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authorPatrick McHardy <kaber@trash.net>2013-04-19 02:04:28 +0000
committerDavid S. Miller <davem@davemloft.net>2013-04-19 14:45:27 -0400
commit80d5c3689b886308247da295a228a54df49a44f6 (patch)
treece7b1e6898c3f9fea945e67fd06b125dfcc61fe7 /net/8021q
parentf646968f8f7c624587de729115d802372b9063dd (diff)
net: vlan: prepare for 802.1ad VLAN filtering offload
Change the rx_{add,kill}_vid callbacks to take a protocol argument in preparation of 802.1ad support. The protocol argument used so far is always htons(ETH_P_8021Q). Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q')
-rw-r--r--net/8021q/vlan.c10
-rw-r--r--net/8021q/vlan_core.c47
2 files changed, 31 insertions, 26 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index d913feed0757..447c5c93434f 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -112,7 +112,7 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
* VLAN is not 0 (leave it there for 802.1p).
*/
if (vlan_id)
- vlan_vid_del(real_dev, vlan_id);
+ vlan_vid_del(real_dev, htons(ETH_P_8021Q), vlan_id);
/* Get rid of the vlan's reference to real_dev */
dev_put(real_dev);
@@ -142,7 +142,7 @@ int register_vlan_dev(struct net_device *dev)
struct vlan_group *grp;
int err;
- err = vlan_vid_add(real_dev, vlan_id);
+ err = vlan_vid_add(real_dev, htons(ETH_P_8021Q), vlan_id);
if (err)
return err;
@@ -195,7 +195,7 @@ out_uninit_gvrp:
if (grp->nr_vlan_devs == 0)
vlan_gvrp_uninit_applicant(real_dev);
out_vid_del:
- vlan_vid_del(real_dev, vlan_id);
+ vlan_vid_del(real_dev, htons(ETH_P_8021Q), vlan_id);
return err;
}
@@ -350,7 +350,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
(dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
pr_info("adding VLAN 0 to HW filter on device %s\n",
dev->name);
- vlan_vid_add(dev, 0);
+ vlan_vid_add(dev, htons(ETH_P_8021Q), 0);
}
vlan_info = rtnl_dereference(dev->vlan_info);
@@ -416,7 +416,7 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
case NETDEV_DOWN:
if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
- vlan_vid_del(dev, 0);
+ vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
/* Put all VLANs for this dev in the down state too. */
for (i = 0; i < VLAN_N_VID; i++) {
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 3df29d344704..04e3b95a0d48 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -185,35 +185,37 @@ static struct vlan_info *vlan_info_alloc(struct net_device *dev)
struct vlan_vid_info {
struct list_head list;
- unsigned short vid;
+ __be16 proto;
+ u16 vid;
int refcount;
};
static struct vlan_vid_info *vlan_vid_info_get(struct vlan_info *vlan_info,
- unsigned short vid)
+ __be16 proto, u16 vid)
{
struct vlan_vid_info *vid_info;
list_for_each_entry(vid_info, &vlan_info->vid_list, list) {
- if (vid_info->vid == vid)
+ if (vid_info->proto == proto && vid_info->vid == vid)
return vid_info;
}
return NULL;
}
-static struct vlan_vid_info *vlan_vid_info_alloc(unsigned short vid)
+static struct vlan_vid_info *vlan_vid_info_alloc(__be16 proto, u16 vid)
{
struct vlan_vid_info *vid_info;
vid_info = kzalloc(sizeof(struct vlan_vid_info), GFP_KERNEL);
if (!vid_info)
return NULL;
+ vid_info->proto = proto;
vid_info->vid = vid;
return vid_info;
}
-static int __vlan_vid_add(struct vlan_info *vlan_info, unsigned short vid,
+static int __vlan_vid_add(struct vlan_info *vlan_info, __be16 proto, u16 vid,
