From: Simei Su <simei...@intel.com>
Make it easier to represent to define macro values as (1ULL << ###).
This RFC reserves several bits as input set selection from bottom
of the 64 bits. The flow type is combined with input set to
represent rss types.
for example:
ETH_RSS_IPV4 | ETH_RSS_INSET_L3_SRC: hash on src ip address only
ETH_RSS_IPV4_UDP | ETH_RSS_INSET_L4_DST: hash on src/dst IP and
dst UDP port
ETH_RSS_L2_PAYLOAD | ETH_RSS_INSET_L2_DST: hash on dst mac address
Signed-off-by: Simei Su <simei...@intel.com>
---
lib/librte_ethdev/rte_ethdev.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index dc6596b..8af6355 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -508,6 +508,19 @@ struct rte_eth_rss_conf {
#define ETH_RSS_GENEVE (1ULL << RTE_ETH_FLOW_GENEVE)
#define ETH_RSS_NVGRE (1ULL << RTE_ETH_FLOW_NVGRE)
+/*
+ * The following six macros are used combined with ETH_RSS_* to
+ * represent rss types. The structure rte_flow_action_rss.types is
+ * 64-bit wide and we reserve couple bits here for input set selection
+ * from bottom of the 64 bits.
+ */
+#define ETH_RSS_INSET_L2_SRC (1ULL << 63)
+#define ETH_RSS_INSET_L2_DST (1ULL << 62)
+#define ETH_RSS_INSET_L3_SRC (1ULL << 61)
+#define ETH_RSS_INSET_L3_DST (1ULL << 60)
+#define ETH_RSS_INSET_L4_SRC (1ULL << 59)
+#define ETH_RSS_INSET_L4_DST (1ULL << 58)
+
#define ETH_RSS_IP ( \
ETH_RSS_IPV4 | \
ETH_RSS_FRAG_IPV4 | \
--
1.8.3.1
