[dpdk-dev] [PATCH v4 2/2] net/ice: enable advanced RSS

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

This patch supports the following features:
  (1)inner header hash for tunnel packets, including comms package.
  (2)symmetric hash by rte_flow RSS action.
  (3)input set change by rte_flow RSS action.

Signed-off-by: Simei Su <simei.su@intel.com>
---
 doc/guides/rel_notes/release_19_11.rst |   1 +
 drivers/net/ice/Makefile               |   1 +
 drivers/net/ice/ice_ethdev.c           |   7 +
 drivers/net/ice/ice_hash.c             | 556 +++++++++++++++++++++++++++++++++
 drivers/net/ice/meson.build            |   1 +
 5 files changed, 566 insertions(+)
 create mode 100644 drivers/net/ice/ice_hash.c

diff --git a/doc/guides/rel_notes/release_19_11.rst b/doc/guides/rel_notes/release_19_11.rst
index bc77daf..14b598b 100644
--- a/doc/guides/rel_notes/release_19_11.rst
+++ b/doc/guides/rel_notes/release_19_11.rst
@@ -66,6 +66,7 @@ New Features
   * Generic filter enhancement
     - Supported pipeline mode.
     - Supported new packet type like PPPoE for switch filter.
+  * Supported input set change and symmetric hash by rte_flow RSS action.
 
 Removed Items
 -------------
diff --git a/drivers/net/ice/Makefile b/drivers/net/ice/Makefile
index 4a279f1..c9bef60 100644
--- a/drivers/net/ice/Makefile
+++ b/drivers/net/ice/Makefile
@@ -62,6 +62,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_rxtx_vec_sse.c
 endif
 
 SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_switch_filter.c
+SRCS-$(CONFIG_RTE_LIBRTE_ICE_PMD) += ice_hash.c
 ifeq ($(findstring RTE_MACHINE_CPUFLAG_AVX2,$(CFLAGS)),RTE_MACHINE_CPUFLAG_AVX2)
 	CC_AVX2_SUPPORT=1
 else
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 7570197..304f5cd 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2181,6 +2181,7 @@ static int ice_init_rss(struct ice_pf *pf)
 	uint16_t i, nb_q;
 	int ret = 0;
 	bool is_safe_mode = pf->adapter->is_safe_mode;
+	uint32_t reg;
 
 	rss_conf = &dev->data->dev_conf.rx_adv_conf.rss_conf;
 	nb_q = dev->data->nb_rx_queues;
@@ -2224,6 +2225,12 @@ static int ice_init_rss(struct ice_pf *pf)
 	if (ret)
 		return -EINVAL;
 
+	/* Enable registers for symmetric_toeplitz function. */
+	reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
+	reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
+		(1 << VSIQF_HASH_CTL_HASH_SCHEME_S);
+	ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
+
 	/* configure RSS for IPv4 with input set IPv4 src/dst */
 	ret = ice_add_rss_cfg(hw, vsi->idx, ICE_FLOW_HASH_IPV4,
 			      ICE_FLOW_SEG_HDR_IPV4, 0);
diff --git a/drivers/net/ice/ice_hash.c b/drivers/net/ice/ice_hash.c
new file mode 100644
index 0000000..15105c5
--- /dev/null
+++ b/drivers/net/ice/ice_hash.c
@@ -0,0 +1,556 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#include <rte_debug.h>
+#include <rte_ether.h>
+#include <rte_ethdev_driver.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_eth_ctrl.h>
+#include <rte_tailq.h>
+#include <rte_flow_driver.h>
+
+#include "ice_logs.h"
+#include "base/ice_type.h"
+#include "base/ice_flow.h"
+#include "ice_ethdev.h"
+#include "ice_generic_flow.h"
+
+#define ICE_ACTION_RSS_MAX_QUEUE_NUM 32
+
+struct rss_type_match_hdr {
+	uint32_t hdr_mask;
+	uint64_t eth_rss_hint;
+};
+
+struct ice_hash_match_type {
+	uint64_t hash_type;
+	uint64_t hash_flds;
+};
+
+struct rss_meta {
+	uint32_t pkt_hdr;
+	uint64_t hash_flds;
+	uint8_t hash_function;
+};
+
+static int
+ice_hash_init(struct ice_adapter *ad);
+
+static int
+ice_hash_create(struct ice_adapter *ad,
+		struct rte_flow *flow,
+		void *meta,
+		struct rte_flow_error *error);
+
+static int
+ice_hash_destroy(struct ice_adapter *ad,
+		struct rte_flow *flow,
+		struct rte_flow_error *error);
+
+static void
+ice_hash_uninit(struct ice_adapter *ad);
+
+static void
+ice_hash_free(struct rte_flow *flow);
+
+static int
+ice_hash_parse_pattern_action(struct ice_adapter *ad,
+			struct ice_pattern_match_item *array,
+			uint32_t array_len,
+			const struct rte_flow_item pattern[],
+			const struct rte_flow_action actions[],
+			void **meta,
+			struct rte_flow_error *error);
+
+/* The first member is protocol header, the second member is ETH_RSS_*. */
+const struct rss_type_match_hdr hint_0 = {
+	ICE_FLOW_SEG_HDR_NONE,	0};
+const struct rss_type_match_hdr hint_1 = {
+	ICE_FLOW_SEG_HDR_IPV4,	ETH_RSS_IPV4};
+const struct rss_type_match_hdr hint_2 = {
+	ICE_FLOW_SEG_HDR_IPV4|ICE_FLOW_SEG_HDR_UDP, ETH_RSS_NONFRAG_IPV4_UDP};
+const struct rss_type_match_hdr hint_3 = {
+	ICE_FLOW_SEG_HDR_IPV4|ICE_FLOW_SEG_HDR_TCP, ETH_RSS_NONFRAG_IPV4_TCP};
+const struct rss_type_match_hdr hint_4 = {
+	ICE_FLOW_SEG_HDR_IPV4|ICE_FLOW_SEG_HDR_SCTP, ETH_RSS_NONFRAG_IPV4_SCTP};
+const struct rss_type_match_hdr hint_5 = {
+	ICE_FLOW_SEG_HDR_IPV6,	ETH_RSS_IPV6};
+const struct rss_type_match_hdr hint_6 = {
+	ICE_FLOW_SEG_HDR_IPV6|ICE_FLOW_SEG_HDR_UDP, ETH_RSS_NONFRAG_IPV6_UDP};
+const struct rss_type_match_hdr hint_7 = {
+	ICE_FLOW_SEG_HDR_IPV6|ICE_FLOW_SEG_HDR_TCP, ETH_RSS_NONFRAG_IPV6_TCP};
+const struct rss_type_match_hdr hint_8 = {
+	ICE_FLOW_SEG_HDR_IPV6|ICE_FLOW_SEG_HDR_SCTP, ETH_RSS_NONFRAG_IPV6_SCTP};
+const struct rss_type_match_hdr hint_9 = {
+	ICE_FLOW_SEG_HDR_GTPU_IP,	ETH_RSS_IPV4};
+const struct rss_type_match_hdr hint_10 = {
+	ICE_FLOW_SEG_HDR_PPPOE,	ETH_RSS_IPV4};
+const struct rss_type_match_hdr hint_11 = {
+	ICE_FLOW_SEG_HDR_PPPOE,	ETH_RSS_NONFRAG_IPV4_UDP};
+const struct rss_type_match_hdr hint_12 = {
+	ICE_FLOW_SEG_HDR_PPPOE,	ETH_RSS_NONFRAG_IPV4_TCP};
+const struct rss_type_match_hdr hint_13 = {
+	ICE_FLOW_SEG_HDR_PPPOE,	ETH_RSS_NONFRAG_IPV4_SCTP};
+
+/* Supported pattern for os default package. */
+static struct ice_pattern_match_item ice_hash_pattern_list_os[] = {
+	{pattern_eth_ipv4,	ICE_INSET_NONE,	(uint64_t)(&hint_1)},
+	{pattern_eth_ipv4_udp,	ICE_INSET_NONE,	(uint64_t)(&hint_2)},
+	{pattern_eth_ipv4_tcp,	ICE_INSET_NONE,	(uint64_t)(&hint_3)},
+	{pattern_eth_ipv4_sctp,	ICE_INSET_NONE,	(uint64_t)(&hint_4)},
+	{pattern_eth_ipv6,	ICE_INSET_NONE,	(uint64_t)(&hint_5)},
+	{pattern_eth_ipv6_udp,	ICE_INSET_NONE,	(uint64_t)(&hint_6)},
+	{pattern_eth_ipv6_tcp,	ICE_INSET_NONE,	(uint64_t)(&hint_7)},
+	{pattern_eth_ipv6_sctp,	ICE_INSET_NONE,	(uint64_t)(&hint_8)},
+	{pattern_empty,		ICE_INSET_NONE,	(uint64_t)(&hint_0)},
+};
+
+/* Supported pattern for comms package. */
+static struct ice_pattern_match_item ice_hash_pattern_list_comms[] = {
+	{pattern_eth_ipv4,		 ICE_INSET_NONE,  (uint64_t)(&hint_1)},
+	{pattern_eth_ipv4_udp,		 ICE_INSET_NONE,  (uint64_t)(&hint_2)},
+	{pattern_eth_ipv4_tcp,		 ICE_INSET_NONE,  (uint64_t)(&hint_3)},
+	{pattern_eth_ipv4_sctp,		 ICE_INSET_NONE,  (uint64_t)(&hint_4)},
+	{pattern_eth_ipv6,		 ICE_INSET_NONE,  (uint64_t)(&hint_5)},
+	{pattern_eth_ipv6_udp,		 ICE_INSET_NONE,  (uint64_t)(&hint_6)},
