intel/ice/ice_tc_lib.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /* Copyright (C) 2019-2021, Intel Corporation. */
0003
0004 #ifndef _ICE_TC_LIB_H_
0005 #define _ICE_TC_LIB_H_
0006
0007 #define ICE_TC_FLWR_FIELD_DST_MAC       BIT(0)
0008 #define ICE_TC_FLWR_FIELD_SRC_MAC       BIT(1)
0009 #define ICE_TC_FLWR_FIELD_VLAN          BIT(2)
0010 #define ICE_TC_FLWR_FIELD_DEST_IPV4     BIT(3)
0011 #define ICE_TC_FLWR_FIELD_SRC_IPV4      BIT(4)
0012 #define ICE_TC_FLWR_FIELD_DEST_IPV6     BIT(5)
0013 #define ICE_TC_FLWR_FIELD_SRC_IPV6      BIT(6)
0014 #define ICE_TC_FLWR_FIELD_DEST_L4_PORT      BIT(7)
0015 #define ICE_TC_FLWR_FIELD_SRC_L4_PORT       BIT(8)
0016 #define ICE_TC_FLWR_FIELD_TENANT_ID     BIT(9)
0017 #define ICE_TC_FLWR_FIELD_ENC_DEST_IPV4     BIT(10)
0018 #define ICE_TC_FLWR_FIELD_ENC_SRC_IPV4      BIT(11)
0019 #define ICE_TC_FLWR_FIELD_ENC_DEST_IPV6     BIT(12)
0020 #define ICE_TC_FLWR_FIELD_ENC_SRC_IPV6      BIT(13)
0021 #define ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT  BIT(14)
0022 #define ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT   BIT(15)
0023 #define ICE_TC_FLWR_FIELD_ENC_DST_MAC       BIT(16)
0024 #define ICE_TC_FLWR_FIELD_ETH_TYPE_ID       BIT(17)
0025 #define ICE_TC_FLWR_FIELD_ENC_OPTS      BIT(18)
0026 #define ICE_TC_FLWR_FIELD_CVLAN         BIT(19)
0027 #define ICE_TC_FLWR_FIELD_PPPOE_SESSID      BIT(20)
0028 #define ICE_TC_FLWR_FIELD_PPP_PROTO     BIT(21)
0029
0030 #define ICE_TC_FLOWER_MASK_32   0xFFFFFFFF
0031
0032 struct ice_indr_block_priv {
0033     struct net_device *netdev;
0034     struct ice_netdev_priv *np;
0035     struct list_head list;
0036 };
0037
0038 struct ice_tc_flower_action {
0039     u32 tc_class;
0040     enum ice_sw_fwd_act_type fltr_act;
0041 };
0042
0043 struct ice_tc_vlan_hdr {
0044     __be16 vlan_id; /* Only last 12 bits valid */
0045     u16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */
0046     __be16 vlan_tpid;
0047 };
0048
0049 struct ice_tc_pppoe_hdr {
0050     __be16 session_id;
0051     __be16 ppp_proto;
0052 };
0053
0054 struct ice_tc_l2_hdr {
0055     u8 dst_mac[ETH_ALEN];
0056     u8 src_mac[ETH_ALEN];
0057     __be16 n_proto;    /* Ethernet Protocol */
0058 };
0059
0060 struct ice_tc_l3_hdr {
0061     u8 ip_proto;    /* IPPROTO value */
0062     union {
0063         struct {
0064             struct in_addr dst_ip;
0065             struct in_addr src_ip;
0066         } v4;
0067         struct {
0068             struct in6_addr dst_ip6;
0069             struct in6_addr src_ip6;
0070         } v6;
0071     } ip;
0072 #define dst_ipv6    ip.v6.dst_ip6.s6_addr32
0073 #define dst_ipv6_addr   ip.v6.dst_ip6.s6_addr
0074 #define src_ipv6    ip.v6.src_ip6.s6_addr32
0075 #define src_ipv6_addr   ip.v6.src_ip6.s6_addr
0076 #define dst_ipv4    ip.v4.dst_ip.s_addr
0077 #define src_ipv4    ip.v4.src_ip.s_addr
0078
0079     u8 tos;
0080     u8 ttl;
0081 };
0082
0083 struct ice_tc_l4_hdr {
0084     __be16 dst_port;
0085     __be16 src_port;
0086 };
0087
0088 struct ice_tc_flower_lyr_2_4_hdrs {
