On Wed, Sep 11, 2019 at 04:53:43PM +0800, Yi Zhang wrote: > Add one test to cover NVMe SSD rescan/reset/remove operation during > IO, the steps found several issues during my previous testing, check > them here: > http://lists.infradead.org/pipermail/linux-nvme/2017-February/008358.html > http://lists.infradead.org/pipermail/linux-nvme/2017-May/010259.html > > Signed-off-by: Yi Zhang <yi.zhang@xxxxxxxxxx> > > --- > > changes from v2: > - add check_sysfs function for rescan/reset/remove operation > - declare all local variables at the start > - alignment fix > - add udevadm settle > - change to QUICK=1 > changes from v1: > - add variable for "/sys/bus/pci/devices/${pdev}" > - add kill $!; wait; for background fio > - add rescan/reset/remove sysfs node check > - add loop checking for nvme reinitialized > > --- > --- > tests/nvme/031 | 75 ++++++++++++++++++++++++++++++++++++++++++++++ > tests/nvme/031.out | 2 ++ > 2 files changed, 77 insertions(+) > create mode 100755 tests/nvme/031 > create mode 100644 tests/nvme/031.out > > diff --git a/tests/nvme/031 b/tests/nvme/031 > new file mode 100755 > index 0000000..31db8a5 > --- /dev/null > +++ b/tests/nvme/031 > @@ -0,0 +1,75 @@ > +#!/bin/bash > +# SPDX-License-Identifier: GPL-3.0+ > +# Copyright (C) 2019 Yi Zhang <yi.zhang@xxxxxxxxxx> > +# > +# Test nvme pci adapter rescan/reset/remove operation during I/O > +# > +# Regression test for bellow two commits: > +# http://lists.infradead.org/pipermail/linux-nvme/2017-May/010367.html > +# 986f75c876db nvme: avoid to use blk_mq_abort_requeue_list() > +# 806f026f9b90 nvme: use blk_mq_start_hw_queues() in nvme_kill_queues() > + > +. tests/nvme/rc > + > +DESCRIPTION="test nvme pci adapter rescan/reset/remove during I/O" > +QUICK=1 > + > +requires() { > + _have_fio > +} > + > +device_requires() { > + _test_dev_is_nvme > +} > + > +check_sysfs() > +{ > + local sysfs_attr="$sysfs/$1" > + > + if [[ -f "$sysfs_attr" ]]; then > + echo 1 > "${sysfs_attr}" > + else > + # QEMU VM doesn't have the "reset" attribute, skip it > + [[ "$sysfs_attr" == *reset ]] && return > + echo "${sysfs_attr} doesn't exist!" > + fi > +} > + > +test_device() { > + echo "Running ${TEST_NAME}" > + > + local sysfs > + local m > + > + pdev="$(_get_pci_dev_from_blkdev)" > + sysfs="/sys/bus/pci/devices/${pdev}" > + > + # start fio job > + _run_fio_rand_io --filename="$TEST_DEV" --size=1g \ > + --group_reporting &> /dev/null & > + > + sleep 5 > + > + # do rescan/reset/remove operation > + for i in rescan reset remove; do > + check_sysfs $i > + done > + > + { kill $!; wait; } &> /dev/null > + > + echo 1 > /sys/bus/pci/rescan > + > + # wait nvme reinitialized > + for ((m = 0; m < 10; m++)); do > + if [[ -b "${TEST_DEV}" ]]; then > + break > + fi > + sleep 0.5 > + done > + if (( m > 9 )); then > + echo "nvme still not reinitialized after 5 seconds!" > + fi > + udevadm settle > + > + echo "Test complete" > +} > diff --git a/tests/nvme/031.out b/tests/nvme/031.out > new file mode 100644 > index 0000000..ae902bd > --- /dev/null > +++ b/tests/nvme/031.out > @@ -0,0 +1,2 @@ > +Running nvme/031 > +Test complete > -- > 2.17.2 > Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> Thanks, Ming
