unsigned long stamp;
};
-struct iwl3945_rate_scale_priv {
+struct iwl3945_rs_sta {
spinlock_t lock;
s32 *expected_tpt;
unsigned long last_partial_flush;
* not flushed. If there were any that were not flushed, then
* reschedule the rate flushing routine.
*/
-static int iwl3945_rate_scale_flush_windows(struct iwl3945_rate_scale_priv *rs_priv)
+static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta)
{
int unflushed = 0;
int i;
* since we flushed, clear out the gathered statistics
*/
for (i = 0; i < IWL_RATE_COUNT; i++) {
- if (!rs_priv->win[i].counter)
+ if (!rs_sta->win[i].counter)
continue;
- spin_lock_irqsave(&rs_priv->lock, flags);
- if (time_after(jiffies, rs_priv->win[i].stamp +
+ spin_lock_irqsave(&rs_sta->lock, flags);
+ if (time_after(jiffies, rs_sta->win[i].stamp +
IWL_RATE_WIN_FLUSH)) {
IWL_DEBUG_RATE("flushing %d samples of rate "
"index %d\n",
- rs_priv->win[i].counter, i);
- iwl3945_clear_window(&rs_priv->win[i]);
+ rs_sta->win[i].counter, i);
+ iwl3945_clear_window(&rs_sta->win[i]);
} else
unflushed++;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
}
return unflushed;
static void iwl3945_bg_rate_scale_flush(unsigned long data)
{
- struct iwl3945_rate_scale_priv *rs_priv = (void *)data;
+ struct iwl3945_rs_sta *rs_sta = (void *)data;
int unflushed = 0;
unsigned long flags;
u32 packet_count, duration, pps;
IWL_DEBUG_RATE("enter\n");
- unflushed = iwl3945_rate_scale_flush_windows(rs_priv);
+ unflushed = iwl3945_rate_scale_flush_windows(rs_sta);
- spin_lock_irqsave(&rs_priv->lock, flags);
+ spin_lock_irqsave(&rs_sta->lock, flags);
- rs_priv->flush_pending = 0;
+ rs_sta->flush_pending = 0;
/* Number of packets Rx'd since last time this timer ran */
- packet_count = (rs_priv->tx_packets - rs_priv->last_tx_packets) + 1;
+ packet_count = (rs_sta->tx_packets - rs_sta->last_tx_packets) + 1;
- rs_priv->last_tx_packets = rs_priv->tx_packets + 1;
+ rs_sta->last_tx_packets = rs_sta->tx_packets + 1;
if (unflushed) {
duration =
- jiffies_to_msecs(jiffies - rs_priv->last_partial_flush);
-/* duration = jiffies_to_msecs(rs_priv->flush_time); */
+ jiffies_to_msecs(jiffies - rs_sta->last_partial_flush);
+/* duration = jiffies_to_msecs(rs_sta->flush_time); */
IWL_DEBUG_RATE("Tx'd %d packets in %dms\n",
packet_count, duration);
} else
duration = IWL_RATE_FLUSH_MAX;
- rs_priv->flush_time = msecs_to_jiffies(duration);
+ rs_sta->flush_time = msecs_to_jiffies(duration);
IWL_DEBUG_RATE("new flush period: %d msec ave %d\n",
duration, packet_count);
- mod_timer(&rs_priv->rate_scale_flush, jiffies +
- rs_priv->flush_time);
+ mod_timer(&rs_sta->rate_scale_flush, jiffies +
+ rs_sta->flush_time);
- rs_priv->last_partial_flush = jiffies;
+ rs_sta->last_partial_flush = jiffies;
}
/* If there weren't any unflushed entries, we don't schedule the timer
* to run again */
- rs_priv->last_flush = jiffies;
+ rs_sta->last_flush = jiffies;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
IWL_DEBUG_RATE("leave\n");
}
* at this rate. window->data contains the bitmask of successful
* packets.
