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