flow_offload: add flow_rule and flow_match structures and use them

This patch wraps the dissector key and mask - that flower uses to
represent the matching side - around the flow_match structure.

To avoid a follow up patch that would edit the same LoCs in the drivers,
this patch also wraps this new flow match structure around the flow rule
object. This new structure will also contain the flow actions in follow
up patches.

This introduces two new interfaces:

	bool flow_rule_match_key(rule, dissector_id)

that returns true if a given matching key is set on, and:

	flow_rule_match_XYZ(rule, &match);

To fetch the matching side XYZ into the match container structure, to
retrieve the key and the mask with one single call.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

12 files changed, 908 insertions, 1205 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index c683b5e96b1d..90a2170c5138 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -177,18 +177,12 @@ static int bnxt_tc_parse_actions(struct bnxt *bp,
 	return 0;
 }
 
-#define GET_KEY(flow_cmd, key_type)					\
-		skb_flow_dissector_target((flow_cmd)->dissector, key_type,\
-					  (flow_cmd)->key)
-#define GET_MASK(flow_cmd, key_type)					\
-		skb_flow_dissector_target((flow_cmd)->dissector, key_type,\
-					  (flow_cmd)->mask)
-
 static int bnxt_tc_parse_flow(struct bnxt *bp,
 			      struct tc_cls_flower_offload *tc_flow_cmd,
 			      struct bnxt_tc_flow *flow)
 {
-	struct flow_dissector *dissector = tc_flow_cmd->dissector;
+	struct flow_rule *rule = tc_cls_flower_offload_flow_rule(tc_flow_cmd);
+	struct flow_dissector *dissector = rule->match.dissector;
 
 	/* KEY_CONTROL and KEY_BASIC are needed for forming a meaningful key */
 	if ((dissector->used_keys & BIT(FLOW_DISSECTOR_KEY_CONTROL)) == 0 ||
@@ -198,140 +192,120 @@ static int bnxt_tc_parse_flow(struct bnxt *bp,
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_BASIC)) {
-		struct flow_dissector_key_basic *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_BASIC);
-		struct flow_dissector_key_basic *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_BASIC);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+		struct flow_match_basic match;
 
-		flow->l2_key.ether_type = key->n_proto;
-		flow->l2_mask.ether_type = mask->n_proto;
+		flow_rule_match_basic(rule, &match);
+		flow->l2_key.ether_type = match.key->n_proto;
+		flow->l2_mask.ether_type = match.mask->n_proto;
 
-		if (key->n_proto == htons(ETH_P_IP) ||
-		    key->n_proto == htons(ETH_P_IPV6)) {
-			flow->l4_key.ip_proto = key->ip_proto;
-			flow->l4_mask.ip_proto = mask->ip_proto;
+		if (match.key->n_proto == htons(ETH_P_IP) ||
+		    match.key->n_proto == htons(ETH_P_IPV6)) {
+			flow->l4_key.ip_proto = match.key->ip_proto;
+			flow->l4_mask.ip_proto = match.mask->ip_proto;
 		}
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
-		struct flow_dissector_key_eth_addrs *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ETH_ADDRS);
-		struct flow_dissector_key_eth_addrs *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_ETH_ADDRS);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
+		struct flow_match_eth_addrs match;
 
+		flow_rule_match_eth_addrs(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_ETH_ADDRS;
-		ether_addr_copy(flow->l2_key.dmac, key->dst);
-		ether_addr_copy(flow->l2_mask.dmac, mask->dst);
-		ether_addr_copy(flow->l2_key.smac, key->src);
-		ether_addr_copy(flow->l2_mask.smac, mask->src);
+		ether_addr_copy(flow->l2_key.dmac, match.key->dst);
+		ether_addr_copy(flow->l2_mask.dmac, match.mask->dst);
+		ether_addr_copy(flow->l2_key.smac, match.key->src);
+		ether_addr_copy(flow->l2_mask.smac, match.mask->src);
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_VLAN)) {
-		struct flow_dissector_key_vlan *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_VLAN);
-		struct flow_dissector_key_vlan *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_VLAN);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+		struct flow_match_vlan match;
 
+		flow_rule_match_vlan(rule, &match);
 		flow->l2_key.inner_vlan_tci =
-		   cpu_to_be16(VLAN_TCI(key->vlan_id, key->vlan_priority));
+			cpu_to_be16(VLAN_TCI(match.key->vlan_id,
+					     match.key->vlan_priority));
 		flow->l2_mask.inner_vlan_tci =
-		   cpu_to_be16((VLAN_TCI(mask->vlan_id, mask->vlan_priority)));
+			cpu_to_be16((VLAN_TCI(match.mask->vlan_id,
+					      match.mask->vlan_priority)));
 		flow->l2_key.inner_vlan_tpid = htons(ETH_P_8021Q);
 		flow->l2_mask.inner_vlan_tpid = htons(0xffff);
 		flow->l2_key.num_vlans = 1;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
-		struct flow_dissector_key_ipv4_addrs *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_IPV4_ADDRS);
-		struct flow_dissector_key_ipv4_addrs *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_IPV4_ADDRS);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
+		struct flow_match_ipv4_addrs match;
 
+		flow_rule_match_ipv4_addrs(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_IPV4_ADDRS;
-		flow->l3_key.ipv4.daddr.s_addr = key->dst;
-		flow->l3_mask.ipv4.daddr.s_addr = mask->dst;
-		flow->l3_key.ipv4.saddr.s_addr = key->src;
-		flow->l3_mask.ipv4.saddr.s_addr = mask->src;
-	} else if (dissector_uses_key(dissector,
-				      FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
-		struct flow_dissector_key_ipv6_addrs *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_IPV6_ADDRS);
-		struct flow_dissector_key_ipv6_addrs *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_IPV6_ADDRS);
-
+		flow->l3_key.ipv4.daddr.s_addr = match.key->dst;
+		flow->l3_mask.ipv4.daddr.s_addr = match.mask->dst;
+		flow->l3_key.ipv4.saddr.s_addr = match.key->src;
+		flow->l3_mask.ipv4.saddr.s_addr = match.mask->src;
+	} else if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
+		struct flow_match_ipv6_addrs match;
+
+		flow_rule_match_ipv6_addrs(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_IPV6_ADDRS;
-		flow->l3_key.ipv6.daddr = key->dst;
-		flow->l3_mask.ipv6.daddr = mask->dst;
-		flow->l3_key.ipv6.saddr = key->src;
-		flow->l3_mask.ipv6.saddr = mask->src;
+		flow->l3_key.ipv6.daddr = match.key->dst;
+		flow->l3_mask.ipv6.daddr = match.mask->dst;
+		flow->l3_key.ipv6.saddr = match.key->src;
+		flow->l3_mask.ipv6.saddr = match.mask->src;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_PORTS)) {
-		struct flow_dissector_key_ports *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_PORTS);
-		struct flow_dissector_key_ports *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_PORTS);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+		struct flow_match_ports match;
 
+		flow_rule_match_ports(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_PORTS;
-		flow->l4_key.ports.dport = key->dst;
-		flow->l4_mask.ports.dport = mask->dst;
-		flow->l4_key.ports.sport = key->src;
-		flow->l4_mask.ports.sport = mask->src;
+		flow->l4_key.ports.dport = match.key->dst;
+		flow->l4_mask.ports.dport = match.mask->dst;
+		flow->l4_key.ports.sport = match.key->src;
+		flow->l4_mask.ports.sport = match.mask->src;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ICMP)) {
-		struct flow_dissector_key_icmp *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ICMP);
-		struct flow_dissector_key_icmp *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_ICMP);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ICMP)) {
+		struct flow_match_icmp match;
 
+		flow_rule_match_icmp(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_ICMP;
-		flow->l4_key.icmp.type = key->type;
-		flow->l4_key.icmp.code = key->code;
-		flow->l4_mask.icmp.type = mask->type;
-		flow->l4_mask.icmp.code = mask->code;
+		flow->l4_key.icmp.type = match.key->type;
+		flow->l4_key.icmp.code = match.key->code;
+		flow->l4_mask.icmp.type = match.mask->type;
+		flow->l4_mask.icmp.code = match.mask->code;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) {
-		struct flow_dissector_key_ipv4_addrs *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS);
-		struct flow_dissector_key_ipv4_addrs *mask =
-				GET_MASK(tc_flow_cmd,
-					 FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) {
+		struct flow_match_ipv4_addrs match;
 
