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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-03-10 13:31:34 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-03-10 13:31:34 +0000
commitacd288a1454a742a0da195f1b6a840ae8c1b0bdb (patch)
tree7ed8ea19ad0e897246b0fd2bc298a3a00f647c63 /package/mac80211
parent92e1c8bfd356f528c919e2ac91f891a05d91d33d (diff)
rt2x00: merge a fix for random tx stalls
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30871 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/mac80211')
-rw-r--r--package/mac80211/patches/300-pending_work.patch55
-rw-r--r--package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch4
-rw-r--r--package/mac80211/patches/607-rt2x00-allow_disabling_bands_through_platform_data.patch2
3 files changed, 58 insertions, 3 deletions
diff --git a/package/mac80211/patches/300-pending_work.patch b/package/mac80211/patches/300-pending_work.patch
index 25d3b1744..30ce96e17 100644
--- a/package/mac80211/patches/300-pending_work.patch
+++ b/package/mac80211/patches/300-pending_work.patch
@@ -1891,3 +1891,58 @@
if (on)
REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
+--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
++++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
+@@ -430,10 +430,14 @@ void rt2x00lib_txdone(struct queue_entry
+ /*
+ * 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.
++ * is reenabled when the txdone handler has finished. This has to be
++ * serialized with rt2x00mac_tx(), otherwise we can wake up queue
++ * before it was stopped.
+ */
++ spin_lock_bh(&entry->queue->tx_lock);
+ if (!rt2x00queue_threshold(entry->queue))
+ rt2x00queue_unpause_queue(entry->queue);
++ spin_unlock_bh(&entry->queue->tx_lock);
+ }
+ EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
+
+--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
++++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
+@@ -152,13 +152,22 @@ void rt2x00mac_tx(struct ieee80211_hw *h
+ if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false)))
+ goto exit_fail;
+
++ /*
++ * Pausing queue has to be serialized with rt2x00lib_txdone(). Note
++ * we should not use spin_lock_bh variant as bottom halve was already
++ * disabled before ieee80211_xmit() call.
++ */
++ spin_lock(&queue->tx_lock);
+ if (rt2x00queue_threshold(queue))
+ rt2x00queue_pause_queue(queue);
++ spin_unlock(&queue->tx_lock);
+
+ return;
+
+ exit_fail:
++ spin_lock(&queue->tx_lock);
+ rt2x00queue_pause_queue(queue);
++ spin_unlock(&queue->tx_lock);
+ exit_free_skb:
+ ieee80211_free_txskb(hw, skb);
+ }
+--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
++++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
+@@ -619,6 +619,9 @@ int rt2x00queue_write_tx_frame(struct da
+ else if (test_bit(REQUIRE_DMA, &queue->rt2x00dev->cap_flags))
+ rt2x00queue_align_frame(skb);
+
++ /*
++ * That function must be called with bh disabled.
++ */
+ spin_lock(&queue->tx_lock);
+
+ if (unlikely(rt2x00queue_full(queue))) {
diff --git a/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch b/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
index 31e33b781..e40d3a934 100644
--- a/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
+++ b/package/mac80211/patches/603-rt2x00-introduce-rt2x00eeprom.patch
@@ -239,7 +239,7 @@
.get_entry_state = rt2800pci_get_entry_state,
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
-@@ -1161,6 +1161,10 @@ int rt2x00lib_probe_dev(struct rt2x00_de
+@@ -1165,6 +1165,10 @@ int rt2x00lib_probe_dev(struct rt2x00_de
BIT(NL80211_IFTYPE_MESH_POINT) |
BIT(NL80211_IFTYPE_WDS);
@@ -250,7 +250,7 @@
/*
* Initialize work.
*/
-@@ -1284,6 +1288,11 @@ void rt2x00lib_remove_dev(struct rt2x00_
+@@ -1288,6 +1292,11 @@ void rt2x00lib_remove_dev(struct rt2x00_
*/
if (rt2x00dev->drv_data)
kfree(rt2x00dev->drv_data);
diff --git a/package/mac80211/patches/607-rt2x00-allow_disabling_bands_through_platform_data.patch b/package/mac80211/patches/607-rt2x00-allow_disabling_bands_through_platform_data.patch
index 9056076bd..476f73011 100644
--- a/package/mac80211/patches/607-rt2x00-allow_disabling_bands_through_platform_data.patch
+++ b/package/mac80211/patches/607-rt2x00-allow_disabling_bands_through_platform_data.patch
@@ -12,7 +12,7 @@
#endif /* _RT2X00_PLATFORM_H */
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
-@@ -829,6 +829,22 @@ static int rt2x00lib_probe_hw_modes(stru
+@@ -833,6 +833,22 @@ static int rt2x00lib_probe_hw_modes(stru
unsigned int num_rates;
unsigned int i;