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diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
--- madwifi.old/ath/if_ath.c 2007-05-15 16:26:02.721036296 +0200
+++ madwifi.dev/ath/if_ath.c 2007-05-20 21:33:53.269103736 +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++;
@@ -2261,11 +2262,25 @@
txq->axq_link = &lastds->ds_link;
ath_hal_txstart(ah, txq->axq_qnum);
sc->sc_dev->trans_start = jiffies;
+ if ((sc->sc_opmode == HAL_M_IBSS) || (sc->sc_opmode == HAL_M_HOSTAP)) {
+ unsigned long last;
+ last = sc->sc_tx_start;
+ if (last) {
+ if (jiffies > last + 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);
sc->sc_devstats.tx_packets++;
sc->sc_devstats.tx_bytes += framelen;
+ sc->sc_tx_start = 0;
}
static int
@@ -7272,7 +7287,7 @@
DPRINTF(sc, ATH_DEBUG_UAPSD, "%s: reaping U-APSD txq\n", __func__);
uapsdq = 1;
}
-
+
for (;;) {
if (uapsdq)
ATH_TXQ_UAPSDQ_LOCK_IRQ(txq);
diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
--- madwifi.old/ath/if_athvar.h 2007-05-04 23:09:29.000000000 +0200
+++ madwifi.dev/ath/if_athvar.h 2007-05-15 16:26:28.911054808 +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 *);
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