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driver_test.py
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driver_test.py
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#
# BSD LICENSE
#
# Copyright (c) Crane Che <[email protected]>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# -*- coding: utf-8 -*-
import os
import time
import pytest
import logging
import warnings
import nvme as d
import nvme # test double import
@pytest.mark.skip("nvme over tcp")
def test_nvme_tcp_basic():
c = d.Controller(b'127.0.0.1')
n = d.Namespace(c, 1)
test_get_identify_quick(c, n)
del n
del c
def test_create_device(nvme0, nvme0n1):
assert nvme0 is not None
def test_create_device_invalid():
with pytest.raises(d.NvmeEnumerateError):
nvme1 = d.Controller(b"00:00.0")
def test_create_device_again(nvme0):
# """docstring cuts all tests below."""
with pytest.raises(d.NvmeEnumerateError):
d.Controller(b"10:00.0")
@pytest.mark.parametrize("shift", range(1, 8))
def test_qpair_different_size(nvme0n1, nvme0, shift):
size = 1 << shift
logging.info("create io queue size %d" % size)
d.Qpair(nvme0, size)
nvme0.getfeatures(7).waitdone()
def test_get_identify_quick(nvme0, nvme0n1):
logging.info("vid: 0x%x" % nvme0.id_data(1, 0))
logging.info("ssvid: 0x%x" % nvme0.id_data(3, 2))
logging.info("serial number: %s" % nvme0.id_data(23, 4, str))
logging.info("model number: %s" % nvme0.id_data(63, 24, str))
logging.info("firmware revision: %s" % nvme0.id_data(71, 64, str))
logging.info("namespace size: %d" % nvme0n1.id_data(7, 0))
logging.info("namespace capacity: %d" % nvme0n1.id_data(15, 8))
logging.info("namespace utilization: %d" % nvme0n1.id_data(23, 16))
assert nvme0n1.id_data(7, 0) == nvme0n1.id_data(15, 8)
assert nvme0.id_data(63, 24, str)[0] != 0
def test_get_identify(nvme0, nvme0n1):
logging.info("controller data")
id_buf = d.Buffer(4096, 'identify buffer')
assert id_buf[0] == 0
nvme0.identify(id_buf, 0, 1)
nvme0.waitdone()
assert id_buf[0] != 0
assert id_buf[0] == nvme0.id_data(0, 0)
logging.info("namespace data")
id_buf = d.Buffer(4096, 'identify buffer')
assert id_buf[0] == 0
nvme0.identify(id_buf, 1, 0)
nvme0.waitdone()
assert id_buf[0] != 0
assert id_buf[0] == nvme0n1.id_data(0)
assert nvme0.id_data(4, 0) != nvme0n1.id_data(4, 0)
assert nvme0n1.id_data(8, 5) != nvme0n1.id_data(4, 0)
assert nvme0n1.id_data(7, 0) == nvme0n1.id_data(15, 8)
assert nvme0n1.id_data(23, 16) == nvme0n1.id_data(15, 8)
logging.info("active namespace id data")
id_buf = d.Buffer(4096, 'identify buffer')
assert id_buf[0] == 0
nvme0.identify(id_buf, 0, 2)
nvme0.waitdone()
assert id_buf[0] != 0
logging.info("wrong namespace data")
with pytest.warns(UserWarning, match="ERROR status: 00/0b"):
nvme0.identify(id_buf, 0, 0).waitdone()
logging.info("wrong active namespace nsid")
with pytest.warns(UserWarning, match="ERROR status: 00/0b"):
nvme0.identify(id_buf, 0xffffffff, 2).waitdone()
logging.info("wrong namespace nsid")
with pytest.warns(UserWarning, match="ERROR status: 00/0b"):
nvme0.identify(id_buf, 0xffffff, 0).waitdone()
def test_get_identify_more(nvme0, nvme0n1):
logging.info("common namespace data")
id_buf = d.Buffer(4096, 'identify buffer')
