svn commit: r185242 - head/sys/dev/ath

[Sam Leffler]

Author: sam
Date: Mon Nov 24 01:31:10 2008
New Revision: 185242
URL: http://svn.freebsd.org/changeset/base/185242

Log:
  nuke special handling of RXORN interrupt; the hal marks the FATAL
  bit in the interrupt status when RXORN is hit and the chip requires
  a reset so our special handling was causing useless resets

Modified:
  head/sys/dev/ath/if_ath.c
  head/sys/dev/ath/if_athvar.h

Modified: head/sys/dev/ath/if_ath.c
==============================================================================
--- head/sys/dev/ath/if_ath.c	Mon Nov 24 01:26:22 2008	(r185241)
+++ head/sys/dev/ath/if_ath.c	Mon Nov 24 01:31:10 2008	(r185242)
@@ -131,7 +131,6 @@ static int	ath_media_change(struct ifnet
 static void	ath_watchdog(struct ifnet *);
 static int	ath_ioctl(struct ifnet *, u_long, caddr_t);
 static void	ath_fatal_proc(void *, int);
-static void	ath_rxorn_proc(void *, int);
 static void	ath_bmiss_vap(struct ieee80211vap *);
 static void	ath_bmiss_proc(void *, int);
 static int	ath_keyset(struct ath_softc *, const struct ieee80211_key *,
@@ -409,7 +408,6 @@ ath_attach(u_int16_t devid, struct ath_s
 		"%s taskq", ifp->if_xname);
 
 	TASK_INIT(&sc->sc_rxtask, 0, ath_rx_proc, sc);
-	TASK_INIT(&sc->sc_rxorntask, 0, ath_rxorn_proc, sc);
 	TASK_INIT(&sc->sc_bmisstask, 0, ath_bmiss_proc, sc);
 	TASK_INIT(&sc->sc_bstucktask,0, ath_bstuck_proc, sc);
 
@@ -1184,10 +1182,6 @@ ath_intr(void *arg)
 		sc->sc_stats.ast_hardware++;
 		ath_hal_intrset(ah, 0);		/* disable intr's until reset */
 		ath_fatal_proc(sc, 0);
-	} else if (status & HAL_INT_RXORN) {
-		sc->sc_stats.ast_rxorn++;
-		ath_hal_intrset(ah, 0);		/* disable intr's until reset */
-		taskqueue_enqueue(sc->sc_tq, &sc->sc_rxorntask);
 	} else {
 		if (status & HAL_INT_SWBA) {
 			/*
@@ -1234,6 +1228,10 @@ ath_intr(void *arg)
 			ath_hal_mibevent(ah, &sc->sc_halstats);
 			ath_hal_intrset(ah, sc->sc_imask);
 		}
+		if (status & HAL_INT_RXORN) {
+			/* NB: hal marks HAL_INT_FATAL when RXORN is fatal */
+			sc->sc_stats.ast_rxorn++;
+		}
 	}
 }
 
@@ -1263,16 +1261,6 @@ ath_fatal_proc(void *arg, int pending)
 }
 
 static void
-ath_rxorn_proc(void *arg, int pending)
-{
-	struct ath_softc *sc = arg;
-	struct ifnet *ifp = sc->sc_ifp;
-
-	if_printf(ifp, "rx FIFO overrun; resetting\n");
-	ath_reset(ifp);
-}
-
-static void
 ath_bmiss_vap(struct ieee80211vap *vap)
 {
 	struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;

Modified: head/sys/dev/ath/if_athvar.h
==============================================================================
--- head/sys/dev/ath/if_athvar.h	Mon Nov 24 01:26:22 2008	(r185241)
+++ head/sys/dev/ath/if_athvar.h	Mon Nov 24 01:31:10 2008	(r185242)
@@ -302,7 +302,6 @@ struct ath_softc {
 	struct mbuf		*sc_rxpending;	/* pending receive data */
 	u_int32_t		*sc_rxlink;	/* link ptr in last RX desc */
 	struct task		sc_rxtask;	/* rx int processing */
-	struct task		sc_rxorntask;	/* rxorn int processing */
 	u_int8_t		sc_defant;	/* current default antenna */
 	u_int8_t		sc_rxotherant;	/* rx's on non-default antenna*/
 	u_int64_t		sc_lastrx;	/* tsf at last rx'd frame */