#include "../net/mac80211/rate.h"
-#include "iwl-4965.h"
+#include "iwl-dev.h"
+#include "iwl-sta.h"
#include "iwl-core.h"
#include "iwl-helpers.h"
#define RS_NAME "iwl-4965-rs"
-#define NUM_TRY_BEFORE_ANTENNA_TOGGLE 1
+#define NUM_TRY_BEFORE_ANT_TOGGLE 1
#define IWL_NUMBER_TRY 1
#define IWL_HT_NUMBER_TRY 3
IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX
};
+static const u8 ant_toggle_lookup[] = {
+ /*ANT_NONE -> */ ANT_NONE,
+ /*ANT_A -> */ ANT_B,
+ /*ANT_B -> */ ANT_C,
+ /*ANT_AB -> */ ANT_BC,
+ /*ANT_C -> */ ANT_A,
+ /*ANT_AC -> */ ANT_AB,
+ /*ANT_BC -> */ ANT_AC,
+ /*ANT_ABC -> */ ANT_ABC,
+};
+
/**
* struct iwl4965_rate_scale_data -- tx success history for one rate
*/
struct iwl4965_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
};
-#ifdef CONFIG_IWL4965_HT
-
struct iwl4965_traffic_load {
unsigned long time_stamp; /* age of the oldest statistics */
u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
u8 head; /* start of the circular buffer */
};
-#endif /* CONFIG_IWL4965_HT */
-
/**
* struct iwl4965_lq_sta -- driver's rate scaling private structure
*
u32 flush_timer; /* time staying in mode before new search */
u8 action_counter; /* # mode-switch actions tried */
- u8 antenna;
- u8 valid_antenna;
u8 is_green;
u8 is_dup;
enum ieee80211_band band;
struct iwl_link_quality_cmd lq;
struct iwl4965_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
-#ifdef CONFIG_IWL4965_HT
struct iwl4965_traffic_load load[TID_MAX_LOAD_COUNT];
u8 tx_agg_tid_en;
-#endif
#ifdef CONFIG_MAC80211_DEBUGFS
struct dentry *rs_sta_dbgfs_scale_table_file;
struct dentry *rs_sta_dbgfs_stats_table_file;
-#ifdef CONFIG_IWL4965_HT
struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
-#endif
u32 dbg_fixed_rate;
- struct iwl_priv *drv;
#endif
+ struct iwl_priv *drv;
};
static void rs_rate_scale_perform(struct iwl_priv *priv,
struct sta_info *sta);
static void rs_fill_link_cmd(const struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
- u32 rate_n_flags,
- struct iwl_link_quality_cmd *tbl);
+ u32 rate_n_flags);
#ifdef CONFIG_MAC80211_DEBUGFS
window->stamp = 0;
}
-#ifdef CONFIG_IWL4965_HT
+static inline u8 rs_is_valid_ant(u8 valid_antenna, u8 ant_type)
+{
+ return ((ant_type & valid_antenna) == ant_type);
+}
+
/*
* removes the old data from the statistics. All data that is older than
* TID_MAX_TIME_DIFF, will be deleted.
* increment traffic load value for tid and also remove
* any old values if passed the certain time period
*/
-static void rs_tl_add_packet(struct iwl4965_lq_sta *lq_data, u8 tid)
+static u8 rs_tl_add_packet(struct iwl4965_lq_sta *lq_data,
+ struct ieee80211_hdr *hdr)
{
u32 curr_time = jiffies_to_msecs(jiffies);
u32 time_diff;
s32 index;
struct iwl4965_traffic_load *tl = NULL;
+ __le16 fc = hdr->frame_control;
+ u8 tid;
- if (tid >= TID_MAX_LOAD_COUNT)
- return;
+ if (ieee80211_is_data_qos(fc)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & 0xf;
+ } else
+ return MAX_TID_COUNT;
tl = &lq_data->load[tid];
tl->queue_count = 1;
tl->head = 0;
tl->packet_count[0] = 1;
- return;
+ return MAX_TID_COUNT;
}
time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
if ((index + 1) > tl->queue_count)
tl->queue_count = index + 1;
+
+ return tid;
}
/*
unsigned long state;
DECLARE_MAC_BUF(mac);
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+ spin_lock_bh(&sta->lock);
state = sta->ampdu_mlme.tid_state_tx[tid];
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+ spin_unlock_bh(&sta->lock);
if (state == HT_AGG_STATE_IDLE &&
rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
}
-#endif /* CONFIG_IWLWIFI_HT */
-
static inline int get_num_of_ant_from_rate(u32 rate_n_flags)
{
return (!!(rate_n_flags & RATE_MCS_ANT_A_MSK) +
u32 rate_n_flags = 0;
if (is_legacy(tbl->lq_type)) {
- rate_n_flags = iwl4965_rates[index].plcp;
+ rate_n_flags = iwl_rates[index].plcp;
if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
rate_n_flags |= RATE_MCS_CCK_MSK;
rate_n_flags = RATE_MCS_HT_MSK;
if (is_siso(tbl->lq_type))
- rate_n_flags |= iwl4965_rates[index].plcp_siso;
+ rate_n_flags |= iwl_rates[index].plcp_siso;
else if (is_mimo2(tbl->lq_type))
- rate_n_flags |= iwl4965_rates[index].plcp_mimo2;
+ rate_n_flags |= iwl_rates[index].plcp_mimo2;
else
- rate_n_flags |= iwl4965_rates[index].plcp_mimo3;
+ rate_n_flags |= iwl_rates[index].plcp_mimo3;
} else {
IWL_ERROR("Invalid tbl->lq_type %d\n", tbl->lq_type);
}
u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags);
u8 mcs;
- *rate_idx = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
+ *rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags);
if (*rate_idx == IWL_RATE_INVALID) {
*rate_idx = -1;
}
return 0;
}
-/* FIXME:RS: need to toggle also ANT_C, and also AB,AC,BC */
-static inline void rs_toggle_antenna(u32 *rate_n_flags,
- struct iwl4965_scale_tbl_info *tbl)
+
+/* switch to another antenna/antennas and return 1 */
+/* if no other valid antenna found, return 0 */
+static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
+ struct iwl4965_scale_tbl_info *tbl)
{
- tbl->ant_type ^= ANT_AB;
- *rate_n_flags ^= (RATE_MCS_ANT_A_MSK|RATE_MCS_ANT_B_MSK);
+ u8 new_ant_type;
+
+ if (!tbl->ant_type || tbl->ant_type > ANT_ABC)
+ return 0;
+
+ if (!rs_is_valid_ant(valid_ant, tbl->ant_type))
+ return 0;
+
+ new_ant_type = ant_toggle_lookup[tbl->ant_type];
+
+ while ((new_ant_type != tbl->ant_type) &&
+ !rs_is_valid_ant(valid_ant, new_ant_type))
+ new_ant_type = ant_toggle_lookup[new_ant_type];
+
+ if (new_ant_type == tbl->ant_type)
+ return 0;
+
+ tbl->ant_type = new_ant_type;
+ *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK;
+ *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS;
+ return 1;
}
/* FIXME:RS: in 4965 we don't use greenfield at all */
-static inline u8 rs_use_green(struct iwl_priv *priv,
- struct ieee80211_conf *conf)
+/* FIXME:RS: don't use greenfield for now in TX */
+#if 0
+static inline u8 rs_use_green(struct iwl_priv *priv, struct ieee80211_conf *conf)
{
-#ifdef CONFIG_IWL4965_HT
return ((conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
priv->current_ht_config.is_green_field &&
!priv->current_ht_config.non_GF_STA_present);
-#else
+}
+#endif
+static inline u8 rs_use_green(struct iwl_priv *priv, struct ieee80211_conf *conf)
+{
return 0;
-#endif /* CONFIG_IWL4965_HT */
}
/**
* basic available rates.
