diff options
| author | Gertjan van Wingerde <gwingerde@kpnplanet.nl> | 2008-06-16 19:56:31 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-26 16:49:16 -0400 |
| commit | c4da004857056e6ee034c4110ccdcba659077b7e (patch) | |
| tree | 641f8d9ddab7b8b6ba41fefc57a517abce15e8e6 /drivers/net/wireless/rt2x00/rt2x00.h | |
| parent | 30caa6e3d586442f7c3ad081260ee1b22bb123de (diff) | |
rt2x00: Replace statically allocated DMA buffers with mapped skb's.
The current PCI drivers require a lot of pre-allocated DMA buffers. Reduce this
by using dynamically mapped skb's (using pci_map_single) instead of the pre-
allocated DMA buffers that are allocated at device start-up time.
At the same time move common RX path code into rt2x00lib from rt2x00pci and
rt2x00usb, as the RX paths now are now almost the same.
Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 08e8b0a005a6..28c9026bb568 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -601,6 +601,7 @@ enum rt2x00_flags { DRIVER_REQUIRE_BEACON_GUARD, DRIVER_REQUIRE_ATIM_QUEUE, DRIVER_REQUIRE_SCHEDULED, + DRIVER_REQUIRE_DMA, /* * Driver configuration @@ -899,16 +900,33 @@ static inline u16 get_duration_res(const unsigned int size, const u8 rate) } /** - * rt2x00queue_alloc_skb - allocate a skb. + * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes. + * @rt2x00dev: Pointer to &struct rt2x00_dev. * @queue: The queue for which the skb will be applicable. */ -struct sk_buff *rt2x00queue_alloc_skb(struct data_queue *queue); +struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev, + struct queue_entry *entry); + +/** + * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes. + * @rt2x00dev: Pointer to &struct rt2x00_dev. + * @skb: The skb to map. + */ +void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); + +/** + * rt2x00queue_unmap_skb - Unmap a skb from DMA. + * @rt2x00dev: Pointer to &struct rt2x00_dev. + * @skb: The skb to unmap. + */ +void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); /** * rt2x00queue_free_skb - free a skb + * @rt2x00dev: Pointer to &struct rt2x00_dev. * @skb: The skb to free. */ -void rt2x00queue_free_skb(struct sk_buff *skb); +void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); /** * rt2x00queue_create_tx_descriptor - Create TX descriptor from mac80211 input @@ -977,8 +995,8 @@ void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index); void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev); void rt2x00lib_txdone(struct queue_entry *entry, struct txdone_entry_desc *txdesc); -void rt2x00lib_rxdone(struct queue_entry *entry, - struct rxdone_entry_desc *rxdesc); +void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev, + struct queue_entry *entry); /* * mac80211 handlers. |