@@ -2448,6 +2448,13 @@ ieee80211_he_spr_size(const u8 *he_spr_ie)
#define S1G_OPER_CH_WIDTH_PRIMARY_1MHZ BIT(0)
#define S1G_OPER_CH_WIDTH_OPER GENMASK(4, 1)
+
+#define LISTEN_INT_USF GENMASK(15, 14)
+#define LISTEN_INT_UI GENMASK(13, 0)
+
+#define IEEE80211_MAX_USF FIELD_MAX(LISTEN_INT_USF)
+#define IEEE80211_MAX_UI FIELD_MAX(LISTEN_INT_UI)
+
/* Authentication algorithms */
#define WLAN_AUTH_OPEN 0
#define WLAN_AUTH_SHARED_KEY 1
@@ -2300,6 +2300,7 @@ void ieee80211_tdls_chsw_work(struct work_struct *wk);
void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
const u8 *peer, u16 reason);
const char *ieee80211_get_reason_code_string(u16 reason_code);
+u16 ieee80211_encode_usf(int val);
extern const struct ethtool_ops ieee80211_ethtool_ops;
@@ -696,6 +696,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_channel *chan;
u32 rates = 0;
+ __le16 listen_int;
struct element *ext_capa = NULL;
/* we know it's writable, cast away the const */
@@ -784,13 +785,15 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, assoc_data->bss->bssid, ETH_ALEN);
+ listen_int = cpu_to_le16(sband->band == NL80211_BAND_S1GHZ ?
+ ieee80211_encode_usf(local->hw.conf.listen_interval) :
+ local->hw.conf.listen_interval);
if (!is_zero_ether_addr(assoc_data->prev_bssid)) {
skb_put(skb, 10);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_REASSOC_REQ);
mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval =
- cpu_to_le16(local->hw.conf.listen_interval);
+ mgmt->u.reassoc_req.listen_interval = listen_int;
memcpy(mgmt->u.reassoc_req.current_ap, assoc_data->prev_bssid,
ETH_ALEN);
} else {
@@ -798,8 +801,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_ASSOC_REQ);
mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.assoc_req.listen_interval =
- cpu_to_le16(local->hw.conf.listen_interval);
+ mgmt->u.assoc_req.listen_interval = listen_int;
}
/* SSID */
@@ -33,6 +33,8 @@
#include "led.h"
#include "wep.h"
+static const int listen_int_usf[] = { 1, 10, 1000, 10000 };
+
/* privid for wiphys to determine whether they belong to us or not */
const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid;
@@ -4385,3 +4387,23 @@ const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = {
IEEE80211_WMM_IE_STA_QOSINFO_AC_BE,
IEEE80211_WMM_IE_STA_QOSINFO_AC_BK
};
+
+u16 ieee80211_encode_usf(int listen_interval)
+{
+ u16 ui, usf = 0;
+
+ /* find greatest USF */
+ while (usf < IEEE80211_MAX_USF) {
+ if (listen_interval % listen_int_usf[usf + 1])
+ break;
+ usf += 1;
+ }
+ ui = listen_interval / listen_int_usf[usf];
+
+ /* error if there is a remainder. Should've been checked by user */
+ WARN_ON_ONCE(ui > IEEE80211_MAX_UI);
+ listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) |
+ FIELD_PREP(LISTEN_INT_UI, ui);
+
+ return (u16) listen_interval;
+}
S1G allows listen interval up to 2^14 * 10000 beacon intervals. In order to do this listen interval needs a scaling factor applied to the lower 14 bits. Calculate this and properly encode the listen interval for S1G STAs. See IEEE802.11ah-2016 Table 9-44a for reference. Signed-off-by: Thomas Pedersen <thomas@adapt-ip.com> Reported-by: kernel test robot <lkp@intel.com> --- v4: - move listen_int_usf[] into util.c (Johannes) - fix __le16 return type (kernel test robot) --- include/linux/ieee80211.h | 7 +++++++ net/mac80211/ieee80211_i.h | 1 + net/mac80211/mlme.c | 10 ++++++---- net/mac80211/util.c | 22 ++++++++++++++++++++++ 4 files changed, 36 insertions(+), 4 deletions(-)