From 4c683607145d22c872d6b473c5f5465f8459c5de Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Mon, 29 Feb 2016 17:05:35 -0500 Subject: [PATCH] rtl8xxxu: Improve handling of txdesc32 vs txdesc40 handling Further correct the handling of 40 byte TX descriptors. Signed-off-by: Jes Sorensen Signed-off-by: Kalle Valo --- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.c | 123 +++++++++++++----- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu.h | 7 +- 2 files changed, 92 insertions(+), 38 deletions(-) diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c index 4fbf44562d0e..927fd3b13ae3 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.c @@ -7018,15 +7018,6 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, } } - if (rate_flag & IEEE80211_TX_RC_MCS) - rate = tx_info->control.rates[0].idx + DESC_RATE_MCS0; - else - rate = tx_rate->hw_value; - tx_desc->txdw5 = cpu_to_le32(rate); - - if (ieee80211_is_data(hdr->frame_control)) - tx_desc->txdw5 |= cpu_to_le32(0x0001ff00); - /* (tx_info->flags & IEEE80211_TX_CTL_AMPDU) && */ ampdu_enable = false; if (ieee80211_is_data_qos(hdr->frame_control) && sta) { @@ -7041,8 +7032,18 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, } } + if (rate_flag & IEEE80211_TX_RC_MCS) + 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)); if (!usedesc40) { + tx_desc->txdw5 = cpu_to_le32(rate); + + if (ieee80211_is_data(hdr->frame_control)) + tx_desc->txdw5 |= cpu_to_le32(0x0001ff00); + tx_desc->txdw3 = cpu_to_le32((u32)seq_number << TXDESC_SEQ_SHIFT_8723A); @@ -7050,9 +7051,56 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, tx_desc->txdw1 |= cpu_to_le32(TXDESC_AGG_ENABLE_8723A); else tx_desc->txdw1 |= cpu_to_le32(TXDESC_AGG_BREAK_8723A); + + if (ieee80211_is_mgmt(hdr->frame_control)) { + tx_desc->txdw5 = cpu_to_le32(tx_rate->hw_value); + tx_desc->txdw4 |= + cpu_to_le32(TXDESC_USE_DRIVER_RATE_8723A); + tx_desc->txdw5 |= + cpu_to_le32(6 << + TXDESC_RETRY_LIMIT_SHIFT_8723A); + tx_desc->txdw5 |= + cpu_to_le32(TXDESC_RETRY_LIMIT_ENABLE_8723A); + } + + if (ieee80211_is_data_qos(hdr->frame_control)) + tx_desc->txdw4 |= cpu_to_le32(TXDESC_QOS_8723A); + + if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE || + (sta && vif && vif->bss_conf.use_short_preamble)) + tx_desc->txdw4 |= + cpu_to_le32(TXDESC_SHORT_PREAMBLE_8723A); + + if (rate_flag & IEEE80211_TX_RC_SHORT_GI || + (ieee80211_is_data_qos(hdr->frame_control) && + sta && sta->ht_cap.cap & + (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20))) { + tx_desc->txdw5 |= cpu_to_le32(TXDESC_SHORT_GI); + } + + 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 << + TXDESC_RTS_RATE_SHIFT_8723A); + tx_desc->txdw4 |= + cpu_to_le32(TXDESC_RTS_CTS_ENABLE_8723A); + tx_desc->txdw4 |= + cpu_to_le32(TXDESC_HW_RTS_ENABLE_8723A); + } } else { tx_desc40 = (struct rtl8723bu_tx_desc *)tx_desc; + tx_desc40->txdw4 = cpu_to_le32(rate); + if (ieee80211_is_data(hdr->frame_control)) { + tx_desc->txdw4 |= + cpu_to_le32(0x1f << + TXDESC_DATA_RATE_FB_SHIFT_8723B); + } + tx_desc40->txdw9 = cpu_to_le32((u32)seq_number << TXDESC_SEQ_SHIFT_8723B); @@ -7061,34 +7109,37 @@ static void rtl8xxxu_tx(struct ieee80211_hw *hw, cpu_to_le32(TXDESC_AGG_ENABLE_8723B); else tx_desc40->txdw2 |= cpu_to_le32(TXDESC_AGG_BREAK_8723B); - }; - if (ieee80211_is_data_qos(hdr->frame_control)) - tx_desc->txdw4 |= cpu_to_le32(TXDESC_QOS); - if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE || - (sta && vif && vif->bss_conf.use_short_preamble)) - tx_desc->txdw4 |= cpu_to_le32(TXDESC_SHORT_PREAMBLE); - if (rate_flag & IEEE80211_TX_RC_SHORT_GI || - (ieee80211_is_data_qos(hdr->frame_control) && - sta && sta->ht_cap.cap & - (IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SGI_20))) { - tx_desc->txdw5 |= cpu_to_le32(TXDESC_SHORT_GI); - } - if (ieee80211_is_mgmt(hdr->frame_control)) { - tx_desc->txdw5 = cpu_to_le32(tx_rate->hw_value); - tx_desc->txdw4 |= cpu_to_le32(TXDESC_USE_DRIVER_RATE_8723A); - tx_desc->txdw5 |= - cpu_to_le32(6 << TXDESC_RETRY_LIMIT_SHIFT_8723A); - tx_desc->txdw5 |= cpu_to_le32(TXDESC_RETRY_LIMIT_ENABLE_8723A); - } - - 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 << - TXDESC_RTS_RATE_SHIFT_8723A); - tx_desc->txdw4 |= cpu_to_le32(TXDESC_RTS_CTS_ENABLE_8723A); - tx_desc->txdw4 |= cpu_to_le32(TXDESC_HW_RTS_ENABLE_8723A); - } + if (ieee80211_is_mgmt(hdr->frame_control)) { + tx_desc40->txdw4 = cpu_to_le32(tx_rate->hw_value); + tx_desc40->txdw3 |= + cpu_to_le32(TXDESC_USE_DRIVER_RATE_8723B); + tx_desc40->txdw4 |= + cpu_to_le32(6 << + TXDESC_RETRY_LIMIT_SHIFT_8723B); + tx_desc40->txdw4 |= + cpu_to_le32(TXDESC_RETRY_LIMIT_ENABLE_8723B); + } + + if (rate_flag & IEEE80211_TX_RC_USE_SHORT_PREAMBLE || + (sta && vif && vif->bss_conf.use_short_preamble)) + tx_desc40->txdw5 |= + cpu_to_le32(TXDESC_SHORT_PREAMBLE_8723B); + + 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 << + TXDESC_RTS_RATE_SHIFT_8723B); + tx_desc->txdw3 |= + cpu_to_le32(TXDESC_RTS_CTS_ENABLE_8723B); + tx_desc->txdw3 |= + cpu_to_le32(TXDESC_HW_RTS_ENABLE_8723B); + } + }; rtl8xxxu_calc_tx_desc_csum(tx_desc); diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h index b015c75f4841..687b9a938170 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu.h @@ -477,7 +477,7 @@ struct rtl8723bu_tx_desc { /* Word 4 */ #define TXDESC_RTS_RATE_SHIFT_8723A 0 #define TXDESC_RTS_RATE_MASK_8723A 0x3f -#define TXDESC_QOS BIT(6) +#define TXDESC_QOS_8723A BIT(6) #define TXDESC_HW_SEQ_ENABLE_8723A BIT(7) #define TXDESC_USE_DRIVER_RATE_8723A BIT(8) #define TXDESC_DISABLE_DATA_FB BIT(10) @@ -486,11 +486,13 @@ struct rtl8723bu_tx_desc { #define TXDESC_HW_RTS_ENABLE_8723A BIT(13) #define TXDESC_PRIME_CH_OFF_LOWER BIT(20) #define TXDESC_PRIME_CH_OFF_UPPER BIT(21) -#define TXDESC_SHORT_PREAMBLE BIT(24) +#define TXDESC_SHORT_PREAMBLE_8723A BIT(24) #define TXDESC_DATA_BW BIT(25) #define TXDESC_RTS_DATA_BW BIT(27) #define TXDESC_RTS_PRIME_CH_OFF_LOWER BIT(28) #define TXDESC_RTS_PRIME_CH_OFF_UPPER BIT(29) +#define TXDESC_DATA_RATE_FB_SHIFT_8723B 8 +#define TXDESC_DATA_RATE_FB_MASK_8723B 0x00001f00 #define TXDESC_RETRY_LIMIT_ENABLE_8723B BIT(17) #define TXDESC_RETRY_LIMIT_SHIFT_8723B 18 #define TXDESC_RETRY_LIMIT_MASK_8723B 0x00fc0000 @@ -498,6 +500,7 @@ struct rtl8723bu_tx_desc { #define TXDESC_RTS_RATE_MASK_8723B 0x3f000000 /* Word 5 */ +#define TXDESC_SHORT_PREAMBLE_8723B BIT(4) #define TXDESC_SHORT_GI BIT(6) #define TXDESC_CCX_TAG BIT(7) #define TXDESC_RETRY_LIMIT_ENABLE_8723A BIT(17) -- 2.20.1