case IEEE80211_AMPDU_TX_START:
ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid);
if (!ret)
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
ath9k_ps_wakeup(sc);
ret = ath_tx_aggr_start(sc, sta, tid, ssn);
if (!ret)
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
ath9k_ps_restore(sc);
break;
case IEEE80211_AMPDU_TX_STOP_FLUSH:
rcu_assign_pointer(sta_info->agg[tid], tid_info);
spin_unlock_bh(&ar->tx_ampdu_list_lock);
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
enum ieee80211_ampdu_mlme_action action = params->action;
u16 tid = params->tid;
u16 *ssn = ¶ms->ssn;
+ int ret = 0;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
action, tid);
sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
spin_unlock_bh(&sta_priv->ampdu_lock);
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
spin_lock_bh(&sta_priv->ampdu_lock);
mutex_unlock(&wcn->conf_mutex);
- return 0;
+ return ret;
}
static const struct ieee80211_ops wcn36xx_ops = {
"START: tid %d is not agg\'able\n", tid);
return -EINVAL;
}
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
if (tid_data->tfds_in_queue == 0) {
D_HT("HW queue is empty\n");
tid_data->agg.state = IL_AGG_ON;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
} else {
D_HT("HW queue is NOT empty: %d packets in HW queue\n",
tid_data->tfds_in_queue);
IWL_DEBUG_TX_QUEUES(priv, "Can proceed: ssn = next_recl = %d\n",
tid_data->agg.ssn);
tid_data->agg.state = IWL_AGG_STARTING;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
} else {
IWL_DEBUG_TX_QUEUES(priv, "Can't proceed: ssn %d, "
"next_reclaimed = %d\n",
if (normalized_ssn == tid_data->next_reclaimed) {
tid_data->state = IWL_AGG_STARTING;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
} else {
tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA;
+ ret = 0;
}
- ret = 0;
-
out:
spin_unlock_bh(&mvmsta->lock);
};
static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
- .n_reg_rules = 4,
+ .n_reg_rules = 5,
.alpha2 = "99",
.reg_rules = {
REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
+ REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
}
};
static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
- .n_reg_rules = 2,
+ .n_reg_rules = 3,
.alpha2 = "99",
.reg_rules = {
REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
REG_RULE(5725-10, 5850+10, 40, 0, 30,
NL80211_RRF_NO_IR),
+ REG_RULE(5855-10, 5925+10, 40, 0, 33, 0),
}
};
CHAN5G(5805), /* Channel 161 */
CHAN5G(5825), /* Channel 165 */
CHAN5G(5845), /* Channel 169 */
+
+ CHAN5G(5855), /* Channel 171 */
+ CHAN5G(5860), /* Channel 172 */
+ CHAN5G(5865), /* Channel 173 */
+ CHAN5G(5870), /* Channel 174 */
+
+ CHAN5G(5875), /* Channel 175 */
+ CHAN5G(5880), /* Channel 176 */
+ CHAN5G(5885), /* Channel 177 */
+ CHAN5G(5890), /* Channel 178 */
+ CHAN5G(5895), /* Channel 179 */
+ CHAN5G(5900), /* Channel 180 */
+ CHAN5G(5905), /* Channel 181 */
+
+ CHAN5G(5910), /* Channel 182 */
+ CHAN5G(5915), /* Channel 183 */
+ CHAN5G(5920), /* Channel 184 */
+ CHAN5G(5925), /* Channel 185 */
};
static const struct ieee80211_rate hwsim_rates[] = {
if (vif->type != NL80211_IFTYPE_AP &&
vif->type != NL80211_IFTYPE_MESH_POINT &&
- vif->type != NL80211_IFTYPE_ADHOC)
+ vif->type != NL80211_IFTYPE_ADHOC &&
+ vif->type != NL80211_IFTYPE_OCB)
return;
skb = ieee80211_beacon_get(hw, vif);
}
static const char * const hwsim_chanwidths[] = {
+ [NL80211_CHAN_WIDTH_5] = "ht5",
+ [NL80211_CHAN_WIDTH_10] = "ht10",
