[dpdk-dev] Help: How to read packet statistics from device registers via dpdk PMD?

[Bill Bonaparte]

I am so happy to get your reply.
My dpdk version is 2.1，and the OS is centOS 7。
the following is the output from "dpdk_nic_bind.py --status":

[root at APV35 ~]# dpdk_nic_bind.py --status

Network devices using DPDK-compatible driver
============================================
0000:04:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=
0000:0b:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=
0000:13:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=
0000:1b:00.0 'VMXNET3 Ethernet Controller' drv=igb_uio unused=

Network devices using kernel driver
===================================
0000:03:00.0 'VMXNET3 Ethernet Controller' if=ens160 drv=vmxnet3
unused=igb_uio *Active*

Other network devices
=====================
<none>

I tried it on the physical mathine, it still does not work. the OS is
centOS 7, too.
[root at AN ~]# dpdk_nic_bind.py --status

Network devices using DPDK-compatible driver
============================================
0000:01:00.0 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio
unused=
0000:01:00.1 '82599ES 10-Gigabit SFI/SFP+ Network Connection' drv=igb_uio
unused=
0000:03:00.0 'I350 Gigabit Backplane Connection' drv=igb_uio unused=
0000:03:00.1 'I350 Gigabit Backplane Connection' drv=igb_uio unused=
0000:03:00.2 'I350 Gigabit Backplane Connection' drv=igb_uio unused=
0000:03:00.3 'I350 Gigabit Backplane Connection' drv=igb_uio unused=
0000:07:00.0 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:07:00.1 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:07:00.2 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:07:00.3 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:09:00.0 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:09:00.1 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:09:00.2 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:09:00.3 'I350 Gigabit Network Connection' drv=igb_uio unused=
0000:0c:00.0 'Device 0011' drv=igb_uio unused=
0000:0f:00.1 'I350 Gigabit Network Connection' drv=igb_uio unused=

Network devices using kernel driver
===================================
0000:0f:00.0 'I350 Gigabit Network Connection' if=enp15s0f0 drv=igb
unused=igb_uio *Active*

Other network devices
=====================
<none>


On Tue, Jul 5, 2016 at 8:03 PM, Jay Rolette <rolette at infinite.io> wrote:

>
> On Tue, Jul 5, 2016 at 2:35 AM, Bill Bonaparte <programme110 at gmail.com>
> wrote:
>
>> Hi:
>> I am a new fish, I have tried my best to find answer about my question on
>> web, but I failed. so
>> I come here to ask for your help. the below is my question:
>>
>> I found that dpdk provides a api rte_eth_stats_get to read packet
>> statistics about the interface, includes total input/output
>> unicast/multicast/brodcast packets/bytes. but the api does not work on
>> VMxnet interface (which is a virtual interface in VMware machine).
>>
>
> Probably something in your app or environment rather than in the API
> itself. We run rte_eth_stats_get() against interfaces in VMware Fusion,
> VirtualBox and real hardware and they all work generally.
>
> Need some info before anyone can help you much:
>
> * What version of DPDK are you running?
> * What OS are you running on?
> * Output from "dpdk_nic_bind.py --status"?
>
> Jay
>