[PATCH] net/ixgbe: add support 82599ES SCTP packet drop action

[Wei Zhao <wei.zhao1@intel.com>]

82599ES can support SCTP packet drop action, but the
configration is different from TCP or UDP packet, so
it need to rework some code FDIR related code to adapt
drop action rule of SCTP packet.

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
---
 drivers/net/ixgbe/ixgbe_flow.c | 48 ++++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 5b70e34..01425b3 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -1901,30 +1901,22 @@ ixgbe_parse_fdir_filter_normal(const struct rte_flow_attr *attr,
 				item, "Not supported last point for range");
 			return -rte_errno;
 		}
-		/**
-		 * Only care about src & dst ports,
-		 * others should be masked.
-		 */
-		if (!item->mask) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
-		}
-		rule->b_mask = TRUE;
-		sctp_mask =
-			(const struct rte_flow_item_sctp *)item->mask;
-		if (sctp_mask->hdr.tag ||
-		    sctp_mask->hdr.cksum) {
-			memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
-			rte_flow_error_set(error, EINVAL,
-				RTE_FLOW_ERROR_TYPE_ITEM,
-				item, "Not supported by fdir filter");
-			return -rte_errno;
+
+		if (item->mask) {
+			rule->b_mask = TRUE;
+			sctp_mask =
+				(const struct rte_flow_item_sctp *)item->mask;
+			if (sctp_mask->hdr.tag ||
+				sctp_mask->hdr.cksum) {
+				memset(rule, 0, sizeof(struct ixgbe_fdir_rule));
+				rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_ITEM,
+					item, "Not supported by fdir filter");
+				return -rte_errno;
+			}
+			rule->mask.src_port_mask = sctp_mask->hdr.src_port;
+			rule->mask.dst_port_mask = sctp_mask->hdr.dst_port;
 		}
-		rule->mask.src_port_mask = sctp_mask->hdr.src_port;
-		rule->mask.dst_port_mask = sctp_mask->hdr.dst_port;
 
 		if (item->spec) {
 			rule->b_spec = TRUE;
@@ -2541,7 +2533,17 @@ ixgbe_parse_fdir_filter(struct rte_eth_dev *dev,
 	ret = ixgbe_parse_fdir_filter_tunnel(attr, pattern,
 					actions, rule, error);
 
+	if (ret)
+		return ret;
+
 step_next:
+
+	if (hw->mac.type != ixgbe_mac_82599EB &&
+		rule->fdirflags == IXGBE_FDIRCMD_DROP &&
+		(rule->mask.src_port_mask != 0 ||
+		rule->mask.dst_port_mask != 0))
+		return -ENOTSUP;
+
 	if (fdir_mode == RTE_FDIR_MODE_NONE ||
 	    fdir_mode != rule->mode)
 		return -ENOTSUP;
-- 
2.9.3