Commit 36c11123 authored by Amit Cohen's avatar Amit Cohen Committed by David S. Miller
Browse files

vxlan: vxlan_core: Support FDB flushing by nexthop ID 



Add support for flush VXLAN FDB entries by nexthop ID.

Signed-off-by: default avatarAmit Cohen <amcohen@nvidia.com>
Reviewed-by: default avatarPetr Machata <petrm@nvidia.com>
Reviewed-by: default avatarIdo Schimmel <idosch@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a0f89d5e

drivers/net/vxlan/vxlan_core.c

+15 −0
Original line number Diff line number Diff line
@@ -3029,6 +3029,7 @@ struct vxlan_fdb_flush_desc { 
	unsigned long                   flags;

	unsigned long			flags_mask;

	__be32				src_vni;

	u32				nhid;

};



static bool vxlan_fdb_is_default_entry(const struct vxlan_fdb *f,
@@ -3037,6 +3038,13 @@ static bool vxlan_fdb_is_default_entry(const struct vxlan_fdb *f, 
	return is_zero_ether_addr(f->eth_addr) && f->vni == vxlan->cfg.vni;

}



static bool vxlan_fdb_nhid_matches(const struct vxlan_fdb *f, u32 nhid)

{

	struct nexthop *nh = rtnl_dereference(f->nh);



	return nh && nh->id == nhid;

}



static bool vxlan_fdb_flush_matches(const struct vxlan_fdb *f,

				    const struct vxlan_dev *vxlan,

				    const struct vxlan_fdb_flush_desc *desc)
@@ -3053,6 +3061,9 @@ static bool vxlan_fdb_flush_matches(const struct vxlan_fdb *f, 
	if (desc->src_vni && f->vni != desc->src_vni)

		return false;



	if (desc->nhid && !vxlan_fdb_nhid_matches(f, desc->nhid))

		return false;



	return true;

}
@@ -3081,6 +3092,7 @@ static void vxlan_flush(struct vxlan_dev *vxlan, 


static const struct nla_policy vxlan_del_bulk_policy[NDA_MAX + 1] = {

	[NDA_SRC_VNI]   = { .type = NLA_U32 },

	[NDA_NH_ID]	= { .type = NLA_U32 },

	[NDA_NDM_STATE_MASK]	= { .type = NLA_U16 },

	[NDA_NDM_FLAGS_MASK]	= { .type = NLA_U8 },

};
@@ -3128,6 +3140,9 @@ static int vxlan_fdb_delete_bulk(struct nlmsghdr *nlh, struct net_device *dev, 
	if (tb[NDA_SRC_VNI])

		desc.src_vni = cpu_to_be32(nla_get_u32(tb[NDA_SRC_VNI]));



	if (tb[NDA_NH_ID])

		desc.nhid = nla_get_u32(tb[NDA_NH_ID]);



	vxlan_flush(vxlan, &desc);



	return 0;