* [dpdk-users] Reg DPDK with unsupported NIC
@ 2017-03-14 9:28 raman geetha gopalakrishnan
2017-03-14 9:46 ` [dpdk-users] [dpdk-dev] " Thomas Monjalon
` (2 more replies)
0 siblings, 3 replies; 8+ messages in thread
From: raman geetha gopalakrishnan @ 2017-03-14 9:28 UTC (permalink / raw)
To: dev, users
Hi ,
Please find my query, Currently i am planning to develop DPDK APP (linux
env). I do not have DPDK supported NIC. Till then i would still like to
develop DPDK APP and want DPDK to use OS interface to TX/RX packets from
NIC. How can i make it? I went through KNI and my understanding is you
cannot use it - is this correct?
In what way i can still develop DPDK APP with non supported NIC till get
the DPDK NIC.
Thanks
Raman
^ permalink raw reply [flat|nested] 8+ messages in thread* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 9:28 [dpdk-users] Reg DPDK with unsupported NIC raman geetha gopalakrishnan @ 2017-03-14 9:46 ` Thomas Monjalon 2017-03-14 10:13 ` raman geetha gopalakrishnan 2017-03-14 9:52 ` Wiles, Keith 2017-03-14 12:07 ` Ferruh Yigit 2 siblings, 1 reply; 8+ messages in thread From: Thomas Monjalon @ 2017-03-14 9:46 UTC (permalink / raw) To: raman geetha gopalakrishnan; +Cc: dev, users 2017-03-14 14:58, raman geetha gopalakrishnan: > In what way i can still develop DPDK APP with non supported NIC till get > the DPDK NIC. You should check the bottom of this page (section Ohers): http://dpdk.org/doc/nics The simplest is to use the ring PMD which do not require a NIC at all. Or you can try the other solutions (pcap, tap, af_packet). ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 9:46 ` [dpdk-users] [dpdk-dev] " Thomas Monjalon @ 2017-03-14 10:13 ` raman geetha gopalakrishnan 0 siblings, 0 replies; 8+ messages in thread From: raman geetha gopalakrishnan @ 2017-03-14 10:13 UTC (permalink / raw) To: Thomas Monjalon; +Cc: dev, users Thanks Monjalon For the quick reply. On Tue, Mar 14, 2017 at 3:16 PM, Thomas Monjalon <thomas.monjalon@6wind.com> wrote: > 2017-03-14 14:58, raman geetha gopalakrishnan: > > In what way i can still develop DPDK APP with non supported NIC till get > > the DPDK NIC. > > You should check the bottom of this page (section Ohers): > http://dpdk.org/doc/nics > The simplest is to use the ring PMD which do not require a NIC at all. > Or you can try the other solutions (pcap, tap, af_packet). > ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 9:28 [dpdk-users] Reg DPDK with unsupported NIC raman geetha gopalakrishnan 2017-03-14 9:46 ` [dpdk-users] [dpdk-dev] " Thomas Monjalon @ 2017-03-14 9:52 ` Wiles, Keith 2017-03-14 10:13 ` raman geetha gopalakrishnan 2017-03-14 12:07 ` Ferruh Yigit 2 siblings, 1 reply; 8+ messages in thread From: Wiles, Keith @ 2017-03-14 9:52 UTC (permalink / raw) To: raman geetha gopalakrishnan; +Cc: dev, users Sent from my iPhone > On Mar 14, 2017, at 5:29 PM, raman geetha gopalakrishnan <glowingsun@gmail.com> wrote: > > Hi , > > Please find my query, Currently i am planning to develop DPDK APP (linux > env). I do not have DPDK supported NIC. Till then i would still like to > develop DPDK APP and want DPDK to use OS interface to TX/RX packets from > NIC. How can i make it? I went through KNI and my understanding is you > cannot use it - is this correct? > > In what way i can still develop DPDK APP with non supported NIC till get > the DPDK NIC. Take a look at the TAP PMD driver and look at the doc file in the doc directory. It will not be high performance but it can work nicely using tap and some like socat. > > Thanks > Raman ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 9:52 ` Wiles, Keith @ 2017-03-14 10:13 ` raman geetha gopalakrishnan 0 siblings, 0 replies; 8+ messages in thread From: raman geetha gopalakrishnan @ 2017-03-14 10:13 UTC (permalink / raw) To: Wiles, Keith; +Cc: dev, users Thanks Keith For the quick Reply. On Tue, Mar 14, 2017 at 3:22 PM, Wiles, Keith <keith.wiles@intel.com> wrote: > > > Sent from my iPhone > > > On Mar 14, 2017, at 5:29 PM, raman geetha gopalakrishnan < > glowingsun@gmail.com> wrote: > > > > Hi , > > > > Please find my query, Currently i am planning to develop DPDK APP (linux > > env). I do not have DPDK supported NIC. Till then i would still like to > > develop DPDK APP and want DPDK to use OS interface to TX/RX packets from > > NIC. How can i make it? I went through KNI and my understanding is you > > cannot use it - is this correct? > > > > In what way i can still develop DPDK APP with non supported NIC till get > > the DPDK NIC. > > Take a look at the TAP PMD driver and look at the doc file in the doc > directory. > > It will not be high performance but it can work nicely using