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 | #define ICE_TC_FLWR_FIELD_VLAN_TPID BIT(29) |
37 | |
38 | #define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF |
39 | |
40 | #define ICE_IPV6_HDR_TC_MASK 0xFF00000 |
41 | |
42 | struct ice_indr_block_priv { |
43 | struct net_device *netdev; |
44 | struct ice_netdev_priv *np; |
45 | struct list_head list; |
46 | }; |
47 | |
48 | struct ice_tc_flower_action { |
49 | /* forward action specific params */ |
50 | union { |
51 | struct { |
52 | u32 tc_class; /* forward to hw_tc */ |
53 | u32 rsvd; |
54 | } tc; |
55 | struct { |
56 | u16 queue; /* forward to queue */ |
57 | /* To add filter in HW, absolute queue number in global |
58 | * space of queues (between 0...N) is needed |
59 | */ |
60 | u16 hw_queue; |
61 | } q; |
62 | } fwd; |
63 | enum ice_sw_fwd_act_type fltr_act; |
64 | }; |
65 | |
66 | struct ice_tc_vlan_hdr { |
67 | __be16 vlan_id; /* Only last 12 bits valid */ |
68 | __be16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */ |
69 | __be16 vlan_tpid; |
70 | }; |
71 | |
72 | struct ice_tc_pppoe_hdr { |
73 | __be16 session_id; |
74 | __be16 ppp_proto; |
75 | }; |
76 | |
77 | struct ice_tc_l2_hdr { |
78 | u8 dst_mac[ETH_ALEN]; |
79 | u8 src_mac[ETH_ALEN]; |
80 | __be16 n_proto; /* Ethernet Protocol */ |
81 | }; |
82 | |
83 | struct ice_tc_l3_hdr { |
84 | u8 ip_proto; /* IPPROTO value */ |
85 | union { |
86 | struct { |
87 | struct in_addr dst_ip; |
88 | struct in_addr src_ip; |
89 | } v4; |
90 | struct { |
91 | struct in6_addr dst_ip6; |
92 | struct in6_addr src_ip6; |
93 | } v6; |
94 | } ip; |
95 | #define dst_ipv6 ip.v6.dst_ip6.s6_addr32 |
96 | #define dst_ipv6_addr ip.v6.dst_ip6.s6_addr |
97 | #define src_ipv6 ip.v6.src_ip6.s6_addr32 |
98 | #define src_ipv6_addr ip.v6.src_ip6.s6_addr |
99 | #define dst_ipv4 ip.v4.dst_ip.s_addr |
100 | #define src_ipv4 ip.v4.src_ip.s_addr |
101 | |
102 | u8 tos; |
103 | u8 ttl; |
104 | }; |
105 | |
106 | struct ice_tc_l2tpv3_hdr { |
107 | __be32 session_id; |
108 | }; |
109 | |
110 | struct ice_tc_l4_hdr { |
111 | __be16 dst_port; |
112 | __be16 src_port; |
113 | }; |
114 | |
115 | struct ice_tc_flower_lyr_2_4_hdrs { |
116 | /* L2 layer fields with their mask */ |
117 | struct ice_tc_l2_hdr l2_key; |
118 | struct ice_tc_l2_hdr l2_mask; |
119 | struct ice_tc_vlan_hdr vlan_hdr; |
120 | struct ice_tc_vlan_hdr cvlan_hdr; |
121 | struct ice_tc_pppoe_hdr pppoe_hdr; |
122 | struct ice_tc_l2tpv3_hdr l2tpv3_hdr; |
123 | /* L3 (IPv4[6]) layer fields with their mask */ |
124 | struct ice_tc_l3_hdr l3_key; |
125 | struct ice_tc_l3_hdr l3_mask; |
126 | |
127 | /* L4 layer fields with their mask */ |
128 | struct ice_tc_l4_hdr l4_key; |
129 | struct ice_tc_l4_hdr l4_mask; |
130 | }; |
131 | |
132 | enum ice_eswitch_fltr_direction { |
133 | ICE_ESWITCH_FLTR_INGRESS, |
134 | ICE_ESWITCH_FLTR_EGRESS, |
135 | }; |
136 | |
137 | struct ice_tc_flower_fltr { |
138 | struct hlist_node tc_flower_node; |
139 | |
140 | /* cookie becomes filter_rule_id if rule is added successfully */ |
141 | unsigned long cookie; |
142 | |
143 | /* add_adv_rule returns information like recipe ID, rule_id. Store |
