UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mt76: mt7915: fix mgmt frame using unexpected bitrate 

Fix the current driver mgmt frame is not respecting the basic rates field
provided by the AP and then unconditionally is using the lowest (1 or 6
Mbps) rate.

For example, if the AP only supported basic rate {24, 36, 48, 54} Mbps,
mt7921 cannot send mgmt frame with the rate not in the group. So,
instead, we pick up the lowest basic rate the AP can support to send.

Fixes: e57b790146 ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Suggested-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang 2021-07-14 04:16:01 +08:00 committed by Felix Fietkau
parent 326d229f86
commit bad67a2641
2 changed files with 5 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/mediatek/mt76/mt7915/mac.c
View File

@ -1053,15 +1053,15 @@ void mt7915_mac_write_txwi(struct mt7915_dev *dev, __le32 *txwi,
mt7915_mac_write_txwi_80211(dev, txwi, skb, key);
if (txwi[2] & cpu_to_le32(MT_TXD2_FIX_RATE)) {
u16 rate;
u16 rate, mode;
/* hardware won't add HTC for mgmt/ctrl frame */
txwi[2] |= cpu_to_le32(MT_TXD2_HTC_VLD);
if (mphy->chandef.chan->band == NL80211_BAND_5GHZ)
rate = MT7915_5G_RATE_DEFAULT;
else
rate = MT7915_2G_RATE_DEFAULT;
rate = mt76_default_basic_rate(mphy, vif);
mode = rate >> 8;
rate &= GENMASK(7, 0);
rate |= FIELD_PREP(MT_TX_RATE_MODE, mode);
val = MT_TXD6_FIXED_BW |
FIELD_PREP(MT_TXD6_TX_RATE, rate);

2
drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
View File

@ -36,8 +36,6 @@
#define MT7915_CFEND_RATE_DEFAULT 0x49 /* OFDM 24M */
#define MT7915_CFEND_RATE_11B 0x03 /* 11B LP, 11M */
#define MT7915_5G_RATE_DEFAULT 0x4b /* OFDM 6M */
#define MT7915_2G_RATE_DEFAULT 0x0 /* CCK 1M */
#define MT7915_THERMAL_THROTTLE_MAX 100