From 80d5c3689b886308247da295a228a54df49a44f6 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 19 Apr 2013 02:04:28 +0000 Subject: 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 Signed-off-by: David S. Miller --- net/8021q/vlan_core.c | 47 ++++++++++++++++++++++++++--------------------- 1 file changed, 26 insertions(+), 21 deletions(-) (limited to 'net/8021q/vlan_core.c') 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); -- cgit v1.2.1