lwn.git/drivers/net/wireless/ath/ath9k/main.c, branch v3.9.2

ath9k: Re-enable interrupts after a channel change failure

2013-04-03T18:31:57+00:00

ath_complete_reset will not be called if ath9k_hw_reset is unsuccessful, so we need to re-enable intertupts to balence the previous ath_prepare_reset call. Also schedule a reset as a best effort method to recover the chip from whatever state caused the channel change failure. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=55771 Signed-off-by: Robert Shade Signed-off-by: John W. Linville

ath9k: Fix ATH9K_HW_CAP_HT usage

2013-02-11T20:34:56+00:00

There are a few places where the station's HT capabilities should be checked instead of ATH9K_HW_CAP_HT, which is a global feature for the driver. Fix this. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville

ath9k: add debug parameters for spectral scan

2013-01-30T20:06:40+00:00

Export the various parameters to userspace. Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer Signed-off-by: John W. Linville

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless

2013-01-28T18:54:03+00:00

Conflicts: drivers/net/wireless/ath/ath9k/main.c drivers/net/wireless/iwlwifi/dvm/tx.c

ath9k: clean up processing of pending tx frames on reset

2013-01-22T21:03:21+00:00

Dropping packets from aggregation sessions is usually not a good idea, as it might upset the synchronization of the BlockAck receive window of the remote node. The use of the retry_tx parameter to reset/tx-drain functions also seemed a bit arbitrary. This patch removes this parameter altogether and ensures that pending tx frames are not dropped for no good reason. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

ath9k: stop rx after tx

2013-01-22T21:02:15+00:00

Completing frame transmission can fail if the rx engine is stopped prematurely, as the hw might be waiting for an ACK from the other side. Shutting down tx before rx might make the DMA shutdown more reliable. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

ath9k: allow setting arbitrary antenna masks on AR9003+

2013-01-22T19:33:44+00:00

Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

ath9k: disable the tasklet before taking the PCU lock

2013-01-14T20:02:22+00:00

Fixes a reported CPU soft lockup where the tasklet tries to acquire the lock and blocks while ath_prepare_reset (holding the lock) waits for it to complete. Cc: stable@vger.kernel.org Reported-by: Robert Shade Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

ath9k: fix rx flush handling

2013-01-11T19:12:02+00:00

Right now the rx flush is not doing anything useful on AR9003+, as it only works if the buffers in the rx FIFO have not been purged yet, as is done by ath_stoprecv. To fix this, always call ath_flushrecv from within ath_stoprecv before the FIFO is emptied, but still after the hw receive path has been stopped. This ensures that frames received (and ACKed by the hardware) shortly before a reset will be seen by the software, which should improve A-MPDU session stability. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

ath9k: add a better fix for the rx tasklet vs rx flush race

2013-01-11T19:12:02+00:00

Ensure that the rx tasklet is no longer running when entering the reset path. Also remove the distinction between flush and no-flush frame processing. If a frame has been received and ACKed by the hardware, the stack needs to see it, so that the BA receive window does not go out of sync. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville