Skip to contentSkip to conversation

rt2x00: Fix RFKILL polling

PATCH In review Ivo van Doorn 2 participants 9 messages Aug 17, 2009 1 message not in the archive Networking drivers (wireless)

lore
Share & tools
lore

Ivo van Doorn

author
#0 lore raw

PATCH 1/7 rt2x00: Fix RFKILL polling

The rfkill_poll callback function in the drivers check a bit to see if the RFKILL key has been pressed. However when the bit is set it means the radio is active and the device can be used.

The wiphy_rfkill_set_hw_state() function expects the inversed, so '1' must be send when the radio must be disabled.

Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2x00mac.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
drivers/net/wireless/rt2x00/rt2x00mac.c +2 -2
index cb7b6d4..b27a250 100644
@@ -704,8 +704,8 @@ EXPORT_SYMBOL_GPL(rt2x00mac_conf_tx);
 void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
-	bool blocked = !!rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
+	bool active = !!rt2x00dev->ops->lib->rfkill_poll(rt2x00dev);
 
-	wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
+	wiphy_rfkill_set_hw_state(hw->wiphy, !active);
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll);
Signature · 1 line
1.6.4
author
#1 lore raw

PATCH 2/7 rt2x00: Fix for rt2800usb for SHARED_KEY_TABLE initializations

Fixed comments about SHARED_KEY_TABLE_BASE and SHARED_KEY_MODE_BASE. Fixed initialization loop for SHARED_KEY_MODE_ENTRY.

Based on a patch for rt2800pci from Benoit.

Signed-off-by Benoit PAPILLAULT <[email protected]>
Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    8 ++++----
 drivers/net/wireless/rt2x00/rt2800usb.h |    4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)
drivers/net/wireless/rt2x00/rt2800usb.c +4 -4
index 3856f06..c82474e 100644
@@ -1463,6 +1463,10 @@ static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * ASIC will keep garbage value after boot, clear encryption keys.
 	 */
+	for (i = 0; i < 4; i++)
+		rt2x00usb_register_write(rt2x00dev,
+					 SHARED_KEY_MODE_ENTRY(i), 0);
+
 	for (i = 0; i < 256; i++) {
 		u32 wcid[2] = { 0xffffffff, 0x00ffffff };
 		rt2x00usb_register_multiwrite(rt2x00dev, MAC_WCID_ENTRY(i),

@@ -1472,10 +1476,6 @@ static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
 		rt2x00usb_register_write(rt2x00dev, MAC_IVEIV_ENTRY(i), 0);
 	}
 
-	for (i = 0; i < 16; i++)
-		rt2x00usb_register_write(rt2x00dev,
-					 SHARED_KEY_MODE_ENTRY(i), 0);
-
 	/*
 	 * Clear all beacons
 	 * For the Beacon base registers we only need to clear
drivers/net/wireless/rt2x00/rt2800usb.h +2 -2
index 2d9dc37..a79a6d9 100644
@@ -1300,8 +1300,8 @@
  * PAIRWISE_KEY_TABLE_BASE: 32-byte * 256 entry
  * MAC_IVEIV_TABLE_BASE: 8-byte * 256-entry
  * MAC_WCID_ATTRIBUTE_BASE: 4-byte * 256-entry
- * SHARED_KEY_TABLE_BASE: 32-byte * 16-entry
- * SHARED_KEY_MODE_BASE: 4-byte * 16-entry
+ * SHARED_KEY_TABLE_BASE: 32 bytes * 32-entry
+ * SHARED_KEY_MODE_BASE: 4 bits * 32-entry
  */
 #define MAC_WCID_BASE			0x1800
 #define PAIRWISE_KEY_TABLE_BASE		0x4000
Signature · 1 line
1.6.4

A message that is not in the archive (sent off-list or not yet received): [email protected]

author
#3 lore raw

PATCH 4/7 rt2x00: Set SKBDESC_L2_PADDED in RX path

When the RX descriptor indicates the frame was L2 padded, the SKBDESC_L2_PADDED flag should be set to make sure the L2 padding is removed before it is send to mac80211.

Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
drivers/net/wireless/rt2x00/rt2800usb.c +3 -1
index c82474e..6de2eda 100644
@@ -2163,8 +2163,10 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
 	if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
 		rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-	if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
+	if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD)) {
 		rxdesc->dev_flags |= RXDONE_L2PAD;
+		skbdesc->flags |= SKBDESC_L2_PADDED;
+	}
 
 	if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
 		rxdesc->flags |= RX_FLAG_SHORT_GI;
Signature · 1 line
1.6.4
author
#4 lore raw

PATCH 5/7 rt2x00: wireless CLI ID and packet ID must not be 0

In the TX descriptor the Packet ID must not be 0, so add 1 to the ID. The wireless CLI ID is not allowed to be 0 either, but also must be initialized with the wcid value rather then keyid.

Based on a patch for rt2800pci from Benoit

Signed-off-by Benoit PAPILLAULT <[email protected]>
Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
drivers/net/wireless/rt2x00/rt2800usb.c +2 -2
index 6de2eda..3633e58 100644
@@ -1995,11 +1995,11 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev,
 	rt2x00_set_field32(&word, TXWI_W1_BW_WIN_SIZE, txdesc->ba_size);
 	rt2x00_set_field32(&word, TXWI_W1_WIRELESS_CLI_ID,
 			   test_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags) ?
-			       txdesc->key_idx : 0xff);
+			       (skbdesc->entry->entry_idx + 1) : 0xff);
 	rt2x00_set_field32(&word, TXWI_W1_MPDU_TOTAL_BYTE_COUNT,
 			   skb->len - txdesc->l2pad);
 	rt2x00_set_field32(&word, TXWI_W1_PACKETID,
-			   skbdesc->entry->entry_idx);
+			   skbdesc->entry->queue->qid + 1);
 	rt2x00_desc_write(txwi, 1, word);
 
 	/*
Signature · 1 line
1.6.4
author
#5 lore raw

PATCH 6/7 rt2x00: Fix MCS register intialization

According to the original Ralink driver, LG_FBK_CFG0_OFDMMCS2FBK should be initialized to 9 rather then 3.

Based on a patch for rt2800pci from Benoit

Signed-off-by Benoit PAPILLAULT <[email protected]>
Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
drivers/net/wireless/rt2x00/rt2800usb.c +1 -1
index 3633e58..45e02f1 100644
@@ -1520,7 +1520,7 @@ static int rt2800usb_init_registers(struct rt2x00_dev *rt2x00dev)
 	rt2x00usb_register_read(rt2x00dev, LG_FBK_CFG0, &reg);
 	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS0FBK, 8);
 	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS1FBK, 8);
-	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS2FBK, 3);
+	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS2FBK, 9);
 	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS3FBK, 10);
 	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS4FBK, 11);
 	rt2x00_set_field32(&reg, LG_FBK_CFG0_OFDMMCS5FBK, 12);
Signature · 1 line
1.6.4
author
#6 lore raw

PATCH 7/7 rt2x00: Add support for retry rates

From: Benoit PAPILLAULT <[email protected]>

rt2800pci can handle different retry rates,
it will always step 1 rate down after a failed
transmission so creating the retry rate list
for mac80211 is quite simple.

Signed-off-by Benoit PAPILLAULT <[email protected]>
Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2x00dev.c   |   22 +++++++++++++++++-----
 drivers/net/wireless/rt2x00/rt2x00queue.h |    2 ++
 2 files changed, 19 insertions(+), 5 deletions(-)
drivers/net/wireless/rt2x00/rt2x00dev.c +17 -5
index b6676c6..9ab70e4 100644
@@ -220,7 +220,8 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
 	unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb);
-	u8 rate_idx, rate_flags;
+	u8 rate_idx, rate_flags, retry_rates;
+	unsigned int i;
 
 	/*
 	 * Unmap the skb.

