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-rw-r--r--package/kernel/mac80211/patches/652-0001-rtl8xxxu-Obtain-RTS-rates-from-mac80211.patch138
1 files changed, 138 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/652-0001-rtl8xxxu-Obtain-RTS-rates-from-mac80211.patch b/package/kernel/mac80211/patches/652-0001-rtl8xxxu-Obtain-RTS-rates-from-mac80211.patch
new file mode 100644
index 0000000000..3ebc685f6a
--- /dev/null
+++ b/package/kernel/mac80211/patches/652-0001-rtl8xxxu-Obtain-RTS-rates-from-mac80211.patch
@@ -0,0 +1,138 @@
+From 3d1d6d96f14881c421860973b4eb4b2fff7cb812 Mon Sep 17 00:00:00 2001
+From: Jes Sorensen <Jes.Sorensen@redhat.com>
+Date: Wed, 5 Oct 2016 16:04:54 -0400
+Subject: [PATCH] rtl8xxxu: Obtain RTS rates from mac80211
+
+Use the mac80211 provided rate for RTS rather than the hard coded
+24Mbps as suggested by the vendor drivers.
+
+Reported-by: Andrea Merello <andrea.merello@gmail.com>
+Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
+---
+ drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 6 +--
+ .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 46 ++++++++++++++--------
+ 2 files changed, 32 insertions(+), 20 deletions(-)
+
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h
+@@ -1340,7 +1340,7 @@ struct rtl8xxxu_fileops {
+ void (*fill_txdesc) (struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+- bool ampdu_enable);
++ bool ampdu_enable, u32 rts_rate);
+ int writeN_block_size;
+ int rx_agg_buf_size;
+ char tx_desc_size;
+@@ -1437,11 +1437,11 @@ bool rtl8xxxu_gen2_simularity_compare(st
+ void rtl8xxxu_fill_txdesc_v1(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+- bool ampdu_enable);
++ bool ampdu_enable, u32 rts_rate);
+ void rtl8xxxu_fill_txdesc_v2(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc32, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+- bool ampdu_enable);
++ bool ampdu_enable, u32 rts_rate);
+
+ extern struct rtl8xxxu_fileops rtl8192cu_fops;
+ extern struct rtl8xxxu_fileops rtl8192eu_fops;
+--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+@@ -4762,7 +4762,7 @@ void
+ rtl8xxxu_fill_txdesc_v1(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+- bool ampdu_enable)
++ bool ampdu_enable, u32 rts_rate)
+ {
+ u16 seq_number;
+
+@@ -4796,15 +4796,16 @@ rtl8xxxu_fill_txdesc_v1(struct ieee80211
+ if (sgi)
+ tx_desc->txdw5 |= cpu_to_le32(TXDESC32_SHORT_GI);
+
++ /*
++ * rts_rate is zero if RTS/CTS or CTS to SELF are not enabled
++ */
++ tx_desc->txdw4 |= cpu_to_le32(rts_rate << TXDESC32_RTS_RATE_SHIFT);
+ if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
+- /*
+- * Use RTS rate 24M - does the mac80211 tell
+- * us which to use?
+- */
+- tx_desc->txdw4 |= cpu_to_le32(DESC_RATE_24M <<
+- TXDESC32_RTS_RATE_SHIFT);
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_RTS_CTS_ENABLE);
+ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_HW_RTS_ENABLE);
++ } else if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
++ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_CTS_SELF_ENABLE);
++ tx_desc->txdw4 |= cpu_to_le32(TXDESC32_HW_RTS_ENABLE);
+ }
+ }
+
+@@ -4816,7 +4817,7 @@ void
+ rtl8xxxu_fill_txdesc_v2(struct ieee80211_hdr *hdr,
+ struct rtl8xxxu_txdesc32 *tx_desc32, u32 rate,
+ u16 rate_flag, bool sgi, bool short_preamble,
+- bool ampdu_enable)
++ bool ampdu_enable, u32 rts_rate)
+ {
+ struct rtl8xxxu_txdesc40 *tx_desc40;
+ u16 seq_number;
+@@ -4849,15 +4850,19 @@ rtl8xxxu_fill_txdesc_v2(struct ieee80211
+ if (short_preamble)
+ tx_desc40->txdw5 |= cpu_to_le32(TXDESC40_SHORT_PREAMBLE);
+
++ tx_desc40->txdw4 |= cpu_to_le32(rts_rate << TXDESC40_RTS_RATE_SHIFT);
++ /*
++ * rts_rate is zero if RTS/CTS or CTS to SELF are not enabled
++ */
+ if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) {
+- /*
+- * Use RTS rate 24M - does the mac80211 tell
+- * us which to use?
+- */
+- tx_desc40->txdw4 |= cpu_to_le32(DESC_RATE_24M <<
+- TXDESC40_RTS_RATE_SHIFT);
+ tx_desc40->txdw3 |= cpu_to_le32(TXDESC40_RTS_CTS_ENABLE);
+ tx_desc40->txdw3 |= cpu_to_le32(TXDESC40_HW_RTS_ENABLE);
++ } else if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT) {
++ /*
++ * For some reason the vendor driver doesn't set
++ * TXDESC40_HW_RTS_ENABLE for CTS to SELF
++ */
++ tx_desc40->txdw3 |= cpu_to_le32(TXDESC40_CTS_SELF_ENABLE);
+ }
+ }
+
+@@ -4874,7 +4879,7 @@ static void rtl8xxxu_tx(struct ieee80211
+ struct ieee80211_sta *sta = NULL;
+ struct ieee80211_vif *vif = tx_info->control.vif;
+ struct device *dev = &priv->udev->dev;
+- u32 queue, rate;
++ u32 queue, rate, rts_rate;
+ u16 pktlen = skb->len;
+ u16 seq_number;
+ u16 rate_flag = tx_info->control.rates[0].flags;
+@@ -4974,10 +4979,17 @@ static void rtl8xxxu_tx(struct ieee80211
+ (sta && vif && vif->bss_conf.use_short_preamble))
+ short_preamble = true;
+
++ if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS)
++ rts_rate = ieee80211_get_rts_cts_rate(hw, tx_info)->hw_value;
++ else if (rate_flag & IEEE80211_TX_RC_USE_CTS_PROTECT)
++ rts_rate = ieee80211_get_rts_cts_rate(hw, tx_info)->hw_value;
++ else
++ rts_rate = 0;
++
+ seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
+
+- priv->fops->fill_txdesc(hdr, tx_desc, rate, rate_flag,
+- sgi, short_preamble, ampdu_enable);
++ priv->fops->fill_txdesc(hdr, tx_desc, rate, rate_flag, sgi,
++ short_preamble, ampdu_enable, rts_rate);
+
+ rtl8xxxu_calc_tx_desc_csum(tx_desc);
+