mirror of
https://gitee.com/bianbu-linux/linux-6.6
synced 2025-07-22 01:43:37 -04:00
4c99bc96e0
Add support for parsing TTL and ToS (Hop Limit and Traffic Class) tc fields and matching on those fields in filters. Incomplete part of implementation was already in place (getting enc_ip and enc_tos from flow_match_ip and writing them to filter header). Note: matching on ipv6 ip_ttl, enc_ttl and enc_tos is currently not supported by the DDP package. Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
182 lines
4.9 KiB
C
182 lines
4.9 KiB
C
/* 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_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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u32 tc_class;
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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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u16 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_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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/* 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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/* this could be queue/vsi_idx (sw handle)/queue_group, depending upon
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* destination type
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*/
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u16 dest_id;
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/* if dest_id is vsi_idx, then need to store destination VSI ptr */
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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". If destination is hw_tc (aka tc_class)
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* and it is non-zero, then it is valid channel (aka ADQ) filter
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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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return !!f->action.tc_class;
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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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#endif /* _ICE_TC_LIB_H_ */
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