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Hi Ashish, IMO, it is yes, no way to increase tx_queue_size for direct type interface ------- Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413 On Thu, Oct 26, 2017 at 3:38 PM, Ashish Kurian <ashishbnv@gmail.com> wrote: > Hi Yalan, > > In the previous email you mentioned "tx_queue_size='512' will not work in > the guest with direct type interface, in fact, no matt...

Hi Yalan and Michal, Thank you for your response. So what I understand is that I can change rx_queue size even if I use direct type interface and qemu driver as long as the driver is virtio. Am I right? If that is the case why am I getting the error saying that error: XML document failed to validate again...

Hi Yalan, In the previous email you mentioned "tx_queue_size='512' will not work in the guest with direct type interface, in fact, no matter what you set, it will not work and guest will get the default '256'. " So if I am using macvtap for my interfaces, then the device type wil...

...ther: 0 Combined: 1 ==> no multiqueue Current hardware settings: RX: 0 TX: 0 Other: 0 Combined: 1 # ethtool -g eth0 Ring parameters for eth0: Pre-set maximums: RX: *512* RX Mini: 0 RX Jumbo: 0 TX: 256 Current hardware settings: RX: *512* RX Mini: 0 RX Jumbo: 0 TX: 256 ------- Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413 On Thu, Oct 26, 2017 at 2:33 AM, Ashish Kurian <ashishbnv@gmail.com> wrote: > Hi Michal, > > An update to what I have already said : when I try adding <driver > name='qemu' txmode='iothread' ioeventfd='on' ev...

...ge"/> <model type="virtio"/> </interface> The 2 VMs can connect to each other via ipv4, but can not connect to each other via ipv6. Maybe it's related to some kernel parameters, but I don't know how to debug. Is there anyone who can help me? Thank you! BR, Yalan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20230711/7efe3e67/attachment.htm>

Dear Yalang, that did the trick. If I look in the NAT table of the bridge I can see the generated rules. Probably wouldn't have though about that ever. Thanks a lot! Best Sam On 29.12.18 06:51, Yalan Zhang wrote: > Hi Sam, > > You can find the rules by below command, and it looks as below:...

On 2020-07-06 10:01, Laine Stump wrote: > On 7/6/20 5:10 AM, Yalan Zhang wrote: > > > > Hi Laine, > > > > For the feature testing before, I only test the linux bridge setting as > > in 2), it works. > > Now I tried 1), to use macvtap bridge mode connected to the PF, it can > > not work as the hostdev interface can not ge...

...e to 10, it will succeed. # virsh destroy rhel7.2; virsh start rhel7.2 ;sleep 10; virsh detach-interface rhel7.2 network 52:54:00:98:c4:a0; sleep 2; virsh dumpxml rhel7.2 |grep /interface -B9 Domain rhel7.2 destroyed Domain rhel7.2 started Interface detached successfully ------- Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413

...nected to a Linux host bridge (created outside libvirt in the host system network config) that is attached to the PF (or alternately one of the VFs that isn't being used for VMs, or to another physical ethernet adapter on the host that is connected to the same network. ------- Best Regards, Yalan Zhang IRC: yalzhang On Sun, Mar 22, 2020 at 6:50 AM Laine Stump <laine@redhat.com> wrote: > On 3/21/20 1:08 AM, Yalan Zhang wrote: > > > In my understanding, the standby and primary hostdev interface may be in > > different subnet. > > There is only one hostdev devi...

...t' host='127.0.0.1' service='1234'/> </backend> </rng> (on host, there should be a egd daemon running on tcp 127.0.0.1:1234 # egd.pl --debug-client --nofork localhost:1234) Thank you very much and look forward for your response! ------- Best Regards, Yalan Zhang IRC: yalzhang Internal phone: 8389413

On 10/26/2017 10:38 AM, Ashish Kurian wrote: > Hi Yalan and Michal, > > Thank you for your response. So what I understand is that I can change > rx_queue size even if I use direct type interface and qemu driver as long > as the driver is virtio. Am I right? Yes. > If that is the case why am I getting > the error saying that > &...

