huge madwifi update - use a madwifi-ng-refcount snapshot as base, includes lots of...

[openwrt/svn-archive/archive.git] / package / madwifi / patches / 118-txstop_workaround.patch

diff --git a/package/madwifi/patches/118-txstop_workaround.patch b/package/madwifi/patches/118-txstop_workaround.patch
new file mode 100644 (file)
index 0000000..f82d466
--- /dev/null
+++ b/package/madwifi/patches/118-txstop_workaround.patch
@@ -0,0 +1,45 @@
+diff -urN madwifi-ng-refcount-r2313-20070505.old/ath/if_ath.c madwifi-ng-refcount-r2313-20070505.dev/ath/if_ath.c
+--- madwifi-ng-refcount-r2313-20070505.old/ath/if_ath.c        2007-05-13 18:17:56.196025944 +0200
++++ madwifi-ng-refcount-r2313-20070505.dev/ath/if_ath.c        2007-05-13 18:17:56.284012568 +0200
+@@ -1711,6 +1711,7 @@
+                       } 
+ #endif
+                       ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
++                      sc->sc_tx_start = 0;
+               }
+               if (status & HAL_INT_BMISS) {
+                       sc->sc_stats.ast_bmiss++;
+@@ -2264,6 +2265,15 @@
+               txq->axq_link = &lastds->ds_link;
+               ath_hal_txstart(ah, txq->axq_qnum);
+               sc->sc_dev->trans_start = jiffies;
++              if (sc->sc_tx_start) {
++                      if (jiffies > sc->sc_tx_start + 2 * HZ) {
++                              printk("%s: Tx queue stuck. Resetting hardware...\n", sc->sc_dev->name);
++                              ath_reset(sc->sc_dev);
++                              sc->sc_tx_start = 0;
++                      }
++              } else {
++                      sc->sc_tx_start = jiffies;
++              }
+       }
+       ATH_TXQ_UNLOCK(txq);
+ 
+diff -urN madwifi-ng-refcount-r2313-20070505.old/ath/if_athvar.h madwifi-ng-refcount-r2313-20070505.dev/ath/if_athvar.h
+--- madwifi-ng-refcount-r2313-20070505.old/ath/if_athvar.h     2007-05-04 23:09:29.000000000 +0200
++++ madwifi-ng-refcount-r2313-20070505.dev/ath/if_athvar.h     2007-05-13 18:17:56.285012416 +0200
+@@ -689,6 +689,14 @@
+ #endif
+       u_int sc_slottimeconf;                  /* manual override for slottime */
+       int16_t sc_channoise;                   /* Measured noise of current channel (dBm) */
++
++      /* 
++       * Several MiniPCI cards and most SoC revs frequently cease all transmission
++       * when operating in IBSS mode. The reason for this is unknown and could potentially
++       * be a hardware bug. This variable contains the timestamp of the last successful
++       * transmission and is checked when enqueueing new frames
++       */
++      unsigned long sc_tx_start;
+ };
+ 
+ typedef void (*ath_callback) (struct ath_softc *);