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rt2x00: fix queue timeout checks

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Add a timestamp to each queue entry which is updated whenever
the status of the entry changes, and remove the per-queue
timestamps.  The previous check was incorrect and caused both
false positives and false negatives.

With the corrected check it comes apparent that the TX status
usually times out on rt2800usb unless there is sufficient traffic
(i.e. the next TX will complete the previous TX status).

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Stezenbach
2011-04-18 15:29:38 +02:00
committed by John W. Linville
parent 0e0d39e5f3
commit 75256f0348
5 changed files with 43 additions and 25 deletions
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8
drivers/net/wireless/rt2x00/rt2x00dev.c
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@@ -225,7 +225,7 @@ EXPORT_SYMBOL_GPL(rt2x00lib_pretbtt);
void rt2x00lib_dmastart(struct queue_entry *entry)
{
set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
rt2x00queue_index_inc(entry->queue, Q_INDEX);
rt2x00queue_index_inc(entry, Q_INDEX);
}
EXPORT_SYMBOL_GPL(rt2x00lib_dmastart);
@@ -233,7 +233,7 @@ void rt2x00lib_dmadone(struct queue_entry *entry)
{
set_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags);
clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
rt2x00queue_index_inc(entry->queue, Q_INDEX_DMA_DONE);
rt2x00queue_index_inc(entry, Q_INDEX_DMA_DONE);
}
EXPORT_SYMBOL_GPL(rt2x00lib_dmadone);
@@ -392,7 +392,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
rt2x00dev->ops->lib->clear_entry(entry);
rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
rt2x00queue_index_inc(entry, Q_INDEX_DONE);
/*
* If the data queue was below the threshold before the txdone
@@ -559,7 +559,7 @@ void rt2x00lib_rxdone(struct queue_entry *entry)
submit_entry:
entry->flags = 0;
rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
rt2x00queue_index_inc(entry, Q_INDEX_DONE);
if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) &&
test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2x00dev->ops->lib->clear_entry(entry);