Re: [dpdk-users] Wrong OFED version for DPDK 17.11.1 ?
Hi, Iain
Can you please check whether the OFED has been installed with '--upstream-libs
--dpdk' options? I mean,
./mlnxofedinstall --upstream-libs --dpdk
It is documented in "21.7. Quick Start Guide on OFED".
Since 17.11, we started to support upstream libraries (rdma-core in linux
community).
Thanks,
Yongseok
> On Apr 10, 2018, at 1:39 PM, Thomas Monjalon wrote:
>
> Please someone to answer on the mailing list?
>
> -
>
> Subject: [dpdk-users] Wrong OFED version for DPDK 17.11.1 ?
> Date: mardi 10 avril 2018, 21:11:49 CEST
> From: Iain Barker
> À : users@dpdk.org
>
> Hi all,
>
> I'm trying to build 17.11.1 against libibverbs from OFED 4.2-1.0.0.0 but
> having some API compatibility issues.
>
> According to the DPDK docs, that's the correct version for DPDK 17.11
> Ref: "Mellanox OFED version: 4.2" in
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdpdk.org%2Fdoc%2Fguides-17.11%2Fnics%2Fmlx5.html&data=02%7C01%7Cyskoh%40mellanox.com%7Cad42663d102c4442522308d59f23392d%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636589895991842393&sdata=Av22fZ218%2BMBAe77rgP0kxsCEet4bbm4dc7Z%2Fs7thSA%3D&reserved=0
>
> But I get multiple errors which suggest the API versions are incompatible.
> For example:
>
> priv->hw_csum =
> !!(device_attr_ex.device_cap_flags_ex &
> IBV_DEVICE_RAW_IP_CSUM);
>
> drivers/net/mlx5/mlx5.c:794:21: error: 'struct ibv_device_attr_ex' has no
> member named 'device_cap_flags_ex'
>
> MLNX_OFED_SRC-4.2-1.0.0.0 contains libibverbs-41mlnx1, and that has
> include/infiniband/verbs.h with the following typedef:
> struct ibv_device_attr_ex {
> struct ibv_device_attr orig_attr;
> uint32_t comp_mask;
> struct ibv_odp_caps odp_caps;
> };
>
> So the docs appear to be wrong. no way the OFED 4.2 version of mlx5.c is
> going to compile against that header.
>
> What version of libibverbs should I actually be using for DPDK 17.11.1 ?
>
> thanks,
> Iain
>
>
Re: [dpdk-users] Wrong OFED version for DPDK 17.11.1 ?
Hi Iain,
Tuesday, April 10, 2018 10:12 PM, Iain Barker:
> Subject: [dpdk-users] Wrong OFED version for DPDK 17.11.1 ?
>
> Hi all,
>
> I'm trying to build 17.11.1 against libibverbs from OFED 4.2-1.0.0.0 but
> having
> some API compatibility issues.
>
> According to the DPDK docs, that's the correct version for DPDK 17.11
> Ref: "Mellanox OFED version: 4.2" in
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdp
> dk.org%2Fdoc%2Fguides-
> 17.11%2Fnics%2Fmlx5.html&data=02%7C01%7Cshahafs%40mellanox.com%7
> C00e205bcc93b4ab687ce08d59f16ec56%7Ca652971c7d2e4d9ba6a4d149256f4
> 61b%7C0%7C0%7C636589843233074081&sdata=tRgQGtKP3WlalZ8XYVp6Qvq
> pkStiVgdup6EmZSKEC3c%3D&reserved=0
>
> But I get multiple errors which suggest the API versions are incompatible.
> For
> example:
>
>priv->hw_csum =
> !!(device_attr_ex.device_cap_flags_ex &
> IBV_DEVICE_RAW_IP_CSUM);
>
> drivers/net/mlx5/mlx5.c:794:21: error: 'struct ibv_device_attr_ex' has no
> member named 'device_cap_flags_ex'
>
> MLNX_OFED_SRC-4.2-1.0.0.0 contains libibverbs-41mlnx1, and that has
> include/infiniband/verbs.h with the following typedef:
> struct ibv_device_attr_ex {
> struct ibv_device_attr orig_attr;
> uint32_t comp_mask;
> struct ibv_odp_caps odp_caps;
> };
>
> So the docs appear to be wrong. no way the OFED 4.2 version of mlx5.c is
> going to compile against that header.
>
> What version of libibverbs should I actually be using for DPDK 17.11.1 ?
Starting from DPDK 17.11 MLX5 PMD uses rdma-core as the user space instead of
libibverbs/libmlx5. As you can see from the doc it will be installed when
calling mlnx ofed installation script using --usptream-libs.
You were installing the legacy ibverbs, hence the compilation errors. Try to
install rdma-core instead.
>
> thanks,
> Iain
