Adding upstream version 060+5.upstream/060+5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 221 insertions, 0 deletions

diff --git a/modules.d/80cms/cmssetup.sh b/modules.d/80cms/cmssetup.sh
new file mode 100755
index 0000000..68e4563
--- /dev/null
+++ b/modules.d/80cms/cmssetup.sh
@@ -0,0 +1,221 @@
+#!/bin/bash
+
+type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
+
+function sysecho() {
+    file="$1"
+    shift
+    local i=1
+    while [ $i -le 10 ]; do
+        if [ ! -f "$file" ]; then
+            sleep 1
+            i=$((i + 1))
+        else
+            break
+        fi
+    done
+    local status
+    read -r status < "$file"
+    if [[ $status != "$*" ]]; then
+        [ -f "$file" ] && echo "$*" > "$file"
+    fi
+}
+
+function dasd_settle() {
+    local dasd_status=/sys/bus/ccw/devices/$1/status
+    if [ ! -f "$dasd_status" ]; then
+        return 1
+    fi
+    local i=1
+    while [ $i -le 60 ]; do
+        local status
+        read -r status < "$dasd_status"
+        case $status in
+            online | unformatted)
+                return 0
+                ;;
+            *)
+                sleep 0.1
+                i=$((i + 1))
+                ;;
+        esac
+    done
+    return 1
+}
+
+function dasd_settle_all() {
+    for dasdccw in $(while read -r line || [ -n "$line" ]; do echo "${line%%(*}"; done < /proc/dasd/devices); do
+        if ! dasd_settle "$dasdccw"; then
+            echo $"Could not access DASD $dasdccw in time"
+            return 1
+        fi
+    done
+    return 0
+}
+
+# prints a canonocalized device bus ID for a given devno of any format
+function canonicalize_devno() {
+    case ${#1} in
+        3) echo "0.0.0${1}" ;;
+        4) echo "0.0.${1}" ;;
+        *) echo "${1}" ;;
+    esac
+    return 0
+}
+
+# read file from CMS and write it to /tmp
+function readcmsfile() { # $1=dasdport $2=filename
+    local dev
+    local numcpus
+    local devname
+    local ret=0
+    if [ $# -ne 2 ]; then return; fi
+    # precondition: udevd created dasda block device node
+    if ! dasd_cio_free -d "$1"; then
+        echo $"DASD $1 could not be cleared from device blacklist"
+        return 1
+    fi
+
+    modprobe dasd_mod dasd="$CMSDASD"
+    modprobe dasd_eckd_mod
+    udevadm settle
+
+    # precondition: dasd_eckd_mod driver incl. dependencies loaded,
+    #               dasd_mod must be loaded without setting any DASD online
+    dev=$(canonicalize_devno "$1")
+    numcpus=$(
+        while read -r line || [ -n "$line" ]; do
+            if strstr "$line" "# processors"; then
+                echo "${line##*:}"
+                break
+            fi
+        done < /proc/cpuinfo
+    )
+
+    if [ "${numcpus}" -eq 1 ]; then
+        echo 1 > /sys/bus/ccw/devices/"$dev"/online
+    else
+        if ! sysecho /sys/bus/ccw/devices/"$dev"/online 1; then
+            echo $"DASD $dev could not be set online"
+            return 1
+        fi
+        udevadm settle
+        if ! dasd_settle "$dev"; then
+            echo $"Could not access DASD $dev in time"
+            return 1
+        fi
+    fi
+
+    udevadm settle
+
+    devname=$(
+        cd /sys/bus/ccw/devices/"$dev"/block || exit
+        set -- *
+        [ -b /dev/"$1" ] && echo "$1"
+    )
+    devname=${devname:-dasda}
+
+    [[ -d /mnt ]] || mkdir -p /mnt
+    if cmsfs-fuse --to=UTF-8 -a /dev/"$devname" /mnt; then
+        cat /mnt/"$2" > /run/initramfs/"$2"
+        umount /mnt || umount -l /mnt
+        udevadm settle
+    else
+        echo $"Could not read conf file $2 on CMS DASD $1."
