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rtlwifi: Implement rtl_get_tx_hw_rate to yield correct hw_rate

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Originally, we get legacy rate only, so we extend to get HT and VHT rate.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Ping-Ke Shih 2017-09-29 14:47:54 -05:00 committed by Kalle Valo
parent 0c07bd7457
commit cdc9c7a032
1 changed files with 38 additions and 4 deletions
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42
drivers/net/wireless/realtek/rtlwifi/base.c
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@ -1099,6 +1099,42 @@ int rtlwifi_rate_mapping(struct ieee80211_hw *hw, bool isht, bool isvht,
}
EXPORT_SYMBOL(rtlwifi_rate_mapping);
static u8 _rtl_get_tx_hw_rate(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct ieee80211_tx_rate *r = &info->status.rates[0];
struct ieee80211_rate *txrate;
u8 hw_value = 0x0;
if (r->flags & IEEE80211_TX_RC_MCS) {
/* HT MCS0-15 */
hw_value = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15] - 15 +
r->idx;
} else if (r->flags & IEEE80211_TX_RC_VHT_MCS) {
/* VHT MCS0-9, NSS */
if (ieee80211_rate_get_vht_nss(r) == 2)
hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
else
hw_value = rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
hw_value = hw_value - 9 + ieee80211_rate_get_vht_mcs(r);
} else {
/* legacy */
txrate = ieee80211_get_tx_rate(hw, info);
if (txrate)
hw_value = txrate->hw_value;
}
/* check 5G band */
if (rtlpriv->rtlhal.current_bandtype == BAND_ON_5G &&
hw_value < rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M])
hw_value = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE6M];
return hw_value;
}
void rtl_get_tcb_desc(struct ieee80211_hw *hw,
struct ieee80211_tx_info *info,
struct ieee80211_sta *sta,
@ -1107,12 +1143,10 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw,
struct rtl_priv *rtlpriv = rtl_priv(hw);
struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
struct ieee80211_rate *txrate;
__le16 fc = rtl_get_fc(skb);
txrate = ieee80211_get_tx_rate(hw, info);
if (txrate)
tcb_desc->hw_rate = txrate->hw_value;
tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);
if (rtl_is_tx_report_skb(hw, skb))
tcb_desc->use_spe_rpt = 1;