netdev - [RFC net-next 01/13] switchdev: Add SWITCHDEV_PORT_ATTR_SET, SWITCHDEV_PORT_ATTR

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Message-Id: <20190201220657.30170-2-f.fainelli@gmail.com>
Date:   Fri,  1 Feb 2019 14:06:45 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Michael Chan <michael.chan@...adcom.com>,
        "David S. Miller" <davem@...emloft.net>,
        Derek Chickles <dchickles@...vell.com>,
        Satanand Burla <sburla@...vell.com>,
        Felix Manlunas <fmanlunas@...vell.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>,
        Jiri Pirko <jiri@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Ioana Radulescu <ruxandra.radulescu@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ivan Vecera <ivecera@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Dirk van der Merwe <dirk.vandermerwe@...ronome.com>,
        "Francois H. Theron" <francois.theron@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>,
        Quentin Monnet <quentin.monnet@...ronome.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Eric Dumazet <edumazet@...gle.com>,
        John Hurley <john.hurley@...ronome.com>,
        Edwin Peer <edwin.peer@...ronome.com>,
        linux-kernel@...r.kernel.org (open list),
        linux-rdma@...r.kernel.org (open list:MELLANOX MLX5 core VPI driver),
        oss-drivers@...ronome.com (open list:NETRONOME ETHERNET DRIVERS),
        devel@...verdev.osuosl.org (open list:STAGING SUBSYSTEM)
Subject: [RFC net-next 01/13] switchdev: Add SWITCHDEV_PORT_ATTR_SET, SWITCHDEV_PORT_ATTR_GET

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>
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 63843ae5dc81..e62fb2693e00 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -145,6 +145,9 @@ 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. */
 };
 
 struct switchdev_notifier_info {
@@ -167,6 +170,13 @@ 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