+		flow_rule_match_enc_ipv4_addrs(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_TUNL_IPV4_ADDRS;
-		flow->tun_key.u.ipv4.dst = key->dst;
-		flow->tun_mask.u.ipv4.dst = mask->dst;
-		flow->tun_key.u.ipv4.src = key->src;
-		flow->tun_mask.u.ipv4.src = mask->src;
-	} else if (dissector_uses_key(dissector,
+		flow->tun_key.u.ipv4.dst = match.key->dst;
+		flow->tun_mask.u.ipv4.dst = match.mask->dst;
+		flow->tun_key.u.ipv4.src = match.key->src;
+		flow->tun_mask.u.ipv4.src = match.mask->src;
+	} else if (flow_rule_match_key(rule,
 				      FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS)) {
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
-		struct flow_dissector_key_keyid *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_KEYID);
-		struct flow_dissector_key_keyid *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_KEYID);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
+		struct flow_match_enc_keyid match;
 
+		flow_rule_match_enc_keyid(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_TUNL_ID;
-		flow->tun_key.tun_id = key32_to_tunnel_id(key->keyid);
-		flow->tun_mask.tun_id = key32_to_tunnel_id(mask->keyid);
+		flow->tun_key.tun_id = key32_to_tunnel_id(match.key->keyid);
+		flow->tun_mask.tun_id = key32_to_tunnel_id(match.mask->keyid);
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ENC_PORTS)) {
-		struct flow_dissector_key_ports *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_PORTS);
-		struct flow_dissector_key_ports *mask =
-			GET_MASK(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_PORTS);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS)) {
+		struct flow_match_ports match;
 
+		flow_rule_match_enc_ports(rule, &match);
 		flow->flags |= BNXT_TC_FLOW_FLAGS_TUNL_PORTS;
-		flow->tun_key.tp_dst = key->dst;
-		flow->tun_mask.tp_dst = mask->dst;
-		flow->tun_key.tp_src = key->src;
-		flow->tun_mask.tp_src = mask->src;
+		flow->tun_key.tp_dst = match.key->dst;
+		flow->tun_mask.tp_dst = match.mask->dst;
+		flow->tun_key.tp_src = match.key->src;
+		flow->tun_mask.tp_src = match.mask->src;
 	}
 
 	return bnxt_tc_parse_actions(bp, &flow->actions, tc_flow_cmd->exts);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index c116f96956fe..39c5af5dad3d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -83,28 +83,23 @@ static void cxgb4_process_flow_match(struct net_device *dev,
 				     struct tc_cls_flower_offload *cls,
 				     struct ch_filter_specification *fs)
 {
+	struct flow_rule *rule = tc_cls_flower_offload_flow_rule(cls);
 	u16 addr_type = 0;
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
-		struct flow_dissector_key_control *key =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_CONTROL,
-						  cls->key);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
+		struct flow_match_control match;
 
-		addr_type = key->addr_type;
+		flow_rule_match_control(rule, &match);
+		addr_type = match.key->addr_type;
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
-		struct flow_dissector_key_basic *key =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  cls->key);
-		struct flow_dissector_key_basic *mask =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  cls->mask);
-		u16 ethtype_key = ntohs(key->n_proto);
-		u16 ethtype_mask = ntohs(mask->n_proto);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+		struct flow_match_basic match;
+		u16 ethtype_key, ethtype_mask;
+
+		flow_rule_match_basic(rule, &match);
+		ethtype_key = ntohs(match.key->n_proto);
+		ethtype_mask = ntohs(match.mask->n_proto);
 
 		if (ethtype_key == ETH_P_ALL) {
 			ethtype_key = 0;
@@ -116,115 +111,89 @@ static void cxgb4_process_flow_match(struct net_device *dev,
 
 		fs->val.ethtype = ethtype_key;
 		fs->mask.ethtype = ethtype_mask;
-		fs->val.proto = key->ip_proto;
-		fs->mask.proto = mask->ip_proto;
+		fs->val.proto = match.key->ip_proto;
+		fs->mask.proto = match.mask->ip_proto;
 	}
 
 	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
-		struct flow_dissector_key_ipv4_addrs *key =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
-						  cls->key);
-		struct flow_dissector_key_ipv4_addrs *mask =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
-						  cls->mask);
+		struct flow_match_ipv4_addrs match;
+
+		flow_rule_match_ipv4_addrs(rule, &match);
 		fs->type = 0;
-		memcpy(&fs->val.lip[0], &key->dst, sizeof(key->dst));
-		memcpy(&fs->val.fip[0], &key->src, sizeof(key->src));
-		memcpy(&fs->mask.lip[0], &mask->dst, sizeof(mask->dst));
-		memcpy(&fs->mask.fip[0], &mask->src, sizeof(mask->src));
+		memcpy(&fs->val.lip[0], &match.key->dst, sizeof(match.key->dst));
+		memcpy(&fs->val.fip[0], &match.key->src, sizeof(match.key->src));
+		memcpy(&fs->mask.lip[0], &match.mask->dst, sizeof(match.mask->dst));
+		memcpy(&fs->mask.fip[0], &match.mask->src, sizeof(match.mask->src));
 
 		/* also initialize nat_lip/fip to same values */
-		memcpy(&fs->nat_lip[0], &key->dst, sizeof(key->dst));
-		memcpy(&fs->nat_fip[0], &key->src, sizeof(key->src));
-
+		memcpy(&fs->nat_lip[0], &match.key->dst, sizeof(match.key->dst));
+		memcpy(&fs->nat_fip[0], &match.key->src, sizeof(match.key->src));
 	}
 
 	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
-		struct flow_dissector_key_ipv6_addrs *key =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
-						  cls->key);
-		struct flow_dissector_key_ipv6_addrs *mask =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
-						  cls->mask);
+		struct flow_match_ipv6_addrs match;
 
+		flow_rule_match_ipv6_addrs(rule, &match);
 		fs->type = 1;
-		memcpy(&fs->val.lip[0], key->dst.s6_addr, sizeof(key->dst));
-		memcpy(&fs->val.fip[0], key->src.s6_addr, sizeof(key->src));
-		memcpy(&fs->mask.lip[0], mask->dst.s6_addr, sizeof(mask->dst));
-		memcpy(&fs->mask.fip[0], mask->src.s6_addr, sizeof(mask->src));
+		memcpy(&fs->val.lip[0], match.key->dst.s6_addr,
+		       sizeof(match.key->dst));
+		memcpy(&fs->val.fip[0], match.key->src.s6_addr,
+		       sizeof(match.key->src));
+		memcpy(&fs->mask.lip[0], match.mask->dst.s6_addr,
+		       sizeof(match.mask->dst));
+		memcpy(&fs->mask.fip[0], match.mask->src.s6_addr,
+		       sizeof(match.mask->src));
 
 		/* also initialize nat_lip/fip to same values */
-		memcpy(&fs->nat_lip[0], key->dst.s6_addr, sizeof(key->dst));
-		memcpy(&fs->nat_fip[0], key->src.s6_addr, sizeof(key->src));
+		memcpy(&fs->nat_lip[0], match.key->dst.s6_addr,
+		       sizeof(match.key->dst));
+		memcpy(&fs->nat_fip[0], match.key->src.s6_addr,
+		       sizeof(match.key->src));
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
-		struct flow_dissector_key_ports *key, *mask;
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+		struct flow_match_ports match;
 
-		key = skb_flow_dissector_target(cls->dissector,
-						FLOW_DISSECTOR_KEY_PORTS,
-						cls->key);
-		mask = skb_flow_dissector_target(cls->dissector,
-						 FLOW_DISSECTOR_KEY_PORTS,
-						 cls->mask);
-		fs->val.lport = cpu_to_be16(key->dst);
-		fs->mask.lport = cpu_to_be16(mask->dst);
-		fs->val.fport = cpu_to_be16(key->src);
-		fs->mask.fport = cpu_to_be16(mask->src);
+		flow_rule_match_ports(rule, &match);
+		fs->val.lport = cpu_to_be16(match.key->dst);
+		fs->mask.lport = cpu_to_be16(match.mask->dst);
+		fs->val.fport = cpu_to_be16(match.key->src);
+		fs->mask.fport = cpu_to_be16(match.mask->src);
 
