*/
#include "core.h"
+/* FIXME: remove this include! */
#include "../net/mac80211/rate.h"
static u32 tx_triglevel_max;
}
-static void ath_setup_rates(struct ieee80211_local *local, struct sta_info *sta)
+static void ath_setup_rates(struct ath_softc *sc,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct ath_rate_node *rc_priv)
{
- struct ieee80211_supported_band *sband;
- struct ieee80211_hw *hw = local_to_hw(local);
- struct ath_softc *sc = hw->priv;
- struct ath_rate_node *rc_priv = sta->rate_ctrl_priv;
int i, j = 0;
DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
for (i = 0; i < sband->n_bitrates; i++) {
- if (sta->sta.supp_rates[local->hw.conf.channel->band] & BIT(i)) {
+ if (sta->supp_rates[sband->band] & BIT(i)) {
rc_priv->neg_rates.rs_rates[j]
= (sband->bitrates[i].bitrate * 2) / 10;
j++;
}
/* Rate Control callbacks */
-static void ath_tx_status(void *priv, struct net_device *dev,
+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_tx_info_priv *tx_info_priv;
struct ath_node *an;
- struct sta_info *sta;
- struct ieee80211_local *local;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr;
__le16 fc;
- local = hw_to_local(sc->hw);
hdr = (struct ieee80211_hdr *)skb->data;
fc = hdr->frame_control;
tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
an = ath_node_find(sc, hdr->addr1);
spin_unlock_bh(&sc->node_lock);
- sta = sta_info_get(local, hdr->addr1);
- if (!an || !sta || !ieee80211_is_data(fc)) {
+ if (!an || !priv_sta || !ieee80211_is_data(fc)) {
if (tx_info->driver_data[0] != NULL) {
kfree(tx_info->driver_data[0]);
tx_info->driver_data[0] = NULL;
return;
}
if (tx_info->driver_data[0] != NULL) {
- ath_rate_tx_complete(sc, an, sta->rate_ctrl_priv, tx_info_priv);
+ ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv);
kfree(tx_info->driver_data[0]);
tx_info->driver_data[0] = NULL;
}
}
static void ath_tx_aggr_resp(struct ath_softc *sc,
- struct sta_info *sta,
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
struct ath_node *an,
u8 tidno)
{
- struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_local *local;
struct ath_atx_tid *txtid;
- struct ieee80211_supported_band *sband;
u16 buffersize = 0;
int state;
- DECLARE_MAC_BUF(mac);
+ struct sta_info *si;
if (!(sc->sc_flags & SC_OP_TXAGGR))
return;
if (!txtid->paused)
return;
- local = hw_to_local(sc->hw);
- sband = hw->wiphy->bands[hw->conf.channel->band];
+ /*
+ * XXX: This is entirely busted, we aren't supposed to
+ * access the sta from here because it's internal
+ * to mac80211, and looking at the state without
+ * locking is wrong too.
+ */
+ si = container_of(sta, struct sta_info, sta);
buffersize = IEEE80211_MIN_AMPDU_BUF <<
sband->ht_info.ampdu_factor; /* FIXME */
- state = sta->ampdu_mlme.tid_state_tx[tidno];
+ state = si->ampdu_mlme.tid_state_tx[tidno];
if (state & HT_ADDBA_RECEIVED_MSK) {
txtid->addba_exchangecomplete = 1;
}
}
-static void ath_get_rate(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
+static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb, struct rate_selection *sel)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ath_softc *sc = (struct ath_softc *)priv;
+ struct ath_softc *sc = priv;
struct ieee80211_hw *hw = sc->hw;
struct ath_tx_info_priv *tx_info_priv;
- struct ath_rate_node *ath_rc_priv;
+ struct ath_rate_node *ath_rc_priv = priv_sta;
struct ath_node *an;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
int is_probe = FALSE, chk, ret;
ASSERT(tx_info->driver_data[0] != NULL);
tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
- sta = sta_info_get(local, hdr->addr1);
- lowest_idx = rate_lowest_index(local, sband, sta);
+ lowest_idx = rate_lowest_index(sband, sta);
tx_info_priv->min_rate = (sband->bitrates[lowest_idx].bitrate * 2) / 10;
/* lowest rate for management and multicast/broadcast frames */
if (!ieee80211_is_data(fc) ||
return;
}
- ath_rc_priv = sta->rate_ctrl_priv;
-
/* Find tx rate for unicast frames */
ath_rate_findrate(sc, ath_rc_priv,
ATH_11N_TXMAXTRY, 4,
&is_probe,
false);
if (is_probe)
- sel->probe_idx = ((struct ath_tx_ratectrl *)
- sta->rate_ctrl_priv)->probe_rate;
+ sel->probe_idx = ath_rc_priv->tx_ratectrl.probe_rate;
/* Ratecontrol sometimes returns invalid rate index */
if (tx_info_priv->rcs[0].rix != 0xff)
__func__,
print_mac(mac, hdr->addr1));
} else if (chk == AGGR_EXCHANGE_PROGRESS)
- ath_tx_aggr_resp(sc, sta, an, tid);
+ ath_tx_aggr_resp(sc, sband, sta, an, tid);
}
}
}
-static void ath_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
+static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
{
- struct ieee80211_supported_band *sband;
- struct ieee80211_hw *hw = local_to_hw(local);
- struct ieee80211_conf *conf = &local->hw.conf;
- struct ath_softc *sc = hw->priv;
+ struct ath_softc *sc = priv;
struct ath_rate_node *ath_rc_priv = priv_sta;
int i, j = 0;
DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- ath_setup_rates(local, sta);
- if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ ath_setup_rates(sc, sband, sta, ath_rc_priv);
+ if (sc->hw->conf.flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
for (i = 0; i < MCS_SET_SIZE; i++) {
- if (conf->ht_conf.supp_mcs_set[i/8] & (1<<(i%8)))
+ if (sc->hw->conf.ht_conf.supp_mcs_set[i/8] & (1<<(i%8)))
ath_rc_priv->neg_ht_rates.rs_rates[j++] = i;
if (j == ATH_RATE_MAX)
break;
}
ath_rc_priv->neg_ht_rates.rs_nrates = j;
}
- ath_rc_node_update(hw, priv_sta);
+ ath_rc_node_update(sc->hw, priv_sta);
}
static void ath_rate_clear(void *priv)
return;
}
-static void *ath_rate_alloc(struct ieee80211_local *local)
+static void *ath_rate_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
{
- struct ieee80211_hw *hw = local_to_hw(local);
struct ath_softc *sc = hw->priv;
DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__);
- return local->hw.priv;
+ return hw->priv;
}
static void ath_rate_free(void *priv)
return;
}
-static void *ath_rate_alloc_sta(void *priv, gfp_t gfp)
+static void *ath_rate_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
{
struct ath_softc *sc = priv;
struct ath_vap *avp = sc->sc_vaps[0];
return rate_priv;
}
-static void ath_rate_free_sta(void *priv, void *priv_sta)
+static void ath_rate_free_sta(void *priv, struct ieee80211_sta *sta,
+ void *priv_sta)
{
struct ath_rate_node *rate_priv = priv_sta;
struct ath_softc *sc = priv;
.alloc = ath_rate_alloc,
.free = ath_rate_free,
.alloc_sta = ath_rate_alloc_sta,
- .free_sta = ath_rate_free_sta
+ .free_sta = ath_rate_free_sta,
};
int ath_rate_control_register(void)
#include <linux/workqueue.h>
-#include "../net/mac80211/rate.h"
-
#include "iwl-3945.h"
#define RS_NAME "iwl-3945-rs"
}
}
-static void rs_rate_init(void *priv_rate, void *priv_sta,
- struct ieee80211_local *local, struct sta_info *sta)
+static void rs_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
{
- struct iwl3945_rs_sta *rs_sta = (void *)sta->rate_ctrl_priv;
+ struct iwl3945_rs_sta *rs_sta = priv_sta;
int i;
IWL_DEBUG_RATE("enter\n");
* after assoc.. */
for (i = IWL_RATE_COUNT - 1; i >= 0; i--) {
- if (sta->sta.supp_rates[local->hw.conf.channel->band] & (1 << i)) {
+ if (sta->supp_rates[sband->band] & (1 << i)) {
rs_sta->last_txrate_idx = i;
break;
}
}
/* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */
- if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ if (sband->band == IEEE80211_BAND_5GHZ)
rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
IWL_DEBUG_RATE("leave\n");
}
-static void *rs_alloc(struct ieee80211_local *local)
+static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
{
- return local->hw.priv;
+ return hw->priv;
}
/* rate scale requires free function to be implemented */
{
return;
}
+
static void rs_clear(void *priv)
{
return;
}
-static void *rs_alloc_sta(void *priv, gfp_t gfp)
+static void *rs_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
{
struct iwl3945_rs_sta *rs_sta;
+ struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
int i;
+ /*
+ * XXX: If it's using sta->drv_priv anyway, it might
+ * as well just put all the information there.
+ */
+
IWL_DEBUG_RATE("enter\n");
rs_sta = kzalloc(sizeof(struct iwl3945_rs_sta), gfp);
return NULL;
}
+ psta->rs_sta = rs_sta;
+
spin_lock_init(&rs_sta->lock);
rs_sta->start_rate = IWL_RATE_INVALID;
return rs_sta;
}
-static void rs_free_sta(void *priv, void *priv_sta)
+static void rs_free_sta(void *priv, struct ieee80211_sta *sta,
+ void *priv_sta)
{
+ struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
struct iwl3945_rs_sta *rs_sta = priv_sta;
+ psta->rs_sta = NULL;
+
IWL_DEBUG_RATE("enter\n");
del_timer_sync(&rs_sta->rate_scale_flush);
kfree(rs_sta);
* NOTE: Uses iwl3945_priv->retry_rate for the # of retries attempted by
* the hardware for each rate.
*/
-static void rs_tx_status(void *priv_rate,
- struct net_device *dev,
+static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
{
u8 retries, current_count;
int scale_rate_index, first_index, last_index;
unsigned long flags;
- struct sta_info *sta;
- 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_rs_sta *rs_sta;
- struct ieee80211_supported_band *sband;
+ struct iwl3945_rs_sta *rs_sta = priv_sta;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
IWL_DEBUG_RATE("enter\n");
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-
retries = info->status.retry_count;
first_index = sband->bitrates[info->tx_rate_idx].hw_value;
if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
return;
}
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
- if (!sta || !sta->rate_ctrl_priv) {
- rcu_read_unlock();
+ if (!priv_sta) {
IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
return;
}
- rs_sta = (void *)sta->rate_ctrl_priv;
-
rs_sta->tx_packets++;
scale_rate_index = first_index;
spin_unlock_irqrestore(&rs_sta->lock, flags);
- rcu_read_unlock();
-
IWL_DEBUG_RATE("leave\n");
return;
* rate table and must reference the driver allocated rate table
*
*/
-static void rs_get_rate(void *priv_rate, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb, struct rate_selection *sel)
{
u8 low = IWL_RATE_INVALID;
u8 high = IWL_RATE_INVALID;
u16 high_low;
int index;
- struct iwl3945_rs_sta *rs_sta;
+ struct iwl3945_rs_sta *rs_sta = priv_sta;
struct iwl3945_rate_scale_data *window = NULL;
int current_tpt = IWL_INV_TPT;
int low_tpt = IWL_INV_TPT;
u32 fail_count;
s8 scale_action = 0;
unsigned long flags;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct sta_info *sta;
u16 fc, rate_mask;
- struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
+ struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r;
DECLARE_MAC_BUF(mac);
IWL_DEBUG_RATE("enter\n");
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
-
/* Send management frames and broadcast/multicast data using lowest
* rate. */
fc = le16_to_cpu(hdr->frame_control);
if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
is_multicast_ether_addr(hdr->addr1) ||
- !sta || !sta->rate_ctrl_priv) {
+ !sta || !priv_sta) {
IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
- sel->rate_idx = rate_lowest_index(local, sband, sta);
- rcu_read_unlock();
+ sel->rate_idx = rate_lowest_index(sband, sta);
return;
}
- rs_sta = (void *)sta->rate_ctrl_priv;
-
- rate_mask = sta->sta.supp_rates[sband->band];
+ rate_mask = sta->supp_rates[sband->band];
index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
if (sband->band == IEEE80211_BAND_5GHZ)
else
sel->rate_idx = rs_sta->last_txrate_idx;
- rcu_read_unlock();
-
IWL_DEBUG_RATE("leave: %d\n", index);
}
.free_sta = rs_free_sta,
};
-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_rs_sta *rs_sta;
- struct sta_info *sta;
- unsigned long flags;
- int count = 0, i;
- u32 samples = 0, success = 0, good = 0;
- unsigned long now = jiffies;
- u32 max_time = 0;
-
- rcu_read_lock();
-
- sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
- if (!sta || !sta->rate_ctrl_priv) {
- if (sta)
- IWL_DEBUG_RATE("leave - no private rate data!\n");
- else
- IWL_DEBUG_RATE("leave - no station!\n");
- rcu_read_unlock();
