[dpdk-dev] [PATCH v5 8/9] ethdev: add capability of sub-function representor

[Andrew Rybchenko]

On 1/19/21 10:15 AM, Xueming Li wrote:
> Old DPDK version or some drivers didn't support SubFunction representor.
> For application to adapt different DPDK version automatically, or to be
> used for different NICs, this patch introduces new eth device capability
> of supporting SubFunction representor device.

Sorry, it does not sound sufficient motivation to introduce the
capability. I simply need real life example why application
need to know it.

> Signed-off-by: Xueming Li <xuemingl at nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
> Acked-by: Thomas Monjalon <thomas at monjalon.net>
> ---
>  lib/librte_ethdev/rte_ethdev.h | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
> index 2cbce958cf..da65adf1ab 100644
> --- a/lib/librte_ethdev/rte_ethdev.h
> +++ b/lib/librte_ethdev/rte_ethdev.h
> @@ -1433,6 +1433,8 @@ struct rte_eth_conf {
>  #define RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP 0x00000001
>  /** Device supports Tx queue setup after device started. */
>  #define RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP 0x00000002
> +/** Device supports SubFunction representor. */
> +#define RTE_ETH_DEV_CAPA_REPRESENTOR_SF         0x00000004

Will we have a PMD which supports it in the release cycle?

>  /**@}*/
>  
>  /*