 		/* also initialize nat_lport/fport to same values */
-		fs->nat_lport = cpu_to_be16(key->dst);
-		fs->nat_fport = cpu_to_be16(key->src);
+		fs->nat_lport = cpu_to_be16(match.key->dst);
+		fs->nat_fport = cpu_to_be16(match.key->src);
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_IP)) {
-		struct flow_dissector_key_ip *key, *mask;
-
-		key = skb_flow_dissector_target(cls->dissector,
-						FLOW_DISSECTOR_KEY_IP,
-						cls->key);
-		mask = skb_flow_dissector_target(cls->dissector,
-						 FLOW_DISSECTOR_KEY_IP,
-						 cls->mask);
-		fs->val.tos = key->tos;
-		fs->mask.tos = mask->tos;
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) {
+		struct flow_match_ip match;
+
+		flow_rule_match_ip(rule, &match);
+		fs->val.tos = match.key->tos;
+		fs->mask.tos = match.mask->tos;
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
-		struct flow_dissector_key_keyid *key, *mask;
-
-		key = skb_flow_dissector_target(cls->dissector,
-						FLOW_DISSECTOR_KEY_ENC_KEYID,
-						cls->key);
-		mask = skb_flow_dissector_target(cls->dissector,
-						 FLOW_DISSECTOR_KEY_ENC_KEYID,
-						 cls->mask);
-		fs->val.vni = be32_to_cpu(key->keyid);
-		fs->mask.vni = be32_to_cpu(mask->keyid);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
+		struct flow_match_enc_keyid match;
+
+		flow_rule_match_enc_keyid(rule, &match);
+		fs->val.vni = be32_to_cpu(match.key->keyid);
+		fs->mask.vni = be32_to_cpu(match.mask->keyid);
 		if (fs->mask.vni) {
 			fs->val.encap_vld = 1;
 			fs->mask.encap_vld = 1;
 		}
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_VLAN)) {
-		struct flow_dissector_key_vlan *key, *mask;
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+		struct flow_match_vlan match;
 		u16 vlan_tci, vlan_tci_mask;
 
-		key = skb_flow_dissector_target(cls->dissector,
-						FLOW_DISSECTOR_KEY_VLAN,
-						cls->key);
-		mask = skb_flow_dissector_target(cls->dissector,
-						 FLOW_DISSECTOR_KEY_VLAN,
-						 cls->mask);
-		vlan_tci = key->vlan_id | (key->vlan_priority <<
-					   VLAN_PRIO_SHIFT);
-		vlan_tci_mask = mask->vlan_id | (mask->vlan_priority <<
-						 VLAN_PRIO_SHIFT);
+		flow_rule_match_vlan(rule, &match);
+		vlan_tci = match.key->vlan_id | (match.key->vlan_priority <<
+					       VLAN_PRIO_SHIFT);
+		vlan_tci_mask = match.mask->vlan_id | (match.mask->vlan_priority <<
+						     VLAN_PRIO_SHIFT);
 		fs->val.ivlan = vlan_tci;
 		fs->mask.ivlan = vlan_tci_mask;
 
@@ -255,10 +224,12 @@ static void cxgb4_process_flow_match(struct net_device *dev,
 static int cxgb4_validate_flow_match(struct net_device *dev,
 				     struct tc_cls_flower_offload *cls)
 {
+	struct flow_rule *rule = tc_cls_flower_offload_flow_rule(cls);
+	struct flow_dissector *dissector = rule->match.dissector;
 	u16 ethtype_mask = 0;
 	u16 ethtype_key = 0;
 
-	if (cls->dissector->used_keys &
+	if (dissector->used_keys &
 	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
 	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
 	      BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
@@ -268,36 +239,29 @@ static int cxgb4_validate_flow_match(struct net_device *dev,
 	      BIT(FLOW_DISSECTOR_KEY_VLAN) |
 	      BIT(FLOW_DISSECTOR_KEY_IP))) {
 		netdev_warn(dev, "Unsupported key used: 0x%x\n",
-			    cls->dissector->used_keys);
+			    dissector->used_keys);
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
-		struct flow_dissector_key_basic *key =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  cls->key);
-		struct flow_dissector_key_basic *mask =
-			skb_flow_dissector_target(cls->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  cls->mask);
-		ethtype_key = ntohs(key->n_proto);
-		ethtype_mask = ntohs(mask->n_proto);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+		struct flow_match_basic match;
+
+		flow_rule_match_basic(rule, &match);
+		ethtype_key = ntohs(match.key->n_proto);
+		ethtype_mask = ntohs(match.mask->n_proto);
 	}
 