struct vlan_vid_info **pvid_info)
{
struct net_device *dev = vlan_info->real_dev;
@@ -221,12 +223,13 @@ static int __vlan_vid_add(struct vlan_info *vlan_info, unsigned short vid,
struct vlan_vid_info *vid_info;
int err;
- vid_info = vlan_vid_info_alloc(vid);
+ vid_info = vlan_vid_info_alloc(proto, vid);
if (!vid_info)
return -ENOMEM;
- if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
- err = ops->ndo_vlan_rx_add_vid(dev, vid);
+ if (proto == htons(ETH_P_8021Q) &&
+ dev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ err = ops->ndo_vlan_rx_add_vid(dev, proto, vid);
if (err) {
kfree(vid_info);
return err;
@@ -238,7 +241,7 @@ static int __vlan_vid_add(struct vlan_info *vlan_info, unsigned short vid,
return 0;
}
-int vlan_vid_add(struct net_device *dev, unsigned short vid)
+int vlan_vid_add(struct net_device *dev, __be16 proto, u16 vid)
{
struct vlan_info *vlan_info;
struct vlan_vid_info *vid_info;
@@ -254,9 +257,9 @@ int vlan_vid_add(struct net_device *dev, unsigned short vid)
return -ENOMEM;
vlan_info_created = true;
}
- vid_info = vlan_vid_info_get(vlan_info, vid);
+ vid_info = vlan_vid_info_get(vlan_info, proto, vid);
if (!vid_info) {
- err = __vlan_vid_add(vlan_info, vid, &vid_info);
+ err = __vlan_vid_add(vlan_info, proto, vid, &vid_info);
if (err)
goto out_free_vlan_info;
}
@@ -279,14 +282,16 @@ static void __vlan_vid_del(struct vlan_info *vlan_info,
{
struct net_device *dev = vlan_info->real_dev;
const struct net_device_ops *ops = dev->netdev_ops;
- unsigned short vid = vid_info->vid;
+ __be16 proto = vid_info->proto;
+ u16 vid = vid_info->vid;
int err;
- if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
- err = ops->ndo_vlan_rx_kill_vid(dev, vid);
+ if (proto == htons(ETH_P_8021Q) &&
+ dev->features & NETIF_F_HW_VLAN_CTAG_FILTER) {
+ err = ops->ndo_vlan_rx_kill_vid(dev, proto, vid);
if (err) {
- pr_warn("failed to kill vid %d for device %s\n",
- vid, dev->name);
+ pr_warn("failed to kill vid %04x/%d for device %s\n",
+ proto, vid, dev->name);
}
}
list_del(&vid_info->list);
@@ -294,7 +299,7 @@ static void __vlan_vid_del(struct vlan_info *vlan_info,
vlan_info->nr_vids--;
}
-void vlan_vid_del(struct net_device *dev, unsigned short vid)
+void vlan_vid_del(struct net_device *dev, __be16 proto, u16 vid)
{
struct vlan_info *vlan_info;
struct vlan_vid_info *vid_info;
@@ -305,7 +310,7 @@ void vlan_vid_del(struct net_device *dev, unsigned short vid)
if (!vlan_info)
return;
- vid_info = vlan_vid_info_get(vlan_info, vid);
+ vid_info = vlan_vid_info_get(vlan_info, proto, vid);
if (!vid_info)
return;
vid_info->refcount--;
@@ -333,7 +338,7 @@ int vlan_vids_add_by_dev(struct net_device *dev,
return 0;
list_for_each_entry(vid_info, &vlan_info->vid_list, list) {
- err = vlan_vid_add(dev, vid_info->vid);
+ err = vlan_vid_add(dev, vid_info->proto, vid_info->vid);
if (err)
goto unwind;
}
@@ -343,7 +348,7 @@ unwind:
list_for_each_entry_continue_reverse(vid_info,
&vlan_info->vid_list,
list) {
- vlan_vid_del(dev, vid_info->vid);
+ vlan_vid_del(dev, vid_info->proto, vid_info->vid);
}
return err;
@@ -363,7 +368,7 @@ void vlan_vids_del_by_dev(struct net_device *dev,
return;
list_for_each_entry(vid_info, &vlan_info->vid_list, list)
- vlan_vid_del(dev, vid_info->vid);
+ vlan_vid_del(dev, vid_info->proto, vid_info->vid);
}
EXPORT_SYMBOL(vlan_vids_del_by_dev);

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