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#!/usr/bin/bash
# called by dracut
check() {
is_fcoe() {
block_is_fcoe "$1" || return 1
}
[[ $hostonly ]] || [[ $mount_needs ]] && {
for_each_host_dev_and_slaves is_fcoe || return 255
}
require_binaries dcbtool fipvlan lldpad ip readlink fcoemon fcoeadm tr || return 1
return 0
}
# called by dracut
depends() {
echo network rootfs-block
return 0
}
# called by dracut
installkernel() {
instmods fcoe libfcoe 8021q edd bnx2fc
}
get_vlan_parent() {
local link=$1
[ -d "$link" ] || return
read -r iflink < "$link"/iflink
for if in /sys/class/net/*; do
read -r idx < "$if"/ifindex
if [ "$idx" -eq "$iflink" ]; then
echo "${if##*/}"
fi
done
}
# called by dracut
cmdline() {
{
for c in /sys/bus/fcoe/devices/ctlr_*; do
[ -L "$c" ] || continue
read -r enabled < "$c"/enabled
read -r mode < "$c"/mode
[ "$enabled" -eq 0 ] && continue
if [ "$mode" = "VN2VN" ]; then
mode="vn2vn"
else
mode="fabric"
fi
d=$(
cd -P "$c" || exit
echo "$PWD"
)
i=${d%/*}
ifname=${i##*/}
read -r mac < "${i}"/address
s=$(dcbtool gc "${i##*/}" dcb 2> /dev/null | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
if [ -z "$s" ]; then
p=$(get_vlan_parent "${i}")
if [ "$p" ]; then
s=$(dcbtool gc "${p}" dcb 2> /dev/null | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
ifname=${p##*/}
fi
fi
if [ "$s" = "on" ]; then
dcb="dcb"
else
dcb="nodcb"
fi
# Some Combined Network Adapters(CNAs) implement DCB in firmware.
# Do not run software-based DCB or LLDP on CNAs that implement DCB.
# If the network interface provides hardware DCB/DCBX capabilities,
# DCB_REQUIRED in "/etc/fcoe/cfg-xxx" is expected to set to "no".
#
# Force "nodcb" if there's any DCB_REQUIRED="no"(child or vlan parent).
if grep -q '^[[:blank:]]*DCB_REQUIRED="no"' /etc/fcoe/cfg-"${i##*/}" &> /dev/null; then
dcb="nodcb"
fi
if [ "$p" ]; then
if grep -q '^[[:blank:]]*DCB_REQUIRED="no"' /etc/fcoe/cfg-"${p}" &> /dev/null; then
dcb="nodcb"
fi
fi
echo "ifname=${ifname}:${mac}"
echo "fcoe=${ifname}:${dcb}:${mode}"
done
} | sort | uniq
}
# called by dracut
install() {
inst_multiple ip dcbtool fipvlan lldpad readlink lldptool fcoemon fcoeadm tr
if [[ -e $dracutsysrootdir/etc/hba.conf ]]; then
inst_libdir_file 'libhbalinux.so*'
inst_simple "/etc/hba.conf"
fi
mkdir -m 0755 -p "$initdir/var/lib/lldpad"
mkdir -m 0755 -p "$initdir/etc/fcoe"
if [[ $hostonly_cmdline == "yes" ]]; then
local _fcoeconf
_fcoeconf=$(cmdline)
[[ $_fcoeconf ]] && printf "%s\n" "$_fcoeconf" >> "${initdir}/etc/cmdline.d/95fcoe.conf"
fi
inst_multiple "/etc/fcoe/cfg-*"
inst "$moddir/fcoe-up.sh" "/sbin/fcoe-up"
inst "$moddir/fcoe-edd.sh" "/sbin/fcoe-edd"
inst_hook pre-trigger 03 "$moddir/lldpad.sh"
inst_hook cmdline 99 "$moddir/parse-fcoe.sh"
inst_hook cleanup 90 "$moddir/cleanup-fcoe.sh"
inst_hook shutdown 40 "$moddir/stop-fcoe.sh"
dracut_need_initqueue
}