wifi: ath12k: extend the link capable flag

Link capability categorized as Single Link Operation (SLO) and Multi Link
Operation (MLO).

 - Intra-device SLO/MLO refers to links present within a device
 - Inter-device SLO/MLO refers to links present across multiple devices

Currently, driver uses a boolean variable to represent intra-device SLO/MLO
capability. To accommodate inter-device SLO/MLO capabilities within the
same variable, modify the existing variable name and type. Define a new
enumeration for the link capabilities to accommodate both intra-device
and inter-device scenarios. Populate the enum based on the supported
capabilities.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00188-QCAHKSWPL_SILICONZ-1
Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240403042056.1504209-2-quic_periyasa@quicinc.com

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

@@ -1232,7 +1232,7 @@ struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size,
 	ab->dev = dev;
 	ab->hif.bus = bus;
 	ab->qmi.num_radios = U8_MAX;
-	ab->slo_capable = true;
+	ab->mlo_capable_flags = ATH12K_INTRA_DEVICE_MLO_SUPPORT;
 
 	return ab;
 

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

@@ -695,6 +695,21 @@ struct ath12k_soc_dp_stats {
 	struct ath12k_soc_dp_tx_err_stats tx_err;
 };
 
+/**
+ * enum ath12k_link_capable_flags - link capable flags
+ *
+ * Single/Multi link capability information
+ *
+ * @ATH12K_INTRA_DEVICE_MLO_SUPPORT: SLO/MLO form between the radio, where all
+ *	the links (radios) present within a device.
+ * @ATH12K_INTER_DEVICE_MLO_SUPPORT: SLO/MLO form between the radio, where all
+ *	the links (radios) present across the devices.
+ */
+enum ath12k_link_capable_flags {
+	ATH12K_INTRA_DEVICE_MLO_SUPPORT	= BIT(0),
+	ATH12K_INTER_DEVICE_MLO_SUPPORT	= BIT(1),
+};
+
 /* Master structure to hold the hw data which may be used in core module */
 struct ath12k_base {
 	enum ath12k_hw_rev hw_rev;
@@ -853,10 +868,12 @@ struct ath12k_base {
 
 	const struct hal_rx_ops *hal_rx_ops;
 
-	/* slo_capable denotes if the single/multi link operation
-	 * is supported within the same chip (SoC).
+	/* mlo_capable_flags denotes the single/multi link operation
+	 * capabilities of the Device.
+	 *
+	 * See enum ath12k_link_capable_flags
 	 */
-	bool slo_capable;
+	u8 mlo_capable_flags;
 
 	/* must be last */
 	u8 drv_priv[] __aligned(sizeof(void *));

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

@@ -385,7 +385,7 @@ int ath12k_mhi_register(struct ath12k_pci *ab_pci)
 				   "failed to read board id\n");
 		} else if (board_id & OTP_VALID_DUALMAC_BOARD_ID_MASK) {
 			dualmac = true;
-			ab->slo_capable = false;
+			ab->mlo_capable_flags = 0;
 			ath12k_dbg(ab, ATH12K_DBG_BOOT,
 				   "dualmac fw selected for board id: %x\n", board_id);
 		}

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

@@ -2124,7 +2124,7 @@ static void ath12k_qmi_phy_cap_send(struct ath12k_base *ab)
 	struct qmi_txn txn;
 	int ret;
 
-	if (!ab->slo_capable)
+	if (!ab->mlo_capable_flags)
 		goto out;
 
 	ret = qmi_txn_init(&ab->qmi.handle, &txn,