*
*/
-static void rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
+static u16 rs_get_supported_rates(struct iwl4965_lq_sta *lq_sta,
struct ieee80211_hdr *hdr,
- enum iwl_table_type rate_type,
- u16 *data_rate)
+ enum iwl_table_type rate_type)
{
- if (is_legacy(rate_type))
- *data_rate = lq_sta->active_legacy_rate;
- else {
+ if (hdr && is_multicast_ether_addr(hdr->addr1) &&
+ lq_sta->active_rate_basic)
+ return lq_sta->active_rate_basic;
+
+ if (is_legacy(rate_type)) {
+ return lq_sta->active_legacy_rate;
+ } else {
if (is_siso(rate_type))
- *data_rate = lq_sta->active_siso_rate;
+ return lq_sta->active_siso_rate;
else if (is_mimo2(rate_type))
- *data_rate = lq_sta->active_mimo2_rate;
+ return lq_sta->active_mimo2_rate;
else
- *data_rate = lq_sta->active_mimo3_rate;
- }
-
- if (hdr && is_multicast_ether_addr(hdr->addr1) &&
- lq_sta->active_rate_basic) {
- *data_rate = lq_sta->active_rate_basic;
+ return lq_sta->active_mimo3_rate;
}
}
-static u16 rs_get_adjacent_rate(u8 index, u16 rate_mask, int rate_type)
+static u16 rs_get_adjacent_rate(struct iwl_priv *priv, u8 index, u16 rate_mask,
+ int rate_type)
{
u8 high = IWL_RATE_INVALID;
u8 low = IWL_RATE_INVALID;
low = index;
while (low != IWL_RATE_INVALID) {
- low = iwl4965_rates[low].prev_rs;
+ low = iwl_rates[low].prev_rs;
if (low == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << low))
high = index;
while (high != IWL_RATE_INVALID) {
- high = iwl4965_rates[high].next_rs;
+ high = iwl_rates[high].next_rs;
if (high == IWL_RATE_INVALID)
break;
if (rate_mask & (1 << high))
else
tbl->lq_type = LQ_G;
- if (num_of_ant(tbl->ant_type > 1))
+ if (num_of_ant(tbl->ant_type) > 1)
tbl->ant_type = ANT_A;/*FIXME:RS*/
tbl->is_fat = 0;
tbl->is_SGI = 0;
}
- rs_get_supported_rates(lq_sta, NULL, tbl->lq_type, &rate_mask);
+ rate_mask = rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
/* Mask with station rate restriction */
if (is_legacy(tbl->lq_type)) {
goto out;
}
- high_low = rs_get_adjacent_rate(scale_index, rate_mask, tbl->lq_type);
+ high_low = rs_get_adjacent_rate(lq_sta->drv, scale_index, rate_mask,
+ tbl->lq_type);
low = high_low & 0xff;
if (low == IWL_RATE_INVALID)
* mac80211 sends us Tx status
*/
static void rs_tx_status(void *priv_rate, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *tx_resp)
+ struct sk_buff *skb)
{
int status;
u8 retries;
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 ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl4965_rate_scale_data *window = NULL;
struct iwl4965_rate_scale_data *search_win = NULL;
u32 tx_rate;
struct iwl4965_scale_tbl_info tbl_type;
struct iwl4965_scale_tbl_info *curr_tbl, *search_tbl;
u8 active_index = 0;
- u16 fc = le16_to_cpu(hdr->frame_control);
+ __le16 fc = hdr->frame_control;
s32 tpt = 0;
IWL_DEBUG_RATE_LIMIT("get frame ack response, update rate scale window\n");
return;
/* This packet was aggregated but doesn't carry rate scale info */
- if ((tx_resp->control.flags & IEEE80211_TXCTL_AMPDU) &&
- !(tx_resp->flags & IEEE80211_TX_STATUS_AMPDU))
+ if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
+ !(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
- retries = tx_resp->retry_count;
+ retries = info->status.retry_count;
if (retries > 15)
retries = 15;
table = &lq_sta->lq;
active_index = lq_sta->active_tbl;
- lq_sta->antenna = lq_sta->valid_antenna;
-
curr_tbl = &(lq_sta->lq_info[active_index]);
search_tbl = &(lq_sta->lq_info[(1 - active_index)]);
window = (struct iwl4965_rate_scale_data *)
if (priv->band == IEEE80211_BAND_5GHZ)
rs_index -= IWL_FIRST_OFDM_RATE;
- if ((tx_resp->control.tx_rate == NULL) ||
+ if ((info->tx_rate_idx < 0) ||
(tbl_type.is_SGI ^
- !!(tx_resp->control.flags & IEEE80211_TXCTL_SHORT_GI)) ||
+ !!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) ||
(tbl_type.is_fat ^
- !!(tx_resp->control.flags & IEEE80211_TXCTL_40_MHZ_WIDTH)) ||
+ !!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) ||
(tbl_type.is_dup ^
- !!(tx_resp->control.flags & IEEE80211_TXCTL_DUP_DATA)) ||
- (tbl_type.ant_type ^ tx_resp->control.antenna_sel_tx) ||
+ !!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) ||
+ (tbl_type.ant_type ^ info->antenna_sel_tx) ||
(!!(tx_rate & RATE_MCS_HT_MSK) ^
- !!(tx_resp->control.flags & IEEE80211_TXCTL_OFDM_HT)) ||
+ !!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) ||
(!!(tx_rate & RATE_MCS_GF_MSK) ^
- !!(tx_resp->control.flags & IEEE80211_TXCTL_GREEN_FIELD)) ||
+ !!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) ||
(hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
- tx_resp->control.tx_rate->bitrate)) {
+ hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) {
IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate);
goto out;
}
rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type, &rs_index);
/* Update frame history window with "success" if Tx got ACKed ... */
- if (tx_resp->flags & IEEE80211_TX_STATUS_ACK)
- status = 1;
- else
- status = 0;
+ status = !!(info->flags & IEEE80211_TX_STAT_ACK);
/* If type matches "search" table,
* add final tx status to "search" history */
tpt = search_tbl->expected_tpt[rs_index];
else
tpt = 0;
- if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU)
+ if (info->flags & IEEE80211_TX_CTL_AMPDU)
rs_collect_tx_data(search_win, rs_index, tpt,
