main - tests: device ids using vpd data

main - tests: device ids using vpd data

[David Teigland]

Gitweb:        https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=c4e6d675de5b0df5a711971b7828933f07b0efd0
Commit:        c4e6d675de5b0df5a711971b7828933f07b0efd0
Parent:        79e67fc5e4f28d19fe4d93e6831a3a60e9760b68
Author:        David Teigland <teigland@redhat.com>
AuthorDate:    Tue Sep 20 10:54:57 2022 -0500
Committer:     David Teigland <teigland@redhat.com>
CommitterDate: Mon Oct 10 11:47:29 2022 -0500

tests: device ids using vpd data

---
 test/shell/devicesfile-vpd-ids.sh | 201 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)

diff --git a/test/shell/devicesfile-vpd-ids.sh b/test/shell/devicesfile-vpd-ids.sh
new file mode 100644
index 000000000..0eca56935
--- /dev/null
+++ b/test/shell/devicesfile-vpd-ids.sh
@@ -0,0 +1,201 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2020 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# 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
+
+test_description='device id wwid from vpd_pg83'
+
+. lib/inittest
+
+test "$DM_DEV_DIR" = "/dev" || skip "Only works with /dev access -> make check LVM_TEST_DEVDIR=/dev"
+
+aux lvmconf 'devices/use_devicesfile = 1'
+# requires trailing / to match dm
+aux lvmconf 'devices/device_id_sysfs_dir = "/test/sys/"'
+SYS_DIR="/test/sys"
+
+# These values match the values encoded in the binary blob
+# written to dev1_vpd_pg83
+DEV1_NAA=naa.600a098038303877413f4e7049592e6e
+DEV1_EUI=eui.3f4e7049592d6f0000a0973730387741
+DEV1_T10=t10.LVMTST_LUN_809wALVMTSTo
+# dev has a second naa wwid
+DEV1_NAA2=naa.600a098000000002ac18542400000dbd
+# dev has a third naa wwid in the scsi name field
+DEV1_NAA3=naa.553b13644430344b4e3f486d32647962
+
+create_base() {
+	mkdir -p $SYS_DIR/dev/block
+
+	echo -n "0083 009c 0201 0020 4c56 4d54 5354 2020 \
+	204c 554e 2038 3039 7741 4c56 4d54 5354 \
+	6f20 2020 2020 2020 0103 0010 600a 0980 \
+	3830 3877 413f 4e70 4959 2e6e 0102 0010 \
+	3f4e 7049 592d 6f00 00a0 9737 3038 7741 \
+	0113 0010 600a 0980 0000 0002 ac18 5424 \
+	0000 0dbd 0114 0004 0101 0005 0115 0004 \
+	0000 03ec 0328 0028 6e61 612e 3535 3342 \
+	3133 3634 3434 3330 3334 3442 3445 3346 \
+	3438 3644 3332 3634 3739 3632 0000 0000" | xxd -r -p > $SYS_DIR/dev1_vpd_pg83
+}
+
+remove_base() {
+	rm $SYS_DIR/dev1_vpd_pg83
+	rmdir $SYS_DIR/dev/block
+	rmdir $SYS_DIR/dev
+	rmdir $SYS_DIR
+}
+
+setup_sysfs() {
+	mkdir -p $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device
+	echo $1 > $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+	cp $SYS_DIR/dev1_vpd_pg83 $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/vpd_pg83
+}
+
+cleanup_sysfs() {
+	rm -f $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+	rm -f $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/vpd_pg83
+	rmdir $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device
+	rmdir $SYS_DIR/dev/block/$MAJOR1:$MINOR1
+}
+
+
+modprobe scsi_debug dev_size_mb=16 num_tgts=1
+sleep 2
+# Get scsi device name created by scsi_debug.
+# SD = sdh
+# DEV1 = /dev/sdh
+SD=$(grep -H scsi_debug /sys/block/sd*/device/model | cut -f4 -d /);
+echo $SD
+DEV1=/dev/$SD
+echo $DEV1
+
+DFDIR="$LVM_SYSTEM_DIR/devices"
+mkdir -p "$DFDIR" || true
+DF="$DFDIR/system.devices"
+touch $DF
+
+pvcreate "$DEV1"
+vgcreate $vg "$DEV1"
+MAJOR1=`pvs "$DEV1" --noheading -o major | tr -d - | awk '{print $1}'`
+MINOR1=`pvs "$DEV1" --noheading -o minor | tr -d - | awk '{print $1}'`
+PVID1=`pvs "$DEV1" --noheading -o uuid | tr -d - | awk '{print $1}'`
+
+create_base
+
+# No sys/wwid, lvm uses wwid from sys/vpd
+
+setup_sysfs $DEV1_NAA
+# no sys/wwid is reported
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+pvs "$DEV1"
+grep $DEV1_NAA $DF
+cleanup_sysfs
+
+# Kernel changes the type printed from sys/wwid from t10 to naa
+# after lvm has used sys_wwid with the t10 value.
+# set sys/wwid to t10 value
+# add dev to df, it uses t10 value
+# change sys/wwid to naa value
+# reporting pvs should still find the dev based on using vpd data
+#  and find the t10 value there
+
+setup_sysfs $DEV1_T10
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+grep sys_wwid $DF
+grep $DEV1_T10 $DF
+pvs "$DEV1"
+# kernel changes what it reports from sys/wwid
+echo $DEV1_NAA > $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+# lvm finds the original t10 id in vpd
+pvs "$DEV1"
+cleanup_sysfs
+
+# User chooses wwid type other than is printed from sys/wwid
+# set sys/wwid to t10|naa|eui value
+# lvmdevices --adddev using --deviceidtype different from sys/wwid
+# df entry uses the specified type
+# reporting pvs should show the pv
+
+setup_sysfs $DEV1_T10
+rm $DF
+lvmdevices --adddev "$DEV1" --deviceidtype wwid_naa
+cat $DF
+grep wwid_naa $DF
+grep $DEV1_NAA $DF
+pvs "$DEV1"
+lvmdevices --deldev "$DEV1"
+lvmdevices --addpvid "$PVID1" --deviceidtype wwid_naa
+cat $DF
+grep $DEV1_NAA $DF
+pvs "$DEV1"
+lvmdevices --deldev "$DEV1"
+lvmdevices --adddev "$DEV1" --deviceidtype wwid_eui
+cat $DF
+grep wwid_eui $DF
+grep $DEV1_EUI $DF
+pvs "$DEV1"
+cleanup_sysfs
+
+# Any of the vpd wwids can be used in the devices file 
+# with type sys_wwid and the device will be matched to
+# it by finding that wwid in the vpd data.
+
+setup_sysfs $DEV1_NAA
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+pvs "$DEV1"
+cleanup_sysfs
+
+setup_sysfs $DEV1_NAA2
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+pvs "$DEV1"
+cleanup_sysfs
+
+setup_sysfs $DEV1_NAA3
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+pvs "$DEV1"
+cleanup_sysfs
+
+setup_sysfs $DEV1_EUI
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+pvs "$DEV1"
+cleanup_sysfs
+
+setup_sysfs $DEV1_T10
+rm $DF
+lvmdevices --adddev "$DEV1"
+cat $DF
+rm $SYS_DIR/dev/block/$MAJOR1:$MINOR1/device/wwid
+pvs "$DEV1"
+cleanup_sysfs
+
+
+# TODO: lvmdevices --adddev <dev> --deviceidtype <type> --deviceid <val>
+# This would let the user specify the second naa wwid.
+
+remove_base
+rmmod scsi_debug