+	{pattern_eth_ipv6_tcp,		 ICE_INSET_NONE,  (uint64_t)(&hint_7)},
+	{pattern_eth_ipv6_sctp,		 ICE_INSET_NONE,  (uint64_t)(&hint_8)},
+	{pattern_empty,			 ICE_INSET_NONE,  (uint64_t)(&hint_0)},
+	{pattern_eth_ipv4_gtpu_ipv4,	 ICE_INSET_NONE,  (uint64_t)(&hint_9)},
+	{pattern_eth_ipv4_gtpu_ipv4_udp, ICE_INSET_NONE,  (uint64_t)(&hint_9)},
+	{pattern_eth_ipv4_gtpu_ipv4_tcp, ICE_INSET_NONE,  (uint64_t)(&hint_9)},
+	{pattern_eth_pppoes_ipv4,	 ICE_INSET_NONE,  (uint64_t)(&hint_10)},
+	{pattern_eth_pppoes_ipv4_udp,	 ICE_INSET_NONE,  (uint64_t)(&hint_11)},
+	{pattern_eth_pppoes_ipv4_tcp,	 ICE_INSET_NONE,  (uint64_t)(&hint_12)},
+	{pattern_eth_pppoes_ipv4_sctp,	 ICE_INSET_NONE,  (uint64_t)(&hint_13)},
+};
+
+/**
+ * The first member is input set combination,
+ * the second member is hash fields.
+ */
+struct ice_hash_match_type ice_hash_type_list[] = {
+	{ETH_RSS_IPV4|ETH_RSS_L3_SRC_ONLY,					BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
+	{ETH_RSS_IPV4|ETH_RSS_L3_DST_ONLY,					BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
+	{ETH_RSS_IPV4,								ICE_FLOW_HASH_IPV4},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|ICE_FLOW_HASH_UDP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|ICE_FLOW_HASH_UDP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_UDP,						ICE_HASH_UDP_IPV4},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|ICE_FLOW_HASH_TCP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|ICE_FLOW_HASH_TCP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_TCP,						ICE_HASH_TCP_IPV4},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)|ICE_FLOW_HASH_SCTP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)|ICE_FLOW_HASH_SCTP_PORT},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV4|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV4_SCTP,						ICE_HASH_SCTP_IPV4},
+	{ETH_RSS_IPV6|ETH_RSS_L3_SRC_ONLY,					BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
+	{ETH_RSS_IPV6|ETH_RSS_L3_DST_ONLY,					BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
+	{ETH_RSS_IPV6,								ICE_FLOW_HASH_IPV6},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|ICE_FLOW_HASH_UDP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|ICE_FLOW_HASH_UDP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_UDP,						ICE_HASH_UDP_IPV6},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|ICE_FLOW_HASH_TCP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|ICE_FLOW_HASH_TCP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_TCP,						ICE_HASH_TCP_IPV6},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_SRC_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_SRC_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)|ICE_FLOW_HASH_SCTP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_SRC_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_DST_ONLY|ETH_RSS_L4_DST_ONLY,	BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L3_DST_ONLY,				BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)|ICE_FLOW_HASH_SCTP_PORT},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L4_SRC_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP|ETH_RSS_L4_DST_ONLY,				ICE_FLOW_HASH_IPV6|BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
+	{ETH_RSS_NONFRAG_IPV6_SCTP,						ICE_HASH_SCTP_IPV6},
+};
+
+static struct ice_flow_engine ice_hash_engine = {
+	.init = ice_hash_init,
