liburing: Test all configurations with NOP test

This runs the NOP test with all four configurations:
- default SQE and CQE size
- large SQE size
- large CQE size
- large SQE and large CQE size

Signed-off-by: Stefan Roesch <shr@fb.com>
Link: https://lore.kernel.org/r/20220425182639.2446370-7-shr@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

test/nop.c

@@ -11,6 +11,7 @@
 #include <fcntl.h>
 
 #include "liburing.h"
+#include "test.h"
 
 static int seq;
 
@@ -127,12 +128,14 @@ err:
 	return 1;
 }
 
-static int test_p(struct io_uring_params *p)
+static int test_ring(unsigned flags)
 {
 	struct io_uring ring;
+	struct io_uring_params p = { };
 	int ret;
 
-	ret = io_uring_queue_init_params(8, &ring, p);
+	p.flags = flags;
+	ret = io_uring_queue_init_params(8, &ring, &p);
 	if (ret) {
 		fprintf(stderr, "ring setup failed: %d\n", ret);
 		return 1;
@@ -150,29 +153,11 @@ static int test_p(struct io_uring_params *p)
 		goto err;
 	}
 
-	io_uring_queue_exit(&ring);
-	return 0;
 err:
 	io_uring_queue_exit(&ring);
 	return ret;
 }
 
-static int test_normal_ring(void)
-{
-	struct io_uring_params p = { };
-
-	return test_p(&p);
-}
-
-static int test_big_ring(void)
-{
-	struct io_uring_params p = { };
-
-	p.flags = IORING_SETUP_SQE128;
-	return test_p(&p);
-}
-
-
 int main(int argc, char *argv[])
 {
 	int ret;
@@ -180,17 +165,15 @@ int main(int argc, char *argv[])
 	if (argc > 1)
 		return 0;
 
-	ret = test_normal_ring();
-	if (ret) {
-		fprintf(stderr, "Normal ring test failed\n");
-		return ret;
-	}
-
-	ret = test_big_ring();
-	if (ret) {
-		fprintf(stderr, "Big ring test failed\n");
-		return ret;
+	FOR_ALL_TEST_CONFIGS {
+		fprintf(stderr, "Testing %s config\n", IORING_GET_TEST_CONFIG_DESCRIPTION());
+		ret = test_ring(IORING_GET_TEST_CONFIG_FLAGS());
+		if (ret) {
+			fprintf(stderr, "Normal ring test failed\n");
+			return ret;
+		}
 	}
 
+	fprintf(stderr, "PASS\n");
 	return 0;
 }

test/test.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Description: Test configs for tests.
+ */
+#ifndef LIBURING_TEST_H
+#define LIBURING_TEST_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct io_uring_test_config {
+	unsigned int flags;
+	const char *description;
+} io_uring_test_config;
+
+io_uring_test_config io_uring_test_configs[] = {
+	{ 0, 						"default" },
+	{ IORING_SETUP_SQE128, 				"large SQE"},
+	{ IORING_SETUP_CQE32, 				"large CQE"},
+	{ IORING_SETUP_SQE128 | IORING_SETUP_CQE32, 	"large SQE/CQE" },
+};
+
+#define FOR_ALL_TEST_CONFIGS							\
+	for (int i = 0; i < sizeof(io_uring_test_configs) / sizeof(io_uring_test_configs[0]); i++)
+
+#define IORING_GET_TEST_CONFIG_FLAGS() (io_uring_test_configs[i].flags)
+#define IORING_GET_TEST_CONFIG_DESCRIPTION() (io_uring_test_configs[i].description)
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif