Hi David It seems we just have minor progress, we have a script which is using setpci to do that. [dpdk-dev] scripts: enable extended tag of PCIe (http://www.dpdk.org/dev/patchwork/patch/2762/)
Yes, Stephen's patch could be the direction we need to follow up. Thanks for your indicating that! Regards, Helin From: David Marchand [mailto:david.march...@6wind.com] Sent: Monday, February 9, 2015 8:12 PM To: Zhang, Helin Cc: Thomas Monjalon; dev at dpdk.org Subject: Re: [dpdk-dev] i40e: Steps and required configurations of how to achieve the best performance! Hello Helin,? On Thu, Oct 16, 2014 at 2:43 AM, Zhang, Helin <helin.zhang at intel.com> wrote: Hi Thomas ? Yes, your proposal it the perfect one, also the most complicated one. I was thinking of that one as well, but we did not have enough time for that in our 1.8 timeframe. In the long run, I agree with you to implement EAL function to access PCI config space directly. I will try to put it in our plan as soon as possible, if no objections. ? For now, I think the quickest and easiest way might be to write out a script of using ?setpci?, the Linux command. It is harmless for our code base, and we can remove it when we have better choice. What do you think? ? Thank you very much for the great comments on this topic! I really like it! Did you make any progress on this ? Actually, looking at Stephen patches (http://dpdk.org/dev/patchwork/patch/3024/), I think we could go with this approach once both uio and vfio are fine. --? David Marchand
