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 #define ICE_TC_FLWR_FIELD_CVLAN BIT(19)
27 #define ICE_TC_FLWR_FIELD_PPPOE_SESSID BIT(20)
28 #define ICE_TC_FLWR_FIELD_PPP_PROTO BIT(21)
29 #define ICE_TC_FLWR_FIELD_IP_TOS BIT(22)
30 #define ICE_TC_FLWR_FIELD_IP_TTL BIT(23)
31 #define ICE_TC_FLWR_FIELD_ENC_IP_TOS BIT(24)
32 #define ICE_TC_FLWR_FIELD_ENC_IP_TTL BIT(25)
33 #define ICE_TC_FLWR_FIELD_L2TPV3_SESSID BIT(26)
34 #define ICE_TC_FLWR_FIELD_VLAN_PRIO BIT(27)
35 #define ICE_TC_FLWR_FIELD_CVLAN_PRIO BIT(28)
36
37 #define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF
38
39 #define ICE_IPV6_HDR_TC_MASK 0xFF00000
40
41 struct ice_indr_block_priv {
42 struct net_device *netdev;
43 struct ice_netdev_priv *np;
44 struct list_head list;
45 };
46
47 struct ice_tc_flower_action {
48 u32 tc_class;
49 enum ice_sw_fwd_act_type fltr_act;
50 };
51
52 struct ice_tc_vlan_hdr {
53 __be16 vlan_id; /* Only last 12 bits valid */
54 __be16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */
55 __be16 vlan_tpid;
56 };
57
58 struct ice_tc_pppoe_hdr {
59 __be16 session_id;
60 __be16 ppp_proto;
61 };
62
63 struct ice_tc_l2_hdr {
64 u8 dst_mac[ETH_ALEN];
65 u8 src_mac[ETH_ALEN];
66 __be16 n_proto; /* Ethernet Protocol */
67 };
68
69 struct ice_tc_l3_hdr {
70 u8 ip_proto; /* IPPROTO value */
71 union {
72 struct {
73 struct in_addr dst_ip;
74 struct in_addr src_ip;
75 } v4;
76 struct {
77 struct in6_addr dst_ip6;
78 struct in6_addr src_ip6;
79 } v6;
80 } ip;
81 #define dst_ipv6 ip.v6.dst_ip6.s6_addr32
82 #define dst_ipv6_addr ip.v6.dst_ip6.s6_addr
83 #define src_ipv6 ip.v6.src_ip6.s6_addr32
84 #define src_ipv6_addr ip.v6.src_ip6.s6_addr
85 #define dst_ipv4 ip.v4.dst_ip.s_addr
86 #define src_ipv4 ip.v4.src_ip.s_addr
87
88 u8 tos;
89 u8 ttl;
90 };
91
92 struct ice_tc_l2tpv3_hdr {
93 __be32 session_id;
94 };
95
96 struct ice_tc_l4_hdr {
97 __be16 dst_port;
98 __be16 src_port;
99 };
100
101 struct ice_tc_flower_lyr_2_4_hdrs {
102 /* L2 layer fields with their mask */
103 struct ice_tc_l2_hdr l2_key;
104 struct ice_tc_l2_hdr l2_mask;
105 struct ice_tc_vlan_hdr vlan_hdr;
106 struct ice_tc_vlan_hdr cvlan_hdr;
107 struct ice_tc_pppoe_hdr pppoe_hdr;
108 struct ice_tc_l2tpv3_hdr l2tpv3_hdr;
109 /* L3 (IPv4[6]) layer fields with their mask */
110 struct ice_tc_l3_hdr l3_key;
111 struct ice_tc_l3_hdr l3_mask;
112
113 /* L4 layer fields with their mask */
114 struct ice_tc_l4_hdr l4_key;
115 struct ice_tc_l4_hdr l4_mask;
116 };
117
118 enum ice_eswitch_fltr_direction {
119 ICE_ESWITCH_FLTR_INGRESS,
120 ICE_ESWITCH_FLTR_EGRESS,
121 };
122
123 struct ice_tc_flower_fltr {
124 struct hlist_node tc_flower_node;
125
126 /* cookie becomes filter_rule_id if rule is added successfully */
127 unsigned long cookie;
128
129 /* add_adv_rule returns information like recipe ID, rule_id. Store
130 * those values since they are needed to remove advanced rule
131 */
132 u16 rid;
133 u16 rule_id;
134 /* this could be queue/vsi_idx (sw handle)/queue_group, depending upon
135 * destination type
136 */
137 u16 dest_id;
138 /* if dest_id is vsi_idx, then need to store destination VSI ptr */
139 struct ice_vsi *dest_vsi;
140 /* direction of fltr for eswitch use case */
141 enum ice_eswitch_fltr_direction direction;
142
143 /* Parsed TC flower configuration params */
144 struct ice_tc_flower_lyr_2_4_hdrs outer_headers;
145 struct ice_tc_flower_lyr_2_4_hdrs inner_headers;
146 struct ice_vsi *src_vsi;
147 __be32 tenant_id;
148 struct gtp_pdu_session_info gtp_pdu_info_keys;
149 struct gtp_pdu_session_info gtp_pdu_info_masks;
150 u32 flags;
151 u8 tunnel_type;
152 struct ice_tc_flower_action action;
153
154 /* cache ptr which is used wherever needed to communicate netlink
155 * messages
156 */
157 struct netlink_ext_ack *extack;
158 };
159
160 /**
161 * ice_is_chnl_fltr - is this a valid channel filter
162 * @f: Pointer to tc-flower filter
163 *
164 * Criteria to determine of given filter is valid channel filter
165 * or not is based on its "destination". If destination is hw_tc (aka tc_class)
166 * and it is non-zero, then it is valid channel (aka ADQ) filter
167 */
ice_is_chnl_fltr(struct ice_tc_flower_fltr * f)168 static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f)
169 {
170 return !!f->action.tc_class;
171 }
172
173 /**
174 * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count
175 * @pf: Pointer to PF
176 */
ice_chnl_dmac_fltr_cnt(struct ice_pf * pf)177 static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
178 {
179 return pf->num_dmac_chnl_fltrs;
180 }
181
182 int
183 ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
184 struct flow_cls_offload *cls_flower);
185 int
186 ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
187 void ice_replay_tc_fltrs(struct ice_pf *pf);
188 bool ice_is_tunnel_supported(struct net_device *dev);
189
190 #endif /* _ICE_TC_LIB_H_ */
191