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

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

[FQ Liu]

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

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

[Nishant Verma]

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@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

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

[Muhammad Zain-ul-Abideen]

Doesn't 82599 has like 128 RX queues

On 17 Aug 2016 12:38 p.m., "FQ Liu" <qleex001@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@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@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
> >
> >
> >
> >

Re: [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@gmail.com> wrote:

> Doesn't 82599 has like 128 RX queues
>
> On 17 Aug 2016 12:38 p.m., "FQ Liu" <qleex001@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@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@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

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

[Muhammad Zain-ul-Abideen]

But the flow director queues wont matter as the hash against the tuple will
be the same