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From: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
To: <ath12k@lists.infradead.org>
CC: <linux-wireless@vger.kernel.org>,
        Karthikeyan Periyasamy
	<quic_periyasa@quicinc.com>
Subject: [PATCH v2 3/4] wifi: ath12k: Introduce device index
Date: Tue, 30 Apr 2024 22:28:10 +0530
Message-ID: <20240430165811.1377182-4-quic_periyasa@quicinc.com>
In-Reply-To: <20240430165811.1377182-1-quic_periyasa@quicinc.com>
References: <20240430165811.1377182-1-quic_periyasa@quicinc.com>
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Introduce a device index parameter in the ath12k_base structure. This
value is used as unique identifier for devices involved in Inter-device
MLO. It is also used to configure the MLO parameter within the QMI host
capability send request. While currently set to zero, future logic will
be added for inter device support to populate this parameter with
non-zero values.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1

Signed-off-by: Karthikeyan Periyasamy <quic_periyasa@quicinc.com>
---
 drivers/net/wireless/ath/ath12k/core.c | 10 ++++++++++
 drivers/net/wireless/ath/ath12k/core.h |  1 +
 drivers/net/wireless/ath/ath12k/qmi.c  |  4 ++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c
index 6663f4e1792d..1076efd35bcb 100644
--- a/drivers/net/wireless/ath/ath12k/core.c
+++ b/drivers/net/wireless/ath/ath12k/core.c
@@ -1262,6 +1262,16 @@ struct ath12k_base *ath12k_core_alloc(struct device *dev, size_t priv_size,
 	ab->qmi.num_radios = U8_MAX;
 	ab->mlo_capable_flags = ATH12K_INTRA_DEVICE_MLO_SUPPORT;
 
+	/* Device index used to identify the devices in a group.
+	 *
+	 * In Intra-device MLO, only one device present in a group,
+	 * so it is always zero.
+	 *
+	 * In Inter-device MLO, Multiple device present in a group,
+	 * expect non-zero value.
+	 */
+	ab->device_id = 0;
+
 	return ab;
 
 err_free_wq:
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 47dde4401210..d10d74e3a6d3 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -747,6 +747,7 @@ struct ath12k_base {
 	struct ath12k_qmi qmi;
 	struct ath12k_wmi_base wmi_ab;
 	struct completion fw_ready;
+	u8 device_id;
 	int num_radios;
 	/* HW channel counters frequency value in hertz common to all MACs */
 	u32 cc_freq_hz;
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index 5484112859a6..3bb730326a02 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -2041,7 +2041,7 @@ static void ath12k_host_cap_parse_mlo(struct ath12k_base *ab,
 	req->mlo_capable_valid = 1;
 	req->mlo_capable = 1;
 	req->mlo_chip_id_valid = 1;
-	req->mlo_chip_id = 0;
+	req->mlo_chip_id = ab->device_id;
 	req->mlo_group_id_valid = 1;
 	req->mlo_group_id = 0;
 	req->max_mlo_peer_valid = 1;
@@ -2053,7 +2053,7 @@ static void ath12k_host_cap_parse_mlo(struct ath12k_base *ab,
 	req->mlo_num_chips = 1;
 
 	info = &req->mlo_chip_info[0];
-	info->chip_id = 0;
+	info->chip_id = ab->device_id;
 	info->num_local_links = ab->qmi.num_radios;
 
 	for (i = 0; i < info->num_local_links; i++) {
-- 
2.34.1