[PATCH v3 2/3] net/mlx5: document E-Switch limitations with HWS in mlx5 PMD

[Slava Ovsiienko]

> -----Original Message-----
> From: Dariusz Sosnowski <dsosnowski at nvidia.com>
> Sent: Monday, November 14, 2022 20:20
> To: Matan Azrad <matan at nvidia.com>; Slava Ovsiienko <viacheslavo at nvidia.com>
> Cc: dev at dpdk.org
> Subject: [PATCH v3 2/3] net/mlx5: document E-Switch limitations with HWS in
> mlx5 PMD
> 
> This patch adds the following limitations to the mlx5 PMD guide:
> 
> - With HW Steering and E-Switch enabled, transfer proxy port must
>   be started before any port representor.
> - With HW Steering and E-Switch enabled, all representors
>   must be stopped before transfer proxy port is stopped.
> 
> Documentation of mlx5 PMD's implementations of
> rte_eth_dev_start() and rte_eth_dev_stop() is updated accordingly:
> 
> - rte_eth_dev_start() returns (-EAGAIN) when transfer proxy port
>   cannot be started.
> - rte_eth_dev_stop() returns (-EBUSY) when port representor
>   cannot be stopped.
> 
> Signed-off-by: Dariusz Sosnowski <dsosnowski at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>