TrueNAS Scale SR-IOV Init Script

sriov_net.sh

#!/bin/sh

PF='ens1f${p}'
VF=${PF}'v${v}'

NUM_PF=2

# space seperated number of virtual functions per physical function
NUM_VF=3

# space seperated physical,virtual list
DHCP="1,0"

LF='/var/lib/dhcp/dhclient.leases.'${VF}
PIDF='/var/run/dhclient.'${VF}'.pid'

MAX_RETRIES=2

up_iface() {
        IFACE="$1"

        RETRIES=0

        until $(ip link set "$IFACE" up >/dev/null 2>&1); do
                sleep 1

                [ $RETRIES -eq $MAX_RETRIES ] && return 1

                RETRIES=$(expr $RETRIES + 1)
        done

        return 0
}

# SR-IOV
for p in $(seq 0 $(expr $NUM_PF - 1)); do
        IFACE=$(eval echo $PF)
        IFACE_SYSNET="/sys/class/net/$IFACE"
        IFACE_NUM_VF_SYSNET="$IFACE_SYSNET/device/sriov_numvfs"
        IFACE_NUM_VF=$(echo $NUM_VF | cut -d " " -f $(expr $p + 1))

        [ -e "$IFACE_SYSNET" ] || continue

        #grep -qsiFv "0" "$IFACE_SYSNET/carrier" || continue

        up_iface "$IFACE" || continue

        [ -e "$IFACE_NUM_VF_SYSNET" ] || continue

        [ $IFACE_NUM_VF -eq 0 ] && continue

        echo -n "$IFACE_NUM_VF" > "$IFACE_NUM_VF_SYSNET"

        sleep 1

        for v in $(seq 0 $(expr $IFACE_NUM_VF - 1)); do
                IFACE=$(eval echo $VF)

                up_iface "$IFACE"
        done
done

# DHCP
while IFS=',' read p v; do
        IFACE=$(eval echo $VF)
        LEASEFILE=$(eval echo $LF)
        PIDFILE=$(eval echo $PIDF)
        IFACE_SYSNET="/sys/class/net/$IFACE"

        if [ ! -f "$PIDFILE" ] && [ -e "$IFACE_SYSNET" ] && $(grep -qsiFv "0" "$IFACE_SYSNET/carrier"); then
                nohup dhclient -lf "$LEASEFILE" -pf "$PIDFILE" "$IFACE" >/dev/null 2>&1 &
        fi
done <<-EOF
$(echo $DHCP | tr ' ' '\n')
EOF