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