[dpdk-dev] [PATCH v4] net/iavf: fix invalid RSS combinations rule can be created

[Murphy Yang]

Currently, when use 'flow' command to create a rule that combine with
several RSS types, even the RSS type combination is invalid, it also
be created successfully.

Here list some invalid RSS combinations:
 - ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP
 - ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_TCP
 - ETH_RSS_GTPU | ETH_RSS_IPV4
 - ETH_RSS_GTPU | ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP
 - ETH_RSS_GTPU | ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP
 - ETH_RSS_GTPU | ETH_RSS_IPV6
 - ETH_RSS_GTPU | ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP
 - ETH_RSS_GTPU | ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_TCP

So, this patch adds these combinations in 'invalid_rss_comb'
array to do valid check, if the combination check failed,
the rule will be created unsuccessful.

Fixes: 91f27b2e39ab ("net/iavf: refactor RSS")

Signed-off-by: Murphy Yang <murphyx.yang at intel.com>
---
v4:
- use 'ETH_RSS_XXX' replace 'IAVF_RSS_TYPE_INNER_XXX'
v3:
- update the comments.
v2:
- add invalid RSS combinations.

 drivers/net/iavf/iavf_hash.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/iavf/iavf_hash.c b/drivers/net/iavf/iavf_hash.c
index c4c73e6644..3ed72f6475 100644
--- a/drivers/net/iavf/iavf_hash.c
+++ b/drivers/net/iavf/iavf_hash.c
@@ -806,7 +806,15 @@ static void iavf_refine_proto_hdrs(struct virtchnl_proto_hdrs *proto_hdrs,
 
 static uint64_t invalid_rss_comb[] = {
 	ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
+	ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP,
 	ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
+	ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_TCP,
+	ETH_RSS_GTPU | ETH_RSS_IPV4,
+	ETH_RSS_GTPU | ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
+	ETH_RSS_GTPU | ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP,
+	ETH_RSS_GTPU | ETH_RSS_IPV6,
+	ETH_RSS_GTPU | ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
+	ETH_RSS_GTPU | ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_TCP,
 	RTE_ETH_RSS_L3_PRE32 | RTE_ETH_RSS_L3_PRE40 |
 	RTE_ETH_RSS_L3_PRE48 | RTE_ETH_RSS_L3_PRE56 |
 	RTE_ETH_RSS_L3_PRE96
-- 
2.17.1