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dracut/0086.patch

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From 019610af266bcaef711715266bc0ca4be1044150 Mon Sep 17 00:00:00 2001
From: Enzo Matsumiya <ematsumiya@suse.de>
Date: Mon, 3 Aug 2020 11:21:36 -0300
Subject: [PATCH] 95nvmf: add NVMe over TCP support
Add support to boot from an NVMe over TCP device.
Example of supported command line formats:
nvme.discover=tcp:192.168.1.3::4420
nvme.discover=tcp:192.168.1.3 # will use 4420 as default svcid
- Create is_nvmf() function to handle all fabrics types
- Fix parse_nvmf_discover() to correctly use the default values
- Auxiliary function to validate an IP connection
- Fix inverted result for getargbool when reading "rd.nonvmf" command line parameter
Requires rd.neednet=1
Requires adding/replacing STARTMODE in /etc/sysconfig/network/ifcfg-ethX to "nfsroot"
to avoid shutdown hanging in initiator
Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
---
modules.d/95nvmf/module-setup.sh | 25 ++++---
modules.d/95nvmf/parse-nvmf-boot-connections.sh | 97 ++++++++++++++++++-------
2 files changed, 84 insertions(+), 38 deletions(-)
diff --git a/modules.d/95nvmf/module-setup.sh b/modules.d/95nvmf/module-setup.sh
index db43ec01..418b5e0c 100755
--- a/modules.d/95nvmf/module-setup.sh
+++ b/modules.d/95nvmf/module-setup.sh
@@ -6,9 +6,9 @@ check() {
[ -f /etc/nvme/hostnqn ] || return 255
[ -f /etc/nvme/hostid ] || return 255
- is_nvme_fc() {
+ is_nvmf() {
local _dev=$1
- local traddr
+ local trtype
[[ -L "/sys/dev/block/$_dev" ]] || return 0
cd -P "/sys/dev/block/$_dev" || return 0
@@ -18,19 +18,19 @@ check() {
for d in device/nvme* ; do
[ -L "$d" ] || continue
if readlink "$d" | grep -q nvme-fabrics ; then
- traddr=$(cat "$d"/address)
- break
- fi
- done
- [[ "${traddr#traddr=nn-}" != "$traddr" ]]
+ trtype=$(cat "$d"/transport)
+ break
+ fi
+ done
+ [[ "$trtype" == "fc" ]] || [[ "$trtype" == "tcp" ]] || [[ "$trtype" == "rdma" ]]
}
[[ $hostonly ]] || [[ $mount_needs ]] && {
pushd . >/dev/null
- for_each_host_dev_and_slaves is_nvme_fc
- local _is_nvme_fc=$?
+ for_each_host_dev_and_slaves is_nvmf
+ local _is_nvmf=$?
popd >/dev/null
- [[ $_is_nvme_fc == 0 ]] || return 255
+ [[ $_is_nvmf == 0 ]] || return 255
if [ ! -f /sys/class/fc/fc_udev_device/nvme_discovery ] ; then
if [ ! -f /etc/nvme/discovery.conf ] ; then
echo "No discovery arguments present"
@@ -43,13 +43,14 @@ check() {
# called by dracut
depends() {
- echo bash rootfs-block
+ echo bash rootfs-block network
return 0
}
# called by dracut
installkernel() {
instmods nvme_fc lpfc qla2xxx
+ hostonly="" instmods nvme_tcp nvme_fabrics
}
# called by dracut
@@ -76,6 +77,8 @@ install() {
inst_simple "/etc/nvme/hostnqn"
inst_simple "/etc/nvme/hostid"
+ inst_multiple ip sed
+
inst_multiple nvme
inst_multiple -o \
"$systemdsystemunitdir/nvm*-connect@.service" \
diff --git a/modules.d/95nvmf/parse-nvmf-boot-connections.sh b/modules.d/95nvmf/parse-nvmf-boot-connections.sh
