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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: [dts] 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: 5+ 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
     [not found]       ` <98CBD80474FA8B44BF855DF32C47DC35C610BC@smartserver.smartshare.dk>
2020-06-25 20:04         ` Daniel Kirichok

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