[dpdk-dev] Is Flow Director supported on the x540 chipset?

Mauro Annarumma mauroannarumma at hotmail.it
Thu Feb 13 10:44:40 CET 2014

I'm trying to use Flow Director. Initially I used a X540 chipset and I was not able to make it work; I thought it was a compatibility problem with the controller. Maxime suggested to change some lines in the ixgbe_fdir.c file, I changed these lines but it
      did not give the expected results; 
   At this point I was sure that the problem was the incompatibility between the DPDK and the X540 chipset therefore I retrived a NIC whit a 82599 chipset and I repeated my attempts, unfortunately I got the some problems.
In order to be more clear I explain my attempts:
I try  to run the test-pmd app with the command-line option
      "--pkt-filter-mode=perfect", the app doesn't start (the rte_eth_dev_start
      function return an error) otherwise without the --pkt-filter-mode command-line option the application run

This is the command line I use to start the program:

frog at frog:~/dpdk-1.5.2r1/app/test-pmd$
 sudo ./testpmd -c 0x0f -n 2 -m 512 -- -i --portmask=0x3 --nb-cores=2 
--pkt-filter-mode=perfect --rxq=2 --txq=2

and the relative output:

Interactive-mode selected
Configuring Port 0 (socket -1)
Fail to start port 0 (ret=-5)*
Configuring Port 1 (socket -1)
Fail to start port 1 (ret=-5)*
Please stop the ports first

*ret=-5 is the result of the rte_eth_dev_start function

I guess someone was able to use FDIR, at least in the testpmd application. What am I doing wrong?
Best regards

> From: thomas.monjalon at 6wind.com
> To: fulvio.risso at polito.it
> Date: Thu, 6 Feb 2014 17:47:21 +0100
> CC: dev at dpdk.org
> Subject: Re: [dpdk-dev] Is Flow Director supported on the x540 chipset?
> Hi Fulvio,
> 17/01/2014 12:24, Maxime Leroy:
> > On Thu, Jan 16, 2014, Fulvio Risso <fulvio.risso at polito.it> wrote:
> > > by digging into the DPDK code it seems to me that FDIR is not supported
> > > on the x540 chipset, while it is supported on 82599.
> [...]
> > > Is there any plan to support FDIR to the x540 chipset?
> > 
> [...]
> > I think you only need to change few lines in
> > lib/librte_pmd_ixgbe/ixgbe_fdir.c:
> > 
> >   - if (hw->mac.type != ixgbe_mac_82599EB)
> >   + if (hw->mac.type != ixgbe_mac_82599EB || hw->mac.type !=
> > ixgbe_mac_X540)
> > 
> > Let me know if you can test it and please provide a patch if it works.
> Have you tried to patch and test flow director for X540 ?
> thanks
> -- 
> Thomas

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