consolidated s390 device configuration - step 2: cleanup

.github/labeler.yml

@@ -374,18 +374,6 @@ cifs:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95cifs/*'
 
-dasd:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95dasd/*'
-
-dasd_mod:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95dasd_mod/*'
-
-dasd_rules:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95dasd_rules/*'
-
 dcssblk:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95dcssblk/*'
@@ -426,10 +414,6 @@ nvmf:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95nvmf/*'
 
-qeth_rules:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95qeth_rules/*'
-
 resume:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95resume/*'
@@ -458,14 +442,6 @@ virtiofs:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95virtiofs/*'
 
-zfcp:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95zfcp/*'
-
-zfcp_rules:
-  - changed-files:
-    - any-glob-to-any-file: 'modules.d/95zfcp_rules/*'
-
 znet:
   - changed-files:
     - any-glob-to-any-file: 'modules.d/95znet/*'

man/dracut.cmdline.7.asc

@@ -972,19 +972,38 @@ root=virtiofs:host rw
 DASD
 ~~~~
 **rd.dasd=**....::
-    same syntax as the kernel module parameter (s390 only)
+    same syntax as the kernel module parameter (s390 only).
+    For more details on the syntax see the IBM book
+    "Linux on IBM Z and IBM LinuxONE - Device Drivers, Features, and Commands"
+    https://www.ibm.com/docs/en/linux-on-systems?topic=overview-device-drivers-features-commands.
+    This parameter can be specified multiple times.
++
+NOTE:
+    This parameter is no longer handled by dracut itself but with the exact
+    same syntax by
+    https://github.com/ibm-s390-linux/s390-tools/tree/master/zdev/dracut/95zdev.
 
 ZFCP
 ~~~~
 **rd.zfcp=**__<zfcp adaptor device bus ID>__,__<WWPN>__,__<FCPLUN>__::
     rd.zfcp can be specified multiple times on the kernel command
     line.
++
+NOTE:
+    This parameter is no longer handled by dracut itself but with the exact
+    same syntax by
+    https://github.com/ibm-s390-linux/s390-tools/tree/master/zdev/dracut/95zdev.
 
 **rd.zfcp=**__<zfcp adaptor device bus ID>__::
     If NPIV is enabled and the 'allow_lun_scan' parameter to the zfcp
-    module is set to 'Y' then the zfcp adaptor will be initiating a
+    module is set to 'Y' then the zfcp driver will be initiating a
     scan internally and the <WWPN> and <FCPLUN> parameters can be omitted.
 +
+NOTE:
+    This parameter is no longer handled by dracut itself but with the exact
+    same syntax by
+    https://github.com/ibm-s390-linux/s390-tools/tree/master/zdev/dracut/95zdev.
++
 [listing]
 .Example
 --
@@ -993,14 +1012,21 @@ rd.zfcp=0.0.4000
 --
 
 **rd.zfcp.conf=0**::
-    ignore zfcp.conf included in the initramfs
+    ignore zfcp.conf included in the initramfs.
++
+NOTE:
+    This parameter no longer has any effect and is ignored.
+    The file /etc/zfcp.conf no longer gets included in the initramfs.
 
