package/mac80211/patches/301-rt2x00-Implement-support-for-802.11n.patch

   1 From 42d5399c2743dbd1ddaaadc8cb04adbfc65cc970 Mon Sep 17 00:00:00 2001
   2 From: Ivo van Doorn <IvDoorn@gmail.com>
   3 Date: Sat, 10 Jan 2009 11:01:10 +0100
   4 Subject: [PATCH] rt2x00: Implement support for 802.11n
   5
   6 Extend rt2x00lib capabilities to support 802.11n,
   7 it still lacks aggregation support, but that can
   8 be added in the future.
   9
  10 Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
  11 ---
  12  drivers/net/wireless/rt2x00/Kconfig        |    3 +
  13  drivers/net/wireless/rt2x00/Makefile       |    1 +
  14  drivers/net/wireless/rt2x00/rt2x00.h       |    5 ++
  15  drivers/net/wireless/rt2x00/rt2x00config.c |    5 ++
  16  drivers/net/wireless/rt2x00/rt2x00dev.c    |   91 ++++++++++++++++++++-------
  17  drivers/net/wireless/rt2x00/rt2x00ht.c     |   69 +++++++++++++++++++++
  18  drivers/net/wireless/rt2x00/rt2x00lib.h    |   24 +++++++
  19  drivers/net/wireless/rt2x00/rt2x00queue.c  |    1 +
  20  drivers/net/wireless/rt2x00/rt2x00queue.h  |   26 +++++++-
  21  9 files changed, 197 insertions(+), 28 deletions(-)
  22  create mode 100644 drivers/net/wireless/rt2x00/rt2x00ht.c
  23
  24 --- a/drivers/net/wireless/rt2x00/Makefile
  25 +++ b/drivers/net/wireless/rt2x00/Makefile
  26 @@ -8,6 +8,7 @@ rt2x00lib-$(CONFIG_RT2X00_LIB_CRYPTO)   +=
  27  rt2x00lib-$(CONFIG_RT2X00_LIB_RFKILL)  += rt2x00rfkill.o
  28  rt2x00lib-$(CONFIG_RT2X00_LIB_FIRMWARE)        += rt2x00firmware.o
  29  rt2x00lib-$(CONFIG_RT2X00_LIB_LEDS)    += rt2x00leds.o
  30 +rt2x00lib-$(CONFIG_RT2X00_LIB_HT)      += rt2x00ht.o
  31
  32  obj-$(CONFIG_RT2X00_LIB)               += rt2x00lib.o
  33  obj-$(CONFIG_RT2X00_LIB_PCI)           += rt2x00pci.o
  34 --- a/drivers/net/wireless/rt2x00/rt2x00.h
  35 +++ b/drivers/net/wireless/rt2x00/rt2x00.h
  36 @@ -108,6 +108,7 @@
  37   */
  38  #define ACK_SIZE               14
  39  #define IEEE80211_HEADER       24
  40 +#define AGGREGATION_SIZE       3840
  41  #define PLCP                   48
  42  #define BEACON                 100
  43  #define PREAMBLE               144
  44 @@ -357,6 +358,7 @@ static inline struct rt2x00_intf* vif_to
  45   *     for @tx_power_a, @tx_power_bg and @channels.
  46   * @channels: Device/chipset specific channel values (See &struct rf_channel).
  47   * @channels_info: Additional information for channels (See &struct channel_info).
  48 + * @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
  49   */
  50  struct hw_mode_spec {
  51         unsigned int supported_bands;
  52 @@ -370,6 +372,8 @@ struct hw_mode_spec {
  53         unsigned int num_channels;
  54         const struct rf_channel *channels;
  55         const struct channel_info *channels_info;
  56 +
  57 +       struct ieee80211_sta_ht_cap ht;
  58  };
  59
  60  /*
  61 @@ -604,6 +608,7 @@ enum rt2x00_flags {
  62         CONFIG_EXTERNAL_LNA_BG,
  63         CONFIG_DOUBLE_ANTENNA,
  64         CONFIG_DISABLE_LINK_TUNING,
  65 +       CONFIG_CHANNEL_HT40,
  66  };
  67
  68  /*
  69 --- a/drivers/net/wireless/rt2x00/rt2x00config.c
  70 +++ b/drivers/net/wireless/rt2x00/rt2x00config.c
  71 @@ -173,6 +173,11 @@ void rt2x00lib_config(struct rt2x00_dev
  72         libconf.conf = conf;
  73
  74         if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
  75 +               if (conf_is_ht40(conf))
  76 +                       __set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
  77 +               else
  78 +                       __clear_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
  79 +
  80                 memcpy(&libconf.rf,
  81                        &rt2x00dev->spec.channels[conf->channel->hw_value],
  82                        sizeof(libconf.rf));
  83 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c
  84 +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
  85 @@ -315,18 +315,54 @@ void rt2x00lib_txdone(struct queue_entry
  86  }
  87  EXPORT_SYMBOL_GPL(rt2x00lib_txdone);
  88
  89 +static int rt2x00lib_rxdone_read_signal(struct rt2x00_dev *rt2x00dev,
  90 +                                       struct rxdone_entry_desc *rxdesc)
  91 +{
  92 +       struct ieee80211_supported_band *sband;
  93 +       const struct rt2x00_rate *rate;
  94 +       unsigned int i;
  95 +       int signal;
  96 +       int type;
  97 +
  98 +       /*
  99 +        * For non-HT rates the MCS value needs to contain the
 100 +        * actually used rate modulation (CCK or OFDM).
 101 +        */
 102 +       if (rxdesc->dev_flags & RXDONE_SIGNAL_MCS)
 103 +               signal = RATE_MCS(rxdesc->rate_mode, rxdesc->signal);
 104 +       else
 105 +               signal = rxdesc->signal;
 106 +
 107 +       type = (rxdesc->dev_flags & RXDONE_SIGNAL_MASK);
 108 +
 109 +       sband = &rt2x00dev->bands[rt2x00dev->curr_band];
 110 +       for (i = 0; i < sband->n_bitrates; i++) {
 111 +               rate = rt2x00_get_rate(sband->bitrates[i].hw_value);
 112 +
 113 +               if (((type == RXDONE_SIGNAL_PLCP) &&
 114 +                    (rate->plcp == signal)) ||
 115 +                   ((type == RXDONE_SIGNAL_BITRATE) &&
 116 +                     (rate->bitrate == signal)) ||
 117 +                   ((type == RXDONE_SIGNAL_MCS) &&
 118 +                     (rate->mcs == signal))) {
 119 +                       return i;
 120 +               }
 121 +       }
 122 +
 123 +       WARNING(rt2x00dev, "Frame received with unrecognized signal, "
 124 +               "signal=0x%.4x, type=%d.\n", signal, type);
 125 +       return 0;
 126 +}
 127 +
 128  void rt2x00lib_rxdone(struct rt2x00_dev *rt2x00dev,
 129                       struct queue_entry *entry)
 130  {
 131         struct rxdone_entry_desc rxdesc;
 132         struct sk_buff *skb;
 133         struct ieee80211_rx_status *rx_status = &rt2x00dev->rx_status;
 134 -       struct ieee80211_supported_band *sband;
 135 -       const struct rt2x00_rate *rate;
 136         unsigned int header_length;
 137         unsigned int align;
 138 -       unsigned int i;
 139 -       int idx = -1;
 140 +       int rate_idx;
 141
 142         /*
 143          * Allocate a new sk_buffer. If no new buffer available, drop the
 144 @@ -375,26 +411,17 @@ void rt2x00lib_rxdone(struct rt2x00_dev
 145         skb_trim(entry->skb, rxdesc.size);
 146
 147         /*
 148 -        * Update RX statistics.
 149 -        */
 150 -       sband = &rt2x00dev->bands[rt2x00dev->curr_band];
 151 -       for (i = 0; i < sband->n_bitrates; i++) {
 152 -               rate = rt2x00_get_rate(sband->bitrates[i].hw_value);
 153 -
 154 -               if (((rxdesc.dev_flags & RXDONE_SIGNAL_PLCP) &&
 155 -                    (rate->plcp == rxdesc.signal)) ||
 156 -                   ((rxdesc.dev_flags & RXDONE_SIGNAL_BITRATE) &&
 157 -                     (rate->bitrate == rxdesc.signal))) {
 158 -                       idx = i;
 159 -                       break;
 160 -               }
 161 -       }
 162 -
 163 -       if (idx < 0) {
 164 -               WARNING(rt2x00dev, "Frame received with unrecognized signal,"
 165 -                       "signal=0x%.2x, type=%d.\n", rxdesc.signal,
 166 -                       (rxdesc.dev_flags & RXDONE_SIGNAL_MASK));
 167 -               idx = 0;
 168 +        * Check if the frame was received using HT. In that case,
 169 +        * the rate is the MCS index and should be passed to mac80211
 170 +        * directly. Otherwise we need to translate the signal to
 171 +        * the correct bitrate index.
 172 +        */
 173 +       if (rxdesc.rate_mode == RATE_MODE_CCK ||
 174 +           rxdesc.rate_mode == RATE_MODE_OFDM) {
 175 +               rate_idx = rt2x00lib_rxdone_read_signal(rt2x00dev, &rxdesc);
 176 +       } else {
 177 +               rxdesc.flags |= RX_FLAG_HT;
 178 +               rate_idx = rxdesc.signal;
 179         }
 180
 181         /*
 182 @@ -404,7 +431,7 @@ void rt2x00lib_rxdone(struct rt2x00_dev
 183         rt2x00debug_update_crypto(rt2x00dev, &rxdesc);
 184
 185         rx_status->mactime = rxdesc.timestamp;
 186 -       rx_status->rate_idx = idx;
 187 +       rx_status->rate_idx = rate_idx;
 188         rx_status->qual = rt2x00link_calculate_signal(rt2x00dev, rxdesc.rssi);
 189         rx_status->signal = rxdesc.rssi;
 190         rx_status->noise = rxdesc.noise;
 191 @@ -439,72 +466,84 @@ const struct rt2x00_rate rt2x00_supporte
 192                 .bitrate = 10,
 193                 .ratemask = BIT(0),
 194                 .plcp = 0x00,
 195 +               .mcs = RATE_MCS(RATE_MODE_CCK, 0),
 196         },
 197         {
 198                 .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
 199                 .bitrate = 20,
 200                 .ratemask = BIT(1),
 201                 .plcp = 0x01,
 202 +               .mcs = RATE_MCS(RATE_MODE_CCK, 1),
 203         },
 204         {
 205                 .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
 206                 .bitrate = 55,
 207                 .ratemask = BIT(2),
 208                 .plcp = 0x02,
 209 +               .mcs = RATE_MCS(RATE_MODE_CCK, 2),
 210         },
 211         {
 212                 .flags = DEV_RATE_CCK | DEV_RATE_SHORT_PREAMBLE,
 213                 .bitrate = 110,
 214                 .ratemask = BIT(3),
 215                 .plcp = 0x03,
 216 +               .mcs = RATE_MCS(RATE_MODE_CCK, 3),
 217         },
 218         {
 219                 .flags = DEV_RATE_OFDM,
 220                 .bitrate = 60,
 221                 .ratemask = BIT(4),
 222                 .plcp = 0x0b,
 223 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 0),
 224         },
 225         {
 226                 .flags = DEV_RATE_OFDM,
 227                 .bitrate = 90,
 228                 .ratemask = BIT(5),
 229                 .plcp = 0x0f,
 230 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 1),
 231         },
 232         {
 233                 .flags = DEV_RATE_OFDM,
 234                 .bitrate = 120,
 235                 .ratemask = BIT(6),
 236                 .plcp = 0x0a,
 237 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 2),
 238         },
 239         {
 240                 .flags = DEV_RATE_OFDM,
 241                 .bitrate = 180,
 242                 .ratemask = BIT(7),
 243                 .plcp = 0x0e,
 244 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 3),
 245         },
 246         {
 247                 .flags = DEV_RATE_OFDM,
 248                 .bitrate = 240,
 249                 .ratemask = BIT(8),
 250                 .plcp = 0x09,
 251 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 4),
 252         },
 253         {
 254                 .flags = DEV_RATE_OFDM,
 255                 .bitrate = 360,
 256                 .ratemask = BIT(9),
 257                 .plcp = 0x0d,
 258 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 5),
 259         },
 260         {
 261                 .flags = DEV_RATE_OFDM,
 262                 .bitrate = 480,
 263                 .ratemask = BIT(10),
 264                 .plcp = 0x08,
 265 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 6),
 266         },
 267         {
 268                 .flags = DEV_RATE_OFDM,
 269                 .bitrate = 540,
 270                 .ratemask = BIT(11),
 271                 .plcp = 0x0c,
 272 +               .mcs = RATE_MCS(RATE_MODE_OFDM, 7),
 273         },
 274  };
 275
 276 @@ -580,6 +619,8 @@ static int rt2x00lib_probe_hw_modes(stru
 277                 rt2x00dev->bands[IEEE80211_BAND_2GHZ].bitrates = rates;
 278                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 279                     &rt2x00dev->bands[IEEE80211_BAND_2GHZ];
 280 +               memcpy(&rt2x00dev->bands[IEEE80211_BAND_2GHZ].ht_cap,
 281 +                      &spec->ht, sizeof(spec->ht));
 282         }
 283
 284         /*
 285 @@ -596,6 +637,8 @@ static int rt2x00lib_probe_hw_modes(stru
 286                 rt2x00dev->bands[IEEE80211_BAND_5GHZ].bitrates = &rates[4];
 287                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 288                     &rt2x00dev->bands[IEEE80211_BAND_5GHZ];
 289 +               memcpy(&rt2x00dev->bands[IEEE80211_BAND_5GHZ].ht_cap,
 290 +                      &spec->ht, sizeof(spec->ht));
 291         }
 292
 293         return 0;
 294 --- /dev/null
 295 +++ b/drivers/net/wireless/rt2x00/rt2x00ht.c
 296 @@ -0,0 +1,69 @@
 297 +/*
 298 +       Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
 299 +       <http://rt2x00.serialmonkey.com>
 300 +
 301 +       This program is free software; you can redistribute it and/or modify
 302 +       it under the terms of the GNU General Public License as published by
 303 +       the Free Software Foundation; either version 2 of the License, or
 304 +       (at your option) any later version.
 305 +
 306 +       This program is distributed in the hope that it will be useful,
 307 +       but WITHOUT ANY WARRANTY; without even the implied warranty of
 308 +       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 309 +       GNU General Public License for more details.
 310 +
 311 +       You should have received a copy of the GNU General Public License
 312 +       along with this program; if not, write to the
 313 +       Free Software Foundation, Inc.,
 314 +       59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 315 + */
 316 +
 317 +/*
 318 +       Module: rt2x00lib
 319 +       Abstract: rt2x00 HT specific routines.
 320 + */
 321 +
 322 +#include <linux/kernel.h>
 323 +#include <linux/module.h>
 324 +
 325 +#include "rt2x00.h"
 326 +#include "rt2x00lib.h"
 327 +
 328 +void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
 329 +                                  struct txentry_desc *txdesc,
 330 +                                  struct ieee80211_rate *rate)
 331 +{
 332 +       struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
 333 +       const struct rt2x00_rate *hwrate = rt2x00_get_rate(rate->hw_value);
 334 +
 335 +       if (tx_info->control.sta)
 336 +               txdesc->mpdu_density =
 337 +                   tx_info->control.sta->ht_cap.ampdu_density;
 338 +       else
 339 +               txdesc->mpdu_density = 0;
 340 +
 341 +       txdesc->ba_size = 0;    /* FIXME: What value is needed? */
 342 +       txdesc->stbc = 0;       /* FIXME: What value is needed? */
 343 +
 344 +       txdesc->mcs = rt2x00_get_rate_mcs(hwrate->mcs);
 345 +       if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 346 +               txdesc->mcs |= 0x08;
 347 +
 348 +       /*
 349 +        * Convert flags
 350 +        */
 351 +       if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
 352 +               __set_bit(ENTRY_TXD_HT_AMPDU, &txdesc->flags);
 353 +
 354 +       /*
 355 +        * Determine HT Mix/Greenfield rate mode
 356 +        */
 357 +       if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
 358 +               txdesc->rate_mode = RATE_MODE_HT_MIX;
 359 +       if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)
 360 +               txdesc->rate_mode = RATE_MODE_HT_GREENFIELD;
 361 +       if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 362 +               __set_bit(ENTRY_TXD_HT_BW_40, &txdesc->flags);
 363 +       if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)
 364 +               __set_bit(ENTRY_TXD_HT_SHORT_GI, &txdesc->flags);
 365 +}
 366 --- a/drivers/net/wireless/rt2x00/rt2x00lib.h
 367 +++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
 368 @@ -48,6 +48,7 @@ struct rt2x00_rate {
 369         unsigned short ratemask;
 370
 371         unsigned short plcp;
 372 +       unsigned short mcs;
 373  };
 374
 375  extern const struct rt2x00_rate rt2x00_supported_rates[12];
 376 @@ -57,6 +58,14 @@ static inline const struct rt2x00_rate *
 377         return &rt2x00_supported_rates[hw_value & 0xff];
 378  }
 379
 380 +#define RATE_MCS(__mode, __mcs) \
 381 +       ( (((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff) )
 382 +
 383 +static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
 384 +{
 385 +       return (mcs_value & 0x00ff);
 386 +}
 387 +
 388  /*
 389   * Radio control handlers.
 390   */
 391 @@ -330,6 +339,21 @@ static inline void rt2x00crypto_rx_inser
 392  #endif /* CONFIG_RT2X00_LIB_CRYPTO */
 393
 394  /*
 395 + * HT handlers.
 396 + */
 397 +#ifdef CONFIG_RT2X00_LIB_HT
 398 +void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
 399 +                                  struct txentry_desc *txdesc,
 400 +                                  struct ieee80211_rate *rate);
 401 +#else
 402 +static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
 403 +                                                struct txentry_desc *txdesc,
 404 +                                                struct ieee80211_rate *rate)
 405 +{
 406 +}
 407 +#endif /* CONFIG_RT2X00_LIB_HT */
 408 +
 409 +/*
 410   * RFkill handlers.
 411   */
 412  #ifdef CONFIG_RT2X00_LIB_RFKILL
 413 --- a/drivers/net/wireless/rt2x00/rt2x00queue.c
 414 +++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
 415 @@ -325,6 +325,7 @@ static void rt2x00queue_create_tx_descri
 416          * Apply TX descriptor handling by components
 417          */
 418         rt2x00crypto_create_tx_descriptor(entry, txdesc);
 419 +       rt2x00ht_create_tx_descriptor(entry, txdesc, rate);
 420         rt2x00queue_create_tx_descriptor_seq(entry, txdesc);
 421         rt2x00queue_create_tx_descriptor_plcp(entry, txdesc, rate);
 422  }
 423 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h
 424 +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
 425 @@ -145,6 +145,7 @@ static inline struct skb_frame_desc* get
 426   *
 427   * @RXDONE_SIGNAL_PLCP: Signal field contains the plcp value.
 428   * @RXDONE_SIGNAL_BITRATE: Signal field contains the bitrate value.
 429 + * @RXDONE_SIGNAL_MCS: Signal field contains the mcs value.
 430   * @RXDONE_MY_BSS: Does this frame originate from device's BSS.
 431   * @RXDONE_CRYPTO_IV: Driver provided IV/EIV data.
 432   * @RXDONE_CRYPTO_ICV: Driver provided ICV data.
 433 @@ -152,9 +153,10 @@ static inline struct skb_frame_desc* get
 434  enum rxdone_entry_desc_flags {
 435         RXDONE_SIGNAL_PLCP = 1 << 0,
 436         RXDONE_SIGNAL_BITRATE = 1 << 1,
 437 -       RXDONE_MY_BSS = 1 << 2,
 438 -       RXDONE_CRYPTO_IV = 1 << 3,
 439 -       RXDONE_CRYPTO_ICV = 1 << 4,
 440 +       RXDONE_SIGNAL_MCS = 1 << 2,
 441 +       RXDONE_MY_BSS = 1 << 3,
 442 +       RXDONE_CRYPTO_IV = 1 << 4,
 443 +       RXDONE_CRYPTO_ICV = 1 << 5,
 444  };
 445
 446  /**
 447 @@ -163,7 +165,7 @@ enum rxdone_entry_desc_flags {
 448   * from &rxdone_entry_desc to a signal value type.
 449   */
 450  #define RXDONE_SIGNAL_MASK \
 451 -       ( RXDONE_SIGNAL_PLCP | RXDONE_SIGNAL_BITRATE )
 452 +       ( RXDONE_SIGNAL_PLCP | RXDONE_SIGNAL_BITRATE | RXDONE_SIGNAL_MCS )
 453
 454  /**
 455   * struct rxdone_entry_desc: RX Entry descriptor
 456 @@ -177,6 +179,7 @@ enum rxdone_entry_desc_flags {
 457   * @size: Data size of the received frame.
 458   * @flags: MAC80211 receive flags (See &enum mac80211_rx_flags).
 459   * @dev_flags: Ralink receive flags (See &enum rxdone_entry_desc_flags).
 460 + * @rate_mode: Rate mode (See @enum rate_modulation).
 461   * @cipher: Cipher type used during decryption.
 462   * @cipher_status: Decryption status.
 463   * @iv: IV/EIV data used during decryption.
 464 @@ -190,6 +193,7 @@ struct rxdone_entry_desc {
 465         int size;
 466         int flags;
 467         int dev_flags;
 468 +       u16 rate_mode;
 469         u8 cipher;
 470         u8 cipher_status;
 471
 472 @@ -243,6 +247,9 @@ struct txdone_entry_desc {
 473   * @ENTRY_TXD_ENCRYPT_PAIRWISE: Use pairwise key table (instead of shared).
 474   * @ENTRY_TXD_ENCRYPT_IV: Generate IV/EIV in hardware.
 475   * @ENTRY_TXD_ENCRYPT_MMIC: Generate MIC in hardware.
 476 + * @ENTRY_TXD_HT_AMPDU: This frame is part of an AMPDU.
 477 + * @ENTRY_TXD_HT_BW_40: Use 40MHz Bandwidth.
 478 + * @ENTRY_TXD_HT_SHORT_GI: Use short GI.
 479   */
 480  enum txentry_desc_flags {
 481         ENTRY_TXD_RTS_FRAME,
 482 @@ -258,6 +265,9 @@ enum txentry_desc_flags {
 483         ENTRY_TXD_ENCRYPT_PAIRWISE,
 484         ENTRY_TXD_ENCRYPT_IV,
 485         ENTRY_TXD_ENCRYPT_MMIC,
 486 +       ENTRY_TXD_HT_AMPDU,
 487 +       ENTRY_TXD_HT_BW_40,
 488 +       ENTRY_TXD_HT_SHORT_GI,
 489  };
 490
 491  /**
 492 @@ -271,7 +281,11 @@ enum txentry_desc_flags {
 493   * @length_low: PLCP length low word.
 494   * @signal: PLCP signal.
 495   * @service: PLCP service.
 496 + * @msc: MCS.
 497 + * @stbc: STBC.
 498 + * @ba_size: BA size.
 499   * @rate_mode: Rate mode (See @enum rate_modulation).
 500 + * @mpdu_density: MDPU density.
 501   * @retry_limit: Max number of retries.
 502   * @aifs: AIFS value.
 503   * @ifs: IFS value.
 504 @@ -291,7 +305,11 @@ struct txentry_desc {
 505         u16 signal;
 506         u16 service;
 507
 508 +       u16 mcs;
 509 +       u16 stbc;
 510 +       u16 ba_size;
 511         u16 rate_mode;
 512 +       u16 mpdu_density;
 513
 514         short retry_limit;
 515         short aifs;