Re: [dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-23 Thread Victor Huertas
--Original Message- > > From: konstantin.anan...@intel.com [mailto:konstantin.anan...@intel.com] > > Sent: Friday, February 23, 2018 4:27 PM > > To: Victor Huertas ; long...@viettel.com.vn > > Cc: dev@dpdk.org; us...@dpdk.org > > Subject: RE: [dpdk-dev] Suggestions on

[dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-23 Thread longtb5
konstantin.anan...@intel.com [mailto:konstantin.anan...@intel.com] > Sent: Friday, February 23, 2018 4:27 PM > To: Victor Huertas ; long...@viettel.com.vn > Cc: dev@dpdk.org; us...@dpdk.org > Subject: RE: [dpdk-dev] Suggestions on how to customize the metadata fields > of each packet &g

Re: [dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-23 Thread Ananyev, Konstantin
Hi Victor, > > Thanks for your quick answer, > > I have read so many documents and web pages on this issue that probably I > confounded the utility of the headroom. It is good to know that this 128 > bytes space is available to my disposal. The fact of being lost once the > NIC transmits the fra

Re: [dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-23 Thread Victor Huertas
Thanks for your quick answer, I have read so many documents and web pages on this issue that probably I confounded the utility of the headroom. It is good to know that this 128 bytes space is available to my disposal. The fact of being lost once the NIC transmits the frame it is not a problem at a

[dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-22 Thread longtb5
Hi, First, I think your question should be sent to the user mailing list, not the dev mailing list. > I have seen that each packet has a headroom memory space (128 bytes long) > where RSS hashing and other metadata provided by the NIC is stored. If I'm not mistaken, the headroom is not where met

[dpdk-dev] Suggestions on how to customize the metadata fields of each packet

2018-02-22 Thread Victor Huertas
Hi all, In the project I am working I need to define custom metadata fields on each packet once they are captured using DPDK. I have seen that each packet has a headroom memory space (128 bytes long) where RSS hashing and other metadata provided by the NIC is stored. This information will be usefu