FreeBSD 11.1 vmx + netmap queues

[Santiago Martinez]

Hi Vincenzo,

thanks a lot for your help. I tried it this morning and worked like a charm!

Cheers

Santi


On 02/11/17 21:31, Vincenzo Maffione wrote:
> Hi,
>   With vmx driver netmap will use the emulated netmap adapter. On freebsd
> netmap still does not have a way to see how many rings an interface has. So
> by default will assume 1 tx/rx rings couple for emulated adapter. You can
> however change this by sysctl dev.netmap.generic_rings.
>
> Cheers,
>   Vincenzo
>
> Il 2 nov 2017 6:22 PM, "Santiago Martinez" <sm at codenetworks.net> ha scritto:
>
>> Hi list, hope you guys are doing well.
>>
>> I have a basic question. Do you know if multiple TX queues are
>> supported  for vmx + netmap ?
>>
>> Basically I'm using pkt-gen to generate bulk traffic @10Gbps and its OK
>> with packet size >~1000b.
>>
>> For small packets I should use multiple cores/processes to be able to
>> generate the required pps, but pkg-gen complain that I have only one queue.
>>
>> I tried adding multiple queues for vmx on loader.conf (can verify with
>> sysctl) but netmap still complaining there is only one queue.
>>
>> sysctl -a | grep vmx.1:
>> dev.vmx.1.mbuf_load_failed: 0
>> dev.vmx.1.mgetcl_failed: 0
>> dev.vmx.1.defrag_failed: 0
>> dev.vmx.1.defragged: 0
>> dev.vmx.1.nrxqueues: 8
>> dev.vmx.1.ntxqueues: 4
>> dev.vmx.1.max_nrxqueues: 8
>> dev.vmx.1.max_ntxqueues: 4
>> dev.vmx.1.%parent: pci4
>> dev.vmx.1.%pnpinfo: vendor=0x15ad device=0x07b0 subvendor=0x15ad
>> subdevice=0x07b0 class=0x020000
>> dev.vmx.1.%location: slot=0 function=0 dbsf=pci0:11:0:0
>> handle=\_SB_.PCI0.PE50.S1F0
>> dev.vmx.1.%driver: vmx
>> dev.vmx.1.%desc: VMware VMXNET3 Ethernet Adapter
>>
>> pkg-gen still saying one queue for vmx:
>>
>> Sending on netmap:vmx1: 1 queues, 2 threads and 4 cpus.
>>
>>
>> Thanks in advance.
>>
>> Santiago
>>
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