bnxt_en: implement fully specified 5-tuple masks

Support subfield masking for IP addresses and ports. Previously, only
entire fields could be included or excluded in NTUPLE filters.

Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Link: https://lore.kernel.org/r/20240205223202.25341-5-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

3 files changed, 134 insertions, 168 deletions

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 2bc907548707..0d65d4574045 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -246,6 +246,49 @@ static const u16 bnxt_async_events_arr[] = {
 
 static struct workqueue_struct *bnxt_pf_wq;
 
+#define BNXT_IPV6_MASK_ALL {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
+			       0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
+#define BNXT_IPV6_MASK_NONE {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
+
+const struct bnxt_flow_masks BNXT_FLOW_MASK_NONE = {
+	.ports = {
+		.src = 0,
+		.dst = 0,
+	},
+	.addrs = {
+		.v6addrs = {
+			.src = BNXT_IPV6_MASK_NONE,
+			.dst = BNXT_IPV6_MASK_NONE,
+		},
+	},
+};
+
+const struct bnxt_flow_masks BNXT_FLOW_IPV6_MASK_ALL = {
+	.ports = {
+		.src = cpu_to_be16(0xffff),
+		.dst = cpu_to_be16(0xffff),
+	},
+	.addrs = {
+		.v6addrs = {
+			.src = BNXT_IPV6_MASK_ALL,
+			.dst = BNXT_IPV6_MASK_ALL,
+		},
+	},
+};
+
+const struct bnxt_flow_masks BNXT_FLOW_IPV4_MASK_ALL = {
+	.ports = {
+		.src = cpu_to_be16(0xffff),
+		.dst = cpu_to_be16(0xffff),
+	},
+	.addrs = {
+		.v4addrs = {
+			.src = cpu_to_be32(0xffffffff),
+			.dst = cpu_to_be32(0xffffffff),
+		},
+	},
+};
+
 static bool bnxt_vf_pciid(enum board_idx idx)
 {
 	return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF ||
@@ -5690,6 +5733,7 @@ int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 {
 	struct hwrm_cfa_ntuple_filter_alloc_output *resp;
 	struct hwrm_cfa_ntuple_filter_alloc_input *req;
+	struct bnxt_flow_masks *masks = &fltr->fmasks;
 	struct flow_keys *keys = &fltr->fkeys;
 	struct bnxt_l2_filter *l2_fltr;
 	struct bnxt_vnic_info *vnic;
@@ -5722,25 +5766,15 @@ int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 		req->ethertype = htons(ETH_P_IPV6);
 		req->ip_addr_type =
 			CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6;
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) {
-			*(struct in6_addr *)&req->src_ipaddr[0] =
-				keys->addrs.v6addrs.src;
-			bnxt_fill_ipv6_mask(req->src_ipaddr_mask);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) {
-			*(struct in6_addr *)&req->dst_ipaddr[0] =
-				keys->addrs.v6addrs.dst;
-			bnxt_fill_ipv6_mask(req->dst_ipaddr_mask);
-		}
+		*(struct in6_addr *)&req->src_ipaddr[0] = keys->addrs.v6addrs.src;
+		*(struct in6_addr *)&req->src_ipaddr_mask[0] = masks->addrs.v6addrs.src;
+		*(struct in6_addr *)&req->dst_ipaddr[0] = keys->addrs.v6addrs.dst;
+		*(struct in6_addr *)&req->dst_ipaddr_mask[0] = masks->addrs.v6addrs.dst;
 	} else {
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) {
-			req->src_ipaddr[0] = keys->addrs.v4addrs.src;
-			req->src_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) {
-			req->dst_ipaddr[0] = keys->addrs.v4addrs.dst;
-			req->dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
-		}
+		req->src_ipaddr[0] = keys->addrs.v4addrs.src;
+		req->src_ipaddr_mask[0] = masks->addrs.v4addrs.src;
+		req->dst_ipaddr[0] = keys->addrs.v4addrs.dst;
+		req->dst_ipaddr_mask[0] = masks->addrs.v4addrs.dst;
 	}
 	if (keys->control.flags & FLOW_DIS_ENCAPSULATION) {
 		req->enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG);
@@ -5748,14 +5782,10 @@ int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
 			CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL;
 	}
 