*/
-static void iwl3945_collect_tx_data(struct iwl3945_rate_scale_priv *rs_priv,
+static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
struct iwl3945_rate_scale_data *window,
int success, int retries)
{
}
while (retries--) {
- spin_lock_irqsave(&rs_priv->lock, flags);
+ spin_lock_irqsave(&rs_sta->lock, flags);
/* If we have filled up the window then subtract one from the
* success counter if the high-bit is counting toward
/* Tag this window as having been updated */
window->stamp = jiffies;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
}
}
static void *rs_alloc_sta(void *priv, gfp_t gfp)
{
- struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rs_sta *rs_sta;
int i;
IWL_DEBUG_RATE("enter\n");
- rs_priv = kzalloc(sizeof(struct iwl3945_rate_scale_priv), gfp);
- if (!rs_priv) {
+ rs_sta = kzalloc(sizeof(struct iwl3945_rs_sta), gfp);
+ if (!rs_sta) {
IWL_DEBUG_RATE("leave: ENOMEM\n");
return NULL;
}
- spin_lock_init(&rs_priv->lock);
+ spin_lock_init(&rs_sta->lock);
- rs_priv->start_rate = IWL_RATE_INVALID;
+ rs_sta->start_rate = IWL_RATE_INVALID;
/* default to just 802.11b */
- rs_priv->expected_tpt = iwl3945_expected_tpt_b;
+ rs_sta->expected_tpt = iwl3945_expected_tpt_b;
- rs_priv->last_partial_flush = jiffies;
- rs_priv->last_flush = jiffies;
- rs_priv->flush_time = IWL_RATE_FLUSH;
- rs_priv->last_tx_packets = 0;
- rs_priv->ibss_sta_added = 0;
+ rs_sta->last_partial_flush = jiffies;
+ rs_sta->last_flush = jiffies;
+ rs_sta->flush_time = IWL_RATE_FLUSH;
+ rs_sta->last_tx_packets = 0;
+ rs_sta->ibss_sta_added = 0;
- init_timer(&rs_priv->rate_scale_flush);
- rs_priv->rate_scale_flush.data = (unsigned long)rs_priv;
- rs_priv->rate_scale_flush.function = &iwl3945_bg_rate_scale_flush;
+ init_timer(&rs_sta->rate_scale_flush);
+ rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
+ rs_sta->rate_scale_flush.function = &iwl3945_bg_rate_scale_flush;
for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl3945_clear_window(&rs_priv->win[i]);
+ iwl3945_clear_window(&rs_sta->win[i]);
IWL_DEBUG_RATE("leave\n");
- return rs_priv;
+ return rs_sta;
}
static void rs_free_sta(void *priv, void *priv_sta)
{
- struct iwl3945_rate_scale_priv *rs_priv = priv_sta;
+ struct iwl3945_rs_sta *rs_sta = priv_sta;
IWL_DEBUG_RATE("enter\n");
- del_timer_sync(&rs_priv->rate_scale_flush);
- kfree(rs_priv);
+ del_timer_sync(&rs_sta->rate_scale_flush);
+ kfree(rs_sta);
IWL_DEBUG_RATE("leave\n");
}
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rs_sta *rs_sta;
IWL_DEBUG_RATE("enter\n");
return;
}
- rs_priv = (void *)sta->rate_ctrl_priv;
+ rs_sta = (void *)sta->rate_ctrl_priv;
- rs_priv->tx_packets++;
+ rs_sta->tx_packets++;
scale_rate_index = first_index;
last_index = first_index;
/* Update this rate accounting for as many retries
* as was used for it (per current_count) */
- iwl3945_collect_tx_data(rs_priv,
- &rs_priv->win[scale_rate_index],
+ iwl3945_collect_tx_data(rs_sta,
+ &rs_sta->win[scale_rate_index],
0, current_count);
IWL_DEBUG_RATE("Update rate %d for %d retries.\n",
scale_rate_index, current_count);
last_index,
(tx_resp->flags & IEEE80211_TX_STATUS_ACK) ?
