diff options
| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2024-10-08 20:44:02 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2024-10-17 16:24:17 +0200 |
| commit | 4aefde403da7af30757915e0462d88398c9388c5 (patch) | |
| tree | 40f28dcdce40fd9fb5aa0a475468edef47cbd5b3 /drivers/net/wireless | |
| parent | wifi: brcm80211: BRCM_TRACING should depend on TRACING (diff) | |
| download | linux-4aefde403da7af30757915e0462d88398c9388c5.tar.xz linux-4aefde403da7af30757915e0462d88398c9388c5.zip | |
wifi: rtw88: Fix the RX aggregation in USB 3 mode
RTL8822CU, RTL8822BU, and RTL8821CU don't need BIT_EN_PRE_CALC.
In fact, RTL8822BU in USB 3 mode doesn't pass all the frames to the
driver, resulting in much lower download speed than normal:
$ iperf3 -c 192.168.0.1 -R
Connecting to host 192.168.0.1, port 5201
Reverse mode, remote host 192.168.0.1 is sending
[ 5] local 192.168.0.50 port 43062 connected to 192.168.0.1 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 26.9 MBytes 225 Mbits/sec
[ 5] 1.00-2.00 sec 7.50 MBytes 62.9 Mbits/sec
[ 5] 2.00-3.00 sec 8.50 MBytes 71.3 Mbits/sec
[ 5] 3.00-4.00 sec 8.38 MBytes 70.3 Mbits/sec
[ 5] 4.00-5.00 sec 7.75 MBytes 65.0 Mbits/sec
[ 5] 5.00-6.00 sec 8.00 MBytes 67.1 Mbits/sec
[ 5] 6.00-7.00 sec 8.00 MBytes 67.1 Mbits/sec
[ 5] 7.00-8.00 sec 7.75 MBytes 65.0 Mbits/sec
[ 5] 8.00-9.00 sec 7.88 MBytes 66.1 Mbits/sec
[ 5] 9.00-10.00 sec 7.88 MBytes 66.1 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.02 sec 102 MBytes 85.1 Mbits/sec 224 sender
[ 5] 0.00-10.00 sec 98.6 MBytes 82.7 Mbits/sec receiver
Don't set BIT_EN_PRE_CALC. Then the speed is much better:
% iperf3 -c 192.168.0.1 -R
Connecting to host 192.168.0.1, port 5201
Reverse mode, remote host 192.168.0.1 is sending
[ 5] local 192.168.0.50 port 39000 connected to 192.168.0.1 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 52.8 MBytes 442 Mbits/sec
[ 5] 1.00-2.00 sec 71.9 MBytes 603 Mbits/sec
[ 5] 2.00-3.00 sec 74.8 MBytes 627 Mbits/sec
[ 5] 3.00-4.00 sec 75.9 MBytes 636 Mbits/sec
[ 5] 4.00-5.00 sec 76.0 MBytes 638 Mbits/sec
[ 5] 5.00-6.00 sec 74.1 MBytes 622 Mbits/sec
[ 5] 6.00-7.00 sec 74.0 MBytes 621 Mbits/sec
[ 5] 7.00-8.00 sec 76.0 MBytes 638 Mbits/sec
[ 5] 8.00-9.00 sec 74.4 MBytes 624 Mbits/sec
[ 5] 9.00-10.00 sec 63.9 MBytes 536 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 717 MBytes 601 Mbits/sec 24 sender
[ 5] 0.00-10.00 sec 714 MBytes 599 Mbits/sec receiver
Fixes: 002a5db9a52a ("wifi: rtw88: Enable USB RX aggregation for 8822c/8822b/8821c")
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/afb94a82-3d18-459e-97fc-1a217608cdf0@gmail.com
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/usb.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c index e83ab6fb83f5..b17a429bcd29 100644 --- a/drivers/net/wireless/realtek/rtw88/usb.c +++ b/drivers/net/wireless/realtek/rtw88/usb.c @@ -771,7 +771,6 @@ static void rtw_usb_dynamic_rx_agg_v1(struct rtw_dev *rtwdev, bool enable) u8 size, timeout; u16 val16; - rtw_write32_set(rtwdev, REG_RXDMA_AGG_PG_TH, BIT_EN_PRE_CALC); rtw_write8_set(rtwdev, REG_TXDMA_PQ_MAP, BIT_RXDMA_AGG_EN); rtw_write8_clr(rtwdev, REG_RXDMA_AGG_PG_TH + 3, BIT(7)); |