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Date: Tue, 8 Sep 2015 16:47:53 -0400
From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To: netdev@...r.kernel.org
Cc: Jiri Pirko <jiri@...nulli.us>, Scott Feldman <sfeldma@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>, kernel@...oirfairelinux.com,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [RFC PATCH net-next 1/3] net: switchdev: extract switchdev_obj_vlan
Move the switchdev_obj_vlan structure out of the switchdev_obj union.
This lightens the switchdev_obj structure and allows drivers to access
the object transaction and callback directly from a switchdev_obj_vlan.
This is more consistent and convenient for add and dump operations.
The patch updates bridge, the Rocker driver and DSA accordingly.
Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
drivers/net/ethernet/rocker/rocker.c | 21 +++++++++--------
include/net/switchdev.h | 13 +++++++----
net/bridge/br_vlan.c | 26 +++++++++------------
net/dsa/slave.c | 27 ++++++++++++----------
net/switchdev/switchdev.c | 44 ++++++++++++++++++------------------
5 files changed, 68 insertions(+), 63 deletions(-)
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index 34ac41a..e72d49a 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4394,14 +4394,13 @@ static int rocker_port_vlan_add(struct rocker_port *rocker_port,
}
static int rocker_port_vlans_add(struct rocker_port *rocker_port,
- enum switchdev_trans trans,
const struct switchdev_obj_vlan *vlan)
{
u16 vid;
int err;
for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
- err = rocker_port_vlan_add(rocker_port, trans,
+ err = rocker_port_vlan_add(rocker_port, vlan->obj.trans,
vid, vlan->flags);
if (err)
return err;
@@ -4427,6 +4426,7 @@ static int rocker_port_obj_add(struct net_device *dev,
struct switchdev_obj *obj)
{
struct rocker_port *rocker_port = netdev_priv(dev);
+ const struct switchdev_obj_vlan *vlan;
const struct switchdev_obj_ipv4_fib *fib4;
int err = 0;
@@ -4443,8 +4443,8 @@ static int rocker_port_obj_add(struct net_device *dev,
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_VLAN:
- err = rocker_port_vlans_add(rocker_port, obj->trans,
- &obj->u.vlan);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = rocker_port_vlans_add(rocker_port, vlan);
break;
case SWITCHDEV_OBJ_IPV4_FIB:
fib4 = &obj->u.ipv4_fib;
@@ -4509,12 +4509,14 @@ static int rocker_port_obj_del(struct net_device *dev,
struct switchdev_obj *obj)
{
struct rocker_port *rocker_port = netdev_priv(dev);
+ const struct switchdev_obj_vlan *vlan;
const struct switchdev_obj_ipv4_fib *fib4;
int err = 0;
switch (obj->id) {
case SWITCHDEV_OBJ_PORT_VLAN:
- err = rocker_port_vlans_del(rocker_port, &obj->u.vlan);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = rocker_port_vlans_del(rocker_port, vlan);
break;
case SWITCHDEV_OBJ_IPV4_FIB:
fib4 = &obj->u.ipv4_fib;
@@ -4563,9 +4565,8 @@ static int rocker_port_fdb_dump(const struct rocker_port *rocker_port,
}
static int rocker_port_vlan_dump(const struct rocker_port *rocker_port,
- struct switchdev_obj *obj)
+ struct switchdev_obj_vlan *vlan)
{
- struct switchdev_obj_vlan *vlan = &obj->u.vlan;
u16 vid;
int err = 0;
@@ -4576,7 +4577,7 @@ static int rocker_port_vlan_dump(const struct rocker_port *rocker_port,
if (rocker_vlan_id_is_internal(htons(vid)))
vlan->flags |= BRIDGE_VLAN_INFO_PVID;
vlan->vid_begin = vlan->vid_end = vid;
- err = obj->cb(rocker_port->dev, obj);
+ err = vlan->obj.cb(rocker_port->dev, &vlan->obj);
if (err)
break;
}
@@ -4588,6 +4589,7 @@ static int rocker_port_obj_dump(struct net_device *dev,
struct switchdev_obj *obj)
{
const struct rocker_port *rocker_port = netdev_priv(dev);
+ struct switchdev_obj_vlan *vlan;
int err = 0;
switch (obj->id) {
@@ -4595,7 +4597,8 @@ static int rocker_port_obj_dump(struct net_device *dev,
err = rocker_port_fdb_dump(rocker_port, obj);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
- err = rocker_port_vlan_dump(rocker_port, obj);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = rocker_port_vlan_dump(rocker_port, vlan);
break;
default:
err = -EOPNOTSUPP;
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 319baab..55fa106 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -55,11 +55,6 @@ struct switchdev_obj {
