github/ocf
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Cover all read paths with read data integrity test logic

Browse Source 
Extending read test to run in all cachemodes.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
root 2020-07-14 01:33:05 +02:00 committed by Adam Rutkowski
parent fef9d94a10
commit 934ea045fe
1 changed files with 19 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
tests/functional/tests/engine/test_read.py
View File

@ -1,4 +1,3 @@
#
# Copyright(c) 2019-2020 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause-Clear
#
@ -205,15 +204,17 @@ def print_test_case(
# This data pattern is enforced by writing to exported object in the following order:
# 1. writing entire workset with core patern in PT
# 2. writing clean sectors with clean pattern in WT
# 3. writing dirty sectors with dirty pattern in WO
# 3. writing dirty sectors with dirty pattern in WB
#
# Then the verification is simply a matter of issuing a read in selected cache mode
# and verifying that the expected pattern is read from each sector.
#
# Then the verification is simply a matter of issuing a read in WO mode and verifying
# that the expected pattern is read from each sector.
@pytest.mark.parametrize("cacheline_size", CacheLineSize)
@pytest.mark.parametrize("cache_mode", CacheMode)
@pytest.mark.parametrize("rand_seed", [datetime.now()])
def test_wo_read_data_consistency(pyocf_ctx, cacheline_size, rand_seed):
def test_read_data_consistency(pyocf_ctx, cacheline_size, cache_mode, rand_seed):
CACHELINE_COUNT = 9
SECTOR_SIZE = Size.from_sector(1).B
CLS = cacheline_size // SECTOR_SIZE
@ -339,7 +340,7 @@ def test_wo_read_data_consistency(pyocf_ctx, cacheline_size, rand_seed):
)
# write dirty sectors
cache.change_cache_mode(cache_mode=CacheMode.WO)
cache.change_cache_mode(cache_mode=CacheMode.WB)
for sec in sectors:
region = sector_to_region(sec, region_start)
if region_state[region] == SectorStatus.DIRTY:
@ -352,6 +353,8 @@ def test_wo_read_data_consistency(pyocf_ctx, cacheline_size, rand_seed):
IoDir.WRITE,
)
cache.change_cache_mode(cache_mode=cache_mode)
core_device.reset_stats()
# get up to 32 randomly selected pairs of (start,end) sectors
@ -364,14 +367,14 @@ def test_wo_read_data_consistency(pyocf_ctx, cacheline_size, rand_seed):
for start, end in io_ranges:
print_test_case(region_start, region_state, start, end, SECTOR_COUNT, CLS)
# issue WO read
# issue read
START = start * SECTOR_SIZE
END = end * SECTOR_SIZE
size = (end - start + 1) * SECTOR_SIZE
assert 0 == io_to_exp_obj(
core, WORKSET_OFFSET + START, size, result_b, START, IoDir.READ
), "error reading in WO mode: region_state={}, start={}, end={}, insert_order={}".format(
region_state, start, end, insert_order
), "error reading in {}: region_state={}, start={}, end={}, insert_order={}".format(
cache_mode, region_state, start, end, insert_order
)
# verify read data
@ -398,9 +401,10 @@ def test_wo_read_data_consistency(pyocf_ctx, cacheline_size, rand_seed):
sec, region_state, start, end, insert_order
)
# WO is not supposed to clean dirty data
assert (
core_device.get_stats()[IoDir.WRITE] == 0
), "unexpected write to core device, region_state={}, start={}, end={}, insert_order = {}\n".format(
region_state, start, end, insert_order
)
if cache_mode == CacheMode.WO:
# WO is not supposed to clean dirty data
assert (
core_device.get_stats()[IoDir.WRITE] == 0
), "unexpected write to core device, region_state={}, start={}, end={}, insert_order = {}\n".format(
region_state, start, end, insert_order
)