diff options
Diffstat (limited to 'package/kernel/mac80211/patches/subsys/338-mac80211-minstrel_ht-add-support-for-OFDM-rates-on-n.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/338-mac80211-minstrel_ht-add-support-for-OFDM-rates-on-n.patch | 762 |
1 files changed, 0 insertions, 762 deletions
diff --git a/package/kernel/mac80211/patches/subsys/338-mac80211-minstrel_ht-add-support-for-OFDM-rates-on-n.patch b/package/kernel/mac80211/patches/subsys/338-mac80211-minstrel_ht-add-support-for-OFDM-rates-on-n.patch deleted file mode 100644 index abefde7109..0000000000 --- a/package/kernel/mac80211/patches/subsys/338-mac80211-minstrel_ht-add-support-for-OFDM-rates-on-n.patch +++ /dev/null @@ -1,762 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Date: Sat, 26 Dec 2020 13:56:42 +0100 -Subject: [PATCH] mac80211: minstrel_ht: add support for OFDM rates on - non-HT clients - -The legacy minstrel code is essentially unmaintained and receives only very -little testing. In order to bring the significant algorithm improvements from -minstrel_ht to legacy clients, this patch adds support for OFDM rates to -minstrel_ht and removes the fallback to the legacy codepath. -This also makes it work much better on hardware with rate selection constraints, -e.g. mt76. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/net/mac80211/rc80211_minstrel.h -+++ b/net/mac80211/rc80211_minstrel.h -@@ -152,6 +152,7 @@ struct minstrel_priv { - unsigned int lookaround_rate_mrr; - - u8 cck_rates[4]; -+ u8 ofdm_rates[NUM_NL80211_BANDS][8]; - - #ifdef CPTCFG_MAC80211_DEBUGFS - /* ---- a/net/mac80211/rc80211_minstrel_ht.c -+++ b/net/mac80211/rc80211_minstrel_ht.c -@@ -163,6 +163,38 @@ - - #define CCK_GROUP __CCK_GROUP(CCK_GROUP_SHIFT) - -+#define OFDM_DURATION(_bitrate) \ -+ (1000 * (16 /* SIFS + signal ext */ + \ -+ 16 /* T_PREAMBLE */ + \ -+ 4 /* T_SIGNAL */ + \ -+ 4 * (((16 + 80 * (AVG_PKT_SIZE + 4) + 6) / \ -+ ((_bitrate) * 4))))) -+ -+#define OFDM_DURATION_LIST(_s) \ -+ OFDM_DURATION(60) >> _s, \ -+ OFDM_DURATION(90) >> _s, \ -+ OFDM_DURATION(120) >> _s, \ -+ OFDM_DURATION(180) >> _s, \ -+ OFDM_DURATION(240) >> _s, \ -+ OFDM_DURATION(360) >> _s, \ -+ OFDM_DURATION(480) >> _s, \ -+ OFDM_DURATION(540) >> _s -+ -+#define __OFDM_GROUP(_s) \ -+ [MINSTREL_OFDM_GROUP] = { \ -+ .streams = 1, \ -+ .flags = 0, \ -+ .shift = _s, \ -+ .duration = { \ -+ OFDM_DURATION_LIST(_s), \ -+ } \ -+ } -+ -+#define OFDM_GROUP_SHIFT \ -+ GROUP_SHIFT(OFDM_DURATION(60)) -+ -+#define OFDM_GROUP __OFDM_GROUP(OFDM_GROUP_SHIFT) -+ - - static bool minstrel_vht_only = true; - module_param(minstrel_vht_only, bool, 0644); -@@ -199,6 +231,7 @@ const struct mcs_group minstrel_mcs_grou - MCS_GROUP(4, 1, BW_40), - - CCK_GROUP, -+ OFDM_GROUP, - - VHT_GROUP(1, 0, BW_20), - VHT_GROUP(2, 0, BW_20), -@@ -231,6 +264,8 @@ const struct mcs_group minstrel_mcs_grou - VHT_GROUP(4, 1, BW_80), - }; - -+const s16 minstrel_cck_bitrates[4] = { 10, 20, 55, 110 }; -+const s16 minstrel_ofdm_bitrates[8] = { 60, 90, 120, 180, 240, 360, 480, 540 }; - static u8 