[PATCH v1] net/iavf: fix pattern check for flow director parser

[Steve Yang <stevex.yang@intel.com>]

FDIR rules with masks are not supported in current code. Thus add
pattern check for IPv4/UDP/TCP/SCTP addr/port to terminate the FDIR
programming stage.

Fixes: d5eb3e600d9e ("net/iavf: support flow director basic rule")
Cc: stable@dpdk.org

Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
 drivers/net/iavf/iavf_fdir.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/net/iavf/iavf_fdir.c b/drivers/net/iavf/iavf_fdir.c
index 2e6b3a9097..a397047fdb 100644
--- a/drivers/net/iavf/iavf_fdir.c
+++ b/drivers/net/iavf/iavf_fdir.c
@@ -932,6 +932,14 @@ iavf_fdir_parse_pattern(__rte_unused struct iavf_adapter *ad,
 				return -rte_errno;
 			}
 
+			/* Mask for IPv4 src/dst addrs not supported */
+			if (ipv4_mask->hdr.src_addr &&
+				ipv4_mask->hdr.src_addr != UINT32_MAX)
+				return -rte_errno;
+			if (ipv4_mask->hdr.dst_addr &&
+				ipv4_mask->hdr.dst_addr != UINT32_MAX)
+				return -rte_errno;
+
 			if (ipv4_mask->hdr.type_of_service ==
 			    UINT8_MAX) {
 				input_set |= IAVF_INSET_IPV4_TOS;
@@ -1122,6 +1130,14 @@ iavf_fdir_parse_pattern(__rte_unused struct iavf_adapter *ad,
 					return -rte_errno;
 				}
 
+				/* Mask for UDP src/dst ports not supported */
+				if (udp_mask->hdr.src_port &&
+					udp_mask->hdr.src_port != UINT16_MAX)
+					return -rte_errno;
+				if (udp_mask->hdr.dst_port &&
+					udp_mask->hdr.dst_port != UINT16_MAX)
+					return -rte_errno;
+
 				if (udp_mask->hdr.src_port == UINT16_MAX) {
 					input_set |= IAVF_INSET_UDP_SRC_PORT;
 					VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, UDP, SRC_PORT);
@@ -1171,6 +1187,14 @@ iavf_fdir_parse_pattern(__rte_unused struct iavf_adapter *ad,
 					return -rte_errno;
 				}
 
+				/* Mask for TCP src/dst ports not supported */
+				if (tcp_mask->hdr.src_port &&
+					tcp_mask->hdr.src_port != UINT16_MAX)
+					return -rte_errno;
+				if (tcp_mask->hdr.dst_port &&
+					tcp_mask->hdr.dst_port != UINT16_MAX)
+					return -rte_errno;
+
 				if (tcp_mask->hdr.src_port == UINT16_MAX) {
 					input_set |= IAVF_INSET_TCP_SRC_PORT;
 					VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, TCP, SRC_PORT);
@@ -1214,6 +1238,14 @@ iavf_fdir_parse_pattern(__rte_unused struct iavf_adapter *ad,
 					return -rte_errno;
 				}
 
+				/* Mask for SCTP src/dst ports not supported */
+				if (sctp_mask->hdr.src_port &&
+					sctp_mask->hdr.src_port != UINT16_MAX)
+					return -rte_errno;
+				if (sctp_mask->hdr.dst_port &&
+					sctp_mask->hdr.dst_port != UINT16_MAX)
+					return -rte_errno;
+
 				if (sctp_mask->hdr.src_port == UINT16_MAX) {
 					input_set |= IAVF_INSET_SCTP_SRC_PORT;
 					VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, SCTP, SRC_PORT);
-- 
2.25.1