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From: David Christensen <drc@linux.vnet.ibm.com>
To: users@dpdk.org
Subject: Re: [dpdk-users] DPDK 20.05 MLX5 'no Verbs device matches PCI device , are kernel drivers loaded'
Date: Mon, 26 Oct 2020 09:44:50 -0700	[thread overview]
Message-ID: <27caa847-12aa-cdca-6922-9cfc8707a969@linux.vnet.ibm.com> (raw)
In-Reply-To: <4fe60c74.2465.1752a775ced.Coremail.iamwangmali@163.com>

> I am trying to test the mlx5 performance on ubuntu 16.04, and when I run the testpmd with mlx nic,
> 
> Some error happened.
> 
> 
> 
> 
> EAL: Probe PCI driver: net_mlx5 (15b3:1018) device: 0000:af:02.3 (socket 1)

This PCI device ID, 15b3:1018, represents a virtual function (VF) 
according to https://pci-ids.ucw.cz/read/PC/15b3/1018.  Why are you 
using a VF in this situation?  Are you running inside a VM or on a bare 
metal host?

> 
> net_mlx5: mlx5.c:3322: mlx5_pci_probe(): no Verbs device matches PCI device 0000:af:02.3, are kernel drivers loaded?
> 
> EAL: Requested device 0000:af:02.3 cannot be used
> 
> EAL: Probe PCI driver: net_mlx5 (15b3:1018) device: 0000:af:02.4 (socket 1)
> 
> net_mlx5: mlx5.c:3322: mlx5_pci_probe(): no Verbs device matches PCI device 0000:af:02.4, are kernel drivers loaded?
> 
> EAL: Requested device 0000:af:02.4 cannot be used
> 
> EAL: Bus (pci) probe failed.

The code in mlx5_os_pci_probe() suggests that the DPDK mlx5 driver 
didn't find any Infiniband devices on your system.  Is your adapter 
enabled for Infiniband on the host system?  What does "lspci | grep 
Mellanox" return?  What about "ibv_devinfo"?

Dave

      reply	other threads:[~2020-10-26 16:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-15  4:14 baoli.wnag
2020-10-26 16:44 ` David Christensen [this message]

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