[dpdk-dev] [PATCH v2 25/52] net/ice/base: add RSS support for IPv6 prefix

[Qi Zhang <qi.z.zhang@intel.com>]

Some IPv6 prefix related fields are defined in this patch, so that we
can use prefixes instead of full IPv6 address for RSS. These prefixes
include the first 32, 48, 64 bits of both SRC and DST IPV6 address.

Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Signed-off-by: Paul M. Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/ice/base/ice_flow.c | 27 +++++++++++++++++++++++++++
 drivers/net/ice/base/ice_flow.h | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/drivers/net/ice/base/ice_flow.c b/drivers/net/ice/base/ice_flow.c
index dfa351ff2..030a55ba7 100644
--- a/drivers/net/ice/base/ice_flow.c
+++ b/drivers/net/ice/base/ice_flow.c
@@ -10,6 +10,9 @@
 #define ICE_FLOW_FLD_SZ_VLAN		2
 #define ICE_FLOW_FLD_SZ_IPV4_ADDR	4
 #define ICE_FLOW_FLD_SZ_IPV6_ADDR	16
+#define ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR	4
+#define ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR	6
+#define ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR	8
 #define ICE_FLOW_FLD_SZ_IP_DSCP		1
 #define ICE_FLOW_FLD_SZ_IP_TTL		1
 #define ICE_FLOW_FLD_SZ_IP_PROT		1
@@ -91,6 +94,24 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
 	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, ICE_FLOW_FLD_SZ_IPV6_ADDR),
 	/* ICE_FLOW_FIELD_IDX_IPV6_DA */
 	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR),
+	/* ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA */
+	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+			  ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR),
 	/* Transport */
 	/* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
 	ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, ICE_FLOW_FLD_SZ_PORT),
@@ -959,6 +980,12 @@ ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
 		break;
 	case ICE_FLOW_FIELD_IDX_IPV6_SA:
 	case ICE_FLOW_FIELD_IDX_IPV6_DA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA:
+	case ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA:
 		prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
 		break;
 	case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
diff --git a/drivers/net/ice/base/ice_flow.h b/drivers/net/ice/base/ice_flow.h
index 88c369a33..6e4257123 100644
--- a/drivers/net/ice/base/ice_flow.h
+++ b/drivers/net/ice/base/ice_flow.h
@@ -26,6 +26,15 @@
 #define ICE_FLOW_HASH_IPV6	\
 	(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | \
 	 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA))
+#define ICE_FLOW_HASH_IPV6_PRE32	\
+	(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA) | \
+	 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA))
+#define ICE_FLOW_HASH_IPV6_PRE48	\
+	(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA) | \
+	 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA))
+#define ICE_FLOW_HASH_IPV6_PRE64	\
+	(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA) | \
+	 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA))
 #define ICE_FLOW_HASH_TCP_PORT	\
 	(BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) | \
 	 BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT))
@@ -44,6 +53,25 @@
 #define ICE_HASH_SCTP_IPV4	(ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_SCTP_PORT)
 #define ICE_HASH_SCTP_IPV6	(ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_SCTP_PORT)
 
+#define ICE_HASH_TCP_IPV6_PRE32	 \
+	(ICE_FLOW_HASH_IPV6_PRE32 | ICE_FLOW_HASH_TCP_PORT)
+#define ICE_HASH_UDP_IPV6_PRE32	 \
+	(ICE_FLOW_HASH_IPV6_PRE32 | ICE_FLOW_HASH_UDP_PORT)
+#define ICE_HASH_SCTP_IPV6_PRE32 \
+	(ICE_FLOW_HASH_IPV6_PRE32 | ICE_FLOW_HASH_SCTP_PORT)
+#define ICE_HASH_TCP_IPV6_PRE48	 \
+	(ICE_FLOW_HASH_IPV6_PRE48 | ICE_FLOW_HASH_TCP_PORT)
+#define ICE_HASH_UDP_IPV6_PRE48	 \
+	(ICE_FLOW_HASH_IPV6_PRE48 | ICE_FLOW_HASH_UDP_PORT)
+#define ICE_HASH_SCTP_IPV6_PRE48 \
+	(ICE_FLOW_HASH_IPV6_PRE48 | ICE_FLOW_HASH_SCTP_PORT)
+#define ICE_HASH_TCP_IPV6_PRE64	 \
+	(ICE_FLOW_HASH_IPV6_PRE64 | ICE_FLOW_HASH_TCP_PORT)
+#define ICE_HASH_UDP_IPV6_PRE64	 \
+	(ICE_FLOW_HASH_IPV6_PRE64 | ICE_FLOW_HASH_UDP_PORT)
+#define ICE_HASH_SCTP_IPV6_PRE64 \
+	(ICE_FLOW_HASH_IPV6_PRE64 | ICE_FLOW_HASH_SCTP_PORT)
+
 #define ICE_FLOW_HASH_GTP_TEID \
 	(BIT_ULL(ICE_FLOW_FIELD_IDX_GTPC_TEID))
 
@@ -186,6 +214,12 @@ enum ice_flow_field {
 	ICE_FLOW_FIELD_IDX_IPV4_DA,
 	ICE_FLOW_FIELD_IDX_IPV6_SA,
 	ICE_FLOW_FIELD_IDX_IPV6_DA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA,
+	ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA,
 	/* L4 */
 	ICE_FLOW_FIELD_IDX_TCP_SRC_PORT,
 	ICE_FLOW_FIELD_IDX_TCP_DST_PORT,
-- 
2.13.6