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numam-dpdk/drivers/net/iavf/iavf_hash.c
Qi Zhang 91f27b2e39 net/iavf: refactor RSS 
Current RSS implementation is not easy to scale and maintain.
The patch refactor the code base on below design:

1. iavf_pattern_match_item->input_set_mask is the superset of
   ETH_RSS_xxx.
2. iavf_pattern_match_item->meta is the virtchnl_proto_hdrs template.
3. iavf_hash_parse_pattern will generate pattern hint.
4. iavf_hash_parse_action will refine the virtchnl_proto_hdrs base on
   pattern hint and ETH_RSS_xxx.
5. The refine process include
   1) refine field selector of l2, l3, l4.
   2) insert gtpu proto_hdr at the beginning base on pattern hint.
   3) refine field selector for gtpu header.

The patch reduce the code from 4000+ line to less than 1000.

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Jeff Guo <jia.guo@intel.com>
2020-09-18 18:55:08 +02:00

981 lines
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2020 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 "iavf_log.h"
#include "iavf.h"
#include "iavf_generic_flow.h"
#define IAVF_PHINT_NONE 0
#define IAVF_PHINT_GTPU BIT_ULL(0)
#define IAVF_PHINT_GTPU_EH BIT_ULL(1)
#define IAVF_PHINT_GTPU_EH_DWN BIT_ULL(2)
#define IAVF_PHINT_GTPU_EH_UP BIT_ULL(3)
#define IAVF_PHINT_GTPU_MSK (IAVF_PHINT_GTPU | \
IAVF_PHINT_GTPU_EH | \
IAVF_PHINT_GTPU_EH_DWN | \
IAVF_PHINT_GTPU_EH_UP)
#define IAVF_GTPU_EH_DWNLINK 0
#define IAVF_GTPU_EH_UPLINK 1
struct iavf_hash_match_type {
uint64_t hash_type;
struct virtchnl_proto_hdrs *proto_hdrs;
uint64_t pattern_hint;
};
struct iavf_rss_meta {
struct virtchnl_proto_hdrs proto_hdrs;
enum virtchnl_rss_algorithm rss_algorithm;
};
struct iavf_hash_flow_cfg {
struct virtchnl_rss_cfg *rss_cfg;
bool simple_xor;
};
static int
iavf_hash_init(struct iavf_adapter *ad);
static int
iavf_hash_create(struct iavf_adapter *ad, struct rte_flow *flow, void *meta,
struct rte_flow_error *error);
static int
iavf_hash_destroy(struct iavf_adapter *ad, struct rte_flow *flow,
struct rte_flow_error *error);
static void
iavf_hash_uninit(struct iavf_adapter *ad);
static void
iavf_hash_free(struct rte_flow *flow);
static int
iavf_hash_parse_pattern_action(struct iavf_adapter *ad,
struct iavf_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);
#define FIELD_SELECTOR(proto_hdr_field) \
(1UL << ((proto_hdr_field) & PROTO_HDR_FIELD_MASK))
#define BUFF_NOUSED 0
#define proto_hdr_eth { \
VIRTCHNL_PROTO_HDR_ETH, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), {BUFF_NOUSED} }
#define proto_hdr_svlan { \
VIRTCHNL_PROTO_HDR_S_VLAN, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID), {BUFF_NOUSED} }
#define proto_hdr_cvlan { \
VIRTCHNL_PROTO_HDR_C_VLAN, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID), {BUFF_NOUSED} }
#define proto_hdr_ipv4 { \
VIRTCHNL_PROTO_HDR_IPV4, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), {BUFF_NOUSED} }
#define proto_hdr_ipv6 { \
VIRTCHNL_PROTO_HDR_IPV6, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), {BUFF_NOUSED} }
#define proto_hdr_udp { \
VIRTCHNL_PROTO_HDR_UDP, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), {BUFF_NOUSED} }
#define proto_hdr_tcp { \
VIRTCHNL_PROTO_HDR_TCP, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), {BUFF_NOUSED} }
#define proto_hdr_sctp { \
VIRTCHNL_PROTO_HDR_SCTP, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) | \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), {BUFF_NOUSED} }