144 | * those values since they are needed to remove advanced rule |
145 | */ |
146 | u16 rid; |
147 | u16 rule_id; |
148 | /* VSI handle of the destination VSI (it could be main PF VSI, CHNL_VSI, |
149 | * VF VSI) |
150 | */ |
151 | u16 dest_vsi_handle; |
152 | /* ptr to destination VSI */ |
153 | struct ice_vsi *dest_vsi; |
154 | /* direction of fltr for eswitch use case */ |
155 | enum ice_eswitch_fltr_direction direction; |
156 | |
157 | /* Parsed TC flower configuration params */ |
158 | struct ice_tc_flower_lyr_2_4_hdrs ; |
159 | struct ice_tc_flower_lyr_2_4_hdrs ; |
160 | struct ice_vsi *src_vsi; |
161 | __be32 tenant_id; |
162 | struct gtp_pdu_session_info gtp_pdu_info_keys; |
163 | struct gtp_pdu_session_info gtp_pdu_info_masks; |
164 | u32 flags; |
165 | u8 tunnel_type; |
166 | struct ice_tc_flower_action action; |
167 | |
168 | /* cache ptr which is used wherever needed to communicate netlink |
169 | * messages |
170 | */ |
171 | struct netlink_ext_ack *extack; |
172 | }; |
173 | |
174 | /** |
175 | * ice_is_chnl_fltr - is this a valid channel filter |
176 | * @f: Pointer to tc-flower filter |
177 | * |
178 | * Criteria to determine of given filter is valid channel filter |
179 | * or not is based on its destination. |
180 | * For forward to VSI action, if destination is valid hw_tc (aka tc_class) |
181 | * and in supported range of TCs for ADQ, then return true. |
182 | * For forward to queue, as long as dest_vsi is valid and it is of type |
183 | * VSI_CHNL (PF ADQ VSI is of type VSI_CHNL), return true. |
184 | * NOTE: For forward to queue, correct dest_vsi is still set in tc_fltr based |
185 | * on destination queue specified. |
186 | */ |
187 | static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f) |
188 | { |
189 | if (f->action.fltr_act == ICE_FWD_TO_VSI) |
190 | return f->action.fwd.tc.tc_class >= ICE_CHNL_START_TC && |
191 | f->action.fwd.tc.tc_class < ICE_CHNL_MAX_TC; |
192 | else if (f->action.fltr_act == ICE_FWD_TO_Q) |
193 | return f->dest_vsi && f->dest_vsi->type == ICE_VSI_CHNL; |
194 | |
195 | return false; |
196 | } |
197 | |
198 | /** |
199 | * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count |
200 | * @pf: Pointer to PF |
201 | */ |
202 | static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf) |
203 | { |
204 | return pf->num_dmac_chnl_fltrs; |
205 | } |
206 | |
207 | struct ice_vsi *ice_locate_vsi_using_queue(struct ice_vsi *vsi, int queue); |
208 | int |
209 | ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi, |
210 | struct flow_cls_offload *cls_flower); |
211 | int |
212 | ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower); |
213 | void ice_replay_tc_fltrs(struct ice_pf *pf); |
214 | bool ice_is_tunnel_supported(struct net_device *dev); |
215 | |
216 | static inline bool ice_is_forward_action(enum ice_sw_fwd_act_type fltr_act) |
217 | { |
218 | switch (fltr_act) { |
219 | case ICE_FWD_TO_VSI: |
220 | case ICE_FWD_TO_Q: |
221 | return true; |
222 | default: |
223 | return false; |
224 | } |
225 | } |
226 | #endif /* _ICE_TC_LIB_H_ */ |
227 | |