[dpdk-dev] "Port 0 is not present on the board" when building DPDK libraries as shared

[dpdk-dev] "Port 0 is not present on the board" when building DPDK libraries as shared

[Mastorakis, Spyridon]

Hi guys,

When I compile the DPDK libraries as shared (by modifying the base_config file) and try to run an application (e.g., l3fwd), I get an error that port 0 is not present on board.

I have cleaned the system several times (unbinded NICs, removed igb_uio and uio modules and hugepage mappings) and have configured everything again, but this does not resolve the issue. I am also not able to add a virtual device (specifically a virtual ring) when I compile as a shared library (no PMD drivers found).

When I compile the DPDK libraries as static though, everything works perfectly fine and I can run the DPDK applications and add virtual rings.

I have tried dpdk-17.02 and the latest stable dpdk version (16.11.1), but none of them seems to work.

Do you have any clue why this is happening?

Thank you in advance,
Spyros

Re: [dpdk-dev] "Port 0 is not present on the board" when building DPDK libraries as shared

[Bruce Richardson]

On Thu, May 11, 2017 at 09:33:32PM +0000, Mastorakis, Spyridon wrote:
> Hi guys,
> 
> When I compile the DPDK libraries as shared (by modifying the base_config file) and try to run an application (e.g., l3fwd), I get an error that port 0 is not present on board.
> 
> I have cleaned the system several times (unbinded NICs, removed igb_uio and uio modules and hugepage mappings) and have configured everything again, but this does not resolve the issue. I am also not able to add a virtual device (specifically a virtual ring) when I compile as a shared library (no PMD drivers found).
> 
> When I compile the DPDK libraries as static though, everything works perfectly fine and I can run the DPDK applications and add virtual rings.
> 
> I have tried dpdk-17.02 and the latest stable dpdk version (16.11.1), but none of them seems to work.
> 
> Do you have any clue why this is happening?
> 
> Thank you in advance,
> Spyros

When compiled as a shared lib, are you passing in the "-d" parameters to
make sure that the PMDs are actually loaded by the app. Unlike the
static version, they are not automatically linked in the shared lib
build.

/Bruce

Re: [dpdk-dev] "Port 0 is not present on the board" when building DPDK libraries as shared

[Mastorakis, Spyridon]

Hi Bruce,

Thank you for your response.

This seems to have resolved the issue.

Spyros

-----Original Message-----
From: Richardson, Bruce 
Sent: Friday, May 12, 2017 1:41 AM
To: Mastorakis, Spyridon <spyridon.mastorakis@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] "Port 0 is not present on the board" when building DPDK libraries as shared

On Thu, May 11, 2017 at 09:33:32PM +0000, Mastorakis, Spyridon wrote:
> Hi guys,
> 
> When I compile the DPDK libraries as shared (by modifying the base_config file) and try to run an application (e.g., l3fwd), I get an error that port 0 is not present on board.
> 
> I have cleaned the system several times (unbinded NICs, removed igb_uio and uio modules and hugepage mappings) and have configured everything again, but this does not resolve the issue. I am also not able to add a virtual device (specifically a virtual ring) when I compile as a shared library (no PMD drivers found).
> 
> When I compile the DPDK libraries as static though, everything works perfectly fine and I can run the DPDK applications and add virtual rings.
> 
> I have tried dpdk-17.02 and the latest stable dpdk version (16.11.1), but none of them seems to work.
> 
> Do you have any clue why this is happening?
> 
> Thank you in advance,
> Spyros

When compiled as a shared lib, are you passing in the "-d" parameters to make sure that the PMDs are actually loaded by the app. Unlike the static version, they are not automatically linked in the shared lib build.

/Bruce