Signed-off-by: Nelio Laranjeiro <nelio.laranje...@6wind.com>
---
drivers/net/mlx5/mlx5_flow.c | 65 ++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 06b4b7f41..57f072c03 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -787,6 +787,68 @@ mlx5_flow_item_udp(const struct rte_flow_item *item,
struct rte_flow *flow,
return size;
}
+/**
+ * Validate TCP layer and possibly create the Verbs specification.
+ *
+ * @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_tcp(const struct rte_flow_item *item, struct rte_flow *flow,
+ const size_t flow_size, struct rte_flow_error *error)
+{
+ const struct rte_flow_item_tcp *spec = item->spec;
+ const struct rte_flow_item_tcp *mask = item->mask;
+ unsigned int size = sizeof(struct ibv_flow_spec_tcp_udp);
+ struct ibv_flow_spec_tcp_udp tcp = {
+ .type = IBV_FLOW_SPEC_TCP,
+ .size = size,
+ };
+ int ret;
+
+ if (!(flow->layers & MLX5_FLOW_LAYER_OUTER_L3))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "L3 is mandatory to filter on L4");
+ if (flow->layers & MLX5_FLOW_LAYER_OUTER_L4)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "L4 layer is already present");
+ if (!mask)
+ mask = &rte_flow_item_tcp_mask;
+ ret = mlx5_flow_item_validate(item, (const uint8_t *)mask,
+ (const uint8_t *)&rte_flow_item_tcp_mask,
+ sizeof(struct rte_flow_item_tcp), error);
+ if (ret < 0)
+ return ret;
+ flow->layers |= MLX5_FLOW_LAYER_OUTER_L4_TCP;
+ if (size > flow_size)
+ return size;
+ if (spec) {
+ tcp.val.dst_port = spec->hdr.dst_port;
+ tcp.val.src_port = spec->hdr.src_port;
+ tcp.mask.dst_port = mask->hdr.dst_port;
+ tcp.mask.src_port = mask->hdr.src_port;
+ /* Remove unwanted bits from values. */
+ tcp.val.src_port &= tcp.mask.src_port;
+ tcp.val.dst_port &= tcp.mask.dst_port;
+ }
+ mlx5_flow_spec_verbs_add(flow, &tcp, size);
+ return size;
+}
+
/**
* Validate items provided by the user.
*
@@ -832,6 +894,9 @@ mlx5_flow_items(const struct rte_flow_item items[],
case RTE_FLOW_ITEM_TYPE_UDP:
ret = mlx5_flow_item_udp(items, flow, remain, error);
break;
+ case RTE_FLOW_ITEM_TYPE_TCP:
+ ret = mlx5_flow_item_tcp(items, flow, remain, error);
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ITEM,
--
2.18.0
