[PATCH net-next] net: airoha: configure QoS channel for HW accelerated flowtable traffic

[Lorenzo Bianconi]

As done for the SW path, configure the QoS channel for HW accelerated
traffic according to the user port index when forwarding to a DSA port,
or rely on the GDM port identifier otherwise. This allows HTB shaping
to be applied to HW accelerated traffic.

Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
---
 drivers/net/ethernet/airoha/airoha_ppe.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 5c9dff6bccd1..e833c50ac35f 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -334,7 +334,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth,
 						info.wcid);
 		} else {
 			struct airoha_gdm_port *port = netdev_priv(dev);
-			u8 pse_port;
+			u8 pse_port, channel;
 
 			if (!airoha_is_valid_gdm_port(eth, port))
 				return -EINVAL;
@@ -347,6 +347,14 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth,
 					       * loopback
 					       */
 
+			/* For traffic forwarded to DSA devices select QoS
+			 * channel according to the DSA user port index, rely
+			 * on port id otherwise.
+			 */
+			channel = dsa_port >= 0 ? dsa_port : port->id;
+			channel = channel % AIROHA_NUM_QOS_CHANNELS;
+			qdata |= FIELD_PREP(AIROHA_FOE_CHANNEL, channel);
+
 			val |= FIELD_PREP(AIROHA_FOE_IB2_PSE_PORT, pse_port) |
 			       AIROHA_FOE_IB2_PSE_QOS;
 			/* For downlink traffic consume SRAM memory for hw

---
base-commit: 28df22acc2751abf6e6316a9f1f9cd422741bd03
change-id: 20260430-airoha-ppe-qos-channel-23a4132a80aa

Best regards,
-- 
Lorenzo Bianconi <lorenzo at kernel.org>