doc: update softnic documentation

  Update traffic management function parameters description and
command for running the softnic device using testpmd app.

Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
---
 doc/guides/nics/softnic.rst | 60 +++++++++++++++++++++++++++----------
 1 file changed, 44 insertions(+), 16 deletions(-)
  

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Jasvinder Singh
> Sent: Monday, June 22, 2020 4:47 PM
> To: dev@dpdk.org
> Cc: Dumitrescu, Cristian <cristian.dumitrescu@intel.com>
> Subject: [dpdk-dev] [PATCH] doc: update softnic documentation
> 
> Update traffic management function parameters description and command
> for running the softnic device using testpmd app.
> 
> Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
> Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> ---
>  doc/guides/nics/softnic.rst | 60 +++++++++++++++++++++++++++----------
>  1 file changed, 44 insertions(+), 16 deletions(-)
> 
> diff --git a/doc/guides/nics/softnic.rst b/doc/guides/nics/softnic.rst index
> c8962d90b..8f0dd53ea 100644
> --- a/doc/guides/nics/softnic.rst
> +++ b/doc/guides/nics/softnic.rst
> @@ -82,29 +82,56 @@ Soft NIC device instance:
>  #.  ``tm_n_queues``: number of traffic manager's scheduler queues. The
> traffic manager
>      is based on DPDK *librte_sched* library. (Optional: yes, Default value:
> 65,536 queues)
> 
> -#.  ``tm_qsize0``: size of scheduler queue 0 per traffic class of the
> pipes/subscribers.
> +#.  ``tm_qsize0``: size of scheduler queue 0 (traffic class 0) of the
> pipes/subscribers.
>      (Optional: yes, Default: 64)
> 
> -#.  ``tm_qsize1``: size of scheduler queue 1 per traffic class of the
> pipes/subscribers.
> +#.  ``tm_qsize1``: size of scheduler queue 1 (traffic class 1) of the
> pipes/subscribers.
>      (Optional: yes, Default: 64)
> 
> -#.  ``tm_qsize2``: size of scheduler queue 2 per traffic class of the
> pipes/subscribers.
> +#.  ``tm_qsize2``: size of scheduler queue 2 (traffic class 2) of the
> pipes/subscribers.
>      (Optional: yes, Default: 64)
> 
> -#.  ``tm_qsize3``: size of scheduler queue 3 per traffic class of the
> pipes/subscribers.
> +#.  ``tm_qsize3``: size of scheduler queue 3 (traffic class 3) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize4``: size of scheduler queue 4 (traffic class 4) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize5``: size of scheduler queue 5 (traffic class 5) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize6``: size of scheduler queue 6 (traffic class 6) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize7``: size of scheduler queue 7 (traffic class 7) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize8``: size of scheduler queue 8 (traffic class 8) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize9``: size of scheduler queue 9 (traffic class 9) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize10``: size of scheduler queue 10 (traffic class 10) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize11``: size of scheduler queue 11 (traffic class 11) of the
> pipes/subscribers.
> +    (Optional: yes, Default: 64)
> +
> +#.  ``tm_qsize12``: size of scheduler queue 12 (traffic class 12) of the
> pipes/subscribers.
>      (Optional: yes, Default: 64)
> 
> 
>  Soft NIC testing
>  ----------------
> 
> -* Run testpmd application in Soft NIC forwarding mode with loopback
> feature
> +* Run testpmd application with Soft NIC device with loopback feature
>    enabled on Soft NIC port:
> 
>      .. code-block:: console
> 
> -         ./testpmd -c 0x3 --vdev 'net_softnic0,firmware=<script
> path>/firmware.cli,cpu_id=0,conn_port=8086' -- -i
> -              --forward-mode=softnic --portmask=0x2
> +         ./testpmd -c 0x7 -s 0x4 --vdev 'net_softnic0,firmware=<script
> path>/firmware.cli,cpu_id=0,conn_port=8086' -- -i
> +              --portmask=0x2
> 
>      .. code-block:: console
> 
> @@ -133,8 +160,8 @@ Soft NIC testing
>          pipeline TX table match stub
>          pipeline TX port in 0 table 0
> 
> -        thread 1 pipeline RX enable
> -        thread 1 pipeline TX enable
> +        thread 2 pipeline RX enable
> +        thread 2 pipeline TX enable
>          Port 1: 00:00:00:00:00:00
>          Checking link statuses...
>          Done
> @@ -172,7 +199,8 @@ Soft NIC testing
>           TX threshold registers: pthresh=0 hthresh=0  wthresh=0
>           TX offloads=0x0 - TX RS bit threshold=0
> 
> -* Start remote client (e.g. telnet) to communicate with the softnic device:
> +* Softnic device can be configured using remote client (e.g. telnet).
> +However,
> +  testpmd application doesn't support configuration through telnet :
> 
>      .. code-block:: console
> 
> @@ -246,8 +274,8 @@ command description provided in
> `softnic/rte_eth_softnic_cli.c`.
> 
>      .. code-block:: console
> 
> -        thread 1 pipeline RX enable        (Soft NIC rx pipeline enable on cpu
> thread id 1)
> -        thread 1 pipeline TX enable        (Soft NIC tx pipeline enable on cpu
> thread id 1)
> +        thread 2 pipeline RX enable        (Soft NIC rx pipeline enable on cpu
> thread id 2)
> +        thread 2 pipeline TX enable        (Soft NIC tx pipeline enable on cpu
> thread id 2)
> 
>  QoS API Support:
>  ----------------
> @@ -340,19 +368,19 @@ commands.
>              1.10.11.12 2.20.21.22 100 200 6 action fwd port 0
>          pipeline TX table 0 rule add match hash ipv4_5tuple
>              1.10.11.13 2.20.21.23 100 200 6 action fwd port 1
> -        thread 25 pipeline RX enable
> -        thread 25 pipeline TX enable
> +        thread 2 pipeline RX enable
> +        thread 2 pipeline TX enable
> 
>  * Run testpmd:
> 
>      .. code-block:: console
> 
> -        ./x86_64-native-linux-gcc/app/testpmd -l 23-25  -n 4 \
> +        ./x86_64-native-linux-gcc/app/testpmd -c 0x7 -s 0x4 -n 4 \
>                                      --vdev 'net_softnic0, \
>                                      firmware=./drivers/net/softnic/ \
>                                          firmware.cli, \
>                                      cpu_id=1,conn_port=8086' -- \
> -                                    -i --forward-mode=softnic --rxq=2, \
> +                                    -i --rxq=2, \
>                                      --txq=2, --disable-rss --portmask=0x4
> 
>  * Configure flow rules on softnic:
> --

I will merge this patch with another one on removing softnic forwarding mode from testpmd.