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>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
index 01a6d2fc795c..5c30f6b19a7f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-ucode.c
@@ -428,6 +428,7 @@ void iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type)
 int iwlagn_alive_notify(struct iwl_priv *priv)
 {
         const struct queue_to_fifo_ac *queue_to_fifo;
+        struct iwl_rxon_context *ctx;
         u32 a;
         unsigned long flags;
         int i, chan;
@@ -501,6 +502,8 @@ int iwlagn_alive_notify(struct iwl_priv *priv)
         memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
         for (i = 0; i < 4; i++)
                 atomic_set(&priv->queue_stop_count[i], 0);
+        for_each_context(priv, ctx)
+                ctx->last_tx_rejected = false;
 
         /* reset to 0 to enable all the queue first */
         priv->txq_ctx_active_msk = 0;