DPDK usage discussions
 help / color / Atom feed
From: Thomas Monjalon <thomas@monjalon.net>
To: "Benoit Ganne (bganne)" <bganne@cisco.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>,
	users@dpdk.org, viacheslavo@mellanox.com, matan@mellanox.com,
	rasland@mellanox.com, saeedm@mellanox.com, eranbe@mellanox.com,
Subject: Re: [dpdk-users] CX4-Lx VF link status in Azure
Date: Thu, 26 Mar 2020 19:52:27 +0100
Message-ID: <9551713.0AQdONaE2F@xps> (raw)
In-Reply-To: <CH2PR11MB432798DF21D43DD7AAEFEEAFC1CF0@CH2PR11MB4327.namprd11.prod.outlook.com>

Pasting back this important info:
Note that ethtool and '/sys/class/net/<iface>/speed' also fails
to report the link speed (but not the link status).

26/03/2020 19:27, Benoit Ganne (bganne):
> Yes everything is initialized correctly. The netdev itself is configured and usable from Linux (ping etc.). Just removing the over-strict check in mlx5 PMD is enough for everything to work fine: https://gerrit.fd.io/r/c/vpp/+/26152/1/build/external/patches/dpdk_20.02/0002-mlx5-azure-workaround.patch
> The link speed is unknown but this is not issue, and link state and other link info are correctly reported.
> Thomas, any input regarding this behavior in mlx5 PMD?

I am not aware about the lack of link speed info.
It is probably not specific to ConnectX-4 Lx.
I guess it happens only with Hyper-V?

Cc mlx5 maintainers

  reply index

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-25 19:07 Benoit Ganne (bganne)
2020-03-25 21:32 ` Stephen Hemminger
2020-03-25 22:48 ` Stephen Hemminger
2020-03-26 14:26   ` Benoit Ganne (bganne)
2020-03-26 17:57     ` Stephen Hemminger
2020-03-26 18:27       ` Benoit Ganne (bganne)
2020-03-26 18:52         ` Thomas Monjalon [this message]
2020-03-26 19:00           ` Benoit Ganne (bganne)
2020-03-26 20:09             ` Mark Bloch
2020-03-26 20:40               ` Thomas Monjalon
2020-03-26 21:31                 ` Thomas Monjalon
2020-03-27 10:02                   ` Benoit Ganne (bganne)
2020-03-27 10:13                     ` Thomas Monjalon
2020-03-27 17:26                       ` Benoit Ganne (bganne)
2020-03-27 22:34                         ` Thomas Monjalon

Reply instructions:

You may reply publically 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:

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

  git send-email \
    --in-reply-to=9551713.0AQdONaE2F@xps \
    --to=thomas@monjalon.net \
    --cc=bganne@cisco.com \
    --cc=eranbe@mellanox.com \
    --cc=markb@mellanox.com \
    --cc=matan@mellanox.com \
    --cc=rasland@mellanox.com \
    --cc=saeedm@mellanox.com \
    --cc=stephen@networkplumber.org \
    --cc=users@dpdk.org \
    --cc=viacheslavo@mellanox.com \


* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK usage discussions

Archives are clonable:
	git clone --mirror http://inbox.dpdk.org/users/0 users/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 users users/ http://inbox.dpdk.org/users \
	public-inbox-index users

Newsgroup available over NNTP:

AGPL code for this site: git clone https://public-inbox.org/ public-inbox