diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00queue.h')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.h | 48 |
1 files changed, 35 insertions, 13 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 2d3bf843735..d81d85f3486 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -296,7 +296,7 @@ enum txentry_desc_flags { * Summary of information for the frame descriptor before sending a TX frame. * * @flags: Descriptor flags (See &enum queue_entry_flags). - * @queue: Queue identification (See &enum data_queue_qid). + * @qid: Queue identification (See &enum data_queue_qid). * @length: Length of the entire frame. * @header_length: Length of 802.11 header. * @length_high: PLCP length high word. @@ -322,7 +322,7 @@ enum txentry_desc_flags { struct txentry_desc { unsigned long flags; - enum data_queue_qid queue; + enum data_queue_qid qid; u16 length; u16 header_length; @@ -360,9 +360,6 @@ struct txentry_desc { * @ENTRY_OWNER_DEVICE_DATA: This entry is owned by the device for data * transfer (either TX or RX depending on the queue). The entry should * only be touched after the device has signaled it is done with it. - * @ENTRY_OWNER_DEVICE_CRYPTO: This entry is owned by the device for data - * encryption or decryption. The entry should only be touched after - * the device has signaled it is done with it. * @ENTRY_DATA_PENDING: This entry contains a valid frame and is waiting * for the signal to start sending. * @ENTRY_DATA_IO_FAILED: Hardware indicated that an IO error occured @@ -372,7 +369,6 @@ struct txentry_desc { enum queue_entry_flags { ENTRY_BCN_ASSIGNED, ENTRY_OWNER_DEVICE_DATA, - ENTRY_OWNER_DEVICE_CRYPTO, ENTRY_DATA_PENDING, ENTRY_DATA_IO_FAILED }; @@ -405,18 +401,18 @@ struct queue_entry { * * @Q_INDEX: Index pointer to the current entry in the queue, if this entry is * owned by the hardware then the queue is considered to be full. + * @Q_INDEX_DMA_DONE: Index pointer for the next entry which will have been + * transfered to the hardware. * @Q_INDEX_DONE: Index pointer to the next entry which will be completed by * the hardware and for which we need to run the txdone handler. If this * entry is not owned by the hardware the queue is considered to be empty. - * @Q_INDEX_CRYPTO: Index pointer to the next entry which encryption/decription - * will be completed by the hardware next. * @Q_INDEX_MAX: Keep last, used in &struct data_queue to determine the size * of the index array. */ enum queue_index { Q_INDEX, + Q_INDEX_DMA_DONE, Q_INDEX_DONE, - Q_INDEX_CRYPTO, Q_INDEX_MAX, }; @@ -452,13 +448,12 @@ struct data_queue { enum data_queue_qid qid; spinlock_t lock; - unsigned long last_index; - unsigned long last_index_done; unsigned int count; unsigned short limit; unsigned short threshold; unsigned short length; unsigned short index[Q_INDEX_MAX]; + unsigned long last_action[Q_INDEX_MAX]; unsigned short txop; unsigned short aifs; @@ -571,6 +566,22 @@ struct data_queue_desc { queue_loop(__entry, (__dev)->tx, queue_end(__dev)) /** + * rt2x00queue_for_each_entry - Loop through all entries in the queue + * @queue: Pointer to @data_queue + * @start: &enum queue_index Pointer to start index + * @end: &enum queue_index Pointer to end index + * @fn: The function to call for each &struct queue_entry + * + * This will walk through all entries in the queue, in chronological + * order. This means it will start at the current @start pointer + * and will walk through the queue until it reaches the @end pointer. + */ +void rt2x00queue_for_each_entry(struct data_queue *queue, + enum queue_index start, + enum queue_index end, + void (*fn)(struct queue_entry *entry)); + +/** * rt2x00queue_empty - Check if the queue is empty. * @queue: Queue to check if empty. */ @@ -607,12 +618,23 @@ static inline int rt2x00queue_threshold(struct data_queue *queue) } /** - * rt2x00queue_timeout - Check if a timeout occured for this queue + * rt2x00queue_timeout - Check if a timeout occured for STATUS reorts * @queue: Queue to check. */ static inline int rt2x00queue_timeout(struct data_queue *queue) { - return time_after(queue->last_index, queue->last_index_done + (HZ / 10)); + return time_after(queue->last_action[Q_INDEX_DMA_DONE], + queue->last_action[Q_INDEX_DONE] + (HZ / 10)); +} + +/** + * rt2x00queue_timeout - Check if a timeout occured for DMA transfers + * @queue: Queue to check. + */ +static inline int rt2x00queue_dma_timeout(struct data_queue *queue) +{ + return time_after(queue->last_action[Q_INDEX], + queue->last_action[Q_INDEX_DMA_DONE] + (HZ / 10)); } /** |