git.openwrt.org Git - openwrt/openwrt.git/blob

   1 From c86fac5365d3a068422beeb508f2741f1a2d734d Mon Sep 17 00:00:00 2001
   2 From: Lorenzo Bianconi <lorenzo@kernel.org>
   3 Date: Mon, 2 Jun 2025 12:55:39 +0200
   4 Subject: [PATCH 3/3] net: airoha: Fix smac_id configuration in bridge mode
   5
   6 Set PPE entry smac_id field to 0xf in airoha_ppe_foe_commit_subflow_entry
   7 routine for IPv6 traffic in order to instruct the hw to keep original
   8 source mac address for IPv6 hw accelerated traffic in bridge mode.
   9
  10 Fixes: cd53f622611f ("net: airoha: Add L2 hw acceleration support")
  11 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  12 Reviewed-by: Simon Horman <horms@kernel.org>
  13 Link: https://patch.msgid.link/20250602-airoha-flowtable-ipv6-fix-v2-3-3287f8b55214@kernel.org
  14 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
  15 ---
  16  drivers/net/ethernet/airoha/airoha_ppe.c | 5 +++++
  17  1 file changed, 5 insertions(+)
  18
  19 --- a/drivers/net/ethernet/airoha/airoha_ppe.c
  20 +++ b/drivers/net/ethernet/airoha/airoha_ppe.c
  21 @@ -660,6 +660,11 @@ airoha_ppe_foe_commit_subflow_entry(stru
  22         if (type >= PPE_PKT_TYPE_IPV6_ROUTE_3T) {
  23                 memcpy(&hwe.ipv6.l2, &e->data.bridge.l2, sizeof(hwe.ipv6.l2));
  24                 hwe.ipv6.ib2 = e->data.bridge.ib2;
  25 +               /* setting smac_id to 0xf instruct the hw to keep original
  26 +                * source mac address
  27 +                */
  28 +               hwe.ipv6.l2.src_mac_hi = FIELD_PREP(AIROHA_FOE_MAC_SMAC_ID,
  29 +                                                   0xf);
  30         } else {
  31                 memcpy(&hwe.bridge.l2, &e->data.bridge.l2,
  32                        sizeof(hwe.bridge.l2));