Re: [dpdk-dev] [PATCH] usertools/dpdk-devbind.py: add support for wind river avp device

["Zhang, Xiaohua" <Xiaohua.Zhang@windriver.com>]

Hi Yigit and Anantoly,
I checked the nics-17.11.pdf, the following is description:
"The Accelerated Virtual Port (AVP) device is a shared memory based device only available
on virtualization platforms from Wind River Systems. The Wind River Systems virtualization
platform currently uses QEMU/KVM as its hypervisor and as such provides support for all of
the QEMU supported virtual and/or emulated devices (e.g., virtio, e1000, etc.). The platform
offers the virtio device type as the default device when launching a virtual machine or creating
a virtual machine port. The AVP device is a specialized device available to customers that
require increased throughput and decreased latency to meet the demands of their performance
focused applications."

I am afraid  just "memory_device" will have some misunderstanding.
Could we put it as "avp device (shared memory based)"?



BR.
Xiaohua Zhang

-----Original Message-----
From: Ferruh Yigit [mailto:ferruh.yigit@intel.com] 
Sent: Tuesday, February 13, 2018 7:07 PM
To: BURAKOV, ANATOLY; Zhang, Xiaohua; dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] usertools/dpdk-devbind.py: add support for wind river avp device

On 2/13/2018 10:06 AM, Burakov, Anatoly wrote:
> On 13-Feb-18 1:43 AM, Zhang, Xiaohua wrote:
>> Hi Anatoly,
>> AVP is a virtual NIC type, so you are right.
>>
>> When using the AVP device, you will see the following information from lspci (example).
>> Slot:       0000:00:05.0
>> Class:      Unclassified device [00ff]
>> Vendor:   Red Hat, Inc [1af4]
>> Device:    Virtio memory balloon [1002]
>> SVendor:          Red Hat, Inc [1af4]
>> SDevice:           Device [0005]
>> PhySlot:            5
>> Driver:    virtio-pci
>>
>> It is a little different with the standard "Ethernet" controller, such as "Class:  Ethernet controller [0200]".
>> Theoretically, the AVP is a memory based device. That's the reason, I put it as separate catalog.
>>
> 
> OK, fair enough. Is there any way we can make this category 
> not-WindRiver AVP specific? Are there other similar devices out there 
> that could potentially fit into this category?

Can we call it "memory_devices" instead of "avp_devices" ?

> 
>>
>> BR.
>> Xiaohua Zhang
>>
>> -----Original Message-----
> 
> <snip>
> 
>>
>> Is there any particular reason why this device appears in its own category, rather than being added to one of the existing device classes?
>> I'm not familiar with AVP but it looks like it's a NIC, so shouldn't it be in network_devices category?
>>
>> --
>> Thanks,
>> Anatoly
>>
> 
>