HE: Option to disable HE ER SU in HE operation in AP mode

Add option to disable 242-tone HE ER SU PPDU reception by the AP
in HE operation IE.

Signed-off-by: Shay Bar <shay.bar@celeno.com>

hostapd/config_file.c

@@ -3515,6 +3515,8 @@ static int hostapd_config_fill(struct hostapd_config *conf,
 		conf->he_op.he_twt_responder = atoi(pos);
 	} else if (os_strcmp(buf, "he_rts_threshold") == 0) {
 		conf->he_op.he_rts_threshold = atoi(pos);
+	} else if (os_strcmp(buf, "he_er_su_disable") == 0) {
+		conf->he_op.he_er_su_disable = atoi(pos);
 	} else if (os_strcmp(buf, "he_basic_mcs_nss_set") == 0) {
 		conf->he_op.he_basic_mcs_nss_set = atoi(pos);
 	} else if (os_strcmp(buf, "he_mu_edca_qos_info_param_count") == 0) {

hostapd/hostapd.conf

@@ -841,6 +841,11 @@ wmm_ac_vo_acm=0
 # unsigned integer = duration in units of 16 us
 #he_rts_threshold=0
 
+#he_er_su_disable: Disable 242-tone HE ER SU PPDU reception by the AP
+# 0 = enable reception (default)
+# 1 = disable reception
+#he_er_su_disable=0
+
 # HE operating channel information; see matching vht_* parameters for details.
 # he_oper_centr_freq_seg0_idx field is used to indicate center frequency of 80
 # and 160 MHz bandwidth operation. In 80+80 MHz operation, it is the center

src/ap/ap_config.h

@@ -916,6 +916,7 @@ struct he_operation {
 	u8 he_twt_required;
 	u8 he_twt_responder;
 	u16 he_rts_threshold;
+	u8 he_er_su_disable;
 	u16 he_basic_mcs_nss_set;
 };
 

src/ap/ieee802_11_he.c

@@ -192,6 +192,9 @@ u8 * hostapd_eid_he_operation(struct hostapd_data *hapd, u8 *eid)
 		params |= (hapd->iface->conf->he_op.he_rts_threshold <<
 			   HE_OPERATION_RTS_THRESHOLD_OFFSET);
 
+	if (hapd->iface->conf->he_op.he_er_su_disable)
+		params |= HE_OPERATION_ER_SU_DISABLE;
+
 	if (hapd->iface->conf->he_op.he_bss_color_disabled)
 		params |= HE_OPERATION_BSS_COLOR_DISABLED;
 	if (hapd->iface->conf->he_op.he_bss_color_partial)