[PATCH ath-next v2 06/17] wifi: ath12k: move multi MSI vector flag to ath12k_dev_flags

Aaradhana Sahu aaradhana.sahu at oss.qualcomm.com
Thu Oct 15 20:21:43 PDT 2026


QCN6432 uses MSI vectors, but although it is a PCIe device, it is
attached to the WCSS Q6 processor and registered as an AHB platform
device. As a result, it does not have a valid ab_pci context while
still reusing PCI IRQ APIs.

Move ATH12K_PCI_FLAG_MULTI_MSI_VECTORS from ath12k_pci_flags to
ath12k_dev_flags so it can be used without relying on PCI-specific context.
Rename it to ATH12K_FLAG_MULTI_MSI_VECTORS accordingly.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1
Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.6-01322-QCAHKSWPL_SILICONZ-1
Tested-on: QCN6432 hw1.0 AHB WLAN.WBE.1.6-01322-QCAHKSWPL_SILICONZ-1

Signed-off-by: Aaradhana Sahu <aaradhana.sahu at oss.qualcomm.com>
---
 drivers/net/wireless/ath/ath12k/core.h |  1 +
 drivers/net/wireless/ath/ath12k/mhi.c  |  4 ++--
 drivers/net/wireless/ath/ath12k/pci.c  | 22 ++++++++++------------
 drivers/net/wireless/ath/ath12k/pci.h  |  1 -
 4 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index d87c59f68c12..eaea601ab32d 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -278,6 +278,7 @@ enum ath12k_dev_flags {
 	ATH12K_FLAG_QMI_FW_READY_COMPLETE,
 	ATH12K_FLAG_FTM_SEGMENTED,
 	ATH12K_FLAG_FIXED_MEM_REGION,
+	ATH12K_FLAG_MULTI_MSI_VECTORS,
 };
 
 struct ath12k_tx_conf {
diff --git a/drivers/net/wireless/ath/ath12k/mhi.c b/drivers/net/wireless/ath/ath12k/mhi.c
index ee87f00bc5de..56e697fbdad5 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.c
+++ b/drivers/net/wireless/ath/ath12k/mhi.c
@@ -86,7 +86,7 @@ static int ath12k_mhi_get_msi(struct ath12k_pci *ab_pci)
 
 	msi_data = base_vector;
 	for (i = 0; i < num_vectors; i++) {
-		if (test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+		if (test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 			irq[i] = ath12k_pci_get_msi_irq(ab->dev,
 							msi_data++);
 		else
@@ -248,7 +248,7 @@ int ath12k_mhi_register(struct ath12k_pci *ab_pci)
 		goto free_controller;
 	}
 
-	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (!test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		mhi_ctrl->irq_flags = IRQF_SHARED | IRQF_NOBALANCING;
 
 	mhi_ctrl->iova_start = 0;
diff --git a/drivers/net/wireless/ath/ath12k/pci.c b/drivers/net/wireless/ath/ath12k/pci.c
index 736e40492b41..e6fe891e58b1 100644
--- a/drivers/net/wireless/ath/ath12k/pci.c
+++ b/drivers/net/wireless/ath/ath12k/pci.c
@@ -341,13 +341,12 @@ static void ath12k_pci_free_irq(struct ath12k_base *ab)
 
 static void ath12k_pci_ce_irq_enable(struct ath12k_base *ab, u16 ce_id)
 {
-	struct ath12k_pci *ab_pci = ath12k_pci_priv(ab);
 	u32 irq_idx;
 
 	/* In case of one MSI vector, we handle irq enable/disable in a
 	 * uniform way since we only have one irq
 	 */
-	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (!test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		return;
 
 	irq_idx = ATH12K_MSI_IRQ_CE0_OFFSET + ce_id;
@@ -356,13 +355,12 @@ static void ath12k_pci_ce_irq_enable(struct ath12k_base *ab, u16 ce_id)
 
 static void ath12k_pci_ce_irq_disable(struct ath12k_base *ab, u16 ce_id)
 {
-	struct ath12k_pci *ab_pci = ath12k_pci_priv(ab);
 	u32 irq_idx;
 
