iwlagn: set tx_fifo for ampdu in transport layer

[mv-sheeva.git] / drivers / net / wireless / iwlwifi / iwl-shared.h

diff --git a/drivers/net/wireless/iwlwifi/iwl-shared.h b/drivers/net/wireless/iwlwifi/iwl-shared.h
index db606a6857c2bb8a2538b15a99e725ebfee7e34c..4cfa31e2529dad4fb436d927836cee6c256b3e5f 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-shared.h
+++ b/drivers/net/wireless/iwlwifi/iwl-shared.h
@@ -67,6 +67,7 @@
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/gfp.h>
+#include <net/mac80211.h>
 
 #include "iwl-commands.h"
 
@@ -192,7 +193,6 @@ struct iwl_ht_agg {
 #define IWL_EMPTYING_HW_QUEUE_ADDBA 2
 #define IWL_EMPTYING_HW_QUEUE_DELBA 3
        u8 state;
-       u8 tx_fifo;
 };
 
 struct iwl_tid_data {
@@ -284,6 +284,50 @@ struct iwl_rx_mem_buffer {
 
 #define rxb_addr(r) page_address(r->page)
 
+/*
+ * mac80211 queues, ACs, hardware queues, FIFOs.
+ *
+ * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
+ *
+ * Mac80211 uses the following numbers, which we get as from it
+ * by way of skb_get_queue_mapping(skb):
+ *
+ *     VO      0
+ *     VI      1
+ *     BE      2
+ *     BK      3
+ *
+ *
+ * Regular (not A-MPDU) frames are put into hardware queues corresponding
+ * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
+ * own queue per aggregation session (RA/TID combination), such queues are
+ * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
+ * order to map frames to the right queue, we also need an AC->hw queue
+ * mapping. This is implemented here.
+ *
+ * Due to the way hw queues are set up (by the hw specific modules like
+ * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
+ * mapping.
+ */
+
+static const u8 tid_to_ac[] = {
+       IEEE80211_AC_BE,
+       IEEE80211_AC_BK,
+       IEEE80211_AC_BK,
+       IEEE80211_AC_BE,
+       IEEE80211_AC_VI,
+       IEEE80211_AC_VI,
+       IEEE80211_AC_VO,
+       IEEE80211_AC_VO
+};
+
+enum iwl_rxon_context_id {
+       IWL_RXON_CTX_BSS,
+       IWL_RXON_CTX_PAN,
+
+       NUM_IWL_RXON_CTX
+};
+
 #ifdef CONFIG_PM
 int iwl_suspend(struct iwl_priv *priv);
 int iwl_resume(struct iwl_priv *priv);