[dpdk-dev] [PATCH v4 17/20] bus/vdev: add device matching field driver

[Gaetan Rivet]

The vdev bus parses a field "driver", matching
a vdev driver name with one passed as follows:

   "bus=vdev,driver=xxxx"

Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com>
---
 drivers/bus/vdev/Makefile |  1 +
 drivers/bus/vdev/vdev.c   | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/vdev/Makefile b/drivers/bus/vdev/Makefile
index 52728833c..db6bee98a 100644
--- a/drivers/bus/vdev/Makefile
+++ b/drivers/bus/vdev/Makefile
@@ -10,6 +10,7 @@ LIB = librte_bus_vdev.a
 
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
 
 # versioning export map
 EXPORT_MAP := rte_bus_vdev_version.map
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 5d77cc369..d0ba1965f 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -417,10 +417,12 @@ vdev_unplug(struct rte_device *dev)
 }
 
 enum vdev_params {
+       RTE_VDEV_PARAMS_DRIVER,
        RTE_VDEV_PARAMS_MAX,
 };
 
 static const char *vdev_params_keys[] = {
+       [RTE_VDEV_PARAMS_DRIVER] = "driver",
        [RTE_VDEV_PARAMS_MAX] = NULL,
 };
 
@@ -429,9 +431,17 @@ vdev_dev_match(const struct rte_device *dev,
               const void *_kvlist)
 {
        const struct rte_kvargs *kvlist = _kvlist;
+       const struct rte_vdev_device *vdev;
 
-       (void) kvlist;
-       (void) dev;
+       if (kvlist == NULL)
+               /* Empty string matches everything. */
+               return 0;
+       vdev = RTE_DEV_TO_VDEV_CONST(dev);
+       /* if any field does not match. */
+       if (rte_kvargs_process(kvlist, "driver",
+               &rte_kvargs_strcmp,
+               (void *)(intptr_t)vdev->device.driver->name))
+               return -1;
        return 0;
 }
 
-- 
2.11.0