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UT/bdev: add unmap UT to cover the split case

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Change-Id: I902c9ce113cfbb2549ecb720951403496dec6d06
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7579
Community-CI: Broadcom CI
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Changpeng Liu 2021-04-24 00:49:40 +08:00 committed by Tomasz Zawadzki
parent 218d6ac8cc
commit d0b4deab2b
1 changed files with 101 additions and 0 deletions
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101
test/unit/lib/bdev/bdev.c/bdev_ut.c
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@ -4262,6 +4262,106 @@ bdev_io_abort(void)
poll_threads();
}
static void
bdev_unmap(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, num_blocks, max_unmap_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;
g_io_done = false;
expected_io = ut_alloc_expected_io(SPDK_BDEV_IO_TYPE_UNMAP, 0, num_blocks, 0);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
rc = spdk_bdev_unmap_blocks(desc, ioch, 0, 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 */
bdev->max_unmap = 8;
bdev->max_unmap_segments = 2;
max_unmap_blocks = bdev->max_unmap * bdev->max_unmap_segments;
num_blocks = max_unmap_blocks * 2;
offset = 0;
g_io_done = false;
for (i = 0; i < 2; i++) {
expected_io = ut_alloc_expected_io(SPDK_BDEV_IO_TYPE_UNMAP, offset, max_unmap_blocks, 0);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
offset += max_unmap_blocks;
}
rc = spdk_bdev_unmap_blocks(desc, ioch, 0, 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 == 2);
stub_complete_io(2);
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_unmap_blocks * num_children;
g_io_done = false;
offset = 0;
for (i = 0; i < num_children; i++) {
expected_io = ut_alloc_expected_io(SPDK_BDEV_IO_TYPE_UNMAP, offset, max_unmap_blocks, 0);
TAILQ_INSERT_TAIL(&g_bdev_ut_channel->expected_io, expected_io, link);
offset += max_unmap_blocks;
}
rc = spdk_bdev_unmap_blocks(desc, ioch, 0, 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_UNMAP_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();
}
static void
bdev_set_options_test(void)
{
@ -4338,6 +4438,7 @@ main(int argc, char **argv)
CU_ADD_TEST(suite, lock_lba_range_with_io_outstanding);
CU_ADD_TEST(suite, lock_lba_range_overlapped);
CU_ADD_TEST(suite, bdev_io_abort);
CU_ADD_TEST(suite, bdev_unmap);
CU_ADD_TEST(suite, bdev_set_options_test);
allocate_cores(1);