madwifi patch cleanup and stability fixes

- fix a semi-random heisenbug by replacing the previous noderef fix with a simple hack that is not 100% correct, but safe.
- add ad-hoc atim fixes by bruno
- add napi polling fixes by sven-ola
- fix compile breakage with debug enabled

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12838 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 207 insertions, 2 deletions

diff --git a/package/madwifi/patches/379-invalid_rate_fix.patch b/package/madwifi/patches/379-invalid_rate_fix.patch
index 0128ca2691..305d26d600 100644
--- a/package/madwifi/patches/379-invalid_rate_fix.patch
+++ b/package/madwifi/patches/379-invalid_rate_fix.patch
@@ -29,7 +29,75 @@
  #define ONE_SECOND (1000 * 1000)  /* 1 second, or 1000 milliseconds; eternity, in other words */
  
  #include "release.h"
-@@ -689,17 +675,17 @@
+@@ -471,11 +457,11 @@
+ 		final_rate = sc->sc_hwmap[ts->ts_rate & ~HAL_TXSTAT_ALTRATE].ieeerate;
+ 		final_ndx = rate_to_ndx(sn, final_rate);
+ 		if (final_ndx >= sn->num_rates) {
+-			DPRINTF(sc, "%s: final ndx too high\n", __func__);
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: final ndx too high\n", __func__);
+ 			final_ndx = 0;
+ 		}
+ 		if (final_ndx < 0) {
+-			DPRINTF(sc, "%s: final ndx too low\n", __func__);
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: final ndx too low\n", __func__);
+ 			final_ndx = 0;
+ 		}
+ 
+@@ -485,7 +471,7 @@
+ 		tries = ts->ts_longretry + 1;
+ 
+ 		if (sn->num_rates <= 0) {
+-			DPRINTF(sc, "%s: " MAC_FMT " %s no rates yet\n", dev_info,
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: " MAC_FMT " %s no rates yet\n", dev_info,
+ 				MAC_ADDR(an->an_node.ni_macaddr), __func__);
+ 			return;
+ 		}
+@@ -551,7 +537,7 @@
+ static void
+ ath_rate_newassoc(struct ath_softc *sc, struct ath_node *an, int isnew)
+ {
+-		DPRINTF(sc, "%s: " MAC_FMT " %s\n", dev_info,
++		DPRINTF(sc, ATH_DEBUG_RATE, "%s: " MAC_FMT " %s\n", dev_info,
+ 			MAC_ADDR(an->an_node.ni_macaddr), __func__);
+ 		if (isnew)
+ 			ath_rate_ctl_reset(sc, &an->an_node);
+@@ -601,7 +587,7 @@
+ 			    p = rates + sprintf(rates, "rates :: %d ", column_index);
+ 			    for (i = 0; i < num_sample_rates; i++)
+ 			            p += sprintf(p, "%2u ", sn->rs_sampleTable[i][column_index]);
+-			    DPRINTF(sc, "%s\n", rates);
++			    DPRINTF(sc, ATH_DEBUG_RATE, "%s\n", rates);
+ 		};
+ #endif
+ }
+@@ -628,7 +614,7 @@
+ 		sn->is_sampling = 0;
+ 
+ 		if (rt == NULL) {
+-			DPRINTF(sc, "no rates yet! mode %u\n", sc->sc_curmode);
++			DPRINTF(sc, ATH_DEBUG_RATE, "no rates yet! mode %u\n", sc->sc_curmode);
+ 			return;
+ 		}
+ 		sn->static_rate_ndx = -1;
+@@ -658,7 +644,7 @@
+ 			sn->rates[x].rix = sc->sc_rixmap[sn->rates[x].rate];
+ 			}
+ 			if (sn->rates[x].rix == 0xff) {
+-				DPRINTF(sc, "%s: %s ignore bogus rix at %d\n",
++				DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s ignore bogus rix at %d\n",
+ 					dev_info, __func__, x);
+ 				continue;
+ 			}
+@@ -673,7 +659,7 @@
+ 		ni->ni_txrate = 0;
+ 
+ 		if (sn->num_rates <= 0) {
+-			DPRINTF(sc, "%s: %s " MAC_FMT " no rates (fixed %d) \n",
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " no rates (fixed %d) \n",
+ 				dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
+ 				vap->iv_fixed_rate);
+ 			/* There are no rates yet; we're done */
+@@ -689,23 +675,23 @@
  			 * the node.  We know the rate is there because the
  			 * rate set is checked when the station associates. */
  			/* NB: the rate set is assumed sorted */
@@ -48,13 +116,72 @@
 +			if ((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate)
 +				EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
 +			else
-+				DPRINTF(sc, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
++				DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
 +					dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
 +					sn->rates[srate].rate / 2,
 +					(sn->rates[srate].rate % 2) ? ".5 " : " ");
  			return;
  		}
  
