target/linux/mediatek/patches-5.4/999-4102-mtk-crypto-offload-support.patch

--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2316,6 +2316,7 @@ static int mtk_poll_rx(struct napi_struc
 
 		skb_hnat_alg(skb) = 0;
 		skb_hnat_filled(skb) = 0;
+		skb_hnat_set_cdrt(skb, 0);
 		skb_hnat_magic_tag(skb) = HNAT_MAGIC_TAG;
 		skb_hnat_set_tops(skb, 0);
 		skb_hnat_set_is_decap(skb, 0);
--- a/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
+++ b/drivers/net/ethernet/mediatek/mtk_hnat/hnat_nf_hook.c
@@ -1076,6 +1076,9 @@ static unsigned int hnat_ipv4_get_nextho
 		return 0;
 	}
 
+	if (!skb_hnat_cdrt(skb) && dst && dst_xfrm(dst))
+		return 0;
+
 	rcu_read_lock_bh();
 	nexthop = (__force u32)rt_nexthop(rt, ip_hdr(skb)->daddr);
 	neigh = __ipv4_neigh_lookup_noref(dev, nexthop);
@@ -1097,7 +1100,7 @@ static unsigned int hnat_ipv4_get_nextho
 	 * outer header, we must update its outer mac header pointer
 	 * before filling outer mac or it may screw up inner mac
 	 */
-	if (skb_hnat_tops(skb) && skb_hnat_is_encap(skb)) {
+	if ((skb_hnat_tops(skb) && skb_hnat_is_encap(skb)) || skb_hnat_cdrt(skb)) {
 		skb_push(skb, sizeof(struct ethhdr));
 		skb_reset_mac_header(skb);
 	}
@@ -1105,7 +1108,7 @@ static unsigned int hnat_ipv4_get_nextho
 	memcpy(eth_hdr(skb)->h_dest, neigh->ha, ETH_ALEN);
 	memcpy(eth_hdr(skb)->h_source, out->dev_addr, ETH_ALEN);
 
-	if (skb_hnat_tops(skb) && skb_hnat_is_encap(skb))
+	if ((skb_hnat_tops(skb) && skb_hnat_is_encap(skb)) || skb_hnat_cdrt(skb))
 		skb_pull(skb, sizeof(struct ethhdr));
 
 	rcu_read_unlock_bh();
@@ -1299,6 +1302,9 @@ static inline void hnat_fill_offload_eng
 		 */
 		entry->ipv4_hnapt.tport_id = NR_TDMA_QDMA_TPORT;
 		entry->ipv4_hnapt.tops_entry = skb_hnat_tops(skb);
+	} else if (skb_hnat_cdrt(skb)) {
+		entry->ipv4_hnapt.tport_id = NR_EIP197_QDMA_TPORT;
+		entry->ipv4_hnapt.cdrt_id = skb_hnat_cdrt(skb);
 	} else {
 		return;
 	}
@@ -1344,7 +1350,8 @@ static unsigned int skb_to_hnat_info(str
 	if (whnat && is_hnat_pre_filled(foe))
 		return 0;
 
-	if (skb_hnat_tops(skb) && !(hw_path->flags & FLOW_OFFLOAD_PATH_TNL)) {
+	if ((skb_hnat_tops(skb) && !(hw_path->flags & FLOW_OFFLOAD_PATH_TNL))
+	    || (skb_hnat_cdrt(skb) && skb_dst(skb) && !dst_xfrm(skb_dst(skb)))) {
 		hnat_get_filled_unbind_entry(skb, &entry);
 		goto hnat_entry_bind;
 	}
@@ -1744,7 +1751,8 @@ static unsigned int skb_to_hnat_info(str
 	/* Fill Layer2 Info.*/
 	entry = ppe_fill_L2_info(eth, entry, hw_path);
 
-	if (skb_hnat_tops(skb) && hw_path->flags & FLOW_OFFLOAD_PATH_TNL)
+	if ((skb_hnat_tops(skb) && hw_path->flags & FLOW_OFFLOAD_PATH_TNL)
+	    || (!skb_hnat_cdrt(skb) && skb_dst(skb) && dst_xfrm(skb_dst(skb))))
 		goto hnat_entry_skip_bind;
 
 hnat_entry_bind:
@@ -1950,6 +1958,8 @@ hnat_entry_bind:
 
 #if defined(CONFIG_MEDIATEK_NETSYS_V3)
 	hnat_fill_offload_engine_entry(skb, &entry, dev);
+	if (skb_hnat_cdrt(skb))
+		entry = ppe_fill_L2_info(eth, entry, hw_path);
 #endif
 
 hnat_entry_skip_bind:
@@ -2227,6 +2237,7 @@ int mtk_sw_nat_hook_rx(struct sk_buff *s
 
 	skb_hnat_alg(skb) = 0;
 	skb_hnat_set_tops(skb, 0);
+	skb_hnat_set_cdrt(skb, 0);
 	skb_hnat_magic_tag(skb) = HNAT_MAGIC_TAG;
 
 	if (skb_hnat_iface(skb) == FOE_MAGIC_WED0)
@@ -2313,7 +2324,8 @@ static unsigned int mtk_hnat_accel_type(
 	 * is from local_out which is also filtered in sanity check.
 	 */
 	dst = skb_dst(skb);
-	if (dst && dst_xfrm(dst))
+	if (dst && dst_xfrm(dst)
+	    && (!mtk_crypto_offloadable || !mtk_crypto_offloadable(skb)))
 		return 0;
 
 	ct = nf_ct_get(skb, &ctinfo);
@@ -2709,6 +2721,14 @@ static unsigned int mtk_hnat_nf_post_rou
 		}
 	}
 