-	if (dissector_uses_key(cls->dissector, FLOW_DISSECTOR_KEY_IP)) {
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) {
 		u16 eth_ip_type = ethtype_key & ethtype_mask;
-		struct flow_dissector_key_ip *mask;
+		struct flow_match_ip match;
 
 		if (eth_ip_type != ETH_P_IP && eth_ip_type != ETH_P_IPV6) {
 			netdev_err(dev, "IP Key supported only with IPv4/v6");
 			return -EINVAL;
 		}
 
-		mask = skb_flow_dissector_target(cls->dissector,
-						 FLOW_DISSECTOR_KEY_IP,
-						 cls->mask);
-		if (mask->ttl) {
+		flow_rule_match_ip(rule, &match);
+		if (match.mask->ttl) {
 			netdev_warn(dev, "ttl match unsupported for offload");
 			return -EOPNOTSUPP;
 		}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5c6731b97059..44856a84738d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7169,11 +7169,13 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
 				 struct tc_cls_flower_offload *f,
 				 struct i40e_cloud_filter *filter)
 {
+	struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
+	struct flow_dissector *dissector = rule->match.dissector;
 	u16 n_proto_mask = 0, n_proto_key = 0, addr_type = 0;
 	struct i40e_pf *pf = vsi->back;
 	u8 field_flags = 0;
 
-	if (f->dissector->used_keys &
+	if (dissector->used_keys &
 	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
 	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
 	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
@@ -7183,143 +7185,109 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
 	      BIT(FLOW_DISSECTOR_KEY_PORTS) |
 	      BIT(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
 		dev_err(&pf->pdev->dev, "Unsupported key used: 0x%x\n",
-			f->dissector->used_keys);
+			dissector->used_keys);
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
-		struct flow_dissector_key_keyid *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_ENC_KEYID,
-						  f->key);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
+		struct flow_match_enc_keyid match;
 
-		struct flow_dissector_key_keyid *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_ENC_KEYID,
-						  f->mask);
-
-		if (mask->keyid != 0)
+		flow_rule_match_enc_keyid(rule, &match);
+		if (match.mask->keyid != 0)
 			field_flags |= I40E_CLOUD_FIELD_TEN_ID;
 
-		filter->tenant_id = be32_to_cpu(key->keyid);
+		filter->tenant_id = be32_to_cpu(match.key->keyid);
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
-		struct flow_dissector_key_basic *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  f->key);
-
-		struct flow_dissector_key_basic *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_BASIC,
-						  f->mask);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+		struct flow_match_basic match;
 
-		n_proto_key = ntohs(key->n_proto);
-		n_proto_mask = ntohs(mask->n_proto);
+		flow_rule_match_basic(rule, &match);
+		n_proto_key = ntohs(match.key->n_proto);
+		n_proto_mask = ntohs(match.mask->n_proto);
 
 		if (n_proto_key == ETH_P_ALL) {
 			n_proto_key = 0;
 			n_proto_mask = 0;
 		}
 		filter->n_proto = n_proto_key & n_proto_mask;
-		filter->ip_proto = key->ip_proto;
+		filter->ip_proto = match.key->ip_proto;
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
-		struct flow_dissector_key_eth_addrs *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
-						  f->key);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
+		struct flow_match_eth_addrs match;
 
-		struct flow_dissector_key_eth_addrs *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
-						  f->mask);
+		flow_rule_match_eth_addrs(rule, &match);
 
