Re: [dpdk-users] HELP: MLX4 problem

[Adrien Mazarguil <adrien.mazarguil@6wind.com>]

Hi Masaru,

On Tue, Jan 12, 2016 at 06:43:53PM +0900, Masaru Kawashima wrote:
> Hi, all
> 
> I'm trying to use dpdk with Mellanox ConnectX-3.
> But, mlnx4 pmd cannot work fine.
> 
> Following is my environment:
> 
>   OS: CentOS 6.5 (x86_64)
>   Mellanox OFED: MLNX_OFED_LINUX-3.1-1.1.0.1-rhel6.5-x86_64
>   DPDK: MLNX_DPDK-2.1_1.1
> 
> I'm trying to run testpmd, but librte_pmd_mlx4 reports
> "ibv_exp_query_device() failed",
> and EAL reports "No probed ethernet devices".
> 
> What can I do next to work mlx4 pmd fine?
> 
> 
> Following is the testpmd's log:
> 
> EAL: Detected lcore 0 as core 0 on socket 0
> EAL: Detected lcore 1 as core 1 on socket 0
> EAL: Detected lcore 2 as core 2 on socket 0
> EAL: Detected lcore 3 as core 3 on socket 0
> EAL: Detected lcore 4 as core 4 on socket 0
> EAL: Detected lcore 5 as core 5 on socket 0
> EAL: Detected lcore 6 as core 8 on socket 0
> EAL: Detected lcore 7 as core 9 on socket 0
> EAL: Detected lcore 8 as core 10 on socket 0
> EAL: Detected lcore 9 as core 11 on socket 0
> EAL: Detected lcore 10 as core 12 on socket 0
> EAL: Detected lcore 11 as core 13 on socket 0
> EAL: Detected lcore 12 as core 0 on socket 1
> EAL: Detected lcore 13 as core 1 on socket 1
> EAL: Detected lcore 14 as core 2 on socket 1
> EAL: Detected lcore 15 as core 3 on socket 1
> EAL: Detected lcore 16 as core 4 on socket 1
> EAL: Detected lcore 17 as core 5 on socket 1
> EAL: Detected lcore 18 as core 8 on socket 1
> EAL: Detected lcore 19 as core 9 on socket 1
> EAL: Detected lcore 20 as core 10 on socket 1
> EAL: Detected lcore 21 as core 11 on socket 1
> EAL: Detected lcore 22 as core 12 on socket 1
> EAL: Detected lcore 23 as core 13 on socket 1
> EAL: Support maximum 128 logical core(s) by configuration.
> EAL: Detected 24 lcore(s)
> EAL: Setting up physically contiguous memory...
> EAL: Ask a virtual area of 0x80000000 bytes
> EAL: Virtual area found at 0x7f2940000000 (size = 0x80000000)
> EAL: Ask a virtual area of 0x80000000 bytes
> EAL: Virtual area found at 0x7f2880000000 (size = 0x80000000)
> EAL: Requesting 2 pages of size 1024MB from socket 0
> EAL: Requesting 2 pages of size 1024MB from socket 1
> EAL: TSC frequency is ~2300002 KHz
> EAL: Master lcore 0 is ready (tid=f6cdc8a0;cpuset=[0])
> EAL: lcore 2 is ready (tid=f58d2700;cpuset=[2])
> EAL: lcore 1 is ready (tid=f62d3700;cpuset=[1])
> EAL: lcore 3 is ready (tid=f4ed1700;cpuset=[3])
> EAL: PCI device 0000:02:00.0 on NUMA socket 0
> EAL:   probe driver: 15b3:1003 librte_pmd_mlx4
> PMD: librte_pmd_mlx4: PCI information matches, using device "mlx4_0" (VF:
> false)
> PMD: librte_pmd_mlx4: 1 port(s) detected
> PMD: librte_pmd_mlx4: ibv_exp_query_device() failed

Make sure ib_uverbs, mlx4_en, mlx4_ib and mlx4_core are all loaded and
coming from Mellanox OFED (normally not the original modules provided by
your Linux distribution), and that you're using an up-to-date firmware
version, although installing MLNX_OFED should have taken care of these
automatically.

-- 
Adrien Mazarguil
6WIND