madwifi: patch for 'fixing' stuck beacons through card recalibration
SVN-Revision: 7960
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102
package/madwifi/patches/306-bstuck_calibrate.patch
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102
package/madwifi/patches/306-bstuck_calibrate.patch
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Index: madwifi-ng-r2568-20070710/ath/if_ath.c
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===================================================================
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--- madwifi-ng-r2568-20070710.orig/ath/if_ath.c 2007-07-13 11:14:06.322980052 +0200
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+++ madwifi-ng-r2568-20070710/ath/if_ath.c 2007-07-13 11:15:00.834086460 +0200
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@@ -153,6 +153,7 @@
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static void ath_turbo_switch_mode(unsigned long);
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static int ath_check_beacon_done(struct ath_softc *);
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#endif
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+static void ath_do_calibrate(struct net_device *);
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static void ath_beacon_send(struct ath_softc *, int *);
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static void ath_beacon_start_adhoc(struct ath_softc *, struct ieee80211vap *);
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static void ath_beacon_return(struct ath_softc *, struct ath_buf *);
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@@ -4173,7 +4174,7 @@
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DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
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"%s: missed %u consecutive beacons\n",
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__func__, sc->sc_bmisscount);
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- if (sc->sc_bmisscount > BSTUCK_THRESH)
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+ if (sc->sc_bmisscount > BSTUCK_CALIBR_THR)
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ATH_SCHEDULE_TQUEUE(&sc->sc_bstucktq, needmark);
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return;
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}
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@@ -4312,8 +4313,17 @@
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* check will be true, in which case return
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* without resetting the driver.
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*/
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- if (sc->sc_bmisscount <= BSTUCK_THRESH)
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+ if (sc->sc_bmisscount <= BSTUCK_CALIBR_THR)
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return;
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+
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+ if (sc->sc_bmisscount <= BSTUCK_RESET_THR) {
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+ ATH_LOCK(sc);
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+ ath_do_calibrate(dev);
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+ mod_timer(&sc->sc_cal_ch, jiffies + (ath_calinterval * HZ));
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+ ATH_UNLOCK(sc);
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+ return;
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+ }
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+
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printk("%s: stuck beacon; resetting (bmiss count %u)\n",
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DEV_NAME(dev), sc->sc_bmisscount);
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ath_reset(dev);
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@@ -8027,17 +8037,13 @@
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* Periodically recalibrate the PHY to account
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* for temperature/environment changes.
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*/
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-static void
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-ath_calibrate(unsigned long arg)
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+static void ath_do_calibrate(struct net_device *dev)
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{
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- struct net_device *dev = (struct net_device *) arg;
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struct ath_softc *sc = dev->priv;
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struct ath_hal *ah = sc->sc_ah;
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- /* u_int32_t nchans; */
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HAL_BOOL isIQdone = AH_FALSE;
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sc->sc_stats.ast_per_cal++;
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-
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DPRINTF(sc, ATH_DEBUG_CALIBRATE, "%s: channel %u/%x\n",
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__func__, sc->sc_curchan.channel, sc->sc_curchan.channelFlags);
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@@ -8055,15 +8061,26 @@
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__func__, sc->sc_curchan.channel);
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sc->sc_stats.ast_per_calfail++;
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}
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-
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- ath_hal_process_noisefloor(ah);
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if (isIQdone == AH_TRUE)
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ath_calinterval = ATH_LONG_CALINTERVAL;
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else
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ath_calinterval = ATH_SHORT_CALINTERVAL;
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+}
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+
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+static void
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+ath_calibrate(unsigned long arg)
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+{
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+ struct net_device *dev = (struct net_device *) arg;
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+ struct ath_softc *sc = dev->priv;
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+ struct ath_hal *ah = sc->sc_ah;
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+
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+ ATH_LOCK(sc);
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+ ath_do_calibrate(dev);
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+ ath_hal_process_noisefloor(ah);
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sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
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add_timer(&sc->sc_cal_ch);
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+ ATH_UNLOCK(sc);
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}
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static void
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Index: madwifi-ng-r2568-20070710/ath/if_athvar.h
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===================================================================
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--- madwifi-ng-r2568-20070710.orig/ath/if_athvar.h 2007-07-13 11:14:06.274977315 +0200
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+++ madwifi-ng-r2568-20070710/ath/if_athvar.h 2007-07-13 11:14:06.522991448 +0200
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@@ -538,7 +538,8 @@
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*/
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#define ATH_TXQ_MOVE_Q(_tqs,_tqd) ATH_TXQ_MOVE_MCASTQ(_tqs,_tqd)
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-#define BSTUCK_THRESH 10 /* # of stuck beacons before resetting NB: this is a guess*/
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+#define BSTUCK_CALIBR_THR 3 /* # of stuck beacons before restarting calibration */
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+#define BSTUCK_RESET_THR 10 /* # of stuck beacons before resetting NB: this is a guess*/
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struct ath_softc {
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struct ieee80211com sc_ic; /* NB: must be first */
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