From 007f790c8276271de26416f90d55561bcc96588a Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Fri, 28 Nov 2014 14:34:17 +0100 Subject: net: introduce generic switch devices support The goal of this is to provide a possibility to support various switch chips. Drivers should implement relevant ndos to do so. Now there is only one ndo defined: - for getting physical switch id is in place. Note that user can use random port netdevice to access the switch. Signed-off-by: Jiri Pirko Reviewed-by: Thomas Graf Acked-by: Andy Gospodarek Signed-off-by: David S. Miller --- net/Kconfig | 1 + net/Makefile | 3 +++ net/switchdev/Kconfig | 13 +++++++++++++ net/switchdev/Makefile | 5 +++++ net/switchdev/switchdev.c | 33 +++++++++++++++++++++++++++++++++ 5 files changed, 55 insertions(+) create mode 100644 net/switchdev/Kconfig create mode 100644 net/switchdev/Makefile create mode 100644 net/switchdev/switchdev.c (limited to 'net') diff --git a/net/Kconfig b/net/Kconfig index 99815b5454bf..ff9ffc17fa0e 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -228,6 +228,7 @@ source "net/vmw_vsock/Kconfig" source "net/netlink/Kconfig" source "net/mpls/Kconfig" source "net/hsr/Kconfig" +source "net/switchdev/Kconfig" config RPS boolean diff --git a/net/Makefile b/net/Makefile index 7ed1970074b0..95fc694e4ddc 100644 --- a/net/Makefile +++ b/net/Makefile @@ -73,3 +73,6 @@ obj-$(CONFIG_OPENVSWITCH) += openvswitch/ obj-$(CONFIG_VSOCKETS) += vmw_vsock/ obj-$(CONFIG_NET_MPLS_GSO) += mpls/ obj-$(CONFIG_HSR) += hsr/ +ifneq ($(CONFIG_NET_SWITCHDEV),) +obj-y += switchdev/ +endif diff --git a/net/switchdev/Kconfig b/net/switchdev/Kconfig new file mode 100644 index 000000000000..155754588fd6 --- /dev/null +++ b/net/switchdev/Kconfig @@ -0,0 +1,13 @@ +# +# Configuration for Switch device support +# + +config NET_SWITCHDEV + boolean "Switch (and switch-ish) device support (EXPERIMENTAL)" + depends on INET + ---help--- + This module provides glue between core networking code and device + drivers in order to support hardware switch chips in very generic + meaning of the word "switch". This include devices supporting L2/L3 but + also various flow offloading chips, including switches embedded into + SR-IOV NICs. diff --git a/net/switchdev/Makefile b/net/switchdev/Makefile new file mode 100644 index 000000000000..5ed63ed324d0 --- /dev/null +++ b/net/switchdev/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the Switch device API +# + +obj-$(CONFIG_NET_SWITCHDEV) += switchdev.o diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c new file mode 100644 index 000000000000..66973deaae56 --- /dev/null +++ b/net/switchdev/switchdev.c @@ -0,0 +1,33 @@ +/* + * net/switchdev/switchdev.c - Switch device API + * Copyright (c) 2014 Jiri Pirko + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include + +/** + * netdev_switch_parent_id_get - Get ID of a switch + * @dev: port device + * @psid: switch ID + * + * Get ID of a switch this port is part of. + */ +int netdev_switch_parent_id_get(struct net_device *dev, + struct netdev_phys_item_id *psid) +{ + const struct net_device_ops *ops = dev->netdev_ops; + + if (!ops->ndo_switch_parent_id_get) + return -EOPNOTSUPP; + return ops->ndo_switch_parent_id_get(dev, psid); +} +EXPORT_SYMBOL(netdev_switch_parent_id_get); -- cgit