diff options
Diffstat (limited to 'target/linux/generic/pending-5.10/701-05-net-ethernet-mtk_eth_soc-add-ipv6-flow-offload-suppo.patch')
| -rw-r--r-- | target/linux/generic/pending-5.10/701-05-net-ethernet-mtk_eth_soc-add-ipv6-flow-offload-suppo.patch | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.10/701-05-net-ethernet-mtk_eth_soc-add-ipv6-flow-offload-suppo.patch b/target/linux/generic/pending-5.10/701-05-net-ethernet-mtk_eth_soc-add-ipv6-flow-offload-suppo.patch new file mode 100644 index 0000000000..925c16ac69 --- /dev/null +++ b/target/linux/generic/pending-5.10/701-05-net-ethernet-mtk_eth_soc-add-ipv6-flow-offload-suppo.patch @@ -0,0 +1,79 @@ +From: David Bentham <db260179@gmail.com> +Date: Mon, 21 Feb 2022 15:36:16 +0100 +Subject: [PATCH] net: ethernet: mtk_eth_soc: add ipv6 flow offload + support + +Add the missing IPv6 flow offloading support for routing only. +Hardware flow offloading is done by the packet processing engine (PPE) +of the Ethernet MAC and as it doesn't support mangling of IPv6 packets, +IPv6 NAT cannot be supported. + +Signed-off-by: David Bentham <db260179@gmail.com> +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c ++++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c +@@ -7,6 +7,7 @@ + #include <linux/rhashtable.h> + #include <linux/if_ether.h> + #include <linux/ip.h> ++#include <linux/ipv6.h> + #include <net/flow_offload.h> + #include <net/pkt_cls.h> + #include <net/dsa.h> +@@ -21,6 +22,11 @@ struct mtk_flow_data { + __be32 src_addr; + __be32 dst_addr; + } v4; ++ ++ struct { ++ struct in6_addr src_addr; ++ struct in6_addr dst_addr; ++ } v6; + }; + + __be16 src_port; +@@ -66,6 +72,14 @@ mtk_flow_set_ipv4_addr(struct mtk_foe_en + data->v4.dst_addr, data->dst_port); + } + ++static int ++mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data) ++{ ++ return mtk_foe_entry_set_ipv6_tuple(foe, ++ data->v6.src_addr.s6_addr32, data->src_port, ++ data->v6.dst_addr.s6_addr32, data->dst_port); ++} ++ + static void + mtk_flow_offload_mangle_eth(const struct flow_action_entry *act, void *eth) + { +@@ -297,6 +311,9 @@ mtk_flow_offload_replace(struct mtk_eth + case FLOW_DISSECTOR_KEY_IPV4_ADDRS: + offload_type = MTK_PPE_PKT_TYPE_IPV4_HNAPT; + break; ++ case FLOW_DISSECTOR_KEY_IPV6_ADDRS: ++ offload_type = MTK_PPE_PKT_TYPE_IPV6_ROUTE_5T; ++ break; + default: + return -EOPNOTSUPP; + } +@@ -332,6 +349,17 @@ mtk_flow_offload_replace(struct mtk_eth + mtk_flow_set_ipv4_addr(&foe, &data, false); + } + ++ if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) { ++ struct flow_match_ipv6_addrs addrs; ++ ++ flow_rule_match_ipv6_addrs(rule, &addrs); ++ ++ data.v6.src_addr = addrs.key->src; ++ data.v6.dst_addr = addrs.key->dst; ++ ++ mtk_flow_set_ipv6_addr(&foe, &data); ++ } ++ + flow_action_for_each(i, act, &rule->action) { + if (act->id != FLOW_ACTION_MANGLE) + continue; |