[rt2x00-users] [PATCH 6/9] rt2x00: Push beacon TX descriptor writing to drivers.

Gertjan van Wingerde gwingerde at gmail.com
Wed May 12 07:51:42 AEST 2010


Not all the devices require a TX descriptor to be written (i.e. rt2800
device don't require them). Push down the creation of the TX descriptor
to the device drivers so that they can decide for themselves whether
a TX descriptor is to be created.

Signed-off-by: Gertjan van Wingerde <gwingerde at gmail.com>
---
 drivers/net/wireless/rt2x00/rt2400pci.c   |   16 ++++++++++------
 drivers/net/wireless/rt2x00/rt2500pci.c   |   16 ++++++++++------
 drivers/net/wireless/rt2x00/rt2500usb.c   |   11 +++++++++++
 drivers/net/wireless/rt2x00/rt2800pci.c   |   17 +++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800usb.c   |   17 +++++++++++++++++
 drivers/net/wireless/rt2x00/rt2x00debug.c |    1 +
 drivers/net/wireless/rt2x00/rt2x00queue.c |   10 +---------
 drivers/net/wireless/rt2x00/rt61pci.c     |   11 +++++++++++
 drivers/net/wireless/rt2x00/rt73usb.c     |   11 +++++++++++
 9 files changed, 89 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index def3fa4..741c531 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -33,6 +33,7 @@
 #include <linux/eeprom_93cx6.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00pci.h"
 #include "rt2400pci.h"
 
@@ -1074,9 +1075,6 @@ static void rt2400pci_write_beacon(struct queue_entry *entry,
 				   struct txentry_desc *txdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	u32 word;
 	u32 reg;
 
 	/*
@@ -1089,9 +1087,15 @@ static void rt2400pci_write_beacon(struct queue_entry *entry,
 
 	rt2x00queue_map_txskb(rt2x00dev, entry->skb);
 
-	rt2x00_desc_read(entry_priv->desc, 1, &word);
-	rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
-	rt2x00_desc_write(entry_priv->desc, 1, word);
+	/*
+	 * Write the TX descriptor for the beacon.
+	 */
+	rt2400pci_write_tx_desc(rt2x00dev, entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
 
 	/*
 	 * Enable beaconing again.
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 070c23e..4dc101e 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -33,6 +33,7 @@
 #include <linux/eeprom_93cx6.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00pci.h"
 #include "rt2500pci.h"
 
@@ -1231,9 +1232,6 @@ static void rt2500pci_write_beacon(struct queue_entry *entry,
 				   struct txentry_desc *txdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	u32 word;
 	u32 reg;
 
 	/*
@@ -1246,9 +1244,15 @@ static void rt2500pci_write_beacon(struct queue_entry *entry,
 
 	rt2x00queue_map_txskb(rt2x00dev, entry->skb);
 
-	rt2x00_desc_read(entry_priv->desc, 1, &word);
-	rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
-	rt2x00_desc_write(entry_priv->desc, 1, word);
+	/*
+	 * Write the TX descriptor for the beacon.
+	 */
+	rt2500pci_write_tx_desc(rt2x00dev, entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
 
 	/*
 	 * Enable beaconing again.
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index b985d8f..4911d1a 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -32,6 +32,7 @@
 #include <linux/usb.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00usb.h"
 #include "rt2500usb.h"
 
@@ -1107,6 +1108,16 @@ static void rt2500usb_write_beacon(struct queue_entry *entry,
 	rt2500usb_register_write(rt2x00dev, TXRX_CSR19, reg);
 
 	/*
+	 * Write the TX descriptor for the beacon.
+	 */
+	rt2500usb_write_tx_desc(rt2x00dev, entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
+
+	/*
 	 * Take the descriptor in front of the skb into account.
 	 */
 	skb_push(entry->skb, TXD_DESC_SIZE);
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index b2f2327..fcca30c 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -42,6 +42,7 @@
 #include <linux/eeprom_93cx6.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00pci.h"
 #include "rt2x00soc.h"
 #include "rt2800lib.h"
@@ -688,6 +689,7 @@ static void rt2800pci_write_beacon(struct queue_entry *entry,
 				   struct txentry_desc *txdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	unsigned int beacon_base;
 	u32 reg;
 
@@ -700,9 +702,24 @@ static void rt2800pci_write_beacon(struct queue_entry *entry,
 	rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
 
