DPDK usage discussions
 help / color / mirror / Atom feed
From: Antoine POLLENUS <a.pollenus@deltacast.tv>
To: "users@dpdk.org" <users@dpdk.org>
Subject: Re: [dpdk-users] Running a second DPDK process that prints the NIC's link status/speed causes the first DPDK process to stop transmitting.
Date: Fri, 7 Sep 2018 10:38:32 +0000	[thread overview]
Message-ID: <5b2991fd3fd341bfa8b09a414f5f54f6@deltacast.tv> (raw)

Francis

You should read these 2 resources  on how DPDK multi process works:

https://doc.dpdk.org/guides/prog_guide/multi_proc_support.html

https://doc.dpdk.org/guides/sample_app_ug/multi_process.html

and most specifically this one :

https://doc.dpdk.org/guides/prog_guide/multi_proc_support.html#multi-process-limitations

The delivery of interrupts, such as Ethernet* device link status interrupts, do not work in secondary processes. All interrupts are triggered inside the primary process only. Any application needing interrupt notification in multiple processes should provide its own mechanism to transfer the interrupt information from the primary process to any secondary process that needs the information.


Regards

Antoine

             reply	other threads:[~2018-09-07 10:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-07 10:38 Antoine POLLENUS [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-09-07  8:26 Francis Rammeloo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=5b2991fd3fd341bfa8b09a414f5f54f6@deltacast.tv \
    --to=a.pollenus@deltacast.tv \
    --cc=users@dpdk.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).