Re: [lng-odp] lng-odp Digest, Vol 48, Issue 37

[Elo, Matias (Nokia - FI/Espoo)]

Hi,

I’m traveling this week, but here are couple things you could try. The 
experimental DPDK zero copy mode doesn’t probably work with Mellanox NICs, so 
that should be disabled. If you haven’t already tested DPDK 17.11.1, it 
includes additional fixes for Mellanox NICs.

-Matias

On 18 Mar 2018, at 7.55, gyanesh patra 
> wrote:

Hi Matias,
Thanks for the patch to compile ODP with MLX drivers.
Finally, i got to try out the patch,  but it is not working for me. I am still 
getting the same error while running 'test/performance/odp_l2fwd'.

My configuration details are :
Driver:
MLNX_OFED_LINUX-4.2-1.0.0.0 (OFED-4.2-1.0.0)
Interface:
:81:00.0 'MT27700 Family [ConnectX-4]' if=enp129s0f0 drv=mlx5_core unused=
System:
Ubuntu 16.04 x86_64 4.4.0-116-generic
DPDK: 17.11
odp-linux :  1.18.0.1

I can see that the two differences in our configuration:
Ubuntu 16 (ours) vs Ubuntu 17 (yours)
MLNX_OFED:-  OFED-4.2-1.0.0 (ours) vs
​
OFED-4.2-1.2.0.0 (yours)

Do you think this might be causing the issue? If any other details needed to 
debug, i can help with them.

Thanks,
​
P Gyanesh Kumar Patra

Message: 2
Date: Tue, 13 Mar 2018 07:05:10 +
From: bugzilla-dae...@bugs.linaro.org
To: lng-odp@lists.linaro.org
Subject: [lng-odp] [Bug 3657] PktIO does not work with Mellanox
Interfaces
Message-ID:

<010001621e2d570a-9dbbd3f1-0755-42a1-90cf-a70d852eb079-000...@email.amazonses.com>

Content-Type: text/plain; charset="UTF-8"

https://bugs.linaro.org/show_bug.cgi?id=3657

--- Comment #4 from Matias Elo 
> ---
Hi,

The Mellanox PMD drivers (mlx5) have received quite a few fixes since DPDK
v17.08. I would suggest trying DPDK v17.11 as we are moving to that version
soon anyway.

I tested some Mellanox NICs in our lab (ConnectX-4 Lx) and they work properly
with odp-linux using DPDK v17.11 and Mellanox OFED 4.2
(MLNX_
​​
OFED_LINUX-4.2-1.2.0.0-ubuntu17.10-x86_64).

The following patch was required to add the necessary libraries.

diff --git a/m4/odp_dpdk.m4 b/m4/odp_dpdk.m4
index 0050fc4b..b144b23d 100644
--- a/m4/odp_dpdk.m4
+++ b/m4/odp_dpdk.m4
@@ -9,6 +9,7 @@ cur_driver=`basename "$filename" .a | sed -e 's/^lib//'`
 AS_VAR_APPEND([DPDK_PMDS], [-l$cur_driver,])
 AS_CASE([$cur_driver],
 [rte_pmd_nfp], [AS_VAR_APPEND([DPDK_LIBS], [" -lm"])],
+[rte_pmd_mlx5], [AS_VAR_APPEND([DPDK_LIBS], [" -libverbs -lmlx5"])],
 [rte_pmd_pcap], [AS_VAR_APPEND([DPDK_LIBS], [" -lpcap"])],
 [rte_pmd_openssl], [AS_VAR_APPEND([DPDK_LIBS], [" -lcrypto"])])
 done


Regards,
Matias

Re: [lng-odp] lng-odp Digest, Vol 48, Issue 37

[gyanesh patra]

Hi Matias,
Thanks for the patch to compile ODP with MLX drivers.
Finally, i got to try out the patch,  but it is not working for me. I am
still getting the same error while running 'test/performance/odp_l2fwd'.

My configuration details are :
Driver:
MLNX_OFED_LINUX-4.2-1.0.0.0 (OFED-4.2-1.0.0)
Interface:
:81:00.0 'MT27700 Family [ConnectX-4]' if=enp129s0f0 drv=mlx5_core
unused=
System:
Ubuntu 16.04 x86_64 4.4.0-116-generic
DPDK: 17.11
odp-linux :  1.18.0.1

I can see that the two differences in our configuration:
Ubuntu 16 (ours) vs Ubuntu 17 (yours)
MLNX_OFED:-  OFED-4.2-1.0.0 (ours) vs
​
OFED-4.2-1.2.0.0 (yours)

Do you think this might be causing the issue? If any other details needed
to debug, i can help with them.

Thanks,
​
P Gyanesh Kumar Patra

Message: 2
> Date: Tue, 13 Mar 2018 07:05:10 +
> From: bugzilla-dae...@bugs.linaro.org
> To: lng-odp@lists.linaro.org
> Subject: [lng-odp] [Bug 3657] PktIO does not work with Mellanox
> Interfaces
> Message-ID:
> <010001621e2d570a-9dbbd3f1-0755-42a1-90cf-a70d852eb079-0
> 0...@email.amazonses.com>
>
> Content-Type: text/plain; charset="UTF-8"
>
> https://bugs.linaro.org/show_bug.cgi?id=3657
>
> --- Comment #4 from Matias Elo  ---
> Hi,
>
> The Mellanox PMD drivers (mlx5) have received quite a few fixes since DPDK
> v17.08. I would suggest trying DPDK v17.11 as we are moving to that version
> soon anyway.
>
> I tested some Mellanox NICs in our lab (ConnectX-4 Lx) and they work
> properly
> with odp-linux using DPDK v17.11 and Mellanox OFED 4.2
> (MLNX_
> ​​
> OFED_LINUX-4.2-1.2.0.0-ubuntu17.10-x86_64).
>
> The following patch was required to add the necessary libraries.
>
> diff --git a/m4/odp_dpdk.m4 b/m4/odp_dpdk.m4
> index 0050fc4b..b144b23d 100644
> --- a/m4/odp_dpdk.m4
> +++ b/m4/odp_dpdk.m4
> @@ -9,6 +9,7 @@ cur_driver=`basename "$filename" .a | sed -e 's/^lib//'`
>  AS_VAR_APPEND([DPDK_PMDS], [-l$cur_driver,])
>  AS_CASE([$cur_driver],
>  [rte_pmd_nfp], [AS_VAR_APPEND([DPDK_LIBS], [" -lm"])],
> +[rte_pmd_mlx5], [AS_VAR_APPEND([DPDK_LIBS], [" -libverbs -lmlx5"])],
>  [rte_pmd_pcap], [AS_VAR_APPEND([DPDK_LIBS], [" -lpcap"])],
>  [rte_pmd_openssl], [AS_VAR_APPEND([DPDK_LIBS], [" -lcrypto"])])
>  done
>
>
> Regards,
> Matias
>
>