Re: Any ideas how to stop DPDK from banning me from the box.

[Marco Chiappero <marco-YK5v5TwyeXionA0d6jMUrA@public.gmane.org>]

Il 18/07/2013 17:42, Dmitry Vyal ha scritto:
> Greetings!

Hi

> [...]
> I connect to the server using ssh through one of gigabit ports.

I do the very same thing and I have no such problem.

> The
> problem is that no matter which cards I blacklist with -b option then
> starting my dpdk application it takes away all the interfaces from the
> kernel and later returns blacklisted ones. This disrupts my ssh session
> and I can no longer connect to the server.

Maybe you are using wrong IDs, verify that.

Here a working example:


pino:~/dpdk-1.2.3r4 ~> lspci | grep -i ethernet
02:00.0 Ethernet controller: Mellanox Technologies MT26448 [ConnectX EN 
10GigE, PCIe 2.0 5GT/s] (rev b0)
03:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit 
SFI/SFP+ Network Connection (rev 01)
03:00.1 Ethernet controller: Intel Corporation 82599EB 10-Gigabit 
SFI/SFP+ Network Connection (rev 01)
04:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit 
SFI/SFP+ Network Connection (rev 01)
04:00.1 Ethernet controller: Intel Corporation 82599EB 10-Gigabit 
SFI/SFP+ Network Connection (rev 01)
05:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network 
Connection (rev 01)
05:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network 
Connection (rev 01)


pino:~/dpdk-1.2.3r4 ~> sudo build/app/testpmd -c 0xf -n 3 -r 1 -b 
0000:05:00.0 -b 0000:05:00.1
EAL: coremask set to f
...
Initializing port 0... done:  Link Down
Initializing port 1... done:  Link Down
Initializing port 2... done:  Link Up - speed 10000 Mbps - full-duplex
Initializing port 3... done:  Link Up - speed 10000 Mbps - full-duplex
No commandline core given, start packet forwarding
   io packet forwarding - CRC stripping disabled - packets/burst=16
   nb forwarding cores=1 - nb forwarding ports=4
   RX queues=1 - RX desc=128 - RX free threshold=0
   RX threshold registers: pthresh=8 hthresh=8 wthresh=4
   TX queues=1 - TX desc=512 - TX free threshold=0
   TX threshold registers: pthresh=36 hthresh=0 wthresh=0
   TX RS bit threshold=0
Press enter to exit

[ssh is still up]


Regards,
Marco