iwlwifi: mvm: close the SP if we send fewer frames than expected in SP
When we have holes in the BA window, there might be frames
that have been ACKed between the read and the right
pointers. This means that these frames won't be scheduled
again by the SCD and the firwmare won't see them.
This invalidates the number of frames we tell the firmware
to send. When we detect this case, tell mac80211 to close
the SP and to send an EOSP so that the firmware can be in
sync.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index 0631cc0..ce1b16a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -303,6 +303,11 @@
* @tt_tx_protection: is thermal throttling enable Tx protection?
* @disable_tx: is tx to this STA disabled?
* @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON)
+ * @sleep_tx_count: the number of frames that we told the firmware to let out
+ * even when that station is asleep. This is useful in case the queue
+ * gets empty before all the frames were sent, which can happen when
+ * we are sending frames from an AMPDU queue and there was a hole in
+ * the BA window. To be used for UAPSD only.
*
* When mac80211 creates a station it reserves some space (hw->sta_data_size)
* in the structure for use by driver. This structure is placed in that
@@ -329,6 +334,7 @@
bool disable_tx;
u8 agg_tids;
+ u8 sleep_tx_count;
};
static inline struct iwl_mvm_sta *