3 # This example script creates bonding network devices based on synthetic NIC
4 # (the virtual network adapter usually provided by Hyper-V) and the matching
5 # VF NIC (SRIOV virtual function). So the synthetic NIC and VF NIC can
6 # function as one network device, and fail over to the synthetic NIC if VF is
10 # - After configured vSwitch and vNIC with SRIOV, start Linux virtual
12 # - Run this scripts on the VM. It will create configuration files in
13 # distro specific directory.
14 # - Reboot the VM, so that the bonding config are enabled.
16 # The config files are DHCP by default. You may edit them if you need to change
17 # to Static IP or change other settings.
21 netvsc_cls={f8615163-df3e-46c5-913f-f2d2f965ed0e}
25 if [ -f /etc/redhat-release ];
27 cfgdir=/etc/sysconfig/network-scripts
29 elif grep -q 'Ubuntu' /etc/issue
33 elif grep -q 'SUSE' /etc/issue
35 cfgdir=/etc/sysconfig/network
38 echo "Unsupported Distro"
42 echo Detected Distro: $distro, or compatible
44 # Get a list of ethernet names
45 list_eth=(`cd $sysdir && ls -d */ | cut -d/ -f1 | grep -v bond`)
46 eth_cnt=${#list_eth[@]}
48 echo List of net devices:
50 # Get the MAC addresses
51 for (( i=0; i < $eth_cnt; i++ ))
53 list_mac[$i]=`cat $sysdir/${list_eth[$i]}/address`
54 echo ${list_eth[$i]}, ${list_mac[$i]}
57 # Find NIC with matching MAC
58 for (( i=0; i < $eth_cnt-1; i++ ))
60 for (( j=i+1; j < $eth_cnt; j++ ))
62 if [ "${list_mac[$i]}" = "${list_mac[$j]}" ]
64 list_match[$i]=${list_eth[$j]}
70 function create_eth_cfg_redhat {
71 local fn=$cfgdir/ifcfg-$1
75 echo TYPE=Ethernet >>$fn
76 echo BOOTPROTO=none >>$fn
77 echo UUID=`uuidgen` >>$fn
79 echo PEERDNS=yes >>$fn
80 echo IPV6INIT=yes >>$fn
85 function create_eth_cfg_pri_redhat {
86 create_eth_cfg_redhat $1 $2
89 function create_bond_cfg_redhat {
90 local fn=$cfgdir/ifcfg-$1
95 echo BOOTPROTO=dhcp >>$fn
96 echo UUID=`uuidgen` >>$fn
98 echo PEERDNS=yes >>$fn
99 echo IPV6INIT=yes >>$fn
100 echo BONDING_MASTER=yes >>$fn
101 echo BONDING_OPTS=\"mode=active-backup miimon=100 primary=$2\" >>$fn
104 function del_eth_cfg_ubuntu {
105 local fn=$cfgdir/interfaces
106 local tmpfl=$(mktemp)
108 local nic_start='^[ \t]*(auto|iface|mapping|allow-.*)[ \t]+'$1
109 local nic_end='^[ \t]*(auto|iface|mapping|allow-.*|source)'
111 awk "/$nic_end/{x=0} x{next} /$nic_start/{x=1;next} 1" $fn >$tmpfl
118 function create_eth_cfg_ubuntu {
119 local fn=$cfgdir/interfaces
121 del_eth_cfg_ubuntu $1
123 echo $'\n'auto $1 >>$fn
124 echo iface $1 inet manual >>$fn
125 echo bond-master $2 >>$fn
128 function create_eth_cfg_pri_ubuntu {
129 local fn=$cfgdir/interfaces
131 create_eth_cfg_ubuntu $1 $2
132 echo bond-primary $1 >>$fn
135 function create_bond_cfg_ubuntu {
136 local fn=$cfgdir/interfaces
138 del_eth_cfg_ubuntu $1
140 echo $'\n'auto $1 >>$fn
141 echo iface $1 inet dhcp >>$fn
142 echo bond-mode active-backup >>$fn
143 echo bond-miimon 100 >>$fn
144 echo bond-slaves none >>$fn
147 function create_eth_cfg_suse {
148 local fn=$cfgdir/ifcfg-$1
151 echo BOOTPROTO=none >>$fn
152 echo STARTMODE=auto >>$fn
155 function create_eth_cfg_pri_suse {
156 create_eth_cfg_suse $1
159 function create_bond_cfg_suse {
160 local fn=$cfgdir/ifcfg-$1
163 echo BOOTPROTO=dhcp >>$fn
164 echo STARTMODE=auto >>$fn
165 echo BONDING_MASTER=yes >>$fn
166 echo BONDING_SLAVE_0=$2 >>$fn
167 echo BONDING_SLAVE_1=$3 >>$fn
168 echo BONDING_MODULE_OPTS=\'mode=active-backup miimon=100 primary=$2\' >>$fn
171 function create_bond {
172 local bondname=bond$bondcnt
176 local class_id1=`cat $sysdir/$1/device/class_id 2>/dev/null`
177 local class_id2=`cat $sysdir/$2/device/class_id 2>/dev/null`
179 if [ "$class_id1" = "$netvsc_cls" ]
183 elif [ "$class_id2" = "$netvsc_cls" ]
191 echo $'\nBond name:' $bondname
193 echo configuring $primary
194 create_eth_cfg_pri_$distro $primary $bondname
196 echo configuring $secondary
197 create_eth_cfg_$distro $secondary $bondname
199 echo creating: $bondname with primary slave: $primary
200 create_bond_cfg_$distro $bondname $primary $secondary
202 let bondcnt=bondcnt+1
205 for (( i=0; i < $eth_cnt-1; i++ ))
207 if [ -n "${list_match[$i]}" ]
209 create_bond ${list_eth[$i]} ${list_match[$i]}