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

[Changchun Zhang]

Thanks!
So igb_uio driver is actually part of DPDK, instead of the general Ethernet driver. This is very important. 

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.
>