Hyunsun Moon | 4f9c1cd | 2021-06-03 09:15:55 -0700 | [diff] [blame] | 1 | #!/bin/bash |
| 2 | |
| 3 | {# |
| 4 | SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org> |
| 5 | SPDX-FileCopyrightText: © 2019 Intel Corporation |
| 6 | SPDX-License-Identifier: Apache-2.0 |
| 7 | |
| 8 | # copied from https://github.com/clearlinux/cloud-native-setup/blob/master/clr-k8s-examples/9-multi-network/systemd/sriov.sh |
| 9 | #} |
| 10 | # {{ ansible_managed }} |
| 11 | |
| 12 | set -o errexit |
| 13 | set -o pipefail |
| 14 | set -o nounset |
| 15 | set -x |
| 16 | |
| 17 | setup_pf() { |
| 18 | local pf=$1 |
| 19 | local num_vfs |
| 20 | |
| 21 | echo "Resetting PF $pf" |
| 22 | echo 0 | tee /sys/class/net/"$pf"/device/sriov_numvfs |
| 23 | num_vfs=$(cat /sys/class/net/"$pf"/device/sriov_totalvfs) |
| 24 | echo "Enabling $num_vfs VFs for $pf" |
| 25 | echo "$num_vfs" | tee /sys/class/net/"$pf"/device/sriov_numvfs |
| 26 | ip link set "$pf" up |
| 27 | sleep 1 |
| 28 | } |
| 29 | |
| 30 | vfio_bind() { |
| 31 | local pf=$1 |
| 32 | local pfpci |
| 33 | local num_vfs |
| 34 | |
| 35 | pfpci=$(readlink /sys/devices/pci*/*/*/net/"$pf"/device | awk '{print substr($1,10)}') |
| 36 | num_vfs=$(cat /sys/class/net/"$pf"/device/sriov_numvfs)/2 |
| 37 | |
| 38 | local vfpci |
| 39 | local mac |
| 40 | for ((idx = 0; idx < num_vfs; idx++)); do |
| 41 | local vfn="virtfn$idx" |
| 42 | |
| 43 | # shellcheck disable=SC2012 |
| 44 | vfpci=$(ls -l /sys/devices/pci*/*/"$pfpci" | awk -v vfn=$vfn 'vfn==$9 {print substr($11,4)}') |
| 45 | |
| 46 | # Capture and set MAC of the VF before unbinding from linux, for later use in CNI |
| 47 | mac=$(cat /sys/bus/pci*/*/"$vfpci"/net/*/address) |
| 48 | ip link set dev "$pf" vf $idx mac "$mac" |
| 49 | |
| 50 | # Bind VF to vfio-pci |
| 51 | echo "$vfpci" >/sys/bus/pci*/*/"$vfpci"/driver/unbind |
| 52 | echo "vfio-pci" >/sys/devices/pci*/*/"$vfpci"/driver_override |
| 53 | echo "$vfpci" >/sys/bus/pci/drivers/vfio-pci/bind |
| 54 | done |
| 55 | } |
| 56 | |
| 57 | for pf in "$@"; do |
| 58 | setup_pf "$pf" |
| 59 | vfio_bind "$pf" |
| 60 | done |