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[5/9] rt2800: tune TX_RTS_CFG config

Message ID 1483707918-31480-6-git-send-email-sgruszka@redhat.com (mailing list archive)
State Accepted
Commit e4019e7f95302c45fad5c35d62c9b3ca8fc30fb2
Delegated to: Kalle Valo
Headers show

Commit Message

Stanislaw Gruszka Jan. 6, 2017, 1:05 p.m. UTC 
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>
---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 4833ec6..1f4a120 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -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);