225 lines
6.1 KiB
C
225 lines
6.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) 2019-2021, Intel Corporation. */
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#ifndef _ICE_TC_LIB_H_
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#define _ICE_TC_LIB_H_
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#define ICE_TC_FLWR_FIELD_DST_MAC BIT(0)
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#define ICE_TC_FLWR_FIELD_SRC_MAC BIT(1)
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#define ICE_TC_FLWR_FIELD_VLAN BIT(2)
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#define ICE_TC_FLWR_FIELD_DEST_IPV4 BIT(3)
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#define ICE_TC_FLWR_FIELD_SRC_IPV4 BIT(4)
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#define ICE_TC_FLWR_FIELD_DEST_IPV6 BIT(5)
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#define ICE_TC_FLWR_FIELD_SRC_IPV6 BIT(6)
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#define ICE_TC_FLWR_FIELD_DEST_L4_PORT BIT(7)
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#define ICE_TC_FLWR_FIELD_SRC_L4_PORT BIT(8)
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#define ICE_TC_FLWR_FIELD_TENANT_ID BIT(9)
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#define ICE_TC_FLWR_FIELD_ENC_DEST_IPV4 BIT(10)
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#define ICE_TC_FLWR_FIELD_ENC_SRC_IPV4 BIT(11)
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#define ICE_TC_FLWR_FIELD_ENC_DEST_IPV6 BIT(12)
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#define ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 BIT(13)
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#define ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT BIT(14)
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#define ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT BIT(15)
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#define ICE_TC_FLWR_FIELD_ENC_DST_MAC BIT(16)
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#define ICE_TC_FLWR_FIELD_ETH_TYPE_ID BIT(17)
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#define ICE_TC_FLWR_FIELD_ENC_OPTS BIT(18)
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#define ICE_TC_FLWR_FIELD_CVLAN BIT(19)
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#define ICE_TC_FLWR_FIELD_PPPOE_SESSID BIT(20)
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#define ICE_TC_FLWR_FIELD_PPP_PROTO BIT(21)
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#define ICE_TC_FLWR_FIELD_IP_TOS BIT(22)
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#define ICE_TC_FLWR_FIELD_IP_TTL BIT(23)
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#define ICE_TC_FLWR_FIELD_ENC_IP_TOS BIT(24)
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#define ICE_TC_FLWR_FIELD_ENC_IP_TTL BIT(25)
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#define ICE_TC_FLWR_FIELD_L2TPV3_SESSID BIT(26)
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#define ICE_TC_FLWR_FIELD_VLAN_PRIO BIT(27)
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#define ICE_TC_FLWR_FIELD_CVLAN_PRIO BIT(28)
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#define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF
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#define ICE_IPV6_HDR_TC_MASK 0xFF00000
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struct ice_indr_block_priv {
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struct net_device *netdev;
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struct ice_netdev_priv *np;
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struct list_head list;
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};
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struct ice_tc_flower_action {
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/* forward action specific params */
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union {
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struct {
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u32 tc_class; /* forward to hw_tc */
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u32 rsvd;
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} tc;
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struct {
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u16 queue; /* forward to queue */
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/* To add filter in HW, absolute queue number in global
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* space of queues (between 0...N) is needed
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*/
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u16 hw_queue;
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} q;
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} fwd;
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enum ice_sw_fwd_act_type fltr_act;
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};
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struct ice_tc_vlan_hdr {
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__be16 vlan_id; /* Only last 12 bits valid */
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__be16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */
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__be16 vlan_tpid;
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};
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struct ice_tc_pppoe_hdr {
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__be16 session_id;
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__be16 ppp_proto;
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};
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struct ice_tc_l2_hdr {
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u8 dst_mac[ETH_ALEN];
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u8 src_mac[ETH_ALEN];
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__be16 n_proto; /* Ethernet Protocol */
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};
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struct ice_tc_l3_hdr {
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u8 ip_proto; /* IPPROTO value */
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union {
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struct {
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struct in_addr dst_ip;
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struct in_addr src_ip;
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} v4;
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struct {
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struct in6_addr dst_ip6;
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struct in6_addr src_ip6;
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} v6;
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} ip;
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#define dst_ipv6 ip.v6.dst_ip6.s6_addr32
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#define dst_ipv6_addr ip.v6.dst_ip6.s6_addr
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#define src_ipv6 ip.v6.src_ip6.s6_addr32
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#define src_ipv6_addr ip.v6.src_ip6.s6_addr
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#define dst_ipv4 ip.v4.dst_ip.s_addr
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#define src_ipv4 ip.v4.src_ip.s_addr
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u8 tos;
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u8 ttl;
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};
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struct ice_tc_l2tpv3_hdr {
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__be32 session_id;
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};
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struct ice_tc_l4_hdr {
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__be16 dst_port;
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__be16 src_port;
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};
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struct ice_tc_flower_lyr_2_4_hdrs {
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/* L2 layer fields with their mask */
