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authorLorenzo Bianconi <lorenzo@kernel.org>2025-11-13 18:19:38 +0100
committerJakub Kicinski <kuba@kernel.org>2025-11-17 20:00:07 -0800
commit8e0a754b0836d996802713bbebc87bc1cc17925c (patch)
treec79175da6d4c5d0a28d3f347c0c06deb7fba5687
parentselftests: net: lib: Do not overwrite error messages (diff)
downloadwireguard-linux-8e0a754b0836d996802713bbebc87bc1cc17925c.tar.xz
wireguard-linux-8e0a754b0836d996802713bbebc87bc1cc17925c.zip
net: airoha: Do not loopback traffic to GDM2 if it is available on the device
Airoha_eth driver forwards offloaded uplink traffic (packets received on GDM1 and forwarded to GDM{3,4}) to GDM2 in order to apply hw QoS. This is correct if the device does not support a dedicated GDM2 port. In this case, in order to enable hw offloading for uplink traffic, the packets should be sent to GDM{3,4} directly. Fixes: 9cd451d414f6 ("net: airoha: Add loopback support for GDM2") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20251113-airoha-hw-offload-gdm2-fix-v1-1-7e4ca300872f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/airoha/airoha_ppe.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/airoha/airoha_ppe.c b/drivers/net/ethernet/airoha/airoha_ppe.c
index 691361b25407..c0e17035db18 100644
--- a/drivers/net/ethernet/airoha/airoha_ppe.c
+++ b/drivers/net/ethernet/airoha/airoha_ppe.c
@@ -282,7 +282,7 @@ static int airoha_ppe_foe_entry_prepare(struct airoha_eth *eth,
if (!airoha_is_valid_gdm_port(eth, port))
return -EINVAL;
- if (dsa_port >= 0)
+ if (dsa_port >= 0 || eth->ports[1])
pse_port = port->id == 4 ? FE_PSE_PORT_GDM4
: port->id;
else