[dpdk-dev] [RFC] ethdev: support input set change by RSS action

[simei <simei.su@intel.com>]

From: Simei Su <simei.su@intel.com>

This RFC introduces inputset structure to rte_flow_action_rss to
support input set specific configuration by rte_flow RSS action.

We can give an testpmd command line example to make it more clear.

For example, below flow selects the l4 port as inputset for any
eth/ipv4/tcp packet: #flow create 0 ingress pattern eth / ipv4 / tcp /
end actions rss inputset tcp src mask 0xffff dst mask 0xffff /end

Signed-off-by: Simei Su <simei.su@intel.com>
---
 lib/librte_ethdev/rte_flow.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index f3a8fb1..2a455b6 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -1796,6 +1796,9 @@ struct rte_flow_action_rss {
 	uint32_t queue_num; /**< Number of entries in @p queue. */
 	const uint8_t *key; /**< Hash key. */
 	const uint16_t *queue; /**< Queue indices to use. */
+	struct rte_flow_item *inputset; /** Provide more specific inputset configuration.
+					 * ignore spec, only mask.
+					 */
 };
 
 /**
-- 
1.8.3.1