[lustre-discuss] Question about Install OFED with --with-nvmf

[Xinliang Liu]

Hi Shuobin,

On Tue, 27 Jun 2023 at 15:01, 王烁斌 via lustre-discuss <
lustre-discuss at lists.lustre.org> wrote:

> Hi~
>
> I want to use RDMA between sever and storages.
>
> I try this and get error as follow:
> *root at 172-0-37-44 rdma]# nvme discover -t rdma -a 192.168.11.12 -5 4420*
> *Failed to write to /dev/nvme-fabrics: Invalid argument*
>
> log message in kernel :
> *26 20:44:22 172-0-37-44 kernel: nvme fabrics: no handler found for
> transport rdma.*
>
> After investigation, it was found that the issue was due to the "OFED"
> driver not being installed with the "-- with nvmf" option. So I tried the
> following installation method:
> *./mlnxofedinstall --add-kernel-support  --kmp --with-nvmf*
>
> *but I get this：*
> *WARNING: NVMEoF is not supported over kernel
> 4.18.0-425.3.1.el8_lustre.x86_64, will continue installation without it.*
>
>
> *so，How should I locate the problem？*
>

You can check the script where the WARNING prints, I think it should check
the kernel configuration something like this:
$ egrep "CONFIG_NVME_FABRICS|CONFIG_NVME_RDMA"  -rn
/boot/config-4.18.0-477.10.1.el8_8.aarch64
1810:CONFIG_NVME_FABRICS=m
1811:CONFIG_NVME_RDMA=m

Best,
Xinliang


>
> Thanks！
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> lustre-discuss at lists.lustre.org
> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
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