Bug 678488
| Summary: | guest can't get ip when add vf as an interface to macvtap | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Chao Yang <chayang> |
| Component: | qemu-kvm | Assignee: | Alex Williamson <alex.williamson> |
| Status: | CLOSED DUPLICATE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.1 | CC: | akong, dwu, juzhang, michen, mkenneth, tburke, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-02-28 21:08:51 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 580954 | ||
Is the PF eth device that's associated with the VF (03:00.1) ifconfig'd up? 82576 VFs have vlan and mac spoof filtering and the driver always configures it on. We cannot support macvtap on VFs until the driver provides a way to de-configure this security feature. *** This bug has been marked as a duplicate of bug 655013 *** |
Description of problem: Version-Release number of selected component (if applicable): # rpm -qa|grep qemu-kvm qemu-kvm-debuginfo-0.12.1.2-2.144.el6.x86_64 qemu-kvm-0.12.1.2-2.144.el6.x86_64 qemu-kvm-tools-0.12.1.2-2.144.el6.x86_64 # uname -r 2.6.32-115.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1.generate vfs, vf can get ip # ethtool -i eth34 driver: igbvf version: 1.0.8-k0 firmware-version: N/A bus-info: 0000:03:10.1 # ifconfig eth34 eth34 Link encap:Ethernet HWaddr 2A:F0:30:E2:6B:32 inet addr:10.66.73.75 Bcast:10.66.73.255 Mask:255.255.254.0 inet6 addr: fe80::28f0:30ff:fee2:6b32/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3215 errors:0 dropped:0 overruns:0 frame:0 TX packets:45 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:283516 (276.8 KiB) TX bytes:6713 (6.5 KiB) 2.create a macvtap device ip link add link eth34 dev macvtap0 type macvtap ip link set macvtap0 address 2A:F0:30:32:0B:12 up ip link show macvtap0 22: macvtap0@eth34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 500 link/ether 2a:f0:30:32:0b:12 brd ff:ff:ff:ff:ff:ff 3.boot a guest with vhost=on # /usr/libexec/qemu-kvm -M rhel6.1.0 -enable-kvm -m 4096 -smp 4 -cpu qemu64,+sse2,+x2apic -name rhel6.1 -uuid e81ebb81-cd9f-4a1e-a10f-c2cfd8d1b4ba -rtc base=localtime -boot c -drive file=/root/images-rhel6.1/rhel6.1-ide.qcow2,if=none,id=drive-ide0-0-0,media=disk,format=qcow2,cache=none -device ide-drive,drive=drive-ide0-0-0,id=ide0-0-0 -netdev tap,id=hostnet0,vhost=on,fd=5 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=2A:F0:30:32:0B:12 5<>/dev/tap22 -usb -device usb-tablet,id=input0 -vnc :1 -monitor stdio -balloon none Actual results: In guest, nic can't get ip, hope following message may help: Feb 19 00:00:03 localhost kernel: IPv6 over IPv4 tunneling driver Feb 19 00:00:03 localhost kernel: sit0: Disabled Privacy Extensions Feb 19 00:00:03 localhost kernel: lo: Disabled Privacy Extensions Feb 19 00:00:07 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 3 Feb 19 00:00:10 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 7 Feb 19 00:00:17 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 16 Feb 19 00:00:33 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 14 Feb 19 00:00:47 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 18 Feb 19 00:01:05 localhost dhclient: DHCPDISCOVER on eth5022 to 255.255.255.255 port 67 interval 3 Feb 19 00:01:08 localhost dhclient: No DHCPOFFERS received. Expected results: In guest, nic can get ip. Additional info: If add pf as an interface to macvtap, guest can get ip successfully.