#!/bin/bash # called by dracut cmdline() { is_zfcp() { local _dev=$1 local _devpath _devpath=$( cd -P /sys/dev/block/"$_dev" || exit echo "$PWD" ) local _sdev _scsiid _hostno _lun _wwpn _ccw _port_type local _allow_lun_scan _is_npiv _allow_lun_scan=$(cat /sys/module/zfcp/parameters/allow_lun_scan) [ "${_devpath#*/sd}" == "$_devpath" ] && return 1 _sdev="${_devpath%%/block/*}" [ -e "${_sdev}"/fcp_lun ] || return 1 _scsiid="${_sdev##*/}" _hostno="${_scsiid%%:*}" [ -d /sys/class/fc_host/host"${_hostno}" ] || return 1 _port_type=$(cat /sys/class/fc_host/host"${_hostno}"/port_type) case "$_port_type" in NPIV*) _is_npiv=1 ;; esac _ccw=$(cat "${_sdev}"/hba_id) if [ "$_is_npiv" ] && [ "$_allow_lun_scan" = "Y" ]; then echo "rd.zfcp=${_ccw}" else _lun=$(cat "${_sdev}"/fcp_lun) _wwpn=$(cat "${_sdev}"/wwpn) echo "rd.zfcp=${_ccw},${_wwpn},${_lun}" fi return 0 } [[ $hostonly ]] || [[ $mount_needs ]] && { for_each_host_dev_and_slaves_all is_zfcp } | sort | uniq } # called by dracut check() { local _arch=${DRACUT_ARCH:-$(uname -m)} local _ccw [ "$_arch" = "s390" -o "$_arch" = "s390x" ] || return 1 [[ $hostonly ]] || [[ $mount_needs ]] && { found=0 for _ccw in /sys/bus/ccw/devices/*/host*; do [ -d "$_ccw" ] || continue found=$((found + 1)) done [ $found -eq 0 ] && return 255 } return 0 } # called by dracut depends() { echo bash return 0 } # called by dracut install() { inst_hook cmdline 30 "$moddir/parse-zfcp.sh" if [[ $hostonly_cmdline == "yes" ]]; then local _zfcp for _zfcp in $(cmdline); do printf "%s\n" "$_zfcp" >> "${initdir}/etc/cmdline.d/94zfcp.conf" done fi if [[ $hostonly ]]; then inst_rules_wildcard "51-zfcp-*.rules" inst_rules_wildcard "41-zfcp-*.rules" fi }