Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Larry Finger | a8d7606 | 2012-01-07 20:46:42 -0600 | [diff] [blame] | 3 | * Copyright(c) 2009-2012 Realtek Corporation. |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of version 2 of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 14 | * The full GNU General Public License is included in this distribution in the |
| 15 | * file called LICENSE. |
| 16 | * |
| 17 | * Contact Information: |
| 18 | * wlanfae <wlanfae@realtek.com> |
| 19 | * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, |
| 20 | * Hsinchu 300, Taiwan. |
| 21 | * |
| 22 | * Larry Finger <Larry.Finger@lwfinger.net> |
| 23 | * |
| 24 | *****************************************************************************/ |
| 25 | |
| 26 | #include "wifi.h" |
| 27 | #include "base.h" |
| 28 | #include "rc.h" |
| 29 | |
| 30 | /* |
| 31 | *Finds the highest rate index we can use |
| 32 | *if skb is special data like DHCP/EAPOL, we set should |
| 33 | *it to lowest rate CCK_1M, otherwise we set rate to |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 34 | *highest rate based on wireless mode used for iwconfig |
| 35 | *show Tx rate. |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 36 | */ |
| 37 | static u8 _rtl_rc_get_highest_rix(struct rtl_priv *rtlpriv, |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 38 | struct ieee80211_sta *sta, |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 39 | struct sk_buff *skb, bool not_data) |
| 40 | { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 41 | struct rtl_hal *rtlhal = rtl_hal(rtlpriv); |
| 42 | struct rtl_phy *rtlphy = &(rtlpriv->phy); |
| 43 | struct rtl_sta_info *sta_entry = NULL; |
| 44 | u8 wireless_mode = 0; |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | *this rate is no use for true rate, firmware |
| 48 | *will control rate at all it just used for |
| 49 | *1.show in iwconfig in B/G mode |
| 50 | *2.in rtl_get_tcb_desc when we check rate is |
| 51 | * 1M we will not use FW rate but user rate. |
| 52 | */ |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 53 | |
| 54 | if (sta) { |
| 55 | sta_entry = (struct rtl_sta_info *)sta->drv_priv; |
| 56 | wireless_mode = sta_entry->wireless_mode; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 57 | } |
| 58 | |
Taehee Yoo | cad737d | 2015-03-28 00:22:39 +0900 | [diff] [blame] | 59 | if (rtl_is_special_data(rtlpriv->mac80211.hw, skb, true, false) || |
| 60 | not_data) { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 61 | return 0; |
| 62 | } else { |
| 63 | if (rtlhal->current_bandtype == BAND_ON_2_4G) { |
| 64 | if (wireless_mode == WIRELESS_MODE_B) { |
| 65 | return B_MODE_MAX_RIX; |
| 66 | } else if (wireless_mode == WIRELESS_MODE_G) { |
| 67 | return G_MODE_MAX_RIX; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 68 | } else if (wireless_mode == WIRELESS_MODE_N_24G) { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 69 | if (get_rf_type(rtlphy) != RF_2T2R) |
| 70 | return N_MODE_MCS7_RIX; |
| 71 | else |
| 72 | return N_MODE_MCS15_RIX; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 73 | } else if (wireless_mode == WIRELESS_MODE_AC_24G) { |
| 74 | return AC_MODE_MCS9_RIX; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 75 | } |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 76 | return 0; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 77 | } else { |
| 78 | if (wireless_mode == WIRELESS_MODE_A) { |
| 79 | return A_MODE_MAX_RIX; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 80 | } else if (wireless_mode == WIRELESS_MODE_N_5G) { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 81 | if (get_rf_type(rtlphy) != RF_2T2R) |
| 82 | return N_MODE_MCS7_RIX; |
| 83 | else |
| 84 | return N_MODE_MCS15_RIX; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 85 | } else if (wireless_mode == WIRELESS_MODE_AC_5G) { |
| 86 | return AC_MODE_MCS9_RIX; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 87 | } |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 88 | return 0; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 89 | } |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 90 | } |
| 91 | } |
| 92 | |
| 93 | static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv, |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 94 | struct ieee80211_sta *sta, |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 95 | struct ieee80211_tx_rate *rate, |
| 96 | struct ieee80211_tx_rate_control *txrc, |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 97 | u8 tries, char rix, int rtsctsenable, |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 98 | bool not_data) |
| 99 | { |
| 100 | struct rtl_mac *mac = rtl_mac(rtlpriv); |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 101 | struct rtl_sta_info *sta_entry = NULL; |
| 102 | u8 wireless_mode = 0; |
