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iwlagn: support dynamic aggregation for BT coex

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Use dynamic aggregation threshold if bt traffic load is high
to reduce the impact on aggregated frame.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-11-08 14:54:37 -08:00
parent 95a5ede3ee
commit 66e863a527
7 changed files with 23 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/iwlwifi/iwl-6000.c
View File

@ -546,6 +546,7 @@ static struct iwl_bt_params iwl6000_bt_params = {
.bt_statistics = true,
/* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */
.advanced_bt_coexist = true,
.agg_time_limit = BT_AGG_THRESHOLD_DEF,
.bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE,
.bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT,
};

6
drivers/net/wireless/iwlwifi/iwl-agn-lib.c
View File

@ -2025,7 +2025,6 @@ void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
struct iwl_bt_coex_profile_notif *coex = &pkt->u.bt_coex_profile_notif;
struct iwlagn_bt_sco_cmd sco_cmd = { .flags = 0 };
struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
u8 last_traffic_load;
IWL_DEBUG_NOTIF(priv, "BT Coex notification:\n");
IWL_DEBUG_NOTIF(priv, " status: %d\n", coex->bt_status);
@ -2034,11 +2033,10 @@ void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
coex->bt_ci_compliance);
iwlagn_print_uartmsg(priv, uart_msg);
last_traffic_load = priv->notif_bt_traffic_load;
priv->notif_bt_traffic_load = coex->bt_traffic_load;
priv->last_bt_traffic_load = priv->bt_traffic_load;
if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
if (priv->bt_status != coex->bt_status ||
last_traffic_load != coex->bt_traffic_load) {
priv->last_bt_traffic_load != coex->bt_traffic_load) {
if (coex->bt_status) {
/* BT on */
if (!priv->bt_ch_announce)

32
drivers/net/wireless/iwlwifi/iwl-agn-rs.c
View File

@ -833,17 +833,23 @@ static void rs_bt_update_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct iwl_lq_sta *lq_sta)
{
struct iwl_scale_tbl_info *tbl;
bool full_concurrent;
bool full_concurrent = priv->bt_full_concurrent;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
if (priv->bt_ci_compliance && priv->bt_ant_couple_ok)
full_concurrent = true;
else
full_concurrent = false;
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->bt_full_concurrent != full_concurrent) {
if (priv->bt_ant_couple_ok) {
/*
* Is there a need to switch between
* full concurrency and 3-wire?
*/
spin_lock_irqsave(&priv->lock, flags);
if (priv->bt_ci_compliance && priv->bt_ant_couple_ok)
full_concurrent = true;
else
full_concurrent = false;
spin_unlock_irqrestore(&priv->lock, flags);
}
if ((priv->bt_traffic_load != priv->last_bt_traffic_load) ||
(priv->bt_full_concurrent != full_concurrent)) {
priv->bt_full_concurrent = full_concurrent;
/* Update uCode's rate table. */
@ -1040,8 +1046,7 @@ done:
if (sta && sta->supp_rates[sband->band])
rs_rate_scale_perform(priv, skb, sta, lq_sta);
/* Is there a need to switch between full concurrency and 3-wire? */
if (priv->bt_ant_couple_ok)
if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist)
rs_bt_update_lq(priv, ctx, lq_sta);
}
@ -3010,10 +3015,7 @@ static void rs_fill_link_cmd(struct iwl_priv *priv,
*/
if (priv && priv->cfg->bt_params &&
priv->cfg->bt_params->agg_time_limit &&
priv->cfg->bt_params->agg_time_limit >=
LINK_QUAL_AGG_TIME_LIMIT_MIN &&
priv->cfg->bt_params->agg_time_limit <=
LINK_QUAL_AGG_TIME_LIMIT_MAX)
priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
lq_cmd->agg_params.agg_time_limit =
cpu_to_le16(priv->cfg->bt_params->agg_time_limit);
}

1
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -3837,7 +3837,6 @@ static int iwl_init_drv(struct iwl_priv *priv)
priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
priv->bt_duration = BT_DURATION_LIMIT_DEF;
priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
priv->dynamic_agg_thresh = BT_AGG_THRESHOLD_DEF;
}
/* Set the tx_power_user_lmt to the lowest power level

2
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -1469,7 +1469,7 @@ static void iwl_teardown_interface(struct iwl_priv *priv,
* both values are the same and zero.
*/
if (vif->type == NL80211_IFTYPE_ADHOC)
priv->bt_traffic_load = priv->notif_bt_traffic_load;
priv->bt_traffic_load = priv->last_bt_traffic_load;
}
void iwl_mac_remove_interface(struct ieee80211_hw *hw,

2
drivers/net/wireless/iwlwifi/iwl-debugfs.c
View File

@ -1580,7 +1580,7 @@ static ssize_t iwl_dbgfs_bt_traffic_read(struct file *file,
priv->bt_full_concurrent ? "full concurrency" : "3-wire");
pos += scnprintf(buf + pos, bufsz - pos, "BT status: %s, "
"last traffic notif: %d\n",
priv->bt_status ? "On" : "Off", priv->notif_bt_traffic_load);
priv->bt_status ? "On" : "Off", priv->last_bt_traffic_load);
pos += scnprintf(buf + pos, bufsz - pos, "ch_announcement: %d, "
"sco_active: %d, kill_ack_mask: %x, "
"kill_cts_mask: %x\n",

3
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -1471,7 +1471,7 @@ struct iwl_priv {
/* bt coex */
u8 bt_status;
u8 bt_traffic_load, notif_bt_traffic_load;
u8 bt_traffic_load, last_bt_traffic_load;
bool bt_ch_announce;
bool bt_sco_active;
bool bt_full_concurrent;
@ -1482,7 +1482,6 @@ struct iwl_priv {
u16 bt_on_thresh;
u16 bt_duration;
u16 dynamic_frag_thresh;
u16 dynamic_agg_thresh;
u8 bt_ci_compliance;
struct work_struct bt_traffic_change_work;