[dpdk-dev] flow director on X550

[Lu, Wenzhuo]

Hi Nishant,

From: Nishant Verma [mailto:vnish11 at gmail.com]
Sent: Thursday, May 26, 2016 11:40 AM
To: Lu, Wenzhuo
Cc: dev at dpdk.org
Subject: Re: [dpdk-dev] flow director on X550

Hi Wenzhuo,
Thanks for the reply.

​As par datasheet, if flow director filter matches then RSS won't impact as RSS is the last filter to be applied on received packet.

But just to confirm, i tried and still issue persist. Any other thing that you think i can try, please let me know.
[Wenzhuo] After checking the code, according to our implementation you cannot mask all the L4 ports if you want to direct the L4 packets. With all the ports masked, flow director only handles the raw IP packets. It means UDP/TCP/SCTP packets will not be handled.  There’s a workaround. You can change the dest port mask to 0x01 (or src port if you like). And add 2 filters, one for dest IP 66.66.66.66 + dest port 0, the other for dest IP 66.66.66.66 + dest port 1.
Thanks.

On Wed, May 25, 2016 at 8:52 PM, Lu, Wenzhuo <wenzhuo.lu at intel.com<mailto:wenzhuo.lu at intel.com>> wrote:
Hi Nishant,

> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org<mailto:dev-bounces at dpdk.org>] On Behalf Of Nishant Verma
> Sent: Thursday, May 26, 2016 4:08 AM
> To: dev at dpdk.org<mailto:dev at dpdk.org>
> Subject: [dpdk-dev] flow director on X550
>
> Hi All,
>
> My system configuration is
> ==>#. SuperMicro 1U
>    - BIOS: 1.0a
>    - Processor: Intel(R) Xeon(R) CPU D-1540 @ 2.00GHz
>    - Onboard NIC: Intel(R) X552/X557-AT (2x10G)
>      - Firmware-version: 0x800001cf
>      - Device ID (PF/VF): 8086:15ad /8086:15a8
>    - kernel driver version: 4.2.5 (ixgbe)
>
> I am working on DPDK 16.04 & pktgen 3.0.0 version.
>
>
> My intention is to test flow director based on just destination IP. It means, i will
> use test-pmd and configure flow director and fdir mask, from pktgen i will send
> packet and check if packets are going to right queue or not.
>
> Here is the procedure, that i follow.
>
> 1. I run testpmd
> * ./testpmd -c 0xffff -n 4 -- -i  --portmask=0x3 --nb-cores=5 --disable-link-check
> --rxq=5 --txq=5  --pkt-filter-mode=perfect*
We need add the parameter *--disable-rss* to avoid the impact of RSS.



--
Rgds,
Nishant