[dpdk-users] How to use more rx queues than RSS queue limit for ixgbe

[dave seddon]

Data sheet
 Multiple receive queues (Flow Director) 16 x 8 and 32 x 4
 Eight VLAN L2 filters
 16 flex L3 port filters
 Four Flexible TCO filters
 Four L3 address filters (IPv4)
 Four L3 address filters (IPv6)
 Four L2 address filters
http://www.intel.com/content/www/us/en/embedded/products/
networking/82599-10-gbe-controller-datasheet.html

On Wed, Aug 17, 2016 at 7:40 AM, Muhammad Zain-ul-Abideen <
zain2294 at gmail.com> wrote:

> Doesn't 82599 has like 128 RX queues
>
> On 17 Aug 2016 12:38 p.m., "FQ Liu" <qleex001 at gmail.com> wrote:
> >
> > Hi
> >
> > In production environment, all the packets have the same dst_ip, dst_port
> > and protocol, I cannot use vlan tag to identity in DCB mode.
> > If use Flow Director, one filter rule would direct to only one core,
> > Maybe I must modify the driver source code to meet the demand?
> >
> > 2016-08-16 21:35 GMT+08:00 Nishant Verma <vnish11 at gmail.com>:
> >
> > > Hi,
> > >
> > > Yes, you can use flow director and other packet classification methods
> > > present, the thing is your hardware supports that. Check NIC datasheet
> if
> > > some thing you think is correct and still not working.
> > > For DCB, you can check example(vmdq_dcb) present in example folder in
> DPDK.
> > > For Flow Director, you can check test-pmd code.
> > >
> > > Just for your information. flow director can be used like this
> > > "
> > >     struct rte_eth_fdir_filter entry;
> > >
> > >     memset(&entry, 0, sizeof(struct rte_eth_fdir_filter));
> > >
> > >     entry.input.flow_type = 0x05;
> > >     entry.input.flow.udp4_flow.ip.dst_ip=0x11223344;
> > >     entry.input.flow.udp4_flow.dst_port=0x1111;
> > >     entry.action.rx_queue=0x02;
> > >     entry.action.report_status=0x02;
> > >
> > >     ret = rte_eth_dev_filter_ctrl(0, RTE_ETH_FILTER_FDIR,
> > >                          RTE_ETH_FILTER_ADD, &entry);
> > >
> > > "
> > > So, from now packet received from 0x11223344 will be re-directed to
> queue
> > > 2.
> > >
> > >
> > > On Tue, Aug 16, 2016 at 6:25 AM, FQ Liu <qleex001 at gmail.com> wrote:
> > >
> > >> Hi all
> > >>       I want to use 32 cores to process dns requests, which would need
> 32
> > >> rx queues, but the maximum RSS queue of the ethernet controller(Intel
> > >> Corporation 82599ES 10-Gigabit SFI/SFP+) is 16. If I can use dcb or
> flow
> > >> director to assign requests to 32 cores?
> > >>        The document (http://dpdk.org/doc/guides/nics/overview.html)
> shows
> > >> that ixgbe driver supports DCB and Flow director, but there isn't any
> > >> details about.
> > >>
> > >>
> > >>        OS: centos
> > >>        kernel: linux-3.18.34
> > >>        driver: igb_uio
> > >>
> > >
> > >
> > >
> > > --
> > > Rgds,
> > > Nishant
> > >
> > >
> > >
> > >
>



-- 
Regards,
Dave Seddon
+1 415 857 5102