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Commit 62bc060b authored by Mattias Nissler's avatar Mattias Nissler Committed by John W. Linville
Browse files

rt2x00: Allow rt61 to catch up after a missing tx report 



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: default avatarMattias Nissler <mattias.nissler@gmx.de>
Signed-off-by: default avatarIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 3ce54450

drivers/net/wireless/rt2x00/rt61pci.c

+12 −0
Original line number Diff line number Diff line
@@ -1738,6 +1738,7 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev) 
{

	struct data_ring *ring;

	struct data_entry *entry;

	struct data_entry *entry_done;

	struct data_desc *txd;

	u32 word;

	u32 reg;
@@ -1791,6 +1792,17 @@ 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);

			rt2x00lib_txdone(entry_done, TX_FAIL_OTHER, 0);

			entry_done = rt2x00_get_data_entry_done(ring);

		}



		/*

		 * Obtain the status about this packet.

		 */