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Spdk/test/unit/lib/ftl/ftl_sb/ftl_sb_ut.c
paul luse a6dbe3721e update Intel copyright notices 
per Intel policy to include file commit date using git cmd
below.  The policy does not apply to non-Intel (C) notices.

git log --follow -C90% --format=%ad --date default <file> | tail -1

and then pull just the 4 digit year from the result.

Intel copyrights were not added to files where Intel either had
no contribution ot the contribution lacked substance (ie license
header updates, formatting changes, etc).  Contribution date used
"--follow -C95%" to get the most accurate date.

Note that several files in this patch didn't end the license/(c)
block with a blank comment line so these were added as the vast
majority of files do have this last blank line.  Simply there for
consistency.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Mellanox Build Bot
2022-11-10 08:28:53 +00:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (C) 2022 Intel Corporation.
* All rights reserved.
*/
#include <sys/queue.h>
#include "spdk/stdinc.h"
#include "spdk_cunit.h"
#include "common/lib/test_env.c"
#include "ftl/ftl_sb.c"
#include "ftl/upgrade/ftl_sb_upgrade.c"
#include "ftl/upgrade/ftl_layout_upgrade.c"
#include "ftl/mngt/ftl_mngt_md.c"
DEFINE_STUB_V(ftl_mngt_fail_step, (struct ftl_mngt_process *mngt));
DEFINE_STUB_V(ftl_mngt_next_step, (struct ftl_mngt_process *mngt));
DEFINE_STUB_V(ftl_md_persist, (struct ftl_md *md));
DEFINE_STUB(ftl_nv_cache_load_state, int, (struct ftl_nv_cache *nv_cache), 0);
DEFINE_STUB_V(ftl_valid_map_load_state, (struct spdk_ftl_dev *dev));
DEFINE_STUB_V(ftl_bands_load_state, (struct spdk_ftl_dev *dev));
DEFINE_STUB(ftl_md_get_region, const struct ftl_layout_region *, (struct ftl_md *md), 0);
DEFINE_STUB_V(ftl_md_restore, (struct ftl_md *md));
DEFINE_STUB(ftl_nv_cache_save_state, int, (struct ftl_nv_cache *nv_cache), 0);
DEFINE_STUB(ftl_mngt_get_step_ctx, void *, (struct ftl_mngt_process *mngt), 0);
DEFINE_STUB_V(ftl_mngt_persist_bands_p2l, (struct ftl_mngt_process *mngt));
DEFINE_STUB_V(ftl_band_init_gc_iter, (struct spdk_ftl_dev *dev));
DEFINE_STUB(ftl_validate_regions, int, (struct spdk_ftl_dev *dev, struct ftl_layout *layout), 0);
DEFINE_STUB_V(ftl_layout_dump, (struct spdk_ftl_dev *dev));
DEFINE_STUB(ftl_layout_setup, int, (struct spdk_ftl_dev *dev), 0);
DEFINE_STUB(ftl_md_create_region_flags, int, (struct spdk_ftl_dev *dev, int region_type), 0);
DEFINE_STUB(ftl_md_create, struct ftl_md *, (struct spdk_ftl_dev *dev, uint64_t blocks,
uint64_t vss_blksz, const char *name, int flags, const struct ftl_layout_region *region), NULL);
DEFINE_STUB(ftl_md_destroy_region_flags, int, (struct spdk_ftl_dev *dev, int region_type), 0);
DEFINE_STUB(ftl_md_destroy_shm_flags, int, (struct spdk_ftl_dev *dev), 0);
DEFINE_STUB_V(ftl_md_destroy, (struct ftl_md *md, int flags));
DEFINE_STUB_V(ftl_mngt_call_process, (struct ftl_mngt_process *mngt,
const struct ftl_mngt_process_desc *process));
DEFINE_STUB(ftl_md_get_buffer, void *, (struct ftl_md *md), NULL);
DEFINE_STUB(ftl_layout_setup_superblock, int, (struct spdk_ftl_dev *dev), 0);
struct spdk_ftl_dev g_dev;
struct ftl_superblock_shm g_sb_shm = {0};
static uint8_t g_sb_buf[FTL_SUPERBLOCK_SIZE] = {0};
struct ftl_region_upgrade_desc p2l_upgrade_desc[0];
struct ftl_region_upgrade_desc nvc_upgrade_desc[0];
struct ftl_region_upgrade_desc band_upgrade_desc[0];
#define TEST_OP 0x1984
#define TEST_REG_BLKS 0x10000
#define TEST_NVC_BLKS 0x1000000;
#define TEST_BASE_BLKS 0x1000000000;
static int
test_setup(void)
{
/* setup a dummy dev: */
g_dev.sb = (void *)g_sb_buf;
g_dev.sb_shm = &g_sb_shm;
g_dev.conf.overprovisioning = TEST_OP;
