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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* SPDX-License-Identifier: GPL-2.0-only */ /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2019 Solarflare Communications Inc. * Copyright 2020-2022 Xilinx Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published * by the Free Software Foundation, incorporated herein by reference. */ #ifndef EFX_TC_H #define EFX_TC_H #include <net/flow_offload.h> #include <linux/rhashtable.h> #include "net_driver.h" /* Error reporting: convenience macros. For indicating why a given filter * insertion is not supported; errors in internal operation or in the * hardware should be netif_err()s instead. */ /* Used when error message is constant. */ #define EFX_TC_ERR_MSG(efx, extack, message) do { \ NL_SET_ERR_MSG_MOD(extack, message); \ if (efx->log_tc_errs) \ netif_info(efx, drv, efx->net_dev, "%s\n", message); \ } while (0) /* Used when error message is not constant; caller should also supply a * constant extack message with NL_SET_ERR_MSG_MOD(). */ #define efx_tc_err(efx, fmt, args...) do { \ if (efx->log_tc_errs) \ netif_info(efx, drv, efx->net_dev, fmt, ##args);\ } while (0) struct efx_tc_action_set { u16 deliver:1; u32 dest_mport; u32 fw_id; /* index of this entry in firmware actions table */ struct list_head list; }; struct efx_tc_match_fields { /* L1 */ u32 ingress_port; u8 recirc_id; }; struct efx_tc_match { struct efx_tc_match_fields value; struct efx_tc_match_fields mask; }; struct efx_tc_action_set_list { struct list_head list; u32 fw_id; }; struct efx_tc_flow_rule { unsigned long cookie; struct rhash_head linkage; struct efx_tc_match match; struct efx_tc_action_set_list acts; u32 fw_id; }; enum efx_tc_rule_prios { EFX_TC_PRIO_TC, /* Rule inserted by TC */ EFX_TC_PRIO_DFLT, /* Default switch rule; one of efx_tc_default_rules */ EFX_TC_PRIO__NUM }; /** * struct efx_tc_state - control plane data for TC offload * * @caps: MAE capabilities reported by MCDI * @block_list: List of &struct efx_tc_block_binding * @mutex: Used to serialise operations on TC hashtables * @match_action_ht: Hashtable of TC match-action rules * @reps_mport_id: MAE port allocated for representor RX * @reps_filter_uc: VNIC filter for representor unicast RX (promisc) * @reps_filter_mc: VNIC filter for representor multicast RX (allmulti) * @reps_mport_vport_id: vport_id for representor RX filters * @dflt: Match-action rules for default switching; at priority * %EFX_TC_PRIO_DFLT. Named by *ingress* port * @dflt.pf: rule for traffic ingressing from PF (egresses to wire) * @dflt.wire: rule for traffic ingressing from wire (egresses to PF) * @up: have TC datastructures been set up? */ struct efx_tc_state { struct mae_caps *caps; struct list_head block_list; struct mutex mutex; struct rhashtable match_action_ht; u32 reps_mport_id, reps_mport_vport_id; s32 reps_filter_uc, reps_filter_mc; struct { struct efx_tc_flow_rule pf; struct efx_tc_flow_rule wire; } dflt; bool up; }; struct efx_rep; int efx_tc_configure_default_rule_rep(struct efx_rep *efv); void efx_tc_deconfigure_default_rule(struct efx_nic *efx, struct efx_tc_flow_rule *rule); int efx_tc_flower(struct efx_nic *efx, struct net_device *net_dev, struct flow_cls_offload *tc, struct efx_rep *efv); int efx_tc_insert_rep_filters(struct efx_nic *efx); void efx_tc_remove_rep_filters(struct efx_nic *efx); int efx_init_tc(struct efx_nic *efx); void efx_fini_tc(struct efx_nic *efx); int efx_init_struct_tc(struct efx_nic *efx); void efx_fini_struct_tc(struct efx_nic *efx); #endif /* EFX_TC_H */ |