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rt2800: tune TX_RTS_CFG config 

Enable RTS frame retry fall-back and limit number of RTS retries to 7
what is default number of retries for small frames. As RTS/CTS is used
for TXOP protection, those settings prevent posting lots of RTS
frames when remote station do not response with CTS at the moment. After
sending 7 RTS's the HW will start back-off mechanism and after it will
start posing RTS again to get access to the medium.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Stanislaw Gruszka 2017-01-06 14:05:14 +01:00 committed by Kalle Valo
parent 01d97ef4b2
commit e4019e7f95
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ralink/rt2x00/rt2800lib.c
View File

@ -4902,10 +4902,10 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, TXOP_HLDR_ET, reg);
rt2800_register_read(rt2x00dev, TX_RTS_CFG, &reg);
rt2x00_set_field32(&reg, TX_RTS_CFG_AUTO_RTS_RETRY_LIMIT, 32);
rt2x00_set_field32(&reg, TX_RTS_CFG_AUTO_RTS_RETRY_LIMIT, 7);
rt2x00_set_field32(&reg, TX_RTS_CFG_RTS_THRES,
IEEE80211_MAX_RTS_THRESHOLD);
rt2x00_set_field32(&reg, TX_RTS_CFG_RTS_FBK_EN, 0);
rt2x00_set_field32(&reg, TX_RTS_CFG_RTS_FBK_EN, 1);
rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg);
rt2800_register_write(rt2x00dev, EXP_ACK_TIME, 0x002400ca);