"success" : "failure");
- iwl3945_collect_tx_data(rs_priv,
- &rs_priv->win[last_index],
+ iwl3945_collect_tx_data(rs_sta,
+ &rs_sta->win[last_index],
tx_resp->flags & IEEE80211_TX_STATUS_ACK, 1);
/* We updated the rate scale window -- if its been more than
* flush_time since the last run, schedule the flush
* again */
- spin_lock_irqsave(&rs_priv->lock, flags);
+ spin_lock_irqsave(&rs_sta->lock, flags);
- if (!rs_priv->flush_pending &&
- time_after(jiffies, rs_priv->last_partial_flush +
- rs_priv->flush_time)) {
+ if (!rs_sta->flush_pending &&
+ time_after(jiffies, rs_sta->last_partial_flush +
+ rs_sta->flush_time)) {
- rs_priv->flush_pending = 1;
- mod_timer(&rs_priv->rate_scale_flush,
- jiffies + rs_priv->flush_time);
+ rs_sta->flush_pending = 1;
+ mod_timer(&rs_sta->rate_scale_flush,
+ jiffies + rs_sta->flush_time);
}
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
sta_info_put(sta);
return;
}
-static u16 iwl3945_get_adjacent_rate(struct iwl3945_rate_scale_priv *rs_priv,
- u8 index, u16 rate_mask, int phymode)
+static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
+ u8 index, u16 rate_mask, int phymode)
{
u8 high = IWL_RATE_INVALID;
u8 low = IWL_RATE_INVALID;
low = index;
while (low != IWL_RATE_INVALID) {
- if (rs_priv->tgg)
+ if (rs_sta->tgg)
low = iwl3945_rates[low].prev_rs_tgg;
else
low = iwl3945_rates[low].prev_rs;
high = index;
while (high != IWL_RATE_INVALID) {
- if (rs_priv->tgg)
+ if (rs_sta->tgg)
high = iwl3945_rates[high].next_rs_tgg;
else
high = iwl3945_rates[high].next_rs;
u8 high = IWL_RATE_INVALID;
u16 high_low;
int index;
- struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rs_sta *rs_sta;
struct iwl3945_rate_scale_data *window = NULL;
int current_tpt = IWL_INVALID_VALUE;
int low_tpt = IWL_INVALID_VALUE;
if (priv->phymode == (u8) MODE_IEEE80211A)
rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
- rs_priv = (void *)sta->rate_ctrl_priv;
+ rs_sta = (void *)sta->rate_ctrl_priv;
if ((priv->iw_mode == IEEE80211_IF_TYPE_IBSS) &&
- !rs_priv->ibss_sta_added) {
+ !rs_sta->ibss_sta_added) {
u8 sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
if (sta_id == IWL_INVALID_STATION) {
hdr->addr1, 0, CMD_ASYNC);
}
if (sta_id != IWL_INVALID_STATION)
- rs_priv->ibss_sta_added = 1;
+ rs_sta->ibss_sta_added = 1;
}
- spin_lock_irqsave(&rs_priv->lock, flags);
+ spin_lock_irqsave(&rs_sta->lock, flags);
- if (rs_priv->start_rate != IWL_RATE_INVALID) {
- index = rs_priv->start_rate;
- rs_priv->start_rate = IWL_RATE_INVALID;
+ if (rs_sta->start_rate != IWL_RATE_INVALID) {
+ index = rs_sta->start_rate;
+ rs_sta->start_rate = IWL_RATE_INVALID;
}
- window = &(rs_priv->win[index]);
+ window = &(rs_sta->win[index]);
fail_count = window->counter - window->success_counter;
if (((fail_count <= IWL_RATE_MIN_FAILURE_TH) &&
(window->success_counter < IWL_RATE_MIN_SUCCESS_TH))) {
window->average_tpt = IWL_INVALID_VALUE;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
IWL_DEBUG_RATE("Invalid average_tpt on rate %d: "
"counter: %d, success_counter: %d, "
index,
window->counter,
window->success_counter,
- rs_priv->expected_tpt ? "not " : "");
+ rs_sta->expected_tpt ? "not " : "");
goto out;
}
window->average_tpt = ((window->success_ratio *
- rs_priv->expected_tpt[index] + 64) / 128);
+ rs_sta->expected_tpt[index] + 64) / 128);
current_tpt = window->average_tpt;
- high_low = iwl3945_get_adjacent_rate(rs_priv, index, rate_mask,
+ high_low = iwl3945_get_adjacent_rate(rs_sta, index, rate_mask,