- return sprintf(buf, "station %d not found\n", sta_id);
- }
-
- rs_sta = (void *)sta->rate_ctrl_priv;
- spin_lock_irqsave(&rs_sta->lock, flags);
- i = IWL_RATE_54M_INDEX;
- while (1) {
- u64 mask;
- int j;
-
- count +=
- sprintf(&buf[count], " %2dMbs: ", iwl3945_rates[i].ieee / 2);
-
- mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
- for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
- buf[count++] =
- (rs_sta->win[i].data & mask) ? '1' : '0';
-
- 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_sta->win[i].stamp) {
- int delta =
- jiffies_to_msecs(now - rs_sta->win[i].stamp);
-
- if (delta > max_time)
- max_time = delta;
-
- count += sprintf(&buf[count], "%5dms\n", delta);
- } else
- buf[count++] = '\n';
-
- j = iwl3945_get_prev_ieee_rate(i);
- if (j == i)
- break;
- i = j;
- }
- spin_unlock_irqrestore(&rs_sta->lock, flags);
- rcu_read_unlock();
-
- /* Display the average rate of all samples taken.
- *
- * NOTE: We multiple # of samples by 2 since the IEEE measurement
- * added from iwl3945_rates is actually 2X the rate */
- if (samples)
- count += sprintf(
- &buf[count],
- "\nAverage rate is %3d.%02dMbs over last %4dms\n"
- "%3d%% success (%d good packets over %d tries)\n",
- success / (2 * samples), (success * 5 / samples) % 10,
- max_time, good * 100 / samples, good, samples);
- else
- count += sprintf(&buf[count], "\nAverage rate: 0Mbs\n");
-
- return count;
-}
-
void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
{
struct iwl3945_priv *priv = hw->priv;
s32 rssi = 0;
unsigned long flags;
- struct ieee80211_local *local = hw_to_local(hw);
struct iwl3945_rs_sta *rs_sta;
- struct sta_info *sta;
+ struct ieee80211_sta *sta;
+ struct iwl3945_sta_priv *psta;
IWL_DEBUG_RATE("enter\n");
- if (!local->rate_ctrl->ops->name ||
- strcmp(local->rate_ctrl->ops->name, RS_NAME)) {
- IWL_WARNING("iwl-3945-rs not selected as rate control algo!\n");
- IWL_DEBUG_RATE("leave - mac80211 picked the wrong RC algo.\n");
- return;
- }
-
rcu_read_lock();
- sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
- if (!sta || !sta->rate_ctrl_priv) {
+ sta = ieee80211_find_sta(hw, priv->stations[sta_id].sta.sta.addr);
+ psta = (void *) sta->drv_priv;
+ if (!sta || !psta) {
IWL_DEBUG_RATE("leave - no private rate data!\n");
rcu_read_unlock();
return;
}
- rs_sta = (void *)sta->rate_ctrl_priv;
+ rs_sta = psta->rs_sta;
spin_lock_irqsave(&rs_sta->lock, flags);
return rate;
}
-/**
- * iwl3945_fill_rs_info - Fill an output text buffer with the rate representation
- *
- * NOTE: This is provided as a quick mechanism for a user to visualize
- * the performance of the rate control algorithm and is not meant to be
- * parsed software.
- */
-extern int iwl3945_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
-
/**
* iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
*
extern int iwl3945_param_hwcrypto;
extern int iwl3945_param_queues_num;
+struct iwl3945_sta_priv {
+ struct iwl3945_rs_sta *rs_sta;
+};
+
enum iwl3945_antenna {
IWL_ANTENNA_DIVERSITY,
IWL_ANTENNA_MAIN,
#include <linux/workqueue.h>
-#include "../net/mac80211/rate.h"
-
#include "iwl-dev.h"
#include "iwl-sta.h"
#include "iwl-core.h"
};
static void rs_rate_scale_perform(struct iwl_priv *priv,
- struct net_device *dev,
struct ieee80211_hdr *hdr,
- struct sta_info *sta);
+ struct ieee80211_sta *sta,
+ struct iwl_lq_sta *lq_sta);
static void rs_fill_link_cmd(const struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
static void rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv,
struct iwl_lq_sta *lq_data, u8 tid,
- struct sta_info *sta)
+ struct ieee80211_sta *sta)
{
DECLARE_MAC_BUF(mac);
if (rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
IWL_DEBUG_HT("Starting Tx agg: STA: %s tid: %d\n",
- print_mac(mac, sta->sta.addr), tid);
- ieee80211_start_tx_ba_session(priv->hw, sta->sta.addr, tid);
+ print_mac(mac, sta->addr), tid);
+ ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
}
}
static void rs_tl_turn_on_agg(struct iwl_priv *priv, u8 tid,
struct iwl_lq_sta *lq_data,
- struct sta_info *sta)
+ struct ieee80211_sta *sta)
{
if ((tid < TID_MAX_LOAD_COUNT))
rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
/*
* mac80211 sends us Tx status
*/
-static void rs_tx_status(void *priv_rate, struct net_device *dev,
+static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
{
int status;
int rs_index, index = 0;
struct iwl_lq_sta *lq_sta;
struct iwl_link_quality_cmd *table;
- struct sta_info *sta;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = local_to_hw(local);
+ struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+ struct ieee80211_hw *hw = priv->hw;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_rate_scale_data *window = NULL;
struct iwl_rate_scale_data *search_win = NULL;
if (retries > 15)
retries = 15;
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta || !sta->rate_ctrl_priv)
- goto out;
-
-
- lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
+ lq_sta = (struct iwl_lq_sta *)priv_sta;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
!lq_sta->ibss_sta_added)
}
/* See if there's a better rate or modulation mode to try. */
- rs_rate_scale_perform(priv, dev, hdr, sta);
+ rs_rate_scale_perform(priv, hdr, sta, lq_sta);
out:
- rcu_read_unlock();
return;
}
static int rs_switch_to_mimo2(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta,
struct ieee80211_conf *conf,
- struct sta_info *sta,
+ struct ieee80211_sta *sta,
struct iwl_scale_tbl_info *tbl, int index)
{
u16 rate_mask;
s8 is_green = lq_sta->is_green;
if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->sta.ht_info.ht_supported)
+ !sta->ht_info.ht_supported)
return -1;
- if (((sta->sta.ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
+ if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
== WLAN_HT_CAP_SM_PS_STATIC)
return -1;
static int rs_switch_to_siso(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta,
struct ieee80211_conf *conf,
- struct sta_info *sta,
+ struct ieee80211_sta *sta,
struct iwl_scale_tbl_info *tbl, int index)
{
u16 rate_mask;
s32 rate;
if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
- !sta->sta.ht_info.ht_supported)
+ !sta->ht_info.ht_supported)
return -1;
IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
static int rs_move_legacy_other(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta,
struct ieee80211_conf *conf,
- struct sta_info *sta,
+ struct ieee80211_sta *sta,
int index)
{
struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
static int rs_move_siso_to_other(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta,
struct ieee80211_conf *conf,
- struct sta_info *sta, int index)
+ struct ieee80211_sta *sta, int index)
{
u8 is_green = lq_sta->is_green;
struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
static int rs_move_mimo_to_other(struct iwl_priv *priv,
struct iwl_lq_sta *lq_sta,
struct ieee80211_conf *conf,
- struct sta_info *sta, int index)
+ struct ieee80211_sta *sta, int index)
{
s8 is_green = lq_sta->is_green;
struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
* Do rate scaling and search for new modulation mode.
*/
static void rs_rate_scale_perform(struct iwl_priv *priv,
- struct net_device *dev,
struct ieee80211_hdr *hdr,
- struct sta_info *sta)
+ struct ieee80211_sta *sta,
+ struct iwl_lq_sta *lq_sta)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = local_to_hw(local);
+ struct ieee80211_hw *hw = priv->hw;
struct ieee80211_conf *conf = &hw->conf;
int low = IWL_RATE_INVALID;
int high = IWL_RATE_INVALID;
__le16 fc;
u16 rate_mask;
u8 update_lq = 0;
- struct iwl_lq_sta *lq_sta;
struct iwl_scale_tbl_info *tbl, *tbl1;
u16 rate_scale_index_msk = 0;
u32 rate;
return;
}
- if (!sta || !sta->rate_ctrl_priv)
+ if (!sta || !lq_sta)
return;
- lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
- lq_sta->supp_rates = sta->sta.supp_rates[lq_sta->band];
+ lq_sta->supp_rates = sta->supp_rates[lq_sta->band];
tid = rs_tl_add_packet(lq_sta, hdr);
static void rs_initialize_lq(struct iwl_priv *priv,
struct ieee80211_conf *conf,
- struct sta_info *sta)
+ struct ieee80211_sta *sta,
+ struct iwl_lq_sta *lq_sta)
{
- struct iwl_lq_sta *lq_sta;
struct iwl_scale_tbl_info *tbl;
int rate_idx;
int i;
u8 active_tbl = 0;
u8 valid_tx_ant;
- if (!sta || !sta->rate_ctrl_priv)
+ if (!sta || !lq_sta)
goto out;
- lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
i = lq_sta->last_txrate_idx;
if ((lq_sta->lq.sta_id == 0xff) &&
return;
}
-static void rs_get_rate(void *priv_rate, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb, struct rate_selection *sel)
{
int i;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
+ struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+ struct ieee80211_conf *conf = &priv->hw->conf;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct sta_info *sta;
__le16 fc;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
struct iwl_lq_sta *lq_sta;
IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
-
/* Send management frames and broadcast/multicast data using lowest
* rate. */
fc = hdr->frame_control;
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
- !sta || !sta->rate_ctrl_priv) {
- sel->rate_idx = rate_lowest_index(local, sband, sta);
- goto out;
+ !sta || !priv_sta) {
+ sel->rate_idx = rate_lowest_index(sband, sta);
+ return;
}
- lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
+ lq_sta = (struct iwl_lq_sta *)priv_sta;
i = lq_sta->last_txrate_idx;
if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
lq_sta->lq.sta_id = sta_id;
lq_sta->lq.rs_table[0].rate_n_flags = 0;
lq_sta->ibss_sta_added = 1;
- rs_initialize_lq(priv, conf, sta);
+ rs_initialize_lq(priv, conf, sta, lq_sta);
}
}
if ((i < 0) || (i > IWL_RATE_COUNT)) {
- sel->rate_idx = rate_lowest_index(local, sband, sta);
- goto out;
+ sel->rate_idx = rate_lowest_index(sband, sta);
+ return;
}
if (sband->band == IEEE80211_BAND_5GHZ)
i -= IWL_FIRST_OFDM_RATE;
sel->rate_idx = i;
-out:
- rcu_read_unlock();
}
-static void *rs_alloc_sta(void *priv_rate, gfp_t gfp)
+static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
+ gfp_t gfp)
{
struct iwl_lq_sta *lq_sta;
struct iwl_priv *priv;
return lq_sta;
}
-static void rs_rate_init(void *priv_rate, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
+static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
{
int i, j;
- struct ieee80211_conf *conf = &local->hw.conf;
- struct ieee80211_supported_band *sband;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
+ struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+ struct ieee80211_conf *conf = &priv->hw->conf;
struct iwl_lq_sta *lq_sta = priv_sta;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
lq_sta->flush_timer = 0;
- lq_sta->supp_rates = sta->sta.supp_rates[sband->band];
+ lq_sta->supp_rates = sta->supp_rates[sband->band];
for (j = 0; j < LQ_SIZE; j++)
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]);
lq_sta->ibss_sta_added = 0;
if (priv->iw_mode == NL80211_IFTYPE_AP) {
- u8 sta_id = iwl_find_station(priv, sta->sta.addr);
+ u8 sta_id = iwl_find_station(priv, sta->addr);
DECLARE_MAC_BUF(mac);
/* for IBSS the call are from tasklet */
IWL_DEBUG_RATE("LQ: ADD station %s\n",
- print_mac(mac, sta->sta.addr));
+ print_mac(mac, sta->addr));
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE("LQ: ADD station %s\n",
- print_mac(mac, sta->sta.addr));
- sta_id = iwl_add_station_flags(priv, sta->sta.addr,
+ print_mac(mac, sta->addr));
+ sta_id = iwl_add_station_flags(priv, sta->addr,
0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
/* Find highest tx rate supported by hardware and destination station */
lq_sta->last_txrate_idx = 3;
for (i = 0; i < sband->n_bitrates; i++)
- if (sta->sta.supp_rates[sband->band] & BIT(i))
+ if (sta->supp_rates[sband->band] & BIT(i))
lq_sta->last_txrate_idx = i;
/* For MODE_IEEE80211A, skip over cck rates in global rate table */
- if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+ if (sband->band == IEEE80211_BAND_5GHZ)
lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
lq_sta->is_dup = 0;
lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
lq_sta->drv = priv;
- rs_initialize_lq(priv, conf, sta);
+ rs_initialize_lq(priv, conf, sta, lq_sta);
}
static void rs_fill_link_cmd(const struct iwl_priv *priv,
lq_cmd->agg_params.agg_time_limit = cpu_to_le16(4000);
}
-static void *rs_alloc(struct ieee80211_local *local)
+static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
{
- return local->hw.priv;
+ return hw->priv;
}
/* rate scale requires free function to be implemented */
static void rs_free(void *priv_rate)
#endif /* CONFIG_IWLWIFI_DEBUG */
}
-static void rs_free_sta(void *priv_rate, void *priv_sta)
+static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
+ void *priv_sta)
{
struct iwl_lq_sta *lq_sta = priv_sta;
- struct iwl_priv *priv;
+ struct iwl_priv *priv = priv_r;
- priv = (struct iwl_priv *)priv_rate;
IWL_DEBUG_RATE("enter\n");
kfree(lq_sta);
IWL_DEBUG_RATE("leave\n");
static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
-static ssize_t show_rs_window(struct device *d,
- struct device_attribute *attr,
- char *buf)
-{
- struct iwl3945_priv *priv = d->driver_data;
- return iwl3945_fill_rs_info(priv->hw, buf, IWL_AP_ID);
-}
-static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
-
static ssize_t show_tx_power(struct device *d,
struct device_attribute *attr, char *buf)
{
#endif
&dev_attr_power_level.attr,
&dev_attr_retry_rate.attr,
- &dev_attr_rs_window.attr,
&dev_attr_statistics.attr,
&dev_attr_status.attr,
&dev_attr_temperature.attr,
SET_IEEE80211_DEV(hw, &pdev->dev);
hw->rate_control_algorithm = "iwl-3945-rs";
+ hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
priv = hw->priv;
struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
const u8 *addr);
+
+/* Rate control API */
+/**
+ * struct rate_selection - rate information for/from rate control algorithms
+ *
+ * @rate_idx: selected transmission rate index
+ * @nonerp_idx: Non-ERP rate to use instead if ERP cannot be used
+ * @probe_idx: rate for probing (or -1)
+ * @max_rate_idx: maximum rate index that can be used, this is
+ * input to the algorithm and will be enforced
+ */
+struct rate_selection {
+ s8 rate_idx, nonerp_idx, probe_idx, max_rate_idx;
+};
+
+struct rate_control_ops {
+ struct module *module;
+ const char *name;
+ void *(*alloc)(struct ieee80211_hw *hw, struct dentry *debugfsdir);
+ void (*clear)(void *priv);
+ void (*free)(void *priv);
+
+ void *(*alloc_sta)(void *priv, struct ieee80211_sta *sta, gfp_t gfp);
+ void (*rate_init)(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta);
+ void (*free_sta)(void *priv, struct ieee80211_sta *sta,
+ void *priv_sta);
+
+ void (*tx_status)(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb);
+ void (*get_rate)(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb,
+ struct rate_selection *sel);
+
+ void (*add_sta_debugfs)(void *priv, void *priv_sta,
+ struct dentry *dir);
+ void (*remove_sta_debugfs)(void *priv, void *priv_sta);
+};
+
+static inline int rate_supported(struct ieee80211_sta *sta,
+ enum ieee80211_band band,
+ int index)
+{
+ return (sta == NULL || sta->supp_rates[band] & BIT(index));
+}
+
+static inline s8
+rate_lowest_index(struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta)
+{
+ int i;
+
+ for (i = 0; i < sband->n_bitrates; i++)
+ if (rate_supported(sta, sband->band, i))
+ return i;
+
+ /* warn when we cannot find a rate. */
+ WARN_ON(1);
+
+ return 0;
+}
+
+
+int ieee80211_rate_control_register(struct rate_control_ops *ops);
+void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
+
#endif /* MAC80211_H */
sta_apply_parameters(local, sta, params);
- rate_control_rate_init(sta, local);
+ rate_control_rate_init(sta);
rcu_read_lock();
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
+ struct dentry *rcdir;
+ struct dentry *rcname;
struct dentry *frequency;
struct dentry *antenna_sel_tx;
struct dentry *antenna_sel_rx;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u16 frag, type;
__le16 fc;
+ struct ieee80211_supported_band *sband;
struct ieee80211_tx_status_rtap_hdr *rthdr;
struct ieee80211_sub_if_data *sdata;
struct net_device *prev_dev = NULL;
sta->tx_retry_count += info->status.retry_count;
}
- rate_control_tx_status(local->mdev, skb);
+ sband = local->hw.wiphy->bands[info->band];
+ rate_control_tx_status(local, sband, sta, skb);
}
rcu_read_unlock();
ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info);
}
- rate_control_rate_init(sta, local);
+ rate_control_rate_init(sta);
if (elems.wmm_param) {
set_sta_flags(sta, WLAN_STA_WME);
sta->sta.supp_rates[band] = supp_rates |
ieee80211_mandatory_rates(local, band);
- rate_control_rate_init(sta, local);
+ rate_control_rate_init(sta);
if (sta_info_insert(sta))
return NULL;
#include <linux/rtnetlink.h>
#include "rate.h"
#include "ieee80211_i.h"
+#include "debugfs.h"
struct rate_control_alg {
struct list_head list;
module_put(ops->module);
}
+#ifdef CONFIG_MAC80211_DEBUGFS
+static ssize_t rcname_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct rate_control_ref *ref = file->private_data;
+ int len = strlen(ref->ops->name);
+
+ return simple_read_from_buffer(userbuf, count, ppos,
+ ref->ops->name, len);
+}
+
+static const struct file_operations rcname_ops = {
+ .read = rcname_read,
+ .open = mac80211_open_file_generic,
+};
+#endif
+
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local)
{
+ struct dentry *debugfsdir = NULL;
struct rate_control_ref *ref;
ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
if (!ref)
goto fail_ref;
kref_init(&ref->kref);
+ ref->local = local;
ref->ops = ieee80211_rate_control_ops_get(name);
if (!ref->ops)
goto fail_ops;
- ref->priv = ref->ops->alloc(local);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ debugfsdir = debugfs_create_dir("rc", local->hw.wiphy->debugfsdir);
+ local->debugfs.rcdir = debugfsdir;
+ local->debugfs.rcname = debugfs_create_file("name", 0400, debugfsdir,
