Multi-bss (aka vap) support for 802.11 devices.

Note this includes changes to all drivers and moves some device firmware
loading to use firmware(9) and a separate module (e.g. ral).  Also there
no longer are separate wlan_scan* modules; this functionality is now
bundled into the wlan module.

Supported by:	Hobnob and Marvell
Reviewed by:	many
Obtained from:	Atheros (some bits)

1 files changed, 45 insertions, 8 deletions

diff --git a/sys/net80211/ieee80211_amrr.h b/sys/net80211/ieee80211_amrr.h
index 947d617..c03f699 100644
--- a/sys/net80211/ieee80211_amrr.h
+++ b/sys/net80211/ieee80211_amrr.h
@@ -32,12 +32,12 @@
 /*
  * Rate control settings.
  */
-struct ieee80211com;
+struct ieee80211vap;
 
 struct ieee80211_amrr {
 	u_int	amrr_min_success_threshold;
 	u_int	amrr_max_success_threshold;
-	struct ieee80211com *amrr_ic;
+	int	amrr_interval;		/* update interval (ticks) */
 };
 
 #define IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD	 1
@@ -47,18 +47,55 @@ struct ieee80211_amrr {
  * Rate control state for a given node.
  */
 struct ieee80211_amrr_node {
+	struct ieee80211_amrr *amn_amrr;/* backpointer */
+	int	amn_rix;		/* current rate index */
+	int	amn_ticks;		/* time of last update */
+	/* statistics */
+	u_int	amn_txcnt;
 	u_int	amn_success;
-	u_int	amn_recovery;
 	u_int	amn_success_threshold;
-	u_int	amn_txcnt;
+	u_int	amn_recovery;
 	u_int	amn_retrycnt;
 };
 
-void	ieee80211_amrr_init(struct ieee80211_amrr *,
-	    struct ieee80211com *ic, int, int);
+void	ieee80211_amrr_init(struct ieee80211_amrr *, struct ieee80211vap *,
+	    int, int, int);
+void	ieee80211_amrr_cleanup(struct ieee80211_amrr *);
+void	ieee80211_amrr_setinterval(struct ieee80211_amrr *, int);
 void	ieee80211_amrr_node_init(struct ieee80211_amrr *,
+	    struct ieee80211_amrr_node *, struct ieee80211_node *);
+int	ieee80211_amrr_choose(struct ieee80211_node *,
 	    struct ieee80211_amrr_node *);
-void	ieee80211_amrr_choose(struct ieee80211_amrr *, struct ieee80211_node *,
-	    struct ieee80211_amrr_node *);
 
+#define	IEEE80211_AMRR_SUCCESS	1
+#define	IEEE80211_AMRR_FAILURE	0
+
+/*
+ * Update statistics with tx complete status.  Ok is non-zero
+ * if the packet is known to be ACK'd.  Retries has the number
+ * retransmissions (i.e. xmit attempts - 1).
+ */
+static __inline void
+ieee80211_amrr_tx_complete(struct ieee80211_amrr_node *amn,
+    int ok, int retries)
+{
+	amn->amn_txcnt++;
+	if (ok)
+		amn->amn_success++;
+	amn->amn_retrycnt += retries;
+}
+
+/*
+ * Set tx count/retry statistics explicitly.  Intended for
+ * drivers that poll the device for statistics maintained
+ * in the device.
+ */
+static __inline void
+ieee80211_amrr_tx_update(struct ieee80211_amrr_node *amn,
+    int txcnt, int success, int retrycnt)
+{
+	amn->amn_txcnt = txcnt;
+	amn->amn_success = success;
+	amn->amn_retrycnt = retrycnt;
+}
 #endif /* _NET80211_IEEE80211_AMRR_H_ */