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test/bdev: Add unit tests for copy IO

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Signed-off-by: Evgeniy Kochetov <evgeniik@nvidia.com>
Change-Id: I54b6a359fc728f9d79878b179ffd028f05d83af9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14345
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Community-CI: Mellanox Build Bot
This commit is contained in:
Evgeniy Kochetov 2022-08-23 20:26:54 +03:00 committed by Tomasz Zawadzki
parent d14afd5000
commit 6c8702ace9
1 changed files with 213 additions and 1 deletions
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214
test/unit/lib/bdev/bdev.c/bdev_ut.c
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@ -86,6 +86,7 @@ stub_destruct(void *ctx)
struct ut_expected_io {
uint8_t type;
uint64_t offset;
uint64_t src_offset;
uint64_t length;
int iovcnt;
struct iovec iov[BDEV_IO_NUM_CHILD_IOV];
@ -139,6 +140,22 @@ ut_alloc_expected_io(uint8_t type, uint64_t offset, uint64_t length, int iovcnt)
return expected_io;
}
static struct ut_expected_io *
ut_alloc_expected_copy_io(uint8_t type, uint64_t offset, uint64_t src_offset, uint64_t length)
{
struct ut_expected_io *expected_io;
expected_io = calloc(1, sizeof(*expected_io));
SPDK_CU_ASSERT_FATAL(expected_io != NULL);
expected_io->type = type;
expected_io->offset = offset;
expected_io->src_offset = src_offset;
expected_io->length = length;
return expected_io;
}
static void
ut_expected_io_set_iov(struct ut_expected_io *expected_io, int pos, void *base, size_t len)
{
@ -293,10 +310,13 @@ stub_submit_request(struct spdk_io_channel *_ch, struct spdk_bdev_io *bdev_io)
CU_ASSERT(expected_io->offset == bdev_io->u.bdev.offset_blocks);
CU_ASSERT(expected_io->length = bdev_io->u.bdev.num_blocks);
if (expected_io->type == SPDK_BDEV_IO_TYPE_COPY) {
CU_ASSERT(expected_io->src_offset == bdev_io->u.bdev.copy.src_offset_blocks);
}
if (expected_io->iovcnt == 0) {
free(expected_io);
/* UNMAP, WRITE_ZEROES and FLUSH don't have iovs, so we can just return now. */
/* UNMAP, WRITE_ZEROES, FLUSH and COPY don't have iovs, so we can just return now. */
return;
}
@ -376,6 +396,7 @@ static bool g_io_types_supported[SPDK_BDEV_NUM_IO_TYPES] = {
[SPDK_BDEV_IO_TYPE_ABORT] = true,
[SPDK_BDEV_IO_TYPE_SEEK_HOLE] = true,
[SPDK_BDEV_IO_TYPE_SEEK_DATA] = true,
[SPDK_BDEV_IO_TYPE_COPY] = true,
};
static void
@ -1087,6 +1108,12 @@ bdev_io_types_test(void)
ut_enable_io_type(SPDK_BDEV_IO_TYPE_WRITE_ZEROES, true);
ut_enable_io_type(SPDK_BDEV_IO_TYPE_WRITE, true);
/* COPY is not supported */
ut_enable_io_type(SPDK_BDEV_IO_TYPE_COPY, false);
rc = spdk_bdev_copy_blocks(desc, io_ch, 128, 0, 128, io_done, NULL);
CU_ASSERT(rc == -ENOTSUP);
ut_enable_io_type(SPDK_BDEV_IO_TYPE_COPY, true);
/* NVME_IO, NVME_IO_MD and NVME_ADMIN are not supported */
ut_enable_io_type(SPDK_BDEV_IO_TYPE_NVME_IO, false);
ut_enable_io_type(SPDK_BDEV_IO_TYPE_NVME_IO_MD, false);
@ -1783,6 +1810,19 @@ bdev_io_boundary_split_test(void)
stub_complete_io(1);
CU_ASSERT(g_io_done == true);
/* Test a COPY. This should also not be split. */
bdev->optimal_io_boundary = 15;
g_io_done = false;
