[dpdk-dev] [RFC v1 1/5] ethdev: support rss level on tunnel

[Xueming Li <xuemingl@mellanox.com>]

There was no RSS hash fields level definition on tunnel, implementations
default RSS on tunnel to outer or inner. Adding rss level enable users
to specifiy the tunnel level of RSS hash fields.

0:  outer most,
1:  inner,
-1: inner most(PMD auto detection if nested tunnel specified in fields)

Signed-off-by: Xueming Li <xuemingl@mellanox.com>
---
 lib/librte_ether/rte_flow.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/librte_ether/rte_flow.h b/lib/librte_ether/rte_flow.h
index 47c88ea52..41ab91912 100644
--- a/lib/librte_ether/rte_flow.h
+++ b/lib/librte_ether/rte_flow.h
@@ -1078,6 +1078,14 @@ struct rte_flow_action_dup {
  */
 struct rte_flow_action_rss {
 	const struct rte_eth_rss_conf *rss_conf; /**< RSS parameters. */
+	/**
+	 * RSS on tunnel level:
+	 *  0: outer RSS
+	 *  1: inner RSS
+	 *  2-254: deep inner tunnel level RSS
+	 *  -1: inner most level according to flow pattern
+	 */
+	uint8_t level;
 	uint16_t num; /**< Number of entries in queue[]. */
 	uint16_t queue[]; /**< Queues indices to use. */
 };
-- 
2.13.3