enum switchdev_trans trans;
int (*cb)(struct net_device *dev, struct switchdev_obj *obj);
union {
- struct switchdev_obj_vlan { /* PORT_VLAN */
- u16 flags;
- u16 vid_begin;
- u16 vid_end;
- } vlan;
struct switchdev_obj_ipv4_fib { /* IPV4_FIB */
u32 dst;
int dst_len;
@@ -77,6 +72,14 @@ struct switchdev_obj {
} u;
};
+/* SWITCHDEV_OBJ_PORT_VLAN */
+struct switchdev_obj_vlan {
+ struct switchdev_obj obj; /* must be first */
+ u16 flags;
+ u16 vid_begin;
+ u16 vid_end;
+};
+
/**
* struct switchdev_ops - switchdev operations
*
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 5f5a02b..44e8bc1 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -50,16 +50,14 @@ static int __vlan_vid_add(struct net_device *dev, struct net_bridge *br,
if (ops->ndo_vlan_rx_add_vid) {
err = vlan_vid_add(dev, br->vlan_proto, vid);
} else {
- struct switchdev_obj vlan_obj = {
- .id = SWITCHDEV_OBJ_PORT_VLAN,
- .u.vlan = {
- .flags = flags,
- .vid_begin = vid,
- .vid_end = vid,
- },
+ struct switchdev_obj_vlan vlan = {
+ .obj.id = SWITCHDEV_OBJ_PORT_VLAN,
+ .flags = flags,
+ .vid_begin = vid,
+ .vid_end = vid,
};
- err = switchdev_port_obj_add(dev, &vlan_obj);
+ err = switchdev_port_obj_add(dev, &vlan.obj);
if (err == -EOPNOTSUPP)
err = 0;
}
@@ -130,15 +128,13 @@ static int __vlan_vid_del(struct net_device *dev, struct net_bridge *br,
if (ops->ndo_vlan_rx_kill_vid) {
vlan_vid_del(dev, br->vlan_proto, vid);
} else {
- struct switchdev_obj vlan_obj = {
- .id = SWITCHDEV_OBJ_PORT_VLAN,
- .u.vlan = {
- .vid_begin = vid,
- .vid_end = vid,
- },
+ struct switchdev_obj_vlan vlan = {
+ .obj.id = SWITCHDEV_OBJ_PORT_VLAN,
+ .vid_begin = vid,
+ .vid_end = vid,
};
- err = switchdev_port_obj_del(dev, &vlan_obj);
+ err = switchdev_port_obj_del(dev, &vlan.obj);
if (err == -EOPNOTSUPP)
err = 0;
}
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index cce9738..654afc8 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -242,15 +242,14 @@ static int dsa_bridge_check_vlan_range(struct dsa_switch *ds,
}
static int dsa_slave_port_vlan_add(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_vlan *vlan)
{
- struct switchdev_obj_vlan *vlan = &obj->u.vlan;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
u16 vid;
int err;
- switch (obj->trans) {
+ switch (vlan->obj.trans) {
case SWITCHDEV_TRANS_PREPARE:
if (!ds->drv->port_vlan_add || !ds->drv->port_pvid_set)
return -EOPNOTSUPP;
@@ -283,9 +282,8 @@ static int dsa_slave_port_vlan_add(struct net_device *dev,
}
static int dsa_slave_port_vlan_del(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_vlan *vlan)
{
- struct switchdev_obj_vlan *vlan = &obj->u.vlan;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
u16 vid;
@@ -304,9 +302,8 @@ static int dsa_slave_port_vlan_del(struct net_device *dev,
}
static int dsa_slave_port_vlan_dump(struct net_device *dev,
- struct switchdev_obj *obj)
+ struct switchdev_obj_vlan *vlan)
{
- struct switchdev_obj_vlan *vlan = &obj->u.vlan;
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
DECLARE_BITMAP(members, DSA_MAX_PORTS);
@@ -329,7 +326,7 @@ static int dsa_slave_port_vlan_dump(struct net_device *dev,
if (!test_bit(p->port, members))
continue;
- memset(vlan, 0, sizeof(*vlan));
+ vlan->flags = 0;
vlan->vid_begin = vlan->vid_end = vid;
if (vid == pvid)
@@ -338,7 +335,7 @@ static int dsa_slave_port_vlan_dump(struct net_device *dev,
if (test_bit(p->port, untagged))
vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
- err = obj->cb(dev, obj);
+ err = vlan->obj.cb(dev, &vlan->obj);
if (err)
break;
}
@@ -476,6 +473,7 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
static int dsa_slave_port_obj_add(struct net_device *dev,
struct switchdev_obj *obj)
{
+ struct switchdev_obj_vlan *vlan;
int err;
/* For the prepare phase, ensure the full set of changes is feasable in
@@ -488,7 +486,8 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
err = dsa_slave_port_fdb_add(dev, obj);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
- err = dsa_slave_port_vlan_add(dev, obj);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = dsa_slave_port_vlan_add(dev, vlan);
break;
default:
err = -EOPNOTSUPP;