#define proto_hdr_esp { \
VIRTCHNL_PROTO_HDR_ESP, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI), {BUFF_NOUSED} }
#define proto_hdr_ah { \
VIRTCHNL_PROTO_HDR_AH, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI), {BUFF_NOUSED} }
#define proto_hdr_l2tpv3 { \
VIRTCHNL_PROTO_HDR_L2TPV3, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID), {BUFF_NOUSED} }
#define proto_hdr_pfcp { \
VIRTCHNL_PROTO_HDR_PFCP, \
FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID), {BUFF_NOUSED} }
#define TUNNEL_LEVEL_OUTER 0
#define TUNNEL_LEVEL_INNER 1
/* proto_hdrs template */
struct virtchnl_proto_hdrs outer_ipv4_tmplt = {
TUNNEL_LEVEL_OUTER, 4,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4}
};
struct virtchnl_proto_hdrs outer_ipv4_udp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4,
proto_hdr_udp}
};
struct virtchnl_proto_hdrs outer_ipv4_tcp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4,
proto_hdr_tcp}
};
struct virtchnl_proto_hdrs outer_ipv4_sctp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv4,
proto_hdr_sctp}
};
struct virtchnl_proto_hdrs outer_ipv6_tmplt = {
TUNNEL_LEVEL_OUTER, 4,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6}
};
struct virtchnl_proto_hdrs outer_ipv6_udp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6,
proto_hdr_udp}
};
struct virtchnl_proto_hdrs outer_ipv6_tcp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6,
proto_hdr_tcp}
};
struct virtchnl_proto_hdrs outer_ipv6_sctp_tmplt = {
TUNNEL_LEVEL_OUTER, 5,
{proto_hdr_eth, proto_hdr_svlan, proto_hdr_cvlan, proto_hdr_ipv6,
proto_hdr_sctp}
};
struct virtchnl_proto_hdrs inner_ipv4_tmplt = {
TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv4}
};
struct virtchnl_proto_hdrs inner_ipv4_udp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4, proto_hdr_udp}
};
struct virtchnl_proto_hdrs inner_ipv4_tcp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4, proto_hdr_tcp}
};
struct virtchnl_proto_hdrs inner_ipv4_sctp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv4, proto_hdr_sctp}
};
struct virtchnl_proto_hdrs inner_ipv6_tmplt = {
TUNNEL_LEVEL_INNER, 1, {proto_hdr_ipv6}
};
struct virtchnl_proto_hdrs inner_ipv6_udp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6, proto_hdr_udp}
};
struct virtchnl_proto_hdrs inner_ipv6_tcp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6, proto_hdr_tcp}
};
struct virtchnl_proto_hdrs inner_ipv6_sctp_tmplt = {
TUNNEL_LEVEL_INNER, 2, {proto_hdr_ipv6, proto_hdr_sctp}
};
struct virtchnl_proto_hdrs ipv4_esp_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_esp}
};
struct virtchnl_proto_hdrs ipv4_udp_esp_tmplt = {
TUNNEL_LEVEL_OUTER, 3,
{proto_hdr_ipv4, proto_hdr_udp, proto_hdr_esp}
};
struct virtchnl_proto_hdrs ipv4_ah_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_ah}
};
struct virtchnl_proto_hdrs ipv6_esp_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_esp}
};
struct virtchnl_proto_hdrs ipv6_udp_esp_tmplt = {
TUNNEL_LEVEL_OUTER, 3,
{proto_hdr_ipv6, proto_hdr_udp, proto_hdr_esp}
};
struct virtchnl_proto_hdrs ipv6_ah_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_ah}
};
struct virtchnl_proto_hdrs ipv4_l2tpv3_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_l2tpv3}
};
struct virtchnl_proto_hdrs ipv6_l2tpv3_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_l2tpv3}
};
struct virtchnl_proto_hdrs ipv4_pfcp_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv4, proto_hdr_pfcp}
};
struct virtchnl_proto_hdrs ipv6_pfcp_tmplt = {
TUNNEL_LEVEL_OUTER, 2, {proto_hdr_ipv6, proto_hdr_pfcp}
};
/* rss type super set */
/* IPv4 outer */
#define IAVF_RSS_TYPE_OUTER_IPV4 (ETH_RSS_ETH | ETH_RSS_IPV4)
#define IAVF_RSS_TYPE_OUTER_IPV4_UDP (IAVF_RSS_TYPE_OUTER_IPV4 | \
ETH_RSS_NONFRAG_IPV4_UDP)
#define IAVF_RSS_TYPE_OUTER_IPV4_TCP (IAVF_RSS_TYPE_OUTER_IPV4 | \
ETH_RSS_NONFRAG_IPV4_TCP)
#define IAVF_RSS_TYPE_OUTER_IPV4_SCTP (IAVF_RSS_TYPE_OUTER_IPV4 | \
ETH_RSS_NONFRAG_IPV4_SCTP)
/* IPv6 outer */
#define IAVF_RSS_TYPE_OUTER_IPV6 (ETH_RSS_ETH | ETH_RSS_IPV6)
#define IAVF_RSS_TYPE_OUTER_IPV6_UDP (IAVF_RSS_TYPE_OUTER_IPV6 | \
ETH_RSS_NONFRAG_IPV6_UDP)
#define IAVF_RSS_TYPE_OUTER_IPV6_TCP (IAVF_RSS_TYPE_OUTER_IPV6 | \
ETH_RSS_NONFRAG_IPV6_TCP)
#define IAVF_RSS_TYPE_OUTER_IPV6_SCTP (IAVF_RSS_TYPE_OUTER_IPV6 | \
ETH_RSS_NONFRAG_IPV6_SCTP)
/* VLAN IPV4 */
#define IAVF_RSS_TYPE_VLAN_IPV4 (IAVF_RSS_TYPE_OUTER_IPV4 | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV4_UDP (IAVF_RSS_TYPE_OUTER_IPV4_UDP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV4_TCP (IAVF_RSS_TYPE_OUTER_IPV4_TCP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV4_SCTP (IAVF_RSS_TYPE_OUTER_IPV4_SCTP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
/* VLAN IPv6 */
#define IAVF_RSS_TYPE_VLAN_IPV6 (IAVF_RSS_TYPE_OUTER_IPV6 | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV6_UDP (IAVF_RSS_TYPE_OUTER_IPV6_UDP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV6_TCP (IAVF_RSS_TYPE_OUTER_IPV6_TCP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
#define IAVF_RSS_TYPE_VLAN_IPV6_SCTP (IAVF_RSS_TYPE_OUTER_IPV6_SCTP | \
ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
/* IPv4 inner */
#define IAVF_RSS_TYPE_INNER_IPV4 ETH_RSS_IPV4
#define IAVF_RSS_TYPE_INNER_IPV4_UDP (ETH_RSS_IPV4 | \
ETH_RSS_NONFRAG_IPV4_UDP)
#define IAVF_RSS_TYPE_INNER_IPV4_TCP (ETH_RSS_IPV4 | \
ETH_RSS_NONFRAG_IPV4_TCP)
#define IAVF_RSS_TYPE_INNER_IPV4_SCTP (ETH_RSS_IPV4 | \
ETH_RSS_NONFRAG_IPV4_SCTP)
/* IPv6 inner */
#define IAVF_RSS_TYPE_INNER_IPV6 ETH_RSS_IPV6
#define IAVF_RSS_TYPE_INNER_IPV6_UDP (ETH_RSS_IPV6 | \
ETH_RSS_NONFRAG_IPV6_UDP)
#define IAVF_RSS_TYPE_INNER_IPV6_TCP (ETH_RSS_IPV6 | \
ETH_RSS_NONFRAG_IPV6_TCP)
#define IAVF_RSS_TYPE_INNER_IPV6_SCTP (ETH_RSS_IPV6 | \
ETH_RSS_NONFRAG_IPV6_SCTP)
/* GTPU IPv4 */
#define IAVF_RSS_TYPE_GTPU_IPV4 (IAVF_RSS_TYPE_INNER_IPV4 | \
ETH_RSS_GTPU)
#define IAVF_RSS_TYPE_GTPU_IPV4_UDP (IAVF_RSS_TYPE_INNER_IPV4_UDP | \
ETH_RSS_GTPU)
#define IAVF_RSS_TYPE_GTPU_IPV4_TCP (IAVF_RSS_TYPE_INNER_IPV4_TCP | \
ETH_RSS_GTPU)
/* GTPU IPv6 */
#define IAVF_RSS_TYPE_GTPU_IPV6 (IAVF_RSS_TYPE_INNER_IPV6 | \
ETH_RSS_GTPU)
#define IAVF_RSS_TYPE_GTPU_IPV6_UDP (IAVF_RSS_TYPE_INNER_IPV6_UDP | \
ETH_RSS_GTPU)
#define IAVF_RSS_TYPE_GTPU_IPV6_TCP (IAVF_RSS_TYPE_INNER_IPV6_TCP | \
ETH_RSS_GTPU)
/* ESP, AH, L2TPV3 and PFCP */
#define IAVF_RSS_TYPE_IPV4_ESP (ETH_RSS_ESP | ETH_RSS_IPV4)
#define IAVF_RSS_TYPE_IPV4_AH (ETH_RSS_AH | ETH_RSS_IPV4)
#define IAVF_RSS_TYPE_IPV6_ESP (ETH_RSS_ESP | ETH_RSS_IPV6)
#define IAVF_RSS_TYPE_IPV6_AH (ETH_RSS_AH | ETH_RSS_IPV6)
#define IAVF_RSS_TYPE_IPV4_L2TPV3 (ETH_RSS_L2TPV3 | ETH_RSS_IPV4)
#define IAVF_RSS_TYPE_IPV6_L2TPV3 (ETH_RSS_L2TPV3 | ETH_RSS_IPV6)
#define IAVF_RSS_TYPE_IPV4_PFCP (ETH_RSS_PFCP | ETH_RSS_IPV4)
#define IAVF_RSS_TYPE_IPV6_PFCP (ETH_RSS_PFCP | ETH_RSS_IPV6)
/**
* Supported pattern for hash.
* The first member is pattern item type,
* the second member is input set mask,
* the third member is virtchnl_proto_hdrs template
*/
static struct iavf_pattern_match_item iavf_hash_pattern_list[] = {
/* IPv4 */
{iavf_pattern_eth_ipv4, IAVF_RSS_TYPE_OUTER_IPV4, &outer_ipv4_tmplt},
{iavf_pattern_eth_ipv4_udp, IAVF_RSS_TYPE_OUTER_IPV4_UDP, &outer_ipv4_udp_tmplt},
{iavf_pattern_eth_ipv4_tcp, IAVF_RSS_TYPE_OUTER_IPV4_TCP, &outer_ipv4_tcp_tmplt},
{iavf_pattern_eth_ipv4_sctp, IAVF_RSS_TYPE_OUTER_IPV4_SCTP, &outer_ipv4_sctp_tmplt},
{iavf_pattern_eth_vlan_ipv4, IAVF_RSS_TYPE_VLAN_IPV4, &outer_ipv4_tmplt},
{iavf_pattern_eth_vlan_ipv4_udp, IAVF_RSS_TYPE_VLAN_IPV4_UDP, &outer_ipv4_udp_tmplt},
{iavf_pattern_eth_vlan_ipv4_tcp, IAVF_RSS_TYPE_VLAN_IPV4_TCP, &outer_ipv4_tcp_tmplt},
{iavf_pattern_eth_vlan_ipv4_sctp, IAVF_RSS_TYPE_VLAN_IPV4_SCTP, &outer_ipv4_sctp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv4, IAVF_RSS_TYPE_GTPU_IPV4, &inner_ipv4_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv4_udp, IAVF_RSS_TYPE_GTPU_IPV4_UDP, &inner_ipv4_udp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv4_tcp, IAVF_RSS_TYPE_GTPU_IPV4_TCP, &inner_ipv4_tcp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv4, IAVF_RSS_TYPE_GTPU_IPV4, &inner_ipv4_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv4_udp, IAVF_RSS_TYPE_GTPU_IPV4_UDP, &inner_ipv4_udp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv4_tcp, IAVF_RSS_TYPE_GTPU_IPV4_TCP, &inner_ipv4_tcp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv4, IAVF_RSS_TYPE_GTPU_IPV4, &inner_ipv4_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp, IAVF_RSS_TYPE_GTPU_IPV4_UDP, &inner_ipv4_udp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp, IAVF_RSS_TYPE_GTPU_IPV4_TCP, &inner_ipv4_tcp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv4, IAVF_RSS_TYPE_GTPU_IPV4, &inner_ipv4_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv4_udp, IAVF_RSS_TYPE_GTPU_IPV4_UDP, &inner_ipv4_udp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv4_tcp, IAVF_RSS_TYPE_GTPU_IPV4_TCP, &inner_ipv4_tcp_tmplt},
{iavf_pattern_eth_ipv4_esp, IAVF_RSS_TYPE_IPV4_ESP, &ipv4_esp_tmplt},
{iavf_pattern_eth_ipv4_udp_esp, IAVF_RSS_TYPE_IPV4_ESP, &ipv4_udp_esp_tmplt},
{iavf_pattern_eth_ipv4_ah, IAVF_RSS_TYPE_IPV4_AH, &ipv4_ah_tmplt},
{iavf_pattern_eth_ipv4_l2tpv3, IAVF_RSS_TYPE_IPV4_L2TPV3, &ipv4_l2tpv3_tmplt},
{iavf_pattern_eth_ipv4_pfcp, IAVF_RSS_TYPE_IPV4_PFCP, &ipv4_pfcp_tmplt},
/* IPv6 */
{iavf_pattern_eth_ipv6, IAVF_RSS_TYPE_OUTER_IPV6, &outer_ipv6_tmplt},
{iavf_pattern_eth_ipv6_udp, IAVF_RSS_TYPE_OUTER_IPV6_UDP, &outer_ipv6_udp_tmplt},
{iavf_pattern_eth_ipv6_tcp, IAVF_RSS_TYPE_OUTER_IPV6_TCP, &outer_ipv6_tcp_tmplt},
{iavf_pattern_eth_ipv6_sctp, IAVF_RSS_TYPE_OUTER_IPV6_SCTP, &outer_ipv6_sctp_tmplt},
{iavf_pattern_eth_vlan_ipv6, IAVF_RSS_TYPE_VLAN_IPV6, &outer_ipv6_tmplt},
{iavf_pattern_eth_vlan_ipv6_udp, IAVF_RSS_TYPE_VLAN_IPV6_UDP, &outer_ipv6_udp_tmplt},
{iavf_pattern_eth_vlan_ipv6_tcp, IAVF_RSS_TYPE_VLAN_IPV6_TCP, &outer_ipv6_tcp_tmplt},
{iavf_pattern_eth_vlan_ipv6_sctp, IAVF_RSS_TYPE_VLAN_IPV6_SCTP, &outer_ipv6_sctp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv6, IAVF_RSS_TYPE_GTPU_IPV6, &inner_ipv6_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv6_udp, IAVF_RSS_TYPE_GTPU_IPV6_UDP, &inner_ipv6_udp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_ipv6_tcp, IAVF_RSS_TYPE_GTPU_IPV6_TCP, &inner_ipv6_tcp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv6, IAVF_RSS_TYPE_GTPU_IPV6, &inner_ipv6_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv6_udp, IAVF_RSS_TYPE_GTPU_IPV6_UDP, &inner_ipv6_udp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_ipv6_tcp, IAVF_RSS_TYPE_GTPU_IPV6_TCP, &inner_ipv6_tcp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv6, IAVF_RSS_TYPE_GTPU_IPV6, &inner_ipv6_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv6_udp, IAVF_RSS_TYPE_GTPU_IPV6_UDP, &inner_ipv6_udp_tmplt},
