iwlagn: iwl_tid_data moves to iwl-shared

The rate scaling and the transport need to access the data in
iwl_tid_data, hence the move.

Note that the only component in the upper layer that needs this data
is the rate scaling. Refactoring the rate scaling may help to move
iwl_tid_data from the shared area to the transport area.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h
index 27aee528ce3a..bb61c13d4998 100644
--- a/drivers/net/wireless/iwlwifi/iwl-shared.h
+++ b/drivers/net/wireless/iwlwifi/iwl-shared.h
@@ -68,6 +68,8 @@
 #include <linux/mutex.h>
 #include <linux/gfp.h>
 
+#include "iwl-commands.h"
+
 /*This files includes all the types / functions that are exported by the
  * upper layer to the bus and transport layer */
 
@@ -167,6 +169,34 @@ struct iwl_hw_params {
 };
 
 /**
+ * struct iwl_ht_agg - aggregation status while waiting for block-ack
+ * @txq_id: Tx queue used for Tx attempt
+ * @wait_for_ba: Expect block-ack before next Tx reply
+ * @rate_n_flags: Rate at which Tx was attempted
+ *
+ * If REPLY_TX indicates that aggregation was attempted, driver must wait
+ * for block ack (REPLY_COMPRESSED_BA).  This struct stores tx reply info
+ * until block ack arrives.
+ */
+struct iwl_ht_agg {
+        u16 txq_id;
+        u16 wait_for_ba;
+        u32 rate_n_flags;
+#define IWL_AGG_OFF 0
+#define IWL_AGG_ON 1
+#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
+#define IWL_EMPTYING_HW_QUEUE_DELBA 3
+        u8 state;
+        u8 tx_fifo;
+};
+
+struct iwl_tid_data {
+        u16 seq_number; /* agn only */
+        u16 tfds_in_queue;
+        struct iwl_ht_agg agg;
+};
+
+/**
  * struct iwl_shared - shared fields for all the layers of the driver
  *
  * @dbg_level_dev: dbg level set per device. Prevails on
@@ -200,6 +230,8 @@ struct iwl_shared {
         spinlock_t lock;
         spinlock_t sta_lock;
         struct mutex mutex;
+
+        struct iwl_tid_data tid_data[IWLAGN_STATION_COUNT][IWL_MAX_TID_COUNT];
 };
 
 /*Whatever _m is (iwl_trans, iwl_priv, iwl_bus, these macros will work */