[NL80211_CHAN_WIDTH_20_NOHT] = "noht",
[NL80211_CHAN_WIDTH_20] = "ht20",
[NL80211_CHAN_WIDTH_40] = "ht40",
switch (action) {
case IEEE80211_AMPDU_TX_START:
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
BIT(NL80211_IFTYPE_P2P_CLIENT) | \
BIT(NL80211_IFTYPE_P2P_GO) | \
BIT(NL80211_IFTYPE_ADHOC) | \
- BIT(NL80211_IFTYPE_MESH_POINT))
+ BIT(NL80211_IFTYPE_MESH_POINT) | \
+ BIT(NL80211_IFTYPE_OCB))
static int mac80211_hwsim_new_radio(struct genl_info *info,
struct hwsim_new_radio_params *param)
} else {
data->if_combination.num_different_channels = 1;
data->if_combination.radar_detect_widths =
+ BIT(NL80211_CHAN_WIDTH_5) |
+ BIT(NL80211_CHAN_WIDTH_10) |
BIT(NL80211_CHAN_WIDTH_20_NOHT) |
BIT(NL80211_CHAN_WIDTH_20) |
BIT(NL80211_CHAN_WIDTH_40) |
rc = -EBUSY;
break;
}
- ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
+ rc = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
break;
case IEEE80211_AMPDU_TX_START:
mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
mt7603_mac_tx_ba_reset(dev, msta->wcid.idx, tid, -1);
break;
case IEEE80211_AMPDU_TX_START:
mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
mt7615_mcu_set_tx_ba(dev, params, 0);
break;
case IEEE80211_AMPDU_TX_START:
mtxq->agg_ssn = IEEE80211_SN_TO_SEQ(ssn);
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
case IEEE80211_AMPDU_TX_START:
msta->agg_ssn[tid] = ssn << 4;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
* when the hw reorders frames due to aggregation.
*/
if (sta_priv->wcid > WCID_END)
- return 1;
+ return -ENOSPC;
switch (action) {
case IEEE80211_AMPDU_RX_START:
*/
break;
case IEEE80211_AMPDU_TX_START:
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
tid_data->agg.agg_state = RTL_AGG_START;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- return 0;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
}
int rtl_tx_agg_stop(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
switch (params->action) {
case IEEE80211_AMPDU_TX_START:
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- break;
+ return IEEE80211_AMPDU_TX_START_IMMEDIATE;
case IEEE80211_AMPDU_TX_STOP_CONT:
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
else if ((vif->type == NL80211_IFTYPE_AP) ||
(vif->type == NL80211_IFTYPE_P2P_GO))
rsta->seq_start[tid] = seq_no;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- status = 0;
+ status = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
*
* @IEEE80211_AMPDU_RX_START: start RX aggregation
* @IEEE80211_AMPDU_RX_STOP: stop RX aggregation
- * @IEEE80211_AMPDU_TX_START: start TX aggregation
+ * @IEEE80211_AMPDU_TX_START: start TX aggregation, the driver must either
+ * call ieee80211_start_tx_ba_cb_irqsafe() or return the special
+ * status %IEEE80211_AMPDU_TX_START_IMMEDIATE.
* @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational
* @IEEE80211_AMPDU_TX_STOP_CONT: stop TX aggregation but continue transmitting
* queued packets, now unaggregated. After all packets are transmitted the
IEEE80211_AMPDU_TX_OPERATIONAL,
};
+#define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
+
/**
* struct ieee80211_ampdu_params - AMPDU action parameters
*
*
* Even ``189`` would be wrong since 1 could be lost again.
*
- * Returns a negative error code on failure.
+ * Returns a negative error code on failure. The driver may return
+ * %IEEE80211_AMPDU_TX_START_IMMEDIATE for %IEEE80211_AMPDU_TX_START
+ * if the session can start immediately.
+ *
* The callback can sleep.
