From: Vincent JARDIN <vincent.jardin@6wind.com>
To: "Chen Jing D(Mark)" <jing.d.chen@intel.com>, dev@dpdk.org
Cc: ferruh.yigit@intel.com, jingjing.wu@intel.com
Subject: Re: [dpdk-dev] [PATCH 0/4] enhancement to i40e PF host driver
Date: Fri, 23 Dec 2016 13:52:38 +0100 [thread overview]
Message-ID: <64ddfd77-e71e-298e-687a-a9991f8c64ee@6wind.com> (raw)
In-Reply-To: <1482476332-21376-1-git-send-email-jing.d.chen@intel.com>
Thanks for this update.
Still, I would like to get good arguments why DPDK should be a PF
because it creates fragmentations. Please, first, let's reply to:
http://dpdk.org/ml/archives/dev/2016-December/053107.html
Having both Linux and DPDK being PF, it means that we double the
combinations so we double the issues.
The following should be used instead: assuming you want to use DPDK PF
for dataplane feature, an alternative is,
- configure one VF on the hypervisor from Linux's PF, let's name if
VF_forPFtraffic, see
http://dpdk.org/doc/guides/howto/flow_bifurcation.html
- have no (or few IOs) to the PF's queue
- assign the traffic to all VF_forPFtraffic's queues of the hypervisor,
- run DPDK into the hypervisor's VF_forPFtraffic
Thank you,
Vincent
next parent reply other threads:[~2016-12-23 12:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1482476332-21376-1-git-send-email-jing.d.chen@intel.com>
2016-12-23 12:52 ` Vincent JARDIN [this message]
2016-12-26 12:17 ` Chen, Jing D
2017-01-03 0:59 Chen Jing D(Mark)
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=64ddfd77-e71e-298e-687a-a9991f8c64ee@6wind.com \
--to=vincent.jardin@6wind.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=jing.d.chen@intel.com \
--cc=jingjing.wu@intel.com \
/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).