[dpdk-users] Cannot run DPDK applications using Mellanox NIC under Hyper-V

Liwu Liu liwuliu at fortinet.com
Mon Jan 7 18:46:03 CET 2019

Hi Olga,

   We target at Azure though we use a local Windows Server for better debugging purpose.
   I tested on Ubuntu 18 at Azure with SRIOV. It seems to be the case doing "ethtool -U" to attach flow also fails due to same reasone (error 12 out of memory).
   Many thanks,

-----Original Message-----
From: Olga Shern <olgas at mellanox.com> 
Sent: Saturday, January 5, 2019 1:46 AM
To: Liwu Liu <liwuliu at fortinet.com>; users at dpdk.org
Subject: RE: [dpdk-users] Cannot run DPDK applications using Mellanox NIC under Hyper-V

HI Liwu, 

Are you running your application on Azure VMs?


-----Original Message-----
From: users [mailto:users-bounces at dpdk.org] On Behalf Of Liwu Liu
Sent: Saturday, January 5, 2019 12:29 AM
To: users at dpdk.org
Subject: [dpdk-users] Cannot run DPDK applications using Mellanox NIC under Hyper-V

Hi Team,

    We used to have similar problem for Ubuntu 18.04 hypervisor and resolved by set log_num_mgm_entry_size=-1. (Refer to https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmails.dpdk.org%2Farchives%2Fusers%2F2018-November%2F003647.html&data=02%7C01%7Colgas%40mellanox.com%7C0f967c6706714e2e992008d67294013a%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C1%7C636822377359958550&sdata=AsxbxqWhKsGgMAMulz92p6SXzfPR%2FCxebrJ88fMO%2B5k%3D&reserved=0

  Somehow for Windows Servers with MLNX VPI, I do not know where to set such and DPDK over MLX4 on linux vm has same failure of attaching flow.

    [  374.568992] <mlx4_ib> __mlx4_ib_create_flow: mcg table is full. Fail to register network rule. size = 64 (out of memory error code)

    Would like to get your help on this. It seems to be the case that the PF interface is not configured to trust VF interfaces to be able to add new flow rules.

   Many thanks for help,


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