Re: [dpdk-users] Using DPDK with a pre-existing C++ application compiled in Eclipse.

["terry.montague.1980@btinternet.com" <terry.montague.1980@btinternet.com>]

Hi Gaëtan,

Its really only the net-i40e driver I need (for Intel XL710 cards). I'm not building DPDK itself as a shared library though.

Best Regards

Terry



----Original message----
>From : gaetan.rivet@6wind.com
Date : 20/06/17 - 15:57 (BST)
To : terry.montague.1980@btinternet.com
Cc : users@dpdk.org
Subject : Re: [dpdk-users] Using DPDK with a pre-existing C++ application compiled in Eclipse.

Hi,

On Tue, Jun 20, 2017 at 03:47:07PM +0100, terry.montague.1980@btinternet.com wrote:
> Hi there,
> Please excuse what to some may appear to be an stupid question.
> I'm trying to use DPDK with an existing C++ application on Linux, using Eclipse Neon.2 as the IDE due to the use of a lot of 3rd party libraries. I'm not using the DPDK build process with the .mk makefiles. I'm just linking to the prebuilt rte_ libs.
> I have got the project to compile, but when running rte_eal_init() with some suitable arguments that I know to be good in a simple standalone application, the PMDs appear to be absent, so the app cannot probe any PCI devices.
> Is there any way this approach is going to work, or do applications that use DPDK have to be compiled as per the example applications with rte.vars.mk/rte.extapp.mk ?
> Thanks in advance.
> Terry

Which NIC are you using? Which PMD do you need?

You can dynamically link specific DPDK drivers using -d in the EAL
parameters. Note that using PMDs as dynamic libraries may slightly
impair performances.

-- 
Gaëtan Rivet
6WIND