iwlwifi: tid_data moves to iwl_priv
The transport doesn't need to access it any more.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index f1317a6..e54a4d1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -189,6 +189,69 @@
struct iwl_qosparam_cmd def_qos_parm;
};
+/**
+ * enum iwl_agg_state
+ *
+ * The state machine of the BA agreement establishment / tear down.
+ * These states relate to a specific RA / TID.
+ *
+ * @IWL_AGG_OFF: aggregation is not used
+ * @IWL_AGG_ON: aggregation session is up
+ * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
+ * HW queue to be empty from packets for this RA /TID.
+ * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
+ * HW queue to be empty from packets for this RA /TID.
+ */
+enum iwl_agg_state {
+ IWL_AGG_OFF = 0,
+ IWL_AGG_ON,
+ IWL_EMPTYING_HW_QUEUE_ADDBA,
+ IWL_EMPTYING_HW_QUEUE_DELBA,
+};
+
+/**
+ * struct iwl_ht_agg - aggregation state machine
+
+ * This structs holds the states for the BA agreement establishment and tear
+ * down. It also holds the state during the BA session itself. This struct is
+ * duplicated for each RA / TID.
+
+ * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
+ * Tx response (REPLY_TX), and the block ack notification
+ * (REPLY_COMPRESSED_BA).
+ * @state: state of the BA agreement establishment / tear down.
+ * @txq_id: Tx queue used by the BA session - used by the transport layer.
+ * Needed by the upper layer for debugfs only.
+ * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
+ * the first packet to be sent in legacy HW queue in Tx AGG stop flow.
+ * Basically when next_reclaimed reaches ssn, we can tell mac80211 that
+ * we are ready to finish the Tx AGG stop / start flow.
+ * @wait_for_ba: Expect block-ack before next Tx reply
+ */
+struct iwl_ht_agg {
+ u32 rate_n_flags;
+ enum iwl_agg_state state;
+ u16 txq_id;
+ u16 ssn;
+ bool wait_for_ba;
+};
+
+/**
+ * struct iwl_tid_data - one for each RA / TID
+
+ * This structs holds the states for each RA / TID.
+
+ * @seq_number: the next WiFi sequence number to use
+ * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
+ * This is basically (last acked packet++).
+ * @agg: aggregation state machine
+ */
+struct iwl_tid_data {
+ u16 seq_number;
+ u16 next_reclaimed;
+ struct iwl_ht_agg agg;
+};
+
/*
* Structure should be accessed with sta_lock held. When station addition
* is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
@@ -869,6 +932,7 @@
int num_stations;
struct iwl_station_entry stations[IWLAGN_STATION_COUNT];
unsigned long ucode_key_table;
+ struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
u8 mac80211_registered;