for (uint64_t n = 0; n < sizeof(g_dev.conf.uuid); n++) {
g_dev.conf.uuid.u.raw[n] = n;
}
g_dev.layout.nvc.total_blocks = TEST_NVC_BLKS;
g_dev.layout.base.total_blocks = TEST_BASE_BLKS;
for (int regno = 0; regno < FTL_LAYOUT_REGION_TYPE_MAX; regno++) {
struct ftl_layout_region *reg = &g_dev.layout.region[regno];
reg->current.blocks = TEST_REG_BLKS;
reg->current.offset = regno * TEST_REG_BLKS;
reg->current.version = FTL_SB_VERSION_CURRENT;
reg->prev.version = FTL_SB_VERSION_CURRENT;
reg->type = regno;
reg->name = "region_test";
reg->bdev_desc = 0;
reg->ioch = 0;
}
return 0;
}
static void
test_setup_sb_ver(uint64_t ver, uint64_t clean)
{
union ftl_superblock_ver *sb = (void *)g_sb_buf;
memset(&g_sb_buf, 0, sizeof(g_sb_buf));
ftl_mngt_init_default_sb(&g_dev, NULL);
if (ver <= FTL_SB_VERSION_3) {
sb->header.magic = FTL_SUPERBLOCK_MAGIC_V2;
}
sb->header.version = ver;
sb->v2.clean = clean;
sb->v3.md_layout_head.type = 0;
sb->v3.md_layout_head.df_next = 0;
sb->header.crc = get_sb_crc(&sb->v3);
}
static void
test_setup_sb_v2(uint64_t clean)
{
test_setup_sb_ver(FTL_SB_VERSION_2, clean);
}
static void
test_setup_sb_v3(uint64_t clean)
{
struct ftl_superblock *sb = (void *)g_sb_buf;
memset(&g_sb_buf, 0, sizeof(g_sb_buf));
ftl_mngt_init_default_sb(&g_dev, NULL);
sb->clean = clean;
sb->header.crc = get_sb_crc(sb);
}
static void
test_sb_crc_v2(void)
{
union ftl_superblock_ver *sb = (void *)g_sb_buf;
uint64_t crc;
/* v2-specific crc: it's not really working */
test_setup_sb_v2(true);
crc = sb->header.crc;
sb->header.crc++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_EQUAL(crc, sb->header.crc);
g_sb_buf[sizeof(struct ftl_superblock_v2)]++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_EQUAL(crc, sb->header.crc);
g_sb_buf[sizeof(g_sb_buf) - 1]++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_EQUAL(crc, sb->header.crc);
sb->header.version += 0x19840514;
sb->v2.seq_id++;
CU_ASSERT_EQUAL(crc, sb->header.crc);
}
static void
test_sb_crc_v3(void)
{
union ftl_superblock_ver *sb = (void *)g_sb_buf;
uint64_t crc;
/* v3 crc: covers the entire buf */
test_setup_sb_v3(true);
crc = sb->header.crc;
sb->header.crc++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_EQUAL(crc, sb->header.crc);
crc = sb->header.crc;
g_sb_buf[sizeof(struct ftl_superblock_v2)]++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_NOT_EQUAL(crc, sb->header.crc);
crc = sb->header.crc;
g_sb_buf[sizeof(g_sb_buf) - 1]++;
sb->header.crc = get_sb_crc(&sb->v3);
CU_ASSERT_NOT_EQUAL(crc, sb->header.crc);
crc = sb->header.crc;
sb->header.version += 500;
sb->v2.seq_id++;
CU_ASSERT_EQUAL(crc, sb->header.crc);
crc = sb->header.crc;
}
static void
test_sb_v3_md_layout(void)
{
struct ftl_superblock_md_region *sb_reg, *sb_reg2;
struct ftl_layout_region *reg;
union ftl_superblock_ver *sb = (void *)g_sb_buf;
ftl_df_obj_id df_next;
uint32_t md_type;
int rc;
test_setup_sb_v3(false);
CU_ASSERT_EQUAL(ftl_superblock_md_layout_is_empty(&sb->v3), true);
/* load failed: empty md list: */
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* create md layout: */
ftl_superblock_md_layout_build(&g_dev);
CU_ASSERT_EQUAL(ftl_superblock_md_layout_is_empty(&sb->v3), false);
/* buf overflow, sb_reg = 1 byte overflow: */
df_next = sb->v3.md_layout_head.df_next;
sb->v3.md_layout_head.df_next = FTL_SUPERBLOCK_SIZE - sizeof(sb->v3.md_layout_head) + 1;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, -EOVERFLOW);
/* buf underflow, sb_reg = -1: */
sb->v3.md_layout_head.df_next = UINTPTR_MAX - (uintptr_t)sb;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, -EOVERFLOW);
/* buf underflow, sb_reg = 2 bytes underflow */
sb->v3.md_layout_head.df_next = UINTPTR_MAX - 1;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, -EOVERFLOW);
