madwifi: fix bugs in the calibration triggers
SVN-Revision: 17691
This commit is contained in:
Felix Fietkau
177
package/madwifi/patches/450-calibration.patch
Normal file
177
package/madwifi/patches/450-calibration.patch
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@@ -0,0 +1,177 @@
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--- a/ath/if_ath.c
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+++ b/ath/if_ath.c
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@@ -396,7 +396,6 @@ static int tpc = 1;
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static int maxvaps = -1;
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static int xchanmode = -1;
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#include "ath_wprobe.c"
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-static int beacon_cal = 1;
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static const struct ath_hw_detect generic_hw_info = {
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.vendor_name = "Unknown",
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@@ -431,7 +430,6 @@ static struct notifier_block ath_event_b
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};
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,52))
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-MODULE_PARM(beacon_cal, "i");
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MODULE_PARM(maxvaps, "i");
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MODULE_PARM(xchanmode, "i");
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MODULE_PARM(rfkill, "i");
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@@ -443,7 +441,6 @@ MODULE_PARM(autocreate, "s");
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MODULE_PARM(ratectl, "s");
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#else
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#include <linux/moduleparam.h>
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-module_param(beacon_cal, int, 0600);
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module_param(maxvaps, int, 0600);
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module_param(xchanmode, int, 0600);
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module_param(rfkill, int, 0600);
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@@ -837,6 +834,7 @@ ath_attach(u_int16_t devid, struct net_d
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error = EIO;
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goto bad2;
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}
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+ sc->sc_cal_interval = ath_calinterval;
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init_timer(&sc->sc_cal_ch);
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sc->sc_cal_ch.function = ath_calibrate;
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sc->sc_cal_ch.data = (unsigned long) dev;
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@@ -2765,8 +2763,7 @@ ath_stop_locked(struct net_device *dev)
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}
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if (!sc->sc_invalid) {
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del_timer_sync(&sc->sc_dfs_cac_timer);
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- if (!sc->sc_beacon_cal)
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- del_timer_sync(&sc->sc_cal_ch);
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+ del_timer_sync(&sc->sc_cal_ch);
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}
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ath_draintxq(sc);
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if (!sc->sc_invalid) {
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@@ -2791,10 +2788,9 @@ static void ath_set_beacon_cal(struct at
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if (val) {
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del_timer_sync(&sc->sc_cal_ch);
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} else {
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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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+ mod_timer(&sc->sc_cal_ch, jiffies + (sc->sc_cal_interval * HZ));
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}
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- sc->sc_beacon_cal = !!val && beacon_cal;
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+ sc->sc_beacon_cal = !!val;
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}
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/*
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@@ -3036,7 +3032,7 @@ ath_reset(struct net_device *dev)
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* XXX: starting the calibration too early seems to lead to
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* problems with the beacons.
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*/
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- sc->sc_lastcal = jiffies;
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+ sc->sc_nextcal = jiffies + msecs_to_jiffies(sc->sc_cal_interval * 1000);
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/*
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* Convert to a HAL channel description with the flags
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@@ -5477,10 +5473,9 @@ next:
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"Invoking ath_hal_txstart with sc_bhalq: %d\n",
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sc->sc_bhalq);
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ath_hal_txstart(ah, sc->sc_bhalq);
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- if (sc->sc_beacon_cal && (jiffies > sc->sc_lastcal + (ath_calinterval * HZ))) {
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- sc->sc_cal_ch.expires = jiffies + msecs_to_jiffies(10);
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- add_timer(&sc->sc_cal_ch);
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- }
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+ if (sc->sc_beacon_cal && ((sc->sc_bmisscount == 3) ||
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+ (jiffies > sc->sc_nextcal)))
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+ mod_timer(&sc->sc_cal_ch, jiffies + 1);
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sc->sc_stats.ast_be_xmit++; /* XXX per-VAP? */
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}
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@@ -9161,6 +9156,7 @@ ath_startrecv(struct ath_softc *sc)
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dev->mtu, sc->sc_cachelsz, sc->sc_rxbufsize);
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sc->sc_rxlink = NULL;
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+ ath_set_beacon_cal(sc, IEEE80211_IS_MODE_BEACON(sc->sc_ic.ic_opmode));
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STAILQ_FOREACH(bf, &sc->sc_rxbuf, bf_list) {
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int error = ath_rxbuf_init(sc, bf);
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ATH_RXBUF_RESET(bf);
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@@ -9377,7 +9373,7 @@ ath_chan_set(struct ath_softc *sc, struc
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jiffies + (sc->sc_dfs_cac_period * HZ));
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/* This is a good time to start a calibration */
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- ath_set_beacon_cal(sc, 1);
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+ mod_timer(&sc->sc_cal_ch, jiffies + 1);
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}
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/*
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* re configure beacons when it is a turbo mode switch.
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@@ -9471,25 +9467,23 @@ ath_calibrate(unsigned long arg)
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if (isIQdone == AH_TRUE) {
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/* Unless user has overridden calibration interval,
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* upgrade to less frequent calibration */
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- if (ath_calinterval == ATH_SHORT_CALINTERVAL)
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- ath_calinterval = ATH_LONG_CALINTERVAL;
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+ if (sc->sc_cal_interval == ATH_SHORT_CALINTERVAL)
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+ sc->sc_cal_interval = ATH_LONG_CALINTERVAL;
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}
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else {
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/* Unless user has overridden calibration interval,
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* downgrade to more frequent calibration */
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- if (ath_calinterval == ATH_LONG_CALINTERVAL)
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- ath_calinterval = ATH_SHORT_CALINTERVAL;
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+ if (sc->sc_cal_interval == ATH_LONG_CALINTERVAL)
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+ sc->sc_cal_interval = ATH_SHORT_CALINTERVAL;
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}
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DPRINTF(sc, ATH_DEBUG_CALIBRATE, "Channel %u/%x -- IQ %s.\n",
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sc->sc_curchan.channel, sc->sc_curchan.channelFlags,
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isIQdone ? "done" : "not done");
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- sc->sc_lastcal = jiffies;
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- if (!sc->sc_beacon_cal) {
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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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- }
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+ sc->sc_nextcal = jiffies + msecs_to_jiffies(sc->sc_cal_interval * 1000);
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+ if (!sc->sc_beacon_cal)
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+ mod_timer(&sc->sc_cal_ch, sc->sc_nextcal);
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}
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static void
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@@ -9597,9 +9591,6 @@ ath_newstate(struct ieee80211vap *vap, e
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ieee80211_state_name[vap->iv_state],
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ieee80211_state_name[nstate]);
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- if (!sc->sc_beacon_cal)
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- del_timer(&sc->sc_cal_ch); /* periodic calibration timer */
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-
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ath_hal_setledstate(ah, leds[nstate]); /* set LED */
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netif_stop_queue(dev); /* before we do anything else */
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@@ -9821,10 +9812,7 @@ ath_newstate(struct ieee80211vap *vap, e
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IEEE80211_IS_MODE_DFS_MASTER(vap->iv_opmode)) {
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DPRINTF(sc, ATH_DEBUG_STATE | ATH_DEBUG_DOTH,
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"VAP -> DFSWAIT_PENDING \n");
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- /* start calibration timer with a really small value
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- * 1/10 sec */
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- if (!sc->sc_beacon_cal)
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- mod_timer(&sc->sc_cal_ch, jiffies + (HZ/10));
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+ mod_timer(&sc->sc_cal_ch, jiffies + 1);
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/* wake the receiver */
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netif_wake_queue(dev);
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/* don't do the other usual stuff... */
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@@ -9866,12 +9854,6 @@ done:
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/* Invoke the parent method to complete the work. */
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error = avp->av_newstate(vap, nstate, arg);
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- /* Finally, start any timers. */
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- if (nstate == IEEE80211_S_RUN && !sc->sc_beacon_cal) {
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- /* start periodic recalibration timer */
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- mod_timer(&sc->sc_cal_ch, jiffies + (ath_calinterval * HZ));
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- }
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-
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#ifdef ATH_SUPERG_XR
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if (vap->iv_flags & IEEE80211_F_XR &&
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nstate == IEEE80211_S_RUN)
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--- a/ath/if_athvar.h
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+++ b/ath/if_athvar.h
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@@ -834,7 +834,8 @@ struct ath_softc {
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struct ieee80211_channel *sc_last_chan;
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int sc_beacon_cal; /* use beacon timer for calibration */
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- u_int64_t sc_lastcal; /* last time the calibration was performed */
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+ u_int64_t sc_nextcal; /* last time the calibration was performed */
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+ int sc_cal_interval; /* current calibration interval */
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struct timer_list sc_cal_ch; /* calibration timer */
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HAL_NODE_STATS sc_halstats; /* station-mode rssi stats */
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