sample_table[SAMPLE_COLUMNS][MCS_GROUP_RATES] __read_mostly; - - static void -@@ -275,6 +310,13 @@ minstrel_get_valid_vht_rates(int bw, int - return 0x3ff & ~mask; - } - -+static bool -+minstrel_ht_is_legacy_group(int group) -+{ -+ return group == MINSTREL_CCK_GROUP || -+ group == MINSTREL_OFDM_GROUP; -+} -+ - /* - * Look up an MCS group index based on mac80211 rate information - */ -@@ -304,21 +346,34 @@ minstrel_ht_get_stats(struct minstrel_pr - if (rate->flags & IEEE80211_TX_RC_MCS) { - group = minstrel_ht_get_group_idx(rate); - idx = rate->idx % 8; -- } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { -+ goto out; -+ } -+ -+ if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { - group = minstrel_vht_get_group_idx(rate); - idx = ieee80211_rate_get_vht_mcs(rate); -- } else { -- group = MINSTREL_CCK_GROUP; -+ goto out; -+ } - -- for (idx = 0; idx < ARRAY_SIZE(mp->cck_rates); idx++) -- if (rate->idx == mp->cck_rates[idx]) -- break; -+ group = MINSTREL_CCK_GROUP; -+ for (idx = 0; idx < ARRAY_SIZE(mp->cck_rates); idx++) { -+ if (rate->idx != mp->cck_rates[idx]) -+ continue; - - /* short preamble */ - if ((mi->supported[group] & BIT(idx + 4)) && - (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)) -- idx += 4; -+ idx += 4; -+ goto out; - } -+ -+ group = MINSTREL_OFDM_GROUP; -+ for (idx = 0; idx < ARRAY_SIZE(mp->ofdm_rates[0]); idx++) -+ if (rate->idx == mp->ofdm_rates[mi->band][idx]) -+ goto out; -+ -+ idx = 0; -+out: - return &mi->groups[group].rates[idx]; - } - -@@ -352,7 +407,7 @@ minstrel_ht_get_tp_avg(struct minstrel_h - if (prob_avg < MINSTREL_FRAC(10, 100)) - return 0; - -- if (group == MINSTREL_CCK_GROUP) -+ if (minstrel_ht_is_legacy_group(group)) - overhead = mi->overhead_legacy; - else - ampdu_len = minstrel_ht_avg_ampdu_len(mi); -@@ -439,8 +494,8 @@ minstrel_ht_set_best_prob_rate(struct mi - /* if max_tp_rate[0] is from MCS_GROUP max_prob_rate get selected from - * MCS_GROUP as well as CCK_GROUP rates do not allow aggregation */ - max_tp_group = mi->max_tp_rate[0] / MCS_GROUP_RATES; -- if((index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) && -- (max_tp_group != MINSTREL_CCK_GROUP)) -+ if (minstrel_ht_is_legacy_group(index / MCS_GROUP_RATES) && -+ !minstrel_ht_is_legacy_group(max_tp_group)) - return; - - max_gpr_group = mg->max_group_prob_rate / MCS_GROUP_RATES; -@@ -476,13 +531,13 @@ minstrel_ht_set_best_prob_rate(struct mi - static void - minstrel_ht_assign_best_tp_rates(struct minstrel_ht_sta *mi, - u16 tmp_mcs_tp_rate[MAX_THR_RATES], -- u16 tmp_cck_tp_rate[MAX_THR_RATES]) -+ u16 tmp_legacy_tp_rate[MAX_THR_RATES]) - { - unsigned int tmp_group, tmp_idx, tmp_cck_tp, tmp_mcs_tp, tmp_prob; - int i; - -- tmp_group = tmp_cck_tp_rate[0] / MCS_GROUP_RATES; -- tmp_idx = tmp_cck_tp_rate[0] % MCS_GROUP_RATES; -+ tmp_group = tmp_legacy_tp_rate[0] / MCS_GROUP_RATES; -+ tmp_idx = tmp_legacy_tp_rate[0] % MCS_GROUP_RATES; - tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_avg; - tmp_cck_tp = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob); - -@@ -493,7 +548,7 @@ minstrel_ht_assign_best_tp_rates(struct - - if (tmp_cck_tp > tmp_mcs_tp) { - for(i = 0; i < MAX_THR_RATES; i++) { -- minstrel_ht_sort_best_tp_rates(mi, tmp_cck_tp_rate[i], -+ minstrel_ht_sort_best_tp_rates(mi, tmp_legacy_tp_rate[i], - tmp_mcs_tp_rate); - } - } -@@ -511,6 +566,9 @@ minstrel_ht_prob_rate_reduce_streams(str - int tmp_max_streams, group, tmp_idx, tmp_prob; - int tmp_tp = 0; - -+ if (!mi->sta->ht_cap.ht_supported) -+ return; -+ - tmp_max_streams = minstrel_mcs_groups[mi->max_tp_rate[0] / - MCS_GROUP_RATES].streams; - for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) { -@@ -675,7 +733,8 @@ minstrel_ht_update_stats(struct minstrel - struct minstrel_rate_stats *mrs; - int group, i, j, cur_prob; - u16 tmp_mcs_tp_rate[MAX_THR_RATES], tmp_group_tp_rate[MAX_THR_RATES]; -- u16 tmp_cck_tp_rate[MAX_THR_RATES], index; -+ u16 tmp_legacy_tp_rate[MAX_THR_RATES], index; -+ bool ht_supported = mi->sta->ht_cap.ht_supported; - - mi->sample_mode = MINSTREL_SAMPLE_IDLE; - -@@ -704,21 +763,29 @@ minstrel_ht_update_stats(struct minstrel - mi->sample_count = 0; - - memset(tmp_mcs_tp_rate, 0, sizeof(tmp_mcs_tp_rate)); -- memset(tmp_cck_tp_rate, 0, sizeof(tmp_cck_tp_rate)); -+ memset(tmp_legacy_tp_rate, 0, sizeof(tmp_legacy_tp_rate)); - if (mi->supported[MINSTREL_CCK_GROUP]) -- for (j = 0; j < ARRAY_SIZE(tmp_cck_tp_rate); j++) -- tmp_cck_tp_rate[j] = MINSTREL_CCK_GROUP * MCS_GROUP_RATES; -+ for (j = 0; j < ARRAY_SIZE(tmp_legacy_tp_rate); j++) -+ tmp_legacy_tp_rate[j] = MINSTREL_CCK_GROUP * MCS_GROUP_RATES; -+ else if (mi->supported[MINSTREL_OFDM_GROUP]) -+ for (j = 0; j < ARRAY_SIZE(tmp_legacy_tp_rate); j++) -+ tmp_legacy_tp_rate[j] = MINSTREL_OFDM_GROUP * MCS_GROUP_RATES; - - if (mi->supported[MINSTREL_VHT_GROUP_0]) - index = MINSTREL_VHT_GROUP_0 * MCS_GROUP_RATES; -- else -+ else if (ht_supported) - index = MINSTREL_HT_GROUP_0 * MCS_GROUP_RATES; -+ else if (mi->supported[MINSTREL_CCK_GROUP]) -+ index = MINSTREL_CCK_GROUP * MCS_GROUP_RATES; -+ else -+ index = MINSTREL_OFDM_GROUP * MCS_GROUP_RATES; - - for (j = 0; j < ARRAY_SIZE(tmp_mcs_tp_rate); j++) - tmp_mcs_tp_rate[j] = index; - - /* Find best rate sets within all MCS groups*/ - for (group = 0; group < ARRAY_SIZE(minstrel_mcs_groups); group++) { -+ u16 *tp_rate = tmp_mcs_tp_rate; - - mg = &mi->groups[group]; - if (!mi->supported[group]) -@@ -730,6 +797,9 @@ minstrel_ht_update_stats(struct minstrel - for(j = 0; j < MAX_THR_RATES; j++) - tmp_group_tp_rate[j] = MCS_GROUP_RATES * group; - -+ if (group == MINSTREL_CCK_GROUP && ht_supported) -+ tp_rate = tmp_legacy_tp_rate; -+ - for (i = 0; i < MCS_GROUP_RATES; i++) { - if (!