 		/* use is_broadcast and is_zero to check for all 0xf or 0 */
-		if (!is_zero_ether_addr(mask->dst)) {
-			if (is_broadcast_ether_addr(mask->dst)) {
+		if (!is_zero_ether_addr(match.mask->dst)) {
+			if (is_broadcast_ether_addr(match.mask->dst)) {
 				field_flags |= I40E_CLOUD_FIELD_OMAC;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad ether dest mask %pM\n",
-					mask->dst);
+					match.mask->dst);
 				return I40E_ERR_CONFIG;
 			}
 		}
 
-		if (!is_zero_ether_addr(mask->src)) {
-			if (is_broadcast_ether_addr(mask->src)) {
+		if (!is_zero_ether_addr(match.mask->src)) {
+			if (is_broadcast_ether_addr(match.mask->src)) {
 				field_flags |= I40E_CLOUD_FIELD_IMAC;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad ether src mask %pM\n",
-					mask->src);
+					match.mask->src);
 				return I40E_ERR_CONFIG;
 			}
 		}
-		ether_addr_copy(filter->dst_mac, key->dst);
-		ether_addr_copy(filter->src_mac, key->src);
+		ether_addr_copy(filter->dst_mac, match.key->dst);
+		ether_addr_copy(filter->src_mac, match.key->src);
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_VLAN)) {
-		struct flow_dissector_key_vlan *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_VLAN,
-						  f->key);
-		struct flow_dissector_key_vlan *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_VLAN,
-						  f->mask);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+		struct flow_match_vlan match;
 
-		if (mask->vlan_id) {
-			if (mask->vlan_id == VLAN_VID_MASK) {
+		flow_rule_match_vlan(rule, &match);
+		if (match.mask->vlan_id) {
+			if (match.mask->vlan_id == VLAN_VID_MASK) {
 				field_flags |= I40E_CLOUD_FIELD_IVLAN;
 
 			} else {
 				dev_err(&pf->pdev->dev, "Bad vlan mask 0x%04x\n",
-					mask->vlan_id);
+					match.mask->vlan_id);
 				return I40E_ERR_CONFIG;
 			}
 		}
 
-		filter->vlan_id = cpu_to_be16(key->vlan_id);
+		filter->vlan_id = cpu_to_be16(match.key->vlan_id);
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
-		struct flow_dissector_key_control *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_CONTROL,
-						  f->key);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
+		struct flow_match_control match;
 
-		addr_type = key->addr_type;
+		flow_rule_match_control(rule, &match);
+		addr_type = match.key->addr_type;
 	}
 
 	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
-		struct flow_dissector_key_ipv4_addrs *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
-						  f->key);
-		struct flow_dissector_key_ipv4_addrs *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
-						  f->mask);
-
-		if (mask->dst) {
-			if (mask->dst == cpu_to_be32(0xffffffff)) {
+		struct flow_match_ipv4_addrs match;
+
+		flow_rule_match_ipv4_addrs(rule, &match);
+		if (match.mask->dst) {
+			if (match.mask->dst == cpu_to_be32(0xffffffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad ip dst mask %pI4b\n",
-					&mask->dst);
+					&match.mask->dst);
 				return I40E_ERR_CONFIG;
 			}
 		}
 
-		if (mask->src) {
-			if (mask->src == cpu_to_be32(0xffffffff)) {
+		if (match.mask->src) {
+			if (match.mask->src == cpu_to_be32(0xffffffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad ip src mask %pI4b\n",
-					&mask->src);
+					&match.mask->src);
 				return I40E_ERR_CONFIG;
 			}
 		}
@@ -7328,70 +7296,60 @@ static int i40e_parse_cls_flower(struct i40e_vsi *vsi,
 			dev_err(&pf->pdev->dev, "Tenant id not allowed for ip filter\n");
 			return I40E_ERR_CONFIG;
 		}
-		filter->dst_ipv4 = key->dst;
-		filter->src_ipv4 = key->src;
+		filter->dst_ipv4 = match.key->dst;
+		filter->src_ipv4 = match.key->src;
 	}
 
 	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
-		struct flow_dissector_key_ipv6_addrs *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
-						  f->key);
-		struct flow_dissector_key_ipv6_addrs *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
-						  f->mask);
+		struct flow_match_ipv6_addrs match;
+
+		flow_rule_match_ipv6_addrs(rule, &match);
 
