return rix;
}
-static void ath_rc_sort_validrates(const struct ath_rate_table *rate_table,
- struct ath_rate_priv *ath_rc_priv)
+static void ath_rc_sort_validrates(struct ath_rate_priv *ath_rc_priv)
{
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
u8 i, j, idx, idx_next;
for (i = ath_rc_priv->max_valid_rate - 1; i > 0; i--) {
}
}
-static void ath_rc_init_valid_rate_idx(struct ath_rate_priv *ath_rc_priv)
-{
- u8 i;
-
- for (i = 0; i < ath_rc_priv->rate_table_size; i++)
- ath_rc_priv->valid_rate_index[i] = 0;
-}
-
-static inline void ath_rc_set_valid_rate_idx(struct ath_rate_priv *ath_rc_priv,
- u8 index, int valid_tx_rate)
-{
- BUG_ON(index > ath_rc_priv->rate_table_size);
- ath_rc_priv->valid_rate_index[index] = !!valid_tx_rate;
-}
-
static inline
int ath_rc_get_nextvalid_txrate(const struct ath_rate_table *rate_table,
struct ath_rate_priv *ath_rc_priv,
}
static inline int
-ath_rc_get_lower_rix(const struct ath_rate_table *rate_table,
- struct ath_rate_priv *ath_rc_priv,
+ath_rc_get_lower_rix(struct ath_rate_priv *ath_rc_priv,
u8 cur_valid_txrate, u8 *next_idx)
{
int8_t i;
return 0;
}
-static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- u32 capflag)
+static u8 ath_rc_init_validrates(struct ath_rate_priv *ath_rc_priv)
{
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
u8 i, hi = 0;
for (i = 0; i < rate_table->rate_cnt; i++) {
u32 phy = rate_table->info[i].phy;
u8 valid_rate_count = 0;
- if (!ath_rc_valid_phyrate(phy, capflag, 0))
+ if (!ath_rc_valid_phyrate(phy, ath_rc_priv->ht_cap, 0))
continue;
valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy];
ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = i;
ath_rc_priv->valid_phy_ratecnt[phy] += 1;
- ath_rc_set_valid_rate_idx(ath_rc_priv, i, 1);
+ ath_rc_priv->valid_rate_index[i] = true;
hi = i;
}
}
return hi;
}
-static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- struct ath_rateset *rateset,
- u32 capflag)
+static inline bool ath_rc_check_legacy(u8 rate, u8 dot11rate, u16 rate_flags,
+ u32 phy, u32 capflag)
{
- u8 i, j, hi = 0;
+ if (rate != dot11rate || WLAN_RC_PHY_HT(phy))
+ return false;
- /* Use intersection of working rates and valid rates */
- for (i = 0; i < rateset->rs_nrates; i++) {
- for (j = 0; j < rate_table->rate_cnt; j++) {
- u32 phy = rate_table->info[j].phy;
- u16 rate_flags = rate_table->info[j].rate_flags;
- u8 rate = rateset->rs_rates[i];
- u8 dot11rate = rate_table->info[j].dot11rate;
-
- /* We allow a rate only if its valid and the
- * capflag matches one of the validity
- * (VALID/VALID_20/VALID_40) flags */
-
- if ((rate == dot11rate) &&
- (rate_flags & WLAN_RC_CAP_MODE(capflag)) ==
- WLAN_RC_CAP_MODE(capflag) &&
- (rate_flags & WLAN_RC_CAP_STREAM(capflag)) &&
- !WLAN_RC_PHY_HT(phy)) {
- u8 valid_rate_count = 0;
-
- if (!ath_rc_valid_phyrate(phy, capflag, 0))
- continue;
-
- valid_rate_count =
- ath_rc_priv->valid_phy_ratecnt[phy];
-
- ath_rc_priv->valid_phy_rateidx[phy]
- [valid_rate_count] = j;
- ath_rc_priv->valid_phy_ratecnt[phy] += 1;
- ath_rc_set_valid_rate_idx(ath_rc_priv, j, 1);
- hi = max(hi, j);
- }
- }
- }
+ if ((rate_flags & WLAN_RC_CAP_MODE(capflag)) != WLAN_RC_CAP_MODE(capflag))
+ return false;
- return hi;
+ if (!(rate_flags & WLAN_RC_CAP_STREAM(capflag)))
+ return false;
+
+ return true;
+}
+
+static inline bool ath_rc_check_ht(u8 rate, u8 dot11rate, u16 rate_flags,
+ u32 phy, u32 capflag)
+{
+ if (rate != dot11rate || !WLAN_RC_PHY_HT(phy))
+ return false;
+
+ if (!WLAN_RC_PHY_HT_VALID(rate_flags, capflag))
+ return false;
+
+ if (!(rate_flags & WLAN_RC_CAP_STREAM(capflag)))
+ return false;
+
+ return true;
}
-static u8 ath_rc_setvalid_htrates(struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- struct ath_rateset *rateset, u32 capflag)
+static u8 ath_rc_setvalid_rates(struct ath_rate_priv *ath_rc_priv, bool legacy)
{
- u8 i, j, hi = 0;
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
+ struct ath_rateset *rateset;
+ u32 phy, capflag = ath_rc_priv->ht_cap;
+ u16 rate_flags;
+ u8 i, j, hi = 0, rate, dot11rate, valid_rate_count;
+
+ if (legacy)
+ rateset = &ath_rc_priv->neg_rates;
+ else
+ rateset = &ath_rc_priv->neg_ht_rates;
- /* Use intersection of working rates and valid rates */
for (i = 0; i < rateset->rs_nrates; i++) {
for (j = 0; j < rate_table->rate_cnt; j++) {
- u32 phy = rate_table->info[j].phy;
- u16 rate_flags = rate_table->info[j].rate_flags;
- u8 rate = rateset->rs_rates[i];
- u8 dot11rate = rate_table->info[j].dot11rate;
-
- if ((rate != dot11rate) || !WLAN_RC_PHY_HT(phy) ||
- !(rate_flags & WLAN_RC_CAP_STREAM(capflag)) ||
- !WLAN_RC_PHY_HT_VALID(rate_flags, capflag))
+ phy = rate_table->info[j].phy;
+ rate_flags = rate_table->info[j].rate_flags;
+ rate = rateset->rs_rates[i];
+ dot11rate = rate_table->info[j].dot11rate;
+
+ if (legacy &&
+ !ath_rc_check_legacy(rate, dot11rate,
+ rate_flags, phy, capflag))
+ continue;
+
+ if (!legacy &&
+ !ath_rc_check_ht(rate, dot11rate,
+ rate_flags, phy, capflag))
continue;
if (!ath_rc_valid_phyrate(phy, capflag, 0))
continue;
- ath_rc_priv->valid_phy_rateidx[phy]
- [ath_rc_priv->valid_phy_ratecnt[phy]] = j;
+ valid_rate_count = ath_rc_priv->valid_phy_ratecnt[phy];
+ ath_rc_priv->valid_phy_rateidx[phy][valid_rate_count] = j;
ath_rc_priv->valid_phy_ratecnt[phy] += 1;
- ath_rc_set_valid_rate_idx(ath_rc_priv, j, 1);
+ ath_rc_priv->valid_rate_index[j] = true;
hi = max(hi, j);
}
}
return hi;
}
-/* Finds the highest rate index we can use */
-static u8 ath_rc_get_highest_rix(struct ath_softc *sc,
- struct ath_rate_priv *ath_rc_priv,
- const struct ath_rate_table *rate_table,
- int *is_probing,
- bool legacy)
+static u8 ath_rc_get_highest_rix(struct ath_rate_priv *ath_rc_priv,
+ int *is_probing)
{
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
u32 best_thruput, this_thruput, now_msec;
u8 rate, next_rate, best_rate, maxindex, minindex;
int8_t index = 0;
u8 per_thres;
rate = ath_rc_priv->valid_rate_index[index];
- if (legacy && !(rate_table->info[rate].rate_flags & RC_LEGACY))
- continue;
if (rate > ath_rc_priv->rate_max_phy)
continue;
rate->count = tries;
rate->idx = rate_table->info[rix].ratecode;
- if (txrc->short_preamble)
- rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
if (txrc->rts || rtsctsenable)
rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
const struct ath_rate_table *rate_table,
struct ieee80211_tx_info *tx_info)
{
- struct ieee80211_tx_rate *rates = tx_info->control.rates;
- int i = 0, rix = 0, cix, enable_g_protection = 0;
+ struct ieee80211_bss_conf *bss_conf;
- /* get the cix for the lowest valid rix */
- for (i = 3; i >= 0; i--) {
- if (rates[i].count && (rates[i].idx >= 0)) {
- rix = ath_rc_get_rateindex(rate_table, &rates[i]);
- break;
- }
- }
- cix = rate_table->info[rix].ctrl_rate;
+ if (!tx_info->control.vif)
+ return;
+ /*
+ * For legacy frames, mac80211 takes care of CTS protection.