-	if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_PORT) {
-		req->src_port = keys->ports.src;
-		req->src_port_mask = cpu_to_be16(0xffff);
-	}
-	if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_PORT) {
-		req->dst_port = keys->ports.dst;
-		req->dst_port_mask = cpu_to_be16(0xffff);
-	}
+	req->src_port = keys->ports.src;
+	req->src_port_mask = masks->ports.src;
+	req->dst_port = keys->ports.dst;
+	req->dst_port_mask = masks->ports.dst;
 
 	resp = hwrm_req_hold(bp, req);
 	rc = hwrm_req_send(bp, req);
@@ -13956,45 +13986,39 @@ int bnxt_insert_ntp_filter(struct bnxt *bp, struct bnxt_ntuple_filter *fltr,
 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
 			    struct bnxt_ntuple_filter *f2)
 {
+	struct bnxt_flow_masks *masks1 = &f1->fmasks;
+	struct bnxt_flow_masks *masks2 = &f2->fmasks;
 	struct flow_keys *keys1 = &f1->fkeys;
 	struct flow_keys *keys2 = &f2->fkeys;
 
-	if (f1->ntuple_flags != f2->ntuple_flags)
-		return false;
-
 	if (keys1->basic.n_proto != keys2->basic.n_proto ||
 	    keys1->basic.ip_proto != keys2->basic.ip_proto)
 		return false;
 
 	if (keys1->basic.n_proto == htons(ETH_P_IP)) {
-		if (((f1->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) &&
-		     keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src) ||
-		    ((f1->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) &&
-		     keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst))
+		if (keys1->addrs.v4addrs.src != keys2->addrs.v4addrs.src ||
+		    masks1->addrs.v4addrs.src != masks2->addrs.v4addrs.src ||
+		    keys1->addrs.v4addrs.dst != keys2->addrs.v4addrs.dst ||
+		    masks1->addrs.v4addrs.dst != masks2->addrs.v4addrs.dst)
 			return false;
 	} else {
-		if (((f1->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) &&
-		     memcmp(&keys1->addrs.v6addrs.src,
-			    &keys2->addrs.v6addrs.src,
-			    sizeof(keys1->addrs.v6addrs.src))) ||
-		    ((f1->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) &&
-		     memcmp(&keys1->addrs.v6addrs.dst,
-			    &keys2->addrs.v6addrs.dst,
-			    sizeof(keys1->addrs.v6addrs.dst))))
+		if (!ipv6_addr_equal(&keys1->addrs.v6addrs.src,
+				     &keys2->addrs.v6addrs.src) ||
+		    !ipv6_addr_equal(&masks1->addrs.v6addrs.src,
+				     &masks2->addrs.v6addrs.src) ||
+		    !ipv6_addr_equal(&keys1->addrs.v6addrs.dst,
+				     &keys2->addrs.v6addrs.dst) ||
+		    !ipv6_addr_equal(&masks1->addrs.v6addrs.dst,
+				     &masks2->addrs.v6addrs.dst))
 			return false;
 	}
 
-	if (((f1->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_PORT) &&
-	     keys1->ports.src != keys2->ports.src) ||
-	    ((f1->ntuple_flags & BNXT_NTUPLE_MATCH_DST_PORT) &&
-	     keys1->ports.dst != keys2->ports.dst))
-		return false;
-
-	if (keys1->control.flags == keys2->control.flags &&
-	    f1->l2_fltr == f2->l2_fltr)
-		return true;
-
-	return false;
+	return keys1->ports.src == keys2->ports.src &&
+	       masks1->ports.src == masks2->ports.src &&
+	       keys1->ports.dst == keys2->ports.dst &&
+	       masks1->ports.dst == masks2->ports.dst &&
+	       keys1->control.flags == keys2->control.flags &&
+	       f1->l2_fltr == f2->l2_fltr;
 }
 
 struct bnxt_ntuple_filter *
@@ -14059,10 +14083,13 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 		rc = -EPROTONOSUPPORT;
 		goto err_free;
 	}
-	if (fkeys->basic.n_proto == htons(ETH_P_IPV6) &&
-	    bp->hwrm_spec_code < 0x10601) {
-		rc = -EPROTONOSUPPORT;
-		goto err_free;
+	new_fltr->fmasks = BNXT_FLOW_IPV4_MASK_ALL;
+	if (fkeys->basic.n_proto == htons(ETH_P_IPV6)) {
+		if (bp->hwrm_spec_code < 0x10601) {
+			rc = -EPROTONOSUPPORT;
+			goto err_free;
+		}
+		new_fltr->fmasks = BNXT_FLOW_IPV6_MASK_ALL;
 	}
 	flags = fkeys->control.flags;
 	if (((flags & FLOW_DIS_ENCAPSULATION) &&
@@ -14070,9 +14097,7 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 		rc = -EPROTONOSUPPORT;
 		goto err_free;
 	}
-
 	new_fltr->l2_fltr = l2_fltr;
-	new_fltr->ntuple_flags = BNXT_NTUPLE_MATCH_ALL;
 
