[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi Hobywan, We?re still working on benchmarking, and would share the numbers once we are done with it. Could you please elaborate on vectorisation functions? Thanks, -Sujith From: Hobywan Kenoby mailto:hobyw...@hotmail.com>> Date: Friday, 11 July 2014 6:46 pm To: "Sujith Sankar (ssujith)" mailto:ssujith at cisco.com>>, "dev at dpdk.org<mailto:dev at dpdk.org>" mailto:dev at dpdk.org>> Subject: RE: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Hi Sujith, It makes sens, using VFIO makes a far cleaner implementation. You worked on the performance, could you share some measurements ? Did you introduce vectorization functions as Intel did a while ago? There are allways tradeoffs between pps and latency, do you include documentation to configure the card for one or the other? HK From: ssujith at cisco.com<mailto:ssuj...@cisco.com> To: hobywank at hotmail.com<mailto:hobywank at hotmail.com>; dev at dpdk.org<mailto:dev at dpdk.org> Subject: Re: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Date: Fri, 11 Jul 2014 07:46:08 + Hi Hobywan, Thanks for the email ! We?ve been working on performance benchmarking. Also, we felt that it would be better to push the driver after Anatoly?s patch (vfio-pci) got in so that we could make the necessary modification before submission. Now that 1.7.0 is out, we are hopeful of submitting the patch soon. Thanks, -Sujith From: Hobywan Kenoby mailto:hobyw...@hotmail.com>> Date: Thursday, 10 July 2014 1:37 am To: "Sujith Sankar (ssujith)" mailto:ssujith at cisco.com>>, "dev at dpdk.org<mailto:dev at dpdk.org>" mailto:dev at dpdk.org>> Subject: RE: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Hi Sujith, It was exciting to see open source code coming from Cisco ensuring a DPDK application can run on any platform and with any card I haven't seen your patch yet. What happened? HK > Date : Wed, 28 May 2014 08:06 > From : dev [mailto:dev-bounces at dpdk.org] > To : dev at dpdk.org<mailto:dev at dpdk.org> > Subject : [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines > for submission > > > Hi all, > > We have been working on development of poll-mode driver for Cisco VIC > Ethernet NIC and integration of it with DPDK. We would like to submit this > poll-mode driver (ENIC PMD) to the DPDK community so that it could be part > of the DPDK tree. > > Could someone please provide the guidelines and steps to do this? As of > now, ENIC PMD is being tested with DPDK 1.6.0r2. Is it alright to submit a > patch for DPDK 1.6.0r2? > > One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope > this is acceptable. The following thread in dpdk-dev influenced this > decision. > http://dpdk.org/ml/archives/dev/2013-July/000373.html > > ENIC PMD uses one interrupt per interface and it is used by the NIC for > signalling the driver in case of any error. Since this does not come in > the fast path, it should be acceptable, isn?t it? > > Please give your suggestions and comments. > > Thanks, > -Sujith
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi Sujith, It makes sens, using VFIO makes a far cleaner implementation. You worked on the performance, could you share some measurements ? Did you introduce vectorization functions as Intel did a while ago? There are allways tradeoffs between pps and latency, do you include documentation to configure the card for one or the other? HK From: ssuj...@cisco.com To: hobywank at hotmail.com; dev at dpdk.org Subject: Re: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Date: Fri, 11 Jul 2014 07:46:08 + Hi Hobywan, Thanks for the email ! We?ve been working on performance benchmarking. Also, we felt that it would be better to push the driver after Anatoly?s patch (vfio-pci) got in so that we could make the necessary modification before submission. Now that 1.7.0 is out, we are hopeful of submitting the patch soon. Thanks, -Sujith From: Hobywan Kenoby Date: Thursday, 10 July 2014 1:37 am To: "Sujith Sankar (ssujith)" , "dev at dpdk.org" Subject: RE: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Hi Sujith, It was exciting to see open source code coming from Cisco ensuring a DPDK application can run on any platform and with any card I haven't seen your patch yet. What happened? HK > Date : Wed, 28 May 2014 08:06 > From : dev [mailto:dev-bounces at dpdk.org] > To : dev at dpdk.org > Subject : [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines > for submission > > > Hi all, > > We have been working on development of poll-mode driver for Cisco VIC > Ethernet NIC and integration of it with DPDK. We would like to submit this > poll-mode driver (ENIC PMD) to the DPDK community so that it could be part > of the DPDK tree. > > Could someone please provide the guidelines and steps to do this? As of > now, ENIC PMD is being tested with DPDK 1.6.0r2. Is it alright to submit a > patch for DPDK 1.6.0r2? > > One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope > this is acceptable. The following thread in dpdk-dev influenced this > decision. > http://dpdk.org/ml/archives/dev/2013-July/000373.html > > ENIC PMD uses one interrupt per interface and it is used by the NIC for > signalling the driver in case of any error. Since this does not come in > the fast path, it should be acceptable, isn?t it? > > Please give your suggestions and comments. > > Thanks, > -Sujith
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi Hobywan, Thanks for the email ! We?ve been working on performance benchmarking. Also, we felt that it would be better to push the driver after Anatoly?s patch (vfio-pci) got in so that we could make the necessary modification before submission. Now that 1.7.0 is out, we are hopeful of submitting the patch soon. Thanks, -Sujith From: Hobywan Kenoby mailto:hobyw...@hotmail.com>> Date: Thursday, 10 July 2014 1:37 am To: "Sujith Sankar (ssujith)" mailto:ssujith at cisco.com>>, "dev at dpdk.org<mailto:dev at dpdk.org>" mailto:dev at dpdk.org>> Subject: RE: [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission Hi Sujith, It was exciting to see open source code coming from Cisco ensuring a DPDK application can run on any platform and with any card I haven't seen your patch yet. What happened? HK > Date : Wed, 28 May 2014 08:06 > From : dev [mailto:dev-bounces at dpdk.org] > To : dev at dpdk.org<mailto:dev at dpdk.org> > Subject : [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines > for submission > > > Hi all, > > We have been working on development of poll-mode driver for Cisco VIC > Ethernet NIC and integration of it with DPDK. We would like to submit this > poll-mode driver (ENIC PMD) to the DPDK community so that it could be part > of the DPDK tree. > > Could someone please provide the guidelines and steps to do this? As of > now, ENIC PMD is being tested with DPDK 1.6.0r2. Is it alright to submit a > patch for DPDK 1.6.0r2? > > One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope > this is acceptable. The following thread in dpdk-dev influenced this > decision. > http://dpdk.org/ml/archives/dev/2013-July/000373.html > > ENIC PMD uses one interrupt per interface and it is used by the NIC for > signalling the driver in case of any error. Since this does not come in > the fast path, it should be acceptable, isn?t it? > > Please give your suggestions and comments. > > Thanks, > -Sujith
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi Sujith, It was exciting to see open source code coming from Cisco ensuring a DPDK application can run on any platform and with any cardI haven't seen your patch yet. What happened? HK > Date : Wed, 28 May 2014 08:06> From : dev [mailto:dev-bounces at dpdk.org] > To : dev at dpdk.org > Subject : [dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines > for submission > > > Hi all, > > We have been working on development of poll-mode driver for Cisco VIC > Ethernet NIC and integration of it with DPDK. We would like to submit this > poll-mode driver (ENIC PMD) to the DPDK community so that it could be part > of the DPDK tree. > > Could someone please provide the guidelines and steps to do this? As of > now, ENIC PMD is being tested with DPDK 1.6.0r2. Is it alright to submit a > patch for DPDK 1.6.0r2? > > One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope > this is acceptable. The following thread in dpdk-dev influenced this > decision. > http://dpdk.org/ml/archives/dev/2013-July/000373.html > > ENIC PMD uses one interrupt per interface and it is used by the NIC for > signalling the driver in case of any error. Since this does not come in > the fast path, it should be acceptable, isn?t it? > > Please give your suggestions and comments. > > Thanks, > -Sujith
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Thank you Anatoly ! I?ll take a look at it and get back in case of questions. -Sujith On 28/05/14 2:22 pm, "Burakov, Anatoly" wrote: >Hi Sujith, > >> One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope >> this is acceptable. The following thread in dpdk-dev influenced this >>decision. >> http://dpdk.org/ml/archives/dev/2013-July/000373.html > >You may find this [1] patchset interesting. Basically, it adds native >support for VFIO to do the binding and unbinding in DPDK. Whether it fits >your purposes depends on your code, but hopefully you'll be able to >simplify your code. > >[1] http://dpdk.org/ml/archives/dev/2014-May/002568.html > >Best regards, >Anatoly Burakov >DPDK SW Engineer > > >
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi Sujith, > One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope > this is acceptable. The following thread in dpdk-dev influenced this > decision. > http://dpdk.org/ml/archives/dev/2013-July/000373.html You may find this [1] patchset interesting. Basically, it adds native support for VFIO to do the binding and unbinding in DPDK. Whether it fits your purposes depends on your code, but hopefully you'll be able to simplify your code. [1] http://dpdk.org/ml/archives/dev/2014-May/002568.html Best regards, Anatoly Burakov DPDK SW Engineer
[dpdk-dev] PMD for Cisco VIC Ethernet NIC - Request for guidelines for submission
Hi all, We have been working on development of poll-mode driver for Cisco VIC Ethernet NIC and integration of it with DPDK. We would like to submit this poll-mode driver (ENIC PMD) to the DPDK community so that it could be part of the DPDK tree. Could someone please provide the guidelines and steps to do this? As of now, ENIC PMD is being tested with DPDK 1.6.0r2. Is it alright to submit a patch for DPDK 1.6.0r2? One aspect of ENIC PMD is that it works with VFIO-PCI and not UIO. Hope this is acceptable. The following thread in dpdk-dev influenced this decision. http://dpdk.org/ml/archives/dev/2013-July/000373.html ENIC PMD uses one interrupt per interface and it is used by the NIC for signalling the driver in case of any error. Since this does not come in the fast path, it should be acceptable, isn?t it? Please give your suggestions and comments. Thanks, -Sujith