+ 		for (x = 0; x < ni->ni_rates.rs_nrates; x++) {
+ 			if (sn->rates[x].rix == 0xff) {
+-				DPRINTF(sc, "%s: %s ignore bogus rix at %d\n",
++				DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s ignore bogus rix at %d\n",
+ 					dev_info, __func__, x);
+ 				continue;
+ 			}
+@@ -735,9 +721,9 @@
+ 		}
+ 
+ #if 0
+-		DPRINTF(sc, "%s: Retry table for this node\n", __func__);
++		DPRINTF(sc, ATH_DEBUG_RATE, "%s: Retry table for this node\n", __func__);
+ 		  for (x = 0; x < ni->ni_rates.rs_nrates; x++)
+-			     DPRINTF(sc, "%2d  %2d %6d  \n", x, sn->retry_count[x], sn->perfect_tx_time[x]);
++			     DPRINTF(sc, ATH_DEBUG_RATE, "%2d  %2d %6d  \n", x, sn->retry_count[x], sn->perfect_tx_time[x]);
+ #endif
+ 
+ 		/* Set the initial rate */
+@@ -781,10 +767,10 @@
+ 		unsigned int interval = ath_timer_interval;
+ 
+ 		if (dev == NULL)
+-			DPRINTF(sc, "%s: 'dev' is null in this timer \n", __func__);
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: 'dev' is null in this timer \n", __func__);
+ 
+ 		if (sc == NULL)
+-			DPRINTF(sc, "%s: 'sc' is null in this timer\n", __func__);
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: 'sc' is null in this timer\n", __func__);
+ 
+ 		ic = &sc->sc_ic;
+ 
+@@ -808,7 +794,7 @@
+ 
+ 		timer  = &(ssc->timer);
+ 		if (timer == NULL)
+-			DPRINTF(sc, "%s: timer is null - leave it\n", __func__);
++			DPRINTF(sc, ATH_DEBUG_RATE, "%s: timer is null - leave it\n", __func__);
+ 
+ 		timer->expires = jiffies + ((HZ * interval) / 1000);
+ 		add_timer(timer);
+@@ -904,7 +890,7 @@
+ ath_rate_attach(struct ath_softc *sc)
+ {
+ 		struct minstrel_softc *osc;
+-		DPRINTF(sc, "%s: %s\n", dev_info, __func__);
++		DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s\n", dev_info, __func__);
+ 
+ 		_MOD_INC_USE(THIS_MODULE, return NULL);
+ 		osc = kmalloc(sizeof(struct minstrel_softc), GFP_ATOMIC);
+@@ -963,7 +949,7 @@
+ 					p += sprintf(p, "out of room for node " MAC_FMT "\n\n", MAC_ADDR(ni->ni_macaddr));
+ 					break;
+ 				}
+-				DPRINTF(sc, "%s: out of memeory to write tall of the nodes\n", __func__);
++				DPRINTF(sc, ATH_DEBUG_RATE, "%s: out of memeory to write tall of the nodes\n", __func__);
+ 			            break;
+ 			}
+ 			an = ATH_NODE(ni);
 --- a/ath_rate/amrr/amrr.c
 +++ b/ath_rate/amrr/amrr.c
 @@ -64,24 +64,13 @@
@@ -83,6 +210,15 @@
  static int ath_rateinterval = 1000;		/* rate ctl interval (ms)  */
  static int ath_rate_max_success_threshold = 10;
  static int ath_rate_min_success_threshold = 1;
+@@ -197,7 +186,7 @@
+ 
+ 	KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
+ 
+-	DPRINTF(sc, "%s: set xmit rate for " MAC_FMT " to %dM\n",
++	DPRINTF(sc, ATH_DEBUG_RATE, "%s: set xmit rate for " MAC_FMT " to %dM\n",
+ 		__func__, MAC_ADDR(ni->ni_macaddr),
+ 		ni->ni_rates.rs_nrates > 0 ?
+ 			(ni->ni_rates.rs_rates[rate] & IEEE80211_RATE_VAL) / 2 : 0);
 @@ -297,9 +286,9 @@
  		 * rate set is checked when the station associates.
  		 */
@@ -96,6 +232,39 @@
  	}
  	ath_rate_update(sc, ni, srate);
  #undef RATE
+@@ -377,7 +366,7 @@
+ 
+ 	old_rate = ni->ni_txrate;
+ 
+-  	DPRINTF (sc, "cnt0: %d cnt1: %d cnt2: %d cnt3: %d -- threshold: %d\n",
++  	DPRINTF(sc, ATH_DEBUG_RATE, "cnt0: %d cnt1: %d cnt2: %d cnt3: %d -- threshold: %d\n",
