DPDK Mellanox mlx4 and mlx5

[Bing Zhao]

Have you installed the libs and headers in a standard CMAKE way?

> -----Original Message-----
> From: Lombardo, Ed <Ed.Lombardo at netscout.com>
> Sent: Saturday, August 10, 2024 1:40 AM
> To: Ali Alnubani <alialnu at nvidia.com>; users at dpdk.org
> Subject: RE: DPDK Mellanox mlx4 and mlx5
> 
> External email: Use caution opening links or attachments
> 
> 
> Hi Ali,
> Sorry for getting back to you so late.  Was pulled away for other reasons.
> I found online a way to tell meson and ninja to point to libibverbs.  Now
> meson and ninja are passing.
> 
> # Define the path where libibverbs.a is located ibverbs_lib_dir =
> '/root/rpmbuild/SOURCES/rdma-core-44.0/build/lib'
> ibverbs_include_dir = '/root/rpmbuild/SOURCES/rdma-core-
> 44.0/build/include'
> 
> # Create an include directory object
> inc = include_directories(ibverbs_include_dir)
> 
> # Declare a dependency for libibverbs, linking statically ibverbs_dep =
> declare_dependency(
>   link_args: ['-L' + ibverbs_lib_dir, '-libverbs'],
>   include_directories: inc
>   )
> # End of libibverbs
> 
> 
> Next, I copied the DPDK include and lib files to our application build VM.
> I built our application and now I see different errors during linking.
> 
> lib/dpdk-
> 2211.2/lib/librte_net_mlx4.a(net_mlx4_mlx4_glue.c.o):mlx4_glue.c:function
> mlx4_glue_dv_set_context_attr: error: undefined reference to
> 'mlx4dv_set_context_attr'
> lib/dpdk-
> 2211.2/lib/librte_net_mlx4.a(net_mlx4_mlx4_glue.c.o):mlx4_glue.c:function
> mlx4_glue_dv_init_obj: error: undefined reference to 'mlx4dv_init_obj'
> lib/dpdk-
> 2211.2/lib/librte_net_mlx4.a(net_mlx4_mlx4_glue.c.o):mlx4_glue.c:function
> mlx4_glue_dereg_mr: error: undefined reference to 'ibv_dereg_mr'
> lib/dpdk-
> 2211.2/lib/librte_net_mlx4.a(net_mlx4_mlx4_glue.c.o):mlx4_glue.c:function
> mlx4_glue_reg_mr: error: undefined reference to 'ibv_reg_mr_iova2'
> ...
> 
> Now I need to resolve these issue related to mlx4_glue.c If I have all the
> DPDK static libraries copied to my application build VM why does it
> complain about mlx4_glue.c functions are undefined?
> 
> Thanks,
> Ed
> 
> -----Original Message-----
> From: Ali Alnubani <alialnu at nvidia.com>
> Sent: Monday, August 5, 2024 2:55 AM
> To: Lombardo, Ed <Ed.Lombardo at netscout.com>; users at dpdk.org
> Subject: RE: DPDK Mellanox mlx4 and mlx5
> 
> External Email: This message originated outside of NETSCOUT. Do not click
> links or open attachments unless you recognize the sender and know the
> content is safe.
> 
> Hi Ed,
> 
> Maybe you didn't set PKG_CONFIG_PATH?
> 
> Also check "5.3.1.1. Upstream Dependencies" section in
> https://urldefense.com/v3/__https://doc.dpdk.org/guides/platform/mlx5.html
> *linux-
> prerequisites__;Iw!!Nzg7nt7_!AH7GKBDInkMDmwIafll16znS2hljXIeeOXYcfSKp9pAbA
> iVd-b6QrnHL8J_3Zz1S5ZxZSiB8qo4s2MzmyYQ$  to build rdma-core statically.
> 
> Regards,
> Ali