mac80211: mesh: separate plid and aid concepts
According to 802.11-2012 13.3.1, a mesh STA should assign an AID
upon receipt of a mesh peering open frame rather than using the link
id of the peer. Using the peer link id has two potential issues:
it may not be unique among the peers, and by its nature it is random,
so the TIM may not compress well.
In preparation for allocating it properly, use sta->sta.aid, but keep
the existing behavior of using the plid in the aid we send.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 6dcb334..1d2805c 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -277,6 +277,7 @@
* @plink_lock: serialize access to plink fields
* @llid: Local link ID
* @plid: Peer link ID
+ * @aid: local aid supplied by peer
* @reason: Cancel reason on PLINK_HOLDING state
* @plink_retries: Retries in establishment
* @plink_state: peer link state
@@ -301,6 +302,7 @@
spinlock_t plink_lock;
u16 llid;
u16 plid;
+ u16 aid;
u16 reason;
u8 plink_retries;