probe = vdev_probe,
        .find_device = vdev_find_device,
+       .plug = vdev_plug,
+       .unplug = vdev_unplug,
 };
 
 RTE_INIT(rte_vdev_bus_register);
-- 
2.1.4