Re: [dpdk-dev] Why only rx queue "0" can receive network packet by i40e NIC

["Zhang, Helin" <helin.zhang@intel.com>]

> -----Original Message-----
> From: Jeff Venable, Sr. [mailto:jeff@vectranetworks.com]
> Sent: Wednesday, July 22, 2015 5:47 PM
> To: Zhang, Helin; lhffjzh; 'Thomas Monjalon'
> Cc: dev@dpdk.org
> Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network packet by
> i40e NIC
> 
> Is the I40E incapable of operating RSS with ETH_RSS_IP (i.e. hashing without L4
> ports)?
Why do you think like this? Sorry, I am a bit confused.
ETH_RSS_IP is a super set of all IP based rss types. Please see the rss types listed
in rte_ethdev.h.
The supports rss types of each NIC can be queried via 'struct rte_eth_dev_info' of
field 'flow_type_rss_offloads'.

Regards,
Helin

> 
> Thanks,
> 
> Jeff
> 
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Zhang, Helin
> Sent: Saturday, February 28, 2015 6:34 AM
> To: lhffjzh; 'Thomas Monjalon'
> Cc: dev@dpdk.org; maintainers@dpdk.org
> Subject: Re: [dpdk-dev] Why only rx queue "0" can receive network packet by
> i40e NIC
> 
> Good to know that!
> 
> > -----Original Message-----
> > From: lhffjzh [mailto:lhffjzh@126.com]
> > Sent: Saturday, February 28, 2015 12:34 PM
> > To: Zhang, Helin; 'Thomas Monjalon'
> > Cc: dev@dpdk.org; maintainers@dpdk.org
> > Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network
> > packet by i40e NIC
> >
> > Hi Helin,
> >
> > Thanks a lot for your great help, all of rx queue received network
> > packet after I update rss_hf from "ETH_RSS_IP" to " ETH_RSS_PROTO_MASK ".
> >
> > static struct rte_eth_conf port_conf = {
> >     .rxmode = {
> >         .mq_mode        = ETH_MQ_RX_RSS,
> >         .max_rx_pkt_len = ETHER_MAX_LEN,
> >         .split_hdr_size = 0,
> >         .header_split   = 0, /**< Header Split disabled */
> >         .hw_ip_checksum = 1, /**< IP checksum offload enabled */
> >         .hw_vlan_filter = 0, /**< VLAN filtering disabled */
> >         .jumbo_frame    = 0, /**< Jumbo Frame Support disabled */
> >         .hw_strip_crc   = 0, /**< CRC stripped by hardware */
> >     },
> >     .rx_adv_conf = {
> >         .rss_conf = {
> >             .rss_key = NULL,
> >             .rss_hf = ETH_RSS_PROTO_MASK,
> >         },
> >     },
> >     .txmode = {
> >         .mq_mode = ETH_MQ_TX_NONE,
> >     },
> >     .fdir_conf.mode = RTE_FDIR_MODE_SIGNATURE, };
> >
> >
> > Regards,
> > Haifeng
> >
> > -----Original Message-----
> > From: Zhang, Helin [mailto:helin.zhang@intel.com]
> > Sent: Saturday, February 28, 2015 11:18 AM
> > To: lhffjzh; 'Thomas Monjalon'
> > Cc: dev@dpdk.org; maintainers@dpdk.org
> > Subject: RE: [dpdk-dev] Why only rx queue "0" can receive network
> > packet by i40e NIC
> >
> > Hi Haifeng
> >
> > > -----Original Message-----
> > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of lhffjzh
> > > Sent: Saturday, February 28, 2015 9:48 AM
> > > To: 'Thomas Monjalon'
> > > Cc: dev@dpdk.org; maintainers@dpdk.org
> > > Subject: Re: [dpdk-dev] Why only rx queue "0" can receive network
> > > packet
> > by
> > > i40e NIC
> > >
> > > Hi Thomas,
> > >
> > > Thanks very much for your reminder, you give me many help in this
> > > mail
> > list.
> > >
> > > The issue with detailed information just as below. but I don't know
> > > who is
> > the
> > > dpdk i40e maintainers? is maintainers@dpdk.org?
> > >
> > > Hardware list:
> > >     2 i40e 40G NICs
> > >     Xeon E5-2670 v2(10 cores)
> > >     32G memory
> > >
> > > I loopback 2 i40e NICs by QSFP cable, one NIC send UDP network
> > > packet by DPDK, and another for receiving. I bind 4 processor's
> > > logical cores with 4
> > rx
> > > queue "0,1,2,3" on receiving NIC, when I start to send packet, only
> > > rx
> > queue
> > > "0"
> > > can receive
> > > the UDP packet, the others queue always receive nothing. but it is
> > > work
> > well on
> > > ixgbe 10G NICs, I can receive network packet from all rx queues.
> > > does
> > anyone
> > > kindly know why?
> > Could you help to list the DPDK version you are using now?
> > Two possible reasons:
> > 1. UDP rss is not enabled on your board correctly.
> > 	I40e has different rss flags from ixgbe, so I am wondering if you use
> > it correctly.
> > 	In addition, this will be unified from 2.0. So I care about the DPDK version.
> > 2. The UDP stream is occasionally hit the hash key of queue 0.
> > 	You'd better to try to send your UDP stream with random 5-tuples, to
> > get the
> > 	hash value hit different queues randomly.
> >
> > Regards,
> > Helin
> >
> > >
> > >
> > > Regards,
> > > Haifeng
> > >
> > > -----Original Message-----
> > > From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> > > Sent: Friday, February 27, 2015 6:55 PM
> > > To: lhffjzh
> > > Cc: dev@dpdk.org
> > > Subject: Re: Why only rx queue "0" can receive network packet by
> > > i40e NIC
> > >
> > > 2015-02-27 16:47, lhffjzh:
> > > > Hi All,
> > > >
> > > > We use 4 cores loop 4 rx queues on one i40e port, but only rx queue "0"
> > > can
> > > > receive network packet, do anyone kindly know why? BTW, all of
> > > > network packet has same destination ip address but has more than
> > > > 200 different source ip address.
> > >
> > > It's possible that you don't have any answer for 2 reasons:
> > > - you replied in a thread dedicated to Cisco enic questions
> > > - you didn't describe your usage enough to understand your problem
> > >
> > > I suggest to use the button "new email" instead of "reply all" to
> > > start a new question with enough details.
> > >
> > > Did you noticed you put some Cisco guys in CC instead of putting the
> > > Intel responsible for i40e (see MAINTAINERS file)?
> > >
> >