diff mbox series

[v7,1/9] lib/librte_ethdev: introduce GENEVE header TLV option item

Message ID 20210117102123.19045-2-shirik@nvidia.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series ethdev: introduce GENEVE header TLV option item | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Shiri Kuzin Jan. 17, 2021, 10:21 a.m. UTC
The Geneve tunneling protocol is designed to allow the
user to specify some data context on the packet.
The GENEVE TLV (Type-Length-Variable) Option
is the mean intended to present the user data.

In order to support GENEVE TLV Option the new rte_flow
item "rte_flow_item_geneve_opt" is added.
The new item contains the values and masks for the
following fields:
-option class
-option type
-length
-data

New item will be added to testpmd to support match and
raw encap/decap actions.

Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Acked-by: Ori Kam <orika@nvidia.com>
---
 lib/librte_ethdev/rte_flow.c |  1 +
 lib/librte_ethdev/rte_flow.h | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

Comments

Ferruh Yigit Jan. 18, 2021, 2:29 p.m. UTC | #1
On 1/17/2021 10:21 AM, Shiri Kuzin wrote:
> The Geneve tunneling protocol is designed to allow the
> user to specify some data context on the packet.
> The GENEVE TLV (Type-Length-Variable) Option
> is the mean intended to present the user data.
> 
> In order to support GENEVE TLV Option the new rte_flow
> item "rte_flow_item_geneve_opt" is added.
> The new item contains the values and masks for the
> following fields:
> -option class
> -option type
> -length
> -data
> 
> New item will be added to testpmd to support match and
> raw encap/decap actions.
> 
> Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
> Acked-by: Ori Kam <orika@nvidia.com>

Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
diff mbox series

Patch

diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index a06f64c271..2af7d965e1 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -97,6 +97,7 @@  static const struct rte_flow_desc_data rte_flow_desc_item[] = {
 	MK_FLOW_ITEM(L2TPV3OIP, sizeof(struct rte_flow_item_l2tpv3oip)),
 	MK_FLOW_ITEM(PFCP, sizeof(struct rte_flow_item_pfcp)),
 	MK_FLOW_ITEM(ECPRI, sizeof(struct rte_flow_item_ecpri)),
+	MK_FLOW_ITEM(GENEVE_OPT, sizeof(struct rte_flow_item_geneve_opt)),
 };
 
 /** Generate flow_action[] entry. */
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index 0977a78270..11a6494b8e 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -543,6 +543,14 @@  enum rte_flow_item_type {
 	 * See struct rte_flow_item_ipv6_frag_ext.
 	 */
 	RTE_FLOW_ITEM_TYPE_IPV6_FRAG_EXT,
+
+	/**
+	 * Matches Geneve Variable Length Option
+	 *
+	 * See struct rte_flow_item_geneve_opt
+	 */
+	RTE_FLOW_ITEM_TYPE_GENEVE_OPT,
+
 };
 
 /**
@@ -1627,6 +1635,25 @@  static const struct rte_flow_item_ecpri rte_flow_item_ecpri_mask = {
 };
 #endif
 
+/**
+ * RTE_FLOW_ITEM_TYPE_GENEVE_OPT
+ *
+ * Matches a GENEVE Variable Length Option
+ */
+struct rte_flow_item_geneve_opt {
+	rte_be16_t option_class;
+	uint8_t option_type;
+	uint8_t option_len;
+	uint32_t *data;
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_GENEVE_OPT. */
+#ifndef __cplusplus
+static const struct rte_flow_item_geneve_opt
+rte_flow_item_geneve_opt_mask = {
+	.option_type = 0xff,
+};
+#endif
 /**
  * Matching pattern item definition.
  *