[dpdk-dev] Does DPDK i40e driver support 'Toeplitz hash'

[Wu, Jingjing]

> -----Original Message-----
> From: Yigit, Ferruh
> Sent: Thursday, January 12, 2017 7:59 PM
> To: ALeX Wang <ee07b291 at gmail.com>; dev at dpdk.org
> Cc: Keith Amidon <keith at awakenetworks.com>; Wu, Jingjing
> <jingjing.wu at intel.com>; Zhang, Helin <helin.zhang at intel.com>
> Subject: Re: [dpdk-dev] Does DPDK i40e driver support 'Toeplitz hash'
> 
> On 12/12/2016 6:31 AM, ALeX Wang wrote:
> > Hi,
> >
> > We want to use 'Toeplitz hash' for RSS hash on our server equipped
> > with 'Intel X710-DA4' card.
> >
Yes, it is supported.
For the configuration, you can refer to the implementation of command set_hash_global_config in testpmd example.

> > However, seemed that we hit the exact same issue as this:
> >
> >    Why only rx queue "0" can receive network packet by i40e NIC
> >    http://dpdk.org/ml/archives/dev/2015-July/022453.html
> >
> > ...
> > We are using the v16.11 release and would like to confirm if the issue
> > above has been address.  If so, could anyone post here how to configure?
> 

Different requirement may require different configuration.
For example, you'd like to enable RSS on IP packets, you need to set

struct rte_eth_conf to be like
{
	.rxmode = {
		.mq_mode = ETH_MQ_RX_RSS,
	},
	.rx_adv_conf = {
		.rss_conf = {
			.rss_key = NULL,
			.rss_hf = ETH_RSS_IP,
		},
	},
};

This is also to be found in dpdk's examples, such like testpmd and l3fwd.

Thanks
Jingjing

> CC'ing i40e maintainers:
> Jingjing Wu <jingjing.wu at intel.com>; Helin Zhang <helin.zhang at intel.com>
> 
> >
> > Appreciate,
> > Alex Wang,
> >