 	/*
+	 * Register descriptor details in skb frame descriptor.
+	 */
+	skbdesc->desc = entry->skb->data - TXWI_DESC_SIZE;
+	skbdesc->desc_len = TXWI_DESC_SIZE;
+
+	/*
 	 * Add the TXWI for the beacon to the skb.
 	 */
 	rt2800_write_txwi(entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
+
+	/*
+	 * Adjust skb to take TXWI into account.
+	 */
 	skb_push(entry->skb, TXWI_DESC_SIZE);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 1b87daa..9a29f73 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -37,6 +37,7 @@
 #include <linux/usb.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00usb.h"
 #include "rt2800lib.h"
 #include "rt2800.h"
@@ -437,6 +438,7 @@ static void rt2800usb_write_beacon(struct queue_entry *entry,
 				   struct txentry_desc *txdesc)
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	unsigned int beacon_base;
 	u32 reg;
 
@@ -449,9 +451,24 @@ static void rt2800usb_write_beacon(struct queue_entry *entry,
 	rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
 
 	/*
+	 * Register descriptor details in skb frame descriptor.
+	 */
+	skbdesc->desc = entry->skb->data - TXWI_DESC_SIZE;
+	skbdesc->desc_len = TXWI_DESC_SIZE;
+
+	/*
 	 * Add the TXWI for the beacon to the skb.
 	 */
 	rt2800_write_txwi(entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
+
+	/*
+	 * Adjust skb to take TXWI into account.
+	 */
 	skb_push(entry->skb, TXWI_DESC_SIZE);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index 9e2eed5..85e9990 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -204,6 +204,7 @@ void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
 	if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
 		skb_queue_purge(&intf->frame_dump_skbqueue);
 }
+EXPORT_SYMBOL_GPL(rt2x00debug_dump_frame);
 
 static int rt2x00debug_file_open(struct inode *inode, struct file *file)
 {
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index e5969a5..9e48bbc 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -420,7 +420,6 @@ static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
 {
 	struct data_queue *queue = entry->queue;
 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
-	enum rt2x00_dump_type;
 
 	rt2x00dev->ops->lib->write_tx_desc(rt2x00dev, entry->skb, txdesc);
 
@@ -428,9 +427,7 @@ static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
 	 * All processing on the frame has been completed, this means
 	 * it is now ready to be dumped to userspace through debugfs.
 	 */
-	dump_type = (txdesc->queue == QID_BEACON) ?
-					DUMP_FRAME_BEACON : DUMP_FRAME_TX;
-	rt2x00debug_dump_frame(rt2x00dev, dump_type, entry->skb);
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TX, entry->skb);
 }
 
 static void rt2x00queue_kick_tx_queue(struct queue_entry *entry,
@@ -594,11 +591,6 @@ int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
 	skbdesc->entry = intf->beacon;
 
 	/*
-	 * Write TX descriptor into reserved room in front of the beacon.
-	 */
-	rt2x00queue_write_tx_descriptor(intf->beacon, &txdesc);
-
-	/*
 	 * Send beacon to hardware and enable beacon genaration..
 	 */
 	rt2x00dev->ops->lib->write_beacon(intf->beacon, &txdesc);
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 1be1d7d..cf9d507 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -34,6 +34,7 @@
 #include <linux/eeprom_93cx6.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00pci.h"
 #include "rt61pci.h"
 
@@ -1872,6 +1873,16 @@ static void rt61pci_write_beacon(struct queue_entry *entry,
 	rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, reg);
 
 	/*
+	 * Write the TX descriptor for the beacon.
+	 */
+	rt61pci_write_tx_desc(rt2x00dev, entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
+
+	/*
 	 * Write entire beacon with descriptor to register.
 	 */
 	beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index fca661c..085f76e 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -33,6 +33,7 @@
 #include <linux/usb.h>
 
 #include "rt2x00.h"
+#include "rt2x00lib.h"
 #include "rt2x00usb.h"
 #include "rt73usb.h"
 
@@ -1526,6 +1527,16 @@ static void rt73usb_write_beacon(struct queue_entry *entry,
 	rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
 
 	/*
+	 * Write the TX descriptor for the beacon.
+	 */
+	rt73usb_write_tx_desc(rt2x00dev, entry->skb, txdesc);
+
+	/*
+	 * Dump beacon to userspace through debugfs.
+	 */
+	rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
+
+	/*
 	 * Take the descriptor in front of the skb into account.
 	 */
 	skb_push(entry->skb, TXD_DESC_SIZE);
-- 
1.7.1





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