This patch adds GTP items to generic rte flow.
Signed-off-by: Beilei Xing <beilei.x...@intel.com>
---
doc/guides/prog_guide/rte_flow.rst | 12 ++++++++++++
lib/librte_ether/rte_flow.h | 31 +++++++++++++++++++++++++++++++
2 files changed, 43 insertions(+)
diff --git a/doc/guides/prog_guide/rte_flow.rst
b/doc/guides/prog_guide/rte_flow.rst
index 662a912..2843b71 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -955,6 +955,18 @@ Usage example, fuzzy match a TCPv4 packets:
| 4 | END |
+-------+----------+
+Item: ``GTP``
+^^^^^^^^^^^^^^
+
+Matches a GTP header.
+
+- ``v_pt_rsv_flags``: version (3b), protocol type (1b), reserved (1b),
+ extension header flag (1b), sequence number flag (1b), N-PDU number flag(1b).
+- ``msg_type``: message type.
+- ``msg_len``: message length.
+- ``teid``: TEID.
+- Default ``mask`` matches teid only.
+
Actions
~~~~~~~
diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index bba6169..73305aa 100644
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -309,6 +309,13 @@ enum rte_flow_item_type {
* See struct rte_flow_item_fuzzy.
*/
RTE_FLOW_ITEM_TYPE_FUZZY,
+
+ /**
+ * Matches a GTP header
+ *
+ * See struct rte_flow_item.
+ */
+ RTE_FLOW_ITEM_TYPE_GTP,
};
/**
@@ -735,6 +742,30 @@ static const struct rte_flow_item_fuzzy
rte_flow_item_fuzzy_mask = {
#endif
/**
+ * RTE_FLOW_ITEM_TYPE_GTP.
+ *
+ * Matches a GTP header.
+ */
+struct rte_flow_item_gtp {
+ /**
+ * Version(2b), Protocol type(1b), Reserved(1b),
+ * Extension header flag(1b),
+ * Sequqnce number flag(1b),
+ * N-PDU number flag(1b).
+ */
+ uint8_t v_pt_rsv_flags;
+ uint8_t msg_type; /**< Message type */
+ rte_be16_t msg_len; /**< Message length */
+ rte_be32_t teid;
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_GTP. */
+#ifndef __cplusplus
+ static const struct rte_flow_item_gtp rte_flow_item_gtp_mask = {
+ .teid = RTE_BE32(0xffffffff),
+ };
+#endif
+/**
* Matching pattern item definition.
*
* A pattern is formed by stacking items starting from the lowest protocol
--
2.5.5
