> -----Original Message-----
> From: Rakesh Kudurumalla <rkudurumalla@marvell.com>
> Sent: Friday, December 15, 2023 2:46 PM
> To: Sunil Kumar Kori <skori@marvell.com>; Rakesh Kudurumalla
> <rkudurumalla@marvell.com>
> Cc: dev@dpdk.org; Jerin Jacob Kollanukkaran <jerinj@marvell.com>; Nithin
> Kumar Dabilpuram <ndabilpuram@marvell.com>
> Subject: [PATCH v5 3/3] app/graph: implement port forward usecase
> 
> Added portforward usecase.In this usecase packets received Rx port is
> forwarded to respective Tx port.
> 
> Signed-off-by: Rakesh Kudurumalla <rkudurumalla@marvell.com>
> ---
>  app/graph/ethdev.c                           |  13 ++
>  app/graph/ethdev.h                           |   1 +
>  app/graph/examples/l2fwd.cli                 |  41 +++++
>  app/graph/examples/l2fwd_pcap.cli            |  37 +++++
>  app/graph/graph.c                            |   8 +-
>  app/graph/l2fwd.c                            | 152 +++++++++++++++++++
>  app/graph/l2fwd.h                            |  11 ++
>  app/graph/meson.build                        |   1 +
>  app/graph/module_api.h                       |   1 +
>  doc/guides/tools/graph.rst                   |  27 ++++
>  doc/guides/tools/img/graph-usecase-l2fwd.svg |  92 +++++++++++
>  11 files changed, 383 insertions(+), 1 deletion(-)  create mode 100644
> app/graph/examples/l2fwd.cli  create mode 100644
> app/graph/examples/l2fwd_pcap.cli  create mode 100644
> app/graph/l2fwd.c  create mode 100644 app/graph/l2fwd.h  create mode
> 100644 doc/guides/tools/img/graph-usecase-l2fwd.svg
> 
> diff --git a/app/graph/ethdev.c b/app/graph/ethdev.c index
> bb502a6134..9a89bd3e1d 100644
> --- a/app/graph/ethdev.c
> +++ b/app/graph/ethdev.c
> @@ -76,6 +76,19 @@ ethdev_port_by_id(uint16_t port_id)
>  	return NULL;
>  }
> 
> +int16_t
> +find_txport_by_rxport(uint16_t portid_rx) {
> +	int portid = -EINVAL;
> +	struct ethdev *port;
> +
> +	port = ethdev_port_by_id(portid_rx);
> +	if (port)
> +		portid = port->tx_port_id;
> +
> +	return portid;
> +}
> +
>  void *
>  ethdev_mempool_list_by_portid(uint16_t portid)  { diff --git
> a/app/graph/ethdev.h b/app/graph/ethdev.h index
> 836052046b..946e14d801 100644
> --- a/app/graph/ethdev.h
> +++ b/app/graph/ethdev.h
> @@ -33,6 +33,7 @@ extern uint32_t enabled_port_mask;
> 
>  void ethdev_start(void);
>  void ethdev_stop(void);
> +int16_t find_txport_by_rxport(uint16_t portid_rx);
This function is exposed to other modules in application. Please align this name with other function's name. 


>  void *ethdev_mempool_list_by_portid(uint16_t portid);  int16_t
> ethdev_portid_by_ip4(uint32_t ip, uint32_t mask);  int16_t
> ethdev_portid_by_ip6(uint8_t *ip, uint8_t *mask); diff --git
> 
> @@ -110,6 +124,12 @@ For current use case, following routing table is
> used:
>  On the successful execution of ``l3fwd.cli`` or ``l3fwd_pcap.cli``,  user
> needs to send traffic with mentioned DIP.
> 
> +``l2fwd.cli`` and ``l2fwd_pcap.cli`` creates setup with two network
> ports.
> +Packet received on one port is forwarded to other port.
> +
> +On the successful execution of ``l2fwd.cli`` or ``l2fwd_pcap.cli``,
> +user needs to send traffic on RX port.
> +
This is para is not needed. 

> 2.25.1