drivers/net/ethernet/sfc/mae.h

   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_mport(struct efx_nic *efx, u32 mport_id, u32 *out);
  27
  28 int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
  29
  30 struct mae_mport_desc {
  31         u32 mport_id;
  32         u32 flags;
  33         u32 caller_flags; /* enum mae_mport_desc_caller_flags */
  34         u32 mport_type; /* MAE_MPORT_DESC_MPORT_TYPE_* */
  35         union {
  36                 u32 port_idx; /* for mport_type == NET_PORT */
  37                 u32 alias_mport_id; /* for mport_type == ALIAS */
  38                 struct { /* for mport_type == VNIC */
  39                         u32 vnic_client_type; /* MAE_MPORT_DESC_VNIC_CLIENT_TYPE_* */
  40                         u32 interface_idx;
  41                         u16 pf_idx;
  42                         u16 vf_idx;
  43                 };
  44         };
  45         struct rhash_head linkage;
  46         struct devlink_port dl_port;
  47 };
  48
  49 int efx_mae_enumerate_mports(struct efx_nic *efx);
  50 struct mae_mport_desc *efx_mae_get_mport(struct efx_nic *efx, u32 mport_id);
  51 void efx_mae_put_mport(struct efx_nic *efx, struct mae_mport_desc *desc);
  52
  53 /**
  54  * struct efx_mae - MAE information
  55  *
  56  * @efx: The associated NIC
  57  * @mports_ht: m-port descriptions from MC_CMD_MAE_MPORT_READ_JOURNAL
  58  */
  59 struct efx_mae {
  60         struct efx_nic *efx;
  61         struct rhashtable mports_ht;
  62 };
  63
  64 int efx_mae_start_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
  65 int efx_mae_stop_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
  66 void efx_mae_counters_grant_credits(struct work_struct *work);
  67
  68 int efx_mae_get_tables(struct efx_nic *efx);
  69 void efx_mae_free_tables(struct efx_nic *efx);
  70
  71 #define MAE_NUM_FIELDS  (MAE_FIELD_ENC_VNET_ID + 1)
  72
  73 struct mae_caps {
  74         u32 match_field_count;
  75         u32 encap_types;
  76         u32 action_prios;
  77         u8 action_rule_fields[MAE_NUM_FIELDS];
  78         u8 outer_rule_fields[MAE_NUM_FIELDS];
  79 };
  80
  81 int efx_mae_get_caps(struct efx_nic *efx, struct mae_caps *caps);
  82
  83 int efx_mae_match_check_caps(struct efx_nic *efx,
  84                              const struct efx_tc_match_fields *mask,
  85                              struct netlink_ext_ack *extack);
  86 int efx_mae_match_check_caps_lhs(struct efx_nic *efx,
  87                                  const struct efx_tc_match_fields *mask,
  88                                  struct netlink_ext_ack *extack);
  89 int efx_mae_check_encap_match_caps(struct efx_nic *efx, bool ipv6,
  90                                    u8 ip_tos_mask, __be16 udp_sport_mask,
  91                                    struct netlink_ext_ack *extack);
  92 int efx_mae_check_encap_type_supported(struct efx_nic *efx,
  93                                        enum efx_encap_type typ);
  94
  95 int efx_mae_allocate_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
  96 int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
  97
  98 int efx_mae_allocate_encap_md(struct efx_nic *efx,
  99                               struct efx_tc_encap_action *encap);
 100 int efx_mae_update_encap_md(struct efx_nic *efx,
 101                             struct efx_tc_encap_action *encap);
 102 int efx_mae_free_encap_md(struct efx_nic *efx,
 103                           struct efx_tc_encap_action *encap);
 104
 105 int efx_mae_allocate_pedit_mac(struct efx_nic *efx,
 106                                struct efx_tc_mac_pedit_action *ped);
 107 void efx_mae_free_pedit_mac(struct efx_nic *efx,
 108                             struct efx_tc_mac_pedit_action *ped);
 109 int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act);
 110 int efx_mae_free_action_set(struct efx_nic *efx, u32 fw_id);
 111
 112 int efx_mae_alloc_action_set_list(struct efx_nic *efx,
 113                                   struct efx_tc_action_set_list *acts);
 114 int efx_mae_free_action_set_list(struct efx_nic *efx,
 115                                  struct efx_tc_action_set_list *acts);
 116
 117 int efx_mae_register_encap_match(struct efx_nic *efx,
 118                                  struct efx_tc_encap_match *encap);
 119 int efx_mae_unregister_encap_match(struct efx_nic *efx,
 120                                    struct efx_tc_encap_match *encap);
 121 int efx_mae_insert_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule,
 122                             u32 prio);
 123 int efx_mae_remove_lhs_rule(struct efx_nic *efx, struct efx_tc_lhs_rule *rule);
 124 struct efx_tc_ct_entry; /* see tc_conntrack.h */
 125 int efx_mae_insert_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn);
 126 int efx_mae_remove_ct(struct efx_nic *efx, struct efx_tc_ct_entry *conn);
 127
 128 int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match,
 129                         u32 prio, u32 acts_id, u32 *id);
 130 int efx_mae_update_rule(struct efx_nic *efx, u32 acts_id, u32 id);
 131 int efx_mae_delete_rule(struct efx_nic *efx, u32 id);
 132
 133 int efx_init_mae(struct efx_nic *efx);
 134 void efx_fini_mae(struct efx_nic *efx);
 135 void efx_mae_remove_mport(void *desc, void *arg);
 136 int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
 137 int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf, u32 *id);
 138 #endif /* EF100_MAE_H */