+ 		 amn->amn_tx_try0_cnt,
+ 		 amn->amn_tx_try1_cnt,
+ 		 amn->amn_tx_try2_cnt,
+@@ -390,7 +379,7 @@
+   			amn->amn_recovery = 1;
+   			amn->amn_success = 0;
+   			ni->ni_txrate++;
+-			DPRINTF(sc, "increase rate to %d\n", ni->ni_txrate);
++			DPRINTF(sc, ATH_DEBUG_RATE, "increase rate to %d\n", ni->ni_txrate);
+   		} else
+ 			amn->amn_recovery = 0;
+   	} else if (is_failure(amn)) {
+@@ -401,12 +390,12 @@
+   				amn->amn_success_threshold *= 2;
+   				amn->amn_success_threshold = min(amn->amn_success_threshold,
+ 								  (u_int)ath_rate_max_success_threshold);
+- 				DPRINTF(sc, "decrease rate recovery thr: %d\n",
++ 				DPRINTF(sc, ATH_DEBUG_RATE, "decrease rate recovery thr: %d\n",
+ 					amn->amn_success_threshold);
+   			} else {
+   				/* simple failure. */
+  				amn->amn_success_threshold = ath_rate_min_success_threshold;
+- 				DPRINTF(sc, "decrease rate normal thr: %d\n",
++ 				DPRINTF(sc, ATH_DEBUG_RATE, "decrease rate normal thr: %d\n",
+ 					amn->amn_success_threshold);
+   			}
+ 			amn->amn_recovery = 0;
 --- a/ath_rate/onoe/onoe.c
 +++ b/ath_rate/onoe/onoe.c
 @@ -60,27 +60,13 @@
@@ -127,6 +296,15 @@
  /*
   * Default parameters for the rate control algorithm.  These are
   * all tunable with sysctls.  The rate controller runs periodically
+@@ -186,7 +172,7 @@
+ 
+ 	KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
+ 
+-	DPRINTF(sc, "%s: set xmit rate for " MAC_FMT " to %dM\n",
++	DPRINTF(sc, ATH_DEBUG_RATE, "%s: set xmit rate for " MAC_FMT " to %dM\n",
+ 		__func__, MAC_ADDR(ni->ni_macaddr),
+ 		ni->ni_rates.rs_nrates > 0 ?
+ 			(ni->ni_rates.rs_rates[rate] & IEEE80211_RATE_VAL) / 2 : 0);
 @@ -283,9 +269,9 @@
  		 */
  		/* NB: the rate set is assumed sorted */
@@ -140,6 +318,24 @@
  	}
  	ath_rate_update(sc, ni, srate);
  #undef RATE
+@@ -364,7 +350,7 @@
+ 	    on->on_tx_retr < (on->on_tx_ok * ath_rate_raise) / 100)
+ 		dir = 1;
+ 
+-	DPRINTF(sc, MAC_FMT ": ok %d err %d retr %d upper %d dir %d\n",
++	DPRINTF(sc, ATH_DEBUG_RATE, MAC_FMT ": ok %d err %d retr %d upper %d dir %d\n",
+ 		MAC_ADDR(ni->ni_macaddr),
+ 		on->on_tx_ok, on->on_tx_err, on->on_tx_retr,
+ 		on->on_tx_upper, dir);
+@@ -395,7 +381,7 @@
+ 	}
+ 
+ 	if (nrate != ni->ni_txrate) {
+-		DPRINTF(sc, "%s: %dM -> %dM (%d ok, %d err, %d retr)\n",
++		DPRINTF(sc, ATH_DEBUG_RATE, "%s: %dM -> %dM (%d ok, %d err, %d retr)\n",
+ 		    __func__,
+ 		    (rs->rs_rates[ni->ni_txrate] & IEEE80211_RATE_VAL) / 2,
+ 		    (rs->rs_rates[nrate] & IEEE80211_RATE_VAL) / 2,
 --- a/ath_rate/sample/sample.c
 +++ b/ath_rate/sample/sample.c
 @@ -62,30 +62,13 @@
@@ -174,6 +370,15 @@
  /*
   * This file is an implementation of the SampleRate algorithm
   * in "Bit-rate Selection in Wireless Networks"
+@@ -740,7 +723,7 @@
+ 		ndx[3] = rate_to_ndx(sn, rate[3]);
+ 
+ #if 0
+-		DPRINTF(sc, "%s: " MAC_FMT " size %u finaltsidx %u tries %u status %u rate/try %u/%u %u/%u %u/%u %u/%u\n",
++		DPRINTF(sc, ATH_DEBUG_RATE, "%s: " MAC_FMT " size %u finaltsidx %u tries %u status %u rate/try %u/%u %u/%u %u/%u %u/%u\n",
+ 			dev_info, MAC_ADDR(an->an_node.ni_macaddr),
+ 			bin_to_size(size_to_bin(frame_size)),
+ 			finalTSIdx,
 @@ -886,15 +869,16 @@
  			if ((ni->ni_rates.rs_rates[x] & IEEE80211_RATE_VAL) == vap->iv_fixed_rate)
  				srate = x;