From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Subject: [PATCH rtw-next v2 4/4] wifi: rtw88: Don't set SUPPORTS_AMSDU_IN_AMPDU for RTL8814AU
Date: Sun, 30 Mar 2025 17:57:20 +0300 [thread overview]
Message-ID: <6aee626f-586b-4f71-b79a-cf1446834f5f@gmail.com> (raw)
In-Reply-To: <5ccba1b8-d7de-4158-bc9a-0aa465f1b2df@gmail.com>
RTL8814AU doesn't work well with SUPPORTS_AMSDU_IN_AMPDU. The RX speed
is noticeably lower and the VHT RX statistics are strange. Typical
values with SUPPORTS_AMSDU_IN_AMPDU:
Reverse mode, remote host 192.168.0.1 is sending
[ 5] local 192.168.0.50 port 60710 connected to 192.168.0.1 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 74.6 MBytes 626 Mbits/sec
[ 5] 1.00-2.00 sec 79.2 MBytes 665 Mbits/sec
[ 5] 2.00-3.00 sec 84.9 MBytes 712 Mbits/sec
[ 5] 3.00-4.00 sec 83.8 MBytes 703 Mbits/sec
[ 5] 4.00-5.00 sec 85.9 MBytes 720 Mbits/sec
[ 5] 5.00-6.00 sec 78.9 MBytes 662 Mbits/sec
[ 5] 6.00-7.00 sec 81.2 MBytes 682 Mbits/sec
[ 5] 7.00-8.00 sec 80.5 MBytes 675 Mbits/sec
[ 5] 8.00-9.00 sec 79.4 MBytes 666 Mbits/sec
[ 5] 9.00-10.00 sec 82.2 MBytes 689 Mbits/sec
[ 5] 10.00-11.00 sec 82.0 MBytes 688 Mbits/sec
[ 5] 11.00-12.00 sec 84.2 MBytes 707 Mbits/sec
[ 5] 12.00-13.00 sec 71.0 MBytes 596 Mbits/sec
[ 5] 13.00-14.00 sec 69.4 MBytes 582 Mbits/sec
[ 5] 14.00-15.00 sec 80.2 MBytes 673 Mbits/sec
[ 5] 15.00-16.00 sec 74.5 MBytes 625 Mbits/sec
[Rx Counter]:
* CCA (CCK, OFDM, Total) = (0, 2455, 2455)
* False Alarm (CCK, OFDM, Total) = (0, 69, 69)
* CCK cnt (ok, err) = (0, 0)
* OFDM cnt (ok, err) = (1239, 2)
* HT cnt (ok, err) = (0, 0)
* VHT cnt (ok, err) = (21, 12109)
The "VHT ok" number is not believable.
And without SUPPORTS_AMSDU_IN_AMPDU:
Reverse mode, remote host 192.168.0.1 is sending
[ 5] local 192.168.0.50 port 50030 connected to 192.168.0.1 port 5201
[ ID] Interval Transfer Bitrate
[ 5] 0.00-1.00 sec 70.5 MBytes 591 Mbits/sec
[ 5] 1.00-2.00 sec 86.9 MBytes 729 Mbits/sec
[ 5] 2.00-3.00 sec 98.6 MBytes 827 Mbits/sec
[ 5] 3.00-4.00 sec 97.4 MBytes 817 Mbits/sec
[ 5] 4.00-5.00 sec 98.6 MBytes 827 Mbits/sec
[ 5] 5.00-6.00 sec 96.9 MBytes 813 Mbits/sec
[ 5] 6.00-7.00 sec 98.2 MBytes 824 Mbits/sec
[ 5] 7.00-8.00 sec 98.0 MBytes 822 Mbits/sec
[ 5] 8.00-9.00 sec 99.9 MBytes 838 Mbits/sec
[ 5] 9.00-10.00 sec 99.2 MBytes 833 Mbits/sec
[ 5] 10.00-11.00 sec 98.0 MBytes 822 Mbits/sec
[ 5] 11.00-12.00 sec 98.1 MBytes 823 Mbits/sec
[ 5] 12.00-13.00 sec 97.0 MBytes 814 Mbits/sec
[ 5] 13.00-14.00 sec 98.2 MBytes 824 Mbits/sec
[ 5] 14.00-15.00 sec 98.5 MBytes 826 Mbits/sec
[ 5] 15.00-16.00 sec 97.4 MBytes 817 Mbits/sec
[Rx Counter]:
* CCA (CCK, OFDM, Total) = (0, 3860, 3860)
* False Alarm (CCK, OFDM, Total) = (0, 2, 2)
* CCK cnt (ok, err) = (0, 0)
* OFDM cnt (ok, err) = (1486, 0)
* HT cnt (ok, err) = (0, 0)
* VHT cnt (ok, err) = (7399, 9118)
Add a new member "amsdu_in_ampdu" in struct rtw_chip_info and use it
to set SUPPORTS_AMSDU_IN_AMPDU only for the other chips.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
---
v2:
- Add a comment explaining why this is needed.