*/
int (*ampdu_action)(struct ieee80211_hw *hw,
* set of BSSID,frequency parameters is used (i.e., either the enforcing
* %NL80211_ATTR_MAC,%NL80211_ATTR_WIPHY_FREQ or the less strict
* %NL80211_ATTR_MAC_HINT and %NL80211_ATTR_WIPHY_FREQ_HINT).
+ * Driver shall not modify the IEs specified through %NL80211_ATTR_IE if
+ * %NL80211_ATTR_MAC is included. However, if %NL80211_ATTR_MAC_HINT is
+ * included, these IEs through %NL80211_ATTR_IE are specified by the user
+ * space based on the best possible BSS selected. Thus, if the driver ends
+ * up selecting a different BSS, it can modify these IEs accordingly (e.g.
+ * userspace asks the driver to perform PMKSA caching with BSS1 and the
+ * driver ends up selecting BSS2 with different PMKSA cache entry; RSNIE
+ * has to get updated with the apt PMKID).
* %NL80211_ATTR_PREV_BSSID can be used to request a reassociation within
* the ESS in case the device is already associated and an association with
* a different BSS is desired.
params.ssn = sta->tid_seq[tid] >> 4;
ret = drv_ampdu_action(local, sdata, ¶ms);
- if (ret) {
+ if (ret == IEEE80211_AMPDU_TX_START_IMMEDIATE) {
+ /*
+ * We didn't send the request yet, so don't need to check
+ * here if we already got a response, just mark as driver
+ * ready immediately.
+ */
+ set_bit(HT_AGG_STATE_DRV_READY, &tid_tx->state);
+ } else if (ret) {
ht_dbg(sdata,
"BA request denied - HW unavailable for %pM tid %d\n",
sta->sta.addr, tid);
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct cfg80211_bss *cbss;
- int err, changed = 0;
sdata_assert_lock(sdata);
ifibss->chandef = sdata->csa_chandef;
/* generate the beacon */
- err = ieee80211_ibss_csa_beacon(sdata, NULL);
- if (err < 0)
- return err;
-
- changed |= err;
-
- return changed;
+ return ieee80211_ibss_csa_beacon(sdata, NULL);
}
void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata)
}
/* return current EMWA throughput */
-int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_ewma)
+int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_avg)
{
int usecs;
usecs = 1000000;
/* reset thr. below 10% success */
- if (mr->stats.prob_ewma < MINSTREL_FRAC(10, 100))
+ if (mr->stats.prob_avg < MINSTREL_FRAC(10, 100))
return 0;
- if (prob_ewma > MINSTREL_FRAC(90, 100))
+ if (prob_avg > MINSTREL_FRAC(90, 100))
return MINSTREL_TRUNC(100000 * (MINSTREL_FRAC(90, 100) / usecs));
else
- return MINSTREL_TRUNC(100000 * (prob_ewma / usecs));
+ return MINSTREL_TRUNC(100000 * (prob_avg / usecs));
}
/* find & sort topmost throughput rates */
for (j = MAX_THR_RATES; j > 0; --j) {
tmp_mrs = &mi->r[tp_list[j - 1]].stats;
- if (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) <=
- minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))
+ if (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_avg) <=
+ minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_avg))
break;
}
* Recalculate statistics and counters of a given rate
*/
void
-minstrel_calc_rate_stats(struct minstrel_rate_stats *mrs)
+minstrel_calc_rate_stats(struct minstrel_priv *mp,
+ struct minstrel_rate_stats *mrs)
{
unsigned int cur_prob;
if (unlikely(mrs->attempts > 0)) {
mrs->sample_skipped = 0;
cur_prob = MINSTREL_FRAC(mrs->success, mrs->attempts);
- if (unlikely(!mrs->att_hist)) {
- mrs->prob_ewma = cur_prob;
+ if (mp->new_avg) {
+ minstrel_filter_avg_add(&mrs->prob_avg,
+ &mrs->prob_avg_1, cur_prob);
+ } else if (unlikely(!mrs->att_hist)) {
+ mrs->prob_avg = cur_prob;
} else {
/*update exponential weighted moving avarage */
- mrs->prob_ewma = minstrel_ewma(mrs->prob_ewma,
- cur_prob,
- EWMA_LEVEL);
+ mrs->prob_avg = minstrel_ewma(mrs->prob_avg,
+ cur_prob,
+ EWMA_LEVEL);
}
mrs->att_hist += mrs->attempts;
mrs->succ_hist += mrs->success;
struct minstrel_rate_stats *tmp_mrs = &mi->r[tmp_prob_rate].stats;
/* Update statistics of success probability per rate */
- minstrel_calc_rate_stats(mrs);
+ minstrel_calc_rate_stats(mp, mrs);
/* Sample less often below the 10% chance of success.