+ */
+ if (!(tx_info->control.rates[0].flags & IEEE80211_TX_RC_MCS))
+ return;
- /* All protection frames are transmited at 2Mb/s for 802.11g,
- * otherwise we transmit them at 1Mb/s */
- if (sc->hw->conf.channel->band == IEEE80211_BAND_2GHZ &&
- !conf_is_ht(&sc->hw->conf))
- enable_g_protection = 1;
+ bss_conf = &tx_info->control.vif->bss_conf;
+
+ if (!bss_conf->basic_rates)
+ return;
/*
- * If 802.11g protection is enabled, determine whether to use RTS/CTS or
- * just CTS. Note that this is only done for OFDM/HT unicast frames.
+ * For now, use the lowest allowed basic rate for HT frames.
*/
- if ((tx_info->control.vif &&
- tx_info->control.vif->bss_conf.use_cts_prot) &&
- (rate_table->info[rix].phy == WLAN_RC_PHY_OFDM ||
- WLAN_RC_PHY_HT(rate_table->info[rix].phy))) {
- rates[0].flags |= IEEE80211_TX_RC_USE_CTS_PROTECT;
- cix = rate_table->info[enable_g_protection].ctrl_rate;
- }
-
- tx_info->control.rts_cts_rate_idx = cix;
+ tx_info->control.rts_cts_rate_idx = __ffs(bss_conf->basic_rates);
}
static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
try_per_rate = 4;
rate_table = ath_rc_priv->rate_table;
- rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
- &is_probe, false);
+ rix = ath_rc_get_highest_rix(ath_rc_priv, &is_probe);
- /*
- * If we're in HT mode and both us and our peer supports LDPC.
- * We don't need to check our own device's capabilities as our own
- * ht capabilities would have already been intersected with our peer's.
- */
if (conf_is_ht(&sc->hw->conf) &&
(sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING))
tx_info->flags |= IEEE80211_TX_CTL_LDPC;
tx_info->flags |= (1 << IEEE80211_TX_CTL_STBC_SHIFT);
if (is_probe) {
- /* set one try for probe rates. For the
- * probes don't enable rts */
+ /*
+ * Set one try for probe rates. For the
+ * probes don't enable RTS.
+ */
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
1, rix, 0);
-
- /* Get the next tried/allowed rate. No RTS for the next series
- * after the probe rate
+ /*
+ * Get the next tried/allowed rate.
+ * No RTS for the next series after the probe rate.
*/
- ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
+ ath_rc_get_lower_rix(ath_rc_priv, rix, &rix);
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, rix, 0);
tx_info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
} else {
- /* Set the chosen rate. No RTS for first series entry. */
+ /*
+ * Set the chosen rate. No RTS for first series entry.
+ */
ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, rix, 0);
}
- /* Fill in the other rates for multirate retry */
- for ( ; i < 3; i++) {
+ for ( ; i < 4; i++) {
+ /*
+ * Use twice the number of tries for the last MRR segment.
+ */
+ if (i + 1 == 4)
+ try_per_rate = 8;
+
+ ath_rc_get_lower_rix(ath_rc_priv, rix, &rix);
- ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
- /* All other rates in the series have RTS enabled */
+ /*
+ * All other rates in the series have RTS enabled.
+ */
ath_rc_rate_set_series(rate_table, &rates[i], txrc,
try_per_rate, rix, 1);
}
- /* Use twice the number of tries for the last MRR segment. */
- try_per_rate = 8;
-
- /*
- * If the last rate in the rate series is MCS and has
- * more than 80% of per thresh, then use a legacy rate
- * as last retry to ensure that the frame is tried in both
- * MCS and legacy rate.