0089     /* L2 layer fields with their mask */
0090     struct ice_tc_l2_hdr l2_key;
0091     struct ice_tc_l2_hdr l2_mask;
0092     struct ice_tc_vlan_hdr vlan_hdr;
0093     struct ice_tc_vlan_hdr cvlan_hdr;
0094     struct ice_tc_pppoe_hdr pppoe_hdr;
0095     /* L3 (IPv4[6]) layer fields with their mask */
0096     struct ice_tc_l3_hdr l3_key;
0097     struct ice_tc_l3_hdr l3_mask;
0098
0099     /* L4 layer fields with their mask */
0100     struct ice_tc_l4_hdr l4_key;
0101     struct ice_tc_l4_hdr l4_mask;
0102 };
0103
0104 enum ice_eswitch_fltr_direction {
0105     ICE_ESWITCH_FLTR_INGRESS,
0106     ICE_ESWITCH_FLTR_EGRESS,
0107 };
0108
0109 struct ice_tc_flower_fltr {
0110     struct hlist_node tc_flower_node;
0111
0112     /* cookie becomes filter_rule_id if rule is added successfully */
0113     unsigned long cookie;
0114
0115     /* add_adv_rule returns information like recipe ID, rule_id. Store
0116      * those values since they are needed to remove advanced rule
0117      */
0118     u16 rid;
0119     u16 rule_id;
0120     /* this could be queue/vsi_idx (sw handle)/queue_group, depending upon
0121      * destination type
0122      */
0123     u16 dest_id;
0124     /* if dest_id is vsi_idx, then need to store destination VSI ptr */
0125     struct ice_vsi *dest_vsi;
0126     /* direction of fltr for eswitch use case */
0127     enum ice_eswitch_fltr_direction direction;
0128
0129     /* Parsed TC flower configuration params */
0130     struct ice_tc_flower_lyr_2_4_hdrs outer_headers;
0131     struct ice_tc_flower_lyr_2_4_hdrs inner_headers;
0132     struct ice_vsi *src_vsi;
0133     __be32 tenant_id;
0134     struct gtp_pdu_session_info gtp_pdu_info_keys;
0135     struct gtp_pdu_session_info gtp_pdu_info_masks;
0136     u32 flags;
0137     u8 tunnel_type;
0138     struct ice_tc_flower_action action;
0139
0140     /* cache ptr which is used wherever needed to communicate netlink
0141      * messages
0142      */
0143     struct netlink_ext_ack *extack;
0144 };
0145
0146 /**
0147  * ice_is_chnl_fltr - is this a valid channel filter
0148  * @f: Pointer to tc-flower filter
0149  *
0150  * Criteria to determine of given filter is valid channel filter
0151  * or not is based on its "destination". If destination is hw_tc (aka tc_class)
0152  * and it is non-zero, then it is valid channel (aka ADQ) filter
0153  */
0154 static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f)
0155 {
0156     return !!f->action.tc_class;
0157 }
0158
0159 /**
0160  * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count
0161  * @pf: Pointer to PF
0162  */
0163 static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
0164 {
0165     return pf->num_dmac_chnl_fltrs;
0166 }
0167
0168 int
0169 ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
0170            struct flow_cls_offload *cls_flower);
0171 int
0172 ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
0173 void ice_replay_tc_fltrs(struct ice_pf *pf);
0174 bool ice_is_tunnel_supported(struct net_device *dev);
0175
0176 #endif /* _ICE_TC_LIB_H_ */