* Sample less often above the 95% chance of success. */
- if (mrs->prob_ewma > MINSTREL_FRAC(95, 100) ||
- mrs->prob_ewma < MINSTREL_FRAC(10, 100)) {
+ if (mrs->prob_avg > MINSTREL_FRAC(95, 100) ||
+ mrs->prob_avg < MINSTREL_FRAC(10, 100)) {
mr->adjusted_retry_count = mrs->retry_count >> 1;
if (mr->adjusted_retry_count > 2)
mr->adjusted_retry_count = 2;
* choose the maximum throughput rate as max_prob_rate
* (2) if all success probabilities < 95%, the rate with
* highest success probability is chosen as max_prob_rate */
- if (mrs->prob_ewma >= MINSTREL_FRAC(95, 100)) {
- tmp_cur_tp = minstrel_get_tp_avg(mr, mrs->prob_ewma);
+ if (mrs->prob_avg >= MINSTREL_FRAC(95, 100)) {
+ tmp_cur_tp = minstrel_get_tp_avg(mr, mrs->prob_avg);
tmp_prob_tp = minstrel_get_tp_avg(&mi->r[tmp_prob_rate],
- tmp_mrs->prob_ewma);
+ tmp_mrs->prob_avg);
if (tmp_cur_tp >= tmp_prob_tp)
tmp_prob_rate = i;
} else {
- if (mrs->prob_ewma >= tmp_mrs->prob_ewma)
+ if (mrs->prob_avg >= tmp_mrs->prob_avg)
tmp_prob_rate = i;
}
}
mi->sample_deferred--;
if (time_after(jiffies, mi->last_stats_update +
- (mp->update_interval * HZ) / 1000))
+ mp->update_interval / (mp->new_avg ? 2 : 1)))
minstrel_update_stats(mp, mi);
}
* has a probability of >95%, we shouldn't be attempting
* to use it, as this only wastes precious airtime */
if (!mrr_capable &&
- (mi->r[ndx].stats.prob_ewma > MINSTREL_FRAC(95, 100)))
+ (mi->r[ndx].stats.prob_avg > MINSTREL_FRAC(95, 100)))
return;
mi->prev_sample = true;
* computing cur_tp
*/
tmp_mrs = &mi->r[idx].stats;
- tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_ewma) * 10;
+ tmp_cur_tp = minstrel_get_tp_avg(&mi->r[idx], tmp_mrs->prob_avg) * 10;
tmp_cur_tp = tmp_cur_tp * 1200 * 8 / 1024;
return tmp_cur_tp;
/* number of highest throughput rates to consider*/
#define MAX_THR_RATES 4
+/*
+ * Coefficients for moving average with noise filter (period=16),
+ * scaled by 10 bits
+ *
+ * a1 = exp(-pi * sqrt(2) / period)
+ * coeff2 = 2 * a1 * cos(sqrt(2) * 2 * pi / period)
+ * coeff3 = -sqr(a1)
+ * coeff1 = 1 - coeff2 - coeff3
+ */
+#define MINSTREL_AVG_COEFF1 (MINSTREL_FRAC(1, 1) - \
+ MINSTREL_AVG_COEFF2 - \
+ MINSTREL_AVG_COEFF3)
+#define MINSTREL_AVG_COEFF2 0x00001499
+#define MINSTREL_AVG_COEFF3 -0x0000092e
+
/*
* Perform EWMA (Exponentially Weighted Moving Average) calculation
*/
return old + incr;
}
+static inline int minstrel_filter_avg_add(u16 *prev_1, u16 *prev_2, s32 in)
+{
+ s32 out_1 = *prev_1;
+ s32 out_2 = *prev_2;
+ s32 val;
+
+ if (!in)
+ in += 1;
+
+ if (!out_1) {
+ val = out_1 = in;
+ goto out;
+ }
+
+ val = MINSTREL_AVG_COEFF1 * in;
+ val += MINSTREL_AVG_COEFF2 * out_1;
+ val += MINSTREL_AVG_COEFF3 * out_2;
+ val >>= MINSTREL_SCALE;
+
+ if (val > 1 << MINSTREL_SCALE)
+ val = 1 << MINSTREL_SCALE;
+ if (val < 0)
+ val = 1;
+
+out:
+ *prev_2 = out_1;
+ *prev_1 = val;
+
+ return val;
+}
+
