Date: Tue, 22 Nov 2016 10:31:51 +0000 From: Steven Crangle <Steven@stream-technologies.com> To: FreeBSD Net <freebsd-net@freebsd.org> Subject: Looking for some help with netmap/bhyve Message-ID: <DB5PR07MB1685DAA40193595950A464FB9BB40@DB5PR07MB1685.eurprd07.prod.outlook.com>
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Hi, I've recently been trying to boot up several bhyves so that I can test netm= ap communication between instances. The problem is, no matter what configur= ation I try, the guest vm running in bhyve completely hangs and becomes unu= sable as soon as a packet hits the netmap interface. When testing with pkt-= gen, the TX side successfully starts sending packets, but the RX side will = reliable freeze with the only option being killing the bhyve process. The bhyve command used for the above test was: bhyve -c 1 -s 0,hostbridge -s 1,lpc -s 2,virtio-blk,/dev/zvol/zroot/vip= er1vol -s 3,virtio-net,tap0,mac=3D00:01:23:45:67:83 -s 4,virtio-net,tap4= -l com1,/dev/nmdm0A -A -H -P -m 6g viper1 & bhyve -c 1 -s 0,hostbridge -s 1,lpc -s 2,virtio-blk,/dev/zvol/zroot/vip= er2vol -s 3,virtio-net,tap1,mac=3D00:01:23:45:67:84 -s 4,virtio-net,tap5= -l com1,/dev/nmdm1A -A -H -P -m 6g viper2 For this test the host OS was FreeBSD-11.0-p3 and the guest OS was FreeBSD-= 11.0-p3. After failing to get this solution working, I pulled down the source from t= he following url and installed it on the host box: https://svnweb.freebsd.org/socsvn/soc2016/vincenzo/head/ I then ran the following commands to try and bring up the machines using th= e ptnetmap interface (the guest still running 11.0p3) : bhyve -c 1 -s 0,hostbridge -s 1,lpc -s 1:1,virtio-blk,/dev/zvol/zroot/v= iper1vol -s 2:0,virtio-net,tap0,mac=3D00:01:23:45:67:83 -s 2:1,ptnetmap-= memdev -s 2:2,ptnet,vale0:0 -l com1,/dev/nmdm0A -A -H -P -m 6g viper1 & bhyve -c 1 -s 0,hostbridge -s 1,lpc -s 1:1,virtio-blk,/dev/zvol/zroot/v= iper2vol -s 2:0,virtio-net,tap1,mac=3D00:01:23:45:67:84 -s 2:1,ptnetmap-= memdev -s 2:2,ptnet,vale0:1 -l com1,/dev/nmdm1A -A -H -P -m 6g viper2 With the above commands the vm's fail to boot with the following message: ptnet_init: failed to get ptnetmap Output in /var/log/messages seems to just show the ptnetmap driver allocati= ng one RX/TX ring for each vm, while bringing the device up, the device the= n goes down and the above error is seen in the console. Is there something I'm doing wrong with regards to running netmap or ptnetm= ap within a bhyve? Any pointers in the right direction will be much appreci= ated! Kind Regards Steven ________________________________ [Stream Logo] Steven Crangle Systems Developer | Stream Technologies | Glasgow, UK [http://www.stream-technologies.com/img/phone.png] +44 (0)844 800 8520 | [http://www.stream-technologies.com/img/mouse.png] www.stream-technologies.com<http://www.stream-technologies.com/>
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