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On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Allow user configuring RXCSUM separately with ethtool -K, > reusing the existing virtnet_set_guest_offloads helper > that configures RXCSUM for XDP. This is conditional on > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > Cc: Michael S. Tsirkin <mst at redhat.com> > Cc: Jason Wang <jasowang at redhat.com> &...

On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Allow user configuring RXCSUM separately with ethtool -K, > reusing the existing virtnet_set_guest_offloads helper > that configures RXCSUM for XDP. This is conditional on > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > Cc: Michael S. Tsirkin <mst at redhat.com> > Cc: Jason Wang <jasowang at redhat.com> &...

...e, Sep 29, 2020 at 3:25 AM Michael S. Tsirkin <mst at redhat.com> wrote: > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > reusing the existing virtnet_set_guest_offloads helper > > > that configures RXCSUM for XDP. This is conditional on > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > Cc: Michael S. Tsirkin <mst at redhat.com> &gt...

...e, Sep 29, 2020 at 3:25 AM Michael S. Tsirkin <mst at redhat.com> wrote: > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > reusing the existing virtnet_set_guest_offloads helper > > > that configures RXCSUM for XDP. This is conditional on > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > Cc: Michael S. Tsirkin <mst at redhat.com> &gt...

On Tue, Sep 29, 2020 at 3:25 AM Michael S. Tsirkin <mst at redhat.com> wrote: > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > Allow user configuring RXCSUM separately with ethtool -K, > > reusing the existing virtnet_set_guest_offloads helper > > that configures RXCSUM for XDP. This is conditional on > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > Cc: Michael S. Tsirkin <mst at redhat.com> > > Cc: Jason Wang &lt...

On Mon, Sep 28, 2020 at 5:42 AM <xiangxia.m.yue at gmail.com> wrote: > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > Allow user configuring RXCSUM separately with ethtool -K, > reusing the existing virtnet_set_guest_offloads helper > that configures RXCSUM for XDP. This is conditional on > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > Cc: Michael S. Tsirkin <mst at redhat.com> > Cc: Jason Wang <jasowang at redhat.com> &g...

...M Michael S. Tsirkin <mst at redhat.com> wrote: > > > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > > reusing the existing virtnet_set_guest_offloads helper > > > > that configures RXCSUM for XDP. This is conditional on > > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > > > Cc: Michael S. Tsirkin <...

...mst at redhat.com> wrote: > > > > > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > > > reusing the existing virtnet_set_guest_offloads helper > > > > > that configures RXCSUM for XDP. This is conditional on > > > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > > > > > Cc...

...mst at redhat.com> wrote: > > > > > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > > > reusing the existing virtnet_set_guest_offloads helper > > > > > that configures RXCSUM for XDP. This is conditional on > > > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > > > > > Cc...

...te: > > > > > > > > > > On Mon, Sep 28, 2020 at 11:39:15AM +0800, xiangxia.m.yue at gmail.com wrote: > > > > > > From: Tonghao Zhang <xiangxia.m.yue at gmail.com> > > > > > > > > > > > > Allow user configuring RXCSUM separately with ethtool -K, > > > > > > reusing the existing virtnet_set_guest_offloads helper > > > > > > that configures RXCSUM for XDP. This is conditional on > > > > > > VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. > > > > > > > &g...

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Allow user configuring RXCSUM separately with ethtool -K, reusing the existing virtnet_set_guest_offloads helper that configures RXCSUM for XDP. This is conditional on VIRTIO_NET_F_CTRL_GUEST_OFFLOADS. Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Jason Wang <jasowang at redhat.com> Signed-off-by: Tonghao Zhang &l...

