Merge branch 'mlxsw-bridge-vlan-offloading'

Ido Schimmel says:

====================
This patchset introduces support for the offloading of 802.1D bridges
between VLAN devices. These can either be VLAN devices configured on top
of the physical ports or on top of LAG devices.

Patches 1-2 deal with the necessary infrastructure changes needed in order
to enable the above. The main change is that switchdev drivers can now know
the device from which the switchdev op originated from.

Patches 3-10 lay the groundwork for 802.1D bridges support in the mlxsw
driver, with patch 4 doing most of the heavy lifting.

Patch 11 finally offloads these bridges to hardware by listening to the
notifications sent when the VLAN device joins or leaves a bridge. It is
very similar to the already existing 802.1Q bridge we support.

Patches 12-14 add minor modifications to allow one to bridge a VLAN device
configured on top of LAG.
====================

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

8 files changed, 27 insertions, 0 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index fded86508117..9f4bd137e045 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -30,6 +30,7 @@
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <net/arp.h>
+#include <net/switchdev.h>
 
 #include "vlan.h"
 #include "vlanproc.h"
@@ -774,6 +775,12 @@ static const struct net_device_ops vlan_netdev_ops = {
 	.ndo_netpoll_cleanup	= vlan_dev_netpoll_cleanup,
 #endif
 	.ndo_fix_features	= vlan_dev_fix_features,
+	.ndo_fdb_add		= switchdev_port_fdb_add,
+	.ndo_fdb_del		= switchdev_port_fdb_del,
+	.ndo_fdb_dump		= switchdev_port_fdb_dump,
+	.ndo_bridge_setlink	= switchdev_port_bridge_setlink,
+	.ndo_bridge_getlink	= switchdev_port_bridge_getlink,
+	.ndo_bridge_dellink	= switchdev_port_bridge_dellink,
 	.ndo_get_lock_subclass  = vlan_dev_get_lock_subclass,
 	.ndo_get_iflink		= vlan_dev_get_iflink,
 };
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index a642bb829d09..82e3e9705017 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -135,6 +135,7 @@ static void fdb_del_external_learn(struct net_bridge_fdb_entry *f)
 {
 	struct switchdev_obj_port_fdb fdb = {
 		.obj = {
+			.orig_dev = f->dst->dev,
 			.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 			.flags = SWITCHDEV_F_DEFER,
 		},
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 5f3f64553179..b3cca126b103 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -40,6 +40,7 @@ void br_log_state(const struct net_bridge_port *p)
 void br_set_state(struct net_bridge_port *p, unsigned int state)
 {
 	struct switchdev_attr attr = {
+		.orig_dev = p->dev,
 		.id = SWITCHDEV_ATTR_ID_PORT_STP_STATE,
 		.flags = SWITCHDEV_F_DEFER,
 		.u.stp_state = state,
@@ -570,6 +571,7 @@ int br_set_max_age(struct net_bridge *br, unsigned long val)
 int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
 {
 	struct switchdev_attr attr = {
+		.orig_dev = br->dev,
 		.id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
 		.flags = SWITCHDEV_F_SKIP_EOPNOTSUPP,
 		.u.ageing_time = ageing_time,
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 5396ff08af32..775e00fbeb1e 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -37,6 +37,7 @@ static inline port_id br_make_port_id(__u8 priority, __u16 port_no)
 void br_init_port(struct net_bridge_port *p)
 {
 	struct switchdev_attr attr = {
+		.orig_dev = p->dev,
 		.id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
 		.flags = SWITCHDEV_F_SKIP_EOPNOTSUPP | SWITCHDEV_F_DEFER,
 		.u.ageing_time = p->br->ageing_time,
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 1394da63614a..66c4549efbbb 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -73,6 +73,7 @@ static int __vlan_vid_add(struct net_device *dev, struct net_bridge *br,
 			  u16 vid, u16 flags)
 {
 	struct switchdev_obj_port_vlan v = {
+		.obj.orig_dev = dev,
 		.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
 		.flags = flags,
 		.vid_begin = vid,
@@ -120,6 +121,7 @@ static int __vlan_vid_del(struct net_device *dev, struct net_bridge *br,
 			  u16 vid)
 {
 	struct switchdev_obj_port_vlan v = {
+		.obj.orig_dev = dev,
 		.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
 		.vid_begin = vid,
 		.vid_end = vid,
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index f88a62ab019d..bca8c350e7f3 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -471,6 +471,7 @@ static ssize_t phys_switch_id_show(struct device *dev,
 