+	.create = ice_hash_create,
+	.destroy = ice_hash_destroy,
+	.uninit = ice_hash_uninit,
+	.free = ice_hash_free,
+	.type = ICE_FLOW_ENGINE_HASH,
+};
+
+/* Register parser for os package. */
+static struct ice_flow_parser ice_hash_parser_os = {
+	.engine = &ice_hash_engine,
+	.array = ice_hash_pattern_list_os,
+	.array_len = RTE_DIM(ice_hash_pattern_list_os),
+	.parse_pattern_action = ice_hash_parse_pattern_action,
+	.stage = ICE_FLOW_STAGE_RSS,
+};
+
+/* Register parser for comms package. */
+static struct ice_flow_parser ice_hash_parser_comms = {
+	.engine = &ice_hash_engine,
+	.array = ice_hash_pattern_list_comms,
+	.array_len = RTE_DIM(ice_hash_pattern_list_comms),
+	.parse_pattern_action = ice_hash_parse_pattern_action,
+	.stage = ICE_FLOW_STAGE_RSS,
+};
+
+RTE_INIT(ice_hash_engine_init)
+{
+	struct ice_flow_engine *engine = &ice_hash_engine;
+	ice_register_flow_engine(engine);
+}
+
+static int
+ice_hash_init(struct ice_adapter *ad)
+{
+	struct ice_flow_parser *parser = NULL;
+
+	if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
+		parser = &ice_hash_parser_os;
+	else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
+		parser = &ice_hash_parser_comms;
+
+	return ice_register_parser(parser, ad);
+}
+
+static int
+ice_hash_check_inset(const struct rte_flow_item pattern[],
+		struct rte_flow_error *error)
+{
+	const struct rte_flow_item *item = pattern;
+
+	for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
+		if (item->last) {
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_ITEM, item,
+					"Not support range");
+			return -rte_errno;
+		}
+
+		/* Ignore spec and mask. */
+		if (item->spec || item->mask) {
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_ITEM, item,
+					"Invalid spec/mask.");
+			return -rte_errno;
+		}
+	}
+
+	return 0;
+}
+
+static int
+ice_hash_parse_action(struct ice_pattern_match_item *pattern_match_item,
+		const struct rte_flow_action actions[],
+		void **meta,
+		struct rte_flow_error *error)
+{
+	const struct rte_flow_action *action;
+	enum rte_flow_action_type action_type;
+	const struct rte_flow_action_rss *rss;
+	struct rss_type_match_hdr *m = (struct rss_type_match_hdr *)
+				(pattern_match_item->meta);
+	uint32_t type_list_len = RTE_DIM(ice_hash_type_list);
+	struct ice_hash_match_type *type_match_item;
+
+	/* Supported action is RSS. */
+	for (action = actions; action->type !=
+		RTE_FLOW_ACTION_TYPE_END; action++) {
+		action_type = action->type;
+		switch (action_type) {
+		case RTE_FLOW_ACTION_TYPE_RSS:
+			rss = action->conf;
+			uint16_t i;
+
+			/* Check if pattern is empty. */
+			if (((pattern_match_item->pattern_list) !=
+				pattern_empty) && (rss->func ==
+				RTE_ETH_HASH_FUNCTION_SIMPLE_XOR))
+				return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ACTION, action,
+					"Not supported flow");
+
+			/* Check if rss types match pattern. */
+			if (rss->func != RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
+				if (((rss->types & ETH_RSS_IPV4) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV4_UDP) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV4_TCP) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV4_SCTP) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_IPV6) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV6_UDP) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV6_TCP) != m->eth_rss_hint) ||
