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  1. 28 Feb, 2012 4 commits
    • Arik Nemtsov's avatar
      wl12xx: avoid starving the system hlid · 49c9cd26
      Arik Nemtsov authored 
      Re-factor the Tx scheduler so that the system_hlid is taken into account
before restarting an iteration over the wlvifs. Previously this
hlid had a lower priority and would starve if some wlvif had many
packets.
In addition avoid iterating over wlvifs past last_wlvif when performing
the a second pass. If we had packets in those wlvifs they would have
been found earlier.
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
      49c9cd26
    • Arik Nemtsov's avatar
      wl12xx: reset link Tx queues when freeing it · 6246ca00
      Arik Nemtsov authored 
      Before, the link was first freed (invalidating it in the map), and later
on vif removal, all valid wlvif-related links were reset. Since these
links were already invalid, we failed to reset them.
The bug was made worse by op_stop, which set the tx_queue_count to 0
arbitrarily. This resulted in a negative tx_queue_count in some scenarios.

Fix this by resetting the Tx-queues of a link when freeing it. Add a
WARN_ON and reset all link Tx-queues in op_stop, to avoid a negative
tx_queue_count.

[changed WARN_ON to WARN_ON_ONCE -- Luca]
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
      6246ca00
    • Arik Nemtsov's avatar
      wl12xx: change bits in the link_map under spin lock · 0b0e32b7
      Arik Nemtsov authored 
      These bits are used in op_tx to determine if a packet should be dropped.
As such we should use the spin lock to sync the state.
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
      0b0e32b7
    • Arik Nemtsov's avatar
      wl12xx: set the ELP entry delay to the FW dyn-ps timeout · 5af70c86
      Arik Nemtsov authored 
      With PSM handled in FW, the checks in wl1271_elp_work() are always true.
Thus during active traffic we constantly enter and exit ELP (many times
per second). As each ELP exit takes ~10ms, this can have an adverse
effect on throughput and interactivity.
Set the ELP timeout to the dyn-ps timeout. This period is longer and
avoids the above problem. It also makes sense to stay out of ELP while
we are awake on the network, to minimize delays in Tx/Rx. The same thing
was done by the mac80211 dynamic-ps mechanism before the FW DPS changes.
Signed-off-by: default avatarArik Nemtsov <arik@wizery.com>
Signed-off-by: default avatarLuciano Coelho <coelho@ti.com>
      5af70c86
  3. 27 Feb, 2012 36 commits
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