From: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
To enable the mac80211 fast-tx feature, the hw/driver needs to support
dynamic power saving and fragmentation. Since our driver does not
need to fragment packet into smaller pieces, we just hook an empty
callback of set_frag_threshold to avoid fragmentation in mac80211.
After this, the mac80211 will not fragment the packets and can transmit
them faster by cache the header information.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtlwifi/base.c | 2 ++
drivers/net/wireless/realtek/rtlwifi/core.c | 6 ++++++
2 files changed, 8 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c
index 89ec318598ea..e902cd7adbfe 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.c
+++ b/drivers/net/wireless/realtek/rtlwifi/base.c
@@ -395,6 +395,8 @@ static void _rtl_init_mac80211(struct ieee80211_hw *hw)
ieee80211_hw_set(hw, CONNECTION_MONITOR);
ieee80211_hw_set(hw, MFP_CAPABLE);
ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
+ ieee80211_hw_set(hw, SUPPORTS_TX_FRAG);
+ ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
/* swlps or hwlps has been set in diff chip in init_sw_vars */
if (rtlpriv->psc.swctrl_lps) {
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index 6c698123ac07..d454c38fc9cd 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1001,6 +1001,11 @@ static void rtl_op_sta_statistics(struct ieee80211_hw *hw,
sinfo->filled = 0;
}
+static int rtl_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
+{
+ return -EOPNOTSUPP;
+}
+
/*
*for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
*for rtl819x BE = 0, BK = 1, VI = 2, VO = 3
@@ -1906,6 +1911,7 @@ const struct ieee80211_ops rtl_ops = {
.configure_filter = rtl_op_configure_filter,
.set_key = rtl_op_set_key,
.sta_statistics = rtl_op_sta_statistics,
+ .set_frag_threshold = rtl_op_set_frag_threshold,
.conf_tx = rtl_op_conf_tx,
.bss_info_changed = rtl_op_bss_info_changed,
.get_tsf = rtl_op_get_tsf,
--
2.15.1
