diff options
| author | Lorenzo Bianconi <lorenzo.bianconi@redhat.com> | 2018-05-15 13:08:14 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-05-23 10:56:05 +0300 |
| commit | 0d45d3fe42efc76b6c4f5a62f8d110c7a2e6f83f (patch) | |
| tree | e0ec7942d58053d3baee375aaa3f93a7400b6a86 /drivers/net/wireless/mediatek/mt76/mt76x2_init.c | |
| parent | d2280e8e9c816f6d72a81531ec67fd60d4d02305 (diff) | |
| download | linux-0d45d3fe42efc76b6c4f5a62f8d110c7a2e6f83f.tar.xz | |
mt76x2: apply coverage class on slot time too
According to 802.11-2007 17.3.8.6 (slot time), the slot time should
be increased by 3 us * coverage class. Taking into account coverage
class in slot time configuration allows to increase by an order of
magnitude the throughput on a 4Km link in a noisy environment
Tested-by: Luca Bisti <luca.bisti@gmail.com>
Tested-by: Gaetano Catalli <gaetano.catalli@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x2_init.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2_init.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c index dd4c1127797e..276c6b6bec95 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_init.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_init.c @@ -482,7 +482,10 @@ void mt76x2_set_tx_ackto(struct mt76x2_dev *dev) { u8 ackto, sifs, slottime = dev->slottime; + /* As defined by IEEE 802.11-2007 17.3.8.6 */ slottime += 3 * dev->coverage_class; + mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG, + MT_BKOFF_SLOT_CFG_SLOTTIME, slottime); sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS); |