> -----Original Message-----
> From: Pei, Andy <[email protected]>
> Sent: Wednesday, May 18, 2022 8:14 PM
> To: [email protected]
> Cc: Xia, Chenbo <[email protected]>; [email protected]; Cao,
> Gang <[email protected]>; Liu, Changpeng <[email protected]>; Xu,
> Rosen <[email protected]>; Xiao, QimaiX <[email protected]>
> Subject: [PATCH v8 02/13] vhost: add vDPA ops for blk device
> 
> Get_config and set_config are necessary ops for blk device.
> Add get_config and set_config ops to vDPA ops.
> 
> Signed-off-by: Andy Pei <[email protected]>
> Reviewed-by: Maxime Coquelin <[email protected]>
> ---
>  lib/vhost/vdpa_driver.h | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/vhost/vdpa_driver.h b/lib/vhost/vdpa_driver.h
> index 88138be..e59a834 100644
> --- a/lib/vhost/vdpa_driver.h
> +++ b/lib/vhost/vdpa_driver.h
> @@ -72,8 +72,12 @@ struct rte_vdpa_dev_ops {
>       /** Reset statistics of the queue */
>       int (*reset_stats)(struct rte_vdpa_device *dev, int qid);
> 
> -     /** Reserved for future extension */
> -     void *reserved[2];
> +     /** Get the device configuration space */
> +     int (*get_config)(int vid, uint8_t *config, uint32_t len);

One suggestion is renaming 'len' to 'size' to make it aligned to set_config.

With above fixed:

Reviewed-by: Chenbo Xia <[email protected]>

> +
> +     /** Set the device configuration space */
> +     int (*set_config)(int vid, uint8_t *config, uint32_t offset,
> +                   uint32_t size, uint32_t flags);
>  };
> 
>  /**
> --
> 1.8.3.1

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