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mac80211: TX legacy rate control for Beacon frames

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Use the Beacon frame specific legacy rate configuration, if specified
for AP or mesh, instead of the generic rate mask when selecting the TX
rate for Beacon frames.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20200425155713.25687-4-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jouni Malinen 2020-04-25 18:57:12 +03:00 committed by Johannes Berg
parent bedd7904e8
commit 08fad438be
4 changed files with 34 additions and 2 deletions
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26
net/mac80211/cfg.c
View file

@ -994,7 +994,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
BSS_CHANGED_TWT |
BSS_CHANGED_HE_OBSS_PD |
BSS_CHANGED_HE_BSS_COLOR;
int err;
int i, err;
int prev_beacon_int;
old = sdata_dereference(sdata->u.ap.beacon, sdata);
@ -1085,6 +1085,17 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
IEEE80211_P2P_OPPPS_ENABLE_BIT;
sdata->beacon_rate_set = false;
if (wiphy_ext_feature_isset(local->hw.wiphy,
NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sdata->beacon_rateidx_mask[i] =
params->beacon_rate.control[i].legacy;
if (sdata->beacon_rateidx_mask[i])
sdata->beacon_rate_set = true;
}
}
err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
if (err < 0) {
ieee80211_vif_release_channel(sdata);
@ -1189,6 +1200,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
ieee80211_free_keys(sdata, true);
sdata->vif.bss_conf.enable_beacon = false;
sdata->beacon_rate_set = false;
sdata->vif.bss_conf.ssid_len = 0;
clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
@ -1949,6 +1961,7 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
const u8 *old_ie;
struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
struct ieee80211_sub_if_data, u.mesh);
int i;
/* allocate information elements */
new_ie = NULL;
@ -1987,6 +2000,17 @@ static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
sdata->vif.bss_conf.dtim_period = setup->dtim_period;
sdata->beacon_rate_set = false;
if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sdata->beacon_rateidx_mask[i] =
setup->beacon_rate.control[i].legacy;
if (sdata->beacon_rateidx_mask[i])
sdata->beacon_rate_set = true;
}
}
return 0;
}

4
net/mac80211/ieee80211_i.h
View file

@ -962,6 +962,10 @@ struct ieee80211_sub_if_data {
bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
/* Beacon frame (non-MCS) rate (as a bitmap) */
u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
bool beacon_rate_set;
union {
struct ieee80211_if_ap ap;
struct ieee80211_if_wds wds;

1
net/mac80211/mesh.c
View file

@ -994,6 +994,7 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
/* stop the beacon */
ifmsh->mesh_id_len = 0;
sdata->vif.bss_conf.enable_beacon = false;
sdata->beacon_rate_set = false;
clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);

5
net/mac80211/tx.c
View file

@ -4883,7 +4883,10 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
txrc.bss_conf = &sdata->vif.bss_conf;
txrc.skb = skb;
txrc.reported_rate.idx = -1;
txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
if (sdata->beacon_rate_set && sdata->beacon_rateidx_mask[band])
txrc.rate_idx_mask = sdata->beacon_rateidx_mask[band];
else
txrc.rate_idx_mask = sdata->rc_rateidx_mask[band];
txrc.bss = true;
rate_control_get_rate(sdata, NULL, &txrc);