tx.c File Reference

#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include "iwl-debug.h"
#include "iwl-csr.h"
#include "iwl-prph.h"
#include "iwl-io.h"
#include "iwl-op-mode.h"
#include "internal.h"
#include "dvm/commands.h"

Go to the source code of this file.

Macros
#define	IWL_TX_CRC_SIZE   4
#define	IWL_TX_DELIMITER_SIZE   4
#define	HOST_COMPLETE_TIMEOUT   (2 * HZ)

Functions
void	iwl_trans_txq_update_byte_cnt_tbl (struct iwl_trans *trans, struct iwl_tx_queue *txq, u16 byte_cnt)
void	iwl_txq_update_write_ptr (struct iwl_trans *trans, struct iwl_tx_queue *txq)
void	iwl_txq_free_tfd (struct iwl_trans *trans, struct iwl_tx_queue *txq, enum dma_data_direction dma_dir)
int	iwlagn_txq_attach_buf_to_tfd (struct iwl_trans *trans, struct iwl_tx_queue *txq, dma_addr_t addr, u16 len, u8 reset)
int	iwl_queue_space (const struct iwl_queue *q)
int	iwl_queue_init (struct iwl_queue *q, int count, int slots_num, u32 id)
void	iwl_trans_pcie_txq_enable (struct iwl_trans *trans, int txq_id, int fifo, int sta_id, int tid, int frame_limit, u16 ssn)
void	iwl_trans_pcie_txq_disable (struct iwl_trans *trans, int txq_id)
void	iwl_tx_cmd_complete (struct iwl_trans *trans, struct iwl_rx_cmd_buffer *rxb, int handler_status)
int	iwl_trans_pcie_send_cmd (struct iwl_trans *trans, struct iwl_host_cmd *cmd)
int	iwl_tx_queue_reclaim (struct iwl_trans *trans, int txq_id, int index, struct sk_buff_head *skbs)

Macro Definition Documentation

#define HOST_COMPLETE_TIMEOUT   (2 * HZ)

Definition at line 787 of file tx.c.

#define IWL_TX_CRC_SIZE   4

Definition at line 42 of file tx.c.

#define IWL_TX_DELIMITER_SIZE   4

Definition at line 43 of file tx.c.

Function Documentation

int iwl_queue_init	(	struct iwl_queue *	q,
		int	count,
		int	slots_num,
		u32	id
	)

iwl_queue_init - Initialize queue's high/low-water and read/write indexes

Definition at line 328 of file tx.c.

int iwl_queue_space

(

const struct iwl_queue *

q

)

Definition at line 309 of file tx.c.

int iwl_trans_pcie_send_cmd	(	struct iwl_trans *	trans,
		struct iwl_host_cmd *	cmd
	)

Definition at line 896 of file tx.c.

void iwl_trans_pcie_txq_disable	(	struct iwl_trans *	trans,
		int	txq_id
	)

Definition at line 480 of file tx.c.

void iwl_trans_pcie_txq_enable	(	struct iwl_trans *	trans,
		int	txq_id,
		int	fifo,
		int	sta_id,
		int	tid,
		int	frame_limit,
		u16	ssn
	)

Definition at line 418 of file tx.c.

void iwl_trans_txq_update_byte_cnt_tbl	(	struct iwl_trans *	trans,
		struct iwl_tx_queue *	txq,
		u16	byte_cnt
	)

iwl_trans_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array

Definition at line 48 of file tx.c.

void iwl_tx_cmd_complete	(	struct iwl_trans *	trans,
		struct iwl_rx_cmd_buffer *	rxb,
		int	handler_status
	)

iwl_tx_cmd_complete - Pull unused buffers off the queue and reclaim them : Rx buffer to reclaim : return value of the handler of the command (put in setup_rx_handlers)

If an Rx buffer has an async callback associated with it the callback will be executed. The attached skb (if present) will only be freed if the callback returns 1

Definition at line 723 of file tx.c.

int iwl_tx_queue_reclaim	(	struct iwl_trans *	trans,
		int	txq_id,
		int	index,
		struct sk_buff_head *	skbs
	)

Definition at line 905 of file tx.c.

void iwl_txq_free_tfd	(	struct iwl_trans *	trans,
		struct iwl_tx_queue *	txq,
		enum dma_data_direction	dma_dir
	)

iwl_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr] - transport private data - tx queue - the direction of the DMA mapping

Does NOT advance any TFD circular buffer read/write indexes Does NOT free the TFD itself (which is within circular buffer)

Definition at line 218 of file tx.c.

void iwl_txq_update_write_ptr	(	struct iwl_trans *	trans,
		struct iwl_tx_queue *	txq
	)

iwl_txq_update_write_ptr - Send new write index to hardware

Definition at line 94 of file tx.c.

int iwlagn_txq_attach_buf_to_tfd	(	struct iwl_trans *	trans,
		struct iwl_tx_queue *	txq,
		dma_addr_t	addr,
		u16	len,
		u8	reset
	)

Definition at line 250 of file tx.c.