| 103 | u8 sgi_20 = 0, sgi_40 = 0, sgi_80 = 0; |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 104 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 105 | if (sta) { |
| 106 | sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20; |
| 107 | sgi_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 108 | sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80; |
| 109 | sta_entry = (struct rtl_sta_info *)sta->drv_priv; |
| 110 | wireless_mode = sta_entry->wireless_mode; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 111 | } |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 112 | rate->count = tries; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 113 | rate->idx = rix >= 0x00 ? rix : 0x00; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 114 | if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE && |
| 115 | wireless_mode == WIRELESS_MODE_AC_5G) |
| 116 | rate->idx += 0x10;/*2NSS for 8812AE*/ |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 117 | |
| 118 | if (!not_data) { |
| 119 | if (txrc->short_preamble) |
| 120 | rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 121 | if (mac->opmode == NL80211_IFTYPE_AP || |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 122 | mac->opmode == NL80211_IFTYPE_ADHOC) { |
| 123 | if (sta && (sta->ht_cap.cap & |
| 124 | IEEE80211_HT_CAP_SUP_WIDTH_20_40)) |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 125 | rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 126 | if (sta && (sta->vht_cap.vht_supported)) |
| 127 | rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 128 | } else { |
| 129 | if (mac->bw_40) |
| 130 | rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 131 | if (mac->bw_80) |
| 132 | rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 133 | } |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 134 | |
| 135 | if (sgi_20 || sgi_40 || sgi_80) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 136 | rate->flags |= IEEE80211_TX_RC_SHORT_GI; |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 137 | if (sta && sta->ht_cap.ht_supported && |
| 138 | ((wireless_mode == WIRELESS_MODE_N_5G) || |
| 139 | (wireless_mode == WIRELESS_MODE_N_24G))) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 140 | rate->flags |= IEEE80211_TX_RC_MCS; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | static void rtl_get_rate(void *ppriv, struct ieee80211_sta *sta, |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 145 | void *priv_sta, |
| 146 | struct ieee80211_tx_rate_control *txrc) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 147 | { |
| 148 | struct rtl_priv *rtlpriv = ppriv; |
| 149 | struct sk_buff *skb = txrc->skb; |
| 150 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); |
| 151 | struct ieee80211_tx_rate *rates = tx_info->control.rates; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 152 | __le16 fc = rtl_get_fc(skb); |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 153 | u8 try_per_rate, i, rix; |
| 154 | bool not_data = !ieee80211_is_data(fc); |
| 155 | |
| 156 | if (rate_control_send_low(sta, priv_sta, txrc)) |
| 157 | return; |
| 158 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 159 | rix = _rtl_rc_get_highest_rix(rtlpriv, sta, skb, not_data); |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 160 | try_per_rate = 1; |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 161 | _rtl_rc_rate_set_series(rtlpriv, sta, &rates[0], txrc, |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 162 | try_per_rate, rix, 1, not_data); |
| 163 | |
| 164 | if (!not_data) { |
| 165 | for (i = 1; i < 4; i++) |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 166 | _rtl_rc_rate_set_series(rtlpriv, sta, &rates[i], |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 167 | txrc, i, (rix - i), 1, |
| 168 | not_data); |
| 169 | } |
| 170 | } |
| 171 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 172 | static bool _rtl_tx_aggr_check(struct rtl_priv *rtlpriv, |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 173 | struct rtl_sta_info *sta_entry, u16 tid) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 174 | { |
| 175 | struct rtl_mac *mac = rtl_mac(rtlpriv); |
| 176 | |
| 177 | if (mac->act_scanning) |
| 178 | return false; |
| 179 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 180 | if (mac->opmode == NL80211_IFTYPE_STATION && |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 181 | mac->cnt_after_linked < 3) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 182 | return false; |
| 183 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 184 | if (sta_entry->tids[tid].agg.agg_state == RTL_AGG_STOP) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 185 | return true; |
| 186 | |
| 187 | return false; |
| 188 | } |
| 189 | |
| 190 | /*mac80211 Rate Control callbacks*/ |
| 191 | static void rtl_tx_status(void *ppriv, |
| 192 | struct ieee80211_supported_band *sband, |
| 193 | struct ieee80211_sta *sta, void *priv_sta, |
| 194 | struct sk_buff *skb) |
| 195 | { |
