bus/ifpga: support AFU device search by name

In many scenarios, AFU is needed searched by name, this
function add the feature.

Signed-off-by: Rosen Xu <[email protected]>
Signed-off-by: Andy Pei <[email protected]>

Author: rosen-xu

drivers/bus/ifpga/ifpga_bus.c

@@ -73,6 +73,19 @@ ifpga_find_afu_dev(const struct rte_rawdev *rdev,
 	return NULL;
 }
 
+struct rte_afu_device *
+rte_ifpga_find_afu_by_name(const char *name)
+{
+	struct rte_afu_device *afu_dev = NULL;
+
+	TAILQ_FOREACH(afu_dev, &ifpga_afu_dev_list, next) {
+		if (afu_dev &&
+			!strcmp(afu_dev->device.name, name))
+			return afu_dev;
+	}
+	return NULL;
+}
+
 static const char * const valid_args[] = {
 #define IFPGA_ARG_NAME         "ifpga"
 	IFPGA_ARG_NAME,

drivers/bus/ifpga/rte_bus_ifpga.h

@@ -119,6 +119,15 @@ rte_ifpga_device_name(const struct rte_afu_device *afu)
 	return NULL;
 }
 
+/**
+ * Find AFU by AFU name.
+ *
+ * @param name
+ *   A pointer to AFU name string.
+ */
+struct rte_afu_device *
+rte_ifpga_find_afu_by_name(const char *name);
+
 /**
  * Register a ifpga afu device driver.
  *

drivers/bus/ifpga/rte_bus_ifpga_version.map

@@ -8,3 +8,10 @@ DPDK_18.05 {
 
 	local: *;
 };
+
+DPDK_19.05 {
+	global:
+
+	rte_ifpga_find_afu_by_name;
+
+} DPDK_18.05;