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ath5k: Stop queues only for NF calibration

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As far as we know, only NF calibration interferes with RX/TX so we can
leave the queues enabled for the other calibrations.

BTW: Stopping the queues is not enough for avoiding transmissions, since there
might be packets in the queue + beacons are also sent regularly! But i leave it
like this until we have a better solution (stopping TX DMA?).

Signed-off-by: Bruno Randolf <br1@einfach.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-05-19 10:31:05 +09:00 committed by John W. Linville
parent 9e04a7eb1f
commit 0e8e02dddc
1 changed files with 6 additions and 5 deletions
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11
drivers/net/wireless/ath/ath5k/base.c
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@ -2786,10 +2786,6 @@ ath5k_tasklet_calibrate(unsigned long data)
/* Only full calibration for now */
ah->ah_cal_mask |= AR5K_CALIBRATION_FULL;
/* Stop queues so that calibration
* doesn't interfere with tx */
ieee80211_stop_queues(sc->hw);
ATH5K_DBG(sc, ATH5K_DEBUG_CALIBRATE, "channel %u/%x\n",
ieee80211_frequency_to_channel(sc->curchan->center_freq),
sc->curchan->hw_value);
@ -2807,8 +2803,13 @@ ath5k_tasklet_calibrate(unsigned long data)
ieee80211_frequency_to_channel(
sc->curchan->center_freq));
/* TODO: We don't need to run noise floor calibration as often
* as I/Q calibration.*/
/* Noise floor calibration interrupts rx/tx path while I/Q calibration
* doesn't. Stop queues so that calibration doesn't interfere with tx */
ieee80211_stop_queues(sc->hw);
ath5k_hw_update_noise_floor(ah);
/* Wake queues */
ieee80211_wake_queues(sc->hw);
ah->ah_cal_mask &= ~AR5K_CALIBRATION_FULL;