{iavf_pattern_eth_ipv4_gtpu_eh_ipv6_tcp, IAVF_RSS_TYPE_GTPU_IPV6_TCP, &inner_ipv6_tcp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv6, IAVF_RSS_TYPE_GTPU_IPV6, &inner_ipv6_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv6_udp, IAVF_RSS_TYPE_GTPU_IPV6_UDP, &inner_ipv6_udp_tmplt},
{iavf_pattern_eth_ipv6_gtpu_eh_ipv6_tcp, IAVF_RSS_TYPE_GTPU_IPV6_TCP, &inner_ipv6_tcp_tmplt},
{iavf_pattern_eth_ipv6_esp, IAVF_RSS_TYPE_IPV6_ESP, &ipv6_esp_tmplt},
{iavf_pattern_eth_ipv6_udp_esp, IAVF_RSS_TYPE_IPV6_ESP, &ipv6_udp_esp_tmplt},
{iavf_pattern_eth_ipv6_ah, IAVF_RSS_TYPE_IPV6_AH, &ipv6_ah_tmplt},
{iavf_pattern_eth_ipv6_l2tpv3, IAVF_RSS_TYPE_IPV6_L2TPV3, &ipv6_l2tpv3_tmplt},
{iavf_pattern_eth_ipv6_pfcp, IAVF_RSS_TYPE_IPV6_PFCP, &ipv6_pfcp_tmplt},
};
struct virtchnl_proto_hdrs *iavf_hash_default_hdrs[] = {
&inner_ipv4_tmplt,
&inner_ipv4_udp_tmplt,
&inner_ipv4_tcp_tmplt,
&inner_ipv4_sctp_tmplt,
&inner_ipv6_tmplt,
&inner_ipv6_udp_tmplt,
&inner_ipv6_tcp_tmplt,
&inner_ipv6_sctp_tmplt,
};
static struct iavf_flow_engine iavf_hash_engine = {
.init = iavf_hash_init,
.create = iavf_hash_create,
.destroy = iavf_hash_destroy,
.uninit = iavf_hash_uninit,
.free = iavf_hash_free,
.type = IAVF_FLOW_ENGINE_HASH,
};
/* Register parser for comms package. */
static struct iavf_flow_parser iavf_hash_parser = {
.engine = &iavf_hash_engine,
.array = iavf_hash_pattern_list,
.array_len = RTE_DIM(iavf_hash_pattern_list),
.parse_pattern_action = iavf_hash_parse_pattern_action,
.stage = IAVF_FLOW_STAGE_RSS,
};
static int
iavf_hash_default_set(struct iavf_adapter *ad, bool add)
{
struct virtchnl_rss_cfg *rss_cfg;
uint16_t i;
rss_cfg = rte_zmalloc("iavf rss rule",
sizeof(struct virtchnl_rss_cfg), 0);
if (!rss_cfg)
return -ENOMEM;
for (i = 0; i < RTE_DIM(iavf_hash_default_hdrs); i++) {
rss_cfg->proto_hdrs = *iavf_hash_default_hdrs[i];
rss_cfg->rss_algorithm = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
iavf_add_del_rss_cfg(ad, rss_cfg, add);
}
return 0;
}
RTE_INIT(iavf_hash_engine_init)
{
struct iavf_flow_engine *engine = &iavf_hash_engine;
iavf_register_flow_engine(engine);
}
static int
iavf_hash_init(struct iavf_adapter *ad)
{
struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
struct iavf_flow_parser *parser;
int ret;
if (!vf->vf_res)
return -EINVAL;
if (!(vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF))
return -ENOTSUP;
parser = &iavf_hash_parser;
ret = iavf_register_parser(parser, ad);
if (ret) {
PMD_DRV_LOG(ERR, "fail to register hash parser");
return ret;
}
ret = iavf_hash_default_set(ad, true);
if (ret) {
PMD_DRV_LOG(ERR, "fail to set default RSS");
iavf_unregister_parser(parser, ad);
}
return ret;
}
static int
iavf_hash_parse_pattern(struct iavf_pattern_match_item *pattern_match_item,
const struct rte_flow_item pattern[], uint64_t *phint,
struct rte_flow_error *error)
{
const struct rte_flow_item *item = pattern;
const struct rte_flow_item_gtp_psc *psc;
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;
}
switch (item->type) {
case RTE_FLOW_ITEM_TYPE_GTPU:
*phint |= IAVF_PHINT_GTPU;
break;
case RTE_FLOW_ITEM_TYPE_GTP_PSC:
*phint |= IAVF_PHINT_GTPU_EH;
psc = item->spec;
if (!psc)
break;
else if (psc->pdu_type == IAVF_GTPU_EH_UPLINK)
*phint |= IAVF_PHINT_GTPU_EH_UP;
else if (psc->pdu_type == IAVF_GTPU_EH_DWNLINK)
*phint |= IAVF_PHINT_GTPU_EH_DWN;
break;
default:
break;
}
}
/* update and restore pattern hint */
*phint |= *(uint64_t *)(pattern_match_item->meta);
return 0;
}
/* refine proto hdrs base on l2, l3, l4 rss type */
static void
iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
uint64_t rss_type)
{
struct virtchnl_proto_hdr *hdr;
int i;
for (i = 0; i < proto_hdrs->count; i++) {
hdr = &proto_hdrs->proto_hdr[i];
switch (hdr->type) {
case VIRTCHNL_PROTO_HDR_ETH:
if (!(rss_type & ETH_RSS_ETH))
hdr->field_selector = 0;
else if (rss_type & ETH_RSS_L2_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_ETH_DST);
else if (rss_type & ETH_RSS_L2_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_ETH_SRC);
break;
case VIRTCHNL_PROTO_HDR_IPV4:
if (rss_type &
(ETH_RSS_IPV4 |
ETH_RSS_NONFRAG_IPV4_UDP |
ETH_RSS_NONFRAG_IPV4_TCP |
ETH_RSS_NONFRAG_IPV4_SCTP)) {
if (rss_type & ETH_RSS_L3_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_IPV4_DST);
else if (rss_type & ETH_RSS_L3_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_IPV4_SRC);
else if (rss_type &
(ETH_RSS_L4_SRC_ONLY |
ETH_RSS_L4_DST_ONLY))
hdr->field_selector = 0;
} else {
hdr->field_selector = 0;
}
break;
case VIRTCHNL_PROTO_HDR_IPV6:
if (rss_type &
(ETH_RSS_IPV6 |
ETH_RSS_NONFRAG_IPV6_UDP |
ETH_RSS_NONFRAG_IPV6_TCP |
ETH_RSS_NONFRAG_IPV6_SCTP)) {
if (rss_type & ETH_RSS_L3_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_IPV6_DST);
else if (rss_type & ETH_RSS_L3_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_IPV6_SRC);
else if (rss_type &
(ETH_RSS_L4_SRC_ONLY |
ETH_RSS_L4_DST_ONLY))
hdr->field_selector = 0;
} else {
hdr->field_selector = 0;
}
break;
case VIRTCHNL_PROTO_HDR_UDP:
if (rss_type &
(ETH_RSS_NONFRAG_IPV4_UDP |
ETH_RSS_NONFRAG_IPV6_UDP)) {
if (rss_type & ETH_RSS_L4_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_UDP_DST_PORT);
else if (rss_type & ETH_RSS_L4_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_UDP_SRC_PORT);
else if (rss_type &
(ETH_RSS_L3_SRC_ONLY |
ETH_RSS_L3_DST_ONLY))
hdr->field_selector = 0;
} else {
hdr->field_selector = 0;
}
break;
case VIRTCHNL_PROTO_HDR_TCP:
if (rss_type &
(ETH_RSS_NONFRAG_IPV4_TCP |
ETH_RSS_NONFRAG_IPV6_TCP)) {
if (rss_type & ETH_RSS_L4_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_TCP_DST_PORT);
else if (rss_type & ETH_RSS_L4_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_TCP_SRC_PORT);
else if (rss_type &
(ETH_RSS_L3_SRC_ONLY |
ETH_RSS_L3_DST_ONLY))
hdr->field_selector = 0;
} else {
hdr->field_selector = 0;
}
break;
case VIRTCHNL_PROTO_HDR_SCTP:
if (rss_type &
(ETH_RSS_NONFRAG_IPV4_SCTP |
ETH_RSS_NONFRAG_IPV6_SCTP)) {
if (rss_type & ETH_RSS_L4_SRC_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_SCTP_DST_PORT);
else if (rss_type & ETH_RSS_L4_DST_ONLY)
VIRTCHNL_DEL_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_TCP_SRC_PORT);
else if (rss_type &
(ETH_RSS_L3_SRC_ONLY |
ETH_RSS_L3_DST_ONLY))
hdr->field_selector = 0;
} else {
hdr->field_selector = 0;
}
break;
case VIRTCHNL_PROTO_HDR_S_VLAN:
if (!(rss_type & ETH_RSS_S_VLAN))
hdr->field_selector = 0;
break;
case VIRTCHNL_PROTO_HDR_C_VLAN:
if (!(rss_type & ETH_RSS_C_VLAN))
hdr->field_selector = 0;
break;
case VIRTCHNL_PROTO_HDR_L2TPV3:
if (!(rss_type & ETH_RSS_L2TPV3))
hdr->field_selector = 0;
break;
case VIRTCHNL_PROTO_HDR_ESP:
if (!(rss_type & ETH_RSS_ESP))
hdr->field_selector = 0;
break;
case VIRTCHNL_PROTO_HDR_AH:
if (!(rss_type & ETH_RSS_AH))
hdr->field_selector = 0;
break;
case VIRTCHNL_PROTO_HDR_PFCP:
if (!(rss_type & ETH_RSS_PFCP))
hdr->field_selector = 0;
break;
default:
break;
}
}
}
/* refine proto hdrs base on gtpu rss type */
static void
iavf_refine_proto_hdrs_gtpu(struct virtchnl_proto_hdrs *proto_hdrs,
uint64_t rss_type)
{
struct virtchnl_proto_hdr *hdr;