+ ref, &rcname_ops);
+#endif
+
+ ref->priv = ref->ops->alloc(&local->hw, debugfsdir);
if (!ref->priv)
goto fail_priv;
return ref;
ctrl_ref = container_of(kref, struct rate_control_ref, kref);
ctrl_ref->ops->free(ctrl_ref->priv);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ debugfs_remove(ctrl_ref->local->debugfs.rcname);
+ ctrl_ref->local->debugfs.rcname = NULL;
+ debugfs_remove(ctrl_ref->local->debugfs.rcdir);
+ ctrl_ref->local->debugfs.rcdir = NULL;
+#endif
+
ieee80211_rate_control_ops_put(ctrl_ref->ops);
kfree(ctrl_ref);
}
-void rate_control_get_rate(struct net_device *dev,
+void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
+ struct sta_info *sta, struct sk_buff *skb,
struct rate_selection *sel)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct rate_control_ref *ref = local->rate_ctrl;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
+ struct rate_control_ref *ref = sdata->local->rate_ctrl;
+ void *priv_sta = NULL;
+ struct ieee80211_sta *ista = NULL;
int i;
- rcu_read_lock();
- sta = sta_info_get(local, hdr->addr1);
-
sel->rate_idx = -1;
sel->nonerp_idx = -1;
sel->probe_idx = -1;
+ sel->max_rate_idx = sdata->max_ratectrl_rateidx;
+
+ if (sta) {
+ ista = &sta->sta;
+ priv_sta = sta->rate_ctrl_priv;
+ }
+
+ if (sta && sdata->force_unicast_rateidx > -1)
+ sel->rate_idx = sdata->force_unicast_rateidx;
+ else
+ ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel);
- ref->ops->get_rate(ref->priv, dev, sband, skb, sel);
+ if (sdata->max_ratectrl_rateidx > -1 &&
+ sel->rate_idx > sdata->max_ratectrl_rateidx)
+ sel->rate_idx = sdata->max_ratectrl_rateidx;
BUG_ON(sel->rate_idx < 0);
if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate)
break;
- if (rate_supported(sta, sband->band, i) &&
+ if (rate_supported(ista, sband->band, i) &&
!(rate->flags & IEEE80211_RATE_ERP_G))
sel->nonerp_idx = i;
}
}
-
- rcu_read_unlock();
}
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
#include "ieee80211_i.h"
#include "sta_info.h"
-/**
- * struct rate_selection - rate selection for rate control algos
- * @rate: selected transmission rate index
- * @nonerp: Non-ERP rate to use instead if ERP cannot be used
- * @probe: rate for probing (or -1)
- *
- */
-struct rate_selection {
- s8 rate_idx, nonerp_idx, probe_idx;
-};
-
-struct rate_control_ops {
- struct module *module;
- const char *name;
- void (*tx_status)(void *priv, struct net_device *dev,
- struct sk_buff *skb);
- void (*get_rate)(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *band,
- struct sk_buff *skb,
- struct rate_selection *sel);
- void (*rate_init)(void *priv, void *priv_sta,
- struct ieee80211_local *local, struct sta_info *sta);
- void (*clear)(void *priv);
-
- void *(*alloc)(struct ieee80211_local *local);
- void (*free)(void *priv);
- void *(*alloc_sta)(void *priv, gfp_t gfp);
- void (*free_sta)(void *priv, void *priv_sta);
-
- int (*add_attrs)(void *priv, struct kobject *kobj);
- void (*remove_attrs)(void *priv, struct kobject *kobj);
- void (*add_sta_debugfs)(void *priv, void *priv_sta,
- struct dentry *dir);
- void (*remove_sta_debugfs)(void *priv, void *priv_sta);
-};
-
struct rate_control_ref {
+ struct ieee80211_local *local;
struct rate_control_ops *ops;
void *priv;
struct kref kref;
};
-int ieee80211_rate_control_register(struct rate_control_ops *ops);
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
-
/* Get a reference to the rate control algorithm. If `name' is NULL, get the
* first available algorithm. */
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local);
-void rate_control_get_rate(struct net_device *dev,
+void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
+ struct sta_info *sta, struct sk_buff *skb,
struct rate_selection *sel);
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
void rate_control_put(struct rate_control_ref *ref);
-static inline void rate_control_tx_status(struct net_device *dev,
+static inline void rate_control_tx_status(struct ieee80211_local *local,
+ struct ieee80211_supported_band *sband,
+ struct sta_info *sta,
struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct rate_control_ref *ref = local->rate_ctrl;
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
- ref->ops->tx_status(ref->priv, dev, skb);
+ ref->ops->tx_status(ref->priv, sband, ista, priv_sta, skb);
}
-static inline void rate_control_rate_init(struct sta_info *sta,
- struct ieee80211_local *local)
+static inline void rate_control_rate_init(struct sta_info *sta)
{
+ struct ieee80211_local *local = sta->sdata->local;
struct rate_control_ref *ref = sta->rate_ctrl;
- ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+ ref->ops->rate_init(ref->priv, sband, ista, priv_sta);
}
}
static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
+ struct ieee80211_sta *sta,
gfp_t gfp)
{
- return ref->ops->alloc_sta(ref->priv, gfp);
+ return ref->ops->alloc_sta(ref->priv, sta, gfp);
}
-static inline void rate_control_free_sta(struct rate_control_ref *ref,
- void *priv)
+static inline void rate_control_free_sta(struct sta_info *sta)
{
- ref->ops->free_sta(ref->priv, priv);
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
+
+ ref->ops->free_sta(ref->priv, ista, priv_sta);
}
static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
#endif
}
-static inline int rate_supported(struct sta_info *sta,
- enum ieee80211_band band,
- int index)
-{
- return (sta == NULL || sta->sta.supp_rates[band] & BIT(index));
-}
-
-static inline s8
-rate_lowest_index(struct ieee80211_local *local,
- struct ieee80211_supported_band *sband,
- struct sta_info *sta)
-{
- int i;
-
- for (i = 0; i < sband->n_bitrates; i++)
- if (rate_supported(sta, sband->band, i))
- return i;
-
- /* warn when we cannot find a rate. */
- WARN_ON(1);
-
- return 0;
-}
-
-
/* functions for rate control related to a device */
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
const char *name);
* struct rc_pid_debugfs_entries - tunable parameters
*
* Algorithm parameters, tunable via debugfs.
