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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a94a614fa2
One of the conditions to generate an ICMP Redirect Message is that "the
packet is being forwarded out the same physical interface that it was
received from" (RFC 1812).
Therefore, we need to be able to trap such packets and let the kernel
decide what to do with them.
For each RIF, enable the loop-back filter, which will raise the LBERROR
trap whenever the ingress RIF equals the egress RIF.
Fixes: 99724c18fc ("mlxsw: spectrum: Introduce support for router interfaces")
Reported-by: Ilan Tayari <ilant@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/*
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* drivers/net/ethernet/mellanox/mlxsw/trap.h
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* Copyright (c) 2015 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
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* Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
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* Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the names of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MLXSW_TRAP_H
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#define _MLXSW_TRAP_H
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enum {
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/* Ethernet EMAD and FDB miss */
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MLXSW_TRAP_ID_FDB_MC = 0x01,
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MLXSW_TRAP_ID_ETHEMAD = 0x05,
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/* L2 traps for specific packet types */
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MLXSW_TRAP_ID_STP = 0x10,
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MLXSW_TRAP_ID_LACP = 0x11,
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MLXSW_TRAP_ID_EAPOL = 0x12,
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MLXSW_TRAP_ID_LLDP = 0x13,
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MLXSW_TRAP_ID_MMRP = 0x14,
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MLXSW_TRAP_ID_MVRP = 0x15,
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MLXSW_TRAP_ID_RPVST = 0x16,
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MLXSW_TRAP_ID_DHCP = 0x19,
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MLXSW_TRAP_ID_IGMP_QUERY = 0x30,
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MLXSW_TRAP_ID_IGMP_V1_REPORT = 0x31,
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MLXSW_TRAP_ID_IGMP_V2_REPORT = 0x32,
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MLXSW_TRAP_ID_IGMP_V2_LEAVE = 0x33,
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MLXSW_TRAP_ID_IGMP_V3_REPORT = 0x34,
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MLXSW_TRAP_ID_ARPBC = 0x50,
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MLXSW_TRAP_ID_ARPUC = 0x51,
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MLXSW_TRAP_ID_MTUERROR = 0x52,
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MLXSW_TRAP_ID_TTLERROR = 0x53,
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MLXSW_TRAP_ID_LBERROR = 0x54,
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MLXSW_TRAP_ID_OSPF = 0x55,
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MLXSW_TRAP_ID_IP2ME = 0x5F,
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MLXSW_TRAP_ID_RTR_INGRESS0 = 0x70,
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MLXSW_TRAP_ID_HOST_MISS_IPV4 = 0x90,
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MLXSW_TRAP_ID_MAX = 0x1FF
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};
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enum mlxsw_event_trap_id {
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/* Port Up/Down event generated by hardware */
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MLXSW_TRAP_ID_PUDE = 0x8,
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};
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#endif /* _MLXSW_TRAP_H */
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