From e9fd938246ca0276c6424c0b01ff7ead972be675 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Tue, 7 Oct 2008 01:39:38 +0000
Subject: [PATCH] madwifi: allow ad-hoc mode with software based TSF merging
(hardware merging can screw up the internal timers and cause transmit hangs)
- based on a patch by sven-ola. activated by wlanconfig's nosbeacon flag
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12883 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
.../patches/355-eap_auth_disassoc.patch | 2 +-
package/madwifi/patches/363-fix_turbo.patch | 2 +-
.../madwifi/patches/366-bstuck_thresh.patch | 4 +-
package/madwifi/patches/370-wdsvap.patch | 4 +-
package/madwifi/patches/374-nbtt_fix.patch | 2 +-
.../madwifi/patches/375-atim_tsf_update.patch | 14 +--
package/madwifi/patches/383-ibss_hostap.patch | 105 ++++++++++++++++++
.../madwifi/patches/406-monitor_r3711.patch | 4 +-
.../madwifi/patches/408-changeset_r3337.patch | 2 +-
package/madwifi/patches/450-new_hal.patch | 2 +-
10 files changed, 123 insertions(+), 18 deletions(-)
create mode 100644 package/madwifi/patches/383-ibss_hostap.patch
diff --git a/package/madwifi/patches/355-eap_auth_disassoc.patch b/package/madwifi/patches/355-eap_auth_disassoc.patch
index e121dae21..a3d8de4f5 100644
--- a/package/madwifi/patches/355-eap_auth_disassoc.patch
+++ b/package/madwifi/patches/355-eap_auth_disassoc.patch
@@ -5,7 +5,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org>
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -8322,6 +8322,14 @@
+@@ -8332,6 +8332,14 @@
#endif
if (ts->ts_status & HAL_TXERR_XRETRY) {
sc->sc_stats.ast_tx_xretries++;
diff --git a/package/madwifi/patches/363-fix_turbo.patch b/package/madwifi/patches/363-fix_turbo.patch
index b3c732465..54fcd76a6 100644
--- a/package/madwifi/patches/363-fix_turbo.patch
+++ b/package/madwifi/patches/363-fix_turbo.patch
@@ -1,6 +1,6 @@
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -4915,7 +4915,7 @@
+@@ -4925,7 +4925,7 @@
* capability info and arrange for a mode change
* if needed.
*/
diff --git a/package/madwifi/patches/366-bstuck_thresh.patch b/package/madwifi/patches/366-bstuck_thresh.patch
index ecf5dc98f..6aa70d39b 100644
--- a/package/madwifi/patches/366-bstuck_thresh.patch
+++ b/package/madwifi/patches/366-bstuck_thresh.patch
@@ -32,7 +32,7 @@
MODULE_PARM_DESC(autocreate, "Create ath device in "
"[sta|ap|wds|adhoc|ahdemo|monitor] mode. defaults to sta, use "
"'none' to disable");
-@@ -5062,7 +5066,7 @@
+@@ -5072,7 +5076,7 @@
DPRINTF(sc, ATH_DEBUG_BEACON_PROC,
"Missed %u consecutive beacons (n_beacon=%u)\n",
sc->sc_bmisscount, n_beacon);
@@ -41,7 +41,7 @@
ATH_SCHEDULE_TQUEUE(&sc->sc_bstucktq, needmark);
return;
}
-@@ -5218,7 +5222,7 @@
+@@ -5228,7 +5232,7 @@
* check will be true, in which case return
* without resetting the driver.
