event/octeontx: add selftest to device arguments

Add selftest as a device argument that can be enabled by suppling
'self_test=1' as a vdev parameter

	--vdev="event_octeontx,self_test=1"

The selftest is run after vdev creation is successfully
complete.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>

doc/guides/eventdevs/octeontx.rst

@@ -83,6 +83,19 @@ Example:
 
     ./your_eventdev_application --vdev="event_octeontx"
 
+
+Selftest
+--------
+
+The functionality of octeontx eventdev can be verified using this option,
+various unit and functional tests are run to verify the sanity.
+The tests are run once the vdev creation is successfully complete.
+
+.. code-block:: console
+
+    --vdev="event_octeontx,self_test=1"
+
+
 Limitations
 -----------
 

drivers/event/octeontx/ssovf_evdev.c

@@ -10,6 +10,7 @@
 #include <rte_eal.h>
 #include <rte_ethdev.h>
 #include <rte_event_eth_rx_adapter.h>
+#include <rte_kvargs.h>
 #include <rte_lcore.h>
 #include <rte_log.h>
 #include <rte_malloc.h>
@@ -580,6 +581,15 @@ ssovf_close(struct rte_eventdev *dev)
 	return 0;
 }
 
+static int
+ssovf_selftest(const char *key __rte_unused, const char *value,
+		void *opaque)
+{
+	int *flag = opaque;
+	*flag = !!atoi(value);
+	return 0;
+}
+
 /* Initialize and register event driver with DPDK Application */
 static const struct rte_eventdev_ops ssovf_ops = {
 	.dev_infos_get    = ssovf_info_get,
@@ -617,7 +627,14 @@ ssovf_vdev_probe(struct rte_vdev_device *vdev)
 	struct rte_eventdev *eventdev;
 	static int ssovf_init_once;
 	const char *name;
+	const char *params;
 	int ret;
+	int selftest = 0;
+
+	static const char *const args[] = {
+		SSOVF_SELFTEST_ARG,
+		NULL
+	};
 
 	name = rte_vdev_device_name(vdev);
 	/* More than one instance is not supported */
@@ -626,6 +643,28 @@ ssovf_vdev_probe(struct rte_vdev_device *vdev)
 		return -EINVAL;
 	}
 
+	params = rte_vdev_device_args(vdev);
+	if (params != NULL && params[0] != '\0') {
+		struct rte_kvargs *kvlist = rte_kvargs_parse(params, args);
+
+		if (!kvlist) {
+			ssovf_log_info(
+				"Ignoring unsupported params supplied '%s'",
+				name);
+		} else {
+			int ret = rte_kvargs_process(kvlist,
+					SSOVF_SELFTEST_ARG,
+					ssovf_selftest, &selftest);
+			if (ret != 0) {
+				ssovf_log_err("%s: Error in selftest", name);
+				rte_kvargs_free(kvlist);
+				return ret;
+			}
+		}
+
+		rte_kvargs_free(kvlist);
+	}
+
 	eventdev = rte_event_pmd_vdev_init(name, sizeof(struct ssovf_evdev),
 				rte_socket_id());
 	if (eventdev == NULL) {
@@ -676,6 +715,8 @@ ssovf_vdev_probe(struct rte_vdev_device *vdev)
 			edev->max_event_ports);
 
 	ssovf_init_once = 1;
+	if (selftest)
+		test_eventdev_octeontx();
 	return 0;
 
 error:

drivers/event/octeontx/ssovf_evdev.h

@@ -80,6 +80,8 @@
 #define SSO_GRP_GET_PRIORITY              0x7
 #define SSO_GRP_SET_PRIORITY              0x8
 
+#define SSOVF_SELFTEST_ARG               ("selftest")
+
 /*
  * In Cavium OcteonTX SoC, all accesses to the device registers are
  * implictly strongly ordered. So, The relaxed version of IO operation is