+	/* we are not support protocols other than IPv4 TCP for crypto offload yet */
+	if (skb_hnat_is_decrypt(skb)
+	    && (ntohs(skb->protocol) != ETH_P_IP
+		|| ip_hdr(skb)->protocol != IPPROTO_TCP)) {
+		skb_hnat_alg(skb) = 1;
+		return 0;
+	}
+
 	if (!IS_LAN_GRP(out) && !IS_WAN(out) && !IS_EXT(out))
 		is_virt_dev = true;
 
@@ -3016,7 +3036,10 @@ mtk_hnat_ipv4_nf_local_out(void *priv, s
 	if (iph->protocol == IPPROTO_IPV6) {
 		entry->udib1.pkt_type = IPV6_6RD;
 		hnat_set_head_frags(state, skb, 0, hnat_set_alg);
-	} else if (!skb_hnat_tops(skb)) {
+	} else if (is_magic_tag_valid(skb)
+		   && (skb_hnat_cdrt(skb) || skb_hnat_tops(skb))) {
+		hnat_set_head_frags(state, skb, 0, hnat_set_alg);
+	} else {
 		hnat_set_head_frags(state, skb, 1, hnat_set_alg);
 	}
 
--- a/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h
+++ b/drivers/net/ethernet/mediatek/mtk_hnat/nf_hnat_mtk.h
@@ -46,7 +46,8 @@ struct hnat_desc {
 	u32 amsdu : 1;
 	u32 tops : 6;
 	u32 is_decap : 1;
-	u32 resv3 : 12;
+	u32 cdrt : 8;
+	u32 resv3 : 4;
 	u32 magic_tag_protect : 16;
 } __packed;
 #elif defined(CONFIG_MEDIATEK_NETSYS_RX_V2)
@@ -99,12 +100,16 @@ struct hnat_desc {
 #define skb_hnat_is_encap(skb) (!skb_hnat_is_decap(skb))
 #define skb_hnat_set_tops(skb, tops) ((skb_hnat_tops(skb)) = (tops))
 #define skb_hnat_set_is_decap(skb, is_decap) ((skb_hnat_is_decap(skb)) = (is_decap))
+#define skb_hnat_cdrt(skb) (((struct hnat_desc *)((skb)->head))->cdrt)
+#define skb_hnat_set_cdrt(skb, cdrt) ((skb_hnat_cdrt(skb)) = (cdrt))
 #else /* !defined(CONFIG_MEDIATEK_NETSYS_V3) */
 #define skb_hnat_tops(skb) (0)
 #define skb_hnat_is_decap(skb) (0)
 #define skb_hnat_is_encap(skb) (0)
 #define skb_hnat_set_tops(skb, tops)
 #define skb_hnat_set_is_decap(skb, is_decap)
+#define skb_hnat_cdrt(skb) (0)
+#define skb_hnat_set_cdrt(skb, cdrt)
 #endif /* defined(CONFIG_MEDIATEK_NETSYS_V3) */
 #define skb_hnat_magic(skb) (((struct hnat_desc *)(skb->head))->magic)
 #define skb_hnat_reason(skb) (((struct hnat_desc *)(skb->head))->crsn)
--- a/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
+++ b/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
@@ -49,6 +49,8 @@ int (*mtk_tnl_decap_offload)(struct sk_b
 EXPORT_SYMBOL(mtk_tnl_decap_offload);
 bool (*mtk_tnl_decap_offloadable)(struct sk_buff *skb) = NULL;
 EXPORT_SYMBOL(mtk_tnl_decap_offloadable);
+bool (*mtk_crypto_offloadable)(struct sk_buff *skb) = NULL;
+EXPORT_SYMBOL(mtk_crypto_offloadable);
 
 static void hnat_sma_build_entry(struct timer_list *t)
 {
--- a/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
+++ b/drivers/net/ethernet/mediatek/mtk_hnat/hnat.h
@@ -1087,6 +1087,8 @@ enum FoeIpAct {
 #define NR_WDMA1_PORT 9
 #define NR_WDMA2_PORT 13
 #define NR_GMAC3_PORT 15
+#define NR_EIP197_TPORT 2
+#define NR_EIP197_QDMA_TPORT 3
 #define NR_TDMA_TPORT 4
 #define NR_TDMA_QDMA_TPORT 5
 #define LAN_DEV_NAME hnat_priv->lan
@@ -1233,6 +1235,7 @@ extern int qos_toggle;
 extern int (*mtk_tnl_encap_offload)(struct sk_buff *skb);
 extern int (*mtk_tnl_decap_offload)(struct sk_buff *skb);
 extern bool (*mtk_tnl_decap_offloadable)(struct sk_buff *skb);
+extern bool (*mtk_crypto_offloadable)(struct sk_buff *skb);
 
 int ext_if_add(struct extdev_entry *ext_entry);
 int ext_if_del(struct extdev_entry *ext_entry);