* Fill in skb descriptor
*/
skbdesc = get_skb_frame_desc(entry->skb);
- memset(skbdesc, 0, sizeof(*skbdesc));
skbdesc->desc = entry_priv->desc;
skbdesc->desc_len = entry->queue->desc_size;
- skbdesc->entry = entry;
-
- memcpy(entry_priv->data, entry->skb->data, entry->skb->len);
return 0;
}
/*
* TX/RX data handlers.
*/
-static void rt2x00pci_rxdone_entry(struct rt2x00_dev *rt2x00dev,
- struct queue_entry *entry)
-{
- struct sk_buff *skb;
- struct skb_frame_desc *skbdesc;
- struct rxdone_entry_desc rxdesc;
- struct queue_entry_priv_pci *entry_priv = entry->priv_data;
-
- /*
- * Allocate a new sk_buffer. If no new buffer available, drop the
- * received frame and reuse the existing buffer.
- */
- skb = rt2x00queue_alloc_skb(entry->queue);
- if (!skb)
- return;
-
- /*
- * Extract the RXD details.
- */
- memset(&rxdesc, 0, sizeof(rxdesc));
- rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
-
- /*
- * Copy the received data to the entries' skb.
- */
- memcpy(entry->skb->data, entry_priv->data, rxdesc.size);
- skb_trim(entry->skb, rxdesc.size);
-
- /*
- * Fill in skb descriptor
- */
- skbdesc = get_skb_frame_desc(entry->skb);
- memset(skbdesc, 0, sizeof(*skbdesc));
- skbdesc->desc = entry_priv->desc;
- skbdesc->desc_len = entry->queue->desc_size;
- skbdesc->entry = entry;
-
- /*
- * Send the frame to rt2x00lib for further processing.
- */
- rt2x00lib_rxdone(entry, &rxdesc);
-
- /*
- * Replace the entries' skb with the newly allocated one.
- */
- entry->skb = skb;
-}
-
void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
{
struct data_queue *queue = rt2x00dev->rx;
struct queue_entry *entry;
struct queue_entry_priv_pci *entry_priv;
+ struct skb_frame_desc *skbdesc;
u32 word;
while (1) {
if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC))
break;
- rt2x00pci_rxdone_entry(rt2x00dev, entry);
-
- if (test_bit(DEVICE_ENABLED_RADIO, &queue->rt2x00dev->flags)) {
- rt2x00_set_field32(&word, RXD_ENTRY_OWNER_NIC, 1);
- rt2x00_desc_write(entry_priv->desc, 0, word);
- }
-
- rt2x00queue_index_inc(queue, Q_INDEX);
+ /*
+ * Fill in desc fields of the skb descriptor
+ */
+ skbdesc = get_skb_frame_desc(entry->skb);
+ skbdesc->desc = entry_priv->desc;
+ skbdesc->desc_len = entry->queue->desc_size;
+
+ /*
+ * Send the frame to rt2x00lib for further processing.
+ */
+ rt2x00lib_rxdone(rt2x00dev, entry);
}
}
EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
-void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry,
- struct txdone_entry_desc *txdesc)
-{
- struct queue_entry_priv_pci *entry_priv = entry->priv_data;
- enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
- u32 word;
-
- rt2x00lib_txdone(entry, txdesc);
-
- /*
- * Make this entry available for reuse.
- */
- entry->flags = 0;
-
- rt2x00_desc_read(entry_priv->desc, 0, &word);
- rt2x00_set_field32(&word, TXD_ENTRY_OWNER_NIC, 0);
- rt2x00_set_field32(&word, TXD_ENTRY_VALID, 0);
- rt2x00_desc_write(entry_priv->desc, 0, word);
-
- __clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
- rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
-
- /*
- * If the data queue was below the threshold before the txdone
- * handler we must make sure the packet queue in the mac80211 stack
- * is reenabled when the txdone handler has finished.
- */
- if (!rt2x00queue_threshold(entry->queue))
- ieee80211_wake_queue(rt2x00dev->hw, qid);
-
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_txdone);
-
/*
* Device initialization handlers.
*/
-#define desc_size(__queue) \
-({ \
- ((__queue)->limit * (__queue)->desc_size);\
-})
-
-#define data_size(__queue) \
-({ \
- ((__queue)->limit * (__queue)->data_size);\
-})
-
-#define dma_size(__queue) \
-({ \
- data_size(__queue) + desc_size(__queue);\
-})
-
-#define desc_offset(__queue, __base, __i) \
-({ \
- (__base) + data_size(__queue) + \
- ((__i) * (__queue)->desc_size); \
-})
-
-#define data_offset(__queue, __base, __i) \
-({ \
- (__base) + \
- ((__i) * (__queue)->data_size); \
-})
-
static int rt2x00pci_alloc_queue_dma(struct rt2x00_dev *rt2x00dev,
struct data_queue *queue)
{
/*
* Allocate DMA memory for descriptor and buffer.
*/
- addr = dma_alloc_coherent(rt2x00dev->dev, dma_size(queue), &dma,
- GFP_KERNEL | GFP_DMA);
+ addr = dma_alloc_coherent(rt2x00dev->dev,
+ queue->limit * queue->desc_size,
+ &dma, GFP_KERNEL | GFP_DMA);
if (!addr)
return -ENOMEM;
- memset(addr, 0, dma_size(queue));
+ memset(addr, 0, queue->limit * queue->desc_size);
/*
* Initialize all queue entries to contain valid addresses.
*/
for (i = 0; i < queue->limit; i++) {
entry_priv = queue->entries[i].priv_data;
- entry_priv->desc = desc_offset(queue, addr, i);
- entry_priv->desc_dma = desc_offset(queue, dma, i);
- entry_priv->data = data_offset(queue, addr, i);
- entry_priv->data_dma = data_offset(queue, dma, i);
+ entry_priv->desc = addr + i * queue->desc_size;
+ entry_priv->desc_dma = dma + i * queue->desc_size;
}
return 0;
struct queue_entry_priv_pci *entry_priv =
queue->entries[0].priv_data;
- if (entry_priv->data)
- dma_free_coherent(rt2x00dev->dev, dma_size(queue),
- entry_priv->data, entry_priv->data_dma);
- entry_priv->data = NULL;
+ if (entry_priv->desc)
+ dma_free_coherent(rt2x00dev->dev,
+ queue->limit * queue->desc_size,
+ entry_priv->desc, entry_priv->desc_dma);
+ entry_priv->desc = NULL;
}
int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
git.openpandora.org / pandora-kernel.git / blobdiff