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authorTomas Winkler <tomas.winkler@intel.com>2008-01-27 20:41:38 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:10:00 -0800
commitfa254a68076bf7ae21747fe2cdb15db306938d78 (patch)
tree689be73cb01da13f7b24cec302eaf9337dd8b1c0 /drivers
parentc33104f0a782a7746e5d3b975288a4fb3b8293ed (diff)
downloadlinux-fa254a68076bf7ae21747fe2cdb15db306938d78.tar.gz
iwlwifi: 3954 renames iwl3945_rate_scale_priv to iwl3945_rs_sta
This patch renames iwl3945_rate_scale_priv to iwl3945_rs_sta as it better represents the purpose of this variable. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945-rs.c206
1 files changed, 104 insertions, 102 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index d79f18c4195..80d31ae51e7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -52,7 +52,7 @@ struct iwl3945_rate_scale_data {
unsigned long stamp;
};
-struct iwl3945_rate_scale_priv {
+struct iwl3945_rs_sta {
spinlock_t lock;
s32 *expected_tpt;
unsigned long last_partial_flush;
@@ -181,7 +181,7 @@ static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window)
* 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;
@@ -193,19 +193,19 @@ static int iwl3945_rate_scale_flush_windows(struct iwl3945_rate_scale_priv *rs_p
* 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;
@@ -216,28 +216,28 @@ static int iwl3945_rate_scale_flush_windows(struct iwl3945_rate_scale_priv *rs_p
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);
@@ -255,23 +255,23 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data)
} 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");
}
@@ -283,7 +283,7 @@ static void iwl3945_bg_rate_scale_flush(unsigned long data)
* 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)
{
@@ -295,7 +295,7 @@ static void iwl3945_collect_tx_data(struct iwl3945_rate_scale_priv *rs_priv,
}
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
@@ -323,7 +323,7 @@ static void iwl3945_collect_tx_data(struct iwl3945_rate_scale_priv *rs_priv,
/* Tag this window as having been updated */
window->stamp = jiffies;
- spin_unlock_irqrestore(&rs_priv->lock, flags);
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
}
}
@@ -373,49 +373,49 @@ static void rs_clear(void *priv)
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");
}
@@ -464,7 +464,7 @@ static void rs_tx_status(void *priv_rate,
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");
@@ -485,9 +485,9 @@ static void rs_tx_status(void *priv_rate,
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;
@@ -514,8 +514,8 @@ static void rs_tx_status(void *priv_rate,
/* 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);
@@ -533,25 +533,25 @@ static void rs_tx_status(void *priv_rate,
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);
@@ -560,8 +560,8 @@ static void rs_tx_status(void *priv_rate,
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;
@@ -595,7 +595,7 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rate_scale_priv *rs_priv,
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;
@@ -608,7 +608,7 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rate_scale_priv *rs_priv,
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;
@@ -646,7 +646,7 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
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;
@@ -684,10 +684,10 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
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) {
@@ -697,24 +697,24 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
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, "
@@ -722,27 +722,27 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
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;
@@ -840,7 +840,7 @@ int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
{
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;
@@ -858,8 +858,8 @@ int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
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;
@@ -871,15 +871,16 @@ int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
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;
@@ -893,7 +894,7 @@ int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
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.
@@ -919,7 +920,7 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
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");
@@ -939,33 +940,33 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
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)
@@ -973,11 +974,12 @@ void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
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)