From: "Wiles, Keith" <keith.wiles@intel.com>
To: Mohan Prasad <kcmohanprasad@gmail.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] DPDK: receive single packet at a time
Date: Thu, 31 Mar 2016 12:43:48 +0000 [thread overview]
Message-ID: <9D26B2C2-0224-4D4B-9596-AD2A4AECE01B@intel.com> (raw)
In-Reply-To: <BE67E5D6-88F6-48A1-9EF7-0E474E94B7CB@intel.com>
>
>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
prev parent reply other threads:[~2016-03-31 12:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-29 11:32 Mohan Prasad
2016-03-29 12:56 ` Wiles, Keith
2016-03-29 13:01 ` Mohan Prasad
2016-03-29 13:08 ` Wiles, Keith
2016-03-29 13:21 ` Mohan Prasad
2016-03-29 13:16 ` Bruce Richardson
2016-03-30 5:36 ` Mohan Prasad
2016-03-31 11:42 ` Mohan Prasad
2016-03-31 12:40 ` Wiles, Keith
2016-03-31 12:43 ` Wiles, Keith [this message]
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