assert id_buf[0] == 0
nvme0.identify(id_buf, 0xffffffff, 0)
nvme0.waitdone()
assert id_buf[0] != 0
def test_get_pcie_config_class_code(nvme0):
p = d.Pcie(nvme0)
assert p[9:12] == [2, 8, 1]
def test_get_pcie_registers(pcie):
vid = pcie.register(0, 2)
did = pcie.register(2, 2)
logging.info("vid %x, did %x" % (vid, did))
def test_pcie_capability_d3hot(pcie):
assert None == pcie.cap_offset(2)
# get pm register
assert None != pcie.cap_offset(1)
pm_offset = pcie.cap_offset(1)
pmcs = pcie[pm_offset+4]
logging.info("pmcs %x" % pmcs)
# set d3hot
pcie[pm_offset+4] = pmcs|3 #D3hot
pmcs = pcie[pm_offset+4]
logging.info("pmcs %x" % pmcs)
# and exit d3hot
time.sleep(1)
pcie[pm_offset+4] = pmcs&0xfc #D0
pmcs = pcie[pm_offset+4]
logging.info("pmcs %x" % pmcs)
def test_get_nvme_register_vs(nvme0):
cid = nvme0[0x08]
assert cid == 0x010200 or cid == 0x010100 or cid == 0x010300
def test_get_lba_format(nvme0n1):
assert nvme0n1.get_lba_format() == nvme0n1.get_lba_format(512, 0)
assert nvme0n1.get_lba_format(4096, 0) != nvme0n1.get_lba_format(512, 0)
assert nvme0n1.get_lba_format(4097, 0) == None
assert nvme0n1.get_lba_format() < 16
def test_enable_and_disable_hmb(nvme0):
# setfeatures on hmb
hmb_size = nvme0.id_data(275, 272)
hmb_list_buf = d.Buffer(4096)
if hmb_size == 0:
return
# for hmb setfeatures commands
buf = d.Buffer(4096)
hmb_status = 0
def cb(cdw0, status):
nonlocal hmb_status
hmb_status = cdw0
# disable hmb
nvme0.setfeatures(0x0d, 0).waitdone()
# getfeatures of hmb to check
nvme0.getfeatures(0x0d, buf=buf, cb=cb).waitdone()
logging.info(f"hmb status: {buf[0:16]}")
assert hmb_status == 0
#one buffer, one entry in the list
hmb_buf = d.Buffer(4096*hmb_size)
hmb_list_buf[0:8] = hmb_buf.phys_addr.to_bytes(8, 'little')
hmb_list_buf[8:12] = hmb_size.to_bytes(4, 'little')
hmb_list_phys = hmb_list_buf.phys_addr
nvme0.setfeatures(0x0d, 1, hmb_size,
hmb_list_phys&0xffffffff,
hmb_list_phys>>32, 1).waitdone()
# getfeatures of hmb to check
nvme0.getfeatures(0x0d, buf=buf, cb=cb).waitdone()
logging.info(f"hmb status: {buf[0:16]}")
assert hmb_status == 1
# disable hmb
nvme0.setfeatures(0x0d, 0).waitdone()
# getfeatures of hmb to check
nvme0.getfeatures(0x0d, buf=buf, cb=cb).waitdone()
logging.info(f"hmb status: {buf[0:16]}")
assert hmb_status == 0
# enable
nvme0.enable_hmb()
# getfeatures of hmb to check
nvme0.getfeatures(0x0d, buf=buf, cb=cb).waitdone()
logging.info(f"hmb status: {buf[0:16]}")
assert hmb_status == 1
# disable hmb
nvme0.disable_hmb()
# getfeatures of hmb to check
nvme0.getfeatures(0x0d, buf=buf, cb=cb).waitdone()
logging.info(f"hmb status: {buf[0:16]}")
assert hmb_status == 0
def test_write_identify_and_verify(nvme0, nvme0n1):
id_buf = d.Buffer(4096)
nvme0.identify(id_buf)
nvme0.waitdone()
assert id_buf[0] != 0
# explict allocate resource when not using fixture
q = d.Qpair(nvme0, 20)
n = nvme0n1
nvme0.format(nvme0n1.get_lba_format(512, 0)).waitdone()
n.write(q, id_buf, 5, 8)
q.waitdone()
read_buf = d.Buffer(4096, "read buffer")
n.read(q, read_buf, 5, 8)
q.waitdone()
assert id_buf[:10] == read_buf[:10]
id_buf[0] += 1
n.write(q, id_buf, 5, 8).waitdone()
n.read(q, read_buf, 5, 8).waitdone()