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, 9, 45, 36);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
rc = spdk_bdev_copy_blocks(desc, io_ch, 9, 45, 36, io_done, NULL);
CU_ASSERT(rc == 0);
CU_ASSERT(g_io_done == false);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == 1);
stub_complete_io(1);
CU_ASSERT(g_io_done == true);
CU_ASSERT(TAILQ_EMPTY(&g_bdev_ut_channel->expected_io));
/* Children requests return an error status */
@ -2452,6 +2492,19 @@ bdev_io_max_size_and_segment_split_test(void)
stub_complete_io(1);
CU_ASSERT(g_io_done == true);
/* Test a COPY. This should also not be split. */
g_io_done = false;
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, 9, 45, 36);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
rc = spdk_bdev_copy_blocks(desc, io_ch, 9, 45, 36, io_done, NULL);
CU_ASSERT(rc == 0);
CU_ASSERT(g_io_done == false);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == 1);
stub_complete_io(1);
CU_ASSERT(g_io_done == true);
spdk_put_io_channel(io_ch);
spdk_bdev_close(desc);
free_bdev(bdev);
@ -5989,6 +6042,163 @@ bdev_seek_test(void)
poll_threads();
}
static void
bdev_copy(void)
{
struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc = NULL;
struct spdk_io_channel *ioch;
struct ut_expected_io *expected_io;
uint64_t src_offset, num_blocks;
uint32_t num_completed;
int rc;
spdk_bdev_initialize(bdev_init_cb, NULL);
bdev = allocate_bdev("bdev");
rc = spdk_bdev_open_ext("bdev", true, bdev_ut_event_cb, NULL, &desc);
CU_ASSERT_EQUAL(rc, 0);
SPDK_CU_ASSERT_FATAL(desc != NULL);
CU_ASSERT(bdev == spdk_bdev_desc_get_bdev(desc));
ioch = spdk_bdev_get_io_channel(desc);
SPDK_CU_ASSERT_FATAL(ioch != NULL);
fn_table.submit_request = stub_submit_request;
g_io_exp_status = SPDK_BDEV_IO_STATUS_SUCCESS;
/* First test that if the bdev supports copy, the request won't be split */
bdev->md_len = 0;
bdev->blocklen = 4096;
num_blocks = 512;
src_offset = bdev->blockcnt - num_blocks;
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, 0, src_offset, num_blocks);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
rc = spdk_bdev_copy_blocks(desc, ioch, 0, src_offset, num_blocks, io_done, NULL);
CU_ASSERT_EQUAL(rc, 0);
num_completed = stub_complete_io(1);
CU_ASSERT_EQUAL(num_completed, 1);
/* Check that if copy is not supported it'll fail */
ut_enable_io_type(SPDK_BDEV_IO_TYPE_COPY, false);
rc = spdk_bdev_copy_blocks(desc, ioch, 0, src_offset, num_blocks, io_done, NULL);
CU_ASSERT_EQUAL(rc, -ENOTSUP);
ut_enable_io_type(SPDK_BDEV_IO_TYPE_COPY, true);
spdk_put_io_channel(ioch);
spdk_bdev_close(desc);
free_bdev(bdev);
spdk_bdev_finish(bdev_fini_cb, NULL);
poll_threads();
}
static void
bdev_copy_split_test(void)
{
struct spdk_bdev *bdev;
struct spdk_bdev_desc *desc = NULL;
struct spdk_io_channel *ioch;
struct spdk_bdev_channel *bdev_ch;
struct ut_expected_io *expected_io;
struct spdk_bdev_opts bdev_opts = {};
uint32_t i, num_outstanding;
uint64_t offset, src_offset, num_blocks, max_copy_blocks, num_children;
int rc;
spdk_bdev_get_opts(&bdev_opts, sizeof(bdev_opts));
bdev_opts.bdev_io_pool_size = 512;
bdev_opts.bdev_io_cache_size = 64;
rc = spdk_bdev_set_opts(&bdev_opts);
CU_ASSERT(rc == 0);
spdk_bdev_initialize(bdev_init_cb, NULL);
