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