[dpdk-dev] DPDK: receive single packet at a time

[dpdk-dev] DPDK: receive single packet at a time

[Mohan Prasad]

Hi,

Is there any option to receive single packet at a time with dpdk?

Thanks,
Mohan

Re: [dpdk-dev] DPDK: receive single packet at a time

[Wiles, Keith]

>Hi,
>
>Is there any option to receive single packet at a time with dpdk?

Not sure if this is the answer you are looking for, but if you just request a single packet with

struct rte_mbuf *mbuf;
rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);

will return only one packet as a time.
>
>Thanks,
>Mohan
>


Regards,
Keith

Re: [dpdk-dev] DPDK: receive single packet at a time

[Mohan Prasad]

Hi,

I have tried this and it does not work

Thanks,
Mohan
On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:

> >Hi,
> >
> >Is there any option to receive single packet at a time with dpdk?
>
> Not sure if this is the answer you are looking for, but if you just
> request a single packet with
>
> struct rte_mbuf *mbuf;
> rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
>
> will return only one packet as a time.
> >
> >Thanks,
> >Mohan
> >
>
>
> Regards,
> Keith
>
>
>
>
>

Re: [dpdk-dev] DPDK: receive single packet at a time

[Wiles, Keith]

From:  Mohan Prasad <kcmohanprasad@gmail.com>
Date:  Tuesday, March 29, 2016 at 8:01 AM
To:  Keith Wiles <keith.wiles@intel.com>
Cc:  "dev@dpdk.org" <dev@dpdk.org>
Subject:  Re: [dpdk-dev] DPDK: receive single packet at a time


>Hi,
>I have tried this and it does not work

Then something else is wrong as this work in Pktgen-DPDK, I can send one packet and receive one packet even when I ask for 32 packets at a time. Are you receiving any packets?

I am using a 82599 NIC and if you are using some other type of NIC, I will not be able to help much.

>Thanks,
>Mohan
>On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
>
>>Hi,
>>
>>Is there any option to receive single packet at a time with dpdk?
>
>Not sure if this is the answer you are looking for, but if you just request a single packet with
>
>struct rte_mbuf *mbuf;
>rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
>
>will return only one packet as a time.
>>
>>Thanks,
>>Mohan
>>
>
>
>Regards,
>Keith
>
>
>
>
>
>
>
>
>


Regards,
Keith

Re: [dpdk-dev] DPDK: receive single packet at a time

[Bruce Richardson]

On Tue, Mar 29, 2016 at 06:31:58PM +0530, Mohan Prasad wrote:
> Hi,
> 
> I have tried this and it does not work
> 

What type of NIC are you using. If you are using ixgbe or i40e, try disabling
the vector PMD in your build-time configuration to see if it makes a difference.

However, why do you want to receive just a single packet at a time. Why not just
receive a burst of packets and then process them one at a time? It's much more
efficient that way, and you should get better performance from your application.

/Bruce


> Thanks,
> Mohan
> On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
> 
> > >Hi,
> > >
> > >Is there any option to receive single packet at a time with dpdk?
> >
> > Not sure if this is the answer you are looking for, but if you just
> > request a single packet with
> >
> > struct rte_mbuf *mbuf;
> > rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
> >
> > will return only one packet as a time.
> > >
> > >Thanks,
> > >Mohan
> > >
> >
> >
> > Regards,
> > Keith
> >
> >
> >
> >
> >

Re: [dpdk-dev] DPDK: receive single packet at a time

[Mohan Prasad]

Even I am using "82599ES 10-Gigabit SFI/SFP+ Network Connection" card only.

I am able to send single packet but not able to receive single packets, I
can receive burst only.

I am just building an application for tcp connection on dpdk. Anyways will
try disabling vector PMD and give it a try

Thanks,
Mohan

On Tue, Mar 29, 2016 at 6:38 PM, Wiles, Keith <keith.wiles@intel.com> wrote:

> From:  Mohan Prasad <kcmohanprasad@gmail.com>
> Date:  Tuesday, March 29, 2016 at 8:01 AM
> To:  Keith Wiles <keith.wiles@intel.com>
> Cc:  "dev@dpdk.org" <dev@dpdk.org>
> Subject:  Re: [dpdk-dev] DPDK: receive single packet at a time
>
>
> >Hi,
> >I have tried this and it does not work
>
> Then something else is wrong as this work in Pktgen-DPDK, I can send one
> packet and receive one packet even when I ask for 32 packets at a time. Are
> you receiving any packets?
>
> I am using a 82599 NIC and if you are using some other type of NIC, I will
> not be able to help much.
>
> >Thanks,
> >Mohan
> >On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
> >
> >>Hi,
> >>
> >>Is there any option to receive single packet at a time with dpdk?
> >
> >Not sure if this is the answer you are looking for, but if you just
> request a single packet with
> >
> >struct rte_mbuf *mbuf;
> >rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
> >
> >will return only one packet as a time.
> >>
> >>Thanks,
> >>Mohan
> >>
> >
> >
> >Regards,
> >Keith
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
> Regards,
> Keith
>
>
>