assert id_buf[:10] == read_buf[:10]
logging.info("test end")
def test_write_identify_and_verify_with_callback(nvme0, nvme0n1):
id_buf = d.Buffer(4096)
nvme0.identify(id_buf).waitdone()
q = d.Qpair(nvme0, 20)
n = nvme0n1
read_buf = d.Buffer(4096, "read buffer")
def read_cb(cdw0, status):
assert id_buf[:40] == read_buf[:40]
def write_cb(cdw0, status):
n.read(q, read_buf, 5, 8, cb=read_cb)
n.write(q, id_buf, 5, 8, cb=write_cb).waitdone(2)
id_buf[0] += 1
n.write(q, id_buf, 5, 8, cb=write_cb).waitdone(2)
id_buf[9] = (id_buf[9] >> 1)
n.write(q, id_buf, 5, 8, cb=write_cb).waitdone(2)
def test_io_waitdone_many_command(nvme0, nvme0n1):
id_buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
nvme0n1.write(q, id_buf, 5, 8)
q.waitdone()
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
q.waitdone()
q.waitdone()
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
q.waitdone(2)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
q.waitdone(2)
q.waitdone(3)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
q.waitdone(5)
assert True
def test_write_and_flush(nvme0, nvme0n1):
id_buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
nvme0n1.flush(q)
q.waitdone(1)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.flush(q)
q.waitdone(2)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.write(q, id_buf, 5, 8)
nvme0n1.flush(q)
q.waitdone(6)
def test_write_zeroes(nvme0, nvme0n1):
if not nvme0n1.supports(0x08):
return
q = d.Qpair(nvme0, 8)
buf = d.Buffer(4096)
buf[0] = 0x5a
nvme0n1.write(q, buf, 8, 8)
q.waitdone()
nvme0n1.read(q, buf, 8, 8)
q.waitdone()
assert buf[0] != 0
nvme0n1.write_zeroes(q, 8, 8)
q.waitdone()
nvme0n1.read(q, buf, 8, 8)
q.waitdone()
assert buf[0] == 0
buf[0] = 0x5a
buf[512*7] = 0x5a
nvme0n1.write(q, buf, 8, 8)
q.waitdone()
nvme0n1.read(q, buf, 8, 8)
q.waitdone()
assert buf[0] != 0
nvme0n1.read(q, buf, 15, 1)
q.waitdone()
assert buf[0] != 0
logging.info("write zeroes 4KB-512, partial 4KB")
nvme0n1.write_zeroes(q, 8, 7)
q.waitdone()
nvme0n1.read(q, buf, 8, 7)
q.waitdone()
assert buf[0] == 0
nvme0n1.read(q, buf, 15, 1)
q.waitdone()
assert buf[0] != 0
def test_write_and_compare(nvme0, nvme0n1):
q = d.Qpair(nvme0, 8)
buf = d.Buffer(4096)
#Check if support compare command
compare_support = nvme0.id_data(521, 520) & 0x1
if compare_support == 0:
pytest.skip("Not support compare command!")
logging.info("write zeroes and then compare")
nvme0n1.write_zeroes(q, 0, 8).waitdone()
nvme0n1.compare(q, buf, 0, 8).waitdone()
logging.info("write something and compare")
buf[0] = 77
nvme0n1.write(q, buf, 0, 8).waitdone()
nvme0n1.compare(q, buf, 0, 8).waitdone()
logging.info("read and then compare")
nvme0n1.read(q, buf, 0, 8).waitdone()
nvme0n1.compare(q, buf, 0, 8).waitdone()
logging.info("modify and then compare, should fail")
with pytest.warns(UserWarning, match="ERROR status: 02/85"):
buf[0] = 99
nvme0n1.compare(q, buf, 0, 8).waitdone()
def test_dsm_trim_and_read(nvme0, nvme0n1):
empty_buf = d.Buffer(4096)
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
#Check if support compare command
compare_support = nvme0.id_data(521, 520) & 0x1
if compare_support == 0:
pytest.skip("Not support compare command!")