 		/* src and dest IPV6 address should not be LOOPBACK
 		 * (0:0:0:0:0:0:0:1), which can be represented as ::1
 		 */
-		if (ipv6_addr_loopback(&key->dst) ||
-		    ipv6_addr_loopback(&key->src)) {
+		if (ipv6_addr_loopback(&match.key->dst) ||
+		    ipv6_addr_loopback(&match.key->src)) {
 			dev_err(&pf->pdev->dev,
 				"Bad ipv6, addr is LOOPBACK\n");
 			return I40E_ERR_CONFIG;
 		}
-		if (!ipv6_addr_any(&mask->dst) || !ipv6_addr_any(&mask->src))
+		if (!ipv6_addr_any(&match.mask->dst) ||
+		    !ipv6_addr_any(&match.mask->src))
 			field_flags |= I40E_CLOUD_FIELD_IIP;
 
-		memcpy(&filter->src_ipv6, &key->src.s6_addr32,
+		memcpy(&filter->src_ipv6, &match.key->src.s6_addr32,
 		       sizeof(filter->src_ipv6));
-		memcpy(&filter->dst_ipv6, &key->dst.s6_addr32,
+		memcpy(&filter->dst_ipv6, &match.key->dst.s6_addr32,
 		       sizeof(filter->dst_ipv6));
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
-		struct flow_dissector_key_ports *key =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_PORTS,
-						  f->key);
-		struct flow_dissector_key_ports *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_PORTS,
-						  f->mask);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+		struct flow_match_ports match;
 
-		if (mask->src) {
-			if (mask->src == cpu_to_be16(0xffff)) {
+		flow_rule_match_ports(rule, &match);
+		if (match.mask->src) {
+			if (match.mask->src == cpu_to_be16(0xffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad src port mask 0x%04x\n",
-					be16_to_cpu(mask->src));
+					be16_to_cpu(match.mask->src));
 				return I40E_ERR_CONFIG;
 			}
 		}
 
-		if (mask->dst) {
-			if (mask->dst == cpu_to_be16(0xffff)) {
+		if (match.mask->dst) {
+			if (match.mask->dst == cpu_to_be16(0xffff)) {
 				field_flags |= I40E_CLOUD_FIELD_IIP;
 			} else {
 				dev_err(&pf->pdev->dev, "Bad dst port mask 0x%04x\n",
-					be16_to_cpu(mask->dst));
+					be16_to_cpu(match.mask->dst));
 				return I40E_ERR_CONFIG;
 			}
 		}
 
-		filter->dst_port = key->dst;
-		filter->src_port = key->src;
+		filter->dst_port = match.key->dst;
+		filter->src_port = match.key->src;
 
 		switch (filter->ip_proto) {
 		case IPPROTO_TCP:
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 9f2b7b7adf6b..4569d69a2b55 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2439,6 +2439,8 @@ static int iavf_parse_cls_flower(struct iavf_adapter *adapter,
 				 struct tc_cls_flower_offload *f,
 				 struct iavf_cloud_filter *filter)
 {
+	struct flow_rule *rule = tc_cls_flower_offload_flow_rule(f);
+	struct flow_dissector *dissector = rule->match.dissector;
 	u16 n_proto_mask = 0;
 	u16 n_proto_key = 0;
 	u8 field_flags = 0;
@@ -2447,7 +2449,7 @@ static int iavf_parse_cls_flower(struct iavf_adapter *adapter,
 	int i = 0;
 	struct virtchnl_filter *vf = &filter->f;
 
-	if (f->dissector->used_keys &
+	if (dissector->used_keys &
 	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
 	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
 	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
@@ -2457,32 +2459,24 @@ static int iavf_parse_cls_flower(struct iavf_adapter *adapter,
 	      BIT(FLOW_DISSECTOR_KEY_PORTS) |
 	      BIT(FLOW_DISSECTOR_KEY_ENC_KEYID))) {
 		dev_err(&adapter->pdev->dev, "Unsupported key used: 0x%x\n",
-			f->dissector->used_keys);
+			dissector->used_keys);
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
-		struct flow_dissector_key_keyid *mask =
-			skb_flow_dissector_target(f->dissector,
-						  FLOW_DISSECTOR_KEY_ENC_KEYID,
-						  f->mask);
+	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {