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From: "Benoit Ganne (bganne)" <bganne@cisco.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "users@dpdk.org" <users@dpdk.org>, Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [dpdk-users] CX4-Lx VF link status in Azure
Date: Thu, 26 Mar 2020 18:27:08 +0000
Message-ID: <CH2PR11MB432798DF21D43DD7AAEFEEAFC1CF0@CH2PR11MB4327.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20200326105753.5d1a7e05@hermes.lan>

> Is the Mellanox device being brought up by the base kernel setup?
> I find that for Mellanox the device has to be started from kernel (like
> ip) and DPDK doesn't do itself.

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?

Thx
ben

  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) [this message]
2020-03-26 18:52         ` Thomas Monjalon
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

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