- */
- ath_rc_get_lower_rix(rate_table, ath_rc_priv, rix, &rix);
- if (WLAN_RC_PHY_HT(rate_table->info[rix].phy) &&
- (ath_rc_priv->per[rix] > 45))
- rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table,
- &is_probe, true);
-
- /* All other rates in the series have RTS enabled */
- ath_rc_rate_set_series(rate_table, &rates[i], txrc,
- try_per_rate, rix, 1);
/*
* NB:Change rate series to enable aggregation when operating
* at lower MCS rates. When first rate in series is MCS2
rates[0].count = ATH_TXMAXTRY;
}
- /* Setup RTS/CTS */
ath_rc_rate_set_rtscts(sc, rate_table, tx_info);
}
stats->per = per;
}
-/* Update PER, RSSI and whatever else that the code thinks it is doing.
- If you can make sense of all this, you really need to go out more. */
-
static void ath_rc_update_ht(struct ath_softc *sc,
struct ath_rate_priv *ath_rc_priv,
struct ieee80211_tx_info *tx_info,
if (ath_rc_priv->per[tx_rate] >= 55 && tx_rate > 0 &&
rate_table->info[tx_rate].ratekbps <=
rate_table->info[ath_rc_priv->rate_max_phy].ratekbps) {
- ath_rc_get_lower_rix(rate_table, ath_rc_priv,
- (u8)tx_rate, &ath_rc_priv->rate_max_phy);
+ ath_rc_get_lower_rix(ath_rc_priv, (u8)tx_rate,
+ &ath_rc_priv->rate_max_phy);
/* Don't probe for a little while. */
ath_rc_priv->probe_time = now_msec;
}
+static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate)
+{
+ struct ath_rc_stats *stats;
+
+ stats = &rc->rcstats[final_rate];
+ stats->success++;
+}
static void ath_rc_tx_status(struct ath_softc *sc,
struct ath_rate_priv *ath_rc_priv,
- struct ieee80211_tx_info *tx_info,
- int final_ts_idx, int xretries, int long_retry)
+ struct sk_buff *skb)
{
- const struct ath_rate_table *rate_table;
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *rates = tx_info->status.rates;
+ struct ieee80211_tx_rate *rate;
+ int final_ts_idx = 0, xretries = 0, long_retry = 0;
u8 flags;
u32 i = 0, rix;
- rate_table = ath_rc_priv->rate_table;
+ for (i = 0; i < sc->hw->max_rates; i++) {
+ rate = &tx_info->status.rates[i];
+ if (rate->idx < 0 || !rate->count)
+ break;
+
+ final_ts_idx = i;
+ long_retry = rate->count - 1;
+ }
+
+ if (!(tx_info->flags & IEEE80211_TX_STAT_ACK))
+ xretries = 1;
/*
* If the first rate is not the final index, there
* are intermediate rate failures to be processed.
*/
if (final_ts_idx != 0) {
- /* Process intermediate rates that failed.*/
for (i = 0; i < final_ts_idx ; i++) {
if (rates[i].count != 0 && (rates[i].idx >= 0)) {
flags = rates[i].flags;
rix = ath_rc_get_rateindex(rate_table, &rates[i]);
ath_rc_update_ht(sc, ath_rc_priv, tx_info,
- rix, xretries ? 1 : 2,
- rates[i].count);
+ rix, xretries ? 1 : 2,
+ rates[i].count);
}
}
} else {
xretries = 2;
}
- flags = rates[i].flags;
+ flags = rates[final_ts_idx].flags;
/* If HT40 and we have switched mode from 40 to 20 => don't update */
if ((flags & IEEE80211_TX_RC_40_MHZ_WIDTH) &&
!(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG))
return;
- rix = ath_rc_get_rateindex(rate_table, &rates[i]);
+ rix = ath_rc_get_rateindex(rate_table, &rates[final_ts_idx]);
