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 outer_headers;
159 struct ice_tc_flower_lyr_2_4_hdrs inner_headers;
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 */
ice_is_chnl_fltr(struct ice_tc_flower_fltr * f)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 */
ice_chnl_dmac_fltr_cnt(struct ice_pf * pf)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
ice_is_forward_action(enum ice_sw_fwd_act_type fltr_act)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