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authorYuval Mintz <yuvalm@mellanox.com>2018-03-01 00:29:34 +0300
committerDavid S. Miller <davem@davemloft.net>2018-03-01 21:13:23 +0300
commit494fff56379c4ad5b8fe36a5b7ffede4044ca7bb (patch)
tree700668965ff3ae706986235f91bb8c5267017617 /include/linux/mroute_base.h
parent0bbbf0e7d0e7ea8267836986346a9b3a35b74e4e (diff)
downloadlinux-494fff56379c4ad5b8fe36a5b7ffede4044ca7bb.tar.xz
ipmr, ip6mr: Make mfc_cache a common structure
mfc_cache and mfc6_cache are almost identical - the main difference is in the origin/group addresses and comparison-key. Make a common structure encapsulating most of the multicast routing logic - mr_mfc and convert both ipmr and ip6mr into using it. For easy conversion [casting, in this case] mr_mfc has to be the first field inside every multicast routing abstraction utilizing it. Signed-off-by: Yuval Mintz <yuvalm@mellanox.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mroute_base.h')
-rw-r--r--include/linux/mroute_base.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/include/linux/mroute_base.h b/include/linux/mroute_base.h
index 805305722803..2769e2f98b32 100644
--- a/include/linux/mroute_base.h
+++ b/include/linux/mroute_base.h
@@ -45,6 +45,51 @@ struct vif_device {
#define VIF_EXISTS(_mrt, _idx) (!!((_mrt)->vif_table[_idx].dev))
/**
+ * struct mr_mfc - common multicast routing entries
+ * @mnode: rhashtable list
+ * @mfc_parent: source interface (iif)
+ * @mfc_flags: entry flags
+ * @expires: unresolved entry expire time
+ * @unresolved: unresolved cached skbs
+ * @last_assert: time of last assert
+ * @minvif: minimum VIF id
+ * @maxvif: maximum VIF id
+ * @bytes: bytes that have passed for this entry
+ * @pkt: packets that have passed for this entry
+ * @wrong_if: number of wrong source interface hits
+ * @lastuse: time of last use of the group (traffic or update)
+ * @ttls: OIF TTL threshold array
+ * @refcount: reference count for this entry
+ * @list: global entry list
+ * @rcu: used for entry destruction
+ */
+struct mr_mfc {
+ struct rhlist_head mnode;
+ unsigned short mfc_parent;
+ int mfc_flags;
+
+ union {
+ struct {
+ unsigned long expires;
+ struct sk_buff_head unresolved;
+ } unres;
+ struct {
+ unsigned long last_assert;
+ int minvif;
+ int maxvif;
+ unsigned long bytes;
+ unsigned long pkt;
+ unsigned long wrong_if;
+ unsigned long lastuse;
+ unsigned char ttls[MAXVIFS];
+ refcount_t refcount;
+ } res;
+ } mfc_un;
+ struct list_head list;
+ struct rcu_head rcu;
+};
+
+/**
* struct mr_table - a multicast routing table
* @list: entry within a list of multicast routing tables
* @net: net where this table belongs