iwlwifi: move RX code to iwl-rx.c

This patch moves partialy rx code into iwl-rx.c as part of iwlcore.
The second part of the code can be merged only with moving of tx
code as well.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/Makefile

 obj-$(CONFIG_IWLCORE)	+= iwlcore.o
 iwlcore-objs 		:= iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
+iwlcore-objs 		+= iwl-rx.o
 iwlcore-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
 iwlcore-$(CONFIG_IWLWIFI_LEDS) += iwl-led.o
 iwlcore-$(CONFIG_IWLWIFI_RFKILL) += iwl-rfkill.o

drivers/net/wireless/iwlwifi/iwl-4965.c

@@ -372,7 +372,7 @@ int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
 	return ret;
 }
 
-static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl4965_rx_queue *rxq)
+static int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 {
 	int ret;
 	unsigned long flags;
@@ -625,7 +625,7 @@ static void iwl4965_nic_config(struct iwl_priv *priv)
 int iwl4965_hw_nic_init(struct iwl_priv *priv)
 {
 	unsigned long flags;
-	struct iwl4965_rx_queue *rxq = &priv->rxq;
+	struct iwl_rx_queue *rxq = &priv->rxq;
 	int ret;
 
 	/* nic_init */
@@ -645,22 +645,22 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv)
 
 	/* Allocate the RX queue, or reset if it is already allocated */
 	if (!rxq->bd) {
-		ret = iwl4965_rx_queue_alloc(priv);
+		ret = iwl_rx_queue_alloc(priv);
 		if (ret) {
 			IWL_ERROR("Unable to initialize Rx queue\n");
 			return -ENOMEM;
 		}
 	} else
-		iwl4965_rx_queue_reset(priv, rxq);
+		iwl_rx_queue_reset(priv, rxq);
 
-	iwl4965_rx_replenish(priv);
+	iwl_rx_replenish(priv);
 
 	iwl4965_rx_init(priv, rxq);
 
 	spin_lock_irqsave(&priv->lock, flags);
 
 	rxq->need_update = 1;
-	iwl4965_rx_queue_update_write_ptr(priv, rxq);
+	iwl_rx_queue_update_write_ptr(priv, rxq);
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -2516,7 +2516,8 @@ static void iwl4965_rx_calc_noise(struct iwl_priv *priv)
 			priv->last_rx_noise);
 }
 
-void iwl4965_hw_rx_statistics(struct iwl_priv *priv, struct iwl4965_rx_mem_buffer *rxb)
+void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
+			      struct iwl_rx_mem_buffer *rxb)
 {
 	struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
 	int change;
@@ -2803,7 +2804,7 @@ static u32 iwl4965_translate_rx_status(u32 decrypt_in)
 
 static void iwl4965_handle_data_packet(struct iwl_priv *priv, int is_data,
 				       int include_phy,
-				       struct iwl4965_rx_mem_buffer *rxb,
+				       struct iwl_rx_mem_buffer *rxb,
 				       struct ieee80211_rx_status *stats)
 {
 	struct iwl4965_rx_packet *pkt = (struct iwl4965_rx_packet *)rxb->skb->data;
@@ -3109,7 +3110,7 @@ static inline void iwl4965_dbg_report_frame(struct iwl_priv *priv,
 /* Called for REPLY_RX (legacy ABG frames), or
  * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
 static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
-				struct iwl4965_rx_mem_buffer *rxb)
+				struct iwl_rx_mem_buffer *rxb)
 {
 	struct ieee80211_hdr *header;
 	struct ieee80211_rx_status rx_status;
@@ -3278,7 +3279,7 @@ static void iwl4965_rx_reply_rx(struct iwl_priv *priv,
 /* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
  * This will be used later in iwl4965_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
 static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
-				    struct iwl4965_rx_mem_buffer *rxb)
+				    struct iwl_rx_mem_buffer *rxb)
 {
 	struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
 	priv->last_phy_res[0] = 1;
@@ -3286,7 +3287,7 @@ static void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
 	       sizeof(struct iwl4965_rx_phy_res));
 }
 static void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
-					   struct iwl4965_rx_mem_buffer *rxb)
+					   struct iwl_rx_mem_buffer *rxb)
 
 {
 #ifdef CONFIG_IWL4965_RUN_TIME_CALIB
@@ -3495,7 +3496,7 @@ static inline int iwl4965_queue_dec_wrap(int index, int n_bd)
  * of frames sent via aggregation.
  */
 static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
-					   struct iwl4965_rx_mem_buffer *rxb)
+					   struct iwl_rx_mem_buffer *rxb)
 {
 	struct iwl4965_rx_packet *pkt = (void *)rxb->skb->data;
 	struct iwl4965_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;

drivers/net/wireless/iwlwifi/iwl-core.h

@@ -173,6 +173,21 @@ int iwl_set_rxon_channel(struct iwl_priv *priv,
 void iwlcore_free_geos(struct iwl_priv *priv);
 int iwl_setup(struct iwl_priv *priv);
 
