晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /lib/dracut/modules.d/95fcoe/

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Current File : //lib/dracut/modules.d/95fcoe/fcoe-up.sh
#!/bin/sh
#
# We get called like this:
# fcoe-up <network-device> <dcb|nodcb> <fabric|vn2vn>
#
# Note currently only nodcb is supported, the dcb option is reserved for
# future use.

PATH=/usr/sbin:/usr/bin:/sbin:/bin
type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
type ip_to_var >/dev/null 2>&1 || . /lib/net-lib.sh

# Huh? Missing arguments ??
[ -z "$1" -o -z "$2" ] && exit 1

netif=$1
dcb=$2
mode=$3
vlan="yes"

iflink=$(cat /sys/class/net/$netif/iflink)
ifindex=$(cat /sys/class/net/$netif/ifindex)
if [ "$iflink" != "$ifindex" ] ; then
    # Skip VLAN devices
    exit 0
fi

ip link set dev $netif up
linkup "$netif"

# Some fcoemon implementations expect --syslog=true
syslogopt="--syslog"
if fcoemon -h|grep syslog|grep -q yes; then
    fcoemonyes="$syslogopt=yes"
fi


netdriver=$(readlink -f /sys/class/net/$netif/device/driver)
netdriver=${netdriver##*/}

write_fcoemon_cfg() {
    [ -f /etc/fcoe/cfg-$netif ] && return
    echo FCOE_ENABLE=\"yes\" > /etc/fcoe/cfg-$netif
    if [ "$dcb" = "dcb" ]; then
        echo DCB_REQUIRED=\"yes\" >> /etc/fcoe/cfg-$netif
    else
        echo DCB_REQUIRED=\"no\" >> /etc/fcoe/cfg-$netif
    fi
    if [ "$vlan" = "yes" ]; then
	    echo AUTO_VLAN=\"yes\" >> /etc/fcoe/cfg-$netif
    else
	    echo AUTO_VLAN=\"no\" >> /etc/fcoe/cfg-$netif
    fi
    if [ "$mode" = "vn2vn" ] ; then
        echo MODE=\"vn2vn\" >> /etc/fcoe/cfg-$netif
    else
        echo MODE=\"fabric\" >> /etc/fcoe/cfg-$netif
    fi
}

if [ "$netdriver" = "bnx2x" ]; then
    # If driver is bnx2x, do not use /sys/module/fcoe/parameters/create but fipvlan
    modprobe 8021q
    udevadm settle --timeout=30
    # Sleep for 13 s to allow dcb negotiation
    sleep 13
    fipvlan "$netif" -c -s
    need_shutdown
    exit
fi
if [ "$dcb" = "dcb" ]; then
    # wait for lldpad to be ready
    i=0
    while [ $i -lt 60 ]; do
        lldptool -p && break
        info "Waiting for lldpad to be ready"
        sleep 1
        i=$(($i+1))
    done

    while [ $i -lt 60 ]; do
        dcbtool sc "$netif" dcb on && break
        info "Retrying to turn dcb on"
        sleep 1
        i=$(($i+1))
    done

    while [ $i -lt 60 ]; do
        dcbtool sc "$netif" pfc e:1 a:1 w:1 && break
        info "Retrying to turn dcb on"
        sleep 1
        i=$(($i+1))
    done

    while [ $i -lt 60 ]; do
        dcbtool sc "$netif" app:fcoe e:1 a:1 w:1 && break
        info "Retrying to turn fcoe on"
        sleep 1
        i=$(($i+1))
    done

    sleep 1
fi
write_fcoemon_cfg
fcoemon $syslogopt

need_shutdown

haha - 2025