@@ -259,16 +260,27 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 
 	rate_idx = skbdesc->tx_rate_idx;
 	rate_flags = skbdesc->tx_rate_flags;
+	retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ?
+	    (txdesc->retry + 1) : 1;
 
 	/*
 	 * Initialize TX status
 	 */
 	memset(&tx_info->status, 0, sizeof(tx_info->status));
 	tx_info->status.ack_signal = 0;
-	tx_info->status.rates[0].idx = rate_idx;
-	tx_info->status.rates[0].flags = rate_flags;
-	tx_info->status.rates[0].count = txdesc->retry + 1;
-	tx_info->status.rates[1].idx = -1; /* terminate */
+
+	/*
+	 * Frame was send with retries, hardware tried
+	 * different rates to send out the frame, at each
+	 * retry it lowered the rate 1 step.
+	 */
+	for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) {
+		tx_info->status.rates[i].idx = rate_idx - i;
+		tx_info->status.rates[i].flags = rate_flags;
+		tx_info->status.rates[i].count = 1;
+	}
+	if (i < (IEEE80211_TX_MAX_RATES -1))
+		tx_info->status.rates[i].idx = -1; /* terminate */
 
 	if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
 		if (test_bit(TXDONE_SUCCESS, &txdesc->flags) ||
drivers/net/wireless/rt2x00/rt2x00queue.h +2 -0
index 47d175a..a5591fb 100644
@@ -214,6 +214,7 @@ struct rxdone_entry_desc {
  *
  * @TXDONE_UNKNOWN: Hardware could not determine success of transmission.
  * @TXDONE_SUCCESS: Frame was successfully send
+ * @TXDONE_FALLBACK: Frame was successfully send using a fallback rate.
  * @TXDONE_FAILURE: Frame was not successfully send
  * @TXDONE_EXCESSIVE_RETRY: In addition to &TXDONE_FAILURE, the
  *	frame transmission failed due to excessive retries.

@@ -221,6 +222,7 @@ struct rxdone_entry_desc {
 enum txdone_entry_desc_flags {
 	TXDONE_UNKNOWN,
 	TXDONE_SUCCESS,
+	TXDONE_FALLBACK,
 	TXDONE_FAILURE,
 	TXDONE_EXCESSIVE_RETRY,
 };
Signature · 1 line
1.6.4
#7 lore raw

Re: [rt2x00-users] [PATCH 4/7] rt2x00: Set SKBDESC_L2_PADDED in RX path

In reply to Ivo van Doorn

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Review

Quoted 10 lines · Ivo van Doorn

When the RX descriptor indicates the frame was L2 padded, the SKBDESC_L2_PADDED flag should be set to make sure the L2 padding is removed before it is send to mac80211.

Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
(quoted diff) +0 -0

b/drivers/net/wireless/rt2x00/rt2800usb.c

drivers/net/wireless/rt2x00/rt2800usb.c static void rt2800usb_fill_rxdone(struct

Quoted 4 lines

index c82474e..6de2eda 100644

drivers/net/wireless/rt2x00/rt2800usb.c +0 -0
@@ -2163,8 +2163,10 @@ static void rt2800usb_fill_rxdone(struct

queue_entry *entry,

drivers/net/wireless/rt2x00/rt2800usb.c static void rt2800usb_fill_rxdone(struct queue_entry *entry, · line 2172

Quoted 11 lines
drivers/net/wireless/rt2x00/rt2800usb.c +3 -1
     if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
         rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
+    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD)) {
         rxdesc->dev_flags |= RXDONE_L2PAD;
+        skbdesc->flags |= SKBDESC_L2_PADDED;
+    }
 
     if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
         rxdesc->flags |= RX_FLAG_SHORT_GI;

I have tested this patch as well and it looks correct. However, during my test, the hardware does not set L2PAD flag, even if padding is present (for some frames). I did the same test with the rt2870sta driver from Ralink and the L2PAD was indeed set.

