From 962c17dd287887aa87a6f30d64239d7e1e4e05fa Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Wed, 27 May 2026 12:21:19 +0200
Subject: [PATCH 5/6] net: airoha: Move {cpu,fwd}_tx_packets in airoha_gdm_dev
 struct

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.

Tested-by: Xuegang Lu <xuegang.lu@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260527-airoha-eth-multi-serdes-preliminary-v1-5-ec6ed73ef7fc@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/airoha/airoha_eth.c | 16 +++++++---------
 drivers/net/ethernet/airoha/airoha_eth.h |  7 +++----
 2 files changed, 10 insertions(+), 13 deletions(-)

--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -2318,19 +2318,17 @@ static int airoha_qdma_get_tx_ets_stats(
 					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;
 }
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -544,6 +544,9 @@ 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 {
@@ -553,10 +556,6 @@ 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];
 };
 