/* looping md layout list: */
sb->v3.md_layout_head.df_next = ftl_df_get_obj_id(sb, &sb->v3.md_layout_head);
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
sb->v3.md_layout_head.df_next = df_next;
/* unsupported/fixed md region: */
md_type = sb->v3.md_layout_head.type;
sb->v3.md_layout_head.type = FTL_LAYOUT_REGION_TYPE_SB;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* unsupported/invalid md region: */
sb->v3.md_layout_head.type = FTL_LAYOUT_REGION_TYPE_MAX;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* restore the sb: */
sb->v3.md_layout_head.type = md_type;
/* load succeeded, no prev version found: */
reg = &g_dev.layout.region[md_type];
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT_EQUAL(reg->current.version, reg->prev.version);
CU_ASSERT_NOT_EQUAL(reg->current.sb_md_reg, NULL);
CU_ASSERT_EQUAL(reg->prev.sb_md_reg, NULL);
/* load succeeded, prev (upgrade, i.e. no current) version discovery: */
reg = &g_dev.layout.region[md_type];
sb->v3.md_layout_head.version--;
rc = ftl_superblock_md_layout_load_all(&g_dev);
sb->v3.md_layout_head.version++;
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT_NOT_EQUAL(reg->current.version, reg->prev.version);
CU_ASSERT_EQUAL(reg->current.sb_md_reg, NULL);
CU_ASSERT_NOT_EQUAL(reg->prev.sb_md_reg, NULL);
/* load failed, unknown (newer) version found: */
sb->v3.md_layout_head.df_next = FTL_SUPERBLOCK_SIZE - sizeof(sb->v3.md_layout_head);
sb_reg = ftl_df_get_obj_ptr(sb, sb->v3.md_layout_head.df_next);
rc = superblock_md_layout_add(&g_dev, sb_reg, md_type, FTL_SB_VERSION_CURRENT + 1,
sb->v3.md_layout_head.blk_offs, sb->v3.md_layout_head.blk_sz);
CU_ASSERT_EQUAL(rc, 0);
sb_reg->df_next = df_next;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* load succeeded, prev version discovery: */
sb_reg->version = FTL_SB_VERSION_2;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT_NOT_EQUAL(reg->current.version, reg->prev.version);
CU_ASSERT_EQUAL(reg->current.version, FTL_SB_VERSION_CURRENT);
CU_ASSERT_EQUAL(reg->prev.version, FTL_SB_VERSION_2);
/* looping/multiple (same ver) prev regions found: */
sb_reg->df_next = FTL_SUPERBLOCK_SIZE - 2 * sizeof(sb->v3.md_layout_head);
sb_reg2 = ftl_df_get_obj_ptr(sb, sb_reg->df_next);
rc = superblock_md_layout_add(&g_dev, sb_reg2, md_type, FTL_SB_VERSION_2,
sb->v3.md_layout_head.blk_offs, sb->v3.md_layout_head.blk_sz);
CU_ASSERT_EQUAL(rc, 0);
sb_reg2->df_next = df_next;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* multiple (different ver) prev regions found: */
sb_reg->df_next = FTL_SUPERBLOCK_SIZE - 2 * sizeof(sb->v3.md_layout_head);
sb_reg2 = ftl_df_get_obj_ptr(sb, sb_reg->df_next);
rc = superblock_md_layout_add(&g_dev, sb_reg2, md_type, FTL_SB_VERSION_1,
sb->v3.md_layout_head.blk_offs, sb->v3.md_layout_head.blk_sz);
CU_ASSERT_EQUAL(rc, 0);
sb_reg2->df_next = df_next;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_EQUAL(rc, 0);
/* multiple current regions found: */
sb->v3.md_layout_head.df_next = FTL_SUPERBLOCK_SIZE - sizeof(sb->v3.md_layout_head);
sb_reg2->version = FTL_SB_VERSION_CURRENT;
rc = ftl_superblock_md_layout_load_all(&g_dev);
CU_ASSERT_NOT_EQUAL(rc, 0);
/* restore the sb: */
sb->v3.md_layout_head.df_next = df_next;
}
int
main(int argc, char **argv)
{
CU_pSuite suite = NULL;
unsigned int num_failures;
CU_set_error_action(CUEA_ABORT);
CU_initialize_registry();
suite = CU_add_suite("ftl_sb", test_setup, NULL);
CU_ADD_TEST(suite, test_sb_crc_v2);
CU_ADD_TEST(suite, test_sb_crc_v3);
CU_ADD_TEST(suite, test_sb_v3_md_layout);
CU_basic_set_mode(CU_BRM_VERBOSE);
CU_basic_run_tests();
num_failures = CU_get_number_of_failures();
CU_cleanup_registry();
return num_failures;
}
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