int i;
if (!(rss_type & ETH_RSS_GTPU))
return;
for (i = 0; i < proto_hdrs->count; i++) {
hdr = &proto_hdrs->proto_hdr[i];
switch (hdr->type) {
case VIRTCHNL_PROTO_HDR_GTPU_IP:
VIRTCHNL_ADD_PROTO_HDR_FIELD(hdr,
VIRTCHNL_PROTO_HDR_GTPU_IP_TEID);
break;
default:
break;
}
}
}
static void
iavf_refine_proto_hdrs_by_pattern(struct virtchnl_proto_hdrs *proto_hdrs,
uint64_t phint)
{
struct virtchnl_proto_hdr *hdr1;
struct virtchnl_proto_hdr *hdr2;
int i;
if (!(phint & IAVF_PHINT_GTPU_MSK) ||
proto_hdrs->tunnel_level == 0)
return;
/* shift headers 1 layer */
for (i = proto_hdrs->count; i > 0; i--) {
hdr1 = &proto_hdrs->proto_hdr[i];
hdr2 = &proto_hdrs->proto_hdr[i - 1];
*hdr1 = *hdr2;
}
/* adding gtpu header at layer 0 */
proto_hdrs->count++;
hdr1 = &proto_hdrs->proto_hdr[0];
hdr1->field_selector = 0;
if (phint & IAVF_PHINT_GTPU_EH_DWN)
VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_DWN);
else if (phint & IAVF_PHINT_GTPU_EH_UP)
VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH_PDU_UP);
else if (phint & IAVF_PHINT_GTPU_EH)
VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_EH);
else if (phint & IAVF_PHINT_GTPU)
VIRTCHNL_SET_PROTO_HDR_TYPE(hdr1, GTPU_IP);
}
static void iavf_refine_proto_hdrs(struct virtchnl_proto_hdrs *proto_hdrs,
uint64_t rss_type, uint64_t phint)
{
iavf_refine_proto_hdrs_l234(proto_hdrs, rss_type);
iavf_refine_proto_hdrs_by_pattern(proto_hdrs, phint);
iavf_refine_proto_hdrs_gtpu(proto_hdrs, rss_type);
}
static uint64_t invalid_rss_comb[] = {
ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_UDP,
ETH_RSS_IPV6 | ETH_RSS_NONFRAG_IPV6_UDP,
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
};
static bool
iavf_any_invalid_rss_type(uint64_t rss_type, uint64_t allow_rss_type)
{
uint32_t i;
/* check invalid combination */
for (i = 0; i < RTE_DIM(invalid_rss_comb); i++) {
if (__builtin_popcountll(rss_type & invalid_rss_comb[i]) > 1)
return true;
}
/* check not allowed RSS type */
#define _RSS_ATTR_ (ETH_RSS_L3_SRC_ONLY | \
ETH_RSS_L3_DST_ONLY | \
ETH_RSS_L4_SRC_ONLY | \
ETH_RSS_L4_DST_ONLY | \
ETH_RSS_L2_SRC_ONLY | \
ETH_RSS_L2_DST_ONLY | \
RTE_ETH_RSS_L3_PRE32 | \
RTE_ETH_RSS_L3_PRE40 | \
RTE_ETH_RSS_L3_PRE48 | \
RTE_ETH_RSS_L3_PRE56 | \
RTE_ETH_RSS_L3_PRE64 | \
RTE_ETH_RSS_L3_PRE96)
rss_type &= ~_RSS_ATTR_;
return ((rss_type & allow_rss_type) != rss_type);
}
static int
iavf_hash_parse_action(struct iavf_pattern_match_item *match_item,
const struct rte_flow_action actions[],
uint64_t pattern_hint, void **meta,
struct rte_flow_error *error)
{
struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)*meta;
struct virtchnl_proto_hdrs *proto_hdrs;
enum rte_flow_action_type action_type;
const struct rte_flow_action_rss *rss;
const struct rte_flow_action *action;
uint64_t rss_type;
/* 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;
rss_type = rss->types;
if (rss->func ==
RTE_ETH_HASH_FUNCTION_SIMPLE_XOR){
rss_meta->rss_algorithm =
VIRTCHNL_RSS_ALG_XOR_ASYMMETRIC;
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"function simple_xor is not supported");
} else if (rss->func ==
RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ) {
rss_meta->rss_algorithm =
VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
} else {
rss_meta->rss_algorithm =
VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
}
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)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"a nonzero RSS key_len is not supported");
if (rss->queue_num)
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"a non-NULL RSS queue is not supported");
/**
* Check simultaneous use of SRC_ONLY and DST_ONLY
* of the same level.
