[dpdk-dev] [PATCH v5 1/4] ethdev: add MPLS and GRE items
Beilei Xing
beilei.xing at intel.com
Thu Mar 30 08:56:34 CEST 2017
This patch adds MPLS and GRE items to generic rte flow.
Signed-off-by: Beilei Xing <beilei.xing at intel.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil at 6wind.com>
---
doc/guides/prog_guide/rte_flow.rst | 21 ++++++++++++++--
lib/librte_ether/rte_flow.h | 51 ++++++++++++++++++++++++++++++++++++++
2 files changed, 70 insertions(+), 2 deletions(-)
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index 3bf8871..5ee045e 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -187,8 +187,8 @@ Pattern item
Pattern items fall in two categories:
- Matching protocol headers and packet data (ANY, RAW, ETH, VLAN, IPV4,
- IPV6, ICMP, UDP, TCP, SCTP, VXLAN and so on), usually associated with a
- specification structure.
+ IPV6, ICMP, UDP, TCP, SCTP, VXLAN, MPLS, GRE and so on), usually
+ associated with a specification structure.
- Matching meta-data or affecting pattern processing (END, VOID, INVERT, PF,
VF, PORT and so on), often without a specification structure.
@@ -863,6 +863,23 @@ Matches a VXLAN header (RFC 7348).
- ``rsvd1``: reserved, normally 0x00.
- Default ``mask`` matches VNI only.
+Item: ``MPLS``
+^^^^^^^^^^^^^^
+
+Matches a MPLS header.
+
+- ``label_tc_s_ttl``: label, TC, Bottom of Stack and TTL.
+- Default ``mask`` matches label only.
+
+Item: ``GRE``
+^^^^^^^^^^^^^^
+
+Matches a GRE header.
+
+- ``c_rsvd0_ver``: checksum, reserved 0 and version.
+- ``protocol``: protocol type.
+- Default ``mask`` matches protocol only.
+
Actions
~~~~~~~
diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index 171a569..8013eca 100644
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -282,6 +282,20 @@ enum rte_flow_item_type {
* See struct rte_flow_item_nvgre.
*/
RTE_FLOW_ITEM_TYPE_NVGRE,
+
+ /**
+ * Matches a MPLS header.
+ *
+ * See struct rte_flow_item_mpls.
+ */
+ RTE_FLOW_ITEM_TYPE_MPLS,
+
+ /**
+ * Matches a GRE header.
+ *
+ * See struct rte_flow_item_gre.
+ */
+ RTE_FLOW_ITEM_TYPE_GRE,
};
/**
@@ -599,6 +613,43 @@ struct rte_flow_item_nvgre {
};
/**
+ * RTE_FLOW_ITEM_TYPE_MPLS.
+ *
+ * Matches a MPLS header.
+ */
+struct rte_flow_item_mpls {
+ /**
+ * Label (20b), TC (3b), Bottom of Stack (1b).
+ */
+ uint8_t label_tc_s[3];
+ uint8_t ttl; /** Time-to-Live. */
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_MPLS. */
+static const struct rte_flow_item_mpls rte_flow_item_mpls_mask = {
+ .label_tc_s = "\xff\xff\xf0",
+};
+
+/**
+ * RTE_FLOW_ITEM_TYPE_GRE.
+ *
+ * Matches a GRE header.
+ */
+struct rte_flow_item_gre {
+ /**
+ * Checksum (1b), reserved 0 (12b), version (3b).
+ * Refer to RFC 2784.
+ */
+ uint16_t c_rsvd0_ver;
+ uint16_t protocol; /**< Protocol type. */
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_GRE. */
+static const struct rte_flow_item_gre rte_flow_item_gre_mask = {
+ .protocol = 0xffff,
+};
+
+/**
* Matching pattern item definition.
*
* A pattern is formed by stacking items starting from the lowest protocol
--
2.5.5
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