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mt76: mt76x02: omit beacon slot clearing

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mt76 hw does not send beacons from beacon slots, if the corresponding
bitmask is set accordingly. Therefore we can omit clearing the beacon
memory. Clearing uses many usb calls, if usb drivers are used. These
calls unnecessarily slow down the beacon tasklet. Thanks to Stanislaw
Gruzska for pointing this out.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Markus Theil 2019-12-18 17:07:49 +01:00 • committed by Felix Fietkau
parent e7ec563eae
commit 0794d03a8f
1 changed files with 0 additions and 8 deletions
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8
drivers/net/wireless/mediatek/mt76/mt76x02_beacon.c
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@ -58,8 +58,6 @@ __mt76x02_mac_set_beacon(struct mt76x02_dev *dev, u8 bcn_idx,
dev->beacon_data_mask |= BIT(bcn_idx);
} else {
dev->beacon_data_mask &= ~BIT(bcn_idx);
for (i = 0; i < beacon_len; i += 4)
mt76_wr(dev, beacon_addr + i, 0);
}
mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xff00 | ~dev->beacon_data_mask);
@ -241,17 +239,11 @@ EXPORT_SYMBOL_GPL(mt76x02_enqueue_buffered_bc);
void mt76x02_init_beacon_config(struct mt76x02_dev *dev)
{
int i;
mt76_clear(dev, MT_BEACON_TIME_CFG, (MT_BEACON_TIME_CFG_TIMER_EN |
MT_BEACON_TIME_CFG_TBTT_EN |
MT_BEACON_TIME_CFG_BEACON_TX));
mt76_set(dev, MT_BEACON_TIME_CFG, MT_BEACON_TIME_CFG_SYNC_MODE);
mt76_wr(dev, MT_BCN_BYPASS_MASK, 0xffff);
for (i = 0; i < 8; i++)
mt76x02_mac_set_beacon(dev, i, NULL);
mt76x02_set_beacon_offsets(dev);
}
EXPORT_SYMBOL_GPL(mt76x02_init_beacon_config);