linux-stable.git/drivers/net/wireless/rt2x00, branch v3.4

rt2x00: Fix rfkill_polling register function.

2012-04-10T18:14:28+00:00

  Move rt2x00rfkill_register(rt2x00dev) to rt2x00lib_probe_dev
  function. It fixes of starting rfkill_poll function at the
  right time if sets hard rfkill block and reboot. rt2x00mac_rfkill_poll
  should be starting before bringing up the wireless interface.

Signed-off-by: Chen, Chien-Chia 
Acked-by: Helmut Schaa 
CC: Kevin Chou 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: fix status register reread logic

2012-03-26T19:07:28+00:00

Another good catch from Jakub Kicinski. This patch fixes my
recent commit: ed61e2b02027935520d1be884fac0b2ffce8379a
"rt2x00: rt2800usb: rework txdone code"

We should reread status register only when nobody else start already
reading status i.e. test_and_set_bit(TX_STATUS_READING, flags) return 0.

Reported-by: Jakub Kicinski 
Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: schedule txdone work on timeout

2012-03-26T19:07:27+00:00

This is fix for my current commit
ed61e2b02027935520d1be884fac0b2ffce8379a
"rt2x00: rt2800usb: rework txdone code"

We should schedule txdone work on timeout, otherwise if newer get
tx status from hardware, we will never report tx status to mac80211
and eventually never wakeup tx queue.

Reported-by: Jakub Kicinski 
Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Signed-off-by: John W. Linville

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-03-19T03:29:41+00:00

rt2x00: rt2800usb: limit tx queues length

2012-03-15T17:40:33+00:00

TX status fifo is limited to 16 elements. When we send more frames than
that, we can easily loose status, what is not good for rate scaling
algorithm.

On my testing the change does not degrade performance, actually make
is slightly better. Additionally with the patch I can see much less
various rt2x00 warnings in dmesg.

Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Acked-by: Helmut Schaa 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: do not check packedid for aggregated frames

2012-03-15T17:40:32+00:00

Tx statuses of aggregated subframes contain packetid of first subframe
in the AMPDU. We can not identify AMPDU subframes based on packedid, so
simply assume that status match first pending frame in the queue. Thats
mostly the same what 2800pci do.

Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Acked-by: Helmut Schaa 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: rework txstatus code

2012-03-15T17:40:31+00:00

Currently we read tx status register after each urb data transfer. As
callback procedure also trigger reading, that causing we have many
"threads" of reading status. To prevent that introduce TX_STATUS_READING
flags, and check if we are already in process of sequential reading
TX_STA_FIFO, before requesting new reads.

Change timer to hrtimer, that make TX_STA_FIFO overruns less possible.
Use 200 us for initial timeout, and then reschedule in 100 us period,
this values probably have to be tuned.

Make changes on txdone work. Schedule it from
rt2800usb_tx_sta_fifo_read_completed() callback when first valid status
show up. Check in callback if tx status timeout happens, and schedule
work on that condition too. That make possible to remove tx status
timeout from generic watchdog. I moved that to rt2800usb.

Loop in txdone work, that should prevent situation when we queue work,
which is already processed, and after finish work is not rescheduled
again.

Signed-off-by: Stanislaw Gruszka 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: rework txdone code

2012-03-15T17:40:31+00:00

Patch change txdone code to make it similar like txdone in rt2800pci,
process only one entry from queue matching tx status.

Before we processed all pending entries from queue until PACKEDID match,
that caused that we do not report tx statuses correctly.

Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Signed-off-by: John W. Linville

rt2x00: rt2800usb: move additional txdone into new function

2012-03-15T17:40:30+00:00

Signed-off-by: Stanislaw Gruszka 
Acked-by: Gertjan van Wingerde 
Signed-off-by: John W. Linville

rt2x00: Set IEEE80211_HW_REPORTS_TX_ACK_STATUS in rt2800

2012-03-15T17:40:25+00:00

rt2800 already reports the tx ack status of each frame back to mac80211.
Advertise this by setting IEEE80211_HW_REPORTS_TX_ACK_STATUS for rt2800.
This allows some mac80211 features like frame loss notifications to work
with rt2800.

Signed-off-by: Helmut Schaa 
Signed-off-by: John W. Linville