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　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。 . Prv8 Shell

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Current File : //lib/dracut/modules.d/95fcoe/parse-fcoe.sh

#!/bin/sh
#
# Supported formats:
# fcoe=<networkdevice>:<dcb|nodcb>:<fabric|vn2vn>
# fcoe=<macaddress>:<dcb|nodcb>:<fabric|vn2vn>
#
# Note currently only nodcb is supported, the dcb option is reserved for
# future use.
#
# Note letters in the macaddress must be lowercase!
#
# Examples:
# fcoe=eth0:nodcb:vn2vn
# fcoe=4a:3f:4c:04:f8:d7:nodcb:fabric

if ! getargbool 1 rd.fcoe -d -n rd.nofcoe ; then
	info "rd.fcoe=0: skipping fcoe"
	return 0
fi

[ -z "$fcoe" ] && fcoe=$(getarg fcoe=)

# If it's not set we don't continue
[ -z "$fcoe" ] && return

[ -e /sys/bus/fcoe/ctlr_create ] || modprobe -b -a fcoe || modprobe -b -a libfcoe || die "FCoE requested but kernel/initrd does not support FCoE"

initqueue --onetime modprobe -b -q bnx2fc

parse_fcoe_opts() {
    local OLDIFS="$IFS"
    local IFS=:
    set $fcoe
    IFS="$OLDIFS"

    case $# in
        2)
            fcoe_interface=$1
            fcoe_dcb=$2
            fcoe_mode="fabric"
            return 0
            ;;
        3)
            fcoe_interface=$1
            fcoe_dcb=$2
            fcoe_mode=$3
            return 0
            ;;
        7)
            fcoe_mac=$1:$2:$3:$4:$5:$6
            fcoe_dcb=$7
            fcoe_mode="fabric"
            return 0
            ;;
        8)
            fcoe_mac=$1:$2:$3:$4:$5:$6
            fcoe_dcb=$7
            fcoe_mode=$8
            return 0
            ;;
        *)
            warn "Invalid arguments for fcoe=$fcoe"
            return 1
            ;;
    esac
}

parse_fcoe_opts

if [ "$fcoe_interface" = "edd" ]; then
    if [ "$fcoe_dcb" != "nodcb" -a "$fcoe_dcb" != "dcb" ] ; then
        warn "Invalid FCoE DCB option: $fcoe_dcb"
    fi
    /sbin/initqueue --settled --unique /sbin/fcoe-edd $fcoe_dcb
else
    for fcoe in $(getargs fcoe=); do
        unset fcoe_mac
        unset fcoe_interface
        parse_fcoe_opts
        if [ "$fcoe_dcb" != "nodcb" -a "$fcoe_dcb" != "dcb" ] ; then
            warn "Invalid FCoE DCB option: $fcoe_dcb"
        fi
        . $(command -v fcoe-genrules.sh)
    done
fi

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