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

Stephen Hemminger stephen at networkplumber.org
Sat Jan 5 01:06:47 CET 2019


On Fri, 4 Jan 2019 20:06:48 +0000
Liwu Liu <liwuliu at fortinet.com> wrote:

> 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://mails.dpdk.org/archives/users/2018-November/003647.html
> )
> 
>   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,
> 
> Liwu
> 
> 
> 
> 
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> 

How are using the Mellanox device with Windows Server? PCI passthrough or SR-IOV?


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