tap and some > like socat. > > > > Thanks > > Raman > ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 9:28 [dpdk-users] Reg DPDK with unsupported NIC raman geetha gopalakrishnan 2017-03-14 9:46 ` [dpdk-users] [dpdk-dev] " Thomas Monjalon 2017-03-14 9:52 ` Wiles, Keith @ 2017-03-14 12:07 ` Ferruh Yigit 2017-03-15 4:45 ` Bruce Richardson 2 siblings, 1 reply; 8+ messages in thread From: Ferruh Yigit @ 2017-03-14 12:07 UTC (permalink / raw) To: raman geetha gopalakrishnan, dev, users On 3/14/2017 9:28 AM, raman geetha gopalakrishnan wrote: > Hi , > > Please find my query, Currently i am planning to develop DPDK APP (linux > env). I do not have DPDK supported NIC. Till then i would still like to > develop DPDK APP and want DPDK to use OS interface to TX/RX packets from > NIC. How can i make it? > I went through KNI and my understanding is you > cannot use it - is this correct? You can use it. KNI does not require a physical device at all. But with the KNI support in main tree, you need to use KNI specific APIs, - which KNI sample app shows. With the KNI PMD in next-net tree, it is possible to use KNI as any other device. > > In what way i can still develop DPDK APP with non supported NIC till get > the DPDK NIC. > > Thanks > Raman > ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-14 12:07 ` Ferruh Yigit @ 2017-03-15 4:45 ` Bruce Richardson 2017-03-15 5:24 ` Stephen Hemminger 0 siblings, 1 reply; 8+ messages in thread From: Bruce Richardson @ 2017-03-15 4:45 UTC (permalink / raw) To: Ferruh Yigit; +Cc: raman geetha gopalakrishnan, dev, users On Tue, Mar 14, 2017 at 12:07:42PM +0000, Ferruh Yigit wrote: > On 3/14/2017 9:28 AM, raman geetha gopalakrishnan wrote: > > Hi , > > > > Please find my query, Currently i am planning to develop DPDK APP (linux > > env). I do not have DPDK supported NIC. Till then i would still like to > > develop DPDK APP and want DPDK to use OS interface to TX/RX packets from > > NIC. How can i make it? > > > I went through KNI and my understanding is you > > cannot use it - is this correct? > > You can use it. KNI does not require a physical device at all. > > But with the KNI support in main tree, you need to use KNI specific > APIs, - which KNI sample app shows. > > With the KNI PMD in next-net tree, it is possible to use KNI as any > other device. > Just my 2c. While you can indeed use KNI here, I think I would recommend pcap or AF_PACKET as my first-choice options, with TAP also a possibility too, as Keith has already suggested. /Bruce ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [dpdk-users] [dpdk-dev] Reg DPDK with unsupported NIC 2017-03-15 4:45 ` Bruce Richardson @ 2017-03-15 5:24 ` Stephen Hemminger 0 siblings, 0 replies; 8+ messages in thread From: Stephen Hemminger @ 2017-03-15 5:24 UTC (permalink / raw) To: Bruce Richardson; +Cc: Ferruh Yigit, raman geetha gopalakrishnan, dev, users On Wed, 15 Mar 2017 04:45:03 +0000 Bruce Richardson <bruce.richardson@intel.com> wrote: > On Tue, Mar 14, 2017 at 12:07:42PM +0000, Ferruh Yigit wrote: > > On 3/14/2017 9:28 AM, raman geetha gopalakrishnan wrote: > > > Hi , > > > > > > Please find my query, Currently i am planning to develop DPDK APP (linux > > > env). I do not have DPDK supported NIC. Till then i would still like to > > > develop DPDK APP and want DPDK to use OS interface to TX/RX packets from > > > NIC. How can i make it? > > > > > I went through KNI and my understanding is you > > > cannot use it - is this correct? > > > > You can use it. KNI does not require a physical device at all. > > > > But with the KNI support in main tree, you need to use KNI specific > > APIs, - which KNI sample app shows. > > > > With the KNI PMD in next-net tree, it is possible to use KNI as any > > other device. > > > > Just my 2c. While you can indeed use KNI here, I think I would recommend > pcap or AF_PACKET as my first-choice options, with TAP also a > possibility too, as Keith has already suggested. > > /Bruce Other than development environment, why would you want to use DPDK with AF_PACKET or TAP? It will be slower than kernel networking and with KNI doubly slow. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2017-03-15 5:24 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2017-03-14 9:28 [dpdk-users] Reg DPDK with unsupported NIC raman geetha gopalakrishnan 2017-03-14 9:46 ` [dpdk-users] [dpdk-dev] " Thomas Monjalon 2017-03-14 10:13 ` raman geetha gopalakrishnan 2017-03-14 9:52 ` Wiles, Keith 2017-03-14 10:13 ` raman geetha gopalakrishnan 2017-03-14 12:07 ` Ferruh Yigit 2017-03-15 4:45 ` Bruce Richardson 2017-03-15 5:24 ` Stephen Hemminger
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