From: Kiran Kumar K <kirankumark@marvell.com>
Date: Thu, 25 Jul 2019 09:03:44 +0000 (+0530)
Subject: ethdev: add IGMP key field to flow API
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=30f9f9f451531e41a1c51fe93ca965adb5a12e27;p=dpdk.git

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>
---

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.
  *