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48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/****************************************************************************
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* Driver for Solarflare network controllers and boards
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* Copyright 2023, Advanced Micro Devices, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation, incorporated herein by reference.
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*/
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#ifndef EFX_TC_ENCAP_ACTIONS_H
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#define EFX_TC_ENCAP_ACTIONS_H
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#include "net_driver.h"
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#include <linux/refcount.h>
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#include <net/tc_act/tc_tunnel_key.h>
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/* This limit is arbitrary; current hardware (SN1022) handles encap headers
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* of up to 126 bytes, but that limit is not enshrined in the MCDI protocol.
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*/
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#define EFX_TC_MAX_ENCAP_HDR 126
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struct efx_tc_encap_action {
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enum efx_encap_type type;
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struct ip_tunnel_key key; /* 52 bytes */
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u32 dest_mport; /* is copied into struct efx_tc_action_set */
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u8 encap_hdr_len;
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u8 encap_hdr[EFX_TC_MAX_ENCAP_HDR];
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struct rhash_head linkage; /* efx->tc_encap_ht */
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refcount_t ref;
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u32 fw_id; /* index of this entry in firmware encap table */
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};
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/* create/uncreate/teardown hashtables */
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int efx_tc_init_encap_actions(struct efx_nic *efx);
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void efx_tc_destroy_encap_actions(struct efx_nic *efx);
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void efx_tc_fini_encap_actions(struct efx_nic *efx);
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struct efx_tc_flow_rule;
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bool efx_tc_check_ready(struct efx_nic *efx, struct efx_tc_flow_rule *rule);
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struct efx_tc_encap_action *efx_tc_flower_create_encap_md(
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struct efx_nic *efx, const struct ip_tunnel_info *info,
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struct net_device *egdev, struct netlink_ext_ack *extack);
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void efx_tc_flower_release_encap_md(struct efx_nic *efx,
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struct efx_tc_encap_action *encap);
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#endif /* EFX_TC_ENCAP_ACTIONS_H */
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