diff mbox series

[v3] net/mlx5: fix matching for UDP tunnels with verbs

Message ID 20200506064850.772-1-rasland@mellanox.com (mailing list archive)
State Superseded, archived
Delegated to: Raslan Darawsheh
Headers
Series [v3] net/mlx5: fix matching for UDP tunnels with verbs |

Checks

Context Check Description
ci/checkpatch warning coding style issues
ci/travis-robot warning Travis build: failed
ci/Intel-compilation fail Compilation issues

Commit Message

Raslan Darawsheh May 6, 2020, 6:48 a.m. UTC 
  When creating flow rule with zero specs it will cause
matching all UDP packets like following:
 eth / ipv4 / udp / vxlan / end
Such rule will match all udp packets.

This change the behavior to match the dv flow engine
which will automatically set the match on relative
outer UDP port if the user didn't specify any.

Fixes: 84c406e74524 ("net/mlx5: add flow translate function")
Cc: stable@dpdk.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
v2: fixed checkpatch issues
v3: handled ITEM_VOID after udp item.
---
 drivers/net/mlx5/mlx5_flow_verbs.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/mlx5/mlx5_flow_verbs.c b/drivers/net/mlx5/mlx5_flow_verbs.c
index 7efd97f54..ac29c5d98 100644
--- a/drivers/net/mlx5/mlx5_flow_verbs.c
+++ b/drivers/net/mlx5/mlx5_flow_verbs.c
@@ -680,6 +680,28 @@  flow_verbs_translate_item_udp(struct mlx5_flow *dev_flow,
 		udp.val.src_port &= udp.mask.src_port;
 		udp.val.dst_port &= udp.mask.dst_port;
 	}
+	item ++;
+	while (item != NULL && (item->type == RTE_FLOW_ITEM_TYPE_VOID))
+		item ++;
+	if (item != NULL && !(udp.val.dst_port & udp.mask.dst_port)) {
+		switch ((item)->type) {
+		case RTE_FLOW_ITEM_TYPE_VXLAN:
+			udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN);
+			udp.mask.dst_port = 0xffff;
+			break;
+		case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
+			udp.val.dst_port = htons(MLX5_UDP_PORT_VXLAN_GPE);
+			udp.mask.dst_port = 0xffff;
+			break;
+		case RTE_FLOW_ITEM_TYPE_MPLS:
+			udp.val.dst_port = htons(MLX5_UDP_PORT_MPLS);
+			udp.mask.dst_port = 0xffff;
+			break;
+		default:
+			break;
+		}
+	}
+
 	flow_verbs_spec_add(&dev_flow->verbs, &udp, size);
 }