ath_rc_update_ht(sc, ath_rc_priv, tx_info, rix, xretries, long_retry);
+ ath_debug_stat_rc(ath_rc_priv, rix);
}
static const
enum ieee80211_band band,
bool is_ht)
{
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-
switch(band) {
case IEEE80211_BAND_2GHZ:
if (is_ht)
return &ar5416_11na_ratetable;
return &ar5416_11a_ratetable;
default:
- ath_dbg(common, CONFIG, "Invalid band\n");
return NULL;
}
}
static void ath_rc_init(struct ath_softc *sc,
- struct ath_rate_priv *ath_rc_priv,
- struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta,
- const struct ath_rate_table *rate_table)
+ struct ath_rate_priv *ath_rc_priv)
{
+ const struct ath_rate_table *rate_table = ath_rc_priv->rate_table;
struct ath_rateset *rateset = &ath_rc_priv->neg_rates;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_rateset *ht_mcs = &ath_rc_priv->neg_ht_rates;
u8 i, j, k, hi = 0, hthi = 0;
- /* Initial rate table size. Will change depending
- * on the working rate set */
ath_rc_priv->rate_table_size = RATE_TABLE_SIZE;
- /* Initialize thresholds according to the global rate table */
for (i = 0 ; i < ath_rc_priv->rate_table_size; i++) {
ath_rc_priv->per[i] = 0;
+ ath_rc_priv->valid_rate_index[i] = 0;
}
- /* Determine the valid rates */
- ath_rc_init_valid_rate_idx(ath_rc_priv);
-
for (i = 0; i < WLAN_RC_PHY_MAX; i++) {
for (j = 0; j < RATE_TABLE_SIZE; j++)
ath_rc_priv->valid_phy_rateidx[i][j] = 0;
}
if (!rateset->rs_nrates) {
- /* No working rate, just initialize valid rates */
- hi = ath_rc_init_validrates(ath_rc_priv, rate_table,
- ath_rc_priv->ht_cap);
+ hi = ath_rc_init_validrates(ath_rc_priv);
} else {
- /* Use intersection of working rates and valid rates */
- hi = ath_rc_setvalid_rates(ath_rc_priv, rate_table,
- rateset, ath_rc_priv->ht_cap);
- if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG) {
- hthi = ath_rc_setvalid_htrates(ath_rc_priv,
- rate_table,
- ht_mcs,
- ath_rc_priv->ht_cap);
- }
+ hi = ath_rc_setvalid_rates(ath_rc_priv, true);
+
+ if (ath_rc_priv->ht_cap & WLAN_RC_HT_FLAG)
+ hthi = ath_rc_setvalid_rates(ath_rc_priv, false);
+
hi = max(hi, hthi);
}
ath_rc_priv->rate_table_size = hi + 1;
ath_rc_priv->rate_max_phy = 0;
- BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
+ WARN_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
for (i = 0, k = 0; i < WLAN_RC_PHY_MAX; i++) {
for (j = 0; j < ath_rc_priv->valid_phy_ratecnt[i]; j++) {
ath_rc_priv->valid_phy_rateidx[i][j];
}
- if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1)
- || !ath_rc_priv->valid_phy_ratecnt[i])
+ if (!ath_rc_valid_phyrate(i, rate_table->initial_ratemax, 1) ||
+ !ath_rc_priv->valid_phy_ratecnt[i])
continue;
ath_rc_priv->rate_max_phy = ath_rc_priv->valid_phy_rateidx[i][j-1];
}
- BUG_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
- BUG_ON(k > RATE_TABLE_SIZE);
+ WARN_ON(ath_rc_priv->rate_table_size > RATE_TABLE_SIZE);
+ WARN_ON(k > RATE_TABLE_SIZE);
ath_rc_priv->max_valid_rate = k;
- ath_rc_sort_validrates(rate_table, ath_rc_priv);
+ ath_rc_sort_validrates(ath_rc_priv);
ath_rc_priv->rate_max_phy = (k > 4) ?
