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nbd: part bdev through bdev_svc

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Change-Id: I667df64dd2363c606f39b52c0411c6ba7f55d5ba
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/391370
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Xiaodong Liu 2017-12-11 01:56:40 -05:00 committed by Jim Harris
parent 381af5775f
commit 450ffbc63a
2 changed files with 17 additions and 9 deletions
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6
doc/bdev.md
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@ -194,12 +194,14 @@ The bdev NBD app can be used to temporarily expose an SPDK bdev through the Linu
block stack so that standard partitioning tools can be used.
~~~
# Expose bdev Nvme0n1 as kernel block device /dev/nbd0
# Assumes bdev.conf is already configured with a bdev named Nvme0n1 -
# see the NVMe section above.
test/lib/bdev/nbd/nbd -c bdev.conf -b Nvme0n1 -n /dev/nbd0 &
test/app/bdev_svc/bdev_svc -c bdev.conf &
nbd_pid=$!
# Expose bdev Nvme0n1 as kernel block device /dev/nbd0 by JSON-RPC
scripts/rpc.py start_nbd_disk Nvme0n1 /dev/nbd0
# Create GPT partition table.
parted -s /dev/nbd0 mklabel gpt

20
scripts/autotest_common.sh
View File

@ -370,6 +370,8 @@ function part_dev_by_gpt () {
devname=$2
rootdir=$3
operation=$4
local nbd_path=/dev/nbd0
local rpc_server=/var/tmp/spdk-gpt-bdevs.sock
if [ ! -e $conf ]; then
return 1
@ -384,24 +386,28 @@ function part_dev_by_gpt () {
echo " Disable Yes" >> ${conf}.gpt
modprobe nbd
$rootdir/test/lib/bdev/nbd/nbd -c ${conf}.gpt -b $devname -n /dev/nbd0 &
$rootdir/test/app/bdev_svc/bdev_svc -r $rpc_server -i 0 -c ${conf}.gpt &
nbd_pid=$!
echo "Process nbd pid: $nbd_pid"
waitforlisten $nbd_pid
waitfornbd nbd0
waitforlisten $nbd_pid $rpc_server
# Start bdev as a nbd device
$rootdir/scripts/rpc.py -s "$rpc_server" start_nbd_disk $devname $nbd_path
waitfornbd ${nbd_path:5}
if [ "$operation" = create ]; then
parted -s /dev/nbd0 mklabel gpt mkpart first '0%' '50%' mkpart second '50%' '100%'
parted -s $nbd_path mklabel gpt mkpart first '0%' '50%' mkpart second '50%' '100%'
# change the GUID to SPDK GUID value
SPDK_GPT_GUID=`grep SPDK_GPT_PART_TYPE_GUID $rootdir/lib/bdev/gpt/gpt.h \
| awk -F "(" '{ print $2}' | sed 's/)//g' \
| awk -F ", " '{ print $1 "-" $2 "-" $3 "-" $4 "-" $5}' | sed 's/0x//g'`
sgdisk -t 1:$SPDK_GPT_GUID /dev/nbd0
sgdisk -t 2:$SPDK_GPT_GUID /dev/nbd0
sgdisk -t 1:$SPDK_GPT_GUID $nbd_path
sgdisk -t 2:$SPDK_GPT_GUID $nbd_path
elif [ "$operation" = reset ]; then
# clear the partition table
dd if=/dev/zero of=/dev/nbd0 bs=4096 count=8 oflag=direct
dd if=/dev/zero of=$nbd_path bs=4096 count=8 oflag=direct
fi
killprocess $nbd_pid