DPDK patches and discussions
 help / color / mirror / Atom feed
From: Thomas Monjalon <thomas@monjalon.net>
To: Daniel Kirichok <dkirichok@iol.unh.edu>
Cc: dts@dpdk.org, dev@dpdk.org, Lincoln Lavoie <lylavoie@iol.unh.edu>,
	david.marchand@redhat.com, ferruh.yigit@intel.com,
	arybchenko@solarflare.com, mb@smartsharesystems.com,
	i.dyukov@samsung.com, rasland@mellanox.com, j.hendergart@f5.com
Subject: Re: [dpdk-dev] Speed Capabilities Feature
Date: Wed, 24 Jun 2020 21:55:07 +0200	[thread overview]
Message-ID: <9145227.bPS0MTqRLS@thomas> (raw)
In-Reply-To: <CAFRcHM3J40Ta-dZVeAZtQzd=R_NPdDzAn3Jx+roRhb-NBKT+Eg@mail.gmail.com>

Hi,

A bit of context: Daniel is going to implement a test in DTS
for ethdev speed capability:
http://doc.dpdk.org/guides/nics/features.html#speed-capabilities

24/06/2020 21:32, Daniel Kirichok:
> The Speed Capabilities test will first check the speed of each interface
> that the device lists through ethtool.

I assume you mean doing a query in Linux before starting DPDK.

> Then it compares each interface
> speed to a user-defined set of expected speeds set in a newly created
> config file, `speed_capabilities.cfg`.

Why do you need such config file?

> The test fails if an interface is
> found that isn’t accounted for in the cfg file, the detected speed is less
> than 1 Gb/s, or an interface detects a different speed than what is
> expected from the cfg file. Otherwise, it passes.

So you don't test DPDK?

Would be interesting to compare the actual link speed
from rte_eth_link_get() with the advertised capability.

What else do we want to test regarding link speed? autonegotiation?



  reply	other threads:[~2020-06-24 19:55 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-24 19:32 Daniel Kirichok
2020-06-24 19:55 ` Thomas Monjalon [this message]
2020-06-24 20:01   ` Lincoln Lavoie
2020-06-24 20:09     ` Thomas Monjalon
2020-06-25  7:52       ` Morten Brørup
2020-06-25 20:04         ` Daniel Kirichok

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=9145227.bPS0MTqRLS@thomas \
    --to=thomas@monjalon.net \
    --cc=arybchenko@solarflare.com \
    --cc=david.marchand@redhat.com \
    --cc=dev@dpdk.org \
    --cc=dkirichok@iol.unh.edu \
    --cc=dts@dpdk.org \
    --cc=ferruh.yigit@intel.com \
    --cc=i.dyukov@samsung.com \
    --cc=j.hendergart@f5.com \
    --cc=lylavoie@iol.unh.edu \
    --cc=mb@smartsharesystems.com \
    --cc=rasland@mellanox.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).