From: Mattias Nissler <mattias.nissler@xxxxxx>
Sometimes it happens in the tx path that an entry given to the hardware isn't
reported in the txdone handler. This ultimately led to the dreaded "non-free
entry in the non-full queue" message and the stopping of the tx queue. Work
around this issue by allowing the driver to also clear out previos entries in
the txdone handler.
Signed-off-by: Mattias Nissler <mattias.nissler@xxxxxx>
Signed-off-by: Ivo van Doorn <IvDoorn@xxxxxxxxx>
---
drivers/net/wireless/rt2x00/rt61pci.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index a6d4e10..c2b4509 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1708,6 +1708,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
{
struct data_ring *ring;
struct data_entry *entry;
+ struct data_entry *entry_done;
__le32 *txd;
u32 word;
u32 reg;
@@ -1761,6 +1762,18 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
!rt2x00_get_field32(word, TXD_W0_VALID))
return;
+ entry_done = rt2x00_get_data_entry_done(ring);
+ while (entry != entry_done) {
+ /* Catch up. Just report any entries we missed as
+ * failed. */
+ WARNING(rt2x00dev,
+ "TX status report missed for entry %p\n",
+ entry_done);
+ rt2x00pci_txdone(rt2x00dev, entry_done, TX_FAIL_OTHER,
+ 0);
+ entry_done = rt2x00_get_data_entry_done(ring);
+ }
+
/*
* Obtain the status about this packet.
*/
--
1.5.3.4
-
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