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# Copyright (c) 2015-2016 Western Digital Corporation or its affiliates.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Author: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
#
"""
Namespace Format testcase :-
1. Create, attach, detach, delete primary namespace and
extract the supported format information from default namespace:-
- List of the supported format.
- List of Metadata Size per format. Based on this we calculate
data protection parameter at the time of namespace.
- List of LBA Data Size per format.
2. Use the collected information and iterate through each supported
format:-
- Create namespace.
- Attach namespace.
- Run IOs on the namespace under test.
- Detach namespace
- Delete Namespace.
"""
import subprocess
import time
from nose.tools import assert_equal
from nvme_test import TestNVMe
class TestNVMeFormatCmd(TestNVMe):
"""
Represents Format testcase.
- Attributes:
- dps : data protection information.
- flabs : LBA format information.
- nsze : namespace size.
- ncap : namespace capacity.
- ctrl_id : controller id.
- lba_format_list : lis of supported format.
- ms_list : list of metadat size per format.
- lbads_list : list of LBA data size per format.
- test_log_dir : directory for logs, temp files.
"""
def __init__(self):
""" Pre Section for TestNVMeFormatCmd """
TestNVMe.__init__(self)
self.dps = 0 # ns data protection settings
self.flbas = 0 # ns formattes logical block settings
self.nsze = 0x1400000 # ns size
self.ncap = 0x1400000 # ns capacity
self.ctrl_id = self.get_ctrl_id()
self.lba_format_list = []
self.ms_list = []
self.lbads_list = []
self.test_log_dir = self.log_dir + "/" + self.__class__.__name__
self.setup_log_dir(self.__class__.__name__)
self.delete_all_ns()
time.sleep(1)
def __del__(self):
"""
Post Section for TestNVMeFormatCmd
- Create primary namespace.
- Atttach it to controller.
- Call super class's destructor.
"""
assert_equal(self.create_and_validate_ns(self.default_nsid,
self.nsze,
self.ncap,
self.flbas,
self.dps), 0)
self.attach_ns(self.ctrl_id, self.default_nsid)
TestNVMe.__del__(self)
def attach_detach_primary_ns(self):
""" Extract supported format information using default namespace """
assert_equal(self.create_and_validate_ns(self.default_nsid,
self.nsze,
self.ncap,
self.flbas,
self.dps), 0)
assert_equal(self.attach_ns(self.ctrl_id, self.default_nsid), 0)
# read lbaf information
id_ns = "nvme id-ns " + self.ctrl + \
" -n1 | grep ^lbaf | awk '{print $2}' | tr -s \"\\n\" \" \""
proc = subprocess.Popen(id_ns, shell=True, stdout=subprocess.PIPE,
encoding='utf-8')
self.lba_format_list = proc.stdout.read().strip().split(" ")
if proc.wait() == 0:
# read lbads information
id_ns = "nvme id-ns " + self.ctrl + \
" -n1 | grep ^lbaf | awk '{print $5}'" + \
" | cut -f 2 -d ':' | tr -s \"\\n\" \" \""
proc = subprocess.Popen(id_ns, shell=True, stdout=subprocess.PIPE,
encoding='utf-8')
self.lbads_list = proc.stdout.read().strip().split(" ")
# read metadata information
id_ns = "nvme id-ns " + self.ctrl + \
" -n1 | grep ^lbaf | awk '{print $4}'" + \
" | cut -f 2 -d ':' | tr -s \"\\n\" \" \""
proc = subprocess.Popen(id_ns, shell=True, stdout=subprocess.PIPE,
encoding='utf-8')
self.ms_list = proc.stdout.read().strip().split(" ")
assert_equal(self.detach_ns(self.ctrl_id, self.default_nsid), 0)
assert_equal(self.delete_and_validate_ns(self.default_nsid), 0)
self.nvme_reset_ctrl()
def test_format_ns(self):
""" Testcase main """
# extract the supported format information.
self.attach_detach_primary_ns()
# iterate through all supported format
for i in range(0, len(self.lba_format_list)):
print("\nlba format " + str(self.lba_format_list[i]) +
" lbad " + str(self.lbads_list[i]) +
" ms " + str(self.ms_list[i]))
metadata_size = 1 if self.ms_list[i] == '8' else 0
err = self.create_and_validate_ns(self.default_nsid,
self.nsze,
self.ncap,
self.lba_format_list[i],
metadata_size)
assert_equal(err, 0)
assert_equal(self.attach_ns(self.ctrl_id, self.default_nsid), 0)
self.run_ns_io(self.default_nsid, self.lbads_list[i])
time.sleep(5)
assert_equal(self.detach_ns(self.ctrl_id, self.default_nsid), 0)
assert_equal(self.delete_and_validate_ns(self.default_nsid), 0)
self.nvme_reset_ctrl()
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