[dpdk-dev,v8,06/14] bus: add helper to find which bus holds a device
Checks
Commit Message
Signed-off-by: Jan Blunck <jblunck@infradead.org>
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 +
lib/librte_eal/common/eal_common_bus.c | 23 +++++++++++++++++++++++
lib/librte_eal/common/include/rte_bus.h | 5 +++++
lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 +
4 files changed, 30 insertions(+)
@@ -198,5 +198,6 @@ DPDK_17.08 {
global:
rte_bus_find;
+ rte_bus_find_by_device;
} DPDK_17.05;
@@ -164,3 +164,26 @@ rte_bus_find(const struct rte_bus *start, rte_bus_cmp_t cmp,
}
return bus;
}
+
+static int
+cmp_rte_device(const struct rte_device *dev1, const void *_dev2)
+{
+ const struct rte_device *dev2 = _dev2;
+
+ return dev1 != dev2;
+}
+
+static int
+bus_find_device(const struct rte_bus *bus, const void *_dev)
+{
+ struct rte_device *dev;
+
+ dev = bus->find_device(NULL, cmp_rte_device, _dev);
+ return dev == NULL;
+}
+
+struct rte_bus *
+rte_bus_find_by_device(const struct rte_device *dev)
+{
+ return rte_bus_find(NULL, bus_find_device, (const void *)dev);
+}
@@ -210,6 +210,11 @@ struct rte_bus *rte_bus_find(const struct rte_bus *start, rte_bus_cmp_t cmp,
const void *data);
/**
+ * Find the registered bus for a particular device.
+ */
+struct rte_bus *rte_bus_find_by_device(const struct rte_device *dev);
+
+/**
* Helper for Bus registration.
* The constructor has higher priority than PMD constructors.
*/
@@ -203,5 +203,6 @@ DPDK_17.08 {
global:
rte_bus_find;
+ rte_bus_find_by_device;
} DPDK_17.05;