- tx_resp->ampdu_ack_len,
- tx_resp->ampdu_ack_map);
+ info->status.ampdu_ack_len,
+ info->status.ampdu_ack_map);
else
rs_collect_tx_data(search_win, rs_index, tpt,
1, status);
tpt = curr_tbl->expected_tpt[rs_index];
else
tpt = 0;
- if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU)
+ if (info->flags & IEEE80211_TX_CTL_AMPDU)
rs_collect_tx_data(window, rs_index, tpt,
- tx_resp->ampdu_ack_len,
- tx_resp->ampdu_ack_map);
+ info->status.ampdu_ack_len,
+ info->status.ampdu_ack_map);
else
rs_collect_tx_data(window, rs_index, tpt,
1, status);
/* If not searching for new mode, increment success/failed counter
* ... these help determine when to start searching again */
if (lq_sta->stay_in_tbl) {
- if (tx_resp->control.flags & IEEE80211_TXCTL_AMPDU) {
- lq_sta->total_success += tx_resp->ampdu_ack_map;
+ if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+ lq_sta->total_success += info->status.ampdu_ack_map;
lq_sta->total_failed +=
- (tx_resp->ampdu_ack_len - tx_resp->ampdu_ack_map);
+ (info->status.ampdu_ack_len - info->status.ampdu_ack_map);
} else {
if (status)
lq_sta->total_success++;
return;
}
-static inline u8 rs_is_ant_connected(u8 valid_antenna, u8 ant_type)
-{
- return ((ant_type & valid_antenna) == ant_type);
-}
-
-/*FIXME:RS: this function should be replaced*/
-static u8 rs_is_other_ant_connected(u8 valid_antenna, u8 ant_type)
-{
- if (ant_type == ANT_B)
- return rs_is_ant_connected(valid_antenna, ANT_A);
- else
- return rs_is_ant_connected(valid_antenna, ANT_B);
-
- return 0;
-}
-
/*
* Begin a period of staying with a selected modulation mode.
* Set "stay_in_tbl" flag to prevent any mode switches.
* These control how long we stay using same modulation mode before
* searching for a new mode.
*/
-static void rs_set_stay_in_table(u8 is_legacy,
+static void rs_set_stay_in_table(struct iwl_priv *priv, u8 is_legacy,
struct iwl4965_lq_sta *lq_sta)
{
- IWL_DEBUG_HT("we are staying in the same table\n");
+ IWL_DEBUG_RATE("we are staying in the same table\n");
lq_sta->stay_in_tbl = 1; /* only place this gets set */
if (is_legacy) {
lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
/*
* Find correct throughput table for given mode of modulation
*/
-static void rs_get_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
+static void rs_set_expected_tpt_table(struct iwl4965_lq_sta *lq_sta,
struct iwl4965_scale_tbl_info *tbl)
{
if (is_legacy(tbl->lq_type)) {
tbl->expected_tpt = expected_tpt_G;
}
-#ifdef CONFIG_IWL4965_HT
/*
* Find starting rate for new "search" high-throughput mode of modulation.
* Goal is to find lowest expected rate (under perfect conditions) that is
static s32 rs_get_best_rate(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct iwl4965_scale_tbl_info *tbl, /* "search" */
- u16 rate_mask, s8 index, s8 rate)
+ u16 rate_mask, s8 index)
{
/* "active" values */
struct iwl4965_scale_tbl_info *active_tbl =
s32 new_rate, high, low, start_hi;
u16 high_low;
+ s8 rate = index;
new_rate = high = low = start_hi = IWL_RATE_INVALID;
for (; ;) {
- high_low = rs_get_adjacent_rate(rate, rate_mask, tbl->lq_type);
+ high_low = rs_get_adjacent_rate(priv, rate, rate_mask,
+ tbl->lq_type);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
/* Higher rate not available, use the original */
} else {
- new_rate = rate;
break;
}
}
return new_rate;
}
-#endif /* CONFIG_IWL4965_HT */
-
-/*FIXME:RS:this function should be replaced*/
-static inline u8 rs_is_both_ant_supp(u8 valid_antenna)
-{
- return (rs_is_ant_connected(valid_antenna, ANT_AB));
-}
/*
* Set up search table for MIMO
*/
-#ifdef CONFIG_IWL4965_HT
static int rs_switch_to_mimo2(struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
struct ieee80211_conf *conf,
return -1;
/* Need both Tx chains/antennas to support MIMO */
- if (!rs_is_both_ant_supp(priv->hw_params.valid_tx_ant))
+ if (priv->hw_params.tx_chains_num < 2)
return -1;
- IWL_DEBUG_HT("LQ: try to switch to MIMO2\n");
+ IWL_DEBUG_RATE("LQ: try to switch to MIMO2\n");
tbl->lq_type = LQ_MIMO2;
tbl->is_dup = lq_sta->is_dup;
tbl->is_SGI = 0;
*/
- rs_get_expected_tpt_table(lq_sta, tbl);
+ rs_set_expected_tpt_table(lq_sta, tbl);
- rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
+ rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_HT("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
+ IWL_DEBUG_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_HT("Can't switch with index %d rate mask %x\n",
+ IWL_DEBUG_RATE("Can't switch with index %d rate mask %x\n",
rate, rate_mask);
return -1;
}
tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
- IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
+ IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate, is_green);
return 0;
}
-#else
-static int rs_switch_to_mimo2(struct iwl_priv *priv,
- struct iwl4965_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct sta_info *sta,
- struct iwl4965_scale_tbl_info *tbl, int index)
-{
- return -1;
-}
-#endif /*CONFIG_IWL4965_HT */
/*
* Set up search table for SISO
struct sta_info *sta,
struct iwl4965_scale_tbl_info *tbl, int index)
{
-#ifdef CONFIG_IWL4965_HT
u16 rate_mask;
u8 is_green = lq_sta->is_green;
s32 rate;
!sta->ht_info.ht_supported)
return -1;
- IWL_DEBUG_HT("LQ: try to switch to SISO\n");
+ IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
tbl->is_dup = lq_sta->is_dup;
tbl->lq_type = LQ_SISO;
if (is_green)
tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
- rs_get_expected_tpt_table(lq_sta, tbl);
- rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index, index);
+ rs_set_expected_tpt_table(lq_sta, tbl);
+ rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_HT("LQ: get best rate %d mask %X\n", rate, rate_mask);
+ IWL_DEBUG_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_HT("can not switch with index %d rate mask %x\n",
+ IWL_DEBUG_RATE("can not switch with index %d rate mask %x\n",
rate, rate_mask);
return -1;
}
tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
- IWL_DEBUG_HT("LQ: Switch to new mcs %X index is green %X\n",
+ IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate, is_green);
return 0;
-#else
- return -1;
-
-#endif /*CONFIG_IWL4965_HT */
}
/*
for (; ;) {
switch (tbl->action) {
case IWL_LEGACY_SWITCH_ANTENNA:
- IWL_DEBUG_HT("LQ Legacy toggle Antenna\n");
+ IWL_DEBUG_RATE("LQ: Legacy toggle Antenna\n");
- search_tbl->lq_type = LQ_NONE;
lq_sta->action_counter++;
/* Don't change antenna if success has been great */
- /*FIXME:RS:not sure this is really needed*/
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
- /* Don't change antenna if other one is not connected */
- if (!rs_is_other_ant_connected(valid_tx_ant,
- tbl->ant_type))
- break;
-
/* Set up search table to try other antenna */
memcpy(search_tbl, tbl, sz);
- rs_toggle_antenna(&search_tbl->current_rate,
- search_tbl);
- rs_get_expected_tpt_table(lq_sta, search_tbl);
- lq_sta->search_better_tbl = 1;
- goto out;
-
+ if (rs_toggle_antenna(valid_tx_ant,
+ &search_tbl->current_rate, search_tbl)) {
+ lq_sta->search_better_tbl = 1;
+ goto out;
+ }
+ break;
case IWL_LEGACY_SWITCH_SISO:
- IWL_DEBUG_HT("LQ: Legacy switch to SISO\n");
+ IWL_DEBUG_RATE("LQ: Legacy switch to SISO\n");
/* Set up search table to try SISO */
memcpy(search_tbl, tbl, sz);
break;
case IWL_LEGACY_SWITCH_MIMO2:
- IWL_DEBUG_HT("LQ: Legacy switch to MIMO2\n");
+ IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n");
/* Set up search table to try MIMO */
memcpy(search_tbl, tbl, sz);
lq_sta->action_counter++;
switch (tbl->action) {
case IWL_SISO_SWITCH_ANTENNA:
- IWL_DEBUG_HT("LQ: SISO toggle Antenna\n");
- /*FIXME:RS: is this really needed for SISO?*/
+ IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n");
if (window->success_ratio >= IWL_RS_GOOD_RATIO)
break;
- if (!rs_is_other_ant_connected(valid_tx_ant,
- tbl->ant_type))
- break;
memcpy(search_tbl, tbl, sz);
- rs_toggle_antenna(&search_tbl->current_rate,
- search_tbl);
- lq_sta->search_better_tbl = 1;
-
- goto out;
-
+ if (rs_toggle_antenna(valid_tx_ant,
+ &search_tbl->current_rate, search_tbl)) {
+ lq_sta->search_better_tbl = 1;
+ goto out;
+ }
+ break;
case IWL_SISO_SWITCH_MIMO2:
- IWL_DEBUG_HT("LQ: SISO switch to MIMO\n");
+ IWL_DEBUG_RATE("LQ: SISO switch to MIMO2\n");
memcpy(search_tbl, tbl, sz);
search_tbl->is_SGI = 0;
search_tbl->ant_type = ANT_AB; /*FIXME:RS*/
}
break;
case IWL_SISO_SWITCH_GI:
- IWL_DEBUG_HT("LQ: SISO toggle SGI/NGI\n");
+ if (!tbl->is_fat &&
+ !(priv->current_ht_config.sgf &
+ HT_SHORT_GI_20MHZ))
+ break;
+ if (tbl->is_fat &&
+ !(priv->current_ht_config.sgf &
+ HT_SHORT_GI_40MHZ))
+ break;
+
+ IWL_DEBUG_RATE("LQ: SISO toggle SGI/NGI\n");
memcpy(search_tbl, tbl, sz);
if (is_green) {
IWL_ERROR("SGI was set in GF+SISO\n");
}
search_tbl->is_SGI = !tbl->is_SGI;
- rs_get_expected_tpt_table(lq_sta, search_tbl);
+ rs_set_expected_tpt_table(lq_sta, search_tbl);
if (tbl->is_SGI) {
s32 tpt = lq_sta->last_tpt / 100;
if (tpt >= search_tbl->expected_tpt[index])
struct sta_info *sta,
int index)
{
- int ret;
s8 is_green = lq_sta->is_green;
struct iwl4965_scale_tbl_info *tbl =
&(lq_sta->lq_info[lq_sta->active_tbl]);
u32 sz = (sizeof(struct iwl4965_scale_tbl_info) -
(sizeof(struct iwl4965_rate_scale_data) * IWL_RATE_COUNT));
u8 start_action = tbl->action;
+ /*u8 valid_tx_ant = priv->hw_params.valid_tx_ant;*/
+ int ret;
for (;;) {
lq_sta->action_counter++;
switch (tbl->action) {
case IWL_MIMO_SWITCH_ANTENNA_A:
case IWL_MIMO_SWITCH_ANTENNA_B:
- IWL_DEBUG_HT("LQ: MIMO2 switch to SISO\n");
+ IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n");
/* Set up new search table for SISO */
memcpy(search_tbl, tbl, sz);
break;
case IWL_MIMO_SWITCH_GI:
- IWL_DEBUG_HT("LQ: MIMO toggle SGI/NGI\n");
+ if (!tbl->is_fat &&
+ !(priv->current_ht_config.sgf &
+ HT_SHORT_GI_20MHZ))
+ break;
+ if (tbl->is_fat &&
+ !(priv->current_ht_config.sgf &
+ HT_SHORT_GI_40MHZ))
+ break;
+
+ IWL_DEBUG_RATE("LQ: MIMO toggle SGI/NGI\n");
/* Set up new search table for MIMO */
memcpy(search_tbl, tbl, sz);
search_tbl->is_SGI = !tbl->is_SGI;
- rs_get_expected_tpt_table(lq_sta, search_tbl);
+ rs_set_expected_tpt_table(lq_sta, search_tbl);
/*
* If active table already uses the fastest possible
* modulation (dual stream with short guard interval),
int i;
int active_tbl;
int flush_interval_passed = 0;
+ struct iwl_priv *priv;
+ priv = lq_sta->drv;
active_tbl = lq_sta->active_tbl;
tbl = &(lq_sta->lq_info[active_tbl]);
(unsigned long)(lq_sta->flush_timer +
IWL_RATE_SCALE_FLUSH_INTVL));
- /* For now, disable the elapsed time criterion */
- flush_interval_passed = 0;
-
/*
* Check if we should allow search for new modulation mode.
* If many frames have failed or succeeded, or we've used
(lq_sta->total_success > lq_sta->max_success_limit) ||
((!lq_sta->search_better_tbl) && (lq_sta->flush_timer)
&& (flush_interval_passed))) {
- IWL_DEBUG_HT("LQ: stay is expired %d %d %d\n:",
+ IWL_DEBUG_RATE("LQ: stay is expired %d %d %d\n:",
lq_sta->total_failed,
lq_sta->total_success,
flush_interval_passed);
lq_sta->table_count_limit) {
lq_sta->table_count = 0;
- IWL_DEBUG_HT("LQ: stay in table clear win\n");
+ IWL_DEBUG_RATE("LQ: stay in table clear win\n");
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(
&(tbl->win[i]));
int high_tpt = IWL_INVALID_VALUE;
u32 fail_count;
s8 scale_action = 0;
- u16 fc, rate_mask;
+ __le16 fc;
+ u16 rate_mask;
u8 update_lq = 0;
struct iwl4965_lq_sta *lq_sta;
struct iwl4965_scale_tbl_info *tbl, *tbl1;
u8 active_tbl = 0;
u8 done_search = 0;
u16 high_low;
-#ifdef CONFIG_IWL4965_HT
+ s32 sr;
u8 tid = MAX_TID_COUNT;
- __le16 *qc;
-#endif
IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
- fc = le16_to_cpu(hdr->frame_control);
+ fc = hdr->frame_control;
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1)) {
/* Send management frames and broadcast/multicast data using
* lowest rate. */
}
lq_sta = (struct iwl4965_lq_sta *)sta->rate_ctrl_priv;
-#ifdef CONFIG_IWL4965_HT
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- tid = (u8)(le16_to_cpu(*qc) & 0xf);
- rs_tl_add_packet(lq_sta, tid);
- }
-#endif
+ tid = rs_tl_add_packet(lq_sta, hdr);
+
/*
* Select rate-scale / modulation-mode table to work with in
* the rest of this function: "search" if searching for better
tbl->lq_type);
/* rates available for this association, and for modulation mode */
- rs_get_supported_rates(lq_sta, hdr, tbl->lq_type,
- &rate_mask);
+ rate_mask = rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
IWL_DEBUG_RATE("mask 0x%04X \n", rate_mask);
if (!rate_scale_index_msk)
rate_scale_index_msk = rate_mask;
- /* If current rate is no longer supported on current association,
- * or user changed preferences for rates, find a new supported rate. */
- if (index < 0 || !((1 << index) & rate_scale_index_msk)) {
- index = IWL_INVALID_VALUE;
- update_lq = 1;
-
- /* get the highest available rate */
- for (i = 0; i <= IWL_RATE_COUNT; i++) {
- if ((1 << i) & rate_scale_index_msk)
- index = i;
- }
-
- if (index == IWL_INVALID_VALUE) {
- IWL_WARNING("Can not find a suitable rate\n");
- return;
- }
+ if (!((1 << index) & rate_scale_index_msk)) {
+ IWL_ERROR("Current Rate is not valid\n");
+ return;
}
/* Get expected throughput table and history window for current rate */
- if (!tbl->expected_tpt)
- rs_get_expected_tpt_table(lq_sta, tbl);
+ if (!tbl->expected_tpt) {
+ IWL_ERROR("tbl->expected_tpt is NULL\n");
+ return;
+ }
window = &(tbl->win[index]);
* in current association (use new rate found above).
*/
fail_count = window->counter - window->success_counter;
- if (((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
- (window->success_counter < IWL_RATE_MIN_SUCCESS_TH))
- || (tbl->expected_tpt == NULL)) {
- IWL_DEBUG_RATE("LQ: still below TH succ %d total %d "
+ if ((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
+ (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) {
+ IWL_DEBUG_RATE("LQ: still below TH. succ=%d total=%d "
"for index %d\n",
window->success_counter, window->counter, index);
* or search for a new one? */
rs_stay_in_table(lq_sta);
- /* Set up new rate table in uCode, if needed */
- if (update_lq) {
- rate = rate_n_flags_from_tbl(tbl, index, is_green);
- rs_fill_link_cmd(priv, lq_sta, rate, &lq_sta->lq);
- iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
- }
goto out;
/* Else we have enough samples; calculate estimate of
* actual average throughput */
- } else
- window->average_tpt = ((window->success_ratio *
+ } else {
+ /*FIXME:RS remove this else if we don't get this error*/
+ if (window->average_tpt != ((window->success_ratio *
+ tbl->expected_tpt[index] + 64) / 128)) {
+ IWL_ERROR("expected_tpt should have been calculated"
+ " by now\n");
+ window->average_tpt = ((window->success_ratio *
tbl->expected_tpt[index] + 64) / 128);
+ }
+ }
/* If we are searching for better modulation mode, check success. */
if (lq_sta->search_better_tbl) {
- int success_limit = IWL_RATE_SCALE_SWITCH;
/* If good success, continue using the "search" mode;
* no need to send new link quality command, since we're
* continuing to use the setup that we've been trying. */
- if ((window->success_ratio > success_limit) ||
- (window->average_tpt > lq_sta->last_tpt)) {
- if (!is_legacy(tbl->lq_type)) {
- IWL_DEBUG_HT("LQ: we are switching to HT"
- " rate suc %d current tpt %d"
- " old tpt %d\n",
- window->success_ratio,
- window->average_tpt,
- lq_sta->last_tpt);
+ if (window->average_tpt > lq_sta->last_tpt) {
+
+ IWL_DEBUG_RATE("LQ: SWITCHING TO CURRENT TABLE "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ window->success_ratio,
+ window->average_tpt,
+ lq_sta->last_tpt);
+
+ if (!is_legacy(tbl->lq_type))
lq_sta->enable_counter = 1;
- }
+
/* Swap tables; "search" becomes "active" */
lq_sta->active_tbl = active_tbl;
current_tpt = window->average_tpt;
/* Else poor success; go back to mode in "active" table */
} else {
+
+ IWL_DEBUG_RATE("LQ: GOING BACK TO THE OLD TABLE "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ window->success_ratio,
+ window->average_tpt,
+ lq_sta->last_tpt);
+
/* Nullify "search" table */
tbl->lq_type = LQ_NONE;
tbl = &(lq_sta->lq_info[active_tbl]);
/* Revert to "active" rate and throughput info */
- index = iwl4965_hwrate_to_plcp_idx(
- tbl->current_rate);
+ index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
current_tpt = lq_sta->last_tpt;
/* Need to set up a new rate table in uCode */
update_lq = 1;
- IWL_DEBUG_HT("XXY GO BACK TO OLD TABLE\n");
}
/* Either way, we've made a decision; modulation mode
/* (Else) not in search of better modulation mode, try for better
* starting rate, while staying in this mode. */
- high_low = rs_get_adjacent_rate(index, rate_scale_index_msk,
