diff options
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00lib.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00mac.c | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00pci.c | 43 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00pci.h | 11 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00queue.c | 37 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 57 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.h | 11 |
8 files changed, 85 insertions, 85 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 2f79336297c..c7da3c25237 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -546,8 +546,7 @@ struct rt2x00lib_ops { void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev, struct sk_buff *skb, struct txentry_desc *txdesc); - int (*write_tx_data) (struct rt2x00_dev *rt2x00dev, - struct data_queue *queue, struct sk_buff *skb); + int (*write_tx_data) (struct queue_entry *entry); int (*get_tx_data_len) (struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev, diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h index c4ce534e3cd..558f45bf27e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00lib.h +++ b/drivers/net/wireless/rt2x00/rt2x00lib.h @@ -101,6 +101,7 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, /* * Queue handlers. */ +int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb); void rt2x00queue_init_rx(struct rt2x00_dev *rt2x00dev); void rt2x00queue_init_tx(struct rt2x00_dev *rt2x00dev); int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev); diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 97d9095037b..e7f544c404b 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -89,7 +89,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev, memset(skbdesc, 0, sizeof(*skbdesc)); skbdesc->flags |= FRAME_DESC_DRIVER_GENERATED; - if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb)) { + if (rt2x00queue_write_tx_frame(queue, skb)) { WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n"); return NETDEV_TX_BUSY; } @@ -158,7 +158,7 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } } - if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, queue, skb)) { + if (rt2x00queue_write_tx_frame(queue, skb)) { ieee80211_stop_queue(rt2x00dev->hw, qid); return NETDEV_TX_BUSY; } @@ -166,9 +166,6 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (rt2x00queue_full(queue)) ieee80211_stop_queue(rt2x00dev->hw, qid); - if (rt2x00dev->ops->lib->kick_tx_queue) - rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, qid); - return NETDEV_TX_OK; } EXPORT_SYMBOL_GPL(rt2x00mac_tx); diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c index 70a3d135f64..a6bac75de9f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.c +++ b/drivers/net/wireless/rt2x00/rt2x00pci.c @@ -34,52 +34,40 @@ /* * TX data handlers. */ -int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_queue *queue, struct sk_buff *skb) +int rt2x00pci_write_tx_data(struct queue_entry *entry) { - struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); struct queue_entry_priv_pci *entry_priv = entry->priv_data; struct skb_frame_desc *skbdesc; - struct txentry_desc txdesc; u32 word; - if (rt2x00queue_full(queue)) - return -EINVAL; - rt2x00_desc_read(entry_priv->desc, 0, &word); - if (rt2x00_get_field32(word, TXD_ENTRY_OWNER_NIC) || - rt2x00_get_field32(word, TXD_ENTRY_VALID)) { - ERROR(rt2x00dev, - "Arrived at non-free entry in the non-full queue %d.\n" + /* + * This should not happen, we already checked the entry + * was ours. When the hardware disagrees there has been + * a queue corruption! + */ + if (unlikely(rt2x00_get_field32(word, TXD_ENTRY_OWNER_NIC) || + rt2x00_get_field32(word, TXD_ENTRY_VALID))) { + ERROR(entry->queue->rt2x00dev, + "Corrupt queue %d, accessing entry which is not ours.\n" "Please file bug report to %s.\n", entry->queue->qid, DRV_PROJECT); return -EINVAL; } /* - * Copy all TX descriptor information into txdesc, - * after that we are free to use the skb->cb array - * for our information. - */ - entry->skb = skb; - rt2x00queue_create_tx_descriptor(entry, &txdesc); - - /* * Fill in skb descriptor */ - skbdesc = get_skb_frame_desc(skb); + skbdesc = get_skb_frame_desc(entry->skb); memset(skbdesc, 0, sizeof(*skbdesc)); - skbdesc->data = skb->data; - skbdesc->data_len = skb->len; + skbdesc->data = entry->skb->data; + skbdesc->data_len = entry->skb->len; skbdesc->desc = entry_priv->desc; - skbdesc->desc_len = queue->desc_size; + skbdesc->desc_len = entry->queue->desc_size; skbdesc->entry = entry; - memcpy(entry_priv->data, skb->data, skb->len); - - rt2x00queue_write_tx_descriptor(entry, &txdesc); - rt2x00queue_index_inc(queue, Q_INDEX); + memcpy(entry_priv->data, entry->skb->data, entry->skb->len); return 0; } @@ -178,6 +166,7 @@ void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry, 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); /* diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.h b/drivers/net/wireless/rt2x00/rt2x00pci.h index 37c851e442c..87c4a0cd78d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.h +++ b/drivers/net/wireless/rt2x00/rt2x00pci.h @@ -87,11 +87,14 @@ rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev, memcpy_toio(rt2x00dev->csr.base + offset, value, length); } -/* - * TX data handlers. +/** + * rt2x00pci_write_tx_data - Initialize data for TX operation + * @entry: The entry where the frame is located + * + * This function will initialize the DMA and skb descriptor + * to prepare the entry for the actual TX operation. */ -int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_queue *queue, struct sk_buff *skb); +int rt2x00pci_write_tx_data(struct queue_entry *entry); /** * struct queue_entry_priv_pci: Per entry PCI specific information diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c index 6f3aa0f71f9..f875b7ab09f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c @@ -188,6 +188,43 @@ void rt2x00queue_write_tx_descriptor(struct queue_entry *entry, } EXPORT_SYMBOL_GPL(rt2x00queue_write_tx_descriptor); +int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb) +{ + struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); + struct txentry_desc txdesc; + + if (unlikely(rt2x00queue_full(queue))) + return -EINVAL; + + if (__test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) { + ERROR(queue->rt2x00dev, + "Arrived at non-free entry in the non-full queue %d.\n" + "Please file bug report to %s.\n", + queue->qid, DRV_PROJECT); + return -EINVAL; + } + + /* + * Copy all TX descriptor information into txdesc, + * after that we are free to use the skb->cb array + * for our information. + */ + entry->skb = skb; + rt2x00queue_create_tx_descriptor(entry, &txdesc); + + if (unlikely(queue->rt2x00dev->ops->lib->write_tx_data(entry))) { + __clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); + return -EIO; + } + + __set_bit(ENTRY_DATA_PENDING, &entry->flags); + + rt2x00queue_index_inc(queue, Q_INDEX); + rt2x00queue_write_tx_descriptor(entry, &txdesc); + + return 0; +} + struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev, const enum data_queue_qid queue) { diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index cdac9280fe4..fdf505beb79 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -173,71 +173,42 @@ static void rt2x00usb_interrupt_txdone(struct urb *urb) ieee80211_wake_queue(rt2x00dev->hw, qid); } -int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_queue *queue, struct sk_buff *skb) +int rt2x00usb_write_tx_data(struct queue_entry *entry) { + struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev; struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev); - struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX); struct queue_entry_priv_usb *entry_priv = entry->priv_data; struct skb_frame_desc *skbdesc; - struct txentry_desc txdesc; u32 length; - if (rt2x00queue_full(queue)) - return -EINVAL; - - if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) { - ERROR(rt2x00dev, - "Arrived at non-free entry in the non-full queue %d.\n" - "Please file bug report to %s.\n", - entry->queue->qid, DRV_PROJECT); - return -EINVAL; - } - - /* - * Copy all TX descriptor information into txdesc, - * after that we are free to use the skb->cb array - * for our information. - */ - entry->skb = skb; - rt2x00queue_create_tx_descriptor(entry, &txdesc); - /* * Add the descriptor in front of the skb. */ - skb_push(skb, queue->desc_size); - memset(skb->data, 0, queue->desc_size); + skb_push(entry->skb, entry->queue->desc_size); + memset(entry->skb->data, 0, entry->queue->desc_size); /* * Fill in skb descriptor */ - skbdesc = get_skb_frame_desc(skb); + skbdesc = get_skb_frame_desc(entry->skb); memset(skbdesc, 0, sizeof(*skbdesc)); - skbdesc->data = skb->data + queue->desc_size; - skbdesc->data_len = skb->len - queue->desc_size; - skbdesc->desc = skb->data; - skbdesc->desc_len = queue->desc_size; + skbdesc->data = entry->skb->data + entry->queue->desc_size; + skbdesc->data_len = entry->skb->len - entry->queue->desc_size; + skbdesc->desc = entry->skb->data; + skbdesc->desc_len = entry->queue->desc_size; skbdesc->entry = entry; - rt2x00queue_write_tx_descriptor(entry, &txdesc); - /* * USB devices cannot blindly pass the skb->len as the * length of the data to usb_fill_bulk_urb. Pass the skb * to the driver to determine what the length should be. */ - length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, skb); - - /* - * Initialize URB and send the frame to the device. - */ - __set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags); - __set_bit(ENTRY_DATA_PENDING, &entry->flags); + length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, entry->skb); - usb_fill_bulk_urb(entry_priv->urb, usb_dev, usb_sndbulkpipe(usb_dev, 1), - skb->data, length, rt2x00usb_interrupt_txdone, entry); - - rt2x00queue_index_inc(queue, Q_INDEX); + usb_fill_bulk_urb(entry_priv->urb, usb_dev, + usb_sndbulkpipe(usb_dev, 1), + entry->skb->data, length, + rt2x00usb_interrupt_txdone, entry); return 0; } diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index 460d32c444d..b1187c812e7 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -212,11 +212,14 @@ static inline int rt2x00usb_eeprom_read(struct rt2x00_dev *rt2x00dev, */ void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev); -/* - * TX data handlers. +/** + * rt2x00usb_write_tx_data - Initialize URB for TX operation + * @entry: The entry where the frame is located + * + * This function will initialize the URB and skb descriptor + * to prepare the entry for the actual TX operation. */ -int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev, - struct data_queue *queue, struct sk_buff *skb); +int rt2x00usb_write_tx_data(struct queue_entry *entry); /** * struct queue_entry_priv_usb: Per entry USB specific information |