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net: 8021q: vlan_core: allow use list of vlans for real device

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It's redundancy for the drivers to hold the list of vlans when
absolutely the same list exists in vlan core. In most cases it's
needed only to traverse the vlan devices, their vids and sync some
settings with h/w, so add API to simplify this.

At least some of these drivers also can benefit:
grep "for_each.*vid" -r drivers/net/ethernet/

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:
drivers/net/ethernet/synopsys/dwc-xlgmac-hw.c:
drivers/net/ethernet/qlogic/qlge/qlge_main.c:
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:
drivers/net/ethernet/via/via-rhine.c:
drivers/net/ethernet/via/via-velocity.c:
drivers/net/ethernet/intel/igb/igb_main.c:
drivers/net/ethernet/intel/ice/ice_main.c:
drivers/net/ethernet/intel/e1000/e1000_main.c:
drivers/net/ethernet/intel/i40e/i40e_main.c:
drivers/net/ethernet/intel/e1000e/netdev.c:
drivers/net/ethernet/intel/igbvf/netdev.c:
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:
drivers/net/ethernet/intel/ixgb/ixgb_main.c:
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:
drivers/net/ethernet/amd/xgbe/xgbe-dev.c:
drivers/net/ethernet/emulex/benet/be_main.c:
drivers/net/ethernet/neterion/vxge/vxge-main.c:
drivers/net/ethernet/adaptec/starfire.c:
drivers/net/ethernet/brocade/bna/bnad.c:

Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ivan Khoronzhuk
2018-11-08 22:27:55 +02:00
committed by David S. Miller
parent e7946760de
commit 960abf68d2
2 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
net/8021q/vlan_core.c
View File

@@ -223,6 +223,33 @@ static int vlan_kill_rx_filter_info(struct net_device *dev, __be16 proto, u16 vi
return -ENODEV;
}
int vlan_for_each(struct net_device *dev,
int (*action)(struct net_device *dev, int vid, void *arg),
void *arg)
{
struct vlan_vid_info *vid_info;
struct vlan_info *vlan_info;
struct net_device *vdev;
int ret;
ASSERT_RTNL();
vlan_info = rtnl_dereference(dev->vlan_info);
if (!vlan_info)
return 0;
list_for_each_entry(vid_info, &vlan_info->vid_list, list) {
vdev = vlan_group_get_device(&vlan_info->grp, vid_info->proto,
vid_info->vid);
ret = action(vdev, vid_info->vid, arg);
if (ret)
return ret;
}
return 0;
}
EXPORT_SYMBOL(vlan_for_each);
int vlan_filter_push_vids(struct vlan_info *vlan_info, __be16 proto)
{
struct net_device *real_dev = vlan_info->real_dev;