[dpdk-dev] LINUX VF

Nishant Verma vnish11 at gmail.com
Fri Nov 3 14:57:50 CET 2017


Issue Resolved.

This is because of NetworkManager service running on CentOs 7. After
stopping that service everything works fine.

On Mon, Oct 30, 2017 at 6:33 PM, Nishant Verma <vnish11 at gmail.com> wrote:

> Hi,
>
> I am trying to configure SRIOV on my SUPERMICRO BLADES.
> I assigned 10G NIC to igb_uio. After that created 4 VF's.
>
> Out of 4 VF's, 3 are used by DPDK App and one I am assigning to Linux
> kernel.
> Now when I am assigning IP to a virtual interface on top of Linux VF after
> PF is up. The first time it takes the IP but internally it just goes down
> and comes up again. That basically leads to change in MAC address of the
> virtual interface VF.
>
> After this, i am not able to send or receive any packet on a virtual
> interface on top of linuxVF. If I down everything on Linux side, then UP
> the interface and re-create the virtual on top of Linux VF then things
> works, becuase, in this case, MAC address of both the VF and virtual
> interface on top of VF are same.
>
> My Question is, Why linuxVF is going down? How can i stop it or can have
> same MAC address every time?
>
>
> ---
> This is when i assigned interface to linux VF
>
> [root at localhost aavila]# ifconfig enp2s16f7
> enp2s16f7: flags=4098<BROADCAST,MULTICAST>  mtu 1500
>         ether 02:7f:48:b1:a7:b9  txqueuelen 1000  (Ethernet)
>         RX packets 0  bytes 0 (0.0 B)
>         RX errors 0  dropped 0  overruns 0  frame 0
>         TX packets 0  bytes 0 (0.0 B)
>         TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
> ----
> After creating virtual NIC and assigning IP
>
> 7: enp2s16f7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state
> UP qlen 1000
>     link/ether f6:45:8f:03:ba:1a brd ff:ff:ff:ff:ff:ff
>     inet6 fe80::f445:8fff:fe03:ba1a/64 scope link
>        valid_lft forever preferred_lft forever
> 8: vlan2034 at enp2s16f7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UP
>     link/ether f6:45:8f:03:ba:1a brd ff:ff:ff:ff:ff:ff
>     inet 10.31.226.6/20 scope global vlan2034
>        valid_lft forever preferred_lft forever
>     inet6 fe80::f445:8fff:fe03:ba1a/64 scope link
>        valid_lft forever preferred_lft forever
> ---------
>
> After some seconds...
>
> 7: enp2s16f7: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state UP qlen 1000
>     link/ether 02:7f:48:b1:a7:b9 brd ff:ff:ff:ff:ff:ff
> 8: vlan2034 at enp2s16f7: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UP
>     link/ether f6:45:8f:03:ba:1a brd ff:ff:ff:ff:ff:ff
>     inet 10.31.226.6/20 scope global vlan2034
>        valid_lft forever preferred_lft forever
>
>
> ----
> Here is the dmesg output :
>
> [  320.341653] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  320.341686] ixgbevf 0000:02:10.7: NIC Link is Down
> [  322.338665] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  323.340775] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  324.341407] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  324.341428] ixgbevf 0000:02:10.7: NIC Link is Down
> [  326.338448] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  327.340536] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  328.341172] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  328.341194] ixgbevf 0000:02:10.7: NIC Link is Down
> [  328.341252] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  329.342992] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  330.343652] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  330.343698] ixgbevf 0000:02:10.7: NIC Link is Down
> [  330.343770] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  331.344292] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  333.344258] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  334.344630] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  334.344653] ixgbevf 0000:02:10.7: NIC Link is Down
> [  336.341439] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  380.276206] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  381.276826] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  381.276849] ixgbevf 0000:02:10.7: NIC Link is Down
> [  381.385871] IPv6: ADDRCONF(NETDEV_UP): enp2s16f7: link is not ready
> [  381.385874] 8021q: adding VLAN 0 to HW filter on device enp2s16f7
> [  381.386386] device enp2s16f7 entered promiscuous mode
> [  381.394896] IPv6: ADDRCONF(NETDEV_UP): vlan2034: link is not ready
> [  382.343248] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  382.353248] IPv6: ADDRCONF(NETDEV_CHANGE): vlan2034: link becomes ready
> [  383.353628] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  384.354004] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  385.354582] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  386.354958] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  386.355252] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s16f7: link becomes ready
> [  387.355899] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  388.356533] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  389.357654] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  390.358357] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  391.359263] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  392.359965] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  393.362737] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  393.362993] ixgbevf 0000:02:10.7: NIC Link is Down
> [  394.357568] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  395.359945] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  395.360161] ixgbevf 0000:02:10.7: NIC Link is Down
> [  395.360205] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
> [  397.355218] ixgbevf 0000:02:10.7 enp2s16f7: Polling for VF0 mailbox ack
> timedout
> [  397.355433] ixgbevf 0000:02:10.7: NIC Link is Down
> [  398.354374] ixgbevf 0000:02:10.7: NIC Link is Up 10 Gbps
>
>
>
>
>
>
> Rgds,
> Nishant
>



-- 
Rgds,
Nishant


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