 	/* In case of one MSI vector, we handle irq enable/disable in a
 	 * uniform way since we only have one irq
 	 */
-	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (!test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		return;
 
 	irq_idx = ATH12K_MSI_IRQ_CE0_OFFSET + ce_id;
@@ -427,13 +425,13 @@ static irqreturn_t ath12k_pci_ce_interrupt_handler(int irq, void *arg)
 
 static void ath12k_pci_ext_grp_disable(struct ath12k_ext_irq_grp *irq_grp)
 {
-	struct ath12k_pci *ab_pci = ath12k_pci_priv(irq_grp->ab);
+	struct ath12k_base *ab = irq_grp->ab;
 	int i;
 
 	/* In case of one MSI vector, we handle irq enable/disable
 	 * in a uniform way since we only have one irq
 	 */
-	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (!test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		return;
 
 	for (i = 0; i < irq_grp->num_irq; i++)
@@ -462,13 +460,13 @@ static void __ath12k_pci_ext_irq_disable(struct ath12k_base *ab)
 
 static void ath12k_pci_ext_grp_enable(struct ath12k_ext_irq_grp *irq_grp)
 {
-	struct ath12k_pci *ab_pci = ath12k_pci_priv(irq_grp->ab);
+	struct ath12k_base *ab = irq_grp->ab;
 	int i;
 
 	/* In case of one MSI vector, we handle irq enable/disable in a
 	 * uniform way since we only have one irq
 	 */
-	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (!test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		return;
 
 	for (i = 0; i < irq_grp->num_irq; i++)
@@ -626,7 +624,7 @@ static int ath12k_pci_ext_irq_config(struct ath12k_base *ab)
 static int ath12k_pci_set_irq_affinity_hint(struct ath12k_pci *ab_pci,
 					    const struct cpumask *m)
 {
-	if (test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab_pci->ab->dev_flags))
 		return 0;
 
 	return irq_set_affinity_and_hint(ab_pci->pdev->irq, m);
@@ -762,7 +760,7 @@ static int ath12k_pci_msi_alloc(struct ath12k_pci *ab_pci)
 					    PCI_IRQ_MSI);
 
 	if (num_vectors == msi_config->total_vectors) {
-		set_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags);
+		set_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags);
 		ab_pci->irq_flags = IRQF_SHARED;
 	} else {
 		num_vectors = pci_alloc_irq_vectors(ab_pci->pdev,
@@ -773,7 +771,7 @@ static int ath12k_pci_msi_alloc(struct ath12k_pci *ab_pci)
 			ret = -EINVAL;
 			goto reset_msi_config;
 		}
-		clear_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags);
+		clear_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags);
 		ab->msi.config = &msi_config_one_msi;
 		ab_pci->irq_flags = IRQF_SHARED | IRQF_NOBALANCING;
 		ath12k_dbg(ab, ATH12K_DBG_PCI, "request MSI one vector\n");
@@ -1152,7 +1150,7 @@ int ath12k_pci_start(struct ath12k_base *ab)
 
 	set_bit(ATH12K_PCI_FLAG_INIT_DONE, &ab_pci->flags);
 
-	if (test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+	if (test_bit(ATH12K_FLAG_MULTI_MSI_VECTORS, &ab->dev_flags))
 		ath12k_pci_aspm_restore(ab_pci);
 	else
 		ath12k_info(ab, "leaving PCI ASPM disabled to avoid MHI M2 problems\n");
diff --git a/drivers/net/wireless/ath/ath12k/pci.h b/drivers/net/wireless/ath/ath12k/pci.h
index 47c8760536e4..3097afb03432 100644
--- a/drivers/net/wireless/ath/ath12k/pci.h
+++ b/drivers/net/wireless/ath/ath12k/pci.h
@@ -100,7 +100,6 @@ enum ath12k_pci_flags {
 	ATH12K_PCI_FLAG_INIT_DONE,
 	ATH12K_PCI_FLAG_IS_MSI_64,
 	ATH12K_PCI_ASPM_RESTORE,
-	ATH12K_PCI_FLAG_MULTI_MSI_VECTORS,
 };
 
 struct ath12k_pci_ops {

-- 
2.34.1




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