[RFC net-next 04/13] mlxsw: spectrum_switchdev: Handle SWITCHDEV_PORT_ATTR_GET/SET

From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Michael Chan <michael.chan@broadcom.com>,
	"David S. Miller" <davem@davemloft.net>,
	Derek Chickles <dchickles@marvell.com>,
	Satanand Burla <sburla@marvell.com>,
	Felix Manlunas <fmanlunas@marvell.com>,
	Saeed Mahameed <saeedm@mellanox.com>,
	Leon Romanovsky <leon@kernel.org>, Jiri Pirko <jiri@mellanox.com>,
	Ido Schimmel <idosch@mellanox.com>,
	Alexandre Belloni <alexandre.belloni@bootlin.com>,
	Microchip Linux Driver Support <UNGLinuxDriver@microchip.com>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	Ioana Radulescu <ruxandra.radulescu@nxp.com>,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Ivan Vecera <ivecera@redhat.com>, Andrew Lunn <andrew@lunn.ch>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Dirk van der Merwe <dirk.vandermerwe@netronome.com>,
	"Francois H. Theron" <francois.theron@netronome.com>,
	Simon Horman <simon.horman@netronome.com>,
	Quentin Monnet <quentin.monnet@netronome.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Eric Dumazet <edumazet@google.com>,
	John Hurley <john.hurley@netronome.com>,
	Edwin Peer <edwin.peer@netronome.com>,
	linux-kernel@vger.kernel.org (open list),
	linux-rdma@vger.kernel.org (open list:MELLANOX MLX5 core VPI
	driver),
	oss-drivers@netronome.com (open list:NETRONOME ETHERNET DRIVERS),
	devel@driverdev.osuosl.org (open list:STAGING SUBSYSTEM)
Subject: [RFC net-next 04/13] mlxsw: spectrum_switchdev: Handle SWITCHDEV_PORT_ATTR_GET/SET
Date: Fri,  1 Feb 2019 14:06:48 -0800	[thread overview]
Message-ID: <20190201220657.30170-5-f.fainelli@gmail.com> (raw)
In-Reply-To: <20190201220657.30170-1-f.fainelli@gmail.com>

Following patches will change the way we communicate getting or setting
a port's attribute and use a blocking notifier to perform those tasks.

Prepare mlxsw to support receiving notifier events targeting
SWITCHDEV_PORT_ATTR_GET/SET and simply translate that into the existing
mlxsw_sp_port_attr_{set,get} calls.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 .../mellanox/mlxsw/spectrum_switchdev.c       | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 0f4e68d31cc3..7c0df736587c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -3442,6 +3442,26 @@ mlxsw_sp_switchdev_handle_vxlan_obj_del(struct net_device *vxlan_dev,
 	}
 }
 
+static int
+mlxsw_sp_switchdev_port_attr_event(unsigned long event, struct net_device *dev,
+		struct switchdev_notifier_port_attr_info *port_attr_info)
+{
+	int err = -EOPNOTSUPP;
+
+	switch (event) {
+	case SWITCHDEV_PORT_ATTR_SET:
+		err = mlxsw_sp_port_attr_set(dev, port_attr_info->attr,
+					     port_attr_info->trans);
+		break;
+	case SWITCHDEV_PORT_ATTR_GET:
+		err = mlxsw_sp_port_attr_get(dev, port_attr_info->attr);
+		break;
+	}
+
+	port_attr_info->handled = true;
+	return notifier_from_errno(err);
+}
+
 static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused,
 					     unsigned long event, void *ptr)
 {
@@ -3465,6 +3485,9 @@ static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused,
 							mlxsw_sp_port_dev_check,
 							mlxsw_sp_port_obj_del);
 		return notifier_from_errno(err);
+	case SWITCHDEV_PORT_ATTR_SET:
+	case SWITCHDEV_PORT_ATTR_GET:
+		return mlxsw_sp_switchdev_port_attr_event(event, dev, ptr);
 	}
 
 	return NOTIFY_DONE;
-- 
2.17.1

