144 lines
5.8 KiB
Python
144 lines
5.8 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# Copyright (c) 2015-2016 Western Digital Corporation or its affiliates.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# Author: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
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#
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"""
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Namespace Format testcase :-
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1. Create, attach, detach, delete primary namespace and
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extract the supported format information from default namespace:-
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- List of the supported format.
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- List of Metadata Size per format. Based on this we calculate
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data protection parameter at the time of namespace.
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- List of LBA Data Size per format.
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2. Use the collected information and iterate through each supported
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format:-
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- Create namespace.
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- Attach namespace.
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- Run IOs on the namespace under test.
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- Detach namespace
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- Delete Namespace.
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"""
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import json
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import math
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import subprocess
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from nvme_test import TestNVMe
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class TestNVMeFormatCmd(TestNVMe):
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"""
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Represents Format testcase.
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- Attributes:
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- dps : data protection information.
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- flabs : LBA format information.
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- nsze : namespace size.
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- ncap : namespace capacity.
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- ctrl_id : controller id.
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- lba_format_list : json list of supported format.
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- test_log_dir : directory for logs, temp files.
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"""
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def setUp(self):
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""" Pre Section for TestNVMeFormatCmd """
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super().setUp()
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self.dps = 0
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self.flbas = 0
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# Assuming run_ns_io with 4KiB * 10 writes.
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# Calculating minimum required ncap for this workload
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(ds, _) = self.get_lba_format_size()
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ncap = int(math.ceil((4096*10)/ds))
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self.ncap = ncap
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self.nsze = ncap
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self.ctrl_id = self.get_ctrl_id()
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self.lba_format_list = []
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self.test_log_dir = self.log_dir + "/" + self.__class__.__name__
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self.setup_log_dir(self.__class__.__name__)
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self.delete_all_ns()
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def tearDown(self):
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"""
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Post Section for TestNVMeFormatCmd
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- Create primary namespace.
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- Attach it to controller.
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- Call super class's destructor.
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"""
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self.assertEqual(self.create_and_validate_ns(self.default_nsid,
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self.nsze,
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self.ncap,
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self.flbas,
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self.dps), 0)
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self.attach_ns(self.ctrl_id, self.default_nsid)
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super().tearDown()
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def attach_detach_primary_ns(self):
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""" Extract supported format information using default namespace """
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self.assertEqual(self.create_and_validate_ns(self.default_nsid,
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self.nsze,
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self.ncap,
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self.flbas,
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self.dps), 0)
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self.assertEqual(self.attach_ns(self.ctrl_id, self.default_nsid), 0)
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# read lbaf information
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id_ns_cmd = f"{self.nvme_bin} id-ns {self.ctrl} " + \
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f"--namespace-id={self.default_nsid} --output-format=json"
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proc = subprocess.Popen(id_ns_cmd,
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shell=True,
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stdout=subprocess.PIPE,
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encoding='utf-8')
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err = proc.wait()
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self.assertEqual(err, 0, "ERROR : nvme id-ns failed")
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json_output = json.loads(proc.stdout.read())
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self.lba_format_list = json_output['lbafs']
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self.assertTrue(len(self.lba_format_list) > 0,
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"ERROR : nvme id-ns could not find any lba formats")
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self.assertEqual(self.detach_ns(self.ctrl_id, self.default_nsid), 0)
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self.assertEqual(self.delete_and_validate_ns(self.default_nsid), 0)
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self.nvme_reset_ctrl()
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def test_format_ns(self):
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""" Testcase main """
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# extract the supported format information.
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self.attach_detach_primary_ns()
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print("##### Testing lba formats:")
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# iterate through all supported format
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for flbas, lba_format in enumerate(self.lba_format_list):
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ds = lba_format['ds']
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ms = lba_format['ms']
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print(f"\nlba format {str(flbas)}"
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f"\nds {str(ds)}"
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f"\nms {str(ms)}")
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dps = 1 if str(ms) == '8' else 0
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err = self.create_and_validate_ns(self.default_nsid,
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self.nsze,
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self.ncap,
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flbas,
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dps)
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self.assertEqual(err, 0)
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self.assertEqual(self.attach_ns(self.ctrl_id, self.default_nsid), 0)
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self.run_ns_io(self.default_nsid, int(ds))
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self.assertEqual(self.detach_ns(self.ctrl_id, self.default_nsid), 0)
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self.assertEqual(self.delete_and_validate_ns(self.default_nsid), 0)
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self.nvme_reset_ctrl()
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