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authorYan-Hsuan Chuang <yhchuang@realtek.com>2019-10-02 14:35:23 +0800
committerKalle Valo <kvalo@codeaurora.org>2019-10-04 16:44:58 +0300
commit127eef1d46f80056fe9f18406c6eab38778d8a06 (patch)
tree5b70b2d6b8a9a1108f390f2252fd09e6e91e2766 /drivers/net/wireless/realtek/rtw88/main.c
parentrtw88: report tx rate to mac80211 stack (diff)
downloadlinux-dev-127eef1d46f80056fe9f18406c6eab38778d8a06.tar.xz
linux-dev-127eef1d46f80056fe9f18406c6eab38778d8a06.zip
rtw88: add TX-AMSDU support
Based on the mac80211's TXQ implementation, TX-AMSDU can be used to get higher MAC efficiency. To make mac80211 aggregate MSDUs, low level driver just need to leave skbs in the TXQ, and mac80211 will try to aggregate them if possible. As driver will schedule a tasklet when the TX queue is woke, until the tasklet being served, there will have some skbs in the queue if traffic is heavy. Driver can control the max AMSDU size depending on the current bit rate used by hardware/firmware. The higher rates are used, the larger AMSDU size can be. It is tested that can achieve higher T-Put at higher rates. If the environment is relatively clean, and the bit_rate is high enough, we can get about 80Mbps improvement. For lower bit rates, not much gain can we get, so leave the max_amsdu length low to prevent aggregation. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/main.c')
-rw-r--r--drivers/net/wireless/realtek/rtw88/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 690a5c4d64e7..f7044e8bcb5b 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1310,6 +1310,7 @@ int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw)
ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
+ ieee80211_hw_set(hw, TX_AMSDU);
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP) |