Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

[cascardo/linux.git] / drivers / net / wireless / iwlwifi / iwl-dev.h

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 69ecf6e..e54a4d1 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -189,6 +189,69 @@ struct iwl_qos_info {
        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
@@ -512,16 +575,6 @@ enum iwl_access_mode {
        IWL_OTP_ACCESS_RELATIVE,
 };
 
-/**
- * enum iwl_pa_type - Power Amplifier type
- * @IWL_PA_SYSTEM:  based on uCode configuration
- * @IWL_PA_INTERNAL: use Internal only
- */
-enum iwl_pa_type {
-       IWL_PA_SYSTEM = 0,
-       IWL_PA_INTERNAL = 1,
-};
-
 /* reply_tx_statistics (for _agn devices) */
 struct reply_tx_error_statistics {
        u32 pp_delay;
@@ -776,7 +829,6 @@ struct iwl_priv {
        struct ieee80211_channel *ieee_channels;
        struct ieee80211_rate *ieee_rates;
        struct kmem_cache *tx_cmd_pool;
-       struct iwl_cfg *cfg;
 
        enum ieee80211_band band;
 
@@ -880,6 +932,7 @@ struct iwl_priv {
        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;