+        ret=1
+    fi
+
+    if ! sysecho /sys/bus/ccw/devices/"$dev"/online 0; then
+        echo $"DASD $dev could not be set offline again"
+        #return 1
+    fi
+    udevadm settle
+
+    # unbind all dasds to unload the dasd modules for a clean start
+    (
+        cd /sys/bus/ccw/drivers/dasd-eckd || exit
+        for i in *.*; do echo "$i" > unbind; done
+    )
+    udevadm settle
+    modprobe -r dasd_eckd_mod
+    udevadm settle
+    modprobe -r dasd_diag_mod
+    udevadm settle
+    modprobe -r dasd_mod
+    udevadm settle
+    return $ret
+}
+
+processcmsfile() {
+    source /tmp/cms.conf
+    SUBCHANNELS="$(echo "$SUBCHANNELS" | sed 'y/ABCDEF/abcdef/')"
+
+    if [[ $NETTYPE ]]; then
+        (
+            echo -n "$NETTYPE","$SUBCHANNELS"
+            [[ $PORTNAME ]] && echo -n ",portname=$PORTNAME"
+            [[ $LAYER2 ]] && echo -n ",layer2=$LAYER2"
+            [[ $NETTYPE == "ctc" ]] && [[ $CTCPROT ]] && echo -n ",protocol=$CTCPROT"
+            echo
+        ) >> /etc/ccw.conf
+
+        OLDIFS=$IFS
+        IFS=,
+        read -r -a subch_array <<< "indexzero,$SUBCHANNELS"
+        IFS=$OLDIFS
+        devbusid=${subch_array[1]}
+        if [ "$NETTYPE" = "ctc" ]; then
+            driver="ctcm"
+        else
+            driver=$NETTYPE
+        fi
+
+        # shellcheck disable=SC2016
+        printf 'SUBSYSTEM=="net", ACTION=="add", DRIVERS=="%s", KERNELS=="%s", ENV{INTERFACE}=="?*", RUN+="/sbin/initqueue --onetime --unique --name cmsifup-$name /sbin/cmsifup $name"\n' "$driver" "$devbusid" > /etc/udev/rules.d/99-cms.rules
+        # remove the default net rules
+        rm -f -- /etc/udev/rules.d/91-default-net.rules
+        # shellcheck disable=SC2016
+        [[ -f /etc/udev/rules.d/90-net.rules ]] \
+            || printf 'SUBSYSTEM=="net", ACTION=="online", RUN+="/sbin/initqueue --onetime --env netif=$name source_hook initqueue/online"\n' >> /etc/udev/rules.d/99-cms.rules
+        udevadm control --reload
+        znet_cio_free
+    fi
+
+    if [[ $DASD ]] && [[ $DASD != "none" ]]; then
+        echo "$DASD" | normalize_dasd_arg > /etc/dasd.conf
+        echo "options dasd_mod dasd=$DASD" > /etc/modprobe.d/dasd_mod.conf
+        dasd_cio_free
+    fi
+
+    unset _do_zfcp
+    for i in ${!FCP_*}; do
+        echo "${!i}" | while read -r port rest || [ -n "$port" ]; do
+            case $port in
+                *.*.*) ;;
+
+                *.*)
+                    port="0.$port"
+                    ;;
+                *)
+                    port="0.0.$port"
+                    ;;
+            esac
+            echo "$port" "$rest" >> /etc/zfcp.conf
+        done
+        _do_zfcp=1
+    done
+    [[ $_do_zfcp ]] && zfcp_cio_free
+    unset _do_zfcp
+}
+
+[[ $CMSDASD ]] || CMSDASD=$(getarg "CMSDASD=")
+[[ $CMSCONFFILE ]] || CMSCONFFILE=$(getarg "CMSCONFFILE=")
+
+# Parse configuration
+if [ -n "$CMSDASD" -a -n "$CMSCONFFILE" ]; then
+    if readcmsfile "$CMSDASD" "$CMSCONFFILE"; then
+        ln -s /run/initramfs/"$CMSCONFFILE" /tmp/"$CMSCONFFILE"
+        ln -s /run/initramfs/"$CMSCONFFILE" /tmp/cms.conf
+        processcmsfile
+    fi
+fi