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# SPDX-License-Identifier: GPL-2.0-or-later
#
# This file is part of nvme-cli
#
# Copyright (c) 2022 Samsung Electronics Co., Ltd. All Rights Reserved.
#
# Authors: Arunpandian J <apj.arun@samsung.com>
# Joy Gu <jgu@purestorage.com>
"""
NVMe Copy Testcase:-
1. Issue copy command on set of block; shall pass.
2. If cross-namespace copy formats are supported, enable and test
cross-namespace copy formats.
"""
import subprocess
from nvme_test import TestNVMe
class TestNVMeCopy(TestNVMe):
"""
Represents NVMe Copy testcase.
- Attributes:
- ocfs : optional copy formats supported
- host_behavior_data : host behavior support data to restore during teardown
- test_log_dir : directory for logs, temp files.
"""
def setUp(self):
""" Pre Section for TestNVMeCopy """
super().setUp()
print("\nSetting up test...")
self.ocfs = self.get_ocfs()
cross_namespace_copy = self.ocfs & 0xc
if cross_namespace_copy:
# get host behavior support data
get_features_cmd = ["nvme", "get-feature", self.ctrl, "--feature-id=0x16", "--data-len=512", "-b"]
print("Running command:", " ".join(get_features_cmd))
self.host_behavior_data = subprocess.check_output(get_features_cmd)
# enable cross-namespace copy formats
if self.host_behavior_data[4] & cross_namespace_copy:
# skip if already enabled
print("Cross-namespace copy already enabled, skipping set-features")
self.host_behavior_data = None
else:
data = self.host_behavior_data[:4] + cross_namespace_copy.to_bytes(2, 'little') + self.host_behavior_data[6:]
set_features_cmd = ["nvme", "set-feature", self.ctrl, "--feature-id=0x16", "--data-len=512"]
print("Running command:", " ".join(set_features_cmd))
proc = subprocess.Popen(set_features_cmd,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE)
proc.communicate(input=data)
self.assertEqual(proc.returncode, 0, "Failed to enable cross-namespace copy formats")
get_ns_id_cmd = ["nvme", "get-ns-id", self.ns1]
print("Running command:", " ".join(get_ns_id_cmd))
output = subprocess.check_output(get_ns_id_cmd)
self.ns1_nsid = int(output.decode().strip().split(':')[-1])
self.setup_log_dir(self.__class__.__name__)
def tearDown(self):
""" Post Section for TestNVMeCopy """
print("Tearing down test...")
if self.host_behavior_data:
# restore saved host behavior support data
set_features_cmd = ["nvme", "set-feature", self.ctrl, "--feature-id=0x16", "--data-len=512"]
print("Running command:", " ".join(set_features_cmd))
proc = subprocess.Popen(set_features_cmd,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE)
proc.communicate(input=self.host_behavior_data)
super().tearDown()
def copy(self, sdlba, blocks, slbs, **kwargs):
""" Wrapper for nvme copy
- Args:
- sdlba : destination logical block address
- blocks : number of logical blocks (0-based)
- slbs : source range logical block address
- descriptor_format : copy descriptor format (optional)
- snsids : source namespace id (optional)
- sopts : source options (optional)
- Returns:
- None
"""
# skip if descriptor format not supported (default format is 0)
desc_format = kwargs.get("descriptor_format", 0)
if not self.ocfs & (1 << desc_format):
print(f"Skip copy because descriptor format {desc_format} is not supported")
return
# build copy command
copy_cmd = f"nvme copy {self.ns1} --format={desc_format} --sdlba={sdlba} --blocks={blocks} --slbs={slbs}"
if "snsids" in kwargs:
copy_cmd += f" --snsids={kwargs['snsids']}"
if "sopts" in kwargs:
copy_cmd += f" --sopts={kwargs['sopts']}"
# run and assert success
print("Running command:", copy_cmd)
self.assertEqual(self.exec_cmd(copy_cmd), 0)
def test_copy(self):
""" Testcase main """
print("Running test...")
self.copy(0, 1, 2, descriptor_format=0)
self.copy(0, 1, 2, descriptor_format=1)
self.copy(0, 1, 2, descriptor_format=2, snsids=self.ns1_nsid)
self.copy(0, 1, 2, descriptor_format=2, snsids=self.ns1_nsid, sopts=0)
self.copy(0, 1, 2, descriptor_format=3, snsids=self.ns1_nsid)
self.copy(0, 1, 2, descriptor_format=3, snsids=self.ns1_nsid, sopts=0)
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