*/
diff --git a/package/madwifi/patches/370-wdsvap.patch b/package/madwifi/patches/370-wdsvap.patch
index d5307bb4b..0e4b3a85d 100644
--- a/package/madwifi/patches/370-wdsvap.patch
+++ b/package/madwifi/patches/370-wdsvap.patch
@@ -67,7 +67,7 @@
/* override with driver methods */
vap = &avp->av_vap;
avp->av_newstate = vap->iv_newstate;
-@@ -4199,8 +4201,7 @@
+@@ -4209,8 +4211,7 @@
if (ic->ic_opmode == IEEE80211_M_STA ||
sc->sc_opmode == HAL_M_IBSS || /* NB: AHDEMO too */
(sc->sc_nostabeacons) || sc->sc_scanning ||
@@ -77,7 +77,7 @@
rfilt |= HAL_RX_FILTER_BEACON;
if (sc->sc_nmonvaps > 0)
rfilt |= (HAL_RX_FILTER_CONTROL | HAL_RX_FILTER_BEACON |
-@@ -9020,8 +9021,6 @@
+@@ -9030,8 +9031,6 @@
* set sc->beacons if we might need to restart
* them after ath_reset. */
if (!sc->sc_beacons &&
diff --git a/package/madwifi/patches/374-nbtt_fix.patch b/package/madwifi/patches/374-nbtt_fix.patch
index 99c13ee5d..d8959435d 100644
--- a/package/madwifi/patches/374-nbtt_fix.patch
+++ b/package/madwifi/patches/374-nbtt_fix.patch
@@ -1,6 +1,6 @@
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -5474,6 +5474,9 @@
+@@ -5484,6 +5484,9 @@
ath_beacon_dturbo_config(vap, intval &
~(HAL_BEACON_RESET_TSF | HAL_BEACON_ENA));
#endif
diff --git a/package/madwifi/patches/375-atim_tsf_update.patch b/package/madwifi/patches/375-atim_tsf_update.patch
index a8a05e03a..534986bbb 100644
--- a/package/madwifi/patches/375-atim_tsf_update.patch
+++ b/package/madwifi/patches/375-atim_tsf_update.patch
@@ -8,7 +8,7 @@
static int ath_desc_alloc(struct ath_softc *);
static void ath_desc_free(struct ath_softc *);
static void ath_desc_swap(struct ath_desc *);
-@@ -2783,6 +2784,72 @@
+@@ -2793,6 +2794,72 @@
return 1;
}
@@ -81,7 +81,7 @@
/*
* Reset the hardware w/o losing operational state. This is
* basically a more efficient way of doing ath_stop, ath_init,
-@@ -5282,6 +5349,7 @@
+@@ -5292,6 +5359,7 @@
u_int64_t tsf, hw_tsf;
u_int32_t tsftu, hw_tsftu;
u_int32_t intval, nexttbtt = 0;
@@ -89,7 +89,7 @@
int reset_tsf = 0;
if (vap == NULL)
-@@ -5289,6 +5357,9 @@
+@@ -5299,6 +5367,9 @@
ni = vap->iv_bss;
@@ -99,7 +99,7 @@
hw_tsf = ath_hal_gettsf64(ah);
tsf = le64_to_cpu(ni->ni_tstamp.tsf);
hw_tsftu = hw_tsf >> 10;
-@@ -5478,15 +5549,27 @@
+@@ -5488,15 +5559,27 @@
<= ath_hal_sw_beacon_response_time)
nexttbtt += intval;
sc->sc_nexttbtt = nexttbtt;
@@ -115,7 +115,7 @@
sc->sc_bmisscount = 0;
ath_hal_intrset(ah, sc->sc_imask);
+
-+ if (ath_hw_check_atim(sc, 1, intval & HAL_BEACON_PERIOD)) {
++ if ((sc->sc_opmode == HAL_M_IBSS) && ath_hw_check_atim(sc, 1, intval & HAL_BEACON_PERIOD)) {
+ DPRINTF(sc, ATH_DEBUG_BEACON,
+ "fixed atim window after beacon init\n");
+ }
@@ -127,11 +127,11 @@
/* We print all debug messages here, in order to preserve the
* time critical aspect of this function */
DPRINTF(sc, ATH_DEBUG_BEACON,
-@@ -6389,6 +6472,11 @@
+@@ -6399,6 +6482,11 @@
DPRINTF(sc, ATH_DEBUG_BEACON,
"Updated beacon timers\n");
}
-+ if ((sc->sc_opmode == IEEE80211_M_IBSS) &&
++ if ((sc->sc_opmode == HAL_M_IBSS) &&
+ IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid) &&
+ ath_hw_check_atim(sc, 1, vap->iv_bss->ni_intval)) {
+ DPRINTF(sc, ATH_DEBUG_ANY, "Fixed ATIM window after beacon recv\n");
diff --git a/package/madwifi/patches/383-ibss_hostap.patch b/package/madwifi/patches/383-ibss_hostap.patch
new file mode 100644
index 000000000..b65c4afe8
--- /dev/null
+++ b/package/madwifi/patches/383-ibss_hostap.patch
@@ -0,0 +1,105 @@
+--- a/ath/if_ath.c
++++ b/ath/if_ath.c
+@@ -1452,6 +1452,23 @@
+ sc->sc_nstavaps++;
+ else if (opmode == IEEE80211_M_MONITOR)
+ sc->sc_nmonvaps++;
++
++
++ /* Driving the HAL in IBSS sometimes adapts the TSF and other timing registers
++ * from received beacons/probes. If that happens, expected TX interrupts may
++ * not occur until next reset. Which triggers the "lost beacon" tasklet.