*/
rss_type = rte_eth_rss_hf_refine(rss_type);
if (iavf_any_invalid_rss_type(rss_type,
match_item->input_set_mask))
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
action, "RSS type not supported");
proto_hdrs = match_item->meta;
rss_meta->proto_hdrs = *proto_hdrs;
iavf_refine_proto_hdrs(&rss_meta->proto_hdrs,
rss_type, pattern_hint);
break;
case RTE_FLOW_ACTION_TYPE_END:
break;
default:
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION, action,
"Invalid action.");
return -rte_errno;
}
}
return 0;
}
static int
iavf_hash_parse_pattern_action(__rte_unused struct iavf_adapter *ad,
struct iavf_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)
{
struct iavf_pattern_match_item *pattern_match_item;
struct iavf_rss_meta *rss_meta_ptr;
uint64_t phint = IAVF_PHINT_NONE;
int ret = 0;
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 =
iavf_search_pattern_match_item(pattern, array, array_len,
error);
if (!pattern_match_item) {
ret = -rte_errno;
goto error;
}
ret = iavf_hash_parse_pattern(pattern_match_item, pattern, &phint,
error);
if (ret)
goto error;
ret = iavf_hash_parse_action(pattern_match_item, actions, phint,
(void **)&rss_meta_ptr, error);
error:
if (!ret && meta)
*meta = rss_meta_ptr;
else
rte_free(rss_meta_ptr);
rte_free(pattern_match_item);
return ret;
}
static int
iavf_hash_create(__rte_unused struct iavf_adapter *ad,
__rte_unused struct rte_flow *flow, void *meta,
__rte_unused struct rte_flow_error *error)
{
struct iavf_rss_meta *rss_meta = (struct iavf_rss_meta *)meta;
struct virtchnl_rss_cfg *rss_cfg;
int ret = 0;
rss_cfg = rte_zmalloc("iavf rss rule",
sizeof(struct virtchnl_rss_cfg), 0);
if (!rss_cfg) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"No memory for rss rule");
return -ENOMEM;
}
rss_cfg->proto_hdrs = rss_meta->proto_hdrs;
rss_cfg->rss_algorithm = rss_meta->rss_algorithm;
ret = iavf_add_del_rss_cfg(ad, rss_cfg, true);
if (!ret) {
flow->rule = rss_cfg;
} else {
PMD_DRV_LOG(ERR, "fail to add RSS configure");
rte_flow_error_set(error, -ret,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to add rss rule.");
rte_free(rss_cfg);
return -rte_errno;
}
rte_free(meta);
return ret;
}
static int
iavf_hash_destroy(__rte_unused struct iavf_adapter *ad,
struct rte_flow *flow,
__rte_unused struct rte_flow_error *error)
{
struct virtchnl_rss_cfg *rss_cfg;
int ret = 0;
rss_cfg = (struct virtchnl_rss_cfg *)flow->rule;
ret = iavf_add_del_rss_cfg(ad, rss_cfg, false);
if (ret) {
PMD_DRV_LOG(ERR, "fail to del RSS configure");
rte_flow_error_set(error, -ret,
RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
"Failed to delete rss rule.");
return -rte_errno;
}
return ret;
}
static void
iavf_hash_uninit(struct iavf_adapter *ad)
{
if (iavf_hash_default_set(ad, false))
PMD_DRV_LOG(ERR, "fail to delete default RSS");
iavf_unregister_parser(&iavf_hash_parser, ad);
}
static void
iavf_hash_free(struct rte_flow *flow)
{
rte_free(flow->rule);
}
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