 	idx = bnxt_get_ntp_filter_idx(bp, fkeys, skb);
 	rcu_read_lock();
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 21721b8748bc..aae180fa63b7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1355,19 +1355,20 @@ struct bnxt_filter_base {
 	struct rcu_head         rcu;
 };
 
+struct bnxt_flow_masks {
+	struct flow_dissector_key_ports ports;
+	struct flow_dissector_key_addrs addrs;
+};
+
+extern const struct bnxt_flow_masks BNXT_FLOW_MASK_NONE;
+extern const struct bnxt_flow_masks BNXT_FLOW_IPV6_MASK_ALL;
+extern const struct bnxt_flow_masks BNXT_FLOW_IPV4_MASK_ALL;
+
 struct bnxt_ntuple_filter {
 	struct bnxt_filter_base	base;
 	struct flow_keys	fkeys;
+	struct bnxt_flow_masks	fmasks;
 	struct bnxt_l2_filter	*l2_fltr;
-	u32			ntuple_flags;
-#define BNXT_NTUPLE_MATCH_SRC_IP	1
-#define BNXT_NTUPLE_MATCH_DST_IP	2
-#define BNXT_NTUPLE_MATCH_SRC_PORT	4
-#define BNXT_NTUPLE_MATCH_DST_PORT	8
-#define BNXT_NTUPLE_MATCH_ALL		(BNXT_NTUPLE_MATCH_SRC_IP |	\
-					 BNXT_NTUPLE_MATCH_DST_IP |	\
-					 BNXT_NTUPLE_MATCH_SRC_PORT |	\
-					 BNXT_NTUPLE_MATCH_DST_PORT)
 	u32			flow_id;
 };
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 0165065c743f..408a086f62ae 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1080,6 +1080,7 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 		(struct ethtool_rx_flow_spec *)&cmd->fs;
 	struct bnxt_filter_base *fltr_base;
 	struct bnxt_ntuple_filter *fltr;
+	struct bnxt_flow_masks *fmasks;
 	struct flow_keys *fkeys;
 	int rc = -EINVAL;
 
@@ -1127,6 +1128,7 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 	fltr = container_of(fltr_base, struct bnxt_ntuple_filter, base);
 
 	fkeys = &fltr->fkeys;
+	fmasks = &fltr->fmasks;
 	if (fkeys->basic.n_proto == htons(ETH_P_IP)) {
 		if (fkeys->basic.ip_proto == IPPROTO_TCP)
 			fs->flow_type = TCP_V4_FLOW;
@@ -1135,22 +1137,14 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 		else
 			goto fltr_err;
 
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) {
-			fs->h_u.tcp_ip4_spec.ip4src = fkeys->addrs.v4addrs.src;
-			fs->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(~0);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) {
-			fs->h_u.tcp_ip4_spec.ip4dst = fkeys->addrs.v4addrs.dst;
-			fs->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(~0);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_PORT) {
-			fs->h_u.tcp_ip4_spec.psrc = fkeys->ports.src;
-			fs->m_u.tcp_ip4_spec.psrc = cpu_to_be16(~0);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_PORT) {
-			fs->h_u.tcp_ip4_spec.pdst = fkeys->ports.dst;
-			fs->m_u.tcp_ip4_spec.pdst = cpu_to_be16(~0);
-		}
+		fs->h_u.tcp_ip4_spec.ip4src = fkeys->addrs.v4addrs.src;
+		fs->m_u.tcp_ip4_spec.ip4src = fmasks->addrs.v4addrs.src;
+		fs->h_u.tcp_ip4_spec.ip4dst = fkeys->addrs.v4addrs.dst;
+		fs->m_u.tcp_ip4_spec.ip4dst = fmasks->addrs.v4addrs.dst;
+		fs->h_u.tcp_ip4_spec.psrc = fkeys->ports.src;
+		fs->m_u.tcp_ip4_spec.psrc = fmasks->ports.src;
+		fs->h_u.tcp_ip4_spec.pdst = fkeys->ports.dst;
+		fs->m_u.tcp_ip4_spec.pdst = fmasks->ports.dst;
 	} else {
 		if (fkeys->basic.ip_proto == IPPROTO_TCP)
 			fs->flow_type = TCP_V6_FLOW;
@@ -1159,24 +1153,18 @@ static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 		else
 			goto fltr_err;
 
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_IP) {
-			*(struct in6_addr *)&fs->h_u.tcp_ip6_spec.ip6src[0] =
-				fkeys->addrs.v6addrs.src;
-			bnxt_fill_ipv6_mask(fs->m_u.tcp_ip6_spec.ip6src);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_IP) {
-			*(struct in6_addr *)&fs->h_u.tcp_ip6_spec.ip6dst[0] =
-				fkeys->addrs.v6addrs.dst;
-			bnxt_fill_ipv6_mask(fs->m_u.tcp_ip6_spec.ip6dst);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_SRC_PORT) {
-			fs->h_u.tcp_ip6_spec.psrc = fkeys->ports.src;
-			fs->m_u.tcp_ip6_spec.psrc = cpu_to_be16(~0);
-		}
-		if (fltr->ntuple_flags & BNXT_NTUPLE_MATCH_DST_PORT) {
-			fs->h_u.tcp_ip6_spec.pdst = fkeys->ports.dst;
-			fs->m_u.tcp_ip6_spec.pdst = cpu_to_be16(~0);
-		}
+		*(struct in6_addr *)&fs->h_u.tcp_ip6_spec.ip6src[0] =
+			fkeys->addrs.v6addrs.src;
+		*(struct in6_addr *)&fs->m_u.tcp_ip6_spec.ip6src[0] =
+			fmasks->addrs.v6addrs.src;
+		*(struct in6_addr *)&fs->h_u.tcp_ip6_spec.ip6dst[0] =
+			fkeys->addrs.v6addrs.dst;
+		*(struct in6_addr *)&fs->m_u.tcp_ip6_spec.ip6dst[0] =
+			fmasks->addrs.v6addrs.dst;
+		fs->h_u.tcp_ip6_spec.psrc = fkeys->ports.src;
+		fs->m_u.tcp_ip6_spec.psrc = fmasks->ports.src;
+		fs->h_u.tcp_ip6_spec.pdst = fkeys->ports.dst;
+		fs->m_u.tcp_ip6_spec.pdst = fmasks->ports.dst;
 	}
 
 	fs->ring_cookie = fltr->base.rxq;
@@ -1240,19 +1228,6 @@ static int bnxt_add_l2_cls_rule(struct bnxt *bp,
 	return rc;
 }
 
-#define IPV4_ALL_MASK		((__force __be32)~0)
-#define L4_PORT_ALL_MASK	((__force __be16)~0)
-
-static bool ipv6_mask_is_full(__be32 mask[4])
-{
-	return (mask[0] & mask[1] & mask[2] & mask[3]) == IPV4_ALL_MASK;
-}
-
-static bool ipv6_mask_is_zero(__be32 mask[4])
-{
-	return !(mask[0] | mask[1] | mask[2] | mask[3]);
-}
-
 static int bnxt_add_ntuple_cls_rule(struct bnxt *bp,
 				    struct ethtool_rx_flow_spec *fs)
 {
@@ -1260,6 +1235,7 @@ static int bnxt_add_ntuple_cls_rule(struct bnxt *bp,
 	u32 ring = ethtool_get_flow_spec_ring(fs->ring_cookie);
 	struct bnxt_ntuple_filter *new_fltr, *fltr;
 	struct bnxt_l2_filter *l2_fltr;
+	struct bnxt_flow_masks *fmasks;
 	u32 flow_type = fs->flow_type;
 	struct flow_keys *fkeys;
 	u32 idx;
@@ -1278,6 +1254,7 @@ static int bnxt_add_ntuple_cls_rule(struct bnxt *bp,
 	l2_fltr = bp->vnic_info[0].l2_filters[0];
 	atomic_inc(&l2_fltr->refcnt);
 	new_fltr->l2_fltr = l2_fltr;
+	fmasks = &new_fltr->fmasks;
 	fkeys = &new_fltr->fkeys;
 