 ZNET
 ~~~~
 **rd.znet=**__<nettype>__,__<subchannels>__,__<options>__::
-    The whole parameter is appended to /etc/ccw.conf, which is used on
-    RHEL/Fedora with ccw_init, which is called from udev for certain
-    devices on z-series.
+    Activates a channel-attached network interface on s390 architecture.
+    <nettype> is one of: qeth, lcs, ctc.
+    <subchannels> is a comma-separated list of ccw device bus-IDs.
+    The list consists of 3 entries with nettype qeth, and 2 for other nettype.
+    <options> is a comma-separated list of <name>=<value> pairs,
+    where <name> refers to a device sysfs attribute to which <value> gets written.
     rd.znet can be specified multiple times on the kernel command line.
 
 **rd.znet_ifname=**__<ifname>__:__<subchannels>__::

modules.d/45ifcfg/write-ifcfg.sh

@@ -10,68 +10,21 @@ mkdir -m 0755 -p /tmp/ifcfg/
 # shellcheck disable=SC2174
 mkdir -m 0755 -p /tmp/ifcfg-leases/
 
-get_config_line_by_subchannel() {
-    local CHANNELS
-    local line
-
-    CHANNELS="$1"
-    while read -r line || [ -n "$line" ]; do
-        if strstr "$line" "$CHANNELS"; then
-            echo "$line"
-            return 0
-        fi
-    done < /etc/ccw.conf
-    return 1
-}
-
 print_s390() {
     local _netif
     local SUBCHANNELS
-    local OPTIONS
-    local NETTYPE
-    local CONFIG_LINE
     local i
-    local channel
-    local OLD_IFS
 
     _netif="$1"
     # if we find ccw channel, then use those, instead of
     # of the MAC
-    SUBCHANNELS=$({
-        for i in /sys/class/net/"$_netif"/device/cdev[0-9]*; do
-            [ -e "$i" ] || continue
-            channel=$(readlink -f "$i")
-            printf '%s' "${channel##*/},"
-        done
-    })
+    # [iface_get_subchannels() from /lib/net-lib.sh sourced at top of this file]
+    SUBCHANNELS=$(iface_get_subchannels "$_netif")
     [ -n "$SUBCHANNELS" ] || return 1
 
     SUBCHANNELS=${SUBCHANNELS%,}
     echo "SUBCHANNELS=\"${SUBCHANNELS}\""
 
-    CONFIG_LINE=$(get_config_line_by_subchannel "$SUBCHANNELS")
-    # shellcheck disable=SC2181
-    [ $? -ne 0 -o -z "$CONFIG_LINE" ] && return 0
-
-    OLD_IFS=$IFS
-    IFS=","
-    # shellcheck disable=SC2086
-    set -- $CONFIG_LINE
-    IFS=$OLD_IFS
-    NETTYPE=$1
-    shift
-    SUBCHANNELS="$1"
-    OPTIONS=""
-    shift
-    while [ $# -gt 0 ]; do
-        case $1 in
-            *=*) OPTIONS="$OPTIONS $1" ;;
-        esac
-        shift
-    done
-    OPTIONS=${OPTIONS## }
-    echo "NETTYPE=\"${NETTYPE}\""
-    echo "OPTIONS=\"${OPTIONS}\""
     return 0
 }
 

modules.d/80cms/cms-write-ifcfg.sh

@@ -81,21 +81,8 @@ EOF
     fi
     # colons in SEARCHDNS already replaced with spaces above for /etc/resolv.conf
     [[ $SEARCHDNS ]] && echo "DOMAIN=\"$SEARCHDNS\"" >> "$IFCFGFILE"
-    [[ $NETTYPE ]] && echo "NETTYPE=$NETTYPE" >> "$IFCFGFILE"
     [[ $PEERID ]] && echo "PEERID=$PEERID" >> "$IFCFGFILE"
-    [[ $PORTNAME ]] && echo "PORTNAME=$PORTNAME" >> "$IFCFGFILE"
-    [[ $CTCPROT ]] && echo "CTCPROT=$CTCPROT" >> "$IFCFGFILE"
     [[ $MACADDR ]] && echo "MACADDR=$MACADDR" >> "$IFCFGFILE"
-    optstr=""
-    for option in LAYER2 PORTNO; do
-        [ -z "${!option}" ] && continue
-        [ -n "$optstr" ] && optstr=${optstr}" "
-        optstr=${optstr}$(echo ${option} | sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/')"="${!option}
-    done
-    # write single quotes since network.py removes double quotes but we need quotes
-    echo "OPTIONS='$optstr'" >> "$IFCFGFILE"
-    unset option
-    unset optstr
     unset DNS1
     unset DNS2
     echo "files /etc/sysconfig/network-scripts" >> /run/initramfs/rwtab