+				((rss->types & ETH_RSS_NONFRAG_IPV6_SCTP) != m->eth_rss_hint))
+					return rte_flow_error_set(error,
+					ENOTSUP, RTE_FLOW_ERROR_TYPE_ACTION,
+					action, "Not supported RSS types");
+			}
+
+			if (rss->level)
+				return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ACTION, action,
+					"a nonzero RSS encapsulation level is not supported");
+
+			if (rss->key_len == 0)
+				return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ACTION, action,
+					"RSS hash key_len mustn't be 0");
+
+			if ((rss->queue_num) > ICE_ACTION_RSS_MAX_QUEUE_NUM)
+				return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ACTION, action,
+					"too many queues for RSS context");
+
+			/* Check hash function and save it to rss_meta. */
+			if (rss->func ==
+				RTE_ETH_HASH_FUNCTION_SIMPLE_XOR)
+				((struct rss_meta *)*meta)->hash_function =
+				RTE_ETH_HASH_FUNCTION_SIMPLE_XOR;
+
+			if (rss->func ==
+				RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ)
+				((struct rss_meta *)*meta)->hash_function =
+				RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ;
+
+			type_match_item = rte_zmalloc("ice_type_match_item",
+					sizeof(struct ice_hash_match_type), 0);
+			if (!type_match_item) {
+				rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+					"No memory for type_match_item");
+				return -ENOMEM;
+			}
+
+			/* Find matched hash fields according to hash type. */
+			for (i = 0; i < type_list_len; i++) {
+				if (rss->types ==
+					ice_hash_type_list[i].hash_type) {
+					type_match_item->hash_type =
+						ice_hash_type_list[i].hash_type;
+					type_match_item->hash_flds =
+						ice_hash_type_list[i].hash_flds;
+				}
+			}
+
+			/* Save hash fileds to rss_meta. */
+			((struct rss_meta *)*meta)->hash_flds =
+					type_match_item->hash_flds;
+
+			rte_free(type_match_item);
+			break;
+
+		case RTE_FLOW_ACTION_TYPE_END:
+			return 0;
+			break;
+
+		default:
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_ACTION, action,
+					"Invalid action.");
+			return -rte_errno;
+		}
+	}
+
+	return 0;
+}
+
+static int
+ice_hash_parse_pattern_action(__rte_unused struct ice_adapter *ad,
+			struct ice_pattern_match_item *array,
+			uint32_t array_len,
+			const struct rte_flow_item pattern[],
+			const struct rte_flow_action actions[],
+			void **meta,
+			struct rte_flow_error *error)
+{
+	int ret = 0;
+	struct ice_pattern_match_item *pattern_match_item;
+	struct rss_meta *rss_meta_ptr;
+
+	rss_meta_ptr = rte_zmalloc(NULL, sizeof(*rss_meta_ptr), 0);
+	if (!rss_meta_ptr) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+				"No memory for rss_meta_ptr");
+		return -ENOMEM;
+	}
+
+	/* Check rss supported pattern and find matched pattern. */
+	pattern_match_item = ice_search_pattern_match_item(pattern,
+					array, array_len, error);
+	if (!pattern_match_item)
+		return -rte_errno;
+
+	ret = ice_hash_check_inset(pattern, error);
+	if (ret)
+		return -rte_errno;
+
+	/* Save protocol header to rss_meta. */
+	*meta = rss_meta_ptr;
+	((struct rss_meta *)*meta)->pkt_hdr = ((struct rss_type_match_hdr *)
+		(pattern_match_item->meta))->hdr_mask;
+
+	/* Check rss action. */
+	ret = ice_hash_parse_action(pattern_match_item, actions, meta, error);
+	if (ret)
+		return -rte_errno;
+
+	rte_free(pattern_match_item);
+
+	return 0;
+}
+
+static int
+ice_hash_create(struct ice_adapter *ad,
+		struct rte_flow *flow,
+		void *meta,
+		struct rte_flow_error *error)
+{
+	struct ice_pf *pf = &ad->pf;
+	struct ice_hw *hw = ICE_PF_TO_HW(pf);
+	struct ice_vsi *vsi = pf->main_vsi;
+	int ret;
+	uint32_t reg;
+	struct ice_rss_cfg *filter_ptr;
+
+	uint32_t headermask = ((struct rss_meta *)meta)->pkt_hdr;
+	uint64_t hash_field = ((struct rss_meta *)meta)->hash_flds;
+	uint8_t hash_function = ((struct rss_meta *)meta)->hash_function;
+
+	filter_ptr = rte_zmalloc("ice_rss_filter",
+				sizeof(struct ice_rss_cfg), 0);
+	if (!filter_ptr) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+				"No memory for filter_ptr");
+		return -ENOMEM;
+	}
+
+	if (hash_function == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
+		/* Enable registers for simple_xor hash function. */
+		reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
+		reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
+			(2 << VSIQF_HASH_CTL_HASH_SCHEME_S);
+		ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
+
+		filter_ptr->symm = hash_function;
+
+		goto out;
+	} else if (hash_function == RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
+		ret = ice_add_rss_cfg(hw, vsi->idx, hash_field, headermask, 1);
+		if (ret) {
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+					"rss flow create fail");
+			goto error;
+		}
+	} else {
+		ret = ice_add_rss_cfg(hw, vsi->idx, hash_field, headermask, 0);
+		if (ret) {
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+					"rss flow create fail");
+			goto error;
+		}
+	}
+
+	filter_ptr->packet_hdr = headermask;
+	filter_ptr->hashed_flds = hash_field;
+
+out:
+	flow->rule = filter_ptr;
+	rte_free(meta);
+	return 0;
+
+error:
+	rte_free(filter_ptr);
+	rte_free(meta);
+	return -rte_errno;
+}
+
+static int
+ice_hash_destroy(struct ice_adapter *ad,
+		struct rte_flow *flow,
+		struct rte_flow_error *error)
+{
+	struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(ad);
+	struct ice_hw *hw = ICE_PF_TO_HW(pf);
+	struct ice_vsi *vsi = pf->main_vsi;
+	int ret;
+	uint32_t reg;
+	struct ice_rss_cfg *filter_ptr;
+
+	filter_ptr = (struct ice_rss_cfg *)flow->rule;
+
+	if (filter_ptr->symm == RTE_ETH_HASH_FUNCTION_SIMPLE_XOR) {
+		/* Return to symmetric_toeplitz state. */
+		reg = ICE_READ_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id));
+		reg = (reg & (~VSIQF_HASH_CTL_HASH_SCHEME_M)) |
+			(1 << VSIQF_HASH_CTL_HASH_SCHEME_S);
+		ICE_WRITE_REG(hw, VSIQF_HASH_CTL(vsi->vsi_id), reg);
+	} else {
+		ret = ice_rem_vsi_rss_cfg(hw, vsi->idx);
+		if (ret) {
+			rte_flow_error_set(error, EINVAL,
+					RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+					"rss flow destroy fail");
+			goto error;
+		}
+	}
+
+	rte_free(filter_ptr);
+	return 0;
+
+error:
+	rte_free(filter_ptr);
+	return -rte_errno;
+}
+
+static void
+ice_hash_uninit(struct ice_adapter *ad)
+{
+	if (ad->active_pkg_type == ICE_PKG_TYPE_OS_DEFAULT)
+		ice_unregister_parser(&ice_hash_parser_os, ad);
+	else if (ad->active_pkg_type == ICE_PKG_TYPE_COMMS)
+		ice_unregister_parser(&ice_hash_parser_comms, ad);
+}
+
+static void
+ice_hash_free(struct rte_flow *flow)
+{
+	rte_free(flow->rule);
+}
diff --git a/drivers/net/ice/meson.build b/drivers/net/ice/meson.build
index 6828170..b957649 100644
--- a/drivers/net/ice/meson.build
+++ b/drivers/net/ice/meson.build
@@ -10,6 +10,7 @@ sources = files(
 	'ice_ethdev.c',
 	'ice_rxtx.c',
 	'ice_switch_filter.c',
+	'ice_hash.c',
 	'ice_generic_flow.c'
 	)
 
-- 
1.8.3.1