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
 41struct ice_indr_block_priv {
 42	struct net_device *netdev;
 43	struct ice_netdev_priv *np;
 44	struct list_head list;
 45};
 46
 47struct 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
 65struct 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
 71struct ice_tc_pppoe_hdr {
 72	__be16 session_id;
 73	__be16 ppp_proto;
 74};
 75
 76struct ice_tc_l2_hdr {
 77	u8 dst_mac[ETH_ALEN];
 78	u8 src_mac[ETH_ALEN];
 79	__be16 n_proto;    /* Ethernet Protocol */
 80};
 81
 82struct 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
105struct ice_tc_l2tpv3_hdr {
106	__be32 session_id;
107};
108
109struct ice_tc_l4_hdr {
110	__be16 dst_port;
111	__be16 src_port;
112};
113
114struct 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
131enum ice_eswitch_fltr_direction {
132	ICE_ESWITCH_FLTR_INGRESS,
133	ICE_ESWITCH_FLTR_EGRESS,
134};
135
136struct 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 */
186static 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 */
201static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf)
202{
203	return pf->num_dmac_chnl_fltrs;
204}
205
206int
207ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
208		   struct flow_cls_offload *cls_flower);
209int
210ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower);
211void ice_replay_tc_fltrs(struct ice_pf *pf);
212bool ice_is_tunnel_supported(struct net_device *dev);
213
214#endif /* _ICE_TC_LIB_H_ */