# write lba 0
buf[10] = 1
nvme0n1.write(q, buf, 0, 8).waitdone()
# verify data, non empty
logging.info("compare")
with pytest.warns(UserWarning, match="ERROR status: 02/85"):
nvme0n1.compare(q, empty_buf, 0, 8).waitdone()
# trim lba 0
logging.info("trim lba 0")
buf.set_dsm_range(0, 0, 8)
nvme0n1.dsm(q, buf, 1).waitdone()
@pytest.mark.parametrize("lbaf", range(2))
def test_format_basic(nvme0, nvme0n1, lbaf):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
logging.info("format all namespace")
with pytest.warns(UserWarning, match="drive timeout:"):
nvme0.format(nvme0n1.get_lba_format(512, 0), ses=1).waitdone()
nvme0n1.read(q, buf, 0, 1).waitdone()
logging.info("crypto secure erase one namespace")
with pytest.warns(UserWarning, match="ERROR status:"):
nvme0.format(nvme0n1.get_lba_format(512, 0), ses=2).waitdone()
logging.info("invalid format")
with pytest.warns(UserWarning, match="ERROR status:"):
nvme0.format(nvme0n1.get_lba_format(512, 0), ses=3).waitdone()
logging.info("invalid nsid")
with pytest.warns(UserWarning, match="ERROR status: 00/0b"):
nvme0.format(nvme0n1.get_lba_format(512, 0), 0, 0).waitdone()
nvme0n1.read(q, buf, 0, 1).waitdone()
logging.info("format all namespace")
nvme0.format(nvme0n1.get_lba_format(512, 0)).waitdone()
nvme0n1.read(q, buf, 1, 1).waitdone()
assert buf[0] == 0
def test_dsm_deallocate_one_tu(nvme0, nvme0n1):
buf = d.Buffer(4096)
read_buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
logging.info("write init data")
nvme0n1.write(q, buf, 8, 8).waitdone()
nvme0n1.read(q, buf, 8, 8).waitdone()
assert buf[0] != 0
orig_data = buf[0]
logging.info("trim and read")
buf.set_dsm_range(0, 8, 8)
nvme0n1.dsm(q, buf, 1).waitdone()
nvme0n1.read(q, buf, 8, 8).waitdone()
assert buf[0] == 0 or buf[0] == orig_data
@pytest.mark.parametrize("size", [4096, 10, 4096*2])
@pytest.mark.parametrize("offset", [4096, 10, 4096*2])
def test_firmware_download(nvme0, size, offset):
buf = d.Buffer(size)
nvme0.fw_download(buf, offset).waitdone()
def test_firmware_commit(nvme0):
logging.info("commit without valid firmware image")
with pytest.warns(UserWarning, match="ERROR status: 01/07"):
nvme0.fw_commit(1, 0).waitdone()
logging.info("commit to invalid firmware slot")
with pytest.warns(UserWarning, match="ERROR status: 01/06"):
nvme0.fw_commit(7, 2).waitdone()
def test_sanitize_basic(nvme0, nvme0n1):
buf = d.Buffer(4096)
nvme0.identify(buf).waitdone()
if buf.data(331, 328) == 0:
warnings.warn("sanitize operation is not supported")
return
logging.info("supported sanitize operation: %d" % buf.data(331, 328))
nvme0.sanitize().waitdone()
# aer should happen after sanitize done
with pytest.warns(UserWarning, match="AER notification is triggered"):
# sanitize status log page
nvme0.getlogpage(0x81, buf, 20).waitdone()
while buf.data(3, 2) & 0x7 != 1: # sanitize is not completed
logging.info("sanitize progress %d%%" % (buf.data(1, 0)*100//0xffff))
nvme0.getlogpage(0x81, buf, 20).waitdone()
time.sleep(1)
logging.info("verify data after sanitize")
q = d.Qpair(nvme0, 8)
nvme0n1.read(q, buf, 11, 1).waitdone()
assert buf[0] == 0
@pytest.mark.parametrize("nsid", [0, 1, 0xffffffff])
def test_dst_short(nvme0, nsid):
nvme0.dst(1, nsid).waitdone()
# check dst log page till no dst in progress
buf = d.Buffer(4096)
nvme0.getlogpage(0x6, buf, 32).waitdone()
while buf[0]:
logging.info("current dst progress percentage: %d%%" % buf[1])
time.sleep(1)
nvme0.getlogpage(0x6, buf, 32).waitdone()
def test_dst_extended(nvme0):
nvme0.dst(2).waitdone()
# check dst log page till no dst in progress
buf = d.Buffer(4096)
nvme0.getlogpage(0x6, buf, 32).waitdone()
while buf[0]:
logging.info("current dst progress percentage: %d%%" % buf[1])
time.sleep(1)
nvme0.getlogpage(0x6, buf, 32).waitdone()
def test_write_uncorrectable(nvme0, nvme0n1):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
#Check if support write uncorrectable command
wuecc_support = nvme0.id_data(521, 520) & 0x2
if wuecc_support == 0:
pytest.skip("Not support write uncorrectable command!")