Re: [dpdk-dev] DPDK: receive single packet at a time

[Mohan Prasad]

Hi Bruce,

Could not get it working by disabling the vector PMD, Do you have any
example where it works?

Thanks,
Mohan

On Tue, Mar 29, 2016 at 6:46 PM, Bruce Richardson <
bruce.richardson@intel.com> wrote:

> On Tue, Mar 29, 2016 at 06:31:58PM +0530, Mohan Prasad wrote:
> > Hi,
> >
> > I have tried this and it does not work
> >
>
> What type of NIC are you using. If you are using ixgbe or i40e, try
> disabling
> the vector PMD in your build-time configuration to see if it makes a
> difference.
>
> However, why do you want to receive just a single packet at a time. Why
> not just
> receive a burst of packets and then process them one at a time? It's much
> more
> efficient that way, and you should get better performance from your
> application.
>
> /Bruce
>
>
> > Thanks,
> > Mohan
> > On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
> >
> > > >Hi,
> > > >
> > > >Is there any option to receive single packet at a time with dpdk?
> > >
> > > Not sure if this is the answer you are looking for, but if you just
> > > request a single packet with
> > >
> > > struct rte_mbuf *mbuf;
> > > rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
> > >
> > > will return only one packet as a time.
> > > >
> > > >Thanks,
> > > >Mohan
> > > >
> > >
> > >
> > > Regards,
> > > Keith
> > >
> > >
> > >
> > >
> > >
>

Re: [dpdk-dev] DPDK: receive single packet at a time

[Mohan Prasad]

Could not get it working by disabling the vector PMD, Do you have any
example where it works?

Thanks,
Mohan

On Wed, Mar 30, 2016 at 11:06 AM, Mohan Prasad <kcmohanprasad@gmail.com>
wrote:

> Hi Bruce,
>
> Could not get it working by disabling the vector PMD, Do you have any
> example where it works?
>
> Thanks,
> Mohan
>
> On Tue, Mar 29, 2016 at 6:46 PM, Bruce Richardson <
> bruce.richardson@intel.com> wrote:
>
>> On Tue, Mar 29, 2016 at 06:31:58PM +0530, Mohan Prasad wrote:
>> > Hi,
>> >
>> > I have tried this and it does not work
>> >
>>
>> What type of NIC are you using. If you are using ixgbe or i40e, try
>> disabling
>> the vector PMD in your build-time configuration to see if it makes a
>> difference.
>>
>> However, why do you want to receive just a single packet at a time. Why
>> not just
>> receive a burst of packets and then process them one at a time? It's much
>> more
>> efficient that way, and you should get better performance from your
>> application.
>>
>> /Bruce
>>
>>
>> > Thanks,
>> > Mohan
>> > On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
>> >
>> > > >Hi,
>> > > >
>> > > >Is there any option to receive single packet at a time with dpdk?
>> > >
>> > > Not sure if this is the answer you are looking for, but if you just
>> > > request a single packet with
>> > >
>> > > struct rte_mbuf *mbuf;
>> > > rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
>> > >
>> > > will return only one packet as a time.
>> > > >
>> > > >Thanks,
>> > > >Mohan
>> > > >
>> > >
>> > >
>> > > Regards,
>> > > Keith
>> > >
>> > >
>> > >
>> > >
>> > >
>>
>
>

Re: [dpdk-dev] DPDK: receive single packet at a time

[Wiles, Keith]

From:  Mohan Prasad <kcmohanprasad@gmail.com>
Date:  Thursday, March 31, 2016 at 6:42 AM
To:  Bruce Richardson <bruce.richardson@intel.com>
Cc:  Keith Wiles <keith.wiles@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject:  Re: [dpdk-dev] DPDK: receive single packet at a time


>Could not get it working by disabling the vector PMD, Do you have any example where it works?
>
>
>

I would expect the examples like l2fwd or l2fwd work in this way if the PMD is not enabled. The pktgen-dpdk I know will work with a single packet send and received. The code is on the dpdk.org/download directory.