- * @dir: the debugfs directory for a specific phy
* @target: target percentage for failed frames
* @sampling_period: error sampling interval in milliseconds
* @coeff_p: absolute value of the proportional coefficient
* ordering of rates)
*/
struct rc_pid_debugfs_entries {
- struct dentry *dir;
struct dentry *target;
struct dentry *sampling_period;
struct dentry *coeff_p;
* exhibited a worse failed frames behaviour and we'll choose the highest rate
* whose failed frames behaviour is not worse than the one of the original rate
* target. While at it, check that the new rate is valid. */
-static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
- struct sta_info *sta, int adj,
+static void rate_control_pid_adjust_rate(struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct rc_pid_sta_info *spinfo, int adj,
struct rc_pid_rateinfo *rinfo)
{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
int cur_sorted, new_sorted, probe, tmp, n_bitrates, band;
- struct rc_pid_sta_info *spinfo = (void *)sta->rate_ctrl_priv;
int cur = spinfo->txrate_idx;
- sdata = sta->sdata;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
band = sband->band;
n_bitrates = sband->n_bitrates;
}
static void rate_control_pid_sample(struct rc_pid_info *pinfo,
- struct ieee80211_local *local,
- struct sta_info *sta)
+ struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta,
+ struct rc_pid_sta_info *spinfo)
{
- struct ieee80211_sub_if_data *sdata = sta->sdata;
- struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
- struct ieee80211_supported_band *sband;
u32 pf;
s32 err_avg;
u32 err_prop;
int adj, i, j, tmp;
unsigned long period;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- spinfo = sta->rate_ctrl_priv;
-
/* In case nothing happened during the previous control interval, turn
* the sharpening factor on. */
period = (HZ * pinfo->sampling_period + 500) / 1000;
if (unlikely(spinfo->tx_num_xmit == 0))
pf = spinfo->last_pf;
else {
+ /* XXX: BAD HACK!!! */
+ struct sta_info *si = container_of(sta, struct sta_info, sta);
+
pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
- if (ieee80211_vif_is_mesh(&sdata->vif) && pf == 100)
- mesh_plink_broken(sta);
+
+ if (ieee80211_vif_is_mesh(&si->sdata->vif) && pf == 100)
+ mesh_plink_broken(si);
pf <<= RC_PID_ARITH_SHIFT;
- sta->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
+ si->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
>> RC_PID_ARITH_SHIFT;
}
/* Change rate. */
if (adj)
- rate_control_pid_adjust_rate(local, sta, adj, rinfo);
+ rate_control_pid_adjust_rate(sband, sta, spinfo, adj, rinfo);
}
-static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
+static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
struct sk_buff *skb)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
struct rc_pid_info *pinfo = priv;
- struct sta_info *sta;
- struct rc_pid_sta_info *spinfo;
+ struct rc_pid_sta_info *spinfo = priv_sta;
unsigned long period;
- struct ieee80211_supported_band *sband;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- if (!sta)
- goto unlock;
-
- spinfo = sta->rate_ctrl_priv;
-
- /* Don't update the state if we're not controlling the rate. */
- sdata = sta->sdata;
- if (sdata->force_unicast_rateidx > -1) {
- spinfo->txrate_idx = sdata->max_ratectrl_rateidx;
- goto unlock;
- }
+ if (!spinfo)
+ return;
/* Ignore all frames that were sent with a different rate than the rate
* we currently advise mac80211 to use. */
if (info->tx_rate_idx != spinfo->txrate_idx)
- goto unlock;
+ return;
spinfo->tx_num_xmit++;
if (!period)
period = 1;
if (time_after(jiffies, spinfo->last_sample + period))
- rate_control_pid_sample(pinfo, local, sta);
-
- unlock:
- rcu_read_unlock();
+ rate_control_pid_sample(pinfo, sband, sta, spinfo);
}
-static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
+static void
+rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta,
+ struct sk_buff *skb,
+ struct rate_selection *sel)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
- struct rc_pid_sta_info *spinfo;
- struct sta_info *sta;
+ struct rc_pid_sta_info *spinfo = priv_sta;
int rateidx;
u16 fc;
- rcu_read_lock();
-
- sta = sta_info_get(local, hdr->addr1);
-
/* Send management frames and broadcast/multicast data using lowest
* rate. */
fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- is_multicast_ether_addr(hdr->addr1) || !sta) {
- sel->rate_idx = rate_lowest_index(local, sband, sta);
- rcu_read_unlock();
+ if (!sta || !spinfo ||
+ (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ is_multicast_ether_addr(hdr->addr1)) {
+ sel->rate_idx = rate_lowest_index(sband, sta);
return;
}
- /* If a forced rate is in effect, select it. */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- spinfo = (struct rc_pid_sta_info *)sta->rate_ctrl_priv;
- if (sdata->force_unicast_rateidx > -1)
- spinfo->txrate_idx = sdata->force_unicast_rateidx;
-
rateidx = spinfo->txrate_idx;
if (rateidx >= sband->n_bitrates)
rateidx = sband->n_bitrates - 1;
- rcu_read_unlock();
-
sel->rate_idx = rateidx;
#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_tx_rate(
- &((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
+ rate_control_pid_event_tx_rate(&spinfo->events,
rateidx, sband->bitrates[rateidx].bitrate);
#endif
}
-static void rate_control_pid_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
+static void
+rate_control_pid_rate_init(void *priv, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *priv_sta)
{
+ struct rc_pid_sta_info *spinfo = priv_sta;
+ struct sta_info *si;
+
/* TODO: This routine should consider using RSSI from previous packets
* as we need to have IEEE 802.1X auth succeed immediately after assoc..
