LXR linux/drivers/net/ethernet/intel/ice/ice_tc

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright (C) 2019-2021, Intel Corporation. */
   3
   4#ifndef _ICE_TC_LIB_H_
   5#define _ICE_TC_LIB_H_
   6
   7#define ICE_TC_FLWR_FIELD_DST_MAC               BIT(0)
   8#define ICE_TC_FLWR_FIELD_SRC_MAC               BIT(1)
   9#define ICE_TC_FLWR_FIELD_VLAN                  BIT(2)
  10#define ICE_TC_FLWR_FIELD_DEST_IPV4             BIT(3)
  11#define ICE_TC_FLWR_FIELD_SRC_IPV4              BIT(4)
  12#define ICE_TC_FLWR_FIELD_DEST_IPV6             BIT(5)
  13#define ICE_TC_FLWR_FIELD_SRC_IPV6              BIT(6)
  14#define ICE_TC_FLWR_FIELD_DEST_L4_PORT          BIT(7)
  15#define ICE_TC_FLWR_FIELD_SRC_L4_PORT           BIT(8)
  16#define ICE_TC_FLWR_FIELD_TENANT_ID             BIT(9)
  17#define ICE_TC_FLWR_FIELD_ENC_DEST_IPV4         BIT(10)
  18#define ICE_TC_FLWR_FIELD_ENC_SRC_IPV4          BIT(11)
  19#define ICE_TC_FLWR_FIELD_ENC_DEST_IPV6         BIT(12)
  20#define ICE_TC_FLWR_FIELD_ENC_SRC_IPV6          BIT(13)
  21#define ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT      BIT(14)
  22#define ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT       BIT(15)
  23#define ICE_TC_FLWR_FIELD_ENC_DST_MAC           BIT(16)
  24#define ICE_TC_FLWR_FIELD_ETH_TYPE_ID           BIT(17)
  25#define ICE_TC_FLWR_FIELD_ENC_OPTS              BIT(18)
  26
  27#define ICE_TC_FLOWER_MASK_32   0xFFFFFFFF
  28
  29struct ice_indr_block_priv {
  30        struct net_device *netdev;
  31        struct ice_netdev_priv *np;
  32        struct list_head list;
  33};
  34
  35struct ice_tc_flower_action {
  36        u32 tc_class;
  37        enum ice_sw_fwd_act_type fltr_act;
  38};
  39
  40struct ice_tc_vlan_hdr {
  41        __be16 vlan_id; /* Only last 12 bits valid */
  42        u16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */
  43};
  44
  45struct ice_tc_l2_hdr {
  46        u8 dst_mac[ETH_ALEN];
  47        u8 src_mac[ETH_ALEN];
  48        __be16 n_proto;    /* Ethernet Protocol */
  49};
  50
  51struct ice_tc_l3_hdr {
  52        u8 ip_proto;    /* IPPROTO value */
  53        union {
  54                struct {
  55                        struct in_addr dst_ip;
  56                        struct in_addr src_ip;
  57                } v4;
  58                struct {
  59                        struct in6_addr dst_ip6;
  60                        struct in6_addr src_ip6;
  61                } v6;
  62        } ip;
  63#define dst_ipv6        ip.v6.dst_ip6.s6_addr32
  64#define dst_ipv6_addr   ip.v6.dst_ip6.s6_addr
  65#define src_ipv6        ip.v6.src_ip6.s6_addr32
  66#define src_ipv6_addr   ip.v6.src_ip6.s6_addr
  67#define dst_ipv4        ip.v4.dst_ip.s_addr
  68#define src_ipv4        ip.v4.src_ip.s_addr
  69
  70        u8 tos;
  71        u8 ttl;
  72};
  73
  74struct ice_tc_l4_hdr {
  75        __be16 dst_port;
  76        __be16 src_port;
  77};
  78
  79struct ice_tc_flower_lyr_2_4_hdrs {
  80        /* L2 layer fields with their mask */
  81        struct ice_tc_l2_hdr l2_key;
  82        struct ice_tc_l2_hdr l2_mask;
  83        struct ice_tc_vlan_hdr vlan_hdr;
  84        /* L3 (IPv4[6]) layer fields with their mask */
  85        struct ice_tc_l3_hdr l3_key;
  86        struct ice_tc_l3_hdr l3_mask;
  87
  88        /* L4 layer fields with their mask */
  89        struct ice_tc_l4_hdr l4_key;
  90        struct ice_tc_l4_hdr l4_mask;
  91};
  92
  93enum ice_eswitch_fltr_direction {
  94        ICE_ESWITCH_FLTR_INGRESS,
  95        ICE_ESWITCH_FLTR_EGRESS,
  96};
  97
  98struct ice_tc_flower_fltr {
  99        struct hlist_node tc_flower_node;
 100
 101        /* cookie becomes filter_rule_id if rule is added successfully */
 102        unsigned long cookie;
 103
 104        /* add_adv_rule returns information like recipe ID, rule_id. Store
 105         * those values since they are needed to remove advanced rule
 106         */
 107        u16 rid;
 108        u16 rule_id;
 109        /* this could be queue/vsi_idx (sw handle)/queue_group, depending upon
 110         * destination type
 111         */
 112        u16 dest_id;
 113        /* if dest_id is vsi_idx, then need to store destination VSI ptr */
 114        struct ice_vsi *dest_vsi;
 115        /* direction of fltr for eswitch use case */
 116        enum ice_eswitch_fltr_direction direction;
 117
 118        /* Parsed TC flower configuration params */
 119        struct ice_tc_flower_lyr_2_4_hdrs outer_headers;
 120        struct ice_tc_flower_lyr_2_4_hdrs inner_headers;
 121        struct ice_vsi *src_vsi;
 122        __be32 tenant_id;
 123        struct gtp_pdu_session_info gtp_pdu_info_keys;
 124        struct gtp_pdu_session_info gtp_pdu_info_masks;
 125        u32 flags;
 126        u8 tunnel_type;
 127        struct ice_tc_flower_action     action;
 128
 129        /* cache ptr which is used wherever needed to communicate netlink
 130         * messages
 131         */
 132        struct netlink_ext_ack *extack;
 133};
 134
 135/**
 136 * ice_is_chnl_fltr - is this a valid channel filter
 137 * @f: Pointer to tc-flower filter
 138 *
 139 * Criteria to determine of given filter is valid channel filter
 140 * or not is based on its "destination". If destination is hw_tc (aka tc_class)
 141 * and it is non-zero, then it is valid channel (aka ADQ) filter
 142 */
 143static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f)
 144{
 145        return !!f->action.tc_class;
 146}
 147
 148/**
 149 * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count
 150 * @pf: Pointer to PF
 151 */
 152static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
 153{
 154        return pf->num_dmac_chnl_fltrs;
 155}
 156
 157int
 158ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
 159                   struct flow_cls_offload *cls_flower);
 160int
 161ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
 162void ice_replay_tc_fltrs(struct ice_pf *pf);
 163bool ice_is_tunnel_supported(struct net_device *dev);
 164
 165#endif /* _ICE_TC_LIB_H_ */
 166