From: Chenxu Di <chenxux.di@intel.com>
Date: Wed, 8 Jul 2020 01:18:40 +0000 (+0000)
Subject: net/i40e: enable flow query RSS
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=812e5f1d8985711df519c5c3d093009cd7d10265;p=dpdk.git

net/i40e: enable flow query RSS

This patch enables flow query function to get the
configuration of the specified rule.

Signed-off-by: Chenxu Di <chenxux.di@intel.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
---

diff --git a/doc/guides/rel_notes/release_20_08.rst b/doc/guides/rel_notes/release_20_08.rst
index 17c3af42be..eb16d13ca9 100644
--- a/doc/guides/rel_notes/release_20_08.rst
+++ b/doc/guides/rel_notes/release_20_08.rst
@@ -134,6 +134,7 @@ New Features
   * Supported cloud filter for IPv4/6_TCP/UDP/SCTP with SRC port only or DST port only.
   * Re-implemented get_fdir_info and get_fdir_stat in private API.
   * Re-implemented set_gre_key_len in private API.
+  * Added support for flow query RSS.
 
 * **Updated the Intel ixgbe driver.**
 
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index 955aead583..7cd537340d 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -43,6 +43,10 @@ static int i40e_flow_destroy(struct rte_eth_dev *dev,
 			     struct rte_flow_error *error);
 static int i40e_flow_flush(struct rte_eth_dev *dev,
 			   struct rte_flow_error *error);
+static int i40e_flow_query(struct rte_eth_dev *dev,
+			   struct rte_flow *flow,
+			   const struct rte_flow_action *actions,
+			   void *data, struct rte_flow_error *error);
 static int
 i40e_flow_parse_ethertype_pattern(struct rte_eth_dev *dev,
 				  const struct rte_flow_item *pattern,
@@ -135,6 +139,7 @@ const struct rte_flow_ops i40e_flow_ops = {
 	.create = i40e_flow_create,
 	.destroy = i40e_flow_destroy,
 	.flush = i40e_flow_flush,
+	.query = i40e_flow_query,
 };
 
 static union i40e_filter_t cons_filter;
@@ -5692,3 +5697,47 @@ i40e_flow_flush_rss_filter(struct rte_eth_dev *dev)
 
 	return ret;
 }
+
+static int
+i40e_flow_query(struct rte_eth_dev *dev __rte_unused,
+		struct rte_flow *flow,
+		const struct rte_flow_action *actions,
+		void *data, struct rte_flow_error *error)
+{
+	struct i40e_rss_filter *rss_rule = (struct i40e_rss_filter *)flow->rule;
+	enum rte_filter_type filter_type = flow->filter_type;
+	struct rte_flow_action_rss *rss_conf = data;
+
+	if (!rss_rule) {
+		rte_flow_error_set(error, EINVAL,
+				   RTE_FLOW_ERROR_TYPE_HANDLE,
+				   NULL, "Invalid rule");
+		return -rte_errno;
+	}
+
+	for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+		switch (actions->type) {
+		case RTE_FLOW_ACTION_TYPE_VOID:
+			break;
+		case RTE_FLOW_ACTION_TYPE_RSS:
+			if (filter_type != RTE_ETH_FILTER_HASH) {
+				rte_flow_error_set(error, ENOTSUP,
+						   RTE_FLOW_ERROR_TYPE_ACTION,
+						   actions,
+						   "action not supported");
+				return -rte_errno;
+			}
+			rte_memcpy(rss_conf,
+				   &rss_rule->rss_filter_info.conf,
+				   sizeof(struct rte_flow_action_rss));
+			break;
+		default:
+			return rte_flow_error_set(error, ENOTSUP,
+						  RTE_FLOW_ERROR_TYPE_ACTION,
+						  actions,
+						  "action not supported");
+		}
+	}
+
+	return 0;
+}