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| -rwxr-xr-x | extras/scripts/vfctl | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/extras/scripts/vfctl b/extras/scripts/vfctl new file mode 100755 index 00000000000..8942a9cfe60 --- /dev/null +++ b/extras/scripts/vfctl @@ -0,0 +1,132 @@ +#!/bin/bash + +function die() { + echo "ERROR: $*" >&2 + exit 1 +} + +function show_vfs() { + path=$1 + netdev=$2 + printf "\nVirtual Functions:\n%-2s %-12s %-9s %-12s %-17s %s\n" \ + "ID" "PCI Addr" "PCI ID" "Driver" "MAC Addr" "Config" + for vf_path in ${path}/virtfn*; do + vf=$(basename $(readlink ${vf_path})) + vfid=$(basename ${vf_path//virtfn/}) + line=$(ip link show dev ${netdev} | grep "vf ${vfid}") + driver=$(basename $(readlink ${vf_path}/driver)) + pciid="$(cat ${vf_path}/vendor | cut -dx -f2):$(cat ${vf_path}/device | cut -dx -f2)" + mac=$(echo $line | sed -n -E -e 's/.*MAC ([0-9a-f:]+),.*/\1/p') + cfg=$(echo $line | cut -d, -f2-) + + printf "%-2s %-12s %-9s %-12s %-17s%s\n" \ + $vfid $vf $pciid $driver $mac "$cfg" + done +} +function get_pci_addr() { + local addr + if [ -d /sys/class/net/$2/device ]; then + addr=$(basename $(readlink /sys/class/net/${2}/device)) + else + addr=$2 + fi + if [ ! -d /sys/bus/pci/devices/${pci_addr} ]; then + die "PCI device $2 doesn't exist" + fi + eval "$1=${addr}" +} + +function show () { + get_pci_addr pci_addr $1 + path="/sys/bus/pci/devices/${pci_addr}" + + if [ ! -f ${path}/sriov_numvfs ]; then + die "PCI device $1 is not SR-IOV device" + fi + + printf "%-20s: %s\n" "PCI Address" ${pci_addr} + printf "%-20s: %s\n" "PCI ID" \ + "$(cat ${path}/vendor | cut -dx -f2):$(cat ${path}/device | cut -dx -f2)" + printf "%-20s: %s\n" "Driver name" $(basename $(readlink ${path}/driver)) + printf "%-20s: %s\n" "Driver Version" $(cat ${path}/driver/module/version) + printf "%-20s: %s\n" "PCI Link Speed (max)" "$(cat ${path}/current_link_speed) ($(cat ${path}/max_link_speed))" + printf "%-20s: %s\n" "PCI Link Width (max)" "$(cat ${path}/current_link_width) ($(cat ${path}/max_link_width))" + printf "%-20s: %s\n" "NUMA Node" $(cat ${path}/numa_node) + printf "%-20s: %s\n" "Number of VFs" $(cat ${path}/sriov_numvfs) + printf "%-20s: %s\n" "Total VFs" $(cat ${path}/sriov_totalvfs) + if [ -d ${path}/net/* ] ; then + netdev=$(basename ${path}/net/*) + netdev_path=${path}/net/${netdev} + printf "%-20s: %s\n" "Interface" ${netdev} + printf "%-20s: %s\n" "MAC Address" $(cat ${netdev_path}/address) + printf "%-20s: %s\n" "Speed" $(cat ${netdev_path}/speed) + printf "%-20s: %s\n" "State" $(cat ${netdev_path}/operstate) + fi + + [ $(cat ${path}/sriov_numvfs) -gt 0 ] && show_vfs ${path} ${netdev} +} + +function remove_all () { + get_pci_addr pci_addr $1 + path="/sys/bus/pci/devices/${pci_addr}" + [ $(cat ${path}/sriov_numvfs) -gt 0 ] || die "No VFs configured on $1" + echo 0 | sudo tee ${path}/sriov_numvfs > /dev/null + echo "VFs removed..." +} + +function create () { + get_pci_addr pci_addr $1 + path="/sys/bus/pci/devices/${pci_addr}" + [ $(cat ${path}/sriov_numvfs) -gt 0 ] && die "VFs already configured on $1" + [ "0$2" -gt 0 ] || die "Please specify number of VFs to create" + echo $2 | sudo tee ${path}/sriov_numvfs > /dev/null + [ -d ${path}/net/* ] || die "No net device for $1" + netdev=$(basename ${path}/net/*) + netdev_path=${path}/net/${netdev} + + mac_prefix=$(cat ${netdev_path}/address | cut -d: -f1,3,4,5,6 ) + for vf_path in ${path}/virtfn*; do + vf=$(basename $(readlink ${vf_path})) + vfid=$(basename ${vf_path//virtfn/}) + mac="${mac_prefix}:$(printf "%02x" ${vfid})" + sudo ip link set dev ${netdev} vf ${vfid} mac ${mac} + done + + [ $(cat ${path}/sriov_numvfs) -gt 0 ] && show_vfs ${path} ${netdev} +} + +function help() { + +cat << __EOF__ + +$0 show <dev> + Displays information about <dev> where <dev> is PCI address + or linux interface name. + +$0 remove-all <dev> + Remove all virtual functions from device <dev>. + +$0 remove-all <dev> <num> + Create <num> virtual functions on device<dev>. +__EOF__ +} + +case $1 in + show) + show $2 + ;; + create) + create $2 $3 + ;; + remove-all) + remove_all $2 + ;; + help) + help $2 + ;; + *) + echo "Please specify command (show, create, remove-all)" + help + ;; +esac + |