| 196 | struct rtl_priv *rtlpriv = ppriv; |
| 197 | struct rtl_mac *mac = rtl_mac(rtlpriv); |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 198 | struct ieee80211_hdr *hdr = rtl_get_hdr(skb); |
| 199 | __le16 fc = rtl_get_fc(skb); |
| 200 | struct rtl_sta_info *sta_entry; |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 201 | |
| 202 | if (!priv_sta || !ieee80211_is_data(fc)) |
| 203 | return; |
| 204 | |
Taehee Yoo | cad737d | 2015-03-28 00:22:39 +0900 | [diff] [blame] | 205 | if (rtl_is_special_data(mac->hw, skb, true, true)) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 206 | return; |
| 207 | |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 208 | if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) || |
| 209 | is_broadcast_ether_addr(ieee80211_get_DA(hdr))) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 210 | return; |
| 211 | |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 212 | if (sta) { |
| 213 | /* Check if aggregation has to be enabled for this tid */ |
| 214 | sta_entry = (struct rtl_sta_info *) sta->drv_priv; |
Mike McCormack | e10542c | 2011-06-20 10:47:51 +0900 | [diff] [blame] | 215 | if ((sta->ht_cap.ht_supported) && |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 216 | !(skb->protocol == cpu_to_be16(ETH_P_PAE))) { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 217 | if (ieee80211_is_data_qos(fc)) { |
| 218 | u8 tid = rtl_get_tid(skb); |
| 219 | if (_rtl_tx_aggr_check(rtlpriv, sta_entry, |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 220 | tid)) { |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 221 | sta_entry->tids[tid].agg.agg_state = |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 222 | RTL_AGG_PROGRESS; |
| 223 | ieee80211_start_tx_ba_session(sta, tid, |
| 224 | 5000); |
Chaoming_Li | c6a9de0 | 2011-04-25 12:53:19 -0500 | [diff] [blame] | 225 | } |
| 226 | } |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 227 | } |
| 228 | } |
| 229 | } |
| 230 | |
Catalin Iacob | c88d0dc | 2013-02-11 22:18:05 +0100 | [diff] [blame] | 231 | static void rtl_rate_init(void *ppriv, |
| 232 | struct ieee80211_supported_band *sband, |
Simon Wunderlich | 3de805c | 2013-07-08 16:55:50 +0200 | [diff] [blame] | 233 | struct cfg80211_chan_def *chandef, |
Catalin Iacob | c88d0dc | 2013-02-11 22:18:05 +0100 | [diff] [blame] | 234 | struct ieee80211_sta *sta, void *priv_sta) |
| 235 | { |
| 236 | } |
| 237 | |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 238 | static void rtl_rate_update(void *ppriv, |
| 239 | struct ieee80211_supported_band *sband, |
| 240 | struct cfg80211_chan_def *chandef, |
| 241 | struct ieee80211_sta *sta, void *priv_sta, |
| 242 | u32 changed) |
| 243 | { |
| 244 | } |
| 245 | |
| 246 | static void *rtl_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 247 | { |
| 248 | struct rtl_priv *rtlpriv = rtl_priv(hw); |
| 249 | return rtlpriv; |
| 250 | } |
| 251 | |
| 252 | static void rtl_rate_free(void *rtlpriv) |
| 253 | { |
| 254 | return; |
| 255 | } |
| 256 | |
| 257 | static void *rtl_rate_alloc_sta(void *ppriv, |
| 258 | struct ieee80211_sta *sta, gfp_t gfp) |
| 259 | { |
| 260 | struct rtl_priv *rtlpriv = ppriv; |
| 261 | struct rtl_rate_priv *rate_priv; |
| 262 | |
| 263 | rate_priv = kzalloc(sizeof(struct rtl_rate_priv), gfp); |
| 264 | if (!rate_priv) { |
| 265 | RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
Joe Perches | f30d750 | 2012-01-04 19:40:41 -0800 | [diff] [blame] | 266 | "Unable to allocate private rc structure\n"); |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 267 | return NULL; |
| 268 | } |
| 269 | |
| 270 | rtlpriv->rate_priv = rate_priv; |
| 271 | |
| 272 | return rate_priv; |
| 273 | } |
| 274 | |
| 275 | static void rtl_rate_free_sta(void *rtlpriv, |
| 276 | struct ieee80211_sta *sta, void *priv_sta) |
| 277 | { |
| 278 | struct rtl_rate_priv *rate_priv = priv_sta; |
| 279 | kfree(rate_priv); |
| 280 | } |
| 281 | |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 282 | static struct rate_control_ops rtl_rate_ops = { |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 283 | .name = "rtl_rc", |
| 284 | .alloc = rtl_rate_alloc, |
| 285 | .free = rtl_rate_free, |
| 286 | .alloc_sta = rtl_rate_alloc_sta, |
| 287 | .free_sta = rtl_rate_free_sta, |
Catalin Iacob | c88d0dc | 2013-02-11 22:18:05 +0100 | [diff] [blame] | 288 | .rate_init = rtl_rate_init, |
Larry Finger | f3a97e9 | 2014-09-22 09:39:24 -0500 | [diff] [blame] | 289 | .rate_update = rtl_rate_update, |
Larry Finger | 0c81733 | 2010-12-08 11:12:31 -0600 | [diff] [blame] | 290 | .tx_status = rtl_tx_status, |
| 291 | .get_rate = rtl_get_rate, |
| 292 | }; |
| 293 | |
| 294 | int rtl_rate_control_register(void) |
| 295 | { |
| 296 | return ieee80211_rate_control_register(&rtl_rate_ops); |
| 297 | } |
| 298 | |
| 299 | void rtl_rate_control_unregister(void) |
| 300 | { |
| 301 | ieee80211_rate_control_unregister(&rtl_rate_ops); |
| 302 | } |