++ * Resulting effectively in not sending packets for minutes. Because that only
++ * happens in large mesh networks, this mode needs to be activated by a kernel
++ * module parameter: hostap_for_ibss=1. Note that using this mode has side
++ * effects. Such as not supressing beacons/probe answers randomly when
++ * receiving other node beacons. It's recommended to lower the beacon interval
++ * then. When using an IBSS-VAP together with an HOSTAP-VAP, you may also need
++ * to re-trigger IBSS beacon generation after creating the HOSTAP-VAP by
++ * issueing "iwpriv athX bintval 1000".
++ */
++ if ((flags & IEEE80211_NO_STABEACONS) && (ic->ic_opmode == IEEE80211_M_IBSS))
++ sc->sc_opmode = HAL_M_HOSTAP;
++ else
+ /*
+ * Adhoc demo mode is a pseudo mode; to the HAL it's
+ * just IBSS mode and the driver doesn't use management
+@@ -4279,7 +4296,8 @@
+ if (ic->ic_opmode != IEEE80211_M_HOSTAP && (dev->flags & IFF_PROMISC))
+ rfilt |= HAL_RX_FILTER_PROM;
+ if (ic->ic_opmode == IEEE80211_M_STA ||
+- sc->sc_opmode == HAL_M_IBSS || /* NB: AHDEMO too */
++ ic->ic_opmode == IEEE80211_M_IBSS ||
++ ic->ic_opmode == IEEE80211_M_AHDEMO ||
+ (sc->sc_nostabeacons) || sc->sc_scanning ||
+ (ic->ic_opmode == IEEE80211_M_HOSTAP))
+ rfilt |= HAL_RX_FILTER_BEACON;
+@@ -6433,6 +6451,33 @@
+ }
+
+ /*
++ * Advances (forwards/adds) a microsecond value to current chip's TSF registers
++ */
++
++/* from ath_info.c */
++#define AR5K_TSF_L32_5210 0x806c /* TSF (lower 32 bits) */
++#define AR5K_TSF_L32_5211 0x804c
++#define AR5K_TSF_L32 (ar_device(ah->ah_sc->devid) == 5210 ? \
++ AR5K_TSF_L32_5210 : AR5K_TSF_L32_5211)
++
++#define AR5K_TSF_U32_5210 0x8070
++#define AR5K_TSF_U32_5211 0x8050
++#define AR5K_TSF_U32 (ar_device(ah->ah_sc->devid) == 5210 ? \
++ AR5K_TSF_U32_5210 : AR5K_TSF_U32_5211)
++
++static inline void ath_hal_settsf64(struct ath_hal *ah, u_int64_t tsf_adv)
++{
++ ATH_HAL_LOCK_IRQ(ah->ah_sc);
++ ath_hal_set_function(__func__);
++ tsf_adv += ah->ah_getTsf64(ah);
++ OS_REG_WRITE(ah, AR5K_TSF_L32, 0ll);
++ OS_REG_WRITE(ah, AR5K_TSF_U32, (tsf_adv >> 32) & 0xffffffffll);
++ OS_REG_WRITE(ah, AR5K_TSF_L32, (tsf_adv >> 00) & 0xffffffffll);
++ ath_hal_set_function(NULL);
++ ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
++}
++
++/*
+ * Intercept management frames to collect beacon RSSI data and to do
+ * ibss merges. This function is called for all management frames,
+ * including those belonging to other BSS.
