Re: [dts] [PATCH V1 1/2] test_plans/rxtx_offload: add tx offload multi_segs setting

["Tu, Lijuan" <lijuan.tu@intel.com>]

> -----Original Message-----
> From: dts <dts-bounces@dpdk.org> On Behalf Of Lin, Xueqin
> Sent: 2021年8月2日 17:29
> To: Jiang, YuX <yux.jiang@intel.com>; dts@dpdk.org
> Cc: Jiang, YuX <yux.jiang@intel.com>
> Subject: Re: [dts] [PATCH V1 1/2] test_plans/rxtx_offload: add tx offload
> multi_segs setting
> 
> > -----Original Message-----
> > From: dts <dts-bounces@dpdk.org> On Behalf Of Yu Jiang
> > Sent: Thursday, July 29, 2021 2:16 PM
> > To: dts@dpdk.org
> > Cc: Jiang, YuX <yux.jiang@intel.com>
> > Subject: [dts] [PATCH V1 1/2] test_plans/rxtx_offload: add tx offload
> > multi_segs setting
> >
> > add tx offload multi_segs setting
> >
> > Signed-off-by: Yu Jiang <yux.jiang@intel.com>
> Acked-by: Xueqin Lin <Xueqin.lin@intel.com>
> > ---
> >  test_plans/rxtx_offload_test_plan.rst | 56
> > +++++++++++++++++++++++++++++++++++
> >  1 file changed, 56 insertions(+)
> >
> > diff --git a/test_plans/rxtx_offload_test_plan.rst
> > b/test_plans/rxtx_offload_test_plan.rst
> > index 246e1e1..962ee9f 100644
> > --- a/test_plans/rxtx_offload_test_plan.rst
> > +++ b/test_plans/rxtx_offload_test_plan.rst
> > @@ -677,3 +677,59 @@ Test case: FVL Tx offload per-queue setting
> >
> >     Note 1: there is no tx_offload per_queue parameter in ixgbe driver,
> >     so this case is just only for i40e.
> > +
> > +Test case: Tx offload multi_segs setting
> > +======================================================
> > +
> > +1. Start testpmd with "--tx-offloads=0x00008000" to enable tx_offload
> > multi_segs ::
> > +
> > +    ./testpmd -c 0xf -n 4  -- -i --tx-offloads==0x00008000
> > +    testpmd> show port 0 tx_offload configuration
> > +    Tx Offloading Configuration of port 0 :
> > +      Port : MULTI_SEGS
> > +      Queue[ 0] : MULTI_SEGS
> > +
> > +2. Set fwd to txonly, Set the length of each segment of the TX-ONLY
> > +packets,
> > Set the split policy for TX packets, then start to send pkgs::
> > +
> > +    testpmd> set fwd txonly
> > +    testpmd> set txpkts 64,64

It requires packet size larger than mbuf size, else it won't use multi_segs.

> > +    testpmd> set txsplit rand
> > +    testpmd> start
> > +
> > +3. Check TX-packets will not hang and continue to increase::
> > +    Wait 15s or more, check TX-packets will continue to increase and
> > +can be more than 300K
> > +
> > +    testpmd> show port stats all
> > +    testpmd> stop
> > +    testpmd> quit
> > +
> > +4. Start testpmd again without "--tx-offloads", check multi-segs is
> > +disabled by
> > default::
> > +
> > +    ./testpmd -c 0xf -n 4  -- -i
> > +    testpmd> show port 0 tx_offload configuration
> > +    No MULTI_SEGS in Tx Offloading Configuration of ports
> > +
> > +5. Enable tx_offload multi_segs ::
> > +    testpmd> port stop all
> > +    testpmd> port config 0 tx_offload multi_segs on
> > +    testpmd> port config 1 tx_offload multi_segs on
> > +    testpmd> port start all
> > +    testpmd> show port 0 tx_offload configuration
> > +    Tx Offloading Configuration of port 0 :
> > +      Port : MULTI_SEGS
> > +      Queue[ 0] : MULTI_SEGS
> > +
> > +6. Set fwd to txonly, Set the length of each segment of the TX-ONLY
> > +packets,
> > Set the split policy for TX packets, then start to send pkgs::
> > +
> > +    testpmd> set fwd txonly
> > +    testpmd> set txpkts 64,64
> > +    testpmd> set txsplit rand
> > +    testpmd> start
> > +    testpmd> show port stats all
> > +
> > +7. Check TX-packets will not hang and continue to increase::
> > +    Wait 15s or more, check TX-packets will continue to increase and
> > +can be more than 300K
> > +
> > +    testpmd> show port stats all
> > +    testpmd> stop
> > +    testpmd> quit
> > --
> > 2.7.4