target/linux/generic/pending-5.15/701-net-ethernet-mtk_eth_soc-add-ipv6-flow-offloading-support.patch

   1 --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
   2 +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
   3 @@ -6,6 +6,7 @@
   4  #include <linux/if_ether.h>
   5  #include <linux/rhashtable.h>
   6  #include <linux/ip.h>
   7 +#include <linux/ipv6.h>
   8  #include <net/flow_offload.h>
   9  #include <net/pkt_cls.h>
  10  #include <net/dsa.h>
  11 @@ -19,6 +20,11 @@ struct mtk_flow_data {
  12                         __be32 src_addr;
  13                         __be32 dst_addr;
  14                 } v4;
  15 +
  16 +               struct {
  17 +                       struct in6_addr src_addr;
  18 +                       struct in6_addr dst_addr;
  19 +               } v6;
  20         };
  21
  22         __be16 src_port;
  23 @@ -63,6 +69,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en
  24                                             data->v4.dst_addr, data->dst_port);
  25  }
  26
  27 +static int
  28 +mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
  29 +{
  30 +       return mtk_foe_entry_set_ipv6_tuple(foe,
  31 +                                           data->v6.src_addr.s6_addr32, data->src_port,
  32 +                                           data->v6.dst_addr.s6_addr32, data->dst_port);
  33 +}
  34 +
  35  static void
  36  mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth)
  37  {
  38 @@ -256,6 +270,9 @@ mtk_flow_offload_replace(struct mtk_eth
  39         case FLOW_DISSECTOR_KEY_IPV4_ADDRS:
  40                 offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT;
  41                 break;
  42 +       case FLOW_DISSECTOR_KEY_IPV6_ADDRS:
  43 +               offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T;
  44 +               break;
  45         default:
  46                 return -EOPNOTSUPP;
  47         }
  48 @@ -291,6 +308,17 @@ mtk_flow_offload_replace(struct mtk_eth
  49                 mtk_flow_set_ipv4_addr(&foe, &data, false);
  50         }
  51
  52 +       if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
  53 +               struct flow_match_ipv6_addrs addrs;
  54 +
  55 +               flow_rule_match_ipv6_addrs(rule, &addrs);
  56 +
  57 +               data.v6.src_addr = addrs.key->src;
  58 +               data.v6.dst_addr = addrs.key->dst;
  59 +
  60 +               mtk_flow_set_ipv6_addr(&foe, &data);
  61 +       }
  62 +
  63         flow_action_for_each(i, act, &rule->action) {
  64                 if (act->id != FLOW_ACTION_MANGLE)
  65                         continue;