net: airoha: Rely on net_device pointer in ETS callbacks

Remove airoha_gdm_port dependency in ETS tc callback signatures and rely
on net_device pointer instead. Please note this patch does not introduce
any logical change and it is a preliminary patch in order to support
multiple net_devices connected to the same GDM3 or GDM4 port via an
external hw arbiter.

Tested-by: Xuegang Lu <xuegang.lu@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260412-airoha-multi-serdes-preliminary-patch-v1-3-08d5b670ca8f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 14 insertions, 16 deletions

diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index c2b5fcffce82..d426dc173d99 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -2138,10 +2138,11 @@ airoha_ethtool_get_rmon_stats(struct net_device *dev,
 	} while (u64_stats_fetch_retry(&port->stats.syncp, start));
 }
 
-static int airoha_qdma_set_chan_tx_sched(struct airoha_gdm_port *port,
+static int airoha_qdma_set_chan_tx_sched(struct net_device *dev,
 					 int channel, enum tx_sched_mode mode,
 					 const u16 *weights, u8 n_weights)
 {
+	struct airoha_gdm_port *port = netdev_priv(dev);
 	int i;
 
 	for (i = 0; i < AIROHA_NUM_TX_RING; i++)
@@ -2173,17 +2174,15 @@ static int airoha_qdma_set_chan_tx_sched(struct airoha_gdm_port *port,
 	return 0;
 }
 
-static int airoha_qdma_set_tx_prio_sched(struct airoha_gdm_port *port,
-					 int channel)
+static int airoha_qdma_set_tx_prio_sched(struct net_device *dev, int channel)
 {
 	static const u16 w[AIROHA_NUM_QOS_QUEUES] = {};
 
-	return airoha_qdma_set_chan_tx_sched(port, channel, TC_SCH_SP, w,
+	return airoha_qdma_set_chan_tx_sched(dev, channel, TC_SCH_SP, w,
 					     ARRAY_SIZE(w));
 }
 
-static int airoha_qdma_set_tx_ets_sched(struct airoha_gdm_port *port,
-					int channel,
+static int airoha_qdma_set_tx_ets_sched(struct net_device *dev, int channel,
 					struct tc_ets_qopt_offload *opt)
 {
 	struct tc_ets_qopt_offload_replace_params *p = &opt->replace_params;
@@ -2224,20 +2223,21 @@ static int airoha_qdma_set_tx_ets_sched(struct airoha_gdm_port *port,
 	else if (nstrict < AIROHA_NUM_QOS_QUEUES - 1)
 		mode = nstrict + 1;
 
-	return airoha_qdma_set_chan_tx_sched(port, channel, mode, w,
+	return airoha_qdma_set_chan_tx_sched(dev, channel, mode, w,
 					     ARRAY_SIZE(w));
 }
 
-static int airoha_qdma_get_tx_ets_stats(struct airoha_gdm_port *port,
-					int channel,
+static int airoha_qdma_get_tx_ets_stats(struct net_device *dev, int channel,
 					struct tc_ets_qopt_offload *opt)
 {
+	struct airoha_gdm_port *port = netdev_priv(dev);
 	u64 cpu_tx_packets = airoha_qdma_rr(port->qdma,
 					    REG_CNTR_VAL(channel << 1));
 	u64 fwd_tx_packets = airoha_qdma_rr(port->qdma,
 					    REG_CNTR_VAL((channel << 1) + 1));
 	u64 tx_packets = (cpu_tx_packets - port->cpu_tx_packets) +
 			 (fwd_tx_packets - port->fwd_tx_packets);
+
 	_bstats_update(opt->stats.bstats, 0, tx_packets);
 
 	port->cpu_tx_packets = cpu_tx_packets;
@@ -2246,7 +2246,7 @@ static int airoha_qdma_get_tx_ets_stats(struct airoha_gdm_port *port,
 	return 0;
 }
 
-static int airoha_tc_setup_qdisc_ets(struct airoha_gdm_port *port,
+static int airoha_tc_setup_qdisc_ets(struct net_device *dev,
 				     struct tc_ets_qopt_offload *opt)
 {
 	int channel;
@@ -2259,12 +2259,12 @@ static int airoha_tc_setup_qdisc_ets(struct airoha_gdm_port *port,
 
 	switch (opt->command) {
 	case TC_ETS_REPLACE:
-		return airoha_qdma_set_tx_ets_sched(port, channel, opt);
+		return airoha_qdma_set_tx_ets_sched(dev, channel, opt);
 	case TC_ETS_DESTROY:
 		/* PRIO is default qdisc scheduler */
-		return airoha_qdma_set_tx_prio_sched(port, channel);
+		return airoha_qdma_set_tx_prio_sched(dev, channel);
 	case TC_ETS_STATS:
-		return airoha_qdma_get_tx_ets_stats(port, channel, opt);
+		return airoha_qdma_get_tx_ets_stats(dev, channel, opt);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -2807,11 +2807,9 @@ static int airoha_tc_setup_qdisc_htb(struct net_device *dev,
 static int airoha_dev_tc_setup(struct net_device *dev, enum tc_setup_type type,
 			       void *type_data)
 {
-	struct airoha_gdm_port *port = netdev_priv(dev);
-
 	switch (type) {
 	case TC_SETUP_QDISC_ETS:
-		return airoha_tc_setup_qdisc_ets(port, type_data);
+		return airoha_tc_setup_qdisc_ets(dev, type_data);
 	case TC_SETUP_QDISC_HTB:
 		return airoha_tc_setup_qdisc_htb(dev, type_data);
 	case TC_SETUP_BLOCK: