Re: [dpdk-dev] Under Ovs-2.8.0 + DPDK-17.05-rc1, can't add port which using mlx5 driver onto bridge br0

[Sam <batmanustc@gmail.com>]

Hi all,

this is fixed by adding "LDFLAGS=-libverbs" while making.

2018-03-29 10:29 GMT+08:00 Sam <batmanustc@gmail.com>:

> KNI also works
>
> 2018-03-29 10:03 GMT+08:00 Sam <batmanustc@gmail.com>:
>
>> But testpmd at the same version of DPDK is OK, like this:
>>
>> [gangyewei@yf-mos-test-net07 dpdk]$ sudo /usr/local/share/openvswitch/scripts/dpdk_nic_bind
>>> --status
>>> Network devices using DPDK-compatible driver
>>> ============================================
>>> <none>
>>> Network devices using kernel driver
>>> ===================================
>>> ...
>>> 0000:03:00.0 'MT27640 Family' if=eth4 drv=mlx5_core unused=igb_uio
>>> 0000:03:00.1 'MT27640 Family' if=eth5 drv=mlx5_core unused=igb_uio
>>> 0000:03:00.2 'MT27641 Family' if=enp3s0f2 drv=mlx5_core unused=igb_uio
>>> *Active*
>>> ...
>>> =====================
>>> <none>
>>> [gangyewei@yf-mos-test-net07 dpdk]$ sudo x86_64-native-linuxapp-gcc/app/testpmd
>>> -c 0x40004 -n 4 -w 0000:03:00.0 -w 0000:03:00.1 -- -i
>>> ...
>>> EAL: Support maximum 128 logical core(s) by configuration.
>>> EAL: Detected 32 lcore(s)
>>> EAL: Probing VFIO support...
>>> EAL: Module /sys/module/vfio_pci not found! error 2 (No such file or
>>> directory)
>>> EAL: VFIO modules not loaded, skipping VFIO support...
>>> EAL: Module /sys/module/vfio_pci not found! error 2 (No such file or
>>> directory)
>>> EAL: Setting up physically contiguous memory...
>>> ...
>>> EAL: PCI device 0000:03:00.0 on NUMA socket 0
>>> EAL:   probe driver: 15b3:1017 net_mlx5
>>> EAL: PCI device 0000:03:00.1 on NUMA socket 0
>>> EAL:   probe driver: 15b3:1017 net_mlx5
>>> Interactive-mode selected
>>> Configuring Port 0 (socket 0)
>>> Port 0: EC:0D:9A:8E:D0:9C
>>> Configuring Port 1 (socket 0)
>>> Port 1: EC:0D:9A:8E:D0:9D
>>> Checking link statuses...
>>> Port 0 Link Up - speed 10000 Mbps - full-duplex
>>> Port 1 Link Up - speed 10000 Mbps - full-duplex
>>> Done
>>> testpmd>
>>
>>
>> testpmd> set fwd mac
>>> Set mac packet forwarding mode
>>> testpmd> srat
>>> Command not found
>>> testpmd> start
>>> mac packet forwarding - ports=2 - cores=1 - streams=2 - NUMA support
>>> disabled, MP over anonymous pages disabled
>>> Logical Core 18 (socket 0) forwards packets on 2 streams:
>>>   RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
>>>   RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
>>>   mac packet forwarding - CRC stripping disabled - packets/burst=32
>>>   nb forwarding cores=1 - nb forwarding ports=2
>>>   RX queues=1 - RX desc=128 - RX free threshold=0
>>>   RX threshold registers: pthresh=0 hthresh=0 wthresh=0
>>>   TX queues=1 - TX desc=512 - TX free threshold=0
>>>   TX threshold registers: pthresh=0 hthresh=0 wthresh=0
>>>   TX RS bit threshold=0 - TXQ flags=0x0
>>> testpmd>
>>
>>
>> 2018-03-28 20:49 GMT+08:00 Nélio Laranjeiro <nelio.laranjeiro@6wind.com>:
>>
>>> On Wed, Mar 28, 2018 at 08:20:00PM +0800, Sam wrote:
>>> > Hi all,
>>> >
>>> > I'm using Ovs-2.8.0 + DPDK-17.05-rc1 with two netdev using mlx5 driver,
>>> > like this:
>>> >
>>> > $ sudo /usr/local/share/openvswitch/scripts/dpdk_nic_bind --status
>>> > > Network devices using DPDK-compatible driver
>>> > > ============================================
>>> > > <none>
>>> > > Network devices using kernel driver
>>> > > ===================================
>>> > > ...
>>> > > 0000:03:00.0 'MT27640 Family' if=eth4 drv=mlx5_core unused=igb_uio
>>> > > 0000:03:00.1 'MT27640 Family' if=eth5 drv=mlx5_core unused=igb_uio
>>> > > 0000:03:00.2 'MT27641 Family' if=enp3s0f2 drv=mlx5_core
>>> unused=igb_uio
>>> > > *Active*
>>> > > ...
>>> > > =====================
>>> > > <none>
>>> >
>>> >
>>> > When I start ovs-vswitchd, and add port onto br0, I got errors like
>>> this:
>>> >
>>> > libibverbs: Warning: no userspace device-specific driver found for
>>> > > /sys/class/infiniband_verbs/uverbs2
>>> >
>>> >
>>> > and git errors in ovs-vswitchd.log like this:
>>> >
>>> > 2018-03-28T09:34:25.687Z|00120|dpdk|INFO|EAL: PCI device 0000:03:00.0
>>> on
>>> > > NUMA socket 0
>>> > > 2018-03-28T09:34:25.687Z|00121|dpdk|INFO|EAL:   probe driver:
>>> 15b3:1017
>>> > > net_mlx5
>>> > > 2018-03-28T09:34:25.687Z|00122|dpdk|WARN|EAL: Requested device
>>> > > 0000:03:00.0 cannot be used
>>> > > 2018-03-28T09:34:25.687Z|00123|dpdk|ERR|EAL: Driver cannot attach
>>> the
>>> > > device (0000:03:00.0)
>>> > > 2018-03-28T09:34:25.687Z|00124|netdev_dpdk|WARN|Error attaching
>>> device
>>> > > '0000:03:00.0' to DPDK
>>> > > 2018-03-28T09:34:25.687Z|00125|netdev|WARN|dpdk0: could not set
>>> > > configuration (Invalid argument)
>>> >
>>> >
>>> > How to fix this bug? Is there anyone got these errors? Thank you~
>>>
>>> Hi,
>>>
>>> I would say you don't have the correct Linux drivers, nor libraries to
>>> make it work with DPDK.
>>> Did you installed Mellanox OFED?  If not take a look at section 19.5.
>>> Prerequisites of the NIC documentation [1].
>>>
>>> Regards,
>>>
>>> [1] https://dpdk.org/doc/guides-17.05/nics/mlx5.html
>>>
>>> --
>>> Nélio Laranjeiro
>>> 6WIND
>>>
>>
>>
>