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struct ice_tc_l2_hdr l2_key;
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struct ice_tc_l2_hdr l2_mask;
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struct ice_tc_vlan_hdr vlan_hdr;
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struct ice_tc_vlan_hdr cvlan_hdr;
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struct ice_tc_pppoe_hdr pppoe_hdr;
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struct ice_tc_l2tpv3_hdr l2tpv3_hdr;
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/* L3 (IPv4[6]) layer fields with their mask */
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struct ice_tc_l3_hdr l3_key;
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struct ice_tc_l3_hdr l3_mask;
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/* L4 layer fields with their mask */
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struct ice_tc_l4_hdr l4_key;
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struct ice_tc_l4_hdr l4_mask;
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};
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enum ice_eswitch_fltr_direction {
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ICE_ESWITCH_FLTR_INGRESS,
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ICE_ESWITCH_FLTR_EGRESS,
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};
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struct ice_tc_flower_fltr {
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struct hlist_node tc_flower_node;
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/* cookie becomes filter_rule_id if rule is added successfully */
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unsigned long cookie;
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/* add_adv_rule returns information like recipe ID, rule_id. Store
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* those values since they are needed to remove advanced rule
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*/
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u16 rid;
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u16 rule_id;
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/* VSI handle of the destination VSI (it could be main PF VSI, CHNL_VSI,
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* VF VSI)
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*/
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u16 dest_vsi_handle;
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/* ptr to destination VSI */
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struct ice_vsi *dest_vsi;
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/* direction of fltr for eswitch use case */
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enum ice_eswitch_fltr_direction direction;
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/* Parsed TC flower configuration params */
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struct ice_tc_flower_lyr_2_4_hdrs outer_headers;
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struct ice_tc_flower_lyr_2_4_hdrs inner_headers;
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struct ice_vsi *src_vsi;
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__be32 tenant_id;
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struct gtp_pdu_session_info gtp_pdu_info_keys;
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struct gtp_pdu_session_info gtp_pdu_info_masks;
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u32 flags;
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u8 tunnel_type;
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struct ice_tc_flower_action action;
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/* cache ptr which is used wherever needed to communicate netlink
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* messages
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*/
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struct netlink_ext_ack *extack;
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};
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/**
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* ice_is_chnl_fltr - is this a valid channel filter
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* @f: Pointer to tc-flower filter
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*
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* Criteria to determine of given filter is valid channel filter
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* or not is based on its destination.
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* For forward to VSI action, if destination is valid hw_tc (aka tc_class)
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* and in supported range of TCs for ADQ, then return true.
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* For forward to queue, as long as dest_vsi is valid and it is of type
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* VSI_CHNL (PF ADQ VSI is of type VSI_CHNL), return true.
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* NOTE: For forward to queue, correct dest_vsi is still set in tc_fltr based
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* on destination queue specified.
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*/
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static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f)
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{
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if (f->action.fltr_act == ICE_FWD_TO_VSI)
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return f->action.fwd.tc.tc_class >= ICE_CHNL_START_TC &&
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f->action.fwd.tc.tc_class < ICE_CHNL_MAX_TC;
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else if (f->action.fltr_act == ICE_FWD_TO_Q)
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return f->dest_vsi && f->dest_vsi->type == ICE_VSI_CHNL;
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return false;
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}
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/**
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* ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count
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* @pf: Pointer to PF
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*/
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static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
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{
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return pf->num_dmac_chnl_fltrs;
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}
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int
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ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
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struct flow_cls_offload *cls_flower);
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int
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ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
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void ice_replay_tc_fltrs(struct ice_pf *pf);
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bool ice_is_tunnel_supported(struct net_device *dev);
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static inline bool ice_is_forward_action(enum ice_sw_fwd_act_type fltr_act)
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{
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switch (fltr_act) {
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case ICE_FWD_TO_VSI:
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case ICE_FWD_TO_Q:
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return true;
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default:
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return false;
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}
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}
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#endif /* _ICE_TC_LIB_H_ */
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