bdev = allocate_bdev("bdev");
rc = spdk_bdev_open_ext("bdev", true, bdev_ut_event_cb, NULL, &desc);
CU_ASSERT_EQUAL(rc, 0);
SPDK_CU_ASSERT_FATAL(desc != NULL);
CU_ASSERT(bdev == spdk_bdev_desc_get_bdev(desc));
ioch = spdk_bdev_get_io_channel(desc);
SPDK_CU_ASSERT_FATAL(ioch != NULL);
bdev_ch = spdk_io_channel_get_ctx(ioch);
CU_ASSERT(TAILQ_EMPTY(&bdev_ch->io_submitted));
fn_table.submit_request = stub_submit_request;
g_io_exp_status = SPDK_BDEV_IO_STATUS_SUCCESS;
/* Case 1: First test the request won't be split */
num_blocks = 32;
src_offset = bdev->blockcnt - num_blocks;
g_io_done = false;
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, 0, src_offset, num_blocks);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
rc = spdk_bdev_copy_blocks(desc, ioch, 0, src_offset, num_blocks, io_done, NULL);
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT(g_io_done == false);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == 1);
stub_complete_io(1);
CU_ASSERT(g_io_done == true);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == 0);
/* Case 2: Test the split with 2 children requests */
max_copy_blocks = 8;
bdev->max_copy = max_copy_blocks;
num_children = 2;
num_blocks = max_copy_blocks * num_children;
offset = 0;
src_offset = bdev->blockcnt - num_blocks;
g_io_done = false;
for (i = 0; i < num_children; i++) {
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, offset,
src_offset + offset, max_copy_blocks);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
offset += max_copy_blocks;
}
rc = spdk_bdev_copy_blocks(desc, ioch, 0, src_offset, num_blocks, io_done, NULL);
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT(g_io_done == false);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == num_children);
stub_complete_io(num_children);
CU_ASSERT(g_io_done == true);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == 0);
/* Case 3: Test the split with 15 children requests, will finish 8 requests first */
num_children = 15;
num_blocks = max_copy_blocks * num_children;
offset = 0;
src_offset = bdev->blockcnt - num_blocks;
g_io_done = false;
for (i = 0; i < num_children; i++) {
expected_io = ut_alloc_expected_copy_io(SPDK_BDEV_IO_TYPE_COPY, offset,
src_offset + offset, max_copy_blocks);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
offset += max_copy_blocks;
}
rc = spdk_bdev_copy_blocks(desc, ioch, 0, src_offset, num_blocks, io_done, NULL);
CU_ASSERT_EQUAL(rc, 0);
CU_ASSERT(g_io_done == false);
while (num_children > 0) {
num_outstanding = spdk_min(num_children, SPDK_BDEV_MAX_CHILDREN_COPY_REQS);
CU_ASSERT(g_bdev_ut_channel->outstanding_io_count == num_outstanding);
stub_complete_io(num_outstanding);
num_children -= num_outstanding;
}
CU_ASSERT(g_io_done == true);
spdk_put_io_channel(ioch);
spdk_bdev_close(desc);
free_bdev(bdev);
spdk_bdev_finish(bdev_fini_cb, NULL);
poll_threads();
}
int
main(int argc, char **argv)
{
@ -6049,6 +6259,8 @@ main(int argc, char **argv)
CU_ADD_TEST(suite, bdev_unregister_by_name);
CU_ADD_TEST(suite, for_each_bdev_test);
CU_ADD_TEST(suite, bdev_seek_test);
CU_ADD_TEST(suite, bdev_copy);
CU_ADD_TEST(suite, bdev_copy_split_test);
allocate_cores(1);
allocate_threads(1);