netdev - Re: [PATCH net v4] docs: fix info about representor identification

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Date: Thu, 12 Oct 2023 18:32:24 +0100
From: Edward Cree <ecree.xilinx@...il.com>
To: Mateusz Polchlopek <mateusz.polchlopek@...el.com>, netdev@...r.kernel.org
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, jacob.e.keller@...el.com,
 Wojciech Drewek <wojciech.drewek@...el.com>,
 Przemek Kitszel <przemyslaw.kitszel@...el.com>
Subject: Re: [PATCH net v4] docs: fix info about representor identification

On 12/10/2023 13:31, Mateusz Polchlopek wrote:
> Update the "How are representors identified?" documentation
> subchapter. For newer kernels driver should use
> SET_NETDEV_DEVLINK_PORT instead of ndo_get_devlink_port()
> callback.
> 
> ---

These --- lines in the middle of the commit message will cut off
 the tag block for 'git am'.

Other than that,
Reviewed-by: Edward Cree <ecree.xilinx@...il.com>

> v4:
> - changed the docs description
> 
> v3:
> - fixed the lack of hyphen in changelog
> https://lore.kernel.org/netdev/20231010120845.151531-1-mateusz.polchlopek@intel.com/
> 
> v2:
> - targeting -net, without IWL
> https://lore.kernel.org/netdev/20231009111544.143609-1-mateusz.polchlopek@intel.com/
> 
> v1:
> https://lore.kernel.org/netdev/20231006091412.92156-1-mateusz.polchlopek@intel.com/
> ---
> 
> Fixes: 7712b3e966ea ("Merge branch 'net-fix-netdev-to-devlink_port-linkage-and-expose-to-user'")
> Signed-off-by: Mateusz Polchlopek <mateusz.polchlopek@...el.com>
> Reviewed-by: Wojciech Drewek <wojciech.drewek@...el.com>
> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>> ---
>  Documentation/networking/representors.rst | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/networking/representors.rst b/Documentation/networking/representors.rst
> index ee1f5cd54496..decb39c19b9e 100644
> --- a/Documentation/networking/representors.rst
> +++ b/Documentation/networking/representors.rst
> @@ -162,9 +162,11 @@ How are representors identified?
>  The representor netdevice should *not* directly refer to a PCIe device (e.g.
>  through ``net_dev->dev.parent`` / ``SET_NETDEV_DEV()``), either of the
>  representee or of the switchdev function.
> -Instead, it should implement the ``ndo_get_devlink_port()`` netdevice op, which
> -the kernel uses to provide the ``phys_switch_id`` and ``phys_port_name`` sysfs
> -nodes.  (Some legacy drivers implement ``ndo_get_port_parent_id()`` and
> +Instead, the driver should use the ``SET_NETDEV_DEVLINK_PORT`` macro to
> +assign a devlink port instance to the netdevice before registering the
> +netdevice; the kernel uses the devlink port to provide the ``phys_switch_id``
> +and ``phys_port_name`` sysfs nodes.
> +(Some legacy drivers implement ``ndo_get_port_parent_id()`` and
>  ``ndo_get_phys_port_name()`` directly, but this is deprecated.)  See
>  :ref:`Documentation/networking/devlink/devlink-port.rst <devlink_port>` for the
>  details of this API.
>