diff options
Diffstat (limited to 'package/kernel/mac80211/patches/652-0002-rtl8xxxu-Pass-tx_info-to-fill_txdesc-in-order-to-hav.patch')
-rw-r--r-- | package/kernel/mac80211/patches/652-0002-rtl8xxxu-Pass-tx_info-to-fill_txdesc-in-order-to-hav.patch | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/652-0002-rtl8xxxu-Pass-tx_info-to-fill_txdesc-in-order-to-hav.patch b/package/kernel/mac80211/patches/652-0002-rtl8xxxu-Pass-tx_info-to-fill_txdesc-in-order-to-hav.patch new file mode 100644 index 0000000..4b81a9d --- /dev/null +++ b/package/kernel/mac80211/patches/652-0002-rtl8xxxu-Pass-tx_info-to-fill_txdesc-in-order-to-hav.patch @@ -0,0 +1,213 @@ +From f958b1e0806c045830d78c4287fbcddf9e5fd9d0 Mon Sep 17 00:00:00 2001 +From: Jes Sorensen <Jes.Sorensen@redhat.com> +Date: Thu, 6 Oct 2016 21:08:53 -0400 +Subject: [PATCH] rtl8xxxu: Pass tx_info to fill_txdesc in order to have access + to retry count + +In order to obtain retry count for a given rate we need to pass the +full struct ieee80211_tx_info to the function setting the rate in he +TX descriptor. + +This uncovered a huge bug where the old code would use struct +ieee80211_rate.flags to test for rate parameters, which is always +zero, instead of the flags value from struct ieee80211_tx_rate. + +Time to find a brown paper bag :( + +Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> +--- + drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 27 ++++---- + .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 71 ++++++++++++++-------- + 2 files changed, 60 insertions(+), 38 deletions(-) + +--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h ++++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +@@ -1337,10 +1337,11 @@ struct rtl8xxxu_fileops { + u32 ramask, int sgi); + void (*report_connect) (struct rtl8xxxu_priv *priv, + u8 macid, bool connect); +- 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, u32 rts_rate); ++ void (*fill_txdesc) (struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, ++ struct ieee80211_tx_info *tx_info, ++ struct rtl8xxxu_txdesc32 *tx_desc, bool sgi, ++ bool short_preamble, bool ampdu_enable, ++ u32 rts_rate); + int writeN_block_size; + int rx_agg_buf_size; + char tx_desc_size; +@@ -1434,14 +1435,16 @@ int rtl8xxxu_parse_rxdesc24(struct rtl8x + int rtl8xxxu_gen2_channel_to_group(int channel); + bool rtl8xxxu_gen2_simularity_compare(struct rtl8xxxu_priv *priv, + int result[][8], int c1, int c2); +-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, 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, u32 rts_rate); ++void rtl8xxxu_fill_txdesc_v1(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, ++ struct ieee80211_tx_info *tx_info, ++ struct rtl8xxxu_txdesc32 *tx_desc, bool sgi, ++ bool short_preamble, bool ampdu_enable, ++ u32 rts_rate); ++void rtl8xxxu_fill_txdesc_v2(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, ++ struct ieee80211_tx_info *tx_info, ++ struct rtl8xxxu_txdesc32 *tx_desc32, bool sgi, ++ bool short_preamble, 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 +@@ -4759,13 +4759,28 @@ static void rtl8xxxu_dump_action(struct + * This format is used on 8188cu/8192cu/8723au + */ + 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, u32 rts_rate) ++rtl8xxxu_fill_txdesc_v1(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, ++ struct ieee80211_tx_info *tx_info, ++ struct rtl8xxxu_txdesc32 *tx_desc, bool sgi, ++ bool short_preamble, bool ampdu_enable, u32 rts_rate) + { ++ struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info); ++ struct rtl8xxxu_priv *priv = hw->priv; ++ struct device *dev = &priv->udev->dev; ++ u32 rate; ++ u16 rate_flags = tx_info->control.rates[0].flags; + u16 seq_number; + ++ if (rate_flags & IEEE80211_TX_RC_MCS && ++ !ieee80211_is_mgmt(hdr->frame_control)) ++ rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0; ++ else ++ rate = tx_rate->hw_value; ++ ++ if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX) ++ dev_info(dev, "%s: TX rate: %d, pkt size %d\n", ++ __func__, rate, cpu_to_le16(tx_desc->pkt_size)); ++ + seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); + + tx_desc->txdw5 = cpu_to_le32(rate); +@@ -4800,10 +4815,10 @@ rtl8xxxu_fill_txdesc_v1(struct ieee80211 + * 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) { ++ if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { + 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) { ++ } else if (rate_flags & 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); + } +@@ -4814,16 +4829,31 @@ rtl8xxxu_fill_txdesc_v1(struct ieee80211 + * This format is used on 8192eu/8723bu + */ + 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, u32 rts_rate) ++rtl8xxxu_fill_txdesc_v2(struct ieee80211_hw *hw, struct ieee80211_hdr *hdr, ++ struct ieee80211_tx_info *tx_info, ++ struct rtl8xxxu_txdesc32 *tx_desc32, bool sgi, ++ bool short_preamble, bool ampdu_enable, u32 rts_rate) + { ++ struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info); ++ struct rtl8xxxu_priv *priv = hw->priv; ++ struct device *dev = &priv->udev->dev; + struct rtl8xxxu_txdesc40 *tx_desc40; ++ u32 rate; ++ u16 rate_flags = tx_info->control.rates[0].flags; + u16 seq_number; + + tx_desc40 = (struct rtl8xxxu_txdesc40 *)tx_desc32; + ++ if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX) ++ dev_info(dev, "%s: TX rate: %d, pkt size %d\n", ++ __func__, rate, cpu_to_le16(tx_desc40->pkt_size)); ++ ++ if (rate_flags & IEEE80211_TX_RC_MCS && ++ !ieee80211_is_mgmt(hdr->frame_control)) ++ rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0; ++ else ++ rate = tx_rate->hw_value; ++ + seq_number = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); + + tx_desc40->txdw4 = cpu_to_le32(rate); +@@ -4854,10 +4884,10 @@ rtl8xxxu_fill_txdesc_v2(struct ieee80211 + /* + * rts_rate is zero if RTS/CTS or CTS to SELF are not enabled + */ +- if (rate_flag & IEEE80211_TX_RC_USE_RTS_CTS) { ++ if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) { + 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) { ++ } else if (rate_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { + /* + * For some reason the vendor driver doesn't set + * TXDESC40_HW_RTS_ENABLE for CTS to SELF +@@ -4872,14 +4902,13 @@ static void rtl8xxxu_tx(struct ieee80211 + { + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); +- struct ieee80211_rate *tx_rate = ieee80211_get_tx_rate(hw, tx_info); + struct rtl8xxxu_priv *priv = hw->priv; + struct rtl8xxxu_txdesc32 *tx_desc; + struct rtl8xxxu_tx_urb *tx_urb; + struct ieee80211_sta *sta = NULL; + struct ieee80211_vif *vif = tx_info->control.vif; + struct device *dev = &priv->udev->dev; +- u32 queue, rate, rts_rate; ++ u32 queue, rts_rate; + u16 pktlen = skb->len; + u16 seq_number; + u16 rate_flag = tx_info->control.rates[0].flags; +@@ -4906,10 +4935,6 @@ static void rtl8xxxu_tx(struct ieee80211 + goto error; + } + +- if (rtl8xxxu_debug & RTL8XXXU_DEBUG_TX) +- dev_info(dev, "%s: TX rate: %d (%d), pkt size %d\n", +- __func__, tx_rate->bitrate, tx_rate->hw_value, pktlen); +- + if (ieee80211_is_action(hdr->frame_control)) + rtl8xxxu_dump_action(dev, hdr); + +@@ -4963,12 +4988,6 @@ static void rtl8xxxu_tx(struct ieee80211 + } + } + +- if (rate_flag & IEEE80211_TX_RC_MCS && +- !ieee80211_is_mgmt(hdr->frame_control)) +- rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0; +- else +- rate = tx_rate->hw_value; +- + if (rate_flag & IEEE80211_TX_RC_SHORT_GI || + (ieee80211_is_data_qos(hdr->frame_control) && + sta && sta->ht_cap.cap & +@@ -4988,8 +5007,8 @@ static void rtl8xxxu_tx(struct ieee80211 + + 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, rts_rate); ++ priv->fops->fill_txdesc(hw, hdr, tx_info, tx_desc, sgi, short_preamble, ++ ampdu_enable, rts_rate); + + rtl8xxxu_calc_tx_desc_csum(tx_desc); + |