[dpdk-users] QAT cryto PMD queue pair and Ring Libary

[Ferruh Yigit]

On 3/11/2019 3:59 PM, Changchun Zhang wrote:
> Thanks!
> So igb_uio driver is actually part of DPDK, instead of the general Ethernet driver. This is very important. 

igb_uio driver is delivered by DPDK. igb_uio and drivers are separated.

> 
> Changchun (Alex)
> 
> 
> -----Original Message-----
> From: Ferruh Yigit [mailto:ferruh.yigit at intel.com] 
> Sent: Monday, March 11, 2019 7:08 AM
> To: Changchun Zhang <changchun.zhang at oracle.com>; Trahe, Fiona <fiona.trahe at intel.com>; users at dpdk.org
> Subject: Re: [dpdk-users] QAT cryto PMD queue pair and Ring Libary
> 
> On 3/8/2019 9:14 PM, Changchun Zhang wrote:
>> Thanks.
>> The related question, for Ethernet device, if it has been bound to igb_uio driver, who is going to actually implement the rx_ring and tx_ring for the Ethernet PMD? The igb_uio driver?
> 
> DPDK drivers does it, please check ./drivers/net/* igb_uio just for exposing the device registers to be able to use with DPDK drivers.
> 
>>
>> Changchun (Alex)
>>
>>
>> -----Original Message-----
>> From: Trahe, Fiona [mailto:fiona.trahe at intel.com]
>> Sent: Friday, March 08, 2019 5:56 AM
>> To: Changchun Zhang <changchun.zhang at oracle.com>; users at dpdk.org
>> Cc: Trahe, Fiona <fiona.trahe at intel.com>
>> Subject: RE: [dpdk-users] QAT cryto PMD queue pair and Ring Libary
>>
>>
>>> -----Original Message-----
>>> From: users [mailto:users-bounces at dpdk.org] On Behalf Of Changchun 
>>> Zhang
>>> Sent: Thursday, March 7, 2019 9:29 PM
>>> To: users at dpdk.org
>>> Subject: [dpdk-users] QAT cryto PMD queue pair and Ring Libary
>>>
>>> Hi,
>>>
>>>
>>>
>>> QAT PMD driver uses the queue pair to communication with QAT device. 
>>> My question is, whether or this QAP queue pair is implemented over DPDK ring library or just self-defined queue implementation?
>> [Fiona] This doesn't use the DPDK ring library. They are QAT-specific, hw-supported tx and rx rings.
>>
>