- ath_rc_priv->valid_rate_index[k-4] :
- ath_rc_priv->valid_rate_index[k-1];
- ath_rc_priv->rate_table = rate_table;
+ ath_rc_priv->valid_rate_index[k-4] :
+ ath_rc_priv->valid_rate_index[k-1];
ath_dbg(common, CONFIG, "RC Initialized with capabilities: 0x%x\n",
ath_rc_priv->ht_cap);
}
-static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta,
- bool is_cw40, bool is_sgi)
+static u8 ath_rc_build_ht_caps(struct ath_softc *sc, struct ieee80211_sta *sta)
{
u8 caps = 0;
caps |= WLAN_RC_TS_FLAG | WLAN_RC_DS_FLAG;
else if (sta->ht_cap.mcs.rx_mask[1])
caps |= WLAN_RC_DS_FLAG;
- if (is_cw40)
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
caps |= WLAN_RC_40_FLAG;
- if (is_sgi)
+ if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40 ||
+ sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20)
caps |= WLAN_RC_SGI_FLAG;
}
/* mac80211 Rate Control callbacks */
/***********************************/
-static void ath_debug_stat_rc(struct ath_rate_priv *rc, int final_rate)
-{
- struct ath_rc_stats *stats;
-
- stats = &rc->rcstats[final_rate];
- stats->success++;
-}
-
-
static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
struct ath_softc *sc = priv;
struct ath_rate_priv *ath_rc_priv = priv_sta;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr;
- int final_ts_idx = 0, tx_status = 0;
- int long_retry = 0;
- __le16 fc;
- int i;
-
- hdr = (struct ieee80211_hdr *)skb->data;
- fc = hdr->frame_control;
- for (i = 0; i < sc->hw->max_rates; i++) {
- struct ieee80211_tx_rate *rate = &tx_info->status.rates[i];
- if (rate->idx < 0 || !rate->count)
- break;
-
- final_ts_idx = i;
- long_retry = rate->count - 1;
- }
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ __le16 fc = hdr->frame_control;
if (!priv_sta || !ieee80211_is_data(fc))
return;
if (tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED)
return;
- if (!(tx_info->flags & IEEE80211_TX_STAT_ACK))
- tx_status = 1;
-
- ath_rc_tx_status(sc, ath_rc_priv, tx_info, final_ts_idx, tx_status,
- long_retry);
+ ath_rc_tx_status(sc, ath_rc_priv, skb);
/* Check if aggregation has to be enabled for this tid */
if (conf_is_ht(&sc->hw->conf) &&
ieee80211_start_tx_ba_session(sta, tid, 0);
}
}
-
- ath_debug_stat_rc(ath_rc_priv,
- ath_rc_get_rateindex(ath_rc_priv->rate_table,
- &tx_info->status.rates[final_ts_idx]));
}
static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
struct ieee80211_sta *sta, void *priv_sta)
{
struct ath_softc *sc = priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_rate_priv *ath_rc_priv = priv_sta;
- const struct ath_rate_table *rate_table;
- bool is_cw40, is_sgi = false;
int i, j = 0;
for (i = 0; i < sband->n_bitrates; i++) {
ath_rc_priv->neg_ht_rates.rs_nrates = j;
}
- is_cw40 = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
-
- if (is_cw40)
- is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40);
- else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
- is_sgi = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20);
-
- /* Choose rate table first */
-
- rate_table = ath_choose_rate_table(sc, sband->band,
- sta->ht_cap.ht_supported);
+ ath_rc_priv->rate_table = ath_choose_rate_table(sc, sband->band,
+ sta->ht_cap.ht_supported);
+ if (!ath_rc_priv->rate_table) {
+ ath_err(common, "No rate table chosen\n");
+ return;
+ }
- ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta, is_cw40, is_sgi);
- ath_rc_init(sc, priv_sta, sband, sta, rate_table);
+ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta);
+ ath_rc_init(sc, priv_sta);
}
static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
{
struct ath_softc *sc = priv;
struct ath_rate_priv *ath_rc_priv = priv_sta;
- const struct ath_rate_table *rate_table = NULL;
- bool oper_cw40 = false, oper_sgi;
- bool local_cw40 = !!(ath_rc_priv->ht_cap & WLAN_RC_40_FLAG);
- bool local_sgi = !!(ath_rc_priv->ht_cap & WLAN_RC_SGI_FLAG);
-
- /* FIXME: Handle AP mode later when we support CWM */
if (changed & IEEE80211_RC_BW_CHANGED) {
- if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION)
- return;
+ ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta);
+ ath_rc_init(sc, priv_sta);
- if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
- oper_cw40 = true;
-
- if (oper_cw40)
- oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) ?
- true : false;
- else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_SGI_20)
- oper_sgi = (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ?
- true : false;
- else
- oper_sgi = false;
-
- if ((local_cw40 != oper_cw40) || (local_sgi != oper_sgi)) {
- rate_table = ath_choose_rate_table(sc, sband->band,
- sta->ht_cap.ht_supported);
- ath_rc_priv->ht_cap = ath_rc_build_ht_caps(sc, sta,
- oper_cw40, oper_sgi);
- ath_rc_init(sc, priv_sta, sband, sta, rate_table);
-
- ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG,
- "Operating HT Bandwidth changed to: %d\n",
- sc->hw->conf.channel_type);
- }
+ ath_dbg(ath9k_hw_common(sc->sc_ah), CONFIG,
+ "Operating HT Bandwidth changed to: %d\n",
+ sc->hw->conf.channel_type);
}
}
projects / mirror_ubuntu-artful-kernel.git / blobdiff