wifi: ath12k: add EMA beacon support

Add new function ath12k_mac_setup_bcn_tmpl_ema() which retrieves
a list of EMA (Enhanced Multi-BSSID Advertisements) beacon templates
from mac80211 and sends all to firmware. Add support to send EMA
configurations to firmware by adding a new parameter 'ema_params' in
struct wmi_bcn_tmpl_cmd.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Signed-off-by: Aloka Dixit <quic_alokad@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240508202912.11902-9-quic_alokad@quicinc.com

drivers/net/wireless/ath/ath12k/mac.c

@@ -1391,6 +1391,56 @@ static void ath12k_mac_set_arvif_ies(struct ath12k_vif *arvif, struct sk_buff *b
 	}
 }
 
+static int ath12k_mac_setup_bcn_tmpl_ema(struct ath12k_vif *arvif)
+{
+	struct ieee80211_bss_conf *bss_conf = &arvif->vif->bss_conf;
+	struct ath12k_wmi_bcn_tmpl_ema_arg ema_args;
+	struct ieee80211_ema_beacons *beacons;
+	struct ath12k_vif *tx_arvif;
+	bool nontx_profile_found = false;
+	int ret = 0;
+	u8 i;
+
+	tx_arvif = ath12k_vif_to_arvif(arvif->vif->mbssid_tx_vif);
+	beacons = ieee80211_beacon_get_template_ema_list(ath12k_ar_to_hw(tx_arvif->ar),
+							 tx_arvif->vif, 0);
+	if (!beacons || !beacons->cnt) {
+		ath12k_warn(arvif->ar->ab,
+			    "failed to get ema beacon templates from mac80211\n");
+		return -EPERM;
+	}
+
+	if (tx_arvif == arvif)
+		ath12k_mac_set_arvif_ies(arvif, beacons->bcn[0].skb, 0, NULL);
+
+	for (i = 0; i < beacons->cnt; i++) {
+		if (tx_arvif != arvif && !nontx_profile_found)
+			ath12k_mac_set_arvif_ies(arvif, beacons->bcn[i].skb,
+						 bss_conf->bssid_index,
+						 &nontx_profile_found);
+
+		ema_args.bcn_cnt = beacons->cnt;
+		ema_args.bcn_index = i;
+		ret = ath12k_wmi_bcn_tmpl(tx_arvif->ar, tx_arvif->vdev_id,
+					  &beacons->bcn[i].offs,
+					  beacons->bcn[i].skb, &ema_args);
+		if (ret) {
+			ath12k_warn(tx_arvif->ar->ab,
+				    "failed to set ema beacon template id %i error %d\n",
+				    i, ret);
+			break;
+		}
+	}
+
+	if (tx_arvif != arvif && !nontx_profile_found)
+		ath12k_warn(arvif->ar->ab,
+			    "nontransmitted bssid index %u not found in beacon template\n",
+			    bss_conf->bssid_index);
+
+	ieee80211_beacon_free_ema_list(beacons);
+	return ret;
+}
+
 static int ath12k_mac_setup_bcn_tmpl(struct ath12k_vif *arvif)
 {
 	struct ath12k_vif *tx_arvif = arvif;
@@ -1409,6 +1459,9 @@ static int ath12k_mac_setup_bcn_tmpl(struct ath12k_vif *arvif)
 		tx_arvif = ath12k_vif_to_arvif(vif->mbssid_tx_vif);
 		if (tx_arvif != arvif && arvif->is_up)
 			return 0;
+
+		if (vif->bss_conf.ema_ap)
+			return ath12k_mac_setup_bcn_tmpl_ema(arvif);
 	}
 
 	bcn = ieee80211_beacon_get_template(ath12k_ar_to_hw(tx_arvif->ar), tx_arvif->vif,
@@ -1452,7 +1505,7 @@ static int ath12k_mac_setup_bcn_tmpl(struct ath12k_vif *arvif)
 		}
 	}
 
-	ret = ath12k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn);
+	ret = ath12k_wmi_bcn_tmpl(ar, arvif->vdev_id, &offs, bcn, NULL);
 
 	if (ret)
 		ath12k_warn(ab, "failed to submit beacon template command: %d\n",

drivers/net/wireless/ath/ath12k/wmi.c

@@ -1788,13 +1788,15 @@ int ath12k_wmi_p2p_go_bcn_ie(struct ath12k *ar, u32 vdev_id,
 
 int ath12k_wmi_bcn_tmpl(struct ath12k *ar, u32 vdev_id,
 			struct ieee80211_mutable_offsets *offs,
-			struct sk_buff *bcn)
+			struct sk_buff *bcn,
+			struct ath12k_wmi_bcn_tmpl_ema_arg *ema_args)
 {
 	struct ath12k_wmi_pdev *wmi = ar->wmi;
 	struct wmi_bcn_tmpl_cmd *cmd;
 	struct ath12k_wmi_bcn_prb_info_params *bcn_prb_info;
 	struct wmi_tlv *tlv;
 	struct sk_buff *skb;
+	u32 ema_params = 0;
 	void *ptr;
 	int ret, len;
 	size_t aligned_len = roundup(bcn->len, 4);
@@ -1814,6 +1816,15 @@ int ath12k_wmi_bcn_tmpl(struct ath12k *ar, u32 vdev_id,
 	cmd->ext_csa_switch_count_offset = cpu_to_le32(offs->cntdwn_counter_offs[1]);
 	cmd->buf_len = cpu_to_le32(bcn->len);
 	cmd->mbssid_ie_offset = cpu_to_le32(offs->mbssid_off);
+	if (ema_args) {
+		u32p_replace_bits(&ema_params, ema_args->bcn_cnt, WMI_EMA_BEACON_CNT);
+		u32p_replace_bits(&ema_params, ema_args->bcn_index, WMI_EMA_BEACON_IDX);
+		if (ema_args->bcn_index == 0)
+			u32p_replace_bits(&ema_params, 1, WMI_EMA_BEACON_FIRST);
+		if (ema_args->bcn_index + 1 == ema_args->bcn_cnt)
+			u32p_replace_bits(&ema_params, 1, WMI_EMA_BEACON_LAST);
+		cmd->ema_params = cpu_to_le32(ema_params);
+	}
 
 	ptr = skb->data + sizeof(*cmd);
 

drivers/net/wireless/ath/ath12k/wmi.h

@@ -3533,6 +3533,16 @@ struct ath12k_wmi_p2p_noa_info {
 
 #define WMI_BEACON_TX_BUFFER_SIZE	512
 
+#define WMI_EMA_BEACON_CNT      GENMASK(7, 0)
+#define WMI_EMA_BEACON_IDX      GENMASK(15, 8)
+#define WMI_EMA_BEACON_FIRST    GENMASK(23, 16)
+#define WMI_EMA_BEACON_LAST     GENMASK(31, 24)
+
+struct ath12k_wmi_bcn_tmpl_ema_arg {
+	u8 bcn_cnt;
+	u8 bcn_index;
+};
+
 struct wmi_bcn_tmpl_cmd {
 	__le32 tlv_header;
 	__le32 vdev_id;
@@ -3543,6 +3553,11 @@ struct wmi_bcn_tmpl_cmd {
 	__le32 csa_event_bitmap;
 	__le32 mbssid_ie_offset;
 	__le32 esp_ie_offset;
+	__le32 csc_switch_count_offset;
+	__le32 csc_event_bitmap;
+	__le32 mu_edca_ie_offset;
+	__le32 feature_enable_bitmap;
+	__le32 ema_params;
 } __packed;
 
 struct wmi_p2p_go_set_beacon_ie_cmd {
@@ -4900,7 +4915,8 @@ int ath12k_wmi_p2p_go_bcn_ie(struct ath12k *ar, u32 vdev_id,
 			     const u8 *p2p_ie);
 int ath12k_wmi_bcn_tmpl(struct ath12k *ar, u32 vdev_id,
 			struct ieee80211_mutable_offsets *offs,
-			struct sk_buff *bcn);
+			struct sk_buff *bcn,
+			struct ath12k_wmi_bcn_tmpl_ema_arg *ema_args);
 int ath12k_wmi_vdev_down(struct ath12k *ar, u8 vdev_id);
 int ath12k_wmi_vdev_up(struct ath12k *ar, struct ath12k_wmi_vdev_up_params *params);
 int ath12k_wmi_vdev_stop(struct ath12k *ar, u8 vdev_id);