Hi all, I have two HP DL145 G1 machines, running centos4 (2.6.9-22.0.2.ELsmp). Nics are recognized as: eth0: Tigon3 [partno(BCM95704) rev 2002 PHY(5704)] (PCIX:100MHz:64-bit) 10/100/1000BaseT Ethernet 00:00:1a:19:f1:05 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap [1] eth1: Tigon3 [partno(BCM95704) rev 2002 PHY(5704)] (PCIX:100MHz:64-bit) 10/100/1000BaseT Ethernet 00:00:1a:19:f1:04 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] Split[0] WireSpeed[1] TSOcap [1] Both machines are wired in the sam...

...RTIO_NET_F_GUEST_CSUM virtio feature is available, the guest > does not have to calculate the checksums on all received packets. This > is pretty much the same feature as RX checksum offloading on real > network cards, so the virtio-net driver should report this by setting > the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she > can see whether the virtio-net interface has to calculate RX checksums > or not. > > Signed-off-by: Thomas Huth <thuth at linux.vnet.ibm.com> Can one of the virtio_net folks please review this? Thanks.

If the VIRTIO_NET_F_GUEST_CSUM virtio feature is available, the guest does not have to calculate the checksums on all received packets. This is pretty much the same feature as RX checksum offloading on real network cards, so the virtio-net driver should report this by setting the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she can see whether the virtio-net interface has to calculate RX checksums or not. Signed-off-by: Thomas Huth <thuth at linux.vnet.ibm.com> --- drivers/net/virtio_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/n...

If the VIRTIO_NET_F_GUEST_CSUM virtio feature is available, the guest does not have to calculate the checksums on all received packets. This is pretty much the same feature as RX checksum offloading on real network cards, so the virtio-net driver should report this by setting the NETIF_F_RXCSUM flag. When the user now runs "ethtool -k", he or she can see whether the virtio-net interface has to calculate RX checksums or not. Signed-off-by: Thomas Huth <thuth at linux.vnet.ibm.com> --- drivers/net/virtio_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/n...

...-net > control queue. kvmtool however does not have a control queue that supports > offload changing (VIRTIO_NET_F_CTRL_GUEST_OFFLOADS is not advertised) > > The netdev features have changed due to validation checks in > netdev_fix_features(): > > if (!(features & NETIF_F_RXCSUM)) { > /* NETIF_F_GRO_HW implies doing RXCSUM since every packet > * successfully merged by hardware must also have the > * checksum verified by hardware. If the user does not > * want to enable RXCSUM, logically, we should disable GRO_HW. > */ > if (features & NETIF...

...ceed system mbuf max, using default instead! ix0: Ethernet address: 90:e2:ba:29:c0:54 ix0: PCI Express Bus: Speed 5.0Gb/s Width x8 ... but it apperas as ix0/ix1, manuals only mention ixgb/e, and ifconfig: ix0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCS UM,TSO4,VLAN_HWTSO> ether 90:e2:ba:29:c0:54 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect status: no carrier ix1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500...

...osts.org:/reports-14-15.tgz Thanks for help, -dennis --------------BEGIN System information--------------- It's a stock FreeBSD 9.1, yet the hostname is called freenas. Don't be confused. igb0: flags=8c02<BROADCAST,OACTIVE,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO> ether 00:25:90:34:c1:12 nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> media: Ethernet autoselect (1000baseT <full-duplex>) status: active igb1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu...

Hi I installed the following driver. http://www.f.csce.kyushu-u.ac.jp/~shigeaki//software/freebsd-nfe.html Before I had the nve driver which was unstable on this server and on a prior server in both cases causing either spontaneous reboot or just a crash when under load. So far touchwood the nfe driver has stayed up and running at almost 3 days uptime and has had some stress. I know the driver

From: Tonghao Zhang <xiangxia.m.yue at gmail.com> Open vSwitch and Linux bridge will disable LRO of the interface when this interface added to them. Now when disable the LRO, the virtio-net csum is disable too. That drops the forwarding performance. Fixes: e59ff2c49ae1 ("virtio-net: disable guest csum during XDP set") Cc: Michael S. Tsirkin <mst at redhat.com> Cc: Jason