---
drivers/net/wireless/realtek/rtw88/main.c | 3 ++-
drivers/net/wireless/realtek/rtw88/main.h | 1 +
drivers/net/wireless/realtek/rtw88/rtw8812a.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8814a.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8821a.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8821c.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8822b.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8822c.c | 1 +
8 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index bc2c1a5a30b3..c4de5d114eda 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -2242,7 +2242,8 @@ int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw)
ieee80211_hw_set(hw, SUPPORTS_PS);
ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
- ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
+ if (rtwdev->chip->amsdu_in_ampdu)
+ ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, TX_AMSDU);
ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index f410c554da58..b0f1fabe9554 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -1230,6 +1230,7 @@ struct rtw_chip_info {
u16 fw_fifo_addr[RTW_FW_FIFO_MAX];
const struct rtw_fwcd_segs *fwcd_segs;
+ bool amsdu_in_ampdu;
u8 usb_tx_agg_desc_num;
bool hw_feature_report;
u8 c2h_ra_report_size;
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8812a.c b/drivers/net/wireless/realtek/rtw88/rtw8812a.c
index f9ba2aa2928a..d1cd531ce185 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8812a.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8812a.c
@@ -1075,6 +1075,7 @@ const struct rtw_chip_info rtw8812a_hw_spec = {
.rfe_defs = rtw8812a_rfe_defs,
.rfe_defs_size = ARRAY_SIZE(rtw8812a_rfe_defs),
.rx_ldpc = false,
+ .amsdu_in_ampdu = true,
.hw_feature_report = false,
.c2h_ra_report_size = 4,
.old_datarate_fb_limit = true,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8814a.c b/drivers/net/wireless/realtek/rtw88/rtw8814a.c
index ce8d4e4c6c57..44dd3090484b 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8814a.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8814a.c
@@ -2200,6 +2200,7 @@ const struct rtw_chip_info rtw8814a_hw_spec = {
.rx_ldpc = true,
.max_power_index = 0x3f,
.ampdu_density = IEEE80211_HT_MPDU_DENSITY_2,
+ .amsdu_in_ampdu = false, /* RX speed is better without AMSDU */
.usb_tx_agg_desc_num = 3,
.hw_feature_report = false,
.c2h_ra_report_size = 6,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821a.c b/drivers/net/wireless/realtek/rtw88/rtw8821a.c
index f68239b07319..8b26150b7c33 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821a.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821a.c
@@ -1175,6 +1175,7 @@ const struct rtw_chip_info rtw8821a_hw_spec = {
.rfe_defs = rtw8821a_rfe_defs,
.rfe_defs_size = ARRAY_SIZE(rtw8821a_rfe_defs),
.rx_ldpc = false,
+ .amsdu_in_ampdu = true,
.hw_feature_report = false,
.c2h_ra_report_size = 4,
.old_datarate_fb_limit = true,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
index 0ade7f11cbd2..e370a2ea27aa 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c
@@ -1990,6 +1990,7 @@ const struct rtw_chip_info rtw8821c_hw_spec = {
.band = RTW_BAND_2G | RTW_BAND_5G,
.page_size = TX_PAGE_SIZE,
.dig_min = 0x1c,
+ .amsdu_in_ampdu = true,
.usb_tx_agg_desc_num = 3,
.hw_feature_report = true,
.c2h_ra_report_size = 7,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index b4934da88e33..aad999738869 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -2531,6 +2531,7 @@ const struct rtw_chip_info rtw8822b_hw_spec = {
.band = RTW_BAND_2G | RTW_BAND_5G,
.page_size = TX_PAGE_SIZE,
.dig_min = 0x1c,
+ .amsdu_in_ampdu = true,
.usb_tx_agg_desc_num = 3,
.hw_feature_report = true,
.c2h_ra_report_size = 7,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 5e53e0db177e..645d96ad09fa 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -5349,6 +5349,7 @@ const struct rtw_chip_info rtw8822c_hw_spec = {
.band = RTW_BAND_2G | RTW_BAND_5G,
.page_size = TX_PAGE_SIZE,
.dig_min = 0x20,
+ .amsdu_in_ampdu = true,
.usb_tx_agg_desc_num = 3,
.hw_feature_report = true,
.c2h_ra_report_size = 7,
--
2.49.0
next prev parent reply other threads:[~2025-03-30 14:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-30 14:54 [PATCH rtw-next v2 0/4] Improve RTL8814AU performance Bitterblue Smith
2025-03-30 14:55 ` [PATCH rtw-next v2 1/4] wifi: rtw88: usb: Enable switching the RTL8814AU to USB 3 Bitterblue Smith
2025-03-30 14:56 ` [PATCH rtw-next v2 2/4] wifi: rtw88: usb: Enable RX aggregation for RTL8814AU Bitterblue Smith
2025-03-30 14:56 ` [PATCH rtw-next v2 3/4] wifi: rtw88: Set AMPDU factor to hardware for RTL8814A Bitterblue Smith
2025-03-31 5:39 ` Ping-Ke Shih
2025-03-30 14:57 ` Bitterblue Smith [this message]
2025-03-31 5:35 ` [PATCH rtw-next v2 4/4] wifi: rtw88: Don't set SUPPORTS_AMSDU_IN_AMPDU for RTL8814AU Ping-Ke Shih
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