Subject: [PATCH net-next v5 07/12] net: airoha: Move {cpu,fwd}_tx_packets in airoha_gdm_dev struct

From: Lorenzo Bianconi <[email-masked]>
Date: Sat, 09 May 2026 15:05:32 +0200

Since now multiple net_devices connected to different QDMA blocks can
share the same GDM port, cpu_tx_packets and fwd_tx_packets fields can
be overwritten with the value from a different QDMA block. In order to
fix the issue move cpu_tx_packets and fwd_tx_packets fields from
airoha_gdm_port struct to airoha_gdm_dev one.

Signed-off-by: Lorenzo Bianconi <[email-masked]>
---
 drivers/net/ethernet/airoha/airoha_eth.c | 16 +++++++---------
 drivers/net/ethernet/airoha/airoha_eth.h |  7 +++----
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 33a0f7b98d52..904f8da93600 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -2312,19 +2312,17 @@ static int airoha_qdma_get_tx_ets_stats(struct net_device *netdev, int channel,
 					struct tc_ets_qopt_offload *opt)
 {
 	struct airoha_gdm_dev *dev = netdev_priv(netdev);
-	struct airoha_gdm_port *port = dev->port;
+	struct airoha_qdma *qdma = dev->qdma;
 
-	u64 cpu_tx_packets = airoha_qdma_rr(dev->qdma,
-					    REG_CNTR_VAL(channel << 1));
-	u64 fwd_tx_packets = airoha_qdma_rr(dev->qdma,
+	u64 cpu_tx_packets = airoha_qdma_rr(qdma, REG_CNTR_VAL(channel << 1));
+	u64 fwd_tx_packets = airoha_qdma_rr(qdma,
 					    REG_CNTR_VAL((channel << 1) + 1));
-	u64 tx_packets = (cpu_tx_packets - port->cpu_tx_packets) +
-			 (fwd_tx_packets - port->fwd_tx_packets);
+	u64 tx_packets = (cpu_tx_packets - dev->cpu_tx_packets) +
+			 (fwd_tx_packets - dev->fwd_tx_packets);
 
 	_bstats_update(opt->stats.bstats, 0, tx_packets);
-
-	port->cpu_tx_packets = cpu_tx_packets;
-	port->fwd_tx_packets = fwd_tx_packets;
+	dev->cpu_tx_packets = cpu_tx_packets;
+	dev->fwd_tx_packets = fwd_tx_packets;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index 475f5c64bfcb..694e83bfd1e7 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -543,6 +543,9 @@ struct airoha_gdm_dev {
 	struct airoha_eth *eth;
 
 	DECLARE_BITMAP(qos_sq_bmap, AIROHA_NUM_QOS_CHANNELS);
+	/* qos stats counters */
+	u64 cpu_tx_packets;
+	u64 fwd_tx_packets;
 };
 
 struct airoha_gdm_port {
@@ -552,10 +555,6 @@ struct airoha_gdm_port {
 
 	struct airoha_hw_stats stats;
 
-	/* qos stats counters */
-	u64 cpu_tx_packets;
-	u64 fwd_tx_packets;
-
 	struct metadata_dst *dsa_meta[AIROHA_MAX_DSA_PORTS];
 };

-- 
2.54.0