Currently, there are problems with how ANI is handled in
multi-VIF scenarios. This patch addresses them by unifying
the start/stop logic.
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ath9k.h | 4 ++-
drivers/net/wireless/ath/ath9k/debug.c | 5 ++-
drivers/net/wireless/ath/ath9k/link.c | 57 +++++++++++++++++++++++++++++-----
drivers/net/wireless/ath/ath9k/main.c | 29 +++++++----------
4 files changed, 67 insertions(+), 28 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 42883e9..7323c3f 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -444,7 +444,9 @@ void ath_rx_poll(unsigned long data);
void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon);
void ath_paprd_calibrate(struct work_struct *work);
void ath_ani_calibrate(unsigned long data);
-void ath_start_ani(struct ath_common *common);
+void ath_start_ani(struct ath_softc *sc);
+void ath_stop_ani(struct ath_softc *sc);
+void ath_check_ani(struct ath_softc *sc);
int ath_update_survey_stats(struct ath_softc *sc);
void ath_update_survey_nf(struct ath_softc *sc, int channel);
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 5c3192f..33b0689 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -206,10 +206,9 @@ static ssize_t write_file_disable_ani(struct file *file,
if (disable_ani) {
clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
- del_timer_sync(&common->ani.timer);
+ ath_stop_ani(sc);
} else {
- set_bit(SC_OP_ANI_RUN, &sc->sc_flags);
- ath_start_ani(common);
+ ath_check_ani(sc);
}
return count;
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index 91650fe..7af32b1 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -432,26 +432,69 @@ set_timer:
}
}
-void ath_start_ani(struct ath_common *common)
+void ath_start_ani(struct ath_softc *sc)
{
- struct ath_hw *ah = common->ah;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
unsigned long timestamp = jiffies_to_msecs(jiffies);
- struct ath_softc *sc = (struct ath_softc *) common->priv;
- if (!test_bit(SC_OP_ANI_RUN, &sc->sc_flags))
- return;
-
- if (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
+ if (common->disable_ani ||
+ !test_bit(SC_OP_ANI_RUN, &sc->sc_flags) ||
+ (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
return;
common->ani.longcal_timer = timestamp;
common->ani.shortcal_timer = timestamp;
common->ani.checkani_timer = timestamp;
+ ath_dbg(common, ANI, "Starting ANI\n");
mod_timer(&common->ani.timer,
jiffies + msecs_to_jiffies((u32)ah->config.ani_poll_interval));
}
+void ath_stop_ani(struct ath_softc *sc)
+{
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+
+ ath_dbg(common, ANI, "Stopping ANI\n");
+ del_timer_sync(&common->ani.timer);
+}
+
+void ath_check_ani(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
+
+ /*
+ * Check for the various conditions in which ANI has to
+ * be stopped.
+ */
+ if (ah->opmode == NL80211_IFTYPE_ADHOC) {
+ if (!cur_conf->enable_beacon)
+ goto stop_ani;
+ } else if (ah->opmode == NL80211_IFTYPE_AP) {
+ if (!cur_conf->enable_beacon) {
+ /*
+ * Disable ANI only when there are no
+ * associated stations.
+ */
+ if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
+ goto stop_ani;
+ }
+ } else if (ah->opmode == NL80211_IFTYPE_STATION) {
+ if (!test_bit(SC_OP_PRIM_STA_VIF, &sc->sc_flags))
+ goto stop_ani;
+ }
+
+ set_bit(SC_OP_ANI_RUN, &sc->sc_flags);
+ ath_start_ani(sc);
+ return;
+
+stop_ani:
+ clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
+ ath_stop_ani(sc);
+}
+
void ath_update_survey_nf(struct ath_softc *sc, int channel)
{
struct ath_hw *ah = sc->sc_ah;
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 263f4e3..512d719 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -167,8 +167,6 @@ static void ath_cancel_work(struct ath_softc *sc)
static void ath_restart_work(struct ath_softc *sc)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-
ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0);
if (AR_SREV_9340(sc->sc_ah) || AR_SREV_9485(sc->sc_ah) ||
@@ -177,21 +175,18 @@ static void ath_restart_work(struct ath_softc *sc)
msecs_to_jiffies(ATH_PLL_WORK_INTERVAL));
ath_start_rx_poll(sc, 3);
-
- if (!common->disable_ani)
- ath_start_ani(common);
+ ath_start_ani(sc);
}
static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush)
{
struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
bool ret = true;
ieee80211_stop_queues(sc->hw);
sc->hw_busy_count = 0;
- del_timer_sync(&common->ani.timer);
+ ath_stop_ani(sc);
del_timer_sync(&sc->rx_poll_timer);
ath9k_debug_samp_bb_mac(sc);
@@ -1453,6 +1448,11 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_bss_conf *bss_conf,
u32 changed)
{
+#define CHECK_ANI \
+ (BSS_CHANGED_ASSOC | \
+ BSS_CHANGED_IBSS | \
+ BSS_CHANGED_BEACON_ENABLED)
+
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
@@ -1491,16 +1491,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
common->curaid = bss_conf->aid;
ath9k_hw_write_associd(sc->sc_ah);
-
- if (bss_conf->ibss_joined) {
- if (!common->disable_ani) {
- set_bit(SC_OP_ANI_RUN, &sc->sc_flags);
- ath_start_ani(common);
- }
- } else {
- clear_bit(SC_OP_ANI_RUN, &sc->sc_flags);
- del_timer_sync(&common->ani.timer);
- }
}
if ((changed & BSS_CHANGED_BEACON) ||
@@ -1531,8 +1521,13 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
}
}
+ if (changed & CHECK_ANI)
+ ath_check_ani(sc);
+
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
+
+#undef CHECK_ANI
}
static u64 ath9k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
--
1.7.11.1
--
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