struct minstrel_rate_stats {
/* current / last sampling period attempts/success counters */
u16 attempts, last_attempts;
/* total attempts/success counters */
u32 att_hist, succ_hist;
- /* prob_ewma - exponential weighted moving average of prob */
- u16 prob_ewma;
+ /* prob_avg - moving average of prob */
+ u16 prob_avg;
+ u16 prob_avg_1;
/* maximum retry counts */
u8 retry_count;
struct minstrel_priv {
struct ieee80211_hw *hw;
bool has_mrr;
+ bool new_avg;
u32 sample_switch;
unsigned int cw_min;
unsigned int cw_max;
void minstrel_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
/* Recalculate success probabilities and counters for a given rate using EWMA */
-void minstrel_calc_rate_stats(struct minstrel_rate_stats *mrs);
-int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_ewma);
+void minstrel_calc_rate_stats(struct minstrel_priv *mp,
+ struct minstrel_rate_stats *mrs);
+int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_avg);
/* debugfs */
int minstrel_stats_open(struct inode *inode, struct file *file);
p += sprintf(p, "%6u ", mr->perfect_tx_time);
tp_max = minstrel_get_tp_avg(mr, MINSTREL_FRAC(100,100));
- tp_avg = minstrel_get_tp_avg(mr, mrs->prob_ewma);
- eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
+ tp_avg = minstrel_get_tp_avg(mr, mrs->prob_avg);
+ eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000);
p += sprintf(p, "%4u.%1u %4u.%1u %3u.%1u"
" %3u %3u %-3u "
p += sprintf(p, "%u,",mr->perfect_tx_time);
tp_max = minstrel_get_tp_avg(mr, MINSTREL_FRAC(100,100));
- tp_avg = minstrel_get_tp_avg(mr, mrs->prob_ewma);
- eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
+ tp_avg = minstrel_get_tp_avg(mr, mrs->prob_avg);
+ eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000);
p += sprintf(p, "%u.%u,%u.%u,%u.%u,%u,%u,%u,"
"%llu,%llu,%d,%d\n",
*/
int
minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,
- int prob_ewma)
+ int prob_avg)
{
unsigned int nsecs = 0;
/* do not account throughput if sucess prob is below 10% */
- if (prob_ewma < MINSTREL_FRAC(10, 100))
+ if (prob_avg < MINSTREL_FRAC(10, 100))
return 0;
if (group != MINSTREL_CCK_GROUP)
* account for collision related packet error rate fluctuation
* (prob is scaled - see MINSTREL_FRAC above)
*/
- if (prob_ewma > MINSTREL_FRAC(90, 100))
+ if (prob_avg > MINSTREL_FRAC(90, 100))
return MINSTREL_TRUNC(100000 * ((MINSTREL_FRAC(90, 100) * 1000)
/ nsecs));
else
- return MINSTREL_TRUNC(100000 * ((prob_ewma * 1000) / nsecs));
+ return MINSTREL_TRUNC(100000 * ((prob_avg * 1000) / nsecs));
}
/*
cur_group = index / MCS_GROUP_RATES;
cur_idx = index % MCS_GROUP_RATES;
- cur_prob = mi->groups[cur_group].rates[cur_idx].prob_ewma;
+ cur_prob = mi->groups[cur_group].rates[cur_idx].prob_avg;
cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx, cur_prob);
do {
tmp_group = tp_list[j - 1] / MCS_GROUP_RATES;
tmp_idx = tp_list[j - 1] % MCS_GROUP_RATES;
- tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;
+ tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_avg;
tmp_tp_avg = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx,
tmp_prob);
if (cur_tp_avg < tmp_tp_avg ||
tmp_group = mi->max_prob_rate / MCS_GROUP_RATES;
tmp_idx = mi->max_prob_rate % MCS_GROUP_RATES;
- tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;
+ tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_avg;
tmp_tp_avg = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob);
/* if max_tp_rate[0] is from MCS_GROUP max_prob_rate get selected from
max_gpr_group = mg->max_group_prob_rate / MCS_GROUP_RATES;
max_gpr_idx = mg->max_group_prob_rate % MCS_GROUP_RATES;
- max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_ewma;
+ max_gpr_prob = mi->groups[max_gpr_group].rates[max_gpr_idx].prob_avg;
- if (mrs->prob_ewma > MINSTREL_FRAC(75, 100)) {
+ if (mrs->prob_avg > MINSTREL_FRAC(75, 100)) {
cur_tp_avg = minstrel_ht_get_tp_avg(mi, cur_group, cur_idx,
- mrs->prob_ewma);
+ mrs->prob_avg);
if (cur_tp_avg > tmp_tp_avg)
mi->max_prob_rate = index;
if (cur_tp_avg > max_gpr_tp_avg)
mg->max_group_prob_rate = index;
} else {
- if (mrs->prob_ewma > tmp_prob)
+ if (mrs->prob_avg > tmp_prob)
mi->max_prob_rate = index;
- if (mrs->prob_ewma > max_gpr_prob)
+ if (mrs->prob_avg > max_gpr_prob)
mg->max_group_prob_rate = index;
}
}
tmp_group = tmp_cck_tp_rate[0] / MCS_GROUP_RATES;
tmp_idx = tmp_cck_tp_rate[0] % MCS_GROUP_RATES;
- tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;
+ 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);
tmp_group = tmp_mcs_tp_rate[0] / MCS_GROUP_RATES;
tmp_idx = tmp_mcs_tp_rate[0] % MCS_GROUP_RATES;
- tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_ewma;
+ tmp_prob = mi->groups[tmp_group].rates[tmp_idx].prob_avg;
tmp_mcs_tp = minstrel_ht_get_tp_avg(mi, tmp_group, tmp_idx, tmp_prob);
if (tmp_cck_tp_rate && tmp_cck_tp > tmp_mcs_tp) {
continue;
tmp_idx = mg->max_group_prob_rate % MCS_GROUP_RATES;
- tmp_prob = mi->groups[group].rates[tmp_idx].prob_ewma;
+ tmp_prob = mi->groups[group].rates[tmp_idx].prob_avg;
if (tmp_tp < minstrel_ht_get_tp_avg(mi, group, tmp_idx, tmp_prob) &&
(minstrel_mcs_groups[group].streams < tmp_max_streams)) {
* If that fails, look again for a rate that is at least as fast
*/
mrs = minstrel_get_ratestats(mi, mi->max_tp_rate[0]);
- faster_rate = mrs->prob_ewma > MINSTREL_FRAC(75, 100);
+ faster_rate = mrs->prob_avg > MINSTREL_FRAC(75, 100);
minstrel_ht_find_probe_rates(mi, rates, &n_rates, faster_rate);
if (!n_rates && faster_rate)
minstrel_ht_find_probe_rates(mi, rates, &n_rates, false);
mrs = &mg->rates[i];
mrs->retry_updated = false;
- minstrel_calc_rate_stats(mrs);
- cur_prob = mrs->prob_ewma;
+ minstrel_calc_rate_stats(mp, mrs);
+ cur_prob = mrs->prob_avg;
