[PATCH v2] net/ice: fix the judgment order of buffer split

[Yuan Wang]

proto_hdr defines a bit mask of the protocol sequence as RTE_PTYPE_*,
The last RTE_PTYPE* in the mask indicates the split position.

To get the split position from proto_hdr, the order of judgement should
be from inner to outer layer, so for tunneling packets the tunnel header
should be placed at the end of the judgement condition.

Fixes: 629dad3ef325 ("net/ice: support buffer split in scalar Rx")

Signed-off-by: Yuan Wang <yuanx.wang at intel.com>

---
v2: fix typo

---
 drivers/net/ice/ice_rxtx.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 953ff217df..7a2d5829c0 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -324,13 +324,6 @@ ice_program_hw_rx_queue(struct ice_rx_queue *rxq)
 			goto set_hsplit_finish;
 		}
 
-		switch (proto_hdr & RTE_PTYPE_TUNNEL_MASK) {
-		case RTE_PTYPE_TUNNEL_GRENAT:
-			rx_ctx.dtype = ICE_RX_DTYPE_HEADER_SPLIT;
-			rx_ctx.hsplit_1 = ICE_RLAN_RX_HSPLIT_1_SPLIT_ALWAYS;
-			goto set_hsplit_finish;
-		}
-
 		switch (proto_hdr & RTE_PTYPE_INNER_L4_MASK) {
 		case RTE_PTYPE_INNER_L4_TCP:
 		case RTE_PTYPE_INNER_L4_UDP:
@@ -358,6 +351,13 @@ ice_program_hw_rx_queue(struct ice_rx_queue *rxq)
 			goto set_hsplit_finish;
 		}
 
+		switch (proto_hdr & RTE_PTYPE_TUNNEL_MASK) {
+		case RTE_PTYPE_TUNNEL_GRENAT:
+			rx_ctx.dtype = ICE_RX_DTYPE_HEADER_SPLIT;
+			rx_ctx.hsplit_1 = ICE_RLAN_RX_HSPLIT_1_SPLIT_ALWAYS;
+			goto set_hsplit_finish;
+		}
+
 		PMD_DRV_LOG(ERR, "Buffer split protocol is not supported");
 		return -EINVAL;
 
-- 
2.25.1