Signed-off-by: Nelio Laranjeiro <nelio.laranje...@6wind.com>
---
drivers/net/mlx5/mlx5_flow.c | 77 +++++++++++++++++++++++++++++++++++-
1 file changed, 76 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 636aaabe8..7aa4e6ed5 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -55,6 +55,7 @@ extern const struct eth_dev_ops mlx5_dev_ops_isolate;
#define MLX5_FLOW_LAYER_VXLAN (1u << 12)
#define MLX5_FLOW_LAYER_VXLAN_GPE (1u << 13)
#define MLX5_FLOW_LAYER_GRE (1u << 14)
+#define MLX5_FLOW_LAYER_MPLS (1u << 15)
/* Outer Masks. */
#define MLX5_FLOW_LAYER_OUTER_L3 \
@@ -68,7 +69,7 @@ extern const struct eth_dev_ops mlx5_dev_ops_isolate;
/* Tunnel masks. */
#define MLX5_FLOW_LAYER_TUNNEL \
(MLX5_FLOW_LAYER_VXLAN | MLX5_FLOW_LAYER_VXLAN_GPE | \
- MLX5_FLOW_LAYER_GRE)
+ MLX5_FLOW_LAYER_GRE | MLX5_FLOW_LAYER_MPLS)
/* Inner Masks. */
#define MLX5_FLOW_LAYER_INNER_L3 \
@@ -1589,6 +1590,77 @@ mlx5_flow_item_gre(const struct rte_flow_item *item,
return size;
}
+/**
+ * Validate MPLS layer and possibly create the Verbs specification.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param item[in]
+ * Item specification.
+ * @param flow[in, out]
+ * Pointer to flow structure.
+ * @param flow_size[in]
+ * Size in bytes of the available space for to store the flow information.
+ * @param error
+ * Pointer to error structure.
+ *
+ * @return
+ * size in bytes necessary for the conversion, a negative errno value
+ * otherwise and rte_errno is set.
+ */
+static int
+mlx5_flow_item_mpls(const struct rte_flow_item *item __rte_unused,
+ struct rte_flow *flow __rte_unused,
+ const size_t flow_size __rte_unused,
+ struct rte_flow_error *error)
+{
+#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
+ const struct rte_flow_item_mpls *spec = item->spec;
+ const struct rte_flow_item_mpls *mask = item->mask;
+ unsigned int size = sizeof(struct ibv_flow_spec_mpls);
+ struct ibv_flow_spec_mpls mpls = {
+ .type = IBV_FLOW_SPEC_MPLS,
+ .size = size,
+ };
+ const uint32_t layers = mlx5_flow_layers(flow);
+ int ret;
+
+ if (layers & MLX5_FLOW_LAYER_TUNNEL)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "a tunnel is already"
+ " present");
+ if (!mask)
+ mask = &rte_flow_item_mpls_mask;
+ ret = mlx5_flow_item_validate
+ (item, (const uint8_t *)mask,
+ (const uint8_t *)&rte_flow_item_mpls_mask,
+ sizeof(struct rte_flow_item_mpls), error);
+ if (ret < 0)
+ return ret;
+ if (spec) {
+ memcpy(&mpls.val.label, spec, sizeof(mpls.val.label));
+ memcpy(&mpls.mask.label, mask, sizeof(mpls.mask.label));
+ /* Remove unwanted bits from values. */
+ mpls.val.label &= mpls.mask.label;
+ }
+ if (size <= flow_size)
+ mlx5_flow_spec_verbs_add(flow, &mpls, size);
+ mlx5_flow_layers_update(flow, MLX5_FLOW_LAYER_MPLS);
+ if (layers & MLX5_FLOW_LAYER_OUTER_L4_UDP)
+ flow->ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE | RTE_PTYPE_L4_UDP;
+ else
+ flow->ptype = RTE_PTYPE_TUNNEL_MPLS_IN_GRE;
+ return size;
+#endif /* !HAVE_IBV_DEVICE_MPLS_SUPPORT */
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "MPLS is not supported by Verbs, please"
+ " update.");
+}
+
/**
* Validate items provided by the user.
*
@@ -1650,6 +1722,9 @@ mlx5_flow_items(struct rte_eth_dev *dev,
case RTE_FLOW_ITEM_TYPE_GRE:
ret = mlx5_flow_item_gre(items, flow, remain, error);
break;
+ case RTE_FLOW_ITEM_TYPE_MPLS:
+ ret = mlx5_flow_item_mpls(items, flow, remain, error);
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
--
2.18.0
