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17654d84b4
A 'foreign' rule is one for which the net_dev is not the sfc netdevice
or any of its representors. The driver registers indirect flow blocks
for tunnel netdevs so that it can offload decap rules. For example:
tc filter add dev vxlan0 parent ffff: protocol ipv4 flower \
enc_src_ip 10.1.0.2 enc_dst_ip 10.1.0.1 \
enc_key_id 1000 enc_dst_port 4789 \
action tunnel_key unset \
action mirred egress redirect dev $REPRESENTOR
When notified of a rule like this, register an encap match on the IP
and dport tuple (creating an Outer Rule table entry) and insert an MAE
action rule to perform the decapsulation and deliver to the representee.
Moved efx_tc_delete_rule() below efx_tc_flower_release_encap_match() to
avoid the need for a forward declaration.
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
114 lines
4 KiB
C
114 lines
4 KiB
C
/* 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 2019 Solarflare Communications Inc.
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* Copyright 2020-2022 Xilinx 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 EF100_MAE_H
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#define EF100_MAE_H
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/* MCDI interface for the ef100 Match-Action Engine */
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#include <net/devlink.h>
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#include "net_driver.h"
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#include "tc.h"
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#include "mcdi_pcol.h" /* needed for various MC_CMD_MAE_*_NULL defines */
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int efx_mae_allocate_mport(struct efx_nic *efx, u32 *id, u32 *label);
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int efx_mae_free_mport(struct efx_nic *efx, u32 id);
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void efx_mae_mport_wire(struct efx_nic *efx, u32 *out);
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void efx_mae_mport_uplink(struct efx_nic *efx, u32 *out);
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void efx_mae_mport_vf(struct efx_nic *efx, u32 vf_id, u32 *out);
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void efx_mae_mport_mport(struct efx_nic *efx, u32 mport_id, u32 *out);
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int efx_mae_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
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struct mae_mport_desc {
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u32 mport_id;
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u32 flags;
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u32 caller_flags; /* enum mae_mport_desc_caller_flags */
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u32 mport_type; /* MAE_MPORT_DESC_MPORT_TYPE_* */
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union {
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u32 port_idx; /* for mport_type == NET_PORT */
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u32 alias_mport_id; /* for mport_type == ALIAS */
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struct { /* for mport_type == VNIC */
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u32 vnic_client_type; /* MAE_MPORT_DESC_VNIC_CLIENT_TYPE_* */
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u32 interface_idx;
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u16 pf_idx;
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u16 vf_idx;
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};
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};
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struct rhash_head linkage;
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struct devlink_port dl_port;
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};
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int efx_mae_enumerate_mports(struct efx_nic *efx);
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struct mae_mport_desc *efx_mae_get_mport(struct efx_nic *efx, u32 mport_id);
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void efx_mae_put_mport(struct efx_nic *efx, struct mae_mport_desc *desc);
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/**
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* struct efx_mae - MAE information
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*
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* @efx: The associated NIC
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* @mports_ht: m-port descriptions from MC_CMD_MAE_MPORT_READ_JOURNAL
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*/
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struct efx_mae {
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struct efx_nic *efx;
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struct rhashtable mports_ht;
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};
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int efx_mae_start_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
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int efx_mae_stop_counters(struct efx_nic *efx, struct efx_rx_queue *rx_queue);
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void efx_mae_counters_grant_credits(struct work_struct *work);
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#define MAE_NUM_FIELDS (MAE_FIELD_ENC_VNET_ID + 1)
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struct mae_caps {
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u32 match_field_count;
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u32 encap_types;
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u32 action_prios;
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u8 action_rule_fields[MAE_NUM_FIELDS];
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u8 outer_rule_fields[MAE_NUM_FIELDS];
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};
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int efx_mae_get_caps(struct efx_nic *efx, struct mae_caps *caps);
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int efx_mae_match_check_caps(struct efx_nic *efx,
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const struct efx_tc_match_fields *mask,
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struct netlink_ext_ack *extack);
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int efx_mae_check_encap_match_caps(struct efx_nic *efx, bool ipv6,
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struct netlink_ext_ack *extack);
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int efx_mae_check_encap_type_supported(struct efx_nic *efx,
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enum efx_encap_type typ);
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int efx_mae_allocate_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
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int efx_mae_free_counter(struct efx_nic *efx, struct efx_tc_counter *cnt);
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int efx_mae_alloc_action_set(struct efx_nic *efx, struct efx_tc_action_set *act);
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int efx_mae_free_action_set(struct efx_nic *efx, u32 fw_id);
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int efx_mae_alloc_action_set_list(struct efx_nic *efx,
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struct efx_tc_action_set_list *acts);
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int efx_mae_free_action_set_list(struct efx_nic *efx,
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struct efx_tc_action_set_list *acts);
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int efx_mae_register_encap_match(struct efx_nic *efx,
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struct efx_tc_encap_match *encap);
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int efx_mae_unregister_encap_match(struct efx_nic *efx,
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struct efx_tc_encap_match *encap);
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int efx_mae_insert_rule(struct efx_nic *efx, const struct efx_tc_match *match,
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u32 prio, u32 acts_id, u32 *id);
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int efx_mae_delete_rule(struct efx_nic *efx, u32 id);
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int efx_init_mae(struct efx_nic *efx);
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void efx_fini_mae(struct efx_nic *efx);
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void efx_mae_remove_mport(void *desc, void *arg);
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int efx_mae_fw_lookup_mport(struct efx_nic *efx, u32 selector, u32 *id);
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int efx_mae_lookup_mport(struct efx_nic *efx, u32 vf, u32 *id);
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#endif /* EF100_MAE_H */
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