Ivo : what happens during your tests?

Regards,
Benoit

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkqJwZkACgkQOR6EySwP7oLcEACcDDUaE5oeOhF8CsC1hdg6cKQ6 7K4An2DKy76bVP2CpfhOJePGNrSWDI2v
=3ymH
-----END PGP SIGNATURE-----

author
#8 lore raw

Re: [rt2x00-users] [PATCH 4/7] rt2x00: Set SKBDESC_L2_PADDED in RX path

Quoted 26 lines · Benoit PAPILLAULT

Review

Quoted 10 lines · Ivo van Doorn

When the RX descriptor indicates the frame was L2 padded, the SKBDESC_L2_PADDED flag should be set to make sure the L2 padding is removed before it is send to mac80211.

Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
(quoted diff) +0 -0

b/drivers/net/wireless/rt2x00/rt2800usb.c

drivers/net/wireless/rt2x00/rt2800usb.c static void rt2800usb_fill_rxdone(struct

Quoted 4 lines

index c82474e..6de2eda 100644

drivers/net/wireless/rt2x00/rt2800usb.c +0 -0
@@ -2163,8 +2163,10 @@ static void rt2800usb_fill_rxdone(struct

queue_entry *entry,

Quoted 9 lines
drivers/net/wireless/rt2x00/rt2800usb.c +3 -1
     if (rt2x00_get_field32(rxd0, RXD_W0_MY_BSS))
         rxdesc->dev_flags |= RXDONE_MY_BSS;
 
-    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD))
+    if (rt2x00_get_field32(rxd0, RXD_W0_L2PAD)) {
         rxdesc->dev_flags |= RXDONE_L2PAD;
+        skbdesc->flags |= SKBDESC_L2_PADDED;
+    }
Quoted 6 lines

drivers/net/wireless/rt2x00/rt2800usb.c static void rt2800usb_fill_rxdone(struct queue_entry *entry, · line 2172

Quoted 2 lines
drivers/net/wireless/rt2x00/rt2800usb.c +0 -0
     if (rt2x00_get_field32(rxwi1, RXWI_W1_SHORT_GI))
         rxdesc->flags |= RX_FLAG_SHORT_GI;

I have tested this patch as well and it looks correct. However, during my test, the hardware does not set L2PAD flag, even if padding is present (for some frames). I did the same test with the rt2870sta driver from Ralink and the L2PAD was indeed set.

But when the flag is set, it is being set correctly? Perhaps we can just set the flag at all times, because rt2x00lib checks how much padding is required anyway. Unless of course the device doesn't always add L2 padding when it actually should have.

Quoted 1 line

Ivo : what happens during your tests?

Tests?

I don't really have time to perform any testing, so all patches are only checked by me for 'code correctness'.

author
#9 lore raw

PATCH 3/7 rt2x00: Add new RF chip defines

In reply to Ivo van Doorn

Add new defines for RF chipsets which can be found by the driver. We don't have to check for these chips specifically yet, but it is better to have the defines in now.

Signed-off-by Ivo van Doorn <[email protected]>
---
 drivers/net/wireless/rt2x00/rt2800usb.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
drivers/net/wireless/rt2x00/rt2800usb.h +6 -0
index a79a6d9..4d9991c 100644
@@ -36,6 +36,9 @@
  * RF2750 2.4G/5G 1T2R
  * RF3020 2.4G 1T1R
  * RF2020 2.4G B/G
+ * RF3021 2.4G 1T2R
+ * RF3022 2.4G 2T2R
+ * RF3052 2.4G 2T2R
  */
 #define RF2820				0x0001
 #define RF2850				0x0002

@@ -43,6 +46,9 @@
 #define RF2750				0x0004
 #define RF3020				0x0005
 #define RF2020				0x0006
+#define RF3021				0x0007
+#define RF3022				0x0008
+#define RF3052				0x0009
 
 /*
  * RT2870 version
Signature · 1 line
1.6.4