+ high_low = rs_get_adjacent_rate(priv, index, rate_scale_index_msk,
tbl->lq_type);
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
+ sr = window->success_ratio;
+
/* Collect measured throughputs for current and adjacent rates */
current_tpt = window->average_tpt;
if (low != IWL_RATE_INVALID)
if (high != IWL_RATE_INVALID)
high_tpt = tbl->win[high].average_tpt;
- /* Assume rate increase */
- scale_action = 1;
+ scale_action = 0;
/* Too many failures, decrease rate */
- if ((window->success_ratio <= IWL_RATE_DECREASE_TH) ||
- (current_tpt == 0)) {
+ if ((sr <= IWL_RATE_DECREASE_TH) || (current_tpt == 0)) {
IWL_DEBUG_RATE("decrease rate because of low success_ratio\n");
scale_action = -1;
/* No throughput measured yet for adjacent rates; try increase. */
} else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE))
- scale_action = 1;
+ (high_tpt == IWL_INVALID_VALUE)) {
+
+ if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH)
+ scale_action = 1;
+ else if (low != IWL_RATE_INVALID)
+ scale_action = -1;
+ }
/* Both adjacent throughputs are measured, but neither one has better
* throughput; we're using the best rate, don't change it! */
/* Higher adjacent rate's throughput is measured */
if (high_tpt != IWL_INVALID_VALUE) {
/* Higher rate has better throughput */
- if (high_tpt > current_tpt)
+ if (high_tpt > current_tpt &&
+ sr >= IWL_RATE_INCREASE_TH) {
scale_action = 1;
- else {
+ } else {
IWL_DEBUG_RATE
("decrease rate because of high tpt\n");
scale_action = -1;
IWL_DEBUG_RATE
("decrease rate because of low tpt\n");
scale_action = -1;
- } else
+ } else if (sr >= IWL_RATE_INCREASE_TH) {
scale_action = 1;
+ }
}
}
/* Sanity check; asked for decrease, but success rate or throughput
* has been good at old rate. Don't change it. */
- if (scale_action == -1) {
- if ((low != IWL_RATE_INVALID) &&
- ((window->success_ratio > IWL_RATE_HIGH_TH) ||
+ if ((scale_action == -1) && (low != IWL_RATE_INVALID) &&
+ ((sr > IWL_RATE_HIGH_TH) ||
(current_tpt > (100 * tbl->expected_tpt[low]))))
- scale_action = 0;
-
- /* Sanity check; asked for increase, but success rate has not been great
- * even at old rate, higher rate will be worse. Don't change it. */
- } else if ((scale_action == 1) &&
- (window->success_ratio < IWL_RATE_INCREASE_TH))
scale_action = 0;
switch (scale_action) {
break;
}
- IWL_DEBUG_HT("choose rate scale index %d action %d low %d "
+ IWL_DEBUG_RATE("choose rate scale index %d action %d low %d "
"high %d type %d\n",
index, scale_action, low, high, tbl->lq_type);
- lq_update:
+lq_update:
/* Replace uCode's rate table for the destination station. */
if (update_lq) {
rate = rate_n_flags_from_tbl(tbl, index, is_green);
- rs_fill_link_cmd(priv, lq_sta, rate, &lq_sta->lq);
+ rs_fill_link_cmd(priv, lq_sta, rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
* 2) Not just finishing up a search
* 3) Allowing a new search
*/
- if (!update_lq && !done_search && !lq_sta->stay_in_tbl) {
+ if (!update_lq && !done_search && !lq_sta->stay_in_tbl && window->counter) {
/* Save current throughput to compare with "search" throughput*/
lq_sta->last_tpt = current_tpt;
rs_rate_scale_clear_window(&(tbl->win[i]));
/* Use new "search" start rate */
- index = iwl4965_hwrate_to_plcp_idx(
- tbl->current_rate);
+ index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
- IWL_DEBUG_HT("Switch current mcs: %X index: %d\n",
+ IWL_DEBUG_RATE("Switch current mcs: %X index: %d\n",
tbl->current_rate, index);
- rs_fill_link_cmd(priv, lq_sta, tbl->current_rate,
- &lq_sta->lq);
+ rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
* before next round of mode comparisons. */
tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
if (is_legacy(tbl1->lq_type) &&
-#ifdef CONFIG_IWL4965_HT
(!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)) &&
-#endif
(lq_sta->action_counter >= 1)) {
lq_sta->action_counter = 0;
- IWL_DEBUG_HT("LQ: STAY in legacy table\n");
- rs_set_stay_in_table(1, lq_sta);
+ IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
+ rs_set_stay_in_table(priv, 1, lq_sta);
}
/* If we're in an HT mode, and all 3 mode switch actions
* mode for a while before next round of mode comparisons. */
if (lq_sta->enable_counter &&
(lq_sta->action_counter >= IWL_ACTION_LIMIT)) {
-#ifdef CONFIG_IWL4965_HT
if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
(lq_sta->tx_agg_tid_en & (1 << tid)) &&
(tid != MAX_TID_COUNT)) {
- IWL_DEBUG_HT("try to aggregate tid %d\n", tid);
+ IWL_DEBUG_RATE("try to aggregate tid %d\n", tid);
rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
}
-#endif /*CONFIG_IWL4965_HT */
lq_sta->action_counter = 0;
- rs_set_stay_in_table(0, lq_sta);
+ rs_set_stay_in_table(priv, 0, lq_sta);
}
/*
struct ieee80211_conf *conf,
struct sta_info *sta)
{
- int i;
struct iwl4965_lq_sta *lq_sta;
struct iwl4965_scale_tbl_info *tbl;
- u8 active_tbl = 0;
int rate_idx;
- u8 use_green = rs_use_green(priv, conf);
+ int i;
u32 rate;
+ u8 use_green = rs_use_green(priv, conf);
+ u8 active_tbl = 0;
+ u8 valid_tx_ant;
if (!sta || !sta->rate_ctrl_priv)
goto out;
(priv->iw_mode == IEEE80211_IF_TYPE_IBSS))
goto out;
+ valid_tx_ant = priv->hw_params.valid_tx_ant;
+
if (!lq_sta->search_better_tbl)
active_tbl = lq_sta->active_tbl;
else
i = 0;
/* FIXME:RS: This is also wrong in 4965 */
- rate = iwl4965_rates[i].plcp;
+ rate = iwl_rates[i].plcp;
rate |= RATE_MCS_ANT_B_MSK;
rate &= ~RATE_MCS_ANT_A_MSK;
tbl->ant_type = ANT_B;
rs_get_tbl_info_from_mcs(rate, priv->band, tbl, &rate_idx);
- if (!rs_is_ant_connected(priv->hw_params.valid_tx_ant, tbl->ant_type))
- rs_toggle_antenna(&rate, tbl);
+ if (!rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
+ rs_toggle_antenna(valid_tx_ant, &rate, tbl);
rate = rate_n_flags_from_tbl(tbl, rate_idx, use_green);
tbl->current_rate = rate;
- rs_get_expected_tpt_table(lq_sta, tbl);
- rs_fill_link_cmd(NULL, lq_sta, rate, &lq_sta->lq);
+ rs_set_expected_tpt_table(lq_sta, tbl);
+ rs_fill_link_cmd(NULL, lq_sta, rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