 	rc = -EOPNOTSUPP;
@@ -1291,32 +1268,14 @@ static int bnxt_add_ntuple_cls_rule(struct bnxt *bp,
 		if (flow_type == UDP_V4_FLOW)
 			fkeys->basic.ip_proto = IPPROTO_UDP;
 		fkeys->basic.n_proto = htons(ETH_P_IP);
-
-		if (ip_mask->ip4src == IPV4_ALL_MASK) {
-			fkeys->addrs.v4addrs.src = ip_spec->ip4src;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_SRC_IP;
-		} else if (ip_mask->ip4src) {
-			goto ntuple_err;
-		}
-		if (ip_mask->ip4dst == IPV4_ALL_MASK) {
-			fkeys->addrs.v4addrs.dst = ip_spec->ip4dst;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_DST_IP;
-		} else if (ip_mask->ip4dst) {
-			goto ntuple_err;
-		}
-
-		if (ip_mask->psrc == L4_PORT_ALL_MASK) {
-			fkeys->ports.src = ip_spec->psrc;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_SRC_PORT;
-		} else if (ip_mask->psrc) {
-			goto ntuple_err;
-		}
-		if (ip_mask->pdst == L4_PORT_ALL_MASK) {
-			fkeys->ports.dst = ip_spec->pdst;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_DST_PORT;
-		} else if (ip_mask->pdst) {
-			goto ntuple_err;
-		}
+		fkeys->addrs.v4addrs.src = ip_spec->ip4src;
+		fmasks->addrs.v4addrs.src = ip_mask->ip4src;
+		fkeys->addrs.v4addrs.dst = ip_spec->ip4dst;
+		fmasks->addrs.v4addrs.dst = ip_mask->ip4dst;
+		fkeys->ports.src = ip_spec->psrc;
+		fmasks->ports.src = ip_mask->psrc;
+		fkeys->ports.dst = ip_spec->pdst;
+		fmasks->ports.dst = ip_mask->pdst;
 		break;
 	}
 	case TCP_V6_FLOW:
@@ -1329,40 +1288,21 @@ static int bnxt_add_ntuple_cls_rule(struct bnxt *bp,
 			fkeys->basic.ip_proto = IPPROTO_UDP;
 		fkeys->basic.n_proto = htons(ETH_P_IPV6);
 
-		if (ipv6_mask_is_full(ip_mask->ip6src)) {
-			fkeys->addrs.v6addrs.src =
-				*(struct in6_addr *)&ip_spec->ip6src;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_SRC_IP;
-		} else if (!ipv6_mask_is_zero(ip_mask->ip6src)) {
-			goto ntuple_err;
-		}
-		if (ipv6_mask_is_full(ip_mask->ip6dst)) {
-			fkeys->addrs.v6addrs.dst =
-				*(struct in6_addr *)&ip_spec->ip6dst;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_DST_IP;
-		} else if (!ipv6_mask_is_zero(ip_mask->ip6dst)) {
-			goto ntuple_err;
-		}
-
-		if (ip_mask->psrc == L4_PORT_ALL_MASK) {
-			fkeys->ports.src = ip_spec->psrc;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_SRC_PORT;
-		} else if (ip_mask->psrc) {
-			goto ntuple_err;
-		}
-		if (ip_mask->pdst == L4_PORT_ALL_MASK) {
-			fkeys->ports.dst = ip_spec->pdst;
-			new_fltr->ntuple_flags |= BNXT_NTUPLE_MATCH_DST_PORT;
-		} else if (ip_mask->pdst) {
-			goto ntuple_err;
-		}
+		fkeys->addrs.v6addrs.src = *(struct in6_addr *)&ip_spec->ip6src;
+		fmasks->addrs.v6addrs.src = *(struct in6_addr *)&ip_mask->ip6src;
+		fkeys->addrs.v6addrs.dst = *(struct in6_addr *)&ip_spec->ip6dst;
+		fmasks->addrs.v6addrs.dst = *(struct in6_addr *)&ip_mask->ip6dst;
+		fkeys->ports.src = ip_spec->psrc;
+		fmasks->ports.src = ip_mask->psrc;
+		fkeys->ports.dst = ip_spec->pdst;
+		fmasks->ports.dst = ip_mask->pdst;
 		break;
 	}
 	default:
 		rc = -EOPNOTSUPP;
 		goto ntuple_err;
 	}
-	if (!new_fltr->ntuple_flags)
+	if (!memcmp(&BNXT_FLOW_MASK_NONE, fmasks, sizeof(*fmasks)))
 		goto ntuple_err;
 
 	idx = bnxt_get_ntp_filter_idx(bp, fkeys, NULL);