On 7/8/20 10:02 AM, Ken Cox wrote: > > On 7/8/20 1:30 AM, Stefan Assmann wrote: >> On 2020-07-06 10:01, Laine Stump wrote: >>> On 7/6/20 5:10 AM, Yalan Zhang wrote: >>>> Hi Laine, >>>> >>>> For the feature testing before, I only test the linux bridge setting as >>>> in 2), it works. >>>> Now I tried 1), to use macvtap bridge mode connected to the PF, it can >>>> not work as th...

...interleave Element domain failed to validate content Failed. Try again? [y,n,i,f,?]: ----> press 'i' error: XML error: invalid mac address check value: 'next'. Valid values are "generated" and "static". Failed. Try again? [y,n,f,?]: ------- Best Regards, Yalan Zhang IRC: yalzhang

...pci' domain='0x0000' bus='0x03' slot='0x10' function='0x2'/> </forward> </network> (the address is VF's pci address, you can specify multiple addresses at once) # virsh net-define hostnet.xml # virsh net-start hostdev_net Hope it helps. BR Yalan On Sun, Apr 2, 2023 at 10:06?AM Paul B. Henson <henson at acm.org> wrote: > I'm planning to set up a libvirt/kvm system using a card with SR-IOV > support. I'd like to use the vf pool option rather than statically > assigning a vf to each vm. However, I'd also like eac...

On 7/6/20 5:10 AM, Yalan Zhang wrote: > > Hi Laine, > > For the feature testing before, I only test the linux bridge setting as > in 2), it works. > Now I tried 1), to use macvtap bridge mode connected to the PF, it can > not work as the hostdev interface can not get dhcp ip address on the guest. &...

.... The standby interface will get ip as 192.168.122.x, but after NAT, it will be in the same subnet of the vf. So after the VF is unplugged, the packet will still broadcast in the same subnet, and the vm will get the packet as the standby share the same mac. Right? Thank you! ------- Best Regards, Yalan Zhang IRC: yalzhang

...6.802150] pci 0000:00:01.4: Adding to iommu group 3 ... [ 7.866463] pci 0000:e0:00.2: Found IOMMU cap 0x40 [ 7.920222] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank). [ 7.927428] perf/amd_iommu: Detected AMD IOMMU #1 (2 banks, 4 counters/bank) ... ------- Best Regards, Yalan Zhang IRC: yalzhang

On 7/8/20 1:30 AM, Stefan Assmann wrote: > On 2020-07-06 10:01, Laine Stump wrote: >> On 7/6/20 5:10 AM, Yalan Zhang wrote: >>> Hi Laine, >>> >>> For the feature testing before, I only test the linux bridge setting as >>> in 2), it works. >>> Now I tried 1), to use macvtap bridge mode connected to the PF, it can >>> not work as the hostdev interface can...

Given the following network configuration: =========== <network> <name>osc_mgmt</name> <uuid>d93fe709-14ae-4a0e-8989-aeaa8c76c513</uuid> <forward mode='route'/> <bridge name='osc_mgmt' stp='on' delay='0'/> <mac address='52:54:00:3f:fe:10'/> <ip address='192.168.80.254'

...masq/osc_mgmt.hostsfile 52:54:00:2c:85:92,192.168.80.1,openstack-controller-00 But it makes me wonder...libvirt should be generating and managing this file right? Do I need to edit this myself or should libvirt be updating this file? If so then why isn't it? On Mon, Oct 30, 2017 at 5:21 AM, Yalan Zhang <yalzhang@redhat.com> wrote: > Please check the dnsmasq hostsfile, should have all the records there: > > # cat /var/lib/libvirt/dnsmasq/osc_mgmt.hostsfile > 52:54:00:2c:85:92,192.168.80.1,openstack-controller-00 > 52:54:00:e2:4b:25,192.168.80.2,openstack-database-00 &gt...