iwlagn: fix radar frame rejection
The microcode may sometimes reject TX frames when
on a radar channel even after we associated as it
clears information during association and needs to
receive a new beacon before allowing that channel
again. This manifests itself as a TX status value
of TX_STATUS_FAIL_PASSIVE_NO_RX. So in this case,
stop the corresponding queue and give the frame
back to mac80211 for retransmission. We start the
queue again when a beacon from the AP is received
which will make the regulatory enforcement in the
device allow transmitting again.
Signed-off-by: Garen Tamrazian <garenx.tamrazian@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index 5da5761..9309ff2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -131,6 +131,19 @@
ieee80211_stop_queue(priv->hw, ac);
}
+static inline void iwl_wake_any_queue(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx)
+{
+ u8 ac;
+
+ for (ac = 0; ac < AC_NUM; ac++) {
+ IWL_DEBUG_INFO(priv, "Queue Status: Q[%d] %s\n",
+ ac, (atomic_read(&priv->queue_stop_count[ac]) > 0)
+ ? "stopped" : "awake");
+ iwl_wake_queue(priv, &priv->txq[ctx->ac_to_queue[ac]]);
+ }
+}
+
#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue