wifi: rtw89: mac: add feature_init to initialize BA CAM V1

Add a call of feature_init() when bringing interface up. For now, the
feature is to reset BA CAM V1 that is only used by upcoming 8922A.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240108091134.67007-3-pkshih@realtek.com

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

@@ -1683,6 +1683,45 @@ int rtw89_fw_h2c_ba_cam_v1(struct rtw89_dev *rtwdev, struct rtw89_sta *rtwsta,
 	return ret;
 }
 
+int rtw89_fw_h2c_init_ba_cam_users(struct rtw89_dev *rtwdev, u8 users,
+				   u8 offset, u8 mac_idx)
+{
+	struct rtw89_h2c_ba_cam_init *h2c;
+	u32 len = sizeof(*h2c);
+	struct sk_buff *skb;
+	int ret;
+
+	skb = rtw89_fw_h2c_alloc_skb_with_hdr(rtwdev, len);
+	if (!skb) {
+		rtw89_err(rtwdev, "failed to alloc skb for h2c ba cam init\n");
+		return -ENOMEM;
+	}
+	skb_put(skb, len);
+	h2c = (struct rtw89_h2c_ba_cam_init *)skb->data;
+
+	h2c->w0 = le32_encode_bits(users, RTW89_H2C_BA_CAM_INIT_USERS_MASK) |
+		  le32_encode_bits(offset, RTW89_H2C_BA_CAM_INIT_OFFSET_MASK) |
+		  le32_encode_bits(mac_idx, RTW89_H2C_BA_CAM_INIT_BAND_SEL);
+
+	rtw89_h2c_pkt_set_hdr(rtwdev, skb, FWCMD_TYPE_H2C,
+			      H2C_CAT_MAC,
+			      H2C_CL_BA_CAM,
+			      H2C_FUNC_MAC_BA_CAM_INIT, 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_LOG_CFG_LEN 12
 int rtw89_fw_h2c_fw_log(struct rtw89_dev *rtwdev, bool enable)
 {

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

@@ -1813,6 +1813,14 @@ struct rtw89_h2c_ba_cam_v1 {
 #define RTW89_H2C_BA_CAM_V1_W1_MLD_EN BIT(10)
 #define RTW89_H2C_BA_CAM_V1_W1_ENTRY_IDX_MASK GENMASK(31, 24)
 
+struct rtw89_h2c_ba_cam_init {
+	__le32 w0;
+} __packed;
+
+#define RTW89_H2C_BA_CAM_INIT_USERS_MASK GENMASK(7, 0)
+#define RTW89_H2C_BA_CAM_INIT_OFFSET_MASK GENMASK(19, 12)
+#define RTW89_H2C_BA_CAM_INIT_BAND_SEL BIT(24)
+
 static inline void SET_LPS_PARM_MACID(void *h2c, u32 val)
 {
 	le32p_replace_bits((__le32 *)h2c, val, GENMASK(7, 0));
@@ -3708,6 +3716,7 @@ enum rtw89_fw_ofld_h2c_func {
 #define H2C_CL_BA_CAM			0xc
 #define H2C_FUNC_MAC_BA_CAM		0x0
 #define H2C_FUNC_MAC_BA_CAM_V1		0x1
+#define H2C_FUNC_MAC_BA_CAM_INIT	0x2
 
 /* CLASS 14 - MCC */
 #define H2C_CL_MCC			0xe
@@ -3919,6 +3928,8 @@ int rtw89_fw_h2c_ba_cam(struct rtw89_dev *rtwdev, struct rtw89_sta *rtwsta,
 int rtw89_fw_h2c_ba_cam_v1(struct rtw89_dev *rtwdev, struct rtw89_sta *rtwsta,
 			   bool valid, struct ieee80211_ampdu_params *params);
 void rtw89_fw_h2c_init_dynamic_ba_cam_v0_ext(struct rtw89_dev *rtwdev);
+int rtw89_fw_h2c_init_ba_cam_users(struct rtw89_dev *rtwdev, u8 users,
+				   u8 offset, u8 mac_idx);
 
 int rtw89_fw_h2c_lps_parm(struct rtw89_dev *rtwdev,
 			  struct rtw89_lps_parm *lps_param);

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

@@ -3676,6 +3676,28 @@ static int trx_init_ax(struct rtw89_dev *rtwdev)
 	return 0;
 }
 
+static int rtw89_mac_feat_init(struct rtw89_dev *rtwdev)
+{
+#define BACAM_1024BMP_OCC_ENTRY 4
+#define BACAM_MAX_RU_SUPPORT_B0_STA 1
+#define BACAM_MAX_RU_SUPPORT_B1_STA 1
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+	u8 users, offset;
+
+	if (chip->bacam_ver != RTW89_BACAM_V1)
+		return 0;
+
+	offset = 0;
+	users = BACAM_MAX_RU_SUPPORT_B0_STA;
+	rtw89_fw_h2c_init_ba_cam_users(rtwdev, users, offset, RTW89_MAC_0);
+
+	offset += users * BACAM_1024BMP_OCC_ENTRY;
+	users = BACAM_MAX_RU_SUPPORT_B1_STA;
+	rtw89_fw_h2c_init_ba_cam_users(rtwdev, users, offset, RTW89_MAC_1);
+
+	return 0;
+}
+
 static void rtw89_disable_fw_watchdog(struct rtw89_dev *rtwdev)
 {
 	enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id;
@@ -3910,6 +3932,10 @@ int rtw89_mac_init(struct rtw89_dev *rtwdev)
 	if (ret)
 		goto fail;
 
+	ret = rtw89_mac_feat_init(rtwdev);
+	if (ret)
+		goto fail;
+
 	if (rtwdev->hci.ops->mac_post_init) {
 		ret = rtwdev->hci.ops->mac_post_init(rtwdev);
 		if (ret)