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mac80211: add support for setting the ad-hoc multicast rate 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2010-11-11 15:07:23 +01:00 committed by John W. Linville
parent 885a46d0f7
commit 8f0729b16a
4 changed files with 23 additions and 8 deletions
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6
include/net/mac80211.h
View File

@ -205,6 +205,7 @@ enum ieee80211_bss_change {
* @basic_rates: bitmap of basic rates, each bit stands for an
* index into the rate table configured by the driver in
* the current band.
* @mcast_rate: multicast rate for AP and Ad-Hoc (in 100 kbps)
* @bssid: The BSSID for this BSS
* @enable_beacon: whether beaconing should be enabled or not
* @channel_type: Channel type for this BSS -- the hardware might be
@ -244,6 +245,7 @@ struct ieee80211_bss_conf {
u16 assoc_capability;
u64 timestamp;
u32 basic_rates;
u32 mcast_rate;
u16 ht_operation_mode;
s32 cqm_rssi_thold;
u32 cqm_rssi_hyst;
@ -2663,7 +2665,7 @@ enum rate_control_changed {
* @rate_idx_mask: user-requested rate mask (not MCS for now)
* @skb: the skb that will be transmitted, the control information in it needs
* to be filled in
* @ap: whether this frame is sent out in AP mode
* @bss: whether this frame is sent out in AP or IBSS mode
*/
struct ieee80211_tx_rate_control {
struct ieee80211_hw *hw;
@ -2674,7 +2676,7 @@ struct ieee80211_tx_rate_control {
bool rts, short_preamble;
u8 max_rate_idx;
u32 rate_idx_mask;
bool ap;
bool bss;
};
struct rate_control_ops {

1
net/mac80211/ibss.c
View File

@ -915,6 +915,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.privacy = params->privacy;
sdata->u.ibss.basic_rates = params->basic_rates;
sdata->vif.bss_conf.mcast_rate = params->mcast_rate;
sdata->vif.bss_conf.beacon_int = params->beacon_interval;

19
net/mac80211/rate.c
View File

@ -211,10 +211,20 @@ static bool rc_no_data_or_no_ack(struct ieee80211_tx_rate_control *txrc)
return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc);
}
static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u32 mcast_rate,
struct ieee80211_supported_band *sband)
{
u8 i;
if (mcast_rate) {
for (i = 0; i < sband->n_bitrates; i++) {
if (sband->bitrates[i].bitrate == mcast_rate) {
*idx = i;
return;
}
}
}
if (basic_rates == 0)
return; /* assume basic rates unknown and accept rate */
if (*idx < 0)
@ -222,7 +232,7 @@ static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u8 max_rate_idx)
if (basic_rates & (1 << *idx))
return; /* selected rate is a basic rate */
for (i = *idx + 1; i <= max_rate_idx; i++) {
for (i = *idx + 1; i <= sband->n_bitrates; i++) {
if (basic_rates & (1 << i)) {
*idx = i;
return;
@ -243,10 +253,11 @@ bool rate_control_send_low(struct ieee80211_sta *sta,
info->control.rates[0].count =
(info->flags & IEEE80211_TX_CTL_NO_ACK) ?
1 : txrc->hw->max_rate_tries;
if (!sta && txrc->ap)
if (!sta && txrc->bss)
rc_send_low_broadcast(&info->control.rates[0].idx,
txrc->bss_conf->basic_rates,
txrc->sband->n_bitrates);
txrc->bss_conf->mcast_rate,
txrc->sband);
return true;
}
return false;

5
net/mac80211/tx.c
View File

@ -622,7 +622,8 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
txrc.ap = tx->sdata->vif.type == NL80211_IFTYPE_AP;
txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||
tx->sdata->vif.type == NL80211_IFTYPE_ADHOC);
/* set up RTS protection if desired */
if (len > tx->local->hw.wiphy->rts_threshold) {
@ -2308,7 +2309,7 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
txrc.max_rate_idx = -1;
else
txrc.max_rate_idx = fls(txrc.rate_idx_mask) - 1;
txrc.ap = true;
txrc.bss = true;
rate_control_get_rate(sdata, NULL, &txrc);
info->control.vif = vif;