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>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index af7e841..1248369 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -205,6 +205,7 @@
* @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 @@
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 @@
* @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 @@
bool rts, short_preamble;
u8 max_rate_idx;
u32 rate_idx_mask;
- bool ap;
+ bool bss;
};
struct rate_control_ops {
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 239c483..6fe6837 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -915,6 +915,7 @@
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;
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 33f7699..76de4f8 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -211,10 +211,20 @@
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 @@
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 @@
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;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index b392876a..e694836 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -622,7 +622,8 @@
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 @@
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;