From 30f9f9f451531e41a1c51fe93ca965adb5a12e27 Mon Sep 17 00:00:00 2001
From: Kiran Kumar K <kirankumark@marvell.com>
Date: Thu, 25 Jul 2019 14:33:44 +0530
Subject: [PATCH] ethdev: add IGMP key field to flow API
Add new rte_flow_item_igmp in order to match the Internet Group
Management Protocol based on RFC 2236.
Signed-off-by: Kiran Kumar K <kirankumark@marvell.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
doc/guides/prog_guide/rte_flow.rst | 12 ++++++++++++
lib/librte_ethdev/rte_flow.c | 1 +
lib/librte_ethdev/rte_flow.h | 30 ++++++++++++++++++++++++++++++
3 files changed, 43 insertions(+)
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index 3428b65b20..799086aeba 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -1265,6 +1265,18 @@ Matches a network service header (RFC 8300).
- Default ``mask`` matches mdtype, next_proto, spi, sindex.
+Item: ``IGMP``
+^^^^^^^^^^^^^^
+
+Matches a Internet Group Management Protocol (RFC 2236).
+
+- ``type``: IGMP message type (Query/Report).
+- ``max_resp_time``: max time allowed before sending report.
+- ``checksum``: checksum, 1s complement of whole IGMP message.
+- ``group_addr``: group address, for Query value will be 0.
+- Default ``mask`` matches group_addr.
+
+
Actions
~~~~~~~
diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index 62263ff244..2dfe88ca02 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -81,6 +81,7 @@ static const struct rte_flow_desc_data rte_flow_desc_item[] = {
MK_FLOW_ITEM(PPPOE_PROTO_ID,
sizeof(struct rte_flow_item_pppoe_proto_id)),
MK_FLOW_ITEM(NSH, sizeof(struct rte_flow_item_nsh)),
+ MK_FLOW_ITEM(IGMP, sizeof(struct rte_flow_item_igmp)),
};
/** Generate flow_action[] entry. */
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index d1dcab8f81..350566cac8 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -477,6 +477,13 @@ enum rte_flow_item_type {
*
*/
RTE_FLOW_ITEM_TYPE_NSH,
+
+ /**
+ * Matches Internet Group Management Protocol (IGMP).
+ * See struct rte_flow_item_igmp.
+ *
+ */
+ RTE_FLOW_ITEM_TYPE_IGMP,
};
/**
@@ -1346,6 +1353,29 @@ static const struct rte_flow_item_nsh rte_flow_item_nsh_mask = {
};
#endif
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ITEM_TYPE_IGMP
+ *
+ * Match Internet Group Management Protocol (IGMP), RFC 2236
+ *
+ */
+struct rte_flow_item_igmp {
+ uint32_t type:8;
+ uint32_t max_resp_time:8;
+ uint32_t checksum:16;
+ uint32_t group_addr;
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_IGMP. */
+#ifndef __cplusplus
+static const struct rte_flow_item_igmp rte_flow_item_igmp_mask = {
+ .group_addr = 0xffffffff,
+};
+#endif
+
/**
* Matching pattern item definition.
*
--
2.39.5