logging.info("read uncorretable")
nvme0n1.write_uncorrectable(q, 0, 8).waitdone()
with pytest.warns(UserWarning, match="ERROR status: 02/81"):
nvme0n1.read(q, buf, 0, 8).waitdone()
logging.info("read normal data")
nvme0n1.write(q, buf, 0, 8).waitdone()
nvme0n1.read(q, buf, 0, 8).waitdone()
logging.info("read uncorretable")
nvme0n1.write_uncorrectable(q, 0, 8).waitdone()
with pytest.warns(UserWarning, match="ERROR status: 02/81"):
nvme0n1.read(q, buf, 0, 8).waitdone()
logging.info("read normal")
nvme0n1.write(q, buf, 0, 8)
q.waitdone()
nvme0n1.read(q, buf, 0, 8)
q.waitdone()
# non-4K uncorretable write
logging.info("write partial uncorretable")
nvme0n1.write_uncorrectable(q, 0, 4)
q.waitdone()
logging.info("read normal lba")
nvme0n1.read(q, buf, 6, 2)
q.waitdone()
logging.info("read normal lba")
nvme0n1.read(q, buf, 8, 8)
q.waitdone()
logging.info("read uncorretable")
with pytest.warns(UserWarning, match="ERROR status: 02/81"):
nvme0n1.read(q, buf, 2, 2).waitdone()
logging.info("read partial uncorretable")
with pytest.warns(UserWarning, match="ERROR status: 02/81"):
nvme0n1.read(q, buf, 2, 8).waitdone()
logging.info("read normal")
nvme0n1.write(q, buf, 0, 8)
q.waitdone()
nvme0n1.read(q, buf, 0, 8)
q.waitdone()
@pytest.mark.parametrize("io_count", [0, 1, 8, 9])
@pytest.mark.parametrize("lba_count", [0, 1, 8, 9])
@pytest.mark.parametrize("lba_offset", [0, 1, 8, 9])
def test_different_io_size_and_count(nvme0, nvme0n1,
lba_offset, lba_count, io_count):
io_qpair = d.Qpair(nvme0, 10)
lba_count += 1
bufs = []
for i in range(io_count):
bufs.append(d.Buffer(lba_count*512))
for i in range(io_count):
nvme0n1.write(io_qpair, bufs[i], lba_offset, lba_count)
io_qpair.waitdone(io_count)
for i in range(io_count):
nvme0n1.read(io_qpair, bufs[i], lba_offset, lba_count)
io_qpair.waitdone(io_count)
def test_create_invalid_qpair(nvme0):
with pytest.raises(d.QpairCreationError):
q = d.Qpair(nvme0, 20, prio=1)
def test_buffer_set_get():
b = d.Buffer()
b[0] = 0xa5
b[1] = 0x5a
b[2] = 0xa5
assert b[0] == 0xa5
b[0:10] = b"1234567890"
assert b[0] == 0x31
b[0:10:1] = b"1234567890"
assert b[0] == 0x31
b[1:10:1] = b"abcd567890"
assert b[0] == 0x31
b[:10:1] = b"1234567890"
assert b[0] == 0x31
b[:10] = b"1234567890"
assert b[0] == 0x31
b[0:] = b"1234567890"
assert b[0] == 0x31
b[0] = 0x5a
assert b[0] == 0x5a
assert b[0:10] == b"Z234567890"
assert b[0:10:1] == b"Z234567890"
assert b[:10:1] == b"Z234567890"
assert b[:10] == b"Z234567890"
assert b[:] == b[0::1]
# this is a full slice
assert b[0:] != b"Z234567890"
@pytest.mark.parametrize("repeat", range(2))
def test_create_many_qpair(nvme0, repeat):
q = []
for i in range(16):
q.append(d.Qpair(nvme0, 8))
del q
for i in range(50):
q = d.Qpair(nvme0, 80)
def test_set_get_features(nvme0):
nvme0.setfeatures(0x7, cdw11=(16 << 16)+16)
nvme0.setfeatures(0x7, cdw11=(16 << 16)+16)
nvme0.waitdone(2)
nvme0.getfeatures(0x7)
nvme0.waitdone()
assert True
def test_pcie_reset(nvme0, pcie):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
ret = buf.data(115, 112)
logging.info("power cycles: %d" % ret)
return ret
powercycle = get_power_cycles(nvme0)
pcie.reset()
assert powercycle == get_power_cycles(nvme0)
def test_subsystem_shutdown_notify(nvme0, subsystem):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
return buf.data(115, 112)
powercycle = get_power_cycles(nvme0)
