detect.sh

#!/bin/sh
for iface in /sys/class/net/*; do
    [ -f $iface ] || continue
    ip link set up dev ${iface##*/}
done
count=0
pci=""
for iface in /sys/class/net/*; do
    [ -f $iface/device/product ] || continue
    case "$(cat $iface/speed 2> /dev/null)" in
        10000)
            ip link set down dev ${iface##*/}
            ip link set name eth-10gb-$count dev ${iface##*/}
            ip link set up dev eth-10gb-$count
            count=$((count+1))
            pci=$(cat $iface/device/vendor):$(cat $iface/device/product)
            ;;
        "") continue ;;
        *)
            ip link set down dev ${iface##*/}
            ;;
    esac
done
[ $(count) -eq 2 ] || {
    for iface in /sys/class/net/*; do
        [ -f $iface/device/product ] || continue
        case ${iface##*/},$(cat $iface/device/vendor):$(cat $iface/device/product) in
            eth-10gb-0,*) continue ;;
            *,$pci)
                ip link set down dev ${iface##*/}
                ip link set name eth-10gb-1 dev ${iface##*/}
                ip link set up dev eth-10gb-1
                ;;
        esac
    done
}