xref: /openbmc/linux/drivers/net/ethernet/sfc/mae.h (revision 439c4be9)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /****************************************************************************
3  * Driver for Solarflare network controllers and boards
4  * Copyright 2019 Solarflare Communications Inc.
5  * Copyright 2020-2022 Xilinx Inc.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License version 2 as published
9  * by the Free Software Foundation, incorporated herein by reference.
10  */
11 
12 #ifndef EF100_MAE_H
13 #define EF100_MAE_H
14 /* MCDI interface for the ef100 Match-Action Engine */
15 
16 #include <net/devlink.h>
17 #include "net_driver.h"
18 #include "tc.h"
19 #include "mcdi_pcol.h" /* needed for various MC_CMD_MAE_*_NULL defines */
20 
21 int efx_mae_allocate_mport(struct efx_nic *efx, u32 *id, u32 *label);
22 int efx_mae_free_mport(struct efx_nic *efx, u32 id);
23 
24 void efx_mae_mport_wire(struct efx_nic *efx, u32 *out);
25 void efx_mae_mport_uplink(struct efx_nic *efx, u32 *out);
26 void efx_mae_mport_vf(struct efx_nic *efx, u32 vf_id, u32 *out);
27 void efx_mae_mport_mport(struct efx_nic *efx, u32 mport_id, u32 *out);
28 
29 int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
30 
31 struct mae_mport_desc {
32 	u32 mport_id;
33 	u32 flags;
34 	u32 caller_flags; /* enum mae_mport_desc_caller_flags */
35 	u32 mport_type; /* MAE_MPORT_DESC_MPORT_TYPE_* */
36 	union {
37 		u32 port_idx; /* for mport_type == NET_PORT */
38 		u32 alias_mport_id; /* for mport_type == ALIAS */
39 		struct { /* for mport_type == VNIC */
40 			u32 vnic_client_type; /* MAE_MPORT_DESC_VNIC_CLIENT_TYPE_* */
41 			u32 interface_idx;
42 			u16 pf_idx;
43 			u16 vf_idx;
44 		};
45 	};
46 	struct rhash_head linkage;
47 	struct devlink_port dl_port;
48 };
49 
50 int efx_mae_enumerate_mports(struct efx_nic *efx);
51 struct mae_mport_desc *efx_mae_get_mport(struct efx_nic *efx, u32 mport_id);
52 void efx_mae_put_mport(struct efx_nic *efx, struct mae_mport_desc *desc);
53 
54 /**
55  * struct efx_mae - MAE information
56  *
57  * @efx: The associated NIC
58  * @mports_ht: m-port descriptions from MC_CMD_MAE_MPORT_READ_JOURNAL
59  */
60 struct efx_mae {
61 	struct efx_nic *efx;
62 	struct rhashtable mports_ht;
63 };
64 
65 int efx_mae_start_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
66 int efx_mae_stop_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
67 void efx_mae_counters_grant_credits(struct work_struct *work);
68 
69 int efx_mae_get_tables(struct efx_nic *efx);
70 void efx_mae_free_tables(struct efx_nic *efx);
71 
72 #define MAE_NUM_FIELDS	(MAE_FIELD_ENC_VNET_ID + 1)
73 
74 struct mae_caps {
75 	u32 match_field_count;
76 	u32 encap_types;
77 	u32 action_prios;
78 	u8 action_rule_fields[MAE_NUM_FIELDS];
79 	u8 outer_rule_fields[MAE_NUM_FIELDS];
80 };
81 
82 int efx_mae_get_caps(struct efx_nic *efx, struct mae_caps *caps);
83 
84 int efx_mae_match_check_caps(struct efx_nic *efx,
85 			     const struct efx_tc_match_fields *mask,
86 			     struct netlink_ext_ack *extack);
87 int efx_mae_match_check_caps_lhs(struct efx_nic *efx,
88 				 const struct efx_tc_match_fields *mask,
89 				 struct netlink_ext_ack *extack);
90 int efx_mae_check_encap_match_caps(struct efx_nic *efx, bool ipv6,
91 				   u8 ip_tos_mask, __be16 udp_sport_mask,
92 				   struct netlink_ext_ack *extack);
93 int efx_mae_check_encap_type_supported(struct efx_nic *efx,
94 				       enum efx_encap_type typ);
95 
96 int efx_mae_allocate_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
97 int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
98 
99 int efx_mae_allocate_encap_md(struct efx_nic *efx,
100 			      struct efx_tc_encap_action *encap);
101 int efx_mae_update_encap_md(struct efx_nic *efx,
102 			    struct efx_tc_encap_action *encap);
103 int efx_mae_free_encap_md(struct efx_nic *efx,
104 			  struct efx_tc_encap_action *encap);
105 
106 int efx_mae_allocate_pedit_mac(struct efx_nic *efx,
107 			       struct efx_tc_mac_pedit_action *ped);
108 void efx_mae_free_pedit_mac(struct efx_nic *efx,
109 			    struct efx_tc_mac_pedit_action *ped);
110 int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act);
111 int efx_mae_free_action_set(struct efx_nic *efx, u32 fw_id);
112 
113 int efx_mae_alloc_action_set_list(struct efx_nic *efx,
114 				  struct efx_tc_action_set_list *acts);
115 int efx_mae_free_action_set_list(struct efx_nic *efx,
116 				 struct efx_tc_action_set_list *acts);
117 
118 int efx_mae_register_encap_match(struct efx_nic *efx,
119 				 struct efx_tc_encap_match *encap);
120 int efx_mae_unregister_encap_match(struct efx_nic *efx,
121 				   struct efx_tc_encap_match *encap);
122 int efx_mae_insert_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule,
123 			    u32 prio);
124 int efx_mae_remove_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule);
125 struct efx_tc_ct_entry; /* see tc_conntrack.h */
126 int efx_mae_insert_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn);
127 int efx_mae_remove_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn);
128 
129 int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match,
130 			u32 prio, u32 acts_id, u32 *id);
131 int efx_mae_update_rule(struct efx_nic *efx, u32 acts_id, u32 id);
132 int efx_mae_delete_rule(struct efx_nic *efx, u32 id);
133 
134 int efx_init_mae(struct efx_nic *efx);
135 void efx_fini_mae(struct efx_nic *efx);
136 void efx_mae_remove_mport(void *desc, void *arg);
137 int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
138 int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf, u32 *id);
139 #endif /* EF100_MAE_H */
140