if (minstrel_ht_get_tp_avg(mi, group, i, cur_prob) == 0)
continue;
/* try to sample all available rates during each interval */
mi->sample_count *= 8;
+ if (mp->new_avg)
+ mi->sample_count /= 2;
if (sample)
minstrel_ht_rate_sample_switch(mp, mi);
struct ieee80211_tx_rate *ar = info->status.rates;
struct minstrel_rate_stats *rate, *rate2, *rate_sample = NULL;
struct minstrel_priv *mp = priv;
+ u32 update_interval = mp->update_interval / 2;
bool last, update = false;
bool sample_status = false;
int i;
switch (mi->sample_mode) {
case MINSTREL_SAMPLE_IDLE:
+ if (mp->new_avg &&
+ (mp->hw->max_rates > 1 ||
+ mi->total_packets_cur < SAMPLE_SWITCH_THR))
+ update_interval /= 2;
break;
case MINSTREL_SAMPLE_ACTIVE:
*/
rate = minstrel_get_ratestats(mi, mi->max_tp_rate[0]);
if (rate->attempts > 30 &&
- MINSTREL_FRAC(rate->success, rate->attempts) <
- MINSTREL_FRAC(20, 100)) {
+ rate->success < rate->attempts / 4) {
minstrel_downgrade_rate(mi, &mi->max_tp_rate[0], true);
update = true;
}
rate2 = minstrel_get_ratestats(mi, mi->max_tp_rate[1]);
if (rate2->attempts > 30 &&
- MINSTREL_FRAC(rate2->success, rate2->attempts) <
- MINSTREL_FRAC(20, 100)) {
+ rate2->success < rate2->attempts / 4) {
minstrel_downgrade_rate(mi, &mi->max_tp_rate[1], false);
update = true;
}
}
- if (time_after(jiffies, mi->last_stats_update +
- (mp->update_interval / 2 * HZ) / 1000)) {
+ if (time_after(jiffies, mi->last_stats_update + update_interval)) {
update = true;
minstrel_ht_update_stats(mp, mi, true);
}
unsigned int overhead = 0, overhead_rtscts = 0;
mrs = minstrel_get_ratestats(mi, index);
- if (mrs->prob_ewma < MINSTREL_FRAC(1, 10)) {
+ if (mrs->prob_avg < MINSTREL_FRAC(1, 10)) {
mrs->retry_count = 1;
mrs->retry_count_rtscts = 1;
return;
if (!mrs->retry_updated)
minstrel_calc_retransmit(mp, mi, index);
- if (mrs->prob_ewma < MINSTREL_FRAC(20, 100) || !mrs->retry_count) {
+ if (mrs->prob_avg < MINSTREL_FRAC(20, 100) || !mrs->retry_count) {
ratetbl->rate[offset].count = 2;
ratetbl->rate[offset].count_rts = 2;
ratetbl->rate[offset].count_cts = 2;
}
static inline int
-minstrel_ht_get_prob_ewma(struct minstrel_ht_sta *mi, int rate)
+minstrel_ht_get_prob_avg(struct minstrel_ht_sta *mi, int rate)
{
int group = rate / MCS_GROUP_RATES;
rate %= MCS_GROUP_RATES;
- return mi->groups[group].rates[rate].prob_ewma;
+ return mi->groups[group].rates[rate].prob_avg;
}
static int
unsigned int duration;
/* Disable A-MSDU if max_prob_rate is bad */
- if (mi->groups[group].rates[rate].prob_ewma < MINSTREL_FRAC(50, 100))
+ if (mi->groups[group].rates[rate].prob_avg < MINSTREL_FRAC(50, 100))
return 1;
duration = g->duration[rate];
* data packet size
*/
if (duration > MCS_DURATION(1, 0, 260) ||
- (minstrel_ht_get_prob_ewma(mi, mi->max_tp_rate[0]) <
+ (minstrel_ht_get_prob_avg(mi, mi->max_tp_rate[0]) <
MINSTREL_FRAC(75, 100)))
return 3200;
* rate, to avoid wasting airtime.