* Until that method is implemented, we will use the lowest supported
* rate as a workaround. */
- struct ieee80211_supported_band *sband;
- struct rc_pid_sta_info *spinfo = (void *)sta->rate_ctrl_priv;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- spinfo->txrate_idx = rate_lowest_index(local, sband, sta);
- sta->fail_avg = 0;
+ spinfo->txrate_idx = rate_lowest_index(sband, sta);
+ /* HACK */
+ si = container_of(sta, struct sta_info, sta);
+ si->fail_avg = 0;
}
-static void *rate_control_pid_alloc(struct ieee80211_local *local)
+static void *rate_control_pid_alloc(struct ieee80211_hw *hw,
+ struct dentry *debugfsdir)
{
struct rc_pid_info *pinfo;
struct rc_pid_rateinfo *rinfo;
struct rc_pid_debugfs_entries *de;
#endif
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ sband = hw->wiphy->bands[hw->conf.channel->band];
pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
if (!pinfo)
#ifdef CONFIG_MAC80211_DEBUGFS
de = &pinfo->dentries;
- de->dir = debugfs_create_dir("rc80211_pid",
- local->hw.wiphy->debugfsdir);
de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->target);
+ debugfsdir, &pinfo->target);
de->sampling_period = debugfs_create_u32("sampling_period",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sampling_period);
de->coeff_p = debugfs_create_u32("coeff_p", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_p);
+ debugfsdir, &pinfo->coeff_p);
de->coeff_i = debugfs_create_u32("coeff_i", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_i);
+ debugfsdir, &pinfo->coeff_i);
de->coeff_d = debugfs_create_u32("coeff_d", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_d);
+ debugfsdir, &pinfo->coeff_d);
de->smoothing_shift = debugfs_create_u32("smoothing_shift",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->smoothing_shift);
de->sharpen_factor = debugfs_create_u32("sharpen_factor",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sharpen_factor);
de->sharpen_duration = debugfs_create_u32("sharpen_duration",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->sharpen_duration);
de->norm_offset = debugfs_create_u32("norm_offset",
- S_IRUSR | S_IWUSR, de->dir,
+ S_IRUSR | S_IWUSR, debugfsdir,
&pinfo->norm_offset);
#endif
debugfs_remove(de->coeff_p);
debugfs_remove(de->sampling_period);
debugfs_remove(de->target);
- debugfs_remove(de->dir);
#endif
kfree(pinfo->rinfo);
{
}
-static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
+static void *rate_control_pid_alloc_sta(void *priv, struct ieee80211_sta *sta,
+ gfp_t gfp)
{
struct rc_pid_sta_info *spinfo;
return spinfo;
}
-static void rate_control_pid_free_sta(void *priv, void *priv_sta)
+static void rate_control_pid_free_sta(void *priv, struct ieee80211_sta *sta,
+ void *priv_sta)
{
- struct rc_pid_sta_info *spinfo = priv_sta;
- kfree(spinfo);
+ kfree(priv_sta);
}
static struct rate_control_ops mac80211_rcpid = {
}
/* protected by RCU */
-static struct sta_info *__sta_info_find(struct ieee80211_local *local,
- const u8 *addr)
+struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr)
{
struct sta_info *sta;
return sta;
}
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
-{
- return __sta_info_find(local, addr);
-}
-EXPORT_SYMBOL(sta_info_get);
-
struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
struct net_device *dev)
{
{
DECLARE_MAC_BUF(mbuf);
- rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
+ rate_control_free_sta(sta);
rate_control_put(sta->rate_ctrl);
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
sta->rate_ctrl = rate_control_get(local->rate_ctrl);
sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl,
- gfp);
+ &sta->sta, gfp);
if (!sta->rate_ctrl_priv) {
rate_control_put(sta->rate_ctrl);
kfree(sta);
spin_lock_irqsave(&local->sta_lock, flags);
/* check if STA exists already */
- if (__sta_info_find(local, sta->sta.addr)) {
+ if (sta_info_get(local, sta->sta.addr)) {
spin_unlock_irqrestore(&local->sta_lock, flags);
err = -EEXIST;
goto out_free;
struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
const u8 *addr)
{
- struct sta_info *sta = __sta_info_find(hw_to_local(hw), addr);
+ struct sta_info *sta = sta_info_get(hw_to_local(hw), addr);
if (!sta)
return NULL;
/*
* Get a STA info, must have be under RCU read lock.
*/
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr);
+struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr);
/*
* Get STA info by index, BROKEN!
*/
sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (likely(tx->rate_idx < 0)) {
- rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
+ rate_control_get_rate(tx->sdata, sband, tx->sta,
+ tx->skb, &rsel);
if (tx->sta)
tx->sta->last_txrate_idx = rsel.rate_idx;
tx->rate_idx = rsel.rate_idx;
skb->do_not_encrypt = 1;
info->band = band;
- rate_control_get_rate(local->mdev, sband, skb, &rsel);
+ rate_control_get_rate(sdata, sband, NULL, skb, &rsel);
if (unlikely(rsel.rate_idx < 0)) {
if (net_ratelimit()) {
projects / openwrt / staging / blogic.git / commitdiff