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-rw-r--r--fdio.infra.ansible/roles/vpp_device/files/csit-initialize-vfs.sh73
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diff --git a/fdio.infra.ansible/roles/vpp_device/files/csit-initialize-vfs.sh b/fdio.infra.ansible/roles/vpp_device/files/csit-initialize-vfs.sh
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+#!/usr/bin/env bash
+
+# Copyright (c) 2021 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# CSIT SRIOV VF initialization and isolation.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(dirname $(readlink -e "${BASH_SOURCE[0]}"))"
+source "${SCRIPT_DIR}/csit-initialize-vfs-data.sh"
+
+# Initilize whitelisted NICs with maximum number of VFs.
+pci_idx=0
+for pci_addr in ${PCI_WHITELIST[@]}; do
+ if ! [[ ${PCI_BLACKLIST[*]} =~ "${pci_addr}" ]]; then
+ pci_path="/sys/bus/pci/devices/${pci_addr}"
+ # SR-IOV initialization
+ case "${1:-start}" in
+ "start" )
+ sriov_totalvfs=$(< "${pci_path}"/sriov_totalvfs)
+ ;;
+ "stop" )
+ sriov_totalvfs=0
+ ;;
+ esac
+ echo ${sriov_totalvfs} > "${pci_path}"/sriov_numvfs
+ # SR-IOV 802.1Q isolation
+ case "${1:-start}" in
+ "start" )
+ pf=$(basename "${pci_path}"/net/*)
+ for vf in $(seq "${sriov_totalvfs}"); do
+ # PCI address index in array (pairing siblings).
+ if [[ -n ${PF_INDICES[@]} ]]
+ then
+ vlan_pf_idx=${PF_INDICES[$pci_addr]}
+ else
+ vlan_pf_idx=$(( pci_idx % (${#PCI_WHITELIST[@]} / 2) ))
+ fi
+ # 802.1Q base offset.
+ vlan_bs_off=1100
+ # 802.1Q PF PCI address offset.
+ vlan_pf_off=$(( vlan_pf_idx * 100 + vlan_bs_off ))
+ # 802.1Q VF PCI address offset.
+ vlan_vf_off=$(( vlan_pf_off + vf - 1 ))
+ # VLAN string.
+ vlan_str="vlan ${vlan_vf_off}"
+ # MAC string.
+ mac5="$(printf '%x' ${pci_idx})"
+ mac6="$(printf '%x' $(( vf - 1 )))"
+ mac_str="mac ba:dc:0f:fe:${mac5}:${mac6}"
+ # Set 802.1Q VLAN id and MAC address
+ ip link set ${pf} vf $(( vf - 1 )) ${mac_str} ${vlan_str}
+ ip link set ${pf} vf $(( vf - 1 )) trust on
+ ip link set ${pf} vf $(( vf - 1 )) spoof off
+ done
+ pci_idx=$(( pci_idx + 1 ))
+ ;;
+ esac
+ rmmod i40evf
+ modprobe i40evf
+ fi
+done