linux-kernel - Re: [PATCH net-next v4 2/9] switchdev: Add SWITCHDEV_PORT_ATTR_SET, SWITCHDEV_PORT_ATTR

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Date:   Tue, 12 Feb 2019 13:55:54 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     Florian Fainelli <f.fainelli@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:STAGING SUBSYSTEM" <devel@...verdev.osuosl.org>,
        "moderated list:ETHERNET BRIDGE" <bridge@...ts.linux-foundation.org>,
        Jiri Pirko <jiri@...lanox.com>,
        "andrew@...n.ch" <andrew@...n.ch>,
        "vivien.didelot@...il.com" <vivien.didelot@...il.com>
Subject: Re: [PATCH net-next v4 2/9] switchdev: Add SWITCHDEV_PORT_ATTR_SET,
 SWITCHDEV_PORT_ATTR_GET

On Mon, Feb 11, 2019 at 11:09:54AM -0800, Florian Fainelli wrote:
> In preparation for allowing switchdev enabled drivers to veto specific
> attribute settings from within the context of the caller, introduce a
> new switchdev notifier type for port attributes.
> 
> Suggested-by: Ido Schimmel <idosch@...lanox.com>
> Acked-by: Jiri Pirko <jiri@...lanox.com>
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  include/net/switchdev.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/include/net/switchdev.h b/include/net/switchdev.h
> index 5e87b54c5dc5..b8becabbef38 100644
> --- a/include/net/switchdev.h
> +++ b/include/net/switchdev.h
> @@ -143,6 +143,9 @@ enum switchdev_notifier_type {
>  	SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE,
>  	SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE,
>  	SWITCHDEV_VXLAN_FDB_OFFLOADED,
> +
> +	SWITCHDEV_PORT_ATTR_SET, /* Blocking. */
> +	SWITCHDEV_PORT_ATTR_GET, /* Blocking. */

As I wrote in the cover letter, I don't believe GET is needed.

>  };
>  
>  struct switchdev_notifier_info {
> @@ -165,6 +168,13 @@ struct switchdev_notifier_port_obj_info {
>  	bool handled;
>  };
>  
> +struct switchdev_notifier_port_attr_info {
> +	struct switchdev_notifier_info info; /* must be first */
> +	struct switchdev_attr *attr;
> +	struct switchdev_trans *trans;
> +	bool handled;
> +};
> +
>  static inline struct net_device *
>  switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info)
>  {
> -- 
> 2.17.1
>