oops... wrong patch (unfixed typo)
[openwrt-10.03/.git] / package / madwifi / patches / 118-txstop_workaround.patch
1 diff -ur madwifi.old/ath/if_ath.c madwifi.dev/ath/if_ath.c
2 --- madwifi.old/ath/if_ath.c    2007-05-21 05:40:18.320301560 +0200
3 +++ madwifi.dev/ath/if_ath.c    2007-05-21 05:49:40.132893064 +0200
4 @@ -2264,6 +2264,17 @@
5                 txq->axq_link = &lastds->ds_link;
6                 ath_hal_txstart(ah, txq->axq_qnum);
7                 sc->sc_dev->trans_start = jiffies;
8 +               if ((sc->sc_opmode == HAL_M_IBSS) || (sc->sc_opmode == HAL_M_HOSTAP)) {
9 +                       if (sc->sc_tx_start && (ath_hal_numtxpending(ah, txq->axq_qnum) > 2)) {
10 +                               if (jiffies > sc->sc_tx_start + 2 * HZ) {
11 +                                       printk("%s: Tx queue stuck. Resetting hardware...\n", sc->sc_dev->name);
12 +                                       ath_reset(sc->sc_dev);
13 +                                       sc->sc_tx_start = 0;
14 +                               }
15 +                       } else {
16 +                               sc->sc_tx_start = jiffies;
17 +                       }
18 +               }
19         }
20         ATH_TXQ_UNLOCK(txq);
21  
22 @@ -7299,6 +7310,7 @@
23  #else
24                 ds = bf->bf_desc;               /* NB: last descriptor */
25  #endif
26 +               sc->sc_tx_start = 0;
27                 status = ath_hal_txprocdesc(ah, ds);
28  #ifdef AR_DEBUG
29                 if (sc->sc_debug & ATH_DEBUG_XMIT_DESC)
30 diff -ur madwifi.old/ath/if_athvar.h madwifi.dev/ath/if_athvar.h
31 --- madwifi.old/ath/if_athvar.h 2007-05-04 23:09:29.000000000 +0200
32 +++ madwifi.dev/ath/if_athvar.h 2007-05-21 05:40:32.958076280 +0200
33 @@ -689,6 +689,14 @@
34  #endif
35         u_int sc_slottimeconf;                  /* manual override for slottime */
36         int16_t sc_channoise;                   /* Measured noise of current channel (dBm) */
37 +
38 +       /* 
39 +        * Several MiniPCI cards and most SoC revs frequently cease all transmission
40 +        * when operating in IBSS mode. The reason for this is unknown and could potentially
41 +        * be a hardware bug. This variable contains the timestamp of the last successful
42 +        * transmission and is checked when enqueueing new frames
43 +        */
44 +       unsigned long sc_tx_start;
45  };
46  
47  typedef void (*ath_callback) (struct ath_softc *);