logging.info("power cycles: %d" % powercycle)
subsystem.shutdown_notify()
nvme0.reset()
assert powercycle == get_power_cycles(nvme0)
subsystem.shutdown_notify(True)
nvme0.reset()
assert powercycle == get_power_cycles(nvme0)
def test_write_fua_latency(nvme0n1, nvme0):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
now = time.time()
for i in range(100):
nvme0n1.write(q, buf, 0, 8).waitdone()
non_fua_time = time.time()-now
logging.info("normal write latency %fs" % non_fua_time)
now = time.time()
for i in range(100):
# write with FUA enabled
nvme0n1.write(q, buf, 0, 8, 1<<30).waitdone()
fua_time = time.time()-now
logging.info("FUA write latency %fs" % fua_time)
assert fua_time > non_fua_time
def test_read_fua_latency(nvme0n1, nvme0):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
# first time read to load data into SSD buffer
nvme0n1.read(q, buf, 0, 8).waitdone()
now = time.time()
for i in range(10000):
nvme0n1.read(q, buf, 0, 8).waitdone()
non_fua_time = time.time()-now
logging.info("normal read latency %fs" % non_fua_time)
now = time.time()
for i in range(10000):
nvme0n1.read(q, buf, 0, 8, 1<<30).waitdone()
fua_time = time.time()-now
logging.info("FUA read latency %fs" % fua_time)
# it fails sometimes
#assert fua_time > non_fua_time
def test_write_limited_retry(nvme0n1, nvme0):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
nvme0n1.write(q, buf, 0, 8, 1<<31).waitdone()
def test_read_limited_retry(nvme0n1, nvme0):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
nvme0n1.read(q, buf, 0, 8, 1<<31).waitdone()
@pytest.mark.skip(reason="limited support")
def test_subsystem_reset(nvme0, subsystem):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
logging.info("power cycles: %d" % buf.data(115, 112))
return buf.data(115, 112)
powercycle = get_power_cycles(nvme0)
subsystem.reset()
assert powercycle == get_power_cycles(nvme0)
def test_io_qpair_msix_interrupt_all(nvme0, nvme0n1):
buf = d.Buffer(4096)
ql = []
for i in range(16):
q = d.Qpair(nvme0, 8)
ql.append(q)
logging.info("qpair %d" % q.sqid)
q.msix_clear()
assert not q.msix_isset()
nvme0n1.read(q, buf, 0, 8)
time.sleep(0.1)
assert q.msix_isset()
q.waitdone()
def test_io_qpair_msix_interrupt_mask(nvme0, nvme0n1):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
q.msix_clear()
assert not q.msix_isset()
nvme0n1.read(q, buf, 0, 8)
time.sleep(1)
assert q.msix_isset()
q.waitdone()
q.msix_clear()
assert not q.msix_isset()
nvme0n1.read(q, buf, 0, 8)
time.sleep(1)
assert q.msix_isset()
q.waitdone()
q.msix_clear()
q.msix_mask()
assert not q.msix_isset()
nvme0n1.read(q, buf, 0, 8)
assert not q.msix_isset()
time.sleep(1)
assert not q.msix_isset()
q.msix_unmask()
time.sleep(0.1)
assert q.msix_isset()
q.waitdone()
q2 = d.Qpair(nvme0, 8)
q.msix_clear()
q2.msix_clear()
assert not q.msix_isset()
assert not q2.msix_isset()
nvme0n1.read(q2, buf, 0, 8)
time.sleep(1)
assert not q.msix_isset()
assert q2.msix_isset()
q2.waitdone()
def test_io_qpair_msix_interrupt_coalescing(nvme0, nvme0n1):
buf = d.Buffer(4096)
q = d.Qpair(nvme0, 8)
q.msix_clear()
assert not q.msix_isset()
# aggregation time: 100*100us=0.01s, aggregation threshold: 2
nvme0.setfeatures(8, (200<<8)+10)
# 1 cmd, check interrupt latency
nvme0n1.read(q, buf, 0, 8)
start = time.time()
while not q.msix_isset(): pass
latency1 = time.time()-start