+/*****************************************************
+* RX
+******************************************************/
+void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
+int iwl_rx_queue_alloc(struct iwl_priv *priv);
+void iwl_rx_handle(struct iwl_priv *priv);
+int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
+				  struct iwl_rx_queue *q);
+void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
+void iwl_rx_replenish(struct iwl_priv *priv);
+/* FIXME: remove when TX is moved to iwl core */
+int iwl_rx_queue_restock(struct iwl_priv *priv);
+int iwl_rx_queue_space(const struct iwl_rx_queue *q);
+void iwl_rx_allocate(struct iwl_priv *priv);
+
 /*****************************************************
  *   S e n d i n g     H o s t     C o m m a n d s   *
  *****************************************************/
@@ -265,4 +280,5 @@ static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 	return priv->cfg->ops->hcmd->rxon_assoc(priv);
 }
 
+
 #endif /* __iwl_core_h__ */

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -91,7 +91,7 @@ extern struct iwl_cfg iwl5350_agn_cfg;
 #define	DEFAULT_SHORT_RETRY_LIMIT 7U
 #define	DEFAULT_LONG_RETRY_LIMIT  4U
 
-struct iwl4965_rx_mem_buffer {
+struct iwl_rx_mem_buffer {
 	dma_addr_t dma_addr;
 	struct sk_buff *skb;
 	struct list_head list;
@@ -358,7 +358,7 @@ struct iwl_host_cmd {
 #define SUP_RATE_11G_MAX_NUM_CHANNELS  12
 
 /**
- * struct iwl4965_rx_queue - Rx queue
+ * struct iwl_rx_queue - Rx queue
  * @processed: Internal index to last handled Rx packet
  * @read: Shared index to newest available Rx buffer
  * @write: Shared index to oldest written Rx packet
@@ -367,13 +367,13 @@ struct iwl_host_cmd {
  * @rx_used: List of Rx buffers with no SKB
  * @need_update: flag to indicate we need to update read/write index
  *
- * NOTE:  rx_free and rx_used are used as a FIFO for iwl4965_rx_mem_buffers
+ * NOTE:  rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
  */
-struct iwl4965_rx_queue {
+struct iwl_rx_queue {
 	__le32 *bd;
 	dma_addr_t dma_addr;
-	struct iwl4965_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
-	struct iwl4965_rx_mem_buffer *queue[RX_QUEUE_SIZE];
+	struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+	struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
 	u32 processed;
 	u32 read;
 	u32 write;
@@ -643,26 +643,20 @@ extern int iwl4965_is_network_packet(struct iwl_priv *priv,
 				 struct ieee80211_hdr *header);
 extern int iwl4965_power_init_handle(struct iwl_priv *priv);
 extern void iwl4965_handle_data_packet_monitor(struct iwl_priv *priv,
-					   struct iwl4965_rx_mem_buffer *rxb,
+					   struct iwl_rx_mem_buffer *rxb,
 					   void *data, short len,
 					   struct ieee80211_rx_status *stats,
 					   u16 phy_flags);
 extern int iwl4965_is_duplicate_packet(struct iwl_priv *priv,
 				       struct ieee80211_hdr *header);
-extern int iwl4965_rx_queue_alloc(struct iwl_priv *priv);
-extern void iwl4965_rx_queue_reset(struct iwl_priv *priv,
-			       struct iwl4965_rx_queue *rxq);
 extern int iwl4965_calc_db_from_ratio(int sig_ratio);
 extern int iwl4965_calc_sig_qual(int rssi_dbm, int noise_dbm);
 extern int iwl4965_tx_queue_init(struct iwl_priv *priv,
 			     struct iwl4965_tx_queue *txq, int count, u32 id);
-extern void iwl4965_rx_replenish(void *data);
 extern void iwl4965_tx_queue_free(struct iwl_priv *priv, struct iwl4965_tx_queue *txq);
 extern unsigned int iwl4965_fill_beacon_frame(struct iwl_priv *priv,
 					struct ieee80211_hdr *hdr,
 					const u8 *dest, int left);
-extern int iwl4965_rx_queue_update_write_ptr(struct iwl_priv *priv,
-					 struct iwl4965_rx_queue *q);
 extern __le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr);
 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
@@ -722,7 +716,7 @@ extern void iwl4965_hw_build_tx_cmd_rate(struct iwl_priv *priv,
 extern int iwl4965_hw_reg_send_txpower(struct iwl_priv *priv);
 extern int iwl4965_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
 extern void iwl4965_hw_rx_statistics(struct iwl_priv *priv,
-				 struct iwl4965_rx_mem_buffer *rxb);
+				 struct iwl_rx_mem_buffer *rxb);
 extern void iwl4965_disable_events(struct iwl_priv *priv);
 extern int iwl4965_get_temperature(const struct iwl_priv *priv);
 
@@ -960,7 +954,7 @@ struct iwl_priv {
 	bool add_radiotap;
 
 	void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
-				       struct iwl4965_rx_mem_buffer *rxb);
+				       struct iwl_rx_mem_buffer *rxb);
 
 	struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
 
@@ -1077,7 +1071,7 @@ struct iwl_priv {
 	int activity_timer_active;
 
 	/* Rx and Tx DMA processing queues */
-	struct iwl4965_rx_queue rxq;
+	struct iwl_rx_queue rxq;
 	struct iwl4965_tx_queue txq[IWL_MAX_NUM_QUEUES];
 	unsigned long txq_ctx_active_msk;
 	struct iwl4965_kw kw;	/* keep warm address */