[dpdk-dev] SRIOV mode and different RX and TX configuration

Ramia, Kannan Babu kannan.babu.ramia at intel.com
Mon Aug 11 10:23:58 CEST 2014


Only if you enable DCB option you will get the multiple queues per VF.

regards
Kannan Babu

-----Original Message-----
From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Zhang, Helin
Sent: Monday, August 11, 2014 1:44 PM
To: Wodkowski, PawelX
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] SRIOV mode and different RX and TX configuration



> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Wodkowski, PawelX
> Sent: Monday, August 11, 2014 4:05 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] SRIOV mode and different RX and TX configuration
> 
> Hi,
> I am wondering if there is a sense in having different configuration 
> in for RX and TX mode in SR-IOV mode. Ex RX mode ETH_MQ_RX_NONE and TX 
> mode ETH_MQ_TX_VMDQ_DCB or something similar.
> I am asking because in code there is no difference between number of 
> RX queues and TX queues reported to VF and if having different 
> configuration in RX and TX is possible this must be taken into account.
> Paweł Wódkowski
> Sii Engineer
> Delivering outsourced services to Intel

Hi Pawel

Though I am not sure if understood your question, I am trying to give some comments.

Do you mean the configurable number of rx/tx queues in VF? For Niantic, hardware just supports only one queue in VF, so there is no flexibility for that. For later NICs like i40e, we will have that flexibility.

Regards,
Helin


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