[PATCH] net/ice/base: enable FDIR support for IPV6_NETX_PROTO

[Jie Wang <jie1x.wang@intel.com>]

To support the new DDP and be compatible with the old version DDP
file, API function 'check_ddp_support_proto_id' is added to detect
if the required protocol ID is supported by the current DDP file.

Add new protocol ID IPV6_NETX_PROTO support for PF FDIR if current
DDP is new DDP and keep behavior if it is the old version DDP.

Signed-off-by: Jie Wang <jie1x.wang@intel.com>
---
 drivers/net/ice/base/ice_flow.c          | 16 +++++++++-
 drivers/net/ice/base/ice_parser.c        | 40 ++++++++++++++++++++++++
 drivers/net/ice/base/ice_parser.h        |  1 +
 drivers/net/ice/base/ice_protocol_type.h |  1 +
 4 files changed, 57 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/base/ice_flow.c b/drivers/net/ice/base/ice_flow.c
index bcbb9b12c4..054897c1e7 100644
--- a/drivers/net/ice/base/ice_flow.c
+++ b/drivers/net/ice/base/ice_flow.c
@@ -1370,6 +1370,7 @@ ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
 	u16 sib_mask = 0;
 	u16 mask;
 	u16 off;
+	bool exist;
 
 	flds = params->prof->segs[seg].fields;
 
@@ -1410,7 +1411,16 @@ ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
 		break;
 	case ICE_FLOW_FIELD_IDX_IPV6_TTL:
 	case ICE_FLOW_FIELD_IDX_IPV6_PROT:
-		prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
+		exist = check_ddp_support_proto_id(hw,
+						   ICE_PROT_IPV6_NEXT_PROTO);
+		if (!exist)
+			prot_id = seg == 0 ?
+				  ICE_PROT_IPV6_OF_OR_S :
+				  ICE_PROT_IPV6_IL;
+		else
+			prot_id = seg == 0 ?
+				  ICE_PROT_IPV6_NEXT_PROTO :
+				  ICE_PROT_IPV6_IL;
 
 		/* TTL and PROT share the same extraction seq. entry.
 		 * Each is considered a sibling to the other in terms of sharing
@@ -1543,6 +1553,10 @@ ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
 	flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits);
 	flds[fld].xtrct.idx = params->es_cnt;
 	flds[fld].xtrct.mask = ice_flds_info[fld].mask;
+	if (prot_id == ICE_PROT_IPV6_NEXT_PROTO) {
+		flds[fld].xtrct.off = 0;
+		flds[fld].xtrct.disp = 0;
+	}
 
 	/* Adjust the next field-entry index after accommodating the number of
 	 * entries this field consumes
diff --git a/drivers/net/ice/base/ice_parser.c b/drivers/net/ice/base/ice_parser.c
index 9b106baff0..7340ca0590 100644
--- a/drivers/net/ice/base/ice_parser.c
+++ b/drivers/net/ice/base/ice_parser.c
@@ -552,3 +552,43 @@ void ice_parser_profile_dump(struct ice_hw *hw, struct ice_parser_profile *prof)
 	ice_info(hw, "flags = 0x%04x\n", prof->flags);
 	ice_info(hw, "flags_msk = 0x%04x\n", prof->flags_msk);
 }
+
+/**
+ * check_ddp_support_proto_id - check DDP package file support protocol ID
+ * @hw: pointer to the HW struct
+ * @proto_id: protocol ID value
+ *
+ * This function maintains the compatibility of the program process by checking
+ * whether the current DDP file supports the required protocol ID.
+ */
+bool check_ddp_support_proto_id(struct ice_hw *hw, enum ice_prot_id proto_id)
+{
+	struct ice_proto_grp_item *proto_grp_table;
+	struct ice_proto_grp_item *proto_grp;
+	bool exist = false;
+	u16 idx = 0;
+	u16 i;
+
+	proto_grp_table = ice_proto_grp_table_get(hw);
+	if (!proto_grp_table)
+		goto exit;
+
+	do {
+		proto_grp = &proto_grp_table[idx];
+		if (idx != proto_grp->idx)
+			break;
+
+		for (i = 0; i < ICE_PROTO_COUNT_PER_GRP; i++) {
+			if (proto_grp->po[i].proto_id == proto_id) {
+				exist = true;
+				goto exit;
+			}
+		}
+
+		idx++;
+	} while (idx);
+
+exit:
+	ice_free(hw, proto_grp_table);
+	return exist;
+}
diff --git a/drivers/net/ice/base/ice_parser.h b/drivers/net/ice/base/ice_parser.h
index 816aea782a..161061498a 100644
--- a/drivers/net/ice/base/ice_parser.h
+++ b/drivers/net/ice/base/ice_parser.h
@@ -110,4 +110,5 @@ enum ice_status ice_parser_profile_init(struct ice_parser_result *rslt,
 					struct ice_parser_profile *prof);
 void ice_parser_profile_dump(struct ice_hw *hw,
 			     struct ice_parser_profile *prof);
+bool check_ddp_support_proto_id(struct ice_hw *hw, enum ice_prot_id proto_id);
 #endif /* _ICE_PARSER_H_ */
diff --git a/drivers/net/ice/base/ice_protocol_type.h b/drivers/net/ice/base/ice_protocol_type.h
index 0e6e5990be..83867418c6 100644
--- a/drivers/net/ice/base/ice_protocol_type.h
+++ b/drivers/net/ice/base/ice_protocol_type.h
@@ -163,6 +163,7 @@ enum ice_prot_id {
 	ICE_PROT_IPV6_OF_OR_S	= 40,
 	ICE_PROT_IPV6_IL	= 41,
 	ICE_PROT_IPV6_IL_IL	= 42,
+	ICE_PROT_IPV6_NEXT_PROTO = 43,
 	ICE_PROT_IPV6_FRAG	= 47,
 	ICE_PROT_TCP_IL		= 49,
 	ICE_PROT_UDP_OF		= 52,
-- 
2.25.1