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Date:   Tue, 17 Mar 2020 10:40:46 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org,
        Jiri Pirko <jiri@...lanox.com>,
        Michael Chan <michael.chan@...adcom.com>,
        Jacob Keller <jacob.e.keller@...el.com>
Subject: Re: [PATCH net-next 01/11] devlink: add macro for "drv.spec"

On Tue, 17 Mar 2020 20:44:38 +0530 Vasundhara Volam wrote:
> Add definition and documentation for the new generic info "drv.spec".
> "drv.spec" specifies the version of the software interfaces between
> driver and firmware.
> 
> Cc: Jiri Pirko <jiri@...lanox.com>
> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
> Signed-off-by: Michael Chan <michael.chan@...adcom.com>
> ---
>  Documentation/networking/devlink/devlink-info.rst | 6 ++++++
>  include/net/devlink.h                             | 3 +++
>  2 files changed, 9 insertions(+)
> 
> diff --git a/Documentation/networking/devlink/devlink-info.rst b/Documentation/networking/devlink/devlink-info.rst
> index 70981dd..0765a48 100644
> --- a/Documentation/networking/devlink/devlink-info.rst
> +++ b/Documentation/networking/devlink/devlink-info.rst
> @@ -59,6 +59,12 @@ board.manufacture
>  
>  An identifier of the company or the facility which produced the part.
>  
> +drv.spec
> +--------
> +
> +Firmware interface specification version of the software interfaces between

Why did you call this "drv" if the first sentence of the description
says it's a property of the firmware?

Upcoming Intel patches call this "fw.mgmt.api". Please use that name,
it makes far more sense.

> +driver and firmware. This tag displays spec version implemented by driver.
> +
>  fw
>  --
>  
> diff --git a/include/net/devlink.h b/include/net/devlink.h
> index c9ca86b..9c4d889 100644
> --- a/include/net/devlink.h
> +++ b/include/net/devlink.h
> @@ -476,6 +476,9 @@ enum devlink_param_generic_id {
>  /* Revision of asic design */
>  #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV	"asic.rev"
>  
> +/* FW interface specification version implemented by driver */
> +#define DEVLINK_INFO_VERSION_GENERIC_DRV_SPEC	"drv.spec"
> +
>  /* Overall FW version */
>  #define DEVLINK_INFO_VERSION_GENERIC_FW		"fw"
>  /* Control processor FW version */

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