Vhost-net kernel module is around for years so I will not he surprised that it is simply disabled in custom kernel built for mcbin.
— Damjan > On Jun 18, 2019, at 4:41 PM, Dave Barach via Lists.Fd.Io > <dbarach=cisco....@lists.fd.io> wrote: > > Dear Lijan, > > The aarch64 development resources in the LF data center are in need of > cleanup. I tried to use fdio-cavium5 @ 10.30.51.66 (Ubuntu1804), but I find > that the login credentials have been changed. > > I finally managed to gain access to fdio-mcbin3 @ 10.30.51.43 (Ubuntu1604). > It is in fact running Ubuntu 16.04, which is unsupported at this point. The > Linux 4.4 kernel can be expected to cause trouble. > > I had difficulty building a master/latest vpp image due to several warnings > not seen elsewhere. Since we validate every patch for aarch64, it’s likely a > case of tool chain bit rot. Anyhow, I finally managed to build an image. > > Here’s what I see: > > DBGvpp# create tap host-if-name lstack host-ip4-addr 192.168.10.2/24 > create tap: ioctl(VHOST_NET_SET_BACKEND): Bad address > > This error comes from virtio_vring_init (...), and seems completely > consistent with running over an old kernel, instead of a 4.15 kernel. This > may or may not have anything to do with the issue you reported. > > Unless folks clean up LF data center aarch64 development resources, we won’t > be able to help. It’s pretty clear that the issues with the tap/virtio driver > are aarch64-specific. Clean up includes making sure that credentials are > properly communicated, systems up to date / running e.g. Ubuntu 18.04, and > master/latest builds without having to hack things. > > Although it’s possible to build aarch64 vpp images on a Raspberry-Pi – I have > one, and I’ve done that – it takes measured-in-hours to build an image. I > don’t have that kind of time available. > > HTH... Dave > > > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Lijian Zhang > Sent: Tuesday, June 18, 2019 1:35 AM > To: vpp-dev@lists.fd.io > Cc: nd <n...@arm.com> > Subject: [vpp-dev] VPP tap interface issue on Arm servers > > Hi, > We tried to create a VPP tap interface, assigned ip address to both VPP and > Linux side, and then ping VPP tap interface via host interface, and vice > versa. > But ping failed on both side. > > With below ping via VPP tap interface for example, it seems VPP has sent out > packets, but there’s no any counter increasing on the interface of host side. > > Could you please suggest on this issue? > > DBGvpp# create tap > DBGvpp# set int ip address tap0 16.0.10.2/24 > DBGvpp# set int state tap0 up > > $ sudo ip a add 16.0.10.1/24 dev tap0 > > DBGvpp# clear interfaces > DBGvpp# clear errors > DBGvpp# clear runtime > DBGvpp# ping 16.0.10.1 > > Statistics: 5 sent, 0 received, 100% packet loss > > DBGvpp# show runtime > Thread 0 vpp_main (lcore 2) > Time 88.2, average vectors/node 1.00, last 128 main loops 0.00 per node 0.00 > vector rates in 0.0000e0, out 5.6688e-2, drop 5.6688e-2, punt 0.0000e0 > Name State Calls Vectors > Suspends Clocks Vectors/Call > api-rx-from-ring any wait 0 0 > 4 8.05e1 0.00 > dhcp-client-process any wait 0 0 > 1 8.00e1 0.00 > dpdk-process any wait 0 0 > 30 3.45e1 0.00 > drop active 5 5 > 0 6.30e1 1.00 > error-drop active 5 5 > 0 7.24e1 1.00 > fib-walk any wait 0 0 > 44 4.35e1 0.00 > ikev2-manager-process any wait 0 0 > 88 2.78e1 0.00 > ip-neighbor-scan-process any wait 0 0 > 2 6.50e1 0.00 > ip-route-resolver-process any wait 0 0 > 1 8.20e1 0.00 > ip4-glean active 5 5 > 0 9.50e2 1.00 > ip4-lookup active 5 5 > 0 1.39e2 1.00 > ip4-reassembly-expire-walk any wait 0 0 > 9 4.09e1 0.00 > ip6-icmp-neighbor-discovery-ev any wait 0 0 > 88 2.46e1 0.00 > ip6-reassembly-expire-walk any wait 0 0 > 9 4.06e1 0.00 > statseg-collector-process time wait 0 0 > 9 6.33e1 0.00 > tap0-output active 5 5 > 0 8.16e1 1.00 > tap0-tx active 5 5 > 0 7.20e1 1.00 > unix-cli-stdin active 0 0 > 56 6.18e2 0.00 > unix-epoll-input polling 25126436 0 > 0 3.14e1 0.00 > --------------- > Thread 1 vpp_wk_0 (lcore 6) > Time 88.2, average vectors/node 0.00, last 128 main loops 0.00 per node 0.00 > vector rates in 0.0000e0, out 0.0000e0, drop 0.0000e0, punt 0.0000e0 > Name State Calls Vectors > Suspends Clocks Vectors/Call > unix-epoll-input polling 45817 0 > 0 1.47e1 0.00 > virtio-input polling 46962827 0 > 0 2.96e1 0.00 > -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#13323): https://lists.fd.io/g/vpp-dev/message/13323 > Mute This Topic: https://lists.fd.io/mt/32103947/675642 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [dmar...@me.com] > -=-=-=-=-=-=-=-=-=-=-=-
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