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-rw-r--r--package/madwifi/patches/118-txstop_workaround.patch45
1 files changed, 45 insertions, 0 deletions
diff --git a/package/madwifi/patches/118-txstop_workaround.patch b/package/madwifi/patches/118-txstop_workaround.patch
new file mode 100644
index 0000000000..f82d46628b
--- /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 *);