FTL: L2P tests

Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I13ce65785a4367ab42f87bf398470d17dc7e9747
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13316
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>

test/unit/lib/ftl/Makefile

@@ -6,7 +6,7 @@
 SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../..)
 include $(SPDK_ROOT_DIR)/mk/spdk.common.mk
 
-DIRS-y = ftl_io.c
+DIRS-y = ftl_l2p ftl_io.c
 DIRS-y += ftl_mempool.c ftl_mngt
 
 .PHONY: all clean $(DIRS-y)

test/unit/lib/ftl/ftl_l2p/.gitignore

@@ -0,0 +1 @@
+ftl_l2p_ut

test/unit/lib/ftl/ftl_l2p/Makefile

@@ -0,0 +1,14 @@
+#  SPDX-License-Identifier: BSD-3-Clause
+#  Copyright (c) Intel Corporation.
+#  All rights reserved.
+#
+
+SPDK_ROOT_DIR := $(abspath $(CURDIR)/../../../../..)
+
+TEST_FILE = ftl_l2p_ut.c
+
+include $(SPDK_ROOT_DIR)/mk/spdk.unittest.mk
+
+CFLAGS += -I$(SPDK_ROOT_DIR)/lib/ftl/utils
+
+CFLAGS += -I$(SPDK_ROOT_DIR)/lib/ftl

test/unit/lib/ftl/ftl_l2p/ftl_l2p_ut.c

@@ -0,0 +1,123 @@
+/*   SPDX-License-Identifier: BSD-3-Clause
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ */
+
+#include "spdk/stdinc.h"
+
+#include "spdk_cunit.h"
+#include "common/lib/test_env.c"
+
+#include "ftl/ftl_core.h"
+
+#define L2P_TABLE_SIZE 1024
+
+static struct spdk_ftl_dev *g_dev;
+
+static struct spdk_ftl_dev *
+test_alloc_dev(size_t size)
+{
+	struct spdk_ftl_dev *dev;
+
+	dev = calloc(1, sizeof(*dev));
+
+	dev->num_lbas = L2P_TABLE_SIZE;
+	dev->l2p = calloc(L2P_TABLE_SIZE, size);
+	dev->layout.l2p.addr_size = size;
+
+	if (size > sizeof(uint32_t)) {
+		dev->layout.base.total_blocks = ~(~0ULL << 33);
+	} else {
+		dev->layout.base.total_blocks = 1024;
+	}
+
+	return dev;
+}
+
+static int
+setup_l2p_64bit(void)
+{
+	g_dev = test_alloc_dev(sizeof(uint64_t));
+	return 0;
+}
+
+static void
+clean_l2p(void)
+{
+	size_t l2p_elem_size;
+
+	if (ftl_addr_packed(g_dev)) {
+		l2p_elem_size = sizeof(uint32_t);
+	} else {
+		l2p_elem_size = sizeof(uint64_t);
+	}
+	memset(g_dev->l2p, 0, g_dev->num_lbas * l2p_elem_size);
+}
+
+static int
+cleanup(void)
+{
+	free(g_dev->l2p);
+	free(g_dev);
+	g_dev = NULL;
+	return 0;
+}
+
+void
+ftl_l2p_set(struct spdk_ftl_dev *dev, uint64_t lba, ftl_addr addr)
+{
+	((uint64_t *)dev->l2p)[lba] = addr;
+}
+
+ftl_addr
+ftl_l2p_get(struct spdk_ftl_dev *dev, uint64_t lba)
+{
+	return ((uint64_t *)dev->l2p)[lba];
+}
+
+static void
+test_addr_cached(void)
+{
+	ftl_addr addr;
+	size_t i;
+
+	/* Set every other LBA is cached */
+	for (i = 0; i < L2P_TABLE_SIZE; i += 2) {
+		addr = ftl_addr_from_nvc_offset(g_dev, i);
+		ftl_l2p_set(g_dev, i, addr);
+	}
+
+	/* Check every even LBA is cached while others are not */
+	for (i = 0; i < L2P_TABLE_SIZE; ++i) {
+		addr = ftl_l2p_get(g_dev, i);
+
+		if (i % 2 == 0) {
+			CU_ASSERT_TRUE(ftl_addr_in_nvc(g_dev, addr));
+			CU_ASSERT_EQUAL(ftl_addr_to_nvc_offset(g_dev, addr), i);
+		} else {
+			CU_ASSERT_FALSE(ftl_addr_in_nvc(g_dev, addr));
+		}
+	}
+	clean_l2p();
+}
+
+int
+main(int argc, char **argv)
+{
+	CU_pSuite suite64 = NULL;
+	unsigned int num_failures;
+
+	CU_set_error_action(CUEA_ABORT);
+	CU_initialize_registry();
+
+	suite64 = CU_add_suite("ftl_addr64_suite", setup_l2p_64bit, cleanup);
+
+	CU_ADD_TEST(suite64, test_addr_cached);
+
+	CU_basic_set_mode(CU_BRM_VERBOSE);
+	CU_basic_run_tests();
+	num_failures = CU_get_number_of_failures();
+	CU_cleanup_registry();
+
+	return num_failures;
+}

test/unit/unittest.sh

@@ -48,6 +48,7 @@ function unittest_ftl() {
 	$valgrind $testdir/lib/ftl/ftl_io.c/ftl_io_ut
 	$valgrind $testdir/lib/ftl/ftl_mngt/ftl_mngt_ut
 	$valgrind $testdir/lib/ftl/ftl_mempool.c/ftl_mempool_ut
+	$valgrind $testdir/lib/ftl/ftl_l2p/ftl_l2p_ut
 }
 
 function unittest_iscsi() {