RE: [PATCH v4 1/2] ethdev: introduce the PHY affinity field in Tx queue API

["Jiawei(Jonny) Wang" <jiaweiw@nvidia.com>]

Hi,

@Andrew, @Thomas, @Ori, 

Could you lease help to review the patch?

Thanks.

> -----Original Message-----
> From: Jiawei Wang <jiaweiw@nvidia.com>
> Sent: Friday, February 3, 2023 9:34 PM
> To: Slava Ovsiienko <viacheslavo@nvidia.com>; Ori Kam <orika@nvidia.com>;
> NBU-Contact-Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>;
> andrew.rybchenko@oktetlabs.ru; Aman Singh <aman.deep.singh@intel.com>;
> Yuying Zhang <yuying.zhang@intel.com>; Ferruh Yigit <ferruh.yigit@amd.com>
> Cc: dev@dpdk.org; Raslan Darawsheh <rasland@nvidia.com>
> Subject: [PATCH v4 1/2] ethdev: introduce the PHY affinity field in Tx queue
> API
> 
> When multiple physical ports are connected to a single DPDK port,
> (example: kernel bonding, DPDK bonding, failsafe, etc.), we want to know
> which physical port is used for Rx and Tx.
> 
> This patch maps a DPDK Tx queue with a physical port, by adding
> tx_phy_affinity setting in Tx queue.
> The affinity number is the physical port ID where packets will be sent.
> Value 0 means no affinity and traffic could be routed to any connected
> physical ports, this is the default current behavior.
> 
> The number of physical ports is reported with rte_eth_dev_info_get().
> 
> The new tx_phy_affinity field is added into the padding hole of rte_eth_txconf
> structure, the size of rte_eth_txconf keeps the same.
> An ABI check rule needs to be added to avoid false warning.
> 
> Add the testpmd command line:
> testpmd> port config (port_id) txq (queue_id) phy_affinity (value)
> 
> For example, there're two physical ports connected to a single DPDK port
> (port id 0), and phy_affinity 1 stood for the first physical port and phy_affinity
> 2 stood for the second physical port.
> Use the below commands to config tx phy affinity for per Tx Queue:
>         port config 0 txq 0 phy_affinity 1
>         port config 0 txq 1 phy_affinity 1
>         port config 0 txq 2 phy_affinity 2
>         port config 0 txq 3 phy_affinity 2
> 
> These commands config the Tx Queue index 0 and Tx Queue index 1 with phy
> affinity 1, uses Tx Queue 0 or Tx Queue 1 send packets, these packets will be
> sent from the first physical port, and similar with the second physical port if
> sending packets with Tx Queue 2 or Tx Queue 3.
> 
> Signed-off-by: Jiawei Wang <jiaweiw@nvidia.com>
> ---

snip

> 2.18.1