 	if (dev_isalive(netdev)) {
 		struct switchdev_attr attr = {
+			.orig_dev = netdev,
 			.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 			.flags = SWITCHDEV_F_NO_RECURSE,
 		};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 34ba7a08876d..d8b0113d3eec 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1027,6 +1027,7 @@ static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
 {
 	int err;
 	struct switchdev_attr attr = {
+		.orig_dev = dev,
 		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 		.flags = SWITCHDEV_F_NO_RECURSE,
 	};
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index f34e535e93bd..df790d3385a2 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -723,6 +723,7 @@ static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
 				    u32 filter_mask)
 {
 	struct switchdev_vlan_dump dump = {
+		.vlan.obj.orig_dev = dev,
 		.vlan.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
 		.skb = skb,
 		.filter_mask = filter_mask,
@@ -757,6 +758,7 @@ int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 				  int nlflags)
 {
 	struct switchdev_attr attr = {
+		.orig_dev = dev,
 		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 	};
 	u16 mode = BRIDGE_MODE_UNDEF;
@@ -778,6 +780,7 @@ static int switchdev_port_br_setflag(struct net_device *dev,
 				     unsigned long brport_flag)
 {
 	struct switchdev_attr attr = {
+		.orig_dev = dev,
 		.id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
 	};
 	u8 flag = nla_get_u8(nlattr);
@@ -853,6 +856,7 @@ static int switchdev_port_br_afspec(struct net_device *dev,
 	struct nlattr *attr;
 	struct bridge_vlan_info *vinfo;
 	struct switchdev_obj_port_vlan vlan = {
+		.obj.orig_dev = dev,
 		.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
 	};
 	int rem;
@@ -975,6 +979,7 @@ int switchdev_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 			   u16 vid, u16 nlm_flags)
 {
 	struct switchdev_obj_port_fdb fdb = {
+		.obj.orig_dev = dev,
 		.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.vid = vid,
 	};
@@ -1000,6 +1005,7 @@ int switchdev_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 			   u16 vid)
 {
 	struct switchdev_obj_port_fdb fdb = {
+		.obj.orig_dev = dev,
 		.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.vid = vid,
 	};
@@ -1077,6 +1083,7 @@ int switchdev_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
 			    struct net_device *filter_dev, int idx)
 {
 	struct switchdev_fdb_dump dump = {
+		.fdb.obj.orig_dev = dev,
 		.fdb.obj.id = SWITCHDEV_OBJ_ID_PORT_FDB,
 		.dev = dev,
 		.skb = skb,
@@ -1135,6 +1142,7 @@ static struct net_device *switchdev_get_dev_by_nhs(struct fib_info *fi)
 		if (!dev)
 			return NULL;
 
+		attr.orig_dev = dev;
 		if (switchdev_port_attr_get(dev, &attr))
 			return NULL;
 
@@ -1194,6 +1202,7 @@ int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi,
 	if (!dev)
 		return 0;
 
+	ipv4_fib.obj.orig_dev = dev;
 	err = switchdev_port_obj_add(dev, &ipv4_fib.obj);
 	if (!err)
 		fi->fib_flags |= RTNH_F_OFFLOAD;
@@ -1238,6 +1247,7 @@ int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi,
 	if (!dev)
 		return 0;
 
+	ipv4_fib.obj.orig_dev = dev;
 	err = switchdev_port_obj_del(dev, &ipv4_fib.obj);
 	if (!err)
 		fi->fib_flags &= ~RTNH_F_OFFLOAD;
@@ -1270,10 +1280,12 @@ static bool switchdev_port_same_parent_id(struct net_device *a,
 					  struct net_device *b)
 {
 	struct switchdev_attr a_attr = {
+		.orig_dev = a,
 		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 		.flags = SWITCHDEV_F_NO_RECURSE,
 	};
 	struct switchdev_attr b_attr = {
+		.orig_dev = b,
 		.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
 		.flags = SWITCHDEV_F_NO_RECURSE,
 	};