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madwifi: patch for 'fixing' stuck beacons through card recalibration 

SVN-Revision: 7960
lede-17.01
Felix Fietkau 2007-07-13 09:17:34 +00:00
parent 84027d8d76
commit e787afedab
1 changed files with 102 additions and 0 deletions
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102
package/madwifi/patches/306-bstuck_calibrate.patch Normal file
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@ -0,0 +1,102 @@
Index: madwifi-ng-r2568-20070710/ath/if_ath.c
===================================================================
--- madwifi-ng-r2568-20070710.orig/ath/if_ath.c 2007-07-13 11:14:06.322980052 +0200
+++ madwifi-ng-r2568-20070710/ath/if_ath.c 2007-07-13 11:15:00.834086460 +0200
@@ -153,6 +153,7 @@
static void ath_turbo_switch_mode(unsigned long);
static int ath_check_beacon_done(struct ath_softc *);
#endif
+static void ath_do_calibrate(struct net_device *);
static void ath_beacon_send(struct ath_softc *, int *);
static void ath_beacon_start_adhoc(struct ath_softc *, struct ieee80211vap *);
static void ath_beacon_return(struct ath_softc *, struct ath_buf *);
@@ -4173,7 +4174,7 @@
DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
"%s: missed %u consecutive beacons\n",
__func__, sc->sc_bmisscount);
- if (sc->sc_bmisscount > BSTUCK_THRESH)
+ if (sc->sc_bmisscount > BSTUCK_CALIBR_THR)
ATH_SCHEDULE_TQUEUE(&sc->sc_bstucktq, needmark);
return;
}
@@ -4312,8 +4313,17 @@
* check will be true, in which case return
* without resetting the driver.
*/
- if (sc->sc_bmisscount <= BSTUCK_THRESH)
+ if (sc->sc_bmisscount <= BSTUCK_CALIBR_THR)
return;
+
+ if (sc->sc_bmisscount <= BSTUCK_RESET_THR) {
+ ATH_LOCK(sc);
+ ath_do_calibrate(dev);
+ mod_timer(&sc->sc_cal_ch, jiffies + (ath_calinterval * HZ));
+ ATH_UNLOCK(sc);
+ return;
+ }
+
printk("%s: stuck beacon; resetting (bmiss count %u)\n",
DEV_NAME(dev), sc->sc_bmisscount);
ath_reset(dev);
@@ -8027,17 +8037,13 @@
* Periodically recalibrate the PHY to account
* for temperature/environment changes.
*/
-static void
-ath_calibrate(unsigned long arg)
+static void ath_do_calibrate(struct net_device *dev)
{
- struct net_device *dev = (struct net_device *) arg;
struct ath_softc *sc = dev->priv;
struct ath_hal *ah = sc->sc_ah;
- /* u_int32_t nchans; */
HAL_BOOL isIQdone = AH_FALSE;
sc->sc_stats.ast_per_cal++;
-
DPRINTF(sc, ATH_DEBUG_CALIBRATE, "%s: channel %u/%x\n",
__func__, sc->sc_curchan.channel, sc->sc_curchan.channelFlags);
@@ -8055,15 +8061,26 @@
__func__, sc->sc_curchan.channel);
sc->sc_stats.ast_per_calfail++;
}
-
- ath_hal_process_noisefloor(ah);
if (isIQdone == AH_TRUE)
ath_calinterval = ATH_LONG_CALINTERVAL;
else
ath_calinterval = ATH_SHORT_CALINTERVAL;
+}
+
+static void
+ath_calibrate(unsigned long arg)
+{
+ struct net_device *dev = (struct net_device *) arg;
+ struct ath_softc *sc = dev->priv;
+ struct ath_hal *ah = sc->sc_ah;
+
+ ATH_LOCK(sc);
+ ath_do_calibrate(dev);
+ ath_hal_process_noisefloor(ah);
sc->sc_cal_ch.expires = jiffies + (ath_calinterval * HZ);
add_timer(&sc->sc_cal_ch);
+ ATH_UNLOCK(sc);
}
static void
Index: madwifi-ng-r2568-20070710/ath/if_athvar.h
===================================================================
--- madwifi-ng-r2568-20070710.orig/ath/if_athvar.h 2007-07-13 11:14:06.274977315 +0200
+++ madwifi-ng-r2568-20070710/ath/if_athvar.h 2007-07-13 11:14:06.522991448 +0200
@@ -538,7 +538,8 @@
*/
#define ATH_TXQ_MOVE_Q(_tqs,_tqd) ATH_TXQ_MOVE_MCASTQ(_tqs,_tqd)
-#define BSTUCK_THRESH 10 /* # of stuck beacons before resetting NB: this is a guess*/
+#define BSTUCK_CALIBR_THR 3 /* # of stuck beacons before restarting calibration */
+#define BSTUCK_RESET_THR 10 /* # of stuck beacons before resetting NB: this is a guess*/
struct ath_softc {
struct ieee80211com sc_ic; /* NB: must be first */