[dpdk-stable] [PATCH] net/cxgbe: accept VLAN flow items without ethertype

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

From: Karra Satwik <kaara.satwik@chelsio.com>

When apps pass the RTE_FLOW_ITEM_TYPE_VLAN without setting the
ethertype field in RTE_FLOW_ITEM_TYPE_ETH, then assume 0x8100
VLAN by default and don't reject the rule.

Fixes: 55f003d8884c ("net/cxgbe: support flow API for matching QinQ VLAN")
Cc: stable@dpdk.org

Signed-off-by: Karra Satwik <kaara.satwik@chelsio.com>
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
---
 drivers/net/cxgbe/cxgbe_flow.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/net/cxgbe/cxgbe_flow.c b/drivers/net/cxgbe/cxgbe_flow.c
index f7c4f3696..520a5a5c9 100644
--- a/drivers/net/cxgbe/cxgbe_flow.c
+++ b/drivers/net/cxgbe/cxgbe_flow.c
@@ -245,11 +245,6 @@ ch_rte_parsetype_vlan(const void *dmask, const struct rte_flow_item *item,
 	/* If user has not given any mask, then use chelsio supported mask. */
 	mask = umask ? umask : (const struct rte_flow_item_vlan *)dmask;
 
-	if (!fs->mask.ethtype)
-		return rte_flow_error_set(e, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
-					  item,
-					  "Can't parse VLAN item without knowing ethertype");
-
 	/* If ethertype is already set and is not VLAN (0x8100) or
 	 * QINQ(0x88A8), then don't proceed further. Otherwise,
 	 * reset the outer ethertype, so that it can be replaced by
@@ -275,7 +270,7 @@ ch_rte_parsetype_vlan(const void *dmask, const struct rte_flow_item *item,
 			fs->mask.ethtype = 0;
 			fs->val.ethtype = 0;
 		}
-	} else if (fs->val.ethtype == RTE_ETHER_TYPE_VLAN) {
+	} else {
 		CXGBE_FILL_FS(1, 1, ivlan_vld);
 		if (spec) {
 			if (spec->tci || (umask && umask->tci))
-- 
2.24.0