u-boot/test/py/tests/test_mmc_rd.py
Marek Vasut e551979790 test/py: mmc: Add 'mmc read' performance check
Add option to the mmc rd test to check the duration of the
execution of the mmc read command. This allows intercepting
read performance regressions.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-04-09 20:04:05 -04:00

239 lines
7.1 KiB
Python

# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
# Test U-Boot's "mmc read" command. The test reads data from the eMMC or SD
# card, and validates the no errors occurred, and that the expected data was
# read if the test configuration contains a CRC of the expected data.
import pytest
import time
import u_boot_utils
"""
This test relies on boardenv_* to containing configuration values to define
which MMC devices should be tested. For example:
env__mmc_rd_configs = (
{
'fixture_id': 'emmc-boot0',
'is_emmc': True,
'devid': 0,
'partid': 1,
'sector': 0x10,
'count': 1,
},
{
'fixture_id': 'emmc-boot1',
'is_emmc': True,
'devid': 0,
'partid': 2,
'sector': 0x10,
'count': 1,
},
{
'fixture_id': 'emmc-data',
'is_emmc': True,
'devid': 0,
'partid': 0,
'sector': 0x10,
'count': 0x1000,
},
{
'fixture_id': 'sd-mbr',
'is_emmc': False,
'devid': 1,
'partid': None,
'sector': 0,
'count': 1,
'crc32': '8f6ecf0d',
},
{
'fixture_id': 'sd-large',
'is_emmc': False,
'devid': 1,
'partid': None,
'sector': 0x10,
'count': 0x1000,
},
)
"""
def mmc_dev(u_boot_console, is_emmc, devid, partid):
"""Run the "mmc dev" command.
Args:
u_boot_console: A U-Boot console connection.
is_emmc: Whether the device is eMMC
devid: Device ID
partid: Partition ID
Returns:
Nothing.
"""
# Select MMC device
cmd = 'mmc dev %d' % devid
if is_emmc:
cmd += ' %d' % partid
response = u_boot_console.run_command(cmd)
assert 'no card present' not in response
if is_emmc:
partid_response = '(part %d)' % partid
else:
partid_response = ''
good_response = 'mmc%d%s is current device' % (devid, partid_response)
assert good_response in response
@pytest.mark.buildconfigspec('cmd_mmc')
def test_mmc_dev(u_boot_console, env__mmc_rd_config):
"""Test the "mmc dev" command.
Args:
u_boot_console: A U-Boot console connection.
env__mmc_rd_config: The single MMC configuration on which
to run the test. See the file-level comment above for details
of the format.
Returns:
Nothing.
"""
is_emmc = env__mmc_rd_config['is_emmc']
devid = env__mmc_rd_config['devid']
partid = env__mmc_rd_config.get('partid', 0)
# Select MMC device
mmc_dev(u_boot_console, is_emmc, devid, partid)
@pytest.mark.buildconfigspec('cmd_mmc')
def test_mmc_rescan(u_boot_console, env__mmc_rd_config):
"""Test the "mmc rescan" command.
Args:
u_boot_console: A U-Boot console connection.
env__mmc_rd_config: The single MMC configuration on which
to run the test. See the file-level comment above for details
of the format.
Returns:
Nothing.
"""
is_emmc = env__mmc_rd_config['is_emmc']
devid = env__mmc_rd_config['devid']
partid = env__mmc_rd_config.get('partid', 0)
# Select MMC device
mmc_dev(u_boot_console, is_emmc, devid, partid)
# Rescan MMC device
cmd = 'mmc rescan'
response = u_boot_console.run_command(cmd)
assert 'no card present' not in response
@pytest.mark.buildconfigspec('cmd_mmc')
def test_mmc_info(u_boot_console, env__mmc_rd_config):
"""Test the "mmc info" command.
Args:
u_boot_console: A U-Boot console connection.
env__mmc_rd_config: The single MMC configuration on which
to run the test. See the file-level comment above for details
of the format.
Returns:
Nothing.
"""
is_emmc = env__mmc_rd_config['is_emmc']
devid = env__mmc_rd_config['devid']
partid = env__mmc_rd_config.get('partid', 0)
info_device = env__mmc_rd_config['info_device']
info_speed = env__mmc_rd_config['info_speed']
info_mode = env__mmc_rd_config['info_mode']
info_buswidth = env__mmc_rd_config['info_buswidth']
# Select MMC device
mmc_dev(u_boot_console, is_emmc, devid, partid)
# Read MMC device information
cmd = 'mmc info'
response = u_boot_console.run_command(cmd)
good_response = "Device: %s" % info_device
assert good_response in response
good_response = "Bus Speed: %s" % info_speed
assert good_response in response
good_response = "Mode : %s" % info_mode
assert good_response in response
good_response = "Bus Width: %s" % info_buswidth
assert good_response in response
@pytest.mark.buildconfigspec('cmd_mmc')
def test_mmc_rd(u_boot_console, env__mmc_rd_config):
"""Test the "mmc read" command.
Args:
u_boot_console: A U-Boot console connection.
env__mmc_rd_config: The single MMC configuration on which
to run the test. See the file-level comment above for details
of the format.
Returns:
Nothing.
"""
is_emmc = env__mmc_rd_config['is_emmc']
devid = env__mmc_rd_config['devid']
partid = env__mmc_rd_config.get('partid', 0)
sector = env__mmc_rd_config.get('sector', 0)
count_sectors = env__mmc_rd_config.get('count', 1)
expected_crc32 = env__mmc_rd_config.get('crc32', None)
read_duration_max = env__mmc_rd_config.get('read_duration_max', 0)
count_bytes = count_sectors * 512
bcfg = u_boot_console.config.buildconfig
has_cmd_memory = bcfg.get('config_cmd_memory', 'n') == 'y'
has_cmd_crc32 = bcfg.get('config_cmd_crc32', 'n') == 'y'
ram_base = u_boot_utils.find_ram_base(u_boot_console)
addr = '0x%08x' % ram_base
# Select MMC device
mmc_dev(u_boot_console, is_emmc, devid, partid)
# Clear target RAM
if expected_crc32:
if has_cmd_memory and has_cmd_crc32:
cmd = 'mw.b %s 0 0x%x' % (addr, count_bytes)
u_boot_console.run_command(cmd)
cmd = 'crc32 %s 0x%x' % (addr, count_bytes)
response = u_boot_console.run_command(cmd)
assert expected_crc32 not in response
else:
u_boot_console.log.warning(
'CONFIG_CMD_MEMORY or CONFIG_CMD_CRC32 != y: Skipping RAM clear')
# Read data
cmd = 'mmc read %s %x %x' % (addr, sector, count_sectors)
tstart = time.time()
response = u_boot_console.run_command(cmd)
tend = time.time()
good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (
devid, sector, count_sectors, count_sectors)
assert good_response in response
# Check target RAM
if expected_crc32:
if has_cmd_crc32:
cmd = 'crc32 %s 0x%x' % (addr, count_bytes)
response = u_boot_console.run_command(cmd)
assert expected_crc32 in response
else:
u_boot_console.log.warning('CONFIG_CMD_CRC32 != y: Skipping check')
# Check if the command did not take too long
if read_duration_max:
elapsed = tend - tstart
u_boot_console.log.info('Reading %d bytes took %f seconds' %
(count_bytes, elapsed))
assert elapsed <= (read_duration_max - 0.01)