logging.info("interrupt latency %dus" % (latency1*1000_000))
q.waitdone()
q.msix_clear()
# 2 cmd, check interrupt latency
nvme0n1.read(q, buf, 0, 8)
nvme0n1.read(q, buf, 0, 8)
start = time.time()
while not q.msix_isset(): pass
latency2 = time.time()-start
logging.info("interrupt latency %dus" % (latency2*1000_000))
q.waitdone(2)
q.msix_clear()
# 1 cmd, check interrupt latency
nvme0n1.read(q, buf, 0, 8)
start = time.time()
while not q.msix_isset(): pass
latency1 = time.time()-start
logging.info("interrupt latency %dus" % (latency1*1000_000))
q.waitdone()
q.msix_clear()
#assert latency1 > 0.01
#assert latency2 < 0.01
def test_power_cycle_with_ioworker_clean(nvme0n1, nvme0, subsystem):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
logging.info("power cycles: %d" % buf.data(115, 112))
return buf.data(115, 112)
import time
start_time = time.time()
powercycle = get_power_cycles(nvme0)
subsystem.power_cycle(15)
with nvme0n1.ioworker(io_size=256, lba_align=256,
lba_random=False, qdepth=64,
read_percentage=0, time=3):
pass
subsystem.power_cycle(15)
with nvme0n1.ioworker(io_size=256, lba_align=256,
lba_random=False, qdepth=64,
read_percentage=0, time=3):
pass
assert get_power_cycles(nvme0) == powercycle+2
assert time.time()-start_time >= 10
def test_subsystem_power_cycle(nvme0, subsystem):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
logging.info("power cycles: %d" % buf.data(115, 112))
return buf.data(115, 112)
import time
start_time = time.time()
powercycle = get_power_cycles(nvme0)
subsystem.power_cycle(15)
assert get_power_cycles(nvme0) == powercycle+1
assert time.time()-start_time >= 5
@pytest.mark.parametrize("delay", [0, 10])
def test_subsystem_power_cycle_without_notify(nvme0, nvme0n1, subsystem, delay):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
logging.info("power cycles: %d" % buf.data(115, 112))
return buf.data(115, 112)
import time
start_time = time.time()
powercycle = get_power_cycles(nvme0)
with nvme0n1.ioworker(io_size=256, lba_align=256,
lba_random=False, qdepth=64,
read_percentage=0, time=15):
pass
time.sleep(delay)
subsystem.power_cycle(15)
assert powercycle+1 == get_power_cycles(nvme0)
@pytest.mark.parametrize("abrupt", [False, True])
def test_subsystem_power_cycle_with_notify(nvme0, nvme0n1, subsystem, abrupt):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
p = buf.data(127, 112)
logging.info("power cycles: %d" % p)
return p
import time
start_time = time.time()
powercycle = get_power_cycles(nvme0)
with nvme0n1.ioworker(io_size=256, lba_align=256,
lba_random=False, qdepth=64,
read_percentage=0, time=10):
pass
subsystem.shutdown_notify(abrupt)
subsystem.power_cycle(15)
assert powercycle+1 == get_power_cycles(nvme0)
def test_controller_reset(nvme0):
def get_power_cycles(nvme0):
buf = d.Buffer(512)
nvme0.getlogpage(2, buf, 512).waitdone()
logging.info("power cycles: %d" % buf.data(115, 112))
return buf.data(115, 112)
powercycle = get_power_cycles(nvme0)
logging.info("power cycles: %d" % powercycle)
nvme0.reset()
assert get_power_cycles(nvme0) == powercycle
def test_get_smart_data(nvme0):
smart_buffer = d.Buffer(4096, "smart data buffer")
nvme0.getlogpage(0x2, smart_buffer, 512)
nvme0.waitdone()
assert smart_buffer[2] == 0 or smart_buffer[2] == 1
@pytest.mark.parametrize("loading", [0, 100])
def test_aer_smart_temperature(nvme0, loading, aer):