out:
return;
struct ieee80211_conf *conf = &local->hw.conf;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct sta_info *sta;
- u16 fc;
+ __le16 fc;
struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
struct iwl4965_lq_sta *lq_sta;
/* Send management frames and broadcast/multicast data using lowest
* rate. */
- fc = le16_to_cpu(hdr->frame_control);
+ fc = hdr->frame_control;
if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
!sta || !sta->rate_ctrl_priv) {
- sel->rate = rate_lowest(local, sband, sta);
+ sel->rate_idx = rate_lowest_index(local, sband, sta);
goto out;
}
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, hdr->addr1));
- sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
+ sta_id = iwl_add_station_flags(priv, hdr->addr1,
0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
done:
if ((i < 0) || (i > IWL_RATE_COUNT)) {
- sel->rate = rate_lowest(local, sband, sta);
+ sel->rate_idx = rate_lowest_index(local, sband, sta);
goto out;
}
- sel->rate = &priv->ieee_rates[i];
+ 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, gfp_t gfp)
+static void *rs_alloc_sta(void *priv_rate, gfp_t gfp)
{
struct iwl4965_lq_sta *lq_sta;
+ struct iwl_priv *priv;
int i, j;
+ priv = (struct iwl_priv *)priv_rate;
IWL_DEBUG_RATE("create station rate scale window\n");
lq_sta = kzalloc(sizeof(struct iwl4965_lq_sta), gfp);
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&(lq_sta->lq_info[j].win[i]));
- IWL_DEBUG_RATE("rate scale global init\n");
+ IWL_DEBUG_RATE("LQ: *** rate scale global init ***\n");
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
DECLARE_MAC_BUF(mac);
/* for IBSS the call are from tasklet */
- IWL_DEBUG_HT("LQ: ADD station %s\n",
+ IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, sta->addr));
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_RATE("LQ: ADD station %s\n",
print_mac(mac, sta->addr));
- sta_id = iwl4965_add_station_flags(priv, sta->addr,
+ sta_id = iwl_add_station_flags(priv, sta->addr,
0, CMD_ASYNC, NULL);
}
if ((sta_id != IWL_INVALID_STATION)) {
lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
lq_sta->active_rate_basic = priv->active_rate_basic;
lq_sta->band = priv->band;
-#ifdef CONFIG_IWL4965_HT
/*
* active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
* supp_rates[] does not; shift to convert format, force 9 MBits off.
*/
- lq_sta->active_siso_rate =
- priv->current_ht_config.supp_mcs_set[0] << 1;
- lq_sta->active_siso_rate |=
- priv->current_ht_config.supp_mcs_set[0] & 0x1;
+ lq_sta->active_siso_rate = conf->ht_conf.supp_mcs_set[0] << 1;
+ lq_sta->active_siso_rate |= conf->ht_conf.supp_mcs_set[0] & 0x1;
lq_sta->active_siso_rate &= ~((u16)0x2);
lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
/* Same here */
- lq_sta->active_mimo2_rate =
- priv->current_ht_config.supp_mcs_set[1] << 1;
- lq_sta->active_mimo2_rate |=
- priv->current_ht_config.supp_mcs_set[1] & 0x1;
+ lq_sta->active_mimo2_rate = conf->ht_conf.supp_mcs_set[1] << 1;
+ lq_sta->active_mimo2_rate |= conf->ht_conf.supp_mcs_set[1] & 0x1;
lq_sta->active_mimo2_rate &= ~((u16)0x2);
lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
- lq_sta->active_mimo3_rate =
- priv->current_ht_config.supp_mcs_set[2] << 1;
- lq_sta->active_mimo3_rate |=
- priv->current_ht_config.supp_mcs_set[2] & 0x1;
+ lq_sta->active_mimo3_rate = conf->ht_conf.supp_mcs_set[2] << 1;
+ lq_sta->active_mimo3_rate |= conf->ht_conf.supp_mcs_set[2] & 0x1;
lq_sta->active_mimo3_rate &= ~((u16)0x2);
lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
- IWL_DEBUG_HT("SISO RATE %X MIMO2 RATE %X MIMO3 RATE %X\n",
+ IWL_DEBUG_RATE("SISO-RATE=%X MIMO2-RATE=%X MIMO3-RATE=%X\n",
lq_sta->active_siso_rate,
lq_sta->active_mimo2_rate,
lq_sta->active_mimo3_rate);
+ /* These values will be overriden later */
+ lq_sta->lq.general_params.single_stream_ant_msk = ANT_A;
+ lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB;
+
/* as default allow aggregation for all tids */
lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
-#endif /*CONFIG_IWL4965_HT*/
#ifdef CONFIG_MAC80211_DEBUGFS
lq_sta->drv = priv;
#endif
static void rs_fill_link_cmd(const struct iwl_priv *priv,
struct iwl4965_lq_sta *lq_sta,
- u32 new_rate,
- struct iwl_link_quality_cmd *lq_cmd)
+ u32 new_rate)
{
+ struct iwl4965_scale_tbl_info tbl_type;
int index = 0;
int rate_idx;
int repeat_rate = 0;
- u8 ant_toggle_count = 0;
+ u8 ant_toggle_cnt = 0;
u8 use_ht_possible = 1;
- struct iwl4965_scale_tbl_info tbl_type = { 0 };
+ u8 valid_tx_ant = 0;
+ struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq;
/* Override starting rate (index 0) if needed for debug purposes */
rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
/* Interpret new_rate (rate_n_flags) */
+ memset(&tbl_type, 0, sizeof(tbl_type));
rs_get_tbl_info_from_mcs(new_rate, lq_sta->band,
&tbl_type, &rate_idx);
/* How many times should we repeat the initial rate? */
if (is_legacy(tbl_type.lq_type)) {
- ant_toggle_count = 1;
+ ant_toggle_cnt = 1;
repeat_rate = IWL_NUMBER_TRY;
- } else
+ } else {
repeat_rate = IWL_HT_NUMBER_TRY;
+ }
lq_cmd->general_params.mimo_delimiter =
is_mimo(tbl_type.lq_type) ? 1 : 0;
/* Fill 1st table entry (index 0) */
lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate);
- /*FIXME:RS*/
- if (is_mimo(tbl_type.lq_type) || (tbl_type.ant_type == ANT_A))
- lq_cmd->general_params.single_stream_ant_msk
- = LINK_QUAL_ANT_A_MSK;
- else
- lq_cmd->general_params.single_stream_ant_msk
- = LINK_QUAL_ANT_B_MSK;
+ if (num_of_ant(tbl_type.ant_type) == 1) {
+ lq_cmd->general_params.single_stream_ant_msk =
+ tbl_type.ant_type;
+ } else if (num_of_ant(tbl_type.ant_type) == 2) {
+ lq_cmd->general_params.dual_stream_ant_msk =
+ tbl_type.ant_type;
+ } /* otherwise we don't modify the existing value */
index++;
repeat_rate--;
+ if (priv)
+ valid_tx_ant = priv->hw_params.valid_tx_ant;
+
/* Fill rest of rate table */
while (index < LINK_QUAL_MAX_RETRY_NUM) {
/* Repeat initial/next rate.
* For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */
while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) {
if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_count <
- NUM_TRY_BEFORE_ANTENNA_TOGGLE)
- ant_toggle_count++;
- else if (priv && rs_is_other_ant_connected(
- priv->hw_params.valid_tx_ant,
- tbl_type.ant_type)) {
- rs_toggle_antenna(&new_rate, &tbl_type);
- ant_toggle_count = 1;
- }
- }
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (priv &&
+ rs_toggle_antenna(valid_tx_ant,
+ &new_rate, &tbl_type))
+ ant_toggle_cnt = 1;
+}
/* Override next rate if needed for debug purposes */
rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
/* How many times should we repeat the next rate? */
if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_count < NUM_TRY_BEFORE_ANTENNA_TOGGLE)
- ant_toggle_count++;
- else if (priv && rs_is_other_ant_connected(
- priv->hw_params.valid_tx_ant,
- tbl_type.ant_type)) {
- rs_toggle_antenna(&new_rate, &tbl_type);
- ant_toggle_count = 1;
- }
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (priv &&
+ rs_toggle_antenna(valid_tx_ant,
+ &new_rate, &tbl_type))
+ ant_toggle_cnt = 1;
+
repeat_rate = IWL_NUMBER_TRY;
- } else
+ } else {
repeat_rate = IWL_HT_NUMBER_TRY;
+ }
/* Don't allow HT rates after next pass.
* rs_get_lower_rate() will change type to LQ_A or LQ_G. */
repeat_rate--;
}
- lq_cmd->general_params.dual_stream_ant_msk = 3;
+ lq_cmd->agg_params.agg_frame_cnt_limit = 64;
lq_cmd->agg_params.agg_dis_start_th = 3;
lq_cmd->agg_params.agg_time_limit = cpu_to_le16(4000);
}
IWL_DEBUG_RATE("leave\n");
}
-static void rs_free_sta(void *priv, void *priv_sta)
+static void rs_free_sta(void *priv_rate, void *priv_sta)
{
struct iwl4965_lq_sta *lq_sta = priv_sta;
+ struct iwl_priv *priv;
+ priv = (struct iwl_priv *)priv_rate;
IWL_DEBUG_RATE("enter\n");
kfree(lq_sta);
IWL_DEBUG_RATE("leave\n");
static void rs_dbgfs_set_mcs(struct iwl4965_lq_sta *lq_sta,
u32 *rate_n_flags, int index)
{
+ struct iwl_priv *priv;
+
+ priv = lq_sta->drv;
if (lq_sta->dbg_fixed_rate) {
if (index < 12) {
*rate_n_flags = lq_sta->dbg_fixed_rate;
const char __user *user_buf, size_t count, loff_t *ppos)
{
struct iwl4965_lq_sta *lq_sta = file->private_data;
+ struct iwl_priv *priv;
char buf[64];
int buf_size;
u32 parsed_rate;
+ priv = lq_sta->drv;
memset(buf, 0, sizeof(buf));
buf_size = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, buf_size))
lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
if (lq_sta->dbg_fixed_rate) {
- rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate,
- &lq_sta->lq);
+ rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
iwl_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC);
}
lq_sta->rs_sta_dbgfs_stats_table_file =
debugfs_create_file("rate_stats_table", 0600, dir,
lq_sta, &rs_sta_dbgfs_stats_table_ops);
-#ifdef CONFIG_IWL4965_HT
lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
debugfs_create_u8("tx_agg_tid_enable", 0600, dir,
&lq_sta->tx_agg_tid_en);
-#endif
}
struct iwl4965_lq_sta *lq_sta = priv_sta;
debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
-#ifdef CONFIG_IWL4965_HT
debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
-#endif
}
#endif
int active = lq_sta->active_tbl;
cnt +=
- sprintf(&buf[cnt], " %2dMbs: ", iwl4965_rates[i].ieee / 2);
+ sprintf(&buf[cnt], " %2dMbs: ", iwl_rates[i].ieee / 2);
mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
samples += lq_sta->lq_info[active].win[i].counter;
good += lq_sta->lq_info[active].win[i].success_counter;
success += lq_sta->lq_info[active].win[i].success_counter *
- iwl4965_rates[i].ieee;
+ iwl_rates[i].ieee;
if (lq_sta->lq_info[active].win[i].stamp) {
int delta =
i = j;
}
- /* Display the average rate of all samples taken.
- *
- * NOTE: We multiply # of samples by 2 since the IEEE measurement
- * added from iwl4965_rates is actually 2X the rate */
+ /*
+ * Display the average rate of all samples taken.
+ * NOTE: We multiply # of samples by 2 since the IEEE measurement
+ * added from iwl_rates is actually 2X the rate.
+ */
if (samples)
cnt += sprintf(&buf[cnt],
"\nAverage rate is %3d.%02dMbs over last %4dms\n"
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff