[dpdk-dev] [PATCH] net/mlx: fix IPv4 and IPv6 packet type

[Olivier Matz <olivier.matz@6wind.com>]

From: Matthieu Ternisien d'Ouville <matthieu.tdo@6wind.com>

Mellanox PMDs do not differentiate IP header with or without options, so
the advertised packet type for an IPv4 should not be RTE_PTYPE_L3_IPV4,
which explicitly means "does not contain any header option".

Change the driver to set
RTE_PTYPE(_INNER)_L3_IPV4_EXT_UNKNOWN or
RTE_PTYPE(_INNER)_L3_IPV6_EXT_UNKNOWN flags for all IPv4/IPv6 packets
received.

Fixes: 429df3803a16 ("mlx4: replace some offload flags with packet type")
Fixes: 67fa62bc672d ("mlx5: support checksum offload")

CC: stable@dpdk.org
Signed-off-by: Samuel Gauthier <samuel.gauthier@6wind.com>
Signed-off-by: Matthieu Ternisien d'Ouville <matthieu.tdo@6wind.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 drivers/net/mlx4/mlx4.c      | 18 ++++++++++++------
 drivers/net/mlx5/mlx5_rxtx.c | 12 ++++++------
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 941176c..79efaaa 100644
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -2961,19 +2961,25 @@ rxq_cq_to_pkt_type(uint32_t flags)
 	if (flags & IBV_EXP_CQ_RX_TUNNEL_PACKET)
 		pkt_type =
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_OUTER_IPV4_PACKET, RTE_PTYPE_L3_IPV4) |
+				  IBV_EXP_CQ_RX_OUTER_IPV4_PACKET,
+				  RTE_PTYPE_L3_IPV4_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_OUTER_IPV6_PACKET, RTE_PTYPE_L3_IPV6) |
+				  IBV_EXP_CQ_RX_OUTER_IPV6_PACKET,
+				  RTE_PTYPE_L3_IPV6_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_IPV4_PACKET, RTE_PTYPE_INNER_L3_IPV4) |
+				  IBV_EXP_CQ_RX_IPV4_PACKET,
+				  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_IPV6_PACKET, RTE_PTYPE_INNER_L3_IPV6);
+				  IBV_EXP_CQ_RX_IPV6_PACKET,
+				  RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN);
 	else
 		pkt_type =
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_IPV4_PACKET, RTE_PTYPE_L3_IPV4) |
+				  IBV_EXP_CQ_RX_IPV4_PACKET,
+				  RTE_PTYPE_L3_IPV4_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
-			          IBV_EXP_CQ_RX_IPV6_PACKET, RTE_PTYPE_L3_IPV6);
+				  IBV_EXP_CQ_RX_IPV6_PACKET,
+				  RTE_PTYPE_L3_IPV6_EXT_UNKNOWN);
 	return pkt_type;
 }
 
diff --git a/drivers/net/mlx5/mlx5_rxtx.c b/drivers/net/mlx5/mlx5_rxtx.c
index e0ee2f2..9415720 100644
--- a/drivers/net/mlx5/mlx5_rxtx.c
+++ b/drivers/net/mlx5/mlx5_rxtx.c
@@ -1112,24 +1112,24 @@ rxq_cq_to_pkt_type(volatile struct mlx5_cqe *cqe)
 		pkt_type =
 			TRANSPOSE(flags,
 				  MLX5_CQE_RX_OUTER_IPV4_PACKET,
-				  RTE_PTYPE_L3_IPV4) |
+				  RTE_PTYPE_L3_IPV4_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
 				  MLX5_CQE_RX_OUTER_IPV6_PACKET,
-				  RTE_PTYPE_L3_IPV6) |
+				  RTE_PTYPE_L3_IPV6_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
 				  MLX5_CQE_RX_IPV4_PACKET,
-				  RTE_PTYPE_INNER_L3_IPV4) |
+				  RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
 				  MLX5_CQE_RX_IPV6_PACKET,
-				  RTE_PTYPE_INNER_L3_IPV6);
+				  RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN);
 	else
 		pkt_type =
 			TRANSPOSE(flags,
 				  MLX5_CQE_L3_HDR_TYPE_IPV6,
-				  RTE_PTYPE_L3_IPV6) |
+				  RTE_PTYPE_L3_IPV6_EXT_UNKNOWN) |
 			TRANSPOSE(flags,
 				  MLX5_CQE_L3_HDR_TYPE_IPV4,
-				  RTE_PTYPE_L3_IPV4);
+				  RTE_PTYPE_L3_IPV4_EXT_UNKNOWN);
 	return pkt_type;
 }
 
-- 
2.8.1