+@@ -6485,10 +6530,19 @@
+ DPRINTF(sc, ATH_DEBUG_BEACON,
+ "Updated beacon timers\n");
+ }
+- if ((sc->sc_opmode == HAL_M_IBSS) &&
+- IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid) &&
+- ath_hw_check_atim(sc, 1, vap->iv_bss->ni_intval)) {
+- DPRINTF(sc, ATH_DEBUG_ANY, "Fixed ATIM window after beacon recv\n");
++ if ((vap->iv_opmode == IEEE80211_M_IBSS) &&
++ (sc->sc_opmode == HAL_M_HOSTAP) &&
++ IEEE80211_ADDR_EQ(ni->ni_bssid, vap->iv_bss->ni_bssid)) {
++ /* In this mode, we drive the HAL in HOSTAP mode. Hence
++ * we do the IBSS merging in software. Also do not merge
++ * if the difference it too small. Otherwise we are playing
++ * tsf-pingpong with other vendors drivers */
++ beacon_tsf = le64_to_cpu(ni->ni_tstamp.tsf);
++ if (beacon_tsf > rtsf + 0xffff) {
++ ath_hal_settsf64(sc->sc_ah, beacon_tsf - rtsf);
++ ieee80211_ibss_merge(ni);
++ }
++ break;
+ }
+ /* NB: Fall Through */
+ case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
+@@ -6561,6 +6615,10 @@
+ #endif
+ if (do_merge)
+ ieee80211_ibss_merge(ni);
++
++ if ((sc->sc_opmode == HAL_M_IBSS) &&
++ ath_hw_check_atim(sc, 1, vap->iv_bss->ni_intval))
++ DPRINTF(sc, ATH_DEBUG_ANY, "Fixed ATIM window after beacon recv\n");
+ }
+ break;
+ }
diff --git a/package/madwifi/patches/406-monitor_r3711.patch b/package/madwifi/patches/406-monitor_r3711.patch
index 74004ad2e..1304b97e4 100644
--- a/package/madwifi/patches/406-monitor_r3711.patch
+++ b/package/madwifi/patches/406-monitor_r3711.patch
@@ -1,6 +1,6 @@
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -6409,7 +6409,7 @@
+@@ -6440,7 +6440,7 @@
/* Never copy the SKB, as it is ours on the RX side, and this is the
* last process on the TX side and we only modify our own headers. */
@@ -9,7 +9,7 @@
if (tskb == NULL) {
DPRINTF(sc, ATH_DEBUG_ANY,
"Dropping; ath_skb_removepad failed!\n");
-@@ -6417,6 +6417,8 @@
+@@ -6448,6 +6448,8 @@
}
ieee80211_input_monitor(ic, tskb, bf, tx, tsf, sc);
diff --git a/package/madwifi/patches/408-changeset_r3337.patch b/package/madwifi/patches/408-changeset_r3337.patch
index 5b225650a..8047e2e0f 100644
--- a/package/madwifi/patches/408-changeset_r3337.patch
+++ b/package/madwifi/patches/408-changeset_r3337.patch
@@ -10,7 +10,7 @@
Please let us know if you think your name should be mentioned here!
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
-@@ -3029,7 +3029,7 @@
+@@ -3059,7 +3059,7 @@
struct ath_softc *sc = dev->priv;
struct ath_hal *ah = sc->sc_ah;
struct ieee80211_phy_params *ph = (struct ieee80211_phy_params *)
diff --git a/package/madwifi/patches/450-new_hal.patch b/package/madwifi/patches/450-new_hal.patch
index b9e2454d8..60a7dc33e 100644
--- a/package/madwifi/patches/450-new_hal.patch
+++ b/package/madwifi/patches/450-new_hal.patch
@@ -108,7 +108,7 @@
/*
* Check if the MAC has multi-rate retry support.
* We do this by trying to setup a fake extended
-@@ -7382,7 +7390,7 @@
+@@ -7453,7 +7461,7 @@
if (qtype == HAL_TX_QUEUE_UAPSD)
qi.tqi_qflags = HAL_TXQ_TXDESCINT_ENABLE;
else
--
2.20.1