Re: [dpdk-dev] No probed ethernet devices /DPDP 1.7.1 in Fedora 21

[sothy shan <sothy.e98@gmail.com>]

On Wed, Dec 24, 2014 at 4:04 PM, Neil Horman <nhorman@tuxdriver.com> wrote:

> On Wed, Dec 24, 2014 at 02:26:21PM +0100, sothy shan wrote:
> > Hello!
> >
> > I am playing with DPDK 1.7.1 in Fedora.
> >
> > When I do like this:
> >
> > export RTE_SDK=$(pwd)export RTE_TARGET="x86_64-ivshmem-linuxapp-gcc"
> > make install T="$RTE_TARGET"
> >
> > It worked. Means Testpmd is running.
> >
> > When I run as mentioned below:
> >
> > make CONFIG_RTE_BUILD_SHARED_LIB=y  install T="$RTE_TARGET"
> >
> > Build is sucess. But Testpmd gives error.
> >
> > Error is :
> >
> The dpdk ivshmem build assumes the presence of ivshmem devices as plumbed
> by
> qemu virtual guests.  If you don't have a qemu guest running dpdk won't
> find any
> shared memory devices, which is exactly what you are seeing.  That said,
> even if
> you are running qemu guests, IIRC Fedora doesn't enable ivshmem because
> the code
> has some security and behavioral issues still I think.  You'll need to
> rebuild
> qemu to add support for it.
>

My understanding is that It is problem of enabling
CONFIG_RTE_BUILD_SHARED_LIB=y in make command, I am able to build target of
x86_64-ivshmem-linuxapp-gcc alone without shared_lib flag. I suspect an
error because of shared lib flag.

Sothy

>
> Neil
>
>