@@ -501,6 +500,7 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
static int dsa_slave_port_obj_del(struct net_device *dev,
struct switchdev_obj *obj)
{
+ struct switchdev_obj_vlan *vlan;
int err;
switch (obj->id) {
@@ -508,7 +508,8 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
err = dsa_slave_port_fdb_del(dev, obj);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
- err = dsa_slave_port_vlan_del(dev, obj);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = dsa_slave_port_vlan_del(dev, vlan);
break;
default:
err = -EOPNOTSUPP;
@@ -521,6 +522,7 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
static int dsa_slave_port_obj_dump(struct net_device *dev,
struct switchdev_obj *obj)
{
+ struct switchdev_obj_vlan *vlan;
int err;
switch (obj->id) {
@@ -528,7 +530,8 @@ static int dsa_slave_port_obj_dump(struct net_device *dev,
err = dsa_slave_port_fdb_dump(dev, obj);
break;
case SWITCHDEV_OBJ_PORT_VLAN:
- err = dsa_slave_port_vlan_dump(dev, obj);
+ vlan = (struct switchdev_obj_vlan *) obj;
+ err = dsa_slave_port_vlan_dump(dev, vlan);
break;
default:
err = -EOPNOTSUPP;
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 16c1c43..9923a97 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -397,7 +397,7 @@ int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
struct switchdev_vlan_dump {
- struct switchdev_obj obj;
+ struct switchdev_obj_vlan vlan; /* must be first */
struct sk_buff *skb;
u32 filter_mask;
u16 flags;
@@ -439,9 +439,8 @@ static int switchdev_port_vlan_dump_put(struct net_device *dev,
static int switchdev_port_vlan_dump_cb(struct net_device *dev,
struct switchdev_obj *obj)
{
- struct switchdev_vlan_dump *dump =
- container_of(obj, struct switchdev_vlan_dump, obj);
- struct switchdev_obj_vlan *vlan = &dump->obj.u.vlan;
+ struct switchdev_vlan_dump *dump = (struct switchdev_vlan_dump *) obj;
+ struct switchdev_obj_vlan *vlan = (struct switchdev_obj_vlan *) obj;
int err = 0;
if (vlan->vid_begin > vlan->vid_end)
@@ -493,7 +492,7 @@ static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
u32 filter_mask)
{
struct switchdev_vlan_dump dump = {
- .obj = {
+ .vlan.obj = {
.id = SWITCHDEV_OBJ_PORT_VLAN,
.cb = switchdev_port_vlan_dump_cb,
},
@@ -504,7 +503,7 @@ static int switchdev_port_vlan_fill(struct sk_buff *skb, struct net_device *dev,
if ((filter_mask & RTEXT_FILTER_BRVLAN) ||
(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)) {
- err = switchdev_port_obj_dump(dev, &dump.obj);
+ err = switchdev_port_obj_dump(dev, &dump.vlan.obj);
if (err)
goto err_out;
if (filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED)
@@ -621,10 +620,9 @@ static int switchdev_port_br_afspec(struct net_device *dev,
{
struct nlattr *attr;
struct bridge_vlan_info *vinfo;
- struct switchdev_obj obj = {
- .id = SWITCHDEV_OBJ_PORT_VLAN,
+ struct switchdev_obj_vlan vlan = {
+ .obj.id = SWITCHDEV_OBJ_PORT_VLAN,
};
- struct switchdev_obj_vlan *vlan = &obj.u.vlan;
int rem;
int err;
@@ -634,30 +632,32 @@ static int switchdev_port_br_afspec(struct net_device *dev,
if (nla_len(attr) != sizeof(struct bridge_vlan_info))
return -EINVAL;
vinfo = nla_data(attr);
- vlan->flags = vinfo->flags;
+ vlan.flags = vinfo->flags;
if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) {
- if (vlan->vid_begin)
+ if (vlan.vid_begin)
return -EINVAL;
- vlan->vid_begin = vinfo->vid;
+ vlan.vid_begin = vinfo->vid;
} else if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END) {
- if (!vlan->vid_begin)
+ if (!vlan.vid_begin)
return -EINVAL;
- vlan->vid_end = vinfo->vid;
- if (vlan->vid_end <= vlan->vid_begin)
+ vlan.vid_end = vinfo->vid;
+ if (vlan.vid_end <= vlan.vid_begin)
return -EINVAL;
- err = f(dev, &obj);
+ err = f(dev, &vlan.obj);
if (err)
return err;
- memset(vlan, 0, sizeof(*vlan));
+ vlan.flags = 0;
+ vlan.vid_begin = vlan.vid_end = 0;
} else {
- if (vlan->vid_begin)
+ if (vlan.vid_begin)
return -EINVAL;
- vlan->vid_begin = vinfo->vid;
- vlan->vid_end = vinfo->vid;
- err = f(dev, &obj);
+ vlan.vid_begin = vinfo->vid;
+ vlan.vid_end = vinfo->vid;
+ err = f(dev, &vlan.obj);
if (err)
return err;
- memset(vlan, 0, sizeof(*vlan));
+ vlan.flags = 0;
+ vlan.vid_begin = vlan.vid_end = 0;
}
}
--
2.5.1
--
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