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authorStanislaw Gruszka <sgruszka@redhat.com>2017-01-06 14:05:13 +0100
committerKalle Valo <kvalo@codeaurora.org>2017-01-17 13:58:36 +0200
commit01d97ef4b25f8ca79ff1522416cdaf5b0c6b9047 (patch)
treef58811cf10746b950a9e5fc63752e45e49f30f0e /drivers/net/wireless/ralink
parent15ec51b25e05ab434173ec647fa678b6c7b660bb (diff)
rt2800: change default retry settings
We do not have option to set per frame retry count. We have only global TX_RTY_CFG registers which specify the number or retries. Set setting of that register to value that correspond rate control algorithm number of frame post (number of retries + 1), which is 3 for aggregated frames. This should help with big amount of retries on bad conditions, hence mitigate buffer-bloat like problems. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ralink')
-rw-r--r--drivers/net/wireless/ralink/rt2x00/rt2800lib.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 5436cdb07937..4833ec63b7cd 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -4769,8 +4769,8 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
rt2800_register_write(rt2x00dev, PBF_MAX_PCNT, 0x1f3fbf9f);
rt2800_register_read(rt2x00dev, TX_RTY_CFG, &reg);
- rt2x00_set_field32(&reg, TX_RTY_CFG_SHORT_RTY_LIMIT, 15);
- rt2x00_set_field32(&reg, TX_RTY_CFG_LONG_RTY_LIMIT, 31);
+ rt2x00_set_field32(&reg, TX_RTY_CFG_SHORT_RTY_LIMIT, 2);
+ rt2x00_set_field32(&reg, TX_RTY_CFG_LONG_RTY_LIMIT, 2);
rt2x00_set_field32(&reg, TX_RTY_CFG_LONG_RTY_THRE, 2000);
rt2x00_set_field32(&reg, TX_RTY_CFG_NON_AGG_RTY_MODE, 0);
rt2x00_set_field32(&reg, TX_RTY_CFG_AGG_RTY_MODE, 0);
@@ -7514,6 +7514,13 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
rt2x00dev->hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
/*
+ * Change default retry settings to values corresponding more closely
+ * to rate[0].count setting of minstrel rate control algorithm.
+ */
+ rt2x00dev->hw->wiphy->retry_short = 2;
+ rt2x00dev->hw->wiphy->retry_long = 2;
+
+ /*
* Initialize all hw fields.
*/
ieee80211_hw_set(rt2x00dev->hw, REPORTS_TX_ACK_STATUS);