Tuesday, July 3, 2018 10:01 AM, Asaf Sinai:

Subject: Re: [dpdk-dev] Compilation of MLX5 driver

Additional questions:
Is it possible to use MLNX_OFED-4.3 on Ubuntu 12.04?

I am not sure if there is such build, the oldest OFED build I see is for ubuntu14.10. ubuntu12.04 is really old.

Why is the driver related to OS version?

Because once you install MLNX_OFED it needs to backport patches, so the base version is important. 

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Asaf Sinai
Sent: Monday, July 2, 2018 05:22 PM
To: Shahaf Shuler <redacted>
Cc: dev@dpdk.org; Nitin Katiyar <redacted>; Nélio
Laranjeiro [off-list ref]
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

Hi Shahaf,

1. Can you please explain what is the meaning of upstream-libs?

Upstream-libs means the DPDK works w/ rdma-core library instead of legacy verbs which exists only on Mellanox OFED.

2. We use Ubuntu 12.04. so if we would like to stay with it, and use
MLNX_OFED-4.0, which latest DPDK version should be used?

That will be v17.05

Thanks,
Asaf

-----Original Message-----
From: Shahaf Shuler [mailto:shahafs@mellanox.com]
Sent: Monday, July 2, 2018 05:11 PM
To: Asaf Sinai <redacted>
Cc: dev@dpdk.org; Nitin Katiyar <redacted>; Nélio
Laranjeiro [off-list ref]
Subject: RE: [dpdk-dev] Compilation of MLX5 driver

Hi Asaf,

Monday, July 2, 2018 3:46 PM, Asaf Sinai:

quoted

Subject: RE: [dpdk-dev] Compilation of MLX5 driver

Additional details:

Ubuntu: 12.04.3
Linux: 3.2.0-53-virtual
GCC: 4.7.2 (Ubuntu/Linaro 4.7.2-11precise2)

I tried to build DPDK 18.05 after installing the Mellanox OFED driver

DPDK version 18.05 supports only upstream-libs (rdma-core).

quoted

(MLNX_OFED_LINUX-4.0-2.0.0.1-ubuntu12.04-x86_64), but it failed with
the mentioned error.
So I removed the OFED driver and installed the EN driver (mlnx-en-4.0-
2.0.0.1-ubuntu12.04-x86_64), but it also failed with the same error.
Both drivers were compiled with "--dpdk" argument ("--upstream-libs"
is not supported).

Yes MLNX_OFED-4.0 is too old for upstream libs. You should use
MLNX_OFED-4.2 and above.
Or alternatively use an older DPDK version (not recommended).

quoted

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Asaf Sinai
Sent: Monday, July 2, 2018 03:20 PM
To: Shahaf Shuler <redacted>
Cc: dev@dpdk.org; Nitin Katiyar <redacted>; Nélio
Laranjeiro [off-list ref]
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

Hi Shahaf,

I face similar problem with DPDK 18.05, where missing file is "mlx5dv.h":

	== Build drivers/net/mlx5
	  CC mlx5.o
	In file included from
/net/emcradware/CM_Users/asafsi/work/drivers/dpdk/dpdk-
18.05/drivers/net/mlx5/mlx5.h:35:0,
	                 from
/net/emcradware/CM_Users/asafsi/work/drivers/dpdk/dpdk-
18.05/drivers/net/mlx5/mlx5.c:40:
	/net/emcradware/CM_Users/asafsi/work/drivers/dpdk/dpdk-
18.05/drivers/net/mlx5/mlx5_mr.h:19:31: fatal error: infiniband/mlx5dv.h:
No such file or 	directory
	 #include <infiniband/mlx5dv.h>
	                               ^
	compilation terminated.

Can you please advise?

Thanks,
Asaf

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Nitin Katiyar
Sent: Thursday, May 31, 2018 02:44 PM
To: Nélio Laranjeiro <redacted>
Cc: Shahaf Shuler <redacted>; dev@dpdk.org
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

Thanks Shahaf, it worked after removing the options you specified.

Regards,
Nitin

-----Original Message-----
From: Nélio Laranjeiro [mailto:nelio.laranjeiro@6wind.com]
Sent: Thursday, May 31, 2018 3:23 PM
To: Nitin Katiyar <redacted>
Cc: Shahaf Shuler <redacted>; dev@dpdk.org
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

On Thu, May 31, 2018 at 09:14:03AM +0000, Nitin Katiyar wrote:

quoted

Yes,I installed it using --dpdk --upstream-libs. What is the way
forward now?

In v17.05 MLX5 PMD is still relying on libibverbs and libmlx5, the way
Those options you used are necessary to select in their package the
installation of
libverbs,libmlx5 or rdma-core.
Doing this you have selected rdma-core which is not supported in
v17.05 DPDK version.

You need to install Mellanox OFED without those two options to select
libibverbs, libmlx5 to make it work.

Regards,

quoted

Regards,
Nitin

-----Original Message-----
From: Nélio Laranjeiro [mailto:nelio.laranjeiro@6wind.com]
Sent: Thursday, May 31, 2018 1:36 PM
To: Nitin Katiyar <redacted>
Cc: Shahaf Shuler <redacted>; dev@dpdk.org
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

On Thu, May 31, 2018 at 07:01:17AM +0000, Nitin Katiyar wrote:

quoted

Hi,
It has following files:

arch.h  ib.h  kern-abi.h  mlx4dv.h  mlx5dv.h  opcode.h  sa.h
sa-kern-abi.h  verbs.h

I tried with both MLNX_OFED_LINUX-4.2-1.0.0.0 and
MLNX_OFED_LINUX-4.2-1.2.0.0-ubuntu14.04-x86_64

Did you installed Mellanox OFED with the --dpdk --upstream-libs

arguments for the installation script?

quoted

If it is the case, you should not add them for this version, those
options are

for DPDK v17.11 and higher.

quoted

Regards,

quoted

Regards,
Nitin

-----Original Message-----
From: Shahaf Shuler [mailto:shahafs@mellanox.com]
Sent: Thursday, May 31, 2018 10:51 AM
To: Nitin Katiyar <redacted>; Nélio Laranjeiro
[off-list ref]
Cc: dev@dpdk.org
Subject: RE: [dpdk-dev] Compilation of MLX5 driver

Wednesday, May 30, 2018 7:45 PM, Nitin Katiyar:

quoted

Hi,
I was compiling 17.05.02.
Regards,
Nitin

-----Original Message-----
From: Nélio Laranjeiro [mailto:nelio.laranjeiro@6wind.com]
Sent: Wednesday, May 30, 2018 6:42 PM
To: Nitin Katiyar <redacted>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Compilation of MLX5 driver

Hi,

On Wed, May 30, 2018 at 11:54:31AM +0000, Nitin Katiyar wrote:

quoted

Hi,
I am trying to compile MLX5 PMD driver by setting

"CONFIG_RTE_LIBRTE_MLX5_PMD=y" and hitting following

compilation

quoted

quoted

quoted

quoted

error.

quoted

fatal error: infiniband/mlx5_hw.h: No such file or directory

Can you list the files you have under /usr/include/infiniband ?

quoted

quoted

I have installed MLNX_OFED _LINUX-4.2-1.2.0 on my Ubuntu 14.04
machine

but still hitting the same error. Am I missing some other package?

Which version of DPDK are you using (it is important to help)?

Regards,

--
Nélio Laranjeiro
6WIND

--
Nélio Laranjeiro
6WIND

--
Nélio Laranjeiro
6WIND