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
29 struct ice_indr_block_priv {
30 struct net_device *netdev;
31 struct ice_netdev_priv *np;
32 struct list_head list;
33 };
34
35 struct ice_tc_flower_action {
36 u32 tc_class;
37 enum ice_sw_fwd_act_type fltr_act;
38 };
39
40 struct 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
45 struct ice_tc_l2_hdr {
46 u8 dst_mac[ETH_ALEN];
47 u8 src_mac[ETH_ALEN];
48 __be16 n_proto; /* Ethernet Protocol */
49 };
50
51 struct 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
74 struct ice_tc_l4_hdr {
75 __be16 dst_port;
76 __be16 src_port;
77 };
78
79 struct 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
93 enum ice_eswitch_fltr_direction {
94 ICE_ESWITCH_FLTR_INGRESS,
95 ICE_ESWITCH_FLTR_EGRESS,
96 };
97
98 struct 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 */
ice_is_chnl_fltr(struct ice_tc_flower_fltr * f)143 static 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 */
ice_chnl_dmac_fltr_cnt(struct ice_pf * pf)152 static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
153 {
154 return pf->num_dmac_chnl_fltrs;
155 }
156
157 int
158 ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
159 struct flow_cls_offload *cls_flower);
160 int
161 ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
162 void ice_replay_tc_fltrs(struct ice_pf *pf);
163 bool ice_is_tunnel_supported(struct net_device *dev);
164
165 #endif /* _ICE_TC_LIB_H_ */
166