* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#include "core.h"
+#include "ath9k.h"
static struct ath_rate_table ar5416_11na_ratetable = {
42,
return rate;
}
-static void ath_rc_rate_set_series(struct ath_rate_table *rate_table ,
+static void ath_rc_rate_set_series(struct ath_rate_table *rate_table,
struct ieee80211_tx_rate *rate,
+ struct ieee80211_tx_rate_control *txrc,
u8 tries, u8 rix, int rtsctsenable)
{
rate->count = tries;
rate->idx = rix;
- if (rtsctsenable)
+ if (txrc->short_preamble)
+ rate->flags |= IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
+ if (txrc->rts || rtsctsenable)
rate->flags |= IEEE80211_TX_RC_USE_RTS_CTS;
if (WLAN_RC_PHY_40(rate_table->info[rix].phy))
rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
rate->flags |= IEEE80211_TX_RC_MCS;
}
+static void ath_rc_rate_set_rtscts(struct ath_softc *sc,
+ 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;
+
+ /* get the cix for the lowest valid rix */
+ for (i = 3; i >= 0; i--) {
+ if (rates[i].count && (rates[i].idx >= 0)) {
+ rix = rates[i].idx;
+ break;
+ }
+ }
+ cix = rate_table->info[rix].ctrl_rate;
+
+ /* 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;
+
+ /*
+ * 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.
+ */
+ if ((sc->sc_flags & SC_OP_PROTECT_ENABLE) &&
+ !(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+ (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;
+}
+
static u8 ath_rc_rate_getidx(struct ath_softc *sc,
struct ath_rate_priv *ath_rc_priv,
struct ath_rate_table *rate_table,
struct sk_buff *skb = txrc->skb;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_rate *rates = tx_info->control.rates;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ __le16 fc = hdr->frame_control;
u8 try_per_rate = 0, i = 0, rix, nrix;
int is_probe = 0;
if (is_probe) {
/* set one try for probe rates. For the
* probes don't enable rts */
- ath_rc_rate_set_series(rate_table, &rates[i++],
+ ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
1, nrix, 0);
try_per_rate = (ATH_11N_TXMAXTRY/4);
*/
nrix = ath_rc_rate_getidx(sc, ath_rc_priv,
rate_table, nrix, 1, 0);
- ath_rc_rate_set_series(rate_table, &rates[i++],
+ ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, nrix, 0);
} else {
try_per_rate = (ATH_11N_TXMAXTRY/4);
/* Set the choosen rate. No RTS for first series entry. */
- ath_rc_rate_set_series(rate_table, &rates[i++],
+ ath_rc_rate_set_series(rate_table, &rates[i++], txrc,
try_per_rate, nrix, 0);
}
nrix = ath_rc_rate_getidx(sc, ath_rc_priv,
rate_table, nrix, 1, min_rate);
/* All other rates in the series have RTS enabled */
- ath_rc_rate_set_series(rate_table, &rates[i],
+ ath_rc_rate_set_series(rate_table, &rates[i], txrc,
try_num, nrix, 1);
}
rates[3].flags = rates[2].flags;
}
}
+
+ /*
+ * Force hardware to use computed duration for next
+ * fragment by disabling multi-rate retry, which
+ * updates duration based on the multi-rate duration table.
+ *
+ * FIXME: Fix duration
+ */
+ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+ (ieee80211_has_morefrags(fc) ||
+ (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG))) {
+ rates[1].count = rates[2].count = rates[3].count = 0;
+ rates[1].idx = rates[2].idx = rates[3].idx = 0;
+ rates[0].count = ATH_TXMAXTRY;
+ }
+
+ /* Setup RTS/CTS */
+ ath_rc_rate_set_rtscts(sc, rate_table, tx_info);
}
static bool ath_rc_update_per(struct ath_softc *sc,
ath_rc_priv->per_down_time = now_msec;
}
+ ath_debug_stat_retries(sc, tx_rate, xretries, retries);
+
#undef CHK_RSSI
}
struct ath_rateset *rateset = &ath_rc_priv->neg_rates;
u8 *ht_mcs = (u8 *)&ath_rc_priv->neg_ht_rates;
u8 i, j, k, hi = 0, hthi = 0;
+ struct ath_hw *ah = sc->sc_ah;
/* FIXME: Adhoc */
- if ((sc->sc_ah->ah_opmode == NL80211_IFTYPE_STATION) ||
- (sc->sc_ah->ah_opmode == NL80211_IFTYPE_ADHOC)) {
+ if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) ||
+ (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)) {
bool is_cw_40 = sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40;
rate_table = ath_choose_rate_table(sc, sband->band,
sta->ht_cap.ht_supported,
is_cw_40);
- } else if (sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) {
+ } else if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
/* cur_rate_table would be set on init through config() */
rate_table = sc->cur_rate_table;
}
if (sta->ht_cap.ht_supported) {
ath_rc_priv->ht_cap = WLAN_RC_HT_FLAG;
- if (sc->sc_ah->ah_caps.tx_chainmask != 1)
+ if (sc->sc_ah->caps.tx_chainmask != 1 &&
+ ath9k_hw_getcapability(ah, ATH9K_CAP_DS, 0, NULL))
ath_rc_priv->ht_cap |= WLAN_RC_DS_FLAG;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
ath_rc_priv->ht_cap |= WLAN_RC_40_FLAG;
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);
+ ath_rc_priv->ht_cap);
} 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);
+ 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);
+ rate_table,
+ ht_mcs,
+ ath_rc_priv->ht_cap);
}
hi = A_MAX(hi, hthi);
}
*/
if (tx_info_priv->tx.ts_flags &
(ATH9K_TX_DATA_UNDERRUN | ATH9K_TX_DELIM_UNDERRUN) &&
- ((sc->sc_ah->ah_txTrigLevel) >= ath_rc_priv->tx_triglevel_max)) {
+ ((sc->sc_ah->tx_trig_level) >= ath_rc_priv->tx_triglevel_max)) {
tx_status = 1;
is_underrun = 1;
}
tx_info_priv->tx.ts_longretry);
/* Check if aggregation has to be enabled for this tid */
- if (conf_is_ht(&sc->hw->conf)) {
+ if (conf_is_ht(&sc->hw->conf) &&
+ !(skb->protocol == cpu_to_be16(ETH_P_PAE))) {
if (ieee80211_is_data_qos(fc)) {
u8 *qc, tid;
struct ath_node *an;
ieee80211_start_tx_ba_session(sc->hw, hdr->addr1, tid);
}
}
+
+ ath_debug_stat_rc(sc, skb);
exit:
kfree(tx_info_priv);
}
}
rate_priv->rssi_down_time = jiffies_to_msecs(jiffies);
- rate_priv->tx_triglevel_max = sc->sc_ah->ah_caps.tx_triglevel_max;
+ rate_priv->tx_triglevel_max = sc->sc_ah->caps.tx_triglevel_max;
return rate_priv;
}
projects / linux-2.6-omap-h63xx.git / blobdiff