>
>Thanks,
>Mohan
>
>
>On Wed, Mar 30, 2016 at 11:06 AM, Mohan Prasad 
><kcmohanprasad@gmail.com> wrote:
>
>Hi Bruce,
>
>Could not get it working by disabling the vector PMD, Do you have any example where it works?
>
>Thanks,
>Mohan
>
>
>On Tue, Mar 29, 2016 at 6:46 PM, Bruce Richardson 
><bruce.richardson@intel.com> wrote:
>
>On Tue, Mar 29, 2016 at 06:31:58PM +0530, Mohan Prasad wrote:
>> Hi,
>>
>> I have tried this and it does not work
>>
>
>What type of NIC are you using. If you are using ixgbe or i40e, try disabling
>the vector PMD in your build-time configuration to see if it makes a difference.
>
>However, why do you want to receive just a single packet at a time. Why not just
>receive a burst of packets and then process them one at a time? It's much more
>efficient that way, and you should get better performance from your application.
>
>/Bruce
>
>
>> Thanks,
>> Mohan
>> On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
>>
>> > >Hi,
>> > >
>> > >Is there any option to receive single packet at a time with dpdk?
>> >
>> > Not sure if this is the answer you are looking for, but if you just
>> > request a single packet with
>> >
>> > struct rte_mbuf *mbuf;
>> > rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
>> >
>> > will return only one packet as a time.
>> > >
>> > >Thanks,
>> > >Mohan
>> > >
>> >
>> >
>> > Regards,
>> > Keith
>> >
>> >
>> >
>> >
>> >
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>


Regards,
Keith

Re: [dpdk-dev] DPDK: receive single packet at a time

[Wiles, Keith]

>
>From:  Mohan Prasad <kcmohanprasad@gmail.com>
>Date:  Thursday, March 31, 2016 at 6:42 AM
>To:  Bruce Richardson <bruce.richardson@intel.com>
>Cc:  Keith Wiles <keith.wiles@intel.com>, "dev@dpdk.org" <dev@dpdk.org>
>Subject:  Re: [dpdk-dev] DPDK: receive single packet at a time
>
>
>>Could not get it working by disabling the vector PMD, Do you have any example where it works?
>>
>>
>>
>
>I would expect the examples like l2fwd or l2fwd work in this way if the PMD is not enabled. The pktgen-dpdk I know will work with a single packet send and received. The code is on the dpdk.org/download directory.

Another possible debug is to run one of the l2fwd, l3fwd or pktgen and verify they work or not.
>
>>
>>Thanks,
>>Mohan
>>
>>
>>On Wed, Mar 30, 2016 at 11:06 AM, Mohan Prasad 
>><kcmohanprasad@gmail.com> wrote:
>>
>>Hi Bruce,
>>
>>Could not get it working by disabling the vector PMD, Do you have any example where it works?
>>
>>Thanks,
>>Mohan
>>
>>
>>On Tue, Mar 29, 2016 at 6:46 PM, Bruce Richardson 
>><bruce.richardson@intel.com> wrote:
>>
>>On Tue, Mar 29, 2016 at 06:31:58PM +0530, Mohan Prasad wrote:
>>> Hi,
>>>
>>> I have tried this and it does not work
>>>
>>
>>What type of NIC are you using. If you are using ixgbe or i40e, try disabling
>>the vector PMD in your build-time configuration to see if it makes a difference.
>>
>>However, why do you want to receive just a single packet at a time. Why not just
>>receive a burst of packets and then process them one at a time? It's much more
>>efficient that way, and you should get better performance from your application.
>>
>>/Bruce
>>
>>
>>> Thanks,
>>> Mohan
>>> On Mar 29, 2016 6:26 PM, "Wiles, Keith" <keith.wiles@intel.com> wrote:
>>>
>>> > >Hi,
>>> > >
>>> > >Is there any option to receive single packet at a time with dpdk?
>>> >
>>> > Not sure if this is the answer you are looking for, but if you just
>>> > request a single packet with
>>> >
>>> > struct rte_mbuf *mbuf;
>>> > rte_eth_rx_burst(port_id, queue_id, &mbuf, 1);
>>> >
>>> > will return only one packet as a time.
>>> > >
>>> > >Thanks,
>>> > >Mohan
>>> > >
>>> >
>>> >
>>> > Regards,
>>> > Keith
>>> >
>>> >
>>> >
>>> >
>>> >
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>Regards,
>Keith
>
>
>


Regards,
Keith