[PATCH 2/2] common/cnxk: fix VLAN check for inner header

[Harman Kalra]

Adding the has vlan check in inner headers i.e in LF layer. If
has_vlan is 0 it should be masked out while installing flow rule.

Fixes: c34ea71b878d ("common/cnxk: add NPC parsing API")
Cc: stable at dpdk.org

Signed-off-by: Harman Kalra <hkalra at marvell.com>
---
 drivers/common/cnxk/roc_npc_parse.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/common/cnxk/roc_npc_parse.c b/drivers/common/cnxk/roc_npc_parse.c
index 9ceb707ebb..571d6b8e5d 100644
--- a/drivers/common/cnxk/roc_npc_parse.c
+++ b/drivers/common/cnxk/roc_npc_parse.c
@@ -1097,6 +1097,7 @@ npc_parse_lf(struct npc_parse_state *pst)
 {
 	const struct roc_npc_item_info *pattern, *last_pattern;
 	char hw_mask[NPC_MAX_EXTRACT_HW_LEN];
+	const struct roc_npc_flow_item_eth *eth_item;
 	struct npc_parse_item_info info;
 	int lid, lt, lflags;
 	int nr_vlans = 0;
@@ -1113,10 +1114,12 @@ npc_parse_lf(struct npc_parse_state *pst)
 	lt = NPC_LT_LF_TU_ETHER;
 	lflags = 0;
 
+	eth_item = pst->pattern->spec;
+
 	/* No match support for vlan tags */
 	info.def_mask = NULL;
 	info.hw_mask = NULL;
-	info.len = pst->pattern->size;
+	info.len = sizeof(eth_item->hdr);
 	info.spec = NULL;
 	info.mask = NULL;
 	info.hw_hdr_len = 0;
@@ -1147,12 +1150,15 @@ npc_parse_lf(struct npc_parse_state *pst)
 	}
 
 	info.hw_mask = &hw_mask;
-	info.len = pst->pattern->size;
+	info.len = sizeof(eth_item->hdr);
 	info.hw_hdr_len = 0;
 	npc_get_hw_supp_mask(pst, &info, lid, lt);
 	info.spec = NULL;
 	info.mask = NULL;
 
+	if (eth_item && eth_item->has_vlan)
+		pst->set_vlan_ltype_mask = true;
+
 	rc = npc_parse_item_basic(pst->pattern, &info);
 	if (rc != 0)
 		return rc;
-- 
2.18.0