(mi->supported[group] & BIT(i))) - continue; -@@ -745,13 +815,7 @@ minstrel_ht_update_stats(struct minstrel - continue; - - /* Find max throughput rate set */ -- if (group != MINSTREL_CCK_GROUP) { -- minstrel_ht_sort_best_tp_rates(mi, index, -- tmp_mcs_tp_rate); -- } else if (group == MINSTREL_CCK_GROUP) { -- minstrel_ht_sort_best_tp_rates(mi, index, -- tmp_cck_tp_rate); -- } -+ minstrel_ht_sort_best_tp_rates(mi, index, tp_rate); - - /* Find max throughput rate set within a group */ - minstrel_ht_sort_best_tp_rates(mi, index, -@@ -766,7 +830,8 @@ minstrel_ht_update_stats(struct minstrel - } - - /* Assign new rate set per sta */ -- minstrel_ht_assign_best_tp_rates(mi, tmp_mcs_tp_rate, tmp_cck_tp_rate); -+ minstrel_ht_assign_best_tp_rates(mi, tmp_mcs_tp_rate, -+ tmp_legacy_tp_rate); - memcpy(mi->max_tp_rate, tmp_mcs_tp_rate, sizeof(mi->max_tp_rate)); - - /* Try to increase robustness of max_prob_rate*/ -@@ -795,8 +860,11 @@ minstrel_ht_update_stats(struct minstrel - } - - static bool --minstrel_ht_txstat_valid(struct minstrel_priv *mp, struct ieee80211_tx_rate *rate) -+minstrel_ht_txstat_valid(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, -+ struct ieee80211_tx_rate *rate) - { -+ int i; -+ - if (rate->idx < 0) - return false; - -@@ -807,10 +875,15 @@ minstrel_ht_txstat_valid(struct minstrel - rate->flags & IEEE80211_TX_RC_VHT_MCS) - return true; - -- return rate->idx == mp->cck_rates[0] || -- rate->idx == mp->cck_rates[1] || -- rate->idx == mp->cck_rates[2] || -- rate->idx == mp->cck_rates[3]; -+ for (i = 0; i < ARRAY_SIZE(mp->cck_rates); i++) -+ if (rate->idx == mp->cck_rates[i]) -+ return true; -+ -+ for (i = 0; i < ARRAY_SIZE(mp->ofdm_rates[0]); i++) -+ if (rate->idx == mp->ofdm_rates[mi->band][i]) -+ return true; -+ -+ return false; - } - - static void -@@ -897,11 +970,6 @@ minstrel_ht_tx_status(void *priv, struct - bool sample_status = false; - int i; - -- if (!msp->is_ht) -- return mac80211_minstrel.tx_status_ext(priv, sband, -- &msp->legacy, st); -- -- - /* This packet was aggregated but doesn't carry status info */ - if ((info->flags & IEEE80211_TX_CTL_AMPDU) && - !(info->flags & IEEE80211_TX_STAT_AMPDU)) -@@ -930,10 +998,10 @@ minstrel_ht_tx_status(void *priv, struct - if (mi->sample_mode != MINSTREL_SAMPLE_IDLE) - rate_sample = minstrel_get_ratestats(mi, mi->sample_rate); - -- last = !minstrel_ht_txstat_valid(mp, &ar[0]); -+ last = !minstrel_ht_txstat_valid(mp, mi, &ar[0]); - for (i = 0; !last; i++) { - last = (i == IEEE80211_TX_MAX_RATES - 1) || -- !minstrel_ht_txstat_valid(mp, &ar[i + 1]); -+ !minstrel_ht_txstat_valid(mp, mi, &ar[i + 1]); - - rate = minstrel_ht_get_stats(mp, mi, &ar[i]); - if (rate == rate_sample) -@@ -1031,7 +1099,7 @@ minstrel_calc_retransmit(struct minstrel - ctime += (t_slot * cw) >> 1; - cw = min((cw << 1) | 1, mp->cw_max); - -- if (index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) { -+ if (minstrel_ht_is_legacy_group(index / MCS_GROUP_RATES)) { - overhead = mi->overhead_legacy; - overhead_rtscts = mi->overhead_legacy_rtscts; - } else { -@@ -1064,7 +1132,8 @@ static void - minstrel_ht_set_rate(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, - struct ieee80211_sta_rates *ratetbl, int offset, int index) - { -- const struct mcs_group *group = &minstrel_mcs_groups[index / MCS_GROUP_RATES]; -+ int group_idx = index / MCS_GROUP_RATES; -+ const struct mcs_group *group = &minstrel_mcs_groups[group_idx]; - struct minstrel_rate_stats *mrs; - u8 idx; - u16 flags = group->flags; -@@ -1083,13 +1152,17 @@ minstrel_ht_set_rate(struct minstrel_pri - ratetbl->rate[offset].count_rts = mrs->retry_count_rtscts; - } - -- if (index / MCS_GROUP_RATES == MINSTREL_CCK_GROUP) -+ index %= MCS_GROUP_RATES; -+ if (group_idx == MINSTREL_CCK_GROUP) - idx = mp->cck_rates[index % ARRAY_SIZE(mp->cck_rates)]; -+ else if (group_idx == MINSTREL_OFDM_GROUP) -+ idx = mp->ofdm_rates[mi->band][index % -+ ARRAY_SIZE(mp->ofdm_rates[0])]; - else if (flags & IEEE80211_TX_RC_VHT_MCS) - idx = ((group->streams - 1) << 4) | -- ((index % MCS_GROUP_RATES) & 0xF); -+ (index & 0xF); - else -- idx = index % MCS_GROUP_RATES + (group->streams - 1) * 8; -+ idx = index + (group->streams - 1) * 8; - - /* enable RTS/CTS if needed: - * - if station is in dynamic SMPS (and streams > 1) -@@ -1304,11 +1377,8 @@ minstrel_ht_get_rate(void *priv, struct - struct minstrel_priv *mp = priv; - int sample_idx; - -- if (!msp->is_ht) -- return mac80211_minstrel.get_rate(priv, sta, &msp->legacy, txrc); -- - if (!(info->flags & IEEE80211_TX_CTL_AMPDU) && -- mi->max_prob_rate / MCS_GROUP_RATES != MINSTREL_CCK_GROUP) -+ !minstrel_ht_is_legacy_group(mi->max_prob_rate / MCS_GROUP_RATES)) - minstrel_aggr_check(sta, txrc->skb); - - info->flags |= mi->tx_flags; -@@ -1349,6 +1419,9 @@ minstrel_ht_get_rate(void *priv, struct - if (sample_group == &minstrel_mcs_groups[MINSTREL_CCK_GROUP]) { - int idx = sample_idx % ARRAY_SIZE(mp->cck_rates); - rate->idx = mp->cck_rates[idx]; -+ } else if (sample_group == &minstrel_mcs_groups[MINSTREL_OFDM_GROUP]) { -+ int idx = sample_idx % ARRAY_SIZE(mp->ofdm_rates[0]); -+ rate->idx = mp->ofdm_rates[mi->band][idx]; - } else if (sample_group->flags & IEEE80211_TX_RC_VHT_MCS) { - ieee80211_rate_set_vht(rate, sample_idx % MCS_GROUP_RATES, - sample_group->streams); -@@ -1369,11 +1442,13 @@ minstrel_ht_update_cck(struct minstrel_p - if (sband->band != NL80211_BAND_2GHZ) - return; - -- if (!ieee80211_hw_check(mp->hw, SUPPORTS_HT_CCK_RATES)) -+ if (sta->ht_cap.ht_supported && -+ !ieee80211_hw_check(mp->hw, SUPPORTS_HT_CCK_RATES)) - return; - - for (i = 0; i < 4; i++) { -- if (!rate_supported(sta, sband->band, mp->cck_rates[i])) -+ if (mp->cck_rates[i] == 0xff || -+ !rate_supported(sta, sband->band, mp->cck_rates[i])) - continue; - - mi->supported[MINSTREL_CCK_GROUP] |= BIT(i); -@@ -1383,9 +1458,30 @@ minstrel_ht_update_cck(struct minstrel_p - } - - static void -+minstrel_ht_update_ofdm(struct minstrel_priv *mp, struct minstrel_ht_sta *mi, -+ struct ieee80211_supported_band *sband, -+ struct ieee80211_sta *sta) -+{ -+ const u8 *rates; -+ int i; -+ -+ if (sta->ht_cap.ht_supported) -+ return; -+ -+ rates = mp->ofdm_rates[sband->band]; -+ for (i = 0; i < ARRAY_SIZE(mp->ofdm_rates[0]); i++) { -+ if (rates[i] == 0xff || -+ !rate_supported(sta, sband->band, rates[i])) -+ continue; -+ -+ mi->supported[MINSTREL_OFDM_GROUP] |= BIT(i); -+ } -+} -+ -+static void - minstrel_ht_update_caps(void *priv, struct ieee80211_supported_band *sband, - struct cfg80211_chan_def *chandef, -- struct ieee80211_sta *sta, void *priv_sta) -+ struct ieee80211_sta *sta, void *priv_sta) - { - struct minstrel_priv *mp = priv; - struct minstrel_ht_sta_priv *msp = priv_sta; -@@ -1401,10 +1497,6 @@ minstrel_ht_update_caps(void *priv, stru - int stbc; - int i; - -- /* fall back to the old minstrel for legacy stations */ -- if (!sta->ht_cap.ht_supported) -- goto use_legacy; -- - BUILD_BUG_ON(ARRAY_SIZE(minstrel_mcs_groups) != MINSTREL_GROUPS_NB); - - if (vht_cap->vht_supported) -@@ -1412,10 +1504,10 @@ minstrel_ht_update_caps(void *priv, stru - else - use_vht = 0; - -- msp->is_ht = true; - memset(mi, 0, sizeof(*mi)); - - mi->sta = sta; -+ mi->band = sband->band; - mi->last_stats_update = jiffies; - - ack_dur = ieee80211_frame_duration(sband->band, 10, 60, 1, 1, 0); -@@ -1464,10 +1556,8 @@ minstrel_ht_update_caps(void *priv, stru - int bw, nss; - - mi->supported[i] = 0; -- if (i == MINSTREL_CCK_GROUP) { -- minstrel_ht_update_cck(mp, mi, sband, sta); -+ if (minstrel_ht_is_legacy_group(i)) - continue; -- } - - if (gflags & IEEE80211_TX_RC_SHORT_GI) { - if (gflags & IEEE80211_TX_RC_40_MHZ_WIDTH) { -@@ -1528,22 +1618,12 @@ minstrel_ht_update_caps(void *priv, stru - n_supported++; - } - -- if (!n_supported) -- goto use_legacy; -+ minstrel_ht_update_cck(mp, mi, sband, sta); -+ minstrel_ht_update_ofdm(mp, mi, sband, sta); - - /* create an initial rate table with the lowest supported rates */ - minstrel_ht_update_stats(mp, mi, true); - minstrel_ht_update_rates(mp, mi); -- -- return; -- --use_legacy: -- msp->is_ht = false; -- memset(&msp->legacy, 0, sizeof(msp->legacy)); -- msp->legacy.r = msp->ratelist; -- msp->legacy.sample_table = msp->sample_table; -- return mac80211_minstrel.rate_init(priv, sband, chandef, sta, -- &msp->legacy); - } - - static void -@@ -1611,40 +1691,70 @@ minstrel_ht_free_sta(void *priv, struct - } - - static void --minstrel_ht_init_cck_rates(struct minstrel_priv *mp) -+minstrel_ht_fill_rate_array(u8 *dest, struct ieee80211_supported_band *sband, -+ const s16 *bitrates, int n_rates, u32 rate_flags) - { -- static const int bitrates[4] = { 10, 20, 55, 110 }; -- struct ieee80211_supported_band *sband; -- u32 rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef); - int i, j; - -- sband = mp->hw->wiphy->bands[NL80211_BAND_2GHZ]; -- if (!sband) -- return; -- - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - -- if (rate->flags & IEEE80211_RATE_ERP_G) -- continue; -- - if ((rate_flags & sband->bitrates[i].flags) != rate_flags) - continue; - -- for (j = 0; j < ARRAY_SIZE(bitrates); j++) { -+ for (j = 0; j < n_rates; j++) { - if (rate->bitrate != bitrates[j]) - continue; - -- mp->cck_rates[j] = i; -+ dest[j] = i; - break; - } - } - } - -+static void -+minstrel_ht_init_cck_rates(struct minstrel_priv *mp) -+{ -+ static const s16 bitrates[4] = { 10, 20, 55, 110 }; -+ struct ieee80211_supported_band *sband; -+ u32 rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef); -+ -+ memset(mp->cck_rates, 0xff, sizeof(mp->cck_rates)); -+ sband = mp->hw->wiphy->bands[NL80211_BAND_2GHZ]; -+ if (!sband) -+ return; -+ -+ BUILD_BUG_ON(ARRAY_SIZE(mp->cck_rates) != ARRAY_SIZE(bitrates)); -+ minstrel_ht_fill_rate_array(mp->cck_rates, sband, -+ minstrel_cck_bitrates, -+ ARRAY_SIZE(minstrel_cck_bitrates), -+ rate_flags); -+} -+ -+static void -+minstrel_ht_init_ofdm_rates(struct minstrel_priv *mp, enum nl80211_band band) -+{ -+ static const s16 bitrates[8] = { 60, 90, 120, 180, 240, 360, 480, 540 }; -+ struct ieee80211_supported_band *sband; -+ u32 rate_flags = ieee80211_chandef_rate_flags(&mp->hw->conf.chandef); -+ -+ memset(mp->ofdm_rates[band], 0xff, sizeof(mp->ofdm_rates[band])); -+ sband = mp->hw->wiphy->bands[band]; -+ if (!sband) -+ return; -+ -+ BUILD_BUG_ON(ARRAY_SIZE(mp->ofdm_rates[band]) != ARRAY_SIZE(bitrates)); -+ minstrel_ht_fill_rate_array(mp->ofdm_rates[band], sband, -+ minstrel_ofdm_bitrates, -+ ARRAY_SIZE(minstrel_ofdm_bitrates), -+ rate_flags); -+} -+ - static void * - minstrel_ht_alloc(struct ieee80211_hw *hw) - { - struct minstrel_priv *mp; -+ int i; - - mp = kzalloc(sizeof(struct minstrel_priv), GFP_ATOMIC); - if (!mp) -@@ -1681,6 +1791,8 @@ minstrel_ht_alloc(struct ieee80211_hw *h - mp->new_avg = true; - - minstrel_ht_init_cck_rates(mp); -+ for (i = 0; i < ARRAY_SIZE(mp->hw->wiphy->bands); i++) -+ minstrel_ht_init_ofdm_rates(mp, i); - - return mp; - } -@@ -1713,9 +1825,6 @@ static u32 minstrel_ht_get_expected_thro - struct minstrel_ht_sta *mi = &msp->ht; - int i, j, prob, tp_avg; - -- if (!msp->is_ht) -- return mac80211_minstrel.get_expected_throughput(priv_sta); -- - i = mi->max_tp_rate[0] / MCS_GROUP_RATES; - j = mi->max_tp_rate[0] % MCS_GROUP_RATES; - prob = mi->groups[i].rates[j].prob_avg; ---- a/net/mac80211/rc80211_minstrel_ht.h -+++ b/net/mac80211/rc80211_minstrel_ht.h -@@ -18,14 +18,15 @@ - MINSTREL_HT_STREAM_GROUPS) - #define MINSTREL_VHT_GROUPS_NB (MINSTREL_MAX_STREAMS * \ - MINSTREL_VHT_STREAM_GROUPS) --#define MINSTREL_CCK_GROUPS_NB 1 -+#define MINSTREL_LEGACY_GROUPS_NB 2 - #define MINSTREL_GROUPS_NB (MINSTREL_HT_GROUPS_NB + \ - MINSTREL_VHT_GROUPS_NB + \ -- MINSTREL_CCK_GROUPS_NB) -+ MINSTREL_LEGACY_GROUPS_NB) - - #define MINSTREL_HT_GROUP_0 0 - #define MINSTREL_CCK_GROUP (MINSTREL_HT_GROUP_0 + MINSTREL_HT_GROUPS_NB) --#define MINSTREL_VHT_GROUP_0 (MINSTREL_CCK_GROUP + 1) -+#define MINSTREL_OFDM_GROUP (MINSTREL_CCK_GROUP + 1) -+#define MINSTREL_VHT_GROUP_0 (MINSTREL_OFDM_GROUP + 1) - - #define MCS_GROUP_RATES 10 - -@@ -37,6 +38,8 @@ struct mcs_group { - u16 duration[MCS_GROUP_RATES]; - }; - -+extern const s16 minstrel_cck_bitrates[4]; -+extern const s16 minstrel_ofdm_bitrates[8]; - extern const struct mcs_group minstrel_mcs_groups[]; - - struct minstrel_mcs_group_data { -@@ -99,6 +102,8 @@ struct minstrel_ht_sta { - /* current MCS group to be sampled */ - u8 sample_group; - -+ u8 band; -+ - /* Bitfield of supported MCS rates of all groups */ - u16 supported[MINSTREL_GROUPS_NB]; - -@@ -107,13 +112,9 @@ struct minstrel_ht_sta { - }; - - struct minstrel_ht_sta_priv { -- union { -- struct minstrel_ht_sta ht; -- struct minstrel_sta_info legacy; -- }; -+ struct minstrel_ht_sta ht; - void *ratelist; - void *sample_table; -- bool is_ht; - }; - - void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir); ---- a/net/mac80211/rc80211_minstrel_ht_debugfs.c -+++ b/net/mac80211/rc80211_minstrel_ht_debugfs.c -@@ -52,7 +52,6 @@ minstrel_ht_stats_dump(struct minstrel_h - - for (j = 0; j < MCS_GROUP_RATES; j++) { - struct minstrel_rate_stats *mrs = &mi->groups[i].rates[j]; -- static const int bitrates[4] = { 10, 20, 55, 110 }; - int idx = i * MCS_GROUP_RATES + j; - unsigned int duration; - -@@ -67,6 +66,9 @@ minstrel_ht_stats_dump(struct minstrel_h - p += sprintf(p, "VHT%c0 ", htmode); - p += sprintf(p, "%cGI ", gimode); - p += sprintf(p, "%d ", mg->streams); -+ } else if (i == MINSTREL_OFDM_GROUP) { -+ p += sprintf(p, "OFDM "); -+ p += sprintf(p, "1 "); - } else { - p += sprintf(p, "CCK "); - p += sprintf(p, "%cP ", j < 4 ? 'L' : 'S'); -@@ -84,7 +86,12 @@ minstrel_ht_stats_dump(struct minstrel_h - } else if (gflags & IEEE80211_TX_RC_VHT_MCS) { - p += sprintf(p, " MCS%-1u/%1u", j, mg->streams); - } else { -- int r = bitrates[j % 4]; -+ int r; -+ -+ if (i == MINSTREL_OFDM_GROUP) -+ r = minstrel_ofdm_bitrates[j % 8]; -+ else -+ r = minstrel_cck_bitrates[j % 4]; - - p += sprintf(p, " %2u.%1uM", r / 10, r % 10); - } -@@ -124,16 +131,8 @@ minstrel_ht_stats_open(struct inode *ino - struct minstrel_ht_sta *mi = &msp->ht; - struct minstrel_debugfs_info *ms; - unsigned int i; -- int ret; - char *p; - -- if (!msp->is_ht) { -- inode->i_private = &msp->legacy; -- ret = minstrel_stats_open(inode, file); -- inode->i_private = msp; -- return ret; -- } -- - ms = kmalloc(32768, GFP_KERNEL); - if (!ms) - return -ENOMEM; -@@ -199,7 +198,6 @@ minstrel_ht_stats_csv_dump(struct minstr - - for (j = 0; j < MCS_GROUP_RATES; j++) { - struct minstrel_rate_stats *mrs = &mi->groups[i].rates[j]; -- static const int bitrates[4] = { 10, 20, 55, 110 }; - int idx = i * MCS_GROUP_RATES + j; - unsigned int duration; - -@@ -214,6 +212,8 @@ minstrel_ht_stats_csv_dump(struct minstr - p += sprintf(p, "VHT%c0,", htmode); - p += sprintf(p, "%cGI,", gimode); - p += sprintf(p, "%d,", mg->streams); -+ } else if (i == MINSTREL_OFDM_GROUP) { -+ p += sprintf(p, "OFDM,,1,"); - } else { - p += sprintf(p, "CCK,"); - p += sprintf(p, "%cP,", j < 4 ? 'L' : 'S'); -@@ -231,7 +231,13 @@ minstrel_ht_stats_csv_dump(struct minstr - } else if (gflags & IEEE80211_TX_RC_VHT_MCS) { - p += sprintf(p, ",MCS%-1u/%1u,", j, mg->streams); - } else { -- int r = bitrates[j % 4]; -+ int r; -+ -+ if (i == MINSTREL_OFDM_GROUP) -+ r = minstrel_ofdm_bitrates[j % 8]; -+ else -+ r = minstrel_cck_bitrates[j % 4]; -+ - p += sprintf(p, ",%2u.%1uM,", r / 10, r % 10); - } - -@@ -274,18 +280,9 @@ minstrel_ht_stats_csv_open(struct inode - struct minstrel_ht_sta *mi = &msp->ht; - struct minstrel_debugfs_info *ms; - unsigned int i; -- int ret; - char *p; - -- if (!msp->is_ht) { -- inode->i_private = &msp->legacy; -- ret = minstrel_stats_csv_open(inode, file); -- inode->i_private = msp; -- return ret; -- } -- - ms = kmalloc(32768, GFP_KERNEL); -- - if (!ms) - return -ENOMEM; - |