local->hw.conf.phymode);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
if (low != IWL_RATE_INVALID)
- low_tpt = rs_priv->win[low].average_tpt;
+ low_tpt = rs_sta->win[low].average_tpt;
if (high != IWL_RATE_INVALID)
- high_tpt = rs_priv->win[high].average_tpt;
+ high_tpt = rs_sta->win[high].average_tpt;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
scale_action = 1;
{
struct ieee80211_local *local = hw_to_local(hw);
struct iwl3945_priv *priv = hw->priv;
- struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rs_sta *rs_sta;
struct sta_info *sta;
unsigned long flags;
int count = 0, i;
return sprintf(buf, "station %d not found\n", sta_id);
}
- rs_priv = (void *)sta->rate_ctrl_priv;
- spin_lock_irqsave(&rs_priv->lock, flags);
+ rs_sta = (void *)sta->rate_ctrl_priv;
+ spin_lock_irqsave(&rs_sta->lock, flags);
i = IWL_RATE_54M_INDEX;
while (1) {
u64 mask;
mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
buf[count++] =
- (rs_priv->win[i].data & mask) ? '1' : '0';
+ (rs_sta->win[i].data & mask) ? '1' : '0';
- samples += rs_priv->win[i].counter;
- good += rs_priv->win[i].success_counter;
- success += rs_priv->win[i].success_counter * iwl3945_rates[i].ieee;
+ samples += rs_sta->win[i].counter;
+ good += rs_sta->win[i].success_counter;
+ success += rs_sta->win[i].success_counter *
+ iwl3945_rates[i].ieee;
- if (rs_priv->win[i].stamp) {
+ if (rs_sta->win[i].stamp) {
int delta =
- jiffies_to_msecs(now - rs_priv->win[i].stamp);
+ jiffies_to_msecs(now - rs_sta->win[i].stamp);
if (delta > max_time)
max_time = delta;
break;
i = j;
}
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
sta_info_put(sta);
/* Display the average rate of all samples taken.
s32 rssi = 0;
unsigned long flags;
struct ieee80211_local *local = hw_to_local(hw);
- struct iwl3945_rate_scale_priv *rs_priv;
+ struct iwl3945_rs_sta *rs_sta;
struct sta_info *sta;
IWL_DEBUG_RATE("enter\n");
return;
}
- rs_priv = (void *)sta->rate_ctrl_priv;
+ rs_sta = (void *)sta->rate_ctrl_priv;
- spin_lock_irqsave(&rs_priv->lock, flags);
+ spin_lock_irqsave(&rs_sta->lock, flags);
- rs_priv->tgg = 0;
+ rs_sta->tgg = 0;
switch (priv->phymode) {
case MODE_IEEE80211G:
if (priv->active_rxon.flags & RXON_FLG_TGG_PROTECT_MSK) {
- rs_priv->tgg = 1;
- rs_priv->expected_tpt = iwl3945_expected_tpt_g_prot;
+ rs_sta->tgg = 1;
+ rs_sta->expected_tpt = iwl3945_expected_tpt_g_prot;
} else
- rs_priv->expected_tpt = iwl3945_expected_tpt_g;
+ rs_sta->expected_tpt = iwl3945_expected_tpt_g;
break;
case MODE_IEEE80211A:
- rs_priv->expected_tpt = iwl3945_expected_tpt_a;
+ rs_sta->expected_tpt = iwl3945_expected_tpt_a;
break;
default:
IWL_WARNING("Invalid phymode. Defaulting to 802.11b\n");
case MODE_IEEE80211B:
- rs_priv->expected_tpt = iwl3945_expected_tpt_b;
+ rs_sta->expected_tpt = iwl3945_expected_tpt_b;
break;
}
sta_info_put(sta);
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
rssi = priv->last_rx_rssi;
if (rssi == 0)
IWL_DEBUG(IWL_DL_INFO | IWL_DL_RATE, "Network RSSI: %d\n", rssi);
- rs_priv->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->phymode);
+ rs_sta->start_rate =
+ iwl3945_get_rate_index_by_rssi(rssi, priv->phymode);
IWL_DEBUG_RATE("leave: rssi %d assign rate index: "
- "%d (plcp 0x%x)\n", rssi, rs_priv->start_rate,
- iwl3945_rates[rs_priv->start_rate].plcp);
+ "%d (plcp 0x%x)\n", rssi, rs_sta->start_rate,
+ iwl3945_rates[rs_sta->start_rate].plcp);
}
void iwl3945_rate_control_register(struct ieee80211_hw *hw)
projects / linux-2.6-omap-h63xx.git / commitdiff