netdev - [RFC] [PATCH v2 12/13] wifi: ath12k: implement QRTR endpoint ID fetching for PCI

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Message-ID: <c866d89b97c5e74a9575449324d1d152ab0fd939.1732506261.git.ionic@ionic.de>
Date: Mon, 25 Nov 2024 04:50:27 +0100
From: Mihai Moldovan <ionic@...ic.de>
To: ath11k@...ts.infradead.org,
	ath12k@...ts.infradead.org,
	Kalle Valo <kvalo@...nel.org>,
	Jeff Johnson <jjohnson@...nel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	linux-wireless@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [RFC] [PATCH v2 12/13] wifi: ath12k: implement QRTR endpoint ID fetching for PCI

QRTR endpoint ID fetching for PCIe devices will use MHI.

Signed-off-by: Mihai Moldovan <ionic@...ic.de>
---
 drivers/net/wireless/ath/ath12k/mhi.c | 22 ++++++++++++++++++++++
 drivers/net/wireless/ath/ath12k/mhi.h |  2 ++
 drivers/net/wireless/ath/ath12k/pci.c |  1 +
 3 files changed, 25 insertions(+)

diff --git a/drivers/net/wireless/ath/ath12k/mhi.c b/drivers/net/wireless/ath/ath12k/mhi.c
index 2f6d14382ed7..a6067c236c0d 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.c
+++ b/drivers/net/wireless/ath/ath12k/mhi.c
@@ -8,6 +8,8 @@
 #include <linux/pci.h>
 #include <linux/firmware.h>
 
+#include <net/qrtr.h>
+
 #include "core.h"
 #include "debug.h"
 #include "mhi.h"
@@ -654,3 +656,23 @@ void ath12k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic)
 {
 	mhi_download_rddm_image(mhi_ctrl, in_panic);
 }
+
+int ath12k_mhi_set_qrtr_endpoint_id(struct ath12k_base *ab)
+{
+	struct ath12k_pci *ab_pci = ath12k_pci_priv(ab);
+	struct ath12k_qmi *qmi = &ab->qmi;
+	int ret;
+
+	/* Pass endpoint ID up for QMI usage. */
+	ret = qrtr_endpoint_id_get_or_assign(ab_pci->mhi_ctrl,
+					     &qmi->handle.endpoint_id);
+	ath12k_dbg(ab, ATH12K_DBG_PCI,
+		   "queried mhi_ctrl QRTR endpoint ID: %u\n",
+		   qmi->handle.endpoint_id);
+	if (ret) {
+		ath12k_warn(ab, "failed to query QRTR endpoint ID: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/wireless/ath/ath12k/mhi.h b/drivers/net/wireless/ath/ath12k/mhi.h
index 7358b8477536..c4e00c1747c8 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.h
+++ b/drivers/net/wireless/ath/ath12k/mhi.h
@@ -44,4 +44,6 @@ void ath12k_mhi_clear_vector(struct ath12k_base *ab);
 void ath12k_mhi_suspend(struct ath12k_pci *ar_pci);
 void ath12k_mhi_resume(struct ath12k_pci *ar_pci);
 void ath12k_mhi_coredump(struct mhi_controller *mhi_ctrl, bool in_panic);
+
+int ath12k_mhi_set_qrtr_endpoint_id(struct ath12k_base *ab);
 #endif
diff --git a/drivers/net/wireless/ath/ath12k/pci.c b/drivers/net/wireless/ath/ath12k/pci.c
index cf907550e6a4..3d65c64d1b31 100644
--- a/drivers/net/wireless/ath/ath12k/pci.c
+++ b/drivers/net/wireless/ath/ath12k/pci.c
@@ -1514,6 +1514,7 @@ static const struct ath12k_hif_ops ath12k_pci_hif_ops = {
 #ifdef CONFIG_ATH12K_COREDUMP
 	.coredump_download = ath12k_pci_coredump_download,
 #endif
+	.set_qrtr_endpoint_id = ath12k_mhi_set_qrtr_endpoint_id,
 };
 
 static
-- 
2.45.2