wifi: rtw89: update statistics to FW for fine-tuning performance

Since firmware can't have proper statistics, driver update the
statistics periodically to firmware to assist in tuning performance.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230415034900.15679-5-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/core.c

@@ -2494,8 +2494,10 @@ static bool rtw89_traffic_stats_track(struct rtw89_dev *rtwdev)
 	bool tfc_changed;
 
 	tfc_changed = rtw89_traffic_stats_calc(rtwdev, &rtwdev->stats);
-	rtw89_for_each_rtwvif(rtwdev, rtwvif)
+	rtw89_for_each_rtwvif(rtwdev, rtwvif) {
 		rtw89_traffic_stats_calc(rtwdev, &rtwvif->stats);
+		rtw89_fw_h2c_tp_offload(rtwdev, rtwvif);
+	}
 
 	return tfc_changed;
 }

drivers/net/wireless/realtek/rtw89/fw.c

@@ -1855,6 +1855,47 @@ int rtw89_fw_h2c_rssi_offload(struct rtw89_dev *rtwdev,
 	return ret;
 }
 
+int rtw89_fw_h2c_tp_offload(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif)
+{
+	struct rtw89_traffic_stats *stats = &rtwvif->stats;
+	struct rtw89_h2c_ofld *h2c;
+	u32 len = sizeof(*h2c);
+	struct sk_buff *skb;
+	int ret;
+
+	if (rtwvif->net_type != RTW89_NET_TYPE_INFRA)
+		return -EINVAL;
+
+	skb = rtw89_fw_h2c_alloc_skb_with_hdr(rtwdev, len);
+	if (!skb) {
+		rtw89_err(rtwdev, "failed to alloc skb for h2c tp\n");
+		return -ENOMEM;
+	}
+
+	skb_put(skb, len);
+	h2c = (struct rtw89_h2c_ofld *)skb->data;
+
+	h2c->w0 = le32_encode_bits(rtwvif->mac_id, RTW89_H2C_OFLD_W0_MAC_ID) |
+		  le32_encode_bits(stats->tx_throughput, RTW89_H2C_OFLD_W0_TX_TP) |
+		  le32_encode_bits(stats->rx_throughput, RTW89_H2C_OFLD_W0_RX_TP);
+
+	rtw89_h2c_pkt_set_hdr(rtwdev, skb, FWCMD_TYPE_H2C,
+			      H2C_CAT_MAC, H2C_CL_MAC_FW_OFLD,
+			      H2C_FUNC_OFLD_TP, 0, 1, len);
+
+	ret = rtw89_h2c_tx(rtwdev, skb, false);
+	if (ret) {
+		rtw89_err(rtwdev, "failed to send h2c\n");
+		goto fail;
+	}
+
+	return 0;
+fail:
+	dev_kfree_skb_any(skb);
+
+	return ret;
+}
+
 #define H2C_RA_LEN 16
 int rtw89_fw_h2c_ra(struct rtw89_dev *rtwdev, struct rtw89_ra_info *ra, bool csi)
 {

drivers/net/wireless/realtek/rtw89/fw.h

@@ -3361,6 +3361,14 @@ struct rtw89_h2c_ofld_rssi {
 #define RTW89_H2C_OFLD_RSSI_W0_NUM GENMASK(15, 8)
 #define RTW89_H2C_OFLD_RSSI_W1_VAL GENMASK(7, 0)
 
+struct rtw89_h2c_ofld {
+	__le32 w0;
+} __packed;
+
+#define RTW89_H2C_OFLD_W0_MAC_ID GENMASK(7, 0)
+#define RTW89_H2C_OFLD_W0_TX_TP GENMASK(17, 8)
+#define RTW89_H2C_OFLD_W0_RX_TP GENMASK(27, 18)
+
 #define RTW89_FW_HDR_SIZE 32
 #define RTW89_FW_SECTION_HDR_SIZE 16
 
@@ -3499,6 +3507,7 @@ struct rtw89_fw_h2c_rf_reg_info {
 #define H2C_FUNC_PKT_DROP		0x1b
 #define H2C_FUNC_CFG_BCNFLTR		0x1e
 #define H2C_FUNC_OFLD_RSSI		0x1f
+#define H2C_FUNC_OFLD_TP		0x20
 
 /* CLASS 10 - Security CAM */
 #define H2C_CL_MAC_SEC_CAM		0xa
@@ -3605,6 +3614,7 @@ int rtw89_fw_h2c_set_bcn_fltr_cfg(struct rtw89_dev *rtwdev,
 				  bool connect);
 int rtw89_fw_h2c_rssi_offload(struct rtw89_dev *rtwdev,
 			      struct rtw89_rx_phy_ppdu *phy_ppdu);
+int rtw89_fw_h2c_tp_offload(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif);
 int rtw89_fw_h2c_ra(struct rtw89_dev *rtwdev, struct rtw89_ra_info *ra, bool csi);
 int rtw89_fw_h2c_cxdrv_init(struct rtw89_dev *rtwdev);
 int rtw89_fw_h2c_cxdrv_role(struct rtw89_dev *rtwdev);