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List:       dpdk-users
Subject:    Re: [dpdk-users] How to install DPDK kernel module?
From:       David Aldrich <david.aldrich.ntml () gmail ! com>
Date:       2020-06-04 16:42:59
Message-ID: CAJK_iej2S+BfXAJsCCHmJhuGGZnrU4GHUVqiF-_0xsKTGXdQZw () mail ! gmail ! com
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>
> On Thu, 4 Jun 2020, David Aldrich wrote:
>
> > I have installed dpdk 18.08 on a Centos 7 machine, which has the kernel
> > source installed.
> >
> > I built dpdk using:
> >
> > $ make -j T=x86_64-native-linuxapp-gcc install
> > <snip>
> > Build complete [x86_64-native-linuxapp-gcc]
> > Installation cannot run with T defined and DESTDIR undefined
> >
> > I want to interface dpdk to a HP NIC that uses the Intel X722 chipset.
> So I
> > then run:
> >
> > $ /opt/dpdk/dpdk-18.08/usertools/dpdk-devbind.py -b igb_uio `lspci |
> > grep X722 | awk '{print $1}'`
> > Error - no supported modules(DPDK driver) are loaded
>
> probably igb_uio kernel module is not loaded, run lsmod to check if
> igb_uio is loaded
>
> >
> > I think that this error means that the DPDK kernel module is not
> installed.
> >
> > How can I fix this?
> >
>
> I usually use dpdk-setup.sh script from the dpdk source to compile and
> load igb_uio, and bind the NIC to igb_uio. otherwise, you may need to
> setup proper environment varibles to find and load the igb_uio module
> properly, I think distribution like Centos or Ubuntu has the proper DPDK
> script to load and bind NIC to DPDK drivers.
>

Thanks for your answer. Identifying the igb_uio module as necessary really
helped me. Module is loaded now.

On Thu, Jun 4, 2020 at 4:17 PM Vincent Li <vincent.mc.li@gmail.com> wrote:

>
>
>
>
> On Thu, 4 Jun 2020, David Aldrich wrote:
>
> > I have installed dpdk 18.08 on a Centos 7 machine, which has the kernel
> > source installed.
> >
> > I built dpdk using:
> >
> > $ make -j T=x86_64-native-linuxapp-gcc install
> > <snip>
> > Build complete [x86_64-native-linuxapp-gcc]
> > Installation cannot run with T defined and DESTDIR undefined
> >
> > I want to interface dpdk to a HP NIC that uses the Intel X722 chipset.
> So I
> > then run:
> >
> > $ /opt/dpdk/dpdk-18.08/usertools/dpdk-devbind.py -b igb_uio `lspci |
> > grep X722 | awk '{print $1}'`
> > Error - no supported modules(DPDK driver) are loaded
>
> probably igb_uio kernel module is not loaded, run lsmod to check if
> igb_uio is loaded
>
> >
> > I think that this error means that the DPDK kernel module is not
> installed.
> >
> > How can I fix this?
> >
>
> I usually use dpdk-setup.sh script from the dpdk source to compile and
> load igb_uio, and bind the NIC to igb_uio. otherwise, you may need to
> setup proper environment varibles to find and load the igb_uio module
> properly, I think distribution like Centos or Ubuntu has the proper DPDK
> script to load and bind NIC to DPDK drivers.
>
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