*/
sample_dur = minstrel_get_duration(sample_idx);
- if (mrs->prob_ewma > MINSTREL_FRAC(95, 100) ||
+ if (mrs->prob_avg > MINSTREL_FRAC(95, 100) ||
minstrel_get_duration(mi->max_prob_rate) * 3 < sample_dur)
return -1;
mp->has_mrr = true;
mp->hw = hw;
- mp->update_interval = 100;
+ mp->update_interval = HZ / 10;
+ mp->new_avg = true;
#ifdef CONFIG_MAC80211_DEBUGFS
mp->fixed_rate_idx = (u32) -1;
&mp->fixed_rate_idx);
debugfs_create_u32("sample_switch", S_IRUGO | S_IWUSR, debugfsdir,
&mp->sample_switch);
+ debugfs_create_bool("new_avg", S_IRUGO | S_IWUSR, debugfsdir,
+ &mp->new_avg);
#endif
minstrel_ht_init_cck_rates(mp);
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_ewma;
+ prob = mi->groups[i].rates[j].prob_avg;
/* convert tp_avg from pkt per second in kbps */
tp_avg = minstrel_ht_get_tp_avg(mi, i, j, prob) * 10;
void minstrel_ht_add_sta_debugfs(void *priv, void *priv_sta, struct dentry *dir);
int minstrel_ht_get_tp_avg(struct minstrel_ht_sta *mi, int group, int rate,
- int prob_ewma);
+ int prob_avg);
#endif
p += sprintf(p, "%6u ", tx_time);
tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100));
- tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_ewma);
- eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
+ tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_avg);
+ eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000);
p += sprintf(p, "%4u.%1u %4u.%1u %3u.%1u"
" %3u %3u %-3u "
p += sprintf(p, "%u,", tx_time);
tp_max = minstrel_ht_get_tp_avg(mi, i, j, MINSTREL_FRAC(100, 100));
- tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_ewma);
- eprob = MINSTREL_TRUNC(mrs->prob_ewma * 1000);
+ tp_avg = minstrel_ht_get_tp_avg(mi, i, j, mrs->prob_avg);
+ eprob = MINSTREL_TRUNC(mrs->prob_avg * 1000);
p += sprintf(p, "%u.%u,%u.%u,%u.%u,%u,%u,"
"%u,%llu,%llu,",
static bool ieee80211_tx_frags(struct ieee80211_local *local,
struct ieee80211_vif *vif,
- struct ieee80211_sta *sta,
+ struct sta_info *sta,
struct sk_buff_head *skbs,
bool txpending)
{
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
info->control.vif = vif;
- control.sta = sta;
+ control.sta = sta ? &sta->sta : NULL;
__skb_unlink(skb, skbs);
drv_tx(local, &control, skb);
struct ieee80211_tx_info *info;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_vif *vif;
- struct ieee80211_sta *pubsta;
struct sk_buff *skb;
bool result = true;
__le16 fc;
if (sta && !sta->uploaded)
sta = NULL;
- if (sta)
- pubsta = &sta->sta;
- else
- pubsta = NULL;
-
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
if (sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {
break;
}
- result = ieee80211_tx_frags(local, vif, pubsta, skbs,
- txpending);
+ result = ieee80211_tx_frags(local, vif, sta, skbs, txpending);
ieee80211_tpt_led_trig_tx(local, fc, led_len);
struct ieee80211_sub_if_data, u.ap);
__skb_queue_tail(&tx.skbs, skb);
- ieee80211_tx_frags(local, &sdata->vif, &sta->sta, &tx.skbs, false);
+ ieee80211_tx_frags(local, &sdata->vif, sta, &tx.skbs, false);
return true;
}
/* leave request id zero for legacy request
* or if driver does not support multi-scheduled scan
*/
- if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
- while (!sched_scan_req->reqid)
- sched_scan_req->reqid = cfg80211_assign_cookie(rdev);
- }
+ if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1)
+ sched_scan_req->reqid = cfg80211_assign_cookie(rdev);
err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
if (err)
git.samba.org / sfrench / cifs-2.6.git / commitdiff