Re: [PATCH net-next v2] devlink: Implement devlink param multi attribute nested data values

[Ratheesh Kannoth <rkannoth@marvell.com>]

On 2026-01-27 at 06:48:59, Jakub Kicinski (kuba@kernel.org) wrote:
> On Mon, 26 Jan 2026 08:09:44 +0530 Ratheesh Kannoth wrote:
> > Devlink param value attribute is not defined since devlink is handling
> > the value validating and parsing internally, this allows us to implement
> > multi attribute values without breaking any policies.
> >
> > Devlink param multi-attribute values are considered to be dynamically
> > sized arrays of u32 values, by introducing a new devlink param type
> > DEVLINK_PARAM_TYPE_U32_ARRAY, driver and user space can set a variable
> > count of u32 values into the DEVLINK_ATTR_PARAM_VALUE_DATA attribute.
> >
> > Implement get/set parsing and add to the internal value structure passed
> > to drivers.
> >
> > This is useful for devices that need to configure a list of values for
> > a specific configuration.
>
> Could you respin this as a series with the first driver implementing
> a param of this type?  We can't merge an API without a user.
ACK. will make it part of https://patchwork.kernel.org/project/netdevbpf/list/?series=1047093 as
APIs needed by devlink are in this patch.
> --
> pw-bot: cr