index 0d16b871..61c6dec1 100755
--- a/modules.d/95nvmf/parse-nvmf-boot-connections.sh
+++ b/modules.d/95nvmf/parse-nvmf-boot-connections.sh
@@ -8,69 +8,102 @@
# Examples:
# nvmf.hostnqn=nqn.2014-08.org.nvmexpress:uuid:37303738-3034-584d-5137-333230423843
# nvmf.discover=rdma:192.168.1.3::4420
+# nvme.discover=tcp:192.168.1.3::4420
+# nvme.discover=tcp:192.168.1.3
# nvmf.discover=fc:auto
#
# Note: FC does autodiscovery, so typically there is no need to
# specify any discover parameters for FC.
#
+type is_ip >/dev/null 2>&1 || . /lib/net-lib.sh
+
+if getargbool 0 rd.nonvmf ; then
+ warn "rd.nonvmf=0: skipping nvmf"
+ return 0
+fi
+
+initqueue --onetime modprobe --all -b -q nvme nvme_tcp nvme_core nvme_fabrics
+
+traddr="none"
+trtype="none"
+hosttraddr="none"
+trsvcid=4420
+
+validate_ip_conn() {
+ if ! getargbool 0 rd.neednet ; then
+ warn "$trtype transport requires rd.neednet=1"
+ return 1
+ fi
+
+ local_address=$(ip -o route get to $traddr | sed -n 's/.*src \([0-9a-f.:]*\).*/\1/p')
+
+ # confirm we got a local IP address
+ if ! is_ip "$local_address" ; then
+ warn "$traddr is an invalid address";
+ return 1
+ fi
+
+ ifname=$(ip -o route get to $local_address | sed -n 's/.*dev \([^ ]*\).*/\1/p')
+
+ if ip l show "$ifname" >/dev/null 2>&1 ; then
+ warn "invalid network interface $ifname"
+ return 1
+ fi
+
+ # confirm there's a route to destination
+ if ip route get "$traddr" >/dev/null 2>&1 ; then
+ warn "no route to $traddr"
+ return 1
+ fi
+}
+
parse_nvmf_discover() {
OLDIFS="$IFS"
IFS=:
- trtype="none"
- traddr="none"
- hosttraddr="none"
- trsvcid=4420
-
set $1
IFS="$OLDIFS"
case $# in
2)
- trtype=$1
- traddr=$2
+ [ -n "$1" ] && trtype=$1
+ [ -n "$2" ] && traddr=$2
;;
3)
- trtype=$1
- traddr=$2
- hosttraddr=$3
+ [ -n "$1" ] && trtype=$1
+ [ -n "$2" ] && traddr=$2
+ [ -n "$3" ] && hosttraddr=$3
;;
4)
- trtype=$1
- traddr=$2
- hosttraddr=$3
- trsvcid=$4
+ [ -n "$1" ] && trtype=$1
+ [ -n "$2" ] && traddr=$2
+ [ -n "$3" ] && hosttraddr=$3
+ [ -n "$4" ] && trsvcid=$4
;;
*)
warn "Invalid arguments for nvmf.discover=$1"
return 1
;;
esac
- if [ -z "$traddr" ] ; then
+ if [ "$traddr" = "none" ] ; then
warn "traddr is mandatory for $trtype"
return 1;
fi
- [ -z "$hosttraddr" ] && hosttraddr="none"
- [ -z "$trsvcid" ] && trsvcid="none"
if [ "$trtype" = "fc" ] ; then
- if [ -z "$hosttraddr" ] ; then
+ if [ "$hosttraddr" = "none" ] ; then
warn "host traddr is mandatory for fc"
return 1
fi
elif [ "$trtype" != "rdma" ] && [ "$trtype" != "tcp" ] ; then
warn "unsupported transport $trtype"
return 1
- elif [ -z "$trsvcid" ] ; then
- trsvcid=4420
+ fi
+ if [ "$trtype" = "tcp" ]; then
+ validate_ip_conn
fi
echo "--transport=$trtype --traddr=$traddr --host-traddr=$hosttraddr --trsvcid=$trsvcid" >> /etc/nvme/discovery.conf
}
-if ! getargbool 0 rd.nonvmf ; then
- info "rd.nonvmf=0: skipping nvmf"
- return 0
-fi
-
nvmf_hostnqn=$(getarg nvmf.hostnqn=)
if [ -n "$nvmf_hostnqn" ] ; then
echo "$nvmf_hostnqn" > /etc/nvme/hostnqn
@@ -89,7 +122,17 @@ done
[ -f "/etc/nvme/hostid" ] || exit 0
if [ -f "/etc/nvme/discovery.conf" ] ; then
- /sbin/initqueue --onetime --unique --name nvme-discover /usr/sbin/nvme connect-all
+ if [ "$trtype" = "tcp" ] ; then
+ /sbin/initqueue --settled --onetime --unique --name nvme-discover /usr/sbin/nvme connect-all
+ > /tmp/net.$ifname.did-setup
+ else
+ /sbin/initqueue --onetime --unique --name nvme-discover /usr/sbin/nvme connect-all
+ fi
else
- /sbin/initqueue --finished --unique --name nvme-fc-autoconnect echo 1 > /sys/class/fc/fc_udev_device/nvme_discovery
+ if [ "$trtype" = "tcp" ] ; then
+ /sbin/initqueue --settled --onetime --unique /usr/sbin/nvme connect-all -t tcp -a $traddr -s $trsvcid
+ > /tmp/net.$ifname.did-setup
+ else
+ /sbin/initqueue --finished --unique --name nvme-fc-autoconnect echo 1 > /sys/class/fc/fc_udev_device/nvme_discovery
+ fi
fi
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